EP1108483B1 - Procédé et dispositif pour le fluotournage - Google Patents

Procédé et dispositif pour le fluotournage Download PDF

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Publication number
EP1108483B1
EP1108483B1 EP00121618A EP00121618A EP1108483B1 EP 1108483 B1 EP1108483 B1 EP 1108483B1 EP 00121618 A EP00121618 A EP 00121618A EP 00121618 A EP00121618 A EP 00121618A EP 1108483 B1 EP1108483 B1 EP 1108483B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
collar
spinning
sliding sleeve
tool
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
EP00121618A
Other languages
German (de)
English (en)
Other versions
EP1108483A3 (fr
EP1108483A2 (fr
Inventor
Rudolf Jaschka
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.)
Leifeld Metal Spinning GmbH
Original Assignee
Leifeld Metal Spinning 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 Leifeld Metal Spinning GmbH filed Critical Leifeld Metal Spinning GmbH
Publication of EP1108483A2 publication Critical patent/EP1108483A2/fr
Publication of EP1108483A3 publication Critical patent/EP1108483A3/fr
Application granted granted Critical
Publication of EP1108483B1 publication Critical patent/EP1108483B1/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
    • 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
    • B21D53/261—Making other particular articles wheels or the like pulleys
    • 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
    • B21D22/14—Spinning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/02—Making articles shaped as bodies of revolution discs; disc wheels
    • B21H1/04—Making articles shaped as bodies of revolution discs; disc wheels with rim, e.g. railways wheels or pulleys

Definitions

  • the invention relates to a method for spin forming a Part with an inner hub and an outer hub, which surrounds the inner hub, according to the preamble of claim 1, and a device for Pressure rolling of such a part according to the preamble of Claim 7.
  • gear parts are used for a variety of purposes with a radially inner cylindrical sleeve portion and a surrounding outer cylindrical Sleeve section needed.
  • Such transmission parts with a so-called double hub or sleeve can according to the state
  • the technology can be made in various ways. So Such parts can, for example, by casting or Forging processes are produced. These procedures are but limited in their design variety and only economical for the production of large series.
  • the invention has for its object to provide a method and an apparatus with which parts can be made particularly economical with a double hub or sleeve structure.
  • One aspect of the invention is based on the fact that the workpiece be manufactured with the two hubs in one clamping can.
  • the spinning tool in addition to the spinning tool at least a sliding sleeve provided on the spinning tool, which after shaping the inner hub pushed over this becomes.
  • This sliding sleeve stops in this position second spinning tool, against which the second hub or the second cylindrical peripheral portion are formed can. This enables an efficient and thus cost-effective Manufacture of such transmission parts.
  • the separation of the material for forming the hub can in According to the invention by Abstreckd Wegwalzen or columns / cutting take place, the latter because of the low Force expenditure and the lower work hardening preferred is.
  • the spinning roller can be delivered to the spinning tool so that the hub is defined and complete between the spinning roller and the pressing tool is final molded.
  • a particularly large variety of forms can according to a development of the invention be achieved by that when molding the outer hub a ridge of the radial workpiece portion remains, which then further transformed.
  • a preferred procedure is according to the invention in that the web first thickened and then with a Profile is provided.
  • the thickening as an intermediate shape in cross section Oval, a symmetrical or asymmetrical drop, a Be cone or a rectangle shape.
  • Such a thickening can then continue to reshape and advantageously in particular with an outer toothing or a poly-V profile Mistake.
  • the remaining roundbridge can both to the side of the two trained hubs to make a third hub or on the opposite side be transformed.
  • external teeth can be on the reshaped web also has a corresponding internal profile, For example, a clutch plate teeth, molding.
  • the inner hub provided with an inner profile becomes.
  • an inner profile on the outer hub be in which the sliding sleeve on its outside provided with a corresponding profiling.
  • the outer hub with an outer profile is provided. This can in particular a toothing or a poly-V contour.
  • the task continues after Invention solved by providing a sliding sleeve which is axially displaceable on the pressing tool between a first position in which the sliding sleeve spaced apart from the workpiece to form the inner hub is, and a second position is stored in which arranged the sliding sleeve on the workpiece is and engages the molded inner hub, and that one Outer circumference of the hub according to the intended Inner contour of the molded outer hub is formed.
  • This flow-forming machine is suitable, the inventive Perform procedures, with the associated advantages be achieved.
  • preformed sheet metal parts or forged or cast workpieces be used from a variety of materials.
  • a preferred embodiment of the invention is that provided two axially opposite pressing tools are, between which the workpiece is clamped.
  • forming operations on both sides of the workpiece be carried out, so that a particularly large variety of forms is adjustable.
  • Another preferred embodiment of the invention is in that a plurality of sliding sleeves telescopically a spinning tool are arranged. So, two, three or more displacement sleeves coaxially arranged one inside the other be so that three, four or more cylindrical Hub areas formed on one side of the workpiece can be.
  • the invention described above can not only be for the manufacture of transmission parts but also of all use other flow-forming parts, where a double or multiple hub or sleeve structure on one side a workpiece is desired.
  • the clamping of the workpiece on the spinning tool can depend on the workpiece shape and the forming forces by an axially acting Counterholder, a radially acting jaw chuck, a magnetic or vacuum clamping device etc. or one Combination of these clamping means done.
  • FIG. 1 shows a flow-forming machine according to the invention 50, a first spinning tool 52 and a second spinning tool 54, between which a ronde-shaped workpiece 10th is clamped.
  • the workpiece 10 includes a center opening, which in the clamped position of a centering pin 55 of the second spinning tool 54 for centering is penetrated.
  • On the second pressing tool 54 is Furthermore, a support sleeve 58 slidably mounted. Together with the second pressing tool 54 is a recess 68 formed, in which the workpiece 10 accurately used is. '
  • Pressure rollers 70a and 70b radially delivered through which reducing the thickness of the workpiece 10 material partially split off and radially against the first, left-sided Pusher tool 52 for forming an inner hub 12 is formed.
  • the spinning rollers 70a, 70b have for this purpose Parting edge 72, to which a compression region 74 accordingly the desired contour of the hub to be formed followed.
  • the state at the conclusion of this process step molding the inner hub 12 to a radial extending workpiece portion 16 is in the upper half Fig. 1 shown.
  • the molding of the inner Hub 12 is provided on the first spinning tool 52 Displacement sleeve 56 in a first position, which the Forming a clearance for the spinning rollers 70a, 70b of the Workpiece 10 is spaced.
  • the sliding sleeve 56 For molding an outer hub 14, the sliding sleeve 56 delivered axially in the direction of arrow P1 to the workpiece 10.
  • the sliding sleeve 56 has on its inside an annular groove 62 with an insertion bevel 63, which formed for insertion of the molded inner hub 12 are.
  • the annular groove 62 may have a surface contour, the one calibrating or shaping the outside of the molded inner hub 12 performs during insertion.
  • the forming of the web 18 is a poly-V section 22 shown with a profile 20.
  • a third sliding sleeve 64 and on the side of the second spinning tool a fourth sliding sleeve 65 axially to the workpiece 10th delivered, with a free space corresponding to the form to be formed Section is formed.
  • a poly-V roller 78 is radially delivered, wherein the workpiece portion 22 with the profile 20th is final molded.
  • FIGS. 3a to 3e the individual process stages are shown for molding the workpiece 10 according to FIGS. 1 and 2 again shown schematically. After making the inner hub 12 and outer hub 14 as shown 3a to 3d will be prior to molding the poly-V profile the radially outer web 18 first thickened according to FIG. 3e and in two further process steps according to FIGS. 3f and 3g preformed.
  • Fig. 3i is an enlarged partial view of the profile 20 shown.
  • FIG. 4a to 4e is another variant of the invention Process illustrated. After a training an inner hub and an outer hub according to the The method described above is a radially outwardly projecting Bridge according to FIGS. 4a and 4b radially after pressed against the molded outer hub inside. Subsequently 4c and 4d, a poly-V-profile is preformed and finally, according to FIG. 4e, the poly-V profile immediately formed on the thickened outer hub.
  • FIG. 4f shows a further process modification, in which a peripheral portion with a single V-groove for a so-called V-belt is formed.
  • FIGS. 5a to 5c Another embodiment of the method according to the invention is shown schematically in Figs. 5a to 5d. outgoing from a Ronde is first an inner hub and an outer hub according to the above-described method formed, as shown in FIGS. 5a to 5c can be seen.
  • a remaining, radially outside projecting web is at this embodiment according to FIG. 5d to the opposite Side deformed to an unillustrated spinning tool, which on its outside with an outer profile is provided.

Landscapes

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

Claims (10)

  1. Procédé de fluotournage d'une pièce avec un moyeu intérieur (12) et un moyeu extérieur (14) qui entoure le moyeu intérieur (12), dans lequel
    une pièce (10) est serrée avec une section de pièce (16) d'extension radiale dans une machine de fluotournage (50) au niveau d'un outil de fluotournage (52),
    la pièce (10) est mise en rotation et au moins un rouleau de fluotournage (70) est approché radialement,
    de la matière est partiellement séparée par le rouleau de fluotournage (70) au niveau de la section de pièce radiale (16),
    la matière séparée est façonnée radialement contre l'outil de fluotournage (52), ce qui forme le moyeu intérieur (12),
       caractérisé en ce qu'une douille de déplacement (56) montée mobile sur l'outil de fluotournage (52) est poussée au-dessus du moyeu intérieur (12), et
    avec un autre rouleau de ftuotournage (70), de la matière supplémentaire de la section de pièce radiale (16) est déformée et façonnée contre la douille de déplacement (56), ce qui forme le moyeu extérieur (14).
  2. Procédé selon la revendication 1, caractérisé en ce que, lors du façonnage du moyeu extérieur (14), il reste une barre (18) de la section de pièce radiale (16) qui est ensuite de nouveau déformée.
  3. Procédé selon la revendication 2, caractérisé en ce que la barre (18) est d'abord épaissie, puis munie d'un profil (20).
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que le moyeu intérieur (12) est muni d'un profit intérieur.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que le moyeu extérieur (14) est muni d'un profil extérieur.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que le moyeu intérieur (12) et/ou le moyeu extérieur (14) sont façonnés dans une approche radiale au moyen d'un rouleau de fluotournage (70) qui présente un contour extérieur correspondant à la forme de moyeu souhaitée.
  7. Dispositif de fluotoumage d'une pièce avec un moyeu intérieur (12) et un moyeu extérieur (14) qui entoure le moyeu intérieur (12), suivant le procédé selon l'une des revendications 1 à 6, avec
    un outil de fluotournage (52) sur lequel peut être serrée une pièce (10),
    un entraínement pour faire tourner la pièce (10) serrée sur l'outil de fluotournage (52) et
    au moins un rouleau de fluotournage (70) ayant un bird de coupe (72) pour fendre la matière et former le moyeu,
       caractérisé en ce qu'il est prévu une douille de déplacement (56) qui est montée mobile axialement sur l'outil de fluotournage (52) entre une première position dans laquelle la douille de déplacement (56) est espacée de la pièce (10) pour former le moyeu intérieur (12), et une deuxième position dans laquelle la douille de déplacement (56) est placée contre la pièce (10) et saisit le moyeu (12) formé, et en ce qu'une section de circonférence extérieure de la douille de déplacement (56) est formée de manière correspondante au contour intérieur prévu du moyeu extérieur (14) à former.
  8. Dispositif selon la revendication 7, caractérisé en ce que deux outils de fluotournage (52) opposés axialement sont prévus, entre lesquels la pièce (10) peut être serrée.
  9. Dispositif selon la revendication 8, caractérisé en ce qu'une douille de déplacement (56) est prévue sur les deux outils de fluotoumage (52).
  10. Dispositif selon l'une des revendications 7 à 9, caractérisé en ce que plusieurs douilles de déplacement (56) sont placées de manière télescopique sur un outil de fluotournage.
EP00121618A 1999-12-15 2000-10-02 Procédé et dispositif pour le fluotournage Expired - Lifetime EP1108483B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19960582A DE19960582A1 (de) 1999-12-15 1999-12-15 Verfahren und Vorrichtung zum Drückwalzen
DE19960582 1999-12-15

Publications (3)

Publication Number Publication Date
EP1108483A2 EP1108483A2 (fr) 2001-06-20
EP1108483A3 EP1108483A3 (fr) 2002-07-24
EP1108483B1 true EP1108483B1 (fr) 2005-03-23

Family

ID=7932807

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00121618A Expired - Lifetime EP1108483B1 (fr) 1999-12-15 2000-10-02 Procédé et dispositif pour le fluotournage

Country Status (4)

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US (1) US6434991B1 (fr)
EP (1) EP1108483B1 (fr)
JP (1) JP4629863B2 (fr)
DE (2) DE19960582A1 (fr)

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Also Published As

Publication number Publication date
US6434991B1 (en) 2002-08-20
JP4629863B2 (ja) 2011-02-09
EP1108483A3 (fr) 2002-07-24
DE19960582A1 (de) 2000-08-03
DE50009851D1 (de) 2005-04-28
EP1108483A2 (fr) 2001-06-20
JP2001212626A (ja) 2001-08-07

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