发明名称 |
Machine tool |
摘要 |
A machine tool with a spindle for machining a large-diameter workpiece in that a servo motor for moving a spindle in the axial direction and a variable reluctance motor for rotating the spindle are installed in a housing, and a synchronous controller for synchronizing and driving the above-mentioned servo motor and the variable reluctance motor is provided. The variable reluctance motor has a characteristic in that a large driving torque can be obtained in a low rotating speed. By using a variable reluctance motor as a spindle motor, therefore, it is possible to obtain a large torque without providing a large size motor, and also possible to realize a large-diameter machining by a small-size unit.
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申请公布号 |
US5009554(A) |
申请公布日期 |
1991.04.23 |
申请号 |
US19900577125 |
申请日期 |
1990.09.04 |
申请人 |
BROTHER KOGYO KABUSHIKI KAISHA |
发明人 |
KAMEYAMA, FUMIO;HATTORI, CHIKAMASA |
分类号 |
B23G1/16;B23B47/06;B23B47/18;B23Q1/48;B23Q5/10;H02K7/06;H02K7/20 |
主分类号 |
B23G1/16 |
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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