EP1916043B1 - Machine de cintrage ou de pliage - Google Patents

Machine de cintrage ou de pliage Download PDF

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Publication number
EP1916043B1
EP1916043B1 EP07033525A EP07033525A EP1916043B1 EP 1916043 B1 EP1916043 B1 EP 1916043B1 EP 07033525 A EP07033525 A EP 07033525A EP 07033525 A EP07033525 A EP 07033525A EP 1916043 B1 EP1916043 B1 EP 1916043B1
Authority
EP
European Patent Office
Prior art keywords
bending
bench
material blank
machine according
roller
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.)
Not-in-force
Application number
EP07033525A
Other languages
German (de)
English (en)
Other versions
EP1916043A1 (fr
Inventor
Wolfgang Weil
Klaus Bassler
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.)
Weil Engineering GmbH
Original Assignee
Weil Engineering GmbH
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 Weil Engineering GmbH filed Critical Weil Engineering GmbH
Publication of EP1916043A1 publication Critical patent/EP1916043A1/fr
Application granted granted Critical
Publication of EP1916043B1 publication Critical patent/EP1916043B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
    • B21D5/146—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers one roll being covered with deformable material
    • 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
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers

Definitions

  • the invention relates to a rotary or bending machine according to the preamble of patent claim 1, by means of which at least one square or rounded and concurrently tapered hollow body or the like workpiece from a material blank is malleable, wherein the lap or bending machine at least one tapered roller and at least a counter-element, between which the material blank is deforming pressure-sensitive and of which at least the at least one counter-element has an elastic surface.
  • exhaust pipes of modern motor vehicles often have an exhaust tail, which is not only round or oval, but also increase conically expanded.
  • comparable hollow body are required, which are square, round or conical and tapered at the same time, here under a round or rounded cross-section and an oval or triovaler cross-section and under a polygonal cross-section, for example should also be understood a rectangular or polygonal cross-section.
  • Such angular or round and tapered workpieces can be produced only with considerable effort.
  • bending rolls which have a steel upper roll and a lower roll with an elastically resilient surface of polyurethane plastic, between which a sheet metal blank can be deformed simultaneously round and conical, the rounding of the workpiece by the pressing force and the diameter of the upper roll on the lower roller is regulated.
  • the bottom roller can be divided into individual, independently rotatable roller sections. Since the lower roller is designed according to many parts and complicated, and since the rollers of the known bending machines must have a correspondingly large minimum roll diameter, only large workpieces can be produced in these prior art devices.
  • the solution to this problem is in the rounding or bending machine of the type mentioned in particular that the round or bending machine designed as a bending table and the material blank supporting counter-element that the at least one roller on the bending table arranged deformable pressure and pressurized the bending table is movable in the longitudinal direction and rotatably guided about an axis of rotation and the at least one roller is movable transversely to the longitudinal direction such that the change in the relative position of the roller and the axis of rotation of the bending table caused by a rotational movement of the bending table can be compensated.
  • the rounding or bending machine has a cooperating with at least one roller counter element, which is designed as a bending table and embossing the material blank.
  • the roller can pressurize the arranged on the bending table material blank deformation.
  • the bending table is movable in the longitudinal direction and rotatably guided about an axis of rotation, while the roller is movable so that caused by a rotational movement of the bending table change in the relative position of top roller and axis of rotation of the bending table is compensated.
  • a small-format workpiece can now also be angular or round and at the same time conically shaped.
  • the taper of the roller can be compensated by rotational movements of the bending table and corresponding feed movements of the roller in the axial direction, without the need for a subdivided into separate roller sections roller. Since the rounding or bending machine according to the invention does not require such a subdivided roll, the at least one roll of the rounding or bending machine according to the invention can also have a comparatively small minimum roll diameter and accordingly form small radii.
  • the bending table can be moved and stored rotatable and yet can absorb high deformation and contact forces, it is expedient if the bending table has a first and a second, the material blank supporting table element which are rotatable relative to each other.
  • the rounding or bending machine has a roller with an unyielding and preferably steel roller surface, while the second table element has an elastically yielding support surface for the material blank.
