发明名称 |
Clamping device in main shaft driving device for machine tool |
摘要 |
A clamping device in a main shaft driving device for a machine tool, in which the main shaft driving device rotationally driving a main shaft by a driving device, the clamping device includes: a braking member provided at a side of the frame and including a pressure-receiving surface and a braking portion; a pressure chamber formed by the pressure-receiving surface and the frame; and an operating fluid supplying mechanism provided for supplying the operating fluid from an operating fluid supply source to the pressure chamber. The press-contact force is caused to act upon the main shaft. The operating fluid supplying mechanism includes a switching portion that selectively supplies the operating fluid. The braking member is formed so that the braking portion causes the press-contact forces that differ from each other.
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申请公布号 |
US8505895(B2) |
申请公布日期 |
2013.08.13 |
申请号 |
US20090613042 |
申请日期 |
2009.11.05 |
申请人 |
TATSUDA YOSHINORI;TSUDAKOMA KOGYO KABUSHIKI KAISHA |
发明人 |
TATSUDA YOSHINORI |
分类号 |
B23Q1/25;B23Q1/64;B23Q16/10;B25B1/22 |
主分类号 |
B23Q1/25 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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