CN102729117B - Numerical control aspherical lens polisher - Google Patents
Numerical control aspherical lens polisher Download PDFInfo
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- CN102729117B CN102729117B CN201210203265.2A CN201210203265A CN102729117B CN 102729117 B CN102729117 B CN 102729117B CN 201210203265 A CN201210203265 A CN 201210203265A CN 102729117 B CN102729117 B CN 102729117B
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- mirror base
- motor
- bistrique
- polar angle
- grinding head
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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 optical manufacturing field, being specifically related to a kind of invention of the numerical control grinding illuminating apparatus for grinding aspherics minute surface.
Background technology
mill illuminating apparatus is a kind of machine grinding optical mirror plane, for spherical mirror, can directly grind easily, for aspheric mirror, the general grinding technology that relies on is controlled, and needs constantly to detect and reconditioning in process, complex process is high to the technical requirement of workman, thus with high costs.For resin lens, general employing first grinds the eyeglass of glass as mould, produces eyeglass by injection moulding.Because the spherical aberration of aspheric mirror is much less than spherical mirror, therefore its image quality is much better than spherical mirror, but the difficulty of producing causes its cost higher.
Numerical control grinding illuminating apparatus of the prior art, the overwhelming majority is sphere mill illuminating apparatus.Such as, China's No. 200820029067.8 utility model patents: a kind of high precision sphere numerical control honing machine for processing spherical workpiece, is made up of main shaft, grinding tool, controllable friction moment ball-type hinge, press rods, the servo-actuated elastic stressing mechanism of axis of swing and servo-actuated force measuring system and servo-actuated Photoelectronic length measuring system etc.After main axis, controllable friction moment ball-type knuckle-joint band moves grinding tool and swings, and grinding tool is around own axis simultaneously.This kind of sphere mill illuminating apparatus cannot complete the task of automatic milling manufacture-illegal spherical mirror.Its principle of work is sphere generating principle, and when main shaft rotates with angular velocity omega, honing head tool swings honing head simultaneously with angular velocity β and rotates with angular velocity omega 1 around own axes.ω, β, ω 1 three parameters are interrelated, affect machining precision, controlled, control to coordinate the optimum matching of ω, β, ω 1 three parameters, ensure that honing head uniform wear and the even honing of spherical workpiece by computing machine.
Only a few can grind the numerical control grinding illuminating apparatus of aspheric mirror, and price is all extremely high, is not suitable for applying at the product for civilian use.
Summary of the invention
For 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 grind illuminating apparatus by conputer controlled and automatically grind, and grind the aspherical mirror of needs fast, not high to the skill requirement of operating personnel, significant cost reduces, and grinds efficiency and improves hundreds of times.
The technical scheme completing foregoing invention task is, a kind of numerical control aspheric mill illuminating apparatus, and head holder is provided with bistrique turning axle, and bistrique is arranged on this bistrique turning axle; Bistrique electric rotating machine drives described bistrique to rotate around bistrique turning axle; It is characterized in that, described head holder is arranged on the translation stage of footpath, pole, head holder translation motor drive described in head holder on the translation stage of footpath, pole along the direction translation of footpath, pole; Described footpath, pole translation stage is arranged on mill illuminating apparatus base by polar angle turning axle, and polar angle spindle motor drives polar angle axle to rotate; Meanwhile, mill illuminating apparatus base is provided with mirror base seat, drives the translation of described mirror base seat by mirror base seat translation motor; Mirror base turning axle is arranged on this mirror base seat, and mirror base is fixed on this mirror base turning axle, drives this mirror base turning axle and mirror base to rotate by mirror base electric rotating machine; Described bistrique electric rotating machine, head holder translation motor, polar angle spindle motor, mirror base seat translation motor and mirror base electric rotating machine, the computer by control system carries 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; Because speed stability is less demanding, adopt speed control of open loop, with low cost;
2, polar angle spindle motor and head holder translation motor all adopt Step motor; Use the method to motor stepping pulse count signal, obtain the angle that motor turns over, realize the metering of polar angle axle, head holder translational movement, both achieved closed loop location and controlled, there is again very high cost performance;
3, mirror base seat translation stage and footpath, pole translation stage all adopt screw rod transmission, and smoothly, stable, resolving accuracy is high;
4, polar angle axle, the rotation of mirror base rotate with bistrique and adopt Worm Wheel System, and ratio of gear is high, and energy self-locking, resolving accuracy is high.
Structure of the present invention and job step be as shown in Figure 1:
1, mirror base 7 is arranged on mirror base seat 8, grinds in process, and mirror base 7 is driven by mirror base electric rotating machine 9, and rotate with fixed rotating speed, rotating speed before grinding, can be set by computer software;
2, mirror base seat 8 is dragged by mirror base seat translation motor 12, can move linearly, can be controlled by computer and manual control box along mirror base seat translation stage 11;
3, bistrique 6 is arranged on head holder 4, and bistrique 6 is driven by bistrique electric rotating machine 3, and grinding with fixed rotating speed rotation in process, rotating speed by conputer controlled, can set before grinding;
4, head holder 4 is arranged on footpath, pole translation stage 2, and footpath, pole translation stage 2 is dragged by head holder translation motor 1, is controlled, do rectilinear motion by computer or manual control box;
5, footpath, pole translation stage 2 can rotate around polar angle axle 14, and polar angle axle 14 is dragged by polar angle spindle motor 15, and computer and manual control box control;
When 6, automatically grinding, the mill illuminating apparatus software on computer is by the face shape of input, and control polar angle axle, footpath, pole translation stage motor move successively, make the curve that bistrique is walked out, meet face shape function; The rotation of mill base and bistrique, makes mirror base face be ground into rotary aspherical.
Its ultimate principle utilizes the multiple rotation axis motion of conputer controlled, makes bistrique by the orbiting motion of design, grind out the aspherical shape of needs.During use in computer software the face shape function of the minute surface of In-put design, or the measurement data of input sample, can grind illuminating apparatus by conputer controlled and automatically grind, grind the minute surface of needs fast, not high to the skill requirement of operating personnel, significant cost reduces, and grinds efficiency and improves hundreds of times.The consistance of product is high in addition, and the surface figure accuracy of finished product controls easily by setting parameter.
Advantage of the present invention is:
Computer program controls, and grinds rotary aspherical mirror fast, grinds efficiency and greatly improve;
For the minute surface of known shape function, only need input face shape function in software, can automatically grind;
For the minute surface of not knowing face shape function, only need input face shape measurement data in software, can automatically grind;
Both can grind convex mirror, also can grind concave mirror, adaptability is fabulous;
Grind cost to decline to a great extent, simultaneously not high to the skill requirement of operating personnel.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Embodiment 1: numerical control aspheric mill illuminating apparatus is with reference to Fig. 1: mirror base 7 is arranged on mirror base seat 8, grinds in process, and mirror base 7 is driven by mirror base electric rotating machine 9, and rotate with fixed rotating speed, rotating speed before grinding, can be set by computer software; Mirror base seat 8 is dragged by mirror base seat translation motor 12, can move linearly, can be controlled by computer and manual control box along mirror base seat translation stage 11; Bistrique 6 is arranged on head holder 4, and bistrique 6 is driven by bistrique electric rotating machine 3, and grinding with fixed rotating speed rotation in process, rotating speed by conputer controlled, can set before grinding; Head holder 4 is arranged on footpath, pole translation stage 2, and footpath, pole translation stage 2 is dragged by head holder translation motor 1, is controlled, do rectilinear motion by computer or manual control box; Footpath, pole translation stage 2 can rotate around polar angle axle 14, and polar angle axle 14 is dragged by polar angle spindle motor 15, and computer and manual control box control.
The numerical control aspheric that the present embodiment is developed in Nanjing ZhongKe astronomy Instruments Co., Ltd grinds on illuminating apparatus model machine, achieves the numerical control rotating convex aspheric surface and grinds.Specific implementation step uses spill bistrique, grinds from edge to centre.
The present embodiment also achieves the recessed aspheric numerical control of rotation and grinds.
Claims (1)
1. a numerical control aspheric mill illuminating apparatus, head holder is provided with bistrique turning axle, and bistrique is arranged on this bistrique turning axle; Bistrique electric rotating machine drives described bistrique to rotate around bistrique turning axle; It is characterized in that, described head holder is arranged on the translation stage of footpath, pole, head holder translation motor drive described in head holder on the translation stage of footpath, pole along the direction translation of footpath, pole; Described footpath, pole translation stage is arranged on mill illuminating apparatus base by polar angle turning axle, and polar angle spindle motor drives polar angle axle to rotate; Meanwhile, mill illuminating apparatus base is provided with mirror base seat, drives the translation of described mirror base seat by mirror base seat translation motor; Mirror base turning axle is arranged on this mirror base seat, and mirror base is fixed on this mirror base turning axle, drives this mirror base turning axle and mirror base to rotate by mirror base electric rotating machine; Described bistrique electric rotating machine, head holder translation motor, polar angle spindle motor, mirror base seat translation motor and mirror base electric rotating machine, the computer by control system carries out Digital Control;
Described mirror base electric rotating machine and bistrique electric rotating machine all adopt direct current generator, and adopt speed control of open loop;
Described polar angle spindle motor and head holder translation motor all adopt Step motor; And adopt the method to motor stepping pulse count signal, obtain the angle that motor turns over, realize the metering of polar angle axle, head holder translational movement, realize closed loop location;
Described mirror base seat translation stage and footpath, pole translation stage all adopt screw rod transmission;
The rotation of described polar angle axle, mirror base rotates with bistrique and adopts Worm Wheel System.
Priority Applications (1)
| 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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| 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 CN102729117A (en) | 2012-10-17 |
| CN102729117B true CN102729117B (en) | 2015-03-25 |
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| CN201210203265.2A Active CN102729117B (en) | 2012-06-19 | 2012-06-19 | Numerical control aspherical lens polisher |
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Families Citing this family (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 |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09262750A (en) * | 1996-03-27 | 1997-10-07 | Nikon Corp | Method and device for grinding aspheric surface |
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2012
- 2012-06-19 CN CN201210203265.2A patent/CN102729117B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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)
| Title |
|---|
| 非球面零件电流变抛光实验台开发;李峰;《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》;中国学术期刊（光盘版）电子杂志社;20070815(第2期);第22页最后一段到第24页最后一段 * |
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| CN102729117A (en) | 2012-10-17 |
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| CB03 | Change of inventor or designer information |
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. |
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