US3894418A - Apparatus for finishing gear teeth - Google Patents

Apparatus for finishing gear teeth Download PDF

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Publication number
US3894418A
US3894418A US452529A US45252974A US3894418A US 3894418 A US3894418 A US 3894418A US 452529 A US452529 A US 452529A US 45252974 A US45252974 A US 45252974A US 3894418 A US3894418 A US 3894418A
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US
United States
Prior art keywords
gear
finishing
work
chamfering
burring
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
US452529A
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English (en)
Inventor
Adolf Horl
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
Application granted granted Critical
Publication of US3894418A publication Critical patent/US3894418A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B21H5/022—Finishing gear teeth with cylindrical outline, e.g. burnishing
    • 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

  • ABSTRACT Apparatus for compressively finishing preformed gear teeth by means of a combination of non-cutting guide and chamfering gears acting on one side of a work gear with an additional non-cutting smoothing or finishing gear acting on the opposite side of the work gear.
  • the guide gear is sandwiched between the chamfering gears and acts with some tooth flank smoothing effect whereas the smoothing or finishing gear achieves the main flank finishing and compressively removes burring of the chamfered tooth corners.
  • the combination solves the problem of the very expensive too] work required when the composite gears must be set with respect to each other so precisely as to eliminate all burring. By eliminating the considerable precision necessary, some burring of the chamfered corners of the work gear is permitted. but this burring is smoothed out by the diametrically opposed finishing gear.
  • the present invention eliminates the tooling precision and permits burring of the chamfered work gear corners which burring is then smoothed out by a finishing gear.
  • the arrangement differs in that respect from the patent and also in the respect that the driving rotation of the system is provided for by the finishing gear rather than by the work gear as in the patent. Further differences resides in the fact that while the rotational axis of the finishing gear is fixed the work gear and the composite chamfering and guide gears have mounts which are slideable to effect engagement of the tool gears with work gears. A hydraulic ram is used to motivate the composite tool gear against the work gear which in turn is motivated against the finishing gear.
  • the apparatus comprises the machine bed 1 having a boss 2 constructed as bearing support for the shaft 3 of a finishing gear 5 supported on a chuck 4 and secured by bolt 6. It will be understood (as shown in the patent) that suitable motor and controls effect rotation of shaft 3 to rotate finishing gear 5.
  • Carriage 8 rotatively supports work gears such as work gear 10 to be finished and chamfered and carriage 9 rotatively supports the composite tool gear device which consist of a guide gear 1 1 sandwiched between chamfering gears 12 and 13.
  • a fixed hydraulic ram 14 on the bed can provide movement of carriage 9 to effect mutual engagement of the several gears as will be clearly understood.
  • gear 5 is diametrically opposite the composite gear device.
  • an adjustable stop (not shown) is arranged to limit the movement of the hydraulic ram to the exact depth which is desired for the guide gear 11 and the finishing gear 5 to enter between the preformed teeth of a work gear 10. Any conventional limit stop may be used for such purpose and persons skilled in the art, would, of course, be able to devise as a matter or routine a motion limiting device for the ram.
  • guide gear 11 will have a certain amount of flank smoothin action depending upon the design of the gear, or for purposes of economy it may be designed merely as a guide or drive gear to effect rotative drive of the chamfering gears 12 and 13.
  • the main point is that no precise positioning of the composite gear 11, 12 and 13 is practiced in this invention, whereby a tooling economy is effected, some burring of the chamfered tooth edges of the work gear being thus permitted.
  • the finishing gear 5 is provided with teeth which are wider than the teeth of the work gear 10 so that any burring is compressed and polished along with the flanks of the work gear teeth.
  • the apparatus while requiring an additional component as compared with the patent apparatus effects an economy not only by eliminating precise coaction of the composite tool gears but also by permitting longer periods of operation due to the fact that wear between the composite gears does not cause deterioration of a necessary precision coaction.
  • An apparatus for chamfering and finishing the teeth of preformed work gears by effecting compression thereof between a chamfering gear device and a finishing gear comprising in combination:
  • a support means having a finishing gear on a fixed rotative axis; a chamfering gear device and a first movable mount therefor comprising means for securing said chamfering gear device freely rotative thereon;
  • a second movable mount disposed intermediate said finishing gear and said first movable mount and having means for supporting a work gear for free rotation thereon;
  • said support comprises a longitudinally extending bed and said mounts comprise carriages slidably carried thereon in alignment with each other; including a hydraulic ram for effecting movement of said first mount on said bed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Processing (AREA)
US452529A 1973-03-29 1974-03-19 Apparatus for finishing gear teeth Expired - Lifetime US3894418A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2315702A DE2315702A1 (de) 1973-03-29 1973-03-29 Vorrichtung zum spanlosen abschraegen der stirnkanten von vorverzahnten zahnraedern

Publications (1)

Publication Number Publication Date
US3894418A true US3894418A (en) 1975-07-15

Family

ID=5876351

Family Applications (1)

Application Number Title Priority Date Filing Date
US452529A Expired - Lifetime US3894418A (en) 1973-03-29 1974-03-19 Apparatus for finishing gear teeth

Country Status (3)

