EP2616197A1 - Device and method for producing at least partially closed hollow profiles with rotatable die halves and low cycle time - Google Patents

Device and method for producing at least partially closed hollow profiles with rotatable die halves and low cycle time

Info

Publication number
EP2616197A1
EP2616197A1 EP11755339.6A EP11755339A EP2616197A1 EP 2616197 A1 EP2616197 A1 EP 2616197A1 EP 11755339 A EP11755339 A EP 11755339A EP 2616197 A1 EP2616197 A1 EP 2616197A1
Authority
EP
European Patent Office
Prior art keywords
partially
tool
shaped
die
punch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11755339.6A
Other languages
German (de)
French (fr)
Other versions
EP2616197B1 (en
Inventor
Thomas Flehmig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Steel Europe AG
Original Assignee
ThyssenKrupp Steel Europe AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ThyssenKrupp Steel Europe AG filed Critical ThyssenKrupp Steel Europe AG
Publication of EP2616197A1 publication Critical patent/EP2616197A1/en
Application granted granted Critical
Publication of EP2616197B1 publication Critical patent/EP2616197B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • B21D5/015—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments for making tubes
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • 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
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture 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
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/08—Dies with different parts for several steps in a process
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/14—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by turning devices, e.g. turn-tables

Definitions

  • the invention relates to a device for producing at least partially closed hollow sections of a
  • Circuit board by a U-O-forming with a tool comprising at least one U-punch and at least one upper die in a first mold half.
  • the invention relates to a process for the preparation of at least partially
  • At least partially closed hollow sections are often used in the automotive industry to replace open and welded profiles.
  • Forming resulting number of forming steps precludes an economical way of manufacturing.
  • the standard U-O forming process requires at least two forming steps, whereby each forming step is carried out separately in one or more presses and the component is passed between the workstations. With a favorable design, although a finished part can be produced per press stroke, but this requires
  • German Laid-Open Publication DE 10 2007 021 798 A1 is a device for producing at least
  • the cycle time achievable by this device is in need of improvement, since a finished part is produced only with every second press stroke.
  • the present invention is based on the object, an apparatus and a method for producing at least partially closed
  • the object is achieved by a device, at least two identical, at least partially U-shaped dies are provided in a second mold half, the U-punch and the upper die of the first mold half when closing the tool simultaneously with each an at least partially U-shaped die are engaged, the
  • Rotation axis are arranged rotationally symmetrical and the first and the second mold half are rotatable relative to each other about this axis of rotation, so that by rotation of the first and / or the second mold half of the U-punch and the upper die each with the first or the second at least partially U- shaped die can be engaged.
  • the device according to the invention has in a tool each rotationally symmetrical arranged mold elements for performing a U-forming a planar board and an O-forming an at least partially U-shaped board to a finished at least partially closed hollow profile in both mold halves. It makes it possible, for example, by a simple rotation of the first mold half
  • the inventive device can thereby continue
  • Molded half is fixed, wherein the first or the second mold half on a to the
  • Rotary axis rotatable mounting plate is arranged.
  • Mounting plate which is rotatably mounted about the rotation axis arranged. This has the advantage that the costs for the production of the device are kept low and beyond wear-prone, moving parts of the
  • both mold halves rotatably mounted on a respective mounting plate for example by halving the
  • Hollow profiles may preferably be provided a Kernzugvorraum for each die of the second mold half.
  • the Kernzugvorraum allows easy insertion of a support core in the at least partially U-shaped formed board before the O-forming to a partially closed hollow profile.
  • the device according to the invention can be further improved in that downholders are associated with the U-punch in the first mold half. Hold-downs are particularly needed to control the material intake in the manufacture of an at least partially U-shaped board.
  • the at least partially U-shaped device can be further improved in that downholders are associated with the U-punch in the first mold half. Hold-downs are particularly needed to control the material intake in the manufacture of an at least partially U-shaped board.
  • Hollow sections corresponds to the maximum length of a U-leg of the at least partially U-shaped formed board prior to their O-forming. These side walls of the at least partially U-shaped dies allow a deformation of the at least partially U-shaped board with higher process reliability in the subsequent O-forming, since with these the
  • Threading process of the legs of the at least partially U-shaped board is improved in the upper die.
  • the capacity of the device can be increased, that the first tool half a plurality of pairs and rotationally symmetrical to each axis of rotation
  • partially U-shaped dies In other words, in a tool half of the device, for example, two rotatable part tools, each with a U-punch and each have a top die be present. In conjunction with the opposing identical dies arranged then two finished shaped, at least partially closed hollow profiles can be produced with each stroke.
  • the capacity of the device can thus be doubled, for example.
  • the object indicated above is achieved by a method which uses the device according to the invention and comprises the following steps:
  • next closing stroke are equipped with parts to be reshaped.
  • parts to be reshaped due to the simple construction of the
  • the cost of the method correspondingly low.
  • Rotated rotation axis It is particularly advantageous if one of the tool halves is designed to be stationary, so that the drives for carrying out the rotation can be dispensed with. In this case, the other drives are not needed and reduces the expenditure on equipment. It is also conceivable, as already stated, that both
  • Rotation axis are rotated in opposite directions, to re-engage with each other, the rotation angle of both
  • the O-forming can be designed in accordance with a further refinement process more reliable that before
  • a support core in the respective at least partially U-shaped board is positioned in the second mold half. After the extrusion, the support core is removed again from the finished molded hollow profile, which is at least partially closed.
  • the at least partially U-shaped dies on laterally displaceable portions of the side walls with Einlaufrundungen and move when closing the mold halves the at least partially U-shaped dies on laterally displaceable portions of the side walls with Einlaufrundungen and move when closing the mold halves
  • Processing steps are carried out in the device according to the invention to produce the at least partially closed hollow profile.
  • Fig. 11 and 12 is a schematic plan view of the
  • FIGS. 1 to 9 show in a schematic
  • the tool 3 has two tool halves 6, 8, wherein in the first
  • Tool half 6 a U-punch 4 and a top die 5
  • the second mold half 8 has two identical at least partially U-shaped dies 7, which together with the U-punch 4 and the upper dies 5 of the first mold half rotationally symmetrical to
  • Rotation axis 9 are arranged.
  • the U-punch 4 and the upper die 5 are at a
  • Downholder 11 is provided, via which the material flow of the board during the U-forming can be controlled and which fix the board 2 during the deformation.
  • Tool half 6 are arranged, is rotatable about the
  • Control material flow during forming by setting a corresponding contact force. After reaching the end position, the tool opens again until the
  • Tool halves 6, 8 can be rotated against each other. A rotation of the first tool half 6, as it is in
  • present rotation example 9 allows the positioning of the U-punch 4 above a board 12, which has been inserted in the second at least partially U-shaped die 7 of the mold half 8.
  • a support core 13 is not shown on a
  • Kernzugvortechnische introduced into the now at least partially U-shaped formed plate 2 in the first at least partially U-shaped die of the second mold half 8. Subsequently, a renewed closing movement of the
  • Figure 5 shows the embodiment of the device in the open state.
  • the partially closed hollow profile 2 can be removed from the opened tool 3, as in FIG. 6
  • Tool half 8 is rotated so that the U-punch 4, the newly inserted board 17 during the next closing process to form an at least partially U-shaped board, Fig. 9.
  • the second tool half 8 ' comprises a total of four identical at least partially U-shaped dies 7', which are used for U-O-forming.
  • the device 1 'shown in Figure 10 is therefore characterized by a twice as high capacity as the device shown in Figures 1 to 9 from.
  • FIGS. 11 and 12 the threading process using the laterally displaceable subregions 20 of the side walls of the at least partially U-shaped dies 7 in the case of the O-forming is illustrated.
  • the upper die 5 has
  • the side walls of the at least partially egg-shaped ⁇ die 7 for this purpose have a height of at least half the maximum, the rolled side wall length of the hollow profile, that one leg of the at least partial U-profile. Overall, this can be a process-safe method for producing at least partially closed hollow sections with low cycle times and

