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.)
Mercedes Benz Group 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)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Adornments (AREA)
  • Details Of Cutting Devices (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
US6662611B2 (en) 2000-02-22 2003-12-16 Magna International, Inc. Hydroforming flush system
AU2001233534A1 (en) * 2000-02-22 2001-09-03 Cosma 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
CA2505095C (en) * 2002-11-12 2012-09-11 Magna International Inc. 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
CN102481615B (zh) * 2009-08-05 2015-02-18 Gi.Di.机械公司 用于在中空体构件中获得开口的方法以及设置有利用所述方法获得的一个或更多个开口的中空体构件
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
DE19809519C1 (de) 1999-07-01
US6006566A (en) 1999-12-28
ATE204520T1 (de) 2001-09-15
EP0940200A2 (de) 1999-09-08
EP0940200B1 (de) 2001-08-22
CA2264491A1 (en) 1999-09-05
DE59900203D1 (de) 2001-09-27
ES2162711T3 (es) 2002-01-01

Similar Documents

Publication Publication Date Title
EP0940200A3 (de) Verfahren und Vorrichtung zum Entfernen eines Lochbutzens aus einem Innenhochdruck-Umformwerkzeug
EP1200211B1 (de) Verfahren und vorrichtung zum formen von gegenüberliegenden löchern in einer seitenwand eines rohrförmigen werkstückes
US5816089A (en) Hydroforming apparatus having in-die hole piercing capabilities and a slug ejection system using hydroforming fluid
US5398533A (en) Apparatus for piercing hydroformed part
CA2452168C (en) Method of stamping and piercing a tube
CA2491434A1 (en) Method and apparatus for forming a structural member
BR0209389A (pt) Método para conformar por prensa hidráulica recipientes de metal e similares
EP1274523B1 (de) Hochdruckumformspülanlage
CA2589659A1 (en) Method for forming tapered piston pins
CA2426029A1 (en) Apparatus and method for hydroforming a tubular part
AU2003266077A1 (en) Pipe centralizer and method of forming
JP2004511352A (ja) 内部に物品が挿入されているようにしてチューブを形成するための方法および装置
AU2001281772A1 (en) Method and device for making a cast part from a plastic/metal compound and device use
US6662611B2 (en) Hydroforming flush system
EP1136155A3 (de) Verfahren und Vorrichtung zum Enfernen von Stanznieten
US8141466B2 (en) Punch device for piercing hydro-formed member
US6151937A (en) Machine for forming T-shaped tubular components using a forming material insert
WO2001083169A3 (en) Hollow body hole punching apparatus, system, and method
WO2000027563A3 (en) Metal forming apparatus and method of use
KR930019369A (ko) 플라스틱 막의 냉간성형용 공구 및 그 성형방법
CN214601689U (zh) 一种深孔锻件穿孔护套及顶出模具
US20070157692A1 (en) Method and device for producing workpieces by means of internal high pressure forming
CA2505095A1 (en) Method of forming hydroformed member with opening
WO2005053891A3 (en) Cold form nozzle for laser processing
JPH09271870A (ja) Ｄｉプレス機における缶胴体の抜取り装置および抜取り方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT DE ES FR GB IT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000401

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

AKX Designation fees paid

Free format text: AT DE ES FR GB IT SE

17Q First examination report despatched

Effective date: 20001215

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE ES FR GB IT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20010822

REF Corresponds to:

Ref document number: 204520

Country of ref document: AT

Date of ref document: 20010915

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59900203

Country of ref document: DE

Date of ref document: 20010927

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20011005

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011122

ET Fr: translation filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2162711

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020130

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070110

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070119

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20070130

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070111

Year of fee payment: 9

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20081029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080130

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20080131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080131

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

Ref country code: FR

Ref legal event code: CA