220 V and 380 V double-power-source IGBT inversion multifunctional welding machine

Abstract

The invention provides a 220 V and 380 V double-power-source IGBT inversion multifunctional welding machine. Manual arc welding and MIG/MAG gas shielded welding can be performed. The welding machine can conduct simple argon arc welding through the manual welding function. The power source of the welding machine is 220 V or 380 V, single IGBT half-bridge inversion control is adopted, and the output rated current can reach the level of 200 A at 60% in the MIG/MAG gas shielded welding process and the level of 180 A at 60% in the MMA manual arc welding or TIG argon arc welding process. Six nixie tubes and display control circuits of the nixie tubes are arranged on a display and operation control panel. The nixie tubes and the display control circuits are divided into two groups which are used for displaying the current parameter and the voltage parameter respectively. A manual welding/gas shielded welding method conversion button, gas shielded welding 2T/4T welding gun on-off operation mode selection buttons, unit indicator lamps for the voltage, the current and the wire feeding speed, an overheating indicator lamp and a potentiometer for setting and adjusting parameters of the current, the wire feeding speed and the voltage and the inductance parameter of an electronic electric reactor are further arranged. By the adoption of the welding machine, multiple welding methods and functions are provided, the problems that the single power source voltage is input and the application range of a singular-function welding machine is narrow are solved, and the circuit principle, circuit boards and the whole structure of the welding machine are designed to be unique.

Description

technical field [0001] The invention relates to a 220V or 380V dual-power IGBT inverter multifunctional welding machine, the welding machine adopts single-tube IGBT half-bridge inverter control, in addition to MIG / MAG gas shielded welding, manual arc welding can also be performed, and at the same time, manual The welding function can also be used for simple argon arc welding, which belongs to the technical field of inverter welding machines. technical background [0002] At present, the competition in the inverter MIG / MAG gas shielded welding machine product market is very fierce, which is not only reflected in the advancement and advantages of technology, but also largely depends on the welding machine's circuit and its functions and structural design. . [0003] In domestic and foreign markets, the rated current of 220V or three-phase 380V IGBT inverter MIG / MAG gas shielded welding machines is usually at the level of 160~630A (60% duty cycle). This kind of three-phase 38...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of 220V and 380V double power source IGBT inverter multifunctional welding machine, can carry out manual electric arc welding and MIG/MAG gas shielded welding, utilize manual welding function, welding machine can also carry out simple argon arc welding, welding The power supply of the machine is 220V or 380V, using single-tube IGBT half-bridge inverter control, and the output rated current can reach (during MIG/MAG gas shielded welding) 200A (60%)/(during MMA manual arc welding or TIG argon arc welding) 180A (60%) level, for the display and operation control panel of the present invention, 6 digital tubes and their display control circuits are designed on the board, which are di...

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