发明公开
- 专利标题： SPINDLE DEVICE
- 专利标题（中）： 主轴装置
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申请号： EP16174040.2申请日： 2012-06-28
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公开(公告)号： EP3100805A1公开(公告)日： 2016-12-07
- 发明人: YONEYAMA, Hiroki , IWASAKI, Osamu , OGURI, Shoichiro , INAGAKI, Yoshifumi , KATSUNO, Yoshiaki
- 申请人： NSK Ltd.
- 申请人地址： 6-3, Ohsaki 1-chome Shinagawa-ku, Tokyo 141 JP
- 专利权人： NSK Ltd.
- 当前专利权人： NSK Ltd.
- 当前专利权人地址： 6-3, Ohsaki 1-chome Shinagawa-ku, Tokyo 141 JP
- 代理机构： Grünecker Patent- und Rechtsanwälte PartG mbB
- 优先权： JP2011159093 20110720; JP2011159094 20110720; JP2011160973 20110722; JP2011160974 20110722; JP2011160975 20110722; JP2011160976 20110722; JP2011222158 20111006
- 主分类号： B23B19/02
- IPC分类号： B23B19/02 ; B23Q11/12
摘要：
In a spindle device 10 of a built-in motor type, a rotary shaft 12 includes a first cylindrical member 71 made of a metal material, and a second cylindrical member 72 made of carbon fiber composite material, disposed on an outer peripheral surface of the first cylindrical member 71 and having an outer peripheral surface on which a rotor 20 is fitted. Therefore, it is possible to suppress the increase in temperature of the rotary shaft or a bearing caused by heat generated from the rotor, and to improve machining precision.
公开/授权文献
- EP3100805B1 SPINDLE DEVICE 公开/授权日：2018-09-26
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