Numerical controller and computer readable storage medium
AssigneeFanuc Corporation
InventorKousuke Uno
Life of this patent
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Abstract
A numerical controller includes: a spindle load detection unit that detects time-series data on a load on a spindle when a workpiece is machined; a target load setting unit that sets a target load on the spindle; a machining time prediction unit that, based on the time-series data, predicts a machining time taken when a feed rate of the spindle is controlled so that a load on the spindle matches the target load; and a machining time output unit that outputs data on the predicted machining time.
Claims8
A numerical controller comprising:
- a processor, the processor is configured to:
- detect time-series data on a load on a spindle when a workpiece is machined;
- set a target load on the spindle;
- based on the time-series data, predict a machining time taken when a feed rate of the spindle is controlled so that a load on the spindle matches the target load;
- and
- output data on the predicted machining time, wherein,
- the processor is configured to predict the machining time based on a calculated feed rate assuming that a load on the spindle and the feed rate are proportional to each other, and calculate the feed rate based on the target load.
A non-transitory computer readable storage medium storing an instruction that causes a computer to perform:
- detecting time-series data on a load on a spindle when a workpiece is machined;
- setting a target load on the spindle;
- based on the time-series data, predicting a machining time taken when a feed rate of the spindle is controlled so that a load on the spindle matches the target load;
- outputting data on the predicted machining time;
- and
- predicting the machining time based on a calculated feed rate assuming that a load on the spindle and the feed rate are proportional to each other, and calculate the feed rate based on the target load.
Dependencies are inferred from the claim text.