EP1372906B1 - Verfahren und Vorrichtung zur Herstellung von Getriebescheiben eines stufenlos verstellbaren Getriebes - Google Patents

Verfahren und Vorrichtung zur Herstellung von Getriebescheiben eines stufenlos verstellbaren Getriebes Download PDF

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Publication number
EP1372906B1
EP1372906B1 EP02737913A EP02737913A EP1372906B1 EP 1372906 B1 EP1372906 B1 EP 1372906B1 EP 02737913 A EP02737913 A EP 02737913A EP 02737913 A EP02737913 A EP 02737913A EP 1372906 B1 EP1372906 B1 EP 1372906B1
Authority
EP
European Patent Office
Prior art keywords
transmission
grinding
grinding wheel
workpiece
disks
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
EP02737913A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1372906A2 (de
Inventor
Erwin Junker
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.)
Erwin Junker Maschinenfabrik GmbH
Original Assignee
Erwin Junker Maschinenfabrik GmbH
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 Erwin Junker Maschinenfabrik GmbH filed Critical Erwin Junker Maschinenfabrik GmbH
Publication of EP1372906A2 publication Critical patent/EP1372906A2/de
Application granted granted Critical
Publication of EP1372906B1 publication Critical patent/EP1372906B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/14—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding conical surfaces, e.g. of centres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/16—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding peculiarly surfaces, e.g. bulged
    • B24B5/162—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding peculiarly surfaces, e.g. bulged controlled by a template

