Production process for left-rear side inner car door panel assembly

Abstract

The invention relates to a production process for a left-rear side inner car door panel assembly. The production process comprises the following steps: welding an upper frame assembly; welding an anti-collision rod assembly; welding the inner car door panel assembly; locating the inner car door panel assembly; installing the upper frame assembly; locating an upper nut plate and a lower nut plate; clamping the upper frame assembly, the inner car door panel assembly, the upper nut plate and the lower nut plate through a clamp, and welding contact points of the upper frame assembly, the inner car door panel assembly, the upper nut plate and the lower nut plate; installing an outer panel support plate; clamping the outer panel support plate through a clamp, and welding contact points of the outer panel support plate and a fixture in an eighth step; installing the anti-collision rod assembly; and clamping the anti-collision rod assembly through a clamp, and welding contact points of the anti-collision rod assembly and a fixture in a tenth step. According to the production process, a process error of the left-rear side inner car door panel assembly is reduced, a large fit clearance or fit extrusion of the left-rear side inner car door panel assembly is avoided, assembly and machining for left-rear side outer car door panels relative to the left-rear side inner car door panel assembly is benefited, and the rejection rate of left-rear side car doors is reduced.

Description

technical field [0001] The invention belongs to the field of vehicle production and manufacture, relates to the production and manufacture of small and micro automobiles, in particular to a production process for a left rear side door inner panel assembly. Background technique [0002] The left rear side door is tooled through a series of processes of hemming, gluing, and electric welding on the left rear side door inner panel assembly and the left rear side door outer panel. The door inner panel assembly on the left rear side mainly includes the door B-pillar, upper strip, door C-pillar, triangular window panel, glass lift guide rail, outer panel reinforcement panel, door inner panel, lock body reinforcement panel, outer panel support panel, upper, A series of structural parts such as the lower nut plate, anti-collision bar, anti-collision bar, front and rear connecting plates, etc. The existing production process of the left rear side door inner panel assembly is relativel...

AI Technical Summary

Problems solved by technology

The door inner panel assembly on the left rear side mainly includes the door B-pillar, upper strip, door C-pillar, triangular window panel, glass lift guide rail, outer panel reinforcing plate, door inner panel, lock body reinforcing plate, outer panel supporting plate, upper, A series of structural parts such as the lower nut plate, anti-collision bar, anti-collision bar, front and rear connecting plates, etc. The existing production process of the left rear side door inner panel assembly is relatively complicated. After the one-to-one correspondence assembly of each part is completed, the one-time welding of each part is carried out, which is prone to the problem of large fit gap between parts or tight fit between parts, which is not conducive to the connection between the inner panel assembly of the left rear side door and the left side. Further processing of the outer panel of the rear side door resulting in scrap of the left rear side door

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