CN116609939A - Combined type multi-surface rotary reflecting mirror - Google Patents
Combined type multi-surface rotary reflecting mirror Download PDFInfo
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- CN116609939A CN116609939A CN202310885398.0A CN202310885398A CN116609939A CN 116609939 A CN116609939 A CN 116609939A CN 202310885398 A CN202310885398 A CN 202310885398A CN 116609939 A CN116609939 A CN 116609939A
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- 238000005498 polishing Methods 0.000 claims abstract description 24
- 238000003754 machining Methods 0.000 claims abstract description 23
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 3
- 230000013011 mating Effects 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 230000004323 axial length Effects 0.000 claims description 5
- 230000000670 limiting effect Effects 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000002829 reductive effect Effects 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000000227 grinding Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/12—Scanning systems using multifaceted mirrors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/12—Scanning systems using multifaceted mirrors
- G02B26/121—Mechanical drive devices for polygonal mirrors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The application relates to the field of reflector manufacturing, in particular to a combined type multi-surface rotary reflector. The application aims to improve the performance of a polygon mirror and reduce the cost, solve the problem of inaccurate space angle of a reflecting mirror plate caused by the existence of a glue layer, simplify the adjustment mode of the angle of the mirror plate by adopting a mode of positioning a matching surface between the finishing reflecting mirror plate and a core rod, further adjust the angular deviation and the angular deviation of the mirror plate by ensuring the precision of finish machining, further polish the finish machining surface by utilizing a silica sol mixed polishing solution, and design a combined polygon mirror which is free from bonding, reduces the machining cost, has high machining yield and can ensure the space angle of the mirror plate.
Description
Technical Field
The application relates to the field of reflector manufacturing, in particular to a combined type multi-surface rotary reflector.
Background
A polygon rotary mirror, abbreviated as a polygon mirror or a turning mirror, is generally referred to as a mirror in the shape of a regular polygon (for example, a regular tetrahedron, a regular pentahedron, a regular hexahedron), is a core optical element in a rotary scanning optical system, and is widely used in optical systems such as a laser printer, a scanner, and an automobile radar. In an automobile radar, the motor rotates to drive, the polygon mirror can reflect light rays emitted by the laser light source, the light rays are scanned to a subsequent beam expanding system and then hit the surface of a detected object, diffuse reflection light paths generated by the light rays on the detected object are returned to be received by the detector, and the distance of the detected object can be calculated by utilizing time difference.
The polygon mirror can be divided into an integrated polygon mirror and a combined (also called split) polygon mirror according to its structure, i.e. the integrated polygon mirror is integrally made of one piece of material, such as an all-aluminum polygon mirror processed by using alloy aluminum, the reflecting mirror surface facing the outer side is an aluminum mirror surface (which is subsequently coated on the aluminum mirror surface) finely carved and milled by using a high-precision machine tool, or such as an all-glass prism made by glass grinding and polishing, and the reflecting mirror surface facing the outer side is a polished glass mirror surface (which is subsequently coated on the glass mirror surface), and the integrated polygon mirror has simple structure but low processing efficiency and high cost. The combined polygon mirror is generally formed by combining a central rotating frame (mandrel bar) and a reflecting mirror facing the outer side, and the reflecting mirror can be manufactured at low cost, thereby reducing the cost of the whole polygon mirror.
The combined polygon mirror has the combination mode of the central rotating skeleton and the reflecting mirror surface facing to the outer side, and has direct adhesion, direct welding adhesion, adhesion or combination with mechanical regulating mechanism. The presence of the glue layer can lead to an inaccuracy in the spatial angle of the mirror plate, as in patent 202222651709.0 and patent 202220757763.0, aiming at improving the quality of the adhesion; patent 202220612215.9, aiming at improving the space angle of the reflecting mirror surface by a precise adjusting mechanism, wherein the connection mode of the mirror frame and the lens is not free from gluing; 202011511121.4 and 202110265028.8, the spatial angle adjustment mechanism of the mirror surface is complex, difficult to operate and costly. In addition, the bonding layer has essential defects such as influence on the service life of the product or the environmental adaptability, the requirement on the machining precision of the mechanically matched angle-controlled polygon mirror is higher, the precision machining process is insufficient, the matching is inaccurate and the angle of the polygon mirror cannot be controlled, and meanwhile, the error is easily caused by thermal stress and thermal deformation during machining.
In order to improve the performance of the polygon mirror and reduce the cost, a combined polygon mirror which is free from adhesion, can ensure the space angle of a lens and is simple and easy to assemble is needed, meanwhile, the finish machining area is reduced, and the improvement of the finish machining process is a technical problem to be solved urgently.
Disclosure of Invention
The application aims to solve the technical problem of designing a combined type polygonal mirror which overcomes the defect of complete rigid connection, enables a reflecting mirror to be free from adhesion, ensures the space angle of the mirror, realizes small finish machining area and has low machining cost.
The combined rotary polygon mirror is required to ensure that the spatial angle of the outward facing mirror surface is accurate. The spatial angle deviation includes a pyramid deviation, which refers to an angle deviation between the reflecting mirror surface and a reference plane perpendicular to the axis, for example, a deviation from 0 ° for a cylindrical polygon mirror, and an angle deviation, which refers to an angle deviation from a nominal value between adjacent reflecting mirror surfaces, for example, a deviation from 72 ° for a penta mirror. Turning mirrors for lidar are usually to level 1' for angular deviations and angular deviations, for example 0.5' angular deviations 1'.
In order to achieve the above purpose, the technical scheme of the application is as follows:
the utility model provides a modular multiaspect rotating mirror, includes plug, external rotating electrical machines's plug shaft hole, speculum, lightening hole, and wherein plug shaft hole and plug axis coincidence, lightening hole set up on the plug, be equipped with the reflecting mirror face on the mirror, cooperate with the plug through the location mating surface, the speculum still includes fixed knot constructs, and fixed knot constructs from lightening hole runs through plug and speculum contact, makes mirror and plug realize fixed connection, carries out finish machining to the location mating surface, through the pyramid deviation precision and the angle deviation precision of the mechanical positioning control mirror of location mating surface.
Further, the positioning matching surface is one of a dovetail groove surface, a convex table surface and a bevel plane, polishing is carried out by utilizing silica sol mixed polishing liquid in the finish machining process of the positioning matching surface, wherein the particle diameter of alumina in the polishing liquid is 2 mu m, the concentration of alumina is 3wt%, abrasive particles of silica gel mixed liquid are silica, the particle diameter is 30nm, the concentration is 3wt%, the pH=10 of the polishing liquid, the pressure is 30kPa, the flow rate of the polishing liquid is 5ml/min, and the rotating speed is set to 80rpm.
Further, the fixing structure is a screw, the number of the screws on each surface of the reflecting mirror is not less than 2, the specification of the screw is not more than M3, and the force application direction of the screw is perpendicular to the reflecting mirror surface.
Further, the fixed knot constructs and is limit mortise and tenon preforming and mortise and tenon hole, and the mortise and tenon hole sets up on the plug, and the speculum sets up the forked tail structure, and wherein mortise and tenon hole and tenon are arbitrary combination in square hole and square stick, round hole and the taper pin, and the force application direction vertical reflection mirror face of limit mortise and tenon preforming to the mirror is inwards.
Furthermore, the fixed structure is an angle mortise and tenon pressing piece arranged at the vertex of the reflecting mirror, and the force application direction is the direction of an angle bisector of an included angle formed by the reflecting mirrors at two sides.
Further, the mirror finish is polished by disc lapping as a whole and then coated with a reflective film.
Further, the materials of the reflecting lens and the core rod are metals.
Further, the reflecting mirror plate is one of glass or ceramic, and a protective gasket is arranged between the reflecting mirror plate and the screw, wherein the material of the protective gasket is one or more of plastics, rubber or red copper.
