EP2032279A1 - Method for folding an edge of a sheet component in particular a sheet component of a motor vehicle chassis - Google Patents
Method for folding an edge of a sheet component in particular a sheet component of a motor vehicle chassisInfo
- Publication number
- EP2032279A1 EP2032279A1 EP07729385A EP07729385A EP2032279A1 EP 2032279 A1 EP2032279 A1 EP 2032279A1 EP 07729385 A EP07729385 A EP 07729385A EP 07729385 A EP07729385 A EP 07729385A EP 2032279 A1 EP2032279 A1 EP 2032279A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- folding
- edge
- sheet metal
- metal component
- 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.)
- Granted
Links
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 for folding an edge of a sheet metal component, in particular a door, a flap or similar component of a Kf.-.- bodywork, wherein the angled edge is brought to a guided along this edge folding roller on the adjacent part of the sheet metal component to the plant , wherein as a folding roller at its peripheral periphery (lateral surface) conically contoured roll is used with an oblique position of its axis of rotation to the sheet metal component level that it first attacks the edge of the angled edge in the direction of movement with its forward portion of its larger diameter and then continuously over the conical region of its shell to the region of its smallest diameter, the edge further folded up to the plant on the adjacent part of the sheet metal component.
- a folding roller at its peripheral periphery (lateral surface) conically contoured roll is used with an oblique position of its axis of rotation to the sheet metal component level that it first attacks the edge of the angled edge in the direction of movement with its forward portion of its larger diameter and then continuously
- 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 at a critical speed to the fact that the folding roller the 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.
- a method for folding an edge of a sheet metal part of the type mentioned is known (EP 1 445 043 Al, Fig. 4 and 5 with associated text).
- the conically contoured roller is employed with its axis of rotation only obliquely to the plane of the sheet metal component to be folded. This results in a comparatively short section of the folding process in the direction of movement of the roller. Therefore, considerable forming forces are required, and there is a risk of a non-optimal folding result.
- the invention has for its object to provide a method for folding, which can be performed with high folding speed and high process reliability.
- This object is achieved in a method of the type mentioned above in that the folding roller is also employed with respect to its axis of rotation obliquely to the direction of movement.
- 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.
- Z. B 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).
- Fig. 1 is a folding roller and a sheet metal component to be folded during the folding process in a perspective view from the opposite direction to the direction of movement and
- Fig. 2 the folding roller in axial section.
- 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 seaming 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)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006028833A DE102006028833A1 (en) | 2006-06-21 | 2006-06-21 | A method for folding an edge of a sheet metal component, in particular a sheet metal part of a motor vehicle body |
PCT/EP2007/054946 WO2007147692A1 (en) | 2006-06-21 | 2007-05-22 | Method for folding an edge of a sheet component in particular a sheet component of a motor vehicle chassis |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2032279A1 true EP2032279A1 (en) | 2009-03-11 |
EP2032279B1 EP2032279B1 (en) | 2009-12-02 |
Family
ID=38421463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07729385A Not-in-force EP2032279B1 (en) | 2006-06-21 | 2007-05-22 | Method and apparatus for folding an edge of a sheet component in particular a sheet component of a motor vehicle chassis |
