EP0918582B1 - Hemming device - Google Patents

Hemming device Download PDF

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Publication number
EP0918582B1
EP0918582B1 EP97932767A EP97932767A EP0918582B1 EP 0918582 B1 EP0918582 B1 EP 0918582B1 EP 97932767 A EP97932767 A EP 97932767A EP 97932767 A EP97932767 A EP 97932767A EP 0918582 B1 EP0918582 B1 EP 0918582B1
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EP
European Patent Office
Prior art keywords
flanging
segments
flanging device
connecting rods
different
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.)
Expired - Lifetime
Application number
EP97932767A
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German (de)
French (fr)
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EP0918582A1 (en
Inventor
Ernst Zimmer
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.)
KUKA Systems GmbH
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KUKA Schweissanlagen GmbH
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Filing date
Publication date
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Publication of EP0918582A1 publication Critical patent/EP0918582A1/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
    • 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
    • Y10T29/53717—Annular work
    • Y10T29/53722—Annular work with radially acting tool inside annular work

Definitions

  • the invention relates to a flanging device with the Features in the preamble of the main claim.
  • Such a flanging device is from WO-A-95/21711 known. It has a crimping head, which several in Has segmented flared steels.
  • the Flanging device also has a stroke drive for Generation of the flaring stroke and an adjusting device with a wedge drive for simultaneous retraction and extension of the segments.
  • the segments form in the extended Operating position a flanged edge interrupted at the corner. They are the same size when entering and exiting Delivery routes and delivery speeds are moving.
  • Such flanging devices are mainly for Workpieces with an internal opening, e.g. Vehicle doors with a window cutout, thought. In withdrawn rest position of the segments can Open and lower the flanging head in the workpiece opening. In the extended operating position, the segments flare the Sheet edges around.
  • flanging devices are in practice in known various embodiments. You own a crimping head that divides one or more into segments divided and with a rotating in the operating position Has flanged steels provided. This previously known flanging devices have a two or multi-stage actuator that adjusts the segments moved in two or more groups one after the other. This requires multiple drives and means an increased one Tax and construction costs. This technique also costs Cycle time.
  • the invention solves this problem with the features in the main claim.
  • all segments can be moved simultaneously, with their oblique contact surfaces abutting one another flush in the extended operating position and forming a continuous, uninterrupted flanged edge at at least one corner region.
  • the segments only need one drive.
  • the flanging device according to the invention is therefore less expensive, more economical and faster.
  • the contact surfaces of the segments are on the kinematics customized. We recommend that you avoid accidents Wedge angle between 20 ° to 50 °, preferably 35 ° to 40 °.
  • the preferred embodiment of the actuator as Crank drive offers a stable and highly precise Construction.
  • the cranks take one Stretch position and support the segments against the Flaring forces safely.
  • the cranks By arranging the cranks in different heights on the crankshaft Cranks independently and without mutual Disorder turn, being of different lengths Can perform delivery strokes.
  • the segments With this crank kinematics the segments can be moved at different speeds and avoid each other. Most of all, this is then an advantage if the flanged edge goes around the corner and the feed axes of the segments at an angle to one another are aligned.
  • the flanging device (1) in one uncut side view and in a longitudinal section from the same direction.
  • the flanging device (1) is used for Machining a workpiece (2) in which it is for example a vehicle door with a Window cutout (3) is.
  • the crimping device (1) is in the workpiece opening (3) or in Window cutout and is used for flanging the corner circumferential sheet metal inner edges (34).
  • the workpiece (2) rests on a suitable one Workpiece holder (4) and is fixed on it.
  • the Workpiece holder (4) surrounds the flanging device (1).
  • the flanging device (1) has a lifting drive and Guide unit (7) with a crimping head that can be moved with it (6) and a frame (5).
  • the crimping head (6) leads by means of the lifting drive (7) in the shown Embodiment vertical lifting or flanging movements out.
  • the flaring stroke also runs horizontally or at an angle.
  • the crimping head (6) has one or more crimping steels (8,9), which in the operating position (see FIG. 3) has a Form a flanged edge (11) all around the corner.
  • the flared steels (8.9) are an exemplary embodiment. arranged one above the other, the upper flare steel (8) the pre-flaring and the lower flaring steel (9) the Finishing is used.
  • the flare steels (8,9) each consist of several Segments (12,13,14,15,16) that are transverse to the stroke direction are arranged movably and with an adjusting device (22) can be extended and retracted.
  • the segments (12,13,14,15,16) are flush with each other and form with the outer, the continuous, uninterrupted Flanged edge (11).
  • the segments (12, 13, 14, 15, 16) are different withdrawn far and have a diminished Outer circumference.
  • the crimping head (6) move up and down through the workpiece opening (3) and also allows a workpiece change.
  • Fig. 1 illustrates the retreat position
  • Fig. 2 the operating position in Side view.
  • Fig. 3 to 6 is the circumferential Flanged edge (11) angled according to the shape of the window or turned. This results in at least one preferably several corners or bends. Accordingly the segments (12, 13, 14, 15, 16) are distributed all around and in corresponding number available. 3 and 4 are five segments (12,13,14,15,16). 6 and 7 are There are three segments each (12, 13, 14). The segments can in turn be at least partially angled and go over corners with their flanged edge sections.
  • the flanged edges (11) consist essentially of a vertical or inclined guide surface for angling the upstanding sheet metal edges or sheet metal inner edges (34).
  • the Guide surfaces run in with both flare steels (8.9) a projecting flare (10).
  • the inclination of the Surfaces and the rounding of the transition into the flare nose (10) are different sizes around the sheet metal edges first incline at pre-flanging and then at Fold over the finished flange.
