EP3393694B1 - Verfahren zur umformenden herstellung einer verzahnung und werkzeugvorrichtung zur kalibrierung des verzahnungseinlaufs und/oder verzahnungsauslaufs - Google Patents

Verfahren zur umformenden herstellung einer verzahnung und werkzeugvorrichtung zur kalibrierung des verzahnungseinlaufs und/oder verzahnungsauslaufs Download PDF

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Publication number
EP3393694B1
EP3393694B1 EP16801204.5A EP16801204A EP3393694B1 EP 3393694 B1 EP3393694 B1 EP 3393694B1 EP 16801204 A EP16801204 A EP 16801204A EP 3393694 B1 EP3393694 B1 EP 3393694B1
Authority
EP
European Patent Office
Prior art keywords
toothing
workpiece
run
die
gear
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.)
Active
Application number
EP16801204.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3393694A1 (de
Inventor
Peter Hoehne
Joerg Brockstieger
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP3393694A1 publication Critical patent/EP3393694A1/de
Application granted granted Critical
Publication of EP3393694B1 publication Critical patent/EP3393694B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/08—Upsetting
    • 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
    • B21D53/28—Making other particular articles wheels or the like gear wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12—Forming profiles on internal or external surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/06—Making machine elements axles or shafts
    • B21K1/066—Making machine elements axles or shafts splined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/28—Making machine elements wheels; discs
    • B21K1/30—Making machine elements wheels; discs with gear-teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/28—Making machine elements wheels; discs
    • B21K1/30—Making machine elements wheels; discs with gear-teeth
    • B21K1/305—Making machine elements wheels; discs with gear-teeth helical

