Werkstueckabnehmer fuer Drehautomaten

摘要

993,870. Lathes. KARL HULLER G.m.b.H. Aug. 1, 1962 [June 29, 1962], No. 29506/62 Headings B3B and B3T. A hollow-spindle lathe for turning ballbearing &c. rings 511 from tubular stock fed through the spindle 1 by feeding means 8 comprises a cross-slide 4 carrying a second spindle 31 and copying units 19, 20. With the stock in the main spindle, the end and outer circumference are machined by tools 26, 27 controlled hydraulically by followers 22, 23 scanning templates 24, 25. The cross-slide 4 is then moved from the Fig. 2 position to align the second spindle 31 with the main spindle 1 and permit a chuck on the second spindle to seize the machined stock-end. A parting-off tool 16, Fig. 3, then severs the machined end 511, freeing it for lateral transfer by the cross-slide to the Fig. 2 position. In this position, the exposed end and the bore are machined by tools 28, 29 controlled hydraulically by followers 33, 34 scanning templates 31, 32. Simultaneously, the exposed end of the stock is again machined by the tools 26, 27. A cam- and-gear operated pivoted transfer-arm 37, Figs. 5 and 6, mounted on the spindle-head 3 is swung from the full-line position of Fig. 6 to pass the end of the spindle 31 as the cross-slide again moves the spindle through a zone 46. In this zone, the chuck on spindle 31 is opened automatically and the finished work 511 ejected on to a hook 36 on the arm 37 by three springs (not shown) in the chuck. Further pivoting of the arm 37 to the vertical, broken-line-position, Fig. 6, allows the work to fall on to a shoot 41 leading to a discharge shoot 43. A stockguide tube 6 is supported from the machine frame, which is formed of units 13, 131, 14, 141, and a lever 10 may release the clamping device 9 of the feeding unit 8. A pivoted stock-stop 111 is operated by a hand-lever 11.