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US20100261415A1 - Tooth flank polishing tool - Google Patents

Tooth flank polishing tool Download PDF

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Publication number
US20100261415A1
US20100261415A1 US12/671,347 US67134708A US2010261415A1 US 20100261415 A1 US20100261415 A1 US 20100261415A1 US 67134708 A US67134708 A US 67134708A US 2010261415 A1 US2010261415 A1 US 2010261415A1
Authority
US
United States
Prior art keywords
polishing
tooth
fleece
base
tooth flank
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.)
Abandoned
Application number
US12/671,347
Other languages
English (en)
Inventor
Horst Wawro
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.)
Jahnel Kestermann Getriebewerke GmbH
Original Assignee
Jahnel Kestermann Getriebewerke 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 Jahnel Kestermann Getriebewerke GmbH filed Critical Jahnel Kestermann Getriebewerke GmbH
Assigned to JAHNEL-KESTERMANN GETRIEBEWERKE GMBH reassignment JAHNEL-KESTERMANN GETRIEBEWERKE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WAWRO, HORST
Publication of US20100261415A1 publication Critical patent/US20100261415A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B24D13/12—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of felted or spongy material, e.g. felt, steel wool, foamed latex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F19/00—Finishing gear teeth by other tools than those used for manufacturing gear teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F21/00—Tools specially adapted for use in machines for manufacturing gear teeth

