SU963612A1

SU963612A1 - Apparatus for lateral corrugation of strip material

Info

Publication number: SU963612A1
Application number: SU813266347A
Authority: SU
Inventors: Самуил Хаимович Беленький; Евгений Степанович Сизов; Яков Григорьевич Эстулин
Original assignee: Предприятие П/Я М-5671
Priority date: 1981-03-30
Filing date: 1981-03-30
Publication date: 1982-10-07

Description

Изобретение относитс к обработке металлов давлением, а точнее к листовой штамповке, обеспечивающей изго- товление гофрированных панелей из полосового материала, широко примен е мых в качестве гофрированных пластин теплообменников,- трансформаторов и других аналогичных конструкций.The invention relates to the processing of metals by pressure, and more specifically to sheet punching, which provides for the manufacture of corrugated panels of strip material, widely used as corrugated plates of heat exchangers, transformers and other similar structures.

Известно устройство дл поперечнаго гофрировани полосового материала, содержащее основание и установленные на нем с возможностью продольного перемещени два зажима, симметрично расположенный между ними гибочный пуансон , установленный с возможностью осевого перемещени перпендикул рно направлению перемещени зажимов, каждый из которых выполнен из опорного и установленного с возможностью перемещени относительно него параллельно направлению перемещени гибочного пуансона прижимного элемента, и приводы их перемещений 1.A device for transverse corrugation of a strip material is known, comprising a base and two clamps mounted on it with the possibility of longitudinal movement, symmetrically interposed between them a bending punch mounted with the possibility of axial movement perpendicular to the direction of movement of the clamps, each of which is made of a reference and installed with the possibility of relative to it is parallel to the direction of movement of the bending punch of the clamping element, and the drives of their movements 1.

Недостатком этого устройства вл еТс , во-первых, сложность конструкции из-за наличи приводов пуансона и зажимов, которые выполнены раз дельными и требуют средства синхрониз .ации в их совместном перемещении и, во-вторых, обеспечение перемещени The disadvantage of this device is, firstly, the complexity of the design due to the presence of punch drives and clamps that are separate and require synchronization means in their joint movement and, secondly, providing movement

гибочного пуансона гидроприводом в начальной стадии гофрировани приводит к интенсивному раст жению материала в зоне гофрировани , что снижает качество и точность изготавливаемых гофрированных панелей.A bending punch with a hydraulic actuator at the initial stage of corrugation leads to intensive stretching of the material in the corrugated zone, which reduces the quality and accuracy of the manufactured corrugated panels.

Наиболее близким к изобретению решением из известных вл етс устройство дл поперечного гофрировани The closest solution to the invention is the device for transverse corrugation.

10 полосового материала, содержащее приводной гибочный пуансон и размещенные по обе стороны от него одна против другой приводные прижимные и опорные колодки, при этом последние жестко 10 strip material containing a drive bending punch and placed on either side of it one against the other drive pressure and support pads, with the latter rigidly

15 . св заны с соответствующими втулками, установленными на общей направл ющей, и кинематически св заны с гибочным пуансоном 2.15 . associated with the respective sleeves mounted on a common guide, and kinematically connected with the bending punch 2.

Однако на известном устройстве не However, on a known device

20 могут быть получены гофры с высотой, многократно превышающей шаг гофра.20 can be obtained corrugations with a height many times greater than the step of the corrugation.

Целью изобретени вл етс возмож-. ность увеличени высоты гофров.The aim of the invention is the possible. The increase in the height of the corrugations.

Дл достижени этой цели в устрой25 стве дл поперечного гофрировани по;лосового материала, содержащем приводной гибочный пуансон и размещенные по обе стороны от него одна против другой приводные прижимные и опорные To achieve this goal, in a device for transverse corrugation of; deer material containing a driven bending punch and located on both sides of it one against the other driven clamping and supporting

30 колодки, при этом последние жестко30 pads, with the last hard

св заны с соответствующими втулками, установленными на общей направл ющей и кинематически св занном гибочным пуансоном, направлшоща выполнена в виде приводного валика с правой и левой резьбой, а втулки - в виде гаек с соответствующей резьбой, гибочный пуансон св зан с опорными колодками шарнирно, а привод каждой прижимной колодки выполнен в виде силовых цилиндров, размещенных вдоль колодки и закрепленных на соответствующей опорной колодке.associated with the respective sleeves mounted on a common guide and kinematically connected by a bending punch, the guide is made in the form of a drive roller with right and left threads, and the sleeves are in the form of nuts with a corresponding thread, the bending punch is connected to the support pads hinged, and the drive of each clamping block is made in the form of power cylinders placed along the block and fixed on the corresponding support block.

