SU564037A1

SU564037A1 - Die for sizing hollow articles

Info

Publication number: SU564037A1
Application number: SU7602342315A
Authority: SU
Inventors: Георгий Михайлович Карпов; Владимир Иванович Меденков; Олег Алексеевич Челюк; Николай Иванович Ларин
Original assignee: Предприятие П/Я А-1158
Priority date: 1976-04-01
Filing date: 1976-04-01
Publication date: 1977-07-05

Description

II

Изобретение относитс к холодной обра ботке металлов давиением, а именно к устройствам дл калибровки полых изделийThe invention relates to the cold treatment of metals by pressure, in particular to devices for calibrating hollow articles.

Известно устройство дл калибровки внутренней поверхности труб, содержащее взрывную камеру, св занную со стволом, в котором расположен поршень, несущий дорн, уотановленннй с .можностью отделени от поршн , а на конце ствола выполнен кольцевой упор, взаимодействуюпсий с поршнем при разгоне последнего 1 A device for calibrating the inner surface of pipes is known, which contains an explosion chamber associated with a barrel in which a piston carrying a mandrel is located, which is mounted with the possibility of separation from the piston, and an annular stop is made at the end of the barrel, interacting with the piston during acceleration of the latter

Однако это устройство требует часюй ручной разборки дл возврата инструмента & исходное положение и дл съемй прокалиброванной заготовки; KpoNie того, оно не позвол ет производить калиброку наружной поверхности заготовки} конструкци ого сложна и ненадежна в работе т. к. пор шень при частых ударах об упор недолговечен и быстро изнашиваетс .However, this device requires manual disassembly to return the & tool. starting position and to remove the calibrated workpiece; Moreover, it does not allow for calibrating the outer surface of the workpiece} the structure is complex and unreliable in operation, since the pson with frequent impacts on the support is short-lived and wears out quickly.

Известен также штамп дл калибровжн труб проталкиванием : Заготовки через матрицу, содержащий матрицу с укрепленной на ней направл ющей втулкой и пуансон Причем рабоча часть пуансона выполнена Also known is a stamp for calibrating pipes by pushing: blanks through a matrix containing a matrix with a guide sleeve fixed on it and a punch. Moreover, the working part of the punch is made

разъемной в вийв двух подвижнъгк; в радиальном направлении. и подпру51ШШзниых аолуколец 2.detachable in viiv two movable; in the radial direction. and podpru51ShShznih aolukolets 2.

Однако такой штамп не позвол ет прой водить калибровку внутренней поверхности заготовки.However, such a stamp does not allow for direct calibration of the internal surface of the workpiece.

Цель изобретени осуществление калибровки внутренней поверхности издели одновременно с наружной.The purpose of the invention is the calibration of the inner surface of the product simultaneously with the outer.

Это достигаетс тем, что предлагаемый штамп снабжен дорном, один конец котороего закреплен в пуансоне, а ругой выполнен с выточкой и размещен в корпусе мат рицы , и смонтированным в корпусе механизмом фиксации дорна, выполненным в ввде подпружиненного штока, взаймойей- ствующего с Ьыточкой дорна.This is achieved by the fact that the proposed stamp is provided with a mandrel, one end of which is fixed in the punch, and the bar is made with a recess and is placed in the matrix housing, and the mandrel fixing mechanism mounted in the housing is made in the spring of a spring-loaded stem that borrows from the core of the mandrel.

На фиг. 1 показан предлагаемый шташ общий вид в разрезе, на фиг. 2 - то же, ВИД сбоку в, разрезе в положении выгрузки издели ьFIG. 1 shows the proposed stash general view in section; FIG. 2 - the same, VIEW from the side in the section in the unloading position

Claims

The stamp consists of body 1, the matrix 2 Dorn-3 is jumbled in it: fixed on the punch 4, which is connected to the movable part of the press 5. Dorn 3 is connected to the punch 4 by means of the clamp 6 and the spring 7, the sod fixing mechanism 3 in the process calibration is made in the form of a rod 8 located in the lower part of the housing 1, and a spring 9, actuated by the hydraulic actuator 1O with a piece; the center llJ. To remove the finished product 12, the stamp is provided with a puller 13 with hydraulic cylinder I.H. The stamp is operated in the following manner. /. Article 12 is loaded into the matrix 2 when the mandrel 3 is in the working position (the mandrel is engaged with the rod 8 with the help of the hydraulic cylinder 1O) and with the upper position of the punch 4. The punch 4 is lowered and, pushing the workpiece through the die 2 and the mandrel 3, calibrates its inner and outer surface. Ate calibration1 | product 12 pressure in the pneumatic cylinder 1O through fitting 11; the stem B is released and the coupling B goes out of engagement with the mandrel. When the punch 4 is raised to the upper position of the mandrel 3, under the action of the clamp 6, it rises together with it, releasing the calibrated product 12, which is removed using the puller 13. Then the punch 4 with turf 3 descends to the lowest position, through cylinder 1O it is fed compressed air, and the rod 8 again engages with the mandrel 3, locking it in the working position. Poinso 4 rises to the extreme top of the enclosure, and frees up the cavity of the die for loading the next billet. The proposed; chip is simple and allows the internal pverses to be calibrated simultaneously with the external one, as well as to unload the calibrated products without disassembling the die. Claim for calibration of hollow depressions, containing a punch and a matrix installed in the housing, f, characterized in that, in order to calibrate the inner surface of the product in time with the outer surface, it is provided with a mandrel, one end of which is fixed in the punch, and the other end is filled with an annular the recess and is placed in the housing of the die, and mounted in the housing by the mechanism for fixing the mandrel, made in the form of a spring-loaded i stem, which enters into the ring-shaped recess of the mandrel. Sources of information taken into account In the examination: l. Copyright certificate №412724, B 21 with 37 / ZO, 1971.

2. Copyright certificate bfc36O135 21 with 37/30, 1968.