DIE SET FOR BENDING TROUGH CROSS SECTION PARTS

摘要

FIELD: plastic metal working, namely high-accuracy bending of sheet blanks. SUBSTANCE: die set includes die halves and holders mounted with possibility of motion normal relative to direction of stroke of press slide, main and additional mechanisms for moving die halves and holders and mechanism for returning them to initial position. Novelty is use of bent blank as pulling belt in main mechanism for moving die halves and holders. Additional mechanism includes wedge pairs with working planes parallel to walls of ready part. EFFECT: enhanced quality of trough cross section parts, lowered forming efforts due to optimized kinematics of mechanisms for common motion of die halves and blank edges. 1 dwg