Sintered neodymium-iron-boron magnet appearance detection equipment

Abstract

The utility model relates to the technical field of sintered neodymium-iron-boron magnet appearance detection, in particular to sintered neodymium-iron-boron magnet appearance detection equipment which comprises a conveying line, a plurality of rotating bases are arranged on the conveying line, placing plates are rotationally connected to the rotating bases, and the placing plates are driven by a first motor. The telescopic rod is used for driving the turnover mechanism to vertically move up and down, and the image collecting device is used for collecting images of the outer surface of the sintered neodymium-iron-boron magnet. The appearance information of the sintered neodymium-iron-boron magnet on the conveying line can be detected and collected through the image collecting device, the sintered neodymium-iron-boron magnet can be overturned through the overturning mechanism, the face, making contact with the containing plate, of the sintered neodymium-iron-boron magnet is exposed in the detection range of the image collecting device, and in the process, the appearance information of the sintered neodymium-iron-boron magnet can be detected and collected. The appearance of the sintered neodymium-iron-boron magnet can be detected in all directions, and the detection effect of the equipment on the sintered neodymium-iron-boron magnet can be improved.

Description

Technical Field

[0001] This utility model relates to an appearance inspection device, and more particularly to an appearance inspection device for sintered NdFeB magnets, belonging to the field of appearance inspection technology for sintered NdFeB magnets. Background Art

[0002] Sintered NdFeB magnets are widely used in various equipment, such as motors, loudspeakers, and magnetic separators. Their external dimensions need to meet specific assembly requirements. If the external dimensions are not up to standard, the magnet may not be able to be installed correctly in the equipment, affecting the normal operation of the equipment. During the manufacturing and production of sintered NdFeB magnets, certain defects may sometimes occur on their surface, such as cracks, chipped edges, pitting, and knife marks.

[0003] To ensure that sintered NdFeB magnets meet usage requirements, they are typically observed and inspected using specialized equipment after forming. This equipment works by capturing images of the rotating NdFeB magnets using a camera, processing these images using a recognition system, and marking any defective magnets. However, during use, especially with square NdFeB magnets, the side in contact with the conveyor platform cannot be captured by the camera, hindering image acquisition and appearance inspection.

[0004] Therefore, there is an urgent need to improve the appearance inspection equipment for sintered NdFeB magnets in order to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide an appearance inspection device for sintered NdFeB magnets. The device incorporates a flipping mechanism and an image collection device. The image collection device detects and collects appearance information of the sintered NdFeB magnets on the conveyor line, while the flipping mechanism flips the magnets so that the side in contact with the placement plate is exposed to the detection range of the image collection device. This avoids blind spots caused by the magnets contacting the plate, allowing for comprehensive inspection of the magnets' appearance and improving the overall inspection effectiveness.

[0006] To achieve the above objectives, the main technical solution adopted by this utility model includes: a conveyor line with several rotating bases, on which a placement plate is rotatably connected, and the placement plate is driven by a motor; a flipping mechanism including a clamping assembly and a rotating assembly, the clamping assembly for clamping the sintered NdFeB magnets located on the placement plate, and the rotating assembly for rotating the clamping assembly; a telescopic rod, the movable end of which is connected to the flipping mechanism, and the telescopic rod for driving the flipping mechanism to move vertically up and down; and two image collection devices located above and to the side of the conveyor line, respectively, for collecting images of the surface of the sintered NdFeB magnets.

[0007] Preferably, the clamping assembly includes a sliding block with a sliding groove, two clamping plates slidably connected to the sliding groove, an inclined block with an inclined groove, and a tension rod slidably connected to the two inclined grooves. The inclined block is connected to one end of the clamping plate, and the other end of the clamping plate extends to the position directly above the placement plate. By pulling the tension rod, the two clamping plates can move synchronously.

[0008] Preferably, the clamping assembly further includes a fixed frame fixedly connected to the slide block, a motor mounted on the fixed frame, and a threaded rod rotatably connected to the fixed frame, one end of which passes through a tensioning rod and is threadedly connected to the tensioning rod.

[0009] Preferably, an elastic pad is connected to the side of the clamping plate away from the inclined block, and the elastic pad is provided with anti-slip texture.

[0010] Preferably, it further includes a sliding rail and a sliding block slidably connected to the sliding rail, the movable end of the telescopic rod is connected to the sliding block, the rotating assembly includes a motor three mounted on the sliding block and a connecting frame fixedly connected to the fixed frame, the output end of the motor three passes through the sliding block and is connected to the connecting frame.

[0011] Preferably, the conveyor line is provided with a device frame on the side away from the flipping mechanism, the two image collecting devices are connected to the device frame, and the device frame corresponds to the position of the clamping assembly.

[0012] This utility model has at least the following beneficial effects:

[0013] 1. By setting up a flipping mechanism and an image collection device on the equipment, the image collection device can detect and collect the appearance information of the sintered NdFeB magnets on the conveyor line, while the flipping mechanism can flip the sintered NdFeB magnets so that the side in contact with the placement plate is exposed to the detection range of the image collection device, avoiding blind spots caused by the contact between the sintered NdFeB magnets and the placement plate. In this process, the appearance of the sintered NdFeB magnets can be detected from all angles, which is beneficial to improving the detection effect of the equipment on sintered NdFeB magnets. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a schematic diagram of the isometric structure provided by this utility model;

[0016] Figure 2 A cross-sectional structural schematic diagram provided for this utility model;

[0017] Figure 3 Provided by this utility model Figure 1 Schematic diagram of the middle section;

[0018] Figure 4 A three-dimensional structural diagram of the flipping mechanism provided by this utility model.

[0019] In the diagram: 1. Conveyor line; 2. Rotating base; 3. Placement plate; 4. Motor 1; 5. Clamping assembly; 6. Rotating assembly; 7. Telescopic rod; 8. Image collection device; 9. Sliding block; 900. Sliding groove; 10. Clamping plate; 11. Inclined groove block; 12. Inclined groove; 13. Tensioning rod; 14. Fixing frame; 15. Threaded rod; 16. Elastic pad; 17. Anti-slip texture; 18. Motor 2; 19. Sliding track; 20. Sliding block; 21. Motor 3; 22. Connecting frame; 23. Device frame. Detailed Implementation

[0020] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0021] like Figures 1-4As shown, the sintered NdFeB magnet appearance inspection equipment provided in this embodiment includes a conveyor line 1. This conveyor line 1 is existing technology equipment, mainly used as an assembly line for conveying sintered NdFeB magnets in production lines related to sintered NdFeB magnets. It will not be described in detail here, nor is it clearly marked in the figure. The conveyor line 1 is equipped with several rotating bases 2, and a placement plate 3 is rotatably connected to each rotating base 2. The placement plate 3 is driven by a motor 4. Both the rotating bases 2 and the placement plate 3 are existing technology structures, mainly for facilitating the inspection of... While the sintered NdFeB magnets are being transported, they are observed from multiple angles. During use, the conveyor line 1 transports the sintered NdFeB magnets placed on the placement plate 3 one by one to the relevant equipment, which then observes and tests the magnets. However, for some square sintered NdFeB magnets, since they are placed on the placement plate 3, the side of the magnet in contact with the plate 3 cannot be captured by the camera, thus affecting the image collection of the magnets.

[0022] To address the aforementioned issues, the device for observing the appearance of sintered NdFeB magnets further includes: a flipping mechanism, a telescopic rod 7 for driving the flipping mechanism to move vertically up and down, and an image collection device 8 for collecting images of the sintered NdFeB magnet's appearance. Specifically, the flipping mechanism includes a clamping assembly 5 and a rotating assembly 6. The clamping assembly 5 is used to clamp the sintered NdFeB magnet located on the placement plate 3, and the rotating assembly 6 is used to rotate the clamping assembly 5. The movable end of the telescopic rod 7 is connected to the flipping mechanism. The two image collection devices 8, located above and to the side of the conveyor line 1 respectively, can collect images of the upper side and the surrounding sides of the sintered NdFeB magnet. The image collection device 8 is preferably a high-definition industrial camera in the prior art. Its operating principle will not be described in detail, but its main purpose is to collect appearance information of the sintered NdFeB magnet. When using the above structure, it can be installed in a suitable position on the existing equipment, and will not be described in detail.

[0023] When the above structures are used in conjunction, the conveyor line 1 transports the sintered NdFeB magnets located on the placement plate 3 to the corresponding position of the image collection device 8. Then, the placement plate 3 is driven by the motor 4 to rotate on the rotating base 2. During the rotation, the side of the sintered NdFeB magnet is imaged by the corresponding image collection device 8, while the upper surface of the sintered NdFeB magnet is imaged by another image collection device 8. After the image collection is completed, the telescopic rod 7 is activated, which moves the entire flipping mechanism toward the location of the sintered NdFeB magnet. The clamping component 5 on the flipping mechanism then clamps the sintered NdFeB magnet. The telescopic rod 7 then moves the flipping mechanism upward. After moving upward to a certain position, the rotating component 6 is activated, rotating the clamping component 5 180°, causing the sintered NdFeB magnet to also flip 180°. Then, the image collection device 8 is activated. The telescopic rod 7 drives the flipping mechanism to move downwards. When the sintered NdFeB magnet comes into contact with the placement plate 3, the movable end of the telescopic rod 7 stops moving. Then, the clamping assembly 5 releases the sintered NdFeB magnet. At this time, the side of the sintered NdFeB magnet that was originally in contact with the placement plate 3 will be reversed, and its appearance information can be collected by the image collection device 8 located above the conveyor line 1. Finally, the image collection device 8 sends the collected image information into the processing system for identification and processing. At the same time, the conveyor line 1 continues to run, sending the next sintered NdFeB magnet to be inspected to the corresponding position in front of the image collection device 8. Then, the appearance of the sintered NdFeB magnet is inspected. This process is repeated. In this process, the appearance of the sintered NdFeB magnet can be inspected from all angles, avoiding blind spots caused by the contact between the sintered NdFeB magnet and the placement plate 3, which helps to improve the inspection effect of the equipment on the sintered NdFeB magnet.

[0024] The clamping assembly 5 includes a sliding block 9 with a sliding groove 900, two clamping plates 10 slidably connected to the sliding groove 900, an inclined block 11 with an inclined groove 12, and a tensioning rod 13 slidably connected to the two inclined grooves 12. The two inclined blocks 11 are positioned opposite each other, and the inclined grooves 12 on the two inclined blocks 11 are positioned opposite each other. The inclined block 11 is connected to one end of the clamping plate 10, and the other end of the clamping plate 10 extends to the position directly above the placement plate 3. By pulling the tensioning rod 13 to slide on the inclined groove 12, the two inclined blocks 11 are moved in the same or opposite directions, thereby realizing the synchronous movement of the two clamping plates 10.

[0025] The clamping assembly 5 also includes a fixed frame 14 fixedly connected to the slide block 9, a motor 18 mounted on the fixed frame 14, and a threaded rod 15 rotatably connected to the fixed frame 14. One end of the threaded rod 15 passes through the tension rod 13 and is threadedly connected to the tension rod 13. In use, the motor 18 drives the threaded rod 15 to rotate on the fixed frame 14, and the tension rod 13 moves back and forth through the rotation of the threaded rod 15.

[0026] An elastic pad 16 is connected to the side of the clamping plate 10 away from the inclined slot block 11 to ensure that the clamping plate 10 will not damage the edges and corners of the sintered NdFeB magnet when clamping it, and to increase the stability of the sintered NdFeB magnet when it is clamped. The elastic pad 16 is also provided with anti-slip texture 17 to further increase the clamping effect of the clamping plate 10, so that the sintered NdFeB magnet will not easily fall off.

[0027] Furthermore, the above structure also includes a sliding rail 19 and a sliding block 20 slidably connected to the sliding rail 19. The movable end of the telescopic rod 7 is connected to the sliding block 20. The rotating component 6 includes a motor 21 mounted on the sliding block 20 and a connecting frame 22 fixedly connected to the fixed frame 14. The output end of the motor 21 passes through the sliding block 20 and is connected to the connecting frame 22. The motor 21 drives the connecting frame 22 to rotate, thereby driving the fixed frame 14 connected to the connecting frame 22 to rotate, and thus driving the structure connected to the fixed frame 14 to rotate.

[0028] Furthermore, in order to facilitate the installation of the image collection device 8, a device frame 23 is provided on the side of the conveyor line 1 away from the flipping mechanism. The two image collection devices 8 are connected to the device frame 23, and the device frame 23 corresponds to the position of the clamping assembly 5.

[0029] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0030] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0031] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A sintered NdFeB magnet appearance inspection device, comprising a conveyor line (1), wherein a plurality of rotating bases (2) are provided on the conveyor line (1), and a placement plate (3) is rotatably connected to the rotating bases (2), wherein the placement plate (3) is driven by a motor (4), characterized in that: Also includes: A flipping mechanism, comprising a clamping assembly (5) and a rotating assembly (6), wherein the clamping assembly (5) is used to clamp a sintered NdFeB magnet located on a placement plate (3), and the rotating assembly (6) is used to rotate the clamping assembly (5); Telescopic rod (7), the movable end of which is connected to the flipping mechanism, the telescopic rod (7) is used to drive the flipping mechanism to move vertically up and down; Two image collection devices (8) are located above and to the side of the conveyor line (1), respectively, and the image collection devices (8) are used to collect images of the surface of the sintered NdFeB magnet.

2. The appearance inspection equipment for sintered NdFeB magnets according to claim 1, characterized in that: The clamping assembly (5) includes a sliding block (9) with a sliding groove (900), two clamping plates (10) slidably connected to the sliding groove (900), an inclined block (11) with an inclined groove (12), and a tension rod (13) slidably connected to the two inclined grooves (12). The inclined block (11) is connected to one end of the clamping plate (10), and the other end of the clamping plate (10) extends to the position directly above the placement plate (3). By pulling the tension rod (13), the two clamping plates (10) can move synchronously.

3. The appearance inspection equipment for sintered NdFeB magnets according to claim 2, characterized in that: The clamping assembly (5) also includes a fixed frame (14) fixedly connected to the slide block (9), a motor (18) mounted on the fixed frame (14), and a threaded rod (15) rotatably connected to the fixed frame (14). One end of the threaded rod (15) passes through the tension rod (13) and is threadedly connected to the tension rod (13).

4. The appearance inspection equipment for sintered NdFeB magnets according to claim 2, characterized in that: An elastic pad (16) is connected to the side of the clamping plate (10) away from the inclined groove block (11), and the elastic pad (16) is provided with anti-slip texture (17).

5. The appearance inspection equipment for sintered NdFeB magnets according to claim 3, characterized in that: It also includes a sliding rail (19) and a sliding block (20) slidably connected to the sliding rail (19). The movable end of the telescopic rod (7) is connected to the sliding block (20). The rotating assembly (6) includes a motor three (21) mounted on the sliding block (20) and a connecting frame (22) fixedly connected to the fixed frame (14). The output end of the motor three (21) passes through the sliding block (20) and is connected to the connecting frame (22).

6. The appearance inspection equipment for sintered NdFeB magnets according to claim 1, characterized in that: The conveyor line (1) is provided with a device frame (23) on the side away from the flipping mechanism. Two image collection devices (8) are connected to the device frame (23), and the device frame (23) is positioned opposite to the clamping assembly (5).

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