US 5,325,307 AGranted

Synchronized operation system for numerical control apparatus

AssigneeFanuc Corporation

InventorSeiji Akashi

Life of this patent

Estimating the term…

Loading patent…

Abstract

A synchronized operation system by which a plurality of independently controlled numerical control apparatuses (CNCs) are made to carry out a synchronized operation. An external signal generation circuit (1) supplies an external timing signal to respective CNCs (2,3), from the outside, and internal signal generation circuits (10, 20) generate internal timing signals for independently operating the CNCs (2, 3). Selection circuits (9, 19) select one of the external timing signals and the internal timing signal, and when the external timing signal is selected, the respective CNCs (2, 3) are operated by using the selected external timing signals as basic timing signals. Therefore, no time lag occurs between the basic timing signals of the respective CNCs (2, 3) an and thus the respective CNCs (2, 3) can carry out an extremely a closely synchronized operation, such as an interpolation, based on the basic timing signals.

Claims11

Dependent claims

A synchronized operation system by which a plurality of independently controlled numerical control apparatuses are made to carry out a synchronized operation, said synchronized operation system comprising:

external signal generation means for supplying an external timing signal to each of said plurality of independently controlled numerical apparatuses, from the outside;
and
each of said plurality of independently controlled numerical control apparatuses comprising:
external signal receiving means for receiving said external timing signal;
internal signal generation means for generating an internal timing signal for operating the respective one of said plurality of independently controlled numerical control apparatuses independently;
and
basic timing signal selection means for selecting one of said external timing signal received from said external signal receiving means and said internal timing signal received from said internal signal generation means of the respective one of said plurality of independently controlled numerical control apparatuses, to generate a selected signal and supplying said selected signal to the respective one of said plurality of independently controlled numerical control apparatuses as a basic timing signal.

4 more elements

Dependencies are inferred from the claim text.