Patent ID: 6240759
Filing Date: 2001-06-05
Classification: B21J

Abstract:
A forging machine comprising(a) a forging box,(b) at least two forging punches guided in a longitudinal direction along a forging punch axis in the forging box and acting against each other,(c) a separate wobble-plate drive for displacing each one of the forging punches in the longitudinal direction, each wobble-plate drive comprising(1) a wobble plate rotatably drivable about a wobble axis, the wobble axis extending parallel to, but offset from, the forging punch axis, and the wobble plate being immovable along the wobble axis, and(2) a pressure plate engaging the wobble plate and supported on an end face of the forging punch, the pressure plate forming a ball-and-socket joint with the end face, and(d) pressure spring means biasing the forging punch in the longitudinal direction to press the pressure plate and the wobble plate into frictional engagement.