EP1063028B2 - Presse pour hydroformage extérieur - Google Patents

Presse pour hydroformage extérieur Download PDF

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Publication number
EP1063028B2
EP1063028B2 EP00111618A EP00111618A EP1063028B2 EP 1063028 B2 EP1063028 B2 EP 1063028B2 EP 00111618 A EP00111618 A EP 00111618A EP 00111618 A EP00111618 A EP 00111618A EP 1063028 B2 EP1063028 B2 EP 1063028B2
Authority
EP
European Patent Office
Prior art keywords
press
external
cylinder
ram
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.)
Expired - Lifetime
Application number
EP00111618A
Other languages
German (de)
English (en)
Other versions
EP1063028B1 (fr
EP1063028A1 (fr
Inventor
Joachim Beyer
Ulrich Hermann
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.)
Mueller Weingarten AG
Original Assignee
Mueller Weingarten 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
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Application filed by Mueller Weingarten AG filed Critical Mueller Weingarten AG
Publication of EP1063028A1 publication Critical patent/EP1063028A1/fr
Application granted granted Critical
Publication of EP1063028B1 publication Critical patent/EP1063028B1/fr
Publication of EP1063028B2 publication Critical patent/EP1063028B2/fr
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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
    • B21D22/205—Hydro-mechanical 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
    • 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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/04—Blank holders; Mounting means therefor
    • B21D24/08—Pneumatically or hydraulically loaded blank holders

Definitions

  • the invention relates to a press, in particular a forming press which operates on the method of external high pressure forming according to the preamble of patent claim 1, which performs the forming process due to the proposed arrangement of the drive and forming assemblies with a small number of functional steps and characterized by a compact rigid design distinguished. Furthermore, a sheet metal holder system is proposed with a high flexibility and low height.
  • the press is based on the task of working as a universal or combination press for the particular purpose, of course, not optimally designed.
  • the invention has for its object to provide a press high rigidity for the external high pressure forming, which allows a reduction of the process steps in which the liquid box can be arranged stationary and which has a freely selectable and needs-based arrangement of the blank holder cylinder.
  • the invention is based on the idea to choose the arrangement of the fluid cylinder so that a rigid and compact design is ensured by a direct position in the power flow.
  • a common method of ram and blank holder only one Verfahrzylinder is required and the sheet holding cylinder can be designed as pure Kurzhubzylinder.
  • These short stroke cylinders are not arranged in a rigid system, but the number and their arrangement can be optimally selected according to the requirements of the forming process for the respective workpieces. Appropriate detachable connections to the one or more energy-carrying lines are provided.
  • the working cylinder carrying the tool are integrated directly in the ram.
  • the regulation of the back pressure takes place in the stationary fluid box, whereby a stationary piping is made possible, which is another advantage in a high-pressure operation.
  • the entire process consists of a total of 11 functional steps which overlap in some cases.
  • a high number of cycles and economical use of the press is guaranteed.
  • a favorable energy balance due to small amounts of oil required results from the common displacement cylinder for ram and blank holder and the use of the short-stroke cylinder for controlling the plate holding force and the structure of the maximum clamping force. Since the short-stroke cylinders do not travel along the forming path, but only execute a stroke of a few millimeters, this results in a low-cost design with a low overall height. This is also advantageous if a multi-point support is required due to the workpiece geometry.
  • Figure 1 shows the basic structure of the forming press, consisting of press stand 1, plunger 2, plate holder 3, table 4, drive cylinder 5, working cylinder 6, short-stroke cylinder 7, 8 lock, tool 9, fluid box 10 and board eleventh
  • Drive cylinder 5 has lowered plunger 2 with plate holder 3 so far that the blank holder 3 touches down on the board 11.
  • About the short-stroke cylinder 7 is a regulated pressure build-up for the sheet holding force in response to the forming process.
  • the number and arrangement of the short-stroke cylinder 7 is selected depending on the tool and the board. Determinants of the tool are e.g. the tool size and the tool contour, with the board are among other mechanical material properties, forming speeds and tribological processes important.
  • each short-stroke cylinder 7 can be controlled individually or joined together in groups.
  • the tool is moved to its lowest position 13, e.g. is limited by stops and is locked by retractable tool distances 12 shown in Figure 3.
  • This locking is required to safely support a high pressure which is built up to complete the forming process in the fluid box 10.
  • a high pressure which is built up to complete the forming process in the fluid box 10.
  • the workpiece is pressed and formed in a kind of calibration in the tool contour.
  • a maximum plate holding force is generated by short-stroke cylinder 7, which ensures a secure clamping of the board or workpiece edge.
  • the strains or compressions of the press components occurring as a result of these forces are compensated for in an advantageous manner by the arrangement and the stroke of the short-stroke cylinders 7.
  • Fluid couplings 16 are used to connect the respective short-stroke cylinder with the power supply.
  • a holding or tool top plate 17 is connected to the plunger 2 and allows easy installation and removal of the working cylinder. 6
  • FIG. 2 shows the situation at bottom dead center.
  • the pressure medium 14 is subjected to a maximum pressure in which the final component geometry is formed in a plasticizing forming process.
  • a subsequent flow of the clamped edge of the board is undesirable in this calibration process and is reliably prevented by the maximum clamping force generated by the Kurzhubzylindern 7.
  • the large forces occurring in this phase are absorbed by cooperation with the retracted ram locks 8 and tool spacers 12 in a closed-system manner.
  • FIG. 3 is a sectional view showing an arrangement of the short-stroke cylinders 7. As already mentioned, both the arrangement and the number of short-stroke cylinders 7 can be freely selected according to the component.
  • the movable tool distances are denoted by 12 and the associated displacement cylinder 15. In the position shown, the tool distances 12 are extended, i. the tool 9 is no longer locked.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Claims (8)

