EP0888834A1 - 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
EP0888834A1
EP0888834A1 EP97890119A EP97890119A EP0888834A1 EP 0888834 A1 EP0888834 A1 EP 0888834A1 EP 97890119 A EP97890119 A EP 97890119A EP 97890119 A EP97890119 A EP 97890119A EP 0888834 A1 EP0888834 A1 EP 0888834A1
Authority
EP
European Patent Office
Prior art keywords
tooth
edge
edge areas
recess
connection
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
EP97890119A
Other languages
German (de)
English (en)
Other versions
EP0888834B1 (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
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE59710088T priority Critical patent/DE59710088D1/de
Priority to EP19970890119 priority patent/EP0888834B1/fr
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, in particular 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 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.
  • the invention further relates to a method for connecting the edge regions one or more thin-walled components made of plastic material, such as one or several sheet metal profiles, in particular 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 in the other edge area one for the outline complementary recess of the tooth is formed and wherein for connection the edge areas of each tooth with respect to its associated recess aligned and then perpendicular to the plane of the edge areas is inserted into the same and the edge areas in the area of the butt joint be cold worked between each tooth and each recess.
  • 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 appropriate 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 appealing optical 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 be hooked to another edge area.
  • 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 and the Creation of a method for connecting the edge areas of two thin-walled Components, such as metal sheets, 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 at least partially preferred over each tooth formed with an oversize with respect to its associated recess is placed.
  • each tooth is formed with excess in its recess that use of the tooth in its associated recess by perpendicular to the plane of the Edge areas directed pressure is carried out and that the cold deformation at the same time in one work step by applying this pressure as well is carried out directly at the butt joint.
  • 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 true when processing coated metal sheets from Meaning. Furthermore, components made of different materials and with different Wall thicknesses are interconnected.
  • 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.
  • a further advantage is achieved if a 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 is 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 to assemble 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 according to 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 shows 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 graph 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 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 building is 2 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.
  • Fig. 7 are the same component 1 as before and a variant of the second Component 2 shown.
  • the second building 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 in the upper half of the picture the components 1, 2 in front and in the lower 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.
  • FIGS. 18 and 19 it is shown in FIGS. 18 and 19 that several components, in In this case, three, can be connected to form a hollow chamber profile 8 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.
  • 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)
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
DE59710088T DE59710088D1 (de) 1997-07-02 1997-07-02 Verfahren zum Verbinden der Randbereiche eines oder mehrerer dünnwandiger Bauteile
EP19970890119 EP0888834B1 (fr) 1997-07-02 1997-07-02 Procédé de fixation des bords d'une ou plusieures pièces minces

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

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Application Number Title Priority Date Filing Date
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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021094147A1 (fr) * 2019-11-13 2021-05-20 Thyssenkrupp Steel Europe Ag Procédé de fabrication d'un profilé en tôle métallique au moins partiellement fermé

Citations (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
EP0278998A1 (fr) * 1987-02-17 1988-08-24 Enami Seiki Mfg. Co., Ltd. Assemblage pour feuilles métalliques
GB2244015A (en) * 1990-03-14 1991-11-20 Hadley Sections Limited Tube and method of forming same

Patent Citations (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
EP0278998A1 (fr) * 1987-02-17 1988-08-24 Enami Seiki Mfg. Co., Ltd. Assemblage pour feuilles métalliques
GB2244015A (en) * 1990-03-14 1991-11-20 Hadley Sections Limited Tube and method of forming same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021094147A1 (fr) * 2019-11-13 2021-05-20 Thyssenkrupp Steel Europe Ag Procédé de fabrication d'un profilé en tôle métallique au moins partiellement fermé

Also Published As

Publication number Publication date
EP0888834B1 (fr) 2003-05-14
DE59710088D1 (de) 2003-06-18

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