Neodymium-iron-boron magnet grinding device

Abstract

The invention relates to the technical field of magnet machining, in particular to a neodymium iron boron magnet grinding device which comprises a rack, a grinding head arranged on the rack and a rotating disc used for containing a magnet, the rotating disc is located below the grinding head, a containing table is fixedly arranged on the rack, a receding groove is formed in the containing table, and the rotating disc is located in the receding groove. A motor for driving the turntable to rotate is arranged in the placing table; a first protective cover is movably arranged on the placing table, a first air cylinder is horizontally and fixedly arranged on the placing table, a telescopic shaft of the first air cylinder is fixedly connected to the first protective cover, a first receding opening is formed in the first protective cover, and a second receding opening is formed in the second protective cover. And when the first protective cover makes contact with the second protective cover, the polishing head is located in the first protective cover and the second protective cover, and the magnet scrap removing device has the beneficial effects that splashing of magnet scraps is reduced, and cleaning is convenient.

Description

Technical Field

[0001] This invention relates to the technical field of magnet processing, specifically to a neodymium iron boron magnet grinding device. Background Technology

[0002] With the rapid development of modern technology and people's dissatisfaction with their current lives, all kinds of devices have emerged. Magnets cannot meet the requirements of these devices, so electromagnets have been developed. The processing of electromagnets requires grinding and polishing equipment.

[0003] A common type of magnet polishing equipment includes a polishing head, a drive shaft for rotating the polishing head, a frame, and a motor for providing power. The drive shaft is coaxially fixedly connected to the motor's rotating shaft, and the motor is mounted on the frame. The frame is equipped with a lifting assembly for raising and lowering the motor, and a placement platform is fixedly mounted on the frame. The magnet is fixed on the placement platform. During polishing, the lifting assembly is driven to move the polishing head toward the magnet to polish it.

[0004] The above-mentioned technical conditions also have the drawback that during the polishing process, magnetic shavings are easily scattered around. Because of their strong adsorption capacity, these shavings tend to adhere to the surrounding metal, making them inconvenient to clean.

[0005] Based on this, the present invention designs a neodymium iron boron magnet grinding device to solve the above problems. Summary of the Invention

[0006] To achieve the above objectives, the present invention provides the following technical solution: a neodymium iron boron magnet grinding device, comprising a frame, a grinding head mounted on the frame, and a turntable for placing the magnet, the turntable being located below the grinding head; a placement platform is fixedly mounted on the frame, the placement platform having a clearance groove, the turntable being located in the clearance groove, and a motor for driving the turntable to rotate being mounted in the placement platform; a first protective cover is movably mounted on the placement platform, a first cylinder is horizontally fixedly mounted on the placement platform, the telescopic shaft of the first cylinder being fixedly connected to the first protective cover, the first protective cover having a first clearance opening, and a second protective cover being mounted on the placement platform, the second protective cover having the same structure as the first protective cover, the second protective cover having a second clearance opening; when the first and second protective covers are in contact with each other, the grinding head is located within the first and second protective covers.

[0007] By adopting the above technical solution, when the magnet is being polished, after the magnet is placed in the turntable, the first cylinder is driven to bring the first protective cover and the second protective cover closer to each other. The first protective cover and the second protective cover cover the polishing head, blocking the flying magnetic shavings during polishing, reducing the amount of magnetic shavings flying outside, and achieving the effect of easy cleaning.

[0008] Preferably, a water outlet pipe is fixedly installed in the first protective cover, and the water outlet of the water outlet pipe faces the magnet.

[0009] By adopting the above technical solution, water is added through the water outlet pipe during the grinding process, which reduces the high temperature of the grinding head and protects the grinding head.

[0010] Preferably, a mounting plate is fixedly installed in the first protective cover, a water outlet slit is vertically opened on the mounting plate, a water inlet cavity is opened in the mounting plate, the water inlet cavity communicates with the water inlet slit, a water inlet pipe is fixedly connected to the mounting plate, a water pump is connected to the outside of the water inlet pipe, and a first water curtain is formed when water is discharged from the water outlet slit. A mounting plate is also installed on the second protective cover, and the magnet is in the first water curtain.

