MECHANICAL PRESS, ESPECIALLY A CUPPING PRESS

摘要

A mechanical press, especially for cupping operations in which a first outer slide is provided and within which a second inner slide is reciprocably mounted. A crankshaft is mounted in the press and has first throws thereon connected by connecting rods with the outer slide and second throws thereon connected by connecting rods with the inner slide. The throws for the outer slide are advanced circumferentially from the throws for the inner slide so that, when the crankshaft rotates, the outer slide will lead the inner slide. The outer slide carries a blanking die element for blanking out a work member while the inner slide carries a forming die element for draw forming the blanked out work member. The other elements of the dies are stationarily supported on the bed of the press. According to the present invention, the outer slide is elongated over conventional press slides and the inner slide is guided within the outer slide. Adjustments are provided for taking up any excess running clearances in the guiding arrangements for the slides and the press can thereby be maintained in efficient operation. The press construction is relatively simple and is strong and requires the minimum in maintenance.