High-precision lens positioning integrated system

Abstract

The invention relates to the technical field of lens integration, in particular to a high-precision lens positioning integrated system. Comprising a bottom plate and a mirror base positioning assembly, a plurality of positioning parts are arranged on the mirror base positioning assembly, and a mirror base is matched with the positioning parts and installed on the mirror base positioning assembly; the two groups of guide rail assemblies are respectively arranged on the bottom plate on two sides of the lens base positioning assembly; the horizontal spring support pillar assembly comprises a horizontal mounting seat and a plurality of first spring support pillars used for pressing a lens surface; the two horizontal mounting seats are respectively arranged on the two groups of guide rail assemblies; the vertical spring support pillar assembly comprises a vertical mounting seat and a second spring support pillar used for pressing the side edge of the lens; the vertical mounting base is arranged across the lens base positioning assembly, and the second spring support pillar is arranged in the middle of an upper beam of the vertical mounting base and can penetrate through a reserved gap of the lens base to make contact with the side edge of the lens. According to the invention, the integration precision and repeatability precision can be improved to a certain extent, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of lens integration technology, and in particular to a high-precision lens positioning integration system. Background Technology

[0002] Existing lens integration and fixing methods include mechanical fixing and adhesive bonding. Mechanical fixing uses a clamping ring to secure the lens or a lens edge roller to the lens mount, while adhesive bonding uses various structural adhesives to bond the lens mount and mount together. Compared to mechanical fixing, adhesive bonding requires fewer parts, and the lens mount does not require threaded machining, offering advantages such as lower cost and lighter weight. In applications requiring high mechanical forces or damping, adhesive-bonded lenses are widely used because they experience more uniform stress.

[0003] The usual method for bonding lenses is to machine injection holes in the structural components and inject adhesive into the injection holes to bond and fix the lens to the structural components. However, the positioning accuracy of the adhesive method is generally low and it is not suitable for high-precision lens bonding scenarios.

[0004] In the field of precision optical lens manufacturing, the assembly and adjustment of optical lenses mainly relies on experienced technicians, supplemented by relevant optical testing instruments, and is completed manually based on their experience and intuition. This places extremely high demands on the operators' experience. Assembly process parameters such as assembly position, assembly force, and assembly alignment accuracy can only be determined through the coordination of human eyes and hands. Human subjective factors have a significant impact on the assembly and adjustment process, resulting in low assembly accuracy, low assembly pass rate, and poor repeatability. In addition, when using adhesive fixing methods, because the adhesive requires a certain amount of time to cure, it is difficult to provide a uniform and constant fixing force to the lens manually during the adhesive curing process, leading to low integration accuracy and repeatability. Summary of the Invention

[0005] This application provides a high-precision lens positioning integration system, which can improve integration accuracy and repeatability to a certain extent, thereby increasing production efficiency.

[0006] The high-precision lens positioning integrated system provided in this application includes: The base plate is used to support other mechanisms; A mirror base positioning assembly is disposed in the middle of the base plate; the mirror base positioning assembly is provided with multiple positioning parts; A lens mount for mounting a lens; the lens mount cooperates with the positioning part and is mounted on the lens mount positioning assembly; Two sets of guide rail assemblies are respectively set on the base plates on both sides of the mirror mount positioning assembly; A horizontal spring-loaded column assembly includes a horizontal mounting base and a plurality of first spring-loaded columns for pressing the lens surface; two of the horizontal mounting bases are respectively disposed on two sets of guide rail assemblies and are capable of driving the first spring-loaded columns to move along the guide rail assemblies toward or away from the lens mount; A vertical spring-loaded column assembly includes a vertical mounting base and a second spring-loaded column for pressing the lens edge; the vertical mounting base has a gate-shaped structure and spans across the lens mount positioning assembly; the second spring-loaded column is located in the middle of the upper beam of the vertical mounting base and can pass through the reserved gap of the lens mount to contact the lens edge.

[0007] In a preferred embodiment, the first spring top post and the second spring top post have the same structure, both including: A cylindrical spring retainer with open ends, the first end having an internal thread and the second end having a retaining edge; A top post is inserted into the spring fixing seat and extends from the second end of the spring fixing seat; the end of the top post has a protruding edge so that it can engage with the retaining edge of the second end; An adjusting stud is threaded to the first end of the spring fixing seat and can be screwed into or out of the spring fixing seat; A spring is disposed within the spring fixing seat and is pressed against the end of the top column by the adjusting screw; The compression of the spring can be adjusted by screwing in or out of the adjusting screw, thereby controlling the pressure.

