An automatic encoder magnetization device with an arc-shaped magnet

Abstract

This utility model belongs to the field of magnetization technology, and particularly relates to an automatic magnetization device for arc-shaped magnets. Addressing the problems of existing devices lacking automatic sorting of magnets with incorrect postures and cumbersome width adjustment operations, the following solution is proposed: It includes a base, a vibrating feeder, a magnetization guide rail, a magnetization box, a conveyor box, a pushing component, a return component, and a width adjustment mechanism. The conveyor box contains a belt conveyor I. The return component includes a return box and a belt conveyor II. The pushing component includes a cylinder I, a pushing block, and a photoelectric sensor. The return component also includes a cylinder II, a rejection block, and an industrial camera. The width adjustment mechanism achieves synchronous movement of two limiting plates through a motor, a bevel gear set, a threaded rod, and a connecting plate. This utility model can automatically identify and return magnets with incorrect postures, reducing manual intervention. Furthermore, the synchronous adjustment mechanism allows for rapid adaptation to various magnet specifications, improving magnetization efficiency and equipment versatility.

Description

Technical Field

[0001] This utility model relates to the field of magnet magnetization technology, and in particular to an automatic encoder magnetization device for arc-shaped magnets. Background Technology

[0002] Curved magnets are widely used in electronics, machinery and other fields. The magnetization process is a key step to ensure their performance. In the production process of curved magnets, the magnets to be magnetized need to be accurately transported to the magnetization area to complete the magnetization operation. Vibratory feeders are usually used to achieve continuous feeding.

[0003] However, traditional devices for magnetizing curved magnets lack effective identification and return mechanisms for magnets with incorrect orientations during transport, often requiring manual sorting. This not only increases labor costs but also reduces overall magnetization efficiency. Furthermore, adjusting the width of the device to accommodate various sizes of curved magnets is cumbersome, requiring adjustments to different parts separately, which is time-consuming and makes it difficult to ensure synchronization. Therefore, we propose an automatic encoder magnetizing device for curved magnets to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to solve the problems of traditional arc-shaped magnet magnetization devices, which have difficulty in identifying magnets with incorrect postures, require manual sorting, increase costs and reduce efficiency, and have the drawbacks of cumbersome and time-consuming operation and difficulty in ensuring synchronization when adjusting the width to adapt to various specifications of magnets. Therefore, an automatic arc-shaped magnet engraving and magnetization device is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic encoder magnetizing device for arc-shaped magnets includes a base and a vibrating feeder. A magnetizing guide rail and a magnetizing box are fixedly installed on the top of the base, and the magnetizing guide rail passes through the magnetizing area of ​​the magnetizing box.

[0007] A conveyor box is also fixedly installed on the top of the base. One end of the magnetizing guide rail is perpendicular to the conveyor box. A push port is opened on the side of the conveyor box near the magnetizing guide rail. The channel inside the magnetizing guide rail is connected to the push port. A belt conveyor I is installed inside the conveyor box. The push port is located above the belt conveyor I.

[0008] The base is provided with a pushing component for pushing the magnets in the delivery box to the magnetizing guide rail;

[0009] The base is also provided with a return assembly for returning the magnet with incorrect posture to the vibrating feed plate. The return assembly includes a return box, and a belt conveyor II is provided inside the return box. The conveyor box and the return box are provided with connected return ports on adjacent sides.

[0010] Limiting plate I and limiting plate II are respectively installed inside the conveying box and the magnetizing guide rail. Limiting plate I and limiting plate II are slidably connected by a connecting rod. A drive assembly for synchronously driving the two limiting plates is provided on the base.

[0011] In one possible design, the pushing assembly includes a cylinder I fixed to the base, the output end of the cylinder I is connected to a pushing block that can pass through the pushing port, the top of the conveying box is provided with a photoelectric sensor that cooperates with the cylinder I above the pushing port, and the limiting plate I is provided with an obstacle opening I for the pushing block to pass through.

[0012] In one possible design, a limiting rod is fixedly connected to one end of the limiting plate II. The limiting rod extends into the inside of the conveyor box and contacts the belt surface of the belt conveyor I. Both the limiting plate I and the push block are provided with clearance openings II for the limiting rod to pass through.

