Dust removal device for assembling optical lenses

CN120838761BActive Publication Date: 2026-10-09BENGBU CHANGTIAN PHOTOELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202511281302.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-09
Publication Date
2026-10-09
Estimated Expiration
2045-09-09

AI Technical Summary

Technical Problem

[0004]然而该装置依然存在下列问题:(1)镜片除尘存在盲区;在对光学镜片进行清洁时,装置缺乏固定夹持结构,镜片在除尘时会因重力作用沉入放置框内,放置框内会积累灰尘,与镜片进行粘附,除尘效果较差;(2)镜片易产生刮痕:在对光学镜片进行除尘时,超声波在液体中产生高频振动和空化气泡,气泡破裂时释放的冲击力可能推动镜片移动或翻转,在镜片的移动下易与放置框发生碰撞,产生刮痕;(3)误检率升高:检测台固定角度可能因镜片反光、曲面折射或阴影遮挡,误判清洁状态(如将反光点识别为灰尘)

Benefits of technology

一、本装置通过在放置框内设置导轨,导轨的表面滑动连接的固定框架,可以将光学镜片在除尘过程中放置在放置框的中心处,避免光学镜片因重力作用下沉入放置框的底面,再次沾染灰尘,同时每个光学镜片独立放置,避免在超声波进行除尘时相互碰撞或与放置框的内壁表面撞击,产生刮痕。

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Abstract

The present application relates to the technical field of optical lens assembly, in particular to a dust removal equipment for optical lens assembly, the inner wall surface of the ultrasonic dust removal instrument is slidably connected with a placing frame, two guide rails are welded at the center of the inner wall surface of the placing frame, a fixed frame is fixedly installed on the surface of the insertion block, a plurality of lens clamping plates are welded on the inner wall surface of the fixed frame, a through hole is formed on the surface of each side of the plurality of lens clamping plates, two threaded holes are formed on the surface of the clamping piece, and a fixing screw is movably inserted into each threaded hole. The lens clamping plate, the connecting rod and the clamping piece are arranged to clamp the mesh cloth, the optical lens is placed in the mesh cloth, and the optical lens can be rotated by the water flow of the ultrasonic wave during angle adjustment, so that the optical lens can be cleaned at different angles, the dust removal is more thorough, and the dust removal efficiency is improved.
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Description

Technical Field

[0001] This invention relates to the field of optical lens assembly technology, and more particularly to a dust removal device for optical lens assembly. Background Technology

[0002] Optical lenses are widely used in many high-tech and precision manufacturing fields. Dust, particles or fibers adhering to the lens surface will scatter light, causing blurred images, glare or light spots. Impurities on optical lenses seriously affect precision, and dust removal equipment is needed to remove dust and improve the precision of optical lenses.

[0003] For example, the prior art patent document with publication number CN116689388A provides a dust removal device for assembling optical lenses; after placing the optical lenses in a placement basket, an ultrasonic cleaner drives water vibration to clean the optical lenses, and then the motor is started, and the upper and lower wiping blocks wipe the optical lenses, thereby achieving the dust removal effect.

[0004] However, the device still has the following problems: (1) There is a blind spot in lens dust removal; when cleaning optical lenses, the device lacks a fixed clamping structure. When dusting, the lens will sink into the placement frame due to gravity. Dust will accumulate in the placement frame and adhere to the lens, resulting in poor dust removal effect; (2) The lens is prone to scratches: when cleaning optical lenses, ultrasonic waves generate high-frequency vibrations and cavitation bubbles in the liquid. The impact force released when the bubbles burst may push the lens to move or flip. The lens is prone to collision with the placement frame under movement, resulting in scratches; (3) The false detection rate increases: the fixed angle of the detection stage may be misjudged due to lens reflection, curved surface refraction or shadow occlusion (such as identifying reflective points as dust). Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the background art, and to propose a dust removal device for assembling optical lenses.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a dust removal device for optical lens assembly, comprising an ultrasonic dust collector, wherein a placement frame is slidably connected to the inner wall surface of the ultrasonic dust collector, two guide rails are welded at the center of the inner wall surface of the placement frame, an insertion block is slidably connected to the surface of the two guide rails, a fixing frame is fixedly installed on the surface of the insertion block, a plurality of lens clamping plates are welded to the inner wall surface of the fixing frame, through holes are opened on both sides of the plurality of lens clamping plates, a connecting rod is rotatably connected to the surface of the two through holes, a clamping piece is fixedly installed at the end of the connecting rod, a mesh cloth is provided on the inner wall surface of the clamping piece, two threaded holes are opened on the surface of the clamping piece, and a fixing screw is movably inserted into the surface of the two threaded holes.

[0007] In the aforementioned dust removal equipment for assembling optical lenses, two L-shaped fixing plates are fixedly connected to the upper surface of the mesh cloth, and a movable spring is fixedly installed on the lower surface of the L-shaped fixing plates. The movable spring passes through the inner wall surface of the mesh cloth, and a wiping sponge is fixedly installed on the lower surface of the movable spring. An optical lens is movably connected to the lower surface of the wiping sponge, and the upper surface of the wiping sponge is movably connected to the surface of the mesh cloth.

[0008] In the aforementioned dust removal equipment for assembling optical lenses, the surface of the mesh cloth is provided with a lens inlet, and the surface of the lens inlet is provided with snaps.

[0009] In the aforementioned dust removal equipment for assembling optical lenses, a side plate of the placement frame is hinged to one side surface of the placement frame, and a mounting hole is provided at the edge of the upper surface of the side plate of the placement frame, with a positioning screw movably inserted into the surface of the mounting hole.

[0010] In the aforementioned dust removal equipment for assembling optical lenses, a vertical mounting plate is welded to the upper surface edge of the ultrasonic dust collector. A servo motor is fixedly mounted on the upper surface of the vertical mounting plate. A drive rod is fixedly connected to the output end of the servo motor. A worm gear is welded to the surface of the drive rod. A worm is meshed with the surface of the worm gear. The worm passes through the surface of the vertical mounting plate and is movably connected to the vertical mounting plate. The end of the worm is fixedly connected to the upper surface edge of the placement frame.

[0011] In the aforementioned dust removal equipment for assembling optical lenses, an arc-shaped fixed arc plate is welded to the upper surface of the ultrasonic dust collector adjacent to the vertical mounting plate. A water inlet pipe is movably inserted into the surface of the arc-shaped fixed arc plate, and a drain pipe is fixedly connected to the lower part of the side surface of the ultrasonic dust collector on the same side as the arc-shaped fixed arc plate.

[0012] In the aforementioned dust removal equipment for assembling optical lenses, a detection seat is welded to the surface of the ultrasonic dust collector away from the drain pipe. A drive motor A is fixedly connected to the upper surface of the detection seat. A rotating rod A is fixedly connected to the output end of the drive motor A. A drive motor B is fixedly connected to the upper surface of the detection seat adjacent to the drive motor A. A rotating rod B is fixedly installed at the output end of the drive motor B. The diameter of the rotating rod B is larger than the diameter of the rotating rod A. The inner wall of the rotating rod B is movably connected to the rotating rod A. A connecting plate A is fixedly inserted into the surface of the rotating rod A. A U-shaped connecting frame is welded to the center of the upper surface of the connecting plate A. A connecting plate B is welded to the end of the U-shaped connecting frame. The connecting plate B is rotatably connected to the rotating rod B.

[0013] In the aforementioned dust removal equipment for assembling optical lenses, a driving bevel gear is fixedly installed on the surface of the rotating rod B adjacent to the connecting plate B, a fixed rod is rotatably connected to the center of the surface of the U-shaped connecting frame, a driven bevel gear is welded to the lower surface of the fixed rod, the driven bevel gear meshes with the driving bevel gear, and a testing platform is fixedly installed on the upper surface of the fixed rod.

[0014] Compared with existing technologies, the advantages of this dust removal equipment for optical lens assembly are: 1. This device uses a guide rail inside the placement frame, with a fixed frame slidably connected to the surface of the guide rail. This allows the optical lens to be placed in the center of the placement frame during the dust removal process, preventing the optical lens from sinking to the bottom of the placement frame due to gravity and re-accumulating dust. At the same time, each optical lens is placed independently, preventing them from colliding with each other or impacting the inner wall surface of the placement frame during ultrasonic dust removal, thus avoiding scratches.

[0015] II. This device uses a lens clamping plate and its connecting rods and clamps to hold the mesh cloth, placing the optical lens inside the mesh cloth. During ultrasonic cleaning, when adjusting the angle of the optical lens, there is no need to manually move it. The mesh cloth can be rotated by the ultrasonic water flow to clean the optical lens at different angles, making dust removal more thorough and improving dust removal efficiency.

[0016] 3. This device drives rotating rods A and B to rotate via drive motors A and B. Through the meshing of the active and driven bevel gears, the detection table can achieve forward and backward adjustment and rotation. Compared with a fixed detection table, the adjustable detection table can adjust the reflection angle of the optical lens, making it easier for the camera or sensor to fully capture dust on the surface and reduce the false detection rate. Attached Figure Description

[0017] Figure 1 This is a first-view structural schematic diagram of the overall dust removal equipment of the present invention; Figure 2 This is a second-view structural diagram of the overall dust removal device of the present invention; Figure 3 This is a schematic diagram of the rotating mechanism of the dust removal equipment testing platform of the present invention; Figure 4 This is a schematic diagram of the dust removal equipment placement frame installation structure of the present invention; Figure 5 This is a schematic diagram of the overall installation structure of the fixed frame of the present invention; Figure 6 This is a schematic diagram of the overall structure of the clamping mechanism of the present invention; Figure 7 This is a schematic diagram of the lens placement mechanism of the present invention; Figure 8 This is a schematic diagram of the lens wiping mechanism of the present invention; Figure 9 This is a cross-sectional schematic diagram of the internal structure of the mesh fabric of the present invention.

[0018] In the picture: 1. Ultrasonic dust collector; 2. Arc-shaped fixed plate; 3. Water inlet pipe; 4. Worm gear; 5. Servo motor; 6. Detection table; 7. Detection seat; 8. Drain pipe; 9. Worm wheel; 10. Vertical mounting plate; 11. Drive rod; 12. Placement frame; 13. Driven bevel gear; 14. Fixed rod; 15. U-shaped connecting frame; 16. Driven bevel gear; 17. Rotating rod B; 18. Drive motor B; 19. Drive motor A; 20. Rotating rod A; 21. Guide rail; 22. Placement frame side plate; 23. Fixed frame; 24. Insertion block; 25. Lens clamping plate; 26. Mesh cloth; 27. Fixing screw; 28. Connecting rod; 29. ​​Clamping piece; 30. L-shaped fixing plate; 31. Movable spring; 32. Snap fastener; 33. Lens inlet; 34. Wiping sponge; 35. Optical lens; 36. Connecting plate A; 37. Connecting plate B. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this invention.

[0021] Reference Figures 1-9 An optical lens assembly dust removal device includes an ultrasonic dust collector 1. A placement frame 12 is slidably connected to the inner wall surface of the ultrasonic dust collector 1. Two guide rails 21 are welded at the center of the inner wall surface of the placement frame 12. An insertion block 24 is slidably connected to the surface of the two guide rails 21. A fixing frame 23 is fixedly installed on the surface of the insertion block 24. A plurality of lens clamping plates 25 are welded to the inner wall surface of the fixing frame 23. Through holes are opened on both sides of the plurality of lens clamping plates 25. A connecting rod 28 is rotatably connected to the surface of the two through holes. A clamping piece 29 is fixedly installed at the end of the connecting rod 28. A mesh cloth 26 is provided on the inner wall surface of the clamping piece 29. Two threaded holes are opened on the surface of the clamping piece 29. A fixing screw 27 is movably inserted into the surface of the two threaded holes.

[0022] Two L-shaped fixing plates 30 are fixedly connected to the upper surface of the mesh fabric 26. A movable spring 31 is fixedly installed on the lower surface of the L-shaped fixing plate 30. The movable spring 31 passes through the inner wall surface of the mesh fabric 26. A wiping sponge 34 is fixedly installed on the lower surface of the movable spring 31. An optical lens 35 is movably connected to the lower surface of the wiping sponge 34.

[0023] The surface of the mesh fabric 26 has a lens inlet 33, and the surface of the lens inlet 33 has a snap button 32. A side plate 22 of the placement frame 12 is hinged to one side surface. A mounting hole is provided at the edge of the upper surface of the side plate 22, and a positioning screw is movably inserted into the surface of the mounting hole.

[0024] A vertical mounting plate 10 is welded to the edge of the upper surface of the ultrasonic dust collector 1. A servo motor 5 is fixedly mounted on the upper surface of the vertical mounting plate 10. A drive rod 11 is fixedly connected to the output end of the servo motor 5. A worm gear 9 is welded to the surface of the drive rod 11. A worm 4 is meshed with the surface of the worm gear 9. The worm 4 passes through the surface of the vertical mounting plate 10 and is movably connected to the vertical mounting plate 10. The end of the worm 4 is fixedly connected to the edge of the upper surface of the placement frame 12.

[0025] An arc-shaped fixed arc plate 2 is welded to the upper surface of the ultrasonic dust collector 1 adjacent to the vertical mounting plate 10. A water inlet pipe 3 is movably inserted into the surface of the arc-shaped fixed arc plate 2. A drain pipe 8 is fixedly connected to the lower part of the side surface of the ultrasonic dust collector 1 on the same side as the arc-shaped fixed arc plate 2.

[0026] The working principle and usage of this invention are explained in detail below: When dust removal is required for the optical lens 35, the optical lens 35 is placed into the mesh cloth 26 through the lens inlet 33, and the snap fastener 32 is fastened to prevent the optical lens 35 from falling off during the dust removal process. The side plate 22 of the placement frame is opened, and the size of the guide rail 21 matches the size of the insertion block 24. After inserting the insertion block 24 into the guide rail 21, the servo motor 5 is started. The servo motor 5 drives the worm gear 9 to rotate circumferentially to adjust the worm 4 up and down. The placement frame 12 is placed at the lower part of the ultrasonic dust collector 1, and cleaning fluid is injected into the ultrasonic dust collector 1 through the water inlet pipe 3 to clean the optical lens. The lens 35 is dusted. During the dust removal process, the connecting rod 28 and the lens clamping plate 25 are rotatably connected, causing the clamping plate 29 to drive the mesh cloth 26 to rotate at different angles as the ultrasonic cleaning fluid is agitated, cleaning the optical lens 35 at different angles. At the same time, as the cleaning fluid is pushed, the movable spring 31 will shake, causing the wiping sponge 34 to shake, wiping the surface of the optical lens 35. The fixed frame 23 is located at the center of the placement frame 12, and will not be contaminated with dust from the bottom of the inner wall of the placement frame 12 when cleaning the optical lens 35, thus enhancing the dust removal efficiency. The fixed screw 27 that is movably inserted on the surface of 39 allows the user to replace and clean the mesh cloth 26 regularly.

[0027] Among them, the ultrasonic dust collector 1 has a detection seat 7 welded to the side of the surface away from the drain pipe 8. The upper surface of the detection seat 7 is fixedly connected to the drive motor A19. The output end of the drive motor A19 is fixedly connected to the rotating rod A20. The upper surface of the detection seat 7 is fixedly connected to the drive motor A19 at the adjacent position. The output end of the drive motor B18 is fixedly installed with the rotating rod B17. The diameter of the rotating rod B17 is larger than the diameter of the rotating rod A20. The inner wall of the rotating rod B17 is movably connected to the rotating rod A20. The surface of the rotating rod A20 is fixedly inserted with the connecting plate A36. The center of the upper surface of the connecting plate A36 is welded with a U-shaped connecting frame 15. The end of the U-shaped connecting frame 15 is welded with the connecting plate B37. The connecting plate B37 is rotatably connected to the rotating rod B17. A drive bevel gear 16 is fixedly installed on the surface of the rotating rod B17 adjacent to the connecting plate B37. A fixed rod 14 is rotatably connected at the center of the surface of the U-shaped connecting frame 15. A driven bevel gear 13 is welded to the lower surface of the fixed rod 14. The driven bevel gear 13 meshes with the drive bevel gear 16. A testing table 6 is fixedly installed on the upper surface of the fixed rod 14.

[0028] When inspecting the optical lens 35, this device drives the rotating rod A20 to rotate by starting the drive motor A19, which in turn drives the U-shaped connecting frame 15 to rotate back and forth. By starting the drive motor B18, the rotating rod B17 is driven to rotate. The meshing of the driving bevel gear 16 and the driven bevel gear 13 drives the inspection table 6 to rotate. The multi-angle adjustable inspection table 6 can adjust the optical lens 35 at multiple angles, effectively reducing the false detection rate.

[0029] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dust removal device for assembling optical lenses, comprising an ultrasonic dust collector, characterized in that: The ultrasonic dust collector has a placement frame slidably connected to its inner wall surface. Two guide rails are welded to the center of the inner wall surface of the placement frame. An insertion block is slidably connected to the surface of the two guide rails. A fixing frame is fixedly installed on the surface of the insertion block. Several lens clamping plates are welded to the inner wall surface of the fixing frame. Through holes are opened on both sides of the lens clamping plates. A connecting rod is rotatably connected to the surface of each through hole. A clamping piece is fixedly installed at the end of the connecting rod. A mesh cloth is provided on the inner wall surface of the clamping piece. Two threaded holes are opened on the surface of the clamping piece. A fixing screw is movably inserted into the surface of each threaded hole. Two L-shaped fixing plates are fixedly connected to the upper surface of the mesh fabric. Two movable springs are fixedly installed on the lower surface of each L-shaped fixing plate. The two movable springs pass through the inner wall surface of the mesh fabric. A wiping sponge is fixedly installed on the lower surface of the movable spring. An optical lens is movably connected to the lower surface of the wiping sponge. The upper surface of the wiping sponge is movably connected to the inner wall surface of the mesh fabric. The surface of the mesh fabric has a lens inlet, and the surface of the lens inlet is provided with snaps.

2. The dust removal equipment for assembling optical lenses according to claim 1, characterized in that: A side plate is hinged to one side surface of the placement frame, and a mounting hole is provided at the edge of the upper surface of the side plate. A positioning screw is movably inserted into the surface of the mounting hole.

3. The dust removal equipment for assembling optical lenses according to claim 2, characterized in that: A vertical mounting plate is welded to the upper edge of the ultrasonic dust collector. A servo motor is fixedly mounted on the upper surface of the vertical mounting plate. A drive rod is fixedly connected to the output end of the servo motor. A worm gear is welded to the surface of the drive rod. A worm is meshed with the surface of the worm gear. The worm passes through the surface of the vertical mounting plate and is slidably connected to the vertical mounting plate. The end of the worm is fixedly connected to the upper edge of the placement frame.

4. The dust removal equipment for assembling optical lenses according to claim 3, characterized in that: An arc-shaped fixed plate is welded to the upper surface of the ultrasonic dust collector adjacent to the vertical mounting plate. A water inlet pipe is movably inserted into the surface of the arc-shaped fixed plate. A drain pipe is fixedly connected to the lower part of the side surface of the ultrasonic dust collector on the same side as the arc-shaped fixed plate.

5. The dust removal equipment for assembling optical lenses according to claim 4, characterized in that: A detection seat is welded to the surface of the ultrasonic dust collector away from the drain pipe. A drive motor A is fixedly connected to the upper surface of the detection seat. A rotating rod A is fixedly connected to the output end of the drive motor A. A drive motor B is fixedly connected to the upper surface of the detection seat adjacent to the drive motor A. A rotating rod B is fixedly installed at the output end of the drive motor B. The diameter of the rotating rod B is larger than the diameter of the rotating rod A. The inner wall of the rotating rod B is rotatably connected to the rotating rod A. A connecting plate A is fixedly inserted into the surface of the rotating rod A. A U-shaped connecting frame is welded to the center of the upper surface of the connecting plate A. A connecting plate B is welded to the end of the U-shaped connecting frame. The connecting plate B is rotatably connected to the rotating rod B.

6. The dust removal equipment for assembling optical lenses according to claim 5, characterized in that: A driving bevel gear is fixedly installed on the surface of the rotating rod B adjacent to the connecting plate B. A fixed rod is rotatably connected to the center of the surface of the U-shaped connecting frame. A driven bevel gear is welded to the lower surface of the fixed rod. The driven bevel gear meshes with the driving bevel gear. A testing platform is fixedly installed on the upper surface of the fixed rod.

Citation Information

Patent Citations

  • Dust removal equipment for optical lens assembly

    CN116689388A

  • Large blast furnace power supply system guarantee monitoring device and use method thereof

    CN113224828A

  • Drying device for optical lens cleaning

    CN216845511U