CN116994873B - Mould for manufacturing radial sintered NdFeB cylinder - Google Patents

Mould for manufacturing radial sintered NdFeB cylinder Download PDF

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Publication number
CN116994873B
CN116994873B CN202311028591.9A CN202311028591A CN116994873B CN 116994873 B CN116994873 B CN 116994873B CN 202311028591 A CN202311028591 A CN 202311028591A CN 116994873 B CN116994873 B CN 116994873B
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fixedly connected
motor
hole
rotating
die
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CN116994873A (en
Inventor
王俊
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Dongguan Jianghe Magnetic Technology Co ltd
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Dongguan Jianghe Magnetic Technology Co ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0266—Moulding; Pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/004—Filling molds with powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/1208—Containers or coating used therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/16—Both compacting and sintering in successive or repeated steps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0576—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together pressed, e.g. hot working
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered

Abstract

The invention provides a die for manufacturing a radial sintered NdFeB cylinder, and relates to the field of NdFeB processing. The die for manufacturing the radial sintered NdFeB cylinder comprises a second motor, wherein a rotating piece is rotatably sleeved on the side wall of the second motor, and a plurality of forming assemblies are buckled on the side wall of the rotating piece; the upper end fixedly connected with upper plate of second motor, the upper end edge of upper plate is provided with circular recess to rotate in the recess and be provided with the rolling disc, and the edge equiangle of rolling disc is provided with a plurality of through-holes of keeping in, the upper end middle part fixedly connected with support frame of upper plate, vertical fixedly connected with pneumatic cylinder on the support frame, the output fixedly connected with punching press head of pneumatic cylinder, and the punching press head action is sent into the shaping subassembly under the through-hole of keeping in the material. The cylindrical stress obtained by repeated pressing is uniformly distributed.

Description

Mould for manufacturing radial sintered NdFeB cylinder
Technical Field
The invention relates to the technical field of neodymium iron boron processing, in particular to a die for manufacturing a radial sintered neodymium iron boron cylinder.
Background
Neodymium magnets, also called neodymium-iron-boron magnets, are tetragonal crystals formed from neodymium, iron, and boron. The neodymium-iron-boron is divided into sintered neodymium-iron-boron and bonded neodymium-iron-boron, and the bonded neodymium-iron-boron has magnetism in all directions and is corrosion-resistant; the sintered NdFeB is easy to corrode, and the surface of the sintered NdFeB needs a plating layer, and the sintered NdFeB is generally galvanized, nickel, environment-friendly zinc, environment-friendly nickel, nickel-copper-nickel, environment-friendly nickel-copper-nickel and the like. The sintered NdFeB is generally divided into axial magnetization and radial magnetization, and is determined according to the required working surface.
In order to obtain a neodymium magnet cylinder with uniform radial magnetic field distribution, a square magnet is cut into square strips, and then a square rolling grinding machine is used for processing the square strips into a cylindrical magnet. The method has serious material waste and high cost.
Powder is also pressed, sintered, and magnetized. However, most of the existing powder forming modes are one-step forming, the stress of the formed blank at the end part of the formed blank is low, namely the integral internal stress is unevenly distributed, and the deformation generated during firing is uncontrollable. And after one-time molding, the mold is immediately taken out, and no stress is released and the cylindrical deformation-free scene is maintained. Secondly, in the stamping process, materials are prevented from being adhered to a die, and most of the materials are required to be sprayed with a release agent on the surface of the die, and the use of the release agent can influence the surface quality of a product, so that the radial magnetic field is uneven.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a die for manufacturing a radial sintered neodymium-iron-boron cylinder, which solves the problems of large errors of the shape, the size and the surface quality of the existing powder-molded neodymium magnet.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a radial sintered neodymium iron boron cylinder's of preparation mould, includes the second motor, the lateral wall of second motor rotates and has cup jointed the rotating member, the lateral wall lock of rotating member is provided with a plurality of shaping subassemblies, and the second motor is arranged in driving to rotate the piece to place the material in the shaping subassembly, acquire circular shape material.
