EP3867008B1 - Vorrichtung und verfahren zur fertigung mindestens eines wälzkörpers und verfahren zur bearbeitung mindestens einer regelscheibe der vorrichtung - Google Patents

Vorrichtung und verfahren zur fertigung mindestens eines wälzkörpers und verfahren zur bearbeitung mindestens einer regelscheibe der vorrichtung Download PDF

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Publication number
EP3867008B1
EP3867008B1 EP19801193.4A EP19801193A EP3867008B1 EP 3867008 B1 EP3867008 B1 EP 3867008B1 EP 19801193 A EP19801193 A EP 19801193A EP 3867008 B1 EP3867008 B1 EP 3867008B1
Authority
EP
European Patent Office
Prior art keywords
grinding
peripheral
control
wheel
dressing
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.)
Active
Application number
EP19801193.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3867008A1 (de
Inventor
Werner Heuer
Holger PÄTZOLD
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG 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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP3867008A1 publication Critical patent/EP3867008A1/de
Application granted granted Critical
Publication of EP3867008B1 publication Critical patent/EP3867008B1/de
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Anticipated expiration legal-status Critical

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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
    • B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
    • B24B5/26—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding peculiarly profiled surfaces, e.g. bulged
    • 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
    • B24B5/36—Single-purpose machines or devices
    • B24B5/37—Single-purpose machines or devices for grinding rolls, e.g. barrel-shaped rolls
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
    • 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
    • B24B5/04—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 cylindrical surfaces externally
    • 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
    • B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
    • 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
    • B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
    • B24B5/307—Means for supporting work
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
    • B24B53/08—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels controlled by information means, e.g. patterns, templets, punched tapes or the like
    • B24B53/081—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels controlled by information means, e.g. patterns, templets, punched tapes or the like by means of a template

