SU1007788A1

SU1007788A1 - Multiimpression die for punching, undercutting successive bending and cutting-off

Info

Publication number: SU1007788A1
Application number: SU813286271A
Authority: SU
Inventors: Михаил Шевелевич Левейкин
Original assignee: Рижский Ордена Трудового Красного Знамени Электроламповый Завод Им.50-Летия Ссср
Priority date: 1981-05-11
Filing date: 1981-05-11
Publication date: 1983-03-30

Abstract

МНОГОПОЗИЦИОННЫЙ ШТАМП ДЛЯ ПРОБИВКИ, НАДРЕЗКИ, ПОСЛЕДОВАТЕЛЬНОЙ ГИБКИ И ОТРЕЗКИ, содержащий подвижную плиту, несущую режущие пуансоны и пуансон-матрицы, а также неподвижную плиту, на которой установлены режуща матрица, гибочные «пуансоны и механизм подачи ленты, о т л и чающийс тем, что, с целью повышени производительности за счет автоматизации съема готовой, детали и повышени стойкости штампа, штгилп снабжен расположенными на позиции окончательной гибки механизмом съема готовой детали, кинематически св занным с подвижной плитой и узлами догибки и регулировки зазора между пуансон-матрицами и пуансонЬм окончательной гибки, причемпоследний установлен консольно и снабжен механизмом повышени его жесткости. (ЛMultiposition dies for punching, NADREZKI, bending sequence and a segment comprising a movable plate carrying the cutting punches and punch-matrix as well as the fixed plate, on which the cutting matrix, bending "punches and feeder belt of Whitlock and chayuschiys in that, in order to increase productivity by automating the removal of the finished part and increasing the durability of the punch, the stolp is equipped with the finished part removal mechanism located at the position of the final kinematically associated with the moving part Ita and nodes dogibki and gap adjustment between the punch-matrix and puansonm final bending prichemposledny mounted cantilevered and provided with a mechanism for increasing its rigidity. (L

Description

Изобретение касается обработки металлов давлением и относится к штамповой оснастке.The invention relates to the processing of metals by pressure and relates to die tooling.

Известен штамп для гибки деталей, содержащий подвижную и неподвижную плиты с установленными на них режущими и формообразующими пуансонами и матрицами f1] .A known stamp for bending parts containing a movable and fixed plate with mounted on them cutting and forming punches and dies f1].

Недостатком штампа является сложность его конструкции, обусловленная сложностью конструкции матрицы для гибки. Кроме того, в штампе не предусмотрено выполнение проколочных . операций, что приводит к тому, что эти операции выполняют на отдельных штампах.The disadvantage of the stamp is the complexity of its design, due to the complexity of the design of the matrix for bending. In addition, the stamp does not provide for puncture. operations, which leads to the fact that these operations are performed on separate stamps.

Наиболее близким к предлагаемому по технической сущности и достигаемому результату является многопозиционный штамп для пробивки, надрезки, последовательной гибки и отрезки, содержащий подвижную плиту,' несущую режущие пуансоны и пуансонматрицы, а .также неподвижную плиту, на которой установлены режущая матрица, гибочные пуансоны и механизм подачи ленты f2j .The closest to the proposed technical essence and the achieved result is a multi-position die for punching, notching, sequential bending and cutting, containing a movable plate carrying the cutting punches and punches, as well as a fixed plate on which the cutting matrix, bending punches and mechanism are mounted feed tape f2j.

Недостатком известного штампа . является низкая его производительность, обусловленная тем, что съем готовой.детали с гибочного пуансона . производится вручную.The disadvantage of the known stamp. its low productivity is due to the fact that I will eat the finished one. Details from the bending punch. made by hand.

Другой недостаток штампа состоит в низкой стойкости пуансона окончательной гибки, снижающей стойкость всего штампа в целом.Another disadvantage of the stamp is the low resistance of the punch to the final bending, which reduces the resistance of the entire stamp.

Цель изобретения — повышение производительности штампа за счет автоматизации съема готовой детали и повышения стойкости штампа.The purpose of the invention is to increase the productivity of the stamp by automating the removal of the finished part and increasing the durability of the stamp.

