WO2000020144A1 - Method for folding sheet metal on a folding bed and device for carrying out said method - Google Patents

Method for folding sheet metal on a folding bed and device for carrying out said method Download PDF

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Publication number
WO2000020144A1
WO2000020144A1 PCT/EP1999/007236 EP9907236W WO0020144A1 WO 2000020144 A1 WO2000020144 A1 WO 2000020144A1 EP 9907236 W EP9907236 W EP 9907236W WO 0020144 A1 WO0020144 A1 WO 0020144A1
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WO
WIPO (PCT)
Prior art keywords
folding
clinching
sheets
jaws
jaw
Prior art date
Application number
PCT/EP1999/007236
Other languages
German (de)
French (fr)
Inventor
Erich Zimmer
Original Assignee
Thyssen Krupp Industries 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
Priority claimed from DE19849676A external-priority patent/DE19849676C1/en
Application filed by Thyssen Krupp Industries Ag filed Critical Thyssen Krupp Industries Ag
Priority to EP99948904A priority Critical patent/EP1124655A1/en
Priority to BR9914282-1A priority patent/BR9914282A/en
Publication of WO2000020144A1 publication Critical patent/WO2000020144A1/en

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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

Definitions

  • the invention relates to a method for folding sheets resting on a folding bed, in particular body panels in automobile construction, and a device for carrying out the method according to the preamble of claim 3.
  • the invention has for its object to propose a generic method and a device in which a permanent connection is created without an additional tensioning process being required.
  • the solution to this problem is described in claims 1 and 3.
  • the sub-claims 2 and 4 to 6 contain useful additions.
  • the sheets are flanged or folded in a manner known per se by lifting movements and, after folding before opening the folding jaws and the folding bed, the edges of the sheets that are still compressed are positively connected to one another by clinching. It has been shown that that that
  • the clinching or clinching can be carried out immediately after the flanging, so that there is no need for an additional tensioning process with the devices required for this.
  • the edges of the metal sheets to be pressed together can also be applied with adhesive in a manner known per se. Due to the fact that a permanent, firm connection of the sheets is present after the clinching, the adhesive basically has any amount of time for curing.
  • the device according to the invention for folding metal sheets lying on a folding bed for carrying out the method consists of a folding bed and folding jaws, of which at least one folding jaw can be linearly displaced and / or pivoted for bending the sheet edge and pressing it against the edge of another sheet, whereby for pushing through A clinching die is arranged in the one folding jaw and a clinching punch that is movable relative to the folding jaws is arranged in the opposite folding jaw.
  • the additional enforcement can be carried out in a simple manner.
  • a rocker arm to the outer jaw, which has the clinching punch at one end and engages a drive unit, preferably a pressure cylinder, at the other end.
  • the clinching punch is slidably guided in a hole in the jaw.
  • the two jaws with the device for clinching are expediently arranged on a common swivel flap or a linear displacement device, with which they e.g. are brought into a folding position above a folding bed, in which the folding bed is pressed against the folding jaws from below with the aid of a central plunger (cf. DE 43 30 683 C2).
  • Fig. 1 shows the device according to the invention partially in vertical section
  • FIG. 1st is an enlarged view of FIG. 1st
  • FIG. 3 an alternative to the embodiment of FIG. 1
  • FIG. 3rd 1 shows a folding bed 5, which is only shown in part, and a swivel flap 1 with the folding jaws 4 and 6 attached to it.
  • the folding jaw 4 is on the swivel flap 1 with the aid of a
  • the folding jaw 6 is firmly connected to the swivel flap 1.
  • the two jaws 4 and 6 are shown with the intermediate edges of the sheets 15 and 16 in the compressed position.
  • a rocker arm 7 is also attached to the swivel flap 1, at one end of which the clinching punch 11 and at the other end of which the drive unit 10 consisting of a pressure cylinder is attached via a fork head 8 and a bearing point 9.
  • the pressure cylinder is actuated, the clinching punch 11 is pressed in a bore in the folding jaw 6 in a sliding manner against the sheets 15/16 and into the clinching die 13 arranged in the opposing folding jaw 4.
  • the clinching punch 11 is moved back with the aid of the compression spring 12 and the folding jaws 4, 6 can then be moved apart to remove the sheets that are firmly connected to one another. If necessary, the swivel flap 1 can additionally be swiveled so far that the finished component can be removed from the folding bed 5.
  • the reference numerals of the elements which have been modified but have the same function as in FIGS. 1 and 2 are each provided with a dash.
  • the rocker arm 7 according to FIGS. 1 and 2 is dispensed with for actuating the clinching punch 11 '.
  • the one Printing cylinder existing drive unit 10 ' is supported on the shoulder 17 of the slide 3' and presses the clinching punch 11 'into the clinching die 13' during clinching.
  • the clinching punch 11 ' is guided in a bore 19 in an extension 18 of the slide 3' and in the jaw 4 '.
  • the clinching die 13 ' is arranged in the jaw 6'. After the clinching process has ended, the clinching punch 11 'is pushed back into its starting position with the aid of the compression spring 12'.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

