SU874243A1

SU874243A1 - Bending die

Info

Publication number: SU874243A1
Application number: SU772543189A
Authority: SU
Inventors: Александр Александрович Савинов; Олег Иванович Бабич; Анатолий Игнатьевич Доронин; Борис Викторович Забродкин
Original assignee: Череповецкий Ордена Ленина Металлургический Завод Им.50-Летия Ссср
Priority date: 1977-11-16
Filing date: 1977-11-16
Publication date: 1981-10-23

Description

(54) ШТАМП ДЛЯ ГИБКИ(54) STAMP FOR FLEXIBLE

1one

Изобретение относитс к обработке металлов давлением, в частности к оснастке дл листовой штс1мповки.The invention relates to the processing of metals by pressure, in particular to the equipment for sheet metal work.

Известен штамп дл двойной гибки листовой заготовки, содержащий пуансон/ матрицу в виде поворотного формующего кулачка, шарнирно установленного в корпусе, и упор дл кулачка, а также прижим-выталкиватель 1 .A known stamp for double bending sheet blanks, containing a punch / die in the form of a rotary forming cam, pivotally mounted in the housing, and an emphasis for the cam, as well as a pressing-ejector 1.

.Однако известный штамп может быть использован дл получени изделий незамкнутого профил с ограниченной длиной верхней полки.However, the well-known stamp can be used to obtain products of an open profile with a limited upper shelf length.

Наиболее близким по технической сущнос ги к изобретению вл етс штамп дл гибки из штучных заготовок. деталей замкнутого контура, содержащий пуансон с консольной рабочей и установленные в корпусе на шарнирах формуинцие кулачки, каждый из которых имеет профильный паз по форме рабочей части пуансона ЗЗ.The closest in technical essence to the invention is a die for bending from piece blanks. parts of a closed contour, containing a punch with a cantilever working and mounted forimensionie cams in a hinged body, each of which has a profile groove in the shape of the working part of the punch ZZ.

Однако известный штамп предназначен только дл изготовлени деталей цилиндрической формы, так как в случае изготовлени деталей другой конфигурацйи раскрытие кулачков затруднено .However, the known stamp is intended only for the manufacture of cylindrical parts, as in the case of manufacturing parts of a different configuration, the opening of the cams is difficult.

Целью изобретени вл етс расширение технологических возможностейThe aim of the invention is the expansion of technological capabilities.

штампа за счет улучшени условий дл съема деталей сложной форйы.stamp by improving the conditions for removing complex fory parts.

Дл достижени этой цели в штампе дл гибки из штучных заготовок деталей замкнутого контура, содержащем пуансон с консольной рабочей частью и установленные в корпусе на шарнирах формующие кулачкиj каждый из которых имеет паз по форме рабочей To achieve this goal, in a stamp for bending from piece blanks of parts of a closed loop, containing a punch with a cantilever working part and forming cams in the hinged body, each of which has a groove in the shape of a working

to части пуансона, в стенках корпуса выполнены профилированные пазы, а шарниры формующих кулачков установлены в упом нутых пазах.To the parts of the punch, shaped grooves are made in the body walls, and hinges of the forming cams are installed in the said slots.

Дл улучшени условий работы шар15 ниров кулачков на одной из внутренних стенок и на обращенных к ней поверхност х кулачков выполнены выемки и ответные им выступы.In order to improve the working conditions of the cam balls on one of the inner walls and on the cam surfaces facing them, grooves and protrusions corresponding to them are made.

На фиг. 1 и 2 представлен штамп FIG. 1 and 2 stamped

20 на разных этапах гибки и съема деталиJ на фиг. 3 - сечение А-А на фиг.1 на фиг. 4 - сечение Б-В на фиг.З.20 at different stages of bending and demounting of parts J in FIG. 3 is a section A-A in FIG. 1 in FIG. 4 - section BB in FIG.

Штамп содержит корпус 1, пуансон The stamp includes a housing 1, a punch

25 2 с консольной частью 3, матрицу из двух поворотных формируклцих кулачков 4 с пазами, соответствующими консольной части пуансона 2. Кулачки 4 установлены в фигурных пазах 5 корпуса 1 посредством шарниров 6.Штамп25 2 with a cantilever part 3, a matrix of two rotary forming cams 4 with grooves corresponding to the cantilever part of the punch 2. The cams 4 are installed in the shaped grooves 5 of the housing 1 by means of hinges 6. Stamp

Claims

30 is provided with stops 7 to limit the movement of the cams 4. To facilitate the movement of the hinges 6 of the cams 4 along the inclined section of the grooves 5, protrusions 8 are made on the walls of the housing 1, and the lateral surface of the forming cams 4 of the depression 9 and the direction of the inclined sections of the depression 9 and the projections 8 coincide with the direction of the inclined portions of the grooves 5 when the insertion of the forming cams 4 is closed, the stamp is provided with a pusher 10 and a spring 11 for separating the cams 4. the stamp works as follows. In the initial position, before the start of punching, the cams 4 are opened and turned to the stops 7, their hinges, b, occupy the lowest position in the grooves 5. The workpiece 12 is installed on the upper plane of the cams. When the punch 2 moves down, the workpiece 12 bends and lowers to the lower surface of the forming groove of each of the cams 4. With the further movement of the punch 2 down, its pressure is transmitted to the cams 4 and the latter are turned towards each other around the hinges b, bending the ends of the workpiece. When the punch 2 moves upwards, the cams 4 raise with it, with this their hinges slide vertically into the new sections of the grooves 5, the side surfaces of the projections 8 with the depression 9 cams 4 are in contact with the hinges 6 upwards. move inclined. groove sections 5. The plug 2 with the product 13 moves freely upwards, and the forming cams 4 under the action of their own weight return to their original position. The manufacture of products on a given stamp is made in one operation, while making a product of a complex shape requires 3 to 5 operations using backing dies. This improves the quality of the product, is strictly adhered to in accordance with the requirements of the product GOST. Claim 1. A die for bending from piece blanks of parts of a closed loop, containing a punch with a cantilever working part and formulated jaws mounted in a housing on hinges, each of which has a groove in the shape of the working part of the punch, characterized in that The removal of parts of complex shape, profiled grooves are made in the body walls, and the hinges of the cam lobes are mounted in the said grooves. 2. A stamp according to claim 1, characterized in that recesses and protrusions corresponding to them are made on one of the inner walls and on the surfaces of the cams facing it. Sources of information taken into account in the examination 1. Smirnov-.Aleev, GA Cold stamping in instrument making. ML, Mashgiz, 1963, p. 374, FIG. 233.

2. Romanovsky V.P. Handbook of cold stamping. L., Mechanical Engineering, 1971, p. 96, rice, 77-2.