CN103480947A - Control system of multifunctional shielded welding machine - Google Patents

Control system of multifunctional shielded welding machine Download PDF

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Publication number
CN103480947A
CN103480947A CN201310437467.8A CN201310437467A CN103480947A CN 103480947 A CN103480947 A CN 103480947A CN 201310437467 A CN201310437467 A CN 201310437467A CN 103480947 A CN103480947 A CN 103480947A
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CN
China
Prior art keywords
module
microprocessor
control system
welding machine
control
Prior art date
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Pending
Application number
CN201310437467.8A
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Chinese (zh)
Inventor
蔡朝辉
黄行胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG LAOSHIDUN WELDING EQUIPMENT CO Ltd
Original Assignee
ZHEJIANG LAOSHIDUN WELDING EQUIPMENT CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by ZHEJIANG LAOSHIDUN WELDING EQUIPMENT CO Ltd filed Critical ZHEJIANG LAOSHIDUN WELDING EQUIPMENT CO Ltd
Priority to CN201310437467.8A priority Critical patent/CN103480947A/en
Publication of CN103480947A publication Critical patent/CN103480947A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/10Other electric circuits therefor; Protective circuits; Remote controls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/10Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1006Power supply
    • B23K9/1075Parallel power supply, i.e. multiple power supplies or multiple inverters supplying a single arc or welding current
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/12Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
    • B23K9/124Circuits or methods for feeding welding wire
    • B23K9/125Feeding of electrodes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding Control (AREA)

Abstract

The invention provides a control system of a multifunctional shielded welding machine and belongs to the technical field of welding machines. The control system of the multifunctional shielded welding machine solves the problem that the existing control system of the welding machine is poor in anti-interference performance and low in output control accuracy. The control system of the multifunctional shielded welding machine comprises a microprocessor, a waveform input module, a man-machine exchange module, an adjustment output module, a control output module and a protection circuit module, wherein the waveform input module, the man-machine exchange module, the adjustment output module, the control output module and the protection circuit module are connected with the microprocessor. Plenty of welding parameter information is input to the microprocessor through the man-machine exchange module, and the microprocessor can perform processing analysis according to the received welding parameter information and control output of the adjustment output module according to processing analysis results. The control system of the multifunctional shielded welding machine further comprises two power supplies which are mutually independent and respectively include a simulation power supply for supplying power to modules of analog quantity and a digital power supply for supplying power to modules of digital quantity. The control system of the multifunctional shielded welding machine has the advantages of being good in anti-interference performance, accurate in control and simple in operation.

Description

The control system of multifunction protection welding machine
Technical field
The invention belongs to the welding machine technical field, relate to a kind of control system of multifunction protection welding machine.
Background technology
At present; traditional gas shielded welding machine is all generally current knob and the voltage knob of regulating respectively on wire feeding motor when controlling the welding machine power output; its separately respectively to current knob and voltage knob regulate be not easy match and regulate to best welding conditions (as forming; splash little etc.); and the welding process requirement to the operator is higher; not easy to operate, and function singleness, the manual electric arc welding function do not possessed.
Summary of the invention
The objective of the invention is to have the problems referred to above for existing technology, thereby proposed the good control system that controls to adjust more exactly the multifunction protection welding machine of output of a kind of anti-interference.
Purpose of the present invention can realize by following technical proposal: the control system of multifunction protection welding machine, comprise microprocessor and the Waveform Input module be connected with microprocessor, man-machine Switching Module, the regulation output module, control output module and holding circuit module, can input a plurality of welding parameter information to microprocessor by man-machine Switching Module, after described microprocessor can carry out Treatment Analysis according to the above-mentioned welding parameter information received and according to the output of Treatment Analysis output control regulation output module, it is characterized in that: also comprise two separate power supplies, power supply is respectively to the simulation power supply of the module for power supply of analog quantity and gives the digital power system power supply of the module for power supply of digital quantity.
In the control system of above-mentioned multifunction protection welding machine, described microprocessor is the ATMega16l-8AU single-chip microcomputer.
In the control system of above-mentioned multifunction protection welding machine; described Waveform Input module comprises that square-wave generator separates rear buffer circuit with the positive and negative half-wave be connected with square-wave generator, and after described positive and negative half-wave separates, buffer circuit is connected with microprocessor by the A/D change-over circuit.
In the control system of above-mentioned multifunction protection welding machine; described man-machine Switching Module comprises signal input module and the LCD interface display unit be connected with microprocessor, and described signal input module comprises sheet material type input block, sheet metal thickness input block, solder wire material input block, gage of wire input block, rifle switching signal input block, over-and under-voltage signal input unit and overtemperature signal input unit.
In the control system of above-mentioned multifunction protection welding machine; described regulation output module comprises regulates driving pulse width power ratio control output unit, adjusting motor given Control of Voltage wire feed rate unit and 12 binary channels D/A converters, and described adjusting driving pulse width power ratio control output unit is connected with microprocessor by 12 above-mentioned binary channels D/A converters with adjusting motor given Control of Voltage wire feed rate unit.
In the control system of above-mentioned multifunction protection welding machine, described control output module comprises control main loop circuit, the control air valve circuit be connected with microprocessor respectively and controls the wire feeding motor circuit.
In the control system of above-mentioned multifunction protection welding machine, described holding circuit module comprises overvoltage, overcurrent, overheated and short-circuit protection circuit.
Compared with prior art, the control system of multifunction protection welding machine has following several advantage:
1, store " welding expert system " database in microprocessor ATmega16L-8AU of the present invention, contain a large amount of sheet material types in this database, sheet metal thickness, the data parameters such as solder wire material and gage of wire, the welder is when using this system, only need to select above-mentioned these parameters of input, by regulating the electric current potentiometer (controlling the voltage of wire feeding motor) on wire feeding motor, microprocessor is according to data parameters and algorithm, calculate the corresponding voltage of the main control system power of coupling, thereby make, only need adjusting electric current potentiometer just can be intactly, control simply output and wlding, the most suitable power such as workpiece,
2, the present invention can save a large amount of test period of client and cost, thereby reduces costs;
3, the present invention is simple to operate, precise control.
The accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
In figure, 1, the Waveform Input module; 2, man-machine Switching Module; 3, regulation output module; 4, control output module.
The specific embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As shown in Figure 1, the control system of this multifunction protection welding machine comprises microprocessor and the Waveform Input module 1 be connected with microprocessor, man-machine Switching Module 2, regulation output module 3, control output module 4 and holding circuit module, can input a plurality of welding parameter information to microprocessor by man-machine Switching Module 2, after microprocessor can carry out Treatment Analysis according to the above-mentioned welding parameter information received and according to the output of Treatment Analysis output control regulation output module 3, also comprise two separate power supplies, power supply is respectively to the simulation power supply of the module for power supply of analog quantity and gives the digital power system power supply of the module for power supply of digital quantity.The independence of digital module and analog module power supply separately provides can effectively avoid mutual interference, improves the accuracy of output.On this basis, the power supply cabling makes VDD-to-VSS loop area minimum as far as possible, increases conductor width simultaneously, and places the bypass filter capacitor of 10~100uf near each power supply pin.Microprocessor in the present embodiment adopts the ATMega16l-8AU single-chip microcomputer.
Further, Waveform Input module 1 comprises that square-wave generator separates rear buffer circuit with the positive and negative half-wave be connected with square-wave generator, and after positive and negative half-wave separates, buffer circuit is connected with microprocessor by the A/D change-over circuit.
Man-machine Switching Module 2 comprises signal input module and the LCD interface display unit be connected with microprocessor, and signal input module comprises sheet material type input block, sheet metal thickness input block, solder wire material input block, gage of wire input block, rifle switching signal input block, over-and under-voltage signal input unit and overtemperature signal input unit.
Regulation output module 3 comprises regulates driving pulse width power ratio control output unit, adjusting motor given Control of Voltage wire feed rate unit and 12 binary channels D/A converters, regulates driving pulse width power ratio control output unit and is connected with microprocessor by 12 above-mentioned binary channels D/A converters with adjusting motor given Control of Voltage wire feed rate unit.
Controlling output module 4 comprises control main loop circuit, the control air valve circuit be connected with microprocessor respectively and controls the wire feeding motor circuit.
The holding circuit module comprises overvoltage, overcurrent, overheated and short-circuit protection circuit.These holding circuits have been arranged, and native system can carry out in real time overvoltage protection, overcurrent protection, overtemperature protection and short circuit and automatically protect.
In addition, the main circuit of this welding machine is suppressed by passive harmonic, rectifying and wave-filtering, and the IGBT full-bridge inverting, the intermediate frequency transformation, output rectification filter, the primary current sampling, the secondary current sampling, several parts of voltage sample form.Wherein the passive harmonic inhibition is to realize on ring-like ferrite by the power line by 380V, and this mode can effectively reduce interference and the pollution of higher hamonic wave to electrical network.The input rectifying filter circuit adopts three-phase commutation bridge, with the LC filter circuit, the input power rectifying and wave-filtering is become to the 510V dc source.Most important part is the IGBT full bridge inverter, by it, the DC inverter after rectifying and wave-filtering is become to the pulse ac electricity of 20KHZ, effectively improves dynamic characteristic and the welding performance of welding.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.

Claims (7)

1. the control system of multifunction protection welding machine, comprise microprocessor and the Waveform Input module (1) be connected with microprocessor, man-machine Switching Module (2), regulation output module (3), control output module (4) and holding circuit module, can input a plurality of welding parameter information to microprocessor by man-machine Switching Module (2), after described microprocessor can carry out Treatment Analysis according to the above-mentioned welding parameter information received and according to the output of Treatment Analysis output control regulation output module (3), it is characterized in that: also comprise two separate power supplies, power supply is respectively to the simulation power supply of the module for power supply of analog quantity and gives the digital power system power supply of the module for power supply of digital quantity.
2. the control system of multifunction protection welding machine according to claim 1, is characterized in that, described microprocessor is the ATMega16l-8AU single-chip microcomputer.
3. the control system of multifunction protection welding machine according to claim 2; it is characterized in that; described Waveform Input module (1) comprises that square-wave generator separates rear buffer circuit with the positive and negative half-wave be connected with square-wave generator, and after described positive and negative half-wave separates, buffer circuit is connected with microprocessor by the A/D change-over circuit.
4. the control system of multifunction protection welding machine according to claim 1; it is characterized in that; described man-machine Switching Module (2) comprises signal input module and the LCD interface display unit be connected with microprocessor, and described signal input module comprises sheet material type input block, sheet metal thickness input block, solder wire material input block, gage of wire input block, rifle switching signal input block, over-and under-voltage signal input unit and overtemperature signal input unit.
5. the control system of multifunction protection welding machine according to claim 4; it is characterized in that; described regulation output module (3) comprises regulates driving pulse width power ratio control output unit, adjusting motor given Control of Voltage wire feed rate unit and 12 binary channels D/A converters, and described adjusting driving pulse width power ratio control output unit is connected with microprocessor by 12 above-mentioned binary channels D/A converters with adjusting motor given Control of Voltage wire feed rate unit.
6. the control system of multifunction protection welding machine according to claim 1, is characterized in that, described control output module (4) comprises control main loop circuit, the control air valve circuit be connected with microprocessor respectively and controls the wire feeding motor circuit.
7. the control system of multifunction protection welding machine according to claim 1, is characterized in that, described holding circuit module comprises overvoltage, overcurrent, overheated and short-circuit protection circuit.
CN201310437467.8A 2013-09-24 2013-09-24 Control system of multifunctional shielded welding machine Pending CN103480947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103817417A (en) * 2014-02-20 2014-05-28 深圳市佳士科技股份有限公司 Unitary digital submerged-arc-welding control system with welding parameter expert database
CN103831513A (en) * 2014-03-12 2014-06-04 武汉科技大学 Energy-conservation control method and energy-conservation control device of electric arc welder
CN105880800A (en) * 2014-05-13 2016-08-24 李书进 Electric welding machine general circuit board design method
CN110347093A (en) * 2019-08-03 2019-10-18 山东大庚工程材料科技有限公司 A kind of whole grid welding equipment control system of high-strength intelligence
CN110977103A (en) * 2019-12-27 2020-04-10 逢来焊接技术(上海)有限公司 Novel digital pulse gas shielded welding control circuit
CN111001896A (en) * 2019-12-30 2020-04-14 唐山松下产业机器有限公司 Welding device, burn-back control device and method
CN112404670A (en) * 2020-10-28 2021-02-26 中国核工业第五建设有限公司 Automatic control system of submerged arc horizontal welding equipment
CN113145990A (en) * 2020-12-24 2021-07-23 上海宗镕电器有限公司 Digital electric welding machine system integrated with multifunctional welding mode

