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MACHINE LEARNING DEVICE, CNC DEVICE AND MACHINE LEARNING METHOD FOR DETECTING INDICATION OF OCCURRENCE OF CHATTER IN TOOL FOR MACHINE TOOL

  • US 20180164757A1
  • Filed: 12/13/2017
  • Published: 06/14/2018
  • Est. Priority Date: 12/14/2016
  • Status: Active Grant
First Claim
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1. A machine learning device for detecting an indication of an occurrence of chatter in a tool for a machine tool, comprising:

  • a state observation unit which observes at least one state variable of a vibration of the machine tool itself, a vibration of a building in which the machine tool is installed, an audible sound, an acoustic emission and a motor control current value of the machine tool, in addition to a vibration of the tool; and

    a learning unit which generates a learning model based on the state variable observed by the state observation unit.

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