EP1100651A1 - Grinding machine for edges of spectacles lenses - Google Patents
Grinding machine for edges of spectacles lensesInfo
- Publication number
- EP1100651A1 EP1100651A1 EP99932736A EP99932736A EP1100651A1 EP 1100651 A1 EP1100651 A1 EP 1100651A1 EP 99932736 A EP99932736 A EP 99932736A EP 99932736 A EP99932736 A EP 99932736A EP 1100651 A1 EP1100651 A1 EP 1100651A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spectacle lens
- grinding machine
- grinding
- machine according
- edge grinding
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
- B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
- B24B9/146—Accessories, e.g. lens mounting devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
Definitions
- the invention relates to an eyeglass lens grinding machine with at least one grinding wheel and a rotatable eyeglass lens holding shaft which can be adjusted radially and axially relative to the grinding disk.
- Functional carriers can be integrated in such eyeglass lens grinding machines in order to carry out additional functions, for example measuring functions or additional processing steps, for the edge processing of eyeglass lenses
- a lens processing machine with two coaxial half-shafts for holding and rotating an eyeglass lens, a grinding spindle arranged parallel to the half-shafts and with its bearing housing radially and axially movable with a pre-grinding and finishing grinding wheel for grinding of the spectacle lens circumference, possibly with a groove for grinding a roof facet and a shaping chisel arranged on the bearing housing and its radial and axial movement relative to the half-waves with the spectacle lens, or a processing tool rotating about an axis running radially to the spectacle lens for producing a groove or spectacles in the spectacle lens circumference and / or for chamfering the edges of the spectacle lens circumference.
- the processing tool is arranged next to the grinding wheel, so that the spectacle lens to be machined is axially and radially must be moved into the area of this machining tool
- the eyeglass lens grinding machines described in these publications can be provided with a cross slide guide for the grinding wheels with their drive, but it is also possible to use eyeglass lens grinding machines in which the grinding wheels only rotate, but are otherwise stationary, while the eyeglass lens holding shafts are mounted so that they can move radially and axially with respect to the grinding wheels .
- EP 0 820 837 A1 describes an eyeglass lens edge grinding machine which has a set of grinding wheels arranged on a shaft and a raw glass holding device.
- the raw glass can be brought into contact with the grinding wheels by means of the raw glass holding device.
- the machine also comprises an additional grinding wheel which is mounted on a carrier is freely rotatable
- the carrier is pivotable about an axis parallel to the grinding wheel shaft on a housing part of the spectacle lens edge grinding machine and can be operated in such a way that the additional grinding wheel is between a swung-out rest position and a swung-in working position in which the axis of rotation of the additional grinding wheel is parallel to the axis the shaft runs and in which the additional grinding wheel is in drive contact with a drive wheel which is arranged on the grinding wheel set, moves.
- a drilling tool can be mounted on the shaft for the additional grinding wheel n brought, so that it is possible with this arrangement to chamfer the shape-ground spectacle lens, to provide it with a circumferential groove or with holes.
- This known device can only be used on spectacle lens edge grinding machines in which the relative movement between the spectacle lens to be machined and the grinding wheel package is controlled accordingly Bracket for the raw glass is effected. Use on an eyeglass lens grinder with a Cross slide guidance for the grinding wheel package is not possible.
