EP1251997B2 - Polishing head for a polishing machine - Google Patents

Polishing head for a polishing machine Download PDF

Info

Publication number
EP1251997B2
EP1251997B2 EP01909601A EP01909601A EP1251997B2 EP 1251997 B2 EP1251997 B2 EP 1251997B2 EP 01909601 A EP01909601 A EP 01909601A EP 01909601 A EP01909601 A EP 01909601A EP 1251997 B2 EP1251997 B2 EP 1251997B2
Authority
EP
European Patent Office
Prior art keywords
polishing
drive shaft
polishing head
disc
head according
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
Other languages
German (de)
French (fr)
Other versions
EP1251997A1 (en
EP1251997B1 (en
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 Vision International GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7629520&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1251997(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Carl Zeiss Vision International GmbH filed Critical Carl Zeiss Vision International GmbH
Priority to EP03025546A priority Critical patent/EP1386694B2/en
Publication of EP1251997A1 publication Critical patent/EP1251997A1/en
Application granted granted Critical
Publication of EP1251997B1 publication Critical patent/EP1251997B1/en
Publication of EP1251997B2 publication Critical patent/EP1251997B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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. From the EP 0 567 894 A1 , from which the invention proceeds, a device for guiding a tool when polishing toric or spherical surfaces is known. The quill of this device is translationally movable by a coaxially arranged Druckstoffzylinder - and piston assembly.
  • a polishing machine for polishing spherical lens surfaces has an upper slide movable in an x-direction.
  • a tool spindle which is rotatably mounted about a vertical axis connected.
  • the tool spindle serves to receive a dressing tool.
  • workpiece spindle is provided for receiving the workpiece or the lens connected to a further carriage.
  • the workpiece spindle and the workpiece spindle with the dressing tool are arranged at a fixed distance from each other. The carriage carrying these two spindles can be moved in the z-direction.
  • a polishing machine and a method for polishing optical surfaces are known.
  • the polishing machine has a polishing head provided with an elastic membrane. By pressurizing the membrane, the application of force to the surface to be polished is regulated.
  • a disadvantage of this polishing machine that the size of the surface of the polishing head or the membrane resting on the surface to be polished depends on the pressurization.
  • the polishing head with the elastic membrane is biased by an associated spring in the direction of the surface to be polished.
  • hydraulic cylinders are provided for the provision of a tilting mobility of the elastic membrane around a point lying on the axis of rotation in the region of the flexible membrane.
  • the application of force to the surface to be polished is detected by associated sensors, rotating strips and solenoit.
  • the polishing of the optical surface in dependence on the rotational speed of the polishing head and the force acting on the surface to be polished contact pressure is controlled by pressurization.
  • a gimbal stored optics grinding or polishing tool known.
  • an alignment member is provided, which consists of elastic material. This alignment member exerts no tool lifting the tool off the spindle. It can be readily formed so that even a force the tool to the all-round joint, z. B. a ball joint, zoom, but the alignment force is so weak that the adjustment of the tool on the workpiece under the effect of the working pressure is possible.
  • the use of such a tool allows the automatic loading of an optical grinding machine, since the workpiece rigidly and axially immovable remains on the spindle and without lateral tilting a well-defined position relative to the feeder occupies.
  • a polishing machine with the polishing head in claim 11 and a method with such a polishing head in claim 12 beausprucht.
  • the polishing plate rotatably articulated to the drive shaft By the measure to connect the polishing plate rotatably articulated to the drive shaft, it is possible that the polishing plate following the surface contour rests on the surface to be machined. Due to the articulated connection of the polishing plate can perform tilting movements, so that it rests with a maximum polishing surface on the surface to be polished.
  • the non-rotatable articulated connection to connect the polishing plate via a Kugelimbusgelenk with the drive shaft.
  • this Kugelimbusgelenk it is possible to arrange the fulcrum by which the polishing plate can be pivoted in any direction as close to the surface of the polishing plate to be polished.
  • the close arrangement of the articulated connection to the polishing surface of the polishing plate has the advantage that the polishing plate can follow the surface contours responsive.
  • the articulated connection one or more locking element for securing the connection of the drive shaft and polishing head. If a ball-and-socket joint is provided as an articulated connection, it is ensured by means of the latching element that the ball-and-cage head can not slip out of the associated recess. As a result, the polishing plate can be removed without problems from the surface to be polished. By ensured by the locking element solvability of the compound also different polishing plates can be easily replaced with each other.
  • the polishing head is associated with a pressure chamber wherein a pressurization of the pressure chamber results in a translational movement of the polishing plate along a center axis of the polishing head. If the polishing plate is located on a surface to be polished, the result of pressurization is an increased polishing pressure.
  • one of the pressure chamber associated piston with the drive shaft is in operative connection, so that a pressurization of the pressure chamber is transmitted via the drive shaft to the polishing plate.
  • the drive shaft is driven by means of a coaxially arranged hollow cylinder, in which the drive shaft is rotatably mounted, via this hollow cylinder.
  • a positive connection has proved to be advantageous.
  • the drive shaft in the hollow cylinder is mounted by means of bearing elements, namely a rolling bearing or a ball bearing translatorily easily movable.
  • the in FIG. 1 shown polishing head (1) has a polishing plate (3) with a polishing pad (5).
  • the polishing pad (5) rests on a surface (41) of a workpiece (39) to be polished.
  • the polishing plate 3 is received via the articulated connection to a drive shaft (7).
  • a Kugelimbusgelenk is provided for this non-rotatable articulated connection.
  • the drive shaft (7) is on the side facing the polishing plate end provided with a Kugelimbuskopf (19) which engages in a in the polishing plate (3) formed recess (13).
  • a locking element for example, a spring element or spring pin on the polishing plate, which protrudes into a recess on the ball head in, may be provided.
  • the Kugelimbuskopf (19) is also possible to form the Kugelimbuskopf (19) on the polishing plate; In this case, then in the drive shaft (7) to provide a recess for rotationally secure articulated receiving the Kugelimbuskopfes.
  • the drive shaft (7) is translationally displaceable via bearing element (23) and non-rotatably mounted in a hollow cylinder (49).
  • the hollow cylinder (49) is rotationally driven via a drive of the polishing machine, not shown, wherein the rotational movement due to the rotationally fixed connection by the bearing element (23) is completely transferred to the drive shaft (7) for the polishing head.
  • a hydraulic or pneumatic system On the side remote from the polishing head of the drive shaft (7) in the hollow cylinder (49) is a hydraulic or pneumatic system, which serves to load the polishing head with the required polishing pressure provided.
  • This has a pressure chamber cylinder (31) with a translationally displaceable recorded therein piston (33).
  • piston (33) To decouple the piston (33) from the rotational movement of the drive shaft (7) and the hollow cylinder pivot bearing between the pressure chamber cylinder (31) and the hollow cylinder (49) and between the piston (33) driven Pleul (32) and the drive shaft (7 ) be provided.
  • the pressure chamber (29) formed in the pressure chamber cylinder (31) is assigned a pressure supply (35) with a pressure control valve (37) and a pressure reservoir (36).
  • the drive shaft (7) has for this purpose a non-rotationally symmetrical outer profile (43), preferably a polygonal profile.
  • the positive engagement between the outer profile (43) of the drive shaft (7) and the inner wall of the hollow cylinder is achieved by rollers or rollers (25) which are received in the bearing element (23) symmetrically to the outer profile of the drive shaft (7) and on the outer profile ( 43) of the drive shaft.
  • the axes of rotation of the rollers or rollers are aligned perpendicular to the axis of rotation of the drive shaft (7).
  • the rolling bearing of the drive shaft (7) in the hollow cylinder (49) can also be a ball bearing, as in FIG. 4 represented, be provided.
  • the drive axle has a non-rotationally symmetrical external profile, in particular a polygonal profile, at least in a region corresponding to the bearing
  • the polishing head whose diameter is smaller than the diameter of the surface to be polished, is moved in a pivoting movement in the radial direction over the optical surface (41) to be polished. Both the workpiece (39) and the polishing plate are driven at almost the same speed in the same direction.
  • the rotational speeds of the polishing plate or the rotational speed of the workpiece in particular in dependence on the radial position of the polishing plate to change. This speed change has a positive influence on a constant polishing removal.
  • the pressure fluctuations are kept very small, so that the polishing plate rests with constant force on the optical surface to be polished.
  • the pressure control valve also contributes to the compensation of pressure fluctuations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention relates to a polishing head for a polishing machine, especially for polishing optical surfaces. The inventive polishing head comprises a polishing plate that is linked with a rotation-driven primary shaft. Said polishing plate (7) is hinged on the primary shaft (7) so as not to rotate. The hinged, rotationally fixed connection can be established by means of a hexagonal ball joint. Said hinged connection allows the polishing plate to rotate and simultaneously follow the surface (41) of the work piece (39) to be polished so that the polishing lining (5) always rests on the largest area possible of the surface (41).

