CN109648174A - The striking method of automatic welding system - Google Patents
The striking method of automatic welding system Download PDFInfo
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- CN109648174A CN109648174A CN201910122032.1A CN201910122032A CN109648174A CN 109648174 A CN109648174 A CN 109648174A CN 201910122032 A CN201910122032 A CN 201910122032A CN 109648174 A CN109648174 A CN 109648174A
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- tungsten electrode
- welding
- striking
- workpiece
- current
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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
- B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
- B23K9/067—Starting the arc
-
- 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
- B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
- B23K9/067—Starting the arc
- B23K9/0671—Starting the arc by means of brief contacts between the electrodes
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- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention provides a kind of striking methods of automatic welding system, the automatic welding system includes providing the source of welding current of voltage and current to the welding gun of butt welding workpiece, Butt welding gun, tungsten electrode is installed on the welding gun, the described method includes: connection welding gun connects workpiece to source of welding current anode to source of welding current cathode；It adjusts tungsten electrode and docks the position of workpiece, make to be spaced apart from each other between the two；The direction for controlling tungsten electrode towards docking workpiece is mobile, and samples simultaneously to the voltage between tungsten electrode and docking workpiece；Stop voltage V when sampled voltage drops to1When, stop the movement of tungsten electrode；Striking analog quantity voltage V is applied to the source of welding current2, so that forming striking electric current I between tungsten electrode and docking workpiece1；Mobile tungsten electrode makes tungsten electrode leave docking workpiece gradually with elongating arc；Welding analog amount voltage V is applied to the source of welding current3, so that forming welding current I between tungsten electrode and docking workpiece2, and start to weld.
Description
Technical field
The invention belongs to a kind of striking methods of industrial automation more particularly to automatic welding system.
Background technique
In automatic welding system, the success rate of striking is not often high.This is because the high frequency starting the arc is to tungsten electrode and workpiece
Between requirement for height it is higher, if tungsten electrode opposite piece is higher, the more difficult success of striking, if tungsten electrode opposite piece is lower, again
Influence whether that welding procedure or even tungsten electrode can also be easy to touch workpiece, it is thus typically necessary to repeatedly adjust tungsten electrode and workpiece it
Between position could striking success.In addition requirement of the high-frequency arc strike to protective gas is relatively high, when carrying out argon tungsten-arc welding, needs
Add hydrogen to carry out welding protection to tungsten electrode and workpiece using argon gas or argon, and use argon add hydrogen as protection gas when, high frequency draws
The success rate of arc will be greatly reduced.
In addition, can also have some problems when argon tungsten-arc welding during promoting striking, be in contact in tungsten electrode and workpiece
And during short circuit, tungsten electrode scaling loss can be made serious if short circuit current is bigger, if misoperation, tungsten electrode can enter in weld seam and draw
Tungsten inclusion is played, causes the material of weld seam impure.
Therefore, it is necessary to design a kind of striking method of automatic welding system for being applicable to argon arc welding.
Summary of the invention
One of in order to solve the above problem, it is described automatic the present invention provides a kind of striking method of automatic welding system
Changing welding system includes providing the source of welding current of voltage and current, the welding gun to the welding gun of butt welding workpiece, Butt welding gun
On tungsten electrode is installed, which comprises connection welding gun connects workpiece to source of welding current anode to source of welding current cathode；Adjustment
The position of tungsten electrode and docking workpiece, makes to be spaced apart from each other between the two；The direction for controlling tungsten electrode towards docking workpiece is mobile and right simultaneously
Voltage between tungsten electrode and docking workpiece is sampled；Stop voltage V when sampled voltage drops to1When, stop the movement of tungsten electrode；
Striking analog quantity voltage V is applied to the source of welding current2, so that forming striking electric current I between tungsten electrode and docking workpiece1；Mobile tungsten electrode makes
It obtains tungsten electrode and leaves docking workpiece gradually with elongating arc；Welding analog amount voltage V is applied to the source of welding current3, so that tungsten electrode and right
Meet formation welding current I between workpiece2, and start to weld.
As a further improvement of the present invention, the automatic welding system includes the arc length balladeur train for fixing welding gun,
The arc length balladeur train drives welding gun to be moved.
As a further improvement of the present invention, the tungsten electrode is in moving process at the uniform velocity to carry out.
As a further improvement of the present invention, the step " direction of control tungsten electrode towards docking workpiece is mobile " includes: control
Arc length balladeur train processed drives tungsten electrode mobile with speed θ, 0 < θ < 100mm/min.
As a further improvement of the present invention, " adjustment tungsten electrode and the position for docking workpiece, make phase between the two to the step
Mutually interval " specifically includes: tungsten electrode being placed on to the surface of docking workpiece, and is spaced apart from each other；Step " controls tungsten electrode towards docking work
The direction of part is mobile " it is that control tungsten electrode moves down；Step " mobile tungsten electrode makes tungsten electrode gradually leave docking workpiece " is as
Control tungsten electrode moves up.
As a further improvement of the present invention, the automatic welding system further includes sample circuit, described to use circuit
Anode connect the workpiece, the cathode using circuit connects welding gun, and sample circuit exports sampled voltage.
As a further improvement of the present invention, the step " stops voltage V when sampled voltage drops to1When, stop tungsten electrode
Movement " in, 0 < V1< 1V.
As a further improvement of the present invention, the automatic welding system includes programmable controller, and the step is " right
The source of welding current applies striking analog quantity voltage V2, so that forming striking electric current I between tungsten electrode and docking workpiece1" specifically include: institute
It states programmable controller and confirms the minimum current so that electric arc foundation, and be denoted as striking electric current I1；The programmable controller meter
It calculates and obtains source of welding current output striking electric current I1The striking analog quantity voltage V of Shi Suoxu2；The programmable controller is by striking
Analog quantity voltage V2Numerical value export to the source of welding current；The source of welding current exports striking electric current I1。
As a further improvement of the present invention, the automatic welding system includes programmable controller, and the step is " right
The source of welding current applies welding analog amount voltage V3, so that forming welding current I between tungsten electrode and docking workpiece2" specifically include:
The programmable controller confirms the size of current that can be welded, and is denoted as welding current I2；
The programmable controller calculates and obtains source of welding current output welding current I2The welding analog amount electricity of Shi Suoxu
Press V3；
The programmable controller is by welding analog amount voltage V3Numerical value export to the source of welding current；
The source of welding current exports welding current I2。
As a further improvement of the present invention, " source of welding current exports striking electric current I to the step1" and step " mobile tungsten
Pole make tungsten electrode gradually leave docking workpiece " between include: to detect that electric current or electric current are formed between tungsten electrode and workpiece to be reached
I1；Judge striking success；Striking pass signal is sent to programmable controller；Programmable controller controls tungsten electrode.
The utility model has the advantages that the present invention is by judging tungsten electrode to the voltage sample between tungsten electrode and docking workpiece and docking workpiece
No contact simultaneously carries out striking, and also continues to judge the formation of striking electric current to judge whether striking succeeds, to fully achieve
The automation control of striking does not need manually to be operated and judged, improves the success rate of striking, but also weld seam is more smart
Carefully, the stability of argon arc welding is improved.
Detailed description of the invention
Fig. 1 is the flow chart of the striking method of automatic welding system of the present invention.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
Present invention discloses a kind of striking method of automatic welding system, the automatic welding system includes to weld
The welding gun of docking workpiece, the source of welding current of Butt welding gun offer voltage and current are provided, tungsten electrode is installed on the welding gun.
