A lens holding device based on flexible connection

Abstract

This invention relates to the field of optical instrument technology, specifically disclosing a lens clamping device based on flexible connections. It includes a support frame with a hollow cavity for mounting lenses, multiple sets of elastic radial positioning components mounted on the support frame for radially fixing the lenses, elastic axial positioning components mounted on the elastic radial positioning components, and a base for mounting the support frame. The elastic radial positioning components are located on the outer side of the lenses, and the inner surfaces of the multiple sets of elastic radial positioning components initially form chambers coaxial with the hollow cavity. The bottom surface of the elastic axial positioning components cooperates with the upper surface of the support frame to axially position the lenses. This invention effectively achieves axial and radial positioning of lenses with high positioning accuracy, effectively solving the problem of changes in optical lens angle and surface shape caused by the coefficient of linear expansion between different materials; subsequent maintenance is simple and convenient.

Description

Technical Field

[0001] This invention relates to the field of optical instrument technology, and more specifically, to a lens clamping device based on a flexible connection. Background Technology

[0002] Laser weapons are highly complex high-tech weapons involving numerous advanced technologies. They have become a crucial means for strategic counterbalancing among major powers and for changing the nature of warfare, with tactical-level high-energy laser weapons rapidly entering the stage of practical application. High-energy laser weapons utilize the thermal, photoelectric, and thermo-coupling effects of high-power lasers to directly disable or even destroy targets, offering advantages such as rapid response, precise strikes, low ammunition costs, simple battlefield support, and stealthy operation. They can play a unique role in modern localized combat scenarios such as key point defense, missile interception, satellite warfare, and swarm warfare, gradually becoming one of the main weapons adaptable to future informationized high-tech warfare.

[0003] As the power of laser weapons continues to increase, the ability to effectively focus high-energy laser beams onto combat targets is crucial for success. Multiple optical lenses within the laser beam path transmit the beam. To address the issues of varying lens angles and surface shapes caused by the different coefficients of linear expansion of materials, current technology often employs adhesive dispensing between the lens and the frame. This addresses the surface shape variations caused by the different coefficients of linear expansion of the lens and the frame components. However, this approach, based on dispensing experience, cannot achieve uniform adhesive coverage, has a long curing time, and is inconvenient for later maintenance and replacement. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a lens clamping device based on flexible connection, which can effectively achieve axial and radial positioning of the lens with high positioning accuracy, effectively solve the problem of changes in the angle and surface shape of optical lenses caused by the coefficient of linear expansion between different materials; and the subsequent maintenance is simple and convenient.

[0005] The solution adopted by this invention to solve the technical problem is:

[0006] A lens clamping device based on flexible connection is used to clamp and fix a lens; it includes a support frame with a hollow cavity for mounting the lens, multiple sets of elastic radial positioning components mounted on the support frame for radial fixing of the lens, elastic axial positioning components mounted on the elastic radial positioning components, and a base for mounting the support frame.

[0007] The elastic radial positioning component is located on the outside of the lens, and the inner surfaces of multiple sets of elastic radial positioning components will form a cavity coaxial with the hollow cavity in the initial state.

[0008] The bottom surface of the elastic axial positioning component cooperates with the upper surface of the supporting frame to perform axial positioning of the lens.

[0009] Assembly is performed at a room temperature of 20°C.

[0010] First, the elastic radial positioning component is installed. Because the elastic radial positioning component is elastic, by moving the elastic radial positioning component away from the hollow cavity, the cavity formed by the inner side of the elastic radial positioning component is enlarged, which makes it easier to install the lens on the support frame and in the cavity formed by the inner sides of multiple elastic radial positioning components.

[0011] Subsequently, no force is applied to the elastic radial positioning components. All the elastic radial positioning components will return to their initial state under the action of elastic force and apply a preload to the outer surface of the lens, thereby achieving the positioning of the lens in its radial direction.

[0012] Then, the elastic axial positioning component is installed, and after the elastic axial positioning component is installed, a force is applied to the upper surface of the lens to achieve radial positioning of the lens, and the lens assembly is completed. Compared with the existing technology, which uses the cooperation of elastic axial positioning component and elastic radial positioning component to achieve axial and radial positioning of the lens, the positioning accuracy is high.

