SU725742A1

SU725742A1 - Apparatus for bending sheet material article edges

Info

Publication number: SU725742A1
Application number: SU772521929A
Authority: SU
Inventors: Алексей Николаевич Венедиктов; Николай Иванович Полозов; Леонтий Павлович Подковенко; Сергей Сергеевич Зязин; Александр Павлович Евтушенко
Original assignee: Предприятие П/Я В-2994
Priority date: 1977-09-02
Filing date: 1977-09-02
Publication date: 1980-04-05

Description

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Изобретение относитс к обработке металловдавлением ,- в частности к устройствам дл подгибки кромок листа.The invention relates to the treatment of metals by pressure, in particular to devices for bending the edges of the sheet.

Известно устройство дл гибки кромок на листовых заготовках, содержащее поворотную колодку с селекторным вырезом и наклад,ками 1.A device for bending edges on sheet blanks is known, comprising a rotatable shoe with a selector cut-out and an overlay, which 1.

Однако известное устройство предназначено дл получени отогнутой кромки, перпендикул рной плоскости листа.However, the known device is intended to obtain a bent edge perpendicular to the plane of the sheet.

Известно устройство дл лодгибки кромок изделий из листового материала, содержащее установленные на станине прижим, сменную оправку и вращающийс гибочный инструмент в виде ролика 2.A device is known for padding the edges of articles made of sheet material, comprising a clamp, a replaceable mandrel mounted on a frame, and a rotating bending tool in the form of a roller 2.

Однако гибочный инструмент в известном устройстве предназначен дл гибки коротких кромок и дл гибки кромки по всей щйриие листа необходимо соверщить несколько гибов с перемещением листа между ними.However, the bending tool in the known device is designed for bending short edges and for bending edges along the entire width of the sheet, it is necessary to make several bends with the sheet moving between them.

Цель изобретени - повышение производительности труда за счет одновременной гибки всей кромки.The purpose of the invention is to increase labor productivity by simultaneously bending the entire edge.

Дл достижени этой цели гибочный инструмент снабжен поворотными фиксируемыми в требуемом положении эксцентриковыми подшипниковыми опорами, соединенными между собой щтангой, а привод гибочного инструмен та выполнен в виде поворотных рычагов, снабженных каждый механизмом дискретного изменени положени оси его поворота и соединенных с одной из опор.To achieve this goal, the bending tool is equipped with pivotal eccentric bearing bearings fixed in the required position, interconnected by shtanga, and the bending tool drive is made in the form of pivoting levers equipped with a discrete mechanism for changing the position of its pivot axis and connected to one of the supports.

Механизм диск;ретного изменени оси поворота выполнен в виде размещенных в ст анине вдоль рычага параллельных гидравлических цилиндров , корпуса которых установлены с возможностью перемещени в выполненных в рычаге отверсти х.The mechanism of a disk; reversible change of the axis of rotation is made in the form of parallel hydraulic cylinders placed along the lever, the bodies of which are mounted so that they can be moved in the holes in the lever.

На фиг. 1; п:оказано устройство общий вид в аксонометрии; на фиг. 2 - лева часть устройства; на фиг. 3 - разрез А-А. фиг. 2 поперечное сечение по гибочному валку; на фиг. 4 - элемент Т, рабочее положение подвижной оси.FIG. one; n: rendered the device a general view in axonometry; in fig. 2 - left part of the device; in fig. 3 - section A-A. FIG. 2 cross section along a bending roll; in fig. 4 - element T, the operating position of the movable axis.

Claims

The device for hemming the edges of products of the sheet material comprises a frame 1 on which work table 2 is installed. In the front part of the work table 2, the profiling mandrel 4 on the elastic element 3 is connected to the arms 6 by means of rotatable, fixed eccentric bearing supports 7, interconnected by a bar 8. The levers 6 are interconnected by a bar 9 and fixed to the required bend radius with the mechanism of a discrete change of the axis of rotation in the form of parallel hydraulic cylinders 10, rods And which Fixed on the bed 1. Under the cylinders 10 coaxially in the arms and posts of the bed 1 are made holes 12. The working and reverse movement of the bending roll 5 with the levers 6 is carried out by hydraulic cylinders 13. There is a roller table 15 built into the working area to feed the sheet 14. stachina 1.. Fixing the position of the sheet 14 to the required amount of bending edge is realized by movable stops 16 located on the console 17 of the levers 6. The sheet 14 is fixed on the table 2 by the cross member 18 using wedge clamps 19, activated by hydraulic cylinders 20 and positioned on the brackets mounted on the left and right posts of the bed 1. For raising and lowering the traverse 1B at the moment of feeding the sheet blank 14 and its from the table 2 serve hydraulic cylinders 21 fixed on separate brackets also on the station ykah frame 1. Setting the initial position of the levers 6 is produced movable stops 22 and stops 23. The stationary fixing the eccentric bearings 7 relative to the axes of levers 6 eotvy a retainer 24. The apparatus rabotakt follows. On the work table 2 on the roller table 15 serves-sheet blank 14 until it stops 16, which is adjusted depending on the size of the bendable edge. The workpiece 14 is pressed to table 2 using the crosshead 18, which includes power cylinders 20, the rods of which are tsug wedge clamps 19. Then rotate the eccentric bearing supports 7 and adjust the bending roller 5 to the required thickness of the sheet blank 14, after which the bearing supports 7 are fixed against rotation 6 relative to the levers 6 by retainers 24. The pair of coaxial movable axes (cylinders 10) is inserted in accordance with The driving holes 12 of the levers 6 and the frame 1 are adjusted to the desired bending radius corresponding to the radius of the main mandrel mounted on the table 4. The power hydraulic cylinders 13 are turned on, the TOPbie rotates the levers 6 with the bending roll 5 around the axes (shield cylinders 10), while the bending roll 5 bends the sheet blank 14 on the profiling mandrel 4 on request. my radius. Upon termination of the operation of the hydraulic cylinders 13 by the hydraulic cylinders 20, the output wedge 19, release the yoke 18 and lift it with the hydraulic cylinders 21, freeing the sheet blank 14, which is removed from the table. The return stroke of the hydraulic cylinders 13 returns the levers 6 with the bending roll 5 to the initial position until the stops 22 and 24 are installed in the frame and on the table. The application of the proposed device will allow to mechanize the process of hemming the edges of the shells; for chemical apparatuses manufactured mainly from thick plate material, to improve the quality of products and the semi-economic effect when implemented at a mechanical repair plant in the amount of 15 thousand. rub. Claim 1. A device for hemming the edges of products made of sheet material, containing a clamp, an interchangeable mandrel mounted on a frame, and a rotating bending tool, which is characterized in that, in order to increase productivity by simultaneously bending the entire edge, the bending tool is provided with rotary, fixed eccentric bearing supports interconnected by a bar in the required position, and the drive of the bending tool is made in the form of pivoting levers equipped with each disk mechanism retraction of the position of the axis of its rotation and connected to one of the supports. 2. The device according to claim 1, that is, that the mechanism of the discrete change of the axis. Turn is made in the form of parallel hydraulic cylinders mounted in the frame along the lever, the itoTOpbix housings are mounted with the ability to move in the holes in the lever x Sources of information taken into account during the examination 1. USSR author's certificate No. 498065, cl. B 21 D 5/02, 1973.

2. USSR author's certificate number 303127, cl. B 21 D 5/04, 19.69 (prototype). ,

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