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    • 8. 发明授权
    • Adjustable quick change jaw apparatus
    • 可调式快换钳装置
    • US5845912A
    • 1998-12-08
    • US852637
    • 1997-05-07
    • Robert J. Grupa
    • Robert J. Grupa
    • B23B31/16
    • B23B31/16275B23B31/16283B23B2260/004B23B2260/088Y10T279/1906Y10T279/1993Y10T279/3468
    • An adjustable quick change chuck jaw apparatus for attachment to a master jaw in the front face of a rotary chuck allows a machinist to quickly change the chuck jaws from one diameter to another. A generally rectangular jaw body is connected to the master jaw of a rotary chuck and extends radially outward from the central rotational axis of the chuck. A jaw member is slidably mounted on one side of the jaw body to travel longitudinally relative thereto and has a workpiece gripping portion extending perpendicularly outward. A rotatable shaft mounted in the jaw body has a threaded segment configured to become engaged with mating threads on the jaw member when rotated to an engaged position and to become disengaged therefrom when rotated to a disengaged position. A spring biased locking pin in the jaw body allows selective engagement with the shaft to prevent rotation thereof in a locked position and to become disengaged therefrom to allow rotation in an unlocked position. Upon depressing the locking pin, the shaft may be rotated to its disengaged position wherein the jaw member may be manually removed from the jaw body or moved thereon relative to the workpiece and accurately adjusted to grip the workpiece. Upon releasing the locking pin, the shaft is prevented from rotating and the jaw member is maintained in the adjusted position.
    • 用于连接到旋转卡盘前表面中的主钳的可调快速卡盘卡爪装置允许机械师快速地将卡盘爪从一个直径改变到另一直径。 大致矩形的钳口体连接到旋转卡盘的主钳口并从卡盘的中心旋转轴线径向向外延伸。 颚构件可滑动地安装在颚体的一侧上,以相对于其纵向移动并具有垂直向外延伸的工件夹持部分。 安装在钳口本体中的可旋转轴具有螺纹段,该螺纹段被构造成当旋转到接合位置时与钳口构件上的配合螺纹接合,并且当旋转到脱离位置时与其脱离接合。 卡爪体中的弹簧偏置锁定销允许与轴的选择性接合以防止其在锁定位置的旋转,并且与锁定位置脱离啮合以允许在解锁位置旋转。 在按压锁定销时,轴可以旋转到其脱离位置,其中钳口构件可以手动地从钳口主体移除或相对于工件移动到其上并被精确地调节以夹持工件。 在释放锁定销时,防止轴旋转,并且钳口构件保持在调整位置。