5. Указанная цель достигается тем, что многопозиционный! штамп для пробивки, надрезки, последовательной’ гибки и отрезки, содержащий подвижную плиту, несущую режущие пуансоны 10 и пуансон-матрицы, а также неподвижную плиту, на которой установлены режущая матрица, гибочные пуансоны . и механизм подачи ленты, снабжен расположенным на позиции окончатель15 ной гибки механизмом съема готовой •детали, кинематически связанным с подвижной лентой и узлами догибки и регулировки зазора между пуансонматрицами и пуансоном окончательной 2Q гибки, причем последний установлен консольно и снабжен механизмом повышения его жесткости.5. The specified goal is achieved by the fact that multi-position! stamp for punching, notching, sequential ’bending and cutting, containing a movable plate bearing the cutting punches 10 and the die punch, as well as a fixed plate on which the cutting matrix, bending punches are mounted. and the tape feed mechanism, equipped with a mechanism for removing the finished part located at the position of the final bending, kinematically connected with the movable belt and the knots for bending and adjusting the gap between the punches and the final 2Q bending punch, the latter being mounted cantilever and equipped with a mechanism for increasing its rigidity.

Механизм съема готовой детали Может быть выполнен в виде связанно25 го с неподвижной плитой посредством роворотного вала и подпружиненного к ней рычага съема, имеющего П-образный рабочий конец, охватывающий пуансон окончательной· гибки, и кинематически связанного с подвижной плитой посредством кулачка, жестко закрепленного на поворотном валу, и взаимодействующего с кулачком двуплечего рычага, шарнирно установленно • го на подвижной плите и подпружинен35 ноги к ней.The mechanism for removing the finished part Can be made in the form of a detachment connected to the fixed plate by means of a rotary shaft and a pull-out lever spring-loaded to it, having a U-shaped working end, covering the final bending punch, and kinematically connected to the movable plate by means of a cam rigidly fixed to the rotary shaft, and the two shoulders of the lever interacting with the cam, pivotally mounted on the movable plate and spring 35 feet to it.

Механизм повышения жесткости пуансона окончательной гибки может быть выполнен в виде связанного с неподвижной плитой посредством индивидуального поворотного вала и подпружиненного к ней рычага жесткости, взаимодействующего с консольным концом пуансона и кинематически связанного с подвижной плитой посредством шарнирно закрепленного на ней рычага и взаимодействующего с последним кулачка, жестко закрепленного на поворотном валу рычага жесткости.The mechanism for increasing the rigidity of the punch of the final bending can be made in the form of a stiffener connected to the fixed plate by means of an individual rotary shaft and connected to the cantilever end of the punch and kinematically connected to the movable plate by the pivotally mounted lever and interacting with the last cam fixed on the rotary shaft of the stiffness lever.

Узел догибки может быть выполнен в виде шарнирно установленных в пуансон-матрицах окончательной гибки подпружиненных рычагов и жестко закрепленных на неподвижной плите с возможностью взаимодействия с рычагами клиньев.The buckling unit can be made in the form of spring-loaded levers pivotally mounted in the punch matrices for final bending and rigidly fixed to a fixed plate with the possibility of interaction with wedge levers.

Кроме того, узел регулировки зазора между пуансон-матрицами и пуансоном окончательной гибки выполнен в виде установленных на подвижной плите Микрометрических винтов, взаимодействующих свойми торцами с боковыми поверхностями пуансон-матриц.In addition, the knot for adjusting the gap between the punch dies and the final bending punch is made in the form of Micrometer screws mounted on the movable plate, interacting with their ends with the side surfaces of the punch dies.

На фиг. 1 изображен штамп, общий вид; на фиг. 2 — разрез А-А на фиг. 1; на фиг. 3 — разрез Б-Б на фиг. 1; на фиг. 4 — разрез В-В на фиг. 1; на фиг’· 5 — вид Г на фиг. 3;на фиг. 6 — разрез Е-Е на фиг.З; на фиг. 7 —вид Д на фиг, 3; на фиг. 8 —вид Ж на фиг. 6; на фиг. 9 — разрез И-И на фиг. 6; на фиг.10 — схема обработки детали и пооперационные эскизы изделия.In FIG. 1 shows a stamp, general view; in FIG. 2 is a section AA in FIG. 1; in FIG. 3 - section BB in FIG. 1; in FIG. 4 is a section BB of FIG. 1; in FIG. 5 a view of FIG. 3; in FIG. 6 is a section EE in FIG. 3; in FIG. 7 — view D in FIG. 3; in FIG. 8 — view G in FIG. 6; in FIG. 9 - section II in FIG. 6; figure 10 is a diagram of the processing of parts and operational sketches of the product.

Штамп содержит подвижную плиту 1 с закрепленный на ней через прокладку 2 пуансонодержателем 3, несущим пробивные, отрезные и надрезные пуансоны 4, закрепленные на плите 1 винтами⁷ 5 пуансон-матрицы 6 и 7 первой и второй (окончательной)гибки и винтом 8, проходящим через планку 9, подпружиненный пружиной 10 прижим 11, неподвижную плиту 12 с установленными на ней режущей матрицей 13 с направляюще-съемной плитой 14, пуансоном 15 первой гибки, консольно закрепленным винтами 16, пуансоном 17 второй (окончательной) гибки и механизмом 18 подачи ленты, механизм повышения жесткости пуансона 17 окончательной гибки, выполненный-в виде рычага 19 жесткости пуансона 17, закрепленного посредством шпильки 20 с возможностью взаимодействия с консольным концом пуансона 17 на смонтированном в плите 12 поворотном валу 21, несущем кулачок -22, и установленного с возможностью взаимодействия с последним подпружиненного рычага 23, установленного посредством кронштейна 24 на плите 1, узел фиксации положения рычага 19 смонтированный на ступице 25 рычага и состоящий из фиксирующего винта 26, стопорящегося гайкой 27, и шпильки 28, к которой подпружинен пружиной 29 рычаг 19, механизм съема готовой детали, выполненный в виде расположенного на рабочей позиции второй (окончательной) гибки рычага 30 съема с П-образным рабочим концом, охватывающим пуансон 17. и закрепленного посредством шпильки 31 на смонтированном в плите 12 поворотном валу 32, несущем кулачок 33, а также установленного с возможностью взаимодействия с последним подпружиненного пружинами 34 двуплечего рычага 35, установленного посредством кронштейна 36 с осью 37, жестко закрепленного болтами 38 на плите 1, смонтированный на другом конце вала 3 2 узел фиксации положения, рычага 30, состоящий из рычага 39, закрепленного посредством шпонки 40. на валу 32, пружин 41 и. винта 42, стопорящегося гайкой 43, узел догибки, выполненный в виде подпружиненных пружинами 44 рычагов 45, шарнирно установленных на осях 46 в пуансонматрицах 7, жестко закрепленных на плите 12 с возможностью взаимодействия с рычагами 45 клиньев 47, и штифта 48 для ограничения· обратного хода рычагов 45, и узел регулировки задора между пуансон-матрицами 7 и пуансоном 17, выполненный в виде установленных в пуансонодержателе 3 микрометрических винтов 49, взаимодействующих своими торцами с*боковыми поверхностями пуансон-матриц 7.The stamp contains a movable plate 1 with a punch holder 3 fixed on it through a gasket 2, carrying punched, detachable and notched punches 4, fixed on the plate 1 with screws ⁷ 5 of the die 6 and 7 of the first and second (final) bending and screw 8 passing through strap 9, spring-loaded clip 10, clamp 11, fixed plate 12 with cutting matrix 13 mounted thereon, guide-removable plate 14, first bending punch 15, cantilevered screws 16, second (final) bending punch 17 and tape feed mechanism 18, mechanism pov increase the rigidity of the punch 17 of the final bending, made in the form of a lever 19 of the rigidity of the punch 17, mounted by means of a stud 20 with the possibility of interaction with the cantilever end of the punch 17 mounted on the rotary plate 12 of the rotary shaft 21, bearing the cam -22, and installed with the possibility of interaction with the latter a spring-loaded lever 23, mounted by means of an arm 24 on the plate 1, a node for fixing the position of the lever 19 mounted on the hub 25 of the lever and consisting of a fixing screw 26, locked nut 27, and studs 28, which is spring-loaded with spring 29, lever 19, a mechanism for removing the finished part, made in the form of a second (final) bending lever 30 for removal with a U-shaped working end spanning the punch 17. and fixed by means of a pin 31 on a rotary shaft mounted in the plate 12 32, bearing the cam 33, and also installed with the possibility of interaction with the last spring-loaded springs 34 of the two shoulders of the lever 35, mounted by means of an arm 36 with an axis 37, rigidly fixed by bolts 38 on the plate 1, is mounted th at the other end of the shaft 2 March fixation assembly position, the lever 30 consisting of a lever 39 fixed by a key 40 on the shaft 32, and springs 41. a screw 42 locked by a nut 43, a folding unit made in the form of spring levers 44 of the levers 45 pivotally mounted on the axles 46 in the punches 7, rigidly mounted on the plate 12 with the possibility of interaction with the levers 45 of the wedges 47, and a pin 48 to limit the reverse levers 45, and a hub for adjusting the enthusiasm between the punch dies 7 and the punch 17, made in the form of micrometer screws 49 installed in the punch holder 3, interacting at their ends with the * side surfaces of the punch dies 7.

Штамп работает следующим образом. Верхняя часть штампа (фиг. 1),. состоящая из плиты 1, прокладки 2, пуансонодержателя 3, пуансонов 4 опускается вниз, а механизм 18 подачи ленты 50 заканчивает перемещение ленты 50. Пуансоны 4, взаимодействуя с матрицей 13, производят обработку ленты 50, прокалывают, надрезают ее, а прижим 11 (фиг. 2) с помощью пружин 10 прижимает ее к пуансону 15 первой гибкии к пуансону 17 вто-рой гибки. Пуансон-матрицы 6 первой гибки, своими торцовыми кромками взаимодействуя с торцовыми кромками матрицы 13, надрезают отгибаемую часть ленты 50, а внутренними гибоч·? ными кромками огибают ее вокруг гибочных кромок пуансона 15 первой гибки - получается полуфабрикат 51. Пуансон-матрицы 7 (см фиг. 3) своими торцовыми кромками надрезают отгибаемую часть ленты 50, а внутренними кромками огибают ее вокруг пуансона 17 - получается готовое изделие 52. Регулировка зазора между гибочными кромками пуансона 17 и пуансона-матрицы 7 осуществляется узлом регулировки зазора, который торцом регулировочного винта 49 перемещает гибочные кромки пуансон-матрицы 7 непосредственно на рабочем месте на прессе, не снимая штампа.The stamp works as follows. The upper part of the stamp (Fig. 1). consisting of plate 1, gasket 2, punch holder 3, punches 4 is lowered down, and the tape feed mechanism 18 finishes moving the tape 50. The punches 4, interacting with the matrix 13, process the tape 50, puncture, cut it, and press 11 (Fig. . 2) using springs 10 presses it to the punch 15 of the first bending and to the punch 17 of the second bending. The punch-matrix 6 of the first bending, interacting with the end edges of the matrix 13 with its end edges, cut the bending part of the tape 50, and the internal bending ·? bend around it around the bending edges of the punch 15 of the first bending - you get a semi-finished product 51. Punch-matrix 7 (see Fig. 3) cut the bending part of the tape 50 with its end edges, and bend it around the punch 17 with its inner edges - you get the finished product 52. Adjustment the gap between the bending edges of the punch 17 and the punch-matrix 7 is carried out by the adjustment unit of the gap, which the end of the adjusting screw 49 moves the bending edges of the punch-matrix 7 directly at the workplace on the press, without removing the stamp.

В конце рабочего хода рычаги 45, взаимодействуя с клиньями 47, поворачиваются на угол, равный углу пружинной деформации, догибая изделие 52 вокруг гибочных кромок пуансона 17 второй гибки, а при ходе вверх под воздействием пружины 44 отходят в первоначальное положение, упираясь в штифты 48. Величина угла пружинной деформации устанавливается при получении первых.изделий 52, й перемещением клиньев 47 изделие 5'2 доводится до требуемых размеров.At the end of the stroke, the levers 45, interacting with the wedges 47, are rotated by an angle equal to the angle of the spring deformation, bending the product 52 around the bending edges of the punch 17 of the second bending, and when moving upward, under the influence of the spring 44 they retreat to the original position, resting against the pins 48. The magnitude of the angle of spring deformation is established upon receipt of the first. Products 52, and by moving wedges 47, the product 5'2 is brought to the required dimensions.

