Title:
NUMERICAL CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/045162
Kind Code:
A1
Abstract:
A numerical control device for a machine tool, the numerical control device comprising a storage unit that stores a machining program for cutting a hole (4a) in a workpiece (4) through relative movement of a tool and the workpiece in the depth direction, and a control unit that controls the relative movement of the tool and the workpiece (4) on the basis of the machining program to move the tool with respect to the workpiece (4) in the depth direction from a return point (R) to a hole bottom point (Z). The return point (R) is a position retracted in the depth direction from a workpiece surface (4b) at which the hole cutting is started with the tool. The machining program includes a command on a workpiece height point (W) that is the position of the workpiece surface (4b) in the depth direction. The control unit moves the tool with respect to the workpiece (4) in the depth direction from the return point (R) to the workpiece height point (W) at a relative speed higher than a cutting feed speed.
Inventors:
UENISHI DAISUKE (JP)
OYAMADA TOMOHIRO (JP)
OYAMADA TOMOHIRO (JP)
Application Number:
PCT/JP2021/031074
Publication Date:
March 03, 2022
Filing Date:
August 25, 2021
Export Citation:
Assignee:
FANUC CORP (JP)
International Classes:
G05B19/416; B23B41/00; B23Q15/00; G05B19/4093
Domestic Patent References:
| WO2009001681A1 | 2008-12-31 |
Foreign References:
| JP2015187799A | 2015-10-29 | |||
| JPS6427838A | 1989-01-30 | |||
| JP2000343308A | 2000-12-12 | |||
| JPS62246408A | 1987-10-27 |
Attorney, Agent or Firm:
UEDA, Kunio et al. (JP)
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