EP2184133B1 - Machine de finissage dotée d'une unité de retournement de pierre - Google Patents

Machine de finissage dotée d'une unité de retournement de pierre Download PDF

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Publication number
EP2184133B1
EP2184133B1 EP08019311A EP08019311A EP2184133B1 EP 2184133 B1 EP2184133 B1 EP 2184133B1 EP 08019311 A EP08019311 A EP 08019311A EP 08019311 A EP08019311 A EP 08019311A EP 2184133 B1 EP2184133 B1 EP 2184133B1
Authority
EP
European Patent Office
Prior art keywords
stone
finishing
turning unit
workpiece
stone turning
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 - Fee Related
Application number
EP08019311A
Other languages
German (de)
English (en)
Other versions
EP2184133A1 (fr
Inventor
Jürgen Dipl.-Ing. Roser
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.)
Supfina Grieshaber GmbH and Co KG
Original Assignee
Supfina Grieshaber 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 Supfina Grieshaber GmbH and Co KG filed Critical Supfina Grieshaber GmbH and Co KG
Priority to DE502008001096T priority Critical patent/DE502008001096D1/de
Priority to EP08019311A priority patent/EP2184133B1/fr
Priority to US12/606,855 priority patent/US8562391B2/en
Priority to CN200910208729.7A priority patent/CN101733681B/zh
Publication of EP2184133A1 publication Critical patent/EP2184133A1/fr
Application granted granted Critical
Publication of EP2184133B1 publication Critical patent/EP2184133B1/fr
Expired - Fee Related legal-status Critical Current
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
    • 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
    • B24B33/00—Honing machines or devices; Accessories therefor
    • B24B33/04—Honing machines or devices; Accessories therefor designed for working external surfaces of revolution
    • 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power

