CN205684890U - Automatically the resistance spot weld welding machine of welding quality is monitored - Google Patents
Automatically the resistance spot weld welding machine of welding quality is monitored Download PDFInfo
- Publication number
- CN205684890U CN205684890U CN201620247082.4U CN201620247082U CN205684890U CN 205684890 U CN205684890 U CN 205684890U CN 201620247082 U CN201620247082 U CN 201620247082U CN 205684890 U CN205684890 U CN 205684890U
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- welding
- pulse
- welding head
- welding quality
- parallel electrode
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Abstract
The utility model discloses the resistance spot weld welding machine of a kind of automatic monitoring welding quality, including: mash welder main frame, it is provided with the source of welding current comprising central processing circuit and pulse output transformer；Spot welding head, is provided with the welding head holder that can install parallel electrode welding head, and spot welding head is electrically connected with mash welder main frame by the output cable of pulse output transformer；And with mash welder main frame be electrically connected with welding quality automated watch-keeping facility.Welding quality automated watch-keeping facility includes that the parallel electrode welding head output energy of pulse is detected in real time by pulse output electrical quantity real-time detection circuit and welding quality observation circuit, pulse output electrical quantity real-time detection circuit by current sensor and central processing circuit.Welding quality observation circuit by being set to the monitor value of welding quality by the certain percentage of real-time for parallel electrode welding head output energy of pulse detected value, when parallel electrode welding head operation, the energy of output sends alarm signal when being less than monitor value, it is achieved the automatic monitoring of welding quality.
Description
Technical field
This utility model belongs to electric resistance welding field, and more specifically, this utility model relates to one can monitor welding automatically
The resistance spot weld welding machine of quality, it can be applicable to the micro-welding of electric resistance welding of parallel electrode welding head welding enamel-covered wire.
Background technology
Existing resistance spot weld welding machine includes resistance spot weld welding machine, the electric resistance welding spot welding of Constant current output that constant voltage exports
Machine, and the resistance spot weld welding machine of constant power output.
The resistance spot weld welding machine of above-mentioned three kinds of pulses output is respectively using voltage, electric current, power and time as pulse output
Electrical quantity is presetting, and according to Joule's law, pulse output electrical quantity also includes the output energy of pulse and pulse output resistance.Because
Conventional, electric-resistance weldering welded piece often differs, and detection pulse output resistance, the output energy of pulse do not have practical significance in real time, institute
Typically it is not related to the output energy of pulse, the real-time detection of pulse output resistance with the resistance spot weld welding machine of prior art.
But, in the manufacture process of electronic devices and components, need to weld a large amount of enamel-covered wire workpiece with parallel electrode welding head, existing
There is the resistance spot weld welding machine that technology does not also have parallel electrode welding head welding quality automatically to monitor.In view of this, necessary offer
A kind of resistance spot weld welding machine of automatic monitoring welding quality.
Summary of the invention
The purpose of this utility model is: providing the resistance spot weld welding machine of a kind of automatic monitoring welding quality, it can be used for
Parallel electrode welding head welds a large amount of enamel-covered wire workpiece.
In order to realize foregoing invention purpose, the utility model proposes the electric resistance welding spot welding of a kind of automatic monitoring welding quality
Machine, comprising:
Mash welder main frame, it is provided with the source of welding current comprising central processing circuit and pulse output transformer；
Spot welding head, it is provided with the welding head holder that can install parallel electrode welding head, and spot welding head passes through pulse output transformer
Output cable and mash welder main frame be electrically connected with；And
Welding quality automated watch-keeping facility, welding quality automated watch-keeping facility is electrically connected with mash welder main frame.
Automatically monitor a kind of improvement of the resistance spot weld welding machine of welding quality as this utility model, described welding quality is certainly
Dynamic monitoring device comprises pulse output electrical quantity real-time detection circuit and welding quality observation circuit；
Described pulse output electrical quantity real-time detection circuit is realized parallel with central processing circuit by current sensor
The real-time detection of the welding head of electrode output energy of pulse；
Described welding quality observation circuit is by by certain the hundred of real-time for parallel electrode welding head output energy of pulse detected value
Proportion by subtraction is provided parallel to the monitor value of welding head of electrode welding quality, and when parallel electrode welding head operation, the energy of output is less than monitoring
Value i.e. sends alarm signal, it is achieved the automatic monitoring to parallel electrode welding head welding quality.
Automatically a kind of improvement of the resistance spot weld welding machine of welding quality, described pulse output electricity is monitored as this utility model
Electrical parameter detection circuit includes pulse output circuit, the output energy of pulse, pulse output resistance, pulse output voltage, pulse defeated
Go out the real-time detection of time, and the real-time detection to each parallel electrode welding head welding times.
Automatically a kind of improvement of the resistance spot weld welding machine of welding quality, described mash welder main frame is monitored as this utility model
Panel on LCDs, numeral toggle switch and startup/roof-cut resistence are set, LCDs show the arteries and veins detected in real time
Punching output electrical quantity, numeral toggle switch is set to welding quality prison real-time for output energy of pulse detected value with certain percentage
Measured value, startup/roof-cut resistence is used for starting welding quality automated watch-keeping facility and cutting off alarm signal.
Automatically monitor a kind of improvement of the resistance spot weld welding machine of welding quality as this utility model, described welding quality is supervised
The 90%-98% of real-time for output energy of pulse detected value is set to the monitor value of welding quality by slowdown monitoring circuit.
Automatically monitor a kind of improvement of the resistance spot weld welding machine of welding quality as this utility model, described parallel pole welds
Head is bonding tool tip contact parallel electrode welding head, cylindrical bonding tool tip Contiuum type parallel electrode welding head, or pancake weldering
The most advanced and sophisticated Contiuum type parallel electrode welding head of head.
Relative to prior art, this utility model has the special knot of resistance joint portion according to parallel electrode welding head tip
Structure, proposes the real-time detection to the parallel electrode welding head output energy of pulse, and namely welding quality is in the output energy of pulse
Detection.This utility model is automatically monitored the resistance spot weld welding machine of welding quality and is included spot welding head, mash welder main frame, and includes
Pulse output electrical quantity real-time detection circuit and the welding quality automated watch-keeping facility of welding quality observation circuit.Pulse output electricity
Parameter real-time detection circuit is achieved the parallel electrode welding head output energy of pulse by current sensor and central processing circuit
Real-time detection；The certain percentage of real-time for output energy of pulse detected value is then provided parallel to electricity by welding quality observation circuit
The monitor value of pole soldering tip welding quality, the output energy of pulse when parallel electrode welding head operation sends report less than monitor value
Alert, it is achieved the automatic monitoring to parallel electrode welding head welding quality.This utility model is that parallel electrode welding head welds a large amount of enamel-covers
Lineman's part provides a kind of not only can monitor welding quality but also can automatically monitor the electric resistance welding of parallel electrode welding head duty automatically
Mash welder.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and detailed description of the invention, the resistance spot weld welding machine of monitoring welding quality automatic to this utility model
It is described in detail, wherein:
Fig. 1 is structural representation and the partial enlarged drawing of different types of parallel electrode welding head.
Fig. 2 is work process and the principle schematic of parallel electrode welding head.
Fig. 3 is the circuit theory diagrams that this utility model monitors the resistance spot weld welding machine of welding quality automatically.
Fig. 4 is display and the operation chart that this utility model monitors the resistance spot weld welding machine of welding quality automatically.
Detailed description of the invention
In order to make goal of the invention of the present utility model, technical scheme and Advantageous Effects thereof become apparent from, below in conjunction with
The drawings and specific embodiments, are further elaborated to this utility model.It should be appreciated that described in this specification
Detailed description of the invention be only used to explain this utility model, be not intended to limit this utility model.
This utility model to weld a large amount of enamel-covered wire workpiece for parallel electrode welding head provides welding quality automatically to monitor, therefore
First have to illustrate the structure of parallel electrode welding head, the work process of parallel electrode welding head welding enamel-covered wire and principle, parallel pole
The relation of the soldering tip output energy of pulse and the output energy of pulse welded.
