CN115138845B - Neodymium iron boron magnetic ring vacuum hot press device with stress elimination function - Google Patents
Neodymium iron boron magnetic ring vacuum hot press device with stress elimination function Download PDFInfo
- Publication number
- CN115138845B CN115138845B CN202210619759.2A CN202210619759A CN115138845B CN 115138845 B CN115138845 B CN 115138845B CN 202210619759 A CN202210619759 A CN 202210619759A CN 115138845 B CN115138845 B CN 115138845B
- Authority
- CN
- China
- Prior art keywords
- plate
- ring
- vortex
- heat
- iron boron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910001172 neodymium magnet Inorganic materials 0.000 title claims abstract description 46
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 230000008030 elimination Effects 0.000 title description 2
- 238000003379 elimination reaction Methods 0.000 title description 2
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 239000002994 raw material Substances 0.000 claims abstract description 35
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 238000007731 hot pressing Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 13
- 238000003756 stirring Methods 0.000 description 9
- 239000000110 cooling liquid Substances 0.000 description 8
- 238000000465 moulding Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000006698 induction Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- 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
- B22F3/003—Apparatus, e.g. furnaces
-
- 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
- B22F3/005—Loading or unloading powder metal objects
-
- 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
- B22F3/02—Compacting only
- B22F3/093—Compacting only using vibrations or friction
-
- 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
- B22F3/14—Both compacting and sintering simultaneously
-
- 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
- B22F3/24—After-treatment of workpieces or articles
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Abstract
The invention discloses a vacuum hot pressing device with a stress relief function for a neodymium iron boron magnetic ring, which relates to the technical field of hot pressing forming, and comprises a base, wherein an upper template and a lower template are arranged on the base, a shell is arranged on the outer sides of the upper template and the lower template, one end of the shell is connected with the base, the shell is in sliding connection with the upper template, a feeding mechanism and a piece discharging mechanism are arranged on the shell, raw materials are infused into a forming cavity in the lower template from a feeding port, the upper template and the lower template are mutually matched to exert pressure, heat and maintain pressure on the raw materials, so that the neodymium iron boron magnetic ring is formed in the upper template and the lower template, the lower template vibrates the raw materials while heating the raw materials, the contact between the raw materials is tighter through vibration, the gas in the raw materials is extruded, gaps between the raw materials and the inner walls of the forming cavity are filled, after the neodymium iron boron magnetic ring is formed, the stress of the neodymium iron boron magnetic ring is relieved through vibration, and the quality and the forming effect of the neodymium iron boron are improved.
Description
Technical Field
The invention relates to the technical field of hot press forming, in particular to a neodymium iron boron magnetic ring vacuum hot press device with a stress relief function.
Background
With the rapid development of high-performance permanent magnet motors, the requirements on the multipolar magnetic ring are also higher and higher, wherein the neodymium-iron-boron anisotropic magnet has magnetic properties superior to those of the neodymium-iron-boron isotropic magnet, and is widely paid attention to the industry.
At present, the preparation process of the NdFeB magnetic ring comprises the following steps: 1. filling the magnetic powder into a heated mold, and compressing and compacting the magnetic powder to obtain a preformed blank; 2. and placing the oriented preformed blank into a final forming die, and further compressing and compacting to obtain the anisotropic magnet.
In the existing manufacturing of the NdFeB magnetic ring, a plurality of devices are needed to be linked from feeding to taking out of a finished product, raw materials are pressed into a hot blank on one machine, and then the hot blank is processed into the finished product on a second piece of equipment. Such a process requires a plurality of workers to operate and to perform manual molding a plurality of times, resulting in high labor cost and low production efficiency; secondly, the product quality is uncontrollable and unstable due to multiple times of manual molding.