[0008] In a preferred embodiment, the front end of the top column is provided with a top column head, and the head of the top column head is an arc-shaped surface.

[0009] In a preferred embodiment, the top column head is made of PTFE material.

[0010] In a preferred embodiment, a limiting component is further included, the limiting component being disposed on the side of the horizontal mounting base; The limiting component includes a spherical plunger, and a limiting groove is provided on the side of the horizontal mounting base; the spherical plunger engages with the limiting groove, enabling the horizontal mounting base to maintain its relative position with the guide rail assembly.

[0011] In a preferred embodiment, the guide rail assembly is a ball retainer type LM rolling guide rail, including a track and a slider; the track is disposed on the base plate, and the horizontal spring top post assembly is disposed on the slider.

[0012] In a preferred embodiment, a circular hole is provided in the middle of the lens mount, and a mounting surface for mounting the lens is provided in the circular hole. Several adhesive spherical surfaces for applying glue and positioning are provided at intervals on both sides of the mounting surface. The adhesive spherical surfaces are concentric with the lens. Several of the first spring pins correspond one-to-one with each of the adhesive spherical surfaces in a horizontal position.

[0013] In a preferred embodiment, the mirror mount positioning assembly includes a first positioning seat and a second positioning seat arranged separately in a wedge shape, with an included angle space between the first positioning seat and the second positioning seat for mounting the mirror mount.

[0014] In a preferred embodiment, a second limiting pin is provided on the first positioning seat, and a second limiting slot is provided on one side of the mirror seat to cooperate with the second limiting pin; The second positioning seat is provided with a first limiting pin on one side, and the mirror seat is provided with a first limiting slot that cooperates with the first limiting pin on the other side.

[0015] In a preferred embodiment, a first limiting block is provided on the first positioning seat, and a second limiting block is provided on the second positioning seat; one side surface of the mirror base is provided with a first positioning surface that cooperates with the first limiting block and a second positioning surface that cooperates with the second limiting block; The second positioning seat is further provided with a first connecting surface and a second connecting surface on both sides of the first limiting pin; the mirror seat is provided with a third positioning surface and a fourth positioning surface on both sides of the first limiting slot. The first connecting surface is connected to the third positioning surface by screws, and the second connecting surface is connected to the fourth positioning surface, thereby fixing the mirror mount to the mirror mount positioning assembly.

[0016] This application has the following beneficial effects: During use, install the lens mount onto the lens mount positioning assembly and fix it in place. After applying adhesive to the bonding spherical surface of the lens mount, place the lens in the corresponding position. The horizontal and vertical spring top column assemblies apply uniform and constant force to the lens from all directions to ensure that the lens and lens mount remain in contact during the adhesive curing process, and that the glass beads in the adhesive do not break due to excessive force.

[0017] This system can directly position the lens and the lens mount without manual adjustment. While ensuring the bonding accuracy of precision lenses, it reduces the difficulty of operation, labor costs and operation time, and improves the repeatability accuracy of lens integration. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the high-precision lens positioning integrated system provided in the embodiments of this application in the first position; Figure 2 This is a schematic diagram of the high-precision lens positioning integrated system provided in this application embodiment in the second position; Figure 3 This is a schematic diagram of the mirror mount positioning assembly; Figure 4 This is a schematic diagram of the mirror base; Figure 5 This is a structural schematic diagram of the spring top column assembly; Figure 6 This is a cross-sectional schematic diagram of the limiting component and the horizontal spring top column component when they are in contact. Numbering on the map: 1-Base plate; 2-Guide rail assembly; 21-Rail; 22-Slider; 3-Mirror mount positioning assembly; 31-First positioning seat; 32-Second positioning seat; 33-First limiting block; 34-Second limiting block; 35-First connecting surface; 36-Second connecting surface; 37-First limiting pin; 38-Second limiting pin; 4-Horizontal spring top post assembly; 41-First spring top post; 411-Spring fixing seat; 412-Adjusting stud; 413-Top post; 414-Spring; 415-Top post head; 42-Horizontal mounting seat; 43-Limiting groove; 5-Limit assembly; 51-Ball plunger; 6-Mirror mount; 60-Mounting surface; 61-Bonded spherical surface; 62-First positioning surface; 63-Second positioning surface; 64-Third positioning surface; 65-Fourth positioning surface; 66-First limiting slot; 67-Second limiting slot; 68-Insertion hole; 7-Vertical spring top post assembly; 71-Second spring top post; 72-Vertical mounting base; 8-Lens. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and labeled in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] To reduce operational difficulty and eliminate reliance on technicians' assembly and integration skills for precise positioning, this application proposes a high-precision lens positioning and integration system that provides uniform and constant fixing force during adhesive curing to improve bonding accuracy and repeatability. The system positions and fixes the lens mount and its positioning assembly. After adhesive is applied to the bonding spherical surface of the lens mount, the lens is placed in the corresponding position. A uniform and constant force is applied to the lens from multiple directions via spring-loaded top columns. The magnitude of the force exerted by the spring-loaded top columns ensures that the lens and lens mount remain in contact during adhesive curing, and that the glass beads in the adhesive do not break due to excessive force.

[0028] like Figure 1 and Figure 2 As shown, the high-precision lens positioning integrated system provided in this embodiment includes the following structure: The base plate 1 is used to support other mechanisms; the lens mount positioning assembly 3 is located in the middle of the base plate 1; the lens mount positioning assembly 1 is provided with multiple positioning parts. The lens mount 6 is used to install the lens 8; the lens mount 6 is also provided with multiple positioning parts, which can cooperate with the positioning parts of the lens mount positioning assembly 1, so as to install the lens mount 6 on the lens mount positioning assembly 3 in a specific posture and position.

[0029] Two sets of guide rail assemblies 2 are respectively set on the base plates 1 on both sides of the mirror base positioning assembly 3, and are symmetrical to each other; The horizontal spring-loaded column assembly 4 includes a horizontal mounting base 42 and several first spring-loaded columns 41 for pressing the lens surface of the lens 8. The two horizontal mounting bases 42 are respectively disposed on two sets of guide rail assemblies 2 and can drive the first spring-loaded columns 41 to move along the guide rail assembly 2 towards or away from the lens mount 6. The vertical spring-loaded column assembly 7 includes a vertical mounting base 72 and second spring-loaded columns 71 for pressing the side edge of the lens 8. The vertical mounting base 72 has a door-shaped structure, is mounted on the base plate 1 and spans across the lens mount positioning assembly 3. The second spring-loaded columns 71 are disposed in the middle of the upper beam of the vertical mounting base 72 and can pass through the pre-reserved insertion hole 68 on the lens mount 6 to contact the side edge of the lens 8.

[0030] The guide rail assembly 2 adopts a ball retainer type LM rolling guide rail, including a rail 21 and a slider 22; the rail 21 is set on the base plate 1, and the horizontal spring top column assembly 4 is set on the slider 22.

[0031] Ball retainer type LM rolling guide is a high-performance linear motion component with advantages such as equal load in 4 directions, self-aligning capability, low noise and low dust generation, long-term maintenance-free operation, excellent high speed, high rigidity and low center of gravity.

[0032] The structures of the mirror mount positioning assembly 3 and the mirror mount 6 are as follows: Figure 3 and Figure 4 As shown. The mirror mount positioning assembly 3 includes a first positioning seat 31 and a second positioning seat 32 arranged separately in a wedge shape, forming a right-angle space between the first positioning seat 31 and the second positioning seat 32 for mounting the mirror mount 6.

[0033] A circular hole is provided in the middle of the lens mount 6, and a mounting surface 60 for mounting the lens 8 is provided in the circular hole. Four adhesive spherical surfaces 61 for applying adhesive are provided at intervals on both sides of the mounting surface 60.

[0034] Two second limiting pins 38 are provided on the first positioning seat 31, and a second limiting slot 67 that cooperates with the second limiting pins 38 is provided on one side of the mirror seat 6; two first limiting pins 37 are provided on the side of the second positioning seat 32, and a first limiting slot 66 that cooperates with the first limiting pins 37 is provided on the other side of the mirror seat 6.

[0035] In addition, a first limiting block 33 is provided on the first positioning seat 31, and a second limiting block 34 is provided on the second positioning seat 32; a first positioning surface 62 that cooperates with the first limiting block 33 and a second positioning surface 63 that cooperates with the second limiting block 34 are provided on one side surface of the mirror seat 6. The first limiting pin 37 of the second positioning seat 32 is provided with a first connecting surface 35 and a second connecting surface 36 on both sides respectively; the first limiting slot 66 of the mirror seat 6 is provided with a third positioning surface 64 and a fourth positioning surface 65 on both sides respectively; the first connecting surface 35 is connected to the third positioning surface 64 and the second connecting surface 36 is connected to the fourth positioning surface 65 by screws, thereby fixing the mirror seat 6 to the mirror seat positioning assembly 3.

[0036] The mirror mount positioning assembly 3 constrains the six degrees of freedom of the mirror mount 6 through multiple positioning and limiting structures, ensuring the positioning accuracy between the mirror mount 6 and the lens 8.

[0037] The first spring top post 41 and the second spring top post 71 have the same structure. Taking the first spring top post 41 as an example, as follows... Figure 5 As shown, it includes: A cylindrical spring retainer 411 is open at both ends, with an internal thread at the first end and a retaining edge at the second end; a top post 413 is inserted into the spring retainer 411 and extends out from the second end of the spring retainer 411; the end of the top post 413 has a protruding edge, which allows it to engage with the retaining edge at the second end of the spring retainer 411; an adjusting stud 412 is threaded to the first end of the spring retainer 411 and can be screwed in or out from the first end of the spring retainer 411; a spring 414 is disposed inside the spring retainer 411 and is pressed against the end of the top post 413 by the adjusting stud 412.

[0038] The top post 413 has a top post head 415 at its front end. The top post head 415 has an arc-shaped head and is made of PTFE (polytetrafluoroethylene) material, which can reduce damage to the lens surface.

[0039] The number of first spring top posts 41 is the same as that of the adhesive spherical surfaces 61, and they correspond one-to-one with each adhesive spherical surface 61 in the horizontal position. This allows the first spring top posts 41 to press down on the adhesive application position of the lens 8, preventing the lens 8 from deforming due to uneven force during the bonding process.

[0040] The compression of the spring 414 is controlled by changing the screw length of the adjusting stud 412, thereby controlling the magnitude of the force applied by the top post 413. The first spring top post 41 provides a horizontal force to the lens 8, and the second spring top post 71 provides a vertical force to the lens 8.

[0041] A limiting component 5 is also provided on the base plate 1, and the limiting component 5 is located on the side of the horizontal mounting base 42. The limiting component 5 includes a spherical plunger 51, and a V-shaped limiting groove 43 is provided on the side of the horizontal mounting base 42; when the horizontal mounting base 42 moves into position, the spherical plunger 51 can engage with the limiting groove 43, thereby enabling the horizontal mounting base 42 to maintain its relative position with the guide rail assembly 2, which can ensure that the lens 8 and the lens base 6 remain in a close fit during the adhesive curing process, and that the glass beads in the adhesive will not break due to excessive force.

[0042] In use, after applying the glue mixed with glass beads to the lens mount 6, position and attach the lens mount 6 to the lens mount positioning assembly 3, and fix the lens mount 6 to the lens mount positioning assembly 3 with screws. Then, fix the lens mount positioning assembly 3 to the base plate 1. Push the horizontal spring top post assembly 4 away from the lens mount 6, and then place the lens 8 inside the lens mount 6. The spherical surface of the lens mount 6 constrains the Z, Rx, and Ry degrees of freedom of the lens 8, while the two vertical first limiting pins 37 and second limiting pins 38 on the lens mount positioning assembly 3 constrain the X and Y degrees of freedom of the lens 8. At this time, the relative position of the lens 8 and the lens mount 6 is fixed. After the lens 8 is placed, push the horizontal spring top post assembly 4 towards the lens 8. The limiting assembly 5 limits the horizontal spring top post assembly 4, controlling the magnitude of the force to make the lens 8 fit with the lens mount 6. Finally, the vertical spring top post assembly 7 provides vertical force to the lens 8, and the lens 8 will not undergo X and Y displacement during the glue curing process.

[0043] In this embodiment, the lens mount positioning component 3 positions and constrains the lens mount 6, and the lens mount 6 positions and constrains the lens 8. The adhesive contains glass beads of a constant size, and the adhesive layer thickness is fixed, which ensures the positioning accuracy between the lens 8 and the lens mount 6. Manual positioning is not required, which improves the efficiency of lens bonding and integration and reduces the difficulty of operation.

[0044] The first spring top post ensures the direction and uniformity of the lens fixing force during the curing process of the adhesive for lens 8, ensuring that lens 8 and lens mount 6 remain in contact during the curing process, thereby improving the reliability of lens bonding and reducing labor costs.

[0045] The spherical plunger 51 and the limiting groove 43 limit each other, avoiding complex positioning, eliminating the disassembly process, reducing operation steps, and saving operation time.

