Machining failure detection device, laser cutting apparatus, and electric discharge machining apparatus

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United States of America Patent

PATENT NO 11474512
APP PUB NO 20220147036A1
SERIAL NO

17604450

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A machining failure detection device includes a machining light measurement unit that measures machining light generated at a machining point during machining; a machining sound measurement unit that measures machining sound generated at the machining point; and a computation unit that determines whether a machining failure has occurred in the machining. The computation unit includes a feature extraction unit, a determination value calculation unit, and a determination unit. The feature extraction unit extracts a machining light feature from a machining light signal measured by the machining light measurement unit, and extracts a machining sound feature from a machining sound signal measured by the machining sound measurement unit. The determination value calculation unit calculates a combined failure determination value on the basis of the machining light feature and the machining sound feature. The determination unit compares the combined failure determination value with a determination criterion to determine a failure.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI ELECTRIC CORPORATION7-3 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO 1008310

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukuoka, Teruaki Tokyo, JP 8 7
Ishikawa, Kyohei Tokyo, JP 19 9
Seguchi, Masaki Tokyo, JP 13 72

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