Disclosure of Invention
The invention aims to provide a neodymium iron boron magnetic ring vacuum hot pressing device with a stress relieving function, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides an attached stress relief function's neodymium iron boron magnetic ring vacuum hot press device, vacuum hot press device includes the base, install cope match-plate pattern and lower bolster on the base, the casing is installed in cope match-plate pattern and lower bolster outside, casing one end and pedestal connection, casing and cope match-plate pattern sliding connection, install feed mechanism and play a mechanism on the casing, ejection mechanism is installed to the lower bolster below, ejection mechanism is ejecting the finished product of neodymium iron boron magnetic ring in the lower bolster, install down the pneumatic cylinder on the lower bolster, the one end and the cope match-plate pattern of pneumatic cylinder are connected. The raw materials are infused into the molding cavity in the lower template from the feed inlet, the upper template and the lower template mutually cooperate to exert pressure, heat and pressurize the raw materials, so that the neodymium iron boron magnetic ring is molded in the upper template and the lower template, the lower template vibrates the raw materials while heating the raw materials, the raw materials are contacted more tightly through vibration, the gas in the raw materials is extruded, gaps between the raw materials and the inner wall of the molding cavity are filled, and after the neodymium iron boron magnetic ring is molded, the stress of the neodymium iron boron magnetic ring is eliminated through vibration, so that the quality and the molding effect of the neodymium iron boron are improved.
A bottom plate is arranged below the base;
the ejection mechanism comprises a material ejection part and a plurality of ejector rods, wherein an auxiliary plate is arranged on the material ejection part, the ejector rods are arranged on the auxiliary plate, one end of each ejector rod is positioned in the lower die plate, and a top plate is arranged at one end of each ejector rod;
the lower die plate is internally provided with a concentric outer ring and an inner ring, the inner ring is positioned in the outer ring, a forming cavity is formed between the outer ring and the inner ring, and the top plate is positioned between the outer ring and the inner ring;
and the upper template is provided with a pressing plate, and the pressing plate corresponds to the position of the forming cavity.
A sealing plate is arranged between the lower die plate and the outer ring, at least two outer vortex plates are arranged on the outer side of the outer ring, and a supporting plate is arranged on the inner wall of the lower die plate at a position corresponding to the outer vortex plates;
at least two inner vortex plates are arranged in the inner ring, support columns are arranged at the inner position of the inner ring of the lower die plate, and each inner vortex plate is positioned between two adjacent outer vortex plates;
and magnetic springs are slidably arranged between the outer vortex plate and the supporting plate and between the inner vortex plate and the supporting column, the center line of each magnetic spring is perpendicular to the outer vortex plate and the inner vortex plate, and each magnetic spring is electrically connected with an external control system. The magnetic spring is electrically connected with an external control system, the control system enables current to flow in the magnetic spring, the magnetic spring is a spring, when current flows through the spring, the spring generates a magnetic field, therefore, when current flows through the magnetic spring, the magnetic spring contracts under the action of the magnetic field, the control system controls the current which is fed into the magnetic spring, the current is enabled to be continuously increased from small to large and then is reduced from large to small, the magnetic field generated by the magnetic spring is enabled to be continuously increased and reduced, the number of magnetic induction wires around the magnetic spring is enabled to be continuously increased and reduced from small to large, and then the magnetic induction wires cut on the outer vortex plate and the inner vortex plate are enabled to be continuously increased and reduced, and then the outer vortex plate and the inner vortex plate heat under the action of electric vortex, and the outer ring and the inner ring heat generated by the outer vortex plate and the inner vortex plate heat the raw materials.
Two guide plates are arranged between the support plate and the outer vortex plate and between the inner vortex plate and the support column, one end of the magnetic spring is connected with the outer vortex plate or the inner vortex plate, the other end of the magnetic spring is provided with a carrier plate, and the carrier plate is in sliding connection with the guide plates.
The inner ring and the outer ring are hollow, the heat transfer plates are arranged in the outer ring and the inner ring, the heat transfer plates are of a spiral plate structure which is vertically arranged, and the outer ring and the inner ring are connected with a cooling system through pipelines. And the cooling system is used for infusing cooling liquid into the outer ring and the inner ring through the pipeline, and the cooling liquid slowly cools the neodymium-iron-boron magnetic ring after the neodymium-iron-boron magnetic ring is molded and needs demoulding.
The heat-insulating plate is characterized in that heat-insulating cylinders are arranged on the outer vortex plate and the inner vortex plate, heat-conducting columns are arranged on one sides of the outer vortex plate and the inner vortex plate, one end of each heat-conducting column is embedded in the heat transfer plate, one end of each heat-conducting column does not penetrate through the heat transfer plate, a screw is arranged in each heat-insulating cylinder, a driving plate is arranged at one end of each screw, the driving plates are positioned in the heat-conducting columns, a cavity is formed in each heat-conducting column, a shifting piece is formed in the inner wall of each cavity, gear teeth are arranged on the outer sides of the driving plates, and the shifting pieces are positioned in the corresponding gear grooves;
threaded holes are formed in the middle of the carrier plate, and one end of each screw rod penetrates through each threaded hole. The screw rod in this application is the screw rod of big pitch, and when the magnetic spring stretches out and draws back under the effect of magnetic field, the support plate is driven by the magnetic spring and slides on the baffle, and the screw rod rotates under the effect of screw hole, and the screw rod drives the driver plate and rotates in the heat conduction post, and the teeth of a cogwheel constantly stir the plectrum under the drive of driver plate, makes the plectrum take place vibrations, and the plectrum will shake and transmit on heat conduction post and outer loop/inner loop, and outer loop and inner loop shake raw materials or neodymium iron boron magnetic ring finished product; the heat conducting column and the heat transfer plate participate in heat transfer, and transfer heat from the outer vortex plate and the inner vortex plate to the other side of the outer ring and the inner ring.
The heat transfer plate is of an aluminum spiral plate structure.
The feeding mechanism is connected with the external feeding mechanism, and the feeding mechanism inputs raw materials into the forming cavity; the discharging mechanism is connected with the external blanking mechanism, and the discharging mechanism places finished products of the NdFeB magnetic rings on the blanking mechanism.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the steps from the filling of the raw materials into the forming cavity to the delivery of the finished neodymium iron boron magnetic ring are completed in the same device, so that the procedures of multiple transfer and multiple pressing are saved, the labor cost is saved, the production time is shortened, and the production efficiency is improved.
2. The raw materials are infused into the molding cavity in the lower template from the feed inlet, the upper template and the lower template mutually cooperate to exert pressure, heat and pressurize the raw materials, so that the neodymium iron boron magnetic ring is molded in the upper template and the lower template, the lower template vibrates the raw materials while heating the raw materials, the raw materials are contacted more tightly through vibration, the gas in the raw materials is extruded, gaps between the raw materials and the inner wall of the molding cavity are filled, and after the neodymium iron boron magnetic ring is molded, the stress of the neodymium iron boron magnetic ring is eliminated through vibration, so that the quality and the molding effect of the neodymium iron boron are improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic front view of the overall exterior structure of the present invention;
FIG. 2 is a schematic front view of the overall internal structure of the present invention;
FIG. 3 is a schematic view of the front view of the interior of the lower die plate of the present invention;
FIG. 4 is a schematic top view of the interior of the lower die plate of the present invention;
FIG. 5 is a schematic view of the front view of the outer ring of the present invention;
FIG. 6 is a schematic view of the outer ring half-section of the present invention;
FIG. 7 is a schematic diagram of a connection structure of a carrier and a guide plate according to the present invention;
fig. 8 is a schematic diagram of the connection between the outer vortex plate and the heat conducting column, screw rod of the present invention.
In the figure: 1. a base; 101. a material ejection piece; 102. a push rod; 103. a bottom plate;
2. a lower template; 201. an outer ring; 202. an inner ring; 203. a support plate; 204. an outer vortex plate; 205. an inner vortex plate; 206. a carrier plate; 207. a magnetic spring; 208. a guide plate; 209. a heat insulation cylinder; 210. a screw; 211. a heat conducting column; 212. a heat transfer plate; 213. a dial;
3. an upper template; 301. a pressing plate; 302. a pressing cylinder is pressed down;
4. a housing; 401. an air suction hole;
5. a feed mechanism;
6. and a piece discharging mechanism.
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.
Referring to fig. 1-8, the present invention provides the following technical solutions: the vacuum hot pressing device comprises a base 1, a bottom plate 103 is arranged below the base 1, an upper template 3 and a lower template 2 are arranged on the base 1, a shell 4 is arranged outside the upper template 3 and the lower template 2, one end of the shell 4 is fixed on the base 1 and connected with the shell 4 in a sliding manner, a feeding mechanism 5 and a piece discharging mechanism 6 are arranged on the shell 4, the feeding mechanism 5 is connected with an external feeding mechanism, and raw materials are put into a forming cavity by the feeding mechanism 5; the piece discharging mechanism 6 is connected with an external blanking mechanism, and the piece discharging mechanism 6 places finished products of the NdFeB magnetic rings on the blanking mechanism.
