CONTROLLER, MACHINE TOOL, CALCULATION METHOD, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM
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United States of America Patent
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Issued Date -
Jun 9, 2022
app pub date -
Feb 25, 2022
filing date -
Feb 25, 2022
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Abstract
A controller includes data collect circuitry configured to collect machining data including a date and a time when at least one machined portion of a workpiece has been machined by a machine tool, temperature circuitry configured to obtain, at predetermined time intervals, temperature data at positions on the machine tool, dimension data input circuitry configured to receive dimension measurement data which includes a dimension of the machined portion after the machined portion has been machined, learning data generate circuitry configured to generate learning data based on the machining data and the dimension measurement data, and machine learning circuitry configured to execute a machine learning based on the temperature data and the learning data to obtain a correction coefficient based on which a displacement caused by a change in a temperature of the machine tool is corrected according to a thermal displacement correction equation.
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