[0013] In some possible implementations, in order to effectively achieve radial positioning of the lens and make the lens more evenly stressed;

[0014] The elastic radial positioning components are uniformly arranged along the circumference of the lens, and the elastic axial positioning components are arranged in a one-to-one correspondence with the elastic radial positioning components.

[0015] In some possible implementations, in order to enable the elastic radial positioning component to have good elastic potential energy, a preload force can be applied to the lens after assembly to ensure its positioning accuracy.

[0016] The elastic radial positioning assembly includes a spring assembly mounted on the support frame and a radial positioning block mounted on the spring.

[0017] In some possible implementations,

[0018] The spring assembly includes a spring for mounting a radial positioning block and a fixing shaft connected to both ends of the spring and used to mount the elastic body on the support frame; the spring has an arc-shaped structure, with its open side located on the side away from the lens.

[0019] In some possible implementations,

[0020] The radial positioning block is arc-shaped on the side closest to the lens, and its radius is the same as that of the lens.

[0021] In some possible implementations, in order to enable the elastic axial positioning component to have good elastic potential energy, it is possible to apply an axial preload to the lens after assembly, so that the lens is positioned more accurately in the axial direction.

[0022] The elastic axial positioning assembly includes an axial positioning frame mounted on the elastic radial positioning assembly and located above the lens on the side close to the lens, and a flexible pad mounted on the axial positioning frame and cooperating with the support frame to achieve axial positioning of the lens.

[0023] In some possible implementations,

[0024] The axial positioning frame includes a fixing member mounted above the elastic radial positioning component, a gasket fixing block located above the lens, and a thin sheet that is elastic and used to connect the fixing member and the flexible gasket; the fixing member, the thin sheet, and the gasket fixing block are integrally formed.

[0025] In some possible implementations, in order to effectively reduce the problems of angle deflection and stress concentration after lens assembly;

[0026] The supporting frame includes a frame body with a hollow structure for mounting lenses and a base for mounting the frame body. The frame body is provided with threaded holes for connecting the base and the frame body, and a spiral groove is provided on the outer side of the threaded hole along the axial direction of the threaded hole.

[0027] In some possible implementations,

[0028] The frame is provided with a positioning support boss that corresponds to the elastic axial positioning component.

[0029] In some possible implementations,

[0030] The base is made of aluminum alloy, with a coefficient of linear expansion of 23-25*10. -6 The supporting frame is made of titanium alloy with a linear expansion coefficient of 8-10*10 m / ℃. -6 The lens is supported by fused silica material at a temperature of m / ℃, and its coefficient of linear expansion is 0-1*10. -6 m / ℃.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] This invention effectively achieves the positioning of the lens in the axial and radial directions through the cooperation of the elastic axial positioning component and the elastic radial positioning component;

[0033] This invention effectively shapes the surface of the high-intensity lens and reduces link wave aberration by using flexible pads and positioning support bosses.

[0034] The present invention can effectively overcome stress concentration and angle changes between different linear expansion materials by combining the elastic axial positioning component, the elastic radial positioning component, and the spiral groove.

[0035] Compared with the prior art, the present invention does not use adhesive to fix the lens, which prevents lens contamination and facilitates lens replacement and maintenance.

[0036] This invention has a simple structure, is easy to install and disassemble, and is highly practical. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of the present invention;

[0038] Figure 2 This is a schematic diagram showing the connection of the eyeglass frame support, the elastic axial positioning component, and the elastic radial positioning component in this invention.

[0039] Figure 3 This is a schematic diagram of the structure supporting the eyeglass frame in this invention;

[0040] Figure 4 In this invention Figure 3 Enlarged view of point A in the middle;

[0041] Figure 5 This is a schematic diagram of the structure of the elastic radial component in this invention;

[0042] Figure 6 This is a schematic diagram of the structure of the elastic axial positioning component in this invention;

[0043] The components are: 1. Support frame; 11. Hollow cavity; 12. Frame body; 13. Base; 131. Spiral groove; 14. Support boss; 2. Elastic radial positioning component; 21. Spring piece component; 22. Radial positioning block; 3. Elastic axial positioning component; 31. Fixing component; 32. Gasket fixing block; 33. Thin sheet; 34. Flexible gasket; 4. Base; 10. Lens. Detailed Implementation

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more. For example, multiple positioning posts refer to two or more positioning posts. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] The present invention will now be described in detail.

[0046] like Figures 1-6 As shown:

[0047] A lens 10 clamping device based on flexible connection is used to clamp and fix the lens 10; it includes a support frame 1 with a hollow cavity 11 for mounting the lens 10, multiple sets of elastic radial positioning components 2 mounted on the support frame 1 for radially fixing the lens 10, elastic axial positioning components 3 mounted on the elastic radial positioning components, and a base 4 for mounting the support frame 1.

[0048] The elastic radial positioning component 2 is located on the outside of the lens 10, and the inner surfaces of multiple sets of elastic radial positioning components will form a cavity coaxial with the hollow cavity 11 in the initial state.

[0049] The bottom surface of the elastic axial positioning component 3 cooperates with the upper surface of the support frame 1 to axially position the lens 10.

[0050] The base 4 is made of aluminum alloy, with a coefficient of linear expansion of 23-25*10. -6 The supporting frame 1 is made of titanium alloy with a linear expansion coefficient of 8-10*10 m / ℃. -6 The lens 10 is supported by fused silica material at a temperature of m / ℃, and its coefficient of linear expansion is 0-1*10. -6 m / ℃.

[0051] Assembly is performed at a room temperature of 20°C.

[0052] First, install the support frame 1 on the base 13;

[0053] Next, the elastic radial positioning component 2 is installed. Because the elastic radial positioning component 2 is elastic, by moving it away from the hollow cavity 11, multiple sets of elastic radial positioning components are positioned...

[0054] The cavity formed on the inner side of the positioning component 2 becomes larger, which facilitates the mounting of the lens 10 on the support frame 15 and the cavity formed on the inner side of the multiple elastic radial positioning components 2.

[0055] Subsequently, no force is applied to the elastic radial positioning component 2. All the elastic radial positioning components 2 will return to their initial state under the action of elastic force and apply a pre-tightening force to the outer surface of the lens 10, thereby achieving the positioning of the lens 10 in its radial direction.

[0056] Then, the elastic axial positioning component 3 is installed, and after the elastic axial positioning component 3 is installed, a force is applied to the upper surface of the lens 10 to achieve radial positioning of the lens 10.

[0057] Lens 10 is assembled; compared with the existing technology, it adopts a flexible axial positioning component 3 and a flexible...

[0058] The radial positioning component 2, when used in conjunction, enables the lens 10 to be positioned axially and radially with high accuracy. In some possible embodiments, to effectively achieve radial positioning of the lens 10,

[0059] This allows the lens 10 to be subjected to more even force;

[0060] Preferably, the lens 10 is disc-shaped;

[0061] The elastic radial positioning component 2 is uniformly arranged along the circumference of the lens 10, and the elastic axial positioning component 3 is arranged in a one-to-one correspondence with the elastic radial positioning component 2.

[0062] 0 In some possible implementations, in order to make the elastic radial positioning component 2 have good elasticity

[0063] The potential energy can apply a pre-tightening force to the lens 10 after assembly to ensure its positioning accuracy;

[0064] The elastic radial positioning component 2 includes a spring assembly 21 mounted on the support frame 1 and a radial positioning block 22 mounted on the spring.

[0065] Preferred, such as Figure 1As shown, the elastic radial positioning component 2 consists of four groups, which are evenly arranged along the axial direction of the lens 10, so that the side of the lens 10 is subjected to uniform force and the lens 10 is positioned radially.

[0066] There are also four sets of elastic axial positioning components 3, which are arranged one-to-one with the elastic radial positioning components 2. Each set of elastic axial positioning components 3 is installed above the elastic radial positioning components 2. By cooperating with the upper surface of the support frame 1, a pre-tightening force is applied to the lens 10 along its axial direction to achieve axial positioning.