Рабоча поверхность прижимной колодки , установленной со стороны выхода полосового материала, выполнена с выступами по- форме гофров, расположенными , симметрично плоскости си:ловых цилиндров на рассто нии, кратном шагу гофро.в издели ,The working surface of the pressure pad installed on the exit side of the strip material is made with protrusions in the form of corrugations located symmetrically to the plane of the bore cylinders at a distance that is a multiple of the corrugation in the product,

.На фиг.1 изображено предлагаемое устройство в конечном положении, поперечное сечение) на фиг.; г разрез А-А на фиг.1; на фиг.З - положение рычагов и колодок в начальный момент на фиг.4 - сечение Б-Б на фиг.З; на фиг.5 - разрез В-В на фиг„1; на фиг.б - гофр и буквенные обозначени его геометрических элементов.Figure 1 shows the proposed device in the final position, cross section) in Fig .; g section aa in figure 1; on fig.Z - the position of the levers and pads at the initial moment in figure 4 - section bB in fig.Z; figure 5 - section bb In Fig „1; on fig.b - corrugation and lettering of its geometric elements.

Устройство состоит из основа«и , включающего станину 1 сварной конструкции и расположенные на ней плиты 2, на К9Тбрых смонтированы два узла зажима полосового материала 3 и при ..воды их перемещени .The device consists of a base and, including the base 1 of the welded structure and the plates 2 located on it, on K9Tbryh there are two clamping units for the strip material 3 and the movement of their movement.

Узлы зажима, состо щие из опорных колодок 4 и 5 и прижимных колодок б и 7 установлены с возможностью встречно-возвратного перемещени вдоль направлени поДачи полосового материала 3, указанного стрелкой Г, по направл ющим пластинам 8.Clamping assemblies consisting of support blocks 4 and 5 and clamping blocks B and 7 are installed with the possibility of counter-return movement along the direction of transmission of the strip material 3 indicated by arrow G along guide plates 8.

На рабочей поверхности прижимной колодки 7 выполнены выступы 9, расположенные симметрично относительно оси привода на рассто нии, кратном шагу гофра.On the working surface of the pressure pad 7, protrusions 9 are made, located symmetrically with respect to the drive axis at a distance that is a multiple of the corrugation step.

Опорные колодки 4 и 5 установлены н-а винте 10 с правой и левой трапецеидальной резьбой, опирающимис на подшипниковые опоры 11 и.12 качени .The support blocks 4 and 5 are mounted on a screw 10 with a right and left trapezoidal thread, supported on the bearings 11 and 12 rolling.

Снизу в каждой из опорных колодок 4 и 5 выполнен паз, в который на посадке входит соответствующий выступ корпуса. 13, Б котором смонтирована гайка 14 с нарезанной трапецеидальКой резьбой.Bottom in each of the support pads 4 and 5 is made a groove, which at the landing includes the corresponding ledge of the body. 13, with which the nut 14 is mounted with a cut keystone thread.

Выборка люфта в резьбе производитс с помощью гайки 15, котора имеет- возможность перемещатьс вдоль реи винта 10 относительно шпонки 16 закрепленной на гайке 15 путем зат жки ее другой резьбовой гайкой 17.The backlash in the thread is sampled by means of a nut 15, which has the ability to move along the screw 10 relative to the key 16 fixed on the nut 15 by tightening it with another nut 17.

Корпус 13 гайки 14 прикреплен к опорным колодкам 4 и 5 болтами. Бинт 10 св зан через фрикционную муфту 18 с черв чным редуктором и электродвигателем привода (не. показаны).The housing 13 of the nut 14 is attached to the support blocks 4 and 5 bolts. The bandage 10 is connected through a friction clutch 18 to a worm gearbox and a drive electric motor (not shown).