- this known arrangement requires a complex adaptation of the housing of the spectacle lens edge grinding machine and a corresponding configuration of the swivel drive for the additional grinding wheel
- the invention is based on the problem of equipping a spectacle lens edge grinding machine of the type mentioned at the outset with additional functions which can be easily integrated into the spectacle lens edge grinding machine and controlled by means of the control of the spectacle lens edge grinding machine
- an eyeglass lens grinding machine of the type mentioned at the outset that, according to the invention, it is arranged at least one coaxially rotatable on a bearing neck for a shaft of the grinding wheel or at least one pivot lever arranged on a bearing neck for a shaft of the grinding wheel in the region between the grinding wheel and the spectacle lens holding shaft has pivotable function carrier
- the invention is based on the consideration that additional movements of the spectacle lens in order to carry out certain additional functions should be avoided in order to limit the necessary paths of the spectacle lens to the extent required for the shaping and that it is easier in terms of control technology and mechanics to place a function holder in the Swivel in the area in which the lens is anyway for processing the shape
- the function holder can be arranged on an already existing splash guard which closely surrounds the grinding wheel with the exception of the grinding area
- the function carrier is arranged approximately in the middle of the grinding wheel, preferably in the plane of a facet groove of a facet grinding wheel, the axial movements of the spectacle lens over the grinding wheel can be restricted to the path required for shaping, which does not need to be greater than the width of the grinding wheel or a grinding wheel package from rough and finish grinding wheels
- the path restrictions are less significant, in particular if it is a spectacle lens edge grinding machine with a column guide on which a machine upper part is attached is arranged with an eyeglass lens support shaft movable up and down and pivotable
- a functional support on the splash guard or on a swivel lever can have a swivel-in, U-shaped area with radially protruding legs, the legs acting as stops when measuring and storing the front and rear space curves and, if necessary, the thickness of an eyeglass lens clamped in the eyeglass lens holding shaft in accordance with the radial Contour course in a plane substantially perpendicular to the optical axis. Furthermore, this U-shaped area can also be used for measuring and storing the radius values of the spectacle lens if the web connecting the legs is used as a support during the touching measurement
- mutually facing probe tips can be arranged on the inside of the legs, which only touch the front and back of the glasses point by point.
- the U-shaped area can serve as a function carrier for another function by Abrasive tools facing away from one another are attached to the outside of the legs. These abrasive tools are used for chamfering the front and rear edges of an eyeglass lens. This is particularly necessary in the case of plastic eyeglass lenses, the edges of which are extremely sharp when shaped
- the function carrier can furthermore have a swivel-in tool for making grooves on the circumference of the shaped spectacle lens.
- This tool can be designed as a fixed shaping tool or as a high-speed rotating milling or grinding tool of small diameter, as described in DE 43 08 800 C2 by the same applicant
- the function carrier can have a swivel-in tool for making holes or grooves on the spectacle lens for fastening spectacle frame parts.
- a further possibility for an additional function is provided by a swivel-in labeling device for labeling the spectacle lens
- the functional supports can be angularly spaced from one another with respect to the pivot axis. In this case, the functional supports reach the area between the grinding wheel and the spectacle lens holding shaft at different angular positions
- the function carriers can be spaced radially from one another with respect to the pivot axis, so that they can be brought into effect by changing the radial distance of the spectacle lens holding shaft from the grinding wheel.
- the tool for making grooves and / or the tool can be used for making holes or grooves and / or the labeling device in
- the area of the web of the U-shaped area and the probe tips and the grinding tools for this purpose can be arranged radially spaced apart at the ends of the legs
- the probe tip can preferably have the same axial spacings on both sides of the facet groove and the tool for making grooves can be arranged radially in the plane of the facet groove, since in such a spectacle lens edge grinding machine the axes of the grinding wheel shaft and the spectacle lens holding shaft run essentially parallel to one another when a If the lens held in the lens holding shaft is aligned centrally to the facet groove, then there are angular errors when measuring the front and rear space curve as well lowest when making grooves These angular errors can possibly be taken into account arithmetically by the CNC control of such a spectacle lens edge grinding machine
- Fig. 1 is a perspective view of a lens grinder for
- FIG. 2 to 4 different views of a second embodiment of
- FIG. 1 An eyeglass lens edge grinding machine is shown schematically and in perspective in FIG. 1, of which a machine lower part 1 is drawn, in which the entire mechanical and electrical system for carrying out the grinding process and for controlling the same are arranged.
- a grinding wheel package 2 comprising a central fine grinding wheel 68 with a facet groove 69 and on both sides arranged pre-grinding wheels 70, 71, one of which is intended for pre-grinding silicate glasses and the other for pre-grinding plastic glasses, is mounted with its grinding spindle 18 in the machine base 1 and is rotated by an electric motor (not shown) via a drive belt 20 and a pulley 19 in rapid rotation offset
- the facet groove 69 of the fine grinding wheel 68 lies flush with a guide column 17, represented only by its axis, for a machine upper part 3 such that an axis 45 of a spectacle lens holding shaft 6, 7 when grinding the roof facet of a spectacle lens 9 in a middle position is essentially parallel to an axis 44 of the grinding wheel package 2.
- the machine upper part 3 can be pivoted and moved up and down about the vertical axis of the guide column 17.
- a machine upper part housing 4 covers the machine upper part 3 and its side arms 5.
- In the side arms 5 are a half-shaft 6 and a half-shaft 7 are mounted coaxially and can be set into slow rotation by means of a drive (not shown).
- the half-shafts 6, 7 are used to clamp an eyeglass lens blank 9 by means of a block or suction device 10, whereby the eyeglass lens blank 9 is brought into readiness for the peripheral shape grinding
- the half waves 6, 7 thus form the spectacle lens holding shaft for the spectacle lens blank 9
- the one half shaft 6 is axially displaced, for example by means of an actuation button 8. It is also possible to provide a controllable drive for the axial displacement of the half shaft 6
- a grinding chamber 12 is arranged, which encloses the area of the half shafts 6, 7 between the arms 5 and the grinding wheel package 2.
- the grinding chamber is essentially parallelepipedic with sealed bushings for the half shafts 6, 7 and the grinding spindle 18 and designed with a hinged lid 14
- the grinding chamber 12 and a cooling liquid drain 13 arranged at the lower part of the grinding chamber 12 protrude for the most part into a recess 11 of the machine lower part 1, the cooling liquid drain 13 being introduced into a funnel-shaped collecting trough 67 in the machine lower part 1, from where the Cooling fluid flows into a collecting container, not shown, for further processing
- a bellows 21 is arranged, which is tightly connected to the side wall of the grinding chamber 12 and the grinding spindle 18, but the grinding chamber 12 has sufficient freedom of movement relative to the grinding spindle 18 there in the direction of arrows 23, 24 in the
- the grinding chamber 12 is closed by means of the transparent hinged cover 14, which is articulated on the upper wall of the grinding chamber 12 by means of a hinge 15 and can be folded up into the open position by engaging a handle 16
- the vertical up and down movement in the direction of arrow 23 is effected by a CNC control (not shown), as a result of which the machine upper part 3 and thus the spectacle lens holding shaft 6, 7 with a clamped spectacle lens 9 perform a movement corresponding to the spectacle lens contour to be ground
- the likewise CNC-controlled pivoting about the vertical axis of the guide column 17 according to the arrow 24 has the effect that the spectacle lens blank 9 can be moved back and forth across the width of the grinding wheel 70 or 71.
- this uniform back and forth movement serves for uniform wear to reach the cylindrical pre-grinding discs 70, 71.
- this controlled movement can be used to implement the spectacle lens blank 9 into the facet groove 69 of the fine grinding disc 68 after finishing the pre-grinding and to grind a roof facet onto the shape-ground spectacle lens 9
- This facet grinding can be carried out as free grinding if the shape-ground spectacle lens can dip into the facet groove 69 with its entire width, so that the circumferential contour of the shape-ground spectacle lens determines the course of the roof facet
- a further coolant liquid supply is arranged on the rear wall of the grinding chamber 12 and ensures that the grinding chamber is wetted flat Back wall at least corresponding to the width of the grinding wheel package 2 in the manner of a liquid curtain. This causes the grinding abrasion to be unwound when grinding plastic glasses, and no lumps that are difficult to remove and disrupt the grinding process can form since the grinding chamber 12 is closed on all sides with the outlet 13 being drained no cooling liquid and no grinding abrasion during the grinding process from the grinding chamber
- the cooling liquid is rather led via the drain 13 to a separator, not shown, where the grinding abrasion is separated from the cooling liquid if the nozzles mentioned are fresh water as cooling water supplied, the cooling water freed from grinding abrasion can be fed directly into the sewage system.
- a separator not shown
- additives to the cooling liquid e.g. B corrosion-preventing and foam-removing additives
- the machine upper part 3 with the housing 4 can be arranged in a hood, not shown, which can also accommodate the CNC control for the spectacle lens edge grinding machine and can have a screen and a keyboard for entering data and commands on a front wall
- This spectacle lens edge grinding machine is characterized by a simple column guide for the Upper part of the machine or the grinding wheel with drive, whereby both the guide rail and the drives are protected by the grinding chamber 12 surrounding the spectacle lens holding shaft 6, 7 and the grinding wheel 2 against cooling liquid spraying off from the rotating grinding wheel 2 and the machine is not contaminated by grinding abrasion
- the drives for lifting / creating and swiveling the machine upper part 3 can be integrated into the machine in a space-saving and functional manner, which ensures a high level of functional reliability and accuracy when machining the edge of the spectacle lens, but the machine is simple and robust and can be produced inexpensively
- Function carriers can be integrated into the spectacle lens edge grinding machine described above, which are described below with reference to FIGS. 2 to 8. Such function carriers can be used to determine the front and rear spatial curve and, if necessary, the thickness of a spectacle lens in accordance with the radial contour profile in an optical axis to measure the essential vertical plane and to store the determined data, for example to determine the course of a roof facet on the circumference of the shaped lens and, if necessary, to carry out regrinding if deviations in the shape of the lens are measured. chamfering the edges of a shape-ground spectacle lens, making grooves on the circumference of a shape-ground spectacle lens, or providing the shape-ground spectacle lens with holes or grooves for attaching spectacle frame parts. Also labeling n of a spectacle lens by means of such a functional support is possible
- FIGS. 2 to 4 show a first embodiment of functional supports 32, 40, which are arranged at an angular spacing with respect to a pivot axis 37 of a pivot lever 31.
- the pivot axis 37 of the pivot lever 31 is desaxed with respect to the axis 44 of the grinding wheel shaft 18 on a holder 38.
- the holder 38 is clamping attached to a bearing neck 30 for the grinding wheel shaft 18 to one on the swivel lever
- the pivot lever 31 is in the position shown in FIG. 4, so that the area of the grinding wheels 68, 70, 71 where the contact with the eyeglass lens 9 takes place during exposure is exposed, while the rest Areas of the grinding wheels 68, 70, 71 are covered by a splash guard 42 If the front and rear space curves 25, 26 of the spectacle lens 9 are to be measured, the swivel lever 31 is moved into the position shown in FIGS. 2 and 3 by means of the swivel drive acting on the shaft 39 pivoted and the spectacle lens 9 brought into the position shown in FIG.
- the spectacle lens 9 is brought into contact with the left probe tip 35 with slight pressure and rotated by one turn CNC control described the radial distance between the axis 44 of the grinding wheel package 2 and the axis 45 of the spectacle lens holding shaft 6, 7 changed according to the circumferential contour of the spectacle lens, so that the spectacle lens describes a path with reference to the left probe tip 35, which corresponds to the circumferential contour occurring pivoting movement of the machine head according to the P File 24 is recorded via the angle encoder mentioned, but not shown, and, in conjunction with the values of the peripheral contour, results in a data record to be stored for the front space curve 25
- the spectacle lens 9 is brought into contact with the right probe tip 35 and the process is repeated. This scanning of the space curve can take place both on an already shaped spectacle lens and on a circular raw lens in the manner described
- the radius values of the spectacle lens 9 - also in this case in the case of a circular raw lens or a shape-ground spectacle lens - can be determined by placing the raw lens with its circumference on the web 34 and rotating it by one revolution.
