EP1075882A2 - Système de verrouillage pour des presses à entraínement hydraulique - Google Patents

Système de verrouillage pour des presses à entraínement hydraulique Download PDF

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Publication number
EP1075882A2
EP1075882A2 EP00116350A EP00116350A EP1075882A2 EP 1075882 A2 EP1075882 A2 EP 1075882A2 EP 00116350 A EP00116350 A EP 00116350A EP 00116350 A EP00116350 A EP 00116350A EP 1075882 A2 EP1075882 A2 EP 1075882A2
Authority
EP
European Patent Office
Prior art keywords
locking device
forming
press
bolt
locking
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
EP00116350A
Other languages
German (de)
English (en)
Other versions
EP1075882A3 (fr
EP1075882B1 (fr
Inventor
Ulrich Hermann
Joachim Beyer
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
Application filed by Mueller Weingarten AG filed Critical Mueller Weingarten AG
Publication of EP1075882A2 publication Critical patent/EP1075882A2/fr
Publication of EP1075882A3 publication Critical patent/EP1075882A3/fr
Application granted granted Critical
Publication of EP1075882B1 publication Critical patent/EP1075882B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/025—Means for controlling the clamping or opening of the moulds
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/039—Means for controlling the clamping or opening of the moulds

Definitions

  • the invention relates to hydraulic presses for high pressure forming, such as external or internal high pressure forming, and in particular that Locking or locking system of these presses.
  • the proposed locking concept enables the construction of Presses with a comparatively low overall height and weight high bending stiffness of the upper beam.
  • Another advantage consists in the short locking and unlocking times by the appropriate design of the bars.
  • Retractable bars or distances are known, their function is Safe guard locking of tools in which a forming process is carried out Use of medium under high pressure takes place. The one for opening and closing of the tool required pressure-operated cylinders are therefore not affected by high Forming forces loaded.
  • DE 196 07 257 A1 or DE 198 19 950 A1 corresponding retractable latches are disclosed.
  • EP 0 665 072 B1 shows EP 0 665 072 B1 in which the locking in the manner of a Bayonet lock is pivotally arranged.
  • the invention is based on the object To propose locking system, which at low Use of material in operative connection with the upper beam a system high rigidity.
  • This task is based on a press after the Preamble of claim 1, by the characterizing features of claim 1 solved.
  • the core of the invention is based on the addition the heights of retractable bars and vertical top beam walls the favorable influence of the Height to the moment of inertia and section modulus harness.
  • the chosen position of the retractable is also an advantage Bars, namely the space that is used after the Close the tool between the upper spar and the ram single-acting presses are created.
  • Bars namely the space that is used after the Close the tool between the upper spar and the ram single-acting presses are created.
  • drawing presses both the free space between Oberholm and Ziestössel, as well as the free space used between the upper strut and the sheet holder for the transom height become.
  • the Upper spar of comparably low height which also makes a favorable overall height of the press is achievable.
  • Essential for The beneficial effect of the latch is that it extends is provided over the entire length of the ram and thus one Deformation is minimized.
  • the bars can thereby from one piece or from adding up individual pieces consist.
  • the proposed solution almost intends to To achieve stiffness of a crosshead, the total height of which the bar height would be added.
  • the total tool height is kept constant and thus a always the same closing stroke of the press.
  • the constructive design of the bolt variable closing strokes possible For example, interconnected in height graduated latches are used and the locking and The unlocking path is then also variable. Thus e.g. with a smaller closing stroke, a lower bolt height H2 be retracted.
  • Figure 1 shows a single-acting press 1, i. H. this The press only has a forming or drawing ram.
  • the shown press 1 is for forming using a Medium that is under high pressure is provided.
  • Known Procedures are exemplary the interior (IHU) or High pressure forming (AHU),
  • the press 1 consists of a Lower spar 2 with table top 3, forming ram 4, upper spar 5, Stand 6 and the connecting the entire press and prestressing anchor with nuts 7.
  • On the table top 3 that is Lower tool 8 on the forming ram 4 is the upper tool 9 attached.
  • Known compensation or wedge plates 15 are used for Setting constant total tool heights.
  • Connected to the Forming ram 4 is or are the drive cylinder 10.
  • the actual locking cylinders 12 are located between the lower beam 2 and table top 3.
  • the press is closed and the bolt 11 are retracted like this for the forming process is required.
  • the necessary for the forming High pressure connections for external high pressure forming (AHU) or Docking cylinders for hydroforming (IHU) are known and not shown in detail.
  • each Locking cylinder 12 can be selected as required. Ideally the arrangement is chosen so that the tool on each The same surface pressure is applied.
  • the tension of the Overall tool / press system ensures a safe Tumbler.
  • the drive cylinders are proposed in the Arrangement not loaded with the forming force.
  • Figure 2 shows the press in the same function as in Figure 1, i.e. Tool closed and press locked.
  • inventive idea is clearly recognizable, namely the vertical walls 13 with their height H1 of the upper spar 5 arranged that they are operatively connected to their lower end stand with the retracted bolts 11.
  • the height H2 of the bars 11 extends across the entire vertical range between Forming ram 4 and upper spar 5 through the tool closing path has become available.
  • the one for component rigidity the decisive overall height is thus the result of adding the Heights H2 and H1.
  • the latches 11 can, for example, on the forming ram 4 be arranged and individually, in pairs or all together connected and movable.
  • the displacement of the bolt 11 cause cylinder 14 in the exemplary embodiment.
  • FIG Another advantage of the invention is shown in FIG can see that the arrangement of latch 11 and upper beam walls 13 ram tipping is safe when the load is off-center avoids.
  • the sheet metal plunger 17 is in the form of a closed frame arranged around the inner plunger 4 and connected to the forming ram 4 via a driving system 18.
  • Cylinder 10 causes.
  • Figure 5 shows the press in closed and locked Presentation.
  • the shape-forming upper tool 9 is on Forming ram 4 attached.
  • cylinders 20 are adjustable sheet metal holder cylinders.
  • Active connection with frame 19 and lower tool 8 can during the forming process an optimal holding force for the board 21st be regulated.
  • the regulation can go away and / or time dependent.
  • the number of cylinders 20 and their Holding force is determined on a part-specific basis. Because of the selected drive concept, the cylinder 20 as Short stroke cylinders are executed.
  • the bars are 11 divided into those that the forming ram 4 and those that Lock sheet metal plunger 17. According to the forming process can thus, for example, first of all the sheet metal plunger 17 and the forming ram 4 can be locked with a time delay.
  • the function the guard locking and in particular the locking cylinder 12 corresponds to the description of FIG. 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Press Drives And Press Lines (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
EP00116350A 1999-08-10 2000-07-28 Système de verrouillage pour des presses à entraínement hydraulique Expired - Lifetime EP1075882B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19937310 1999-08-10
DE19937310 1999-08-10

Publications (3)

Publication Number Publication Date
EP1075882A2 true EP1075882A2 (fr) 2001-02-14
EP1075882A3 EP1075882A3 (fr) 2001-11-14
EP1075882B1 EP1075882B1 (fr) 2003-09-24

Family

ID=7917554

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00116350A Expired - Lifetime EP1075882B1 (fr) 1999-08-10 2000-07-28 Système de verrouillage pour des presses à entraínement hydraulique

Country Status (3)

Country Link
EP (1) EP1075882B1 (fr)
DE (2) DE50003807D1 (fr)
ES (1) ES2208194T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004004939A1 (fr) * 2002-07-04 2004-01-15 Klaus Katzfuss Dispositif de maintien en position fermee
WO2004071689A1 (fr) * 2003-02-14 2004-08-26 Daimlerchrysler Ag Systeme pour former des pieces sous pression interne elevee
EP2221126A1 (fr) * 2009-02-20 2010-08-25 Theodor Gräbener GmbH & Co. KG Dispositif de formage de pièces
US20250018637A1 (en) * 2023-07-11 2025-01-16 Barry RICHARDSON Superplastic forming machine and a method of superplastic forming

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10117578B4 (de) * 2001-04-07 2007-09-13 Müller Weingarten AG Ziehpresse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1108148B (it) * 1978-07-11 1985-12-02 Descrovi Mario Struttura di macchina a stampaggio
US4759280A (en) * 1986-12-29 1988-07-26 John T. Hepburn, Limited Hydraulic press with adjustable platen clearance
DE19819950C2 (de) * 1997-05-12 2001-08-09 Konrad Schnupp Umformpresse zum Innenhochdruckumformen und/oder Außenhochdruckumformen
DE19928422A1 (de) * 1999-06-23 2000-12-28 Mueller Weingarten Maschf Presse zum Außenhochdruckformen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004004939A1 (fr) * 2002-07-04 2004-01-15 Klaus Katzfuss Dispositif de maintien en position fermee
US7415863B2 (en) 2002-07-04 2008-08-26 Klaus Katzfuss Clamping device
CN100448563C (zh) * 2002-07-04 2009-01-07 克劳斯·卡茨富斯 闭合装置
WO2004071689A1 (fr) * 2003-02-14 2004-08-26 Daimlerchrysler Ag Systeme pour former des pieces sous pression interne elevee
EP2221126A1 (fr) * 2009-02-20 2010-08-25 Theodor Gräbener GmbH & Co. KG Dispositif de formage de pièces
WO2010094383A3 (fr) * 2009-02-20 2010-11-11 Theodor Gräbener GmbH & Co. KG Dispositif de réalisation de pièces moulées
US8739592B2 (en) 2009-02-20 2014-06-03 Theodor Graebener Gmbh & Co. Kg Device for the production of molded parts
US20250018637A1 (en) * 2023-07-11 2025-01-16 Barry RICHARDSON Superplastic forming machine and a method of superplastic forming

Also Published As

Publication number Publication date
EP1075882A3 (fr) 2001-11-14
ES2208194T3 (es) 2004-06-16
DE10036779A1 (de) 2001-03-15
EP1075882B1 (fr) 2003-09-24
DE50003807D1 (de) 2003-10-30

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