Rear side wall inner plate assembly structure

Abstract

The invention relates to a rear side wall inner plate assembly structure, and belongs to the technical field of vehicle design and manufacturing. The rear side wall inner plate assembly structure includes a rear side wall inner plate, a D-column upper inner plate, a D-column inner plate, a D-column lower inner plate, a rear wheel cover inner plate and a rear wheel cover outer plate; the D-column upper inner plate, the D-column inner plate and the D-column lower inner plate are welded to one another in sequence to form a D-column inner plate assembly, the lower angle of the D-column inner plateassembly is welded to and combined with the rear wheel cover inner plate, and the rear wheel cover outer plate is welded to and combined with the rear wheel cover inner plate and the rear side wall inner plate separately. According to the rear side wall inner plate assembly structure, the stamping process performance is optimized, the torsion rigidity and first-level torsion mode of a vehicle areimproved, structural weight reduction of a rear side wall can also be achieved at the same time, and the rear side wall inner plate assembly structure can be widely applied to the design of rear sidewalls of passenger vehicles with two carriages or SUVs.

Description

technical field [0001] The invention relates to the technical field of automobile design and manufacture, and more specifically, the invention relates to a rear side wall inner panel assembly structure. Background technique [0002] In the prior art, the rear side wall inner panel generally mainly consists of four parts. like figure 1 As shown, item 1 is the inner panel of the rear side wall, item 2 is the inner panel of the D-pillar, item 3 is the inner panel of the rear wheel house, and item 4 is the outer panel of the rear wheel house; At the flange edge, the rear welding edge is at the sealing surface of the tailgate opening. Among them, part 1 has a complex shape, deep punching depth, and many punching processes. In addition, because the punching process limits the punching direction, the hole position and surface of the inner panel of the rear side wall are made more complicated, which further increases the difficulty of the stamping and drawing process. , the mater...

AI Technical Summary

Problems solved by technology

Among them, part 1 has a complex shape, deep punching depth, and many punching processes. In addition, because the punching process limits the punching direction, the hole position and surface of the inner panel of the rear side wall are made more complicated, which further increases the difficulty of the stamping and drawing process. , the material can only use steel plates with better formability; the inner panel of the D-pillar is an integral part with a complex structure, and high-strength steel plates cannot be used to reduce material thickness and weight

The reinforcement plate on the D-pillar is welded to the flange edge of the rear side window: the section of the cavity formed by the reinforcement plate of the D-pillar and the inner panel of the rear side wall is larger, the stiffness of the joint at the upper end of the D-pillar is not improved, and the section of the cavity of the D-pillar increases, which affects the torsion of the body Stiffness has no effect and increases weight

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