EP1926565B1 - Method and device for the production of hollow profiled elements - Google Patents

Method and device for the production of hollow profiled elements Download PDF

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Publication number
EP1926565B1
EP1926565B1 EP06793623A EP06793623A EP1926565B1 EP 1926565 B1 EP1926565 B1 EP 1926565B1 EP 06793623 A EP06793623 A EP 06793623A EP 06793623 A EP06793623 A EP 06793623A EP 1926565 B1 EP1926565 B1 EP 1926565B1
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EP
European Patent Office
Prior art keywords
blank
hollow profile
shaping
stiffening
punching
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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.)
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EP06793623A
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German (de)
French (fr)
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EP1926565A1 (en
Inventor
Michael BRÜGGENBROCK
Thomas Flehmig
Lothar Patberg
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ThyssenKrupp Steel Europe AG
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ThyssenKrupp Steel Europe AG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/28Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29Making branched pieces, e.g. T-pieces
    • B21C37/292Forming collars by drawing or pushing a rigid forming tool through an opening in the tube wall
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08Making tubes with welded or soldered seams
    • B21C37/0815Making tubes with welded or soldered seams without continuous longitudinal movement of the sheet during the bending operation

Definitions

  • the invention relates to a device according to preamble of claim 1 for forming a board to a hollow profile with at least one base plate on which the reshaped board can be placed at least one punch core for the hollow profile and at least two die halves for forming the board to the hollow profile and a method
  • a device and method are known from US 2158176 known.
  • stiffening and / or functional elements are generally understood tabs, brackets, flanges, etc., which are used on the one hand, for example, for attaching other hollow sections, so-called flange or connection elements.
  • flaps bent over by 180 ° can also form stiffening elements by forming a region with a double board thickness.
  • connection elements for connecting a further component is introduced into a hollow profile to be wound up.
  • the introduction of the connection elements should, however, take place in a prebent region of the hollow profile in order to ensure the dimensional accuracy of the introduced connection opening.
  • the connection elements are formed from a prebent region of the board, but these still have residual bends. Due to the residual bends, the distance between the areas of the connection elements to be joined together varies.
  • the known connection elements ensure no ideal joining conditions, so that the process reliability decreases when joining various hollow profiles.
  • the present invention has the object to provide a method and an apparatus for producing a hollow profile with at least one molded stiffening and / or functional element of a board available, with which or with which corresponding hollow profiles can be produced inexpensively, at the same time ensure high process reliability when connecting different hollow profiles.
  • the above-described object is achieved by a generic device in that at least one forming die is provided, with which an introduced into the planar board element structure in a stiffening and / or functional element can be formed and / or fixed.
  • the steps of molding or fixing the stiffening and / or functional elements can be integrated with the steps for forming the board to the hollow profile in a device, so that the number of steps is reduced by avoiding additional set-up or positioning steps.
  • a minimization of the setting or positioning steps is achieved by providing means for punching and / or cutting the element structure in the planar board.
  • By appropriate means and the upstream process of punching or cutting the element structure can be integrated into the planar board in the device, so that all steps starting can be performed from a flat board to the finished hollow profile with molded stiffening and / or functional elements in a device.
  • the means for punching and / or cutting the element structure in the planar board are at least partially integrated in the punch core, so that the structure of the device according to the invention is simplified.
  • the position of the individual stiffening and / or functional elements in the finished hollow profile can be varied particularly easily by incorporating means movable in the stamp core for cutting and / or punching.
  • the stated object is procedurally achieved in that using the device according to the invention by punching and / or cutting a later stiffening and / or functional element forming element structure is introduced into the planar board, at least one forming die the element structure forms the stiffening and / or functional element and optionally fixed and then the board is formed into a hollow profile.
  • the stiffening and / or functional elements are formed according to the invention from the planar board, so that this principle has no residual bending conditionally and ideal joining conditions when connecting made of several hollow profiles are ensured by the inventive method.
  • the tooling costs for the production of the hollow profiles can be low be kept because the formations always takes place in the planar board and the tools can therefore be designed according to simple.
  • the stiffening and / or functional elements need not be added to the hollow profiles, so that the number of work steps and the production costs for producing a hollow profile with stiffening and / or functional elements can be reduced.
  • a further reduction of the manufacturing costs is, according to a next embodiment of the method, achieved in that after placing the board on a base plate of an apparatus for forming the board to a hollow profile of the forming die forms the element structure and optionally fixed.
  • the number of necessary punching and / or cutting tools is minimized by the punching and / or cutting of the element structure by means provided in the apparatus for forming the board to a hollow profile provided movable means for punching and / or cutting the board.
  • An economical production of longitudinally welded or joined tubes in medium quantities thereby gephilrleitstet that when forming the board to the hollow profile, the board is pressed by a punch core against a hollow profile shaped support plate, laterally disposed die halves that Form hollow profile against the punch core and optionally joined the opposite longitudinal edges of the formed board, in particular welded.
  • Said method can on the one hand produce hollow profiles with different lengths with little effort and, on the other hand, can be adapted with little effort to the production of different cross-sectional shapes of the hollow profiles by exchanging the die halves and the die.
  • hollow profiles can be provided both with integrally formed and also attached stiffening and / or functional elements.
  • illustrated boards 1, 2 have according to a first embodiment of the method introduced element structures 3, 4.
  • the element structures 3, 4 generally consist of stamped or cut openings in the sinkers 1, 2, which can be converted into stiffening and / or functional elements, for example connection or flange elements.
  • Fig. 2 a) and b) are the boards 1, 2 shown to a hollow profile 5, 6 formed.
  • the element structures 3, 4 have been formed using a forming die, so that the hollow profile 5, 6 is a functional element, in this case a connecting element 7, 8 having.
  • the stiffening and / or functional elements can be formed at any point of the hollow profile, for example on the front side or in the middle of the hollow profile.
  • the shows Fig. 2 a) and b) only the formation of the functional elements 7, 8 as connecting elements.
  • a stiffening element can be easily achieved by bending the individual cut out tabs of the element structure by 180 °, so that an area with double board thickness is formed.
  • connecting elements 7, 8 were formed from the planar board 1, 2, the tabs are flat and show no disturbing residual bends.
  • the connecting elements 7, 8 produced by the method according to the invention therefore ensure ideal joining conditions for adding further hollow profiles.
  • Fig. 3 is now shown in a sectional view schematically the region of the die of an embodiment of a device according to the invention for forming a circuit board to a hollow profile.
  • the Fig. 3 shows a base plate 9, which has a recess 10, wherein the recess for forming the previously brought into the board and in Fig. 3 not shown element structures is used.
  • two die halves 11, 12 shown which by forming a closing movement of the board 13 against the punch core 14 to form a hollow profile, for example, with a nearly square cross-section.
  • the forming die 15 which is integrated in the punch core 14, on the one hand serves, before the closing movement of the die halves 11, 12, the element structures to form a stiffening and / or Functional element, for example, form terminal element, wherein the circuit board 13 rests on the base plate 9.
  • the stiffening element and / or functional element 16 during forming into a hollow profile.
  • the punch core in the Fig. 3 not shown means for punching and / or cutting the element structures in the board, so that a hollow profile with integrally formed stiffening and / or functional elements can be prepared in a single operation, starting from a flat board.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

A device for shaping a blank into a hollow profiled element can include at least one base plate, onto which the blank that is to be shaped can be placed, at least one die core for the hollow profiled element, and at least two die halves for shaping the blank into the hollow profiled element. A method can include producing a hollow profiled element with at least one molded-on stiffening and/or functional element made from a blank. Hollow profiled elements can be produced at low cost, but at the same time ensure high reliability of a process where different hollow profiled elements are joined together by a generic device, wherein at least one form punch is provided for introducing an element structure into the planar blank that can be shaped and/or fixed into a stiffening and/or functional element.

Description

Die Erfindung betrifft eine Vorrichtung gemäβ Oberbegriff des Anspruchs 1 zum Umformen einer Platine zu einem Hohlprofil mit mindestens einer Grundplatte, auf welche die umzuformende Platine aufgelegt werden kann, mindestens einem Stempelkern für das Hohlprofil und mindestens zwei Gesenkhälften zur Umformung der Platine zum Hohlprofil sowie ein Verfahren gemäβ Oberbegriff des Anspruchs 5 zur Herstellung eines Hohlprofils mit mindestens einem angeformten Versteifungs- und/oder Funktionselement aus einer Platine, eine solche Vorrichtung und Verfahren sind aus der US 2158176 bekannt.The invention relates to a device according to preamble of claim 1 for forming a board to a hollow profile with at least one base plate on which the reshaped board can be placed at least one punch core for the hollow profile and at least two die halves for forming the board to the hollow profile and a method According to the preamble of claim 5 for producing a hollow profile with at least one molded stiffening and / or functional element of a circuit board, such a device and method are known from US 2158176 known.

Im Kraftfahrzeugbau, aber auch auf anderen technischen Gebieten, werden zum Zwecke eines möglichst leichten Gewichtes maßgeschneiderte Bauteile eingesetzt, die in Abhängigkeit von der bei ihrem späteren Einsatz zu erwartenden, örtlichen Belastung unterschiedlich dimensioniert sind und miteinander verbunden werden. Insbesondere werden als Träger im Kraftfahrzeugbau Hohlprofile, sogenannte "tailored tubes", eingesetzt, welche an die unterschiedlichen Belastungen speziell angepasst sind und zur Ausbildung des Trägers miteinander verbunden werden müssen. Die Herstellung solcher Hohlprofile geschieht in der Weise, dass Platinen aus einem metallischen Werkstoff unterschiedlicher Dicke stumpf zusammen geschweißt und dann zu dem Hohlprofil umgeformt werden. Zur Verbesserung der Leichtbauweise ist aus der deutschen Offenlegungsschrift DE 100 38 337 A1 bekannt, Versteifungs- und/oder Funktionselemente auf eine ebene Platine aus Blech anzufügen und die entsprechende Platine zu einem Hohlprofil umzuformen. Hierzu muss das Versteifungs- und/oder Funktionselement getrennt von der Platine hergestellt und entsprechend umgeformt werden bevor es an die Platine angefügt wird, so dass eine weitere Reduzierung der Verfahrensschritte zur Herstellung von belastungsgerecht ausgelegten Hohlprofilen wünschenswert wäre.In the automotive industry, but also in other technical fields, tailor-made components are used for the purpose of the lightest possible weight, which are dimensioned differently depending on the expected during their later use, local load and connected together. In particular, as carrier in the automotive industry hollow sections, so-called "tailored tubes" are used, which are specially adapted to the different loads and must be connected to form the carrier. The production of such hollow profiles is done in such a way that blanks of a metallic material of different thickness butt welded together and then formed into the hollow profile. To improve the lightweight construction is from the German patent application DE 100 38 337 A1 known to attach stiffening and / or functional elements on a flat plate made of sheet metal and the corresponding To transform the board into a hollow profile. For this purpose, the stiffening and / or functional element must be made separately from the board and converted accordingly before it is attached to the board, so that a further reduction of the process steps for the production of load-designed hollow sections would be desirable.

Unter Versteifungs- und/oder Funktionselemente werden im allgemeinen Laschen, Bügel, Flansche etc. verstanden, welche einerseits beispielsweise zum Anbringen von anderen Hohlprofilen verwendete werden, so genannte Flansch- oder Anschlusselemente. Andererseits können beispielsweise um 180° umgebogene Laschen auch Versteifungselemente durch Ausbildung eines Bereiches mit doppelter Platinendicke bilden.Under stiffening and / or functional elements are generally understood tabs, brackets, flanges, etc., which are used on the one hand, for example, for attaching other hollow sections, so-called flange or connection elements. On the other hand, for example, flaps bent over by 180 ° can also form stiffening elements by forming a region with a double board thickness.

Aus der deutschen Patentschrift DE 103 58 502 B3 ist darüber hinaus ein Verfahren zur Herstellung eines Hohlprofils bekannt, bei welchem ein Anschlusselement zur Anbindung eines weiteren Bauteils in ein aufzuwickelndes Hohlprofil eingebracht wird. Die Einbringung des Anschlusselemente soll jedoch in einem vorgebogenen Bereich des Hohlprofils erfolgen, um die Maßgenauigkeit der eingebrachten Anschlussöffnung zu gewährleisten. Dadurch, dass bei diesem Verfahren die Anschlusselemente aus einem vorgebogenen Bereich der Platine geformt werden, weisen diese jedoch noch Restbiegungen auf. Aufgrund der Restbiegungen variiert der Abstand der miteinander zu fügender Bereiche der Anschlusselemente. Damit gewährleisten die bekannten Anschlusselemente keine idealen Fügebedingungen, so dass beim Fügen verschiedener Hohlprofile die Prozesssicherheit sinkt.From the German patent DE 103 58 502 B3 In addition, a method for producing a hollow profile is known, in which a connecting element for connecting a further component is introduced into a hollow profile to be wound up. The introduction of the connection elements should, however, take place in a prebent region of the hollow profile in order to ensure the dimensional accuracy of the introduced connection opening. The fact that in this method, the connection elements are formed from a prebent region of the board, but these still have residual bends. Due to the residual bends, the distance between the areas of the connection elements to be joined together varies. Thus, the known connection elements ensure no ideal joining conditions, so that the process reliability decreases when joining various hollow profiles.

Hiervon ausgehend liegt der vorliegenden Erfindung die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zur Herstellung eines Hohlprofils mit mindestens einem angeformten Versteifungs- und/oder Funktionselement aus einer Platine zur Verfügung zu stellen, mit welchem bzw. mit welcher entsprechende Hohlprofile kostengünstig hergestellt werden können, die gleichzeitig eine hohe Prozesssicherheit beim Verbinden verschiedener Hohlprofile gewährleisten.On this basis, the present invention has the object to provide a method and an apparatus for producing a hollow profile with at least one molded stiffening and / or functional element of a board available, with which or with which corresponding hollow profiles can be produced inexpensively, at the same time ensure high process reliability when connecting different hollow profiles.

Gemäß einer ersten Lehre der vorliegenden Erfindung wird die oben aufgezeigte Aufgabe durch eine gattungsgemäße Vorrichtung dadurch gelöst, dass mindestens ein Formstempel vorgesehen ist, mit welchem eine in die ebene Platine eingebrachte Elementstruktur in ein Versteifungs-und/oder Funktionselement ausformbar und/oder fixierbar ist.According to a first teaching of the present invention, the above-described object is achieved by a generic device in that at least one forming die is provided, with which an introduced into the planar board element structure in a stiffening and / or functional element can be formed and / or fixed.

Durch die Integration des Formstempels in die Vorrichtung zum Umformen einer Platine zu einem Hohlprofil können die Arbeitsschritte des Ausformens oder Fixierens der Versteifungs- und/oder Funktionselemente mit den Arbeitsschritten zur Umformung der Platine zum Hohlprofil in einer Vorrichtung integriert werden, so dass die Anzahl der Arbeitsschritte durch Vermeidung von zusätzlichen Rüst- oder Positionierschritten reduziert wird.By integrating the forming die in the apparatus for forming a board to a hollow profile, the steps of molding or fixing the stiffening and / or functional elements can be integrated with the steps for forming the board to the hollow profile in a device, so that the number of steps is reduced by avoiding additional set-up or positioning steps.

Eine Minimierung der Rüst- bzw. Positionierschritte wird dadurch erreicht, dass Mittel zum Stanzen und/oder Schneiden der Elementstruktur in die ebene Platine vorgesehen sind. Durch entsprechende Mittel kann auch der vorgelagerte Prozess des Stanzens oder Schneidens der Elementstruktur in die ebene Platine in die Vorrichtung integriert werden, so dass alle Arbeitsschritte ausgehend von einer ebenen Platine bis zum fertigen Hohlprofil mit angeformten Versteifungs- und/oder Funktionselementen in einer Vorrichtung durchgeführt werden können.A minimization of the setting or positioning steps is achieved by providing means for punching and / or cutting the element structure in the planar board. By appropriate means and the upstream process of punching or cutting the element structure can be integrated into the planar board in the device, so that all steps starting can be performed from a flat board to the finished hollow profile with molded stiffening and / or functional elements in a device.

Vorzugsweise sind die Mittel zum Stanzen und/oder Schneiden der Elementstruktur in die ebene Platine zumindest teilweise im Stempelkern integriert, so dass der Aufbau der erfindungsgemäßen Vorrichtung vereinfacht wird.Preferably, the means for punching and / or cutting the element structure in the planar board are at least partially integrated in the punch core, so that the structure of the device according to the invention is simplified.

Die Position der einzelnen Versteifungs- und/oder Funktionselemente in dem fertigen Hohlprofil kann dadurch besonders einfach variiert werden, dass im Stempelkern verfahrbare Mittel zum Schneiden und/oder Stanzen integriert sind.The position of the individual stiffening and / or functional elements in the finished hollow profile can be varied particularly easily by incorporating means movable in the stamp core for cutting and / or punching.

Gemäß einer zweiten Lehre der vorliegenden Erfindung wird die aufgezeigte Aufgabe verfahrensmäßig dadurch gelöst, dass unter Verwendung der erfindungsgemäßen Vorrichtung durch Stanzen und/oder Schneiden eine das spätere Versteifungs- und/oder Funktionselement bildende Elementstruktur in die ebene Platine eingebracht wird, mindestens ein Formstempel die Elementstruktur zum Versteifungs- und/oder Funktionselement ausformt und optional fixiert und anschließend die Platine zum Hohlprofil umgeformt wird.According to a second teaching of the present invention, the stated object is procedurally achieved in that using the device according to the invention by punching and / or cutting a later stiffening and / or functional element forming element structure is introduced into the planar board, at least one forming die the element structure forms the stiffening and / or functional element and optionally fixed and then the board is formed into a hollow profile.

Im Gegensatz zum Stand der Technik werden die Versteifungs- und/oder Funktionselemente erfindungsgemäß aus der ebenen Platine ausgeformt, so dass diese Prinzip bedingt keine Restbiegungen aufweisen und ideale Fügebedingungen beim Anschluss von mehreren Hohlprofilen hergestellt nach dem erfindungsgemäßen Verfahren gewährleistet werden. Darüber hinaus können die Werkzeugkosten für die Herstellung der Hohlprofile gering gehalten werden, da die Ausformungen immer in der ebenen Platine erfolgt und die Werkzeuge daher entsprechend einfach gestaltet sein können. Schließlich müssen die Versteifungs- und/oder Funktionselemente nicht an die Hohlprofile angefügt werden, so dass die Anzahl der Arbeitsschritte und die Herstellkosten zur Herstellung eines Hohlprofils mit Versteifungs- und/oder Funktionselemente reduziert werden kann.In contrast to the prior art, the stiffening and / or functional elements are formed according to the invention from the planar board, so that this principle has no residual bending conditionally and ideal joining conditions when connecting made of several hollow profiles are ensured by the inventive method. In addition, the tooling costs for the production of the hollow profiles can be low be kept because the formations always takes place in the planar board and the tools can therefore be designed according to simple. Finally, the stiffening and / or functional elements need not be added to the hollow profiles, so that the number of work steps and the production costs for producing a hollow profile with stiffening and / or functional elements can be reduced.

Eine weitere Reduzierung der Herstellkosten wird, gemäß einer nächsten Ausführungsform des erfindungsgemäßen Verfahrens, dadurch erreicht, dass nach dem Auflegen der Platine auf eine Grundplatte einer Vorrichtung zur Umformung der Platine zu einem Hohlprofil der Formstempel die Elementstruktur ausformt und optional fixiert.A further reduction of the manufacturing costs is, according to a next embodiment of the method, achieved in that after placing the board on a base plate of an apparatus for forming the board to a hollow profile of the forming die forms the element structure and optionally fixed.

Erfolgt das Stanzen und/oder Schneiden der Elementstruktur in der Vorrichtung zur Umformung der Platine zu einem Hohlprofil, können alle notwendigen Arbeitsschritte zur Herstellung eines Hohlprofils integriert in einer Vorrichtung durchgeführt werden. Neben einer weiteren Reduktion der Herstellkosten aufgrund geringerer Herstellzeiten wird durch diese Maßnahme auch die Prozesssicherheit zur Herstellung entsprechender Hohlprofile erhöht, da Fehler aufgrund falscher Positionierung der Elementstruktur von vornherein vermieden werden.If the punching and / or cutting of the element structure in the apparatus for forming the board into a hollow profile, all necessary steps for producing a hollow profile can be performed integrated in a device. In addition to a further reduction of the manufacturing costs due to shorter production times, the process reliability for the production of corresponding hollow profiles is increased by this measure, since errors due to incorrect positioning of the element structure are avoided from the outset.

Die Anzahl der notwendigen Stanz- und/oder Schneidwerkzeuge wird dadurch minimiert, dass das Stanzen und/oder Schneiden der Elementstruktur durch in der Vorrichtung zum Umformen der Platine zu einem Hohlprofil vorgesehene verfahrbare Mittel zum Stanzen und/oder Schneiden der Platine erfolgt.The number of necessary punching and / or cutting tools is minimized by the punching and / or cutting of the element structure by means provided in the apparatus for forming the board to a hollow profile provided movable means for punching and / or cutting the board.

Eine wirtschaftliche Herstellung von längsnahtgeschweißten oder gefügten Rohren in mittleren Stückzahlen wird, gemäß einer nächsten Ausführungsform des erfindungsgemäßen Verfahrens, dadurch gewährleitstet, dass beim Umformen der Platine zum Hohlprofil die Platine durch einen Stempelkern gegen eine entsprechend dem Hohlprofil geformte Auflageplatte gedrückt wird, seitlich angeordnete Gesenkhälften das Hohlprofil gegen den Stempelkern ausformen und optional die gegenüber stehenden Längskanten der umgeformten Platine gefügt, insbesondere verschweißt werden. Das genannte Verfahren kann einerseits Hohlprofile mit unterschiedlicher Länge mit geringem Aufwand herstellen und ist andererseits mit geringem Aufwand an die Herstellung unterschiedlicher Querschnittsformen der Hohlprofile durch einen Austausch der Gesenkhälften und des Formstempels anpassbar.An economical production of longitudinally welded or joined tubes in medium quantities, according to a next embodiment of the method, thereby gewährleitstet that when forming the board to the hollow profile, the board is pressed by a punch core against a hollow profile shaped support plate, laterally disposed die halves that Form hollow profile against the punch core and optionally joined the opposite longitudinal edges of the formed board, in particular welded. Said method can on the one hand produce hollow profiles with different lengths with little effort and, on the other hand, can be adapted with little effort to the production of different cross-sectional shapes of the hollow profiles by exchanging the die halves and the die.

Werden vor dem Umformen der Platine zum Hohlprofil Versteifungs- und/oder Funktionselemente an die Platine angefügt, können Hohlprofile sowohl mit angeformten als auch mit angefügten Versteifungs- und/oder Funktionselementen zur Verfügung gestellt werden.If stiffening and / or functional elements are added to the blank prior to the forming of the blank into the hollow profile, hollow profiles can be provided both with integrally formed and also attached stiffening and / or functional elements.

Es gibt nun eine Vielzahl von Möglichkeiten die erfindungsgemäße Vorrichtung sowie das erfindungsgemäße Verfahren auszugestalten und weiterzubilden. Hierzu wird verwiesen einerseits auf die den Patentansprüchen 1 und 6 nachgeordneten Patentansprüchen sowie andererseits auf die Beschreibung eines Ausführungsbeispiels des erfindungsgemäßen Verfahrens in Verbindung mit der Zeichnung. Die Zeichnung zeigt in

Fig. 1 a) und b)
in einer perspektivischen Ansicht zwei ebene Platinen mit eingebrachten Elementstrukturen zur Ausformung von Versteifungs- und/oder Funktionselementen gemäß einem ersten Ausführungsbeispiel des erfindungsgemäßen Verfahrens,
Fig. 2 a) und b)
in einer perspektivischen Ansicht die ausgeformten Hohlprofile hergestellt aus den ebenen Platinen aus Fig. 1 a) und b) und
Fig. 3
in einer schematischen Schnittansicht ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung zum Umformen einer Platine zu einem Hohlprofil.
There are now a variety of ways to design and further develop the device according to the invention and the method according to the invention. Reference is made on the one hand to the claims subordinate to claims 1 and 6 and on the other hand to the description of an embodiment of the method according to the invention in conjunction with the drawing. The drawing shows in
Fig. 1 a) and b)
2 is a perspective view of two planar blanks with introduced element structures for forming stiffening and / or functional elements according to a first exemplary embodiment of the method according to the invention;
Fig. 2 a) and b)
in a perspective view of the molded hollow profiles made from the flat boards Fig. 1 a) and b) and
Fig. 3
in a schematic sectional view of an embodiment of an inventive device for forming a circuit board to a hollow profile.

Die in Fig. 1 a) und b) dargestellten Platinen 1, 2 weisen entsprechend einem ersten Ausführungsbeispiel des erfindungsgemäßen Verfahrens eingebrachte Elementstrukturen 3, 4 auf. Die Elementstrukturen 3, 4 bestehen in der Regel aus eingestanzten oder geschnittenen Durchbrüchen in den Platinen 1, 2, welche zu Versteifungs-und/oder Funktionselementen, beispielsweise Anschluss-oder Flanschelemente, umgeformt werden können.In the Fig. 1 a) and b) illustrated boards 1, 2 have according to a first embodiment of the method introduced element structures 3, 4. The element structures 3, 4 generally consist of stamped or cut openings in the sinkers 1, 2, which can be converted into stiffening and / or functional elements, for example connection or flange elements.

In Fig. 2 a) und b) sind die Platinen 1, 2 zu einem Hohlprofil 5, 6 umgeformt dargestellt. Vor dem eigentlichen Umformen zu einem Hohlprofil sind die Elementstrukturen 3, 4 unter Verwendung eines Formstempels ausgeformt worden, so dass das Hohlprofil 5, 6 ein Funktionselement, in diesem Fall ein Anschlusselement 7, 8 aufweist. Aus dem Vergleich der Fig. 1 a) und b) sowie Fig. 2 a) und b) wird deutlich, dass die Versteifungs-und/oder Funktionselemente an beliebigen Stellen des Hohlprofils, beispielsweise an der Stirnseite oder in der Mitte des Hohlprofils angeformt werden können. Zwar zeigt die Fig. 2 a) und b) lediglich die Ausbildung der Funktionselemente 7, 8 als Anschlusselemente. Ein Versteifungselement kann jedoch leicht durch Umbiegen der einzelnen ausgeschnittenen Laschen der Elementstruktur um 180° erreicht werden, so dass ein Bereich mit doppelter Platinendicke entsteht.In Fig. 2 a) and b) are the boards 1, 2 shown to a hollow profile 5, 6 formed. Before the actual forming into a hollow profile, the element structures 3, 4 have been formed using a forming die, so that the hollow profile 5, 6 is a functional element, in this case a connecting element 7, 8 having. From the comparison of Fig. 1 a) and b) such as Fig. 2 a) and b) It is clear that the stiffening and / or functional elements can be formed at any point of the hollow profile, for example on the front side or in the middle of the hollow profile. Although the shows Fig. 2 a) and b) only the formation of the functional elements 7, 8 as connecting elements. However, a stiffening element can be easily achieved by bending the individual cut out tabs of the element structure by 180 °, so that an area with double board thickness is formed.

Da die in Fig. 2 a) und b) dargestellten Anschlusselemente 7, 8 aus der ebenen Platine 1, 2 ausgeformt wurden, sind die gebildeten Laschen plan und zeigen keine störenden Restbiegungen auf. Die mit dem erfindungsgemäßen Verfahren hergestellten Anschlusselementen 7, 8 gewährleisten daher ideale Fügebedingungen zum Anfügen weiterer Hohlprofile.Since the in Fig. 2 a) and b) connecting elements 7, 8 were formed from the planar board 1, 2, the tabs are flat and show no disturbing residual bends. The connecting elements 7, 8 produced by the method according to the invention therefore ensure ideal joining conditions for adding further hollow profiles.

In Fig. 3 ist nun in einer Schnittansicht schematisch der Bereich des Gesenks eines Ausführungsbeispiels einer erfindungsgemäßen Vorrichtung zum Umformen einer Platine zu einem Hohlprofil dargestellt. Die Fig. 3 zeigt eine Grundplatte 9, welche eine Ausnehmung 10 aufweist, wobei die Ausnehmung zur Ausformung der zuvor in die Platine gebrachten und in Fig. 3 nicht dargestellten Elementstrukturen dient. Darüber hinaus sind in Fig. 3 zwei Gesenkhälften 11, 12 dargestellt, welche durch eine Schließbewegung die Platine 13 gegen den Stempelkern 14 zu einem Hohlprofil, beispielsweise mit nahezu quadratischem Querschnitt, umformen. Der Formstempel 15, welcher im Stempelkern 14 integriert ist, dient einerseits dazu, vor der Schließbewegung der Gesenkhälften 11, 12 die Elementstrukturen zu einem Versteifungs- und/oder Funktionselement, beispielsweise Anschlusselement auszuformen, wobei die Platine 13 auf der Grundplatte 9 aufliegt. Im weiteren Verlauf des Herstellverfahrens dient der Formstempel 15 dazu, das Versteifungselement- und/oder Funktionselement 16 beim Umformen zu einem Hohlprofil zu fixieren.In Fig. 3 is now shown in a sectional view schematically the region of the die of an embodiment of a device according to the invention for forming a circuit board to a hollow profile. The Fig. 3 shows a base plate 9, which has a recess 10, wherein the recess for forming the previously brought into the board and in Fig. 3 not shown element structures is used. In addition, in Fig. 3 two die halves 11, 12 shown, which by forming a closing movement of the board 13 against the punch core 14 to form a hollow profile, for example, with a nearly square cross-section. The forming die 15, which is integrated in the punch core 14, on the one hand serves, before the closing movement of the die halves 11, 12, the element structures to form a stiffening and / or Functional element, for example, form terminal element, wherein the circuit board 13 rests on the base plate 9. In the further course of the manufacturing process of the forming die 15 is used to fix the stiffening element and / or functional element 16 during forming into a hollow profile.

Mit dem erfindungsgemäßen Verfahren und der erfindungsgemäßen Vorrichtung können so auch Schottbleche in Hohlprofile integriert werden und insbesondere kurze Laschen an ein Hohlprofil kostengünstig angeformt werden.With the method according to the invention and the device according to the invention, it is thus also possible to integrate partition plates into hollow profiles and, in particular, to form short lugs on a hollow profile in a cost-effective manner.

Vorzugsweise weist der Stempelkern in der Fig. 3 nicht dargestellte Mittel zum Stanzen und/oder Schneiden der Elementstrukturen in die Platine auf, so dass ein Hohlprofil mit angeformten Versteifungs- und/oder Funktionselementen in einem Arbeitsgang ausgehend von einer ebenen Platine hergestellt werden kann.Preferably, the punch core in the Fig. 3 not shown means for punching and / or cutting the element structures in the board, so that a hollow profile with integrally formed stiffening and / or functional elements can be prepared in a single operation, starting from a flat board.

Claims (10)

  1. Device for shaping a blank (1, 2) into a hollow profile (5, 6, 13) comprising at least one base plate (9), onto which the blank that is to be shaped (1, 2) can be placed, at least one die core (14) for the hollow profile (5, 6, 13) and at least two die halves (10, 11) for shaping the blank (1, 2) into the hollow profile (5, 6, 13),
    characterized in that at least one form punch (15) integrated in the die core (14) is provided, by means of which an element structure (3, 4) that is introduced into the planar blank can be shaped and/or fixed into a stiffening and/or functional element (7, 8 16).
  2. Device for shaping a blank into a hollow profile according to Claim 1,
    characterized in that means for punching and/or cutting the element structure (3, 4) into the planar blank (1, 2) are provided.
  3. Device for shaping a blank into a hollow profile according to Claim 1 or 2,
    characterized in that means for punching and/or cutting the element structure (3, 4) into the planar blank (1, 2) are integrated at least partly in the die core (14).
  4. Device for shaping a blank into a hollow profile according to any one of Claims 1 to 3, characterized in that moveable means for cutting and/or punching are integrated in the die core (14).
  5. Method for producing a hollow profile with at least one molded-on stiffening and/or functional element made from a blank, wherein an element structure forming the later stiffening and/or functional element is introduced into the planar blank by punching and/or cutting, characterized in that, using a device for shaping a blank according to any one of Claims 1 to 4, at least one form punch integrated in the die core shapes and optionally fixes the element structure into the stiffening and/or functional element and then the blank is shaped into the hollow profile by means of at least two die halves of the device.
  6. Method for producing a hollow profile according to Claim 5,
    characterized in that, after the blank is placed on a base plate of a device for shaping the blank into a hollow profile, the form punch shapes and optionally fixes the element structure.
  7. Method for producing a hollow profile according to Claim 5 or 6,
    characterized in that punching and/or cutting of the element structure takes place in the device for shaping the blank into a hollow profile.
  8. Method for producing a hollow profile according to Claim 5 to 7,
    characterized in that punching and cutting of the element structure takes place through moveable means for at least one of punching and cutting the blank provided in the device for shaping the blank into a hollow profile.
  9. Method for producing a hollow profile according to Claim 5 to 8,
    characterized in that while the blank is being shaped into the hollow profile the blank is pressed by a die core against a supporting plate with a form corresponding to the hollow profile, laterally arranged die halves shape the hollow profile against the die core, and optionally the opposite-lying longitudinal edges of the shaped blank are joined, more particularly welded.
  10. Method for producing a hollow profile according to Claim 5 to 9,
    characterized in that before the blank is shaped into the hollow profile at least one of functional and stiffening elements are joined onto the blank.
EP06793623A 2005-09-20 2006-09-19 Method and device for the production of hollow profiled elements Not-in-force EP1926565B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005044948A DE102005044948A1 (en) 2005-09-20 2005-09-20 Method and device for producing hollow profiles
PCT/EP2006/066486 WO2007033957A1 (en) 2005-09-20 2006-09-19 Method and device for the production of hollow profiled elements

Publications (2)

Publication Number Publication Date
EP1926565A1 EP1926565A1 (en) 2008-06-04
EP1926565B1 true EP1926565B1 (en) 2012-01-25

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Application Number Title Priority Date Filing Date
EP06793623A Not-in-force EP1926565B1 (en) 2005-09-20 2006-09-19 Method and device for the production of hollow profiled elements

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US (1) US8490459B2 (en)
EP (1) EP1926565B1 (en)
AT (1) ATE542615T1 (en)
DE (1) DE102005044948A1 (en)
WO (1) WO2007033957A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE75038C (en) BABCOCK & WlLCOX, LIMITED, in London Press for the production of tubes with a rectangular or polygonal cross-section
US2158176A (en) * 1937-06-05 1939-05-16 Eastman Kodak Co Forming die for shaping tubes
US4184355A (en) * 1974-09-11 1980-01-22 Hidaka Engineering Co., Ltd. Method and a punch/die assembly for the production of heat exchanger fins
DE3514485A1 (en) 1985-04-22 1986-10-23 Heinz 4000 Düsseldorf Regenhardt Method and apparatus for the production of slot-bridge filter tubes
FR2673589B1 (en) 1991-03-04 1993-07-09 Nacan STEERING COLUMN TUBE FOR MOTOR VEHICLE.
CA2103002C (en) * 1993-11-12 2000-10-24 Ernest R. Bodnar Hot rolled beam and method of manufacture
JP2776795B2 (en) * 1996-06-06 1998-07-16 株式会社三五 Pipe manufacturing method
DE19827798A1 (en) * 1998-06-23 1999-12-30 Thyssenkrupp Stahl Ag Production of longitudinally welded pipes out of plane sheet metal blanks
DE10038337A1 (en) 2000-08-05 2002-02-21 Thyssenkrupp Stahl Ag Tube profile manufacturing process involves joining reinforcing and/or functional elements to flat plate, deforming plate into tube and joining its edges
DE10234253B3 (en) * 2002-07-27 2004-04-08 Hydro Aluminium Deutschland Gmbh Crash box for motor vehicles
DE10358502B3 (en) * 2003-12-13 2005-04-07 Daimlerchrysler Ag Production of a hollow profile used as a branched part for pipes comprises stamping a secondary molding element to connect to a further component in a pre-curved region before winding

Also Published As

Publication number Publication date
EP1926565A1 (en) 2008-06-04
DE102005044948A1 (en) 2007-03-22
ATE542615T1 (en) 2012-02-15
WO2007033957A1 (en) 2007-03-29
US20090178455A1 (en) 2009-07-16
US8490459B2 (en) 2013-07-23

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