  1. Presse pour le formage sous haute pression externe, comportant un coulisseau (2) et un support de tôle (3) pouvant être déplacés vers le haut et vers le bas et pouvant être verrouillés, des vérins de support de tôle (7), un caisson de liquide (10) réglé en pression recevant un agent sous pression (14), et des vérins de travail (6) pour le formage, caractérisée en ce que le coulisseau (2) et le support de tôle (3) sont entraînés en commun dans le mouvement vers le haut et vers le bas, les vérins de support de tôle (7) étant réalisés comme vérins à courte course, et les vérins de travail (6) portant l'outil (9) étant intégrés dans le coulisseau (2).
  2. Presse pour le formage sous haute pression externe selon la revendication 1,
    caractérisée en ce que le coulisseau (2) et le support de tôle (3) peuvent être entraînés par un vérin de déplacement commun (5).
  3. Presse pour le formage sous haute pression externe selon la revendication 1,
    caractérisée en ce que les vérins à courte course (7) peuvent être librement choisis en ce qui concerne leur agencement et/ou leur nombre.
  4. Presse pour le formage sous haute pression externe selon la revendication 1,
    caractérisée en ce que, sur le coulisseau (2), des couplages fluidiques (16) sont prévus.
  5. Presse pour le formage sous haute pression externe selon la revendication 1,
    caractérisée en ce que les vérins à courte course (7) peuvent être réglés individuellement ou en groupes.
  6. Presse pour le formage sous haute pression externe selon la revendication 1,
    caractérisée en ce que les vérins à courte course (7) peuvent être réglés en pression suivant des courbes de consigne prédéfinies pour la force de support de tôle.
  7. Presse pour le formage sous haute pression externe selon la revendication 1,
    caractérisée en ce que les vérins à courte course (7) peuvent être alimentés en pression de sorte que la platine (11) peut être serrée.
  8. Presse pour le formage sous haute pression externe selon la revendication 1,
    caractérisée en ce que l'outil (9) peut être verrouillé par des entretoises (12).
EP00111618A 1999-06-23 2000-05-31 Presse pour hydroformage extérieur Expired - Lifetime EP1063028B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19928422 1999-06-23
DE19928422A DE19928422A1 (de) 1999-06-23 1999-06-23 Presse zum Außenhochdruckformen

Publications (3)

Publication Number Publication Date
EP1063028A1 EP1063028A1 (fr) 2000-12-27
EP1063028B1 EP1063028B1 (fr) 2001-10-31
EP1063028B2 true EP1063028B2 (fr) 2007-06-13

Family

ID=7912054

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00111618A Expired - Lifetime EP1063028B2 (fr) 1999-06-23 2000-05-31 Presse pour hydroformage extérieur

Country Status (5)

Country Link
US (1) US6481256B1 (fr)
EP (1) EP1063028B2 (fr)
CA (1) CA2312435C (fr)
DE (2) DE19928422A1 (fr)
ES (1) ES2167301T5 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50003807D1 (de) * 1999-08-10 2003-10-30 Mueller Weingarten Maschf Zuhaltevorrichtung für hydraulisch angetriebene Pressen
DE10110161A1 (de) * 2001-03-02 2003-01-02 Audi Ag Umformwerkzeug zum hydromechanischen Tiefziehen von Werkstücken aus Blechzuschnitten
DE10110162B4 (de) * 2001-03-02 2006-07-27 Audi Ag Umformwerkzeug zum hydromechanischen Tiefziehen von Werkstücken aus Blechzuschnitten
DE10202411A1 (de) * 2002-01-22 2003-07-31 Thyssenkrupp Ag Wandpannel für eine Vorhangfassade und Verfahren zur Herstellung von Wandpaneelen
DE10305654B3 (de) * 2003-02-12 2004-02-26 Thyssenkrupp Stahl Ag Werkzeugmaschine für das Außenhochdruckumformen von Platinen
DE10339004B4 (de) * 2003-08-25 2006-09-28 Wieber, Christian, Dipl.-Ing.(FH), Batu Caves Hydraulische Presse
DE102004059141A1 (de) * 2004-12-08 2006-06-14 Wieber, Christian, Dipl.-Ing.(FH), Batu Caves Hydraulische Presse
US8118197B2 (en) * 2007-06-18 2012-02-21 Precision Valve Corporation Method of making aerosol valve mounting cups and resultant cups
US7614270B2 (en) * 2008-02-14 2009-11-10 Ford Global Technologies, Llc Method and apparatus for superplastic forming
CN101596563B (zh) * 2009-07-03 2010-12-22 吉林大学 板材拉形机
AT509004B1 (de) * 2009-10-30 2011-07-15 Trumpf Maschinen Austria Gmbh Presse und werkzeug mit haltevorrichtung für ein werkstück
CN102233382B (zh) * 2010-04-26 2016-03-09 扬州广菱电子有限公司 一种液晶内构件级进模
CN107599062B (zh) * 2015-07-30 2019-07-26 扬州广菱电子有限公司 一种段差成型模具

