发明名称 |
WIRE-CUT ELECTRIC SPARK MACHINING APPARATUS AND METHOD |
摘要 |
<p>A wire cut electrical discharge processing device comprising a device (6) which takes up a wire electrode, the wire electrode (1) traveling along a wire conveying path; a servo motor (4B) which applies tension to the traveling wire electrode; a NC device which generates signals which indicate a set value for the tension; a force detector (9) which detects the tension applied to the wire electrode and generates signals which indicate the detected value; and a tension control device (13) which processes signals which indicate the set value of the tension and the signals which indicate the detected value of the tension and which supplies speed command signals which direct the speed of rotation of the servo motor. The tension control device comprises two continuously connected notch filters (19 and 20) which check different frequencies. The unnecessary frequency setting device (21) sets the minimum value of the unnecessary frequency for one of the notch filters and sets the maximum of the unnecessary frequency for the other notch filter. <IMAGE></p> |
申请公布号 |
EP1008413(A1) |
申请公布日期 |
2000.06.14 |
申请号 |
EP19990937895 |
申请日期 |
1999.03.04 |
申请人 |
SODICK CO., LTD. |
发明人 |
TOYONAGA, TATSUO;MINAMIKAWA, MASATERU |
分类号 |
B23H7/02;B23H7/10;(IPC1-7):B23H7/10 |
主分类号 |
B23H7/02 |
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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