Microwave high-temperature sintering device for preparing rare earth neodymium iron boron permanent magnet

Abstract

The utility model belongs to the field of microwave high-temperature sintering equipment, and particularly relates to a microwave high-temperature sintering device for preparing a rare earth neodymium iron boron permanent magnet, which comprises a box body, heating mechanisms, a placing disc and a clamping mechanism, the heating mechanisms are arranged on the inner walls of the two sides of the box body, and the placing disc is rotatably arranged on the inner wall of the bottom of the box body; the clamping mechanism is arranged in the box body, the clamping mechanism comprises a control box, a moving hole and clamping seats, the same control box is installed on the inner walls of the two sides of the box body in a sliding mode, the moving hole is formed in the inner wall of the bottom of the control box, the clamping seats are installed in the moving hole in a sliding mode, and the two clamping seats are matched with each other; and two driving seats are slidably mounted on the inner wall of the top of the box body, and the driving seats are fixedly connected with the control box. The rare earth neodymium iron boron permanent magnet sintering box is reasonable in design, so that sintered rare earth neodymium iron boron permanent magnets can be conveniently taken out, and the situation that workers are scalded due to high temperature in the box body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave high-temperature sintering equipment, in particular to a microwave high-temperature sintering device made of rare earth neodymium iron boron permanent magnets. Background Art

[0002] Magnetic materials, especially rare earth permanent magnet materials, among which sintered NdFeB permanent magnet materials have been rapidly industrialized due to their excellent cost-effectiveness and are widely used in various high-tech fields such as computer hard disk drives, hard disk voice coil motors, motors, generators, nuclear magnetic resonance equipment, audio, and communication equipment.

[0003] At present, a preparation process of a rare earth NdFeB permanent magnet is disclosed in a Chinese patent announcement with the announcement number CN111430143B, which relates to the field of rare earth functional permanent magnetic materials. The preparation process of the rare earth NdFeB permanent magnet mainly includes the steps of batching, smelting, hydrogen crushing treatment, mixing treatment, air flow milling treatment, mixed powder cooling treatment, magnetic field orientation pressing, microwave high temperature sintering, magnetic field aging heat treatment, etc. This invention overcomes the shortcomings of the prior art, effectively improves the stability of NdFeB permanent magnet materials on the basis of reducing the use of heavy rare earth elements, and comprehensively improves the various properties of NdFeB magnets. At the same time, the preparation method of the present invention is applicable to rare earth NdFeB permanent magnets of various performance series, and is suitable for promotion and use.

[0004] In actual production, it is found that the preparation of rare earth NdFeB permanent magnets requires microwave high-temperature sintering. However, when taking out the sintered rare earth NdFeB permanent magnets, the temperature inside the box is high, which can easily cause burns to the staff. Therefore, we propose a spare microwave high-temperature sintering device for the preparation of rare earth NdFeB permanent magnets to solve the above problem. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a microwave high-temperature sintering device made of rare earth neodymium iron boron permanent magnet.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A rare earth NdFeB permanent magnet system standby microwave high temperature sintering device, comprising a box, a heating mechanism, a placement plate and a clamping mechanism, wherein the heating mechanism is mounted on both side inner walls of the box, the placement plate is rotatably mounted on the bottom inner wall of the box, and the clamping mechanism is arranged in the box;

[0008] The clamping mechanism includes a control box, a movable hole and a clamping seat. The same control box is slidably mounted on the inner walls of both sides of the box body. The movable hole is opened on the bottom inner wall of the control box. The clamping seat is slidably mounted in the movable hole, and the two clamping seats are adapted to each other.

[0009] Two driving seats are slidably mounted on the top inner wall of the box body, and the driving seats are fixedly connected to the control box. Two driving screws are rotatably mounted on the rear inner wall of the box body, and the driving seats are threadedly sleeved on the driving screws.

[0010] Preferably, a driving mechanism is provided in the control box, the driving mechanism is connected to the clamping seat, and a guiding structure is provided between the control box and the box body.

[0011] Preferably, the driving mechanism comprises a stepper motor and a threaded rod, the stepper motor is fixedly mounted on an inner wall of one side of the control box, the threaded rod is fixedly mounted on the output shaft of the stepper motor, and the clamping seat is threadedly sleeved on the threaded rod.

[0012] Preferably, the threaded rod is provided with two external threads with opposite rotation directions, the clamping seat is provided with an internal threaded hole, and the external thread is meshed with the corresponding internal thread.

[0013] Preferably, the guide structure includes a T-shaped slot and a T-shaped seat, the T-shaped slot is opened on the inner walls of both sides of the box body, the T-shaped seat is fixedly installed on both sides of the control box, and the T-shaped seat is slidably connected to the T-shaped slot.

[0014] Preferably, a shell is fixedly mounted on the rear side of the box body, and the rear end of the driving screw extends into the shell.

[0015] Preferably, a driving shaft is rotatably mounted on the inner walls of both sides of the shell, a rotating motor is fixedly mounted on one side of the shell, and the output shaft of the rotating motor is fixedly connected to the driving shaft.

