EP3224007B1 - Holding device for fastening polymeric motor-vehicle bumpers - Google Patents

Holding device for fastening polymeric motor-vehicle bumpers Download PDF

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Publication number
EP3224007B1
EP3224007B1 EP15774857.5A EP15774857A EP3224007B1 EP 3224007 B1 EP3224007 B1 EP 3224007B1 EP 15774857 A EP15774857 A EP 15774857A EP 3224007 B1 EP3224007 B1 EP 3224007B1
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EP
European Patent Office
Prior art keywords
fixing
bumper
holding device
arms
model
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.)
Active
Application number
EP15774857.5A
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German (de)
French (fr)
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EP3224007A1 (en
Inventor
Ralph Schwarz
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.)
Rehau Automotive SE and Co KG
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Rehau AG and Co
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Publication date
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Publication of EP3224007A1 publication Critical patent/EP3224007A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/018—Holding the work by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • B26D7/04—Means for holding or positioning work with clamping means providing adjustable clamping pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02—Means for moving the cutting member into its operative position for cutting
    • B26D5/06—Means for moving the cutting member into its operative position for cutting by electrical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out

Definitions

  • Such a recording device is from DE 10 2009 019 644 A1 known.
  • Such receiving devices are required, for example, to fix a motor vehicle bumper for the purpose of making recesses for parking sensors, spacers or the like in a punching machine.
  • the receiving devices known in the prior art are adapted in terms of their geometry to a single bumper series model of a specific motor vehicle series. Therefore, it is not possible to fix different car bumper models in one and the same receiving device.
  • This is particularly disadvantageous in the production of bumpers for the spare parts service, since a separate punching machine with a receiving device specially adapted to this bumper model has to be kept for each bumper model, despite only a small number of pieces.
  • the disadvantageous consequence is, on the one hand, a high capital commitment and, on the other hand, a very large space requirement.
  • the invention is based on the object of specifying a receiving device with the features described in the introduction, which can be flexibly adapted to different motor vehicle bumper models.
  • the object is achieved by the features of claim 1.
  • several, preferably four independently movable fixing arms are provided in a fixing arm group in order to create flexibility with regard to the optional fixing of four different motor vehicle bumper models.
  • fixing a special bumper model only that fixing arm of the fixing arm group is used, the contact contour of which is adapted to the local shape of this specific, special bumper model.
  • the other fixing arms are still in the basic position while this bumper model is being fixed and are not required for fixing this specific bumper model.
  • the fixing device expediently comprises several, preferably three fixing arm groups, by means of which the bumpers can be fixed at several points spaced apart from one another on the base frame.
  • three fixing arm groups are provided which fix the corresponding motor vehicle bumper model in all three spatial directions.
  • the fixing arms matching the previous bumper model are first transferred back to the basic position and then the fixing arms adapted to the subsequent bumper model are transferred to the working position.
  • the number of fixing arms per fixing arm group a corresponding number of different bumper models can thus be fixed on one and the same receiving device.
  • the fixing arms are pivotably connected to the base frame, for example each via a ball bearing.
  • each fixing arm is separate from a, preferably essentially vertical, basic position into a, preferably essentially, basic position horizontal, fixing working position can be transferred.
  • the pivoting movement can take place via a toothed pinion arranged on the fixing arm, which is connected to a pneumatic drive by means of a toothed rack.
  • the fixing device additionally has at least two side fixing units, each with at least two side fixing elements, which are used for the model-adapted fixing of the side surfaces of the bumper.
  • the arrangement principle can be analogous to the fixing arm group with the fixing arms, i.e. a contour-adapted side fixing element is provided for each specific vehicle bumper model per side fixing unit, which is only used for the lateral fixing of the corresponding bumper model .
  • the fixing arms each have at least one vacuum fixing element in the area of the contact contour, which is connected to a, preferably central, vacuum system.
  • the motor vehicle bumper can be securely fixed in the contact area of the fixing arm by means of negative pressure, so that precise machining is possible.
  • the fixing arms are expediently arranged on the base frame so that they can be dismantled, so that they can be exchanged for the purpose of adapting the receiving device to different bumper models.
  • a large kit of fixing arms can thus be kept available in order to adapt the receiving device to almost any number of different bumper models.
  • this has the advantage that a large number of the most varied of motor vehicle bumper models can be processed with a single receiving device.
  • the invention also relates to a machine, in particular a punching machine, with at least one receiving device according to the invention.
  • the Fig. 1 shows a punching machine 100 for processing polymeric motor vehicle bumpers.
  • This punching machine 100 has a receiving device for fixing the motor vehicle bumpers 1 in place.
  • the receiving device has a base frame 2 and a fixing device 3 for fixing the bumper 1 on the base frame 2.
  • the shape of the fixing device 3 is specially tailored to the specific motor vehicle bumper model 1.
  • the Fig. 2 shows a receiving device according to the invention for the fixation of polymeric motor vehicle bumpers 1 during a punching process.
  • the receiving device has an in Fig. 2 Base frame 2, not shown in more detail, and a fixing device 3 for fixing the bumper 1 on the base frame 2.
  • the receiving device according to the invention is part of a machine for processing the polymeric motor vehicle bumpers. This machine can be a pure punching machine or else a machine by means of which several different processing steps can be carried out on the bumpers 1.
  • the fixing device has three fixing arm groups 4, 5, 6 each with four independently movable fixing arms 7, 8, 9, 10 for different bumper models.
  • the fixing arms 7, 8, 9, 10 have different contact contours 7 ', 8', 9 ', 10' in the fixing position on the corresponding motor vehicle bumper 1, the contact contour 7 ', 8', 9 ', 10' the fixing arms 7, 8, 9, 10 are each adapted to the local shape of a special bumper model 1. This is particularly evident from the top view in FIG Fig. 3 recognizable.
  • the other fixing arms 8, 9, 10, however, are in the vertical basic position during the fixing of this bumper 1. If, however, the task is to fix a bumper model 1, to the contour of which the contact contours 8 'of the respective second fixing arms from the left 8 are adapted, only these fixing arms 8 are transferred into the horizontal working position accordingly to fix this bumper model 1, where, however, the other fixing arms 7, 9, 10 remain in the basic position, etc.
  • the fixing arms 7, 8, 9, 10 in the area of the contact contour 7 ', 8', 9 ', 10' each have a plurality of vacuum fixing elements 19 spaced apart from one another. All negative pressure fixing elements 19 are connected to a central (not shown) vacuum system.
  • the fixing arms 7, 8, 9, 10, which are adapted to precisely this model with their contact contour 7 ', 8', 9 ', 10' are first moved into the horizontal working position transferred, the bumper 1 is then placed on these fixing arms 7, 8, 9, 10 and then fixed by means of the negative pressure generated by the vacuum system.
  • the bumper 1 is pressed against the contact contours 7 ', 8', 9 ', 10' of these fixing arms 7, 8, 9, 10, which are adapted to it.
  • the side surfaces 50 (ears) of the bumper 1 are then fixed by means of the correspondingly adapted side fixing elements 13, 14, 15, 16. In this securely and precisely fixed state of the bumper 1, very precise machining, in particular punching, is possible.
  • the fixing arms 7, 8, 9, 10 are arranged on the base frame 2 such that they can be dismantled so that they can be exchanged for the purpose of adapting the receiving device to a wide variety of bumper models 1.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Description

Die Erfindung betrifft eine Aufnahmevorrichtung für die Fixierung polymerer Kfz-Stoßfänger während eines Bearbeitungsvorgangs, insbesondere eines Stanzvorgangs, mit

  • einem Grundgestell und
  • einer Fixiervorrichtung zur Fixierung des Stoßfängers auf dem Grundgestell.
The invention relates to a receiving device for fixing polymeric motor vehicle bumpers during a machining process, in particular a punching process
  • a base frame and
  • a fixing device for fixing the bumper on the base frame.

Eine derartige Aufnahmevorrichtung ist aus der DE 10 2009 019 644 A1 bekannt. Solche Aufnahmevorrichtungen werden beispielsweise dazu benötigt, um einen Kfz-Stoßfänger zwecks Einbringung von Ausnehmungen für Parksensoren, Abstandshalter oder dergleichen in einer Stanzmaschine zu fixieren. Die im Stand der Technik bekannten Aufnahmevorrichtungen sind hinsichtlich ihrer Geometrie an ein einzelnes Stoßfänger-Serienmodell einer konkreten Kraftfahrzeugserie angepasst. Daher ist es nicht möglich, verschiedene Kfz-Stoßfänger-Modelle in ein und derselben Aufnahmevorrichtung zu fixieren. Dies ist insbesondere bei der Herstellung von Stoßfängern für den Ersatzteildienst nachteilig, da trotz lediglich geringer Stückzahl für jedes Stoßfänger-Modell eine separate Stanzmaschine mit speziell an dieses Stoßfänger-Modell angepasster Aufnahmevorrichtung vorgehalten werden muss. Die nachteilige Folge ist einerseits eine hohe Kapitalbindung und andererseits einen sehr großen Platzbedarf.Such a recording device is from DE 10 2009 019 644 A1 known. Such receiving devices are required, for example, to fix a motor vehicle bumper for the purpose of making recesses for parking sensors, spacers or the like in a punching machine. The receiving devices known in the prior art are adapted in terms of their geometry to a single bumper series model of a specific motor vehicle series. Therefore, it is not possible to fix different car bumper models in one and the same receiving device. This is particularly disadvantageous in the production of bumpers for the spare parts service, since a separate punching machine with a receiving device specially adapted to this bumper model has to be kept for each bumper model, despite only a small number of pieces. The disadvantageous consequence is, on the one hand, a high capital commitment and, on the other hand, a very large space requirement.

Um den Stanzvorgang selbst zu flexibilisieren, ist es aus der WO 2014/169999 A1 bekannt, Stanzwerkzeuge auf einem beweglichen und austauschbaren Träger zu montieren, wodurch eine variable Bearbeitung unterschiedlicher Stoßfänger-Modelle auf ein und derselben Stanzmaschine ermöglicht wird.To make the punching process itself more flexible, it is from the WO 2014/169999 A1 known to mount punching tools on a movable and exchangeable carrier, whereby a variable processing of different bumper models is made possible on one and the same punching machine.

Vor dem beschriebenen Hintergrund liegt der Erfindung die Aufgabe zugrunde, eine Aufnahmevorrichtung mit den eingangs beschriebenen Merkmalen anzugeben, welche flexibel auf unterschiedliche Kfz-Stoßfänger-Modelle angepasst werden kann.Against the background described, the invention is based on the object of specifying a receiving device with the features described in the introduction, which can be flexibly adapted to different motor vehicle bumper models.

Erfindungsgemäß wird die Aufgabe durch die Merkmale des Patentanspruchs 1 gelöst. Erfindungsgemäß werden also mehrere, vorzugsweise vier unabhängig voneinander bewegliche Fixierarme in einer Fixierarm-Gruppe vorgesehen, um eine Flexibilität hinsichtlich der wahlweisen Fixierung von vier verschiedenen Kfz-Stoßfänger-Modellen zu schaffen. Bei der Fixierung eines speziellen Stoßfänger-Modells kommt nur derjenige Fixierarm der Fixierarm-Gruppe zum Einsatz, dessen Anlagekontur an die lokale Gestalt dieses konkreten, speziellen Stoßfänger-Modells angepasst ist. Die anderen Fixierarme hingegen befinden sich während der Fixierung dieses Stoßfänger-Modells weiterhin in der Grundstellung und werden für die Fixierung dieses konkreten Stoßfänger-Modells nicht benötigt. Durch die Auswahl des passenden beweglichen Fixierarmes ist es somit möglich, unterschiedliche Kfz-Stoßfänger-Modelle in ein und derselben Aufnahmevorrichtung zu fixieren. Dies ist insbesondere dann von Vorteil, wenn die Aufnahmevorrichtung zur Herstellung unterschiedlicher Kfz-Stoßfänger-Modelle im Ersatzteildienst eingesetzt wird.According to the invention, the object is achieved by the features of claim 1. According to the invention, several, preferably four independently movable fixing arms are provided in a fixing arm group in order to create flexibility with regard to the optional fixing of four different motor vehicle bumper models. When fixing a special bumper model, only that fixing arm of the fixing arm group is used, the contact contour of which is adapted to the local shape of this specific, special bumper model. The other fixing arms, on the other hand, are still in the basic position while this bumper model is being fixed and are not required for fixing this specific bumper model. By selecting the appropriate movable fixing arm, it is thus possible to fix different car bumper models in one and the same mounting device. This is particularly advantageous when the receiving device is used in the spare parts service to manufacture different motor vehicle bumper models.

Zweckmäßigerweise umfasst die Fixiervorrichtung mehrere, vorzugsweise drei Fixierarm-Gruppen, mittels derer die Stoßfänger an mehreren voneinander beabstandeten Punkten auf dem Grundgestellt fixierbar sind. Zweckmäßigerweise sind drei Fixierarm-Gruppen vorgesehen, welche das entsprechende Kfz-Stoßfänger-Modell in allen drei Raumrichtungen fixieren. Bei der Fixierung eines konkreten Kfz-Stoßfänger-Modells wird dann entsprechend von jeder Fixierarm-Gruppe nur derjenige Fixierarm in die Arbeitsstellung überführt, dessen Anlagekontur speziell an die lokale Gestalt genau dieses Stoßfänger-Modells angepasst ist. Somit kann durch die Überführung der genau an das konkrete Stoßfänger-Modells angepassten Fixierarme von der Grundstellung in die Arbeitsstellung eine sichere Fixierung dieses Stoßfängers erfolgen. Falls in einem nächsten Arbeitsschritt ein anderes Stoßfänger-Modell fixiert werden soll, werden zunächst die zu dem vorigen Stoßfänger-Modell passenden Fixierarme wieder in die Grundstellung und sodann die an das nachfolgende Stoßfänger-Modell angepassten Fixierarme in die Arbeitsstellung überführt. Je nach Anzahl der Fixierarme pro Fixierarm-Gruppe kann somit eine entsprechende Anzahl unterschiedlicher Stoßfänger-Modelle auf ein und derselben Aufnahmevorrichtung fixiert werden.The fixing device expediently comprises several, preferably three fixing arm groups, by means of which the bumpers can be fixed at several points spaced apart from one another on the base frame. Appropriately, three fixing arm groups are provided which fix the corresponding motor vehicle bumper model in all three spatial directions. When fixing a specific motor vehicle bumper model, only that fixing arm is moved into the working position from each fixing arm group whose contact contour is specially adapted to the local shape of precisely this bumper model. Thus, by transferring the fixing arms, which are precisely matched to the specific bumper model, from the basic position to the working position, this bumper can be securely fixed. If another bumper model is to be fixed in the next work step, the fixing arms matching the previous bumper model are first transferred back to the basic position and then the fixing arms adapted to the subsequent bumper model are transferred to the working position. Depending on the number of fixing arms per fixing arm group, a corresponding number of different bumper models can thus be fixed on one and the same receiving device.

Gemäß einer bevorzugten Ausführungsform der Erfindung sind die Fixierarme mit dem Grundgestell schwenkbeweglich verbunden, z.B. jeweils über ein Kugellager. Zweckmäßigerweise ist mittels einer Schwenkbewegung jeder Fixierarm separat von einer, vorzugsweise im wesentlichen senkrechten, Grundstellung in eine, vorzugsweise im wesentlichen waagrechte, fixierende Arbeitsstellung überführbar. Die Schwenkbewegung kann hierbei jeweils über ein am Fixierarm angeordnetes Zahnritzel erfolgen, das mittels einer Zahnstange an einen Pneumatikantrieb angeschlossen ist.According to a preferred embodiment of the invention, the fixing arms are pivotably connected to the base frame, for example each via a ball bearing. Appropriately, by means of a pivoting movement, each fixing arm is separate from a, preferably essentially vertical, basic position into a, preferably essentially, basic position horizontal, fixing working position can be transferred. The pivoting movement can take place via a toothed pinion arranged on the fixing arm, which is connected to a pneumatic drive by means of a toothed rack.

Gemäß einer bevorzugten Ausführungsform der Erfindung weist die Fixiervorrichtung zusätzlich mindestens zwei Seitenfixier-Einheiten mit jeweils mindestens zwei Seitenfixier-Elementen auf, die zur modellangepassten Fixierung der Seitenflächen des Stoßfängers dienen. Hierüber ist es möglich, die Seitenflächen (Ohren) des Stoßfängers während des Bearbeitungsvorgangs, vorzugsweise Stanzvorgangs, ebenfalls sicher zu arretieren. Das Anordnungsprinzip kann hierbei analog zur Fixierarm-Gruppe mit den Fixierarmen erfolgen, d.h. zweckmäßigerweise ist für jedes konkrete Kfz-Stoßfänger-Modell pro Seitenfixier-Einheit ein konturangepasstes Seitenfixier-Element vorgesehen, das nur bei der seitlichen Fixierung des entsprechenden Stoßfänger-Modells zum Einsatz kommt.According to a preferred embodiment of the invention, the fixing device additionally has at least two side fixing units, each with at least two side fixing elements, which are used for the model-adapted fixing of the side surfaces of the bumper. This makes it possible to also lock the side surfaces (ears) of the bumper securely during the machining process, preferably the punching process. The arrangement principle can be analogous to the fixing arm group with the fixing arms, i.e. a contour-adapted side fixing element is provided for each specific vehicle bumper model per side fixing unit, which is only used for the lateral fixing of the corresponding bumper model .

Erfindungsgemäß weisen die Fixierarme im Bereich der Anlagekontur jeweils mindestens ein Unterdruck-Fixierelement auf, das an ein, vorzugsweise zentrales, Vakuumsystem angeschlossen ist. Auf diese Weise kann der Kfz-Stoßfänger im Anlagebereich des Fixierarmes mittels Unterdruck sicher fixiert werden, so dass eine exakte Bearbeitung möglich ist.According to the invention, the fixing arms each have at least one vacuum fixing element in the area of the contact contour, which is connected to a, preferably central, vacuum system. In this way, the motor vehicle bumper can be securely fixed in the contact area of the fixing arm by means of negative pressure, so that precise machining is possible.

Um größtmögliche Flexibilität zu gewährleisten, sind die Fixierarme zweckmäßigerweise demontierbar am Grundgestell angeordnet, so dass diese zwecks Anpassung der Aufnahmevorrichtung an unterschiedliche Stoßfänger-Modelle austauschbar sind. Es kann somit ein großer Bausatz an Fixierarmen vorgehalten werden, um die Aufnahmevorrichtung an nahezu beliebig viele unterschiedliche Stoßfänger-Modelle anzupassen. Insbesondere im Rahmen des Ersatzteildienstes ergibt sich hieraus der Vorteil, dass mit einer einzigen Aufnahmevorrichtung eine große Anzahl unterschiedlichster Kfz-Stoßfänger-Modelle bearbeitet werden kann.To ensure the greatest possible flexibility, the fixing arms are expediently arranged on the base frame so that they can be dismantled, so that they can be exchanged for the purpose of adapting the receiving device to different bumper models. A large kit of fixing arms can thus be kept available in order to adapt the receiving device to almost any number of different bumper models. In particular in the context of the spare parts service, this has the advantage that a large number of the most varied of motor vehicle bumper models can be processed with a single receiving device.

Gegenstand der Erfindung ist auch eine Maschine, insbesondere Stanzmaschine, mit mindestens einer erfindungsgemäßen Aufnahmevorrichtung.The invention also relates to a machine, in particular a punching machine, with at least one receiving device according to the invention.

Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlich erläutert. Es zeigen schematisch:

Fig. 1
eine Stanzmaschine zur Bearbeitung eines polymeren Kfz-Stoßfängers gemäß dem Stand der Technik,
Fig. 2
eine erfindungsgemäße Aufnahmevorrichtung in einer Seitenansicht,
Fig. 3
die in Fig. 2 dargestellte Aufnahmevorrichtung in der Draufsicht Z;
Fig. 4a
die Ansicht X in Fig. 2 und
Fig. 4b
den Schnitt A-A in Fig. 2.
In the following, the invention is explained in detail with reference to a drawing showing only one embodiment. They show schematically:
Fig. 1
a punching machine for processing a polymer motor vehicle bumper according to the prior art,
Fig. 2
a receiving device according to the invention in a side view,
Fig. 3
in the Fig. 2 shown receiving device in plan view Z;
Figure 4a
the view X in Fig. 2 and
Figure 4b
the section AA in Fig. 2 .

Die Fig. 1 zeigt eine Stanzmaschine 100 zur Bearbeitung polymerer Kfz-Stoßfänger. Diese Stanzmaschine 100 weist eine Aufnahmevorrichtung für die Fixierung der Kfz-Stoßfänger 1 auf. Die Aufnahmevorrichtung verfügt über ein Grundgestell 2 und eine Fixiervorrichtung 3 zur Fixierung des Stoßfängers 1 auf dem Grundgestell 2 . Die Gestalt der Fixiervorrichtung 3 ist speziell auf das konkrete Kfz-Stoßfänger-Modell 1 abgestimmt.The Fig. 1 shows a punching machine 100 for processing polymeric motor vehicle bumpers. This punching machine 100 has a receiving device for fixing the motor vehicle bumpers 1 in place. The receiving device has a base frame 2 and a fixing device 3 for fixing the bumper 1 on the base frame 2. The shape of the fixing device 3 is specially tailored to the specific motor vehicle bumper model 1.

Die Fig. 2 zeigt eine erfindungsgemäße Aufnahmevorrichtung für die Fixierung polymerer Kfz-Stoßfänger 1 während eines Stanzvorgangs. Die Aufnahmevorrichtung weist ein in Fig. 2 nicht näher dargestelltes Grundgestell 2 sowie eine Fixiervorrichtung 3 zur Fixierung des Stoßfängers 1 auf dem Grundgestell 2 auf. Die erfindungsgemäße Aufnahmevorrichtung ist Bestandteil einer Maschine zur Bearbeitung der polymeren Kfz-Stoßfänger. Bei dieser Maschine kann es sich um eine reine Stanzmaschine oder aber auch um eine Maschine handeln, mittels derer mehrere verschiedene Bearbeitungsschritte an den Stoßfängern 1 vorgenommen werden können. Der Fig. 2 ist zu entnehmen, dass die Fixiervorrichtung drei Fixierarm-Gruppen 4, 5, 6 mit jeweils vier unabhängig voneinander beweglichen Fixierarmen 7, 8, 9, 10 für unterschiedliche Stoßfänger-Modelle aufweist. Die Fixierarme 7, 8, 9, 10 weisen unterschiedliche, in Fixierstellung an dem entsprechenden Kfz-Stoßfänger 1 anliegende Anlagekonturen 7', 8', 9', 10' auf, wobei die Anlagekontur 7', 8', 9', 10' der Fixierarme 7, 8, 9, 10 jeweils an die lokale Gestalt eines speziellen Stoßfänger-Modells 1 angepasst ist. Dies ist insbesondere anhand der Draufsicht in Fig. 3 erkennbar.The Fig. 2 shows a receiving device according to the invention for the fixation of polymeric motor vehicle bumpers 1 during a punching process. The receiving device has an in Fig. 2 Base frame 2, not shown in more detail, and a fixing device 3 for fixing the bumper 1 on the base frame 2. The receiving device according to the invention is part of a machine for processing the polymeric motor vehicle bumpers. This machine can be a pure punching machine or else a machine by means of which several different processing steps can be carried out on the bumpers 1. Of the Fig. 2 it can be seen that the fixing device has three fixing arm groups 4, 5, 6 each with four independently movable fixing arms 7, 8, 9, 10 for different bumper models. The fixing arms 7, 8, 9, 10 have different contact contours 7 ', 8', 9 ', 10' in the fixing position on the corresponding motor vehicle bumper 1, the contact contour 7 ', 8', 9 ', 10' the fixing arms 7, 8, 9, 10 are each adapted to the local shape of a special bumper model 1. This is particularly evident from the top view in FIG Fig. 3 recognizable.

In den Figuren 2 und 3 befinden sich alle Fixierarme 7, 8, 9, 10 in einer waagerechten, fixierenden Arbeitsstellung. Bei der Fixierung eines konkreten Kfz-Stoßfänger-Modells 1 wird jedoch pro Fixierarm-Gruppe 4, 5, 6 jeweils nur ein, nämlich der mit seiner Anlagekontur genau an dieses Kfz-Stoßfänger-Modell angepasste Fixierarm von der Grundstellung in die Arbeitsstellung überführt, während die drei anderen Fixierarme jeweils in ihrer senkrechten Grundstellung verbleiben. Die Fixierarme 7, 8, 9, 10 sind mit dem Grundgestell 2 schwenkbeweglich verbunden, um diese jeweils von der Grundstellung in die Arbeitsstellung überführen zu können. Für die Fixierung eines bestimmten Stoßfänger-Modells 1 werden beispielsweise die in der Fig. 3 jeweils links dargestellten Fixierarme 7 mit ihren entsprechend angepassten Anlagekonturen 7' in die waagerechte Arbeitsstellung überführt, um den konkreten Stoßfänger 1 zu fixieren. Die anderen Fixierarme 8, 9, 10 hingegen befinden sich während der Fixierung dieses Stoßfängers 1 in der senkrechten Grundstellung. Sofern jedoch die Aufgabe besteht, ein Stoßfänger-Modell 1 zu fixieren, an dessen Kontur die Anlagekonturen 8' der jeweils zweiten Fixierarme von links 8 angepasst sind, werden entsprechend zur Fixierung dieses Stoßfänger-Modells 1 nur diese Fixierarme 8 in die waagrechte Arbeitsstellung überführt, wo hingegen die anderen Fixierarme 7, 9, 10 in der Grundstellung verbleiben usw. Zusätzlich befindet sich an den beiden Enden der Fixiervorrichtung 3 jeweils eine Seitenfixier-Einheit 11, 12 mit jeweils vier Seitenfixier-Elementen 13, 14, 15, 16, die eine modellangepasste Fixierung der Seitenflächen 50 (Ohren) des Stoßfängers 1 (s. Fig. 1) ermöglichen. Auch hier wird jeweils nur dasjenige Seitenfixier-Element zum Einsatz gebracht, dessen Kontur genau an das konkret zu fixierende Stoßfänger-Modell 1 angepasst ist.In the Figures 2 and 3 all fixing arms 7, 8, 9, 10 are in a horizontal, fixing working position. However, when fixing a specific vehicle bumper model 1 only one per fixation arm group 4, 5, 6, namely the fixation arm with its contact contour precisely adapted to this vehicle bumper model is transferred from the basic position to the working position, while the three other fixation arms each remain in their vertical basic position. The fixing arms 7, 8, 9, 10 are pivotally connected to the base frame 2 in order to be able to transfer them from the basic position to the working position. For the fixation of a specific bumper model 1, for example, those in the Fig. 3 Fixing arms 7 shown on the left with their correspondingly adapted contact contours 7 'are transferred into the horizontal working position in order to fix the specific bumper 1. The other fixing arms 8, 9, 10, however, are in the vertical basic position during the fixing of this bumper 1. If, however, the task is to fix a bumper model 1, to the contour of which the contact contours 8 'of the respective second fixing arms from the left 8 are adapted, only these fixing arms 8 are transferred into the horizontal working position accordingly to fix this bumper model 1, where, however, the other fixing arms 7, 9, 10 remain in the basic position, etc. In addition, there is a side fixing unit 11, 12 each with four side fixing elements 13, 14, 15, 16, the one at the two ends of the fixing device 3 Model-adapted fixation of the side surfaces 50 (ears) of the bumper 1 (s. Fig. 1 ) enable. Here, too, only that side fixing element is used, the contour of which is precisely adapted to the bumper model 1 to be specifically fixed.

Einer vergleichenden Betrachtung der Figuren 2 und 3 ist ferner zu entnehmen, dass die Schwenkbewegung der Fixierarme 7, 8, 9, 10 jeweils über ein am Fixierarm 7, 8, 9, 10 angeordnetes Zahnritzel 17 erfolgt, das mittels einer Zahnstange 18 an einen nicht näher dargestellten Pneumatikantrieb angeschlossen ist. In diesem Zusammenhang wird auf die Seitenansicht gemäß Fig. 4a bzw. den Schnitt A-A in Fig. 2 gemäß Fig. 4b verwiesen. Sofern die Zahnstange 18 jeweils nach oben verfahren wird, erfolgt hierdurch in Fig. 4a,b eine Rechtsdrehung des Zahnritzels 17 und damit eine Schwenkbewegung des jeweiligen Fixierarmes 7, 8, 9, 10 in die waagerechte Arbeitsstellung. Wird hingegen die Zahnstange 18 durch den Pneumatikantrieb nach unten bewegt, so hat dies eine Linksdrehung des Zahnritzels 17 zur Folge und der jeweilige Fixierarm 7, 8, 9, 10 vollzieht hierdurch eine Schwenkbewegung in die senkrechte Grundstellung.A comparative consideration of the Figures 2 and 3 it can also be seen that the pivoting movement of the fixing arms 7, 8, 9, 10 takes place via a pinion 17 on the fixing arm 7, 8, 9, 10, which is connected to a pneumatic drive (not shown) by means of a rack 18. In this context, the side view according to Figure 4a or the section AA in Fig. 2 according to Figure 4b referenced. If the rack 18 is moved upwards, this takes place in Figures 4a, b a clockwise rotation of the pinion 17 and thus a pivoting movement of the respective fixing arm 7, 8, 9, 10 into the horizontal working position. If, on the other hand, the toothed rack 18 is moved downwards by the pneumatic drive, this results in a left-hand rotation of the toothed pinion 17 and the respective fixing arm 7, 8, 9, 10 thereby swivels into the vertical basic position.

Insbesondere der Fig. 3 ist zu entnehmen, dass die Fixierarme 7, 8, 9, 10 im Bereich der Anlagekontur 7', 8', 9', 10' jeweils mehrere voneinander beabstandete Unterdruck-Fixierelemente 19 aufweisen. Alle Unterdruck-Fixierelemente 19 sind an ein zentrales (nicht dargestelltes) Vakuumsystem angeschlossen. Zur Fixierung eines konkreten Kfz-Stoßfänger-Modellsl werden - wie zuvor bereits beschrieben - entsprechend zunächst die mit ihrer Anlagekontur 7', 8', 9', 10' an genau dieses Modell angepassten Fixierarme 7, 8, 9, 10 in die waagerechte Arbeitsstellung überführt, der Stoßfänger 1 danach auf diese Fixierarme 7, 8, 9, 10 aufgelegt und sodann mittels des vom Vakuumsystem erzeugten Unterdruck fixiert. Hierbei wird der Stoßfänger 1 an die an ihn angepassten Anlagekonturen 7', 8', 9', 10' dieser Fixierarme 7, 8, 9, 10 angepresst. Danach werden die Seitenflächen 50 (Ohren) des Stoßfängers 1 mittels der entsprechend angepassten Seitenfixier-Elemente 13, 14, 15, 16 fixiert. In diesem sicher und exakt fixierten Zustand des Stoßfängers 1 ist eine sehr genaue Bearbeitung, insbesondere Stanzbearbeitung, möglich.In particular the Fig. 3 it can be seen that the fixing arms 7, 8, 9, 10 in the area of the contact contour 7 ', 8', 9 ', 10' each have a plurality of vacuum fixing elements 19 spaced apart from one another. All negative pressure fixing elements 19 are connected to a central (not shown) vacuum system. To fix a specific motor vehicle bumper model - as already described - the fixing arms 7, 8, 9, 10, which are adapted to precisely this model with their contact contour 7 ', 8', 9 ', 10', are first moved into the horizontal working position transferred, the bumper 1 is then placed on these fixing arms 7, 8, 9, 10 and then fixed by means of the negative pressure generated by the vacuum system. Here, the bumper 1 is pressed against the contact contours 7 ', 8', 9 ', 10' of these fixing arms 7, 8, 9, 10, which are adapted to it. The side surfaces 50 (ears) of the bumper 1 are then fixed by means of the correspondingly adapted side fixing elements 13, 14, 15, 16. In this securely and precisely fixed state of the bumper 1, very precise machining, in particular punching, is possible.

Die Fixierarme 7, 8, 9, 10 sind demontierbar am Grundgestell 2 angeordnet, so dass diese zwecks Anpassung der Aufnahmevorrichtung an unterschiedlichste Stoßfänger-Modelle 1 austauschbar sind.The fixing arms 7, 8, 9, 10 are arranged on the base frame 2 such that they can be dismantled so that they can be exchanged for the purpose of adapting the receiving device to a wide variety of bumper models 1.

Claims (8)

  1. Holding device for fixing polymeric motor-vehicle bumpers (1) during a machining operation, in particular a punching operation, having
    - a main frame (2) and
    - a fixing device (3) for fixing the bumper (1) on the main frame (2)
    characterised in that the fixing device (3) comprises at least one fixing arm group (4, 5, 6) having at least two independently movable fixing arms (7, 8, 9, 10) for different bumper models (1), wherein the fixing arms (7, 8, 9, 10) possess different contact contours (7', 8', 9', 10') abutting in the fixing position against the corresponding bumper model (1) and the contact contour (7', 8', 9', 10') of the fixing arms (7, 8, 9, 10) is matched in each case to the local shape of a particular bumper model (1),
    and in that in the region of the contact contour (7', 8', 9', 10') the fixing arms (7, 8, 9, 10) each comprise at least one vacuum fixing element (19) which is connected to a, preferably central, vacuum system.
  2. Holding device according to claim 1, characterised in that the fixing device (3) comprises a plurality of, preferably three, fixing arm groups (4, 5, 6) by means of which the bumpers (1) can be fixed at several spaced apart points on the main frame (2).
  3. Holding device according to claim 1 or 2, characterised in that the fixing arms (7, 8, 9, 10) are pivotally-movably connected to the main frame (2).
  4. Holding device according to claim 3, characterised in that each fixing arm (7, 8, 9, 10) can be separately transferred from a preferably substantially vertical basic position into a preferably substantially horizontal fixing working position by means of a pivoting movement.
  5. Holding device according to claim 4, characterised in that the pivoting movement takes place in each case using a pinion (17) arranged on the fixing arm (7, 8, 9, 10), the pinion (17) being connected to a pneumatic drive by means of a rack (18).
  6. Holding device according to one of claims 1 to 5, characterised in that the fixing device (3) additionally comprises at least two side fixing units (11, 12) each having at least two side fixing elements (13, 14, 15, 16) which are used for a model-specific fixing of the side surfaces (50) of the bumper (1).
  7. Holding device according to one of claims 1 to 7, characterised in that the fixing arms (7, 8, 9, 10) are demountably arranged on the main frame (2) such that they are replaceable for the purpose of adapting the holding device to different bumper models (1).
  8. Machine, in particular a punching machine, having at least one holding device according to one of claims 1 to 8.
EP15774857.5A 2014-11-26 2015-10-01 Holding device for fastening polymeric motor-vehicle bumpers Active EP3224007B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202014105704.8U DE202014105704U1 (en) 2014-11-26 2014-11-26 Receiving device for fixing polymeric vehicle bumpers
PCT/EP2015/001933 WO2016082903A1 (en) 2014-11-26 2015-10-01 Holding device for fastening polymeric motor-vehicle bumpers

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EP3224007A1 EP3224007A1 (en) 2017-10-04
EP3224007B1 true EP3224007B1 (en) 2021-02-24

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US (1) US20170326750A1 (en)
EP (1) EP3224007B1 (en)
CN (1) CN107000237B (en)
DE (1) DE202014105704U1 (en)
HU (1) HUE054523T2 (en)
MX (1) MX2017006771A (en)
WO (1) WO2016082903A1 (en)
ZA (1) ZA201703012B (en)

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DE102017128207A1 (en) 2017-11-29 2019-05-29 Rehau Ag + Co Receiving device for fixing polymeric vehicle components
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HUE054523T2 (en) 2021-09-28
CN107000237A (en) 2017-08-01
US20170326750A1 (en) 2017-11-16
CN107000237B (en) 2019-01-15
MX2017006771A (en) 2017-09-08
WO2016082903A1 (en) 2016-06-02
DE202014105704U1 (en) 2016-02-29
ZA201703012B (en) 2018-05-30
EP3224007A1 (en) 2017-10-04

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