WO2000003838A1 - Device for a spectacle lens edge machining tool for the non-rotational and immobile holding of an uncut glass - Google Patents
Device for a spectacle lens edge machining tool for the non-rotational and immobile holding of an uncut glass Download PDFInfo
- Publication number
- WO2000003838A1 WO2000003838A1 PCT/EP1999/004259 EP9904259W WO0003838A1 WO 2000003838 A1 WO2000003838 A1 WO 2000003838A1 EP 9904259 W EP9904259 W EP 9904259W WO 0003838 A1 WO0003838 A1 WO 0003838A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spectacle lens
- glass
- optical surface
- driver part
- raw glass
- 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.)
- Ceased
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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
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
Definitions
- the invention relates to a device on an eyeglass lens processing machine for rotationally and displaceably holding a raw lens between the axially movable halves of an eyeglass holding shaft when machining the edge of the raw glass
- an optician has to process a pair of lenses in accordance with the optical values of glasses that the customer has given him and the frame selected by the customer, he can order the glasses with the specified optical values from a manufacturer of glasses, which usually has a large number be held in stock by glasses with different optical values.This applies to both silicate and plastic glasses.
- the optician then carries out the edge processing according to the selected glasses frame, inserts the finished glasses into the glasses frame and hands the finished glasses to the customer
- Blocks made of a low-melting metal alloy can be used for the edge processing, but the blocks are usually made of plastic. These blocks have a relatively small diameter, which is smaller than the smallest distance between the edge of the lens and the optical center, in order to prevent these blocks from forming reach the processing area of the tool for processing the edge of a spectacle lens
- the conventional blocks adhere insufficiently to these highly reflective optical surfaces, even if the side of the block facing the optical surface is provided with an adhesive film, so that the raw glass is shaped when the edge is shaped due to the torque exerted during the grinding on the raw glass in the holder in a spectacle lens holding shaft, it can rotate parallel to the grinding wheel or even shift due to the grinding pressure in the holder clamped in the lens holder shaft and the grinding process resumed.
- the lens will unusable if this twisting or shifting is noticed too late or not at all, because the shape grinding after twisting the raw glass in the clamping no longer takes place with the correct axis position of a possibly existing cylindrical or prismatic cut or a close-up part and with a shift in the clamping the decentration no longer corresponds to the original and required value
- German patent 42 14 242 from the same applicant a block or suction device is described, the diameter of which is equal to or a little smaller than the diameter of the raw glass, so that a much larger adhesive surface is available and this block or suction device is both for one-sided holding during processing an optical surface as well as for processing the edge, even of highly anti-reflective glasses is suitable in this known block or suction cup, however, the material must be selected such that the diameter areas of the block or suction cup that protrude beyond the finished spectacle glass when processing the edge of the lens have it processed at the same time
- a device of the type mentioned at the outset it has a prefabricated driver part with a customary diameter, which is considerably smaller than the diameter of the raw glass, made of an elastically deformable elastomer or polyurethane and which has a high coefficient of friction compared to highly reflective glasses made of silicate glass or Has plastic and is provided with centering and driver elements on the side of the raw glass facing away from the optical surface and a contact surface on an optical surface of the raw glass on the other side, and a coaxial, easily removable adhesive film cut or a narrow, coaxial adhesive film ring on the contact surface with considerable has a smaller area than the contact surface, the driver part being pressed axially against the optical surface of the raw lens axially against the optical surface of the lens by means of a receiving head on the spectacle lens holding shaft t
- the invention is based on the knowledge that it is not the small diameter of the conventional block itself, the difficulties in holding a raw glass when processing the edge, but that it is the insufficient static friction and the insufficient contact between the block and the raw glass that do not allow sufficient adhesive force to be generated
- the invention is based on the knowledge of producing the driver part from a material which has an increased coefficient of friction compared to the optical surface of the raw glass and can be pressed over the entire surface of the optical surface, so that a perfect holding force transmission is ensured
- the adhesive film cut which has a substantially smaller area than that of the driver part and which has an adhesive layer at least on the side facing the optical surface of the raw glass, which ensures easy detachment of the adhesive film cut after the edge processing, sufficient adhesion of the driver part is achieved when centering, while twisting or slipping of the raw glass with respect to the driver part is prevented by the full-surface pressing of the contact surface of the driver part by means of the receiving head on the spectacle lens holding shaft during the edge processing
- Elastomers or polyurethanes can be used as materials with an increased coefficient of friction
- the contact surface of the driver part can preferably have a pre-shaped curvature which is matched to the optical surface of the raw glass, as a result of which a full-surface contact is ensured without excessive deformation
- the driver part can also have a plank serration which interacts with a complementary plank serration on the receiving head, the outside diameter of the driving part preferably being equal to the outside diameter of the receiving head
- a raw glass 2 with optical surfaces 3, 4 and an edge 5 is provided with a driver part 6 of relatively small diameter in a conventional centering device.
