Patent ID: 8312752
Filing Date: 2012-11-20
Classification: B21D,Y10T

Abstract:
1. A kinematic system of movement for a clamping/pressing unit of a semifinished piece of sheet metal or the like, of panelling machines, the kinematic system comprising a frame on which a presser unit is hinged to a pin and is free to make angular movements around the pin, the a presser unit consisting of including two pairs of elements fixed to a head supporting the an upper presser tool, the presser unit being moved angularly by at least one connecting rod a pair of connecting rods driven by a first pair of lower crank cranks, wherein the presser unit is driven by a second pair of upper crank cranks, the first and second crank pairs of cranks defining an articulated mechanism, for driving the presser unit, with two degrees of freedom in sequence activated independently or simultaneously, whereby each crank of said first and second pairs of cranks is provided with said eccentric pin driven by an independent motor including a servomotor and an epicycloidal or spheroidal reduction gear acting on a respective shaft of an eccentric pin.