Intelligent gas shielded welding converter

Abstract

The invention relates to an intelligent gas shielded welding converter which comprises an input end, an output end, a rectifier circuit, a first filtering circuit, a secondary filtering circuit and an LM three-terminal voltage-stabilizing and current-stabilizing circuit, wherein anode and cathode of the input end are respectively connected with the anode and cathode of an inverter welding machine; the input end is connected with the rectifier circuit; the rectifier circuit is connected with the first filtering circuit; the first filtering circuit is connected with the secondary filtering circuit; the secondary filtering circuit is connected with a voltage-stabilizing circuit; a first-level voltage-stabilizing circuit is formed by the voltage-stabilizing circuit and the secondary filtering circuit; the output end of the converter is arranged on the output side of the first-level voltage-stabilizing circuit; the anode and the cathode of the output end of the converter are connected with a welding gun and a to-be-welded workpiece; and the output side of the first-level voltage-stabilizing circuit is connected with an aspirated controlled solenoid valve. The intelligent gas shielded welding converter can meet the requirements of manual welding and gas shielded welding at the same time and is excellent in applicability.

Description

technical field [0001] The invention relates to a welding machine, in particular to a converter suitable for both manual arc welding and gas shielded welding. Background technique [0002] Ordinary inverter welding machines can only be used as manual arc welding, and the existing ordinary inverter welding machines use pulsating DC power supply; [0003] MIG gas shielded welding is a metal gas shielded welding machine with controllable, uniform and reliable droplet, less spatter and beautiful weld seam. There are mainly two parts: welding power supply and control system. The welding power supply is the main part of the arc welding machine, and it is a device that provides electric energy to the welding arc. The control system includes a stable wire feeding system and an adjustable process parameter system, which can control the heat input and weld shape, and can realize the precise control of droplet transfer and arc length change. [0004] In view of the different power s...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of existing welding machines that cannot meet the two different occasions of manual welding and gas shielded welding at the same time, and have poor applicability, the present invention provides an intelligent gas shielded welding conversion that can meet the needs of manual welding and gas shielded welding at the same time and has good applicability. device

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