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:
Sep. 05, 2017

Filed:

Apr. 08, 2013
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Tomonori Sato, Tokyo, JP;

Toru Takeyama, Tokyo, JP;

Kenji Nishiwaki, Tokyo, JP;

Assignee:

Mitsubishi Electric Corporation, Chiyoda-ku, Tokyo, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05B 19/402 (2006.01); G05B 19/4063 (2006.01);
U.S. Cl.
CPC ...
G05B 19/402 (2013.01); G05B 19/4063 (2013.01); G05B 2219/23431 (2013.01); Y02P 90/265 (2015.11);
Abstract

A numerical control device includes: a control unit controlling movement of shafts of a machine tool by a position command according to a machining program and acquiring position information on the shafts; a monitoring point determination unit determining a monitoring point in the machining program and a monitoring shaft according to the type of an instruction or an instruction related to travel described in the machining program; and a monitoring unit monitoring whether error or deviation based on the position information at the monitoring point of the monitoring shaft exceeds a predetermined threshold, wherein the control unit controls movement of the shafts based on the monitoring result of the monitoring unit, and the numerical control device further comprises an analysis unit presenting whether the cause of the error or deviation is a mechanical factor or a control factor based on the monitoring result and outputting the analysis result.


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