Injection molded part surface detection device based on visual tracking and online detection method

Abstract

The application discloses a kind of based on visual tracking's injection molding piece surface detection device and online detection method, it is related to injection molding piece surface detection technical field, it includes detection table, the detection device further includes: turnover subassembly, the turnover subassembly includes: first electric push rod, lifting plate, second electric push rod, third motor, support, two third electric push rods and two clamping plates, first electric push rod is fixedly installed on the top of detection table, lifting plate is fixedly installed on the output shaft of first electric push rod, second electric push rod is fixedly installed on the back of lifting plate, the injection molding piece is automatically turned over by the application through turnover subassembly, solve the problem that traditional rotary platform cannot detect contact surface, placement component realizes multi-station automatic transposition and the rotation of single injection molding piece Change surface, then through detection component with single camera covers all surfaces, reduce equipment cost, overall improve detection coverage, accuracy and efficiency, strong practicality.

Description

Technical Field

[0001] This invention relates to the field of surface inspection technology for injection molded parts, and in particular to a vision tracking-based surface inspection device and online inspection method for injection molded parts. Background Technology

[0002] Injection molded parts are plastic products manufactured through the injection molding process. Injection molding is a common plastic processing method that involves injecting molten plastic material into a mold, where it cools and solidifies to form the desired plastic product. During the injection molding process, surface defects often appear on the injection molded parts, such as bubbles, black spots, scratches, and dents. In order to improve product quality and production efficiency, it is necessary to perform corresponding defect detection on the produced injection molded parts.

[0003] In existing technologies, surface defect detection devices for injection molded parts utilize cameras positioned at multiple angles to cover various angles of the part being inspected. The captured images are then transmitted to a computer for processing, ultimately achieving the effect of surface inspection. This results in high equipment costs. Some devices place the part on a rotating platform, allowing it to rotate 360 ​​degrees to inspect from all angles. However, this means the side of the part in contact with the rotating platform is never captured by the camera, significantly reducing the efficiency of the inspection equipment. To address these issues, we propose a vision-tracking-based surface inspection device and online inspection method for injection molded parts. Summary of the Invention

[0004] The purpose of this application is to provide a vision-tracking-based surface inspection device and online inspection method for injection molded parts, in order to solve the problem mentioned in the background art. Existing surface defect inspection devices for injection molded parts rely on setting cameras at multiple angles to cover various angles of the injection molded part being inspected, and then transmitting the captured images to a computer for processing to achieve the effect of inspecting the surface of the injection molded part. This results in high cost of the inspection equipment. Some inspection equipment also places the object to be inspected on a rotating platform, which rotates 360 degrees to achieve the effect of inspecting the object from various angles. However, this means that the side of the injection molded part that is in contact with the rotating platform cannot be captured by the camera, which greatly reduces the efficiency of the inspection equipment.

[0005] To achieve the above objectives, this application provides the following technical solution: a vision-tracking-based surface inspection device for injection molded parts, including an inspection table, and the inspection device further includes: The flipping assembly includes: a first electric push rod, a lifting plate, a second electric push rod, a third motor, a bracket, two third electric push rods, and two clamping plates. The first electric push rod is fixedly installed on the top of the testing table. The lifting plate is fixedly installed on the output shaft of the first electric push rod. The second electric push rod is fixedly installed on the rear side of the lifting plate. The output shaft of the second electric push rod passes through the lifting plate and is fixedly installed on the third motor. The rear side of the bracket is fixedly installed on the output shaft of the third motor. The two third electric push rods are respectively fixedly installed on the left and right sides of the bracket. The sides of the two clamping plates that are far apart from each other are respectively fixedly installed on the output shafts of the two third electric push rods. A second anti-slip pad is fixedly installed on one side of the clamping plate. A placement component is provided on the inspection table and is used to stably place and reposition the injection molded part. The detection component is located on top of the detection table and is used to efficiently detect the surface of the injection molded part. The second electric push rod drives the third motor and the bracket to move, positioning the two clamping plates on either side of the corresponding injection molded part. The third electric push rod then controls the clamping plates to hold the injection molded part. The second electric push rod then drives the third motor, the bracket, the two third electric push rods, the two clamping plates, and the injection molded part to move back to their original positions. At this point, the third motor is activated to rotate the bracket and the injection molded part, changing its orientation so that the bottom of the injection molded part faces upwards. The second electric push rod then repositions the injection molded part onto the top of the corresponding placement platform, achieving rapid flipping of the injection molded part. This exposes all surfaces, including contact surfaces, to the inspection field of view, solving the problem of traditional rotating platforms being unable to inspect contact surfaces. This improves inspection efficiency, reduces the number of cameras, lowers equipment costs, and the overall structure is automated and easy to operate, enhancing inspection coverage and accuracy.

[0006] Preferably, a first telescopic rod is fixedly installed on both the left and right sides of the lifting plate, and the bottom ends of the two first telescopic rods are fixedly installed on the top of the testing table. The first telescopic rods provide stable guidance for the movement of the lifting plate, prevent the lifting plate from tilting or shaking during the lifting process, ensure the accurate position of the flipping component, improve the stability of clamping and flipping, enhance the consistency of testing, and the first telescopic rod has a simple and reliable structure, which extends the service life of the component.

[0007] Preferably, a bearing seat is fixedly sleeved on the output shaft of the third motor, and a second telescopic rod is fixedly installed at the bottom of the bearing seat. The bottom end of the second telescopic rod is slidably connected to the top of the inspection table and fixedly sleeved on the output shaft of the third motor through the bearing seat. The second telescopic rod connects the bearing seat and the inspection table, providing additional support for the third motor, reducing vibration and offset during flipping, ensuring smooth rotation of the injection molded part, protecting the integrity of the injection molded part, and improving the flipping accuracy and reliability.

[0008] Preferably, the top of the testing platform is provided with a sliding groove, and the bottom end of the second telescopic rod is slidably connected in the sliding groove. The sliding groove provides precise guidance for the movement of the second telescopic rod, preventing the second telescopic rod from getting stuck or deviating, ensuring smooth movement of the third motor and the bracket, improving the response speed and positioning accuracy of the flipping assembly, and the sliding groove design is easy to maintain.

[0009] Preferably, a stabilizing rod is fixedly installed on each of the two clamping plates on the side away from each other. The ends of the two stabilizing rods that are away from each other pass through the inner walls of both sides of the bracket and are slidably connected to the bracket. The stabilizing rods provide guidance for the movement of the clamping plates, prevent the clamping plates from shifting during clamping, ensure uniform distribution of clamping force, and avoid slippage or damage to the injection molded parts. The slidable connection of the stabilizing rods to the bracket enhances the structural rigidity and improves clamping stability and safety.

[0010] Preferably, the placement assembly includes a first motor, a turntable, multiple second motors, and multiple placement stages. The first motor is fixedly installed at the bottom of the inspection stage, and its output shaft passes through the inspection stage and is fixedly installed at the bottom of the turntable. The multiple second motors are all fixedly installed at equal intervals in a ring at the bottom of the turntable, and their output shafts pass through the turntable and are rotatably connected to it. The bottom of each placement stage is fixedly installed on the output shaft of the corresponding second motor, and a first anti-slip pad is fixedly installed on the top of each placement stage. The first motor in the placement assembly drives the turntable to rotate, the multiple second motors drive the placement stages to adjust their angles, and the first anti-slip pads prevent the injection molded parts from shifting, thereby realizing automatic repositioning and positioning of multiple injection molded parts, allowing continuous inspection, improving overall inspection efficiency, reducing downtime, and optimizing the production process.

