DIE SET FOR SIMULTANEOUSLY PUNCHING HOLES IN WALLS OF SEVERAL HOLLOW PARTS

摘要

FIELD: part working, namely punching holes in lateral walls of hollow parts.;SUBSTANCE: die set includes stationary plate supporting mandrel-dies and mutually joined sliders mounted with possibility of reciprocation motion in plane normal relative pressure applying axis. Punches are mounted on said sliders; units joining punches with movable plate of die set are also mounted on sliders. Said units include profiled contour follower secured to movable plate. Sliders are rigidly joined one to other. Several punches mounted in sliders are arranged at one side of mandrel-die; remaining punches are arranged at other side from mandrel-die.;EFFECT: enhanced efficiency of die set due to punching hole in two opposite walls of each part in the same working position.;2 cl, 5 dwg