CN205464726U - Antiseized even circuit of welding rod of contravariant welding machine - Google Patents
Antiseized even circuit of welding rod of contravariant welding machine Download PDFInfo
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- CN205464726U CN205464726U CN201620264883.1U CN201620264883U CN205464726U CN 205464726 U CN205464726 U CN 205464726U CN 201620264883 U CN201620264883 U CN 201620264883U CN 205464726 U CN205464726 U CN 205464726U
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Abstract
The utility model discloses an antiseized even circuit of welding rod of contravariant welding machine, its characterized in that: including voltage feedback end, detection control module, triode Q1, the triode Q2 who is used for feeding back welding machine output voltage, it is equipped with the level output end to detect control module, output high level when the level output end is used for the welding machine output voltage of voltage feedback end feedback to be 0V, the level output end divides two tunnel outputs, exports triode Q1's base all the way to through resistance R7 zener diode, and another way exports triode Q2's base to through resistance R9. Cause the short circuit in case take place the welding rod with the work piece adhesion, the output voltage of welding machine is 0V, and the high level control triode Q1 of detection control module output of this circuit, Q2 switch on to draw the manual welding of low welding machine to give the operating voltage of ration and contravariant module, make welding machine contravariant module stop work, the no -output, the welding rod was peeled off from the work piece very easily this moment, and the welding rod leaves the work piece does not have the arc of drawing in the twinkling of an eye yet.
Description
Technical field
This utility model relates to the welding rod anti circuit of a kind of inverter type welder.
Background technology
During using inverter arc welding machine to carry out manual welding at present, due to reasons such as striking function are bad, welding current is too small, or operator's lack of skill, operation less notes there will be welding rod and workpiece adhesion.Peel off on workpiece during welding rod because of lasting energising occur that welding rod is rubescent, coating departs from, the phenomenon such as arcing between soldering turret and welding rod, welding procedure can be affected and increase and weld difficulty.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this utility model is to provide the welding rod anti circuit of a kind of inverter type welder, when there is welding rod and workpiece adhesion, and power-off immediately, in order to welding rod separates with workpiece.
This utility model the technical scheme is that for solving its technical problem
A kind of welding rod anti circuit of inverter type welder, including the pressure feedback port for feeding back welding machine output voltage, detection control module, audion Q1, audion Q2, described detection control module is provided with level output end, described level output end is used for output high level when the welding machine output voltage of pressure feedback port feedback is 0V, described level output end divides two-way to export, one tunnel is through the base stage of resistance R7 Zener diode output to audion Q1, and another road is through the base stage of resistance R9 output to audion Q2；The negative pole of described Zener diode connects level output end, the base stage of positive pole connecting triode Q1；Described level output end is also associated with charging capacitor C3, and the positive pole of charging capacitor C3 connects level output end, minus earth；The go-and-retum of described resistance R7 connects the resistance R8 and diode D1 having series connection, and the positive pole of described diode D1 connects charging capacitor C3 positive pole, and negative pole is connected with resistance R8, and the resistance that the resistance of resistance R8 is less than resistance R7；The colelctor electrode of described audion Q1 connects B outfan, and described B outfan is for dragging down the running voltage of welding machine inverter；The colelctor electrode of described audion Q2 connects A outfan, and the output voltage of described A outfan is for dragging down the voltage swing of welding machine Setting signal.
Further, described detection control module includes operational amplifier, the outfan of described operational amplifier is level output end, the in-phase input end of described operational amplifier connects positive supply one, inverting input connects pressure feedback port, described pressure feedback port connects positive power source terminal two, and the output voltage of described positive power source terminal two is higher than the output voltage of positive supply one；Described welding machine output voltage connects pressure feedback port through the pin one of socket CON1, pin two ground connection of socket CON1.
Further, the output voltage of described positive supply one is 12V, and the output voltage of positive supply two is 24V.
Further, the model of described operational amplifier is TLO82.
Further, described audion Q1, audion Q2 are NPN audion.
The beneficial effects of the utility model are: welding rod anti circuit of the present utility model, welding rod and workpiece adhesion is once occurred to cause short circuit, the output voltage of welding machine is 0V, detection control module output high level controls audion Q1, Q2 conducting, thus drag down manual welding specified rate and the running voltage of inversion module of welding machine, make welding machine inversion module quit work, without output, now welding rod is easy to from workpiece peel off, it is to avoid welding rod is rubescent, coating departs from, the phenomenon such as arcing between soldering turret and welding rod.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, the utility model is described in further detail.
Fig. 1 is the circuit theory schematic diagram of the present invention.
Detailed description of the invention
With reference to Fig. 1, the welding rod anti circuit of a kind of inverter type welder of the present utility model, including the pressure feedback port for feeding back welding machine output voltage, detection control module, audion Q1, audion Q2.
Described detection control module is provided with level output end, described level output end is used for output high level when the welding machine output voltage of pressure feedback port feedback is 0V, in the present embodiment, described detection control module includes that operational amplifier U1, the model of described operational amplifier U1 are TLO82；The outfan of described operational amplifier U1 is level output end, and the in-phase input end of described operational amplifier U1 connects+12V power supply, and inverting input connects pressure feedback port.
The output voltage of welding machine is exported to pressure feedback port, pin two ground connection of socket CON1 by the pin one of socket CON1, and it is+24V power supply that described pressure feedback port has output voltage by resistance R12 connection.
