A visual detection module and method based on a double-deck screening machine

Abstract

The application relates to a visual detection module and method based on a double-disk screening machine, and relates to the technical field of visual detection of double-disk screening machines. The visual detection module comprises a mounting frame and an upper-view adjusting assembly, a support is fixed to the upper end of the mounting frame, the upper-view adjusting assembly comprises a support, a bidirectional telescopic rod is vertically fixed to one side of the support, a transmission plate is fixedly connected to the output end of the bidirectional telescopic rod, transmission rods are fixedly connected to the lower ends of the transmission plate on the two sides, the transmission rods are movably penetrated through the mounting frame, and the lower ends of the transmission rods are fixedly connected with a ring-shaped lamp. The bidirectional telescopic rod is used as a power source, the upper-view camera and the ring-shaped lamp are reversely moved by the bidirectional telescopic rod, when the upper-view camera moves away from the workpiece, the ring-shaped lamp moves close to the workpiece, the switching of the upper-view detection bright field and dark field effects is realized, the side-view camera detection position changes with different diameters and heights of O-shaped rings, and the batch detection efficiency of the double-disk screening machine on the O-shaped rings is improved.

Description

Technical Field

[0001] This invention relates to the field of visual inspection technology for dual-disc sorting machines, specifically to a visual inspection module and method based on a dual-disc sorting machine. Background Technology

[0002] In the semiconductor component manufacturing process, O-rings are key sealing components. Detecting defects on their surface and sidewalls is crucial for ensuring the operational stability of semiconductor equipment. Dual-disc screening machines, due to their efficient material conveying and screening capabilities, are widely used in batch inspection of O-rings. The accompanying vision inspection module is the core component for achieving automated defect identification of O-rings. By using top-view and side-view cameras in conjunction with a light source, defects on the upper surface and sidewalls of O-rings can be captured and judged. This is an important part of the semiconductor component quality inspection system.

[0003] In the visual inspection of O-rings using a dual-disc sorting machine, the O-rings to be inspected come in various diameters. The existing visual inspection module has low correlation between the top-view camera and the ring light adjustment; adjusting the position of any component will affect the lighting and shooting coordination of the other component. This makes it inconvenient to flexibly adjust the bright and dark field illumination effects according to different O-ring specifications, easily leading to insufficient contrast in the imaging of the upper surface of O-rings of different specifications. Simultaneously, the adjustment of the side-view camera's inspection position and the adjustment of the side-view light source's illumination angle are also independent. When adjusting the side-view camera position to accommodate O-rings of different diameters, the side-view light source angle must be adjusted separately, making it inconvenient for the two to be synchronized. This makes it difficult for the side-view camera to achieve distortion-free imaging of the O-ring sidewalls, effectively highlighting defects such as scratches and bubbles on the sidewalls. Furthermore, the step-by-step adjustment process of multiple components is cumbersome and time-consuming, affecting the overall inspection efficiency. To address these issues, an innovative design based on the existing system is urgently needed. Summary of the Invention

[0004] The purpose of this invention is to provide a visual inspection module and method based on a dual-disc screening machine to solve the problems mentioned in the background. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a visual inspection module and method based on a dual-disc screening machine, comprising a mounting frame and an upward adjustment component;

[0006] The upward-viewing adjustment component includes a bracket, which is fixed to the upper end of the mounting frame. A bidirectional telescopic rod is vertically fixedly installed on one side of the bracket. A transmission plate is fixedly connected to the upper output end of the bidirectional telescopic rod. Transmission rods are fixedly connected to both sides of the lower end of the transmission plate, and the transmission rods movably pass through the mounting frame. A ring light is fixedly connected to the lower end of the transmission rods, and an upward-viewing camera is fixedly connected to the lower output end of the bidirectional telescopic rod.

[0007] A side-view adjustment component is disposed at the lower end of the mounting bracket and is used to adjust the side-view distance;

[0008] A side-view light source adjustment component is provided, which is located at the lower end of the mounting bracket and is used to adjust the side-view light source.

[0009] Preferably, the side-view adjustment component includes a protrusion fixedly connected to the outer wall of the lower output end of the bidirectional telescopic rod, and a sleeve rotatably connected to the lower output end of the bidirectional telescopic rod. The inner wall of the sleeve is provided with a curved groove corresponding to the protrusion, and the protrusion is slidably connected to the curved groove.

[0010] Preferably, a transmission disc is fixedly connected to the outer wall of the sleeve, the transmission disc has a clearance groove corresponding to the transmission rod, a plurality of extrusion grooves are arrayed on the transmission disc, a support frame is fixedly installed on the mounting frame corresponding to the transmission disc, and an inclined guide rod is fixedly installed on the support frame corresponding to the plurality of extrusion grooves.

[0011] Preferably, each of the inclined guide rods has an adjusting rod slidably connected to its outer wall, the lower end of the adjusting rod passing through the extrusion groove, and a side-view camera is fixedly installed at the lower end of each adjusting rod.

[0012] Preferably, the side-view light source adjustment assembly includes a support block fixedly connected to the outer wall of the adjustment rod, and the support block is fixedly connected to the upper end of the side-view camera. A support spring is fixedly connected to the upper end of the support block, and the support spring is sleeved on the outer wall of the adjustment rod.

[0013] Preferably, a pressure block is fixedly connected to the upper end of the support spring, a pressure rod is fixedly connected to one side of the lower end of the pressure block, the lower end of the pressure rod movably passes through the support block, and a pressure shaft is fixedly connected to the lower end of the pressure rod.

[0014] Preferably, the adjusting rod is fixedly connected to a central shaft at the midpoint between the side-view camera and the support block, and transmission frames are fixedly connected to both sides of the central shaft. A side-view light is fixedly connected to one side of the transmission frames. The transmission frames are provided with a pressure groove corresponding to the pressure shaft, and the pressure groove is movably sleeved on the outer wall of the pressure shaft.

[0015] Preferably, the method includes the following steps:

[0016] S1: Based on the diameter specifications of the O-ring to be inspected, control the movement of the bidirectional telescopic rod to drive the upward-viewing camera to move upward and the ring light to move downward simultaneously, thereby changing the bright and dark field effects of the upward-viewing illumination and completing the specification adaptation of the upward-viewing inspection station.

[0017] S2: While the bidirectional telescopic rod moves, the sleeve is driven to rotate through the cooperation of the protrusion and the curved groove. The sleeve drives the transmission plate to rotate. The transmission plate pushes the adjusting rod to expand outward and rise along the inclined guide rod through the extrusion groove, so that the detection position of the side-view camera is adapted to the O-ring specification.

[0018] S3: During the upward movement of the adjusting rod, the support block moves upward synchronously. The pressure block is limited by the transmission disc to keep its height constant. The pressure shaft squeezes the groove relative to the pressure plate, causing the transmission frame to rotate around the central axis, which drives the illumination angle of the side-view lamp to rotate upward, matching the detection position and height of the side-view camera.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention uses a bidirectional telescopic rod as a power source. The bidirectional telescopic rod drives the upward-looking camera and the ring light to move in opposite directions. When the upward-looking camera moves away from the workpiece, the ring light moves closer to the workpiece, realizing the switching between bright field and dark field effects of the upward-looking inspection. This completes the adaptation of the upward-looking inspection station to the O-ring specifications. At the same time, the bidirectional telescopic rod, in conjunction with the sleeve and transmission disc, rotates, pushing the adjusting rod to expand outward and move upward along the inclined guide rod, causing the side-looking camera to move synchronously. The inspection position of the side-looking camera changes according to O-rings of different diameters and heights. There is no need to independently adjust each component, simplifying the adaptation process before inspection, reducing manual operation time, and effectively improving the batch inspection efficiency of the double-disc screening machine for O-rings.

[0021] 2. This invention utilizes the outward expansion and upward movement of the adjusting rod along the inclined guide rod to drive the support block to move upward synchronously. Meanwhile, the pressure block is kept at a fixed height by the transmission disc, causing the pressure shaft to press against the pressure groove on the transmission frame. This drives the transmission frame to rotate around the central axis, thereby synchronously adjusting the illumination angle of the side-view lamp. When the side-view camera expands outward and moves upward according to the O-ring specifications, the side-view lamp illuminates the O-ring sidewall with direct light. The concentrated intensity of the direct light creates a high-brightness illumination effect, resulting in uniform illumination and clear contrast on the sidewall surface, improving the image recognition of surface details. When it shrinks inward and moves downward, it illuminates with diffused light. The diffused light has a softer intensity and a wider light range, creating a diffuse reflection illumination effect. This effectively weakens the reflection interference on the sidewall surface, making the overall illumination of the sidewall softer and more uniform. Simultaneously, the lens axis of the side-view camera is always perpendicular to the tangent of the O-ring sidewall, achieving distortion-free imaging and avoiding misjudgments or missed judgments of defects caused by imaging distortion, significantly improving the accuracy of O-ring sidewall defect identification. Attached Figure Description

