WO2006000295A1 - Systeme de pivotement destine a un dispositif de bordage - Google Patents

Systeme de pivotement destine a un dispositif de bordage Download PDF

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Publication number
WO2006000295A1
WO2006000295A1 PCT/EP2005/006122 EP2005006122W WO2006000295A1 WO 2006000295 A1 WO2006000295 A1 WO 2006000295A1 EP 2005006122 W EP2005006122 W EP 2005006122W WO 2006000295 A1 WO2006000295 A1 WO 2006000295A1
Authority
WO
WIPO (PCT)
Prior art keywords
tilting
actuator
tilting unit
flanging
unit
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.)
Ceased
Application number
PCT/EP2005/006122
Other languages
German (de)
English (en)
Inventor
Winfried Dahler
Ernst Deppert
Heinrich-Wolfram KÄSTNER
Thomas Lissmann
Reinhold Mertel
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.)
GM Global Technology Operations LLC
Original Assignee
GM Global Technology Operations LLC
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 GM Global Technology Operations LLC filed Critical GM Global Technology Operations LLC
Priority to EP05750494A priority Critical patent/EP1763412B1/fr
Priority to US11/570,862 priority patent/US20080083258A1/en
Priority to DE502005005043T priority patent/DE502005005043D1/de
Publication of WO2006000295A1 publication Critical patent/WO2006000295A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
    • 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
    • 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

Definitions

  • the invention relates to the handling of workpieces when performing machining operations, in particular during beading.
  • Beading also called folding, falls within the scope of the non-cutting forming technique. This refers to the folding of an angled edge or a flanged flange of an outer sheet or a skin over an inner sheet or a skeleton. Sense of flanging is, if necessary, using adhesive at least two sheet metal parts or skin and skeletons firmly together. In automotive engineering, the process is mostly used on vehicle components such as hood, door, rear flap, rear compartment lid and roof.
  • flanging When flanging the contour of the component is determined. One differentiates between inside and outside flanging. When external flanging the outer contour of the component such. B. hood, door, remindwand ⁇ flap, and rear space ceiling set. In the case of inner beading, the contour of window cut-outs such as roof or door is determined.
  • Beading has a decisive influence on the quality of installation of the components in the body in terms of gap and drop. Beading is often done in two to three steps. This is called tilting, pre and crimping. There are several different crimping systems.
  • the production part is driven against a fixed tool in a special holding device, the so-called “crimping bed.”
  • the production part is fixed in a mold and the tools move to crimp a movable and rotatable roller, this is called “Roll ⁇ beading".
  • Flanging devices are in the broader sense driven pressing tools.
  • the equipment is often driven hydraulically, pneumatically or electrically.
  • Beading jaws can be moved hydraulically, pneumatically or electrically via servo motors.
  • a crimping bed often forms the receptacle for the outer skin and skeleton. It is the exact 3D shape of the outer skin and thus a prerequisite for the required Fallungs37.
  • the bed is considered a basis or zero reference and requires no post-processing or training.
  • the crimping jaws or crimping stones produce an open or even completely closed ring in their working position. At the crimping jaws or creasing the actual forming takes place, since therein the flange positions are pre-worked for pre and crimping.
  • a two-stage crimping device the rows of jaws are arranged one above the other, in a single-stage only one row of blocks is mounted either for pre-crimping or finish-crimping.
  • the criterion for the one- or two-stage is the cycle time of the manufacturing cell in connection with the drive type of the direction. Frequently, two-stage flanging devices are used.
  • pre- and finish flanging jaws are used successively. Due to the hydraulic lifting of the plunger, the flanging flange is folded over at the creasing blocks.
  • the two components, the skeleton and the skin, are positioned using the constrained guides and locating bolts after the basic alignment holes (ASKF). Hold-downs can secure the form-fitting contact with the skeleton on the outer skin immediately before the crimping process. With a hold-down device, the framework is pressed onto the skin before and during the crimping process and thus in the form of the crimping bed. This minimizes scaling errors and ensures the desired overlap of the flanging flange over the framework.
  • ASKF basic alignment holes
  • EP 0 820 822 A1 and WO 97/43165 show such machine tools which are used for folding or flanging metal sheets.
  • the invention is intended to simplify the handling of workpieces when carrying out machining operations and to improve the work result. This object is achieved by the subject matter of the independent patent claims. Advantageous developments emerge from the dependent claims.
  • the invention does not provide for a complicated flanging device or modified hold-down as would be conceivable in order to achieve a better working result. Rather, a simplification of the tilting devices previously used is provided.
  • at least one standard drive element and a slide, which has a Ankippformbacken directly on its front used.
  • the flange of a metal skin is processed.
  • drive elements for example, pneumatic cylinders, hydraulic cylinders, an armature of a coil or a spindle of an electric drive can be used. These drive elements can be operated without additional gearbox or without the intervention of a large-scale toggle mechanism.
  • the invention facilitates and improves tipping, in which only "critical areas" are processed on a separate tilting device (first stage) .
  • the preforming and finish flanging then takes place on the actual flanging press (second and third stage). and processes the complete flange of the outer contour.
  • “Critical areas” may be present in sections with very small radii, large opening angles (greater than approximately 116 °) and also in parts where, unlike a predetermined flanging position, the flanging flange has to be crimped Invention avoided.
  • radii or flanged flange positions of less than approximately 116 ° and, in the case of an unfavorable shape profile, the possibility also exists that the joining of the framework into the skin by means of overhead or robots is also dependent on the position of the component in the flanging bed. Even in such areas, it has been proven to tilt according to the invention.
  • the invention avoids complicated built tilting units, which involve elaborate and rotated in three axes weldments. These designs require very complex designs and CAD studies and have not been proven.
  • brackets are provided for holding the tilting unit, which are part of the crimping.
  • cast-in consoles have proven themselves.
  • Guideways for the slides can be produced in one clamping already during the shaping of the flanging bed.
  • the invention thus makes it possible to provide tilting devices which are particularly easy to produce and which are substantially less expensive than those of the prior art. A cost saving of up to 40% per tilting device can be expected.
  • the invention is also embodied in a machine tool designed as a processing device, which has the tilting unit according to the invention.
  • a machine tool designed as a processing device, which has the tilting unit according to the invention.
  • a tilting unit With the tilting unit, a beading edge of a sheet metal skin is locally bent, for example, at a point that would tip in a non-intentional direction during subsequent beading.
  • a tilting unit according to the invention is provided at a location where particularly small bending radii are to be generated.
  • the invention enables a cheap and less complex overall construction. With the invention, a standardization of the Ankippismeen within a tilting system is possible. These systems are no longer component-dependent and model-to-model.
  • the skin is easily tilted in the region of the flanging flange, thus achieving a desired overlap of the flanging flange, e.g. ensured over the skeleton.
  • the tilting systems according to the invention are attached to mechanically less complicated constructions.
  • the mechanical design specifications allow a low construction height and width.
  • the assembly is very easy due to the small size of the system. Ankippantriebe that are mounted on a far over the crimping cantilever frame, no longer need to be provided.
  • the skin is tilted in a simple manner in the region of the flanging flange and thus ensures a desired overlapping of the flanging flange, for example via the frame.
  • a tilting device according to the invention will be described.
  • All tilting units of the tilting device are in the basic position, i. in the rear end position.
  • the two components, skeleton and skin, are inserted and positioned with forced insertion guides, receiving and locking pins after the basic alignment bores (ASKF).
  • the framework is pressed by means of tensioners into the skin and thus also into the bed of the tilting device.
  • holding-down devices swivel into the root of the crimping edge of the outer skin and retain it in the shape of an edging jaw.
  • the pneumatic cylinder By the pneumatic cylinder, the slide is then driven with the attached mold jaws against the flare flange to the end position. The necessary dimensional adjustment takes place via a threaded spindle on the piston rod.
  • the pneumatic cylinder, the hold-down and centering drive back to the normal position.
  • the tilting is completed and the part is taken out of the device and placed in the crimping press for further processing.
  • FIG. 1 shows a partial region of a tilting device according to the invention in side view
  • FIG. 2 shows a portion of a steel sheet to be flanged and
  • FIG. 3 shows a further subregion of the tilting unit according to the invention from FIG. 1.
  • FIG. 1 shows a tilting device 1 according to the invention in a view from the side.
  • the tilting device 1 is divided into a hemming bed 2 with a cast-on bracket 17 for a slide 7, in a welded construction 3 for receiving a pneumatic cylinder 5, in a fitting 9, in a guide 4 and in a piston rod with an adjusting unit 6.
  • the welded construction 3 represents a holder for the pneumatic cylinder 5 and is fastened to the bracket 17 designed as a sprue.
  • a machined top 13 of the bracket 17 serves as a support for the guide 4 of the slider 7, which is connected to the Kol ⁇ rod 6 of the pneumatic cylinder 5.
  • a mold jaws 9 is provided at the front of the slider 7, .
  • FIG. 2 and FIG. 3 illustrate the forming of a flange flange 10 of the steel sheet skin 14.
  • the flanging flange 10 of the steel sheet skin 14 is bent to an angle of more than 116 ° before actuation of the tilting unit 1. After tilting the flare flange 10 is bent further, to an acute angle of about 70 °. This condition is shown by a dashed line.
  • FIG. 3 illustrates the effect of the shaping jaw 9 during a displacement along the displacement direction 8.
  • the front side of the shaping jaw is 9 edited so that the desired angular position of the crimping flange 10 is achieved after a stroke of the mold jaw 9.
  • the holding-down device 11, not shown in FIG. 1 contributes to an optimum beading result.
  • the invention eliminates push-pull-strengthened toggle levers on any actuators, whereby the tilting unit 1 according to the invention can be designed with a particularly small installation space and with direct application of force.
  • the machine tool according to the invention can be produced particularly easily.
  • the number of "critical areas" of the steel sheet 14 is cast on the mounting surfaces for guiding the slides 9 in the area of the tilting bed 2 to be provided in the region of the tilting devices or tilting units to be provided, the number of tilting units being dependent on the component to be determined in each case.
  • These mounting surfaces are co-machined at the same time as the shaping of the crimping bed 2, which in relation to the previous production involves only a small additional expenditure Sprue or on the console 17.
  • the slider 9 and the hold 11 are manufactured according to CAD / CAM data.
  • pneumatic cylinder 5 With the example shown in Figure 1 pneumatic cylinder 5 'can be easily Ankipp mechanism of more than 4500 N produce.
  • the necessary thrust force is determined depending on the component.
  • the smallest possible angle of the flange 10 is sought.
  • a shaped piece in the form of a hold-down 11 is pressed into the so-called "root" 12.
  • this holding-down device 11 prevents the unintentional curling or drawing in of the steel sheet skin during the tilting process, which counteracts the occurrence of bulges.
  • the hold-down 11 can be operated with a pivoting cylinder, not shown here, with a hydraulic cylinder, with a pneumatic cylinder, electrically or any kind of mechanical actuation. The corresponding contact pressure is determined according to the respective requirements.
  • the installation of the hold-down can be both inside and outside of the crimping 2.
  • a welded construction as a supporting component of the hold-down drive is conceivable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Wire Processing (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Tyre Moulding (AREA)

Abstract

L'invention concerne une unité de pivotement (1) comportant un actionneur (5) présentant un coulisseau (7) pouvant décrire un mouvement de va-et-vient dans une direction de coulissage (8), le côté avant du coulisseau (7) étant pourvu d'une mâchoire de formage par pivotement (9) destinée au formage d'un rebord de bordage (10) d'un revêtement en tôle (14).
PCT/EP2005/006122 2004-06-29 2005-06-08 Systeme de pivotement destine a un dispositif de bordage Ceased WO2006000295A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP05750494A EP1763412B1 (fr) 2004-06-29 2005-06-08 Dispositif de bordage avec un systeme de pivotement
US11/570,862 US20080083258A1 (en) 2004-06-29 2005-06-08 Tilting System for a Flanging Device
DE502005005043T DE502005005043D1 (fr) 2004-06-29 2005-06-08

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004031290A DE102004031290A1 (de) 2004-06-29 2004-06-29 Ankippsystem für eine Bördelvorrichtung
DE102004031290.7 2004-06-29

Publications (1)

Publication Number Publication Date
WO2006000295A1 true WO2006000295A1 (fr) 2006-01-05

Family

ID=34969858

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/006122 Ceased WO2006000295A1 (fr) 2004-06-29 2005-06-08 Systeme de pivotement destine a un dispositif de bordage

Country Status (6)

Country Link
US (1) US20080083258A1 (fr)
EP (1) EP1763412B1 (fr)
CN (1) CN100484658C (fr)
AT (1) ATE404304T1 (fr)
DE (2) DE102004031290A1 (fr)
WO (1) WO2006000295A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009060227A1 (de) * 2009-12-23 2011-07-07 Audi Ag, 85057 Verfahren zur Herstellung einer Bauteilverbindung eines Karosseriebauteils und Einstelleinheit

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006059962A1 (de) 2006-12-19 2008-06-26 GM Global Technology Operations, Inc., Detroit Abkantvorrichtung und Verfahren zum Abkanten von Werkstücken
DE102007025854B3 (de) * 2007-06-01 2008-10-16 Thyssenkrupp Drauz Nothelfer Gmbh Vorrichtung zum randseitigen Verbinden von Blechen
CN102062909B (zh) * 2010-12-28 2012-03-07 索尔思光电（成都）有限公司 一种用于光模块钣金件锁扣的气动折弯装置
US9216449B2 (en) * 2011-12-22 2015-12-22 Caterpillar Inc. Controlled crimping method and system
CN103846329B (zh) * 2012-11-30 2017-03-01 通用汽车环球科技运作有限责任公司 滚子卷边

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JPS59110427A (ja) * 1982-12-15 1984-06-26 Nissan Motor Co Ltd プリヘムダイ
US6182492B1 (en) * 1999-11-01 2001-02-06 E.R. St. Denis Inc. Hemming machine
US6487888B1 (en) * 2000-10-05 2002-12-03 Valiant Corporation Hemming machine
EP1402968A1 (fr) * 1999-11-25 2004-03-31 Ford-Werke Aktiengesellschaft Machine à border

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JPS5728633A (en) * 1980-07-25 1982-02-16 Toyota Motor Corp Method for hemming working and its apparatus
IT1222347B (it) * 1987-07-03 1990-09-05 Antonio Codatto Pressa piegatrice per lamiere
FR2630356A1 (fr) * 1988-04-20 1989-10-27 Dimeco Alipresse Machine a plier les toles
JP3456066B2 (ja) * 1995-09-19 2003-10-14 三菱電機株式会社 アーク制御装置
KR0159201B1 (ko) * 1995-12-06 1998-12-01 양승택 Cdma 시스템에서의 동기식 이중 채널 qpsk 변복조 장치 및 그 변복조방법
FR2751627B1 (fr) * 1996-09-24 1998-10-16 Remericq Maurice Installation pour l'emmagasinage temporaire d'articles et procede de commande du fonctionnement de cette installation
US5897292A (en) * 1997-10-07 1999-04-27 The Procter & Gamble Company Apparatus and method for forming arrays of articles for packaging
JP3691696B2 (ja) * 1999-09-03 2005-09-07 ダイハツ工業株式会社 ロボット装着式ヘミング装置
CN1404939A (zh) * 2001-08-13 2003-03-26 白树琪 一种折压封边机
US6810708B2 (en) * 2002-02-27 2004-11-02 Lion Machinery, Inc. Sheet metal bending machine for forming cleats

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59110427A (ja) * 1982-12-15 1984-06-26 Nissan Motor Co Ltd プリヘムダイ
US6182492B1 (en) * 1999-11-01 2001-02-06 E.R. St. Denis Inc. Hemming machine
EP1402968A1 (fr) * 1999-11-25 2004-03-31 Ford-Werke Aktiengesellschaft Machine à border
US6487888B1 (en) * 2000-10-05 2002-12-03 Valiant Corporation Hemming machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 230 (M - 333) 23 October 1984 (1984-10-23) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009060227A1 (de) * 2009-12-23 2011-07-07 Audi Ag, 85057 Verfahren zur Herstellung einer Bauteilverbindung eines Karosseriebauteils und Einstelleinheit
DE102009060227B4 (de) 2009-12-23 2018-04-19 Audi Ag Verfahren zur Herstellung einer Bauteilverbindung eines Karosseriebauteils und Einstelleinheit

Also Published As

Publication number Publication date
CN100484658C (zh) 2009-05-06
DE502005005043D1 (fr) 2008-09-25
ATE404304T1 (de) 2008-08-15
DE102004031290A1 (de) 2006-02-09
EP1763412B1 (fr) 2008-08-13
US20080083258A1 (en) 2008-04-10
CN1972768A (zh) 2007-05-30
EP1763412A1 (fr) 2007-03-21

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