SU854613A2

SU854613A2 - Die for cutting section

Info

Publication number: SU854613A2
Application number: SU792842442A
Authority: SU
Inventors: Владимир Николаевич Карпов; Давыд Андреевич Кроилин; Николай Егорович Торопов
Original assignee: Предприятие П/Я А-3858
Priority date: 1979-11-26
Filing date: 1979-11-26
Publication date: 1981-08-15

Description

Изобретение относитс i заготовительному производству машиностроительных заводов , может быть использовано дл резкипрофильиого материала.The invention relates to the pre-production of machine-building plants, and can be used to cut a profile material.

По основному авт. свид. № 336099, известен штамп дл резки профил , содержащий верхний и нижний ножи, закреплённые на. верхней плите клинь , размещенные в нижней плите подпружиненные ползушкн и зажимающие заготовку под действием клиньев прижимы, каждый «з которых шарнирно установлен на одной из подпружиненных ползущек, которые оснащены упругими прокладками, создающими усилие противодавлени иа прижимах, образующих при смыкании ползушек профиль, соответствующий разрезае-мому (1).According to the main author. swith No. 336099, a stamp is known for cutting a profile containing upper and lower knives attached to. the upper plate is a wedge, spring-loaded creeps placed in the bottom plate and clamping the workpiece under the action of the wedges momu (1).

Недостатком данного штампа вл етс образование дефектов на боковой поверхности , профил в виде царапин и борозд, так как прижимь образуют профиль, соответствующий разрезаемому, лишь в оп-. ределенный момент работы. Кроме того, это снижает степень чистоты среза профил .The disadvantage of this stamp is the formation of defects on the side surface, the profile in the form of scratches and grooves, since the pressure forms the profile corresponding to the cut, only in op-. certain moment of work. In addition, it reduces the purity of the cut profile.

Цель изобретени - повышение качества реза.The purpose of the invention is to improve the quality of the cut.

Поставленна цель достигаетс тем, что штамп дл резки профил снабжен опорами по числу прижимов, при этом .кажда опора шарнирно смонтирована на Соответствующем ей прижиме.This goal is achieved by the fact that the profile cutting die is provided with supports according to the number of clamps, while the support is pivotally mounted on the corresponding clamp.

На фиг. 1 изображен штамп, общий вид, 5 разрез; на фиг. 2 - сечение на фиг. 1; ;на фиг. 3 - расположение опор с прижимами перед резкой; иа фиг. 4 - то же, в процессе резки.FIG. 1 shows a stamp, general view, 5 section; in fig. 2 is a sectional view in FIG. one; in fig. 3 - arrangement of supports with clamps before cutting; FIG. 4 - the same in the cutting process.

На верхней плите 1 штамла жестко креп тс верхний нож 2 и два клина 3. В нижне- плите 4 ycтaf oвлёны подпружиненные ползушки 5, имеющие скосы и возмс жиость перемещени в направл ющих 6, в пазах ползущек размещены упругие прокладки 7On the upper plate 1 of the stitch, the upper knife 2 and two wedges 3 are rigidly fastened. In the lower plate 4 yc taf spring-loaded sliders 5 are provided, which have bevels and can be moved in the guides 6, elastic pads 7

15 и щариирно закрепленные прижимы 8 с (иарнирно смонтированными иа них опоДами 9, причем шарниры 10, соедии ю1Дке прижимы с опорами, расположены под верхним ножом, а шарниры соедни ют ползушки 5 с прижимами 8. Верхний прижим15 and clamps 8 securely fixed (with hinged support 9, with hinges 10, joints of clamps with supports, located under the upper knife, and hinges connecting the sliders 5 with clamps 8. Upper clamp

Claims

2ff 12 is elastically connected to the top plate and is designed to hold the workpiece on the lower knife 13. The length of the workpiece is determined by the position of the stop 14. The cutting of the prof. In the die is carried out as follows. The profile is laid on the lower knife 13 until it stops 14. When lowering the plate I with knife 2 and wedges 3, the wedge slides along the bevels creep 1 hect 5, bringing them closer to the front 6, 3 together with the gaskets 7 and clamps 8 with the supports 9 Upper when, press 12 lowers and presses the workpiece su to the lower knife 13 located on the bottom plate (.4. The supports 9 take the shape of the cut profile from the moment it comes into contact with it, which is achieved by interchanging the supports 9 around the hinge I), connecting clamps 8 with supports 9. With the beginning of the cutting process, the part is cut off rofil presses on the clamps 8 to 9 supports, schrem camping omit them. Bearing 9, located on contact with the profile, transmits pressure 8 through hinge 10; ii p) pressing 8 With the support 9, turning around 1 of 1 of 10 and 1, the cut profile remains in shape during the entire peak of the work of the stamp. The elastic prokpal, ki 7 counteracts the pressure of the profile;) pressure) with supports, providing a clean c) ez, and the arrangement of the hinges 10 connecting the pressure sections in the space under the upper knife 2 ensures the rotation of the pressure elements 8 connected to the slider 5, in the direction of the upper fire. During the return stroke of the press slide, the wedge 3 releases the slide 5, which, under the action of the springs, moves apart with the clamps 8 and the supports 9 and the spacers 7, thereby allowing the cut piece to fall out of the cutting zone. The upper presser 2 rises and releases the profile located on the lower knife 13. The cycle is repeated. Ensuring the close fit of the supports of 9 clips to the profile at the time of cutting in the proposed stamp ensures the i-quality of the cut. Claims for cutting profile ed. swith No. 336099, characterized in that, in order to improve the quality of the cut, it is provided with supports according to the number of clamps, wherein each support is pivotally mounted on a corresponding clamp. Sources of information taken into account in the examination I. USSR author's certificate No. 336099, cl B 23 D 15/04, B 21 D 28/14, 01/19/1970.

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