EP1731237B1 - Metal sheet working machine - Google Patents

Metal sheet working machine Download PDF

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Publication number
EP1731237B1
EP1731237B1 EP06007822A EP06007822A EP1731237B1 EP 1731237 B1 EP1731237 B1 EP 1731237B1 EP 06007822 A EP06007822 A EP 06007822A EP 06007822 A EP06007822 A EP 06007822A EP 1731237 B1 EP1731237 B1 EP 1731237B1
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EP
European Patent Office
Prior art keywords
sheet metal
working machine
metal working
tool
machine according
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EP06007822A
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German (de)
French (fr)
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EP1731237A2 (en
EP1731237A3 (en
Inventor
Andreas Wotke
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Heinz Wotke Gesmbh
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Heinz Wotke Gesmbh
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Publication of EP1731237A3 publication Critical patent/EP1731237A3/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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means

Definitions

  • the invention relates to a sheet metal working machine, with a table for receiving interchangeable bending dies, an over which can be raised and lowered disposed upper cheek for receiving replaceable punch and a movable in the machine direction stop device.
  • Bent sheet metal parts which have both curves and bends, are no longer thinkable from modern designs.
  • a press brake and a curler are needed for the production of such bent sheet metal parts so far at least two different machines are needed, namely a press brake and a curler.
  • the sheet metal part (workpiece) has to be transported back and forth several times between the machines. This is time consuming and costly.
  • the sheet metal part must be repositioned each time in the machine.
  • the DE 37 45 067 C2 discloses a plate bending machine according to the preamble of claim 1.
  • the DE 32 08 851 A1 discloses a three-roll bending press with two lower rolls in a fixed position and an upper roll.
  • the upper roller is reciprocable at both ends by means of steering joints actuated by two pairs of hydraulic pistons.
  • the invention has for its object to provide a sheet metal working machine of the specified type, which is suitable sheet metal parts having bends and curves to produce efficiently.
  • the advantages achieved by the invention are that the sheet metal bent part is no longer transported between two different machines and the sheet metal part usually has to be positioned only once in the machine according to the invention.
  • the integration according to the invention of the tools necessary for the various processing steps, i. a Abkant- and curl into a machine, allows rapid production of bent sheet metal parts with high surface quality, which have both curves and folds.
  • the advantageous embodiment described in claim 2 allows accurate monitoring of the rolling process. If both upper and lower tools are each equipped with a position transducer, the machine controller can detect slippage between the rollers and the bending part and as a result adjust the control of the machine, e.g. the pressure exerted by the upper cheek is changed.
  • a further advantageous embodiment allows the curling of funnels.
  • the upper beam is lowered obliquely, and the stop device has at least two attachment points, which are independently movable at least in width and depth.
  • the further advantageous embodiment in claim 3 makes it possible to adjust the working width of the curl the sheet metal part.
  • the rollers not frictional connected the movement of the sheet metal part is not orthogonal to the roller axes of the retractor.
  • the claim 5 relates to a further advantageous embodiment.
  • the height-adjustable stop table holds the stop device in constant contact with the workpiece. Thereby, an undesirable sagging of the sheet metal bent part by gravity can be prevented.
  • this embodiment allows a change of the Einrollradien according to a predetermined program.
  • the claim 6 describes a particularly advantageous embodiment.
