EP1017518B1 - Dispositif de fluotournage et procede pour la fabrication d'engrenages a deux dentures interieures - Google Patents

Dispositif de fluotournage et procede pour la fabrication d'engrenages a deux dentures interieures Download PDF

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Publication number
EP1017518B1
EP1017518B1 EP98925614A EP98925614A EP1017518B1 EP 1017518 B1 EP1017518 B1 EP 1017518B1 EP 98925614 A EP98925614 A EP 98925614A EP 98925614 A EP98925614 A EP 98925614A EP 1017518 B1 EP1017518 B1 EP 1017518B1
Authority
EP
European Patent Office
Prior art keywords
shaping tool
flow
shaping
toothing
turning
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
EP98925614A
Other languages
German (de)
English (en)
Other versions
EP1017518A1 (fr
Inventor
Karl Heinz PÜTZ
Bernd Stein
Heinz Steinhauer
Wilhelm Zimmermann
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.)
DYNAFORM GMBH
Original Assignee
Dynaform 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 Dynaform GmbH filed Critical Dynaform GmbH
Publication of EP1017518A1 publication Critical patent/EP1017518A1/fr
Application granted granted Critical
Publication of EP1017518B1 publication Critical patent/EP1017518B1/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
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/18—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons grooved pins; Rolling grooves, e.g. oil grooves, in articles
    • B21H7/187—Rolling helical or rectilinear grooves
    • 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
    • B21D22/16—Spinning over shaping mandrels or formers
    • 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
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B21H5/025—Internally geared wheels
    • 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
    • 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
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/08—Making helical bodies or bodies having parts of helical shape internal screw-threads
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49462—Gear making
    • Y10T29/49467—Gear shaping
    • Y10T29/49471—Roll forming