[0011] By adopting the above technical solution, the water curtain wall further blocks the magnetic debris, allowing it to flow down with the water, thus further reducing the amount of magnetic debris splashing outside.

[0012] Preferably, a fixing plate is fixedly installed on the first protective cover. The fixing plate has the same structure as the mounting plate. The fixing plate is located near the side wall corner of the first protective cover. A connecting pipe for water transmission is fixedly connected between the fixing plate and the mounting plate. When water is sprayed out from the fixing plate, a second water curtain is formed.

[0013] By adopting the above technical solution, the high-energy magnetic debris passes through the first water curtain wall and then comes into contact with the second water curtain wall, causing the magnetic debris to fall and reducing the amount of magnetic debris adhering to the side wall of the first protective cover.

[0014] Preferably, both the first and second protective covers are made of rigid transparent plastic.

[0015] By adopting the above technical solution, magnetic shavings are prevented from adhering to the first and second protective covers, while also making it easier for staff to observe the polishing process.

[0016] Preferably, a return port is provided on the placement platform, the return port is located below the first water curtain wall and the second water curtain wall, a recycling ring is fixedly installed on the placement platform, the recycling ring is located below the return port, a recycling pipe is fixedly connected to the recycling ring, and the recycling pipe is externally connected to the recycling water tank.

[0017] By adopting the above technical solution, the water flowing from the first and second water curtain walls falls into the recycling ring, and then flows through the recycling pipe to the recycling tank for recycling, reducing water waste.

[0018] Preferably, the recycling ring has a vertically opening lifting hole, a lifting rod is movably installed in the lifting hole, a second cylinder is fixedly installed in the placement platform, the telescopic shaft of the second cylinder is coaxially fixedly connected to the lifting rod, multiple lifting rods are provided on the recycling ring, an adsorption ring is provided in the return port, the adsorption ring is placed on the lifting rod, and the adsorption ring is a metal ring capable of adsorbing magnets.

[0019] By adopting the above technical solution, the adsorption ring is placed on the lifting rod. When the water flows down through the return port, the magnetic debris carried in the water is adsorbed into the adsorption ring, which makes it easy to collect the magnetic debris.

[0020] Preferably, a guide plate is fixedly provided on the reflux port, and the guide plate is inclined toward the adsorption ring.

[0021] By adopting the above technical solution, the guide plate guides the water flow, allowing the magnetic debris to approach the adsorption ring, making it easier for the magnetic debris to be adsorbed onto the adsorption ring.

[0022] Preferably, a guide plate is fixedly provided on the turntable, and the guide plate is inclined toward the adsorption ring.

[0023] By adopting the above technical solution, the guide plate guides the water flow, allowing the magnetic debris to approach the adsorption ring, making it easier for the magnetic debris to be adsorbed onto the adsorption ring.

[0024] In summary, this application has the following beneficial technical effects: when the magnet is being polished, after the magnet is placed in the turntable, the first cylinder is driven to bring the first protective cover and the second protective cover closer to each other. The first protective cover and the second protective cover cover the polishing head, blocking the flying magnet shavings during polishing, reducing the amount of magnet shavings flying outside, and achieving the effect of easy cleaning. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the rack in this embodiment; Figure 2 This is a schematic diagram of the structure of the first protective cover in this embodiment; Figure 3 This is a schematic diagram of the position and structure of the mounting plate in this embodiment; Figure 4 This is a schematic diagram of the structure when the first water curtain wall is formed in this embodiment; Figure 5This is a schematic diagram of the structure when the magnet is placed on the turntable in this embodiment; Figure 6 This is a schematic diagram of the adsorption ring structure in this embodiment; Figure 7 This is a schematic diagram of the reflux port structure in this embodiment; Figure 8 This is a schematic diagram of the recovery ring structure in this embodiment.

