EP1251997B1 - Tete de polissage pour une polisseuse - Google Patents

Tete de polissage pour une polisseuse Download PDF

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Publication number
EP1251997B1
EP1251997B1 EP01909601A EP01909601A EP1251997B1 EP 1251997 B1 EP1251997 B1 EP 1251997B1 EP 01909601 A EP01909601 A EP 01909601A EP 01909601 A EP01909601 A EP 01909601A EP 1251997 B1 EP1251997 B1 EP 1251997B1
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EP
European Patent Office
Prior art keywords
polishing
drive shaft
polishing head
head according
disc
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
EP01909601A
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German (de)
English (en)
Other versions
EP1251997B2 (fr
EP1251997A1 (fr
Inventor
Christoph KÜBLER
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.)
Carl Zeiss Vision International GmbH
Original Assignee
Carl Zeiss AG
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
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Application filed by Carl Zeiss AG filed Critical Carl Zeiss AG
Priority to EP03025546A priority Critical patent/EP1386694B2/fr
Publication of EP1251997A1 publication Critical patent/EP1251997A1/fr
Application granted granted Critical
Publication of EP1251997B1 publication Critical patent/EP1251997B1/fr
Publication of EP1251997B2 publication Critical patent/EP1251997B2/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
    • 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
    • B24B49/006—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 taking regard of the speed
    • 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
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/02—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made
    • 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
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • 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
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • 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
    • 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
    • B24B49/16—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 taking regard of the load