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Abstract

The invention relates to a device for producing at least partially closed hollow profiles from a plate by a U-O forming operation with a tool comprising at least one U-punch and at least one upper die in a first tool half. The object of proposing a device and a method for producing at least partially closed hollow profiles from a plate that ensure the production of corresponding profiles with a short cycle time and high reliability of the process is achieved by a device by providing at least two identical, at least partially U-shaped dies in a second tool half, by the U-punch and the upper die of the first tool half being simultaneously in engagement with in each case an at least partially U-shaped die during the closing of the tool, by the at least one U-punch and the at least one upper die of the first tool half and the at least two at least partially U-shaped dies of the second tool half being arranged rotationally symmetrically in relation to an axis of rotation extending in the closing direction of the tool, and by the first and second tool halves being rotatable in relation to each other about this axis of rotation, such that a rotation of the first and/or second tool half has the effect that the U-punch and the upper die can respectively be in engagement with the first or the second at least partially U-shaped die.

Description

Vorrichtung und Verfahren zur Herstellung von zumindest teilweise geschlossenen Hohlprofilen mit drehbaren  Apparatus and method for producing at least partially closed hollow profiles with rotatable
Gesenkhälften und geringer Taktzeit  Die halves and low cycle time
Die Erfindung betrifft eine Vorrichtung zur Herstellung zumindest teilweise geschlossener Hohlprofile aus einer The invention relates to a device for producing at least partially closed hollow sections of a
Platine durch eine U-O-Ümformung mit einem Werkzeug umfassend mindestens einen U-Stempel und mindestens ein Obergesenk in einer ersten Werkzeughälfte. Daneben betrifft die Erfindung ein Verfahren zur Herstellung von zumindest teilweise Circuit board by a U-O-forming with a tool comprising at least one U-punch and at least one upper die in a first mold half. In addition, the invention relates to a process for the preparation of at least partially
geschlossenen Hohlprofilen aus einer Platine. closed hollow profiles from a circuit board.
Zumindest teilweise geschlossene Hohlprofile werden häufig im Kraftfahrzeugbau zum Ersetzen von offenen und miteinander verschweißten Profilen verwendet. Die aus der komplexen At least partially closed hollow sections are often used in the automotive industry to replace open and welded profiles. The out of the complex
Formgebung resultierende Anzahl an Umformschritten steht jedoch einer wirtschaftlichen Herstellweise entgegen. Die serienmäßig verwendete U-O-Umformung benötigt mindestens zwei Einformschritte, wobei jeder Einformschritt separat in einer oder mehreren Pressen realisiert wird und das Bauteil zwischen den Arbeitsstationen weitergereicht wird. Bei günstiger Auslegung kann zwar so pro Pressenhub ein fertiges Teil hergestellt werden, allerdings benötigt diese Forming resulting number of forming steps, however, precludes an economical way of manufacturing. The standard U-O forming process requires at least two forming steps, whereby each forming step is carried out separately in one or more presses and the component is passed between the workstations. With a favorable design, although a finished part can be produced per press stroke, but this requires
Vorrichtung umfangreiche Werkzeugsätze sowie mehrere Roboter oder Feeder zum Transport der Platinen bzw. der halbfertigen Platinen zwischen den einzelnen Pressen. Insbesondere besteht die Problematik, dass bei der U-O-Umformung die zunächst zumindest teilweise U-förmig umgeformte Platine aus dem Device extensive tool sets and several robots or feeders for transporting the boards or half-finished boards between the individual presses. In particular, there is the problem that in the U-O-forming the first at least partially U-shaped formed board from the
Gesenk entnommen wird und in das Gesenk zur O-Umformung eingebracht wird. Hieraus resultieren prozesstechnische Probleme, insbesondere in Bezug auf eine Schieflage während des Einsetzens in das O-Gesenk. Darüber hinaus können Die is removed and is introduced into the die for O-forming. This results in process engineering Problems, especially in relation to a tilt during insertion into the O-die. In addition, you can
Probleme bei stark rückfedernden Werkstoffen darin bestehen, dass diese nicht ohne Weiteres in das Gesenk zur O-Umformung eingebracht werden können. Aus der auf die Anmelderin Problems with strongly spring-back materials are that they can not easily be introduced into the die for O-forming. From the to the applicant
zurückgehende deutsche Offenlegungsschrift DE 10 2007 021 798 AI ist eine Vorrichtung zur Herstellung von zumindest German Laid-Open Publication DE 10 2007 021 798 A1 is a device for producing at least
teilweise geschlossenen Profilen bekannt, welche eine partially closed profiles known which a
verschiebbare Grundplatte und einen verschiebbaren Stempel umfasst, so dass die zunächst U-förmig umgeformte Platine in der entsprechenden Matrize vor der O-Umformung verbleiben kann. Die von dieser Vorrichtung erreichbare Taktzeit ist allerdings verbesserungswürdig, da lediglich mit jedem zweiten Pressenhub ein fertiges Teil hergestellt wird. slidable base plate and a displaceable punch includes, so that the initially U-shaped reshaped board can remain in the corresponding die before the O-forming. However, the cycle time achievable by this device is in need of improvement, since a finished part is produced only with every second press stroke.
Darüber hinaus ist der apparative Aufwand dieser Vorrichtung relativ groß. In addition, the expenditure on equipment of this device is relatively large.
Hiervon ausgehend liegt der vorliegenden Erfindung daher die Aufgabe zu Grunde, eine Vorrichtung und ein Verfahren zur Herstellung von zumindest teilweise geschlossenen On this basis, the present invention is based on the object, an apparatus and a method for producing at least partially closed
Hohlprofilen aus einer Platine vorzuschlagen, welches die Herstellung von entsprechenden Profilen mit kurzer Taktzeit und hoher Prozesssicherheit gewährleistet. Gemäß einer ersten Lehre der vorliegenden Erfindung wird die Aufgabe durch eine Vorrichtung dadurch gelöst, mindestens zwei identische, zumindest teilweise U-förmige Gesenke in einer zweiten Werkzeughälfte vorgesehen sind, der U-Stempel und das Obergesenk der ersten Werkzeughälfte beim Schließen des Werkzeugs gleichzeitig mit jeweils einer zumindest teilweise U-förmigen Matrize im Eingriff stehen, der  To propose hollow profiles from a board, which ensures the production of corresponding profiles with a short cycle time and high process reliability. According to a first teaching of the present invention, the object is achieved by a device, at least two identical, at least partially U-shaped dies are provided in a second mold half, the U-punch and the upper die of the first mold half when closing the tool simultaneously with each an at least partially U-shaped die are engaged, the
mindestens eine U-Stempel und das mindestens eine Obergesenk der ersten Werkzeughälfte und die mindestens zwei zumindest teilweise U-förmigen Gesenke der zweiten Werkzeughälfte zu einer in Schließrichtung des Werkzeugs verlaufenden at least one U-stamp and the at least one upper die the first mold half and the at least two at least partially U-shaped dies of the second mold half to a running in the closing direction of the tool