  • the support surface is made by a plate made of elastic rubber or plastic.
  • the material blank can be fixed or fixable in its position on the bending table.
  • An embodiment according to the invention provides that fixing pins or the like fixing elements are provided for fixing or fixing the material blank, which attack with its over the bending table projecting end portion of the outline contour of the material blank and are retractable against a restoring force in the bending table.
  • the material blank is arranged in a recess of the bending table, and if the edge region of the bending table bounding the recess for fixing or fixing the material blank at least partially bears against its outer contour. In this case, the material blank can be fixed immovably and safely on the bending table when the material blank has a complementary outer contour to the recess.
  • the at least one roller and the bending table are relative to one another undeliverable. It can u. a. be varied by a different contact pressure between the roller and bending table, the radius of the deformation caused on the material blank.
  • the roller is held exchangeably in the lap or bending machine, and if the lap or bending machine is assigned at least two differently shaped rollers. It is particularly expedient if the rounding or bending machine is assigned at least two rollers of different lengths and / or at least one cylindrical and at least one conical roller. With comparatively short rolls, correspondingly small bending radii can be formed in the workpiece. While cylindrical or rounded workpieces can be formed with a straight roll, a conical roll is used to form angular or rounded and conical workpieces.
  • the versatile applicability of the rounding or bending machine according to the invention is further increased if the rounding or bending machine are assigned at least two bending tables and in particular at least two second table elements of different width, which can be mounted optionally in the rounding or bending machine.
  • a rounding or bending machine 1 is shown, which is used for deforming or bending, inter alia, also an angular or rounded and simultaneously tapered workpiece from a material blank and in particular from a metal sheet.
  • the rounding or bending machine 1 has a tapered roller 2 with an unyielding and preferably steel surface.
  • the roller 2 cooperates with a counter-element, which is designed as a material blank supporting the bending table 3.
  • the bending table 3 is deliverable in the direction of the double arrow Z1, 2 to the roller 2, that between bending table 3 and roller 2 of the - not shown here - material blank is deforming druckbeetzschlagbar.
  • the bending table 3 has an elastic surface which is configured as an elastically yielding support surface 4 for the material blank.
  • This support surface 4 is characterized by a plate of elastic rubber or plastic and in particular made of PUR plastic.
  • a small-sized workpiece can now be square or round and at the same time conically shaped if required.
  • the taper of the roller 2 can be compensated by rotational movements of the bending table 3 and corresponding feed movements of the roller 2 in the axial direction, without the need for a subdivided into separate roller sections roller. Since the rounding or bending machine shown here requires no such subdivided roller, the at least one roller 2 of the rounding or bending machine shown here can also have a comparatively small minimum roller diameter and accordingly form small radii.
  • the bending table 3 For rotating the material blank located on the bending table 3, the bending table 3 has a first table element 6 and a second table element 7, which are rotatable about the axis of rotation 5 relative to each other.
  • Drive means 8, 9 For moving the bending table 3 engages on both sides of the second table element in each case Drive means 8, 9 at.
  • the drive means 8, 9 acting on the second table element 7 and preferably designed as a coaxial drive belt can be driven or moved at different travel speeds.
  • the material blank can be fixed or fixed on the bending table 3 in its position.
  • the material blank is arranged in a recess of the bending table 3 and preferably its support surface 4, wherein the edge of the bending table 3 bounding the recess for fixing or fixing the material blank at least partially abuts against its outer contour. It is particularly advantageous if the material blank has a complementary outer contour to the recess.
  • the roller 2 is held replaceably in the lap or bending machine 1, and if the lap or bending machine has at least two differently shaped rollers 2 are assigned.
  • the rounding or bending machine 1 is expediently assigned at least two rolls of different lengths and / or at least one cylindrical roll and at least one conical roll 2. With comparatively short rollers 2 small bending radii can accordingly be formed in the workpiece. While 2 cylindrical or rounded workpieces can be formed with a straight roll, a conical roll 2 is used for forming angular or rounded and at the same time conical workpieces.
  • Fig.1 is indicated that the mounted in the form of a flying shaft roller 2 can be pivoted in the Zustellebene with its free end of the roll in the direction of the bending table 3.

