US20070173182A1 - Jig for cnc machine - Google Patents
Jig for cnc machine Download PDFInfo
- Publication number
- US20070173182A1 US20070173182A1 US10/568,844 US56884404A US2007173182A1 US 20070173182 A1 US20070173182 A1 US 20070173182A1 US 56884404 A US56884404 A US 56884404A US 2007173182 A1 US2007173182 A1 US 2007173182A1
- Authority
- US
- United States
- Prior art keywords
- lenses
- lens
- carriage
- axis
- jig
- 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.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/28—Drill jigs for workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/005—Blocking means, chucks or the like; Alignment devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
- B28D1/143—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling lens-drilling machines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
- Y10T29/5104—Type of machine
- Y10T29/5105—Drill press
- Y10T29/5107—Drilling and other
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/52—Cutting by use of rotating axially moving tool with work advancing or guiding means
- Y10T408/54—Means to intermittently advance work
- Y10T408/545—Rotary, work-supporting means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/30—Milling
- Y10T409/30868—Work support
- Y10T409/30896—Work support with angular adjustment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Drilling And Boring (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
A jig for mounting one or more lenses on a two axes coordinate movement bed of a CNC machine for machining the one or more lenses. The jig comprises a carriage (29) having one or more lens holders (36) for holding one or more lenses (13, 14), each lens having a mounting block (19) bonded to a convex surface of the lens (43). The carriage (29) is rotatable about a first axis so as to be able to present one or more lenses (13, 14) to a tool of the machine where it is desired to machine the one or more lenses (13, 14). The lens is constrained to restrict rotation of the one or more lenses about an axis normal to the concave (42) and/or convex (43) surfaces of the one or more lenses (13, 14).
Description
- This invention relates to jigs for Computer Numerical Control (CNC) machines and in particular to jigs for CNC machines for machining, manipulating, drilling holes in, and/or cutting the outline of, lenses for rimless spectacles.
- There is a requirement for being able to drill holes in spectacle lenses to receive side arms and nose rests that sit adjacent to the bridge of the wearer's nose. The perimeter shape and sizes of lenses are many and varied as are the location of the holes that are required. Furthermore, different prescriptions of optical properties dictate varying thicknesses of lenses and different contours of the concave surface of the lenses that face the eye of the wearer.
- The convex surface of the lens is generally of uniform curvature from one lens to another because the optical properties of the lens is achieved by machining and polishing the concave surface. The widely accepted way used throughout the ophthalmic industry for manufacturing lenses, is to take a standard circular part-spherical blank of the appropriate optical grade glass or plastic material, and bond a temporary mounting block onto the convex surface of the lens. The mounting block includes features that enable the blank to be held firmly in a jig at a predetermined datum position. This mounting block is subsequently removed only after machining and polishing work has been completed.
- With the lens firmly mounted by way of the mounting block in a jig, the peripheral shape or contour of the lens and the manufacture of the optical properties of the lens (by grinding and polishing the concave surface of the lens) is completed. This is usually done in two different CNC machines; one for cutting the profile and one for grinding the optical properties.
- The applicant has a well known machine called an “optidrill” (a Trademark of Berkshire Ophthalmic Laboratories Limited) that is used to drill holes in the finished lenses, but because the lenses arrive at the drilling machine with the mounting blocks firmly bonded to the convex surface, all drilling of the holes has to be done from the concave side of the lens. Hence the prior known optidrill comprises a vertically mounted rotary drill and a rocking table that has restricted tilting movement. The table is mounted on a two axis coordinate movement bed of a CNC machine that is controlled by software to move each lens into the correct position under the drill whilst holding the table by hand in one of two tilted positions. The tilted positions are at each end of a fairly restricted arc of movement. The drill bit enters the concave surface of the lens in a direction substantially normal to the concave surface.
- The applicant is also aware of a prior known drilling machine for drilling from the concave surface of the lens towards the convex surface of the lens. In this prior known apparatus the lenses are mounted flat on a two axis coordinate movement bed of a CNC machine, the lenses are not tilted, instead the drill itself is tilted through an angle so as to drill the appropriate hole.
- Whilst these approaches are adequate for some combinations of lens sizes and some prescriptions of optical properties, inaccuracies and wrongly directed holes often occur because of the thickness and profile of the concave surface at the point of entry of the drill. These inaccuracies have to be designed out by bending or modifying the side arms or nose rests of the frame of the spectacles. Often, additional slots have to be machined into the side edges of the lens in order to accommodate the side arms so that the lenses lie at a correct angle length of the side arms. All of this additional work is costly and leads to an unacceptable aesthetic appearance of the finished spectacles.
- In addition to drilling holes in lenses, it may be a requirement that the lenses undergo further cutting or edging to shape the outline of the lens. It is usual to finalise the cutting and shaping of the lenses before drilling holes in them.
- Presently, CNC machines manipulate the lenses so that they may be rotated around the axis substantially normal to the convex or concave surface of the lens. See for example GB 225022A, GB 583202A and U.S. Pat. No. 3,417,454A. If drilling and cutting operations are to be performed on the lens by the same CNC machine, a problem arises from the fact that lens slippage can occur about this axis when the cutting tool of the machine comes in contact with the lens.
- An object of the present invention is to provide a CNC machine that exploits the fact that the convex surface of most lenses are of a common profile irrespective of the size, the perimeter shape, or optical specification of the lens. The invention also exploits the fact that the mounting blocks for producing the lenses are securely bonded to the convex surface of the lens and provides a table that enables the holes to be drilled from the convex surface of the lens in a direction towards the concave surface.
- A further objective of the present invention is the ability to combine the two processes of shaping the edge of, and drilling into the lens.
- According to the one aspect of the present invention there is provided:
- A jig for mounting one or more lenses on a two axes coordinate movement bed of a CNC machine for machining the one or more lenses, said jig comprising a carriage having one or more lens holders for holding one or more lenses, each lens having a mounting block bonded to a convex surface of the lens, said carriage being rotatable about a first axis so as to be able to present one or more lenses to a tool of the machine at a position where it is desired to machine the one or more lenses said one or more lenses being constrained to restrict rotation of the one or more lenses about an axis normal to the concave and/or convex surfaces of the one or more lenses.
- The CNC machine may be provided with a lens cooling means.
- The carriage may be rotatable about a first axis through an angle of at least 300° or could be rotatable through an angle of 360°.
- Preferably the mounting block on the, or each, lens, has a spigot, the lens holder has one or more sockets into which the or each, mounting block fits in a predetermined position, and securing means are provided for holding the spigot in the socket.
- Preferably the securing means comprises a vacuum means for applying a vacuum to an underside of the or each spigot to hold the spigot in the socket but other types of securing means could be used. For example, a mechanical means, or magnetic means, or a grub screw type of fixing.
- Ideally the mounting block and the lens holder include features that ensure that the spigot does not revolve in the socket.
- Ideally the carriage is mounted in a carrier frame so that the carriage is rotatable about an axis that lies orthogonal to said first axis.
- In one embodiment of the present invention the tool is a drill bit for drilling holes through the one or more lenses.
- In another embodiment of the present invention the tool is a bit for edging, reshaping and/or cutting the outline of the one or more lenses.
- The present invention will now be described by way of example and with reference to the accompanying drawings in which:
-
FIG. 1 shows a pair of rimless spectacles; -
FIG. 2 shows a side view of a lens mounted on a mounting block; -
FIG. 3 shows a perspective view looking down on a jig constructed in accordance with the present invention showing the lenses in a first position; -
FIG. 4 is another view of the jig ofFIG. 1 showing the lenses in a first position; -
FIG. 5 is another view of the jig ofFIGS. 3 and 4 showing the lenses in a second position; -
FIG. 6 is a further view of the jig shown inFIG. 5 with the lenses in said second position, and -
FIG. 7 is a second embodiment of the present invention showing the jig ofFIG. 3 mounted in a cradle. - Referring to
FIG. 1 there is shown a pair of spectacles (10) comprising frames (11) and two rimless lenses (13, 14) interconnected by means of a nosepiece (15) having nose rests (16). The present invention is concerned with a jig for drilling the holes (17, 18) in each of the lenses (13, 14). - Referring to
FIG. 2 there is shown a lens (13) mounted on a mounting block (19). The mounting block (19) has a feature in the form of a serrated collar (20) and a spigot (21) that registers with complementary features on a lens holder (36) as will be explained later. The mounted block (19) is bonded to the concave surface of the lens (13) by means of an adhesive that permits the block to be removed from the lens when the manufacturer of the lens and drilling of the holes is complete. - Referring to
FIG. 3 there is shown a perspective view of the jig constructed in accordance with the present invention. The jig comprises a base plate (22) having upstanding flanges (23) and two anchor plates (24) that are screwed to the flanges (23) by studs (24(a)). The anchor plates (24) are fixed to a bed (not shown) of a CNC drilling machine by studs (25). The bed of the CNC machine is capable of moving along two orthogonal axis (shown by the arrows x and y) in a precise manner related to a vertically mounted drill (26). The drilling head (27) also includes a touch probe (28), the function of which will be described hereinafter. - The jig has two sidewalls (31, 32) which have aligned journal bearings (33). A rotatable carriage (29), for carrying a pair of lenses (13, 14), is mounted in the journal bearings (33). The carriage (29) has a spindle (34) on which is mounted a pulley wheel (35) (see
FIG. 4 ). The carriage has two lens holders each in the form of a socket (36) (one of which is shown inFIG. 2 ), that are mounted in slots 29(a) in the carriage (29). Each lens holder (36) has a serrated collar (37) that matches the serrated collar (20) on the mounting block (19). The mounting block (19) is inserted into the lens holder (36) and includes a feature such as a recess (38) (seeFIG. 2 ) in which a pin (not shown) on the lens holder (36) locates, so that each lens is precisely located on the carriage (29) in a position that is unique for each lens (13, 14) relative to a datum position defined when the lenses were ground to make up the optical prescription. - Each lens holder (36) has a screw threaded hole (40) into which is screwed a vacuum pipe connector and flexible pipe (41) that is connected to a source of vacuum such as a suction pump (not shown).
- In
FIG. 3 , the lenses (13, 14) are shown with the concave surface (42) of each lens (13, 14) facing upwards and this would be the position where one could drill the holes (17, 18) in a direction from the concave surface (42) towards the convex surface (43). - In accordance with the present invention, the carriage (29) is rotatable through 360°, although as will be explained later, it is only necessary to rotate the carriage through an angle of about 300° in order to drill from the convex surface towards the concave surface. In practice, the vacuum pipes (41) prevent the carriage (29) from rotating through 360° freely. In an alternative arrangement, the vacuum pipe (41) could be connected to a connector (not shown) at the end of the spindle (34) that allows rotational movement of the carriage (29) relative to a stationery part of the connector, whilst allowing a vacuum to be applied to the lens holders (36) to hold the mounting blocks (19) in place.
- One of the sidewalls (31) has a stub axle (49) spaced from the axis of spindle (34), on which is mounted an idler pulley (44). The sidewall (31) also has a hole (45) through which projects a spindle (46) of a stepping motor (47). Mounted on the stepping motor spindle (46) is a driving pulley (65). An endless belt (48) shown dotted, extends around the pulleys (35, 44, 65).
- The motor (47) is driven forwards or backwards precisely under the control of a software driven electronic control circuit (50) (see
FIG. 5 ). The control circuit (50) also controls the precise movement of the bed of the CNC machine in a manner well known to an expert in the field of CNC machines. In this way, the lenses (13, 14) can be precisely located at a predetermined angle relative to the drill (26) in order to drill the holes (17, 18) at exactly the correct position and angle. - The touch probe (28) on the drilling head is also used to locate a predetermined point on the lens (13, 14) such as, for example, the edge of the lens profiled in an x or y coordinate position. The touch probe (28), or indeed another probe (not shown), is used to locate a predetermined point on the concave profile of the lens (13, 14) by moving the drill (26) or the bed of the CNC machine in a z direction that is orthogonal to the x and y coordinates.
