A large aperture optical telescope mirror coating machine device

Abstract

The utility model relates to optical lens technical field, concretely to a kind of large aperture optical telescope mirror coating machine device, including coating machine main body, clamping assembly and steering assembly, coating chamber is equipped in coating machine main body inside, clamping assembly is connected on coating machine main body, clamping assembly includes fixed base, rotating plate, sliding part, clamping rod and auxiliary assembly. In the utility model, multiple clamping rods can be made to synchronous action by the rotation of rotating plate, clamping rod is synchronously moved to the direction of center of circle to clamp and fix lens, different sizes of lens can be clamped, and the auxiliary assembly set can further increase the contact point with lens when clamping rod clamps, to reduce the local stress of lens when clamping, prevent lens from being damaged by clamping.

Description

Technical Field

[0001] This utility model relates to the field of optical lens technology, specifically to a large-aperture optical telescope mirror coating machine device. Background Technology

[0002] Modern optical lenses are typically coated with single or multiple layers of magnesium fluoride antireflective coating. A single-layer antireflective coating can reduce reflection to 1.5%, while a multi-layer antireflective coating can reduce reflection to 0.25%. Therefore, if the entire scope is properly coated, the light transmittance can reach 95%. In the production of optical lenses, coating machines are used to coat the lenses.

[0003] Chinese Patent Publication No. CN113278943A discloses a high-uniformity vacuum coating machine for large-diameter, high-curvature optical lenses. The machine includes a coating body with a vacuum chamber. Several clamping mechanisms are arrayed on both sides of the vacuum chamber. Each clamping mechanism includes a support rod and a scissor plate hinged to the outer end of the support rod. The two scissor plates combine to form a space for clamping the lens. The side of the scissor plate away from the lens is connected to the outer wall of the support rod via an elastic rope. The non-scissor plate end of the support rod extends through the body of the coating machine and is connected to a motor that drives its rotation. Support rods on the same side are connected by a transmission chain for rotation. This vacuum coating machine can process a large number of lenses simultaneously, uniformly coating both the front and back sides of the lenses without obstructing the clamping edges. It offers high coating quality and comprehensive coverage, and is suitable for fixed coating of lenses of different sizes, making it highly efficient and practical.

[0004] In the above solution, the lens is clamped and fixed only by the clamping structure formed by two scissor plates. However, the contact surface with the lens is small and the contact position with the lens is small, resulting in large local stress on the lens. As the lens diameter gradually increases, the risk of lens damage will increase. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a large-aperture optical telescope mirror coating machine device.

[0006] The technical solution of this utility model is as follows: A coating machine device for large-aperture optical telescopes includes a coating machine body with a coating chamber inside; a clamping assembly connected to the coating machine body, the clamping assembly including a fixed base, a rotating plate, sliding members, a clamping rod, and auxiliary components. The fixed base has a receiving cavity, the rotating plate is rotatably connected to the receiving cavity, the rotating plate has multiple guide grooves, the number of sliding members corresponds to the number of guide grooves, one end of the sliding rod is slidably connected to the guide groove, and the other end of the sliding member passes through a limiting groove on the fixed base and connects to the clamping rod. The clamping rod contacts the lens. The auxiliary components are connected to the clamping assembly. The clamping assembly includes an auxiliary rod, a threaded rod, a movable sleeve, a rotating rod, and a connecting rod. Two auxiliary rods are symmetrically arranged on both sides of the clamping rod, with the auxiliary rods parallel to the clamping rod. The threaded rod is horizontally oriented, and the movable sleeve is connected to the threaded rod. The two ends of the symmetrically arranged rotating rods are connected to the movable sleeve and the clamping rod, respectively. One end of the connecting rod rotates with the rotating rod. In the use state of the clamping assembly, the rotating plate rotates, causing the sliding component and the clamping rod to move along the limiting groove within the sliding groove to adapt to optical lenses of different sizes. The threaded sleeve moves along the threaded rod, causing the angles of the rotating rod and the connecting rod to change. The auxiliary rod moves closer to the lens to increase the contact points.

[0007] The steering assembly is connected to the main body of the coating machine; when the steering assembly is in use, the rotating end of the steering assembly drives the clamping assembly to change angle.

[0008] Preferably, the fixing base consists of a fixing plate and a connecting plate. The fixing plate is connected to the connecting plate. A receiving groove is opened on the side of the fixing plate near the connecting plate, and a limiting groove is opened on the connecting plate.

[0009] Preferably, the sliding component consists of a sliding rod, a sliding block, and a support plate. One end of the sliding rod is slidably connected in a limiting groove, the sliding block is slidably connected in a limiting groove, the sliding block is connected to one end of the sliding rod, the support plate is connected to the sliding block, and one end of the support plate is connected to the clamping rod.

[0010] Preferably, both sides of the sliding block are connected to protrusions, and the protrusions are slidably connected to the auxiliary grooves opened on the side walls of the limiting groove.

[0011] Preferably, the auxiliary component further includes a fixing block connected to the sliding block, the fixing block being rotatably connected to one end of the connecting rod and the threaded rod; and an adjusting handle connected to one end of the threaded rod.

[0012] Preferably, the rotating assembly includes a drive device connected to the coating machine body; a support shaft, one end of which is connected to a fixed plate and the other end of which is connected to the output end of the drive device; and a mating rod, one end of which is rotatably connected to the coating machine body and the other end of which is connected to the fixed plate.

[0013] Preferably, the clamping assembly further includes a telescopic device, one end of which is rotatably connected to the support shaft; and a push rod, one end of which passes through a notch in the fixed plate and is connected to the rotating plate, and the other end of the push rod is connected to the telescopic end of the telescopic device.

[0014] Preferably, both the clamping rod and the auxiliary rod are equipped with protective sleeves.

[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0016] In this invention, the rotation of the rotating plate enables multiple clamping rods to move synchronously. The clamping rods move synchronously towards the center to clamp and fix the lens. Lenses of different sizes can be clamped. The auxiliary components further increase the contact points with the lens when the clamping rods are clamping, thereby reducing the local stress on the lens during clamping and preventing damage to the lens caused by clamping. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 for Figure 1 A cross-sectional view;

[0019] Figure 3 for Figure 2 Enlarged view of the structure at point A;

[0020] Figure 4 This is a schematic diagram showing the usage status of the clamping component;

[0021] Figure 5 This is a schematic diagram of the explosion of the fixed base.

[0022] Reference numerals in the attached drawings: 1. Coating machine body; 2. Fixed base; 3. Rotating plate; 4. Sliding component; 5. Clamping rod; 6. Guide groove; 7. Limiting groove; 8. Auxiliary rod; 9. Threaded rod; 10. Moving sleeve; 11. Rotating rod; 12. Connecting rod; 13. Fixed plate; 14. Connecting plate; 15. Sliding rod; 16. Sliding block; 17. Support plate; 18. Protrusion; 19. Auxiliary groove; 20. Fixed block; 21. Adjusting handle; 22. Drive device; 23. Support shaft; 24. Matching rod; 25. Telescopic device; 26. Push rod. Detailed Implementation

[0023] Example 1

[0024] like Figures 1-5As shown, this utility model proposes a large-aperture optical telescope mirror coating machine device, including a coating machine body 1, a clamping assembly, and a steering assembly. The coating machine body 1 has a coating chamber inside, and the lens is placed in the coating chamber. The clamping assembly is connected to the coating machine body 1 and includes a fixed base 2, a rotating plate 3, a sliding member 4, a clamping rod 5, and an auxiliary assembly. The fixed base 2 has a receiving cavity, and the rotating plate 3 is rotatably connected to the receiving cavity. The rotating plate 3 has multiple guide grooves 6, and the number of sliding members 4 corresponds to the number of guide grooves 6. One end of the sliding rod 15 is slidably connected to the guide groove 6, and the other end of the sliding member 4 passes through a limiting groove 7 on the fixed base 2 and connects to the clamping rod 5. The clamping rod 5 contacts the lens. The auxiliary assembly is connected to the clamping rod 5. The auxiliary assembly includes an auxiliary rod 8 and a threaded rod 9. The clamping assembly consists of a movable sleeve 10, a rotating rod 11, and a connecting rod 12. Two auxiliary rods 8 are symmetrically arranged on both sides of the clamping rod 5, with the auxiliary rods 8 parallel to the clamping rod 5. A threaded rod 9 is horizontally positioned, and the movable sleeve 10 is connected to the threaded rod 9. The two ends of the symmetrically arranged rotating rod 11 are connected to the movable sleeve 10 and the clamping rod 5, respectively. One end of the connecting rod 12 rotates with the rotating rod 11. In the use state of the clamping assembly, the rotating plate 3 rotates, causing the sliding member 4 and the clamping rod 5 to move along the limiting groove 7 within the sliding groove to adapt to optical lenses of different sizes. The threaded sleeve moves along the threaded rod 9, causing the angle of the rotating rod 11 and the connecting rod 12 to change. The auxiliary rod 8 moves closer to the lens to increase the contact point. The steering assembly is connected to the coating machine body 1. In the use state of the steering assembly, the rotating end of the steering assembly causes the clamping assembly to change angle.

