CN101437652B - Method for trimming a lens by cutting said lens - Google Patents
Method for trimming a lens by cutting said lens Download PDFInfo
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- CN101437652B CN101437652B CN2007800164160A CN200780016416A CN101437652B CN 101437652 B CN101437652 B CN 101437652B CN 2007800164160 A CN2007800164160 A CN 2007800164160A CN 200780016416 A CN200780016416 A CN 200780016416A CN 101437652 B CN101437652 B CN 101437652B
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- eyeglass
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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
Abstract
The invention concerns a method for trimming an optical lens (100) including at least one edge grinding operation along a desired contour including cutting the solid lens material (100) using a cutting tool (637). The cutting includes several passes each performed along the desired contour with reduced axial depth pass.
Description
Technical field
The present invention relates in general to a secondary ophthalmic lens of proofreading and correct glasses is installed in the mirror holder, relates more specifically to a kind of ophthalmic lens with a pair of glasses and is shaped and makes them can be installed to method and apparatus in the mirror holder.
Background technology
Technology department's branch of manufacturing optician's industry is included in the selected mirror holder of wearer or a secondary ophthalmic lens is installed on the mirror holder.
This installation comprises two main operations:
-each eyeglass is centered, comprise the eyes of eyeglass with respect to the wearer in future are positioned and orientation suitably; And then
-each eyeglass is shaped, comprise the shape that its profile is carried out machining or its profile cut is become to expect, the centering parameter that wherein will limit is taken into account.
The present invention relates to the operation of second step " shaping ".Eyeglass is shaped so that it can be installed in following selected mirror holder of wearer or comprise on the mirror holder profile of revising eyeglass make can with it with the mirror holder coupling also/or the lens shape expected of formation.Usually be shaped and comprise two main operations: deburring operation (or " roughing " operation); And the completion of suitable mirror holder type operation.Shaping comprises the unwanted peripheral part that removes the ophthalmic lens of being discussed, make to be initially the proprietary profile of the reduced profile of circle, or when mirror holder is rimless type, only become the shape of the expectation of outward appearance with pleasant to the frame of the spectacle frame of being discussed.Have after the common this shaping operation and comprise the chamfering operation of two sharp edge of repairing the eyeglass on limit being carried out rounding or chamfering.The method of installing of carrying out is depended in the completion operation.When mirror holder is when box type is arranged, the chamfering operation is attended by the sharping operation, and sharping comprises and forms the rib that is commonly referred to the oblique angle.Described oblique angle is designed to be engaged in the corresponding groove that is commonly referred to costa colpi, and this groove is formed in the frame of eyeglass eyeglasses frame to be installed.When mirror holder is no box type, in the shaping of eyeglass with have pair eyeglass to carry out drilling operation suitably afterwards along rounding (chamfering) its sharp edge alternatively, make to be fastened on this eyeglass in the nose of described mirror leg or " pin silk " and no-frame glasses.At last, when mirror holder was the nylon rope type, chamfering operation was attended by fluting, and described fluting is included on the edge face of eyeglass and forms groove, and this groove will admit the nylon rope of mirror holder with on the firm part that eyeglass is pressed against mirror holder.
Usually these operate on independent machining tool that the suitable emery wheel of a combination is installed or the grinding machine and carry out one by one.Boring can be carried out on grinding machine, and in this case, grinding machine is equipped with corresponding instrument, otherwise boring is carried out on independent drilling machine.
The operation that is shaped and completes can be subdivided into a plurality of secondary operation, for example: roughing, completion and polishing.
Usually eyeglass is shaped on numerically control grinder, and this numerically control grinder has and is used for clamping and drives device and a plurality of emery wheel that is suitable for carrying out different operating that emery wheel is rotated.Described eyeglass is locked on clamping-drive unit with known structure at first, makes that its optical reference is known, therefore makes it possible to accurately operate with respect to referential.Be appreciated that, be accompanied by optical reference system is stored in the memory, such locking is used for limiting on eyeglass and physically determines to make eyeglass and pupil position to mate the geometric reference system of required characteristic point that indicates eyeglass and direction, and definite shaping value, make characteristic point and direction in mirror holder, locate suitably.
Recently, occur a kind of novel eyeglass on the market, clamping wherein occurred and driven difficulty.In fact, in order to limit the surface of the ophthalmic lens of making dirty, particularly for the antireflection eyeglass, knownly apply special coating on one or two face of eyeglass, this coating is considered to have " low surface can ".This special coating has the characteristics of adhering to (anti-oil coating) of adhering to (waterproof coating) or grease of anti-sealing.
Yet such coating makes that the surface of coating deposition eyeglass thereon is very smooth.Therefore, be used to lay center-the drive adhesive of liner and just be adhered to the smooth surface of eyeglass very weakly.When use be adhered to very weakly lens surface stop chuck the time, also identical problem can appear.When eyeglass was shaped, the emery wheel of removing material applied (along circumferential) tangential force (frictional force) usually on the edge of eyeglass face, therefore produced very high torque on eyeglass, particularly ground off in the roughing process of eyeglass of lot of materials in meeting.As a result, in forming process, particularly in the roughing process, eyeglass can slide with respect to the equipment that is used for clamping and rotation eyeglass (liner or chuck).The orientation of the center of eyeglass, particularly its axis (that is: the angular orientation of eyeglass in the referential of grinding machine) is changed, and with respect to the optical reference of eyeglass self system, the profile of the eyeglass that is obtained is different with the final profile after the shaping of expectation.