[0013] In one possible design, the reflux assembly further includes a cylinder II fixed to the base, the output end of the cylinder II being connected to a rejection block that can pass through the reflux port, a high-resolution industrial camera that cooperates with the cylinder II being disposed on the top of the conveyor box above the reflux port, and an obstacle clearance III being provided on the limiting plate I for the rejection block to pass through.

[0014] In one possible design, the return box is tilted and its outlet extends above the opening of the vibrating feeder.

[0015] In one possible design, the drive assembly includes two connecting plates, two threaded rods, and a mounting plate. One connecting plate is fixed to the connecting rod of limiting plate I, and the other connecting plate is fixed to the connecting rod of limiting plate II. One threaded rod is threaded through the corresponding connecting plate and rotatably connected to the mounting plate, and the other threaded rod is threaded through the corresponding connecting plate and rotatably connected to the magnetized guide rail.

[0016] In one possible design, a transmission box is fixed on the base, and two transmission rods are rotatably arranged inside the transmission box. Each of the two transmission rods is fitted with a meshing bevel gear I, and a bevel gear II is fitted at one end of each of the two transmission rods. One end of each of the two threaded rods extends into the transmission box and is fitted with a bevel gear III that meshes with the bevel gear II. A motor is fixed on one side of the transmission box, and the output end of the motor is connected to a transmission rod.

[0017] In one possible design, the magnetizing box is equipped with a magnetizing coil assembly, a magnetic yoke, and a heat-insulating protective layer. The magnetic field channel formed by the magnetizing coil assembly is aligned with the inner channel of the magnetizing guide rail.

[0018] In this application, firstly, the vibrating feeder conveys the magnets to be magnetized to the belt conveyor I inside the conveyor box. The belt conveyor I drives the magnets to move towards the magnetization guide rail, realizing the initial orderly conveying of the magnets and laying the foundation for a stable magnetization process. During this process, a high-resolution industrial camera on the top of the conveyor box detects the magnet posture. If a magnet with an incorrect posture is detected, the cylinder II will drive the rejection block through the return port and push the magnet with the incorrect posture into the return box. The return box then sends it back to the vibrating feeder to rearrange it. This can remove magnets with incorrect posture in a timely manner, avoid affecting the subsequent magnetization quality, and reduce material waste.

[0019] When a magnet with the correct orientation moves to the push port, the photoelectric sensor on the top of the conveyor box detects the magnet. Then, cylinder I drives the push block through the push port and pushes the magnet into the channel of the magnetization guide rail. This achieves precise pushing of the magnet, ensures the accurate positioning of the magnet in the magnetization guide rail, and improves magnetization efficiency. As the number of magnets to be magnetized in the magnetization guide rail continues to increase, the magnets to be magnetized in front are pushed by the subsequent magnets to the magnetization area of ​​the magnetization box to complete the magnetization operation, achieving continuous magnetization of the magnets and ensuring the continuity and efficiency of production.

[0020] When it is necessary to adapt to magnets of various sizes, the motor is started. The motor drives the transmission rod in the transmission box to rotate. The transmission rod drives the two threaded rods to rotate through the meshing of bevel gear I, bevel gear II and bevel gear III. The two threaded rods drive the corresponding connecting plates to move. The two connecting plates drive the corresponding limit plates I and limit plates II to adjust their width synchronously through the connecting rods to adapt to magnets of different sizes. This simplifies the adjustment operation and significantly improves the device's adaptability to magnets of various sizes.

[0021] Beneficial effects: In this utility model, the automatic encoder magnetizing device for arc-shaped magnets, by setting cylinder I and push block on one side of the conveying box, and cooperating with photoelectric sensor above the push port, when the sensor detects that the magnet to be magnetized is in place, cylinder I drives the push block to push it into the channel of the magnetizing guide rail, avoiding magnet conveying deviation, ensuring that it accurately enters the magnetizing guide rail, laying the foundation for a stable magnetizing process, effectively improving the magnet positioning accuracy before magnetizing, reducing magnetizing failures caused by positioning deviation, and improving the overall magnetizing efficiency;

[0022] In this utility model, the automatic encoder magnetization device for arc-shaped magnets has a return box on one side of the conveyor box, and is equipped with cylinder II, rejection block and high-resolution industrial camera above the return port. The industrial camera can identify the magnet posture. When an incorrect posture is detected, cylinder II drives rejection block to push the magnet through the return port to the return box, and then sends it back to the vibrating feeder for rearrangement. This can promptly handle magnets with incorrect postures, eliminate the need for manual sorting, reduce labor costs, avoid affecting the magnetization quality, reduce material waste, and ensure consistent magnet performance after magnetization.