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US20070080154A1 (en) * 2004-04-16 2007-04-12 Ott Brian L Remote wire feeder using binary phase shift keying to modulate communications of command/control signals to be transmitted over a weld cable
CN101327544A (en) * 2007-06-18 2008-12-24 唐山松下产业机器有限公司 AC output coordination control method and control device
CN201913358U (en) * 2010-12-30 2011-08-03 浙江劳士顿焊接设备有限公司 Control system of carbon dioxide gas shielded welding machine
CN102248255A (en) * 2011-06-15 2011-11-23 太原市星云焊接设备有限公司 Fully-digital multifunctional no-spatter inverse welding machine
CN203448848U (en) * 2013-09-24 2014-02-26 浙江劳士顿焊接设备有限公司 Control system of multifunctional protective welding machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070080154A1 (en) * 2004-04-16 2007-04-12 Ott Brian L Remote wire feeder using binary phase shift keying to modulate communications of command/control signals to be transmitted over a weld cable
CN101327544A (en) * 2007-06-18 2008-12-24 唐山松下产业机器有限公司 AC output coordination control method and control device
CN201913358U (en) * 2010-12-30 2011-08-03 浙江劳士顿焊接设备有限公司 Control system of carbon dioxide gas shielded welding machine
CN102248255A (en) * 2011-06-15 2011-11-23 太原市星云焊接设备有限公司 Fully-digital multifunctional no-spatter inverse welding machine
CN203448848U (en) * 2013-09-24 2014-02-26 浙江劳士顿焊接设备有限公司 Control system of multifunctional protective welding machine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103817417A (en) * 2014-02-20 2014-05-28 深圳市佳士科技股份有限公司 Unitary digital submerged-arc-welding control system with welding parameter expert database
CN103817417B (en) * 2014-02-20 2016-04-06 深圳市佳士科技股份有限公司 There is the unified digital submerged-arc welding control system of welding parameter experts database
CN103831513A (en) * 2014-03-12 2014-06-04 武汉科技大学 Energy-conservation control method and energy-conservation control device of electric arc welder
CN103831513B (en) * 2014-03-12 2016-03-16 武汉科技大学 The energy-saving control method of arc welder and device
CN105880800A (en) * 2014-05-13 2016-08-24 李书进 Electric welding machine general circuit board design method
CN105880800B (en) * 2014-05-13 2020-04-14 广东联洋科技有限公司 Design method of universal circuit board of electric welding machine
CN110347093A (en) * 2019-08-03 2019-10-18 山东大庚工程材料科技有限公司 A kind of whole grid welding equipment control system of high-strength intelligence
CN110977103A (en) * 2019-12-27 2020-04-10 逢来焊接技术(上海)有限公司 Novel digital pulse gas shielded welding control circuit
CN110977103B (en) * 2019-12-27 2021-10-29 逢来焊接技术(上海)有限公司 Novel digital pulse gas shielded welding control circuit
CN111001896A (en) * 2019-12-30 2020-04-14 唐山松下产业机器有限公司 Welding device, burn-back control device and method
CN112404670A (en) * 2020-10-28 2021-02-26 中国核工业第五建设有限公司 Automatic control system of submerged arc horizontal welding equipment
CN113145990A (en) * 2020-12-24 2021-07-23 上海宗镕电器有限公司 Digital electric welding machine system integrated with multifunctional welding mode

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