EP1710046A2 - Bevelling machine for optical glasses - Google Patents

Bevelling machine for optical glasses Download PDF

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Publication number
EP1710046A2
EP1710046A2 EP06005466A EP06005466A EP1710046A2 EP 1710046 A2 EP1710046 A2 EP 1710046A2 EP 06005466 A EP06005466 A EP 06005466A EP 06005466 A EP06005466 A EP 06005466A EP 1710046 A2 EP1710046 A2 EP 1710046A2
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EP
European Patent Office
Prior art keywords
spectacle
drive
spindle
lens
shaft
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
EP06005466A
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German (de)
French (fr)
Other versions
EP1710046A3 (en
EP1710046B1 (en
Inventor
Frank Janetta
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Buchmann Deutschland GmbH
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Buchmann Deutschland GmbH
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Publication date
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Publication of EP1710046A2 publication Critical patent/EP1710046A2/en
Publication of EP1710046A3 publication Critical patent/EP1710046A3/en
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Publication of EP1710046B1 publication Critical patent/EP1710046B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • 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
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • 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
    • B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation

Definitions

  • the invention relates to a spectacle lens edge processing machine with a driven, set in slow rotation spectacle lens holding shaft, a parallel thereto grinding spindle with at least one grinding wheel, the spectacle lens holding shaft and the grinding spindle are relatively movable in the axial direction and perpendicular thereto controlled and controlled from a rest position outside the range of motion a spectacle lens held by the spectacle lens holding shaft in a working position in the region of the held by the spectacle lens holding shaft spectacle lens Fas and scoring tool.
  • a spectacle lens edge processing machine which comprises a mounted on a pivoting lever creasing and Fastechnikmaschine.
  • the creasing and chamfering tool can be pivoted controlled from a rest position outside the range of a lens held by the spectacle lens holding shaft in a working position in the area held by the spectacle lens holding shaft lens and is placed in the working position in direct contact with one on the grinding spindle together with a grinding wheel package Friction wheel brought into contact and thereby driven.
  • the pivot lever for the Fas- and creasing tool is mounted in the housing of the spectacle lens edge processing machine regardless of the grinding wheel package and its drive.
  • the swinging into the working position is effected by a crank mechanism with spring force support.
  • the pivot lever Since the pivot lever is mounted with the Fas- and creasing tool in the housing independent of the grinding wheel package, it is only in conjunction with a relative to the grinding wheel package in the axial direction and perpendicularly controlled movable eyeglass lens holding shaft usable. Furthermore, the storage in the housing requires additional space, which is not always given. In addition, the known spectacle lens edge processing machine requires an additional friction wheel on the grinding spindle parallel to the grinding wheel package.
  • the invention is based on the object to propose an improved spectacle lens edge processing machine in which the swinging Fas and scoring tool has a small footprint and is usable with any type of spectacle lens edge processing machine, in which the spectacle lens support shaft and the grinding spindle relative to each other in the axial direction and controlled perpendicular thereto are mobile.
  • the flexible shaft is provided with its own drive, there is a reduced space requirement in the area of the at least one grinding wheel.
  • the arrangement of a bearing neck of the grinding spindle also reduces the space required, and it is possible to effect the relative movement between the lens holding shaft and the grinding spindle by a cross slide bearing the grinding spindle, since the Fas- and scoring tool moves in this case with the grinding spindle and no special storage in the housing of the spectacle lens edge processing machine is required.
  • the flexible shaft makes it possible to store the drive shaft for the chamfering and scoring tool stationary on the bearing neck of the grinding spindle.
  • the flexible shaft can be in a switchable drive connection directly with the belt drive.
  • a friction roller can be mounted at the end of the pivot lever, coupled directly to the flexible shaft and be pressed against a, a pulley on the grinding spindle wraparound Dahlkeilriemen.
  • a pulley may be disposed at the end of the flexible shaft which is in driving connection with a pulley or a tension pulley of the belt drive via a shiftable clutch and a belt.
  • the Fas- and creasing tool can advantageously be mounted on a pivoting lever with a pivot spindle parallel to the grinding spindle on the bearing neck for the grinding spindle, wherein in the grinding spindle a coaxial drive shaft for the Fas and creasing tool is mounted.
  • the friction roller may preferably be mounted on a pivotable by means of a pressed by the rotary drive for the pivoting cam drive against the belt drive pivot lever, wherein the rotary drive means of gears and a flexible shaft arranged approximately parallel, mounted on the console shaft acts on the pivot spindle and an eccentric Cam on a pivot lever for the friction roller adjacent, arranged on the shaft wheel causes the pivoting movement of the pivot lever for the friction roller.
  • the rotary drive for the pivot lever of the Fas- and scoring tool thus simultaneously causes the pressing of the friction roller against the belt drive when the Fas and scoring tool is pivoted from the rest position to the working position.
  • the pivot lever for the friction roller can be acted upon by a tension spring, while the cam causes the lifting of the friction roller, the belt drive.
  • a bearing neck 8 is fixed, in which a grinding spindle is mounted, which carries at one end at least one grinding wheel, preferably a grinding wheel package 2 and at its other end a pulley 3 of a belt drive.
  • These elements are mounted in a manner not shown on a cross slide and can be moved in the direction of the axis of rotation of the grinding wheel 2 and perpendicular thereto with respect to a spectacle lens holding shaft, not shown, which holds a likewise not shown, to be processed lens clamped and can be put in slow rotation.
  • the grinding wheel package 2 serves to machine a circular spectacle lens held by the spectacle lens holding shaft in such a way that it assumes the form of a selected spectacle frame. Furthermore, the grinding wheel package 2 serves to provide the shaped-ground spectacle lens with a roof facet, with the aid of which the finished spectacle lens is inserted and held in a corresponding facet groove of the spectacle frame.
  • a chamfering and scoring tool 4 serves to chamfer the sharp-edged edges of a form-ground spectacle lens and to install a groove on the edge of the molded-ground spectacle lens instead of a roof facet.
  • This Fas- and creasing tool 4 is mounted on a pivot lever 5, to which a pivot spindle 6 is attached.
  • the pivot spindle 6 is rotatably mounted in a bearing 7 on one of the brackets 1 of the grinding spindle, not shown.
  • the axis of the pivot spindle 6 extends substantially parallel to the axis of the bearing neck 8.
  • a drive shaft, not shown, for the Fas- and scoring tool 4 is rotatably mounted, from where within the pivot lever 5 is a drive connection to the Fas- and scoring tool 4.
  • a gear 9 is fixed, on which a pivot drive for the pivot lever 5 engages.
  • a flexible shaft 10 is coupled, which is guided to a means of a bearing block 13 mounted on a pivot lever 12 friction roller 11 and coupled to the friction roller 11.
  • the friction roller 11 is rotated via a splined belt 16 by a drive motor, not shown in rotation.
  • a tension pulley 26 provides the required belt tension.
  • the friction roller 11 can be brought into contact with the guided around the pulley 3, splined belt 16 to enable the Fas and creasing tool via the flexible shaft 10 and the drive shaft in rotation.
  • a tension spring 15 which tends to pull the friction roller 11 against the splined belt 16 on the pulley 3.
  • This is prevented in the illustrated position by a cam 20 which engages in a cam opening 14 on the pivot lever 12.
  • the cam 20 is arranged eccentrically on a gear 19, which is on the one hand via a gear set 18 and a gear segment 23 with a drive motor 17 and on the other hand via a mounted on the console 1 shaft 21 and another gear 22 with the gear 9 is engaged.
  • the pivot lever 5 When the drive motor 17 is rotated, the pivot lever 5 is moved with the Fas- and creasing tool via the gears 9, 22, 19, 18 and the gear segment 23 from the rest position to the working position and vice versa.
  • An arranged on the pivot lever 5 stop 27 limits the pivoting movement in the working position, while the drive motor 17 is turned off in the end positions by a cam 24 on the gear segment 23 and limit switch 25.
  • the cam 20 moves in the cam opening 14 due to its arrangement on the gear 19 in such a way that the friction roller 11 applies in the working position on the splined belt 16 on the pulley 3 due to the force exerted by the spring 15 traction, so that the chamfering and scoring tool 4 is rotated as the pulley 3 rotates.
  • the roller 11 may be mounted firmly, and the pivot lever 12 with its actuators is then not required.
  • the molded spectacle lens clamped in the spectacle lens holding shaft is either with its edges in the chamfering region of the chamfering and scoring tool 4 or for producing a groove on the peripheral edge of the machined spectacle lens in the scoring region of the chamfering and scoring tool brought.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

The machine has a grinding spindle with a wheel, a pulley (3), a V-belt and a tension pulley, and a spectacle glass retaining axle and the spindle that are movably controlled. A chamfer and rilling tool (4) is pivoted from a rest position outside a movement area of a glass retained by the axle into a machining position within an area of the glass. A flexible axle (10) is provided between a rubbing roller and a drive axle of the tool.

Description

Die Erfindung betrifft eine Brillenglasrandbearbeitungsmaschine mit einer angetriebenen, in langsame Drehung versetzbaren Brillenglashaltewelle, einer parallel dazu angeordneten Schleifspindel mit wenigstens einer Schleifscheibe, wobei die Brillenglashaltewelle und die Schleifspindel relativ zueinander in Achsrichtung und senkrecht dazu gesteuert beweglich sind und einem gesteuert aus einer Ruhestellung außerhalb des Bewegungsbereichs eines von der Brillenglashaltewelle gehaltenen Brillenglases in eine Arbeitsstellung im Bereich des von der Brillenglashaltewelle gehaltenen Brillenglases einschwenkbaren Fas- und Rillwerkzeug.The invention relates to a spectacle lens edge processing machine with a driven, set in slow rotation spectacle lens holding shaft, a parallel thereto grinding spindle with at least one grinding wheel, the spectacle lens holding shaft and the grinding spindle are relatively movable in the axial direction and perpendicular thereto controlled and controlled from a rest position outside the range of motion a spectacle lens held by the spectacle lens holding shaft in a working position in the region of the held by the spectacle lens holding shaft spectacle lens Fas and scoring tool.

In der EP 0 820 837 A1 ist eine Brillenglasrandbearbeitungsmaschine beschrieben, die ein an einem Schwenkhebel gelagertes Rill- und Faswerkzeug umfasst. Das Rill- und Faswerkzeug lässt sich gesteuert aus einer Ruhestellung außerhalb des Bereichs eines von der Brillenglashaltewelle gehaltenen Brillenglases in eine Arbeitsstellung im Bereich des von der Brillenglashaltewelle gehaltenen Brillenglases einschwenken und wird in der Arbeitsstellung in direkten Kontakt mit einem auf der Schleifspindel zusammen mit einem Schleifscheibenpaket angeordneten Reibrad in Berührung gebracht und dadurch angetrieben.In the EP 0 820 837 A1 a spectacle lens edge processing machine is described which comprises a mounted on a pivoting lever creasing and Faswerkzeug. The creasing and chamfering tool can be pivoted controlled from a rest position outside the range of a lens held by the spectacle lens holding shaft in a working position in the area held by the spectacle lens holding shaft lens and is placed in the working position in direct contact with one on the grinding spindle together with a grinding wheel package Friction wheel brought into contact and thereby driven.

Der Schwenkhebel für das Fas- und Rillwerkzeug ist im Gehäuse der Brillenglasrandbearbeitungsmaschine unabhängig von dem Schleifscheibenpaket und ihrem Antrieb gelagert. Das Einschwenken in die Arbeitsstellung wird durch einen Kurbeltrieb mit Federkraftunterstützung bewirkt.The pivot lever for the Fas- and creasing tool is mounted in the housing of the spectacle lens edge processing machine regardless of the grinding wheel package and its drive. The swinging into the working position is effected by a crank mechanism with spring force support.

Da der Schwenkhebel mit dem Fas- und Rillwerkzeug im Gehäuse unabhängig von dem Schleifscheibenpaket gelagert ist, ist es nur in Verbindung mit einer gegenüber dem Schleifscheibenpaket in Achsrichtung und senkrecht dazu gesteuert beweglichen Brillenglashaltewelle verwendbar. Des Weiteren erfordert die Lagerung im Gehäuse einen zusätzlichen Platzbedarf, der nicht immer gegeben ist. Außerdem erfordert die bekannte Brillenglasrandbearbeitungsmaschine ein zusätzliches Reibrad auf der Schleifspindel parallel zum Schleifscheibenpaket.Since the pivot lever is mounted with the Fas- and creasing tool in the housing independent of the grinding wheel package, it is only in conjunction with a relative to the grinding wheel package in the axial direction and perpendicularly controlled movable eyeglass lens holding shaft usable. Furthermore, the storage in the housing requires additional space, which is not always given. In addition, the known spectacle lens edge processing machine requires an additional friction wheel on the grinding spindle parallel to the grinding wheel package.

Dementsprechend liegt der Erfindung die Aufgabe zu Grunde, eine verbesserte Brillenglasrandbearbeitungsmaschine vorzuschlagen, bei der das einschwenkbare Fas- und Rillwerkzeug einen geringen Platzbedarf aufweist und mit jeder Art von Brillenglasrandbearbeitungsmaschine verwendbar ist, bei der die Brillenglashaltewelle und die Schleifspindel relativ zueinander in Achsrichtung und senkrecht dazu gesteuert beweglich sind.Accordingly, the invention is based on the object to propose an improved spectacle lens edge processing machine in which the swinging Fas and scoring tool has a small footprint and is usable with any type of spectacle lens edge processing machine, in which the spectacle lens support shaft and the grinding spindle relative to each other in the axial direction and controlled perpendicular thereto are mobile.

Ausgehend von dieser Aufgabenstellung wird bei einer Brillenglasrandbearbeitungsmaschine der eingangs erwähnten Art vorgeschlagen, ein aus der Ruhestellung in die Arbeitsstellung einschwenkbares Fas- und Rillwerkzeug an einem Lagerhals der Schleifspindel zu lagern und eine angetriebene, flexible Welle, die mit einem Antriebsteil für das Fas- und Rillwerkzeug gekuppelt ist, vorzusehen.Based on this problem is proposed in a spectacle lens edge processing machine of the type mentioned above, to store a swinging from the rest position in the working position Fas and creasing tool to a bearing neck of the grinding spindle and a driven, flexible shaft, which is coupled to a drive part for the Fas- and creasing tool to provide.

