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    • 1. 发明申请
    • PNEUMATIC COLLET
    • 气泡
    • WO2007078807A1
    • 2007-07-12
    • PCT/US2006/047653
    • 2006-12-13
    • HR TEXTRON, INC.HANKS, John, Stephen
    • HANKS, John, Stephen
    • B23B31/20F16D1/095
    • B23B31/204B23B2260/022F16D1/091F16D2001/0906Y10T279/1208Y10T279/1224Y10T279/1249Y10T279/17111
    • A pneumatic collet assembly (20) has a housing (40), a piston (42), a collet (44), and ball bearings (48) . The piston (42) is disposed within the housing (40). A bore (92) within the piston (42) receives the collet (44). The collet (44) has a base (116) and fingers (120). The fingers (120) of the collet (44) define a center channel or bore (126) configured to receive a torsion bar (30). The central channel (126) extends along a longitudinal axis (38). The ball bearings (48) are disposed between the piston (42) and the fingers (120) of the collet (44). The piston (42) is configured to move between a first position along the longitudinal axis (38) and a second position along the longitudinal axis (38) in response to pressure changes within the housing (40). The piston (42) increases force against the ball bearings (48) to urge the fingers (120) of the collet (44) against the torsion bar (30) to clamp the torsion bar (30) .
    • 气动夹头组件(20)具有壳体(40),活塞(42),夹头(44)和球轴承(48)。 活塞(42)设置在壳体(40)内。 活塞(42)内的孔(92)容纳夹头(44)。 夹头(44)具有基部(116)和手指(120)。 夹头(44)的指状物(120)限定了构造成接纳扭杆(30)的中心通道或孔(126)。 中心通道(126)沿着纵向轴线(38)延伸。 滚珠轴承(48)设置在活塞(42)和夹头(44)的指状物(120)之间。 活塞(42)构造成响应于壳体(40)内的压力变化而在沿着纵向轴线(38)的第一位置和沿着纵向轴线(38)的第二位置之间移动。 活塞(42)增加对球轴承(48)的力,以将夹头(44)的指状物(120)推靠在扭力杆(30)上以夹紧扭力杆(30)。