SU816653A1

SU816653A1 - Die for extruding box-shaped articles

Info

Publication number: SU816653A1
Application number: SU782601110A
Authority: SU
Inventors: Иван Васильевич Куликов
Original assignee: Харьковский Ордена Ленина Политехни-Ческий Институт
Priority date: 1978-04-07
Filing date: 1978-04-07
Publication date: 1981-03-30

Description

(54) ШТАМП ДЛЯ ВЫДАВЛИВАНИЯ ИЗДЕЛИЙ КОРОБЧАТОЙ ФОРМЫ(54) STAMP FOR PROMPTING THE PRODUCT OF THE SHORT-SHAPED FORM

1one

Изобретение относитс к обработке металлов давлением, а именно к конструкци м штампов дл выдавливани .The invention relates to the processing of metals by pressure, in particular to the design of extrusion dies.

Известен штамп дл выдавливани изделий коробчатой формы, содержащий нижнюю , верхнюю и промежуточную плиты, со смонтированными на них соответственно матрицей , формуюш,им и прижимным пуансонами и снабженный устройством дл создани противодавлени с плунжерами, контактируюшими с промежуточной плитой 1.A stamp for extrusion of box-shaped products is known, comprising lower, upper and intermediate plates, with a mold mounted on them, respectively, a mold, and clamping punches and provided with a device for creating counter-pressure with the plungers in contact with the intermediate plate 1.

Недостатком известного штампа вл етс невысокое качество получаемых изделий , особенно в случае наличи в них стенок переменной толш,иньг по периметру.A disadvantage of the known stamp is the low quality of the products obtained, especially in the case of the presence in them of walls of variable thickness, along the perimeter.

Цель изобретени - повышение качества изделий, изготавливаемых со стенками переменной толщины по периметру.The purpose of the invention is to improve the quality of products manufactured with walls of variable thickness along the perimeter.

Поставленна цель достигаетс тем; что штамп дл выдавливани изделий коробчатой формы, содержащий нижнюю, верхнюю и промежуточную плиты со смонтированными в них соответственно матрицей, формуюши-м и прижимным пуансоном, и снабженный устройством дл создани противодавлени с плунжерами, контактирующими с промежуточной плитой, снабжен устройством дл подъема промежуточной плиты в процессе выдавливани , выполненным в виде силовых цилиндров, размещенных в нижней плите и соединенных между собой каналами, при этом штоки поршней одних из указанных цилиндров установлены с возможностью взаимодействи с верхней плитой , а других - с промежуточной, а прижимной пуансон выполнен в виде вставки, расположенной в зоне формовки стенки дета1 , и, максимальной толщины.The goal is achieved by that; that the stamp for extrusion of box-shaped products, containing the lower, upper and intermediate plates with the matrix, molded and pressing punch mounted in them, respectively, and equipped with a device for creating counter-pressure with the plungers in contact with the intermediate plate, is equipped with a device for lifting the intermediate plate into the extrusion process, made in the form of power cylinders placed in the bottom plate and interconnected by channels, while the piston rods of one of these cylinders are installed with the possibility of interaction with the upper plate, and others with an intermediate plate, and the clamping punch is made in the form of an insert located in the zone of forming the wall of the part1, and of maximum thickness.

На фиг. Ь представлен штамп, исходное положение; на фиг. 2 - то же, перед началом работы; на фиг. 3 - то же, в конце работы.FIG. B represented by a stamp, the original position; in fig. 2 - the same, before starting work; in fig. 3 - the same at the end of the work.

Штамп содержит нижнюю Г, верхнюю 2 и промежуточную 3 плиты, соединенные направл ющими колонками. На плите 1 The stamp contains lower G, upper 2 and intermediate 3 plates connected by guide columns. On the stove 1

Claims

5, the die 4 is mounted, on the upper plate 2 a forming punch 5 in the holder 6, on the intermediate plate - the clamping punch 7. The stamp is equipped with an ejector 8. Plates 2 and 3 are connected with screws 9 with the possibility of their joint and relative movement. A backpressure device is placed in the top plate, having plungers 10 interacting with plate 3. The cavities A of this device are filled with liquid and interconnected and with the fluid flow regulator 11 by an annular cavity 5 made in plate 12. The stamp is provided with a intermediate plate lifting device 3 in the extrusion process, made in the form of power cylinders with cavities C and D, the piston rods 13 of which are in contact with the upper plate 3, and the rods 14 with the plate 3. The cavities C and D are filled with liquid and are connected to each other by the number tsevoy cavity D formed in the plate 15. The preform 16 is placed in the mold cavity 4 on the ejector 8. When lowering plates 2 and 3 there is interaction ™ "- :. | I ft ft (O. wrsJe "L: T Utp..n billet flows into the gap between the punch 5 and the die 4. At the same time, the rods 13 under the influence of the upper plate 2 are lowered, force the fluid through the cavity D into the cavity G, as a result whereby the rods 14 move together on the slab 3 at a speed equal to the required flow rate of the metal iviKvri., i .., iv, v, -x -.-. .... --- into the gap between the punch and the die at the application site counterpressure. vuarTi P PPI.POLITION OF THE BATTERY POSITION. 6 the extrusion process of the plate 3, overcoming the counterpressure force transmitted by the plunger The frame 10 is moved up, and the punch 7 controls the rate of metal outflow at the backpressure site. variable thickness perimeter Formula of the Invention A stamp for extruding box-shaped products containing a bottom, p, intermediate plate with mounted on their, respectively, matrix, forming and clamping punch, and equipped with a device for creating backpressure with plungers, contact "eG ™ -g; 1G ±. - - it is equipped with an intermediate plate lifting device in the extrusion process, made in the form of power cylinders placed in the bottom plate and interconnected by channels, while the piston rods of one of the specified cylinders interact with (by the The Qf of the clamping punch is made in the form of an insert located in the zone of the form "-" ",", ",", ".." o, r, Q / fr of the wall of the part of maximum thickness. Sources of information taken into account when examination 1. French patent number 1108725, to L. 23 K, 1964.