Back to results
US 2018/0284720 A1Published application
Numerical controller
AssigneeFanuc Corporation
InventorKousuke Uno
Life of this patent
Estimating the term…
Abstract
A numerical controller can suppress overshoot in adaptive control and includes a speed calculation unit and a spindle load correction unit. The speed calculation unit performs PID control to adjust a feeding speed based on a spindle load measured by a measurement unit. The spindle load correction unit corrects the spindle load so as to have a value close to a target load until the spindle load reaches the target load. The speed calculation unit performs PID control using the corrected spindle load.
Claims3
A numerical controller comprising:
- a spindle load measurement unit that measures a spindle load;
- a speed calculation unit that performs PID control to adjust a feeding speed based on the spindle load;
- and
- a spindle load correction unit that corrects the spindle load so as to have a value close to a target load until the spindle load reaches the target load,
- wherein the speed calculation unit is configured to perform the PID control using the corrected spindle load.
2 more elements
Dependencies are inferred from the claim text.