A NdFeB material modification device

Abstract

This invention relates to the field of NdFeB material modification technology, and more specifically, to a NdFeB material modification device. The container, with a semi-circular bottom, facilitates the placement of U-shaped, annular, or cylindrical NdFeB magnets. When used with two containers, a strip magnet is easily passed through opening I from top to bottom, with its bottom placed in the lower container and its upper side restrained by the upper container. By changing the distance between the two container components, the container components are shaken up and down, altering the contact position between the strip NdFeB magnets and the container. This ensures that the supported position can fully contact the modification liquid. Simultaneously, the container is also repeatedly shaken left and right due to the compression spring, causing other NdFeB magnets within the container to move around, thus shifting the supported position of the NdFeB magnets away from the container and ensuring full contact with the modification liquid. When the container components are detached from the modification tank, the small-amplitude shaking of openings I and II facilitates the drainage of the modification liquid, preventing wear on the NdFeB magnets.

Description

Technical Field

[0001] The invention relates to the technical field of NdFeB material modification, and more specifically to a NdFeB material modification device. Background Art

[0002] There are various methods for modifying NdFeB magnets, aiming to improve the performance of the magnets, such as increasing coercivity, corrosion resistance, Curie temperature and magnetic energy product. These methods cover alloying, grain boundary modification, surface modification, microstructure regulation, composite and powder modification. Each of these methods has its own characteristics, and the appropriate modification method can be selected according to specific application needs and performance requirements.

[0003] NdFeB magnets commonly used in the market generally have the advantages of low cost and suitability for large-scale operations in terms of surface modification. These magnets can be quickly and effectively surface modified by immersing them in a modification liquid in batches. However, in actual operations, for small magnets, due to their small size and light weight, they are often easy to stack or arrange closely in containers during batch processing. This arrangement results in the inability of the magnets to fully contact the modification liquid between the magnets and the contact points between the magnets and the container. The modification liquid cannot effectively penetrate into these areas, resulting in uneven surface modification and even the formation of unmodified blank areas in some areas. Summary of the invention

[0004] The invention provides a NdFeB material modification device, which aims to facilitate the reaction of U-shaped, annular, cylindrical or long strip NdFeB materials with modification liquid to achieve modification.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A NdFeB material modification device comprises a container assembly and a frame assembly;

[0007] The container assembly includes containers arranged in a horizontal linear array, any two adjacent containers are fixedly connected, and also includes a resetter, the resetter includes a base I, a guide column I is slidably connected to the base I, one end of the guide column I away from the base I is fixedly connected to a connecting piece, one end of the guide column I away from the connecting piece is fixedly connected to a clamping portion against the base I, a compression spring is sleeved on the guide column I, the left and right ends of the compression spring are in contact with the connecting piece and the base I respectively, two resetters are arranged in mirror symmetry on the left and right, and the two connecting pieces are fixedly connected to the two containers located at the left and right ends respectively;

[0008] Two container assemblies are arranged in a group and aligned vertically. The two left bases I are slidably connected to the frame assembly so that the container assembly can move longitudinally on the frame assembly. A linear reciprocating drive mechanism is installed on the frame assembly. The two right bases I adjust the longitudinal spacing of a group of container assemblies through the linear reciprocating drive structure.

[0009] An opening I is arranged at the center of the bottom of the container located at the upper layer, and both left and right ends of the opening I extend to the inner wall of the container. An opening II is arranged at the front and rear sides of the bottom of the container located at the lower layer.

[0010] The inner space of the container comprises a semi-cylindrical space at the bottom and a rectangular space communicating with the top of the semi-cylindrical space.

[0011] The container is made of stainless steel or engineering plastic.

[0012] The frame assembly comprises: a lifter, the lower end of which is fixedly connected to the frame, the left end of which is fixedly connected to two vertical guide pillars III, and the entire base I located on the left side is slidably connected to the two guide pillars III.

[0013] The frame assembly also includes two horizontal guide columns IV fixedly connected to the right end of the frame, the linear reciprocating drive mechanism includes a motor fixedly connected to the frame, one end of a connecting rod II is fixedly connected to the output shaft of the motor, and a shift rod is installed on the other end of the connecting rod II. It also includes a base II, which is slidably connected to the two guide columns IV, a notch is provided above the right end of the base II, and the shift rod is inserted into the notch, one end of two connecting rods I is hinged on the base II, and the other ends of the two connecting rods I are respectively hinged to two bases I located on the upper and lower layers on the right side.

[0014] The lifter is an electric cylinder or a hydraulic cylinder, the movable end of the lifter is arranged downward, and the movable end of the lifter is fixedly connected to the upper end of the frame.

[0015] The height of the motor is higher than the container assembly.

[0016] The motor has a holding brake function.

[0017] The shift lever is rotatably connected to the connecting rod II through a bearing.

[0018] The beneficial effects of the NdFeB material modification device of the present invention are:

[0019] The container is convenient for placing U-shaped, annular or cylindrical NdFeB magnets. When the upper and lower containers are used together, it is convenient to pass the strip magnet from top to bottom through opening I. The bottom of the strip magnet is placed in the lower container, and the upper side of the strip magnet is limited by the upper container. By changing the spacing between the two container components, the container components are shaken up and down, and the contact position between the strip NdFeB magnet and the container changes, so that the supported position can also fully contact the modified liquid. At the same time, the container can also be repeatedly shaken left and right due to the compression spring, so that the NdFeB magnets of other shapes in the container shake in the container, so that the supported position of the NdFeB magnet is staggered from the container and fully contacted with the modified liquid. The container component is separated from the modified pool, and the openings I and II are shaken slightly to facilitate the leaching of the modified liquid, which can avoid wear of the NdFeB magnet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of a NdFeB material modification device;

[0021] Figure 2 is a perspective view of a container assembly;

[0022] Figure 3 is a schematic diagram of the structure of the container and the opening Ⅰ;

[0023] Figure 4 It is a schematic diagram of the structure of the container and the opening II;

[0024] Figure 5 for Figure 2 A partial enlarged view of

[0025] Figure 6 for Figure 1 A partial enlarged view of

[0026] Figure 7 It is a three-dimensional diagram of the base II, connecting rod I and the notch;

[0027] Figure 8 A three-dimensional diagram of a frame assembly and a linear reciprocating drive mechanism;

[0028] Fig. 9 for Figure 8 A partial enlarged view of .

[0029] In the figure: container 101; opening I102; opening II103; connecting piece 104; base I201; guide column I202; clamping part 203; lifter 301; frame 302; guide column III303; guide column IV304; motor 305; connecting rod II306; lever 307; base II401; connecting rod I402; notch 403. DETAILED DESCRIPTION

[0030] A NdFeB material modification device includes a container assembly, wherein the container assembly includes containers 101 arranged in a linear array from left to right, the containers 101 are open at the top, and the internal space of the containers 101 includes a semi-cylindrical space at the bottom and a rectangular space connected to the top of the cylindrical space. Such an internal space is convenient for placing U-shaped, annular or cylindrical NdFeB. Any two adjacent containers 101 are fixedly connected, and in fact, any two adjacent containers 101 can also be fixedly connected together through a structure such as a connector 104.

[0031] Further, the container assembly also includes a resetter, and two resetters are provided in mirror symmetry on the left and right. For ease of description, refer to Figure 5For example, the resetter located on the right side includes a base Ⅰ201, and two guide pillars Ⅰ202 are slidably connected to the base Ⅰ201. The left ends of the two guide pillars Ⅰ202 are fixedly connected to the same connecting piece 104, and the right ends of the guide pillars Ⅰ202 are fixedly connected to a clamping portion 203 that rests on the base Ⅰ201. A compression spring is sleeved on the guide pillar Ⅰ202, and the left and right ends of the compression spring are respectively in contact with the connecting piece 104 and the base Ⅰ201, and the two connecting pieces 104 are respectively fixedly connected to the two containers 101 located at the left and right ends; two container assemblies are grouped as a group, and are aligned one above and one below.

[0032] Preferably, an opening I102 is provided at the center of the bottom of the upper container 101, and both left and right ends of the opening I102 extend to the inner wall of the container 101, and an opening II103 is provided at the front and back sides of the bottom of the lower container 101. This facilitates the insertion of the bar magnet through the opening I102 from top to bottom, with the bottom of the bar magnet placed in the lower container 101 and the upper side of the bar magnet being limited by the upper container 101.

[0033] refer to Figure 8 The NdFeB material modification device also includes a frame assembly and a linear reciprocating drive mechanism. The frame assembly includes: a lifter 301, the movable end of the lifter 301 is set downward, and a frame 302 is fixed to the movable end of the lifter 301. The left end of the frame 302 is fixed to two vertical guide pillars III 303, and the two bases I201 on the left side are slidably connected to the two guide pillars III 303. The right end of the frame 302 is fixed to two horizontal guide pillars IV 304.

[0034] To further illustrate, the linear reciprocating drive mechanism includes a motor 305 fixedly connected to the frame 302, the output shaft of the motor 305 is arranged rearward, one end of a connecting rod Ⅱ 306 is fixedly connected to the output shaft of the motor 305, and the other end of the connecting rod Ⅱ 306 is rotatably connected to a lever 307, and also includes a base Ⅱ 401, the base Ⅱ 401 is slidably connected to two guide columns IV 304, a slot 403 is arranged above the right end of the base Ⅱ 401, the lever 307 is inserted into the slot 403, one end of two connecting rods Ⅰ 402 is hinged on the base Ⅱ 401, and the other ends of the two connecting rods Ⅰ 402 are respectively hinged on two bases Ⅰ 201 located on the upper and lower layers on the right side, the initial installation positions of the two connecting rods Ⅰ 402 are in an eight-shape, and the two connecting rods Ⅰ 402 are arranged in mirror symmetry up and down.

[0035] During operation, a mixed solution of phosphoric acid and soluble phosphate is prepared in the modification tank, and other additives such as corrosion inhibitors and promoters can be added to form a modification solution to optimize the film-forming effect. The position of the lifter 301 is fixed, or the position is adjusted by other displacement mechanisms. The lifter 301 is used to adjust the height of the frame 302 and the overall height of the container assembly, so that the container assembly is sent from a high place into the modification tank for phosphate treatment, so that the surface of the magnet reacts with phosphate ions in the solution to form a phosphate film. When the container assembly is in the modification tank, the motor 305 is started, the output shaft of the motor 305 drives the connecting rod II 306 to rotate, the connecting rod II 306 drives the lever 307 to rotate around the output shaft of the motor 305, and the lever 307 drives the base II 401 to reciprocate left and right. When the base II 401 moves to the left, the left distance between the two connecting rods I 402 increases to open, thereby increasing the distance between the upper and lower container assemblies. When the base II 401 moves to the right, the distance between the upper and lower container assemblies decreases, causing the container assembly to shake up and down, and the strip NdFeB and the container The contact position of 101 changes, so that the supported position can also fully contact with the modified liquid. At the same time, the container 101 can also be repeatedly shaken left and right due to the compression spring, so that the NdFeB of other shapes in the container 101 shakes in the container 101, so that the supported position of the NdFeB is staggered with the container 101 and fully contacts with the modified liquid. Finally, the motor 305 is stopped. After the reaction is completed, the lifter 301 drives the frame 302 to rise, and the container assembly is separated from the modified tank. Then the motor 305 is repeatedly started to complete the leaching. This scheme is convenient for loading NdFeB of different shapes, and is used to carry a large amount of NdFeB into the modified tank, so that each position of the NdFeB fully reacts with the modified liquid. After carrying the NdFeB out of the modified tank, the openings Ⅰ102 and Ⅱ103 are shaken slightly to facilitate the leaching of the modified liquid, which can avoid the wear of the NdFeB. In fact, oxalate treatment can also be carried out without restriction.

Claims

1. A NdFeB material modification device, characterized in that: including a container assembly and a rack assembly; The container assembly comprises containers (101) arranged in a horizontal linear array, any two adjacent containers (101) being fixedly connected, and further comprising a resetter, the resetter comprising a base I (201), a guide column I (202) being slidably connected to the base I (201), an end of the guide column I (202) away from the base I (201) being fixedly connected to a connecting piece (104), an end of the guide column I (202) away from the connecting piece (104) being fixedly connected to a clamping portion (203) abutting against the base I (201), a compression spring being sleeved on the guide column I (202), the left and right ends of the compression spring being in contact with the connecting piece (104) and the base I (201) respectively, two resetters being arranged in mirror symmetry on the left and right, and the two connecting pieces (104) being fixedly connected to the two containers (101) located at the left and right ends respectively; Two container assemblies form a group and are aligned vertically. Two left bases I (201) are slidably connected to the frame assembly so that the container assembly can move longitudinally on the frame assembly. A linear reciprocating drive mechanism is installed on the frame assembly. The two right bases I (201) adjust the longitudinal spacing of a group of container assemblies through the linear reciprocating drive structure. An opening I (102) is provided at the center of the bottom of the container (101) located at the upper layer, and both left and right ends of the opening I (102) extend to the inner wall of the container (101), and an opening II (103) is provided at the front and rear sides of the bottom of the container (101) located at the lower layer; The frame assembly comprises: a lifter (301), the lower end of the lifter (301) is fixedly connected to a frame (302), the left end of the frame (302) is fixedly connected to two vertical guide pillars III (303), and the entire base I (201) located on the left side is slidably connected to the two guide pillars III (303); The frame assembly also includes two horizontal guide pillars IV (304) fixedly connected to the right end of the frame (302), the linear reciprocating drive mechanism includes a motor (305) fixedly connected to the frame (302), one end of a connecting rod II (306) fixedly connected to the output shaft of the motor (305), and a lever (307) installed on the other end of the connecting rod II (306), and also includes a base II (401), the base II (401) is slidably connected to the two guide pillars IV (304), a notch (403) is provided above the right end of the base II (401), the lever (307) is inserted into the notch (403), one end of two connecting rods I (402) is hinged on the base II (401), and the other ends of the two connecting rods I (402) are respectively hinged to two bases I (201) located on the upper and lower layers on the right side.

2. The NdFeB material modification device according to claim 1, characterized in that: The internal space of the container (101) comprises a semi-cylindrical space at the bottom and a rectangular space connected to the top of the semi-cylindrical space.

3. The NdFeB material modification device according to claim 1, characterized in that: The container (101) is made of stainless steel or engineering plastics.

4. The NdFeB material modification device according to claim 1, characterized in that: The lifter (301) is an electric cylinder or a hydraulic cylinder. The movable end of the lifter (301) is arranged downward, and the movable end of the lifter (301) is fixedly connected to the upper end of the frame (302).

5. The NdFeB material modification device according to claim 1, characterized in that: The height of the motor (305) is higher than the container assembly.

6. The NdFeB material modification device according to claim 1, characterized in that: The motor (305) has a brake function.

7. The NdFeB material modification device according to claim 1, characterized in that: The shifting rod (307) is rotatably connected to the connecting rod II (306) via a bearing.

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