Country Link
US (1) US3894418A (ja)
CH (1) CH563832A5 (ja)
DE (1) DE2315702A1 (ja)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583271A (en) * 1983-04-28 1986-04-22 Illinois Tool Works Inc. Method and apparatus for burnishing splines and gears using synchronously rotated gears
US5152061A (en) * 1992-02-19 1992-10-06 Tesma International Inc. Cold-forming of toothed wheels from sheet steel
US5203223A (en) * 1992-02-19 1993-04-20 Tesma International Inc. Cold-forming of toothed wheels from sheet steel
US5221513A (en) * 1992-01-31 1993-06-22 The Penn State Research Foundation Apparatus and method for net shape finishing of gears
US5237744A (en) * 1992-02-19 1993-08-24 Tesma International Inc. Method of cold-forming toothed wheels
US5774986A (en) * 1995-09-22 1998-07-07 Nissan Motor Co., Ltd. Method and apparatus for cold-forming of toothed wheels from sheet metal
US5918495A (en) * 1995-09-06 1999-07-06 Toyota Jidosh Kabushiki Kaisha Multistage gear-rolling apparatus
US5930896A (en) * 1996-03-15 1999-08-03 Nissan Motor Co., Ltd. Apparatus and method for forming a gear
US6050755A (en) * 1997-08-22 2000-04-18 The Gleason Works Apparatus for chamfering and deburring gear tooth end edges
US6170156B1 (en) * 1999-03-24 2001-01-09 General Motors Corporation Gear tooth smoothing and shaping process
US20020197121A1 (en) * 2001-06-21 2002-12-26 Johann Mall Machine for deburring and fine machining of tooth flanks of toothed workpieces
US20080168640A1 (en) * 2007-01-12 2008-07-17 Sil Han Gear burnisher method and apparatus
US20090036031A1 (en) * 2007-07-31 2009-02-05 Hua Dongyun Coating assisted surface finishing process
WO2015036373A3 (de) * 2013-09-16 2015-05-28 Felsomat Gmbh & Co. Kg Verfahren zum anfasen und glätten von verzahnten werkstücken

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233518A (en) * 1963-12-05 1966-02-08 Nat Broach & Mach Method and apparatus for chamfering gear teeth
US3552167A (en) * 1968-09-26 1971-01-05 Lear Siegler Inc Gear rolling equipment
US3735619A (en) * 1972-01-27 1973-05-29 Lear Siegler Inc Gear roll chamfering

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233518A (en) * 1963-12-05 1966-02-08 Nat Broach & Mach Method and apparatus for chamfering gear teeth
US3552167A (en) * 1968-09-26 1971-01-05 Lear Siegler Inc Gear rolling equipment
US3735619A (en) * 1972-01-27 1973-05-29 Lear Siegler Inc Gear roll chamfering

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583271A (en) * 1983-04-28 1986-04-22 Illinois Tool Works Inc. Method and apparatus for burnishing splines and gears using synchronously rotated gears
US5221513A (en) * 1992-01-31 1993-06-22 The Penn State Research Foundation Apparatus and method for net shape finishing of gears
WO1993014894A1 (en) * 1992-01-31 1993-08-05 The Penn State Research Foundation Apparatus and method for net shape finishing of gears
US5152061A (en) * 1992-02-19 1992-10-06 Tesma International Inc. Cold-forming of toothed wheels from sheet steel
US5203223A (en) * 1992-02-19 1993-04-20 Tesma International Inc. Cold-forming of toothed wheels from sheet steel
US5237744A (en) * 1992-02-19 1993-08-24 Tesma International Inc. Method of cold-forming toothed wheels
AU652887B2 (en) * 1992-02-19 1994-09-08 Tesma International Inc. Method of cold-forming toothed wheels
US5918495A (en) * 1995-09-06 1999-07-06 Toyota Jidosh Kabushiki Kaisha Multistage gear-rolling apparatus
US5774986A (en) * 1995-09-22 1998-07-07 Nissan Motor Co., Ltd. Method and apparatus for cold-forming of toothed wheels from sheet metal
US5930896A (en) * 1996-03-15 1999-08-03 Nissan Motor Co., Ltd. Apparatus and method for forming a gear
US6050755A (en) * 1997-08-22 2000-04-18 The Gleason Works Apparatus for chamfering and deburring gear tooth end edges
US6170156B1 (en) * 1999-03-24 2001-01-09 General Motors Corporation Gear tooth smoothing and shaping process
US20020197121A1 (en) * 2001-06-21 2002-12-26 Johann Mall Machine for deburring and fine machining of tooth flanks of toothed workpieces
US6840720B2 (en) * 2001-06-21 2005-01-11 The Gleason Works Machine for deburring and fine machining of tooth flanks of toothed workpieces
US20080168640A1 (en) * 2007-01-12 2008-07-17 Sil Han Gear burnisher method and apparatus
US20090036031A1 (en) * 2007-07-31 2009-02-05 Hua Dongyun Coating assisted surface finishing process
WO2015036373A3 (de) * 2013-09-16 2015-05-28 Felsomat Gmbh & Co. Kg Verfahren zum anfasen und glätten von verzahnten werkstücken
CN106061663A (zh) * 2013-09-16 2016-10-26 费尔索梅特有限及两合公司 用于对有齿的工件进行倒角和磨光的方法
CN106061663B (zh) * 2013-09-16 2018-05-18 费尔索梅特有限及两合公司 用于对有齿的工件进行倒角和磨光的方法

Also Published As

Publication number Publication date
DE2315702A1 (de) 1974-10-10
CH563832A5 (ja) 1975-07-15

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