Abstract:
The present invention provides a method for positioning a return device by which the workability of a teaching operation is improved, inter-operator deviation is reduced, and the risk of interference with an object to be processed is suppressed. The method for positioning a return device which has a maintaining pin portion maintaining a lower surface of a peripheral portion of the object to be processed and has a pick portion configured to be accessible to and separable from a mount configured to be pivotable and movable in an up-and-down direction and provided with a detection unit at a tip end to detect the presence and absence of the object to be processed, includes a height determining step in which a height reference position of the pick portion is determined through the detection of an upper end edge of the maintaining pin portion by the detection unit; an advance angle determining step in which the shift angle between the radial direction of the mount and the advance direction of the pick portion is determined and the advance angle of the pick portion is corrected; an advance starting point positioning step in which the shift horizontal distance between the radial direction of the mount and the advance direction of the pick portion is determined and the advance starting point position of the pick portion is corrected; and an advance amount determining step in which the advance reference amount of the pick portion is determined from the coordinates of the maintaining pin portion. [Reference numerals] (AA) Start; (BB) Height determining step; (CC) Advance angle determining step; (DD) Advance starting point positioning step; (EE) Advance amount determining step; (FF) End