EP1420908A1 - Roller folding head and method for folding a flange - Google Patents

Roller folding head and method for folding a flange

Info

Publication number
EP1420908A1
EP1420908A1 EP02798687A EP02798687A EP1420908A1 EP 1420908 A1 EP1420908 A1 EP 1420908A1 EP 02798687 A EP02798687 A EP 02798687A EP 02798687 A EP02798687 A EP 02798687A EP 1420908 A1 EP1420908 A1 EP 1420908A1
Authority
EP
European Patent Office
Prior art keywords
roller
rollers
counter
flange
folding
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
Application number
EP02798687A
Other languages
German (de)
French (fr)
Other versions
EP1420908B1 (en
Inventor
Ewald Quell
Manfred Hohmann
Marc Burzlaff
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.)
FFT EDAG Produktionssysteme GmbH and Co KG
Original Assignee
Edag Engineering and Design 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
Application filed by Edag Engineering and Design AG filed Critical Edag Engineering and Design AG
Publication of EP1420908A1 publication Critical patent/EP1420908A1/en
Application granted granted Critical
Publication of EP1420908B1 publication Critical patent/EP1420908B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49915—Overedge assembling of seated part
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/53787—Binding or covering
    • Y10T29/53791—Edge binding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53996—Means to assemble or disassemble by deforming

Definitions

  • the invention relates on the one hand to a roller fold head.
  • roller fold heads which are coupled to and guided by a robot arm, are e.g. used in the automotive industry to join sheets together by folding operations.
  • One area of application is e.g. the connection of the frame of a sunroof with the edge of an opening in the roof of a vehicle.
  • a suitable roll folding head must be adapted to the available space and must not introduce any forces into the vehicle body when folding. In addition, as few change operations as possible should occur.
  • the invention provides a roller fold head for attachment to a robot arm with two pairs of rollers, each roller pair consisting of a pressure roller and a counter roller, which work together to bend a flange along a fold line by a certain angle and with a base body and a carriage movable thereon, the pressure rollers being rotatably mounted on the carriage.
  • the two flanges which are to be connected to each other by the folding process, are initially parallel to one another, with one projecting above the other.
  • the protruding section of one flange is gradually flanged by 180 ° around the other flange in several steps.
  • the pressure roller of the first pair of rollers has a conically widening fold section which is pressed against the protruding section and bends it about 45 °. So that the counter roller of this pair of rollers can be guided behind the bent section, it is rotatably mounted on a further carriage that can be moved relative to the base body.
  • the counter roller of the second pair of rollers takes over the flanging by a further 45 ° and therefore does not have to be held on the base body in such a way that it cannot be moved. Rather, it is mounted immovably on the base body.
  • the two slides are preferably arranged on the base body such that they can be moved vertically relative to one another. This results in a compact construction of the roller fold head.
  • Each pair of rollers can be formed by a pressure roller and a counter roller, which are only assigned to this pair. With 4 pairs of rollers, this results in 8 individual rollers.
  • a pressure roller can be assigned to different counter rollers to form a pair of rollers. So the system from pairs of roles z. B. consist of two pressure rollers and four counter rollers, wherein one of the pressure rollers interacts with three of the counter rollers. These counter rollers are preferably coupled to a turret head (24) connected to the base body (2).
  • the invention relates to a method for folding a flange in four steps, at least three different pairs of rollers being used and a bend of 180 ° being achieved.
  • the first pair of rollers can be used for both the first and the final fourth folding step.
  • two approaches are possible.
  • two roller fold heads with different pairs of rollers can be used.
  • a single roller fold head can be used, in which the counter roller of a pair of rollers can be exchanged by means of a changing device, so that a total of four different roller pairs can be represented.
  • Figure 1 shows a first embodiment of a roller fold head 1.
  • This consists of a U-shaped base body 2.
  • a flange plate 3 is arranged on one leg of the base body 2 for attachment to a robot arm.
  • a carrier 4 is arranged on a first pneumatically movable carriage 5.
  • the T-shaped support 4 has two arms 6, 7, with a first pressure roller 8 on one arm 6 and a second pressure roller 9 on the other arm 7. With the two pressure rollers 8, 9 one counter roller 10, 11 each act together.
  • the first counter-roller 10, which interacts with the first pressure roller 8, is mounted on a further slide 12 which is movably held on the base body 2, the two slides 5, 12 enclosing a right angle.
  • the second counter roller 11 is rotatably mounted directly at the end of one leg of the base body 2.
  • a force absorption roller 13 is also provided on the base body 2.
  • a second roller fold head is used, which corresponds to the roller fold head shown in FIG.
  • the second roller fold head carries a third and a fourth pressure roller 20, 21 as well as a third and fourth counter roller 22, 23, although the fourth counter roller 23 is held immovably on the base body 2.
  • the further carriage 12 is replaced by a wedge-shaped holder.
  • a roll fold head can also be used.
  • the second, third and fourth counter-rollers (11, 22, 23) are arranged on a turret head 24, which forms a changing device, on the base body 2, the second pressure roller 9 depending on the position of the turret head 24 with one of the three Counter rollers (11, 22, 23) cooperate so that a second, third or fourth pair of rollers is formed.
  • FIGS. 3a to 3d show the connection of a roof 30 to the frame 31 of a sliding roof. An opening is made in the roof 30, the opening edge becoming one Flange 32 is set up, which extends approximately perpendicular to the surface of the roof 30.
  • the frame 31 ends in a web 33 which runs parallel to the flange 32.
  • the flange 32 is higher than the web 33, as a result of which a connection can be made between the roof 30 and the frame 31 by bending the projecting part of the flange 32 around the web 33 by 180 °. This takes place in four folding operations, which are shown gradually in FIGS. 3a to 3d. In each step, the protruding part of the flange 32 is bent by approximately 45 °. A pair of rollers is provided for each step.
  • the first pressure roller 8 interacts with the first counter roller 10.
  • the first pressure roller 8 has a conically expanding fold section 34, the taper of which corresponds to the intended bending of the flange 32.
  • a cylindrical section of the first pressure roller 8 abuts the flange 32.
  • the first counter roller 10 runs along the inside of the web 33. No forces are thus introduced into the frame 31 or into the roof 30.
  • the second pressure roller 9 works together with a second counter roller 11.
  • the second pressure roller 9 is a cylinder without a conical section.
  • a fourth pressure roller 21 or a fourth counter roller 23 is used; the fourth pair of rollers is either formed on a second roller fold head according to FIG. 1 or is produced by rotating the turret head 24 according to FIG. 2, the fourth pressure roller 21 again being represented by the second pressure roller 9.
  • the individual positions are achieved by always rotating the entire roller folding head 1 and guiding the carrier 4 into the respective folding position by means of the slide 5.
  • the method is thus also characterized in that the flanging takes place in four steps, at least in the first step the two flanges being pressed against one another by a pressure roller and a counter roller and a conical section of the pressure roller providing partial flanging, and in the following steps the further partial flanges are generated by the correspondingly aligned counter-rollers.
  • the pressure roller essentially has the task of guiding the roller fold head on the flange, it can be a single cylindrical body which rests against the portion of the flange that is not to be flanged and rolls on it.
  • the counter-rollers, each with a conical section are aligned according to the desired progress in flanging to the flange. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Press Drives And Press Lines (AREA)
  • Body Structure For Vehicles (AREA)
  • Manipulator (AREA)

Abstract

A roller folding head is disclosed. Roller folding heads are used, for instance, when fixing the frame of a sliding roof in an opening in the roof of a vehicle. In order to do this quickly and automatically, the roller folding head is provided with at least two pairs of rollers, each pair of rollers consisting of a pressure roller and a counter-roller which interact in order to bend a flange along a folding line at a specific angle. The folding process is carried out in several stages, one flange being crimped around another flange in a series of partial steps at an angle of 180°. One pair of rollers is provided for each step, at least two thereof being arranged on a roller folding head.