[0027] The attached diagram lists the components represented by each number as follows: 1. Frame; 2. Grinding head; 3. Turntable; 4. Placement platform; 6. Motor; 7. Magnet; 8. First protective cover; 9. Second protective cover; 10. First cylinder; 11. First clearance port; 12. Second clearance port; 13. Water outlet pipe; 14. Mounting plate; 15. Water outlet seam; 16. Water inlet chamber; 17. Water inlet pipe; 18. First water curtain wall; 19. Fixing plate; 20. Connecting pipe; 21. Second water curtain wall; 22. Return port; 23. Recovery ring; 24. Recovery tank; 25. Recovery pipe; 26. Lifting hole; 27. Lifting rod; 28. Second cylinder; 29. ​​Adsorption ring; 30. Guide plate; 31. Guide plate. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0030] A neodymium iron boron magnet grinding device includes a frame 1, a grinding head 2 mounted on the frame 1, and a turntable 3 for placing magnets 7. The grinding head 2 is elliptical and mounted on the frame 1 and is driven by a motor to rotate at high speed. The turntable 3 is located below the grinding head 2. A placement platform 4 is fixedly mounted on the frame 1, and a return port 22 is opened on the placement platform 4. The turntable 3 is located in the return port 22. A motor 6 for driving the turntable 3 to rotate is installed in the placement platform 4. The magnets 7 are detachably fixed on the turntable 3. The turntable 3 drives the magnets 7 to rotate. During grinding, the drive motor makes the grinding head 2 rotate at high speed and moves the grinding head 2 down to grind the magnets 7. The placement platform 4 is equipped with a first protective cover 8. A first cylinder 10 is horizontally fixed on the placement platform 4, and the telescopic shaft of the first cylinder 10 is fixedly connected to the first protective cover 8. A stabilizing plate is fixedly installed on the placement platform 4, and a stabilizing rod is horizontally inserted into the stabilizing plate and fixedly connected to the first protective cover 8. A first clearance opening 11 is provided on the first protective cover 8. A second protective cover 9 is provided on the placement platform 4. The second protective cover 9 has the same structure as the first protective cover 8, and its movement method is also the same as the first protective cover 8. A second clearance opening 12 is provided on the second protective cover 9. A water outlet pipe 13 is fixedly installed in the first protective cover 8. The water outlet of the water outlet pipe 13 faces the magnet 7. During the grinding process, water is added to the water outlet pipe 13 to reduce the high temperature of the grinding head 2 and protect the grinding head 2.

[0031] A mounting plate 14 is fixedly installed in the first protective cover 8. A water outlet slit 15 is vertically opened on the mounting plate 14. A water inlet cavity 16 is opened in the mounting plate 14 and communicates with the water inlet slit. A water inlet pipe 17 is fixedly connected to the mounting plate 14 and a water pump is connected to the outside of the water inlet pipe 17. When water is discharged from the water outlet slit 15, a first water curtain is formed. A mounting plate 14 is also installed on the second protective cover 9. Both the first protective cover 8 and the second protective cover 9 are made of rigid transparent plastic to prevent magnetic shavings from adhering to the first protective cover 8 and the second protective cover 9, and at the same time, it is convenient for staff to observe the polishing process. After placing the magnet 7 in the turntable 3, the first cylinder 10 is driven to bring the first protective cover 8 and the second protective cover 9 closer together. The first protective cover 8 and the second protective cover 9 cover the grinding head 2. The water pump is then driven to allow water to flow into the water inlet chamber 16 and out from the water outlet 15 to form the first water curtain wall 18. The magnet 7 is located between the first water curtain wall 18 of the first protective cover 8 and the first water curtain wall of the second protective cover 9. During grinding, the first protective cover 8 and the second protective cover 9 block the magnet shavings, reducing the amount of magnet shavings that fly out and making it easier to clean.

[0032] A fixing plate 19 is fixedly installed on the first protective cover 8. The structure of the fixing plate 19 is the same as that of the mounting plate 14. The fixing plate 19 is located near the side wall corner of the first protective cover 8. A connecting pipe 20 for water flow is fixedly connected between the fixing plate 19 and the mounting plate 14. The connecting pipe 20 is connected to the water inlet chamber 16. When the water flows out of the fixing plate 19, a second water curtain 21 is formed. The return port 22 is located below the first water curtain 18 and the second water curtain 21. A recovery ring 23 is fixedly installed on the placement platform 4. The recovery ring 23 is located below the return port 22. A recovery groove 24 is opened on the recovery ring 23. A connection port is opened at the bottom of the recovery groove 24. A filter screen is fixedly installed on the connection port. A recovery pipe 25 is fixedly connected to the connection port. The recovery pipe 25 is connected to the recovery water tank. During polishing, water from the inlet pipe 17 flows into the fixed plate 19 and out from the outlet 15 of the fixed plate 19, forming a second water curtain 21. The second water curtain 21 flows down along the side wall of the first protective cover 8. During polishing, the first water curtain 18 and the second water curtain 21 respectively block the magnetic debris. The magnetic debris with lower energy flows down with the water flow of the first water curtain 18, while the magnetic debris with higher energy passes through the first water curtain 18 and comes into contact with the second water curtain 21, and flows down with the water flow of the second water curtain, further reducing the magnetic debris splashing outside. The water flow carrying magnetic debris enters the return port 22 for recycling. The water flow carrying magnetic debris falls into the recycling ring 23, and the water flow flows through the recycling pipe 25 to the recycling water tank for recycling. The filter screen blocks the magnetic debris.

[0033] A lifting hole 26 is vertically opened on the recovery ring 23, and a lifting rod 27 is movably installed in the lifting hole 26. A second cylinder 28 is fixedly installed in the placement platform 4. The telescopic shaft of the second cylinder 28 is coaxially fixedly connected to the lifting rod 27. Multiple lifting rods 27 are provided on the recovery ring 23. An adsorption ring 29 is provided in the return port 22. The adsorption ring 29 is placed on the lifting rod 27. The adsorption ring 29 is a metal ring that can adsorb the magnet 7. In this embodiment, the metal ring is an iron ring. A guide plate 30 is fixedly installed on the return port 22. The guide plate 30 is inclined toward the adsorption ring 29. A guide plate 31 is fixedly installed on the turntable 3. The guide plate 31 is inclined toward the adsorption ring 29. The adsorption ring is located between the guide plate and the guide plate. Before the water flows into the recycling ring 23 through the return port 22, the guide plate 31 guides the water flowing down from the first water curtain wall, directing the water flow towards the adsorption ring 29, allowing the magnetic debris to approach the adsorption ring 29 and be more fully adsorbed onto it. Similarly, the guide plate 31 guides the water flowing down from the second water curtain wall, directing the water flow towards the adsorption ring 29, allowing the magnetic debris to approach the adsorption ring 29 and be more fully adsorbed onto it, reducing the accumulation of magnetic debris in the recycling tank 24. When the adsorption ring 29 has adsorbed too much magnetic debris, the second cylinder 28 is driven to raise the lifting rod 27, lifting the adsorption ring 29 and removing it from the return port 22. The magnetic debris on the adsorption ring 29 is then scraped off for recycling.

[0034] It should be noted that the delivery pipes in this embodiment are all flexible hoses.

[0035] The implementation principle of this embodiment is as follows: Before the magnet 7 is polished, the first cylinder 10 is driven to bring the first protective cover 8 and the second protective cover 9 closer together. The first protective cover 8 and the second protective cover 9 cover the polishing head 2. The water pump is driven to let the water flow into the water inlet chamber 16 and out from the water outlet 15 to form the first water curtain wall. At this time, the magnet 7 is located between the first water curtain wall of the first protective cover 8 and the first water curtain wall of the second protective cover 9. During polishing, the first protective cover 8 and the second protective cover 9 block the magnet shavings, reducing the magnet shavings from splashing outside and achieving the effect of easy cleaning. During polishing, the first and second water curtains block the magnetic debris. The magnetic debris with lower energy flows down with the water flow from the first water curtain, while the magnetic debris with higher energy passes through the first water curtain and comes into contact with the second water curtain, then flows down with the water flow from the second water curtain, further reducing the amount of magnetic debris splashing out.

