EP0482343B1 - Procédé et appareil pour la rectification d'anneaux, en particulier de bagues de paliers de roulements - Google Patents

Procédé et appareil pour la rectification d'anneaux, en particulier de bagues de paliers de roulements Download PDF

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Publication number
EP0482343B1
EP0482343B1 EP91115615A EP91115615A EP0482343B1 EP 0482343 B1 EP0482343 B1 EP 0482343B1 EP 91115615 A EP91115615 A EP 91115615A EP 91115615 A EP91115615 A EP 91115615A EP 0482343 B1 EP0482343 B1 EP 0482343B1
Authority
EP
European Patent Office
Prior art keywords
measuring
medium
ring surface
centring
processed
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
EP91115615A
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German (de)
English (en)
Other versions
EP0482343A3 (en
EP0482343A2 (fr
Inventor
Ernst Dipl.-Ing. Thielenhaus
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.)
Ernst Thielenhaus GmbH and Co KG
Original Assignee
Ernst Thielenhaus 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 Ernst Thielenhaus GmbH and Co KG filed Critical Ernst Thielenhaus GmbH and Co KG
Publication of EP0482343A2 publication Critical patent/EP0482343A2/fr
Publication of EP0482343A3 publication Critical patent/EP0482343A3/de
Application granted granted Critical
Publication of EP0482343B1 publication Critical patent/EP0482343B1/fr
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
    • B24B33/00—Honing machines or devices; Accessories therefor
    • B24B33/06—Honing machines or devices; Accessories therefor with controlling or gauging equipment
    • 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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • B24B19/06—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding races, e.g. roller races
    • 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/08—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving liquid or pneumatic means

