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1. 发明授权

US5423643A Tool clamping/unclamping device 失效
标题翻译：工具夹紧/松开装置
公开(公告)号：US5423643A
公开(公告)日：1995-06-13
申请号：US25252
申请日：1993-03-02
申请人： Shigeru Suzuki , Motonori Kobara , Yasuhiro Hisatomi , Yoshinori Yamaguchi , Hiroshi Yonetani , Kiyoyuki Fukushima , Yoshimasa Sakamoto , Toru Yagami , Toshihide Kamei , Takahiro Kobi , Yoshiaki Sugimoto , Nobuyuki Kimura
发明人： Shigeru Suzuki , Motonori Kobara , Yasuhiro Hisatomi , Yoshinori Yamaguchi , Hiroshi Yonetani , Kiyoyuki Fukushima , Yoshimasa Sakamoto , Toru Yagami , Toshihide Kamei , Takahiro Kobi , Yoshiaki Sugimoto , Nobuyuki Kimura
IPC分类号： B23B31/113 , B23Q3/155 , B23C5/26
CPC分类号： B23B31/113 , B23Q3/1552 , Y10T279/17881 , Y10T408/95 , Y10T409/309408
摘要： This invention provides a tool clamping/unclamping device which allows a tool to be replaced simply and securely by another one in short time, and which prevents a lock nut from being loosened, from yielding a difference in phase, and from dropping off with respect to a main shaft. The tool clamping/unclamping device comprises a tool urging means for holding a tool holding member in its clamped state, a nut positioning means for adjusting the lock nut in its phase in rotation angle position with respect to the main shaft, a nut drop-off preventing means for regulating the amount of rotation angle of the nut, a nut loosening detection means for detecting the position of the nut in the direction of the main shaft, and/or a locking mechanism for engaging a steel ball urged by a spring with a lock hole to thereby lock the lock nut in the direction of rotation. Further, for a hollow main shaft, a relay member is attached thereto, the relay member being formed similarly to the lower end portion of the solid main shaft.
摘要翻译：本发明提供了一种工具夹紧/松开装置，其允许工具在短时间内被另一个简单且可靠地替换，并且防止锁定螺母松动，从而产生相位差，并且相对于主轴。工具夹紧/松开装置包括用于保持工具保持构件处于其夹紧状态的工具推动装置，用于相对于主轴以旋转角度位置相位调节锁紧螺母的螺母定位装置，螺母脱落用于调节螺母的旋转角度的防止装置，用于检测螺母在主轴方向上的位置的螺母松动检测装置和/或用于接合由弹簧推动的钢球的锁定机构，从而锁定锁定螺母在旋转方向上。此外，对于中空主轴，安装有中继构件，中继构件与实心主轴的下端部类似地形成。

2. 发明授权

US5344260A Main spindle apparatus of machine tool 失效
标题翻译：机床主轴装置
公开(公告)号：US5344260A
公开(公告)日：1994-09-06
申请号：US37378
申请日：1993-03-26
申请人： Shigeru Suzuki , Motonori Kobara , Yasuhiro Hisatomi , Yoshinori Yamaguchi , Hiroshi Yonetani , Kiyoyuki Fukushima , Yoshimasa Sakamoto , Toru Yagami , Toshihide Kamei
发明人： Shigeru Suzuki , Motonori Kobara , Yasuhiro Hisatomi , Yoshinori Yamaguchi , Hiroshi Yonetani , Kiyoyuki Fukushima , Yoshimasa Sakamoto , Toru Yagami , Toshihide Kamei
IPC分类号： B23B29/034 , B23B39/00 , B23B41/00
CPC分类号： B23B29/03446 , Y10T408/85892 , Y10T408/85895 , Y10T82/12
摘要： A tool holder is detachably secured to the lower end of a main spindle by means of a clamping nut having a female screw cooperating with a male screw of the main spindle such that keys are inserted into corresponding key recesses formed in an upper end face of the tool holder. Within the main spindle, there is arranged a driving shaft movably in an axial direction. Within the tool holder, a piston member is arranged movably in the axial direction. To a lower end of the driving shaft is provided a projection having a circular recess formed in an outer surface thereof. To an upper end portion of the piston member are secured a plurality of steel balls movably in a radial direction. A lower end of the piston member is formed as an inclined surface which is engaged with a cam surface of a tool fitting plate arranged movably in the radial direction. When the driving shaft is moved downward, the balls are inserted into the circular recess formed in the projection of the driving shaft so that the driving shaft is coupled with the piston member. Therefore, by moving the driving shaft up and down, the piston member is also moved up and down and this movement of the piston member is converted into the radial movement of the tool fitting plate. By moving the driving shaft upward, the tool holder may be exchanged automatically.
摘要翻译：工具架借助于具有与主轴的外螺纹配合的内螺纹的夹紧螺母可拆卸地固定在主轴的下端，使得键被插入形成在主轴的上端面中的对应的键槽中工具托架。在主轴内，沿轴向可动地设置驱动轴。在工具架内，活塞部件沿轴向移动。在驱动轴的下端设置有在其外表面形成有圆形凹部的突起。活塞构件的上端部沿径向移动地固定多个钢球。活塞构件的下端形成为与径向可动地配置的工具装配板的凸轮面接合的倾斜面。当驱动轴向下移动时，将球插入形成在驱动轴的突起中的圆形凹槽中，使得驱动轴与活塞构件联接。因此，通过上下移动驱动轴，活塞部件也上下移动，活塞部件的移动转换成工具装配板的径向运动。通过向上移动驱动轴，刀架可以自动更换。

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