A kind of eddy current testing discharging device for magnetic ring detection

Abstract

The utility model discloses a kind of eddy flaw detection discharging devices for magnetic ring detection, it is related to magnetic ring detection technical field, the eddy flaw detection discharging device for this magnetic ring detection includes cabinet, installation plate is set on the cabinet;Transfer mechanism for magnetic ring handling is arranged on the cabinet operating platform;Grabbing assembly for the rotation of magnetic ring grabbing is arranged on the installation plate;Discharging mechanism for the storage of magnetic ring is arranged on the cabinet operating platform;Flaw detection assembly for the flaw detection of the rotation of magnetic ring is arranged on the installation plate;And fixed component for the placement of magnetic ring is arranged on the installation plate, overall device is cooperated by each mechanism, realizes the automatic connection of magnetic ring from handling, positioning, flaw detection to storage, effectively solve the problem that manual positioning is not accurate, process disjointed, improve the efficiency and reliability of magnetic ring eddy flaw detection.

Description

Technical Field

[0001] This application relates to the field of magnetic ring testing technology, and more specifically, to an eddy current testing discharge device for magnetic ring testing. Background Technology

[0002] Magnetic rings, as key basic components in the fields of electronics, power, and communications, are widely used in electromagnetic interference suppression, energy conversion, and signal transmission. Through their inherent magnetic permeability, they achieve magnetic field confinement, electromagnetic coupling, or interference shielding. In equipment such as cable harnesses, transformers, sensors, and motors, they play a crucial role in stabilizing circuit performance and improving energy transmission efficiency. The structural integrity of the magnetic ring directly affects the operational stability and service life of the entire device.

[0003] During the molding, processing, and assembly of magnetic rings, surface and near-surface defects such as microcracks, inclusions, pits, and machining marks are easily generated due to material impurities, fluctuations in process parameters, or mechanical stress. These defects can lead to attenuation of the magnetic properties and decrease in mechanical strength of the magnetic rings, and may even cause localized overheating or breakage during long-term use. Therefore, it is necessary to remove defective products through flaw detection. Eddy current testing, with its adaptability to conductive materials, non-contact detection characteristics, and high sensitivity to surface and near-surface defects, has become one of the mainstream technologies for magnetic ring testing. It captures the eddy current distortion signal caused by defects through the principle of electromagnetic induction, enabling rapid defect identification.

[0004] In the inspection and positioning process, the magnetic ring is often placed manually at the flaw detection station. Due to the variety of magnetic ring specifications, it is difficult to ensure the coaxiality of the magnetic ring and the eddy current probe when aligning them manually. This often results in a large deviation between the probe and the surface of the magnetic ring, leading to uneven distribution of the eddy current magnetic field, reduced accuracy of defect signal identification, and even missed detection. At the same time, the magnetic ring is prone to slight displacement due to hand shaking when placed manually, which further affects the stability of the inspection.

[0005] Therefore, it is necessary for the inventors to design a new eddy current flaw detection discharge device for magnetic ring inspection in order to overcome the above problems. Summary of the Invention

[0006] The main objective of this application is to provide an eddy current testing discharge device for magnetic ring inspection, in order to solve the problem that it is difficult to ensure the coaxiality of the magnetic ring and the eddy current probe during manual alignment in the market, and the distance deviation between the probe and the surface of the magnetic ring is too large.

[0007] To achieve the above objectives, this application provides an eddy current flaw detection discharge device for magnetic ring inspection, comprising a cabinet with a mounting plate on the cabinet; a transfer mechanism for handling magnetic rings mounted on the operating table of the cabinet; a gripping assembly for gripping and rotating magnetic rings mounted on the mounting plate; a discharge assembly for storing magnetic rings mounted on the operating table of the cabinet; a flaw detection assembly for performing flaw detection on rotating magnetic rings mounted on the mounting plate; and a fixing assembly for placing magnetic rings mounted on the mounting plate.