Definitions

  • the invention relates to a finishing machine having at least two finishing stones, wherein the finishing stones are mounted on a stone turning unit and wherein the stone turning unit positions one of the finishing stones so that it can be brought into engagement with the workpiece to be machined.
  • Finishing machines with several finishing stones are used when the finish machining can not be completed in one processing step, but rather when first finishing with a first finishing stone and even finer finishing done with a second finishing stone. If necessary, more finishing stones can be provided.
  • the invention has for its object to provide a finishing machine with a stone turning unit, which overcomes the disadvantages known from the prior art and thus enables a more compact design with simultaneously reduced oscillating masses and lower power requirement.
  • finishing machine with at least two finishing stones, wherein the finishing stones are mounted on a stone turning unit and wherein the stone turning unit positions one of the finishing stones, that it can be brought into engagement with the workpiece to be machined, wherein the or the workpieces to be machined are clamped on a workpiece holder and wherein the workpiece holder is driven by a controllable rotary drive, achieved in that the stone turning unit with the rotary drive of the workpiece holder can be coupled.
  • the already existing rotary drive the workpiece holder can take on an additional function.
  • This function consists in turning the stone turning unit if necessary so far that the respectively desired finishing stone is brought into the processing position. Since the replacement of the finishing stones by turning the stone turning unit, only takes place when the workpiece is not being processed, the rotary drive is not busy in this time interval anyway and can take over the new function of the invention without affecting performance in the machining of the workpiece.
  • the rotary drive used according to the invention for driving the stone turning unit does not have to go along with the oscillating movement of the finishing stone and the stone turning unit, so that the stone turn unit according to the invention builds considerably more easily and thus also causes only smaller mass forces if it is set into an oscillating movement during machining. This also saves drive power, which increases considerably the application areas and the performance of the finishing machine according to the invention has an effect.
  • the stone turning unit is rotatably mounted and comprises a controllable clamping device. This makes it possible, with dissolved clamping device at times when no workpiece is machined to couple the rotary drive of the workpiece holder with the stone turning unit and by suitable control of the rotary drive of the workpiece holder to turn the stone turning unit so far that the desired finishing stone passes into a processing position ,
  • the stone turning unit is clamped again by the controllable clamping device is driven accordingly, so that during the machining of the workpiece, the stone turning unit can not rotate and thus the desired finishing stone remains in engagement with the workpiece to be machined.
  • a first switchable and controllable coupling according to the invention between rotary drive of the workpiece holder and the stone turning unit provides that the rotary drive comprises a first gear, preferably a first spur gear, that the stone turning unit comprises a second gear, preferably a second spur gear, and that the coupling of rotary drive and stone turning unit is performed by bringing the first gear and the second gear into engagement with each other.
  • the angle of rotation about which the stone turning unit is rotated can be determined directly via an angular detection of the rotary drive of the workpiece holder or of the workpiece holder be determined.
  • a rotation angle sensor of the workpiece holder can be used for the positioning of the stone turning unit.
  • the rotary drive and the stone turning unit can be coupled to each other by means of a dog clutch.
  • the processing of the workpiece or works clamped on the workpiece is interrupted, while the stone turning unit is coupled to the rotary drive.
  • the stone turning unit rotates relative to the workpiece, the stone turning unit is fixed or clamped during the processing of the workpiece or work.
  • the method according to the invention is simple in an already existing numerical control of the machine tool integrable and may also include more than two finishing stones. Namely, when the finish machining is carried out in three steps, a first finishing stone, a second finishing stone and a third finishing stone for the finishing can be brought into engagement with the workpiece to be machined, in each case the above-mentioned inventive method is used.
  • FIG. 1a an embodiment of a finishing machine according to the invention is shown schematically and reduced to the essentials in a side view.
  • the finishing machine comprises a workpiece holder 1, on which a workpiece 3 is tensioned.
  • the workpiece 3 is formed as a cylindrical ring whose outer surface is finished by superfinishing.
  • the workpiece holder 1 is coupled to a rotary drive 5, which allows rotation of the workpiece holder 1 and of the workpiece 3 clamped thereon about an axis of rotation 7.
  • the rotary drive 5 is coupled via electrical lines to a control device (not shown) of the finishing machine and is driven according to the requirements of finishing processing.
  • a control device not shown
  • an unillustrated rotation angle sensor is integrated, which is integrated into the control of the finishing machine.
  • a stone turning unit 11 is shown on the in FIG. 1a right side of the workpiece 3.
  • the stone turning unit 11 is rotatably supported in bearings 13.
  • the bearings 13 may be formed, for example, as deep groove ball bearings or tapered roller bearings.
  • the stone turning unit 11 has a controllable clamping device, which in FIG. 1a not shown.
  • This clamping device can be designed, for example, in the form of a jaw brake as a non-positive clamping device or as a positive clamping device with the aid of a radially retractable and retractable locking pin, which can be retracted into corresponding grooves or recesses (not shown) of the axis 15 of the stone turning unit 11.
  • a first finishing stone 17 and a second finishing stone 19 are arranged on the stone turning unit 11. The arrangement of the finishing stones 17 and 19 is according to the plan view FIG. 1b ) to recognize better.
  • a second gear which is designed as a spur gear 21.
  • the pitch circle diameter of the first gear 9 and the second gear 21 and the distance between the rotation axis 7 of the rotary drive 1 and the rotation axis 23 of the stone turning unit 11 are coordinated so that the first gear 9 and the second gear 21 engage each other when the Stone turning unit 11 is lowered in the direction of the Y-axis, until the first gear 9 and the second gear 21 are at the same height.
  • the rotary drive 5 is controlled so that the stone turning unit 11 at the in FIG. 1 illustrated embodiment is rotated by 180 °, so that the first finishing stone 17 and the second finishing stone 19 change position relative to the workpiece 3. Subsequently, the stone turning unit is locked again with the clamping device, not shown, and in the direction of the positive Y-axis in FIG. 1a Move upward in the direction of the Y-axis until the second finishing stone 19 in engagement with the surface to be machined of the workpiece 3 can be brought.
  • the approach of the second finishing stone 19 to the workpiece 3 is then carried out in a conventional manner by a corresponding movement of the stone turning unit in the direction of the negative X-axis.
  • the stone turning unit 11 according to the invention can be very simple, space-saving and lightweight. This is particularly advantageous because the stone turning unit 11 or the finishing stone 17 or 19 located in engagement with the workpiece 3 must perform an oscillating movement in the direction of the Y axis when machining the workpiece 3 in order to obtain the grinding pattern characteristic of superfinishing to create.
  • FIG. 1 described positive coupling between the rotary drive 5 and stone turning unit 11 and a frictional coupling, for example via a rubberized friction wheel (not shown) is possible.
  • a rotation angle sensor is provided on the shaft 15 of the stone turning unit 11, so that regardless of the slip between the friction wheel of the rotary drive 5 and the stone turning unit 11, the exact position of the stone turning unit or the Finishing stones 17 and 19 can be detected by the machine control.
  • FIG. 2 another embodiment of a finishing stones according to the invention is shown.
  • the stone turning unit is disposed inside the cylindrical workpiece 3 and is positioned relative to the rotary drive 5 so that the rotation axis 7 of the rotary drive 5 and the rotation axis 20 of the stone turning unit are coaxial with each other. Then, the stone turning unit is lowered in the direction of the negative Y-axis so far down in the direction of the rotary drive or the workpiece holder 1 until a positive connection between the rotary drive 5 and workpiece holder 1 and the stone turning unit 11 is made.
  • FIG. 2 another embodiment of a finishing stones according to the invention is shown.
  • the stone turning unit is disposed inside the cylindrical workpiece 3 and is positioned relative to the rotary drive 5 so that the rotation axis 7 of the rotary drive 5 and the rotation axis 20 of the stone turning unit are coaxial with each other. Then, the stone turning unit is lowered in the direction of the negative Y-axis so far down in the direction of the rotary drive or the work
  • a radially arranged projection 23 is provided for this purpose in the workpiece holder 1, which cooperates with a correspondingly shaped groove 25 at the lower end of the stone turning unit 11 in the manner of a dog clutch.
  • a positive coupling of stone turning unit 11 and rotary drive 5 instead of a positive coupling of stone turning unit 11 and rotary drive 5 to produce a frictional coupling using a friction surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Claims (8)

