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:
Feb. 14, 2006
Filed:
Oct. 22, 2003
Junichi Kato, Yamanashi, JP;
Keiichiro Miyajima, Yamanashi, JP;
Yasuo Arakawa, Yamanashi, JP;
Toshiyuki Ogata, Yamanashi, JP;
Junichi Kato, Yamanashi, JP;
Keiichiro Miyajima, Yamanashi, JP;
Yasuo Arakawa, Yamanashi, JP;
Toshiyuki Ogata, Yamanashi, JP;
Fanuc LTD, Yamanashi, JP;
Abstract
A wire electric discharge machine capable of preventing a straightness error from being caused by consumption of a wire electrode, to eliminate insufficient machining. A correction angle φ is predetermined for preventing the straightness error of the workpiece due to consumption. Correction amounts d', d′ on a program plane and an upper surface of a workpiece, respectively, are determined based on the predetermined correction angle φ, and are added to or substracted from a predetermined offset amount depending on a wire electrode radius and an electric discharging gap, to determine corrected offset amounts d, don the program plane and the upper surface of the workpiece, respectively. Correction amounts dlo, dup for lower and upper wire guides in an offset direction are obtained based on the corrected offset amounts d, d, respectively, so that motion paths of upper and lower wire guides relative to the workpiece are determined.