The invention relates to a method for folding sheet metal (15, 16), especially automotive body sheet metal, on a folding bed (5), whereby the edge areas of one or several sheets of metal (15, 16) are bent by a number of folding jaws (4, 6) moving towards the folding bed (5) and are pressed onto the edge of another sheet. The invention is characterized in that the pressed edges of the metal sheets are connectedo each other in positive fit by means of push-through joints after folding has occurred and before the opening of the folding jaws (4, 6) and folding bed (5).

Description

Verfahren zum Falzen von auf einem Falzbett aufliegenden Blechen und Vorrichtung zur Durchführung des Verfahrens Process for folding sheets lying on a folding bed and device for carrying out the process
Beschreibung:Description:
Die Erfindung bezieht sich auf ein Verfahren zum Falzen von auf einem Falzbett aufliegenden Blechen, insbesondere Karosserieblechen im Automobilbau gemäß Oberbegriff des Anspruches 1 und eine Vorrichtung zur Durchführung des Verfahrens gemäß Oberbegriff des Anspruches 3.The invention relates to a method for folding sheets resting on a folding bed, in particular body panels in automobile construction, and a device for carrying out the method according to the preamble of claim 3.
Das Falzen oder Bördeln von sich überlappenden Flanschen von Automobilblechen ist an sich bekannt. Aus der DE 43 30 683 C2 ist eine Falzvorrichtung zum Falzen von auf einem Falzbett aufliegenden Metallblechen mittels randseitigem Falzen über eine Anzahl sich auf das Falzbett zu bewegender, schwenkbar gelagerter Falzbacken und mit Niederhaltern, die die Bleche während des Falzens fixieren, bekannt. Zusätzlich ist es inzwischen allgemein üblich, vor dem Falzen die zusammenzupressenden Ränder mit Kleber zu beaufschlagen. Dieser Kleber soll insbesondere für eine dauerhafte Abdichtung und somit einen Korrosionsschutz in dem Hohlraum zwischen den Blechen sorgen. Da die durch Falzen zusammengefügten Blechränder nach dem Lösen der Falzbacken geringfügig zurückfedern können und zu diesem Zeitpunkt der Kleber noch nicht gehärtet ist, hat man versucht, die Ränder der Bleche zusätzlich durch Punktschweißen oder Laserschweißen dauerhaft miteinander zu verbinden. Hierzu müssen die Bleche in einem zusätzlichen Vorgang vor dem Schweißen wieder miteinander verspannt werden.The folding or flanging of overlapping flanges of automotive sheet metal is known per se. From DE 43 30 683 C2 a folding device for folding metal sheets lying on a folding bed by means of edge-side folding over a number of pivoting folding jaws that can be moved onto the folding bed and with hold-down devices that fix the sheets during the folding process is known. In addition, it is now common practice to apply adhesive to the edges to be pressed together before folding. This adhesive is intended in particular to provide a permanent seal and thus corrosion protection in the cavity between the sheets. Since the sheet metal edges joined together by folding can spring back slightly after the jaws have been loosened and the adhesive has not yet hardened at this point, attempts have been made to permanently join the edges of the sheets by spot welding or laser welding. For this purpose, the sheets must be clamped together again in an additional process before welding.