[0016] Preferably, a worm is fixedly mounted on the driving shaft, a worm wheel is fixedly mounted on the driving screw, and the worm is meshed with the corresponding worm wheel.

[0017] Beneficial effects of the utility model:

[0018] 1. The rare earth NdFeB permanent magnet material container can be placed by placing the plate, and the temperature can be increased by the heating mechanism, so as to achieve the purpose of microwave high temperature sintering;

[0019] 2. When sintering is completed, the rotating motor is started, which can drive the driving shaft and the worm to rotate. The worm drives the driving screw to rotate through the worm gear. The driving screw can drive the driving seat and the control box to move. The control box can drive the clamping seat to move to both sides of the container.

[0020] 3. Through the cooperation of the driving motor, the threaded rod and the clamping seat, the threaded rod can drive the two clamping seats to move towards each other, and the two clamping seats can achieve the purpose of clamping and fixing the container. At this time, continue to start the rotating motor, and the driving screw can drive the control box, the clamping seat and the container to move toward the opening of the box, so as to facilitate the removal of the sintered rare earth NdFeB permanent magnet and avoid burns to the staff caused by the high temperature in the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a microwave high-temperature sintering device for rare earth neodymium iron boron permanent magnets proposed in the utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of a microwave high-temperature sintering device made of rare earth neodymium iron boron permanent magnets proposed by the utility model;

[0023] Figure 3 This is a rear structural schematic diagram of a rare earth neodymium iron boron permanent magnet standby microwave high temperature sintering device proposed by the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of part A of a microwave high-temperature sintering device made of rare earth neodymium iron boron permanent magnets proposed by the utility model;

[0025] Figure 5 This is a schematic structural diagram of part B of a microwave high-temperature sintering device made of rare earth neodymium iron boron permanent magnets proposed in the utility model.

[0026] In the figure: 1. box body; 2. heating mechanism; 3. placement plate; 4. control box; 5. clamping seat; 6. moving hole; 7. guide mechanism; 8. stepping motor; 9. threaded rod; 10. driving groove; 11. driving seat; 12. driving screw; 13. housing; 14. worm gear; 15. driving shaft; 16. worm; 17. rotating motor. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. 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.

[0028] Reference Figure 1-5A rare earth neodymium iron boron permanent magnet system standby microwave high temperature sintering device, comprising a box 1, a heating mechanism 2, a placement plate 3 and a clamping mechanism, the heating mechanism 2 is installed on the inner walls of both sides of the box 1, the placement plate 3 is rotatably installed on the bottom inner wall of the box 1, the clamping mechanism is arranged in the box 1, the clamping mechanism comprises a control box 4, a moving hole 6 and a clamping seat 5, the inner walls of both sides of the box 1 are slidably installed with the same control box 4, the moving hole 6 is opened on the bottom inner wall of the control box 4, the clamping seat 5 is slidably installed in the moving hole 6, and the two clamping seats 5 are adapted, the top of the box 1 Two driving seats 11 are slidably installed on the inner wall of the box body 1. More specifically, two driving grooves 10 are opened on the top inner wall of the box body 1, and the driving seat 11 is slidably connected to the driving grooves 10. The driving grooves 10 can be used to guide the driving seat 11, and the driving seat 11 is fixedly connected to the control box 4. Two driving screws 12 are rotatably installed on the rear inner wall of the box body 1, and the driving seat 11 is threadedly sleeved on the driving screw 12. By providing a clamping seat 5, the clamping seat 5 can achieve the purpose of clamping and fixing the container for placing rare earth neodymium iron boron permanent magnet materials.

[0029] In this embodiment, a driving mechanism is provided in the control box 4, and the driving mechanism is connected to the clamping seat 5. A guide structure is provided between the control box 4 and the box body 1. The driving mechanism includes a stepper motor 8 and a threaded rod 9. The stepper motor 8 is fixedly mounted on an inner wall of one side of the control box 4. A threaded rod 9 is fixedly mounted on the output shaft of the stepper motor 8, and the clamping seat 5 is threadedly sleeved on the threaded rod 9. The threaded rod 9 is provided with two external threads with opposite rotation directions. The clamping seat 5 is provided with an internal threaded hole, and the external thread is meshed with the corresponding internal thread. The threaded rod 9 is provided with two external threads with opposite rotation directions. The rotation of the threaded rod 9 can drive the two clamping seats 5 to move, and the movement of the two clamping seats 5 is in opposite directions.

[0030] In this embodiment, the guide structure 7 includes a T-shaped slot and a T-shaped seat. The T-shaped slot is opened on the inner walls on both sides of the box body 1. T-shaped seats are fixedly installed on both sides of the control box 4, and the T-shaped seat is slidably connected to the T-shaped slot. By providing the T-shaped slot and the T-shaped seat, the control box 4 can be guided, thereby achieving the purpose of stable movement of the control box 4.

[0031] In this embodiment, a shell 13 is fixedly installed on the rear side of the box body 1, and the rear end of the driving screw 12 extends into the shell 13. A driving shaft 15 is rotatably installed on the inner walls of both sides of the shell 13. A rotating motor 17 is fixedly installed on one side of the shell 13, and the output shaft of the rotating motor 17 is fixedly connected to the driving shaft 15. A worm 16 is fixedly installed on the driving shaft 15, and a worm wheel 14 is fixedly installed on the driving screw 12, and the worm 16 is meshed with the corresponding worm wheel 14. The rotating motor 17 can drive the driving shaft 15 and the worm 16 to rotate, and the worm 16 drives the two driving screws 12 to rotate synchronously through the worm wheel 14.

[0032] In the utility model, the rare earth NdFeB permanent magnet material container can be placed by placing the plate 3, and the temperature is increased by the heating mechanism 2, so as to achieve the purpose of microwave high-temperature sintering. After the sintering is completed, by starting the rotating motor 17, the rotating motor 17 can drive the driving shaft 15 and the worm 16 to rotate, and the worm 16 drives the driving screw 12 to rotate through the worm gear 14, and the driving screw 12 can drive the driving seat 11 and the control box 4 to move, and the control box 4 can drive the clamping seat 5 to move to the two sides of the container. By starting the driving motor, the driving motor can drive the threaded rod 9 to move, and the threaded rod 9 can drive the two clamping seats 5 to move in a direction close to each other, and the two clamping seats 5 can achieve the purpose of clamping and fixing the container. At this time, the rotating motor 17 is continued to be started, and the driving screw 12 can drive the control box 4, the clamping seat 5 and the container to move in the direction of the opening of the box body 1, so as to facilitate the removal of the sintered rare earth NdFeB permanent magnet and avoid the high temperature in the box body 1 causing burns to the staff.

[0033] The above is a detailed introduction to a microwave high-temperature sintering device for a rare earth neodymium iron boron permanent magnet provided by the utility model. This article uses specific embodiments to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A microwave high temperature sintering device made of rare earth neodymium iron boron permanent magnet, characterized in that: It comprises a box body (1), a heating mechanism (2), a placement plate (3) and a clamping mechanism, wherein the heating mechanism (2) is mounted on the inner walls on both sides of the box body (1), the placement plate (3) is rotatably mounted on the bottom inner wall of the box body (1), and the clamping mechanism is arranged inside the box body (1); The clamping mechanism comprises a control box (4), a movable hole (6) and a clamping seat (5); the same control box (4) is slidably mounted on the inner walls of both sides of the box body (1); the movable hole (6) is formed on the inner wall of the bottom of the control box (4); a clamping seat (5) is slidably mounted in the movable hole (6), and the two clamping seats (5) are adapted to fit each other; Two drive seats (11) are slidably mounted on the top inner wall of the box body (1), and the drive seats (11) are fixedly connected to the control box (4); two drive screws (12) are rotatably mounted on the rear inner wall of the box body (1), and the drive seats (11) are threadedly sleeved on the drive screws (12).

2. A microwave high temperature sintering device for rare earth NdFeB permanent magnets according to claim 1, characterized in that: A driving mechanism is provided in the control box (4), the driving mechanism is connected to the clamping seat (5), and a guiding structure is provided between the control box (4) and the box body (1).

3. A microwave high temperature sintering device for rare earth NdFeB permanent magnets according to claim 2, characterized in that: The driving mechanism comprises a stepping motor (8) and a threaded rod (9); the stepping motor (8) is fixedly mounted on an inner wall of one side of the control box (4); the threaded rod (9) is fixedly mounted on an output shaft of the stepping motor (8); and the clamping seat (5) is threadedly sleeved on the threaded rod (9).

4. The microwave high temperature sintering device for rare earth NdFeB permanent magnet according to claim 3 is characterized in that: The threaded rod (9) is provided with two external threads with opposite rotation directions, the clamping seat (5) is provided with an internal thread hole, and the external thread is meshed with the corresponding internal thread.

5. The microwave high temperature sintering device for rare earth NdFeB permanent magnet according to claim 2, characterized in that: The guide structure (7) comprises a T-shaped slot and a T-shaped seat, wherein the T-shaped slot is formed on the inner walls of both sides of the box body (1), and the T-shaped seat is fixedly mounted on both sides of the control box (4), and the T-shaped seat is slidably connected to the T-shaped slot.

6. The microwave high temperature sintering device for rare earth NdFeB permanent magnet according to claim 1, characterized in that: A housing (13) is fixedly mounted on the rear side of the box body (1), and the rear end of the driving screw rod (12) extends into the housing (13).

7. A microwave high temperature sintering device for rare earth NdFeB permanent magnets according to claim 6, characterized in that: A driving shaft (15) is rotatably mounted on the inner walls of both sides of the housing (13), a rotating motor (17) is fixedly mounted on one side of the housing (13), and an output shaft of the rotating motor (17) is fixedly connected to the driving shaft (15).

8. The microwave high temperature sintering device for rare earth NdFeB permanent magnet according to claim 7, characterized in that: A worm (16) is fixedly mounted on the driving shaft (15), a worm wheel (14) is fixedly mounted on the driving screw (12), and the worm (16) is meshed with the corresponding worm wheel (14).

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