| 摘要 |
PURPOSE:To permit a moving table to easily perform its coarse movement and fine movement by providing an eccentric cam mechanism in the moving table and moving a moving truck, provided with a tilt surface adapted to the eccentric cam mechanism in a base side, in a direction orthogonal with the moving direction of the table. CONSTITUTION:A moving table 3 provides a rotary shaft 5 to be arranged, and its peripheral surface turnably fits by a ball bearing 6 a disk-shaped eccentric cam 7 of large eccentric amount. A base 1 fits by a thread a moving truck 11, moved in a direction orthogonal with the moving direction of the moving table 3 by turning a thread 9, being adapted to a peripheral ring 6b of the ball bearing 6. An adapted surface 11a forms a slope. In the time of operation, the peripheral ring 6b is adapted to the slope 11a and moved roughly to right and left in accordance with the eccentric amount by turning the rotary shaft 5. The rotary shaft 5 is stopped, when the moving truck 11 is vertically moved, the peripheral ring 6b is rotated by the slope 11a, and the moving table 3 is fine moved to right and left. |
