| 摘要 |
FIELD: plastic working of metals, namely cutting rolled pieces by blanks. ^ SUBSTANCE: die set includes casing mounted on table of press and having lower cutter; upper cutter in the form of rectangular prism and rod holder, blank holder all mounted in casing with possibility of relative translation motion in shear direction. Die set is also provided with pusher mounted in casing with possibility of relative translation motion in shear direction and with elastic cushions. Lower cutter is fixed in casing. Blank holder is in the form of frame in which are mounted: upper cutter with possibility of relative translation motion in shear direction and plunger coupled with casing. Upper cutter and rod holder may rest upon said elastic cushions. One elastic cushion is arranged in cavity restricted by upper cutter, blank holder and plunger and it is joined with other elastic cushion. The last is arranged at other side of cutting plane in cavity formed by casing, pusher, rod holder and by two mutually touching gaskets. Said gaskets are mounted with possibility of translation motion normal to shear direction in casing and in blank holder respectively and also with possibility of relative translation motion in shear direction. ^ EFFECT: lowered effort necessary for cutting operation, simplified process of rod feeding to die set. ^ 1 dwg |
