发明名称 |
MACHINE LEARNING UNIT, SPINDLE REPLACEMENT JUDGING DEVICE, CONTROLLER, MACHINE TOOL, PRODUCTION SYSTEM, AND MACHINE LEARNING METHOD, WHICH ARE ABLE TO JUDGE NECESSITY OF SPINDLE REPLACEMENT |
摘要 |
A machine learning unit capable of judging the necessity of replacement of a spindle of a machine tool. A machine learning unit includes a state observing section observing a state variable comprising processing volume data showing a number of processed workpieces, processing accuracy data showing a difference between an actual dimension of a processed workpiece and a dimension target value, interruption time data showing a time period of interruption of operation of the machine tool, and replacement determination data showing a judgment result of a necessity of spindle replacement; and a learning section provided with profit-and-loss data comprising a profit per unit time or a loss per unit time, generated by a production of the processed workpiece, and a loss per unit time generated due to the spindle replacement. The learning section uses the profit-and-loss data and the state variable and learns a condition associated with the spindle replacement. |
申请公布号 |
US2017032283(A1) |
申请公布日期 |
2017.02.02 |
申请号 |
US201615222950 |
申请日期 |
2016.07.29 |
申请人 |
FANUC CORPORATION |
发明人 |
KAMIYA Yohei |
分类号 |
G06N99/00;G01B21/02;G01M13/00 |
主分类号 |
G06N99/00 |
代理机构 |
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代理人 |
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主权项 |
1. A machine learning unit configured to learn a condition associated with replacement of a spindle of a machine tool, the machine learning unit comprising:
a state observing section configured to observe a state variable representing a current state of a spindle, during a continuous operation of a machine tool, the state variable comprising processing volume data showing a total number of processed workpieces which are processed using the spindle, processing accuracy data showing a difference between an actual dimension of a processed workpiece and a dimension target value, interruption time data showing a time period of interruption of operation of the machine tool, and replacement determination data showing a judgment result of a necessity of spindle replacement; and a learning section provided with profit-and-loss data, the profit-and-loss data comprising a profit per unit time or a loss per unit time, which may be generated by a production of the processed workpiece, and a loss per unit time which may be generated due to the spindle replacement, the learning section configured to use the profit-and-loss data and the state variable and learn a condition associated with the spindle replacement. |
地址 |
Yamanashi JP |