NdFeB magnet vibration chamfering device

Abstract

The utility model belongs to the technical field of vibration chamfering instruments, and particularly relates to a neodymium-iron-boron magnet vibration chamfering device which comprises a base and a material storage shell movably arranged above the base, a plurality of springs are jointly connected between the bottom of the material storage shell and the upper surface of the base, a supporting shell is arranged in the material storage shell, and the supporting shell is fixedly connected with the base. A vibration exciter is arranged in the supporting shell, the inner wall of the material storage shell and the peripheral side surface of the supporting shell jointly form a storage cavity, a screening assembly is arranged in the storage cavity and comprises a plurality of lead screws and a movable cylinder, one end of each lead screw is connected with a driving assembly, a filter screen is fixed to the peripheral side surface of the movable cylinder, and the driving assembly is connected with a driving assembly. The surface of the outer ring of the filter screen is in sliding connection with the inner wall of the storage shell, and the hole diameter of the filter screen is larger than the maximum diameter of the abrasive and smaller than the minimum diameter of the neodymium-iron-boron magnet. By means of the technical scheme, the problems that after the neodymium-iron-boron magnet is polished at present, operation is tedious and efficiency is low when the neodymium-iron-boron magnet and the abrasive are separated can be effectively solved.

Description

Technical Field

[0001] This utility model belongs to the field of vibration chamfering equipment technology, specifically relating to a neodymium iron boron magnet vibration chamfering device. Background Technology

[0002] In the production process of NdFeB magnets, the magnets typically undergo machining (such as cutting, grinding, and drilling) to form a specified shape and size. The edges of the machined magnets are often sharp, sometimes with tiny burrs. This not only easily damages subsequent processing equipment but also affects electroplating quality, and can even lead to cracks or peeling during use. To address these issues, magnets are usually chamfered using a vibratory chamfering machine before electroplating. For example, a Chinese patent discloses a centrifugal vibrating machine for polishing and removing impurities from magnets (patent publication number: CN208496700U). This machine uses centrifugal vibration to drop the shaped magnets into a tray, where they are simultaneously vibrated and polished in a ring-shaped oscillating disc. This ensures that no excess magnetic powder or burrs remain on the magnet while it is in the tray, saving manpower and resources, reducing production costs, and preventing magnet breakage and unnecessary losses under uniform force.

[0003] Although the above technical solutions can effectively polish magnets, in actual processing, after the NdFeB magnets are polished, the abrasive needs to be separated from the NdFeB magnets. Currently, the separation method is generally to take out the NdFeB magnets and abrasives together and put them into a special screening device for separation, or to separate them manually. The operation is cumbersome, time-consuming and labor-intensive, which greatly reduces the processing efficiency of NdFeB magnets. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a vibratory chamfering device for neodymium iron boron magnets, which solves the problem of cumbersome operation and low efficiency when separating neodymium iron boron magnets and abrasives after the current neodymium iron boron magnets have been polished.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A vibratory chamfering device for neodymium iron boron magnets includes a base and a storage shell disposed above it. Multiple vertically arranged springs are connected between the bottom of the storage shell and the upper surface of the base, and all springs are arranged in a circular array on a horizontal plane. A vertically arranged support shell is coaxially disposed inside the storage shell, and a vibrator is disposed within the support shell. The inner wall of the storage shell and the peripheral surface of the support shell are spaced apart and together form a storage chamber for storing abrasive materials and neodymium iron boron magnets. A screening assembly that moves vertically is disposed within the storage chamber. The screening assembly includes a movable cylinder coaxially slidably disposed on the outer surface of the support shell and a filter screen disposed on the peripheral surface of the movable cylinder. The filter screen is annular, and its outer ring is slidably connected to the inner wall of the storage shell. The aperture of the filter screen is larger than the maximum diameter of the abrasive material and smaller than the minimum diameter of the neodymium iron boron magnet.

[0007] Furthermore, the screening assembly also includes multiple lead screws circumferentially arranged on the outer surface of the support housing. Each lead screw is vertically arranged, and one end of each lead screw is rotatably connected to the circumferential surface of the support housing. The other end of each lead screw passes through the bottom of the storage housing and is connected to a drive assembly that drives it to rotate. The drive assembly is fixed to the bottom of the storage housing. The circumferential surface of the movable cylinder is threadedly connected to each lead screw and moves vertically under the drive of the lead screw.

[0008] Furthermore, a plurality of circumferentially evenly spaced first reinforcing blocks are fixedly connected to the outer ring surface of the movable cylinder. Each first reinforcing block is horizontally arranged, and the free end of each first reinforcing block is connected to a movable ring. The movable ring is slidably disposed on the inner wall of the storage shell. All the first reinforcing blocks are fixedly connected to the filter screen.

[0009] Furthermore, a plurality of second reinforcing blocks are fixedly connected to the outer ring surface of the movable cylinder, and the number and position of the second reinforcing blocks correspond one-to-one with the first reinforcing blocks. Each second reinforcing block is located below the filter screen, and the end of the second reinforcing block away from the movable cylinder is fixed to the lower end face of the movable ring.

[0010] Furthermore, the drive assembly includes a motor fixedly mounted on the bottom of the storage housing and a sprocket coaxially and fixed to the outer surface of each lead screw, and the output end of the motor is connected to each sprocket by a chain.

[0011] Furthermore, the top of the storage shell is detachably connected to an annular sealing cover, which covers the top of the storage chamber. The lower end of the sealing cover is provided with sound insulation cotton, and the upper end of the sealing cover is provided with a handle.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention places abrasive and neodymium iron boron magnets in a storage chamber composed of a storage shell and a support shell. A screening component is installed in the storage chamber, which can move up and down along the axis of the support shell under the drive of the drive component. The pores of the filter screen can effectively separate the neodymium iron boron magnets above the filter screen. When the filter screen moves upward and moves in conjunction with the vibrator, it can separate the neodymium iron boron magnets from the abrasive and lift all the neodymium iron boron magnets to a suitable height for easy access by the staff, effectively improving the efficiency of separating neodymium iron boron magnets and abrasive.

[0014] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0015] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0016] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model after the sealing cover is removed;

[0018] Figure 3 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0019] Figure 4 This is a vertical sectional view of the storage shell of this utility model;

[0020] Figure 5 This is a schematic diagram of the filter structure of this utility model.

[0021] The following labels are shown in the attached diagram:

[0022] 1. Base, 2. Storage housing, 3. Support housing, 4. Vibrator, 5. Screening assembly, 501. Lead screw, 502. Guide rod, 503. Movable cylinder, 504. Filter screen, 6. First reinforcing block, 7. Second reinforcing block, 8. Motor, 9. Sprocket, 10. Chain, 11. Sealing cover, 12. Movable ring. Detailed Implementation

[0023] like Figures 1-5 As shown,

[0024] A vibratory chamfering device for neodymium iron boron magnets includes a base 1 and a storage shell 2 movably disposed above the base 1. The storage shell 2 has a barrel-shaped structure. Multiple springs are connected between the bottom of the storage shell 2 and the upper surface of the base 1. Each spring is vertically arranged, and all springs are arranged in a ring with uniform spacing on a horizontal plane. A vertically arranged support shell 3 is coaxially disposed inside the storage shell 2. The support shell 3 is cylindrical and contains a vibrator 4 (existing equipment such as the CSJZ series modal vibrator from Jiangsu Chuansheng Electronics Technology Co., Ltd. can be used). The inner wall of the storage shell 2 and the peripheral surface of the support shell 3 are spaced apart and together form a storage chamber for storing abrasive materials and neodymium iron boron magnets. A screening assembly 5 that moves vertically is disposed within the storage chamber. The screening assembly 5 includes two lead screws 501, two guide rods 502, and a movable cylinder 503 coaxially and slidably disposed on the outer surface of the support shell 3. The lead screw 501 and guide rod 502 are both vertically arranged. One end of each lead screw 501 is rotatably connected to the peripheral surface of the support housing 3, and the other end passes through the bottom of the storage housing 2 and is connected to a drive assembly that drives its rotation. One end of each guide rod 502 is fixed to the peripheral surface of the support housing 3, and the other end is fixedly connected to the inner wall of the storage housing 2. The drive assembly is fixed to the bottom of the storage housing 2. The peripheral surface of the movable cylinder 503 is threadedly connected to each lead screw 501. Driven by the lead screw 501, the cylinder 503 moves vertically, and its peripheral surface is slidably connected to the guide rod 502. A horizontally arranged filter screen 504 is fixedly connected to the peripheral surface of the cylinder 503. The filter screen 504 is annular and covers the annular gap between the storage shell 2 and the support shell 3 on the horizontal plane. The outer ring surface of the filter screen 504 is vertically slidably connected to the inner wall of the storage shell 2. The aperture of the filter screen 504 is larger than the maximum diameter of the abrasive and smaller than the minimum diameter of the neodymium iron boron magnet.

[0025] As shown in the figure, before polishing the NdFeB magnets, the storage chamber is emptied, and the drive assembly is used to move the movable cylinder 503 and the filter screen 504 to the bottom of the storage shell 2. Then, abrasive and the NdFeB magnets to be polished are added into the storage chamber, ensuring that the abrasive covers all the NdFeB magnets. Since the diameter of the NdFeB magnets is larger than the pore size of the filter screen 504, commonly used abrasives include diamond (approximately 180–100 μm grit), silicon carbide (approximately 425–180 μm grit), and alumina (approximately 500–200 μm grit). The diameter of the NdFeB magnet is much larger than that of the abrasive and filter screen (50μm). Therefore, all the NdFeB magnets are placed on top of the filter screen 504. The diameter of the abrasive is smaller than the pore size of the filter screen 504, so during the polishing process, the abrasive penetrates the filter screen 504 and moves back and forth on both sides of the filter screen 504 to polish the NdFeB magnets without affecting the polishing efficiency. When the polishing is complete and the NdFeB magnets need to be removed, the vibrator 4 is activated, simultaneously controlling the drive assembly to rotate each lead screw 501. As the lead screw 501 rotates, it drives the movable cylinder 503 to move vertically upwards via the thread. The two guide rods 502 stabilize the movable cylinder 503. The upward movement of the movable cylinder 503 also drives the filter screen 504 to move together. During this upward movement, the filter screen 504 lifts all the neodymium iron boron magnets located above it, gradually causing them to float out of the abrasive. During this movement, because the vibrator 4 is constantly working, it continuously vibrates the abrasive at high frequency. Therefore, the abrasive will flow out through the pores of the filter screen 504. The material falls down, separating the abrasive from the neodymium iron boron magnet. When the movable cylinder 503 drives the filter screen 504 to the top of its stroke, only the neodymium iron boron magnet remains above the filter screen 504. At this point, the vibrator 4 is turned off, and the neodymium iron boron magnet can be quickly removed. The entire operation is simple and quick, greatly improving the efficiency of removing the neodymium iron boron magnet. Of course, the filter screen 504, movable cylinder 503, lead screw 501, and guide rod 502 are all made of wear-resistant metal materials (which is common knowledge to those skilled in the art and will not be described in detail here).

[0026] In addition, a discharge port can be opened at the bottom of the storage shell 2. When it is necessary to quickly remove the abrasive, simply open the discharge port and start the vibrator 4 at the same time. Most of the abrasive will flow out of the discharge port quickly under vibration, which can also effectively improve the abrasive removal efficiency.

[0027] In this embodiment, a plurality of circumferentially evenly spaced first reinforcing blocks 6 are welded and fixed to the outer ring surface of the movable cylinder 503. Each first reinforcing block 6 is horizontally arranged, and a movable ring 12 is welded and fixed to the free end of each first reinforcing block 6. The movable ring 12 is slidably arranged on the inner wall of the storage shell 2 along the vertical direction. All the first reinforcing blocks 6 are fixedly connected to the filter screen 504.

[0028] Combination Figure 5 As shown, the arrangement of multiple first reinforcing blocks 6 and movable rings 12 can effectively enhance the stability and overall strength of the filter screen 504, prevent it from deforming when supporting the neodymium iron boron magnet, and effectively improve the service life and operational stability of the filter screen 504.

[0029] In this embodiment, a plurality of second reinforcing blocks 7 are welded and fixed to the outer ring surface of the movable cylinder 503, and the number and position of the second reinforcing blocks 7 correspond one-to-one with the first reinforcing blocks 6. Each second reinforcing block 7 is disposed below the filter screen 504, and the end of the second reinforcing block 7 away from the movable cylinder 503 is arc-shaped in the vertical plane and is welded and fixed to the lower end face of the movable ring 12.

[0030] As shown in the figure, by setting a second reinforcing block to cooperate with the first reinforcing block 6, the structural stability of the first reinforcing block 6 is further improved, which indirectly improves the stability of the movable cylinder 503 and the filter screen 504 during vertical movement.

[0031] In this embodiment, the drive assembly includes a motor 8 fixedly installed at the bottom of the storage housing 2 and a sprocket 9 coaxially and fixed to the outer surface of each lead screw 501, and a chain 10 is connected between the output end of the motor 8 and each sprocket 9.

[0032] As shown in the figure, the output end of the motor 8 is vertically downward and is connected to each sprocket 9 via the chain 10, thereby driving each lead screw 501 to rotate. The structure is simple and reliable.

[0033] In this embodiment, the top of the storage housing 2 is detachably connected to an annular sealing cover 11, which covers the top of the storage chamber. The lower end of the sealing cover 11 is provided with sound insulation cotton, and the upper end of the sealing cover 11 is provided with a handle.

[0034] Combination Figure 1 As shown, the sealing cover 11 can effectively reduce noise during the polishing process, and at the same time, it can prevent impurities, dust and water stains generated during the polishing process from splashing out, thus improving the cleanliness of the surrounding environment.

[0035] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A Nd-Fe-B magnet vibration chamfering device, comprising a base (1) and a storage shell (2) arranged above the base, characterized in that: The bottom of the storage shell (2) and the upper surface of the base (1) are connected by a number of vertically placed springs, and all the springs are arranged in a ring array on the horizontal plane. The storage shell (2) is coaxially provided with a vertically placed support shell (3), and the support shell (3) is provided with a vibrator (4). The inner wall of the storage shell (2) and the peripheral surface of the support shell (3) are spaced apart and together form a storage chamber for storing abrasives and neodymium iron boron magnets. The storage chamber is provided with a screening component (5) that moves vertically. The screening component (5) includes a movable cylinder (503) that is coaxially slidably disposed on the outer surface of the support shell (3) and a filter screen (504) disposed on the peripheral surface of the movable cylinder (503). The filter screen (504) is annular, and the outer ring of the filter screen (504) is slidably connected to the inner wall of the storage shell (2). The aperture of the filter screen (504) is larger than the maximum diameter of the abrasive and smaller than the minimum diameter of the neodymium iron boron magnet.

2. The Nd-Fe-B magnet vibration chamfering device according to claim 1, characterized in that: The screening component (5) also includes multiple lead screws (501) arranged circumferentially on the outer surface of the support housing (3). Each lead screw (501) is arranged vertically, and one end of each lead screw (501) is rotatably connected to the circumferential surface of the support housing (3). The other end of each lead screw (501) passes through the bottom of the storage housing (2) and is connected to a drive assembly that drives it to rotate. The drive assembly is fixed to the bottom of the storage housing (2). The circumferential surface of the movable cylinder (503) is threadedly connected to each lead screw (501) and moves vertically under the drive of the lead screw (501).

3. A NdFeB magnet vibration chamfering device according to claim 2, characterized in that: The outer ring surface of the movable cylinder (503) is fixedly connected with a plurality of circumferentially evenly spaced first reinforcing blocks (6). Each first reinforcing block (6) is horizontally arranged, and the free end of each first reinforcing block (6) is connected to a movable ring (12). The movable ring (12) is slidably arranged on the inner wall of the storage shell (2). All the first reinforcing blocks (6) are fixedly connected to the filter screen (504).

4. The apparatus of claim 3, wherein: The outer ring surface of the movable cylinder (503) is also fixedly connected with a plurality of second reinforcing blocks (7), and the number and position of the second reinforcing blocks (7) correspond one-to-one with the first reinforcing block (6). Each second reinforcing block (7) is set below the filter screen (504), and the end of the second reinforcing block (7) away from the movable cylinder (503) is fixed to the lower end face of the movable ring (12).

5. The neodymium iron boron magnet vibration chamfering device according to claim 4, characterized in that: The drive assembly includes a motor (8) fixedly mounted on the bottom of the storage housing (2) and a sprocket (9) coaxially mounted on the outer surface of each lead screw (501), and a chain (10) is connected between the output end of the motor (8) and each sprocket (9).

6. A NdFeB magnet vibration chamfering device according to claim 5, characterized in that: The top of the storage housing (2) is detachably connected to a ring-shaped sealing cover (11), which covers the top of the storage chamber. The lower end of the sealing cover (11) is provided with sound insulation cotton, and the upper end of the sealing cover (11) is provided with a handle.

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