MACHINE LEARNING DEVICE, NUMERICAL CONTROL DEVICE, NUMERICAL CONTROL SYSTEM AND MASCHINAL LEARNING PROCESS

摘要

In order to reduce the machining time while maintaining the machining accuracy by determining an appropriate machining condition by machine learning, a machine learning apparatus 300 configured to perform machine learning with respect to a numerical control apparatus 200 that includes a machine tool 100 based on FIG a machining program operates: a state information acquiring unit 301 for obtaining state information including conditions set in the machining program including the spindle speed, the feed rate, the number of cuts and the cut size per cutting operation or a tool compensation amount, and a cycle time for cutting one Workpiece and a machining accuracy of the workpiece; an action information output unit 303 for outputting action information including modification information of the conditions included in the status information to the numerical control device; a reward output unit 3021 for outputting a reward value in gain learning based on the cycle time and the processing accuracy included in the state information; and a value function updating unit 3022 for updating an action value function based on a reward value output by the reward output unit, the status information, and the action information.