Method for adjusting laser light path of laser welding machine

Abstract

The invention discloses a method for adjusting a laser light path of a laser welding machine. The method comprises the following steps of 1) detaching a 1 # reflector and a 2 # reflector of the laserwelding machine; 2) roughly adjusting a laser upper light path; 3) finely adjusting a laser upper light path; 4) adjusting a vertical light path; 5) adjusting the 2 # reflector; and 6) adjusting the focus position of a 3 # focusing mirror. According to the method for adjusting the laser light path of the laser welding machine, the laser light path is accurately adjusted, the adjusting precision isadjusted to be 0.01 mm by using a dial indicator, it is guaranteed that the finally-converged point of laser is the center point of the welding position of the head and the tail of strip steel, therefore the welding quality is guaranteed, according to the adjustment sequence, the position of an outer light path basic frame is adjusted firstly, then the upper reflector, the lower reflector and thefocus lens are adjusted in sequence after adjustment is completed, the principle that the smaller a light spot is, the larger laser energy is is is utilized for focus lens adjustment, the most reasonable focal length position offset of the focus lens is found out, the method is simple and reasonable in step, high in adjustment efficiency, accuracy and precision.

Description

technical field [0001] The invention relates to the technical field of steelmaking, in particular to a method for adjusting the laser light path of a laser welding machine. Background technique [0002] In the modern iron and steel industry, in order to improve production efficiency, most of the combined pickling and rolling units are continuous pickling and rolling, and the necessary condition for continuous rolling is that the strip must enter the acid tank and rolling mill stand without interruption . The most critical piece of equipment, the laser welding machine, welds the head and tail of each coil to form a strip that runs through the entire production line to achieve continuous production. The combined cold-rolling and acid-rolling unit is designed by SMS, with a designed annual output of 2 million tons. The products are mainly positioned as high-end home appliance panels and automotive panels. The laser welding machine is a new generation of HSL19 laser welding mac...

AI Technical Summary

Problems solved by technology

Therefore, there is an urgent need to design a method for adjusting the laser light path of the laser welding machine to solve the problems of low production stability and affecting the normal continuous production and operation of the unit due to deviations in the maintenance process of the laser welding machine

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