EP0701498A1 - Gripper for handling spectacle lenses - Google Patents

Gripper for handling spectacle lenses

Info

Publication number
EP0701498A1
EP0701498A1 EP94916869A EP94916869A EP0701498A1 EP 0701498 A1 EP0701498 A1 EP 0701498A1 EP 94916869 A EP94916869 A EP 94916869A EP 94916869 A EP94916869 A EP 94916869A EP 0701498 A1 EP0701498 A1 EP 0701498A1
Authority
EP
European Patent Office
Prior art keywords
suction
gripper
spectacle lens
spectacle
suction pads
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.)
Granted
Application number
EP94916869A
Other languages
German (de)
French (fr)
Other versions
EP0701498B1 (en
Inventor
Lutz Gottschald
Christian Weiss
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.)
Wernicke and Co GmbH
Original Assignee
Wernicke and Co 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
Application filed by Wernicke and Co GmbH filed Critical Wernicke and Co GmbH
Publication of EP0701498A1 publication Critical patent/EP0701498A1/en
Application granted granted Critical
Publication of EP0701498B1 publication Critical patent/EP0701498B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
    • B24B9/146—Accessories, e.g. lens mounting devices
    • 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
    • B24B13/005—Blocking means, chucks or the like; Alignment devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/005—Vacuum work holders

Definitions

  • the invention relates to a device for processing spectacle lenses with at least one processing station for processing the edge and / or a surface of the spectacle lens and a multi-axis positioning unit, with a gripper unit that grips the spectacle lens and into the respective processing station uses or removes from this.
  • Eyeglass lenses are currently manufactured as follows:
  • the invention is based on the object of developing a device for processing spectacle lenses with at least one processing station for processing the edge and / or a surface of the spectacle lens in such a way that simple handling of a spectacle lens and in particular the insertion of this spectacle lens into a riming lens and / or surface processing device is possible.
  • the invention is based on the basic idea of handling glasses with suction cups.
  • Suction pads are generally known for handling objects, but have not been taken into consideration for the handling of spectacle lenses. The reason for this may be that there is a general prejudice that suction cups can only be applied to flat surfaces and not to convex or concave surfaces, as is usually the case with spectacle lenses.
  • the gripper unit designed according to the invention has a plurality, comparatively small suction pads. Even with the progressive surface of a progressive spectacle lens, it can then be assumed that the surface is approximately rotationally symmetrical over the area to which the respective suction gripper is engaging, so that the so-called "bell" of the suction gripper lies completely against the surface.
  • the gripper unit has two “groups” of suction grippers, which are arranged along a straight or curved line.
  • the two groups of suction pads can be arranged along the two sides of a "U".
  • the gripper unit designed according to the invention can, for example, on the concave side of the spectacle lens when automating a known guiding device are placed, a so-called block for holding the spectacle lens in the edging device being placed on the convex side in a known manner.
  • the gripper unit designed according to the invention thus allows, for example, the picking up of a spectacle lens to be edged from a centering unit in which the block has been placed, without an operator having to monitor the insertion process of the spectacle lens into the processing station.
  • FIG. 1 is a plan view of an embodiment of a suction gripper unit designed according to the invention
  • FIG. 2 shows a side view of a further exemplary embodiment.
  • FIG. 1 shows a suction gripper unit according to the invention, which is used for inserting an eyeglass lens into a device (not shown) for processing eyeglass lenses.
  • This device has at least one processing station for processing the edge and / or a surface of the spectacle lens and a multi-axis positioning unit to which the suction gripper unit is attached.
  • the positioning unit serves to position the suction gripper unit relative to the processing station or to insert or remove the suction gripper unit in or out of the processing station.
  • the suction gripper unit has a plurality of suction grippers 1 to 6, the diameter of each of which is significantly smaller than the typical diameter of a spectacle lens.
  • the typical diameter of a lens is between 60 and 80 mm.
  • the suction pads provided according to the invention have preferably has a diameter which is at least a factor of 3 below the diameter of the lens.
  • the diameter of the so-called suction cup of the suction pads is particularly preferably approximately 5 to 15 mm.
  • the individual suction pads 1 to 6 of the suction pad unit are arranged in the form of a "U".
  • two suction cups are connected in terms of flow in such a way that a control unit (not shown) pressurizes or ventilates them together.
  • the suction pads 1 and 4, 2 and 6, 3 and 5 are each connected to one another in terms of flow. It is thus possible to adapt the gripper unit designed according to the invention to individual, extremely designed spectacle lens shapes by switching off individual suction gripper pairs in such a way that the spectacle lenses can be securely picked up and handled.
  • FIG. 2 shows a further exemplary embodiment of the invention.
  • this exemplary embodiment there are two coulters 11 and 12 of suction grippers, of which the coulter 11 is attached to an arm 11 'and the coulter 12 to an arm 12', which can be pivoted about a common pivot point 13.
  • the two arms are biased against each other by springs.
  • This design makes it possible for some of the suction pads to be retractable counter to the direction of attachment, which is symbolized by an arrow 14.
  • the suction gripper unit according to the invention has the advantage, among other things, that the spectacle lens can be easily converted from the horizontal to the vertical position and vice versa after being taken up.
  • the gripper unit can also be adapted to extremely shaped spectacle lenses.
  • Suction cup shapes can be used as suction cups, as are known from the prior art for suction cups for handling boxes, etc. A detailed description of the suction grippers can thus be dispensed with at this point.
  • the control unit which pressurizes or ventilates the individual suction pads or the suction pads combined in pairs can also be designed according to the state of the art, so that a detailed description can also be dispensed with.
  • the device designed according to the invention for processing spectacle lenses with at least one processing station for processing the edge and / or a surface of the spectacle lens and a multi-axis positioning unit makes it possible to easily accommodate an eyeglass lens during the machining process, to handle and insert into a machining station or remove from it.

Abstract

A device for shaping spectacle lenses has at least one shaping station for shaping the edge and/or a surface of the spectable lens and a multiaxis positioning unit with a gripping member which grips the spectacle lens and introduces it into or removes it from the shaping station. The device is characterised in that the gripping member has at least one vacuum gripper which is ventilated or in which a depression is generated by a control unit.

Description

Greifer für die Handhabung von Brillengläsern Gripper for handling glasses
B e s c h r e i b u n gDescription
Technisches GebietTechnical field
Die Erfindung bezieht sich auf eine Vorrichtung zur Bear¬ beitung von Brillengläsern mit wenigstens einer Bearbei¬ tungsstation zur Bearbeitung des Randes und/oder einer Fläche des Brillenglases und einer mehrachsigen Positio¬ niereinheit, mit einer Greifereinheit, die das Brillenglas ergreift und in die jeweilige Bearbeitungsstation einsetzt bzw. aus dieser entnimmt.The invention relates to a device for processing spectacle lenses with at least one processing station for processing the edge and / or a surface of the spectacle lens and a multi-axis positioning unit, with a gripper unit that grips the spectacle lens and into the respective processing station uses or removes from this.
Stand der TechnikState of the art
Brillengläser werden derzeit etwa wie folgt hergestellt:Eyeglass lenses are currently manufactured as follows:
Zunächst wird von dem eigentlichen Hersteller des Brillen¬ glases ein"sogenannter Blank gefertigt; hierunter versteht man ein einseitig fertiges und in der Regel rundes, in manchen Fällen aber auch vorgerandetes Brillenglas. An¬ schließend wird bei Vorliegen einer konkreten Bestellung eines Augenoptik-Fachgeschäftes entweder vom Hersteller selbst oder von einer sogenannten Rezeptglas-Schleiferei entsprechend der jeweiligen Verordnung die zweite Fläche, die deshalb auch als Rezeptfläche bezeichnet wird, gefer¬ tigt.An¬ this is understood finished on one side and round as a rule, but in some cases also vorgerandetes lens of a specific order of eyeglass specialty store is closing if there either; First, a "so-called blank is glases from the actual manufacturer of the Brillen¬ made. the second surface, which is therefore also referred to as the prescription surface, is produced by the manufacturer himself or by a so-called prescription glass grinding plant in accordance with the respective regulation.
Dieses noch runde bzw. erst vorgerandete, aber beidseitig fertige Brillenglas wird dann an den jeweiligen Augenopti¬ ker geschickt, der die Randung des Brillenglases entspre¬ chend der von den Kunden ausgewählten Fassung vornimmt. Zur Einsparung von Arbeitsschritten und/oder Kosten wird in der letzten Zeit verstärkt versucht, die Bearbeitungs¬ schritte "Herstellen der Rezeptfläche" und "Randen des Brillenglases für die ausgwählte Fassung" in ein und der¬ selben Betriebsstätte und nach Möglichkeit in ein und derselben Vorrichtung vorzunehmen.This still round or only pre-rimmed, but finished on both sides spectacle lens is then sent to the respective optician who makes the rim of the spectacle lens according to the frame selected by the customer. In order to save work steps and / or costs, efforts have recently been made increasingly to process the steps "producing the prescription surface" and "edging the spectacle lens for the selected version" in one and the same plant and, if possible, in one and the same device to make.
Vor kurzem ist in einer älteren Patentanmeldung der Anmel¬ derin der vorliegenden Anmeldung, der Wernicke & Co. GmbH, vorgeschlagen worden, zur weiteren Kosteneinsparung die Handhabung der Brillengläser insbesondere in den Randungs- Vorrichtungen mittels eines Industrieroboters, also einer mehrachsigen Positioniereinheit, zu automatisieren.Recently, in an older patent application, the applicant in the present application, Wernicke & Co. GmbH, proposed to further automate the handling of the spectacle lenses, in particular in the edge devices, by means of an industrial robot, that is to say a multi-axis positioning unit.
Darstellung der ErfindungPresentation of the invention
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Bearbeitung von Brillengläsern mit wenigstens einer Berarbeitungsstation zur Bearbeitung des Randes und/oder einer Fläche des Brillenglases derart weiterzubilden, daß eine einfache Handhabung eines Brillenglases und insbeson¬ dere das Einsetzen dieses Brillenglases in eine Randungs¬ und/oder Flächenbearbeitungsvorrichtung möglich ist.The invention is based on the object of developing a device for processing spectacle lenses with at least one processing station for processing the edge and / or a surface of the spectacle lens in such a way that simple handling of a spectacle lens and in particular the insertion of this spectacle lens into a riming lens and / or surface processing device is possible.
Eine erfindungsgemäße Lösung dieser Aufgabe ist im Patent¬ anspruch 1 angegeben. Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.An inventive solution to this problem is specified in claim 1. Developments of the invention are the subject of the dependent claims.
Die Erfindung geht von dem Grundgedanken aus, Brillen¬ gläser mit Sauggreifern handzuhaben. Sauggreifer sind zur Handhabung von Gegenständen allgemein bekannt, jedoch für die Handhabung von Brillengläsern bislang nicht in Be¬ tracht gezogen worden. Der Grund hierfür dürfte sein, daß allgemein das Vorurteil besteht, Sauggreifer könnten nur auf ebenen und nicht auf konvexen oder konkaven Flächen, wie sie bei Brillengläsern in der Regel vorliegen, aufgebracht werden.The invention is based on the basic idea of handling glasses with suction cups. Suction pads are generally known for handling objects, but have not been taken into consideration for the handling of spectacle lenses. The reason for this may be that there is a general prejudice that suction cups can only be applied to flat surfaces and not to convex or concave surfaces, as is usually the case with spectacle lenses.
Da die (Begrenzungs-)Flächen eines Brillenglases häufig sogar eine von der rotationssymmetrischen Form abweichende Form, beispielsweise eine torische Form oder eine rein asphärische Form wie bei progressiven Brillengläsern ha¬ ben, ist es erfindungsgemäß deshalb bevorzugt, wenn die erfindungsgemäß ausgestaltete Greifereinheit mehrere, vergleichsweise kleine Sauggreifer aufweis . Auch bei der progressiven Fläche eines progressiven Brillenglases kann dann davon ausgegangen werden, daß die Fläche über den Bereich, an dem der jeweilige Sauggreifer angreift, an¬ nähernd rotationssymmetrisch ist, so daß die sogenannte "Glocke" des Sauggreifers voll an der Fläche anliegt.Since the (delimiting) surfaces of a spectacle lens often even have a shape which deviates from the rotationally symmetrical shape, for example a toric shape or a purely aspherical shape as in the case of progressive spectacle lenses, it is therefore preferred according to the invention if the gripper unit designed according to the invention has a plurality, comparatively small suction pads. Even with the progressive surface of a progressive spectacle lens, it can then be assumed that the surface is approximately rotationally symmetrical over the area to which the respective suction gripper is engaging, so that the so-called "bell" of the suction gripper lies completely against the surface.
Weiterhin ist es erfindungsgemäß von Vorteil, wenn die Greifereinheit zwei "Scharen" von Sauggreifern aufweist, die längs einer geraden oder gebogenen Linie angeordnet sind. Insbesondere können die beiden Scharen von Sauggrei¬ fern längs der beiden Seiten eines "U" angeordnet sein.Furthermore, it is advantageous according to the invention if the gripper unit has two “groups” of suction grippers, which are arranged along a straight or curved line. In particular, the two groups of suction pads can be arranged along the two sides of a "U".
Bei einer weiteren Ausbildung der erfindungsgemäßen Grei- fereinheit ist es möglich, einzelne Sauggreifer abzuschal¬ ten und/oder in Aufsetzrichtung zurückzuziehen, so daß auch unregelmäßig geformte Brillengläser, wie sie für extreme Brillenfassungen erforderlich sind, sicher gehand¬ habt werden können.In a further embodiment of the gripper unit according to the invention, it is possible to switch off individual suction grippers and / or to pull them back in the mounting direction, so that even irregularly shaped spectacle lenses, as are required for extreme spectacle frames, can be handled safely.
Die erfindungsgemäß ausgebildete Greifereinheit kann bei¬ spielsweise bei der Automatisierung einer bekannten Ran¬ dungsvorrichtung auf die konkave Seite des Brillenglases aufgesetzt werden, wobei auf die konvexe Seite in bekann¬ ter Weise ein sogenannter Block zum Halten des Brillen¬ glases in der Randungsvorrichtung aufgesetzt ist. Die erfindungsgemäß ausgebildete Greifereinheit erlaubt damit beispielsweise das Aufnehmen eines zu randenden Brillen¬ glases aus einer Zentriereinheit, in der der Block aufge¬ setzt worden ist, ohne daß eine Bedienungsperson den Ein¬ setzvorgang des Brillenglases in die Bearbeitungsstation überwachen müßte.The gripper unit designed according to the invention can, for example, on the concave side of the spectacle lens when automating a known guiding device are placed, a so-called block for holding the spectacle lens in the edging device being placed on the convex side in a known manner. The gripper unit designed according to the invention thus allows, for example, the picking up of a spectacle lens to be edged from a centering unit in which the block has been placed, without an operator having to monitor the insertion process of the spectacle lens into the processing station.
Kurze Beschreibung der ZeichnungBrief description of the drawing
Fig. 1 eine Aufsicht auf ein Ausführungsbeispiel einer erfindungsgemäß ausgebildeten Sauggreifereinheit,1 is a plan view of an embodiment of a suction gripper unit designed according to the invention,
Fig. 2 eine Seitenansicht eines weiteren Ausführungsbei¬ spiels.2 shows a side view of a further exemplary embodiment.
Darstellung von AusführungsbeispielenRepresentation of exemplary embodiments
Fig. 1 zeigt eine erfindungsgemäße Sauggreifereinheit, die zum Einsetzen eines Brillenglases in eine nicht darge¬ stellte Vorrichtung zur Bearbeitung von Brillengläsern dient. Diese Vorrichtung weist wenigstens eine Bearbei¬ tungsstation zur Bearbeitung des Randes und/oder einer Fläche des Brillenglases und eine mehrachsige Positionier¬ einheit auf, an der die Sauggreifereinheit angebracht ist. Die Positioniereinheit dient zur Positionierung der Saug¬ greifereinheit relativ zur Bearbeitungsstation bzw. zum Einsetzen bzw. Entnehmen der Sauggreifereinheit in die bzw. aus der Bearbeitungsstation.1 shows a suction gripper unit according to the invention, which is used for inserting an eyeglass lens into a device (not shown) for processing eyeglass lenses. This device has at least one processing station for processing the edge and / or a surface of the spectacle lens and a multi-axis positioning unit to which the suction gripper unit is attached. The positioning unit serves to position the suction gripper unit relative to the processing station or to insert or remove the suction gripper unit in or out of the processing station.
Die Sauggreifereinheit weist mehrere Sauggreifer 1 bis 6 auf, deren Durchmesser jeweils deutlich kleiner als der typische Durchmesser eines Brillenglases ist. Der typische Durchmesser eines Brillenglases liegt zwischen 60 und 80 mm. Die erfindungsgemäß vorgesehenen Sauggreifer weisen bevorzugt einen Durchmesser auf, der um wenigstens den Faktor 3 unter dem Durchmesser des Brillenglases liegt. Besonders bevorzugt liegt der Durchmesser der sogenannten Saugglocke der Sauggreifer bei etwa 5 bis 15 mm.The suction gripper unit has a plurality of suction grippers 1 to 6, the diameter of each of which is significantly smaller than the typical diameter of a spectacle lens. The typical diameter of a lens is between 60 and 80 mm. The suction pads provided according to the invention have preferably has a diameter which is at least a factor of 3 below the diameter of the lens. The diameter of the so-called suction cup of the suction pads is particularly preferably approximately 5 to 15 mm.
Bei dem gezeigten Ausführungsbeispiel sind die einzelnen Sauggreifer 1 bis 6 der Sauggreifereinheit in Form eines "U" angeordnet. Jeweils zwei Sauggreifer sind strömungs¬ mäßig derart verbunden, daß eine nicht dargestellte Steuereinheit sie gemeinsam mit Unterdruck beaufschlagt bzw. belüftet. Bei dem gezeigten Ausführungsbeispiel sind die Sauggreifer 1 und 4, 2 und 6, 3 und 5 jeweils paarwei¬ se miteinander strömungsmäßig verbunden. Damit ist es möglich, die erfindungsgemäß ausgebildete Greifereinheit durch Abschalten einzelner Sauggreifer-Paare auch an ex¬ trem gestaltete Brillenglasformen derart anzupassen, daß die Brillengläser sicher aufgenommen und gehandhabt werden können.In the exemplary embodiment shown, the individual suction pads 1 to 6 of the suction pad unit are arranged in the form of a "U". In each case two suction cups are connected in terms of flow in such a way that a control unit (not shown) pressurizes or ventilates them together. In the exemplary embodiment shown, the suction pads 1 and 4, 2 and 6, 3 and 5 are each connected to one another in terms of flow. It is thus possible to adapt the gripper unit designed according to the invention to individual, extremely designed spectacle lens shapes by switching off individual suction gripper pairs in such a way that the spectacle lenses can be securely picked up and handled.
Fig. 2 zeigt ein weiteres Ausführungsbeispiel der Erfin¬ dung. Bei diesem Ausführungsbeispiel sind zwei Scharen 11 bzw. 12 von Sauggreifern vorhanden, von denen die Schar 11 an einem Arm 11' und die Schar 12 an einem Arm 12' ange¬ bracht ist, die um einen gemeinsamen Drehpunkt 13 schwenk¬ bar sind. Die beiden Arme sind durch Federn gegeneinander vorgespannt. Durch diese Ausbildung ist es möglich, daß ein Teil der Sauggreifer entgegen der Aufsetzrichtung, die durch einen Pfeil 14 symbolisiert ist, zurückziehbar ist.2 shows a further exemplary embodiment of the invention. In this exemplary embodiment there are two coulters 11 and 12 of suction grippers, of which the coulter 11 is attached to an arm 11 'and the coulter 12 to an arm 12', which can be pivoted about a common pivot point 13. The two arms are biased against each other by springs. This design makes it possible for some of the suction pads to be retractable counter to the direction of attachment, which is symbolized by an arrow 14.
Die erfindungsgemäße Sauggreifereinheit hat u.a. den Vor¬ teil, daß das Brillenglas nach der Aufnahme problemlos von der waagrechten in die senkrechte Lage und umgekehrt umge¬ setzt werden kann. Darüberhinaus ist es insbesondere bei dem in Fig. 2 dargestellten Ausführungsbeispiel möglich, das Brillenglas durch Zurückziehen einer Schar von Saug¬ greifern gegen einen Anschlag anzulegen. Weiterhin kann durch Zurückziehen eines Teils der Sauggreifer die Grei¬ fereinheit auch an extrem geformte Brillengläser angepaßt werden.The suction gripper unit according to the invention has the advantage, among other things, that the spectacle lens can be easily converted from the horizontal to the vertical position and vice versa after being taken up. In addition, it is possible, in particular in the exemplary embodiment shown in FIG. 2, to put the spectacle lens against a stop by pulling back a group of suction cups. Furthermore, by pulling back part of the suction pads, the gripper unit can also be adapted to extremely shaped spectacle lenses.
Als Sauggreifer können Sauggreifer-Formen verwendet wer¬ den, wie sie aus dem Stand der Technik für Sauggreifer für die Handhabung von Kisten etc. bekannt sind. Damit kann an dieser Stelle auf eine detaillierte Beschreibung der Saug¬ greifer verzichtet werden.Suction cup shapes can be used as suction cups, as are known from the prior art for suction cups for handling boxes, etc. A detailed description of the suction grippers can thus be dispensed with at this point.
Auch die Steuereinheit, die die einzelnen Sauggreifer bzw. die paarweise zusammengefaßten Sauggreifer mit Unterdruck beaufschlagt bzw. belüftet, kann gemäß dem Stand der Tech¬ nik gestaltet werden, so daß ebenfalls auf eine detail¬ lierte Beschreibung verzichtet werden kann.The control unit which pressurizes or ventilates the individual suction pads or the suction pads combined in pairs can also be designed according to the state of the art, so that a detailed description can also be dispensed with.
In jedem Falle wird durch die erfindungsgemäß ausgestalte¬ te Vorrichtung zur Bearbeitung von Brillengläsern mit wenigstens einer Bearbeitungsstation zur Bearbeitung des Randes und/oder einer Fläche des Brillenglases und einer mehrachsigen Positioniereinheit die Möglichkeit geschaf¬ fen, ein Brillenglas während des Bearbeitungsvorgangs in einfacher Weise aufzunehmen, handzuhaben und in eine Bear¬ beitungsstation einzusetzen bzw. aus dieser zu entnehmen. In any case, the device designed according to the invention for processing spectacle lenses with at least one processing station for processing the edge and / or a surface of the spectacle lens and a multi-axis positioning unit makes it possible to easily accommodate an eyeglass lens during the machining process, to handle and insert into a machining station or remove from it.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Vorrichtung zur Bearbeitung von Brillengläsern mit wenigstens einer Bearbeitungsstation zur Bearbeitung des Randes und/oder einer Fläche des Brillenglases und einer mehrachsigen Positioniereinheit, mit einer Greifereinheit, die das Brillenglas ergreift und in die jeweilige Bearbeitungsstation einsetzt bzw. aus dieser entnimmt, dadurch gekennzeichnet, daß die Greifereinheit wenigstens einen Sauggreifer aufweist, den eine Steuereinheit mit Unterdruck beaufschlagt bzw. belüftet.1. Apparatus for processing spectacle lenses with at least one processing station for processing the edge and / or a surface of the spectacle lens and a multi-axis positioning unit, with a gripper unit that grips the spectacle lens and inserts or removes it from the respective processing station, characterized in that that the gripper unit has at least one suction gripper, which a control unit acts on or ventilates with negative pressure.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß mehrere Sauggreifer vorgesehen sind, deren Durchmesser jeweils deutlich kleiner als der typische Durchmesser eines Brillenglases ist.2. Device according to claim 1, characterized in that a plurality of suction pads are provided, the diameter of each of which is significantly smaller than the typical diameter of a spectacle lens.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Sauggreifer in zwei Scha¬ ren angeordnet sind, von denen jede Schar längs einer geraden oder einer gebogenen Linie angeordnet ist .3. Apparatus according to claim 2, characterized in that the suction pads are arranged in two shares, each of which is arranged along a straight or a curved line.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die beiden Scharen in etwa die Form eines "U" bilden.4. The device according to claim 3, characterized in that the two groups form approximately the shape of a "U".
5. Vorrichtung nach einem der Ansprüche 2 bis , dadurch gekennzeichnet, daß einzelne Sauggreifer abschalt- bar sind. 5. Device according to one of claims 2 to, characterized in that individual suction pads can be switched off.
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß wenigstens ein Teil der Saug- greifer entgegen der Aufsetzrichtung zurückziehbar ist.6. The device according to claim 5, characterized in that at least part of the suction gripper is retractable against the mounting direction.
7. Vorrichtung nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, daß jeweils zwei Sauggreifer diagonal derart gekoppelt sind, daß sie gemeinsam mit Unterdruck beaufschlagt bzw. abgeschaltet werden. 7. Device according to one of claims 3 to 6, characterized in that in each case two suction pads are coupled diagonally in such a way that they are acted upon or switched off together with negative pressure.
EP94916869A 1993-06-01 1994-06-01 Gripper for handling spectacle lenses Expired - Lifetime EP0701498B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4318138 1993-06-01
DE4318138 1993-06-01
PCT/DE1994/000611 WO1994027782A1 (en) 1993-06-01 1994-06-01 Gripper for handling spectacle lenses