[0025] Example 2

[0026] like Figures 2-5 As shown, the present invention proposes a large-aperture optical telescope mirror coating machine device. Compared with Embodiment 1, this embodiment describes the detailed structure of the clamping assembly. The clamping assembly also includes a telescopic device 25 and a push rod 26. One end of the telescopic device 25 is rotatably connected to the support shaft 23. The telescopic device 25 is selected from, but is not limited to, a hydraulic cylinder. One end of the push rod 26 passes through the notch opened on the fixed plate 13 and is connected to the rotating plate 3. The other end of the push rod 26 is connected to the telescopic end of the telescopic device 25.

[0027] In an optional embodiment, the fixing base 2 is composed of a fixing plate 13 and a connecting plate 14. The fixing plate 13 is connected to the connecting plate 14. A receiving groove is formed on the side of the fixing plate 13 near the connecting plate 14, and a limiting groove 7 is formed on the connecting plate 14.

[0028] In an optional embodiment, the slider 4 is composed of a sliding rod 15, a sliding block 16 and a support plate 17. One end of the sliding rod 15 is slidably connected in the limiting groove 7, the sliding block 16 is slidably connected in the limiting groove 7, the sliding block 16 is connected to one end of the sliding rod 15, the support plate 17 is connected to the sliding block 16, and one end of the support plate 17 is connected to the clamping rod 5.

[0029] In an optional embodiment, both sides of the sliding block 16 are connected to protrusions 18, and the protrusions 18 are slidably connected to the auxiliary grooves 19 opened on the side walls of the limiting groove 7.

[0030] The auxiliary components also include a fixing block 20 and an adjusting handle 21. The fixing block 20 is connected to the sliding block 16. The fixing block 20 is hinged to the connecting rod 12 and one end of the threaded rod 9. The adjusting handle 21 is connected to one end of the threaded rod 9.

[0031] In an optional embodiment, both the clamping rod 5 and the auxiliary rod 8 are connected to protective sleeves; the protective sleeves are made of, but are not limited to, silicone material, to prevent damage to the lens.

[0032] Example 3

[0033] like Figure 2 , Figure 4 As shown, the present invention proposes a large-aperture optical telescope mirror coating machine device. Compared with Embodiment 2, this embodiment describes the detailed structure of the rotating component. The rotating component includes a drive device 22, a support shaft 23, and a mating rod 24. The drive device 22 is connected to the coating machine body 1. The drive device 22 is selected from, but is not limited to, a servo motor. One end of the support shaft 23 is connected to the fixed plate 13, and the other end of the support shaft 23 is connected to the output end of the drive device 22. One end of the mating rod 24 is rotatably connected to the coating machine body 1, and the other end of the mating rod 24 is connected to the fixed plate 13.

[0034] When using this invention, the operator can activate the drive device 22 to rotate the support shaft 23, the fixed seat 2, and the cooperating rod 24 when placing the optical lens, so that the fixed seat 2 changes from a horizontal state to a vertical state to prevent the optical lens from falling. Alternatively, the lens can be placed directly with the assistance of external equipment. After the lens is correctly positioned, the telescopic device 25 is activated so that its output end drives the push rod 26 to move. The push rod 26 drives the rotating plate 3 to rotate, and the positions of the multiple arc-shaped guide grooves 6 eccentrically set on the rotating plate 3 change. This causes the sliding rod 15 and the sliding block 16 to move horizontally towards the center of the fixed seat 2 along the limiting groove 7 on the connecting plate 14. The holding rod 5 thus contacts the side wall of the optical lens for clamping and fixing. If a larger lens needs to be clamped, the adjusting handle 21 is rotated to drive the threaded rod 9 to rotate. The movable sleeve 10 on the threaded rod 9 moves along the threaded rod 9 and approaches the fixing block 20. When the movable sleeve 10 moves, the angle of the connecting rod 12 connected to it changes and drives the rotating rod 11 to rotate at the rotating connection point. The auxiliary rod 8 connected to the rotating rod 11 approaches the clamping rod 5, which works with the clamping rod 5 to increase the contact point with the lens to reduce the local stress on the lens and prevent it from being damaged. After the single-sided coating is completed, the drive device 22 is started to drive the clamping assembly and the lens to rotate and coat the other side.

[0035] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A large-aperture optical telescope mirror coating machine device, characterized in that, include The coating machine body (1) has a coating chamber inside; The clamping assembly is connected to the coating machine body (1). The clamping assembly includes a fixed base (2), a rotating plate (3), a sliding member (4), a clamping rod (5), and an auxiliary assembly. The fixed base (2) has a cavity. The rotating plate (3) is rotatably connected to the cavity. The rotating plate (3) has multiple guide grooves (6). The number of sliding members (4) corresponds to the number of guide grooves (6). One end of the sliding rod (15) is slidably connected to the guide groove (6). The other end of the sliding member (4) passes through the limiting groove (7) on the fixed base (2) and connects to the clamping rod (5). The clamping rod (5) contacts the lens. The auxiliary assembly is connected to the clamping rod (5). The auxiliary components include an auxiliary rod (8), a threaded rod (9), a movable sleeve (10), a rotating rod (11), and a connecting rod (12). The two auxiliary rods (8) are symmetrically arranged on both sides of the clamping rod (5). The auxiliary rods (8) are parallel to the clamping rod (5). The threaded rod (9) is arranged in the horizontal direction. The movable sleeve (10) is connected to the threaded rod (9). The two ends of the symmetrically arranged rotating rod (11) are connected to the movable sleeve (10) and the clamping rod (5) respectively. One end of the connecting rod (12) rotates with the rotating rod (11). When the clamping assembly is in use, the rotating plate (3) rotates to make the sliding part (4) and the clamping rod (5) move along the limiting groove (7) in the sliding groove to adapt to optical lenses of different sizes. The threaded sleeve moves along the threaded rod (9) to cause the rotating rod (11) and the connecting rod (12) to change angles. The auxiliary rod (8) moves closer to the lens to increase the contact point. The steering assembly is connected to the coating machine body (1); when the steering assembly is in use, the rotating end of the steering assembly drives the clamping assembly to change angle.

2. The apparatus for coating large-aperture optical telescope mirrors according to claim 1, characterized in that, The fixed base (2) consists of a fixed plate (13) and a connecting plate (14). The fixed plate (13) is connected to the connecting plate (14). The fixed plate (13) has a receiving groove on the side near the connecting plate (14), and the limiting groove (7) is opened on the connecting plate (14).

3. The apparatus for coating large-aperture optical telescope mirrors according to claim 1, characterized in that, The sliding component (4) consists of a sliding rod (15), a sliding block (16) and a support plate (17). One end of the sliding rod (15) is slidably connected in the limiting groove (7), and the sliding block (16) is slidably connected in the limiting groove (7). The sliding block (16) is connected to one end of the sliding rod (15), and the support plate (17) is connected to the sliding block (16). One end of the support plate (17) is connected to the clamping rod (5).

4. The apparatus for coating large-aperture optical telescope mirrors according to claim 3, characterized in that, Both sides of the sliding block (16) are connected to protrusions (18), and the protrusions (18) are slidably connected to the auxiliary grooves (19) opened on both sides of the limiting groove (7).

5. The apparatus for coating large-aperture optical telescope mirrors according to claim 1, characterized in that, The auxiliary components also include A fixed block (20) is connected to a sliding block (16), and the fixed block (20) is rotatably connected to one end of a connecting rod (12) and a threaded rod (9); Adjusting handle (21) is connected to one end of threaded rod (9).

6. The apparatus for coating large-aperture optical telescope mirrors according to claim 2, characterized in that, Rotating assembly includes A drive unit (22) is connected to the coating machine body (1); A support shaft (23) is connected at one end to a fixed plate (13) and at the other end to the output end of a drive device (22). The mating rod (24) is rotatably connected at one end to the coating machine body (1) and at the other end to the fixing plate (13).

7. The apparatus for coating large-aperture optical telescope mirrors according to claim 1, characterized in that, The clamping assembly also includes Telescopic device (25), one end of which is rotatably connected to support shaft (23); The push rod (26) has one end passing through a notch in the fixed plate (13) and connecting to the rotating plate (3), and the other end of the push rod (26) is connected to the telescopic end of the telescopic device (25).

8. The apparatus for coating large-aperture optical telescope mirrors according to claim 1, characterized in that, Protective sleeves are connected to both the clamping rod (5) and the auxiliary rod (8).

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