One, the structure of parallel electrode welding head: this utility model is referred to as the welding metal being connected with source of welding current both positive and negative polarity
For electrode, two electrodes are placed in welding the same side and are referred to as parallel pole, two parallel electrodes are solidly fixed referred to as
For parallel electrode welding head, as it is shown in figure 1, parallel electrode welding head mainly has following several types: one is bonding tool tip insulation
Formula parallel electrode welding head, tip insulation formula parallel electrode welding head 101 includes parallel two electrode 101-1,101-2, two electricity
Intermediate insulation fixed layer 101-3 between pole and the bonding tool tip portion 101-4 of two electrodes；Two is that bonding tool tip contact is parallel
Welding head of electrode 102, tip contact type parallel electrode welding head 102 include parallel two electrode 102-1,102-2, two electrodes it
Between intermediate insulation fixed layer 102-3 and two electrodes bonding tool tip contact intrinsic resistance joint portion 102-4；Three is cylinder
The most advanced and sophisticated Contiuum type parallel electrode welding head 103 of shape, cylindrical most advanced and sophisticated Contiuum type parallel electrode welding head 103 includes parallel two
Electrode 103-1,103-2, the intermediate insulation fixed layer 103-3 between two electrodes and the intrinsic electricity of the soldering tip disjunctor of two electrodes
Resistance joint portion 103-4；Four is pancake bonding tool tip Contiuum type parallel electrode welding head 104, pancake bonding tool tip disjunctor
Formula parallel electrode welding head 104 includes parallel two electrode 104-1,104-2, the middle separation trough 104-3 between two electrodes
Intrinsic resistance joint portion 104-4 with the soldering tip disjunctor of two electrodes.It is pointed out that due to nib contacts formula or tip even
Body formula parallel electrode welding head, its bonding tool tip has a feature structure of intrinsic resistance joint portion, the most only nib contacts formula or
Most advanced and sophisticated disjunctor parallel electrode welding head just can weld enamel-covered wire.For the ease of narration, this utility model is only with bonding tool tip disjunctor
Illustrate as a example by formula parallel electrode welding head.
Two, work process and principle: Fig. 2 of parallel electrode welding head directly welding enamelled wires is that parallel electrode welding head directly welds
Connect work process and the principle schematic of enamel-covered wire: first, resistance spot weld welding machine main frame is preset and reserves pulse output electricity ginseng
Number, pressurizes to trigger the source of welding current, pulse output circuit with parallel electrode welding head 201 to by welding lacquered wire 202 on pad 203
204 first pass through the intrinsic resistance joint portion 205 that parallel electrode welding head is most advanced and sophisticated, when the electric current density of intrinsic resistance joint portion 205
When reaching certain value, bonding tool tip produces electric spark, and the insulating barrier on enamel-covered wire is pressed by electric spark as thermocompression bonding and removed, then
The output energy of pulse transfers to act on exposed enamel-covered wire 202 and pad 203, it is achieved has exported in same pulse and has removed enamel-covered wire
Paint and welding.
Three, the parallel electrode welding head output energy of pulse and the relation of the output energy of pulse of welding: in order to understand parallel electricity
The relation of the pole soldering tip output energy of pulse and the output energy of pulse welded, this utility model has done following three experiment:
Experiment one: presetting pulse output voltage is 1.10V, pulse on the pulse output source of welding current of constant voltage regulation and control
Output time is 10ms, sets electrode force as 10N, with the resistance value of bonding tool tip intrinsic resistance joint portion be on spot welding head
The enamel-covered wire of Φ 0.08mm is welded on pad and obtains good welds by the most advanced and sophisticated Contiuum type parallel electrode welding head of 3m Ω
Effect.
This utility model is welding with Agilent oscillograph and current oscilloscope above-mentioned and obtaining good welds effect
Parallel electrode welding head detect；This utility model is again to not carrying out the same parallel electrode welding head of welding job with identical
Electrical quantity conduction pulses output electric current detect, find that the pulse output waveform of the two is identical with current waveform, electricity
The pulse output circuit that stream oscillograph initially shows is all 360A.
