NdFeB processing device and processing technology

Abstract

The invention relates to the technical field of NdFeB processing, and specifically, to a NdFeB processing device and a processing technology; the device comprises a forming seat capable of accommodating a plurality of tile-shaped NdFeB blanks; a plurality of receiving grooves are arranged on the side of the forming seat, and the tile-shaped NdFeB blanks are placed in the receiving grooves; a process of using the NdFeB processing device to process NdFeB comprises the following steps: step one: filling the plurality of receiving grooves on the side of the forming seat with the tile-shaped NdFeB blanks; step two: standing until the tile-shaped NdFeB blanks are solidified; the present application uses a container that directly accommodates a plurality of tile-shaped NdFeB blanks, firstly uniformly mixes NdFeB powder with a binder such as resin, plastic or low-melting-point metal, squeezes the blanks into the container, and then stands until the tile-shaped NdFeB blanks are solidified, so as to obtain a tile-shaped NdFeB product whose shape is embedded with the inner wall of the container, so that the size and precision of the product can be closer to the requirements, thereby reducing the processing demand for further surface finishing operations.

Description

Technical Field

[0001] The invention relates to the technical field of NdFeB processing, in particular to a NdFeB processing device and a processing technology. Background Art

[0002] NdFeB usually refers to neodymium magnets, which are tetragonal crystals formed by neodymium, iron and boron. Neodymium magnets are a type of permanent magnet made from rare earths and are widely used in electronic products such as mobile phones, hard drives and headphones, as well as in electrical machinery products such as permanent magnet motors, speakers and magnetic separators.

[0003] The most commonly used neodymium magnets are divided into bonding and sintering. Bonded NdFeB is corrosion-resistant and magnetic in all directions; while sintered NdFeB is susceptible to corrosion and requires a coating on the surface, usually galvanized.

[0004] Among them, for some special workpieces, such as the processing of thinner tile-shaped neodymium magnets, wire cutting or grinding equipment is often used. The workpieces formed by the above two methods are further trimmed to meet the precision requirements of the shape and size of the tile-shaped neodymium magnets, but the processing steps are relatively cumbersome. Summary of the invention

[0005] In order to achieve the purpose of reducing the processing requirements for further surface finishing operations on the tile-shaped neodymium magnet after the forming process is completed, the present invention adopts the following technical solutions:

[0006] The object of the present invention is to provide a container which can directly accommodate a plurality of tile-shaped NdFeB blanks. NdFeB powder is firstly uniformly mixed with a binder such as resin, plastic or low melting point metal, and the blanks are squeezed into the container and then left to stand until the tile-shaped NdFeB blanks are solidified, thereby obtaining a tile-shaped NdFeB product whose shape is embedded in the inner wall of the container, so that the size and precision of the product can be closer to the requirements, thereby reducing the processing requirements for further surface finishing operations.

[0007] In order to achieve the above-mentioned object, the present invention provides a NdFeB processing device, comprising a forming seat capable of accommodating a plurality of tile-shaped NdFeB blanks;

[0008] The forming seat is a columnar structure, and a plurality of receiving grooves are arranged on the side of the forming seat, and the tile-shaped NdFeB blanks are placed in the receiving grooves.

[0009] The tile-shaped NdFeB blank of the present application is formed by fully mixing NdFeB powder with a binder such as plastic powder or resin powder or a low-melting-point metal and then bonding them.

[0010] After the tile-shaped NdFeB blank is solidified in the containing tank, it can be further sintered according to the requirements of the use strength.

[0011] The process of using the above-mentioned NdFeB processing device to process NdFeB includes the following steps:

[0012] Step 1: Fill the tile-shaped NdFeB blank into the multiple receiving grooves on the side of the forming seat;

[0013] Step 2: Let the tile-shaped NdFeB blank stand until it solidifies in the receiving tank;

[0014] Step 3: Take out the formed tile-shaped semi-finished product from the receiving tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following drawings are intended only to illustrate and explain the present invention, wherein:

[0016] Figure 1 The present invention is a process flow chart of using a NdFeB processing device to process NdFeB;

[0017] Figure 2 It is a schematic structural diagram of the tile-shaped NdFeB blank of the present invention;

[0018] Figure 3 The structure diagram of the NdFeB processing device of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 4 The structure diagram of the NdFeB processing device of the present invention is shown in FIG. Figure 2 ;

[0020] Figure 5 The structure diagram of the NdFeB processing device of the present invention is shown in FIG. Figure 3 ;

[0021] Figure 6 The structure diagram of the NdFeB processing device of the present invention is shown in FIG. Figure 4 ;

[0022] Figure 7 The structure diagram of the NdFeB processing device of the present invention is shown in FIG. Figure 5 ;

[0023] Figure 8 The structure diagram of the NdFeB processing device of the present invention is shown in FIG. Figure 6 ;

[0024] Fig. 9 The structure diagram of the NdFeB processing device of the present invention is shown in FIG. Figure 7 ;

[0025] Fig.10 The structure diagram of the NdFeB processing device of the present invention is shown in FIG. Figure 8 .

