An automobile paint surface defect automatic identification and classification detection device

Abstract

The utility model relates to the field of automobile detection technology discloses a kind of automobile paint surface defect automatic identification and classification detection device, including installation frame, the inside fixed connection of installation frame has installation bottom plate, the top fixed connection of installation bottom plate has anti-offset mechanism, the top fixed connection of installation frame has detection table, the outside left and right sides of detection table are all fixedly connected with connecting plate, the outside upper and lower ends of connecting plate are all fixedly connected with dismounting mechanism.In the utility model, the driving motor drives the rotation of the driving rod, and the driven rod is connected through the belt pulley group, so that the outer driving plate drives the operation of the follower plate, and then the sliding plate slides along the fixed block, and the baffle is contacted with the automobile shell by the support plate, which is automatically driven and stable and reliable.The baffle can effectively fix the automobile shell, avoid deviation during detection, improve detection accuracy and efficiency, and ensure the stability of the detection process.

Description

Technical Field

[0001] This utility model relates to the field of automotive inspection technology, and in particular to an automatic identification and classification detection device for automotive paint defects. Background Technology

[0002] The automatic identification and classification detection device is a device that automatically identifies and classifies surface defects of objects by image acquisition and algorithm analysis. It features high detection accuracy, high efficiency, and continuous operation. Its core application is in product quality control in industrial production. It is closely related to the detection of defects in automobile paint. Automobile paint is prone to defects such as scratches, bulges, and color differences. Manual inspection is inefficient and prone to missing defects. This device can achieve accurate identification and classification of defects.

[0003] In some existing technologies, automatic identification and classification detection devices for automotive paint defects first use a high-resolution industrial camera in conjunction with a ring light source to acquire full-area images of the vehicle's paint surface, ensuring no blind spots in illumination and accurately capturing the detailed features of defects such as scratches, dents, runs, and pinholes. Then, the acquired images are transmitted to an image processing module, where they undergo preprocessing such as grayscale conversion, noise reduction, and edge enhancement to highlight the grayscale differences between the defective areas and the normal paint surface.

[0004] However, in actual use, the algorithm of the detection device is usually based on the preset body coordinates to mark the defect location. If the body is offset, the scratch that should be in the "middle of the door" will be identified as the non-detection area of ​​the "edge of the door", resulting in the failure to detect the real defect. At the same time, the body offset causes the shadows and edges of the body structural parts to be misidentified by the algorithm as paint defects such as "scratches" and "dents", resulting in the misjudgment of qualified parts as unqualified parts, which requires a second manual review. In order to address the above problems, an automatic identification and classification detection device for automotive paint defects is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automatic identification and classification detection device for automotive paint defects, aiming to improve the problem that some existing automatic identification and classification detection devices for automotive paint defects are difficult to prevent the vehicle body from deviating.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic identification and classification detection device for automotive paint defects includes a mounting frame, an internal mounting base plate fixedly connected to the mounting frame, an anti-offset mechanism fixedly connected to the top of the mounting base plate, a detection platform fixedly connected to the top of the mounting frame, connecting plates fixedly connected to the left and right sides of the detection platform, and disassembly and assembly mechanisms fixedly connected to the upper and lower ends of the connecting plates.

[0008] The anti-deviation mechanism includes a motor, which is externally fixedly connected to the top right side of the mounting base plate. A transmission assembly is fixedly connected to the drive end of the motor, and an active rod is fixedly connected to the drive end of the motor. A drive plate is fixedly connected to the outside of the active rod, and follower plates are rotatably connected to both the front and rear sides of the drive plate. A sliding plate is rotatably connected to the outside of the follower plate, and a support plate is fixedly connected to the top of the sliding plate. A baffle is fixedly connected to the top of the support plate, and a limit assembly is fixedly connected to the top of the mounting base plate.

[0009] As a further description of the above technical solution:

[0010] The transmission assembly includes a pulley set, the pulley set is externally fixedly connected to the drive end of the motor, and the other end of the pulley set is fixedly connected to a driven rod;

[0011] As a further description of the above technical solution:

[0012] The limiting component includes multiple support rods, which are externally fixedly connected to the left and right sides of the mounting base plate, and a fixing block is fixedly connected to the top of the support rods.

[0013] As a further description of the above technical solution:

[0014] The top left and right sides of the testing platform are fixedly connected to connecting frames. The two connecting frames are fixedly connected to the outside of the connecting plate. The inside of the connecting plate is slidably connected to a mounting bracket, and multiple testing instruments are fixedly connected inside the mounting bracket.