[0008] Preferably, the transfer mechanism includes: a lifting frame; a first cylinder disposed on the lifting frame and reciprocating along its width direction, the first cylinder being distributed along the height direction of the lifting frame; a connecting frame disposed at the output end of the first cylinder; and a magnetic ring gripper disposed on the connecting frame.

[0009] Preferably, the gripping assembly includes: a second cylinder disposed on the mounting plate, the second cylinder facing the flaw detection assembly; a support frame disposed at the output end of the second cylinder and vertically arranged; a rotating part disposed on the support frame facing the flaw detection assembly; and a three-jaw chuck disposed at the end of the rotating part for gripping magnetic rings.

[0010] Preferably, the gripping assembly further includes a sensor assembly, which includes a lever fixed to the operating table, and sensors mounted on the lever. The sensor assembly has two sets of sensors, which are mirror images of each other with the fixed assembly as the axis of symmetry.

[0011] Preferably, the flaw detection assembly includes a support; a linear module disposed on the support and facing the gripping assembly; and a flaw detection module disposed at the transmission end of the linear module, the flaw detection module being coaxially arranged with the gripping assembly.

[0012] Preferably, the fixing assembly includes a support plate vertically disposed on the mounting plate; a third cylinder disposed on the support plate; and a clamping assembly disposed at the output end of the third cylinder.

[0013] Preferably, the discharging assembly for storing magnetic rings is provided on the operating table of cabinet 1. The discharging assembly includes: a base plate provided on the operating table of cabinet; a storage box that reciprocates along the length of the base plate; a slide rail provided on the base plate along the length of the base plate; a bracket provided at the bottom of the storage box and slidably connected to the slide rail; and an electric telescopic rod whose output end is fixedly connected to the bracket for driving the reciprocating motion of the storage box.

[0014] Preferably, a driven wheel is rotatably provided on the support frame, one end of which is fixedly connected to the rotating part. The support frame is also provided with an adjusting wheel and a driving wheel. A motor for driving the driving wheel is provided on the support frame. Belts are fitted on the driving wheel, the driven wheel, and the adjusting wheel.

[0015] Preferably, the storage box is arranged at an angle, and a partition is provided inside the storage box.

[0016] Preferably, the support frame is L-shaped.

[0017] This utility model provides an eddy current testing and unloading device for magnetic rings. Compared with existing technologies, its advantages are as follows: A stable installation foundation is provided by the cabinet and mounting plate, and the coordinated operation of various mechanisms achieves an automated process for eddy current testing and unloading of magnetic rings. The transfer mechanism can automatically transport the magnetic rings without manual handling, reducing positioning deviations caused by manual intervention and improving flow efficiency. The fixing component provides a temporary placement position for the magnetic rings, and together with the gripping component, it achieves precise gripping of the magnetic rings, ensuring positional stability during subsequent testing. The gripping component can grip the magnetic rings and rotate them, and together with the flaw detection component, it can detect the rotating magnetic rings, ensuring that the entire circumference of the magnetic ring can be effectively detected, improving the comprehensiveness and accuracy of the detection. The unloading component can collect the tested magnetic rings, completing the entire process from detection to collection. The overall device, through the cooperation of various mechanisms, achieves automated connection of magnetic ring handling, positioning, flaw detection to collection, effectively solving the problems of inaccurate manual positioning and process disconnection, and improving the efficiency and reliability of eddy current testing of magnetic rings. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the overall component of this utility model; Figure 3 This is a three-dimensional structural schematic diagram of the gripping component and the flaw detection component of this utility model; Figure 4 This is a three-dimensional structural schematic diagram of the gripping component and the flaw detection component of this utility model; Figure 5 This is a three-dimensional structural schematic diagram of the transfer mechanism of this utility model; Figure 6 This is a three-dimensional structural diagram of the discharge component of this utility model.