Definitions

  • the invention relates to a device for producing a spherically curved lateral surface on a rolling body for a rolling bearing and a method for producing the spherically curved lateral surface on the rolling body.
  • the invention also relates to a method for processing at least one control disk of the device.
  • the outer surfaces of rolling elements are usually machined by grinding. It is known to use a grinding device with a curved grinding surface for grinding, as described, for example, in the publication CN 103 821 828 A is revealed.
  • the publication describes the production of needle rollers with curved lateral surfaces CN 105 033 786 A proposed to arrange the needle rollers on a curved plate and grind them.
  • the US 2,409,320 A describes a grinding process and a grinding device for machining rolling elements with a convex lateral surface that is convex in the middle and concavely curved at the ends.
  • a first grinding wheel with a concavely shaped surface and a first regulating wheel with a convexly shaped surface are provided in order to make the lateral surface of a rolling body concave at the two ends of the rolling body.
  • a second grinding wheel with a convex surface and a second regulating wheel with a concave surface are provided in order to make the lateral surface of a rolling body concave in the middle, i.e. between the two ends.
  • a beveled cutting edge supports the rolling element to be machined between the respective grinding wheel and the respective regulating wheel.
  • the DE 517 148 C discloses a method for centerless grinding of rolls with concave or convex surface lines and for chamfering cylindrical rolls.
  • a workpiece is conveyed axially in an arcuate path between a grinding element and a control element, which have curved workpiece detection surfaces that represent a counter-image of one another.
  • a workpiece carrier following the grinding jaw in the form of a curved workpiece support ruler is flat at the top and has entry guides and exit guides for the workpiece.
  • the US 2 795 900 A describes a machine for grinding and honing barrel-shaped rollers.
  • a grinding wheel with a concave grinding surface and a regulating wheel with a spherical surface are provided.
  • a round cage with pockets for holding rolling elements is also provided, which rotates with a shaft.
  • a rolling element is loaded into a pocket of the cage by means of a channel or a raceway and is guided between the grinding wheel and the regulating wheel by means of the rotating cage.
  • the US 2 930 373 A discloses a method for centerless grinding of rollers.
  • the grinding machine used for this purpose has a grinding wheel with a concave grinding surface and a regulating wheel with a convex surface. Furthermore, a Dressing device for the grinding wheel and another dressing device for the regulating wheel.
  • the invention is based on the object of providing an alternative device and an alternative method for producing a curved outer surface on a rolling element in the form of a tapered roller. This object is achieved by a device with the features of claim 1, by a method for producing the curved outer surface with the features of claim 5 and by a method for machining at least one regulating disk of the device with the features of claim 6. Preferred or advantageous embodiments of the invention emerge from the subclaims, the following description and/or the attached figures.
  • a device is proposed which is designed for the simultaneous production of a spherically curved lateral surface on several rolling elements for a rolling bearing.
  • the rolling body is designed as a tapered roller that can be integrated into a tapered roller bearing.
  • the device comprises a grinding device which is designed for grinding the spherically curved lateral surface on the rolling body.
  • the grinding device is designed as a grinding wheel with a concavely profiled peripheral grinding surface.
  • the device comprises at least one holding device which is designed to hold the rolling body during and/or during grinding by the grinding device.
  • the holding device is also designed to feed the rolling elements to the grinding device.
  • the at least one holding device is designed as at least one regulating disk with a convex profiled peripheral feed surface.
  • the device has several adjacently arranged, in particular rotationally fixed, connected control disks for the simultaneous production of several rolling elements with the crowned curved surface.
  • any possible curvature or crowning of the outer surface is limited by manufacturing technology, particularly due to the tapered roller's own weight. As a result, the tapered roller can only be manufactured with geometric restrictions.
  • the advantage of the convexly profiled circumferential feed surface of the at least one regulating wheel is that these limitations can be overcome and/or reduced when the rolling element is arranged on the convexly profiled circumferential feed surface in order to grind the outer surface in a curved manner.
  • the control disks and/or the convexly profiled peripheral feed surfaces are formed from a ceramic, synthetic resin-bonded or metallic material.
  • the device in a preferred embodiment of the invention comprises a control device which is designed to control the at least one dressing device.
  • the control device can be an NC control.
  • the at least one dressing device is designed and provided in particular to dress the grinding device, in particular to concavely profile, calibrate and/or sharpen the peripheral grinding surface of the grinding wheel.
  • the dressing device is designed as a rotatable dressing roller or as a stationary dressing tool.
  • the at least one dressing device has a coating made of diamond or boron nitride (CBN), so that Material can be removed on the holding device and on the grinding device and the convex or concave profile can thereby be introduced.
  • CBN boron nitride
  • the at least one dressing device is provided not only for dressing the grinding device, but also for profiling the holding device, an additional processing machine for processing the peripheral feed surface, for example a grinding or hard turning machine, can advantageously be dispensed with. Complex handling of the control disk from the additional processing machine to the device can thereby be avoided. This can consequently lead to cost savings.
  • the holding device in particular the at least one regulating disk, is formed from the metallic material
