CN104439621B - One becomes more meticulous Multifunctional welding welding system and control method thereof - Google Patents
One becomes more meticulous Multifunctional welding welding system and control method thereof Download PDFInfo
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- CN104439621B CN104439621B CN201410616044.7A CN201410616044A CN104439621B CN 104439621 B CN104439621 B CN 104439621B CN 201410616044 A CN201410616044 A CN 201410616044A CN 104439621 B CN104439621 B CN 104439621B
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- 238000003466 welding Methods 0.000 title claims abstract description 201
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004458 analytical method Methods 0.000 claims abstract description 31
- 238000005070 sampling Methods 0.000 claims abstract description 25
- 230000002452 interceptive effect Effects 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- 238000011084 recovery Methods 0.000 claims description 42
- 230000005669 field effect Effects 0.000 claims description 34
- 230000036413 temperature sense Effects 0.000 claims description 27
- 238000012360 testing method Methods 0.000 claims description 27
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
- B23K9/1043—Power supply characterised by the electric circuit
- B23K9/1056—Power supply characterised by the electric circuit by using digital means
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- Mechanical Engineering (AREA)
- Amplifiers (AREA)
- Rectifiers (AREA)
Abstract
One becomes more meticulous Multifunctional welding welding system, is provided with welding module；The sampling unit being arranged on welding module；The power module being electrically connected with sampling unit, welding module；It is additionally provided with the control module electrically connected with sampling unit, power module；Control module mainly includes for output pulse width modulator control signal and the main control circuit that is controlled other modules in this system and is connected with this main control circuit, the human-computer interactive control circuit regulated for model selection and parameter；Control module and welding module and between be also in series with small area analysis stable module；Small area analysis stable module mainly includes being sequentially connected in series: DC source, current-limiting resistance and control switch；Described power module uses the switching frequency of more than 60KHZ, makes the present invention have the most dynamically and rings speed and higher control accuracy, more preferable compatible multiple welding function；And the control method of correspondence a kind of Multifunctional welding welding system that becomes more meticulous of the present invention has above-mentioned advantage too.
Description
Technical field
The present invention relates to a kind of digital welding system, particularly relate to one and become more meticulous Multifunctional welding welding system and control method thereof.
Background technology
At present, plasma cutting inverter is widely used in the industry every profession and trade weld job to various non ferrous metal and their alloy.
Plasma cutting inverter is lightweight with it, and volume is little, produce consume less, energy-saving effect is notable and welding technological properties is outstanding and deep is favored by user.And interlock BUCK formula pulsewidth modulation multifunctional inversion type welding machine and digitized Multifunctional high-frequency inverter argon arc welding machine of digitized is all to use digital control chip to control the source of welding current in digital multifunctional welding system, multiple welding procedure is integrated in one, it is achieved the increment of one-machine-multi-function is used.But, when it come to small area analysis direct current finely welds, such as plate sheet welding, during the welding of little electronic original part, current Multifunctional welding welding system is because of welding current too small (less than 3 amperes, generally less than 1 ampere even 0.5 ampere) so that testing circuit is difficult to detection, cause power supply to be powered shakiness, ultimately cause cannot the small area analysis welding effect of compatible small area analysis welding machine technique or compatibility unsatisfactory.
Survey during current detecting in the reply small area analysis welding of detection limit instrument with high costs in view of the addition of Multifunctional welding welding system is accurate.It is necessary to provide a kind of also to be able to enough control accuracies and meet Multifunctional welding welding system that small area analysis (less than 1 ampere) direct current welding is become more meticulous without adding Precision measurement measuring instrument.
Summary of the invention
The technical problem to be solved in the present invention is to provide to possess multi-functional welding and possess the one of small area analysis direct current welding function and becomes more meticulous Multifunctional welding welding system, and the control method according to this compatible multiple welding function of welding system that becomes more meticulous.
One becomes more meticulous Multifunctional welding welding system, is provided with the welding module for implementing welding；It is arranged on welding module, for the sampling unit that welding current/voltage is sampled；It is electrically connected with sampling unit, welding module, for providing the power module of power supply for this Multifunctional welding welding system that becomes more meticulous；It is characterized in that, be additionally provided with and electrically connect with sampling unit, power module, for storing all kinds of weld signature parameter the control module other modules in the Multifunctional welding welding system that becomes more meticulous being controlled according to this feature parameter；Control module mainly includes for output pulse width modulator control signal and and the main control circuit that is controlled other modules in this system according to described characteristic parameter and being connected with this main control circuit, the human-computer interactive control circuit regulated for model selection and parameter；Small area analysis stable module also it is in series with between control module and welding module；Small area analysis stable module mainly includes being sequentially connected in series: DC source, current-limiting resistance and control switch.
Further, the temperature sense circuit being connected between control module and power module it is additionally provided with；
Being additionally provided with the fan drive circuit being connected respectively with control module and fan, the hotness signal that control module inputs according to temperature sense circuit controls the revolution that fan drive circuit promotes or reduces fan；
It is additionally provided with the fault induction module being connected respectively with temperature sense circuit, control module, when temperature sense circuit detecting to temperature exceed setting time, fault induction module sends fault-signal and stops output pulse width modulator control signal to control module, control module.
Further, power module mainly includes switch and filter circuit, rectifier bridge, mu balanced circuit, insulated gate bipolar translator power tube inverse changing driving circuit, main transformer, output rectification circuit, output reactance device, secondary insulating grid bipolar-type power pipe inverse changing driving circuit, the Hall element circuit being sequentially connected in series setting；Mu balanced circuit input has also been arranged in parallel auxiliary power circuit and primary side voltage sensor；The first critesistor it is additionally provided with on insulated gate bipolar translator power tube inverse changing driving circuit；Output rectification circuit is provided with the second critesistor；
Temperature sense circuit, one end is connected with first, second critesistor respectively, and one end is connected to main control circuit after fault induction module and connects；
Welding module is additionally provided with: the high-frequency arc strike control circuit that is connected between main control circuit and power module, anti-electric hit manual welding selection circuit, non-melt pole gas shield welding carries arc selection circuit；
Sampling unit is provided with pulse current sample circuit, current feedback circuit and the voltage feedback circuit being connected between control module and power module；Pulse current sample circuit one end is connected with main control circuit, and one end is connected to the node between main transformer and output rectification circuit；
Current feedback circuit one end is connected with main control circuit, and one end is connected to Hall element circuit；
Voltage feedback circuit one end is connected with main control circuit, and one end is connected to the node between Hall element circuit and the positive pole of welding module；
High-frequency arc strike control circuit is additionally provided with striking coil, and striking coil one end is connected with output rectification circuit, and one end is connected with the negative pole of welding module；
Anti-electric manual welding selection circuit one end of hitting is connected with main control circuit, and one end is connected to the node between output rectification circuit and striking coil；
Non-melt pole gas shield welding carries arc selection circuit one end and is connected with main control circuit, and one end is connected to the node between output rectification circuit and striking coil；
Fault induction module is additionally provided with the main circuit sensor being connected to node between insulated gate bipolar translator power tube inverse changing driving circuit and main transformer；
Human-computer interactive control circuit is provided with and is respectively connecting to the precision current adjustment circuit of main control circuit, with reference to regulation and mode selection switch；
Main control circuit is connected with electromagnetic valve also by air valve control circuit, for controlling the release of protective gas；
Main control circuit is connected with secondary insulating grid bipolar-type power pipe inverse changing driving circuit also by drive circuit；Drive circuit one end is connected to rectifier bridge and the node in mu balanced circuit；Fault induction module one end access in parallel with main control circuit drive circuit.
Further, power module uses the switching frequency of more than 60KHZ；Power module according to pulse-width modulation control signal to welding module voltage pulse output and pulse current.
Improving as one, current feedback circuit specifically includes that the first terminals, first to fourth operational amplifier, the 17th to the 18th operational amplifier, the 15th to the 29th resistance, the 109th to the 110th resistance, the 3rd to the 7th electric capacity, the 321st to the 322nd electric capacity, the second diode group, the 3rd diode, the 46th diode group, the 5th test lead and se current terminal, sense current terminal and current detecting end；
15th resistance one end is connected to the first terminals 3 mouthfuls, and one end is connected to the negative pole of the second diode group, and the positive pole of the second diode group, the 18th resistance, the 19th resistance, the 109th resistance, the 110th resistance, ground wire are sequentially connected in series；22nd resistance, the 24th resistance, the 26th resistance, the 27th resistance, the 17th operational amplifier, the 18th operational amplifier, current detecting end are connected to after being sequentially connected in series on the node between the 19th resistance and the 109th resistance；The positive pole of the 3rd electric capacity is connected to the first terminals 3 mouthfuls, and the negative pole of the 3rd electric capacity is connected to 4 mouthfuls of the first terminals；5th test lead and sense current terminal are attempted by the node between the 19th resistance and the 22nd resistance；23rd resistance one end is connected to the 5th test lead, and one end is connected to described ground wire；16th resistor coupled in parallel is in the both positive and negative polarity of the second diode group；17th resistance one end is connected to the first terminals 3 mouthfuls, and the other end is connected to the node between the 18th resistance and the 19th resistance；The positive pole of the 4th electric capacity is connected to 6 mouthfuls of the second operational amplifier, and the negative pole of the 4th electric capacity is connected to 7 mouthfuls of the second operational amplifier；21st resistance one end is connected to the positive pole of the 5th electric capacity, and the other end is connected to one end of the 22nd resistance, and the negative pole of the 5th electric capacity is connected to the other end of the 22nd resistance；3rd diode cathode is connected to the node between the 24th resistance and the 26th resistance, and the 3rd diode cathode is connected to the node between the 26th resistance and the 27th resistance；After 6th electric capacity and the 7th electric capacity parallel connection, positive pole is connected to the 3rd diode cathode, and negative pole is connected to ground wire；The positive pole of the 321st electric capacity is connected to the first terminals 1 mouthful, and the negative pole of the 321st electric capacity is connected to ground wire；The negative pole of the 322nd electric capacity is connected to 2 mouthfuls of the first terminals, and the positive pole of the 322nd electric capacity is connected to ground wire；2 mouthfuls of first operational amplifier are connected to the second diode group negative pole, and 1 mouthful of the first operational amplifier is connected to the dynode of the second diode group, access ground wire after 3 mouthfuls of concatenation the 28th resistance of the first operational amplifier；6 mouthfuls of nodes being connected between the 18th resistance and the 19th resistance of the second operational amplifier, 7 mouthfuls of the second operational amplifier are connected to sense current terminal, access ground wire after 5 mouthfuls of concatenation the 29th resistance of the second operational amplifier；6 mouthfuls of 3rd operational amplifier are connected to the node between the positive pole of 21 resistance and the 5th electric capacity；7 mouthfuls of 3rd operational amplifier are connected to the 3rd diode cathode；5 mouthfuls of nodes being connected between the 22nd resistance and the negative pole of the 5th electric capacity of the 3rd operational amplifier；2 mouthfuls of four-operational amplifier with 1 mouthful and access se current terminal after connecing；Node between 3 mouthfuls of access the 109th resistance and the 110th resistance of four-operational amplifier；The dynode of the 46th diode group accesses 3 mouthfuls of the first terminals；
