CN203526773U - Welding wire molten globule removing circuit of carbon dioxide gas shielded welding machine - Google Patents
Welding wire molten globule removing circuit of carbon dioxide gas shielded welding machine Download PDFInfo
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- CN203526773U CN203526773U CN201320638572.3U CN201320638572U CN203526773U CN 203526773 U CN203526773 U CN 203526773U CN 201320638572 U CN201320638572 U CN 201320638572U CN 203526773 U CN203526773 U CN 203526773U
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- welding wire
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Abstract
The utility model provides a welding wire molten globule removing circuit of a carbon dioxide gas shielded welding machine. The welding wire molten globule removing circuit comprises a resistor R1, one end of the resistor R1 is connected with a power supply VCC, the other end of the resistor R1 is connected with the positive electrode of a diode D1, the negative electrode of the diode D1 is connected with one end of a welding gun switch Ts, and the other end of the welding gun switch Ts is grounded; the positive electrode of the diode D1 is connected with one end of a resistor R2, and the other end of the resistor R2 is connected with one end of a resistor R3, the negative electrode of a diode D2 and the base electrode of an NPN transistor T1; the other end of a resistor R3, the positive electrode of the diode D2 and the emitting electrode of the NPN transistor T1 are grounded; the collector electrode of the NPN transistor T1 is connected with the positive electrode of a voltage-regulator tube ZD1 through a resistor R4; the negative electrode of the voltage-regulator tube ZD1 is connected with the regulating end of an adjustable resistor VR1 and serves as the output end of the welding wire molten globule removing circuit. When welding is finished, the welding wire molten globule removing circuit suitably reduces an output welding voltage, prevents a welding wire molten globule from enlarging, and facilitates next arc striking easily.
Description
Technical field
The utility model relates to the partial circuit of carbon dioxide gas shielded welding machine, is specifically related to the molten ball circuit of expeling welding wire of carbon dioxide gas shielded welding machine.
Background technology
It is a kind of energy-efficient high-quality welding method that carbon dioxide gas arc welding connects technique.Be widely used in all fields of national economy.Carbon dioxide gas arc welding, according to technological requirement, when welding machine finishes, be used than the little welding conditions of normal output weldingvoltage, avoids the molten ball of wire tip excessive, so that next striking is easy.How designing highly reliable electronic control circuit, is the key technology of carbon dioxide welding machine application.
Summary of the invention
The purpose of this utility model is the molten ball circuit of the expeling welding wire that adopts simple and reliable control circuit to realize carbon dioxide gas shielded welding machine; only with a transistor and voltage-stabiliser tube and several resistance element, just realized the technological requirement of carbon dioxide gas arc welding; improve welding quality, increased the reliability of welding machine simultaneously.The technical solution adopted in the utility model is:
The molten ball circuit of expeling welding wire of carbon dioxide gas shielded welding machine, comprising: resistance R 1, and a termination power VCC of resistance R 1, the anode of another terminating diode D1, the negative electrode of diode D1 connects one end of arc welding gun switch Ts, the other end ground connection of arc welding gun switch Ts;
One end of the anode connecting resistance R2 of diode D1, one end of other end connecting resistance R3 of resistance R 2 is, the base stage of the negative electrode of diode D2 and NPN transistor T1; The grounded emitter of the anode of the other end of resistance R 3, diode D2 and NPN transistor T1; The colelctor electrode of NPN transistor T1 connects the anode of voltage-stabiliser tube ZD1 by resistance R 4;
One of adjustable resistance VR2 fixing termination power VCC, another is a stiff end of termination adjustable resistance VR1 fixedly, and any one is connected with two stiff ends in the adjustable side of adjustable resistance VR2; Another of adjustable resistance VR1 be a stiff end of termination adjustable resistance VR3 fixedly, another stiff end ground connection of adjustable resistance VR3, and any one is connected with two stiff ends in the adjustable side of adjustable resistance VR3; The negative electrode of voltage-stabiliser tube ZD1 connects the adjustable side of adjustable resistance VR1 and as expeling welding wire, melts the output of ball circuit.
The utility model has the advantage of the molten ball circuit of expeling welding wire of just having realized carbon dioxide gas shielded welding machine welding process requirement with several minority electrons components and parts, there is the molten ball effect of better expeling welding wire, make its striking easy.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model.
Fig. 2 is the molten ball circuit control action sequential chart of the expeling welding wire of the utility model carbon dioxide welding machine.
The specific embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Figure 1: a kind of molten ball circuit of expeling welding wire of carbon dioxide gas shielded welding machine, comprise: resistance R 1, a termination power VCC of resistance R 1, the anode of another terminating diode D1, the negative electrode of diode D1 connects one end of arc welding gun switch Ts, the other end ground connection of arc welding gun switch Ts;
One end of the anode connecting resistance R2 of diode D1, one end of other end connecting resistance R3 of resistance R 2 is, the base stage of the negative electrode of diode D2 and NPN transistor T1; The grounded emitter of the anode of the other end of resistance R 3, diode D2 and NPN transistor T1; The colelctor electrode of NPN transistor T1 connects the anode of voltage-stabiliser tube ZD1 by resistance R 4;
One of adjustable resistance VR2 fixing termination power VCC, another is a stiff end of termination adjustable resistance VR1 fixedly, and any one is connected with two stiff ends in the adjustable side of adjustable resistance VR2; Another of adjustable resistance VR1 be a stiff end of termination adjustable resistance VR3 fixedly, another stiff end ground connection of adjustable resistance VR3, and any one is connected with two stiff ends in the adjustable side of adjustable resistance VR3; The negative electrode of voltage-stabiliser tube ZD1 connects the adjustable side of adjustable resistance VR1 and as expeling welding wire, melts the output of ball circuit.
Drive away the molten ball circuit of welding wire and be used for exporting weldingvoltage control instruction V01.
After pressing arc welding gun switch button Ts, diode D1 conducting → transistor T 1 cut-off → weldingvoltage control instruction, by VR1 regulation output, is at this moment exported normal weldingvoltage instruction, and this normal weldingvoltage instruction is a higher level.When welding finishes, decontrol arc welding gun switch Ts, power supply VCC is through R1, R2 and R3 bias voltage, and transistor T 1 conducting → voltage-stabiliser tube ZD1 punctures conducting, and the weldingvoltage control instruction of the now negative electrode of voltage-stabiliser tube ZD1 output changes the molten ball voltage instruction of a more low level expeling welding wire into.The conducting that punctures due to voltage-stabiliser tube ZD1, is limited in output voltage instruction in ZD1 breakdown voltage, makes to drive away the level of the molten ball voltage instruction of welding wire lower than the level of normal weldingvoltage instruction.Thereby when welding finishes, by driving away the molten ball voltage instruction of welding wire, make drive circuit (not drawing in Fig. 1) output voltage of welding machine lower than normal weldingvoltage, the molten ball of welding wire diminishes, and reaches the object of driving away the molten ball of wire tip.Its action sequence is shown in Fig. 2.
Utilize and drive away the molten ball circuit of welding wire, can realize after welding finishes, suitably reduce welding machine output voltage, the molten ball of wire tip is diminished, while being convenient to next welding, striking is easy.
Claims (1)
1. the molten ball circuit of the expeling welding wire of carbon dioxide gas shielded welding machine, is characterized in that, comprising: resistance R 1, one termination power VCC of resistance R 1, the anode of another terminating diode D1, the negative electrode of diode D1 connects one end of arc welding gun switch Ts, the other end ground connection of arc welding gun switch Ts;
One end of the anode connecting resistance R2 of diode D1, one end of other end connecting resistance R3 of resistance R 2 is, the base stage of the negative electrode of diode D2 and NPN transistor T1; The grounded emitter of the anode of the other end of resistance R 3, diode D2 and NPN transistor T1; The colelctor electrode of NPN transistor T1 connects the anode of voltage-stabiliser tube ZD1 by resistance R 4;
One of adjustable resistance VR2 fixing termination power VCC, another is a stiff end of termination adjustable resistance VR1 fixedly, and any one is connected with two stiff ends in the adjustable side of adjustable resistance VR2; Another of adjustable resistance VR1 be a stiff end of termination adjustable resistance VR3 fixedly, another stiff end ground connection of adjustable resistance VR3, and any one is connected with two stiff ends in the adjustable side of adjustable resistance VR3; The negative electrode of voltage-stabiliser tube ZD1 connects the adjustable side of adjustable resistance VR1 and as expeling welding wire, melts the output of ball circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638572.3U CN203526773U (en) | 2013-10-16 | 2013-10-16 | Welding wire molten globule removing circuit of carbon dioxide gas shielded welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638572.3U CN203526773U (en) | 2013-10-16 | 2013-10-16 | Welding wire molten globule removing circuit of carbon dioxide gas shielded welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203526773U true CN203526773U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320638572.3U Withdrawn - After Issue CN203526773U (en) | 2013-10-16 | 2013-10-16 | Welding wire molten globule removing circuit of carbon dioxide gas shielded welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203526773U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521892A (en) * | 2013-10-16 | 2014-01-22 | 无锡市南方电器制造有限公司 | Welding wire molten ball eliminating circuit of carbon dioxide gas shielded welder |
-
2013
- 2013-10-16 CN CN201320638572.3U patent/CN203526773U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521892A (en) * | 2013-10-16 | 2014-01-22 | 无锡市南方电器制造有限公司 | Welding wire molten ball eliminating circuit of carbon dioxide gas shielded welder |
| CN103521892B (en) * | 2013-10-16 | 2015-08-26 | 无锡市南方电器制造有限公司 | The expeling welding wire of carbon dioxide gas shielded welding machine melts ball circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140409 Effective date of abandoning: 20150826 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140409 Effective date of abandoning: 20150826 |
|
| RGAV | Abandon patent right to avoid regrant |