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:
Jul. 30, 2019
Filed:
Apr. 23, 2018
Applicant:
Fanuc Corporation, Yamanashi, JP;
Inventor:
Yohei Kamiya, Yamanashi, JP;
Assignee:
FANUC CORPORATION, Yamanashi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 19/52 (2006.01); G05B 19/18 (2006.01); G07C 3/08 (2006.01); G07C 3/00 (2006.01);
U.S. Cl.
CPC ...
F16C 19/527 (2013.01); G05B 19/182 (2013.01); G07C 3/00 (2013.01); G07C 3/08 (2013.01); G05B 2219/37435 (2013.01);
Abstract
A failure detection device includes a formaldehyde sensor that detects the generation of formaldehyde, a vibration sensor that detects vibration of a spindle head, and a machine controller that detects the occurrence of an abnormality of a spindle bearing. The machine controller determines the occurrence of the abnormality of the spindle bearing and a cause of the abnormality based on a change in the output value of the formaldehyde sensor over time and a change in the output value of the vibration sensor over time.