The invention discloses an automobile swing arm bushing and a forming mold thereof. The automobile swing arm bushing comprises an inner metal tube sleeve, an outer metal tube sleeve, and a rubber pipe sleeve arranged between the inner metal tube sleeve and the outer metal tube sleeve in a pressing sleeved manner, an upper end surface and a lower end surface of the inner metal tube sleeve and an outer peripheral surface of the inner metal tube sleeve are connected in a transition manner via chamferings, the outer rim of an upper mold cavity, corresponding to the upper end surface of the inner metal tube sleeve, is provided with a ring of slope surface, and the chamferings between the upper end surface and the outer peripheral surface of the inner metal tube sleeve of the bushing are attached to the slope surface. According to the automobile swing arm bushing, the chamferings are arranged between the end surfaces of the inner metal tube sleeve and the outer peripheral surface so that the machining of the bushing is facilitated, the corresponding mold is provided with the slope surface matched with the mold, the liquid level stops rising at the lower edges of the chamferings during glue injection, the glue does not overflow the upper end surface, the glue does not enter a core hole of the inner metal tube sleeve, the overflowing direction of the glue is changed via the arrangement of the chamfering structures, waste glue coating on the upper end surface of the bushing and the core hole after molding is prevented, labor waste due to the subsequent cleaning process s avoided, and the molding quality is improved.


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    Title :

    Automobile swing arm bushing and forming mold thereof


    Contributors:
    LI GAOLIANG (author) / SUN JUN (author) / LI GAOQUAN (author)

    Publication date :

    2015-09-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS



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