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Machining tool with numerical control device

  • US 10,474,122 B2
  • Filed: 08/05/2015
  • Issued: 11/12/2019
  • Est. Priority Date: 08/06/2014
  • Status: Active Grant
First Claim
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1. A machining tool, comprising:

  • a numerical control device configured to control operation of the machining tool,a fixed part, anda movable part which is movable relative to the fixed part and on which a load is to be loaded, the numerical control device comprising;

    a storage unit configured to store a weight and a gravity center position of each of the fixed part, the movable part, and the load;

    an actual gravity center calculation unit configured to, when a weight of the load changes each time, calculate an actual gravity center, the actual gravity center being a whole gravity center of the machining tool and the load, based onthe gravity center position and the weight of the fixed part stored in the storage unit,the gravity center position and the weight of the movable part stored in the storage unit,a relative position of the movable part to the fixed part, andthe gravity center position and the weight of the load stored in the storage unit;

    a target gravity center position set unit configured to set an arbitrary point based on data through an input unit as a target gravity center position for the whole gravity center of the machining tool and the load; and

    a movable part position correction unit configured to cause the movable part to move relative to the fixed part to the arbitrary point to make a position of the whole center gravity center of the machining tool and the load coincide with the target gravity center position set by the target gravity center position set unit.

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