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:
Oct. 24, 2017
Filed:
May. 15, 2012
Yukihiro Iuchi, Tokyo, JP;
Tomonori Sato, Tokyo, JP;
Yukihiro Iuchi, Tokyo, JP;
Tomonori Sato, Tokyo, JP;
Mitsubishi Electric Corporation, Chiyoda-ku, Tokyo, JP;
Abstract
A numerical control device () of a machine tool capable of controlling its spindle rotating speed includes: a program analyzing unit () that reads ahead a machining program () by one block or more and analyzes a command for the machine tool; and a command determining unit () that determines, based on a result analyzed by the program analyzing unit (), whether a command posterior to a spindle control command causes any machining problem when the command is executed during a spindle rotating speed change, outputs a first command, in which some problem occurs in the machining, after the spindle rotating speed reaches the commanded rotating speed, and output a second command, which is other than the first command, before the spindle rotating speed reaches the commanded rotating speed.