WO2010072280A1 - Wälzfräser - Google Patents
Wälzfräser Download PDFInfo
- Publication number
- WO2010072280A1 WO2010072280A1 PCT/EP2009/007346 EP2009007346W WO2010072280A1 WO 2010072280 A1 WO2010072280 A1 WO 2010072280A1 EP 2009007346 W EP2009007346 W EP 2009007346W WO 2010072280 A1 WO2010072280 A1 WO 2010072280A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- segments
- segment
- base body
- longitudinal direction
- hob
- Prior art date
Links
- 230000000875 corresponding effect Effects 0.000 claims description 4
- 230000002596 correlated effect Effects 0.000 claims description 2
- 238000010408 sweeping Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 210000003746 feather Anatomy 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/04—Plain cutters, i.e. having essentially a cylindrical or tapered cutting surface of substantial length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
- B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
- B23C5/22—Securing arrangements for bits or teeth or cutting inserts
- B23C5/2204—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert
- B23C5/2234—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts fitted on a ring or ring segment
-
- 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
- B23F21/16—Hobs
- B23F21/163—Hobs with inserted cutting elements
- B23F21/166—Hobs with inserted cutting elements in exchangeable arrangement
-
- 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
- Y10T407/00—Cutters, for shaping
- Y10T407/17—Gear cutting tool
- Y10T407/1715—Hob
-
- 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
- Y10T407/00—Cutters, for shaping
- Y10T407/17—Gear cutting tool
- Y10T407/1715—Hob
- Y10T407/1725—Hob including holder having seat for inserted tool
Definitions
- the invention relates to a hob with a helically coiled tooth profile according to the preamble of claim 1.
- Such a hob is disclosed in EP 0 050 270 A2.
- Such hobs with helically coiled tooth profiles are commonly used for the production of tooth profiles in gears, for example in spur gears for transmission.
- cutting bodies are usually arranged distributed along a helical line. These are often designed as cutting inserts, in particular indexable inserts, which are fastened exchangeably to a cross-sectionally roof-shaped carrier.
- the invention has for its object to provide a simple to manufacture hob.
- the hob is characterized in that for the formation of the helically coiled tooth profile a plurality of individual segments is provided, which are mounted on a usually cylindrical base body. Each individual segment covers a limited angular range and preferably has only exactly one helical turn.
- the segments themselves each comprise a segment foot and a segment profile. With the Segmentfuß they are attached to the body. The segment profile is therefore a part of the helically coiled tooth profile.
- the segment profile is arranged obliquely on the segment foot.
- the segment foot itself preferably extends perpendicularly to the longitudinal direction, so that side surfaces delimiting the segment foot run perpendicular to the longitudinal direction over their entire length.
- the particular advantage of this embodiment is the fact that due to the oblique orientation of the segment profile with respect to the Segmentfußes the helical pitch of the tooth profile is imaged within each individual segment by the inclination of the segment profile.
- an additional helical or helical guide on Body are omitted.
- the main body itself is therefore formed without a helical guide.
- the formation of the tooth profile is preferably realized solely by juxtaposing the individual segments on the one hand in the circumferential direction and on the other hand in the longitudinal direction of the base body.
- Spiral pitch is generally understood to mean the distance that two sections of the helical or helical line of the tooth profile have after a 360 ° revolution in the longitudinal direction relative to each other.
- the hob can be mounted and produced in a simple manner. It only need the individual segments to be mounted on the rolling elements.
- the rolling element is formed in a simple manner as a cylinder body. The production of the individual segments themselves is also comparatively simple.
- the segment profile is slanted on the segment foot at an angle that correlates to the helical pitch of the entire tooth profile.
- the segment base may have a plan view which is cuboid in plan view.
- the individual segment feet are lined up in a simple manner in an orientation perpendicular to the longitudinal direction, starting from a peripheral stop abutting each other.
- the Segmentfuß has a width corresponding to the helical pitch.
