发明名称 |
Apparatus for detecting machining conditions in a machine tool. |
摘要 |
<p>An apparatus for detecting machining conditions in a machine tool characterised by electro-magnetic bearing means (10) for magnetically supporting at least one spindle (9,15) of the machine tool; a detector (20) for detecting a variable which depends upon the electro-magnetic state of the bearing means (10) and for producing detection signals in relation thereto; a plurality of different frequency band pass filters (32-35) coupled to the detector (20) so as to receive the detection signals from the latter; and comparator means (36a-36d) for comparing output signals of said different frequency band pass filters (32-35) with respective set values. <IMAGE></p> |
申请公布号 |
EP0431818(A2) |
申请公布日期 |
1991.06.12 |
申请号 |
EP19900312908 |
申请日期 |
1990.11.28 |
申请人 |
SEIKO SEIKI KABUSHIKI KAISHA |
发明人 |
ANDO, SHIGENORI, C/O SEIKO INSTRUMENTS INC. |
分类号 |
B23Q17/09;G05B19/416 |
主分类号 |
B23Q17/09 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|