EP2260975B1 - Rectifieuse plane et procédé de traitement de pièce usinée par rectification plane - Google Patents

Rectifieuse plane et procédé de traitement de pièce usinée par rectification plane Download PDF

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Publication number
EP2260975B1
EP2260975B1 EP09007668A EP09007668A EP2260975B1 EP 2260975 B1 EP2260975 B1 EP 2260975B1 EP 09007668 A EP09007668 A EP 09007668A EP 09007668 A EP09007668 A EP 09007668A EP 2260975 B1 EP2260975 B1 EP 2260975B1
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EP
European Patent Office
Prior art keywords
workpiece
workpiece holder
surface grinding
grinding machine
holder
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
EP09007668A
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German (de)
English (en)
Other versions
EP2260975A1 (fr
Inventor
Harald Stöckel
Markus Dipl.-Ing. Winkens (FH)
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 AT09007668T priority Critical patent/ATE497860T1/de
Priority to DE502009000370T priority patent/DE502009000370D1/de
Priority to EP09007668A priority patent/EP2260975B1/fr
Publication of EP2260975A1 publication Critical patent/EP2260975A1/fr
Application granted granted Critical
Publication of EP2260975B1 publication Critical patent/EP2260975B1/fr
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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
    • 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
    • B24B49/02—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 according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
    • 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
    • B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
    • 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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
    • B24B7/17—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings for simultaneously grinding opposite and parallel end faces, e.g. double disc grinders

Definitions

  • the present invention relates to a surface grinding machine, comprising at least one grinding tool and a movably drivable workpiece holder for holding at least one workpiece, wherein at least a portion of the workpiece holder from a loading area, in which the workpiece holder can be equipped with at least one workpiece, over a processing area, in which at least a workpiece held on the workpiece holder is in engagement with the grinding tool, is movable into a removal area for removing a machined workpiece.
  • Such surface grinding machines are from the US 5,121,572 and from the US 1,436,309 known.
  • a workpiece holder for holding a workpiece, which is inserted in a pendulum fashion into and out of a processing region.
  • the workpiece holder is equipped in a placement area of the surface grinding machine with at least one workpiece and the workpiece holder is supplied together with the workpiece a processing area.
  • the processing area has two opposite ends. The workpiece is fed to the processing area from a first end and led out of the processing area after passing through the processing area at its second end. Subsequently, the direction of movement of the workpiece holder is reversed, so that the workpiece from the second end of the processing area ago introduced into this and out at the first end out of the processing area.
  • the present invention has the object to provide a surface grinding machine, which allows for the lowest possible non-productive times a highly accurate surface grinding of workpieces.
  • the surface grinding machine according to the invention makes it possible to equip the workpiece holder with an increased number of workpieces compared to the pendulum grinding. This is because the moving direction of the workpiece holder is not reversed but maintained, so that a workpiece can be supplied from the loading area to the removal area via the machining area and, if necessary, remain on the workpiece holder and returned to the processing area through the placement area.
  • the surface grinding machine according to the invention makes it possible to guide workpieces through the processing area several times, whereby a so-called “Aus85n” or “sparking" of workpieces can be realized, the workpiece remains on the workpiece holder and does not need to be re-clamped.
  • the arranged in the removal area handling device is optionally convertible into two positions.
  • a removal position a removal of an at least once machined workpiece from the workpiece holder takes place.
  • a transport position the workpiece, which has been machined at least once, remains on the workpiece holder and, while maintaining the direction of movement of the workpiece holder, is transported out of the removal area into the processing area via the placement area, where the workpiece can be processed at least once more.
  • the surface grinding machine comprises a measuring device for measuring the geometry of the machined workpiece. This is in particular a thickness measuring device.
  • the thickness measuring device makes it possible to compare an actual geometry of the workpiece obtained after a machining operation with a predefinable desired geometry in order to be able to decide whether the workpiece is to be fed again to the machining area.
  • the measuring device is arranged between the processing area and the handling device, so that a workpiece having a desired geometry can be removed from the workpiece holder immediately after passing through the measuring device by means of the handling device.
  • a control device for controlling the handling device is provided as a function of the result of a measurement of the geometry of the machined workpiece. This allows automated processing of a workpiece, in particular a multiple machining.
  • the removal of a machined workpiece is gravity-assisted, so that it is possible to dispense with a drive, which is possible in principle, for moving the workpiece relative to the workpiece holder.
  • the handling direction has a guide surface for guiding a workpiece whose position and / or position is adjustable. This makes it possible to influence a movement path of the workpiece such that, depending on the position and / or position of the guide surface, the workpiece remains on the workpiece holder or is removed therefrom.
  • the guide surface is formed as a bearing surface, whereby a particularly gentle guidance of a machined workpiece is made possible.
  • a transfer can in particular be effected by means of a handling device in the form of a gripping system, which grips the workpiece and conveys it from the plane of movement of the workpiece holder to a higher level.
  • the gripping system is, for example, a mechanical, magnetic or pneumatic system.
  • the gripping system may be stationarily positioned in the removal area or movable, in particular along a straight or a circular trajectory.
  • the workpiece holder has a plurality of workpiece holders, so that a plurality of workpieces can be held on the workpiece holder.
  • a reversal of the direction of movement of the workpiece holder it is possible to process a plurality of workpieces in batches, so to equip a workpiece holder with multiple workpieces and to drive the workpiece holder until all workpieces have reached a desired geometry.
  • the surface grinding machine is preferably a double-surface grinding machine which has two grinding wheels lying opposite one another. The distance between the two grinding wheels defines a grinding gap in which workpieces can be machined on opposite workpiece surfaces.
  • the invention further relates to a method for surface grinding workpiece machining, wherein at least a portion of a workpiece holder from a loading area, in which the workpiece holder is equipped with at least one workpiece, over a processing area in which the workpiece held on the workpiece holder in engagement with at least one grinding tool is moved into a removal area for removing the machined workpiece is moved.
  • the present invention is based on the further object of providing a method for surface-grinding workpiece machining, which permits highly precise surface grinding of workpieces with as few auxiliary times as possible.
  • This object is achieved in a method mentioned above according to the invention in that in the removal region, the movement of the machined workpiece is controlled such that it is selectively removed from the workpiece holder or held on the workpiece holder and fed again to the processing area while maintaining a direction of movement of the workpiece holder becomes.
  • An embodiment of an in FIG. 1 Plane grinding machine designated overall by the reference numeral 10 is designed as a double-surface grinding machine and comprises two grinding wheels, of which in FIG. 1 an upper grinding wheel 12 is shown.
  • the upper grinding wheel 12 and the lower grinding wheel are each rotatably driven about a grinding wheel axis 14.
  • the surface grinding machine 10 further comprises a disc-shaped workpiece holder 16 which is rotatably driven about a workpiece holder axis 17.
  • the workpiece holder axis 17 and the grinding wheel axis 14 are mutually parallel or inclined by a few degrees, for example up to a maximum of 5 °, relative to each other.
  • the workpiece holder 16 comprises a plurality of workpiece holders 18, which are preferably spaced apart identically in the radial direction relative to the workpiece holder axis 17 and are also preferably identically spaced relative to each other in the circumferential direction.
  • the workpiece holder 16 has at least two workpiece holders 18.
  • the workpiece holder on a matched to the geometry of the workpieces to be machined the highest possible number of workpiece holders 18, for example, ten workpiece holders 18 or more.
  • a workpiece holder 18 may be formed for example by a hole-shaped material recess of the workpiece holder 16, which serves to receive a workpiece 20.
  • the surface grinding machine 10 has a loading area 22, in which unprocessed workpieces 20 can be inserted into a workpiece holder 18.
  • the insertion can be done by hand or by means of a known in principle and therefore not shown loading device, which in particular has a magazine for storing unprocessed workpieces.
  • the surface grinding machine 10 further includes a processing area 24 in which workpieces 20 held on the workpiece holder 16 are in face-grinding engagement with the upper grinding tool 12 and with the lower grinding tool.
  • the surface grinding machine 10 comprises a removal region 26, in which workpieces 20 can be removed from the workpiece holders 18.
  • the upper grinding tool 12 and the lower grinding tool are spaced apart from each other, so that a grinding gap is formed, in which workpieces 20 are received and supported in relation to the direction of gravity down and up.
  • the Workpieces 20 supported in the loading area 22 by means of a workpiece support 28 downwards.
  • the workpieces are supported at the bottom by means of a workpiece support 30.
  • the surface grinding machine 10 comprises a measuring device 32, which is arranged in the removal region 26. With the aid of the measuring device 32, a parallel to the extension direction of the grinding gap applied thickness of a workpiece 20 is measured.
  • the measuring device 32 comprises two measuring pins 34 and 36, which can be brought to this on opposite sides of a workpiece 20 and whose distance relative to each other corresponds to the thickness of the workpiece 20 to be measured.
  • the surface grinding machine 10 further comprises a handling device 38, which is arranged in the removal region 26.
  • the handling device 38 has a guide element 40 with a guide surface 42 for guiding a workpiece 20.
  • the guide element 40 is movable by means of a drive device 44, so that the guide element 40 can assume different positions.
  • the drive device 44 is designed, for example, in the form of a linear drive 46.
  • the handling device 38 further comprises a workpiece removal 48, which serves to guide workpieces 20, which are removed from the workpiece holder 16.
  • the workpiece removal 48 is formed for example in the form of a chute.
  • the workpiece holder 16 is common with in the workpiece holders 18 recorded workpieces 20 in a direction of movement 50 rotatably moves around the workpiece holder axis 17 around.
  • a workpiece 20 is supplied from the loading area 22 to the processing area 24, where it is processed by grinding.
  • a machined workpiece 20 is first measured using the measuring device 32.
  • the measuring device 32 is connected to a control device 51, which serves to control the drive device 44. If it is detected by means of the measuring device 32 that a workpiece 20 has not yet reached a predetermined desired thickness after passing through the processing region 24, the handling device 38 remains in its in the FIGS. 1 and 2 illustrated transport position. In the transport position, the guide element 40 is positioned such that a workpiece 20 is supported by the guide surface 42 in the region of the guide element 40, so that it remains on the workpiece holder 16 and can be fed to the placement region 22 again. From there, the workpiece 20, which has already been machined at least once, returns to the machining area 24, where it can be re-machined, while maintaining a grinding gap or reducing a grinding gap.
  • the guide member 40 of the handling device 38 by means of the drive means 44 from its in the FIGS. 1 and 2 shown transport position in a in the Figures 3 and 4 shown removal position to be transferred.
  • the guide member 40 for example, in relation to the workpiece holder axis 17 radial Moved direction so that a workpiece support formed by means of the workpiece supports 30 and 28 at the level of the guide member 40 is interrupted.
  • a workpiece 20 supported by gravity, can be transferred from the workpiece support 30 out of a workpiece holder 18 into the workpiece removal 48.
  • the guide member 40 can again in one in the FIGS. 1 and 2 shown transport position of the handling device 38 are transferred.
  • FIGS. 6 to 9 shown further embodiment of a surface grinding machine 10 has a to the in the FIGS. 1 to 5 Plane grinding machine 10 shown similar construction. Therefore, with respect to the structure and operation of the surface grinding machine according to FIGS. 6 to 9 to the description above.
  • the surface grinding machine 10 according to FIGS. 6 to 9 differs from the surface grinding machine 10 described above FIGS. 1 to 5 In the embodiment of the handling device 38.
  • a guide member 40 is also provided with a guide surface 42, which by means of a drive device 44 between a transport position (cf. FIGS. 6 and 7 ) and a removal position (cf. FIGS. 8 and 9 ) is movable.
  • the guide element 40 is pivotable about a pivot axis 52, so that the inclination of the guide surface 42 is adjustable. In the transport position of the guide element 40, the guide surface 42 is substantially horizontal. In this position, that creates Guide member 40 connects between the workpiece supports 30 and 28th
  • the guide surface 42 In an inclined position of the guide member 40, which corresponds to the removal position of the handling device 38, the guide surface 42 is inclined relative to a horizontal direction. As a result, a workpiece, which is initially still supported by the workpiece support 30, gravity-assisted removed from a workpiece holder 18. The workpiece 20 slips over the inclined guide surface 42 and reaches the workpiece removal 48.
  • the drive device 44 in the form of a linear drive 46 is preferably pivotally connected to the guide element 40 and held pivotably on a stationary bearing shaft 54.
  • FIG. 7 In addition to the upper grinding tool 12 and a lower grinding tool 56 is shown.
  • the grinding tools 12 and 56 are spaced around a grinding gap 58 relative to each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Crushing And Grinding (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Claims (10)

  1. Rectifieuse plane (10), comprenant au moins un outil de rectification (12, 56) et un support de pièce d'oeuvre (16) mobile pour maintenir au moins une pièce d'oeuvre (20), une partie au moins du support de pièce d'oeuvre (16) pouvant être déplacée depuis une zone de chargement (22) dans laquelle au moins une pièce d'oeuvre (20) peut être chargée sur le support de pièce d'oeuvre (16), en passant par une zone d'usinage (24) dans laquelle au moins une pièce d'oeuvre (20) maintenue sur le support de pièce d'oeuvre (16) est en prise avec l'outil de rectification (12, 56), jusqu'à une zone d'évacuation (26) d'une pièce d'oeuvre (20) usinée, caractérisée en ce que la zone d'évacuation (26) comprend un dispositif manipulateur (38) pour commander le mouvement d'une pièce d'oeuvre (20) usinée, en ce que le dispositif manipulateur (38) peut être amené dans une position d'évacuation et dans une position de transport, en ce que dans la position d'évacuation la pièce d'oeuvre (20) usinée est évacuée du support de pièce d'oeuvre (16), en ce que dans la position de transport la pièce d'oeuvre (20) usinée reste maintenue sur le support de pièce d'oeuvre (16) et peut être ramenée dans la zone d'usinage (24) en conservant un sens de déplacement (50) du support de pièce d'oeuvre (16), en ce qu'il est prévu un dispositif (32) pour mesurer la géométrie de la pièce d'oeuvre (20) usinée et en ce qu'il est prévu un dispositif de commande du dispositif manipulateur (38) pour commander le mouvement de la pièce d'oeuvre (20) usinée en fonction du résultat d'une mesure de la géométrie de la pièce d'oeuvre (20) usinée dans la zone d'évacuation (26), de façon à l'évacuer du support de pièce d'oeuvre (16) ou au choix la laisser maintenue sur le support de pièce d'oeuvre (16) et la ramener dans la zone d'usinage (24) en conservant un sens de déplacement (50) du support de pièce d'oeuvre (16).
  2. Rectifieuse plane (10) selon la revendication 1, caractérisée en ce que l'évacuation d'une pièce d'oeuvre (20) usinée se fait avec l'aide de la force de gravité.
  3. Rectifieuse plane (10) selon l'une des revendications précédentes, caractérisée en ce que le dispositif manipulateur (38) présente une surface de guidage (42) pour guider une pièce d'oeuvre (20) dont la position et/ou l'orientation est réglable.
  4. Rectifieuse plane (10) selon la revendication 3, caractérisée en ce que la surface de guidage (42) est réalisée sous la forme d'une surface d'appui.
  5. Rectifieuse plane (10) selon la revendication 3 ou la revendication 4, caractérisée en ce que l'inclinaison de la surface de guidage (42) peut être modifiée.
  6. Rectifieuse plane (10) selon l'une des revendications précédentes, caractérisée en ce que le dispositif de mesure (32) est disposé entre la zone d'usinage (24) et le dispositif manipulateur (38).
  7. Rectifieuse plane (10) selon l'une des revendications précédentes, caractérisée en ce que le support de pièce d'oeuvre (16) est entraîné en rotation.
  8. Rectifieuse plane (10) selon l'une des revendications précédentes, caractérisée en ce que le support de pièce d'oeuvre (16) présente une pluralité de fixations de pièces d'oeuvre (18).
  9. Rectifieuse plane (10) selon l'une des revendications précédentes, caractérisée en ce que la rectifieuse plane (10) est réalisée sous la forme d'une rectifieuse plane double face.
  10. Procédé d'usinage de pièces d'oeuvre par rectification plane, dans lequel au moins une partie d'un support de pièce d'oeuvre (16) est déplacée depuis une zone de chargement (22) dans laquelle au moins une pièce d'oeuvre (20) peut être chargée sur le support de pièce d'oeuvre (16), en passant par une zone d'usinage (24) dans laquelle la pièce d'oeuvre (20) maintenue sur le support de pièce d'oeuvre (16) est en prise avec au moins un outil de rectification (12, 56), jusqu'à une zone d'évacuation (26) de la pièce d'oeuvre (20) usinée, caractérisé en ce que dans la zone d'évacuation (26) le mouvement de la pièce d'oeuvre (20) usinée est commandé de manière à l'évacuer du support de pièce d'oeuvre (16) ou au choix la laisser maintenue sur le support de pièce d'oeuvre (16) et la ramener dans la zone d'usinage (24) en conservant un sens de déplacement (50) du support de pièce d'oeuvre (16).
EP09007668A 2009-06-10 2009-06-10 Rectifieuse plane et procédé de traitement de pièce usinée par rectification plane Active EP2260975B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT09007668T ATE497860T1 (de) 2009-06-10 2009-06-10 Planschleifmaschine und verfahren zur planschleifenden werkstückbearbeitung
DE502009000370T DE502009000370D1 (de) 2009-06-10 2009-06-10 Planschleifmaschine und Verfahren zur planschleifenden Werkstückbearbeitung
EP09007668A EP2260975B1 (fr) 2009-06-10 2009-06-10 Rectifieuse plane et procédé de traitement de pièce usinée par rectification plane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09007668A EP2260975B1 (fr) 2009-06-10 2009-06-10 Rectifieuse plane et procédé de traitement de pièce usinée par rectification plane