[0026] In the figure: tile-shaped NdFeB blank 1; forming seat 11; containing groove 12; perforation 13; hollow block 14; limit swivel 15; extension tube 16; insertion rod 17; pushing arm 21; T-shaped column 22; synchronous control rod 23; connecting rod 24; slot 25; handle I 26; bracket 31; insertion pile 32; filling hopper 41; sealing tube 42; extrusion feeder 43; filling pipe 44; handle II 45; telescopic drive 46. DETAILED DESCRIPTION

[0027] In order to reduce the need for further surface finishing operations on the tile-shaped neodymium magnet after the molding process is completed, the present invention provides a neodymium iron boron processing device, the device body is a molding seat 11, and the side of the molding seat 11 is provided with a plurality of accommodating grooves 12 that can accommodate the tile-shaped neodymium iron boron blank 1.

[0028] The specific embodiments of the present invention are described below.

[0029] Reference Figure 2-4 and Figure 6 As shown, it is explained that during the NdFeB processing device provided by the present invention performs NdFeB processing, after the tile-shaped NdFeB blank 1 is placed in the receiving groove 12, an embodiment can directly have a certain curvature:

[0030] The forming seat 11 of the present application is a cylindrical structure, and the depth of the multiple receiving grooves 12 arranged on the side of the forming seat 11 is uniformly set, so that after the tile-shaped NdFeB blank 1 is placed in the receiving groove 12, it can directly have a certain bending curvature, so that the size and precision of the product can be closer to the requirements, thereby reducing the processing needs for further surface finishing operations.

[0031] The tile-shaped NdFeB blank 1 of the present application can be formed by mixing NdFeB powder and plastic powder and bonding them together; resin powder or other types of binders can also be added to the mixed powder to increase the curing effect of the tile-shaped NdFeB blank 1;

[0032] According to the requirements of the product's use intensity, after the tile-shaped NdFeB blank is completely solidified in the containing tank, it can be further sintered;

[0033] The bottom of the forming seat 11 is connected with a hollow block 14, and the hollow block 14 can be plugged with an insertion pile 32 installed on the top of the bracket 31, and a plurality of insertion piles 32 are provided;

[0034] The hollow block 14 is plugged and connected with the insert pile 32 so that the bracket 31 can stably support the forming seat 11 so as to perform static processing and sintering processing on the tile-shaped NdFeB blank 1.

[0035] Reference Figure 4-8As shown, an embodiment of pushing out and taking out the tile-shaped NdFeB product solidified and formed in the containing groove 12 during the NdFeB processing process performed by the NdFeB processing device provided by the present invention is described:

[0036] A through hole 13 is provided at a position corresponding to the accommodating groove 12 on the side of the forming seat 11 of the present application, and a pushing arm 21 is horizontally slidably installed in the through hole 13. The arc surface at the end of the pushing arm 21 can simultaneously abut against the inner side surface of the tile-shaped NdFeB blank 1 and the accommodating groove 12.

[0037] The push arm 21 can be controlled by setting an electric telescopic rod inside the forming seat 11. By controlling the sliding of the push arm 21, the tile-shaped NdFeB product solidified and formed in the receiving groove 12 can be pushed out and taken out.

[0038] Reference Figure 5-8 As shown, an embodiment of synchronously controlling the movement of multiple push arms 21 during the NdFeB processing process performed by the NdFeB processing device provided by the present invention is described:

[0039] The columnar body of the forming seat 11 of the present application is provided with a hollow structure inside, a plurality of limit rotating rings 15 are fixedly installed on the forming seat 11, a synchronization control rod 23 is rotatably installed between the plurality of limit rotating rings 15, a T-shaped column 22 is provided on the pushing arm 21, and the synchronization control rod 23 is hingedly connected to the T-shaped column 22 through a connecting rod 24.