Definitions

  • the present invention relates to a method, according to the preamble of claim 1, as well as a device, according to the preamble of claim 10 for the production of transmission disks for a continuously variable transmission, such. a belt drive.
  • Such continuously variable transmissions are also referred to as CVT transmissions (Continuously Variable Transmission) and have at least one pair of transmission disks, each with an example, substantially conical or convex, that is .. curved transmission surface.
  • transmission surface here the surface understood, which serves for power transmission.
  • the transmission surface may have a curved or straight shape in the radial direction of the transmission disk.
  • the gear wheels arranged in pairs are adjustable at a distance from one another, with a force transmission element between them, such as e.g.
  • a delicate chain can be deflected.
  • stepless adjustability is achieved.
  • the force transmission element moves non-positively along the transmission surface of the respective opposite transmission disks.
  • the force transmission element is moved up and down or from inside to outside or vice versa along the transmission surface of the transmission disks between an inner diameter and an outer diameter on the transmission surface.
  • the RO 107 309 B shows an additional device for external and internal cylindrical grinding of spherical surfaces as an addition to universal cylindrical grinding machines.
  • a base plate is mounted on the grinding table, which is pivotable about a vertical axis.
  • the base plate can be pivoted about this vertical axis by means of a hydraulic cylinder.
  • a workpiece spindle head is mounted on the base plate via a cross slide. He picks up the workpiece to be ground and drives it to rotate. Opposite the rotating workpiece is in the usual way the wheelhead with the rotating grinding wheel.
  • the workpiece can be pivoted when grinding around the aforementioned vertical axis relative to the grinding wheel in a horizontal plane, and also is about the cross slide the distance of the workpiece spindle head from the vertical axis in two mutually perpendicular axes adjustable.
  • the grinding wheel and workpiece can thereby be moved along an oblique straight guide or a circular path in the looping engagement along each other.
  • the targeted Surface roughness of the transmission surface of the transmission disks are adjusted, whereby optimal conditions for avoiding slippage are created by a Kraftubeitragungselement in the operation of the transmission.
  • the surface can be produced in the required narrow dimensional tolerances and has the necessary strength.
  • the slip behavior significantly improved or slippage is largely avoided, the contact pressure of the transmission discs can be further reduced, resulting in a reduction of the surface pressure and thus the friction in the power transmission and thus an increase the efficiency of the transmission results.
  • a continuously variable transmission with transmission disks according to the invention thus ultimately also leads to a reduction of the fuel consumption of an internal combustion engine in comparison to conventionally produced transmissions.
  • a cross-cut produced in this way offers the following advantages:
  • the bearing components on the surface of the gear disks are higher, because it is a similar "cross-grinding" as honed surfaces.
  • the speed of the workpiece spindle is adjusted to the pendulum motion.
  • a uniform grinding pattern on the transmission surface can be generated in all areas.
  • the surface roughness can be selectively increased or reduced in this way.
  • the speed of the workpiece spindle is changed depending on the radial grinding position of the grinding wheel on the transmission surface. In this way, a uniform grinding pattern can be produced on all regions of the transmission surface, for example by increasing or decreasing workpiece spindle speed, in particular by achieving identical grinding conditions at all grinding locations, in order to produce the same surface roughness on all circumferential regions of the transmission disk. It is thereby avoided that operates at different positions on the transmission plate, the power transmission element with different slip limits.
  • the speed of the oscillating movement is changed depending on the radial position of the grinding wheel on the transmission surface.
  • the relative pendulum motion can be accomplished by either reciprocating the grinding wheel or gearbox.
  • two workpiece spindles are provided, which are arranged to each other so that a pendulum movement over the transmission surfaces of two gear wheels can be performed so that two gear wheels are ground in one clamping with only one grinding wheel.
  • the two workpiece spindles are in this case adjusted so that the transmission surfaces of the two gear wheels are arranged adjacent, wherein the conical or convex transmission surfaces are each in a plane.
  • the machining of two gear disks in one clamping in accordance with the method according to the invention thus enables a reduction of the production times.
  • the cycle times can be approximately halved. It goes without saying that the respective workpiece spindle speeds are adapted to the extended pendulum path.
  • the two workpiece spindles are pivotable about a common pivot point so as to produce a spherical shell shape of the transmission surfaces can be.
  • the position of the pivot point is determined by the radius of the spherical shape.
  • the device according to the invention for the production of gear wheels with a transmission surface for a continuously variable transmission is specified in claim 10 and serves for carrying out the method according to any one of claims 1 to 6.
  • the device according to the invention is based on a device with a grinding wheel for grinding the workpiece is driven by a grinding spindle, with rotary drive and clamping the workpieces by means of workpiece spindle, wherein the central axis of the grinding spindle is horizontally adjustable in its angle relative to the central axis of the workpiece spindle and the grinding area between the grinding wheel and workpiece can move along this angle.
  • the device according to the invention initially serves to solve the above-stated problem, which is also the subject of the method.
  • the two workpiece spindles are arranged such that the transmission surfaces of the two gear disks are arranged adjacent.
  • the spherical or spherical transmission surfaces then form a common grinding surface that can be swept by the grinding wheel. This leads to the already mentioned significant reduction of production times.
  • a grinding spindle slide which is obliquely adjustable with respect to the workpiece spindle.
  • the grinding spindle slide allows a precise and fast reciprocation of the grinding wheel over the transmission surface to be ground. Due to the adjustability in the bevel with respect to the workpiece spindle, different conical shapes of gear disks can be produced.
  • the device has a control device with which the relative pendulum motion can be selectively controlled.
  • the pendulum motion can be selectively changed so that a predefined surface roughness of the transmission surface of the transmission disks can be adjusted to the device.
  • the speed of the workpiece spindle and the speed of the pendulum motion can be varied on the control device.
  • the machining of the transmission surface can thus be optimized for each application, ie in terms of their slip and friction properties in the operation of a transmission.
  • the workpiece spindles are pivotable about a common pivot point for producing a "crowned" shell shape of the transmission surface of both transmission disks.
  • the pivot point is determined by the desired or required radius of curvature.
  • the pivoting movement then also serves to generate the relative pendulum motion.
  • the device is part of a CNC machining center.
  • the transmission disks can be further processed in one clamping. A conversion between different, the grinding preceding or subsequent processing steps is not required.
  • FIG. 1 shows a simplified plan view of a grinding device for carrying out the method according to the invention.
  • a gear disc with a conical surface 2 is clamped to a workpiece spindle 3.
  • the gear disc 1 has a conical transmission surface 2, that is, it is curved in one direction only. However, it goes without saying that the gear disc 1 may also have a curved shape in two directions.
  • a grinding wheel 4 is provided on a grinding spindle 5 for grinding the conical transmission surface 2 of the transmission disk 1.
  • the grinding wheel 4 and the grinding spindle 5 are provided on a grinding spindle slide 6 so that the grinding wheel 4 during the grinding of the surface 2 can perform a pendulum motion.
  • a control device 7 is provided, via which the rotational speed of the workpiece spindle 3 and the oscillating movement of the grinding wheel 4 can be controlled.
  • the grinding wheel 4 oscillates during grinding of the transmission surface 2 of the gear disc 1 between an outer radius 2.2 and an inner radius 2.1 back and forth so that the grinding marks on the surface 2 intersect. In this way, on the surface 2 a cross-cut can be generated.
  • the device can thus specifically influence the surface roughness of the transmission surface 2 of the gear disc 1.
  • the control device 7 in particular the speed of the workpiece spindle 3, the speed and direction of the oscillating movement of the grinding wheel 4 are adjustable. Other setting parameters are the same as in conventional grinding machines, such as the delivery of the grinding wheel 4 in the direction of the surface 2 in the XY plane.
  • FIG. 2 schematically illustrates an exemplary embodiment of the grinding device according to the invention, in which, in contrast to the exemplary embodiment described above, two workpiece spindles 3, 3 'are provided.
  • a grinding of two gear disks 1,1 'in one clamping with a single grinding wheel 4 is possible.
  • the two workpiece spindles 3, 3 ' according to the conical shape of the transmission surface 2, 2' of the transmission disks 1, 1 'aligned with each other so that the generatrices one half of the conical surface 2, 2' lie in a plane.
  • the grinding spindle 5 is arranged on a grinding spindle slide 6, which allows a pendulum movement of the inner radius 2.1 of the surface 2 of a gear disc 1 to the inner radius 2.1 of the other gear disc 1 '. As a result, the manufacturing times for the grinding of the transmission surface of transmission disks can be reduced.
  • FIG. 3 schematically illustrates an alternative embodiment of the grinding apparatus of FIG. 1.
  • a pivotable, i. reciprocating workpiece spindle 10 executed.
  • This creates a radius shape, i. spherical shape of the transmission surface 2, which has a targeted surface roughness because of the cross-cut produced.
  • the position of the pivot point 8 determines the radius of curvature of the convex lateral surface and is preferably adjustable.
  • FIG. 4 analogously to FIG. 3, an alternative embodiment of the grinding machine from FIG. 2 with two workpiece spindles is shown schematically.
  • the two workpiece spindles 10, 10 ' are pivotally arranged about a common pivot point 9 so that the pendulum movement on the workpiece spindles 10, 10' is executable, while the grinding wheel 4 is delivered in the Y direction.
  • the pivot point 9 is adjustable, as well as the pivot angle ⁇ for an adaptation of the device to different forms of transmission discs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Friction Gearing (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Pulleys (AREA)
EP02737913A 2001-04-04 2002-04-03 Verfahren und Vorrichtung zur Herstellung von Getriebescheiben eines stufenlos verstellbaren Getriebes Expired - Lifetime EP1372906B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10116807A DE10116807B4 (de) 2001-04-04 2001-04-04 Verfahren und Vorrichtung zur Herstellung von Getriebescheiben eines stufenlos verstellbaren Getriebes
DE10116807 2001-04-04
PCT/EP2002/003654 WO2002081147A2 (de) 2001-04-04 2002-04-03 Verfahren und vorrichtung zur herstellung von getriebescheiben eines stufenlos verstellbaren getriebes

Publications (2)

Publication Number Publication Date
EP1372906A2 EP1372906A2 (de) 2004-01-02
EP1372906B1 true EP1372906B1 (de) 2006-07-19

Family

ID=7680375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02737913A Expired - Lifetime EP1372906B1 (de) 2001-04-04 2002-04-03 Verfahren und Vorrichtung zur Herstellung von Getriebescheiben eines stufenlos verstellbaren Getriebes

Country Status (12)

Country Link
US (1) US20050170753A1 (cs)
EP (1) EP1372906B1 (cs)
JP (1) JP3949583B2 (cs)
KR (1) KR100816576B1 (cs)
CN (1) CN100400231C (cs)
AU (1) AU2002312789A1 (cs)
BR (1) BR0208687B1 (cs)
CZ (1) CZ298796B6 (cs)
DE (2) DE10116807B4 (cs)
ES (1) ES2269710T3 (cs)
RU (1) RU2284891C2 (cs)
WO (1) WO2002081147A2 (cs)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004041117A1 (de) * 2004-08-24 2006-03-02 Nyffenegger, Ulrich Verfahren und Vorrichtung zum Schleifen eines Profils eines Werkstücks
CN102335844A (zh) * 2011-10-22 2012-02-01 安庆机床有限公司 一种圆锥滚子球基面磨床
JP5842550B2 (ja) * 2011-11-08 2016-01-13 日本精工株式会社 超仕上げ加工装置、超仕上げ加工方法、及び外輪の製造方法
US10876615B2 (en) * 2017-08-09 2020-12-29 Honda Motor Co., Ltd. Pulley for continuously variable transmission and method of producing pulley for continuously variable transmission
CN107756182A (zh) * 2017-10-30 2018-03-06 重庆代发铸造有限公司 特殊工件打磨装置
CN108500817A (zh) * 2018-03-29 2018-09-07 宁波鑫神泽汽车零部件有限公司 汽车零件抛光装置
CN111230678A (zh) * 2020-03-19 2020-06-05 苏州市职业大学 一种精密细小圆弧磨削加工机构
CN111702610B (zh) * 2020-07-07 2021-05-25 中国航发动力股份有限公司 一种发动机轮盘环列异形榫槽尖边处理方法
CN112658903A (zh) * 2021-01-05 2021-04-16 上海雄博精密仪器股份有限公司 用于异形工件的摆动磨削装置及方法

Family Cites Families (18)

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FR674808A (fr) 1928-07-05 1930-02-03 Anciens Etablissements Fetu De Machine à rectifier d'après gabarit
US2040449A (en) * 1931-06-10 1936-05-12 Gen Motors Corp Grinding machine
US2212179A (en) * 1938-12-20 1940-08-20 Martin Joseph Harry Lens grinder
DE844553C (de) 1945-05-01 1952-07-21 Gottfried Wohlgemuth Einstellvorrichtung fuer Rundschleifmaschine
FR1216177A (fr) 1958-02-14 1960-04-22 Buss Ag Procédé et dispositif pour meuler et polir les fonds et les couvercles de récipients
CH452384A (fr) 1966-02-18 1968-05-31 Genevoise Instr Physique Rectifieuse pour cônes et cylindres
US3871813A (en) * 1971-10-28 1975-03-18 Danker & Wohlk Inc Mold member for contact lens construction
GB1459068A (en) * 1974-04-24 1976-12-22 Raytheon Co Menufacture of mirrors coat9ng composition
SU1431916A1 (ru) * 1985-12-23 1988-10-23 В.Н.Трутнев Устройство дл шлифовани цилиндрической и конической поверхностей детали
IT1220123B (it) * 1987-11-02 1990-06-06 Dyanex Di Bandelli D & Visinti Spazzola rotante per levigatura
RO107379B1 (ro) * 1990-01-06 1993-11-30 Mecanica Nicolina Dispozitiv de rectificat suprafețe sferice, exterioare și interioare
JP3402801B2 (ja) * 1994-11-22 2003-05-06 本田技研工業株式会社 無段変速機用プーリ装置の可動シーブ加工方法
DE19626609C2 (de) * 1996-07-02 2000-03-09 Boehringer Werkzeugmaschinen Mehrfachfräsen an Kurbelwellen
JPH10337643A (ja) 1997-06-06 1998-12-22 Mitsubishi Heavy Ind Ltd 研磨装置
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JP2000130527A (ja) * 1998-10-30 2000-05-12 Nissan Motor Co Ltd Ｖベルト式無段変速機用プーリー及び無段変速機
DE19955818B4 (de) * 1999-01-20 2004-08-05 Nsk Ltd. Verfahren zum Schleifen der Zugoberfläche einer halbringförmigen Scheibe eines stufenlosen Getriebes
US6474913B2 (en) * 2000-05-31 2002-11-05 Toshiba Kikai Kabushiki Kaisha Tool management system

Also Published As

Publication number Publication date
RU2003132074A (ru) 2005-04-20
ES2269710T3 (es) 2007-04-01
JP3949583B2 (ja) 2007-07-25
EP1372906A2 (de) 2004-01-02
BR0208687B1 (pt) 2011-07-26
US20050170753A1 (en) 2005-08-04
WO2002081147A3 (de) 2003-05-01
JP2004532134A (ja) 2004-10-21
KR100816576B1 (ko) 2008-03-24
BR0208687A (pt) 2004-08-03
KR20030093273A (ko) 2003-12-06
CZ298796B6 (cs) 2008-01-30
CZ20032700A3 (en) 2004-03-17
DE10116807A1 (de) 2002-10-17
DE10116807B4 (de) 2007-01-11
WO2002081147A2 (de) 2002-10-17
DE50207564D1 (de) 2006-08-31
WO2002081147B1 (de) 2003-11-27
CN100400231C (zh) 2008-07-09
AU2002312789A1 (en) 2002-10-21
RU2284891C2 (ru) 2006-10-10
CN1500027A (zh) 2004-05-26

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