SU884791A1

SU884791A1 - Die for workng parts with holes

Info

Publication number: SU884791A1
Application number: SU802906148A
Authority: SU
Inventors: Александр Юрьевич Аверкиев; Алексей Николаевич Шипилов; Юрий Алексеевич Алюшин; Юрий Александрович Аверкиев
Original assignee: Ростовский-На-Дону Завод-Втуз
Priority date: 1980-04-04
Filing date: 1980-04-04
Publication date: 1981-11-30

Description

JJ

Изобретение относитс к обработке металлов давлением, в частности к штампам дл обработки деталей с отверстием.The invention relates to the processing of metals by pressure, in particular to dies for machining parts with a hole.

Известен штамп дл правки кольцевых деталей раст жением, содержащий конусный пуансон и р д внутренних секций, расположенных на основании и соединенных с ним ступенчатыми винтами, проход щими через овальные отверсти секций и позвол ющими им перемешатьс в радиальном направлении, при этом секции снабжены ст жными пружинами , усилие которых направлено к центру 1A stamp for straightening annular parts with a stretch is known, which contains a tapered punch and a number of internal sections located on the base and connected with it by stepped screws that pass through the oval holes of the sections and allow them to mix in the radial direction, while the sections are provided with tension springs whose effort is directed towards the center 1

Недостатком указанного штампа вл етс то, что в нем отсутствуют прижимы секций пуансона и заготовки, что делает невозможным изготовление деталей с внутренней ступицей , охватывающей имеющеес отверстие.The disadvantage of this stamp is that it lacks the clamps of the punch sections and the workpiece, which makes it impossible to manufacture parts with an inner hub, covering the existing hole.

Наиболее близким по технической сущности и достигаемому результату и предлагаемому вл етс штамп дл обработки деталей с отверстием , содержащий верхнюю плиту с жестко установленным стержнем с коническим концом, охватывающим этот конец разжимным секционным пуансоном, втулкой, охватывающей стержень, и подвижной в осевом направлении обоймой, охватывающей втулку и контактирующей с ее наружной поверхностью , а также нижнюю плиту с отверстием, расположенным соосно со стержнем и имеющим диаметр больше диаметра рабочего КОНЕЙ стержн , и расположенным концентрично с отверстием углублением с дном, контактирующим с опорными плоскост ми секций пуансона {2.The closest in technical essence and the achieved result and proposed is a stamp for machining parts with a hole, containing an upper plate with a fixed stem with a tapered end, an expanding section punch covering this end, a sleeve encompassing the stem, and an axially movable sleeve the sleeve and in contact with its outer surface, as well as the bottom plate with a hole located coaxially with the rod and having a diameter greater than the diameter of the working HORSE rod, and aspolozhennym concentrically with the opening a recess with a bottom in contact with the reference planes {2 sections punch.

10ten

Недостаток известкою штампа - невозможность образовани утолщени на кромке отверсти в детали в св зи с отвутствием прижима заготовки и несовершенной конструкцией прижима секций пуансона.The lack of a lime stamp is the impossibility of forming a bulge on the edge of the hole in the part due to the lack of clamping of the workpiece and an imperfect design of pressing the punch sections.

1515

Цель изобретени - образование утолщени на кромке отверсти в детали.The purpose of the invention is the formation of a bulge on the edge of the hole in the part.

Claims

This goal is achieved by the fact that a die for machining parts with an opening containing an upper plate with a rigidly mounted rod 20 with a conical end, an expanding section punch covering this end, a sleeve enveloping the rod, and an axially movable sleeve covering the sleeve and contacting it. the outer surface, as well as the bottom plate with a hole located coaxially with the rod and having a diameter greater than the diameter of the working end of the rod, and a recess with the bottom in contact with the reference planes of the rod s punch is provided with a spring-loaded in the axial F anpavlenii clamping plate disposed between the sleeve and the sections of the punch, the male yoke and formed with up responses with Gnehm for rod passes, the rod is formed with a shoulder, the section of the punch are provided koltsev1mi pruzh1shami and disposed between the collar sterzhgn and pressure plate The hub is rigidly mounted on the top plate, and the clip is spring-loaded to the bottom plate. In addition, on the facing surfaces of the cage and the bottom plate there are ribs that are equidistant to the contour of the punch. FIG. 1 shows a stamp, longitudinal section; in fig. 2 - part processing zone with 1twanson, plan view. The stamp contains the top plate 1 with the rod 2 with a tapered end, covering this end of the expandable sectional punch 3, the sleeve 4 and the pressure plate 5 which is spring-loaded to it, covered by the clip 6 which is spring-loaded to the plate 1, perform the pressing function of the workpiece 7. At the conical end of the rod 2 flange 8, which closes the chain of parts: sleeve 4 — plate 5 — punch 3, sections of which are mounted by annular springs 9. On the lower pin 10 there is a hole 11 for passing the end of the rod 2 and a recess 12, the bottom 13 of which serves as a bearing surface and 3. In addition, the holder 6 and the lower plate 10 are ribs 14, the contour punch equidistant. The stamp works as follows. The workpiece 7 is placed on the bottom plate 10. When the top plate 1 is lowered, the punch 3 enters the hole of the workpiece 7, rests on the bottom plate 10 and begins to unclamp under the action of the rod 2 descending through the hole P. At the same time, the yoke 6 presses the workpiece 7 to the bottom plate W, with the ribs 14 embedded in the material of the workpiece 7, preventing the outflow of material, and in the deformation chamber formed by the plate 5, the sleeve b, the punch 3 and the recess 12 of the plate 10, the required thickening is formed. Plate 5 serves to hold the sections of the punch 3 in the same plane. When lifting the upper plate 1, the annular springs 9 compress the punch section 3 until the shoulder 8 stops. The proposed stamp makes it possible to manufacture parts such as disks with an internal hub from flat sheet blanks with a hole, reduce material consumption, increase productivity and improve the quality of parts. Claim 1. Stamp for machining parts with a screwdriver, comprising an upper plate with a rigidly mounted rod with a conical end, which surrounds this end with an expandable sectional punch, a sleeve, which surrounds the rod, and an axially movable sleeve, which surrounds the sleeve and contacts with its outer the surface, as well as the bottom plate with a hole located coaxially with the rod and having a diameter greater than the diameter of the working end of the rod, and which is located concentrically with the hole recess with the bottom, I contact It is provided with supporting planes of the punch sections, characterized in that, in order to form a thickening on the edge of the hole in the part, it is provided with an axially spring-loaded pressure plate located between the sleeve and the punch sections, covered by the sleeve and formed with a hole for passage of the rod, rod is made with a collar ,. the punch sections are provided with annular springs and are located between the collar of the rod and the pressure plate, the sleeve is rigidly mounted on the upper plate, and the sleeve is spring-loaded to the lower plate. 2. A stamp in accordance with claim 1, that is, in that on the surfaces of the holder and the bottom plate facing each other, the ribs are equidistant to the contour of the punch. Sources of information taken into account in the examination 1. The author's certificate of the USSR N 31.5486, cl. B 21 D 22/06, 23.03.70.

2.Mesterin V.T. Listova stamping. Atlas of schemes and designs of stamps. Mechanical Engineering, 1979, p. 119, rice, 333 (prototype).