A new device for lens visual inspection

Abstract

The utility model discloses a novel equipment for lens visual inspection, its technical scheme's main point is including frame, be equipped with carousel through five work position divider drive on the frame, be equipped with five work positions for placing lens on the carousel, be equipped with lens feeding and blanking device on the first work position, be equipped with first industrial camera and first highlight bowl shape light source for detecting lens lower part respectively on the second work position, be equipped with second industrial camera and second highlight bowl shape light source for detecting lens upper part respectively on the third work position, be equipped with third industrial camera, first line light source, first motor for detecting lens upper part respectively on the fourth work position, be equipped with fourth industrial camera, second line light source, second motor for detecting lens lower part respectively on the fifth work position, the industrial code reader for scanning the code to lens to mark whether to be the qualified product. Realized the full automation, high efficiency, high accuracy's multidimensional detection.

Description

Technical Field

[0001] This utility model relates to a novel device for lens visual inspection. Background Technology

[0002] Visual inspection is the use of machines to replace human eyes for measurement and judgment. It refers to the process of converting the captured target into an image signal through machine vision products and transmitting it to a dedicated image processing system. Based on pixel distribution and information such as brightness and color, the signal is converted into a digital signal. The characteristics of machine vision inspection are to improve the flexibility and automation of production, and to be used in dangerous working environments where manual operation is not suitable or where human vision is insufficient.

[0003] Current lens visual inspection generally involves first visually inspecting the surface for major defects such as dirt and foreign objects. If no problems are found with the naked eye, a secondary inspection using an industrial camera is required to detect minor defects such as assembly misalignment >0.05mm, shell scratches, and glue overflow. This process is inefficient.

[0004] Some automated visual inspection equipment also uses existing technology that involves "a stationary lens and a moving industrial camera," such as the Chinese utility model patent with patent number CN202320473553.3. Its disadvantages include poor inspection accuracy and low inspection efficiency. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for visual inspection of lenses, which can perform automated visual inspection of processed lenses, thus solving the problem of low efficiency caused by manual screening in the prior art.

[0006] This utility model is achieved through the following technical solution.

[0007] A novel device for visual inspection of lenses is characterized by comprising: a frame 1, a turntable 5 driven by a five-station divider on the frame 1, five stations for placing lenses on the turntable 5, a lens loading and unloading device 2 on the first station, a first industrial camera 6 for inspecting the lower part of the lens and a first high-brightness bowl-shaped light source 7 for supplemental lighting on the second station, a second industrial camera 8 for inspecting the upper part of the lens and a second high-brightness bowl-shaped light source 9 for supplemental lighting on the third station, a third industrial camera 10 for inspecting the upper part of the lens, a first linear light source 11 for supplemental lighting and a first motor 12 for driving the lens to be inspected to rotate on the fourth station, and a fourth industrial camera 13 for inspecting the lower part of the lens, a second linear light source 14 for supplemental lighting and a second motor 15 for driving the lens to rotate on the fifth station, and an industrial barcode reader 16 for scanning the lens to mark whether it is a qualified product.

[0008] The novel equipment for lens visual inspection described above is characterized in that: the lens loading and unloading device 2 includes a material plate 202 with three material trays 201, one material tray 201 containing lenses to be inspected, one material tray 201 containing qualified products, and one material tray 201 containing unqualified products. The material plate 202 is driven to move horizontally along the X-axis by a first drive mechanism 203 located on the frame 1. Above the material plate 202, there is also a second drive mechanism 204 and a first support 205 driven by the second drive mechanism 204 to move horizontally along the Y-axis. On the first support 205, there is a third drive mechanism 3 and loading grippers 206 and unloading grippers 207 driven by the third drive mechanism 3 to move synchronously up and down.

[0009] The novel device for lens vision inspection described above is characterized in that: the first drive mechanism 203 and the second drive mechanism 204 are both lead screw modules, and the third drive mechanism 3 includes a third motor 301 and a synchronous pulley 302 and a synchronous belt driven by it.

[0010] The novel device for lens vision inspection described above is characterized in that: the first industrial camera 6 and the first high-brightness bowl-shaped light source 7 are height-adjustably mounted on a second bracket, which is also mounted on the frame 1. A fourth drive mechanism 17 for driving the first industrial camera 6 to rise and fall to adjust its height is provided on the second bracket. The second industrial camera 8 and the second high-brightness bowl-shaped light source 9 are height-adjustably mounted on a third bracket, which is also mounted on the frame 1. A fourth drive mechanism 17 for driving the second industrial camera 8 to rise and fall to adjust its height is also provided on the third bracket. A fourth bracket, a fifth bracket, a sixth bracket, and a seventh bracket are also provided on the frame 1. The third industrial camera 10 is height-adjustably mounted on the fourth bracket. The first line light source 11 is height-adjustably mounted on the fifth bracket via a first manual fine-tuning component 18. The fourth industrial camera 13 and the second line light source 14 are also height-adjustably mounted on the sixth bracket. The industrial barcode reader 16 is height-adjustably mounted on the seventh bracket via the first manual fine-tuning component 18.

[0011] The novel device for lens visual inspection described above is characterized in that: a plurality of second manual fine-tuning components 4 are provided on the frame 1 for adjusting the horizontal position of the third support, the fourth support, the fifth support, the sixth support, and the seventh support, respectively. The second manual fine-tuning components 4 include an X adjustment knob 401 for fine-tuning along the X-axis and a Y adjustment knob 402 for fine-tuning along the Y-axis.

[0012] The novel device for lens visual inspection described above is characterized in that an air purifier 26 is provided above the frame 1.

[0013] The novel device for lens visual inspection described above is characterized in that: a mounting plate assembly 19 is provided at each station of the turntable 5, a boss 20 is provided on the mounting plate assembly 19, a countersunk hole 21 for placing the lens is provided on the boss 20, and an external tooth is provided on the outer ring of the boss 20. A damping wheel 22 for driving the boss 20 to rotate and thus driving the lens to rotate is fixedly connected to the output shafts of the first motor 12 and the second motor 15. The damping wheel 22 is also provided with external teeth that cooperate with the external teeth of the boss 20.

[0014] The novel device for lens visual inspection described above is characterized in that: a photoelectric sensor 23 for detecting whether there is a lens on the unloading gripper 207 is provided on the first bracket 205.

[0015] The novel device for lens visual inspection described above is characterized in that: the five-station divider includes a servo motor 25 mounted on the frame 1, a hollow column 24 passing through the central hole of the turntable 5 is mounted on the frame 1, an eighth bracket is mounted on the hollow column 24, and the first motor 12 and the second motor 15 are fixed on two different eighth brackets.

[0016] The novel device for lens visual inspection described above is characterized in that: the fourth drive mechanism 17 is a lead screw module.

[0017] Compared with the prior art, the present invention has the following advantages.

[0018] 1. It achieves fully automated, highly efficient, and highly accurate multi-dimensional detection. This invention integrates loading and unloading, lens top and bottom shooting, lens top and bottom fixed shooting, and barcode marking into a single device through a five-station rotary table design, achieving assembly line operation. Compared to the traditional manual visual screening followed by machine testing, the testing efficiency is increased several times. Simultaneously, automation avoids human error, ensuring consistency in testing standards and traceability of results.

[0019] 2. An innovative detection strategy combining "flying camera" and "fixed camera" was adopted, which greatly improved the defect detection rate. The second and third stations of the aerial photography station: adopt a high-brightness bowl-shaped light source, combined with a high-performance industrial camera, to quickly image at the moment of rotary indexing. It is suitable for detecting large-area, low-contrast defects such as water ripples, uneven film color, etc., with extremely high efficiency.

[0020] The fourth and fifth shooting positions utilize a linear light source to drive the lens to rotate slowly. The linear light source illuminates the rotating lens at a certain angle, creating a noticeable light and shadow effect on minor defects such as scratches and cuts. This "cutoff light" principle greatly enhances the contrast of the defects, enabling the camera to clearly capture minute defects such as intra-film damage, extra-film damage, and micro-scratches that are difficult for the human eye and ordinary light sources to detect.

[0021] 3. The equipment is flexible and versatile with a wide range of adjustments.

[0022] By incorporating multiple drive mechanism lead screw modules and manual fine-tuning components such as X / Y adjustment knobs and manual fine-tuning frames, the height, angle, and horizontal position of all industrial cameras and light sources can be precisely adjusted. This allows a single device to quickly adapt to different models and specifications of lens products, meeting the needs of production line flexibility and reducing equipment investment costs.

[0023] 4. The structure is compact and reasonable, and the operation is stable and reliable. The loading and unloading device adopts a three-axis drive X, Y, Z and double gripper design, which realizes synchronous or sequential operation of loading and unloading, saving cycle time.

[0024] The rotary table drive uses a high-precision five-station divider, which has high positioning accuracy and ensures the accuracy of the stopping position of each station. This is the foundation for ensuring the accuracy of the detection.

[0025] The lens rotation is driven by a damping wheel in conjunction with the external gear of the boss, resulting in smooth transmission and no slippage, thus ensuring the stability of image acquisition during fixed shooting.

[0026] The built-in Class 100 FFU air purifier can create a clean environment in the detection area, effectively preventing dust in the air from falling on the lens surface and causing secondary pollution or misjudgment.

[0027] 5. It has intelligent judgment and classification functions. An integrated industrial barcode reader uniquely identifies each lens. The OK / NG result processed by the vision system is linked to this identifier, and the unloading mechanism can automatically place the lens into the qualified or unqualified product tray according to instructions, realizing data-driven production management and full lifecycle tracking of product quality. Attached Figure Description

[0028] Figure 1 This is one of the three-dimensional views of this utility model.

[0029] Figure 2 This is the second perspective view of this utility model, in which some parts are hidden.

[0030] Figure 3 This is the third perspective view of this utility model, in which some parts are hidden.

[0031] Figure 4 This is a perspective view of the second manual fine-tuning component of this utility model.

[0032] Figure 5 This is an exploded view of the second manual fine-tuning component of this utility model.

[0033] Figure 6 This is an exploded view of the mounting plate assembly of this utility model.

[0034] In the diagram: 1 is the frame; 2 is the loading / unloading device; 201 is the material tray; 202 is the material plate; 203 is the first drive mechanism; 204 is the second drive mechanism; 205 is the first support; 206 is the loading gripper; 207 is the unloading gripper; 3 is the third drive mechanism; 301 is the third motor; 302 is the synchronous pulley; 4 is the second manual fine-tuning component; 401 is the X adjustment knob; 402 is the Y adjustment knob; 5 is the turntable; 6 is the first industrial camera; 7 is the first high-brightness bowl-shaped light source; 8 is... 9 is the second industrial camera; 10 is the second high-brightness bowl-shaped light source; 11 is the third industrial camera; 12 is the first line light source; 13 is the first motor; 14 is the fourth industrial camera; 15 is the second line light source; 16 is the second motor; 17 is the industrial barcode reader; 18 is the fourth drive mechanism; 19 is the first manual fine-tuning component; 20 is the mounting plate assembly; 21 is the boss; 22 is the countersunk hole; 23 is the damping wheel; 24 is the photoelectric sensor; 25 is the hollow column; 26 is the servo motor; 27 is the air purifier. Detailed Implementation

[0035] The technical features of this utility model will be further described in detail below with reference to the accompanying drawings so that those skilled in the art can understand them.

