Title:
NUMERICAL CONTROL DEVICE, CONTROL PROGRAM, AND CONTROL METHOD
Document Type and Number:
Japanese Patent JP2021003802
Kind Code:
A
Abstract:
To provide a technique capable of preventing an excessive cutting speed.SOLUTION: A numerical control device according to one aspect of the present disclosure, comprises: a reference speed calculation unit that calculates a spindle speed, which is the rotation speed of a spindle according to a machining program, and a feed speed, which is the movement speed of a feed shaft according to the machining program; an oscillation command calculation unit that calculates an oscillation command, which is a periodic command fluctuation component superimposed on a command of the feed shaft, on the basis of the spindle speed, the feed speed and a preset oscillation frequency magnification; a setting acquisition unit that acquires an upper limit value of the frequency of the oscillation command; and an adjustment unit that adjusts the frequency of the oscillation command, or adjusts at least one of the spindle speed and the oscillation frequency magnification, so that the frequency of the oscillation command does not exceed the upper limit value.SELECTED DRAWING: Figure 1
Inventors:
MORIHASHI RYO
SONODA NAOTO
SONODA NAOTO
Application Number:
JP2020086543A
Publication Date:
January 14, 2021
Filing Date:
May 18, 2020
Export Citation:
Assignee:
FANUC LTD
International Classes:
B23Q15/08; B23B1/00; G05B19/4093; G05B19/416
Domestic Patent References:
| JP2019028597A | 2019-02-21 | |||
| JP2018195002A | 2018-12-06 | |||
| JP2001150201A | 2001-06-05 | |||
| JP2018181103A | 2018-11-15 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Tetsuo Shiba
Hiroaki Hoshino
Tetsuo Shiba
Hiroaki Hoshino