SU821019A1

SU821019A1 - Combination-type die

Info

Publication number: SU821019A1
Application number: SU792756056A
Authority: SU
Inventors: Владимир Николаевич Горбунов; Михаил Михайлович Черных; Вадим Авксентьевич Привалов; Фридрих Григорьевич Яйленко
Original assignee: Ижевский механический институт
Priority date: 1979-04-17
Filing date: 1979-04-17
Publication date: 1981-04-15

Description

1one

Изобретение относитс к обработке металлов давлением, а именно к конструкци м комбинированных штампов дл обрезки, прошивки и правки поковок.The invention relates to the processing of metals by pressure, in particular to the design of combined dies for trimming, piercing and dressing forgings.

Известен комбинированный штамп ДЛЯ обрезки, прошивки и правки поковок , содержащий нижнюю плиту со смонтированными на ней обрезной матрицей , имеющей коническую внутреннюю поверхность, и прошивнем, верхнюю плиту с обрезнымпуансоном, а также соединённую посредством т г с верхней плитой траверсу с концентр чно установленным относительно обрезной матрицы выталкивателем fl. Недостаток известной конструкции штампа заключаетс в низком качестве работы при обработке поковок с фланцем вследствие отсутстви элементов, фиксирук цих поковку в процессе обработки.A combined stamp for cutting, flashing and straightening forgings is known, containing a bottom plate with a cut-off matrix mounted on it, having a conical inner surface, and stitching the top plate with a cut-off punch, as well as a yoke connected centrally to the cut-off matrix ejector fl. A disadvantage of the known stamp design is the poor quality of work when machining forgings with a flange due to the absence of elements fixed by the forging during processing.

Цель изобретени - повышение качества работы.The purpose of the invention is to improve the quality of work.

Это достигаетс тем, что предлагаемый комбинированный штамп дл обрезки , прошивки и правки поковок, содержащий нижнюю плиту со смонтированными на ней обрезной матрицей, имеющей коническую внутреннюю поверхность , и прошивнем, верхнюю плиту с обрезным пуансоном, а также соединенную посредством т г с верхней плитой траверсу с концентрично установленным относительно обрезной матрицы выталкивателем, снабжен секторньдми кулачками, шарнирно-установленными на выталкивателе с возможностью поворота на угол конусности матри0 цы.This is achieved by the fact that the proposed combined stamp for cutting, stitching and straightening forgings, containing the bottom plate with a cut matrix mounted on it, having a conical inner surface, and stitching the top plate with a cut punch, as well as the yoke connected to the top plate with a pusher concentrically mounted relative to the cut-off matrix, equipped with sector cams, pivotally mounted on the ejector, with the possibility of rotation by the matrix taper angle.

На фиг. 1 показан штамп в исходном положении,разрез на, фиг.2 - вид основных частей штампа в крайнем нижнем положении, разрез.FIG. 1 shows the stamp in the initial position, the section on; FIG. 2 shows the main parts of the stamp in the lowest position, section.

Штамп содержит нижнюю п иту 1, The stamp contains the bottom p ityu 1,

5 со смонтированными, на ней прошив- t« нем 2 и обрезной матрицей 3; верхнюю плиту 4 со смонтированным на ней обрезным пуансоном 5, соединенную 5 with mounted, on it firmware t-t it 2 and a cut-off matrix 3; the top plate 4 is mounted on it with a cut punch 5 connected

0 посредством т г 6 и втулок 7 с подвижной траверсой 8 с закрепленным на ней выталкивателем 9. На выталкивателе шарнирно установлены секторные кулачки 10, в которые уста5 навливают поковку 11. Кулачки охватывают поковку по боковой поверхности по всему периметру и представл ют собой в плане, например, часть цилиндрического кольца, ограниченного секторными поверхност ми. Нижн 0 by means of tg 6 and sleeves 7 with a movable head plate 8 with an ejector 9 fixed on it. The ejector cams 10 are hinged on the ejector, into which they install a forging 11. The cams embrace the forging on the lateral surface along the entire perimeter and are in plan, for example, a portion of a cylindrical ring bounded by sector surfaces. Bottom

Claims

0, the cam base is rounded and has a tide for centering the forging on the die. The upper and inner side surfaces of the cams are made in the form of a forging. The operation of the stmpmp is as follows. The forging 11 is installed in sector cams 10, which in this case are unfolded and the cobble is forged on the matrix 3. When forged, it does not touch the burr of the matrix. When the top plate 4 moves downwards, the forging with sector cams 10 by the ejector 9 and crosshead 8 is held in its initial position by means of wedging the cams in the matridal 3 cone. and the forging flange due to the effect of the conical surface of the die 3 on the forging flange and the cams. The processing ends with a fig. 2) when the flange of the forging enters the gauge of the matrix 3. The walls of the forging acquire a cylindrical shape, and the flange-shaped flat ring. During the course of the top plate 14 upwards, the forging is ready to be pushed out of the die by the ejector to the initial level convenient for the distance forging. The use of the proposed stam improves the quality of work when machining forgings with a flange by fixing the machined forgings using sector cams. Formula for an etching Combined stamp for cutting, stitching and dressing forgings, containing the bottom plate with a cutter mounted on it, having a conical inner surface, and stitching, the top plate with a cut punch, and also connected by means of a cutter with the top plate to a cross bar with the end “A pusher tricorically mounted with respect to the cut-off matrix, characterized by the fact that, in order to improve the quality of work, it is equipped with sector cams hinged on the pusher with the possibility of turning the one on the taper angle of the matrix. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 536878, cl. B 21 3 13/02, .74.

to