Description

Die Erfindung betrifft einen Polierkopf für eine Poliermaschine. Aus der EP 0 567 894 A1 , von der die Erfindung ausgeht, ist eine Vorrichtung zur Führung eines Werkzeugs beim Polieren torischer oder sphärischer Flächen bekannt. Die Pinole dieser Vorrichtung ist durch eine koaxial angeordnete Druckmittelzylinder - und Kolbenanordnung translatorisch bewegbar.The invention relates to a polishing head for a polishing machine. From the EP 0 567 894 A1 , from which the invention proceeds, a device for guiding a tool when polishing toric or spherical surfaces is known. The quill of this device is translationally movable by a coaxially arranged Druckmittelzylinder - and piston assembly.

Aus der EP 727 280 B1 ist eine Poliermaschine zum Polieren sphärischer Linsenoberflächen bekannt. Diese Poliermaschine weist einen oberen in einer x-Richtung verfahrbaren Schlitten auf. Mit diesem Schlitten ist eine Werkzeugspindel, die um eine vertikale Achse drehbar gelagert ist, verbunden. Die Werkzeugspindel dient dabei zur Aufnahme eines Abrichtwerkzeuges. Zur Aufnahme des Werkstückes bzw. der Linse ist eine mit einem weiteren Schlitten verbundene Werkstückspindel vorgesehen. Die Werkstückspindel und die Werkstückspindel mit dem Abrichtwerkzeug sind in einem festen Abstand zueinander angeordnet. Der diese beiden Spindeln tragende Schlitten ist in z-Richtung verfahrbar.From the EP 727 280 B1 For example, a polishing machine for polishing spherical lens surfaces is known. This polishing machine has an upper slide movable in an x-direction. With this carriage, a tool spindle, which is rotatably mounted about a vertical axis connected. The tool spindle serves to receive a dressing tool. For receiving the workpiece or the lens connected to a further carriage workpiece spindle is provided. The workpiece spindle and the workpiece spindle with the dressing tool are arranged at a fixed distance from each other. The carriage carrying these two spindles can be moved in the z-direction.

Aus der WO 97/00155 ist eine Poliermaschine und ein Verfahren zum Polieren von optischen Flächen bekannt. Die Poliermaschine weist eine Polierkopf auf, der mit einem elastische Membran versehen ist. Durch Druckbeaufschlagung der Membran wird die Kraftbeaufschlagung der zu polierenden Fläche geregelt. Nachteilig ist bei dieser Poliermaschine, dass die Größe der auf der zu polierenden Fläche aufliegende Fläche des Polierkopfes bzw. der Membran von der Druckbeaufschlagung abhängt. Der Polierkopf mit der elastischem Membran wird durch eine zugeordnete Feder in Richtung der zu polierenden Fläche vorgespannt. Für die Bereitstellung einer Kippbeweglichkeit der elastischen Membran, um eine auf der Drehachse im Bereich der flexiblen Membran liegenden Punkt, sind Hydraulikzylinder vorgesehen. Die Kraftbeaufschlagung der zu polierenden Fläche wird durch zugeordnete Sensoren, Drehstreifen und Solenoit, detektiert.From the WO 97/00155 For example, a polishing machine and a method for polishing optical surfaces are known. The polishing machine has a polishing head provided with an elastic membrane. By pressurizing the membrane, the application of force to the surface to be polished is regulated. A disadvantage of this polishing machine, that the size of the surface of the polishing head or the membrane resting on the surface to be polished depends on the pressurization. The polishing head with the elastic membrane is biased by an associated spring in the direction of the surface to be polished. For the provision of a tilting mobility of the elastic membrane around a point lying on the axis of rotation in the region of the flexible membrane, hydraulic cylinders are provided. The application of force to the surface to be polished is detected by associated sensors, rotating strips and solenoit.

In dem aus dieser Schrift bekannten Verfahren wird das Polieren der optischen Oberfläche in Abhängigkeit von der Drehzahl des polierenden Kopfes und der auf die zu polierende Oberfläche wirkenden Anpresskraft durch Druckbeaufschlagung gesteuert.In the method known from this document, the polishing of the optical surface in dependence on the rotational speed of the polishing head and the force acting on the surface to be polished contact pressure is controlled by pressurization.

Aus der DE 1 239 211 B ist ein kardanisch gelagertes Optik- Schleif- oder Polierwerkzeug bekannt. Zur Ausrichtung des Poliertellers ist ein Ausrichtglied vorgesehen, das aus elastischem Werkstoff besteht. Dieses Ausrichtglied übt keine das Werkzeug von der Spindel abhebende Kraft aus. Es kann ohne weiteres so ausgebildet werden, dass sogar eine Kraft das Werkzeug an das allseitig bewegliche Gelenk, z. B. ein Kugelgelenk, heranzieht, wobei jedoch die Ausrichtkraft so schwach ist, dass die Einstellung des Werkzeuges auf das Werkstück unter der Wirkung des Arbeitsdruckes möglich ist. Die Verwendung eines solchen Werkzeuges gestattet das automatische Beschicken einer Optik- Schleifmaschine, da das Werkstück starr und axial unbeweglich auf der Spindel verbleibt und ohne seitliches Wegkippen eine genau definierte Lage relativ zu der Beschickungsvorrichtung, einnimmt.From the DE 1 239 211 B is a gimbal stored optics grinding or polishing tool known. For alignment of the polishing plate an alignment member is provided, which consists of elastic material. This alignment member exerts no tool lifting the tool off the spindle. It can be readily formed so that even a force the tool to the all-round joint, z. B. a ball joint, zoom, but the alignment force is so weak that the adjustment of the tool on the workpiece under the effect of the working pressure is possible. The use of such a tool allows the automatic loading of an optical grinding machine, since the workpiece rigidly and axially immovable remains on the spindle and without lateral tilting a well-defined position relative to the feeder occupies.

Es ist Aufgabe der Erfindung einen Polierkopf zum Polieren einer Freiformfläche bereitzustellen, dessen Antriebswelle derart leichtgängig translatorisch bewegbar ist, dass die eingeleitete translatorische Bewegung bzw. Kraftbeaufschlagung nahezu vollständig auf den Polierteller übertragen wird.It is an object of the invention to provide a polishing head for polishing a freeform surface, the drive shaft is so easily translationally movable that the initiated translational movement or force application is almost completely transferred to the polishing plate.

Die Aufgabe der Erfindung wird durch die im Patentanspruch 1 gegebenen Merkmale gelöst.The object of the invention is achieved by the given in claim 1 features.

