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:
Dec. 27, 1988
Filed:
Dec. 01, 1986
Nobuyuki Kiya, Hachiouji, JP;
Motoaki Yoshino, Suginami, JP;
Fanuc Ltd., Yamanashi, JP;
Abstract
In a numerical control system for a machine tool using a general-purpose motor (11) in place of at least one of servo motors, a current position of a spindle (10) driven by the general-purpose motor (11) is detected (14, 9) and is compared with a position designated by a numerical control program. When the current position approaches the position designated by the numerical control program, brake signals (MBR, BR) are generated to brake the general-purpose motor (11) or the like, and a rotation signal (MCW, MCCW) of the general-purpose motor (11) is disabled, thereby stopping the general-purpose motor (11) so as to cause the spindle (10) to stop at the position designated by the numerical control program.