CN102794545A - All-digital integrated circuit for realizing arc extinguishing control logic of gas shielded welding machine - Google Patents
All-digital integrated circuit for realizing arc extinguishing control logic of gas shielded welding machine Download PDFInfo
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Abstract
The invention relates to an all-digital integrated circuit for realizing arc extinguishing control logic of a gas shielded welding machine. The all-digital integrated circuit is characterized in that a first switch can be selectively connected with an arc extinguishing connection end, a conventional connection end or an self-locking connection end in a corresponding manner; the detection of an switching state of an input signal under the switching operation of a welding gun is realized according to signals generated when the first switch is switched to the corresponding positions of the conventional connection end, the self-locking connection end and the arc extinguishing connection end; and then the purposes of controlling the output signal of the welding machine and converting welding conditions are achieved according to the changing of the pre-set conventional, self-locking and arc extinguishing connection states according to the state of a second switch. An arc extinguishing mode is adopted for welding thick pieces with long welding joints, so that an arc crater formed in the arc extinguishing part is avoided; in the arc extinguishing state, the welding machine is converted to lower welding current or voltage to fill the arc crater, so that the formed welding joint is attractive; as the all-digital integrated circuit design is adopted, the requirement on accomplishing the complicated arc extinguishing logic control with fewest elements is realized; and the all-digital integrated circuit is simple and highly reliable.
Description
Technical field
The present invention relates to a kind of digital integrated circuit, especially a kind of gas shielded welding machine of realizing is received the digital integrated circuit of arc control logic, belongs to the technical field of gas shielded welding machine digital and electronic control.
Background technology
Efficiently, the electronically controlled gas shielded welding machine of energy-saving and environmental protection be widely used in that various metal materials are efficient, in the high-quality welding.All kinds of CO
2/ MAG (metal active-gas welding)/MIG (metal inert-gas welding) or TIG (Tungsten Inert Gas welding) gas shielded welding machine programme-control are complicated; Adopted a large amount of electronic devices and components could satisfy the circuit design demand; Thereby cause the control circuit complex structure, reliability is low.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the prior art, provide a kind of gas shielded welding machine of realizing to receive the digital integrated circuit of arc control logic, its circuit is simple, and reliability is high, and is applied widely.
According to technical scheme provided by the invention; Said realization gas shielded welding machine is received the digital integrated circuit of arc control logic; Comprise and receive arc link, conventional link and self-locking link, an end of said receipts arc link links to each other with an end of an end of the 7th resistance and the 8th resistance; The other end of said the 8th resistance links to each other with power supply VCC, and the other end of the 7th resistance links to each other with the input of first phase inverter, an input of the 7th nor gate, an input of the 9th nor gate and an input of NAND gate respectively;
The output of first phase inverter links to each other with an input of the 6th nor gate and an input of the 3rd nor gate; Another input of the 7th nor gate links to each other with the output of four nor gate and an input of second nor gate, and the output of the 7th nor gate links to each other with the R end of first trigger, and another input of the 9th nor gate links to each other with the Q of second trigger end; Another input of NAND gate links to each other with an end of the 9th resistance, and the other end of the 9th resistance links to each other with the self-locking link, and links to each other with power supply VCC through the tenth resistance; Said receipts arc link, conventional link and self-locking link all can link to each other with the moving contact of first switch, the static contact ground connection of first switch; The output of NAND gate links to each other with the input of second phase inverter, and the output of second phase inverter links to each other with an input of the 5th nor gate;
