CN104368896B - A kind of dark fusion penetration union-melt weld controller - Google Patents
A kind of dark fusion penetration union-melt weld controller Download PDFInfo
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- CN104368896B CN104368896B CN201410568651.0A CN201410568651A CN104368896B CN 104368896 B CN104368896 B CN 104368896B CN 201410568651 A CN201410568651 A CN 201410568651A CN 104368896 B CN104368896 B CN 104368896B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
- B23K9/1043—Power supply characterised by the electric circuit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
Abstract
The present invention relates to a kind of dark fusion penetration union-melt weld controller, belong to submerged arc welding equipment technical field. Controller comprises voltage stabilized source, the single-phase pulse-width modulation circuit of PWM, common/pulse function switching circuit, LED signal display circuit and weld seam telltale. It is an advantage of the current invention that: frequency, dutycycle and background current parameter are solidified in controller, has simplified welding operation, make controller panel only stay the single adjustment knob of fusion penetration (peak point current); Controller can realize low-frequency pulse, effectively controls heat input, improves the quality of weld seam, adds welding penetration; Cost of the present invention is lower than other integrated equipment, and can reach identical control effects.
Description
Technical field
The present invention relates to a kind of dark fusion penetration union-melt weld controller, belong to submerged arc welding equipment technical field.
Background technology
Union-melt weld production efficiency height, formation of weld is good, and in factory work, without arc light radiation, is widely used in the thick plates in the fields such as shipbuilding, boiler, oceanographic engineering. At present, the union-melt weld equipment that each big industry uses, mostly is high power DC submerged arc welding machine, and the control of fusion penetration and deposition rate is comparatively difficult, and it is when reduced-current, and electric arc penetration power is not enough, and fusion penetration is less; And when adopting big current, easily causing again magnetic blow, heat input is excessive, causes problems of welded quality. Along with the raising of domestic submerged welding process level, client is more harsh to the requirement of welding quality, therefore that welding equipment requirements is also higher; And existing direct current submerged arc welding machine reserve capacity is very big in the industry, such as unified more exchange device, equipment will face idle and superseded, it may also be useful to high costs, therefore, it is necessary to do further improvement and research on existing submerged arc welding machine.
Patented invention number " CN201110418499.4 " name is called " a kind of submerged arc welding controller ", by detection weldingvoltage electric current signal, magnetizing current signal, armature voltage and current signal, unit is driven, it is achieved to motor rotating speed size, the closed-loop control turned to control PWM pulsewidth. Its mainly by dsPIC30F series monolithic control there is network communication function send a controller; This invention mainly to sending silk to carry out Digital Control, by change wire feed rate thus change weldingvoltage. PLC regulating and controlling parameter is too much, and cost is higher, in actual production, is badly in need of the integrated equipment of low-cost high-efficiency.
Summary of the invention
It is an object of the invention to for above-mentioned deficiency, it is provided that a kind of deeply molten union-melt weld controller, not enough to expect the solving welding penetration that in prior art, direct current union-melt weld exists, the technical problem that welding efficiency is low, renewal is expensive.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A kind of dark fusion penetration union-melt weld controller provided by the present invention, comprises multimode power supply, the single-phase pulse-width modulation circuit of PWM, common/pulse function switching circuit, LED signal display circuit and weld seam telltale.
Described dark fusion penetration union-melt weld controller is a kind of union-melt weld external controller, is independently arranged on original union-melt weld controlling box, and controlling box welding trip switch is not changed; If do not needed controller function, getting final product closing controller to be switched to normal weld pattern, dark fusion penetration union-melt weld controller panel has: common/impulsive switched switch, fusion penetration (peak value adjustment) knob, display change-over switch.
Described multimode power supply is positioned in controller, adopts 120W two group voltage to export D-120W switch power supply, and input 220V sinusoidal ac, exports+12V and+5V (error 2%) voltage of direct-flow voltage regulation; By four pin connectors, pulse-width modulation circuit single-phase with PWM, common/pulse function switching circuit, LED signal display circuit and weld seam telltale are connected this multimode power supply respectively.
The single-phase pulse-width modulation circuit of described PWM is connected with original union-melt weld controlling box by ten four-core control lines, is connected with common/pulse function switching circuit, LED signal display circuit by connector, is different from prior art characteristic:
1. the single-phase pulse-width modulation circuit of PWM described in is using pulse generation chip SG3526 as modulation pulse generator, and chip SG3526 process coordinates, with peripheral circuit, the output that can realize pulse signal: its forming circuit is divided into A district pulse signal generation circuit and B district pulse input signal to form circuit.