Landscapes

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

Claims (14)

  1. Machine (1) de cintrage ou de pliage, au moyen de laquelle au moins un corps creux polygonal ou arrondi et en même temps se terminant coniquement, ou une pièce analogue, peut être façonné à partir d'une découpe de matériau, sachant que la machine (1) de cintrage ou de pliage présente au moins un rouleau (2) se terminant coniquement et au moins un contre-élément, entre lesquels la découpe de matériau peut être déformée en étant sollicitée en pression et parmi lesquels le au moins un contre-élément possède une surface élastique, sachant que la machine (1) de cintrage ou de pliage présente un contre-élément réalisé sous forme de table de pliage (3) et portant la découpe de matériau, et sachant que le rouleau (2) au moins unique sollicite en pression, en la déformant, la découpe de matériau disposée sur la table de pliage (3), caractérisée en ce que la table de pliage (3) est guidée en translation en direction longitudinale ainsi qu'en rotation autour d'un axe de rotation (5), et le au moins un rouleau (2) peut être déplacé transversalement à la direction longitudinale de manière à pouvoir compenser la modification de la position relative du rouleau (2) et de l'axe de rotation (5) de la table de pliage (3) qui est produite par un mouvement de rotation de la table de pliage (3).
  2. Machine selon la revendication 1, caractérisée en ce que la table de pliage (3) possède un premier élément de table (6) et un deuxième élément de table (7), portant la découpe de matériau, qui sont rotatifs l'un par rapport à l'autre.
  3. Machine selon la revendication 2, caractérisée en ce qu'un moyen d'entraînement (8, 9) agit sur deux côtés opposés du deuxième élément de table (7), et en ce que les moyens d'entraînement (8, 9) peuvent être entraînés ou déplacés à des vitesses de déplacement différentes afin de faire tourner simultanément les éléments de table (6, 7) l'un par rapport à l'autre.
  4. Machine selon la revendication 3, caractérisée en ce que des courroies d'entraînement coaxiales sont prévues comme moyens d'entraînement (8, 9), et en ce qu'une courroie d'entraînement respective agit sur un des côtés opposés du deuxième élément de table (7).
  5. Machine selon l'une des revendications 2 à 4, caractérisée en ce que le deuxième élément de table (7) possède une surface d'appui élastiquement flexible (4) pour la découpe de matériau.
  6. Machine selon la revendication 5, caractérisée en ce que la surface d'appui (4) est réalisée par une plaque élastique en matière plastique ou en caoutchouc.
  7. Machine selon l'une des revendications 1 à 6, caractérisée en ce que la découpe de matériau peut être immobilisée ou bloquée en position sur la table de pliage (3).
  8. Machine selon l'une des revendications 1 à 7, caractérisée en ce que des goupilles d'immobilisation ou des éléments d'immobilisation analogues sont prévus pour immobiliser ou bloquer la découpe de matériau, éléments qui agissent par leur région terminale, dépassant de la table de pliage (3), sur le contour périphérique de la découpe de matériau, et qui peuvent être escamotés dans la table de pliage (3) à l'encontre d'une force de rappel.
  9. Machine selon l'une des revendications 1 à 8, caractérisée en ce que la découpe de matériau est disposée dans un évidement de la table de pliage, et en ce que la région de bord de la table de pliage qui entoure l'évidement s'applique au moins par endroits contre le contour extérieur de la découpe de matériau afin d'immobiliser ou de bloquer celle-ci.
  10. Machine selon l'une des revendications 1 à 9, caractérisée en ce que la découpe de matériau possède un contour extérieur complémentaire de l'évidement.
  11. Machine selon l'une des revendications 1 à 10, caractérisée en ce que le au moins un rouleau (2) au moins unique et la table de pliage (3) peuvent être approchés l'un de l'autre pour la sollicitation en pression et/ou pour modifier la pression d'application.
  12. Machine selon l'une des revendications 1 à 11, caractérisée en ce que le rouleau (2) est maintenu avec possibilité de remplacement dans la machine (1) de cintrage ou de pliage, et en ce qu'au moins deux rouleaux (2) de configurations différentes sont associés à la machine (1) de cintrage ou de pliage.
  13. Machine selon l'une des revendications 1 à 12, caractérisée en ce qu'au moins deux rouleaux (2) de longueurs différentes, et/ou au moins un rouleau cylindrique ainsi qu'au moins un rouleau conique, sont associés à la machine (1) de cintrage ou de pliage.
  14. Machine selon l'une des revendications 1 à 13, caractérisée en ce qu'au moins deux tables de pliage (3), et en particulier au moins deux deuxièmes éléments de table (7) de largeurs différentes, qui peuvent être sélectivement montés dans la machine (1) de cintrage ou de pliage, sont associés à la machine (1) de cintrage ou de pliage.
EP07033525A 2006-10-25 2007-10-19 Machine de cintrage ou de pliage Not-in-force EP1916043B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006050116A DE102006050116B3 (de) 2006-10-25 2006-10-25 Rundbiegemaschine