The level output end of operational amplifier divides two-way to export, and a road is through the base stage of resistance R7, Zener diode D2 output to audion Q1, and another road is through the base stage of resistance R9 output to audion Q2.The negative pole of described Zener diode D2 connects level output end, the base stage of positive pole connecting triode Q1；Described level output end also connects through electricity R7 has charging capacitor C3, the positive pole of charging capacitor C3 to connect level output end, minus earth；The go-and-retum of described resistance R7 connects the resistance R8 and diode D1 having series connection, and the positive pole of described diode D1 connects charging capacitor C3 positive pole, and negative pole is connected with resistance R8, and the resistance that the resistance of resistance R8 is less than resistance R7；The colelctor electrode of described audion Q1 connects B outfan, and described B outfan is for dragging down the running voltage of welding machine inverter；The colelctor electrode of described audion Q2 connects A outfan, and the output voltage of described A outfan is for dragging down the voltage swing of welding machine Setting signal.
Described audion Q1, audion Q2 are NPN audion.
The operation principle of this circuit is: the output short-circuit when welding rod and workpiece stick together, and Voltage Feedback is essentially 0V, operational amplifier U1 and exports high level, and audion Q2 turns on, and A point current potential is pulled low, and specified rate now reduces, and output reduces；Charging capacitor C3 is charged by resistance R7 by the high level of operational amplifier U1 output simultaneously, and after several seconds, charging voltage turns on higher than the breakdown reverse voltage of Zener diode, audion Q1, and B point current potential is to 0, and inverter quits work, without output.Just control the inverter power-off of welding machine due to moment of sticking together at welding rod and workpiece, therefore welding rod is easy to from workpiece peel off, it is to avoid welding rod is rubescent, coating departs from, the phenomenon such as arcing between soldering turret and welding rod.
When welding rod leaves workpiece, Voltage Feedback point voltage raises, operational amplifier U1 output low level because resistance R12 connects+24V power supply, and audion Q2 ends, and specified rate recovers set amount；Charging capacitor C3 is little by resistance R8(resistance simultaneously) quickly discharge, audion Q1 ends, and B point current potential is not pulled low, and inverter is resumed work, and can continue welding job.
The above, preferred embodiment the most of the present utility model, this utility model is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection domain of the present utility model.
Claims (5)
1. the welding rod anti circuit of an inverter type welder, it is characterized in that: include the pressure feedback port for feeding back welding machine output voltage, detection control module, audion Q1, audion Q2, described detection control module is provided with level output end, described level output end is used for output high level when the voltage of pressure feedback port feedback is 0V, described level output end divides two-way to export, one tunnel is through the base stage of resistance R7 Zener diode output to audion Q1, and another road is through the base stage of resistance R9 output to audion Q2；
The negative pole of described Zener diode connects level output end, the base stage of positive pole connecting triode Q1；
Described level output end is also associated with charging capacitor C3, and the positive pole of charging capacitor C3 connects level output end, minus earth；The go-and-retum of described resistance R7 connects the resistance R8 and diode D1 having series connection, and the positive pole of described diode D1 connects charging capacitor C3 positive pole, and negative pole is connected with resistance R8, and the resistance that the resistance of resistance R8 is less than resistance R7；
The colelctor electrode of described audion Q1 connects B outfan, and described B outfan is for dragging down the running voltage of welding machine inverter；The colelctor electrode of described audion Q2 connects A outfan, and the output voltage of described A outfan is for dragging down the voltage swing of welding machine Setting signal.
The welding rod anti circuit of a kind of inverter type welder the most according to claim 1, it is characterized in that: described detection control module includes operational amplifier, the outfan of described operational amplifier is level output end, the in-phase input end of described operational amplifier connects positive supply one, inverting input connects pressure feedback port, described pressure feedback port connects positive power source terminal two, and the output voltage of described positive power source terminal two is higher than the output voltage of positive supply one；Described welding machine output voltage connects pressure feedback port through the pin one of socket CON1, pin two ground connection of socket CON1.
The welding rod anti circuit of a kind of inverter type welder the most according to claim 2, it is characterised in that: the output voltage of described positive supply one is 12V, and the output voltage of positive supply two is 24V.
The welding rod anti circuit of a kind of inverter type welder the most according to claim 2, it is characterised in that: the model of described operational amplifier is TLO82.
The welding rod anti circuit of a kind of inverter type welder the most according to claim 1, it is characterised in that: described audion Q1, audion Q2 are NPN audion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620264883.1U CN205464726U (en) | 2016-04-01 | 2016-04-01 | Antiseized even circuit of welding rod of contravariant welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620264883.1U CN205464726U (en) | 2016-04-01 | 2016-04-01 | Antiseized even circuit of welding rod of contravariant welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205464726U true CN205464726U (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620264883.1U Expired - Fee Related CN205464726U (en) | 2016-04-01 | 2016-04-01 | Antiseized even circuit of welding rod of contravariant welding machine |
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| CN (1) | CN205464726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862725A (en) * | 2017-01-19 | 2017-06-20 | 上海广为焊接设备有限公司 | The anti-stick circuit of inverter type welder |
-
2016
- 2016-04-01 CN CN201620264883.1U patent/CN205464726U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862725A (en) * | 2017-01-19 | 2017-06-20 | 上海广为焊接设备有限公司 | The anti-stick circuit of inverter type welder |
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Legal Events
| 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 |
Granted publication date: 20160817 Termination date: 20210401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |