WO2017063252A1 - Alternating-current and direct-current consumable electrode welder - Google Patents

Alternating-current and direct-current consumable electrode welder Download PDF

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Publication number
WO2017063252A1
WO2017063252A1 PCT/CN2015/095870 CN2015095870W WO2017063252A1 WO 2017063252 A1 WO2017063252 A1 WO 2017063252A1 CN 2015095870 W CN2015095870 W CN 2015095870W WO 2017063252 A1 WO2017063252 A1 WO 2017063252A1
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module
welding
input
current
switch module
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PCT/CN2015/095870
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French (fr)
Chinese (zh)
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刘昇澔
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刘昇澔
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Publication of WO2017063252A1 publication Critical patent/WO2017063252A1/en

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    • 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
    • B23K9/16Arc welding or cutting making use of shielding gas
    • B23K9/173Arc welding or cutting making use of shielding gas and of a consumable electrode
    • 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
    • B23K9/1043Power supply characterised by the electric circuit

Definitions

  • the invention relates to the field of welding machines, in particular to an AC-DC welding machine.
  • the conventional fusion welding machine adopts only the direct welding mode, the welding wire is connected to the positive pole of the welding torch, the workpiece is connected to the negative electrode in the welding torch, and the fuse speed is fast, but the heat of the molten welding wire and the molten base material cannot be controlled; therefore, when welding the thin plate, A certain amount of heat is needed to melt the welding wire. At this time, it is easy to cause the input heat of the base material to be too large, and the plate is easily deformed and perforated. In the case of thick plate welding, since the base material requires a large input heat, the fuse time needs to be followed by the mother. The material melting time is matched and the welding speed is reduced.
  • the present invention provides an AC-DC melting electrode welder to effectively improve welding quality and welding efficiency.
  • an AC/DC melting pole welding machine the welding machine comprises a melting pole welding power source module and a welding gun, and an AC/DC conversion control module is connected between the melting pole welding power source module and the welding gun And the input end of the welding torch establishes a feedback connection with the molten-pole welding power supply module to feed back the output current parameter of the welding torch and the output voltage parameter to the molten-pole welding power supply module;
  • the AC/DC conversion control module is used for Controlling the conversion of the positive and negative polarities of the two output ends of the molten-pole welding power supply module, and controlling the time ratio between the positive-on time and the negative-on time of the two output ends of the molten-pole welding power supply module, thereby realizing an AC-DC melting electrode welder AC or DC welding to control the heat demand of the workpiece and the wire to achieve the best welding results, effectively improve the welding quality and welding speed.
  • the AC/DC conversion control module has an input positive terminal, an input negative terminal, a first output terminal, and a second output terminal
  • the AC/DC conversion control module includes a first switch module, a second switch module, and a third switch. a module and a fourth switch module; the input positive terminal, the input end of the first switch module, the output end of the first switch module, the input end of the second switch module, the output end of the second switch module, and the input negative terminal Connected in sequence, the input positive end, the input end of the third switch module, the output end of the third switch module, the input end of the fourth switch module, the output end of the fourth switch module, and the input negative end are sequentially connected; One end of the third switch module and the fourth switch module is connected to the first output end, and one end of the third switch module and the fourth switch module is connected to the second output end.
  • an LC series circuit is connected in series between the second output end and the interconnected end of the third switch module and the fourth switch module.
  • the molten-pole welding power supply module comprises a power input module, a DC constant voltage module, a chopper control module, and a constant current feedback module, which are sequentially connected, and further includes a control system module, a current sampling module and a voltage sampling module;
  • the input end of the current sampling module has at least two current input interfaces, wherein one current input interface is connected to the output end of the DC constant voltage module, and the other current input interface is connected to the input end of the welding gun;
  • the input end of the voltage sampling module is at least
  • the utility model has two voltage input interfaces, wherein one voltage input interface is connected with the output end of the DC constant voltage module, and another voltage input interface is connected with the input end of the welding gun; the output end of the current sampling module and the output end of the voltage sampling module are both Control system module connection.
  • the molten-pole welding power supply module further includes a human-machine interface operation and display module connected to the control system module; preferably, the control system module is provided with a synchronous communication interface for communicating with an external device.
  • the AC/DC melting electrode welding machine provided by the invention adds an AC/DC conversion control module to the original DC melting electrode welding machine to control the transformation of the positive and negative polarities of the two output ends of the welding machine, and controls the two output ends of the welding machine.
  • the ratio of the positive on-time to the negative on-time is achieved to achieve AC or DC welding of the AC-DC fusion welder, thereby controlling the heat demand of the workpiece and the wire to achieve the best welding effect, thereby effectively improving the welding quality and welding. speed.
  • FIG. 1 is a schematic block diagram of an AC/DC melting electrode welder according to an embodiment of the present invention
  • FIG. 2 is a schematic block diagram showing a specific circuit principle of the AC-DC welding machine according to the embodiment of the present invention
  • FIG. 3 is a schematic block diagram of an AC/DC conversion control module according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a circuit principle of the AC/DC conversion control module according to an embodiment of the present invention.
  • an AC-DC fusion welding machine includes a molten-pole welding power supply module and a welding torch, and an AC-DC conversion control module is connected between the molten-pole welding power supply module and the welding torch, and The input end of the welding torch establishes a feedback connection with the molten-pole welding power supply module to feed back the output current parameter of the welding torch and the output voltage parameter to the molten-pole welding power supply module;
  • the AC/DC conversion control module is configured to control the Converting the positive and negative polarities of the two output ends of the molten-pole welding power supply module, and controlling the time ratio between the positive-on time and the negative-on time of the two output ends of the molten-pole welding power supply module, thereby realizing the alternating current of the AC-DC fusion welding machine or DC welding, which controls the heat demand of the workpiece and the wire to achieve the best welding effect, effectively improve the welding quality and welding speed.
  • the molten-pole welding power supply module preferably includes a power input module, a DC constant voltage module, a chopper control module, and a constant current feedback module, which are sequentially connected, and further includes a control system module, a current sampling module, and a voltage sampling module;
  • the input end of the current sampling module has at least two current input interfaces, wherein one current input interface is connected to the output end of the DC constant voltage module, and the other current input interface is connected to the input end of the welding gun;
  • the input end of the module has at least two voltage input interfaces, wherein one voltage input interface is connected with the output end of the DC constant voltage module, and the other voltage input interface is connected with the input end of the welding gun; the output end of the current sampling module and the voltage sampling module The outputs are connected to the control system module.
  • the molten-pole welding power supply module further includes a human-machine interface operation and display module connected to the control system module; preferably, the control system module is provided with a synchronous communication interface for communicating with an external device.
  • the power input module the DC constant voltage module, the chopper control module, the constant current feedback module, the current sampling module, the voltage sampling module, the control system module, the human-machine interface operation, and the display module are all functions.
  • the modules are all prior art, and their working principle or specific components thereof will not be described in detail herein.
  • multiple functional modules may be integrated into one circuit module according to actual needs to implement their corresponding functions, or the functions of some functional modules may not only use existing hardware circuits or
  • the device can realize its function, and can also be realized by combining hardware and software; for example, the current sampling module and the voltage sampling module can be integrated in the control system module, or the functions of the current sampling module and the voltage sampling module can pass through the hardware in the control system module. It can be realized by means of software combination; it can also be realized by dividing one function module into multiple function modules, such as dividing man-machine interface operation and display module into man-machine interface operation module, man-machine interface operation module, two function modules, etc. .
  • the functional modules in the present invention are not limited to any particular combination of hardware and software; likewise, the AC/DC conversion control module is not limited to hardware, or hardware and software.
  • the AC/DC conversion control module is further described in detail below. As shown in FIG. 3, the AC/DC conversion control module has an input positive terminal, an input negative terminal, a first output terminal, and a second output terminal.
  • the AC-DC conversion control module includes a first switch module, a second switch module, a third switch module, and a fourth switch module; the input positive end, the input end of the first switch module, the output end of the first switch module, and the The input end of the second switch module, the output end of the second switch module, and the input negative end are sequentially connected, and the input positive end, the input end of the third switch module, the output end of the third switch module, and the fourth switch module An input end, an output end of the fourth switch module, and the input negative end are sequentially connected; an interconnected end of the third switch module and the fourth switch module is used as the first output end, and the third switch module is An interconnected end of the fourth switch module serves as the second output.
  • an LC series circuit is connected in series between the second output end and one end of
  • the first switch module, the second switch module, the third switch module and the fourth switch module are the same switch circuit, and the switch circuit comprises a switching power device, a capacitor and a diode, and the capacitors are connected in parallel Connected between the drain and the source of the switching power device, or the capacitor is connected in parallel between the collector and the emitter of the switching power device; the anode of the diode and the drain of the switching power device a pole or a collector connection, a cathode of the diode being connected to a source or an emitter of the switching power device; a drain or a collector of the switching power device as an input terminal of each switching module, the switching power device A source or an emitter is used as an output of each switch module; a gate or a base of the switching power device is connected to a switch signal source for controlling whether the switching power device is turned on or off.
  • the switching power device is preferably a MOS tube or a triode.
  • FIG. 4 is a schematic diagram of a specific circuit of the AC/DC conversion control module.
  • the switching power device in this embodiment uses a MOS transistor as a specific embodiment; as shown in FIG. 4, the AC/DC conversion control
  • the module includes MOS tubes Q1, Q2 Q3, Q4, diodes D1, D2, D3, D4, capacitors C1, C2, C3, C4, C5 and inductor L1.
  • the inductor L1 and the capacitor C5 are connected in series to form the LC series circuit.
  • the connection relationship of components such as MOS transistors, diodes, and capacitors is as shown in FIG. 4 and will not be described in detail herein.
  • the gate of each MOS transistor is connected to a switching signal source (not shown in FIG. 4) for controlling the on or off of each MOS transistor.
  • the voltage UAB of the two output terminals of the AC/DC conversion control module is always positive (DC); and when the MOS transistors Q2 and Q3 are turned on, Q1 and Q4 are turned off. , the voltage U of the two output ends of the AC/DC conversion control module AB is always negative (DC); when the above two states are switched in turn, the voltage U AB of the two output terminals of the AC/DC conversion control module The positive and negative voltages are also converted to achieve AC voltage characteristics.
  • the time ratio between the positive turn-on time and the negative turn-on time of the two output ends of the molten-pole welding power supply module can be controlled, and then according to the specific welding material requirements. Control the heat demand of the workpiece and the wire to achieve the best welding effect and effectively improve the welding quality and welding speed.
  • the thin plate material when welding the thin plate material, by controlling the time ratio between the positive on-time and the negative on-time of the two output ends of the molten-pole welding power supply module, that is, controlling the two poles on the welding torch (ie, the melting pole for connecting with the welding wire) And the ratio of the positive on-time and the negative on-time of the solder joint on the welding gun to the solder material, the heat generated on the wire is large during soldering, and the solder material (ie, the base material) Less heat is generated to prevent deformation or perforation of the welding material, which effectively improves the welding quality; and when welding the thick plate material, by controlling the time ratio of the positive electrode on-time of the two poles on the welding torch to the time of the negative electrode on-time, in the welding When the heat generated on the welding material is large, the heat generated on the welding wire is also large, and the melting speed of the welding wire is increased, thereby effectively increasing the welding speed.

Abstract

An alternating-current and direct-current consumable electrode welder, comprising: a consumable electrode welding power supply module and a welding gun. An alternating-current and direct-current transformation control module is connected between the consumable electrode welding power supply module and the welding gun, and an input end of the welding gun and the consumable electrode welding power supply module establish a feedback connection so as to feed back an output current parameter and an output voltage parameter of the welding gun to the consumable electrode welding power supply module; and the alternating-current and direct-current transformation control module is used for controlling the transformation between positive and negative polarities of the two output ends of the consumable electrode welding power supply module, and controlling a time ratio between a positive electrode connection time and a negative electrode connection time of the two output ends of the consumable electrode welding power supply module to realize alternating-current or direct-current welding of the alternating-current and direct-current consumable electrode welder so as to control a heat requirement of a workpiece and a weld wire to achieve the best welding effect and effectively improve the welding quality and the welding speed.

Description

一种交直流熔化极焊机  AC/DC melting electrode welder
技术领域 Technical field
本发明涉及焊机领域,尤其涉及一种交直流熔化极焊机。 The invention relates to the field of welding machines, in particular to an AC-DC welding machine.
背景技术 Background technique
传统的熔化极焊机只采用直流的焊接模式,焊丝接焊枪的正极,工件接焊枪中的负极,熔丝速度快,但是熔化焊丝与熔化母材的热量不能控制;因此,在焊接薄板时由于需要一定的热量来熔化焊丝,此时很容易导致母材输入热量太大,板材容易变形及穿孔;而在厚板焊接时,由于母材需要较大的输入热量,导致熔丝时间需要跟母材熔化时间匹配,焊接速度下降。 The conventional fusion welding machine adopts only the direct welding mode, the welding wire is connected to the positive pole of the welding torch, the workpiece is connected to the negative electrode in the welding torch, and the fuse speed is fast, but the heat of the molten welding wire and the molten base material cannot be controlled; therefore, when welding the thin plate, A certain amount of heat is needed to melt the welding wire. At this time, it is easy to cause the input heat of the base material to be too large, and the plate is easily deformed and perforated. In the case of thick plate welding, since the base material requires a large input heat, the fuse time needs to be followed by the mother. The material melting time is matched and the welding speed is reduced.
发明内容 Summary of the invention
为了克服现有技术中的不足,本发明提供一种交直流熔化极焊机,以有效提高焊接质量和焊接效率。 In order to overcome the deficiencies in the prior art, the present invention provides an AC-DC melting electrode welder to effectively improve welding quality and welding efficiency.
本发明是通过以下技术方案实现的:一种交直流熔化极焊机,所述焊机包括熔化极焊接电源模块与焊枪,所述熔化极焊接电源模块与焊枪之间连接有交直流变换控制模块,且所述焊枪的输入端与所述熔化极焊接电源模块建立反馈连接,以将焊枪的输出电流参数以及输出电压参数反馈至所述熔化极焊接电源模块;所述交直流变换控制模块用于控制所述熔化极焊接电源模块的两输出端正负极性的变换,并控制所述熔化极焊接电源模块的两输出端的正极接通时间与负极接通时间的时间比,实现交直流熔化极焊机的交流或直流焊接,从而控制工件与焊丝的热量需求,以达到最佳的焊接效果,有效提高焊接质量和焊接速度。 The invention is realized by the following technical solutions: an AC/DC melting pole welding machine, the welding machine comprises a melting pole welding power source module and a welding gun, and an AC/DC conversion control module is connected between the melting pole welding power source module and the welding gun And the input end of the welding torch establishes a feedback connection with the molten-pole welding power supply module to feed back the output current parameter of the welding torch and the output voltage parameter to the molten-pole welding power supply module; the AC/DC conversion control module is used for Controlling the conversion of the positive and negative polarities of the two output ends of the molten-pole welding power supply module, and controlling the time ratio between the positive-on time and the negative-on time of the two output ends of the molten-pole welding power supply module, thereby realizing an AC-DC melting electrode welder AC or DC welding to control the heat demand of the workpiece and the wire to achieve the best welding results, effectively improve the welding quality and welding speed.
优选地,所述交直流变换控制模块具有输入正端、输入负端、第一输出端以及第二输出端,所述交直流变换控制模块包括第一开关模块、第二开关模块、第三开关模块以及第四开关模块;所述输入正端、第一开关模块的输入端、第一开关模块的输出端、第二开关模块的输入端、第二开关模块的输出端以及所述输入负端依次连接,所述输入正端、第三开关模块的输入端、第三开关模块的输出端、第四开关模块的输入端、第四开关模块的输出端以及所述输入负端依次连接;所述第三开关模块与第四开关模块的相互连接的一端作为所述第一输出端,所述第三开关模块与第四开关模块的相互连接的一端作为所述第二输出端。 Preferably, the AC/DC conversion control module has an input positive terminal, an input negative terminal, a first output terminal, and a second output terminal, and the AC/DC conversion control module includes a first switch module, a second switch module, and a third switch. a module and a fourth switch module; the input positive terminal, the input end of the first switch module, the output end of the first switch module, the input end of the second switch module, the output end of the second switch module, and the input negative terminal Connected in sequence, the input positive end, the input end of the third switch module, the output end of the third switch module, the input end of the fourth switch module, the output end of the fourth switch module, and the input negative end are sequentially connected; One end of the third switch module and the fourth switch module is connected to the first output end, and one end of the third switch module and the fourth switch module is connected to the second output end.
进一步地,所述第二输出端与所述第三开关模块与第四开关模块的相互连接的一端之间串联连接有LC串联电路。 Further, an LC series circuit is connected in series between the second output end and the interconnected end of the third switch module and the fourth switch module.
优选地,所述熔化极焊接电源模块包括依次连接的电源输入模块、直流恒压模块、斩波控制模块、以及恒流反馈模块,还包括有控制系统模块、电流取样模块以及电压取样模块;所述电流取样模块的输入端至少具有两电流输入接口,其中一电流输入接口与直流恒压模块的输出端连接,另一电流输入接口与焊枪的输入端连接;所述电压取样模块的输入端至少具有两电压输入接口,其中一电压输入接口与直流恒压模块的输出端连接,另一电压输入接口与焊枪的输入端连接;所述电流取样模块的输出端、电压取样模块的输出端均与控制系统模块连接。 Preferably, the molten-pole welding power supply module comprises a power input module, a DC constant voltage module, a chopper control module, and a constant current feedback module, which are sequentially connected, and further includes a control system module, a current sampling module and a voltage sampling module; The input end of the current sampling module has at least two current input interfaces, wherein one current input interface is connected to the output end of the DC constant voltage module, and the other current input interface is connected to the input end of the welding gun; the input end of the voltage sampling module is at least The utility model has two voltage input interfaces, wherein one voltage input interface is connected with the output end of the DC constant voltage module, and another voltage input interface is connected with the input end of the welding gun; the output end of the current sampling module and the output end of the voltage sampling module are both Control system module connection.
进一步地,所述熔化极焊接电源模块还包括与控制系统模块连接的人机界面操作及显示模块;较佳地,所述控制系统模块设置有用于与外部设备进行通信连接的同步通信接口。 Further, the molten-pole welding power supply module further includes a human-machine interface operation and display module connected to the control system module; preferably, the control system module is provided with a synchronous communication interface for communicating with an external device.
本发明提供的交直流熔化极焊机,通过在原有直流熔化极焊机的基础上增加一交直流变换控制模块,以控制焊机的两输出端正负极性的变换,并控制焊机两输出端的正极接通时间与负极接通时间的时间比,实现交直流熔化极焊机的交流或直流焊接,从而控制工件与焊丝的热量需求,以达到最佳的焊接效果,进而有效提高焊接质量和焊接速度。 The AC/DC melting electrode welding machine provided by the invention adds an AC/DC conversion control module to the original DC melting electrode welding machine to control the transformation of the positive and negative polarities of the two output ends of the welding machine, and controls the two output ends of the welding machine. The ratio of the positive on-time to the negative on-time is achieved to achieve AC or DC welding of the AC-DC fusion welder, thereby controlling the heat demand of the workpiece and the wire to achieve the best welding effect, thereby effectively improving the welding quality and welding. speed.
附图说明 DRAWINGS
附图1为本发明实施例中所述交直流熔化极焊机的原理框图; 1 is a schematic block diagram of an AC/DC melting electrode welder according to an embodiment of the present invention;
附图2为本发明实施例中所述交直流熔化极焊机具体的电路原理示意框图; 2 is a schematic block diagram showing a specific circuit principle of the AC-DC welding machine according to the embodiment of the present invention;
附图3为本发明实施例中所述交直流变换控制模块的原理框图; 3 is a schematic block diagram of an AC/DC conversion control module according to an embodiment of the present invention;
附图4为本发明实施例中所述交直流变换控制模块具体的电路原理示图。 4 is a schematic diagram of a circuit principle of the AC/DC conversion control module according to an embodiment of the present invention.
具体实施方式 detailed description
为了便于本领域技术人员的理解,下面结合附图对本发明作进一步的描述。 In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings.
如附图1所示,一种交直流熔化极焊机,所述焊机包括熔化极焊接电源模块与焊枪,所述熔化极焊接电源模块与焊枪之间连接有交直流变换控制模块,且所述焊枪的输入端与所述熔化极焊接电源模块建立反馈连接,以将焊枪的输出电流参数以及输出电压参数反馈至所述熔化极焊接电源模块;所述交直流变换控制模块用于控制所述熔化极焊接电源模块的两输出端正负极性的变换,并控制所述熔化极焊接电源模块的两输出端的正极接通时间与负极接通时间的时间比,实现交直流熔化极焊机的交流或直流焊接,从而控制工件与焊丝的热量需求,以达到最佳的焊接效果,有效提高焊接质量和焊接速度。 As shown in FIG. 1 , an AC-DC fusion welding machine includes a molten-pole welding power supply module and a welding torch, and an AC-DC conversion control module is connected between the molten-pole welding power supply module and the welding torch, and The input end of the welding torch establishes a feedback connection with the molten-pole welding power supply module to feed back the output current parameter of the welding torch and the output voltage parameter to the molten-pole welding power supply module; the AC/DC conversion control module is configured to control the Converting the positive and negative polarities of the two output ends of the molten-pole welding power supply module, and controlling the time ratio between the positive-on time and the negative-on time of the two output ends of the molten-pole welding power supply module, thereby realizing the alternating current of the AC-DC fusion welding machine or DC welding, which controls the heat demand of the workpiece and the wire to achieve the best welding effect, effectively improve the welding quality and welding speed.
如附图2所示,所述熔化极焊接电源模块优选包括依次连接的电源输入模块、直流恒压模块、斩波控制模块、以及恒流反馈模块,还包括有控制系统模块、电流取样模块以及电压取样模块;所述电流取样模块的输入端至少具有两电流输入接口,其中一电流输入接口与直流恒压模块的输出端连接,另一电流输入接口与焊枪的输入端连接;所述电压取样模块的输入端至少具有两电压输入接口,其中一电压输入接口与直流恒压模块的输出端连接,另一电压输入接口与焊枪的输入端连接;所述电流取样模块的输出端、电压取样模块的输出端均与控制系统模块连接。 As shown in FIG. 2, the molten-pole welding power supply module preferably includes a power input module, a DC constant voltage module, a chopper control module, and a constant current feedback module, which are sequentially connected, and further includes a control system module, a current sampling module, and a voltage sampling module; the input end of the current sampling module has at least two current input interfaces, wherein one current input interface is connected to the output end of the DC constant voltage module, and the other current input interface is connected to the input end of the welding gun; The input end of the module has at least two voltage input interfaces, wherein one voltage input interface is connected with the output end of the DC constant voltage module, and the other voltage input interface is connected with the input end of the welding gun; the output end of the current sampling module and the voltage sampling module The outputs are connected to the control system module.
另外,所述熔化极焊接电源模块还包括与控制系统模块连接的人机界面操作及显示模块;较佳地,所述控制系统模块设置有用于与外部设备进行通信连接的同步通信接口。 In addition, the molten-pole welding power supply module further includes a human-machine interface operation and display module connected to the control system module; preferably, the control system module is provided with a synchronous communication interface for communicating with an external device.
本发明实施例中,所述的电源输入模块、直流恒压模块、斩波控制模块、恒流反馈模块、电流取样模块、电压取样模块,控制系统模块、人机界面操作及显示模块等各功能模块均为现有技术,在此对其工作原理或其具体组成不再详述。但需说明的是,上述各功能模块中,其可以根据实际需要将多个功能模块集成在一个电路模块来实现其相应的功能,或者某些功能模块的功能不仅可以用现有的硬件电路或装置来实现其功能,还可以通过硬件与软件结合来实现;如电流取样模块、电压取样模块可以集成在控制系统模块中,或者电流取样模块、电压取样模块的功能可以在控制系统模块内通过硬件与软件结合的方式来实现;还可将某一个功能模块分为多个功能模块来实现,如将人机界面操作及显示模块分为人机界面操作模块、人机界面操作模块两个功能模块等。总之,本发明中的各功能模块不限制于任何特定的硬件和软件结合;同样,包括所述交直流变换控制模块也不限于硬件,或硬件与软件结合。 In the embodiment of the invention, the power input module, the DC constant voltage module, the chopper control module, the constant current feedback module, the current sampling module, the voltage sampling module, the control system module, the human-machine interface operation, and the display module are all functions. The modules are all prior art, and their working principle or specific components thereof will not be described in detail herein. However, it should be noted that, among the above functional modules, multiple functional modules may be integrated into one circuit module according to actual needs to implement their corresponding functions, or the functions of some functional modules may not only use existing hardware circuits or The device can realize its function, and can also be realized by combining hardware and software; for example, the current sampling module and the voltage sampling module can be integrated in the control system module, or the functions of the current sampling module and the voltage sampling module can pass through the hardware in the control system module. It can be realized by means of software combination; it can also be realized by dividing one function module into multiple function modules, such as dividing man-machine interface operation and display module into man-machine interface operation module, man-machine interface operation module, two function modules, etc. . In summary, the functional modules in the present invention are not limited to any particular combination of hardware and software; likewise, the AC/DC conversion control module is not limited to hardware, or hardware and software.
以下对所述的交直流变换控制模块作进一步的详细说明:如附图3所示,所述交直流变换控制模块具有输入正端、输入负端、第一输出端以及第二输出端,所述交直流变换控制模块包括第一开关模块、第二开关模块、第三开关模块以及第四开关模块;所述输入正端、第一开关模块的输入端、第一开关模块的输出端、第二开关模块的输入端、第二开关模块的输出端以及所述输入负端依次连接,所述输入正端、第三开关模块的输入端、第三开关模块的输出端、第四开关模块的输入端、第四开关模块的输出端以及所述输入负端依次连接;所述第三开关模块与第四开关模块的相互连接的一端作为所述第一输出端,所述第三开关模块与第四开关模块的相互连接的一端作为所述第二输出端。另外,所述第二输出端与所述第三开关模块与第四开关模块的相互连接的一端之间串联连接有LC串联电路。 The AC/DC conversion control module is further described in detail below. As shown in FIG. 3, the AC/DC conversion control module has an input positive terminal, an input negative terminal, a first output terminal, and a second output terminal. The AC-DC conversion control module includes a first switch module, a second switch module, a third switch module, and a fourth switch module; the input positive end, the input end of the first switch module, the output end of the first switch module, and the The input end of the second switch module, the output end of the second switch module, and the input negative end are sequentially connected, and the input positive end, the input end of the third switch module, the output end of the third switch module, and the fourth switch module An input end, an output end of the fourth switch module, and the input negative end are sequentially connected; an interconnected end of the third switch module and the fourth switch module is used as the first output end, and the third switch module is An interconnected end of the fourth switch module serves as the second output. In addition, an LC series circuit is connected in series between the second output end and one end of the third switch module and the fourth switch module.
优选地,所述第一开关模块、第二开关模块、第三开关模块以及第四开关模块为相同的开关电路,所述开关电路包括一开关功率器件,一电容以及一二极管,所述电容并联连接于所述开关功率器件的漏极与源极之间,或者所述电容并联连接于所述开关功率器件的集电极与发射极之间;所述二极管的正极与所述开关功率器件的漏极或集电极连接,所述二极管的负极与所述开关功率器件的源极或发射极连接;所述开关功率器件的漏极或集电极作为各开关模块的输入端,所述开关功率器件的源极或发射极作为各开关模块的输出端;所述开关功率器件的栅极或基极连接有一用于控制开关功率器件导通或截止的开关信号源。本发明实施例中,所述开关功率器件优选为MOS管或三极管。 Preferably, the first switch module, the second switch module, the third switch module and the fourth switch module are the same switch circuit, and the switch circuit comprises a switching power device, a capacitor and a diode, and the capacitors are connected in parallel Connected between the drain and the source of the switching power device, or the capacitor is connected in parallel between the collector and the emitter of the switching power device; the anode of the diode and the drain of the switching power device a pole or a collector connection, a cathode of the diode being connected to a source or an emitter of the switching power device; a drain or a collector of the switching power device as an input terminal of each switching module, the switching power device A source or an emitter is used as an output of each switch module; a gate or a base of the switching power device is connected to a switch signal source for controlling whether the switching power device is turned on or off. In the embodiment of the invention, the switching power device is preferably a MOS tube or a triode.
附图4为所述交直流变换控制模块具体的电路原理示图,本实施例中的所述的开关功率器件以MOS管为具体实施例;如附图4所示,所述交直流变换控制模块包括MOS管Q1、Q2、 Q3、 Q4,二极管D1、D2、 D3、 D4,电容C1、C2、C3、C4、C5以及电感L1。其中,电感L1与电容C5串联连接组成所述LC串联电路。各MOS管、二极管以及电容等元件的连接关系如附图4所示,这里不再详述。另外,各MOS管的栅极连接一开关信号源(图4中并未画出),用于控制控制各MOS管的导通或截止。 4 is a schematic diagram of a specific circuit of the AC/DC conversion control module. The switching power device in this embodiment uses a MOS transistor as a specific embodiment; as shown in FIG. 4, the AC/DC conversion control The module includes MOS tubes Q1, Q2 Q3, Q4, diodes D1, D2, D3, D4, capacitors C1, C2, C3, C4, C5 and inductor L1. The inductor L1 and the capacitor C5 are connected in series to form the LC series circuit. The connection relationship of components such as MOS transistors, diodes, and capacitors is as shown in FIG. 4 and will not be described in detail herein. In addition, the gate of each MOS transistor is connected to a switching signal source (not shown in FIG. 4) for controlling the on or off of each MOS transistor.
当MOS管Q1、Q4导通,Q2、Q3截止时,则所述交直流变换控制模块两输出端的电压UAB恒为正(直流);而当MOS管Q2、Q3导通,Q1、Q4截止时,则所述交直流变换控制模块两输出端的电压U AB 恒为负(直流);当以上两种状态轮流切换时,所述交直流变换控制模块两输出端的电压U AB 也进行着正负电压的变换,从而实现交流电压特性。通过控制各MOS管的导通或截止的时间,即可实现控制所述熔化极焊接电源模块的两输出端的正极接通时间与负极接通时间的时间比,进而可根据具体的焊接材料的需求,控制工件与焊丝的热量需求,以达到最佳的焊接效果,有效提高焊接质量和焊接速度。 When the MOS transistors Q1 and Q4 are turned on, and Q2 and Q3 are turned off, the voltage UAB of the two output terminals of the AC/DC conversion control module is always positive (DC); and when the MOS transistors Q2 and Q3 are turned on, Q1 and Q4 are turned off. , the voltage U of the two output ends of the AC/DC conversion control module AB is always negative (DC); when the above two states are switched in turn, the voltage U AB of the two output terminals of the AC/DC conversion control module The positive and negative voltages are also converted to achieve AC voltage characteristics. By controlling the turn-on or turn-off time of each MOS transistor, the time ratio between the positive turn-on time and the negative turn-on time of the two output ends of the molten-pole welding power supply module can be controlled, and then according to the specific welding material requirements. Control the heat demand of the workpiece and the wire to achieve the best welding effect and effectively improve the welding quality and welding speed.
例如,当焊接薄板材料时,通过控制所述熔化极焊接电源模块的两输出端的正极接通时间与负极接通时间的时间比,即控制焊枪上的两极(即用于与焊丝连接的熔化极,以及焊枪上用于与焊接材料连接的焊件连接极)的正极接通时间与负极接通时间的时间比,在焊接时使焊丝上产生的热量较大,而焊接材料(即母材)上产生的热量较少,以防止焊接材料变形或穿孔,有效提高焊接质量;而在焊接厚板材料时,通过控制焊枪上的两极的正极接通时间与负极接通时间的时间比,在焊接时使焊接材料上产生的热量较大的同时也使焊丝上产生的热量较大,提高焊丝的熔解速度,从而有效提高焊接速度。 For example, when welding the thin plate material, by controlling the time ratio between the positive on-time and the negative on-time of the two output ends of the molten-pole welding power supply module, that is, controlling the two poles on the welding torch (ie, the melting pole for connecting with the welding wire) And the ratio of the positive on-time and the negative on-time of the solder joint on the welding gun to the solder material, the heat generated on the wire is large during soldering, and the solder material (ie, the base material) Less heat is generated to prevent deformation or perforation of the welding material, which effectively improves the welding quality; and when welding the thick plate material, by controlling the time ratio of the positive electrode on-time of the two poles on the welding torch to the time of the negative electrode on-time, in the welding When the heat generated on the welding material is large, the heat generated on the welding wire is also large, and the melting speed of the welding wire is increased, thereby effectively increasing the welding speed.
上述实施例中提到的内容为本发明较佳的实施方式,并非是对本发明的限定,在不脱离本发明构思的前提下,任何显而易见的替换均在本发明的保护范围之内。 The above mentioned embodiments are a preferred embodiment of the present invention, and are not intended to limit the present invention, and any obvious alternatives are within the scope of the present invention without departing from the inventive concept.

Claims (8)

  1. 一种交直流熔化极焊机,所述焊机包括熔化极焊接电源模块与焊枪,其特征在于: 所述熔化极焊接电源模块与焊枪之间连接有交直流变换控制模块,所述交直流变换控制模块用于控制所述熔化极焊接电源模块的两输出端正负极性的变换,并控制所述熔化极焊接电源模块的两输出端的正极接通时间与负极接通时间的时间比,且所述焊枪的输入端与所述熔化极焊接电源模块建立反馈连接,以将焊枪的输出电流参数以及输出电压参数反馈至所述熔化极焊接电源模块。 An AC-DC welding pole welding machine, comprising: a molten-pole welding power module and a welding gun, characterized in that: An AC/DC conversion control module is connected between the molten-pole welding power supply module and the welding gun, and the AC/DC conversion control module is configured to control the transformation of the positive and negative polarities of the two output ends of the molten-pole welding power supply module, and control the melting a time ratio of a positive turn-on time and a negative turn-on time of the two output ends of the pole welding power supply module, and an input connection of the welding torch and the molten-pole welding power supply module establish a feedback connection to output an output current parameter and an output voltage of the welding torch The parameters are fed back to the molten pole welding power module.
  2. 根据权利要求1所述的交直流熔化极焊机,其特征在于:所述交直流变换控制模块具有输入正端、输入负端、第一输出端以及第二输出端, 所述交直流变换控制模块包括第一开关模块、第二开关模块、第三开关模块以及第四开关模块;所述输入正端、第一开关模块的输入端、第一开关模块的输出端、第二开关模块的输入端、第二开关模块的输出端以及所述输入负端依次连接,所述输入正端、第三开关模块的输入端、第三开关模 块的输出端、第四开关模块的输入端、第四开关模块的输出端以及所述输入负端依次连接;所述第三开关模块与第四开关模块的相互连接的一端作为所述第一输出端,所述第三开关模块与第四开关模块的相互连接的一端作为所述第二输出端。 The AC/DC fusion welding machine according to claim 1, wherein the AC/DC conversion control module has an input positive terminal, an input negative terminal, a first output terminal, and a second output terminal. The AC/DC conversion control module includes a first switch module, a second switch module, a third switch module, and a fourth switch module; the input positive end, the input end of the first switch module, and the output end of the first switch module, An input end of the second switch module, an output end of the second switch module, and the input negative end are sequentially connected, the input positive end, the input end of the third switch module, and the third switch mode An output end of the block, an input end of the fourth switch module, an output end of the fourth switch module, and the input negative end are sequentially connected; an interconnected end of the third switch module and the fourth switch module is used as the first At the output end, an interconnected end of the third switch module and the fourth switch module serves as the second output end.
  3. 根据权利要求2所述的交直流熔化极焊机,其特征在于:所述第二输出端与所述第三开关模块与第四开关模块的相互连接的一端之间串联连接有LC串联电路。 The AC-DC welding machine according to claim 2, wherein an LC series circuit is connected in series between the second output end and the mutually connected end of the third switch module and the fourth switch module.
  4. 根据权利要求2所述的交直流熔化极焊机,其特征在于:所述第一开关模块、第二开关模块、第三开关模块以及第四开关模块为相同的开关电路,所述开关电路包括一开关功率器件,一电容以及一二极管,所述电容并联连接于所述开关功率器件的漏极与源极之间,或者所述电容并联连接于所述开关功率器件的集电极与发射极之间;所述二极管的正极与所述开关功率器件的漏极或集电极连接,所述二极管的负极与所述开关功率器件的源极或发射极连接;所述开关功率器件的漏极或集电极作为各开关模块的输入端,所述开关功率器件的源极或发射极作为各开关模块的输出端,所述开关功率器件的栅极或基极连接有一用于控制开关功率器件导通或截止的开关信号源。 The AC-DC welding machine according to claim 2, wherein the first switch module, the second switch module, the third switch module, and the fourth switch module are the same switch circuit, and the switch circuit includes a switching power device, a capacitor and a diode, the capacitor being connected in parallel between the drain and the source of the switching power device, or the capacitor being connected in parallel to the collector and the emitter of the switching power device The anode of the diode is connected to the drain or collector of the switching power device, the cathode of the diode is connected to the source or emitter of the switching power device; the drain or set of the switching power device An electrode is used as an input end of each switch module, and a source or an emitter of the switching power device is used as an output end of each switch module, and a gate or a base of the switching power device is connected to control a switching power device to be turned on or The switching signal source that is turned off.
  5. 根据权利要求4所述的交直流熔化极焊机,其特征在于:所述开关功率器件为MOS管或三极管。  The AC-DC welding machine according to claim 4, wherein the switching power device is a MOS transistor or a triode.
  6. 根据权利要求1~5中任一项所述的交直流熔化极焊机,其特征在于: 所述熔化极焊接电源模块包括依次连接的电源输入模块、直流恒压模块、斩波控制模块、以及恒流反馈模块,还包括有控制系统模块、电流取样模块以及电压取样模块;所述电流取样模块的输入端至少具有两电流输入接口,其中一电流输入接口与直流恒压模块的输出端连接,另一电流输入接口与焊枪的输入端连接;所述电压取样模块的输入端至少具有两电压输入接口,其中一电压输入接口与直流恒压模块的输出端连接,另一电压输入接口与焊枪的输入端连接;所述电流取样模块的输出端、电压取样模块的输出端均与控制系统模块连接。 The AC-DC welding machine according to any one of claims 1 to 5, characterized in that: The molten pole welding power supply module includes a power input module, a DC constant voltage module, a chopper control module, and a constant current feedback module, which are sequentially connected, and further includes a control system module, a current sampling module, and a voltage sampling module; the current sampling The input end of the module has at least two current input interfaces, wherein one current input interface is connected to the output end of the DC constant voltage module, and the other current input interface is connected to the input end of the welding gun; the input end of the voltage sampling module has at least two voltages An input interface, wherein a voltage input interface is connected to an output end of the DC constant voltage module, and another voltage input interface is connected to an input end of the welding gun; an output end of the current sampling module and an output end of the voltage sampling module are connected to the control system module connection.