- The stepper motor (47) is used to control the angle that each lens (13, 14) is tilted about the axis of the spindle (34) so that each hole (17, 18) is drilled at a desired angle normal to the tangents on the convex surface of the lens (13, 14) where the drill (26) contacts the convex surface.
- In a further embodiment of the present invention shown in
FIG. 7 , the base plate (22) of the jig is itself tiltable relative to the bed of the CNC machine about an axis (60) that is orthogonal to the axis of the spindle (34) by providing the base plate (22) with a spindle (61) that is mounted in journal bearings (62). - In operation, in order to drill the holes (17, 18) the lens (13, 14) the lenses are mounted (with the mounting blocks (19) on the convex surfaces) in the lens holders (36) on the carriage with the concave surface (42) facing upwards as shown in
FIG. 3 . - The carriage (29) is then rotated under the control of the stepping motor (47) to bring the concave surface (42) facing upwards as shown in
FIG. 4 . The lens is then held stationary relative to the jig and remains stationary during drilling. This is the position where one would drill the holes (17, 18) from the concave surface (42) towards the convex surface (43). In order to drill from the convex surface (43) towards the concave surface (42) the carriage (29) is rotated through an angle of at least 180° from that shown inFIG. 3 to that shown inFIG. 5 . The carriage is rotated to angle the lens at the appropriate angle to produce the holes (17, 18). The optical specification and shape of the lens, and the desired position of the holes (17, 18) relative to the optical prescription are entered into the software of the control means (50). - The bed of the CNC machine is moved to bring the edge of one of the lenses (13) into contact with the touch probe (28) to set a datum position in the x and y coordinate directions. The touch probe (28) is then used to locate the concave surface (42) of the lens in the case where the lens is positioned as shown in
FIG. 3 , or the convex surface (43) where the lenses are positioned as shown inFIG. 5 and the bed of the CNC machine is moved along the x and y coordinates to position the lens (13) beneath the drill (26). The stepping motor (47) is driven to tilt the carriage (29) and thereby move the lens (13) at the correct angle relative to the axis of the drill (26), and the first hole (17) is drilled in the lens in a direction from the convex surface (43) towards the concave surface (42). - The CNC bed is then moved along the x and y coordinates, and the stepping motor (47) is driven to tilt the lens (13) to the correct angle relative to the drill (26) in order to drill the second hole (18) through the lens (13) in a direction from the convex surface (43) towards the concave surface (42).
- The bed of the CNC machine is then moved again along the x and y coordinates and the procedure described above is repeated in order to drill the two holes (17, 18) in the second lens (14).
- In the instance of the apparatus as shown in
FIG. 7 , where the carriage (29) is tiltable effectively about two axes, by virtue of the fact that the jig itself is tiltable about the axis through the anchor plates (24), the control circuit (50) controls the tilt of the jig relative to the bed about the two orthogonal axis in order to drill the holes (17, 18) at the correct angle. The present invention is suitable for drilling holes (17, 18) and for countersinking the holes to accommodate standard length studs or screws in lenses of varying thicknesses. - In a further embodiment of the present invention, the jig is provided with a cooling means (not shown) so as to cool the lens during the drilling or cutting of the lens. An example of a cooling means is a cooling fluid that can be run over the lens at the region where the machining is taking place.
- The jig of the present invention as hereinbefore described may be used for machining the outline shape of lenses. In this case, the drilling tool is replaced with a cutting or an edging tool. The function of a cutting or an edging tool is to cut, edge and/or finish the outline of the lens to a desired shape. During this operation the lens remains stationary relative to the jig but relative movement between the lens and the tool effects machining of the outline shape. The advantage presented by this design feature is that both processes of cutting and drilling may be performed on the same machine with a single tool change.
- A further advantage is that the space above the jig is free of structure that would otherwise collide with the cutting or edging tool.
- It will be appreciated that the jig hereinbefore described is designed to fix the lens so as to constrain any rotation of the lens about an axis normal to the convex or concave surface of the lens (that is, the lens does not turn around a centre point).
- The common error of previous machines of lens slippage caused by the force of the cutter against the lens can therefore be reduced or even eliminated.
Claims (20)
1. A jig for mounting one or more lenses on a two axes coordinate movement bed of a CNC machine for machining the one or more lenses, said jig comprising a carriage having one or more lens holders for holding the one or more lenses, each lens of the one or more lenses having a mounting block bonded to a convex surface of the lens, said carriage being rotatable about a first axis so as to be able to present the one or more lenses to a tool of the machine at a position where it is desired to machine the one or more lenses, each lens being constrained to restrict rotation of the one or more lenses about an axis normal to at least one of a concave surface and a convex surface of the one or more lenses.
2. A jig according to claim 1 wherein the CNC machine further comprises a lens cooling means.
3. A jig according to claim 2 wherein the carriage is rotatable about a first axis through an angle of 360°.
4. A jig according to claim 3 wherein the carriage is rotatable about a first axis through an angle of at least 300°.
5. A jig according to claim 1 wherein the mounting block on each lens of the one or more lenses has a spigot, the lens holder has one or more sockets into which the, mounting block fits in a predetermined position, and securing means are provided for holding the spigot in the socket.
6. A jig according to claim 5 wherein the securing means comprises a vacuum means for applying a vacuum to an underside of the spigot to hold the spigot in the socket.
7. A jig according to claim 5 wherein the mounting block and the lens holder include features that ensure that the spigot does not revolve in the socket.
8. A jig according to claim 3 wherein the carriage is mounted in a carrier frame so that the carriage is rotatable about an axis that lies orthogonal to said first axis.
9. A jig according to claim 1 wherein the tool is a drill bit for drilling holes through the one or more lenses.
10. A jig according to claim 1 wherein the tool is a bit for edging, reshaping and/or cutting the outline of the one or more lenses.
11. A jig for mounting one or more lenses on a two axes coordinate movement bed of a CNC machine for machining the one or more lenses, said jig comprising a carriage having one or more lens holders for holding the one or more lenses, each lens of the one or more lenses having a mounting block bonded to a convex surface of the lens, said carriage being rotatable about a first axis so as to be able to present the one or more lenses to a tool of the machine at a position where it is desired to machine the one or more lenses, each lens being constrained to restrict rotation of the one or more lenses about an axis normal to at least one of a concave surface and a convex surface of the one or more lenses; wherein the carriage is mounted in a carrier frame so that the carriage is rotatable about an axis that lies orthogonal to said first axis.
12. A jig according to claim 11 wherein the CNC machine further comprises a lens cooling means.
13. A jig according to claim 11 wherein the carriage is rotatable about a first axis through an angle of 360°.
14. A jig according to claim 13 wherein the carriage is rotatable about a first axis through an angle of at least 300°.
15. A jig according to claim 11 wherein the mounting block on each lens of the one or more lenses has a spigot, the lens holder has one or more sockets into which the mounting block fits in a predetermined position, and securing means are provided for holding the spigot in the socket.
16. A jig according to claim 15 wherein the securing means comprises a vacuum means for applying a vacuum to an underside of the or each spigot to hold the spigot in the socket.
17. A jig according to claim 15 wherein the mounting block and the lens holder include features that ensure that the spigot does not revolve in the socket.
18. A jig according to claim 11 wherein the tool is a drill bit for drilling holes through the one or more lenses.
19. A jig according to claim 11 wherein the tool is a bit for edging, reshaping and/or cutting the outline of the one or more lenses.
20. A jig for mounting one or more lenses on a two axes coordinate movement bed of a CNC machine for machining the one or more lenses, said jig comprising a carriage having one or more lens holders for holding the one or more lenses, each lens having a mounting block bonded to a convex surface of the lens, said carriage being rotatable about a first axis so as to be able to present the one or more lenses to a tool of the machine at a position where it is desired to machine the one or more lenses, each lens being constrained to restrict rotation of the one or more lenses about an axis normal to at least one of a concave surface and a convex surface of the one or more lenses, wherein the carriage is rotatable about a first axis through an angle of 360°.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0319475.0 | 2003-08-19 | ||
GB0319475A GB2407785B (en) | 2003-08-19 | 2003-08-19 | Jig for CNC drilling machine |
PCT/GB2004/003553 WO2005018875A1 (en) | 2003-08-19 | 2004-08-18 | Jig for cnc machine |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070173182A1 true US20070173182A1 (en) | 2007-07-26 |
Family
ID=28052777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/568,844 Abandoned US20070173182A1 (en) | 2003-08-19 | 2004-08-18 | Jig for cnc machine |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070173182A1 (en) |
EP (1) | EP1656236A1 (en) |
GB (1) | GB2407785B (en) |
WO (1) | WO2005018875A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080083104A1 (en) * | 2006-10-10 | 2008-04-10 | Takubo Machine Works Co., Ltd. | Machine for spectacle lens |
CN102896506A (en) * | 2012-09-07 | 2013-01-30 | 苏州市职业大学 | Novel radial hole joint fixture suitable for multi-model number drills |
US20150071724A1 (en) * | 2013-09-12 | 2015-03-12 | Roland Dg Corporation | Cutting processing device |
WO2018224617A1 (en) * | 2017-06-09 | 2018-12-13 | Essilor International | Method and system for manufacturing an optical lens having an electronic component |
CN109365878A (en) * | 2018-12-04 | 2019-02-22 | 长安大学 | A kind of rolling clamp suitable for shell part drilling processing |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8042240B2 (en) * | 2007-01-26 | 2011-10-25 | Honda Motor Co., Ltd. | Machine tool |
CN101811311B (en) * | 2010-03-19 | 2012-01-11 | 临海市万事达眼镜设备有限公司 | Punching machine |
CN102009213A (en) * | 2010-12-20 | 2011-04-13 | 南京农业大学 | Drilling jig device |
CN105922041A (en) * | 2016-07-08 | 2016-09-07 | 天津恒鸿鑫德机械有限公司 | Rotatable multi-surface milling and cutting tool fixture |
USD831138S1 (en) | 2017-03-21 | 2018-10-16 | Foremost Golf Mfg., Ltd. | Golf ball |
CN108500697A (en) * | 2018-05-23 | 2018-09-07 | 昆山台致诚精密机械有限公司 | A kind of three axis rail machining centers |
CN109571094A (en) * | 2019-01-23 | 2019-04-05 | 石家庄盛和建筑装饰有限公司 | A kind of boring stationary fixture of aluminum alloy doors and windows connector |
CN110815589A (en) * | 2019-11-28 | 2020-02-21 | 刘洋 | Automatic edging device that punches of glass |
CN111791074A (en) * | 2020-06-28 | 2020-10-20 | 苏州培源电子科技有限公司 | Notebook computer panel processing technology |
CN113084546B (en) * | 2021-03-31 | 2023-04-11 | 柳州市银翔机械有限责任公司 | Telescopic boom forklift frame vertical plate boring tool clamp |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1727888A (en) * | 1926-03-04 | 1929-09-10 | Bausch & Lomb Optical Co | Lens drill |
US2657596A (en) * | 1950-08-14 | 1953-11-03 | Armas Justo Antonio De | Lens drilling machine |
US3841782A (en) * | 1971-02-08 | 1974-10-15 | Mero Ag | Apparatus for the production of connectors for space frameworks or the like |
US5344261A (en) * | 1993-06-01 | 1994-09-06 | Cliber Richard M | Lens generator and tool cutter |
US5722647A (en) * | 1995-04-27 | 1998-03-03 | Rattaro; Armando | Workpiece holder, particularly adapted for holding eyeglasses lenses |
US6074290A (en) * | 1994-10-28 | 2000-06-13 | Minnesota Mining And Manufacturing Company | Compliant lens block and tape |
US6110029A (en) * | 1997-11-11 | 2000-08-29 | Wernicke & Co. Gmbh | Template for the lens of a pair of glasses |
US6298531B1 (en) * | 1997-06-17 | 2001-10-09 | Witzig & Frank Gmbh | Highly flexible machine tool |
US20020006764A1 (en) * | 2000-06-26 | 2002-01-17 | Loh Optikmaschinen Ag | Device for machining optical workpieces |
US20030097741A1 (en) * | 2001-11-26 | 2003-05-29 | Opti-Clip Ltd. | Computer-controlled milling machine for producing lenses for clip-on accessory |
US6572451B1 (en) * | 2000-10-17 | 2003-06-03 | Hoya Corporation | Spectacle lens machining method and apparatus |
US7090446B2 (en) * | 2004-03-29 | 2006-08-15 | Daniel Chen | Optical lens drill press |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB583202A (en) * | 1944-08-03 | 1946-12-11 | American Optical Corp | Improvements in supporting devices for lenses and other articles which are to be subjected to grinding, polishing and other operations |
US3417454A (en) * | 1966-05-16 | 1968-12-24 | Univis Inc | Method of blocking lenses |
US3448549A (en) * | 1967-04-06 | 1969-06-10 | Textron Inc | Method of generating a lens |
US4781452A (en) * | 1984-11-07 | 1988-11-01 | Ace Ronald S | Modular optical manufacturing system |
US4685660A (en) * | 1986-02-13 | 1987-08-11 | United Technologies Corporation | Workholder for securing a workpiece thereto |
US5210695A (en) * | 1990-10-26 | 1993-05-11 | Gerber Optical, Inc. | Single block mounting system for surfacing and edging of a lens blank and method therefor |
JP3358656B2 (en) * | 1999-10-20 | 2002-12-24 | ホーヤ株式会社 | Eyeglass lens drilling jig positioning device |
JP3916445B2 (en) * | 2001-11-08 | 2007-05-16 | 株式会社ニデック | Eyeglass lens processing equipment |
-
2003
- 2003-08-19 GB GB0319475A patent/GB2407785B/en not_active Expired - Fee Related
-
2004
- 2004-08-18 WO PCT/GB2004/003553 patent/WO2005018875A1/en not_active Application Discontinuation
- 2004-08-18 EP EP04768112A patent/EP1656236A1/en not_active Withdrawn
- 2004-08-18 US US10/568,844 patent/US20070173182A1/en not_active Abandoned
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1727888A (en) * | 1926-03-04 | 1929-09-10 | Bausch & Lomb Optical Co | Lens drill |
US2657596A (en) * | 1950-08-14 | 1953-11-03 | Armas Justo Antonio De | Lens drilling machine |
US3841782A (en) * | 1971-02-08 | 1974-10-15 | Mero Ag | Apparatus for the production of connectors for space frameworks or the like |
US5344261A (en) * | 1993-06-01 | 1994-09-06 | Cliber Richard M | Lens generator and tool cutter |
US6074290A (en) * | 1994-10-28 | 2000-06-13 | Minnesota Mining And Manufacturing Company | Compliant lens block and tape |
US5722647A (en) * | 1995-04-27 | 1998-03-03 | Rattaro; Armando | Workpiece holder, particularly adapted for holding eyeglasses lenses |
US6298531B1 (en) * | 1997-06-17 | 2001-10-09 | Witzig & Frank Gmbh | Highly flexible machine tool |
US6110029A (en) * | 1997-11-11 | 2000-08-29 | Wernicke & Co. Gmbh | Template for the lens of a pair of glasses |
US20020006764A1 (en) * | 2000-06-26 | 2002-01-17 | Loh Optikmaschinen Ag | Device for machining optical workpieces |
US6572451B1 (en) * | 2000-10-17 | 2003-06-03 | Hoya Corporation | Spectacle lens machining method and apparatus |
US20030097741A1 (en) * | 2001-11-26 | 2003-05-29 | Opti-Clip Ltd. | Computer-controlled milling machine for producing lenses for clip-on accessory |
US7090446B2 (en) * | 2004-03-29 | 2006-08-15 | Daniel Chen | Optical lens drill press |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080083104A1 (en) * | 2006-10-10 | 2008-04-10 | Takubo Machine Works Co., Ltd. | Machine for spectacle lens |
