Magnetic piece detection tool

By designing automated magnetic component inspection fixtures and using vision components to capture and fit magnetic pole distribution images, the problems of high manpower requirements and low inspection accuracy in existing technologies have been solved, achieving efficient and accurate magnetic component inspection.

CN223551873UActive Publication Date: 2025-11-14NINGBO ZHONGKE BONA MAGNETOELECTRIC CO LTD
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Patent Information

Application Number
CN202423008725.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-11-14
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

The current magnetic component testing process requires a lot of manpower, resulting in low efficiency and the accuracy of the test results needs to be improved.

Method used

Design a magnetic component inspection fixture that includes a tooling frame, a conveyor belt, a moving mechanism, a vision component, and a magnetic pole observation plate. The vision component is used to capture an image of the magnetic pole distribution on the magnetic pole observation plate, and the image is fitted with a standard image to determine whether it conforms to the standard.

Benefits of technology

It achieves a high degree of automation, reduces manual labor, and provides accurate and reliable test results, thereby improving testing efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a magnetic member detection tool, comprising a tool rack provided with a conveyer belt; the conveying belt is sequentially provided with a feeding station, a detection station and a material receiving station in the conveying direction. The detection station is provided with a moving mechanism and a visual assembly. A magnetic pole observation piece is arranged at the moving end of the moving mechanism, and the moving end of the moving mechanism can drive the magnetic pole observation piece to move to the position above the conveying belt or away from the position above the conveying belt; when the magnetic pole observation piece moves to the position above the conveying belt, the magnetic part on the conveying belt is located below the magnetic pole observation piece, the magnetic pole observation piece can develop magnetic pole distribution, and the visual assembly shoots the magnetic pole observation piece so as to collect the magnetic pole distribution developed by the magnetic pole observation piece and transmit data to the display assembly; the utility model relates to the technical field of magnetic part production.
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Description

Technical Field

[0001] This utility model relates to the field of magnetic component manufacturing technology, and more specifically to a magnetic component testing fixture. Background Technology

[0002] Magnetic components can be magnets or components with magnets inside;

[0003] In the production process of magnetic components, it is generally necessary to inspect the magnetic components. Existing inspection methods include the detection of magnetic field distribution. This is usually done by bringing an iron powder box or magnetic pole observation plate close to the magnetic component and then observing the image developed by the iron powder box or magnetic pole observation plate, which is relatively intuitive.

[0004] However, the above-mentioned procedures require a lot of manpower, resulting in low efficiency and the accuracy of the test results needs to be improved. Utility Model Content

[0005] To address the shortcomings and defects of existing technologies, a magnetic component testing fixture is provided that requires less manual labor, is highly efficient, and provides accurate and reliable test results.

[0006] A tooling for inspecting magnetic components, comprising:

[0007] Tooling frame, wherein the tooling frame is equipped with a conveyor belt;

[0008] The conveyor belt is provided with a feeding station, an inspection station, and a receiving station in sequence along the conveying direction;

[0009] The inspection station is equipped with a moving mechanism and a vision component;

[0010] The moving end of the moving mechanism is equipped with a magnetic pole observation plate, and the moving end of the moving mechanism can drive the magnetic pole observation plate to move above the conveyor belt or away from the conveyor belt.

[0011] When the magnetic pole observation sheet moves above the conveyor belt, the magnetic components on the conveyor belt are below the magnetic pole observation sheet. The magnetic pole observation sheet can display the magnetic pole distribution. The vision component takes a picture of the magnetic pole observation sheet to collect the magnetic pole distribution displayed on the magnetic pole display film and transmits the data to the display component.

[0012] With the above structure, the magnetic component testing fixture of this utility model has the following advantages compared with the prior art: When in use, the magnetic component is first placed at the testing station. Under the conveying action of the conveyor belt, the magnetic component enters the testing station. If the magnetic component passes under the magnetic pole observation plate, the magnetic pole observation plate can display the magnetic pole distribution of the magnetic component.

[0013] Furthermore, the vision component takes a picture of the magnetic pole observation sheet to obtain an image of the magnetic pole distribution of the magnetic component. The vision component then transmits the acquired data to the display component, which displays the image of the magnetic pole distribution of the magnetic component. The display component can also store a standard magnetic pole distribution image of the magnetic component. By fitting the magnetic pole distribution image acquired by the vision component with the standard magnetic pole distribution image, it can be determined whether the magnetic component conforms to the standard.

[0014] The entire testing process requires less manual labor, has a high degree of automation, improves efficiency, and provides accurate and reliable test results.