Description

Beschreibung description
Rollfalzkopf und Verfahren zum Falzen eines FlanschesRolled folding head and method for folding a flange
Die Erfindung bezieht sich zum einen auf einen Rollfalzkopf.The invention relates on the one hand to a roller fold head.
Derartige Rollfalzköpfe, die mit einem Roboterarm gekoppelt sind und von diesem geführt werden, werden z.B. in der Automobilindustrie eingesetzt, um Bleche durch Falzoperationen miteinander zu verbinden. Ein Einsatzgebiet ist z.B. die Verbindung des Rahmens eines Schiebedaches mit dem Rand einer Öffnung im Dach eines Fahrzeuges.Such roller fold heads, which are coupled to and guided by a robot arm, are e.g. used in the automotive industry to join sheets together by folding operations. One area of application is e.g. the connection of the frame of a sunroof with the edge of an opening in the roof of a vehicle.
Ein hierfür geeigneter Rollfalzkopf muss an die jeweils vorliegenden Platzverhältnissen angepasst sein und darf beim Falzen keine Kräfte in die Fahrzeugkarosserie einleiten. Außerdem sollen möglichst wenig Wechseloperationen auftreten.A suitable roll folding head must be adapted to the available space and must not introduce any forces into the vehicle body when folding. In addition, as few change operations as possible should occur.
Die Erfindung sieht zur Lösung des Problems einen Rollfalzkopf zum Befestigen an einem Roboterarm mit zwei Paar Rollen, wobei jedes Rollenpaar, aus einer Andrück- und einer Gegenrolle besteht, die zusammenwirken, um einen Flansch entlang einer Falzlinie um einen bestimmten Winkel zu biegen, und mit einem Grundkörper und einem daran verfahrbaren Schlitten, wobei die Andrückrollen drehbar am Schlitten gelagert sind.In order to solve the problem, the invention provides a roller fold head for attachment to a robot arm with two pairs of rollers, each roller pair consisting of a pressure roller and a counter roller, which work together to bend a flange along a fold line by a certain angle and with a base body and a carriage movable thereon, the pressure rollers being rotatably mounted on the carriage.
Da demnach an dem Rollfalzkopf zwei Paar Rollen angeordnet sind, lassen sich zumindest zwei aufeinander folgende Falzoperationen durchführen. Mittels des Schlittens, an dem die Andrückrollen befestigt sind, werden diese in die jeweilige Arbeitsposition verfahren.Accordingly, since two pairs of rollers are arranged on the roller fold head, at least two successive folding operations can be carried out. By means of the sled to which the pressure rollers are attached, they are moved into the respective working position.
Die beiden Flansche, die durch den Falzvorgang miteinander verbunden werden sollen, stehen zunächst parallel zueinander, wobei der eine den anderen überragt. Der überstehende Abschnitt des einen Flansches wird in mehreren Schritten nach und nach um 180° um den anderen Flansch umgebördelt. Zum Durchführen des ersten Schrittes weist die Andrückrolle des ersten Rollenpaares einen sich konisch aufweitenden Falzabschnitt auf, der gegen den überstehenden Abschnitt gedrückt wird und diesen um etwa 45° umbiegt. Damit die Gegenrolle dieses Rollenpaares hinter den umgebogenen Abschnitt geführt werden kann, ist sie an einem weiteren, gegenüber dem Grundkörper verfahrbaren Schlitten drehbar gelagert. Die Gegenrolle des zweiten Rollenpaares übernimmt die Umbördelung um weitere 45° und braucht daher nicht verfahrbar am Grundkörper gehalten zu werden. Vielmehr ist sie) unverschiebbar am Grundkörper gelagert.The two flanges, which are to be connected to each other by the folding process, are initially parallel to one another, with one projecting above the other. The protruding section of one flange is gradually flanged by 180 ° around the other flange in several steps. To