Der Erfindung liegt die Aufgabe zugrunde ein gattungsgemäßes Verfahren und eine Vorrichtung vorzuschlagen, bei der eine dauerhafte Verbindung geschaffen wird, ohne dass ein zusätzlicher Spannvorgang erforderlich ist. Die Lösung dieser Aufgabe ist in den Ansprüchen 1 und 3 beschrieben. Die Unteransprüche 2 und 4 bis 6 enthalten sinnvolle Ergänzungen dazu. Erfindungsgemäß werden die Bleche in an sich bekannter Weise durch Hubbewegungen gebördelt bzw. gefalzt und nach dem Falzen vor dem Öffnen der Falzbacken und des Falzbettes werden die noch zusammengedrückten Ränder der Bleche durch Durchsetzfügen formschlüssig miteinander verbunden. Es hat sich gezeigt, dass dasThe invention has for its object to propose a generic method and a device in which a permanent connection is created without an additional tensioning process being required. The solution to this problem is described in claims 1 and 3. The sub-claims 2 and 4 to 6 contain useful additions. According to the invention, the sheets are flanged or folded in a manner known per se by lifting movements and, after folding before opening the folding jaws and the folding bed, the edges of the sheets that are still compressed are positively connected to one another by clinching. It has been shown that that
Durchsetzfügen ohne weiteres mit dem Bördeivorgang kombiniert werden kann. Insbesondere kann das Durchsetzfügen bzw. Clinchen sofort im Anschluß an das Bördeln durchgeführt werden, sodass auf einen zusätzlichen Spannvorgang mit eigenen dafür erforderlichen Vorrichtungen verzichtet werden kann. Dabei können auch in an sich bekannter Weise die zusammenzupressenden Ränder der Bleche mit Kleber beaufschlagt werden. Dadurch, dass nach dem Durchsetzfügen eine dauerhafte feste Verbindung der Bleche vorhanden ist, hat der Kleber im Prinzip beliebig viel Zeit zur Aushärtung.Enforcement can be easily combined with the exchange process. In particular, the clinching or clinching can be carried out immediately after the flanging, so that there is no need for an additional tensioning process with the devices required for this. The edges of the metal sheets to be pressed together can also be applied with adhesive in a manner known per se. Due to the fact that a permanent, firm connection of the sheets is present after the clinching, the adhesive basically has any amount of time for curing.
Die erfindungsgemäße Vorrichtung zum Falzen von auf einem Falzbett aufliegenden Metallblechen zur Durchführung des Verfahrens besteht aus einem Falzbett und Falzbacken, von denen mindestens eine Falzbacke zum Umbiegen des Blechrandes und Anpressen gegen den Rand eines anderen Bleches linear verschiebbar und/oder verschwenkbar ist, wobei zum Durchsetzfügen in der einen Falzbacke eine Clinchmatrize und in der gegenüberliegenden Falzbacke ein gegenüber den Falzbacken beweglicher Clinchstempel angeordnet ist. Insbesondere mit der erfindungsgemäßen Falzvorrichtung, bei der das Falzen im wesentlichen durch einen Hub und nicht durch eine fortschreitende Rollbewegung ausgeführt wird, kann auf einfache Weise das zusätzliche Durchsetzfügen durchgeführt werden. Es hat sich dazu als günstig erwiesen, an der äußeren Falzbacke einen Kipphebel anzubringen, der an einem Ende den Clinchstempel besitzt und an dessen anderem Ende eine Antriebseinheit, vorzugsweise ein Druckzylinder angreift. Der Clinchstempel wird dabei in einer Bohrung der Falzbacke gleitend geführt.The device according to the invention for folding metal sheets lying on a folding bed for carrying out the method consists of a folding bed and folding jaws, of which at least one folding jaw can be linearly displaced and / or pivoted for bending the sheet edge and pressing it against the edge of another sheet, whereby for pushing through A clinching die is arranged in the one folding jaw and a clinching punch that is movable relative to the folding jaws is arranged in the opposite folding jaw. In particular with the folding device according to the invention, in which the folding essentially by a stroke and not by a progressive rolling movement the additional enforcement can be carried out in a simple manner. For this purpose, it has proven to be advantageous to attach a rocker arm to the outer jaw, which has the clinching punch at one end and engages a drive unit, preferably a pressure cylinder, at the other end. The clinching punch is slidably guided in a hole in the jaw.