Another input of the 6th nor gate links to each other with the Q end of first trigger, the J end of second trigger and an end of the 5th resistance respectively, and the other end of said the 5th resistance links to each other with an end of the base terminal of triode and the 6th resistance; Ground connection after the other end of the 6th resistance links to each other with the emitter terminal of triode; The collector terminal of triode links to each other with power supply VCC through the coil of relay; One end of relay normally-closed contact links to each other with power supply VCC; The other end is through the first variable resistor ground connection, and when the normally opened contact of relay was closed, power supply VCC can pass through the second adjustable resistance ground connection; The output of the output of the 6th nor gate and the 9th nor gate links to each other with the input of four nor gate respectively, and the output of four nor gate links to each other with an input of second nor gate; Another input of second nor gate links to each other with the output of first nor gate, and the output of second nor gate is through the 4th resistance eutral grounding, and the output of second nor gate forms welding machine output control terminal OUT;
One input of first nor gate links to each other with the clock end of the output of the 3rd phase inverter and first trigger, and another input of first nor gate links to each other with the J end of the output of the 5th nor gate, first trigger and an input of the 8th nor gate; Another input of the 8th nor gate links to each other with the clock end of the input of the 3rd phase inverter and second trigger; The output of the 8th nor gate links to each other with the R end of second trigger, and the K end of second trigger links to each other with
end of first trigger and another input of the 3rd nor gate; The output of the 3rd nor gate links to each other with the K end of first trigger, and the S of first trigger and second trigger holds equal ground connection;
Another input of the 5th nor gate links to each other with an end of second resistance, and the other end of second resistance is through second switch ground connection, and the other end of second resistance links to each other with power supply VCC through the 3rd resistance;
The input of the 3rd phase inverter also links to each other with power supply VCC through first resistance, and the input of the 3rd phase inverter is also through arc welding gun switch ground connection.
The two ends of said relay coil are parallel with diode, and the anode tap of diode links to each other with the collector terminal of triode, and the cathode terminal of diode links to each other with power supply VCC.
Said first trigger and second trigger are JK flip-flop.The adjustable end of said first adjustable resistance links to each other with the V1 link, and the adjustable end of second adjustable resistance links to each other with the V2 link.
Advantage of the present invention: be used for all kinds of gas shielded welding machines, in gas shielded arc welding, weld long weld seam, adopt " self-locking " mode, press and decontrol arc welding gun switch behind the arc welding gun switch and still weld so as not to welder's operation fatigue; In thick of the long weld seam of welding, adopt " receipts arc " mode, so as not to arc crater occurring at receipts arc place; When getting into receipts arcuation attitude; Be transformed into low welding current or voltage and fill up arc crater, make appearance of weld attractive in appearance, realize three kinds of logic control functions of gas shielded welding machine " routine, self-locking, receipts arc "; Adopt digital IC design, realized having accomplished complicated receipts arc logic control requirement with minimum device, circuit is simple, and reliability is high.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
The sequential chart of circuit when Fig. 2 links to each other with conventional link for the present invention's first switch.
The sequential chart of circuit when Fig. 3 links to each other with the self-locking link for the present invention's first switch.
The sequential chart of circuit when Fig. 4 links to each other with receipts arc link for the present invention's first switch.
The specific embodiment
Below in conjunction with concrete accompanying drawing and embodiment the present invention is described further.