[0040] The rotation center of the synchronous control rod 23 is coaxially arranged with the arc center of the forming seat 11;

[0041] During the rotation of the synchronous control rod 23, the connecting rod 24 drives the end of the T-shaped column 22 to move, so that the multiple pushing arms 21 synchronously slide horizontally in the forming seat 11 to push out and remove the tile-shaped NdFeB product solidified in the receiving groove 12.

[0042] The synchronous control rod 23 is used to replace the electric telescopic rod to control the movement of the push arm 21, so that the forming seat 11 and a plurality of tile-shaped NdFeB blanks 1 can be sent into the calcining furnace for calcining treatment together, thereby avoiding damage to the electronic equipment.

[0043] Reference Figure 6-8 As shown, an embodiment of positioning control of the position of the synchronous control rod 23 during the NdFeB processing process performed by the NdFeB processing device provided by the present invention is described:

[0044] A handle Ⅰ26 is detachably mounted on the top of the synchronization control rod 23 of the present application, and the rotation angle of the synchronization control rod 23 is adjusted by the handle Ⅰ26 .

[0045] Among them, a slot 25 is set on the synchronous control rod 23, and the slot 25 is plugged into the plug rod 17 connected to the inner side of the extension tube 16. The slot 25 and the plug rod 17 can be connected by gap fitting or installing an electromagnet component for adsorption, so as to position the synchronous control rod 23.

[0046] Reference Fig. 9 As shown, an embodiment of the NdFeB processing device provided by the present invention is used to perform a filling operation in the containing tank 12 using a filling hopper 41 during the NdFeB processing process:

[0047] A filling hopper 41 is vertically slidably installed on the outer side of the forming seat 11 of the present application, and a sealing cylinder 42 is connected to the lower end of the filling hopper 41. The inner side surface of the sealing cylinder 42 abuts and fits against the outer side of the forming seat 11. A handle Ⅱ45 is installed on the filling hopper 41. The position of the filling hopper 41 is controlled by using the handle Ⅱ45. The filling hopper 41 can be slid out from the upper side of the forming seat 11 for removal.

[0048] The vertical height of the sealing cylinder 42 is higher than the vertical height of the containing tank 12 , so that the NdFeB powder and binder mixture in the filling hopper 41 will not leak out from the containing tank 12 at the lower side.

[0049] In addition, an extension tube 16 is fixedly mounted on the top of the forming seat 11 , and the inner side surface of the sealing tube 42 abuts against the outer side of the extension tube 16 , so that the filling hopper 41 can perform filling operations on the containing tank 12 located at the top.

[0050] Reference Figure 9-10 As shown, it is explained that in the process of NdFeB processing by the NdFeB processing device provided by the present invention, an extrusion feeder 43 is added to improve the filling effect of the mixture of NdFeB powder and binder:

[0051] The filling hopper 41 of the present application is provided with an extrusion feeder 43 which is vertically slidably mounted therein; a telescopic driver 46 for driving the extrusion feeder 43 to move vertically is mounted on the handle II 45;

[0052] The telescopic drive of the present application can be an electric telescopic rod or a hydraulic cylinder. The telescopic drive 46 is started to drive the extrusion feeder 43 to move vertically, and the NdFeB powder and binder mixture is extruded to increase the filling effect and compaction effect into the containing tank 12.

[0053] A material pressing area is formed between the filling hopper 41 and the extrusion feeder 43. The extrusion feeder 43 is slidably connected to the outer side surfaces of the forming seat 11 and the extension tube 16. The extrusion feeder 43 is annular as a whole, and the height of the extrusion feeder 43 is higher than the vertical height of the containing tank 12 to prevent material leakage.

[0054] The outer bottom of the extrusion feeder 43 is provided with an inclined surface, and the outer bottom of the extrusion feeder 43 can be fully abutted and connected with the inner lower end of the filling hopper 41, so that the device can fully discharge the material during the filling operation of the multiple containing tanks 12.

[0055] A feeding channel is provided on the extrusion feeder 43 , a feeding pipe 44 is installed on the upper side of the extrusion feeder 43 through a flange component, the feeding pipe 44 is connected to the feeding channel, the feeding pipe 44 is connected to the mixing container, and a valve is provided on the feeding pipe 44 .