The upper end fixedly connected with upper plate of second motor, the upper end edge of upper plate is provided with circular recess to rotate in the recess and be provided with the rolling disc, and the edge equiangular setting of rolling disc is provided with a plurality of temporary storage through-holes, upper end middle part fixedly connected with support frame of upper plate, vertical fixedly connected with pneumatic cylinder on the support frame, the output fixedly connected with punching press head of pneumatic cylinder, and the shaping subassembly under the action is sent into to the material in the temporary storage through-hole, is arranged in temporary storage through-hole that the rolling disc was preset to be used for keeping in a certain amount of through-hole, if with the shaping subassembly full of the material that needs many temporary storage through-holes to the material needs to press in the shaping subassembly through the punching press head many times, and a small amount of operating means many times, compared with the mode of once-through-hole, its stress distributes each evenly, deformation uniformity when firing is better.
Preferably, the upper cover of the rotating disc is covered and provided with an upper cover, the edge of the upper cover is fixedly connected with an upper plate, the middle part of the upper end of the upper cover is fixedly connected with a third motor, the output end of the third motor is fixedly connected with the rotating disc, the third motor is started, the rotating disc is driven to rotate, and the transfer of materials in the temporary storage through holes is realized.
Preferably, the edge of upper cover is provided with the punching press hole, the blanking hole has been seted up on the upper plate to the punching press head can be through punching press hole, temporary storage through-hole, blanking hole entering shaping subassembly inside in proper order, and punching press hole, temporary storage through-hole, blanking hole, shaping cavity and the size of shaping subassembly keep unanimous of punching press head, and can rotate to same vertical orientation on, realize that the material gets into in the shaping subassembly.
Preferably, the rotating member comprises a rotating sleeve, gear teeth are arranged on the inner wall of the upper portion and the inner wall of the lower portion of the rotating sleeve, output ends are arranged at the upper end and the lower end of the second motor, the output ends are fixedly connected with second gears, a plurality of first gears are meshed with the outer sides of the second gears, the first gears are meshed with the gear teeth, the first gears, the second gears and the gear teeth form a group of planetary gears, the second gears are input ends, the gear teeth are output ends, and a speed reduction function is achieved when the second motor drives the rotating member.
Preferably, the lower part lateral wall of rotating the cover is provided with down the flange, be provided with first spacing groove down on the flange, the upper end deposit of rotating the cover is provided with the flange, be provided with the second spacing groove on the flange, the lateral wall fixedly connected with metal clamping piece of rotating the cover, the shaping subassembly is held on the metal clamping piece to the lower extreme setting of shaping subassembly is in first spacing groove, the upper end sets up in the second spacing groove for with shaping subassembly lock on rotating the piece, the getting of shaping subassembly is put through industrial robot.
Preferably, the molding assembly comprises two semicircular sheets, a bottom cap is embedded at the lower end of each semicircular sheet, and a retaining ring is buckled on the side wall of the upper part of each semicircular sheet. The two semi-circular sheets can form a pipe fitting, and the upper end and the lower end of the pipe fitting are fixed by the bottom cap and the retaining ring.
Preferably, the lower extreme fixedly connected with bottom plate of second motor, a plurality of fixed through-holes of usefulness are seted up to the edge of bottom plate, and the connected mode of bottom plate, second motor is the same with upper plate, connected mode of second motor, sets up the projection on the bottom plate to be provided with the counter bore in the projection, place the fixed bolt in the counter bore and carry out fixed connection with the second motor.
Preferably, the upper end fixedly connected with blanking pipe of upper cover, the lateral wall fixedly connected with hopper of blanking pipe, deposit the material in the hopper to the material passes through the blanking pipe and gets into in the temporary storage through-hole of predetermineeing in the rolling disc.
Preferably, the inside of blanking pipe is provided with the screw rod, the upper end fixedly connected with first motor of blanking pipe, the output and the screw rod fixed connection of first motor start first motor, start the screw rod and rotate, realize in with the material propelling movement to temporary storage through-hole.
A method for shaping NdFeB cylinder includes such steps as mixing NdFeB powder with light oil (gasoline, for example) or small-molecular organic liquid (alcohol, for example), stirring, loosening, and holding by hand. The traditional molding mode basically uses powder directly to be molded by one-step punching, but various materials in the powder are uniformly distributed due to the differences of physical and chemical properties in the process of conveying and mechanical vibration, and light oil is adopted to wet the materials, so that the friction force between the materials is increased, the problem of uneven material distribution is avoided as much as possible, and meanwhile, the materials and air are isolated by using the light oil, so that the oxidation of the materials can be avoided, and the quality of products is influenced. Then using the above equipment to press the material into the forming assembly, removing the forming assembly, placing in a cavity with air purification, drying in the shade for one to two weeks, then taking out the cylindrical blank from the forming assembly, placing in a thermostatic chamber, controlling the temperature to 50-60 ℃ and the time to three to five days, then firing, after the high-temperature sintering is finished, carrying out surface treatment, and then magnetizing to obtain the neodymium magnet column.
(III) beneficial effects
The invention provides a die for manufacturing a radial sintered NdFeB cylinder. The beneficial effects are as follows:
1. according to the invention, materials are fed into the forming assembly for multiple times, and stamping is carried out once for each feeding, so that the stress distribution in the formed blank is uniform, and if deformation occurs, the deformation consistency is good, and the blank can be processed again for elimination.
2. The invention uses the forming assembly, the formed blank can be placed in the forming assembly for a period of time, a part of internal stress can be naturally eliminated in the process of storage, and the material in the forming assembly can only deform axially without influencing the change of the shape and the rule of the circumferential surface.
3. The invention adopts the molding assembly, and the molding assembly is composed of the bottom cap, the semi-circular sheet and the retaining ring, so that the mold release agent is not used, and the molding assembly is directly disassembled when the blank is taken down, thereby ensuring the surface quality of the blank.
Description of the drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of an explosive structure according to the present invention;
FIG. 3 is an exploded view of the molding assembly of the present invention;
FIG. 4 is a perspective view of a rotary member according to the present invention;
fig. 5 is a schematic view of the internal structure of the blanking pipe of the present invention.
Wherein, 1, the bottom plate; 2. a molding assembly; 3. a rotating member; 4. an upper plate; 5. an upper cover; 6. a support frame; 7. a pneumatic cylinder; 8. a first motor; 9. a hopper; 10. a blanking pipe; 11. a first gear; 12. a second motor; 13. a second gear; 14. a rotating disc; 15. a third motor; 16. punching a hole; 17. a blanking hole; 18. a screw;
21. a bottom cap; 22. a semi-wafer; 23. a clasp ring; 31. a lower convex plate; 32. a first limit groove; 33. a metal clip; 34. a rotating sleeve; 35. an upper convex plate; 36. the second limit groove; 37. gear teeth.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples:
as shown in fig. 1-5, the embodiment of the invention provides a mold for manufacturing a radial sintered neodymium iron boron cylinder, which comprises a second motor 12, wherein a shell of the second motor 12 is of a cylindrical structure, a rotating member 3 is rotatably sleeved on the side wall of the second motor 12, namely, the rotating member 3 can rotate around the second motor 12, a certain distance is arranged between the rotating member 3 and the side wall of the second motor 12, a plurality of forming assemblies 2 are buckled on the side wall of the rotating member 3, a cylindrical cavity is formed in the forming assemblies 2 and is used for forming the neodymium iron boron cylinder, and a plurality of forming assemblies 2 are arranged on the side wall of the rotating member 3, so that continuous production can be realized.
