CN101274415B - Eyeglass lens processing apparatus - Google Patents
Eyeglass lens processing apparatus Download PDFInfo
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- CN101274415B CN101274415B CN 200810087462 CN200810087462A CN101274415B CN 101274415 B CN101274415 B CN 101274415B CN 200810087462 CN200810087462 CN 200810087462 CN 200810087462 A CN200810087462 A CN 200810087462A CN 101274415 B CN101274415 B CN 101274415B
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Abstract
In a two-step processing mode in which a cup for attaching a lens to a chuck axis is changed from a large diameter cup to a small diameter cup on the way of processing, a roughing path data computing unit for computing first roughing path data larger than the target lens shape data by a predetermined finishing margin, and second roughing path data having a radius vector larger by at least a than at least radius vector data of the large diameter cup; and a processing controller for roughing the peripheral edge of the lens based on the second roughing path data in response to a processing start signal, thereafter stopping the processing and further resuming the processing. The processing controller performs, when a processing resuming signal is inputted, processing control of either roughing and finishing, or finishing without roughing.
Description
Technical field
The present invention relates to a kind of eyeglass lens processing apparatus, it is used for the manufacturing spectacle lenses peripheral edge.
Background technology
In the process of eyeglass peripheral edge, the peripheral edge of the eyeglass that is kept by two lens chuck axles of eyeglass lens processing apparatus by the roughing grinding stone by roughing, then by fine finishining grinding stone for example by fine finishining (referring to, for example, USP6283826 (JP-A-11-333684)).When eyeglass is kept by two lens chuck axles, at first, use center instrument to be fixed to lens surface as the cup that clamp for machining uses.Then, the bottom of cup is installed in the cup of a lens chuck axle, and eyeglass is kept by the eyeglass pressing element of another lens chuck axle.
In process, because reaction force and the revolving force of grinding stone, eyeglass bears load.Consider this fact, when processing has the eyeglass of general objective lens shape, reach maximum in order to ensure the confining force of being clamped by chuck, adopted the major diameter cup with big attachment area.
In recent years, the design of frame is variation, and the processing of eyeglass with narrow vertical width has also been increased.In the process to the eyeglass of target mirror plate shape with narrow vertical width, if having large diameter common cup interferes with machining tool, then adopt the cup of minor diameter, its plane with little vertical size is used for being attached to eyeglass (referring to example, USP6241577 (JP-A-10-249692)).
Yet when clamping with chuck, the confining force that the minor diameter cup provides is littler than major diameter cup.Therefore, especially, when the peripheral edge with large diameter undressed eyeglass was carried out roughing, the rotating torque load that is applied on the lens chuck axle increased, and makes desaxe may take place.In addition, covered at eyeglass under the situation of water or the difficult water-repellent substance that deposits of oil, it is more remarkable that this problem will become.
Summary of the invention
Technical problem of the present invention provides a kind of eyeglass lens processing apparatus, and it is at the peripheral edge of the eyeglass with narrow vertical width, perhaps even in being easy to generate the eyeglass of desaxe, can reducing the generation of desaxe and shirtsleeve operation can be provided.
In order to solve the above-mentioned fact, the invention provides following structure.
(1) a kind of eyeglass lens processing apparatus of the eyeglass peripheral edge being processed for based target lens shape data, it comprises:
Mode setting unit, it to conversion two step cooked modes, wherein in process, is replaced with the minor diameter cup for the cup (cup) that eyeglass is attached to chuck axis from the major diameter cup with cooked mode;
Roughing path data computing unit, it is used for calculating the first roughing path data and the second roughing path data, wherein the first roughing path data is than the big predetermined allowance for finish of target mirror plate shape data, the second roughing data have at least than the big radius vector of Δ a at least of radius vector data of major diameter cup based on the radius vector data of the first roughing path data and major diameter cup, and Δ a is for arranging to avoid the length of the machining interference between roughing tool and the major diameter cup; And
The machining control device, it is used for response processing commencing signal, based on the second roughing path data, the peripheral edge that is attached at the eyeglass on the major diameter cup is carried out roughing, and stop processing thereafter, and further recover processing,
Wherein, after the processing restoring signal is transfused to, the machining control device is carried out machining control to processing, and described processing refers to, based on the first roughing path data, use roughing tool, use the peripheral edge of the eyeglass of minor diameter cup to carry out after the roughing to replacement, used finisher that peripheral edge is carried out fine finishining, perhaps based on the fine finishining path data, use finisher that peripheral edge is carried out fine finishining, and do not carry out roughing.
(2) as (1) described eyeglass lens processing apparatus, wherein the second roughing path data is the synthesis path data of having revised, wherein, the first roughing path is synthesized with the path of the radius vector data of the major diameter cup that has increased Δ a, be used for providing the outermost synthesis path, and further revise the zone that intersect in the first roughing path and the path of the radius vector data of the major diameter cup that has increased Δ a, to avoid the machining interference in process.
(3) as (1) described eyeglass lens processing apparatus, wherein the radius vector of the second roughing path data is no more than ultimate range, and this ultimate range is based on the torque load(ing) that is applied to eyeglass in the process of using the minor diameter cup and definite.
(4) as (1) described eyeglass lens processing apparatus, wherein the second roughing path data is the synthesis path data of having revised, wherein, the path of the first roughing path and the radius vector data of the major diameter cup that has increased Δ a is synthesized and becomes the shape that is no more than ultimate range, so that the outermost synthesis path to be provided, this ultimate range is based on the torque load(ing) that is applied to eyeglass in the process of using the minor diameter cup and definite, and revised the zone that intersect in the first roughing path and the path of the radius vector data of the major diameter cup that has increased Δ a, avoiding the machining interference in process.
(5) as (4) described eyeglass lens processing apparatus, wherein ultimate range is 25mm.
(6) as (1) described eyeglass lens processing apparatus, further comprise:
Determining unit, its radius vector data that are used for after the fine finishining of the radius vector data of the major diameter cup that will store and simulation compare, to determine whether to have taken place the machining interference work; And
Display unit, it is used for showing determined result when machining interference takes place.
(7) as (1) described eyeglass lens processing apparatus, further comprise the cup support, its size with the major diameter cup is corresponding, and this cup support is mounted to the cup of chuck axis, and can separate from this cup.
(8) further comprise eyeglass pressing element support as (1) described eyeglass lens processing apparatus, its size with the major diameter cup is corresponding, and this eyeglass pressing element support is mounted to the eyeglass pressing element of chuck axis, and can separate from this eyeglass pressing element.
(9) as (1) described eyeglass lens processing apparatus, wherein this cup comprises:
The minor diameter cup, it comprises the base in the cup that is installed in chuck axis, and the minor diameter flange that is attached to base, wherein by jointing material, a surface of flange contacts with the surface of eyeglass; And
Support, it has for the opening that inserts and remove the base of minor diameter cup, and comprise the surface with diameter bigger than the flange of minor diameter cup that contacts with lens surface by jointing material, and the surface of base side that is used for being mounted to the flange of minor diameter cup.
(10) as (9) described eyeglass lens processing apparatus, wherein jointing material is two-sided tape, and this two-sided tape has separable otch at flange and the boundary between the support of minor diameter cup.
(11) as (9) described eyeglass lens processing apparatus, its medium-height trestle is provided with the hook that removes from the minor diameter cup for support.
(12) a kind of eyeglass fixed cup that is attached to the chuck axis in the eyeglass lens processing apparatus, it comprises:
The minor diameter cup, it comprises the base in the cup that is installed in chuck axis, and the minor diameter flange that is attached to base, wherein by jointing material, a surface of flange contacts with the surface of eyeglass; And
Support, it has for the opening that inserts and remove the base of minor diameter cup, and comprise the surface with diameter bigger than the flange of minor diameter cup that contacts with lens surface by jointing material, and the surface of base side that is used for being mounted to the flange of minor diameter cup.
(13) as (12) described eyeglass fixed cup, wherein jointing material is two-sided tape, and this two-sided tape has separable otch at flange and the boundary between the support of minor diameter cup.
(14) as (12) described eyeglass fixed cup, its medium-height trestle is provided with the hook that removes from the minor diameter cup for support.
Description of drawings
Fig. 1 is the schematic diagram according to eyeglass lens processing apparatus of the present invention.
Fig. 2 is the schematic diagram of lens edge location measurement unit.
Fig. 3 is the control block diagram of eyeglass lens processing apparatus.
Fig. 4 A is for the view that cup and eyeglass pressing element are described to 4B.
Fig. 5 A is for explanation minor diameter cup, support and other view to 5C.
Fig. 6 is the view for explanation monolithic devices major diameter cup.
Fig. 7 A is view about the calculating of roughing path data to 7B.
Fig. 8 is for the accurately machined view of explanation.
Fig. 9 A is view for another example of the calculating of explanation roughing path data to 9B.
Figure 10 is the view for the modification of explanation cup and eyeglass pressing element.
The specific embodiment
Referring now to accompanying drawing, will carry out following description to embodiments of the invention.Fig. 1 is the schematic diagram according to the processing part in the eyeglass peripheral edge process equipment of the present invention.
Expansion bearing base 140 is supported movably by the guide shaft 103 and 104 that is fixed on abreast on the base 170, and extends along X-direction.In addition, X-direction active motors 145 is fixed on the base 170, by rotation motor 145, moves support plinth 140 along X-direction, and moves the carriage that is supported by the guide shaft 156 and 157 that is fixed to support plinth 140 along X-direction.
Carriage 101 is supported movably by the guide shaft 156 and 157 that is fixed on abreast on the support plinth 140, and extends along Y direction.In addition, support plinth 140 is fixing with Y direction active motors 150, by rotation motor 150, along Y direction movable support bracket 101.
With reference to figure 1, chamfering mechanism 200 is disposed in this side of equipment body.At this, will be not to known chamfering mechanism 200 make description (referring to, for example, JP-A-2006-239782).
With reference to figure 1, lens edge position measurement part (lens surface position measurement part) 300F and 300R are disposed on the carriage 101.Fig. 2 is the schematic diagram about the measurement of eyeglass lens measurement part 300F, and described eyeglass lens measurement part 300F is used for measuring the lens edge position on the lens front surface.Attached support plinth 301F is fixed to support plinth piece 300a, and wherein support plinth piece 300a is fixed on the base 170 among Fig. 1.Slide block 303F is attached on the track 302F slidably, and this track 302F is fixed on the attached support plinth 301F.Sliding bottom 310F is attached to slide block 303F.Measuring piece arm 304F is fixed to sliding bottom 310F.L shaped hand 305 is fixed to measuring piece arm 304 tops, and be fixed in one's hands 305 top of measuring piece 306F.Measuring piece 306F is formed with the front-reflection surface of eyeglass LE and contacts.
The lower end of sliding bottom 310F and frame 311F fix.Frame 311F is formed the pinion 312F engagement with encoder 313F, and this encoder 313F is fixed to attached support plinth 301F.Via gear 315F, free pulley 314F and pinion 312F, the rotation of motor 316F is passed to shelf 311F, and moves sliding bottom 310F along X-direction.When measuring the lens edge position, motor 316F always tries hard to recommend moving measuring piece 306F to eyeglass LE with constant.Encoder 313F detects sliding bottom 310F along the shift position of X-direction.Utilization is about the information of shift position, about the information of the anglec of rotation of lens chuck 102L and 102R axle and along the mobile message of Y direction, measures the marginal position (comprising the lens front surface position) on the front surface of eyeglass LE.
Be used for to measure the eyeglass lens measurement part 300R of marginal portion of eyeglass LE rear surface and eyeglass lens measurement part 300F along the left and right directions symmetry, therefore be attached to " F " at the place, end of each element symbol of measure portion 300F among Fig. 2 with " R " replacement, the explanation of its structure will be omitted.
The lens edge position will be measured by this way, and wherein measuring piece 306F is formed with the front surface of eyeglass and contacts, and measuring piece 306R is formed with the rear surface of eyeglass and contacts.Under this state, based target lens shape data, carriage 101 moves along Y direction, and rotation eyeglass LE, thereby to measure the lens front surface of the processing that is used for the lens perimeter edge and the MARG of eyeglass rear surface simultaneously.
With reference to figure 1, hole processing and fluting mechanism 400 are disposed on the rear side of bracket portion 100.The structure of bracket portion 100, lens edge position measurement part 300F and 300R and hole processing and fluting mechanism 400 can be those structures described in the USP6790124 (JP-A-2003-145328), will be not to its detailed description.
Fig. 3 is the control block diagram of eyeglass peripheral edge process equipment.Control module 50 and eyeglass frame shape measuring unit 2 (its can be USP533412 (JP-A-4-93164) described in), be connected as display 5, switch element 7, memory 51, sound generator 55, bracket portion 100, chamfering mechanism 200, lens edge position measurement part 300F and 300R, hole processing and the fluting mechanism 400 of the display unit of touch-pad type and input block and other.The input signal of the equipment of giving can touch display be imported on display 5 by using felt pen (or finger).By the function of touchpad of display 5, control module 50 receives input signal, to control the image of display 5 and the demonstration of information.Switch element 7 is provided with for input processing commencing signal and begins switch 7a, to begin the processing to the lens perimeter edge.
To such structure be described below, wherein eyeglass LE is kept by chuck axis (eyeglass rotating shaft) 102L, 102R.Fig. 4 A and 4B are the views of cup and eyeglass pressing element structure, and this cup and eyeglass pressing element are used for keeping eyeglass LE by lens chuck axle 102L, 102R.Fig. 4 A is eyeglass retainer under the situation of another major diameter cup 630 that has used major diameter cup 730 as shown in Figure 6 or described after a while and the view of eyeglass pressing element.By set screw, cup 600 is attached to lens chuck axle 102L top separably.By set screw, eyeglass pressing element 610 is attached to lens chuck axle 102R top separably.In addition, by double-sided adhesive tape 620, major diameter cup 630 is fixed to the front surface of eyeglass LE.Cup 600 is to the attachment structure of lens chuck axle 102L, and eyeglass pressing element 610 is known to the attachment structure of lens chuck axle 102, will no longer describe at this.
Fig. 4 B is the view of eyeglass retainer 700 and eyeglass pressing element 710 under the situation of using the minor diameter cup of describing after a while 640.By set screw, cup 700 substitutes cup 600 and is attached to lens chuck axle 102L separably.By set screw, cup pressing element 710 substitutes eyeglass pressing element 610 and also is attached to lens chuck axle 102R separably.Compare with eyeglass pressing element 610 with the cup 600 among Fig. 4 A, cup 700 and eyeglass pressing element 710 have less diameter, and it forms respectively and has the size that equates substantially with minor diameter cup 640 (peripheral edge of the flange 642 shown in Fig. 5 B) outer dia.Therefore, have the eyeglass of narrow vertical width, even reach near the eyeglass minor diameter cup 640 minimum dimensions, also can be processed, and do not have machining interference with grinding stone.
, to 5C the structure of cup 630 is described with reference to figure 5A.Cup 630 tool dual structures, its during by the eyeglass that has little vertical size when processing the minor diameter cup 640 that adopts with and the support 650 of going up arrangement form.When minor diameter cup 640 and support 650 formed integral body, cup 630 used as the major diameter cup.Fig. 5 A shows the view that minor diameter cup 640 and support 650 are formed whole state.Fig. 5 B shows minor diameter cup 640 and support 650 view of separated state each other.Fig. 5 C is the view of seeing support 650 from the bottom.
The flange 642 of minor diameter cup 640 is oval-shaped.Can tackle the eyeglass with minimum little vertical width for the feasible plane that will be fixed to the flange 642 of eyeglass LE, the minor axis Sd642 of flange 642 is 15mm or littler, and its diameter greater than base 644 (now being 11mm).In this embodiment, minor axis Sd642 is 13.5mm.The longitudinal axis L d642 of flange 642 can have the size that equates with minor axis Sd642, but is set to be longer than the 18mm of minor axis, makes when minor diameter cup 640 is attached to cup 700 for the minor diameter cup, guarantees confining force.Formed non-flat forms district 642a on the top of flange 642.When base 644 is inserted in the jack 701, non-flat forms district 642a and the non-flat forms district 703a engagement that is formed on cup 700 tops.
The flange 656 of support 650 is oval-shaped.Heart place has formed opening 654 therein.The interior diameter d654 of opening 654 equates (about 11mm) substantially with the overall diameter d644 of the base 644 of minor diameter cup 640, thereby base 644 is inserted in the opening 654.The place forms pilot hole 652 in support 650 bottoms.Pilot hole 652 has the shape of non-flat forms, and the non-flat forms district 642a of the flange 642 of itself and minor diameter cup 640 engagement.In pilot hole 652, flange 642 assembles with predetermined relation with it.The longitudinal axis L d652 of pilot hole 652 equates substantially with the longitudinal axis L d642 of flange 642.The minor axis Sd652 of pilot hole 652 equates with the minor axis Sd642 of flange 642.By support 652 is placed on the minor diameter cup 640 by opening 654 from last, thereby flange 642 is assemblied in the pilot hole 652, support 650 and minor diameter cup 640 predefined relation therebetween form integral body.The degree of depth of pilot hole 652 is designed, and makes that the bottom of support 650 flushes substantially with the bottom of minor diameter cup 640 when minor diameter cup 640 is mounted to support 650.Therefore form the surface that whole minor diameter cup 640 can be attached to eyeglass LE as major diameter cup 630 with support 650.When only removing support 650, the minor diameter cup 640 that is fixed to eyeglass LE is left on the eyeglass.
In addition, with reference to figure 5B, the outer of opening 654 that non-flat forms district 656a is formed in flange 656 upper surfaces placed.When base 644 is inserted in the jack 601 of cup 600, be formed on the non-flat forms district 656a engagement of non-flat forms district 603a and the flange 656 on cup 600 tops.The outer peripheral of non-flat forms district 656a has the elliptical shape that has major axis in the horizontal.The length of its longitudinal axis L d656 is 20mm, and the length of its minor axis Sd656 is 17mm.The size of this Ld656 and Sd656 equates with the outer peripheral of the non-flat forms zone 756a of the complete type major diameter cup 730 shown in Fig. 6, in order to when the peripheral edge to eyeglass LE carries out roughing, can suppress desaxe.
In addition, with reference to figure 5B, (that is, in the time of in being installed to cup 600, the position that interferes with cup 600 not) formed two hooks 658 on flange 656 upper surfaces away from the position of the outer peripheral of non-flat forms district 656a.After using cup 630 to process, when removing support 650, these hooks 658 are removed the anchor clamps (not shown) by cup and hook.By using hook 658, can easily only remove the support 650 that is attached on the eyeglass LE.
Use known center instrument (blocker), by double-sided adhesive tape 620 cup 630 is attached to eyeglass LE surface, wherein in this cup, minor diameter cup 640 forms integral body with support 650.The external shape of double-sided adhesive tape 620 has the size that equates substantially with support 650 peripheral edges.When the outer peripheral of adhesive tape 620 is combined by bonding peripheral edge with support 650, forming broken crack (break) 622 with position that flange 642 outer peripheral of minor diameter cup 640 overlap substantially.Therefore, when the eyeglass LE that has only support 650 from attached cup 630 removed, because the existence in broken crack 622, the perimeter 624 of adhesive tape 620 can easily be removed with support 650.Incidentally, if eyeglass LE is negative lens, then thin and frangible near its center.Therefore, in order to reduce to be applied near the load the eyeglass LE center, having formed diameter in adhesive tape 620 centers is the hole 626 of 5mm.
When the surface of eyeglass LE has waterproof cover layer and smooth when making on the surface that double-sided adhesive tape 620 is difficult for directly bonding to eyeglass LE, gasket seal 627 is bonded to eyeglass LE surface help the bonding of adhesive tape 620.Gasket seal 627 also has its outer peripheral edge identical with adhesive tape 620, and and the broken crack 628 of adhesive tape 620 same positions.Therefore, when support 650 is removed, can be easily in the zone 629 of broken 628 outsides, crack be removed with zone 624 and the support 650 of adhesive tape 620.
With reference to figure 4A, when using cup 630, the outer peripheral shape that the peripheral edge shape of cup 600 is designed to the non-flat forms district 656a that forms with flange 656 places at support 650 conforms to substantially.The peripheral edge shape of eyeglass pressing element 610 also is designed to conform to substantially with the peripheral edge shape of cup 600.If the external margin shape of eyeglass pressing element 610 and cup 600 is very different each other, then the direction along lens chuck axle 102L, 102R will produce shear stress, make cover layer or eyeglass LE to produce and break.In order to eliminate this inconvenience, preferably, the peripheral edge shape of eyeglass pressing element 610 and cup 600 conforms to each other substantially.By cup 600 and eyeglass pressing element 610, the cup 630 that is installed in the cup 600 is kept securely by lens chuck axle 102L, 102R, wherein compares with minor diameter cup 640, and cup 630 has the bigger plane that is fixed to eyeglass LE.
Fig. 6 is the figure for the common complete type major diameter cup 730 that adopts of explanation.The shape of complete type major diameter cup 730 is identical with cup 630, and wherein cup 630 is synthetic by minor diameter cup 640 and arrangement support 650 thereon.The flange 756 of major diameter cup 730, non-flat forms district 756a, hook 758, base 744 and keyway 744a flange 656, non-flat forms zone 656a, hook 658, the base 644 with cup 630 respectively are identical with keyway 644a, will not do description at this.
Below, the process operation of the equipment by having said structure to the lens perimeter edge described.By pressing the switch of switch element 7, the target mirror plate shape data (rn, θ n) of the spectacle-frame that input is measured by eyeglass frame shape measuring unit 2 (n=1,2 ... N), and it is stored in the memory 51.In target mirror plate shape data, rn represents radius vector length, and θ n represents the radius vector angle.When input target mirror plate shape data, demonstrate the target mirror plate shape figure FT of based target lens shape data on the screen 500 of display 5.The peripheral edge shape (outer dia shape) of the peripheral edge shape data of major diameter cup 630 (major diameter cup 730 is as the same) and minor diameter cup 640 is stored in the memory 51 in advance.On the screen 500 of display 5, the cup figure CbT of the cup figure CsT of expression minor diameter cup 640 outer dias and expression major diameter cup 630 outer dias is presented on the target mirror plate shape figure FT superimposedly.
By pressing the button key 501, thereby the numeric keypad (not shown) appears so that the state of PD (interpupillary distance) value that can import the wearer to be provided.Similarly, by pressing the button key 502, provide the state of FPD (picture frame interpupillary distance) value that can import eye glass frame; By pressing the button key 503, provide the state that to import such as with respect to the design drawing data of focal centre length of target mirror plate shape geometric center etc.In addition, by pressing the button key 504, the photocentre pattern that cup is attached at the optical center of lens place can be set, perhaps cup be attached at the picture frame center mode at target mirror plate shape geometric center place.Provide position data with respect to the attached center of cup (eyeglass pivot) of target mirror plate shape to the setting of photocentre pattern and picture frame center mode.When adding man-hour to the eyeglass with narrow vertical width, select the picture frame center mode.
