Arc welding wire feeding heat conduction mechanism

Abstract

The invention provides an arc welding wire feeding heat conduction mechanism which comprises a heat conduction nozzle, a first wire feeding mechanism and a control mechanism. A welding wire is conveyed into the heat conduction nozzle through the first wire feeding mechanism, and the heat conduction nozzle and the first wire feeding mechanism are located on the same straight line so that the welding wire between the heat conduction nozzle and the first wire feeding mechanism can be kept in a straight line state. The control mechanism is connected with the first wire feeding mechanism so as to control the first wire feeding mechanism to do reciprocating motion in the moving direction of the welding wire, when the first wire feeding mechanism gets close to the heat conduction nozzle, the first wire feeding mechanism clamps the welding wire and drives the welding wire to move in the direction of the heat conduction nozzle, and when the first wire feeding mechanism gets far away from the heat conduction nozzle, the first wire feeding mechanism loosens the welding wire. According to the arc welding wire feeding heat conduction mechanism, in the welding wire conveying process, the welding wire can be prevented from being in a sawtooth shape, and the problem of welding wire deviation caused by heat conduction nozzle wear is solved.

Description

technical field [0001] The invention relates to an arc welding wire feeding mechanism, in particular to an arc welding wire feeding conductive mechanism. Background technique [0002] Submerged arc automatic welding is an arc welding method with high productivity, which is widely used in welding production. At present, the existing automatic welding wire transmission mechanism for arc welding mainly includes a wire feeder, a wire feed wheel and a contact tip. The welding wire provided by the wire feeder is compressed by the wire feed wheel and then sent to the contact tip at a set speed; The welding wire is transmitted by the rolling of the wire feed rollers. During the transmission process, two wire feed rollers need to press the welding wire at the same time to transmit the welding wire. In this way of transmission, after the wire feed roller presses the welding wire, the welding wire sent out will have a jagged shape, and the jagged welding wire will have a large frictio...

AI Technical Summary

Problems solved by technology

In this transmission mode, after the wire feed roller presses the welding wire, the welding wire sent out will have a jagged shape, and the jagged welding wire will have a large friction force when passing through the contact tip, which is easy to wear the contact tip, resulting in a short service life of the contact tip.

Images