Described pulse signal generation circuit is by chip SG3526, resistance R1, R2, R3, R4, R5, potentiometer RP1, RP2, electric capacity C1, C2, filter capacitor C3, C4, C5, diode D1, D2, power Vcc is formed, wherein resistance R1 and potentiometer RP1 series connection the 18 pin 18, connect that user's voltage is given and voltage feedback, form width modulation and export; 3rd pin 3 is connected by resistance R2 and is connected with the pressure feedback port of controlled plant; 4th pin 4 arranges soft-start time by series capacity C1 the again with six pin 6, the 7th pin 7 also ground connection in parallel; 5th pin 5 is just connected with power Vcc by electric capacity C2; 9th pin 9 is connected with ground with potentiometer RP2 by resistance R3, regulates pwm pulse frequency; 13 pin the 13, the 16 pin 16 is in parallel after series diode D1, D2 respectively thus forms pulse signal generation circuit.
Described pulse input signal forms electricity routing resistance R6, R7, electric capacity C6, triode Q, diode D3, D4, relay1 switch J1, power Vcc is formed, the wherein positive pole series connection of power Vcc and relay1 switch J1 coil, the negative pole of relay1 switch J1 coil and the series connection of triode Q collector electrode, diode D3, D4 are in parallel with triode Q, relay1 switch J1 respectively, electric capacity C6 and triode Q base stage, emtting electrode parallel connection.
In described pulse signal generation circuit after diode D1, D2 parallel connection and pulse input signal form resistance R7 in circuit and be in series.
2. in pulse signal generation circuit described in, largest duty cycle regulation range is 0��96%, and the regulation range of pulse-repetition is 1��50Hz;
3. pulse input signal described in forms PWM waveform Direct driver triode Q in circuit, pass through+12V Japan Omron synchronizing relay switch J1, the generation of setting pulse current input signal, base value input signal is connected to normally closed pin, peak value input signal is connected to often opens pin, public end connection signal output terminal.
Described common/pulse function switching circuit, it is made up of controller electric current potentiometer RP3 and RP4, original union-melt weld controlling box electric current potentiometer RP5 ,+12VDC Omron intermediate relay switch J2-1, J2-2, J2-3 so that controller electric current potentiometer RP3 and RP4 and original union-melt weld controlling box electric current potentiometer RP5 can switch; Three pins of original union-melt weld controlling box electric current potentiometer RP5 connect the normal-closed end of three groups of switches respectively, and three pins of controller electric current potentiometer RP3 and RP4 meet the Chang Kaiduan of three groups of switches respectively.
Described LED signal display circuit, is made up of display switching circuit and signals collecting display section; The display switching circuit that described LED signal display circuit is made up of BCD dial and CD4051 analog switch and the signals collecting display section being made up of three and half digital watch ICL7107 and charactron form; Described display switching circuit, can be realized the switching of the base value peak value of pulsed current, pulse-repetition, each parameter of dutycycle, switch the shown sequence of described acquired signal by the 8421 of dial yards and CD4051 analog switch; Described signals collecting display section, duty cycle signals picks up from duty cycle adjustment potentiometer RP1, and pulse duration frequency signal picks up from potentiometer RP2, and pulsed current signal picks up from the middle pin of controller electric current potentiometer RP3 and RP4; Obtaining signal and reduce strength of signal by a point compressive resistance, obtain millivolt magnitude voltage signals, display numerical value is by multiple numeral method.
Described weld seam telltale, is connected with multimode power supply by two heart yearns, and weld seam telltale is made up of two red point-like laser modules in parallel, and weld seam telltale is secured by bolts on welding gun, replaces original needle-like telltale; Described weld seam telltale sends the adjustable red hot spot of two bundles so that it is corresponding with Weld pipe mill, can regulate the skew amount of welding wire in welding process in time.
The invention has the advantages that:
One, frequency, dutycycle and background current parameter are solidified in controller by the present invention, have simplified welding operation, make controller panel only stay the single adjustment knob of fusion penetration (peak point current).
Two, controller waveform frequency of the present invention is lower, effectively controls heat input, improve the quality of weld seam, it is to increase welding penetration.
Three, cost of the present invention is lower than other integrated equipment, and can reach identical control effects.
Accompanying drawing explanation
Fig. 1 is the present invention dark fusion penetration union-melt weld controller architecture figure.