Definitions

  • the invention relates to a tooth flank polishing tool and the use of such tool.
  • vibratory grinding the work pieces to be worked on are placed as bulk material in a working container, together with abrasive products, so-called chips, and frequently an additive in aqueous solution.
  • a relative movement between workpiece and the abrasive product is produced by an oscillatory and rotational motion of the working container which causes removal of material from the workpiece, in particular on its edges. Vibratory grinding can produce excellent surface smoothness.
  • Burning occurs when abrasive material with very small of fine grain size is used. This is due to the fact that the coefficient of friction between the abrasive material and the workpiece becomes very high with decreasing grain size, with heat generated by friction potentially causing material changes of the workpiece. The material can, for example, become brittle which would adversely affect the service life.
  • the tooth flank polishing tool is used to remove roughness peaks, i.e., the surface structure of the tools flanks is at least partially plastically deformed with very little material removal and hence smoothed.
  • Ra surface roughness
  • the basic geometry of the previously generated tooth gear arrangement is not changed.
  • the damage of the tooth surfaces from thermal overheating, which can occur when fine-grained grinding disks that do not match the geometry of the tools flanks are used, can thus be reliably prevented with proper handling.
  • the tooth flank polishing tool can be adapted to any size of a tooth gear.
  • the polishing fleece is inserted in a radial circumferential groove or a seat of the base. In this way, the polishing fleece can be permanently and stably affixed.
  • a combination of the base and the polishing fleece can have the shape of a polishing disk.
  • the tooth flank polishing tool can then advantageously be clamped in conventional polishing machines, such as rotary tables, gear hopping mills or tooth flank grinding machines. Machining is performed incrementally, i.e., the tooth gear is rotated commensurate with its pitch and the tooth flank polishing tool is moved between two tooth flanks.
  • the combination of the base and the polishing fleece can have the shape of a polishing worm gear.
  • a polishing worm gear With a polishing worm gear, the flanks of the tooth gear can be polished in a continuous process.
  • the polishing worm gear can also be clamped in conventional polishing machines, such as rotary tables, gear hopping mills or tooth flank grinding machines.
  • the polishing fleece hereby formed a tooth of the polishing worm gear or a surface region of the tooth.
  • the tooth can also be formed on the base and the polishing fleece can be attached outside on the tooth.
  • the tool flank polishing tool is primarily intended for polishing tooth gears, for example, spur tooth gears and pinions, spur ring gears, bevel spur gears and pinions, as well as worm gears and shafts, in particular with diameters greater than 1000 mm.
  • FIG. 4 a tooth flank polishing tool in form of a polishing worm gear
  • FIG. 5 a cross section through the polishing worm gear of FIG. 4 according to a first embodiment
  • FIG. 6 a cross section through the polishing worm gear of FIG. 4 according to a second embodiment
  • FIG. 8 a cross section through the polishing finger of FIG. 7 according to a first embodiment
  • FIG. 9 a cross section through the polishing finger of FIG. 7 according to a second embodiment.
  • the polishing fleece 15 engages in a tooth gap 7 of the tooth gear 1 and has in the section where it makes contact with a tooth flank 8 an outside contour that matches the shape of the tooth flank 8 of the tooth gear 1 .
  • the tooth gear 1 is clamped in the tooth flank polishing machine for rotation about its longitudinal axis 9 . Accordingly, one tooth flank 8 after another tooth flank 8 of the tooth gear 1 can be polished.
  • FIG. 1 also shows schematically an oscillation generator 95 which is coupled to the base 4 in a manner that is not illustrated in detail.
  • the oscillation generator is a piezoelectric ultrasound motor which superimposes an oscillatory motion on the rotary motion of the base 4 or of the polishing fleece, wherein the oscillatory motion can point longitudinally in one of the illustrated spatial directions x, y, z or any other additional spatial direction. Longitudinal oscillations can also be superimposed, resulting in a rotation oscillation in an arbitrary spatial plane.
  • the oscillatory motion of the base improves the polishing efficiency of the tooth flank polishing tool of the invention.
  • FIG. 2 illustrates the polishing disk 16 in cross-section.
  • the base 4 having an inner cylindrical hollow space 10 is rotationally symmetric with respect to its central axis 3 and has on the radially outward peripheral side 11 a circumferential groove 12 in which the polishing fleece 15 is inserted.
  • the polishing fleece 15 has on two surfaces 13 , 14 an outside contour that matches the shape of two adjacent tooth flanks 8 (see FIG. 1 ).
  • the polishing fleece 15 includes an organic material, for example cotton or sisal.
  • FIG. 3 Another embodiment of the polishing disk 17 is illustrated in FIG. 3 in cross-section. Unlike in the polishing disk 16 (see FIG. 2 ), at the base 23 a circumferential bead 18 is formed, with a polishing fleece layer 20 applied on its radially outside 19 .
  • the bead 18 has an outside contour formed by two surfaces 21 , 22 and matching the shape of adjacent tooth flanks 8 (see FIG. 1 ).
  • the polishing fleece 33 engages simultaneously in several adjacent tooth gaps 39 of the tooth gear 30 .
  • the polishing worm gear 31 has a tooth 40 which protrudes from the radially outward peripheral side of the base 32 and winds in a helical pattern about the base 32 .
  • the outer contour of the tooth 40 matches the shape of the tooth flanks 37 with which it is in contact.
  • the tooth gear 30 rotates about its longitudinal axis 38 in unison with the rotation of the polishing worm gear 31 . In this way, all tooth flanks 37 can be polished in a continuous process.
  • FIG. 5 shows a cross-section through a polishing worm gear 51 according to a first embodiment.
  • the base 53 which has an interior hollow space 52 , includes on its radially peripheral side 54 a groove 55 which winds around the base 53 in a helical pattern and into which the polishing fleece 56 is inserted.
  • the polishing fleece 56 forms the tooth 40 (see FIG. 3 ) of the polishing worm gear 51 .
  • the polishing fleece 56 has an outside contour 57 that matches the shape of the tooth flanks 37 (see FIG. 3 ).
  • the polishing fleece 56 includes a synthetic material, for example resin fibers, tangled resin fibers or nylon.
  • FIG. 6 shows a second embodiment of the polishing worm gear 58 in cross-section.
  • the tooth 59 is formed on the base 53 , and a polishing fleece layer 60 is applied on the tooth 58 .
  • the polishing fleece layer 60 is attached on the base 53 with an adhesive and includes a mineral material, for example aluminum oxide (Al 2 O 3 ), preferably in form of corundum.
  • FIG. 7 shows a tooth flank polishing tool 70 in form of a polishing finger and a simplified schematic diagram of a tooth gear 71 , which are jointly clamped in an unillustrated rotary table.
  • the polishing finger 70 has a base 72 on which a polishing fleece 73 is attached.
  • the polishing finger 70 rotates about its longitudinal axis 74 during polishing and is also adjustable in the direction of the longitudinal axis 74 of the polishing finger and the longitudinal axis 75 of the tooth gear.
  • the polishing finger 70 is inserted in a tooth gap 77 and pressed with a predefined pressing force against (the) tooth flanks 76 to be polished and is guided in a translational motion parallel to the longitudinal axis 75 of the tooth gear along the surfaces of the tooth flanks 76 .
  • FIG. 8 shows in cross-section a polishing finger 80 according to a first embodiment.
  • the polishing finger 80 has a base 81 on which a shaft 82 is formed as a single piece.
  • a seat 84 for a polishing fleece 85 is provided on the end 83 opposite the shaft 82 .
  • the polishing fleece 85 is held with a rotation lock in this seat 84 .
  • the base surface of the seat 84 and of the insertion section 86 of the polishing fleece 85 are hereby shaped as a polygon.
  • the outside of the polishing fleece has a conical contour 87 that matches the shape of the tooth flanks 76 (see FIG. 7 ) with which the contour 87 makes contact.
  • the polishing fleece 85 is made of nylon.
  • polishing fleeces 16 , 51 , 80 of the embodiments illustrated in FIGS. 2 , 5 and 8 are shown as a single piece. However, these polishing fleeces could also be produced with a stiffening core made of a different material, wherein the polishing fleece is arranged only on the outside of this core.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
US12/671,347 2007-07-30 2008-07-28 Tooth flank polishing tool Abandoned US20100261415A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007036000.4A DE102007036000B4 (de) 2007-07-30 2007-07-30 Zahnflankenpolierwerkzeug
DE102007036000.4 2007-07-30
PCT/DE2008/001221 WO2009015643A2 (fr) 2007-07-30 2008-07-28 Outil de polissage de profils de dents et son utilisation

Publications (1)

Publication Number Publication Date
US20100261415A1 true US20100261415A1 (en) 2010-10-14

Family

ID=40175756

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/671,347 Abandoned US20100261415A1 (en) 2007-07-30 2008-07-28 Tooth flank polishing tool

Country Status (6)

Country Link
US (1) US20100261415A1 (fr)
EP (1) EP2170559B1 (fr)
AT (1) ATE513653T1 (fr)
CA (1) CA2695029C (fr)
DE (1) DE102007036000B4 (fr)
WO (1) WO2009015643A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150290730A1 (en) * 2014-04-09 2015-10-15 KAPP Werkzeugmaschinen GmbH Method for hard fine machining of a workpiece with a worm-shaped cutting tool
JP2020037159A (ja) * 2018-09-05 2020-03-12 株式会社ニートレックス本社 曲がり歯傘歯車用研磨体、及び曲がり歯傘歯車の研磨方法
JP2020196095A (ja) * 2019-06-03 2020-12-10 株式会社ニートレックス本社 溝研磨体
US20220379395A1 (en) * 2021-05-25 2022-12-01 Klingelnberg Gmbh Method for machining and measuring workpieces
US20230278120A1 (en) * 2020-06-30 2023-09-07 3M Innovative Properties Company Process of grinding and polishing gear wheels
US12179278B2 (en) 2019-08-29 2024-12-31 Noritake Co., Limited Multilayer grindstone for gear grinding

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2734368C1 (ru) * 2020-03-26 2020-10-15 Георгий Онуфриевич Волик Ультразвуковая зуборезная головка

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1194566A (en) * 1916-08-15 stewart
US2660009A (en) * 1952-01-05 1953-11-24 Lyon Inc Abrading wheel
US3623275A (en) * 1969-11-10 1971-11-30 Michigan Tool Co Composite abrasive finishing tool
US4354328A (en) * 1980-02-11 1982-10-19 Masato Ainoura Screw type hone assembly for the honing of gears
US6174223B1 (en) * 1999-01-14 2001-01-16 Sumitomo Heavy Industries, Ltd. Method and apparatus for polishing external-tooth gears

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757895C (de) * 1940-05-21 1952-10-27 Fried Krupp A G Vorrichtung zum Glaetten der Flanken von Zahnraedern, insbesondere Schiffsmaschinengetriebezahnraedern
US3955327A (en) * 1972-12-21 1976-05-11 Lear Siegler, Inc. Gear polishing
GB2141055B (en) * 1983-05-06 1987-01-07 Roger Albert Edwards Finishing toothed workpieces
BE898907A (nl) * 1984-02-14 1984-08-14 Martens Dirk Machine voor het polijsten van glasranden van op vorm geslepen optische brilglazen
DE3707664C1 (de) * 1987-03-10 1988-10-13 Liebherr Verzahntech Gmbh Werkzeugmaschine zum Feinbearbeiten der Zahnflanken von vorverzahnten Zahnraedern
DE3816270A1 (de) * 1988-05-12 1989-11-23 Pfauter Hermann Gmbh Co Verfahren zum diskontinuierlichen profilschleifen bzw. profilfraesen von zahnraedern
DE4243749A1 (de) * 1992-12-23 1994-06-30 Rueggeberg August Fa Schleifwerkzeug, insbesondere Feinschleifwerkzeug, und Verfahren zu dessen Herstellung
JP2002126993A (ja) * 2000-10-25 2002-05-08 Shigeru Hoyashita 歯車の製造法及び該加工装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1194566A (en) * 1916-08-15 stewart
US2660009A (en) * 1952-01-05 1953-11-24 Lyon Inc Abrading wheel
US3623275A (en) * 1969-11-10 1971-11-30 Michigan Tool Co Composite abrasive finishing tool
US4354328A (en) * 1980-02-11 1982-10-19 Masato Ainoura Screw type hone assembly for the honing of gears
US6174223B1 (en) * 1999-01-14 2001-01-16 Sumitomo Heavy Industries, Ltd. Method and apparatus for polishing external-tooth gears

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150290730A1 (en) * 2014-04-09 2015-10-15 KAPP Werkzeugmaschinen GmbH Method for hard fine machining of a workpiece with a worm-shaped cutting tool
US9393631B2 (en) * 2014-04-09 2016-07-19 KAPP Werkzeugmaschinen GmbH Method for hard fine machining of a workpiece with a worm-shaped cutting tool
JP2020037159A (ja) * 2018-09-05 2020-03-12 株式会社ニートレックス本社 曲がり歯傘歯車用研磨体、及び曲がり歯傘歯車の研磨方法
JP7141693B2 (ja) 2018-09-05 2022-09-26 株式会社ニートレックス本社 曲がり歯傘歯車用研磨体、及び曲がり歯傘歯車の研磨方法
JP2020196095A (ja) * 2019-06-03 2020-12-10 株式会社ニートレックス本社 溝研磨体
JP7285552B2 (ja) 2019-06-03 2023-06-02 株式会社ニートレックス本社 溝研磨体
US12179278B2 (en) 2019-08-29 2024-12-31 Noritake Co., Limited Multilayer grindstone for gear grinding
US20230278120A1 (en) * 2020-06-30 2023-09-07 3M Innovative Properties Company Process of grinding and polishing gear wheels
US20220379395A1 (en) * 2021-05-25 2022-12-01 Klingelnberg Gmbh Method for machining and measuring workpieces

Also Published As

Publication number Publication date
DE102007036000A1 (de) 2009-02-05
ATE513653T1 (de) 2011-07-15
CA2695029C (fr) 2012-09-11
CA2695029A1 (fr) 2009-02-05
WO2009015643A3 (fr) 2009-06-11
WO2009015643A2 (fr) 2009-02-05
DE102007036000B4 (de) 2015-12-31
EP2170559B1 (fr) 2011-06-22
EP2170559A2 (fr) 2010-04-07

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Legal Events

Date Code Title Description
AS Assignment

Owner name: JAHNEL-KESTERMANN GETRIEBEWERKE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WAWRO, HORST;REEL/FRAME:024473/0734

Effective date: 20100218

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE