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:
Jan. 07, 2020

Filed:

Jun. 05, 2018
Applicant:

Fanuc Corporation, Yamanashi, JP;

Inventors:

Satoshi Ikai, Yamanashi, JP;

Tsutomu Nakamura, Yamanashi, JP;

Tomoyuki Aizawa, Yamanashi, JP;

Assignee:

FANUC CORPORATION, Yamanashi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 19/416 (2006.01); B30B 15/00 (2006.01); B30B 15/14 (2006.01); B21D 24/02 (2006.01); B30B 15/02 (2006.01); B30B 15/26 (2006.01); B21D 24/10 (2006.01);
U.S. Cl.
CPC ...
B30B 15/0094 (2013.01); B21D 24/02 (2013.01); B30B 15/02 (2013.01); B30B 15/148 (2013.01); B30B 15/26 (2013.01); G05B 19/416 (2013.01); B21D 24/10 (2013.01);
Abstract

A servo motor controller comprises: a position command generation unit; a position detection unit; a position control unit that generates a velocity command for position control based on a position command and a position FB; a force command generation unit that generates a force command for instructing force to be applied to a subject by a driving target; a force detection unit; a force control unit that generates a velocity command for force control based on the force command and a force FB; a selection unit that selects one of the position control and the force control; and a storage unit that stores a force threshold. The selection unit selects one of the velocity commands for the position control and the force control of a smaller value. If the force FB is smaller than the force threshold, the selection unit selects the velocity command for the position control.


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