[0036] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding device for neodymium iron boron magnets, comprising a frame (1), a grinding head (2) mounted on the frame (1), and a turntable (3) for placing magnets (7), the turntable (3) being located below the grinding head (2), characterized in that: A placement platform (4) is fixedly installed on the frame (1). A clearance groove is provided on the placement platform (4). The turntable (3) is located in the clearance groove. A motor (6) for driving the turntable (3) to rotate is provided in the placement platform (4). A first protective cover (8) is movably installed on the placement platform (4). A first cylinder (10) is horizontally fixed on the placement platform (4). The telescopic shaft of the first cylinder (10) is fixedly connected to the first protective cover (8). A first clearance opening (11) is provided on the first protective cover (8). A second protective cover (9) is provided on the placement platform (4). The second protective cover (9) has the same structure as the first protective cover (8). A second clearance opening (12) is provided on the second protective cover (9). When the first protective cover (8) and the second protective cover (9) are in contact with each other, the grinding head (2) is located in the first protective cover (8) and the second protective cover (9).

2. The neodymium iron boron magnet grinding device according to claim 1, characterized in that: An installation plate (14) is fixedly installed in the first protective cover (8). A water outlet slit (15) is vertically opened on the installation plate (14). A water inlet cavity (16) is opened in the installation plate (14). The water inlet cavity (16) is connected to the water inlet slit. A water inlet pipe (17) is fixedly connected to the installation plate (14). A water pump is connected to the outside of the water inlet pipe (17). When water is discharged from the water outlet slit (15), a first water curtain wall (18) is formed. An installation plate (14) is also installed on the second protective cover (9). The magnet (7) is in the first water curtain wall (18).

3. The neodymium iron boron magnet grinding device according to claim 2, characterized in that: A fixing plate (19) is fixedly installed on the first protective cover (8). The structure of the fixing plate (19) is the same as that of the mounting plate (14). The fixing plate (19) is located near the side wall corner of the first protective cover (8). A connecting pipe (20) for water transmission is fixedly connected between the fixing plate (19) and the mounting plate (14). When water is sprayed out from the fixing plate (19), a second water curtain wall (21) is formed.

4. The neodymium iron boron magnet grinding device according to claim 3, characterized in that: Both the first protective cover (8) and the second protective cover (9) are made of rigid transparent plastic.

5. The neodymium iron boron magnet grinding device according to claim 2, characterized in that: The placement platform (4) is provided with a return port (22), which is located below the first water curtain wall (18) and the second water curtain wall (21). A recycling ring (23) is fixedly installed on the placement platform (4), which is located below the return port (22). A recycling pipe (25) is fixedly connected to the recycling ring (23), which is externally connected to the recycling water tank.

6. The neodymium iron boron magnet grinding device according to claim 5, characterized in that: The recycling ring (23) has a vertically opening lifting hole (26), and a lifting rod (27) is movably installed in the lifting hole (26). A second cylinder (28) is fixedly installed in the placement platform (4). The telescopic shaft of the second cylinder (28) is coaxially fixedly connected to the lifting rod (27). Multiple lifting rods (27) are provided on the recycling ring (23). An adsorption ring (29) is provided in the return port (22). The adsorption ring (29) is placed on the lifting rod (27). The adsorption ring (29) is a metal ring that can adsorb magnets (7).

7. The neodymium iron boron magnet grinding device according to claim 6, characterized in that: A guide plate (30) is fixedly installed on the return port (22), and the guide plate (30) is inclined toward the adsorption ring (29).

8. The neodymium iron boron magnet grinding device according to claim 7, characterized in that: A guide plate (31) is fixedly installed on the turntable (3), and the guide plate (31) is inclined toward the adsorption ring (29).

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