Side-frame vehicle body and assembly method thereof

Abstract

Disclosed are a side-frame vehicle body and an assembly method thereof. The side-frame vehicle body comprises a body front end, a tail end module, a compartment bottom plate, and side body frames on two sides. Each side body frame is characterized in that an upper front pillar tube and an upper rear pillar tube obliquely extending down forwardly and backwardly, respectively, are welded to the front and rear ends of a top tube in a sleeving manner, a lower front pillar tube and a lower rear pillar tube obliquely extending up forwardly and backwardly, respectively, are welded to the front and rear ends of a bottom tube in a sleeving manner, the upper and lower front pillar tubes are welded in a sleeving manner, the upper and lower rear pillar tubes are also welded in a sleeving manner, and a middle pillar is welded and connected between the top and bottom tubes. The front, middle and rear pillars are integrated in each side body frame; material can be centrally used for the body outer frame which bears force; the sleeved tube assembled structure allows parts to be shared and development cost to be lowered, and the car manufacture demands of different customers are met fast.

Description

technical field [0001] The invention relates to a structure of a vehicle body, in particular to a vehicle body with a side wall beam frame and an assembly method thereof. Background technique [0002] In order to meet the large demand of consumers for vehicles, the automobile market needs to produce vehicles quickly. For this reason, in terms of structural design, almost all vehicles are produced with a unibody body structure. The car body is simplified from the unitized (unitized-body) car body. Its concept is that the car body structure is welded and combined by folded grooved steel beams and pressed sheet metal parts into an integral rigid car shell. In particular, the sheet metal parts are also used as a link to jointly bear the structural load of the car body. [0003] However, although the above-mentioned monolithic car body structure can meet the needs of rapid production of vehicles, the car body structure designed in this way is interlocking with the structure betw...

AI Technical Summary

Problems solved by technology

[0003] However, although the above-mentioned monolithic car body structure can meet the needs of rapid production of vehicles, the car body structure designed in this way is interlocking with the structure between the sheet metal parts and the car body beams. Therefore, when the model needs to be modified, It is impossible to quickly modify the overall model, resulting in high manufacturing costs for car manufacturers to develop new models

Images