Title:
NUMERICAL CONTROLLING METHOD
Document Type and Number:
Japanese Patent JPS57211602
Kind Code:
A
Abstract:
PURPOSE:To shorten the working time and to improve the working efficiency, by prefetching a position command of the next block during a numerically controlled work and comparing an actual movement length of the movement based on this command with an allowable movement length to perform processings. CONSTITUTION:In a numerically controlled device which prefetches NC data of the next block during a numerically controlled work, an allowable movement length TD and an allowable length TW are set preliminarily. A length AD from a current position R0 of a cutting tool to a next point R1 based of data prefetch is operated, and the length TD and the length AD are compared with each other. In case of AD>=TD, the cutting tool is moved along a line R0R1, and the next block is prefetched during the movement of the cutting tool as R1 R0, R2 R1..., and this operation is repeated. In case of AD=TW, the cutting tool is moved to a position indicated by the just preceding block.
Inventors:
KISHI HAJIME
SEKI MAKI
TANAKA KUNIO
SEKI MAKI
TANAKA KUNIO
Application Number:
JP9563981A
Publication Date:
December 25, 1982
Filing Date:
June 20, 1981
Export Citation:
Assignee:
FUJITSU FANUC LTD
International Classes:
G05B19/4155; G05B19/42; (IPC1-7): G05B19/403