In addition, the predetermined button key by showing on the operation display 5 can arrange processing conditions, for example the kind of the material of eyeglass, picture frame, cooked mode (inclined-plane processing, plane processing and fluting processing) and have or do not have chamfered edge etc.When the vertical width of target mirror plate shape (eyeglass after the fine finishining) during less than the outer dia of major diameter cup 630, can cup be set by switch 514 and change a cooked mode.Change in the cooked mode at cup, after using major diameter cup 630 to finish roughing, major diameter cup 630 is replaced by minor diameter cup 640, to carry out fine finishining.
Incidentally, determine whether to arrange cup by control module 50 and change cooked mode.Based target lens shape data, with respect to the cup design drawing data (it is decided by the setting of picture frame center mode or photocentre pattern) at center of target mirror plate shape and the outer dia data that are stored in the major diameter cup 630 in the memory 51, whether extended beyond the target mirror plate shape and produced machining interference thereby control module 50 calculates major diameter cups 630.When having produced machining interference, this fact will be displayed on the display 5.And the position relation according between the target mirror plate shape FT on the screen 500 that is presented at display 5 and the cup figure CbT can determine the operator whether cup should be set and change cooked mode.
To describe normal process operation, wherein the outer dia of major diameter cup 630 is not outstanding from the target mirror plate shape, thereby production process is not interfered.Imported process required data after, the operator is by the cup 600 on the lens chuck axle 102L and the eyeglass pressing element 610 on the lens chuck axle 102R, use major diameter cup 630 or 730 to clamp eyeglass LE, thereby and the beginning switch 7a that presses switch element 7 start (actuate) equipment.Control module 50 response commencing signal operational measure part 300F, 300R, and based target lens shape data are measured the marginal position on eyeglass LE front surface and the rear surface.Under the situation of inclined-plane cooked mode, for example, along the summit, inclined-plane of identical longitudinal direction and two some places of bottom, inclined-plane, measure marginal position.Behind the marginal position that obtains lens front surface and eyeglass rear surface, according to preset program, based target lens shape data and marginal position information, control module 50 obtains to be formed on inclined-plane path data on the eyeglass LE as the fine finishining path.In the inclined-plane path data, the summit, inclined-plane is disposed on the whole radius vector, makes with edge thickness with predetermined ratio separately.And (for example, 1mm), control module 50 obtains the roughing path by increase predetermined allowance for finish along the radius vector direction from the fine finishining path.
According to the roughing path data, the movement of control module 50 control carriages 101 and the rotation of eyeglass LE are to use roughing grinding stone 162a to being carried out roughing by the peripheral edge of the eyeglass LE of lens chuck axle 102L and 102R maintenance.Then, according to the inclined-plane path data, control module 50 control carriages 101 are mobile at the inclined-plane path data, carry out inclined-plane fine finishining with the peripheral edge that uses the eyeglass LE of fine finishining grinding stone 162b.
Below, will the situation that be provided with cup replacing cooked mode be described.Cup 630 is arranged on the unprocessed eyeglass LE surface by known center instrument in advance.The operator is installed in eyeglass LE in the cup 600 of lens chuck axle 102L together with cup 630, and by the lens chuck axle 102B with eyeglass pressing element 610 it is clamped, thereby and presses the beginning switch 7a starting device of switch element 7.
Behind input processing commencing signal, before roughing, whether satisfy the processing dimension at lens perimeter edge for the diameter of confirming undressed eyeglass LE, control module 50 starts measure portion 300F, the 300R of based target lens shape data, so that the marginal position on eyeglass LE front surface and the rear surface is measured.At this moment, based target lens shape data are measured measuring route in scope, and described scope refers to avoid the interference range of measuring piece 306F, 306R and major diameter cup 630, perhaps additionally also can be the roughing paths of describing after a while.Can avoid scope that measuring piece 306F, 306R and major diameter cup 630 interfere by control module 50 according to data computation, described data comprise the design drawing data (being determined by picture frame center mode or photocentre pattern) at target mirror plate shape data, the cup center relative with it and are stored in the outer dia data of the interior major diameter cup 630 of memory 51.In addition, in order to shorten the Measuring Time of this moment, the radius vector extension position of measuring distance optical center of lens target mirror plate shape data farthest.By the design drawing data that the altitude information at the photocentre place of PD, FPD and the target mirror plate shape relative with its geometric center is formed, can obtain the radius vector length data of the target mirror plate shape data relative with the photocentre of eyeglass.Incidentally, if the geometric center of target mirror plate shape is different with the eyeglass pivot, target mirror plate shape data will be used as the shape data with reference to the conversion of eyeglass pivot.
If the result to the lens edge position measurement is that optic diameter is short, then display 5 shows this fact information by way of caution.If optic diameter is enough, then control module 50 calculates the roughing path data subsequently, to use roughing tool the peripheral edge of undressed eyeglass is carried out roughing.
, will describe calculating the roughing path data to 7B with reference to figure 7A.In Fig. 7 A, reference number 800 expression target mirror plate shapes, reference number 630T are represented the outer dia (cup outer dia) of major diameter cup 630.Make the center (eyeglass pivot) of outer dia 630T consistent with the geometric center FC of target mirror plate shape 800.Target mirror plate shape 800 is fine finishining paths of target mirror plate shape.Arrange first path 802 radius vector (rn+ Δ d, θ n) (n=1,2 ..., N), it increases predetermined allowance Δ d with respect to the radius vector data (rn, θ n) of center FC along the radius vector direction from target mirror plate shape 800.Interfere with the attached cup of giving prominence to from target mirror plate shape 800 630 for fear of roughing grinding stone 162a, radius vector data (Trn+ Δ d, θ n) (n=1,2 in second path 804 are set, ..., N), it is by along being the radius vector direction of reference with center FC, at the radius vector data (Trn of cup outer dia 630T, θ n) (n=1,2 ..., N) go up to increase predefined distance, delta d and obtain.As the roughing path, adopt the outermost path of being synthesized by first path 802 and second path 804.Yet, when the some 802a, 802b, 802c and the 802d that attempt to use roughing grinding stone 162a with radius r 162 that first path 802 and second path 804 are intersected add man-hour, grinding stone 162a has surpassed first path 802 that surrounds them and second path 804 and has interfered with cup 630.For fear of this situation, shown in Fig. 7 B, the radius vector (Rrn of calculating path 810, θ n) (n=1,2 ..., N) as the roughing path, make the roughing grinding stone 162 with radius r 162 contact with the outermost path that synthesize in first path 802 and second path 804.
According to the roughing path data that calculates, the movement of control module 50 control carriages 101 and the rotation of eyeglass LE are carried out roughing to use the lens perimeter of roughing grinding stone 162a edge.In the roughing process, because the rotation of eyeglass and the revolving force of roughing grinding stone 162a, away from the lens perimeter edge at eyeglass anchor clamps center bearing bigger torque.Yet, because eyeglass LE is kept by lens chuck axle 102L and 102R by having large diameter cup 630, so can guarantee its confining force.Therefore, can be suppressed at the desaxe that is caused by roughing grinding stone 162a in the roughing.
One finishes roughing, and control module 50 just stops the processing to the lens perimeter edge, and finishes by screen 500 and sound generator 55 notifying operation person roughing.When the operator pressed the switch of switch element 7, lens chuck axle 102R opened, so that eyeglass LE removes from nipped state.The operator takes out eyeglass LE together with cup 630, and uses cup peel jig (not shown) to remove the perimeter 624 of support 650, double-sided adhesive tape and the perimeter 629 of gasket seal from cup 630.This provides a kind of like this state, namely has only minor diameter cup 640 to be fixed to eyeglass LE.
In addition, the cup 600 that the operator will be installed in the lens chuck axle 102L is replaced with cup 700, and the eyeglass retainer 610 that will be installed in the chuck axis 102R is replaced with eyeglass retainer 710.Then, the operator fixes with chuck by the eyeglass LE that lens chuck axle 102L and 102R will replace minor diameter cup 640, presses the beginning switch of switch element 7 then, with starting device.
When after finishing roughing, re-entering the processing commencing signal, control module 50 starts lens shape measure portion 300F, 300R, with based target lens shape data (as the target mirror plate shape 800 among Fig. 7 A), measure the marginal position on lens front surface and rear surface.Under the situation of plane cooked mode, target mirror plate shape data are converted into the fine finishining path data.Under inclined-plane cooked mode situation, the inclined-plane path data that is formed on the eyeglass LE of based target lens shape data and marginal position information is calculated as the fine finishining path.And, if be provided with chamfered edge, based on the marginal position information of lens front surface and rear surface, the chamfered edge path is calculated.
When having obtained the fine finishining path, based on this fine finishining path, control module 50 has been replaced the minor diameter cup and has been come the peripheral edge of eyeglass is carried out fine finishining.In this case, two kinds of method for fine finishing are arranged.In first method, as shown in Figure 8, using roughing grinding stone 162a, after the remaining area 820 (when zone when being deducted from roughing path 810, first path 802) that has increased allowance for finish Δ d from target mirror plate shape 800 of 802 outsides, path processed, by using fine finishining grinding stone 162b the residue allowance for finish is processed.Based on path 802, the movement of control module 50 control carriages 101 and the rotation of eyeglass LE, thus use roughing grinding stone 162a again remainder 820 to be processed.In the case, be attached to eyeglass LE though have the minor diameter cup of little attachment area, the distance of remainder 820 (eyeglass pivot) FC from the cup center is also enough short and torque that be applied to process on the eyeglass is also little.Therefore, even in the roughing of using coarse-grained stone 162a, also can suppress the generation of desaxe.After the processing of finishing zone 820, then, based on the fine finishining path data that is obtained by target mirror plate shape data and other, by using fine finishining grinding stone 162b, the movement of control module 50 control carriages 101 and the rotation of eyeglass LE are carried out fine finishining with the peripheral edge to eyeglass LE.
In second processing method, the whole zone that comprises remaining area 820 uses fine finishining grinding stone 162b to process.Based on the fine finishining path data, the movement of control module 50 control carriages 101 and the rotation of eyeglass LE, thereby by using the eyeglass LE of fine finishining grinding stone 162b peripheral edge to carry out fine finishining.In fine finishining, by detecting the electric current of grinding stone rotation motor 160, in this case, to compare with first method, zone 820 exceedingly uses fine finishining grinding stone 162b to process, and makes the revolution of eyeglass LE increase, thereby increases a little process time.Yet, because the zone is 820 less, thus with first method in the roughing time compare with the total amount of fine finishining time, do not have a great difference process time.
Incidentally, the processing stage according to zone 820 can optionally adopt first method or second method.Based in the zone, when path 802 being deducted from path 810, and the lens thickness from the measurement result of lens front surface and rear surface marginal position is obtained, can be schematically the processing stage in zone 820 be calculated.
In addition, above-mentioned method for calculating roughing path data preferably reduces to remain shape by initial roughing to greatest extent.The method that is used for calculating roughing data is not limited only to this method.For example, as shown in Fig. 9 A, the radius vector length Rbn (n=1 in second path 804,2 ..., N) can be set to larger than the radius vector length T rn of the outer dia 630T of major diameter cup 630, it is from the attached center FC of the cup that is used for target mirror plate shape 800, and within distance R A scope, wherein distance R A can prevent from producing desaxe in roughing or fine finishining, and wherein cup 630 is substituted by minor diameter cup 640 during fine finishining.When employing had the minor diameter cup 640 of 15mm or shorter (being 13.5mm in the present embodiment) minor axis Sd642, if distance R A is 25mm or shorter, the torque load(ing) that then is applied to eyeglass LE when the machining lens peripheral edge was little, thereby can suppress desaxe.Incidentally, illustrated that distance R A is 25mm to the maximum.Yet if can increase the degree that allows desaxe, distance R A also can increase.Second path 804 can be arbitrary shape, and is for example oval.In the example of Fig. 9 A, the radius vector length Rbn in second path 804 is long unlike distance R A, and longer than the maximum gauge 15mm of major diameter cup 630.Radius vector length Rbn among Fig. 9 A is set to the constant distance 16mm around center FC.As shown in Fig. 9 B, calculate roughing path 810 as path 810 radius vector (Rrn, θ n) (n=1,2 ..., N), make the roughing grinding stone 162 with radius r 162 contact with the outermost path of being synthesized by first path 802 and second path 804.
