Neodymium-iron-boron sintered magnet surface plating device

Abstract

The utility model relates to the neodymium iron boron magnet surface electroplating technical field, concretely relates to a kind of magnet surface electroplating device for neodymium iron boron sintering, including bottom plate, electroplating bath, electric sliding rail, electric push rod, mounting plate, hanging material rack and neodymium iron boron magnet, the parallelism of multiple electroplating baths is provided in the top of bottom plate, electric sliding rail is also provided on bottom plate, the slider of electric sliding rail is equipped with electric push rod, the free end of electric push rod is connected with mounting plate, and mounting plate bottom is rotatably provided with hanging material rack, and hanging material rack is uniformly provided with hanging rod with the circumferential interval of its connection with mounting plate as center, and hanging rod is misalignedly provided with hanging hook, and neodymium iron boron magnet is hung on the hanging hook of hanging material rack.By the collaborative control of electric sliding rail and electric push rod, the automatic lifting, translation and multi-slot switching of neodymium iron boron magnet are realized, and thus the efficient electroplating operation to neodymium iron boron magnet is realized.

Description

Technical Field

[0001] This utility model relates to the field of electroplating technology for NdFeB magnet surfaces, specifically to an electroplating device for NdFeB sintering magnet surfaces. Background Technology

[0002] Neodymium iron boron (NdFeB) permanent magnets are widely used in motors, electronic devices, and medical equipment due to their excellent magnetic properties. During the production of NdFeB magnets, a protective metal coating (such as nickel, copper, or zinc) is typically electroplated onto their surface to improve their corrosion resistance, wear resistance, and oxidation resistance.

[0003] In existing technologies, neodymium iron boron magnets are typically suspended on a hanging rod and then immersed in an electroplating bath. This process relies heavily on manual operation and monitoring, resulting in low electroplating efficiency and susceptibility to human error, making it difficult to maintain the stability and consistency of the electroplating process. Secondly, due to the complex surface shape of neodymium iron boron magnets, uneven local current density is prone to occur during electroplating, leading to inconsistent coating thickness and affecting the performance of the magnets.

[0004] Therefore, it is necessary to design a surface electroplating device for NdFeB sintering magnets that requires less manual intervention, has high electroplating efficiency, and produces uniform electroplating, so as to achieve uniform and efficient electroplating of NdFeB magnets. Utility Model Content

[0005] The technical solution is as follows: A surface electroplating device for NdFeB sintering magnets includes a base plate, an electroplating tank, an electric slide rail, an electric push rod, a mounting plate, a hanging rack, and NdFeB magnets. Multiple electroplating tanks are arranged side-by-side on the top of the base plate. An electric slide rail is also provided on the base plate. An electric push rod is mounted on the slider of the electric slide rail. The free end of the electric push rod is connected to the mounting plate. A hanging rack is rotatably mounted on the bottom of the mounting plate. The hanging rack has hanging rods evenly spaced around its connection point with the mounting plate. Hanging hooks are staggered on the hanging rods. NdFeB magnets are hung on the hanging hooks of the hanging rack. The electric slide rail drives the electric push rod to move horizontally. The electric push rod retracts to immerse the NdFeB magnets suspended on the hanging hooks of the hanging rack into the electroplating tank for electroplating. The electric push rod extends to remove the NdFeB magnets immersed in the electroplating tank.

[0006] Furthermore, a support plate is provided on the top of the mounting plate, and a motor is mounted on the support plate. The output shaft of the motor passes through the mounting plate and is connected to the hanging frame.

[0007] Furthermore, a fan is installed on the outer wall of the electroplating tank. The fan is located above the opening at the top of the electroplating tank. The exhaust pipe at the tail of the fan is connected to the purification box set on the bottom plate through a connecting pipe. The fan extracts the gas generated during the electroplating operation when the neodymium iron boron magnet is immersed in the electroplating tank.

[0008] Furthermore, activated carbon blocks are movably installed at the opening of the purification chamber. These activated carbon blocks are used to adsorb harmful components in the gas discharged from the connecting pipe.

[0009] Furthermore, a limiting groove is provided on the inner wall of the purification box opening to allow the activated carbon block to slide and to limit its movement.

[0010] Furthermore, a filter is installed at the air intake of the fan.

[0011] The beneficial effects are as follows: 1. Through the coordinated control of electric slide rails and electric push rods, the automatic lifting, translation and multi-slot switching of NdFeB magnets can be realized, thereby achieving efficient electroplating of NdFeB magnets with less manual intervention and high electroplating efficiency.

[0012] 2. The motor drives the hanging rack to rotate at a constant speed, causing the NdFeB magnets to oscillate dynamically in the plating solution. This enhances the fluidity and ion exchange of the plating solution, effectively preventing excessive local deposition and improving the uniformity and adhesion of the coating.

[0013] 3. The exhaust gas treatment system is formed by the fan and the purification box, which promptly extracts and discharges the harmful gases generated by electroplating. After the particulate matter is intercepted by the filter, the harmful components are adsorbed by the activated carbon, which significantly reduces environmental pollution. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention from a first-person perspective.

[0015] Figure 2 This is a partial three-dimensional structural diagram from a first-view perspective of the present invention.

[0016] Figure 3 This is a three-dimensional structural diagram of the present invention from a second perspective.

[0017] Figure 4 This is a three-dimensional structural diagram of the purification box, activated carbon block, and limiting groove of this utility model.

[0018] The parts and their numbers in the diagram are as follows: 1_Base plate, 2_Electroplating tank, 3_Electric slide rail, 4_Electric push rod, 5_Mounting plate, 6_Hanging rack, 61_NdFeB magnet, 7_Support plate, 8_Motor, 9_Fan, 10_Connecting pipe, 11_Filter screen, 12_Purification box, 13_Activated carbon block, 14_Limiting groove. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0020] Example: An electroplating apparatus for the surface of NdFeB sintered magnets, such as... Figure 1 and Figure 2As shown, the system includes a base plate 1, an electroplating tank 2, an electric slide rail 3, an electric push rod 4, a mounting plate 5, a hanging rack 6, and a neodymium iron boron magnet 61. Multiple electroplating tanks 2 are arranged side-by-side on the top of the base plate 1, each capable of holding different plating solutions (e.g., pre-plating, main plating, post-treatment). An electric slide rail 3 is also mounted on the base plate 1, with an electric push rod 4 mounted on its slider. The free end of the electric push rod 4 is connected to the mounting plate 5. A hanging rack 6 is rotatably mounted on the bottom of the mounting plate 5. The hanging rack 6 has four hanging rods evenly spaced circumferentially around its connection point with the mounting plate 5. The hanging rack 6 and the mounting plate 5 are detachable and can be adjusted as needed. The hanging rack 6 is equipped with different numbers of hanging rods to meet the needs of electroplating. The hanging rods are staggered with hanging hooks. The neodymium iron boron magnets 61 are hung on the hanging hooks of the hanging rack 6. The electric slide rail 3 drives the electric push rod 4 to move horizontally. The electric push rod 4 retracts to immerse the neodymium iron boron magnets 61 suspended on the hanging hooks of the hanging rack 6 into the electroplating tank 2 for electroplating. The staggered design of the hanging hooks effectively avoids contact between the neodymium iron boron magnets 61, thereby ensuring that the electroplating solution fully contacts the surface, while reducing the problem of uneven plating caused by the neodymium iron boron magnets 61 blocking each other. When the electric push rod 4 extends upward, it takes away the neodymium iron boron magnets 61 immersed in the electroplating tank 2.

[0021] like Figure 2 As shown, a support plate 7 is provided on the top of the mounting plate 5, and a motor 8 is installed on the support plate 7. The output shaft of the motor 8 passes through the mounting plate 5 and is connected to the hanging rack 6. The motor 8 drives the hanging rack 6 to rotate at a constant speed, so that the neodymium iron boron magnet 61 oscillates dynamically in the plating solution, thereby enhancing the fluidity of the plating solution and ion exchange, thus avoiding excessive local deposition and improving the uniformity of the coating.

[0022] In use, the neodymium iron boron magnet 61 is suspended from the hanging rod of the hanging frame 6 by a staggered hook. The staggered design of the hook avoids contact between the magnets, ensuring that the electroplating solution fully contacts the surface, while reducing uneven plating caused by mutual obstruction of the magnets. The electric slide rail 3 drives the slider to move horizontally, moving the electric push rod 4 and the mounting plate 5 to above the target electroplating tank 2. Subsequently, the electric push rod 4 retracts, thereby pushing the mounting plate 5 and the hanging frame 6 to descend, so that the neodymium iron boron magnet 61 suspended on the hanging frame 6 is completely immersed in the plating solution in the electroplating tank 2, thus achieving the plating of the neodymium iron boron magnet. The electroplating of the neodymium iron boron magnet 61 is carried out simultaneously. The motor 8 drives the hanging rack 6 to rotate evenly, so that the neodymium iron boron magnet 61 oscillates dynamically in the plating solution, further enhancing the fluidity and ion exchange of the plating solution, avoiding excessive local deposition, and improving the uniformity of the plating layer. After electroplating, the electric push rod 4 extends, thereby lifting the mounting plate 5 and the hanging rack 6 upward, thus lifting the neodymium iron boron magnet 61 out of the liquid surface. The electric push rod 4 is driven by the electric slide rail 3 to move horizontally, thereby transporting the neodymium iron boron magnet 61 to the next process, such as cleaning, passivation, and sealing treatment.

[0023] like Figure 1 and Figure 3 As shown, a fan 9 is installed on the outer wall of the electroplating tank 2. The fan 9 is located above the top opening of the electroplating tank 2. The exhaust pipe at the tail of the fan 9 is connected to the purification box 12 set on the bottom plate 1 through the connecting pipe 10. The fan 9 is a centrifugal fan. A filter screen 11 is installed at the air inlet of the fan 9. The filter screen 11 is used to intercept particulate matter. When the neodymium iron boron magnet 61 is immersed in the electroplating tank 2 for electroplating, harmful gases will be generated. When the fan 9 is working, the fan 9 will extract the gas generated during the electroplating operation of the neodymium iron boron magnet 61 immersed in the electroplating tank 2 and transport it to the purification box 12 through the connecting pipe 10.

[0024] like Figure 3 and Figure 4 As shown, an activated carbon block 13 is movably disposed at the opening of the purification box 12. The activated carbon block 13 is used to adsorb harmful components of the gas discharged from the connecting pipe 10. A limiting groove 14 is provided on the inner wall of the opening of the purification box 12 to allow the activated carbon block 13 to slide and limit its movement. The setting of the limiting groove 14 not only effectively limits the activated carbon block 13, but also provides convenience for the replacement of the activated carbon block 13.

[0025] During the electroplating process, when the neodymium iron boron magnet 61 is immersed in the electroplating tank 2, harmful gases (such as acid mist and volatile organic compounds) generated by it are emitted upward from the top opening of the electroplating tank 2. At this time, the fan 9 can extract the harmful gases. After the harmful gases are intercepted by the filter screen 11 and solid particles, they enter the purification box 12 through the connecting pipe 10. The purification box 12 works together with the activated carbon block 13 to adsorb and purify the harmful components in the gas entering the purification box 12. The purified gas is discharged from the outlet, thereby protecting the environment.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A surface electroplating apparatus for NdFeB sintering magnets, comprising a base plate (1) and electroplating tanks (2), wherein multiple electroplating tanks (2) are arranged side-by-side on the top of the base plate (1), characterized in that, An electric slide rail (3) is also provided on the base plate (1). An electric push rod (4) is installed on the slider of the electric slide rail (3). The free end of the electric push rod (4) is connected to the mounting plate (5). A hanging rack (6) is rotatably provided at the bottom of the mounting plate (5). Hanging rods are evenly spaced around the connection point between the hanging rack (6) and the mounting plate (5). Hanging hooks are staggered on the hanging rods. Neodymium iron boron magnets (61) are hung on the hanging hooks of the hanging rack (6). The electric slide rail (3) drives the electric push rod (4) to move horizontally. The electric push rod (4) retracts to immerse the neodymium iron boron magnets (61) suspended on the hanging hooks of the hanging rack (6) into the electroplating tank (2) for electroplating. The electric push rod (4) extends to take away the neodymium iron boron magnets (61) immersed in the electroplating tank (2).

2. The electroplating apparatus for the surface of a NdFeB sintering magnet according to claim 1, characterized in that, The mounting plate (5) has a support plate (7) on top, and a motor (8) is mounted on the support plate (7). The output shaft of the motor (8) passes through the mounting plate (5) and connects to the hanging rack (6).

3. The electroplating apparatus for the surface of a NdFeB sintering magnet according to claim 2, characterized in that, A fan (9) is installed on the outer wall of the electroplating tank (2). The fan (9) is located above the top opening of the electroplating tank (2). The exhaust pipe at the tail of the fan (9) is connected to the purification box (12) set on the bottom plate (1) through the connecting pipe (10). The fan (9) extracts the gas generated during the electroplating operation of the neodymium iron boron magnet (61) immersed in the electroplating tank (2).

4. The electroplating apparatus for the surface of a NdFeB sintering magnet according to claim 3, characterized in that, An activated carbon block (13) is movably installed at the opening of the purification box (12). The activated carbon block (13) is used to adsorb harmful components of the gas discharged from the connecting pipe (10).

5. The electroplating apparatus for the surface of a NdFeB sintering magnet according to claim 4, characterized in that, A limiting groove (14) is provided on the inner wall of the opening of the purification box (12) for the activated carbon block (13) to slide and limit its movement.

6. The electroplating apparatus for the surface of a NdFeB sintering magnet according to claim 5, characterized in that, A filter (11) is provided at the air inlet of the fan (9).

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