Механизм съема (фиг. 5-7} находится в исходном положении, рабочая часть рычага 30 съема находится в поднутренной части матрицы 13, полностью освобождая место гибки, и рычаг 30 съема охватывает пуансон 17 по периметру (фиг. 8), По мере опускания штампа рычаг 35 (фиг. 5), соприкасаясь с кулачком 33, поворачивается на оси 37 и после прохода кулачка 33 под действием пружин 34 возвращается в исходное положение, которое определяется внутренним торцом кронштейна 36.The removal mechanism (Fig. 5-7} is in the initial position, the working part of the removal lever 30 is located in the undercut part of the matrix 13, completely freeing the bending place, and the removal lever 30 covers the punch 17 around the perimeter (Fig. 8). As the stamp is lowered the lever 35 (Fig. 5), in contact with the cam 33, rotates on the axis 37 and after the passage of the cam 33 under the action of the springs 34 returns to its original position, which is determined by the inner end of the bracket 36.

Рычаг 31 жесткости (фиг. 6,5 и 9) во время хода вниз, т.е. во/время . приложения усилий гибки, находится в исходном положении и верхний торец его подпирает пуансон 17', представляющий собой'нежесткую консольную конструкцию. Рычаг 31 жесткости превращает пуансон 17 в жесткую балку на двух опорах. Рычаг 23, ударяясь о кулачок 22, а в конце хода . выйдя из контакта с кулачком 22, поворачивается и под воздействием пружин 29 приходит в исходное положение.The stiffness lever 31 (FIGS. 6.5 and 9) during the down stroke, i.e. during . the application of effort is flexible, it is in the initial position and its upper end is supported by the punch 17 ′, which is a “non-rigid cantilever structure. The stiffness lever 31 turns the punch 17 into a rigid beam with two supports. Lever 23, hitting the cam 22, and at the end of the stroke. coming out of contact with the cam 22, turns and under the influence of the springs 29 comes into its original position.

При ходе вверх рычаги 45 узла догибки (фиг. 4), выходя из контакта с клиньями 47, под воздействием пружин 44 отходят вправо до упорных штифтов 48, полностью выходя из рабочей зоны, т.е. из зоны контакта рычагов 45 с изделием 52. Пуансон матрицы 6 и 7 (фиг. 2 и 3) и прижим 11 отходят от изделия 53, освобождая его. Рычаг 23 механизма жесткости (фиг. 5,6, 1 и 9) входит в контакт с кулачком 22, поворачивает его, вследствие чего поворачиваются вал 21 и рычаг 31 жёсткости, который полностью освобождает пуансон 17 и зону выхода изделия.. Рычаг 35 механизма съема входит в контакт с кулачком 33, поворачивает его, вследствие чего поворачиваются вал 32 и рычаг 30 съема, который, выходя из поднутренной части матрицы 13, упи-* рается в торец изделия 52, сбрасывает его с пуансона.17, т.е. со штампа.During the upward movement, the levers 45 of the folding unit (Fig. 4), coming out of contact with the wedges 47, under the influence of the springs 44 go to the right to the stop pins 48, completely leaving the working area, i.e. from the contact zone of the levers 45 with the product 52. The die punch 6 and 7 (Fig. 2 and 3) and the clamp 11 depart from the product 53, freeing it. The lever 23 of the stiffening mechanism (Figs. 5,6, 1 and 9) comes into contact with the cam 22, rotates it, as a result of which the shaft 21 and the stiffness lever 31 are rotated, which completely releases the punch 17 and the exit zone of the product .. Lever 35 of the removal mechanism makes contact with the cam 33, rotates it, as a result of which the shaft 32 and the release lever 30 are rotated, which, coming out of the undercut part of the matrix 13, rests on the end face of the product 52, discards it from the punch.17, i.e. with a stamp.

В это время рычаг 35 механизма съема (фиг. 5-7), выйдя из зоны контакта с кулачком 33, под действием пружин 34 приходит в исходное ‘•положение, а освобожденные кулачок 33, вал 32, рычаг 30 съема под действием пружин 41, рычага 39 и упорного винта 4 2 возвращаются в ис^од- ц, ное фиксированное положение. После этого рычаг 35 механизма жесткости (фиг. 5, 6, 9) освобождает кулачок 33, выходит из контакта с ним, и кулачок 33, вал 21 и рычаг 19 жесткости под действием пружин 29, кулачка 25 и винта 26 возвращаются в исходное фиксируемое положение. Рычаг 35 под действием пружин. 34 также возвращается в исходное положение.At this time, the lever 35 of the removal mechanism (Fig. 5-7), having left the contact zone with the cam 33, comes to its original position under the action of the springs 34, and the released cam 33, the shaft 32, the removal lever 30 under the action of the springs 41, the lever 39 and the stop screw 4 2 are returned to their original, fixed position. After that, the lever 35 of the stiffness mechanism (Fig. 5, 6, 9) releases the cam 33, comes out of contact with it, and the cam 33, the shaft 21 and the stiffness lever 19 under the action of the springs 29, the cam 25 and the screw 26 return to their original fixed position . Lever 35 under the action of springs. 34 also returns to its original position.

Механизм 18 подачи подает ленту 50, и затем при дальнейших ходах цикл повторяется.The feed mechanism 18 feeds the belt 50, and then the cycle repeats with further strokes.

Предлагаемая конструкция многопозиционного штампа автоматизирует процесс изготовления корпуса цоколя и повышает производительность труда за счет обработки в ленте й ликвидации операций укладки и выемки, при · этом высвобождаются двое рабочих.За счет конструктивных особенностей предлагаемого штампа получают безотходный раскрой, в результате чего экономится латунная лента. Кроме того, наличие-в конструкции штампа рычага жесткости пуансона окончательной гибки повышает стойкость штампа.The proposed design of a multi-position die automates the manufacturing process of the base housing and improves labor productivity by processing laying and dredging operations in the tape, while two workers are freed up. Due to the design features of the proposed die, non-waste cutting is obtained, as a result of which brass tape is saved. In addition, the presence in the design of the stamp of the lever stiffness of the punch of the final bending increases the resistance of the stamp.

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2. Stamp POP.1, characterized in that the mechanism for removing the finished part is made in the form of a connection with a fixed -plate by means of a rotary shaft and a removal lever spring-loaded to it, having an U-shaped working end, covering the final bending punch, and kinematically connected with a movable plate by means of a rigidly mounted on the rotary shaft of the cam and interacting with it a double shoulder arm, pivotally mounted on the movable plate and spring-loaded to it.

3. The stud according to claim 1, in connection with the fact that the mechanism for increasing the rigidity of the final bending punch is made in the form of an individual rotary shaft and a stiffness lever spring-loaded to it which interacts with the cantilever plate the end of the punch and Kinematically connected with the movable plate by means of a lever pivotally fixed on it and interacting with the last cam rigidly fixed on the rotary shaft of the lever of rigidity.

4. The stamp according to Claim 1 is also distinguished by the fact that the rebound assembly is made in the form of a hinge-set.

spring-loaded spring pins that are rigidly mounted on a fixed plate with the ability to interact with wedge levers.

5. A stamp according to claim 1, characterized in that the node for adjusting the gap between the punch-matrix and the final punch is made in the form of micrometric screws mounted on a movable plate and interacting with their ends with the side surfaces of the punch-matrix.

The invention relates to the processing of metals by pressure and relates to die tooling. A known stamp for bending parts containing movable and fixed plates with cutting and shaping punches and dies 1 mounted on them. The disadvantage of the stamp is the complexity of its design, due to the complexity of the design of the matrix for bending. In addition, the stamp does not provide for the implementation of puncturing. operations, which leads to the fact that these operations are performed on separate stamps. The closest to the proposed technical essence and the achieved result is a multi-position punch for punching, notching, sequential bending and cutting, containing a movable plate, carrying cutting punches and punches for the matrix, and also a fixed plate. on which the cutting matrix, bending punches and the tape feed mechanism 2J are installed. The disadvantage of the famous stamp. its productivity is low due to the fact that the removal of the finished. The parts from the bending punch are made manually. Another disadvantage of the stamp is the low resistance of the final punch bending, reducing the resistance of the entire stamp as a whole. . The purpose of the invention is to improve the performance of the stamp by automating the removal of the finished part and increasing the durability of the stamp. This goal is achieved by having a multi-position punch for punching, notching, sequential bending and cutting, containing a movable plate, carrier cutting punches and a die-die, as well as a fixed plate on which the cutting die is mounted, bending punches. and the tape feed mechanism is provided with a finished part removal mechanism located at the position of the finished part, kinematically connected with a movable belt and pregibki assemblies and adjusting the gap between the dies and the final bend punch, the latter being mounted console and equipped with a mechanism for increasing its rigidity. The mechanism of removal of the finished part can be made in the form of connected with a fixed plate by means of a rotary shaft and a lever of removal which is spring-loaded to it, which has a U-shaped working end, which covers the final bending punch, and kinematically connected with a movable plate by means of a cam rigidly fixed on the rotary shaft, and a two-arm lever interacting with a cam, pivotally mounted on a movable plate and spring-loaded to it.