carry out the first step, the pressure roller of the first pair of rollers has a conically widening fold section which is pressed against the protruding section and bends it about 45 °. So that the counter roller of this pair of rollers can be guided behind the bent section, it is rotatably mounted on a further carriage that can be moved relative to the base body. The counter roller of the second pair of rollers takes over the flanging by a further 45 ° and therefore does not have to be held on the base body in such a way that it cannot be moved. Rather, it is mounted immovably on the base body.
Vorzugsweise sind die beiden Schlitten senkrecht gegeneinander verfahrbar am Grundkörper angeordnet. Dadurch ergibt sich ein kompakter Aufbau des Rollfalzkopfes.The two slides are preferably arranged on the base body such that they can be moved vertically relative to one another. This results in a compact construction of the roller fold head.
Zwar kann jedes Rollenpaar von jeweils einer Andrückrolle und einer Gegenrolle gebildet sein, die nur diesem Paar zugeordnet sind.. Bei 4 Rollenpaaren ergeben sich dadurch 8 Einzelrollen. Um den Aufwand an Rollen zu verringern, ist vorgesehen , dass eine Andrückrolle unterschiedlichen Gegenrollen zur Bildung jeweils eines Rollenpaares zuordenbar ist. So kann das System aus Rollenpaaren z. B. aus zwei Andrückrollen und vier Gegenrollen bestehen, wobei eine der Andrückrollen nacheinander mit drei der Gegenrollen zusammenwirkt. Vorzugsweise sind diese Gegenrollen mit einem mit dem Grundkörper (2) verbundenen Revolverkopf (24) gekoppelt.Each pair of rollers can be formed by a pressure roller and a counter roller, which are only assigned to this pair. With 4 pairs of rollers, this results in 8 individual rollers. In order to reduce the cost of rollers, it is provided that a pressure roller can be assigned to different counter rollers to form a pair of rollers. So the system from pairs of roles z. B. consist of two pressure rollers and four counter rollers, wherein one of the pressure rollers interacts with three of the counter rollers. These counter rollers are preferably coupled to a turret head (24) connected to the base body (2).
Zum anderen bezieht sich die Erfindung auf ein Verfahren zum Falzen eines Flansches in vier Schritten, wobei mindestens drei unterschiedliche Rollenpaare zum Einsatz kommen und eine Umbiegung von 180° erzielt wird.On the other hand, the invention relates to a method for folding a flange in four steps, at least three different pairs of rollers being used and a bend of 180 ° being achieved.
Wie im Ausführungsbeispiel näher erläutert werden soll, lässt sich nämlich das erste Rollenpaar durchaus sowohl für den ersten als auch für den abschließenden vierten Falzschritt nutzen. Prinzipiell sind zwei Vorgehensweisen möglich. Zum einen können zwei Rollfalzköpfe mit unterschiedlichen Rollenpaaren zum Einsatz kommen. Zum anderen kann ein einziger Rollfalzkopf zum Einsatz kommen, bei dem die Gegenrolle eines Rollenpaares mittels einer Wechselvorrichtung austauschbar ist, so dass insgesamt vier unterschiedliche Rollenpaarungen darstellbar sind.As will be explained in more detail in the exemplary embodiment, the first pair of rollers can be used for both the first and the final fourth folding step. In principle, two approaches are possible. On the one hand, two roller fold heads with different pairs of rollers can be used. On the other hand, a single roller fold head can be used, in which the counter roller of a pair of rollers can be exchanged by means of a changing device, so that a total of four different roller pairs can be represented.
Die Erfindung wird anhand der in den Figuren dargestellten Ausführungsbeispielen näher erläutert.The invention is explained in more detail using the exemplary embodiments shown in the figures.
