DE102008034636A1 - Deforming tool for use in vehicle structure, has bending die causing bending of chamfers with bending angle that provides rebounding measure of chamfers so that preset reference angle is formed after removing of pressing parts from tool - Google Patents
Deforming tool for use in vehicle structure, has bending die causing bending of chamfers with bending angle that provides rebounding measure of chamfers so that preset reference angle is formed after removing of pressing parts from tool Download PDFInfo
- Publication number
- DE102008034636A1 DE102008034636A1 DE200810034636 DE102008034636A DE102008034636A1 DE 102008034636 A1 DE102008034636 A1 DE 102008034636A1 DE 200810034636 DE200810034636 DE 200810034636 DE 102008034636 A DE102008034636 A DE 102008034636A DE 102008034636 A1 DE102008034636 A1 DE 102008034636A1
- Authority
- DE
- Germany
- Prior art keywords
- bending
- angle
- chamfers
- tool
- fold
- 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.)
- Withdrawn
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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
-
- 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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
- B21D19/10—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws working inwardly
-
- 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
- B21D22/20—Deep-drawing
- B21D22/24—Deep-drawing involving two drawing operations having effects in opposite directions with respect to the blank
-
- 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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Umformwerkzeug zur Herstellung von metallischen Pressteilen, insbesondere von Verstärkungsrahmen aus Metall, mit den Merkmalen des Oberbegriffs des Anspruch 1. Des Weiteren betrifft die Erfindung auch ein Verfahren zur Herstellung derartiger Pressteile.The The present invention relates to a forming tool for manufacturing of metallic pressed parts, in particular reinforcing frames Metal, with the features of the preamble of claim 1. Furthermore The invention also relates to a method for producing such Pressings.
Die Reduktion des Gewichtes von Bauteilen ist insbesondere im Fahrzeugbau seit jeher ein wichtiger Verbesserungsprozess. Dabei soll die Gewichtsersparnis nicht auf Kosten der Stabilität und Maßhaltigkeit erreicht werden. Aluminium ist aufgrund seines geringen spezifischen Gewichts besonders für eine Leichtbauweise geeignet. Beispielsweise können Schiebe-/Hebedächer mit transparentem Dachfensterausschnitt mit einem Verstärkungsrahmen aus Aluminiumguss ausgestattet sein. Dieser Konstruktionsaufbau ist aber zum einen teuer und zum anderen aufwendig in der Herstellung und weist Maßhaltigkeitsprobleme während der Fertigung und auch im späteren Einsatz auf. Wird stattdessen ein Verstärkungsrahmen aus Aluminiumblech mit Umkantungen und eventuellen Profilierungen verwendet, kann ein Verstärkungsrahmen aus Aluminiumguss eingespart werden, ohne dass die Stabilität des Bauteils darunter leidet. Besonders im Fall von Schiebe-/Hebedächern, die einen Dachfensterausschnitt besitzen, erhöhen die Abkantungen zum einen die Stabilität und können zum anderen als Flansch zur Montage des Dachfensters oder weiterer Bauteile verwendet werden.The Reduction of the weight of components is especially in vehicle construction has always been an important improvement process. Here is the weight savings not at the expense of stability and dimensional stability be achieved. Aluminum is due to its low specific Weight particularly suitable for lightweight construction. For example can sliding / lifting roofs with transparent roof window cutout equipped with a reinforcing frame made of cast aluminum be. But this construction is expensive and expensive other consuming in the production and has Maßhaltigkeitsprobleme during production and also in later use on. Instead, a reinforcing frame made of aluminum sheet can be used with edging and any profilings Gain frames made of cast aluminum can be saved without the stability of the component suffers. Especially in the case of sliding / lifting roofs, which have a roof window cutout own, increase the folds on the one hand, the stability and can be used as a flange for mounting the roof window or other components are used.
Somit ist es heute durchaus üblich, Bauteile aus Blech durch Abkantungen und Profilierungen zu verstärken. Dabei wird eine Abkantung z. B. mit einem Abkantwinkel von 90° durch ein Umformwerkzeug mit einem Abkantstempel hergestellt. Nachteilig an dieser Herstellung ist, dass die Abkantung nach Entnahme aus dem Umformwerkzeug teilweise zurückspringt und sich somit ein von 90° abweichender Winkel als 90° einstellt.Consequently It is quite common today, through components made of sheet metal Reinforce folds and profiles. It will a fold z. B. with a Abkantwinkel of 90 ° a forming tool made with a punch. Disadvantageous This production is that the fold after removal from the Forming tool partially springs back and thus a angle other than 90 ° than 90 °.
Dies ist zum einen nachteilig für die Stabilität und erschwert zum anderen die nachträgliche Montage des Aluminiumbleches. Des Weiteren ist die Maßhaltigkeit in einer Operation bzgl. der Abkantung verschlechtert.This is for a disadvantageous for the stability and on the other hand hinders the subsequent assembly of the aluminum sheet. Furthermore, the dimensional accuracy in an operation regarding. the fold deteriorates.
Ein
Verfahren zur Herstellung von rückfederungsarmen Halbschalen
ist in der
Die vorliegende Erfindung beschäftigt sich mit dem Problem, für ein Umformwerkzeug bzw. Herstellungsverfahren der eingangs genannten Art eine verbesserte Ausführungsform anzugeben, die sich insbesondere dadurch auszeichnet, dass nach dem Umformvorgang, wenn möglich in einem Arbeitsschritt, genau der gewünschte Sollwinkel vorliegt.The The present invention addresses the problem of for a forming tool or manufacturing method of the beginning to specify an improved embodiment, characterized in particular by the fact that after the forming process, if possible in one work step, exactly the desired one Target angle is present.
Erfindungsgemäß wird diese Aufgabe durch die Gegenstände der unabhängigen Ansprüche gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.According to the invention this task by the objects of the independent Claims solved. Advantageous embodiments are the subject of the dependent claims.
Kerngedanke der Erfindung ist somit das Überbiegen von Abkantungen metallischer Pressteile unter Berücksichtigung des Rückspringmaßes. Hierzu wird nach Herstellung der Abkantung im Umformwerkzeug in einem weiteren Arbeitsschritt, wenn möglich durch das gleiche Umformwerkzeug, die Abkantung über den Abkantwinkel hinaus überbogen. Nach Öffnen des Umformwerkzeugs und Druckentlastung des Pressteils, springt die überbogene Abkantung teilweise zurück, so dass sich durch Überbiegen und Zurückspringen der gewünschte Sollwinkel ergibt. Vorteilhaft ist die Ausprägung der Abkantung mit gewünschtem Sollwinkel in einem Arbeitsschritt und die hohe Maßhaltigkeit und Stabilität von metallischen Pressteilen mit so hergestellten Abkantungen.core idea The invention is thus the overbending of bends metallic pressed parts taking into account the rebound dimension. For this purpose, after production of the fold in the forming tool in another step, if possible by the same Forming tool, bend over the fold beyond the bending angle. After opening of the forming tool and pressure relief of the pressed part, jumps the over-arched fold partially back, so that by overbending and jumping back the desired nominal angle results. Advantageous is the expression the bevel with desired desired angle in one step and the high dimensional stability and stability of metallic Pressed parts with bends produced in this way.
Weitere Merkmale und Vorteile des Umformwerkzeugs ergeben sich aus der folgenden detaillierten Beschreibung einer bevorzugten Ausführungsform anhand der beigefügten schematischen Zeichnungen.Further Features and benefits of the forming tool will be apparent from the following detailed description of a preferred embodiment with reference to the attached schematic drawings.
Dabei zeigen:there demonstrate:
Entsprechend
Die
dem oberen Stempel
Dabei
bilden die unteren Niederhalter
Die
unteren Niederhalter
Ein
in das Unformwerkzeug
Durch
Absenken des Abkantstempels
Der
Abkantstempel
Wie
nun in
Nach Öffnen
des Umformwerkzeuges
Die
Abkantung
Das
in den Figuren dargestellte Umformwerkzeug
In
einer bevorzugten Ausführungsform, sind die Niederhalter
Die in der vorstehenden Beschreibung, in den Zeichnungen sowie in den Ansprüchen offenbarten Merkmale der Erfindung können sowohl einzeln, als auch in beliebiger Kombination oder in Alleinstellung für die Verwirklichung der Erfindung in ihren verschiedenen Ausführungsformen wesentlich sein.The in the above description, in the drawings and in the Claims disclosed features of the invention can both individually, as well as in any combination or in isolation for the realization of the invention in its various Embodiments be essential.
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102006020000 B3 [0005] - DE 102006020000 B3 [0005]
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810034636 DE102008034636A1 (en) | 2008-07-25 | 2008-07-25 | Deforming tool for use in vehicle structure, has bending die causing bending of chamfers with bending angle that provides rebounding measure of chamfers so that preset reference angle is formed after removing of pressing parts from tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810034636 DE102008034636A1 (en) | 2008-07-25 | 2008-07-25 | Deforming tool for use in vehicle structure, has bending die causing bending of chamfers with bending angle that provides rebounding measure of chamfers so that preset reference angle is formed after removing of pressing parts from tool |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008034636A1 true DE102008034636A1 (en) | 2009-04-02 |
Family
ID=40384543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810034636 Withdrawn DE102008034636A1 (en) | 2008-07-25 | 2008-07-25 | Deforming tool for use in vehicle structure, has bending die causing bending of chamfers with bending angle that provides rebounding measure of chamfers so that preset reference angle is formed after removing of pressing parts from tool |
Country Status (1)
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DE (1) | DE102008034636A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009056471A1 (en) | 2009-12-01 | 2011-05-12 | Daimler Ag | Molding tool for manufacturing metallic press components, particularly auto body components, has blank holder and die, between which press component is clamped and stamp is provided for molding chamfer having bend radius |
CN107199296A (en) * | 2017-06-02 | 2017-09-26 | 烟台正海合泰科技股份有限公司 | A kind of production method of automotive interior roof skylight frame |
CN114558918A (en) * | 2022-03-25 | 2022-05-31 | 昌河飞机工业(集团)有限责任公司 | Bending forming method for large-pipe-diameter thin-walled pipe without transition in middle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006020000B3 (en) | 2006-04-26 | 2007-11-08 | Thyssenkrupp Steel Ag | Method for producing low-spring half shells |
-
2008
- 2008-07-25 DE DE200810034636 patent/DE102008034636A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006020000B3 (en) | 2006-04-26 | 2007-11-08 | Thyssenkrupp Steel Ag | Method for producing low-spring half shells |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009056471A1 (en) | 2009-12-01 | 2011-05-12 | Daimler Ag | Molding tool for manufacturing metallic press components, particularly auto body components, has blank holder and die, between which press component is clamped and stamp is provided for molding chamfer having bend radius |
CN107199296A (en) * | 2017-06-02 | 2017-09-26 | 烟台正海合泰科技股份有限公司 | A kind of production method of automotive interior roof skylight frame |
CN107199296B (en) * | 2017-06-02 | 2018-12-04 | 烟台正海合泰科技股份有限公司 | A kind of production method of automotive interior roof skylight frame |
CN114558918A (en) * | 2022-03-25 | 2022-05-31 | 昌河飞机工业(集团)有限责任公司 | Bending forming method for large-pipe-diameter thin-walled pipe without transition in middle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20140201 |