EP1712310B1 - Méthode pour le formage d'une rainure - Google Patents

Méthode pour le formage d'une rainure Download PDF

Info

Publication number
EP1712310B1
EP1712310B1 EP05008028A EP05008028A EP1712310B1 EP 1712310 B1 EP1712310 B1 EP 1712310B1 EP 05008028 A EP05008028 A EP 05008028A EP 05008028 A EP05008028 A EP 05008028A EP 1712310 B1 EP1712310 B1 EP 1712310B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
groove
forming
ring
wall
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
EP05008028A
Other languages
German (de)
English (en)
Other versions
EP1712310A1 (fr
Inventor
Ahmet Neset Sahrayicedit Mh.Tepe Sok. Özsoy
Bernhard Rolf
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.)
Repkon Machine And Tool Industry & Trade Ltd
Original Assignee
Repkon Machine And Tool Industry & Trade Ltd
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 Repkon Machine And Tool Industry & Trade Ltd filed Critical Repkon Machine And Tool Industry & Trade Ltd
Priority to EP05008028A priority Critical patent/EP1712310B1/fr
Priority to DE502005001017T priority patent/DE502005001017D1/de
Priority to AT05008028T priority patent/ATE366628T1/de
Publication of EP1712310A1 publication Critical patent/EP1712310A1/fr
Application granted granted Critical
Publication of EP1712310B1 publication Critical patent/EP1712310B1/fr
Not-in-force 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
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/30—Making other particular articles wheels or the like wheel rims
    • 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
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling

Definitions

  • the invention relates to a method for molding a groove according to the preamble of claim 1.
  • a method for molding a groove according to the preamble of claim 1. is, for example US 3,779,060 known.
  • the invention relates to the molding of a snap ring groove in the manufacture of oblique shoulder rims for trucks.
  • rims are usually produced in a flow-forming process.
  • a rim blank which usually consists of a rounded to a hollow cylinder and butt welded sheet metal strip, deformed by pressing of pressure rollers.
  • FIG. 1 The procedure for attaching a snap ring groove according to the prior art is shown in Figures 1 to 4.
  • the workpiece 3 (the rim blank) is fastened to a mandrel 4 rotatable about the longitudinal axis X. Subsequently, the mandrel 4 is rotated.
  • a groove 1 or bead is pressed in the region of the workpiece end face 3a, Figure 1.
  • the collar-shaped end region of the workpiece is reshaped.
  • a gap is formed by pressing the formula element between the counter element and the mold element in extension of the end face of the workpiece wall, in which flows in the resulting pressure surplus material of the workpiece during the Andschreibvorgangs.
  • Due to the permanent rotation of the mandrel and thus of the workpiece a narrow annular section is formed on the front side of the workpiece wall machined by the molding element. This annular section is very narrow, in contrast to the burr occurring in the prior art or the resulting excess volume of material. H. preferably narrower than the wall thickness of the workpiece, and can be separated from the workpiece, for example, by simple shearing.
  • the form element, the counter element and the preform element are advantageously rollers, wherein the form roller and the counter element have cross-sectional profiles which are adapted to the shape of the groove to be formed or the desired shape of the workpiece wall.
  • a workpiece 3 is fastened to a mandrel 4 rotating about the longitudinal axis X.
  • the mandrel 4 is preformed at its one end corresponding to the groove 1 to be attached.
  • a preforming roller (preforming element) 7 engages from the outside against the wall of the workpiece 3, wherein this preferably takes place in the radial direction, but also z. B. can take place at an angle to the axis X, and presses the workpiece 3 in the area 3a against the mandrel 4, so that a bead or groove 1 is formed.
  • the end face 3b of the workpiece wall is bent slightly radially outward.
  • a counter element 11 (which may also be a roller) outside set in the area 3a.
  • the counter-element 11 has a cross-section profile 12, 13 which comes into contact with the workpiece 3, which corresponds to the desired shape of the groove 1 or the region surrounding this groove 1.
  • a forming roll 6 (forming element) 6 with a longitudinal axis X 'is set against the inside of the workpiece wall.
  • the angle of the axis X 'to the longitudinal axis X is preferably about 5 °.
  • the forming roller 6 is formed according to the desired shape of the end portion 3 a of the workpiece 3.
  • the groove profile and the diameter of the workpiece 3 get their desired finished dimensions.
  • the end portion 3 a of the workpiece 3 is formed, so that the end face 3b of the wall of the workpiece 3 is brought radially outward and is pressed against a arranged on the counter element 11 limiting element 13. Due to the low angle of attack of the forming roller 6, the material is predominantly compressed in the end region of the workpiece 3, wherein other forming processes such as a simple bending can be involved.
  • a gap 26 which is preferably narrower than the wall thickness of the workpiece 3 in this area and can escape through the formed by pressing against the end portion 3a excess material of the workpiece 3 , This results in turning of the mandrel 4 to form an annular portion 22 on the end face 3b of the workpiece wall. It is also achieved that the critical region 2 is completely filled with material from the workpiece 3 due to the substantially small angle of the axis X 'to the longitudinal axis X and after deburring or smoothing the end face 3b along the line L not an uneven area 2 left remains. It can be seen from FIGS.
  • the axis X "of the preforming roller 7 is inclined slightly against the longitudinal axis X and the preforming roller 7 with the device 23 is moved by rotation of the mandrel 4 against the annular portion 22 on the workpiece 3.
  • the said device 23 can also turn off or pass through the section Disconnect laser processing from workpiece 3.
  • the rough shearing surface on a portion of the end face 3b of the workpiece wall can be smoothed by means of a smoothing device 24.
  • This smoothing device 24, like the device 23, is preferably a roller provided on the preforming roller 7 or part thereof.
  • the calender 24 and the supernatant separating means 23 may be separated be provided on the preforming roller 7.
  • the means 23, 24 may be combined to a single device, preferably on the preforming roller 7.