Figur 1 zeigt eine erste Ausführung eines Rollfalzkopfes 1. Dieser besteht aus einem U-förmigen Grundkörper 2. An einem Schenkel des Grundkörpers 2 ist eine Flanschplatte 3 zum Befestigen an einem Roboterarm angeordnet. An der der Flanschplatte 3 gegenüberliegenden Seite des Grundkörpers 2 ist ein Träger 4 an einem ersten pneumatisch verfahrbaren Schlitten 5 angeordnet.Figure 1 shows a first embodiment of a roller fold head 1. This consists of a U-shaped base body 2. A flange plate 3 is arranged on one leg of the base body 2 for attachment to a robot arm. On the side of the base body 2 opposite the flange plate 3, a carrier 4 is arranged on a first pneumatically movable carriage 5.
Der T-förmige Träger 4 hat zwei Arme 6, 7, wobei sich auf einem Arm 6 eine erste Andrückrolle 8 und auf dem anderen Arm 7 eine zweite Andrückrolle 9 befindet. Mit den beiden Andrückrollen 8, 9 wirken je eine Gegenrolle 10, 11 zu- sammen. Die erste Gegenrolle 10, die mit der ersten Andrückrolle 8 zusammenwirkt, ist an einem weiteren Schlitten 12 gelagert, der verfahrbar am Grundkörper 2 gehalten ist, wobei die beiden Schlitten 5, 12 einen rechten Winkel einschließen. Die zweite Gegenrolle 11 ist unmittelbar am Ende eines Schenkels des Grundkörpers 2 drehbar gelagert. Am Grundkörper 2 ist desweiteren eine Kraftaufnahmerolle 13 vorgesehen.The T-shaped support 4 has two arms 6, 7, with a first pressure roller 8 on one arm 6 and a second pressure roller 9 on the other arm 7. With the two pressure rollers 8, 9 one counter roller 10, 11 each act together. The first counter-roller 10, which interacts with the first pressure roller 8, is mounted on a further slide 12 which is movably held on the base body 2, the two slides 5, 12 enclosing a right angle. The second counter roller 11 is rotatably mounted directly at the end of one leg of the base body 2. A force absorption roller 13 is also provided on the base body 2.
Für das weiter unten beschriebene Verfahren zum Falzen eines Flansches wird noch ein zweiter Rollfalzkopf eingesetzt, der dem in der Figur 1 dargestellten Rollfalzkopf entspricht. Der zweite Rollfalzkopf trägt eine dritte und eine vierte Andrückrolle 20, 21 sowie eine dritte und vierte Gegenrolle 22, 23, wobei allerdings die vierte Gegenrolle 23 unverschiebbar am Grundkörper 2 gehalten wird. Der weitere Schlitten 12 ist dazu durch einen keilförmigen Halter ersetzt.For the method for folding a flange described further below, a second roller fold head is used, which corresponds to the roller fold head shown in FIG. The second roller fold head carries a third and a fourth pressure roller 20, 21 as well as a third and fourth counter roller 22, 23, although the fourth counter roller 23 is held immovably on the base body 2. The further carriage 12 is replaced by a wedge-shaped holder.
Anstelle von zwei Rollfalzköpfen kann auch ein Rollfalzkopf gemäß Figur 2 eingesetzt werden. Bei dieser Ausführung sind die zweite, die dritte und die vierte Gegenrolle (11, 22, 23) an einem Revolverköpf 24, der eine Wechseleinrichtung bildet, am Grundkörper 2 angeordnet, wobei die zweite Andrückrolle 9 je nach Stellung des Revolverkopfes 24 mit einem der drei Gegenrollen (11, 22, 23) zusammenarbeitet, so dass ein zweites, drittes bzw. viertes Rollenpaar gebildet wird.Instead of two roll fold heads, a roll fold head according to FIG. 2 can also be used. In this embodiment, the second, third and fourth counter-rollers (11, 22, 23) are arranged on a turret head 24, which forms a changing device, on the base body 2, the second pressure roller 9 depending on the position of the turret head 24 with one of the three Counter rollers (11, 22, 23) cooperate so that a second, third or fourth pair of rollers is formed.