As shown in Figure 1: the present invention realizes that the full-digital circuit of gas shielded welding machine receipts arc control logic comprises receipts arc link, conventional link and self-locking link, and an end of said receipts arc link links to each other with an end of the 7th resistance R 7 and an end of the 8th resistance R 8; The other end of said the 8th resistance R 8 links to each other with power supply VCC, and the other end of the 7th resistance R 7 links to each other with the input of the first inverter ic 4A, the input of the 7th nor gate IC4C, the input of the 9th nor gate IC3D and the input of NAND gate IC4F respectively;
The output of the first inverter ic 4A links to each other with the input of the 6th nor gate IC3C and the input of the 3rd nor gate IC2B; Another input of the 7th nor gate IC4C links to each other with the input of the output of four nor gate IC3B and the second nor gate IC3A; The output of the 7th nor gate IC4C links to each other with the R end of the first trigger IC1A, and another input of the 9th nor gate IC3D links to each other with the Q end of the second trigger IC1B; Another input of NAND gate IC4F links to each other with an end of the 9th resistance R 9, and the other end of the 9th resistance R 9 links to each other with the self-locking link, and links to each other with power supply VCC through the tenth resistance R 10; Said receipts arc link, conventional link and self-locking link all can link to each other with the moving contact of first switch S 1, the static contact ground connection of first switch S 1; The output of NAND gate IC4F links to each other with the input of the second inverter ic 4B, and the output of the second inverter ic 4B links to each other with the input of the 5th nor gate IC2C;
Another input of the 6th nor gate IC3C links to each other with the Q end of the first trigger IC1A, the J end of the second trigger IC1B and an end of the 5th resistance R 5 respectively, and the other end of said the 5th resistance R 5 links to each other with the base terminal of triode Q1 and an end of the 6th resistance R 6; Ground connection after the other end of the 6th resistance R 6 links to each other with the emitter terminal of triode Q1; The collector terminal of triode Q1 links to each other with power supply VCC through the coil of relay R L; One end of relay R L normally-closed contact links to each other with power supply VCC; The other end is through the first variable resistor VR1 ground connection, and when the normally opened contact of relay R L was closed, power supply VCC can pass through the second adjustable resistance VR2 ground connection; The two ends of said relay R L coil are parallel with diode D1, and the anode tap of diode D1 links to each other with the collector terminal of triode Q1, and the cathode terminal of diode D1 links to each other with power supply VCC.The adjustable end of the said first adjustable resistance VR1 links to each other with the V1 link, and the adjustable end of the second adjustable resistance VR2 links to each other with the V2 link.
The output of the output of the 6th nor gate IC3C and the 9th nor gate IC3D links to each other with the input of four nor gate IC3B respectively, and the output of four nor gate IC3B links to each other with the input of the second nor gate IC3A; Another input of the second nor gate IC3A links to each other with the output of the first nor gate IC2A, and the output of the second nor gate IC3A is through the 4th resistance R 4 ground connection, and the output of the second nor gate IC3A forms welding machine output control terminal OUT;
The input of the first nor gate IC2A links to each other with the clock end of the output of the 3rd inverter ic 4E and the first trigger IC1A, and another input of the first nor gate IC2A links to each other with the J end of the output of the 5th nor gate IC2C, the first trigger IC1A and the input of the 8th nor gate IC2D; Another input of the 8th nor gate IC2D links to each other with the clock end of the input of the 3rd inverter ic 4E and the second trigger IC1B; The output of the 8th nor gate IC2D links to each other with the R end of the second trigger IC1B, and the K end of the second trigger IC1B links to each other with
end of the first trigger IC1A and another input of the 3rd nor gate IC2B; The output of the 3rd nor gate IC2B links to each other with the K end of the first trigger IC1A, and the S of the first trigger IC1A and the second trigger IC1B holds equal ground connection; The said first trigger IC1A and the second trigger IC1B are JK flip-flop, and
end of the second trigger IC1B suspends.
Another input of the 5th nor gate IC2C links to each other with an end of second resistance R 2, and the other end of second resistance R 2 is through second switch S2 ground connection, and the other end of second resistance R 2 links to each other with power supply VCC through the 3rd resistance R 3;
The input of the 3rd inverter ic 4E also links to each other with power supply VCC through first resistance R 1, and the input of the 3rd inverter ic 4E is also through arc welding gun switch TS1 ground connection.
The first trigger IC1A, the second trigger IC1B adopt two JK flip-flops of a slice integrated circuit model 4027 in the embodiment of the invention.The first nor gate IC2A, the second nor gate IC3A, the 3rd nor gate IC2B, four nor gate IC3B, the 5th nor gate IC2C, the 6th nor gate IC3C, the 8th nor gate IC2D, the 9th nor gate IC3D obtain for adopting two integrated circuit models to be 4001 two input nor gates.It is 4572 integrated circuits that the 7th nor gate IC4C, the first inverter ic 4A, the second inverter ic 4B, the 3rd inverter ic 4E and NAND gate IC4F adopt a slice model.