[0015] The magnetic pole observation sheet is placed at the moving end of the moving mechanism. When the moving end moves the magnetic pole observation sheet above the conveyor belt, it is in close contact with the magnetic component on the conveyor belt and is subjected to the magnetic effect of the magnetic component, thus enabling the magnetic pole to be visualized.

[0016] After the vision component captures the magnetic poles of the above-mentioned image, the mobile terminal moves the magnetic pole observation piece to a position above the conveyor belt, away from the magnetic component. At this point, the magnetic pole observation piece is far from the magnetic component and loses its magnetic effect, returning to its initial state (no displayed magnetic pole distribution image). When inspecting the next magnetic component, the mobile terminal moves the magnetic pole observation piece above the conveyor belt again. The magnetic pole observation piece undergoes a reset process for each magnetic pole detection, ensuring that the detection results do not affect each other and improving the accuracy of the detection results.

[0017] As an improvement of this utility model, the moving mechanism includes a lifting cylinder mounted on the tooling frame;

[0018] The lifting end of the lifting cylinder serves as the moving end, and the lifting end is equipped with a bracket. The bracket is placed above the conveyor belt, and the magnetic pole observation plate is mounted on the bracket.

[0019] As an improvement of this utility model, the bracket is made of transparent material, and the bottom of the bracket has two crossbars, forming an assembly groove between the crossbars and the bottom of the bracket;

[0020] The two longitudinal ends of the magnetic pole observation plate are respectively placed in the assembly slot.

[0021] As an improvement of this utility model, the tooling frame is also provided with a lighting component, and the irradiation end of the lighting component is positioned above the support.

[0022] As an improvement of this utility model, the vision component includes a CCD camera, and the tooling frame is provided with a vertical rod.

[0023] The CCD camera is mounted at the front end of a mounting base, and the CCD camera is positioned above the bracket. The rear end of the mounting base is equipped with a clamp that can be held onto a vertical rod.

[0024] As an improvement of this utility model, the receiving station is provided with a non-conforming material collection mechanism, which includes a hopper and a push rod;

[0025] The hopper is located on one side of the conveyor belt, and the push rod is located on the other side of the conveyor belt. The output end of the push rod extends to push the magnetic components on the conveyor belt into the hopper.

[0026] As an improvement of this utility model, a guiding mechanism is provided above the conveyor belt from the feeding station to the inspection station. The guiding mechanism includes two guide seats, which are arranged opposite to each other and form a guide groove extending along the conveying direction between them. The tail end of the guide groove is set at the middle position of the magnetic pole observation plate. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is a schematic diagram of the structure behind the hidden display component of this utility model.

[0029] Figure 3 This is the utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0030] Figure 4 This is a schematic diagram of the moving mechanism of this utility model.

[0031] Figure 5 This is the utility model Figure 4 A schematic diagram of the structure of a partial component under explosive conditions.

[0032] The following components are shown in the diagram: 1. Tooling frame; 1.1. Vertical bar; 2. Conveyor belt; 2.1. Feeding station; 2.2. Inspection station; 2.3. Receiving station; 3. Moving mechanism; 3.1. Lifting cylinder; 4. Vision assembly; 4.1. CCD camera; 4.2. Fixture; 5. Magnetic observation plate; 6. Display assembly; 7. Bracket; 7.1. Horizontal bar; 7.1. Assembly slot; 8. Lighting assembly; 9. Hopper; 10. Push rod; 11. Guide seat; 11.1. Guide slot; 12. Magnetic component. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] Please see Figure 1-5 As shown, a testing fixture for a magnetic component 12 includes:

[0035] Tooling frame 1, wherein the tooling frame 1 is equipped with a conveyor belt 2;

[0036] The conveyor belt 2 is provided with a feeding station 2.1, an inspection station 2.2, and a receiving station 2.3 in sequence along the conveying direction;

[0037] The inspection station 2.2 is equipped with a moving mechanism 3 and a vision component 4;

[0038] The moving end of the moving mechanism 3 is provided with a magnetic pole observation plate 5, and the moving end of the moving mechanism 3 can drive the magnetic pole observation plate 5 to move above the conveyor belt 2 or away from the conveyor belt 2.

[0039] When the magnetic pole observation piece 5 moves above the conveyor belt 2, the magnetic component 12 on the conveyor belt 2 is below the magnetic pole observation piece 5. The magnetic pole observation piece 5 can display the magnetic pole distribution. The vision component 4 takes a picture of the magnetic pole observation piece 5 to collect the magnetic pole distribution displayed by the magnetic pole observation piece and transmits the data to the display component 6.

[0040] With the above structure, the magnetic component 12 detection fixture of this utility model has the following advantages compared with the prior art: When in use, the magnetic component 12 is first placed at the detection station 2.2. Under the conveying action of the conveyor belt 2, the magnetic component 12 enters the detection station 2.2. If the magnetic component 12 passes under the magnetic pole observation plate 5, the magnetic pole observation plate 5 can display the magnetic pole distribution of the magnetic component 12.

[0041] Furthermore, the vision component 4 captures an image of the magnetic pole distribution of the magnetic component 12 on the magnetic pole observation plate 5. The vision component 4 then transmits the acquired data to the display component 6, which displays the magnetic pole distribution image of the magnetic component 12. The display component 6 also stores a standard magnetic pole distribution image of the magnetic component 12. By fitting the magnetic pole distribution image acquired by the vision component 4 with the standard magnetic pole distribution image, it can be determined whether the magnetic component 12 conforms to the standard.

[0042] The entire testing process requires less manual labor, has a high degree of automation, improves efficiency, and provides accurate and reliable test results.

[0043] The magnetic pole observation piece 5 is placed at the moving end of the moving mechanism 3. When the moving end moves the magnetic pole observation piece 5 above the conveyor belt 2, it is in close contact with the magnetic element 12 on the conveyor belt 2 and is subjected to the magnetic effect of the magnetic element 12, thereby enabling the magnetic pole to be visualized.

[0044] After the vision component 4 completes the imaging of the magnetic poles, the mobile terminal moves the magnetic pole observation piece 5 to a position above the conveyor belt 2, away from the magnetic component 12. At this time, the magnetic pole observation piece 5 is far from the magnetic component 12 and loses its magnetic effect, thus returning to its initial state (no displayed magnetic pole distribution image). When inspecting the next magnetic component 12, the mobile terminal moves the magnetic pole observation piece 5 to a position above the conveyor belt 2 again. The magnetic pole observation piece 5 undergoes a reset process for each magnetic pole detection, so the detection results do not affect each other, thus improving the accuracy of the detection results.

[0045] As an improvement of this utility model, the moving mechanism 3 includes a lifting cylinder 3.1 disposed on the tooling frame 1;

[0046] The lifting cylinder 3.1 has a lifting end that serves as a moving end, and the lifting end is provided with a bracket 7. The bracket 7 is placed above the conveyor belt 2, and the magnetic pole observation plate 5 is placed on the bracket 7.

[0047] When the lifting end of the lifting cylinder 3.1 rises, it moves the magnetic pole observation plate 5 away from the top of the conveyor belt 2 (away from the magnetic component 12). When the lifting end falls, it moves the magnetic pole observation plate 5 closer to the top of the conveyor belt 2 (closer to the magnetic component 12).

[0048] The above improvements result in a product with a simple structure and stable and reliable operation.

[0049] As an improvement of this utility model, the bracket 7 is made of transparent material, and the bottom of the bracket 7 has two crossbars 7.1, forming an assembly groove 7.11 between the crossbars 7.1 and the bottom of the bracket 7;

[0050] The two ends of the magnetic pole observation piece 5 are respectively placed in the assembly groove 7.11.

[0051] Two mounting slots 7.11 support the longitudinal ends of the magnetic pole observation piece 5. The bracket 7 is transparent and flat. The bracket 7 presses on the magnetic pole observation piece 5 to effectively flatten it. The mounting slots 7.11 provide good support for the magnetic pole observation piece 5, making its position stable and improving the accuracy of the test results.

[0052] The two crossbars 7.1 are spaced apart, and the bracket 7 forms an opening so that the bottom of the magnetic pole observation plate 5 is exposed. The magnetic attraction of the magnetic component 12 can directly and closely act on the magnetic pole observation plate 5.

[0053] As an improvement of this utility model, the tooling frame 1 is also provided with a lighting component 8, and the irradiation end of the lighting component 8 is positioned above the support 7.

[0054] The lighting component 8 is preferably an LED light. The LED light is located above the bracket 7 and serves as an illumination, enabling the vision component 4 to clearly capture the image of the magnetic pole observation plate 5.

[0055] As an improvement of this utility model, the vision component 4 includes a CCD camera 4.1, and the tooling frame 1 is provided with a vertical rod 1.1.

[0056] The CCD camera 4.1 is mounted at the front end of a mounting base and is positioned above the bracket 7. The rear end of the mounting base is provided with a clamp 4.2 that can be clamped onto the vertical rod 1.1.

[0057] After the above improvements, the clamp 4.2 is detachably connected to the vertical rod 1.1, and the position of the clamp 4.2 on the vertical rod 1.1 can be adjusted to adjust the distance between the lens of the CCD camera 4.1 and the magnetic pole observation plate 5, so as to meet the usage requirements.

[0058] As an improvement of this utility model, the receiving station 2.3 is provided with a non-conforming material collection mechanism, which includes a hopper 9 and a push rod 10;

[0059] The hopper 9 is located on one side of the conveyor belt 2, and the push rod 10 is located on the other side of the conveyor belt 2. The output end of the push rod 10 extends to push the magnetic component 12 on the conveyor belt 2 into the hopper 9.

[0060] After the above improvements, if the magnetic component 12 is found to be non-compliant, the conveyor belt 2 will transport the magnetic component 12 to the position between the hopper 9 and the output end of the push rod 10. At this time, the output end of the push rod 10 will extend and push the non-compliant magnetic component into the hopper 9.

[0061] As an improvement of this utility model, a guiding mechanism is provided above the conveyor belt 2 from the feeding station 2.1 to the detection station 2.2. The guiding mechanism includes two guide seats 11, which are arranged opposite to each other and form a guide groove 11.1 extending along the conveying direction between them. The tail end of the guide groove 11.1 is set at the middle position of the magnetic pole observation piece 5.

[0062] The two guide seats 11 are adjustable in relative distance to adjust the width of the guide groove 11.1;

[0063] The guide groove 11.1 guides the conveyed magnetic component 12, allowing it to enter the middle position of the magnetic pole observation plate 5 in an orderly and accurate manner. This enables the magnetic pole observation plate 5 to accurately and completely display the magnetic pole distribution of the magnetic component 12, making the subsequent testing process reliable.

[0064] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A tooling for inspecting magnetic components, characterized in that, include: Tooling frame (1), the tooling frame (1) is provided with a conveyor belt (2) for conveying magnetic parts (12); The conveyor belt (2) is provided with a feeding station (2.1), an inspection station (2.2), and a receiving station (2.3) in sequence along the conveying direction; The inspection station (2.2) is equipped with a moving mechanism (3) and a vision component (4); The moving end of the moving mechanism (3) is provided with a magnetic pole observation plate (5), and the moving end of the moving mechanism (3) can drive the magnetic pole observation plate (5) to move above the conveyor belt (2) or away from the conveyor belt (2). When the magnetic pole observation sheet (5) moves above the conveyor belt (2), the magnetic component (12) on the conveyor belt (2) is below the magnetic pole observation sheet (5). The magnetic pole observation sheet (5) can display the magnetic pole distribution. The vision component (4) takes a picture of the magnetic pole observation sheet (5) to collect the magnetic pole distribution displayed by the magnetic pole observation sheet and transmits the data to the display component (6).

2. The magnetic component testing fixture according to claim 1, characterized in that: The moving mechanism (3) includes a lifting cylinder (3.1) mounted on the tooling frame (1); The lifting cylinder (3.1) has a lifting end as a moving end, and the lifting end is provided with a bracket (7). The bracket (7) is placed above the conveyor belt (2), and the magnetic pole observation plate (5) is placed on the bracket (7).

3. The magnetic component testing fixture according to claim 2, characterized in that: The bracket (7) is made of transparent material. The bottom of the bracket (7) has two crossbars (7.1), and an assembly groove (7.11) is formed between the crossbars (7.1) and the bottom of the bracket (7). The two ends of the magnetic pole observation piece (5) are respectively placed in the assembly slot (7.11).

4. The magnetic component testing fixture according to claim 3, characterized in that: The tooling frame (1) is also provided with a lighting component (8), and the irradiation end of the lighting component (8) is positioned above the bracket (7).

5. The magnetic component testing fixture according to claim 1, characterized in that: The vision component (4) includes a CCD camera (4.1), and the fixture (1) is provided with a vertical rod (1.1). The CCD camera (4.1) is mounted at the front end of a mounting base and is positioned above the bracket (7). The rear end of the mounting base is provided with a clamp (4.2) that can be clamped onto the vertical rod (1.1).

6. The magnetic component testing fixture according to claim 1, characterized in that: The receiving station (2.3) is equipped with a non-conforming material collection mechanism, which includes a hopper (9) and a push rod (10); The hopper (9) is located on one side of the conveyor belt (2), and the push rod (10) is located on the other side of the conveyor belt (2). The output end of the push rod (10) extends to push the magnetic component (12) on the conveyor belt (2) into the hopper (9).

7. The magnetic component testing fixture according to claim 1, characterized in that: A guiding mechanism is provided above the conveyor belt (2) from the feeding station (2.1) to the inspection station (2.2). The guiding mechanism includes two guide seats (11), which are arranged opposite to each other and form a guide groove (11.1) extending along the conveying direction between them. The tail end of the guide groove (11.1) is set at the middle position of the magnetic pole observation plate (5).