Technique for total assembly of side round of vehicle body weld line body

Abstract

The invention discloses a side wall assembly butt process of a bodywork welding line, which comprises the following processing steps: (I) floor assembly welding is carried out on 10# station; (II) side wall inner plate assembly on the left and right rear sections and floor assembly butt welding are carried out on 22# station; (III) side wall assembly on the left and right front sections, side wall outer plate assembly on the left and right rear sections and top cover assembly butt welding are carried out on 30# station; (IV) point welding and repair welding are carried out on 40# station; (V)CO2 repair welding and MIG repair welding are carried out on 50# station. Assembly butt welding is carried out on 20# station and 30# station respectively by using welding wires twice on the side wall inner plate assembly and outer plate assembly on the left and right rear sections, and about two sets of assembly clamps of the side wall on the left and right rear sections can be reduced to ensurepoint welding can be carried out on the 95% seam of the side wall assembly on the left and right rear sections connected with the floor, and the welding strength of the bodywork is improved; the assembly location of the inner and out decorations can be adjusted by the welding location of 20# station and 30# station, thus solving the problems that the traditional inner and outer decoration assembly positions has mutual effect and coordination difficulty.

Description

technical field [0001] The invention relates to a welding process of an automobile body, in particular to a process for overall alignment of side walls of a multi-station body welding line body. Background technique [0002] The body of the multifunctional commercial vehicle (model EO5) newly developed by our company is refitted on the basis of the pickup truck body, and some parts common to the pickup truck are produced using the original resources. The common part and the special part are assembled on the welding wire body. The conventional welding process is: floor assembly welding at 10# station → left and right side panel assembly pre-assembly at 20# station → total butt welding at 30# station → spot welding repair welding at 40# station →Carry out CO at 50# station 2 Repair welding and MIG repair welding, that is, the side wall inner and outer panel assemblies of the left and right rear sections and the front section side wall assembly are tailor-welded to form the l...

AI Technical Summary

Problems solved by technology

The conventional welding process is: floor assembly welding at 10# station → left and right side panel assembly pre-assembly at 20# station → total butt welding at 30# station → spot welding repair welding at 40# station →Carry out CO at 50# station 2 Repair welding and MIG repair welding, that is, after the tailor welding of the inner and outer plate assemblies of the left and right rear sections of the side panels and the side panel assemblies of the front section to form the left and right side panel assemblies, one-time alignment of the side panels is realized at the 30# station. In the welding process, 90% of the welds connecting the left and right rear section side wall assemblies to the floor cannot be spot welded, and it is necessary to carry out CO at 50# station 2 Repair welding, not only the welding strength of the car body is poor, but also the assembly quality of the interior and exterior trim is difficult to guarantee at the same time, and the production efficiency is low

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