The upper end fixedly connected with upper plate 4 of second motor 12, upper plate 4 is a circular plate, it specifically fixes on the shell of second motor 12, and upper cover 4 is the lid and closes on rotating piece 3, so can set up the end bearing between upper plate 4 and rotating piece 3, the upper end edge of upper plate 4 is provided with circular recess, and rotate in the recess and be provided with rolling disc 14, adopt the mode of excessive cooperation between circular recess and the rolling disc 14, and the edge equi-angle of rolling disc 14 is provided with a plurality of temporary storage through-holes, be used for temporary storage material, when rolling disc 14 rotates, can promote the transfer of the material of temporary storage through-hole, upper end middle part fixedly connected with of upper plate 4 has support frame 6, support frame 6 is a support column, and be provided with a plurality of backup pads on the support column, vertical fixedly connected with pneumatic cylinder 7 on the support frame 6, and pneumatic cylinder 7 fixedly connected with is in the backup pad, the output fixedly connected with stamping head of pneumatic cylinder 7, and the action send the material in the temporary storage into the shaping subassembly 2 under the through-hole, pneumatic cylinder 7 during operation, the stamping head moves down, send the material in the compacting subassembly under the temporary storage through-hole into.
The upper cover 5 is covered on the upper side of the rotating disc 14, the edge of the upper cover 5 is fixedly connected with the upper plate 4, namely, a plurality of fixing bolts are arranged on the edge of the upper cover 5, the upper cover 5 is fastened on the upper plate 4 through the fixing bolts, the middle part of the upper end of the upper cover 5 is fixedly connected with a third motor 15, the output end of the third motor 15 is fixedly connected with the rotating disc 14, the third motor 15 is started, the rotating disc 14 is driven to rotate, and a cavity formed by the upper cover 5 and the upper plate 4 just accommodates the rotating disc 14.
The edge of upper cover 5 is provided with punching press hole 16, and the through-hole that the punching press head can get into upper cover 5 inside has been seted up blanking hole 17 on the upper plate 4, and the material gets into shaping subassembly 2 through blanking hole 17 promptly to the punching press head can get into shaping subassembly 2 inside through punching press hole 16, temporary storage through-hole, blanking hole 17 in proper order.
The rotating member 3 comprises a rotating sleeve 34, the rotating sleeve 34 is of a pipe fitting structure, gear teeth 37 are arranged on the inner wall of the upper portion and the inner wall of the lower portion of the rotating sleeve 34, the gear teeth 37 are uniformly distributed in a circle, output ends are arranged at the upper end and the lower end of the second motor 12, the output ends are fixedly connected with the second gear 13, a plurality of first gears 11 are meshed with the outer side of the second gear 13, the first gears 11 are meshed with the gear teeth 37, namely, the first gears 11, the second gears 13 and the gear teeth 37 form a first-stage planetary reduction gear set, the second motor 12 is started, and the retarded rotation of the rotating member 3 can be driven.
The lower part lateral wall of rotating sleeve 34 is provided with down flange 31, be provided with first spacing groove 32 on the lower flange 31, and the lower extreme of first spacing groove 32 does not run through the setting, can be used to support shaping subassembly 2, the upper end deposit of rotating sleeve 34 is provided with up flange 35, it is similar to the structure of flange to go up flange 35, be provided with second spacing groove 36 on the upper flange 35, the lateral wall fixedly connected with metal clamping piece 33 of rotating sleeve 34, shaping subassembly 2 is held on metal clamping piece 33, and the lower extreme setting of shaping subassembly 2 is in first spacing groove 32, the upper end sets up in second spacing groove 36, in actual production, can use industrial robot, take off shaping subassembly 2 from rotating piece 3, or place.
The forming assembly 2 comprises two semicircular sheets 22, the two semicircular sheets 22 can form a tubular piece, further, the tubular piece can be formed by a plurality of circular sheets, such as three, four and the like, the difficulty of blank removal is reduced, the lower ends of the semicircular sheets 22 are embedded and provided with a bottom cap 21, when the two semicircular sheets 22 are matched, the lower parts of the semicircular sheets are embedded and provided with the bottom cap 21, the fixation of the lower parts is realized, the buckling of the side walls of the upper parts of the semicircular sheets 22 is provided with a buckling ring 23, the buckling ring 23 is sleeved on the upper parts of the two semicircular sheets 22, the fixation is realized, and the structure is easy to disassemble and assemble.
The lower extreme fixedly connected with bottom plate 1 of second motor 12, the connected mode between bottom plate 1, the second motor 12 is the same with upper plate 4, the connection structure of second motor 12, specifically, be provided with the projection towards second motor 12 tip on bottom plate 1 to be provided with the counter bore on the projection, the bolt and the second motor 12 fixed connection of setting in the counter bore, further, can set up the terminal surface bearing between bottom plate 1 and rotating piece 3, the through-hole of a plurality of fixed usefulness is seted up at the edge of bottom plate 1 for with the device fixed connection on relevant equipment.
The upper end of the upper cover 5 is fixedly connected with a blanking pipe 10, the side wall of the blanking pipe 10 is fixedly connected with a hopper 9, and materials are stored in the hopper 9. The inside of blanking pipe 10 is provided with screw rod 18, and the upper end fixedly connected with first motor 8 of blanking pipe 10, the output and the screw rod 18 fixed connection of first motor 8 start first motor 8, and screw rod 18 rotates, can send the material in the hopper 9 into the through-hole of keeping in.
Working principle: when the device is used, materials are stored in the hopper 9, the forming assembly 2 is clamped and arranged on the rotating member 3, the first motor 8 is started at the moment, the materials in the hopper 9 enter the temporary storage through hole under the transmission of the screw rod 18, then the third motor 15 works, the rotating disc 14 is driven to rotate, the temporary storage through hole containing the materials is rotated between the punching hole 16 and the blanking hole 17, the second motor 12 is required to be started before the temporary storage through hole containing the materials is rotated, the rotating member 3 is driven to rotate, one forming assembly 2 is rotated to the position right below the blanking hole 17, finally the pneumatic cylinder 7 works, the punching head sequentially enters the forming assembly 2 through the punching hole 16, the temporary storage through hole and the blanking hole 17, and the materials enter the forming assembly 2 under the pushing of the punching head and are compacted.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a mould of radial sintered neodymium iron boron cylinder of preparation, includes second motor (12), its characterized in that: the side wall of the second motor (12) is rotatably sleeved with a rotating piece (3), and a plurality of forming assemblies (2) are buckled on the side wall of the rotating piece (3);
the upper end of the second motor (12) is fixedly connected with an upper plate (4), a circular groove is formed in the edge of the upper end of the upper plate (4), a rotating disc (14) is rotatably arranged in the groove, a plurality of temporary storage through holes are formed in the edge of the rotating disc (14) at equal angles, the middle part of the upper end of the upper plate (4) is fixedly connected with a support frame (6), the support frame (6) is vertically and fixedly connected with a pneumatic cylinder (7), the output end of the pneumatic cylinder (7) is fixedly connected with a punching head, and the punching head acts to feed materials in the temporary storage through holes into a forming assembly (2) below;
an upper cover (5) is arranged above the rotating disc (14) in a covering manner, the edge of the upper cover (5) is fixedly connected with an upper plate (4), the middle parts of the upper ends of the upper cover (5) are fixedly connected with a third motor (15), and the output end of the third motor (15) is fixedly connected with the rotating disc (14);
the edge of the upper cover (5) is provided with a punching hole (16), the upper plate (4) is provided with a blanking hole (17), and the punching head sequentially passes through the punching hole (16), the temporary storage through hole and the blanking hole (17) to enter the forming assembly (2);
the upper end of the upper cover (5) is fixedly connected with a blanking pipe (10), and the side wall of the blanking pipe (10) is fixedly connected with a hopper (9).
2. The die for manufacturing the radial sintered neodymium-iron-boron cylinder according to claim 1, wherein: the rotating piece (3) comprises a rotating sleeve (34), gear teeth (37) are arranged on the inner wall of the upper portion and the inner wall of the lower portion of the rotating sleeve (34), output ends are arranged at the upper end and the lower end of the second motor (12), the output ends are fixedly connected with second gears (13), a plurality of first gears (11) are meshed with the outer sides of the second gears (13), and the first gears (11) are meshed with the gear teeth (37).
