Magnetic ring testing apparatus

Abstract

This utility model relates to a magnetic ring testing device in the field of magnetic ring testing. It includes a frame and a worktable mounted on the frame. A testing instrument for magnetic ring testing is mounted on the worktable via a support frame. The worktable is sequentially equipped with a loading station, a testing station, and a unloading station. A conveyor line for conveying magnetic rings to the loading assembly is provided on the worktable. A vision inspection camera for photographing and inspecting the magnetic rings is connected to the worktable via a support plate. A discharge cylinder is connected to the support plate, with its telescopic end extending towards the conveyor line and connected to a pusher for pushing the magnetic rings. The vision inspection camera of this utility model photographs and inspects the magnetic rings, enabling pre-inspection of missing pins, abnormal appearance, etc., before the magnetic rings enter the testing station, thus promptly eliminating unqualified magnetic rings. The discharge comb teeth on the tray enable spaced discharge of the magnetic rings, further ensuring the orderly arrangement of the magnetic rings on the conveyor line and improving the stability and reliability of the conveying process.

Description

Technical Field

[0001] This utility model relates to the field of magnetic ring testing, and specifically to magnetic ring testing equipment. Background Technology

[0002] Magnetic ring inductors, as a key electronic component, are widely used in power electronics, communication equipment, automotive electronics, new energy, and industrial control. Their core function is to achieve efficient conversion of electrical energy to magnetic energy through the coupling of a magnetic ring (made of magnetic materials such as ferrite and amorphous alloys) and a coil, thereby performing tasks such as filtering, energy storage, and electromagnetic interference (EMI) suppression. Therefore, the manufacturing process control and performance testing of magnetic ring inductors are crucial to ensuring their reliability.

[0003] Magnetic ring testing equipment is a specialized instrument used to evaluate the performance parameters of magnetic ring inductors. Its core functions include measuring key indicators such as inductance (L), quality factor (Q), DC resistance (DCR), permeability, number of turns, and current. It is widely used in magnetic material research and development, inductor production quality inspection, and incoming inspection of end products.

[0004] However, although existing testing equipment can complete basic parameter measurements, it still has the following limitations: traditional equipment mostly adopts a step-by-step testing mode, which requires switching test items or changing fixtures, resulting in a complete test cycle of several minutes for a single magnetic ring, making it difficult to meet the online inspection needs of large-scale production lines. Existing equipment usually only performs single tests on magnetic rings, requiring multiple devices to work together, resulting in low magnetic ring testing efficiency. Furthermore, existing magnetic ring testing equipment lacks pre-inspection of magnetic rings, causing magnetic rings with missing pins or abnormal appearances to be sent to the testing station, affecting testing efficiency. There is an urgent need for a magnetic ring testing device with stable and reliable testing results and integrated collaborative testing. Utility Model Content

[0005] The purpose of this invention is to address the above-mentioned deficiencies and provide a magnetic ring testing device to solve the technical problems in the background art of how to improve the integrated and collaborative testing of magnetic rings, ensure the smoothness of magnetic ring transportation, and improve testing efficiency, as well as the stability and reliability of magnetic ring transportation testing.

[0006] The objective of this utility model is achieved through the following means:

[0007] A magnetic ring testing device includes a frame and a worktable mounted on the frame. A controller is installed on the worktable, and a testing instrument for magnetic ring testing is mounted on the worktable via a support frame. The worktable has a loading station, a testing station, and a unloading station arranged sequentially. Each of the loading, testing, and unloading stations has a loading assembly, a testing assembly, and a unloading assembly, respectively. A robotic arm on the worktable can grip magnetic rings and pass them sequentially through the loading assembly, testing assembly, and unloading assembly. The worktable also includes an unloading clamping assembly for unloading magnetic rings from the unloading station. A movable component connects to the worktable. The receiving platform is equipped with a conveyor line for feeding magnetic rings to the feeding assembly. The conveyor line is driven by a conveyor drive unit to feed magnetic rings to the feeding assembly in sequence. The worktable is connected to a vision inspection camera for photographing and inspecting the magnetic rings via a support plate. The detection end of the vision inspection camera extends towards the conveyor line. A discharge cylinder is connected to the support plate. The extension end of the discharge cylinder extends towards the conveyor line and is connected to a pusher frame for pushing the material. One end of the conveyor line extends outward to form a discharge end. The discharge end is connected to a tray for temporarily storing magnetic rings. The tray is connected to discharge comb teeth for intermittent discharge.

