EP2488315A1 - Procédé et dispositif pour la déformation complexe d'une tôle à l'aide de corps de rotation - Google Patents

Procédé et dispositif pour la déformation complexe d'une tôle à l'aide de corps de rotation

Info

Publication number
EP2488315A1
EP2488315A1 EP10771063A EP10771063A EP2488315A1 EP 2488315 A1 EP2488315 A1 EP 2488315A1 EP 10771063 A EP10771063 A EP 10771063A EP 10771063 A EP10771063 A EP 10771063A EP 2488315 A1 EP2488315 A1 EP 2488315A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
sheet
complex forming
rotary bodies
forming
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.)
Withdrawn
Application number
EP10771063A
Other languages
German (de)
English (en)
Inventor
Günter Eilers
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.)
Ostseestaal GmbH and Co KG
Original Assignee
Ostseestaal GmbH and Co KG
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 Ostseestaal GmbH and Co KG filed Critical Ostseestaal GmbH and Co KG
Publication of EP2488315A1 publication Critical patent/EP2488315A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/007—Taper rolling, e.g. leaf springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/16—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons turbine blades; compressor blades; propeller blades

Definitions

  • the invention relates to a method for forming a sheet
  • the invention relates to a device with which the method can be performed.
  • Material thickness and shape are the most important parameters besides the material quality.
  • Bending presses have long been known in the metalworking industry. As an example, document DE 60 2004 002 860 T2 can be cited.
  • the disadvantage is that can be finished with the bending presses only curved sheets. A change in the component thickness is not possible.
  • a workpiece is provided by rolling with defined, locally limited and arbitrarily arranged variable material cross sections.
  • the rollers are designed in their surface so that certain parts of the workpiece are subjected to different degrees of deformation.
  • thickness profiled one-piece sheet metal parts disclosed. It is characterized in that a deformation is carried out in regions and by a defined superimposition of the forming regions
  • Processing process are fed, in which unwanted
  • the object of the invention is to provide a method with which
  • a sheet in each case can be subjected to a complex transformation in a single working process, rotational bodies being used.
  • the transformation results in a final product which has different material thicknesses over its length and width and can be characterized by one-axis or multi-axial curvature which run the same or in opposite directions.
  • Another object of the invention is a device
  • At least two rotary body gradually bring a pressure and possibly additionally acted upon with heat heat workpiece in the desired shape.
  • Shaped bodies are provided, wherein on the one molded body, the top of an end product is shown, which from the zu
  • processing semi-finished product is to arise, and on the other shaped body according to the underside of this end product is shown.
  • the surface structure of these bodies can be very complex. It can, for example, reflect continuous transitions between areas of different material thickness of the final product, but it can also sudden sudden jumps in material thickness in the form of sharp edges
  • the shaped bodies designed as described are now aligned with each other in a predetermined zero position. Depending on the design thickness of the final product, the forming process is started.
  • the transformation process itself is divided into transformation sections. These are defined either by a fixed angle or a range of the same material thickness given by the end product.
  • the forming sections in turn are divided into one or more rotation stitches, which avoid unwanted material movements during the forming process and are acted upon by a previously defined working direction of the deformation pressure. If this pressure on the semifinished product does not lead to the desired transformation target of this transformation section, the process is repeated rotationally n times until the transformation target has been reached. Only then will the transformation process be in the following
  • Reshaping sections continued. When the product is finished, it can be removed from the device. But it is also possible that further process steps take place as desired on the final product. Thus, e.g. equal to a trimming or an undercut done.
  • the forming as a function of the temperature in cold, warm or hot forming takes place as required by the requirements of the final product. This is how certain can be Material properties are influenced by temperature.
  • the object is achieved by a combination of two or more bodies of revolution, which reflect the exact shape of the final product on their surfaces.
  • a synchronized drive system ensures that the propulsion of the workpiece and the rotational movement of the rotating body are always coordinated so that the end product with high
  • the device may be supplemented by other devices for trimming or undercut.
  • Fig. 1 is an oblique view of the device according to the invention
  • Fig. 2 is a side view of the device according to the invention in
  • FIG. 3 shows a side view of the device according to the invention transversely to the working direction
  • Equipment for trimming the workpiece Fig. 6 is a plan view of a molded article with cut data Fig. 7 side view of a machined with the device
  • FIG. 8 shows a representation of the sections from FIG. 5
  • FIG. 9 Top view of a machined with the device
  • FIG. 10 shows a representation of the section A-A from FIG. 7
  • Fig. 1 1 representation of the section B-B of FIG. 7th
  • Fig. 12 oblique view of a machined with the device
  • FIGS. 1 to 6 have in common that the moldings (1) and (2) are shown with a greatly simplified shaping surface (17). However, it is conceivable that within the shaping surface (17) of the molded body (1) and (2) paragraphs are present, so that cracks in the material thickness of the workpiece can be achieved. In addition, it is provided that instead of the shaped bodies (1) and (2) shown in a simplified manner, non-axisymmetric shaped bodies (1) and (2) are applied to the
  • Recording waves (3) and (4) are arranged.
  • the only prerequisite is that the two moldings (1) and (2) are coordinated so that the intended shape of the workpiece (5) after the end of
  • Fig. 1 shows an oblique view of the device according to the invention.
  • the main component of the device are rotary bodies, which primarily comprise shaped bodies (1) or (2) which are mounted on receiving shafts (3) or (4).
  • the first take-up shaft (3) and the second take-up shaft (4) are movable relative to each other, so that between the first mold body (1) which is fixed on the first take-up shaft (3), and the second mold body (2) on the second recording shaft (4) is fixed, a gap is formed, through which the workpiece (5) can be inserted into the device.
  • the first molded body (1) is designed in its shape-giving surface (17) so that starting from the beginning of the construction intermediate piece (6) around the shaped body (1) to the end of the construction intermediate piece (6), the surface (17) of this first shaped body (1), which has been unrolled in a plane, precisely the desired upper side of the end product which is produced from the workpiece (6). 5) should arise, corresponds.
  • Construction spacer (7) around the second molded body (2) around the end of the construction intermediate piece (7) correspond exactly to the desired bottom of the final product.
  • the design-related construction spacers (6) and (7) are exactly opposite.
  • this is brought by the about the rotation axes (8) rotatable moldings by means of pressure and / or temperature to the correct strength and provided with a curvature in at least one direction. Only under certain conditions can from the workpiece (5) into a
  • the workpiece is gradually brought to the desired thickness.
  • the workpiece (5) is only then subjected to pressure when a propulsion takes place in the working direction (16). Therefore, the rotating body need not have shown here, synchronized drive systems. If within a
  • Workpiece (5) is pressurized. The same applies to further rotation stitches (15) of the workpiece (5).
  • Fig. 2 shows the device according to the invention in a side view, in which case the view was selected in the working direction (16).
  • the rotating about the axes of rotation recording waves (3) and (4) wear the Shaped body (1) or (2).
  • the on the moldings (1) and (2) located forming surfaces (17) are designed such that the inserted into the device workpiece (5) receives the desired shape, the circumference of the molded body (1) or (2) to the width of the respective construction intermediate piece (6) or (7) is longer than the end product.
  • Fig. 3 also shows a side view, this represents the
  • Construction spacer (6) or (7) inserted that the
  • Forming section (15) repeatedly to a starting point must be reset without the workpiece (5) is pressurized.
  • Fig. 5 shows an almost identical to Fig. 1 representation, except that here additional Beklamungsvortechniken (18) are shown.
  • Fig. 6 is a shaped body to see. The sections given thereto
  • a workpiece (5) can be seen, which is not only subjected to a simple change in thickness. Is centered on the workpiece - as well as the illustrations in Figs. 10 and 1 1 can be removed, which reproduce the sections indicated in Fig. 9 - a wave-shaped
  • Thickening (9) in the working direction and a wave-shaped thickening (10) can be seen transversely to the working direction.
  • several material thickness jumps in the form of edges (1 1) are transverse to the workpiece in the workpiece
  • the workpiece (5) shown in FIG. 9 also has curvatures in the longitudinal direction.
  • the shaped bodies used for processing this workpiece (5) accordingly have an approximately S-shaped forming surface (17), the corresponding

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Forging (AREA)

Abstract

L'invention concerne un procédé pour la déformation d'une tôle à l'aide de corps de rotation. A cet effet, deux arbres de logement (3, 4) espacés l'un de l'autre sont dotés de corps de moulage (1, 2), les corps de moulage étant conçus dans leur surface de telle sorte qu'ils montrent une représentation du produit final. Ensuite, les corps de moulage sont orientés de telle sorte qu'ils se font face dans des positions zéro, la pièce (5) insérée prédéfinissant cette position nulle avec une arête extérieure. Enfin, la pièce est soumise à l'intérieur d'un premier tronçon de déformation, en cas d'avancement, à une sollicitation avec de la pression d'une déformation en ce sens que la pièce est modifiée dans son épaisseur et/ou incurvée. En cas d'avancement de la pièce dans le sens contraire au sens du travail (16), on renonce à une sollicitation avec de la pression. Cette opération est répétée jusqu'à ce que la pièce ait atteint l'épaisseur souhaitée. Pour d'autres parties de déformation, le procédé de déformation est répété, le nombre des parties de déformation étant dépendant du nombre et de la nature des variations d'épaisseur et de courbure souhaitées. Parallèlement à cela, l'invention concerne un dispositif pour la mise en oeuvre dudit procédé.
EP10771063A 2009-10-13 2010-10-11 Procédé et dispositif pour la déformation complexe d'une tôle à l'aide de corps de rotation Withdrawn EP2488315A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009049297A DE102009049297B3 (de) 2009-10-13 2009-10-13 Verfahren und Vorrichtung zur komplexen Umformung eines Bleches mit Hilfe von Rotationskörpern
PCT/EP2010/065170 WO2011045261A1 (fr) 2009-10-13 2010-10-11 Procédé et dispositif pour la déformation complexe d'une tôle à l'aide de corps de rotation

Publications (1)

Publication Number Publication Date
EP2488315A1 true EP2488315A1 (fr) 2012-08-22

Family

ID=43416978

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10771063A Withdrawn EP2488315A1 (fr) 2009-10-13 2010-10-11 Procédé et dispositif pour la déformation complexe d'une tôle à l'aide de corps de rotation

Country Status (4)

Country Link
US (1) US20120198902A1 (fr)
EP (1) EP2488315A1 (fr)
DE (1) DE102009049297B3 (fr)
WO (1) WO2011045261A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103600012A (zh) * 2013-10-19 2014-02-26 沈阳黎明航空发动机(集团)有限责任公司 一种无榫头深度端弯叶片的制备方法

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DE655100C (de) * 1938-01-08 Hans Schuster Dipl Ing Walzwerk fuer das Pilgerverfahren zur Erzeugung von duennen Baendern und Blechen aus einem dicken Ausgangswerkstueck
US3150707A (en) * 1961-04-27 1964-09-29 Howell Pat Apparatus for making metal building and building elements
US3452568A (en) * 1967-01-31 1969-07-01 Bernhard Vihl Apparatus for continuous forming of strip material
US3605184A (en) * 1969-03-14 1971-09-20 Cyclops Corp Rolling mill for producing longitudinally tapered sheet,plate and sections
DE7005237U (de) * 1970-02-14 1970-06-11 Beche Dipl Ing Hans Hydraulische gesenkschmiede-presse.
DE2221776C3 (de) * 1972-05-04 1980-01-24 Hoesch Ag, 4600 Dortmund Steuereinrichtung zum Verstellen der Bandbiegevorrichtung eines Schraubennah trohrwerkes
JPS5935844A (ja) * 1982-08-20 1984-02-27 Hitachi Ltd タ−ビン翼成形装置
DE19510121C2 (de) * 1995-03-21 1999-10-07 Rolf Wissner Verfahren zur Herstellung einer gekrümmten Wandung aus einem streifenförmigen Ausgangsmaterial mit parallelen Seitenkanten und parallelen Längskanten
DE10103487A1 (de) * 2001-01-26 2002-08-01 Volkswagen Ag Verfahren zur Herstellung eines großflächigen Gebildes an Kraftfahrzeugen und großflächiges Gebilde dazu
DE10113610C2 (de) * 2001-03-20 2003-04-17 Reiner Kopp Verfahren und Walzvorrichtung zur Ausbildung von dickenprofiliertem einstückigem Walzgut
US7021116B2 (en) * 2003-12-19 2006-04-04 Wilson Tool International, Inc. Press brake tooling technology

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011045261A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103600012A (zh) * 2013-10-19 2014-02-26 沈阳黎明航空发动机(集团)有限责任公司 一种无榫头深度端弯叶片的制备方法
CN103600012B (zh) * 2013-10-19 2015-10-07 沈阳黎明航空发动机(集团)有限责任公司 一种无榫头深度端弯叶片的制备方法

Also Published As

Publication number Publication date
WO2011045261A1 (fr) 2011-04-21
DE102009049297B3 (de) 2011-04-14
US20120198902A1 (en) 2012-08-09

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