Experiment two: this utility model is adjusted to 0.90V presetting for the pulse output voltage of above-mentioned experiment again, other all bars
Part and electrical quantity do not change, and not prison welding occurs in result, to the parallel electrode welding head peace occurring that not prison welding is welded
Prompt human relations oscillograph and current oscilloscope detect, the most also with the same electrical quantity same parallel electricity to not welding
Pole soldering tip detects, and finds that the two is the most identical at oscillographic pulse output waveform, the inceptive impulse output electricity of the two
Stream is all 300A.
Experiment three: this utility model also with the parallel electrode welding head of bonding tool tip insulation to the bare copper wire of Φ 0.08mm with
Welding on the pad of sample, pulse output circuit during current oscilloscope detection acquirement good welds effect is 115A, only soldering tip
About 1/3rd of most advanced and sophisticated disjunctor resistance 3m Ω parallel electrode welding head pulse output circuit.
From above-mentioned experiment it can be seen that identical pulse exports presetting normal parallel electrode welding head, its pulse exports
The real-time detected value of energy is all constant；Parallel electrode welding head realizes paint removal and welding in same pulse output, is by parallel
The output energy of pulse that intrinsic resistance joint portion, welding head of electrode tip produces when turning on electric current completes, to parallel electrode welding head
The detection in real time of the output energy of pulse reflects whether the resistance of bonding tool tip intrinsic resistance joint portion irreversible change, institute occurs
With the detection of the most still parallel electrode welding head duty of detection in real time to the parallel electrode welding head output energy of pulse, it also it is weldering
Connect the quality detection in the output energy of pulse.
Automatically monitor the schematic block circuit diagram of the resistance spot weld welding machine of welding quality below in conjunction with Fig. 3, describe this reality in detail
With novel.
Refer to shown in Fig. 3, civil power 301 enters capacitor charging discharging circuit 303 through rectification circuit 302, then through amplifying electricity
Road 304 enters pulse output transformer 305, the output cable of pulse output transformer 305 is provided with current sensor with inspection
Survey the pulse output circuit that parallel electrode welding head 309 is provided, it is achieved to the enamel-covered wire workpiece 410 paint removal on pad and weldering
Connect.The welding head holder installing parallel electrode welding head 309 is provided with negative-feedback circuit 308 by feedback line, constant voltage regulation and control
Pulse out-put supply enters central processing circuit 307, including negative-feedback circuit by pulse output voltage and time presetting 306
308 and capacitor charging discharging circuit 303, amplifying circuit 304 all enter central processing circuit 307 and accept its instruction, it is achieved pulse is defeated
Going out transformator 305 and export accurate pulse output circuit, the pulse output electrical quantity in welding quality automated watch-keeping facility 311 is real
Time testing circuit achieved by central processing circuit 307 and current sensor include pulse output circuit, pulse output time,
The real-time detection of pulse output voltage, after the detection in real time obtaining above-mentioned electrical quantity, process and ohm by single-chip microcomputer are fixed
Rule, i.e. can get the real-time detection of parallel electrode welding head pulse output resistance, further according to Joule's law Q=I2RT show that pulse is defeated
Go out the real-time detection of energy.
Welding quality observation circuit in welding quality automated watch-keeping facility 311 then certain by by the output energy of pulse
Percentage ratio is provided parallel to welding head of electrode welding quality monitor value, and when parallel electrode welding head operation, the output energy of pulse is less than prison
Measured value i.e. sends alarm signal, it is achieved the automatic monitoring to parallel electrode welding head welding quality.In the shown embodiment, welding
The 90%-98% of real-time for output energy of pulse detected value is set to the monitor value of welding quality by quality-monitoring circuit.
