Six-group optical camera inspection machine

Abstract

The utility model discloses a kind of six-group optical camera detection machines, comprising: support frame, multiple optical cameras, material distributing port component and feeding assembly, support frame upper is equipped with support table, support table upper is equipped with circular support plate, lifting device is equipped between circular support plate and support table;Multiple optical cameras include the first optical camera, second optical camera and third optical camera being set along the circumference of circular support plate, the first optical camera is used to detect coil surface breakage, the second optical camera is used to detect coil front face defect, and the third optical camera is used to capture coil bottom defect;Material distributing port component is set along the circumference of circular support plate, material distributing port component is located opposite second optical camera, material distributing port component includes material distributing port adjusting block and material distributing port hand frame;Feeding assembly includes vibration disc, feeding track, straight shock adjusting plate and discharge adjusting block connected in sequence, and discharge adjusting block is used to adjust the position of coil.

Description

Technical Field

[0001] This utility model belongs to the field of inductor coil technology, and specifically relates to a six-group optical camera inspection machine. Background Technology

[0002] In the field of electronic component manufacturing, inductors, as key basic components, are widely used in communication equipment, automotive electronics, medical instruments, and other fields. Their core function relies on the electromagnetic characteristics of the coil, and the stamping, forming, surface treatment, and dimensional accuracy of the coil leads directly determine the product's performance and reliability. In the traditional production process of inductors, coil inspection mainly relies on manual visual inspection or a single mechanical inspection device, which suffers from high subjectivity and a high rate of missed detections. Manual inspection efficiency is limited by the operator's workload and lacks the ability to identify minute defects (such as lead surface oxidation and stamping flatness deviation). Mechanical inspection devices, due to the limited accuracy of sensors, cannot comprehensively cover multi-dimensional defects on the coil surface, front, bottom, and leads, leading to defective products flowing into subsequent processes and increasing rework costs; furthermore, there are insufficient sorting and classification capabilities. In existing technologies, coil sorting is usually based on simple physical screening (such as weight or size), which cannot distinguish the type of coil defect (such as severe breakage, minor damage, and unstamped leads). This leads to an inflated scrap rate and significant resource waste. Furthermore, slightly damaged coils may be mistakenly identified as scrap, impacting overall production efficiency. In addition, traditional production lines lack real-time data feedback mechanisms in their inspection and sorting processes, making it impossible to adjust parameters (such as vibration frequency and feeding speed) of equipment like vibratory feeders and direct-drive conveyor systems in a timely manner. This causes coils to easily jam or misalign during transport, affecting inspection accuracy and production efficiency. More importantly, existing inspection systems mostly use a single light source and a fixed camera, which cannot adapt to the inspection needs of different parts of the coil (e.g., surface oxidation requires a high-contrast light source, and pin spacing requires high-resolution imaging). The fixed parameters of the light source and camera mean that some defects (such as cracks in dark areas and scratches in reflective areas) cannot be effectively detected.

[0003] In summary, existing technologies suffer from problems such as insufficient detection accuracy, low sorting efficiency, lagging process parameter adjustment, poor coordination between light source and camera, and lack of intelligent management in the inductor coil pin processing stage. There is an urgent need for a systematic solution that integrates multiple optical cameras, automated sorting, and real-time data feedback to improve production efficiency, reduce defect rates, and achieve refined management. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an inductor coil pin processing system and method based on multi-optical camera collaborative detection and automated sorting, so as to solve the problems of insufficient accuracy, low sorting efficiency and lagging process parameter adjustment in traditional detection, thereby improving production efficiency, reducing defect rate and realizing intelligent management.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: a six-group optical camera inspection machine, comprising: a support frame, a support platform above the support frame, a circular support plate above the support platform, and a lifting device between the circular support plate and the support platform;

[0006] Multiple optical cameras are provided, including a first optical camera, a second optical camera, and a third optical camera arranged along the circumference of the circular support plate. The first optical camera is used to detect surface damage of the coil, the second optical camera is used to detect defects on the front side of the coil, and the third optical camera is used to capture defects on the bottom side of the coil.

[0007] The dispensing port assembly is arranged along the circumference of the circular support plate and is located opposite the second optical camera. The dispensing port assembly includes a dispensing port adjustment block and a dispensing port blower holder.

[0008] The feeding assembly includes a vibratory plate, a feeding track, a linear vibration adjustment plate, and a discharge adjustment block connected in sequence. The discharge adjustment block is used to adjust the position of the coil.

[0009] Compared to existing technologies, the advantages of this invention are as follows: This invention proposes an integrated, modular, and highly adjustable detection platform. By arranging multiple sets of optical cameras in a ring on a circular support plate, combined with a lifting device and adjustable bracket, it achieves high-precision imaging detection of the coil surface, front, bottom, and pins from all directions and multiple angles, effectively covering the blind spots of traditional detection. Multiple sets of optical cameras are distributed circumferentially along the circular support plate, performing omnidirectional detection of the coil from different angles: the first camera detects surface damage, the second camera identifies front defects, and the third camera captures bottom defects, achieving 360-degree coverage without blind spots and significantly improving the defect detection rate. The sorting port assembly is positioned opposite to the second camera, forming a linkage mechanism between detection and sorting, facilitating the timely removal of defective products. The feeding assembly consists of a vibrating plate, feeding track, vertical vibration adjustment plate, and discharge adjustment block, realizing automatic feeding, directional arrangement, and precise positioning of the coil, ensuring consistent product posture during each inspection and guaranteeing high-quality imaging. The system integrates precision mechanical transmission, multi-view visual inspection and automated sorting, realizing efficient, accurate and continuous automatic inspection of coil appearance quality. It significantly improves inspection efficiency and consistency, reduces reliance on manual labor and the risk of misjudgment, and is suitable for online quality control in the mass production environment of electronic components. It has good practicality and industrial application prospects.

[0010] The aforementioned testing machine also includes a through-beam fiber optic assembly, which is located between the feeding structure and the first optical camera, and is used for the positioning of the induction coil.

[0011] The aforementioned inspection machine further includes a fourth optical camera and a fifth optical camera arranged along the circumference of the circular support plate. The fourth optical camera is used to detect the stamping flatness of the coil pins and surface oxidation, and the fifth optical camera is used to detect the spacing between the coil pins and correct distortion through a calibration algorithm.

[0012] The aforementioned testing machine also includes a data cable box assembly. Each of the first optical camera, the second optical camera, the third optical camera, the fourth optical camera, and the fifth optical camera is equipped with an independent data cable box assembly. The data cable box assembly is used to connect each optical camera to the central control system and transmit testing data.

[0013] The aforementioned testing machine is equipped with a light source box on the first optical camera, the second optical camera, and the fourth optical camera. The light source box is used to provide uniform illumination to the coil and reduce shadows and reflections.

[0014] In the aforementioned testing machine, a discharge port is provided on one side of the material distribution port assembly. The discharge port is inclined, and the coil that has completed testing can be transported out along the discharge port.

[0015] The aforementioned testing machine also includes a display screen, which is suspended at the top center of the support frame and can monitor the real-time testing images of each optical camera.

[0016] The aforementioned testing machine also includes a storage cabinet below the support frame, which can be opened on three sides.

[0017] In the aforementioned testing machine, each of the multiple sets of optical cameras is provided with an optical camera mounting base. The optical camera adjustment bracket is fixed on the optical camera mounting base and can move back and forth and up and down along the optical camera mounting base.

[0018] In the aforementioned testing machine, the circular support plate is made of optical tempered glass. Attached Figure Description

[0019] Figure 1 This is one of the structural schematic diagrams of the testing machine according to an embodiment of the present utility model;

[0020] Figure 2 This is a second schematic diagram of the structure of the testing machine according to an embodiment of the present utility model;

[0021] Figure 3 This is the third schematic diagram of the structure of the testing machine according to an embodiment of the present utility model;

[0022] The following are the reference numerals: 100 Support frame, 110 Support platform, 111 Circular support plate, 112 Lifting device, 120 Storage cabinet, 200 Multiple optical cameras, 210 First optical camera, 220 Second optical camera, 230 Third optical camera, 240 Fourth optical camera, 250 Fifth optical camera, 260 Light source box, 270 Optical camera mounting base, 271 Optical camera adjustment bracket, 300 Distributor assembly, 310 Distributor adjustment block, 320 Distributor blower holder, 330 Discharge port, 400 Feeding assembly, 410 Vibrating plate, 420 Feeding track, 430 Straight vibration adjustment plate, 440 Discharge adjustment block, 500 Through-beam fiber optic assembly, 600 Data cable box assembly, 700 Display screen. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below, with reference to Figures 1 to 3This utility model provides a six-group optical camera inspection machine, including: a support frame 100, multiple optical cameras 200, a material dispensing port assembly 300, and a feeding assembly 400. A support platform 110 is provided above the support frame 100, and a circular support plate 111 is provided above the support platform 110. A lifting device 112 is provided between the circular support plate 111 and the support platform 110. The multiple optical cameras 200 include a first optical camera 210, a second optical camera 220, and a third optical camera 230 arranged along the circumference of the circular support plate 111. The first optical camera 210... The first optical camera 220 is used to detect surface damage to the coil, and the second optical camera 230 is used to detect defects on the front of the coil. The third optical camera 230 is used to capture defects on the bottom of the coil. The feed port assembly 300 is arranged around the circumference of the circular support plate 111 and is located opposite the second optical camera 220. The feed port assembly 300 includes a feed port adjustment block 310 and a feed port blower 320. The feeding assembly 400 includes a vibrating plate 410, a feeding track 420, a vertical vibration adjustment plate 430, and a discharge adjustment block 440 connected in sequence. The discharge adjustment block 440 is used to adjust the position of the coil. This application provides a six-camera inspection machine, which constructs a compact, functionally integrated, efficient, and stable automated visual inspection platform. A stable mechanical foundation is formed by the support frame 100, the support platform 110, and the circular support plate 111. A lifting device 112 is provided to realize flexible adjustment of the height of the inspection platform, adapting to the focal length requirements of coils of different specifications, and improving the versatility and inspection accuracy of the equipment. Multiple optical cameras 200 are distributed circumferentially along the circular support plate 111, performing omnidirectional inspection of the coil from different angles: the first camera detects surface damage, the second camera identifies front defects, and the third camera captures bottom defects, achieving 360-degree coverage without blind spots and significantly improving the defect detection rate. The sorting port assembly 300 is positioned opposite the second camera, forming a linkage mechanism between inspection and sorting, facilitating the timely removal of defective products. The feeding assembly 400 consists of a vibrating plate 410, a feeding track 420, a vertical vibration adjustment plate 430, and a discharge adjustment block 440, realizing automatic feeding, directional arrangement, and precise positioning of the coil, ensuring consistent product posture during each inspection and guaranteeing high-quality imaging. The overall system integrates precision mechanical transmission, multi-view visual inspection, and automated sorting, achieving efficient, accurate, and continuous automatic inspection of coil appearance quality, significantly improving inspection efficiency and consistency, reducing reliance on manual labor and the risk of misjudgment, and is suitable for online quality control in mass production environments of electronic components, possessing good practicality and industrial application prospects.

[0024] Furthermore, the detection machine proposed in this utility model also includes a through-beam fiber optic assembly 500, which is located between the feeding structure 400 and the first optical camera 210. The through-beam fiber optic assembly 500 is used to sense the position of the coil. The through-beam fiber optic assembly 500 consists of a transmitting end and a receiving end. When the coil passes through its optical path, it blocks the light, thereby accurately triggering the position signal. This signal serves as the "start command" for the entire detection process, accurately determining whether the coil has reached the predetermined detection starting point. Compared with traditional mechanical limit switches or proximity sensors, through-beam fiber optics have advantages such as fast response speed, high detection accuracy, non-contact measurement, no wear, and long lifespan. More importantly, it is not affected by the coil material, color, or surface reflectivity. It can be stably triggered as long as an object blocks the light path, avoiding false triggering or missed triggering problems caused by coil surface oxidation, oil stains, or differences in reflectivity. By placing this component between the end of the feeding structure 400 and the first optical camera 210, a closed-loop control logic of "inspection upon arrival" is formed: the system only activates the first optical camera 210 to acquire images after the through-beam fiber confirms that the coil has accurately entered the detection area. This effectively prevents the camera from taking false images when there is no target or the target is not in place, reducing the generation of invalid data and the waste of system resources. Simultaneously, this position signal can also serve as a synchronization reference for multi-camera collaborative shooting, ensuring that the five sets of cameras are triggered synchronously or sequentially at the optimal time, guaranteeing the temporal consistency of images from various angles, facilitating subsequent image stitching and comprehensive analysis. The system can immediately identify faults through the absence or abnormal duration of photoelectric signals, promptly alarming and suspending operation to prevent equipment damage or batch false detections. Therefore, this technical feature not only improves the automation and intelligence level of the detection process but also fundamentally guarantees the reliability and temporal accuracy of the detection data, making it a key link in achieving high-speed, high-precision, and high-stability online detection. Of course, this application does not limit the specific structure of the through-beam fiber assembly 500. Preferably, the through-beam fiber assembly 500 has a through-beam fiber support, which can drive the through-beam fiber assembly 500 to move.

[0025] Furthermore, the multiple optical cameras 200 also include a fourth optical camera 240 and a fifth optical camera 250 arranged along the circumference of the circular support plate 111. The fourth optical camera 240 is used to detect the flattening of the coil pins and surface oxidation, while the fifth optical camera 250 is used to detect the spacing between the coil pins and correct distortion through a calibration algorithm. The fourth optical camera 240 and the fifth optical camera 250 are used to detect the flattening of the coil pins, surface oxidation, and pin spacing, respectively, and the introduction of a calibration algorithm to correct distortion greatly expands the detection dimensions, realizing comprehensive quality control from macroscopic appearance defects to microscopic geometric parameters. The fourth optical camera 240 focuses on detailed inspection of the pin area, and can identify whether the pins have been correctly stamped to form a flattened shape (for subsequent soldering or insertion), and determine whether there are defects such as surface oxidation, corrosion, and plating peeling that affect conductivity. These types of defects are often difficult to detect with the naked eye, but are crucial to the electrical performance of the product, and are easily missed by traditional manual inspection. The fifth optical camera 250 is responsible for the precise measurement of pin spacing. Through high-resolution imaging combined with pixel calibration technology, it can achieve micron-level precision dimensional measurement, ensuring that the pin arrangement meets design tolerance requirements and preventing assembly difficulties or short-circuit risks due to spacing deviations. The two newly added cameras continue to be arranged in a ring along the circular support plate 111, maintaining the symmetry of the system structure and space utilization, avoiding overall structural imbalance or interference problems caused by the addition of equipment. The clear division of labor among the multiple cameras avoids the efficiency loss caused by frequent switching of the field of view or focal length of a single camera, enabling parallel detection and synchronous analysis, significantly improving the detection volume per unit time. Furthermore, the detection machine proposed in this application also includes a data cable box assembly 600. Each of the first optical camera 210, second optical camera 220, third optical camera 230, fourth optical camera 240, and fifth optical camera 250 is equipped with an independent data cable box assembly 600. The data cable box assembly 600 is used to connect each optical camera 200 to the central control system and transmit detection data. The independent data cable box assembly 600 achieves physical isolation and standardized interface management of the signal channels of each camera. Each camera transmits image data, status information, and trigger signals via a dedicated line, avoiding electromagnetic interference (EMI), crosstalk, or signal attenuation problems that can occur when multiple signals share cables. This is especially beneficial in industrial environments with numerous interference sources such as motors and frequency converters, ensuring high-fidelity image data transmission and preventing misjudgments due to signal distortion. Of course, this application does not limit the specific structure of the data cable box assembly 600. Preferably, the data cable box assembly 600 is fixed to the rear of the optical camera, and its end face has a data cable box cover to prevent foreign objects from entering. Operators do not need to directly operate the fragile camera interface; they can simply connect or replace components using the standardized plugs on the cable box, reducing operational difficulty and the probability of errors.When a camera needs maintenance, upgrade, or replacement, only the connection of the corresponding cable box needs to be disconnected, without affecting the normal operation of other cameras. This achieves "hot-swappable" modular maintenance capabilities, greatly reducing equipment downtime. Furthermore, the central control system receives data through independent channels, facilitating data traceability and fault diagnosis—if an image from a particular channel is abnormal, the system can quickly locate the specific camera and its connection link, improving troubleshooting efficiency. The data cable box assembly 600 can also integrate signal amplification or protocol conversion functions, adapting to camera equipment with long-distance transmission or different communication protocols, enhancing system compatibility and scalability.

[0026] Furthermore, the first optical camera 210, the second optical camera 220, and the fourth optical camera 240 are all equipped with a light source box 260. The light source box 260 is used to provide uniform illumination to the coil, reducing shadows and reflections. As an illumination device specifically designed for visual inspection, the light source box 260 typically integrates a high-brightness, low-heat LED array and is equipped with a diffuser plate, light guide plate, or reflective cavity structure, which can transform a point light source into a large-area, highly uniform surface light source. For objects with complex three-dimensional structures such as coils, their surfaces have various regions with different reflective properties, such as curved surfaces, grooves, and metal pins. Ordinary ambient light or simple supplementary lighting can easily cause local overexposure, shadows, or specular reflections, seriously affecting the camera's ability to identify defects. The light source box 260 of this application, through optimized optical design, ensures that light uniformly illuminates the surface of the object under test at a specific angle (such as low angle, coaxial, or ring), minimizing highlights and shadow areas, and making cracks, dents, or oxide spots that were originally hidden in shadows clearly visible. Especially when detecting pin stamping flatness (fourth camera) and front defects (second camera), uniform illumination can accurately reproduce subtle texture changes on the metal surface, improving the ability to distinguish features such as indentation depth and edge burrs. Preferably, this application does not limit the specific structure and position of the light source and 260, referring to... Figure 2 and Figure 3The light source box 260 is housed outside the camera lens and has a square structure. Furthermore, a discharge port 330 is provided on one side of the dispensing assembly 300. The discharge port 330 is inclined, allowing the completed coil to be transported out along it. The inclined discharge port 330 utilizes gravity as the primary driving force, allowing qualified or classified unqualified products to automatically slide down to the downstream collection container or conveyor belt without additional power, achieving "zero-energy" material conveying and reducing system power consumption and mechanical complexity. Of course, this application does not limit the degree of inclination of the discharge port 330. Preferably, the inclination angle of the discharge port 330 is typically controlled between 15° and 30°, balancing smoothness and safety. The discharge port 330 works in conjunction with the blower 320 at the distribution port: when a coil is determined to be qualified, the blower does not move, and the coil slides out naturally after moving with the turntable to the position of the discharge port 330; if it is a defective product, the blower blows it into another channel or waste box at a designated position. This "main path sliding out + bypass blowing away" diversion mechanism is compact in structure and reliable in operation, avoiding the structural complexity and failure points brought about by mechanical grippers or push rods.

[0027] Furthermore, the inspection machine of this application also includes a display screen 700, which is suspended at the top center of the support frame 100. The display screen 700 can monitor the real-time inspection images of each optical camera 200. This human-machine interaction design greatly enhances the equipment's visual monitoring capabilities and ease of operation. As an information window between the operator and the inspection system, the display screen 700 can simultaneously display key information such as the original images, processing results, defect markings, and statistical reports from the five cameras, allowing the operator to intuitively grasp the current inspection status without having to approach the equipment or log into the control system. The design of suspending it at the top center has significant advantages: First, it provides a wide field of vision, unobstructed by operations or material flow in front of the equipment, suitable for multiple people to observe simultaneously; second, it saves floor space, avoids the risk of cable dragging, and improves workshop cleanliness; third, it is ergonomic, allowing operators to view the equipment at eye level while standing, reducing fatigue caused by looking down or up. Through the display screen 700, operators can verify the correctness of the inspection logic in real time, such as confirming whether the camera accurately captures the pin flat position or bottom solder joint, and promptly detect and intervene in problems such as lens contamination, abnormal light source, or positioning misalignment. Furthermore, a storage cabinet 120 is located below the support frame 100, and the storage cabinet 120 can be opened on three sides. The storage cabinet 120 provides a closed storage space for the testing machine, which can be used to store commonly used tools (such as lens cleaning cloths and wrenches), spare parts (such as fiber optic connectors and LED beads), technical documents, calibration boards, or personal items, avoiding loss or safety hazards caused by scattered items and keeping the work area clean and orderly. The design of opening on three sides is the core innovation of this technology: the front door facilitates daily access to items; the side doors show great advantages when the equipment is installed against a wall or adjacent to other equipment—even if space is limited at the back or side of the equipment, maintenance personnel can still open the cabinet door from the left or right side to operate without moving the entire equipment, greatly improving the flexibility and efficiency of on-site maintenance. Especially when it is necessary to connect cables inside the cabinet, check the power module, or replace storage devices, the side opening provides a more direct operating path.

[0028] Furthermore, each of the multiple optical cameras 200 is provided with an optical camera mounting base 270 below it. An optical camera adjustment bracket 271 is fixed to the optical camera mounting base 270 and can move back and forth and up and down along the optical camera mounting base 270. The optical camera mounting base 270, as a basic mounting platform, is made of high-strength metal material to ensure it does not deform under long-term load, providing a stable base for the camera. The optical camera adjustment bracket 271 mounted on it has multi-degree-of-freedom adjustment capabilities, allowing operators to adjust it in X (back and forth), Z (up and down), Y (left and right), and angle. Furthermore, this application does not limit the specific material of the circular support plate 111. Preferably, the circular support plate 111 is made of optical tempered glass. Optical tempered glass combines the high light transmittance of ordinary optical glass with the high strength characteristics of tempered glass, capable of withstanding large mechanical loads and thermal stress, and is not easily broken or deformed. This ensures that it maintains flatness under frequent lifting and lowering and long-term use, providing a reliable guarantee for the stable support of the upper coil and the clear imaging of the lower camera.

[0029] It should be noted that in the description of this utility model, any descriptions of orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0030] In the description of this utility model, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is mentioned, it is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A six-group optical camera inspection machine, characterized in that, include: A support frame (100) is provided above the support frame (100), a support platform (110) is provided above the support platform (110), a circular support plate (111) is provided above the support platform (110), and a lifting device (112) is provided between the circular support plate (111) and the support platform (110); Multiple optical cameras (200) are provided, including a first optical camera (210), a second optical camera (220), and a third optical camera (230) arranged along the circumference of the circular support plate (111). The first optical camera (210) is used to detect surface damage of the coil, the second optical camera (220) is used to detect defects on the front side of the coil, and the third optical camera (230) is used to capture defects on the bottom side of the coil. The dispensing port assembly (300) is arranged around the circumference of the circular support plate (111) and is located opposite the second optical camera (220). The dispensing port assembly (300) includes a dispensing port adjustment block (310) and a dispensing port blower holder (320). The feeding assembly (400) includes a vibrating plate (410), a feeding track (420), a linear vibration adjustment plate (430), and a discharge adjustment block (440) connected in sequence. The discharge adjustment block (440) is used to adjust the position of the coil.

2. The testing machine according to claim 1, characterized in that, It also includes a through-beam fiber assembly (500) located between the feeding assembly (400) and the first optical camera (210), the through-beam fiber assembly (500) being used for the position of the induction coil.

3. The testing machine according to claim 2, characterized in that, The plurality of optical cameras (200) also includes a fourth optical camera (240) and a fifth optical camera (250) arranged along the circumference of the circular support plate (111). The fourth optical camera (240) is used to detect the stamping flatness of the coil pins and surface oxidation, and the fifth optical camera (250) is used to detect the spacing of the coil pins and correct distortion through a calibration algorithm.

4. The testing machine according to claim 3, characterized in that, It also includes a data cable box assembly (600), with each of the first optical camera (210), the second optical camera (220), the third optical camera (230), the fourth optical camera (240), and the fifth optical camera (250) having an independent data cable box assembly (600). The data cable box assembly (600) is used to connect each optical camera (200) to the central control system and transmit detection data.

5. The testing machine according to claim 4, characterized in that, The first optical camera (210), the second optical camera (220) and the fourth optical camera (240) are each provided with a light source box (260), which is used to provide uniform illumination to the coil and reduce shadows and reflections.

6. The testing machine according to claim 1, characterized in that, The feed port assembly (300) has a discharge port (330) on one side. The discharge port (330) is inclined, and the coil that has completed the test can be transported out along the discharge port (330).

7. The testing machine according to claim 1, characterized in that, It also includes a display screen (700), which is suspended at the top center of the support frame (100) and can monitor the real-time detection images of each optical camera (200).

8. The testing machine according to claim 1, characterized in that, Below the support frame (100) is a storage cabinet (120), which can be opened on three sides.

9. The testing machine according to claim 1, characterized in that, Each of the multiple optical cameras (200) is provided with an optical camera mounting base (270) below it. An optical camera adjustment bracket (271) is fixed on the optical camera mounting base (270). The optical camera adjustment bracket (271) can move back and forth and up and down along the optical camera mounting base (270).

10. The testing machine according to claim 1, characterized in that, The circular support plate (111) is made of optically tempered glass.

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