- the Segmentfuß has a width corresponding to the helical pitch.
- the segments of a row are arranged without offset with respect to one another in the circumferential direction.
- the individual segments are therefore aligned along the longitudinal direction of the base body.
- an even number of segments cover exactly 360 °, and preferably the individual adjoining segments have the same segment angle, ie, they each cover an identical angle.
- three segments per circumference, each 120 ° are provided. Alternatively, these segments can also cover different angles.
- the segment feet of two circumferentially adjacent segments are arranged offset from one another in the longitudinal direction.
- the offset in the longitudinal direction in this case preferably corresponds to the proportion of helical pitch that is imaged by the respective segment profile. This proportion depends on the segment angle that the respective segment sweeps over.
- the offset is therefore 1/3 of the helical pitch.
- This offset is preferably formed in a simple manner in that at the edge of a respective row a compensation segment is arranged which has a compensation width corresponding to the required offset.
- the compensation width is selected and correlated with the helical pitch such that two circumferentially adjoining segment feet are offset in the longitudinal direction in such a way that their segment profiles adjoin one another in alignment.
- the base body preferably has longitudinally extending guides along which the segments are placed on the base body.
- the guides are preferably formed by grooves in which an insert element rests, which projects beyond the incorporated into the base groove and thus forms a kind of stop as a guide for the segments.
- the insert element is expediently designed as a so-called feather key, which in the simplest case is an elongated profile element, in particular made of metal, which is preferably formed in length and width and cross-sectional shape such that it rests in the respective groove except for a tolerance margin.
- the segments have at their segment feet receptacles in which engages the key.
- the images are expediently formed on the edge side. Two mutually adjacent receptacles adjacent segment feet therefore cover together the width of the feather key.
- screw holes At least one, preferably several, for example two or three, screw holes are provided for each of the segments.
- the screw holes of a segment row form screw hole rows, wherein the screw holes of segments adjacent to each other in the circumferential direction, are arranged offset from one another in the longitudinal direction. The offset corresponds to the offset of the segment feet.
- different types of segments are provided, which are arranged alternately in the circumferential direction of the base body.
- two different types are preferably provided which differ only with regard to the arrangement of cutting bodies.
- the cutting bodies are generally preferably designed as indexable inserts.
- the indexable inserts are furthermore preferably of the general type a cross toothing arranged alternately on an inner side and an outer side of a roof-shaped cross-sectional profile of the segment profiles.
- the arrangement of the cutting body on the segment profiles of the different types is now chosen such that the desired mutual arrangement of the cutting body is ensured in a cross-toothing even with successive segment profiles.
- the base expediently has at one end an annular stop to which the individual segments or compensation segments are applied.
- the main body is preferably designed as a hollow cylinder for the preferably form-fitting fastened to a drive shaft of a machine tool.
- 1 is a perspective view of a hob
- 2A-2C are each a side view and end view of a
- FIGS. 3A-3C show a first segment type in different views
- FIGS. 4A-4C show a second segment type in different views
- FIG. 5 shows a main body in a perspective view.
- the hob comprises in the exemplary embodiment a hollow cylindrical, designed in the manner of a drum body 2, on which a tooth profile 3 is applied.
- the tooth profile 3 is helically or helically wound on the cylinder jacket of the main body 2 with a helical pitch s (see FIG.
- the main body 2 (cf., in particular, FIG. 5) has a central shaft receptacle 4 with which it can be fastened to a drive shaft of a machine tool.
- the base body 2 has a ring stop 6.
- a plurality of rows of screw holes 8 are attached.
- 10 extending grooves 12 are introduced in the longitudinal direction.
- each row 16 preferably has at least five segments.
- each row 16 passes over a segment angle ⁇ of exactly 120 °.
- the segments 14A.B of a respective row 16 are circumferentially arranged without offset in the circumferential direction.
- FIG. 2A shows the row 16 forming a first sector
- FIG. 2B the row 16 forming a second sector
- FIG. 2C the row 16 forming a third sector.