Publications (2)

Publication Number Publication Date
EP1916043A1 EP1916043A1 (fr) 2008-04-30
EP1916043B1 true EP1916043B1 (fr) 2009-06-24

Family

ID=38962605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07033525A Not-in-force EP1916043B1 (fr) 2006-10-25 2007-10-19 Machine de cintrage ou de pliage

Country Status (4)

Country Link
US (1) US7536891B2 (fr)
EP (1) EP1916043B1 (fr)
AT (1) ATE434497T1 (fr)
DE (2) DE102006050116B3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6020515B2 (ja) * 2014-05-30 2016-11-02 トヨタ自動車株式会社 サブマフラ外筒の製造方法及び製造装置
KR101794037B1 (ko) 2016-05-11 2017-11-07 부산대학교 산학협력단 나선형 블레이드 제조방법
CN108422160A (zh) * 2018-03-27 2018-08-21 深圳市金合联供应链技术有限公司 一种不锈钢锥形罐身的制作方法
CN111702047A (zh) * 2020-06-23 2020-09-25 南通超力卷板机制造有限公司 数控圆盘式柔性锥形件滚弯成形机

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US2251901A (en) * 1937-08-05 1941-08-05 Cairns Corp Method and apparatus for rolling curved sheets
US3279234A (en) * 1962-12-13 1966-10-18 Superior Electric Co Plate rolling machine
US3438232A (en) * 1967-03-21 1969-04-15 Kaufmann Tool & Eng Corp Rolling machine
IT1035296B (it) * 1974-05-28 1979-10-20 Colbath Dan Louis Macchina formatrice a rulli per produrre articoli con sezioni trasversali di configurazioni variabili
SU1233984A1 (ru) * 1984-12-07 1986-05-30 Казанский Ордена Трудового Красного Знамени И Ордена Дружбы Народов Авиационный Институт Им.А.Н.Туполева Машина дл гибки листов
SU1342559A1 (ru) * 1985-12-30 1987-10-07 Казанский Авиационный Институт Им.А.Н.Туполева Машина дл гибки конических обечаек
US4811587A (en) * 1987-10-28 1989-03-14 Knudson Gary Art Apparatus for making panels
JPH0671629B2 (ja) * 1989-06-28 1994-09-14 株式会社長谷川鉄工所 ロール成形装置
WO1997003771A1 (fr) * 1995-07-19 1997-02-06 Nakata Manufacturing Co., Ltd. Appareil de formage a rouleaux de guidage pour realiser un tube soude par resistance electrique et appareil a rouleaux a usage double utilisant celui-ci
US5862694A (en) * 1997-08-19 1999-01-26 Union Metal Corporation Tapered tube manufacturing apparatus and process
JP2989569B2 (ja) * 1997-09-01 1999-12-13 株式会社山陽精機 電縫管のブレイクダウン成形法
JP4088807B2 (ja) * 1998-04-17 2008-05-21 株式会社三葉電熔社 テーパ管の製造装置
EP0979690B1 (fr) * 1998-06-16 2001-08-22 KBH Produktions-Automation GmbH & Co. Vertriebs-KG Machine à dresser

Also Published As

Publication number Publication date
US7536891B2 (en) 2009-05-26
ATE434497T1 (de) 2009-07-15
DE502007000931D1 (de) 2009-08-06
US20080098785A1 (en) 2008-05-01
EP1916043A1 (fr) 2008-04-30
DE102006050116B3 (de) 2008-04-24

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