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3321925A1 (de) † 1982-06-16 1983-12-22 Osrodek Badawczo-Rozwojowy Podstaw Technologii i Konstrukcji Maszyn, Warszawa Hydraulische presse, insbesondere zum glattschneiden
EP0402800A1 (fr) † 1989-06-14 1990-12-19 L. SCHULER GmbH Jumelle de pression dans l'appareil d'emboutissage d'une presse
DE4104136A1 (de) † 1991-01-06 1992-09-10 Dieffenbacher Gmbh Maschf Hydroelastische tiefzieheinrichtung
DE4122128A1 (de) † 1991-07-04 1993-01-07 Dieffenbacher Gmbh Maschf Hydroelastische tiefzieheinrichtung
DE19751035A1 (de) † 1997-11-18 1999-05-27 Forschungsges Umformtechnik Verfahren und Vorrichtung zum Umformen eines Werkstückes unter Einwirkung eines Druckmediums

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783728A (en) * 1951-09-12 1957-03-05 Lake Erie Engineering Corp Apparatus for pressing sheet metal shapes
DE1240801B (de) 1961-07-07 1967-05-24 Siemens Elektrogeraete Gmbh Vorrichtung zum hydraulischen Tiefziehen
US3668914A (en) * 1969-12-31 1972-06-13 Bogdan Vyacheslavovich Voitsek Method of stamping metal convex articles from sheets
FR2443888A1 (fr) * 1978-12-11 1980-07-11 Pechiney Aluminium Emboutissage en matrice liquide
JPS60133933A (ja) * 1983-12-21 1985-07-17 Honda Motor Co Ltd プレス成形法
US5644943A (en) * 1996-04-22 1997-07-08 Franke Inc. Method for forming a seamless stainless steel sink bowl with a grid ledge and product
DE19819950C2 (de) * 1997-05-12 2001-08-09 Konrad Schnupp Umformpresse zum Innenhochdruckumformen und/oder Außenhochdruckumformen
DE19724767B4 (de) * 1997-06-12 2005-02-03 Forschungsgesellschaft Umformtechnik Mbh Verfahren zum hydromechanischen Tiefziehen und zugehörige Einrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3321925A1 (de) † 1982-06-16 1983-12-22 Osrodek Badawczo-Rozwojowy Podstaw Technologii i Konstrukcji Maszyn, Warszawa Hydraulische presse, insbesondere zum glattschneiden
EP0402800A1 (fr) † 1989-06-14 1990-12-19 L. SCHULER GmbH Jumelle de pression dans l'appareil d'emboutissage d'une presse
DE4104136A1 (de) † 1991-01-06 1992-09-10 Dieffenbacher Gmbh Maschf Hydroelastische tiefzieheinrichtung
DE4122128A1 (de) † 1991-07-04 1993-01-07 Dieffenbacher Gmbh Maschf Hydroelastische tiefzieheinrichtung
DE19751035A1 (de) † 1997-11-18 1999-05-27 Forschungsges Umformtechnik Verfahren und Vorrichtung zum Umformen eines Werkstückes unter Einwirkung eines Druckmediums

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"Blech Rohre Profile" Seiten 28,29 06/99 †
"Produktion, Die Wochenzeitung für das Technische Management" Seiten 36,37 04/99 †
"Werkstatt und Betrieb" Seiten 84,85 03/99 †

Also Published As

Publication number Publication date
CA2312435A1 (fr) 2000-12-23
ES2167301T3 (es) 2002-05-16
US6481256B1 (en) 2002-11-19
ES2167301T5 (es) 2008-01-16
CA2312435C (fr) 2006-04-25
DE50000026D1 (de) 2001-12-06
EP1063028B1 (fr) 2001-10-31
EP1063028A1 (fr) 2000-12-27
DE19928422A1 (de) 2000-12-28

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