[0036] A novel device for lens visual inspection, comprising a frame 1, wherein a turntable 5 driven by a five-station divider is arranged on the frame 1, five stations for placing lenses are arranged on the turntable 5, which are a first station, a second station, a third station, a fourth station and a fifth station respectively, a lens loading and unloading device 2 is arranged on the first station and is used for grabbing lenses for visual inspection and grabbing the inspected lenses back to place; in the second station, a first industrial camera 6 for inspecting the lower part of the lens and a first high-brightness bowl-shaped light source 7 for supplementary lighting are respectively arranged; since the lens comprises multiple layers of lenses, the upper part of the lens and the lower part of the lens need to be inspected separately, the upper part of the lens is inspected by an industrial camera arranged above the turntable 5, and the lower part of the lens is inspected by an industrial camera arranged below the turntable 5; in the third station, a second industrial camera 8 for inspecting the upper part of the lens and a second high-brightness bowl-shaped light source 9 for supplementary lighting are respectively arranged; in the fourth station, a third industrial camera 10 for inspecting the upper part of the lens, a first linear light source 11 for supplementary lighting, and a first motor 12 for driving the lens to be inspected to rotate are respectively arranged; in the fifth station, a fourth industrial camera 13 for inspecting the lower part of the lens, a second linear light source 14 for supplementary lighting, a second motor 15 for driving the lens to rotate, and an industrial code reader 16 for scanning the code of the lens to mark whether it is a qualified product are respectively arranged.

[0037] The light sources of the second station, the third station, the fourth station and the fifth station are different, because the second station and the third station are used for flying-shooting visual inspection, which mainly detects defects such as water grain pressure marks and film color pressure marks. The fourth station and the fifth station are used for stationary-shooting visual inspection, which detects defects such as pressing marks, inner film damage, outer film damage, knife damage, cracked edges, ink beads, demoulding points, whitening and dirty pressure marks. During stationary shooting, the lens needs to be driven to rotate slowly, so that defects such as scratches will present a shadow form under the irradiation of the linear light source. The irradiation angle of the linear light source is adjustable. Each lens is provided with a QR code, after inspection, the industrial code reader 16 scans the code to mark which lens is a qualified product and which is a defective product.

[0038] The lens loading and unloading device 2 comprises a material plate 202 provided with three material trays 201, one material tray 201 holds lenses to be inspected, one material tray 201 is used for holding qualified products, and one material tray 201 is used for holding unqualified products; the material plate 202 is driven by a first driving mechanism 203 arranged on the frame 1 to move horizontally along the X axis, a second driving mechanism 204 and a first bracket 205 driven by the second driving mechanism 204 to move horizontally along the Y axis are further arranged above the material plate 202, and a third driving mechanism 3, and a loading gripper 206 and a unloading gripper 207 driven by the third driving mechanism 3 to synchronously lift and lower are arranged on the first bracket 205.

[0039] The second drive mechanism 204 drives the first support 205 to move horizontally along the Y-axis, and the third drive mechanism 3 drives the loading gripper 206 and the unloading gripper 207 to rise and fall. Therefore, the lens on the material tray 201 can be driven to move in three dimensions.

[0040] Furthermore, both the first drive mechanism 203 and the second drive mechanism 204 are lead screw modules. The third drive mechanism 3 includes a third motor 301 and a synchronous pulley 302 and a synchronous belt driven by it. The slider on the synchronous belt drives the loading gripper 206 and the unloading gripper 207 to rise and fall along the slide rail. When the machine starts, the loading gripper 206 grabs the lens to be tested and places it on the first station. Then the turntable 5 rotates, moving the lens from the first station to the second station, and so on.

[0041] The first industrial camera 6 and the first high-brightness bowl-shaped light source 7 are height-adjustable and mounted on a second bracket, which is also mounted on the frame 1. A fourth drive mechanism 17 is provided on the second bracket to drive the first industrial camera 6 to rise and fall to adjust its height. The height of the first high-brightness bowl-shaped light source 7 is manually adjustable. The second industrial camera 8 and the second high-brightness bowl-shaped light source 9 are height-adjustable and mounted on a third bracket, which is also mounted on the frame 1. A fourth drive mechanism 17 is also provided on the third bracket to drive the second industrial camera 8 to rise and fall to adjust its height. The height of the second high-brightness bowl-shaped light source 9 is also manually adjustable. A fourth bracket, a fifth bracket, a sixth bracket, and a seventh bracket are also provided on the frame 1. The third industrial camera 10 is height-adjustable and mounted on the fourth bracket. The first line light source 11 is height-adjustable and mounted on the fifth bracket via a first manual fine-tuning component 18. The fourth industrial camera 13 and the second line light source 14 are also height-adjustable and mounted on the sixth bracket. The industrial barcode reader 16 is height-adjustable and mounted on the seventh bracket via another first manual fine-tuning component 18.

[0042] The fourth drive mechanism 17 is a lead screw module, and the angles of the first linear light source 11 and the second linear light source 14 are adjustable.

[0043] The frame 1 is provided with a plurality of second manual fine-tuning components 4 for adjusting the horizontal position of the third support, the fourth support, the fifth support, the sixth support and the seventh support respectively. The second manual fine-tuning component 4 includes an X adjustment knob 401 for fine-tuning along the X-axis and a Y adjustment knob 402 for fine-tuning along the Y-axis. After adjustment, it is locked by a locking knob.

[0044] Each station of the turntable 5 is equipped with a mounting plate assembly 19, on which a boss 20 is provided. The boss 20 has a countersunk hole 21 for placing the lens. The outer ring of the boss 20 has external teeth. Damping wheels 22 are fixedly connected to the output shafts of the first motor 12 and the second motor 15 to drive the boss 20 to rotate, thereby driving the lens to rotate. The damping wheels 22 also have external teeth that mate with the external teeth of the boss 20. The countersunk hole 21 is a through hole. The lens is placed inside the countersunk hole 21, and the damping wheel 22 drives the lens to rotate slowly, facilitating fixed-shot testing.

[0045] A photoelectric sensor 23 is provided on the first bracket 205 to detect whether there is a lens on the unloading gripper 207. When a lens is detected on the unloading gripper 207, it means that there is no lens on the first station, and the loading gripper 206 can put the lens on the first station.

[0046] The five-station divider includes a servo motor 25 mounted on the frame 1. The servo motor drives a worm gear structure to rotate the turntable 5. A hollow column 24 is mounted on the frame 1, passing through the central hole of the turntable 5. An eighth bracket is mounted on the hollow column 24. The first motor 12 and the second motor 15 are fixed on two different eighth brackets.

[0047] Additionally, an air purifier 26 is provided above the frame 1. The air purifier is a Class 100 FFU air purifier with high purification efficiency.

[0048] This utility model patent application relates to a device for lens vision inspection, the working process of which is as follows: The first drive mechanism 203 drives the material tray 201 to move horizontally along the X-axis to a suitable position. The third drive mechanism 3 and the second drive mechanism 204 drive the loading gripper 206 to pick up a lens from the material tray 201 containing the lens to be inspected and place it on the first station, specifically in the countersunk hole 21 of the mounting plate assembly 19.

[0049] The first industrial camera 6 is driven to rise and fall to a suitable height by the fourth drive mechanism 17, and the height of the first high-brightness bowl-shaped light source 7 is manually adjusted by the first manual fine-tuning component 18. The lens to be inspected on the first station is moved to the second station, and the first industrial camera 6 on the second station takes a flying shot to inspect the lower part of the lens. At the same time, the loading gripper 206 grabs a new lens and places it on the first station. The horizontal position of the second industrial camera 8 is manually adjusted by another second manual fine-tuning component 4, and the second industrial camera 8 is driven to rise and fall to a suitable height by another fourth drive mechanism 17. The height of the second high-brightness bowl-shaped light source 9 is manually adjusted by another first manual fine-tuning component 18. The lens on the second station is moved to the third station, and the second industrial camera 8 on the third station takes a flying shot of the upper part of the lens for detection. The horizontal position of the third industrial camera 10 is manually adjusted by another second manual fine-tuning component 4, and its height is then manually adjusted. After the lens on the third station is moved to the fourth station, the first motor 12 drives the damping wheel 22 to rotate, thereby driving the lens to rotate slowly. The third industrial camera 10 on the fourth station performs fixed-shot detection on the upper part of the lens under the illumination of the first linear light source 11. The horizontal position of the fourth industrial camera 13 is manually adjusted by another second manual fine-tuning component 4, and its height is then manually adjusted. After the lens on the fourth station is moved to the fifth station, the second motor 15 drives another damping wheel 22 to rotate, thereby causing the lens to rotate slowly. The fourth industrial camera 13 on the fifth station performs fixed-shot detection on the lower part of the lens under the illumination of the second linear light source 14. The industrial barcode reader 16 scans the QR code on the lens to mark qualified and unqualified products.

[0050] After the lens on the fifth station is moved to the first station, the unloading gripper 207 picks up the lens. After the photoelectric sensor 23 detects that the unloading gripper 207 has picked up the lens, the loading gripper 206, which is arranged side by side, will place the new lens picked up at the first station.

[0051] If the lens picked up by the unloading gripper 207 is a qualified product, it will be picked up and placed in the qualified product tray 201; if it is a defective product, it will be picked up and placed in the defective product tray 201.

[0052] Repeat the above steps.

[0053] This utility model provides a completely new and systematic solution. Its overall concept, workstation layout, combination of detection methods, and structural design are all different from the existing technology, and it brings about a qualitative leap in detection capability, efficiency, and accuracy. Therefore, it has outstanding substantive features and significant progress, and is creative.

[0054] 1. This invention solves a long-standing technical problem in existing technologies: Existing technologies, including the patents cited in the background, either rely on inefficient and highly subjective manual inspection or employ simple automated solutions such as "stationary lens, moving camera," resulting in numerous blind spots, poor accuracy, and efficiency bottlenecks. This invention is the first to propose integrating multiple methods on a single equipment platform, including "multi-station turntable," "upper and lower part coordination," "combination of flying and fixed shooting," and "lens rotation," systematically and comprehensively solving the problem of automated inspection of all lens specifications.

[0055] 2. Non-obviousness of the technical solution: Using a line light source on a rotating lens to enhance scratch detection is not common knowledge in the field of lens inspection. When faced with the problem of "how to detect minute scratches," those skilled in the art would readily think of increasing camera resolution or improving the brightness of ordinary light sources, but would hardly consider combining a specific type of line light source with the specific motion state of a rotating object to utilize optical physical properties to "create" the contrast of the defect. This combination produces a synergistic effect where "1+1 is far greater than 2," achieving unexpected technical results.

[0056] 3. Significant technical benefits have been achieved: This solution greatly enhances the comprehensiveness of inspection, covering defects of all sizes, with high-contrast imaging accuracy and fully automated production line efficiency—effects that cannot be achieved by existing single-technology methods. It directly replaces manual labor, solves pain points in the manufacturing industry, and possesses enormous potential commercial value.

[0057] The embodiments described herein are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the invention. Any modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the design concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A novel device for lens visual inspection, characterized in that: The system includes a frame (1), a turntable (5) driven by a five-station divider on the frame (1), five stations for placing lenses on the turntable (5), a lens loading and unloading device (2) on the first station, a first industrial camera (6) for inspecting the lower part of the lens and a first high-brightness bowl-shaped light source (7) for supplementary lighting on the second station, a second industrial camera (8) for inspecting the upper part of the lens and a second high-brightness bowl-shaped light source (9) for supplementary lighting on the third station, a third industrial camera (10) for inspecting the upper part of the lens, a first line light source (11) for supplementary lighting and a first motor (12) for driving the lens to be inspected to rotate on the fourth station, and a fourth industrial camera (13) for inspecting the lower part of the lens, a second line light source (14) for supplementary lighting, a second motor (15) for driving the lens to rotate and an industrial barcode reader (16) for scanning the lens to mark whether it is a qualified product on the fifth station.

2. The novel device for lens visual inspection according to claim 1, characterized in that: The lens loading and unloading device (2) includes a material plate (202) with three material trays (201). One material tray (201) is used to load lenses to be inspected, one material tray (201) is used to load qualified products, and one material tray (201) is used to load unqualified products. The material plate (202) is driven to move horizontally along the X-axis by the first drive mechanism (203) on the frame (1). Above the material plate (202) is a second drive mechanism (204) and a first support (205) driven to move horizontally along the Y-axis by the second drive mechanism (204). On the first support (205) is a third drive mechanism (3) and a loading gripper (206) and a unloading gripper (207) driven to move synchronously up and down by the third drive mechanism (3).

3. The novel device for lens visual inspection according to claim 2, characterized in that: The first drive mechanism (203) and the second drive mechanism (204) are both lead screw modules, and the third drive mechanism (3) includes a third motor (301) and a synchronous pulley (302) and a synchronous belt driven by it.

4. The novel device for lens visual inspection according to claim 1, characterized in that: The first industrial camera (6) and the first high-brightness bowl-shaped light source (7) are height-adjustable and are mounted on the second bracket. The second bracket is mounted on the frame (1). The second bracket is provided with a fourth drive mechanism (17) for driving the first industrial camera (6) to rise and fall to adjust its height. The second industrial camera (8) and the second high-brightness bowl-shaped light source (9) are height-adjustable and are mounted on the third bracket. The third bracket is mounted on the frame (1). The third bracket is also provided with a fourth drive mechanism (17) for driving the second industrial camera (8) to rise and fall to adjust its height. The frame (1) is also provided with a fourth bracket, a fifth bracket, a sixth bracket, and a seventh bracket. The third industrial camera (10) is height-adjustable and is mounted on the fourth bracket. The first line light source (11) is height-adjustable and is mounted on the fifth bracket via a first manual fine-tuning component (18). The fourth industrial camera (13) and the second line light source (14) are also height-adjustable and are mounted on the sixth bracket. The industrial barcode reader (16) is height-adjustable and is mounted on the seventh bracket via a first manual fine-tuning component (18).

5. The novel device for lens visual inspection according to claim 4, characterized in that: The frame (1) is provided with a plurality of second manual fine-tuning components (4) for adjusting the horizontal position of the third support, the fourth support, the fifth support, the sixth support and the seventh support respectively. The second manual fine-tuning components (4) include an X adjustment knob (401) for fine-tuning along the X-axis and a Y adjustment knob (402) for fine-tuning along the Y-axis.

6. The novel device for lens visual inspection according to claim 1, characterized in that: An air purifier (26) is provided above the frame (1).

7. The novel device for lens visual inspection according to claim 1, characterized in that: Each station of the turntable (5) is provided with a mounting plate assembly (19), and a boss (20) is provided on the mounting plate assembly (19). A countersunk hole (21) for placing the lens is provided on the boss (20). The outer ring of the boss (20) is provided with external teeth. The output shafts of the first motor (12) and the second motor (15) are both fixedly connected with damping wheels (22) for driving the boss (20) to rotate and thus driving the lens to rotate. The damping wheels (22) are also provided with external teeth that cooperate with the external teeth of the boss (20).

8. The novel device for lens visual inspection according to claim 2, characterized in that: A photoelectric sensor (23) is provided on the first bracket (205) for detecting whether there is a lens on the unloading gripper (207).

9. The novel device for lens visual inspection according to claim 1, characterized in that: The five-station divider includes a servo motor (25) mounted on the frame (1), a hollow column (24) passing through the central hole of the turntable (5) on the frame (1), an eighth bracket on the hollow column (24), and the first motor (12) and the second motor (15) fixed on two different eighth brackets.

10. The novel device for lens visual inspection according to claim 4, characterized in that: The fourth drive mechanism (17) is a lead screw module.

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