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:
Mar. 03, 1998
Filed:
Mar. 12, 1996
Yuji Mizukami, Tokyo, JP;
Yoshihiko Tsurumi, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A numerical control device according to the present invention progressively analyzes a machining program stored in a storage device by one program block or by a plurality of program blocks, computes a migration rate and a feed speed in each axial direction from an instructed moving position of a tool and a feed speed of the tool in an interpolating section, outputs a positional instruction to an object for control for each given cycle, and has a sampling time interval computing section for computing a sampling time so that a number of instruction pulses for each sampling time under a given feed speed is kept at a constant value when a migration rate for 1 block computed in the interpolating section is divided to a number of pulses for each sampling time, and an interruption controlling section for setting a variable sampling time.