EP0484934A2 - Device for forming beads at the end of tubular work pieces made of sheet - Google Patents

Device for forming beads at the end of tubular work pieces made of sheet Download PDF

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Publication number
EP0484934A2
EP0484934A2 EP91118951A EP91118951A EP0484934A2 EP 0484934 A2 EP0484934 A2 EP 0484934A2 EP 91118951 A EP91118951 A EP 91118951A EP 91118951 A EP91118951 A EP 91118951A EP 0484934 A2 EP0484934 A2 EP 0484934A2
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EP
European Patent Office
Prior art keywords
workpiece
pressure
tubes
contact surface
pressure device
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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
EP91118951A
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German (de)
French (fr)
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EP0484934B1 (en
EP0484934A3 (en
Inventor
Max Biland
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MABI AG Isoliermaschinen
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MABI AG Isoliermaschinen
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Priority to AT91118951T priority Critical patent/ATE99577T1/en
Publication of EP0484934A2 publication Critical patent/EP0484934A2/en
Publication of EP0484934A3 publication Critical patent/EP0484934A3/en
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Publication of EP0484934B1 publication Critical patent/EP0484934B1/en
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    • 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
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling

Definitions

  • the invention relates to the genus according to a device for molding end beads on tubular workpieces made of sheet metal, with paired beading rollers and with a contact surface for the workpiece to be machined, the beading rollers being rotatably mounted on the contact surface with an axis of rotation orthogonal to the contact surface and being motor-driven .
  • - Pre-shaped sheet metal jacket parts for cladding thermal insulation materials, in particular on pipes, are particularly suitable as workpieces.
  • the device is suitable for processing pipe fittings and segments that can be assembled into bends. If the corrugated sheet metal jacket parts are mounted on the outside of a thermally insulated pipe, the corrugations of the sheet metal jacket parts interlock and prevent the entry of dirt and moisture.
  • the contact surface of the device is aligned vertically.
  • the workpiece clamped between the bead rolls must be held and guided manually during the machining process.
  • the handling of the known device requires experience of the operating personnel. There is a considerable risk of injury when handling the sharp-edged sheet metal parts. Finally, the operating speed of the device is in need of improvement.
  • the invention has for its object to further develop a generic device so that a high processing speed can be achieved with simple handling.
  • the invention teaches that the contact surface is aligned horizontally and forms a support table for the workpiece, that a vertically movable pressure device with at least one pressure element is arranged above the support table, which lies under the weight of the pressure device on the upper edge of the workpiece, and that at least one support roller which can be placed on the lateral surface of the workpiece to be machined and whose distance from the pair of beads is adjustable is arranged on the contact surface on both sides of the pair of beads.
  • the pressure device has a gallows-shaped swivel arm with a vertically, vertically movable swivel axis and with a cantilever arm connected to the swivel axis by a sliding seat, and that a press-on element is rotatably and pivotably connected to the cantilever arm, which can be fixed on the workpiece is.
  • the pressure element that is firmly attached to the workpiece is carried along by the rotational movement of the workpiece and executes a rotary movement. Due to the pivoting mobility, the pressure element can be adapted to the inclination of the top face of the workpiece.
  • the invention teaches that the pressure element is designed as a bar with stop blocks which can be moved thereon and which grip the workpiece on the outside and is connected to the cantilever arm of the pressure device by means of a cardan joint.
  • the pressure device has a vertically movable cross-beam and two tubes rotatably held on the cross-beam, the tubes extending parallel to the support table and forming pressure elements which can be set in rotation by the workpiece rotating during processing .
  • the tubes only rest on one edge of the workpiece.
  • the distance between the tubes should be adjustable to allow the processing of workpieces with different diameters.
  • a structurally preferred embodiment of the invention provides that the tubes are mounted on sliding shoes which can be displaced on the crossbar.
  • the length of the pipes should also be able to be influenced.
  • the tubes are therefore expediently designed as telescopic tubes or axially displaceable in the bearing point.
  • the pressure elements lie under the weight of the pressure device on the upper edge of the workpiece. An easier and less unhindered workpiece change is possible if the pressure device is connected to a pneumatic one or hydraulically operated lifting device and is therefore vertically adjustable for the purpose of workpiece change.
  • the invention teaches that the support rollers are arranged on axially adjustable feed elements. A pair of support rollers can be adjusted to the machining gap of the pair of beading rollers, the arrangement expediently being such that the adjustment movement takes place at right angles to the connecting line between the axes of rotation of the beading rollers. A particularly good support function is achieved when the support rollers are positioned close to the engagement area of the beading rollers.
  • additional support rollers can be provided on the support table, at equidistant intervals. It goes without saying that these additional support rollers are also arranged on axially adjustable feed elements.
  • a further advantageous embodiment of the device according to the invention is characterized in that the pressure device comprises interchangeable weights. By selecting suitable weights, the contact force of the pressure device can be adapted to the workpiece.
  • the device according to the invention is characterized by simple handling. Manual guidance of the workpiece during workpiece machining is not necessary even with larger workpiece diameters. With the device according to the invention, pipe fittings and segments of different geometry can be processed in rapid succession. The device is therefore particularly suitable for locksmith work that must be carried out on the construction site.
  • the device shown in the figures is intended for forming and beading at the end on tubular workpieces made of sheet metal. These workpieces are, in particular, preformed sheet metal parts from which cladding for thermal insulation on pipes is produced. Especially straight pieces and segments that can be assembled into pipe bends come into consideration.
  • the basic structure of the device includes a contact surface 1 for the workpiece 2 to be machined and paired bead rolls 3, which are rotatably mounted on the contact surface 1 with an axis of rotation 4 orthogonal to the contact surface and can be driven by a drive device, not shown.
  • the bead rolls 3 are known Way adjustable and adjustable relative to each other.
  • the contact surface 1 is aligned horizontally and forms a support table for the workpiece.
  • a pressing device 5 can be seen with a height-adjustable cantilever arm 6 and with a pressing element 7 which can be pivotally and rotatably attached to the cantilever arm 6.
  • the pressing element 7 can be placed on the workpiece 2 on the top and on this fixable.
  • a support roller 8 is arranged, the distance to the pair of beads 3 is adjustable. During workpiece machining, these support rollers 8 rest on the workpiece on the shell side.
  • the pressure device 5 has a vertical, vertically adjustable pivot axis 9 which is mounted in a stationary ball bushing 10.
  • the cantilever arm 6 of the pressure device is connected at right angles to the pivot axis 9 and connected to it by a sliding seat 11.
  • Cantilever arm 6 and pivot axis 9 form a gallows-shaped pivot arm.
  • the pressure device 5 rests exclusively on the workpiece 2 to be machined under its own weight.
  • Directional arrows indicate that the pressure device 5 can perform adjustment movements in the plane and thereby follow the workpiece movements.
  • a cardan joint 12 is arranged between the cantilever arm 6 of the pressure device and the pressure element 7.
  • the pressure element 7 as a bar with it displaceable stop blocks 13 is formed.
  • the stop blocks 13 can be locked in the holding position by clamping screws 14 on the bar 7 and lie on the outside against the workpiece 2 to be machined.
  • the pressure element 7 follows the rotational movement of the workpiece 2 during workpiece machining.
  • FIGS. 1 and 3 A comparative view of FIGS. 1 and 3 shows that the support rollers 8 are arranged on axially adjustable feed elements 15.
  • the feed elements 15 are axially adjustable at right angles to the connecting line 16 between the axes of rotation 4 of the pair of beads 3.
  • the feed elements 15 are designed as strip-shaped components which can be fixed on the support table 1 by means of clamping screws.
  • the pressure device 5 arranged above the horizontal support table 1 has a vertically movable crossbar 17 and two tubes 18 which are rotatably held on the crossbar.
  • the tubes 18 extend parallel to the support table and form pressure elements. which rest on an upper edge of the workpiece, not shown here, and can be set in rotation by the workpiece rotating during workpiece machining.
  • Slidable shoes 19 are provided on the crossbar 17 for mounting the tubes 18. The distance between the tubes 18 can be adjusted and changed by moving the sliding shoes 19.
  • the tubes 18 are designed as telescopic tubes or in the Slide shoes 19 axially displaceable. As a result, the length of the tubes 18 can be adapted accordingly to the workpiece.
  • the crossbar can be rotated and locked in a desired angular position.
  • support rollers 8, 8 ' can be placed on the outer surface of the workpiece to be machined, the distance from which is adjustable to the pair of beading rollers 3.
  • the support rollers 8, 8 ' are mounted on axially adjustable feed elements 15, 15'.
  • a pair of support rollers 8 ' can be set to the machining gap of the pair of beads 3.
  • the feed elements 15 'of this pair of beads 8' are axially adjustable at right angles to the connecting line between the axes of rotation of the pair of beads 3.
  • the pressing device 5 comprises interchangeable weight pieces 20, by the selection of which the pressing force on the workpiece can be adjusted.
  • a pneumatically or hydraulically operating lifting device 21 is also provided. The pressure device 5 is connected to the lifting device 21 and is therefore vertically adjustable for the purpose of changing the workpiece.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Jigs For Machine Tools (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The invention relates to a device for forming beads at the end of tubular work pieces made of sheet. The device has a supporting table with a horizontal bearing surface (1) for the work piece (2) to be processed and beading rollers (3) arranged in pairs which are rotatably mounted on the bearing surface (1) and are motor-driven. Arranged above the supporting table (1) is a vertically moveable pressure application device (5) with at least one pressure element (7) which rests against the top edge of the work piece (2) under the weight of the pressure application device (5). Arranged on the bearing surface (1) on both sides of the pair (3) of beading rollers is at least one supporting roller (8), which can be placed against the circumferential surface of the work piece (2) to be processed and the spacing of which from the pair (3) of beading rollers is adjustable. <IMAGE>

Description

Die Erfindung betrifft der Gattung nach eine Vorrichtung zum Anformen von endseitigen Sicken an rohrförmigen Werkstücken aus Blech, mit paarweise angeordneten Sickenrollen und mit einer Anlagefläche für das zu bearbeitende Werkstück, wobei die Sickenrollen an der Anlagefläche mit zur Anlagefläche orthogonaler Drehachse drehbar gelagert sowie motorisch antreibbar sind. - Als Werkstücke kommen insbesondere vorgeformte Blechmantelteile zur Verkleidung von Wärmedämmstoffen, insbesondere an Rohrleitungen, in Betracht. Die Vorrichtung ist geeignet zur Bearbeitung von Rohrpaßstücken und Segmenten, die zu Bögen zusammensetzbar sind. Werden die gesickten Blechmantelteile an einer wärmegedämmten Rohrleitung außenseitig montiert, so greifen die Sicken der Blechmantelteile ineinander und verhindern den Eintritt von Schmutz und Feuchtigkeit.The invention relates to the genus according to a device for molding end beads on tubular workpieces made of sheet metal, with paired beading rollers and with a contact surface for the workpiece to be machined, the beading rollers being rotatably mounted on the contact surface with an axis of rotation orthogonal to the contact surface and being motor-driven . - Pre-shaped sheet metal jacket parts for cladding thermal insulation materials, in particular on pipes, are particularly suitable as workpieces. The device is suitable for processing pipe fittings and segments that can be assembled into bends. If the corrugated sheet metal jacket parts are mounted on the outside of a thermally insulated pipe, the corrugations of the sheet metal jacket parts interlock and prevent the entry of dirt and moisture.

Im Rahmen der aus der Praxis bekannten Maßnahmen ist die Anlagefläche der Vorrichtung vertikal ausgerichtet. Das zwischen den Sickenrollen eingespannte Werkstück muß während des Bearbeitungsvorganges manuell gehalten und geführt werden. Die Handhabung der bekannten Vorrichtung erfordert Erfahrung des Bedienungspersonals. Es besteht eine beachtliche Verletzungsgefahr bei der Handhabung der scharfkantigen Blechteile. Schließlich ist die Arbeitsgeschwindigkeit der Vorrichtung verbesserungsbedürftig.As part of the measures known from practice, the contact surface of the device is aligned vertically. The workpiece clamped between the bead rolls must be held and guided manually during the machining process. The handling of the known device requires experience of the operating personnel. There is a considerable risk of injury when handling the sharp-edged sheet metal parts. Finally, the operating speed of the device is in need of improvement.

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Vorrichtung so weiter auszubilden, daß bei einfacher Handhabung eine hohe Bearbeitungsgeschwindigkeit erreichbar ist.The invention has for its object to further develop a generic device so that a high processing speed can be achieved with simple handling.

Zur Lösung dieser Aufgabe lehrt die Erfindung, daß die Anlagefläche horizontal ausgerichtet ist und einen Auflagetisch für das Werkstück bildet, daß oberhalb des Auflagetisches eine vertikal bewegliche Andruckeinrichtung mit mindestens einem Andruckelement angeordnet ist, welches unter dem Gewicht der Andruckeinrichtung an der Oberkante des Werkstückes anliegt, und daß an der Anlagefläche beidseits des Sickenrollenpaares jeweils mindestens eine an die Mantelfläche des zu bearbeitenden Werkstückes anlegbare Stützrolle angeordnet ist, deren Abstand zu dem Sickenrollenpaar einstellbar ist.To achieve this object, the invention teaches that the contact surface is aligned horizontally and forms a support table for the workpiece, that a vertically movable pressure device with at least one pressure element is arranged above the support table, which lies under the weight of the pressure device on the upper edge of the workpiece, and that at least one support roller which can be placed on the lateral surface of the workpiece to be machined and whose distance from the pair of beads is adjustable is arranged on the contact surface on both sides of the pair of beads.

Eine Ausführungsform der erfindungsgemäßen Lehre sieht vor, daß die Andruckeinrichtung einen galgenförmigen Schwenkarm mit lotrechter, vertikal beweglicher Schwenkachse und mit einem durch einen Schiebesitz an die Schwenkachse angeschlossenen Kragarm aufweist und daß an den Kragarm ein Andruckelement drehbar sowie schwenkbeweglich angeschlossen ist, welches an dem Werkstück fixierbar ist. Bei der Werkstückbearbeitung wird das fest an dem Werkstück anliegende Andruckelement von der Rotationsbewegung des Werkstückes mitgenommen und führt eine Drehbewegung aus. Durch die Schwenkbeweglichkeit ist das Andruckelement an die Neigung der oberseitigen Stirnfläche des Werkstückes anpaßbar. Eine genaue Ausrichtung der Andruckeinrichtung in bezug auf die Rotationsachse des Werkstückes ist nicht erforderlich. Ein unrunder Lauf des Werkstückes während der Werkstückbearbeitung stört nicht. In weiterer Ausgestaltung lehrt die Erfindung, daß das Andruckelement als Leiste mit darauf verschiebbaren, das Werkstück außenseitig fassenden Anschlagklötzen ausgebildet und durch ein Kardangelenk an den Kragarm der Andruckeinrichtung angeschlossen ist.An embodiment of the teaching according to the invention provides that the pressure device has a gallows-shaped swivel arm with a vertically, vertically movable swivel axis and with a cantilever arm connected to the swivel axis by a sliding seat, and that a press-on element is rotatably and pivotably connected to the cantilever arm, which can be fixed on the workpiece is. During workpiece machining, the pressure element that is firmly attached to the workpiece is carried along by the rotational movement of the workpiece and executes a rotary movement. Due to the pivoting mobility, the pressure element can be adapted to the inclination of the top face of the workpiece. A precise alignment of the pressure device with respect on the axis of rotation of the workpiece is not necessary. An uneven running of the workpiece during workpiece machining does not interfere. In a further embodiment, the invention teaches that the pressure element is designed as a bar with stop blocks which can be moved thereon and which grip the workpiece on the outside and is connected to the cantilever arm of the pressure device by means of a cardan joint.

Eine andere Ausführungsform der erfindungsgemäßen Vorrichtung sieht vor, daß die Andruckeinrichtung eine vertikal bewegliche Quertraverse und zwei drehbeweglich an der Quertraverse gehaltene Rohre aufweist, wobei die Rohre sich parallel zum Auflagetisch erstrecken und Andruckelemente bilden, die durch das bei der Bearbeitung umlaufende Werkstück in Rotation versetzbar sind. Die Rohre liegen nur an einer Kante des Werkstückes auf. Der Abstand zwischen den Rohren sollte einstellbar sein, um die Bearbeitung von Werkstücken mit unterschiedlichem Durchmesser zu ermöglichen. Eine konstruktiv bevorzugte Ausführungsform der Erfindung sieht vor, daß die Rohre an auf der Quertraverse verschiebbaren Gleitschuhen gelagert sind. Auch die Länge der Rohre sollte beeinflußbar sein. Zweckmäßigerweise sind die Rohre daher als Teleskoprohre ausgebildet oder in der Lagerstelle axial verschiebbar.Another embodiment of the device according to the invention provides that the pressure device has a vertically movable cross-beam and two tubes rotatably held on the cross-beam, the tubes extending parallel to the support table and forming pressure elements which can be set in rotation by the workpiece rotating during processing . The tubes only rest on one edge of the workpiece. The distance between the tubes should be adjustable to allow the processing of workpieces with different diameters. A structurally preferred embodiment of the invention provides that the tubes are mounted on sliding shoes which can be displaced on the crossbar. The length of the pipes should also be able to be influenced. The tubes are therefore expediently designed as telescopic tubes or axially displaceable in the bearing point.

Die Andruckelemente liegen unter dem Gewicht der Andruckeinrichtung an der Oberkante des Werkstückes an. Ein leichterer und durch die Andruckeinrichtung nicht behinderter Werkstückwechsel ist möglich, wenn die Andruckeinrichtung an eine pneumatisch oder hydraulisch arbeitende Hubvorrichtung angeschlossen und dadurch zum Zwecke des Werkstückwechsels vertikal verstellbar ist. In weiterer Ausgestaltung lehrt die Erfindung, daß die Stützrollen an axial verstellbaren Zustellelementen angeordnet sind. Dabei ist ein Stützrollenpaar zum Bearbeitungsspalt des Sickenrollenpaares anstellbar, wobei die Anordnung zweckmäßigerweise so getroffen ist, daß die Verstellbewegung im rechten Winkel zu der Verbindungslinie zwischen den Drehachsen der Sickenrollen erfolgt. Eine besonders gute Stützfunktion wird dann erreicht, wenn die Stützrollen nah am Eingriffsbereich der Sickenrollen positioniert sind. Zur Verbesserung des Rundlaufes des zu bearbeitenden Werkstückes können weitere Stützrollen, untereinander in äquidistanten Abständen, am Auflagetisch vorgesehen sein. Es versteht sich, daß auch diese zusätzlichen Stützrollen an axial verstellbaren Zustellelementen angeordnet sind. Eine weitere vorteilhafte Ausgestaltung der erfindungsgemäßen Vorrichtung ist dadurch gekennzeichnet, daß die Andruckvorrichtung auswechselbare Gewichtsstücke umfaßt. Durch Auswahl geeigneter Gewichtsstücke ist die Auflagekraft der Andruckeinrichtung dem Werkstück entsprechend anpaßbar.The pressure elements lie under the weight of the pressure device on the upper edge of the workpiece. An easier and less unhindered workpiece change is possible if the pressure device is connected to a pneumatic one or hydraulically operated lifting device and is therefore vertically adjustable for the purpose of workpiece change. In a further embodiment, the invention teaches that the support rollers are arranged on axially adjustable feed elements. A pair of support rollers can be adjusted to the machining gap of the pair of beading rollers, the arrangement expediently being such that the adjustment movement takes place at right angles to the connecting line between the axes of rotation of the beading rollers. A particularly good support function is achieved when the support rollers are positioned close to the engagement area of the beading rollers. To improve the concentricity of the workpiece to be machined, additional support rollers can be provided on the support table, at equidistant intervals. It goes without saying that these additional support rollers are also arranged on axially adjustable feed elements. A further advantageous embodiment of the device according to the invention is characterized in that the pressure device comprises interchangeable weights. By selecting suitable weights, the contact force of the pressure device can be adapted to the workpiece.

Die erfindungsgemäße Vorrichtung zeichnet sich durch einfache Handhabung aus. Eine manuelle Führung des Werkstückes während der Werkstückbearbeitung ist auch bei größeren Werkstückdurchmessern nicht erforderlich. Mit der erfindungsgemäßen Vorrichtung lassen sich in rascher Folge nacheinander Rohrpaßstücke und Segmente unterschiedlicher Geometrie bearbeiten. Die Vorrichtung ist damit insbesondere für Schlosserarbeiten geeignet, die auf der Baustelle durchgeführt werden müssen.The device according to the invention is characterized by simple handling. Manual guidance of the workpiece during workpiece machining is not necessary even with larger workpiece diameters. With the device according to the invention, pipe fittings and segments of different geometry can be processed in rapid succession. The device is therefore particularly suitable for locksmith work that must be carried out on the construction site.

Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlicher erläutert. Es zeigen schematisch

Fig. 1
eine perspektivische Darstellung der erfindungsgemäßen Vorrichtung.
Fig. 2
eine Seitenansicht der in Fig. 1 dargestellten Vorrichtung,
Fig. 3
eine Draufsicht auf die Vorrichtung gemäß Fig. 1,
Fig. 4
eine weitere Ausgestaltung der erfindungsgemäßen Vorrichtung, ebenfalls in perspektivischer Darstellung.
In the following, the invention will be explained in more detail with reference to a drawing showing only one embodiment. They show schematically
Fig. 1
a perspective view of the device according to the invention.
Fig. 2
2 shows a side view of the device shown in FIG. 1,
Fig. 3
2 shows a plan view of the device according to FIG. 1,
Fig. 4
a further embodiment of the device according to the invention, also in perspective.

Die in den Figuren dargestellte Vorrichtung ist zum Anformen und endseitigen Sicken an rohrförmigen Werkstücken aus Blech bestimmt. Bei diesen Werkstücken handelt es sich insbesondere um vorgeformte Blechteile, aus denen Verkleidungen für Wärmedämmungen an Rohrleitungen hergestellt werden. In Betracht kommen vor allem gerade Paßstücke sowie Segmente, die zu Rohrbögen zusammensetzbar sind. Zum grundsätzlichen Aufbau der Vorrichtung gehören eine Anlagefläche 1 für das zu bearbeitende Werkstück 2 und paarweise angeordnete Sickenrollen 3, die an der Anlagefläche 1 mit zur Anlagefläche orthogonaler Drehachse 4 drehbar gelagert sowie durch eine nicht dargestellte Antriebsvorrichtung motorisch antreibbar sind. Die Sickenrollen 3 sind in bekannter Weise relativ zueinander verstell- und justierbar. Die Anlagefläche 1 ist horizontal ausgerichtet und bildet einen Auflagetisch für das Werkstück. Oberhalb des Auflagetisches 1 erkennt man bei der in den Figuren 1 bis 3 dargestellten Ausführung eine Andruckeinrichtung 5 mit einem höhenverstellbaren Kragarm 6 und mit einem schwenkbeweglich sowie drehbar an dem Kragarm 6 befestigten Andruckelement 7. Das Andruckelement 7 ist oberseitig an das Werkstück 2 anlegbar und an diesem fixierbar. An der Anlagefläche 1 beidseits des Sickenrollenpaares 3 ist jeweils eine Stützrolle 8 angeordnet, deren Abstand zu dem Sickenrollenpaar 3 einstellbar ist. Bei der Werkstückbearbeitung liegen diese Stützrollen 8 an dem Werkstück mantelseitig an.The device shown in the figures is intended for forming and beading at the end on tubular workpieces made of sheet metal. These workpieces are, in particular, preformed sheet metal parts from which cladding for thermal insulation on pipes is produced. Especially straight pieces and segments that can be assembled into pipe bends come into consideration. The basic structure of the device includes a contact surface 1 for the workpiece 2 to be machined and paired bead rolls 3, which are rotatably mounted on the contact surface 1 with an axis of rotation 4 orthogonal to the contact surface and can be driven by a drive device, not shown. The bead rolls 3 are known Way adjustable and adjustable relative to each other. The contact surface 1 is aligned horizontally and forms a support table for the workpiece. Above the support table 1, in the embodiment shown in FIGS. 1 to 3, a pressing device 5 can be seen with a height-adjustable cantilever arm 6 and with a pressing element 7 which can be pivotally and rotatably attached to the cantilever arm 6. The pressing element 7 can be placed on the workpiece 2 on the top and on this fixable. On the contact surface 1 on both sides of the pair of beads 3, a support roller 8 is arranged, the distance to the pair of beads 3 is adjustable. During workpiece machining, these support rollers 8 rest on the workpiece on the shell side.

Aus einer vergleichenden Betrachtung insbesondere der Fig. 1 und 2 wird deutlich, daß die Andruckeinrichtung 5 eine lotrechte, vertikal verstellbare Schwenkachse 9 aufweist, die in einer ortsfesten Kugelbuchse 10 gelagert ist. Der Kragarm 6 der Andruckeinrichtung ist rechtwinklig an die Schwenkachse 9 angeschlossen und durch einen Schiebesitz 11 mit dieser verbunden. Kragarm 6 und Schwenkachse 9 bilden insofern einen galgenförmigen Schwenkarm. Die Andruckeinrichtung 5 liegt ausschließlich unter Eigengewicht an dem zu bearbeitenden Werkstück 2 an. Durch Richtungspfeile ist angedeutet, daß die Andruckeinrichtung 5 Verstellbewegungen in der Ebene ausführen und dadurch den Werkstückbewegungen folgen kann. Zwischen dem Kragarm 6 der Andruckeinrichtung und dem Andruckelement 7 ist ein Kardangelenk 12 angeordnet. Ferner erkennt man, daß das Andruckelement 7 als Leiste mit darauf verschiebbaren Anschlagklötzen 13 ausgebildet ist. Die Anschlagklötze 13 sind in der Haltestellung durch Spannschrauben 14 an der Leiste 7 arretierbar und liegen außenseitig an dem zu bearbeitenden Werkstück 2 an. Das Andruckelement 7 folgt der Rotationsbewegung des Werkstückes 2 während der Werkstückbearbeitung.From a comparative examination, in particular of FIGS. 1 and 2, it becomes clear that the pressure device 5 has a vertical, vertically adjustable pivot axis 9 which is mounted in a stationary ball bushing 10. The cantilever arm 6 of the pressure device is connected at right angles to the pivot axis 9 and connected to it by a sliding seat 11. Cantilever arm 6 and pivot axis 9 form a gallows-shaped pivot arm. The pressure device 5 rests exclusively on the workpiece 2 to be machined under its own weight. Directional arrows indicate that the pressure device 5 can perform adjustment movements in the plane and thereby follow the workpiece movements. A cardan joint 12 is arranged between the cantilever arm 6 of the pressure device and the pressure element 7. It can also be seen that the pressure element 7 as a bar with it displaceable stop blocks 13 is formed. The stop blocks 13 can be locked in the holding position by clamping screws 14 on the bar 7 and lie on the outside against the workpiece 2 to be machined. The pressure element 7 follows the rotational movement of the workpiece 2 during workpiece machining.

Einer vergleichenden Betrachtung der Fig. 1 und 3 entnimmt man, daß die Stützrollen 8 an axial verstellbaren Zustellelementen 15 angeordnet sind. Die Zustellelemente 15 sind axial im rechten Winkel zu der Verbindungslinie 16 zwischen den Drehachsen 4 des Sickenrollenpaares 3 verstellbar. Im Ausführungsbeispiel sind die Zustellelemente 15 als leistenförmige Bauteile ausgebildet, die durch Spannschrauben an dem Auflagetisch 1 feststellbar sind.A comparative view of FIGS. 1 and 3 shows that the support rollers 8 are arranged on axially adjustable feed elements 15. The feed elements 15 are axially adjustable at right angles to the connecting line 16 between the axes of rotation 4 of the pair of beads 3. In the exemplary embodiment, the feed elements 15 are designed as strip-shaped components which can be fixed on the support table 1 by means of clamping screws.

Bei der in Fig. 4 dargestellten Ausführungsform weist die oberhalb des horizontalen Auflagetisches 1 angeordnete Andruckeinrichtung 5 eine vertikal bewegliche Quertraverse 17 und zwei drehbeweglich an der Quertraverse gehaltene Rohre 18 auf. Die Rohre 18 erstrecken sich parallel zum Auflagetisch und bilden Andruckelemente. die an einer Oberkante des hier nicht dargestellten Werkstücks aufliegen und durch das bei der Werkstückbearbeitung umlaufende Werkstück in Rotation versetzbar sind. Zur Lagerung der Rohre 18 sind an der Quertraverse 17 verschiebbare Gleitschuhe 19 vorgesehen. Durch Verschieben der Gleitschuhe 19 ist der Abstand zwischen den Rohren 18 einstell- und veränderbar. Die Rohre 18 sind als Teleskoprohre ausgebildet oder in den Gleitschuhen 19 axial verschiebbar. Dadurch ist die Länge der Rohre 18 dem Werkstück entsprechend anpaßbar. Zum Zwecke der Justierung der Andruckeinrichtung 5 ist die Quertraverse drehbeweglich und in einer gewünschten Winkelstellung arretierbar. Beidseits des motorisch angetriebenen Sickenrollenpaares 3 sind an die Mantelfläche des zu bearbeitenden Werkstückes anlegbare Stützrollen 8,8' vorgesehen, deren Abstand zu dem Sickenrollenpaar 3 einstellbar ist. Dazu sind die Stützrollen 8,8' an axial verstellbaren Zustellelementen 15, 15' gelagert. Ein Stützrollenpaar 8' ist zum Bearbeitungsspalt des Sickenrollenpaares 3 anstellbar. Die Zustellelemente 15' dieses Sickenrollenpaares 8' sind axial im rechten Winkel zu der Verbindungslinie zwischen den Drehachsen des Sickenrollenpaares 3 verstellbar. Weitere, ebenfalls an axial verstellbaren Zustellelementen 15 gelagerte Stützrollen 8 sind in äquidistanten Abständen am Auflagetisch 1 angebracht. Sie dienen der Verbesserung des Rundlaufes des zu bearbeitenden Werkstückes. Schließlich entnimmt man der Fig. 4, daß die Andruckeinrichtung 5 auswechselbare Gewichtsstücke 20 umfaßt, durch deren Auswahl die Andruckkraft auf das Werkstück einstellbar ist. Ferner ist eine pneumatisch oder hydraulisch arbeitende Hubvorrichtung 21 vorgesehen. Die Andruckeinrichtung 5 ist an die Hubvorrichtung 21 angeschlossen und dadurch zum Zwecke eines Werkstückwechsels vertikal verstellbar.In the embodiment shown in FIG. 4, the pressure device 5 arranged above the horizontal support table 1 has a vertically movable crossbar 17 and two tubes 18 which are rotatably held on the crossbar. The tubes 18 extend parallel to the support table and form pressure elements. which rest on an upper edge of the workpiece, not shown here, and can be set in rotation by the workpiece rotating during workpiece machining. Slidable shoes 19 are provided on the crossbar 17 for mounting the tubes 18. The distance between the tubes 18 can be adjusted and changed by moving the sliding shoes 19. The tubes 18 are designed as telescopic tubes or in the Slide shoes 19 axially displaceable. As a result, the length of the tubes 18 can be adapted accordingly to the workpiece. For the purpose of adjusting the pressure device 5, the crossbar can be rotated and locked in a desired angular position. On both sides of the motorized beading roller pair 3, support rollers 8, 8 'can be placed on the outer surface of the workpiece to be machined, the distance from which is adjustable to the pair of beading rollers 3. For this purpose, the support rollers 8, 8 'are mounted on axially adjustable feed elements 15, 15'. A pair of support rollers 8 'can be set to the machining gap of the pair of beads 3. The feed elements 15 'of this pair of beads 8' are axially adjustable at right angles to the connecting line between the axes of rotation of the pair of beads 3. Further support rollers 8, also supported on axially adjustable feed elements 15, are attached to the support table 1 at equidistant intervals. They serve to improve the concentricity of the workpiece to be machined. Finally, it can be seen from FIG. 4 that the pressing device 5 comprises interchangeable weight pieces 20, by the selection of which the pressing force on the workpiece can be adjusted. A pneumatically or hydraulically operating lifting device 21 is also provided. The pressure device 5 is connected to the lifting device 21 and is therefore vertically adjustable for the purpose of changing the workpiece.

Claims (9)

Vorrichtung zum Anformen von endseitigen Sicken an rohrförmigen Werkstücken aus Blech, mit paarweise angeordneten Sickenrollen (3) und mit einer Anlagefläche (1) für das zu bearbeitende Werkstück (2), wobei die Sickenrollen (3) an der Anlagefläche (1) mit zur Anlagefläche orthogonaler Drehachse (4) drehbar gelagert sowie motorisch antreibbar sind, dadurch gekennzeichnet, daß die Anlagefläche (1) horizontal ausgerichtet ist und einen Auflagetisch für das Werkstück (2) bildet, daß oberhalb des Auflagetisches (1) eine vertikal bewegliche Andruckeinrichtung (5) mit mindestens einem Andruckelement (7, 18) angeordnet ist, welches unter dem Gewicht der Andruckeinrichtung (5) an der Oberkante des Werkstückes (2) anliegt, und daß an der Anlagefläche (1) beidseits des Sickenrollenpaares (3) jeweils mindestens eine an die Mantelfläche des zu bearbeitenden Werkstückes (2) anlegbare Stützrolle (8, 8') angeordnet ist, deren Abstand zu dem Sickenrollenpaar (3) einstellbar ist.Device for molding end beads on tubular workpieces made of sheet metal, with beading rollers (3) arranged in pairs and with a contact surface (1) for the workpiece to be machined (2), the beading rollers (3) on the contact surface (1) also with the contact surface The orthogonal axis of rotation (4) is rotatably mounted and can be driven by a motor, characterized in that the contact surface (1) is aligned horizontally and forms a support table for the workpiece (2), that a vertically movable pressure device (5) is provided above the support table (1) At least one pressure element (7, 18) is arranged, which rests under the weight of the pressure device (5) on the upper edge of the workpiece (2), and that on the contact surface (1) on both sides of the beading roller pair (3) at least one on the outer surface of the workpiece (2) to be machined support roller (8, 8 ') is arranged, whose distance to the bead roller pair (3) is adjustable. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Andruckeinrichtung (5) einen galgenförmigen Schwenkarm mit lotrechter, vertikal beweglicher Schwenkachse (9) und mit einem durch einen Schiebesitz (11) an die Schwenkachse (9) angeschlossenen Kragarm (6) aufweist und daß an den Kragarm (6) ein Andruckelement (7) drehbar sowie schwenkbeweglich angeschlossen ist, welches an dem Werkstück (2) fixierbar ist.Apparatus according to claim 1, characterized in that the pressure device (5) has a gallows-shaped swivel arm with a vertically, vertically movable swivel axis (9) and with a cantilever arm (6) connected to the swivel axis (9) by a sliding seat (11) and in that the cantilever arm (6) is connected to a pressure element (7) which is rotatable and pivotable and which can be fixed to the workpiece (2). Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Andruckelement (7) als Leiste mit darauf verschiebbaren, das Werkstück (2) außenseitig fassenden Anschlagklötzen (13) ausgebildet und durch ein Kardangelenk (12) an den Kragarm (6) der Andruckeinrichtung (5) angeschlossen ist.Apparatus according to claim 2, characterized in that the pressure element (7) is designed as a bar with stop blocks (13) which can be moved thereon and hold the workpiece (2) on the outside, and by means of a cardan joint (12) on the cantilever arm (6) of the pressure device (5). connected. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Andruckeinrichtung (5) eine vertikal bewegliche Quertraverse (17) und zwei drehbeweglich an der Quertraverse (17) gehaltene Rohre (18) aufweist, wobei die Rohre (18) sich parallel zum Auflagetisch (1) erstrecken und Andruckelemente bilden, die durch das bei der Bearbeitung umlaufende Werkstück (2) in Rotation versetzbar sind.Apparatus according to claim 1, characterized in that the pressure device (5) has a vertically movable crossbar (17) and two tubes (18) rotatably held on the crossbar (17), the tubes (18) being parallel to the support table (1) extend and form pressure elements which can be set in rotation by the workpiece (2) rotating during processing. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Rohre (18) an auf der Quertraverse (17) verschiebbaren Gleitschuhen (19) gelagert sind.Apparatus according to claim 4, characterized in that the tubes (18) are mounted on sliding shoes (19) which can be displaced on the crossbar (17). Vorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die Rohre (18) als Teleskoprohre ausgebildet oder in der Lagerstelle axial verschiebbar sind.Apparatus according to claim 4 or 5, characterized in that the tubes (18) are designed as telescopic tubes or are axially displaceable in the bearing point. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Andruckeinrichtung (5) an eine pneumatisch oder hydraulisch arbeitende Hubvorrichtung (21) angeschlossen und dadurch zum Zwecke eines Werkstückwechsels vertikal verstellbar ist.Device according to one of claims 1 to 6, characterized in that the pressure device (5) is connected to a pneumatically or hydraulically operating lifting device (21) and is thereby vertically adjustable for the purpose of changing the workpiece. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Stützrollen (8, 8') an axial verstellbaren Zustellelementen (15, 15') angeordnet sind, wobei ein Stützrollenpaar (8') zum Bearbeitungsspalt des Sickenrollenpaares (3) anstellbar ist und wobei zur Verbesserung des Rundlaufes des zu bearbeitenden Werkstückes (2) weitere Stützrollen (8) in äquidistanten Abständen vorgesehen sind.Device according to one of claims 1 to 7, characterized in that the support rollers (8, 8 ') are arranged on axially adjustable feed elements (15, 15'), wherein a pair of support rollers (8 ') can be set for the machining gap of the bead roller pair (3) and in order to improve the concentricity of the workpiece (2) to be machined, further support rollers (8) are provided at equidistant intervals. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Andruckeinrichtung (5) auswechselbare Gewichtsstücke (20) umfaßt.Device according to one of claims 1 to 8, characterized in that the pressure device (5) comprises exchangeable weights (20).
EP91118951A 1990-11-06 1991-11-06 Device for forming beads at the end of tubular work pieces made of sheet Expired - Lifetime EP0484934B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91118951T ATE99577T1 (en) 1990-11-06 1991-11-06 DEVICE FOR FORMING END BEADS ON TUBULAR SHEET METAL WORKPIECES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9015247U 1990-11-06
DE9015247U DE9015247U1 (en) 1990-11-06 1990-11-06 Device for forming end beads on tubular sheet metal workpieces

Publications (3)

Publication Number Publication Date
EP0484934A2 true EP0484934A2 (en) 1992-05-13
EP0484934A3 EP0484934A3 (en) 1992-07-29
EP0484934B1 EP0484934B1 (en) 1994-01-05

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EP91118951A Expired - Lifetime EP0484934B1 (en) 1990-11-06 1991-11-06 Device for forming beads at the end of tubular work pieces made of sheet

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EP (1) EP0484934B1 (en)
AT (1) ATE99577T1 (en)
DE (2) DE9015247U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100448491B1 (en) * 2001-09-03 2004-09-13 기아자동차주식회사 Bead Press Device for Pipe Connection

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE571420C (en) * 1931-07-26 1933-02-28 Saechsische Cartonnagen Maschi Machine for beading cups
US2251810A (en) * 1938-08-19 1941-08-05 Quickwork Company Forming and trimming machine
US3595048A (en) * 1969-01-30 1971-07-27 Teddington Bellows Ltd Bellows
DE2700780A1 (en) * 1977-01-10 1978-07-20 Heinz Stehle Sheet metal duct mfr. rolling machine - has complete bend joined from segments by external rolling of ribs on mandrel
DE8708141U1 (en) * 1987-06-09 1987-07-23 Siegwart, Emil, 6605 Friedrichsthal Beading machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE571420C (en) * 1931-07-26 1933-02-28 Saechsische Cartonnagen Maschi Machine for beading cups
US2251810A (en) * 1938-08-19 1941-08-05 Quickwork Company Forming and trimming machine
US3595048A (en) * 1969-01-30 1971-07-27 Teddington Bellows Ltd Bellows
DE2700780A1 (en) * 1977-01-10 1978-07-20 Heinz Stehle Sheet metal duct mfr. rolling machine - has complete bend joined from segments by external rolling of ribs on mandrel
DE8708141U1 (en) * 1987-06-09 1987-07-23 Siegwart, Emil, 6605 Friedrichsthal Beading machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100448491B1 (en) * 2001-09-03 2004-09-13 기아자동차주식회사 Bead Press Device for Pipe Connection

Also Published As

Publication number Publication date
EP0484934B1 (en) 1994-01-05
EP0484934A3 (en) 1992-07-29
ATE99577T1 (en) 1994-01-15
DE59100811D1 (en) 1994-02-17
DE9015247U1 (en) 1991-01-17

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