- the driver part 6 has a driver slot 7 on the side facing away from the optical surface 3, into which a corresponding nose of a Recording head 13 engages on an axially displaceable spectacle lens holding shaft half 12 in a spectacle lens edge processing machine.
- a desaxed bore 8 is arranged in the slot 7, into which a corresponding pin engages on the receiving head 13
- a serration 9 is arranged, which interacts with a complementary serration on the receiving head 13 of the spectacle lens holding shaft half 12.
- the driver part 6 adheres to the optical surface 3 of the raw glass 2 um with an adhesive film cut 11 of small diameter
- the driver part 6 is made elastically deformable from an elastomer or a polyurethane and has a high coefficient of friction compared to the highly reflective surface 3 of the raw glass 2.
- the raw glass 2 is moved with its optical surface 4 by axially shifting the half-wave 12 pressed against a holding head 15 on a coaxial half shaft 14
- the receiving head 13 has a complementary serration in the area of the plank serration 9 on the driver part 6, so that this ensures a form-fitting coupling between the driver part 6 and the receiving head 13 Recording head 13 with its contact surface
- an adhesive layer can also be provided at this point, which can be attached to the driver part 6 and / or to the receiving head 13
- a narrow adhesive film ring can also be attached to the periphery of the holding part 6
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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)
- Eyeglasses (AREA)
Abstract
Description
"Einrichtung an einer Brillenglasrandbearbeitungsmaschine zum dreh- und verschiebefesten Halten eines Rohglases""Device on a spectacle lens edge processing machine for holding a raw lens rotatably and displaceably"
Die Erfindung betrifft eine Einrichtung an einer Brillenglasrandbearbeitungsmaschine zum dreh- und verschiebefesten Halten eines Rohglases zwischen den axial gegeneinander verfahrbaren Hälften einer Brillenglashaltewelle beim maschinellen Bearbeiten des Randes des RohglasesThe invention relates to a device on an eyeglass lens processing machine for rotationally and displaceably holding a raw lens between the axially movable halves of an eyeglass holding shaft when machining the edge of the raw glass
Hat ein Optiker entsprechend den ihm von seinem Kunden mitgeteilten optischen Werten von Brillenglasern und dem vom Kunden ausgesuchten Brillengestell ein Paar Brillenglaser zu bearbeiten, kann er die Brillenglaser mit den vorgegebenen optischen Werten bei einem Hersteller von Brillenglasern bestellen, bei dem in der Regel eine große Anzahl von Brillenglasern mit unterschiedlichen optischen Werten auf Lager gehalten werden Dies gilt sowohl für Silikat- als auch für Kunststoffglaser Der Optiker nimmt dann die Randbearbeitung entsprechend dem ausgewählten Brillengestell vor, setzt die fertig bearbeiteten Brillenglaser in das Brillengestell ein und übergibt die fertige Brille dem KundenIf an optician has to process a pair of lenses in accordance with the optical values of glasses that the customer has given him and the frame selected by the customer, he can order the glasses with the specified optical values from a manufacturer of glasses, which usually has a large number be held in stock by glasses with different optical values.This applies to both silicate and plastic glasses.The optician then carries out the edge processing according to the selected glasses frame, inserts the finished glasses into the glasses frame and hands the finished glasses to the customer
Für die Randbearbeitung lassen sich Blocke aus einer niedrigschmelzenden Metallegierung verwenden, jedoch bestehen die Blocke in der Regel aus Kunststoff Diese Blocke haben einen verhältnismäßig kleinen Durchmesser, der kleiner als der kleinste Abstand eines Brillenglasrandes vom optischen Mittelpunkt ist, um zu vermeiden, daß diese Blocke in den Bearbeitungsbereich des Werkzeuges zum Bearbeiten des Randes eines Brillenglases gelangenBlocks made of a low-melting metal alloy can be used for the edge processing, but the blocks are usually made of plastic.These blocks have a relatively small diameter, which is smaller than the smallest distance between the edge of the lens and the optical center, in order to prevent these blocks from forming reach the processing area of the tool for processing the edge of a spectacle lens
Ein Problem kann bei der Randbearbeitung von Rohglasern mit hochentspiegelten optischen Oberflachen auftreten An diesen hochentspiegelten optischen Oberflachen haften die herkömmlichen Blocke nur ungenügend, selbst wenn die der optischen Oberflache zugekehrte Seite des Blocks mit einer Klebefolie versehen ist, so daß sich das Rohglas beim Formschleifen des Randes aufgrund des beim Schleifen auf das Rohglas ausgeübten Drehmoments in der Halterung in einer Brillenglashaltewelle parallel zur Schleifscheibe verdrehen oder sich sogar aufgrund des Schleifdrucks in der Halterung verschieben kann Tritt ein solches Verdrehen oder Verschieben auf, muß günstigstenfalls der Schleifvorgang unterbrochen, das Rohglas neu zentriert, wieder in die Brillenglashaltewelle eingespannt und der Schleifvorgang wieder aufgenommen werden Ungunstigstenfalls wird das Brillenglas unbrauchbar, wenn dieses Verdrehen oder Verschieben zu spat oder gar nicht bemerkt wird, da das Formschleifen nach einem Verdrehen des Rohglases in der Einspannung nicht mehr mit der richtigen Achsenlage eines eventuell vorhandenen zylinderischen oder prismatischen Schliffs oder eines Nahteils erfolgt und bei einem Verschieben in der Einspannung die Dezentration nicht mehr dem ursprunglichen und erforderlichen Wert entsprichtA problem can arise in the edge processing of raw glasses with highly reflective optical surfaces. The conventional blocks adhere insufficiently to these highly reflective optical surfaces, even if the side of the block facing the optical surface is provided with an adhesive film, so that the raw glass is shaped when the edge is shaped due to the torque exerted during the grinding on the raw glass in the holder in a spectacle lens holding shaft, it can rotate parallel to the grinding wheel or even shift due to the grinding pressure in the holder clamped in the lens holder shaft and the grinding process resumed. In the worst case, the lens will unusable if this twisting or shifting is noticed too late or not at all, because the shape grinding after twisting the raw glass in the clamping no longer takes place with the correct axis position of a possibly existing cylindrical or prismatic cut or a close-up part and with a shift in the clamping the decentration no longer corresponds to the original and required value
In dem deutschen Patent 42 14 242 derselben Anmelderin ist ein Block oder Sauger beschrieben, dessen Durchmesser gleich oder wenig kleiner als der Durchmesser des Rohglases ist, so daß eine sehr viel größere Haftflache zur Verfügung steht und dieser Block oder Sauger sowohl zum einseitigen Halten beim Bearbeiten einer optischen Oberflache als auch zum Bearbeiten des Randes, selbst von hoch entspiegelten Glasern geeignet ist Bei diesem bekannten Block oder Sauger muß jedoch das Material so gewählt sein, daß sich die über das fertige Brillenglas überstehenden Durchmesserbereiche des Blocks oder Saugers beim Bearbeiten des Randes des Brillenglases gleichzeitig mit abarbeiten lassenIn German patent 42 14 242 from the same applicant, a block or suction device is described, the diameter of which is equal to or a little smaller than the diameter of the raw glass, so that a much larger adhesive surface is available and this block or suction device is both for one-sided holding during processing an optical surface as well as for processing the edge, even of highly anti-reflective glasses is suitable in this known block or suction cup, however, the material must be selected such that the diameter areas of the block or suction cup that protrude beyond the finished spectacle glass when processing the edge of the lens have it processed at the same time
Obwohl sich dieser Block oder Sauger bewahrt hat, hat sich bei der Benutzung herausgestellt, daß es wünschenswert ist, bei bestimmten Anwendungsfallen einen herkömmlichen Block mit normalem Durchmesser verwenden zu können, so daß der Erfindung das Problem zugrunde liegt, einen leicht ablösbaren, herkömmlichen Block kleinen Durchmessers mit einer so großen Haftkraft auf einem Rohglas zu versehen, daß er sich zum dreh- und verschiebefesten Halten von hochentspiegelten Glasern bei der Randbearbeitung eignet und sich in herkömmlicher Weise in einer Zentriervorrichtung lagegenau auf dem Rohglas befestigen laßtAlthough this block or nipple has been preserved, it has been found in use that it is desirable to be able to use a conventional block of normal diameter in certain applications, so that the problem underlying the invention is an easily detachable, conventional block small To provide diameter with such a large adhesive force on a raw glass that it is suitable for rotatably and displaceably holding highly reflective glasses during edge processing and can be fixed in a conventional manner in a centering device on the raw glass
Ausgehend von dieser Problemstellung wird bei einer Einrichtung der eingangs erwähnten Art vorgeschlagen, daß sie erfindungsgemaß mit einem vorgefertigten Mitnehmerteil mit üblichem, gegenüber dem Durchmesser des Rohglases erheblich kleineren Durchmesser aus einem elastisch verformbarem Elastomer oder Polyurethan, das einen hohen Reibwert gegenüber hochentspiegelten Brillenglasern aus Silkatglas oder Kunststoff aufweist und mit Zentrier- und Mitnehmerelementen an der der optischen Oberflache abgewandten Seite des Rohglases sowie einer Anlageflache an einer optischen Flache des Rohglases auf der anderen Seite versehen ist und einen koaxialen, leicht ablösbaren Klebefolienzuschnitt oder einen schmalen, koaxialen Klebefolienring auf der Anlageflache mit erheblich kleinerer Flache als die Anlageflache aufweist, wobei das Mitnehmerteil mittels eines Aufnahmekopfs an der Brillenglashaltewelle vollflachig unter elastischer Verformung axial gegen die optische Flache des Rohglases gepreßt wirdBased on this problem, it is proposed in a device of the type mentioned at the outset that, according to the invention, it has a prefabricated driver part with a customary diameter, which is considerably smaller than the diameter of the raw glass, made of an elastically deformable elastomer or polyurethane and which has a high coefficient of friction compared to highly reflective glasses made of silicate glass or Has plastic and is provided with centering and driver elements on the side of the raw glass facing away from the optical surface and a contact surface on an optical surface of the raw glass on the other side, and a coaxial, easily removable adhesive film cut or a narrow, coaxial adhesive film ring on the contact surface with considerable has a smaller area than the contact surface, the driver part being pressed axially against the optical surface of the raw lens axially against the optical surface of the lens by means of a receiving head on the spectacle lens holding shaft t
Die Erfindung beruht auf der Erkenntnis, daß es nicht der kleine Durchmesser des herkömmlichen Blocks selber ist, der Schwierigkeiten bei der Halterung eines Rohglases beim Bearbeiten des Randes bereitet, sondern daß es der zu kleine Haftreibwert und die ungenügende Anlage zwischen dem Block und dem Rohglas ist, die es nicht erlauben, eine ausreichende Haftkraft zu erzeugenThe invention is based on the knowledge that it is not the small diameter of the conventional block itself, the difficulties in holding a raw glass when processing the edge, but that it is the insufficient static friction and the insufficient contact between the block and the raw glass that do not allow sufficient adhesive force to be generated
