| 摘要 |
PURPOSE:To eliminate misalignment between the axial center of a workpiece and the axial center of an external cylindrical grinding machine by a simple adjusting means so as to perform centering work, by providing fine adjusting means for a moving device in a holder which clamps the workpiece. CONSTITUTION:A holder 14 is mounted to the end of a robot arm 13 used as a mobile supporting device. The holder 14 equips a pair of holding members 15 holding a workpiece 10 therebetween, a holder 22 mounting the holding members 15 and a mechanism opening and closing the holding members 15. In the end part of a side face, to which the holder main unit 22 is mounted, a fine adjusting screw 21A is provided so that the axial center may be moved in the horizontal direction, while in the upper part of the side face, a fine adjusting screw 21B is provided so that the axial center may be finely moved in the vertical direction. Turning the fine adjusting screws 21A, 21B to be moved in the outer direction, the holder 14 is placed in a vertically and laterally movable condition by loosening a fixing screw 20, and the workpiece 10 is held between the holding members 15 by operating an opening and closing bar 17. |