The lower die plate 2 is internally provided with a concentric outer ring 201 and an inner ring 202, the inner ring 202 is positioned inside the outer ring 201, and a forming cavity is formed between the outer ring 201 and the inner ring 202.
An ejection mechanism is arranged below the lower die plate 2 and ejects finished neodymium iron boron magnetic ring products in a forming cavity in the lower die plate 2, the ejection mechanism comprises a material ejection piece 101 and a plurality of ejector rods 102, auxiliary plates are arranged on the material ejection piece 101, the material ejection piece 101 is arranged on a bottom plate 103, the material ejection piece 101 is of a telescopic air bag structure, the ejector rods 102 are arranged on the auxiliary plates, one end of each ejector rod 102 is located in the lower die plate 2, one ends of the plurality of ejector rods 102 are connected with annular top plates jointly, and the top plates are located between an outer ring 201 and an inner ring 202.
The upper template 3 is provided with a pressing plate 301, the pressing plate 301 corresponds to the position of the forming cavity, the lower template 2 is provided with a pressing cylinder 302, the pressing cylinder 302 is a hydraulic cylinder, and one end of a telescopic rod of the pressing cylinder 302 is connected with the upper template 3.
The shell 4 is provided with an air suction hole 401, the air suction hole 401 is connected with an external vacuumizing device, and the vacuumizing device is used for sucking air between the lower template 2 and the upper template 3, so that a vacuum environment is formed between the lower template 2 and the upper template 3. The feeding mechanism 5 and the piece discharging mechanism 6 are respectively provided with a valve mechanism, the valve mechanisms are used for blocking channels, and the valve mechanisms are used for sealing the channels communicated with the inside of the shell 4 through the feeding mechanism 5 and the piece discharging mechanism 6, so that external air cannot enter the inside of the shell 4.
A sealing plate is arranged between the lower die plate 2 and the outer ring 201, six outer vortex plates 204 are arranged on the outer side of the outer ring 201, and a supporting plate 203 is arranged on the inner wall of the lower die plate 2 at a position corresponding to the outer vortex plates 204;
six inner vortex plates 205 are arranged in the inner ring 202, support columns are arranged at the inner position of the inner ring 202 on the lower die plate 2, a cover plate is arranged at the upper end of the inner ring 202, and each inner vortex plate 205 is positioned between every two adjacent outer vortex plates 204;
two guide plates 208 are arranged between the support plate 203 and the outer vortex plate 204 and between the inner vortex plate 205 and the support column, a magnetic spring 207 is slidably arranged between the two guide plates 208, one end of the magnetic spring 207 is respectively connected with the outer vortex plate 204 and the inner vortex plate 205, a carrier plate 206 is arranged at the other end of the magnetic spring 207, the carrier plate 206 is slidably connected with the guide plate 208, the center line of the magnetic spring 207 is perpendicular to the outer vortex plate 204 and the inner vortex plate 205, and the magnetic spring 207 is electrically connected with an external control system.
The magnetic spring 207 is electrically connected with an external control system, when current flows in the magnetic spring 207 and current flows in the magnetic spring 207, the magnetic spring 207 contracts under the action of a magnetic field, the control system controls the current flowing in the magnetic spring 207, the current is continuously changed from small to large and then from large to small, the magnetic field generated by the magnetic spring 207 is continuously changed from large to small, the number of magnetic induction wires around the magnetic spring 207 is continuously changed from small to large and then from small to small, and then magnetic induction wires cut on the outer vortex plate 204 and the inner vortex plate 205 are continuously changed to large and small, and then the outer vortex plate 204 and the inner vortex plate 205 heat under the action of electric vortex, and the outer ring 201 and the inner ring 202 heat raw materials through heat generated by the outer vortex plate 204 and the inner vortex plate 205.
The inner part of the outer ring 201 and the inner ring 202 are hollow, the heat transfer plates 212 are arranged in the outer ring 201 and the inner ring 202, the heat transfer plates 212 are of a spiral plate structure which is vertically arranged, and the heat transfer plates 212 are of a spiral plate structure which is made of aluminum.
