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.

Date of Patent:
Jun. 30, 2020

Filed:

Feb. 07, 2018
Applicant:

Fanuc Corporation, Minamitsuru-gun, Yamanashi, JP;

Inventor:

Toshihiro Watanabe, Yamanashi, JP;

Assignee:

Fanuc Corporation, Yamanashi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B 13/02 (2006.01); G05B 19/404 (2006.01);
U.S. Cl.
CPC ...
G05B 19/404 (2013.01); G05B 13/0265 (2013.01); G05B 2219/33034 (2013.01); G05B 2219/36204 (2013.01); G05B 2219/37232 (2013.01); G05B 2219/49356 (2013.01);
Abstract

A numerical controller performs machine learning to calculate tailstock pressing force to stabilize behavior of a workpiece during lathe machining and acquires, as state information, current tailstock pressing force. Then, the numerical controller acquires, as determination data, current vibration or displacement of the workpiece, or power consumption by tailstock pressing force, updates a value function based on the acquired determination data, and outputs an adjustment value of the state information based on the updated value function.


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