| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cover for dust collection which is movable in the longitudinal direction of a bed and inexpensive, and covers a machining table of a laser beam machine without any guide rail or a rotary cover. SOLUTION: A cover elevating/lowering device 53 to elevate/lower a cover is provided on a tip of an arm 51, and the arm is provided movable in the longitudinal direction of a bed. A cover carrying device 47 to carry the cover elevated by the cover elevating/lowering device 53 in the longitudinal direction of the bed by the movement of the arm is provided. When a work is carried in/carried out of a machining table 5 at the original position on the forward side of the bed 3, the cover 31 is elevated by the arm 51 of the cover carrying device, and easily moved to the rear side of the bed 3 together with the arm. When the work is laser beam machined, the cover 31 is easily moved to the forward side of the bed 3 as the arm 51 is moved, and loaded on the bed, locked by a cover locking device 33, and the machining table 5 is covered by the cover 31.</p> |