A kind of scheme comprises that the amount that reduces the material of removing in each grinding stroke is so that reduce the torque that is applied on the eyeglass edge face.But this method is also unsatisfactory, and has always obviously prolonged circulation timei.
In order to stop eyeglass, also knownly on smooth coating, apply bed course so that increase bonding with the adhesive that is used to place liner with liner.This method is also also unsatisfactory, and it has delayed the throughput rate of product generally.
When thickness and material being made eyeglass is frangible and make the coating of eyeglass have the eyeglass of the danger of breaking to be shaped, similar problem can appear.Be appreciated that less and by deformable material when for example the eyeglass made of Merlon is clipped between the support of forming machine and the rotating driveshaft when thickness, can flexural deformation.This distortion of eyeglass can reach excessive degree, thereby causes the coating on the eyeglass to be broken, and this is unacceptable and can causes eyeglass to be scrapped.For fear of this phenomenon, need reduce the distortion of eyeglass, and reduce eyeglass is clamped in the support of forming machine and the value of the chucking power between the rotating driveshaft for this reason.
In addition, when being in machining, some organic material that uses in the eyeglass constituent can discharge material frowzy.For having medium or high refractive index, being generally organic material, especially true greater than 1.6 refractive index.Be readily appreciated that these stinks of release are harmful to, not only on the forming machine or near operator's the working environment of work harmful, and the workshop of the eyeglass that is used to install in preparation can not make customer satisfaction near the sales region or when just being visited.
Summary of the invention
The purpose of this invention is to provide a kind of can be effectively, accurately and the manufacturing process and the equipment that reliably eyeglass are formed, wherein, this eyeglass has adding can make this eyeglass be subjected to the multifrequency nature of the danger of slippage or distortion man-hour.
Other purpose of the present invention provides a kind of method and apparatus of shaping, and this manufacturing process and equipment can reduce stink or the harmful substance that discharges when some eyeglass is shaped.
In order to realize at least one in these targets, the invention provides a kind of method that optical mirror slip is shaped, this method comprises that at least one profile along expectation carries out the operation of deburring, in the method, deburring operation comprises being cut by cutting tool wears lens materials, and this cutting comprises a plurality of cutting strokes, and each stroke is carried out along the profile as the expectation of stroke, each stroke is more shallow vertically, that is: the stroke degree of depth is less than the thickness of eyeglass.
Have the eyeglass that slippage, distortion can take place or in mechanical processing process, discharge the dangerous attribute of material beastly for those, select cutting tool, reproduce the radius of expectation and only process a spot of material at the every bit place of eyeglass profile then.It is corresponding with the length of the path on cutting tool institute edge (mainly being the desired profile of eyeglass) to process the amount (on length) of the material of removal by cutting, corresponding with the diameter of cutting tool on width.With the edge face of eyeglass is processed different be not need the material between the profile of the periphery of eyeglass or original contour and eyeglass expectation is all processed removal.In addition, by in a plurality of strokes, carrying out cutting, each stroke has more shallow cutting depth (depth of cut of each stroke is less than the thickness of eyeglass), just can cut out described eyeglass and can and then limit the amount of the material of removing in each stroke arbitrarily, and therefore reduce to be applied to torque on the eyeglass by cutting tool.
The small quantity of material of processing in cutting process makes it possible to:
The restricted passage friction is delivered to the energy total amount on the eyeglass and therefore limits the slip of eyeglass with respect to its clamping device; And/or
Reduce the amount of substance frowzy that discharges in the process operation process.
By concrete example, by means of diameter be 1.5 millimeters (mm) cutter by cut wear material process the volume of the material of removal only estimate for by use diameter process by grinding as the emery wheel of 155mm removal material volume 1/10th.
Adding man-hour to having lubricious eyeglass, this makes it possible to be avoided the slippage of eyeglass in the process with normal clamping degree, thereby makes it possible to be shaped accurately having lubricious eyeglass.When the eyeglass of processing fragile, this makes it possible at first limit and is applied to the chucking power on the eyeglass in the process and does not cause slippage, secondly limit the active force (this active force is less than the power that is applied by the major diameter emery wheel) that applies by cutting tool, thereby avoid the eyeglass overbending.For the eyeglass of being made by the material that comprises material frowzy, the cumulative volume that reduces material processed can make corresponding the reducing of amount of substance frowzy that is discharged by processing.
On the contrary, slide for being difficult for, or without any special fragility, or by not comprising that almost or fully understanding the material that discharges material frowzy in the process makes, or the final profile of expectation is without any the eyeglass of back-flexing point, then can select conventional being used to process the instrument of the edge face of described eyeglass, emery wheel for example is so that obtain the profile of expectation quickly and avoid the cutting tool rapid wear.
Therefore, can select described cutting tool (for this cutting tool, the material frowzy dangerous and/or that discharge that eyeglass slides under the given chucking power in the forming process reduces) as machining tool; Perhaps, if described eyeglass be difficult for to slide, non-friable, do not comprise material frowzy, the instrument of edge face that can select to be used for machining lens is as machining tool.Like this, eyeglass is shaped just more effective, accurate and reliable, and it is inconvenient that near operator and personnel can not feel.
The edge face of selection machining lens is still selected to cut the material of wearing eyeglass and is depended on and the relevant criterion of one or more danger that runs in carrying out specific shaping operation: the eyeglass slippage; Eyeglass breaks; Discharge material beastly.
