CN102729117A - Numerical control aspherical lens polisher - Google Patents
Numerical control aspherical lens polisher Download PDFInfo
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- CN102729117A CN102729117A CN2012102032652A CN201210203265A CN102729117A CN 102729117 A CN102729117 A CN 102729117A CN 2012102032652 A CN2012102032652 A CN 2012102032652A CN 201210203265 A CN201210203265 A CN 201210203265A CN 102729117 A CN102729117 A CN 102729117A
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- bistrique
- seat
- mirror base
- motor
- rotating shaft
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- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention discloses a numerical control aspherical lens polisher. A grinding head rotating shaft is arranged on a grinding head seat; a grinding head is arranged on the grinding head rotating shaft; and a grinding head rotating motor drives the grinding head to rotate around the grinding head rotating shaft. The numerical control aspherical lens polisher is characterized in that the grinding head seat is arranged on a polar-radius translational platform; a grinding head translational motor drives the grinding head seat to translate along the polar-radius direction; the polar-radius translational platform is arranged on a lens polisher base through a polar angle rotating shaft; a polar angle shaft motor drives the polar angle shaft to rotate; meanwhile, a lens blank seat is arranged on the lens polisher base and is driven by a lens blank seat translational motor to translate; a lens blank rotating shaft is arranged on the lens blank seat; a lens blank is fixedly arranged on the lens blank seat rotating shaft; the lens blank rotating shaft and the lens blank are driven by a lens blank rotating motor to rotate; and the grinding head rotating motor, the grinding head seat translational motor, the polar angle shaft motor, the lens blank seat translational motor and the lens blank rotating motor are respectively and digitally controlled by a computer of the control system. According to the numerical control aspherical lens polisher disclosed by the invention, the lens polisher can be controlled to automatically polishing by the computer to quickly form the required aspherical surface, and thus the cost is greatly reduced and the efficiency is improved by hundreds of times.
Description
Technical field
The invention belongs to the optics manufacture field, be specifically related to a kind of invention that is used to grind the numerical control mill illuminating apparatus of aspherics minute surface.
Background technology
The mill illuminating apparatus is a kind of machine that grinds optical mirror plane, for spherical mirror, can directly grind easily; For aspherical mirror, generally rely on grinding technology to control, need in the process constantly to detect and reconditioning; Complex process, high to workman's specification requirement, thereby with high costs.As far as resin lens, the eyeglass that general employing grinds glass is earlier produced eyeglass as mould through injection moulding.Because the spherical aberration of aspherical mirror is little more a lot of than spherical mirror, so its image quality is much better than spherical mirror, but the difficulty of producing causes its cost higher.
Numerical control mill illuminating apparatus of the prior art, the overwhelming majority is sphere mill illuminating apparatus.For example; No. 200820029067.8 utility model patents of China: a kind of high accuracy sphere numerical control honing machine that is used to process the sphere workpiece, form by main shaft, grinding tool, controlled moment of friction ball-type hinge, press rods, swinging axle servo-actuated elastic stressing mechanism and servo-actuated force measuring system and servo-actuated photoelectricity length measurement system etc.After main shaft rotated, controlled moment of friction ball-type hinge drove the grinding tool swing, and grinding tool is around self axis rotation simultaneously.This type sphere mill illuminating apparatus can't be accomplished the task of grinding aspherical mirror automatically.Its operation principle is the sphere generating principle, when main shaft rotates with angular velocity omega, the honing head tool with angular speed β swing simultaneously honing head rotate with angular velocity omega 1 around self axis.ω, β, 1 three parameters of ω are interrelated, influence machining accuracy, coordinate the optimum Match of ω, β, 1 three parameters of ω through computer control, control, have guaranteed honing head uniform wear and the even honing of sphere workpiece.
Only a few can grind the numerical control mill illuminating apparatus of aspherical mirror, and price is all extremely high, is not suitable for using at the product for civilian use.
Summary of the invention
To the above-mentioned deficiency of prior art, the present invention proposes a kind of novel numerical control aspheric mill illuminating apparatus.Numerical control aspheric mill illuminating apparatus of the present invention can be ground by computer control mill illuminating apparatus automatically, grinds the aspherical mirror that needs fast, and less demanding to operating personnel's experience, cost greatly reduces, and grinds efficient and improves hundreds of times.
