| 摘要 |
PURPOSE:To hold a work with the high accuracy by supporting a clamper supporting part freely movably vertically on a pedestal arranged along the work and providing a clamper freely turnably on an axis of a clamper supporting member to force the position of the clamper at the time of holding the work. CONSTITUTION:The work W is guided onto a free bearing 15 and its tip is butted against a stopper of a lower claw 33 and the origin is positioned. Next, a piston 41 of a cylinder 39 ascends and an upper claw 35 turns around an axis 31 and one end of the work W is held by the lower pawl 33 and the upper pawl 35. At this time, since the lower surface of the work is coincident with the upper surface of the lower pawl 33, the clamper 37 is not almost turned with respect to a box body 29. Next, when the free bearing 15 descends over (h), the work W moves on the upper surface of a needle 11. At this time, although the clamper 37 is inclined to come down toward the left, the upper surface of the lower claw 33 is formed on the surface to coincide with the lower surface of the work W, so its position is maintained horizontally and the box body 29 turns around an axis 25 and the tip is lowered downward. Accordingly, the work W is not deviated on an Y axis and worked with respect to the origin. |
