EP2032279B1 - Procédé et dispositif pour replier un bord d'une pièce de tôle, en particulier d'une pièce de tôle d'une carrosserie de véhicule à moteur - Google Patents

Procédé et dispositif pour replier un bord d'une pièce de tôle, en particulier d'une pièce de tôle d'une carrosserie de véhicule à moteur Download PDF

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Publication number
EP2032279B1
EP2032279B1 EP07729385A EP07729385A EP2032279B1 EP 2032279 B1 EP2032279 B1 EP 2032279B1 EP 07729385 A EP07729385 A EP 07729385A EP 07729385 A EP07729385 A EP 07729385A EP 2032279 B1 EP2032279 B1 EP 2032279B1
Authority
EP
European Patent Office
Prior art keywords
edge
folding
folding roller
roller
metal component
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
EP07729385A
Other languages
German (de)
English (en)
Other versions
EP2032279A1 (fr
Inventor
Mario Hermann
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.)
ThyssenKrupp Drauz Nothelfer GmbH
Original Assignee
ThyssenKrupp Drauz Nothelfer 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 ThyssenKrupp Drauz Nothelfer GmbH filed Critical ThyssenKrupp Drauz Nothelfer GmbH
Publication of EP2032279A1 publication Critical patent/EP2032279A1/fr
Application granted granted Critical
Publication of EP2032279B1 publication Critical patent/EP2032279B1/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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
    • B21D39/021—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors
    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
    • B21D39/021—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors
    • B21D39/023—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors using rollers

Definitions

  • the invention relates to a method and a device for folding an edge of a sheet-metal component, in particular a door, a flap or a similar component of a motor vehicle body, according to the preamble of claim 1 or 5.
  • the folded edge is folded in several stages by means of a folding roller whose shell is cylindrical. Even with this multi-stage folding develops at higher running speed of the folding roller leading material wave, which leads to the folding roller when the critical speed is exceeded Material wave skips, which leads to folding errors. Therefore, the running speed of the folding roller is limited to 200 mm / s depending on the thickness of the sheet to be folded.
  • the invention has for its object to provide a method for folding, which can be performed with high folding speed and high process reliability.
  • the folding of the fold takes place in one stage. Because of the special shape of the folding roller and its skewed (twice oblique: oblique position of its axis of rotation a) to the plane of the sheet metal component and b) to their direction of movement employment this engages over a longer distance on umitzden edge as a staff with their axis perpendicular to the direction of movement, cylindrical folding roll on. Therefore, in contrast to a method with a cylindrical roller, no anticipatory forms Material shaft as in the prior art, with the result that it comes to folding errors. This has the further advantage that the method according to the invention can be carried out with a comparatively high folding speed, for example with at least 800 m / sec, in particular 1200 m / sec and more.
  • the conical jacket region has the contour of a groove.
  • the contour corresponds to half a parabola.
  • the contour does not have to be parabolic in the strictly mathematical sense; Other contours are conceivable. Eg a Traktrix curve, also called tow / Treidelkurve.
  • the folding roller is preferably driven.
  • the roll-folding method according to the invention works particularly well when substantially cylindrical edge regions adjoin the conical region.
  • the concrete geometric contour of the roll and its setting depends on the fold, its material thickness and the flow behavior of the material.
  • the user can easily determine the optimum combination of the parameters by operating tests.
  • the relative geometric relationships and movements between the seaming roller and the edge to be folded can be realized in manifold ways.
  • the edge can be held stationary and the role moved and hired or vice versa, or a combination thereof.
  • the means used can be carriages, rails, driving and guiding and adjusting means (robots).
  • the method according to the invention can be carried out on a sheet-metal component with a simple fold or on a sheet-metal component with the inclusion of a further sheet-metal component.
  • the embodiment shows a method for folding a simple fold.
  • the sheet metal part 1 with a bent upstanding edge 2 on a bed 3 is fixed locally.
  • the bed 3 may be stationary but may also be moved, depending on which components are to be folded.
  • the bed 3 Above the bed 3 is a contoured freewheeling or driven folding roller 4 in the longitudinal direction of the edge 2 and mounted parallel to this movable.
  • the required drive and guide means are not shown in the drawing.
  • the lateral surface 5 of the folding roller 4 is composed of two outer edge regions 5a, 5b and a central region 5c, the outer edge regions 5a, 5b having a cylindrical shape and the middle region 5c, which is mainly responsible for the folding process, in the form of a cone.
  • the central region 5c is the contour of a groove, the generatrix of which is half a parabola, the middle region 5c having the groove ending on one side via a step on the outer region 5a of the largest diameter of the seaming roller 4 and steplessly on the other side outer region 5b of the smallest diameter merges.
  • Such a folding roller 4 can be so oblique to the direction of movement along the fold by means of the guide and adjusting means, not shown, that it initially attacks with its leading side of its outer portion 5a of its largest diameter on the upstanding edge 2 and thus the Relocation procedure initiates. The edge 2 then slides on over the central region 5c, where it is further folded over until it is finally pressed with the region 5b of its smallest diameter for engagement with the planar sheet-metal component 1.
  • flat but also drop-shaped folds for example, Eurofalze
  • the folding takes place continuously and at high folding speed.
  • the fold is thus one-step, i. in one step. Multi-stage folding steps, as known from the described prior art, are not required. The risk of folding errors is minimized because of the special shape and employment of the seaming roller 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Braking Arrangements (AREA)