Voltage feedback circuit specifically includes that the 31st terminals, the 5th to the 7th voltage signal follower, the first to the 3rd resistance, the 8th to the 14th resistance, the first to the second electric capacity, the first diode.42nd to the 45th diode, the 4th test lead, sense voltage end, se voltage end, striking indication end；
The negative pole of the 42nd diode and the negative pole of the 44th diode also connect, the positive pole of the 43rd diode and the positive pole of the 45th diode also access ground wire after connecing, the positive pole of the 42nd diode is connected to the negative pole of the 43rd diode, the positive pole of the 44th diode is connected to the negative pole of the 45th diode, forms the first bridge rectifier；3 mouthfuls of 31st terminals are connected to the positive pole of the 42nd diode, and 4 mouthfuls of the 31st terminals are connected to the positive pole of the 44th diode；First resistor coupled in parallel is on the negative pole of the 44th diode and the positive pole of the 45th diode；It is connected in parallel on the first resistance two ends after second resistance and the 3rd resistance concatenation；The positive pole of the first electric capacity is connected to the node between the 3rd resistance and the second resistance, and the negative pole of the first electric capacity is connected to ground wire；3 mouthfuls of nodes being connected between the second resistance and the 3rd resistance of the 5th voltage signal follower, 2 mouthfuls of the 5th voltage signal follower and node after being connected to the 4th test lead and sense voltage end after being connected to 1 mouthful and connecing；3 mouthfuls of 6th voltage signal follower are connected to the 4th test lead after concatenating with the tenth resistance, and 2 mouthfuls of the 6th voltage signal follower are connected to the 4th test lead after concatenating with the 9th resistance, and 1 mouthful of the 6th voltage signal follower is connected to striking indication end；The positive pole of the second electric capacity is connected to the node between the 11st resistance and 1 mouthful of the 5th voltage signal follower, and the negative pole of the second electric capacity is connected to ground wire；11st resistance one end is connected to the 4th test lead, and the other end is connected to ground wire；The negative pole of the first diode is connected to 3 mouthfuls of the 6th voltage signal follower, is connected to 1 mouthful of the 6th voltage signal follower after the positive pole of the first diode and the 12nd resistance concatenation；4th test lead, the 13rd resistance, the 14th resistance, ground wire are sequentially connected in series；5 mouthfuls of nodes being connected between the 13rd resistance and the 14th resistance of the 7th voltage signal follower, 6 mouthfuls of the 7th voltage signal follower with 7 mouthfuls of the 7th voltage signal follower access se voltage end after connecing；
Pulse current sample circuit specifically includes that the 4th terminals, the 9th to the tenth voltage signal follower, the 303rd to the 304th resistance, the 213rd to the 214th resistance, the 64th to the 67th electric capacity, the 30th to the 31st diode, the 32nd to the 39th fast recovery diode, the second to the 3rd transformer, output signal end；
32nd to the 35th fast recovery diode forms the second bridge rectifier；3 mouthfuls of 4th terminals are connected to the positive pole of the 34th fast recovery diode, and 4 mouthfuls of the 4th terminals are connected to the positive pole of the 32nd fast recovery diode；After 65th electric capacity and the 303rd resistance and 213 resistor coupled in parallel, the negative pole of this electric capacity is connected to the positive pole of the 33rd fast recovery diode, and the positive pole of this electric capacity is connected to the negative pole of the 32nd fast recovery diode；5 mouthfuls of 9th voltage signal follower are connected to the negative pole of the 32nd fast recovery diode, and 6 mouthfuls of the 9th voltage signal follower are connected to output signal end, and 7 mouthfuls of the 9th voltage signal follower are connected to the positive pole of the 30th diode；The negative pole of the 30th diode is connected to output signal end；
36th to the 39th fast recovery diode composition the 3rd bridge rectifier；1 mouthful of 4th terminals is connected to the positive pole of the 38th fast recovery diode, and 2 mouthfuls of the 4th terminals are connected to the positive pole of the 36th fast recovery diode；After 64th electric capacity and the 304th resistance and 214 resistor coupled in parallel, the negative pole of this electric capacity is connected to the positive pole of the 37th fast recovery diode, and the positive pole of this electric capacity is connected to the negative pole of the 36th fast recovery diode；3 mouthfuls of tenth voltage signal follower are connected to the negative pole of the 36th fast recovery diode, and 2 mouthfuls of the tenth voltage signal follower are connected to output signal end, and 1 mouthful of the tenth voltage signal follower is connected to the positive pole of the 31st diode；The negative pole of the 31st diode is connected to output signal end；8 mouthfuls of tenth voltage signal follower access positive 15V normal voltages and are connected to the positive pole of the 66th electric capacity, and the negative pole of this electric capacity is connected with ground wire；4 mouthfuls of accesses of the tenth voltage signal follower are born 15V normal voltage and are connected to the positive pole of the 67th electric capacity, and the negative pole of this electric capacity is connected with ground wire；It is connected with ground wire after the positive pole of the 35th fast recovery diode and the positive pole parallel connection of the 37th fast recovery diode.
Furthermore, temperature sense circuit specifically includes that the first to the second critesistor, the 8th to the 9th terminals, the 11st to the 13rd operational amplifier, the 294th to the 309th resistance, the 71st to the 76th electric capacity, the 131st electric capacity, the 28th to the 29th diode, the first to the second temperature monitoring end；
First critesistor is serially connected with between 1 mouthful and 2 mouthfuls of the 8th terminals, and the second critesistor is serially connected with between 1 mouthful and 2 mouthfuls of the 9th terminals；The positive pole of the 71st electric capacity is connected to 2 mouthfuls of the 8th terminals, and the negative pole of this electric capacity is connected with ground wire；The positive pole of the 74th electric capacity is connected to 2 mouthfuls of the 9th terminals, and the negative pole of this electric capacity is connected with ground wire；72nd electric capacity is connected to 1 mouthful of the 8th terminals, and the negative pole of this electric capacity is connected with ground wire；The positive pole of the 75th electric capacity is connected to 1 mouthful of the 9th terminals, and the negative pole of this electric capacity is connected with ground wire；294th resistance, the 295th resistance, the 297th resistance are sequentially connected in series rear two ends and all access ground wire；303rd resistance, the 304th resistance, the 305th resistance are sequentially connected in series rear two ends and all access ground wire；296th resistance, the 298th resistance are sequentially connected in series rear two ends and all access ground wire；1 mouthful of node being connected between 294 resistance and 295 resistance of the 8th terminals, 2 mouthfuls of nodes being connected between 295 resistance and 297 resistance of the 8th terminals, 1 mouthful of node being connected between 303 resistance and 304 resistance of the 9th terminals, 2 mouthfuls of nodes being connected between 304 resistance and 305 resistance of the 9th terminals；The positive pole of the 73rd electric capacity is connected to the node between the 298th resistance and the 296th resistance, and the negative pole of the 73rd electric capacity is connected to ground wire；3 mouthfuls of nodes being connected between the 296th resistance and 298 resistance of the 11st operational amplifier, 2 mouthfuls of the 11st operational amplifier are connected to 1 mouthful of this operational amplifier；2 mouthfuls of 8th terminals, the 299th resistance, the 301st resistance, 5 mouthfuls of the 12nd operational amplifier be sequentially connected with；The positive pole of the 131st electric capacity is connected to the node in the middle of the 299th resistance and the 301st resistance, and the negative pole of this electric capacity connects ground wire；300th resistance is serially connected between 1 mouthful and 6 mouthfuls of the 12nd operational amplifier of the 11st operational amplifier；The positive pole of the 28th diode is connected to 7 mouthfuls of the 12nd operational amplifier, and the negative pole of the 28th diode is connected to the first temperature monitoring end；302nd resistance is serially connected between 6 mouthfuls and the negative pole of the 28th diode of the 12nd operational amplifier；2 mouthfuls of 9th terminals, the 307th resistance, the 308th resistance, 10 mouthfuls of the 13rd operational amplifier be sequentially connected in series；The negative pole of the 76th electric capacity is connected to ground wire, and the positive pole of this electric capacity is connected to the node between the 307th resistance and the 308th resistance；306th resistance is serially connected between 1 mouthful and 9 mouthfuls of the 13rd operational amplifier of the 11st operational amplifier；29th diode cathode is connected to 8 mouthfuls of the 13rd operational amplifier, and the negative pole of the 29th diode is connected to the second temperature monitoring end；309th resistance is serially connected with 9 mouthfuls of the 13rd operational amplifier and the negative pole of the 29th diode；
Fan drive circuit specifically includes that photoelectrical coupler, the 11st terminals, the 45th to the 50th resistance, the 37th to the 38th electric capacity, the 62nd electric capacity, the 27th diode, the 202nd diode, the 4th Zener diode, the 3rd field effect transistor, the 4th audion, inductance, signal input part and fan；
Signal input part, the 50th resistance, the 49th resistance, 2 mouthfuls of photoelectrical coupler be sequentially connected in series；3 mouthfuls of nodes being connected between the 50th resistance and the 49th resistance of photoelectrical coupler, 6 mouthfuls of photoelectrical coupler are connected to 7 mouthfuls of this photoelectrical coupler；38th capacitance cathode is connected to 8 mouthfuls of photoelectrical coupler, and the negative pole of the 38th electric capacity is connected to 5 mouthfuls of photoelectrical coupler；44th resistance one end is connected to 7 mouthfuls of photoelectrical coupler, and the other end is connected to the negative pole of the 202nd diode, and the positive pole of the 202nd diode is connected to the control pole of the 3rd field effect transistor；48th resistance is serially connected between 7 mouthfuls of photoelectrical coupler and the control pole of the 3rd field effect transistor；The positive pole of the 4th Zener diode is connected to 5 mouthfuls of photoelectrical coupler, and the negative pole of the 4th Zener diode is connected to the positive pole of the 202nd diode；45th resistance is serially connected with between control pole and the source electrode of the 3rd field effect transistor；The colelctor electrode of the 4th audion is connected to the control pole of the 3rd field effect transistor, and the emitter stage of the 4th audion is connected to 5 mouthfuls of photoelectrical coupler；The base stage of the 4th audion, the 46th resistance, the source electrode of the 3rd field effect transistor are sequentially connected in series；47th resistance is serially connected with between 5 mouthfuls of photoelectrical coupler and the source electrode of the 3rd field effect transistor；The positive pole of the 27th diode is connected to the drain electrode of the 3rd field effect transistor, and the negative pole of the 27th diode is connected to 8 mouthfuls and 1 mouthful of the 11st terminals of photoelectrical coupler；The positive pole of the 62nd electric capacity is connected to 8 mouthfuls of photoelectrical coupler, and the negative pole of the 62nd electric capacity is connected to the emitter stage of the 4th audion；Inductance is serially connected with the 27th diode cathode and 2 mouthfuls of the 11st terminals；37th capacitance cathode is connected to 1 mouthful of the 11st terminals, and the negative pole of 37 electric capacity is connected to 2 mouthfuls of the 11st terminals；Fan is serially connected between 1 mouthful and 2 mouthfuls of the 11st terminals of the 11st terminals.
Furthermore, precision current adjusts circuit and specifically includes that sense current terminal, big current terminal, small area analysis end, error output, tenth four to ten six operational amplifier, 33rd operational amplifier, 70th the five to nine ten one resistance, 113rd resistance, 416th resistance, 506th resistance, 501st the ten to five hundred one ten three resistance, 515th resistance, 630th resistance, second to the 3rd adjustable resistance, 15th to the 19th electric capacity, 8th diode group, 13rd diode group, 12nd diode, 14th diode, 7th to the 8th Zener diode, 27th field effect transistor；
Big current terminal, the 86th resistance, the 87th resistance, the 89th resistance, the 88th resistance, sense current terminal are sequentially connected in series；The negative pole of the 19th electric capacity is connected to the node between the 88th resistance and the 89th resistance；92nd resistance is serially connected between positive pole and the negative pole of the 14th diode of the 19th electric capacity, and the positive pole of the 14th diode is connected to error output；416th resistance is serially connected between big current terminal and ground wire；2 mouthfuls of nodes being connected between the 86th resistance and the 87th resistance of the 33rd operational amplifier, 3 mouthfuls of 33rd operational amplifier are connected to ground wire, 1 mouthful of node being connected between the 87th resistance and the 89th resistance of 33 operational amplifiers；The movable end of the 3rd adjustable resistance and fixing end 1 also access ground wire after connecing, and the fixing end 3 of the 3rd adjustable resistance is connected and is connected to 2 mouthfuls of the 33rd operational amplifier after the 630th resistance；The positive pole of the 13rd diode group and negative pole also access the negative pole of the 19th electric capacity, access ground wire after dynode series connection the 90th resistance of the 13rd diode group；6 mouthfuls of tenth four-operational amplifier are connected to the negative pole of the 19th electric capacity, and 5 mouthfuls of access ground wires of the tenth four-operational amplifier, 7 mouthfuls of the tenth four-operational amplifier are connected to the negative pole of the 14th diode；The positive pole of the 8th Zener diode is connected to the dynode of the 13rd diode group, and the negative pole of the 8th Zener diode is connected to the negative pole of the 14th diode；The negative pole of the 18th electric capacity, the 506th resistance, the negative pole of the 50th diode are sequentially connected in series, and the positive pole of the 50th diode is connected to the positive pole of the 18th electric capacity；The negative pole of the 18th diode is additionally coupled to the negative pole of the 19th electric capacity, and the positive pole of the 18th diode is additionally coupled to the negative pole of the 14th diode；91st resistor coupled in parallel is in the 18th electric capacity two ends；
77th resistance, the 78th resistance, the 79th resistance, the 16th electric capacity negative pole are sequentially connected in series, 16th capacitance cathode, the 82nd resistance, the 12nd diode cathode are sequentially connected in series, and the 12nd diode cathode, the 113rd resistance, error output are sequentially connected in series；510th resistance is connected to the fixing end 3 of the second adjustable resistance；Small area analysis end, the 511st resistance, the fixing end 1 of the second adjustable resistance are sequentially connected in series；5 mouthfuls of 15th operational amplifier are connected to the movable end of the second adjustable resistance, 6 mouthfuls of 15th operational amplifier are connected to 7 mouthfuls of the 15th operational amplifier, are connected to the negative pole of the 16th electric capacity after 7 mouthfuls of the 15th operational amplifier and the 515th resistant series；512nd resistance, 513 resistance, ground wire are sequentially connected in series；513rd resistance is also serially connected between source electrode and the control pole of the 27th field effect transistor of the 27th field effect transistor, and the drain electrode of the 27th field effect transistor is connected to the node between the 77th resistance and the 78th resistance；The negative pole of the 16th electric capacity it is connected to after sense current terminal series connection the 75th resistance；The positive pole of the 8th diode group and the negative pole of the 8th diode group also access the negative pole of the 16th electric capacity after connecing, and access ground wire after dynode series connection the 80th resistance of the 8th diode group；3 mouthfuls of 16th operational amplifier are connected to ground wire, and 2 mouthfuls of the 16th operational amplifier are connected to the negative pole of the 16th electric capacity, and 1 mouthful of the 16th operational amplifier is connected to the positive pole of the 12nd diode；The positive pole of the 7th Zener diode is connected to the dynode of the 8th diode group, and the negative pole of the 7th Zener diode is connected to the positive pole of the 12nd diode；The positive pole of the 15th electric capacity is connected to the positive pole of the 12nd diode, and the negative pole of the 15th electric capacity is connected to the negative pole of the 16th electric capacity.
Further, above-mentioned a kind of control method becoming more meticulous Multifunctional welding welding system mainly comprises the steps that
A. the output voltage/electric current of welding module is sampled by sampling unit, and generation sampled signal is transferred to control module；
B. control module judges welds types according to sampled signal；
C. control module exports corresponding pulse-width modulation control signal according to welds types to power module and small area analysis stable module；
D. power module exports corresponding pulse voltage/electric current according to pulse-width modulation control signal；Small area analysis stable module exports corresponding stabilising arc voltage according to pulse-width modulation control signal.
Further, further comprising the steps of after step d:
E. temperature sense circuit sends the real time temperature signal of power module to control module；
F. control module controls the revolution of fan according to real time temperature signal.
Another step, further comprising the steps of after step e:
G. the real time temperature signal that temperature sense circuit exports is contrasted by fault induction module with setting；
If temperature value is more than or equal to setting in real time temperature signal, then fault induction module sends fault-signal to control module；
If temperature value is less than described setting, then proceed contrast；
The most described control module, according to the described fault-signal of input, stops exporting described pulse-width modulation control signal.
One becomes more meticulous Multifunctional welding welding system, is provided with the welding module for implementing welding；It is arranged on described welding module, for the sampling unit that welding current/voltage is sampled；Electrically connect with sampling unit, use signal output pulse width modulator control signal and the control module that other modules in the Multifunctional welding welding system that becomes more meticulous are controlled for export according to sampling unit；The power module being electrically connected with control module, sampling unit, welding module；The present invention is by being in series with small area analysis stable module between welding module and control module, and the switching frequency of more than 60KHZ is used at power module, make power module of the present invention have the most dynamically and ring speed and higher control accuracy, more preferable compatible multiple welding function；
And then addition small area analysis thermal module can ensure that the stability of electric arc in small area analysis welding, it is to avoid cause current interruption because of power module exporting unstable.And the control method of correspondence a kind of Multifunctional welding welding system that becomes more meticulous of the present invention has above-mentioned advantage too.
Accompanying drawing explanation
For ease of explanation, the present invention is described in detail by following detailed description of the invention and accompanying drawing.
Fig. 1 is the composition structural representation of a kind of Multifunctional welding welding system that becomes more meticulous of the present invention；
Fig. 2 is the improved structure schematic diagram of a kind of Multifunctional welding welding system that becomes more meticulous of the present invention；
Fig. 3 is the complete lattice schematic diagram of a kind of Multifunctional welding welding system that becomes more meticulous of the present invention；
Fig. 4 is the current feedback circuit structure chart of a kind of Multifunctional welding welding system that becomes more meticulous of the present invention；
Fig. 5 is the voltage feedback circuit structure chart of a kind of Multifunctional welding welding system that becomes more meticulous of the present invention；
Fig. 6 is the pulse current sampling unit structure chart of a kind of Multifunctional welding welding system that becomes more meticulous of the present invention；
Fig. 7 is the temperature sense circuit structure diagram of a kind of Multifunctional welding welding system that becomes more meticulous of the present invention；
Fig. 8 is the fan drive circuit structure chart of a kind of Multifunctional welding welding system that becomes more meticulous of the present invention；
Fig. 9 is that the precision current of a kind of Multifunctional welding welding system that becomes more meticulous of the present invention adjusts circuit structure diagram；
Figure 10 is the control method basic procedure schematic diagram of a kind of Multifunctional welding welding system that becomes more meticulous of the present invention；
Figure 11 is the control method modified flow schematic diagram of a kind of Multifunctional welding welding system that becomes more meticulous of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.
As illustrated in the accompanying drawings from 1 to 3, one becomes more meticulous Multifunctional welding welding system, is provided with the welding module for implementing welding；It is arranged on welding module, for the sampling unit that welding current/voltage is sampled；It is electrically connected with sampling unit, welding module, for providing the power module of power supply for this Multifunctional welding welding system that becomes more meticulous；It is additionally provided with and electrically connects with sampling unit, power module, be used for storing all kinds of weld signature parameter, and the control module other modules in the Multifunctional welding welding system that becomes more meticulous being controlled according to this feature parameter；This control module can use the systems such as x86 microcomputer of the prior art or single-chip microcomputer, and the mode of real-time update arranges the characteristic parameter of various welds types in using factory to write in advance and use, by many group contact jaws, modules, circuit in the present invention are controlled, reach to judge welds types according to this feature parameter, and keep voltage that electric power source pair of module welding module exports and electric current to meet the outer characteristic curve of corresponding welds types.Memorizer in control module can use read only memory or scratch pad memory or both combinations.
Control module mainly includes for output pulse width modulator control signal and the main control circuit that is controlled other modules in this system according to characteristic parameter and is connected with this main control circuit, the human-computer interactive control circuit regulated for model selection and parameter；Small area analysis stable module also it is in series with between control module and welding module；Small area analysis stable module mainly includes being sequentially connected in series: DC source, current-limiting resistance and control switch.
Further, the temperature sense circuit being connected between control module and power module it is additionally provided with；For monitoring the operating temperature of high-power components in power module, make control module according to the return information of temperature sense circuit, power module can be lowered the temperature or shutdown operation.
Being additionally provided with the fan drive circuit being connected respectively with control module and fan, the hotness signal that control module inputs according to temperature sense circuit controls the revolution that fan drive circuit promotes or reduces fan；The work of fan can be stopped when welding system enters energy saver mode or park mode.
It is additionally provided with the fault induction module being connected respectively with temperature sense circuit, control module, when temperature sense circuit detecting to temperature exceed setting time, fault induction module sends fault-signal to control module, control module stops output pulse width modulator control signal, and power module stops powering welding module.
Further, power module mainly includes switch and filter circuit, rectifier bridge, mu balanced circuit, insulated gate bipolar translator power tube inverse changing driving circuit (IGBT inversion driving), main transformer, output rectification circuit, output reactance device, secondary insulating grid bipolar-type power pipe inverse changing driving circuit (secondary IGBT inversion driving), the Hall element circuit being sequentially connected in series setting；Mu balanced circuit input has also been arranged in parallel auxiliary power circuit and primary side voltage sensor；The first critesistor it is additionally provided with on insulated gate bipolar translator power tube inverse changing driving circuit；Output rectification circuit is provided with the second critesistor；
Temperature sense circuit, one end is connected with first, second critesistor respectively, and one end is connected to main control circuit after fault induction module and connects；
Welding module is additionally provided with: the high-frequency arc strike control circuit that is connected between main control circuit and power module, anti-electric hit manual welding selection circuit, non-melt pole gas shield welding carries arc selection circuit；
Sampling unit is provided with pulse current sample circuit, current feedback circuit and the voltage feedback circuit being connected between control module and power module；For providing the initial voltage/electric current collected to carry out and the comparison of individual features parameter to control module, to determine welds types；And current/voltage during monitoring welding in real time, make control module control power module output and meet corresponding outer characteristic curve.Pulse current sample circuit one end is connected with main control circuit, and one end is connected to the node between main transformer and output rectification circuit；For monitoring pulse current size in electric power main circuit, secondary control module carries out overcurrent protection to power module.
Current feedback circuit one end is connected with main control circuit, and one end is connected to Hall element circuit；The current intensity of power supply output when monitoring welding in real time, and feed back to control module.
Voltage feedback circuit one end is connected with main control circuit, and one end is connected to the node between Hall element circuit and the positive pole of welding module；The voltage amplitude of power supply output when monitoring welding in real time, and feed back to control module.
High-frequency arc strike control circuit is additionally provided with striking coil, and striking coil one end is connected with output rectification circuit, and one end is connected with the negative pole of welding module；Under the control in high-frequency arc strike control circuit, excite electric arc for welding module.
Anti-electric manual welding selection circuit one end of hitting is connected with main control circuit, and one end is connected to the node between output rectification circuit and striking coil；For coordinating main control circuit to open manual welding pattern, and prevent electric leakage from producing, it is ensured that the safety of operator during welding operation.
Non-melt pole gas shield welding carries arc selection circuit one end and is connected with main control circuit, and one end is connected to the node between output rectification circuit and striking coil；For coordinating main control circuit to open non-consumable gas shielded arc welding pattern, and control arc stiffness under this pattern.
Fault induction module is additionally provided with the main circuit sensor being connected to node between insulated gate bipolar translator power tube inverse changing driving circuit and main transformer；For monitoring the electric current in insulated gate bipolar translator power tube inverse changing driving circuit input main transformer and voltage condition, when crossing stream or overvoltage, feed back to main control circuit.
Human-computer interactive control circuit is provided with and is respectively connecting to the precision current adjustment circuit of main control circuit, with reference to regulation and mode selection switch；For realizing the manually selecting and for the welding characteristic curve that meets under AD HOC, the electric current of manual fine-tuning welding machine output and voltage of bond pattern.