[0023] In this invention, the automatic encoder magnetizing device for arc-shaped magnets utilizes a drive assembly consisting of a motor, a transmission box, a threaded rod, and a connecting plate. The motor drives the transmission rod to rotate, which in turn rotates the threaded rod via a bevel gear, causing the connecting plate to move the connecting rod, thus achieving synchronous width adjustment of limit plates I and II. This synchronous adjustment mechanism can quickly adapt to magnets of various specifications without requiring separate adjustments to the limit structures of the conveyor box and the magnetizing guide rail. This simplifies operation, saves adjustment time, improves the device's adaptability to arc-shaped magnets of different sizes, and enhances the device's practicality and applicability.

[0024] In this invention, the combination of cylinder I, push block, and photoelectric sensor prevents magnet conveying deviation, ensuring accurate entry into the magnetization guide rail, effectively improving magnet positioning accuracy before magnetization, reducing magnetization failures, and increasing magnetization efficiency. With the help of a return box, cylinder II, rejection block, and industrial camera, magnets with incorrect postures can be processed promptly, eliminating the need for manual sorting, reducing costs, avoiding impact on magnetization quality, reducing waste, and ensuring consistent magnet performance. The drive assembly enables synchronous width adjustment of the limit plate, allowing for rapid adaptation to various magnet specifications, simplifying operation, saving time, improving device adaptability, and enhancing the device's practicality and applicability. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural schematic diagram of an automatic encoder magnetization device for arc-shaped magnets proposed in this utility model;

[0026] Figure 2 This is a three-dimensional structural diagram of the conveyor box of the automatic encoder magnetization device for arc-shaped magnets proposed in this utility model.

[0027] Figure 3 This is a three-dimensional structural diagram of the magnetizing guide rail of the automatic encoder magnetizing device for arc-shaped magnets proposed in this utility model.

[0028] Figure 4 This is a partial exploded three-dimensional structural diagram of an automatic encoder magnetizing device for arc-shaped magnets proposed in this utility model.

[0029] In the diagram: 1. Base; 2. Magnetizing guide rail; 3. Magnetizing box; 4. Vibrating feeder; 5. Conveyor box; 501. Push port; 502. Return port; 6. Belt conveyor I; 7. Cylinder I; 8. Push block; 9. Photoelectric sensor; 10. Cylinder II; 11. Rejection block; 12. High-resolution industrial camera; 13. Return box; 14. Belt conveyor II; 15. Limiting plate I; 16. Limiting plate II; 1601. Limiting rod; 17. Connecting rod; 18. Connecting plate; 19. Threaded rod; 20. Transmission box; 21. Transmission rod; 22. Bevel gear I; 23. Bevel gear II; 24. Bevel gear III; 25. Mounting plate; 26. Motor. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] In one embodiment: Refer to Figure 1-4 A magnetization device includes a base 1 and a vibrating feeder 4. A magnetization guide rail 2 is fixedly mounted on the top of the base 1, and a magnetization box 3 is also fixedly mounted on the top of the base 1. The magnetization guide rail 2 passes through the magnetization area of ​​the magnetization box 3. Inside the magnetization box 3, a magnetization coil assembly, a magnetic yoke, and a heat-insulating protective layer are fixedly mounted. The magnetization coil assembly is a multi-turn copper winding structure wound on an insulating frame. The magnetic field channel formed by the coil assembly is aligned with the inner channel of the magnetization guide rail 2, ensuring that the magnet to be magnetized can smoothly pass through the magnetic field channel along the magnetization guide rail 2. The magnet to be magnetized can move along the channel of the magnetization guide rail 2. When the magnet enters the magnetization area of ​​the magnetization box 3, the magnetization operation is completed. The magnetization guide rail 2 provides a stable path for the transport and magnetization of the magnet, ensuring the orderly progress of the magnetization process.

[0032] A conveyor box 5 is fixedly installed on the top of the base 1. One end of the magnetizing guide rail 2 is perpendicular to the conveyor box 5. The discharge port of the vibrating feeder 4 is connected to the inlet of the conveyor box 5. A push port 501 is opened on the side of the conveyor box 5 near the magnetizing guide rail 2, and the channel inside the magnetizing guide rail 2 is connected to the push port 501. A belt conveyor I6 is installed inside the conveyor box 5, and the push port 501 is located above the belt conveyor I6. After the vibrating feeder 4 conveys the magnets to be magnetized onto the belt conveyor I6 inside the conveyor box 5, the belt conveyor I6 can drive the magnets to move towards the magnetizing guide rail 2, laying the foundation for the initial orderly conveying of the magnets for subsequent processing. The push port 501 provides a channel for the magnets to enter the magnetizing guide rail 2 from the conveyor box 5.

[0033] The base 1 is equipped with a pushing assembly that pushes the magnets to be magnetized in the delivery box 5 into the channel inside the magnetization guide rail 2. The pushing assembly includes a cylinder I7 fixedly mounted on the top of the base 1. The cylinder I7 is located on one side of the delivery box 5. The output end of the cylinder I7 is fixedly connected to a pushing block 8 that can pass through the pushing port 501. The top of the delivery box 5 is located above the pushing port 501 and is fixedly mounted with a photoelectric sensor 9 that cooperates with the cylinder I7 via a fixing bracket. The limiting plate I15 has an avoidance opening I that matches the pushing block 8. When the correctly positioned magnet moves to the push port 501, the photoelectric sensor 9 can detect the magnet. Then, the cylinder I7 drives the push block 8 through the push port 501, pushing the magnet into the channel of the magnetization guide rail 2. This process can avoid magnet transport deviation and ensure that the magnet accurately enters the magnetization guide rail 2, laying the foundation for stable magnetization. It effectively improves the magnet positioning accuracy before magnetization, reduces magnetization failure caused by positioning deviation, and improves the overall magnetization efficiency. The clearance port I can prevent the limit plate I15 from obstructing the movement of the push block 8 and ensure smooth pushing action.

[0034] The base 1 is equipped with a return assembly that returns incorrectly oriented magnets to the vibrating feed tray 4 for rearrangement. The return assembly includes a return box 13 fixedly mounted on the top of the base 1, located on one side of the conveyor box 5. A belt conveyor II 14 is installed inside the return box 13. Both the conveyor box 5 and the return box 13 have return ports 502 on their adjacent sides, and the two return ports 502 are connected. The return assembly also includes a cylinder II 10 fixedly mounted on the top of the base 1. The output end of the cylinder II 10 is fixedly connected to a rejection block 11 that can pass through the return port 502. A high-resolution industrial camera 12, which works in conjunction with the cylinder II 10, is fixedly mounted on the top of the conveyor box 5 above the return port 502. A clearance opening III, matching the rejection block 11, is provided on the limiting plate I 15. During the movement of the magnets driven by the belt conveyor I6, the high-resolution industrial camera 12 can detect the magnet's posture. If a magnet with an incorrect posture is detected, the cylinder II10 will drive the rejection block 11 through the return port 502 to push the magnet with the incorrect posture into the return box 13. The belt conveyor II14 in the return box 13 will then transport it to the vibrating feeder 4 for rearrangement. No manual sorting is required, reducing labor costs. It can promptly handle magnets with incorrect postures, avoid affecting the subsequent magnetization quality, reduce material waste, and ensure consistent magnet performance after magnetization. The clearance port III can prevent the limit plate I15 from blocking the movement of the rejection block 11, ensuring that the magnet with the incorrect posture is smoothly pushed into the return box 13.

[0035] The return box 13 is tilted, and one of its outlets extends above the opening of the vibrating feeder 4. The tilted design allows gravity to assist the movement of the magnets in the wrong orientation. Combined with the conveying action of the belt conveyor II 14, this ensures that the magnets can smoothly fall from the outlet of the return box 13 into the vibrating feeder 4, achieving efficient return of the wrong magnets.

[0036] Inside the conveyor box 5, above the belt conveyor I6 and inside the magnetizing guide rail 2, are respectively installed limiting plates I15 and II16 for width adjustment. Two connecting rods 17 are symmetrically fixed on one side of each limiting plate I15 and II16. The two connecting rods 17 on limiting plate I15 slide through the conveyor box 5, and the two connecting rods 17 on limiting plate II16 slide through the magnetizing guide rail 2. A drive assembly for synchronously driving limiting plates I15 and II16 is installed on the top of the base 1. Limiting plate I15 can limit the width of the magnets on the belt conveyor I6 inside the conveyor box 5, preventing the magnets from shifting during transport. Limiting plate II16 can limit the width of the magnets in the magnetizing guide rail 2 channel, ensuring stable movement of the magnets within the magnetizing guide rail 2. The positions of limiting plates I15 and II16 can be synchronously adjusted via the drive assembly to accommodate magnets of various specifications.

[0037] One end of the limiting plate II 16 is fixedly connected to a limiting rod 1601. The limiting rod 1601 extends into the interior of the conveyor box 5 and contacts the belt surface of the belt conveyor I 6. Both the limiting plate I 15 and the push block 8 have clearance openings II that match the limiting rod 1601. The limiting rod 1601 can further limit the magnets in the conveyor box 5, preventing the magnets from flipping or shifting on the belt conveyor I 6 and improving the stability of magnet conveying. The clearance openings II provide installation and movement space for the limiting rod 1601, avoiding interference with the limiting plate I 15 and the push block 8.

[0038] This application can be used in the field of magnetization technology, or in other fields applicable to this application.

[0039] In another embodiment: Reference Figure 2-4An improvement based on Embodiment 1: An arc-shaped magnet automatic encoder magnetization device, which is applied to the field of magnet magnetization technology, includes two connecting plates 18, two threaded rods 19, and a mounting plate 25 fixedly installed on the top of the base 1. One connecting plate 18 is fixedly connected to two connecting rods 17 located on the limiting plate I 15, and the other connecting plate 18 is fixedly connected to two connecting rods 17 located on the limiting plate II 16. One threaded rod 19 is threaded through the corresponding connecting plate 18 and rotatably connected to one side of the mounting plate 25, and the other threaded rod 19 is threaded through the corresponding connecting plate 18 and rotatably connected to one side of the magnetization guide rail 2. A transmission box 20 is fixedly installed on the top of the base 1. Two transmission rods 21 are rotatably installed inside the transmission box 20, and bevel gears I 22 are fixedly sleeved on both transmission rods 21. The two bevel gears I 22 are meshed and connected. One end of each of the two transmission rods 21 is fixedly sleeved with bevel gears II 23. One end of each of the two threaded rods 19 extends into the interior of the transmission box 20 and is fixedly sleeved with bevel gears III 24. The two bevel gears II 23 are meshed and connected with the two bevel gears III 24 respectively. A motor 26 is fixedly installed on one side of the transmission box 20. The output end of the motor 26 is fixedly connected to one of the transmission rods 21. When adapting to magnets of various sizes, the motor 26 is started. The motor 26 drives the connected transmission rod 21 to rotate, which in turn drives another transmission rod 21 to rotate synchronously through two meshing bevel gears I 22. The two transmission rods 21 are respectively driven by bevel gears II 23 and corresponding bevel gears III 24, which drive two threaded rods 19 to rotate. The rotation of the threaded rods 19 drives the corresponding connecting plate 18 to move. The connecting plate 18 drives the limiting plate I 15 and the limiting plate II 16 to adjust their width synchronously through the connecting rod 17. This synchronous adjustment process eliminates the need to adjust the limiting structures of the conveyor box 5 and the magnetizing guide rail 2 separately, simplifying the operation steps, saving adjustment time, improving the device's adaptability to arc magnets of different sizes, and enhancing the device's practicality and applicability.

