PROBLEM TO BE SOLVED: To provide an adjustment necessity/unnecessity determination device capable of automatically determining whether or not a shaft position has to be adjusted.;SOLUTION: An adjustment necessity/unnecessity determination device 1 of the present invention determines whether or not to need adjustment of deviation from a shaft position of each shaft provided in a processing machine 2 performing processing, after the processing of a workpiece is performed. The adjustment necessity/unnecessity determination device 1 comprises: a data acquisition part 100 that acquires a physical amount associated with the cause of the deviation from the shaft position of each shaft provided in the processing machine 2 observed during the processing; a time-sequence data storage part 200 that stores the physical amount as the time-sequence data; and an adjustment necessity/unnecessity determination part 120 that determines whether or not to need the adjustment of the deviation from the shaft position of each shaft provided in the processing machine 2, on the basis of the time-sequence data.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2020,JPO&INPIT
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