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MACHINE TOOL INCLUDING NUMERICAL CONTROLLER WITH FUNCTION TO DETERMINE REPLACEMENT TIME FOR MAINTENANCE COMPONENT

  • US 20140156057A1
  • Filed: 12/02/2013
  • Published: 06/05/2014
  • Est. Priority Date: 12/04/2012
  • Status: Active Grant
First Claim
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1. A machine tool controlled by a numerical controller, whereinthe numerical controller has a function to determine a replacement time for a maintenance component used in a movable portion of the machine tool and outputting to the machine tool an operation instruction related to the movable portion, andthe machine tool has an operation completion signal output unit that outputs, to the numerical controller, an operation completion signal indicating that the operation of the movable portion based on the operation instruction is complete, and whereinthe numerical controller includes:

  • a response time calculation unit that calculates, as a response time of operation, a time from a point in time when the numerical controller outputs the operation instruction until a point in time when the numerical control device receives the operation completion signal from the operation completion signal output unit;

    a maintenance component replacement time determination unit that determines that a time has come to replace the maintenance component used in the movable portion when the calculated response time of operation is longer than a preset set time; and

    a display unit that displays a result of determination by the maintenance component replacement time determination unit.

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