First switch S 1 can be selected and receive arc link, conventional link and the corresponding connection of self-locking link; Signal when switching to conventional link, self-locking link, receipts arc link correspondence position according to first switch S 1; Realize input signal " IN " on off state (ON, detection OFF), and then under the arc welding gun switch TS1 operation according to the state of second switch S2; Reach the purpose of control welding machine output signal according to the conversion of predetermined " routine ", " self-locking ", " receipts arc " connection status; And the conversion of welding conditions, wherein, second switch S2 is the sense switch that welding current has no signal.The welding conditions conversion is the electriferous state that passes through the coil of relay R L among Fig. 1, and the normally opened contact of control relay RL, the closure state of normally-closed contact reach the conversion between welding conditions V1 and the welding conditions V2.Among Fig. 1, the IN end is for being used to detect the link of arc welding gun switch state, and the TP1 end is test point.
Below through analyze first switch S 1 be connected to respectively receive arc link, conventional link, self-locking link after, when operating arc welding gun switch TS1 simultaneously, the variation of entire circuit output and sequential.Be specially:
1), as shown in Figure 1, when first switch S 1 was switched to conventional link position, promptly first switch S 1 was in neutral position; Welding machine output control terminal OUT just has signal output after pressing arc welding gun switch TS1, and promptly welding machine output control terminal OUT is in " high level ", at this moment; Welding machine has output to start working, and behind the relieving arc welding gun switch TS1, welding machine output control terminal OUT is in " low level " state; The welding machine no-output quits work, and sequential is moved like Fig. 2.
Concrete implementation procedure: when 1 switching of first switch S is connected to conventional link; Then the first inverter ic 4A, the 9th nor gate IC3D's is input as high level; Output low level after the first inverter ic 4A anti-phase; Promptly the first inverter ic 4A is output as low level, because the output of the Q of first trigger IC1A end also is low level at this moment, then the output of the 6th nor gate IC3C is a high level; When the 6th nor gate IC3C is output as high level, and the output of the 6th nor gate IC3C links to each other with the input of four nor gate IC3B, then makes the output of four nor gate IC3B be output as low level.The low level of four nor gate IC3B output is imported in the second nor gate IC3A; After this moment, arc welding gun switch TS1 pressed; Arc welding gun switch TS1 drags down the level of the 3rd inverter ic 4E input and is low level, then after the 3rd inverter ic 4E anti-phase, is output as high level.The high level of the 3rd inverter ic 4E output is imported in the first nor gate IC2A, makes the output of the nor gate IC2A that wins be output as low level.At this moment, two input signals importing the second nor gate IC3A are low level, and then the output of the second nor gate IC3A is exported high level, and promptly welding machine output control terminal OUT is a high level, and welding machine has output.Otherwise, behind the relieving arc welding gun switch TS,, make that the level of the 3rd inverter ic 4E input is a high level because first resistance R 1 cooperates with power supply VCC down, after the 3rd inverter ic 4E anti-phase, the level of importing the first nor gate IC2A input is a low level; The 5th nor gate IC2C is output low level under second resistance R 2, the 3rd resistance R 3 and power supply VCC effect, then first nor gate IC2A output high level.When the first nor gate IC2A be output as high level, when four nor gate IC3B is output as low level, the output of the second nor gate IC3A output becomes low level, promptly welding machine output control terminal OUT is a low level, the welding machine no-output.
2), switch when being connected to the self-locking link when first switch S 1, and after arc welding gun switch TS1 pressed, welding machine output control terminal OUT was a high level, and welding machine has output; After decontroling arc welding gun switch TS1, welding machine output control terminal OUT still has output, and after pressing arc welding gun switch TS1 once more, welding machine output control terminal OUT no-output quits work, and sequential is as shown in Figure 3.
