EP1262255B1 - Machine pour le formage de tôles - Google Patents

Machine pour le formage de tôles Download PDF

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Publication number
EP1262255B1
EP1262255B1 EP02007969A EP02007969A EP1262255B1 EP 1262255 B1 EP1262255 B1 EP 1262255B1 EP 02007969 A EP02007969 A EP 02007969A EP 02007969 A EP02007969 A EP 02007969A EP 1262255 B1 EP1262255 B1 EP 1262255B1
Authority
EP
European Patent Office
Prior art keywords
sheet
metal
parts
metal forming
base support
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
EP02007969A
Other languages
German (de)
English (en)
Other versions
EP1262255A1 (fr
Inventor
Klaus Sammer
Bernhard Knischeck
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1262255A1 publication Critical patent/EP1262255A1/fr
Application granted granted Critical
Publication of EP1262255B1 publication Critical patent/EP1262255B1/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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/14—Particular arrangements for handling and holding in place complete dies
    • 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
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/04—Movable or exchangeable mountings for tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds

Definitions

  • the invention relates to a sheet metal forming machine, and in particular a drawing press for mass production of large-scale body parts, according to the preamble of patent claim 1.
  • the upper and the lower tool consist of an integrally formed as a hollow cast part molding (punch and die), which is mounted replaceable directly on the press table or on the press ram.
  • the press table and the press ram according to US-A-3 702 560 are equipped with quick-acting closures that can be individually adapted to different sized moldings, and according to WO 00 09276 A are box-shaped for height compensation between the molding and press table or press ram arranged spacers assembled from individual elements.
  • the object of the invention is to provide a sheet metal forming machine of the type mentioned in such a way that the production cost for the istober- and -untermaschine is substantially reduced.
  • the use of base carriers which are formed independently of the shaped part and which can be used in a standardized, reusable design for a multiplicity of differently shaped stamp-specific punches or dies simplifies not only the transport, the stackability and the replacement of the individual tool assemblies. but especially in connection with the massive steel construction of the moldings, which - unlike moldings in cast and / or ribbed construction - a trouble-free post-processing and adaptation of the forming tool surfaces to changed sheet metal part geometries is made possible, the planning and investment costs for the tool side Reduced assembly to a considerable extent.
  • the base support are provided in an advantageous embodiment of the invention according to claim 2 molding part with raster arranged mounting points, while the corresponding attachment points are positioned on the molding shape specific, but taking into account the grid.
  • the sheet holder in a change in the sheet metal geometry thereby with little effort, namely only by reworking its clamping surface, reusable that he also made of a solid steel block and formed on the side of the associated base support independent of sheet metal and slidably is.
  • the base support for manufacturing reasons are preferably designed as castings, and the moldings and / or blank holder are surface-finished on the Blechform- or clamping surfaces, whereby a high processing quality is guaranteed even for high-strength steel sheets.
  • Fig. 1 shows a drawing press with a hydraulically operated press ram 1, a press table 2 and arranged below the press table 2, also hydraulically operated lifting plate 3, which is occupied in uniformly dense distribution with the press table 2 by cross-pressure pin 4 for sheet holder actuation.
  • the drawing press of conventional construction.
  • the lower tool 5 and the upper tool 6 of the drawing press form a uniform, as a whole transportable and storable, on the press table 2 or press ram 1 interchangeably clamped assembly and each consist of a base support 7 and 8, attached to this molding, so a stamp While the base support 7, 8 are manufactured as ribbed parts, the mold parts 9, 10 and the sheet holder 11 are made of solid steel blocks and at their forming tool surfaces 12, 13 and the clamping surface 14 of the sheet metal holder 11 surface-finished.
  • the base support 7, 8 regardless of the spatial shape of the mold parts 9, 10 and the sheet holder 11 and formed due to their standardized design for a variety of different stamp 9 and plate holder 11 or matrices 10 usable.
  • the base support 7, 8 are each provided with grid-like, uniformly distributed threaded holes 16, while the corresponding counterbores 17 on the punch 9 and the die 10 depending on the spatial shape of the molding 9, 10 different, but respecting the pitch of the threaded bores 16th are positioned so that various shaped moldings 9, 10 can be permanently screwed to the associated base support 7, 8.
  • the exact positioning of the mold parts 9, 10 on the base support 7 and 8 is effected by - not shown - dowel pins and holes.
  • guide surfaces 18 corresponding to one another are formed on the basic carriers 7, 8, which take over the mutual centering of the mold parts 9, 10 during the press stroke. Furthermore, the blank holder 11 is adjusted on its outer contour regardless of its sheet-metal-specific clamping and mecanic lakegestalt to the standardized basic carrier geometry and Hubzentritation also with guide surfaces 19 which cooperate with corresponding mating surfaces 20 on the base support 7, provided.
  • the lifting operation of the sheet holder 11 is effected by the arranged on the lifting plate 3 pressure pin 4 with the interposition of plate holder specifically arranged on the underside of the sheet holder 11, guided in the base support 7 intermediate tappets 21.
  • the corresponding Receiving openings 22 in the base support 7 also here again raster uniformly distributed, so that the base support 7 for sheet metal holder 11 with respect to the grid dimension differently positioned intermediate plungers 21 is used.
  • the pitch of the receiving openings 22 corresponds to the distribution of the pressure pin 4 on the lifting plate 3, such that all the pressure pin 4 lifted during the upward stroke of the lifting plate 3 on the press table side support surface of the base support 7 and of these then the sheet holder 11 actuated solely by the plate holder specific arrangement of Intermediate plunger 21 can be selected without having to be removed in a sheet holder holder excess pressure pin 4 or missing to be completed.

Landscapes

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

Claims (6)

  1. Machine pour le formage de tôles, notamment pour la production en série d'éléments bruts de carrosserie, comportant des parties de machine supérieure et inférieure mobiles en course l'une par rapport à l'autre et des supports de base respectivement fixés à celles-ci de manière interchangeable et destinés aux éléments de formage pourvus de surfaces de formage de tôles dirigées l'une vers l'autre,
    caractérisée en ce que
    les supports de base (7, 8) sont conçus indépendamment de la forme dans l'espace des éléments de formage (9, 10) et les éléments de formage sont fabriqués à partir de blocs d'acier massif comportant des surfaces de formage de tôles (12, 13) intégrées à ceux-ci.
  2. Machine pour le formage de tôles selon la revendication 1,
    caractérisée en ce que
    les supports de base (7, 8) sont pourvus, du côté des éléments de formage, de points de fixation (16) disposés sous forme de trame et les points de fixation (17) correspondants sur l'élément de formage (9, 10) sont disposés suivant une certaine distance spécifique à l'élément de formage conformément aux dimensions de trame des supports de base.
  3. Machine pour le formage de tôles selon la revendication 1 ou 2, comportant un serre-tôle qui englobe l'élément de formage et est de conception spécifique à l'élément de tôle au niveau de sa surface d'ablocage,
    caractérisée en ce que
    le serre-tôle (11) est conçu indépendamment de l'élément de formage sur les côtés du support de base (7) associé et est guidé en coulissement sur ceux-ci et est également fabriqué, en incluant la surface de serrage (14), à partir d'un bloc d'acier massif.
  4. Machine pour le formage de tôles selon l'une quelconque des revendications précédentes, comportant une plaque de levage entraînée indépendamment des éléments de la machine et qui comportant, dans la position d'avancée de la plaque de levage, des tiges poussoirs qui s'engagent dans des ouvertures de logement du support de base correspondantes et qui pressent le serre-tôle sur l'élément de tôle par des coulisseaux intermédiaires,
    caractérisée en ce que
    des ouvertures de logement (22) correspondantes, pratiquées dans le support de base, sont associées à toutes les tiges poussoirs (4) réparties uniformément dans la zone de la surface d'appui du support de base (7) située du côté des éléments de la machine, parmi lesquelles celles ayant été choisies pour la mise en course du serre-tôle (11) sont activées par l'agencement de coulisseaux intermédiaires (21) spécifique au serre-tôle.
  5. Machine pour le formage de tôles selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    les supports de base (7, 8) sont des pièces moulées et les éléments de formage (9, 10) et/ou les serre-tôle (11) ont des surfaces de formage de tôles ou des surfaces de serrage (12, 13, 14) affinées.
  6. Machine pour le formage de tôles selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    au moins un des éléments de formage (9) peut être positionné en hauteur au moyen d'une console en acier (23) mise en place entre celui-ci et le support de base (7) apparenté.
EP02007969A 2001-05-23 2002-04-10 Machine pour le formage de tôles Expired - Lifetime EP1262255B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001125083 DE10125083A1 (de) 2001-05-23 2001-05-23 Blechumformmaschine
DE10125083 2001-05-23

Publications (2)

Publication Number Publication Date
EP1262255A1 EP1262255A1 (fr) 2002-12-04
EP1262255B1 true EP1262255B1 (fr) 2006-09-06

Family

ID=7685823

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02007969A Expired - Lifetime EP1262255B1 (fr) 2001-05-23 2002-04-10 Machine pour le formage de tôles

Country Status (2)

Country Link
EP (1) EP1262255B1 (fr)
DE (2) DE10125083A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005048749A1 (de) * 2005-10-10 2007-04-12 Wilhelm Karmann Gmbh Presse für eine Bearbeitung eines Werkstücks
DE102007016262A1 (de) 2007-04-04 2008-10-16 Wilhelm Karmann Gmbh Presse
CN102896217A (zh) * 2012-09-17 2013-01-30 芜湖世达模具有限公司 一种钣金件冲压模具及其安装方法
CN102886433A (zh) * 2012-09-17 2013-01-23 芜湖世达模具有限公司 一种钣金件冲压模具
CN102896234A (zh) * 2012-09-17 2013-01-30 芜湖世达模具有限公司 一种模具安装支架及其固定方法
DE102018215947B3 (de) * 2018-09-19 2020-03-12 Audi Ag Großwerkzeug mit zwei Werkzeughälften und Verfahren zur Positionierung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3150845A1 (de) * 1981-02-27 1982-09-30 Mitsubishi Denki K.K., Tokyo Verfahren zur herstellung einer pressform
FR2611551A1 (fr) * 1987-02-24 1988-09-09 Dassaud Fabien Procede de traitement de matrice d'estampage en vue d'accroitre leur duree de vie

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3702560A (en) * 1971-05-05 1972-11-14 Rohr Industries Inc Quick replacement mechanism for mounting dies in press
US4254999A (en) * 1979-09-04 1981-03-10 Davidson James D Die shoes with standard interchangable components and method for interchangability
DE3623188C1 (en) * 1986-07-10 1987-09-10 Daimler Benz Ag Working method for the deep-drawing of metal sheets, and a deep-drawing press which carries out this method
GB2340425A (en) * 1998-08-13 2000-02-23 Rover Group Die support for a press tool

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3150845A1 (de) * 1981-02-27 1982-09-30 Mitsubishi Denki K.K., Tokyo Verfahren zur herstellung einer pressform
FR2611551A1 (fr) * 1987-02-24 1988-09-09 Dassaud Fabien Procede de traitement de matrice d'estampage en vue d'accroitre leur duree de vie

Also Published As

Publication number Publication date
DE10125083A1 (de) 2002-12-12
EP1262255A1 (fr) 2002-12-04
DE50208045D1 (de) 2006-10-19

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