Fig. 2 is the panel schematic diagram of dark fusion penetration union-melt weld controller.
Fig. 3 is the single-phase pulse-width modulation circuit of PWM.
Fig. 4 is PWM waveform schematic diagram.
Fig. 5 is common/pulse function switching circuit.
Fig. 6 is LED signal display circuit.
Fig. 7 is the centering schematic diagram of weld seam telltale.
Embodiment
The specific embodiment of the present invention is further described below in conjunction with accompanying drawing:
Seeing Fig. 1, a kind of dark fusion penetration union-melt weld controller, comprises multimode power supply, the single-phase pulse-width modulation circuit of PWM, common/pulse function switching circuit, LED signal display circuit, weld seam telltale, connector unit.
Seeing Fig. 2, the dark fusion penetration union-melt weld controller of the present invention is a kind of union-melt weld external controller, is independently arranged on original union-melt weld controlling box, and controlling box welding trip switch is not changed; If do not needed controller function, getting final product closing controller to be switched to normal weld pattern, dark fusion penetration union-melt weld controller panel has: common/impulsive switched switch, fusion penetration (peak value adjustment) knob, display change-over switch; The control waveform that described controller can produce frequency, dutycycle is adjustable, wherein pulsed current base value, waveform frequency and dutycycle three parameters are for presetting adjustable parameter, are built in controller.
Described multimode power supply is positioned in controller, adopts 120W two group voltage to export D-120W switch power supply, and input 220V sinusoidal ac, exports+12V and+5V (error 2%) voltage of direct-flow voltage regulation; This multimode power supply is connected by four pin connector pulse-width modulation circuits single-phase with PWM, common/pulse function switching circuit, LED signal display circuit and weld seam telltale; Described switch power supply, provides+12V direct current to the single-phase pulse-width modulation circuit of PWM, common/pulse function switching circuit, weld seam telltale, provides+5V direct current to LED display circuit; Direct current after rectification is input in the single-phase pulse-width modulation circuit of PWM, thus realizes the range regulation to the pulsewidth of waveform and frequency, welding current base value/peak value.
The single-phase pulse-width modulation circuit of described PWM is connected with original union-melt weld controlling box by ten four-core control lines, and its technology is characterized as sees Fig. 3:
Pulse generation chip SG3526 is as modulation pulse generator, be the switching regulaor with fixed frequency work and the control application of other power and the single-phase pulse width modulator of third generation high-performance that designs, chip through with peripheral circuit coordinate the output that can realize pulse signal; Its process coordinates, with peripheral circuit, the output realizing pulse signal, and A district is pulse signal generation circuit, and B district is that pulse input signal forms circuit.
Described pulse signal generation circuit is by chip SG3526, resistance R1, R2, R3, R4, R5, potentiometer RP1, RP2, electric capacity C1, C2, filter capacitor C3, C4, C5, diode D1, D2, power Vcc is formed, wherein resistance R1 and potentiometer RP1 series connection the 18 pin 18, connect that user's voltage is given and voltage feedback, form width modulation and export; 3rd pin 3 is connected by resistance R2 and is connected with the pressure feedback port of controlled plant; 4th pin 4 series capacity C1 and the 6th pin 6, the 7th pin 7 ground connection in parallel arrange soft-start time; 5th pin 5 is just connected with power Vcc by electric capacity C2; 9th pin 9 is connected with ground with potentiometer RP2 by resistance R3, regulates pwm pulse frequency; 13 pin the 13, the 16 pin 16 is in parallel after series diode D1, D2 respectively thus forms pulse signal generation circuit.
Described pulse input signal forms electricity routing resistance R6, R7, electric capacity C6, triode Q, diode D3, D4, relay1 switch J1, power Vcc is formed, the wherein positive pole series connection of power Vcc and relay1 switch J1 coil, the negative pole of relay1 switch J1 coil and the series connection of triode Q collector electrode, diode D3, D4 are in parallel with triode Q, relay1 switch J1 respectively, electric capacity C6 and triode Q base stage, emtting electrode parallel connection.
In described pulse signal generation circuit after diode D1, D2 parallel connection and pulse input signal form resistance R7 in circuit and be in series.
Described SG3526 produces PWM waveform after diode D1 and D2, PWM waveform drives triode Q break-make action, this triode Q is as switch on and off, relay1 switch J1 is Japan's Omron synchro-switch rly., standard voltage 12V, the wherein generation of relay1 switch J1 major control pulsed current input signal, base value input signal is connected to normally closed pin, crest voltage model is connected to often opens pin, public end connection signal output terminal; When pulse signal is in high level, triode Q conducting, now relay1 switch J1 starts often to open by normally closed being switched to, and peak point current voltage control signal exports; When pulse signal is in lower level, relay1 switch J1 is in normally off conducting, and background current voltage control signal exports. Pulse signal is input to through demultiplexing circuit in original union-melt weld controlling box afterwards, then through arithmetical circuit rear drive thyristor, reaches pulse welding. By regulating frequency and the dutycycle of the resistance of potentiometer RP1 and RP2 and adjustable waveform, just the frequency and dutycycle welding pulsed current can be set. In pulse signal generation circuit, largest duty cycle regulation range is 0��96%, and the regulation range of pulse-repetition is 1��50Hz.
Described presetting PWM welds waveform and sees Fig. 4, and its dutycycle is 60%, and frequency is 1.03Hz, can effectively reach the effect of default welding penetration.
Described common/pulse function switching circuit is shown in Fig. 5, by electric current potentiometer RP3, RP4, original union-melt weld controlling box electric current potentiometer RP5, + 12VDC Omron intermediate relay switch J2-1, J2-2, J2-3 are formed, wherein three pins of original union-melt weld controlling box electric current potentiometer RP5 connect the normal-closed end of J2-1/2/3 respectively, in the middle of controller electric current base value potentiometer RP3, pin connects the normal-closed end of J1, the middle pin of spike potential device RP4 meets the Chang Kaiduan of J1, and the 3rd pin 3 of first pin 1 of RP3 and the 2nd pin 2 of RP3 and RP4 meets the Chang Kaiduan of J2-1/2/3 respectively.
Fig. 6 is shown in by described LED signal display circuit, and the display switching circuit being made up of BCD dial and CD4051 output channel system selector switch and the signals collecting display section being made up of three and half digital watch ICL7107 and charactron form.
Described display switching circuit, by dial, analog switch CD4051, divide compressive resistance R27, R31, R28, R32, R29, R33, R30, R34, R35, R37 is formed, described point of compressive resistance starting end is signals collecting input terminus, middle-end respectively with the 12 to the 15 pin 12 of CD4051, 13, 14, 15 are connected, end ground connection in parallel, first pin 1, 5th pin 5, 2nd pin 2, 4th pin 4 ground connection in parallel, the pin C of dial, 4th pin 4, 2nd pin 2, first pin 1 respectively with 5V power supply, 11 pin 11 of CD4051, tenth pin 10, 9th pin 9 is connected, described dial can realize the switching of the base value/peak value of pulsed current, pulse-repetition, each parameter of dutycycle, switches the shown sequence of described acquired signal.
Described signals collecting shows, and duty cycle signals picks up from Fig. 3 duty cycle adjustment potentiometer RP1, and pulse duration frequency signal picks up from potentiometer RP2, and pulsed current signal picks up from the middle pin of Fig. 5 controller electric current potentiometer RP3 and RP4; Obtaining signal and reduce strength of signal by a point compressive resistance, obtain millivolt magnitude voltage signals, display numerical value is by multiple numeral method, and LED display circuit facilitates the digitizing of signal, and parameter regulation is more convenient.
Fig. 7 is shown in by described weld seam telltale, is connected with multimode power supply by two heart yearns, and weld seam telltale is made up of two red point-like laser modules in parallel, and weld seam telltale is secured by bolts on welding gun, replaces original needle-like telltale; Described weld seam telltale sends the adjustable red hot spot of two bundles so that it is corresponding with Weld pipe mill, can regulate the skew amount of welding wire in welding process in time.
Below using practical engineering application as case study on implementation:
When the thick B step peculiar to vessel docking of 18mm is welded, adopting this controller in conjunction with Witter power MZ-1000R automatic submerged arc welding machine, described welding step is:
1. opening controller power source, be switched to pulse regulation, regulate fusion penetration knob, the i.e. peak value of regulating impulse electric current, described pulsed current base value, waveform frequency and dutycycle are fixed value;
2. regulating the weldingvoltage on union-melt weld controlling box to technique prescribed value, welding speed to the stem elongation of technique prescribed value and welding wire, now parameter regulation completes.
3. give the energising of weld seam telltale, adjust size and the distance of two weld seam telltale hot spots, on the medullary ray of corresponding weld seam.
Relative to prior art, the dark fusion penetration union-melt weld controller of the present invention achieves the integrated of dark fusion penetration union-melt weld equipment; Under the prerequisite of same weld speed, effectively reduce heat input, improve the stirring action bottom molten bath simultaneously, thus when unclear, increase the fusion penetration of weld seam, reduce the requirement to welding operator, it is to increase welding efficiency, facilitate the benefit that enterprise produces.
Claims (7)
1. a dark fusion penetration union-melt weld controller, comprise multimode power supply, the single-phase pulse-width modulation circuit of PWM, common/pulse function switching circuit, LED signal display circuit and weld seam telltale, it is characterized in that: the single-phase pulse-width modulation circuit of described PWM is using pulse generation chip SG3526 as modulation pulse generator, pulse generation chip SG3526 process coordinates, with peripheral circuit, the output that can realize pulse signal: the single-phase pulse-width modulation circuit of described PWM is divided into A district pulse signal generation circuit and B district pulse input signal to form circuit; Described pulse generation chip SG3526 produces PWM waveform after diode D1 and diode D2, PWM waveform drives triode Q break-make action, this triode Q is as switch on and off, relay1 switch J1 is Japan's Omron synchro-switch rly., standard voltage 12V, the wherein generation of relay1 switch J1 major control pulsed current input signal, base value input signal is connected to normally closed pin, peak value input signal is in often opens pin, public end connection signal output terminal; When pulse signal is in high level, triode Q conducting, now relay1 switch J1 starts often to open by normally closed being switched to, and peak point current voltage control signal exports; When pulse signal is in lower level, relay1 switch J1 is in normally off conducting, and background current voltage control signal exports; Pulse signal is input to through demultiplexing circuit in original union-melt weld controlling box afterwards, then through arithmetical circuit rear drive thyristor, reaches pulse welding; By regulating frequency and the dutycycle of the resistance of potentiometer RP1 and potentiometer RP2 and adjustable waveform, just the frequency and dutycycle welding pulsed current can be set;
Described pulse signal generation circuit is by pulse generation chip SG3526, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, potentiometer RP1, potentiometer RP2, electric capacity C1, electric capacity C2, filter capacitor C3, filter capacitor C4, filter capacitor C5, diode D1, diode D2, power Vcc is formed, wherein resistance R1 and potentiometer RP1 series connection the 18 pin (18), connect that user's voltage is given and voltage feedback, form width modulation and export; 3rd pin (3) is connected by resistance R2 and is connected with the pressure feedback port of controlled plant; 4th pin (4) by series capacity C1 again and ground connection in parallel with the 6th pin (6) and the 7th pin (7) soft-start time is set; 5th pin (5) is just connected with power Vcc by electric capacity C2; 9th pin (9) is connected with ground with potentiometer RP2 by resistance R3, regulates pwm pulse frequency; 13 pin (13), the 16 pin (16) are in parallel after series diode D1, diode D2 respectively thus form pulse signal generation circuit;
Described pulse input signal forms electricity routing resistance R6, resistance R7, electric capacity C6, triode Q, diode D3, diode D4, relay1 switch J1, power Vcc is formed, the wherein positive pole series connection of power Vcc and relay1 switch J1 coil, the negative pole of relay1 switch J1 coil and the series connection of triode Q collector electrode, diode D3, D4 are in parallel with triode Q, relay1 switch J1 respectively, electric capacity C6 and triode Q base stage, emtting electrode parallel connection;
In described pulse signal generation circuit after diode D1, diode D2 parallel connection and pulse input signal form resistance R7 in circuit and be in series.
2. a kind of dark fusion penetration union-melt weld controller as claimed in claim 1, it is characterised in that: in described pulse signal generation circuit, largest duty cycle regulation range is 0��96%, and the regulation range of pulse-repetition is 1��50Hz.
3. a kind of dark fusion penetration union-melt weld controller as claimed in claim 1, it is characterised in that: described multimode power supply is positioned in controller, adopts two group voltage to export D-120W switch power supply, and input 220V sinusoidal ac, exports+12V and+5V voltage of direct-flow voltage regulation; This multimode power supply is connected by four pin connector pulse-width modulation circuits single-phase with PWM, common/pulse function switching circuit, LED signal display circuit and weld seam telltale; Described switching mode power supply transformer, provides+12V direct current to the single-phase pulse-width modulation circuit of PWM, common/pulse function switching circuit, weld seam telltale, provides+5V direct current to LED display circuit; Direct current after rectification is input in the single-phase pulse-width modulation circuit of PWM, thus realizes the range regulation to the pulsewidth of waveform and frequency, welding current base value/peak value.
4. a kind of dark fusion penetration union-melt weld controller as claimed in claim 1, it is characterised in that: described LED signal display circuit, is made up of display switching circuit and signals collecting display section; Display switching circuit can switch in pulsed current, waveform frequency and dutycycle three, the signal input terminus of signals collecting part is the middle pin of described controller electric current potentiometer RP3 and RP4, frequency potentiometer RP2, dutycycle potentiometer RP1, the power input of Signal aspects part is provided by multimode power supply, it is achieved the digitizing display of multiple signal.
5. a kind of dark fusion penetration union-melt weld controller as claimed in claim 1, it is characterised in that: the display switching circuit that described LED signal display circuit is made up of BCD dial and CD4051 analog switch and the signals collecting display section being made up of three and half digital watch ICL7107 and charactron form;
Described display switching circuit, can realize the switching of the base value peak value of pulsed current, pulse-repetition, each parameter of dutycycle by the 8421 of dial yards and CD4051 analog switch, the shown sequence of switching acquired signal;
Described signals collecting display section, duty cycle signals picks up from duty cycle adjustment potentiometer RP1, and pulse duration frequency signal picks up from potentiometer RP2, and pulsed current signal picks up from the middle pin of controller electric current potentiometer RP3 and RP4; Obtaining signal and reduce strength of signal by a point compressive resistance, obtain millivolt magnitude voltage signals, display numerical value is by multiple numeral method.
6. a kind of dark fusion penetration union-melt weld controller as claimed in claim 1, it is characterized in that: described common/pulse function switching circuit, it is made up of controller electric current potentiometer RP3 and RP4, union-melt weld controlling box electric current potentiometer RP5 ,+12VDC Omron intermediate relay switch J2-1, J2-2, J2-3 so that controller electric current potentiometer RP3 and RP4 and union-melt weld controlling box electric current potentiometer RP5 can switch; Union-melt weld controlling box electric current potentiometer RP5 tri-pins connect the normal-closed end of intermediate relay switch J2-1, intermediate relay switch J2-2, intermediate relay switch J2-3 tri-groups of switches respectively, and controller electric current potentiometer RP3 and RP4 tri-pins meet the Chang Kaiduan of intermediate relay switch J2-1, intermediate relay switch J2-2, intermediate relay switch J2-3 tri-groups of switches respectively.
7. a kind of dark fusion penetration union-melt weld controller as claimed in claim 1, it is characterized in that: described weld seam telltale, it is connected with multimode power supply by two heart yearns, weld seam telltale is made up of two red point-like laser modules in parallel, weld seam telltale is secured by bolts on welding gun, replaces needle-like telltale; Described weld seam telltale sends the adjustable red hot spot of two bundles so that it is corresponding with Weld pipe mill, can regulate the skew amount of welding wire in welding process in time.
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| CN104772554B (en) * | 2015-03-30 | 2017-01-04 | 天津大学 | The pulsed tungsten argon arc weld(ing) arc voltage sensing penetration control method of stepping electric arc welding type |
| CN106670624A (en) * | 2016-12-29 | 2017-05-17 | 上海沪临重工有限公司 | Submerged arc welding control method and device |
| CN109352129B (en) * | 2018-10-30 | 2020-09-15 | 唐山松下产业机器有限公司 | Method and device for controlling arc welding equipment |
| CN110238487B (en) * | 2019-05-22 | 2020-09-22 | 北京航空航天大学 | Medium plate aluminum alloy deep fusion welding system based on visual sensing and control method |
| CN112894079B (en) * | 2021-01-18 | 2022-12-09 | 南通博锐泰焊接科技有限公司 | Digital pulse type direct current manual arc welding method and arc welding machine applying same |
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| US4613743A (en) * | 1984-12-03 | 1986-09-23 | General Electric Company | Arc welding adaptive process control system |
| JPH09253847A (en) * | 1996-03-25 | 1997-09-30 | Tokyo Gas Co Ltd | Automatic welding equipment |
| CN201015813Y (en) * | 2006-09-29 | 2008-02-06 | 江苏科技大学 | Polarity-changing welding power source |
| CN102371416B (en) * | 2011-10-18 | 2014-03-12 | 江苏科技大学 | Single-switch energy-saving inverter welding machine |
| CN102416518B (en) * | 2011-12-14 | 2014-05-14 | 中冶辽宁德龙钢管有限公司 | Submerged arc welding controller |
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