Automatic point welding machine capable of reducing pressure

Abstract

The invention discloses an automatic point welding machine capable of reducing pressure. The automatic point welding machine includes a bottom plate. The two sides of the upper surface of the bottom plate are both provided with sliding grooves. Sliding rods are inserted in the sliding grooves Each sliding rod is connected with a regulating block in a sleeved mode. The top portions of the two regulating blocks are both fixedly connected with vertical plates. The opposite sides of the two vertical plates are both fixedly connected with sliding rails. Each sliding rail is internally and slidablyconnected with a sliding block. The bottom of each sliding block is movably connected with the inner wall of the corresponding sliding rail through a first spring. The opposite sides of the two sliding blocks are connected with each other through a lifting plate. A through groove is formed in the lifting plate. According to the automatic point welding machine, through improvement of the lifting plate, when a linear motor moves on the lifting plate, the point welding machine can be driven to move left and right; a telescopic cylinder can drive the lifting plate to move up and down in the sliding rails on the two sides, so that the point welding machine does not need to be hand-held to machine a small workpiece; and cooperating with using of a telescopic rod and a second spring, the fact that the small workpiece is damaged because downward pressing force of the point welding machine is too high can be avoided.

Description

technical field [0001] The invention relates to the technical field of spot welding machines, in particular to an automatic spot welding machine capable of reducing pressure. Background technique [0002] The spot welding machine adopts the principle of double-sided double-point overcurrent welding. When working, two electrodes pressurize the workpiece so that the two layers of metal form a certain contact resistance under the pressure of the two electrodes, and the welding current flows from one electrode to the other. Instantaneous thermal fusion is formed at the two contact resistance points, and the welding current flows from the other electrode along the two workpieces to this electrode to form a loop, and will not damage the internal structure of the workpiece to be welded. According to the purpose of spot welding, there are universal type (universal type) and special type; according to the number of welding points welded at the same time, there are single-point type, ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an automatic spot welding machine that can reduce the pressure, which solves the problem of inaccurate spot welding position of the spot welding machine and easy damage to small workpieces

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