TOOL SERVICE LIFE DETECTION DEVICE AND TOOL SERVICE LIFE DETECTION METHOD

WIPO Patent Application WO/2018/229870

A1

Provided is a tool service life detection device that detects the service life of a tool for machining a workpiece. The tool service life detection device comprises: a machining load measurement device that measures, as a machining load value, a load applied to a tool when a workpiece is machined; and a signal processing device that determines the service life of the tool on the basis of the machining load value, for each performance of machining, measured by the machining load measurement device. The signal processing device calculates, on the basis of the machining load values measure for each number of times of machining, a degree of machining difficulty indicating the degree of difficulty of machining the workpiece, compares the calculated degree of machining difficulty and a determination criteria value indicating a determination criteria for the service life of the tool, and determines that the tool service life has been reached if the degree of processing difficulty exceeds the determination criteria value.

WO/2019/068765	CUTTING INSERT WITH SENSOR ARRANGEMENT AND METHOD FOR MANUFACTURING A CUTTING INSERT
JPS59169748	METHOD OF HANDLING ABNORMALITY IN AUTOMATIC MACHINING EQUIPMENT
JPS6284958	METHOD OF MANAGING TOOL LIFE

OKUSHITA RYUTARO (JP)
MIYAMOTO YUSAKU (JP)
OSAWA AKIHIRO (JP)

PCT/JP2017/021811

December 20, 2018

June 13, 2017

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MITSUBISHI ELECTRIC CORP (JP)

B23Q17/09

JP2011230206A	2011-11-17
JP2002521201A	2002-07-16
JP2004130407A	2004-04-30
JP2005309936A	2005-11-04
JPS61132859A	1986-06-20

KISA PATENT & TRADEMARK FIRM (JP)

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