Ferner wird eine Poliermaschine mit dem Polierkopf in Anspruch 11 sowie ein Verfahren mit einem derartigen Polierkopf in Anspruch 12 beausprucht.Furthermore, a polishing machine with the polishing head in claim 11 and a method with such a polishing head in claim 12 beausprucht.

Durch die Maßnahme den Polierteller drehfest gelenkig mit der Antriebswelle zu verbinden ist es möglich, daß der Polierteller der Oberflächenkontur folgend auf der zu bearbeitenden Oberfläche aufliegt. Durch die gelenkige Verbindung kann der Polierteller Kippbewegungen ausführen, so daß er mit einer maximalen Polierfläche auf der zu polierenden Oberfläche aufliegt.By the measure to connect the polishing plate rotatably articulated to the drive shaft, it is possible that the polishing plate following the surface contour rests on the surface to be machined. Due to the articulated connection of the polishing plate can perform tilting movements, so that it rests with a maximum polishing surface on the surface to be polished.

Zur Übertragung der Drehbewegung der Antriebswelle auf den Polierteller hat es sich als vorteilhaft herausgestellt, den Polierteller mit der Antriebswelle mittels Formschluß zu verbinden, so daß die Drehbewegung der Antriebswelle aufgrund des Formschlusses auf den Polierteller übertragen wird.To transmit the rotational movement of the drive shaft to the polishing plate, it has been found to be advantageous to connect the polishing plate with the drive shaft by means of positive engagement, so that the rotational movement of the drive shaft is transmitted due to the positive connection to the polishing plate.

Es hat sich als vorteilhaft herausgestellt für die drehfeste gelenkige Verbindung den Polierteller über ein Kugelimbusgelenk mit der Antriebswelle zu verbinden. Durch dieses Kugelimbusgelenk ist es möglich, den Drehpunkt, um den der Polierteller in beliebige Richtungen geschwenkt werden kann, möglichst nah an der zu polierenden Oberfläche des Poliertellers anzuordnen. Die nahe Anordnung der gelenkigen Verbindung zur polierenden Oberfläche des Poliertellers hat den Vorteil, daß der Polierteller den Oberflächenkonturen reaktionsschnell folgen kann.It has proven to be advantageous for the non-rotatable articulated connection to connect the polishing plate via a Kugelimbusgelenk with the drive shaft. Through this Kugelimbusgelenk it is possible to arrange the fulcrum by which the polishing plate can be pivoted in any direction as close to the surface of the polishing plate to be polished. The close arrangement of the articulated connection to the polishing surface of the polishing plate has the advantage that the polishing plate can follow the surface contours responsive.

Es hat sich als vorteilhaft herausgestellt der gelenkigen Verbindung ein oder mehrere Rastelement zur Sicherung der Verbindung von Antriebswelle und Polierkopf zuzuordnen. Ist als gelenkige Verbindung ein Kugelimbusgelenk vorgesehen, so wird mittels des Rastelementes sichergestellt, daß der Kugelimbuskopf aus der zugeordneten Ausnehmung nicht herausrutschen kann. Dadurch kann der Polierteller ohne Probleme von der zu polierenden Fläche entfernt werden. Durch die durch das Rastelement gewährleistete Lösbarkeit der Verbindung können außerdem verschiedene Polierteller leicht gegeneinander ausgetauscht werden.It has proven to be advantageous to assign the articulated connection one or more locking element for securing the connection of the drive shaft and polishing head. If a ball-and-socket joint is provided as an articulated connection, it is ensured by means of the latching element that the ball-and-cage head can not slip out of the associated recess. As a result, the polishing plate can be removed without problems from the surface to be polished. By ensured by the locking element solvability of the compound also different polishing plates can be easily replaced with each other.

Dem Polierkopf wird eine Druckkammer zugeordnet wobei aus einer Druckbeaufschlagung der Druckkammer eine translatorische Bewegung des Poliertellers entlang einer Mittenachse des Polierkopfes resultiert. Liegt der Polierteller auf einer zu polierenden Oberfläche auf, so resultiert aus einer Druckbeaufschlagung ein erhöhter Polierdruck.The polishing head is associated with a pressure chamber wherein a pressurization of the pressure chamber results in a translational movement of the polishing plate along a center axis of the polishing head. If the polishing plate is located on a surface to be polished, the result of pressurization is an increased polishing pressure.

Es hat sich als vorteilhaft herausgestellt, wenn ein der Druckkammer zugeordneter Kolben mit der Antriebswelle in Wirkverbindung steht, so daß eine Druckbeaufschlagung der Druckkammer über die Antriebswelle auf den Polierteller übertragen wird.It has proven to be advantageous if one of the pressure chamber associated piston with the drive shaft is in operative connection, so that a pressurization of the pressure chamber is transmitted via the drive shaft to the polishing plate.

Die Antriebswelle wird mittels eines koaxial angeordneten Hohlzylinders, in dem die Antriebswelle drehfest gelagert ist, über diesen Hohlzylinder angetrieben. Für die Übertragung der Drehbewegung hat sich eine formschlüssige Verbindung als vorteilhaft erwiesen.The drive shaft is driven by means of a coaxially arranged hollow cylinder, in which the drive shaft is rotatably mounted, via this hollow cylinder. For the transmission of the rotational movement, a positive connection has proved to be advantageous.

Die Antriebswelle in dem Hohlzylinder wird mittels Lagerelementen, nämlich einer Wälzlagerung oder einer Kugellagerung translatorisch leicht bewegbar gelagert. Durch diese Lagerung wird gewährleistet, daß bei Druckbeaufschlagung der Druckkammer sich die Antriebswelle in dem Hohlzylinder leichtgängig translatorisch bewegen kann und somit die eingeleitete translatorische Bewegung bzw. Kraftbeaufschlagung nahezu vollständig auf den Polierteller übertragen wird.The drive shaft in the hollow cylinder is mounted by means of bearing elements, namely a rolling bearing or a ball bearing translatorily easily movable. By this storage ensures that when pressure is applied to the pressure chamber, the drive shaft in the hollow cylinder can move smoothly translational and thus the initiated translational movement or force application is almost completely transferred to the polishing plate.

Weitere vorteilhafte Maßnahmen sind in weiteren abhängigen Ansprüchen beschrieben.Further advantageous measures are described in further dependent claims.

Anhand eines Ausführungsbeispieles wird die Erfindung im folgenden näher beschrieben.Reference to an exemplary embodiment, the invention will be described in more detail below.

Es zeigt:

Figur 1
eine schematische Skizze des Polierkopfes in einem dessen Mittenachse enthaltenen Schnittes;
Figur 2
einen Schnitt entlang der Ebene II - II in Figur 1;
Figur 3
einen Schnitt entlang der Ebene III - III in Figur 1; und
Figur 4
Schnitt entlang der Ebene III - III bei einem alternativen Ausführungsbeispiel.
It shows:
FIG. 1
a schematic sketch of the polishing head in a section containing its center axis;
FIG. 2
a section along the plane II - II in FIG. 1 ;
FIG. 3
a section along the plane III - III in FIG. 1 ; and
FIG. 4
Section along the plane III-III in an alternative embodiment.

Der in Figur 1 dargestellte Polierkopf (1) weist einen Polierteller (3) mit einem Polierbelag (5) auf. Der Polierbelag (5) liegt auf einer zu polierenden Oberfläche (41) eines Werkstückes (39) auf.The in FIG. 1 shown polishing head (1) has a polishing plate (3) with a polishing pad (5). The polishing pad (5) rests on a surface (41) of a workpiece (39) to be polished.

Der Polierteller 3 ist über die gelenkige Verbindung an einer Antriebswelle (7) aufgenommen. Im dargestellten Ausführungsbeispiel ist für diese drehfeste gelenkige Verbindung ein Kugelimbusgelenk vorgesehen. Die Antriebswelle (7) ist dazu auf der dem Polierteller zugewandten Seite endseitig mit einem Kugelimbuskopf (19) versehen, der in eine im Polierteller (3) ausgebildete Ausnehmung (13) eingreift.The polishing plate 3 is received via the articulated connection to a drive shaft (7). In the illustrated embodiment, a Kugelimbusgelenk is provided for this non-rotatable articulated connection. The drive shaft (7) is on the side facing the polishing plate end provided with a Kugelimbuskopf (19) which engages in a in the polishing plate (3) formed recess (13).

Zur Sicherung ist die Verbindung zwischen dem Kugelimbuskopf (19) und dem Polierteller (3) mittels eines Rastelementes (15) gesichert ist. Als Rastelement können beispielsweise ein Federelement bzw. Federstift am Polierteller, der in eine Ausnehmung am Kugelimbuskopf hinein ragt, vorgesehen sein.To secure the connection between the ball cam head (19) and the polishing plate (3) by means of a locking element (15) is secured. As a latching element, for example, a spring element or spring pin on the polishing plate, which protrudes into a recess on the ball head in, may be provided.

Es ist auch möglich, den Kugelimbuskopf (19) an dem Polierteller auszubilden; in diesem Fall ist dann in der Antriebswelle (7) eine Ausnehmung zur drehsicheren gelenkigen Aufnahme des Kugelimbuskopfes vorzusehen. Allerdings ist in diesem Fall der Abstand zwischen der Gelenkstelle - also dem Punkt, um den eine Kippung des Poliertellers relativ zur starren Antriebswelle erfolgen kann - und der zu polierenden Fläche (41) größer.It is also possible to form the Kugelimbuskopf (19) on the polishing plate; In this case, then in the drive shaft (7) to provide a recess for rotationally secure articulated receiving the Kugelimbuskopfes. However, in this case, the distance between the hinge point - ie the point by which a tilting of the polishing plate relative to the rigid drive shaft can take place - and the surface to be polished (41) larger.

Die Antriebswelle (7) ist über Lagerelement (23) translatorisch verschiebbar und drehfest in einem Hohlzylinder (49) gelagert. Der Hohlzylinder (49) wird rotatorisch angetrieben über einen nicht dargestellten Antrieb der Poliermaschine, wobei die Drehbewegung aufgrund der drehfesten Verbindung durch das Lagerelement (23) vollständig auf die Antriebswelle (7) für den Polierkopf übertragen wird.The drive shaft (7) is translationally displaceable via bearing element (23) and non-rotatably mounted in a hollow cylinder (49). The hollow cylinder (49) is rotationally driven via a drive of the polishing machine, not shown, wherein the rotational movement due to the rotationally fixed connection by the bearing element (23) is completely transferred to the drive shaft (7) for the polishing head.

Auf der vom Polierkopf abgewandten Seite der Antriebswelle (7) ist in dem Hohlzylinder (49) ein Hydraulik- oder Pneumatiksystem, das zur Beaufschlagung des Polierkopfes mit dem erforderlichen Polierdruck dient, vorgesehen. Dieses weist einen Druckkammerzylinder (31) mit einem darin translatorisch verschiebar aufgenommenen Kolben (33) auf. Zur Entkoppelung des Kolbens (33) von der Drehbewegung der Antriebswelle (7) und des Hohlzylinders können Drehlager zwischen dem Druckkammerzylinder (31) und dem Hohlzylinder (49) sowie zwischen dem vom Kolben (33) angetriebenen Pleul (32) und der Antriebswelle (7) vorgesehen sein. Zur Druckbeaufschlagung des Kolbens (33) ist der im Druckkammerzylinder (31) gebildeten Druckkammer (29) eine Druckversorgung (35) mit einem Druckregelventil (37) und einem Druckreservoir (36) zugeordnet. Durch Druckbeaufschlagung der Druckkammer (29) wird eine entlang einer Mittenachse (2) des Polierkopfes (1) gerichteten Kraft auf den Kolben (33) eingeleitet. Aus dieser Kraft resultiert eine translatorische Bewegung des Poliertellers bzw. eine Erhöhung der wirkenden Polierkraft, sofern der Polierbelag (5)auf einer zu polierenden optischen Fläche (41) eines Werkstückes (39) aufliegt.On the side remote from the polishing head of the drive shaft (7) in the hollow cylinder (49) is a hydraulic or pneumatic system, which serves to load the polishing head with the required polishing pressure provided. This has a pressure chamber cylinder (31) with a translationally displaceable recorded therein piston (33). To decouple the piston (33) from the rotational movement of the drive shaft (7) and the hollow cylinder pivot bearing between the pressure chamber cylinder (31) and the hollow cylinder (49) and between the piston (33) driven Pleul (32) and the drive shaft (7 ) be provided. For pressurizing the piston (33), the pressure chamber (29) formed in the pressure chamber cylinder (31) is assigned a pressure supply (35) with a pressure control valve (37) and a pressure reservoir (36). By applying pressure to the pressure chamber (29), a force directed along a center axis (2) of the polishing head (1) is introduced to the piston (33). This force results in a translatory movement of the polishing plate or an increase in the effective polishing force, provided that the polishing pad (5) rests on an optical surface (41) of a workpiece (39) to be polished.

Die drehfeste translatorisch bewegbare Kopplung zwischen dem Hohlzylinder (49) und der Antriebswelle (7) erfolgt über ein Wälzlager (23). Die Antriebswelle (7) weist dazu ein nicht rotationssymmetrisches Außenprofil (43), vorzugsweise ein Mehrkantprofil auf. Der Formschluß zwischen dem Außenprofil (43) der Antriebswelle (7) und der Innenwand des Hohlzylinders wird über Rollen oder Walzen (25) erreicht, die in dem Lagerelement (23) symmetrisch zum Außenprofil der Antriebswelle (7) aufgenommen sind und an dem Außenprofil (43) der Antriebswelle abrollen. Die Drehachsen der Rollen oder Walzen sind dabei senkrecht zur Rotationachse der Antriebswelle (7) ausgerichtet.The rotationally fixed translationally movable coupling between the hollow cylinder (49) and the drive shaft (7) via a rolling bearing (23). The drive shaft (7) has for this purpose a non-rotationally symmetrical outer profile (43), preferably a polygonal profile. The positive engagement between the outer profile (43) of the drive shaft (7) and the inner wall of the hollow cylinder is achieved by rollers or rollers (25) which are received in the bearing element (23) symmetrically to the outer profile of the drive shaft (7) and on the outer profile ( 43) of the drive shaft. The axes of rotation of the rollers or rollers are aligned perpendicular to the axis of rotation of the drive shaft (7).

Anstelle der Wälzlagerung der Antriebswelle (7) in dem Hohlzylinder (49) kann auch eine Kugellagerung, wie in Figur 4 dargestellt, vorgesehen sein. Zur drehfesten translatorisch verschiebbaren Verbindung sind die Kugeln (53) in Längsnuten (51) des Hohlzylinders (49) und weiteren Längsnuten (55) der Antriebswelle (7) gelagert, wobei sich die Längsnuten parallel zur Rotationsachse der Antriebswelle (7) erstrecken. Auch in diesem Fall weist die Antriebsachse wenigstens in einem der Lagerung entsprechenden Bereich ein nichtrotationssysmmetrisches Außenprofil, insbesondere ein Mehrkantprofil aufInstead of the rolling bearing of the drive shaft (7) in the hollow cylinder (49) can also be a ball bearing, as in FIG. 4 represented, be provided. For rotationally fixed translationally displaceable connection, the balls (53) in longitudinal grooves (51) of the hollow cylinder (49) and further longitudinal grooves (55) of the drive shaft (7), wherein the longitudinal grooves extend parallel to the axis of rotation of the drive shaft (7). In this case as well, the drive axle has a non-rotationally symmetrical external profile, in particular a polygonal profile, at least in a region corresponding to the bearing

Im folgenden wird das Polierverfahren näher beschrieben. Zum Polieren wird der Polierkopf, dessen Durchmesser kleiner ist als der Durchmesser der zu polierenden Fläche, in einer Schwenkbewegung in radialer Richtung über die zu polierende optische Fläche (41) bewegt. Sowohl das Werkstück (39) als auch der Polierteller werden dabei mit nahezu gleicher Drehzahl in identischer Richtung angetrieben. Bei Bewegung des Poliertellers über die zu polierende optische Fläche (41) kann vorgesehen sein, daß die Drehzahlen des Poliertellers oder die Drehzahl des Werkstückes, insbesondere in Abhängigkeit von der radialen Position des Poliertellers, zu verändern. Diese Drehzahländerung hat einen positiven Einfluß auf einen konstanten Polierabtrag.In the following, the polishing method will be described in more detail. For polishing, the polishing head, whose diameter is smaller than the diameter of the surface to be polished, is moved in a pivoting movement in the radial direction over the optical surface (41) to be polished. Both the workpiece (39) and the polishing plate are driven at almost the same speed in the same direction. When moving the polishing plate on the optical surface to be polished (41) can be provided that the rotational speeds of the polishing plate or the rotational speed of the workpiece, in particular in dependence on the radial position of the polishing plate to change. This speed change has a positive influence on a constant polishing removal.

Durch die Wahl eines sehr großen Speichervolumens (36) im Verhältnis zum sich verändernden Volumen des Kolbens (31), werden die Druckschwankungen sehr klein gehalten, so daß der Polierteller mit konstanter Kraft auf der zu polierenden optischen Fläche aufliegt. Das Druckregelventil trägt auch noch zum Ausgleich von Druckschwankungen bei.By choosing a very large storage volume (36) in relation to the changing volume of the piston (31), the pressure fluctuations are kept very small, so that the polishing plate rests with constant force on the optical surface to be polished. The pressure control valve also contributes to the compensation of pressure fluctuations.

Durch die beschriebene Anordnung in Verbindung mit einer Poliermaschine nach dem Stand der Technik sind insbesondere nicht rotationssymmetrische optische Oberflächen (41) polierbar, wobei der Polierabtrag über die gesamte optische Fläche konstant ist. Für den gleichmäßigen Polierabtrag ist es erforderlich, daß der Polierbelag des Poliertellers (3) möglichst großflächig auf der zu polierenden optischen Fläche (41) aufliegt. Dies wird insbesondere dadurch gewährleistet, daß durch die drehfeste gelenkige Verbindung zwischen dem Polierteller und der Antriebswelle (7) der Polierteller um einen auf der Mittenachse (2) des Polierkopfes liegenden Punkt in beliebige Richtungen gekippt werden kann und die Ausrichtung des Poliertellers dadurch der Oberflächenkontur der zu polierenden Fläche (41) folgen kann.By the described arrangement in connection with a polishing machine according to the prior art in particular non-rotationally symmetrical optical surfaces (41) are polishable, wherein the polishing removal over the entire optical surface is constant. For the uniform polishing removal, it is necessary that the polishing pad of the polishing plate (3) rests as large as possible on the optical surface to be polished (41). This is ensured in particular by the fact that the polishing plate can be tilted about an on the center axis (2) of the polishing head point in any directions by the rotationally fixed articulated connection between the polishing plate and the drive shaft (7) and the orientation of the polishing plate thereby the surface contour of to be polished surface (41) can follow.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
Polierkopfpolishing head
22
Mittenachsemid-axis
33
Poliertellerpolishing plate
55
Polierbelag (∼ Belag)Polishing coating (~ coating)
77
Antriebswelledrive shaft
99
gelenkige Verbindungarticulated connection
1313
Ausnehmung im PoliertellerRecess in the polishing plate
1515
Rastelementlocking element
1919
Kugelimbuskopfball head
2020
Ausnehmungrecess
2323
Lagerelementebearing elements
2525
Walzen oder RollenRollers or rollers
2929
Druckkammerpressure chamber
3131
DruckkammerzylinderPressure chamber cylinder
3232
Pleuelpleuel
3333
Kolbenpiston
3535
Druckversorgungpressure supply
3636
Reservoirreservoir
3737
DruckregelventilPressure control valve
3939
Werkstückworkpiece
4141
Optische FlächeOptical surface
4343
Außenprofilouter profile
4949
Hohlzylinderhollow cylinder
5151
Längsnutenlongitudinal grooves
5353
Kugelnroll
5555
Längsnut in AntriebswelleLongitudinal groove in drive shaft

Claims (16)

  1. Polishing head, for polishing optical freeform surfaces, having a polishing disc which is connected to a drive shaft which can be rotationally driven, and the polishing disc (3) is connected to the drive shaft (7) in an articulated and rotationally locked manner, characterized in that a pressure chamber (29) is provided, a translatory movement of the polishing disc (3) along a centre axis (2) of the polishing head resulting from pressurizing of the pressure chamber (29), the drive shaft (7) being mounted in a driven hollow cylinder (49) in such a way as to be rotationally locked and displaceable in a translatory manner along the centre axis (2) of the polishing head and the drive shaft (7) having an outer profile (43) which is non-rotationally symmetrical at least in one section, the outer profile (43) being connected to the hollow cylinder in a rotationally locked manner via a rolling-contact bearing arrangement (23, 25) or the outer profile (43) having longitudinal grooves (51), in which balls (53) are arranged, via which balls (53) the drive shaft (7) is connected to the hollow cylinder (49), which is provided on the inside with longitudinal grooves (51) formed in the opposite direction.
  2. Polishing head according to Claim 1, characterized in that a rotary movement of the drive shaft (7) is transmitted to the polishing disc (3) by means of positive locking.
  3. Polishing head according to Claim 1 or 2, characterized in that the polishing disc (3) is mounted on the drive shaft (7) in such a way as to be tiltable about a point lying on the centre axis (2).
  4. Polishing head according to one of the preceding claims, characterized in that the positive locking for transmitting the rotary movement of the drive shaft (7) to the polishing disc (3) is produced in the articulated connection.
  5. Polishing head according to Claim 5, characterized in that a ball socket joint is provided as articulated connection.
  6. Polishing head according to at least one of the preceding claims, characterized in that a catch element (15) is provided for securing the articulated connection of polishing disc (3) and drive shaft (7).
  7. Polishing head according to at least one of the preceding claims, characterized in that the pressure chamber (29) comprises a pressure-chamber cylinder (31), in which a piston (33) is arranged such as to be movable in a translatory manner.
  8. Polishing head according to Claim 10, characterized in that the piston (33) is in operative connection with the drive shaft (7).
  9. Polishing head according to at least one of the preceding claims, characterized in that the drive shaft (7) is mounted in such a way as to be rotationally locked and displaceable in a translatory manner along a centre axis (2) of the polishing head and is connected to a rotationally driven piston in a rotationally locked manner.
  10. Polishing head according to at least one of the preceding claims, characterized in that the outer profile (43) is designed in the form of a polygonal profile.
  11. Polishing machine having a polishing head according to at least one of the preceding claims.
  12. Method of polishing a non-centrosymmetric freeform surface with a polishing machine according to Claim 11, the polishing disc (3) being rotationally driven in the same direction of rotation as the optical surface to be polished.
  13. Method according to Claim 12, characterized in that the body (39) to be treated is driven at approximately the same rotational frequency as the polishing disc (3).
  14. Method according to Claim 13, characterized in that the rotary disc (3) performs a radial movement relative to the body (39) to be treated.
  15. Method according to Claim 14, characterized in that the rotational frequency of the rotary disc (3) or of the surface (41) to be polished is varied as a function of the radial position of the rotary disc (3).
  16. Method according to at least one of Claims 12 to 15, characterized in that the pressure in the chamber (29) is controlled as a function of the surface contour of the optical surface (41), so that the rotary disc resting on the optical surface (41) exerts a predetermined constant polishing pressure on the latter.
EP01909601A 2000-02-03 2001-01-11 Polishing head for a polishing machine Expired - Lifetime EP1251997B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03025546A EP1386694B2 (en) 2000-02-03 2001-01-11 Method of polishing and polishing machine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10004455 2000-02-03
DE10004455 2000-02-03
PCT/EP2001/000253 WO2001056740A1 (en) 2000-02-03 2001-01-11 Polishing head for a polishing machine

