Method and apparatus for controlling a machine tool

Details Method and apparatus for controlling a machine tool Method and apparatus for controlling a machine tool

2006-07-04

2006-07-04

Picard, Leo (Department: 2125)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C700S013000, C700S034000, C700S054000, C700S173000, C700S174000, C700S177000, C700S187000, C700S188000

Reexamination Certificate

active

07072734

ABSTRACT:
When a command radius r of a circular interpolation control exceeds a threshold value, a computer computes a speed limit for the circular speed at which the acceleration becomes constant. When the command radius r of the circular interpolation control is less than or equal to the threshold value, the computer100computes another speed limit for the circular speed at which rω3or rω4becomes constant, where ω is the angular frequency. The computer performs the circular interpolation control by safeguarding the circular speed from exceeding one of the speed limits in accordance with the command radius r of the circular interpolation control.

REFERENCES:
patent: 4694401 (1987-09-01), Higuchi
patent: 5994863 (1999-11-01), Fujita
patent: 19639976 (1998-04-01), None
patent: 0530032 (1993-03-01), None

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