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    • 2. 发明授权
    • Hydraulic chuck
    • 液压卡车
    • US3814448A
    • 1974-06-04
    • US29763272
    • 1972-10-16
    • BUCK TOOL CO
    • BUCK J
    • B23B31/30B23B31/16
    • B23B31/16066Y10T279/1291Y10T279/19Y10T279/25
    • A chuck construction comprising a chuck body having a plurality of substantially radially movable jaw carriers slidably mounted thereon. At least one jaw carrier is drivingly connected to a driven piston which is slidably mounted on the chuck body. In one embodiment a driving piston is slidably mounted relative to the chuck body and, in association with the chuck body, defines a fluid pressure system which actuates the driven piston whereby movement of the driving piston, acting through an intermediate pressurized fluid, causes movement of the driven piston and its associated jaw carrier. The driving piston is connected to an actuating mechanism, such as a conventional draw bar. In one embodiment, all of the jaw carriers are connected to separate driven pistons which are operatively related to the fluid pressure system so that the driven pistons and their respective jaw carriers are individually slidably moved when the driving piston is moved. This chuck construction permits relative radial movement of the jaw carriers to compensate for workpiece eccentricity. In a further embodiment, the jaw carriers are mechanically interconnected to each other for simultaneous radial movement therewith and with this arrangement one or more jaw carriers as desired may be connected to a driven piston.
    • 卡盘结构,其包括卡盘主体,该卡盘主体具有可滑动地安装在其上的多个基本可径向移动的卡爪支架。 至少一个颚式载体驱动地连接到可滑动地安装在卡盘体上的从动活塞。 在一个实施例中,驱动活塞相对于卡盘主体可滑动地安装,并且与卡盘主体相关联地限定了驱动被驱动活塞的流体压力系统,由此驱动活塞通过中间加压流体作用的运动导致运动 从动活塞及其相关联的颚骨架。 驱动活塞连接到诸如常规牵引杆的致动机构。 在一个实施例中,所有颚式承载件都连接到与流体压力系统可操作地相关联的分离的驱动活塞,从而当驱动活塞被移动时,从动活塞及其相应的颚式载体单独地可滑动地移动。 该卡盘结构允许夹爪支架的相对径向移动以补偿工件偏心。 在另一个实施例中,钳口支架彼此机械相互连接以与其同时径向移动,并且根据需要,这种配置可以将一个或多个夹爪支架连接到从动活塞。