Neodymium-iron-boron magnet compression molding die

Abstract

The utility model discloses a neodymium-iron-boron magnet compression forming die, and relates to the technical field of neodymium-iron-boron magnet compression forming, the neodymium-iron-boron magnet compression forming die comprises a main body, an extrusion cavity is arranged in the main body, a lateral extrusion block is arranged outside the extrusion cavity, a strong spring is connected in the lateral extrusion block, a clamping block is arranged outside the strong spring, and the clamping block is connected with the main body. A drill rod is movably connected to the outer portion of the clamping block, a movable plate is arranged at the bottom of the extrusion cavity, an electric push rod is installed at the bottom of the movable plate, a fixed chamber is arranged outside the electric push rod, a second magnetic block is installed on the front face of the fixed chamber, and a first magnetic block is movably connected to the front face of the second magnetic block. According to the drilling device, the main body, the lateral extrusion blocks, the drill rods, the strong springs and the clamping blocks are arranged, the drill rods of different types can be clamped through cooperation of the strong springs and the clamping blocks, drill holes of different sizes are formed in the magnet, the application range is wide, and the drilling device has good practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of NdFeB magnet pressing and forming, in particular to a NdFeB magnet pressing and forming die. Background Art

[0002] NdFeB, in simple terms, is a kind of magnet. Different from the magnets we usually see, it is called the "king of magnets" because of its excellent magnetic properties. As a kind of rare earth permanent magnet material, NdFeB has extremely high magnetic energy product and coercive force. At the same time, the advantage of high energy density makes NdFeB permanent magnet material widely used in modern industry and electronic technology, making it possible to miniaturize, lighten and thin the equipment such as instruments and meters, electroacoustic motors, magnetic separation and magnetization.

[0003] The Chinese utility model patent application publication specification CN202021916303.5 discloses a NdFeB magnet pressing and forming mold. Although the NdFeB magnet pressing and forming mold solves the problem in the prior art that the molding cavity for pressing the NdFeB magnet is arranged horizontally, and the pressing block moves horizontally to press the NdFeB magnet horizontally, the disadvantage of this method is that due to the effect of gravity, when the pressing block moves horizontally to push the NdFeB powder to combine, the powder density at the bottom of the NdFeB magnet will be higher than the powder density at the top, resulting in the NdFeB magnet after pressing and forming. The magnetic conductivity is uneven; and if a through hole is required at the axis of the NdFeB magnet, the pressed NdFeB magnet must be drilled again, which increases the process. In addition, since the NdFeB magnet is easy to pulverize, drilling is inconvenient. At the same time, if a NdFeB magnet with an arc-shaped side is required, the pressed rectangular NdFeB magnet must be reprocessed to produce an arc-shaped surface, which has the problems of complex processing, high cost and low efficiency. However, the NdFeB magnet pressing and forming mold is only suitable for embedding the same type of drill rod during use, which reduces the scope of use of the mold. Utility Model Content

[0004] The utility model aims to solve the problem that the existing NdFeB magnet pressing and forming mold is only suitable for embedding the same type of drill rod during use, which reduces the use range of the mold, and proposes a NdFeB magnet pressing and forming mold.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A NdFeB magnet pressing and forming die, comprising:

[0007] A main body, wherein an extrusion cavity is arranged inside the main body, and a lateral extrusion block is arranged outside the extrusion cavity, a strong spring is connected inside the lateral extrusion block, and a clamping block is installed outside the strong spring, the outside of the clamping block is movably connected to a drill rod, a movable plate is arranged at the bottom of the extrusion cavity, and an electric push rod is installed at the bottom of the movable plate, a fixed chamber is arranged outside the electric push rod, and a second magnetic block is installed on the front of the fixed chamber, the front of the second magnetic block is movably connected to the first magnetic block, and a sealing plate is installed outside the first magnetic block, a connecting shaft is installed outside the sealing plate, and a damping shaft is installed outside the connecting shaft.

[0008] Preferably, a support frame is installed on the top of the main body, a hydraulic rod is installed inside the support frame, and an upper extrusion block is installed at the bottom of the hydraulic rod.

[0009] Preferably, a lifting structure is formed between the upper extrusion block and the extrusion chamber through a hydraulic rod, and the length of the upper extrusion block is smaller than the length of the extrusion chamber.

[0010] Preferably, a strong spring is used to form an elastic structure between the clamping block and the drill rod, and the cross-section of the clamping block is an arc-shaped structure.

[0011] Preferably, a lifting structure is formed between the movable plate and the main body through an electric push rod, and the electric push rod is distributed at the bottom center point of the movable plate.

[0012] Preferably, a rotating structure is formed between the sealing plate and the fixed chamber via a damping shaft and a connecting shaft, and an outer wall of the connecting shaft is in contact with an inner wall of the damping shaft.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] 1. In the utility model, a main body, a lateral extrusion block, a drill rod, a strong spring and a clamping block are provided. Through the cooperation of the strong spring and the clamping block, different types of drill rods can be clamped, so that drill holes of different sizes can be formed inside the magnet. The utility model has a wide range of uses and is highly practical.

[0015] 2. In the utility model, a main body, an extrusion chamber, an electric push rod and a movable plate are provided. By controlling the electric push rod, the movable plate can be conveniently driven to perform an upward operation, so that the NdFeB magnet can be pushed out conveniently without manual removal, thereby improving the processing efficiency of the magnet and having high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the side structure of the lateral extrusion plate in the utility model.

[0019] Legend:

[0020] 1. Main body; 2. Support frame; 3. Hydraulic rod; 4. Upper extrusion block; 5. Lateral extrusion block; 6. Drill rod; 7. Fixed chamber; 8. Damping shaft; 9. Connecting shaft; 10. Sealing plate; 11. First magnetic block; 12. Second magnetic block; 13. Electric push rod; 14. Movable plate; 15. Extrusion chamber; 16. Power spring; 17. Clamp block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-3A NdFeB magnet pressing and forming mold comprises a main body 1, an extrusion cavity 15 is arranged inside the main body 1, and a lateral extrusion block 5 is arranged outside the extrusion cavity 15, a strong spring 16 is connected inside the lateral extrusion block 5, and a clamping block 17 is installed outside the strong spring 16, an elastic structure is formed between the clamping block 17 and the drill rod 6 through the strong spring 16, and the cross section of the clamping block 17 is an arc-shaped structure, the drill rod 6 is manually pushed, the drill rod 6 causes the clamping block 17 to move, and the movement of the clamping block 17 causes the strong spring 16 to compress, when the drill rod 6 is stopped, the clamping block 17 is reset by the action of the strong spring 16, so that the drill rod 6 can be clamped, the drill rod 6 can be clamped outside the clamping block 17, a movable plate 14 is arranged at the bottom of the extrusion cavity 15, and an electric push rod 13 is installed at the bottom of the movable plate 14, and a lifting structure is formed between the movable plate 14 and the main body 1 through the electric push rod 13, The electric push rod 13 is distributed at the bottom center point of the movable plate 14. When the electric push rod 13 is started, the electric push rod 13 drives the movable plate 14 to perform an ascending operation. The movable plate 14 will ascend in the extrusion chamber 15, so that it is convenient to push the formed NdFeB magnet out. A fixed chamber 7 is arranged outside the electric push rod 13, and a second magnetic block 12 is installed on the front of the fixed chamber 7. The front of the second magnetic block 12 is movably connected with the first magnetic block 11, and a sealing plate 10 is installed outside the first magnetic block 11. A rotating structure is formed between the sealing plate 10 and the fixed chamber 7 through a damping shaft 8 and a connecting shaft 9, and the outer wall of the connecting shaft 9 is in contact with the inner wall of the damping shaft 8. The sealing plate 10 is manually operated, and the sealing plate 10 is rotated by the damping shaft 8 and the connecting shaft 9, so that it is convenient to complete the opening of the fixed chamber 7. A connecting shaft 9 is installed outside the sealing plate 10, and a damping shaft 8 is installed outside the connecting shaft 9.

[0023] A support frame 2 is installed on the top of the main body 1, and a hydraulic rod 3 is installed inside the support frame 2. An upper extrusion block 4 is installed at the bottom of the hydraulic rod 3. The hydraulic rod 3 forms a lifting structure between the upper extrusion block 4 and the extrusion chamber 15, and the length of the upper extrusion block 4 is less than the length of the extrusion chamber 15. When the hydraulic rod 3 is started, the hydraulic rod 3 drives the upper extrusion block 4 to descend, and the upper extrusion block 4 will descend into the extrusion chamber 15, so that the neodymium iron boron magnet inside the extrusion chamber 15 can be extruded and formed.

[0024] Working principle: When in use, first place the NdFeB magnet to be extruded into the extrusion chamber 15, start the hydraulic rod 3, and the hydraulic rod 3 drives the upper extrusion block 4 to descend, and the upper extrusion block 4 will descend into the extrusion chamber 15, so that the NdFeB magnet inside the extrusion chamber 15 can be extruded and formed. When it is necessary to set a through hole in the magnet, the drill rod 6 is manually pushed, and the drill rod 6 causes the clamping block 17 to move, and the movement of the clamping block 17 causes the strong spring 16 to compress. When the drill rod 6 is stopped, the clamping block 17 is reset by the action of the strong spring 16, so that the drill rod 6 can be clamped, and the drill rod 6 It will be embedded in the overall device, and then the magnet will be put in. When extruding, a drill hole will be formed inside the magnet. The cooperation of the clamping block 17 and the strong spring 16 can clamp the drill rod 6 of different sizes. The electric push rod 13 is started, and the electric push rod 13 drives the movable plate 14 to rise. The movable plate 14 will rise in the extrusion chamber 15, which makes it convenient to push the formed NdFeB magnet out. The sealing plate 10 is manually operated, and the sealing plate 10 is rotated by the damping shaft 8 and the connecting shaft 9, which makes it convenient to complete the opening of the fixed chamber 7 and to inspect the electric push rod 13 inside the fixed chamber 7.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A NdFeB magnet pressing die, characterized in that: include: A main body (1), wherein an extrusion chamber (15) is arranged inside the main body (1), and a lateral extrusion block (5) is arranged outside the extrusion chamber (15), the inside of the lateral extrusion block (5) is connected to a strong spring (16), and a clamping block (17) is installed outside the strong spring (16), and the outside of the clamping block (17) is movably connected to a drill rod (6), a movable plate (14) is arranged at the bottom of the extrusion chamber (15), and an electric push rod (13) is installed at the bottom of the movable plate (14), a fixed chamber (7) is arranged outside the electric push rod (13), and a second magnetic block (12) is installed on the front of the fixed chamber (7), the front of the second magnetic block (12) is movably connected to the first magnetic block (11), and a sealing plate (10) is installed outside the first magnetic block (11), a connecting shaft (9) is installed outside the sealing plate (10), and a damping shaft (8) is installed outside the connecting shaft (9).

2. The NdFeB magnet pressing mold according to claim 1, characterized in that: A support frame (2) is installed on the top of the main body (1), a hydraulic rod (3) is installed inside the support frame (2), and an upper extrusion block (4) is installed at the bottom of the hydraulic rod (3).

3. The NdFeB magnet pressing mold according to claim 2, characterized in that: A lifting structure is formed between the upper extrusion block (4) and the extrusion chamber (15) via a hydraulic rod (3), and the length of the upper extrusion block (4) is smaller than the length of the extrusion chamber (15).

4. The NdFeB magnet pressing mold according to claim 1, characterized in that: A strong spring (16) forms an elastic structure between the clamping block (17) and the drill rod (6), and the cross section of the clamping block (17) is an arc-shaped structure.

5. The NdFeB magnet pressing mold according to claim 1, characterized in that: The movable plate (14) and the main body (1) form a lifting structure through an electric push rod (13), and the electric push rod (13) is distributed at the bottom center point of the movable plate (14).

6. The NdFeB magnet pressing mold according to claim 1, characterized in that: A rotating structure is formed between the sealing plate (10) and the fixed chamber (7) via a damping rotating shaft (8) and a connecting shaft (9), and the outer wall of the connecting shaft (9) is in contact with the inner wall of the damping rotating shaft (8).

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