Detection equipment for appearance defect detection of new material lens

Abstract

The invention discloses detection equipment for appearance defect detection of a new material lens, and relates to the field of lens detection.The detection equipment comprises a detection box, a lens conveyor used for conveying a lens body is installed on the detection box, and a first mechanical arm used for transferring the lens body to a transfer mechanism is arranged on the rear side of the lens conveyor; the left side of the transfer mechanism is provided with a second manipulator used for transferring the lens body on the transfer mechanism to the non-defective product conveyor and the defective product conveyor, and the second manipulator, the non-defective product conveyor and the defective product conveyor are all installed on the detection box. According to the detection equipment for appearance defect detection of the new material lens, through cooperative cooperation of the transfer mechanism and the cleaning mechanism, a lens body can rotate in the cleaning mechanism in the transfer process, dust and impurities attached to the outer surface are effectively removed through dynamic friction or the airflow effect, and the problem that pollutants are left in a traditional static cleaning mode is solved; therefore, the accuracy of subsequent appearance defect detection is obviously improved.

Description

Technical Field

[0001] This invention relates to the field of lens inspection technology, specifically to a new material lens appearance defect detection device. Background Technology

[0002] The camera lens is the most important component of a camera, and its quality directly affects the quality of the image captured. After the camera lens is manufactured, in order to ensure the production quality of the camera lens, it is necessary to inspect the appearance of the camera lens for defects. Existing lens inspection devices, such as the AOI inspection equipment for lens appearance defect detection disclosed in CN119738415B, include a housing, a loading suction cup, and a turntable, as well as a camera, a sealing assembly, and a baffle assembly. The camera is connected inside the housing and located above the turntable. The sealing assembly is connected to the camera, and the baffle assembly is connected to the turntable and cooperates with the sealing assembly to seal the camera. The baffle assembly moves the inspection lens and opens the sealing assembly, forming a sealed space. This invention, by setting up a sealing assembly, seals the bottom of the camera with a first rotating plate and a second rotating plate when not in use, thereby preventing dust from contaminating the camera lens during storage. Furthermore, the second rotating plate contacts the front and rear baffles, keeping the lens in a sealed space and preventing external light sources from affecting the inspection results. The aforementioned lens inspection device also has the following drawbacks in actual use: 1. Lenses are prone to attracting dust or particulate matter during transportation. If they are not cleaned effectively, the residual impurities may interfere with the subsequent test results. Existing cleaning methods are mostly static blowing or wiping, which are difficult to completely remove the attachments on the outer surface of the lens, especially the curved areas, resulting in a decrease in the accuracy of the test data. 2. Conventional testing equipment mostly uses industrial cameras with a single fixed angle, which can only capture defects at a specific angle of the lens. It is difficult to simultaneously acquire appearance information from multiple directions, such as the upper surface and the outer surface. Although some equipment adjusts the camera position through robotic arms, there are problems such as large positioning errors and low efficiency, which affect the consistency of testing and production efficiency. In addition, multiple clamping can also cause secondary contamination and impact damage, further affecting the accuracy of the test data. Summary of the Invention

[0003] The purpose of this invention is to provide a new type of detection device for detecting defects in the appearance of lens materials, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a new material lens appearance defect detection device, comprising a detection box, a lens conveyor for conveying the lens body is installed on the detection box, a first robotic arm for transferring the lens body to a transfer mechanism is provided on the rear side of the lens conveyor, and a second robotic arm for transferring the lens body on the transfer mechanism to a good product conveyor and a defective product conveyor is provided on the left side of the transfer mechanism, wherein the second robotic arm, the good product conveyor, and the defective product conveyor are all installed on the detection box; A transfer mechanism is used to intermittently transport the lens body for testing; the transfer mechanism is installed inside the testing box. A cleaning mechanism is used in conjunction with a transfer mechanism to rotate the lens body for cleaning and impurity removal; the cleaning mechanism is installed inside the testing box. The testing mechanism utilizes a rotating and lifting mechanism to perform a comprehensive inspection of the lens body; the testing mechanism is installed inside the testing box.

[0005] Preferably, the transfer mechanism includes a servo motor fixed inside the testing box, and a turntable that rotates 45° each time is mounted on the servo motor. A rotating shaft is connected to the turntable by an equal-angle bearing, and a positioning seat is fixed on the rotating shaft. The positioning seat and the lens body are nested together, and the lens body is positioned by contacting a rubber fastening strip fixed inside the positioning seat. A first gear is also fixed on the rotating shaft. Through the cooperation of the positioning seat and the rubber fastening strip, the lens body can be installed and positioned, thereby ensuring the stability of the lens body in the subsequent testing process.

[0006] Preferably, the cleaning mechanism includes a bracket fixed inside the testing box, and a fixed cover is fixed on the bracket. The fixed cover slides in contact with the turntable. At the same time, a soft wiping pad with a "U" shaped cross-section is installed inside the fixed cover. The soft wiping pad contacts the lens body to achieve the cleaning function. Through the action of the soft wiping pad, the outer surface of the lens body can be automatically wiped, thereby avoiding the adhesion of dust and debris on the surface of the lens body and affecting the accuracy of the testing data.

[0007] Preferably, the fixed cover is fixed to one end of the support rod, and the other end of the support rod is fixed to the toothed ring. The toothed ring meshes with the first gear to achieve transmission. Through the transmission between the toothed ring and the first gear, a basic force can be provided for the rotation of the lens body, thereby providing a basic guarantee for the comprehensive cleaning of the lens body surface.

[0008] Preferably, the detection mechanism includes a cylinder fixed inside the detection box, and a fixed plate is fixed to the output end of the cylinder. A light shield is provided below the fixed plate, and vertical rods are symmetrically fixed on the light shield. The vertical rods are slidably connected to the fixed plate, and a spring is fixed between the fixed plate and the light shield. Through the sliding guiding action between the vertical rods and the fixed plate, the stability of the movement of the light shield can be ensured. Combined with the elastic action of the spring, a basic force can be provided for the automatic reset of the light shield.

[0009] Preferably, the fixing plate is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the rack. The rack and the guide rod are slidably connected, and the guide rod is fixed to the light shield. Through the transmission action of the connecting rod, a basic force can be provided for the movement of the rack. Combined with the sliding guidance action between the rack and the guide rod, the stability of the rack movement can be ensured.

[0010] Preferably, the rack meshes with the second gear to achieve transmission, and the second gear rotates 180° each time. The second gear is fixed on the hollow shaft, and the hollow shaft bearing is connected to the sunshade. Through the transmission action between the rack and the second gear, a basic force can be provided for the rotation of the hollow shaft.

[0011] Preferably, a mounting bracket is symmetrically fixed on the hollow shaft, and a slider is slidably connected to the mounting bracket. A first industrial camera is fixed on the slider, and a convex shaft is also fixed on the slider. The convex shaft is slidably connected to the arc-shaped groove opened in the light shield. The hollow shaft drives the mounting bracket to rotate, and with the sliding action between the convex shaft and the arc-shaped groove, the first industrial camera can rotate and rise synchronously, thereby providing a basic guarantee for realizing comprehensive inspection of the side of the lens body.

[0012] Preferably, the light shield is also fixed with a fixing frame, and the fixing frame contacts the fixing plate to achieve positioning. The fixing frame is fixed with a mounting shaft that passes through the second gear and the hollow shaft. At the same time, a second industrial camera is fixed at the lower end of the mounting shaft. The second industrial camera is used to detect the upper surface of the lens body.

[0013] Preferably, a lamp holder is mounted on the mounting shaft, and a supplementary light is mounted on the lamp holder. The supplementary light is electrically connected to a control switch fixed on the light shield. With the above structure, automatic supplementary lighting can be achieved during detection to ensure the normal operation of the detection.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This new material lens appearance defect detection equipment, through the coordinated operation of the transfer mechanism and the cleaning mechanism, allows the lens body to rotate inside the cleaning mechanism during the transfer process. The dynamic friction or airflow effectively removes dust and impurities attached to the outer surface, avoiding the problem of residual contaminants in traditional static cleaning methods. This significantly improves the accuracy of subsequent appearance defect detection. Furthermore, by integrating cleaning and detection functions into the same equipment, the number of lens transfers and repeated clamping is reduced, the need for manual intervention is reduced, secondary contamination or handling damage is avoided, and the detection process is optimized to improve overall production efficiency. 2. The new material lens appearance defect detection equipment adopts a fixed second industrial camera and a rotatable and liftable first industrial camera to work together. It can simultaneously acquire images of the upper and outer surfaces of the lens body, realize multi-directional and blind-angle detection, avoid the missed detection problem caused by traditional single-angle detection, ensure that appearance defects (such as scratches, bubbles, uneven coating, etc.) are accurately identified, and guarantee the accuracy of detection data. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional structural diagram of the device of the present invention; Figure 2 This is a bottom-view three-dimensional structural diagram of the transfer mechanism and cleaning mechanism of the present invention; Figure 3 This is a cross-sectional three-dimensional structural diagram of the positioning base and lens body of the present invention; Figure 4 This is a bottom-view three-dimensional structural diagram of the cleaning mechanism of the present invention; Figure 5 This is a rear-view three-dimensional structural diagram of the detection mechanism of the present invention; Figure 6 This is a bottom-view three-dimensional structural diagram of the detection mechanism of the present invention; Figure 7 This is a frontal cross-sectional three-dimensional structural diagram of the detection mechanism of the present invention.

[0016] In the diagram: 1. Inspection box; 2. Lens conveyor; 3. First robotic arm; 4. Transfer mechanism; 401. Servo motor; 402. Turntable; 403. Rotating shaft; 404. Positioning seat; 405. Rubber fastening strip; 406. First gear; 5. Cleaning mechanism; 501. Bracket; 502. Fixing cover; 503. Soft wiping pad; 504. Support rod; 505. Gear ring; 6. Inspection mechanism; 601. Cylinder; 602. Fixing plate; 603. Light shield; 604. Vertical rod; 605. 606. Spring; 607. Connecting rod; 608. Rack; 609. Guide rod; 610. Second gear; 611. Hollow shaft; 612. Mounting bracket; 613. Slider; 614. First industrial camera; 615. Convex shaft; 616. Arc groove; 617. Fixing bracket; 618. Mounting shaft; 619. Second industrial camera; 620. Lamp holder; 621. Fill light; 622. Control switch; 7. Second robotic arm; 8. Good product conveyor; 9. Defective product conveyor; 10. Lens body. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-7 The present invention provides a technical solution: a new material lens appearance defect detection device, including a detection box 1, a lens conveyor 2 for conveying the lens body 10 is installed on the detection box 1, a first robot arm 3 for transferring the lens body 10 to a transfer mechanism 4 is provided on the rear side of the lens conveyor 2, and a second robot arm 7 for transferring the lens body 10 on the transfer mechanism 4 to a good product conveyor 8 and a defective product conveyor 9 is provided on the left side of the transfer mechanism 4, and the second robot arm 7, the good product conveyor 8, and the defective product conveyor 9 are all installed on the detection box 1; The transfer mechanism 4 is used to intermittently transport the lens body 10 for testing. The transfer mechanism 4 is installed inside the testing box 1. The cleaning mechanism 5 is used in conjunction with the transfer mechanism 4 to rotate the lens body 10 for cleaning and removing dust and impurities. The cleaning mechanism 5 is installed inside the inspection box 1. The testing mechanism 6 uses rotation and lifting to perform a comprehensive inspection of the lens body 10. The testing mechanism 6 is installed inside the testing box 1.

[0019] The transfer mechanism 4 includes a servo motor 401 fixed inside the inspection box 1, and a turntable 402 that rotates 45° each time is mounted on the servo motor 401. A rotating shaft 403 is connected to the turntable 402 via angle bearings. A positioning seat 404 is fixed on the rotating shaft 403. The positioning seat 404 and the lens body 10 are nested together, and the lens body 10 is positioned by contacting a rubber fastening strip 405 fixed inside the positioning seat 404. A first gear 406 is also fixed on the rotating shaft 403. (Cleaning machine) The structure 5 includes a bracket 501 fixed inside the detection box 1, and a fixing cover 502 fixed on the bracket 501. The fixing cover 502 slides in contact with the turntable 402. At the same time, a soft wiping pad 503 with a "U" shaped cross section is installed inside the fixing cover 502. The soft wiping pad 503 contacts the lens body 10 to achieve a cleaning function. The fixing cover 502 is fixed to one end of the support rod 504, and the other end of the support rod 504 is fixed to the gear ring 505. The gear ring 505 meshes with the first gear 406 to achieve transmission. When using the inspection equipment for detecting defects in the appearance of lenses made of this new material, such as Figures 1-7 As shown, the produced lens body 10 is conveyed into the inspection box 1 via the lens conveyor 2. The first robotic arm 3 transfers the lens body 10 from the lens conveyor 2, allowing it to nest with the positioning seat 404. The rubber fastening strip 405 further ensures the stability of the lens body 10 installation. After one lens body 10 is installed, the servo motor 401 drives the turntable 402 to rotate counterclockwise by 45° and then stops, facilitating the installation of the next lens body 10. Based on this principle, multiple lens bodies 10 can be installed continuously. During the intermittent rotation of the turntable 402 to convey the lens body 10, when the lens body 10 contacts the soft rubbing pad 503, the soft rubbing pad 503... The sliding action between the 03 and the lens body 10 can wipe away dust and debris on the surface of the lens body 10, ensuring that the surface of the lens body 10 is clean. During the rotation of the turntable 402, the meshing transmission between the gear ring 505 and the first gear 406 can drive the positioning seat 404 and the lens body 10 to rotate. At this time, due to the large friction between the lens body 10 and the rubber fastening strip 405, the lens body 10 and the positioning seat 404 maintain a relative position. That is, the positioning seat 404 and the lens body 10 rotate synchronously. Through the rotation of the lens body 10 and the contact and sliding of the soft wiping pad 503, the outer surface of the lens body 10 can be thoroughly wiped and cleaned, ensuring that the surface of the lens body 10 is clean. The testing mechanism 6 includes a cylinder 601 fixed inside the testing box 1, with a fixed plate 602 fixed to the output end of the cylinder 601. A light shield 603 is provided below the fixed plate 602, and vertical rods 604 are symmetrically fixed on the light shield 603. The vertical rods 604 are slidably connected to the fixed plate 602, and a spring 605 is fixed between the fixed plate 602 and the light shield 603. The fixed plate 602 is rotatably connected to one end of a connecting rod 606, and the other end of the connecting rod 606 is rotatably connected to a rack 607. The rack 607 is slidably connected to a guide rod 608, and the guide rod 608 is fixed to the light shield 603. The rack 607 meshes with a second gear 609 to achieve transmission, and the second gear 609 rotates 180° each time. The second gear 609 is fixed to a hollow shaft 610, and the hollow shaft 610 is supported by bearings. A mounting bracket 611 is symmetrically fixed on the hollow shaft 610, and a slider 612 is slidably connected to the mounting bracket 611. A first industrial camera 613 is fixed on the slider 612, and a convex shaft 614 is also fixed on the slider 612. The convex shaft 614 is slidably connected to the arc-shaped groove 615 opened in the light shield 603. A fixing bracket 616 is also fixed on the light shield 603, and the fixing bracket 616 contacts the fixing plate 602 for positioning. A mounting shaft 617 that passes through the second gear 609 and the hollow shaft 610 is fixed on the fixing bracket 616, and a second industrial camera 618 is fixed at the lower end of the mounting shaft 617. A lamp holder 619 is installed on the mounting shaft 617, and a supplementary light 620 is installed on the lamp holder 619. The supplementary light 620 is electrically connected to the control switch 621 fixed on the light shield 603. After cleaning the surface of the lens body 10, as follows Figures 1-7As shown, when the turntable 402 rotates intermittently, moving the lens body 10 directly below the light shield 603, the cylinder 601 is activated, causing the fixing plate 602 and the light shield 603 to move downwards. When the light shield 603 contacts the turntable 402, it achieves a positioning function, placing the lens body 10 under inspection within the sealed space of the light shield 603, effectively preventing the influence of external light. At this time, the control switch 621 simultaneously contacts the turntable 402 and controls the supplementary light 620 to turn on, achieving a supplementary lighting function. Furthermore, the second industrial camera 618 can inspect the appearance of the upper surface of the lens body 10, and the first industrial camera 613 can inspect the lens body. 10. Side appearance inspection: When the sunshade 603 contacts the turntable 402, the cylinder 601 continues to extend, causing the fixed plate 602 to move downward relative to the sunshade 603. The spring 605 contracts under pressure. As the fixed plate 602 moves downward relative to the sunshade 603, the transmission action of the connecting rod 606 causes the rack 607 to move under force. The sliding guidance between the rack 607 and the guide rod 608 ensures the stability of the rack 607's movement. Furthermore, the meshing transmission between the rack 607 and the second gear 609 causes the hollow shaft 610 to rotate under force, thus synchronously driving the fixed frame 616 forward. The rotation of the slide block 612 causes the slider 612 and the first industrial camera 613 to rotate. During this rotation, the sliding action between the convex shaft 614 and the arc-shaped groove 615 causes the convex shaft 614 and the first industrial camera 613 to move downwards synchronously. This rotation and downward movement of the first industrial camera 613 enables comprehensive inspection of the outer surface of the lens body 10, ensuring the accuracy of the inspection data. After inspection, the retraction of the cylinder 601 resets the first industrial camera 613 and the second industrial camera 618 for the next inspection. During the reset process, when the control switch 621 separates from the turntable 402, it can achieve… The automatic shut-off of the supplementary light 620 avoids increased power consumption caused by the constant illumination of the supplementary light 620. The lens body 10, after inspection, continues to move under the rotation of the turntable 402. When the inspected lens body 10 moves to the position of the second robotic arm 7, if the inspection data indicates that the lens body 10 is a good product, the second robotic arm 7 transfers the lens body 10 to the good product conveyor 8 for outward transport. If the inspection data indicates that the lens body 10 is a defective product, the second robotic arm 7 transfers the lens body 10 to the defective product conveyor 9 for outward transport, so as to facilitate the subsequent classification and collection of good and defective products. This is the working principle of the inspection equipment for detecting appearance defects in lenses made of new materials.

[0020] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A new material lens appearance defect detection device, comprising a detection box (1), characterized in that: The inspection box (1) is equipped with a lens conveyor (2) for conveying the lens body (10). A first robotic arm (3) for transferring the lens body (10) to the transfer mechanism (4) is provided on the rear side of the lens conveyor (2). A second robotic arm (7) for transferring the lens body (10) on the transfer mechanism (4) to the good product conveyor (8) and the defective product conveyor (9) is provided on the left side of the transfer mechanism (4). The second robotic arm (7), the good product conveyor (8), and the defective product conveyor (9) are all installed on the inspection box (1). A transfer mechanism (4) is used to intermittently transport the lens body (10) for testing. The transfer mechanism (4) is installed inside the testing box (1). The cleaning mechanism (5) is used in conjunction with the transfer mechanism (4) to rotate the lens body (10) for cleaning and removing impurities. The cleaning mechanism (5) is installed inside the testing box (1). The testing mechanism (6) performs a comprehensive inspection of the lens body (10) by rotating and lifting. The testing mechanism (6) is installed inside the testing box (1). The detection mechanism (6) includes a cylinder (601) fixed inside the detection box (1), and a fixing plate (602) is fixed to the output end of the cylinder (601). A light shield (603) is provided below the fixing plate (602), and vertical rods (604) are symmetrically fixed on the light shield (603). The vertical rods (604) are slidably connected to the fixing plate (602), and a fixing plate (602) is also fixed to the light shield (603). Spring (605); the fixed plate (602) is rotatably connected to one end of the connecting rod (606), and the other end of the connecting rod (606) is rotatably connected to the rack (607), and the rack (607) is slidably connected to the guide rod (608), while the guide rod (608) is fixed to the sunshade (603); the rack (607) meshes with the second gear (609) to achieve transmission, and the second gear (609) rotates by an angle of 10° each time. 180°, and the second gear (609) is fixed on the hollow shaft (610), while the hollow shaft (610) is bearing connected to the light shield (603); the hollow shaft (610) is symmetrically fixed with mounting brackets (611) on the left and right, and a slider (612) is slidably connected on the mounting bracket (611), and a first industrial camera (613) is fixed on the slider (612), while a convex shaft (614) is also fixed on the slider (612), the convex shaft (614) is slidably connected to the arc groove (615) opened in the light shield (603); a fixing frame (616) is also fixed on the light shield (603), and the fixing frame (616) contacts the fixing plate (602) to achieve positioning, and a mounting shaft (617) that passes through the second gear (609) and the hollow shaft (610) is fixed on the fixing frame (616), and a second industrial camera (618) is fixed at the lower end of the mounting shaft (617).

2. The detection equipment for detecting appearance defects in new material lenses according to claim 1, characterized in that: The transfer mechanism (4) includes a servo motor (401) fixed inside the detection box (1), and a turntable (402) that rotates 45° each time is installed on the servo motor (401). A rotating shaft (403) is connected to the turntable (402) by an equal angle bearing. A positioning seat (404) is fixed on the rotating shaft (403). The positioning seat (404) and the lens body (10) are nested together. The lens body (10) is positioned by contacting the rubber fastening strip (405) fixed inside the positioning seat (404). A first gear (406) is also fixed on the rotating shaft (403).

3. The detection equipment for detecting appearance defects in new material lenses according to claim 2, characterized in that: The cleaning mechanism (5) includes a bracket (501) fixed inside the detection box (1), and a fixing cover (502) is fixed on the bracket (501). The fixing cover (502) slides in contact with the turntable (402). At the same time, a soft wiping pad (503) with a "U" shaped cross section is installed inside the fixing cover (502). The soft wiping pad (503) contacts the lens body (10) to achieve the cleaning function.

4. The detection device for detecting appearance defects in a new material lens according to claim 3, characterized in that: The fixed cover (502) is fixed to one end of the support rod (504), and the other end of the support rod (504) is fixed to the toothed ring (505). The toothed ring (505) meshes with the first gear (406) to achieve transmission.

5. The detection device for detecting appearance defects in a new material lens according to claim 1, characterized in that: A lamp holder (619) is mounted on the mounting shaft (617), and a fill light (620) is mounted on the lamp holder (619). The fill light (620) is electrically connected to a control switch (621) fixed on the light shield (603).

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