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    • 16. 发明公开
    • SCREW ENGAGEMENT TYPE CLAMP DEVICE, CLAMPING SYSTEM, AND FLUID PRESSURE ACTUATOR
    • 流体动力学,克莱姆斯堡
    • EP1862254A1
    • 2007-12-05
    • EP06715628.1
    • 2006-03-14
    • Kosmek Ltd.
    • YONEZAWA, Keitaro, c/o KOSMEK LTD.YAMADA, Hironori, c/o KOSMEK LTD.
    • B23Q3/06F16B1/02F16B2/02F16H25/22F16H25/24
    • F15B15/068F16B2/065Y10T29/53848Y10T74/18056
    • An annular piston (21) is inserted into a cylinder hole (20) of a housing (4) so as to be vertically movable and be prevented from rotating. Into a cylindrical hole (24) of the piston (21), a cylindrical rotating member (25) is inserted while prevented from moving vertically. A ball screw mechanism (28) is provided between the piston (21) and the rotating member (25). On an outer peripheral surface of the rotating member (25), a circulation passage (59) which communicatively connects a start end and a terminal end of a male spiral groove (56) is formed in a recessed manner. Into a guide hole (29) formed in an upper half of the housing (4), an output rod (30) is inserted rotatably and movably vertically. An input portion (41) of the output rod (30) is connected to the rotating member (25) so as to transmit rotation. By driving the piston (21) upward, a bolt (45) provided on an upper end portion of the output rod (30) is engaged with an internal threaded hole (12) of a work (10).
    • 环形活塞(21)插入到壳体(4)的气缸孔(20)中,以便可上下移动并防止旋转。 在活塞(21)的圆柱形孔(24)中,插入圆柱形的旋转构件(25),同时防止其垂直移动。 一个滚珠丝杠机构(28)设置在活塞(21)和转动件(25)之间。 在旋转构件(25)的外周面上,以凹入的方式形成有将阳螺旋槽(56)的起始端和末端连通的循环路(59)。 在壳体(4)的上半部形成的导向孔(29)中,输出杆(30)可旋转自如地插入。 输出杆(30)的输入部分(41)连接到旋转部件(25)以便传递旋转。 通过向上驱动活塞(21),设置在输出杆(30)的上端部上的螺栓(45)与工件(10)的内螺纹孔(12)接合。