US7726915B2 (en) * | 2006-10-10 | 2010-06-01 | Takubo Machines Works Co., Ltd. | Machine for spectacle lens |
CN102896506A (en) * | 2012-09-07 | 2013-01-30 | 苏州市职业大学 | Novel radial hole joint fixture suitable for multi-model number drills |
US20150071724A1 (en) * | 2013-09-12 | 2015-03-12 | Roland Dg Corporation | Cutting processing device |
US9421653B2 (en) * | 2013-09-12 | 2016-08-23 | Roland Dg Corporation | Cutting processing device |
WO2018224617A1 (en) * | 2017-06-09 | 2018-12-13 | Essilor International | Method and system for manufacturing an optical lens having an electronic component |
CN110691690A (en) * | 2017-06-09 | 2020-01-14 | 依视路国际公司 | Method and system for manufacturing an optical lens with electronic components |
KR20200016218A (en) * | 2017-06-09 | 2020-02-14 | 에씰로 앙터나시오날 | Method and system for manufacturing optical lens with electronic component |
KR102544409B1 (en) * | 2017-06-09 | 2023-06-16 | 에씰로 앙터나시오날 | Method and system for manufacturing optical lenses with electronic components |
US11897214B2 (en) | 2017-06-09 | 2024-02-13 | Essilor International | Method and system for manufacturing an optical lens having an electronic component |
CN109365878A (en) * | 2018-12-04 | 2019-02-22 | 长安大学 | A kind of rolling clamp suitable for shell part drilling processing |
Also Published As
Publication number | Publication date |
---|---|
GB2407785B (en) | 2007-08-08 |
EP1656236A1 (en) | 2006-05-17 |
GB2407785A (en) | 2005-05-11 |
WO2005018875A1 (en) | 2005-03-03 |
GB0319475D0 (en) | 2003-09-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20070173182A1 (en) | Jig for cnc machine | |
US5615588A (en) | Apparatus for processing the edge of ophthalmic lenses | |
US8464409B2 (en) | Machine for shaping an eyeglass lens, the machine being provided with a turnable tool-carrier having a plurality of working tools mounted thereon | |
US7597033B2 (en) | Machine for machining optical workpieces, in particular plastic spectacle lenses | |
EP1716970B1 (en) | Lens presser for holding eyeglass lens | |
JPH0671547A (en) | Method and device for manufacturing eyeglass lens | |
JP2002200545A (en) | Grinding device | |
US10576600B2 (en) | Apparatus for processing edge of eyeglass lens | |
CA2396284A1 (en) | System and method for ophthalmic lens manufacture | |
US5454748A (en) | Process, block for sucker or a machine for grinding or machining the edge of eyeglass lenses and a process for grinding eyeglass lenses | |
WO2002032604A1 (en) | Method and device for machining spectacle lens | |
JP3740326B2 (en) | Spectacle lens processing method, spectacle lens, and spectacle lens processing apparatus | |
JP4865462B2 (en) | Spectacle lens processing apparatus and spectacle lens processing method | |
JP2829103B2 (en) | Cutting method and cutting device for plastic lens | |
JP2003136385A (en) | End face machining method and device | |
JP2000187185A (en) | Spectacle lens and its machining method and machining device therefor | |
KR101887016B1 (en) | Method for processing edge of eyeglass lens | |
US8550883B2 (en) | Abrasion apparatus | |
JPH1110427A (en) | Groove cutting machine for spectacle lens | |
KR101887015B1 (en) | Apparatus for processing edge of eyeglass lens | |
JP2002326146A (en) | Spectacle lens periphery machining method, spectacle lens grinding machine and spectacle lens chamfering wheel | |
KR20170057608A (en) | Lens clamping device | |
JPH10328995A (en) | Curved surface grinding method | |
JP3766237B2 (en) | Lens processing equipment | |
JP2628416B2 (en) | Mirror finishing device for work outer peripheral surface |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BERKSHIRE OPHTHALMIC LABORATORIES LIMITED, UNITED Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CURCHER, DENNIS;REEL/FRAME:017387/0874 Effective date: 20060322 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |