CN219017438U

CN219017438U - Special-shaped die for neodymium-iron-boron permanent magnet

Info

Publication number: CN219017438U
Application number: CN202223490882.3U
Authority: CN
Inventors: 胡承启; 胡祖松; 房迎春
Original assignee: Ningbo Qici Electromechanical Co ltd
Current assignee: Ningbo Qici Electromechanical Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-12
Anticipated expiration: 2032-12-27

Abstract

The utility model provides a special-shaped die for a neodymium-iron-boron permanent magnet. The special-shaped die for the neodymium-iron-boron permanent magnet comprises: the base, install the motor in the base, the axis of rotation is installed to the base internal rotation, the motor is connected with the axis of rotation transmission, the top of axis of rotation extends to the base outside and fixed mounting has the rolling disc, place limited section of thick bamboo on the rolling disc, two mould that merge have been placed in the limited section of thick bamboo, fixed mounting has first framework on the rolling disc, slidable mounting has the intubate in the first framework, the bottom of intubate extends to in two moulds, one side fixed mounting of intubate has the filling pipe, the top fixed mounting of base has the second framework, the top fixed mounting of second framework has the pneumatic cylinder. The special-shaped die for the neodymium-iron-boron permanent magnet has the advantage of improving the filling compaction effect of the raw materials of the neodymium-iron-boron permanent magnet.

Description

Special-shaped die for neodymium-iron-boron permanent magnet

Technical Field

The utility model relates to the technical field of dies, in particular to a special-shaped die for a neodymium-iron-boron permanent magnet.

Background

The neodymium-iron-boron permanent magnet is one of neodymium-iron-boron magnetic materials, is also called as rare earth permanent magnet material, has excellent magnetism, is mainly made of materials such as iron, boron, rare earth and the like, and is required to be mixed together and melted during production, then is cooled, crushed and sintered, and during sintering, the crushed neodymium-iron-boron permanent magnet is generally poured into a specific mold for shaping, then is put into a combustion furnace together with the mold for sintering, so that a blank with a specific shape is obtained, and finally is magnetized by strong current, so that the neodymium-iron-boron permanent magnet is obtained.

And when moulding the neodymium iron boron permanent magnet through the mould, in order to guarantee its compactness, can all carry out the extrusion of certain degree to the neodymium iron boron permanent magnet raw materials in the mould generally, present mould is mostly all used for producing the neodymium iron boron permanent magnet of shapes such as column, cubic, this makes when filling and extrusion to the neodymium iron boron permanent magnet raw materials in the mould, comparatively simple and convenient, but current mould is when producing abnormal shape neodymium iron boron permanent magnet, because abnormal shape mould inner space is irregular, make neodymium iron boron permanent magnet raw materials not enough even and comprehensive when filling the extrusion, can lead to the neodymium iron boron permanent magnet raw materials of abnormal shape mould inner part region relatively loose, thereby finally can influence the quality of abnormal shape neodymium iron boron permanent magnet.

Therefore, it is necessary to provide a new special-shaped die for the neodymium-iron-boron permanent magnet to solve the technical problems.

Disclosure of Invention

The utility model solves the technical problem of providing the special-shaped die for the neodymium-iron-boron permanent magnet, which can improve the filling compaction effect of the raw materials of the neodymium-iron-boron permanent magnet.

In order to solve the technical problems, the special-shaped die for the neodymium-iron-boron permanent magnet provided by the utility model comprises: the base, install the motor in the base, the axis of rotation is installed to the base internal rotation, the motor is connected with the axis of rotation transmission, the top of axis of rotation extends to the base and fixed mounting has the rolling disc outward, place limited section of thick bamboo on the rolling disc, two mould that merge have been placed in the limited section of thick bamboo, fixed mounting has first framework on the rolling disc, slidable mounting has the intubate in the first framework, the bottom of intubate extends to in two moulds, one side fixed mounting of intubate has the filling tube, the top fixed mounting of base has the second framework, the top fixed mounting of second framework has the pneumatic cylinder, rotationally install the extrusion stem on the output rod of pneumatic cylinder, the bottom of extrusion stem extends to intubate in and with intubate sliding connection.

Preferably, a first bevel gear is fixedly arranged on an output shaft of the motor, a second bevel gear is fixedly sleeved on the rotating shaft, and the first bevel gear is meshed with the second bevel gear.

Preferably, the limiting cylinder is sleeved with a limiting ring in a sliding manner, and the bottom of the limiting ring is fixedly connected with the rotating disc.

Preferably, clamping grooves are formed in the inner walls of the two sides of the limiting cylinder, clamping blocks are slidably mounted in the two clamping grooves, and the two clamping blocks are fixedly connected with the two dies respectively.

Preferably, the fixed cover is equipped with the connecting strip on the intubate, the bottom fixed mounting of connecting strip has two inserted bars, and one side of two moulds is all fixed mounting has trapezoidal piece, and the slot has all been seted up at the top of two trapezoidal pieces, and the bottom of two inserted bars extends to in the slot that corresponds respectively and with corresponding slot sliding connection.

Preferably, the top fixed mounting of connecting strip has two locating levers, and the top of two locating levers all runs through first framework and with first framework sliding connection, all the slip cap is equipped with the spring on two locating levers, the bottom of spring contacts with the top of connecting strip, the top of spring contacts with the top inner wall of first framework.

Preferably, the top fixed mounting of base has annular slide rail, slidable mounting has the go-between on the annular slide rail, the top of go-between and the bottom fixed connection of rolling disc.

Compared with the related art, the special-shaped die for the neodymium-iron-boron permanent magnet has the following beneficial effects:

the utility model provides a neodymium-iron-boron permanent magnet special-shaped die, which can drive the die to rotate at high speed through matching of a motor, a first conical gear, a rotating shaft, a second conical gear and a rotating disc, so that the raw materials of the neodymium-iron-boron permanent magnet can be uniformly distributed to each area of a special-shaped die cavity, the tightness of the neodymium-iron-boron permanent magnet can be improved due to the centrifugal force generated by high-speed rotation, and the raw materials of the neodymium-iron-boron permanent magnet in the middle part of the die cavity can be extruded through matching of a hydraulic cylinder and an extrusion rod, so that the compactness of the neodymium-iron-boron permanent magnet during shaping is improved.

Drawings

Fig. 1 is a schematic diagram of a front view angle structure of a special-shaped die for a neodymium-iron-boron permanent magnet;

fig. 2 is a schematic diagram of a first cross-sectional structure of a special-shaped die for a neodymium-iron-boron permanent magnet provided by the utility model;

fig. 3 is a schematic diagram of a second cross-sectional structure of the special-shaped die for the neodymium-iron-boron permanent magnet provided by the utility model;

fig. 4 is a schematic diagram of a rear view angle structure of a special-shaped die for a neodymium-iron-boron permanent magnet.

Reference numerals in the drawings: 1. a base; 2. a motor; 3. a first bevel gear; 4. a rotating shaft; 5. a second bevel gear; 6. a rotating disc; 7. defining a ring; 8. a defining barrel; 9. a mold; 10. a first frame; 11. a connecting strip; 12. a cannula; 13. a filling tube; 14. a second frame; 15. a hydraulic cylinder; 16. and extruding the rod.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4 in combination, fig. 1 is a schematic diagram of a front view angle structure of a special-shaped die for a neodymium-iron-boron permanent magnet according to the present utility model; fig. 2 is a schematic diagram of a first cross-sectional structure of a special-shaped die for a neodymium-iron-boron permanent magnet provided by the utility model; fig. 3 is a schematic diagram of a second cross-sectional structure of the special-shaped die for the neodymium-iron-boron permanent magnet provided by the utility model; fig. 4 is a schematic diagram of a rear view angle structure of a special-shaped die for a neodymium-iron-boron permanent magnet. The special-shaped die of the neodymium-iron-boron permanent magnet comprises: the base 1, base 1 is made up of two parts of bottom plate and top cap, fix together through the screw between the two, and the bottom of base 1 is equipped with six stabilizer blades that are annular distribution, install motor 2 in the base 1, the connecting seat of motor 2 and the bottom of base 1 all are equipped with the screw hole, the connecting seat of motor 2 is connected with base 1 through the screw, the rotation axis 4 is installed in the rotation of base 1, the rotation hole has all been seted up to the bottom inner wall and the top inner wall of base 1, rotation axis 4 runs through two rotation holes and rotates with two rotation holes to be connected, fixed mounting has first conical gear 3 on the output shaft of motor 2, fixed cover is equipped with second conical gear 5 on the rotation axis 4, first conical gear 3 meshes with second conical gear 5, the top of rotation axis 4 extends to outside the base 1 and fixed mounting has rolling disc 6, annular slide rail is fixedly installed at the top of base 1, the annular slide rail is provided with a connecting ring in a sliding manner, the top of the connecting ring is fixedly connected with the bottom of the rotating disc 6, the annular slide rail is matched with the connecting ring to support the periphery of the rotating disc 6 under the condition that the rotation of the rotating disc 6 is not affected, so that the stability of the rotating disc 6 is improved, a limiting cylinder 8 is arranged on the rotating disc 6, the limiting cylinder 8 is mainly used for limiting two combined dies 9, the limiting cylinder 8 is provided with a limiting ring 7 in a sliding sleeve manner, the bottom of the limiting ring 7 is fixedly connected with the rotating disc 6, the limiting ring 7 can limit the bottom of the limiting cylinder 8, the limiting cylinder 8 cannot deviate when the rotating disc 8 is driven to rotate, two combined dies 9 are arranged in the limiting cylinder 8, the tops of the two dies 9 are provided with half holes, the two half holes are combined together to form a perforation, this makes intubate 12 can insert inside two moulds 9, the draw-in groove has all been seted up to the both sides inner wall of inject section of thick bamboo 8, equal slidable mounting has the fixture block in two draw-in grooves, two fixture blocks respectively with two moulds 9 fixed connection, fixture block on the draw-in groove cooperation makes inject section of thick bamboo 8 can keep synchronous rotation all the time with two moulds 9, fixed mounting has first framework 10 on the rolling disc 6, slidable mounting has intubate 12 on first framework 10, the perforation has been seted up to the top inner wall of first framework 10, intubate 12 runs through the perforation and with perforation sliding connection, the bottom of intubate 12 extends to in two moulds 9, one side fixed mounting of intubate 12 has filling tube 13, filling tube 13 mainly used is poured the die cavity of mould 9 with the permanent magnet raw materials into, the top fixed mounting of base 1 has second framework 14, the top fixed mounting of second framework 14 has pneumatic cylinder 15, the perforation has been seted up to the top inner wall of second framework 14, the output rod of pneumatic cylinder 15 runs through the perforation and with perforation sliding connection, rotationally install extrusion rod 16 on the output rod of pneumatic cylinder 15, extrusion rod 16, the bottom of