  • the segments (12,13,14,15,16) are from the Actuator (22) jointly driven and moved at the same time. They run differently long delivery strokes at different speeds out. As can be seen from FIGS. 3 to 7, the segments have (12,13,14,15,16) heads of different widths.
  • the segments with the wider heads preferably in the corner areas and those with the narrower heads in between. The segments with the narrower heads prefer to move faster and with longer strokes than the segments with the wider ones Minds.
  • the segments (12, 13, 14, 15, 16) have sloping heads Contact surfaces (17) with which they extend Operating position touch each other. In retracted At rest there is a distance between the Contact surfaces (17).
  • the contact surfaces (17) are connected to the simultaneous segment movement required kinematics adapted and allow a collision-free release of the Segments (12,13,14,15,16) from each other and their trouble-free retraction and feed movement.
  • the Contact surfaces (17) each have a point Wedge angle ⁇ to the adjacent flanged edge (11), the is between 20 ° and 50 °, preferably 30 ° and 45 °.
  • 3 and 5 illustrate the contact areas (17) alternately inclined to the right and left.
  • the Have segments (12, 14, 16) with the narrower heads preferably one or two inclined to the outside Contact surfaces (17). This results in a Complementary angle ⁇ of 180 ° - ⁇ .
  • the segments (13, 15) with the broad minds, on the other hand, have two setbacks Contact surfaces (17), which at the top directly Form wedge angle ⁇ .
  • the adjusting device (22) can have different designs his. In the preferred embodiment, it is as Designed crank mechanism (23). In the embodiment of 3 to 6, the crank mechanism (23) each has one Crankshaft (24). In the embodiment of FIG. 7 a second parallel crankshaft (25) as an auxiliary shaft available with the main shaft (24) directly over a Coupling rod (35) or indirectly via the drive is connected and rotates with it.
  • the crankshafts (24,25) extend along the stroke direction of the Crimping head (6).
  • the crankshaft (24) has one Rotary drive (26) which e.g. as hydraulic drive can be trained. In a modified one Embodiment can double Crankshaft arrangement two coupled drives available his.
  • crank assemblies are from booms (32) to the Crankshafts (24.25) and crank rods (27,28,29,30,31) formed on the segments (12,13,14,15,16) are articulated.
  • Fig. 4 shows the Crank arrangement schematic. 5 is a single one Crank for the segment (14) shown. The others are omitted for clarity. As in Fig. 4 made clear, the cranks are of different lengths.
  • the Articulation points on the arms (32) have different ones Distances to the crankshaft (24.25) and also the Crank rods (27,28,29,30,31) have different ones Lengths.
  • This crank geometry is used for generation delivery strokes of different lengths and speeds Segments (12,13,14,15,16).
  • the crank rods (27,28,29,30,31) and boom (32) are correspondingly flat.
  • the segments (12, 13, 14, 15, 16) have supports (18, 20) with which they are guided exactly.
  • the carriers (18) are as Slide formed, which along a straight guide (19) be moved.
  • the carriers (20) in Fig. 6 and 7 are as Swivel plates formed, which are along the Crankshaft (24, 25) aligned pivot bearing (21) rotate. 6 and 7 are the operating positions of the Segments (12,13,14) with solid lines and the Treatment positions shown with dashed lines.
  • the carriers (18, 20) are shaped so that they are in Retracted position are fitted almost exactly into each other and on the other hand with obstacles inside the Crimping head (6) e.g. continuous tie rods or the like, do not collide.
  • crank mechanism (23) is in the different Embodiments designed so that the cranks, i.e. the crank rods (27,28,29,30,31) and boom (32) a stretched position in the extended operating position take in. In this position they support the along the Flanging forces acting on the feed axes (33) optimally.
  • the transverse or oblique forces are over the Guides (19) or pivot bearing (21) supported.
  • the crimping head (6) and its Segments (12,13,14,15,16) it is advantageous initially one segment according to the direction and size of the delivery stroke to be determined. This is preferably the most bulky segment and a corner piece. It is best to give this a short one Give hub and thus the interfering edge for the collision-free passage in the workpiece opening (3) to be determined. Then the other segments (12,13,14,15,16) divided among themselves, their Infeed axes (33) are preferably essentially the same Have angles to each other.
  • the Interfaces i.e. the position of the contact surfaces (17), fixed. As the top views illustrate, change thereby segments with narrow and segments with each other broad heads. The strokes are accordingly alternately long and short.
  • the first segment will be the delivery stroke and the Infeed direction along the infeed axis (33) on the Interface, i.e. at the intersection of the flanged edge (11) and contact surface (17). Then for that Neighboring segment whose stroke and direction also on this Interface entered. The two endpoints of this Routes are interconnected. This The connecting line is then turned back approx. 2 ° to 15 °, to the game required in the retracted position guarantee. In its end position, this forms Connection line then the contact surface (17). With this Method, the wedge angles ⁇ result automatically Construction is carried out one after the other in the other segments applied. Then the construction can still be optimized.
  • a crimp on the three overhead Detail pages In the exemplary embodiments shown the segment heads or the flanged edge (11) are convex bent. Alternatively, you can also at least in places be concave or straight. With a modified one Construction of a crimping head (6) can also Outside of a workpiece (3) are processed.
  • the Flanging device (1) does not have to go through a Workpiece opening (3) extend, but can also on Stand outside edge of a workpiece (3).
  • the adjusting device (22) be trained differently.
  • a crank mechanism (23) can e.g. also a drive with several at the same time actuated actuating cylinders or the like suitable drive elements.
  • the leadership the segments can also be designed differently.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Seal Device For Vehicle (AREA)
  • Bridges Or Land Bridges (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Transmission Devices (AREA)

Description

Die Erfindung betrifft eine Bördelvorrichtung mit den Merkmalen im Oberbegriff des Hauptanspruches.The invention relates to a flanging device with the Features in the preamble of the main claim.

