Numerical control device
AssigneeFanuc Corporation
InventorKenji KAIHARA
Life of this patent
Estimating the term…
Abstract
Provided is a numerical control device that appropriately promotes the discharge of chips and enables efficient drilling. This numerical control device comprises: a deep-hole drilling execution unit that performs deep hole drilling while repeating first cutting operation to cut a workpiece while rotating a cutting tool and second cutting operation to cut the workpiece at a slower speed than the first cutting operation while rotating the cutting tool; and a chip discharge time calculation unit that calculates the chip discharge time according to the position of the cutting tool after each cut in the first cutting operation. The deep-hole drilling execution unit performs the second cutting operation during the chip discharge time.
Claims5
A numerical control device comprising:
- a deep-hole drilling execution unit configured to carry out deep hole drilling by repeatedly performing a first cutting operation of causing a cutting tool to cut into a workpiece while rotating the cutting tool and a second cutting operation of causing the cutting tool to cut into the workpiece at a feed rate lower than that of the first cutting operation while rotating the cutting tool;
- and
- a chip removal time calculation unit configured to calculate a chip removal time in accordance with a position of the cutting tool at an end of each cutting in the first cutting operation,
- wherein the deep-hole drilling execution unit performs the second cutting operation for the chip removal time.
Dependencies are inferred from the claim text.