EP0049313B1 - Procédé et dispositif pour le cintrage de tôles ondulées ou profilées - Google Patents

Procédé et dispositif pour le cintrage de tôles ondulées ou profilées Download PDF

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Publication number
EP0049313B1
EP0049313B1 EP81100567A EP81100567A EP0049313B1 EP 0049313 B1 EP0049313 B1 EP 0049313B1 EP 81100567 A EP81100567 A EP 81100567A EP 81100567 A EP81100567 A EP 81100567A EP 0049313 B1 EP0049313 B1 EP 0049313B1
Authority
EP
European Patent Office
Prior art keywords
profile
planes
shaping
tool
process according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81100567A
Other languages
German (de)
English (en)
Other versions
EP0049313A2 (fr
EP0049313A3 (en
Inventor
Helmuth Schneider
Adalbert Fusshöller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vereinigte Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Priority to AT81100567T priority Critical patent/ATE8746T1/de
Publication of EP0049313A2 publication Critical patent/EP0049313A2/fr
Publication of EP0049313A3 publication Critical patent/EP0049313A3/de
Application granted granted Critical
Publication of EP0049313B1 publication Critical patent/EP0049313B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/08—Bending by altering the thickness of part of the cross-section of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/20—Bending sheet metal, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/20—Bending sheet metal, not otherwise provided for
    • B21D11/206—Curving corrugated sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments

Definitions

  • the invention relates to a method and a device for bending corrugated or profiled sheets, consisting of roof, floor and side surfaces, the side surfaces being deformed simultaneously with the edges of the roof / floor surfaces.
  • the object of the present invention is to avoid the disadvantages described and to bend a sheet metal profile with uniformly shaped side surfaces of any shape, in particular with profile heights of more than 45 mm.
  • this is achieved in that the folding of the roof / floor surface and the deformation of the side surfaces are carried out independently of a multi-part tool with a variable, adjustable pressing force.
  • the material gathering required in the bending process in the side of the profile sheet to be bent facing the bending radius is carried out in two directions in the method according to the invention:
  • bulges that are uniformly curved inwards or outwards (continuously) or bulges that are curved inwards in the roof and floor surfaces and outwards in the side surfaces (discontinuously).
  • the shape of the bulges depends on the process sequence, in such a way that continuous bulges are generated by a fitting inserted from the inside and acting in a horizontal and vertical direction, while the discontinuous bulges are achieved by simultaneously acting but opposing deformation of the roof / floor surfaces and the side surfaces will.
  • the method according to the invention can also be used to produce discontinuous curvatures in the surfaces of the trapezoidal profiles which are bulged very deeply and nevertheless have a uniform shape. This even applies to relatively soft sheet material, e.g. Aluminum in a soft condition, since the wavy surface texture is avoided by using geometrically defined tools.
  • relatively soft sheet material e.g. Aluminum in a soft condition
  • the method according to the invention allows the side surfaces to be shaped in a targeted manner and with a predetermined dimension.
  • the side surfaces can be dented continuously inwards or outwards, whereby high loads can be avoided in critical areas.
  • the method according to the invention aims to use a variable counter to the pressing pressure of the bending means in the profile interior of the sheet profile to be deformed, which leads to a defined bulge of the sheet profile due to the arrangement of the axes of rotation and the geometric design of the variable counter holder.
  • the device according to the invention for bending corrugated or profiled sheet metal solves the problem mentioned at the outset in that a buckling device engages in the profile chamber of the sheet metal profile, which consists of at least two shaped pieces that can be moved in the horizontal and vertical direction and can be pressed against the side walls of the sheet metal profile.
  • a fixed counter-holder in the lower tool is effected by two tool webs 8 arranged parallel to one another and adapted to the profile interior. These webs are also used to support Beularmen, consisting of levers 6a, b, which cause the variable counterhold.
  • the shape of the levers 6a, b is arbitrary, it only has to be chosen symmetrically to the two axes of rotation 11, 12. Furthermore, for easy movement of the levers 6a, b, the lever arms 13, 14 should be dimensioned sufficiently long, at least sufficiently long, in order to do justice to the relationship between the vertical and the horizontal sheet metal bulge.
  • a notch or depression must be incorporated in the tip 15.
  • the open levers 6a, b are shown in dashed lines in Fig. 1 a.
  • 1b shows the lower part of the device according to the invention in a top view. It can be seen that the levers 6a, b are pyramid-shaped, as a result of which the shape of the bead produced is geometrically predetermined.
  • the upper tool consists of two tool webs 9a, b, in which the outer contour of the profile is incorporated.
  • the bending arm 7 is located in the middle of these two webs 9.
  • FIG. 3 shows a sheet metal profile produced with the device according to the invention.
  • the discontinuous curvatures at the kink point of the sheet can be seen.
  • more or less sharp bends can be made.
  • the number of bending processes is not limited, so that any radius of curvature can be generated.
  • the lower and upper tools can of course also be interchanged, and profiles can also be bent in a negative or positive plane.
  • FIG. 4 shows a sheet metal profile produced with the device with continuous bulging of the side and roof floor surfaces. This profile was created by inserting the counter-holding means or shaped piece into the interior of the profile chamber 4 and pressing in the vertical direction. It can be seen that, similar to a stovepipe with a continuous rib, a soft and rounded transition zone has been created between the sheet metal profile and the bulge.
  • a discontinuous profiling can be seen in FIG. 5, the roof or bottom surface of the sheet metal profile being pressed inwards and the side surfaces being pressed outwards. In order to achieve a particularly narrow bending angle, the side surfaces have been pressed outwards in a pyramid-like manner with sharp notches.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Wire Processing (AREA)

Claims (11)

1. Procédé pour cintrer des tôles ondulées ou profilées, se composant de surfaces de sommet, de surfaces de base et de surfaces de flanc, où les surfaces de flanc sont déformées simultanément au pliage à arête vive des surfaces de sommet/base, caractérisé en ce que le pliage à arête vive des surfaces de sommet/base (1, 2) et la déformation des surfaces de flanc (3) sont effectués indépendamment par un outil en plusieurs parties exerçant une force de compression variable et réglable.
2. Procédé selon la revendication 1, caractérisé en ce que le mouvement de l'outil peut être commandé aussi bien dans une direction horizontale qu'également dans une direction verticale.
3. Procédé selon l'une des revendications précédentes, caractérisé en ce que, pendant le processus de cintrage, les surfaces de flanc (3) du profilé sont refoulées vers l'extérieur de façon continue à partir du côté intérieur de la chambre (4) du profilé.
4. Procédé selon l'une des revendications précédentes, caractérisé en ce que la force d'application contre les surfaces de flanc (3) du profilé augmente de façon continue jusqu'à la fin du renflement.
5. Procédé selon l'une des revendications précédentes, caractérisé en ce que la force d'application peut être modifiée sur la longueur du renflement dans les surfaces de flanc.
6. Procédé selon l'une des revendications précédentes, caractérisé en ce que la forme du renflement est déterminée par le processus de déplacement, essentiellement de forme circulaire, d'un outil de renflement disposé à l'intérieur de la chambre du profilé.
7. Dispositif pour cintrer des tôles ondulées ou profilées, se composant de surfaces de sommet, de surfaces de base et de surfaces de flanc, les surfaces de flanc étant déformées simultanément au pliage à arête vive des surfaces de sommet/base, pour la mise en oeuvre de procédé selon l'une des revendications précédentes, caractérisé en ce que dans la chambre (4) du profilé en tôle s'engage un dispositif de renflement qui se compose d'au moins deux pièces de formage mobiles dans une direction horizontale et dans une direction verticale et qui peuvent être appliquées contre les parois de flanc (3) du profilé en tôle.
8. Dispositif selon la revendication 7, caractérisé en ce que les pièces de formage se composent de bras de renflement (6a, 6b) se croisant à la façon de ciseaux.
9. Dispositif selon l'une des revendications 7 et 8, caractérisé en ce que le mouvement de ciseaux est commandé en fonction de l'angle de dintrage des tôles ondulées ou profilées.
10. Dispositif selon l'une des revendications 7 à 9, caractérisé en ce que les pièces de formage sont montées de façon à pouvoir tourner à l'intérieur de la chambre (4) du profilé perpendiculairement à la direction de profilage.
11. Dispositif selon l'une des revendications 7 à 10, caractérisé en ce que la longueur entre le bord de formage et les axes de rotation (11, 12) de la pièce de formage est plus grande que l'espacement entre les axes de rotation (11, 12) et la paroi latérale du profilé en tôle à renfler.
EP81100567A 1980-10-04 1981-01-27 Procédé et dispositif pour le cintrage de tôles ondulées ou profilées Expired EP0049313B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81100567T ATE8746T1 (de) 1980-10-04 1981-01-27 Verfahren und vorrichtung zum biegen von gewellten oder profilierten blechen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3037590A DE3037590C2 (de) 1980-10-04 1980-10-04 Vorrichtung zum Biegen von gewellten oder profilierten Blechen
DE3037590 1980-10-04

Publications (3)

Publication Number Publication Date
EP0049313A2 EP0049313A2 (fr) 1982-04-14
EP0049313A3 EP0049313A3 (en) 1982-05-19
EP0049313B1 true EP0049313B1 (fr) 1984-08-01

Family

ID=6113629

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100567A Expired EP0049313B1 (fr) 1980-10-04 1981-01-27 Procédé et dispositif pour le cintrage de tôles ondulées ou profilées

Country Status (3)

Country Link
EP (1) EP0049313B1 (fr)
AT (1) ATE8746T1 (fr)
DE (1) DE3037590C2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8203509A (nl) * 1982-09-09 1984-04-02 Jacobus Adrianus Theodorus Van Inrichting en werkwijze voor het buigen van golfplaten.
FR2544698B1 (fr) * 1983-04-25 1986-05-02 Technigaz Raccordement, procede de fabrication de cet element, structure de raccordement etanche realisee a partir desdits elements, et reservoir de stockage, notamment pour sel fondu, equipe de ladite structure
SE445309B (sv) * 1983-12-16 1986-06-16 Graenges Aluminium Ab Forfarande for bockning av profilerad plat samt verktyg for utforande av forfarandet
SE459481B (sv) * 1987-11-03 1989-07-10 Anita Elisabeth Mattsson Med F Metod och anordning foer bockning av korrugerad plaat
US5303572A (en) * 1992-05-07 1994-04-19 Knudson Gary Art Panel bending apparatus and method
DE102008033822B4 (de) 2008-07-19 2010-06-17 GEDIA Gebrüder Dingerkus GmbH Flachstab oder Flachprofilstab aus Metall
CN113083969B (zh) * 2021-03-17 2022-05-17 无锡云集机械有限公司 车用声电传感器测量组件的折弯装置及折弯方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017915A (en) * 1956-04-30 1962-01-23 Bethlehem Steel Corp Beam bending machine
DE1966861C3 (de) * 1968-12-31 1980-03-20 Fa. Technigaz, Paris Vorrichtung zur Fertigung eines Formteils mit wellenförmigen Dehnfalten
DE2727287C2 (de) * 1975-12-18 1983-11-03 Korsträsk Mekaniska G. Näslund, Älvsbyn Vorrichtung zum Biegen profilierter Platten
SE7811538L (sv) * 1978-11-08 1980-05-09 Groko Maskin Ab Forfarande och anordning for bockning av profilerad plat

Also Published As

Publication number Publication date
ATE8746T1 (de) 1984-08-15
EP0049313A2 (fr) 1982-04-14
DE3037590C2 (de) 1985-05-30
DE3037590A1 (de) 1982-05-13
EP0049313A3 (en) 1982-05-19

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