Eine solche Bördelvorrichtung ist aus der WO-A-95/21711 bekannt. Sie besitzt einen Bördelkopf, der mehrere in Segmente unterteilte Bördelstähle aufweist. Die Bördelvorrichtung besitzt ferner einen Hubantrieb zur Erzeugung des Bördelhubs und eine Stellvorrichtung mit einem Keilantrieb zum gleichzeitigen Ein- und Ausfahren der Segmente. Die Segmente bilden in der ausgefahrenen Betriebstellung eine über Eck unterbrochene Bördelkante. Sie werden beim Ein- und Ausfahren mit gleich großen Zustellwegen und Zustellgeschwindigkeiten bewegt. Derartige Bördelvorrichtungen sind vor allem für Werkstücke mit einer innenliegenden Öffnung, z.B. Fahrzeugtüren mit einem Fensterausschnitt, gedacht. In zurückgezogener Ruhestellung der Segmente kann der Bördelkopf in der Werkstücköffnung auf- und niedergehen. In ausgefahrener Betriebsstellung bördeln die Segmente die Blechkanten um.Such a flanging device is from WO-A-95/21711 known. It has a crimping head, which several in Has segmented flared steels. The Flanging device also has a stroke drive for Generation of the flaring stroke and an adjusting device with a wedge drive for simultaneous retraction and extension of the segments. The segments form in the extended Operating position a flanged edge interrupted at the corner. They are the same size when entering and exiting Delivery routes and delivery speeds are moving. Such flanging devices are mainly for Workpieces with an internal opening, e.g. Vehicle doors with a window cutout, thought. In withdrawn rest position of the segments can Open and lower the flanging head in the workpiece opening. In the extended operating position, the segments flare the Sheet edges around.

Weitere Bördelvorrichtungen sind aus der Praxis in verschiedenen Ausführungsformen bekannt. Sie besitzen einen Bördelkopf, der ein oder mehrere in Segmente unterteilte und mit einer in Betriebstellung umlaufenden Bördelkante versehene Bördelstähle aufweist. Diese vorbekannten Bördelvorrichtungen haben eine zwei- oder mehrstufig arbeitende Stellvorrichtung, die die Segmente in zwei oder mehr Gruppen nacheinander bewegt. Dies erfordert mehrere Antriebe und bedeutet einen erhöhten Steuer- und Bauaufwand. Außerdem kostet diese Technik Taktzeit.Other flanging devices are in practice in known various embodiments. You own a crimping head that divides one or more into segments divided and with a rotating in the operating position Has flanged steels provided. This previously known flanging devices have a two or multi-stage actuator that adjusts the segments moved in two or more groups one after the other. This requires multiple drives and means an increased one Tax and construction costs. This technique also costs Cycle time.

Es ist Aufgabe der vorliegenden Erfindung, eine bessere Bördelvorrichtung aufzuzeigen.It is an object of the present invention to provide a better one To show flanging device.

Die Erfindung löst diese Aufgabe mit den Merkmalen im Hauptanspruch.
Bei der erfindungsgemäßen Bördelvorrichtung können alle Segmente gleichzeitig bewegt werden, wobei sie in der ausgefahrenen Betriebsstellung mit ihren schrägen Kontaktflächen bündig aneinander stoßen und an zumindest einem Eckbereich eine umlaufende, ununterbrochene Bördelkante bilden. Die Segmente brauchen nur noch einen Antrieb. Die erfindungsgemäße Bördelvorrichtung ist dadurch kostengünstiger, wirtschaftlicher und schneller.The invention solves this problem with the features in the main claim.
In the flanging device according to the invention, all segments can be moved simultaneously, with their oblique contact surfaces abutting one another flush in the extended operating position and forming a continuous, uninterrupted flanged edge at at least one corner region. The segments only need one drive. The flanging device according to the invention is therefore less expensive, more economical and faster.

Die Kontaktflächen der Segmente sind an die Kinematik angepaßt. Zur Vermeidung von Störfällen empfehlen sich Keilwinkel zwischen 20° bis 50°, vorzugsweise 35° bis 40°.The contact surfaces of the segments are on the kinematics customized. We recommend that you avoid accidents Wedge angle between 20 ° to 50 °, preferably 35 ° to 40 °.

Die bevorzugte Ausgestaltung des Stellantriebs als Kurbeltrieb bietet eine stabile und hochpräzise Konstruktion. In Betriebsstellung nehmen die Kurbeln eine Strecklage ein und stützen die Segmente gegen die Bördelkräfte sicher ab. Durch die Anordnung der Kurbeln in unterschiedlichen Höhen an der Kurbelwelle können sich die Kurbeln unabhängig voneinander und ohne gegenseitige Störung drehen, wobei sie unterschiedliche lange Zustellhübe ausführen können. Mit dieser Kurbelkinematik können die Segmente unterschiedlich schnell bewegt werden und gehen sich gegenseitig aus dem Weg. Dies ist vor allem dann von Vorteil, wenn die Bördelkante um die Ecke geht und die Zustellachsen der Segmente winkelig zueinander ausgerichtet sind.The preferred embodiment of the actuator as Crank drive offers a stable and highly precise Construction. In the operating position, the cranks take one Stretch position and support the segments against the Flaring forces safely. By arranging the cranks in different heights on the crankshaft Cranks independently and without mutual Disorder turn, being of different lengths Can perform delivery strokes. With this crank kinematics the segments can be moved at different speeds and avoid each other. Most of all, this is then an advantage if the flanged edge goes around the corner and the feed axes of the segments at an angle to one another are aligned.

In den Unteransprüchen sind weitere vorteilhafte Ausgestaltungen der Erfindung angegeben. In the subclaims are further advantageous Embodiments of the invention specified.

