Numerical controller of machine tool
AssigneeFanuc Corporation
InventorsYuuki Morita, Tadashi Okita
Life of this patent
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Abstract
A controller of a machine tool capable of suppressing heat generation and realizing a stable cutting operation during deep cutting is provided. A numerical controller for controlling a machine tool including a spindle motor formed of an induction motor and a feed axis driving motor includes: a magnetic flux amount acquisition means that acquires a present magnetic flux amount of the spindle motor; and a speed change means that changes a speed of the feed axis driving motor on the basis of the magnetic flux amount.
Claims5
A numerical controller for controlling a machine tool including a spindle motor formed of an induction motor and a feed axis driving motor, the numerical controller comprising:
- a magnetic flux amount acquisition means that acquires a present magnetic flux amount of the spindle motor;
- and
- a speed change means that changes a speed of the feed axis driving motor on the basis of the magnetic flux amount.
Dependencies are inferred from the claim text.