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System-for-providing-time-control-data-in-a-numerical-control-system

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Details

Inventors: Koikawa, Noriyuki; Ohkubo, Tetsuo; Kawasumi, Masashi;
Assignee: OKI Electric Industry Co., Ltd. (Tokyo, JP)
Primary Examiner: Ruggiero; Joseph F.
Assistant Examiner:
Attorney, Agent or Firm: Frailey & Ratner

In a numerical control machine tool, the time that the tool or bit actually operates is counted in the control device of the numerical control system. The present time control data collection system comprises a data memory having a plurality of flags, the condition of each of which reflects the actual operation of the related tool or bit, a real time clock which provides signals at predetermined intervals, and means for counting the real time clock on the condition that the particular flag in said memory is on. The counted value is displayed either directly, or the fact that the counted value exceeds the predetermined reference value is indicated. The present system can also be implemented using a programmed micro-computer.

DETAILED DESCRIPTION The objective of the present invention is to provide an innovative system for obtaining time controlling data without the addition of special equipment as observed in a prior art.
Another objective of the present invention is to provide a system which makes it possible to calculate time for actual operation of tools and devices, which calculation is distinct from the rough calculation of a prior art.
The above and other objects are attained by a system for providing time control data in a numerical control system comprising a data memory having at least a plurality of flags, a real time clock which provides signals at predetermined intervals, an input device which inputs command information to said memory, a display/alarm device which is capable of displaying the content of said memory and of giving warning, means for counting said real time clock on the condition that the particular flag in said memory specified by the command information is ON and applying the result of the counting to said display/alarm device, and a control device for controlling the operation of the above elements.

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