Designing of a Crank press on the Basis of High Class Planar Linkages

摘要

Currently, crank presses based on planar linkages received prevalence for presswork. One of the major problems of these presses is skewness of slide caused by eccentric application of deforming force and total linear elastic deformation of the press links and stamps under load. The skewness of the slide of the crank press reduces the accuracy of punching and causes its jamming and lead to its breakage. To eliminate these problems, it is proposed to use high-class planar linkages to design crank presses in the work. Schemes of planar linkages of class IV for designing of new crank presses were obtained. A new crank press was synthesized on the basis of planar linkages of class IV and its prototype was made. The tests of the prototype of the new crank press were carried out.