YAWING CORRECTION MECHANISM FOR CONVEYED WORKPIECE AND CORRECTION METHOD THEREFOR

摘要

Provided is a yawing correction mechanism for a conveyed workpiece, comprising: a holding device (3) that holds a side section of a conveyed workpiece (5); a travel device (2) that conveys the holding device (3) along rails (6) in the workpiece feed direction (X); and support mechanisms (31, 32) that support the holding device (3) at the front section and the back section of the travel device (2) in the workpiece feed direction. The support mechanisms (31, 32) each include an eccentric shaft (38) having an axis (O3) at a position where one of either the front section or the back section is eccentric in the workpiece feed direction (X) at a predetermined eccentricity (e) from the axes (O1, O2) of drive shafts provided to the travel device (2), and the other section engages with the holding device (3) at a position that is eccentric in a direction that intersects the workpiece feed direction (X). Yawing of the conveyed workpiece (5) is corrected by pivoting the axes (O3) of the eccentric shafts (38) around the axes (O1, O2) of the drive shafts (36, 37) in order to move the positions of the holding device (3) and the travel device (2) relative to each other, thereby allowing yawing occurring during conveyance of the conveyed workpiece to be corrected while conveyance takes place.