| 摘要 |
PURPOSE:To execute timely cleaning of a positioning hole by providing a wiping means of dust, which can be driven to rotate freely, on a position which can be opposed to positioning holes of an upper turret and a lower turret, so that it can abut and contact freely to the positioning hole. CONSTITUTION:A dust wiping means 27 is provided on a position which can be opposed to positioning holes 3c, 5c of an upper turret 3 and a lower turret 5, so that it can be driven to rotate freely by a rotation driving means 26, and also it can abut and contact freely to the holes 3c, 5c by a movement driving means 25. When the turrets 3, 5 are positioned, the wiping means 27 is driven to rotate and driven to move and contacts to the positioning holes 3c, 5c, and wipes and removes the sticking dust. In this way, it becomes possible to execute cleaning of the positioning hole in the course of a positioning and holding operation of the turret, and an idle time of a machine can be eliminated.
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