- the individual segments 14A.B are each formed from a segment foot 18 and from a segment profile 20 formed on the segment leg 18.
- the segments 14A.B are preferably formed in one piece, so they are machined out of a workpiece.
- the segment profiles 20 of the individual segments 14A, B form a total of the helically coiled tooth profile 3.
- compensating segments 26 are arranged at the edges on the individual rows 16-viewed in the longitudinal direction 10. This balancing segments 26 cause two juxtaposed segments 14A.B are offset from one another in the longitudinal direction 10. This ensures that the segment profiles 20 of two circumferentially adjacent segments 14A 1 B are aligned. The width of these compensation segments 26 is selected accordingly. As can be seen from FIG.
- the first segment 14A of the first sector is fastened immediately adjacent to the ring stop 6.
- a thin compensation segment 26 the width of which corresponds to one third of the width of a normal segment 14A.B, is first arranged on the ring stop 6.
- a balancing segment 26 is provided with 1/3-width.
- a compensation segment 26 with a 2/3 width is arranged directly on the ring stop 6.
- the compensation segments 26 are essentially formed by modified segment feet 18.
- each segment 14A.B is determined by the segment foot 18.
- the width B corresponds to the spiral pitch, ie the distance (in the longitudinal direction 10) between two sections of the helix or helix of the tooth profile 3 after a 360 ° rotation.
- the slope and thus the width B is for example in the range of 22 mm.
- each row 16 comprises a total of eleven segments 14A 1 B.
- the individual segments 14A.B and the individual rows 16 abut each other centrally above the grooves 12.
- insert elements namely feather keys 27 are inserted, eino one hand in the grooves 12 and on the other hand but also engage in corresponding edge-side receptacles 28 (see in particular Figures 3A.4A) on the Segmentfuß 18.
- the grooves 12 together with the feather keys 27 guides for the segments 14A 1 B.
- the segments are preferably 14A 1 B each formed an equal angle range (segment angle ⁇ ) over stroking.
- the pitch of the individual segments 14A.B may also be nonuniform.
- the two segment types 14A 1 B are alternately fixed to each other in the circumferential direction.
- a type B segment is arranged between each two type A segments.
- the segments 14A 1 B are formed in the manner of ring segments.
- the inner diameter dj of the respective segment 14A 1 B (and thus the outer radius of the cylinder jacket of the main body 2) is approximately 165 mm in the exemplary embodiment.
- the outer diameter of the ring segment d a is in the embodiment, for example, 270 mm.
- the segment profile 20 is approximately roof-shaped in cross section.
- cutting bodies 30 are arranged, which are preferably formed as indexable inserts.
- the cutting bodies 30 are each arranged alternately in pairs on one or the other side of the roof.
- the roof-shaped segment profile 20 extends obliquely with respect to the longitudinal direction 10.
- the helix pitch of the helically shaped tooth profile 3 is thus imaged by the inclined position of the segment profile 20 on the segment foot 18.
- the segment base 18 itself is - viewed in a radial projection - rectangular in shape, so that its longitudinal sides parallel to the ring stop 6 and perpendicular to the longitudinal direction 10 extend. From a comparison of Figures 3B and 4B, the difference in the design of the two segment types 14A 1 B can be seen.
- the segment profile 20 is arranged with respect to a segment center M namely only rotated by about 180 °. As a result, in the case of the segment type A according to FIG.
- a pair of cutting bodies 30 are provided on the side facing away from the annular stop 6 on the edge side of the segment 14A.
- the edge-side Schneid stresses- pairs 30 are arranged in the type B on the side facing away from the Figure 4A and the ring stop 6 to be oriented side.
- the segments 14A.B are formed identically.
- Each segment 14 A, B is fastened in the exemplary embodiment, each with three screws 24 on the base body 2.
- the screws 24 are closed after installation, for example with set screws, and glued. This prevents the ingress of dirt.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Processing (AREA)
- Milling Processes (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1109394.5A GB2477477B (en) | 2008-12-16 | 2009-10-13 | Hob |
US13/133,453 US8672589B2 (en) | 2008-12-16 | 2009-10-13 | Hob |
BRPI0922875A BRPI0922875A2 (pt) | 2008-12-16 | 2009-10-13 | fresa envolvente |
CN200980150234.1A CN102245337B (zh) | 2008-12-16 | 2009-10-13 | 螺旋铣刀 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008062147.1 | 2008-12-16 | ||
DE102008062147 | 2008-12-16 | ||
DE102009016257.7A DE102009016257B4 (de) | 2008-12-16 | 2009-04-03 | Wälzfräser |
DE102009016257.7 | 2009-04-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010072280A1 true WO2010072280A1 (de) | 2010-07-01 |
Family
ID=42194252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/007346 WO2010072280A1 (de) | 2008-12-16 | 2009-10-13 | Wälzfräser |
Country Status (6)
Country | Link |
---|---|
US (1) | US8672589B2 (de) |
CN (1) | CN102245337B (de) |
BR (1) | BRPI0922875A2 (de) |
DE (1) | DE102009016257B4 (de) |
GB (1) | GB2477477B (de) |
WO (1) | WO2010072280A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE535941C2 (sv) * | 2011-06-20 | 2013-02-26 | Sandvik Intellectual Property | Fräsverktyg för hobbning samt segment härför |
US9216461B2 (en) * | 2011-07-19 | 2015-12-22 | Iscar, Ltd. | Cutting body configured for fine-tuning and metal-working machine tool comprising a plurality thereof |
SE536487C2 (sv) * | 2012-05-09 | 2013-12-17 | Sandvik Intellectual Property | Fräsverktyg för hobbning |
EP2735400B1 (de) * | 2012-11-22 | 2023-03-01 | Sandvik Intellectual Property AB | Anordnung zur Steuerung des Prozesses von spanabhebender Drehbearbeitung eines Werkstückes, und ein Schneidwerkzeug für spanabhebende Drehbearbeitung |
DE102012111401A1 (de) * | 2012-11-26 | 2014-05-28 | Walter Ag | Glockenfräser |
KR101535181B1 (ko) * | 2013-09-24 | 2015-07-08 | 한국야금 주식회사 | 인덱서블 호브 |
EP3055094B1 (de) * | 2013-10-10 | 2021-10-13 | Hyperion Materials & Technologies (Sweden) AB | Hohler abwälzfräser und verfahren zum formen dieses hohlen abwälzfräsers |
CN104588785B (zh) * | 2014-12-05 | 2017-01-11 | 重庆大学 | 一种内冷式滚刀 |
DE202015004072U1 (de) * | 2015-06-11 | 2016-09-14 | Johne & Co. Präzisionswerkzeuge GmbH | Wälzfräszähne-Halter, Wälzfräswerkzeug und Bausatz zum Zusammenbauen eines Wälzfräswerkzeugs |
US10654117B2 (en) * | 2016-03-03 | 2020-05-19 | Kennametal Inc. | Cutting tool assembly for milling a rail top |
EP3936270B1 (de) * | 2020-07-08 | 2022-10-26 | Diametal A.G. | Wälzfräseranordnung |
CN111922447B (zh) * | 2020-07-28 | 2022-11-25 | 哈尔滨理工大学 | 一种齿轮精加工刮削滚刀 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2700525A1 (de) * | 1977-01-07 | 1978-07-20 | Sack Gmbh | Mehrteiliger abwaelzfraeser |
EP0050270A2 (de) * | 1980-10-16 | 1982-04-28 | Wilhelm Fette GmbH | Wälzfräser mit Wendeschneidplatten |
EP0109034A1 (de) * | 1982-11-11 | 1984-05-23 | Wälztechnik Saacke-Zorn GmbH & Co. K.G. | Hochleistungs-Wälzfräser |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1495067A (en) * | 1922-12-22 | 1924-05-20 | O K Tool Co | Hob having side-tooth inserts |
DE1752707A1 (de) * | 1968-07-04 | 1970-03-05 | Sack Gmbh Maschf | Abwaelzfraeser |
JPS6099520A (ja) * | 1983-11-07 | 1985-06-03 | Nachi Fujikoshi Corp | 円筒形組立式切削工具 |
SU1189608A2 (ru) * | 1984-07-02 | 1985-11-07 | Горьковский Автомобильный Завод | Сборна черв чна фреза |
JPS61131810A (ja) * | 1984-11-30 | 1986-06-19 | Honda Motor Co Ltd | フライスカツタ−用カツタ−ボデイ |
US5232316A (en) * | 1992-07-23 | 1993-08-03 | Illinois Tool Works Inc. | Hob construction |
RU2169061C2 (ru) * | 1998-09-08 | 2001-06-20 | Валентин Алексеевич Настасенко | Червячный инструмент, способ его изготовления, оборудование для его изготовления и эксплуатации |
JP2000233321A (ja) * | 1999-02-10 | 2000-08-29 | Toshiba Tungaloy Co Ltd | スローアウェイ式ホブ |
JP4616445B2 (ja) * | 2000-06-13 | 2011-01-19 | 株式会社タンガロイ | くし刃形ブレード式ホブ及びくし刃形ブレード |
JP4741809B2 (ja) * | 2004-03-25 | 2011-08-10 | 金井 宏彰 | フライスカッター |
DE102005029053A1 (de) * | 2005-06-21 | 2007-01-04 | Ingersoll Werkzeuge Gmbh | Mehrteiliges Fräswerkzeug |
DE202006001112U1 (de) * | 2006-01-25 | 2006-03-23 | Fette Gmbh | Wälzfräser |
CN101108432B (zh) | 2006-07-19 | 2010-06-02 | 陆联精密股份有限公司 | 滚齿刀及其成型方法 |
CN101249576A (zh) | 2008-04-01 | 2008-08-27 | 泰州市海博汽车科技有限公司 | 一种用于加工齿圈的刀具 |
-
2009
- 2009-04-03 DE DE102009016257.7A patent/DE102009016257B4/de active Active
- 2009-10-13 BR BRPI0922875A patent/BRPI0922875A2/pt not_active IP Right Cessation
- 2009-10-13 WO PCT/EP2009/007346 patent/WO2010072280A1/de active Application Filing
- 2009-10-13 US US13/133,453 patent/US8672589B2/en active Active
- 2009-10-13 CN CN200980150234.1A patent/CN102245337B/zh active Active
- 2009-10-13 GB GB1109394.5A patent/GB2477477B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2700525A1 (de) * | 1977-01-07 | 1978-07-20 | Sack Gmbh | Mehrteiliger abwaelzfraeser |
EP0050270A2 (de) * | 1980-10-16 | 1982-04-28 | Wilhelm Fette GmbH | Wälzfräser mit Wendeschneidplatten |
EP0109034A1 (de) * | 1982-11-11 | 1984-05-23 | Wälztechnik Saacke-Zorn GmbH & Co. K.G. | Hochleistungs-Wälzfräser |
Also Published As
Publication number | Publication date |
---|---|
BRPI0922875A2 (pt) | 2018-05-29 |
CN102245337A (zh) | 2011-11-16 |
GB2477477A9 (en) | 2012-10-03 |
GB2477477B (en) | 2012-10-31 |
DE102009016257B4 (de) | 2017-09-07 |
GB201109394D0 (en) | 2011-07-20 |
CN102245337B (zh) | 2014-03-12 |
DE102009016257A1 (de) | 2010-06-24 |
US20110243671A1 (en) | 2011-10-06 |
GB2477477A (en) | 2011-08-03 |
US8672589B2 (en) | 2014-03-18 |
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