Definitions

  • the invention relates to a pressure rolling device and a method for producing ring gears with two axially arranged internal gears, at least one of which is helical. There is also a thread under helical teeth understand.
  • Ring gears with internal teeth made of steel alloys and other metallic materials in particular for power transmission on driven wheels from for example, trucks or tractors. Ring gears of this type have on their end faces open ends of externally accessible internal gears on.
  • the two internal gears can one have different diameters when the ring gear for example in a gearbox.
  • the Ring gear can be a spur gear in which the teeth run parallel to the axis of rotation, have or a helical toothing or a thread.
  • WO 96/20050 describes a process for the production described by internally toothed parts, in the case of ring gears with two internal gears are produced by Press rolls the workpiece over forming tools Flow-forming. However, there are only ring gears with double-sided Straight toothing can be produced.
  • the invention has for its object the manufacture of internally toothed parts to improve that also parts with two internal teeth, from where at least one is helical, simple are to be produced.
  • the invention proposes a pressure rolling device which each have a first and second mold an external toothing, spinning rollers for spinning one on the interconnected molds seated workpiece and a holding means that the Work piece during the press rolling of the first internal toothing on the first mold against twisting secures, has.
  • At least one of the molding tools has a helical toothing in which the individual Teeth like a thread at an angle to the Longitudinal axis of the mold run.
  • At least one Scraper is provided that the finished Ring gear from the molding tool or tools with helical teeth under relative rotation between the mold and Pushes ring gear. During the production of the ring gear the two molds are non-rotatable with each other coupled.
  • the holding means can surround the second molding tool sliding sleeve.
  • the sleeve presses that Workpiece against the first mold during the first internal toothing is formed.
  • the sleeve holds thereby securing the workpiece on the molds it at the same time against twisting.
  • the workpiece is then through the first toothing held on the mold.
  • the holding means can also be an embossing element of the first Mold, such as a spur toothing.
  • a spur toothing at The workpiece is started by the contact pressure the pressure rollers on this spur toothing pressed so that a rotation of the workpiece without further holding means is prevented.
  • a preferred embodiment of the invention stands one of the molds from a tool holder from which is slidably guided in the other mold and attack to take it with you can.
  • the two molds are therefore from one Side freely accessible, so that the workpiece is easy can be pushed onto the two molds and the completed ring gear simply from the two Molds can be pushed off. So can too Ring gears are made behind a toothing have a paragraph that has a smaller diameter than the toothing has because the ring gear is stripped from the molds. The molding tool does not have to be pulled out through the paragraph of smaller diameter become.
  • this points to the first Mold facing end of the second mold a smaller diameter than the external teeth of the second mold.
  • FIG. 1 to 3 points the pressure rolling device 1 a first mold 2 in Shape of a hollow mandrel. This is rotatable on the Shaft of a machine attached. The machine is in the Figures not shown; it is on the left next to the pressure rolling device 1.
  • the mold 2 has one at its end facing away from the machine Helical toothing 3.
  • a second molding tool 4 runs in the central one Cavity of the first mold 2 and is pending a front opening of the first mold 2 out. It is on a shaft-side tool holder 5 attached, which is located in the central cavity and rotated and moved axially by the machine can.
  • the displaceable tool holder 5 engages a conical surface 7 in a corresponding inner cone of the first mold 2 for rotary driving.
  • to Creation of a conical clamp between the tool holder 5 and the first mold 2 is with a hollow mandrel 8 operated by the machine against that first molding tool 2 pressed.
  • the second mold 4 has parallel teeth at its protruding end 6 which have a smaller diameter than that Helical toothing 3 has.
  • the two molding tools 2.4 consist of materials containing chrome or molybdenum, which are hardened and hardened.
  • FIG. 1 that is to be formed into a ring gear Workpiece 9 already pre-shaped so that each a short tubular circumferential region 9a or 9b the beginning of the teeth 3 or 6.
  • This tubular areas 9a, 9b have a greater wall thickness than the ring gear to be manufactured because the tubular Areas 9a, 9b of greater length and less Wall thickness can be rolled.
  • Pressure rollers 10 made of hard metal or HSS steel form it Workpiece 9 on the molds 2.4.
  • the pressure rollers 10 are arranged in a radial plane and rotate around its central axis 11 with simultaneous feed.
  • the pressure rollers 10 are with a radial Force pressed against the workpiece 9.
