ШТАМП ДЛЯ ДВОЙНОЙ РЕВЕРСИВНОЙ ВЫРУБКИ

摘要

FIELD: plastic working of metals, possibly precise blanking of parts. ^ SUBSTANCE: die set includes punch secured to slide of press and filled with elastic medium; cylinder with supporting plunger whose diameter is less than that of inner cylindrical surface of said cylinder; lower die embracing counter-punch and upper die resting upon elastic medium and rigidly joined with cylinder, both dies are arranged in cylinder with possibility of relative axial motion; plunger-sleeve with bead mounted in cylinder on supporting plunger with possibility of axial motion restricted by said bead relative to cylinder. Die set also includes valve with shut-off member having body with bottom. Said supporting plunger is mounted in such a way that it rests upon bottom of valve body and it is embraced by shut-off member of valve with possibility of relative axial motion. Plunger-sleeve is mounted with axial gap relative to shut-off member of valve. ^ EFFECT: enlarged manufacturing possibilities of die set. ^ 2 dwg