Wire feeding mechanism used in electric welding machine

Abstract

The invention relates to the technical field of welding machine part equipment, and discloses a wire feeding mechanism used in an electric welding machine. The wire feeding mechanism used in the electric welding machine comprises a fixing support, wherein a driven shaft is movably sleeved with one side of an inner cavity of the fixing support, the portion, at the top of the outer surface of the driven shaft, located in the inner cavity of the fixing support is fixedly sleeved with a first wire feeding wheel, a driving shaft is movably sleeved with the other side of the inner cavity of the fixing support, and the portion, at the middle portion of the outer surface of the driving shaft, located in the inner cavity of the fixing support is fixedly sleeved with a disc spring. According to the wire feeding mechanism used in the electric welding machine, due to arrangement of the positions of clamping cutter sets on the first wire feeding wheel and a second wire feeding wheel, the phenomena that due to the fact that the clamping cutter set on the first wire feeding wheel and the clamping cutter set on the second wire feeding wheel coincide with each other, the clamping cutter sets excessively extrude welding wires, and consequently the welding wires are broken or the welding wires are broken off in a welding gun to block the welding gun are effectively avoided, so that the stability and the reliability of the wire feeding mechanism in an operation process are further improved.

Description

technical field [0001] The invention relates to the technical field of welding machine components and equipment, in particular to a wire feeding mechanism used in an electric welding machine. Background technique [0002] As a kind of equipment for automatic wire feeding for welding guns, the wire feeder is a very important link in the welding process, which can greatly improve its work efficiency during welding. At present, the existing wire feeders mainly rely on The frictional force between the wire feed groove on the drawing wheel and the moving wheel provides the power to convey the welding wire. However, the inner diameter of the wire feeding groove on the drawing wheel is fixed. When using different specifications and types of welding wire, It needs to be replaced to apply the corresponding welding wire, which leads to the complicated operation process and low work efficiency during use. Moreover, because the existing wire feeder adopts the friction extrusion method, ...

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Problems solved by technology

[0005] The invention provides a wire feeding mechanism used in an electric welding machine, which can be automatically adjusted according to the specification and model of the welding wire, is simple to operate and easy to use, can accurately control the delivery amount of the welding wire, and will not be damaged during long-term use. Due to wear and tear, it slips when conveying the welding wire, which effectively improves the welding quality, stability and reliability of the welding machine for the workpiece, and solves the problem that the existing wire feeder mainly relies on the wire drawing wheel. The friction between the wire feeding slot on the wire drawing wheel and the moving wheel provides power for the welding wire to be transported. However, the inner diameter of the wire feeding slot on the wire drawing wheel is fixed. When using welding wires of different specifications, it is necessary to adjust Replacement to apply the corresponding welding wire, which leads to more cumbersome operation process and lower work efficiency during use, and, because the existing wire feeder adopts the friction extrusion conveying method, it is not suitable for welding wire The conveying accuracy of the welding wire is poor, and in the process of long-term use, it will cause different degrees of wear to the wire feeding trough or the moving wheel, which makes it very prone to slipping during the process of squeezing and conveying the welding wire, which greatly affects the Its problem with the welding quality of the workpiece

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