EP2616198B1 - Dispositif et procédé pour fabriquer des profilés creux au moins partiellement fermés avec un temps de cycle réduit - Google Patents

Dispositif et procédé pour fabriquer des profilés creux au moins partiellement fermés avec un temps de cycle réduit Download PDF

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Publication number
EP2616198B1
EP2616198B1 EP11757596.9A EP11757596A EP2616198B1 EP 2616198 B1 EP2616198 B1 EP 2616198B1 EP 11757596 A EP11757596 A EP 11757596A EP 2616198 B1 EP2616198 B1 EP 2616198B1
Authority
EP
European Patent Office
Prior art keywords
partially
tool
shaped
forming
sheet
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.)
Not-in-force
Application number
EP11757596.9A
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German (de)
English (en)
Other versions
EP2616198A1 (fr
Inventor
Thomas Flehmig
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.)
ThyssenKrupp Steel Europe AG
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ThyssenKrupp Steel Europe 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.)
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Publication date
Application filed by ThyssenKrupp Steel Europe AG filed Critical ThyssenKrupp Steel Europe AG
Publication of EP2616198A1 publication Critical patent/EP2616198A1/fr
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Publication of EP2616198B1 publication Critical patent/EP2616198B1/fr
Not-in-force legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/003—Simultaneous forming, e.g. making more than one part per stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0815—Making tubes with welded or soldered seams without continuous longitudinal movement of the sheet during the bending operation
    • 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
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • B21D5/015—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments for making tubes
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means

Definitions

  • the invention relates to a device for producing at least partially closed hollow profiles from a board by a UO-forming with a tool set comprising a U-punch in a first mold half for producing an at least partially U-shaped board and a top die in a second mold half for forming a at least partially U-shaped board in an at least partially closed hollow profile.
  • the invention relates to a method for producing an at least partially closed hollow profile of a circuit board.
  • At least partially closed hollow sections are often used in the automotive industry to replace open and welded profiles.
  • the resulting from the complex shape number of forming steps precludes an economical way of manufacturing.
  • Standard UO forming requires at least two forming steps, with each forming step being implemented separately in one or more presses and passing the component between workstations. With a favorable design, although a finished part can be produced per press stroke, this device requires extensive tool sets as well as several robots or feeders for transporting the blanks or semi-finished blanks between the individual tools.
  • the first at least partially U-shaped formed board taken from the die and is introduced into the die for O-forming.
  • the present invention is therefore based on the object to provide a device and a method for producing at least partially closed hollow sections of a board, which ensures the production of corresponding profiles with a short cycle time and high process reliability.
  • the object is achieved by a generic device characterized in that the tool set in the axial direction of the produced at least partially closed hollow profile parallel to each other and are arranged one above the other in the closing direction of the mold halves, wherein a common Matrizenam is provided between the tool halves of the tool set, which comprises at least two identical, partially U-shaped dies for the tool set and the die holder is rotatable about its axial axis.
  • the arrangement of the tool set on top of one another and running in parallel allows the tool set to be closed with a single closing operation and, at the same time, a forming of a blank or a preformed blank can be carried out in both tool halves.
  • the rotatable around its axial axis die holder allows that the board does not have to be removed from the used for the U-forming at least partially U-shaped die, but can be positioned by rotation in the second mold half, then formed into an at least partially closed hollow profile to become.
  • the positioning of the at least partially U-shaped circuit board into the next tool half for O-forming or for producing an at least partially closed hollow profile can thus take place.
  • the rotatable Matrizenability requires this little equipment.
  • handling systems or robots and feeders are only necessary for inserting the board and the removal of the finished produced at least partially closed hollow profile.
  • the die receiving more than two at least partially U-shaped dies, wherein the number of dies is a multiple of two.
  • the matrix recording can therefore preferably four, six or contain, for example, eight U-dies, so that the die holder can simultaneously accommodate several boards to be formed.
  • the removal of the finished manufactured at least partially closed profiles can then be done easily without cycle time delay during or between the closing movements of the tool halves.
  • the die holder according to a further embodiment of the device in the closing direction of the tool halves is movable and optionally weight relieved.
  • the displaceability allows a simplification of the forming device, since a tool halves of the device can be formed stationary.
  • the optional weight reduction reduces the wear of the rotatable die holder, for example, in the required bearings of the bearing blocks.
  • the device can therefore be configured advantageously in that bearing blocks for rotatably supporting the die receiving and at least one Kernzugvorides are provided, wherein the at least one Kernzugvortechnische is optionally arranged on the bearing blocks.
  • the arrangement of the Kernzugvoriques on the bearing blocks of Matrizenage allows easy positioning of the Kernzugvortechnisch in the field of correspondingly performed O-forming to position the support core before forming or remove after forming from the at least partially closed hollow profile. It is also conceivable, however, an arrangement of Kernzugvortechnisch in the second mold half.
  • the U-punch is arranged below the upper die, wherein the U-punch optionally hold-down are assigned.
  • the arrangement of the U-punch below the upper die allows easy insertion of a board for performing the U-forming.
  • the optionally provided hold-downs in the first mold half allow a controlled insertion of the board during the U-forming and ensure, especially if they can be moved to the apex baseline of the U-punch of the first mold half, a further improved insertion of the board.
  • the at least partially U-shaped dies of the die receiving side walls the height of which is at least half of the maximum, rolled-out side wall length of the hollow profile to be produced.
  • the maximum unrolled side wall length of the hollow profile to be produced corresponds to the maximum length of a U-leg of the at least partially U-shaped formed board.
  • means for performing further operations on the at least partially U-shaped board or on the at least partially closed hollow profile may be provided, so that further work steps on the at least partially U-shaped board in the die holder before this is converted to at least partially closed hollow profile, can be performed. It is also conceivable to carry out the work steps after the forming of the at least partially U-shaped blank to form an at least partially closed hollow profile.
  • a support core can be positioned over a core pulling device in the at least partially U-shaped formed board, which is removed again prior to removal of the finished hollow section.
  • both a U-forming and an O-forming in the device is carried out simultaneously by only one closing operation of the mold half.
  • an at least partially closed hollow profile is completed with each closing process.
  • the cycle times of the method according to the invention are correspondingly low.
  • the equipment required to carry out the process is low, since only for the insertion of a flat board and the removal of the finished produced hollow profiles robot or feeder are needed.
  • the method according to the invention can be further improved by virtue of the die receptacle having four dies, which are at least partially U-shaped, and the die receptacle being rotated by 90 ° after each opening of the first and second mold halves. This ensures that the cycle times for rotation of the die receiving and positioning of an at least partially U-shaped formed board are reduced in the second mold half. In addition, a simple removal of the finished formed parts after the O-forming and the rotation of the Matrizenapplication is made possible by 90 °.
  • the at least partially U-shaped dies of the die receiving side slidable portions of the side walls inlet recesses which are optionally shifted when closing the mold halves of the tool set by the side walls of the upper die of the second mold half to the outside.
  • means for actively displacing the displaceable sections of the side walls can be dispensed with, for example, so that the device is further simplified.
  • the movable sections can, for example be spring loaded, so that they move back after opening the second mold half in its original position.
  • the method is further improved in that further work steps are performed on the at least partially U-shaped board or on the at least partially closed hollow profile in the die receiving.
  • Fig. 1 shows an embodiment of the apparatus for producing at least partially closed hollow sections of a circuit board in the open state.
  • the device 1 has a tool set 2, 5, which comprises a U-punch 3, which is arranged in the first mold half 4. Further, an upper die 6 is included, which is arranged for forming an at least partially U-shaped board in an at least partially closed profile in the second mold half 7. Furthermore, it can be seen that the tool set 2, 5 is parallel to each other and in the closing direction 8, the tool halves 4, 7 are arranged one above the other.
  • the die holder 9 comprises in the embodiment shown here four identical, at least partially U-shaped dies 10, which are arranged in a star shape around the axial axis 11 of the die holder 9.
  • the die holder 9 is rotatably mounted about its axial axis 11. About a here only schematically illustrated positioning drive 12, the die holder can be rotated.
  • a Kernzugvorraum 13 which is arranged in the region of the second mold half and allows the introduction of a support core in the reshaping at least partially U-shaped board or its removal after the forming process.
  • the support core used by the Kernzugvoroplasty 13 is not shown here.
  • the Kernzugvortechnische 13 is on bearing blocks 14, which are also shown here only schematically arranged.
  • means for weight relief 15, for example in the form of gas springs, are provided which hold the die holder 9 at a medium height level and allow a displacement of the die holder 9 in the closing direction of the tool set 2, 5.
  • Fig. 2 now shows the embodiment Fig. 1 likewise in a perspective schematic representation with an inserted board 16 and an at least partially U-shaped formed board 17.
  • the board 16 rests on the reaching to the apex baseline of the punch 3 downers 18 and therefore can be easily inserted and positioned in the device become.
  • Fig. 2 nor the directions of movement 8 of the second mold half 7 and the die holder 9 shown during the closing process.
  • the side walls of the U-shaped dies 10 have a height which is at least half of the maximum unrolled sidewall length of the hollow profile to be produced , So the length of the legs of the U-shaped formed board amounts.
  • slidable portions 19 are provided in the side walls, which serve for improved threading of the legs of the at least partially U-shaped board during the O-forming in the second mold half 7.
  • Fig. 3 now shows the device 1 in the closed state, ie with a closed tool set 2, 5. It can be seen that the board 16 has now been converted to an at least partially U-shaped board.
  • Fig. 3 are additionally shown in the not involved in the forming U-shaped dies 10 of the die holder 9 an at least partially U-shaped plate 20 and a finished molded at least partially closed hollow section 21, which from the U-forming or from the O-forming in the first tool half 4 respectively in the second tool half 7 after rotation of the female holder 9 by 90 ° counterclockwise result.
  • the die holder 9 is moved after the forming process in the closing direction together with the second mold half 7 upwards, but only to the extent that the die holder 9 is free to rotate. These are in Fig. 3 the directions of movement 22 of the tool half 7 and the die holder 9 are shown.
  • the finished molded, at least partially closed hollow profile 21 can be removed in a simple manner after the O-forming and a rotation of the die holder 9 by 90 ° counterclockwise from the U-die 10, for example using a corresponding robot. Due to the simple construction of the device according to the invention, it is thus possible to carry out a forming movement simultaneously two forming processes, a U-forming and an O-forming, and also to ensure easy removal of the finished products from the device.
  • the second mold half 7 comprises an upper die 6, whose side walls 6a and 6b press on the inlet rounded portions 23 of the displaceable portions 19 of the side walls of the at least partially U-shaped dies 10 of the die holder 9 during the closing operation.
  • the slidable portions 19 of the side walls are pressed outwards, for example, against a spring load, so that the legs of the still U-shaped board 17 thread into the upper die 6 of the second mold half 7, Fig.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Claims (12)