Definitions

  • the invention relates to a polishing head for a polishing machine according to the preamble of 1.
  • a film head is known from DE 1 239 211 B. known.
  • EP 727 280 B1 describes a polishing machine for polishing spherical lens surfaces known.
  • This polishing machine has an upper carriage which can be moved in an x direction on.
  • This slide is a tool spindle that can be rotated around a vertical axis is connected.
  • the tool spindle is used to hold a Dressing tool.
  • To hold the workpiece or the lens is one with a Work piece spindle connected to another slide.
  • the workpiece spindle and the Workpiece spindle with the dressing tool are at a fixed distance from each other arranged.
  • the carriage carrying these two spindles can be moved in the z direction.
  • WO 97/00155 describes a polishing machine and a method for polishing optical ones Known areas.
  • the buffing machine has a buffing head with an elastic Membrane is provided.
  • the membrane is pressurized Controlled application of force to the surface to be polished.
  • the disadvantage of this Polishing machine that the size of the surface of the surface to be polished Depends on the pressurization.
  • the polishing head with the elastic membrane is moved by an associated spring in the direction of the to be polished Prestressed surface.
  • To provide tiltability of the elastic membrane around a point on the axis of rotation in the area of the flexible membrane Hydraulic cylinder provided.
  • the force applied to the surface to be polished is by assigned sensors, rotating strips and solenoite.
  • the polishing of the optical surface is carried out in Dependence on the speed of the polishing head and on the to be polished Surface contact pressure controlled by pressurization.
  • DE 1 239 211 B discloses a gimbal-mounted optical grinding or polishing tool known.
  • An alignment member is provided to align the polishing plate elastic material.
  • This alignment member does not practice the tool from the spindle lifting force. It can easily be designed so that even a force can Tool on the all-round movable joint, e.g. B. draws a ball joint, wherein however the alignment force is so weak that the setting of the tool on it Workpiece under the effect of the working pressure is possible.
  • the use of such Tool allows the automatic loading of an optical grinding machine, because that Workpiece remains rigid and axially immobile on the spindle and without lateral Tilting away takes a precisely defined position relative to the loading device.
  • the object of the invention is a polishing head for polishing a free-form surface to provide a high quality optical surface can be polished and by using a constant polishing abrasion on the entire optical to be polished Surface can be guaranteed.
  • the polishing plate is connected in a rotationally fixed manner to the drive shaft it is possible that the polishing plate follows the surface contour on the one to be machined Surface rests. Due to the articulated connection, the polishing plate can tilt run so that it has a maximum polishing area on the surface to be polished rests.
  • the non-rotatable articulated connection Connect the polishing plate to the drive shaft using a spherical imbus joint. Because of this Ball imbus joint, it is possible to set the pivot point around which the polishing plate is in any Directions can be pivoted as close as possible to the surface to be polished Arrange polishing plates.
  • the close arrangement of the articulated connection to the polishing Surface of the polishing plate has the advantage that the polishing plate has the surface contours can respond quickly.
  • one or more Assign locking element to secure the connection between the drive shaft and the polishing head.
  • the Locking element ensures that the Kugelimbuskopf from the assigned recess can't slip out. This allows the polishing plate to move from the to without any problems polished surface to be removed.
  • Detachability of the connection can also easily different polishing plates against each other be replaced.
  • a piston assigned to the pressure chamber is operatively connected to the drive shaft so that pressurization of the Pressure chamber is transferred to the polishing plate via the drive shaft.
  • the drive shaft in the hollow cylinder Bearing elements e.g. a roller bearing or a ball bearing translationally light to store it movably. This storage ensures that when pressurized the pressure chamber, the drive shaft moves translationally in the hollow cylinder can move and thus the initiated translational movement or Force application is almost completely transferred to the polishing plate.
  • Bearing elements e.g. a roller bearing or a ball bearing translationally light to store it movably. This storage ensures that when pressurized the pressure chamber, the drive shaft moves translationally in the hollow cylinder can move and thus the initiated translational movement or Force application is almost completely transferred to the polishing plate.
  • the polishing head (1) shown in FIG. 1 has a polishing plate (3) with a polishing pad (5) on.
  • the polishing layer (5) lies on a surface (41) of a workpiece to be polished (39).
  • the polishing plate 3 is connected to a drive shaft (7) via the articulated connection. added. In the illustrated embodiment, this is non-rotatable articulated Connection provided a ball imbus joint.
  • the drive shaft (7) is on the The end of the side facing the polishing plate is provided with a spherical imbus head (19) a recess (13) formed in the polishing plate (3) engages.
  • a locking element for example a spring element or spring pin on the polishing plate, which in a recess on Ball imbus head protrudes into it.
  • the drive shaft (7) can be displaced translationally via the bearing element (23) and rotatably in a hollow cylinder (49).
  • the hollow cylinder (49) is rotationally driven via a drive, not shown, of the polishing machine, the rotary movement due to the non-rotatable connection through the bearing element (23) completely on the drive shaft (7) for the polishing head is transferred.
  • a hydraulic or pneumatic system which is used to act upon the polishing head with the required polishing pressure is provided.
  • This has a pressure chamber cylinder (31) with a piston (33) accommodated in a translationally displaceable manner. to Decoupling the piston (33) from the rotational movement of the drive shaft (7) and the Hollow cylinders can pivot between the pressure chamber cylinder (31) and the Hollow cylinder (49) and between the connecting rod (32) driven by the piston (33) and the Drive shaft (7) may be provided.
  • Pressure chamber cylinder (31) formed pressure chamber (29) with a pressure supply (35) assigned to a pressure control valve (37) and a pressure reservoir (36).
  • the rotationally fixed translationally movable coupling between the hollow cylinder (49) and the Drive shaft (7) takes place via a roller bearing (23).
  • the drive shaft (7) does not have one rotationally symmetrical outer profile (43), preferably a polygonal profile.
  • the Form fit between the outer profile (43) of the drive shaft (7) and the inner wall of the Hollow cylinder is reached via rollers or rollers (25) in the bearing element (23) are added symmetrically to the outer profile of the drive shaft (7) and on the Roll off the outer profile (43) of the drive shaft.
  • the axes of rotation of the rolls or rollers are aligned perpendicular to the axis of rotation of the drive shaft (7).
  • a Ball bearing instead of the roller bearing of the drive shaft (7) in the hollow cylinder (49), a Ball bearing, as shown in Figure 4, may be provided.
  • too Drive axis a non-rotationally symmetrical at least in a region corresponding to the bearing Outer profile, especially a polygonal profile
  • polishing For polishing, the polishing head, whose diameter is smaller than the diameter of the surface to be polished, in one Swiveling movement in the radial direction moves over the optical surface (41) to be polished. Both the workpiece (39) and the polishing plate are almost the same Speed driven in the same direction.
  • the polishing plate over the Polishing optical surface (41) can be provided that the speed of the polishing plate or the speed of the workpiece, in particular depending on the radial position of the polishing plate. This speed change has a positive impact on you constant polishing removal.
  • the pressure fluctuations are very small held so that the polishing plate with constant force on the optical surface to be polished rests.
  • the pressure control valve also helps to compensate for pressure fluctuations.
  • the arrangement described in connection with a polishing machine according to the prior art technology are in particular non-rotationally symmetrical optical surfaces (41) polishable, whereby the polishing removal is constant over the entire optical surface.
  • the polishing surface of the polishing plate (3) rests as far as possible on the optical surface (41) to be polished. This will ensured in particular by the fact that the non-rotatable articulated connection between the polishing plate and the drive shaft (7) the polishing plate around one on the central axis (2) of the polishing head can be tilted in any direction and the Alignment of the polishing plate as a result of the surface contour of the surface to be polished (41) can follow.

