The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 10, 2026
Filed:
Sep. 27, 2021
Fanuc Corporation, Yamanashi, JP;
Kouki Oikawa, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
The present invention provides a machine tool control device that makes it possible to optimally adjust a variation condition and obtain a stable chattering suppression effect. The machine tool control device is provided with: a variation command calculation unit that calculates a variation command on the basis of a speed command for a spindle motor in a machine tool and a variation condition for varying the rotation speed of the spindle motor, and generates a speed control command for controlling the speed of the spindle motor on the basis of the speed command and the variation command; a speed deviation determination unit that determines whether or not a speed deviation indicating the difference between the speed command and the actual speed of the spindle motor in a prescribed period is within a first permissible range; and a condition change unit that changes the variation condition when the speed deviation is out of the first permissible range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile