SU1606235A1

SU1606235A1 - Die for machining sheet blanks and sections

Info

Publication number: SU1606235A1
Application number: SU884623898A
Authority: SU
Inventors: Валентин Алексеевич Иващук; Валерий Николаевич Войтович
Original assignee: Ровенский Научно-Исследовательский Институт Технологии Машиностроения
Priority date: 1988-12-21
Filing date: 1988-12-21
Publication date: 1990-11-15

Abstract

Изобретение относитс к технологической оснастке дл обработки листового материала и профилей давлением жидкости. Цель изобретени - упрощение конструкции. Штамп содержит расположенные в нижней части матрицу 1 и выталкиватель 2, а также смонтированные в верхней части и телескопически св занные между собой прижим 3 и пуансон. Пуансон выполнен составным из средней части 5, кольцевого посто нного магнита 6 и наружной части 4. В кольцевом зазоре 8 между прижимом 3 и внутренней частью пуансона размещена магнитна жидкость. Средн часть 5 пуансона и прижим 3 выполнены из диамагнетика. При ходе ползуна пресса вниз прижим 3 и средн часть 5 пуансона воздействуют на заготовку 10. Наружна часть 4 пуансона смещаетс относительно его внутренней части, сжима пружину 9, и в полости 8 создаетс давление жидкости. При возрастании давлени этой жидкости до величины, превышающей предел прочности материала заготовки 10, происходит вырубка. 1 з.п.ф-лы, 3 ил.The invention relates to a tooling for the processing of sheet material and profiles by fluid pressure. The purpose of the invention is to simplify the design. The stamp comprises a matrix 1 and an ejector 2 arranged in the lower part, as well as a presser 3 and a punch mounted in the upper part and telescopically interconnected. The punch is made of a composite of the middle part 5, the annular permanent magnet 6 and the outer part 4. In the annular gap 8 between the clamp 3 and the inner part of the punch there is a magnetic fluid. The middle part 5 of the punch and the clamp 3 are made of a diamagnetic. As the press slider moves downward, the presser 3 and the middle part 5 of the punch act on the workpiece 10. The external part 4 of the punch is displaced relative to its internal part, compressing the spring 9, and in the cavity 8 creates a fluid pressure. As the pressure of this liquid increases to a value exceeding the tensile strength of the material of the preform 10, cutting is performed. 1 hp ff, 3 ill.

Description

Фаг.1Phage.1

Claims

Claim

1. A stamp for processing sheet blanks and profiles containing a die and an ejector located in the lower part and a clamp and punch in the upper part made of a telescopically connected outer part with an outer surface diameter equal to the diameter of the clamp surface mating with it and the diameter of the ejector, and the inner part located in the clamp hole with an annular gap filled with liquid, characterized in that, in order to simplify the design of the stamp, the inner part of the punch is made th from the middle cylindrical portion with a stepped side surface facing to the working step the greater end face of the punch, and placed at a lower level of the annular permanent magnet, the middle portion of the punch and the clamp are made of diamagnetic material, and used as a liquid magnetic fluid.

2. The stamp according to π.1, characterized by the fact that the clamp is made of a composite of the outer part with a stepped surface facing the punch and an additional ring of permanent magnet, the poles of which are similar to the poles of the magnet of the punch, a large step of the outer part when the press is placed on the side of its working end, and an additional magnet is placed on a lower stage of the outer part of the clamp ₀

FIG. 1

FIG. 2