| 摘要 |
1,092,670. Milling. M. VON BUSHE and T. ALTENBRACHT, [trading as TH. KIESERLING & ALBRECHT]. Sept. 3, 1965 [Oct. 24, 1964], No. 37760/65. Headings B3B, B3K and B3N. A tube-end milling machine comprises a plurality of machining positions into which the tubes are transferred by axial and longitudinal movements on a conveyer and roller beds, the tubes being held for machining by means 7a, 7b movable in a vertical plane. A tube is delivered from a shoot to rollers 4 by a conveyer 3 operated by twin eccentrics. The rollers move the tube against a stop 5 before it is carried to the tool 6a and clamped by the jaws 7a, 7b, where it is face-milled and possibly chamfered. It then passes to station 7 where it is chamfered or threaded externally. The tube is next moved laterally by rollers 4a to abut a stop 5a, and then to rollers 4b which move it against a stop 56. Similar machining takes place at stations 8 and 9. Separate motors drive the tools, rollers and conveyer. The clamping jaws such as 10, 10a, Fig. 3, are moved by an hydraulic cylinder (22) carrying the jaw 10 and connected by gearing (22a, 19b), a ring gear (17) and gearing (18a, 18b) to the jaw 10a. In a modification, the tubes are transferred in a horizontal plane and are lifted by the clamps. |
