EP2977119A2 - Procédé de fabrication d'un profil de torsion à partir d'une platine et profil de torsion - Google Patents

Procédé de fabrication d'un profil de torsion à partir d'une platine et profil de torsion Download PDF

Info

Publication number
EP2977119A2
EP2977119A2 EP15176230.9A EP15176230A EP2977119A2 EP 2977119 A2 EP2977119 A2 EP 2977119A2 EP 15176230 A EP15176230 A EP 15176230A EP 2977119 A2 EP2977119 A2 EP 2977119A2
Authority
EP
European Patent Office
Prior art keywords
trough
legs
longitudinal edges
spacer
bent
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
EP15176230.9A
Other languages
German (de)
English (en)
Other versions
EP2977119B1 (fr
EP2977119A3 (fr
Inventor
Jan Krull
Paul Kaupmann
Dieter Friesen
Norbert Niggemeyer
Eugen Seibel
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.)
Benteler Automobiltechnik GmbH
Original Assignee
Benteler Automobiltechnik GmbH
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 Benteler Automobiltechnik GmbH filed Critical Benteler Automobiltechnik GmbH
Publication of EP2977119A2 publication Critical patent/EP2977119A2/fr
Publication of EP2977119A3 publication Critical patent/EP2977119A3/fr
Application granted granted Critical
Publication of EP2977119B1 publication Critical patent/EP2977119B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B21D7/00—Bending rods, profiles, or 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/025—Stamping using rigid devices or tools for tubular articles
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards

Definitions

  • the invention relates to a method for producing a Torsionsprofils from a circuit board according to the preamble of patent claim 1 and Torsionsprofil according to the preamble of claim 8.
  • process step d) can also be carried out before one of process steps a), b) or c).
  • the board can have all possible contours.
  • the board is contoured rectangular, so that when bending the legs of the deformed board, after in this a longitudinally directed U-shaped recess was introduced at a distance from their front ends, have approximately the same width over its entire longitudinal extent.
  • the bent legs are bent such that they are arranged substantially parallel to each other and parallel to the central longitudinal plane of the trough.
  • the tubular deformation of the bent legs in which the front ends of the board adjacent areas and the U-shaped deformation of the bent legs in the longitudinal section with the trough in adaptation to the contour of the trough, the longitudinal edges of the bent legs are arranged opposite each other over their entire longitudinal extent.
  • the tubular deformation should not be limited to a round, oval or similar geometry. Rather, it should be understood to mean any deformation, so that the end portions of the resulting profile can be molded to other components, of course, they are formed according to torsional stiffness.
  • the invention is characterized by the fact that by introducing at least one spacer in the formed board, the bent legs and are at least partially held at a distance in the direction of longitudinal edges of the central longitudinal section extending boundary walls of the trough, wherein after joining the longitudinal edges of the deformed legs, the bent legs and the boundary walls of the trough in the central longitudinal section, which is claimed in the torsion profile to torsion, spaced are.
  • the bent legs and the boundary walls no longer rub against one another or slide off completely under a torsional load, so that the generation of noises, in particular in frequency ranges that are unpleasant or even painful for the human ear, is effectively reduced.
  • bent legs and the boundary walls of the trough extending in the direction of longitudinal edges of the central longitudinal section are kept at a distance over their entire longitudinal extent. This ensures that the bent legs and the boundary walls at a torsional stress no longer rub against each other or slide off, so that the formation of noise, especially in frequency ranges that are uncomfortable or even painful for the human ear, is effectively avoided.
  • a projecting bead from the bottom of the trough is formed in the direction of the longitudinal edges of the central longitudinal section.
  • the introduction of the at least one spacer between the longitudinal edges of the bent legs ensures that the entire manufacturing process of the already known DE 10 2009 031 981 A1 can continue to be used, with only the final joining can be done only after the introduction of this spacer.
  • the bent legs before introducing the spacer still on the boundary walls of the trough but by introducing the spacer between the longitudinal edges of the bent legs is achieved that a bending of the bent legs takes place, so between them and the boundary walls of the trough now required distance is formed.
  • the now occurring between the bent legs and the boundary walls gap is sufficient to avoid noise formation under torsional stress of the central longitudinal section of the Torsionsprofils.
  • the introduction of the at least one spacer is, however, such that it is located after the U-shaped deformation of the bent leg between the bent leg and in the direction of the longitudinal edges of the central longitudinal section extending boundary wall of the trough.
  • two spacers are advantageously used, so that in each case one is located between a bent leg and a boundary wall on both sides of the trough. Even by the introduction of such a spacer a complete contact of the bent legs and the boundary walls of the trough in the central longitudinal section of the Torsionsprofils is avoided, so that also in the torsion case, the noise is avoided by a rubbing together of the legs on the boundary walls.
  • solid lubricants such as graphite, graphene, molybdenum sulfide, polytetrafluoroethylene or the like uses solid lubricants.
  • the friction or sliding properties of these materials enable a virtually silent, imperceptible to human hearing sliding these elements on the boundary walls of the trough and the bent legs.
  • these spacers can be arranged before the deformation of the board at the corresponding points of the board.
  • the spacers are made in the form of a deformation of the bent leg or the boundary walls of the trough and in the area to be provided to the boundary walls or the bent legs extending surface with a corresponding solid lubricant.
  • both the solid lubricants and the viscous lubricants after completion of the Torsionsprofils again, for example chemically or by dissolution during the Torsionsbe screwung be removed from the Torsionsprofil, however, the spacing of the legs to the boundary walls of the trough is maintained.
  • the torsion profile according to the invention made of a board has a torsionally rigid tubular end portion, a torsionally soft U-shaped middle, a trough forming longitudinal section and between the central longitudinal portion and the end portions of the U-shaped in the tubular cross-section changing transition sections, wherein the central longitudinal portion formed is that bent legs and adjacent to the longitudinal edges of the central longitudinal section extending boundary walls of the trough are arranged adjacent.
  • the torsion profile according to the invention is now distinguished by the fact that at least a spacer is provided, by which the bent legs are held around the boundary walls of the trough in the central longitudinal section at a distance.
  • the at least one spacer is arranged between longitudinal edges of the deformed legs. This ensures that such a spacer can be easily inserted into a gap between the longitudinal edges of the deformed legs, whereby the bent legs are widened again slightly, so that forms the gap between the legs and the boundary walls of the trough.
  • the spacer can torsional profiles with different distances between the legs and the boundary walls can be realized, but can be used on the same production tools. This is particularly advantageous because it does not require the provision of a large number of production tools in order to produce different torsion profiles with different torsion properties.
  • the torsion property of the Torsionsprofils can be adjusted by an appropriate use of the spacer.
  • the spacer is joined to the longitudinal edges of the deformed legs, in particular welded.
  • At least one spacer between the bent legs and a extending in the direction of the longitudinal edges of the central longitudinal section boundary wall of the trough is arranged.
  • This also makes the bent Leg and the boundary walls of the trough held at a distance, so that in this case a gap between these elements is formed so that no contact between the legs and the boundary walls of the trough occurs in torsional stress in the central longitudinal section.
  • the longitudinal edges of the deformed legs are now joined together, in particular welded together.
  • the at least one spacer made of a solid lubricant, in particular graphite, graphene, molybdenum sulfide, polytetrafluoroethylene or the like , Namely, such solid lubricants have the special property that they slide particularly well on other materials, in particular relatively smooth materials without noise.
  • the spacing between the bent legs and the boundary walls of the trough is uniform over the entire central longitudinal section.
  • torsion profiles of this type can be produced particularly economically in terms of process technology.
  • the trough has a projecting bead which extends from the bottom to form a free space in the direction of the longitudinal edges of the central longitudinal section.
  • the boundary walls of the trough and the bent legs are joined or welded together in an unintentional manner when a high energy input into the material takes place during welding.
  • the torsion profile according to the invention is produced by the method according to the invention described above.
  • FIG. 1 an embodiment of a Torsionsprofils 1 according to the invention is shown in a perspective view.
  • the torsion profile 1 has torsionally rigid, substantially circular, tubular end portions 2, a torsionally soft U-shaped central longitudinal section 3 and between the central longitudinal section 3 and the end sections 2 from the U-shaped in the tubular cross-section changing transition sections 4.
  • the torsion profile 1 is provided in the middle longitudinal section 3 with a trough 11, so that formed by this trough 11 of the central longitudinal section 3 is U-shaped.
  • a bottom 47 of this trough is in this case arranged opposite longitudinal edges 7, which are of ear-shaped design, wherein the torsion profile 1 in the middle longitudinal section 3 is thus configured as double-layered or double-walled.
  • the torsion profile 1 is made of a rectangular metal plate 8, from the in FIG. 2 a half is shown. The other half is a mirror image, so below in the FIGS. 3 to 5 only this one half is illustrated and also described.
  • the front ends 9 adjacent regions 10 of the board 8 are first deformed S-shaped.
  • the tools used for this purpose are not shown in detail.
  • the thus deformed board 8 is provided between the S-shaped portions 10 with a U-shaped recess 11.
  • the board 8 is placed between an upper tool, not shown here and a lower tool, also not shown.
  • the upper tool determines with a bead, the inner contour of the trough, while the lower tool with a groove serves as an abutment and determines the outer contour.
  • the trough 11 is inserted centrally in the board 8 such that adjacent to the trough 11 in approximately equal legs 14 and 15 are formed.
  • a deformed board 8 is in the FIG. 3 shown.
  • the approximately constant legs 14 and 15 of the board 8 next to the trough 11 substantially parallel to each other and bent to the central longitudinal plane of the trough 11.
  • a correspondingly shaped board 8 is in the FIG. 4 shown.
  • Formed board 8 is then transformed using other tools so that the legs 14 and 15 in contact with their longitudinal edges 35 and 36 in the ends of the formed plate 8 tubular and the central longitudinal section 3 with the trough 11 are U-shaped deformed.
  • Such a deformed board 8 is shown in the illustration FIG. 5 shown.
  • FIG. 6 now shows a cross-sectional view of according to FIG. 5
  • the legs 14 and 15 abut boundary walls 54 and 55 of the trough 11 and contact them.
  • the longitudinal edges 35 and 36 of the legs 14 and 15 are opposed to form a gap 42.
  • the trough 11 is provided in its bottom 47 with a bead 48, so that between the legs 14 and 15 and the boundary walls 54 and 55 in the region of the gap 42, a clearance 49 is formed.
  • this Torsionsprofil 1 in its central longitudinal section 3, which can be subjected to torsional stress, no contacts of the legs 14 and 15 with the corresponding boundary walls 54 and 55, so at a Torsionsbe screwung the Torsionsprofils a noise due to rubbing legs 14 and 15 and boundary surfaces 54 and 55 is avoided.
  • FIGS. 9 and 10 Another embodiment of a Torsionsprofils 1 according to the invention is in the FIGS. 9 and 10 shown. As can be clearly seen, no spacer is inserted in the gap 42 between the longitudinal edges 35 and 36 of the legs 14 and 15 in this embodiment. Rather, a separate spacer 51 and 52 is used in each case between the leg 14 and the boundary wall 54 and between the leg 15 and the boundary wall 55.
  • the leg 14 is spaced from the boundary wall 54, while by the spacer 52, the leg 15 is spaced from the boundary wall 55.
  • these spacers 51 and 52 are formed from a solid lubricant, such as graphite, graphene, molybdenum sulfide or polytetrafluoroethylene. These materials have particularly good sliding properties, so that no or no perceptible to human hearing noise in torsion occurs when these spacers 51 and 52 against the legs 14 and 15 and the boundary walls 54 and 55 are moved.
  • a closed profile is formed in this embodiment, the longitudinal edges 35 and 36 of the legs 14 and 15 of the thus formed board 8 are joined together, in particular welded together.
  • Such a joint 62 is in FIG. 10 shown and will preferably be executed in a metallic circuit board as a weld.
  • the spacers 51 and 52 can be placed correspondingly during various process steps in the production of the torsion profile 1 according to the invention.
  • the rectangular board 8 may already be provided with corresponding spacers 51 and 52. However, it is also possible to place these spacers during other manufacturing steps during the process according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Exhaust Silencers (AREA)
  • Springs (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Vehicle Body Suspensions (AREA)
EP15176230.9A 2014-07-10 2015-07-10 Procédé de fabrication d'un profil de torsion à partir d'une platine et profil de torsion Active EP2977119B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014109680.0A DE102014109680A1 (de) 2014-07-10 2014-07-10 Verfahren zum Herstellen eines Torsionsprofils aus einer Platine sowie Torsionsprofil

