Title:
NUMERICAL CONTROL APPARATUS AND MACHINING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/171444
Kind Code:
A1
Abstract:
A numerical control apparatus (1) is provided with a thread whirling process motor control unit (80) that controls a motor (71) which moves a thread whirling tool, a motor (72) which rotates the thread whirling tool, and a motor (73) which rotates a workpiece, on the basis of a thread lead which represents the distance traveled by the thread whirling tool per one revolution of the workpiece, a reference differential speed which represents the difference between a predetermined reference rotational speed of the thread whirling tool and the rotational speed of the workpiece, a tool blade count which represents the number of blades of the thread whirling tool, and a workpiece spindle speed which represents the rotational speed of the workpiece. The thread whirling process motor control unit (80) controls the motor (71) on the basis of the thread lead and the reference differential speed, controls the motor (72) on the basis of the thread lead, the reference differential speed, the tool blade count, and the workpiece spindle speed, and controls the motor (73) on the basis of the workpiece spindle speed.
More Like This:
Inventors:
KUMAZAWA TSUYOSHI (JP)
NAKAJIMA KAZUYA (JP)
NAKAJIMA KAZUYA (JP)
Application Number:
PCT/JP2018/008430
Publication Date:
September 12, 2019
Filing Date:
March 05, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G05B19/18; B23G1/02
Foreign References:
| JPS57100403U | 1982-06-21 | |||
| JPS6399114A | 1988-04-30 | |||
| JPH0520801U | 1993-03-19 | |||
| JPH10118842A | 1998-05-12 | |||
| JPH11105015A | 1999-04-20 | |||
| JP2008296331A | 2008-12-11 | |||
| US4278374A | 1981-07-14 | |||
| US20040081519A1 | 2004-04-29 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
Download PDF: