EP0098950A2 - Spectacle glass edge-grinding machine, particularly a portable grinder - Google Patents

Spectacle glass edge-grinding machine, particularly a portable grinder Download PDF

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Publication number
EP0098950A2
EP0098950A2 EP83105224A EP83105224A EP0098950A2 EP 0098950 A2 EP0098950 A2 EP 0098950A2 EP 83105224 A EP83105224 A EP 83105224A EP 83105224 A EP83105224 A EP 83105224A EP 0098950 A2 EP0098950 A2 EP 0098950A2
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EP
European Patent Office
Prior art keywords
rotor
motor
grinding
grinding machine
machine
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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.)
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Application number
EP83105224A
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German (de)
French (fr)
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EP0098950A3 (en
Inventor
Fritz Kötting
Günther Barwasser
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Wernicke and Co GmbH
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Wernicke and Co GmbH
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Publication date
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Publication of EP0098950A2 publication Critical patent/EP0098950A2/en
Publication of EP0098950A3 publication Critical patent/EP0098950A3/en
Withdrawn legal-status Critical Current

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    • 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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor

Definitions

  • the invention relates to a spectacle lens edge grinding machine, in particular a hand grinding machine, with a grinding wheel and a motor driving it.
  • the spectacle lens and the coaxial template are held on the machine upper part, while the grinding wheel is driven in the base frame by a belt drive.
  • the spectacle lens and the template can be held on a bracket mounted in the machine frame, while the grinding wheel with its motor and the transmission means are preferably moved in a straight line on a slide.
  • the grinding wheel with its location is in the base frame stored and driven via a belt drive by a motor in the frame or placed directly on one end of the motor shaft.
  • the object of the invention is to create a structurally simple and inexpensive machine which is space-saving and maintenance-friendly, exhibits favorable behavior during operation and can also be used to carry out additional, preferably manual, grinding operations.
  • the invention provides a spectacle lens edge grinding machine of the type mentioned at the outset, in which the motor is an external rotor motor and the grinding wheel is arranged directly on the rotating rotor or rotor.
  • external rotor motors are used as asynchronous motors with an internal chain part and a rotor or a rotor for driving sound recording and reproducing devices.
  • the rotor or rotor is provided with a pulley, via which the rotary movement is then transmitted to a further part of the device, the advantage of the external rotor motor, namely a large momentum and small speed fluctuations for sound recording and Playback devices are used.
  • the specialist for spectacle lens edge grinding machines had no reference to the idea of the invention to put the grinding wheel and thus the working part of the machine directly on the rotor or rotor.
  • the advantage of the machine according to the invention is that a transmission means such as belts or the like can be dispensed with and the machine is therefore maintenance-friendly and structurally simple. Since the rotor or rotor is integrated directly into the scope of the motor, the entire lens edge grinding machine is very narrow and extremely space-saving. It has a favorable symmetrical arrangement of its rotating head and its ice speed is excellent in grinding. In the free areas can "In the drawing, an embodiment of the invention is shown in side view.
  • the base frame 1 of the machine has a mounting bracket 2, the horizontal web 3 of which is connected to the frame, while the vertical, longer web 4 carries the motor.
  • the motor flange 5 is connected via screw means 6 to the vertical web 4 of the angle 8, so that the motor is arranged on the fly.
  • a two-sided mounting of the motor can also be selected.
  • the asynchronous external rotor motor has the external rotor or rotor 7 with short-circuit winding and the stator C with the power supply unit, which is penetrated by the rotor or rotor shaft 9, which protrudes from the stator on both sides of the motor.
  • the shaft end 10 is guided through a bore 11 of the vertical web 4 of the angle 2.
  • the grinding wheel 13 has a further recess 17 into which a ring 18 is fitted, which holds the grinding wheel while resting on the flange 12 by means of the screws 19 distributed evenly.
  • the concentricity of the rotor or rotor and the grinding wheel can be achieved by suitable means.
  • the shaft end 10 carries a conical machining tool 20, while the end 21 of the shaft 9 is provided with a coupling device 21, with the aid of which another, preferably a flexible shaft, is connected to the shaft 9 of the rotor or rotor 7 - can be.
  • the gap is to keep grinding fluid away from the stator and the short-circuit winding of the rotor or rotor sealed between stator and rotor or rotor in a manner not shown with known means.
  • the external rotor motor accommodates the grinding wheel with its drive in the smallest space and the motor itself offers the possibility of connecting further tools.

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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)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The edge-grinding machine has a grinding disc (13) and a motor (7, 8) which drives the latter. The object of the invention is to provide a constructionally simple and cheap machine which is space-saving and maintenance-friendly, has a beneficial behaviour during operation and can also be used to carry out additional operations, preferably grinding, in particular by hand. For this purpose, provision is made that the motor (7, 8) is an external-rotor motor and the grinding disc (13) is fitted directly on the rotating rotor (7). <IMAGE>

Description

Die Erfindung bezieht sich auf eine Brillenglasrandschleifmaschine, insbesondere Handschleifmaschine, mit einer Schleifscheibe und einem diese antreibenden Motor.The invention relates to a spectacle lens edge grinding machine, in particular a hand grinding machine, with a grinding wheel and a motor driving it.

Bei einer Reihe bekannter automatische- oder halbautomatischer Brillenglasrandschleifmaschinen ist das Brillenglas und die koaxiale Schablone an dem Maschinenoberteil gehalten, während die Schleifscheibe ir Grundrahmen von einem Riementrieb angetrieben ist.In a number of known automatic or semiautomatic spectacle lens edge grinding machines, the spectacle lens and the coaxial template are held on the machine upper part, while the grinding wheel is driven in the base frame by a belt drive.

In Umkehrung dessen kann das Brillenglas und die Schablone an einer im Maschinenrahmen gelagerten elle gehalten sein, während die Schleifscheibe mit ihrem Motor und den Übertragungsmittelm auf einer Schlitter vorzugsweis geradlinig bewegt werden. - Bei bekanner Handschleifraschinen, bei denen das Brillenglas währerd des Schleifens von Hand gehalten wird, ist di Schileifscheibs mit ihrer telle im Grundrahmen gelagert und über einen Riementrieb von einem Motor im Rahmen angetrieben oder aber unmittelbar auf das eine Ende der Motorwelle aufgesetzt.Conversely, the spectacle lens and the template can be held on a bracket mounted in the machine frame, while the grinding wheel with its motor and the transmission means are preferably moved in a straight line on a slide. - In the case of known hand-held grinders, in which the spectacle lens is held by hand during the grinding process, the grinding wheel with its location is in the base frame stored and driven via a belt drive by a motor in the frame or placed directly on one end of the motor shaft.

Diesen bekannten Brillenglasrandschleifmaschinen gegenüber besteht die Aufgabe der Erfindung darin, eine konstruktiv einfache und billige Maschine zu schaffen, die platzsparend und wartungsfreundlich ist, ein günstiges Verhalten beim Betrieb zeigt und mit der auch zusätzliche vorzugsweise Schleifoperationen, insbesondere von Hand, durchführbar sind.Compared to these known spectacle lens edge grinding machines, the object of the invention is to create a structurally simple and inexpensive machine which is space-saving and maintenance-friendly, exhibits favorable behavior during operation and can also be used to carry out additional, preferably manual, grinding operations.

Zur Lösung dieser Aufgabe sieht die Erfindung eine Brillenglasrandschleifmaschine der eingangs genannten Gattung vor, bei der der Motor ein Auβenläufermotor ist und die Schleifscheibe unmittelbar auf dem umlaufenden Läufer oder Rotor angeordnet ist. - Die Merkmale der Unteransprüche dienen der Verbesserung und Weiterentwicklung des Gegenstandes des Hauptanspruchs.To achieve this object, the invention provides a spectacle lens edge grinding machine of the type mentioned at the outset, in which the motor is an external rotor motor and the grinding wheel is arranged directly on the rotating rotor or rotor. - The features of the subclaims serve to improve and develop the subject matter of the main claim.

Im allgemeinen finden Auβenläufermotore als Asynchronmotore mit innenliegendem Ketsteil und Auβäufer oder Rotor zum Antrieb von Schallaufzeichnungs- und Wiedergabegeräten Anwendung. Dabei ist der Läufer oder Rotor mit einer Riemenscheibe versehen, über die dann die Drehbewegung auf einen weiteren Teil der Vorrichtung übertragen wird, wobei der Vorteil des Außenläufermotors, nämlich ein großes Schwungmoment und kleine Drehzahlschwankungen für die Schallaufzeichnung und Wiedergabegeräte genutzt werden. - Von daher hatte der Fachmann für Brillenglasrandschleifmaschinen keine Anlehnung für den Gedanken der Erfindung, die Schleifscheibe und damit den Arbeitsteil der Maschine unmittelbar auf den Läufer oder Rotor zu setzen.In general, external rotor motors are used as asynchronous motors with an internal chain part and a rotor or a rotor for driving sound recording and reproducing devices. The rotor or rotor is provided with a pulley, via which the rotary movement is then transmitted to a further part of the device, the advantage of the external rotor motor, namely a large momentum and small speed fluctuations for sound recording and Playback devices are used. - Therefore, the specialist for spectacle lens edge grinding machines had no reference to the idea of the invention to put the grinding wheel and thus the working part of the machine directly on the rotor or rotor.

Der Vorteil der erfindungsgemäßen Maschine besteht darin, daß auf ein Übertragungsmittel wie Riemen oder dergleichen verzichtet werden kann und somit die Maschine wartungsfreundlich und konstruktiv einfach ist. Da der Läufer oder Rotor unmittelbar in den Umfang des Motors integriert ist, ist die gesamte Brillenglasrandschleifmaschine sehr schmal und äußerst platzsparend. Sie hat eine günstige symmetrisch- Anordnung ihrer drehenden Nasse und hat in vorzüglicher eise ihre konstante Geschwindigkeit bein Schleifen. Auf den freien Flächen können

Figure imgb0001
"Auf der Zeichnung ist ein Ausführungsbeispiel der Erfindung in Seitenansicht dargestellt.The advantage of the machine according to the invention is that a transmission means such as belts or the like can be dispensed with and the machine is therefore maintenance-friendly and structurally simple. Since the rotor or rotor is integrated directly into the scope of the motor, the entire lens edge grinding machine is very narrow and extremely space-saving. It has a favorable symmetrical arrangement of its rotating head and its ice speed is excellent in grinding. In the free areas can
Figure imgb0001
"In the drawing, an embodiment of the invention is shown in side view.

Der Grundrahmen 1 der Maschine weist einen Haltewinkel 2 auf, dessen horizontaler Steg 3 mit dem Rahmen verbunden ist, während der senkrechte, längere Steg 4 den Motor trägt. Hierzu ist der Motorflansch 5 über Schraubmittel 6 mit dem senkrechten Steg 4 des Winkels 8 verbunden, so daß der Motor fliegend angeordnet ist. Ebenso kann eine zweiseitige Lagerung des Motors gewählt werden.The base frame 1 of the machine has a mounting bracket 2, the horizontal web 3 of which is connected to the frame, while the vertical, longer web 4 carries the motor. For this purpose, the motor flange 5 is connected via screw means 6 to the vertical web 4 of the angle 8, so that the motor is arranged on the fly. A two-sided mounting of the motor can also be selected.

Der Asynchron-Außenläufer-Motor weist den Außenläufer oder Rotor 7 mit Kurzschlußwicklung und den Stator C mit dem Netzteil auf, der von der Läufer- oder Rotorwelle 9 durchsetzt wird, die an beiden Seiten des Motors aus dem Stator herausragt. Das Wellenende 10 ist durch eine Bohrung 11 des senkrechten Steges 4 des Winkels 2 geführt.

Figure imgb0002
The asynchronous external rotor motor has the external rotor or rotor 7 with short-circuit winding and the stator C with the power supply unit, which is penetrated by the rotor or rotor shaft 9, which protrudes from the stator on both sides of the motor. The shaft end 10 is guided through a bore 11 of the vertical web 4 of the angle 2.
Figure imgb0002

gegen den die Schleifscheibe 13 mit ihrer Abschnitt 14 anliegt, dem der innere Umfangsteil 15 der Schleifscheibe benachbart ist, der an dem Außenumfang 16 des Läufers oder Rotors 7 anliegt. Die Schleifscheibe 13 weist einen weiteren Rücksprung 17 auf, in den ein Ring 18 eingepaßt ist, der die Schleifscheibe unter Auflage an dem Flansch 12 mittels der gleichmäβγ verteilten Schrauben 19 hält. Durch geignete Mittel kann die Rundlaufgenauigkeit des Läufers oder Rotors und der Schleifscheibe erzielt werden.against which the grinding wheel 13 bears with its section 14, which is adjacent to the inner peripheral part 15 of the grinding wheel, which bears against the outer circumference 16 of the rotor or rotor 7. The grinding wheel 13 has a further recess 17 into which a ring 18 is fitted, which holds the grinding wheel while resting on the flange 12 by means of the screws 19 distributed evenly. The concentricity of the rotor or rotor and the grinding wheel can be achieved by suitable means.

Das "ellenende 10 trägt in dargestelltem Beispiel ein konisches Bearbeitungswerkzeug 20, während das Ende 21 der Welle 9 mit einer Kupplungsvorrichtung 21 versehen ist, mit deren Hilfe ein weiteres erhzoug, vorzugsweise eine biegsame Welle as, er die Well 9 des Aufenläufers oder Rotors 7 angeschlos- sen werden kann.In the example shown, the shaft end 10 carries a conical machining tool 20, while the end 21 of the shaft 9 is provided with a coupling device 21, with the aid of which another, preferably a flexible shaft, is connected to the shaft 9 of the rotor or rotor 7 - can be.

Um Schleifflüssigkeit von dem Stator und der Kurzschlußwicklung des Läufers oder Rotors fernzuhalten, ist der Spalt zwischen Stator und Läufer oder Rotor in nicht dargestellter Weise mit bekannten Mitteln abgedichtet.The gap is to keep grinding fluid away from the stator and the short-circuit winding of the rotor or rotor sealed between stator and rotor or rotor in a manner not shown with known means.

Aus Vorstehendem ist erkennbar, daß der Außenläufer-Motor die Schleifscheibe mit ihrem Antrieb auf kleinstem Raum unterbringt und der Motor selbst die Möglichkeit des Anschlusses weiterer Werkzeuge bietet.From the above it can be seen that the external rotor motor accommodates the grinding wheel with its drive in the smallest space and the motor itself offers the possibility of connecting further tools.

Claims (4)

1) Brillenglasrandschleifmaschine, insbesondere Handschleifmaschine, mit einer Schleifscheibe (13) und einem diese antreibenden Motor (7, 3), dadurch gekennzeichnet, daß der Motor (7, 8 ) ein Außenläufermotor ist und die Schleifscheibe (13) unmittelbar auf dem umlaufenden Läufer oder Rotor (7) angeordnet ist.1) spectacle lens edge grinding machine, in particular hand grinding machine, with a grinding wheel (13) and a motor driving this (7, 3), characterized in that the motor (7, 8) is an external rotor motor and the grinding wheel (13) directly on the rotating rotor or Rotor (7) is arranged. 2) Brillenglasrandschleifmaschine nach Anspruch 1, dadurch gekennzeichnet, daß der Läufer oder Rotor (7) mit einer den Spalt zwischen Stator (?) und Läufer oder Rotor (7) überragenden Abdeckung versehen ist.2) spectacle lens edge grinding machine according to claim 1, characterized in that the rotor or rotor (7) with a gap between the stator (?) And rotor or rotor (7) is provided with a cover. 3) Prillenglasrandscheifmaschine nach Anspruch 1 und 9, dadurch gekennzeichnet, da3 die Läufer- oder Rotorwelle (9) an einem Ende eine Kupplungsvorrichtung (21) zum Anschluß einer biegsamen Welle (22) od. dgl. aufweist.3) Prillenglasrandscheifmaschine according to claim 1 and 9, characterized in that the rotor or rotor shaft (9) at one end has a coupling device (21) for connecting a flexible shaft (22) or the like .. 4) Brillenglasrandsoheifmaschine nach Anspruch 1 und einer. der Ansprüche 2 und 3, dadurch gekennzeichnet, daß die Läufer- oder Rotorwelle (9) an einem Ende ein weiteres scheiben-, ring- oder konusartiges Werkzeug (20) trägt.4) Eyeglass lens edge curing machine according to claim 1 and one. of claims 2 and 3, characterized in that the rotor or rotor shaft (9) carries at one end a further disk, ring or cone-like tool (20).
EP83105224A 1982-06-12 1983-05-26 Spectacle glass edge-grinding machine, particularly a portable grinder Withdrawn EP0098950A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3222233 1982-06-12
DE19823222233 DE3222233A1 (en) 1982-06-12 1982-06-12 EYEWEAR EDGE GRINDING MACHINE, IN PARTICULAR HAND GRINDING MACHINE

