EP1276581A2 - Outil de coupe profile pour la production de pignons coniques spiraux ou "hypoid" - Google Patents

Outil de coupe profile pour la production de pignons coniques spiraux ou "hypoid"

Info

Publication number
EP1276581A2
EP1276581A2 EP00989925A EP00989925A EP1276581A2 EP 1276581 A2 EP1276581 A2 EP 1276581A2 EP 00989925 A EP00989925 A EP 00989925A EP 00989925 A EP00989925 A EP 00989925A EP 1276581 A2 EP1276581 A2 EP 1276581A2
Authority
EP
European Patent Office
Prior art keywords
profile
section
tool
generating
nth order
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.)
Ceased
Application number
EP00989925A
Other languages
German (de)
English (en)
Inventor
Josef Sicklinger
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 EP1276581A2 publication Critical patent/EP1276581A2/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B23F21/02—Grinding discs; Grinding worms
    • B23F21/023—Face-mill-type, i.e. cup-shaped, grinding wheels
    • 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
    • B23F21/02—Grinding discs; Grinding worms
    • 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
    • B23F21/12—Milling tools
    • B23F21/14—Profile cutters of disc type
    • 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
    • B23F21/12—Milling tools
    • B23F21/22—Face-mills for longitudinally-curved gear teeth

Definitions

  • the present invention relates to a profile tool for machining workpieces in the form of spiral and hypoid bevel gears, in particular for motor vehicle transmissions, according to the preamble of claim 1.
  • Chamfer on the tooth base is required if the cutting wheel also produces a head edge break during gear hobbing. In many cases, a rounding or chamfer is also provided as a transition from the active flank to the outer diameter, which is often roughly tolerated. Special gears are used for special applications, e.g. B. the so-called Symmarc gears for heavy-duty gearboxes.
  • the CNC dresser can have a rotating dressing tool in the form of a diamond roller.
  • the vertical position of the axis of rotation of the diamond roller is determined by the working area.
  • the dressing spindle is arranged on a cross slide that can be moved in two CNC axes.
  • the diamond form roller is guided along the contour of the grinding wheel, its geometric parameters, i. H. the profile radius and the diameter are taken into account.
  • Diamond form rollers have a considerably higher stability of the profile radius compared to the standing dressing tools, so that even grinding wheel contours with a large profile angle range can be precisely dressed. They are therefore suitable for both partial hob grinding and profile grinding.
  • the grinding wheel profile coordinates i.e. H.
  • the target contour is calculated using special software based on the workpiece data, taking into account the specific conditions of the gear hobbing or profile grinding.
  • the calculated grinding wheel profiles are basic forms that can be described mathematically, namely straight lines for partial hob grinding and involutes for profile grinding. Most known CNC controls can only process straight lines, arcs or splines. If the basic shapes are to be modified for the reasons described above, If they are superimposed, they must generally be described by tables of support points due to the complex calculation.
  • the object of the present invention is to propose a profile tool with which the design options in the design, taking into account the growing demands on the functionality of bevel gear sets, in particular the smoothness, the load-bearing capacity and the relocability, as well as with regard to simple assembly and economical production Development of bevel drives improved and special profile shapes made possible.
  • the invention therefore provides that the profile of a profile tool for the machining of spiral and hypoid bevel gears defined by the exclusive use of straight lines and circles and their combinations is changed in the radial direction by superimposing an n-th order polynomial.
  • the profiles of these sections then result from the radial overlay of the conventional profile elements, ie straight line and / or circle, with the new profile element, ie the nth order polynomial.
  • the coordinate origin can be freely selected for each polynomial used and in the simplest case lies at the transition from one section to the other.
  • n-th order polynomials for defining the tool profile shape is that additional degrees of freedom can be added via the coefficients Ki to generate the workpiece geometry. This extends the design options in the development of bevel gears and enables special profile shapes. The profile deviations, for example on a ring gear, can be significantly reduced.
  • the generation of the tool profile shape via the machine kinematics is state of the art. This can be done on the production machine as well as on a special machine for tool manufacture or tool reprocessing.
  • the profile shapes according to the invention can be produced on the tool by appropriate development or adaptation of the software. The invention is explained in more detail below with reference to the drawing, in which an advantageous exemplary embodiment of a profile tool designed according to the invention is shown. Show it:
  • Fig. 1 shows a radial section through such a tool
  • Fig. 2 is an enlarged view of part of the
  • FIG. 1 shows a radial section through a profile tool designed according to the invention, which is suitable for machining spiral and hypoid bevel gears, for example for the bevel drive of a motor vehicle transmission.
  • profile element is added to these known profile sections in the form of straight lines and circles an nth order polynomial is described.
  • This profile element can optionally be used in profile sections 3 to 5, the profile shape within these individual sections resulting from the radial superimposition of the two profile elements, ie a straight line and / or a circle with the nth order polynomial.
  • the coordinate origin for each polynomial used can be freely selected and in the simplest case lies at the transition from one section to the adjacent section.
  • the individual polynomial can, as shown in FIG. 2, be defined as follows:
  • ⁇ _rp K 2 * ⁇ _xp 2 + K 3 * ⁇ _xp 3 + ... K i * ⁇ _xp i + ... + K n * ⁇ _xp n
  • ⁇ _rp ⁇ (K x * ⁇ _xp xl )
  • the coefficients Ki are real numbers that can be freely selected for each section as required and can also assume the value 0 in special cases.
  • profile shapes which are defined by point sequences or splines if they are used as a combination of the profile elements described above (straight line, circle and polynomial) in the effective range, ie chip formation on the workpiece with a maximum len radial deviation of 0.003 mm can be approximated and if the cheapest approximation by straight line and circle is less precise.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Gear Processing (AREA)