[0046] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-precision lens positioning integrated system, characterized in that, include: The base plate is used to support other mechanisms; The mirror mount positioning assembly is located in the middle of the base plate; The mirror mount positioning assembly is provided with multiple positioning parts; A lens mount for mounting a lens; the lens mount cooperates with the positioning part and is mounted on the lens mount positioning assembly; Two sets of guide rail assemblies are respectively set on the base plates on both sides of the mirror mount positioning assembly; A horizontal spring-loaded column assembly includes a horizontal mounting base and a plurality of first spring-loaded columns for pressing the lens surface; two of the horizontal mounting bases are respectively disposed on two sets of guide rail assemblies and are capable of driving the first spring-loaded columns to move along the guide rail assemblies toward or away from the lens mount; A vertical spring-loaded column assembly includes a vertical mounting base and a second spring-loaded column for pressing the lens edge; the vertical mounting base has a gate-shaped structure and spans across the lens mount positioning assembly; the second spring-loaded column is located in the middle of the upper beam of the vertical mounting base and can pass through the reserved gap of the lens mount to contact the lens edge.

2. The high-precision lens positioning integrated system according to claim 1, characterized in that, The first spring top post and the second spring top post have the same structure, both including: A cylindrical spring retainer with open ends, the first end having an internal thread and the second end having a retaining edge; A top post is inserted into the spring fixing seat and extends from the second end of the spring fixing seat; the end of the top post has a protruding edge so that it can engage with the retaining edge of the second end; An adjusting stud is threaded to the first end of the spring fixing seat and can be screwed into or out of the spring fixing seat; A spring is disposed within the spring fixing seat and is pressed against the end of the top column by the adjusting screw; The compression of the spring can be adjusted by screwing in or out of the adjusting screw, thereby controlling the pressure.

3. The high-precision lens positioning integrated system according to claim 2, characterized in that, The top column has a top column head at its front end, and the top column head has an arc-shaped surface.

4. The high-precision lens positioning integrated system according to claim 3, characterized in that, The top column head is made of PTFE material.

5. The high-precision lens positioning integrated system according to claim 1, characterized in that, It also includes a limiting component, which is disposed on the side of the horizontal mounting base; The limiting component includes a spherical plunger, and a limiting groove is provided on the side of the horizontal mounting base; the spherical plunger engages with the limiting groove, enabling the horizontal mounting base to maintain its relative position with the guide rail assembly.

6. The high-precision lens positioning integrated system according to claim 1, characterized in that, The guide rail assembly adopts a ball retainer type LM rolling guide rail, including a track and a slider; the track is set on the base plate, and the horizontal spring top column assembly is set on the slider.

7. The high-precision lens positioning integrated system according to claim 1, characterized in that, The lens mount has a circular hole in the middle and a mounting surface for mounting the lens is provided in the circular hole. Several adhesive spherical surfaces for applying glue and positioning are provided at intervals on both sides of the mounting surface. The adhesive spherical surfaces are concentric with the lens. Several of the first spring pins correspond one-to-one with each of the adhesive spherical surfaces in a horizontal position.

8. The high-precision lens positioning integrated system according to claim 1, characterized in that, The mirror mount positioning assembly includes a first positioning seat and a second positioning seat arranged separately in a wedge shape, with an included angle space between the first positioning seat and the second positioning seat for mounting the mirror mount.

9. The high-precision lens positioning integrated system according to claim 8, characterized in that, The first positioning seat is provided with a second limiting pin, and one side of the mirror seat is provided with a second limiting slot that cooperates with the second limiting pin; The second positioning seat is provided with a first limiting pin on one side, and the mirror seat is provided with a first limiting slot that cooperates with the first limiting pin on the other side.

10. The high-precision lens positioning integrated system according to claim 9, characterized in that, A first limiting block is provided on the first positioning seat, and a second limiting block is provided on the second positioning seat; a first positioning surface that cooperates with the first limiting block and a second positioning surface that cooperates with the second limiting block are provided on one side surface of the mirror base; The second positioning seat is further provided with a first connecting surface and a second connecting surface on both sides of the first limiting pin; the mirror seat is provided with a third positioning surface and a fourth positioning surface on both sides of the first limiting slot. The first connecting surface is connected to the third positioning surface by screws, and the second connecting surface is connected to the fourth positioning surface, thereby fixing the mirror mount to the mirror mount positioning assembly.

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