  • the stop device can act as a support if so high forces are necessary for deforming the bent sheet metal part, that the slip between the rollers and the Bechbiegeteil becomes large, since by means of the gripper feed, in particular tensile forces can be transmitted from the drive of the stop device on the sheet metal part. If the stop device NC controlled, this allows a very accurate control of the rolling process.
  • FIG. 1 shown view of the sheet metal processing machine according to the invention shows a table 1, on which a bending bit 2 and the lower tool 6 a retractor are attached. Above this there is a raising and lowering upper cheek 3, on which a bending punch 4 are fastened over the bending die 2 and an upper tool 7 are suspended above the lower tool 6.
  • the lower tool 6 and the upper tool 7 are rotationally driven by means of a geared motor 13.
  • FIG. 2 shows an embodiment in which behind the table 1, an NC-controlled longitudinal and height adjustable stop device 21 is located. It includes, inter alia, a table 5 and the usual drives such as 18.
  • the workpiece 16 located between the bending punch 4 and the bending die 2 is shown.
  • the receptacle for the replaceable punch 4 and the replaceable Biegematritze 2 can be seen. If the upper beam 3 is lowered, this causes a bending of the workpiece 16.
  • Die FIG. 3 shows the embodiment from the other side. Here is the bending tool instead of the To see lower tool 6 and the upper tool 7 of the retractor.
  • the lower tool 6 of the rolling device has two parallel rollers 8, which are rotatably mounted at right angles to the workpiece transport direction.
  • the upper tool 7 located above has a roller 9, which is arranged rotatable parallel to the two lower rollers 8. It is also possible to equip the upper tool 7 with two rollers, in this case, only one roller is necessary on the lower tool 6.
  • both lower tool 6 and upper tool 7 each have two rollers, and at least one tool 6 and / or 7 is pivotally connected to the table or the upper beam. In this embodiment, also S-bends can be produced in one operation.
  • the stop device 21 comprises a gripper 14.
  • FIG. 5 shows a partially sectioned supervision. Shown is a movable stop device 21 with two stop tables 5, which are independently movable in the x direction, and a machine control 11, the table 1, the driven by means of geared motor 13 lower tool 6, the workpiece 16 and the Biegematritze 2. For alternating folding and Rounds of the workpiece must be moved between the individual steps only the stop tables 5 and the workpiece 16 are moved accordingly.
  • FIG. 6 shows the bervorzugte embodiment of the rolling device, in which the upper tool 7 is modular.
  • the individual, replaceable modules 12 each comprise a roller 9 (see. Fig. 8 ) which is rotatably supported by two bearing shafts 17.
  • the modules 12 are held in the upper beam 3 by wedge and groove.
  • the lower tool 6 is rotationally driven by means of the geared motor 13 and modular built up.
  • the rollers 8 of the lower tool 6 are non-positively connected by jaw clutches.
  • FIG. 7 shows the embodiment of the curling device according to FIG. 1 in the frontal view.
  • the lower tool 6 and the upper tool 7 are constructed modularly from rollers 8, 9 and rotationally driven with their own geared motor 13.
  • FIG. 8 shows a detailed view of the modules 12 of the upper tool 7 in FIG. 6 .
  • FIG. 9 shows the modules of the lower tool 6 in Fig. 6 .
  • the lower rollers 8 can be positively connected to each other by means of jaw clutches.
  • FIG. 10 shows a section through the lower tool 6 in Fig. 6 ,
  • the lower rollers 8 are rotatably supported on bearing shafts 19.
  • the cross member 23 has recesses so that the lower rollers 8 are rotatable.
  • FIGS. 11 and 12 show side views of the upper tool 7 and the lower tool. 6
  • FIG. 2 shows the process of producing an exemplary sheet-metal bent part according to the prior art.
  • FIG. 14 shows the workflow for producing a structurally identical sheet-metal part by means of the sheet metal processing machine according to the invention.
  • the comparison of the two workflows shows that a workflow is achieved with the sheet metal working machine according to the invention, which manages with a significantly reduced number of steps.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Press Drives And Press Lines (AREA)
  • Advancing Webs (AREA)
  • Soil Working Implements (AREA)

Abstract

A replaceable lower tool (6) is located on the table (1) near the mounting for the bending matrix. This tool (6) comprises two parallel lower rollers (8) which rotate about axes lying at right angles to the direction of sheet metal workpiece movement. Above them, on the upper face (3) at the bending plunger mounting, a replaceable upper tool (7) is fastened. This comprises an upper roller (9) which can be rotated about an axis parallel to those of the lower rollers. A displacement sensor associated with the lower or upper tool, is connected to the machine controller. The upper and lower tools (6, 7) each comprise a series of roller modules connected in a row. The rollers are joined by interference fits, interlocking claws or serrated-teeth couplings. The stop unit is in the form of a height-adjustable stop table. It is constructed to feed the workpiece, and incorporates a workpiece gripper.

Description

Die Erfindung betrifft eine Blechbearbeitungsmaschine, mit einem Tisch zur Aufnahme auswechselbarer Biegematrizen, einer darüber heb- und senkbar angeordneten Oberwange zur Aufnahme auswechselbarer Biegestempel und einer in Bearbeitungsrichtung verfahrbaren Anschlagvorrichtung.The invention relates to a sheet metal working machine, with a table for receiving interchangeable bending dies, an over which can be raised and lowered disposed upper cheek for receiving replaceable punch and a movable in the machine direction stop device.

Blechbiegeteile, die sowohl Rundungen als auch Abkantungen aufweisen, sind aus modernen Konstruktionen nicht mehr wegdenkbar. Für die Herstellung solcher Blechbiegeteile werden bisher mindestens zwei verschiedene Maschinen benötigt, nämlich eine Abkantpresse und eine Einrollmaschine. Je nach Komplexität der Umformung muss das Blechbiegeteil (Werkstück) mehrfach zwischen den Maschinen hin und her tranportiert werden. Dies ist zeitaufwendig und kostenintensiv. Außerdem muss das Blechbiegeteil jedesmal in der Maschine neu positioniert werden.Bent sheet metal parts, which have both curves and bends, are no longer thinkable from modern designs. For the production of such bent sheet metal parts so far at least two different machines are needed, namely a press brake and a curler. Depending on the complexity of the forming process, the sheet metal part (workpiece) has to be transported back and forth several times between the machines. This is time consuming and costly. In addition, the sheet metal part must be repositioned each time in the machine.

Eine weitere Möglichkeit besteht darin, das Blechbiegeteil durch Vielfachabkantungen mittels einer Abkantpresse zu runden. Die Rundung wird dementsprechend durch einen Polygonzug angenähert. Zwar muss das Blechbiegeteil in der Maschine nur einmal positioniert werden und auch der Transport zwischen den unterschiedlichen Maschinen entfällt, doch die Vielfachabkantungen sind auf polierten und geschliffenen Oberflächen deutlich zu erkennen, was häufig unerwünscht ist. Darüberhinaus ist diese Methode sehr zeitaufwendig. Ein weiterer Nachteil dieses Verfahrens besteht darin, dass z.B. elliptische Formen nicht durch Vielfachabkantungen herstellbar sind.Another possibility is to round the sheet metal part by Mehrfachabkantungen means of a press brake. The rounding is accordingly approximated by a polygon. Although the sheet metal bending part only needs to be positioned once in the machine and also eliminates the transport between the different machines, but the Mehrfachabkantungen are clearly visible on polished and ground surfaces, which is often undesirable. Moreover, this method is very time consuming. Another disadvantage of this method is that, for example, elliptical shapes can not be produced by multiple edging.

Die DE 37 45 067 C2 offenbart eine Blechbiegemaschine nach dem Oberbegriff des Anspruches 1.The DE 37 45 067 C2 discloses a plate bending machine according to the preamble of claim 1.

Die DE 32 08 851 A1 offenbart eine Dreiwalzen-Biegepresse mit zwei unteren Walzen in einer ortsfesten Position sowie einer oberen Walze. Die obere Walze ist an beiden Enden mit Hilfe von Lenkverbindungen, die durch zwei Paare von hydraulischen Kolben betätigt werden, hin und her bewegbar.The DE 32 08 851 A1 discloses a three-roll bending press with two lower rolls in a fixed position and an upper roll. The upper roller is reciprocable at both ends by means of steering joints actuated by two pairs of hydraulic pistons.

Der Erfindung liegt die Aufgabe zugrunde, eine Blechbearbeitungsmaschine der angegebenen Gattung zu schaffen, die geeignet ist Blechbiegeteile, die Abkantungen und Rundungen aufweisen, effizient zu fertigen.The invention has for its object to provide a sheet metal working machine of the specified type, which is suitable sheet metal parts having bends and curves to produce efficiently.

Diese Aufgabe ist durch eine Blechbearbeitungsmaschine mit den Merkmalen des Patentanspruches 1 gelöst.This object is achieved by a sheet metal working machine with the features of claim 1.

Die mit der Erfindung erreichten Vorteile bestehen darin, dass das Blechbiegeteil nicht mehr zwischen zwei verschiedenen Maschinen transportiert werden und das Blechbiegeteil im Regelfall nur einmal in der erfindungsgemäßen Maschine positioniert werden muss. Die erfindungsgemäße Integration der für die verschiedenen Bearbeitungsschritte notwendigen Werkzeuge d.h. einer Abkant- und Einrollvorrichtung in eine Maschine, ermöglicht eine rasche Produktion von Blechbiegteilen mit hoher Oberflächengüte, die sowohl Rundungen als auch Abkantungen aufweisen.The advantages achieved by the invention are that the sheet metal bent part is no longer transported between two different machines and the sheet metal part usually has to be positioned only once in the machine according to the invention. The integration according to the invention of the tools necessary for the various processing steps, i. a Abkant- and curl into a machine, allows rapid production of bent sheet metal parts with high surface quality, which have both curves and folds.

Die in Anspruch 2 beschriebene vorteilhafte Ausgestaltung ermöglicht eine genaue Überwachung des Einrollvorgangs. Sind sowohl Ober- als auch das Unterwerkzeug mit je einem Wegmessgeber ausgestattet, kann die Maschinensteuerung Schlupf zwischen den Rollen und dem Biegeteil erkennen und als Folge daraus die Steuerung der Maschine anpassen, indem z.B. der durch die Oberwange ausgeübte Druck geändert wird.The advantageous embodiment described in claim 2 allows accurate monitoring of the rolling process. If both upper and lower tools are each equipped with a position transducer, the machine controller can detect slippage between the rollers and the bending part and as a result adjust the control of the machine, e.g. the pressure exerted by the upper cheek is changed.

Eine weitere vorteilhafte Ausführungsform ermöglicht das Einrollen von Trichtern. Hierzu ist die Oberwange schräg absenkbar, und die Anschlagvorrichtung weist mindestens zwei Anschlagpunkte auf, die mindestens in der Breite und der Tiefe unabhängig voneinander verfahrbar sind.A further advantageous embodiment allows the curling of funnels. For this purpose, the upper beam is lowered obliquely, and the stop device has at least two attachment points, which are independently movable at least in width and depth.

Die weitere vorteilhafte Ausgestaltung in Patentanspruch 3 ermöglicht es, die Arbeitsbreite der Einrollvorrichtung dem Blechbiegeteil anzupassen. Werden die Rollen nicht kraftschlüssig verbunden, verläuft die Bewegung des Blechbiegeteils nicht orthogonal zu den Rollenachsen der Einrollvorrichtung.The further advantageous embodiment in claim 3 makes it possible to adjust the working width of the curl the sheet metal part. Are the rollers not frictional connected, the movement of the sheet metal part is not orthogonal to the roller axes of the retractor.

Im Anspruch 4 ist eine besonders vorteilhafte Art die Rollenmodule zu verbinden beschrieben. Klauenkupplungen und Hirtverzahnungen erlauben bei einfacher Kuppelbarkeit die Übertragung hoher Drehmomente.In claim 4, a particularly advantageous way to connect the roller modules is described. Jaw clutches and Hirtverzahnungen allow the transmission of high torques with ease Kuppelbarkeit.

Der Patentanspruch 5 betrifft eine weitere vorteilhafte Ausführungsform. Der höhenverstellbare Anschlagtisch hält die Anschlagvorrichtung im ständigen Kontakt mit dem Werkstück. Dadurch kann ein unerwünschtes Durchhängen des Blechbiegeteils durch die Schwerkraft verhindert werden. Im Falle einer NC-Achsen gesteuerten Anschlagvorrichtung, welche mit der Maschinensteuerung verbunden ist, erlaubt diese Ausführungsform eine Änderung der Einrollradien nach einem vorgegebenen Programm.The claim 5 relates to a further advantageous embodiment. The height-adjustable stop table holds the stop device in constant contact with the workpiece. Thereby, an undesirable sagging of the sheet metal bent part by gravity can be prevented. In the case of an NC-axis controlled stop device which is connected to the machine control, this embodiment allows a change of the Einrollradien according to a predetermined program.

Der Anspruch 6 beschreibt eine besonders vorteilhafte Ausführungsform. Die Anschlagvorrichtung kann unterstützend wirken, wenn zum Verformen des Blechbiegeteils so hohe Kräfte notwendig sind, daß der Schlupf zwischen den Rollen und dem Bechbiegeteil groß wird, da mittels des Greifers Vorschub-, insbesondere Zugkräfte vom Antrieb der Anschlagvorrichtung auf das Blechbiegeteil übertragen werden können. Ist die Anschlagvorrichtung NC gesteuert, so ermöglicht dies ein sehr genaues Steuern des Einrollvorgangs.The claim 6 describes a particularly advantageous embodiment. The stop device can act as a support if so high forces are necessary for deforming the bent sheet metal part, that the slip between the rollers and the Bechbiegeteil becomes large, since by means of the gripper feed, in particular tensile forces can be transmitted from the drive of the stop device on the sheet metal part. If the stop device NC controlled, this allows a very accurate control of the rolling process.

In der Zeichnung sind Ausführungsbeispiele einer erfindungsgemäßen Blechbearbeitungsmaschine und deren Einzelheiten schematisch dargestellt. Es zeigt:

Fig. 1
eine Frontansicht,
Fig. 2
eine Seitenansicht von links,
Fig. 3
eine erste Seitenansicht von rechts,
Fig. 4
eine weitere Ausführungsform in einer Seiteansicht von rechts,
Fig. 5
eine teilweise geschnittene Aufsicht,
Fig. 6
eine erste Auführungform einer Einrollvorrichtung,
Fig. 7
eine Frontansicht einer Einrollvorrichtung,
Fig. 8
ein modular aufgebautes Oberwerkzeug,
Fig. 9
ein modular aufgebautes Unterwerkzeug,
Fig. 10
einen Schnitt durch das Unterwerkzeug aus Fig. 9,
Fig. 11
eine Seitenansicht eines Oberwerkzeugs,
Fig. 12
eine Seitenansicht eines Unterwerkzeugs,
Fig. 13
einen Arbeitsablauf nach dem Stand der Technik,
Fig. 14
einen Arbeitsablauf an der erfindungsgemäßen Maschine.
In the drawings, embodiments of a sheet metal forming machine according to the invention and the details are shown schematically. It shows:
Fig. 1
a front view,
Fig. 2
a side view from the left,
Fig. 3
a first side view from the right,
Fig. 4
another embodiment in a side view from the right,
Fig. 5
a partially sectioned top view,
Fig. 6
a first embodiment of a curling device,
Fig. 7
a front view of a curling device,
Fig. 8
a modular upper tool,
Fig. 9
a modular lower tool,
Fig. 10
a section through the lower tool Fig. 9 .
Fig. 11
a side view of an upper tool,
Fig. 12
a side view of a lower tool,
Fig. 13
a workflow according to the prior art,
Fig. 14
a workflow on the machine according to the invention.

Die in Fig. 1 dargestellte Ansicht der erfindungsgemäßen Blechbearbeitungsmaschine zeigt einen Tisch 1, auf dem eine Biegematritze 2 und das Unterwerkzeug 6 einer Einrollvorrichtung befestigt sind. Darüber befindet sich eine hebund senkbare Oberwange 3, an der ein Biegestempel 4 über der Biegematritze 2 und ein Oberwerkzeug 7 über dem Unterwerkzeug 6 hängend befestigt sind. Das Unterwerkzeug 6 und das Oberwerkzeug 7 sind mittels je eines Getriebemotors 13 drehangetrieben.In the Fig. 1 shown view of the sheet metal processing machine according to the invention shows a table 1, on which a bending bit 2 and the lower tool 6 a retractor are attached. Above this there is a raising and lowering upper cheek 3, on which a bending punch 4 are fastened over the bending die 2 and an upper tool 7 are suspended above the lower tool 6. The lower tool 6 and the upper tool 7 are rotationally driven by means of a geared motor 13.

Die Figuren 2 und 3 zeigen eine Ausführungsform, bei der sich hinter dem Tisch 1 eine NC-gesteuerte längs- und höhenverstellbare Anschlagvorrichtung 21 befindet. Sie umfaßt u.a. einen Tisch 5 und die üblichen Antriebe wie etwa 18. In der Figur 2 ist das zwischen Biegestempel 4 und Biegematrize 2 befindliche Werkstück 16 dargestellt. Ebenso ist die Aufnahme für den auswechselbaren Biegestempel 4 und die auswechselbare Biegematritze 2 zu erkennen. Wird die Oberwange 3 gesenkt, bewirkt dies eine Abkantung des Werkstücks 16. Die Figur 3 zeigt die Ausführungsform von der anderen Seite. Hier ist anstelle des Biegewerkzeugs das Unterwerkzeug 6 und das Oberwerkzeug 7 der Einrollvorrichtung zu sehen. Das Unterwerkzeug 6 der Einrollvorrichtung hat zwei parallele Rollen 8, welche rechtwinklig zu Werkstücktransportrichtung drehbar gelagert sind. Das darüber befindliche Oberwerkzeug 7 weist eine Rolle 9 auf, welche parallel zu den beiden unteren Rollen 8 drehbar angeordnet ist. Es ist auch möglich, das Oberwerkzeug 7 mit zwei Rollen auszustatten, in diesem Fall ist am Unterwerkzeug 6 nur eine Rolle notwendig. In einer anderen Ausführungsform weisen sowohl Unterwerkzeug 6 als auch Oberwerkzeug 7 je zwei Rollen auf, und mindestens ein Werkzeug 6 und/oder 7 ist schwenkbar mit dem Tisch bzw. der Oberwange verbunden. In dieser Ausführungsform können auch S-Biegungen in einem Arbeitsgang hergestellt werden.The Figures 2 and 3 show an embodiment in which behind the table 1, an NC-controlled longitudinal and height adjustable stop device 21 is located. It includes, inter alia, a table 5 and the usual drives such as 18. In the FIG. 2 the workpiece 16 located between the bending punch 4 and the bending die 2 is shown. Likewise, the receptacle for the replaceable punch 4 and the replaceable Biegematritze 2 can be seen. If the upper beam 3 is lowered, this causes a bending of the workpiece 16. Die FIG. 3 shows the embodiment from the other side. Here is the bending tool instead of the To see lower tool 6 and the upper tool 7 of the retractor. The lower tool 6 of the rolling device has two parallel rollers 8, which are rotatably mounted at right angles to the workpiece transport direction. The upper tool 7 located above has a roller 9, which is arranged rotatable parallel to the two lower rollers 8. It is also possible to equip the upper tool 7 with two rollers, in this case, only one roller is necessary on the lower tool 6. In another embodiment, both lower tool 6 and upper tool 7 each have two rollers, and at least one tool 6 and / or 7 is pivotally connected to the table or the upper beam. In this embodiment, also S-bends can be produced in one operation.

In der Figur 4 ist eine Weiterbildung gezeigt, in welcher die Anschlagvorrichtung 21 einen Greifer 14 umfasst.In the FIG. 4 a development is shown in which the stop device 21 comprises a gripper 14.

Figur 5 zeigt eine teilweise im Schnitt gehaltenen Aufsicht. Dargestellt ist eine verfahrbare Anschlagvorrichtung 21 mit zwei Anschlagtischen 5, die in x-Richtung unabhängig voneinander verfahrbar sind, sowie eine Maschinensteuerung 11, der Tisch 1, das mittels Getriebemotor 13 angetriebene Unterwerkzeug 6, das Werkstück 16 und die Biegematritze 2. Zum abwechselnden Abkanten und Runden des Werkstücks müssen zwischen den einzelnen Arbeitsschritten nur die Anschlagtische 5 verfahren und das Werkstück 16 entsprechend verschoben werden. FIG. 5 shows a partially sectioned supervision. Shown is a movable stop device 21 with two stop tables 5, which are independently movable in the x direction, and a machine control 11, the table 1, the driven by means of geared motor 13 lower tool 6, the workpiece 16 and the Biegematritze 2. For alternating folding and Rounds of the workpiece must be moved between the individual steps only the stop tables 5 and the workpiece 16 are moved accordingly.

Die Figur 6 zeigt die bervorzugte Ausführungsform der Einrollvorrichtung, bei der das Oberwerkzeug 7 modular aufgebaut ist. Die einzelnen, auswechselbaren Module 12 umfassen je eine Rolle 9 (vgl. Fig. 8) die mittels zwei Lagerwellen 17 drehbar gelagert ist. Die Module 12 werden in der Oberwange 3 durch Keil und Nut gehalten. Das Unterwerkzeug 6 ist mittels des Getriebemotors 13 drehangetrieben und modular aufgebaut. Die Rollen 8 des Unterwerkzeugs 6 sind durch Klauenkupplungen kraftschlüssig verbunden.The FIG. 6 shows the bervorzugte embodiment of the rolling device, in which the upper tool 7 is modular. The individual, replaceable modules 12 each comprise a roller 9 (see. Fig. 8 ) which is rotatably supported by two bearing shafts 17. The modules 12 are held in the upper beam 3 by wedge and groove. The lower tool 6 is rotationally driven by means of the geared motor 13 and modular built up. The rollers 8 of the lower tool 6 are non-positively connected by jaw clutches.

Figur 7 zeigt die Ausführungsform der Einrollvorrichtung gemäß Figur 1 in der Frontalansicht. Unterwerkzeug 6 und Oberwerkzeug 7 sind modular aus Rollen 8, 9 aufgebaut und mit je einem eigenen Getriebemotor 13 drehangetrieben. FIG. 7 shows the embodiment of the curling device according to FIG. 1 in the frontal view. The lower tool 6 and the upper tool 7 are constructed modularly from rollers 8, 9 and rotationally driven with their own geared motor 13.

Figur 8 zeigt eine Detailansicht der Module 12 des Oberwerkzeugs 7 in Figur 6. FIG. 8 shows a detailed view of the modules 12 of the upper tool 7 in FIG. 6 ,

Figur 9 zeigt die Module des Unterwerkzeugs 6 in Fig. 6. Die unteren Rollen 8 können kraftschlüssig mittels Klauenkupplungen miteinander verbunden werden. FIG. 9 shows the modules of the lower tool 6 in Fig. 6 , The lower rollers 8 can be positively connected to each other by means of jaw clutches.

Figur 10 zeigt einen Schnitt durch das Unterwerkzeug 6 in Fig. 6. Die unteren Rollen 8 sind auf Lagerwellen 19 drehbar gelagert. Das Querelement 23 weist Ausnehmungen auf, so dass die unteren Rollen 8 drehbar sind. FIG. 10 shows a section through the lower tool 6 in Fig. 6 , The lower rollers 8 are rotatably supported on bearing shafts 19. The cross member 23 has recesses so that the lower rollers 8 are rotatable.

Figur 11 und 12 zeigen Seitenansichten des Oberwerkzeugs 7 und des Unterwerkzeug 6. FIGS. 11 and 12 show side views of the upper tool 7 and the lower tool. 6

In Figur 13 ist der Arbeitsablauf zur Herstellung eines beispielhaften Blechbiegeteils entsprechend dem Stand der Technik dargestellt.In FIG. 13 FIG. 2 shows the process of producing an exemplary sheet-metal bent part according to the prior art.

Figur 14 zeigt den Arbeitsablauf zur Herstellung eines baugleichen Blechbiegeteils mittels der erfindungsgemäßen Blechbearbeitungsmaschine. Der Vergleich der beiden Arbeitsabläufe zeigt, dass mit der erfindungsgemäßen Blechbearbeitungsmaschine ein Arbeitsablauf realisiert wird, der mit einer deutlich verminderten Anzahl von Arbeitsschritten auskommt. FIG. 14 shows the workflow for producing a structurally identical sheet-metal part by means of the sheet metal processing machine according to the invention. The comparison of the two workflows shows that a workflow is achieved with the sheet metal working machine according to the invention, which manages with a significantly reduced number of steps.

Claims (6)

  1. Sheet metal working machine having a supporting table (1) for accommodating interchangeable bending dies (2), an upper cheek (3) disposed above this and adapted to be raised and lowered, for accommodating interchangeable bending punches (4), and a stop device (21) adapted to be moved along the working direction of the sheet work-piece (16) to be bent, characterized by a lower die (6) disposed to be interchangeable on the table (1) adjacent to the accommodating means for the bending die, the lower die comprising two lower rollers (8) that are rotatable about parallel axes that are at right angles to the work-piece conveying direction, and above this, an upper die (7) interchangeably attached to the upper cheek adjacent to the accommodating means for the bending punches, the upper die comprising an upper roller (9) that is rotatable about an axis parallel to the axes of the lower rollers.
  2. Sheet metal working machine according to claim 1, characterized in that a path measurement sensor connected to a machine controller (11) is connected to at least the lower die (6) or the upper die (7)
  3. Sheet metal working machine according to any one of claims 1 or 2, characterized in that the lower die (6) and the upper die (7) consists of roller modules (12) adapted to be disposed in line and connected to each other in force-locked manner.
  4. Sheet metal working machine according to claim 3, characterized in that the force-locked connection between the roller modules (12) consists of complementary end-face dog clutches or serrations.
  5. Sheet metal working machine according to any one of claims 1 to 4, characterized in that the stop device (21) comprises a stop table (5) of adjustable height.
  6. Sheet metal working machine according to any one of claims 1 to 5, characterized in that the stop device (21) is designed to be a feeder means for the sheet work-piece to be bent and comprises a gripping means (14) for the sheet work-piece to be bent.
EP06007822A 2005-06-09 2006-04-13 Metal sheet working machine Not-in-force EP1731237B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005026727A DE102005026727B3 (en) 2005-06-09 2005-06-09 Machine working sheet metal by bending, edge-folding and rounding-off, includes upper and lower bending roller tools constructed from roller modules

Publications (3)

Publication Number Publication Date
EP1731237A2 EP1731237A2 (en) 2006-12-13
EP1731237A3 EP1731237A3 (en) 2007-08-29
EP1731237B1 true EP1731237B1 (en) 2008-07-16

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Application Number Title Priority Date Filing Date
EP06007822A Not-in-force EP1731237B1 (en) 2005-06-09 2006-04-13 Metal sheet working machine

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EP (1) EP1731237B1 (en)
AT (1) ATE401145T1 (en)
DE (2) DE102005026727B3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101249536B (en) * 2008-04-14 2010-11-03 江苏新扬子造船有限公司 Method for pressing groove-shaped bulkhead by using three-roller plate bending machine
DE102010048795B4 (en) 2010-10-20 2019-03-28 Wolfram Hochstrate Swivel bending machine and method for forming sandwich panels
AT510689B1 (en) * 2011-03-07 2012-06-15 Trumpf Maschinen Austria Gmbh METHOD FOR POSITIONING A WORKPIECE ON A PUSHING PRESSURE
ITTV20120072A1 (en) 2012-05-08 2013-11-09 Andrea Argentin POSITIONAL REFERENCE DEVICE
CN105834309A (en) * 2016-05-25 2016-08-10 中航威海船厂有限公司 Mould for machining corrugated bulkhead of bulk cargo ship
FR3078274B1 (en) * 2018-02-27 2022-02-18 Ojb BENDING DIE FOR A PIECE OF BOILERWORK WITH REINFORCEMENT BARS
EP3640016B1 (en) * 2019-08-21 2024-10-23 Clecim Sas Press for metal product and associated method
CN115519176B (en) * 2021-06-25 2025-10-14 宝山钢铁股份有限公司 A specimen shear with servo conveying pressure wheel and control method thereof

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Publication number Priority date Publication date Assignee Title
IT1145952B (en) * 1981-03-17 1986-11-12 Luigi Bruzzone CALENDER WITH LOWER FIXED ROLLERS AND SWINGING UPPER ROLLER
US4411150A (en) * 1981-10-21 1983-10-25 Houdaille Industries, Inc. Backgauge structure
US4770017A (en) * 1986-04-02 1988-09-13 Agency Of Industrial Science And Technology Apparatus for forming plate with a double-curved surface
DE3745067C2 (en) * 1986-06-20 1997-03-20 Amada Co Multi-step bending machine e.g. press brake
GB2219669A (en) * 1988-06-07 1989-12-13 Hiroshi Sato Press brake with a displacement sensor
US5365767A (en) * 1992-03-23 1994-11-22 Steelcase Inc. Brake press arrangement
DE19750815B4 (en) * 1997-11-17 2006-09-28 Sms Demag Ag Bending device for a metal strip
FR2847836B1 (en) * 2002-12-03 2006-02-03 Imp Ingenierie Et Mecanique De MULTIFUNCTION PRESS DEVICE

Also Published As

Publication number Publication date
EP1731237A2 (en) 2006-12-13
DE502006001104D1 (en) 2008-08-28
DE102005026727B3 (en) 2006-10-12
ATE401145T1 (en) 2008-08-15
EP1731237A3 (en) 2007-08-29

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