It is common, during automatic welding, in order to improve arcing initiation success rate, therefore require certain striking side
Method, there are two types of the mode of striking is usual: contact starting and contactless striking.Contacting ignition arc is divided into three phases again: short circuit,
Separation and arcing, i.e. tungsten electrode and workpiece are first connected to two poles, and tungsten electrode first contacts with workpiece and causes short circuit, is then lifted, electric arc
Just formed between tungsten electrode and workpiece.The control of this contact starting is very high to the operation requirement of welder, also because it is difficult
It is high to spend coefficient, therefore is also usually applied in the field that manual welding or hand and machine combine, without in argon tungsten-arc welding field
Middle use.
Therefore, the present invention is a kind of striking method of automatic welding system that can be used for argon arc welding, specifically, the side
Method includes:
Welding gun is connected to source of welding current cathode, connects workpiece to source of welding current anode；
It adjusts tungsten electrode and docks the position of workpiece, make to be spaced apart from each other between the two；
The direction for controlling tungsten electrode towards docking workpiece is mobile, and adopts simultaneously to the voltage between tungsten electrode and accumulation workpiece
Sample；
Stop voltage V when sampled voltage drops to1When, stop the movement of tungsten electrode；
Striking analog quantity voltage V is applied to the source of welding current2, so that forming striking electric current I between tungsten electrode and docking workpiece1；
Mobile tungsten electrode makes tungsten electrode leave docking workpiece gradually with elongating arc；
Welding analog amount voltage V is applied to the source of welding current3, so that forming welding current I between tungsten electrode and docking workpiece2, and
Start to weld.
Therefore, by tungsten electrode and docking workpiece between voltage sample, then can clearly judge tungsten electrode and
Docking workpiece is in contact opportunity short-circuit between i.e. tungsten electrode and docking workpiece, and is operable so that tungsten electrode slightly to tungsten electrode immediately
Micro- separate workpiece, and high voltage is to form electric arc.To change the state of tungsten electrode by the feedback of voltage, in argon arc welding
On can also form accurate contactless automatic welding, the weld seam of formation is more fine good-looking, also improve striking at
Power has prevented the risk factor during manual welding.
The automatic welding system includes the arc length balladeur train for fixing welding gun, and the arc length balladeur train drives welding gun to carry out
It is mobile.The welding gun is fixed on arc length balladeur train, thus tungsten electrode also corresponds to be fixed on arc length balladeur train, and arc length balladeur train can drive
Tungsten electrode is accurately moved.At step " adjustment tungsten electrode and the position for docking workpiece, make to be spaced apart from each other between the two ", use
Tungsten electrode as far as possible close to workpiece, but is not still in contact by arc length balladeur train.Arc length balladeur train to the control of speed and distance all
Very precisely, it can further improve the safety of whole system stability and welding method.
As described above, the arc length balladeur train can drive tungsten electrode in moving process at the uniform velocity to carry out, then step " control
The direction of tungsten electrode towards docking workpiece is mobile " it include: that control arc length balladeur train drives tungsten electrode with speed θ movement, 0 < θ < 100mm/
min.As it can be seen that the speed be it is very slow, inherently less due to the distance between tungsten electrode and docking workpiece, the speed
Must be very small, it can just prevent tungsten electrode from immediately contacting with docking workpiece and cause tungsten electrode to enter weld seam quickly and tungsten inclusion is caused to be made
At defect.
And during striking, " mobile tungsten electrode makes tungsten electrode leave docking workpiece gradually with elongating arc " is needed, this
The speed of arc length balladeur train is also not easy too fast in one step, and rate when rate and tungsten electrode are close to docking workpiece is similar, but side
To opposite.During striking, also striking can be easy to cause unsuccessful if mobile too fast of tungsten electrode.
Specifically, the tungsten electrode is generally positioned at the surface of docking workpiece, thus, the step " adjustment tungsten electrode and right
The position for connecing workpiece makes to be spaced apart from each other between the two " it specifically includes: tungsten electrode is placed on to the surface of docking workpiece, and mutually
Interval.And step " direction of control tungsten electrode towards docking workpiece is mobile " is that control tungsten electrode moves down, " mobile tungsten electrode makes step
Obtain tungsten electrode and gradually leave docking workpiece " it is that control tungsten electrode moves up.Certainly, this improves behaviour also for striking rate is improved
Make space.Alternatively, the relative position of the tungsten electrode and docking workpiece uses other laying methods, then the model allowed in operating space
Under enclosing, the purpose of the present invention also can reach.
It is as described above, it is needing to be monitored sampling, institute to the voltage between tungsten electrode and workpiece in real time in above-mentioned steps
The anode for stating sample circuit connects the workpiece, and the cathode of the sample circuit connects welding gun, and sample circuit exports sampled voltage
To programmable controller.Specifically, the anode of sample circuit is connected to tungsten electrode, mainly the voltage between tungsten electrode and workpiece is carried out
Sampling judges the opportunity that the two is in contact.
Specifically, the step " stops voltage V when sampled voltage drops to1When, stop the movement of tungsten electrode " in, 0 < V1<
1V.That is, when sampled voltage drops to V1When, that is, judge that tungsten electrode and workpiece contact with each other, and in the present embodiment, due to considering
To workpiece and the Resistance Influence of tungsten electrode itself, therefore stopping voltage V1Also not just for 0, but as 1V hereinafter, specifically,
It can be calculated according to the actual situation.
Certainly, in order to realize above-mentioned automatic welding, then the automatic welding system in present embodiment includes that can compile
Range controller is using as control device.Programmable controller is also known as PLC, is that one kind is set exclusively for applying in industrial settings
The electronic device of the digital operation of meter.It is patrolled using the memory that can be programmed for storing execution inside it
The instruction of the operations such as operation, sequential operation, timing, counting and arithmetical operation is collected, and digital or analog input can be passed through
And output, control various types of mechanical or production processes.PLC and its related peripheral equipment all should be by being easy to control with industry
System processed forms an entirety, is easy to extend the principle of its function and designs.
Therefore, use programmable controller to above-mentioned arc length balladeur train, welding in the automatic welding system of present embodiment
Power supply, sample circuit etc. are controlled and are monitored, and carry out summarizing and judging for data, to guarantee entire automatic welding system
Steady operation.
Specifically, the step " applies striking analog quantity voltage V to the source of welding current2, so that between tungsten electrode and docking workpiece
Form striking electric current I1" specifically include:
The programmable controller confirms the minimum current so that electric arc foundation, and is denoted as striking electric current I1；
The programmable controller calculates and obtains source of welding current output striking electric current I1The striking analog quantity electricity of Shi Suoxu
Press V2；
The programmable controller is by striking analog quantity voltage V2Numerical value export to the source of welding current；
The source of welding current exports striking electric current I1。
As described above, the programmable controller first carries out calculating judgement to the electric current that can form electric arc, is determined as drawing
Arc current I1Afterwards, then to striking electric current I can be formed1Striking analog quantity voltage V2It is calculated, in control source of welding current output
Striking analog quantity voltage V2.Certainly, the striking analog quantity voltage V2Value be naturally larger than the stopping voltage V1.And at this
In embodiment, I1For 10A.
In addition, the programmable controller can also carry out the electric current of welding to calculate preparatory calculating judgement, specifically, institute
It states step and " welding analog amount voltage V is applied to the source of welding current3, so that forming welding current I between tungsten electrode and docking workpiece2" tool
Body includes: that the programmable controller confirms the size of current that can be welded, and is denoted as welding current I2；The programmable control
Device processed calculates and obtains source of welding current output welding current I2The welding analog amount voltage V of Shi Suoxu3；The programmable controller
By welding analog amount voltage V3Numerical value export to the source of welding current；The source of welding current exports welding current I2。
Certainly, the programmable controller also continues to control sample circuit, the source of welding current in arc process.Tool
Body, " source of welding current exports striking electric current I to above-mentioned steps1" and step " mobile tungsten electrode makes tungsten electrode gradually leave docking workpiece "
Between include:
Detect that electric current or electric current are formed between tungsten electrode and workpiece reaches I1；
Judge striking success；
Striking pass signal is sent to programmable controller；
Programmable controller controls tungsten electrode.
Sampling power supply is in real time monitored the electric current between tungsten electrode and workpiece, if being formed with electric current between tungsten electrode and workpiece
Or electric current reaches I1It can then be judged as striking success.Programmable controller then controls tungsten electrode, in following step
In, then electric arc is pulled open by control arc length balladeur train and is welded.Certainly, at the same control the source of welding current continue improve voltage reach weldering
Meet analog quantity voltage V3, and welding current I is formed between tungsten electrode and docking workpiece2.Certainly, welding analog amount voltage V3Also big
In striking analog quantity voltage V2, welding current I2Also greater than striking electric current I1。
In conclusion the automatic welding system in the present invention is by using programmable controller to arc length balladeur train, welding
The further control of power supply, sample circuit can be improved the stability of automatic welding system, and use contactless striking side
Method improves the arcing initiation success rate and weldquality of argon arc welding.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art
The other embodiments that member is understood that.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope that is bright, being not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention or change
More it should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of striking method of automatic welding system, the automatic welding system includes the weldering to butt welding workpiece
Rifle, Butt welding gun provide the source of welding current of voltage and current, are equipped with tungsten electrode on the welding gun, which is characterized in that the method packet
It includes:
Welding gun is connected to source of welding current cathode, connects workpiece to source of welding current anode；
It adjusts tungsten electrode and docks the position of workpiece, make to be spaced apart from each other between the two；
The direction for controlling tungsten electrode towards docking workpiece is mobile, and samples simultaneously to the voltage between tungsten electrode and docking workpiece；
Stop voltage V when sampled voltage drops to1When, stop the movement of tungsten electrode；
Striking analog quantity voltage V is applied to the source of welding current2, so that forming striking electric current I between tungsten electrode and docking workpiece1；
Mobile tungsten electrode makes tungsten electrode leave docking workpiece gradually with elongating arc；
Welding analog amount voltage V is applied to the source of welding current3, so that forming welding current I between tungsten electrode and docking workpiece2, and start
Welding.
2. striking method according to claim 1, which is characterized in that the automatic welding system includes for fixed weldering
The arc length balladeur train of rifle, the arc length balladeur train drive welding gun to be moved.
3. striking method according to claim 2, which is characterized in that the tungsten electrode in moving process at the uniform velocity into
Row.
4. striking method according to claim 3, which is characterized in that the step " controls tungsten electrode towards the side of docking workpiece
To movement " it include: that control arc length balladeur train drives tungsten electrode mobile with speed θ, 0 < θ < 100mm/min.
5. striking method according to claim 1, which is characterized in that step " adjustment tungsten electrode and the position for docking workpiece
Set, make to be spaced apart from each other between the two " it specifically includes: tungsten electrode is placed on to the surface of docking workpiece, and is spaced apart from each other；Step
" direction of control tungsten electrode towards docking workpiece is mobile " is that control tungsten electrode moves down；" mobile tungsten electrode makes tungsten electrode gradually to step
Leave docking workpiece " it is that control tungsten electrode moves up.
6. striking method according to claim 1, which is characterized in that the automatic welding system further includes sampling electricity
Road, the anode using circuit connect the workpiece, and the cathode using circuit connects welding gun, sample circuit output sampling
Voltage is to programmable controller.
7. striking method according to claim 6, which is characterized in that the step is " when sampled voltage drops to stopping electricity
Press V1When, stop the movement of tungsten electrode " in, 0 < V1< 1V.
