发明名称 |
Feed-deviation preventive numerically controlled EDM method and apparatus |
摘要 |
An NC-EDM machine is safeguarded against feed errors arising from both mechanical and erosive-machining effects. The disclosed safety arrangement includes two detecting circuit units. The first unit is arranged to respond to NC-furnished driving command signals for producing a first detection signal representative of a commanded relative displacement to be effected between the tool electrode and the workpiece along a programmed machining path in a given time period. The second detecting unit is arranged to respond to effective electrical discharges caused in the EDM gap to produce a second detection signal representative of an actual relative displacement effected between the tool electrode and the workpiece along the path in the given time period. A comparator is connected to the two detecting units for comparing the first and second detection signals to produce an output signal indicative of a deviation of the actual advancement from the commanded advance.
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申请公布号 |
US4603391(A) |
申请公布日期 |
1986.07.29 |
申请号 |
US19830545147 |
申请日期 |
1983.10.25 |
申请人 |
INOUE JAPAX RES;JAPAX INC |
发明人 |
INOUE, KIYOSHI;SHIMIZU, AKIHIKO |
分类号 |
B23H7/02;B23H1/02;B23H7/04;B23H7/06;G05B19/4063;G05B19/416 |
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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