[0011] Preferably, multiple sliding rods are fixedly installed at the bottom of the turntable, and an annular groove is provided at the top of the detection platform. The bottom ends of the multiple sliding rods are slidably connected inside the annular groove. Through the cooperation of the sliding rods and the annular groove, a stable guide is provided for the rotation of the turntable, preventing the turntable from shaking or misaligning, ensuring the accurate position of the placement platform, improving the repositioning accuracy and detection repeatability, and reducing friction by sliding the sliding rods to the annular groove, thus extending the durability of the components.

[0012] Preferably, the detection assembly includes a support plate, an image processor, a camera, and a display screen. The bottom end of the support plate is fixedly mounted on the top of the detection table, the image processor is fixedly mounted on one side of the support plate, the camera is mounted on one side of the image processor, and the display screen is fixedly mounted on the top of the support plate. The image processor and camera are fixed by the support plate in the detection assembly, and the display screen displays the detection results, realizing visual tracking and efficient detection of the injection molded part surface. The camera covers all surfaces after flipping, and the image processor processes the data, reducing the dependence on multiple cameras, reducing costs, and improving detection flexibility and result reliability.

[0013] This invention also proposes an online inspection method for a vision-tracking-based injection molded part surface inspection device, comprising the following steps: S1: Connect the first motor, second motor, first electric push rod, second electric push rod, third motor, third electric push rod, image processor, camera and display screen to an external power source, and place the injection molded part to be tested on each placement platform in sequence. S2: Starting the first motor can drive the turntable and the multiple placement platforms on it to rotate, moving multiple injection molded parts to the detection position of the camera in sequence. When the injection molded parts are moved to the detection position of the camera, starting the corresponding second motor can drive the placement platform and the injection molded parts on it to rotate, realizing the detection operation of all surfaces except the bottom surface. S3: Then the second electric push rod is activated, pushing the third motor and bracket forward to position the two clamping plates on both sides of the injection molded part; subsequently, the third electric push rod is activated, driving the clamping plates to move towards the middle, thereby clamping the injection molded part; S4: The second electric push rod retracts, moving the clamped injection molded part backward to the detection position; then, the third motor starts, and with the support of the bearing seat and the second telescopic rod, it rotates the bracket and the injection molded part 180 degrees, so that the bottom surface that was originally in contact with the placement table faces upward; then, the second electric push rod moves forward again, placing the injection molded part back on the placement table, at which point all surfaces of the injection molded part are exposed within the field of view of the camera. S5: Finally, the camera begins to capture images of the surface of the injection molded part and transmits the captured images to the image processor; the image processor analyzes and processes the received images to detect whether there are defects such as bubbles, black spots, scratches, and dents on the surface of the injection molded part, and transmits the detection results to the display screen for display.