Die Erfindung ist in den Zeichnungen beispielsweise und schematisch dargestellt. Im einzelnen zeigen:

Fig. 1 und 2
die Bördelvorrichtung in einer Seitenansicht und in einem Längsschnitt,
Fig. 3 und 4
einen Bördelkopf mit fünf Segmenten in Draufsicht und in ausgefahrener Betriebsstellung sowie eingefahrener Ruhestellung,
Fig. 5
eine vergrößerte Detailansicht von einzelnen Segmenten und
Fig. 6 und 7
Varianten des Bördelkopfs mit verschiedenen Segmentausbildungen.
The invention is shown in the drawings, for example and schematically. In detail show:
1 and 2
the flanging device in a side view and in a longitudinal section,
3 and 4
a crimping head with five segments in plan view and in the extended operating position and retracted rest position,
Fig. 5
an enlarged detail view of individual segments and
6 and 7
Variants of the crimping head with different segment designs.

Fig. 1 und 2 zeigen die Bördelvorrichtung (1) in einer ungeschnittenen Seitenansicht und in einem Längsschnitt aus gleicher Richtung. Die Bördelvorrichtung (1) dient zur Bearbeitung eines Werkstücks (2), bei dem es sich beispielsweise um eine Fahrzeugtüre mit einem Fensterausschnitt (3) handelt. Die Bördelvorrichtung (1) befindet sich in der Werkstücköffnung (3) bzw. im Fensterausschnitt und dient zum Bördeln der über Eck umlaufenden Blechinnenkanten (34).1 and 2 show the flanging device (1) in one uncut side view and in a longitudinal section from the same direction. The flanging device (1) is used for Machining a workpiece (2) in which it is for example a vehicle door with a Window cutout (3) is. The crimping device (1) is in the workpiece opening (3) or in Window cutout and is used for flanging the corner circumferential sheet metal inner edges (34).

Das Werkstück (2) ruht auf einer geeigneten Werkstückaufnahme (4) und ist darauf fixiert. Die Werkstückaufnahme (4) umgibt die Bördelvorrichtung (1).The workpiece (2) rests on a suitable one Workpiece holder (4) and is fixed on it. The Workpiece holder (4) surrounds the flanging device (1).

Die Bördelvorrichtung (1) weist eine Hubantriebs- und Führungseinheit (7) mit einem damit beweglichen Bördelkopf (6) und einem Gestell (5) auf. Der Bördelkopf (6) führt mittels des Hubantriebs (7) im gezeigten Ausführungsbeispiel vertikale Hub- oder Bördelbewegungen aus. In Variation kann bei entsprechender Geräteausbildung der Bördelhub auch horizontal oder schräg verlaufen.The flanging device (1) has a lifting drive and Guide unit (7) with a crimping head that can be moved with it (6) and a frame (5). The crimping head (6) leads by means of the lifting drive (7) in the shown Embodiment vertical lifting or flanging movements out. In a variation, with appropriate device training the flaring stroke also runs horizontally or at an angle.

Der Bördelkopf (6) weist einen oder mehrere Bördelstähle (8,9) auf, die in Betriebsstellung (vgl. Fig. 3) eine über Eck umlaufende Bördelkante (11) bilden. Im gezeigten Ausführungsbeispiel sind die Bördelstähle (8,9) übereinander angeordnet, wobei der obere Bördelstahl (8) dem Vorbördeln und der untere Bördelstahl (9) dem Fertigbördeln dient.The crimping head (6) has one or more crimping steels (8,9), which in the operating position (see FIG. 3) has a Form a flanged edge (11) all around the corner. In the shown The flared steels (8.9) are an exemplary embodiment. arranged one above the other, the upper flare steel (8) the pre-flaring and the lower flaring steel (9) the Finishing is used.

Die Bördelstähle (8,9) bestehen jeweils aus mehreren Segmenten (12,13,14,15,16), die quer zur Hubrichtung beweglich angeordnet sind und mit einer Stellvorrichtung (22) aus- und eingefahren werden können. In der ausgefahrenen Betriebsstellung gemäß Fig. 3 stoßen die Segmente (12,13,14,15,16) bündig aneinander und bilden mit ihren Außenflächen die umlaufende, ununterbrochene Bördelkante (11). In der eingefahrenen Ruhestellung gemäß Fig. 4 sind die Segmente (12,13,14,15,16) unterschiedlich weit zurückgezogen und haben einen verringerten Außenumfang. In dieser Stellung kann der Bördelkopf (6) durch die Werkstücköffnung (3) auf- und niederfahren und erlaubt auch einen Werkstückwechsel. Fig. 1 verdeutlicht die Rückzugsstellung und Fig. 2 die Betriebsstellung in Seitenansicht.The flare steels (8,9) each consist of several Segments (12,13,14,15,16) that are transverse to the stroke direction are arranged movably and with an adjusting device (22) can be extended and retracted. In the extended operating position shown in FIG. 3 encounter the Segments (12,13,14,15,16) are flush with each other and form with the outer, the continuous, uninterrupted Flanged edge (11). According to the retracted rest position 4, the segments (12, 13, 14, 15, 16) are different withdrawn far and have a diminished Outer circumference. In this position the crimping head (6) move up and down through the workpiece opening (3) and also allows a workpiece change. Fig. 1 illustrates the retreat position and Fig. 2 the operating position in Side view.

Wie aus Fig. 3 bis 6 hervorgeht, ist die umlaufende Bördelkante (11) entsprechend der Fensterform abgewinkelt oder abgebogen. Hierbei ergeben sich mindestens eine, vorzugsweise mehrere Ecken oder Biegungen. Dementsprechend sind die Segmente (12,13,14,15,16) rundum verteilt und in entsprechender Zahl vorhanden. In Fig. 3 und 4 sind es fünf Segmente (12,13,14,15,16). In Fig. 6 und 7 sind jeweils drei Segmente (12,13,14) vorhanden. Die Segmente können ihrerseits zumindest teilweise gewinkelt sein und mit ihren Bördelkantenabschnitten über Eck gehen.As can be seen from Fig. 3 to 6, is the circumferential Flanged edge (11) angled according to the shape of the window or turned. This results in at least one preferably several corners or bends. Accordingly the segments (12, 13, 14, 15, 16) are distributed all around and in corresponding number available. 3 and 4 are five segments (12,13,14,15,16). 6 and 7 are There are three segments each (12, 13, 14). The segments can in turn be at least partially angled and go over corners with their flanged edge sections.

