An aluminum alloy wheel cover collar inspection device

Abstract

The application relates to the technical field of wheel cover stopper intelligent detection, and discloses an aluminum alloy wheel cover stopper detection device, which comprises a mounting bracket, a main flow line conveying belt, a detection assembly, a limiting assembly and a cover stopper detection system, the detection assembly comprises a support plate frame, first and second detection mechanisms and a plate chain conveying belt, a workpiece supporting plate on the top end of a supporting column of the plate chain conveying belt can be rotated by 180 degrees through meshing of a sawtooth ring and a sawtooth plate; the limiting assembly comprises a sliding groove, an inverted T-shaped sliding block, a lifting mechanism and a baffle; the device adopts a double mechanism of preliminary detection and re-detection confirmation, and the re-detection station is replaced and the workpiece is rotated to avoid misjudgment caused by metal reflection; the main flow line and the preliminary detection mechanism continuously operate during re-detection, so that the production efficiency is guaranteed; the baffle can ensure that the re-detection qualified workpieces return to the original sequence, so that the detection accuracy, the production efficiency and the process orderliness are unified.

Description

Technical Field

[0001] This invention relates to the field of intelligent detection technology for wheel cover stops, and in particular to a detection device for aluminum alloy wheel cover stops. Background Technology

[0002] The stop on an aluminum alloy wheel cover is a ring-shaped protrusion or stepped structure with specific dimensional precision and structural form designed around the edge of the wheel cover. Its core function is to achieve precise assembly and positioning of the wheel cover and the wheel hub. During assembly, the stop can form a tight fit with the corresponding interface of the wheel hub, ensuring that the wheel cover is firmly attached and does not shift or loosen during vehicle operation. It also helps to seal the gap between the wheel hub and the wheel cover, reducing the intrusion of dust, moisture, and other impurities. At the same time, the dimensional precision and surface quality of the stop directly affect the assembly compatibility and safety of the wheel cover, making it a key structural component that requires focused inspection during the manufacturing of aluminum alloy wheel covers.

[0003] Regarding existing related technologies, the inventors believe that the following defects often exist: When inspecting the stop of aluminum alloy wheel covers, the reflection caused by the metallic luster may cause the identified image to be overexposed, which can easily be confused with the production defects of the stop itself, leading to misjudgment. In order to avoid misjudgment, it is usually necessary to re-inspect. When traditional inspection devices reject workpieces for re-inspection, if the main flow line and the initial inspection mechanism are still operating normally, the rejection of re-inspection workpieces will cause the workpiece sorting to be disrupted. If the main flow line and the initial inspection mechanism stop working and wait, the inability to operate continuously will affect efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that in the existing technology, the metal luster reflection can easily cause image exposure and confusion with defects, requiring re-inspection. However, traditional inspection devices either disrupt the main waterline workpiece sorting when rejecting workpieces for re-inspection, or stop work to wait for re-inspection, affecting work efficiency. There is a disadvantage that sorting and efficiency are difficult to balance. Therefore, we propose an aluminum alloy wheel cover stop inspection device.

[0005] To achieve the above objectives, this application adopts the following technical solution: an aluminum alloy wheel cover stop detection device, comprising: a mounting bracket, a main water line conveyor belt installed inside the mounting bracket, a detection component installed on the side of the mounting bracket, the detection component including a support plate frame, a first detection mechanism and a second detection mechanism installed side by side on the top of the support plate frame, and a reset push rod installed on the inner wall of the second detection mechanism, a plate chain conveyor belt installed inside the support plate frame, the conveying direction of the plate chain conveyor belt being consistent with the conveying direction of the main water line conveyor belt, a plurality of support columns evenly arranged on the surface of the plate chain conveyor belt, a workpiece support plate rotatably connected to the top of the support columns, a limiting component installed on the top of the mounting bracket, and a robotic arm installed at the end of the support plate frame;

[0006] The robotic arm is used to push the workpieces on the main water-line conveyor belt to the area below the first inspection mechanism for inspection. If the inspection identifies that the workpiece has no defects, the robotic arm will return the workpiece to the main water-line conveyor belt. If the inspection identifies that the workpiece has defects, the plate chain conveyor belt will be activated to transport the workpiece to the area below the second inspection mechanism for re-inspection. When any workpiece enters the re-inspection stage, the main water-line conveyor belt and the first inspection mechanism will maintain continuous operation. After the re-inspection is completed and the workpiece is determined to be qualified, the reset push rod will be activated to push it back to its original sorting position on the main water-line conveyor belt to ensure that the overall workpiece flow sequence is not affected. If the workpiece is determined to be unqualified, an NG alarm signal will be triggered.

[0007] Preferably, a serrated ring is fixedly connected to the bottom of the workpiece pallet, and the serrated ring is sleeved on the outside of the support column.

[0008] Preferably, the detection component further includes a serrated plate, which is fixedly connected to the inner wall of the support frame. The number of teeth on the serrated plate is set to half the number of teeth on the serrated ring. When the serrated ring moves with the plate chain conveyor belt and meshes with the serrated plate, it can drive the serrated ring to rotate the workpiece pallet 180 degrees.

[0009] Preferably, the limiting component includes a slide groove, which is formed on the top of the mounting bracket, and an inverted T-shaped slider is slidably connected inside the slide groove. A lifting mechanism is installed on the top of the inverted T-shaped slider.

[0010] Preferably, the output end of the lifting mechanism is equipped with a baffle, which spans across the main waterline conveyor belt. A driven plate is fixedly connected to the end of the baffle. The limiting component also includes a deflector plate, which is fixedly connected to the surface of the plate chain conveyor belt and corresponds one-to-one with the workpiece pallet.

[0011] Preferably, the slide groove is symmetrically arranged in two sets about the vertical central axis of the mounting bracket. One set of the mounting bracket is provided with a second electromagnet at its end, and a first electromagnet is fixedly connected to the side of the corresponding inverted T-shaped slider.

[0012] Preferably, the system also includes a cover stop detection system, which includes a detection module. The detection module includes a preliminary inspection and a re-inspection. The preliminary inspection is used to inspect all workpieces sequentially, and the re-inspection is used to perform a second inspection on workpieces that have defects in the preliminary inspection, so as to avoid misjudgment.

[0013] Preferably, the cover stop detection system further includes a control module, which includes a detection component control mechanism, a limiting component control mechanism, and a robotic arm control mechanism. The robotic arm control mechanism is used to control the robotic arm to push the workpiece below the first detection mechanism for initial inspection, and when the workpiece is determined to be qualified, to retrieve the workpiece back above the main water line conveyor belt.

[0014] Preferably, the detection component control mechanism is used to control the start-up plate chain conveyor belt to transport the workpiece to the bottom of the second detection mechanism for re-inspection when the initial inspection determines that the workpiece has a defect. When the re-inspection is qualified, the mechanism controls the reset push rod to push the workpiece back to the corresponding position on the main water line conveyor belt. When the re-inspection determines that the workpiece does have a defect, the mechanism triggers an NG alarm signal.

[0015] Preferably, the limited component control mechanism is used to control the second electromagnet to de-energize when a workpiece needs to be re-inspected, and at the same time control the lifting mechanism to drive the baffle to fall. After the re-inspected workpiece is determined to be qualified, the lifting mechanism is controlled to drive it to rise, and at the same time the second electromagnet is energized to drive the inverted T-shaped slider to slide back to the initial position.

[0016] The technical effects and advantages of this invention are as follows:

[0017] This invention employs a dual mechanism of initial inspection diversion and re-inspection confirmation, coupled with re-inspection station replacement and 180-degree workpiece rotation. This not only avoids misjudgments caused by metal reflection and localized overexposure during initial inspection, but also fills in the blind spots of single-view inspection, significantly improving defect identification accuracy. Furthermore, it only triggers shutdown when the re-inspection confirmation is unqualified, avoiding frequent production stoppages caused by initial inspection misjudgments. On the other hand, during re-inspection, the main water conveyor belt and the initial inspection mechanism maintain continuous operation, enabling parallel inspection and production and avoiding resource idleness. At the same time, the blocking effect of the baffle in the limiting component ensures that the re-inspected qualified workpieces are accurately returned to their original sorting positions, eliminating the sorting chaos caused by traditional re-inspection. No manual adjustment is required, which not only eliminates quality risks such as misassembly and mislabeling, but also ensures continuous and stable production processes, ultimately achieving a highly efficient balance between inspection accuracy, production efficiency, and process orderliness. Attached Figure Description

[0018] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts:

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the workpiece in a re-inspection state;

[0020] Figure 2 This is a schematic diagram of the structure of the present invention where no workpiece is in the inspection state;

[0021] Figure 3 This is a three-dimensional structural diagram of the mounting bracket and limiting components of the present invention;

[0022] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0023] Figure 5 This is a three-dimensional structural diagram of the component portion of the present invention;

[0024] Figure 6 This is a three-dimensional structural diagram of the detection component of the present invention;

[0025] Figure 7 This is a three-dimensional structural diagram of the plate chain conveyor belt portion of the present invention;

[0026] Figure 8 This is a three-dimensional structural diagram of the workpiece support plate portion of the present invention.

[0027] Legend: 1. Mounting bracket; 2. Main waterline conveyor belt; 3. Detection component; 4. Limiting component; 5. Robotic arm; 301. Support plate frame; 302. First detection mechanism; 303. Second detection mechanism; 304. Plate chain conveyor belt; 305. Reset push rod; 306. Serrated plate; 307. Support column; 308. Workpiece pallet; 309. Serrated ring; 401. Slide groove; 402. Inverted T-shaped slider; 403. Lifting mechanism; 404. Baffle; 405. Driven plate; 406. First electromagnet; 407. Second electromagnet; 408. Actuating plate. Detailed Implementation

[0028] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0029] Reference Figure 1As shown, the present invention provides a technical solution: an aluminum alloy wheel cover stop inspection device, comprising: a mounting bracket 1, a main water supply conveyor belt 2 installed inside the mounting bracket 1, and an inspection component 3 installed on the side of the mounting bracket 1. The processed wheel cover stop workpiece is conveyed backward by the main water supply conveyor belt 2 and simultaneously transferred to the inspection component 3 for sequential inspection. The inspection component 3 uses image recognition technology to identify and inspect the valve position and the inner diameter of the wheel cover stop of the workpiece. After detecting a defective workpiece, an NG signal is triggered, causing the processing line to stop, and the operator checks whether the workpiece defect is caused by the chipping of the cutting tool, thus avoiding the production of too many defective workpieces.

[0030] When using image recognition technology to inspect workpieces, the metal reflectivity of the wheel cover stop can interfere with the inspection accuracy. This can lead to localized overexposure, loss of texture details, or false contours in the images captured by the camera. Consequently, the system may mistakenly identify reflective areas of normal workpieces as defects such as dents or scratches. If a defect is detected sequentially and an NG signal is triggered to stop the production line, frequent downtime due to these misjudgments of non-real defects will significantly reduce production efficiency and may also result in the waste of rejecting qualified workpieces. To avoid these misjudgment problems, this application proposes the following improvements:

[0031] Please see Figure 1 , Figure 2 and Figure 6 As shown, the detection assembly 3 includes a support frame 301. A first detection mechanism 302 and a second detection mechanism 303 are mounted side-by-side on the top of the support frame 301. A reset push rod 305 is installed on the inner wall of the second detection mechanism 303. A plate chain conveyor belt 304 is installed inside the support frame 301, and the conveying direction of the plate chain conveyor belt 304 is consistent with the conveying direction of the main waterline conveyor belt 2. A plurality of support columns 307 are evenly arranged on the surface of the plate chain conveyor belt 304. A workpiece support plate 308 is rotatably connected to the top of each support column 307. A limiting component is installed on the top of the mounting bracket 1. 4. A robotic arm 5 is installed at the end of the support frame 301. The robotic arm 5 is used to push the workpiece on the main water line conveyor belt 2 to the bottom of the first inspection mechanism 302 for inspection. If the inspection identifies that the workpiece has no defects, the robotic arm 5 will take the workpiece back to the main water line conveyor belt 2. If the inspection identifies that the workpiece has defects, the plate chain conveyor belt 304 will be activated to transport the workpiece to the bottom of the second inspection mechanism 303 for re-inspection. After the re-inspection is completed and the workpiece is determined to be qualified, the reset push rod 305 will be activated to push it back to the top of the main water line conveyor belt 2. If the workpiece is determined to be unqualified, an NG alarm signal will be triggered.

[0032] By employing a dual verification mechanism of initial inspection and re-inspection, the system effectively avoids image recognition errors caused by interference factors such as metal reflection, significantly reducing the waste of rejecting qualified workpieces due to misjudgment and ensuring the accuracy of test results. The system only triggers an NG alarm when the re-inspection confirms a failure, rather than stopping the machine if there is any doubt in the initial inspection. This fundamentally reduces frequent production line downtime caused by misjudgments, balancing product testing quality with the continuity and efficiency of the production process, and achieving an optimized balance between testing accuracy and production efficiency.

[0033] When any workpiece enters the re-inspection stage, the main waterline conveyor belt 2 and the first inspection mechanism 302 maintain continuous operation. The main waterline conveyor belt 2 and the first inspection mechanism 302 can continuously transport subsequent workpieces without waiting for the re-inspection results, effectively avoiding production stagnation and ensuring the workpiece turnover efficiency and overall capacity per unit time. On the other hand, the initial inspection mechanism can continue to inspect new workpieces on the main waterline, which not only makes full use of the equipment's continuous operation capability and avoids the waste of initial inspection resources, but also, through the parallel mode of re-inspection and initial inspection, ensures that the re-inspection stage can accurately eliminate misjudgments such as metal reflection, while minimizing the impact of the re-inspection stage on the production rhythm, and achieves efficient synergy between inspection accuracy and production continuity.

[0034] Please see Figure 7 and Figure 8 As shown, a serrated ring 309 is fixedly connected to the bottom of the workpiece pallet 308, and the serrated ring 309 is sleeved on the outside of the support column 307. The detection component 3 also includes a serrated plate 306, and the serrated plate 306 is fixedly connected to the inner wall of the support plate frame 301. The number of teeth of the serrated plate 306 is set to half the number of teeth of the serrated ring 309. When the serrated ring 309 moves with the plate chain conveyor belt 304 and meshes with the serrated plate 306, it can drive the serrated ring 309 to drive the workpiece pallet 308 to complete a 180-degree rotation.

[0035] By incorporating a serrated plate 306 and a serrated ring 309, the workpiece pallet 308 rotates during the process of transporting the workpiece from the initial inspection station to the re-inspection station. This allows for better workpiece inspection through the adaptation of lighting conditions and camera parameters at the new inspection station of the second inspection mechanism 303. Simultaneously, the 180-degree rotation of the workpiece changes its relative angle with the light source and camera at the re-inspection station, causing the defects identified during the initial inspection to shift in position. By combining and comparing the results of the two inspections, it is determined whether the defect is a genuine defect or caused by exposure issues, reducing the probability of missed or incorrect defect detection due to a single observation dimension and ensuring more accurate and reliable re-inspection results.

[0036] In traditional methods, when a workpiece is re-inspected, its removal disrupts the workpiece sequencing of the entire production line. This disordered sequencing leads to subsequent processes, such as assembly, packaging, and label matching, failing to match the workpiece information as originally planned. This can result in mismatches between workpieces and specifications, increasing the risk of quality problems like incorrect assembly and labeling. Furthermore, restoring the correct sequencing requires pausing the production line or investing extra time in manually sorting and adjusting the workpiece order. This not only interrupts production and reduces overall efficiency but can also exacerbate the sequencing disorder due to human error, such as misplacing or omitting workpieces. It can even lead to the mistaken rejection of qualified workpieces or the inclusion of defective workpieces in the normal flow, affecting both production rhythm and final product quality. To address these technical problems, this application proposes the following improvements:

[0037] Please see Figure 3 , Figure 4 , Figure 5 As shown, the limiting component 4 includes a chute 401, which is opened on the top of the mounting bracket 1. An inverted T-shaped slider 402 is slidably connected inside the chute 401. A lifting mechanism 403 is installed on the top of the inverted T-shaped slider 402. A baffle 404 is installed at the output end of the lifting mechanism 403. The baffle 404 spans across the top of the main water line conveyor belt 2. A driven plate 405 is fixedly connected to the end of the baffle 404. The limiting component 4 also includes a deflector plate 408, which is fixedly connected to the surface of the plate chain conveyor belt 304. The deflector plate 408 corresponds one-to-one with the workpiece support plate 308. Two sets of chute 401 are symmetrically arranged about the vertical central axis of the mounting bracket 1. One set of mounting bracket 1 has a second electromagnet 407 at the end, and a first electromagnet 406 is fixedly connected to the side of the corresponding inverted T-shaped slider 402.

[0038] By using baffle 404, workpieces that have passed the initial inspection are prevented from being pushed back onto the main conveyor belt 2, thus allowing workpieces that have passed the re-inspection to return to their original positions. This ensures that the overall workpiece flow sequence remains unaffected, fundamentally avoiding a series of problems caused by disordered workpiece flow. It ensures that the workpieces on the entire production line always flow in the initially set sequence, and subsequent processes, such as assembly, processing, and labeling, can accurately correspond to the preset processes and parameters of each workpiece, effectively eliminating quality risks such as incorrect assembly, incorrect processing, and incorrect labeling caused by disordered sequence. On the other hand, no manual intervention is required to adjust the workpiece sequence, saving the production stoppage and manual sorting costs caused by disordered sequence, and avoiding operational errors that may be caused by manual adjustment. This ensures the continuity and stability of the production process, while allowing the re-inspection stage to accurately eliminate misjudgments such as metal reflection without affecting the overall production rhythm, achieving a highly efficient unity of inspection accuracy and production order.

[0039] An aluminum alloy wheel cover stop inspection device also includes a cover stop inspection system. The cover stop inspection system includes an inspection module, which comprises a preliminary inspection and a re-inspection module. The preliminary inspection is used to sequentially inspect all workpieces, and the re-inspection is used to perform a second inspection on workpieces with defects identified in the preliminary inspection, avoiding misjudgment. The cover stop inspection system also includes a control module, which includes a control mechanism for the inspection component 3, a control mechanism for the limiting component 4, and a control mechanism for the robotic arm 5. The control mechanism for the robotic arm 5 is used to control the robotic arm 5 to push the workpiece below the first inspection mechanism 302 for preliminary inspection, and when the workpiece is determined to be qualified, it is retrieved back above the main water supply conveyor belt 2. The control mechanism for the inspection component 3 is used for the preliminary inspection. When a workpiece is determined to be defective, the starter chain conveyor 304 is controlled to transport the workpiece to the area below the second inspection mechanism 303 for re-inspection. If the re-inspection is successful, the reset push rod 305 is controlled to push the workpiece back to the corresponding position on the main waterline conveyor belt 2. If the re-inspection determines that the workpiece is indeed defective, an NG alarm signal is triggered. The limiting component 4 control mechanism is used to de-energize the second electromagnet 407 when a workpiece needs to be re-inspected, and simultaneously control the lifting mechanism 403 to drive the baffle 404 to fall. After the re-inspected workpiece is determined to be successful, the lifting mechanism 403 is controlled to drive the baffle 404 to rise, and simultaneously control the second electromagnet 407 to be energized, driving the inverted T-shaped slider 402 to slide back to its initial position.

[0040] Working principle: After the wheel cover stop workpiece is machined, it is conveyed backward by the main waterline conveyor belt 2. The robotic arm 5 pushes the workpiece to the workpiece pallet 308 below the first inspection mechanism 302 for initial inspection. Workpieces without defects or deformation are considered qualified and are then brought back to the main waterline conveyor belt 2 by the robotic arm 5 for continued conveying. If the initial inspection identifies a defect in the workpiece, the control module controls the start-up plate chain conveyor belt 304. The plate chain conveyor belt 304 drives the workpiece pallet 308 to move the workpiece above it to the second inspection mechanism 303 for re-inspection. When the serrated ring 309 passes the serrated plate 306, it meshes with it, thereby driving the workpiece pallet 308 to rotate 180 degrees with the workpiece above it.

[0041] Simultaneously, the lifting mechanism 403 drives the baffle 404 to descend, and the driven plate 405 descends along with it. As the plate chain conveyor belt 304 moves, it also moves the actuating plate 408. The actuating plate 408 pushes the baffle 404 to slide along with it via the driven plate 405. During the re-inspection, the main waterline conveyor belt 2 and the first inspection mechanism 302 maintain continuous operation. Workpieces that pass the initial inspection return to the main waterline conveyor belt 2 and continue to be pushed forward. However, due to the obstruction of the baffle 404, workpieces that were originally behind the re-inspection workpieces are blocked. Workpieces blocked behind baffle 404 and re-inspected by the second inspection mechanism 303 are deemed qualified. If they are found to be qualified, the reset push rod 305 is activated to push them back onto the main water line conveyor belt 2. After re-inspection, the workpieces returned to the main water line conveyor belt 2 are located in front of baffle 404, thus allowing them to be arranged in their original sorting positions to ensure the correctness of the sorting. If the workpieces are still found to be defective after re-inspection, an NG signal is triggered, and the processing and inspection lines are stopped. Workers then investigate the cause of the defective workpieces.

[0042] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A device for detecting the stop edge of an aluminum alloy wheel cover, characterized in that, The device includes a mounting bracket, inside which a main water supply conveyor belt is installed. A detection component is mounted on the side of the mounting bracket. The detection component includes a support plate frame. A first detection mechanism and a second detection mechanism are mounted side-by-side on the top of the support plate frame. A reset push rod is mounted on the inner wall of the second detection mechanism. A plate chain conveyor belt is installed inside the support plate frame, and the conveying direction of the plate chain conveyor belt is consistent with the conveying direction of the main water supply conveyor belt. Several support columns are evenly distributed on the surface of the plate chain conveyor belt. A workpiece support plate is rotatably connected to the top of each support column. A limiting component is mounted on the top of the mounting bracket, and a robotic arm is mounted on the end of the support plate frame. The robotic arm is used to push the workpieces on the main water-line conveyor belt to the area below the first inspection mechanism for inspection. If the inspection identifies that the workpiece has no defects, the robotic arm will return the workpiece to the main water-line conveyor belt. If the inspection identifies that the workpiece has defects, the plate chain conveyor belt will be activated to transport the workpiece to the area below the second inspection mechanism for re-inspection. When any workpiece enters the re-inspection stage, the main water-line conveyor belt and the first inspection mechanism will maintain continuous operation. After the re-inspection is completed and the workpiece is determined to be qualified, the reset push rod will be activated to push it back to its original sorting position on the main water-line conveyor belt to ensure that the overall workpiece flow sequence is not affected. If the workpiece is determined to be unqualified, an NG alarm signal will be triggered.

2. The aluminum alloy wheel cover stop detection device according to claim 1, characterized in that: A serrated ring is fixedly connected to the bottom of the workpiece pallet, and the serrated ring is sleeved on the outside of the support column.

3. The aluminum alloy wheel cover stop detection device according to claim 1, characterized in that: The detection component also includes a serrated plate, which is fixedly connected to the inner wall of the support frame. The number of teeth on the serrated plate is set to half the number of teeth on the serrated ring. When the serrated ring moves with the plate chain conveyor belt and meshes with the serrated plate, it can drive the serrated ring to rotate the workpiece pallet 180 degrees.

4. The aluminum alloy wheel cover stop detection device according to claim 1, characterized in that: The limiting component includes a slide groove, which is formed on the top of the mounting bracket. An inverted T-shaped slider is slidably connected inside the slide groove, and a lifting mechanism is installed on the top of the inverted T-shaped slider.

5. The aluminum alloy wheel cover stop detection device according to claim 4, characterized in that: The output end of the lifting mechanism is equipped with a baffle, which spans across the main waterline conveyor belt. A driven plate is fixedly connected to the end of the baffle. The limiting component also includes a deflector plate, which is fixedly connected to the surface of the plate chain conveyor belt and corresponds one-to-one with the workpiece pallet.

6. The aluminum alloy wheel cover stop detection device according to claim 4, characterized in that: The slide groove is symmetrically arranged in two sets about the vertical central axis of the mounting bracket. One set of the mounting bracket is equipped with a second electromagnet at its end, and a first electromagnet is fixedly connected to the side of the corresponding inverted T-shaped slider.

7. The aluminum alloy wheel cover stop detection device according to claim 1, characterized in that: It also includes a cover stop detection system, which includes a detection module. The detection module includes a preliminary inspection and a re-inspection. The preliminary inspection is used to inspect all workpieces sequentially, and the re-inspection is used to perform a second inspection on workpieces that have defects in the preliminary inspection to avoid misjudgment.

8. The aluminum alloy wheel cover stop detection device according to claim 7, characterized in that: The cover stop detection system also includes a control module, which includes a detection component control mechanism, a limiting component control mechanism, and a robotic arm control mechanism. The robotic arm control mechanism is used to control the robotic arm to push the workpiece to the bottom of the first detection mechanism for initial inspection, and when the workpiece is determined to be qualified, to retrieve the workpiece back to the top of the main water line conveyor belt.

9. The aluminum alloy wheel cover stop detection device according to claim 8, characterized in that: The detection component control mechanism is used to control the start-up of the plate chain conveyor belt when the initial inspection determines that the workpiece has a defect, so as to transport the workpiece to the area below the second detection mechanism for re-inspection. When the re-inspection is qualified, the mechanism controls the reset push rod to push the workpiece back to the corresponding position on the main water line conveyor belt. When the re-inspection determines that the workpiece does have a defect, the mechanism triggers an NG alarm signal.

10. The aluminum alloy wheel cover stop detection device according to claim 8, characterized in that: The limited component control mechanism is used to de-energize the second electromagnet when a workpiece needs to be re-inspected, and at the same time control the lifting mechanism to drive the baffle to fall. After the re-inspected workpiece is determined to be qualified, the lifting mechanism is controlled to drive it to rise, and at the same time the second electromagnet is energized to drive the inverted T-shaped slider to slide back to the initial position.

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