Rear passenger car wall assembly welding clamp and technique using the same to weld rear wall assembly

Abstract

The invention relates to a rear passenger car wall assembly welding clamp and a technique using the same to weld a rear wall assembly. The rear passenger car wall assembly welding clamp comprises a pedestal, a short support, a long support, a cylinder and a clamp wall, a plurality of first supports are fixed at the front and rear sides of the pedestal, a plurality of second supports are fixed at the left and right sides of the pedestal, and a jacking device is fixed at the middle position. The technique using the clamp to weld the rear wall assembly includes steps that firstly, using the clamp to clamp, fix and weld spare parts of a rear wall framework into a single body, using the jacking device to jack up, and using a cantilever crane to hoist out the rear wall framework; secondly, using the clamp to clamp, fix and weld spare parts of a rear wall skin into a single body, and using the jacking device to jack up; finally, hoisting the rear wall framework into the rear wall skin, resetting the jacking device, compressing the rear wall framework and rear wall skin, and welding to form the rear wall assembly. The technique enables the precision quality and appearance effect of the rear wall assembly to be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of passenger car rear wall assembly manufacturing, and in particular relates to a passenger car rear wall assembly welding jig and a process for using the same to carry out rear wall assembly welding. Background technique [0002] The bus rear wall assembly includes the rear wall frame sub-assembly and the rear wall skin sub-assembly, the assembly and welding of the bus rear wall assembly, that is, the assembly and welding of the rear wall frame and the rear wall skin. The traditional process of assembling and welding is as follows: Firstly, the components of the rear wall frame sub-assembly are welded into a whole rear wall frame sub-assembly, and the rear wall frame sub-assembly is used as the basic shape, and each part of the rear wall skin is The components are welded and riveted on the outer surface of the rear wall frame sub-assembly. At this time, the rear wall skin and the rear wall frame form a comp...

AI Technical Summary

Problems solved by technology

However, due to errors in the manufacture of the square tube of the rear wall frame itself and welding deformation and dimensional errors after the welding of the various pipe parts to form the rear wall frame, the components of the rear wall skin are assembled in the trend state of the rear wall frame Welding, the rear wall skin formed after welding is greatly deformed, which seriously affects the appearance effect

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