[0019] The components include: 1. Cabinet; 11. Mounting plate; 2. Lifting frame; 21. First cylinder; 22. Connecting frame; 23. Magnetic ring gripper; 3. Sensor; 31. Second cylinder; 32. Support frame; 33. Rotating part; 34. Three-jaw chuck; 35. Flaw detection assembly; 36. Support plate; 37. Third cylinder; 38. Clamping assembly; 39. Rod frame; 4. Base plate; 41. Storage box; 42. Bracket; 43. Slide rail; 44. Electric telescopic rod. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] It should be noted that the terms "first," "second," etc., used in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0022] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0023] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0024] In addition, the term "multiple" should mean two or more.

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Example 1, as Figures 1-6 As shown, an eddy current testing and discharge device for magnetic ring inspection includes a cabinet 1, on which a mounting plate 11 is provided. The cabinet 1 has an operating platform for supporting various components. A transfer mechanism for handling magnetic rings is provided on the operating platform of the cabinet 1. The transfer mechanism is used to transport magnetic rings to be inspected from a storage position to a fixed component, or to transport inspected magnetic rings from a gripping component to a discharge component. The transfer mechanism includes a lifting frame 2, which is fixed to the operating table; a first cylinder 21 mounted on the lifting frame 2 and reciprocating along its width direction, the first cylinder 21 being distributed along the height direction of the lifting frame 2; a lead screw assembly mounted on the lifting frame 2 for driving the reciprocating motion of the first cylinder 21 in the width direction; and the height distribution adapting to the handling requirements of magnetic rings of different heights; a connecting frame 22 mounted on the output end of the first cylinder 21, the output end of the first cylinder 21 being fixedly connected; and a magnetic ring gripper 23 mounted on the connecting frame 22, the gripper spacing of which is electrically adjustable to accommodate magnetic rings of different outer diameters, and a rubber pad on the inner side of the gripper to prevent damage to the surface of the magnetic ring during gripping.

[0027] A gripping assembly is mounted on the mounting plate 11 for gripping and rotating the magnetic ring. The gripping assembly is used to grip the magnetic ring from the fixed assembly and drive the magnetic ring to rotate in order to cooperate with the flaw detection assembly 35 to complete the full circumference inspection. The gripping assembly includes a second cylinder 31 mounted on a mounting plate 11, which faces the flaw detection assembly 35. The cylinder body of the second cylinder 31 is fixed at the middle position of the mounting plate 11, and its output end extends and retracts horizontally. A support frame 32 is mounted on the output end of the second cylinder 31 and is vertically arranged. The support frame 32 is L-shaped, and its horizontal section is fixedly connected to the output end of the second cylinder 31 to form a stable support structure. A rotating part 33 is rotatably mounted on the support frame 32 facing the flaw detection assembly 35. The rotating part 33 is a cylindrical shaft that is rotatably connected to the end of the vertical section of the support frame 32 through a bearing. Its axis is parallel to the extension and retraction direction of the second cylinder 31. A three-jaw chuck 34 is mounted at the end of the rotating part 33 for gripping magnetic rings. The jaws of the three-jaw chuck 34 can extend and retract radially synchronously to adapt to magnetic rings with different inner diameters. The ends of the jaws are provided with anti-slip textures to ensure the stability of the magnetic ring during rotation.

[0028] A driven wheel is rotatably mounted on the support frame 32. One end of the driven wheel is fixedly connected to the rotating part 33, meaning the driven wheel and the rotating part 33 are coaxially arranged and fixed by a key, rotating synchronously with the rotating part 33. The support frame 32 also has an adjusting wheel and a driving wheel, both of which are rotatably connected to the vertical section of the support frame 32 via shafts, and their axes are parallel to each other. The support frame 32 has a motor that drives the driving wheel to rotate. The motor is fixed to the vertical section of the support frame 32 via a motor mount, and its output shaft is connected to the driving wheel via a coupling. Belts are fitted on the driving wheel, driven wheel, and adjusting wheel. The motor drives the driving wheel to rotate, which in turn drives the driven wheel and the rotating part 33 to rotate via belt transmission. The adjusting wheel can be adjusted to tighten the belt, ensuring stable transmission.

[0029] The gripping assembly also includes a sensor assembly 3, which includes a lever 39 fixed to the operating table, with its bottom fixed to the surface of the operating table and its top extending toward the fixed assembly; a sensor 3, which is a photoelectric sensor 3, is mounted on the lever 39, and its detection direction is toward the area between the fixed assembly and the gripping assembly; the sensor assembly 3 has two sets, and the two sets of sensors 3 are arranged in a mirror image with the fixed assembly as the axis of symmetry, and are used to detect whether the magnetic ring is accurately placed on the fixed assembly, providing a position judgment basis for the coordinated action of each mechanism.

[0030] A discharging assembly for magnetic ring storage is installed on the operating table of cabinet 1. This assembly is used to classify or centrally store the tested magnetic rings. The discharging assembly includes a base plate 4 on the operating table of cabinet 1. The base plate 4 is a rectangular plate fixed to the side of the operating table away from the transfer mechanism. A storage box 41, which reciprocates along the length of the base plate 4, is an open-top box with internal partitions that divide the internal space into multiple storage compartments. Two parallel linear slide rails 43 are installed along the length of the base plate 4 and fixed to the upper surface of the base plate 4. A bottom section of the storage box 41 is also included. The storage box 41 is slidably connected to the slide rail 43. The support 42 is a rectangular frame structure with a slider at its bottom that matches the slide rail 43, allowing the storage box 41 to slide smoothly along the slide rail 43. An electric telescopic rod 44, whose output end is fixedly connected to the support 42, drives the storage box 41 to reciprocate. The cylinder of the electric telescopic rod 44 is fixed to one end of the base plate 4, and its output end extends and retracts along the length of the slide rail 43, moving the storage box 41 through the support 42 to switch between different storage compartments. The storage box 41 is tilted, with the end closer to the gripping component higher than the end further away. This tilt angle allows the magnetic ring to slide along the bottom of the box to the bottom of the storage compartment after falling in, preventing the magnetic ring from falling directly and causing damage.

[0031] A flaw detection assembly 35, mounted on the mounting plate 11, is used to detect surface and near-surface defects of the rotating magnetic ring during its rotation. The flaw detection assembly 35 includes a support, which is a plate-shaped structure fixed to the mounting plate 11; a linear module, a ball screw slide, mounted on the support and facing the gripping assembly, with its guide rails arranged horizontally and parallel to the axis of the rotating part 33 of the gripping assembly; and a flaw detection module, a eddy current detection probe, located at the drive end of the linear module. This module is coaxial with the gripping assembly and its detection end faces the gripping assembly. Driven by the linear module, it can move closer to or further away from the magnetic ring along the axis, ensuring that the probe maintains a preset distance from the magnetic ring during detection. The coaxial arrangement ensures the relative position of the probe and the magnetic ring remains stable during detection, improving detection accuracy.

[0032] A fixing assembly for placing the magnetic ring is mounted on the mounting plate 11. This fixing assembly temporarily places the magnetic ring between the transfer mechanism and the gripping assembly, facilitating precise gripping by the gripping assembly. The fixing assembly includes a vertically mounted support plate 36 on the mounting plate 11. The support plate 36 is a rectangular plate fixed to the mounting plate 11 and located between the transfer mechanism and the gripping assembly. A third cylinder 37 is mounted on the support plate 36. A clamping assembly 38 is located at the output end of the third cylinder 37. The clamping assembly 38 includes two opposing clamping arms. The inner side of the clamping arms is an arc-shaped surface adapted to the outer circle of the magnetic ring. The third cylinder 37 is used to adjust the height of the clamping assembly 38. When the transfer mechanism places the magnetic ring between the clamping assemblies 38, the clamping arms clamp the magnetic ring, ensuring the accurate positioning of the gripping assembly during gripping.

[0033] The magnetic ring is transported to the top of the fixing component via a transfer mechanism. At this time, the clamping component 38 opens, the gripper releases the magnetic ring, and the magnetic ring falls between the two clamping arms. The clamping arms close, and the magnetic ring is temporarily fixed by the arc-shaped surface fitting against the outer circle of the magnetic ring. Two sets of sensor components 3 detect in real time whether there is a magnetic ring at the fixing component. When the magnetic ring is detected to be in place, the second cylinder 31 extends horizontally, driving the support frame 32 to move towards the fixing component, so that the three-jaw chuck 34 aligns with the magnetic ring and retracts to clamp the magnetic ring; at the same time, the clamping arms of the fixing component open and release the magnetic ring. The motor of the gripping component rotates, driving the rotating part 33 and the magnetic ring on the three-jaw chuck 34 to rotate at a constant speed through the drive wheel, belt, and driven wheel. Synchronously, the linear module of the flaw detection component 35 drives the flaw detection module to move along the axial direction, so that the probe maintains a preset gap with the outer or inner circle of the magnetic ring and is aligned with the axis; the probe is passed an alternating current to generate an alternating magnetic field, which penetrates the surface of the magnetic ring and induces eddy currents inside the magnetic ring.

[0034] If there are defects such as cracks or inclusions on or near the surface of the magnetic ring, the defects will hinder the flow of eddy currents, causing distortion of the eddy current distribution, which in turn will cause the impedance of the probe coil to change. After the flaw detection module captures the impedance change signal, it converts it into an electrical signal and transmits it to the external detection instrument. The instrument analyzes the signal to determine whether there are defects in the magnetic ring.

[0035] After the inspection is completed, the linear module drives the flaw detection module back to its initial position, the motor stops running, and the magnetic ring stops rotating. The transfer mechanism then operates again: the first cylinder 21 drives the magnetic ring gripper 23 to move to the gripping component, the gripper opens and covers the inspected magnetic ring, the three-jaw chuck 34 releases the magnetic ring, and the gripper closes to grip the magnetic ring; the second cylinder 31 retracts, driving the support frame 32 and the three-jaw chuck 34 back to their initial positions.

[0036] The magnetic ring of the transfer mechanism is transported to the storage box 41 of the discharge assembly. The gripper releases, and the magnetic ring falls into the storage box 41. Since the storage box 41 is tilted, the magnetic ring slides along the bottom of the box to the corresponding storage cavity. If the sample is found to be a qualified part, the electric telescopic rod 44 drives the storage box 41 to move along the slide rail 43, aligning the qualified cavity with the discharge position. Unqualified parts are switched to the corresponding unqualified cavity. The switching logic is implemented by an external control system based on the flaw detection signal, which is existing technology. When a storage cavity is full, the electric telescopic rod 44 continues to drive the storage box 41 to move, switching to an empty storage cavity, thus achieving continuous discharge and storage.

[0037] Throughout the process, the sensor 3 components monitor the position of the magnetic ring at the fixing and gripping components in real time, providing signals for the action triggering of the transfer mechanism and gripping components. This ensures that all mechanisms work together in an orderly manner, realizing the automated flow of the magnetic ring from gripping, flaw detection to sorting and discharging. The transfer mechanism enables automated transport of magnetic rings between storage locations, fixing components, and discharge components, reducing manual intervention. The gripping component stably grips the magnetic rings using a three-jaw chuck 34, and a motor-driven rotating structure rotates the magnetic rings. Combined with the coaxially arranged flaw detection component 35, eddy current flaw detection of the entire circumference of the magnetic rings can be achieved, improving the comprehensiveness and accuracy of the inspection. The fixing component temporarily positions the magnetic rings using a clamping structure, ensuring the gripping accuracy of the gripping component. The sensor component 3 assists in determining the position of the magnetic rings, ensuring the coordination of the actions of each mechanism. The discharge component uses a sliding tilting storage box 41 to achieve orderly storage of the magnetic rings, avoiding damage to them. The overall device integrates transportation, positioning, detection, and storage functions, with a high degree of automation, effectively improving the efficiency and reliability of eddy current flaw detection of magnetic rings.

[0038] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A discharge device for eddy current testing of magnetic rings, characterized in that: The device includes a cabinet (1) on which a mounting plate (11) is provided; a transfer mechanism for transporting magnetic rings on the operating table of the cabinet (1); a gripping assembly for gripping and rotating magnetic rings on the mounting plate (11); a discharge assembly for storing magnetic rings on the operating table of the cabinet (1); a flaw detection assembly (35) on the mounting plate (11) for detecting flaws in rotating magnetic rings; and a fixing assembly on the mounting plate (11) for placing magnetic rings.

2. The eddy current testing discharge device for magnetic ring inspection according to claim 1, characterized in that: The transfer mechanism includes: a lifting frame (2); a first cylinder (21) disposed on the lifting frame (2) and reciprocating along its width direction, the first cylinder (21) being distributed along the height direction of the lifting frame (2); a connecting frame (22) disposed at the output end of the first cylinder (21); and a magnetic ring claw (23) disposed on the connecting frame (22).

3. The eddy current testing discharge device for magnetic ring inspection according to claim 1, characterized in that: The gripping assembly includes: a second cylinder (31) disposed on the mounting plate (11) facing the flaw detection assembly (35); a support frame (32) disposed at the output end of the second cylinder (31) and vertically arranged; a rotating part (33) rotatably disposed on the support frame (32) facing the flaw detection assembly (35); and a three-jaw chuck (34) disposed at the end of the rotating part (33) for gripping magnetic rings.

4. The eddy current testing discharge device for magnetic ring inspection according to claim 1, characterized in that: The grasping component further includes a sensor (3) component, which includes a rod (39) fixed on the operating table and a sensor (3) on the rod (39). The sensor (3) component has two sets, and the two sets of sensors (3) are mirror images of each other with the fixed component as the axis of symmetry.

5. The eddy current testing discharge device for magnetic ring inspection according to claim 1, characterized in that: The flaw detection assembly (35) includes a support; a linear module disposed on the support and facing the gripping assembly; and a flaw detection module disposed at the transmission end of the linear module, the flaw detection module being coaxially arranged with the gripping assembly.

6. The eddy current testing discharge device for magnetic ring inspection according to claim 1, characterized in that: The fixing assembly includes a support plate (36) vertically mounted on the mounting plate (11); a third cylinder (37) mounted on the support plate (36); and a clamping assembly (38) mounted on the output end of the third cylinder (37).

7. The eddy current testing discharge device for magnetic ring inspection according to claim 1, characterized in that: A discharging assembly for storing magnetic rings is provided on the operating table of cabinet 1. The discharging assembly includes: a base plate (4) provided on the operating table of cabinet (1); a storage box (41) that reciprocates along the length of the base plate (4); a slide rail (43) provided along the length of the base plate (4); a bracket (42) provided at the bottom of the storage box (41) and slidably connected to the slide rail (43); and an electric telescopic rod (44) whose output end is fixedly connected to the bracket (42) for driving the storage box (41) to reciprocate.

8. The eddy current testing discharge device for magnetic ring inspection according to claim 3, characterized in that: The support frame (32) is rotatably provided with a driven wheel, one end of which is fixedly connected to the rotating part (33). The support frame (32) is also provided with an adjusting wheel and a driving wheel. The support frame (32) is provided with a motor that drives the driving wheel to rotate. The driving wheel, the driven wheel, and the adjusting wheel are fitted with belts.

9. The eddy current testing discharge device for magnetic ring inspection according to claim 7, characterized in that: The storage box (41) is set at an angle, and the storage box (41) is provided with a partition.

10. The eddy current testing discharge device for magnetic ring inspection according to claim 3, characterized in that: The support frame (32) is L-shaped.

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