Concrete implementation procedure is as shown in Figure 1: when first switch S 1 is switched when being connected to self-locking and connecting end-grain cutting and press arc welding gun switch TS1; Be connected to conventional link with first switch S 1 this moment and press the situation of arc welding gun switch TS1 identical; This moment, four nor gate IC3B was output as low level, the first nor gate IC2A output low level, and then the output of the second nor gate IC3A is a high level; Be that welding machine output control terminal OUT is high level, welding machine has output.
But when arc welding gun switch TS1 decontrols; Because switching, first switch S 1 is connected to the self-locking link; Make NAND gate IC4F be output as high level, cause the second inverter ic 4B to be output as low level, this moment since second switch S2 state for the welding current low level state is arranged; Make the 5th nor gate IC2C be output as high level, make the first nor gate IC2A output low level; Because four nor gate IC3B output also is low level, therefore,, still be high level but still can make the second nor gate IC3A export though arc welding gun switch TS1 unclamps, i.e. welding machine output control terminal OUT output high level, welding machine still has output.After pressing arc welding gun switch TS1 once more, because the first trigger IC1A circuit JK flip-flop effect make four nor gate IC3B be output as high level, thereby the second nor gate IC3A is output as low level, the welding machine no-output has stopped work like this.
3), switch when first switch S 1 and to be connected to when receiving the arc link, and after pressing arc welding gun switch TS1, welding machine has output; After decontroling arc welding gun switch TS1, welding machine has output, maintains output after pressing arc welding gun switch TS1 once more; But the contact action of triode Q1 conducting this moment, relay R L switches to " V2 " with the output standard of welding machine by former " V1 ", is in and receives the arcuation attitude; Decontrol arc welding gun switch TS1 once more, the welding machine no-output, sequential chart is as shown in Figure 4.
Concrete implementation procedure is following: after first switch S 1 is connected to receipts arc link; After arc welding gun switch TS1 presses for the first time and decontrols for the first time; After the sequential action of entire circuit and corresponding circuits logical relation process are connected to the self-locking link with above-mentioned first switch S 1, the state consistency after arc welding gun switch TS1 presses for the first time and decontrols for the first time; Promptly when first switch S 1 be connected to receive the arc link after, press arc welding gun switch TS1 then after, the first nor gate IC2A output low level; The connection level of the 9th nor gate IC3D input is low level simultaneously; Then the 9th nor gate IC3D exports high level, and then four nor gate IC3B is output as low level, then second nor gate IC3A output high level; The output that is welding machine output control terminal OUT is high level, and this moment, welding machine had output.
But after pressing arc welding gun switch TS1 once more, the 3rd inverter ic 4E is output as high level, and the 3rd inverter ic 4E links to each other with the clock end of the first trigger IC1A; This moment the first trigger IC1A Q end output high level, make triode Q1 conducting through the 5th resistance R 5, the coil of relay RL is charged after the triode Q1 conducting; The contact action of relay R L, promptly the normally-closed contact of relay R L breaks off, and normally opened contact is closed then; Make welding machine output standard switch to " V2 " by former " V1 ", realized " receipts arc " processing capacity, receive arc link because first switch S 1 is switched to be connected to this moment; Make the 9th nor gate IC3D input and the first inverter ic 4A be input as low level, press arc welding gun switch TS1 at this like this, cause the Q end of the second trigger IC1B to be output as low level; Therefore cause the 9th nor gate IC3D output high level, four nor gate IC3B is output as low level, and the second nor gate IC3A is output as high level; Be that welding machine output control terminal OUT is a high level, welding machine has output.But after decontroling arc welding gun switch TS1 once more, second trigger IC1B upset, the Q end output high level of the second trigger IC1B; Then make the 9th nor gate IC3D be output as low level; Four nor gate IC3B is output as high level, and then the second nor gate IC3A is output as low level, and promptly welding machine output control terminal OUT is a low level; The welding machine no-output has so just been accomplished the logic control function of whole " receipts arc " state.
The present invention is used for all kinds of gas shielded welding machines, in gas shielded arc welding, welds long weld seam, adopts " self-locking " mode so as not to welder's operation fatigue, presses to decontrol arc welding gun switch behind the arc welding gun switch and still weld; In thick of the long weld seam of welding, adopt " receipts arc " mode, so as not to arc crater occurring at receipts arc place; When getting into receipts arcuation attitude; Be transformed into low welding current or voltage and fill up arc crater, make appearance of weld good, realize three kinds of logic control functions of gas shielded welding machine " routine, self-locking, receipts arc ".The receipts arc logic control circuit of gas shielded welding machine of the present invention adopts digital IC design, has realized having accomplished complicated receipts arc logic control requirement with minimum device, and circuit is simple, and reliability is high.
Claims (4)
1. realize that gas shielded welding machine receives the digital integrated circuit of arc control logic for one kind; It is characterized in that: comprise and receive arc link, conventional link and self-locking link, an end of said receipts arc link links to each other with an end of the 7th resistance (R7) and an end of the 8th resistance (R8); The other end of said the 8th resistance (R8) links to each other with power supply VCC, and the other end of the 7th resistance (R7) links to each other with the input of first phase inverter (IC4A), an input of the 7th nor gate (IC4C), an input of the 9th nor gate (IC3D) and an input of NAND gate (IC4F) respectively;
The output of first phase inverter (IC4A) links to each other with an input of the 6th nor gate (IC3C) and an input of the 3rd nor gate (IC2B); Another input of the 7th nor gate (IC4C) links to each other with an input of the output of four nor gate (IC3B) and second nor gate (IC3A); The output of the 7th nor gate (IC4C) links to each other with the R end of first trigger (IC1A), and another input of the 9th nor gate (IC3D) links to each other with the Q end of second trigger (IC1B); Another input of NAND gate (IC4F) links to each other with an end of the 9th resistance (R9), and the other end of the 9th resistance (R9) links to each other with the self-locking link, and links to each other with power supply VCC through the tenth resistance (R10); Said receipts arc link, conventional link and self-locking link all can link to each other with the moving contact of first switch (S1), the static contact ground connection of first switch (S1); The output of NAND gate (IC4F) links to each other with the input of second phase inverter (IC4B), and the output of second phase inverter (IC4B) links to each other with an input of the 5th nor gate (IC2C);
Another input of the 6th nor gate (IC3C) links to each other with the Q end of first trigger (IC1A), the J end of second trigger (IC1B) and an end of the 5th resistance (R5) respectively, and the other end of said the 5th resistance (R5) links to each other with the base terminal of triode (Q1) and an end of the 6th resistance (R6); Ground connection after the other end of the 6th resistance (R6) links to each other with the emitter terminal of triode (Q1); The collector terminal of triode (Q1) links to each other with power supply VCC through the coil of relay (RL); One end of relay (RL) normally-closed contact links to each other with power supply VCC; The other end is through first variable resistor (VR1) ground connection; When the normally opened contact of relay (RL) was closed, power supply VCC can pass through the second adjustable resistance (VR2) ground connection; The output of the output of the 6th nor gate (IC3C) and the 9th nor gate (IC3D) links to each other with the input of four nor gate (IC3B) respectively, and the output of four nor gate (IC3B) links to each other with an input of second nor gate (IC3A); Another input of second nor gate (IC3A) links to each other with the output of first nor gate (IC2A); The output of second nor gate (IC3A) is through the 4th resistance (R4) ground connection, and the output of second nor gate (IC3A) forms welding machine output control terminal OUT;
