CN201913354U - Control system for DC (Direct Current) pulse argon arc welding - Google Patents
Control system for DC (Direct Current) pulse argon arc welding Download PDFInfo
- Publication number
- CN201913354U CN201913354U CN2010207007579U CN201020700757U CN201913354U CN 201913354 U CN201913354 U CN 201913354U CN 2010207007579 U CN2010207007579 U CN 2010207007579U CN 201020700757 U CN201020700757 U CN 201020700757U CN 201913354 U CN201913354 U CN 201913354U
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- circuit
- control circuit
- welding
- argon arc
- control system
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Abstract
The utility model relates to a control system for DC (Direct Current) pulse argon arc welding, belonging to the technical field of a welding machine and solving the problem of incapability of completely controlling the on/off of a high-frequency control circuit when a welding torch switch is loosened during using a current slow-dropping function by the traditional control system for the DC pulse argon arc welding. The control system for the DC pulse argon arc welding comprises an inverting circuit, a power supply rectifying circuit connected with the inverting circuit, an intermediate frequency rectifying circuit and a PWM (Pulse Width Modulation) circuit, wherein a high-frequency transformer is connected between the inverting circuit and the intermediate frequency rectifying circuit, the intermediate frequency rectifying circuit and the PWM circuit are connected through a control circuit, the control circuit comprises the high-frequency control circuit and the welding torch switch, and the welding torch switch is connected with the high-frequency control circuit and can control the working of the high-frequency control circuit. The control system for the DC pulse argon arc welding has the advantages of simplicity in operation, the capability of completely controlling the on/off of the high-frequency control circuit when the welding torch switch is loosened for current slow-dropping and the avoidance of a bad welding workpiece or damage to the eye caused by misoperation.
Description
Technical field
The utility model belongs to the welding machine technical field, refers in particular to a kind of control system of DC pulse argon arc welding.
Background technology
At present, generally all have the slow function of falling of electric current in the control system of its DC pulse argon arc welding, when the user uses that electric current is slow to fall, unclamp welding torch switch after-current and slowly descend, reduce to minimum current interruption then and finish welding.There is some problems: after unclamping the welding torch switch, fall function and do not reduce to when minimum when electric current is slow, satisfied the welding work pieces that breaks away under the situation of welding, its high frequency control circuit still can fall the time continuous operation with delaying, or when the unripe welding of user, and false touch is moving to the welding torch switch, this moment, high frequency control circuit was in work, welding torch and welding work pieces distance is prepared appropriately will light electric arc suddenly, welds bad workpiece easily or eyes are caused damage.
Summary of the invention
The purpose of this utility model provides a kind of when using that electric current is slow to fall function, unclamps the welding torch switch and can turn-off the control system that high frequency control circuit makes its idle DC pulse argon arc welding fully.
The purpose of this utility model is achieved in that a kind of control system of DC pulse argon arc welding, comprise inverter circuit and the power rectifier circuit that is connected with inverter circuit, intermediate frequency rectification circuit and pwm circuit, also be connected with high frequency transformer between described inverter circuit and the intermediate frequency rectification circuit, be connected by control circuit between described intermediate frequency rectification circuit and the pwm circuit, it is characterized in that: described control circuit comprises high frequency control circuit and welding torch switch, described welding torch switch be connected with high frequency control circuit and the work that can control high frequency control circuit whether.
Above-mentioned high frequency control circuit comprises voltage sample circuit.
The outstanding compared to existing technology advantage of the utility model is:
1, the utility model can protect the continuous operation of welder high-frequency control circuit not damage;
2, the utility model can not weld bad workpiece and can starting the arc work not take place suddenly and damage eyes under the situation of maloperation;
3, the utility model can satisfy the welding demand behind the dispatch air;
3, the utility model is simple to operate, precise control.
Description of drawings
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is the circuit diagram of control circuit in the utility model.
Among the figure, 1, high frequency control circuit; 2, voltage sample circuit; 3, welding torch switch.