[0008] Furthermore, as described above, the feeding assembly includes a material-blocking cylinder and a material-blocking block. The end of the conveyor line extends to the feeding station to form a feeding end, so that the material-blocking cylinder is installed at the bottom of the workbench, and the clamping end of the material-blocking cylinder extends to the upper surface of the workbench and connects with the material-blocking block. The end of the material-blocking block extends to the conveyor line, and the material-blocking cylinder drives the material-blocking block to block the magnetic beads, so that the magnetic rings can enter the feeding end one by one in sequence.

[0009] By using a material-blocking cylinder to drive a material-blocking block to precisely block the magnetic rings at the end of the conveyor line, the magnetic rings are ensured to enter the feeding end one by one, preventing conveying chaos caused by multiple magnetic rings rushing in at the same time. This ensures a continuous and orderly feeding process, improves conveying smoothness, and provides a stable input basis for subsequent testing procedures.

[0010] Furthermore, as described above, the test assembly includes a clamping test cylinder, a clamping plate, and multiple test chucks. The clamping test cylinder is installed at the bottom of the workbench, and the clamping end of the clamping test cylinder is connected to the clamping plate. The multiple test chucks are symmetrically installed on both sides of the clamping test cylinder. A positioning plate for using the test chucks to clamp the magnetic ring pins is connected to the workbench via a mounting block.

[0011] The clamping test cylinder drives symmetrical test chucks on both sides to clamp the magnetic ring pins in conjunction with the positioning plate, realizing pin positioning and testing functions. This avoids the problem of extended cycle caused by step-by-step testing in traditional equipment. By integrating multiple test items in a single station, the complete test cycle of a single magnetic ring is shortened to a reasonable range, meeting the online inspection needs of large-scale production lines.

[0012] Furthermore, as described above, there are two test stations, and each test station is equipped with a set of test components. The test clamps of each set of test components are electrically connected to a tester.

[0013] Two independent testing stations are each equipped with a set of testing components and connected to the testing instrument to form a parallel testing architecture. Compared with the limitations of the existing single testing station, it realizes multiple testing capabilities of multiple magnetic rings. Combined with the precise transfer of the PPU cam robot, it significantly improves the overall testing efficiency of the equipment and solves the problem of low efficiency caused by the collaborative operation of multiple devices.

[0014] Furthermore, as described above, the feeding assembly includes a receiving cylinder and a receiving block. The telescopic end of the receiving cylinder is connected to the receiving block via a sliding member. A conductive discharge port is provided on the worktable, and a waste hopper is provided at the bottom of the worktable to receive the magnetic ring that is tested for abnormality.

[0015] The receiving cylinder drives the receiving block through a sliding component to achieve precise material receiving. Combined with the waste hopper at the bottom of the worktable, this forms a rapid sorting channel for abnormal magnetic rings. When the testing component detects an abnormal magnetic ring test value, it can be directly guided into the waste hopper through the discharge port, preventing abnormal parts from entering subsequent processes, ensuring the stability of the testing process, and resolving the problem of invalid testing caused by missing pre-detection.

[0016] Further as described above, the unloading clamping assembly includes a moving module, a sliding seat, a lifting cylinder, and an unloading clamping cylinder. The moving module is horizontally mounted on the workbench via a stand. One end of the moving module extends to the unloading assembly. The sliding seat is connected to the moving module and can move along the moving module to the unloading assembly. The lifting cylinder is mounted on the sliding seat, and the telescopic end of the lifting cylinder is connected to the unloading clamping cylinder via a lifting plate. The clamping end of the unloading clamping cylinder extends toward the upper surface of the workbench.

[0017] The moving module drives the sliding seat to move horizontally, and works with the lifting cylinder and the unloading clamping cylinder to achieve precise clamping. The moving module, supported by the upright frame, extends to the unloading component, ensuring the smooth transfer of the magnetic ring from the testing station to the receiving platform after testing. Together with the adjustable clamping plate of the receiving platform, a complete unloading loop is formed, improving the reliability of equipment operation.

[0018] Furthermore, as described above, the moving component is mounted on the workbench and connected to the receiving platform via a moving base. An adjustable card plate is connected to the receiving platform.

[0019] The moving component connects to the receiving platform via a moving base, and works with an adjustable tray to accommodate magnetic rings of different specifications. The adjustable tray adapts to different magnetic ring trays, ensuring stable receiving.

[0020] Furthermore, as described above, the robotic arm is composed of a PPU cam robotic arm. The moving end of the PPU cam robotic arm extends toward the worktable and is connected to a mounting plate. The mounting plate is equipped with a transfer clamping cylinder for adapting to the spacing between the loading station, the testing station, and the unloading station. The clamping end of the transfer clamping cylinder extends toward the worktable.

[0021] The PPU cam-type robotic arm's mobile end connects to the mounting plate, and the transfer clamping cylinder adapts to the spacing between the three workstations: loading, testing, and unloading. This design utilizes the high precision of the PPU cam-type robotic arm to achieve rapid and accurate transfer of the magnetic ring between the three workstations, reducing the robotic arm's idle time, improving overall work efficiency, and solving the efficiency loss problem caused by workstation switching in traditional equipment.

[0022] Further as described above, the conveyor line consists of a conveyor belt, a connecting plate, a drive roller, and a driven roller. The connecting plate is mounted on the workbench, and the drive roller and driven roller are respectively mounted on both ends of the connecting plate. One end of the conveyor belt passes through the drive roller and driven roller in sequence and is connected to the other end in a closed loop. The conveyor drive component includes a drive motor, a drive wheel, a driven wheel, and a transmission belt. The drive motor is mounted on the workbench, and the output shaft of the drive motor is connected to the drive wheel. The driven wheel is connected to one end of the drive roller, and the transmission belt is connected to the drive wheel and the driven wheel.

[0023] The conveyor belt is driven in a closed loop by the active and driven rollers, complemented by baffles extending along the conveying direction and a discharge opening design. A discharge cylinder drives a pusher to guide the magnetic rings from the conveyor belt into the discharge opening, where they are collected in a hopper, forming a pre-inspection diversion channel. This design diverts magnetic rings with abnormal appearance during the conveying stage, preventing defective parts from entering the next station, improving testing efficiency, and resolving the problem of invalid testing caused by missing pre-inspections.

[0024] Furthermore, as described above, the connecting plate is connected to a baffle extending along the conveying direction of the conveyor belt, and a discharge opening is provided in the middle of the baffle. The discharge cylinder can drive the pusher to discharge the magnetic ring from the conveyor belt to the discharge opening. A hopper for collecting the magnetic ring is provided on the worktable.

[0025] A visual inspection camera extends above the conveyor line via a support plate to enable real-time inspection of the magnetic ring's appearance. When a missing pin or abnormal appearance is detected, the discharge cylinder can quickly discharge the ring via a pusher, forming a complete closed loop of pre-inspection-discharge-testing. This solves the problem of traditional equipment lacking pre-inspection, which affects the efficiency of the next process, and improves the stability and reliability of the equipment's testing.

[0026] Furthermore, as described above, the discharge comb teeth are provided with multiple spaced-apart slots, each slot having a through hole, and the slots extend toward the conveyor belt. A guide groove is provided on the outer side of the material tray, and the side of the discharge comb teeth is paired with the guide groove via a guide block. One end of the guide groove extends toward the conveyor belt, and the discharge comb teeth can move toward the conveyor belt along the guide groove via the guide block.

[0027] The magnetic rings are manually arranged sequentially and at intervals on the discharge comb teeth to ensure the spacing between them, thereby improving the stable conveying of the magnetic rings along the conveyor belt. At the same time, a visual inspection camera is used to take pictures of the intervals of the magnetic rings to ensure the stability and reliability of the pre-testing of the magnetic rings.

[0028] The beneficial effects of this utility model are as follows: By sequentially setting up loading, testing, and unloading stations, and coordinating with a robotic arm to hold the magnetic rings and pass them through each station, integrated collaborative operation of magnetic ring testing is achieved. This avoids the problem of extended testing cycles caused by switching test items or changing fixtures in traditional step-by-step testing modes, effectively shortening the complete testing time for a single magnetic ring and meeting the online inspection needs of large-scale production lines. The conveyor line sequentially transports magnetic rings to the loading assembly via a conveyor drive. Combined with a vision inspection camera connected to the support plate, the magnetic rings are photographed and inspected. Pre-inspection of missing pins, abnormal appearance, etc., can be completed before the magnetic rings enter the testing station, and unqualified magnetic rings can be promptly removed from the next station. The discharge cylinder and pusher, in conjunction with the conveyor line, ensure that magnetic rings with abnormalities detected by the vision camera can be removed from the conveyor line, preventing abnormal magnetic rings from continuing to be transmitted to the next process, thus improving the stability and reliability of the testing process. The discharge comb teeth set on the tray can realize the interval discharge of magnetic rings, further ensuring that the magnetic rings are arranged in an orderly manner on the conveyor line, improving the stability and reliability of the conveying process, and enhancing the continuity of the overall testing process. Attached Figure Description

[0029] Figure 1 This is a perspective view of the first direction in this embodiment;

[0030] Figure 2 This is a perspective view of the second direction in this embodiment;

[0031] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0032] Figure 4 This is the front view of this embodiment;

[0033] Figure 5 This is a partial structural diagram of this embodiment;

[0034] Figure 6 for Figure 5 A magnified view of part B in the diagram;

[0035] Figure 7 This is a schematic diagram of the bottom connection structure of the workbench in this embodiment;

[0036] Figure 8 This is a schematic diagram of the connection structure of the conveyor drive component in this embodiment;

[0037] Figure 9 for Figure 8 A magnified view of part of C;

[0038] The reference numerals in the figure are as follows:

[0039] 1-Frame, 2-Workbench, 3-Controller, 4-Tester, 5-Robot, 6-Receiving Platform, 7-Vision Inspection Camera, 8-Discharge Cylinder, 9-Pusher Frame, 10-Conveyor Line, 11-Plate, 12-Discharge Comb, 13-Blocking Cylinder, 14-Blocking Block, 15-Clamping Test Cylinder, 16-Clamping Plate, 17-Test Clamp, 18-Mounting Block, 19-Positioning Plate, 20-Receiving Cylinder, 21-Receiving Block, 22-Sliding Part, 23-Discharge Port, 24-Moving Module, 25-Sliding Seat, 26-Lifting Cylinder, 27-Discharge Clamping Cylinder, 28-Clamping Plate, 29-Conveying Drive Component, 30-Stop Bar, 31-Discharge Opening, 32-Collection Hopper, 33-Clamping Position, 34-Guide Groove, 35-Mounting Plate, 36-Transfer Clamping Cylinder. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0041] To make the technical problem to be solved, the technical solution and the beneficial effects of this utility model clearer, the following describes the solution in further detail with reference to the accompanying drawings and embodiments.

[0042] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this scheme and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] In this embodiment, refer to Figures 1-9The specific implementation of the magnetic ring testing equipment includes a frame 1 and a worktable 2 mounted on the frame 1. A controller 3 is mounted on the worktable 2, and a testing instrument 4 for magnetic ring testing is mounted on the worktable 2 via a support frame. The worktable 2 is sequentially equipped with a loading station, a testing station, and a unloading station, each equipped with a loading component, a testing component, and an unloading component. A robotic arm 5 on the worktable 2 can grip magnetic rings and pass them sequentially through the loading component, the testing component, and the unloading component. The worktable 2 also has an unloading clamping component for gripping magnetic rings at the unloading station. A receiving platform is connected to the worktable 2 via a moving component. 6. The workbench 2 is equipped with a conveyor line 10 for conveying magnetic rings to the feeding assembly. The conveyor line 10 can sequentially convey magnetic rings to the feeding assembly by being driven by the conveyor drive 29. The workbench 2 is connected to a vision inspection camera 7 for taking pictures and detecting the magnetic rings via a support plate. The detection end of the vision inspection camera 7 extends to the conveyor line 10. A discharge cylinder 8 is connected to the support plate. The extension end of the discharge cylinder 8 extends to the conveyor line 10 and is connected to a pusher frame 9 for pushing materials. One end of the conveyor line 10 extends outward to form a discharge end. The discharge end is connected to a tray 11 for temporarily storing magnetic rings. The tray 11 is connected to discharge comb teeth 12 for intermittent discharge.

[0044] Specifically, the discharge comb 12 set on the material tray 11 can realize the interval discharge of magnetic rings, further ensuring that the magnetic rings are arranged in an orderly manner on the conveyor line 10, improving the stability and reliability of the conveying process, and improving the continuity of the overall testing process.

[0045] The feeding assembly includes a material-blocking cylinder 13 and a material-blocking block 14. The end of the conveyor line 10 extends to the feeding station to form a feeding end, so that the material-blocking cylinder 13 is installed at the bottom of the workbench 2, and the clamping end of the material-blocking cylinder 13 extends to the upper surface of the workbench 2 and is connected to the material-blocking block 14. The end of the material-blocking block 14 extends to the conveyor line 10. The material-blocking cylinder 13 drives the material-blocking block 14 to block the magnetic beads, so that the magnetic rings can enter the feeding end one by one.

[0046] The material blocking cylinder 13 drives the material blocking block 14 to implement precise blocking control on the magnetic ring at the end of the conveyor line 10, ensuring that the magnetic ring enters the feeding end one by one, preventing the conveying chaos caused by multiple magnetic rings rushing in at the same time, ensuring the continuous and orderly feeding process, improving the smoothness of conveying, and providing a stable input basis for subsequent testing processes.

[0047] The test assembly includes a clamping test cylinder 15, a clamping plate 16, and multiple test chucks 17. The clamping test cylinder 15 is installed at the bottom of the workbench 2, and the clamping end of the clamping test cylinder 15 is connected to the clamping plate 16. Multiple test chucks 17 are symmetrically installed on both sides of the clamping test cylinder 15. A positioning plate 19 for cooperating with the test chucks 17 to clamp the magnetic ring pins is connected to the workbench 2 via a mounting block 18.

[0048] The clamping test cylinder 15 drives the symmetrical test chucks 17 on both sides to clamp the magnetic ring pins in conjunction with the positioning plate 19, realizing pin positioning and testing functions. This avoids the problem of extended cycle caused by step-by-step testing in traditional equipment. By integrating multiple test items in a single station, the complete test cycle of a single magnetic ring is shortened to a reasonable range, meeting the online testing needs of large-scale production lines.

[0049] There are two test stations, and each test station is equipped with a set of test components. The test clamp 17 of each set of test components is electrically connected to a tester 4.

[0050] Two independent testing stations are each equipped with a set of testing components and connected to the tester 4 to form a parallel testing architecture. Compared with the limitations of the existing single testing station, it realizes multiple testing capabilities of multiple magnetic rings. With the precise transfer of the PPU cam robot 5, it significantly improves the overall testing efficiency of the equipment and solves the problem of low efficiency caused by the collaborative operation of multiple devices.

[0051] The feeding assembly includes a receiving cylinder 20 and a receiving block 21. The telescopic end of the receiving cylinder 20 is connected to the receiving block 21 through a sliding member 22. A conductive discharge port 23 is provided on the workbench 2. The bottom of the workbench 2 is used to receive the magnetic ring that is tested for abnormality through a waste hopper.

[0052] The receiving cylinder 20 drives the receiving block 21 through the sliding component 22 to achieve precise material receiving. Together with the waste hopper at the bottom of the workbench 2, it forms a rapid sorting channel for abnormal magnetic rings. When the testing component detects an abnormal magnetic ring test value, it can be directly guided into the waste hopper through the discharge port 23, preventing abnormal parts from entering subsequent processes, ensuring the stability of the testing process, and solving the problem of invalid testing caused by missing pre-detection.

