CN111805764B - Machining method of three-edge reflector - Google Patents
Machining method of three-edge reflector Download PDFInfo
- Publication number
- CN111805764B CN111805764B CN202010695151.9A CN202010695151A CN111805764B CN 111805764 B CN111805764 B CN 111805764B CN 202010695151 A CN202010695151 A CN 202010695151A CN 111805764 B CN111805764 B CN 111805764B
- Authority
- CN
- China
- Prior art keywords
- triangular
- reference block
- reflector
- support base
- turning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000003754 machining Methods 0.000 title description 6
- 238000007514 turning Methods 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 5
- 238000004804 winding Methods 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007516 diamond turning Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/16—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by turning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
- B28D7/04—Accessories specially adapted for use with machines or devices of the preceding groups for supporting or holding work or conveying or discharging work
- B28D7/043—Accessories specially adapted for use with machines or devices of the preceding groups for supporting or holding work or conveying or discharging work the supporting or holding device being angularly adjustable
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses a method for processing a triangular reflector, and belongs to the field of optical ultra-precision processing. The technical scheme is as follows: this is ensured by a set of precision mechanical fixtures suitable for turning, which comprises a precision triangular reference block 10 and a triangular support base 20 completed by the prior art. Two reflectors 30 to be processed are simultaneously arranged on two sides of a triangular reference block 10, then the reference block 10 and a triangular support base 20 are combined into a whole through a central hole 11, the bottom surface of the support base 20 is fixed on a vacuum chuck of a lathe and single-side turning of the two reflectors is completed, and the feed amount at the moment is recorded; after turning, loosening the screw of the center hole, and directly winding the triangular reference block 10 around the centerOAnd after rotating 120 degrees, combining with the triangular support base 20 again, finishing the turning of the second surface of the reflector by the same feed amount in the method, and so on until the processing of all the surfaces is finished. The method can effectively reduce repeated positioning errors and surface size errors in the turning process and improve the turning efficiency.
Description
Technical Field
The invention belongs to the field of optical ultra-precision machining, and particularly relates to a machining method of a triangular reflector.
Background
The three-edge reflector belongs to a laser scanning rotating mirror, and is provided with three reflecting surfaces, so that an incident beam can be reflected or refracted in a specific mode and time sequence, and deflection imaging of the beam is realized. At present, the ultraprecision machining of the multi-surface reflecting prism in China is mainly finished by milling with a single crystal fly cutter, and an autocollimation optical instrument is matched with the detection of the precision of a rotating angle, so that the integral structure and the mode are more complicated, and the efficiency is lower. For example, chinese patent CN1147378 discloses a "method for processing a high-precision metal scanning rotating mirror", which can reduce the mirror surface step, but has low processing efficiency, requires a large number of parts for matching a rotating table and an auto-collimation instrument, and is tedious to adjust. For another example, chinese patent CN108051880A discloses a method for processing a metal polygon scanning prism, which is only suitable for milling single crystal fly cutter and not suitable for turning because of asymmetric overall structure, and because a plurality of prisms are fixed together by long rods, the deformation is difficult to control, the difference in height of each prism cannot be effectively controlled, and the precision is difficult to ensure.
Disclosure of Invention
The invention aims to provide a method for machining the triangular reflector, which has high efficiency, small repeated positioning error and high surface size precision and is suitable for single-point diamond turning.
The technical scheme for realizing the aim of the invention is that
The method is realized by a symmetrical turning fixture consisting of the precise triangular reference block 10 and the triangular support base 20 which are finished in the prior art. Two reflectors 30 to be processed are simultaneously arranged on two sides of a triangular reference block 10, then the reference block 10 and a triangular support base 20 are combined into a whole through a central hole 11, the bottom surface of the support base 20 is fixed on a vacuum chuck of a lathe and single-side turning of the two reflectors is completed, and the feed amount at the moment is recorded; and after turning is finished, loosening the central hole screw, directly rotating the triangular reference block 10 by 120 degrees around the center O thereof, then combining the triangular reference block with the triangular support base 20 again, finishing turning of the second surface of the reflector by the same feed amount in the method, and so on until all surfaces are machined.
Three angles of the reference block 10 are all 60 degrees, the error precision is controlled at the second level, and the precision exceeds the required precision of the triangular reflector to be processed; three center holes 11 are uniformly distributed for 10 circles on the reference block, cylinders on two sides are connected with the triangular reflector to be processed, the side surface of the triangular reflector is provided with three positioning holes 12 which are matched and positioned with three positioning holes 31 of the reflector, and the horizontal end surface of the reflector after installation is ensured.
The included angle of the two surfaces of the supporting base 20 is 60 degrees, the precision is controlled at the second level, and the side surfaces are ground; the bottom surface is attached with a through hole which is matched and fixed with a lathe sucker. The reference block 10 and the supporting base 20 are made of stainless steel, and the triangular reflector 30 is made of aluminum.
The foregoing description is only an overview of the method of the present invention, and in order to make the technical solutions of the present invention more clearly understood, the method can be implemented according to the contents of the description, and in order to make the above and other objects, features, and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic view of an overall structure of a triangular reflector and a fixture according to an embodiment of the present invention;
FIG. 2 is a schematic view of a triangular support base according to an embodiment of the present invention;
description of the labeling: 10. a triangular reference block; 11. a central bore; 12. positioning holes; 20. a triangular support base; 21. a threaded hole; 22. Positioning bolts; 23. grinding the convex surface; 24. a through hole; 30. a triangular reflector; 31. a prism positioning hole; r, a monocrystal turning tool.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
Referring to fig. 1, the implementation method is as follows: two reflectors 30 to be processed are simultaneously arranged on two sides of a triangular reference block 10 through a positioning hole 31 and a positioning hole 12, then the reference block 10 and a triangular support base 20 are combined into a whole through a central hole 11, the bottom surface of the support base 20 is fixed on a single crystal cutter R for a vacuum chuck of a lathe through a through hole 24 to finish single-side turning of the two reflectors, and the cutter feeding amount at the moment is recorded; and after turning is finished, loosening the central hole screw, directly rotating the triangular reference block 10 by 120 degrees around the center O thereof, then combining the triangular reference block with the triangular support base 20 again, finishing turning of the second surface of the reflector by the same feed amount in the method, and so on until all surfaces are machined.
Referring to fig. 1, it is a schematic view of the overall structure of the triangular reflector and the fixture provided in this embodiment. The main parts of the structure are a precision triangular reference block 10 and a triangular support base 20 which are completed by the prior art. The three angles of the precise triangular reference block 10 are all 60 degrees, and the error precision is controlled to be second-level and exceeds the required precision of the triangular reflector to be processed; three center holes 11 are uniformly distributed for 10 circles on the reference block, cylinders on two sides are connected with the triangular reflector to be processed, the side face of the triangular reflector is provided with three positioning holes 12 which are matched and positioned with three positioning holes 31 of the prism, and the horizontal end face of the prism after installation is ensured.
Referring to fig. 2, it is a schematic structural diagram of the triangular support base 20 provided in this embodiment. The positioning bolt 22 in the structure can ensure that the mounting position of the triangular reference block 10 on the supporting base after rotating 120 degrees every time is consistent with that before rotating, and repeated positioning errors are eliminated. The grinding convex surface 23 can improve the matching precision of the reference block 10 and the supporting base 20 and also can correct the angle error.
The embodiment of the invention shows that the processing mode based on ultra-precision turning has compact integral structure and is completely symmetrical and beneficial to the dynamic balance calibration of the lathe; the combination of the reference block and the supporting base avoids the use of an optical autocollimator and a rotating disc, so that the processing is simplified; the efficiency is improved while the repeated positioning error is eliminated, and the method has great application potential in optical ultra-precision turning.
Claims (1)
1. A method for processing a triangular reflector is characterized by comprising the following steps: the technical scheme comprises the following steps:
the method is realized by a symmetrical turning clamp consisting of a precise triangular reference block (10) and a triangular support base (20); two triangular reflectors (30) to be processed are simultaneously arranged on two sides of a triangular reference block (10), then the triangular reference block (10) and a triangular support base (20) are combined into a whole through a central hole (11), the bottom surface of the triangular support base (20) is fixed on a vacuum chuck of a lathe and finishes single-side turning of the two reflectors, and the feed amount at the moment is recorded; after turning is finished, the screw with the center hole is loosened and taken out, and the triangular reference block (10) is directly wound around the center of the screwOAfter rotating 120 degrees, combining with the triangular support base (20) again, finishing the turning of the second surface of the reflector by the same feed amount in the method, and so on until the processing of all surfaces is finished;
the three angles of the triangular reference block (10) are all 60 degrees, and the error precision is controlled to be more than the required precision of the triangular reflector to be processed in a second level; three center holes (11) are uniformly distributed on the periphery of a triangular reference block (10), cylinders on two sides are connected with a triangular reflector to be processed, three positioning holes (12) are formed in the side surface of the triangular reflector to be matched and positioned with three prism positioning holes (31) of the reflector, and the end surface is ensured to be horizontal after installation;
the included angle of two surfaces of the triangular support base (20) is 60 degrees, the precision is controlled at the second level, and the side surface is ground; the bottom surface is attached with a through hole which is matched and fixed with a lathe sucker;
the triangular reference block (10) and the triangular support base (20) are made of stainless steel, and the triangular reflector (30) is made of aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010695151.9A CN111805764B (en) | 2020-07-19 | 2020-07-19 | Machining method of three-edge reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010695151.9A CN111805764B (en) | 2020-07-19 | 2020-07-19 | Machining method of three-edge reflector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111805764A CN111805764A (en) | 2020-10-23 |
| CN111805764B true CN111805764B (en) | 2022-02-15 |
Family
ID=72866141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010695151.9A Expired - Fee Related CN111805764B (en) | 2020-07-19 | 2020-07-19 | Machining method of three-edge reflector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111805764B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399747A (en) * | 2021-06-28 | 2021-09-17 | 江苏集萃精凯高端装备技术有限公司 | Regular hexahedron reflector single-point diamond machine tool and machining method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003094204A (en) * | 2001-09-25 | 2003-04-03 | Seibu Electric & Mach Co Ltd | Nc machining machine for machining works such as a plurality of lenses at the same time |
| KR100808104B1 (en) * | 2006-12-21 | 2008-02-28 | 한국기초과학지원연구원 | Prism grinding machine |
| CN104668988A (en) * | 2015-01-09 | 2015-06-03 | 南阳市百施特光电有限公司 | Tool clamp for machining prism and application method of tool clamp |
| CN106392821A (en) * | 2016-11-04 | 2017-02-15 | 中国航空工业集团公司北京航空精密机械研究所 | Free curved prism machining method |
| CN106607754A (en) * | 2015-10-15 | 2017-05-03 | 中国航空工业集团公司北京航空精密机械研究所 | Free-form surface prism precision machining fixture |
| CN108051880A (en) * | 2017-12-08 | 2018-05-18 | 苏州大学 | A kind of processing method of metal multiaspect scan prism |
| CN110614382A (en) * | 2019-09-03 | 2019-12-27 | 同济大学 | Processing method for turning free-form surface prism in ultra-precision manner |
| CN110842476A (en) * | 2019-11-19 | 2020-02-28 | 中国船舶重工集团公司第七0七研究所 | Method for manufacturing pentahedron reflector applied to high-speed scanning system |
-
2020
- 2020-07-19 CN CN202010695151.9A patent/CN111805764B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003094204A (en) * | 2001-09-25 | 2003-04-03 | Seibu Electric & Mach Co Ltd | Nc machining machine for machining works such as a plurality of lenses at the same time |
| KR100808104B1 (en) * | 2006-12-21 | 2008-02-28 | 한국기초과학지원연구원 | Prism grinding machine |
| CN104668988A (en) * | 2015-01-09 | 2015-06-03 | 南阳市百施特光电有限公司 | Tool clamp for machining prism and application method of tool clamp |
| CN106607754A (en) * | 2015-10-15 | 2017-05-03 | 中国航空工业集团公司北京航空精密机械研究所 | Free-form surface prism precision machining fixture |
| CN106392821A (en) * | 2016-11-04 | 2017-02-15 | 中国航空工业集团公司北京航空精密机械研究所 | Free curved prism machining method |
| CN108051880A (en) * | 2017-12-08 | 2018-05-18 | 苏州大学 | A kind of processing method of metal multiaspect scan prism |
| CN110614382A (en) * | 2019-09-03 | 2019-12-27 | 同济大学 | Processing method for turning free-form surface prism in ultra-precision manner |
| CN110842476A (en) * | 2019-11-19 | 2020-02-28 | 中国船舶重工集团公司第七0七研究所 | Method for manufacturing pentahedron reflector applied to high-speed scanning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111805764A (en) | 2020-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113967852B (en) | Processing method of metal multi-surface reflecting prism | |
| CN111805764B (en) | Machining method of three-edge reflector | |
| CN110614382B (en) | Processing method for turning free-form surface prism in ultra-precision manner | |
| CN112157272A (en) | Machining method and device for polygon scanning mirror | |
| CN101670539B (en) | Lens edge thickness adjustment device and lens grinding and milling processing method | |
| CN201505849U (en) | Lens edge thickness adjusting device | |
| CN115431105A (en) | Spherical off-axis mirror processing method | |
| CN113399747A (en) | Regular hexahedron reflector single-point diamond machine tool and machining method thereof | |
| Doel et al. | Assembly, alignment, and testing of the DECam wide field corrector optics | |
| CN108051880B (en) | Method for processing metal multi-face scanning prism | |
| CN204694909U (en) | The galvanometer eyeglass adhering device that a kind of tenon coupling rigidity is adjustable | |
| CN109530722B (en) | Self-adaptive fixing device and machining method of thin-wall aluminum alloy reflector | |
| CN104459840A (en) | Optical wedge and machining method | |
| CN211805286U (en) | Optical centering edging fixture for plano-convex cylindrical mirror | |
| CN112157273A (en) | Machining method and machining device for polygon scanning mirror | |
| CN210360683U (en) | Centering positioning fixture for pyramid prism blank optical cement to pyramid leaning body | |
| CN113751770A (en) | Weak-rigidity flexible thin-wall part and ultra-precision machining method thereof | |
| CN108050959B (en) | On-line detection system for metal multi-surface scanning prism processing | |
| CN108594756B (en) | Three-axis linkage machining method of metal reflector | |
| CN115415888B (en) | Sphere off-axis mirror clamping frock | |
| CN111678461A (en) | Functional modular photoelectric autocollimator and light path debugging method thereof | |
| CN205166425U (en) | Elasticity frock clamp suitable for processing of single -point diamond lathe | |
| CN220029967U (en) | Novel pentaprism processing tool | |
| CN219275184U (en) | Universal fixture for processing 90-degree off-axis parabolic reflector | |
| CN110666987A (en) | Production process of special-shaped lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220215 |