Claims (5)

  1. Procédé pour replier un bord (2) d'une pièce en tôle (1), en particulier d'une porte, d'un hayon, ou d'un élément analogue d'une carrosserie de véhicule automobile, dans lequel le bord (2) replié est appliqué sur la partie adjacente de la pièce en tôle (1) au moyen d'un rouleau de pliage (4), qui est guidé le long de ce bord (2), le rouleau de pliage (4) utilisé étant un rouleau dont la surface latérale (5) présente un contour conique et l'axe de rotation étant incliné par rapport au plan de la pièce en tôle (1), le rouleau de pliage (4) étant, de plus, incliné par rapport à la direction de déplacement quant à son axe de rotation (4), caractérisé en ce que des zones marginales essentiellement cylindriques se raccordent à la section conique du rouleau de pliage (4), le rouleau de pliage (4) étant mis hors d'équerre par rapport à son sens de déplacement, par l'intermédiaire de moyens de guidage et de réglage, de sorte que ledit rouleau de pliage (4), lors de son déplacement, attaque tout d'abord le bord le plus élevé (2), avec le côté avant de sa zone extérieure cylindrique présentant le plus grand diamètre, ledit bord (2) glissant alors plus avant sur la zone médiane conique (5c), et le pliage dudit bord (2) se poursuivant jusqu'à ce que celui-ci soit enfin pressé contre la pièce en tôle (1) plane, avec la zone cylindrique (5b) présentant le plus petit diamètre.
  2. Procédé selon la revendication 1, caractérisé en ce que la zone conique (5c) de la surface latérale présente un contour en forme de gorge creuse.
  3. Procédé selon la revendication 2, caractérisé en ce que le contour en forme de gorge creuse correspond à une demie parabole.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que le rouleau contourné (6) est entraîné.
  5. Dispositif pour replier un bord (2) d'une pièce en tôle (1), en particulier d'une porte, d'un hayon, ou d'un élément analogue d'une carrosserie de véhicule automobile, avec un rouleau de pliage (4), ledit rouleau de pliage (4) consistant en un rouleau, dont la surface latérale (5) présente un contour conique, l'axe de rotation pouvant être incliné par rapport au plan de la pièce en tôle (1), de sorte que le bord (2) puisse être appliqué contre la partie y adjacente de la pièce en tôle (1), par guidage du rouleau de pliage (4) le long du bord replié, caractérisé en ce que des zones marginales essentiellement cylindriques (5a, 5b) se raccordent à la section conique (5c) du rouleau de pliage (4)), le rouleau de pliage (4) pouvant être incliné par rapport à son sens de déplacement le long de la pliure, par l'intermédiaire de moyens de guidage et de réglage, de sorte que le rouleau de pliage (4), lors de son déplacement, attaque tout d'abord le bord le plus élevé (2) avec le côté, en avant dans le sens de marche, de sa zone extérieure cylindrique de diamètre supérieur, et déclenche ainsi le processus de pliage, le bord (2) continuant de glisser sur la zone médiane conique (5c), le pliage du bord (2) étant poursuivi jusqu'à ce que celui-ci soit enfin pressé contre la pièce en tôle (1) plane, avec la zone cylindrique (5b) de diamètre inférieur.
EP07729385A 2006-06-21 2007-05-22 Procédé et dispositif pour replier un bord d'une pièce de tôle, en particulier d'une pièce de tôle d'une carrosserie de véhicule à moteur Not-in-force EP2032279B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006028833A DE102006028833A1 (de) 2006-06-21 2006-06-21 Verfahren zum Falzen eines Randes eines Blechbauteils, insbesondere eines Blechbauteils einer Kfz.-Karosserie
PCT/EP2007/054946 WO2007147692A1 (fr) 2006-06-21 2007-05-22 Procédé pour replier un bord d'une pièce de tôle, en particulier d'une pièce de tôle d'une carrosserie de véhicule à moteur