  • the convex profile is introduced on the feed peripheral surface of the at least one regulating disk by wire erosion.
  • a further subject of the invention is a method for producing a spherically curved lateral surface on a rolling body in the form of a tapered roller for a rolling bearing with the device according to the previous description and / or according to claims 1 to 4.
  • the rolling element is arranged on the convexly profiled circumferential feed surface of the at least one regulating wheel.
  • the rolling element is fed to the grinding device in this way.
  • the spherically curved outer surface is then ground using the concavely profiled circumferential grinding surface of the grinding wheel.
  • it is preferred that the at least one regulating wheel and the grinding wheel are and/or rotate in opposite directions during the grinding of the curved outer surface.
  • a method for processing the at least one regulating disk forms a further subject of the invention.
  • the peripheral feed surface of the at least one regulating wheel is machined and/or convexly profiled by means of the dressing device of the device, in particular if the at least one regulating wheel and/or the peripheral feeding surface is/are formed from the ceramic or synthetic resin-bonded material.
  • the control device controls the dressing device to give the circumferential feed surface of the at least one regulating wheel a convex profile.
  • the circumferential feed surface of the at least one regulating wheel prefferably be machined by wire erosion and/or convexly profiled. This is particularly the case if the at least one regulating wheel and/or the circumferential feed surface is/are formed from the metal-bonded material.
  • a device 50 from the prior art is shown, which is designed to produce a curved, in particular spherical, lateral surface 52 on a tapered roller 51.
  • the device 50 comprises a grinding device 53 and a plurality of rotatable hump rollers 55, which are arranged adjacent to one another in a row and rotate together.
  • Each hump roller 55 has two in a longitudinal section Hump 56 on which the tapered roller 51 rests.
  • the grinding device 53 is designed as a rotatable grinding wheel with a grinding surface 54. The grinding wheel and the hump rollers 55 rotate in opposite directions.
  • Each bump roller 55 forms a holding device for exactly one tapered roller 51, which is arranged on the bump roller 55 and is thereby brought into contact with the grinding surface 54.
  • the tapered roller 51 rotates with the hump roller 55 and is ground by the grinding surface 54 of the grinding wheel, so that the curved lateral surface 52 is produced.
  • a producible curvature or crowning of the lateral surface 52 on the tapered roller 51 is limited in terms of manufacturing technology with the device 50 from the prior art, in particular due to the arrangement on the hump roller 55 and due to the tapered roller's own weight. Therefore, geometric restrictions in the curvature or crowning of the lateral surface must be accepted.
  • a device 1 is shown, which is designed to produce a spherically curved lateral surface 3 on a rolling body 2 for a rolling bearing.
  • the rolling body is designed as a tapered roller 2.
  • the device 1 comprises a grinding device 4, which is designed as a grinding wheel 7 which can be rotated in a first rotation direction R1.
  • the grinding device 4 has a concavely profiled peripheral grinding surface 5 with which the curved lateral surface 3 on the tapered roller 2 can be ground.
  • the device 1 comprises a holding device 6 for holding the tapered roller 2 during the grinding of the crowned curved surface 4.
  • the holding device 6 is designed as a plurality of rotatable control disks 8, which are arranged adjacent to one another in a row.
  • the control disks are rotatably mounted and rotate together in a second direction of rotation R2, which is directed opposite to the first direction of rotation R1.
  • Each control disk 8 has a convexly profiled peripheral feed surface 9 on which the tapered roller 2 can be arranged and stored.
  • Each control disk 8 and/or each peripheral feed surface 9 is formed from a ceramic, resin-bonded or metallic material.
  • the spherically curved lateral surface 3 on the tapered roller 2 can be manufactured largely without geometric restrictions.
  • the device 1 comprises a dressing device 10 for dressing the grinding device 4 and the holding device 6.
  • the dressing device 10 is designed as a standing dressing device. Alternatively, it can be designed as a rotating dressing device.
  • the device 1 also includes a control device 11 for controlling the dressing device 10.
  • the control device 11 can be designed, for example, as an NC control.
  • the dressing device 10 is intended to profile, sharpen and/or calibrate the peripheral grinding surface 5 of the grinding wheel 7. This can also be done during grinding of the outer surface 3 of the tapered roller 2 in order to avoid blunting.
  • the dressing device 10 is intended to give the circumferential feed surface 9 of the control disk 8 a convex profile, particularly if the control disk 8 and/or the circumferential feed surface 9 is/are formed from the ceramic or synthetic resin-bonded material.
  • the convex profiling of the peripheral feed surface 9 by the dressing device 10 takes place before the control wheel 8 is used in the device 1 as the holding device 6.
  • the regulating wheel acts as a damping element, which enables the use of ceramic-bonded grinding wheels.
  • control disk 8 and/or the peripheral feed surface 9 is/are formed from the metal-bonded material, the concave profile is introduced into the circumferential feed surface 9 of the control disk 8 by wire erosion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Rolling Contact Bearings (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
EP19801193.4A 2018-10-18 2019-10-16 Vorrichtung und verfahren zur fertigung mindestens eines wälzkörpers und verfahren zur bearbeitung mindestens einer regelscheibe der vorrichtung Active EP3867008B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018125825.9A DE102018125825A1 (de) 2018-10-18 2018-10-18 Vorrichtung und Verfahren zur Fertigung mindestens eines Wälzkörpers und Verfahren zur Bearbeitung mindestens einer Regelscheibe der Vorrichtung
PCT/DE2019/100900 WO2020078514A1 (de) 2018-10-18 2019-10-16 Vorrichtung und verfahren zur fertigung mindestens eines wälzkörpers und verfahren zur bearbeitung mindestens einer regelscheibe der vorrichtung

Publications (2)

Publication Number Publication Date
EP3867008A1 EP3867008A1 (de) 2021-08-25
EP3867008B1 true EP3867008B1 (de) 2024-04-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19801193.4A Active EP3867008B1 (de) 2018-10-18 2019-10-16 Vorrichtung und verfahren zur fertigung mindestens eines wälzkörpers und verfahren zur bearbeitung mindestens einer regelscheibe der vorrichtung

Country Status (7)

Country Link
US (1) US11980996B2 (zh)
EP (1) EP3867008B1 (zh)
JP (1) JP7179984B2 (zh)
KR (1) KR20210075062A (zh)
CN (1) CN112533728B (zh)
DE (1) DE102018125825A1 (zh)
WO (1) WO2020078514A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2451404B1 (en) 2009-07-09 2015-12-16 R Tree Innovations, LLC Flexible inter-body implant
CN113732844A (zh) * 2021-08-09 2021-12-03 武汉钢铁有限公司 工作辊的磨削方法及装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664067A (en) * 1968-11-06 1972-05-23 Roulements Soc Nouvelle Method for machining bodies of revolution having a circular generatrix
WO2020024879A1 (zh) * 2018-07-28 2020-02-06 天津大学 用于凸度滚子滚动表面精加工的研磨盘套件、设备及方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE517148C (de) * 1928-06-25 1931-02-12 Cincinnati Grinders Inc Verfahren zum spitzenlosen Schleifen von Rollen mit konkaver oder konvexer Mantellinie sowie zum Abfasen zylindrischer Rollen
US2409320A (en) 1944-03-30 1946-10-15 Gen Motors Corp Grinding of rollers
US2795900A (en) * 1954-07-28 1957-06-18 Modler Hans Machine for grinding and superfinishing barrel-shaped rollers and the like
US2930373A (en) * 1959-02-26 1960-03-29 Cincinnati Milling Machine Co Grinding machine truing mechanism
DE1179826B (de) 1962-01-18 1964-10-15 Hans Modler Dipl Ing Maschine zum spitzenlosen Schleifen runder Werkstuecke
JPS5416584B2 (zh) 1971-10-20 1979-06-23
JP2002059345A (ja) 2000-08-18 2002-02-26 Toshin Technical:Kk 心無し研削盤におけるワークの研削方法
JP4923369B2 (ja) 2001-09-17 2012-04-25 日本精工株式会社 センタレス研削盤
US7163434B2 (en) * 2004-09-27 2007-01-16 Ceradyne, Inc. Method and apparatus for generating complex shapes on cylindrical surfaces
DE102009024209B4 (de) * 2009-06-08 2012-12-06 Erwin Junker Maschinenfabrik Gmbh Verfahren und vorrichtung zum mehrlagenschleifen von werkstücken
ES2534815T3 (es) * 2011-03-24 2015-04-28 Erwin Junker Maschinenfabrik Gmbh Instalación de máquina de rectificación con alojamiento pivotable de una unidad de husillo de rectificación y procedimiento para la articulación de una unidad de husillo de rectificación en una máquina de rectificación
CN103821828B (zh) 2014-02-21 2016-04-13 山东东阿钢球集团有限公司 精密圆锥滚子的生产方法
CN105033786A (zh) 2015-07-28 2015-11-11 湖北钱潮精密件有限公司 一种滚针对数凸度磨削装置及其磨削方法
CN106181678A (zh) 2016-07-04 2016-12-07 成都芬尼克兹机电设备有限公司 一种航空高精度轴承滚子加工方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664067A (en) * 1968-11-06 1972-05-23 Roulements Soc Nouvelle Method for machining bodies of revolution having a circular generatrix
WO2020024879A1 (zh) * 2018-07-28 2020-02-06 天津大学 用于凸度滚子滚动表面精加工的研磨盘套件、设备及方法

Also Published As

Publication number Publication date
EP3867008A1 (de) 2021-08-25
KR20210075062A (ko) 2021-06-22
JP2022505248A (ja) 2022-01-14
WO2020078514A1 (de) 2020-04-23
US20210354261A1 (en) 2021-11-18
DE102018125825A1 (de) 2020-04-23
JP7179984B2 (ja) 2022-11-29
US11980996B2 (en) 2024-05-14
CN112533728A (zh) 2021-03-19
CN112533728B (zh) 2023-07-14

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