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:
May. 31, 2005
Filed:
Jan. 09, 2001
Naotake Mohri, Tokyo, JP;
Nagao Saitoh, Tokyo, JP;
Mitsuaki Akune, Tokyo, JP;
Hajime Ogawa, Tokyo, JP;
Takayuki Nakagawa, Tokyo, JP;
Yoshihito Imai, Tokyo, JP;
Naotake Mohri, Tokyo, JP;
Nagao Saitoh, Tokyo, JP;
Mitsuaki Akune, Tokyo, JP;
Hajime Ogawa, Tokyo, JP;
Takayuki Nakagawa, Tokyo, JP;
Yoshihito Imai, Tokyo, JP;
Mitusbishi Denki Kasushiki Kaisha, Tokyo, JP;
Abstract
In an electric discharge machine, wherein electric power is supplied between an electrode and a workpiece to machine the workpiece, a jumping motion is performed to temporarily increase a distance between the electrode and the workpiece. The electric discharge machine includes a detector for detecting a machining reaction force; a setting unit for setting a specified value of the machining reaction force; a comparator for comparing a detected value of the machining reaction force with a specified value of the machining reaction force; and a changing unit for changing a locus of the jumping motion so that the machining reaction force can be reduced if the comparator finds that the detected value of the machining reaction force is greater than the specified value of the machining reaction force.