Прижимные колодки 6 и 7 скреплены со штоками 19 гидроцилиндров 20, жестко закрепленных на силовых рамах 21 и 22, которые в свою очередь жестко св заны соответственно с опорными колодками 4 и 5. Прижимные колодки б и 7 установлены на колонках 23, закрепленных в классных отверсти х опорных колодок 4 и 5.Clamping pads 6 and 7 are fastened to the rods of 19 hydraulic cylinders 20, rigidly mounted on power frames 21 and 22, which in turn are rigidly connected respectively to support blocks 4 and 5. Clamping shoes B and 7 are mounted on columns 23 fixed in cool holes x support blocks 4 and 5.

Между зажимами симг етрично им расположен гибочный пуансон 24 с колонками 25, установленными в направл ющих втулках 26, запрессованных в стаканах 27. Направл ющие колонки 25 креп тс к пуансону 24 призонными болтами 28. Стаканы 27 сварены с промежуточными стенками 29 и 30, с перегородками 31, с ребрами 32 и другими элементами жесткости.Between the clamps of the simg, it bends a punch 24 with columns 25 installed in guide sleeves 26 pressed into the cups 27. The guide columns 25 are fixed to the punch 24 with tight fitting bolts 28. The cups 27 are welded with intermediate walls 29 and 30 with partitions 31, with ribs 32 and other stiffeners.

Эта сварна конструкци привариваетс изнутри к стенкам станины 1, образу достаточно жесткую конструкцию . По оси симметрии гибочного пуансона 24, расположенной по его ширине , выполнено продолговатое отверстие , через которое проходит винт 10.This welded structure is welded from the inside to the walls of the bed 1, forming a sufficiently rigid structure. On the axis of symmetry of the bending punch 24 located along its width, an oblong hole is made through which the screw 10 passes.

Рабоча часть гибочного пуансона 24 тонка , а нерабоча утолщенна .The working part of the bending punch 24 is thin, and the non-working is thickened.

Гибочный пуансон 24 св зан с опорными колодками 4 и 5 с помощью рычагов 33 и 34, шарнирно св занных с помощью пальцев 35-37, закрепленных на кронштейнах 38 и 39. Пальцы 35 установлены во втулке 40 и снабжены компенсаторной шайбой 41, пальцы 36 установлены во втулках 42 и снабжены компенсаторной шайбой 43, пальцы 37 установлены во втулках 44 и 45 и снабжены шайбой 46.The bending punch 24 is connected to the support pads 4 and 5 by means of levers 33 and 34 pivotally connected with fingers 35-37 fixed on brackets 38 and 39. Fingers 35 are mounted in sleeve 40 and are equipped with a compensatory washer 41, fingers 36 are mounted in the sleeves 42 and equipped with a compensatory washer 43, the fingers 37 are installed in the sleeves 44 and 45 and are equipped with a washer 46.