Definitions

  • the invention relates to a method for fine grinding of rings on the outer ring surface or on the inner ring surface, in particular for fine grinding of roller bearing races, a ring to be machined being picked up by a workpiece holder with centering via a hydraulic centering means and being driven in rotation by a driver, the one to be machined Ring surface is subjected to a measurement during a grinding process and the grinding process is controlled and / or regulated in accordance with the measurement values of the measurement.
  • the invention also relates to devices for carrying out such a method. It goes without saying that the measurement values of the measurement are recorded and evaluated electrically using suitable aids, for which purpose the modern, in particular electronic aids of measurement and control technology Offer a variety of options, including computer-based ones.
  • the control or regulation takes place z. B. in accordance with a predetermined material removal as a setpoint. Particularly in the case of rolling bearing rings for high-speed rolling bearings, high demands are placed on the accuracy of the material removal. It must also be ensured that the roundness of the rings does not suffer during machining. Centering by means of a hydraulic centering means is also referred to as hydro-centering (cf. DE 18 05 307).
  • the hydro-centering can take place with circumferentially closed workpiece holders, but also with shoe-like hydro-centric elements. It allows the rings to be machined to be accommodated in such a way that clamping deformations or clamping deformations, such as those e.g. B. must be accepted with mechanical clamping or clamping with a three-jaw chuck, do not occur. In this respect, the hydro-centering allows fine grinding with high accuracy. It is understood that the rings to be machined with suitable tools, for. B. are pressed against the driver using pressure rollers.
  • the measurement is carried out with the aid of mechanical sensors which are placed on the annular surface to be machined with little pressure and which, for. B. are equipped with a fine diamond tip. It cannot be excluded that the tips of the feelers leave marks on the machined ring surface. The unavoidable low out-of-roundness that the rings to be machined bring with them from prefabrication can also lead to disturbing vibrations in the measuring system.
  • the measurement is a contactless measurement.
  • a flow of measuring air which emerges in a free jet from a nozzle, is directed onto the surface to be machined, so that a throttle gap is created between the nozzle and the surface to be machined.
  • Changes in the gap width of this throttle gap, at different distances from the surface to be machined from the nozzle are based, cause pressure fluctuations in the air flow which is supplied to the nozzle via a line, which fluctuations are measured and evaluated in the manner described.
  • the measuring accuracy is not sufficient here and disruptive vibrations cannot be ruled out here either.
  • a liquid jet namely an oil jet
  • the invention has for its object to provide a method for fine grinding rings on the outer ring surface or on the inner ring surface, in particular for fine grinding rolling bearing races, with which the measurement can be carried out with great accuracy and without interference from vibrations.
  • the invention teaches that a non-contact measurement is carried out with at least two identical measuring heads, from which a hydraulic measuring means which corresponds to the centering means emerges from at least one nozzle opening in each case, that the measuring heads compensate for measuring force equidistantly over the
  • the circumference of the ring surface to be machined can be arranged in such a way that the hydraulic measuring means is introduced free of radiation into the measuring and centering layer, which takes the ring surface to be machined and which forms between the measuring head and the ring surface.
  • the invention is based on the knowledge that it is not feasible to work with a free jet of measuring air or with a free jet of a measuring liquid when fine-grinding rings and in particular roller bearing races.
  • the disturbances described above can be avoided when working with measuring heads from which the measuring medium enters the measuring medium and centering medium layer free of radiation, which necessarily occurs when machining rings on the inner or outer surface of the ring if centering is carried out via a hydraulic centering medium . Without disturbing the centering, it is possible to work with relatively high pressures of the measuring means and thus also the centering means, if care is taken in the manner described that the measuring heads are distributed equidistantly over the circumference of the annular surface to be machined, in a way that compensates for measuring forces. Measuring force compensating means that the forces which arise as a result of the measuring means being supported, as it were, with considerable pressure on the ring surface to be machined.
  • the measuring device is a hydraulic measuring device, the viscosity can be adjusted so that the vibrations described above can no longer occur. It goes without saying that the flow cross sections for the supply of the measuring means to the measuring heads are not too large and the lines themselves are set up to be sufficiently elastically deformable. According to a preferred embodiment of the invention, a hydraulic flushing agent which is customary in fine grinding is used as the measuring and centering means.
  • the centering means and the measuring means can be used simultaneously as coolants, so that the rings to be machined do not experience disturbing thermal expansions which result from the heat of machining.
  • the invention teaches in particular that a quantity of measuring medium which is effective at the same time is used.
  • the measuring medium quantity and the centering medium quantity can be taken from the same pressure medium system. It is within the scope of the invention to carry out cooling of the centering means or of the measuring means, by means of suitable heat exchangers.
  • a preferred embodiment of the invention is characterized in that three measuring heads are arranged which are offset by 120 ° over the circumference of the ring surface to be machined. It is expedient to work with identically identical measuring heads.
  • the invention also relates to a device for carrying out the described method.
  • the device is equipped with a rotating workpiece holder for the rolling bearing race to be machined and at least one measuring head with a nozzle opening.
  • the device is characterized in that at least two measuring heads are provided, each with at least one nozzle opening, that the measuring heads are equidistantly distributed over the circumference of the ring surface to be machined, and that the measuring heads are adjustable in the radial direction.
  • the measuring heads can have a nozzle tube arranged in the radial direction, so that they consist mainly of this nozzle tube.
  • the measuring heads have a measuring shoe, the measuring surface of which is adapted in terms of curvature to the ring surface to be machined, and that the nozzle opening opens into the measuring surface.
  • the nozzle openings of all measuring heads are expediently of the same diameter; they should be set up to deliver the same quantity of measuring medium. -
  • the measured values can be taken from the individual measuring heads or from the measuring medium flows supplied to the individual measuring heads and evaluated individually or in an integrated manner.
  • the device shown in the figures is intended for fine grinding rings 1 on the inner ring surface (FIGS. 1 and 2) or on the outer ring surface (FIG. 3).
  • a machine-fixed, non-rotating workpiece holder 2 for the rings 1 to be machined can first be seen, the centering being carried out via a hydraulic centering means 3, which is supplied via special bores and channels, which was not drawn. If FIG. 2 is added, it can be seen that a ring 1 to be machined, which is received by the workpiece holder 2, is rotatably carried along by a driver 4, which consists of a shaft and a disk connected to it. This also requires a pressure device that presses the ring to be machined against the driver. The pressure device was not drawn.
  • measuring heads 5 are provided which are adjustable in the radial direction with respect to the surface to be machined. This setting can be made now and then in the radial direction, which was indicated by a double arrow.
  • a very fine gap can be set between the ring surface to be machined and the measuring head 5. 1 and 3, this gap was shown enlarged with considerable exaggeration.
  • the gap width is in general in the ⁇ range.
  • the measuring heads 5 are equidistantly distributed over the circumference of the ring surface to be machined. they each have at least one nozzle opening 6, from which emerges a hydraulic measuring means which corresponds to the centering means. It enters the measuring and centering agent layer 7, which has been drawn exaggeratedly thick, without being exposed to radiation. It forms between the ring surface to be machined and each of the measuring heads 5.
  • the measuring heads 5 are designed as measuring shoes, the measuring surface of which is curvaturally adapted to the ring surface to be machined.
  • the nozzle openings 6 open, as shown in FIG. 2, in the measuring surface.
  • the nozzle openings 6 of all measuring heads 5 have the same diameter. They are also set up to deliver the same flow of measuring medium.
  • the measuring heads can also have a nozzle tube 8 extending in the radial direction. - The procedure described above can be implemented very easily with such devices. If it is a matter of machining roller bearing races, the measuring heads 5 can be inserted into the grooves of the rings by a radial adjustment and brought into the working position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Claims (10)

  1. procédé pour rectifier des bagues au niveau de leur surface extérieure ou de leur surface intérieure, notamment pour la rectification de bague de roulement (1),
       selon lequel une bague à usiner (1) est reçue par un logement (2) de pièce à usiner en étant centrée par l'intermédiaire d'un fluide hydraulique de centrage (3) et est entraînée en rotation par un dispositif d'entraînement (4), et
       selon lequel on soumet à une mesure la surface de la bague à usiner lors d'une opération de rectification et selon lequel on commande et/ou on règle l'opération de rectification en fonction des valeurs de mesure, caractérisé en ce qu'on exécute une mesure sans contact à l'aide d'au moins deux têtes de mesure identiques (5), d'où un fluide hydraulique de mesure, qui est identique au fluide de centrage, sort respectivement au moins d'une ouverture de buse (6),
       que les têtes de mesure (5) sont disposées en étant réparties de façon équidistante, d'une manière qui compense la force de mesure, sur le pourtour de la surface de la bague à usiner, et
       que le fluide de mesure hydraulique est introduit, sans jet libre, dans la couche du fluide de mesure et de centrage (7), qui entraîne la surface de la bague à usiner et s'établit entre la tête de mesure et la surface de la bague.
  2. Procédé selon la revendication 1, caractérisé en ce qu'on utilise un fluide hydraulique de rinçage, usuel lors de la rectification, en tant que fluide de mesure et de centrage.
  3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce qu'on travaille avec une quantité du fluide de mesure, qui produit simultanément un effet de refroidissement.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la quantité du fluide de mesure et la quantité du fluide de centrage sont tirées du même système de fluide sous pression.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce qu'on travaille avec des têtes de mesure (5) diamétralement opposées.
  6. Procédé selon l'une des revendications 1 à 4, caractérisé en ce qu'on travaille avec trois têtes de mesure (5) disposées en étant décalées de 120° sur le pourtour de la surface de la bague à usiner.
  7. Dispositif pour la mise en oeuvre du procédé selon l'une des revendications 1 à 6, comportant un logement (2) pour pièce à usiner, avec un centrage réalisé au moyen d'un fluide hydraulique de centrage (3) pour la bague de roulement (1) devant être usinée, et au moins une tête de mesure (5) comportant une ouverture de buse (6), caractérisé en ce qu'au moins deux têtes de mesure (5) identiques sont équipées chacune d'au moins une ouverture de buse (6), que les têtes de mesure (5) sont réparties d'une manière équidistante, qui compense la force de mesure, sur la périphérie de la surface annulaire à usiner et que les têtes de mesure (5) sont réglables dans une direction radiale.
  8. Dispositif selon la revendication 7, caractérisé en ce que les têtes de mesure (5) possèdent un tube de buse disposé dans une direction radiale.
  9. Dispositif selon la revendication 7, caractérisé en ce que les têtes de mesure (5) comportent un sabot de mesure, dont la surface de mesure possède une courbure adaptée à celle de la surface de la bague à usiner et que l'ouverture de buse (6) débouche dans la surface de mesure.
  10. Procédé selon l'une des revendications 7 à 9, caractérisé en ce que les ouvertures de buses (6) de toutes les têtes de mesure (5) possèdent le même diamètre et sont agencées de manière à délivrer des écoulements quantitatifs identiques du fluide de mesure.
EP91115615A 1990-10-24 1991-09-14 Procédé et appareil pour la rectification d'anneaux, en particulier de bagues de paliers de roulements Expired - Lifetime EP0482343B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4033727 1990-10-24
DE4033727A DE4033727C1 (fr) 1990-10-24 1990-10-24

