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    • 4. 发明申请
    • EXPANDING ARBOR
    • 扩展ARBOR
    • US20140353929A1
    • 2014-12-04
    • US14345354
    • 2012-09-17
    • Schaublin SA
    • René Motschi
    • B23B31/40
    • B23B31/4006B23B2231/20B23B2270/20Y10T29/49998Y10T279/1008
    • An expandable arbor for mounting a tool or work piece to a machine tool includes a mounting portion including a tubular section having conical exterior surface flaring outwardly towards a substantially closed end thereof. The arbor includes an opposing end having a plug removably disposed therein. The closed end has a finger extending axially therefrom. The mounting portion is configured to be rotatably coupled to a machine tool spindle and defines a keyway configured on a portion of an outer surface thereof. The arbor includes a clamping portion comprising an expandable sleeve slidably positioned over the finger. The finger is axially movable relative to and within the expandable sleeve. A nut is positioned over a portion of the expandable sleeve for axially retaining the expandable sleeve relative to the machine tool and allowing radial movement of the expandable sleeve. The finger is axially movable within the expandable sleeve between a clamped position and an unclamped position upon application and removal of a force to the conical exterior surface. In the clamped position, the expandable sleeve is radially expanded relative to the unclamped position.
    • 用于将工具或工件安装到机床的可扩展心轴包括安装部分,其包括具有向外朝向其基本上封闭的端部向外扩张的锥形外表面的管状部分。 心轴包括具有可拆卸地设置在其中的塞子的相对端。 封闭端具有从其轴向延伸的手指。 安装部分被构造成可旋转地联接到机床主轴并且限定构造在其外表面的一部分上的键槽。 心轴包括夹持部分,其包括可滑动地定位在手指上方的可扩张套筒。 手指可相对于可膨胀套筒内和内部可轴向移动。 螺母位于可膨胀套筒的一部分上方,用于相对于机床轴向保持可膨胀套筒并允许可膨胀套筒的径向移动。 在施加和去除锥形外表面上的力时,手指可在可扩张套筒之间在夹紧位置和松开位置之间轴向移动。 在夹紧位置,可膨胀套筒相对于未夹紧位置径向膨胀。