CN1223436C - Grinding method and device for optic lens - Google Patents
Grinding method and device for optic lens Download PDFInfo
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- CN1223436C CN1223436C CN 02138895 CN02138895A CN1223436C CN 1223436 C CN1223436 C CN 1223436C CN 02138895 CN02138895 CN 02138895 CN 02138895 A CN02138895 A CN 02138895A CN 1223436 C CN1223436 C CN 1223436C
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- grooving
- mill
- lens
- anchor clamps
- profile
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Abstract
The present invention relates to a method and a device for grinding and processing an optical lens, particularly to a non spherical lens. A lens to be processed is fastened on a clamping device, a grinding disc is arranged by corresponding to the clamping device, a shaping groove in the shape of a straight groove, and a circular arc groove or a circumferential groove is arranged on the grinding disc. The outline of the cross section of the shaping groove corresponds to the outline of a curved surface of the lens to be processed, and the lens enters the shaping groove of the grinding disc to lead an axial line of the clamping device to be consistent with a symmetrical axial line of the shaping groove. The grinding disc and the lens move backwards and forwards in a straight line mode, or run backwards and forwards in the circular arc mode, or run in a circumference mode by corresponding to the shaping groove. Simultaneously, the lens surrounds the axial line of the lens to rotate, and feeds in the axial direction until the outline of the surface of the lens is jointed with the outline of the shaping groove. Then, the grinding and processing of the lens are completed. The processing method and the device of the present invention have the advantages of convenience and low manufacturing cost; in addition, the present invention completely can be used for mass production and industrialization scale production, and solves the technological problem that the non spherical lens is difficult to process for a long term in the field of optical instruments.
Description
Technical field
The present invention relates to a kind of method and device that optical mirror slip, particularly aspherical lens is carried out attrition process.
Background technology
The function of optical instrument is to expand the visual capacity of human eye, changes the trend naturally of light.Optical system is the core in the optical instrument, is made of toroidal lens and planar optics, and these lens and eyeglass must be shaped through attrition process as the optical element of precision.The existing Ginding process that is used for the processing curve lens is " to grinding " method, it is that mill by (circle) sphere rotates at a high speed and the forming around heart rotation of eyeglass, because sphere has or not several symmetry axis, so adopt " to grinding ", can finish the task of spherical lens processing preferably, this good processing properties is the major reason that is widely used for a long time of spherical lens just.But " to grinding " method then is helpless to the processing aspherical lens.With regard to the image quality of optical system, spherical lens (eyeglass) is not to be very good on convergence and divergence characterization, still exists some bad influence and factors, and " spherical aberration " is one of them.Relative spherical lens, the advantage of non-spherical lens are that it places the diverse location of optical system can distinguish the spherical aberration of corrective system, and aberrations such as rugged change, astigmatism improve the definition of imaging; It can reduce the number of spare parts of whole system, reduces the luminous energy loss; It can also reduction system size, thereby save wide variety of materials and artificial, when improving image quality, reduce cost.Yet the surface of non-spherical lens is a high order curved surface, has only a symmetry axis usually, and the radius of curvature of curved surface each several part does not wait, thereby can't resemble the method processing of using " to grinding " the spherical lens.At present, though had the processing method of some non-spherical lenses, as form grinding method, profile copy grinding method, die pressing etc., but it is too low that these processing methods are not working (machining) efficiencies, the equipment that is exactly processing is too expensive, can not form industrialization production and processing, make that high accuracy aspherics eyeglass is not used so far yet widely non-spherical lens.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that exists at above-mentioned prior art and provide a kind of and be suitable for various symmetroids, especially be suitable for method and the device that the aspherics eyeglass carries out attrition process.
The technical scheme of Ginding process of the present invention is: processed eyeglass is fastened on the anchor clamps, makes their centerings, and processed eyeglass and anchor clamps can be around the axis rotations of self; Corresponding to anchor clamps mill is set, offers the grooving of straight trough shape or circular arc flute profile or circumference flute profile on the mill, the cross section profile of grooving is corresponding with the curved surface profile of processed eyeglass; Inject grinding agent in the grooving, eyeglass enters the grooving of mill, makes the axis of anchor clamps consistent with the axis of symmetry of grooving; Corresponding to grooving, the linear reciprocation of doing that mill is relative with eyeglass is moved, or circular arc back and forth moves, or circumferential running, eyeglass is around self axis rotation and axial feed simultaneously, carry out thus eyeglass and mill to grinding, fit until lens surface profile and grooving profile, promptly finish the attrition process of eyeglass.