Zur Verdeutlichung der Arbeitsweise der beiden Rollfalzköpfe gemäß Fig. 1 bzw. des Rollfalzkopfes mit dem Revolverkopf 24 gemäß Fig. 2 wird auf die Figuren 3a bis 3d verwiesen. Diese zeigen die Verbindung eines Daches 30 mit dem Rahmen 31 eines Schiebedaches. Im Dach 30 ist eine Öffnung eingelassen, wobei der Öffnungsrand zu einem Flansch 32 aufgestellt ist, der in etwa senkrecht zur Fläche des Daches 30 verläuft.To clarify the mode of operation of the two roller fold heads according to FIG. 1 or of the roller fold head with the turret head 24 according to FIG. 2, reference is made to FIGS. 3a to 3d. These show the connection of a roof 30 to the frame 31 of a sliding roof. An opening is made in the roof 30, the opening edge becoming one Flange 32 is set up, which extends approximately perpendicular to the surface of the roof 30.
Der Rahmen 31 endet in einem Steg 33, der parallel zum Flansch 32 verläuft. Der Flansch 32 ist höher als der Steg 33, wodurch eine Verbindung zwischen Dach 30 und Rahmen 31 hergestellt werden kann, indem der überstehende Teil des Flansches 32 um 180° um den Steg 33 herumgebogen wird. Dies erfolgt in vier Falzoperationen, die in den Figuren 3a bis 3d nach und nach dargestellt sind. Bei jedem Schritt wird der überstehende Teil des Flansches 32 um ca. 45° umgebogen. Für jeden Schritt ist eine Rollenpaarung vorgesehen.The frame 31 ends in a web 33 which runs parallel to the flange 32. The flange 32 is higher than the web 33, as a result of which a connection can be made between the roof 30 and the frame 31 by bending the projecting part of the flange 32 around the web 33 by 180 °. This takes place in four folding operations, which are shown gradually in FIGS. 3a to 3d. In each step, the protruding part of the flange 32 is bent by approximately 45 °. A pair of rollers is provided for each step.
Im ersten Schritt gemäß Figur 3a wirkt die erste Andrückrolle 8 mit der ersten Gegenrolle 10 zusammen. Die erste Andrückrolle 8 weist einen konisch sich aufweitenden Falzabschnitt 34 auf, dessen Konizität der beabsichtigten Umbiegung des Flansches 32 entspricht. Ein zylindrischer Abschnitt der ersten Andrückrolle 8 liegt am Flansch 32 an. Um die dadurch in die Karosserie eingeleiteten Kräfte abstützen zu können, läuft die erste Gegenrolle 10 innen am Steg 33 entlang. Es werden somit keine Kräfte in den Rahmen 31 bzw. in das Dach 30 eingeleitet.In the first step according to FIG. 3a, the first pressure roller 8 interacts with the first counter roller 10. The first pressure roller 8 has a conically expanding fold section 34, the taper of which corresponds to the intended bending of the flange 32. A cylindrical section of the first pressure roller 8 abuts the flange 32. In order to be able to support the forces introduced thereby into the body, the first counter roller 10 runs along the inside of the web 33. No forces are thus introduced into the frame 31 or into the roof 30.
Im zweiten Schritt gemäß Figur 3b arbeitet die zweite Andrückrolle 9 mit einer zweiten Gegenrolle 11 zusammen. Die zweite Andrückrolle 9 ist ein Zylinder ohne konischen Abschnitt. Die leicht schräg gestellte zweite Gegenrolle 11, auch Falzrolle genannt, drückt den Flansch 32 um weitere 45° um.In the second step according to FIG. 3b, the second pressure roller 9 works together with a second counter roller 11. The second pressure roller 9 is a cylinder without a conical section. The slightly inclined second counter roller 11, also called folding roller, presses the flange 32 by a further 45 °.
Im dritten Schritt gemäß Figur 3c kommt entweder ein zweiter Rollfalzkopf zum Einsatz oder ein Rollfalzkopf gemäß Figur 2, wobei der Revolverkopf 24 allerdings um eine Stellung weitergedreht ist, so dass nun die dritte Gegenrolle 22 zum Einsatz kommt. Bei dieser Ausführung ist die dritte Andrückrolle 20 identisch mit der zweiten Andrückrolle 9.In the third step according to FIG. 3c, either a second roll fold head or a roll fold head according to FIG. 2 is used, the turret head 24, however, being rotated one position further, so that now the third Counter roller 22 is used. In this embodiment, the third pressure roller 20 is identical to the second pressure roller 9.
Bei der abschließenden Operation gemäß Figur 3d kommt eine vierte Andrückrolle 21 bzw. eine vierte Gegenrolle 23 zum Einsatz; die vierte Rollenpaarung ist entweder gemäß Fig. 1 an einem zweiten Rollfalzkopf ausgebildet oder wird durch Drehung des Revolverkopfes 24 gemäß Fig. 2 erzeugt, wobei die vierte Andrückrolle 21 wiederum durch die zweite Andrückrolle 9 dargestellt ist.In the final operation according to FIG. 3d, a fourth pressure roller 21 or a fourth counter roller 23 is used; the fourth pair of rollers is either formed on a second roller fold head according to FIG. 1 or is produced by rotating the turret head 24 according to FIG. 2, the fourth pressure roller 21 again being represented by the second pressure roller 9.
Die einzelnen Positionen werden erreicht, indem stets der gesamte Rollfalzkopf 1 gedreht wird und der Träger 4 mittels des Schlittens 5 in die jeweilige Falzposition geführt wird.The individual positions are achieved by always rotating the entire roller folding head 1 and guiding the carrier 4 into the respective folding position by means of the slide 5.
Das Verfahren ist somit auch dadurch gekennzeichnet, dass die Umbördelung in vier Schritten erfolgt, wobei zumindest im ersten Schritt die beiden Flansche durch eine Andrückrolle und eine Gegenrolle gegeneinander gedrückt sind und ein konisch verlaufender Abschnitt der Andrückrolle eine Teilumbördelung besorgt, und dass in den folgenden Schritten die weiteren Teilumbördelungen durch die jeweils entsprechend ausgerichteten Gegenrollen erzeugt sind. Da in den weiteren Schritten die Andrückrolle im Wesentlichen die Aufgabe hat, den Rollfalzkopf am Flansch zu führen, kann es sich um einen einzigen zylindrischen Körper handeln, der an dem nicht umzubördelnden Abschnitt des Flansches anliegt und daran abrollt. Die jeweils mit einem konisch verlaufenden Abschnitt versehenen Gegenrollen werden jeweils entsprechend dem gewünschten Fortschritt bei der Umbördelung zum Flansch ausgerichtet. BezugszeichenlisteThe method is thus also characterized in that the flanging takes place in four steps, at least in the first step the two flanges being pressed against one another by a pressure roller and a counter roller and a conical section of the pressure roller providing partial flanging, and in the following steps the further partial flanges are generated by the correspondingly aligned counter-rollers. Since in the further steps the pressure roller essentially has the task of guiding the roller fold head on the flange, it can be a single cylindrical body which rests against the portion of the flange that is not to be flanged and rolls on it. The counter-rollers, each with a conical section, are aligned according to the desired progress in flanging to the flange. LIST OF REFERENCE NUMBERS
1 Rollfalzkopf1 roller fold head
2 Grundkörper2 basic bodies
3 Flanschplatte3 flange plate
4 Träger4 carriers
5 Schlitten5 sledges
6 Arm6 arm
7 Arm7 arm
8 erste Andrückrolle8 first pressure roller
9 zweite Andrückrolle 10 erste Gegenrolle9 second pressure roller 10 first counter roller
11 zweite Gegenrolle11 second counter role
12 Schlitten12 sledges
13 Kraftaufnahmerolle13 force absorption roller
20 dritte Andrückrolle20 third pressure roller
21 vierte Andrückrolle21 fourth pressure roller
22 dritte Gegenrolle22 third counter role
23 vierte Gegenrolle23 fourth counter role
24 Revolverkopf24 turret
30 Dach30 roof
31 Rahmen31 frames
32 Flansch32 flange
33 Steg33 footbridge
34 Falzabschnitt 34 folding section

Claims

Patentansprüche claims
1. Rollfalzkopf zum Befestigen an einem Roboterarm mit zwei Paar Rollen (8, 10; 9, 11 oder 20, 22; 21, 23), wobei jedes Rollenpaar (8, 10; 9, 11 oder 20, 22; 21, 23), aus einer Andrück- und einer Gegenrolle besteht, die zusammenwirken, um einen Flansch (32) entlang einer Falzlinie um einen bestimmten Winkel zu biegen, und mit einem Grundkörper (2) und einem daran verfahrbaren Schlitten (5), wobei die Andrückrollen (8, 9 oder 20, 21) drehbar am Schlitten (5) gelagert sind.1. Roller fold head for attachment to a robot arm with two pairs of rollers (8, 10; 9, 11 or 20, 22; 21, 23), each pair of rollers (8, 10; 9, 11 or 20, 22; 21, 23) , consists of a pressure roller and a counter roller, which cooperate to bend a flange (32) along a fold line by a certain angle, and with a base body (2) and a slide (5) which can be moved thereon, the pressure rollers (8 , 9 or 20, 21) are rotatably mounted on the carriage (5).
2. Rollfalzkopf nach Anspruch 1, dadurch gekennzeichnet, dass die zweite Gegenrolle (11) des einen Rollenpaares (9, 11) unverschiebbar am Grundkörper (2) gelagert ist und die erste Gegenrollen (10) des anderen Rollenpaares (8, 16) an einem weiteren, gegenüber dem Grundkörper (2) verfahrbaren Schlitten (12) drehbar gelagert ist.2. Roll folding head according to claim 1, characterized in that the second counter roller (11) of one pair of rollers (9, 11) is mounted immovably on the base body (2) and the first counter rollers (10) of the other pair of rollers (8, 16) on one further carriage (12) which is movable relative to the base body (2) is rotatably mounted.
3. Rollfalzkopf nach Anspruch 1, dadurch gekennzeichnet, dass beide Gegenrollen (10, 11) am Grundkörper (2) in unverschiebbaren Lagern drehbar gelagert sind.3. A roller hemming head according to claim 1, characterized in that both counter rollers (10, 11) on the base body (2) are rotatably mounted in non-displaceable bearings.
4. Rollfalzkopf nach Anspruch 2, dadurch gekennzeichnet, dass die beiden Schlitten (5, 12) senkrecht gegeneinander verfahrbar am Grundkörper (2) angeordnet sind.4. A roller hemming head according to claim 2, characterized in that the two carriages (5, 12) are arranged on the base body (2) such that they can be moved vertically relative to one another.
5. Rollfalzkopf nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Andrückrolle (9) unterschiedlichen Gegenrollen (11, 22, 23) zuordenbar ist.5. Rolling fold head according to one of the preceding claims, characterized in that a pressure roller (9) different counter rollers (11, 22, 23) can be assigned.
6. Rollfalzkopf nach Anspruch 5, dadurch gekennzeichnet, dass die unterschiedlichen Gegenrollen (11, 22, 23) mit einer mit dem Grundkörper (2) verbundenem Revolverkopf (24) gekoppelt sind. 6. A roller hemming head according to claim 5, characterized in that the different counter rollers (11, 22, 23) are coupled to a turret head (24) connected to the base body (2).
7. Verfahren zum Falzen eines Flansches um einen anderen parallel dazu stehenden Flansch um 180°, dadurch gekennzeichnet, dass die Umbördelung in vier Schritten erfolgt, wobei zumindest im ersten Schritt die beiden Flansche durch eine Andrückrolle und eine Gegenrolle gegeneinander gedrückt sind und ein konisch verlaufender Abschnitt der Andrückrolle eine Teilumbördelung besorgt, und dass in den folgenden Schritten die weiteren Teilum- bördelungen durch die jeweils entsprechend ausgerichteten Gegenrollen erzeugt sind.7. A method for folding a flange around another parallel flange by 180 °, characterized in that the flanging takes place in four steps, at least in the first step the two flanges being pressed against one another by a pressure roller and a counter roller and a conical one Section of the pressure roller ensures a partial flanging, and that in the following steps the further partial flanging is generated by the correspondingly aligned counter-rollers.
8. Verfahren zum Falzen eines Flansches um 180° in vier Schritten, wobei mindestens drei unterschiedliche Rollenpaarungen zum Einsatz kommen, die von einem Rollfalzkopf gemäß einem der Ansprüche 1 bis 6 getragen sind. 8. A method for folding a flange by 180 ° in four steps, at least three different pairs of rollers being used, which are carried by a roller fold head according to one of claims 1 to 6.
EP02798687A 2001-08-31 2002-08-29 Roller folding head and method for folding a flange Expired - Lifetime EP1420908B1 (en)

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DE10142698 2001-08-31
DE10142698 2001-08-31
PCT/DE2002/003217 WO2003024641A1 (en) 2001-08-31 2002-08-29 Roller folding head and method for folding a flange

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EP (1) EP1420908B1 (en)
JP (1) JP4485196B2 (en)
KR (1) KR100883320B1 (en)
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DE (2) DE50207123D1 (en)
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US8720876B2 (en) 2006-03-28 2014-05-13 Edag Gmbh & Co. Kgaa Clamping device for holding and clamping components
US9006605B2 (en) 2007-01-15 2015-04-14 Fft Produktionssysteme Gmbh & Co. Kg Sheet-metal composite, method for joining sheets and joining device
US8631996B2 (en) 2007-01-18 2014-01-21 Toyota Motor Corporation Composite of sheet metal parts
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US8408036B2 (en) 2007-06-01 2013-04-02 Fft Edag Produktionssysteme Gmbh & Co. Kg Edge curling tool

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DE50207123D1 (en) 2006-07-20
ES2263848T3 (en) 2006-12-16
US20050015955A1 (en) 2005-01-27
ATE328682T1 (en) 2006-06-15
KR20040063115A (en) 2004-07-12
EP1420908B1 (en) 2006-06-07
WO2003024641A1 (en) 2003-03-27
US7152292B2 (en) 2006-12-26
DE20280246U1 (en) 2004-07-15
KR100883320B1 (en) 2009-02-11
JP2005501740A (en) 2005-01-20
JP4485196B2 (en) 2010-06-16

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