Definitions

  • the invention relates to a tool device for the reshaping calibration of the tooth inlet and / or the tooth outlet of a tooth system on a metallic workpiece according to the preamble of claim 1 (see e.g. WO-A-2013/149271 , Figures 19-22).
  • the invention also relates to a method for the deformable production of a toothing on a metallic workpiece using such a tool device.
  • Toothings can be produced on metal workpieces by cutting (e.g. by gear milling) or by forming (e.g. by axial forming or gear rolling).
  • the reshaping generation of a tooth system often has the disadvantage that undefined deformation occurs at the tooth inlet, but especially at the tooth outlet, with so-called tooth protrusions forming at the tooth outlet in particular, which then have to be removed, for example, by means of complex machining.
  • the object of the invention is to provide a tool device of the type mentioned at the beginning which does not have at least one disadvantage associated with the prior art, or at least only to a reduced extent.
  • the method according to the invention for producing a toothing on a metallic workpiece provides that the toothing is first produced in a deforming manner and that the toothing generated by forming is then at its toothing run-in and / or gear run-out through an upsetting process in which (at the gear run-in or gear run-out) both the gear shape and the gear length are set, is calibrated.
  • the toothing is produced, for example, by axial forming, with the workpiece and a shaping die or the like being moved relative to one another in the axial direction.
  • undefined deformations can occur at the tooth inlet (first point of contact between workpiece and die, which forms the beginning of the tooth) and / or at the tooth outlet (tooth end opposite the tooth inlet), which is unfavorable in several ways.
  • the toothing is (only) calibrated at the toothing inlet and / or the toothing outlet, with both the toothing shape (tooth and space shape) and the tooth length being set in the relevant area. Any gear protrusions are compressed to a defined amount, with the material flowing not only in the axial direction, but also in the radial direction. This also has the advantage that the load-bearing section or the load-bearing length of the toothing is also increased, so that the structural toothing length can be reduced if necessary.
  • the toothing is ready for use, i. H. further processing steps are not provided (i.e. no further processing costs).
  • the toothing can be a running toothing, in particular it is a plug-in toothing.
  • the compression is not free, but guided.
  • the toothing is supported during upsetting by a die, which is designed with a corresponding toothing contour, the die at the same time also specifying the tooth shape to be set at the gear inlet and / or at the gear outlet, i.e. the material flowing in the radial direction during upsetting is brought into the desired shape within the die.
  • the die has a corresponding internal or external contour.
  • the workpiece can consist of a solid material, for example a steel material, and can be processed by massive forming.
  • the workpiece preferably consists of a sheet metal material, for example a steel sheet, and is processed by sheet metal forming.
  • the die and the upsetting ring are attached together to an axially movable punch and are used for execution a calibration process moved or driven together. This enables a simple and robust tool structure.
  • the die has a conical toothing contour.
  • the conical design simplifies the engagement with the toothing to be calibrated on the workpiece (workpiece toothing) at the inlet and / or outlet. Furthermore, a defined deformation at the gear inlet and / or gear outlet can already take place when the gear is brought into engagement.
  • the die has a degree of freedom of rotation so that it can align itself automatically when it is brought into engagement with the workpiece toothing.
  • a workpiece or a component, for example a gearwheel or the like, that has a toothing produced with the method according to the invention and / or with the aid of the tool device according to the invention, is characterized in that this toothing produced by forming has a shape and length-calibrated tooth inlet and / or Having gear run-out.
  • the toothing preferably has a straight, i.e. H. non-sharpened tooth inlet and / or outlet.
  • the in Fig. 1 The section shown of a tool device 100 according to the invention has a holder 110 and a punch 120 guided therein in a longitudinally movable manner.
  • a mandrel-like die 130 and an upsetting ring 140 are attached to the punch 120.
  • the punch 120 can be moved together with the die 130 and the upsetting ring 140 in the axial direction L, as illustrated by the double arrow D.
  • With 125 a punch guide and anti-rotation lock is referred to.
  • the tool 100 is installed in a forming machine (for example an axial forming machine), by means of which the punch movement D is also brought about.
  • Fig. 1 further shows a sheet metal workpiece 200 with a collar-like passage 210, on the inner circumferential surface of which a toothing (internal plug-in toothing) 220 that has previously been generated by forming is formed.
  • the workpiece toothing 220 was produced from the bottom up and has a lower toothing inlet 221, an upper toothing outlet 222 (see FIG Fig. 2 ) and a load-bearing section in between. Due to the deforming production, an undefined deformation has occurred at the gear runout 222, which is now calibrated with the aid of the die 130 and the upsetting ring 140.
  • the workpiece 200 is fixed in a workpiece holder 150 belonging to the tool device 100 and not shown below. The calibration process is described below using the Fig. 2 explained in more detail.
  • the punch 120 After the workpiece 200 has been inserted and fixed in the workpiece holder 150, the punch 120, together with the die 130 and the upsetting ring 140, is moved downward in the axial direction L, the die 130 initially in the Passage 210 reached.
  • the die 130 is conical and has on its conical outer circumferential surface a toothing contour 135 corresponding to the workpiece toothing 220, which gradually comes into engagement with the workpiece toothing 220 when the punch 120 is moved forward with increasing cross-sections.
  • the axis of movement L of the punch 120 or the die 130 attached to it corresponds to the central axis of the workpiece toothing 220.
  • the die 130 In order to prevent tilting, the die 130 has a slight rotational play (degree of freedom of rotation) within the tool device 100.
  • the toothing outlet 222 is deformed in the radial transverse direction R due to its conical or widening design.
  • the upsetting ring 140 presses in the axial direction L against the toothing end at the upper toothing outlet 222 of the workpiece toothing 220, which results in an upsetting deformation in which the workpiece material flows in both the axial direction L and in the radial direction R and any tooth protrusions be reshaped.
  • the individual tooth ends of the toothing 220 are leveled and are then located in one plane. During this calibrating upsetting process, both the tooth shape and the tooth length are set to a defined dimension (at least in the tenth range) at the tooth outlet 222.
  • Fig. 1 and Fig. 2 each show the end of the axial feed movement D of the punch 120.
  • the workpiece toothing 220 should not be calibrated as a whole, but only in certain areas, ie at the toothing run-out 222 (as explained above) and / or at the gear run-in 221.
  • the toothing 220 can be supported in the sections not to be calibrated in order to prevent undesired deformation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Gears, Cams (AREA)
  • Punching Or Piercing (AREA)
EP16801204.5A 2015-12-21 2016-11-24 Verfahren zur umformenden herstellung einer verzahnung und werkzeugvorrichtung zur kalibrierung des verzahnungseinlaufs und/oder verzahnungsauslaufs Active EP3393694B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015226364.9A DE102015226364A1 (de) 2015-12-21 2015-12-21 Verfahren zur umformenden Herstellung einer Verzahnung und Werkzeugvorrichtung zur Kalibrierung des Verzahnungseinlaufs und/oder Verzahnungsauslaufs
PCT/EP2016/078641 WO2017108319A1 (de) 2015-12-21 2016-11-24 Verfahren zur umformenden herstellung einer verzahnung und werkzeugvorrichtung zur kalibrierung des verzahnungseinlaufs und/oder verzahnungsauslaufs

