EP1038606B1 - Procédé de fabrication d' un élément de transmission - Google Patents

Procédé de fabrication d' un élément de transmission Download PDF

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Publication number
EP1038606B1
EP1038606B1 EP00105129A EP00105129A EP1038606B1 EP 1038606 B1 EP1038606 B1 EP 1038606B1 EP 00105129 A EP00105129 A EP 00105129A EP 00105129 A EP00105129 A EP 00105129A EP 1038606 B1 EP1038606 B1 EP 1038606B1
Authority
EP
European Patent Office
Prior art keywords
groove
workpiece
profile
forming
circumferential area
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
EP00105129A
Other languages
German (de)
English (en)
Other versions
EP1038606A3 (fr
EP1038606A2 (fr
Inventor
Gerold Specht
Silke Steinke
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.)
Leico GmbH and Co Werkzeugmaschinenbau
Original Assignee
Leico GmbH and Co Werkzeugmaschinenbau
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 Leico GmbH and Co Werkzeugmaschinenbau filed Critical Leico GmbH and Co Werkzeugmaschinenbau
Publication of EP1038606A2 publication Critical patent/EP1038606A2/fr
Publication of EP1038606A3 publication Critical patent/EP1038606A3/fr
Application granted granted Critical
Publication of EP1038606B1 publication Critical patent/EP1038606B1/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
    • 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
    • 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
    • Y10T29/49453—Pulley making
    • Y10T29/49458—Disc splitting to form pulley rim groove
    • 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
    • Y10T29/49453—Pulley making
    • Y10T29/4946—Groove forming in sheet metal pulley rim
    • 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
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/1987—Rotary bodies
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/1987—Rotary bodies
    • Y10T74/19893—Sectional
    • Y10T74/19907—Sound deadening

Definitions

  • the invention relates to a method for producing a Gear part with a transverse profile, in particular a toothed belt pulley, in which an essentially rotationally symmetrical workpiece in a pressure rolling device clamped and rotated and at least one profiled pressure rolling tool on a peripheral region the workpiece is delivered and the cross running profile is molded.
  • Generic methods are for example from DE-C-37 11 927, DE-A-197 01 565 or DE-C-196 01 020 known.
  • Arrow-toothed gear parts can be in various Gears are used, which among other things in motor vehicle construction Find application. Especially in this area of application there is an increasing need for gears, which also with regard to noise or noise development are improved.
  • the invention has for its object to efficiently produce transmission parts with good, in particular low-noise, operating behavior.
  • the invention builds on the generic method on that before molding the transverse profit the circumferential area of the workpiece with at least a groove running in the circumferential direction is provided and that the transverse profile axially on both sides of the at least one groove is formed.
  • the method according to the invention is, at least the circumferential area of the workpiece to provide a groove running in the circumferential direction, before the transverse profile is formed.
  • a groove running in the circumferential direction can be a cross profile in a simple manner to be produced by spinning rollers, as through the circumferential groove improved material flow in the axial direction is made possible. After reshaping, the groove can be almost unchanged or be completely filled.
  • the Groove formed with a width in the outer peripheral region, where when molding the transverse profile Width of the groove is reduced. This way in addition to the transverse profile a special one create dimensionally stable and narrow groove.
  • the method according to the invention is particularly thereby simplified that when molding the profile material of the workpiece is displaced transversely in the direction of the groove.
  • groove shapes can be used be generated. So the groove can be in a radially outer area be closed again, so that in the profile Circumferential channel is created.
  • the essentially rotationally symmetrical workpiece by casting or forging.
  • the specific advantages of cast or forged preforms such as material properties or a special shape can be used. It is particularly advantageous here if the at least a circumferential groove when casting or Forging is trained. An additional process step can thus be used to introduce the groove into the workpiece omitted.
  • the at least one in the direction of rotation extending groove by radial infeed of a Form roll introduced into the peripheral region of the workpiece becomes.
  • the process steps of Insertion of both the groove and the transverse Profiles are carried out on a pressure rolling device, what a particularly fast and therefore inexpensive production allowed the transmission parts according to the invention. moreover becomes a notch effect in the material when rolling the groove counteracted.
  • the groove depth preferably corresponds to that Profile or tooth height or can be slightly smaller or larger his.
  • the groove could also be exciting, for example by turning into the workpiece.
  • the method is advantageous in that it is essentially rotationally symmetrical Workpiece in the spinning roller a border is formed.
  • This also leads to the advantage that another process step, namely manufacturing of the rotationally symmetrical workpiece as a preform can be carried out on the same spinning roller. It is thus a complete processing of the invention Gear part possible in one setup.
  • the at least one running in the circumferential direction Groove is formed as a round throat.
  • the one in essential semicircular cross section of the as a round throat formed groove reduces the occurrence of voltage peaks, so that here a particularly gentle production can be done.
  • the profile is preferred in the peripheral region of the workpiece by means of a pressure roller or by means of a Cross roll bar molded. Allow both options precise and fast machining of the workpiece and are therefore for an inexpensive manufacture according to the invention Gear parts particularly advantageous.
  • the two toothed areas delimit the Arrow teeth in a connection area, wherein the connection area is arranged along the groove becomes. This allows both the gearing to be used with high quality as well as the joint of the two gear areas produce in the arrow angle.
  • the peripheral region at least one in has a substantially circumferential groove, with the transverse profile axially on both sides the groove is arranged.
  • the groove has a width which in a radially outer circumferential area is smaller than in a radially inner circumferential area.
  • Tooth shapes are provided that are inclined or right angles are transverse to the circumferential direction.
  • the transverse profile as Arrow teeth is formed.
  • Teeth will snap off the timing belt during the operation prevented, so that additional, the Leading timing belt. Borders on the two end faces of the There is no need for a toothed belt pulley. Furthermore, one will Compensation of axial forces achieved with this shape.
  • the peripheral region is cylindrical is formed that a in a central area Hub is provided and that the hub with the peripheral region is connected via a round plate.
  • Such one-piece Gear parts are due to their material-saving and light Build and can build particularly inexpensive for weight reduction of machine or vehicle transmissions contribute.
  • Fig. 1a shows a sectional view of a rotationally symmetrical Workpiece 10 with a cylindrical shape Circumferential region 11 and a hub 12 with a central hole 13.
  • the workpiece 10 symmetrical about an axis of rotation 14 can be done in different ways, especially by pressure rolling, Casting or forging.
  • Fig. 1b the workpiece 10 is after the introduction of a in the circumferential direction groove 15 in the peripheral region 11 shown.
  • the groove is in the form of a round groove, i.e., it has an approximately semicircular cross section on.
  • the groove 15 is preferably in one Press-rolling machine by radial feed of a form roller brought in. Alternatively, the groove 15 can already be used generated when casting or forging the workpiece 10 become.
  • FIG. 1c A sectional view of the workpiece machined according to the invention the introduction of a transverse profile 17 in the with the groove 15 provided peripheral region 11 is in Fig. 1c shown.
  • the peripheral region 11 now has transverse ones Tooth pits 16 on.
  • the width of the groove 15 when molding the profile 17 compared to its original Width, as shown in Fig. 1b, reduced.
  • a narrow gap remains as a passage to the opposite tooth flank.
  • FIG. 2a shows the sectional view of one with a central hole 13 provided blank 20, from which step by step Spinning rollers formed a rotationally symmetrical workpiece is, by a hub 12 (Fig. 2b), a conical disk bridge 21 (Fig. 2c) and a peripheral region 11 (Fig. 2d) shaped becomes.
  • the peripheral region 11 is compressed or Columns made.
  • a groove 15 Fig. 2e
  • a cross extending profile 17 Fig. 2f

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)
  • Pulleys (AREA)
  • Forging (AREA)

Claims (12)

  1. Procédé de fabrication d'un élément de transmission présentant un profilé (17) transversal, dans lequel
    une pièce à usiner (10) substantiellement à symétrie de révolution est fixée dans un dispositif de fluotournage et est entraínée en rotation, et
    au moins un outil de fluotournage profilé est amené à une zone périphérique de la pièce à usiner (10) et le profilé transversal (17) est formé ce faisant,
    caractérisé
    en ce qu 'avant le formage du profilé transversal (17), la zone périphérique (11) de la pièce à usiner (10) est pourvue d'au moins une rainure périphérique (15) et
    en ce que le profilé transversal (17) est formé axialement de part et d'autre de ladite au moins une rainure (15).
  2. Procédé selon la revendication 1, caractérisé
    en ce que la rainure (15) est réalisée avec une largeur dans la zone périphérique extérieure (11) et
    en ce que lors du formage du profilé transversal (17), la largeur de la rainure (15) est réduite.
  3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que lors du formage du profilé (17) de la matière de la pièce à usiner (10) est refoulée dans la direction de la rainure (15).
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que ladite au moins une rainure périphérique (15) est ménagée par amenée radiale d'un rouleau de formage dans la zone périphérique (11) de la pièce à usiner (10).
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérise en ce que la pièce à usiner (10) substantiellement à symétrie de révolution est formée dans le dispositif de fluotournage à partir d'un flan circulaire (20).
  6. Procédé selon la revendication 1 à 5, caractérisé en ce que la zone périphérique ( 11 ) est réalisée par repoussage, fendage ou rabattage d'un bord de la pièce à usiner (10).
  7. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la pièce à usiner (10) substantiellement à symétrie de révolution est réalisée par moulage ou forgeage.
  8. Procédé selon la revendication 7, caractérisé en ce que ladite au moins une rainure périphérique (15) est réalisée lors du moulage ou forgeage.
  9. Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la au moins une rainure périphérique (15) est réalisée sous la forme d'une gorge ronde.
  10. Procédé selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le profilé dans la zone périphérique (11) de la pièce à usiner (10) est formé au moyen d'un galet de fluotournage ou au moyen d'une baguette de laminage transversal.
  11. Procédé selon l'une quelconque des revendications 1 à 10, caractérisé en ce qu' en tant que profilé transversal (17) est formée une denture à chevrons, laquelle comprend deux zones dentées (18), qui sont disposées selon un angle de chevrons l'une par rapport à l'autre.
  12. Procédé selon la revendication 11, caractérisé en ce que les deux zones dentées (18) de la denture à chevrons sont adjacentes l'une à l'autre dans une zone de liaison laquelle est disposée le long de la rainure (15).
EP00105129A 1999-03-22 2000-03-10 Procédé de fabrication d' un élément de transmission Expired - Lifetime EP1038606B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19912841A DE19912841B4 (de) 1999-03-22 1999-03-22 Verfahren zur Herstellung eines Getriebeteils
DE19912841 1999-03-22

Publications (3)

Publication Number Publication Date
EP1038606A2 EP1038606A2 (fr) 2000-09-27
EP1038606A3 EP1038606A3 (fr) 2000-11-02
EP1038606B1 true EP1038606B1 (fr) 2003-10-08

Family

ID=7901930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00105129A Expired - Lifetime EP1038606B1 (fr) 1999-03-22 2000-03-10 Procédé de fabrication d' un élément de transmission

Country Status (4)

Country Link
US (1) US6449845B1 (fr)
EP (1) EP1038606B1 (fr)
JP (1) JP2000301282A (fr)
DE (2) DE19912841B4 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE437716T1 (de) * 2002-08-08 2009-08-15 Lufkin Ind Inc Pfeilradzähne und verfahren zur herstellung derselben
US20040139774A1 (en) * 2003-01-22 2004-07-22 Yahya Hodjat Method of forming a sprocket
JP4618807B2 (ja) * 2006-06-07 2011-01-26 株式会社エンプラス 射出成形樹脂歯車
JP4919495B2 (ja) * 2007-03-23 2012-04-18 株式会社エンプラス 樹脂製やまば歯車
JP5223895B2 (ja) * 2010-08-06 2013-06-26 トヨタ自動車株式会社 カムスプロケットおよびその製造方法
JP5401489B2 (ja) * 2011-02-28 2014-01-29 株式会社クボタ エンジンの伝動装置
DE102012008016A1 (de) * 2012-04-24 2013-10-24 Daimler Ag Rotorträger für eine elektrische Maschine, Stützelement für einen Rotorträger und Verfahren zur Herstellung eines Stützelements
DE102012008015A1 (de) * 2012-04-24 2013-10-24 Daimler Ag Rotorträger und Verfahren zur Herstellung eines Rotorträgers
DE102015102279A1 (de) * 2015-02-18 2016-08-18 WF Maschinenbau und Blechformtechnik GmbH & Co. KG Verfahren und Vorrichtung zur Herstellung eines rotationssymmetrischen Getriebeteiles mit Planverzahnung
CN112276501B (zh) * 2020-10-23 2021-12-14 河南蒲瑞精密机械有限公司 一种硬齿面齿轮加工工艺

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE136818C (fr) *
DE3711927C1 (en) * 1987-04-13 1988-10-13 Leifeld & Co Method for the production of metal hollow bodies with profiles running in the axial direction on their outer circumference, especially teeth, and an apparatus for carrying out the method
DE19511963C2 (de) * 1995-03-31 2000-12-07 Leifeld Gmbh & Co Verfahren zur Herstellung von rotationssymmetrischen metallischen Werkstücken
DE19601020C1 (de) * 1996-01-13 1997-07-31 Leifeld Gmbh & Co Werkzeugeinrichtung zur Verwendung auf Drück- und Drückwalzmaschinen
DE19701565C2 (de) * 1997-01-17 2003-09-18 Leico Werkzeugmaschb Gmbh & Co Verfahren zur Herstellung eines Getriebeteils
GB2331263A (en) * 1997-11-12 1999-05-19 Technologies Research Holding Centering device

Also Published As

Publication number Publication date
US6449845B1 (en) 2002-09-17
DE19912841B4 (de) 2007-06-21
DE19912841A1 (de) 1999-11-11
EP1038606A3 (fr) 2000-11-02
DE50003963D1 (de) 2003-11-13
JP2000301282A (ja) 2000-10-31
EP1038606A2 (fr) 2000-09-27

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