8. striking method according to claim 1, which is characterized in that the automatic welding system includes PLC technology
Device, the step " apply striking analog quantity voltage V to the source of welding current2, so that forming striking electric current between tungsten electrode and docking workpiece
I1" specifically include:
The programmable controller confirms the minimum current so that electric arc foundation, and is denoted as striking electric current I1；
The programmable controller calculates and obtains source of welding current output striking electric current I1The striking analog quantity voltage V of Shi Suoxu2；
The programmable controller is by striking analog quantity voltage V2Numerical value export to the source of welding current；
The source of welding current exports striking electric current I1。
9. striking method according to claim 1, which is characterized in that the automatic welding system includes PLC technology
Device, the step " apply welding analog amount voltage V to the source of welding current3, so that forming welding current between tungsten electrode and docking workpiece
I2" specifically include:
The programmable controller confirms the size of current that can be welded, and is denoted as welding current I2；
The programmable controller calculates and obtains source of welding current output welding current I2The welding analog amount voltage V of Shi Suoxu3；
The programmable controller is by welding analog amount voltage V3Numerical value export to the source of welding current；
The source of welding current exports welding current I2。
10. striking method according to claim 8, which is characterized in that " source of welding current exports striking electric current I to the step1”
Include: between step " mobile tungsten electrode makes tungsten electrode gradually leave docking workpiece "
Detect that electric current or electric current are formed between tungsten electrode and workpiece reaches I1；
Judge striking success；
Striking pass signal is sent to programmable controller；
Programmable controller controls tungsten electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910122032.1A CN109648174B (en) | 2019-02-19 | 2019-02-19 | Arc striking method of automatic welding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910122032.1A CN109648174B (en) | 2019-02-19 | 2019-02-19 | Arc striking method of automatic welding system |
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| Publication Number | Publication Date |
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| CN109648174A true CN109648174A (en) | 2019-04-19 |
| CN109648174B CN109648174B (en) | 2021-04-02 |
Family
ID=66123055
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910122032.1A Active CN109648174B (en) | 2019-02-19 | 2019-02-19 | Arc striking method of automatic welding system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114871534A (en) * | 2022-06-17 | 2022-08-09 | 深圳市佳士科技股份有限公司 | Argon arc welding arc starting lifting control method and device, argon arc welding machine and storage medium |
| CN114985871A (en) * | 2022-06-23 | 2022-09-02 | 深圳市佳士科技股份有限公司 | Arc striking control method and device for alternating current welding machine, welding machine and medium |
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| CN204545665U (en) * | 2015-05-04 | 2015-08-12 | 广州华开电子科技有限公司 | A kind of argon arc welding automatic lifting striking welder |
| CN107866622A (en) * | 2017-12-27 | 2018-04-03 | 张胜男 | A kind of new TIG welds built-in lifting arc strike control device |
| CN207223166U (en) * | 2017-09-13 | 2018-04-13 | 张胜男 | A kind of new TIG weldering external lifting arc strike control devices |
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2019
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204545665U (en) * | 2015-05-04 | 2015-08-12 | 广州华开电子科技有限公司 | A kind of argon arc welding automatic lifting striking welder |
| CN207223166U (en) * | 2017-09-13 | 2018-04-13 | 张胜男 | A kind of new TIG weldering external lifting arc strike control devices |
| CN107866622A (en) * | 2017-12-27 | 2018-04-03 | 张胜男 | A kind of new TIG welds built-in lifting arc strike control device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114871534A (en) * | 2022-06-17 | 2022-08-09 | 深圳市佳士科技股份有限公司 | Argon arc welding arc starting lifting control method and device, argon arc welding machine and storage medium |
| CN114871534B (en) * | 2022-06-17 | 2023-06-02 | 深圳市佳士科技股份有限公司 | Argon arc welding lifting arc striking control method and device, argon arc welding machine and storage medium |
| CN114985871A (en) * | 2022-06-23 | 2022-09-02 | 深圳市佳士科技股份有限公司 | Arc striking control method and device for alternating current welding machine, welding machine and medium |
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| CN109648174B (en) | 2021-04-02 |
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