One input of first nor gate (IC2A) links to each other with the output of the 3rd phase inverter (IC4E) and the clock end of first trigger (IC1A), and another input of first nor gate (IC2A) links to each other with the J end of the output of the 5th nor gate (IC2C), first trigger (IC1A) and an input of the 8th nor gate (IC2D); Another input of the 8th nor gate (IC2D) links to each other with the input of the 3rd phase inverter (IC4E) and the clock end of second trigger (IC1B); The output of the 8th nor gate (IC2D) links to each other with the R end of second trigger (IC1B), and the K end of second trigger (IC1B) links to each other with
end of first trigger (IC1A) and another input of the 3rd nor gate (IC2B); The output of the 3rd nor gate (IC2B) links to each other with the K end of first trigger (IC1A), and the S of first trigger (IC1A) and second trigger (IC1B) holds equal ground connection;
Another input of the 5th nor gate (IC2C) links to each other with an end of second resistance (R2), and the other end of second resistance (R2) is through second switch (S2) ground connection, and the other end of second resistance (R2) links to each other with power supply VCC through the 3rd resistance (R3);
The input of the 3rd phase inverter (IC4E) also links to each other with power supply VCC through first resistance (R1), and the input of the 3rd phase inverter (IC4E) is also through arc welding gun switch (TS1) ground connection.
2. realization gas shielded welding machine according to claim 1 is received the digital integrated circuit of arc control logic; It is characterized in that: the two ends of said relay (RL) coil are parallel with diode (D1); The anode tap of diode (D1) links to each other with the collector terminal of triode (Q1), and the cathode terminal of diode (D1) links to each other with power supply VCC.
3. realization gas shielded welding machine according to claim 1 is received the digital integrated circuit of arc control logic, and it is characterized in that: said first trigger (IC1A) and second trigger (IC1B) are JK flip-flop.
4. realization gas shielded welding machine according to claim 1 is received the digital integrated circuit of arc control logic; It is characterized in that: the adjustable end of said first adjustable resistance (VR1) links to each other with the V1 link, and the adjustable end of second adjustable resistance (VR2) links to each other with the V2 link.
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| CN201210312423.8A CN102794545B (en) | 2012-08-29 | 2012-08-29 | All-digital integrated circuit for realizing arc extinguishing control logic of gas shielded welding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103506738A (en) * | 2013-10-16 | 2014-01-15 | 无锡市大德科技有限公司 | CO2/MAG arc welding machine arc extinguishing control circuit composed of relays |
| 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 |
| CN111618395A (en) * | 2020-05-23 | 2020-09-04 | 上海沪工焊接集团股份有限公司 | Arc quenching control circuit of inverter manual arc welding machine |
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| JPS551948A (en) * | 1978-06-21 | 1980-01-09 | Nippon Steel Corp | Automatic control method of arc length in tig automatic welding |
| CN201239844Y (en) * | 2008-04-23 | 2009-05-20 | 蒋仲湘 | Novel soft switch inversion type carbon dioxide gas protecting welder |
| CN202804446U (en) * | 2012-08-29 | 2013-03-20 | 无锡市南方电器制造有限公司 | All-digital integrated circuit for realizing arc extinguishing control logic of gas shielded welding machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506738A (en) * | 2013-10-16 | 2014-01-15 | 无锡市大德科技有限公司 | CO2/MAG arc welding machine arc extinguishing control circuit composed of relays |
| 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 |
| CN103506738B (en) * | 2013-10-16 | 2015-05-13 | 无锡市大德科技有限公司 | CO2/MAG arc welding machine arc extinguishing control circuit composed of relays |
| 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 |
| CN111618395A (en) * | 2020-05-23 | 2020-09-04 | 上海沪工焊接集团股份有限公司 | Arc quenching control circuit of inverter manual arc welding machine |
| CN111618395B (en) * | 2020-05-23 | 2022-09-27 | 上海沪工焊接集团股份有限公司 | Arc quenching control circuit of inverter manual arc welding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102794545B (en) | 2014-10-08 |
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