The outer ring 201 and the inner ring 202 are connected with the cooling system through pipelines. The cooling system infuses cooling liquid into the outer ring 201 and the inner ring 202 through pipelines, and the cooling liquid slowly cools the neodymium-iron-boron magnetic ring after the neodymium-iron-boron magnetic ring is molded and needs demoulding.
The heat insulation cylinder 209 is arranged on the outer vortex plate 204 and the inner vortex plate 205, a screw 210 is arranged in the heat insulation cylinder 209 through a bearing, a heat conduction column 211 is arranged on one side of the outer vortex plate 204 and one side of the inner vortex plate 205, a cavity is formed in the heat conduction column 211, a poking piece is formed on the inner wall of the cavity, one end of the heat conduction column 211 is embedded in the heat transfer plate 212, one end of the heat conduction column 211 does not penetrate through the heat transfer plate 212, a driving plate 213 is arranged at one end of the screw 210, the driving plate 213 is positioned in the heat conduction column 211, gear teeth are arranged on the outer side of the driving plate 213, and the poking piece is positioned in a tooth slot;
a threaded hole is formed in the middle of the carrier plate 206, and one end of the screw 210 passes through the threaded hole. In the embodiment, the screw 210 is a screw with a large pitch, when the magnetic spring 207 stretches under the action of a magnetic field, the carrier plate 206 is driven by the magnetic spring 207 to slide on the guide plate 208, the screw 210 rotates under the action of a threaded hole, the screw 210 drives the driving plate 213 to rotate in the heat conducting column 211, the gear teeth continuously stir the stirring plate under the driving of the driving plate 213, the stirring plate vibrates, the stirring plate transmits vibration to the heat conducting column 211 and the outer ring 201/inner ring 202, and the outer ring 201 and the inner ring 202 vibrate raw materials or finished products of the NdFeB magnetic ring; the heat conducting columns 211 and the heat transfer plates 212 participate in heat transfer, transferring heat from the outer and inner scroll plates 204 and 205 to the other side of the outer and inner rings 201 and 202.
The working principle of the invention is as follows:
the feeding mechanism 5 is connected with an external feeding mechanism, the feeding mechanism 5 inputs raw materials into a forming cavity, namely, between the outer ring 201 and the inner ring 202, after feeding is completed, the valve mechanism seals a channel communicated with the inside of the shell 4 between the feeding mechanism 5 and the part discharging mechanism 6, then the vacuumizing device works to vacuumize air in the shell 4, and then the pressing cylinder 302 pulls the upper die plate 3 to enable the pressing plate 301 to be embedded into the forming cavity and squeeze the raw materials in the forming cavity.
When current flows through the magnetic spring 207, the magnetic spring 207 contracts under the action of a magnetic field, the control system controls the magnitude of the current flowing into the magnetic spring 207, the current is continuously increased from small to large and then is reduced from large to small, the magnetic field generated by the magnetic spring 207 is continuously increased and reduced, the number of magnetic induction lines around the magnetic spring 207 is continuously increased and then is reduced from small to large, the magnetic induction lines cut on the outer vortex plate 204 and the inner vortex plate 205 are continuously increased and reduced, and the outer vortex plate 204 and the inner vortex plate 205 generate heat under the action of eddy current, so that the outer ring 201 and the inner ring 202 heat raw materials through heat generated by the outer vortex plate 204 and the inner vortex plate 205.
When the magnetic spring 207 stretches out and draws back under the action of a magnetic field, the carrier plate 206 is driven by the magnetic spring 207 to slide on the guide plate 208, the screw 210 rotates under the action of the threaded hole, the screw 210 drives the driving plate 213 to rotate in the heat conducting column 211, the gear teeth continuously stir the stirring sheet under the driving of the driving plate 213, the stirring sheet vibrates, the stirring sheet transmits vibration to the heat conducting column 211 and the outer ring 201/inner ring 202, and the outer ring 201 and the inner ring 202 vibrate the raw materials or the finished product of the NdFeB magnetic ring.
