The invention relates to a thin-wall automobile bumper. The thin-wall automobile bumper is characterized by comprising a bumper body and a plurality of doghouse structures formed on the inner surfaceof the bumper body, and each doghouse structure is provided with a doghouse part; vertical connecting ribs are arranged on the back faces of the doghouse parts, first through holes extending in the front-back direction of the doghouse parts are formed in the root positions of the vertical connecting ribs, a plurality of reinforcing ribs distributed at intervals are formed on the inner side and theouter side of the lower ends of the vertical connecting ribs respectively, and each reinforcing rib extends in the front-back direction of the doghouse parts; and the wall thickness of the bumper body is gradually increased from the position far away from the doghouse structures to the position close to the doghouse structures. The invention further relates to a machining process of the thin-wallautomobile bumper. The machining process is characterized by comprising the following steps of: (1) preparing raw materials which are modified PP materials with elasticity modulus of not less than 2000 Mpa, (2) carrying out injection molding, and (3) demoulding and ejecting.

    本发明涉及一种薄壁汽车保险杠,其不同之处在于:其包括保险杠本体及形成于保险杠本体内表面的若干个狗窝结构,各狗窝结构分别具有狗窝部;狗窝部的背面具有竖向连接筋,竖向连接筋的根部位置开设有沿狗窝部的前后方向延伸的第一通孔,竖向连接筋下端的内外两侧分别形成有间隔排布的若干个加强筋,各加强筋分别沿狗窝部的前后方向延伸;保险杠本体上由远离狗窝结构的位置向靠近狗窝结构位置的壁厚逐渐加厚;本发明还涉及一种薄壁汽车保险杠的加工工艺,其不同之处在于:包括如下步骤,1)配制原料,原料为弹性模量不小于2000Mpa的改性PP材料;2)注塑成型;3)脱模顶出。


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    Title :

    Thin-wall automobile bumper and machining process thereof


    Additional title:

    一种薄壁汽车保险杠及其加工工艺


    Contributors:
    CHEN SONG (author) / KUANG WEI (author) / CHANG CHENGCHENG (author)

    Publication date :

    2020-12-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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