Die Bördelkanten (11) bestehen im wesentlichen aus einer vertikalen oder schrägen Angleitfläche zum Anwinkeln der hochstehenden Blechränder bzw. Blechinnenkanten (34). Die Angleitflächen laufen bei beiden Bördelstählen (8,9) in eine vorspringende Bördelnase (10) aus. Die Neigung der Flächen und die Abrundung des Übergangs in die Bördelnase (10) sind unterschiedlich groß, um die Blechränder zunächst bei Vorbördeln schrägzustellen und dann beim Fertigbördeln umzuklappen.The flanged edges (11) consist essentially of a vertical or inclined guide surface for angling the upstanding sheet metal edges or sheet metal inner edges (34). The Guide surfaces run in with both flare steels (8.9) a projecting flare (10). The inclination of the Surfaces and the rounding of the transition into the flare nose (10) are different sizes around the sheet metal edges first incline at pre-flanging and then at Fold over the finished flange.

Die Segmente (12,13,14,15,16) werden von der Stellvorrichtung (22) gemeinsam angetrieben und gleichzeitig bewegt. Sie führen dabei unterschiedlich lange Zustellhübe mit unterschiedlichen Geschwindigkeiten aus. Wie aus Fig. 3 bis 7 ersichtlich, haben die Segmente (12,13,14,15,16) auch unterschiedlich breite Köpfe. Die Segmente mit den breiteren Köpfen befinden sich vorzugsweise in den Eckbereichen und diejenigen mit den schmäleren Köpfen dazwischen. Die Segmente mit den schmäleren Köpfen bewegen sich vorzugsweise schneller und mit längeren Hüben als die Segmente mit den breiteren Köpfen.The segments (12,13,14,15,16) are from the Actuator (22) jointly driven and moved at the same time. They run differently long delivery strokes at different speeds out. As can be seen from FIGS. 3 to 7, the segments have (12,13,14,15,16) heads of different widths. The There are segments with the wider heads preferably in the corner areas and those with the narrower heads in between. The segments with the narrower heads prefer to move faster and with longer strokes than the segments with the wider ones Minds.

Die Segmente (12,13,14,15,16) haben an den Köpfen schräge Kontaktflächen (17), mit denen sie in ausgefahrener Betriebsstellung einander berühren. In eingefahrener Ruhestellung besteht ein Abstand zwischen den Kontaktflächen (17).The segments (12, 13, 14, 15, 16) have sloping heads Contact surfaces (17) with which they extend Operating position touch each other. In retracted At rest there is a distance between the Contact surfaces (17).

Die Kontaktflächen (17) sind an die durch die gleichzeitige Segmentbewegung erforderliche Kinematik angepaßt und erlauben ein kollisionsfreies Lösen der Segmente (12,13,14,15,16) voneinander und deren störungsfreie Rückzugs- und Vorschubbewegung. Die Kontaktflächen (17) haben dabei jeweils einen spitzen Keilwinkel α zur benachbarten Bördelkante (11), der zwischen 20° und 50°, vorzugsweise 30° und 45°, liegt.The contact surfaces (17) are connected to the simultaneous segment movement required kinematics adapted and allow a collision-free release of the Segments (12,13,14,15,16) from each other and their trouble-free retraction and feed movement. The Contact surfaces (17) each have a point Wedge angle α to the adjacent flanged edge (11), the is between 20 ° and 50 °, preferably 30 ° and 45 °.

Wie Fig. 3 und 5 verdeutlichen, sind die Kontaktflächen (17) abwechselnd nach rechts und links geneigt. Die Segmente (12,14,16) mit den schmäleren Köpfen haben vorzugsweise eine oder zwei schräg nach außen gestellte Kontaktflächen (17). Hierdurch ergibt sich ein Komplementärwinkel β von 180°-α. Die Segmente (13,15) mit den breiten Köpfen haben hingegen zwei rückspringende Kontaktflächen (17), die an der Spitze unmittelbar den Keilwinkel α bilden.3 and 5 illustrate the contact areas (17) alternately inclined to the right and left. The Have segments (12, 14, 16) with the narrower heads preferably one or two inclined to the outside Contact surfaces (17). This results in a Complementary angle β of 180 ° -α. The segments (13, 15) with the broad minds, on the other hand, have two setbacks Contact surfaces (17), which at the top directly Form wedge angle α.

Die Stellvorrichtung (22) kann unterschiedlich ausgebildet sein. Im bevorzugten Ausführungsbeispiel ist sie als Kurbeltrieb (23) ausgestaltet. Im Ausführungsbeispiel von Fig. 3 bis 6 besitzt der Kurbeltrieb (23) jeweils eine Kurbelwelle (24). Im Ausführungsbeispiel der Fig. 7 ist eine zweite parallele Kurbelwelle (25) als Hilfswelle vorhanden, die mit der Hauptwelle (24) direkt über eine Koppelstange (35) oder mittelbar über den Antrieb verbunden ist und sich mit dieser dreht. Die Kurbelwellen (24,25) erstrecken sich längs der Hubrichtung des Bördelkopfes (6). Die Kurbelwelle (24) hat einen Drehantrieb (26), der z.B. als Hydraulikantrieb ausgebildet sein kann. In einer abgewandelten Ausführungsform können bei der doppelten Kurbelwellenanordnung zwei gekoppelte Antriebe vorhanden sein.The adjusting device (22) can have different designs his. In the preferred embodiment, it is as Designed crank mechanism (23). In the embodiment of 3 to 6, the crank mechanism (23) each has one Crankshaft (24). In the embodiment of FIG. 7 a second parallel crankshaft (25) as an auxiliary shaft available with the main shaft (24) directly over a Coupling rod (35) or indirectly via the drive is connected and rotates with it. The crankshafts (24,25) extend along the stroke direction of the Crimping head (6). The crankshaft (24) has one Rotary drive (26) which e.g. as hydraulic drive can be trained. In a modified one Embodiment can double Crankshaft arrangement two coupled drives available his.