  • the one so angry Pressure can be, for example, ⁇ 35 t.
  • the entire scope of the Machining workpiece 9 evenly must be a rotary Relative movement between the workpiece 9 and the Press rollers 10 take place. You can either use the molding tools 2.4 with the workpiece 9 held thereon can be rotated or the pressure rollers 10 can Workpiece 9 are moved all round.
  • a tailstock-side mandrel 12 of the machine has Spring assembly 13 on a centering pin 12a of the riding pin mandrel 12 is arranged.
  • the centering pin 12 engages in an end centering opening 14 of the second mold 4.
  • the thorn 12 is axially movable. This structure forms an ejection device 15, the tool holder 5 from the Release the conical pressure with the first mold 2 can.
  • the tailstock mandrel 12 and the toothing tion 6 of the second mold 4 are of a movable Surrounding sleeve 16 which the workpiece 9th holds non-rotatably on the molds 2.4.
  • the workpiece 9 from the tailstock side onto the two molds 2.4 postponed, the ejection device 15 and retracted the holding sleeve 16, that is, from the second Mold 4 are separated.
  • the holding sleeve 16 is then advanced. she presses the workpiece 9 against the face of the first Forming tool 2.
  • the hollow mandrel 8 on the machine side advanced until the spring assembly 13 against the in position driven tailstock-side mandrel 12 in compressed Condition is present. This will cause the tool holder 5 a conical clamping with the first mold 2 comes in, resulting in a rotationally fixed Coupling of the two molds 2 and 4 leads.
  • the spring assembly 13 of the ejection device 15 pressurized.
  • the first mold 2, the tool holder 5 with the second mold 4, the hollow mandrel 8, the ejector 15 and the holding sleeve 16 thus form together with the workpiece 9 a rotating unit.
  • the pressure rollers 10 are now on the tubular area 9a of the workpiece 9, which is the beginning of the helical toothing 3 of the first mold surrounds, moved up. Each spinning roller 10 rotates about its axis 11. The pressure rollers 10 are placed together on the machine Moves towards the material of the workpiece 9 in front of you and at the same time in the Press helical toothing 3 of the first mold 2, so that ent in the workpiece 9 internal teeth stands. At the bottom of Fig. 1 is a spinning roller 10a in the end position shown, as well as the completed first internal toothing of the workpiece 9.
  • Figures 1 and 2 each show two processing steps.
  • a scraper 18 which surrounds the first mold 2 against the End face of the ring gear 17 pressed.
  • the wiper sleeve 18 points against the ring gear 17 pressing end face on a thrust bearing 19, so that translational, but not rotational, movements be transmitted.
  • To detach the ring gear 17 the scraper sleeve 18 against the end face of the ring gear 17 pressed so that it rotates from the first mold 2 is pushed off. At the same time, it slides Ring gear 17 towards the tailstock and is thus from the first Forming tool 42 is rotated.
  • the loosened ring gear 17 ' which is shown here in dashed lines, can be removed from the pressure rolling device 1 as soon as the Ejection device 15 is moved to the tailstock side and is thus separated from the second mold 4.
  • the second toothing 6 also has a helical toothing a second wiper sleeve is provided, which runs on the ejector 15 to the Ring gear 17 also from the second toothing in the same Way to solve.
  • the first mold 102 also has helical teeth 3. However, it is not designed as a hollow mandrel, but rather tubular with a front central opening, into which the second mold 104 engages.
  • the second molding tool 104 has parallel teeth 6 and is with the tailstock-side tool mandrel 12 firmly connected.
  • the tailstock side tool mandrel For inserting the workpiece into the spinning roller device 101 is the tailstock side tool mandrel with the second mold 104 from the first Forming tool 102 pulled out and the workpiece on the first mold. 102 positioned and then the second mold 104 through the workpiece through into the opening of the first mold 102 inserted.
  • a rotatable coupling of the two Molding tools 102, 104 can be made by pressing the both molds 102, 104 or e.g. by not shown Securing pawls take place. Then will as described above, formed the first internal toothing.
  • a holding sleeve is not absolutely necessary, since the first mold 102 has an end toothing 116 against which the workpiece from the pressure rollers is pressed at the beginning of the forming process, so that the workpiece and the first mold 102 a non-rotatable Establish connection. In addition, however, can still a holding sleeve may be provided. Also the second internal toothing is shaped as described above. After this the ring gear 17 has been completed, the rotary coupling released between the two molds 102, 104, the scraper sleeve 18 pressed against the ring gear 17 and the first mold 102 from the internal toothing of the Ring gear 17 unscrewed. The tailstock-side tool mandrel 12 is pulled out of the ring gear 17, so that this is removed from the spinning roller 101 can be.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Gears, Cams (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Forging (AREA)

Claims (8)

  1. Dispositif de fluotoumage (1 ; 101) pour fabriquer une roue (17) à deux dentures intérieures, comportant un premier outil de formage (2 ; 102) et un deuxième outil de formage (4 ; 104) présentant chacun une denture extérieure (3, 6), les deux outils de formage (2, 4 ; 102, 104) pouvant être couplés l'un à l'autre de façon bloquée à l'encontre d'une rotation pour le fluotoumage, comportant des rouleaux presseurs (10) pour le fluotournage d'une pièce d'usinage (9) reposant sur les outils de formage (2, 4 ; 102, 104) reliés entre eux, et comportant un organe de retenue (16 ; 116) qui bloque la pièce à usiner (9) à l'encontre d'une rotation pendant le fluotournage de la première denture intérieure sur le premier outil de formage (2; 102),
    caractérisé en ce qu'au moins un outil de formage (2 ; 102) présente une denture hélicoïdale (3), et en ce qu'il est prévu au moins un organe de raclage (18) mobile en direction longitudinale qui, après annulation du couplage mutuel des deux outils de formage (2, 4 ; 102, 104), repousse la roue finie (17) depuis un outil de formage (2 ; 102) à denture hélicoïdale avec rotation relative entre l'outil de formage (2 ; 102) et la roue (17).
  2. Dispositif de fluotournage selon la revendication 1, caractérisé en ce que l'organe de retenue est une douille (16) qui entoure le deuxième-outil de formage (4 ; 104).
  3. Dispositif de fluotournage selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que l'organe de retenue est un organe de matriçage (116) du premier organe de formage (102).
  4. Dispositif de fluotournage selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'organe de raclage (18) est une douille mobile en translation sur un outil de formage (2 ; 102) et poussant contre la roue (17) au moyen d'un palier axial (19).
  5. Dispositif de fluotournage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'un des outils de formage (4) fait saillie d'un porte-outil (5) qui est guidé en translation dans l'autre outil de formage (2) et qui attaque celui-ci pour l'entraíner en rotation.
  6. Dispositif de fluotournage selon la revendication 5, caractérisé en ce que l'extrémité libre de l'un des outils de formage (4) est attaquée par un dispositif d'éjection (15) pour annuler l'entraínement en rotation après terminaison de la fabrication.
  7. Dispositif de fluotournage selon la revendication 5, caractérisé en ce que l'extrémité du deuxième outil de formage (104) couplée au premier outil de formage (102) présente un diamètre inférieur à celui de la denture extérieure (6) du deuxième outil de formage (104), de sorte que le deuxième outil de formage (104) peut être extrait hors de la roue (17).
  8. Procédé pour fabriquer des roues (17) à deux dentures intérieures, dont l'une au moins est une denture hélicoïdale, au moyen d'un dispositif (1; 101) qui comprend un premier outil de formage (2 ; 102) et un deuxième outil de formage (4 ; 104) présentant chacun une denture extérieure (3, 6), et qui comprend des rouleaux presseurs (10) pour le fluotournage d'une pièce à usiner (9) sur les dentures extérieures (3, 6) des outils de formage (2 ; 102, 4 ; 104),
    comprenant les étapes suivantes :
    déposition de la pièce à usiner (9) sur les outils de formage (2 ; 102, 4; 104),
    couplage solidaire en rotation des deux outils de formage (2 ; 102, 4 ; 104),
    activation d'au moins un organe de retenue (16 ; 116) pour le blocage anti-rotation de la pièce à usiner (9) pendant le fluotournage de la première denture intérieure sur le premier outil de formage (2 ; 102),
    fluotournage sur le premier outil de formage (2 ; 102),
    fluotournage sur le deuxième outil de formage (4 ; 104),
    annulation du blocage anti-rotation entre les deux outils de formage (2, 4 ; 102, 104),
    repoussement de la roue (17). depuis un outil de formage (2 ; 102) au moyen d'un organe de raclage (18), et
    séparation de la roue (17) vis-à-vis de l'autre outil de formage (4 ; 104).
EP98925614A 1997-05-28 1998-05-14 Dispositif de fluotournage et procede pour la fabrication d'engrenages a deux dentures interieures Expired - Lifetime EP1017518B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19722359 1997-05-28
DE19722359A DE19722359A1 (de) 1997-05-28 1997-05-28 Drückwalzvorrichtung und Verfahren zur Herstellung von Hohlrädern mit zwei Innenverzahnungen
PCT/EP1998/002922 WO1998053934A1 (fr) 1997-05-28 1998-05-14 Dispositif de fluotournage et procede pour la fabrication d'engrenages a deux dentures interieures

Publications (2)

Publication Number Publication Date
EP1017518A1 EP1017518A1 (fr) 2000-07-12
EP1017518B1 true EP1017518B1 (fr) 2002-03-27

Family

ID=7830762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98925614A Expired - Lifetime EP1017518B1 (fr) 1997-05-28 1998-05-14 Dispositif de fluotournage et procede pour la fabrication d'engrenages a deux dentures interieures

Country Status (6)

Country Link
US (1) US6253589B1 (fr)
EP (1) EP1017518B1 (fr)
JP (1) JP2002500564A (fr)
AT (1) ATE214987T1 (fr)
DE (2) DE19722359A1 (fr)
WO (1) WO1998053934A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19810265A1 (de) * 1998-03-10 1999-09-16 Dynamit Nobel Ag Verfahren zur Herstellung einer metallischen Zylinderlaufbuchse
JP4568962B2 (ja) * 1999-06-30 2010-10-27 アイシン・エィ・ダブリュ株式会社 クラッチのドラム及び内歯部材の成形装置
DE50103122D1 (de) * 2000-05-27 2004-09-09 Alpha Getriebebau Gmbh Spielarmes planetengetriebe
JP4069735B2 (ja) * 2002-02-21 2008-04-02 株式会社ジェイテクト 内歯車の成形方法
US7191626B2 (en) * 2005-06-07 2007-03-20 Profiroll Technologies Gmbh Method for producing an inner contour with an internal arbor acting on the inside wall of a workpiece
US20080105021A1 (en) * 2006-11-07 2008-05-08 Yahya Hodjat Method of forming a gear
US7487656B2 (en) * 2007-03-30 2009-02-10 The Gates Corporation Method of spinning multiple parts
DE502008000404D1 (de) 2008-05-26 2010-04-08 Repkon Machine And Tool Indust Verfahren zur Fertigung von Werkstücken und Drückwalzmaschine dazu
WO2010012457A1 (fr) * 2008-07-29 2010-02-04 Repkon Machine And Tool Industry & Trade Ltd. Dispositif et procédé de fabrication ou d'usinage de pièces à partir d'une préforme, en particulier pour le formage de profilés intérieurs ou de dentures intérieures
US20100083502A1 (en) * 2008-10-03 2010-04-08 Joseph Szuba Method of forming a one piece component
DE102012105958A1 (de) * 2012-07-04 2014-01-23 Thyssenkrupp Steel Europe Ag Verfahren zur Herstellung eines Verbindungselements zur Übertragung von Drehbewegungen
DE112013003368B4 (de) 2012-07-05 2023-03-23 Magna Powertrain Of America, Inc. Ausbilden spiralförmiger Verzahnungen
US10433965B2 (en) 2015-06-17 2019-10-08 Joint Purification Systems Llc Total joint replacement infection control devices and methods
ES2665845T3 (es) * 2015-10-20 2018-04-27 Leifeld Metal Spinning Ag Máquina de conformación para presionar/laminar a presión y procedimiento para presionar/laminar a presión
DE102022121959A1 (de) 2022-08-31 2024-02-29 Audi Aktiengesellschaft Verfahren zur Herstellung einer Gelenkwellenanordnung sowie eine Gelenkwellenanordnung

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT296118B (de) * 1969-02-27 1972-01-25 Soerensen & Koester Leichtmetallhülse mit schraubenförmigen Innenzügen, sowie Verfahren und Vorrichtung zur Herstellung derselben
JPS63149034A (ja) * 1986-12-15 1988-06-21 Hitachi Ltd インターナルギヤの製造方法
DE4446919A1 (de) * 1994-12-28 1996-07-04 Dynamit Nobel Ag Verfahren zur Herstellung von innenverzahnten Teilen

Also Published As

Publication number Publication date
US6253589B1 (en) 2001-07-03
JP2002500564A (ja) 2002-01-08
EP1017518A1 (fr) 2000-07-12
ATE214987T1 (de) 2002-04-15
WO1998053934A1 (fr) 1998-12-03
DE19722359A1 (de) 1998-12-03
DE59803553D1 (de) 2002-05-02

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