The invention relates to a vehicle body framework comprising a lower vehicle body, a left side wall and a right side wall; the lower vehicle body comprises two symmetrically-arranged lower vehicle body columns A, two front floor longitudinal beams and two rear floor longitudinal beams, and each of the left side wall and the right side wall comprises two symmetrically-arranged side wall columns A and a front threshold beam connected to the bottoms of the side wall columns A; the upper portion of the lower vehicle body column A and the upper portions of the side wall columns A are fixed throughmain positioning system connector reinforcing assembly parts, the lower portions of the side wall columns A and the lower portion of the lower vehicle body column A are fixed through auxiliary positioning system connector reinforcing assembly parts, and the rear portions of the front threshold beams and the rear portions of the front floor longitudinal beams are fixed through auxiliary positioningsystem connector reinforcing assembly parts. The left side wall, the right side wall and the lower vehicle body are located and assembled in the Y direction or the Z direction through the main positioning system connector reinforcing assembly parts, the auxiliary positioning system connector reinforcing assembly parts and the auxiliary positioning system connector reinforcing assembly parts. Themodular structural design is adopted, the complete vehicle body framework is formed through assembling, and accurate positioning can be achieved; investment of a total splicing welding production lineis omitted, the production process is simplified, and the production difficulty and cost are reduced.

    本发明涉及一种车身骨架,其包括下车体、左侧围和右侧围,下车体包括对称设置的两个下车体A柱、两个前地板纵梁以及两个后地板纵梁,左侧围、右侧围均包括对称设置的两个侧围A柱以及连接于侧围A柱底部的前门槛梁,下车体A柱上部与侧围A柱上部通过主定位系统接头强化装配件固定,侧围A柱下部与下车体A柱下部通过副定位系统接头强化装配件固定,前门槛梁后部与前地板纵梁后部通过辅助定位系统接头强化装配件固定,左侧围、右侧围与下车体均通过主定位系统接头强化装配件、副定位系统接头强化装配件、辅助定位系统接头强化装配件在Y方向或Z方向进行定位装配。本发明采用模块化结构设计,通过组装形成完整的车身骨架,能够实现精准定位;省去了总拼焊接生产线的投入,简化了生产工艺,降低了生产难度和成本。


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    Title :

    Vehicle body frame


    Additional title:

    车身骨架


    Contributors:
    CHEN DEQIANG (author) / YU PANCHENG (author)

    Publication date :

    2021-01-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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