Title:
NUMERICAL CONTROL DEVICE FOR MACHINE TOOL
Document Type and Number:
Japanese Patent JP2018069392
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a numerical control device for a machine tool that provides reduction in heat generation and stable cutting at the time of deeper cutting.SOLUTION: A numerical control device 100 controls a machine tool 150 including a spindle motor 125 constituted of an induction motor and a feed-shaft driving motor 145. The numerical control device 100 further includes: magnetic flux acquisition means 102 for acquiring the present magnetic flux of the spindle motor 125; and speed change means 103 for changing speed of the feed-shaft driving motor 145 based on the magnetic flux.SELECTED DRAWING: Figure 1
Inventors:
MORITA YUKI
OKITA HAJIME
OKITA HAJIME
Application Number:
JP2016213150A
Publication Date:
May 10, 2018
Filing Date:
October 31, 2016
Export Citation:
Assignee:
FANUC LTD
International Classes:
B23Q15/12; G05B19/416
Domestic Patent References:
| JPH11202926A | 1999-07-30 | |||
| JP2013063017A | 2013-04-04 | |||
| JP2002186295A | 2002-06-28 | |||
| JPH11202926A | 1999-07-30 | |||
| JP2013063017A | 2013-04-04 | |||
| JP2002186295A | 2002-06-28 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Tetsuo Shiba
Hiroaki Hoshino
Tetsuo Shiba
Hiroaki Hoshino