Country Status (7)
Country | Link |
---|---|
US (1) | US8302444B2 (en) |
EP (1) | EP2032279B1 (en) |
AT (1) | ATE450328T1 (en) |
BR (1) | BRPI0713721A2 (en) |
DE (2) | DE102006028833A1 (en) |
ES (1) | ES2336623T3 (en) |
WO (1) | WO2007147692A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2632539C (en) * | 2005-12-05 | 2011-08-02 | Honda Motor Co., Ltd. | Hemming working method and working apparatus |
DE102009024344B4 (en) * | 2009-06-09 | 2011-02-24 | Edag Gmbh & Co. Kgaa | Method and tool for flanging a workpiece |
JP5932411B2 (en) * | 2012-03-13 | 2016-06-08 | 本田技研工業株式会社 | Roller hemming apparatus and roller hemming method |
CN102641932B (en) * | 2012-05-14 | 2014-11-19 | 厦门市逸超实业有限公司 | Sheet metal flanging machine |
FR2990887B1 (en) * | 2012-05-24 | 2014-05-09 | Peugeot Citroen Automobiles Sa | CRIMPING DEVICE FOR REALIZING A SECTION CRIMPING IN WATER DROP |
CN106466689B (en) * | 2015-08-14 | 2019-03-05 | 苏州瑞本智能科技有限公司 | The fold method of carbon slipper bracket |
CN106466693B (en) * | 2015-08-14 | 2018-10-19 | 苏州瑞本智能科技有限公司 | Carbon slipper bracket folding brake |
DE102018124520A1 (en) * | 2018-10-04 | 2020-04-09 | Hewi G. Winker Gmbh & Co. Kg | Method of manufacturing a mother unit and mother unit |
CN109570301A (en) * | 2018-11-12 | 2019-04-05 | 浙江双飞无油轴承股份有限公司 | One Albatra metal face has the bimetallic strip of oil pit that angle is continuously pressed to form chamfering method with roll-in |
US12059862B2 (en) * | 2019-05-02 | 2024-08-13 | Jt International S.A. | Method and device for forming a fold in an overwrapping film |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2091474A (en) * | 1936-11-25 | 1937-08-31 | Int Harvester Co | Edge clinching mechanism |
DE1115693B (en) | 1959-10-29 | 1961-10-26 | Otto Leonhard | Sheet metal folding machine |
US3680346A (en) * | 1971-01-04 | 1972-08-01 | Rudolph R Wilcox | Crimping tool |
JP2675347B2 (en) * | 1988-09-06 | 1997-11-12 | マツダ株式会社 | Hemming molding equipment |
JPH0790299B2 (en) | 1991-08-01 | 1995-10-04 | トライエンジニアリング株式会社 | Roller type hemming method |
US6161410A (en) * | 1998-08-11 | 2000-12-19 | Unova Ip Corp. | Multi-axis roller hemmer |
JP3563349B2 (en) | 1998-09-08 | 2004-09-08 | トライエンジニアリング株式会社 | Roller rolling type processing apparatus and roller rolling type processing method |
US6425277B2 (en) * | 1999-12-30 | 2002-07-30 | Unova Ip Corp. | Sheet metal hemming method and apparatus |
JP3623474B2 (en) | 2001-10-31 | 2005-02-23 | トライエンジニアリング株式会社 | Hemming apparatus and hemming method |
US6810707B2 (en) * | 2002-05-10 | 2004-11-02 | Ford Motor Company | Compressed-radius hem-forming process and tool |
US6983633B2 (en) * | 2003-10-24 | 2006-01-10 | Ford Global Technologies, Llc | Apparatus for roll hemming with zero angle deflection |
US20050262912A1 (en) * | 2004-05-25 | 2005-12-01 | Tesco Engineering, Inc. | Robotic roller hemming alignment apparatus and method |
US7290423B2 (en) * | 2004-06-28 | 2007-11-06 | Gm Global Technology Operations, Inc. | Roller hemming apparatus and method |
-
2006
- 2006-06-21 DE DE102006028833A patent/DE102006028833A1/en not_active Withdrawn
-
2007
- 2007-05-22 DE DE502007002204T patent/DE502007002204D1/en active Active
- 2007-05-22 WO PCT/EP2007/054946 patent/WO2007147692A1/en active Application Filing
- 2007-05-22 AT AT07729385T patent/ATE450328T1/en active
- 2007-05-22 EP EP07729385A patent/EP2032279B1/en not_active Not-in-force
- 2007-05-22 ES ES07729385T patent/ES2336623T3/en active Active
- 2007-05-22 BR BRPI0713721-4A patent/BRPI0713721A2/en not_active IP Right Cessation
- 2007-05-22 US US12/304,908 patent/US8302444B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2007147692A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2032279B1 (en) | 2009-12-02 |
BRPI0713721A2 (en) | 2012-10-30 |
US8302444B2 (en) | 2012-11-06 |
WO2007147692A1 (en) | 2007-12-27 |
US20090301158A1 (en) | 2009-12-10 |
DE102006028833A1 (en) | 2007-12-27 |
ATE450328T1 (en) | 2009-12-15 |
ES2336623T3 (en) | 2010-04-14 |
DE502007002204D1 (en) | 2010-01-14 |
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