[0056] Reference Fig. 9 As shown, it illustrates Example I of discharging the air originally existing in the containing tank 12 during the NdFeB processing process performed by the NdFeB processing device provided by the present invention:

[0057] The extrusion feeder 43 of the present application is also provided with an exhaust channel, an exhaust pipe is installed on the upper side of the extrusion feeder 43 through a flange component, the exhaust pipe is connected to the exhaust channel, and a porous air permeable plate is provided at the bottom of the exhaust channel, and the porous air permeable plate can intercept the mixture of NdFeB powder and binder;

[0058] Therefore, in the process that the NdFeB powder and binder mixture in the pressing area enters the containing tank 12, the air originally existing in the containing tank 12 can be discharged.

[0059] Reference Figure 9-10 As shown, it illustrates Example II of discharging the air originally existing in the containing tank 12 during the NdFeB processing process performed by the NdFeB processing device provided by the present invention:

[0060] The filling hopper 41 of the present application is made of breathable steel, so that when the NdFeB powder and binder mixture in the pressing area enters the containing tank 12, the air originally existing in the containing tank 12 can be discharged.

[0061] The process of using the above-mentioned NdFeB processing device to process NdFeB includes the following steps:

[0062] Step 1: Fill the tile-shaped NdFeB blank 1 into the multiple receiving grooves 12 on the side of the forming seat 11;

[0063] Step 2: Let the tile-shaped NdFeB blank 1 stand until it solidifies in the containing tank 12;

[0064] Step 3: According to the use strength requirement, the forming seat 11 is sintered together with a plurality of tile-shaped NdFeB blanks 1;

[0065] Step 4: Control the multiple push arms 21 to slide horizontally in the forming seat 11 to push the formed tile-shaped semi-finished product out of the receiving groove 12;

[0066] Step 5: Trim the edge of the tile-shaped semi-finished product to obtain a tile-shaped NdFeB product.

Claims

1. A NdFeB processing device, comprising a forming seat (11) capable of accommodating a plurality of tile-shaped NdFeB blanks (1), Features: The forming seat (11) is a columnar structure, and a plurality of receiving grooves (12) are arranged on the side of the forming seat (11), and the tile-shaped NdFeB blank (1) is placed in the receiving grooves (12); A perforation (13) is provided at a position on the side of the forming seat (11) corresponding to the receiving groove (12), and a push arm (21) is horizontally slidably installed in the perforation (13), and the arc surface of the end of the push arm (21) can simultaneously abut against the inner side surface of the tile-shaped NdFeB blank (1) and the receiving groove (12); The depths of the plurality of receiving grooves (12) are uniformly arranged, so that after the tile-shaped NdFeB blank (1) is placed in the receiving groove (12), it can directly have a certain curvature; A plurality of limit swivels (15) are fixedly mounted on the forming seat (11), a synchronous control rod (23) is rotatably mounted between the plurality of limit swivels (15), a T-shaped column (22) is arranged on the pushing arm (21), and the synchronous control rod (23) is hingedly connected to the T-shaped column (22) via a connecting rod (24); The rotation center of the synchronous control rod (23) is coaxially arranged with the arc center of the forming seat (11); A filling hopper (41) is vertically slidably mounted on the outer side of the forming seat (11), the lower end of the filling hopper (41) is connected to a sealing cylinder (42), and the inner side surface of the sealing cylinder (42) is in contact with the outer side of the forming seat (11); An extension tube (16) is installed on the top of the forming seat (11), and the inner side surface of the sealing tube (42) is in contact with the outer side of the extension tube (16).

2. The NdFeB processing device according to claim 1, Features: The tile-shaped NdFeB blank (1) is formed by mixing NdFeB powder and a binder and bonding them together.

3. The NdFeB processing device according to claim 1, Features: The bottom of the forming seat (11) is connected to a hollow block (14), and the hollow block (14) can be plugged into an insertion pile (32) installed on the top of the bracket (31).

4. The NdFeB processing device according to claim 1, Features: A handle I (26) is detachably mounted on the top of the synchronous control rod (23).

5. The NdFeB processing device according to claim 1, Features: The synchronous control rod (23) is provided with a slot (25), and the slot (25) is plug-fitted with an insertion rod (17) connected to the inner side of the extension tube (16).

6. A process for processing NdFeB using the NdFeB processing device according to claim 1, It is characterized in that The following steps are involved: Step 1: Filling the tile-shaped NdFeB blank (1) into the receiving groove (12) on the side of the forming seat (11); Step 2: Allowing the tile-shaped NdFeB blank (1) to stand until it solidifies in the receiving tank (12); Step three: controlling the plurality of pushing arms (21) to slide horizontally in the forming seat (11) to push the formed tile-shaped semi-finished product out of the containing groove (12).

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