[0014] The beneficial effects of this invention are: 1. The second electric push rod drives the third motor and the bracket to move, so that the two clamping plates are located on both sides of the corresponding injection molded part. The third electric push rod is activated to control the clamping plates to hold the injection molded part. Then, the second electric push rod drives the third motor, the bracket, the two third electric push rods, the two clamping plates and the injection molded part to move back to their original positions. At this time, the third motor is activated to drive the bracket and the injection molded part to rotate and change the surface, so that the bottom of the injection molded part is facing upward. Then, the second electric push rod is used to place the injection molded part back on the top of the corresponding placement stage, realizing the rapid flipping of the injection molded part, so that all surfaces, including the contact surface, can be exposed to the inspection field of view. This solves the problem that the contact surface cannot be inspected by the traditional rotating platform, improves the inspection efficiency, reduces the number of cameras, reduces equipment costs, and the overall structure is automated and easy to operate, improving the inspection coverage and accuracy. 2. The first motor in the placement component drives the turntable to rotate, and multiple second motors drive the placement platform to adjust the angle. The first anti-slip pad prevents the injection molded parts from shifting, realizing automatic switching and positioning of multiple injection molded parts, allowing continuous inspection, improving overall inspection efficiency, reducing downtime, and optimizing the production process. 3. The image processor and camera are fixed by the support plate in the detection component, and the display screen shows the detection results, realizing visual tracking and efficient detection of the injection molded part surface. The camera covers all surfaces after flipping, and the image processor processes the data, reducing the dependence on multiple cameras, reducing costs, and improving detection flexibility and result reliability. This invention solves the problem that traditional rotary platforms cannot detect contact surfaces by automatically flipping injection molded parts through a flipping component. The placement component enables automatic repositioning of multiple workstations and rotational repositioning of a single injection molded part. Furthermore, the detection component uses a single camera to cover all surfaces, reducing equipment costs and improving overall detection coverage, accuracy, and efficiency, making it highly practical. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view of the structure according to an embodiment of this application; Figure 2 This is a three-dimensional rear view of the structure according to an embodiment of this application; Figure 3 This is a three-dimensional structural diagram of the first motor, turntable, second motor, placement platform, first anti-slip pad, and slide rod according to an embodiment of this application. Figure 4 This is a three-dimensional structural view of the first electric push rod, lifting plate, first telescopic rod, second electric push rod, third motor, bracket, third electric push rod, clamping plate, second anti-slip pad, stabilizer, second telescopic rod and bearing seat according to an embodiment of this application. Figure 5 This is a three-dimensional structural diagram of the support plate, image processor, camera, and display screen according to an embodiment of this application.

[0016] In the diagram: 1. Testing platform; 2. First motor; 3. Turntable; 4. Second motor; 5. Placement platform; 6. First anti-slip mat; 7. Sliding rod; 8. Annular groove; 9. First electric push rod; 10. Lifting plate; 11. First telescopic rod; 12. Second electric push rod; 13. Third motor; 14. Bracket; 15. Third electric push rod; 16. Clamping plate; 17. Second anti-slip mat; 18. Stabilizing rod; 19. Second telescopic rod; 20. Bearing seat; 21. Slide groove; 22. Support plate; 23. Image processor; 24. Camera; 25. Display screen. Detailed Implementation

[0017] The present invention will be further explained below with reference to specific embodiments.

[0018] refer to Figures 1-5This embodiment proposes a visual tracking-based surface inspection device for injection molded parts. The inspection device is based on an inspection platform 1, and the overall structure is arranged around the inspection platform 1. The inspection platform 1 is made of high-strength metal and the surface is treated with anti-rust to ensure long-term stability.

[0019] The flipping assembly is installed on the top of the testing platform 1. The first electric push rod 9 is fixed to the center of the top of the testing platform 1 with bolts, and its output shaft is vertically connected to the lifting plate 10. The lifting plate 10 is a rectangular metal plate, with a first telescopic rod 11 welded to the left and right sides respectively. The bottom end of the first telescopic rod 11 is fixed to the top of the testing platform 1 with bolts to form a vertical guide structure. The second electric push rod 12 is horizontally fixed to the rear side of the lifting plate 10, and its output shaft passes through the lifting plate 10 and is connected to the third motor 13. A bracket 14 is welded to the front end of the output shaft of the third motor 13. The bracket 14 is a U-shaped metal frame. The left and right sides are fixed with bolts to the third electric push rods 15. The output shafts of the two third electric push rods 15 are arranged opposite each other and connected to clamping plates 16. The clamping plates 16 are L-shaped metal plates. The inner side is attached with a second anti-slip pad 17 and the outer side is welded with a stabilizing rod 18. The stabilizing rod 18 passes through the two side walls of the bracket 14 and forms a sliding connection to ensure that the clamping plates 16 move smoothly. A bearing seat 20 is sleeved on the output shaft of the third motor 13. A second telescopic rod 19 is welded to the bottom of the bearing seat 20. A sliding groove 21 is opened on the top of the testing table 1. The bottom end of the second telescopic rod 19 is embedded in the sliding groove 21 to form a sliding connection.

[0020] The placement assembly is set above the testing table 1. The first motor 2 is fixed to the center of the bottom of the testing table 1 by bolts. Its output shaft passes through the testing table 1 and connects to the turntable 3. The turntable 3 is a circular metal disc. Multiple second motors 4 are installed at equal intervals in a ring at the bottom. The output shaft of each second motor 4 passes through the turntable 3 and connects to the placement table 5. The top of the placement table 5 is attached with a first anti-slip pad 6. Multiple sliding rods 7 are welded to the bottom of the turntable 3. An annular groove 8 is opened on the top of the testing table 1. The bottom end of the sliding rod 7 is embedded in the annular groove 8 to form a sliding connection.

[0021] The detection assembly is installed on one side of the top of the detection table 1. The support plate 22 is an L-shaped metal frame, and its bottom end is fixed to the top of the detection table 1 by bolts. The image processor 23 is fixed to the side wall of the support plate 22 by bolts. The camera 24 is installed on the side wall of the image processor 23. The display screen 25 is fixed to the top of the support plate 22.

[0022] This invention also proposes an online inspection method for a vision-tracking-based injection molded part surface inspection device, comprising the following steps: S1: Connect the first motor 2, the second motor 4, the first electric push rod 9, the second electric push rod 12, the third motor 13, the third electric push rod 15, the image processor 23, the camera 24 and the display screen 25 to the external power supply, and place the injection molded parts to be tested on each placement platform 5 in sequence. S2: Starting the first motor 2 can drive the turntable 3 and the multiple placement platforms 5 on it to rotate, and move the multiple injection molded parts to the detection position of the camera 24 in sequence. When the injection molded parts are moved to the detection position of the camera 24, starting the corresponding second motor 4 can drive the placement platform 5 and the injection molded parts on it to rotate, so as to realize the detection operation of all surfaces except the bottom surface. S3: Then the second electric push rod 12 is activated, pushing the third motor 13 and the bracket 14 forward, so that the two clamping plates 16 are on both sides of the injection molded part; subsequently, the third electric push rod 15 is activated, driving the clamping plates 16 to move towards the middle, thereby clamping the injection molded part. S4: The second electric push rod 12 retracts, moving the clamped injection molded part backward to the detection position; then, the third motor 13 starts, and under the support of the bearing seat 20 and the second telescopic rod 119, it drives the bracket 14 and the injection molded part to rotate 180 degrees, so that the bottom surface that was originally in contact with the placement platform 5 faces upward; then, the second electric push rod 12 moves forward again, placing the injection molded part back on the placement platform 5, at which point all surfaces of the injection molded part are exposed within the field of view of the camera 24; S5: Finally, camera 24 begins to capture images of the surface of the injection molded part and transmits the captured images to image processor 23; image processor 23 analyzes and processes the received images, detects whether there are defects such as bubbles, black spots, scratches, and dents on the surface of the injection molded part, and transmits the detection results to display screen 25 for display.

[0023] It should be noted that the specific models of the first motor 2, second motor 4, first electric actuator 9, second electric actuator 12, third motor 13, third electric actuator 15, image processor 23, camera 24, and display screen 25 used can be selected by those skilled in the art. Furthermore, the above-mentioned components such as the first motor 2, second motor 4, first electric actuator 9, second electric actuator 12, third motor 13, third electric actuator 15, image processor 23, camera 24, and display screen 25 are all existing technologies and will not be elaborated upon in this solution.

[0024] The image processor 23, camera 24 and display screen 25 adopt existing technology and can be directly used with the device structure of the patent application number 202323156552.5, so they will not be described in detail.

