Method of stopping machining operation in machine tool and machining controlling apparatus for implementing the same
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United States of America Patent
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-
Sep 30, 2003
Grant Date -
Apr 4, 2002
app pub date -
Sep 27, 2001
filing date -
Oct 3, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A machining controlling apparatus numerically controls a wheel spindle stock and a spindle apparatus, and performs the machining operation of a workpiece by a grinding wheel. When a power failure has been detected by a power-failure detecting unit, a grinding machine is stopped after the grinding wheel is retreated from the workpiece within a very short period until the controlling operation by the machining controlling apparatus becomes impossible.
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