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP03025546A Division EP1386694B2 (en) 2000-02-03 2001-01-11 Method of polishing and polishing machine
EP03025546.7 Division-Into 2003-11-08

Publications (3)

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

Family

ID=7629520

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01909601A Expired - Lifetime EP1251997B2 (en) 2000-02-03 2001-01-11 Polishing head for a polishing machine
EP03025546A Expired - Lifetime EP1386694B2 (en) 2000-02-03 2001-01-11 Method of polishing and polishing machine

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP03025546A Expired - Lifetime EP1386694B2 (en) 2000-02-03 2001-01-11 Method of polishing and polishing machine

Country Status (7)

Country Link
US (3) US20030045211A1 (en)
EP (2) EP1251997B2 (en)
JP (1) JP4945771B2 (en)
AU (1) AU2001237285A1 (en)
DE (3) DE50114907D1 (en)
TW (1) TW558477B (en)
WO (1) WO2001056740A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012216724A1 (en) 2012-09-19 2014-03-20 Carl Zeiss Vision International Gmbh Method for polishing molds for manufacturing eyeglass lens, involves generating probabilistic relative movement between eyeglass lens and polishing main portion, so that main portion surface is in abrasive interact with lens surface
DE102012014399A1 (en) 2012-07-20 2014-05-15 Carl Zeiss Vision International Gmbh Device for determining and outputting a spectacle lens type suitable for a spectacle wearer
DE102014206424A1 (en) 2014-04-03 2015-10-08 Carl Zeiss Vision International Gmbh Polishing tool and device and method for shape-error-optimized polishing processing of spectacle lens surfaces and mold shells for eyeglass lens manufacturing

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251997B2 (en) 2000-02-03 2011-06-08 Carl Zeiss Vision GmbH Polishing head for a polishing machine
DE10250856A1 (en) 2002-10-25 2004-05-13 Carl Zeiss Method and device for manufacturing optical glasses
DE10319945A1 (en) * 2003-05-02 2005-01-27 Loh Optikmaschinen Ag Tool for fine machining of optically effective surfaces
DE102004003131A1 (en) * 2004-01-15 2005-08-11 Carl Zeiss Apparatus and method for polishing an optical surface, optical component, and method of manufacturing a polishing tool
DE102004062319B3 (en) * 2004-12-20 2006-03-02 Schneider Gmbh + Co. Kg Polishing tool for optical lenses has tool receiver guided by guide piston fitted co-axially in receiver and movable in direction of axis of rotation
DE102005052314A1 (en) * 2005-11-01 2007-05-03 Satisloh Gmbh Fast tool arrangement, in particular for lathes for processing optical workpieces
DE202008016454U1 (en) * 2008-06-17 2009-03-05 Satisloh Gmbh Tool for polishing and fine grinding of optically effective surfaces in fine optics
JP4709257B2 (en) * 2008-08-08 2011-06-22 株式会社トプコン Lens polishing equipment
GB2477557A (en) * 2010-02-08 2011-08-10 Qioptiq Ltd Aspheric optical surface polishing tool with individually movable polishing pads
DE102010019491B4 (en) 2010-04-30 2015-07-09 Carl Zeiss Vision International Gmbh Polishing tool for processing optical surfaces, in particular free-form surfaces
DE102011014230A1 (en) * 2011-03-17 2012-09-20 Satisloh Ag Device for fine machining of optically effective surfaces on in particular spectacle lenses
FR2972672B1 (en) 2011-03-18 2013-03-15 Coriolis Composites Attn Olivier Bouroullec FIBER APPLICATION MACHINE WITH SAFETY SYSTEM
CN102490104A (en) * 2011-12-09 2012-06-13 中国科学院长春光学精密机械与物理研究所 Automatic processing device for non-spherical reflector
US9352509B1 (en) * 2013-05-08 2016-05-31 The Boeing Company Tools and methods for use in removing a coating
ITBS20130066A1 (en) * 2013-05-16 2014-11-17 Cms Spa TOOL HOLDER UNIT OF STONE OR AFFILIATE POLISHING MACHINES
CN103302585A (en) * 2013-06-25 2013-09-18 濮阳市亚利机械制造有限公司 Grinder for grinding air cannon mouth
DE102016004328A1 (en) 2016-04-13 2017-10-19 Satisloh Ag Tool spindle for a device for fine machining of optically effective surfaces on workpieces
DE102016006741A1 (en) * 2016-06-06 2017-12-07 Schneider Gmbh & Co. Kg Tool, apparatus and method for polishing lenses
CN106002521A (en) * 2016-07-19 2016-10-12 苏州誉衡昌精密机械有限公司 Automatic polishing wheel mechanism
DE102017102094B4 (en) 2017-02-02 2019-07-11 Steffen Nitschke Tool module for fine machining
CN107186572B (en) * 2017-06-09 2023-04-11 中国科学院西安光学精密机械研究所 Aspheric surface optical element polishing device
CN107322411B (en) * 2017-06-09 2023-04-11 中国科学院西安光学精密机械研究所 Large-caliber aspheric optical element polishing device
JP2019000957A (en) * 2017-06-16 2019-01-10 株式会社春近精密 Lens polishing device and lens polishing method
CN109514384A (en) * 2018-11-07 2019-03-26 西安工业大学 The polishing method and device of aspherical optical element
CN109202709A (en) * 2018-11-21 2019-01-15 中国科学院光电技术研究所 Air pressure control constant pressure self-adaptive polishing grinding head
EP3663039A1 (en) 2018-12-03 2020-06-10 Carl Zeiss Vision International GmbH Polishing machine for processing an optical surface of a spectacle lens, holder device for use in the polishing machine, method for processing optical surfaces of spectacles and method for producing a spectacle lens
JP7354879B2 (en) * 2020-03-05 2023-10-03 トヨタ自動車株式会社 automatic water grinding device
CN111906672B (en) * 2020-07-21 2021-05-07 温州大学 Automatic burnishing device based on atmospheric pressure emery wheel
CN113618542A (en) * 2021-07-13 2021-11-09 中国兵器科学研究院宁波分院 Polishing equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0567894A1 (en) † 1992-05-01 1993-11-03 Loh Engineering Ag Device for guiding a workpiece or a tool while machining toric or spheric surfaces of ophtalmic lenses on grinding or polishing machines
DE4442181C1 (en) † 1994-11-26 1995-10-26 Loh Optikmaschinen Ag Tool for fine working of optical lenses
DE29521396U1 (en) † 1995-09-08 1997-02-27 Maier, Dieter, Prof. Dr.-Ing., 91207 Lauf Grinding head for processing glass panes

