Self-rotating type electric stud welding gun suitable for hollow studs

Abstract

The invention belongs to welding equipment, and particularly relates to a self-rotating type electric stud welding gun suitable for hollow studs. The self-rotating type electric stud welding gun suitable for hollow studs comprises a cylinder barrel, a plurality of connecting pieces, a buffer pad, a piston rod, a guide block, a shaft sleeve, a gasket, two casings, a retaining piece, a retaining ring, a positioning block, a ball bearing, four synchronous wheels, two servo motors, a fastening nut, a lead screw nut, an angular contact bearing and a circumferential positioning block. The first servo motor controls lifting and pressing movement during hollow stud welding, and the second servo motor controls rotating movement during hollow stud welding. The self-rotating type electric stud welding gun suitable for hollow studs solves the problems that an existing stud welding gun cannot accurately and quantitatively control the lifting speed, the pressing speed and the pressing depth during welding, and meanwhile solves the arc deflection problem during hollow stud welding.

Description

technical field [0001] The invention belongs to welding equipment, in particular to a self-rotating electric stud welding gun adapted to hollow studs. Background technique [0002] Stud welding is an arc welding method. The traditional stud welding process can be roughly divided into the following steps: 1) The stud applies a preload to the workpiece under the action of the preload spring of the welding torch; 2) The welding torch is powered on, and the electromagnetic coil in the welding torch generates a magnetic field to fix the iron core Generate magnetic force to lift the stud connected with the moving iron core, and at the same time the welding power is turned on to strike the arc between the stud and the workpiece; 3) The arc is kept for a certain period of time to melt the end face of the stud and the surface of the workpiece below; 4) The welding torch breaks Electricity, the fixed iron core loses its magnetic force, and the stud is quickly pressed into the molten ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a self-rotating electric stud welding gun adapted to hollow studs, which solves the problem that the existing stud welding guns cannot accurately and quantitatively control the lifting speed, pressing down speed, and pressing down depth, and at the same time solves the problem of hollow stud welding Arc deflection problem during column welding

Images