Device and method for learning focal position offset of laser processing apparatus, and laser processing system correcting focal position offset

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United States of America Patent

PATENT NO 11565344
APP PUB NO 20200331096A1
SERIAL NO

16837236

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Abstract

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A machine learning device for learning a focal position offset of a laser processing apparatus. A data acquisition section acquires a learning dataset which includes data of a focal position command for a light-focusing optical system given to the laser processing apparatus and detection data of a physical quantity of light detected when a laser beam is emitted from a laser oscillator in accordance with a processing command including the focal position command. A learning section generates a learning model by using the learning dataset, which represents correlativity between the physical quantity of the detected light and the positional relationship of an effective light-focusing position of the light-focusing optical system relative to a workpiece. When performing processing, the physical quantity of light is detected so that a positional relationship between the workpiece and the effective light-focusing position during processing can be estimated from the detected quantity and the learning model.

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Patent Owner(s)

  • FANUC CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Watanabe, Kazuki Yamanashi, JP 110 990

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