| 摘要 |
857,806. Lathe details. WICKMAN Ltd., DIXON, R. J., JONES, L., and RILEY, J. S. Oct. 13, 1959 [Oct. 23, 1958], No. 33908/58. Class 83 (3). A work-transfer mechanism for single or multi-spindle automatic lathes comprises a rotatable and slidable auxiliary spindle 15, with an ejector 16, arranged on the same axis as the spindle 13 in the loading station, in the case of a multi-spindle machine, and a lever 17, pivotable and slidable with a support 18, carrying a work-gripping jaw 20 on one face and on the opposite face a countersinking tool 19. Operation.-The workpieces, which may be partly formed, are supplied through a tube 29, Fig. 2, to a notch 28 in a pivoted cradle 26. The latter is carried by a slide. 25 which is moved over to position the workpiece between the jaws 20, 21 of the clamp on the lever 17. Jaw 20 is operated by a pneumatic cylinder 23 to clamp the workpiece 14 and the lever 17 then swings to a position in line with the spindle 13 to be loaded. Meanwhile, a previous workpiece has been indexed to successive turret stations and has been picked up at the loading station 6 by the auxiliary spindle 15 and moved to the right, Fig. 1. This spindle is now moved to the left to engage the end of the workpiece and the countersinking tool 19 fixed to the lever. Spindle 15 next moves to the right and the finished workpiece is ejected. The lever 17 is next moved laterally to the left to place the new workpiece in the empty spindle 13 at station 6. |