Dadurch, dass die flexible Welle mit einem eigenen Antrieb versehen ist, besteht im Bereich der wenigstens einen Schleifscheibe ein verringerter Platzbedarf. Durch die Anordnung an einem Lagerhals der Schleifspindel wird ebenfalls der Platzbedarf verringert, und es ist möglich, die Relativbewegung zwischen der Brillenglashaltewelle und der Schleifspindel durch eine Kreuzschlittenlagerung der Schleifspindel zu bewirken, da sich das Fas- und Rillwerkzeug in diesem Fall mit der Schleifspindel bewegt und keine besondere Lagerung im Gehäuse der Brillenglasrandbearbeitungsmaschine erforderlich ist. Die flexible Welle erlaubt es, die Antriebswelle für das Fas- und Rillwerkzeug ortsfest an dem Lagerhals der Schleifspindel zu lagern.Because the flexible shaft is provided with its own drive, there is a reduced space requirement in the area of the at least one grinding wheel. The arrangement of a bearing neck of the grinding spindle also reduces the space required, and it is possible to effect the relative movement between the lens holding shaft and the grinding spindle by a cross slide bearing the grinding spindle, since the Fas- and scoring tool moves in this case with the grinding spindle and no special storage in the housing of the spectacle lens edge processing machine is required. The flexible shaft makes it possible to store the drive shaft for the chamfering and scoring tool stationary on the bearing neck of the grinding spindle.

Wenn die Schleifscheibe durch einen Riementrieb angetrieben wird, kann die flexible Welle in schaltbarer Antriebsverbindung direkt mit dem Riementrieb stehen.If the grinding wheel is driven by a belt drive, the flexible shaft can be in a switchable drive connection directly with the belt drive.

Bevorzugterweise kann eine Reibrolle am Ende des Schwenkhebels gelagert, direkt mit der flexiblen Welle gekuppelt und gegen einen, eine Riemenscheibe auf der Schleifspindel umschlingenden Vielkeilriemen andrückbar sein.Preferably, a friction roller can be mounted at the end of the pivot lever, coupled directly to the flexible shaft and be pressed against a, a pulley on the grinding spindle wraparound Vielkeilriemen.

Gemäß einer anderen Ausführungsform kann eine Riemenscheibe am Ende der flexiblen Welle angeordnet sein, die über eine schaltbare Kupplung und einen Riemen in Antriebsverbindung mit einer Riemenscheibe oder einer Spannrolle des Riementriebs steht.According to another embodiment, a pulley may be disposed at the end of the flexible shaft which is in driving connection with a pulley or a tension pulley of the belt drive via a shiftable clutch and a belt.

Das Fas- und Rillwerkzeug kann vorteilhafterweise an einem Schwenkhebel mit einer Schwenkspindel parallel zur Schleifspindel an dem Lagerhals für die Schleifspindel gelagert sein, wobei in der Schleifspindel eine koaxiale Antriebswelle für das Fas- und Rillwerkzeug gelagert ist.The Fas- and creasing tool can advantageously be mounted on a pivoting lever with a pivot spindle parallel to the grinding spindle on the bearing neck for the grinding spindle, wherein in the grinding spindle a coaxial drive shaft for the Fas and creasing tool is mounted.

Die Schwenkbewegung des Fas- und Rillwerkzeugs von der Ruhestellung in die Arbeitsstellung und umgekehrt wird durch einen Drehantrieb bewirkt, der an einer den Lagerhals für die Schleifspindel tragenden Konsole angeordnet ist.The pivotal movement of the Fas- and Rillwerkzeugs from the rest position to the working position and vice versa is effected by a rotary drive, which is arranged on a bearing neck for the grinding spindle bearing console.

Die Reibrolle kann vorzugsweise an einem mittels einer durch den Drehantrieb für die Schwenkspindel betätigten Nockentrieb gegen den Riemenantrieb schwenkbaren Schwenkhebel gelagert sein, wobei der Drehantrieb mittels Zahnräder und einer zur flexiblen Welle etwa parallel angeordneten, an der Konsole gelagerten Welle auf die Schwenkspindel wirkt und ein exzentrischer Nocken an einem zum Schwenkhebel für die Reibrolle benachbarten, auf der Welle angeordneten Rad die Schwenkbewegung des Schwenkhebels für die Reibrolle bewirkt.The friction roller may preferably be mounted on a pivotable by means of a pressed by the rotary drive for the pivoting cam drive against the belt drive pivot lever, wherein the rotary drive means of gears and a flexible shaft arranged approximately parallel, mounted on the console shaft acts on the pivot spindle and an eccentric Cam on a pivot lever for the friction roller adjacent, arranged on the shaft wheel causes the pivoting movement of the pivot lever for the friction roller.

Der Drehantrieb für den Schwenkhebel des Fas- und Rillwerkzeugs bewirkt somit gleichzeitig das Andrücken der Reibrolle gegen den Riemenantrieb, wenn das Fas- und Rillwerkzeug aus der Ruhestellung in die Arbeitsstellung geschwenkt wird.The rotary drive for the pivot lever of the Fas- and scoring tool thus simultaneously causes the pressing of the friction roller against the belt drive when the Fas and scoring tool is pivoted from the rest position to the working position.

Um die Reibrolle mit einer vorgebbaren Kraft an die Riemenscheibe anzudrücken, kann der Schwenkhebel für die Reibrolle mittels einer Zugfeder beaufschlagt sein, während der Nocken das Abheben der Reibrolle, vom Riementrieb bewirkt.To press the friction roller with a predetermined force to the pulley, the pivot lever for the friction roller can be acted upon by a tension spring, while the cam causes the lifting of the friction roller, the belt drive.

Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels des Näheren erläutert.The invention will be explained below with reference to an embodiment of the closer shown in the drawing.

Von einer Brillenglasrandbearbeitungsmaschine ist nur ein die Erfindung betreffender Teilbereich dargestellt. An Konsolen 1 ist ein Lagerhals 8 befestigt, in dem eine Schleifspindel gelagert ist, die an ihrem einen Ende mindestens eine Schleifscheibe, vorzugsweise ein Schleifscheibenpaket 2 und an ihrem anderen Ende eine Riemenscheibe 3 eines Riementriebs trägt. Diese Elemente sind in nicht dargestellter Weise auf einem Kreuzschlitten gelagert und lassen sich in Richtung der Drehachse des Schleifscheibenpakets 2 sowie senkrecht dazu bezüglich einer nicht dargestellten Brillenglashaltewelle bewegen, die ein ebenfalls nicht dargestelltes, zu bearbeitendes Brillenglas eingeklemmt hält und sich in langsame Umdrehung versetzen lässt.From a spectacle lens edge processing machine, only one part of the invention is shown. To consoles 1, a bearing neck 8 is fixed, in which a grinding spindle is mounted, which carries at one end at least one grinding wheel, preferably a grinding wheel package 2 and at its other end a pulley 3 of a belt drive. These elements are mounted in a manner not shown on a cross slide and can be moved in the direction of the axis of rotation of the grinding wheel 2 and perpendicular thereto with respect to a spectacle lens holding shaft, not shown, which holds a likewise not shown, to be processed lens clamped and can be put in slow rotation.

Das Schleifscheibenpaket 2 dient dazu, ein kreisrundes, von der Brillenglashaltewelle gehaltenes Brillenglas so zu bearbeiten, dass es die Form einer ausgewählten Brillenfassung annimmt. Des Weiteren dient das Schleifscheibenpaket 2 dazu, das formgeschliffene Brillenglas mit einer Dachfacette zu versehen, mit Hilfe derer das fertige Brillenglas in eine entsprechende Facettennut der Brillenfassung eingesetzt und gehalten wird.The grinding wheel package 2 serves to machine a circular spectacle lens held by the spectacle lens holding shaft in such a way that it assumes the form of a selected spectacle frame. Furthermore, the grinding wheel package 2 serves to provide the shaped-ground spectacle lens with a roof facet, with the aid of which the finished spectacle lens is inserted and held in a corresponding facet groove of the spectacle frame.

Ein Fas- und Rillwerkzeug 4 dient dazu, die scharfkantigen Ränder eines formgeschliffenen Brillenglases anzufasen sowie an Stelle einer Dachfacette eine Nut auf dem Rand des formgeschliffenen Brillenglases anzubringen. Dieses Fas- und Rillwerkzeug 4 ist an einem Schwenkhebel 5 gelagert, an dem eine Schwenkspindel 6 befestigt ist. Die Schwenkspindel 6 ist drehbar in einer Lagerung 7 an einer der Konsolen 1 der nicht dargestellten Schleifspindel gelagert. Die Achse der Schwenkspindel 6 verläuft im Wesentlichen parallel zur Achse des Lagerhalses 8.A chamfering and scoring tool 4 serves to chamfer the sharp-edged edges of a form-ground spectacle lens and to install a groove on the edge of the molded-ground spectacle lens instead of a roof facet. This Fas- and creasing tool 4 is mounted on a pivot lever 5, to which a pivot spindle 6 is attached. The pivot spindle 6 is rotatably mounted in a bearing 7 on one of the brackets 1 of the grinding spindle, not shown. The axis of the pivot spindle 6 extends substantially parallel to the axis of the bearing neck 8.

Innerhalb der Schwenkspindel 6 ist eine nicht dargestellte Antriebswelle für das Fas- und Rillwerkzeug 4 drehbar gelagert, von wo aus innerhalb des Schwenkhebels 5 eine Antriebsverbindung zum Fas- und Rillwerkzeug 4 besteht. An der Schwenkspindel 6 ist ein Zahnrad 9 befestigt, an dem ein Schwenkantrieb für den Schwenkhebel 5 angreift. Mit der Antriebswelle ist eine flexible Welle 10 gekuppelt, die zu einer mittels eines Lagerbocks 13 an einem Schwenkhebel 12 gelagerten Reibrolle 11 geführt und mit der Reibrolle 11 gekuppelt ist. Die Reibrolle 11 wird über einen Vielkeilriemen 16 von einem nicht dargestellten Antriebsmotor in Drehung versetzt. Eine Spannrolle 26 sorgt für die erforderliche Riemenspannung.Within the pivot spindle 6, a drive shaft, not shown, for the Fas- and scoring tool 4 is rotatably mounted, from where within the pivot lever 5 is a drive connection to the Fas- and scoring tool 4. On the pivot spindle 6, a gear 9 is fixed, on which a pivot drive for the pivot lever 5 engages. With the drive shaft, a flexible shaft 10 is coupled, which is guided to a means of a bearing block 13 mounted on a pivot lever 12 friction roller 11 and coupled to the friction roller 11. The friction roller 11 is rotated via a splined belt 16 by a drive motor, not shown in rotation. A tension pulley 26 provides the required belt tension.

Die Reibrolle 11 lässt sich in Kontakt mit dem um die Riemenscheibe 3 geführten, Vielkeilriemen 16 bringen, um das Fas- und Rillwerkzeug über die flexible Welle 10 und die Antriebswelle in Drehung zu versetzen.The friction roller 11 can be brought into contact with the guided around the pulley 3, splined belt 16 to enable the Fas and creasing tool via the flexible shaft 10 and the drive shaft in rotation.

Am Schwenkhebel 12 greift eine Zugfeder 15 an, die die Reibrolle 11 gegen den Vielkeilriemen 16 auf der Riemenscheibe 3 zu ziehen bestrebt ist. Dies wird in der dargestellten Stellung durch einen Nocken 20, der in eine Nockenöffnung 14 am Schwenkhebel 12 eingreift, verhindert. Der Nocken 20 ist exzentrisch auf einem Zahnrad 19 angeordnet, das einerseits über einen Zahnradsatz 18 und ein Zahnradsegment 23 mit einem Antriebsmotor 17 und andererseits über eine an der Konsole 1 gelagerten Welle 21 und ein weiteres Zahnrad 22 mit dem Zahnrad 9 in Eingriff steht.On the pivot lever 12 engages a tension spring 15, which tends to pull the friction roller 11 against the splined belt 16 on the pulley 3. This is prevented in the illustrated position by a cam 20 which engages in a cam opening 14 on the pivot lever 12. The cam 20 is arranged eccentrically on a gear 19, which is on the one hand via a gear set 18 and a gear segment 23 with a drive motor 17 and on the other hand via a mounted on the console 1 shaft 21 and another gear 22 with the gear 9 is engaged.

Wenn der Antriebsmotor 17 in Drehung versetzt wird, wird der Schwenkhebel 5 mit dem Fas- und Rillwerkzeug über die Zahnräder 9, 22, 19, 18 und das Zahnradsegment 23 von der Ruhestellung in die Arbeitsstellung und umgekehrt bewegt. Ein am Schwenkhebel 5 angeordneter Anschlag 27 begrenzt die Schwenkbewegung in die Arbeitsstellung, während durch einen Nocken 24 am Zahnradsegment 23 und Endschalter 25 der Antriebsmotor 17 in den Endstellungen abgeschaltet wird. Gleichzeitig bewegt sich der Nocken 20 in der Nockenöffnung 14 auf Grund seiner Anordnung am Zahnrad 19 in der Weise, dass sich die Reibrolle 11 in der Arbeitsstellung an den Vielkeilriemen 16 auf der Riemenscheibe 3 auf Grund der durch die Feder 15 ausgeübten Zugkraft anlegt, so dass das Fas- und Rillwerkzeug 4 in Drehung versetzt wird, wenn sich die Riemenscheibe 3 dreht.When the drive motor 17 is rotated, the pivot lever 5 is moved with the Fas- and creasing tool via the gears 9, 22, 19, 18 and the gear segment 23 from the rest position to the working position and vice versa. An arranged on the pivot lever 5 stop 27 limits the pivoting movement in the working position, while the drive motor 17 is turned off in the end positions by a cam 24 on the gear segment 23 and limit switch 25. At the same time the cam 20 moves in the cam opening 14 due to its arrangement on the gear 19 in such a way that the friction roller 11 applies in the working position on the splined belt 16 on the pulley 3 due to the force exerted by the spring 15 traction, so that the chamfering and scoring tool 4 is rotated as the pulley 3 rotates.

Beim Zurückschwenken des Schwenkhebels 5 in die Ruhestellung bewirkt der Nocken 20 das Abheben der Reibrolle 11 vom Vielkeilriemen 16 auf der Riemenscheibe 3.When swinging back the pivot lever 5 in the rest position causes the cam 20 lifting the friction roller 11 from the splined belt 16 on the pulley. 3

Gemäß einer anderen, nicht dargestellten Ausführungsform, kann an der Riemenscheibe 3 oder an der Spannrolle 26 eine Riemenscheibe angeordnet sein, von der ein Antriebsriemen zu der in diesem Fall als Riemenscheibe ausgebildeten Rolle 11 geführt ist. Über eine schaltbare Kupplung kann dann die Drehung des Fas- und Rillwerkzeugs bewirkt werden. In diesem Fall kann die Rolle 11 fest gelagert sein, und der Schwenkhebel 12 mit seinen Betätigungselementen ist dann nicht erforderlich.According to another, not shown embodiment, may be arranged on the pulley 3 or on the tension pulley 26, a pulley from which a drive belt is guided to the pulley 11 formed in this case roller. Via a switchable coupling, the rotation of the Fas and scoring tool can then be effected. In this case, the roller 11 can be mounted firmly, and the pivot lever 12 with its actuators is then not required.

In der Arbeitsstellung des Fas- und Rillwerkzeugs 4 wird das in die Brillenglashaltewelle eingespannte, formbearbeitete Brillenglas entweder mit seinen Kanten in den Anfasbereich des Fas- und Rillwerkzeugs 4 oder zum Herstellen einer Rille auf dem Umfangsrand des formbearbeiteten Brillenglases in den Rillbereich des Fas- und Rillwerkzeugs gebracht.In the working position of the chamfering and scoring tool 4, the molded spectacle lens clamped in the spectacle lens holding shaft is either with its edges in the chamfering region of the chamfering and scoring tool 4 or for producing a groove on the peripheral edge of the machined spectacle lens in the scoring region of the chamfering and scoring tool brought.

Die Bewegungsabläufe beim Formbearbeiten eines Brillenglases, beim Anfasen der Kanten und beim Rillen des Umfangsrandes erfolgen rechnergesteuert in bekannter Weise und brauchen im Einzelnen nicht beschrieben zu werden.The movements during the molding of a spectacle lens, the chamfering of the edges and the grooves of the peripheral edge are computer controlled in a known manner and need not be described in detail.

Claims (9)

Brillenglasrandbearbeitungsmaschine mit einer angetriebenen, in langsame Drehung versetzbaren Brillenglashaltewelle - einer parallel dazu angeordneten Schleifspindel mit wenigstens einer Schleifscheibe (2) und einem Antrieb (3, 16, 26) der Schleifspindel, wobei die Brillenglashaltewelle und die Schleifspindel relativ zueinander in Achsrichtung und senkrecht dazu gesteuert beweglich sind, - einem gesteuert aus einer Ruhestellung außerhalb des Bewegungsbereiche eines von der Brillenglashaltewelle gehaltenen Brillenglases in eine Arbeitsstellung im Bereich des von der Brillenglashaltewelle gehaltenen Brillenglases einschwenkbarren Fas- und Rillwerkzeug (4) an einem Lagerhals (8) der Schleifspindel und - einer mit einem Antriebsteil für das Fas- und Rillwerkzeug (4) gekuppelten, angetriebenen flexiblen Welle (10). A spectacle-lens edge processing machine with a driven, rotatable eyeglass lens holding shaft a grinding spindle arranged parallel thereto with at least one grinding wheel (2) and a drive (3, 16, 26) of the grinding spindle, wherein the spectacle lens holding shaft and the grinding spindle are movable relative to one another in the axial direction and controlled perpendicular thereto, - A controlled from a rest position outside the range of motion of a lens held by the spectacle lens holding lens in a working position in the region of the held by the spectacle lens holding shaft lens Fas and creasing tool (4) on a bearing neck (8) of the grinding spindle and - One with a drive part for the Fas- and creasing tool (4) coupled, driven flexible shaft (10). Brillenglasrandbearbeitungsmaschine nach Anspruch 1, bei der die Schleifschleibe (2) durch einen Riementrieb (3, 16, 26) angetrieben ist und die flexible Welle (10) in schaltbarer Antriebsverbindung direkt mit dem Riementrieb (3, 16, 26) steht.A spectacle-lens edge processing machine according to claim 1, wherein the grinding wheel (2) is driven by a belt drive (3, 16, 26) and the flexible shaft (10) is in switchable drive connection directly with the belt drive (3, 16, 26). Brillenglasrandbearbeitungsmaschine nach Anspruch 2, bei der eine Reibrolle (11) am Ende eines Schwenkhebels (12) gelagert, direkt mit der flexiblen Welle (10) gekuppelt und gegen einen, eine Riemenscheibe (3) auf der Schleifspindel umschließenden Vielkeilriemen (16) andrückbar ist.A spectacle lens edging machine according to claim 2, wherein a friction roller (11) is mounted on the end of a pivoting lever (12), coupled directly to the flexible shaft (10) and engageable against a splined belt (16) surrounding the pulley (3). Brillenglasrandbearbeitungsmaschine nach Anspruch 2, bei der eine Riemenscheibe am Ende der flexiblen Welle (10) über eine schaltbare Kupplung und einen Riemen in Antriebsverbindung mit einer Reimenscheibe (3) oder einer Spannrolle (26) des Riementriebs (3, 16) steht.A spectacle-lens edge processing machine according to claim 2, wherein a pulley at the end of the flexible shaft (10) via a switchable coupling and a belt in driving connection with a rhyming disc (3) or a tension roller (26) of the belt drive (3, 16). Brillenglasrandbearbeitungsmaschine nach einem der Ansprüche 1 bis 4 , bei der das Fas- und Rillwerkezeug (4) an einem Schwenkhebel (5) mit einer Schwenkspindel (6) parallel zur Schleifspindel an dem Lagerhals (8) für die Schleifspindel gelagert ist und in der Schwenkspindel (6) eine koaxiale Antriebswelle für das Fas- und Rillwerkzeug (4) gelagert ist.A spectacle-lens edge processing machine according to one of claims 1 to 4, in which the chamfering and scoring tool (4) is mounted on a swivel lever (5) with a swivel spindle (6) parallel to the grinding spindle on the bearing neck (8) for the grinding spindle and in the swivel spindle (6). 6) a coaxial drive shaft for the Fas and creasing tool (4) is mounted. Brillenglasrandbearbeitungsmaschine nach einem der Ansprüche 1 bis 5, bei der an einer den Lagerhals (8) für die Schleifspindel tragenden Konsole (1) ein Drehantrieb (9, 17, 18, 19, 21, 22, 23) für die Schwenkspindel (6) angeordnet ist.A spectacle-lens edge processing machine according to one of Claims 1 to 5, in which a rotary drive (9, 17, 18, 19, 21, 22, 23) for the swivel spindle (6) is arranged on a bracket (1) carrying the bearing neck (8) for the grinding spindle is. Brillenglasrandbearbeitungsmaschine nach Anspruch 6 bei der die Reibrolle (11) an dem mittels einer durch den Drehantrieb (9, 17 18, 19, 21, 22, 23) für die Schwenkspindel (6) betätigten Nockentrieb (14, 20) gegen den Riementrieb (3, 16) schwenkbaren Schwenkhebel (12) gelagert ist.The spectacle-lens edging machine according to claim 6, wherein the friction roller (11) is pressed against the belt drive (3, 17, 18, 19, 21, 22, 23) for the pivot spindle (6) by means of a cam drive (14, 20) , 16) pivotable pivot lever (12) is mounted. Brillenglasrandbearbeitungsmaschine nach Anspruch 7, bei der der Drehantrieb (9, 17, 18, 19, 21, 22, 23) mittels Zahnräder (18, 19, 22) und einer zur flexiblen Welle (10) etwa parallel angeordneten, an der Konsole (1) gelagerten Welle (21) auf die Schwenkspindel (6) wirkt und ein exzentrischer Nocken (20) an einem zum Schwenkhebel (12) für die Reibrolle (11) benachbarten, auf der Welle (21) angeordneten Zahnrad (19) die Schwenkbewegung des Schwenkhebels (12) für die Reibrolle (11) bewirkt.A spectacle-lens edging machine according to claim 7, in which the rotary drive (9, 17, 18, 19, 21, 22, 23) is arranged on the bracket (1) by means of toothed wheels (18, 19, 22) and approximately parallel to the flexible shaft (10) ) mounted shaft (21) on the pivot spindle (6) and an eccentric cam (20) on a pivot lever (12) for the friction roller (11) adjacent, on the shaft (21) arranged gear (19), the pivotal movement of the pivot lever (12) for the friction roller (11) causes. Brillenglasrandbearbeitungsmaschine nach Anspruch 8, bei der eine Zugfeder (15) die Bewegung des Schwenkhebels (12) zur Anlage der Reibrolle (11) am Riementrieb (3, 16) und der Nocken (20) das Abheben der Reibrolle (11) vom Riementrieb (3, 16) bewirken.A spectacle-lens edge processing machine according to claim 8, wherein a tension spring (15) controls the movement of the pivoting lever (12) to restrain the friction roller (11) on the belt drive (3, 16) and the cams (20) lift the friction roller (11) from the belt drive (3 , 16).
EP20060005466 2005-04-04 2006-03-17 Bevelling machine for optical glasses Expired - Fee Related EP1710046B1 (en)

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DE200510015449 DE102005015449B3 (en) 2005-04-04 2005-04-04 Spectacle lens edging machine

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US1740551A (en) * 1925-05-09 1929-12-24 Erdis G Robinson Lens-beveling attachment for lens-edge-grinding machines
EP0820837A1 (en) * 1996-07-22 1998-01-28 Briot International Optical glasses grinding machine
WO2001070461A1 (en) * 2000-03-18 2001-09-27 Wernicke & Co. Gmbh Supplementary grinding tool for use in an edge grinding machine for spectacle lenses
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CN108115501A (en) * 2017-11-20 2018-06-05 常州索高机械有限公司 Twin shaft feeding emery wheel can nutation type glass chamfering machine structure
CN108115501B (en) * 2017-11-20 2023-10-10 常州索高机械有限公司 Biax feeding grinding wheel can beat formula glass chamfering mechanism

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DE502006000889D1 (en) 2008-07-24
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EP1710046B1 (en) 2008-06-11

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