[0022] Figure 1This is a front view of the overall structure of the present invention;

[0023] Figure 2 This is a side view of the overall structure of the present invention;

[0024] Figure 3 For the present invention Figure 1 A schematic diagram of a partial structure;

[0025] Figure 4 This is a schematic diagram of the structure of the upward adjustment component of the present invention;

[0026] Figure 5 This is a first cross-sectional view of the sleeve structure of the present invention;

[0027] Figure 6 This is a second sectional view of the sleeve structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the side-view light source adjustment component structure of the present invention;

[0029] Figure 8 For the present invention Figure 7 A partial structural diagram.

[0030] In the diagram: 1. Mounting bracket; 201. Support; 202. Bidirectional telescopic rod; 203. Transmission plate; 204. Transmission rod; 205. Ring light; 206. Top-view camera; 301. Protrusion; 302. Sleeve; 303. Curved groove; 304. Transmission disc; 305. Clearance groove; 306. Extrusion groove; 307. Support frame; 308. Inclined guide rod; 309. Adjusting rod; 310. Side-view camera; 401. Support block; 402. Support spring; 403. Pressure block; 404. Pressure rod; 405. Pressure shaft; 406. Central shaft; 407. Transmission frame; 408. Side-view light; 409. Pressure groove. Detailed Implementation

[0031] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0032] Please see Figures 1-8 The present invention provides a technical solution: a visual inspection module and method based on a dual-disc screening machine, including a mounting frame 1 and an upward adjustment component.

[0033] In one embodiment of the present invention, the upward viewing adjustment assembly includes a bracket 201, which is fixed to the upper end of the mounting frame 1. A bidirectional telescopic rod 202 is vertically fixedly installed on one side of the bracket 201. A transmission plate 203 is fixedly connected to the upper output end of the bidirectional telescopic rod 202. Transmission rods 204 are fixedly connected to both sides of the lower end of the transmission plate 203, and the transmission rods 204 movably pass through the mounting frame 1. A ring light 205 is fixedly connected to the lower end of the transmission rods 204, and an upward viewing camera 206 is fixedly connected to the lower output end of the bidirectional telescopic rod 202. A side viewing adjustment assembly is disposed at the lower end of the mounting frame 1 and is used to adjust the side viewing distance. A side viewing light source adjustment assembly is disposed at the lower end of the mounting frame 1 and is used to adjust the side viewing light source.

[0034] Activate the bidirectional telescopic rod 202. The upper output end of the bidirectional telescopic rod 202 retracts downward, and the lower output end retracts upward. The upper output end of the bidirectional telescopic rod 202 drives the transmission plate 203 to move downward. The transmission plate 203 drives the transmission rods 204 on both sides to slide downward along the mounting bracket 1. The transmission rods 204 drive the ring light 205 to move downward synchronously. At the same time, the lower output end of the bidirectional telescopic rod 202 directly drives the upward-viewing camera 206 to move upward. When the upward-viewing camera 206 moves upward, it switches to dark field illumination mode to adapt to the detection of defects on the upper surface of O-rings with larger diameters and thicknesses. When the upward-viewing camera 206 moves downward, it switches to bright field illumination mode to enhance the contrast between the defects on the upper surface of the O-ring and the background. The two modes achieve precise switching between bright field and dark field for upward-viewing detection. The upward movement distance of the upward-viewing camera 206 and the downward movement of the ring light 205 match the diameter specification of the O-ring to be inspected, completing the adaptation of the shooting focal length, lighting angle, and illumination mode of the upward-viewing detection station, ensuring the clarity of the upward-viewing visual inspection of O-rings of different specifications.

[0035] The bidirectional telescopic rod 202 serves as the power source, and the transmission plate 203 enables the synchronous transmission of power at the upper output end. This drives the transmission rods 204 on both sides to slide vertically along the mounting frame 1. This not only allows for the relative position adjustment of the ring light 205 and the upward-viewing camera 206, enabling the switching between bright and dark fields for upward-viewing inspection, but also ensures that the travel distance of the upward-viewing camera 206 and the ring light 205 matches the diameter of the O-ring to be inspected through precise control of the travel distance of the bidirectional telescopic rod 202. This provides suitable upward-viewing shooting and lighting positions for O-rings of different diameters.

[0036] As one embodiment of the present invention, the side-view adjustment assembly includes a protrusion 301 fixedly connected to the outer wall of the lower output end of the bidirectional telescopic rod 202. A sleeve 302 is rotatably connected to the lower output end of the bidirectional telescopic rod 202. A curved groove 303 is opened on the inner wall of the sleeve 302 corresponding to the protrusion 301. The protrusion 301 and the curved groove 303 are slidably connected. A transmission disk 304 is fixedly connected to the outer wall of the sleeve 302. A clearance groove 305 is opened on the transmission rod 204 corresponding to the transmission disk 204. A plurality of extrusion grooves 306 are arrayed on the transmission disk 304. A support frame 307 is fixedly installed on the mounting frame 1 corresponding to the transmission disk 304. An inclined guide rod 308 is fixedly installed on the support frame 307 corresponding to the plurality of extrusion grooves 306. An adjustment rod 309 is slidably connected to the outer wall of the inclined guide rod 308. The lower end of the adjustment rod 309 passes through the extrusion groove 306. A side-view camera 310 is fixedly installed on the lower end of the adjustment rod 309.

[0037] During the upward retraction of the lower output end of the bidirectional telescopic rod 202, the protrusion 301 on the outer wall moves upward synchronously. The upward movement of the protrusion 301 presses against the curved groove 303 on the inner wall of the sleeve 302. The linear movement of the protrusion 301 is converted into rotational power through the guidance of the curved groove 303, driving the sleeve 302 to rotate around the lower output end of the bidirectional telescopic rod 202 on the mounting bracket 1. The rotation of the sleeve 302 drives the transmission disc 304 fixed on the outer wall to rotate synchronously. When the transmission disc 304 rotates, the extrusion grooves 306 arrayed on its surface form an extrusion thrust on the through-hole adjusting rod 309, pushing the adjusting rod 309 along the support. The inclined guide rod 308 fixed on the frame 307 slides outward. The inclined structure of the inclined guide rod 308 causes the adjusting rod 309 to move upward synchronously while expanding outward. The adjusting rod 309 drives the side-view camera 310 at the lower end to expand outward and rise synchronously, so that the detection position of the side-view camera 310 is adapted to the diameter specification of the O-ring to be detected, and the lens axis of the side-view camera 310 is always perpendicular to the tangent of the side wall of the O-ring of different specifications, so as to achieve distortion-free imaging. The clearance groove 305 on the transmission disk 304 provides movement space for the transmission rod 204, and avoids interference between the rotation of the transmission disk 304 and the transmission rod 204.

[0038] The linear power from the lower output end of the bidirectional telescopic rod 202 is used as the driving force. The conversion of linear power to rotational power is completed through the sliding cooperation between the protrusion 301 and the curved groove 303, which drives the transmission disk 304 to rotate synchronously. That is, the squeezing force of the extrusion groove 306 on the adjusting rod 309 pushes the adjusting rod 309 to complete the synchronous action of outward expansion and upward movement along the inclined guide rod 308. The clearance groove 305 reserves space for the vertical movement of the transmission rod 204, avoiding mutual interference between transmission structures, and realizing the adaptation of the detection position of the side-view camera 310 to the O-ring diameter specification.

[0039] In one embodiment of the present invention, the side-view light source adjustment assembly includes a support block 401 fixedly connected to the outer wall of the adjustment rod 309, and the support block 401 is fixedly connected to the upper end of the side-view camera 310. A support spring 402 is fixedly connected to the upper end of the support block 401, and the support spring 402 is sleeved on the outer wall of the adjustment rod 309. A pressure block 403 is fixedly connected to the upper end of the support spring 402. A pressure rod 404 is fixedly connected to one side of the lower end of the pressure block 403. The lower end of the pressure rod 404 movably passes through the support block 401. A pressure shaft 405 is fixedly connected to the lower end of the pressure rod 404. A central shaft 406 is fixedly connected to the adjustment rod 309 at the middle of the side-view camera 310 and the support block 401. A transmission frame 407 is fixedly connected to both sides of the central shaft 406. A side-view light 408 is fixedly connected to one side of the transmission frame 407. A pressure groove 409 is opened on the transmission frame 407 corresponding to the pressure shaft 405, and the pressure groove 409 is movably sleeved on the outer wall of the pressure shaft 405.