Dementsprechend beruht die Erfindung auf der Erkenntnis, das Mitnehmerteil aus einem Material herzustellen, das gegenüber der optischen Flache des Rohglases einen vergrößerten Reibwert aufweist und sich auf die optische Oberflache vollflachig pressen laßt, so daß eine einwandfreie Haltekraftub ertragung gewahrleistet istAccordingly, the invention is based on the knowledge of producing the driver part from a material which has an increased coefficient of friction compared to the optical surface of the raw glass and can be pressed over the entire surface of the optical surface, so that a perfect holding force transmission is ensured
Mittels des Klebefolienzuschnitts, der eine wesentlich kleinere Flache als die des Mitnehmerteils und der wenigstens auf der der optischen Flache des Rohglases zugewandten Seite eine Kleberschicht aufweist, die ein leichtes Ablosen des Klebefolienzuschnitts nach der Randbearbeitung gewahrleistet, wird eine ausreichende Haftung des Mitnehmerteils beim Zentrieren bewirkt, wahrend ein Verdrehen oder ein Verrutschen des Rohglases gegenüber dem Mitnehmerteil durch das vollflachige Anpressen der Anlageflache des Mitnehmerteils mittels des Aufnahmekopfs an der Brillenglashaltewelle wahrend der Randbearbeitung verhindert wirdBy means of the adhesive film cut, which has a substantially smaller area than that of the driver part and which has an adhesive layer at least on the side facing the optical surface of the raw glass, which ensures easy detachment of the adhesive film cut after the edge processing, sufficient adhesion of the driver part is achieved when centering, while twisting or slipping of the raw glass with respect to the driver part is prevented by the full-surface pressing of the contact surface of the driver part by means of the receiving head on the spectacle lens holding shaft during the edge processing
Als Materialien mit erhöhtem Reibwert kommen Elastomere oder Polyurethane in FrageElastomers or polyurethanes can be used as materials with an increased coefficient of friction
Vorzugsweise kann die Anlageflache des Mitnehmerteils eine der optischen Flache des Rohglases angepaßte, vorgeformte Wölbung aufweisen, wodurch eine vollflachige Anlage ohne übermäßige Verformung gewahrleistet istThe contact surface of the driver part can preferably have a pre-shaped curvature which is matched to the optical surface of the raw glass, as a result of which a full-surface contact is ensured without excessive deformation
Das Mitnehmerteil kann auch eine Plankerbverzahnung aufweisen, die mit einer komplementären Plankerbverzahnung an dem Aufnahmekopf zusammenwirkt, wobei vorzugsweise der Außendurchmesser des Mitnehmerteils gleich dem Außendurchmesser des Aufnahmekopfes istThe driver part can also have a plank serration which interacts with a complementary plank serration on the receiving head, the outside diameter of the driving part preferably being equal to the outside diameter of the receiving head
Die Erfindung wird nachstehend anhand einer in der Zeichnung dargestellten Ausführungsform des näheren erläutert In der Zeichnung ist eine Schnittansicht der erfindungsgemaßen Einrichtung gezeigtThe invention is explained below with reference to an embodiment shown in the drawing. The drawing shows a sectional view of the device according to the invention
Ein Rohglas 2 mit optischen Oberflächen 3, 4 und einem Rand 5 ist mit einem Mitnehmerteil 6 verhältnismäßig kleinen Durchmessers in einer üblichen Zentriervorrichtung lagegenau versehen Das Mitnehmerteil 6 weist an der der optischen Oberflache 3 abgewandten Seite einen Mitnehmerschlitz 7 auf, in den eine entsprechende Nase eines Aufnahmekopfs 13 an einer axial verschiebbaren Brillenglashaltewellenhalfte 12 in einer Brillenglasrandbearbeitungsmaschine eingreift Um das Rohglas 2 mit dem Block oder Sauger 6 lagegenau an dem Aufnahmekopf 13 an der Brillenglashaltewelle ansetzen zu können, ist im Schlitz 7 eine desaxierte Bohrung 8 angeordnet, in die ein entsprechender Zapfen an dem Aufnahmekopf 13 eingreiftA raw glass 2 with optical surfaces 3, 4 and an edge 5 is provided with a driver part 6 of relatively small diameter in a conventional centering device. The driver part 6 has a driver slot 7 on the side facing away from the optical surface 3, into which a corresponding nose of a Recording head 13 engages on an axially displaceable spectacle lens holding shaft half 12 in a spectacle lens edge processing machine. Around the raw lens 2 with the block or In order to be able to position the suction cup 6 precisely on the receiving head 13 on the spectacle lens holding shaft, a desaxed bore 8 is arranged in the slot 7, into which a corresponding pin engages on the receiving head 13