The mechanism for increasing the stiffness of the punch of the final bending can be made as connected to the fixed plate by means of an individual rotary shaft and a lever of stiffness spring-loaded to it, interacting with the cantilever end of the punch and kinematically connected to the movable plate by means of a pivotally fixed lever on it and interacting with the latter | ulachka rigidly mounted on the pivot shaft of the lever stiffness.

The dog bend assembly can be made in the form of pivotally installed in the punch-matrix of the final flexible spring-loaded lever and rigidly fixed on the fixed plate with the possibility of interaction with the levers of wedges.

In addition, the node for adjusting the gap between the punch-matrix and the punch of the final bending is made in the form of micrometric screws mounted on a movable plate and interacting with their ends with the side surfaces of the punch-matrix.

FIG. 1 shows a stamp, a general view; in fig. 2 shows section A-A in FIG. 1 in FIG. 3 shows a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. one; in fig. 5 is a view of FIG. 3; FIG. b - section EE of FIG. 3; in fig. 7 is a view of D in FIG. 3; in fig. 8-view W in FIG. b; in fig. 9 is a section view of FIG. 6; figure 10 is a diagram of the processing of parts and operational sketches of the product.

The stamp contains a movable plate 1 with fixed on it through the gasket 2 by the punch holder 3, carrying punch, cutting and notching punches 4 fixed on the plate 1 with screws-5 of the punch matrix 6 and 7 of the first and second (final) bending and screw 8 passing through through the bar 9, spring-loaded leg 10, the clamp 11, the fixed plate 12 with the cutting matrix 13 installed on it with the guide-removable plate 14, the punch 15 of the first bending, cantilever screw 16, the punch 17 of the second (final) bending and mechanism - 18 feed tape mechanism increase the stiffness of the final punch 1, flexible, made in the form of a lever 19 of the stiffness of the punch 17 fixed by means of a spindle 20 s in: interaction with the cantilever end of the punch II on a rotating shaft 21 mounted in the plate 12, supporting the cam -22, and installed interaction with the last spring-loaded lever 23 mounted by means of the bracket 24 on the plate 1, the fixing unit of the position of the lever 1 mounted on the hub 25 of the lever

19 and consisting of a fixing screw 26, a stopper with a nut 27, and a stud 28 to which the lever 29 is spring-loaded spring 19, a mechanism for removing the finished part, made in the form

located at the working position of the second (final) bend of the removal lever 30 with a U-shaped working end encompassing PoinSponse 17. and fixed by means of a pin 31 on a rotating shaft 32 mounted in the plate 12 supporting the cam 33, as well as an interoperable the last spring loaded springs 34 two shoulders

5 35 established by

bracket 36 with an axis 37, rigidly fixed with bolts 38 on the plate 1, mounted on the other end of the shaft 32 position fixing unit, lever

Q 30, consisting of a lever 39 fixed by means of a search 40. on a shaft 32, springs 41 and. screws 42, nut stopper 43, rebound assembly, made in the form of spring-loaded

5 springs 44 of levers 45 pivotally mounted on axles 46 in punch 7, rigidly mounted on plate 12 with the ability to interact with levers 45 of wedges 47, and pin 48 for limiting

the motion of the levers 45, and the adjustment unit

between the punch-die 7 and the punch 17, made in the form of 3 micrometric screws 49 installed in the punch holder, interacting with their ends with the side surfaces of the punch-matrix 7, the stamp works as follows. The upper part of the stamp (Fig. 1) ,. consisting of plate 1, gasket 2,