  1. Machine de finissage dotée d'au moins deux pierres de finissage (17, 19), les pierres de finissage (17, 19) étant fixées sur une unité de retournement de pierre (11), laquelle positionne une des pierres de finissage (17, 19) de manière à ce qu'elle puisse être mise en contact avec la pièce à usiner (3), la ou les pièces à usiner (3) étant montée(s) sur un élément de fixation de pièce (1) apte à être entraîné par un dispositif d'entraînement en rotation (5) commandable, caractérisée en ce que l'unité de retournement de pierre (11) peut être couplée au dispositif d'entraînement en rotation (5) de l'élément de fixation de pièce (1).
  2. Machine de finissage selon la revendication 1, caractérisée en ce que l'unité de retournement de pierre (11) est montée rotative (13).
  3. Machine de finissage selon l'une quelconque des revendications précédentes, caractérisée en ce que l'unité de retournement de pierre (11) comprend un dispositif de serrage amovible.
  4. Machine de finissage selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif d'entraînement en rotation (5) comprend une première roue dentée, de préférence une première roue droite (9), en ce que l'unité de retournement de pierre (11) comprend une seconde roue dentée, de préférence une seconde roue droite (21), et en ce que le couplage du dispositif d'entraînement en rotation (5) et de l'unité de retournement de pierre (11) résulte de l'engrènement de la première roue dentée (9) et de la seconde roue dentée (21).
  5. Machine de finissage selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif d'entraînement en rotation (5) et l'unité de retournement de pierre (11) peuvent être couplés entre eux par crabotage (23, 25).
  6. Procédé de remplacement d'une pierre de finissage (17, 19) d'une machine de finissage, apte à être mise en contact avec une pièce à usiner (3), au moins deux pierres de finissage (17, 19) étant fixées sur une unité de retournement de pierre (11), la ou les pièces à usiner (3) étant montée(s) sur un élément de fixation de pièce (1) apte à être entraîné par un dispositif d'entraînement en rotation (5) commandable, et l'unité de retournement de pierre (11) pouvant être couplée au dispositif d'entraînement en rotation (5) de l'élément de fixation de pièce (1), caractérisé par les étapes suivantes :
    couplage de l'unité de retournement de pierre (11) et du dispositif d'entraînement en rotation (5),
    commande du dispositif d'entraînement en rotation (5) de manière à ce qu'une seconde pierre de finition (19) vienne prendre la position d'une première pierre de finition (17).
  7. Procédé selon la revendication 6, caractérisé en ce que l'usinage de la ou des pièce(s) (3) montées sur l'élément de fixation de pièce (1) est interrompu pendant que l'unité de retournement de pierre (11) est couplé au dispositif d'entraînement en rotation (5).
  8. Procédé selon la revendication 6 ou la revendication 7, caractérisé en ce que l'unité de retournement de pierre (11) est immobilisée et/ou bloquée pendant l'usinage de la ou des pièces (3) montée(s) sur l'élément de fixation de pièce (1).
EP08019311A 2008-11-05 2008-11-05 Machine de finissage dotée d'une unité de retournement de pierre Expired - Fee Related EP2184133B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE502008001096T DE502008001096D1 (de) 2008-11-05 2008-11-05 Finishmaschine mit einer Steinwendeeinheit
EP08019311A EP2184133B1 (fr) 2008-11-05 2008-11-05 Machine de finissage dotée d'une unité de retournement de pierre
US12/606,855 US8562391B2 (en) 2008-11-05 2009-10-27 Finishing machine with stone rotating unit
CN200910208729.7A CN101733681B (zh) 2008-11-05 2009-11-05 具有磨盘式回转单元的研磨机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08019311A EP2184133B1 (fr) 2008-11-05 2008-11-05 Machine de finissage dotée d'une unité de retournement de pierre

Publications (2)

Publication Number Publication Date
EP2184133A1 EP2184133A1 (fr) 2010-05-12
EP2184133B1 true EP2184133B1 (fr) 2010-08-04

Family

ID=40459618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08019311A Expired - Fee Related EP2184133B1 (fr) 2008-11-05 2008-11-05 Machine de finissage dotée d'une unité de retournement de pierre

Country Status (4)

Country Link
US (1) US8562391B2 (fr)
EP (1) EP2184133B1 (fr)
CN (1) CN101733681B (fr)
DE (1) DE502008001096D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101961849B (zh) * 2010-07-21 2012-07-04 中国科学院国家天文台南京天文光学技术研究所 望远镜摩擦传动超大直径摩擦盘的现场磨削方法及其设备
US10406648B2 (en) * 2012-01-19 2019-09-10 Newgrind Inc. Apparatus for surface abrasion
CN110900426A (zh) * 2019-12-03 2020-03-24 徐州华邦专用汽车有限公司 一种专用汽车配件用抛光装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2026096A (en) * 1933-02-28 1935-12-31 Muhlbauer Ernst Curt Grinding of rotating eccentric knives
GB456720A (en) * 1935-03-13 1936-11-13 Leo Arthur Kelsey Improvements in sharpening means for safety razors
DE2652025A1 (de) * 1975-12-10 1977-06-23 Esco Sa Schleif- und poliermaschine fuer werkzeuge
JPS53138598A (en) * 1977-05-10 1978-12-04 Inoue Japax Res Inc Grinding device
DE3133488C3 (de) * 1981-08-25 1994-07-28 Walter Ag Programmgesteuerte Werkzeugschleifmaschine
CH663923A5 (de) * 1983-09-24 1988-01-29 Hauni Werke Koerber & Co Kg Abrichteinrichtung fuer bahngesteuertes abrichten von schleifscheibenprofilen.
CN1056640A (zh) * 1990-05-19 1991-12-04 陈吉祥 粉碎装置
CH683970A5 (de) * 1991-08-28 1994-06-30 Reishauer Ag Verfahren und Maschine zur Zahnradfeinbearbeitung.
DE4426452C1 (de) * 1994-07-26 1995-09-07 Erwin Junker Verfahren und Maschine zum Schleifen von Nocken mit konkaven Flanken
DE19620813C2 (de) * 1996-05-23 2000-07-20 Junker Erwin Maschf Gmbh Verfahren und Vorrichtung zum Unrundschleifen von Nockenformen mit konkaven Flanken
JP4015291B2 (ja) * 1998-07-30 2007-11-28 シチズンホールディングス株式会社 円筒研削盤及びそのワーク軸、並びにこの円筒研削盤による平錐の加工方法
DE19921785B4 (de) * 1999-05-11 2005-11-24 Erwin Junker Maschinenfabrik Gmbh Verfahren zum Schleifen von konvexen Laufflächen und Außendurchmessern an Wellen mit wenigstens einem scheibenförmigen Wellenabschnitt sowie Schleifmaschine zur Durchführung des Verfahrens
US6595835B2 (en) * 2000-07-11 2003-07-22 Avs Supply, Inc. CD refacing system
CN1565804A (zh) * 2003-07-02 2005-01-19 黑龙江省体育科学研究所 便携式数控冰刀研磨机
JP4109683B2 (ja) * 2005-05-16 2008-07-02 中山精工株式会社 円筒研削盤用ワークドライブ装置
KR100795470B1 (ko) * 2007-03-15 2008-01-16 최욱현 고속 연마기능을 갖는 터닝가공장치 및 그 제어방법

Also Published As

Publication number Publication date
US20100112913A1 (en) 2010-05-06
CN101733681B (zh) 2013-11-06
CN101733681A (zh) 2010-06-16
DE502008001096D1 (de) 2010-09-16
US8562391B2 (en) 2013-10-22
EP2184133A1 (fr) 2010-05-12

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