Publications (3)

Publication Number Publication Date
EP2977119A2 true EP2977119A2 (fr) 2016-01-27
EP2977119A3 EP2977119A3 (fr) 2016-05-25
EP2977119B1 EP2977119B1 (fr) 2021-06-23

Family

ID=53835214

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15176230.9A Active EP2977119B1 (fr) 2014-07-10 2015-07-10 Procédé de fabrication d'un profil de torsion à partir d'une platine et profil de torsion

Country Status (5)

Country Link
US (1) US9802235B2 (fr)
EP (1) EP2977119B1 (fr)
CN (1) CN105251842B (fr)
DE (1) DE102014109680A1 (fr)
ES (1) ES2882094T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6296211B2 (ja) * 2016-03-30 2018-03-20 新日鐵住金株式会社 トーションビーム製造方法及びトーションビーム製造装置
DE102018100989B3 (de) 2018-01-17 2019-02-14 Benteler Automobiltechnik Gmbh Verfahren zum Herstellen eines gebogenen Torsionsprofils sowie Torsionsprofil
KR102245234B1 (ko) * 2018-11-30 2021-04-29 주식회사 포스코 토션빔의 제조방법

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE102009031981A1 (de) 2009-02-24 2010-08-26 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Kraftfahrzeugbauteils in Form eines Torsionsprofils

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Also Published As

Publication number Publication date
CN105251842A (zh) 2016-01-20
EP2977119B1 (fr) 2021-06-23
US9802235B2 (en) 2017-10-31
ES2882094T3 (es) 2021-12-01
EP2977119A3 (fr) 2016-05-25
CN105251842B (zh) 2018-03-23
DE102014109680A1 (de) 2016-01-14
US20160008863A1 (en) 2016-01-14

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