EP3852962A1 - Procédé et dispositif de fabrication d'une denture d'une roue dentée à l'aide d'un outil - Google Patents

Procédé et dispositif de fabrication d'une denture d'une roue dentée à l'aide d'un outil

Info

Publication number
EP3852962A1
EP3852962A1 EP19765412.2A EP19765412A EP3852962A1 EP 3852962 A1 EP3852962 A1 EP 3852962A1 EP 19765412 A EP19765412 A EP 19765412A EP 3852962 A1 EP3852962 A1 EP 3852962A1
Authority
EP
European Patent Office
Prior art keywords
tool
toothing
rotation
axis
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.)
Pending
Application number
EP19765412.2A
Other languages
German (de)
English (en)
Inventor
Michael Josef Herberger
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.)
SEW Eurodrive GmbH and Co KG
Original Assignee
SEW Eurodrive GmbH and Co KG
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 SEW Eurodrive GmbH and Co KG filed Critical SEW Eurodrive GmbH and Co KG
Publication of EP3852962A1 publication Critical patent/EP3852962A1/fr
Pending 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
    • B23F21/005—Tools specially adapted for use in machines for manufacturing gear teeth with plural tools on a common axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F15/00—Methods or machines for making gear wheels of special kinds not covered by groups B23F7/00 - B23F13/00
    • B23F15/06—Making gear teeth on the front surface of wheels, e.g. for clutches or couplings with toothed faces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F9/00—Making gears having teeth curved in their longitudinal direction
    • B23F9/08—Making gears having teeth curved in their longitudinal direction by milling, e.g. with helicoidal hob
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears

Definitions

  • the invention relates to a method and a device for producing a toothing of a gearwheel with a tool.
  • the invention is therefore based on the object, the production of gears
  • the object is achieved in the method according to the features specified in claim 1 and in the device according to the features specified in claim 12.
  • Important features of the invention in the method for producing a toothing of a gearwheel with a tool, in particular a milling cutter, are that the tool can be rotated about a first axis of rotation and the gearwheel can be rotated about a second axis of rotation, a first working area of the Tool the
  • a second work area of the tool produces the toothing, the second work area being spaced from the first work area, in particular in the direction of the first axis of rotation, or adjacent to the first work area, in particular wherein the first and second work areas are coaxially aligned with each other.
  • the advantage here is that it increases the service life of the tool and thereby reduces the cost of producing the toothing.
  • the first axis of rotation is aligned perpendicular to the second axis of rotation.
  • the teeth can be designed as Spiroplan teeth.
  • the toothing covers a face toothing which has a first radial distance area, the radial direction being related to the second axis of rotation, in particular the smallest radial distance of the radial distance area being finite, in particular therefore greater than zero.
  • the tool is arranged to be displaceable parallel to the first axis of rotation, in particular the displacement position of the tool in the first method step and the displacement position of the tool in the second method step being different from one another.
  • the advantage here is that different working areas of the tool can be used one after the other.
  • the first axis of rotation is a distance from the second axis of rotation, in particular center distance.
  • the advantage here is that the toothing as
  • the time is one after the second
  • a third working area of the tool produces the toothing, the third working area being spaced from the second working area, in particular in the direction of the first axis of rotation, or adjacent to the second working area.
  • the gear wheel has an annular, in particular hollow cylindrical, base body and a hub area, in particular a hollow one
  • the hub area is molded onto the base body with a conical outer shape.
  • the advantage here is that a high degree of strength can be achieved, even if the center of gravity of a shear force entry into the gearwheel coming from a rotationally connected shaft is arranged eccentrically to the base body.
  • the toothing is arranged on the side of the base body facing away from the hub area.
  • the toothing has teeth, the teeth, in particular tooth heads of the teeth and / or the tooth gaps between the teeth, each increasing in the radial distance region covered by the toothing
  • Radial distance have a monotonically increasing circumferential angle, in particular where the radial distance and circumferential angle are related to the axis of rotation of the gear, in particular where the teeth do not extend purely radially.
  • the teeth can be designed as Spiroplan teeth.
  • the gear wheel has a free space which radially covers the radial distance area arranged within the radial distance area covered by the toothing and in the axial direction covers the area covered by the toothing in the axial direction and is completely circumferential in the circumferential direction, the free space being at least partially is covered by the tool, in particular by working areas of the tool.
  • the free space relates to the smallest imaginary solid cylinder that just circumscribes the gear, that is, accommodates it.
  • the free space is therefore the imaginary material that must be removed from the solid cylinder in order to maintain the gear.
  • the toothing of the gearwheel protrudes axially on the gearwheel in relation to the second axis of rotation, so that during the machining of the gearwheel the tool is spaced radially within the radial distance range covered by the toothing and radially outside the radial distance range covered by the toothing and / or does not touch the gearwheel.
  • the method according to the invention is thus easy to use. Because the face toothing projects axially in relation to the second axis of rotation.
  • the face gear is spaced radially from the second and from the first axis of rotation.
  • the device has the gearwheel and the tool and drives for their axes of rotation, which can be operated synchronously in such a way that a rolling movement can be carried out, in particular when the tool is moved in the direction of the
  • Axis of rotation of the tool the tool is rotated in proportion to the displacement.
  • Toothing is moved out and then the displacement is carried out as a rolling movement, that is to say with twisting proportional to the displacement, and then the tool is then moved back into the toothing.
  • FIG. 1 shows the machining of a gear toothed gear 25, with a tool 2 machining the toothing.
  • FIG. 2 shows an associated sectional view, a first working area 21 of the tool 2 carrying out the machining.
  • a second working area 22 of the tool 2 carries out the machining.
  • a third working area 23 of the tool 2 carries out the machining.
  • a fourth working area 24 of the tool 2 carries out the machining.
  • FIG. 6 shows a top view belonging to FIG. 2.
  • the milling cutter has four working areas (21, 22, 23, 24) which are arranged one behind the other in the direction of the axis of rotation of the tool 2, in particular a milling cutter.
  • the gear 25 to be machined by the tool has an annular base body, on the side facing the tool 2 of which a toothing 1, in particular a face toothing, is arranged.
  • the basic body has an essentially cylindrical shape.
  • the gearwheel is preferably designed as a Spiroplan wheel. Alternatively, is also a
  • Aligned annular hub portion 26 formed. This is preferably
  • Hub area 26 is formed with a conical outer shape.
  • the hub area 26 and the base body are plugged onto a shaft as a hollow shaft part and connected to this shaft in a rotationally fixed manner.
  • the first work area 21 is initially in use. However, if the permissible wear of the tool cutting edges or the permissible service life is exceeded, the second work area 22 is used and thus replaces the first work area 21. Accordingly, the third work area 23 later replaces the second and finally the fourth the third.
  • the tool is moved out of the toothing 1 axially, that is to say parallel to the axis of rotation of the gear wheel 25, and then moved in the direction of the axis of rotation of the tool 2.
  • the tool 2 is then moved back to the gear 25 and the toothing is further worked out or machined.
  • a displacement area D is provided on both sides of the working area of the tool 2 in use, which is provided for machining the radially inside and / or outside edges of the toothing.
  • the length L of the tool can be divided into the areas.
  • the gear is splined, with the largest radial distance between the teeth 1 with Re2 and the smallest radial distance between the teeth with Ri2.
  • F Re2 - Ri2 applies.
  • the center distance between the axis of rotation of the tool 2 and the axis of rotation of the gear 25 is denoted by aW.
  • L is the length of the maximum area of the tool available for machining. The tool can thus advantageously be used with a longer service life and does not have to be replaced after a single working area has been worn out.

