Servo-press

mechanicalformingeccentric

In a mechanical eccentric press the ram is driven by gears that generate a sinusoidal curve, whose approaching curve to the BDC and return stroke are symmetrical. The stroke of ram in a mechanical eccentric press can be fixed or variable. There are different types of kinematics in the mechanical presses besides the conventional eccentric one, each with different ram motion curve: knuckle-joint, esadrive (modified knuckle-joint), link-drive. The driving system in a mechanical press includes: The brake-and clutch unit The flywheel The eccentric gears The articulated connecting rods for the slow motion of ram. In a Balconi Servopress some mechanical components of the driving system are replaced by one or more high torque servomotors: The flywheel The clutch unit The main motor In a Servopress the driving system is simpler, it has less mechanical components and the machine flexibility increases considerably: The press force is generated by the Servomotors The ram curve and speed are determined by the Servomotors speed In such a way it is possible to obtain in all working cycle: – an unlimited number of variable and programmable stroke lengths of ram – ram curve and slow-motion speed (approaching, working, return and stop at BDC) are programmable – it is possible to adapt the best curve, stroke length and production speed to each tool and production method. Moreover, in the BALCONI Servopresses, it is possible to program with the Multipoint function 10 different speeds or stops inside the same curve, to make special profiles and to better form material, even when using high tensile steel.