Numerical control apparatus and control method of machine tool
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United States of America Patent
Stats
-
Jul 22, 2003
Grant Date -
Aug 9, 2001
app pub date -
Feb 5, 2001
filing date -
Feb 3, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A numerical control apparatus of a machine tool capable of shortening a machining time while maintaining a machining precision of a workpiece, provided with an analyzer for analyzing a machining program defining machining process of a workpiece by the machine tool to extract information for specifying a feed speed of a cutting tool to the workpiece and cutting/non-cutting information for defining actual cutting by the cutting tool added to a cutting feed command program from the cutting feed command program contained in this machining program, a feed speed optimizer for calculating a permissible feed speed of the cutting tool in accordance with content of the cutting/non-cutting information based on the extracted information and optimizing the feed speed of the cutting tool so as to be within the permissible feed speed, and a distribution unit for calculating control commands to be distributed to the control axes of the machine tool based on the optimized feed speed.
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