Publications (2)

Publication Number Publication Date
EP2032279A1 EP2032279A1 (fr) 2009-03-11
EP2032279B1 true EP2032279B1 (fr) 2009-12-02

Family

ID=38421463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07729385A Not-in-force EP2032279B1 (fr) 2006-06-21 2007-05-22 Procédé et dispositif pour replier un bord d'une pièce de tôle, en particulier d'une pièce de tôle d'une carrosserie de véhicule à moteur

Country Status (7)

Country Link
US (1) US8302444B2 (fr)
EP (1) EP2032279B1 (fr)
AT (1) ATE450328T1 (fr)
BR (1) BRPI0713721A2 (fr)
DE (2) DE102006028833A1 (fr)
ES (1) ES2336623T3 (fr)
WO (1) WO2007147692A1 (fr)

Cited By (2)

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FR2990887A1 (fr) * 2012-05-24 2013-11-29 Peugeot Citroen Automobiles Sa Dispositif de sertissage pour realiser un sertissage de section en goutte d'eau
CN109570301A (zh) * 2018-11-12 2019-04-05 浙江双飞无油轴承股份有限公司 一种铜合金面有油穴的双金属带料用辊压连续压角成型倒角方法

Families Citing this family (8)

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EP1958714B1 (fr) * 2005-12-05 2011-09-28 Honda Motor Co., Ltd. Procede de rabattage et dispositif de rabattage
DE102009024344B4 (de) * 2009-06-09 2011-02-24 Edag Gmbh & Co. Kgaa Verfahren und Werkzeug zum Bördeln eines Werkstücks
JP5932411B2 (ja) * 2012-03-13 2016-06-08 本田技研工業株式会社 ローラヘミング装置及びローラヘミング方法
CN102641932B (zh) * 2012-05-14 2014-11-19 厦门市逸超实业有限公司 一种金属薄板折边机
CN106466689B (zh) * 2015-08-14 2019-03-05 苏州瑞本智能科技有限公司 碳滑板托架的折边方法
CN106466693B (zh) * 2015-08-14 2018-10-19 苏州瑞本智能科技有限公司 碳滑板托架折边机
DE102018124520A1 (de) * 2018-10-04 2020-04-09 Hewi G. Winker Gmbh & Co. Kg Verfahren zur Herstellung einer Muttereinheit sowie Muttereinheit
JP7491947B2 (ja) * 2019-05-02 2024-05-28 ジェイティー インターナショナル エスエイ オーバーラップフィルム用引き裂きテープの排除方法及びデバイス

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
FR2990887A1 (fr) * 2012-05-24 2013-11-29 Peugeot Citroen Automobiles Sa Dispositif de sertissage pour realiser un sertissage de section en goutte d'eau
CN109570301A (zh) * 2018-11-12 2019-04-05 浙江双飞无油轴承股份有限公司 一种铜合金面有油穴的双金属带料用辊压连续压角成型倒角方法

Also Published As

Publication number Publication date
ATE450328T1 (de) 2009-12-15
BRPI0713721A2 (pt) 2012-10-30
ES2336623T3 (es) 2010-04-14
EP2032279A1 (fr) 2009-03-11
DE102006028833A1 (de) 2007-12-27
DE502007002204D1 (de) 2010-01-14
US8302444B2 (en) 2012-11-06
US20090301158A1 (en) 2009-12-10
WO2007147692A1 (fr) 2007-12-27

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