After the raw materials are processed into neodymium iron boron magnetic rings, the cooling system infuses cooling liquid into the outer ring 201 and the inner ring 202 through pipelines, the cooling liquid slowly cools the neodymium iron boron magnetic rings, in the process, current is still introduced into the magnetic springs 207, the outer vortex plate 204 and the inner vortex plate 205 continue to generate heat, and the cooling liquid is heated through the heat, so that the damage to the quality of the neodymium iron boron magnetic rings caused by the too fast cooling of the outer ring 201 and the inner ring 202 is prevented. While heating the cooling liquid, the screw 210 rotates, the driving plate 213 drives the driving plate through gear teeth, so that the outer ring 201 and the inner ring 202 vibrate, and the neodymium iron boron magnetic ring is separated from the outer ring 201 and the inner ring 202 through stress relief and demoulding of the neodymium iron boron magnetic ring by vibration.
The upper die plate 3 and the lower die plate 2 are separated under the drive of the pressing cylinder 302, the valve mechanism opens the channel, then the ejector 101 stretches under the control of the control system, the neodymium iron boron magnetic ring is ejected out of the forming cavity through the ejector rod 102, and the finished neodymium iron boron magnetic ring is sent to the blanking mechanism by the ejection mechanism 6.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides an attached stress relief function's neodymium iron boron magnetism ring vacuum hot press device which characterized in that: the vacuum hot pressing device comprises a base (1), an upper template (3) and a lower template (2) are mounted on the base (1), a shell (4) is mounted on the outer sides of the upper template (3) and the lower template (2), one end of the shell (4) is connected with the base (1), the shell (4) is in sliding connection with the upper template (3), a feeding mechanism (5) and a piece discharging mechanism (6) are mounted on the shell (4), an ejection mechanism is mounted below the lower template (2), neodymium iron boron magnetic ring finished products in the lower template (2) are ejected out by the ejection mechanism, a lower pressing cylinder (302) is mounted on the lower template (2), and one end of the lower pressing cylinder (302) is connected with the upper template (3);
a bottom plate (103) is arranged below the base (1);
the ejection mechanism comprises a material ejection part (101) and a plurality of ejector rods (102), wherein auxiliary plates are arranged on the material ejection part (101), the ejector rods (102) are arranged on the auxiliary plates, one end of each ejector rod (102) is positioned in the lower die plate (2), and a top plate is arranged at one end of each ejector rod (102);
a pressing plate (301) is arranged on the upper die plate (3), and the pressing plate (301) corresponds to the position of the forming cavity;
the lower die plate (2) is internally provided with a concentric outer ring (201) and an inner ring (202), the inner ring (202) is positioned inside the outer ring (201), a forming cavity is formed between the outer ring (201) and the inner ring (202), and the top plate is positioned between the outer ring (201) and the inner ring (202);
a sealing plate is arranged between the lower die plate (2) and the outer ring (201), at least two outer vortex plates (204) are arranged on the outer side of the outer ring (201), and a supporting plate (203) is arranged on the inner wall of the lower die plate (2) at a position corresponding to the outer vortex plates (204);
at least two inner vortex plates (205) are arranged in the inner ring (202), support columns are arranged at the inner position of the inner ring (202) of the lower die plate (2), and each inner vortex plate (205) is positioned between two adjacent outer vortex plates (204);
magnetic springs (207) are slidably arranged between the outer vortex plate (204) and the supporting plate (203) and between the inner vortex plate (205) and the supporting column, the center line of each magnetic spring (207) is perpendicular to the outer vortex plate (204) and the inner vortex plate (205), and each magnetic spring (207) is electrically connected with an external control system;
two guide plates (208) are arranged between the support plate (203) and the outer vortex plate (204) and between the inner vortex plate (205) and the support column, one end of the magnetic spring (207) is connected with the outer vortex plate (204) or the inner vortex plate (205), the other end of the magnetic spring (207) is provided with a carrier plate (206), and the carrier plate (206) is in sliding connection with the guide plate (208);
the inner part of the outer ring (201) and the inner ring (202) are hollow, heat transfer plates (212) are arranged in the outer ring (201) and the inner ring (202), the heat transfer plates (212) are of a spiral plate structure which is vertically arranged, and the outer ring (201) and the inner ring (202) are connected with a cooling system through pipelines;
the heat-insulating plate is characterized in that heat-insulating cylinders (209) are arranged on the outer vortex plate (204) and the inner vortex plate (205), heat-conducting columns (211) are arranged on one sides of the outer vortex plate (204) and the inner vortex plate (205), one ends of the heat-conducting columns (211) are embedded in the heat transfer plates (212), one ends of the heat-conducting columns (211) do not penetrate through the heat transfer plates (212), screw rods (210) are arranged in the heat-insulating cylinders (209), a driving plate (213) is arranged at one ends of the screw rods (210), the driving plate (213) is arranged in the heat-conducting columns (211), cavities are formed in the heat-conducting columns (211), poking sheets are arranged on the inner walls of the cavities, gear teeth are arranged on the outer sides of the driving plate (213), and the poking sheets are arranged in tooth grooves;
threaded holes are formed in the middle of the carrier plate (206), and one end of the screw rod (210) penetrates through the threaded holes.
2. The neodymium iron boron magnetic ring vacuum hot pressing device with a stress relief function according to claim 1, wherein: the heat transfer plate (212) is a spiral plate structure of aluminum.
3. The neodymium iron boron magnetic ring vacuum hot pressing device with a stress relief function according to claim 1, wherein: the feeding mechanism (5) is connected with the external feeding mechanism, and the feeding mechanism (5) inputs raw materials into the forming cavity;
the discharging mechanism (6) is connected with an external blanking mechanism, and the discharging mechanism (6) places the finished product of the NdFeB magnetic ring on the blanking mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210619759.2A CN115138845B (en) | 2022-06-02 | 2022-06-02 | Neodymium iron boron magnetic ring vacuum hot press device with stress elimination function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210619759.2A CN115138845B (en) | 2022-06-02 | 2022-06-02 | Neodymium iron boron magnetic ring vacuum hot press device with stress elimination function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115138845A CN115138845A (en) | 2022-10-04 |
| CN115138845B true CN115138845B (en) | 2024-03-29 |
Family
ID=83406152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210619759.2A Active CN115138845B (en) | 2022-06-02 | 2022-06-02 | Neodymium iron boron magnetic ring vacuum hot press device with stress elimination function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115138845B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277082A (en) * | 1999-06-09 | 2000-12-20 | 庞淼 | Hot forging technology for ceramic blade, hard alloy cubic boron nitride bit and powder metallurgy product |
| CN104923779A (en) * | 2015-07-07 | 2015-09-23 | 上海平野磁气有限公司 | One-die-multiple-output ring-type magnet blank isobaric floating pressing die and method |
| CN105047395A (en) * | 2015-08-14 | 2015-11-11 | 杭州史宾纳机械设备有限公司 | Full-automatic hot-pressing and one-stage molding equipment for neodymium-iron-boron anisotropic multi-pole magnet ring |
| CN204818055U (en) * | 2015-06-29 | 2015-12-02 | 内蒙古包钢稀土磁性材料有限责任公司 | Magnetic induced shrinkage or elongation on powder metallurgy moulding press actuates device |
| CN105185561A (en) * | 2015-08-26 | 2015-12-23 | 廊坊京磁精密材料有限公司 | Compression molding method of neodymium-iron-boron magnet |
| CN205967410U (en) * | 2016-08-30 | 2017-02-22 | 锦州博锐源创新科技有限公司 | Anisotropic neodymium iron boron magnetism encircles vacuum hot press unit |
| CN108122653A (en) * | 2017-12-21 | 2018-06-05 | 宁波金轮磁材技术有限公司 | A kind of high-performance neodymium iron boron magnetic materials containing dysprosium and preparation method thereof |
| CN108555287A (en) * | 2018-03-09 | 2018-09-21 | 天通控股股份有限公司 | Top-drop-down one mould bases in a kind of combined type |
| CN110666161A (en) * | 2019-10-18 | 2020-01-10 | 宁波韵升磁体元件技术有限公司 | Control method for improving single-weight consistency of neodymium iron boron green bodies |
| CN113927029A (en) * | 2021-08-26 | 2022-01-14 | 廊坊京磁精密材料有限公司 | Neodymium iron boron magnet orientation pressing device and method thereof |
-
2022
- 2022-06-02 CN CN202210619759.2A patent/CN115138845B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277082A (en) * | 1999-06-09 | 2000-12-20 | 庞淼 | Hot forging technology for ceramic blade, hard alloy cubic boron nitride bit and powder metallurgy product |
| CN204818055U (en) * | 2015-06-29 | 2015-12-02 | 内蒙古包钢稀土磁性材料有限责任公司 | Magnetic induced shrinkage or elongation on powder metallurgy moulding press actuates device |