[0015] As a further description of the above technical solution:

[0016] The disassembly and assembly mechanism includes a second mounting frame, which is externally fixedly connected to the front and rear sides of the connecting plate. A connecting shaft is internally fixedly connected to the second mounting frame, and a rotating plate is rotatably connected to the external side of the connecting shaft. A positioning rod is externally fixedly connected to the external side of the rotating plate.

[0017] As a further description of the above technical solution:

[0018] The rotating plate is externally fixedly connected to multiple telescopic rods, and a return spring is sleeved on the outside of each telescopic rod.

[0019] As a further description of the above technical solution:

[0020] A pull plate is fixedly connected to the outside of the rotating plate, and the pull plate is rotatably connected to the outside of the mounting bracket two.

[0021] As a further description of the above technical solution:

[0022] One end of the reset spring is fixedly connected to the outside of the rotating plate, and the other end of the reset spring is fixedly connected to the outside of the connecting plate.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the starter motor drives the active rod to rotate, which in turn drives the driven rod through the pulley group, causing the external drive plate of both to drive the follower plate to rotate, thereby allowing the sliding plate to slide along the fixed block. The support plate pushes the baffle to contact the car body. The automated drive is stable and reliable. The baffle can effectively fix the car body, avoid deviation during detection, improve detection accuracy and efficiency, and ensure the stability of the detection process.

[0025] 2. In this utility model, pressing the pull plate causes the rotating plate to squeeze the telescopic rod and the return spring, which drives the positioning rod to disengage from the first mounting bracket. It can be disassembled by pulling. When installing, the first mounting bracket is put back, the pull plate is released, and the spring rebounds to lock the positioning rod in place. No tools are required for disassembly and assembly, and the operation is simple. The return spring ensures that the locking is stable, which facilitates the maintenance and replacement of the testing instrument and improves the convenience and reliability of the device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an automatic identification and classification detection device for automotive paint defects proposed in this utility model.

[0027] Figure 2 This is a schematic diagram of the pulley assembly of an automatic identification and classification detection device for automotive paint defects proposed in this utility model.

[0028] Figure 3 This is a schematic diagram of the connecting plate of an automatic identification and classification detection device for automotive paint defects proposed in this utility model.

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Mounting frame; 2. Mounting base plate; 3. Motor; 4. Driving rod; 5. Pulley assembly; 6. Driven rod; 7. Drive plate; 8. Follower plate; 9. Sliding plate; 10. Support plate; 11. Baffle; 12. Support rod; 13. Fixing block; 14. Connecting frame; 15. Connecting plate; 16. Mounting bracket one; 17. Testing instrument; 18. Mounting bracket two; 19. Connecting shaft; 20. Rotating clamping plate; 21. Telescopic rod; 22. Return spring; 23. Positioning clamping rod; 24. Pull plate; 25. Testing table. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of an automatic identification and classification detection device for automotive paint defects, including a mounting frame 1. The mounting frame 1 serves as the basic support structure for the entire device, bearing the weight of all components and ensuring overall rigidity to prevent deformation due to vibration during detection. A mounting base plate 2 is fixedly connected inside the mounting frame 1. The mounting base plate 2 provides a mounting reference surface for core components such as the anti-deviation mechanism, and its high-precision flatness ensures accurate installation of each component. A combination of positioning pins and bolts ensures the relative position of the base plate and the frame is fixed, preventing displacement after long-term use. An anti-deviation mechanism is fixedly connected to the top of the mounting base plate 2, and a detection platform 25 is fixedly connected to the top of the mounting frame 1. The detection platform 25 is used for placing... The worktable for the automotive parts to be inspected has high-precision flatness to ensure a unified inspection benchmark. The left and right sides of the inspection table 25 are fixedly connected to the connecting plates 15. The connecting plates 15 serve as the connection medium between the disassembly and assembly mechanism and the inspection table 25. The waist-shaped mounting holes allow the disassembly and assembly mechanism to make fine adjustments to ensure the accurate position of each part. The upper and lower ends of the connecting plates 15 are fixedly connected to the disassembly and assembly mechanism. The disassembly and assembly mechanism includes a second mounting bracket 18, which provides the mounting base for other parts of the disassembly and assembly mechanism. The U-shaped structure provides rotation space for the rotating clamp 20. The rounded corners prevent hand scratches during operation. The second mounting bracket 18 is fixedly connected to the front and rear sides of the connecting plate 15. The connecting shaft 19 is fixedly connected to the inside of the second mounting bracket 18.

[0034] Specifically, the mounting frame 1 provides rigidity and prevents deformation, while the mounting base plate 2 provides a precise installation benchmark. The testing table 25 acts as a workbench to ensure uniform benchmarks, and the connecting plate 15 provides intermediate connections and allows for fine adjustments. The mounting bracket 2 18 in the disassembly and assembly mechanism provides for component installation and prevents scratches. Overall, the device is stable, and the positioning of each component is accurate, improving the reliability of testing and the safety of operation.

[0035] The connecting shaft 19 provides a rotation center for the rotating clamp 20. Chrome plating enhances surface hardness and wear resistance, ensuring accuracy even after long-term rotation. Precision fit tolerances guarantee smooth, unobstructed rotation of the rotating clamp 20 while reducing radial wobble. The rotating clamp 20 is externally rotatably connected to the connecting shaft 19. The rotating clamp 20 rotates around the connecting shaft 19 to open and close the positioning lever 23: closing it secures the component, while opening it facilitates component disassembly. The arc-shaped design optimizes force distribution and avoids stress concentration. The positioning lever 23 is externally fixedly connected to the rotating clamp 20. The positioning lever 23 is the core component for securing the component, limiting its displacement by inserting it into the positioning hole of the component to be installed. The wedge-shaped design enhances the clamping effect, automatically increasing the clamping force as external force increases. Multiple telescopic rods 21 are externally fixedly connected to the rotating clamp 20. The telescopic rods 21 serve as the return spring 22. Provides guidance and support to ensure that the spring always extends and retracts in the preset direction, avoiding torsion failure; the hinged connection adapts to the angle change of the rotating plate 20, ensuring that the spring force can be effectively transmitted; the telescopic rod 21 is fitted with a return spring 22, which provides a continuous clamping force for the positioning rod 23, ensuring that the parts to be installed will not loosen under the vibration of the equipment operation; the reasonable elasticity design allows the operator to easily open the plate by simply pulling the pull plate 24, realizing quick disassembly and assembly, improving maintenance efficiency; the external fixed connection of the rotating plate 20 is the pull plate 24, which serves as an operating handle, making the opening and closing operation of the rotating plate 20 more effortless through the lever principle; the anti-slip handle improves the grip stability and prevents slippage during operation; the appropriate length design balances the operating force and operating space, allowing the operator to easily complete the disassembly and assembly actions; the external rotatable connection of the pull plate 24 is to the outside of the mounting bracket 2 18;

[0036] Specifically, the connecting shaft 19 allows the rotating clamping plate 20 to rotate smoothly and is wear-resistant; the rotating clamping plate 20 drives the positioning clamping rod 23 to open and close, and the wedge-shaped clamping rod enhances the fixation; the telescopic rod 21 guides the return spring 22 to provide continuous clamping force for the clamping rod; the pull plate 24 is easy to operate by lever principle. The whole system ensures that the components are fixed and stable, and are resistant to vibration. The disassembly and assembly are labor-saving and efficient, improving the convenience and reliability of device maintenance.

[0037] The anti-deviation mechanism includes a motor 3, which is externally fixed to the top right side of the mounting base plate 2. A transmission assembly is fixedly connected to the drive end of the motor 3. The transmission assembly includes a pulley set 5, which consists of a driving pulley, a driven pulley, and a synchronous belt. The driving pulley is fixed to the drive end of the motor 3 via a key connection. The pulley set 5 is externally fixed to the drive end of the motor 3. A driven rod 6 is fixedly connected to the other end of the pulley set 5. The driven rod 6 transmits power from the pulley set 5 to the drive mechanism on the other side, achieving synchronous operation of the clamping devices on both sides. The stepped shaft design facilitates the positioning and installation of bearings and transmission components; chrome plating enhances wear resistance; and precision fit ensures secure power transmission. The drive end of motor 3 is fixedly connected to the drive rod 4, which directly transmits the power of motor 3 to drive plate 7. The coupling compensates for installation errors to ensure smooth power transmission. The deep groove ball bearing reduces rotational resistance and ensures smooth rotation. Drive plate 7 is fixedly connected to the outside of drive rod 4. Drive plate 7 converts the rotational motion of drive rod 4 into the swinging motion of follower plate 8 through eccentric structure. Two symmetrical pin holes ensure that the follower plates 8 on the front and rear sides move synchronously. Follower plates 8 are rotatably connected to the outside of drive plate 7 on both the front and rear sides. Follower plates 8 act as transmission media, transmitting the rotational motion of drive plate 7 to sliding plate 9 to realize linear motion conversion. Sliding plate 9 is rotatably connected to the outside of follower plate 8.

