The invention belongs to the technical field of automobile manufacturing spare and accessory parts, and particularly relates to a commercial vehicle light weight pocket beam which comprises a pocket beam body located below a gearbox, the two ends of the pocket beam body are connected to a frame longitudinal beam through supports, and the pocket beam body comprises an upper pocket beam shell and a lower pocket beam shell which are connected. A hollow inner cavity is formed between the upper pocket beam shell and the lower pocket beam shell. The invention further provides a forming method of the lightweight pocket beam of the commercial vehicle. According to the commercial vehicle lightweight pocket beam and the forming method thereof, the multiple layers of plates are adopted, the mode that forming is conducted after welding is conducted is adopted, the pocket beam is free of internal stress, and the failure risk can be reduced; the pocket beam is integrally formed through a hot air expansion mold, so that the size precision and the connection rigidity of the pocket beam are improved; the strength is high, the weight is greatly reduced, and the purpose of light weight is achieved.
本申请属于汽车制造零配件技术领域,具体为一种商用车轻量化兜梁,包括兜梁,所述兜梁位于变速箱的下方,所述兜梁的两端通过支架连接在车架纵梁上,所述兜梁包括相连接的上兜梁壳体和下兜梁壳体,所述上兜梁壳体和下兜梁壳体之间形成中空的内腔。本申请还提供一种商用车轻量化兜梁的成形方法。本申请提供一种商用车轻量化兜梁及其成形方法,采用多层板材采用先焊接后成型方式,使兜梁无内应力,可减少失效风险;兜梁通过热气胀模具一体成型,提高了兜梁的尺寸精度和连接刚度;不仅强度高,而且重量大大减轻,实现了轻量化的目的。
Commercial vehicle lightweight pocket beam and forming method thereof
一种商用车轻量化兜梁及其成形方法
2024-04-16
Patent
Electronic Resource
Chinese
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