Alternativ zur Verwendung eines Kipphebels hat es sich als günstig erwiesen, dass der Clinchstempel mit einer Antriebseinheit verbunden ist, die sich in einem Schieber abstützt, der zur Verstellung einer Falzbacke dient.As an alternative to using a rocker arm, it has proven to be advantageous for the clinching punch to be connected to a drive unit which is supported in a slide which serves to adjust a folding jaw.
Die beiden Falzbacken mit der Vorrichtung zum Durchsetzfügen sind zweckmäßigerweise an einer gemeinsamen Schwenkklappe oder einer linearen Verschiebeinrichtung angeordnet, mit der sie z.B. in eine Falzposition über einem Falzbett gebracht werden, bei der das Falzbett mit Hilfe eines zentralen Stößels von unten gegen die Falzbacken gedrückt wird (vgl. DE 43 30 683 C2).The two jaws with the device for clinching are expediently arranged on a common swivel flap or a linear displacement device, with which they e.g. are brought into a folding position above a folding bed, in which the folding bed is pressed against the folding jaws from below with the aid of a central plunger (cf. DE 43 30 683 C2).
Die Erfindung wird anhand der beigefügten Figuren 1 bis 3 beispielsweise näher erläutert. Es zeigen:The invention is explained in more detail, for example, with the aid of the attached FIGS. 1 to 3. Show it:
Fig. 1 die erfindungsgemäße Vorrichtung teilweise im senkrechten SchnittFig. 1 shows the device according to the invention partially in vertical section
Fig. 2 eine vergrößerte Darstellung zu Fig. 12 is an enlarged view of FIG. 1st
Fig. 3 einer Alternative zur Ausführung Fig. 13 an alternative to the embodiment of FIG. 1
Fig. 4 eine vergrößerte Darstellung zu Fig. 3. In der Fig. 1 sind ein nur ausschnittsweise dargestelltes Falzbett 5 und eine Schwenkklappe 1 mit den daran befestigten Falzbacken 4 und 6 zu sehen. An der Schwenkklappe 1 ist die Falzbacke 4 mit Hilfe eines4 is an enlarged view of FIG. 3rd 1 shows a folding bed 5, which is only shown in part, and a swivel flap 1 with the folding jaws 4 and 6 attached to it. The folding jaw 4 is on the swivel flap 1 with the aid of a
Falzzylinders 14 und des Schiebers 3 in der Linearführung 2 bewegbar. Der Falzbacken 6 ist fest mit der Schwenkklappe 1 verbunden. In den Figuren 1 und 2 sind die beiden Falzbacken 4 und 6 mit den dazwischenliegenden Rändern der Bleche 15 und 16 in der zusammengepreßten Position dargestellt. An der Schwenkklappe 1 ist außerdem ein Kipphebel 7 befestigt, an dessen einem Ende der Clinchstempel 11 und an dessen anderen Ende über einen Gabelkopf 8 und eine Lagerstelle 9 die aus einem Druckzylinder bestehende Antriebseinheit 10 befestigt ist. Der Clinchstempel 11 wird bei Betätigen des Druckzylinders in einer Bohrung des Falzbacken 6 gleitend gegen die Bleche 15/16 und in die in dem gegenüberliegenden Falzbacken 4 angeordnete Clinchmatrize 13 gedrückt. Nach Entlasten des Druckzylinders 10 wird der Clinchstempel 11 mit Hilfe der Druckfeder 12 zurückbewegt und anschließend können die Falzbacken 4,6 zur Entnahme der fest miteinander verbundenen Bleche auseinanderbewegt werden. Falls erforderlich, kann zusätzlich die Schwenkklappe 1 soweit geschwenkt werden, dass das fertige Bauteil von dem Falzbett 5 entnommen werden kann.Folding cylinder 14 and the slider 3 in the linear guide 2 movable. The folding jaw 6 is firmly connected to the swivel flap 1. In Figures 1 and 2, the two jaws 4 and 6 are shown with the intermediate edges of the sheets 15 and 16 in the compressed position. A rocker arm 7 is also attached to the swivel flap 1, at one end of which the clinching punch 11 and at the other end of which the drive unit 10 consisting of a pressure cylinder is attached via a fork head 8 and a bearing point 9. When the pressure cylinder is actuated, the clinching punch 11 is pressed in a bore in the folding jaw 6 in a sliding manner against the sheets 15/16 and into the clinching die 13 arranged in the opposing folding jaw 4. After relieving the pressure cylinder 10, the clinching punch 11 is moved back with the aid of the compression spring 12 and the folding jaws 4, 6 can then be moved apart to remove the sheets that are firmly connected to one another. If necessary, the swivel flap 1 can additionally be swiveled so far that the finished component can be removed from the folding bed 5.
Bei der alternativen Ausführungsform nach den Figuren 3 und 4 sind die Bezugszeichen der gegenüber den Figuren 1 und 2 geänderten aber funktionsgleichen Elemente jeweils mit einem Strich versehen. Bei dieser Ausführungsform wird zur Betätigung des Clinchstempels 11 ' auf den Kipphebel 7 nach den Figuren 1 und 2 verzichtet. Stattdessen ist an dem Schieber 3', mit dem der Falzbacken 4' betätigt wird, die aus einem Druckzylinder bestehende Antriebseinheit 10' angeordnet. Diese Antriebseinheit 10' stützt sich an dem Ansatz 17 des Schiebers 3' ab und drückt beim Clinchen den Clinchstempel 11 ' in die Clinchmatrize 13'. Der Clinchstempel 11 ' ist in einer Bohrung 19 in einem Ansatz 18 des Schiebers 3' und in der Falzbacke 4' geführt. Die Clinchmatrize 13' ist in der Falzbacke 6' angeordnet. Nach Beendigung des Clinchvorganges wird der Clinchstempel 11 ' mit Hilfe der Druckfeder 12' in seine Ausgangsposition zurückgedrückt. In the alternative embodiment according to FIGS. 3 and 4, the reference numerals of the elements which have been modified but have the same function as in FIGS. 1 and 2 are each provided with a dash. In this embodiment, the rocker arm 7 according to FIGS. 1 and 2 is dispensed with for actuating the clinching punch 11 '. Instead, on the slide 3 ', with which the jaw 4' is actuated, the one Printing cylinder existing drive unit 10 'arranged. This drive unit 10 'is supported on the shoulder 17 of the slide 3' and presses the clinching punch 11 'into the clinching die 13' during clinching. The clinching punch 11 'is guided in a bore 19 in an extension 18 of the slide 3' and in the jaw 4 '. The clinching die 13 'is arranged in the jaw 6'. After the clinching process has ended, the clinching punch 11 'is pushed back into its starting position with the aid of the compression spring 12'.
Bezugszeichenliste:Reference symbol list:
1 Schwenkklappe der Falzvorrichtung1 folding flap of the folder
2 Führung vom Schieber 32 Guide from the slide 3
3, 3' Schieber3, 3 'slider
4, 4' Falzbacken 14, 4 'folding jaws 1
5 Falzbett5 folding bed
6, 6' Falzbacken 26, 6 'jaws 2
7 Kipphebel7 rocker arms
8 Gabelkopf8 clevis
9 Lagerstelle9 depository
10, 10' Antriebseinheit, Druckzylinder10, 10 'drive unit, pressure cylinder
11 , ι r Clinchstempel11, clinch stamp
12, 12' Druckfeder12, 12 'compression spring
13, 13' Clinchmatrize13, 13 'clinching matrix
14 Falzzylinder14 folding cylinders
15 Blech15 sheet
16 Blech16 sheet
17 Ansatz an 3'17 approach to 3 '
18 Ansatz an 3'18 approach to 3 '
19 Bohrung in 18 19 hole in 18

Claims

Patentansprüche: Claims:
1. Verfahren zum Falzen von auf einem Falzbett aufliegenden Blechen, insbesondere Karosserieblechen im Automobilbau, wobei über eine Anzahl sich auf das Falzbett zu bewegender Falzbacken ein oder mehrere Bleche in ihrem Randbereich umgebogen und auf den Rand eines anderen Bleches gepresst werden, dadurch gekennzeichnet, dass nach dem Falzen vor dem Öffnen der Falzbacken und des Falzbettes die zusammengedrückten Ränder der Bleche durch Durchsetzfügen formschlüssig miteinander verbunden werden.1. A method for folding sheets resting on a folding bed, in particular body sheets in automobile construction, one or more sheets being bent over their number of folding jaws to be moved onto the folding bed in their edge region and pressed onto the edge of another sheet, characterized in that After folding before opening the folding jaws and the folding bed, the compressed edges of the sheets are positively connected to one another by clinching.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass vor dem Falzen die zusammenzupressenden Ränder der Bleche mit Kleber beaufschlagt werden, der nach dem Durchsetzfügen aushärtet.2. The method according to claim 1, characterized in that the edges of the metal sheets to be compressed are applied with adhesive before the folding, which hardens after the clinching.
3. Vorrichtung zum Falzen von auf einem Falzbett aufliegenden Metallblechen, insbesondere Karosserieblechen im Automobilbau zur Durchführung des Verfahrens nach den vorhergehenden Ansprüchen bestehend aus einem Falzbett und Falzbacken, von denen mindestens eine Falzbacke zum Umbiegen des Blechrandes und Anpressen gegen den Rand eines anderen Bleches linear verschiebbar und/oder verschwenkbar ist, dadurch gekennzeichnet, dass zum Durchsetzfügen in der einen Falzbacke (4, 6') eine Clinchmatrize (13, 13') und in der gegenüberliegenden Falzbacke (6, 4') ein gegenüber den Falzbacken (4, 4', 6, 6') beweglicher Clinchstempel (11 , 11') angeordnet ist.3. Device for folding metal sheets resting on a folding bed, in particular body sheets in automobile construction for carrying out the method according to the preceding claims, consisting of a folding bed and folding jaws, of which at least one folding jaw can be displaced linearly for bending the sheet metal edge and pressing against the edge of another sheet metal and / or pivotable, characterized in that for clinching in one jaw (4, 6 ') a clinching die (13, 13') and in the opposing jaw (6, 4 ') opposite the jaws (4, 4') , 6, 6 ') movable clinching punch (11, 11') is arranged.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Clinchstempel (11 ) über einen Kipphebel (7) mit einer am gegenüberliegenden Ende angreifenden Antriebseinheit (10) für den4. The device according to claim 3, characterized in that the clinching punch (11) via a rocker arm (7) with a drive unit (10) acting on the opposite end for the
Clinchstempel (11 ) verbunden ist. Clinch stamp (11) is connected.
5. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass die beiden Falzbacken (4, 4', 6, 6') an einer gemeinsamen Schwenkklappe (1 ) oder einer linearen Verschiebeeinrichtung angeordnet sind.5. Apparatus according to claim 3 or 4, characterized in that the two jaws (4, 4 ', 6, 6') are arranged on a common swivel flap (1) or a linear displacement device.
6. Vorrichtung nach einem der Ansprüche 3, 4 oder 5, dadurch gekennzeichnet, dass der Clinchstempel (11 ') mit einer Antriebseinheit (10') verbunden ist, die sich in einem Schieber (3') abstützt, der zur6. Device according to one of claims 3, 4 or 5, characterized in that the clinching punch (11 ') is connected to a drive unit (10') which is supported in a slide (3 ') which for
Verstellung einer Falzbacke (6') dient. Adjustment of a jaw (6 ') is used.
PCT/EP1999/007236 1998-10-07 1999-09-30 Method for folding sheet metal on a folding bed and device for carrying out said method WO2000020144A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99948904A EP1124655A1 (en) 1998-10-07 1999-09-30 Method for folding sheet metal on a folding bed and device for carrying out said method
BR9914282-1A BR9914282A (en) 1998-10-07 1999-09-30 Process for folding sheets seated on a folding bed and device for carrying out the process

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19846154 1998-10-07
DE19846154.2 1998-10-07
DE19849676.1 1998-10-28
DE19849676A DE19849676C1 (en) 1998-10-07 1998-10-28 Method for folded connection of metal panels has a bonder applied to the edges prior to folding and with a clinch process to secure the folds before releasing the tool grip

Publications (1)

Publication Number Publication Date
WO2000020144A1 true WO2000020144A1 (en) 2000-04-13

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ID=26049354

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PCT/EP1999/007236 WO2000020144A1 (en) 1998-10-07 1999-09-30 Method for folding sheet metal on a folding bed and device for carrying out said method

Country Status (3)

Country Link
EP (1) EP1124655A1 (en)
BR (1) BR9914282A (en)
WO (1) WO2000020144A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827595A (en) * 1985-12-05 1989-05-09 Utica Engineering Company Method for hemming overlapped sheet material
DE4330683C2 (en) * 1993-09-10 1995-07-27 Audi Ag Folding device
JPH07232220A (en) * 1994-02-25 1995-09-05 Kanto Auto Works Ltd Hemming machine
US5752304A (en) * 1995-08-15 1998-05-19 Tesco Engineering, Inc. Closure panel hemming die

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827595A (en) * 1985-12-05 1989-05-09 Utica Engineering Company Method for hemming overlapped sheet material
DE4330683C2 (en) * 1993-09-10 1995-07-27 Audi Ag Folding device
JPH07232220A (en) * 1994-02-25 1995-09-05 Kanto Auto Works Ltd Hemming machine
US5752304A (en) * 1995-08-15 1998-05-19 Tesco Engineering, Inc. Closure panel hemming die

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 01 31 January 1996 (1996-01-31) *

Also Published As

Publication number Publication date
EP1124655A1 (en) 2001-08-22
BR9914282A (en) 2001-06-19

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