Press such scheme, the cross section profile of described grooving can be identical with the curved surface profile of processed minute surface, or be super semi-surface profile; The axis of described anchor clamps overlaps with the axis of symmetry of grooving; The grooving and the grinding agent that adopt unlike material to make can be suitable for the grinding and the polishing of eyeglass respectively.
The technical scheme of lapping device of the present invention is: include mill and anchor clamps, its difference is to offer on the mill and the corresponding grooving of the curved surface profile of processed eyeglass, the axis of anchor clamps is consistent with the axis of symmetry of grooving, mill links to each other with a rotation or reciprocating drive unit, and anchor clamps are connected with feed arrangement.
Press such scheme, be provided with the reconditioning knife rest, be installed on the reconditioning cutter on the reconditioning knife rest corresponding to the grooving of mill; Described grooving is straight trough shape or circular arc flute profile or circumference flute profile; Described feed arrangement is a swivel feeding device.
Beneficial effect of the present invention is: the method and apparatus that 1, a kind of reliable, effective attrition process aspherics eyeglass is provided; 2, processing method of the present invention and install easyly, cost of manufacture is low, can be used for mass, industrial-scale production fully, has solved the long-standing technical barrier that is difficult to process aspherical lens of optical instrument field; 3, the present invention also can be used for making spheric glass.
Description of drawings
Fig. 1 is an example structure figure of apparatus of the present invention.
Fig. 2 is second example structure figure of apparatus of the present invention.
Fig. 3 is the 3rd the example structure figure of apparatus of the present invention.
Fig. 4 is the 4th the example structure figure of apparatus of the present invention.
Fig. 5 is the structure chart of grooving in apparatus of the present invention.
Fig. 6 is another structure chart of grooving in apparatus of the present invention.
The specific embodiment
Further describe embodiments of the invention below in conjunction with accompanying drawing.
As shown in Figure 1, be a kind of vertical lapping device, include a discoidal mill 2, support frame 9, the mill upper surface offers the grooving 1 of circumferential, the cross section contour of grooving can be high order curve parabola shaped or other tool symmetry axis, grooving can adopt cast iron or cast copper to make, be suitable for grinding, also available pitch is made the polishing (fine abrasive) to be used for eyeglass, be furnished with strip or netted lines in the groove, to strengthen grainding capacity, the lower end of mill links to each other with a rotating driving device 3, a side is installed on anchor clamps 4 above mill, the front end of anchor clamps is fixed with processed eyeglass 10, the rear end of anchor clamps links to each other with a swivel feeding device 5 and the rotation of this swivel feeding device and the center line (axis of symmetry) of grooving profile coincide, rolling clamp can be provided with 2～4 and be installed on the switching mechanism, so that add grinding by turns of man-hour, the opposite side correspondence is provided with reconditioning knife rest 7 above mill, reconditioning knife rest front end is equipped with reconditioning cutter 6, and the cutting edge of reconditioning cutter is the form-cutting sword, and is identical with the profile phase of grooving, the rear end of reconditioning knife rest and an auto-feeder 8 join, so that automatically grooving is carried out reconditioning.Because the vertical installation of mill during attrition process, can be filled with lapping liquid in grooving, process the barreling eyeglass, can improve machining accuracy.Present embodiment can be made into small-sized mill, and as shown in Figure 5, its main feature is that grooving 1 is the super semi-surface profile of interior annular distance formula, mill 2 rotation at a high speed, and grind spectacle lens 10 is shaped.Also can be made into grooving 1 and be the super semi-surface profile of external circular type, as shown in Figure 6, mill one side is installed reconditioning cutter 6.
As shown in Figure 2, be a kind of horizontal lapping device, the axis horizontal of mill 2 is installed, offer the grooving 1 of circumferential in the periphery of mill, the grooving cross section profile is super semi-surface profile, one side of mill links to each other with rotating driving device 3, the rotation of drive mill, outside mill Monday side support frame 9 on be installed on anchor clamps 4, the rear end of anchor clamps links to each other with a whirligig 5 and the rotation of anchor clamps and the center line (axis of symmetry) of grooving profile coincide, opposite side in the mill periphery is equipped with reconditioning knife rest 7, the rear end of reconditioning knife rest and an auto-feeder 8 join, and are equipped with reconditioning cutter 6 on the reconditioning knife rest, and the reconditioning cutter is the sharp knife shape, move by fixing profile traces during reconditioning, other structure of present embodiment is identical with a last embodiment.
As shown in Figure 3, include the mill 2 of bar shaped, offer the grooving 1 of straight trough shape on the mill, the cross section profile of grooving can be whole lens curve profile, or be super semi-surface profile, the below of mill links to each other with a straight line reciprocating drive unit 3a, installs anchor clamps 4 corresponding to grooving above mill, and anchor clamps and swivel feeding device 5 join, to drive the anchor clamps rotation, rolling clamp can be provided with 2, and connects with a switching mechanism, and whole device all is installed on the support frame 9.
As shown in Figure 4, the main difference part of it and the 3rd embodiment is that anchor clamps 4 and translation feed mechanism 5a link, not rotation of anchor clamps itself, and an other parts structure and a last embodiment are basic identical, it is used for non-rotating eyeglass, as the attrition process of prism, cylindrical mirror.
Claims (10)
1, a kind of Ginding process of optical mirror slip is characterized in that processed eyeglass is fastened on the anchor clamps, makes their centerings, and processed eyeglass and anchor clamps can be around the axis rotations of self; Corresponding to anchor clamps mill is set, offers the grooving of straight trough shape or circular arc flute profile or circumference flute profile on the mill, the cross section profile of grooving is corresponding with the curved surface profile of processed eyeglass; Inject grinding agent in the grooving, eyeglass enters the grooving of mill, makes the axis of anchor clamps consistent with the axis of symmetry of grooving; Corresponding to grooving, the linear reciprocation of doing that mill is relative with eyeglass is moved, or circular arc back and forth moves, or circumferential running, eyeglass is around self axis rotation and axial feed simultaneously, carry out thus eyeglass and mill to grinding, fit until lens surface profile and grooving profile, promptly finish the attrition process of eyeglass.
2, a kind of lapping device of optical mirror slip, include mill and anchor clamps, it is characterized in that offering on the mill and the corresponding grooving of the curved surface profile of processed eyeglass, the axis of anchor clamps is consistent with the axis of symmetry of grooving, mill links to each other with a rotation or reciprocating drive unit, and anchor clamps are connected with feed arrangement.
3, by the lapping device of the described optical mirror slip of claim 2, it is characterized in that being provided with the reconditioning knife rest, be installed on the reconditioning cutter on the reconditioning knife rest corresponding to the grooving of mill.
4, by the lapping device of claim 2 or 3 described optical mirror slips, it is characterized in that described grooving is straight trough shape or circular arc flute profile or circumference flute profile.
5, by the lapping device of claim 2 or 3 described optical mirror slips, it is characterized in that described feed arrangement is a swivel feeding device.
6, press the lapping device of the described optical mirror slip of claim 5, the rear end that it is characterized in that anchor clamps links to each other with a swivel feeding device and the rotation of this swivel feeding device and the center line of grooving profile coincide, and rolling clamp is provided with 2～4 and be installed on the switching mechanism.
7, by the lapping device of the described optical mirror slip of claim 3, it is characterized in that the rear end of reconditioning knife rest and an auto-feeder (8) join.
8, press the lapping device of claim 2 or 3 described optical mirror slips, it is characterized in that having a discoidal mill (2), the mill upper surface offers the grooving (1) of circumferential, grooving can adopt cast iron or cast copper or pitch to make, be furnished with strip or netted lines in the groove, the lower end of mill links to each other with a rotating driving device (3).
9, by the lapping device of claim 2 or 3 described optical mirror slips, it is characterized in that the periphery at mill (2) offers the grooving (1) of circumferential.
10, press the lapping device of claim 2 or 3 described optical mirror slips, it is characterized in that including the mill (1) of bar shaped, offer the grooving (2) of straight trough shape on the mill, the cross section profile of grooving can be whole lens curve profile, or be super semi-surface profile, the below of mill links to each other with a straight line reciprocating drive unit (3), above mill, install anchor clamps (4) corresponding to grooving, anchor clamps and whirligig (5) join, to drive the anchor clamps rotation, rolling clamp can be provided with 2, and connects with a switching mechanism, and whole device all is installed on the support (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02138895 CN1223436C (en) | 2002-08-07 | 2002-08-07 | Grinding method and device for optic lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02138895 CN1223436C (en) | 2002-08-07 | 2002-08-07 | Grinding method and device for optic lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1473687A CN1473687A (en) | 2004-02-11 |
| CN1223436C true CN1223436C (en) | 2005-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02138895 Expired - Fee Related CN1223436C (en) | 2002-08-07 | 2002-08-07 | Grinding method and device for optic lens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890670A (en) * | 2010-07-09 | 2010-11-24 | 厦门大学 | Pneumatic non-spherical processing clamp with adjustable inclination angle |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2852877B1 (en) * | 2003-03-27 | 2005-05-06 | Essilor Int | METHOD FOR DETOURING A GLASS OF A GLASSES |
| CN100542741C (en) * | 2005-07-06 | 2009-09-23 | 鸿富锦精密工业（深圳）有限公司 | Rolling circle smelting tool |
| CN101537587B (en) * | 2009-04-29 | 2010-10-13 | 凤凰光学(广东)有限公司 | Clamp for grinding optical lens |
| CN101767312B (en) * | 2010-02-23 | 2011-11-16 | 厦门大学 | Wedge-type inclination adjustable non-spherical machining clamp |
| CN102275144B (en) * | 2011-09-01 | 2013-08-14 | 西北工业大学 | Grinding head forming method used for polishing blisk |
| CN102513899B (en) * | 2011-12-31 | 2013-09-18 | 哈尔滨工业大学 | Single-direction inclined-shaft profiling precision grinding method of array optical elements of micro circular troughs |
| CN103831692B (en) * | 2012-11-22 | 2016-08-03 | 福州高意通讯有限公司 | A kind of manufacture method of optical waveguide device |
| CN111633509B (en) * | 2020-06-04 | 2022-04-05 | 深圳市国林光学有限公司 | Virtual practical lens polishing equipment |
-
2002
- 2002-08-07 CN CN 02138895 patent/CN1223436C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890670A (en) * | 2010-07-09 | 2010-11-24 | 厦门大学 | Pneumatic non-spherical processing clamp with adjustable inclination angle |
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| Publication number | Publication date |
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| CN1473687A (en) | 2004-02-11 |
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| CI01 | Publication of corrected invention patent application |
Correction item: Application Date Correct: 20020807 False: 20000323 Number: 6 Volume: 20 Correction item: Divisional application number False: 00103294.1 Number: 6 Volume: 20 |
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Correction item: Divisional application number False: 00103294.1 Number: 6 Page: The title page Volume: 20 Correction item: Application Date Correct: 20020807 False: 20000323 Number: 6 Page: The title page Volume: 20 |
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Owner name: SHANGHAI WEIZHAO OPTICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LIU KANG Effective date: 20100416 |
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Free format text: CORRECT: ADDRESS; FROM: 201800 FINANCE SECTION,CADRE ACADEMY OF SCIENCE AND TECHNOLOGY MANAGEMENT, NO.37, CHENGZHONG ROAD, JIADING DISTRICT, SHANGHAI CITY TO: 201818 D3, NO.33, FUHUA ROAD, JIADING DISTRICT, SHANGHAI CITY |
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Effective date of registration: 20100416 Address after: 201818 Shanghai city Jiading District Fuhua Road No. 33 D3 Patentee after: Shanghai Nextrend Technology Co.,Ltd. Address before: 201800 finance section, College of science and technology management cadre, 37 Jiading District City Road, Shanghai Patentee before: Liu Kang |
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| CF01 | Termination of patent right due to non-payment of annual fee |