The specific embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-2:
The control system of this DC pulse argon arc welding, comprise inverter circuit and the power rectifier circuit that is connected with inverter circuit, intermediate frequency rectification circuit and pwm circuit, also be connected with high frequency transformer between described inverter circuit and the intermediate frequency rectification circuit, be connected by control circuit between described intermediate frequency rectification circuit and the pwm circuit, described control circuit comprises high frequency control circuit 1 and welding torch switch 3, described welding torch switch 3 be connected with high frequency control circuit 1 and the work that can control high frequency control circuit 1 whether.
Above-mentioned high frequency control circuit 1 comprises voltage sample circuit 2.
Power rectifier circuit is connected with extraneous power supply, by intermediate frequency rectification circuit output services voltage, during work, connect power supply, turn on the power switch, machine begins stand-by operation, and soldering tip is pressed welding torch switch 3 when welding work pieces 2mm, the output floating voltage,, boost behind the circuit working to high frequency control circuit 1 through voltage sampling, puncture argon gas and light electric arc, high frequency control circuit 1 quits work, and sets size of current according to the user and begins welding.Welding torch switch 3 is unclamped in welding when finishing, finish welding, and electric arc turn-offs.
When the user uses that electric current is slow to fall function, unclamp welding torch switch 3 and turn-off high frequency control circuit 1 simultaneously, electric current slowly descends, and reduces to minimum current interruption then and finishes welding.No matter electric current slow fall to have do not reduce to minimum or the user has when not being ready to weld, false touch is moving does not work to welding torch switch 3 its high frequency control circuits 1, has satisfied the welding requirements of user to various situations fully.
The foregoing description is preferred embodiment of the present utility model only, is not to limit protection domain of the present utility model according to this, so: all equivalences of doing according to structure of the present utility model, shape, principle change, and all should be covered by within the protection domain of the present utility model.
Claims (2)
1. the control system of a DC pulse argon arc welding, comprise inverter circuit and the power rectifier circuit that is connected with inverter circuit, intermediate frequency rectification circuit and pwm circuit, also be connected with high frequency transformer between described inverter circuit and the intermediate frequency rectification circuit, be connected by control circuit between described intermediate frequency rectification circuit and the pwm circuit, it is characterized in that: described control circuit comprises high frequency control circuit and welding torch switch, described welding torch switch be connected with high frequency control circuit and the work that can control high frequency control circuit whether.
2. the control system of a kind of DC pulse argon arc welding according to claim 1 is characterized in that: described high frequency control circuit comprises voltage sample circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010207007579U CN201913354U (en) | 2010-12-30 | 2010-12-30 | Control system for DC (Direct Current) pulse argon arc welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010207007579U CN201913354U (en) | 2010-12-30 | 2010-12-30 | Control system for DC (Direct Current) pulse argon arc welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201913354U true CN201913354U (en) | 2011-08-03 |
Family
ID=44413170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010207007579U Expired - Fee Related CN201913354U (en) | 2010-12-30 | 2010-12-30 | Control system for DC (Direct Current) pulse argon arc welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201913354U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773585A (en) * | 2012-08-10 | 2012-11-14 | 深圳市瑞凌实业股份有限公司 | Circuit for reducing high frequency and high pressure of argon arc welding and method thereof |
| CN111971140A (en) * | 2018-04-20 | 2020-11-20 | 松下知识产权经营株式会社 | Welding torch and arc welding device using same |
-
2010
- 2010-12-30 CN CN2010207007579U patent/CN201913354U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773585A (en) * | 2012-08-10 | 2012-11-14 | 深圳市瑞凌实业股份有限公司 | Circuit for reducing high frequency and high pressure of argon arc welding and method thereof |
| CN102773585B (en) * | 2012-08-10 | 2016-08-17 | 深圳市瑞凌实业股份有限公司 | A kind of circuit reducing argon arc welding high-frequency and high-voltage and method thereof |
| CN111971140A (en) * | 2018-04-20 | 2020-11-20 | 松下知识产权经营株式会社 | Welding torch and arc welding device using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20121230 |