According to other favourable feature of the present invention, shaping operation comprises the roughing operation, has the completion of carrying out on the instrument of the emery wheel type of the other edge face that is used for machining lens to operate after the roughing operation.
The roughing of being undertaken by cutting (being also referred to as deburring) is used to limit the slip of eyeglass and can obviously prolong the time of the operating process of eyeglass.With emery wheel the completion operation that eyeglass forms is made that the lens periphery of roughing is accurately processed, so that acquisition has the profile of the expectation of accurate dimension.Want the amount of the material of processed removal, the material between the profile of promptly rough machined profile and expectation is very little, has therefore limited by the completion emery wheel and has been applied to the frictional force on the eyeglass and the size of torque.In addition, the radius of eyeglass is littler substantially after roughing, thereby also mechanically reduces the torque that emery wheel passes to eyeglass.
According to other favorable characteristics of the present invention, the diameter of cutting tool that is used to cut the material of wearing eyeglass is significantly less than the radius of eyeglass.The minor diameter of cutting tool makes it possible to cut rightly the material of wearing eyeglass.The diameter of cutting tool is more little, and it is big more to be applied to the degree that frictional force on the eyeglass and torque reduce.Like this, the slippage of eyeglass reduces, and it is more accurate to be shaped.
Before cutting, around the profile of expectation at least one face of eyeglass is surveyed, and at least one cutting stroke, cutting tool is axially controlled according to the detection data of such acquisition.
Advantageously, axially the step pitch of depth of cut is adjustable.
Therefore the step pitch of regulating the axial depth of cut between two strokes is used to change the amount of the material that will remove on each stroke, and adjusts by cutting tool and be applied to torque on the eyeglass, so that the slip of restriction eyeglass.
According to other favorable characteristics of the present invention, for the eyeglass that rotates around the axis of eyeglass with respect to cutting tool, rotation direction can change between two cutting strokes.
Between two cutting strokes, change rotation direction and be in order to change the direction that cutting tool is applied to the torque on the eyeglass, thereby change the direction that eyeglass slides with respect to clamping device.Therefore, eyeglass slip is in one direction compensated by the slip of eyeglass on other direction, thereby has limited the total slip of eyeglass with respect to clamping device.
According to other favorable characteristics of the present invention, for the eyeglass that rotates around the axis of eyeglass with respect to cutting tool, when being rotated in a first direction, carry out part cutting stroke at least, the remainder of when the second direction opposite with first direction rotated, carrying out described stroke (cutting stroke).
In single cutting stroke, change total slip of restriction eyeglass in the process of the same meeting of rotation direction at described stroke.
According to other favorable characteristics of the present invention, eyeglass is shaped except along the profile cut eyeglass of expectation, also comprise along the radial segment line of separating a plurality of peripheral sections and cutting.
To come cut-off lens be in order to limit by between the profile of the periphery of eyeglass and expectation to be cut and still being applied to stress on the eyeglass attached to the part on the eyeglass by making the multi-disc small pieces.
Advantageously, before the profile cut of expectation, cutting RADIAL.In practice, before cutting, at least one face of eyeglass, survey along the radial segment line.In the process of cutting, cutting tool is axially controlled according to the detection data that obtains.
Description of drawings
Below in conjunction with clearly having described the content that the present invention comprises as the description of the drawings of the embodiment of non-limiting example and how being used for practice.In the accompanying drawings:
Fig. 1 is used for optical mirror slip is shaped and the perspective view of the former of cutting assembly is housed; And
Fig. 2 by the cutting and by the front view of the optical mirror slip of deburring, the middle face of this eyeglass shown in it (plan moyen).
The specific embodiment
Former:
Fig. 1 illustrates the former 6 that the cutting assembly 636 that is used to cut optical mirror slip 100 is housed.Former 6 is suitable for revising the profile of ophthalmic lens, makes the outline of frame of this eyeglass and selected mirror holder.
Former comprises and moves part 611, and this moves part 611 and is installed on the structure so that freely pivot around first axle A1, and in practice, this first axle A1 is a horizontal axis.
For clamping and rotate ophthalmic lens to be processed, former is equipped with the supporting arrangement that is suitable for clamping and rotating ophthalmic lens.These supporting arrangements or clamping device comprise two axles 612,613 that are used to provide clamping and rotation driving.These two axles 612,613 are aimed at being called as on the second axis A2 that stops axis mutually, and the described second axis A2 is parallel to first axle A1.Two axles 612,613 are driven and rotation synchronously by being installed in the common drive mechanism (not shown) that moves on the part 611 by the motor (not shown).The common mechanism that is used for rotation driving synchronously is usually known type.
In modification, also can be by driving described two axles with two synchronous different motors of mode machinery or electronics.
The rotation ROT of axle 612,613 can control by central electronic and for example integrally formed microcomputer or the one group of special integrated circuit of computer system.
Each axle 612,613 all has free end, this free end towards another free end and be equipped with and stop the chuck (not shown).This stops that chuck always is not anchored on axle 612,613.They before eyeglass is sent to aforementioned former 6 in advance the processing means (not shown) be used to stop eyeglass, simultaneously their keep contacting with the eyeglass that is transmitting.
Axle 613 can be along stopping axis A2 towards another axle 612 translations, so that stop that at two axial compression ground clamps eyeglass between the chuck.This axial translation motion of axle 613 is driven by the actuator mechanism (not shown) by central electronic and computer system control by CD-ROM drive motor.Axle 612 in addition is at the translation direction invariant position that stops on the axis A2.
In the practice, former has one group of machining tool 614, and this group machining tool comprises that at first the edge face that is used for eyeglass 100 is shaped and rough machined first machining tool 50.In this example, first machining tool 50 is emery wheels, but in modification, can use roughing tool.The magnitude of the grit size on the roughing emery wheel is that 150 microns (μ m) are to 500 μ m.
This group machining tool 614 also is arranged to also comprise second instrument 55 of the edge face that is used for machining lens 100, and this second instrument is different from first instrument 50 at the edge that is used for machining lens 100, and is used to finish the shaping of the edge face of eyeglass 100.This second instrument 55 that is used for the edge face of machining lens 100 is the completion emery wheels that comprise the groove of bevel, and the grit size magnitude of this emery wheel is 55 μ m.Roughing and completion emery wheel are that diameter is about the cylindrical of 155mm.Described one group of machining tool 614 (or one group of emery wheel) also is provided with buffing wheel.
This group machining tool 614 is installed on the common axis that axis is A3, and this axle is used for driving this group machining tool rotation in the shaping operation process.Shown in accompanying drawing in sightless common axis under the control of electronics and computer system, drive and rotate by electro-motor 620.
But this group machining tool 614 is along axis A3 also translation, and driven under motor control and carry out such translation.Particularly, whole one group of machining tool 614 and axle thereof and its motor are by carriage 621 supporting by sliding part 622 supportings of being fixed in described structure itself, so that slide along the 3rd axis A3.The translational motion of emery wheel load support 621 is called transmission, is represented by TRA in Fig. 1.This motor-driven driving mechanism (not shown) that is transmitted under the control of central electronic and computer system by for example screw-and-nut system or guide rail drives.
But be the spacing that makes between the axis A2 of the axis A3 of in forming process dynamic adjustments emery wheel 614 and eyeglass, utilize the ability that part 611 can pivot around axis A1 that moves.This pivot to produce the motion that is clamped in the eyeglass between the axle 612,613, and this motion is vertical substantially in this example, thus with eyeglass towards or move away from emery wheel 614.This mobile ability makes it possible to reproduce the shape of the expectation of programming design in electronics and the computer system, and this is called reproduction, is expressed as RES in the drawings.This reproduction of moving RES is by central electronic and computer system control.
For being processed into, ophthalmic lens has given profile, need be in the corresponding way along the 5th axis A5 travelling nut 617 under the driving of motor 619, so that the control reproduction of moving also need make described bolster pivot around the second axis A2 under the driving of the motor of controlling bolster 612,613 simultaneously.Move the horizontal reproduction of moving RES of part 611 and eyeglass axle 612,613 rotatablely move ROT by suitably for this reason the electronics and the computer system of programming control with coordinated mode, make on the ophthalmic lens profile have a few and form suitable diameter in succession.
Former shown in Fig. 1 also comprises the work package 625 that is loaded with the chamfering that is installed on the common axis 632 and fluting wheel 630,631, and this work package 625 is at the axis A2 that is basically perpendicular to the axle 612,613 that is used for clipped lens and be used to reproduce on the direction that the axis A5 of RES extends a mobile free degree is arranged.This free degree is called rollback (restitution), and is expressed as ESC in the drawings.
Particularly, this rollback comprises work package 625 is pivoted around axis A3.So that pivot around axis A3, this bar 626 is fixed on the tubular sleeve 627 that is installed on the carriage 621 assembly 625 by bar 626 carryings.In order to control its pivot, sleeve 627 is provided with and is installed in the wheel that tooth is arranged 628 of gear (not shown in the accompanying drawing) engagement on the axle of electro-motor 629 at its end away from bar 626, and described electro-motor 629 is fixed in carriage 621.
On the whole, the free degree of the motion on this former is as follows:
The rotation of-eyeglass makes eyeglass rotate around its clamping axis, and this clamping axis is basically perpendicular to the integral planar of eyeglass;
-reproduce, it comprise emery wheel with respect to eyeglass freely laterally (promptly in the integral planar of eyeglass) move, make it possible to reproduce the different radii of the profile of the intended shape of describing eyeglass;
-transmit, it comprise Work tool with respect to eyeglass vertically the integral planar of eyeglass (promptly perpendicular to) move, therefore make the Work tool of selecting be positioned to aim at eyeglass; And
-rollback, it comprises that work package laterally moves with respect to eyeglass to be different from the direction of reproducing direction, feasible completion assembly can place the use location and the completion assembly can be removed.
Work package 625 is provided with the toolbox 636 that cutting tool 637 is housed, and is used for by cutting the material of wearing eyeglass 100 and roughing shaping (see figure 1).Cut to wear and comprise and make whole diameters of instrument enter eyeglass and instrument is moved through eyeglass along cutting path, described cutting path makes it possible to obtain to expect cuts out shape 110.Expectation cut out shape 110 be have with the final profile phase of expectation with the roughing profile 110 of expectation of shape, but size is bigger.
Cutting the difference of wearing lens materials and machining lens edge face is, when the edge of machining lens face, only there is the fraction of the diameter of machining tool to engage, the original periphery of eyeglass (or edge face) and want whole processed removals of material between the rough machined profile with the material of eyeglass edge face.
Cutting tool is that axis is the shank milling cutter of A6, and its axis A6 is basically parallel to the axis A2 (being the axis of eyeglass) of axle 612,613.In modification, cutting tool can be made up of the emery wheel axle, and its diameter is less than roughing emery wheel or cutter, or in fact can be laser beam.
For example, the length of cutter is 12mm, is made by tungsten carbide.In order to cut out eyeglass by cutting the material of wearing eyeglass, the diameter of cutting tool 637 is much smaller than the diameter of eyeglass.The diameter of cutter 637 that is used to cut the material of wearing eyeglass 100 is preferably less than 4mm, usually at 1mm in the scope of 2mm.As example, the diameter of first machining tool or emery wheel 50 is approximately 155mm.In other words, also can think cutter 637 diameter average out to eyeglass 100 radius (being typically about 70mm) 1% to 6%.
Cutter uses the free degree of two motions that are pre-existing in to locate, and the free degree of described motion is made up of rollback ESC and transmission TRA.
Former 6 comprises the control electronic processors unit 130 that is also referred to as electronics and computer system, this control electronic processors unit is made of electronic cards in this embodiment, described electronic cards is designed to coordinated mode control Work tool and is used for clamping the different frees degree with the motion that drives the device (clamping device) that eyeglass rotates, so that carry out automatic forming method as described below.
As example, electronics and computer system 130 generally include mainboard, microprocessor, random-access memory (ram) and fixing mass storage.Mass storage comprises the program that is used to carry out manufacturing process as described below.Mass storage is preferably and can rewrites and favourable detachable, so that make it to replace rapidly or to programme on far-end computer by standard interface.The device of the final profile 120 of eyeglass that is used to store expectation also is provided simultaneously.These storage devices can comprise the interface (for example keyboard and screen) that can rewrite memory and be used for writing described memory.
At last, electronics and computer system 130 have be used at least one given shaping operation select to be used for machining lens 100 the edge face first instrument 50 or be used for the selecting arrangement of the instrument 637 of cut-off lens 100.Described selecting arrangement comprises that first instrument 50 that is designed to determine to select to be used for the edge face of machining lens 100 still is used for definite device of the instrument 637 of cut-off lens 100.For this reason, determining that device comprises is used to calculate relevant eyeglass and/or processing and cutting tool and/or the relevant parameter value that is used for the device of clipped lens 100.Determine that device also comprises the device that is used for more described value and reference value, they are designed to still be used for according to first instrument 50 that comparative result determine to select to be used to process the edge face instrument 637 of cut-off lens 100.
Manufacturing process:
The feature relevant with the shaping of optical mirror slip 100, for example the surface of Qi Wang final profile 120 and eyeglass energy is stored in the electronic processors unit.The surface of eyeglass can available angle of wetting be carried out quantitatively.For a water on the lens surface of being discussed, angle of wetting is defined as at the surperficial tangent plane of the surface of a described water and lens surface position contacting place and described water droplet and the angle that forms between the surperficial tangent plane of described position that (lens surface) contacts with the surface of water droplet and eyeglass face.This angle is big approximately, and the surface can be low more, so eyeglass is more smooth.
At first instrument 50 at the edge that is used for machining lens 100 be used to cut between the instrument 637 of the material of wearing eyeglass 100 and select, so that carry out at least a given shaping operation.The given shaping operation of choosing in this example is the shape that roughing goes out eyeglass, is to use the completion operation of second instrument, 55 execution of the edge face that is used for machining lens 100 subsequently.
This selects to carry out for example friction, capability of one or two face of clamping device clamping, and/or (eyeglass) thickness, and/or the material of eyeglass according to one or more parameters relevant with eyeglass.Can according to the parameter relevant with the eyeglass holding device for example the friction, capability of holding device select.
The selection of instrument can be carried out according to the four class parameters that can optionally make up:
-first kind parameter is relevant with the smooth or rough property of lens surface;
-the second class parameter is relevant with the hardness of eyeglass;
Whether exist the material that can discharge stink in the process relevant in the composition of-Di three class parameters and the material that constitutes eyeglass; And
-Di four class parameters are relevant with the contour shape of the eyeglass requirement afterwards that is shaped.
As example, first kind parameter is included in eyeglass 100 with respect to the maximum that can be applied to the torque on the eyeglass 100 before clamping device 612,613 slips.This acceptable torque value depends on clamping device simultaneously, pushes used power of eyeglass and lens surface.Comparator device compares the maximum and the reference value of this calculating.As example, reference value can be 2 Newton meter (n.m.)s (Nm).If this calculated value greater than reference value, selects first instrument 50 to come roughing to be shaped so, and if the maximum of this calculating is less than or equal to reference value, select cutting tool 637 to wear material and roughing is shaped so by cutting.In the case, think that the surface of optical mirror slip can be low.
Another parameter relevant with the smooth and rough attribute on surface eyeglass that need consider is angle of wetting when selection tool, if angle of wetting, thinks that the surface of optical mirror slip can low and selection cutting tool greater than 100 °.
As example, can suppose that eyeglass has to make all smooth waterproof in two surface and/or anti-oil coating.Can be applied to so and make on the eyeglass 100 that it can be with respect to clamping device 612,613 and the maximum of the torque of sliding is about 0.3Nm.Need to select cutting tool as can be seen in the case.
Also can come selection tool according to the hardness of eyeglass.If the thickness of eyeglass and/or material exist and make the danger that eyeglass deforms, the power that so eyeglass is clamped to its supporting arrangement just is reduced, and slides for fear of eyeglass, selects cutting tool to come roughing to be shaped.Can select according to the combination of lens thickness and material.
Whether also can exist material frowzy to come selection tool in the composition according to the material that constitutes eyeglass, this material will be released in process.This criterion at first depends on the attribute of the material that constitutes eyeglass.For example, at present great majority are medium or bigger by refractive index, promptly particularly refractive index greater than 1.6, the eyeglass made of material comprise the material that can discharge a large amount of (frowziness) materials in the process.In order to consider this criterion, the electronic processors unit has or enters the register of Local or Remote, each record relates to an a kind of material or a class material in this register, and not only comprise the identifier that is used for this kind material or such material, but also comprise the mark that whether has a large amount of (frowziness) materials that can discharge in the process in the composition of indicating this kind material or such material.
Another criterion of selection tool is the shape that the final profile of eyeglass requires.If this shape has one or more recessed shapes, be that the projection of profile on the middle face of eyeglass has one or more back-flexing points, the conventional instrument of periphery that so probably can not be by being used for machining lens obtains described shape, described conventional instrument is emery wheel or cutter for example, their diameter is too big, so that can not be applicable to the back-flexing point.
In a word, if it is smooth or frangible to detect eyeglass by electronic processing unit, if perhaps comprise material frowzy in the material of eyeglass, or in the shape of the profile of eyeglass expectation one or more recesses are arranged, so in the application of above-mentioned criterion, processor unit is by appropriate interface, and for example related with keyboard screen etc. works, so that should select cutting tool to be shaped with the roughing with eyeglass to operator's suggestion.In modification, the electronic processors unit is selection tool and corresponding manufacturing process automatically also, and not by with any dialogue of operator.
As mentioned above, this wears method that material is shaped and is used to reduce eyeglass with respect to slide dangerous of its clamping device and/or the amount of substance frowzy that reduces to discharge by cutting.The eyeglass deburring can also be formed complex-shaped profile, for example have one or more shapes that comprise the recess of back-flexing point, promptly can not use the emery wheel of the conventional periphery that is used for machining lens or cutter and the shape made.
In cutting process, electronic processing system 130 is controlled the free degree of these motions with suitable coordinate: the rotation ROT of rollback motion ESC, eyeglass that is loaded with reproduction of moving RES, the work package 625 of translatory movement TRA, clamping and the rotating driveshaft 612,613 of the work package 625 of cutting tool 637 is so that be cut-off lens and cutting tool is moved suitably with respect to eyeglass.
In first embodiment, wear material in order to cut, cutting tool rotates around its axis A6, and this axis A6 locatees along being parallel to the axis of eyeglass, so that by in the material that laterally moves into eyeglass.Cutting tool 637 also axially is provided with by this way, makes that in its horizontal moving process it passes eyeglass rightly between two faces of eyeglass.Cutting tool 637 laterally moves with respect to the axis of eyeglass 100 then, so that obtain the roughing shape 110 of expectation.Roughing shape 110 has the final profile 120 of requirement but size is big slightly.
In unshowned modification, roughing shape 110 and final profile 120 have one or more recessed shape parts, that is: the projection on the face (as shown in Figure 2) in eyeglass of described profile has one or more back-flexing points (different with the example shown in Fig. 2).As mentioned above, it is just selected or be proposed at least to be used to cut the instrument of wearing material.
As shown in Figure 2, the roughing of eyeglass comprises along the radial segment line 105,106,107 and 108 of separating a plurality of peripheral sections eyeglass is cut into a plurality of parts.
The peripheral section that cuts out from eyeglass comprises the multi-disc small pieces 101,102,103,104 that will discard, and by clamping device 612,613 clampings and remaining middle body with roughing shape 110 of expectation.Every small pieces can be by such acquisition: cutting tool 637 substantially along the radiuses of eyeglass 100 penetrate and to the central mobile of eyeglass 100 till it reaches roughing shape 110 to be made, it moves along the part of roughing shape 110 to be made subsequently, last cutting tool 637 shifts out from eyeglass 100 along another radius of eyeglass 100 central authorities away from eyeglass 100 substantially, till cutting tool is thrown off from eyeglass.
In modification, before the profile along the shape of expecting 110 cuts, can cut earlier and form the radial segment line.
In modification,, also can be provided with to come cut-off lens 100 by carrying out a plurality of cutting strokes in order further to reduce any danger (when eyeglass is frangible or smooth) that eyeglass slides.In the case, before cutting, at first along the radial segment line two faces of eyeglass are surveyed then around the profile that requires.After this, the roughing of eyeglass is carried out by the cutting in a plurality of axial stroke in succession.Eyeglass cuts along the radial segment line at first, and each radial segment line requires a plurality of strokes, and each stroke comprises axially more shallow stroke.After this, in case eyeglass radially the section line cut open, eyeglass cuts along the profile of the eyeglass that requires.The a plurality of strokes of this split requirement, each stroke comprise axially more shallow stroke.The axial depth of cutting stroke can be regulated, and the degree of depth of stroke is usually when the radial segment line cut during greater than the final profile cut that requires on the edge.Naturally, the axial stroke degree of depth of each stroke is less than the eyeglass maximum ga(u)ge along the profile of expecting.The degree of depth of stroke and number can advantageously limit according to geometric data, and this geometric data is relevant with thickness by surveying the eyeglass that obtains along the two sides of the eyeglass of final profile.
In each cutting stroke, cutting tool 637 is subjected to axial control according to the data of the detection that obtains previously, i.e. the control of direction of transfer.According to the detection data of section line radially, the cutting of carrying out along these section lines is transmitted control.According to detection, the cutting along the profile of described requirement is transmitted control along the final profile that requires.
The direction of rotation of eyeglass 100 (this direction constitutes the direction of advance of processing) changes between two cutting strokes.Exist under the situation of a spot of rotation-sliding between eyeglass and its clamping device, this has been avoided the accumulation of slippage on the equidirectional.
Can relative to cutting tool when first direction of rotation is rotated eyeglass, carry out part cutting stroke, when rotating up, carry out the cutting of stroke other parts along the second party opposite with first direction of rotation.
No matter use any embodiment, replace initial periphery to penetrate eyeglass by eyeglass, can can come cutting tool is positioned with respect to the ability that eyeglass moves on the direction that transmits by using cutting tool, so that on the part or all of thickness of eyeglass, hole, then when rotating eyeglass along the horizontal mobile cutting tool of line of cut that requires.
Finish shaping by grinding
After this, finish shaping by using completion emery wheel 55 to carry out grinding.In the place of needs, the sharping groove is used for providing the oblique angle at the edge of eyeglass face.When removing by the small quantity of material of cutting between the roughing shape 110 of wearing material and obtaining and the final profile 120 of requirement, the ability of translatory movement TRA of completion emery wheel and the reproduction of moving RES of eyeglass and the ROT that rotatablely moves are controlled, so that reach the final profile 120 of expectation.Because the sand grains of completion emery wheel 55 is tiny sand grains, can accurately obtain the final profile of expecting 120.
The present invention is not limited to describe and shown embodiment, those skilled in the art will know that how to carry out any variations in spiritual scope of the present invention.
In modification, can use a kind of utensil, this utensil do not comprise the edge face that is used for machining lens instrument, do not comprise selecting arrangement, but but comprise the instrument that is used to cut the material of wearing eyeglass.Thereby being used to cut, this utensil wears the material that carries out the optical mirror slip of coating with low surface energy treatments.
In modification, cutting tool can be handled.For example, it can be operated and rotate around the axis with the axis normal of cutter.This instrument also can be used for eyeglass is holed.It also can be replaced by drill bit, and this drill bit is used at first with eyeglass boring, then as the cutting tool of carrying out the function of cut-off lens in the above described manner.
Can for example imagine after with completion emery wheel completion slot, other fininshing step of boring and chamfering.In modification, the emery wheel that is used for the roughing shaping can be replaced by the device that utilizes jet to cut.
In modification, can make its only partial automation to selecting arrangement setting.Be used for the program and the interface that communicate with the operator thereby can be provided with to comprise selecting arrangement, this program and Interface design become to propose to be used for the scope of the instrument that roughing is shaped.The operator manually is chosen in cutting tool or the machining tool that uses in the roughing shaping by communication interface then.
Claims (10)
1. method that optical mirror slip (100) is shaped, this method comprises at least one operation along the profile deburring of expectation, it is characterized in that, this deburring operation comprises by cutting tool (637) cuts the material of wearing eyeglass (100), this cutting operation comprises a plurality of cutting strokes, and each stroke carries out as the profile of axially more shallow stroke along expectation.
2. manufacturing process according to claim 1 is characterized in that this method is applied to be provided with the eyeglass of smooth coating at least one surface, and this eyeglass is held by described surface when being cut at least.
3. manufacturing process according to claim 2 is characterized in that, this method is applied to by being included in the process eyeglass that the material that can discharge material frowzy constitutes.
4. according to each described manufacturing process in the claim 1 to 3, it is characterized in that the diameter of cutting tool (637) that is used to cut the material of wearing eyeglass (100) is significantly less than the radius of eyeglass (100).
5. according to each described manufacturing process in the claim 1 to 3, it is characterized in that, before cutting, profile around expectation is surveyed at least one surface of eyeglass, in the process of at least one cutting process, cutting tool (637) is axially controlled according to the detection data of such acquisition.
6. according to each described manufacturing process in the claim 1 to 3, it is characterized in that for the eyeglass (100) that rotates around the axis of eyeglass with respect to cutting tool (637), rotation direction changes between two cutting strokes.
7. according to each described manufacturing process in the claim 1 to 3, it is characterized in that, for the eyeglass (100) that rotates around the axis of eyeglass (100) with respect to cutting tool (637), when being rotated in a first direction, carry out part cutting stroke at least, at the cutting stroke of when the second direction opposite with first direction rotated, carrying out the remainder of described stroke.
8. according to each described manufacturing process in the claim 1 to 3, it is characterized in that, eyeglass (100) is shaped except along the profile cut eyeglass of expectation, also comprises along the radial segment line of separating a plurality of peripheral sections (101,102,103,104) and cutting.
9. manufacturing process according to claim 8 is characterized in that, is cutting RADIAL before the profile cut of expectation.
10. manufacturing process according to claim 5, it is characterized in that, eyeglass (100) is shaped except the profile cut eyeglass of edge expectation, also comprise along the radial segment line of separating a plurality of peripheral sections (101,102,103,104) and cutting, before cutting, along the radial segment line at least one face of described eyeglass is surveyed, in cutting process, cutting tool (637) is axially controlled according to thus obtained detection data.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0604133A FR2900853B1 (en) | 2006-05-10 | 2006-05-10 | METHOD AND DEVICE FOR QUENCHING A SLIDING LENS BY CUTTING THE LENS |
| FR06/04133 | 2006-05-10 | ||
| FR06/04493 | 2006-05-19 | ||
| FR0604493A FR2900854B1 (en) | 2006-05-10 | 2006-05-19 | METHOD AND DEVICE FOR SOURCEING A LENS BY CUTTING THE LENS |
| PCT/FR2007/000695 WO2007128903A1 (en) | 2006-05-10 | 2007-04-24 | Method and device for trimming a lens by cutting said lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101437652A CN101437652A (en) | 2009-05-20 |
| CN101437652B true CN101437652B (en) | 2011-02-09 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800164283A Active CN101443155B (en) | 2006-05-10 | 2007-04-24 | Method and device for trimming a lens by cutting said lens |
| CN2007800164160A Active CN101437652B (en) | 2006-05-10 | 2007-04-24 | Method for trimming a lens by cutting said lens |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800164283A Active CN101443155B (en) | 2006-05-10 | 2007-04-24 | Method and device for trimming a lens by cutting said lens |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN101443155B (en) |
| FR (1) | FR2900853B1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2962676B1 (en) * | 2010-07-13 | 2012-08-03 | Essilor Int | METHOD FOR DETOURING AN OPHTHALMIC LENS OF LENSES COMPRISING A COATING FILM |
| FR2990369B1 (en) | 2012-05-09 | 2014-08-29 | Essilor Int | METHOD FOR DISTRESSING A MULTILAYER OPHTHALMIC LENS |
| CN107234515A (en) * | 2017-06-06 | 2017-10-10 | 宁波法里奥光学科技发展有限公司 | A kind of lens edge grinding machine and eyeglass method for cutting edge |
| EP3470171B1 (en) * | 2017-10-13 | 2021-01-20 | Essilor International | An improved method of preparing a lens blank for an operation of surfacing thereof |
| CN114701078A (en) * | 2022-02-21 | 2022-07-05 | 厦门雅瑞实业有限公司 | Lens milling and grinding system and process method thereof |
| CN114434220A (en) * | 2022-02-24 | 2022-05-06 | 周贺祥 | Glasses lens and processing technology thereof |
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| EP1037727B1 (en) * | 1997-09-04 | 2003-04-02 | Wernicke & Co. GmbH | Device for machining the edges of spectacle glasses |
| CN2718612Y (en) * | 2004-06-09 | 2005-08-17 | 潘吕建 | Glasses-lens rabbeting machine |
| CN1764517A (en) * | 2003-03-27 | 2006-04-26 | 百利奥国际公司 | Machine for grinding optical lenses |
| EP1616663B1 (en) * | 2001-03-22 | 2006-08-30 | Satisloh GmbH | Device for grinding edges of optical lenses |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3804133A1 (en) * | 1988-02-11 | 1989-08-17 | Wernicke & Co Gmbh | Method and arrangement for shaping a spectacle glass |
| US6568990B2 (en) * | 2000-01-18 | 2003-05-27 | Ncrx Optical Solutions, Inc. | System and method for ophthalmic lens manufacture |
| CN2434096Y (en) * | 2000-08-25 | 2001-06-13 | 夏旺德 | Full automatic edge grinder |
| JP2003145400A (en) * | 2001-11-08 | 2003-05-20 | Nidek Co Ltd | Spectacle lens machining device |
| JP4098046B2 (en) * | 2002-09-20 | 2008-06-11 | 株式会社トプコン | Lens grinding machine |
| FR2885063B1 (en) * | 2005-04-29 | 2007-07-06 | Essilor Int | METHOD AND DEVICE FOR WORKING THE PERIPHERY OF AN OPHTHALMIC LENS OF EYEGLASSES |
| FR2887168B1 (en) * | 2005-06-16 | 2007-08-31 | Essilor Int | METHOD AND DEVICE FOR TWISTING THE BEAM OF AN OPHTHALMIC LENS OF EYEWEAR |
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2006
- 2006-05-10 FR FR0604133A patent/FR2900853B1/en active Active
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2007
- 2007-04-24 CN CN2007800164283A patent/CN101443155B/en active Active
- 2007-04-24 CN CN2007800164160A patent/CN101437652B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1037727B1 (en) * | 1997-09-04 | 2003-04-02 | Wernicke & Co. GmbH | Device for machining the edges of spectacle glasses |
| EP1616663B1 (en) * | 2001-03-22 | 2006-08-30 | Satisloh GmbH | Device for grinding edges of optical lenses |
| CN1764517A (en) * | 2003-03-27 | 2006-04-26 | 百利奥国际公司 | Machine for grinding optical lenses |
| CN2718612Y (en) * | 2004-06-09 | 2005-08-17 | 潘吕建 | Glasses-lens rabbeting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101443155A (en) | 2009-05-27 |
| FR2900853A1 (en) | 2007-11-16 |
| FR2900853B1 (en) | 2009-01-23 |
| CN101437652A (en) | 2009-05-20 |
| CN101443155B (en) | 2011-09-14 |
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Effective date of registration: 20180312 Address after: France Sharon Ton Le Pon Patentee after: Essilor International Ltd. Address before: French sirloin pass Patentee before: Essilor International General Optical Co., Ltd. |