- the resulting movement of the machine head part 3 corresponds to the arrow 23 along the axis of the guide column 17 is recorded by means of a displacement sensor, not shown, and in connection with the rotation of the lens holding shaft 6, 7, which is recorded by an angle encoder, results in a data record for the radius values of the lens 9, which is also with the CNC control the spectacle lens edge grinding machine is saved
- the spectacle lens 9 is transferred to the chamfering tools 36.
- These chamfering tools preferably consist of diamond grinding elements with a conical surface.
- the spectacle lens 9 is rotated accordingly to chamfer the edge 26 on the left chamfering tool 36
- the pivot lever 31 is pivoted further, so that a high-speed drive motor 40 with a milling or grinding tool 41 of small diameter in a position that corresponds to the position shown in FIG. 6 In this position, the spectacle lens 9 can be CNC-controlled in the area of the milling or grinding tool 41 and a groove in the Work in the outer circumference of the lens 9
- the U-shaped region 32 and the drive motor 40 with the milling or grinding tool 41 spaced apart on the pivot lever 31 it is also possible to fasten the drive motor 40 between the legs 33 on the web 34 .
- the legs 33 must be extended so far that on the one hand the front and rear spatial curves 25, 26 of the spectacle lens 9 can be measured without getting into the area of the milling or grinding tool 41, while on the other hand by assimilating the spectacle lens 9 the milling or grinding tool 41 enables a circumferential groove to be made
- pivoting levers 28, 29 which are movable in opposite directions are pivotably arranged about the pivot axis 37 mounted, which has an actuating lever 43 which interacts with an actuating projection 46 on the pivot lever 28 and on an actuating projection 47 on the pivot lever 29.
- the actuating lever 43 By rotating the shaft 39, the actuating lever 43 can be pivoted and the pivot levers 28, 29 can be brought into a position alternately, in which the functional support 32, ie the U-shaped area on the swivel lever 28 or the functional support 40, ie the drive motor 40 with the milling or grinding tool 41 on the swivel lever 29, can be brought into the area of the spectacle lens 9 on the spectacle lens support shaft 6, 7 5 and 6 is the drive motor 40 with the milling or grinding tool 41 in the area of the glasses 7, the pivot levers 28, 29 are shown in the pivoted-out position in which the functional supports 32, 40 are located outside the region of the spectacle lens 9 clamped in the spectacle lens holding shaft 6, 7
- the machine upper part 3 with the spectacle lens 9 performs a pivoting movement according to the arrow 24 both when measuring the front and rear spatial curve 25, 26 and when making a circumferential groove by means of the milling or grinding tool 41, it is important that the probe tips on the function carrier 32 35 have the same distance on both sides of the facet groove 69 and that the milling or grinding tool 41, as shown in FIG.
- the swivel drive for the machine upper part 3 can have a magnetic coupling, the transmissible torque of which is adaptable to the respective operation or measuring process in the sense that the transmitted torque is high when a facet is controlled and is low when measuring the front and rear space curves 25, 26 and when chamfering
- the splash guard 42 is pivotally mounted on the bearing neck 30 by means of the holder 38 and, on the one hand, carries a U-shaped area 32 as the first function carrier with radially projecting legs 33 which are connected via the web area 34 and the probe tips 35 as well as the chamfering tool 36 and, on the other hand, a function carrier designed as a drive motor 40, which is angularly spaced from the function carrier 32.
- a drive motor 40 Arranged on this drive motor 40 is a radial milling or grinding tool 41 which, as already described with reference to FIGS.
- FIG. 2 to 7 serves to make a groove on the circumference of a spectacle lens 9, while additionally axially parallel to the axis 44 of the grinding wheel shaft
- Another milling or grinding tool 49 is arranged, which is used to make holes or grooves on a spectacle lens.
- Such bores or grooves are used to fasten spectacle frame parts, such as temples and nose bridge.
- a spectacle lens held by the spectacle lens holding shaft 6, 7 can be brought into the area of the milling or grinding tool 49 in a CNC-controlled manner in order to then be processed in the manner described.
- the splash guard 43 is rotated about the axis 44 by means of a drive (not shown).
- the splash guard 42 is connected to the holder 38 via ring segments 48, between which the grinding wheels 68, 70, 71 are arranged.
- the functional supports 32, 40 not radially offset, but radially offset, on the splash guard 42
Landscapes
- 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
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19834748A DE19834748A1 (en) | 1998-08-01 | 1998-08-01 | Spectacle lens edge grinding machine |
DE19834748 | 1998-08-01 | ||
PCT/EP1999/004444 WO2000007770A1 (en) | 1998-08-01 | 1999-06-26 | Grinding machine for edges of spectacles lenses |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1100651A1 true EP1100651A1 (en) | 2001-05-23 |
EP1100651B1 EP1100651B1 (en) | 2002-04-03 |
Family
ID=7876115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99932736A Expired - Lifetime EP1100651B1 (en) | 1998-08-01 | 1999-06-26 | Grinding machine for edges of spectacles lenses |
Country Status (4)
Country | Link |
---|---|
US (2) | US7137871B2 (en) |
EP (1) | EP1100651B1 (en) |
DE (2) | DE19834748A1 (en) |
WO (1) | WO2000007770A1 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3839185B2 (en) † | 1999-04-30 | 2006-11-01 | 株式会社ニデック | Eyeglass lens processing equipment |
DE10114239A1 (en) | 2001-03-22 | 2002-10-02 | Loh Optikmaschinen Ag | Device for edge processing of optical lenses |
DE10255058A1 (en) | 2002-11-25 | 2004-06-17 | Loh Optikmaschinen Ag | Process and device for edge processing of an optical lens made of plastic and combination tool therefor |
JP4841269B2 (en) * | 2006-02-28 | 2011-12-21 | 株式会社ニデック | Eyeglass lens processing equipment |
US7977076B2 (en) * | 2006-12-29 | 2011-07-12 | Genifuel Corporation | Integrated processes and systems for production of biofuels using algae |
JP4975469B2 (en) * | 2007-02-02 | 2012-07-11 | 株式会社ニデック | Eyeglass lens processing equipment |
JP5405720B2 (en) * | 2007-03-30 | 2014-02-05 | 株式会社ニデック | Eyeglass lens processing equipment |
FR2941310B1 (en) * | 2009-01-21 | 2011-01-21 | Essilor Int | DEVICE FOR MACHINING AN OPHTHALMIC LENS |
JP5976270B2 (en) * | 2010-09-30 | 2016-08-23 | 株式会社ニデック | Eyeglass lens processing equipment |
JP6236787B2 (en) * | 2013-01-17 | 2017-11-29 | 株式会社ニデック | Eyeglass lens processing equipment |
CN103522173A (en) * | 2013-09-29 | 2014-01-22 | 新昌县大成自动化设备有限公司 | Full-automatic inner diameter grinding machine of machine tool elastic chuck |
US9579737B1 (en) * | 2014-10-28 | 2017-02-28 | Myers Precision Grinding Company | Methods for threading a ceramic work piece with a grind wheel |
US20180236456A1 (en) * | 2015-09-09 | 2018-08-23 | Flsmidth A/S | Seal For A Comminution Apparatus |
DE102015120853B3 (en) * | 2015-12-01 | 2017-04-27 | Friedrich-Schiller-Universität Jena | Method and device for producing an optical component having at least three monolithically arranged optical functional surfaces and optical component |
CN111716222B (en) * | 2020-06-17 | 2021-12-03 | 威海仁昌电子有限公司 | Electronic components foot cleaning equipment that polishes |
CN112454165B (en) * | 2020-11-11 | 2022-10-04 | 池州市华盛玻璃有限公司 | Simple glass chamfering machine |