Main control circuit is connected with electromagnetic valve also by air valve control circuit, for controlling the release of protective gas；
Main control circuit is connected with secondary insulating grid bipolar-type power pipe inverse changing driving circuit also by drive circuit；Drive circuit one end is connected to rectifier bridge and the node in mu balanced circuit；Fault induction module one end access in parallel with main control circuit drive circuit.For driving secondary insulating grid bipolar-type power pipe inverse changing driving circuit that the current/voltage of output to welding module is adjusted.
Further, power module uses the switching frequency of more than 60KHZ；Power module according to pulse-width modulation control signal to welding module voltage pulse output and pulse current.
Physical circuit preferred circuits below structure:
As shown in Figure 4, current feedback circuit is made up of partial circuit in Hall element HCT1 and MCU1 main control circuit.Hall element HCT1 is transformed into voltage signal in the ratio of 100A/2V current signal and is delivered in MCU1 by operational amplifier IC1, IC2, IC3, IC4 and the output current signal I_SENSE/I_SE such as resistance R15-R29, R109, R110, electric capacity C3-C7, C321, C322, diode D46, D2, D3.
Improve as one, current feedback circuit specifically includes that the first terminals CN1, first to fourth operational amplifier IC1-IC4, 17th to the 18th operational amplifier IC17-IC18, 15th to the 29th resistance R15-R29, 109th to the 110th resistance R109-R110, 3rd to the 7th electric capacity C3-C7, 321st to the 322nd electric capacity C321-C322, second to the 3rd diode D2-D3, 46th diode group D46, 5th test lead TP5 and se current terminal I-SE, sense current terminal I-SENSE and current detecting end I-DET；
15th resistance R15 one end is connected to the first terminals CN13 mouth, the other end is connected to the negative pole of the second diode group D2, and the positive pole of the second diode group D2, the 18th resistance R18, the 19th resistance R19, the 109th resistance R109, the 110th resistance R110, ground wire are sequentially connected in series；22nd resistance R22, the 24th resistance R24, the 26th resistance R26, the 27th resistance R27, the 17th operational amplifier IC17, the 18th operational amplifier IC18, current detecting end I-DET are connected on the node between the 19th resistance R19 and the 109th resistance R109 after being sequentially connected in series；The positive pole of the 3rd electric capacity C3 is connected to the first terminals CN13 mouth, and the negative pole of the 3rd electric capacity C3 is connected to 4 mouthfuls of the first terminals CN1；5th test lead TP5 and sense current terminal I-SENSE is attempted by the node between the 19th resistance R19 and the 22nd resistance R22；23rd resistance R23 one end is connected to the 5th test lead TP5, and one end is connected to described ground wire；16th resistance R16 is parallel to the both positive and negative polarity of the second diode group D2；17th resistance R17 one end is connected to the first terminals CN13 mouth, and the other end is connected to the node between the 18th resistance R18 and the 19th resistance R19；The positive pole of the 4th electric capacity C4 is connected to 6 mouthfuls of the second operational amplifier IC2, and the negative pole of the 4th electric capacity C4 is connected to 7 mouthfuls of the second operational amplifier IC2；21st resistance R21 one end is connected to the positive pole of the 5th electric capacity C5, and the other end is connected to one end of the 22nd resistance R22, and the negative pole of the 5th electric capacity C5 is connected to the other end of the 22nd resistance R22；3rd diode D3 positive pole is connected to the node between the 24th resistance R24 and the 26th resistance R26, and the 3rd diode D3 negative pole is connected to the node between the 26th resistance R26 and the 27th resistance R27；After 6th electric capacity C6 and the 7th electric capacity C7 parallel connection, common positive pole is connected to the negative pole of the 3rd diode D3, and common negative pole is connected to ground wire；The positive pole of the 321st electric capacity C321 is connected to 1 mouthful of the first terminals CN1, and the negative pole of the 321st electric capacity C321 is connected to ground wire；The negative pole of the 322nd electric capacity C322 is connected to 2 mouthfuls of the first terminals CN1, and the positive pole of the 322nd electric capacity C322 is connected to ground wire；2 mouthfuls of first operational amplifier IC1 are connected to the second diode group D2 negative pole, and 1 mouthful of the first operational amplifier IC1 is connected to the dynode of the second diode group D2, access ground wire after 3 mouthfuls of concatenation the 28th resistance R28 of the first operational amplifier IC1；6 mouthfuls of nodes being connected between the 18th resistance R18 and the 19th resistance R19 of the second operational amplifier IC2,7 mouthfuls of second operational amplifier IC2 access ground wire after being connected to 5 mouthfuls of sense current terminal I-SENSE, the second operational amplifier IC2 concatenation the 29th resistance R29；6 mouthfuls of 3rd operational amplifier IC3 are connected to the node between 21 resistance R21 and the positive pole of the 5th electric capacity C5；7 mouthfuls of 3rd operational amplifier IC3 are connected to the positive pole of the 3rd diode D3；5 mouthfuls of nodes being connected between the 22nd resistance R22 and the negative pole of the 5th electric capacity C5 of the 3rd operational amplifier IC3；2 mouthfuls of four-operational amplifier IC4 with 1 mouthful of this operational amplifier access se current terminal I-SE after connecing；Node between 3 mouthfuls of access the 109th resistance R109 and the 110th resistance R110 of four-operational amplifier IC4；The dynode of the 46th diode group D46 accesses 3 mouthfuls of the first terminals CN1；
As shown in Figure 5, voltage feedback circuit is made up of partial circuit in MCU1 main control circuit.Voltage signal presses the blood pressure lowering of 10V/2V through transformator, it is transformed into direct current signal after bridge rectifier diode D42-D45, after voltage signal follower IC5, IC7, two groups of signals of V_SENSE/V_SE are delivered in MCU1, through voltage signal follower IC6, ARC-ON starting the arc indication signal is delivered in MCU1.
Concrete, voltage feedback circuit specifically includes that the 31st terminals CN31, the 5th to the 7th voltage signal follower IC5-IC7, the first to the 3rd resistance R1-R3, the 8th to the 14th resistance R8-R14, the first to the second electric capacity C1-C2, the first diode D1, the 42nd to the 45th diode, the 4th test lead TP4, sense voltage end V-SENSE, se voltage end V-SE, striking indication end ARC-ON；
The negative pole of the 42nd diode D42 and the negative pole of the 44th diode D44 also connect, the positive pole of the 43rd diode D43 and the positive pole of the 45th diode D45 also access ground wire after connecing, the positive pole of the 42nd diode D42 is connected to the negative pole of the 43rd diode D43, the positive pole of the 44th diode D44 is connected to the negative pole of the 45th diode D45, forms the first bridge rectifier；3 mouthfuls of 31st terminals CN31 are connected to the positive pole of the 42nd diode D42, and 4 mouthfuls of the 31st terminals CN31 are connected to the positive pole of the 44th diode D44；First resistance R1 is connected in parallel on the negative pole of the 44th diode D44 and the positive pole of the 45th diode D45；It is connected in parallel on the first resistance R1 two ends after second resistance R2 and the 3rd resistance R3 concatenation；The positive pole of the first electric capacity C1 is connected to the node between the 3rd resistance R3 and the second resistance R2, and the negative pole of the first electric capacity C1 is connected to ground wire；3 mouthfuls of nodes being connected between the second resistance R2 and the 3rd resistance R3 of the 5th voltage signal follower IC5,2 mouthfuls of the 5th voltage signal follower IC5 and node after being connected to the 4th test lead TP4 and sense voltage end V-SENSE and connect after being connected to 1 mouthful；3 mouthfuls of 6th voltage signal follower IC6 are connected to the 4th test lead TP4 after concatenating with the tenth resistance R10,2 mouthfuls of 6th voltage signal follower IC6 are connected to the 4th test lead TP4 after concatenating with the 9th resistance R9, and 1 mouthful of the 6th voltage signal follower IC6 is connected to striking indication end ARC-ON；The positive pole of the second electric capacity C2 is connected to the node between the 11st resistance and 1 mouthful of the 5th voltage signal follower IC5, and the negative pole of the second electric capacity C2 is connected to ground wire；11st resistance R11 one end is connected to the 4th test lead TP4, and the other end is connected to ground wire；The negative pole of the first diode D1 is connected to 1 mouthful of the 6th voltage signal follower IC6 after being connected to 3 mouthfuls of the 6th voltage signal follower IC6, the positive pole of the first diode D1 and the 12nd resistance R12 concatenation；4th test lead TP4, the 13rd resistance R13, the 14th resistance R14, ground wire are sequentially connected in series；5 mouthfuls of nodes being connected between the 13rd resistance R13 and the 14th resistance R14 of the 7th voltage signal follower IC7,6 mouthfuls of the 7th voltage signal follower IC7 with 7 mouthfuls of the 7th voltage signal follower IC7 access se voltage end V-SE after connecing；
As shown in Figure 6, pulse current sampling unit is by transformer CT2, CT3, fast recovery diode D32-D39, resistance R214, R213, R304, R303, electric capacity C64, C65 and voltage signal follower IC9, IC10, diode D30, D31 composition, output signal CT is sent in MCU1.
Concrete, pulse current sample circuit specifically includes that the 4th terminals CN4, the 9th to the tenth voltage signal follower IC9-IC10, the 303rd to the 304th resistance R303-R304, the 213rd to the 214th resistance R213-R214, the 64th to the 67th electric capacity C264-C267, the 30th to the 31st diode D30-D31, the 32nd to the 39th fast recovery diode D32-D39, the second to the 3rd transformer CT2-CT3, output signal end CT；
32nd to the 35th fast recovery diode forms the second bridge rectifier；3 mouthfuls of 4th terminals CN4 are connected to the positive pole of the 34th fast recovery diode D34, and 4 mouthfuls of the 4th terminals CN4 are connected to the positive pole of the 32nd fast recovery diode D32；After 65th electric capacity C65 and the 303rd resistance R303 and 213 resistance R213 parallel connections, the negative pole of this electric capacity is connected to the positive pole of the 33rd fast recovery diode D33, and the positive pole of this electric capacity is connected to the negative pole of the 32nd fast recovery diode D32；5 mouthfuls of 9th voltage signal follower IC9 are connected to the negative pole of the 32nd fast recovery diode D32,6 mouthfuls of 9th voltage signal follower IC9 are connected to output signal end CT, and 7 mouthfuls of the 9th voltage signal follower IC9 are connected to the positive pole of the 30th diode D30；The negative pole of the 30th diode D30 is connected to output signal end CT；
36th to the 39th fast recovery diode composition the 3rd bridge rectifier；1 mouthful of 4th terminals CN4 is connected to the positive pole of the 38th fast recovery diode D38, and 2 mouthfuls of the 4th terminals CN4 are connected to the positive pole of the 36th fast recovery diode D36；After 64th electric capacity C64 and the 304th resistance R304 and 214 resistance R214 parallel connections, the negative pole of this electric capacity is connected to the positive pole of the 37th fast recovery diode D37, and the positive pole of this electric capacity is connected to the negative pole of the 36th fast recovery diode D36；3 mouthfuls of tenth voltage signal follower IC10 are connected to the negative pole of the 36th fast recovery diode D36,2 mouthfuls of tenth voltage signal follower IC10 are connected to output signal end CT, and 1 mouthful of the tenth voltage signal follower IC10 is connected to the positive pole of the 31st diode D31；The negative pole of the 31st diode D31 is connected to output signal end CT；8 mouthfuls of tenth voltage signal follower IC10 access positive 15V normal voltages and are connected to the positive pole of the 66th electric capacity C66, and the negative pole of this electric capacity is connected with ground wire；4 mouthfuls of accesses of the tenth voltage signal follower IC10 are born 15V normal voltage and are connected to the positive pole of the 67th electric capacity C67, and the negative pole of this electric capacity is connected with ground wire；It is connected with ground wire after the positive pole of the 35th fast recovery diode D35 and the positive pole parallel connection of the 37th fast recovery diode D37.
As shown in Figure 7, temperature sense circuit, it is made up of critesistor TH1 and TH2, operational amplifier IC11, IC12, IC13 resistance R294-R309, electric capacity C71-C76 and C131, diode D28, D29 etc.；
Concrete, temperature sense circuit specifically includes that the first to the second critesistor TH1-TH2, the 8th to the 9th terminals CN8-CN9, the 11st to the 13rd operational amplifier IC11-IC13, the 294th to the 309th resistance, the 71st to the 76th electric capacity R71-R76, the 131st electric capacity R131, the 28th to the 29th diode D28-D29, the first to the second temperature monitoring end TEMP1-TEMP2；
First critesistor TH1 is serially connected with between 1 mouthful and 2 mouthfuls of the 8th terminals CN8, and the second critesistor TH2 is serially connected with between 1 mouthful and 2 mouthfuls of the 9th terminals CN9；The positive pole of the 71st electric capacity C71 is connected to 2 mouthfuls of the 8th terminals CN8, and the negative pole of this electric capacity is connected with ground wire；The positive pole of the 74th electric capacity C74 is connected to 2 mouthfuls of the 9th terminals CN9, and the negative pole of this electric capacity is connected with ground wire；72nd electric capacity C72 is connected to 1 mouthful of the 8th terminals CN8, and the negative pole of this electric capacity is connected with ground wire；The positive pole of the 75th electric capacity C75 is connected to 1 mouthful of the 9th terminals CN9, and the negative pole of this electric capacity is connected with ground wire；294th resistance R294, the 295th resistance R295, the 297th resistance R297 are sequentially connected in series rear two ends and all access ground wire；303rd resistance R303, the 304th resistance R304, the 305th resistance R305 are sequentially connected in series rear two ends and all access ground wire；296th resistance R296, the 298th resistance R298 are sequentially connected in series rear two ends and all access ground wire；1 mouthful of 8th terminals CN8 is connected to the node between 294 resistance R294 and 295 resistance R295,2 mouthfuls of 8th terminals CN8 are connected to the node between 295 resistance R295 and 297 resistance R297,1 mouthful of 9th terminals CN9 is connected to the node between 303 resistance R303 and 304 resistance R304, and 2 mouthfuls of the 9th terminals CN9 are connected to the node between 304 resistance R304 and 305 resistance R305；The positive pole of the 73rd electric capacity C73 is connected to the node between the 298th resistance R298 and the 296th resistance R296, and the negative pole of the 73rd electric capacity C73 is connected to ground wire；3 mouthfuls of nodes being connected between the 296th resistance R296 and 298 resistance R298 of the 11st operational amplifier IC11,2 mouthfuls of the 11st operational amplifier IC11 are connected to 1 mouthful of this operational amplifier；2 mouthfuls of 8th terminals CN8, the 299th resistance R299, the 301st resistance R301,5 mouthfuls of the 12nd operational amplifier IC12 be sequentially connected with；The positive pole of the 131st electric capacity R131 is connected to the node in the middle of the 299th resistance R299 and the 301st resistance R301, and the negative pole of this electric capacity connects ground wire；300th resistance R300 is serially connected between 1 mouthful and 6 mouthfuls of the 12nd operational amplifier IC12 of the 11st operational amplifier IC11；The positive pole of the 28th diode D28 is connected to 7 mouthfuls of the 12nd operational amplifier IC12, and the negative pole of the 28th diode D28 is connected to the first temperature monitoring end TEMP1；302nd resistance is serially connected between 6 mouthfuls and the negative pole of the 28th diode of the 12nd operational amplifier IC12；2 mouthfuls of 9th terminals CN9, the 307th resistance, the 308th resistance, 10 mouthfuls of the 13rd operational amplifier IC13 be sequentially connected in series；The negative pole of the 76th electric capacity C76 is connected to ground wire, and the positive pole of this electric capacity is connected to the node between the 307th resistance R307 and the 308th resistance R308；306th resistance R306 is serially connected between 1 mouthful and 9 mouthfuls of the 13rd operational amplifier IC13 of the 11st operational amplifier IC11；29th diode D29 positive pole is connected to 8 mouthfuls of the 13rd operational amplifier IC13, and the negative pole of the 29th diode D29 is connected to the second temperature monitoring end TEMP2；309th resistance R309 is serially connected with 9 mouthfuls of the 13rd operational amplifier IC13 and the negative pole of the 29th diode D29；
As shown in Figure 8, the welding supply of plasma cutting inverter is because being responsible for the inversion conversion process of whole welding energy, so the power switching device in its power supply is thermal losses source maximum in device, the highest temperature rise is had, it is desirable to have certain cooling facility is its radiating and cooling during power switching device work.
The present invention is that the fan FAN drive circuit of the band sleep mode used is as cooling system, this fan drive circuit: photoelectrical coupler PHC3, audion Q3, Q4, resistance R45-R50, electric capacity C37, C38, C62, diode D27, D202, ZD4, audion Q3, Q4, inductance L1 and the axial flow blower FAN etc. that are connected by MCU1 circuit form.
Its operation principle is: radiator temperature amount is transformed into voltage signal amount by temperature sensor TH1, TH2 on insulated gate power switching device group radiator of being placed in power module, deliver to the ADC port of digital processing system MCU1, after being processed by MCU1, output control signal goes to drive photoelectrical coupler PHC3, goes to control axial flow blower FAN.When radiator temperature is relatively low need not carry out forced air cooling time, MCU1 will allow axial flow blower FAN stall. when radiator temperature reaches certain value, MCU1 will send instruction, allow axial flow blower FAN rotate, to heat abstractor forced air cooling.On the one hand saves energy, improve efficiency, on the other hand the most also can extending shaft flow fan service life.
Concrete, fan drive circuit specifically includes that photoelectrical coupler PHC3, the 11st terminals CN11, the 45th to the 50th resistance R45-R50, the 37th to the 38th electric capacity C37-C38, the 62nd electric capacity C62, the 27th diode D27, the 202nd diode D202, the 4th Zener diode ZD4, the 3rd field effect transistor Q3, the 4th audion Q4, inductance L1, signal input part FAN-OUT and fan FAN；
Signal input part FAN-OUT, the 50th resistance R59, the 49th resistance R49,2 mouthfuls of photoelectrical coupler PHC3 be sequentially connected in series；3 mouthfuls of nodes being connected between the 50th resistance R59 and the 49th resistance R49 of photoelectrical coupler PHC3,6 mouthfuls of photoelectrical coupler PHC3 are connected to 7 mouthfuls of this photoelectrical coupler PHC3；38th electric capacity C38 positive pole is connected to 8 mouthfuls of photoelectrical coupler PHC3, and the negative pole of the 38th electric capacity C38 is connected to 5 mouthfuls of photoelectrical coupler PHC3；44th resistance R44 one end is connected to 7 mouthfuls of photoelectrical coupler PHC3, and the other end is connected to the negative pole of the 202nd diode D202, and the positive pole of the 202nd diode D202 is connected to the control pole of the 3rd field effect transistor Q3；48th resistance R48 is serially connected between 7 mouthfuls of photoelectrical coupler PHC3 and the control pole of the 3rd field effect transistor Q3；The positive pole of the 4th Zener diode ZD4 is connected to 5 mouthfuls of photoelectrical coupler PHC3, and the negative pole of the 4th Zener diode ZD4 is connected to the positive pole of the 202nd diode D202；45th resistance R45 is serially connected with between control pole and the source electrode of the 3rd field effect transistor Q3；The colelctor electrode of the 4th audion Q4 is connected to the control pole of the 3rd field effect transistor Q3, and the emitter stage of the 4th audion Q4 is connected to 5 mouthfuls of photoelectrical coupler PHC3；The base stage of the 4th audion Q4, the 46th resistance R46, the source electrode of the 3rd field effect transistor Q3 are sequentially connected in series；47th resistance R47 is serially connected with between 5 mouthfuls of photoelectrical coupler PHC3 and the source electrode of the 3rd field effect transistor Q3；The positive pole of the 27th diode D27 is connected to the drain electrode of the 3rd field effect transistor Q3, and the negative pole of the 27th diode D27 is connected to 8 mouthfuls and 1 mouthful of the 11st terminals CN11 of photoelectrical coupler PHC3；The positive pole of the 62nd electric capacity C62 is connected to 8 mouthfuls of photoelectrical coupler PHC3, and the negative pole of the 62nd electric capacity C62 is connected to the emitter stage of the 4th audion Q4；Inductance L1 is serially connected with the 27th diode D27 positive pole and 2 mouthfuls of the 11st terminals CN11；37th electric capacity C37 positive pole is connected to 1 mouthful of the 11st terminals CN11, and the negative pole of 37 electric capacity C37 is connected to 2 mouthfuls of the 11st terminals CN11；Fan FAN is serially connected between 1 mouthful and 2 mouthfuls of the 11st terminals CN11 of the 11st terminals CN11.
As shown in Figure 9, precision current adjustment circuit is overlapped adjustment circuit output to+ERROR end by big electric current LIMIT and small area analysis MINI two.Circuit includes: IC 33, IC14-IC16, resistance R75-R91, R113, R416, R506, R510-R513, R515, R630, adjustable resistance VR2, VR3, electric capacity C15-19, diode D8, D12-14, ZD7, ZD8.
By regulation VR3, obtain satisfactory signal amplitude to be added to LIMIT signal, it is input to the inverting input of operational amplifier IC33 together, the voltage signal and the current feedback signal I-SENSE that obtain gain are superimposed and are input to the inverting input of operational amplifier IC14, the amplification voltage signal of gain filters out positive signal through diode D14, and negative signal exports+ERROR end.Same reason MINI signal, through overregulating VR2, is input to operational amplifier IC15, IC16, and the amplification voltage signal obtaining gain filters out negative signal through diode D12, and positive signal is exported+ERROR end.
nullConcrete，Precision current adjusts circuit and specifically includes that sense current terminal I-SENSE、Big current terminal LIMIT、Small area analysis end MINI、Error output+ERROR、Tenth four to ten six operational amplifier IC14-IC16、33rd operational amplifier IC33、70th the five to nine ten one resistance R75-R91、113rd resistance R113、416th resistance R416、506th resistance R506、501st the ten to five hundred one ten three resistance R510-R513、515th resistance R515、630th resistance R630、Second to the 3rd adjustable resistance VR2-VR3、15th to the 19th electric capacity R15-R19、8th diode group D8、13rd diode group D13、12nd diode D12、14th diode D14、7th to the 8th Zener diode ZD7-ZD8、27th field effect transistor Q27；
Big current terminal LIMIT, the 86th resistance R86, the 87th resistance R87, the 89th resistance R89, the 88th resistance R88, sense current terminal I-SENSE are sequentially connected in series；The negative pole of the 19th electric capacity C19 is connected to the node between the 88th resistance R88 and the 89th resistance R89；92nd resistance R92 is serially connected between positive pole and the negative pole of the 14th diode D14 of the 19th electric capacity C19, and the positive pole of the 14th diode D14 is connected to error output+ERROR；416th resistance R416 is serially connected between big current terminal LIMIT and ground wire；2 mouthfuls of nodes being connected between the 86th resistance R86 and the 87th resistance R87 of the 33rd operational amplifier IC33,3 mouthfuls of 33rd operational amplifier IC33 are connected to ground wire, 1 mouthful of node being connected between the 87th resistance R87 and the 89th resistance R89 of the 33rd operational amplifier IC33；The movable end of the 3rd adjustable resistance VR3 and fixing end 1 also access ground wire after connecing, and the fixing end 3 of the 3rd adjustable resistance VR3 is connected and is connected to 2 mouthfuls of the 33rd operational amplifier IC33 after the 630th resistance R630；The positive pole of the 13rd diode group D13 and negative pole also access the negative pole of the 19th electric capacity C19, access ground wire after dynode series connection the 90th resistance R90 of the 13rd diode group D13；6 mouthfuls of tenth four-operational amplifier IC14 are connected to the negative pole of the 19th electric capacity C19, and 5 mouthfuls of access ground wires of the tenth four-operational amplifier IC14,7 mouthfuls of the tenth four-operational amplifier IC14 are connected to the negative pole of the 14th diode D14；The positive pole of the 8th Zener diode ZD8 is connected to the dynode of the 13rd diode group D13, and the negative pole of the 8th Zener diode ZD8 is connected to the negative pole of the 14th diode D14；The negative pole of the 18th electric capacity C18, the 506th resistance R506, the negative pole of the 50th diode D50 are sequentially connected in series, and the positive pole of the 50th diode D50 is connected to the positive pole of the 18th electric capacity C18；The negative pole of the 18th diode C18 is additionally coupled to the negative pole of the 19th electric capacity C19, and the positive pole of the 18th diode C18 is additionally coupled to the negative pole of the 14th diode D14；91st resistance R91 is parallel to the 18th electric capacity C18 two ends；
77th resistance R77, the 78th resistance R78, the 79th resistance R79, the 16th electric capacity C16 negative pole are sequentially connected in series, 16th electric capacity C16 positive pole, the 82nd resistance R82, the 12nd diode D12 positive pole are sequentially connected in series, and the 12nd diode D12 negative pole, the 113rd resistance R113, error output+ERROR are sequentially connected in series；510th resistance R510 is connected to the fixing end 3 of the second adjustable resistance VR2；Small area analysis end MINI, the 511st resistance R511, the fixing end 1 of the second adjustable resistance VR2 are sequentially connected in series；5 mouthfuls of 15th operational amplifier IC15 are connected to the movable end of the second adjustable resistance VR2,6 mouthfuls of 15th operational amplifier IC15 are connected to 7 mouthfuls of the 15th operational amplifier IC15, and 7 mouthfuls of the 15th operational amplifier IC15 are connected to the negative pole of the 16th electric capacity C16 with the 515th resistance R515 after connecting；512nd resistance R512,513 resistance R513, ground wire are sequentially connected in series；513rd resistance R513 is also serially connected between source electrode and the control pole of the 27th field effect transistor Q27 of the 27th field effect transistor Q27, and the drain electrode of the 27th field effect transistor Q27 is connected to the node between the 77th resistance R77 and the 78th resistance R78；The negative pole of the 16th electric capacity C16 it is connected to after sense current terminal I-SENSE series connection the 75th resistance；The positive pole of the 8th diode group D8 and the negative pole of the 8th diode group D8 also access the negative pole of the 16th electric capacity C16 after connecing, and access ground wire after dynode series connection the 80th resistance R80 of the 8th diode group D8；3 mouthfuls of 16th operational amplifier IC16 are connected to ground wire, and 2 mouthfuls of the 16th operational amplifier IC16 are connected to the negative pole of the 16th electric capacity C16, and 1 mouthful of the 16th operational amplifier IC16 is connected to the positive pole of the 12nd diode D12；The positive pole of the 7th Zener diode ZD7 is connected to the dynode of the 8th diode group D8, and the negative pole of the 7th Zener diode ZD7 is connected to the positive pole of the 12nd diode D12；The positive pole of the 15th electric capacity C15 is connected to the positive pole of the 12nd diode D12, and the negative pole of the 15th electric capacity C15 is connected to the negative pole of the 16th electric capacity C16.
As shown in accompanying drawing 10-11, the control method of above-mentioned a kind of multi-functional welding system compatible multiple welding function that becomes more meticulous, mainly comprise the steps that
A. the output voltage/electric current of welding module is sampled by sampling unit, and generation sampled signal is transferred to control module；
B. control module judges welds types according to sampled signal；
C. control module exports corresponding pulse-width modulation control signal according to welds types to power module and small area analysis stable module；
D. power module exports corresponding pulse voltage/electric current according to pulse-width modulation control signal；Small area analysis stable module exports corresponding stabilising arc voltage according to pulse-width modulation control signal.
Further, further comprising the steps of after step d:
E. temperature sense circuit sends the real time temperature signal of power module to control module；
F. control module controls the revolution of fan (FAN) according to real time temperature signal.
Another step, further comprising the steps of after step e:
G. the real time temperature signal that temperature sense circuit exports is contrasted by fault induction module with setting；
If temperature value is more than or equal to setting in real time temperature signal, then fault induction module sends fault-signal to control module；
If temperature value is less than described setting, then proceed contrast.
The most described control module, according to the described fault-signal of input, stops exporting described pulse-width modulation control signal.
The present invention controls power module by control module output pulse width modulated signal and exports corresponding weldingvoltage electric current; and match with small area analysis thermal module, it is possible to realize: manual welding general acidic welding rod welding function, low hydrogen type basic electrode/Cellulose-Congo red medium welding function), argon arc welding function HF TIG, LIFT TIG), pulsed argon arc welding function, alternating current-direct current argon arc welding function, argon arc spot welding function, carbon dioxide gas arc welding connection function, the pulsed MIG welding welding function such as function and synergic-pulsed MIG welding connection function.To meet the requirement of become more meticulous welding and multi-functional welding technique.
In addition to manual welding function belongs to start startup automatically, other welding function all can be controlled start and stop by arc welding gun switch.Circuit can also be adjusted by precision current and carry out manual fine-tuning, adapt to field requirement during welding.
One of the present invention becomes more meticulous Multifunctional welding welding system (digitized interlock the BUCK multi-functional inverter type welder of formula pulsewidth modulation, the multi-functional inverter argon arc welding machine of digitalization high frequency), makes it be controlled according to welding functional requirement by the digital processing system of programme-control main control circuit MCU1.The digital processing system of MCU1 first to welding supply output electric current and voltage sample, then calculation process is made, output pulse width modulation circuit signal goes to control insulated gate power switching device break-make, finally welding terminal obtain meeting the external characteristic curve (volt/pacify curve) of welding process requirement needs and certain impulse waveform current/voltage.
Simultaneously, it can also be made to control the mode of operation of automatic wire feeder according to welding process requirement by the digital processing system of programme-control MCU1, as by pulse-width modulation circuit output control automatically signal control wire feed rate and open, stopping time sequence, accurately control each sequential such as welding process.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made in the spirit and principles in the present invention, should be included in protection scope of the present invention.
Claims (9)
1. become more meticulous a Multifunctional welding welding system, is provided with the welding module for implementing welding；If
It is placed on described welding module, for the sampling unit that welding current/voltage is sampled；With described
Sampling unit, described welding module are electrically connected, for carrying for this Multifunctional welding welding system that becomes more meticulous
The power module of power supply source；It is characterized in that, be additionally provided with and described sampling unit, power module electricity
Connect, be used for storing all kinds of weld signature parameter and according to this feature parameter to described become more meticulous multi-functional
The control module that in welding system, other modules are controlled；Described control module mainly include for
Output pulse width modulator control signal and other modules in this system being controlled according to described characteristic parameter
Main control circuit and be connected with this main control circuit, the man-machine friendship regulated for model selection and parameter
Control circuit mutually；Small area analysis stable module also it is in series with between described control module and described welding module；
Described small area analysis stable module mainly includes being sequentially connected in series: DC source, current-limiting resistance and control are left
Close；
It is additionally provided with the temperature sense electricity being connected between described control module and described power module
Road；
It is additionally provided with the fan drive circuit being connected respectively with described control module and fan, described control
The hotness signal that module inputs according to described temperature sense circuit control described fan drive circuit promote or
Reduce the revolution of fan；
It is additionally provided with the fault sensing mould being connected respectively with described temperature sense circuit, described control module
Block, when described temperature sense circuit detecting to temperature exceed setting time, described fault induction module
Send fault-signal and stop output pulse width modulator control signal to described control module, described control module.
The most according to claim 1, one becomes more meticulous Multifunctional welding welding system, it is characterised in that institute
State power module mainly include being sequentially connected in series the switch of setting and filter circuit, rectifier bridge, mu balanced circuit,
Insulated gate bipolar translator power tube inverse changing driving circuit, main transformer, output rectification circuit, output reactance
Device, secondary insulating grid bipolar-type power pipe inverse changing driving circuit, Hall element circuit；Described voltage stabilizing
Circuit input end has also been arranged in parallel auxiliary power circuit and primary side voltage sensor；Described insulated gate
It is additionally provided with the first critesistor on bipolar-type power pipe inverse changing driving circuit；Described output rectification circuit
It is provided with the second critesistor；
Described temperature sense circuit, one end is connected with first, second critesistor respectively, and one end is passed through
It is connected to described main control circuit after fault induction module connect；
Described welding module is additionally provided with: be connected to described main control circuit and described power module
Between high-frequency arc strike control circuit, anti-electric hit manual welding selection circuit, non-melt pole gas shield welding carries arc
Selection circuit；
Described sampling unit is provided with and is connected between described control module and described power module
Pulse current sample circuit, current feedback circuit and voltage feedback circuit；Described pulse current sampling electricity
One end, road is connected with described main control circuit, and one end is connected to described main transformer and described output rectification
Node between circuit；
Described current feedback circuit one end is connected with described main control circuit, and one end is connected to described Hall
Sensor circuit；
Described voltage feedback circuit one end is connected with described main control circuit, and one end is connected to described Hall
Node between the positive pole of sensor circuit and described welding module；
Described high-frequency arc strike control circuit is additionally provided with striking coil, and described striking coil one end is with described
Output rectification circuit connects, and one end is connected with the negative pole of described welding module；
Described anti-electric manual welding selection circuit one end of hitting is connected with described main control circuit, and one end is connected to
Node between described output rectification circuit and described striking coil；
Described non-melt pole gas shield welding carries arc selection circuit one end and is connected with described main control circuit, one end
It is connected to the node between described output rectification circuit and described striking coil；
Described fault induction module is additionally provided with and is connected to described insulated gate bipolar translator power tube inversion driving
The main circuit sensor of node between circuit and described main transformer；
Described human-computer interactive control circuit is provided with the precision current being respectively connecting to described main control circuit
Adjust circuit, with reference to regulation and mode selection switch；
Described main control circuit is connected with electromagnetic valve also by air valve control circuit, is used for controlling to protect gas
The release of body；
Described main control circuit drives with secondary insulating grid bipolar-type power pipe inversion also by drive circuit
Circuit connects；Described drive circuit one end is connected to described rectifier bridge and the node in described mu balanced circuit；
The described drive circuit of described fault induction module one end access in parallel with described main control circuit.
The most according to claim 2, one becomes more meticulous Multifunctional welding welding system, it is characterised in that institute
State power module and use the switching frequency of more than 60KHZ；Described power module is according to described pulsewidth modulation
Control signal is to described welding module voltage pulse output and pulse current.
The most according to claim 3, one becomes more meticulous Multifunctional welding welding system, it is characterised in that institute
State current feedback circuit specifically include that the first terminals, first to fourth operational amplifier, the 17th
To the 18th operational amplifier, the 15th to the 29th resistance, the 109th to the 110th
Resistance, the 3rd to the 7th electric capacity, the 321st to the 322nd electric capacity, the second diode
Group, the 3rd diode, the 46th diode group, the 5th test lead and se current terminal, sense
Current terminal and current detecting end；
Described 15th resistance one end is connected to the first terminals 3 mouthfuls, and one end is connected to the described 2nd 2
The negative pole of pole pipe group, the positive pole of described second diode group, described 18th resistance, the described 19th
Resistance, described 109th resistance, described 110th resistance, ground wire are sequentially connected in series；Described
22nd resistance, described 24th resistance, described 26th resistance, described 27th electricity
Resistance, described 17th operational amplifier, described 18th operational amplifier, described current detecting end depend on
It is connected to after secondary series connection on the node between the 19th resistance and the 109th resistance；Described 3rd electricity
The positive pole held is connected to described first terminals 3 mouthfuls, and the negative pole of described 3rd electric capacity is connected to described the
4 mouthfuls of one terminals；Described 5th test lead and described sense current terminal are attempted by the described 19th
On node between resistance and described 22nd resistance；Described 23rd resistance one end is connected to institute
Stating the 5th test lead, one end is connected to described ground wire；Described 16th resistor coupled in parallel is in the described 2nd 2
The both positive and negative polarity of pole pipe group；Described 17th resistance one end is connected to described first terminals 3 mouthfuls, another
The node that end is connected between described 18th resistance and the 19th resistance；The positive pole of described 4th electric capacity
Being connected to 6 mouthfuls of described second operational amplifier, the negative pole of described 4th electric capacity is connected to described second
7 mouthfuls of operational amplifier；Described 21st resistance one end is connected to the positive pole of described 5th electric capacity,
The other end is connected to one end of described 22nd resistance, and the negative pole of described 5th electric capacity is connected to described
The other end of the 22nd resistance；Described 3rd diode cathode be connected to described 24th resistance with
Node between described 26th resistance, described 3rd diode cathode is connected to the 26th resistance
And the node between described 27th resistance；After described 6th electric capacity is in parallel with described 7th electric capacity,
Positive pole is connected to the 3rd diode cathode, and negative pole is connected to ground wire；Described 321st electric capacity
Positive pole is connected to the first terminals 1 mouthful, and the negative pole of described 321st electric capacity is connected to ground wire；
The negative pole of described 322nd electric capacity is connected to 2 mouthfuls of the first terminals, and the described 320th
The positive pole of two electric capacity is connected to ground wire；2 mouthfuls of described first operational amplifier are connected to the described 2nd 2
Pole pipe group negative pole, 1 mouthful of described first operational amplifier is connected to the centre of described second diode group
Pole, accesses ground wire after 3 mouthfuls of concatenation the 28th resistance of described first operational amplifier；Described second
6 mouthfuls of operational amplifier are connected to the node between described 18th resistance and the 19th resistance, described
7 mouthfuls of second operational amplifier are connected to sense current terminal, 5 mouthfuls of described second operational amplifier
Ground wire is accessed after concatenating the 29th resistance；6 mouthfuls of described 3rd operational amplifier are connected to described two
Node between the positive pole of 11 resistance and the 5th electric capacity；7 mouthfuls of connections of described 3rd operational amplifier
To described 3rd diode cathode；5 mouthfuls of described 3rd operational amplifier are connected to the described 22nd
Node between the negative pole of resistance and described 5th electric capacity；2 mouthfuls and 1 of described four-operational amplifier
Mouthful and access se current terminal after connecing；3 mouthfuls of access the 109th resistance of described four-operational amplifier
And the node between the 110th resistance；The dynode of the 46th diode group accesses described first
3 mouthfuls of terminals；
Described voltage feedback circuit specifically includes that the 31st terminals, the 5th to the 7th voltage signal
Follower, the first to the 3rd resistance, the 8th to the 14th resistance, the first to the second electric capacity, the one or two
Pole pipe, the 42nd to the 45th diode, the 4th test lead, sense voltage end, se voltage
End, striking indication end；
The negative pole of described 42nd diode and the negative pole of described 44th diode also connect, described
The positive pole of the 43rd diode and the positive pole of the 45th diode also access ground wire after connecing, and described the
The positive pole of 42 diodes is connected to the negative pole of described 43rd diode, and the described 44th
The positive pole of pole pipe is connected to the negative pole of the 45th diode, forms the first bridge rectifier；Described
3 mouthfuls of 31st terminals are connected to the positive pole of described 42nd diode, and the described 31st
4 mouthfuls of terminals are connected to the positive pole of described 44th diode；Described first resistor coupled in parallel is in institute
State on the negative pole of the 44th diode and the positive pole of the 45th diode；Described second resistance and
It is connected in parallel on described first resistance two ends after three resistance concatenations；The positive pole of described first electric capacity is connected to described
Node between 3rd resistance and described second resistance, the negative pole of described first electric capacity is connected to ground wire；
3 mouthfuls of described 5th voltage signal follower are connected between described second resistance and described 3rd resistance
Node, 2 mouthfuls of described 5th voltage signal follower and be connected to described 4th survey after being connected to 1 mouthful
Node after trying end and described sense voltage end and connecing；3 mouthfuls of described 6th voltage signal follower
Described 4th test lead, described 6th voltage signal follower it is connected to described tenth resistance after concatenating
2 mouthfuls concatenate with described 9th resistance after be connected to described 4th test lead, described 6th voltage signal
1 mouthful of follower is connected to described striking indication end；The positive pole of described second electric capacity is connected to described
Node between 11 resistance and 1 mouthful of described 5th voltage signal follower, described second electric capacity
Negative pole is connected to ground wire；Described 11st resistance one end is connected to the 4th test lead, and the other end is connected to
Described ground wire；The negative pole of described first diode is connected to 3 mouthfuls of described 6th voltage signal follower,
The positive pole of described first diode is connected to described 6th voltage signal after concatenating with described 12nd resistance
1 mouthful of follower；Described 4th test lead, described 13rd resistance, described 14th resistance, institute
State ground wire to be sequentially connected in series；5 mouthfuls of described 7th voltage signal follower are connected to the 13rd resistance and
Node between 14 resistance, 6 mouthfuls of described 7th voltage signal follower and described 7th voltage letter
7 mouthfuls of number follower and access se voltage end after connecing；
Described pulse current sample circuit specifically includes that the 4th terminals, the 9th to the tenth voltage signal
Follower, the 303rd to the 304th resistance, the 213rd to the 214th electricity
Resistance, the 64th to the 67th electric capacity, the 30th to the 31st diode, the 32nd to
39 fast recovery diodes, the second to the 3rd transformer, output signal end；
Described 32nd to the 35th fast recovery diode forms the second bridge rectifier；Described
3 mouthfuls of 4th terminals are connected to the positive pole of described 34th fast recovery diode, and the described 4th connects
4 mouthfuls of line end are connected to the positive pole of described 32nd fast recovery diode；Described 65th electric capacity
After described 303rd resistance and described 213 resistor coupled in parallel, the negative pole of this electric capacity connects
To the positive pole of the 33rd fast recovery diode, the positive pole of this electric capacity is connected to the 32nd and recovers two soon
The negative pole of pole pipe；5 mouthfuls of described 9th voltage signal follower are connected to the described 32nd and recover soon
The negative pole of diode, 6 mouthfuls of described 9th voltage signal follower are connected to described output signal end,
7 mouthfuls of described 9th voltage signal follower are connected to the positive pole of described 30th diode；Described
The negative pole of 30 diodes is connected to described output signal end；
Described 36th to the 39th fast recovery diode composition the 3rd bridge rectifier；Described
1 mouthful of 4th terminals is connected to the positive pole of described 38th fast recovery diode, and the described 4th connects
2 mouthfuls of line end are connected to the positive pole of described 36th fast recovery diode；Described 64th electric capacity
After described 304th resistance and described 214 resistor coupled in parallel, the negative pole of this electric capacity connects
To the positive pole of the 37th fast recovery diode, the positive pole of this electric capacity is connected to the 36th and recovers two soon
The negative pole of pole pipe；3 mouthfuls of described tenth voltage signal follower are connected to the described 36th and recover soon
The negative pole of diode, 2 mouthfuls of described tenth voltage signal follower are connected to described output signal end,
1 mouthful of described tenth voltage signal follower is connected to the positive pole of described 31st diode；Described
The negative pole of the 31st diode is connected to described output signal end；Described tenth voltage signal follower
8 mouthfuls of positive 15V normal voltages of access and be connected to the positive pole of described 66th electric capacity, this electric capacity
Negative pole is connected with ground wire；The negative 15V normal voltage of 4 mouthfuls of accesses of described tenth voltage signal follower is also
Being connected to the positive pole of described 67th electric capacity, the negative pole of this electric capacity is connected with ground wire；Described 30th
With ground wire after the positive pole of five fast recovery diodes is in parallel with the positive pole of described 37th fast recovery diode
Connect.
The most according to claim 4, one becomes more meticulous Multifunctional welding welding system, it is characterised in that institute
State temperature sense circuit specifically include that the first to the second critesistor, the 8th to the 9th terminals,
11 to the 13rd operational amplifiers, the 294th to the 309th resistance, the 71st to
76th electric capacity, the 131st electric capacity, the 28th to the 29th diode, first to
Second temperature monitoring end；
Described first critesistor is serially connected with between 1 mouthful and 2 mouthfuls of described 8th terminals, and described
Two critesistor are serially connected with between 1 mouthful and 2 mouthfuls of described 9th terminals；Described 71st electric capacity
Positive pole be connected to 2 mouthfuls of described 8th terminals, the negative pole of this electric capacity is connected with ground wire；Described
The positive pole of 74 electric capacity is connected to 2 mouthfuls of described 9th terminals, and the negative pole of this electric capacity is with ground wire even
Connect；Described 72nd electric capacity is connected to 1 mouthful of described 8th terminals, the negative pole of this electric capacity and ground
Line connects；The positive pole of described 75th electric capacity is connected to 1 mouthful of described 9th terminals, this electric capacity
Negative pole be connected with ground wire；Described 294th resistance, the 295th resistance, the 200th
97 resistance are sequentially connected in series rear two ends and all access ground wire；Described 303rd resistance, the 300th
Four resistance, the 305th resistance are sequentially connected in series rear two ends and all access ground wire；296th resistance,
298th resistance is sequentially connected in series rear two ends and all accesses ground wire；1 mouthful of company of described 8th terminals
Being connected to the node between described 294 resistance and described 295 resistance, the described 8th connects
2 mouthfuls of line end are connected to the node between described 295 resistance and described 297 resistance,
1 mouthful of described 9th terminals is connected between described 303 resistance and described 304 resistance
Node, 2 mouthfuls of described 9th terminals are connected to described 304 resistance and described 305
Node between resistance；The positive pole of described 73rd electric capacity is connected to described 298th resistance
And the node between the 296th resistance, the negative pole of described 73rd electric capacity is connected to ground wire；
3 mouthfuls of described 11st operational amplifier are connected to described 296th resistance and described 209
Node between 18 resistance, 2 mouthfuls of described 11st operational amplifier are connected to this operational amplifier
1 mouthful；2 mouthfuls of described 8th terminals, described 299th resistance, the described 300th
One resistance, 5 mouthfuls of described 12nd operational amplifier be sequentially connected with；Described 131st electric capacity
Positive pole be connected to described 299th resistance and the described 301st node in the middle of resistance,
The negative pole of this electric capacity connects ground wire；Described 300th resistance is serially connected in the 1 of described 11st operational amplifier
Between mouth and 6 mouthfuls of described 12nd operational amplifier；The positive pole of described 28th diode connects
To 7 mouthfuls of described 12nd operational amplifier, the negative pole of described 28th diode is connected to first
Temperature monitoring end；Described 302nd resistance be serially connected in 6 mouthfuls of described 12nd operational amplifier with
Between the negative pole of described 28th diode；2 mouthfuls of described 9th terminals, the described 300th
Seven resistance, described 308th resistance, 10 mouthfuls of described 13rd operational amplifier be sequentially connected in series；
The negative pole of described 76th electric capacity is connected to ground wire, and the positive pole of this electric capacity is connected to the described 300th
Node between seven resistance and described 308th resistance；Described 306th resistance is serially connected in institute
State between 1 mouthful of the 11st operational amplifier and 9 mouthfuls of described 13rd operational amplifier；Described
29 diode cathodes are connected to 8 mouthfuls of described 13rd operational amplifier, and the described 29th
The negative pole of pole pipe is connected to the second temperature monitoring end；Described 309th resistance is serially connected with the described tenth
The negative pole of 9 mouthfuls of three operational amplifiers and described 29th diode；
Described fan drive circuit specifically include that photoelectrical coupler, the 11st terminals, the 45th
To the 50th resistance, the 37th to the 38th electric capacity, the 62nd electric capacity, the 27th pole
Pipe, the 202nd diode, the 4th Zener diode, the 3rd field effect transistor, the 4th audion,
Inductance, signal input part and fan；
Described signal input part, described 50th resistance, described 49th resistance, described smooth thermocouple
2 mouthfuls of clutch are sequentially connected in series；3 mouthfuls of described photoelectrical coupler are connected to described 50th resistance and institute
Stating the node between the 49th resistance, 6 mouthfuls of described photoelectrical coupler are connected to this photoelectrical coupler
7 mouthfuls；Described 38th capacitance cathode is connected to 8 mouthfuls of described photoelectrical coupler, and the described 3rd
The negative pole of 18 electric capacity is connected to 5 mouthfuls of described photoelectrical coupler；Described 44th resistance one end is even
Being connected to 7 mouthfuls of described photoelectrical coupler, the other end is connected to the negative pole of described 202nd diode,
The positive pole of described 202nd diode is connected to the control pole of described 3rd field effect transistor；Described
48 resistance be serially connected in 7 mouthfuls of described photoelectrical coupler with the control pole of described 3rd field effect transistor it
Between；The positive pole of described 4th Zener diode is connected to 5 mouthfuls of described photoelectrical coupler, and the described 4th
The negative pole of Zener diode is connected to the positive pole of described 202nd diode；Described 45th electricity
Resistance is serially connected with between control pole and the source electrode of described 3rd field effect transistor；The current collection of described 4th audion
Pole is connected to the control pole of described 3rd field effect transistor, and the emitter stage of described 4th audion is connected to institute
State photoelectrical coupler 5 mouthfuls；The base stage of described 4th audion, the 46th resistance, the 3rd effect
Should the source electrode of pipe be sequentially connected in series；Described 47th resistance be serially connected with 5 mouthfuls of described photoelectrical coupler with
Between the source electrode of described 3rd field effect transistor；The positive pole of described 27th diode is connected to described
The drain electrode of three field effect transistor, the negative pole of described 27th diode is connected to the 8 of described photoelectrical coupler
Mouthful and 1 mouthful of described 11st terminals；The positive pole of described 62nd electric capacity is connected to described photoelectricity
8 mouthfuls of bonder, the negative pole of described 62nd electric capacity is connected to the emitter stage of described 4th audion；
Described inductance is serially connected with 2 mouthfuls of described 27th diode cathode and described 11st terminals；Institute
State the 37th capacitance cathode and be connected to 1 mouthful of described 11st terminals, described 37 electric capacity
Negative pole is connected to 2 mouthfuls of described 11st terminals；Described fan is serially connected in described 11st terminals
1 mouthful and 2 mouthfuls of described 11st terminals between.
The most according to claim 5, one becomes more meticulous Multifunctional welding welding system, it is characterised in that institute
State precision current adjustment circuit and specifically include that sense current terminal, big current terminal, small area analysis end, error
Outfan, the tenth four to ten six operational amplifier, the 33rd operational amplifier, the 70th five to nine
11 resistance, the 113rd resistance, the 416th resistance, the 506th resistance,
501 ten to five hundred one ten three resistance, the 515th resistance, the 630th resistance, second
To the 3rd adjustable resistance, the 15th to the 19th electric capacity, the 8th diode group, the 13rd diode group,
12nd diode, the 14th diode, the 7th to the 8th Zener diode, the 27th field effect
Pipe；
Described big current terminal, described 86th resistance, described 87th resistance, the described 80th
Nine resistance, described 88th resistance, described sense current terminal are sequentially connected in series；Described 19th electricity
The negative pole held is connected to the node between described 88th resistance and described 89th resistance；Described
92nd resistance be serially connected in the positive pole of described 19th electric capacity and described 14th diode negative pole it
Between, the positive pole of described 14th diode is connected to described error output；Described 416th
Resistance is serially connected between described big current terminal and ground wire；2 mouthfuls of companies of described 33rd operational amplifier
It is connected to the node between described 86th resistance and described 87th resistance, described 33rd fortune
Calculating 3 mouthfuls of amplifier and be connected to ground wire, 1 mouthful of described 33 operational amplifiers is connected to described the
Node between 87 resistance and described 89th resistance；The movable end of described 3rd adjustable resistance
With fixing end 1 access ground wire after connecing, the fixing end 3 of described 3rd adjustable resistance connects the 603rd
2 mouthfuls of described 33rd operational amplifier it are connected to after ten resistance；Described 13rd diode group
Positive pole and negative pole also access the negative pole of the 19th electric capacity, the dynode series connection of described 13rd diode group
Ground wire is accessed after 90th resistance；6 mouthfuls of described tenth four-operational amplifier are connected to the described 19th
The negative pole of electric capacity, 5 mouthfuls of access ground wires of described tenth four-operational amplifier, described 14th computing is put
7 mouthfuls of big device are connected to the negative pole of the 14th diode；The positive pole of described 8th Zener diode connects
To the dynode of described 13rd diode group, the negative pole of described 8th Zener diode is connected to described
The negative pole of the 14th diode；The negative pole of described 18th electric capacity, described 506th resistance, institute
The negative pole stating the 50th diode is sequentially connected in series, and the positive pole of described 50th diode is connected to described
The positive pole of 18 electric capacity；The negative pole of described 18th diode is additionally coupled to the negative pole of the 19th electric capacity,
The positive pole of described 18th diode is additionally coupled to the negative pole of described 14th diode；Described 90th
One resistor coupled in parallel is in described 18th electric capacity two ends；
Described 77th resistance, described 78th resistance, described 79th resistance, described
16 electric capacity negative poles are sequentially connected in series, described 16th capacitance cathode, described 82nd resistance, described
12nd diode cathode is sequentially connected in series, described 12nd diode cathode, the described 113rd
Resistance, described error output are sequentially connected in series；Described 510th resistance is connected to described second can
Adjust the fixing end 3 of resistance；Described small area analysis end, described 511st resistance, described second adjustable
The fixing end 1 of resistance is sequentially connected in series；5 mouthfuls of described 15th operational amplifier are connected to described second
The movable end of adjustable resistance, 6 mouthfuls of described 15th operational amplifier are connected to described 15th computing
7 mouthfuls of amplifier, 7 mouthfuls of described 15th operational amplifier and described 515th resistance string
The negative pole of described 16th electric capacity it is connected to after connection；Described 512nd resistance, described 501
13 resistance, ground wire are sequentially connected in series；Described 513rd resistance is also serially connected in the described 27th
Between source electrode and the control pole of described 27th field effect transistor of field effect transistor, described 27th
The drain electrode of effect pipe is connected to the node between described 77th resistance and described 78th resistance；
The negative pole of described 16th electric capacity it is connected to after described sense current terminal described 75th resistance of series connection；
The positive pole of described 8th diode group and the negative pole of described 8th diode group also access the 16th electricity after connecing
The negative pole held, accesses ground wire after dynode described 80th resistance of series connection of described 8th diode group；
3 mouthfuls of described 16th operational amplifier are connected to ground wire, 2 mouthfuls of described 16th operational amplifier
Being connected to the negative pole of described 16th electric capacity, 1 mouthful of described 16th operational amplifier is connected to described
The positive pole of the 12nd diode；The positive pole of described 7th Zener diode is connected to described 8th diode
The dynode of group, the negative pole of described 7th Zener diode is connected to the positive pole of described 12nd diode；
The positive pole of described 15th electric capacity is connected to the positive pole of described 12nd diode, described 15th electric capacity
Negative pole be connected to the negative pole of described 16th electric capacity.
7. according to the controlling party of the Multifunctional welding welding system that becomes more meticulous a kind of described in any one of claim 1-6
Method, it is characterised in that mainly comprise the steps that
The output voltage/electric current of described welding module is sampled by sampling unit described in step a., and will
The sampled signal generated is transferred to described control module；
Control module described in step b. judges welds types according to described sampled signal；
Control module described in step c. is stable to described power module and described small area analysis according to welds types
Module exports corresponding described pulse-width modulation control signal；
Power module described in step d. exports corresponding pulse voltage according to described pulse-width modulation control signal
/ electric current；Described small area analysis stable module exports corresponding stabilising arc electricity according to described pulse-width modulation control signal
Pressure.
The control method of a kind of Multifunctional welding welding system that becomes more meticulous, it is special
Levy and be, further comprising the steps of after step d:
Temperature sense circuit described in step e. sends the real-time temperature of described power module to described control module
Degree signal；
Control module described in step f. controls the revolution of fan according to described real time temperature signal.
The control method of a kind of Multifunctional welding welding system that becomes more meticulous, it is special
Levy and be, further comprising the steps of after step e:
The described real time temperature letter that described temperature sense circuit is exported by fault induction module described in step g.
Number contrast with described setting；
If temperature value is more than or equal to described setting in described real time temperature signal, the most described fault senses
Module sends fault-signal to described control module；
If described temperature value is less than described setting, then proceed contrast；
Control module described in step h., according to the described fault-signal of input, stops exporting described pulsewidth and adjusts
Control signal processed.
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| CN106425027B (en) * | 2016-07-13 | 2018-08-10 | 苏州新逸喆电子科技有限公司 | A kind of current control module for wireless electric welding machine |
| CN106180973B (en) * | 2016-08-09 | 2018-07-20 | 上海广为焊接设备有限公司 | Fine tele-control system and method for argon arc welding machine |
| CN109166954B (en) * | 2018-07-31 | 2020-06-16 | 珠海宏光照明器材有限公司 | LED lamp bead production method and system |
| CN109719369B (en) * | 2019-02-26 | 2021-01-05 | 湘潭大学 | A welding seam tracking method for real-time deviation correction of multi-pole capacitive sensing magnetron |
| CN109746603B (en) * | 2019-03-28 | 2024-04-09 | 北部湾大学 | A welding system for ship assembly plate frame structure |
| CN110429853B (en) * | 2019-08-12 | 2024-06-21 | 田云 | Multipath synchronous PWM current controller |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5786558A (en) * | 1995-08-02 | 1998-07-28 | Miyachi Technos Corporation | Method and apparatus for controlling inverter resistance welding |
| CN201760694U (en) * | 2010-09-21 | 2011-03-16 | 深圳市华意隆实业发展有限公司 | Inversion type AC/DC pulse non-melting pole inert gas protection welder |
| CN202344104U (en) * | 2011-09-29 | 2012-07-25 | 熊猫电子集团有限公司 | Multifunctional digital welding machine |
| CN203448847U (en) * | 2013-09-02 | 2014-02-26 | 华南理工大学 | High-power double-wire pulse MIG welding inverter power supply system |
| CN203541813U (en) * | 2013-11-27 | 2014-04-16 | 深圳华意隆电气股份有限公司 | Digitization multifunctional solar electric arc welding machine |
| CN204209259U (en) * | 2014-11-05 | 2015-03-18 | 深圳华意隆电气股份有限公司 | One becomes more meticulous Multifunctional welding welding system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5199802B2 (en) * | 2008-09-17 | 2013-05-15 | 株式会社ダイヘン | 2-wire welding method |
-
2014
- 2014-11-05 CN CN201410616044.7A patent/CN104439621B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5786558A (en) * | 1995-08-02 | 1998-07-28 | Miyachi Technos Corporation | Method and apparatus for controlling inverter resistance welding |
| CN201760694U (en) * | 2010-09-21 | 2011-03-16 | 深圳市华意隆实业发展有限公司 | Inversion type AC/DC pulse non-melting pole inert gas protection welder |
| CN202344104U (en) * | 2011-09-29 | 2012-07-25 | 熊猫电子集团有限公司 | Multifunctional digital welding machine |
| CN203448847U (en) * | 2013-09-02 | 2014-02-26 | 华南理工大学 | High-power double-wire pulse MIG welding inverter power supply system |
| CN203541813U (en) * | 2013-11-27 | 2014-04-16 | 深圳华意隆电气股份有限公司 | Digitization multifunctional solar electric arc welding machine |
| CN204209259U (en) * | 2014-11-05 | 2015-03-18 | 深圳华意隆电气股份有限公司 | One becomes more meticulous Multifunctional welding welding system |
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