Floor-mounted forging press - has axial load transmitting bearing between ball cups allowing piston to tilt

摘要

The floor-mounted forging press has a static piston (9) arranged on the top beam (2) and a cylinder (6) which slides on the piston and forms a toolholder. A bore extends through the piston for supplying pressure medium to the cylinder. The piston is hollow and is swivelably mounted by ball cups (16,18) at the lower end (14) of the piston and on the top beam (2) and a thrust bearing member (17) between the ball cups. The piston is held in the vertical position on the top beam via a retainer. One form of retainer is a partially resilient pressure medium pipe (15) which holds the piston (9). Alternatively, pins mounted by spherical surfaces suspend the piston, via a flange on the piston and are resiliently biased to hold the piston against the top beam without play, resiliently and freely movably. A bore is provided through the ball cups and the shoe bearing.