[0040] As the adjusting rod 309 moves upward along the inclined guide rod 308, it drives the support block 401 fixed on the outer wall to move upward synchronously. The support block 401 drives the upper support spring 402 to move upward synchronously. The pressure block 403 at the upper end of the support spring 402 is unable to move upward with the adjusting rod 309 due to its contact with the lower end of the transmission disc 304 and the limiting effect of the transmission disc 304. This keeps the vertical positions of the pressure block 403, the pressure rod 404, and the pressure shaft 405 unchanged. The support block 401 moves upward relative to the pressure shaft 405, causing the pressure shaft 405 to exert a downward squeezing force on the pressure groove 409 on the transmission frame 407. The transmission frame 407 is squeezed. The rear axis 406 rotates, and the transmission frame 407 rotates, causing the side-view lamp 408, which is fixed on one side, to rotate synchronously. This matches the illumination angle of the side-view lamp 408 with the detection position of the side-view camera 310. When the side-view camera 310 expands outward, the side-view lamp 408 illuminates the O-ring sidewall with direct light, highlighting surface defects such as scratches and missing material. When the side-view camera 310 shrinks inward, the side-view lamp 408 illuminates the O-ring sidewall with diffused light, highlighting deeper defects such as bubbles and impurities inside the transparent O-ring sidewall. This effectively highlights the defect features of O-ring sidewalls of different specifications in the image, improving the imaging quality of side-view visual inspection. Throughout the process, the support spring 402 remains compressed, providing elastic support for the pressure block 403 and ensuring a tight fit between the pressure shaft 405 and the pressure groove 409, thus ensuring the accuracy and stability of the side-view lamp angle adjustment.

[0041] The vertical movement of the adjusting rod 309 serves as the power trigger condition. The relative displacement is formed by the mutual restraint between the pressure block 403 and the transmission disc 304, causing the pressure shaft 405 to exert a squeezing force on the pressure groove 409. This drives the transmission frame 407 to rotate around the central axis 406, achieving synchronous matching between the illumination angle of the side-view lamp 408 and the detection position of the side-view camera 310. Furthermore, the continuous elastic support of the support spring 402 ensures the tight abutment between the pressure block 403 and the transmission disc 304, ensuring that the squeezing fit between the pressure shaft 405 and the pressure groove 409 is always precise, thus ensuring the stability of the side-view lamp angle adjustment.

[0042] As one embodiment of the present invention, the method includes the following steps:

[0043] S1: Based on the diameter specifications of the O-ring to be inspected, control the movement of the bidirectional telescopic rod 202 to drive the upward camera 206 to move upward and the ring light 205 to move downward simultaneously, thereby changing the bright field and dark field effects of the upward illumination and completing the specification adaptation of the upward inspection station.

[0044] S2: While the bidirectional telescopic rod 202 moves, it drives the sleeve 302 to rotate through the cooperation of the protrusion 301 and the curved groove 303. The sleeve 302 drives the transmission disc 304 to rotate. The transmission disc 304 pushes the adjusting rod 309 to expand outward and rise along the inclined guide rod 308 through the extrusion groove 306, so that the detection position of the side-view camera 310 is adapted to the O-ring specification.

[0045] S3: During the upward movement of the adjusting rod 309, the support block 401 moves upward synchronously. The pressure block 403 is limited by the transmission disc 304 to keep its height unchanged. The pressure shaft 405 presses against the pressure groove 409, causing the transmission frame 407 to rotate around the central axis 406, which drives the illumination angle of the side-view lamp 408 to rotate upward, matching the detection position and height of the side-view camera 310.

[0046] Working principle:

[0047] Before positioning, the bidirectional telescopic rod 202 is activated. The upper output end of the bidirectional telescopic rod 202 retracts downward and the lower output end retracts upward. The upper output end of the bidirectional telescopic rod 202 drives the transmission plate 203 to move downward. The transmission plate 203 drives the transmission rods 204 on both sides to slide downward along the mounting bracket 1. The transmission rods 204 drive the ring light 205 to move downward synchronously. At the same time, the lower output end of the bidirectional telescopic rod 202 directly drives the upward-viewing camera 206 to move upward. When the upward-viewing camera 206 moves upward, it switches to dark field illumination mode to adapt to the detection of defects on the upper surface of O-rings with larger diameters and thicknesses. When the upward-viewing camera 206 moves downward, it switches to bright field illumination mode to enhance the contrast between the defects on the upper surface of the O-ring and the background. The two achieve precise switching between bright field and dark field for upward-viewing detection. The upward movement distance of the upward-viewing camera 206 and the downward movement of the ring light 205 match the diameter specifications of the O-ring to be inspected, completing the adaptation of the shooting focal length, lighting angle and illumination mode of the upward-viewing detection station, ensuring the clarity of the upward-viewing visual inspection of O-rings of different specifications.

[0048] During positioning, as the lower output end of the bidirectional telescopic rod 202 retracts upward, it synchronously drives the protrusion 301 on the outer wall to move upward. The upward movement of the protrusion 301 presses against the curved groove 303 on the inner wall of the sleeve 302. The linear movement of the protrusion 301 is converted into rotational power through the guidance of the curved groove 303, driving the sleeve 302 to rotate around the lower output end of the bidirectional telescopic rod 202 on the mounting bracket 1. The rotation of the sleeve 302 drives the transmission disc 304 fixed on the outer wall to rotate synchronously. When the transmission disc 304 rotates, the extrusion grooves 306 arrayed on its surface form an extrusion thrust on the through-mounted adjusting rod 309, pushing the adjusting rod 309 along... The inclined guide rod 308 fixed on the support frame 307 slides outward. The inclined structure of the inclined guide rod 308 causes the adjusting rod 309 to move upward synchronously while expanding outward. The adjusting rod 309 drives the side-view camera 310 at the lower end to expand outward and rise synchronously, so that the detection position of the side-view camera 310 is adapted to the diameter specification of the O-ring to be detected, and the lens axis of the side-view camera 310 is always perpendicular to the tangent of the side wall of the O-ring of different specifications, so as to achieve distortion-free imaging. The clearance groove 305 on the transmission plate 304 provides movement space for the transmission rod 204, and avoids interference between the rotation of the transmission plate 304 and the transmission rod 204.

[0049] After positioning, as the adjusting rod 309 moves upward along the inclined guide rod 308, it drives the support block 401 fixed on the outer wall to move upward synchronously. The support block 401 drives the upper support spring 402 to move upward synchronously. The pressure block 403 at the upper end of the support spring 402, due to its abutment against the lower end of the transmission disc 304, cannot move upward with the adjusting rod 309 due to the limiting effect of the transmission disc 304, thus keeping the vertical position of the pressure block 403, the pressure rod 404, and the pressure shaft 405 unchanged. The support block 401 moves upward relative to the pressure shaft 405, causing the pressure shaft 405 to exert a downward squeezing force on the pressure groove 409 on the transmission frame 407. The transmission frame 407 is subjected to After extrusion, the O-ring rotates around the central axis 406. The rotation of the transmission frame 407 drives the side-view lamp 408, which is fixed on one side, to rotate synchronously. This matches the illumination angle of the side-view lamp 408 with the detection position of the side-view camera 310. When the side-view camera 310 expands outward, the side-view lamp 408 illuminates the O-ring sidewall with direct light, highlighting surface defects such as scratches and missing material. When the side-view camera 310 shrinks inward, the side-view lamp 408 illuminates the O-ring sidewall with diffused light, highlighting deeper defects such as bubbles and impurities inside the transparent O-ring sidewall. This effectively highlights the defect features of O-ring sidewalls of different specifications in the image, improving the imaging quality of side-view visual inspection. Throughout the process, the support spring 402 remains compressed, providing elastic support for the pressure block 403 and ensuring a tight fit between the pressure shaft 405 and the pressure groove 409, thus ensuring the accuracy and stability of the side-view lamp angle adjustment.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A visual inspection module based on a dual-disc screening machine, comprising a mounting bracket (1) and an upward adjustment assembly, characterized in that: The upward viewing adjustment component includes a bracket (201), which is fixed to the upper end of the mounting frame (1). A bidirectional telescopic rod (202) is vertically fixed on one side of the bracket (201). A transmission plate (203) is fixedly connected to the upper output end of the bidirectional telescopic rod (202). Transmission rods (204) are fixedly connected to both sides of the lower end of the transmission plate (203). The transmission rods (204) movably pass through the mounting frame (1). A ring light (205) is fixedly connected to the lower end of the transmission rods (204). An upward viewing camera (206) is fixedly connected to the lower output end of the bidirectional telescopic rod (202). A side-view adjustment component is disposed at the lower end of the mounting bracket (1) and is used to adjust the side-view distance; Side-view light source adjustment component, which is located at the lower end of the mounting bracket (1) and is used to adjust the side-view light source.

2. The visual inspection module based on a dual-disc screening machine according to claim 1, characterized in that: The side-view adjustment assembly includes a protrusion (301) fixedly connected to the outer wall of the lower output end of the bidirectional telescopic rod (202). The mounting bracket (1) is rotatably connected to the lower output end of the bidirectional telescopic rod (202) with a sleeve (302). The inner wall of the sleeve (302) is provided with a curved groove (303) corresponding to the protrusion (301). The protrusion (301) and the curved groove (303) are slidably connected.

3. The visual inspection module based on a dual-disc screening machine according to claim 2, characterized in that: The outer wall of the sleeve (302) is fixedly connected to a transmission disc (304). The transmission disc (304) has a clearance groove (305) corresponding to the transmission rod (204). The transmission disc (304) has an array of extrusion grooves (306). The mounting frame (1) has a support frame (307) fixedly installed corresponding to the transmission disc (304). The support frame (307) has an inclined guide rod (308) fixedly installed corresponding to the extrusion grooves (306).

4. The visual inspection module based on a dual-disc screening machine according to claim 3, characterized in that: The outer wall of each inclined guide rod (308) is slidably connected with an adjusting rod (309), the lower end of the adjusting rod (309) passes through the extrusion groove (306), and a side-view camera (310) is fixedly installed at the lower end of each adjusting rod (309).

5. A visual inspection module based on a dual-disc screening machine according to claim 4, characterized in that: The side-view light source adjustment assembly includes a support block (401) fixedly connected to the outer wall of the adjustment rod (309), and the support block (401) is fixedly connected to the upper end of the side-view camera (310). A support spring (402) is fixedly connected to the upper end of the support block (401), and the support spring (402) is sleeved on the outer wall of the adjustment rod (309).

6. The visual inspection module based on a dual-disc screening machine according to claim 5, characterized in that: The upper end of the support spring (402) is fixedly connected to a pressure block (403), and the lower end of the pressure block (403) is fixedly connected to a pressure rod (404). The lower end of the pressure rod (404) movably passes through the support block (401), and the lower end of the pressure rod (404) is fixedly connected to a pressure shaft (405).

7. A visual inspection module based on a dual-disc screening machine according to claim 6, characterized in that: The adjusting rod (309) is fixedly connected to a central shaft (406) at the middle of the side-view camera (310) and the support block (401). Both sides of the central shaft (406) are fixedly connected to a transmission frame (407). A side-view lamp (408) is fixedly connected to one side of the transmission frame (407). The transmission frame (407) is provided with a pressure groove (409) corresponding to the pressure shaft (405), and the pressure groove (409) is movably sleeved on the outer wall of the pressure shaft (405).

8. A method of using a visual inspection module based on a dual-disc sorting machine, applicable to the visual inspection module based on a dual-disc sorting machine as described in any one of claims 1-7, characterized in that: The method includes the following steps: S1: According to the diameter specification of the O-ring to be tested, control the action of the bidirectional telescopic rod (202) to drive the upward camera (206) to move upward and the ring light (205) to move downward simultaneously, thereby changing the bright field and dark field effect of the upward illumination and completing the specification adaptation of the upward inspection station. S2: While the bidirectional telescopic rod (202) moves, the sleeve (302) is driven to rotate through the cooperation of the protrusion (301) and the curved groove (303). The sleeve (302) drives the transmission disc (304) to rotate. The transmission disc (304) pushes the adjusting rod (309) to expand outward and rise along the inclined guide rod (308) through the extrusion groove (306), so that the detection position of the side-view camera (310) is compatible with the O-ring specification. S3: During the upward movement of the adjusting rod (309), the support block (401) moves upward synchronously. The pressure block (403) is limited by the transmission disc (304) to keep its height unchanged. The pressure shaft (405) squeezes the pressure groove (409) relative to the pressure shaft, causing the transmission frame (407) to rotate around the central axis (406), which drives the illumination angle of the side-view lamp (408) to rotate upward, matching the detection position and height of the side-view camera (310).

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