TOOL LIFE PREDICTION DEVICE, TOOL LIFE PREDICTION METHOD AND MACHINE TOOL

Title:

TOOL LIFE PREDICTION DEVICE, TOOL LIFE PREDICTION METHOD AND MACHINE TOOL

Document Type and Number:

Japanese Patent JP2023154804

Kind Code:

A

Abstract:

To provide a technique capable of predicting a residual life of a tool even when a working condition is changed.SOLUTION: A tool life prediction device includes: a signal acquisition part for acquiring an output signal from a sensor for detecting a physical quantity generated by bringing each of a plurality of blades into contact with workpiece cut by rotation of a tool having the plurality of blades; a self-correlation coefficient calculation part for calculating a self-correlation coefficient of the output signal; a variation degree calculation part for calculating a variation degree between a plurality of partial waveforms which constitute the waveforms of the self-correlation coefficient and correspond to the plurality of blades; and a residual life prediction part for predicting the residual line of the tool, on the basis of an index of the variation.SELECTED DRAWING: Figure 1

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Inventors:

ISHIGURE YUKI
NONOYAMA MAKOTO
YONEZU HISAHIRO
KURISU AKIRA
TATIANA KUNDOZEROVA
MIZUNO TAKAHIRO
STOIMENOV BOYKO

Application Number:

JP2022064375A

Publication Date:

October 20, 2023

Filing Date:

April 08, 2022

Export Citation:

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Assignee:

JTEKT CORP

International Classes:

B23Q17/09

Attorney, Agent or Firm:

Patent Attorney Corporation Meisei International Patent Office

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