Machining condition searching device and machining condition searching method

A machining condition searching device comprising processing circuitry

• to perform generation of a machining condition to be set in a machining device,
• to perform collection of a machining state indicating each of a state of the machining device that performs machining in accordance with the machining condition, a state of a workpiece to be machined, and a state of an installation environment of the machining device,
• to perform collection of a machining result of the machining performed in accordance with the machining condition,
• to perform calculation of an evaluation value of the machining performed in accordance with the machining condition on a basis of the machining result collected by the collection of the machining result,
• to perform prediction of the evaluation value corresponding to the machining condition that has not been tried on a basis of the machining condition generated by the generation, the machining state collected by the collection of the machining state, and the evaluation value calculated by the calculation, and
• to perform construction of the at least one evaluation value prediction model in a case where a degree of change in the machining state is equal to or greater than a threshold value, and perform weighting based on the machining state on the at least one evaluation value prediction model, wherein
• the processing circuitry generates the machining condition to be tried next, using a predictive value of the evaluation value obtained by the prediction, and
• the machining condition searching device repeatedly performs each of processes performed by the collection of the machining state, the collection of the machining result, the calculation, the prediction, the construction, and the weighting until searching of the machining condition is determined to end.