Argon arc welding machine

Abstract

The invention belongs to the technical field of welding equipment and particularly relates to an argon arc welding machine. The argon arc welding machine comprises a rotating shaft, a machine box, a counter weight, a wire conveying disc, a wire pressing body and a wire conveying motor; the end face of one end of the rotating shaft is provided with a positioning head; the other end of the rotatingshaft is rotationally inserted into the machine box; the counter weight is arranged on the rotating shaft in a sleeving manner; the wire conveying disc is rotationally installed on the counter weight;the wire conveying disc is used for winding a welding wire; the wire pressing body comprises two wire guide wheels which are both arranged on the counter weight; the right end of the welding wire iswound on the wire conveying disc, and the other end of the welding wire passes through a clearance between the two wire guide wheels; the wire conveying motor is used for driving the two wire guide wheels to rotate; and a derusting module is positioned on the counter weight and is used for cleaning and derusting the surface of the welding wire. The argon arc welding machine provided by the invention is simple in structure and convenient to operate and is used for cleaning a rusted welding wire by cooperation of a friction wheel and a derusting spring which are arranged in the derusting module,thereby preventing occurrence of welding quality reduction caused by rusting of the welding wire.

Description

technical field [0001] The invention belongs to the technical field of welding equipment, in particular to an argon arc welding machine. Background technique [0002] In the production and maintenance of heat exchangers, tube-sheet argon arc welding machines are often used to weld heat exchanger tubes and tube sheets. The tube-sheet argon arc welding machine usually includes a rotating shaft, a chassis and a wire feeder. One end of the rotating shaft is provided with a positioning head, which can be inserted into the heat exchanger tube, and the other end of the rotating shaft is inserted into the casing of the tube-sheet argon arc welding machine. In the case, the wire feeding disc is set at the rear end of the chassis. A welding torch is fixed on the rotating shaft. During the welding process, the rotating shaft rotates around the axis of the rotating shaft to drive the welding torch to rotate, thereby completing the welding of the joint between the heat exchanger tube an...

AI Technical Summary

Problems solved by technology

However, this technical solution does not take into account that the welding wire used in humid environments such as underground mines and underground passages is prone to oxidation and corrosion, which affects the overall welding quality, making this technical solution limited

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