[0038] Specifically, in the anti-deviation mechanism, the motor 3 transmits power through the pulley group 5, driven rod 6 and driving rod 4 to ensure synchronous clamping on both sides. The driving rod 4 uses a coupling to compensate for errors and bearings to reduce resistance. The drive plate 7 rotates the follower plate 8 to swing, and the follower plate 8 then rotates the sliding plate 9 to move linearly. The whole system achieves stable power transmission and synchronous action, ensuring anti-deviation clamping and improving detection accuracy.

[0039] Driven by the follower plate 8, the sliding plate 9 reciprocates linearly along the guide rail, realizing the opening and closing action of the clamping mechanism; the T-shaped structure ensures balanced force, and the slider and guide rail cooperate to ensure the linearity of the movement; chrome plating improves surface hardness and reduces sliding friction resistance. A support plate 10 is fixedly connected to the top of the sliding plate 9, which transmits the power of the sliding plate 9 to the baffle 11, and at the same time raises the installation height of the baffle 11 to accommodate workpieces of different sizes. The baffle 11 is fixedly connected to the top of the support plate 10. The baffle 11 is the part that directly contacts the workpiece, and the workpiece is centered and positioned by the synchronous movement of both sides; To increase friction and prevent workpiece slippage, a limiting component is fixedly connected to the top of the mounting base plate 2. The limiting component includes multiple support rods 12, which provide stable support for the fixed block 13 to ensure reliable limiting function. Polishing reduces friction with other components, and uniform spacing ensures balanced distribution of limiting force, avoiding force concentration on the sliding plate 9. The support rods 12 are externally fixedly connected to the left and right sides of the mounting base plate 2, and a fixed block 13 is fixedly connected to the top of the support rods 12. The fixed block 13 limits the maximum stroke of the sliding plate 9 by contacting it. Rubber buffer pads absorb impact energy to avoid damage caused by rigid collisions.

[0040] Specifically, the sliding plate 9 moves linearly along the guide rail to ensure precise clamping and opening / closing; the T-shaped structure distributes force evenly; the support plate 10 transmits force and adjusts the height of the baffle 11; the baffle 11 centers to position the workpiece and prevent slippage; the support rod 12 in the limiting assembly stably supports the fixing block 13; the fixing block 13 limits the stroke of the sliding plate 9; and the rubber pad prevents collisions. Overall, the system ensures accurate workpiece positioning and stable movement, protects components to reduce damage, and improves the reliability of testing.

[0041] Reference Figures 2 to 4 The top left and right sides of the inspection table 25 are fixedly connected to the connecting frames 14. The connecting frames 14 serve as the installation support structure for the inspection instruments 17, providing a stable installation base for the connecting plate 15 and the inspection components. The two connecting frames 14 are fixedly connected to the outside of the connecting plate 15. The connecting plate 15 is slidably connected to the mounting bracket 16. The mounting bracket 16 is used to support the inspection instruments 17 and can slide up and down along the connecting plate 15 to achieve height adjustment, adapting to the inspection needs of workpieces of different heights. Multiple inspection instruments 17 are fixedly connected inside the mounting bracket 16. The inspection instruments 17 are the core components for realizing paint surface defect identification and classification: a high-definition camera captures paint surface images, an LED light source provides uniform illumination to ensure image clarity, a spectrum analyzer assists in identifying subtle color difference defects, and one end of the return spring 22 is fixedly connected to the outside of the rotating plate 20, while the other end of the return spring 22 is fixedly connected to the outside of the connecting plate 15.

[0042] Specifically, the connecting frame 14 provides stable support for the detection components, the mounting bracket 16 can slide up and down to adjust its height to adapt to different workpieces, and the detection instrument 17 accurately identifies paint defects using a high-definition camera, light source, and spectrometer; the reset spring 22 ensures the clamping force. Overall, the device achieves strong detection adaptability and accurate identification, improving its practicality and reliability.

[0043] Working principle: By starting the motor 3, the motor 3 drives the active rod 4 to rotate, which in turn drives the driven rod 6 to rotate via the pulley set 5. This causes the drive plate 7 outside the active rod 4 and driven rod 6 to rotate, which in turn drives the follower plates 8 on the front and rear sides to rotate. The follower plates 8 then drive the sliding plate 9 to slide outside the fixed block 13. As the sliding plate 9 slides, it drives the baffle 11 through the support plate 10 to contact the car body, thus preventing the car body from shifting during the detection process.

[0044] When disassembling and assembling the testing instrument 17 inside the mounting bracket 16, pressing the pull plate 24 causes the pull plate 24 to press the telescopic rod 21 through the rotating clamping plate 20. This, in turn, compresses the return spring 22 outside the telescopic rod 21, causing the return spring 22 to deform. This allows the rotating clamping plate 20 to drive the positioning clamping rod 23 to separate from the mounting bracket 16. At this moment, by pulling the mounting bracket 16, it can be removed from the outside of the connecting plate 15, thus enabling the disassembly of the mounting bracket 16. By placing the mounting bracket 16 inside the connecting plate 15, releasing the pull plate 24 causes the return spring 22 outside the telescopic rod 21 to spring back, allowing the rotating clamping plate 20 to drive the positioning clamping rod 23 to lock into the mounting bracket 16, thus enabling the installation of the mounting bracket 16.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic identification and classification detection device for automotive paint defects, comprising a mounting frame (1), characterized in that: The mounting frame (1) is fixedly connected to the mounting base plate (2), the top of the mounting base plate (2) is fixedly connected to the anti-offset mechanism, the top of the mounting frame (1) is fixedly connected to the detection platform (25), the left and right sides of the detection platform (25) are fixedly connected to the connecting plate (15), and the upper and lower ends of the connecting plate (15) are fixedly connected to the disassembly and assembly mechanism. The anti-deviation mechanism includes a motor (3), which is externally fixedly connected to the top right side of the mounting base plate (2). The drive end of the motor (3) is fixedly connected to a transmission assembly. The drive end of the motor (3) is fixedly connected to an active rod (4). The drive rod (4) is externally fixedly connected to a drive plate (7). The front and rear sides of the drive plate (7) are rotatably connected to follower plates (8). The follower plates (8) are rotatably connected to a sliding plate (9). The top of the sliding plate (9) is fixedly connected to a support plate (10). The top of the support plate (10) is fixedly connected to a baffle (11). The top of the mounting base plate (2) is fixedly connected to a limit assembly.

2. The automatic identification and classification detection device for automotive paint defects according to claim 1, characterized in that: The transmission assembly includes a pulley group (5), which is externally fixedly connected to the drive end of the motor (3), and the other end of the pulley group (5) is fixedly connected to a driven rod (6).

3. The automatic identification and classification detection device for automotive paint defects according to claim 1, characterized in that: The limiting component includes multiple support rods (12), which are externally fixedly connected to the left and right sides of the mounting base plate (2), and a fixing block (13) is fixedly connected to the top of the support rods (12).

4. The automatic identification and classification detection device for automotive paint defects according to claim 3, characterized in that: The top left and right sides of the testing platform (25) are fixedly connected to the connecting frame (14). The two connecting frames (14) are fixedly connected to the outside of the connecting plate (15). The connecting plate (15) is slidably connected to the mounting bracket (16). Multiple testing instruments (17) are fixedly connected inside the mounting bracket (16).

5. The automatic identification and classification detection device for automotive paint defects according to claim 4, characterized in that: The disassembly and assembly mechanism includes a second mounting bracket (18), which is externally fixedly connected to the front and rear sides of the connecting plate (15). The second mounting bracket (18) is internally fixedly connected to a connecting shaft (19), and the connecting shaft (19) is externally rotatably connected to a rotating plate (20). The rotating plate (20) is externally fixedly connected to a positioning rod (23).

6. The automatic identification and classification detection device for automotive paint defects according to claim 5, characterized in that: The rotating plate (20) is fixedly connected to a plurality of telescopic rods (21), and a return spring (22) is sleeved on the outside of the telescopic rods (21).

7. The automatic identification and classification detection device for automotive paint defects according to claim 6, characterized in that: The rotating plate (20) is fixedly connected to a pull plate (24), and the pull plate (24) is rotatably connected to the outside of the mounting bracket (18).

8. The automatic identification and classification detection device for automotive paint defects according to claim 6, characterized in that: One end of the reset spring (22) is fixedly connected to the outside of the rotating plate (20), and the other end of the reset spring (22) is fixedly connected to the outside of the connecting plate (15).

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