  7. 根据权利要求6所述的交直流熔化极焊机,其特征在于:所述熔化极焊接电源模块还包括与控制系统模块连接的人机界面操作及显示模块。 The AC-DC welding machine according to claim 6, wherein the molten-pole welding power supply module further comprises a human-machine interface operation and display module connected to the control system module.
  8. 根据权利要求6所述的交直流熔化极焊机,其特征在于:所述控制系统模块设置有用于与外部设备进行通信连接的同步通信接口。  The AC-DC welding machine according to claim 6, wherein said control system module is provided with a synchronous communication interface for communicating with an external device.
PCT/CN2015/095870 2015-10-14 2015-11-28 Alternating-current and direct-current consumable electrode welder WO2017063252A1 (en)

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CN201510660174.5A CN105149748B (en) 2015-10-14 2015-10-14 A kind of alternating current-direct current consumable electrode welding machine
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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4508954A (en) * 1984-05-18 1985-04-02 Oxo Welding Equipment Co., Inc. Portable arc voltage wirefeed welding system
JPH01143768A (en) * 1987-11-30 1989-06-06 Matsushita Electric Ind Co Ltd Arc welding machine for ac-dc
US5410126A (en) * 1994-05-02 1995-04-25 Miller; Norman O. Portable AC/DC wire feed welder
CN2226507Y (en) * 1995-03-07 1996-05-08 张亚军 Electric current telecontrol regulator for AC and DC welder welding
CN2496588Y (en) * 2001-03-12 2002-06-26 梁宝典 Improved multifunctional oxyhydrogen welding and cutting machine
CN104014904A (en) * 2014-04-15 2014-09-03 刘文斌 Welding equipment capable of adjusting welding current automatically and welding current control method
CN204018921U (en) * 2014-04-15 2014-12-17 刘文斌 A kind of welding and cutting device
CN105127549A (en) * 2015-09-08 2015-12-09 刘文斌 Welding machine with alternating current welding mode and direct current welding mode coexisting in one welding period and welding method thereof
CN105149732A (en) * 2015-10-14 2015-12-16 刘昇澔 Consumable electrode welder and welding method thereof
CN105149751A (en) * 2015-10-14 2015-12-16 刘昇澔 Welding system with melting electrode and non-melting electrode at same time and welding method of welding system
CN204913016U (en) * 2015-09-08 2015-12-30 刘文斌 Welding machine of alternating current -direct current welding mode coexistence in same welding cycle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4846898B2 (en) * 2000-09-12 2011-12-28 株式会社ダイヘン AC pulse arc welding control method and welding power source apparatus
CN100459399C (en) * 2003-11-26 2009-02-04 株式会社三社电机制作所 Power supply unit
JP2010075944A (en) * 2008-09-25 2010-04-08 Daihen Corp Ac arc welding machine
CN101465598B (en) * 2009-01-08 2012-04-25 普天信息技术研究院有限公司 AC/DC converter
CN201824044U (en) * 2010-09-29 2011-05-11 山西平阳重工机械有限责任公司 Control circuit structure of inverter welding machine
CN102398101A (en) * 2011-11-21 2012-04-04 无锡市南方电器制造有限公司 Welding control method of a digitalized direct current pulse MIG welding machine and welding control circuit thereof
CN104625333B (en) * 2014-12-12 2016-06-01 杭州凯尔达电焊机有限公司 A kind of novel DC/AC arc welding equipment

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4508954A (en) * 1984-05-18 1985-04-02 Oxo Welding Equipment Co., Inc. Portable arc voltage wirefeed welding system
JPH01143768A (en) * 1987-11-30 1989-06-06 Matsushita Electric Ind Co Ltd Arc welding machine for ac-dc
US5410126A (en) * 1994-05-02 1995-04-25 Miller; Norman O. Portable AC/DC wire feed welder
CN2226507Y (en) * 1995-03-07 1996-05-08 张亚军 Electric current telecontrol regulator for AC and DC welder welding
CN2496588Y (en) * 2001-03-12 2002-06-26 梁宝典 Improved multifunctional oxyhydrogen welding and cutting machine
CN104014904A (en) * 2014-04-15 2014-09-03 刘文斌 Welding equipment capable of adjusting welding current automatically and welding current control method
CN204018921U (en) * 2014-04-15 2014-12-17 刘文斌 A kind of welding and cutting device
CN105127549A (en) * 2015-09-08 2015-12-09 刘文斌 Welding machine with alternating current welding mode and direct current welding mode coexisting in one welding period and welding method thereof
CN204913016U (en) * 2015-09-08 2015-12-30 刘文斌 Welding machine of alternating current -direct current welding mode coexistence in same welding cycle
CN105149732A (en) * 2015-10-14 2015-12-16 刘昇澔 Consumable electrode welder and welding method thereof
CN105149751A (en) * 2015-10-14 2015-12-16 刘昇澔 Welding system with melting electrode and non-melting electrode at same time and welding method of welding system

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