Publications (2)

Publication Number Publication Date
EP0098950A2 true EP0098950A2 (en) 1984-01-25
EP0098950A3 EP0098950A3 (en) 1984-02-22

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EP83105224A Withdrawn EP0098950A3 (en) 1982-06-12 1983-05-26 Spectacle glass edge-grinding machine, particularly a portable grinder

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EP (1) EP0098950A3 (en)
JP (1) JPS591146A (en)
DE (1) DE3222233A1 (en)
ES (1) ES522712A0 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0589628A1 (en) * 1992-09-25 1994-03-30 Berkshire Ophthalmic Laboratories Limited Grinding apparatus
WO2008080460A1 (en) * 2006-12-21 2008-07-10 Brinkmann Gmbh Device and method for the machine processing of a material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2562830B1 (en) * 1984-04-11 1988-04-08 Essilor Int GRINDING MACHINE FOR MANUAL GRINDING OF GLASSES AND GRINDING MACHINES EQUIPPED WITH SUCH A MACHINE
IT233864Y1 (en) * 1994-07-14 2000-02-10 Zagato Luciano EQUIPMENT FOR CUTTING ADDITIONAL, COLORED AND / OR POLARIZED LENSES, TO BE MOUNTED ON EYEGLASSES WITH VISIBLE LENSES

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE223436C (en) *
DE336861C (en) * 1919-03-01 1921-05-17 Eugen Lauer Schmaltz Dipl Ing Grinding motor for any type of current
DE885667C (en) * 1951-09-11 1953-08-06 Anton Dieser Transportable, electrically operated grinding and sharpening device
DE1679791U (en) * 1951-12-22 1954-07-15 Rieger Geb ELECTRIC STIRRER.
AT180985B (en) * 1953-11-18 1955-02-10 Richard Dudek External armature motor, in particular for soil cultivation machines
GB1420502A (en) * 1973-05-07 1976-01-07 Raphaels Ltd Lens edging machine
DE7913844U1 (en) * 1979-05-14 1979-08-16 Wernicke & Co Gmbh, 4000 Duesseldorf EYEGLASSES GRINDING MACHINE

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE223436C (en) *
DE336861C (en) * 1919-03-01 1921-05-17 Eugen Lauer Schmaltz Dipl Ing Grinding motor for any type of current
DE885667C (en) * 1951-09-11 1953-08-06 Anton Dieser Transportable, electrically operated grinding and sharpening device
DE1679791U (en) * 1951-12-22 1954-07-15 Rieger Geb ELECTRIC STIRRER.
AT180985B (en) * 1953-11-18 1955-02-10 Richard Dudek External armature motor, in particular for soil cultivation machines
GB1420502A (en) * 1973-05-07 1976-01-07 Raphaels Ltd Lens edging machine
DE7913844U1 (en) * 1979-05-14 1979-08-16 Wernicke & Co Gmbh, 4000 Duesseldorf EYEGLASSES GRINDING MACHINE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0589628A1 (en) * 1992-09-25 1994-03-30 Berkshire Ophthalmic Laboratories Limited Grinding apparatus
WO2008080460A1 (en) * 2006-12-21 2008-07-10 Brinkmann Gmbh Device and method for the machine processing of a material

Also Published As

Publication number Publication date
DE3222233A1 (en) 1983-12-15
ES8402743A1 (en) 1984-03-01
ES522712A0 (en) 1984-03-01
JPS591146A (en) 1984-01-06
EP0098950A3 (en) 1984-02-22

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