Landscapes

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

Claims (5)

  1. Procédé pour le formage d'une rainure (1), en particulier d'une rainure d'un jonc de blocage, dans la région de l'extrémité frontale d'une pièce à usiner (3), en particulier d'une jante de roue, dans le cadre duquel la pièce à usiner (3) est mise en rotation autour de son axe longitudinal (X) et le formage est exécuté par préformage d'une rainure (1) et par une déformation ultérieure de la région d'extrémité (3a) de la pièce à usiner (3), qui est effectuée sensiblement à l'opposé de l'axe longitudinal (X), au moyen d'un élément de formage (6) autour d'un contre-élément (11) prévu à l'extérieur, sur la paroi de la pièce, et présentant un profil de rainure prédéterminé,
    caractérisé par
    la réalisation d'une section annulaire (22) sur la face frontale courbée (3b) de la paroi de la pièce, par pression de la face frontale (3b) de la paroi de la pièce contre une section du contre-élément (11), pendant le processus de déformation.
  2. Procédé selon la revendication 1,
    caractérisé par
    la séparation de la section annulaire (22).
  3. Procédé selon revendication 1 ou 2,
    caractérisé par
    le planage de la face frontale déformée (3b) de la pièce à usiner (3), après la séparation.
  4. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que
    la section annulaire (22) est réalisée par le flux de la matière formant la pièce à usiner (3) qui, lors de la pression, s'écoule par une fente (26) formée entre le contre-élément (11) et l'élément de formage (6).
  5. Procédé selon l'une des revendications 2 à 4,
    caractérisé en ce que
    la séparation de la section annulaire (22) est effectuée par cisaillement, décolletage ou par traitement au laser.
EP05008028A 2005-04-13 2005-04-13 Méthode pour le formage d'une rainure Not-in-force EP1712310B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP05008028A EP1712310B1 (fr) 2005-04-13 2005-04-13 Méthode pour le formage d'une rainure
DE502005001017T DE502005001017D1 (de) 2005-04-13 2005-04-13 Verfahren zum Anformen einer Nut
AT05008028T ATE366628T1 (de) 2005-04-13 2005-04-13 Verfahren zum anformen einer nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05008028A EP1712310B1 (fr) 2005-04-13 2005-04-13 Méthode pour le formage d'une rainure

Publications (2)

Publication Number Publication Date
EP1712310A1 EP1712310A1 (fr) 2006-10-18
EP1712310B1 true EP1712310B1 (fr) 2007-07-11

Family

ID=34935079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05008028A Not-in-force EP1712310B1 (fr) 2005-04-13 2005-04-13 Méthode pour le formage d'une rainure

Country Status (3)

Country Link
EP (1) EP1712310B1 (fr)
AT (1) ATE366628T1 (fr)
DE (1) DE502005001017D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011117034A1 (de) * 2011-10-27 2013-05-02 Ronal Ag Vorrichtung und Verfahren zum Herstellen eines Metallrades

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3282078A (en) * 1963-12-23 1966-11-01 Cincinnati Milling Machine Co Method of making grooved hollow article

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1152086B (de) * 1960-12-15 1963-08-01 Kronprinz Ag Verfahren zum Herstellen von Felgen fuer luftbereifte Fahrzeugraeder
DE2053005B2 (de) * 1970-10-28 1973-05-30 Leifeld & Co, 4730 Ahlen Verfahren und vorrichtung zur herstellung von schraegschulterfelgen fuer lkw
DE10144834A1 (de) * 2001-09-12 2003-03-27 Wf Maschinenbau Blechformtech Vorrichtung zur Herstellung eines eine konzentrische Nabe aufweisenden Formkörpers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3282078A (en) * 1963-12-23 1966-11-01 Cincinnati Milling Machine Co Method of making grooved hollow article

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011117034A1 (de) * 2011-10-27 2013-05-02 Ronal Ag Vorrichtung und Verfahren zum Herstellen eines Metallrades
DE102011117034B4 (de) * 2011-10-27 2015-09-17 Ronal Ag Vorrichtung und Verfahren zum Herstellen eines Metallrades
US9573179B2 (en) 2011-10-27 2017-02-21 Ronal Ag Device and method for manufacturing a metal wheel

Also Published As

Publication number Publication date
ATE366628T1 (de) 2007-08-15
DE502005001017D1 (de) 2007-08-23
EP1712310A1 (fr) 2006-10-18

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