[0053] Specifically, the conveyor line 10 sequentially conveys magnetic rings to the upper material assembly via the conveyor drive 29. Combined with the vision inspection camera 7 connected to the support plate, the magnetic rings are photographed and inspected. This allows for pre-inspection of the magnetic rings before they enter the testing station, such as checking for missing pins or abnormal appearance. Unqualified magnetic rings are promptly removed from the next station. The discharge cylinder 8, in conjunction with the pusher 9, works with the conveyor line 10 to convey the drive 29, ensuring that magnetic rings with abnormalities detected by the vision camera are removed from the conveyor line 10. This prevents abnormal magnetic rings from continuing to be transmitted to the next process, thus improving the stability and reliability of the testing process.

[0054] The unloading clamping assembly includes a moving module 24, a sliding seat 25, a lifting cylinder 26, and an unloading clamping cylinder 27. The moving module 24 is horizontally mounted on the worktable 2 via a stand. One end of the moving module 24 extends to the unloading assembly. The sliding seat 25 is connected to the moving module 24 and can move along the moving module 24 to the unloading assembly. The lifting cylinder 26 is mounted on the sliding seat 25, and the telescopic end of the lifting cylinder 26 is connected to the unloading clamping cylinder 27 via a lifting plate. The clamping end of the unloading clamping cylinder 27 extends toward the upper surface of the worktable 2.

[0055] The moving module 24 drives the sliding seat 25 to move horizontally, and works with the lifting cylinder 26 and the unloading clamping cylinder 27 to achieve precise clamping. The moving module 24, supported by the upright frame, extends to the unloading component, ensuring the smooth transfer of the magnetic ring from the testing station to the receiving platform 6 after testing. Together with the adjustable clamping plate 28 and the receiving platform 6, a complete unloading closed loop is formed, improving the reliability of equipment operation.

[0056] The moving component is mounted on the workbench 2 and connected to the receiving platform 6 via a moving base. An adjustable clamping plate 28 is connected to the receiving platform 6. The moving component, connected to the receiving platform 6 via the moving base, works with the adjustable clamping plate 28 to accommodate magnetic rings of different specifications. Adjustment of the clamping plate 28 adapts to different magnetic ring trays, ensuring stable material handling.

[0057] The robotic arm 5 is composed of a PPU cam robotic arm 5. The moving end of the PPU cam robotic arm 5 extends toward the worktable 2 and is connected to a mounting plate 35. The mounting plate 35 is provided with a transfer clamping cylinder 36 for adapting to the spacing between the loading station, the testing station and the unloading station. The clamping end of the transfer clamping cylinder 36 extends toward the worktable 2.

[0058] The PPU cam-type robotic arm 5 is connected to the mounting plate 35 at its moving end, and is adapted to the spacing between the three workstations of loading, testing, and unloading via the transfer clamping cylinder 36. This design utilizes the high precision characteristics of the PPU cam-type robotic arm 5 to achieve rapid and accurate transfer of the magnetic ring between the three workstations, reducing the idle time of the robotic arm 5, improving overall work efficiency, and solving the efficiency loss problem caused by workstation switching in traditional equipment.

[0059] The conveyor line 10 consists of a conveyor belt, a connecting plate, a drive roller, and a driven roller. The connecting plate is mounted on the workbench 2. The drive roller and the driven roller are respectively mounted on both ends of the connecting plate. One end of the conveyor belt passes through the drive roller and the driven roller in sequence and is connected to the other end in a closed loop. The conveyor drive component 29 includes a drive motor, a drive wheel, a driven wheel, and a transmission belt. The drive motor is mounted on the workbench 2, and the output shaft of the drive motor is connected to the drive wheel. The driven wheel is connected to one end of the drive roller, and the transmission belt is connected to the drive wheel and the driven wheel.

[0060] The conveyor belt is driven in a closed loop by the driving and driven rollers, and is designed with baffles 30 extending along the conveying direction and a discharge opening 31. A discharge cylinder 8 drives a pusher 9 to guide the magnetic rings from the conveyor belt into the discharge opening 31, where they are collected by a hopper 32, forming a pre-inspection diversion channel. This design diverts magnetic rings with abnormal appearance during the conveying stage, preventing defective parts from entering the next station, improving testing efficiency, and solving the problem of invalid testing caused by missing pre-inspections.

[0061] The connecting plate is connected to a baffle 30 extending along the conveying direction of the conveyor belt. A discharge opening 31 is provided in the middle of the baffle 30. The discharge cylinder 8 can drive the pusher 9 to discharge the magnetic ring from the conveyor belt to the discharge opening 31. A collection hopper 32 for collecting the magnetic ring is provided on the workbench 2.

[0062] The visual inspection camera 7 extends above the conveyor line 10 via a support plate to achieve real-time inspection of the magnetic ring's appearance. When a missing pin or abnormal appearance is detected, the discharge cylinder 8 can quickly discharge the material via the pusher frame 9, forming a complete closed loop of pre-inspection-discharge-testing. This solves the problem of traditional equipment lacking pre-inspection, which affects the efficiency of the next process and improves the stability and reliability of the equipment's testing.

[0063] The discharge comb 12 has multiple spaced locking positions 33, each with a through hole and extending toward the conveyor belt. The outer side of the material tray 11 is provided with a guide groove 34. The side of the discharge comb 12 is paired with the guide groove 34 via a guide block. One end of the guide groove 34 extends toward the conveyor belt, and the discharge comb 12 can move toward the conveyor belt along the guide groove 34 via the guide block.

[0064] The magnetic rings are manually arranged sequentially and at intervals on the discharge comb 12 to further ensure the spacing between the magnetic rings, thereby improving the stable conveying of the magnetic rings along the conveyor belt. At the same time, the visual inspection camera 7 takes pictures of the magnetic rings at intervals to ensure the stability and reliability of the pre-test of the magnetic rings.

[0065] The specific usage process in this embodiment is as follows:

[0066] The magnetic rings are manually placed sequentially on the slots 33 of the discharge comb 12, so that multiple magnetic rings can be distributed at equal intervals. When the discharge comb 12 is full of magnetic rings, the discharge comb 12 is pushed to move towards the conveyor belt, so that the magnetic rings on the discharge comb 12 fall above the conveyor belt and are conveyed to the feeding assembly via the conveyor belt.

[0067] Visual inspection: As the conveyor line 10 rotates, it drives the magnetic ring to enter the area below the visual inspection camera 7. The visual inspection camera 7 takes pictures of the magnetic ring for inspection. If there are defects in the appearance or pins of the magnetic ring, the discharge cylinder 8 drives the pusher 9 to remove the abnormal magnetic ring from the conveyor belt, thus completing the preliminary inspection of the magnetic ring.

[0068] The magnetic ring is fed along the conveyor belt, passes through the baffle block 14 and enters the feeding end. A baffle is installed on the feeding end, so that the baffle cylinder 13 drives the baffle block 14 to complete the feeding of one magnetic ring.

[0069] The transfer process utilizes a PPU cam robot 5 to drive three transfer clamping cylinders 36 to move synchronously, enabling the three transfer clamping cylinders 36 to complete the loading, testing, and unloading of magnetic rings. This achieves integrated collaborative operation for magnetic ring testing, effectively shortening the complete testing time for a single magnetic ring and meeting the online testing needs of large-scale production lines.

[0070] The material unloading and tray placement process utilizes the material unloading clamping cylinder 27 to clamp the magnetic rings on the material unloading assembly, and works in conjunction with the tray on the receiving platform 6 to complete the tray loading of the magnetic rings, thereby improving the efficiency of automated production.

[0071] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A magnetic ring testing device, comprising a frame and a worktable mounted on the frame, a controller being mounted on the worktable, and a testing instrument for magnetic ring testing being mounted on the worktable via a support frame, characterized in that: The workbench is sequentially equipped with a loading station, a testing station, and a unloading station. Each loading station, testing station, and unloading station is equipped with a loading component, a testing component, and an unloading component, respectively. A robotic arm on the workbench can grip magnetic rings and pass them sequentially through these components. The workbench also has an unloading clamping component for unloading magnetic rings from the unloading station. A receiving platform is connected to the workbench via a moving component. A conveyor line on the workbench transports magnetic rings to the loading component. Driven by a conveyor drive, the conveyor line sequentially transports magnetic rings to the loading component. A vision inspection camera for photographing and detecting the magnetic rings is connected to the workbench via a support plate. The detection end of the vision inspection camera extends towards the conveyor line. A discharge cylinder is connected to the support plate, and its extension end extends towards the conveyor line and is connected to a pusher frame for pushing materials. One end of the conveyor line extends outward to form a discharge end, which is connected to a tray for temporarily storing magnetic rings. The tray has discharge combs for intermittent discharge.

2. The magnetic ring testing device according to claim 1, characterized in that: The feeding assembly includes a material-blocking cylinder and a material-blocking block. The end of the conveyor line extends to the feeding station to form a feeding end. The material-blocking cylinder is installed at the bottom of the workbench, and the clamping end of the material-blocking cylinder extends to the upper surface of the workbench and connects with the material-blocking block. The end of the material-blocking block extends to the conveyor line. The material-blocking cylinder drives the material-blocking block to block the magnetic beads, so that the magnetic rings can enter the feeding end one by one.

3. The magnetic ring testing device according to claim 1, characterized in that: The test assembly includes a clamping test cylinder, a clamping plate, and multiple test chucks. The clamping test cylinder is installed at the bottom of the workbench, and the clamping end of the clamping test cylinder is connected to the clamping plate. Multiple test chucks are symmetrically installed on both sides of the clamping test cylinder. A positioning plate for using the test chucks to clamp the magnetic ring pins is connected to the workbench via a mounting block.

4. The magnetic ring testing device according to claim 3, characterized in that: The test station is provided with two stations, and each station is equipped with a set of test components. The test clamp of each set of test components is electrically connected to a tester.

5. The magnetic ring testing device according to claim 1, characterized in that: The feeding assembly includes a receiving cylinder and a receiving block. The telescopic end of the receiving cylinder is connected to the receiving block through a sliding member. A discharge port is provided on the worktable, and a waste hopper is provided at the bottom of the worktable to receive the magnetic ring that is tested for abnormality.

6. The magnetic ring testing device according to claim 1, characterized in that: The unloading clamping assembly includes a moving module, a sliding seat, a lifting cylinder, and an unloading clamping cylinder. The moving module is horizontally mounted on the workbench via a stand. One end of the moving module extends to the unloading assembly. The sliding seat is connected to the moving module and can move along the moving module to the unloading assembly. The lifting cylinder is mounted on the sliding seat, and the telescopic end of the lifting cylinder is connected to the unloading clamping cylinder via a lifting plate. The clamping end of the unloading clamping cylinder extends to the upper surface of the workbench.

7. The magnetic ring testing device according to claim 1, characterized in that: The moving component is mounted on the workbench and is connected to the receiving platform via a moving base. An adjustable plate is connected to the receiving platform.

8. The magnetic ring testing device according to any one of claims 1-7, characterized in that: The robotic arm is composed of a PPU cam robotic arm. The moving end of the PPU cam robotic arm extends toward the worktable and is connected to a mounting plate. The mounting plate is equipped with a transfer clamping cylinder for adapting to the spacing between the loading station, the testing station and the unloading station. The clamping end of the transfer clamping cylinder extends toward the worktable.

9. The magnetic ring testing device according to any one of claims 1-7, characterized in that: The conveyor line consists of a conveyor belt, a connecting plate, a drive roller, and a driven roller. The connecting plate is mounted on the workbench, and the drive roller and driven roller are respectively mounted on both ends of the connecting plate. One end of the conveyor belt passes through the drive roller and driven roller in sequence and is connected to the other end in a closed loop. The conveyor drive component includes a drive motor, a drive wheel, a driven wheel, and a transmission belt. The drive motor is mounted on the workbench, and the output shaft of the drive motor is connected to the drive wheel. The driven wheel is connected to one end of the drive roller, and the transmission belt is connected to the drive wheel and the driven wheel.

10. The magnetic ring testing device according to claim 9, characterized in that: The connecting plate is connected to a baffle that extends along the conveying direction of the conveyor belt. A discharge opening is provided in the middle of the baffle. The discharge cylinder can drive the pusher to discharge the magnetic ring from the conveyor belt to the discharge opening. A collection hopper for collecting the magnetic ring is provided on the worktable.

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