Refer to shown in Fig. 3 and Fig. 4, this utility model is automatically monitored the resistance spot weld welding machine of welding quality and is included: spot welding
Machine host 400, spot welding head 402, welding quality automated watch-keeping facility 311, have welding head holder 403, parallel electricity on spot welding head
Pole soldering tip 404 is arranged on welding head holder 403, presetting except being provided with pulse output on the panel 401 of mash welder main frame 400
Outside dial switch 405, it is also equipped with LCDs 406, numeral toggle switch 407 and startup/roof-cut resistence 408.
LCDs 406 is for showing the real-time detection of various pulse output electrical quantity, including the output energy of pulse, arteries and veins
Rush the display that the electrical quantitys such as output resistance, pulse output circuit, pulse output voltage, pulse output time detect in real time, also may be used
Show the real-time detection of each parallel electrode welding head welding times.
Numeral toggle switch 407 is for being provided parallel to electrode by the certain percentage of real-time for output energy of pulse detected value
The monitor value of soldering tip welding quality, as long as therefore numeral toggle switch 407 two figure places can be achieved with a pulse time actually used
The detection in real time of output energy is set to monitor value, is such as set to 95, means that monitor value is output energy of pulse detected value
95%.
Startup/roof-cut resistence 408 has actually used meaning, obtains with parallel electrode welding head after being satisfied with welding effect during operation
Switch 408 is switched to start position, and welding quality automated watch-keeping facility 311 enters duty, if parallel electrode welding head
During operation, pulse output energy measuring is less than the monitor value set, and i.e. sends alarm signal, and prompting needs affecting welding quality
Condition process, alarm signal needs switch 408 to be transformed into off-position and could close alarm signal after showing.
Relative to prior art, this utility model has the special knot of resistance joint portion according to parallel electrode welding head tip
Structure, proposes the real-time detection to the parallel electrode welding head output energy of pulse, and namely welding quality is in the output energy of pulse
Detection.This utility model is automatically monitored the resistance spot weld welding machine of welding quality and is included spot welding head, mash welder main frame, and includes
Pulse output electrical quantity real-time detection circuit and the welding quality automated watch-keeping facility of welding quality observation circuit.Pulse output electricity
Parameter real-time detection circuit is achieved the parallel electrode welding head output energy of pulse by current sensor and central processing circuit
Real-time detection；The certain percentage of real-time for output energy of pulse detected value is then provided parallel to electricity by welding quality observation circuit
The monitor value of pole soldering tip welding quality, the output energy of pulse when parallel electrode welding head operation sends report less than monitor value
Alert, it is achieved the automatic monitoring to parallel electrode welding head welding quality.
This utility model is that parallel electrode welding head welds a large amount of enamel-covered wire workpiece and provides one and both can automatically monitor welding
Quality can monitor again the resistance spot weld welding machine of parallel electrode welding head duty automatically.
The announcement of book and teaching according to the above description, this utility model those skilled in the art can also be to above-mentioned reality
The mode of executing carries out suitable change and amendment.Therefore, this utility model is not limited to disclosed and described above being embodied as
Modifications and changes more of the present utility model be should also be as falling in scope of the claims of the present utility model by mode.
Although additionally, employ some specific terms in this specification, but these terms are merely for convenience of description, not to this reality
With any restriction of novel composition.
Claims (6)
1. a resistance spot weld welding machine for automatic monitoring welding quality, comprising:
Mash welder main frame, it is provided with the source of welding current comprising central processing circuit and pulse output transformer；And
Spot welding head, it is provided with the welding head holder that can install parallel electrode welding head, and spot welding head is defeated by pulse output transformer
Go out cable to be electrically connected with mash welder main frame；
It is characterized in that, the resistance spot weld welding machine of described automatic monitoring welding quality also includes welding quality automated watch-keeping facility,
Welding quality automated watch-keeping facility is electrically connected with mash welder main frame.
The resistance spot weld welding machine of automatic monitoring welding quality the most according to claim 1, it is characterised in that described welding matter
Amount automated watch-keeping facility comprises pulse output electrical quantity real-time detection circuit and welding quality observation circuit；
Described pulse output electrical quantity real-time detection circuit is realized parallel pole by current sensor and central processing circuit
The real-time detection of the soldering tip output energy of pulse；
Described welding quality observation circuit is by the certain percentage by real-time for parallel electrode welding head output energy of pulse detected value
Being set to the monitor value of parallel electrode welding head welding quality, when parallel electrode welding head operation, the energy of output is sent out when being less than monitor value
Go out alarm signal, it is achieved the automatic monitoring to parallel electrode welding head welding quality.
The resistance spot weld welding machine of automatic monitoring welding quality the most according to claim 2, it is characterised in that described pulse is defeated
Go out electrical quantity real-time detection circuit to include pulse output circuit, the output energy of pulse, pulse output resistance, pulse output electricity
Pressure, pulse output time detect in real time, and the real-time detection to each parallel electrode welding head welding times.
The resistance spot weld welding machine of automatic monitoring welding quality the most according to claim 3, it is characterised in that described mash welder
The panel of main frame is provided with LCDs, numeral toggle switch and startup/roof-cut resistence, and LCDs shows detection in real time
Pulse output electrical quantity, numeral toggle switch by real-time for output energy of pulse detected value with certain percentage be set to weld matter
Amount monitor value, startup/roof-cut resistence is used for starting welding quality automated watch-keeping facility and cutting off alarm signal.
The resistance spot weld welding machine of automatic monitoring welding quality the most according to claim 2, it is characterised in that described welding matter
The 90%-98% of real-time for output energy of pulse detected value is set to the monitor value of welding quality by amount observation circuit.
The resistance spot weld welding machine of automatic monitoring welding quality the most according to claim 1, it is characterised in that described parallel electricity
Pole soldering tip is bonding tool tip contact parallel electrode welding head, cylindrical bonding tool tip Contiuum type parallel electrode welding head, or pancake
Bonding tool tip Contiuum type parallel electrode welding head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620247082.4U CN205684890U (en) | 2016-03-26 | 2016-03-26 | Automatically the resistance spot weld welding machine of welding quality is monitored |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620247082.4U CN205684890U (en) | 2016-03-26 | 2016-03-26 | Automatically the resistance spot weld welding machine of welding quality is monitored |
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| Publication Number | Publication Date |
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| CN205684890U true CN205684890U (en) | 2016-11-16 |
Family
ID=57263914
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620247082.4U Expired - Fee Related CN205684890U (en) | 2016-03-26 | 2016-03-26 | Automatically the resistance spot weld welding machine of welding quality is monitored |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689876A (en) * | 2016-03-26 | 2016-06-22 | 广州微点焊设备有限公司 | Resistance spot welding machine capable of automatically monitoring welding quality |
| CN110587094A (en) * | 2019-08-16 | 2019-12-20 | 广州微点焊设备有限公司 | Automatic spot welding equipment for micro-resistance welding and intelligent spot welding equipment for micro-resistance welding |
| CN111515507A (en) * | 2020-03-27 | 2020-08-11 | 广州微点焊设备有限公司 | Micro resistance welding spot welding equipment |
-
2016
- 2016-03-26 CN CN201620247082.4U patent/CN205684890U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689876A (en) * | 2016-03-26 | 2016-06-22 | 广州微点焊设备有限公司 | Resistance spot welding machine capable of automatically monitoring welding quality |
| CN105689876B (en) * | 2016-03-26 | 2019-03-26 | 广州微点焊设备有限公司 | The resistance spot weld welding machine of automatic monitoring welding quality |
| CN110587094A (en) * | 2019-08-16 | 2019-12-20 | 广州微点焊设备有限公司 | Automatic spot welding equipment for micro-resistance welding and intelligent spot welding equipment for micro-resistance welding |
| CN110587094B (en) * | 2019-08-16 | 2022-05-10 | 广州微点焊设备有限公司 | Automatic spot welding equipment for micro-resistance welding and intelligent spot welding equipment for micro-resistance welding |
| CN111515507A (en) * | 2020-03-27 | 2020-08-11 | 广州微点焊设备有限公司 | Micro resistance welding spot welding equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 Termination date: 20190326 |