Further, the protection gasket is arranged along the axial direction of the core rod, both ends of the protection gasket are designed into inclined grooves, the formed axial limiting surface is in contact with the reflecting lens, the axial length of the protection gasket is smaller than that of the reflecting lens, and the protection gasket is designed into a clamping groove structure.
Further, the overall appearance of the multi-surface rotary reflecting mirror is one of a column type or a tower type, and the number of the reflecting mirrors is not more than 10.
It should be noted that, the above examples take the assembly of four-sided cylindrical polygon mirrors as an example, and the technical solution of the present application is obviously not limited to four reflecting mirrors, but can be applied to other numbers of reflecting mirrors; the present application is not limited to the column-type polygon mirror, but may be applied to a tower-type polygon mirror, or a so-called corner-type or tilt-type polygon mirror.
The application has the beneficial effects that:
the method has the advantages that various adverse effects caused by adhesion are eliminated, the mandrel is hard-connected with the reflecting mirror, and the angular cone deviation and the angle deviation of the reflecting mirror are ensured by mechanical positioning of the positioning matching surface without being regulated by screws, so that the combined type polygonal mirror is reliable in performance and simple and convenient to assemble;
the reflector can be obtained by grinding and polishing the upper disc in a large area and then cutting, so that the total cost of the rotary mirror is obviously reduced; the reflector material can be metal or nonmetal, and the selection surface is wide; the reflector can be conveniently detached and replaced, so that the rotating mirror cannot be scrapped as a whole due to the defect of one of the rotating mirrors;
the core rod and the reflecting mirror can be prepared from metal drawn sectional materials, and the positioning matching surface of the drawn sectional materials can be obtained after partial finish machining without machining, so that the finish machining workload is small and the difficulty is low, and the total cost of the rotating mirror is obviously reduced;
the hard connection between the core rod and the reflecting mirror can be realized by various embodiments, the number of reflecting mirror surfaces of the rotating mirror is not limited, and the column rotating mirror or the tower rotating mirror can be implemented under reasonable structural planning.
The finish machining area of the positioning matching surface is far smaller than the area of the reflecting mirror surface, the pyramid deviation and the angle deviation of the reflecting mirror are controlled by machining the reflecting mirror surface, the machining cost is reduced, and meanwhile, even if polishing is performed, the matching quality is improved, and the requirement is far smaller than that of engraving and milling of the integral rotating mirror.
In the aspect of polishing, the raised parts, burrs and roughness on the positioning matching surface are removed, so that the surface of the positioning matching surface is smoother and smoother, micro defects and unevenness on the positioning matching surface of the reflecting lens are eliminated, meanwhile, the pressure is controlled at 30kPa, enough grinding force can be ensured, the surface of a workpiece is not excessively damaged, proper flow rate (5 ml/min) and rotating speed (80 rpm) can ensure that polishing liquid is uniformly distributed on the positioning matching surface, proper cooling and lubricating effects are provided, and surface temperature rise and thermal deformation are prevented.
Drawings
FIG. 1 is a schematic cross-sectional view of an assembly of a screw outer-ejection dovetail slot;
FIG. 2 is a schematic cross-sectional view of a screw pull-in dovetail assembly;
FIG. 3 is a schematic cross-sectional view of a screw direct pull-in assembly;
FIG. 4 is a schematic cross-sectional view of a single lens mortise and tenon pull type assembly structure;
FIG. 5 is a schematic cross-sectional view of a multi-lens mortise and tenon pull assembly;
FIG. 6 is a schematic cross-sectional view of a screw outer crown nonmetallic lens dovetail assembly;
FIG. 7 is a schematic diagram of an assembled structure of a non-metallic lens and a protective pad;
FIG. 8 is a schematic cross-sectional view of a mortise and tenon inner pull type nonmetallic lens assembly structure;
FIG. 9 is a schematic cross-sectional view of a screw pull-in type bevel mating assembly;
the reference numerals in the drawings are as follows:
10. a core rod; 11. a mandrel shaft hole; 12. a side weight-reducing groove; 13. a lightening hole; 14. mortise and tenon holes; 20. a reflection lens; 21. a reflecting mirror surface; 22. positioning the matching surface; 23. an axial limit surface; 30. a screw; 40. dovetail tabletting; 41. tabletting side mortise and tenon; 42. tabletting the angle mortise and tenon joints; 50. and (5) protecting the gasket.
Detailed Description
The application is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and are not intended to limit the scope of the present application.
Example 1
As shown in fig. 1, the combined metal reflector includes a core rod 10 and a reflector plate 20, which are respectively formed into a dovetail groove structure, the core rod 10 has a central shaft hole 11 for connecting with a rotating electric machine, a side weight-reducing groove 12, a middle weight-reducing hole 13, a positioning mating surface 22, and other detailed structures, and the reflector plate 20 has a reflector surface 21, a positioning mating surface 22, and other detailed structures. The screw 30 abuts the mirror plate 20 from the outside of the intermediate lightening hole 13, and the positioning mating surface 22 in the form of a dovetail groove ensures the spatial angular attitude of the mirror plate 20.
Both the core rod 10 and the mirror plate 20 may use metal profiles, in particular precision drawn profiles. On the one hand, the subsequent machining amount can be obviously reduced by using the profile, on the other hand, the dimensional accuracy of the precisely drawn profile can reach the wire level, so that for a turning mirror with a low requirement, the profile surface can be directly used as the positioning matching surface 22, the accuracy of the positioning matching surface is further improved, the local positioning matching surfaces 22 of the core rod 10 and the reflecting lens 20 are respectively refined, the refined area of the positioning matching surface 22 is far smaller than the area of the reflecting lens 20, and the machining cost is obviously reduced.
Wherein the locating mating surface 22 is a dovetail surface that is assembled after it is desired. Specifically, the trimming of the positioning mating surface 22 is performed under the guidance of the precise goniometer, and when the goniometer displays the direction and the numerical value of the pyramid deviation and the angle deviation, the precise trimming and polishing are performed at the local position of the positioning mating surface 22 in a targeted manner, so that the pyramid deviation and the angle deviation reach the standard, for example, are better than 1 minute. The finishing of the locating mating surface 22 may be performed on one or both of the mandrel 10 and the mirror plate 20.
Meanwhile, the positioning matching surface is required to be polished once, wherein the grain diameter of alumina in the polishing solution is 2 mu m, the concentration of alumina is 3wt%, abrasive grains of the silica gel mixed solution are silicon dioxide, the grain diameter is 30nm, the concentration is 3wt%, the pH value of the polishing solution is=10, the pressure is 30kPa, the flow rate of the polishing solution is 5ml/min, the rotating speed is set to 80rpm, and the polishing processing cost is far less than engraving and milling of the integral rotary mirror.
The mirror surface 21 can be produced by disk lapping and polishing integrally over a large area, and thus good surface flatness and surface roughness such as pv0.025um and ra0.005um can be easily obtained.
Preferably, the reflector plate 21 can be assembled after being coated with a reflecting film, blind pits can be formed on the inner side of the reflector plate 20 relative to the positions of the screws 30, and the force application direction of the screws is perpendicular to the outward direction of the reflector plate.
Preferably, the material of the rotating mirror is aluminum alloy, and the profile can be subjected to upsetting treatment, oxidation treatment of the aluminum surface, sealing treatment and the like.
Preferably, the materials of the mandrel 10 and the reflector plate 20 are preferably drawn into metal profiles, but the application does not exclude the use of other materials for the mandrel 10 and the reflector plate 20, such as cast nonmetallic materials or extruded metallic materials, and only requires reasonable cost and easy processing of the locally positioned mating surfaces.
Example 2
As shown in FIG. 2, the screw 30 is of a pull-in configuration, the reflector plate 20 is still formed as a dovetail, and the screw pulls the dovetail tab 40 in, causing the reflector plate 20 to be "hard-wired" to the mandrel 10. In this embodiment, the locating mating surface 22 is present on the outer side of the mandrel 10 and the inner side of the reflector 20, and the side of the mandrel 10 remains with the side weight-reducing slot 12, making the locating mating surface 22 a raised land surface that is locally raised to reduce the area of finishing required. For the mirror plate 20, it is easy to ensure parallelism of the mirror surface 21 and the inside positioning mating surface 22 to the order of seconds.
Example 3
Further simplifying removable dove tail press piece 40, as shown in fig. 3, the reflector 20 is pulled directly by screw 30, only need to prefabricate blind screw hole on reflector 20, of course the thickness of reflector 20 can not be made thin, the thickness needs to be 4mm, the number of screws per face is not less than 2, 4 screws are usually needed, the specification of screws is not more than M3, and the screws are operated from the end face by special elbow spanner.
Example 4
For the case of small size of the polygon mirror, the lightening holes 13 cannot provide enough space to operate the screws, and "hard connection" can be achieved by a mortise and tenon type internal pulling structure as shown in fig. 4, and the edge mortise and tenon pressing piece 41 is inserted into a tenon (not shown in the drawing) at the mortise hole 14 of the core rod 10 through the dovetail internal pulling reflection lens 20. The mortise hole 14 in fig. 4 is exemplified as a square hole, but may be a round hole or other shapes, and the tenon used may be a square bar, taper pin, eccentric screw, or the like, which will not be described herein. As with fig. 2 and 3, the locating mating surface 22 now appears on the outside surface of the mandrel 10 (i.e., the partial raised surface) and the inside surface of the reflector plate 20.
Example 5
As shown in fig. 5, according to example 4, two reflection lenses 20 on both sides are centripetally pressed by using the mortise and tenon pressing piece 42, and the fixed force application direction to the dovetail groove of the reflection lens 20 is not perpendicular to the reflection mirror surface 21, but the reflection lenses 20 on both sides form the angular bisector direction of the included angle, and other principle is the same as that of fig. 4.
Example 6
As shown in fig. 6, fig. 1 to 5 are all examples of the reflecting mirror 20 made of a metal material, and the present application does not exclude the reflecting mirror 20 made of a non-metal material, such as glass or ceramic, which is cut after polishing and coating a large area. Since the nonmetallic material is brittle, it is necessary to separate the screw 30 and the reflection lens 20 with the protective pad 50 to disperse stress, and the material of the protective pad 50 may be plastic, rubber, red copper, or the like.
The reflector plate 20 is made of nonmetallic materials, the dovetail mechanism is a positioning matching surface 22 on two sides, and the core rod 10 extends out at four corners. The extension of the core rod 10 at the four corners occupies a partial position of the outer side of the turning mirror, so that the mirror surface 21 cannot be made as large as possible, but this effect can be overcome by the optical design and software design of the radar.
Another function of the protective spacer 50 is that the snap groove structure can be designed to prevent axial play of the mirror plate 20. As shown in fig. 7, the reflection mirror 20 rotates around the axis OA, and the protection pad 50 is provided with inclined grooves on the upper and lower sides in the axial direction, respectively, so as to form an axial limiting surface 23 for preventing the axial movement of the reflection mirror 20 (of course, the reflection mirror 20 is also provided with the axial limiting surface 23 correspondingly). Note that the length of the protective spacer 50 in the axial direction is not longer than the length of the reflecting mirror plate 20 in the axial direction in the drawing, and the purpose is to ensure the maximization of the reflecting mirror surface 21 in the axial direction as much as possible. In the embodiment, after the reflecting lens 20 and the protecting pad 50 are clamped into a whole, the reflecting lens is inserted into the dovetail groove of the core rod 10 along the axial direction, and then the reflecting lens is tightly pressed by a screw. The protection pad 50 may not be designed to limit the play, or the axial length of the play limiting surface is greater than the axial length of the reflection lens 20, as required.
Example 7
As shown in fig. 8, based on the embodiment 5, the two reflecting mirrors 20 on both sides are drawn and pressed centripetally by the mortise and tenon joint 42, the fixing force application direction of the reflecting mirrors 20 is not perpendicular to the reflecting mirror surface 21, but the reflecting mirrors 20 on both sides form the angular bisector direction of the included angle, and simultaneously, the mortise and tenon joint protrudes outwards to occupy the part of the position of the outer side surface of the turning mirror, and other principles are the same as those of fig. 5.
Example 8
As shown in fig. 9, in the embodiment 3, the reflector 20 and the mandrel 10 are connected by the screw 30, and the positioning mating surface 22 is a slant plane, and other principles are the same as in fig. 3. In the present embodiment, the positioning mating surface 22 is a two-sided inclined plane, and is a two-sided inclined plane with a large V-groove structure for the core rod 10 and a trapezoidal structure for the reflector 20.
Example 9
The above examples of the reflecting mirror 20 take the assembly of four-sided cylindrical polygon mirrors as an example, the technical scheme of the present application is not limited to four reflecting mirror surfaces, but can be applied to other numbers of reflecting mirror surfaces, and the number of reflecting mirror surfaces is usually not more than 10 so as to avoid the mechanical structure being too complex; meanwhile, the present application is not limited to the column-type polygon mirror, but may be applied to a tower-type polygon mirror, or what is commonly called a corner-type, tilt-type polygon mirror.
The foregoing is merely a preferred embodiment of the present application, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present application, and such modifications and variations should also be regarded as being within the scope of the application.
Claims (10)
1. The utility model provides a modular multiaspect rotating mirror, includes plug (10), external rotating electrical machines's plug shaft hole (11), reflection lens (20), lightening hole (13), and wherein plug shaft hole (11) and plug (10) axis coincidence, lightening hole (13) set up on plug (10), are equipped with reflection mirror face (21) on reflection lens (20), cooperate with plug (10) through location mating surface (22), its characterized in that, the reflection lens still includes fixed knot constructs, and fixed knot constructs from lightening hole (13) run through plug (10) and reflection lens (20) contact, makes reflection lens (20) realize fixed connection with plug (10), carries out finish machining to location mating surface (22), through the angular deviation precision and the angular deviation precision of the mechanical positioning control reflection lens (20) of location mating surface (22).
2. The combined type multi-surface rotary mirror according to claim 1, wherein the positioning matching surface (22) is one of a dovetail groove surface, a convex table surface and a bevel plane, polishing is performed by using silica sol mixed polishing liquid in the finish machining process of the positioning matching surface (22), wherein the particle diameter of alumina in the polishing liquid is 2 μm, the concentration of alumina is 3wt%, abrasive particles of the silica gel mixed liquid are silica, the particle diameter is 30nm, the concentration is 3wt%, the pH=10 of the polishing liquid, the pressure is 30kPa, the flow rate of the polishing liquid is 5ml/min, and the rotating speed is set to 80rpm.
3. The combined type multi-surface rotary mirror according to claim 1, wherein the fixing structure is screws (30), the number of screws per surface of the mirror is not less than 2, the specification of the screws is not more than M3, and the force application direction of the screws is perpendicular to the mirror surface (21).
4. The combined type multi-surface rotary reflecting mirror according to claim 1, wherein the fixing structure is a side mortise and tenon pressing sheet (41) and a mortise and tenon hole (14), the mortise and tenon hole (14) is formed in a core rod (10), the reflecting mirror (20) is provided with a dovetail structure, the mortise and tenon hole (14) and the tenon are any one of a square hole, a square rod, a round hole and a taper pin, and the force application direction of the side mortise and tenon pressing sheet (41) to the reflecting mirror (20) is vertical to the reflecting mirror surface (21) inwards.
5. The combined type multi-surface rotary mirror according to claim 1, wherein the fixing structure is an angular mortise and tenon pressing piece (42) arranged at the vertex of the reflecting mirror plate (20), and the force application direction is the angular bisector direction of an included angle formed by the reflecting mirror plates (20) at two sides.
6. A combined multiple surface rotary mirror according to claim 1, characterized in that the mirror surface (21) is machined by disc lapping and polishing as a whole and then coated with a reflective film.
7. The combined polygon mirror of claim 1, wherein the material of the mirror plate (20) and the mandrel (10) is metal.
8. The multi-faceted rotating mirror according to claim 1, wherein the mirror plate (20) is one of glass or ceramic, a protective spacer (50) is provided between the mirror plate (20) and the screw (30), wherein the material of the protective spacer (50) is one or more of plastic, rubber or red copper.
9. The multi-surface rotating mirror according to claim 8, wherein the protection spacer (50) is disposed along the axial direction of the core rod (10), both ends are designed as inclined grooves, and the formed axial limiting surface (23) is in contact with the reflecting mirror plate (20), wherein the axial length of the protection spacer (50) is smaller than the axial length of the reflecting mirror plate (20).
10. The combined type multi-surface rotary mirror according to claim 1, wherein the multi-surface rotary mirror has an overall shape of one of a column type or a tower type, and the number of the reflecting mirrors (20) is not more than 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310885398.0A CN116609939A (en) | 2023-07-19 | 2023-07-19 | Combined type multi-surface rotary reflecting mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310885398.0A CN116609939A (en) | 2023-07-19 | 2023-07-19 | Combined type multi-surface rotary reflecting mirror |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116609939A true CN116609939A (en) | 2023-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310885398.0A Pending CN116609939A (en) | 2023-07-19 | 2023-07-19 | Combined type multi-surface rotary reflecting mirror |
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| Country | Link |
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| CN (1) | CN116609939A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1010455A (en) * | 1996-06-20 | 1998-01-16 | Matsushita Electric Ind Co Ltd | Polygon mirror scanner motor |
| JP2012123087A (en) * | 2010-12-07 | 2012-06-28 | Brother Ind Ltd | Method for manufacturing optical scanner and optical scanner |
| CN204595326U (en) * | 2014-04-25 | 2015-08-26 | 美蓓亚株式会社 | Polygon mirror scanner motor |
| CN111536949A (en) * | 2020-06-04 | 2020-08-14 | 马鞍山芯乔科技有限公司 | Multi-mirror rotary image-taking device |
| CN215833611U (en) * | 2021-08-25 | 2022-02-15 | 宁波永新光学股份有限公司 | Multi-surface reflector scanning system |
| CN114460560A (en) * | 2021-12-24 | 2022-05-10 | 宁波永新光学股份有限公司 | Surface mount type multi-surface rotating mirror scanning system and manufacturing method thereof |
-
2023
- 2023-07-19 CN CN202310885398.0A patent/CN116609939A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1010455A (en) * | 1996-06-20 | 1998-01-16 | Matsushita Electric Ind Co Ltd | Polygon mirror scanner motor |
| JP2012123087A (en) * | 2010-12-07 | 2012-06-28 | Brother Ind Ltd | Method for manufacturing optical scanner and optical scanner |
| CN204595326U (en) * | 2014-04-25 | 2015-08-26 | 美蓓亚株式会社 | Polygon mirror scanner motor |
| CN111536949A (en) * | 2020-06-04 | 2020-08-14 | 马鞍山芯乔科技有限公司 | Multi-mirror rotary image-taking device |
| CN215833611U (en) * | 2021-08-25 | 2022-02-15 | 宁波永新光学股份有限公司 | Multi-surface reflector scanning system |
| CN114460560A (en) * | 2021-12-24 | 2022-05-10 | 宁波永新光学股份有限公司 | Surface mount type multi-surface rotating mirror scanning system and manufacturing method thereof |
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