| CN104923779A (en) * | 2015-07-07 | 2015-09-23 | 上海平野磁气有限公司 | One-die-multiple-output ring-type magnet blank isobaric floating pressing die and method |
| CN105047395A (en) * | 2015-08-14 | 2015-11-11 | 杭州史宾纳机械设备有限公司 | Full-automatic hot-pressing and one-stage molding equipment for neodymium-iron-boron anisotropic multi-pole magnet ring |
| CN105185561A (en) * | 2015-08-26 | 2015-12-23 | 廊坊京磁精密材料有限公司 | Compression molding method of neodymium-iron-boron magnet |
| CN205967410U (en) * | 2016-08-30 | 2017-02-22 | 锦州博锐源创新科技有限公司 | Anisotropic neodymium iron boron magnetism encircles vacuum hot press unit |
| CN108122653A (en) * | 2017-12-21 | 2018-06-05 | 宁波金轮磁材技术有限公司 | A kind of high-performance neodymium iron boron magnetic materials containing dysprosium and preparation method thereof |
| CN108555287A (en) * | 2018-03-09 | 2018-09-21 | 天通控股股份有限公司 | Top-drop-down one mould bases in a kind of combined type |
| CN110666161A (en) * | 2019-10-18 | 2020-01-10 | 宁波韵升磁体元件技术有限公司 | Control method for improving single-weight consistency of neodymium iron boron green bodies |
| CN113927029A (en) * | 2021-08-26 | 2022-01-14 | 廊坊京磁精密材料有限公司 | Neodymium iron boron magnet orientation pressing device and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115138845A (en) | 2022-10-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105436605B (en) | A kind of tubing transmitting device processed for electrothermal tube | |
| CN207709829U (en) | A kind of novel vertical multi-station die casting machine | |
| CN107415173B (en) | A kind of easy-to-dismount injection mold with interior overhead structure | |
| CN114709065A (en) | Accelerated cooling conveniently-taken material magnet molding device | |
| CN107825678A (en) | A kind of high quality is easy to the injection mold of cooling and shaping | |
| CN115138845B (en) | Neodymium iron boron magnetic ring vacuum hot press device with stress elimination function | |
| CN111261398B (en) | Hot pressing device, hot pressing system and preparation method for preparing neodymium iron boron magnetic ring | |
| CN108941053B (en) | Dust removing device for motor shell | |
| CN208644615U (en) | A kind of dress wiring machine of sensor base | |
| CN204991436U (en) | Full -automatic hot pressing one shot forming equipment of multipolar magnetic ring of neodymium iron boron anisotropic | |
| CN113732284B (en) | Target hot isostatic pressing forming method and equipment | |
| CN214354402U (en) | Quick tablet forming equipment | |
| CN205967410U (en) | Anisotropic neodymium iron boron magnetism encircles vacuum hot press unit | |
| CN114939642A (en) | Vertical forming machine | |
| CN212472249U (en) | Shell injection molding device | |
| CN114977698A (en) | Glue pouring equipment for motor stator winding | |
| CN212884889U (en) | Safe and reliable core shooter | |
| CN209738230U (en) | Plastic casing injection molding device for earphone production | |
| CN216182528U (en) | Medical infusion pump body injection mold | |
| CN112872198A (en) | Steel setting device of steel goods processing usefulness | |
| CN106486280B (en) | The newly net forming processing unit (plant) and method of a kind of anisotropy magnetic Nd-Fe-B ring | |
| CN214677429U (en) | Automatic forming equipment for health-care tabletting candies | |
| CN213166715U (en) | Auxiliary irrigation equipment for mold machining | |
| CN216001569U (en) | Powder compression molding device | |
| CN220163314U (en) | Nanoscale heat insulation material production device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |