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公开(公告)号：US5810344A
公开(公告)日：1998-09-22
申请号：US839105
申请日：1997-04-23
申请人： Toshinao Nishimoto
发明人： Toshinao Nishimoto
IPC分类号： B23Q3/02 , B23B31/107 , B23Q1/00 , B25B5/06
CPC分类号： B23Q1/0072 , B23B31/1071 , B25B5/061
摘要： An annular piston (20) is inserted into a lower portion of a guide bore (17) of a housing (11), and a transmission sleeve (24) is inserted into the cylindrical bore (20a) of the piston (20) with a first annular gap (21) defined therebetween. A ring-shaped operation member (36) is inserted into an upper portion of the guide bore (17) with a second annular gap (22) defined therebetween. At the time of clamping, first a pull bolt (3) is inserted into the sleeve (24) and then the sleeve (24) is driven downward by the piston (20). Thereupon, balls (37) are changed over to an engagement position (X) by the operation member (36), so that a driving force of the piston (20) can be transmitted to a workpiece (1) through the sleeve (24), the balls (37) and the pull bolt (3).
摘要翻译： 环形活塞（20）插入到壳体（11）的导向孔（17）的下部，并且传动套筒（24）被插入到活塞（20）的圆柱形孔（20a）中，其中 第一环形间隙（21）在其间限定。 环形操作构件（36）被插入导向孔（17）的上部，其间限定有第二环形间隙（22）。 在夹紧时，首先将拉螺栓（3）插入套筒（24）中，然后套筒（24）由活塞（20）向下驱动。 因此，通过操作构件（36）将球（37）转换到接合位置（X），使得活塞（20）的驱动力可以通过套筒（24）传递到工件（1） ，滚珠（37）和拉螺栓（3）。
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公开(公告)号：US08302947B2
公开(公告)日：2012-11-06
申请号：US12745573
申请日：2008-11-28
IPC分类号： B23Q3/06
CPC分类号： B23Q3/069 , B21D37/14 , B21D43/003 , B25B5/061
摘要： A clamp rod (6) inserted into a guide hole (5) of a housing (4) has: a clamping member (10); an inner piston (12); and a tapered pressure receiving surface (13), which are provided in this order in an axial direction from a left end to a right end. An output portion (26) for locking and releasing is provided on an inner periphery of a right end portion of one outer piston (23) inserted between the inner piston (12) and the guide hole (5). A collet (33) inserted between the pressure receiving surface (13) and the guide hole (5) is formed of four divided members (34) arranged circumferentially at substantially regular intervals. An input portion (36) driven by the output portion (26) and a pressing surface (40) which makes a wedge-engagement with the pressure receiving surface (13) from a right side are respectively provided in an outer periphery portion and on an inner periphery portion of each divided member (34). A lock chamber (42) and a release chamber (47), where pressurized fluid is supplied and discharged, are provided on respective outer sides of both ends of the outer piston (23).
摘要翻译： 插入到壳体（4）的引导孔（5）中的夹紧杆（6）具有：夹紧构件（10）; 内活塞（12）; 以及从左端到右端沿轴向依次设置的锥形压力接收表面（13）。 在插入在内活塞（12）和引导孔（5）之间的一个外活塞（23）的右端部的内周上设置有用于锁定和释放的输出部分（26）。 插入在压力接收表面（13）和导向孔（5）之间的夹头（33）由四个分开的构件（34）形成，该分隔构件以基本上规则的间隔周向设置。 由输出部分（26）驱动的输入部分（36）和从右侧与压力接收表面（13）楔合的按压表面（40）分别设置在外周部分 每个分割构件（34）的内周部分。 在外活塞（23）的两端的相应的外侧设置有供给并排出加压流体的锁定室（42）和释放室（47）。
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公开(公告)号：US06371467B1
公开(公告)日：2002-04-16
申请号：US09718356
申请日：2000-11-24
IPC分类号： B23Q308
CPC分类号： B30B15/026 , B25B5/064 , B25B5/16
摘要： A bolster of a press machine has a T-shaped groove, into which a T-shaped leg of a hydraulic clamp is fitted. The clamp advances and retreats along the T-shaped groove by a pneumatic cylinder. A housing of the clamp has a side surface to which a block is fixed. The block is provided with a hydraulic locking device. When placing the clamp in a waiting condition at a retreated position, a push piston of the locking device is projected downwards from a retracted position. Then the push piston pushes an upper surface of the bolster and the thus resulting reaction force fixes the T-shaped leg to a peripheral wall of the T-shaped groove.
摘要翻译： 冲压机的垫圈具有T形槽，液压夹具的T形腿装配在该T形槽中。 夹具通过气缸沿T形槽前进和后退。 夹具的壳体具有固定块的侧表面。 该块具有液压锁定装置。 当将夹具放置在处于退避位置的等待状态时，锁定装置的推动活塞从缩回位置向下突出。 然后推动活塞推动摇枕的上表面，由此产生的反作用力将T形腿固定到T形槽的周壁上。
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公开(公告)号：US5108079A
公开(公告)日：1992-04-28
申请号：US627745
申请日：1990-12-14
CPC分类号： B30B15/026 , B25B5/061 , B25B5/16
摘要： In a hydraulic clamp with a direct operated rotary clamping-member, a clamping-member (6) is fixedly secured to the lower portion of a clamp rod (22) adapted to be actuated by a hydraulic cylinder (12). When the hydraulic cylinder (12) is actuated for clamping, the clamping-member (6) is upward straightly actuated and changed over to a clamping condition (C) after being rotated to a clamping preparation condition (B) from an unclamping condition (A), through a rotary actuation device (13) and the clamp rod (22). The clamp rod (22) is interlockingly connected to a rotary member (27) of the rotary actuation device (13) in the rotatably actuated and slidably lowered state with respect to the rotary member (27).
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公开(公告)号：US20100308521A1
公开(公告)日：2010-12-09
申请号：US12745573
申请日：2008-11-28
IPC分类号： B23Q3/06
CPC分类号： B23Q3/069 , B21D37/14 , B21D43/003 , B25B5/061
摘要： A clamp rod (6) inserted into a guide hole (5) of a housing (4) has: a clamping member (10); an inner piston (12); and a tapered pressure receiving surface (13), which are provided in this order in an axial direction from a left end to a right end. An output portion (26) for locking and releasing is provided on an inner periphery of a right end portion of one outer piston (23) inserted between the inner piston (12) and the guide hole (5). A collet (33) inserted between the pressure receiving surface (13) and the guide hole (5) is formed of four divided members (34) arranged circumferentially at substantially regular intervals. An input portion (36) driven by the output portion (26) and a pressing surface (40) which makes a wedge-engagement with the pressure receiving surface (13) from a right side are respectively provided in an outer periphery portion and on an inner periphery portion of each divided member (34). A lock chamber (42) and a release chamber (47), where pressurized fluid is supplied and discharged, are provided on respective outer sides of both ends of the outer piston (23).
摘要翻译： 插入到壳体（4）的引导孔（5）中的夹紧杆（6）具有：夹紧构件（10）; 内活塞（12）; 以及从左端到右端沿轴向依次设置的锥形压力接收表面（13）。 在插入在内活塞（12）和引导孔（5）之间的一个外活塞（23）的右端部的内周上设置有用于锁定和释放的输出部分（26）。 插入在压力接收表面（13）和导向孔（5）之间的夹头（33）由四个分开的构件（34）形成，该分隔构件以基本上规则的间隔周向设置。 由输出部分（26）驱动的输入部分（36）和从右侧与压力接收表面（13）楔合的按压表面（40）分别设置在外周部分 每个分割构件（34）的内周部分。 在外活塞（23）的两端的相应的外侧设置有供给并排出加压流体的锁定室（42）和释放室（47）。
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