  1. Dispositif (1) pour fabriquer des profilés creux au moins partiellement fermés à partir d'un flan (16) par un formage en U-O avec un jeu d'outils (2, 5) comprenant un poinçon en U (3) dans une première moitié d'outil (4) pour produire un flan (17) au moins partiellement en forme de U et une matrice supérieure (6) dans une deuxième moitié d'outil (7) pour formage d'un flan (17) au moins partiellement en forme de U en un profilé creux au moins partiellement fermé,
    caractérisé en ce que
    l'ensemble d'outils (2, 5) passent parallèlement l'un à l'autre dans le sens axial du profilé creux au moins partiellement fermé à fabriquer et sont disposés l'un au-dessus de l'autre dans le sens de fermeture (8) des moitiés d'outil (4, 7) pour lequel un porte-matrices (9) commun étant prévu entre les moitiés d'outil (4, 7) du ensemble d'outils (2, 5) lequel comprend au moins deux matrices (10) identiques, partiellement en forme de U pour l'ensemble d'outils (2, 5) et le porte-matrices (9) pouvant tourner autour de son axe axial (11).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    le porte-matrices (9) présente plus de deux matrices (10) au moins partiellement en forme de U, le nombre de matrices étant un multiple de deux.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que
    le porte-matrices (9) est mobile dans le sens de fermeture des moitiés d'outil (4, 7) et est en option déchargé en poids.
  4. Dispositif selon au moins une quelconque des revendications 1 à 3,
    caractérisé en ce que
    des paliers (14) pour le montage pivotant du porte-matrices (9) et au moins un dispositif de tire-noyau (13) sont prévus et en ce que le au moins un dispositif de tire-noyau (13) est disposé sur les paliers (14).
  5. Dispositif selon au moins une quelconque des revendications 1 à 4,
    caractérisé en ce que
    le poinçon en U (3) est disposé en dessous de la matrice supérieure (6) est en ce que des serre-flans (18) sont affectés en option à un poinçon en U (3).
  6. Dispositif selon au moins une quelconque des revendications 1 à 5,
    caractérisé en ce que
    les matrices (10) au moins partiellement en forme de U du porte-matrices (9) présentent des parois latérales dont la hauteur est au moins la moitié de la longueur de paroi latérale maximale déroulée du profilé creux à fabriquer.
  7. Dispositif selon au moins une quelconque des revendications 1 à 6,
    caractérisé en ce que
    les parois latérales des matrices au moins partiellement en forme de U présentent des zones partielles (19) avec un arrondi d'entrée (23) qui sont mobiles vers l'extérieur.
  8. Dispositif selon au moins une quelconque des revendications 1 à 7,
    caractérisé en ce que
    des moyens sont prévus pour exécuter d'autres étapes de travail sur le flan au moins partiellement en forme de U ou sur le profilé creux au moins partiellement fermé.
  9. Procédé pour fabriquer un profilé creux au moins partiellement fermé en utilisant un dispositif selon au moins une quelconque des revendications 1 à 8 avec les étapes suivantes :
    - introduction d'un flan plan dans la première moitié d'outil,
    - formage du flan dans la première moitié d'outil en un flan au moins partiellement en forme de U par fermeture des moitiés d'outil du jeu d'outils,
    - ouverture des moitiés d'outil et rotation du porte-matrices de sorte qu'une matrice au moins partiellement en forme de U avec un flan au moins partiellement en forme de U est positionnée dans la deuxième moitié d'outil et une autre matrice en forme de U est positionnée dans la première moitié d'outil,
    - introduction d'un deuxième flan dans la première moitié d'outil,
    - fermeture des moitiés d'outil et formage simultané du flan partiellement en forme de U en un profilé creux au moins partiellement fermé dans la deuxième moitié d'outil et formage du flan introduit en un flan partiellement en forme de U dans la première moitié d'outil.
  10. Procédé selon la revendication 9,
    caractérisé en ce que
    le porte-matrices présente quatre matrices au moins partiellement en forme de U et le porte-matrices est tourné de 90° après ouverture des première et deuxième moitiés d'outil.
  11. Procédé selon la revendication 9 ou 10, caractérisé en ce que
    les parois latérales des matrices au moins partiellement en forme de U du porte-matrices présentent des zones partielles mobiles vers l'extérieur avec un arrondi d'entrée qui sont poussées vers l'extérieur lors de la fermeture des moitiés d'outil du ensemble d'outils par les parois latérales de la matrice supérieure de la deuxième moitié d'outil.
  12. Procédé selon au moins une quelconque des revendications 9 à 11,
    caractérisé en ce que
    d'autres étapes de travail sont exécutées dans le porte-matrices sur le flan au moins partiellement en forme de U.
EP11757596.9A 2010-09-14 2011-09-12 Dispositif et procédé pour fabriquer des profilés creux au moins partiellement fermés avec un temps de cycle réduit Not-in-force EP2616198B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010037533A DE102010037533A1 (de) 2010-09-14 2010-09-14 Vorrichtung und Verfahren zur Herstellung zumindest teilweise geschlossener Hohlprofile mit geringer Taktzeit
PCT/EP2011/065725 WO2012034966A1 (fr) 2010-09-14 2011-09-12 Dispositif et procédé pour fabriquer des profilés creux au moins partiellement fermés avec un temps de cycle réduit

