Optical lens outer surface defect detection equipment

Abstract

The utility model relates to the technical field of optical lens detection, in particular to optical lens outer surface defect detection equipment. The optical lens outer surface defect detection equipment comprises a workbench, a mechanical arm, a suction cup assembly, a detection lens, a mounting frame, a fixing plate, a light supplementing lamp, a connecting frame, a first motor, a rotating frame and a clamping assembly, the mechanical arm is mounted on the front side of the workbench, and the suction cup assembly is arranged on the mechanical arm; the upper side of the workbench is connected with two installation frames, and a detection lens is installed between the installation frames. According to the lens detection device, the mechanical arm is tightly matched with the suction cup assembly, automatic feeding and discharging of lenses are achieved, the clamping assembly can be automatically controlled through the arrangement of the second motor, it is ensured that the lenses are firmly fixed in the detection process, manual intervention is reduced, the production efficiency and consistency are improved, and the production cost is reduced. And the remote control system is used for uniformly scheduling the work of each component, so that the accuracy and stability of operation are ensured.

Description

Technical Field

[0001] This utility model relates to the field of optical lens inspection technology, and in particular to an optical lens outer surface defect inspection device. Background Technology

[0002] With the continuous advancement of technology, the importance of optical lenses in daily life and industrial applications is becoming increasingly prominent. Whether it's smartphones, cameras, microscopes, or telescopes, high-quality optical lenses are crucial for ensuring their performance. Therefore, ensuring the surface of optical lenses is defect-free has become a top priority in the manufacturing process.

[0003] However, in traditional optical lens manufacturing processes, the detection of surface defects typically relies on manual operation. Operators must manually place the lens onto the inspection equipment, adjust its position, perform the inspection, and then classify and process it based on the results. This method has several major problems:

[0004] 1. Manual operation is slow and cannot meet the high-volume demands of large-scale production. Especially when facing large-volume, continuous production, manual operation can easily become a bottleneck for the entire production line.

[0005] 2. The varying operating habits and skill levels of different operators lead to differences in clamping force, position adjustment, and other aspects of each test, affecting the consistency and accuracy of the test results.

[0006] 3. Long-term repetitive manual operations not only increase the labor intensity of workers, but may also lead to fatigue and operational errors, thereby affecting product quality. Utility Model Content

[0007] To overcome the aforementioned shortcomings, the technical problem to be solved is to provide an optical lens outer surface defect detection device.

[0008] The technical solution of this utility model is: an optical lens outer surface defect detection device, including a worktable, a robotic arm, a suction cup assembly, a detection lens, a mounting frame, a fixing plate, a supplementary light, a connecting frame, a first motor, a rotating frame, and a clamping assembly. A robotic arm is mounted on the front of the worktable, and a suction cup assembly is installed on the robotic arm. Two mounting frames are connected to the upper part of the worktable, and a detection lens is installed between the mounting frames. A fixing plate is installed in the middle of the worktable surface, and a supplementary light is installed on the fixing plate, located directly below the detection lens. A connecting frame is connected to the middle of the upper part of the worktable, and a first motor is mounted on the connecting frame. A rotating frame is connected to the output shaft of the first motor, and a clamping assembly for holding the lens is provided on the rotating frame. The clamping assembly is located between the detection lens and the supplementary light, and all three are aligned in a straight line. The robotic arm, suction cup assembly, detection lens, supplementary light, and first motor are all electrically connected to a remote control system.

[0009] In one embodiment, the clamping assembly includes a movable plate, a limiting rod, a spring, a V-shaped groove, and a moving component. The limiting rod is connected to the front side of the rotating frame, and the movable plate is symmetrically and slidably connected to the limiting rod. The inner side of the movable plate is slidably connected to the V-shaped groove, and two springs are connected between the V-shaped groove and the movable plate. The moving component is provided on the rotating frame.

[0010] In one embodiment, the inner end face of the V-shaped slot has a wave structure.

[0011] In one embodiment, the moving component includes a bidirectional screw and a second motor. The bidirectional screw is rotatably connected to the inner side of the rotating frame, and the second motor is installed on the left side of the rotating frame. The left end of the bidirectional screw passes through the rotating frame and is connected to the output shaft of the second motor. Two movable plates are threadedly connected to both sides of the bidirectional screw, and the second motor is electrically connected to the remote control system.

[0012] In one embodiment, the device also includes a fan, an air pipe, and an air outlet. The fan is fixed in the middle of the top of the rotating frame and is electrically connected to the remote control system. The top of each movable plate is connected to an air outlet. The rear ends of the two air outlets are connected to the fan end face through air pipes and are in communication with each other. Multiple air outlet holes are equidistantly opened on the inner side of the air outlet holes, and the air outlet holes face obliquely downwards to accurately blow the gas onto the lens surface.

[0013] In one embodiment, the air pipe is a flexible tube, and the air pipe is not affected by the movement of the air outlet as it moves with the movable plate.

[0014] The beneficial effects of this utility model are: 1. Through the close cooperation between the robotic arm and the suction cup assembly, the automatic loading and unloading of lenses is realized. The setting of the second motor can automatically control the clamping assembly to ensure that the lenses are firmly fixed during the inspection process. This not only reduces manual intervention but also improves production efficiency and consistency. Furthermore, the operation accuracy and stability are ensured by uniformly scheduling the work of each component through the remote control system.

[0015] 2. The V-shaped slot in the clamping assembly adopts a specific shape design. Combined with the application of spring preload, it enables the equipment to stably fix circular lenses of different sizes and shapes, enhancing the equipment's versatility and adaptability. The structure of the movable plate and spring can automatically adjust the clamping force according to the actual size of the lens, ensuring both operational safety and flexibility, while avoiding lens damage or slippage caused by excessive or insufficient clamping force.

[0016] 3. By drawing air through a fan, air can be blown onto the lens surface, effectively removing dust particles and other fine impurities. This ensures that the inspection lens is not affected by external contaminants during scanning, thereby improving the accuracy and reliability of the inspection results. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the fixing plate, supplementary light, connecting frame, etc. of this utility model.

[0019] Figure 3 This is a three-dimensional structural diagram of the first motor, rotating frame, V-shaped slot, etc. of this utility model.

[0020] Figure 4 This is a three-dimensional structural diagram of the fan, air pipe, and air outlet of this utility model.

[0021] The components in the diagram are labeled as follows: 1-Workbench, 2-Robot arm, 4-Suction cup assembly, 5-Detection lens, 6-Mounting bracket, 7-Fixed plate, 8-Supplemental light, 9-Connecting bracket, 10-First motor, 12-Rotating bracket, 13-Double screw, 14-Second motor, 15-Moving plate, 16-Limit rod, 18-Spring, 19-V-shaped slot, 20-Fan, 21-Air pipe, 22-Air outlet. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Example: An optical lens outer surface defect detection device, such as... Figures 1-3 As shown, the system includes a worktable 1, a robotic arm 2, a suction cup assembly 4, an inspection lens 5, a mounting bracket 6, a fixing plate 7, a supplementary light 8, a connecting bracket 9, a first motor 10, a rotating frame 12, and a clamping assembly. The robotic arm 2 is bolted to the front of the worktable 1. The robotic arm 2 is equipped with a suction cup assembly 4, which is responsible for moving the lens to be inspected from the loading area to the inspection position and transferring the lens to the corresponding process after inspection. Two mounting brackets 6 are welded to the upper side of the worktable 1, and the inspection lens 5 is bolted between the mounting brackets 6. The inspection lens 5 can detect surface defects of optical lenses. A fixing plate 7 is installed in the middle of the worktable 1, and a supplementary light 8 is installed on the fixing plate 7. Located directly below the inspection lens 5, a connecting frame 9 is connected to the middle of the upper part of the worktable 1. A first motor 10 is bolted to the connecting frame 9. A rotating frame 12 is connected to the output shaft of the first motor 10. The rotating frame 12 is equipped with a clamping component for holding the lens. The clamping component is located between the inspection lens 5 and the supplementary light 8, and the three are in a straight line. The first motor 10 drives the rotating frame 12 to rotate, which can drive the lens to rotate and adjust the angle through the clamping component, so as to facilitate the inspection of the upper and lower surfaces of the lens, meet the needs of all-round inspection, and improve the inspection accuracy. The robotic arm 2, the suction cup assembly 4, the inspection lens 5, the supplementary light 8, and the first motor 10 are all electrically connected to the remote control system.

[0024] like Figure 3 As shown, the clamping assembly includes a movable plate 15, a limiting rod 16, a spring 18, a V-shaped slot 19, and a moving component. The limiting rod 16 is welded to the front of the rotating frame 12. The movable plate 15 is symmetrically and slidably connected to the limiting rod 16. The inner side of the movable plate 15 is slidably connected to the V-shaped slot 19. The robot arm 2 drives the suction cup assembly 4 to adsorb the lens and move to the inner side of the two V-shaped slots 19. The lens can be clamped by the two V-shaped slots 19 coming closer to each other. The shape of the V-shaped slot 19 can limit the circular lens over a large area, ensuring its stability in the front-back and left-right directions. In addition, the inner end face of the V-shaped slot 19 has a wave structure, which can increase the friction between the V-shaped slot and the lens wall, ensuring the stability of the clamping. Two springs 18 are connected between the V-shaped slot 19 and the movable plate 15. The rotating frame 12 is equipped with a moving component.

[0025] like Figure 3 As shown, the moving component includes a bidirectional screw 13 and a second motor 14. The bidirectional screw 13 is rotatably connected to the inner side of the rotating frame 12. The second motor 14 is bolted to the left side of the rotating frame 12. The left end of the bidirectional screw 13 passes through the rotating frame 12 and is connected to the output shaft of the second motor 14. Two movable plates 15 are threaded to both sides of the bidirectional screw 13 respectively. The second motor 14 is electrically connected to the remote control system.

[0026] like Figure 4 As shown, it also includes a fan 20, an air pipe 21, and an air outlet 22. The fan 20 is fixed in the middle of the top of the rotating frame 12. The fan 20 is electrically connected to the remote control system. The top of the movable plate 15 is connected to the air outlet 22. The rear ends of the two air outlets 22 are connected to the end face of the fan 20 through the air pipe 21 and are in communication. After the fan 20 is started, it draws in external air and enters the air outlet 22 through the air pipe 21. Multiple air outlet holes are equidistantly opened on the inner side of the air outlet 22. The air outlet holes face downwards to accurately blow the gas onto the lens surface. This can remove any small particles or dust that may exist on the lens surface before testing, ensuring the accuracy of the test results. The air outlet 22 can move with the movable plate 15 to ensure the accuracy of the gas jet. The air pipe 21 is a flexible hose. When the air outlet 22 moves with the movable plate 15, the air pipe 21 will not be affected by the movement.

[0027] When inspecting defects on the outer surface of optical lenses, the control system operates the robotic arm 2 and the suction cup assembly 4. The robotic arm 2 carries the suction cup assembly 4 to the loading area, accurately adsorbs a finished lens, and then moves smoothly along a predetermined path to the inner position of the V-shaped slot 19. When the lens reaches the designated position, the remote control system commands the second motor 14 to start, which drives the movable plates 15 on both sides to move inward through the bidirectional screw 13, so that the V-shaped slot 19 gradually approaches and finally fits tightly against the edge of the lens. At this time, the spring 18 is compressed to generate a certain preload force to ensure that the lens remains stable throughout the inspection process. In order to further improve the inspection accuracy, before the inspection begins, the blower 20 is started and supplies air to the air outlet 22 through the connected elastic air pipe 21. The air outlet 22 has multiple downwardly distributed air outlet holes on the inner side, which can effectively blow air onto the lens surface to remove any small impurities that may affect the inspection effect. After the cleaning step is completed, the supplementary light 8 is lit to provide uniform and sufficient lighting conditions. At the same time, the inspection lens 5 is started and performs a full scan of the lens according to the set program, recording all possible surface defect information. This data is transmitted in real time to the remote control system for processing and analysis. After one side of the lens is inspected, if the other side of the lens needs to be inspected, the control system will start the first motor 10. The output shaft of the first motor 10 rotates, causing the rotating frame 12 to rotate 180 degrees, so that the clamping assembly and the lens rotate 180 degrees around the central axis and flip over, thereby inspecting the other side of the lens. This process ensures that both sides of the lens can be fully inspected, ensuring no omissions. The inspection results will be transmitted to the control system.

[0028] After the inspection is completed, the control system determines whether the lens is qualified based on the inspection results and directs the robotic arm 2 to approach the inspection position again. The suction cup assembly 4 picks up the inspected lens. Then, the second motor 14 rotates in reverse, driving the bidirectional screw 13 to reverse, causing the two movable plates 15 on both sides to move outwards and reset along the limit rod 16. The spring 18 rebounds and resets, and the V-shaped slot 19 moves outwards to loosen the fixation on the lens. At this point, the robotic arm 2 can safely deliver the lens to the next process or the waste collection area, thus completing the inspection of one optical lens. Following the above operation, the equipment can continuously perform inspections of other lenses, ensuring the continuity and efficiency of the production process.

[0029] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.

Claims

1. An optical lens external surface defect detection apparatus characterized in that: The utility model provides a kind of lens detection device, including workbench (1), manipulator (2), sucking disc assembly (4), detection lens (5), mounting frame (6), fixed plate (7), light supplement lamp (8), connecting frame (9), first motor (10), rotating frame (12) and clamping assembly, workbench (1) front side is equipped with manipulator (2), and sucking disc assembly (4) is provided on manipulator (2), and two mounting frames (6) are connected on workbench (1) upper side, and detection lens (5) is installed between mounting frame (6), and the middle of the mesa of workbench (1) is equipped with fixed plate (7), and light supplement lamp (8) is installed on fixed plate (7), and light supplement lamp (8) is located in the just below of detection lens (5), and connecting frame (9) is connected in the middle of workbench (1) upper portion, and first motor (10) is installed on connecting frame (9), and rotating frame (12) is connected on the output shaft of first motor (10), and rotating frame (12) is equipped with the clamping assembly for clamping lens, and clamping assembly is located between detection lens (5) and light supplement lamp (8), and three are in the same straight line, and manipulator (2), sucking disc assembly (4), detection lens (5), light supplement lamp (8) and first motor (10) are electrically connected with remote control system.

2. An optical lens surface defect detection apparatus as claimed in claim 1, characterized in that: Clamping assembly includes movable plate (15), limit rod (16), spring (18), V-shaped slot (19) and moving assembly, and the front side of rotating frame (12) is connected with limit rod (16), and limit rod (16) is slidably connected with movable plate (15) symmetrically on it, and V-shaped slot (19) is slidably connected with movable plate (15) on the inner side, and two springs (18) are connected between V-shaped slot (19) and movable plate (15), and rotating frame (12) is equipped with moving assembly.

3. An optical lens surface defect detection apparatus as claimed in claim 2, characterized in that: The inner end surface of V-shaped slot (19) is wave structure.

4. An optical lens surface defect detection apparatus as claimed in claim 3, characterized in that: Moving assembly includes bidirectional screw rod (13) and second motor (14), and rotating frame (12) is rotatably connected with bidirectional screw rod (13) on the inner side, and second motor (14) is installed on the left side of rotating frame (12), and bidirectional screw rod (13) penetrates out of rotating frame (12) on the left end, and is connected with the output shaft of second motor (14), and two movable plates (15) are respectively connected with the screw threads of bidirectional screw rod (13) on the two sides, and second motor (14) is electrically connected with remote control system.

5. An optical lens surface defect detection apparatus as claimed in claim 4, characterized in that: It also includes fan (20), air pipe (21) and air outlet tube (22), and fan (20) is fixed in the middle of rotating frame (12) top, and fan (20) is electrically connected with remote control system, and air outlet tube (22) is connected with movable plate (15) top, and two air outlet tubes (22) rear end and fan (20) end surface are connected and communicated through air pipe (21) between them, and a plurality of air outlets are equidistantly arranged in the inner side of air outlet tube (22), and air outlet tube (22) is inclined downward, so as to accurately blow gas to the surface of lens.

6. An optical lens surface defect detection device as claimed in claim 5, characterized in that: Air pipe (21) is flexible pipe, and when air outlet tube (22) moves with movable plate (15), air pipe (21) will not be affected by movement.

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