Publications (2)

Publication Number Publication Date
EP3393694A1 EP3393694A1 (de) 2018-10-31
EP3393694B1 true EP3393694B1 (de) 2022-01-05

Family

ID=57394567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16801204.5A Active EP3393694B1 (de) 2015-12-21 2016-11-24 Verfahren zur umformenden herstellung einer verzahnung und werkzeugvorrichtung zur kalibrierung des verzahnungseinlaufs und/oder verzahnungsauslaufs

Country Status (6)

Country Link
US (1) US11426785B2 (ja)
EP (1) EP3393694B1 (ja)
JP (1) JP6797917B2 (ja)
CN (1) CN108367335B (ja)
DE (1) DE102015226364A1 (ja)
WO (1) WO2017108319A1 (ja)

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3796106A (en) * 1971-06-29 1974-03-12 Borg Warner Method and apparatus for making sprockets and/or gears
JPS6142440A (ja) * 1984-08-06 1986-02-28 Mitsubishi Heavy Ind Ltd 歯車の鍛造用金型
JPH0749132B2 (ja) * 1985-09-04 1995-05-31 アイシン精機株式会社 歯車転造装置
US6007762A (en) * 1995-09-18 1999-12-28 The Penn State Research Foundation Apparatus and method for precision gear finishing by controlled deformation
US5551270A (en) * 1994-07-18 1996-09-03 Ford Motor Company Extrusion forming of internal helical splines
US5732586A (en) * 1996-09-19 1998-03-31 Ford Global Technologies, Inc. Cold extrusion for helical gear teeth
JP3341981B2 (ja) * 1997-08-27 2002-11-05 本田技研工業株式会社 はすば歯車のサイジング装置及びサイジング方法
AT9818U1 (de) * 2007-04-04 2008-04-15 Miba Sinter Austria Gmbh Vorrichtung und verfahren zum kalibrieren eines sinterformteils
JP4862794B2 (ja) * 2007-09-26 2012-01-25 アイシン・エィ・ダブリュ株式会社 スプライン部材の製造方法
CN101428326B (zh) * 2008-12-08 2010-11-24 江苏太平洋精锻科技股份有限公司 汽车倒挡中间齿轮齿形精整及倒锥成形模具
DE102009019249B4 (de) * 2009-04-30 2011-03-31 Felss Gmbh Verfahren zur Herstellung eines Profils in einer Wand eines Werkstücks
DE102010017592B8 (de) * 2010-06-25 2013-04-11 Heinrich Müller Maschinenfabrik GmbH Verfahren und Vorrichtung zur spanlosen axial umformenden Ausbildung einer Verzahnung mit angeformten Spitzen an einem Werkstück
DE102010053547A1 (de) * 2010-12-04 2012-06-06 Form Technology Gmbh Verfahren und Vorrichtung zur Herstellung eines innen- und außenverzahnten topfförmigen Blechteils
DE102011111216A1 (de) * 2011-08-20 2013-02-21 Sona Blw Präzisionsschmiede Gmbh Synchronring
ES2652610T3 (es) 2012-04-03 2018-02-05 Thyssenkrupp Presta Aktiengesellschaft Procedimiento para mecanizar una pieza funcional
CN103111483A (zh) * 2013-02-01 2013-05-22 太仓久信精密模具有限公司 大模数直齿圆柱齿轮冷挤压工艺及其专用模具
CN203253780U (zh) * 2013-05-28 2013-10-30 宁波市镇海金雳机械制造有限公司 内齿齿轮圈整形工具
CN204449012U (zh) * 2014-12-19 2015-07-08 重庆海通机械制造有限公司 齿圈一体式整形模

Also Published As

Publication number Publication date
US20200261961A1 (en) 2020-08-20
US11426785B2 (en) 2022-08-30
CN108367335B (zh) 2020-03-10
CN108367335A (zh) 2018-08-03
EP3393694A1 (de) 2018-10-31
DE102015226364A1 (de) 2017-06-22
WO2017108319A1 (de) 2017-06-29
JP6797917B2 (ja) 2020-12-09
JP2019502557A (ja) 2019-01-31

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