Claims

The washer 46 attached to the finger 37 does not allow the lever 34 to move relative to the protruding end of the finger 37. At the same time, the necessary clearance between the washer 46 and the lever 34 is maintained by fitting the compensatory washer 43. By fitting the 1 sensor washer 41, the necessary clearance between the lever is ensured 33 and ringE. the protrusion of the finger 37. To remove the levers 33 and 34 from the dead point (see Fig.2), screws 47 are provided on both end sides of the bending punch 24, which are screwed into the brackets 48, which in turn are fixed to the frame 1. The plates 2 are provided guide grooves in which the guide pins 49 are installed, as well as guide crumbs 50 on which the bronze plates 51 are fixed. The guide crumbs are attached to the support blocks 4 and 5 with screws 52 and nuts 53. The feed of the strip material 3 is carried out using the feeder on yuchuyu at least two clamps located on two opposite sides of the strip material 3 along its width and consisting of two clamping jaws 55 and 56, with the lower jaw 55 stationary in the vertical direction, the upper 56 is installed with the possibility; vertical movement is relatively lower, and both clips are installed with the possibility of moving them to step IB in the direction of feeding the strip while clamping their position and reversing idle movement to the step when opened. A device for transverse corrugation of the strip material is as follows. Before starting work, the pressure vessels 6 and 7 should be raised to the extreme upper position with the help of hydraulic cylinders .20, and the support blocks 4 and 5 with the help of a screw drive 10 - hectares 14 should be set to the starting position, i.e. should be separated by a certain distance between them, where L is the sweep length of one tofr / R is the radius of the corrugation of the corrugation at its base. The strip material 3 is inserted through the open zazhiki of the feed mechanism between the guide bars 54 into the working area under the pressure pad 7. Using the hydraulic cylinders 20, the pressure blocks 6 and 7 lower and clamp the strip 3. Thereafter, the support blocks 4 and 5 move one towards the other and move together with the power frames 21 and 22 secured to them with clamping pads b and 7. At the same time, the flexible punch 24 connected by levers 33 and 34 moves upwards, ensuring a constant, practically without stretching, tension of the side branches of the corrugations but. Remaking the support blocks 4 and 5 one towards the other takes place before they come into contact with the working part of the bending punch by 24, which corresponds to the end of the process of forming the corrugation. With the stop of the support blocks 4 and 5, the clamps of the feed mechanism clamp the strip, after which the hydraulic cylinders 20 raise the clamping blocks 6 and 7 to the upper end position. Then the pads 4 and 5 are moved to their extreme positions, and the bending punch 24 is moved down to its lowest position. When the diluted support blocks 4 and 5 have stopped in the initial position, a command is sent to the strip feeding mechanism, and the last one with the molded 1st corrugation is fed to the right by a step equal to -R + | with "+ + 2t" using clamping mechanism clamps. .fig.6), where L, is the sweep length of one corrugation, is 2 + 2JFrcp + bj h - the distance between the Centers of the radii R, measured from the height of the corrugation; R is the radius of rounding of the corrugation at its base and apex; GSR is the radius of rounding of the corrugation at its base and apex, measured along the middle line of the thickness of the strip material. a is the width of the inner part of the hof, t is the thickness of the strip material b is the distance between the centers of the radii R, measured along the width of the corrugation. After that, the hydraulic cylinders 20 from the filed command lower the clamping pads 6 and 7 down and clamp the strip 3. At the same time, the previously formed 1st corrugation enters the specially provided groove of the clamping block 7. Next, the clamps of the strip feeding mechanism open, move to the left and the shirring process is repeated . Due to the fact that the drives of movement of the punch and the elements of the IM are synchronized with each other, the process of forming the corrugation takes place practically under constant tension of the branches of the strip material section sandwiched between the pads. This tension makes it possible to maintain a predetermined initial length of this section of the strip material, determined by the position of the clamping pads in the initial state, and chosen equal to the sweep length of the formed corrugation. Thus, the resulting corrugations will have constant geometrical dimensions, practically thinning of the strip material, will be eliminated, which will significantly increase: - the quality of the manufactured parts. These qualities are most effective for corrugated panels, the height of the corrugations of which reaches the order of 100-120 mm. The device allows to reduce energy consumption due to the possibility of using a relatively low power of the electric motor driving the movement of the clamps, due to the design of the clamps, in which the clamping force of the strip material closes inside itself. Taking into account the need to manufacture corrugated panels at one of the factories of the electrical industry up to 10 thousand units per year, the economic effect from using the device in only one factory will be up to 20 thousand rubles. in year. Claim 1. Device for transverse corrugation of strip material containing a drive bending punch and placed on both sides of it one against the other drive pressure and support pads, the latter being rigidly connected to the corresponding bushings mounted on a common guide and kinematically connected are made with a bending punch, that is, in order to be able to increase the height of the corrugations, the Guide is made in the form (drive roller with right and left thread, and the sleeves - in the form of nuts with etstvuyuschey threaded mandrel is bonded to the support pads pivotally and the drive of each clamping pad is in the form of power cylinders, pads arranged along and fixed to the corresponding support block,

2. The device according to claim 1, about the t d and so that the working surface of the pressure pad installed on the outlet side of the material is made with protrusions in the form of corrugations of the product, arranged symmetrically through the axes of the power cylinders plane, at a distance that is a multiple of the corrugations of the product.

Sources of information taken into account in the examination

1. The patent of France 205.7236, cl. B 21 D 13/00, published 26.04.71.

2. For Japan I 53-46190,

cl. B 21 D 13/00, 12.12.78 (prototype).

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