Abstract

L'invention concerne une tête de polissage pour des polisseuses, notamment pour polir des surfaces optiques. Cette tête de polissage comprend un plateau de polissage raccordé à un arbre d'entraînement pouvant être entraîné en rotation. Selon l'invention, le plateau de polissage (3) est relié à l'arbre d'entraînement (7) de manière articulée et de façon à être solidaire en rotation de ce dernier, par exemple au moyen d'une articulation à rotule à six pans. Le plateau de polissage peut, grâce à ce raccordement articulé, suivre par rotation la surface (41) de la pièce à usiner (39) de sorte que la garniture de polissage (5) repose en permanence sur une zone maximale de la surface (41).

Claims (20)

  1. Tête de polissage, notamment pour le polissage de surfaces optiques, comprenant un polissoir qui est relié à un arbre d'entraínement pouvant être entraíné en rotation, et le polissoir (3) étant relié de manière articulée et fixe en rotation à l'arbre d'entraínement (7), caractérisée en ce qu'il est prévu une chambre de compression (29), un mouvement translatoire du polissoir (3) le long d'un axe central (2) de la tête de polissage résultant d'une sollicitation par pression de la chambre de compression (29).
  2. Tête de polissage selon la revendication 1, caractérisée en ce qu'un mouvement de rotation de l'arbre d'entraínement (7) est transmis au polissoir (3) au moyen d'une correspondance géométrique.
  3. Tête de polissage selon la revendication 1 ou 2, caractérisée en ce que le polissoir (3) est installé sur l'arbre d'entraínement (7) de manière à pouvoir basculer autour d'un point se trouvant sur l'axe central (2).
  4. Tête de polissage selon l'une quelconque des revendications précédentes, caractérisée en ce que la correspondance géométrique pour la transmission du mouvement de rotation de l'arbre d'entraínement (7) au polissoir (3) est établie dans la jonction articulée.
  5. Tête de polissage selon la revendication 4, caractérisée en ce qu'il est prévu comme jonction articulée une articulation à empreinte hémisphérique.
  6. Tête de polissage selon au moins l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu un moyen d'enclenchement (15) pour sécuriser la jonction articulée du polissoir (3) et de l'arbre d'entraínement (7).
  7. Tête de polissage selon au moins l'une quelconque des revendications précédentes, caractérisée en ce que la chambre de compression (29) comporte un cylindre de chambre de compression (31) dans lequel est disposé un piston (33) mobile en translation.
  8. Tête de polissage selon la revendication 7, caractérisée en ce que le piston (33) est en liaison fonctionnelle avec l'arbre d'entraínement (7).
  9. Tête de polissage selon au moins l'une quelconque des revendications précédentes, caractérisée en ce que l'arbre d'entraínement (7) est installé de manière fixe en rotation et déplaçable en translation le long de l'axe central (2) de la tête de polissage dans un cylindre creux entraíné (49).
  10. Tête de polissage selon au moins l'une quelconque des revendications précédentes, caractérisée en ce que l'arbre d'entraínement (7) est installé de manière fixe en rotation et déplaçable en translation le long d'un axe central (2) de la tête de polissage et est relié de manière fixe en rotation à un piston entraíné en rotation.
  11. Tête de polissage selon au moins l'une quelconque des revendications précédentes, caractérisée en ce que l'arbre d'entraínement (7) présente, au moins dans une zone partielle, un profil extérieur non symétrique en rotation (43).
  12. Tête de polissage selon au moins l'une quelconque des revendications précédentes, caractérisée en ce que le profil extérieur (43) est réalisé sous la forme d'un profil à plusieurs arêtes.
  13. Tête de polissage selon au moins l'une quelconque des revendications précédentes, caractérisée en ce que le profil extérieur (43) est en liaison fixe en rotation avec le cylindre creux par l'intermédiaire d'un palier à roulements (23, 25).
  14. Tête de polissage selon au moins l'une quelconque des revendications précédentes, caractérisée en ce que le profil extérieur (43) présente des rainures longitudinales (51) dans lesquelles sont disposées des billes (53), par l'intermédiaire desquelles l'arbre d'entraínement (7) est relié au cylindre creux (49) qui est pourvu sur sa face interne de rainures longitudinales (51) réalisées en sens inverse.
  15. Polisseuse comportant une tête de polissage selon au moins l'une quelconque des revendications précédentes.
  16. Procédé de polissage d'une surface à forme libre non symétrique à un point avec une polisseuse selon la revendication 15, le polissoir (3), qui est entraíné en rotation dans le même sens de rotation, étant entraíné comme la surface optique à polir.
  17. Procédé selon la revendication 16, caractérisé en ce que le corps à usiner (39) est entraíné avec approximativement la même fréquence de rotation que le polissoir (3).
  18. Procédé selon la revendication 16, caractérisé en ce que la molette tournante (3) exécute un mouvement radial par rapport au corps à usiner (39).
  19. Procédé selon la revendication 18, caractérisé en ce que la fréquence de rotation de la molette tournante (3) ou de la surface à polir (41) change en fonction de la position radiale de la molette tournante (3).
  20. Procédé selon au moins l'une quelconque des revendications 16 à 19, caractérisé en ce que la pression dans la chambre (29) est régulée en fonction du contour surfacique de la surface optique (41) de manière à ce que la molette tournante reposant sur la surface optique (41) exerce sur celle-ci une pression de polissage constante prédéfinie.
EP01909601A 2000-02-03 2001-01-11 Tete de polissage pour une polisseuse Expired - Lifetime EP1251997B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03025546A EP1386694B2 (fr) 2000-02-03 2001-01-11 Procédé et machine de polissage