extrusion rod

16 and 12 and the expansion and expansion chute 12 are connected to one side of the same sliding chute with the expansion chute, the expansion chute is not opened to one side of the expansion chute 16 in the expansion chute is connected with the extension slider 12.

The fixed cover is equipped with connecting strip 11 on the intubate 12, one side fixed mounting of connecting strip 11 has the handle ring, through lifting up connecting strip 11 that the handle ring can be more convenient, the bottom fixed mounting of connecting strip 11 has two inserted bars, one side of two moulds 9 is all fixed mounting has the trapezoidal piece, the slot has all been seted up at the top of two trapezoidal pieces, the bottom of two inserted bars extends respectively to in the slot that corresponds and with corresponding slot sliding connection, inserted bar cooperation goes up trapezoidal piece and slot, can be stable with mould 9 and limit section of thick bamboo 8 to on rotating disk 6, the top fixed mounting of connecting strip 11 has two locating levers, the top of locating lever is equipped with the limit piece, the limit piece can avoid the locating lever to break away from first framework 10, the top of two locating levers all runs through first framework 10 and with first framework 10 sliding connection, all the slip cap is equipped with the spring on the locating lever, the bottom of spring contacts with the top inner wall of first framework 10, the top of spring can let connecting strip 11 tightly support trapezoidal piece and mould 9 through the inserted bar.

The working principle of the special-shaped die for the NdFeB permanent magnet provided by the utility model is as follows:

when the material of the neodymium iron boron permanent magnet needs to be filled into the mould 9 for shaping, the two moulds 9 are combined together and then inserted into the limiting cylinder 8, in the process, the two clamping blocks on the two moulds 9 need to be clamped into the two clamping grooves on the limiting cylinder 8, then the connecting strip 11 is lifted up by lifting the ring, the connecting strip 11 drives the two inserting rods and the inserting tube 12 to rise while pressing the two springs, then the limiting cylinder 8 and the two moulds 9 are placed into the limiting ring 7 on the rotating disc 6, then the connecting strip 11 is put down, so that the two inserting rods are inserted into the inserting grooves on the two trapezoid blocks, further limiting of the mould 9 is realized, meanwhile, the inserting tube 12 is also inserted into the two moulds 9 through the inserting holes on the two moulds 9, at the moment, the material of the neodymium iron boron permanent magnet is poured into the inserting tube 12 through the filling tube 13, the raw materials enter the die cavities in the two dies 9 through the insertion pipe 12, then, the motor 2 is started, the motor 2 drives the first bevel gear 3 to rotate through the output shaft, the first bevel gear 3 drives the rotating shaft 4 to rotate through the second bevel gear 5, the rotating shaft 4 drives the rotating disc 6 to rotate, the rotating disc 6 drives the limiting cylinder 8, the two dies 9 and various structures arranged on the rotating disc 6 to rotate, in the process, the extrusion rod 16 synchronously rotates along with the insertion pipe 12, and along with the high-speed rotation of the dies 9, centrifugal force generated in the rotation process can lead neodymium iron boron permanent magnet raw materials to be uniformly filled into all areas in the special-shaped die cavities and become more compact, in the process, the hydraulic cylinder 15 is started, the hydraulic cylinder 15 drives the rotating extrusion rod 16 to descend through the output rod, so that the extrusion rod 16 can compact the neodymium iron boron permanent magnet raw materials in the middle part in the dies 9, therefore, the raw materials of the neodymium-iron-boron permanent magnet filled in the special-shaped die are ensured to be more compact, and the quality of the neodymium-iron-boron permanent magnet blank sintered later is higher.

the utility model provides a neodymium-iron-boron permanent magnet special-shaped die, which is characterized in that a die 9 can be driven to rotate at high speed by matching a motor 2, a first conical gear 3, a rotating shaft 4, a second conical gear 5 and a rotating disc 6, so that the raw materials of the neodymium-iron-boron permanent magnet can be uniformly distributed to each area of a special-shaped die cavity, the tightness of the neodymium-iron-boron permanent magnet can be improved by the centrifugal force generated by the high-speed rotation, and the raw materials of the neodymium-iron-boron permanent magnet in the middle part of the die cavity can be extruded by matching a hydraulic cylinder 15 and an extrusion rod 16, so that the compactness of the neodymium-iron-boron permanent magnet during shaping is improved.

The device structure and the drawings of the present utility model mainly describe the principle of the present utility model, and in terms of the technology of the design principle, the arrangement of the power mechanism, the power supply system, the control system, etc. of the device is not completely described, but the specific details of the power mechanism, the power supply system, and the control system thereof can be clearly known on the premise that those skilled in the art understand the principle of the present utility model.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a neodymium iron boron permanent magnet abnormal shape mould, includes base, its characterized in that: the novel plastic extrusion device is characterized in that a motor is installed in the base, a rotating shaft is rotatably installed in the base, the motor is in transmission connection with the rotating shaft, the top end of the rotating shaft extends out of the base and is fixedly provided with a rotating disc, a limited cylinder is placed on the rotating disc, two combined molds are placed in the limited cylinder, a first frame body is fixedly installed on the rotating disc, an insertion pipe is slidably installed in the first frame body, the bottom end of the insertion pipe extends into the two molds, a filling pipe is fixedly installed on one side of the insertion pipe, a second frame body is fixedly installed at the top of the base, a hydraulic cylinder is fixedly installed at the top of the second frame body, an extrusion rod is rotatably installed on an output rod of the hydraulic cylinder, and the bottom end of the extrusion rod extends into the insertion pipe and is slidably connected with the insertion pipe.

2. The special-shaped die for the neodymium-iron-boron permanent magnet according to claim 1, wherein a first conical gear is fixedly arranged on an output shaft of the motor, a second conical gear is fixedly sleeved on the rotating shaft, and the first conical gear is meshed with the second conical gear.

3. The special-shaped die for the neodymium-iron-boron permanent magnet according to claim 1, wherein a limiting ring is sleeved on the limiting cylinder in a sliding manner, and the bottom of the limiting ring is fixedly connected with the rotating disc.

4. The special-shaped die for the neodymium-iron-boron permanent magnet according to claim 1, wherein clamping grooves are formed in inner walls of two sides of the limiting cylinder, clamping blocks are slidably mounted in the two clamping grooves, and the two clamping blocks are fixedly connected with the two dies respectively.

5. The special-shaped die for the neodymium-iron-boron permanent magnet according to claim 1, wherein a connecting strip is fixedly sleeved on the insertion pipe, two inserting rods are fixedly installed at the bottom of the connecting strip, trapezoidal blocks are fixedly installed on one sides of the two dies, slots are formed in the tops of the two trapezoidal blocks, and the bottoms of the two inserting rods extend into the corresponding slots respectively and are in sliding connection with the corresponding slots.

6. The special-shaped die for the neodymium-iron-boron permanent magnet according to claim 5, wherein two positioning rods are fixedly arranged at the top of the connecting strip, the top ends of the two positioning rods penetrate through the first frame body and are in sliding connection with the first frame body, springs are sleeved on the two positioning rods in a sliding mode, the bottom ends of the springs are in contact with the top of the connecting strip, and the top ends of the springs are in contact with the inner wall of the top of the first frame body.

7. The special-shaped die for the neodymium-iron-boron permanent magnet according to claim 1, wherein an annular sliding rail is fixedly arranged at the top of the base, a connecting ring is slidably arranged on the annular sliding rail, and the top of the connecting ring is fixedly connected with the bottom of the rotating disc.