EP0940200A3 - Verfahren und Vorrichtung zum Entfernen eines Lochbutzens aus einem Innenhochdruck-Umformwerkzeug - Google Patents

Verfahren und Vorrichtung zum Entfernen eines Lochbutzens aus einem Innenhochdruck-Umformwerkzeug Download PDF

Info

Publication number
EP0940200A3
EP0940200A3 EP19990101944 EP99101944A EP0940200A3 EP 0940200 A3 EP0940200 A3 EP 0940200A3 EP 19990101944 EP19990101944 EP 19990101944 EP 99101944 A EP99101944 A EP 99101944A EP 0940200 A3 EP0940200 A3 EP 0940200A3
Authority
EP
European Patent Office
Prior art keywords
slug
tool
plunger
hydroforming
hydroforming tool
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
EP19990101944
Other languages
English (en)
French (fr)
Other versions
EP0940200A2 (de
EP0940200B1 (de
Inventor
Thomas Hülsberg
Ralf Pünjer
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.)
Daimler AG
Original Assignee
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP0940200A2 publication Critical patent/EP0940200A2/de
Publication of EP0940200A3 publication Critical patent/EP0940200A3/de
Application granted granted Critical
Publication of EP0940200B1 publication Critical patent/EP0940200B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49805—Shaping by direct application of fluent pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0596—Cutting wall of hollow work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Cleaning In General (AREA)
  • Details Of Cutting Devices (AREA)
  • Adornments (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Entfernen eines aus einem Hohlprofil (3) mittels eines fluidischen Innenhochdruckes getrennten Lochbutzens (13) aus einem Innenhochdruck-Umformwerkzeug (1). Der Lochbutzen wird bezüglich des Hohlprofiles von innen nach außen unter Zurückziehen eines im Umformwerkzeug (1) integrierten einen Lochbutzenkanal (5) beim Zurückziehen freigebenden Stempels (6) herausgetrennt und aus dem Formraum (2) des Umformwerkzeuges heraus in den Lochbutzenkanal hineingepreßt. Danach wird in drucklosem Zustand des Hohlprofils der nach dem Hineinpressen an der Stirnseite (7) des Stempels anliegende Lochbutzen mittels eines Entnahmewerkzeuges (14) aus dem Umformwerkzeug entfernt. Um ein Entfernen von Lochbutzen aus dem Umformwerkzeug heraus aus jeder beliebigen Lage des in die Gravur des Umformwerkzeuges führenden Lochbutzenkanals, in dem der Lochbutzen nach der Lochung vorerst aufgenommen ist, in einfacher Weise zu ermöglichen, wird vorgeschlagen, daß der Lochbutzen an der Stempelstirnseite während seines Aufenthaltes im Lochbutzenkanal durch ein mit dem Stempel verbundenes Haftmittel gehalten wird, und daß nach Öffnen des Umformwerkzeuges und Entnahme des fertigumgeformten Hohlprofiles der Lochbutzen unter bleibender Haftung an der Stempelstirnseite mittels des Stempels und das mit einem Haftmittel ausgebildete Entnahmewerkzeug in den offenen Formraum hineingeführt wird, wobei der Lochbutzen und der Bereich des Entnahmewerkzeuges, in dem das Haftmittel wirkt, eine gegenüberliegende Relativlage zueinander einnehmen, wonach der Lochbutzen vom Stempel abgelöst wird und dann am Entnahmewerkzeug anhaftet, mittels dessen der anhaftende Lochbutzen anschließend aus dem Umformwerkzeug herausgeführt wird.
EP19990101944 1998-03-05 1999-01-30 Verfahren und Vorrichtung zum Entfernen eines Lochbutzens aus einem Innenhochdruck-Umformwerkzeug Expired - Lifetime EP0940200B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19809519 1998-03-05
DE19809519A DE19809519C1 (de) 1998-03-05 1998-03-05 Verfahren und Vorrichtung zum Entfernen eines Lochbutzens aus einem Innenhochdruck-Umformwerkzeug

Publications (3)

Publication Number Publication Date
EP0940200A2 EP0940200A2 (de) 1999-09-08
EP0940200A3 true EP0940200A3 (de) 2000-05-03
EP0940200B1 EP0940200B1 (de) 2001-08-22

Family

ID=7859862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990101944 Expired - Lifetime EP0940200B1 (de) 1998-03-05 1999-01-30 Verfahren und Vorrichtung zum Entfernen eines Lochbutzens aus einem Innenhochdruck-Umformwerkzeug

Country Status (6)

Country Link
US (1) US6006566A (de)
EP (1) EP0940200B1 (de)
AT (1) ATE204520T1 (de)
CA (1) CA2264491A1 (de)
DE (2) DE19809519C1 (de)
ES (1) ES2162711T3 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0995513B1 (de) * 1998-10-23 2006-02-22 Alcan Technology & Management AG Verfahren und Vorrichtung zum Entnehmen eines Lochbutzens aus einem Innenhochdruck-Umformwerkzeug
DE19859925C2 (de) * 1998-12-23 2002-12-05 Forschungsges Umformtechnik Verfahren und Vorrichtung zum Entfernen von Lochbutzen
WO2001062410A2 (en) * 2000-02-22 2001-08-30 Cosma International Inc. Hydroforming flush system
US6662611B2 (en) 2000-02-22 2003-12-16 Magna International, Inc. Hydroforming flush system
US6401507B1 (en) * 2001-11-30 2002-06-11 General Motors Corporation Hydroforming, in-die hydropiercing and slug-ejecting method and apparatus
US6591648B1 (en) * 2002-06-24 2003-07-15 Greenville Tool & Die Company Method of stamping and piercing a tube
AU2003290762A1 (en) 2002-11-12 2004-06-03 Cosma International Method of forming hydroformed member with opening
US7249480B2 (en) * 2004-09-24 2007-07-31 General Motors Corporation In-die hydropiercing device for piercing holes in hydroformed parts
DE102005033493B3 (de) * 2005-07-19 2006-09-28 Daimlerchrysler Ag Verfahren und Vorrichtung zum Entfernen eines aus einem Hohlprofil herausgetrennten Lochbutzens
US7104099B1 (en) * 2005-08-16 2006-09-12 Gm Global Technology Operations, Inc. Center support punch assembly for hydroforming die
US7111482B1 (en) * 2005-09-13 2006-09-26 Gm Global Technology Operations, Inc. Punch assembly for hydroforming die
KR100757595B1 (ko) * 2006-04-29 2007-09-10 현대자동차주식회사 하이드로포밍용 튜브의 피어싱 장치 및 방법
DE102007017420B4 (de) * 2007-04-13 2016-11-17 Daimler Ag Verfahren und Vorrichtung zur Herstellung eines Hohlprofils
BR112012002455B1 (pt) * 2009-08-05 2019-11-05 Gi Di Mecc S P A método para obter uma abertura em um membro de corpo oco e equipamento para implementação do método
CN102172732B (zh) * 2011-01-29 2013-01-16 昆山联德精密机械有限公司 级进模卷圆抽芯机构
US9067252B2 (en) * 2013-10-30 2015-06-30 Caterpillar Inc. System and method of forming hole in blank during hydroforming process
CN106040791B (zh) * 2016-07-29 2018-01-23 成都宏明双新科技股份有限公司 一种级进模内利用浮动阶梯模芯纵向圈圆的机构及圈圆方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5398533A (en) * 1994-05-26 1995-03-21 General Motors Corporation Apparatus for piercing hydroformed part

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991456A (en) * 1972-04-10 1976-11-16 Stanray Corporation Method of forming valve bodies
US4989482A (en) * 1989-11-17 1991-02-05 Ti Corporate Services Limited Method and apparatus for punching a hole in sheet material
DE4322063C2 (de) * 1993-07-02 1999-07-15 Schaefer Hydroforming Gmbh Verfahren und Vorrichtung zum Ausschneiden eines Ausschnittes aus einer Wandung eines nach dem Innenhochdruck-Umformverfahren hergestellten Hohlkörpers
US5816089A (en) * 1996-11-26 1998-10-06 Dana Corporation Hydroforming apparatus having in-die hole piercing capabilities and a slug ejection system using hydroforming fluid

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5398533A (en) * 1994-05-26 1995-03-21 General Motors Corporation Apparatus for piercing hydroformed part

Also Published As

Publication number Publication date
ATE204520T1 (de) 2001-09-15
DE59900203D1 (de) 2001-09-27
US6006566A (en) 1999-12-28
DE19809519C1 (de) 1999-07-01
EP0940200A2 (de) 1999-09-08
ES2162711T3 (es) 2002-01-01
EP0940200B1 (de) 2001-08-22
CA2264491A1 (en) 1999-09-05

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