Family Cites Families (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE318561C (en) *
US2836939A (en) * 1955-03-24 1958-06-03 White Arthur Howard Machine for producing spherical surfaces
US2821813A (en) * 1956-06-28 1958-02-04 Siemens Ag Albis Machine for the production of a paraboloidal body
US2916857A (en) * 1958-02-14 1959-12-15 American Optical Corp Lens surfacing machines
US2994164A (en) * 1960-07-08 1961-08-01 American Optical Corp Method and apparatus for simultaneously grinding lenses
CH450205A (en) † 1961-09-28 1968-01-15 Philips Nv Device for grinding and polishing, in particular curved surfaces, of glass objects
US3226887A (en) * 1962-03-07 1966-01-04 Univis Inc Method and apparatus for processing of ophthalmic lens
US3330075A (en) * 1964-07-01 1967-07-11 Coburn Mfg Company Inc Sphere polisher
DE1239211B (en) * 1964-10-14 1967-04-20 Wilhelm Lot K G Optikmaschinen Gimbal-mounted optical grinding or polishing tool
US3589078A (en) * 1968-07-26 1971-06-29 Itek Corp Surface generating apparatus
US3624969A (en) * 1970-07-15 1971-12-07 American Optical Corp Lens generating apparatus
US3968598A (en) † 1972-01-20 1976-07-13 Canon Kabushiki Kaisha Workpiece lapping device
JPS5321159B2 (en) * 1972-07-17 1978-06-30
US3900971A (en) * 1972-10-26 1975-08-26 Loh Kg Optik W Machine for producing surfaces of optical lenses, for example toric surfaces
DE2252503C3 (en) † 1972-10-26 1975-12-18 Wilhelm Loh Kg Optikmaschinenfabrik, 6330 Wetzlar Optical lens chucks for use in lens grinding or polishing machines
CH556719A (en) 1973-06-29 1974-12-13 Studer Rudolf Impact hammer driven by electric motor - has sealed piston for holding impact tool either in socket or tapped hole
US3874123A (en) 1973-10-11 1975-04-01 Mwa Company Metal conditioning planetary grinder
US3897703A (en) 1974-02-08 1975-08-05 Olin G Phipps Universal socket
US4068413A (en) * 1975-10-02 1978-01-17 Suddarth Jack M Adjustable lens grinding apparatus
DE2734650C2 (en) * 1976-08-03 1983-05-26 Kabushiki Kaisha Seikosha, Tokyo Machine for polishing quartz crystals
US4128968A (en) † 1976-09-22 1978-12-12 The Perkin-Elmer Corporation Optical surface polisher
FR2366912A1 (en) * 1976-10-06 1978-05-05 Essilor Int WORK HEAD FOR A LENS SURFACING MACHINE, ESPECIALLY OPHTHALMIC LENSES IN ORGANIC MATTER, AND MACHINE INCLUDING SUCH A WORK HEAD
IT7822578V0 (en) * 1977-08-13 1978-08-11 Dollond & Aitchison Service Lt APPARATUS AND PROCEDURE FOR SANDING OR POLISHING CURVED SURFACES, IN PARTICULAR LENSES.
US4166342A (en) * 1977-11-21 1979-09-04 The United States Of America As Represented By The Secretary Of The Navy Toroidal polisher
US4201018A (en) * 1978-10-23 1980-05-06 Clarence Pool Cabbing device for gemstones
JPS55115745U (en) * 1979-02-10 1980-08-15
JPS55115745A (en) * 1979-02-28 1980-09-05 Toshiba Corp Portable telephone unit
DE2937977C2 (en) * 1979-09-20 1984-06-14 Prontor-Werk Alfred Gauthier Gmbh, 7547 Wildbad Machine for grinding or milling convex and / or concave spherical surfaces
JPS5884845A (en) * 1981-11-17 1983-05-21 Asahi Chem Ind Co Ltd Acrylonitrile-based polymer composition for forming
JPS5884845U (en) * 1981-12-03 1983-06-08 有限会社佐野光学 lens polishing equipment
JPS6299065A (en) 1985-10-22 1987-05-08 Matsushita Electric Ind Co Ltd Spherical surface grinder
US4956944A (en) * 1987-03-19 1990-09-18 Canon Kabushiki Kaisha Polishing apparatus
JPS63232948A (en) † 1987-03-19 1988-09-28 Canon Inc Pressure turning gear
US4974368A (en) * 1987-03-19 1990-12-04 Canon Kabushiki Kaisha Polishing apparatus
FR2629746B1 (en) 1988-04-06 1991-01-25 Bertin & Cie METHOD AND DEVICE FOR POLISHING AN OPTICAL COMPONENT
US5076683A (en) † 1988-09-14 1991-12-31 Allergan, Inc. Spuncast compound contact lens
US5069081A (en) 1990-01-16 1991-12-03 Nippon Thompson Co., Ltd. Multi-mode splined ball screw assembly
JP2894766B2 (en) * 1990-01-30 1999-05-24 日東光学株式会社 Spherical lens polishing machine
JPH0761606B2 (en) * 1990-03-01 1995-07-05 株式会社春近精密 Optical lenses, mirrors, etc.
JPH04201054A (en) * 1990-11-29 1992-07-22 Nippon Electric Glass Co Ltd Method and device for surface polishing of panel for cathode-ray tube
JP2938593B2 (en) * 1991-01-31 1999-08-23 キヤノン株式会社 Polishing tool holding device and polishing head provided with the polishing tool holding device
US5579509A (en) 1991-02-08 1996-11-26 International Business Machines Corporation Apparatus and method for verifying compatibility of system components
JP3078093B2 (en) * 1992-03-18 2000-08-21 宇部気密ハウジング株式会社 Exhaust hood
JPH0588859U (en) * 1992-05-13 1993-12-03 株式会社春近精密 Polishing equipment for lenses and mirrors
JP3304168B2 (en) * 1993-06-11 2002-07-22 オリンパス光学工業株式会社 Lens polishing method
JPH077846U (en) * 1993-07-09 1995-02-03 オリンパス光学工業株式会社 Lens polisher upper shaft mechanism
US5577950A (en) † 1993-11-29 1996-11-26 Coburn Optical Industries, Inc. Conformal tool operating apparatus and process for an ophthalmic lens finer/polisher
DE29520993U1 (en) 1995-02-14 1996-11-07 OptoTech GmbH, 35435 Wettenberg Device for polishing spherical lens surfaces
US5759457A (en) * 1995-02-24 1998-06-02 Matsushita Electric Industrial Co., Ltd. Method for manufacturing an optical element
GB9512262D0 (en) † 1995-06-16 1995-08-16 Bingham Richard G Tool for computer-controlled machine for optical polishing and figuring
DE29517615U1 (en) 1995-11-07 1995-12-21 Festo Kg, 73734 Esslingen Fluid operated cylinder
JPH10545A (en) * 1996-06-12 1998-01-06 Nikon Corp Polishing head
JPH1019058A (en) 1996-07-01 1998-01-20 Kayseven Co Ltd Clutch and transmission using it
JPH1029149A (en) * 1996-07-12 1998-02-03 Nagata Seisakusho:Kk Polishing device
DE19633855A1 (en) * 1996-08-16 1998-02-19 Mannesmann Ag Method and device for regrinding the rolls installed in hot strip rolling mills
JPH10175148A (en) * 1996-10-14 1998-06-30 Nikon Corp Base material for plastic lens and manufacturing device and method therefor
DE19701312A1 (en) 1997-01-16 1998-07-23 Zeiss Carl Fa Spectacle lens with spherical front and multifocal back, and method for its production
US6099763A (en) * 1997-02-20 2000-08-08 Technology Resources International Corporation Method and apparatus for filling a lens-forming device with a curable fluid
DE19756960B4 (en) 1997-12-20 2011-06-09 Asphericon Gmbh Method for processing rotationally symmetrical functional surfaces
DE29803158U1 (en) † 1998-02-23 1998-08-06 Schneider GmbH + Co. KG, 35239 Steffenberg Multi-spindle polishing machine with various polishing tools
US6165057A (en) * 1998-05-15 2000-12-26 Gill, Jr.; Gerald L. Apparatus for localized planarization of semiconductor wafer surface
DE69940566D1 (en) * 1998-12-01 2009-04-23 Univ London A polishing apparatus having drive means for guiding the grinding tool along a precession path and methods of using the same
EP1251997B2 (en) 2000-02-03 2011-06-08 Carl Zeiss Vision GmbH Polishing head for a polishing machine
DE10164628A1 (en) 2001-02-09 2002-09-05 Optotech Optikmasch Gmbh A method for polishing aspherically ground lens surfaces has a flexible working face matched to the lens surface and rigidised by a magnetic medium.
JP2002346895A (en) 2001-05-29 2002-12-04 Olympus Optical Co Ltd Arm shaft mechanism of lens polishing machine
JP4019058B2 (en) 2001-07-17 2007-12-05 株式会社日立国際電気 Cooling device for electronic device and electronic device with cooling device
JP4244372B2 (en) 2002-01-11 2009-03-25 日本精機株式会社 Semiconductor sensor device
JP3990205B2 (en) 2002-06-21 2007-10-10 オリンパス株式会社 Polishing equipment
JP4201054B2 (en) 2007-02-16 2008-12-24 凸版印刷株式会社 Color filter, manufacturing method thereof, and liquid crystal display device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0567894A1 (en) † 1992-05-01 1993-11-03 Loh Engineering Ag Device for guiding a workpiece or a tool while machining toric or spheric surfaces of ophtalmic lenses on grinding or polishing machines
DE4442181C1 (en) † 1994-11-26 1995-10-26 Loh Optikmaschinen Ag Tool for fine working of optical lenses
DE29521396U1 (en) † 1995-09-08 1997-02-27 Maier, Dieter, Prof. Dr.-Ing., 91207 Lauf Grinding head for processing glass panes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012014399A1 (en) 2012-07-20 2014-05-15 Carl Zeiss Vision International Gmbh Device for determining and outputting a spectacle lens type suitable for a spectacle wearer
EP3539459A1 (en) 2012-07-20 2019-09-18 Carl Zeiss Vision International GmbH Apparatus and method for ascertaining a type of spectacle lens and apparatus and method for determining a refractive power distribution of progressive spectacle lens
DE102012216724A1 (en) 2012-09-19 2014-03-20 Carl Zeiss Vision International Gmbh Method for polishing molds for manufacturing eyeglass lens, involves generating probabilistic relative movement between eyeglass lens and polishing main portion, so that main portion surface is in abrasive interact with lens surface
DE102014206424A1 (en) 2014-04-03 2015-10-08 Carl Zeiss Vision International Gmbh Polishing tool and device and method for shape-error-optimized polishing processing of spectacle lens surfaces and mold shells for eyeglass lens manufacturing

Also Published As

Publication number Publication date
DE10100860A1 (en) 2001-08-23
EP1251997A1 (en) 2002-10-30
JP4945771B2 (en) 2012-06-06
US20030045211A1 (en) 2003-03-06
US8011996B2 (en) 2011-09-06
EP1386694B1 (en) 2009-05-20
TW558477B (en) 2003-10-21
EP1386694B2 (en) 2013-01-09
DE50114907D1 (en) 2009-07-02
EP1386694A1 (en) 2004-02-04
EP1251997B1 (en) 2004-04-14
US7588480B2 (en) 2009-09-15
DE50101982D1 (en) 2004-05-19
US20080020691A1 (en) 2008-01-24
WO2001056740A1 (en) 2001-08-09
US20050037695A1 (en) 2005-02-17
AU2001237285A1 (en) 2001-08-14
JP2003525756A (en) 2003-09-02

Similar Documents

Publication Publication Date Title
EP1251997B2 (en) Polishing head for a polishing machine
EP0567894B1 (en) Device for guiding a workpiece or a tool while machining toric or spheric surfaces of ophtalmic lenses on grinding or polishing machines
EP3442746A1 (en) Tool spindle for a device for fine machining optically active surfaces on workpieces
EP1698432B1 (en) Polishing disc for a finishing tool for finishing optical surfaces especially eyeglass lenses
DE2252503A1 (en) RECEPTACLE FOR OPTICAL LENSES
DE1752510C3 (en) Device for centric clamping of an annular workpiece on a faceplate
DE102014222848B4 (en) Finishing device
EP1990133B1 (en) Grinder as tool for a processing device
DE19634839A1 (en) Fine machining with vibrating head
DE10106007B4 (en) Device for polishing lenses
DE3232363C2 (en)
DE202009004809U1 (en) Pipe grinding machine with adjustable side guide of the sanding belt
EP1600252A2 (en) Tool driving unit, especially for the automatic deburring, the removal of sharp edges or the smoothing of workpieces
DE102008011215B4 (en) Device for the mechanical finishing of running surfaces on roller bearing rings
DE19926414C2 (en) Combination tool for processing optical lenses
EP0765697B1 (en) Device for in-situ precision grinding of the rolls of hot strip mills
DE1577482C3 (en) Device for the fine machining of the crank pins of crankshafts by means of at least one Femstverarbeitungge rates with a device carrier
DE1949611A1 (en) Axial piston machine
DE102009025784A1 (en) Pipe drilling machine, has clamping roller rotated around clamping roller axis and movably supported at clamping roller frame at side such that roller is aligned along running direction of drilling band at different angular positions
US4848266A (en) Device for treating internal surfaces of cylindrical articles
DE1958195B2 (en) INTERNAL GRINDING DEVICE WITH ROTATING AND PLANET-LIKE CIRCULATING, TRUMPED CONE GRINDING DISC
DE10065945A1 (en) Fastener device for abrasive machine tool spindle, has spindle receiving part pivotable about excentral axis
DE2544666A1 (en) GRINDING MACHINE FOR FINE MACHINING OF SPHERICAL INTERIORS
DD139700A2 (en) ADJUSTING UNIT FOR DISTRIBUTION OF WORKPIECE SPINDLE AXIS WORKSTOCKING POINT IN SLIDING GLOVES
DE2711612A1 (en) Piston ring grinding machine - has spring loaded grinding wheel support for finishing inside edge of cup shaped rings

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020712

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17Q First examination report despatched

Effective date: 20021227

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 50101982

Country of ref document: DE

Date of ref document: 20040519

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: CARL ZEISS

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20040414

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

ET Fr: translation filed
PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLAQ Examination of admissibility of opposition: information related to despatch of communication + time limit deleted

Free format text: ORIGINAL CODE: EPIDOSDOPE2

PLAR Examination of admissibility of opposition: information related to receipt of reply deleted

Free format text: ORIGINAL CODE: EPIDOSDOPE4

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: SCHNEIDER GMBH & CO. KG

Effective date: 20050113

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: SCHNEIDER GMBH & CO. KG

Effective date: 20050113

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: CARL ZEISS VISION GMBH

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

R26 Opposition filed (corrected)

Opponent name: SCHNEIDER GMBH & CO. KG

Effective date: 20050113

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20110608

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): CH DE FR LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

Free format text: AUFRECHTERHALTUNG DES PATENTES IN GEAENDERTER FORM

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 50101982

Country of ref document: DE

Effective date: 20110608

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20200121

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20200121

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20200121

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50101982

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL