Positioning device of high-precision laser butt welding machine

Abstract

The invention relates to the field of laser welding auxiliary equipment, in particular to a positioning device of a high-precision laser butt welding machine. The positioning device comprises a base,a power mechanism, two butt joint mechanisms and two positioning mechanisms which are symmetrically arranged on the top of the base and have the same structures. The two butt joint mechanisms are symmetrically arranged between the two positioning mechanisms. Each positioning mechanism comprises a guide seat, a positioning clamp, an intercepting part and a pressing part. The positioning clamps canbe movably arranged above the guide seats through tension springs, the two intercepting parts are arranged at the close ends of the two positioning clamps, the intercepting parts can rotate through rotary motors, the two pressing parts are arranged above the close ends of the two positioning clamps, the two butt joint mechanisms are connected with one ends of the two positioning clamps, and the power mechanism is in transmission connection with the two butt joint mechanisms. Two pre-welded base materials can be accurately in butt joint automatically, the problems that gaps are too large and the surfaces are not smooth after butt joint are completely eradicated, and therefore the following welding quality is improved.

Description

technical field [0001] The invention relates to the field of laser welding auxiliary equipment, in particular to a positioning device for a high-precision laser butt welding machine. Background technique [0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. In the 1970s, it was mainly used for welding thin-walled materials and low-speed welding. The welding process is heat conduction, that is, the laser radiation heats the surface of the workpiece, and the surface heat diffuses to the inside through heat conduction. By controlling the width, energy, peak power and repetition frequency of the laser pulse and other parameters to melt the workpiece and form a specific molten pool. Due to its unique advantages, it has been successfully applied in the precision welding of micro and small parts. Laser ...

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Problems solved by technology

[0004] The disadvantage of the above solution is that in the process of splicing the two pre-welded base materials, it does not explain how to ensure the stability of the two butt joints. At the same time, whether the movable distance can be accurately controlled during the butt joint process, when When the moving distance exceeds the docking distance, collision bending or overlapping problems may occur, and the above-mentioned solution is not automatic enough

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