EP0888834B1 - Verfahren zum Verbinden der Randbereiche eines oder mehrerer dünnwandiger Bauteile - Google Patents
Verfahren zum Verbinden der Randbereiche eines oder mehrerer dünnwandiger Bauteile Download PDFInfo
- 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
Links
Images
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.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
Claims (8)
- Verfahren zur Verbindung der Randbereiche (4,5) eines oder mehrerer dünnwandiger Bauteile (1,2) aus plastischem Material, wie eines oder mehrerer Metallblechprofile, insbesondere zur Herstellung eines Hohlkammerprofiles, bei welchem Verfahren die Verbindung mittels wenigstens einer mechanischen Verzahnung erfolgt, wobei der eine Randbereich (4) mit wenigstens einem Zahn (6) versehen wird und im anderen Randbereich (5) jeweils eine zum Umriß des Zahnes (6) komplementäre Ausnehmung (7) ausgebildet wird und wobei zur Verbindung der Randbereiche (4,5) jeder Zahn (6) bezüglich seiner zugeordneten Ausnehmung (7), ausgerichtet und anschließend senkrecht zur Ebene der Randbereiche (4,5) in dieselbe eingesetzt wird, dadurch gekennzeichnet, daß nach der Verbindung der Randbereiche (4, 5) einer derselben oder der Randbereich eines weiteren dünnwandigen Bauteiles (12) umgefalzt und zumindest teilweise über jeden vorzugsweise mit Übermaß bezüglich seiner zugeordneten Ausnehmung (7) ausgebildeten Zahn (6) gelegt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der umgefalzte Randbereich (5) vor seinem Umfalzen zusätzlich umgefalzt wird.
- Verfahren nach Anspruch 1 oder dadurch gekennzeichnet, daß der umgefalzte Randbereich (5) auf jeden Zahn (6) aufgepreßt wird.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß vor der Verbindung der Randbereiche (4, 5) einer derselben um einen stumpfen Winkel umgebogen und gleichzeitig mit der Verbindung der Randbereiche (4, 5) umgefalzt wird.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß jede Ausnehmung (7) in einem Abstand vom freien Rand des Randbereiches (5) als Durchbruch ausgebildet wird.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß jeder Zahn (6) oder jede Ausnehmung (7) in einem in einem Randbereich (4) ausgebildeten Flansch (3) ausgebildet wird.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß jeder Zahn (6) in an sich bekannter Weise im wesentlichen rechteckig, trapezoder kreisbogenförmig gestaltet wird.
- Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß im Falle der Ausbildung mehrerer Zähne (6) diese in unregelmäßigen Abständen und/oder verschiedenen Formen und/oder unterschiedlichen Größen ausgebildet werden.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19970890119 EP0888834B1 (de) | 1997-07-02 | 1997-07-02 | Verfahren zum Verbinden der Randbereiche eines oder mehrerer dünnwandiger Bauteile |
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 (de) | 1997-07-02 | 1997-07-02 | Verfahren zum Verbinden der Randbereiche eines oder mehrerer dünnwandiger Bauteile |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0888834A1 EP0888834A1 (de) | 1999-01-07 |
EP0888834B1 true EP0888834B1 (de) | 2003-05-14 |
Family
ID=8231107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19970890119 Expired - Lifetime EP0888834B1 (de) | 1997-07-02 | 1997-07-02 | Verfahren zum Verbinden der Randbereiche eines oder mehrerer dünnwandiger Bauteile |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0888834B1 (de) |
DE (1) | DE59710088D1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019217509B4 (de) * | 2019-11-13 | 2024-07-25 | Simplon Fahrrad Gmbh | Verfahren zur Herstellung eines zumindest teilbereichsweise geschlossenen Blechprofils aus Metall |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE95361C (de) * | ||||
DE1263668B (de) * | 1963-02-14 | 1968-03-21 | Doehner Ag | Verfahren und Vorrichtung fuer die Herstellung von mit gefalzten Raendern versehenen Hohlkoerpern |
EP0278998B1 (de) * | 1987-02-17 | 1991-01-30 | Enami Seiki Mfg. Co., Ltd. | Verbindung für Metallplatten |
GB2244015B (en) * | 1990-03-14 | 1993-10-27 | Hadley Sections Limited | Tube and method of forming same |
-
1997
- 1997-07-02 EP EP19970890119 patent/EP0888834B1/de not_active Expired - Lifetime
- 1997-07-02 DE DE59710088T patent/DE59710088D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0888834A1 (de) | 1999-01-07 |
DE59710088D1 (de) | 2003-06-18 |
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