发明名称 |
Control system of grinding machine |
摘要 |
The control system is provided in a grinding machine composed of an axially movable rotational shaft having a grinding tool and being supported magnetically by electromagnets. The control system includes a target position modifying controller for modifying or shifting a reference target levitating position of the rotational shaft in a retreating direction away from a workpiece reaches a predetermined amount. The control system further includes a rigidity modifying controller operative during quick feed operation of the rotational shaft for making a rigidity of the rotational shaft lower than that in the grinding operation by adjusting exciting currents of the electromagnets. The control system still further includes a dressing controller operative during dressing of a new grinding tool for detecting that the grinding tool begins to touch a dresser and for judging that the dressing is completed just when an arithmetic value calculated based on the detection reaches a predetermined value.
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申请公布号 |
US5133158(A) |
申请公布日期 |
1992.07.28 |
申请号 |
US19900606539 |
申请日期 |
1990.10.31 |
申请人 |
SEIKO SEIKI KABUSHIKI KAISHA |
发明人 |
KIHARA, HIROYUKI;OMORI, HIDEKI |
分类号 |
B24B41/04;G05B19/39;G05B19/402 |
主分类号 |
B24B41/04 |
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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