0 punch holder 3, punches 4

goes down, and the feed mechanism of the tape 50 finishes the movement of the tape 50. The punches 4, interacting with the die 13, process

5, the tapes 50 are pierced, incised, and the clamp 11 (FIG. 2) with the help of the springs 10 presses it against the punch 15 of the first bending and punch 17 of the second bending. Punch matrix 6 first

p bending, with their end edges interacting with the end edges of the die 13, incising the foldable part of the tape 50, and bending it around the bending edges of the punch 15 with the inner bending edges

flexible - a semi-finished product is obtained 51. A die matrix 7 (see Fig. 3) with its front edges cuts the foldable part of the tape 50, and bends it around the punch with the internal edges

0 17 - the finished product 52 is obtained. Adjustment of the gap between the bending edges of the punch 17 and the die-matrix punch 7 is made by the clearance adjustment unit, which by the end of the adjusting screw 49 moves the bending

the edges of the punch matrix 7 directly on the workplace on the press, do not remove the stamp.

At the end of the working stroke, the levers 45, interacting with the wedges 47, turn at an angle equal to the angle of the spring; deformation, preyiba product 52 around the bending edges of the punch 17 of the second are flexible, and during the upward movement under the influence of the spring 44 is retracted to its original position, abutting the pins 48. The magnitude of the spring deformation angle is set when receiving the first products 52, and by moving the wedges 47 52 is adjusted to the required dimensions.

The removal mechanism (FIGS. 5-7) is in the initial position, the working part of the removal lever 30 is in the undercut part of the die 13, completely freeing the bending position, and the removal lever 30 covers the punch 17 along the perimeter (FIG. 8). As the die is lowered the lever 35 (Fig. 5), in contact with the cam 33, rotates on the axis 37 and after the cam 33 passes through the action of the springs 34 returns to the original position, which is determined by the inner end of the bracket 36 ..

The stiffness lever 31 (Fig. 6.5 and 9 during the downward movement, i.e. during the time of application of the bending forces, is in the initial position and its upper torus is supported by the punch 17, which is a non-rigid cantilever structure. Lever 31 stiffness turns punch 17 into a rigid beam on two supports. Lever 23, hit the cam 22, and at the end of the turn. Come out of contact with the cam 22, rotates and, under the influence of springs 29, returns to its original position.

During upward movement, the levers 45 of the knot bend (Fig. 4), the exit from contact with the wedges 47, under the influence of the springs 44 retract to the right until the stop pins 48, completely exit from the working zone, i.e. from the zone of contact of the levers 45 with the product 52. Punches 6 and 7 (Fig. 2 and 3) and the clamp 11 move away from the product 53, releasing it. The lever 23 of the stiffness mechanism (Figures 5.6, 1 and 9) comes into contact with the cam 22, rotates it, as a result of which the shaft 21 and the stiffness lever 31 rotate, which completely releases the punch 17 and the exit zone of the product. The lever 35 of the removal mechanism comes in contact with the cam 33, rotates it, as a result of which the shaft 32 and the lever 30 are removed, which, coming out of the undercut part of the matrix 13, abuts against the end of the article 52, drops it from the punch 17, i.e. from the stamp.

At this time, the lever 35 of the removal mechanism (Fig. 5-7), coming out of the zone of contact with the cam 33, under the action of: the spring 34 comes to the original application, and the released cam 33, shaft 32, the lever 30 of the removal under the action of the spring 41, the lever 39 and the stop screw 42 are returned to the i fixed position. After that, the stiffness lever 35 (Figs. 5, 6, 9) releases the cam 33, comes out of contact with it, and the cam 33, the shaft 21 and the stiffness lever 19 under the action of the springs 29, the cam 25 and the screw 26 are returned to their original fixed position . The lever 35 under the action of springs. 34 also returns to its original position. 5 Feed mechanism 18 feeds the tape. 50, and then on further moves the cycle repeats.

The proposed multi-punch die design automates the process of manufacturing the base of the base P and increases labor productivity by processing in the tape and eliminating the laying and dredging operations, thereby releasing two workers. Due to the design features 5 of the proposed punch, a waste-free cutting is obtained, thereby saving brass tape. In addition, the presence in the design of the stamp of the lever of stiffness of the punch of the final bending increases the resistance of the stamp.

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