Publications (2)

Publication Number Publication Date
EP2616198A1 EP2616198A1 (fr) 2013-07-24
EP2616198B1 true EP2616198B1 (fr) 2014-05-14

Family

ID=44651752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11757596.9A Not-in-force EP2616198B1 (fr) 2010-09-14 2011-09-12 Dispositif et procédé pour fabriquer des profilés creux au moins partiellement fermés avec un temps de cycle réduit

Country Status (8)

Country Link
US (1) US9533337B2 (fr)
EP (1) EP2616198B1 (fr)
JP (1) JP5530035B2 (fr)
KR (1) KR101703209B1 (fr)
CN (1) CN103167917B (fr)
DE (1) DE102010037533A1 (fr)
ES (1) ES2473576T3 (fr)
WO (1) WO2012034966A1 (fr)

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DE102009003668B4 (de) * 2009-03-24 2011-05-26 Thyssenkrupp Steel Europe Ag Vorrichtung und Verfahren zur Herstellung zumindest teilweise geschlossener Profile oder Halbzeuge aus einer Platine
JP5791876B2 (ja) * 2009-10-23 2015-10-07 有限会社和田製作所 管体成型プレス方法
DE102010037534A1 (de) * 2010-09-14 2012-03-15 Thyssenkrupp Steel Europe Ag Vorrichtung und Verfahren zur Herstellung von zumindest teilweise geschlossenen Hohlprofilen mit drehbaren Gesenkhälften und geringer Taktzeit
WO2012073337A1 (fr) * 2010-11-30 2012-06-07 小島プレス工業株式会社 Machine à presser
WO2013149653A1 (fr) * 2012-04-03 2013-10-10 Thyssenkrupp Steel Europe Ag Dispositif et procédé de fabrication de profilés ou d'éléments tubulaires au moins en partie fermés à partir de tôle métallique

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CN103167917B (zh) 2015-08-05
JP2013537111A (ja) 2013-09-30
US20130186164A1 (en) 2013-07-25
KR101703209B1 (ko) 2017-02-06
CN103167917A (zh) 2013-06-19
ES2473576T3 (es) 2014-07-07
DE102010037533A1 (de) 2012-03-15
KR20130099051A (ko) 2013-09-05
WO2012034966A1 (fr) 2012-03-22
US9533337B2 (en) 2017-01-03
EP2616198A1 (fr) 2013-07-24
JP5530035B2 (ja) 2014-06-25

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