Micro neodymium-iron-boron magnet chamfering device

Abstract

The utility model discloses a miniature neodymium iron boron magnet chamfering device which comprises a cylinder body and a sealing cover, the cylinder body is a polygonal cylindrical cylinder body, one end of the cylinder body is a closed end, the other end of the cylinder body is provided with an opening for placing a magnet and grinding sand, and the sealing cover covers the opening in a sealing mode. And the barrel rotates around the axis of the barrel to drive the grinding sand in the barrel to chamfer the magnet. According to the utility model, the cylinder body adopts the polygonal cylindrical cylinder body, after the magnet and the grinding sand are placed in the cylinder body, the polygonal cylindrical cylinder body rotates around the axis, so that the grinding sand in the cylinder body can fully grind and chamfer the magnet, the sealing design of the cylinder body can effectively prevent the magnet from being lost during chamfering, the structure is simple, and the practicability is high. And the production efficiency and quality can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of chamfering device technology, and in particular to a miniature neodymium iron boron chamfering device. Background Technology

[0002] For neodymium iron boron magnets, chamfering before electroplating is crucial. However, with increasingly diverse and sophisticated customer demands, especially for products with dimensions smaller than 1mm and a weight not exceeding 100 grams in the early sample stage, chamfering faces higher requirements. Traditional chamfering equipment is ill-suited for this type of precision machining, easily leading to product loss or over-chamfering and scrapping, thus reducing production efficiency. If chamfering is omitted and electroplating is performed directly, defects such as line marks and burrs are easily generated on the product surface, seriously affecting product quality. Utility Model Content

[0003] The purpose of this invention is to provide a miniature neodymium iron boron magnet chamfering device, which can chamfer small magnets, thereby improving production efficiency and quality.

[0004] To achieve the above objectives, the solution of this utility model is as follows: a miniature neodymium iron boron magnet chamfering device, comprising a cylindrical body and a sealing cap. The cylindrical body is a polygonal cylindrical body with one end being a closed end and the other end having an opening for inserting magnets and abrasive sand. The sealing cap is located at the opening. The cylindrical body rotates around its axis to drive the abrasive sand inside the cylinder to chamfer the magnets.

[0005] In a preferred embodiment, a locking component is also included, which is disposed at the other end of the cylinder and is used to lock the sealing cap.

[0006] In a preferred embodiment, the locking assembly includes a cam handle, a rotating shaft, and a limiting post. The limiting post is symmetrically arranged at the other end of the cylinder, and limiting holes are opened on the limiting post. The two ends of the rotating shaft are rotatably arranged in the limiting holes. The cam handle is fixedly arranged on the rotating shaft. The cam handle has a hand drive end and a cam end. When the hand drive end rotates, it drives the cam end to abut against the sealing cover.

[0007] In a preferred embodiment, the cylinder is a hexagonal columnar cylinder.

[0008] In a preferred embodiment, the opening at the other end of the cylinder is a circular opening, and the sealing cap is circular in shape.

[0009] In a preferred embodiment, the sealing cover is provided with a sealing gasket.

[0010] In a preferred embodiment, a transmission device is also included, wherein both ends of the cylinder are provided with a wheel, and the cylinder is placed on the transmission device via the wheel. When the transmission device rotates, it drives the cylinder to rotate around the cylinder axis via the wheel.

[0011] In a preferred embodiment, the transmission device includes a transmission motor, transmission wheels, and a transmission belt. Two sets of transmission wheels are respectively provided on the left and right sides of the transmission motor. The output shaft of the transmission motor is connected to one of the transmission wheels in each set of transmission wheels through the transmission belt to drive the transmission wheels to rotate. The disc of the cylinder abuts against the transmission wheels.

[0012] In the preferred embodiment, each set of transmission wheels consists of two wheels.

[0013] In a preferred embodiment, the cylinder is made of polyester resin material.

[0014] The beneficial effects of this utility model after adopting the above solution are as follows: The cylinder of this utility model adopts a polygonal columnar cylinder. When the magnet and grinding sand are placed into the cylinder, the polygonal columnar cylinder rotates around the axis, so that the grinding sand in the cylinder can fully grind and chamfer the magnet. In addition, the sealing design of the cylinder can effectively prevent the magnet from being lost during chamfering. The structure is simple and can effectively improve production efficiency and quality. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the present invention with the cam handle, rotating shaft and sealing cover removed;

[0017] Figure 3 This is a schematic diagram showing the cam handle of the locking assembly of this utility model rotating to abut against the sealing cover;

[0018] Figure 4 This is a schematic diagram showing the cam handle of the locking assembly of this utility model rotated away from the sealing cover;

[0019] Figure 5 This is a schematic diagram of the cylindrical body of this utility model placed on the transmission device;

[0020] Figure 6 This is a right view of the cylinder of this utility model placed on the transmission device.

[0021] Label Explanation:

[0022] 1. Cylinder body; 10. Opening; 2. Sealing cover; 3. Locking assembly; 30. Cam handle; 300. Hand drive end; 301. Cam end; 31. Rotating shaft; 32. Limiting post; 4. Wheel; 5. Transmission device; 50. Transmission motor; 51. Transmission wheel; 52. Transmission belt; 53. Output shaft. Detailed Implementation

[0023] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0024] This embodiment provides a miniature neodymium iron boron magnet chamfering device, such as Figures 1 to 4 As shown, it includes a cylindrical body 1 and a sealing cap 2. The cylindrical body 1 is a polygonal cylindrical body 1 with one end closed and the other end of the cylindrical body 1 having an opening 10 for inserting a magnet and abrasive sand. The sealing cap 2 is located at the opening 10. The cylindrical body 1 rotates around its axis to drive the abrasive sand inside the cylindrical body 1 to chamfer the magnet.

[0025] In this embodiment, the cylinder 1 is a polygonal cylindrical cylinder. When the cylinder 1 rotates around its axis, the multiple side walls of the cylinder 1 can fully drive the grinding sand inside the cylinder 1 to perform uniform and efficient chamfering on the magnet, which can effectively improve the chamfering effect and thus improve production quality. Moreover, since the cylinder 1 adopts a sealed structure, the magnet will not be lost during the chamfering process. The structure is simple, which can further improve production efficiency and reduce production costs.

[0026] like Figure 1 , Figure 3 and Figure 4 As shown, it also includes a locking assembly 3, which is disposed at the other end of the cylinder 1 and is used to lock the sealing cap 2. In this embodiment, the locking assembly 3 ensures a tight fit between the sealing cap 2 and the cylinder 1, effectively preventing abrasive sand or magnets from leaking out of the cylinder 1 during the chamfering process. The good sealing performance also prevents external impurities from entering the cylinder 1, ensuring the cleanliness of the chamfering process and the quality of the product.

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, the locking assembly 3 includes a cam handle 30, a rotating shaft 31, and a limiting post 32. The limiting post 32 is symmetrically arranged at the other end of the cylinder 1, and the limiting post 32 has limiting holes. The two ends of the rotating shaft 31 are rotatably arranged in the limiting holes. The cam handle 30 is fixedly arranged on the rotating shaft 31. The cam handle 30 has a hand drive end 300 and a cam end 301. When the hand drive end 300 rotates, it drives the cam end 301 to abut against the sealing cover 2.

[0028] In this embodiment, when the hand-drive end 300 of the cam handle 30 is rotated, the cam end 301 of the cam handle 30 rotates and abuts against the cover via the rotating shaft 31, thereby locking the sealing cover 2. Unlocking is achieved simply by rotating the hand-drive end 300 of the cam handle 30 in the opposite direction. This simple operation prevents the sealing cover 2 from accidentally opening during the rotation of the cylinder 1, thus avoiding safety hazards such as abrasive sand splashing or magnet ejection. It also helps maintain the uniform effect of the abrasive sand on the magnet, improving the accuracy and consistency of the chamfering.

[0029] like Figure 1 and Figure 2As shown, the cylinder 1 in this embodiment is a hexagonal columnar cylinder 1, but it is not limited to this. In other embodiments, the number of sides of the cylinder 1 can also be adjusted. When the magnet and the abrasive are placed inside the cylinder 1, the hexagonal columnar cylinder 1 allows for more thorough and uniform contact between the abrasive and the magnet, which is beneficial for improving the chamfering effect of the magnet.

[0030] like Figure 2 As shown, in this embodiment, the opening 10 at the other end of the cylinder 1 is a circular opening 10, but it is not limited to this. Correspondingly, the sealing cover 2 is circular in shape. The cooperation between the circular opening 10 and the circular sealing cover 2 can ensure a better sealing effect. Moreover, the circular design simplifies the processing and manufacturing process and helps to reduce production costs.

[0031] Furthermore, a sealing gasket is provided on the sealing cap 2. In this embodiment, the sealing gasket can fill the tiny gap between the sealing cap 2 and the opening 10 of the cylinder 1, allowing the sealing cap 2 to fit evenly against the opening 10 of the cylinder 1, reducing the possibility of leakage from the magnet or abrasive. In addition, due to the sealing gasket, water can be added inside the cylinder 1 for water chamfering, resulting in a simple structure and ingenious design.

[0032] like Figure 5 and Figure 6 As shown, the system also includes a transmission device 5. Both ends of the cylinder 1 are equipped with discs 4. The cylinder 1 is placed on the transmission device 5 via the discs 4. When the transmission device 5 rotates, it drives the cylinder 1 to rotate around its axis via the discs 4. In this embodiment, the transmission device 5 can stably and continuously drive the cylinder 1 to rotate, thereby achieving continuous and uniform chamfering of the magnet by the abrasive, which is beneficial for improving the product quality of the magnet. Since the cylinder 1 in this embodiment is a polygonal cylindrical cylinder 1, both ends of the cylinder 1 are equipped with discs 4 that cooperate with the transmission device 5 to ensure that the cylinder 1 can rotate smoothly around its axis, resulting in a simple structure.

[0033] like Figure 5 and Figure 6 As shown, the transmission device 5 includes a transmission motor 50, a transmission wheel 51, and a transmission belt 52. Two sets of transmission wheels 51 are respectively provided on the left and right sides of the transmission motor 50. The output shaft 53 of the transmission motor 50 is connected to one of the transmission wheels 51 in each set of transmission wheels 51 through the transmission belt 52, which is used to drive the transmission wheel 51 to rotate. The wheel 4 of the cylinder 1 abuts against the transmission wheel 51.

[0034] The drive motor 50 in this embodiment can provide a stable and controllable speed. The operator can set the speed and chamfering time of the drive motor 50, which is convenient to use. Furthermore, the output shaft 53 of the drive motor 50 is connected to one of the drive wheels 51 in each group of drive wheels 51 via a drive belt 52. The drive wheel 51 acts as the driving wheel, and the other drive wheel 51 acts as the driven wheel. The structure is simple and also facilitates later maintenance.

[0035] like Figure 5 and Figure 6 As shown, in this embodiment, each group of transmission wheels 51 has two wheels, but it is not limited to this. Two transmission wheels 51 are respectively set on the left and right sides of the transmission motor 50, which can provide more stable support and transmission effect. In other embodiments, the number of transmission wheels 51 can also be adjusted according to actual needs.

[0036] Furthermore, in this example, the cylinder 1 is made of polyester resin material, which has the characteristics of being lightweight and having high strength. This allows the cylinder 1 to reduce its overall weight while ensuring sufficient strength. In addition, polyester resin material has good wear resistance and corrosion resistance, which can resist the wear of the cylinder 1 by abrasives such as grinding sand, and helps to extend the service life of the cylinder 1. Other materials may also be used in other embodiments.

[0037] The usage process of this utility model is as follows:

[0038] After the operator removes the sealing cap 2 and places the magnet and abrasive into the cylinder 1, the operator rotates the hand drive end 300 of the cam handle 30 so that the cam end 301 of the cam handle 30 rotates through the rotating shaft 31 and abuts against the sealing cap to lock it. The cylinder 1 is then placed on the transmission wheel 51 of the transmission device 5 through the wheel 4.

[0039] Turn on the switch of the transmission device 5, set the speed and chamfering time of the transmission motor 50, and the output shaft 53 of the transmission motor 50 drives the transmission wheel 51 to rotate through the transmission belt 52, so that the transmission wheel 51 drives the cylinder 1 to rotate around the axis of the cylinder 1 through the wheel disk 4 to perform chamfering.

[0040] After the chamfering is completed, the operator rotates the hand drive end 300 of the cam handle 30 in the opposite direction, so that the cam end 301 of the cam handle 30 moves away from the sealing cover 2, removes the sealing cover 2, and then pours out the chamfered magnet and abrasive from the opening 10 at the other end of the cylinder 1, thus completing the entire chamfering process.

[0041] The directional terms used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0042] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A miniature neodymium iron boron magnet chamfering device, characterized in that: The application relates to a magnetic chamfering device, which comprises a cylinder and a sealing cover, the cylinder is a polygonal columnar cylinder, one end of the cylinder is a closed end, an opening for placing a magnet and grinding sand is arranged at the other end of the cylinder, the sealing cover is arranged at the opening, and the cylinder rotates around the cylinder axis to drive the grinding sand in the cylinder to chamfer the magnet. The application further relates to a locking assembly arranged at the other end of the cylinder for locking the sealing cover. The locking assembly comprises a cam handle, a rotating shaft and a limiting column, the limiting column is symmetrically arranged at the other end of the cylinder, the limiting column oppositely has a limiting hole, the rotating shaft is rotatably arranged at the limiting hole, the cam handle is fixedly arranged on the rotating shaft, the cam handle has a hand driving end and a cam end, and the hand driving end drives the cam end to abut against the sealing cover when rotating.

2. A micro Nd-Fe-B magnet chamfering device according to claim 1, characterized in that: The cylinder is a hexagonal columnar cylinder.

3. A micro Nd-Fe-B magnet chamfering device according to claim 1, characterized in that: The opening at the other end of the cylinder is a circular opening, and the sealing cover is circular.

4. A micro Nd-Fe-B magnet chamfering device according to claim 1, characterized in that: A sealing washer is arranged on the sealing cover.

5. A micro Nd-Fe-B magnet chamfering device according to claim 1, characterized in that: The application further relates to a transmission device, the cylinder has a wheel disc at each end, the cylinder is placed on the transmission device through the wheel disc, and the transmission device drives the cylinder to rotate around the cylinder axis through the wheel disc.

6. A micro Nd-Fe-B magnet chamfering device according to claim 5, characterized in that: The transmission device comprises a transmission motor, transmission wheels and a transmission belt, the transmission motor is provided with two groups of transmission wheels on the left and right sides, respectively, the output shaft of the transmission motor is connected with one transmission wheel of each group of transmission wheels through the transmission belt, respectively, for driving the transmission wheel to rotate, and the wheel disc of the cylinder abuts against the transmission wheel.

7. A micro Nd-Fe-B magnet chamfering device according to claim 6, characterized in that: The number of transmission wheels in each group is two.

8. A micro Nd-Fe-B magnet chamfering device according to claim 1, characterized in that: The cylinder is made of polyester resin material.

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