The invention relates to a piston mechanism and a clamping device.The piston mechanism comprises a shell, a plurality of driving assemblies and a guiding piece, a plurality of moving cavities are defined in the shell, the shell is provided with a first end and a second end, the driving assemblies are movably arranged in the moving cavities, each driving assembly is provided with a sliding block, and the sliding blocks are in guiding fit with the guiding piece; the at least two sliding blocks are suitable for moving oppositely or reversely, a first communicating hole and a second communicating hole are formed in the first end of the shell, and each communicating hole communicates with the end, close to the first end, of the at least one moving cavity and communicates with the end, close to the second end, of the at least one moving cavity. Therefore, the pressure medium flows to the first end and the second end of the shell from the first communicating hole or the second communicating hole at the same time, the pressure medium can drive the multiple driving assemblies to synchronously move in the opposite direction or the reverse direction, and the number of medium providing pieces needed when the piston mechanism works can be reduced; and the movement synchronism of a plurality of sliding blocks in the piston mechanism can also be improved.

    本申请涉及一种活塞机构以及夹持装置,活塞机构包括壳体、多个驱动组件和导向件,壳体内限定出多个运动腔体,壳体具有第一端和第二端,驱动组件活动设置于运动腔体内,每个驱动组件均具有滑块,滑块与导向件导向配合,至少两个所述滑块间适于对向或反向运动,壳体的第一端设有第一连通孔和第二连通孔,每个连通孔均与至少一个运动腔体的靠近第一端的端部连通且与至少一个运动腔体的靠近第二端的端部连通。由此,通过使压力介质从第一连通孔或第二连通孔同时流动至壳体的第一端和第二端,压力介质可以驱动多个驱动组件同步对向或反向运动,可以减少活塞机构工作时所需的介质提供件的数量,也可以提高活塞机构中多个滑块的运动同步性。


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    Title :

    Piston mechanism and clamping device


    Additional title:

    一种活塞机构以及夹持装置


    Contributors:
    LIU FANYIN (author) / LI HAIPING (author)

    Publication date :

    2023-12-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B66C Krane , CRANES



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