The technical scheme of accomplishing the foregoing invention task is, a kind of numerical control aspheric mill illuminating apparatus is provided with the bistrique rotating shaft on the bistrique seat, and bistrique is installed on this bistrique rotating shaft; The bistrique electric rotating machine drives said bistrique and rotates around the bistrique rotating shaft; It is characterized in that described bistrique seat is installed on the translation stage of utmost point footpath, bistrique seat translation motor drives described bistrique seat in the utmost point footpath direction translation of translation stage upper edge, utmost point footpath; Described utmost point footpath translation stage is installed on the mill illuminating apparatus base through the polar angle rotating shaft, and the polar angle spindle motor drives the rotation of polar angle axle; Simultaneously, mill illuminating apparatus base is provided with mirror base seat, drives the translation of said mirror base seat by mirror base seat translation motor; Mirror base rotating shaft is installed on this mirror base seat, and the mirror base is fixed on this mirror base rotating shaft, drives this mirror base rotating shaft and the rotation of mirror base by mirror base electric rotating machine; Described bistrique electric rotating machine, bistrique seat translation motor, polar angle spindle motor, mirror base seat translation motor and mirror base electric rotating machine, by control system computer carry out Digital Control.
The present invention has following prioritization scheme:
1, mirror base electric rotating machine and bistrique electric rotating machine all adopt direct current generator; Less demanding because of speed stability, adopt the open loop speed controlling, with low cost;
2, polar angle spindle motor and bistrique seat translation motor all adopt dynamo-electric machine of step; Use obtains the angle that motor turns over to the method for motor stepping pulse count signal, realizes the metering of polar angle axle, bistrique seat translational movement, has both realized the closed loop Position Control, has very high cost performance again;
3, the mirror base seat translation stage and utmost point footpath translation stage all adopts the screw mandrel transmission, and is level and smooth, stable, resolving accuracy is high;
4, polar angle axle, mirror base rotate with the bistrique rotation and adopt the worm and gear transmission, and gearratio is high, the ability self-locking, and resolving accuracy is high.
Structure of the present invention and job step are as shown in Figure 1:
1, mirror base 7 is installed on the mirror base seat 8, grinds in the process, and mirror base 7 is driven by mirror base electric rotating machine 9, and with the fixed rotating speed rotation, rotating speed can be set by computer software before grinding;
2, mirror base seat 8 is dragged by mirror base seat translation motor 12, can move along mirror base seat translation stage 11 straight lines, can be by computer and manual control box control;
3, bistrique 6 is installed on the bistrique seat 4, and bistrique 6 is driven by bistrique electric rotating machine 3, in the process of grinding, rotates with fixed rotating speed, and rotating speed can be controlled by computer, is grinding preceding setting;
4, bistrique seat 4 is installed on the translation stage 2 of utmost point footpath, and utmost point footpath translation stage 2 is dragged by bistrique seat translation motor 1, by computer or manual control box control, does rectilinear motion;
5, utmost point footpath translation stage 2 can be around 14 rotations of polar angle axle, and polar angle axle 14 is dragged by polar angle spindle motor 15, computer and manual control box control;
When 6, grinding automatically, the mill illuminating apparatus software on the computer is by the face shape of input, and control polar angle axle, utmost point footpath translation stage motor move successively, and the curve that bistrique is walked out meets the face shape function; The rotation of mill base and bistrique makes mirror base face worn into the rotation aspheric surface.
Its basic principle is to utilize computer to control a plurality of turning cylinder motions, makes the orbiting motion of bistrique by design, grinds out the aspherical shape that needs.The face shape function of the minute surface that input designs in computer software during use, or the measurement data of input sample can be ground by computer control mill illuminating apparatus automatically; Grind the minute surface that needs fast; Experience to operating personnel is less demanding, and cost greatly reduces, and grinds efficient and improves hundreds of times.Consistency of product is high in addition, and the surface figure accuracy of finished product can be set easily and control through parameter.
Advantage of the present invention is:
Computer program control grinds the rotation aspherical mirror fast, grinds efficient and greatly improves;
For the minute surface of known shape function, only need input face shape function in software, can grind automatically;
For the minute surface of not knowing the face shape function, only need input face shape measurement data in software, can grind automatically;
Both can grind convex mirror, and also can grind concave mirror, adaptability is fabulous;
Grind cost and decline to a great extent, less demanding to operating personnel's experience simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Embodiment 1: numerical control aspheric mill illuminating apparatus is with reference to Fig. 1: mirror base 7 is installed on the mirror base seat 8, grinds in the process, and mirror base 7 is driven by mirror base electric rotating machine 9, and with the fixed rotating speed rotation, rotating speed can be set by computer software before grinding; Mirror base seat 8 is dragged by mirror base seat translation motor 12, can move along mirror base seat translation stage 11 straight lines, can be by computer and manual control box control; Bistrique 6 is installed on the bistrique seat 4, and bistrique 6 is driven by bistrique electric rotating machine 3, in the process of grinding, rotates with fixed rotating speed, and rotating speed can be controlled by computer, is grinding preceding setting; Bistrique seat 4 is installed on the translation stage 2 of utmost point footpath, and utmost point footpath translation stage 2 is dragged by bistrique seat translation motor 1, by computer or manual control box control, does rectilinear motion; Utmost point footpath translation stage 2 can be around 14 rotations of polar angle axle, and polar angle axle 14 is dragged by polar angle spindle motor 15, computer and manual control box control.
Present embodiment has realized that the numerical control of rotation convex aspheric surface grinds on the numerical control aspheric mill illuminating apparatus model machine of Nanjing ZhongKe astronomy Instruments Co., Ltd's development.Concrete performing step is to use the spill bistrique, grinds to the centre from the edge.
Present embodiment has realized that also the recessed aspheric numerical control of rotation grinds.
Claims (5)
1. a numerical control aspheric mill illuminating apparatus is provided with the bistrique rotating shaft on the bistrique seat, and bistrique is installed on this bistrique rotating shaft; The bistrique electric rotating machine drives said bistrique and rotates around the bistrique rotating shaft; It is characterized in that described bistrique seat is installed on the translation stage of utmost point footpath, bistrique seat translation motor drives described bistrique seat in the utmost point footpath direction translation of translation stage upper edge, utmost point footpath; Described utmost point footpath translation stage is installed on the mill illuminating apparatus base through the polar angle rotating shaft, and the polar angle spindle motor drives the rotation of polar angle axle; Simultaneously, mill illuminating apparatus base is provided with mirror base seat, drives the translation of said mirror base seat by mirror base seat translation motor; Mirror base rotating shaft is installed on this mirror base seat, and the mirror base is fixed on this mirror base rotating shaft, drives this mirror base rotating shaft and the rotation of mirror base by mirror base electric rotating machine; Described bistrique electric rotating machine, bistrique seat translation motor, polar angle spindle motor, mirror base seat translation motor and mirror base electric rotating machine, by control system computer carry out Digital Control.
2. numerical control aspheric mill illuminating apparatus according to claim 1 is characterized in that described mirror base electric rotating machine and bistrique electric rotating machine all adopt direct current generator, and adopts the open loop speed controlling.
3. numerical control aspheric mill illuminating apparatus according to claim 1 is characterized in that described polar angle spindle motor and bistrique seat translation motor all adopt dynamo-electric machine of step; And adopt method to motor stepping pulse count signal, and obtain the angle that motor turns over, realize the metering of polar angle axle, bistrique seat translational movement, realize the closed loop position.
4. numerical control aspheric mill illuminating apparatus according to claim 1 is characterized in that, described mirror base seat translation stage and utmost point footpath translation stage all adopt the screw mandrel transmission.
5. according to the described numerical control aspheric mill of one of claim 1-4 illuminating apparatus, it is characterized in that described polar angle axle, the rotation of mirror base are adopted the worm and gear transmission with the bistrique rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210203265.2A CN102729117B (en) | 2012-06-19 | 2012-06-19 | Numerical control aspherical lens polisher |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210203265.2A CN102729117B (en) | 2012-06-19 | 2012-06-19 | Numerical control aspherical lens polisher |
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| CN102729117A true CN102729117A (en) | 2012-10-17 |
| CN102729117B CN102729117B (en) | 2015-03-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495916A (en) * | 2013-07-05 | 2014-01-08 | 中科院南京天文仪器有限公司 | Numerical control mirror grinding machine for grinding non-spherical optical mirror faces |
| CN104898571A (en) * | 2015-05-06 | 2015-09-09 | 大连民族学院 | Archimedes spiral interpolation mechanism |
| CN111318936A (en) * | 2018-11-28 | 2020-06-23 | 魏县锦辉紧固件有限公司 | A multi-angle grinding device for car fastener |
Citations (5)
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| JPH09262750A (en) * | 1996-03-27 | 1997-10-07 | Nikon Corp | Method and device for grinding aspheric surface |
| CA2220371A1 (en) * | 1997-07-09 | 1999-01-09 | Micro Optics Design Corporation | Apparatus and method for generating ultimate surfaces on ophthalmic lenses |
| CN1354070A (en) * | 2000-11-17 | 2002-06-19 | 长春光学精密机械学院 | Aspherical trace forming processing method and its equipment |
| CN101376229A (en) * | 2007-08-30 | 2009-03-04 | 长春理工大学 | Processing method and device for forming aspheric surface part by numerical control tangent line turning method |
| CN102059620A (en) * | 2010-07-19 | 2011-05-18 | 长春理工大学 | Numerical control aspherical processing method adopting tangent method and machine tool |
-
2012
- 2012-06-19 CN CN201210203265.2A patent/CN102729117B/en active Active
Patent Citations (5)
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|---|---|---|---|---|
| JPH09262750A (en) * | 1996-03-27 | 1997-10-07 | Nikon Corp | Method and device for grinding aspheric surface |
| CA2220371A1 (en) * | 1997-07-09 | 1999-01-09 | Micro Optics Design Corporation | Apparatus and method for generating ultimate surfaces on ophthalmic lenses |
| CN1354070A (en) * | 2000-11-17 | 2002-06-19 | 长春光学精密机械学院 | Aspherical trace forming processing method and its equipment |
| CN101376229A (en) * | 2007-08-30 | 2009-03-04 | 长春理工大学 | Processing method and device for forming aspheric surface part by numerical control tangent line turning method |
| CN102059620A (en) * | 2010-07-19 | 2011-05-18 | 长春理工大学 | Numerical control aspherical processing method adopting tangent method and machine tool |
Non-Patent Citations (1)
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| 李峰: "非球面零件电流变抛光实验台开发", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》, no. 2, 15 August 2007 (2007-08-15), pages 022 - 327 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495916A (en) * | 2013-07-05 | 2014-01-08 | 中科院南京天文仪器有限公司 | Numerical control mirror grinding machine for grinding non-spherical optical mirror faces |
| CN104898571A (en) * | 2015-05-06 | 2015-09-09 | 大连民族学院 | Archimedes spiral interpolation mechanism |
| CN104898571B (en) * | 2015-05-06 | 2017-12-15 | 大连民族学院 | Spiral of Archimedes interpolation mechanism |
| CN111318936A (en) * | 2018-11-28 | 2020-06-23 | 魏县锦辉紧固件有限公司 | A multi-angle grinding device for car fastener |
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| CN102729117B (en) | 2015-03-25 |
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Inventor after: Zhu Qingsheng Inventor after: Cheng Chunlian Inventor after: Zhou Xiaojun Inventor after: Zhou Xiaomin Inventor after: Pan Junhe Inventor before: Cheng Chunlian Inventor before: Zhou Xiaojun Inventor before: Zhou Xiaomin Inventor before: Pan Junhe |
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Free format text: CORRECT: INVENTOR; FROM: CHENG CHUNLIAN ZHOU XIAOJUN ZHOU XIAOMIN PAN JUNHE TO: ZHU QINGSHENG CHENG CHUNLIAN ZHOU XIAOJUN ZHOU XIAOMIN PAN JUNHE |
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Address after: 210042 Huayuan Road, Nanjing, Jiangsu Province, No. 6-10 Patentee after: Chinese Academy of Sciences, Nanjing Astronomical Instrument Co., Ltd. Address before: 210042 Huayuan Road, Nanjing, Jiangsu Province, No. 6-10 Patentee before: CAS Nanjing Astronomical Instruments Co., Ltd. |