Rotationsachse rotationssymmetrisch angeordnet sind und die erste und die zweite Werkzeughälfte relativ zueinander um diese Rotationsachse drehbar sind, so dass durch eine Drehung der ersten und/oder der zweiten Werkzeughälfte der U-Stempel und das Obergesenk jeweils mit dem ersten oder dem zweiten zumindest teilweise U-förmigen Gesenk in Eingriff stehen können. Rotation axis are arranged rotationally symmetrical and the first and the second mold half are rotatable relative to each other about this axis of rotation, so that by rotation of the first and / or the second mold half of the U-punch and the upper die each with the first or the second at least partially U- shaped die can be engaged.
Die erfindungsgemäße Vorrichtung weist in einem Werkzeug jeweils rotationssymmetrisch angeordnete Formelemente zur Durchführung einer U-Umformung einer ebenen Platine und einer O-Umformung einer zumindest teilweise U-förmigen Platine zu einem fertig zumindest teilweise geschlossenen Hohlprofil in beiden Werkzeughälften auf. Sie ermöglicht es, beispielsweise durch eine einfache Drehung der ersten Werkzeughälfte The device according to the invention has in a tool each rotationally symmetrical arranged mold elements for performing a U-forming a planar board and an O-forming an at least partially U-shaped board to a finished at least partially closed hollow profile in both mold halves. It makes it possible, for example, by a simple rotation of the first mold half
gegenüber der zweiten Werkzeughälfte, dass die über den U- Stempel zumindest teilweise zu einer U-förmigen Platine umgeformte Platine mit dem Obergesenk zu einem zumindest teilweise geschlossenen Profil umgeformt werden kann, ohne dass die Platine aus dem U-förmigen Gesenk entnommen werden muss. Ist gleichzeitig in der anderen U-förmigen Platine eine ebene Platine eingelegt, kann auch beim nächsten Schließen des Werkzeugs bei vorheriger Drehung der Werkzeughälften gegeneinander ein Bauteil fertig gestellt werden. Im Ergebnis sind die Taktzeiten zur Herstellung von zumindest teilweise geschlossenen Hohlprofilen sehr gering. Darüber hinaus wird auch die Gefahr einer Beschädigung der Platine durch einen Wechsel der Gesenke vor Fertigstellung des teilweise relative to the second tool half, that over the U-shaped stamp at least partially reshaped to a U-shaped board with the blank die can be transformed to an at least partially closed profile without the board must be removed from the U-shaped die. If at the same time a flat board is inserted in the other U-shaped board, a component can be completed against each other during the next closing of the tool with prior rotation of the tool halves. As a result, the cycle times for the production of at least partially closed hollow profiles are very low. In addition, the risk of damage to the board by changing the dies before completion of the part is also
geschlossenen Hohlprofils vermieden. Die erfindungsgemäße Verrichtung kann dadurch weiter closed hollow profile avoided. The inventive device can thereby continue
ausgestaltet werden, dass die erste oder die zweite be designed that the first or the second
Werkzeughälfte feststehend ausgebildet ist, wobei die erste oder die zweite Werkzeughälfte auf einer um die Molded half is fixed, wherein the first or the second mold half on a to the
Rotationsachse drehbaren Montageplatte angeordnet ist.  Rotary axis rotatable mounting plate is arranged.
Üblicher Weise wird lediglich eine der Werkzeughälften, die erste oder die zweite Werkzeughälfte, auf einer Usually, only one of the tool halves, the first or the second tool half, on a
Montageplatte, welche um die Rotationsachse drehbar gelagert ist, angeordnet. Dies hat den Vorteil, dass die Kosten für die Herstellung der Vorrichtung geringer gehalten werden und darüber hinaus verschleißanfällige, bewegte Teile der Mounting plate which is rotatably mounted about the rotation axis arranged. This has the advantage that the costs for the production of the device are kept low and beyond wear-prone, moving parts of the
Vorrichtung vermieden werden. Allerdings ist auch denkbar, beide Werkzeughälften drehbar auf jeweils einer Montageplatte anzuordnen, um beispielsweise durch eine Halbierung des Device can be avoided. However, it is also conceivable to arrange both mold halves rotatably mounted on a respective mounting plate, for example by halving the
Drehwinkels der Werkzeughälften die Taktzeiten zu minimieren.  Rotation angle of the tool halves to minimize the cycle times.
Zur Herstellung komplexer Formen aber auch zur Verbesserung des Abformens der zumindest teilweise geschlossenen For the production of complex shapes but also to improve the molding of at least partially closed
Hohlprofile kann vorzugsweise eine Kernzugvorrichtung für jede Matrize der zweiten Werkzeughälfte vorgesehen sein. Die Kernzugvorrichtung ermöglicht das einfache Einbringen eines Stützkerns in die zumindest teilweise U-förmig umgeformte Platine vor der O-Umformung zu einem teilweise geschlossenen Hohlprofil. Hollow profiles may preferably be provided a Kernzugvorrichtung for each die of the second mold half. The Kernzugvorrichtung allows easy insertion of a support core in the at least partially U-shaped formed board before the O-forming to a partially closed hollow profile.
Darüber hinaus kann die erfindungsgemäße Vorrichtung dadurch weiter verbessert werden, dass dem U-Stempel in der ersten Werkzeughälfte Niederhalter zugeordnet sind. Niederhalter werden insbesondere dazu benötigt, den Materialeinzug bei der Herstellung einer zumindest teilweise U-förmigen Platine zu kontrollieren . Vorzugsweise weisen die zumindest teilweise U-förmigen In addition, the device according to the invention can be further improved in that downholders are associated with the U-punch in the first mold half. Hold-downs are particularly needed to control the material intake in the manufacture of an at least partially U-shaped board. Preferably, the at least partially U-shaped
Gesenke der zweiten Werkzeughälfte Seitenwände auf, deren Höhe mindestens die Hälfte der maximalen, ausgerollten Dies the second half of the mold side walls whose height is at least half of the maximum, unrolled
Seitenwandlänge des herzustellenden Hohlprofils beträgt. Die maximal ausgerollte Seitenwandlänge des herzustellenden Side wall length of the hollow profile to be produced. The maximum rolled side wall length of the produced
Hohlprofils entspricht der maximalen Länge eines U-Schenkels der zumindest teilweise U-förmig umgeformten Platine vor deren O-Umformung. Diese Seitenwände der zumindest teilweise U-förmigen Gesenke ermöglichen eine Umformung der zumindest teilweise U-förmigen Platine mit höherer Prozesssicherheit bei der nachfolgenden O-Umformung, da mit diesen der Hollow sections corresponds to the maximum length of a U-leg of the at least partially U-shaped formed board prior to their O-forming. These side walls of the at least partially U-shaped dies allow a deformation of the at least partially U-shaped board with higher process reliability in the subsequent O-forming, since with these the
Einfädelprozess der Schenkel der zumindest teilweise U- förmigen Platine in das Obergesenk verbessert wird. Threading process of the legs of the at least partially U-shaped board is improved in the upper die.
Die Kapazität der Vorrichtung kann dadurch gesteigert werden, dass die erste Werkzeughälfte eine Mehrzahl an paarweise und rotationssymmetrisch zu jeweils einer Rotationsachse The capacity of the device can be increased, that the first tool half a plurality of pairs and rotationally symmetrical to each axis of rotation
angeordnete U-Stempel und Obergesenke aufweist und die zweite Werkzeughälfte eine identische Anzahl rotationssymmetrisch zu den jeweiligen Rotationsachsen angeordnete, zumindest arranged U-punch and upper dies and the second mold half an identical number rotationally symmetrical to the respective axes of rotation arranged, at least
teilweise U-förmige Gesenke aufweist. Mit anderen Worten können in einer Werkzeughälfte der Vorrichtung beispielsweise zwei drehbare Teilwerkzeuge mit jeweils einem U-Stempel und jeweils einem Obergesenk vorhanden sein. In Verbindung mit den gegenüber angeordneten identischen Gesenken können dann mit jedem Arbeitshub zwei fertig geformte, zumindest teilweise geschlossene Hohlprofile hergestellt werden. Die Kapazität der Vorrichtung kann also beispielsweise verdoppelt werden. Durch die Erhöhung der Anzahl Umformelemente lässt sich nicht nur Taktzeit verringern, sondern es lassen sich auch noch weitere Bearbeitungsschritte in der gleichen Vorrichtung integrieren . partially U-shaped dies. In other words, in a tool half of the device, for example, two rotatable part tools, each with a U-punch and each have a top die be present. In conjunction with the opposing identical dies arranged then two finished shaped, at least partially closed hollow profiles can be produced with each stroke. The capacity of the device can thus be doubled, for example. By increasing the number of forming elements can not only reduce cycle time, but it can also be integrate further processing steps in the same device.
Gemäß einer zweiten Lehre der vorliegenden Erfindung wird die oben aufgezeigt Aufgabe durch ein Verfahren gelöst, welches die erfindungsgemäße Vorrichtung verwendet und die folgenden Schritte umfasst: According to a second teaching of the present invention, the object indicated above is achieved by a method which uses the device according to the invention and comprises the following steps:
- Einlegen einer ersten ebenen Platine in ein erstes - Inserting a first planar board in a first
zumindest teilweise U-förmiges Gesenk der zweiten at least partially U-shaped die of the second
Werkzeughälfte,  Tool half,
- Umformen der ersten Platine zu einer zumindest teilweise U- förmigen Platine durch Schließen der Werkzeughälften unter Verwendung des U-Stempels der ersten Werkzeughälfte, - Forming the first board to an at least partially U-shaped board by closing the tool halves using the U-punch of the first mold half,
- Öffnen des Werkzeugs und Drehung der ersten und zweiten Werkzeughälfte gegeneinander um eine in Schließrichtung des Werkzeugs verlaufenden Rotationsachse, so dass der U-Stempel der ersten Werkzeughälfte über der zweiten zumindest - Opening the tool and rotation of the first and second tool half against each other about an axis of rotation extending in the closing direction of the tool, so that the U-punch of the first tool half over the second at least
teilweise U-förmigen Matrize der zweiten Werkzeughälfte und das Obergesenk der ersten Werkzeughälfte über dem ersten zumindest teilweise U-förmigen Gesenk der zweiten partially U-shaped die of the second mold half and the upper die of the first mold half over the first at least partially U-shaped die of the second
Werkzeughälfte positioniert ist, Tool half is positioned,
- Einlegen einer zweiten ebenen Platine in dem zweiten zumindest teilweise U-förmigen Gesenk der zweiten - Inserting a second planar board in the second at least partially U-shaped die of the second
Werkzeughälfte , - Schließen der Werkzeughälften und gleichzeitiges Umformen der teilweise U-förmigen ersten Platine zu einem zumindest teilweise geschlossenen Hohlprofil unter Verwendung des Obergesenks der ersten Werkzeughälfte und Umformen der zweiten Platine zu einer teilweise U-förmigen Platine unter Verwendung des U-Stempels der ersten Werkzeughälfte. Mit dem erfindungsgemäßen Verfahren ist es möglich unter besonders kurzen Taktzeiten mit jedem Schließhub des Tool half, - closing the mold halves and simultaneously forming the partially U-shaped first board to an at least partially closed hollow profile using the Upper die of the first mold half and forming the second board to a partially U-shaped board using the U-stamp of the first mold half. With the method according to the invention it is possible under particularly short cycle times with each closing stroke of
Werkzeugs jeweils ein teilweise geschlossenes Hohlprofil herzustellen, sobald beide U-förmigen Gesenke vor dem Tool to produce a partially closed hollow profile, as soon as both U-shaped dies before the
nächsten Schließhub mit umzuformenden Teilen bestückt sind. Darüber hinaus ist aufgrund des einfachen Aufbaus der next closing stroke are equipped with parts to be reshaped. In addition, due to the simple construction of the
erfindungsgemäßen Vorrichtung die Kosten des Verfahrens entsprechend gering. Device according to the invention, the cost of the method correspondingly low.
Vorzugsweise wird die erste und/oder die zweite Preferably, the first and / or the second
Werkzeughälfte nach dem Öffnen des Werkzeugs um die Tool half after opening the tool around the
Rotationsachse gedreht. Insbesondere vorteilhaft ist, wenn eine der Werkzeughälften feststehend ausgebildet ist, so dass auf die Antriebe zur Durchführung der Rotation verzichtet werden kann. In diesem Fall werden die weiteren Antriebe nicht benötigt und der apparative Aufwand verringert. Denkbar ist aber auch, wie bereits ausgeführt, dass beide  Rotated rotation axis. It is particularly advantageous if one of the tool halves is designed to be stationary, so that the drives for carrying out the rotation can be dispensed with. In this case, the other drives are not needed and reduces the expenditure on equipment. It is also conceivable, as already stated, that both
Werkzeughälften nach dem Öffnen des Werkzeugs um die Tool halves after opening the tool around the
Rotationsachse entgegengesetzt gedreht werden, um miteinander erneut im Eingriff zu stehen, um die Drehwinkel beider Rotation axis are rotated in opposite directions, to re-engage with each other, the rotation angle of both
Werkzeughälften zu halbieren und insofern auch die Taktzeiten zu reduzieren. Halves halves of the mold and thus reduces the cycle times.
Die O-Umformung kann gemäß einer weiteren Ausgestaltung dadurch prozesssicherer gestaltet werden, dass vor dem The O-forming can be designed in accordance with a further refinement process more reliable that before
Umformen einer zumindest teilweisen U-förmigen Platine zu einem zumindest teilweise geschlossenen Hohlprofil unter Verwendung einer Kernzugvorrichtung ein Stützkern in der jeweiligen zumindest teilweise U-förmigen Platine in der zweiten Werkzeughälfte positioniert wird. Nach der 0- ümformung wird der Stützkern wieder aus dem fertig geformten zumindest teilweise geschlossenen Hohlprofil entfernt. Forming an at least partially U-shaped board to an at least partially closed hollow profile using a Kernzugvorrichtung a support core in the respective at least partially U-shaped board is positioned in the second mold half. After the extrusion, the support core is removed again from the finished molded hollow profile, which is at least partially closed.
Weisen schließlich gemäß einer weiteren Ausführungsform die zumindest teilweise U-förmigen Gesenke seitlich verschiebbare Teilbereiche der Seitenwände mit Einlaufrundungen auf und verschieben beim Schließen der Werkzeughälften die Finally, according to a further embodiment, the at least partially U-shaped dies on laterally displaceable portions of the side walls with Einlaufrundungen and move when closing the mold halves the
Seitenwände des Obergesenks der ersten Werkzeughälfte die verschiebbaren Teilbereiche der Seitenwände der zumindest teilweise U-förmigen Gesenke der zweiten Werkzeughälfte nach außen, kann der Einfädelungsprozess der U-Schenkel der zumindest teilweise U-förmigen Platine bei der O-Umformung zu einem zumindest teilweise geschlossenen Hohlprofil Side walls of the upper die of the first mold half the displaceable portions of the side walls of the at least partially U-shaped dies of the second mold half to the outside, the Einfädelungsprozess the U-legs of the at least partially U-shaped board in the O-forming to an at least partially closed hollow profile
erleichtert werden. be relieved.
Schließlich können vorzugsweise auch noch weitere Finally, preferably also other
Bearbeitungsschritte in der erfindungsgemäßen Vorrichtung durchgeführt werden, um das zumindest teilweise geschlossene Hohlprofil herzustellen. Hier kann der Vorteil einer sehr genauen Positionierung der Platinen vor bzw. nach den Processing steps are carried out in the device according to the invention to produce the at least partially closed hollow profile. Here is the advantage of a very accurate positioning of the boards before or after
Umformschritten ausgenutzt werden. Die Erfindung soll im Weiteren anhand von Forming steps are exploited. The invention will be further described with reference to
Ausführungsbeispielen in Verbindung mit der Zeichnung näher erläutert werden. Die Zeichnung zeigt in  Embodiments will be explained in more detail in conjunction with the drawings. The drawing shows in
Fig. 1 bis in einer schematischen Schnittansicht Fig. 1 to a schematic sectional view
erfindungsgemäße Vorrichtung in den  inventive device in the
verschiedenen Prozessschritten bei der Herstellung zumindest teilweise geschlossener Hohlprofile , various process steps in the Production of at least partially closed hollow profiles,
Fig. 10 in einer schematischen dreidimensionalen Fig. 10 in a schematic three-dimensional
Darstellung eine erfindungsgemäße Vorrichtung mit einer Mehrzahl an paarweise angeordneten U-Stempel und Obergesenken in einer ersten Werkzeughälfte und Fig. 11 und 12 eine schematische Draufsicht auf das  Represent a device according to the invention with a plurality of paired U-punch and top dies in a first mold half and Fig. 11 and 12 is a schematic plan view of the
Obergesenk der ersten Werkzeughälfte während des Einfädeins der Schenkel der zumindest teilweise U-förmigen Platine.  Upper die of the first mold half during the Einfädeins the legs of the at least partially U-shaped board.
Die Figuren 1 bis 9 zeigen in einer schematischen Figures 1 to 9 show in a schematic
Schnittansicht eine erfindungsgemäße Vorrichtung 1 zur Sectional view of an inventive device 1 for
Herstellung zumindest teilweise geschlossener Hohlprofile aus einer Platine 2, mit einem Werkzeug 3. Das Werkzeug 3 weist zwei Werkzeughälften 6, 8 auf, wobei in der ersten Production of at least partially closed hollow sections of a board 2, with a tool 3. The tool 3 has two tool halves 6, 8, wherein in the first
Werkzeughälfte 6 ein U-Stempel 4 und ein Obergesenk 5 Tool half 6 a U-punch 4 and a top die 5
vorgesehen ist. Die zweite Werkzeughälfte 8 weist zwei identische zumindest teilweise U-förmige Gesenke 7 auf, welche gemeinsam mit dem U-Stempel 4 und den Obergesenke 5 der ersten Werkzeughälfte rotationssymmetrisch zur is provided. The second mold half 8 has two identical at least partially U-shaped dies 7, which together with the U-punch 4 and the upper dies 5 of the first mold half rotationally symmetrical to
Rotationsachse 9 angeordnet sind. Rotation axis 9 are arranged.
Der U-Stempel 4 und das Obergesenk 5 stehen bei einer The U-punch 4 and the upper die 5 are at a
Schließbewegung des Werkzeugs 3 gleichzeitig in Eingriff mit beiden zumindest teilweise U-förmigen Gesenken 7 der zweiten Werkzeughälfte 8. Wie Figur 1 zeigt, sind außerdem Closing movement of the tool 3 at the same time in engagement with two at least partially U-shaped dies 7 of the second mold half 8. As Figure 1 shows are also
Niederhalter 11 vorgesehen, über welche der Materialfluss der Platine während der U-Umformung gesteuert werden kann und welche die Platine 2 während der Umformung fixieren. Die Montageplatte 10, auf welcher sowohl der U-Stempel 4 als auch das Obergesenk 5 und die Niederhalter 11 der ersten Downholder 11 is provided, via which the material flow of the board during the U-forming can be controlled and which fix the board 2 during the deformation. The mounting plate 10, on which both the U-punch 4 and the upper die 5 and the hold-down 11 of the first
Werkzeughälfte 6 angeordnet sind, ist drehbar um die Tool half 6 are arranged, is rotatable about the
Rotationsachse 9 gelagert. Rotation axis 9 stored.
In Figur 2 ist nun die erfindungsgemäße Vorrichtung in geschlossenem Zustand dargestellt. Der U-Stempel 4 formt die eingelegte erste Platine 2 zu einer zumindest teilweise U- förmigen Platine um, wobei die Niederhalter 11 den In Figure 2, the inventive device is now shown in the closed state. The U-punch 4 forms the inserted first board 2 to an at least partially U-shaped board, wherein the hold-down 11 the
Materialfluss während der Umformung durch Einstellung einer entsprechenden Anpresskraft steuern. Nach dem Erreichen der Endposition öffnet sich das Werkzeug wieder, bis die  Control material flow during forming by setting a corresponding contact force. After reaching the end position, the tool opens again until the
Werkzeughälften 6, 8 gegeneinander verdreht werden können. Eine Rotation der ersten Werkzeughälfte 6, wie es im Tool halves 6, 8 can be rotated against each other. A rotation of the first tool half 6, as it is in
vorliegenden Äusführungsbeispiel dargestellt ist, um die Rotationsachse 9 ermöglicht die Positionierung des U-Stempels 4 oberhalb einer Platine 12, welche in dem zweiten zumindest teilweise U-förmigen Gesenk 7 der Werkzeughälfte 8 eingelegt worden ist. Darüber hinaus wird, wie in Figur 3 dargestellt, ein Stützkern 13 über eine nicht dargestellt present rotation example 9 allows the positioning of the U-punch 4 above a board 12, which has been inserted in the second at least partially U-shaped die 7 of the mold half 8. In addition, as shown in Figure 3, a support core 13 is not shown on a
Kernzugvorrichtung in die jetzt zumindest teilweise U-förmige umgeformte Platine 2 in dem ersten zumindest teilweise U- förmigen Gesenk der zweiten Werkzeughälfte 8 eingebracht. Anschließend erfolgt eine erneute Schließbewegung des  Kernzugvorrichtung introduced into the now at least partially U-shaped formed plate 2 in the first at least partially U-shaped die of the second mold half 8. Subsequently, a renewed closing movement of the
Werkzeugs, wie in Figur 4 dargestellt ist. Tool, as shown in Figure 4.
Bei dieser Schließbewegung wird sowohl ein zumindest In this closing movement, both an at least
teilweise geschlossenes Hohlprofil 2 als auch eine zumindest teilweise U-förmige Platine 14 erzeugt. Dies ist der erste Schließhub des Werkzeugs, bei welchem ein fertig hergestelltes, teilweise geschlossenes Hohlprofil 2 hergestellt wird. partially closed hollow profile 2 as well as an at least partially U-shaped board 14 is generated. This is the first closing stroke of the tool in which a finished made, partially closed hollow section 2 is produced.
Figur 5 zeigt das Ausführungsbeispiel der Vorrichtung in geöffnetem Zustand. Das teilweise geschlossene Hohlprofil 2 kann aus dem geöffneten Werkzeug 3, wie in Figur 6 Figure 5 shows the embodiment of the device in the open state. The partially closed hollow profile 2 can be removed from the opened tool 3, as in FIG. 6
dargestellt, entnommen werden und eine neue Platine 15 in das frei werdende, zumindest teilweise ü-förmige Gesenk 7 der zweiten Werkzeughälfte 8 eingelegt werden. Anschließend oder davor erfolgt erneut eine Rotation der ersten Werkzeughälfte 6 um die Rotationsachse 9, so dass wieder der Stempel 4 mit der Platine 15 und das Obergesenk 5 der ersten Werkzeughälfte 6 mit der zumindest teilweise U-förmigen Platine 14 in are shown, removed and a new board 15 in the liberated, at least partially ü-shaped die 7 of the second mold half 8 are inserted. Subsequently or before, again a rotation of the first mold half 6 about the axis of rotation 9, so that again the punch 4 with the board 15 and the upper die 5 of the first mold half 6 with the at least partially U-shaped board 14 in
Eingriff stehen. Zuvor wurde auch hier in dem zumindest teilweise U-förmigen Gesenk 7 der zweiten Werkzeughälfte ein Stützkern 13 eingebracht. Engage. Previously, a support core 13 was introduced here in the at least partially U-shaped die 7 of the second mold half.
Das Ausführungsbeispiel der erfindungsgemäßen Vorrichtung nach dem nächsten Schließvorgang allerdings in geöffnetem Zustand zeigt Figur 8. Zu erkennen ist, dass die U-förmigeThe embodiment of the device according to the invention after the next closing operation, however, in the open state shows Figure 8. It can be seen that the U-shaped
Platine 14 in dem anderen, identischen U-förmigen Gesenk 7 zu einem fertigen, zumindest teilweise geschlossenes Hohlprofil 14 umgeformt wurde und entnommen werden kann. Anschließend wird das Gesenk 7 mit einer nächsten Platine 17 bestückt. Um den Produktionsvorgang fortzufahren wird die erste Board 14 in the other, identical U-shaped die 7 was converted into a finished, at least partially closed hollow section 14 and can be removed. Subsequently, the die 7 is equipped with a next board 17. To continue the production process will be the first
Werkzeughälfte 6 wiederum gegenüber der zweiten Tool half 6 again opposite the second
Werkzeughälfte 8 gedreht, so dass der U-Stempel 4 die neu eingelegte Platine 17 beim nächsten Schließvorgang zu einer zumindest teilweise U-förmigen Platine umformt, Fig. 9. Tool half 8 is rotated so that the U-punch 4, the newly inserted board 17 during the next closing process to form an at least partially U-shaped board, Fig. 9.
Aus der Beschreibung des dargestellten Ausführungsbeispiels wird deutlich, dass mit dem Ausführungsbeispiel der erfindungsgemäßen Vorrichtung mit jedem Arbeitshub ein fertig gestelltes, zumindest teilweise geschlossenes Hohlprofil hergestellt werden kann und damit die Taktzeiten zu deren Herstellung deutlich verringert werden kann. From the description of the illustrated embodiment, it is clear that with the embodiment of the Device according to the invention with each stroke a finished, at least partially closed hollow profile can be made and thus the cycle times for their production can be significantly reduced.
Um die Stückzahlen weiter zu erhöhen aber auch um weitere Bearbeitungsschritte zu integrieren, kann beispielsweise das in Figur 10 dargestellte Ausführungsbeispiel verwendet werden. In einer Vorrichtung sind hierzu zwei drehbar In order to further increase the numbers but also to integrate further processing steps, for example, the embodiment shown in Figure 10 can be used. In a device, two are rotatable for this purpose
gelagerte Montageplatten 10' vorgesehen, welche jeweils einen U-Stempel 4', ein Obergesenk 5' und Niederhalter 11' in der ersten Werkzeughälfte 6' aufweisen. Die zweite Werkzeughälfte 8 ' umfasst insgesamt vier identische zumindest teilweise U- förmige Gesenke 7', welche zur U-O-Umformung genutzt werden. Zusätzlich sind in der Vorrichtung 1' aus Figur 10 mounted mounting plates 10 'are provided, which each have a U-punch 4', an upper die 5 'and hold-down 11' in the first mold half 6 '. The second tool half 8 'comprises a total of four identical at least partially U-shaped dies 7', which are used for U-O-forming. In addition, in the device 1 'of Figure 10
Kernzugvorrichtungen 18' für jedes zumindest teilweise U- förmige Gesenk 7' der zweiten Werkzeughälfte 8' vorgesehen. Die in Figur 10 dargestellte Vorrichtung 1' zeichnet sich daher durch eine doppelt so hohe Kapazität wie die in den Figuren 1 bis 9 dargestellte Vorrichtung aus.  Kernzugvorrichtungen 18 'for each at least partially U-shaped die 7' of the second mold half 8 'is provided. The device 1 'shown in Figure 10 is therefore characterized by a twice as high capacity as the device shown in Figures 1 to 9 from.
In den Figuren 11 und 12 ist der Einfädelungsvorgang unter Verwendung der seitlich verschiebbaren Teilbereiche 20 der Seitenwände der zumindest teilweise U-förmigen Gesenke 7 bei der O-Umformung dargestellt. Das Obergesenk 5 weist In FIGS. 11 and 12, the threading process using the laterally displaceable subregions 20 of the side walls of the at least partially U-shaped dies 7 in the case of the O-forming is illustrated. The upper die 5 has
Seitenwände 19 auf, welche die verschiebbaren Teilbereiche 20 der Seitenwände des zumindest teilweise U-förmigen Gesenks 7 der zweiten Werkzeughälfte nach außen unter zu Hilfenahme der Einlaufrundungen 21 verschieben, so dass die zumindest teilweise U-förmige Platine 2 in das Obergesenk 5 besonders sicher einfädelt. Die Einlaufrundungen 21 sorgen, zusammen mit der Höhe der Seitenwände der zumindest teilweise U- förmigen Gesenke 7 dafür, dass ein besonders prozesssicherer Einfädelungsprozess gelingt, da die Rückfederung der U- förmigen geformten Platine in dem Gesenk 7 gering ist. Side walls 19, which move the displaceable portions 20 of the side walls of the at least partially U-shaped die 7 of the second tool half to the outside with the aid of Einlaufrundungen 21, so that the at least partially U-shaped board 2 threads particularly safe in the upper die 5. The inlet curves 21, together with the height of the side walls of the at least partially U- shaped dies 7 that a particularly reliable threading process succeeds because the springback of the U-shaped shaped board in the die 7 is low.
Denkbar ist aber auch, dass das nach außen Verschieben der Teilbereiche 20 der Seitenwände 19 zusätzlich aktiv It is also conceivable that the outward displacement of the subregions 20 of the side walls 19 is additionally active
unterstütz wird, um den Verschleiß an den Einlaufrundungen zu minimieren. Die Seitenwände des zumindest teilweise ei¬ förmigen Gesenks 7 weisen hierzu eine Höhe von mindestens der Hälfte der maximalen, ausgerollten Seitenwandlänge des herzustellenden Hohlprofils, also eines Schenkels des zumindest teilweisen U-Profils auf. Insgesamt kann damit ein prozesssicheres Verfahren zur Herstellung zumindest teilweise geschlossener Hohlprofile mit geringen Taktzeiten und is supported to minimize wear on the inlet curves. The side walls of the at least partially egg-shaped ¬ die 7 for this purpose have a height of at least half the maximum, the rolled side wall length of the hollow profile, that one leg of the at least partial U-profile. Overall, this can be a process-safe method for producing at least partially closed hollow sections with low cycle times and
Investitionskosten zur Verfügung gestellt werden. Investment costs are provided.

Claims

12. September 2011 Paten tan sprüche September 12, 2011 Godparents say
1. Vorrichtung (1) zur Herstellung zumindest teilweise 1. Device (1) for the production at least partially
geschlossener Hohlprofile aus einer Platine (2) durch eine U-O-Umformung mit einem Werkzeug (3) umfassend mindestens einen U-Stempel (4) und mindestens ein  closed hollow profiles of a circuit board (2) by a U-O-forming with a tool (3) comprising at least one U-punch (4) and at least one
Obergesenk (5) in einer ersten Werkzeughälfte (6), d a d u r c h g e k e n n z e i c h n e t, d a s s mindestens zwei identische, zumindest teilweise U-förmige Matrizen (7) in einer zweiten Werkzeughälfte (8)  Upper die (5) in a first mold half (6), d a d u c h e c e n e c e s, at least two identical, at least partially U-shaped dies (7) in a second mold half (8)
vorgesehen sind, der U-Stempel (4) und das Obergesenk (5) der ersten Werkzeughälfte (6) beim Schließen des  are provided, the U-punch (4) and the upper die (5) of the first mold half (6) when closing the
Werkzeugs (3) gleichzeitig mit jeweils einem zumindest teilweise U-förmigen Gesenk (7) im Eingriff stehen, der mindestens eine U-Stempel (4) und das mindestens eine Obergesenk (5) der ersten Werkzeughälfte (6) und die mindestens zwei zumindest teilweise U-förmigen Gesenke (7) der zweiten Werkzeughälfte (8) zu einer in  Tool (3) simultaneously with in each case an at least partially U-shaped die (7) are engaged, the at least one U-punch (4) and the at least one upper die (5) of the first mold half (6) and the at least two at least partially U-shaped dies (7) of the second tool half (8) to a in
Schließrichtung des Werkzeugs (3) verlaufenden  Closing direction of the tool (3) extending
Rotationsachse (9) rotationssymmetrisch angeordnet sind und die erste und die zweite Werkzeughälfte (6,8) relativ zueinander um diese Rotationsachse (9) drehbar sind, so dass durch eine Drehung der ersten und/oder der zweiten Werkzeughälfte (6,8) der U-Stempel (4) und das Obergesenk (5) jeweils mit dem ersten oder dem zweiten zumindest teilweise U-förmigen Gesenk (7) in Eingriff stehen können . Vorrichtung nach Anspruch 1, Rotation axis (9) are arranged rotationally symmetrical and the first and the second mold half (6,8) are rotatable relative to each other about this axis of rotation (9), so that by turning the first and / or the second mold half (6,8) of the U -Stempel (4) and the upper die (5) in each case with the first or the second at least partially U-shaped die (7) can be engaged. Device according to claim 1,
d a d u r c h g e k e n n z e i c h n e t, d a s s die erste oder die zweite Werkzeughälfte (6,8) d a d u r c h e k e n c i n e, the first or second mold half (6,8)
feststehend ausgebildet ist, wobei die erste oder zweite Werkzeughälfte (6,8) auf einer um die Rotationsachse drehbaren Montageplatte (10) angeordnet ist. is formed fixed, wherein the first or second mold half (6,8) is arranged on a rotatable about the rotation axis mounting plate (10).
Vorrichtung nach Anspruch 1 oder 2, Apparatus according to claim 1 or 2,
d a d u r c h g e k e n n z e i c h n e t, d a s s eine Kernzugvorrichtung (18') für jedes Gesenk (7') der zweiten Werkzeughälfte (8,8') vorgesehen ist. That is, a core pulling device (18 ') is provided for each die (7') of the second die half (8, 8 ').
Vorrichtung nach einem der Ansprüche 1 bis 3, Device according to one of claims 1 to 3,
d a d u r c h g e k e n n z e i c h n e t, d a s s dem U-Stempel (4) in der ersten Werkzeughälfte (6) d a d u r c h e k e n c i n e s, e s the U-punch (4) in the first tool half (6)
Niederhalter (11) zugeordnet sind. Downholder (11) are assigned.
Vorrichtung nach einem der Ansprüche 1 bis 4, Device according to one of claims 1 to 4,
d a d u r c h g e k e n n z e i c h n e t, d a s s die zumindest teilweise U-förmigen Gesenke (7,7') der zweiten Werkzeughälfte (8,8') Seitenwände aufweisen, deren Höhe mindestens die Hälfte der maximalen, The at least partially U-shaped dies (7, 7 ') of the second tool half (8, 8') have side walls whose height is at least half of the maximum,
ausgerollten Seitenwandlänge des herzustellenden rolled sidewall length of the produced
Hohlprofils beträgt. Hollow profile amounts.
Vorrichtung nach einem der Ansprüche 1 bis 5, Device according to one of claims 1 to 5,
d a d u r c h g e k e n n z e i c h n e t, d a s s die Seitenwände der zumindest teilweise ü-förmigen Gesenke (7,7') zumindest in Teilbereichen (20) nach außen d a d u r c h e g e e n e, e e s, the side walls of the at least partially U-shaped dies (7,7 ') at least in partial areas (20) to the outside
verschiebbar sind und diese Teilbereiche (20) are displaceable and these subregions (20)
Einlaufrundungen (21) aufweisen. Vorrichtung nach einem der Ansprüche 1 bis 6, Einlaufrundungen (21) have. Device according to one of claims 1 to 6,
d a d u r c h g e k e n n z e i c h n e t, d a s s die erste Werkzeughälfte (6') eine Mehrzahl an paarweise und rotationssymmetrisch zu jeweils einer Rotationsachse angeordnete U-Stempel (4') und Obergesenke (5') aufweist und die zweite Werkzeughälfte (8') eine identische Anzahl rotationssymmetrisch zu den jeweiligen Rotationsachsen angeordnete, zumindest teilweise U-förmige Gesenke (7') aufweist . characterized in that the first mold half (6 ') has a plurality of pairs and rotationally symmetrical to each axis of rotation arranged U-punch (4') and upper dies (5 ') and the second mold half (8') an identical number rotationally symmetrical to the respective Having rotational axes arranged, at least partially U-shaped dies (7 ').
Verfahren zur Herstellung eines zumindest teilweise geschlossenen Hohlprofils unter Verwendung einer Method for producing an at least partially closed hollow profile using a
Vorrichtung gemäß einem der Ansprüche 1 bis 7, mit folgenden Schritten: Device according to one of claims 1 to 7, comprising the following steps:
- Einlegen einer ersten ebenen Platine in ein erstes zumindest teilweise U-förmiges Gesenk der zweiten - Inserting a first planar board in a first at least partially U-shaped die of the second
Werkzeughälfte, Tool half,
- Umformen der ersten Platine zu einer zumindest - Forming the first board at least one
teilweise U-förmigen Platine durch Schließen der partially U-shaped board by closing the
Werkzeughälften unter Verwendung des U-Stempels der ersten Werkzeughälfte, Tool halves using the U-punch of the first tool half,
- Öffnen des Werkzeugs und Drehung der ersten und zweiten Werkzeughälfte gegeneinander um eine in Schließrichtung des Werkzeugs verlaufende Rotationsachse, so dass der U- Stempel der ersten Werkzeughälfte über dem zweiten zumindest teilweise U-förmigen Gesenk der zweiten - Opening the tool and rotation of the first and second tool half against each other about an axis of rotation extending in the closing direction of the tool, so that the U-punch of the first mold half over the second at least partially U-shaped die of the second
Werkzeughälfte und das Obergesenk der ersten Tool half and the upper die of the first
Werkzeughälfte über dem ersten zumindest teilweise U- - 4 _ Tool half above the first at least partially U - 4 _
2012/034967 PCT/EP2011/065726 förmigen Gesenk der zweiten Werkzeughälfte positioniert ist , 2012/034967 PCT / EP2011 / 065726 is positioned shaped die of the second tool half,
- Einlegen einer zweiten ebenen Platine in dem zweiten zumindest teilweise U-förmigen Gesenk der zweiten - Inserting a second planar board in the second at least partially U-shaped die of the second
Werkzeughälfte , Tool half,
- Schließen der Werkzeughälften und gleichzeitiges - Close the tool halves and simultaneous
Umformen der teilweise U-förmigen ersten Platine zu einem zumindest teilweise geschlossenen Hohlprofil unter Forming the partially U-shaped first board to an at least partially closed hollow profile below
Verwendung des Obergesenks der ersten Werkzeughälfte und gleichzeitiges Umformen der zweiten Platine zu einer teilweise U-förmigen Platine unter Verwendung des U- Stempels der ersten Werkzeughälfte. Using the top die of the first die half and simultaneously forming the second die into a partially U-shaped die using the U die of the first die half.
Verfahren nach Anspruch 8, Method according to claim 8,
d a d u r c h g e k e n n z e i c h n e t, d a s s die erste und/oder die zweite Werkzeughälfte nach dem Öffnen des Werkzeugs um die Rotationsachse gedreht wird. The first and / or the second tool half is rotated about the axis of rotation after the tool has been opened.
Verfahren nach Anspruch 8 oder 9, Method according to claim 8 or 9,
d a d u r c h g e k e n n z e i c h n e t, d a s s vor dem Umformen einer zumindest teilweise U-förmigen Platine zu einem zumindest teilweise geschlossenen Profil unter Verwendung einer Kernzugvorrichtung ein Stützkern in der jeweiligen zumindest teilweise U-förmigen Platine in der zweiten Werkzeughälfte positioniert wird. That is, prior to forming an at least partially U-shaped board into an at least partially closed profile using a core puller, a support core is positioned in the respective at least partially U-shaped board in the second tool half.
Verfahren nach einem der Ansprüche 8 bis 10, Method according to one of claims 8 to 10,
d a d u r c h g e k e n n z e i c h n e t, d a s s die zumindest teilweise U-förmigen Gesenke seitlich verschiebbare Teilbereiche der Seitenwände aufweisen und beim Schließen der Werkzeughälften die Seitenwände des Obergesenks der ersten Werkzeughälfte die verschiebbaren Teilbereiche der Seitenwände der zumindest teilweise U- förmigen Gesenke der zweiten Werkzeughälfte nach außen verschieben . characterized in that the at least partially U-shaped dies have laterally displaceable portions of the side walls and when closing the mold halves, the side walls of the upper die of the first mold half displace the displaceable portions of the side walls of the at least partially U-shaped dies of the second mold half to the outside.
Verfahren nach einem der Ansprüche 8 bis 11, Method according to one of claims 8 to 11,
d a d u r c h g e k e n n z e i c h n e t, d a s s weitere Bearbeitungsschritte in der Vorrichtung d a d u r c h e k e n c i n e, there are further processing steps in the apparatus
durchgeführt werden. be performed.
EP11755339.6A 2010-09-14 2011-09-12 Device and method for producing at least partially closed hollow profiles with rotatable die halves and low cycle time Not-in-force EP2616197B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010037534A DE102010037534A1 (en) 2010-09-14 2010-09-14 Apparatus and method for producing at least partially closed hollow profiles with rotatable die halves and low cycle time
PCT/EP2011/065726 WO2012034967A1 (en) 2010-09-14 2011-09-12 Device and method for producing at least partially closed hollow profiles with rotatable die halves and low cycle time

Publications (2)

Publication Number Publication Date
EP2616197A1 true EP2616197A1 (en) 2013-07-24
EP2616197B1 EP2616197B1 (en) 2014-03-12

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US (1) US9993860B2 (en)
EP (1) EP2616197B1 (en)
JP (1) JP5530036B2 (en)
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DE (1) DE102010037534A1 (en)
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US9993860B2 (en) 2018-06-12
DE102010037534A1 (en) 2012-03-15
WO2012034967A1 (en) 2012-03-22
EP2616197B1 (en) 2014-03-12
JP5530036B2 (en) 2014-06-25
KR20130100287A (en) 2013-09-10
KR101690707B1 (en) 2016-12-28
JP2013537112A (en) 2013-09-30
CN103153498A (en) 2013-06-12
ES2471090T3 (en) 2014-06-25
US20130186165A1 (en) 2013-07-25

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