Landscapes

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

Abstract

L'invention concerne un procédé et un dispositif destinés à fabriquer une denture d'une roue dentée (1) à l'aide d'un outil (2), en particulier d'une fraise, l'outil pouvant tourner autour d'un premier axe de rotation, et la roue dentée pouvant tourner autour d'un second axe de rotation, une première région de travail (21) de l'outil fabriquant la denture au cours d'une première étape de procédé, une seconde région de travail (22, 23, 24) de l'outil fabriquant la denture au cours d'une seconde étape de procédé succédant à la première étape de procédé, la seconde région de travail étant espacée de la première région de travail, en particulier en direction du premier axe de rotation, ou étant adjacente à la première région de travail, en particulier les première et seconde régions de travail étant orientées coaxialement l'une par rapport à l'autre.
EP19765412.2A 2018-09-18 2019-09-03 Procédé et dispositif de fabrication d'une denture d'une roue dentée à l'aide d'un outil Pending EP3852962A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018007354 2018-09-18
PCT/EP2019/025292 WO2020057777A1 (fr) 2018-09-18 2019-09-03 Procédé et dispositif de fabrication d'une denture d'une roue dentée à l'aide d'un outil

Publications (1)

Publication Number Publication Date
EP3852962A1 true EP3852962A1 (fr) 2021-07-28

Family

ID=67875423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19765412.2A Pending EP3852962A1 (fr) 2018-09-18 2019-09-03 Procédé et dispositif de fabrication d'une denture d'une roue dentée à l'aide d'un outil

Country Status (3)

Country Link
EP (1) EP3852962A1 (fr)
DE (1) DE102019006170A1 (fr)
WO (1) WO2020057777A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3618435A1 (de) * 1985-08-02 1987-03-05 Interspark S A Verfahren zur herstellung von an zwei koerpern vorgesehenen verzahnungen sowie nach dem verfahren hergestellte getriebe
WO1992018279A1 (fr) * 1991-04-15 1992-10-29 Crown Gear B.V. Procede de finition de couronnes de differentiel trempees
JP4895649B2 (ja) * 2006-03-20 2012-03-14 アイシン精機株式会社 フェースギヤ歯面をもつ部材の製造方法
JP5138798B2 (ja) * 2011-07-13 2013-02-06 三菱重工業株式会社 歯車研削方法
DE102013001197A1 (de) * 2013-01-24 2014-07-24 Liebherr-Verzahntechnik Gmbh Werkzeug zum Schleifen von verzahnten Werkstücken mit Kollisionskontur
DE102013110130B4 (de) 2013-09-13 2015-10-01 Präwema Antriebstechnik GmbH Werkzeug, Verfahren und Maschine zum Erzeugen eines Verzahnungsprofils an einem Werkstück durch Wälzschälen
JP2016175134A (ja) 2015-03-18 2016-10-06 株式会社小松製作所 歯切り加工方法
DE102016113512A1 (de) * 2016-07-21 2018-01-25 Profilator Gmbh & Co. Kg Verfahren zur Fertigung eines einsatzgehärteten Zahnrades, insbesondere mit einer Innenverzahnung
JP6367889B2 (ja) * 2016-10-25 2018-08-01 三菱重工工作機械株式会社 スカイビング加工用カッタ
WO2019034286A1 (fr) 2017-08-16 2019-02-21 Sew-Eurodrive Gmbh & Co. Kg Roue dentée, machine pour fabriquer une roue dentée et procédé pour fabriquer la denture d'une roue dentée

Also Published As

Publication number Publication date
WO2020057777A1 (fr) 2020-03-26
DE102019006170A1 (de) 2020-03-19

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