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10004455 2000-02-03
DE10004455 2000-02-03
PCT/EP2001/000253 WO2001056740A1 (fr) 2000-02-03 2001-01-11 Tete de polissage pour une polisseuse

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP03025546A Division EP1386694B2 (fr) 2000-02-03 2001-01-11 Procédé et machine de polissage
EP03025546.7 Division-Into 2003-11-08

Publications (3)

Publication Number Publication Date
EP1251997A1 EP1251997A1 (fr) 2002-10-30
EP1251997B1 true EP1251997B1 (fr) 2004-04-14
EP1251997B2 EP1251997B2 (fr) 2011-06-08

Family

ID=7629520

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03025546A Expired - Lifetime EP1386694B2 (fr) 2000-02-03 2001-01-11 Procédé et machine de polissage
EP01909601A Expired - Lifetime EP1251997B2 (fr) 2000-02-03 2001-01-11 Tete de polissage pour une polisseuse

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP03025546A Expired - Lifetime EP1386694B2 (fr) 2000-02-03 2001-01-11 Procédé et machine de polissage

Country Status (7)

Country Link
US (3) US20030045211A1 (fr)
EP (2) EP1386694B2 (fr)
JP (1) JP4945771B2 (fr)
AU (1) AU2001237285A1 (fr)
DE (3) DE10100860A1 (fr)
TW (1) TW558477B (fr)
WO (1) WO2001056740A1 (fr)