Abstract

L'invention concerne un outil profilé pour l'usinage par enlèvement de copeaux de pièces se présentant sous la forme de pignons spiraux coniques et de pignons coniques hypoïdes destinées en particulier à des véhicules automobiles. Cet outil profilé présente plusieurs parties profilées sous forme de cercles ou de droites. Un profil, qui est un polynôme du n-ième ordre est, au choix, superposé radialement à certaines de ces parties profilées.
EP00989925A 1999-12-06 2000-11-30 Outil de coupe profile pour la production de pignons coniques spiraux ou "hypoid" Ceased EP1276581A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19958675 1999-12-06
DE19958675A DE19958675A1 (de) 1999-12-06 1999-12-06 Profilwerkzeug
PCT/EP2000/012013 WO2001041960A2 (fr) 1999-12-06 2000-11-30 Outil profile

Publications (1)

Publication Number Publication Date
EP1276581A2 true EP1276581A2 (fr) 2003-01-22

Family

ID=7931544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00989925A Ceased EP1276581A2 (fr) 1999-12-06 2000-11-30 Outil de coupe profile pour la production de pignons coniques spiraux ou "hypoid"

Country Status (4)

Country Link
US (1) US20020182998A1 (fr)
EP (1) EP1276581A2 (fr)
DE (1) DE19958675A1 (fr)
WO (1) WO2001041960A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8267624B2 (en) * 2005-06-27 2012-09-18 The Gleason Works Full point width cutting blades
PL3351326T3 (pl) * 2007-02-26 2022-02-14 Greenleaf Technology Corporation Sposób obróbki skrawaniem szczeliny
US8950076B2 (en) 2011-07-25 2015-02-10 Bettcher Industries, Inc. Power operated rotary knife
EP3120960B1 (fr) * 2015-07-20 2023-06-14 Klingelnberg AG Procede de retraitement d'une roue conique dans la zone d'une tete de dent, machine de traitement de roues coniques
CN114799362A (zh) * 2022-06-28 2022-07-29 湖南中大创远数控装备有限公司 磨削机、碗形砂轮及碗形砂轮的修形方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1098332B (de) * 1955-07-30 1961-01-26 Jin Inoue Schleifwerkzeug zur Bearbeitung von Zahnraedern mit in ihrem Laengsverlauf gekruemmten und Evolventenprofil besitzenden Zaehnen
CH421665A (de) * 1964-09-05 1966-09-30 Zahnschneidemaschinenfab Modul Maschine zum Bearbeiten von Kegelrädern mit gekrümmtem oder geradem Zahnverlauf
US4260299A (en) * 1979-05-25 1981-04-07 The Gleason Works Cutting tools having compound cutting faces
US4644814A (en) * 1985-07-22 1987-02-24 Rouverol William S Wide-angle gearing
EP0328482B1 (fr) * 1988-02-12 1993-07-14 Reishauer Ag. Outil rotatif en forme de disque pour le profilage de vis de meulage cylindriques pour la rectification de roues dentées
US5083474A (en) * 1991-06-04 1992-01-28 Axicon Gear Company Zero transmission error gearing
DE4210710C2 (de) * 1992-03-27 2003-03-20 Niles Werkzeugmaschinen Gmbh Verfahren und Einrichtung zum Schleifen rillenförmiger Außenprofile eines Werkstückes
US5374142A (en) * 1992-12-03 1994-12-20 Dana Corporation Tip relief cutter blades
DE4305409A1 (de) * 1993-02-22 1994-08-25 Ibh Bernhard Hilpert Ingenieur Verfahren zur numerischen Bahnsteuerung
DE4420225C1 (de) * 1994-06-07 1995-06-22 Niles Werkzeugmasch Gmbh Verfahren zum Zahnflankenprofilschleifen oder -fräsen außenschrägverzahnter Werkstücke
US5802921A (en) * 1996-08-13 1998-09-08 Rouverol; William S. Maximum power density gearing
US6205879B1 (en) * 1999-06-28 2001-03-27 Visteon Global Technologies, Inc. Helical and spur gear drive with double crowned pinion tooth surfaces and conjugated gear tooth surfaces

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0141960A3 *

Also Published As

Publication number Publication date
WO2001041960A3 (fr) 2001-11-01
DE19958675A1 (de) 2001-06-07
US20020182998A1 (en) 2002-12-05
WO2001041960A2 (fr) 2001-06-14

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