[0040] However, as is well known to those skilled in the art, the working principle and wiring method of motor 26 are conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0041] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic encoder magnetizing device for arc-shaped magnets, comprising a base (1) and a vibrating feeder (4), characterized in that, The top of the base (1) is fixedly provided with a magnetizing guide rail (2) and a magnetizing box (3), and the magnetizing guide rail (2) passes through the magnetizing area of ​​the magnetizing box (3); The top of the base (1) is also fixedly provided with a conveyor box (5). One end of the magnetizing guide rail (2) is perpendicular to the conveyor box (5). The conveyor box (5) has a push port (501) on the side near the magnetizing guide rail (2). The channel in the magnetizing guide rail (2) is connected to the push port (501). The conveyor box (5) is provided with a belt conveyor I (6). The push port (501) is located above the belt conveyor I (6). The base (1) is provided with a pushing component for pushing the magnet in the delivery box (5) to the magnetizing guide rail (2); The base (1) is also provided with a return assembly for returning the magnet with incorrect posture to the vibrating feeder (4). The return assembly includes a return box (13). A belt conveyor II (14) is provided inside the return box (13). The conveyor box (5) and the return box (13) are provided with a connected return port (502) on adjacent sides. Limiting plate I (15) and limiting plate II (16) are respectively provided in the conveying box (5) and the magnetizing guide rail (2). The limiting plate I (15) and the limiting plate II (16) are slidably connected by a connecting rod (17). A driving assembly for synchronously driving the two limiting plates is provided on the base (1).

2. The automatic encoder magnetizing device for arc-shaped magnets according to claim 1, characterized in that, The pushing assembly includes a cylinder I (7) fixed on the base (1), the output end of the cylinder I (7) is connected to a pushing block (8) that can pass through the pushing port (501), the top of the conveying box (5) is provided with a photoelectric sensor (9) that cooperates with the cylinder I (7) above the pushing port (501), and the limiting plate I (15) is provided with an obstacle passage I for the pushing block (8) to pass through.

3. The automatic encoder magnetizing device for arc-shaped magnets according to claim 1, characterized in that, One end of the limiting plate II (16) is fixedly connected to a limiting rod (1601), the limiting rod (1601) extends into the inside of the conveyor box (5) and contacts the belt surface of the belt conveyor I (6), and both the limiting plate I (15) and the push block (8) are provided with a clearance opening II for the limiting rod (1601) to pass through.

4. The automatic encoder magnetizing device for arc-shaped magnets according to claim 1, characterized in that, The reflux assembly also includes a cylinder II (10) fixed on the base (1). The output end of the cylinder II (10) is connected to a rejection block (11) that can pass through the reflux port (502). The top of the conveying box (5) is provided with a high-resolution industrial camera (12) that cooperates with the cylinder II (10) above the reflux port (502). The limiting plate I (15) has an obstacle clearance III for the rejection block (11) to pass through.

5. The automatic encoder magnetizing device for arc-shaped magnets according to claim 4, characterized in that, The return box (13) is inclined and its outlet extends above the opening of the vibrating feeder (4).

6. The automatic encoder magnetizing device for arc-shaped magnets according to claim 1, characterized in that, The drive assembly includes two connecting plates (18), two threaded rods (19), and a mounting plate (25). One connecting plate (18) is fixed to the connecting rod (17) of the limiting plate I (15), and the other connecting plate (18) is fixed to the connecting rod (17) of the limiting plate II (16). One threaded rod (19) is threaded through the corresponding connecting plate (18) and rotatably connected to the mounting plate (25). The other threaded rod (19) is threaded through the corresponding connecting plate (18) and rotatably connected to the magnetized guide rail (2).

7. The automatic encoder magnetizing device for arc-shaped magnets according to claim 6, characterized in that, A transmission box (20) is fixed on the base (1). Two transmission rods (21) are rotatably arranged inside the transmission box (20). Each of the two transmission rods (21) is fitted with a bevel gear I (22) that meshes with each other. One end of each of the two transmission rods (21) is fitted with a bevel gear II (23). One end of each of the two threaded rods (19) extends into the transmission box (20) and is fitted with a bevel gear III (24) that meshes with the bevel gear II (23). A motor (26) is fixed on one side of the transmission box (20). The output end of the motor (26) is connected to one of the transmission rods (21).

8. The automatic encoder magnetizing device for arc-shaped magnets according to claim 1, characterized in that, The magnetizing box (3) is equipped with a magnetizing coil group, a magnetic yoke and a heat insulation layer. The magnetic field channel formed by the magnetizing coil group is aligned with the inner channel of the magnetizing guide rail (2).

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