Publications (3)

Publication Number Publication Date
EP0482343A2 EP0482343A2 (fr) 1992-04-29
EP0482343A3 EP0482343A3 (en) 1992-08-26
EP0482343B1 true EP0482343B1 (fr) 1994-08-31

Family

ID=6416903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91115615A Expired - Lifetime EP0482343B1 (fr) 1990-10-24 1991-09-14 Procédé et appareil pour la rectification d'anneaux, en particulier de bagues de paliers de roulements

Country Status (6)

Country Link
US (1) US5679061A (fr)
EP (1) EP0482343B1 (fr)
JP (1) JP2530958B2 (fr)
CZ (1) CZ279086B6 (fr)
DE (2) DE9017792U1 (fr)
RU (1) RU2076034C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111546235A (zh) * 2020-04-02 2020-08-18 清华大学 内螺纹磨削过程的磨削力测量方法
CN112917261A (zh) * 2021-01-21 2021-06-08 傅阳 一种轴承加工制造用轴承圈内表面打磨装置

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DE19511882B4 (de) * 1995-03-31 2005-01-05 Audi Ag Verfahren zum Verfestigen von Werkstückoberflächen
DE60136472D1 (de) * 2000-09-05 2008-12-18 Makino Inc Werkstückmessvorrichtung und verfahren
CN101992413B (zh) * 2009-08-25 2013-04-10 鸿富锦精密工业（深圳）有限公司 研磨装置
CN102019576B (zh) * 2009-09-11 2014-01-15 鸿富锦精密工业（深圳）有限公司 弧面研磨装置
TW201200293A (en) * 2010-06-24 2012-01-01 Hon Hai Prec Ind Co Ltd Polishing device
CN102294642B (zh) * 2010-06-25 2014-03-26 鸿富锦精密工业（深圳）有限公司 抛光装置
JP5814111B2 (ja) * 2011-12-28 2015-11-17 Ntn株式会社 研削盤の測定異常機能付き加工径測定装置
CN105881121B (zh) * 2013-12-16 2018-01-12 海宁奇晟轴承有限公司 一种改进的轴承外圈的外周面打磨机
CN104227546B (zh) * 2014-08-13 2017-04-12 无锡市索菲机械电子有限公司 一种轴承滚道超精机超精头主轴进、退机构及其使用方法
CN108466140B (zh) * 2018-03-19 2020-03-17 洛阳Lyc轴承有限公司 航空薄壁轴承非圆滚道加工方法
ES2738949A1 (es) * 2018-07-25 2020-01-27 Morilla Antonio Garcia Rectificadora de rodaduras
CN108789160B (zh) * 2018-07-30 2020-06-26 江苏亚奥精密机械有限公司 轴承圈加工装置
CN114102288B (zh) * 2022-01-07 2022-10-14 奇精机械股份有限公司 一种汽车轴承的批量打磨装置
CN117863065B (zh) * 2024-03-11 2024-05-10 太原理工大学 用于航空发动机轴承套圈的分布式抛磨装置及方法

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111546235A (zh) * 2020-04-02 2020-08-18 清华大学 内螺纹磨削过程的磨削力测量方法
CN111546235B (zh) * 2020-04-02 2021-07-06 清华大学 内螺纹磨削过程的磨削力测量方法
CN112917261A (zh) * 2021-01-21 2021-06-08 傅阳 一种轴承加工制造用轴承圈内表面打磨装置

Also Published As

Publication number Publication date
CZ279086B6 (en) 1994-12-15
JP2530958B2 (ja) 1996-09-04
DE4033727C1 (fr) 1992-02-20
EP0482343A3 (en) 1992-08-26
US5679061A (en) 1997-10-21
JPH05131352A (ja) 1993-05-28
CS322291A3 (en) 1992-05-13
RU2076034C1 (ru) 1997-03-27
DE9017792U1 (de) 1992-01-16
EP0482343A2 (fr) 1992-04-29

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