3. A die for making radial sintered neodymium-iron-boron cylinders according to claim 2, characterized in that: the lower part lateral wall of rotating sleeve (34) is provided with protruding board (31) down, be provided with first spacing groove (32) on protruding board (31) down, the upper end deposit of rotating sleeve (34) is provided with protruding board (35), be provided with second spacing groove (36) on protruding board (35), the lateral wall fixedly connected with metal clamping piece (33) of rotating sleeve (34), shaping subassembly (2) are held on metal clamping piece (33) to the lower extreme setting of shaping subassembly (2) is in first spacing groove (32), the upper end setting is in second spacing groove (36).
4. The die for manufacturing the radial sintered neodymium-iron-boron cylinder according to claim 1, wherein: the molding assembly (2) comprises two semicircular sheets (22), a bottom cap (21) is embedded at the lower end of each semicircular sheet (22), and a retaining ring (23) is buckled on the side wall of the upper portion of each semicircular sheet (22).
5. The die for manufacturing the radial sintered neodymium-iron-boron cylinder according to claim 1, wherein: the lower end of the second motor (12) is fixedly connected with a bottom plate (1), and a plurality of through holes for fixing are formed in the edge of the bottom plate (1).
6. The die for manufacturing the radial sintered neodymium-iron-boron cylinder according to claim 1, wherein: the inside of blanking pipe (10) is provided with screw rod (18), the upper end fixedly connected with first motor (8) of blanking pipe (10), the output and the screw rod (18) fixed connection of first motor (8).
CN202311028591.9A 2023-08-15 2023-08-15 Mould for manufacturing radial sintered NdFeB cylinder Active CN116994873B (en)

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CN210848322U (en) * 2019-10-30 2020-06-26 江西粤磁稀土新材料科技有限公司 Forming die of sintered neodymium iron boron permanent magnet
WO2021004359A1 (en) * 2019-07-10 2021-01-14 信丰县包钢新利稀土有限责任公司 Surface pretreatment device for annular neodymium iron boron
WO2021254022A1 (en) * 2020-06-20 2021-12-23 信丰县包钢新利稀土有限责任公司 Pretreatment apparatus for neodymium-iron-boron waste before calcination
CN114799994A (en) * 2021-05-27 2022-07-29 上海致圭磁业有限公司 Full-automatic chamfering machine with automatic feeding function for neodymium iron boron production
CN115193987A (en) * 2022-07-14 2022-10-18 江苏南方永磁科技有限公司 Neodymium iron boron magnetism body shaping suppression device
JP2023030293A (en) * 2021-08-23 2023-03-08 大同特殊鋼株式会社 Peripheral oriented arc-shaped profile sheet magnet or radial oriented arc-shaped profile sheet magnet or convergence oriented rectangular profile sheet magnet and manufacturing method thereof

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Publication number Priority date Publication date Assignee Title
JP2017162881A (en) * 2016-03-07 2017-09-14 セイコーインスツル株式会社 Manufacturing method for rare-earth sinter magnet
CN109014188A (en) * 2018-09-18 2018-12-18 安徽宁磁电子科技有限公司 Radial magnetized neodymium ferrum boron cylindrical blank forms whole set of die and its production method
WO2021004359A1 (en) * 2019-07-10 2021-01-14 信丰县包钢新利稀土有限责任公司 Surface pretreatment device for annular neodymium iron boron
CN210848322U (en) * 2019-10-30 2020-06-26 江西粤磁稀土新材料科技有限公司 Forming die of sintered neodymium iron boron permanent magnet
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JP2023030293A (en) * 2021-08-23 2023-03-08 大同特殊鋼株式会社 Peripheral oriented arc-shaped profile sheet magnet or radial oriented arc-shaped profile sheet magnet or convergence oriented rectangular profile sheet magnet and manufacturing method thereof
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