CN1680074A - Profile machining method of nonspherical lens and lens mould - Google Patents
Profile machining method of nonspherical lens and lens mould Download PDFInfo
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- CN1680074A CN1680074A CN 200410023081 CN200410023081A CN1680074A CN 1680074 A CN1680074 A CN 1680074A CN 200410023081 CN200410023081 CN 200410023081 CN 200410023081 A CN200410023081 A CN 200410023081A CN 1680074 A CN1680074 A CN 1680074A
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- lens
- grinding tool
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- die
- spherical lens
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- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
A contour machining method for the non-spherical lens and its die features that the workpiece and its grinding tool are always in linear contact and are rotating around respective axises which are in a same plane, and the symmetrical line of the prime lines on the surface of grinding tool coincides with the rotation axis of workpiece.
Description
Technical field:
The present invention relates to a kind of lens processing method, belong to machining process, the contour machining method of particularly a kind of non-spherical lens and lens die.
Background technology:
Non-spherical lens is a kind of geometric optics element, it has overcome the defective of spherical lens imaging generation distortion, purposes is very extensive, the traditional processing method of existing non-spherical lens is to process the aspheric surface metal pattern earlier, remove moulding high density ceramic mould with metal pattern, utilize the high density ceramic mould high temperature resistant again, have characteristics such as microcellular structure, at high temperature make the lens material softening transform, be processed into lens.This lens processing method is hot worked method, and its defective is cost height, complex process, repeatedly duplicates and hot-working causes precision low.Existing traditional mechanical lens cold process can only be processed spherical lens and lens die, because the finished surface of spherical lens is the identical sphere of radius with the grinding tool grinding skin, both can both keep overlapping on any position, and lens curved surface is that face contacts with the grinding tool grinding skin.Therefore, any one all can be ground on the lens sphere of being processed, and radius difference everywhere on the aspheric surface, aspheric surface grinding tool surface and surface of the work have only when overlapping fully with the center line of this two surface curve, these two surfaces could coincide, therefore grinding tool and workpiece can not have any relative motion of face under contacting, so the cold working method of sphere can not be used for non-spherical lens and lens die is processed.
Summary of the invention:
The object of the present invention is to provide the processing method of a kind of non-spherical lens and lens die, solve the processing problems of non-spherical lens and lens die.Overcome existing spherical lens processing method, the defective that can not process non-spherical lens.
Technical solution of the present invention is the contour machining method of a kind of non-spherical lens and lens die, the processing of lens and lens die is all carried out profile copy grinding processing by grinding tool, it is characterized in that: non-spherical lens and lens die add man-hour, and grinding tool is that line contacts with workpiece all the time.
Description of drawings:
Fig. 1 is non-spherical convex lens or lens die schematic diagram;
Fig. 2 is non-spherical convex lens grinding tool schematic diagram;
Fig. 3 is aspheric surface concavees lens or lens die schematic diagram;
Fig. 4 is an aspheric surface concavees lens grinding tool schematic diagram;
Fig. 5 is a non-spherical lens machinery contour machining method schematic diagram;
The specific embodiment:
The present invention further specifies as follows in conjunction with specific embodiments referring to accompanying drawing:
The contour machining method of a kind of non-spherical lens and lens die, it is a kind of method of producing non-spherical lens and lens die with filing cold working, this method is to process the aspheric surface grinding tool that plain line is a particular curve earlier, particular curve can be a circular arc, parabola, hyperbola, smooth curves such as oval segmental arc, adhere to diamond in its surface then or other abrasive material is made grinding tool, on special purpose machine tool, process non-spherical lens again with grinding tool, referring to accompanying drawing 5, this machine tool chief axis [5] drives grinding tool [6] rotation, grinding tool rotation B, [7] be thimble, workpiece is loaded on the cross slide [9] of lathe, drive workpiece [8] around self axis rotation by the main shaft on the planker [10] through buncher [12], cross slide [9] again can be by handle [13] workpiece manipulation [8] feeding, and by pressure-regulating device [11] control stock removal.
Non-spherical lens can be convex lens or lens die, referring to accompanying drawing 1, also can be concavees lens or lens die, and referring to accompanying drawing 3, aspheric surface convex lens grinding tool is referring to accompanying drawing 2, and corresponding aspheric surface concavees lens grinding tool is referring to accompanying drawing 4.
The processing of non-spherical lens and lens die must guarantee:
(1) workpiece [8] and grinding tool [6] are separately around self axis rotation.
(2) workpiece rotation A and grinding tool rotation B are in same plane.
(3) rotation of workpiece (figure cathetus A) coincides with the line of symmetry (figure cathetus A ') of the surperficial plain line of the grinding district scope of grinding tool.
Advantage of the present invention has provided the processing method of a kind of non-spherical lens and lens die, has filled up the technological gap that prior art spherical lens processing method can not be processed non-spherical lens.
Claims (2)
1, the contour machining method of a kind of non-spherical lens and lens die, the processing of lens and lens die all carry out profile copy grinding processing by grinding tool, and it is characterized in that: non-spherical lens and lens die add man-hour, and grinding tool is that line contacts with workpiece all the time.
2, the contour machining method of a kind of non-spherical lens and lens die is characterized in that machining element is:
(1) workpiece and grinding tool are separately around self axis rotation;
(2) workpiece rotation and grinding tool rotation are in same plane;
(3) line of symmetry of the surperficial plain line of grinding tool Surface Machining district scope overlaps with the workpiece rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410023081 CN1680074A (en) | 2004-04-06 | 2004-04-06 | Profile machining method of nonspherical lens and lens mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410023081 CN1680074A (en) | 2004-04-06 | 2004-04-06 | Profile machining method of nonspherical lens and lens mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1680074A true CN1680074A (en) | 2005-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410023081 Pending CN1680074A (en) | 2004-04-06 | 2004-04-06 | Profile machining method of nonspherical lens and lens mould |
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| CN (1) | CN1680074A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101687302A (en) * | 2007-07-09 | 2010-03-31 | 卡尔蔡司Smt股份公司 | Method of measuring a deviation of an optical surface from a target shape |
| CN104942676A (en) * | 2015-07-13 | 2015-09-30 | 侯灿伟 | Linked grinding device capable of machining multiple round stone balls simultaneously |
| CN104942675A (en) * | 2015-07-13 | 2015-09-30 | 侯金杯 | Linked polishing device capable of machining multiple round stone balls simultaneously |
| CN105538086A (en) * | 2015-12-16 | 2016-05-04 | 中国科学院长春光学精密机械与物理研究所 | Machining method for non-rotational-symmetry aspheric surfaces |
| CN109514384A (en) * | 2018-11-07 | 2019-03-26 | 西安工业大学 | The polishing method and device of aspherical optical element |
-
2004
- 2004-04-06 CN CN 200410023081 patent/CN1680074A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101687302A (en) * | 2007-07-09 | 2010-03-31 | 卡尔蔡司Smt股份公司 | Method of measuring a deviation of an optical surface from a target shape |
| CN101687302B (en) * | 2007-07-09 | 2013-06-05 | 卡尔蔡司Smt有限责任公司 | Aspherical, and amplitude configuration and projection lens |
| CN104942676A (en) * | 2015-07-13 | 2015-09-30 | 侯灿伟 | Linked grinding device capable of machining multiple round stone balls simultaneously |
| CN104942675A (en) * | 2015-07-13 | 2015-09-30 | 侯金杯 | Linked polishing device capable of machining multiple round stone balls simultaneously |
| CN105538086A (en) * | 2015-12-16 | 2016-05-04 | 中国科学院长春光学精密机械与物理研究所 | Machining method for non-rotational-symmetry aspheric surfaces |
| CN109514384A (en) * | 2018-11-07 | 2019-03-26 | 西安工业大学 | The polishing method and device of aspherical optical element |
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