Publications (2)

Publication Number Publication Date
EP0701498A1 true EP0701498A1 (en) 1996-03-20
EP0701498B1 EP0701498B1 (en) 1998-09-09

Family

ID=6489345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94916869A Expired - Lifetime EP0701498B1 (en) 1993-06-01 1994-06-01 Gripper for handling spectacle lenses

Country Status (4)

Country Link
US (1) US5653626A (en)
EP (1) EP0701498B1 (en)
DE (2) DE4493439D2 (en)
WO (1) WO1994027782A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1001418C2 (en) * 1995-10-13 1997-04-15 Tno Method and device for forming a rotationally symmetrical surface.
JP3778707B2 (en) * 1998-09-29 2006-05-24 株式会社ニデック Eyeglass lens processing equipment
GB0802651D0 (en) * 2008-02-14 2008-03-19 3M Innovative Properties Co Methods and machines for lens deblocking
USD734793S1 (en) * 2014-02-01 2015-07-21 John M. Leslie Container gripper

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Publication number Priority date Publication date Assignee Title
US3618271A (en) * 1969-09-15 1971-11-09 American Optical Corp Multifocal lens manufacturing process and apparatus
JPS5871055A (en) * 1981-10-22 1983-04-27 Nippon Kogaku Kk <Nikon> Lens holder
JPS5916906B2 (en) * 1981-11-20 1984-04-18 株式会社ニコン lens polishing equipment
SU1079373A1 (en) * 1983-02-04 1984-03-15 Предприятие П/Я В-2265 Vacuum chuck
US4662119A (en) * 1984-07-25 1987-05-05 Haruchika Precision Company, Ltd. Automatic lens grinding apparatus
US4684113A (en) * 1984-09-28 1987-08-04 The Boeing Company Universal holding fixture
BE902515A (en) * 1985-05-28 1985-11-28 Saint Roch Glaceries Plant for holding reduced pressure over glass sheets - comprising a platen with branched pipe with sealed branch ends at platen surface
DE4127094C2 (en) * 1991-08-16 1994-09-08 Wernicke & Co Gmbh System for grinding the optical surfaces and / or the peripheral edge of spectacle lenses

Non-Patent Citations (1)

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Title
See references of WO9427782A1 *

Also Published As

Publication number Publication date
US5653626A (en) 1997-08-05
EP0701498B1 (en) 1998-09-09
DE4493439D2 (en) 1996-08-22
DE59406890D1 (en) 1998-10-15
WO1994027782A1 (en) 1994-12-08

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