Publications (2)

Publication Number Publication Date
EP2260975A1 EP2260975A1 (fr) 2010-12-15
EP2260975B1 true EP2260975B1 (fr) 2011-02-09

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EP09007668A Active EP2260975B1 (fr) 2009-06-10 2009-06-10 Rectifieuse plane et procédé de traitement de pièce usinée par rectification plane

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EP (1) EP2260975B1 (fr)
AT (1) ATE497860T1 (fr)
DE (1) DE502009000370D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2835219A1 (fr) * 2013-08-05 2015-02-11 Diskus Werke Schleiftechnik GmbH Procédé et dispositif destiné à la rectification plane latérale des pièces à usiner
EP3356081B1 (fr) * 2016-05-26 2019-07-17 Ortadogu Rulman Sanayi Ve Ticaret Anonim Sirketi Système de meulage de face latérale pour bagues de roulement
CN110253390A (zh) * 2019-06-19 2019-09-20 浙江三纵精密机械有限公司 叶片泵叶片宽度加工研磨设备
WO2021110249A1 (fr) * 2019-12-03 2021-06-10 Supfina Grieshaber Gmbh & Co. Kg Machine-outil, en particulier ponceuse, dotée d'un dispositif de chargement
CN116141194A (zh) * 2023-02-28 2023-05-23 肇庆高峰机械科技有限公司 一种双端面磨床用自动上料装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1436309A (en) * 1921-01-08 1922-11-21 Elmer F Frost Grinding machine
US2709876A (en) * 1954-04-20 1955-06-07 Norton Co Lapping machine
US5121572A (en) * 1990-11-06 1992-06-16 Timesavers, Inc. Opposed disc deburring system
DE10137862A1 (de) * 2001-08-02 2002-02-14 Wacker Siltronic Halbleitermat Verfahren und Vorrichtung zum Beladen einer Doppelseitigen-Poliermaschine
DE10345335B4 (de) * 2003-09-22 2012-04-26 Supfina Grieshaber Gmbh & Co. Kg Flachschleifmaschine und Verfahren zur Ansteuerung

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Publication number Publication date
EP2260975A1 (fr) 2010-12-15
DE502009000370D1 (de) 2011-03-24
ATE497860T1 (de) 2011-02-15

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