[0067] In some possible implementations,

[0068] The spring assembly 21 includes a spring for mounting the radial positioning block 22 and having elasticity, and a fixing shaft connected to both ends of the spring and for mounting the elastic body on the support frame 1; the spring has an arc-shaped structure, with its open side located on the side away from the lens 10.

[0069] like Figure 1 , Figure 5 As shown, the spring is mounted on the support frame 1 via a fixed shaft. Under the action of external force, it will undergo elastic deformation. It is set as an arc-shaped structure with the opening located on the side away from the lens 10. This is so that the spring will deform under the action of external force and return to its initial state after the external force is removed, and move towards the side closer to the lens 10. This allows the radial positioning block 22 mounted on the spring to apply force to the lens 10. The radial positioning of the lens 10 is achieved through the cooperation of multiple sets of radial positioning blocks 22.

[0070] In some possible implementations,

[0071] The radial positioning block 22 is arc-shaped on the side near the lens 10, and its radius is the same as that of the lens 10.

[0072] Setting the side of the radial positioning block 22 closest to the lens 10 into an arc shape will make the contact surface between the radial positioning block 22 and the outer side of the lens 10 larger, resulting in more stable positioning.

[0073] In some possible implementations, in order to enable the elastic axial positioning component 3 to have good elastic potential energy, it is possible to apply an axial preload to the lens 10 after assembly, so that the lens 10 is positioned more accurately in the axial direction.

[0074] The elastic axial positioning component 3 includes an axial positioning frame mounted on the elastic radial positioning component and located above the lens 10 on the side close to the lens 10, and a flexible pad 34 mounted on the axial positioning frame and cooperating with the support frame 1 to achieve axial positioning of the lens 10.

[0075] Furthermore, both the axial positioning frame and the elastic radial positioning component 2 are made of elastic steel, thus possessing good elasticity.

[0076] In some possible implementations, in order to make the axial positioning frame elastic, it is able to apply an axial preload to the lens 10;

[0077] The axial positioning frame includes a fixing member 31 mounted above the elastic radial positioning component 2, a gasket fixing block 32 located above the lens 10, and a thin sheet 33 that is elastic and used to connect the fixing member 31 and the flexible gasket 34; the fixing member 31, the thin sheet 33, and the gasket fixing block 32 are integrally formed.

[0078] Furthermore, the bottom of the gasket fixing block 32 is provided with an installation groove, and the flexible gasket 34 is installed in the installation groove. The bottom of the flexible gasket 34 will pass through the installation groove and be located outside the installation groove. This effectively avoids the gasket fixing block 32 from contacting the surface of the lens 10 after assembly, thus preventing damage to the lens 10.

[0079] Preferably, the flexible gasket 34 is bonded to the gasket fixing block 32 within the mounting groove. The gasket fixing block 32 has a grouting hole communicating with the mounting groove, and the flexible gasket 34 has a glue storage hole communicating with the grouting hole on the side near the bottom of the mounting groove. During bonding, the adhesive enters the glue storage hole through the grouting hole to bond the gasket fixing block 32 and the flexible gasket 34 into a whole. Using this bonding method, the adhesive will not contaminate the lens 10, and thus will not cause contamination of the optical path during use.

[0080] The thin sheet 33 is placed between the fastener 31 and the gasket fixing block 32. After assembly, under the action of the thin sheet 33, the gasket fixing block 32 will apply a pre-tightening force to the lens 10, thereby achieving axial positioning of the lens 10.

[0081] The fastener 31 is installed above the radial positioning block 22 by bolts; this allows for the replacement of different elastic radial positioning components according to the thickness of the lens 10 before use to achieve axial positioning of the lens 10 with different thicknesses.

[0082] Furthermore, the flexible gasket 34 is made of polytetrafluoroethylene (PTFE).

[0083] In some possible implementations, in order to effectively reduce the problems of angle deflection and stress concentration after the lens 10 is assembled;

[0084] The supporting frame 1 includes a frame 12 with a hollow structure for mounting lenses 10 and a base 13 for mounting the frame 12. The frame 12 is provided with a threaded hole for connecting the base 13 and the frame 12. A spiral groove 131 is provided on the outside of the threaded hole along the axial direction of the threaded hole.

[0085] like Figure 6 As shown, the spiral groove 131 will run through the entire base 13 along the axial direction of the threaded hole. It can be processed by wire cutting in the prior art. The spiral groove 131 will make the part connected to the bolt and with the threaded hole elastic, which can effectively solve the problems of angle deflection and stress concentration.

[0086] In some possible implementations,

[0087] The frame 12 is provided with a positioning support boss 14 corresponding to the elastic axial positioning component 3.

[0088] The positioning support boss 14 will greatly reduce the contact area between the lens 10 and the support frame 1, thus avoiding damage to the surface of the lens 10.

[0089] The present invention optimizes the surface shape of the high-intensity lens 10 by setting up the flexible pad 34 and the positioning support boss 14, thereby reducing link wave aberration;

[0090] The present invention can effectively overcome stress concentration and angle changes between different linear expansion materials by using the cooperation of the elastic axial positioning component 3, the elastic radial positioning component 2, and the spiral groove 131.

[0091] Compared with the prior art, the present invention does not use adhesive to fix the lens 10, so as not to contaminate the lens 10 and to facilitate the replacement and maintenance of the lens 10.

[0092] This invention is not limited to the specific embodiments described above. The invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A lens holding device based on flexible connection for holding and fixing a lens; characterized in that, The support frame provided with a hollow cavity and used for mounting the lens, a plurality of sets of elastic radial positioning assemblies mounted on the support frame and used for radially fixing the lens, an elastic axial positioning assembly mounted on the elastic radial positioning assembly, and a base used for mounting the support frame; The elastic radial positioning assemblies are located at the outer side of the lens, and the inner side surfaces of the plurality of sets of elastic radial positioning assemblies form a cavity coaxial with the hollow cavity in the initial state; The bottom surface of the elastic axial positioning assembly cooperates with the upper surface of the support frame to axially position the lens; The elastic radial positioning assembly comprises a spring assembly mounted on the support frame and a radial positioning block mounted on the spring; The spring assembly comprises a spring used for mounting the radial positioning block and a fixing shaft connected with both ends of the spring and used for fixing the elastic body on the support frame; the spring has an arc structure, and the opening side is located away from the lens; The side close to the lens of the radial positioning block has a circular arc structure, and the radius is consistent with that of the lens; The elastic axial positioning assembly comprises an axial positioning frame mounted on the elastic radial positioning assembly and located above the lens at the side close to the lens, and a flexible gasket mounted on the axial positioning frame and cooperating with the support frame to axially position the lens; The axial positioning frame comprises a fixing member mounted above the elastic radial positioning assembly, a gasket fixing block located above the lens, and a thin sheet used for connecting the fixing member and the flexible gasket and having elasticity; the fixing member, the thin sheet, and the gasket fixing block are integrally formed; the fixing member is mounted above the radial positioning block The support frame comprises a frame body provided with a hollow structure and used for mounting the lens, and a base used for mounting the frame body; the frame body is provided with a threaded hole used for connecting the base and the frame body, and a spiral groove is arranged on the outer side of the threaded hole along the axial direction of the threaded hole.

2. A flexible connection based lens holding device according to claim 1, wherein, The elastic radial positioning assemblies are uniformly arranged along the circumference of the lens, and the elastic axial positioning assemblies are one-to-one corresponding to the elastic radial positioning assemblies.

3. The flexible connection based lens holding device of claim 1, wherein, The frame body is provided with a positioning support boss corresponding to the elastic axial positioning assembly.

4. The flexible connection based lens holding device of claim 1, wherein, The base is made of aluminum alloy material, its linear expansion coefficient is 23-25*10 -6 m / ℃, the support frame is made of titanium alloy material, its linear expansion coefficient is 8-10*10 -6 m / ℃, the lens is supported by fused quartz material, its linear expansion coefficient is 0-1*10 - 6 m / ℃.

Images