| 摘要 |
PURPOSE:To permit unmanned automatic operation by installing a plurality of holding hooks onto the body of a mechanical chuck, thus permitting simultaneous mounting and demounting of an engaging member, by means of a driving apparatus. CONSTITUTION:A rack 29 for engagement with the rack 17 on an engaging member 16 is cut on the rear side edge surface of a holding hook 28, and said hook 28 is inserted into a slot 7 by inserting the guide stripes 30 on the both side surfaces into a guiding concaved groove 9 on a front body 2, and slides in the slot 7 in the radial direction, guided in the groove 9. Therefore, the rack 29 engages with the rack 17 on the engaging member 16, at the working position where the rack 17 on the engaging member 16 is contiguous to the insde of the slot 7, and further the hood 28 engages indirectly with a slider 11 through the engaging member 16. Therefore when a draw bar 12 is pulled leftward by a driving apparatus, the holding hook 28 slides to catch an article to be worked, and when a piston 15a operates in the reverse direction, each device returns to the original position, and catching of the article is released. |
