Front passenger car wall assembly welding clamp and technique using the same to weld front wall assembly

Abstract

The invention relates to a front passenger car wall assembly welding clamp and a technique using the same to weld a front wall assembly. The front 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 front wall assembly includes steps that firstly, using the clamp to clamp, fix and weld spare parts of a front wall framework into a single body, using the jacking device to jack up, and using a cantilever crane to hoist out the front wall framework; secondly, using the clamp to clamp, fix and weld spare parts of a front wall skin into a single body, and using the jacking device to jack up; finally, hoisting the front wall framework into the front wall skin, resetting the jacking device, compressing the front wall framework and front wall skin, and welding to form the front wall assembly. The technique enables the precision quality and appearance effect of the front wall assembly to be guaranteed.

Description

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

AI Technical Summary

Problems solved by technology

However, due to errors in the manufacture of the square tube of the cowl frame itself and welding deformation and dimensional errors after the welding of the various tube parts to form the cowl frame, the parts of the cowl skin are carried out according to the trend of the cowl frame sub-assembly. After welding, the front wall skin formed after welding is greatly deformed, which seriously affects the appearance effect

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