The example that use is comprised minor diameter cup 640 and support 650 dual structures is described above.Yet the cup that can adopt is not limited to above-mentioned cup.For example, can substitute cup 630 and finish roughing by using integer cup 730, after complete type cup 730 is removed from eyeglass LE, use center instrument fixing minor diameter cup 640 again.Yet in this case, because cup is fixed to eyeglass LE by twice, the attachment location precision worsens, and has increased operator's work.Otherwise, have the cup 630 to the dual structure shown in the 5C as Fig. 5 A if adopt, can save and use center instrument that minor diameter cup 640 is placed into the work at center, thereby suppress the generation of the attachment location mistake that causes owing to the center that repeatedly is placed into.Therefore, can realize that pinpoint accuracy ground is to the processing at lens perimeter edge.
In addition, in the present embodiment, the cup 600 and the eyeglass pressing element 610 that are used for cup 630 are used to substitute than cup 700 and the eyeglass pressing element 710 of cuvette 640.Below with reference to Figure 10 the modification of this mode is described.
When adopting cup 630, the cup support 900 with diameter corresponding with cup 630 is installed in the bottom for the cup 700 of minor diameter cup 640.Support 900 has cylindrical structural, wherein is provided with non-flat forms district 901, is used for being assembled to the non-flat forms district 703a that is formed on cup 700 tops.Therefore, after support 900 is installed on the cup 700, can reduce cup 700 and support 900 skew to each other.The non-flat forms district 656a of the flange 656 of cup 630 is mounted to the non-flat forms district 903 that is formed on support 900 tops.Therefore, be installed in support 900 on the cup 700 and can realize the function the same with cup 600.
In addition, similarly, be installed on the eyeglass pressing element 710 by the eyeglass pressing element support 910 that will have with support 900 essentially identical peripheral shape, support 910 can be realized and eyeglass pressing element 610 identical functions.
By this way, by using cup support 900 and eyeglass pressing element support 910, can alleviate cup 600 and 700 and eyeglass pressing element 610 and 710 between the work of replacing.
So far, be illustrated in by the eyeglass processing of use grinding stone 162 as machining tool, suppressing desaxe.Yet the scope of using cup replacing procedure schema is not limited to above-described embodiment.For example, cup is changed procedure schema can be applied to such situation, and wherein machining tool adopts end mill(ing) cutter (for example, US-2006-0240747-A1 (JP-A-2006-281367)), because also be subjected to the puzzlement of desaxe in this case.
Claims (6)
1. one kind is used for the eyeglass lens processing apparatus that based target lens shape data are processed the eyeglass peripheral edge, comprising:
Roughing tool;
Finisher;
First lens chuck and second lens chuck are used for keeping described eyeglass;
Motor is used for described first lens chuck and second lens chuck are rotated synchronously with one another;
Major diameter cup and minor diameter cup, it is used for being secured to by double-sided adhesive tape the front surface of described eyeglass;
First cup and second cup, it is attached to the top of described first lens chuck by set screw, wherein when using the major diameter cup, first cup is attached to described first lens chuck, and when using the minor diameter cup, second cup is attached to described first lens chuck;
The first eyeglass pressing element and the second eyeglass pressing element, it is attached to the top of described second lens chuck by set screw, wherein when using the major diameter cup, the first eyeglass pressing element is attached to described second lens chuck, and when using the minor diameter cup, the second eyeglass pressing element is attached to described second lens chuck;
Mode setting unit, this mode setting unit arranges cup and changes cooked mode, change in the cooked mode at described cup, in process, be used for keeping the described major diameter cup of described eyeglass to be replaced with described minor diameter cup by described first and second lens chuck;
Measuring unit is for the marginal position of the front surface of measuring described eyeglass and the marginal position of rear surface;
Control module, when described cup replacing pattern is set up, described control module calculates the first roughing path data, the described first roughing path data is than the big predetermined allowance for finish of described target mirror plate shape data, and the radius vector data based on the described first roughing path data and described major diameter cup, calculate the second roughing path data, its radius vector is the outer dia data Δ a greatly at least of described major diameter cup at least than the radius vector data of described major diameter cup, wherein Δ a is the length of avoiding the machining interference between described roughing tool and the described major diameter cup to arrange, and calculate the 3rd roughing path data, described the 3rd roughing path data has radius vector, the outermost path that makes roughing grinding stone and the first roughing path and the second roughing path synthesize contacts
Described control module based on described the 3rd roughing path data, uses described roughing tool that the peripheral edge of the described eyeglass that is fixed to described major diameter cup is carried out roughing in response to the processing commencing signal, stops described processing thereafter, and
After stopping described processing, when input processing restoring signal, described control module starts measuring unit with based on the marginal position of the front surface of the described eyeglass of described target mirror plate shape DATA REASONING and the marginal position of rear surface, under the situation of plane cooked mode, obtain the fine finishining path data by the described target mirror plate shape data of conversion then, and under the situation of inclined-plane cooked mode, obtain the fine finishining path data based on described target mirror plate shape data and measured marginal position data, and use described roughing tool replace the peripheral edge of the described eyeglass that has used described minor diameter cup based on the described first roughing path data roughing after based on described fine finishining path data, use described finisher that the peripheral edge of the described eyeglass that is fixed to described minor diameter cup is carried out fine finishining, perhaps use described finisher based on the remainder based on the processed mistake of described the 3rd roughing path data of the peripheral edge of the described eyeglass of described fine finishining path data fine finishining.
2. eyeglass lens processing apparatus as claimed in claim 1, wherein said control module calculates the described second roughing path data, make the radius vector of the described second roughing path data be no more than ultimate range, described ultimate range is based on the torque load(ing) that is applied to eyeglass during the processing of using the minor diameter cup and definite.
3. eyeglass lens processing apparatus as claimed in claim 1, wherein:
Described control module will be stored in the described memory described major diameter cup the radius vector data with compare based on the radius vector data after the fine finishining of described target mirror plate shape digital simulation, to determine whether to have taken place described machining interference; And
Described eyeglass lens processing apparatus comprises display unit, is used for showing determined result when described machining interference takes place.
4. eyeglass lens processing apparatus as claimed in claim 1 further comprises the cup support corresponding with the size of described major diameter cup, and this cup support is mounted to described second cup, and can separate from this second cup, and
The described cup support that is assemblied in described second cup has and the described first cup identical functions.
5. eyeglass lens processing apparatus as claimed in claim 1 further comprises the eyeglass pressing element support corresponding with the size of described major diameter cup, and this eyeglass pressing element support is mounted to the described second eyeglass pressing element, and can separate from this second eyeglass pressing element, and
The described eyeglass pressing element support that is assemblied in the described second eyeglass pressing element has and the described first eyeglass pressing element identical functions.
6. eyeglass lens processing apparatus as claimed in claim 1, wherein said major diameter cup comprises:
Described minor diameter cup, it comprises the base that is installed in described second cup and the minor diameter flange that is attached to described base, a surface of described flange contacts with the surface of described eyeglass by jointing material; And
Support, have for the opening that inserts and remove the described base of described minor diameter cup, and has the surface that contacts with the described surface of described eyeglass by jointing material, this surperficial diameter is greater than the diameter of the described flange of described minor diameter cup, and described support has the surface that cooperates with the base side of the described flange of described minor diameter cup.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2007-086029 | 2007-03-28 | ||
| JP2007086028A JP5073338B2 (en) | 2007-03-28 | 2007-03-28 | Lens fixing cup |
| JP2007-086028 | 2007-03-28 | ||
| JP2007086029A JP5172190B2 (en) | 2007-03-28 | 2007-03-28 | Eyeglass lens processing equipment |
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| CN101274415A CN101274415A (en) | 2008-10-01 |
| CN101274415B true CN101274415B (en) | 2013-07-10 |
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| CN101412578B (en) * | 2008-10-30 | 2010-12-15 | 王魁良 | Horizontal glasses lens mould opening machine |
| DE102010010338A1 (en) * | 2010-03-04 | 2011-09-08 | Schneider Gmbh & Co. Kg | auto calibration |
| JP2011206901A (en) * | 2010-03-30 | 2011-10-20 | Hoya Corp | Holder storage structure of lens layout and block device |
| JP2011206902A (en) * | 2010-03-30 | 2011-10-20 | Hoya Corp | Holder supplying device of lens layout and block device |
| JP5976270B2 (en) * | 2010-09-30 | 2016-08-23 | 株式会社ニデック | Eyeglass lens processing equipment |
| CN102837241A (en) * | 2011-06-23 | 2012-12-26 | 苏州五方光电科技有限公司 | Clamp for rounding lens |
| FR3016049B1 (en) * | 2013-12-30 | 2017-05-19 | Essilor Int | APPARATUS, ACCESSORY AND METHOD FOR DETERMINING THE DIAMETER OF A GLASS INTENDED TO BE MOUNTED ON A FRAME OF GLASSES OR FOR CONTROLLING THE MOUNTING OF A GLASS OF GLASSES ON A FRAME OF GLASSES |
| JP6766400B2 (en) * | 2016-03-28 | 2020-10-14 | 株式会社ニデック | Eyeglass lens processing equipment and eyeglass lens processing program |
| CN105823448A (en) * | 2016-03-29 | 2016-08-03 | 韩金桥 | Grinding workpiece online detection method |
| CN107953189A (en) * | 2017-08-25 | 2018-04-24 | 上海嫦娥光学仪器科技有限公司 | Glasses lens edge polishing scans integral machine |
| CN113386270B (en) * | 2021-08-18 | 2021-10-15 | 南通山森光学科技有限公司 | Shearing machine for lens production and processing |
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| CN1449891A (en) * | 2002-04-08 | 2003-10-22 | 保谷株式会社 | Apparatus for processing lens |
| CN1494981A (en) * | 2002-09-20 | 2004-05-12 | 株式会社拓普康 | Lens grinding device |
| CN1764518A (en) * | 2003-03-27 | 2006-04-26 | 埃西勒国际公司 | Method for trimming a spectacle lens |
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| JPH08197470A (en) * | 1995-01-18 | 1996-08-06 | Toyota Auto Body Co Ltd | Vacuum suction cup |
| JP4092487B2 (en) * | 2003-04-03 | 2008-05-28 | 日産自動車株式会社 | Adsorption device |
| JP4167195B2 (en) * | 2004-03-11 | 2008-10-15 | 株式会社トプコン | Lens holding device |
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| CN1449891A (en) * | 2002-04-08 | 2003-10-22 | 保谷株式会社 | Apparatus for processing lens |
| CN1494981A (en) * | 2002-09-20 | 2004-05-12 | 株式会社拓普康 | Lens grinding device |
| CN1764518A (en) * | 2003-03-27 | 2006-04-26 | 埃西勒国际公司 | Method for trimming a spectacle lens |
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| JP5073338B2 (en) | 2012-11-14 |
| CN101274415A (en) | 2008-10-01 |
| JP2008238377A (en) | 2008-10-09 |
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