High-efficiency visual detection mechanism

Abstract

The utility model discloses a kind of high-efficiency visual inspection mechanism, including rack, workbench is equipped on it;A stand column is penetrated in workbench along Z-axis direction and is connected with rack;Rotary assembly is located on workbench;First visual inspection module, above transparent object table along Z-axis, be located on the upper section of stand column and can be lifted along stand column and adjusted, for detecting workpiece upper surface;Second visual inspection module, below transparent object table along Z-axis, be located on the lower section of stand column and can be lifted along stand column and adjusted, for detecting workpiece bottom surface;Third visual inspection module, along Y-axis, located in the side of transparent object table, be located on workbench and can be horizontally slid along workbench, for detecting workpiece circumferential side;The mechanism overall occupies small space, while improving detection efficiency and accuracy, with structural simplicity and optical adaptability, especially suitable for high-precision, multi-variety workpiece automated visual inspection scene.

Description

Technical Field

[0001] This utility model relates to the field of visual inspection technology, specifically to a high-efficiency visual inspection mechanism. Background Technology

[0002] In the electronics manufacturing industry, visual inspection is a core component for ensuring the quality of critical components such as transformers. Currently, high-precision electronic transformers require comprehensive visual inspection. Traditional methods typically rely on manual flipping or multiple positioning steps to acquire images of the upper and lower surfaces and sidewalls, resulting in low efficiency, large repeatability errors, and potential damage to precision workpieces. Existing automated equipment often employs complex mechanical clamping and flipping mechanisms to address multi-faceted inspection, increasing system complexity and cost, and potentially causing product defects due to contact stress. Furthermore, the diversity of workpiece materials and colors demands that optical inspection systems possess excellent adaptability to provide optimal imaging contrast, while fixed light sources and background solutions are insufficient to meet the inspection needs of diverse product types. Therefore, the industry urgently needs a new visual inspection solution that can simultaneously inspect all surfaces, simplify the structure, and flexibly adapt the optics to meet the high-precision, multi-variety automated inspection requirements of electronic transformers. Utility Model Content

[0003] To address the aforementioned challenges, this invention provides a high-efficiency visual inspection mechanism, comprising: A frame with a worktable on it; a column runs through the worktable along the Z-axis and is connected to the frame. The rotating assembly includes a first mounting base and a second mounting base mounted on a worktable along the Y-axis; the first mounting base along the Z-axis has a transparent stage on its top, and its inner cavity is arranged sequentially from top to bottom with an annular connector, a driven wheel, a panel lighting component, and a second background plate; the annular connector is detachably fixedly connected to the bottom surface of the transparent stage; the driven wheel is detachably fixedly connected to the bottom of the annular connector; the panel lighting component is detachably fixedly connected to the second background plate, and the two sides of the second background plate are inserted into the sliding grooves on the inner walls of the two sides of the first mounting base to form a sliding fit connection; the rotating drive component is mounted on a support plate in the second mounting base, and its output shaft is connected to the driving wheel; a synchronous belt wraps around the driven wheel and the driving wheel to form a belt drive structure; The first vision inspection module is located above the transparent stage along the Z-axis, on the upper section of the column, and can be raised and lowered along the column. It is used to inspect the upper surface of the workpiece. The second vision inspection module is located below the transparent stage along the Z-axis, in the lower section of the column, and can be raised and lowered along the column. It is used to inspect the bottom surface of the workpiece. The third vision inspection module is located on one side of the transparent stage along the Y-axis. It is mounted on the worktable and can slide horizontally along the worktable. It is used to inspect the periphery of the workpiece. The control device is electrically connected to the rotary drive, the first vision detection module, the second vision detection module, and the third vision detection module.

[0004] Preferably, the support plate is provided with an adjustable limit wheel on the outside of the synchronous belt, and the synchronous belt is kept taut by the adjustable limit wheel to ensure transmission stability.

[0005] Preferably, the first visual detection module includes a first camera and a first ring-shaped fill light component, wherein the first ring-shaped fill light component is located at the end of the first camera near the transparent stage.

[0006] Preferably, the second visual detection module includes a second camera and a second ring-shaped fill light component, with the second ring-shaped fill light component located at the end of the second camera near the transparent stage.

[0007] Preferably, the third vision detection module includes a third camera and a third ring-shaped fill light component, with the third ring-shaped fill light component located at the end of the third camera near the transparent stage.

[0008] Preferably, it also includes a fourth vision detection module, which is set diagonally above the transparent stage, for detecting the transition area between the upper surface of the workpiece and its periphery.

[0009] Preferably, the fourth vision detection module includes a fourth camera and a fourth ring-shaped fill light component, with the fourth ring-shaped fill light component located at the end of the fourth camera near the transparent stage.

[0010] Preferably, a first support is provided on the upper section of the column along the Z-axis, a third support is provided on the lower section, a fifth support is provided on the side of the column via a second connecting bracket, and a fourth support is provided on one side of the transparent stage along the Y-axis worktable; the first camera and the first ring light component are both provided on the first support and are slidably connected to the first support via a first moving component; the second camera and the second ring light component are both provided on the third support and are slidably connected to the third support via a third moving component; the third camera and the third ring light component are both provided on the fourth support and are slidably connected to the fourth support via a fourth moving component; and the fourth camera and the fourth ring light component are both provided on the fifth support and are slidably connected to the fifth support via a fifth moving component.

[0011] Preferably, both the driving pulley and the driven pulley are toothed pulleys, and the synchronous belt is a toothed belt.

[0012] Preferably, the transparent stage is made of optical-grade quartz glass or high-transmittance acrylic material.

[0013] The beneficial effects are as follows: This application, by setting up a first vision inspection module, a second vision inspection module, and a third vision inspection module to cover the upper surface, bottom surface, and periphery of the workpiece respectively, and coordinating with rotation, can complete the synchronous data acquisition of the entire surface of the workpiece in one go. Compared with the existing technology that requires multiple flipping or moving of the workpiece for step-by-step inspection, it not only saves the time for adjusting the workpiece posture and greatly improves the inspection efficiency, but also avoids the accumulation of errors caused by multiple positioning, significantly improving the inspection accuracy. The transparent stage allows the second vision inspection module to directly perform non-contact penetration inspection on the bottom surface of the workpiece, eliminating the need for the clamping and flipping mechanisms in traditional solutions, simplifying the mechanical structure complexity of the entire machine and reducing workpiece damage. Risks: The rotating assembly integrates a detachable panel illumination component and a second background plate, which can be easily inserted, removed, and replaced along the inner wall of the first mounting base via a sliding groove. The second background plate can be flexibly changed to different hues according to the material, color, and surface characteristics of the workpiece being tested, to optimize image contrast and enhance the ability to identify edges and defects. The panel illumination component provides a uniform surface light source. The combined use of both significantly improves the signal-to-noise ratio of image acquisition, ensuring the accuracy and stability of the inspection results. When it is necessary to inspect the bottom of the workpiece, the second background plate and panel illumination component can be directly pulled out; when it is not necessary to inspect the bottom of the workpiece, the second background plate and panel illumination component can be directly inserted, enabling rapid scene switching. In summary, this mechanism occupies a small overall space, improves inspection efficiency and accuracy, and combines structural simplicity and optical adaptability, making it particularly suitable for automated visual inspection scenarios involving high-precision, multi-variety workpieces. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the mechanism after concealing the outer casing, control device, first mounting base, and second mounting base of this application; Figure 3 This is a schematic diagram showing the assembly relationship between the first vision inspection module, the fourth vision inspection module, and the column in this application. Figure 4 This is a schematic diagram showing the assembly relationship between the first vision inspection module, the second vision inspection module, and the column in this application. Figure 5 This is a schematic diagram of the cross-sectional structure of this application; Figure 6 This is a schematic diagram of the overall structure of the rotating component in this application; Figure 7 This is a schematic diagram of the exploded structure of the rotating component in this application; Figure 8 This is a cross-sectional view of the rotating component of this application; In the picture: 1. Frame; 11. Workbench; 111. Fourth support; 1111. Fourth moving component; 112. First background plate; 12. Column; 121. First support; 1211. First moving component; 1212. First connecting bracket; 122. Second support; 1221. Second moving component; 123. Third support; 1231. Third moving component; 124. Fifth support; 1241. Fifth moving component; 1242. Second connecting bracket; 2. Rotating component; 21. First mounting base; 211. Transparent stage; 212. Annular connector; 213. Driven wheel; 214. Panel lighting component; 215. Second background plate; 22. Second mounting base; 221. Support plate; 222. Drive wheel; 223. Adjustable limit wheel; 224. Synchronous belt; 225. Rotary drive component; 3. First visual detection module; 31. First camera; 32. First ring-shaped supplementary lighting component; 4. Second visual detection module; 41. Second camera; 42. Second ring-shaped supplementary lighting component; 5. Third visual detection module; 51. Third camera; 52. Third ring-shaped supplementary lighting component; 6. Fourth visual detection module; 61. Fourth camera; 62. Fourth ring-shaped supplementary lighting component; 7. Control device; 71. Operation panel; 72. Operation buttons; 73. Display screen; 74. Main unit; 8. Workpiece. Detailed Implementation

[0015] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0016] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0017] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0018] Example Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the overall structure of this application. Figure 2 This is a schematic diagram of the mechanism after concealing the outer casing, control device, first mounting base, and second mounting base. This embodiment provides a high-efficiency visual inspection mechanism including a frame 1, a rotating assembly 2, a first visual inspection module 3, a second visual inspection module 4, a third visual inspection module 5, a fourth visual inspection module 6, and a control device 7. (See attached diagram.) Figure 1 As shown, for ease of understanding of this embodiment, a direction axis is established, with the X-axis as the first direction, the Y-axis as the second direction, and the Z-axis as the third direction. The first, second, and third directions are perpendicular to each other. The first and second directions are parallel to the upper surface of the worktable, and the third direction is perpendicular to the upper surface of the worktable. A one-piece worktable 11 is provided at the top of the frame 1. A column 12 passes through the worktable 11 along the Z-axis and is detachably fixed to the frame 1. A rotating assembly 2 is disposed on the worktable 11. A first vision detection module 3 and a second vision detection module 4 are respectively disposed on the upper and lower sections of the column 12 and can both be adjusted up and down along the column 12. A third vision detection module 5 is disposed on the worktable 11 and can slide horizontally along the worktable 11. A fourth vision detection module 6 is connected to the side of the column 12 via a second connecting bracket 1242 and can be adjusted up and down along the Z-axis. The first vision... The detection module 3 is located directly above the rotating component 2 and is used to detect the upper surface of the workpiece 8. The second vision detection module 4 is located directly below the rotating component 2 and is used to detect the bottom surface of the workpiece 8. The third vision detection module 5 is located on one side of the rotating component 2 along the Y-axis and is used to detect the periphery of the workpiece 8. The other side of the rotating component 2 is provided with a first background plate 112, that is, the first background plate 112 and the third vision detection module 5 are set opposite to each other. The fourth vision detection module 6 is located diagonally above the rotating component 2 and is used to detect the transition area between the upper surface and the periphery of the workpiece 8. Through parallel detection by multiple modules, the detection time of a single workpiece can be compressed to within 2 seconds.

[0019] The control device 7 is electrically connected to the rotary drive 225, the first vision detection module 3, the second vision detection module 4, the third vision detection module 5, and the fourth vision detection module 6. The control device 7 includes a host 74 and an operation panel 71, operation buttons 72, and a display screen 73 electrically connected to the host 74. The user inputs commands through the operation panel 71 or the operation buttons 72. The host 74 processes the data and coordinates the work of each module. The results are displayed on the screen in real time.

[0020] Please see Figures 4 to 8 , Figure 4 This is a schematic diagram showing the assembly relationship between the first vision inspection module, the second vision inspection module, and the column in this application. Figure 5 This is a schematic diagram of the cross-sectional structure of this application. Figure 6 This is a schematic diagram of the overall structure of the rotating component in this application. Figure 7 This is a schematic diagram of the exploded structure of the rotating component in this application. Figure 8 This is a cross-sectional view of the rotating assembly of this application. The rotating assembly 2 includes a first mounting base 21 and a second mounting base 22, both detachably fixed to the worktable 11 along the Y-axis; see also [link to related document]. Figure 1 and Figure 4 A transparent stage 211 is detachably fixed to the top of the first mounting base 21 along the Z-axis. The transparent stage 211 is made of optical-grade quartz glass or high-transmittance acrylic material, and its surface is polished, giving it good flatness and light transmittance. Along the Z-axis, from top to bottom within the cavity of the first mounting base 21, an annular connector 212, a driven wheel 213, a panel lighting component 214, and a second background plate 215 are arranged sequentially. The annular connector 212 is detachably fixed to the bottom surface of the transparent stage 211. (See also...) Figure 5 and Figure 8 The driven wheel 213 is detachably and fixedly connected to the bottom of the annular connector 212; the panel fill light component 214 is detachably and fixedly connected to the second background plate 215. In this embodiment, the panel fill light component 214 is specifically selected as a panel LED fill light. The two sides of the second background plate 215 are inserted into the sliding grooves on the inner walls of the two sides of the first mounting base 21 to form a sliding fit connection; see reference. Figure 6 and Figure 7The rotary drive component 225 is mounted on the support plate 221 inside the second mounting base 22. The output shaft of the rotary drive component 225 is connected to the drive wheel 222. Specifically, the rotary drive component 225 can be a DC brushless drive motor, purchased from Foshan Tengchi Electromechanical Equipment Co., Ltd. The synchronous belt 224 wraps around the driven wheel 213 and the drive wheel 222 to form a belt drive structure. In this embodiment, both the drive wheel 222 and the driven wheel 213 are toothed pulleys, and the diameter ratio of the driven wheel 213 to the drive wheel 222 is greater than or equal to 3 and less than or equal to 5. The synchronous belt 224 is a toothed belt. The rotary drive component 225 drives the drive wheel 222 to rotate through the synchronous belt 224 to drive the driven wheel 213 and the transparent platform 211 to rotate synchronously. In order to keep the synchronous belt 224 taut to ensure transmission stability, at least two adjustable limit wheels 223 or tension wheels can be provided on the support plate 221. The two adjustable limit wheels 223 or tension wheels are located on the outside of the synchronous belt 224. The rotating component 2 uses a toothed synchronous belt drive, coupled with an adjustable limit wheel 223 tensioning mechanism, to improve the rotation accuracy of the transparent stage 211 and effectively eliminate detection errors caused by transmission backlash. To protect the rotating component 2 from dust, moisture, and other contaminants, a housing can be used to cover it.

[0021] See also Figure 2The first visual detection module 3 includes a first camera 31, a first ring-shaped fill light component 32, and a first blocking component. The first blocking component is sleeved on the outside of the first camera 31, and the first ring-shaped fill light component 32 is located at the end of the first camera 31 near the transparent stage 211. The second visual detection module 4 includes a second camera 41, a second ring-shaped fill light component 42, and a second blocking component. The second blocking component is sleeved on the outside of the second camera 41, and the second ring-shaped fill light component 42 is located at the end of the second camera 41 near the transparent stage 211. The third visual detection module 5 includes a third camera 51, a third ring-shaped fill light component 52, and a third blocking component. The third blocking component is sleeved on the outside of the third camera 51, and the third ring-shaped fill light component 52 is located at the end of the third camera 51 near the transparent stage 211. The fourth visual inspection module 6 includes a fourth camera 61, a fourth ring-shaped fill light component 62, and a fourth blocking component. The fourth blocking component is fitted outside the fourth camera 61, and the fourth ring-shaped fill light component 62 is located at the end of the fourth camera 61 near the transparent stage 211. The first camera 31, second camera 41, third camera 51, and fourth camera 61 can be CCD cameras, binocular stereo cameras, line scan cameras, or combinations thereof. The first ring-shaped fill light component 32, second ring-shaped fill light component 42, third ring-shaped fill light component 52, and fourth ring-shaped fill light component 62 are all ring-shaped fill lights. Each visual inspection module is equipped with a ring-shaped fill light component, which provides a uniform and sufficient light source for the camera, helping to improve image quality and thus enhance the accuracy of the inspection results. The first, second, third, and fourth blocking components are all extension tubes. Of course, to extend the service life of the first visual inspection module 3, second visual inspection module 4, third visual inspection module 5, and fourth visual inspection module 6, a casing can also be fitted over them to protect them from dust.

[0022] See also Figure 2 , Figure 4 Please refer to the following: Figure 3 , Figure 3This is a schematic diagram showing the assembly relationship between the first vision inspection module, the fourth vision inspection module, and the column in this application. A first support 121 is provided on the upper section of the column 12 along the Z-axis, and a third support 123 is provided on its lower section. A second support 122 is provided above the first support 121 along the X-axis via a first connecting bracket 1212. A fifth support 124 is provided on the side of the column 12 via a second connecting bracket 1242. A fourth support 111 is provided on one side of the transparent stage 211 along the Y-axis of the worktable 11. A first annular supplementary lighting component 32 is mounted on the first support 121 and slidably connected to the first support 121 via a first moving component 1211. A first camera 31 is mounted on the second support 122. The second camera 41 and the second annular fill light component 42 are both mounted on the third support 123 and slidably connected to it via the third moving component 1231. The third camera 51 and the third annular fill light component 52 are both mounted on the fourth support 111 and slidably connected to it via the fourth moving component 1111. The fourth camera 61 and the fourth annular fill light component 62 are both mounted on the fifth support 124 and slidably connected to it via the fifth moving component 1241. Each vision inspection module can be adjusted in position, allowing the entire device to adapt to workpieces of different sizes and shapes, thus improving its versatility and flexibility.

[0023] The first moving assembly 1211 includes a first linear guide rail, a first slider, a first drive motor, a first ball screw, a first nut, and a coupling. The first linear guide rail is fixedly mounted vertically on the first support 121. The first slider is slidably fitted onto the first linear guide rail and fixedly connected to the first annular supplementary lighting component 32 to guide its smooth vertical movement. The first ball screw is arranged vertically, with its upper end connected to the output shaft of the first drive motor via a coupling, and its lower end rotatably supported on the first support 121 via a bearing and bearing seat. The first drive motor is fixed to the first support 121. The top or side of the first support 121 has its axis arranged coaxially with the first ball screw; the first nut is sleeved on the first ball screw and fixedly connected to the first slider; when the first drive motor starts, it drives the first ball screw to rotate, and through the helical pair transmission between the screw and the nut, the rotational motion is converted into the vertical linear motion of the first nut and the first slider, thereby driving the first annular supplementary lighting component 32 to move up and down; the first linear guide rail is arranged parallel to the first ball screw, together forming a lifting system that coordinates guidance and transmission, ensuring the accuracy and stability of the operation of the first annular supplementary lighting component 32. The first moving component 1211, the second moving component 1221, the third moving component 1231, the fourth moving component 1111, and the fifth moving component 1241 have the same structure, so they will not be described again. It is worth noting that the sliders on the third moving component 1231, the fourth moving component 1111, and the fifth moving component 1241 can be set in multiple ways according to actual needs. Taking the third moving component 1231 as an example, the third moving component 1231 can include at least two third sliders, which are slidably engaged on the third linear guide rail. The second camera 41 and the second ring-shaped fill light component 42 are respectively fixedly connected to the two third sliders.

[0024] Of course, there are also simpler designs in this application, such as removing the second moving component 1221 and placing the first camera 31 and the first ring light component 32 on the first support 121 and slidably connecting them to the first support 121 through the first moving component 1211. Specifically, the first moving component 1211 can also be provided with at least two first sliders, which are slidably engaged on the first linear guide rail, wherein the first camera 31 and the first ring light component 32 are respectively fixedly connected to the two first sliders.

[0025] In summary, this embodiment establishes a 360° all-dimensional detection network by setting up a first vision detection module, a second vision detection module, a third vision detection module, and a fourth vision detection module to cover the upper surface, bottom surface, periphery, and the transition area between the upper surface and periphery of the workpiece, respectively. Combined with rotation, this allows for simultaneous data acquisition of the entire workpiece surface in one operation, achieving comprehensive workpiece detection without blind spots. Compared to existing technologies that require multiple flipping or movement of the workpiece for step-by-step detection, this not only saves time adjusting the workpiece's posture and significantly improves detection efficiency but also avoids error accumulation from multiple positioning steps, significantly enhancing detection accuracy. The transparent stage allows the second vision detection module to directly perform non-contact penetration detection on the bottom surface of the workpiece, eliminating the need for clamping mechanisms and flipping mechanisms found in traditional solutions. This mechanism simplifies the overall mechanical structure of the equipment and reduces the risk of workpiece damage. The rotating assembly integrates a detachable panel illumination component and a second background plate, which can be easily inserted, removed, and replaced along the inner wall of the first mounting base via a sliding groove. The second background plate can be flexibly changed to different hues according to the material, color, and surface characteristics of the workpiece being tested, optimizing image contrast and enhancing the ability to identify edges and defects. The panel illumination component provides a uniform surface light source. The combined use of these two components significantly improves the signal-to-noise ratio of image acquisition, ensuring the accuracy and stability of the inspection results. When inspecting the bottom of the workpiece, the second background plate and panel illumination component can be directly pulled out; when not inspecting the bottom, they can be directly inserted, enabling rapid scene switching. In summary, this mechanism occupies a small space and, while improving inspection efficiency and accuracy, also possesses structural simplicity and optical adaptability, making it particularly suitable for automated visual inspection scenarios involving high-precision, multi-variety workpieces.

[0026] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A high-efficiency visual inspection mechanism, characterized in that, include: A frame with a worktable on it; a column passes through the worktable along the Z-axis and is connected to the frame. The rotating assembly includes a first mounting base and a second mounting base disposed on the worktable along the Y-axis; the first mounting base along the Z-axis has a transparent stage at its top, and its inner cavity is arranged sequentially from top to bottom with an annular connector, a driven wheel, a panel lighting component, and a second background plate; the annular connector is detachably fixedly connected to the bottom surface of the transparent stage; the driven wheel is detachably fixedly connected to the bottom of the annular connector; the panel lighting component is detachably fixedly connected to the second background plate, and the two sides of the second background plate are inserted into the sliding grooves on the inner walls of the two sides of the first mounting base to form a sliding fit connection; a rotating drive component is mounted on a support plate inside the second mounting base, and its output shaft is connected to a drive wheel; a synchronous belt wraps around the driven wheel and the drive wheel to form a belt drive structure; The first vision inspection module is located above the transparent stage along the Z-axis, on the upper section of the column, and can be raised and lowered along the column to inspect the upper surface of the workpiece. The second vision inspection module is located below the transparent stage along the Z-axis, in the lower section of the column, and can be raised and lowered along the column to inspect the bottom surface of the workpiece. The third vision inspection module is located on one side of the transparent stage along the Y-axis, is mounted on the worktable and can slide horizontally along the worktable, and is used to inspect the periphery of the workpiece. The control device is electrically connected to the rotary drive component, the first vision detection module, the second vision detection module, and the third vision detection module.

2. The high-efficiency visual inspection mechanism according to claim 1, characterized in that, The support plate is provided with an adjustable limit wheel on the outside of the synchronous belt. The adjustable limit wheel keeps the synchronous belt taut to ensure transmission stability.

3. The high-efficiency visual inspection mechanism according to claim 2, characterized in that, The first visual detection module includes a first camera and a first ring-shaped fill light component, wherein the first ring-shaped fill light component is disposed at the end of the first camera near the transparent stage.

4. The high-efficiency visual inspection mechanism according to claim 3, characterized in that, The second visual detection module includes a second camera and a second ring-shaped fill light component, with the second ring-shaped fill light component located at one end of the second camera near the transparent stage.

5. The high-efficiency visual inspection mechanism according to claim 4, characterized in that, The third visual detection module includes a third camera and a third ring-shaped fill light component, wherein the third ring-shaped fill light component is located at the end of the third camera near the transparent stage.

6. The high-efficiency visual inspection mechanism according to claim 5, characterized in that, It also includes a fourth vision inspection module, which is located diagonally above the transparent stage, for detecting the transition area between the upper surface of the workpiece and its periphery.

7. The high-efficiency visual inspection mechanism according to claim 6, characterized in that, The fourth visual detection module includes a fourth camera and a fourth ring-shaped fill light component, wherein the fourth ring-shaped fill light component is located at the end of the fourth camera near the transparent stage.

8. The high-efficiency visual inspection mechanism according to claim 7, characterized in that, A first support is provided on the upper section of the column along the Z-axis, and a third support is provided on the lower section. A fifth support is provided on the side of the column via a second connecting bracket. A fourth support is provided on one side of the transparent stage along the Y-axis. The first camera and the first ring light component are both mounted on the first support and are slidably connected to the first support via a first moving component. The second camera and the second ring light component are both mounted on the third support and are slidably connected to the third support via a third moving component. The third camera and the third ring light component are both mounted on the fourth support and are slidably connected to the fourth support via a fourth moving component. The fourth camera and the fourth ring light component are both mounted on the fifth support and are slidably connected to the fifth support via a fifth moving component.

9. The high-efficiency visual inspection mechanism according to claim 1, characterized in that, Both the driving pulley and the driven pulley are toothed pulleys, and the synchronous belt is a toothed belt.

10. The high-efficiency visual inspection mechanism according to claim 1, characterized in that, The transparent stage is made of optical-grade quartz glass or high-transmittance acrylic material.

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