发明授权
- 专利标题: Tool clamping/unclamping device
- 专利标题(中): 工具夹紧/松开装置
-
申请号: US25252申请日: 1993-03-02
-
公开(公告)号: US5423643A公开(公告)日: 1995-06-13
- 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
- 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
- 申请人地址: JPX Kawasaki JPX Yamatokoriyama
- 专利权人: Kuroda Seiko Co., Ltd.,Mori Seiki Co., Ltd.
- 当前专利权人: Kuroda Seiko Co., Ltd.,Mori Seiki Co., Ltd.
- 当前专利权人地址: JPX Kawasaki JPX Yamatokoriyama
- 优先权: JPX4-082720 19920304; JPX4-230004 19920828; JPX5-007521 19930120
- 主分类号: B23B31/113
- IPC分类号: B23B31/113 ; B23Q3/155 ; B23C5/26
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.