CN103111630A - Machining method of curved surface prism Fery prism - Google Patents
Machining method of curved surface prism Fery prism Download PDFInfo
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- CN103111630A CN103111630A CN2013100334991A CN201310033499A CN103111630A CN 103111630 A CN103111630 A CN 103111630A CN 2013100334991 A CN2013100334991 A CN 2013100334991A CN 201310033499 A CN201310033499 A CN 201310033499A CN 103111630 A CN103111630 A CN 103111630A
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Abstract
The invention discloses a machining method of a curved surface prism Fery prism. The machining method of the curved surface prism Fery prism is characterized by comprising the following steps: machining an initial structure of the curved surface prism Fery prism; fixing the initial structure of the curved surface prism Fery prism on an optical machining center rotary platform, enabling an axial line of a cylinder to be coaxial with the optical machining center rotary platform, and machining a first curved surface on an end face of the cylinder, wherein an optical axis of the machined first curved surface of the curved surface prism Fery prism coincides with the axial line of the cylinder; designing and manufacturing a fixture, wherein the appearance of the fixture is cylindrical, the fixture is provided with a clamping groove which is cylindrical, an axial line of the clamping groove and an axial line of the fixture are arranged in an inclined mode, and the axial line of the fixture is enabled to coincide with an optical axis of a to-be-machined second curved surface of the curved surface prism Fery prism; clamping the initial structure of the curved surface prism fery prism on the fixture, wherein the initial structure of the curved surface prism Fery prism is provided with the machined first curved surface, enabling an axial line of a cylinder of the fixture to be coaxial with the optical machining center rotary platform, and machining the second curved surface on the end face of the cylinder of the initial structure of the curved surface prism Fery prism. The machining method of the curved surface prism Fery prism has the advantages of being high in machining precision, simple in structure, low in cost, high in efficiency, and prone to batch machining.
Description
Technical field
The invention belongs to optics manufacturing and Ultraprecision Machining field, relate to a kind of processing method of curved surface prism, be specifically related to a kind of processing method of fery's prism.
Background technology
Along with the development of optical design theory and optical processing technology, free curved surface prism relies on its remarkable optical property, small volume structure is compact and alleviate and the many merits such as require to be widely used a plurality of fields such as helmet display, entertainment video glasses, analog simulation training, operation to assembly precision.Therefore, the Study on manufacturing technology of curved surface prism is significant for national defence weapon equipment, medicine equipment etc.
The processing of optical surface prism at present mainly relies on the diamond turning technology to realize, its main method has two kinds: a kind of is directly to carry out diamond turning method to realize prism processing; Another kind is to adopt the diamond turning method to carry out the processing of free form surface core rod, then realizes the manufacturing of whole prism by injection molding technology.Directly carry out diamond turning method to device location, being installed has proposed high requirement, so repeatedly being installed can be introduced the more serious error that is installed, thereby causes the relative position error on free curved surface prism surface; And also there is same problem in the injection molding method, and in the injection molding process, there is error in the position adjustment between core rod, equally also can cause processing the deviation of the surperficial relative position of rear free form surface.And diamond turning relies on the multiple-freedom linking machine tool, so cost is higher.
For example, Chinese invention patent application CN 102139376A discloses a kind of method for processing free-form surface prism, need first side with each prism to be initialized as the plane and carry out the position adjustment to guarantee each side according to datum plane, angle between curved surface need to adopt the milling moulding that once is installed of accurate gang tool or machining center, and the angle between each curved surface optical axis relies on the rotating shaft running accuracy of machining tool to guarantee.Such processing mode seriously relies on accurate gang tool, it is larger that angle between each optical axis of free curved surface prism is affected by the rotary axis of machine tool corner accuracy, and the optical axis mismachining tolerance of each curved surface prism of free curved surface prism of a plurality of same structures of same lots processed is subjected to the machine tool system error effect to be difficult to more greatly guarantee each curved surface prism workpiece optical axis angle error consistency.
In order to make spectrograph obtain the spectrum of " pure ", propose in 1910 annual fees to replace the plane prism with curved surface prism, result shows that this improvement has advantages of that a lot of planes prism is incomparable.The characteristics such as fery's prism is little with its absorption loss water, and astigmatism is larger are widely used in the light spectrum image-forming optical system.The relative complex free curved surface prism, two curved surfaces of fery's prism are usually designed to sphere or the aspheric surface that has rotational symmetry structure about optical axis, if high with existing method for processing free-form surface prism processing fery's prism cost, and be difficult to guarantee the plain shaft precision of two curved surfaces, therefore be necessary to propose the curved surface prism processing method that a kind of novel practical is easy to realize mass production
Summary of the invention
Goal of the invention of the present invention is to provide and a kind ofly can need not to adopt NC machining equipment can realize the processing method of high crudy and high efficiency curved surface prism fery's prism
To achieve the above object of the invention, the technical solution used in the present invention is:
A kind of processing method of curved surface prism fery's prism comprises the steps:
(1) initial configuration of processing curve prism fery's prism, described initial configuration are cylinder, and the equal diameters of described cylinder diameter and first curved surface of fery's prism and two end faces are all the planes vertical with cylinder axle center line;
(2) initial configuration with fery's prism is fixed on optics machining center turntable, adjusting the location of workpiece makes its cylinder axial line coaxial with turntable, process first curved surface on the cylinder end face, first curved surface optical axis of the fery's prism of processing overlaps with the cylinder axial line;
(3) according to the design of Structural Parameters of described fery's prism and make fixture, described fixture profile is cylinder and is provided with columniform holding tank, the axial line of holding tank and the axial line of fixture are obliquely installed, make with after the fery's prism initial configuration clamping after step (2) processing is in holding tank the optical axis coincidence of second curved surface that the axial line of fixture and fery's prism are to be processed;
(4) with the fery's prism initial configuration clamping after step (2) processing on fixture, first curved surface is placed downwards, fixture is fixed on optics machining center turntable, adjust chucking position and make its cylinder axial line coaxial with turntable, process second curved surface on the cylinder end face of fery's prism initial configuration.
In technique scheme, during first curved surface of processing fery's prism, the axial line of turntable overlaps with fery's prism initial configuration cylinder axial line, and during second curved surface of processing, the axial line of turntable overlaps with the cylinder fixture axial line of clamping fery's prism.
In technique scheme, the angle between the axial line of the cylindrical fixture in described step (3) and the axial line of the holding tank on fixture equals the angle of two curved surface optical axises of fery's prism.
Because technique scheme is used, the present invention compared with prior art has following advantages:
The present invention only need to go out fixture according to the design of Structural Parameters of fery's prism, can complete by framework on fine turning lathe the processing of fery's prism, and the plain shaft precision of two faces of fery's prism is easy to guarantee by the precision of fixture, therefore, this invention has the advantages that crudy is high, simple in structure, cost is low, efficient is high, has avoided adopting prior art processing optical axis included angle precision to control inaccurate shortcoming.
Description of drawings
Fig. 1 is the initial configuration schematic diagram of the curved surface prism fery's prism of processing in the embodiment of the present invention one;
Fig. 2 is first curved surface schematic diagram of processing on the cylinder initial configuration in the embodiment of the present invention one;
Fig. 3 is cylinder fixture schematic diagram designed according to the fery's prism structural parameters in the embodiment of the present invention one;
Fig. 4 is the clamping schematic diagram when processing second face of fery's prism in the embodiment of the present invention one;
Fig. 5 is the fery's prism schematic diagram that is processed in the embodiment of the present invention one.
Wherein: 1, the cylinder axle center line of fery's prism initial configuration; 2, first curved surface; 3, the axial line of fixture; 4, holding tank axial line; 5, fixture; 6, second curved surface of fery's prism.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
Embodiment one: a kind of processing method of curved surface prism fery's prism comprises the steps:
(1) according to the initial configuration that needs processing curve prism fery's prism, calculate initial configuration, shown in Figure 1, its initial configuration is processed into cylinder, the equal diameters of this cylinder diameter and first face of fery's prism, two end faces are all the planes vertical with cylinder axle center line;
(2) the fery's prism initial configuration is fixed on optics machining center turntable, shown in Figure 2, adjusting the location of workpiece makes the cylinder axle center line 1 of fery's prism initial configuration coaxial with turntable, process first curved surface 2 on the cylinder end face, first face optical axis of the fery's prism of processing overlaps with the cylinder axial line;
(3) according to the design of Structural Parameters of fery's prism and make fixture, shown in Figure 3, fixture 5 resemblances are cylinder and to the axial line 3 of fery's prism clamping rear jig and the optical axis coincidence of second face of fery's prism, on fixture 5, the column inclined hole consists of holding tank, the optical axis coincidence of holding tank axial line 4 and second curved surface 6 of fery's prism, on cylinder gripper 5 and fixture, the angle of holding tank axial line 4 equals the optical axis included angle of two faces on fery's prism; Designing dexterously fixture is the important technical that realizes accurately controlling the fery's prism optical axis included angle;
(4) shown in Figure 4, to process the fery's prism clamping of first face on fixture, and be fixed on optics machining center turntable, adjusting the location of workpiece makes its cylinder axial line coaxial with turntable, process second curved surface on the cylinder end face, can obtain fery's prism as shown in Figure 5.
The processing method of curved surface prism fery's prism of the present invention, only need to go out fixture according to the design of Structural Parameters of fery's prism, can complete by framework on fine turning lathe the processing of fery's prism, and the plain shaft precision of two faces of fery's prism is easy to guarantee by the precision of fixture, therefore, this invention has the advantages that crudy is high, simple in structure, cost is low, efficient is high, has avoided adopting prior art processing optical axis included angle precision to control inaccurate shortcoming.
Claims (2)
1. the processing method of a curved surface prism fery's prism, is characterized in that, comprises the steps:
(1) initial configuration of processing curve prism fery's prism, described initial configuration are cylinder, and the equal diameters of described cylinder diameter and first curved surface of fery's prism and two end faces are all the planes vertical with cylinder axle center line;
(2) initial configuration with fery's prism is fixed on optics machining center turntable, adjusting the location of workpiece makes its cylinder axial line coaxial with turntable, process first curved surface on the cylinder end face, first curved surface optical axis of the fery's prism of processing overlaps with the cylinder axial line;
(3) according to the design of Structural Parameters of described fery's prism and make fixture, described fixture profile is cylinder and is provided with columniform holding tank, the axial line of holding tank and the axial line of fixture are obliquely installed, make with after the fery's prism initial configuration clamping after step (2) processing is in holding tank the optical axis coincidence of second curved surface that the axial line of fixture and fery's prism are to be processed;
(4) with the fery's prism initial configuration clamping after step (2) processing on fixture, first curved surface is placed downwards, fixture is fixed on optics machining center turntable, adjust chucking position and make its cylinder axial line coaxial with turntable, process second curved surface on the cylinder end face of fery's prism initial configuration.
2. the processing method of curved surface prism fery's prism according to claim 1, it is characterized in that: the angle between the axial line of the cylindrical fixture in described step (3) and the axial line of the holding tank on fixture equals the angle of two curved surface optical axises of fery's prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310033499.1A CN103111630B (en) | 2013-01-29 | 2013-01-29 | Machining method of curved surface prism Fery prism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310033499.1A CN103111630B (en) | 2013-01-29 | 2013-01-29 | Machining method of curved surface prism Fery prism |
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| CN103111630A true CN103111630A (en) | 2013-05-22 |
| CN103111630B CN103111630B (en) | 2014-12-10 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105643374A (en) * | 2016-02-06 | 2016-06-08 | 苏州大学 | Processing method for aspherical mirror |
| CN105690187A (en) * | 2016-02-06 | 2016-06-22 | 苏州大学 | Method for machining off-axis aspherical mirror |
| CN108406505A (en) * | 2018-03-30 | 2018-08-17 | 马鞍山市江南光学有限公司 | A kind of processing method and its hot glue loading device of rhombic prism |
| CN109822360A (en) * | 2019-04-08 | 2019-05-31 | 苏州大学 | A kind of processing method of the double inner conical surface locating pieces of low centering error |
| CN110941037A (en) * | 2019-12-16 | 2020-03-31 | 中国科学院长春光学精密机械与物理研究所 | Processing tool and processing method for Fery prism |
| CN115415888A (en) * | 2022-09-06 | 2022-12-02 | 天津津航技术物理研究所 | Spherical off-axis mirror clamping tool |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105643374A (en) * | 2016-02-06 | 2016-06-08 | 苏州大学 | Processing method for aspherical mirror |
| CN105690187A (en) * | 2016-02-06 | 2016-06-22 | 苏州大学 | Method for machining off-axis aspherical mirror |
| CN105643374B (en) * | 2016-02-06 | 2018-01-09 | 苏州大学 | A kind of processing method of aspherical mirror |
| CN105690187B (en) * | 2016-02-06 | 2018-03-27 | 苏州大学 | The processing method of off-axis aspheric mirror |
| CN108406505A (en) * | 2018-03-30 | 2018-08-17 | 马鞍山市江南光学有限公司 | A kind of processing method and its hot glue loading device of rhombic prism |
| CN108406505B (en) * | 2018-03-30 | 2023-06-13 | 马鞍山市江南光学有限公司 | Processing method of rhombic prism and hot glue winding device thereof |
| CN109822360A (en) * | 2019-04-08 | 2019-05-31 | 苏州大学 | A kind of processing method of the double inner conical surface locating pieces of low centering error |
| CN110941037A (en) * | 2019-12-16 | 2020-03-31 | 中国科学院长春光学精密机械与物理研究所 | Processing tool and processing method for Fery prism |
| CN115415888A (en) * | 2022-09-06 | 2022-12-02 | 天津津航技术物理研究所 | Spherical off-axis mirror clamping tool |
| CN115415888B (en) * | 2022-09-06 | 2024-03-22 | 天津津航技术物理研究所 | Sphere off-axis mirror clamping frock |
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| CN103111630B (en) | 2014-12-10 |
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Effective date of registration: 20200716 Address after: Room 203, Building 23, 1188, Second Ring Road, Shengze Town, Wujiang District, Suzhou City, Jiangsu Province Patentee after: Suzhou Chuansen Hengqi Ecological Technology Co.,Ltd. Address before: 215000 room 1210, building 1, Fenghua Commercial Plaza, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: Suzhou Bingchen Intellectual Property Operation Co.,Ltd. Effective date of registration: 20200716 Address after: 215000 room 1210, building 1, Fenghua Commercial Plaza, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Suzhou Bingchen Intellectual Property Operation Co.,Ltd. Address before: 215123 No. 199 benevolence Road, Suzhou Industrial Park, Jiangsu, Suzhou Patentee before: SOOCHOW University |
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