Die Kurbelanordnungen werden von Auslegern (32) an den Kurbelwellen (24,25) und von Kurbelstangen (27,28,29,30,31) gebildet, die an den Segmenten (12,13,14,15,16) angelenkt sind. Fig. 4 zeigt die Kurbelanordnung schematisch. In Fig. 5 ist eine einzelne Kurbel für das Segment (14) dargestellt. Die anderen sind der Übersichtlichkeit wegen weggelassen. Wie in Fig. 4 verdeutlicht, sind die Kurbeln unterschiedlich lang. Die Gelenkpunkte an den Auslegern (32) haben unterschiedliche Abstände zur Kurbelwelle (24,25) und auch die Kurbelstangen (27,28,29,30,31) haben unterschiedliche Längen. Diese Kurbelgeometrie dient der Erzeugung unterschiedlich langer und schneller Zustellhübe der Segmente (12,13,14,15,16).The crank assemblies are from booms (32) to the Crankshafts (24.25) and crank rods (27,28,29,30,31) formed on the segments (12,13,14,15,16) are articulated. Fig. 4 shows the Crank arrangement schematic. 5 is a single one Crank for the segment (14) shown. The others are omitted for clarity. As in Fig. 4 made clear, the cranks are of different lengths. The Articulation points on the arms (32) have different ones Distances to the crankshaft (24.25) and also the Crank rods (27,28,29,30,31) have different ones Lengths. This crank geometry is used for generation delivery strokes of different lengths and speeds Segments (12,13,14,15,16).

Wie Fig. 2 im Längsschnitt verdeutlicht, sind die Kurbeln mit ihren Auslegern (32) in unterschiedlichen Höhen an der Kurbelwelle (24,25) angeordnet. Sie bewegen sich dadurch in unterschiedlichen Lagen übereinander, ohne sich gegenseitig zu stören. Die Kurbelstangen (27,28,29,30,31) und Ausleger (32) sind entsprechend flach.As shown in Fig. 2 in longitudinal section, the cranks with its outriggers (32) at different heights on the Crankshaft (24,25) arranged. You move through it in different layers on top of each other, without each other to interfere with each other. The crank rods (27,28,29,30,31) and boom (32) are correspondingly flat.

Die Segmente (12,13,14,15,16) besitzen Träger (18,20), mit denen sie exakt geführt sind. Die Träger (18) sind als Schieber ausgebildet, die entlang einer Geradführung (19) bewegt werden. Die Träger (20) in Fig. 6 und 7 sind als Schwenkplatten ausgebildet, die sich um ein längs der Kurbelwelle (24,25) ausgerichtetes Schwenklager (21) drehen. In Fig. 6 und 7 sind die Betriebsstellungen der Segmente (12,13,14) mit ausgezogenen Linien und die Rückzugsstellungen mit gestrichelten Linien dargestellt. Die Träger (18,20) sind so ausgeformt, daß sie in Rückzugsstellung ziemlich genau ineinander eingepaßt sind und andererseits mit Hindernissen im Inneren des Bördelkopfes (6) z.B. durchgehenden Zugankern oder dergleichen, nicht kollidieren.The segments (12, 13, 14, 15, 16) have supports (18, 20) with which they are guided exactly. The carriers (18) are as Slide formed, which along a straight guide (19) be moved. The carriers (20) in Fig. 6 and 7 are as Swivel plates formed, which are along the Crankshaft (24, 25) aligned pivot bearing (21) rotate. 6 and 7 are the operating positions of the Segments (12,13,14) with solid lines and the Retreat positions shown with dashed lines. The carriers (18, 20) are shaped so that they are in Retracted position are fitted almost exactly into each other and on the other hand with obstacles inside the Crimping head (6) e.g. continuous tie rods or the like, do not collide.

Der Kurbeltrieb (23) ist in den verschiedenen Ausführungsbeispielen so ausgestaltet, daß die Kurbeln, d.h. die Kurbelstangen (27,28,29,30,31) und Ausleger (32) in der ausgefahrenen Betriebsstellung eine Strecklage einnehmen. In dieser Stellung stützen sie die längs der Zustellachsen (33) einwirkenden Bördelkräfte optimal ab. Die quer- oder schräggerichteten Kräfte werden über die Führungen (19) bzw. Schwenklager (21) abgestützt.The crank mechanism (23) is in the different Embodiments designed so that the cranks, i.e. the crank rods (27,28,29,30,31) and boom (32) a stretched position in the extended operating position take in. In this position they support the along the Flanging forces acting on the feed axes (33) optimally. The transverse or oblique forces are over the Guides (19) or pivot bearing (21) supported.

Für die Konstruktion des Bördelkopfes (6) und seiner Segmente (12,13,14,15,16) ist es vorteilhaft, zunächst einmal ein Segment nach Richtung und Größe des Zustellhubs festzulegen. Vorzugsweise ist dies das sperrigste Segment und ein Eckteil. Es empfiehlt sich, diesem einen kurzen Hub zu geben und damit die Störkante für den kollisionsfreien Durchtritt in der Werkstücköffnung (3) festzulegen. Dann werden die anderen Segmente (12,13,14,15,16) untereinander aufgeteilt, wobei ihre Zustellachsen (33) vorzugsweise im wesentlichen gleiche Winkel untereinander haben. Zugleich werden auch die Schnittstellen, d.h. die Lage der Kontaktflächen (17), festgelegt. Wie die Draufsichten verdeutlichen, wechseln dabei einander Segmente mit schmalen und Segmente mit breiten Köpfen ab. Dementsprechend sind die Hübe abwechselnd lang und kurz. Bei dem anfangs festgelegten ersten Segment werden der Zustellhub und die Zustellrichtung längs der Zustellachse (33) an der Schnittstelle, d.h. am Schnittpunkt von Bördelkante (11) und Kontaktfläche (17) angetragen. Dann wird für das Nachbarsegment dessen Hub und Richtung ebenfalls an dieser Schnittstelle angetragen. Die beiden Endpunkte dieser Strecken werden miteinander verbunden. Diese Verbindungslinie wird dann ca. 2° bis 15° zurückgedreht, um das in Rückzugsstellung erforderliche Spiel zu gewährleisten. In ihrer Endstellung bildet diese Verbindungslinie dann die Kontaktfläche (17). Mit dieser Methode ergeben sich die Keilwinkel α von selbst. Diese Konstruktion wird bei den anderen Segmenten nacheinander angewandt. Anschließend kann die Konstruktion noch optimiert werden. For the construction of the crimping head (6) and its Segments (12,13,14,15,16) it is advantageous initially one segment according to the direction and size of the delivery stroke to be determined. This is preferably the most bulky segment and a corner piece. It is best to give this a short one Give hub and thus the interfering edge for the collision-free passage in the workpiece opening (3) to be determined. Then the other segments (12,13,14,15,16) divided among themselves, their Infeed axes (33) are preferably essentially the same Have angles to each other. At the same time, the Interfaces, i.e. the position of the contact surfaces (17), fixed. As the top views illustrate, change thereby segments with narrow and segments with each other broad heads. The strokes are accordingly alternately long and short. At the initially determined The first segment will be the delivery stroke and the Infeed direction along the infeed axis (33) on the Interface, i.e. at the intersection of the flanged edge (11) and contact surface (17). Then for that Neighboring segment whose stroke and direction also on this Interface entered. The two endpoints of this Routes are interconnected. This The connecting line is then turned back approx. 2 ° to 15 °, to the game required in the retracted position guarantee. In its end position, this forms Connection line then the contact surface (17). With this Method, the wedge angles α result automatically Construction is carried out one after the other in the other segments applied. Then the construction can still be optimized.

Abwandlungen der beschriebenen Ausführungsbeispiele sind in verschiedener Weise möglich. Zum einen kann die Bördelkante (11) nicht nur in einem ein- oder mehrfach abgewinkelten offenen Bogen, sondern auch in einem geschlossenen Bogen rundumgeführt werden.Modifications of the described embodiments are possible in different ways. For one, it can Flanged edge (11) not only one or more times angled open arch, but also in one closed arch can be guided all around.

Beim bevorzugten Einsatzzweck der Türbördelungen genügt jedoch eine Bördelung an den drei obenliegenden Ausschnittsseiten. In den gezeigten Ausführungsbeispielen sind die Segmentköpfe bzw. die Bördelkante (11) konvex gebogen. Sie können alternativ auch zumindest stellenweise konkav gebogen oder gerade sein. Mit einer abgewandelten Konstruktion eines Bördelkopfes (6) können auch die Außenseiten eines Werkstücks (3) bearbeitet werden. Die Bördelvorrichtung (1) muß sich nicht durch eine Werkstücköffnung (3) erstrecken, sondern kann auch am Außenrand eines Werkstücks (3) stehen.For the preferred application of the door flares, it is sufficient however, a crimp on the three overhead Detail pages. In the exemplary embodiments shown the segment heads or the flanged edge (11) are convex bent. Alternatively, you can also at least in places be concave or straight. With a modified one Construction of a crimping head (6) can also Outside of a workpiece (3) are processed. The Flanging device (1) does not have to go through a Workpiece opening (3) extend, but can also on Stand outside edge of a workpiece (3).

In weiterer Abwandlung kann die Stellvorrichtung (22) anders ausgebildet sein. Anstelle eines Kurbeltriebs (23) kann z.B. auch ein Antrieb mit mehreren gleichzeitig betätigten Stellzylindern oder dergleichen anderen geeigneten Antriebselementen vorhanden sein. Die Führung der Segmente kann ebenfalls anders gestaltet sein. In a further modification, the adjusting device (22) be trained differently. Instead of a crank mechanism (23) can e.g. also a drive with several at the same time actuated actuating cylinders or the like suitable drive elements. The leadership the segments can also be designed differently.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

11
BördelvorrichtungCrimping device
22nd
Werkstück, TüreWorkpiece, door
33rd
Öffnung, FensterausschnittOpening, window opening
44th
WerkstückaufnahmeWorkpiece holder
55
Gestellframe
66
BördelkopfCrimping head
77
HubantriebLinear actuator
88th
Bördelstahl, VorbördelnFlaring steel, pre-flaring
99
Bördelstahl, FertigbördelnFlare steel, finish flare
1010th
BördelnaseFlare nose
1111
BördelkanteFlanged edge
1212th
Segmentsegment
1313
Segmentsegment
1414
Segmentsegment
1515
Segmentsegment
1616
Segmentsegment
1717th
KontaktflächeContact area
1818th
Träger, SchieberCarrier, slider
1919th
Führungguide
2020th
Träger, SchwenkplatteCarrier, swivel plate
2121
SchwenklagerSwivel bearing
2222
StellvorrichtungActuator
2323
Stellantrieb, KurbeltriebActuator, crank drive
2424th
Kurbelwellecrankshaft
2525th
Kurbelwelle, HilfswelleCrankshaft, auxiliary shaft
2626
DrehantriebRotary drive
2727
KurbelstangeCrank rod
2828
KurbelstangeCrank rod
2929
KurbelstangeCrank rod
3030th
KurbelstangeCrank rod
3131
KurbelstangeCrank rod
3232
Auslegerboom
3333
ZustellachsenInfeed axes
3434
Blechrand, BlechinnenkanteSheet edge, inside sheet edge
3535
KoppelstangeCoupling rod

Claims (10)

  1. Flanging device for inner flanging, with a flanging head (6) which has one or more flanging steels (8, 9) subdivided into segments (12, 13, 14, 15, 16) and having a flanging edge (11), with a stroke drive (7) for generating the flanging stroke and with an actuating device (22) for retracting and extending the segments (12, 13, 14, 15, 16), the actuating device (22) having an actuating drive (23) which moves all the segments (12, 13, 14, 15, 16) simultaneously, characterized in that the segments (12, 13, 14, 15, 16) have adapted oblique contact faces (17), with which they butt flush one against the other in the extended operating position and form, at at least one corner region, a peripheral uninterrupted flanging edge (11).
  2. Flanging device according to Claim 1, characterized in that the actuating drive (22) moves the segments (12, 13, 14, 15, 16) with advancing travels of different length and at different advancing speeds.
  3. Flanging device according to Claim 1 or 2, characterized in that the contact faces (17) have a wedge angle α of 20°-50°, preferably 30°-45°, to the flanging edge (11).
  4. Flanging device according to Claim 1, 2 or 3, characterized in that the actuating drive (23) is designed as a crank mechanism.
  5. Flanging device according to Claim 4, characterized in that the crank mechanism (23) has one or more jointly driven crankshafts (24, 25), to which the segments (12, 13, 14, 15, 16) are connected via connecting rods (27, 28, 29, 30, 31) and jibs (32).
  6. Flanging device according to Claim 5, characterized in that the connecting rods (27, 28, 29, 30, 31) are arranged at different heights.
  7. Flanging device according to one of Claims 4 to 6, characterized in that the connecting rods (27, 28, 29, 30, 31) and jibs (32) have different lengths.
  8. Flanging device according to one of Claims 4 to 7, characterized in that the connecting rods (27, 28, 29, 30, 31) and jibs (32) assume a stretched-out attitude in the operating position.
  9. Flanging device according to one of Claims 1 to 8, characterized in that the segments (12, 13, 14, 15, 16) are guided in a straight line or are mounted pivotably.
  10. Flanging device according to one of Claims 1 to 9, characterized in that the axes of advance (33) of the segments (12, 13, 14, 15, 16) are at essentially identical angles to one another.
EP97932767A 1996-07-16 1997-07-01 Hemming device Expired - Lifetime EP0918582B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29612192U DE29612192U1 (en) 1996-07-16 1996-07-16 Crimping device
DE29612192U 1996-07-16
PCT/EP1997/003428 WO1998002260A1 (en) 1996-07-16 1997-07-01 Bordering device

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EP0918582A1 EP0918582A1 (en) 1999-06-02
EP0918582B1 true EP0918582B1 (en) 2000-05-03

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EP97932767A Expired - Lifetime EP0918582B1 (en) 1996-07-16 1997-07-01 Hemming device

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US (1) US6223581B1 (en)
EP (1) EP0918582B1 (en)
JP (1) JP2000514359A (en)
DE (2) DE29612192U1 (en)
ES (1) ES2145620T3 (en)
WO (1) WO1998002260A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6418771B1 (en) * 2000-10-23 2002-07-16 Valiant Corporation Interior hemming machine
US6460392B2 (en) * 2001-02-28 2002-10-08 Unova Ip Corp. Flange bending apparatus
DE202014105862U1 (en) 2014-12-04 2016-03-03 Kuka Systems Gmbh Folding tool and folding device
CN104772396A (en) * 2015-04-21 2015-07-15 重庆长安汽车股份有限公司 Double-bloomed drive wedge mechanism for automobile roof skylight

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1242627A (en) * 1916-01-25 1917-10-09 James M Winningham Pipe-coupling machine.
US1722556A (en) * 1925-10-14 1929-07-30 Cameron Can Machinery Company Can-body-forming machine
US1823047A (en) * 1926-12-08 1931-09-15 American Can Co Method of and apparatus for beading of formed sheet metal articles
US2720241A (en) * 1952-10-10 1955-10-11 Carando Machine Works Bead forming machine for barrel drums
FR1524200A (en) * 1967-03-08 1968-05-10 Renault Manufacturing process of vehicle doors
US3621699A (en) * 1969-07-15 1971-11-23 Tubal Ind Inc Methods and apparatus for manufacturing shadow masks for colored television tubes
US4835825A (en) * 1988-04-07 1989-06-06 Warner Kenneth M Machine for manufacturing a roof vent having a lead base
FR2645053B1 (en) * 1989-04-04 1994-11-25 Renault OPEN TABLE CRIMPING MOUNTING
FR2651699B1 (en) 1989-09-11 1992-02-07 Steelweld France FOLDING SYSTEM FOR THE EDGES OF A MOTOR VEHICLE DOOR.
DE4330683C2 (en) * 1993-09-10 1995-07-27 Audi Ag Folding device
WO1995021711A1 (en) * 1994-02-14 1995-08-17 Western Atlas U.K. Limited Improved hemming machine
IT1278350B1 (en) * 1995-02-02 1997-11-20 Comau Spa DEVICE FOR SCRAPING PRINTED METAL SHEET ELEMENTS.

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DE29612192U1 (en) 1997-10-09
DE59701600D1 (en) 2000-06-08
ES2145620T3 (en) 2000-07-01
WO1998002260A1 (en) 1998-01-22
US6223581B1 (en) 2001-05-01
JP2000514359A (en) 2000-10-31
EP0918582A1 (en) 1999-06-02

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