US 12,474,687 B2
Vibration diagnosis assistance device, vibration diagnosis assistance method, and machining tool
Yohei Arimatsu, Yamanashi-ken (JP)
Assigned to FANUC CORPORATION, Yamanashi (JP)
Appl. No. 18/256,447
Filed by FANUC CORPORATION, Yamanashi (JP)
PCT Filed Dec. 13, 2021, PCT No. PCT/JP2021/045731
§ 371(c)(1), (2) Date Jun. 8, 2023,
PCT Pub. No. WO2022/131184, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 2020-210308 (JP), filed on Dec. 18, 2020.
Prior Publication US 2024/0027989 A1, Jan. 25, 2024
Int. Cl. G05B 19/406 (2006.01); B23Q 17/12 (2006.01); G01H 1/00 (2006.01); G05B 19/18 (2006.01)
CPC G05B 19/406 (2013.01) [B23Q 17/12 (2013.01); G01H 1/003 (2013.01); G05B 19/18 (2013.01); G05B 2219/37434 (2013.01); G05B 2219/37435 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A vibration diagnosis support device configured to support diagnosis of vibration of a rotation shaft unit of a machine tool including a numerical control device, the vibration diagnosis support device comprising:
a movable mechanism installed on the machine tool;
a mechanism control unit configured to drive the movable mechanism;
a swing command signal delivery unit configured to deliver, to the mechanism control unit, a first swing command signal in which a frequency thereof changes so as to become higher over time, or a second swing command signal in which a frequency thereof changes so as to become lower over time;
a rotation shaft control unit configured to rotate a rotation shaft installed on the rotation shaft unit;
a rotation command signal delivery unit configured to deliver a rotation command signal to the rotation shaft control unit;
an acquisition unit configured to acquire a swing frequency characteristic of the rotation shaft for each of a plurality of predetermined rotational speeds, at a time when the movable mechanism is swung in accordance with the first swing command signal or the second swing command signal in a state in which the rotation shaft is rotating in accordance with the rotation command signal; and
a display control unit configured to cause a display device to display thereon the swing frequency characteristic acquired by the acquisition unit.