EP0888834B1 - Procédé de fixation des bords d'une ou plusieures pièces minces - Google Patents

Procédé de fixation des bords d'une ou plusieures pièces minces Download PDF

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Publication number
EP0888834B1
EP0888834B1 EP19970890119 EP97890119A EP0888834B1 EP 0888834 B1 EP0888834 B1 EP 0888834B1 EP 19970890119 EP19970890119 EP 19970890119 EP 97890119 A EP97890119 A EP 97890119A EP 0888834 B1 EP0888834 B1 EP 0888834B1
Authority
EP
European Patent Office
Prior art keywords
tooth
edge
teeth
connection
folded
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
EP19970890119
Other languages
German (de)
English (en)
Other versions
EP0888834A1 (fr
Inventor
Friedrich Mag. Ing. Blaha
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP19970890119 priority Critical patent/EP0888834B1/fr
Priority to DE59710088T priority patent/DE59710088D1/de
Publication of EP0888834A1 publication Critical patent/EP0888834A1/fr
Application granted granted Critical
Publication of EP0888834B1 publication Critical patent/EP0888834B1/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
    • 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
    • B21C37/10—Making tubes with riveted seams or with non-welded and non-soldered seams
    • B21C37/104—Making tubes with riveted seams or with non-welded and non-soldered seams the tubes having a special shape, e.g. polygonal 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
    • B21D39/032—Joining superposed plates by locally deforming without slitting or piercing by fitting a projecting part integral with one plate in a hole of the other plate

Definitions

  • the invention relates to a method for connecting the edge areas of a several thin-walled components made of plastic material, such as one or several sheet metal profiles, especially for the production of a hollow chamber profile, in which method the connection by means of at least one mechanical Gearing takes place, the one edge area with at least one Tooth is provided and one in the other edge area to outline the Tooth complementary recess is formed and being used for connection the edge regions of each tooth are aligned with respect to its associated recess and then perpendicular to the plane of the edge areas in the same is used.
  • hollow chamber profiles such as shaped pipes made of metal, usually in an endless process, such as drawing, pressing, continuous casting, Extrude or the like or from strip materials by rolling or folding and then welding or gluing the edge areas become.
  • Such processes have the disadvantage that for the production of Hollow chamber profiles of different cross-sections, each with corresponding tools or machines or a time-consuming retrofitting of the same are.
  • Aftertreatment of the manufactured ones is usually also Products required, e.g. the post-processing of welds, which at the processing of pretreated materials, such as coated sheets leads to further problems if the products have an attractive visual appearance Should offer appearance.
  • DE 40 07 161 A1 describes a method for connecting the edge areas two plate-shaped components in at least two steps, namely the positive interlocking of the components and a subsequent cold deformation at least one of the components along the butt joint.
  • GB 2 244 015 A relates to the connection of two edge areas, a cold deformation on the butt joint with the help of a mandrel and a Roller is provided to close gaps at the butt joint.
  • US 518 767 A shows a method in which teeth from the plane of a thin-walled component bent out and then in recesses another edge area are hooked.
  • DE 1 263 668 teaches a method for producing a hollow profile in which an edge area is compressed, but neither recesses, nor in this inserted teeth are provided.
  • DE 95 361 C describes a method for connecting the edge regions of a Thin-walled component shown, with teeth in the plane of the component in inserted their assigned recesses and deformed in this plane become.
  • the aim of the invention is to eliminate the disadvantages mentioned and Creation of a method for connecting the edge areas of two thin-walled Components, such as sheet metal, in particular for the production of hollow chamber profiles, a high with little time and effort Torsional rigidity of the connection or the hollow chamber profile is achieved.
  • hollow chamber profiles should be used with the method without great effort of different cross sections can be produced and a post-treatment the connection points can be dispensed with.
  • This goal is achieved with a procedure of the beginning set out achieved in that according to the invention after the connection of Edge areas of one of them or the edge area of another thin-walled Component folded and preferably at least partially over each tooth formed with an oversize with respect to its associated recess is placed.
  • the invention provides a method that is not only because of positive and frictional connection the production extremely torsionally rigid Hollow chamber profiles, but also a practically unlimited choice of cross-section the same enables. Furthermore, the connection can usually be made on the same Folding machine are carried out on the starting material of each desired cross section is given, so that additional tools or Machines are unnecessary. Another advantage is that because of the mere mechanical connection reworking of manufactured products are unnecessary and the products have a visually appealing appearance demonstrate. This is particularly the case when processing coated sheets from Importance. Furthermore, components made of different materials and with different Wall thicknesses are connected to each other.
  • the folded over edge area are additionally folded over before it is folded over, whereby the gearing is not visible from both sides and an extreme stable connection is achieved.
  • the folded edge area can be pressed onto each tooth, which increases the mechanical strength perpendicular to the surface of the components becomes.
  • Another advantage is achieved if one before the connection of the edge areas the same bent over an obtuse angle and at the same time with the connection the edge areas are folded over because this simplifies production, namely the manufacture on a press brake.
  • each recess in one Distance from the free edge of the edge area is formed as an opening. Hollow chamber profiles with a continuous edge can thus be produced, the breakthrough can be punched out.
  • each tooth or recess can be in an edge area trained flange are provided. This makes it possible for the components to manufacture on a press brake.
  • each tooth essentially becomes in a manner known per se rectangular, trapezoidal or circular arc shaped.
  • FIG. 1 shows a graphical View of two components before their connection
  • Fig. 2 is a perspective view these components after their connection or the hollow chamber profile produced
  • Fig. 3 in the upper half of the picture a partial longitudinal section through the Edge areas of the components shown in FIG. 1 and one in the lower half of the figure partial longitudinal section through the edge of the hollow chamber profile according to FIG. 2
  • 4 is a diagrammatic view of two differently designed components before they are connected
  • 5 is a perspective view of the hollow chamber profile produced with the same
  • Fig. 6 in the upper half of the picture a partial longitudinal section the edge areas of the components shown in FIG.
  • FIG. 17 shows the operations for completion a similar to the hollow chamber profile shown in Fig. 5, Fig. 18 in a graphical View three components before their connection
  • Fig. 19 is an illustration of Operations for connecting these components to a three-part hollow chamber profile
  • Fig. 20 is an illustration of those occurring under torsional stress Forces and deformations
  • Fig. 21 in a diagrammatic view Hollow chamber profile produced according to the invention together with the torsional stress occurring forces and its dimensional stability.
  • Fig. 1 shows two components made of sheet metal 1 and 2, of which the first component 1 is designed as a U-profile and its edge regions 4 are rectangular have flanges 3 bent outwards, on which teeth 6 are provided.
  • the second component 2 is band-shaped and has in its edge areas 5 to the teeth 6 complementary recesses 7, which with respect the teeth 6 have an undersize.
  • the edge areas 5 of the second component 2 bent through an obtuse angle, as shown in Fig. 1.
  • the two components 1, 2 are arranged one above the other in such a way that the edge regions 4 of the first component 1 on the second component 2 rest, the teeth 6 being aligned with the recesses 7.
  • the edge regions 5 of the second component 2 are then folded over, thereby the teeth 6 are pressed into the recesses 7 and the finished hollow chamber profile 8 according to FIG. 2 is achieved. It is understood that the marginal areas 5 of the second component 2 can also be folded over in a single operation can.
  • the edge areas 5 of the second component 2 are pressed down and thus folded over, whereby the teeth 6 are pressed into the recesses 7 become.
  • the teeth 6 are now from the edge areas 5 of the second Component 2 covered and therefore not visible.
  • the undersize of the recesses 7 is dimensioned such that when pressed in the teeth 6 material of the same begins to flow and finally the press joint covered (see Fig. 3, lower half of the picture) and also cold welding spots formed can be, which increases the strength of the mechanical connection and also a mechanical locking of the teeth 6 against pulling out perpendicular to the surface of the components 1, 2 is obtained.
  • Fig. 4 shows two other components 1 and 2.
  • the first component is also a U-profile designed and at its edge areas 4 with outwards under teeth 6 protruding at right angles.
  • the second component 2 is band-shaped and in its edge areas 5 at a distance from the free edge provided with recesses 7, which are complementary to the teeth 6 are. After aligning the teeth 6 with respect to the recesses 7 Edge area 5 of the second component 2 on the teeth 6 of the first component 1 pressed down, whereby the teeth 6 in a single operation Recesses 7 pressed and the edge area 5 is folded. With that produced hollow chamber profile 8 (Fig. 5), the toothing is largely covered.
  • Fig. 7 are the same component 1 as before and a variant of the second Component 2 shown.
  • the second component 2 has a double fold Edge area 5, whereby the finished hollow chamber profile 8 according to FIG Gearing covered on both sides and therefore not visible. Thereby it is also sufficient that the teeth 6 fit snugly into the recesses.
  • Fig. 9 shows the components 1, 2 in front and in the lower half in the figure Half of the picture the components 1, 2 after the connection.
  • FIG. 10 to 12 show different shapes of the teeth 6, etc.
  • Fig. 10 rectangular and Fig. 11 trapezoidal teeth 6, which has the advantage that in the Machining the edge areas 4 and 5 of the two components 1 and 2 the same Tools such as punching, milling, nibbling or laser cutting devices are used can be.
  • 12 shows teeth 6 delimited in a circular arc.
  • Fig. 13 a variant of the hollow chamber profile 8 is shown, which in principle with the same process steps as previously explained, and shows that the invention does not apply to the above-described embodiments is limited.
  • Fig. 14 it is indicated how a strip material or a board to one one-piece component 1 is folded as an intermediate, which is then on the manner illustrated in FIG. 15 for the hollow chamber profile 8 is closed, whereupon the edge area 5 of the component 1 is pressed down and thus the teeth in the recesses are pressed.
  • FIG. 16 and 17 show this pressing down and pressing in on a hollow chamber profile, which is made of two components 1 and 2 and a similar cross section such as that shown in Figs. 2 and 5.
  • the third component 12 preferably provided with a flange, is either one has smooth edge area or is also provided with teeth 13, wherein then the edge area 5 of the second component 2 with additional ones Recesses associated with teeth 13 or according to FIG. 19 with corresponding larger recesses 7 is formed.
  • FIG. 20 shows an exaggerated representation of a hollow chamber profile 9 under torsional stress (Arrows 11).
  • the forces acting on the connecting seam and Deformations are indicated by the arrows 10. Due to the low resistance the connection seam against these forces occurs with thin-walled Hollow chamber profiles not only for twisting the hollow chamber profile, but also there is also the risk that the, for example, spot-welded connecting seam tears.
  • the hollow chamber profile produced according to the invention 8 much more torsional stiffness because of the recesses teeth pressed in under torsional stress (arrows 11) predominantly compressive forces (Arrows 10) and from the flanks of the teeth 6 or Recesses 7 are added and the thrust and Shear forces are much lower.

