EP3852962A1 - Verfahren und vorrichtung zum herstellen einer verzahnung eines zahnrads mit einem werkzeug - Google Patents
Verfahren und vorrichtung zum herstellen einer verzahnung eines zahnrads mit einem werkzeugInfo
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000003801 milling Methods 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 238000003754 machining Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018007354 | 2018-09-18 | ||
PCT/EP2019/025292 WO2020057777A1 (de) | 2018-09-18 | 2019-09-03 | Verfahren und vorrichtung zum herstellen einer verzahnung eines zahnrads mit einem werkzeug |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3852962A1 true EP3852962A1 (de) | 2021-07-28 |
Family
ID=67875423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19765412.2A Pending EP3852962A1 (de) | 2018-09-18 | 2019-09-03 | Verfahren und vorrichtung zum herstellen einer verzahnung eines zahnrads mit einem werkzeug |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3852962A1 (de) |
DE (1) | DE102019006170A1 (de) |
WO (1) | WO2020057777A1 (de) |
Family Cites Families (10)
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 (en) * | 1991-04-15 | 1992-10-29 | Crown Gear B.V. | Method for finishing hardened crown wheels |
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 |
EP3669102A1 (de) | 2017-08-16 | 2020-06-24 | Sew-Eurodrive GmbH & Co. KG | Zahnrad, maschine zum herstellen eines zahnrads und verfahren zum herstellen der verzahnung eines zahnrads |
-
2019
- 2019-09-03 EP EP19765412.2A patent/EP3852962A1/de active Pending
- 2019-09-03 WO PCT/EP2019/025292 patent/WO2020057777A1/de unknown
- 2019-09-03 DE DE102019006170.5A patent/DE102019006170A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
DE102019006170A1 (de) | 2020-03-19 |
WO2020057777A1 (de) | 2020-03-26 |
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