Um den Bereich mit dem Schlitz 7 und der Bohrung 8 herum ist eine Plankerbverzahnung 9 angeordnet, die mit einer komplementären Plankerbverzahnung an dem Aufnahmekopf 13 der Brillenglashaltewellenhalfte 12 zusammenwirkt Das Mitnehmerteil 6 haftet mit einem Klebefolienzuschnitt 11 kleinen Durchmessers auf der optischen Oberflache 3 des Rohglases 2 Um die Haftung wahrend der Randbearbeitung zu erhohen, ist das Mitnehmerteil 6 elastisch verformbar aus einem Elastomer oder einem Polyurethan hergestellt und weist gegenüber der hochentspiegelten Oberflache 3 des Rohglases 2 einen hohen Reibwert auf Das Rohglas 2 wird durch axiales Verschieben der Halbwelle 12 mit seiner optischen Oberflache 4 gegen einen Haltekopf 15 an einer koaxialen Halbwelle 14 gepreßtAround the area with the slot 7 and the bore 8, a serration 9 is arranged, which interacts with a complementary serration on the receiving head 13 of the spectacle lens holding shaft half 12. The driver part 6 adheres to the optical surface 3 of the raw glass 2 um with an adhesive film cut 11 of small diameter To increase the liability during the edge processing, the driver part 6 is made elastically deformable from an elastomer or a polyurethane and has a high coefficient of friction compared to the highly reflective surface 3 of the raw glass 2. The raw glass 2 is moved with its optical surface 4 by axially shifting the half-wave 12 pressed against a holding head 15 on a coaxial half shaft 14
Im dargestellten Ausführungsbeispiel weist der Aufnahmekopf 13 im Bereich der Plankerbverzahnung 9 am Mitnehmerteil 6 eine komplementäre Kerbverzahnung auf, so daß hierdurch eine formschlussige Kupplung zwischen dem Mitnehmerteil 6 und dem Aufnahmekopf 13 gewahrleistet ist Aufgrund der von der Halbwelle 12 ausgehenden Axialkraft wird das Mitnehmerteil 6 mittels des Aufnahmekopfs 13 mit seiner AnlageflacheIn the exemplary embodiment shown, the receiving head 13 has a complementary serration in the area of the plank serration 9 on the driver part 6, so that this ensures a form-fitting coupling between the driver part 6 and the receiving head 13 Recording head 13 with its contact surface
10 unter elastischer Verformung vollflachig auf die optische Oberflache 3 gepreßt und haftet im wesentlichen aufgrund der elastischen Verformung des Mitnehmerteils 6 beim Aufsetzen auf das Rohglas 2 saugend auf der optischen Oberflache 3, wahrend der Klebefolienzuschnitt10 pressed over the entire surface under elastic deformation onto the optical surface 3 and adheres essentially due to the elastic deformation of the driver part 6 when placed on the raw glass 2 sucking on the optical surface 3, while the adhesive film cut
11 nur die Anfangshaftung bewirkt, wodurch eine Randbearbeitung ohne Gefahr des Verdrehens oder Verschiebens des Rohglases 2 gegenüber der Brillenglashaltewelle 12, 14 erreichbar ist11 causes only the initial adhesion, whereby edge processing can be achieved without the risk of twisting or shifting the raw lens 2 relative to the spectacle lens holding shaft 12, 14
Anstelle der Kerbverzahnung 9 für eine formschlussige Verbindung zwischen dem Mitnehmerteil 6 und dem Aufnahmekopf 13 kann an dieser Stelle auch eine Kleberschicht vorgesehen sein, die am Mitnehmerteil 6 und/oder am Aufnahmekopf 13 angebracht sein kannInstead of the serration 9 for a positive connection between the driver part 6 and the receiving head 13, an adhesive layer can also be provided at this point, which can be attached to the driver part 6 and / or to the receiving head 13
Anstelle des zentralen Klebefolienzuschnitts 1 1 kann auch ein schmaler Klebefolienring an der Peripherie des Halteteils 6 angebracht sein Instead of the central adhesive film blank 11, a narrow adhesive film ring can also be attached to the periphery of the holding part 6
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19831305.5 | 1998-07-13 | ||
| DE1998131305 DE19831305C2 (en) | 1998-07-13 | 1998-07-13 | Device on a spectacle lens edge processing machine for holding a raw lens rotatably and displaceably |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000003838A1 true WO2000003838A1 (en) | 2000-01-27 |
Family
ID=7873866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1999/004259 Ceased WO2000003838A1 (en) | 1998-07-13 | 1999-06-19 | Device for a spectacle lens edge machining tool for the non-rotational and immobile holding of an uncut glass |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE19831305C2 (en) |
| WO (1) | WO2000003838A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1266723A1 (en) * | 2001-06-15 | 2002-12-18 | ESSILOR INTERNATIONAL Compagnie Générale d'Optique | Blocking means for an ophthalmic optic |
| SG114662A1 (en) * | 2003-12-11 | 2005-09-28 | Optima Inc | Lens blocking system |
| CN110834239A (en) * | 2019-11-21 | 2020-02-25 | 张虎子 | Edge grinding device for optical lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10114238A1 (en) * | 2001-03-22 | 2002-10-02 | Loh Optikmaschinen Ag | Arrangement for blocking and tensioning optical lenses to be processed on the edge, in particular spectacle lenses |
| FR2876609B1 (en) * | 2004-10-20 | 2007-02-16 | Essilor Int | METHOD AND DEVICE FOR LOCKING AN OPHTHALMIC LENS FOR ITS DISTURBANCE |
| CN109531335A (en) * | 2019-01-19 | 2019-03-29 | 安徽精菱玻璃机械有限公司 | A kind of edge polisher grinding head assembly |
| CN115519453A (en) * | 2021-06-25 | 2022-12-27 | 安徽迈明亚克力科技有限公司 | An acrylic plate processing and polishing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4118898A (en) * | 1976-05-18 | 1978-10-10 | Essilor International | Mounting block for mounting a lens in a lens trimming and bevelling machine |
| EP0235543A2 (en) * | 1986-02-27 | 1987-09-09 | Wernicke & Co. GmbH | Device on grinding machines for edging spectacle glasses for mounting a spectacle glass |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2621891C3 (en) * | 1976-05-17 | 1981-03-19 | Dollond and Aitchisen (Services) Ltd., Yardley, Birmingham, West Midlands | Lens edge grinding machine and associated lens holder |
| DE4214242A1 (en) * | 1991-09-05 | 1993-03-18 | Wernicke & Co Gmbh | Machining of spectacle lens edges - has block or suction device to support lens during machining |
| US5462475A (en) * | 1993-02-12 | 1995-10-31 | National Optronics, Inc. | Blocking system for prescription lenses |
-
1998
- 1998-07-13 DE DE1998131305 patent/DE19831305C2/en not_active Expired - Fee Related
-
1999
- 1999-06-19 WO PCT/EP1999/004259 patent/WO2000003838A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4118898A (en) * | 1976-05-18 | 1978-10-10 | Essilor International | Mounting block for mounting a lens in a lens trimming and bevelling machine |
| EP0235543A2 (en) * | 1986-02-27 | 1987-09-09 | Wernicke & Co. GmbH | Device on grinding machines for edging spectacle glasses for mounting a spectacle glass |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1266723A1 (en) * | 2001-06-15 | 2002-12-18 | ESSILOR INTERNATIONAL Compagnie Générale d'Optique | Blocking means for an ophthalmic optic |
| FR2825941A1 (en) * | 2001-06-15 | 2002-12-20 | Essilor Int | DEVICE FOR TIGHTENING AN OPHTHALMIC GLASS |
| SG114662A1 (en) * | 2003-12-11 | 2005-09-28 | Optima Inc | Lens blocking system |
| CN110834239A (en) * | 2019-11-21 | 2020-02-25 | 张虎子 | Edge grinding device for optical lens |
| CN110834239B (en) * | 2019-11-21 | 2021-10-12 | 上海宜山光电科技有限公司 | Edge grinding device for optical lens |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19831305A1 (en) | 2000-01-27 |
| DE19831305C2 (en) | 2001-11-29 |
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