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. 07, 2002
Filed:
Nov. 08, 1999
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An error signal is obtained from a reference value and a value indicating a detected state in machining, a first controlled variable is obtained by adding a value obtained by multiplying the error signal by a proportion gain to a value obtained by multiplying the error signal by a first integration gain, a second controlled variable is obtained by multiplying an instruction value by a second integration gain for integration, and a value obtained by adding the first controlled variable to the second controlled variable and multiplying the sum by a machining trajectory vector is used as a controlled variable for a driving unit for adjusting a distance between an electrode and a workpiece in discharge machining. Therefore, it is possible to realize a discharge machining control method and apparatus in which the machining speed can be improved by always maintaining the discharge machining process in an optimal state.