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WO2001056740A1 (fr) 2000-02-03 2001-08-09 Carl Zeiss Tete de polissage pour une polisseuse
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DE102011014230A1 (de) * 2011-03-17 2012-09-20 Satisloh Ag Vorrichtung zur Feinbearbeitung von optisch wirksamen Flächen an insbesondere Brillengläsern
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DE102012014399A1 (de) 2012-07-20 2014-05-15 Carl Zeiss Vision International Gmbh Vorrichtung zum Ermitteln und Ausgeben eines für einen Brillenträger geeigneten Brillenlinsentyp
DE102012216724A1 (de) 2012-09-19 2014-03-20 Carl Zeiss Vision International Gmbh Verfahren und Vorrichtung zur Polierbearbeitung von Brillenlinsen und Gießformen für die Brillenlinsenherstellung sowie entsprechendes Verfahren zur Herstellung von Brillenlinsen und Gießformen für die Brillenlinsenherstellung
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CN103302585A (zh) * 2013-06-25 2013-09-18 濮阳市亚利机械制造有限公司 一种用于研磨空气炮炮口的研磨机
DE102014206424A1 (de) 2014-04-03 2015-10-08 Carl Zeiss Vision International Gmbh Polierwerkzeug sowie Vorrichtung und Verfahren zur formfehleroptimierten Polierbearbeitung von Brillenlinsenoberflächen und Gießformschalen zur Brillenlinsenherstellung
DE102016004328A1 (de) * 2016-04-13 2017-10-19 Satisloh Ag Werkzeugspindel für eine Vorrichtung zur Feinbearbeitung von optisch wirksamen Flächen an Werkstücken
DE102016006741A1 (de) * 2016-06-06 2017-12-07 Schneider Gmbh & Co. Kg Werkzeug, Vorrichtung und Verfahren zum Polieren von Linsen
CN106002521A (zh) * 2016-07-19 2016-10-12 苏州誉衡昌精密机械有限公司 一种自动抛光轮机构
DE102017102094B4 (de) 2017-02-02 2019-07-11 Steffen Nitschke Werkzeugmodul zur Feinbearbeitung
CN107186572B (zh) * 2017-06-09 2023-04-11 中国科学院西安光学精密机械研究所 一种非球面光学元件抛光装置
CN107322411B (zh) * 2017-06-09 2023-04-11 中国科学院西安光学精密机械研究所 一种大口径非球面光学元件抛光装置
JP2019000957A (ja) * 2017-06-16 2019-01-10 株式会社春近精密 レンズ研磨装置およびレンズ研磨方法
CN109514384A (zh) * 2018-11-07 2019-03-26 西安工业大学 非球面光学元件的抛光方法和装置
CN109202709A (zh) * 2018-11-21 2019-01-15 中国科学院光电技术研究所 一种气压控制恒定压力自适应抛光磨头
EP3663039A1 (fr) 2018-12-03 2020-06-10 Carl Zeiss Vision International GmbH Machine de polissage destinée au traitement d'une surface optique d'un verre de lunettes, dispositif de réception destiné à être utilisé dans la machine de polissage, procédé de traitement polissage des surfaces optiques des verres de lunettes et procédé de fabrication d'un verre de lunettes
JP7354879B2 (ja) * 2020-03-05 2023-10-03 トヨタ自動車株式会社 自動水研装置
CN111906672B (zh) * 2020-07-21 2021-05-07 温州大学 一种基于气压砂轮的自动化抛光装置
CN113618542A (zh) * 2021-07-13 2021-11-09 中国兵器科学研究院宁波分院 一种抛光设备

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US8011996B2 (en) 2011-09-06
DE50114907D1 (de) 2009-07-02
JP2003525756A (ja) 2003-09-02
WO2001056740A1 (fr) 2001-08-09
US20050037695A1 (en) 2005-02-17
TW558477B (en) 2003-10-21
US20030045211A1 (en) 2003-03-06
AU2001237285A1 (en) 2001-08-14
EP1386694B2 (fr) 2013-01-09
JP4945771B2 (ja) 2012-06-06
EP1251997B2 (fr) 2011-06-08
EP1386694B1 (fr) 2009-05-20
DE10100860A1 (de) 2001-08-23
US7588480B2 (en) 2009-09-15
EP1386694A1 (fr) 2004-02-04
EP1251997A1 (fr) 2002-10-30
DE50101982D1 (de) 2004-05-19
US20080020691A1 (en) 2008-01-24

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