CN115519432A (en) * | 2022-09-29 | 2022-12-27 | 惠州市富丽电子有限公司 | Special-shape grinding processing technology for polaroid |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3105100C2 (en) * | 1981-02-12 | 1984-04-12 | Hoya Lens Corp., Tokyo | Machine for grinding a groove in the peripheral surface of an out-of-round spectacle lens |
GB8412423D0 (en) * | 1984-05-16 | 1984-06-20 | Allied Colloids Ltd | Polymeric compositions |
DE8706215U1 (en) * | 1987-04-30 | 1988-09-01 | Wernicke & Co GmbH, 4000 Düsseldorf | Lens edging machine with at least one facet grinding wheel |
GB8816182D0 (en) * | 1988-07-07 | 1988-08-10 | Berkshire Ophthalmic Lab Ltd | Method & apparatus for grinding lenses |
US5053971A (en) * | 1989-08-30 | 1991-10-01 | Gerber Optical, Inc. | Method and apparatus for edging an optical lens |
US5249627A (en) * | 1992-03-13 | 1993-10-05 | Halliburton Company | Method for stimulating methane production from coal seams |
JPH0639697A (en) * | 1992-04-14 | 1994-02-15 | Wernicke & Co Gmbh | Processing machine for eyeglass lens edge |
DE4308800C2 (en) | 1992-04-14 | 1994-08-18 | Wernicke & Co Gmbh | Spectacle lens edging machine |
DE19616572C2 (en) | 1995-08-26 | 1998-03-26 | Wernicke & Co Gmbh | Method and device for measuring a spectacle frame or a spectacle lens or a shaped pane |
FR2751256B1 (en) * | 1996-07-22 | 1998-12-31 | Briot Int | OPTICAL GLASS GRINDING MACHINE |
EP0925147B1 (en) * | 1996-09-04 | 2001-02-28 | Wernicke & Co. GmbH | Polishing machine for spectacle lenses |
DE19643546C2 (en) * | 1996-10-24 | 1998-08-06 | Wernicke & Co Gmbh | Additional wheel-driven grinding spindle for chamfering the edges of lenses on a lens processing machine |
JPH10277903A (en) * | 1997-03-31 | 1998-10-20 | Nidek Co Ltd | Glasses lens layout input device and lens grinding machine |
JPH10328993A (en) * | 1997-05-26 | 1998-12-15 | Topcon Corp | Shape of lens measuring device |
JP4162332B2 (en) * | 1999-07-07 | 2008-10-08 | 株式会社ニデック | Eyeglass lens processing equipment |
DE60038459T2 (en) * | 1999-08-06 | 2009-04-23 | Hoya Corp. | GLASS GLASS LENS MACHINING METHOD AND DEVICE |
CN1188249C (en) * | 2001-01-22 | 2005-02-09 | 株式会社拓普康 | Initial position setting method for grinding device and milling device thereof |
US6488091B1 (en) * | 2001-06-11 | 2002-12-03 | Halliburton Energy Services, Inc. | Subterranean formation treating fluid concentrates, treating fluids and methods |
-
1998
- 1998-08-01 DE DE19834748A patent/DE19834748A1/en not_active Withdrawn
-
1999
- 1999-06-26 EP EP99932736A patent/EP1100651B1/en not_active Expired - Lifetime
- 1999-06-26 WO PCT/EP1999/004444 patent/WO2000007770A1/en active IP Right Grant
- 1999-06-26 DE DE59901143T patent/DE59901143D1/en not_active Expired - Fee Related
-
2004
- 2004-12-23 US US11/020,533 patent/US7137871B2/en not_active Expired - Fee Related
-
2006
- 2006-11-20 US US11/561,698 patent/US7338347B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0007770A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19834748A1 (en) | 2000-02-10 |
US20050107002A1 (en) | 2005-05-19 |
WO2000007770A1 (en) | 2000-02-17 |
US20070077863A1 (en) | 2007-04-05 |
US7338347B2 (en) | 2008-03-04 |
US7137871B2 (en) | 2006-11-21 |
DE59901143D1 (en) | 2002-05-08 |
EP1100651B1 (en) | 2002-04-03 |
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