Welding technology for rear automobile frame assembly shaped like Chinese character 'jing'

Abstract

A welding technology for a rear automobile frame assembly shaped like a Chinese character 'jing' is characterized in that all installed and welded parts to be installed and welded are firstly clamped on a special welding clamp for locating and clamping, gas shielded welding is adopted for carrying out manual spot welding on all spot welding positions, the rear automobile frame assembly obtained after spot welding is finished is arranged on a full welding clamp of a robot to be located, then a pneumatic clamp is used for clamping, and the robot is started for sequence welding; and full welding is carried out on a bracket assembly and a supporting plate, full welding is carried out on a stabilization rod support assembly and an auxiliary arm support assembly, the bracket assembly is mounted in a full welding manner, gas shielded welding is manually utilized for carrying out welding supplementary on missing welded positions of the robot, re-tapping is carried out on nuts, and welding slag around a welding seam is cleared away. The weld penetration rate completely reaches the standard, the frame size consistency is good after welding, the quality of the welding seam is good, missing welding is avoided, operation by workers is convenient, labor intensity is low, production efficiency is high, cost is low, and wide application value is achieved in production of products of the same kind.

Description

technical field [0001] The invention relates to a metal welding method, in particular to a welding process for a rear frame assembly of a well-shaped automobile. Background technique [0002] At present, most of the rear frame assemblies of well-shaped automobiles use special welding fixtures, assembly welding, and welding accessories. Gas shielded welding is used for manual full welding of the welding parts. There are poor weld quality, inconsistent welding penetration rate, and poor welding size consistency. It is easy to produce problems such as missing soldering, and the labor intensity is high, the production efficiency is low, and the cost is high. Contents of the invention [0003] The object of the present invention is to provide a welding process for the rear frame assembly of a well-tac-toe automobile, which fully meets the standard of weld penetration rate, good dimensional consistency, is not easy to leak welding, low labor intensity, high production efficiency...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the rear frame assemblies of well-shaped automobiles use special welding fixtures, assembly welding, and welding accessories. Gas shielded welding is used for manual full welding of the welding parts. There are poor weld quality, inconsistent welding penetration rate, and poor welding size consistency. It is easy to cause problems such as missing soldering, and the labor intensity is high, the production efficiency is low, and the cost is high