CN203227917U - Novel automatic arc striking current adjusting/control circuit of energy-saving inverter electric welding machine - Google Patents
Novel automatic arc striking current adjusting/control circuit of energy-saving inverter electric welding machine Download PDFInfo
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- CN203227917U CN203227917U CN 201320319738 CN201320319738U CN203227917U CN 203227917 U CN203227917 U CN 203227917U CN 201320319738 CN201320319738 CN 201320319738 CN 201320319738 U CN201320319738 U CN 201320319738U CN 203227917 U CN203227917 U CN 203227917U
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Abstract
The utility model discloses a novel automatic arc striking current adjusting/control circuit of an energy-saving inverter electric welding machine, which comprises the following components: a welding power supply output end, a voltage feedback circuit, a triggering circuit, an electronic switch converting circuit, a current adjusting circuit and an SMT master control board; wherein the welding power supply output end, the voltage feedback circuit, the triggering circuit, the electronic switch converting circuit, the current adjusting circuit and the SMT master control board are electrically connected. The voltage feedback circuit is also connected with the electronic switch converting circuit through a voltage comparison circuit, thereby automatically adjusting the current or switching off output current in short circuit of a welding rod. According to the novel automatic arc striking current adjusting/control circuit of the energy-saving inverter electric welding machine, voltage is adopted for detecting the signal, and different operation states of the welding rod on a workpiece are realized. Output current is automatically switched off when short circuit of the welding rod occurs, thereby ensuring high safety in use.
Description
Technical field
The utility model relates to a kind of inversion welding machine.
Background technology
Inversion welding machine outward also will be to the real-time monitoring of welding rod operating mode for welding current is accurately controlled, in the welding rod combustion process, welding rod constantly is heated, fusing, welding rod begins slowly to shorten, because welding procedure all is by artificial scratching repeatedly on workpiece, these technologies all are to be finished by manually-operated, be difficult to guarantee welding rod time of delivery uniformity simultaneously, the source of welding current constantly is in load, short circuit, states such as zero load, therefore welding machine output voltage and output current constantly changed in each moment, so also burning constantly of welding rod, short circuit, open-circuit condition.Continual and steady continuous current is difficult to the solder joint of fusion welding rod short dot when the welding rod short circuit, constant current is stablized follow current and energy is provided constantly for the welding rod two ends, welding rod begins heating at leisure, reddens, deliquescing, this moment, welding rod was difficult to break away from and open from workpiece, could stop energy to the welding rod two ends up to only turning off device power supply (DPS).
General inversion welding machine all is not suitable for welding thin plate or stainless steel tube on the market, first, when often the welder is the current settings minimum of a value, electric current not enough welding rod point is not, second, when the current settings median, welding rod is can light but welding rod is intermittent burning, and molten bath dark solder joint so inadequately is easy to come off; The 3rd, when the current settings maximum, concerning thin plate and stainless steel material, under big electric current welding situation, be easy to burn material or distortion etc.
The utility model content
The utility model provides that a kind of circuit is simple, implementation cost is lower, and the striking electric current that is used for inversion welding machine is regulated control circuit automatically.Adopt voltage detection signal, realized the different operating state of welding rod on workpiece, can when the welding rod short circuit, cut off output current automatically, when taking away welding rod, you light a fire when welding next time, welding machine has recovered welding current, and the novel energy-conserving inversion welding machine is at big electric current of your ignition point welding machine output, and welding rod is easy to be lighted and burns like this, even not the operation that can use all will be also can welding rod and workpiece cling, improve product service life greatly.
The striking electric current of novel energy-conserving inversion welding machine is regulated control circuit automatically, comprises source of welding current output, voltage feedback circuit, circuits for triggering, electronic switch change-over circuit, the current regulating circuit of mutual electrical connection, the SMT master control borad; Described voltage feedback circuit also connects the electronic switch change-over circuit by voltage comparator circuit, and control is regulated electric current automatically or cut off output current when the welding rod short circuit.
Further, described voltage feedback circuit is by resistance R 01, R03, R02, and the IC01 photoelectrical coupler, and connect capacitor C 01, C02 constitutes, resistance R 01, R03 connects first pin of IC01 photoelectrical coupler, R02 connects the crus secunda of IC01 photoelectrical coupler, resistance R 01, and R02 is connected source of welding current output and constitutes a loop like this, capacitor C 01, C02 carries out filtering.The first, welding machine is when open-circuit condition, and the welding machine output voltage is more high, and IC01 photoelectrical coupler feedback signal is more strong, the second, welding machine is in working order the time, welding machine output loading voltage be U=20+ (0.04*I) at this moment load voltage have at least at more than 20 volt voltages; The 3rd, welding machine when short-circuit condition, the maximum a few volt voltages of welding machine output short-circuit voltage.
Compare with the machine of same model, energy-saving inversion electric welding machine effect after adopting the striking electric current to regulate control circuit automatically is: welding rod ignition point easy firing, thin plate or stainless steel are easy to welding, and the operation welding is more convenient, guarantee to use safety.
Description of drawings
Fig. 1 is that the striking electric current of the novel energy-conserving inversion welding machine that provides of the utility model embodiment is regulated the control circuit block diagram automatically.
The specific embodiment
As shown in Figure 1, the striking electric current of the novel energy-conserving inversion welding machine that the utility model embodiment provides is regulated control circuit automatically, the source of welding current output, voltage feedback circuit, circuits for triggering, electronic switch change-over circuit, the current regulating circuit that comprise mutual electrical connection, the SMT master control borad; Described voltage feedback circuit also connects the electronic switch change-over circuit by voltage comparator circuit, and control is regulated electric current automatically or cut off output current when the welding rod short circuit.
Further, described voltage feedback circuit is by resistance R 01, R03, R02, and the IC01 photoelectrical coupler, and connect capacitor C 01, C02 constitutes, resistance R 01, R03 connects first pin of IC01 photoelectrical coupler, R02 connects the crus secunda of IC01 photoelectrical coupler, resistance R 01, and R02 is connected welding machine output two ends and constitutes a loop like this, capacitor C 01, C02 carries out filtering.The first, welding machine is when open-circuit condition, and the welding machine output voltage is more high, and IC01 photoelectrical coupler feedback signal is more strong, the second, welding machine is in working order the time, welding machine output loading voltage be U=20+ (0.04*I) at this moment load voltage have at least at more than 20 volt voltages; The 3rd, welding machine when short-circuit condition, the maximum a few volt voltages of welding machine output short-circuit voltage.
The energy-saving inversion electric welding machine has utilized the voltage of welding rod when three kinds of different operating modes to realize that electric current regulates control circuit automatically.IC02A, IC03A, IC03 constitutes circuits for triggering, and this circuit is made up of with door an in-phase amplification circuit and two, 3 pin that are input to in-phase amplifier IC02A by photoelectrical coupler feedback signal power are high, 1 pin is high, and 1 pin of IC03A is high, and 2 pin of IC03A are low, 3 pin of IC03B are low, 4 pin of IC03B are high, and the 13 pin current potentials of IC04A are high, the electronic commutator conducting.IC02B IC02C has constituted a relatively amplifying circuit, photoelectrical coupler feedback signal power is input to 5 pin of buffer amplifier IC02B, 6 of IC02B, 7 pin are connected, and are connected with 9 pin of sign-changing amplifier IC02C again, and 8 pin are output as height, with resistance R 11, D03, R12 are connected in series to 1 pin of IC04A, and it is big so just to have formed the instantaneous ignition electric current.IC04A has constituted an electronic switch change-over circuit, cut off the welding machine output current, when welding rod and workpiece short circuit, the photoelectrical coupler feedback signal also a little less than, 13 pin current potentials by AND circuit control IC04A are low, electronic commutator is operated in open-circuit condition, has cut off current controling signal like this, makes the weldering can't output current.VR01, the CN02 socket has constituted current regulating circuit, VR01 is adjustable potentiometer, can change the output current size, when the given signal of electric current of potentiometer VR01 generation increases, the welding current of output also can increase thereupon, and when the given signal of electric current of potentiometer VR01 generation reduced, the welding current of output also can reduce thereupon.
Claims (2)
1. the striking electric current of novel energy-conserving inversion welding machine is regulated control circuit automatically, it is characterized in that, comprises source of welding current output, voltage feedback circuit, circuits for triggering, electronic switch change-over circuit, the current regulating circuit of mutual electrical connection, the SMT master control borad; Described voltage feedback circuit also connects the electronic switch change-over circuit by voltage comparator circuit, and control is regulated electric current automatically or cut off output current when the welding rod short circuit.
2. regulate control circuit automatically according to the striking electric current of the described novel energy-conserving inversion welding machine of claim 1, it is characterized in that, described voltage feedback circuit is by resistance R 01, R03, R02 and IC01 photoelectrical coupler, and connect capacitor C 01, C02 constitutes, resistance R 01, R03 connect first pin of IC01 photoelectrical coupler, R02 connects the crus secunda of IC01 photoelectrical coupler, and resistance R 01, R02 are connected source of welding current output and constitute a loop like this, and capacitor C 01, C02 carry out filtering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320319738 CN203227917U (en) | 2013-05-26 | 2013-05-26 | Novel automatic arc striking current adjusting/control circuit of energy-saving inverter electric welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320319738 CN203227917U (en) | 2013-05-26 | 2013-05-26 | Novel automatic arc striking current adjusting/control circuit of energy-saving inverter electric welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203227917U true CN203227917U (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320319738 Expired - Fee Related CN203227917U (en) | 2013-05-26 | 2013-05-26 | Novel automatic arc striking current adjusting/control circuit of energy-saving inverter electric welding machine |
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| CN (1) | CN203227917U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690399A (en) * | 2015-02-11 | 2015-06-10 | 昆山华恒焊接股份有限公司 | Control method and device for welding power supply |
| CN110340488A (en) * | 2019-06-01 | 2019-10-18 | 上海沪工焊接集团股份有限公司 | A kind of promotion arc start control method of inverter type welder |
-
2013
- 2013-05-26 CN CN 201320319738 patent/CN203227917U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690399A (en) * | 2015-02-11 | 2015-06-10 | 昆山华恒焊接股份有限公司 | Control method and device for welding power supply |
| CN110340488A (en) * | 2019-06-01 | 2019-10-18 | 上海沪工焊接集团股份有限公司 | A kind of promotion arc start control method 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: 20131009 Termination date: 20190526 |
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| CF01 | Termination of patent right due to non-payment of annual fee |