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

Claims (8)

  1. Procédé pour relier les zones de bordure (4, 5) d'un ou de plusieurs composants (1, 2) à paroi mince en matière plastique, par exemple d'un ou de plusieurs profilés en tôle, en particulier pour réaliser un profilé à chambre creuse, dans lequel procédé la liaison s'effectue au moyen d'au moins une denture mécanique, une zone de bordure (4) étant pourvue d'au moins une dent (6) et dans l'autre zone de bordure (5) étant réalisé un évidement (7) complémentaire du contour de la dent (6), et pour la liaison des zones de bordure (4, 5) chaque dent (6) est orientée par rapport à son évidement (7) associé, et est insérée ensuite perpendiculairement au plan des zones de bordure (4, 5), caractérisé en ce qu'après la liaison des zones de bordure (4, 5) l'une de celles-ci ou la zone de bordure d'un autre composant (12) à paroi mince est sertie et est placée au moins en partie sur chaque dent (6) réalisée de préférence avec une surcote par rapport à son évidement (7) associé.
  2. Procédé selon la revendication 1, caractérisé en ce que la zone de bordure (5) sertie est sertie en supplément avant d'être sertie.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la zone de bordure (5) sertie est pressée sur chaque dent (6).
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce qu'avant la liaison des zones de bordure (4, 5) l'une de celles-ci est repliée suivant un angle obtus et est en même temps sertie avec la liaison des zones de bordure (4, 5).
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que chaque évidement (7) est réalisé à une distance du bord libre de la zone de bordure (5) sous la forme d'un ajour.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que chaque dent (6) ou chaque évidement (7) est réalisé dans une bride (3) formée dans une zone de bordure (4).
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que chaque dent (6) présente, de manière connue, une forme sensiblement rectangulaire, trapézoïdale ou en arc de cercle.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que dans le cas où plusieurs dents (6) sont réalisées, celles-ci sont formées à distances irrégulières et/ou sous différentes formes et/ou dans différentes tailles.
EP19970890119 1997-07-02 1997-07-02 Procédé de fixation des bords d'une ou plusieures pièces minces Expired - Lifetime EP0888834B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19970890119 EP0888834B1 (fr) 1997-07-02 1997-07-02 Procédé de fixation des bords d'une ou plusieures pièces minces
DE59710088T DE59710088D1 (de) 1997-07-02 1997-07-02 Verfahren zum Verbinden der Randbereiche eines oder mehrerer dünnwandiger Bauteile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19970890119 EP0888834B1 (fr) 1997-07-02 1997-07-02 Procédé de fixation des bords d'une ou plusieures pièces minces

Publications (2)

Publication Number Publication Date
EP0888834A1 EP0888834A1 (fr) 1999-01-07
EP0888834B1 true EP0888834B1 (fr) 2003-05-14

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EP19970890119 Expired - Lifetime EP0888834B1 (fr) 1997-07-02 1997-07-02 Procédé de fixation des bords d'une ou plusieures pièces minces

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EP (1) EP0888834B1 (fr)
DE (1) DE59710088D1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019217509A1 (de) * 2019-11-13 2021-05-20 Thyssenkrupp Steel Europe Ag Verfahren zur Herstellung eines zumindest teilbereichsweise geschlossenen Blechprofils aus Metall

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE95361C (fr) *
DE1263668B (de) * 1963-02-14 1968-03-21 Doehner Ag Verfahren und Vorrichtung fuer die Herstellung von mit gefalzten Raendern versehenen Hohlkoerpern
DE3767875D1 (de) * 1987-02-17 1991-03-07 Enami Seiki Kk Verbindung fuer metallplatten.
GB2244015B (en) * 1990-03-14 1993-10-27 Hadley Sections Limited Tube and method of forming same

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DE59710088D1 (de) 2003-06-18
EP0888834A1 (fr) 1999-01-07

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