Designing of the Stephenson II Six-Link Linkage Actuator for Servo Mechanical Press

Currently, servo mechanical presses with an actuator based on a slider-crank mechanism are widely used for stamping details. One of the major problems of these servo mechanical presses is inclination of slide caused by eccentric application of deforming force and total linear elastic deformation of the press links and stamps under load. The inclination of the slide of the servo mechanical press reduces the accuracy of punching and causes its jamming and lead to its breakage. To eliminate these problems, it is proposed to use Stephenson II six-bar linkage as an actuator of servo mechanical press. The scheme structure of the actuator of servo mechanical press with two connecting rods and one crank based on the Stephenson II six-bar linkage is obtained. Synthesis of the Stephenson II six-bar linkage was carried out. As a result of synthesis, a new actuator of servo mechanical press on the base of the Stephenson II six-bar linkage was obtained and its prototype was made. The prototype of the new actuator of servo mechanical press based on the Stephenson II six-bar linkage was tested. Testing of the prototype of the new actuator of servo mechanical press showed a good distribution of the efforts applied during the presswork and a better tolerance of the eccentric load