摘要 |
PROBLEM TO BE SOLVED: To realize a polygon processing device and a polygon processing method in which plural pieces of polygon processing are applied to a workpiece held by a rotating main shaft with using a polygon cutter which is mounted to a tool spindle that rotates synchronously to the main shaft.SOLUTION: A polygon processing method, in which cutting processing is applied by using a tool other than a polygon cutter after a first polygon processing is applied to a workpiece held by a main shaft with using the polygon cutter held by a tool spindle, and a second polygon processing is applied with using the polygon cutter after the cutting processing, comprises a synchronization stop step in which the main shaft is stopped at a specified rotation position under a condition that the main shaft and the tool spindle for polygon processing are rotated synchronously upon ending the first polygon processing, a synchronization release step in which synchronization between the main shaft and the tool spindle is released upon starting cutting processing, a main shaft stop step in which the main shaft is stopped at a specified rotation position upon ending the cutting processing and a synchronization start step in which the main shaft and the tool spindle are rotated synchronously upon starting the second polygon processing. |