EP1063028B1 - Presse pour hydroformage extérieur - Google Patents

Presse pour hydroformage extérieur Download PDF

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Publication number
EP1063028B1
EP1063028B1 EP00111618A EP00111618A EP1063028B1 EP 1063028 B1 EP1063028 B1 EP 1063028B1 EP 00111618 A EP00111618 A EP 00111618A EP 00111618 A EP00111618 A EP 00111618A EP 1063028 B1 EP1063028 B1 EP 1063028B1
Authority
EP
European Patent Office
Prior art keywords
press
external
cylinder
tool
hydroforming
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
EP1063028B2 (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 one Forming press according to the process of External high pressure forming works according to the preamble of claim 1, which is due to the proposed arrangement of the drive and forming assemblies with a small number of functional steps Forming process and which is characterized by a compact stiff design. Furthermore, a Sheet holder system with a high flexibility at low Height proposed.
  • the invention has for its object a high press Propose rigidity for external high pressure forming, which enables a reduction of the process steps at which the liquid box can be arranged stationary and which via a freely selectable and needs-based Arrangement of the plate holder cylinder has.
  • the invention is based on the idea of arranging the Fluid cylinder to choose so that by a direct location in the Power flow a rigid and compact design is guaranteed.
  • the Sheet metal holding cylinders can be used as pure short stroke cylinders be carried out.
  • These short stroke cylinders are not in one rigid system arranged, but the number and their Arrangement is according to the requirements of the Forming process optimal for the respective workpieces selectable.
  • Corresponding couplable connections to the or energy-carrying lines are provided.
  • the working cylinders carrying the tool are directly in the Integrated plunger.
  • the regulation of the back pressure takes place in stationary fluid box instead, creating a fixed Piping is enabled, which is a high pressure operation represents another advantage.
  • a favorable energy balance due to the low required Oil quantities result from the common travel cylinder for rams and sheet metal holders and the use of the Short stroke cylinder for regulating the sheet metal holding force and the Building the maximum locking force. Since the short stroke cylinder Do not travel along the forming path, but only a stroke of a few Execute millimeters results in an inexpensive design with a low overall height. This is also an advantage, though multi-point support due to the workpiece geometry is required.
  • FIG. 1 shows the basic structure of the forming press, consisting of press stand 1, ram 2, sheet holder 3, Table 4, driving cylinder 5, working cylinder 6, short-stroke cylinder 7, lock 8, tool 9, liquid box 10 and Board 11.
  • Travel cylinder 5 has plunger 2 with sheet holder 3 so far lowered that the sheet metal holder 3 touches the circuit board 11.
  • a regulated pressure build-up takes place via the short-stroke cylinder 7 for the sheet holding force depending on that Forming process.
  • the number and arrangement of the short-stroke cylinders 7 is selected depending on the tool and the board. Determinants for the tool are e.g. the Tool size and the tool contour that are on the board among other things mechanical material properties, Forming speeds and tribological processes are important.
  • Short stroke cylinders 7 can be regulated individually or in groups be united.
  • the tool is moved to its lowest position 13, which e.g. is limited by stops and is shown in FIG. 3 Retractable tool distances 12 shown locked.
  • This lock is required to keep the pressure high to complete the forming process in the liquid box 10 is built to support safely.
  • This pressure will the workpiece in a kind of calibration in the tool contour pressed and shaped.
  • Short stroke cylinder 7 generates a maximum sheet holding force that secure clamping of the board or workpiece edge guaranteed.
  • the strains caused by these forces or compression of the press components are more advantageous Way through the arrangement and stroke of the short-stroke cylinder 7th balanced.
  • Fluid couplings 16 serve to connect the each required 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.
  • Figure 2 shows the situation at bottom dead center.
  • the pressure medium 14 with a maximum pressure applied in one plasticizing the final process Component geometry is formed.
  • a flow of the clamped edge of the board is with this Calibration process is undesirable and is carried out by the Short stroke cylinders 7 generated maximum locking force safely prevented.
  • the great forces that arise in this phase are by interacting with the retracted Ram locks 8 and tool distances 12 in one type closed system added.
  • the Compressibility of the fluid medium essentially in this Concept is excluded.
  • Figure 3 is a sectional view showing an arrangement of the Short stroke cylinder 7 shows. As already mentioned, both the Arrangement and number of short-stroke cylinders 7 accordingly the component is freely selectable.
  • the movable tool distances are with 12 and the associated shift cylinder with 15 designated. The tool distances are in the position shown 12 extended, i.e. 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) peuvent être entraínés en commun, 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 entraínés 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 true EP1063028B1 (fr) 2001-10-31
EP1063028B2 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10202411A1 (de) * 2002-01-22 2003-07-31 Thyssenkrupp Ag Wandpannel für eine Vorhangfassade und Verfahren zur Herstellung von Wandpaneelen

Families Citing this family (12)

* 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
DE10110162B4 (de) * 2001-03-02 2006-07-27 Audi Ag Umformwerkzeug zum hydromechanischen Tiefziehen von Werkstücken aus Blechzuschnitten
DE10110161A1 (de) * 2001-03-02 2003-01-02 Audi Ag Umformwerkzeug zum hydromechanischen Tiefziehen von Werkstücken aus Blechzuschnitten
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
CN104985638B (zh) * 2015-07-30 2017-11-10 扬州广菱电子有限公司 一种撕裂式段差成型模具

Family Cites Families (13)

* 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
PL136343B1 (en) † 1982-06-16 1986-02-28 Edmund Nowak Hydraulic press in particular for smooth cutting
JPS60133933A (ja) * 1983-12-21 1985-07-17 Honda Motor Co Ltd プレス成形法
DE3919372A1 (de) † 1989-06-14 1990-12-20 Schuler Gmbh L Druckwange im ziehapparat einer presse
DE4100206A1 (de) † 1991-01-06 1992-07-09 Dieffenbacher Gmbh Maschf Hydroelastische tiefzieheinrichtung
DE4122128A1 (de) † 1991-07-04 1993-01-07 Dieffenbacher Gmbh Maschf Hydroelastische tiefzieheinrichtung
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
DE19751035C2 (de) † 1997-11-18 2000-09-07 Forschungsges Umformtechnik Verfahren und Vorrichtung zum Umformen eines Werkstückes unter Einwirkung eines Druckmediums

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10202411A1 (de) * 2002-01-22 2003-07-31 Thyssenkrupp Ag Wandpannel für eine Vorhangfassade und Verfahren zur Herstellung von Wandpaneelen

Also Published As

Publication number Publication date
ES2167301T5 (es) 2008-01-16
EP1063028B2 (fr) 2007-06-13
US6481256B1 (en) 2002-11-19
DE50000026D1 (de) 2001-12-06
CA2312435A1 (fr) 2000-12-23
EP1063028A1 (fr) 2000-12-27
DE19928422A1 (de) 2000-12-28
CA2312435C (fr) 2006-04-25
ES2167301T3 (es) 2002-05-16

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