[0025] Working principle: In use, firstly, connect the first motor 2, the second motor 4, the first electric push rod 9, the second electric push rod 12, the third motor 13, the third electric push rod 15, the image processor 23, the camera 24, and the display screen 25 to an external power supply. Then, place the injection molded part to be tested sequentially on multiple placement platforms 5. The first anti-slip pad 6 prevents it from sliding. During testing, the second electric push rod 12 pushes the third motor 13 and the bracket 14 forward, so that the two clamping plates 16 are located on both sides of the injection molded part. The third electric push rod 15 is then activated. The drive clamp 16 holds the injection molded part, and the stabilizing rod 18 slides within the bracket 14 to ensure stable clamping. The second electric push rod 12 retracts, moving the injection molded part backward to the detection position. The third motor 13 starts, and through the support of the bearing seat 20 and the second telescopic rod 19, it drives the bracket 14 and the injection molded part to rotate 180 degrees, so that the bottom surface that was originally in contact with the placement table 5 faces upward. The second electric push rod 12 moves forward again, placing the injection molded part back on the placement table 5. At this time, all surfaces of the injection molded part are exposed within the field of view of the camera 24.

[0026] When the component is in operation, the first motor 2 drives the turntable 3 to rotate, and the slide bar 7 slides in the annular groove 8 to ensure smooth rotation. When it is necessary to adjust the angle of the injection molded part, the second motor 4 below the corresponding placement platform 5 is started, driving the placement platform 5 to rotate to the appropriate angle.

[0027] When the inspection component is working, the camera 24 captures images of the injection molded part surface and transmits them to the image processor 23. The image processor 23 analyzes and processes the images, detects surface defects, and transmits the results to the display screen 25 for display. Since the injection molded part is flipped, the camera 24 can complete all surface inspections without moving, reducing the number of cameras required.

[0028] This device achieves automatic flipping of injection molded parts through a flipping component, solving the problem that traditional rotary platforms cannot detect contact surfaces. The first telescopic rod 11 and the stabilizing rod 18 ensure smooth flipping and clamping processes, while the second telescopic rod 19 and the slide 21 work together to reduce vibration. The placement component enables automatic repositioning of multiple stations, improving detection efficiency. The detection component covers all surfaces through a single camera 24, reducing equipment costs. The overall structure has a high degree of automation, is easy to operate, and significantly improves detection coverage and accuracy.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A vision-tracking-based surface inspection device for injection molded parts, comprising an inspection table (1), characterized in that, The detection device also includes: The flipping assembly includes: a first electric push rod (9), a lifting plate (10), a second electric push rod (12), a third motor (13), a bracket (14), two third electric push rods (15), and two clamping plates (16). The first electric push rod (9) is fixedly installed on the top of the testing table (1). The lifting plate (10) is fixedly installed on the output shaft of the first electric push rod (9). The second electric push rod (12) is fixedly installed on the rear side of the lifting plate (10). The output shaft of the second electric push rod (12) passes through the lifting plate (10) and is fixedly installed on the third motor (13). The rear side of the bracket (14) is fixedly installed on the output shaft of the third motor (13). The two third electric push rods (15) are fixedly installed on the left and right sides of the bracket (14), respectively. The two clamping plates (16) are fixedly installed on the output shafts of the two third electric push rods (15) on opposite sides. A second anti-slip pad (17) is fixedly installed on one side of the clamping plate (16). Placement assembly, which is set on the inspection table (1), is used to stably place and reposition the injection molded parts; The detection component is located on the top of the detection table (1) and is used to efficiently detect the surface of the injection molded part.

2. The vision-tracking-based injection molded part surface inspection device according to claim 1, characterized in that, The lifting plate (10) is fixedly installed with first telescopic rods (11) on both the left and right sides, and the bottom ends of the two first telescopic rods (11) are fixedly installed on the top of the testing platform (1).

3. The vision-tracking-based injection molded part surface inspection device according to claim 1, characterized in that, A bearing seat (20) is fixedly sleeved on the output shaft of the third motor (13). A second telescopic rod (19) is fixedly installed at the bottom of the bearing seat (20). The bottom end of the second telescopic rod (19) is slidably connected to the top of the testing table (1).

4. The vision-tracking-based injection molded part surface inspection device according to claim 3, characterized in that, The top of the testing platform (1) is provided with a sliding groove (21), and the bottom end of the second telescopic rod (19) is slidably connected in the sliding groove (21).

5. The vision-tracking-based injection molded part surface inspection device according to claim 1, characterized in that, Stabilizing rods (18) are fixedly installed on the opposite sides of the two clamping plates (16). The opposite ends of the two stabilizing rods (18) pass through the inner walls of both sides of the bracket (14) and are slidably connected to the bracket (14).

6. The vision-tracking-based injection molded part surface inspection device according to claim 5, characterized in that, The placement assembly includes a first motor (2), a turntable (3), multiple second motors (4), and multiple placement platforms (5). The first motor (2) is fixedly installed at the bottom of the detection platform (1). The output shaft of the first motor (2) passes through the detection platform (1) and is fixedly installed at the bottom of the turntable (3). Multiple second motors (4) are fixedly installed at equal intervals in a ring at the bottom of the turntable (3). The output shafts of multiple second motors (4) pass through the turntable (3) and are rotatably connected to the turntable (3). The bottom of the placement platform (5) is fixedly installed on the output shaft of the corresponding second motor (4). The top of each of the multiple placement platforms (5) is fixedly installed with a first anti-slip pad (6).

7. The vision-tracking-based injection molded part surface inspection device according to claim 6, characterized in that, The bottom of the turntable (3) is fixedly equipped with multiple slide rods (7), and the top of the detection table (1) is provided with an annular groove (8). The bottom ends of the multiple slide rods (7) are slidably connected inside the annular groove (8).

8. The vision-tracking-based injection molded part surface inspection device according to claim 1, characterized in that, The detection assembly includes a support plate (22), an image processor (23), a camera (24), and a display screen (25). The bottom of the support plate (22) is fixedly installed on the top of the detection table (1), the image processor (23) is fixedly installed on one side of the support plate (22), the camera (24) is installed on one side of the image processor (23), and the display screen (25) is fixedly installed on the top of the support plate (22).

9. An online inspection method for a vision-tracking-based injection molded part surface inspection device, characterized in that, Includes the following steps: S1: Connect the first motor (2), the second motor (4), the first electric push rod (9), the second electric push rod (12), the third motor (13), the third electric push rod (15), the image processor (23), the camera (24) and the display screen (25) to the external power supply, and place the injection molded parts to be tested on each placement platform (5) in sequence; S2: Starting the first motor (2) can drive the turntable (3) and the multiple placement platforms (5) on it to rotate, and move the multiple injection molded parts to the detection position of the camera (24) in sequence. When the injection molded parts are moved to the detection position of the camera (24), starting the corresponding second motor (4) can drive the placement platform (5) and the injection molded parts on it to rotate, so as to realize the detection operation of all surfaces except the bottom surface. S3: Then the second electric push rod (12) is activated, pushing the third motor (13) and the bracket (14) forward, so that the two clamping plates (16) are on both sides of the injection molded part; subsequently, the third electric push rod (15) is activated, driving the clamping plates (16) to move towards the middle, thereby clamping the injection molded part; S4: The second electric push rod (12) retracts, driving the clamped injection molded part to move backward to the detection position; then, the third motor (13) starts, and under the support of the bearing seat (20) and the second telescopic rod 1 (19), it drives the bracket (14) and the injection molded part to rotate 180 degrees, so that the bottom surface that was originally in contact with the placement table (5) faces upward; then, the second electric push rod (12) moves forward again, and puts the injection molded part back on the placement table (5). At this time, all surfaces of the injection molded part are exposed within the field of view of the camera (24); S5: Finally, the camera (24) begins to collect images of the surface of the injection molded part and transmits the collected images to the image processor (23); the image processor (23) analyzes and processes the received images, detects whether there are defects such as bubbles, black spots, scratches, and dents on the surface of the injection molded part, and transmits the detection results to the display screen (25) for display.

Images