CN104923779B - One mould has more the isobaric floating compacting tool set of ring magnet embryo material and method - Google Patents
One mould has more the isobaric floating compacting tool set of ring magnet embryo material and method Download PDFInfo
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Abstract
One mould has more the isobaric floating compacting tool set of ring magnet embryo material and method.After charging, downwards, the multiple upper die punch connected by press mechanisms such as upper moulds make the pressure of multiple upper die punch keep equal to cope plate with pressure principle and by hydraulic oil pressure is transmitted everywhere in fluid；Lower each garden inner chamber of former is provided with taper platform wall；During compacting, bottom punch head is motionless, and upper die punch is pushed, and each punch pressure is impartial；While upper and lower stamping head carries out pressurize, lower template interlocks magnetizing coil, lower former, plug uplink synchronization, lower former is transversal to the generation of ring magnet embryo material to be extruded towards the garden heart, and coil magnetic field center carries out scanning of fully magnetizing to being pressed magnet embryo material, is realized to float and is suppressed.It overcomes a mould multiple unbalanced problems of submodule chamber press power in having more, it is ensured that mould is suppressed ring-like embryo material and completed to magnetize in coil magnetic field the whole floating pressing process that-compacting-demagnetize；Compressing inside workpiece magnetic polarity arrangement is uniform, mass density is consistent, improves magnetic shaping compacting efficiency.
Description
Technical field
The present invention relates to powder pressing under magnetic field press, a particularly a kind of mould has more the equipressure floating compacting of ring magnet embryo material
Mould and method.
Background technology
In recent years, all kinds of rare earth rubidium iron boron powders suppress, sinter in specific magnetic field, cutting into slices, mill generation it is crystalline dilute
The native ring-like incorgruous magnet of alloy, is largely used to the motor, the loudspeaker of electroacoustic industry and other electric fields of machine field
Device etc..Current magnetic material industry, which prepares loop type material application, mainly to be had：One mould one goes out to be carried out to powder magnetic by magnetic field
Property radial oriented after it is compressing, with improve prepare part magnetic energy quality, maximum weak point is that production efficiency is not high；For
Compacting production efficiency is improved, the method that a mould has more, i.e., one compacting is typically carried out small-sized workpiece as far as possible in compacting
The Workpiece shaping cavity that the interior arrangement of mould is more than two, once suppresses n (die cavity number) individual workpiece, and efficiency improves n times.And band
It is difficult once to suppress each even density in n (die cavity number) workpiece unanimously that the problem of coming, which is, produces each ring-like embryo
Material workpiece density has difference；Same ring-like embryo material inside workpiece density also can be variant；In follow-up sintering process, by
Enter in the ring-like embryo material of multiple different densities in same temperature and the sintering process of time, ring-like embryo material magnetic energy quality can be produced
Unstable, magnetic property and uniformity go to pot；And same ring-like embryo material is variant because of internal density, then in sintering process because shrinking
Rate is different and ring magnet embryo material can be caused to ftracture；These magnetic properties for all making radiation ring and yield rate reduction, cost of manufacture increase
Plus.It is even more serious because Density inhomogeneity can have a strong impact on the overall magnetic property of ring magnet.
The content of the invention
The isobaric floating compacting tool set of ring magnet embryo material and method are had more it is an object of the invention to provide an a kind of mould, it is main
Multiple unbalanced problems of submodule chamber press power during a mould has more are solved, complete to fill to ensure that mould is compressed in coil magnetic field
The floating compacting of magnetic (magnetic)-compacting-demagnetization (ring-like embryo material) whole process；Reach the inside workpiece magnetic pole for being pressed shaping
Property arrangement is uniform, mass density is consistent so that magnetic shaping compacting efficiency is improved and is achieved.
To achieve the above object, the technical scheme is that：
An a kind of mould has more the isobaric floating compacting tool set of ring magnet embryo material, it is characterised in that：It includes：
Upper mould is made up of press mechanism, upper die punch such as cope plate, upper moulds；The press mechanisms such as upper mould, it can be passed with hydraulic oil
Pressure principle everywhere is passed in pressure and fluid, the pressure differential of each pressure head is balanced, the multiple punch pressures of mould is kept equal；
Press mechanism such as mould is connected to below the cope plate that can be slided up and down on this, and the press mechanism such as upper mould each pressure head respectively with upper punch
Head connection；The upper die punch section is circular ring type；
The lower section of the press mechanisms such as upper mould and upper die punch has lower die structure；Its lower die structure include lower former, lower template,
Bottom punch head, low punch installing plate, base template, plug, plug installing plate and base deck, base guide pillar；The lower female mold
There is the through hole corresponding to upper die punch quantity and position, lower former is fixedly installed in lower template, lower template, which also has, to be corresponded to
Upper die punch quantity and the through hole of position, lower former are installed to after lower template, the overlapping insertion of through hole of lower former and lower template, are led to
Slidable circular ring type bottom punch head is inserted in hole inner chamber；The circular ring type bottom punch head central through hole, the upper mould of bottom punch head correspondence
Drift quantity and position are fixed on low punch installing plate, and low punch installing plate is connected on base template, low punch installing plate
Also there is the through hole corresponding to upper die punch quantity and upper die punch lead to the hole site with base template, bottom punch head after installation, under
The overlapping insertion of through hole of drift installing plate, base template, slidable plug is inserted in through hole inner chamber；The upper mould of plug correspondence
Drift quantity and position are fixed on plug installing plate, and plug installing plate is connected on base deck；It is solid above the base deck
Surely 4 vertical feet guide pillars are connected, base template is provided with 4 guide pillar positioning shaft sleeve holes, and 4 base guide pillars are upward through base mold
Behind plate positioning shaft sleeve hole, upper end is fixedly connected on lower template, makes base deck, plug installing plate, plug, base guide pillar, lower mould
Plate disjunctor, 4 guide pillars can synchronously be slided up and down in base template positioning shaft sleeve hole, and the corresponding plug of quantity and position can be the bottom of at
Slided up and down in the endoporus of seat template, circular ring type bottom punch head and upper die punch；
One is fixed on the mould bases in gantry base, and the mould bases dominates post, base template by frame top plate, 4 vertical formworks
Composition, the upper end that 4 vertical formworks dominate post is fixedly connected with frame top plate, and lower end is fixedly connected on base template；4 templates
The be parallel to each other cope plate that can be slided up and down, magnetic conductive board, lower template, cope plate connection frame top plate center are installed on leading post
Drive mechanism；Magnetizing coil and magnetic conductive board are fixedly installed in the lower template, lower former is located at magnetizing coil inner chamber and is connected to
In lower template；Drive mechanism below base deck connection frame.
A described mould has more the isobaric floating compacting tool set of ring magnet embryo material, it is characterised in that：The lower former have pair
Should be in being provided with a garden taper platform wall in the garden through hole of pressure head quantity and position, garden through hole, lower former is in coil and is arranged on down
In template；The lower end of the bottom punch head is fixed on base template by low punch installing plate；The base deck upper end passes through core
Rod installing plate connects quantity and position corresponds to the plug of through hole.
A described mould has more the isobaric floating compacting tool set of ring magnet embryo material, it is characterised in that：The press mechanism such as mould on this
Including screwed plug, integrated package, pressure head, check valve and pressing plate；Wherein：Described integrated package upper lateral has provided trapped fuel chamber, deposits
Connect check valve, another end opening connection screw thread at oil pocket one end open to block up, the longitudinally disposed some works in described integrated package bottom
Make chamber, pressure head is loaded in working chamber, pressure head can be vertically moved in working chamber；Described each working chamber leading by its top
Oilhole is connected with trapped fuel chamber trapped fuel chamber；Described integrated package bottom, which is connected with, can place restrictions on the pressing plate that pressure head continues to move down, respectively
Accomplish equalization in the section of working chamber and pressure head.
A described mould has more the isobaric floating compacting tool set of ring magnet embryo material, it is characterised in that：The integrated package bottom court
On circular work chamber is uniformly outputed into biserial.
A described mould has more the isobaric floating compacting tool set of ring magnet embryo material, it is characterised in that：The pressure head top and the bottom
Have and load guide collar in groove embedding sealing circle, intermediate channel.Pressure head top and the bottom are because there is sealing ring so that hydraulic oil will not be from
Working chamber is leaked；Moved vertically above and below the guide collar loaded in pressure head intermediate channel, control pressure head holding.
A described mould has more the isobaric floating compacting tool set of ring magnet embryo material, it is characterised in that：The pressing plate passes through screw
Fixed to integrated package bottom.
A described mould has more the isobaric floating compacting tool set of ring magnet embryo material, it is characterised in that：In each hole of lower former
Chamber insertion, hole internal upper part point can insert upper die punch and slide up and down, and lower part can insert bottom punch head and slide up and down, each hole inner chamber
Centre is provided with the taper platform wall of garden platform shape.
An a kind of mould has more the isobaric floating drawing method of ring magnet embryo material, it is characterised in that：It is using as described above
Mould is implemented, and comprises the concrete steps that：
After charging, downwards, the multiple upper die punch connected by press mechanisms such as upper moulds are used presses cope plate everywhere in fluid
Strong principle and pressure is transmitted by hydraulic oil, the pressure of multiple upper die punch is kept equal；During compacting, bottom punch head is not
Dynamic, upper die punch is pushed, and each punch pressure is impartial；While upper and lower stamping head carries out pressurize, lower template interlocks the line that magnetizes
Circle, lower former, plug uplink synchronization, the taper platform wall of lower each inner chamber of former are transversal towards the garden heart to the generation of ring magnet embryo material
Extruding, meets coil magnetic field center and carries out scanning of sufficiently magnetizing to being pressed magnet embryo material, reach and realize floating drawing method.
A described mould has more the isobaric floating drawing method of ring magnet embryo material, it is characterised in that：Before charging, base deck
Mechanism effect driven is run up, and drives lower former, plug highly to stop needed for rising to magnet embryo material product, lower former
The toroidal cavity of depth needed for each die cavity is formed.
A described mould has more the isobaric floating drawing method of ring magnet embryo material, it is characterised in that：Float after the completion of suppressing,
Lower template interlocks magnetizing coil, lower former, plug and continues the press mechanism such as mould in DL synchronization, cope plate drive, in upper die punch
OK, mould is resetted, and compressing magnet embryo material is demolded.
Compared with the conventional method, inventive die and method are a kind of ring magnet embryo materials of powder shaping press to the present invention
Isobaric floating compacting tool set and method, apply in powder shaping press, thoroughly solve a mould and have more ring-like embryo material in compacting
The problem of Workpiece shaping is difficult to reach consistent in density and ensure downtrodden ring-like embryo material workpiece all the time in magnetic field center most
The floating drawing method of best placement,
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In Fig. 1：1- frames, 101- gantry bases, 201- cope plates, 202- templates dominate post, and 203- magnetic conductive boards, 204- fills
Magnetic coil, 205- lower templates, 206- base templates, 207- base guide pillars, 208- base decks, the press mechanism, 501- such as upper moulds of 3-
Former under upper die punch, 502-, 503- bottom punch heads, 504- low punch installing plates, 505- plugs, 506- plug installing plates.
Fig. 2 is upper die and lower die structural representation in the present invention.
Fig. 3 is the partial sectional view of mould under the present invention.
Fig. 4 is Fig. 2 lateral plan.
In Fig. 2,3,4：Former under the press mechanisms such as the upper moulds of 3-, 501- upper die punch, 502-, 502A- gardens taper platform wall, 503-
Bottom punch head, 504- low punch installing plates, 505- plugs, 506- plug installing plates, 600- magnet embryo materials.
Fig. 5 is the structural representation of the press mechanism such as upper mould in the present invention.
In Fig. 5：301- screwed plugs, 302- integrated packages, 303- pressure heads, 304- oil guiding holes, 305- sealing rings, 306- is oriented to
Circle, 307- check valves, 308- trapped fuel chambers, 309- working chambers, 310- pressing plates, 311- screws.
Embodiment
Fig. 1-5 are referred to, ring magnet embryo material etc. is had more the invention discloses an a kind of mould for powder pressing under magnetic field press
Press floating compacting tool set.It includes：
The press mechanism such as mould 3 on one, it can transmit in pressure and fluid pressure principle everywhere with hydraulic oil, and balance is each
The pressure differential of pressure head, makes the multiple punch pressures of mould keep equal.Press mechanism such as mould 3 includes screwed plug 301, integrated package on this
302nd, pressure head 303, check valve 307 and pressing plate 310；Wherein：The described upper lateral of integrated package 302 has provided trapped fuel chamber 308, deposits
Check valve 307, the other end (center position on the upper side) opening connection screw thread stifled 301, described collection are connected at the one end open of oil pocket 308
The blocking longitudinally disposed some working chambers 309 (such as 8) in 302 bottom, load (8) pressure head 303, pressure head 303 in working chamber 309
It can be vertically moved in working chamber 309；Oil guiding hole 304 and trapped fuel chamber trapped fuel chamber that described each working chamber 309 passes through its top
308 connections；The described bottom of integrated package 302, which is connected with, can place restrictions on the pressing plate 310 that pressure head 303 continues to move down, each working chamber
309 and the section of pressure head 303 accomplish equalization.Described each pressure head 303 is connected with upper die punch 501 respectively.
The press mechanisms 3 such as the upper mould of the present invention pour into hydraulic oil, trapped fuel chamber in use, opening check valve 307 to trapped fuel chamber 308
Hydraulic oil in 308 applies pressure by the oil guiding hole 304 on working chamber 309 to each pressure head 303, forces it to move downward, directly
To the stop by pressing plate 310；Because the effect of hydraulic pressure transfer, and the section of each working chamber 309 and pressure head 303 are impartial, make
Pressure head 303 pressure be balanced to it is equal.Then, the pressure of pressed powder is impartial all the time in each die cavity, also allows for
The embryo material density of powder compacting reaches unanimously in each die cavity.Check valve 307 is then closed, stifled 301 discharge air is unscrewed simultaneously
Tightened again after pressure release.Pressure head 303 is connected with upper die punch 501, and when powder press works, pressure head 303 is by formpiston to powder
The passback elastic force suppressed, pressure head starts to the contract of working chamber 309.Due to adding powder amount to accomplish in the membrane cavity of mould
Equally, the elastic force being subject to when each pressure head is suppressed also can be inconsistent, but the elastic force of pressure head is sent to after trapped fuel chamber 308, due to
The effect of hydraulic pressure transfer, and the section of each working chamber 309 and pressure head 303 are impartial so that the pressure of pressure head 303 is balanced to phase
Deng.
As the preferred embodiment of the press mechanisms such as upper mould 3, circle is uniformly outputed in the described bottom of integrated package 302 into biserial upward
Working chamber 209, so advantageously forms more operating points.
As the preferred embodiment of the press mechanisms such as upper mould 3, there is groove embedding sealing circle 305 the described top and the bottom of pressure head 303, in
Load guide collar 306 in portion's groove.The top and the bottom of pressure head 303 are because there is sealing ring 305 so that hydraulic oil will not be let out from working chamber
Leakage；Moved vertically above and below the guide collar 306 loaded in pressure head intermediate channel, control pressure head holding.
As the preferred embodiment of the press mechanisms such as upper mould 3, described pressing plate 310 is fixed to integrated package 302 by screw 311
Bottom.
As another part of mould, the lower section tool of the press mechanism such as mould 3 and upper die punch 501 (section is circular ring type) on this
There is lower die structure.As shown in Figure 1, 2, 3：The lower die structure include lower former 502, bottom punch first 503, low punch installing plate 504,
The correspondence quantity of pressure head 303 (8) and plug 505, the plug installing plate 506 of position.Lower former 502, which has, corresponds to pressure head 303
Quantity (8) and the through hole of position, the lower former 502 are installed in lower template 205, and the lower template 205, which also has, corresponds to pressure
First 303 quantity (8) and the through hole of position, lower former 502 are installed to after lower template 205, lower former 502 and lower template 205
Slidable circular ring type bottom punch first 503 (totally 8), the bottom punch first 503 are inserted in the overlapping insertion of (8) through hole, through hole
Lower end be fixed on by low punch installing plate 504 on base template 206, the base template 206 is fixed by base guide pillar 207
The top of gantry base 101 is arranged on, is additionally provided with what is passed through by base guide pillar 207 between the gantry base 101 and base template 206
Base deck 208, the upper end of base deck 208 connects quantity (8) by plug installing plate 506 and position corresponds to through hole (8
It is individual) plug 505, the plug 505 can be carried out by the drive of base deck 208 it is up and down, and can be in circular ring type bottom punch
First 503 and circular ring type upper die punch 501 endoporus in slide.
As a kind of preferred structure, the lower former, which has in the garden through hole corresponding to pressure head quantity and position, garden through hole, to be set
There is a garden taper platform wall, lower former is in coil and is arranged in lower template；Installed by low punch the lower end of the bottom punch head
Plate is fixed on base template；The base deck upper end connects quantity by plug installing plate and position corresponds to the core of through hole
Rod.
Inventive die includes setting (4) mould around a frame 1 being fixed in gantry base 101, the top plate of frame 1
Plate dominates post 202, the template dominate be provided with post 202 cope plate 201 that can be slided up and down that is parallel to each other, magnetic conductive board 203,
Lower template 205, the dynamicliquid pressure oil cylinder at the top plate center of 201 connection frame of cope plate 1；4 base guide pillars 207 went here and there base template
206 4 positioning shaft sleeve holes, base guide pillar 207, the upper end of base template 206 connection lower template 205, lower end connect base top plate
208, lower template 205, base template 206 and base deck 208 are parallel to each other, and 4 base guide pillars 207 can be synchronous in base template
Slided up and down in 206 positioning shaft sleeves, base deck 208 connects dynamicliquid pressure oil cylinder below.It is fixedly installed and fills in the lower template 205
Magnetic coil 204, the lower former 502 is located at the inner chamber of magnetizing coil 204.
A mould is carried out using inventive die and has more the isobaric floating drawing method of ring magnet embryo material, is comprised the following steps：
The effect of the mechanism driven of base deck 208 is run up, and drives lower former 502, plug 505 to rise to magnet embryo material
Height stops needed for product, the toroidal cavity of depth needed for each die cavity of lower former 502 is formed；Add after magnetic embryo material, upper mould
Press mechanism 3, the upper die punch 501 such as mould decline compacting in the downward operation of the mechanism driven of plate 201 effect, drive, pass through upper mould etc.
Press mechanism 3 is connected to mould etc. with pressure principle and the internal hydraulic pressure of integrated package 302 oil transmit pressure everywhere in fluid
The pressure of multiple upper die punch 501 of press mechanism 3 keeps equal；Lower each garden of former；During compacting, bottom punch first 503 is motionless, upper mould
Drift 501 is pushed, and each punch pressure is impartial；While upper and lower stamping head carries out pressurize, lower template 205 interlocks magnetizing coil
204th, lower former 502, plug 505 continue uplink synchronization, and the lower die cavity internal taper platform wall of former 502 produces horizontal to ring magnet embryo material
Section is extruded to the garden heart；After the completion of, lower template 205 interlocks magnetizing coil 204, lower former 502, plug 505 and continues DL synchronization,
Cope plate 201 drives press mechanism 3, the upper die punch 501 such as upper mould up, and mould reset, compressing magnet embryo material is demolded；
Also possess and meet coil magnetic field center to being pressed the sufficient scanning of magnetizing of magnet embryo material progress, reach that realization is floated and suppress
Method.
In summary be only presently preferred embodiments of the present invention, not for limit the present invention practical range.It is i.e. all
The equivalent changes and modifications made according to the content of scope of the present invention patent, all should be the technology category of the present invention.
Claims (10)
1. an a kind of mould has more the isobaric floating compacting tool set of ring magnet embryo material, it is characterised in that：It includes：
Upper mould is made up of press mechanism, upper die punch such as cope plate, upper moulds；The press mechanisms such as upper mould, it can transmit pressure with hydraulic oil
Pressure principle everywhere in strong and fluid, balances the pressure differential of each pressure head, makes the multiple punch pressures holdings of mould equal；On this
The press mechanisms such as mould are connected to below the cope plate that can be slided up and down, and each pressure head of the press mechanism such as upper mould connects with upper die punch respectively
Connect；The upper die punch section is circular ring type；
The lower section of the press mechanisms such as upper mould and upper die punch has lower die structure；Its lower die structure includes lower former, lower template, lower mould
Drift, low punch installing plate, base template, plug, plug installing plate and base deck, base guide pillar；The lower former have pair
Should be in the through hole of upper die punch quantity and position, lower former is fixedly installed in lower template, and lower template, which also has, corresponds to upper mould
Drift quantity and the through hole of position, lower former are installed to after lower template, the overlapping insertion of through hole of lower former and lower template, in through hole
Chamber inserts slidable circular ring type bottom punch head；The circular ring type bottom punch head central through hole, bottom punch head correspondence upper die punch
Quantity and position are fixed on low punch installing plate, and low punch installing plate is connected on base template, low punch installing plate and bottom
Seat template also has the through hole corresponding to upper die punch quantity and upper die punch lead to the hole site, bottom punch head, low punch after installation
The overlapping insertion of through hole of installing plate, base template, slidable plug is inserted in through hole inner chamber；Plug correspondence upper die punch number
Amount and position are fixed on plug installing plate, and plug installing plate is connected on base deck；4 are fixedly connected with above the base deck
Individual vertical feet guide pillar, base template is provided with 4 guide pillar positioning shaft sleeve holes, and 4 base guide pillars are upward through base template positioning
After axle sleeve hole, upper end is fixedly connected on lower template, makes base deck, plug installing plate, plug, base guide pillar, lower template disjunctor,
4 guide pillars can synchronously be slided up and down in base template positioning shaft sleeve hole, the corresponding plug of quantity and position can base template,
Slided up and down in circular ring type bottom punch head and the endoporus of upper die punch；
One is fixed on the mould bases in gantry base, and the mould bases is dominated post, base template and constituted by frame top plate, 4 vertical formworks,
The upper end that 4 vertical formworks dominate post is fixedly connected with frame top plate, and lower end is fixedly connected on base template；4 templates are dominated
The be parallel to each other cope plate that can be slided up and down, magnetic conductive board, lower template, the drive at cope plate connection frame top plate center are installed on post
Motivation structure；Magnetizing coil and magnetic conductive board are fixedly installed in the lower template, lower former is located at magnetizing coil inner chamber and is connected to lower mould
On plate；Drive mechanism below base deck connection frame.
2. a mould according to claim 1 has more the isobaric floating compacting tool set of ring magnet embryo material, it is characterised in that：Under this
Former, which has, is provided with a garden taper platform wall in the garden through hole corresponding to pressure head quantity and position, garden through hole, lower former is in coil
It is interior to be arranged in lower template；The lower end of the bottom punch head is fixed on base template by low punch installing plate；The base deck
Upper end connects quantity by plug installing plate and position corresponds to the plug of through hole.
3. a mould according to claim 1 has more the isobaric floating compacting tool set of ring magnet embryo material, it is characterised in that：On this
The press mechanisms such as mould include screwed plug, integrated package, pressure head, check valve and pressing plate；Wherein：Described integrated package upper lateral has been provided
Connect check valve, another end opening connection screw thread at trapped fuel chamber, trapped fuel chamber one end open to block up, described integrated package bottom is longitudinally set
Some working chambers are put, pressure head is loaded in working chamber, pressure head can be vertically moved in working chamber；Described each working chamber passes through it
The oil guiding hole on top is connected with trapped fuel chamber trapped fuel chamber；Described integrated package bottom is connected with and can place restrictions on pressure head and continue what is moved down
Accomplish equalization in pressing plate, the section of each working chamber and pressure head.
4. a mould according to claim 3 has more the isobaric floating compacting tool set of ring magnet embryo material, it is characterised in that：The collection
Circular work chamber is uniformly outputed into biserial upward in blocking bottom.
5. a mould according to claim 3 has more the isobaric floating compacting tool set of ring magnet embryo material, it is characterised in that：The pressure
Head top and the bottom, which have, loads guide collar in groove embedding sealing circle, intermediate channel；Pressure head top and the bottom are because there is sealing ring so that liquid
Force feed will not be leaked from working chamber；Moved vertically above and below the guide collar loaded in pressure head intermediate channel, control pressure head holding.
6. a mould according to claim 3 has more the isobaric floating compacting tool set of ring magnet embryo material, it is characterised in that：The pressure
Plate is fixed to integrated package bottom by screw.
7. a mould according to claim 1 has more the isobaric floating compacting tool set of ring magnet embryo material, it is characterised in that：Lower the moon
Each hole inner chamber insertion of mould, hole internal upper part point can insert upper die punch and slide up and down, and lower part can be inserted on bottom punch head and glide
It is dynamic, the taper platform wall of garden platform shape is provided with the middle of each hole inner chamber.
8. an a kind of mould has more the isobaric floating drawing method of ring magnet embryo material, it is characterised in that：It using such as claim 1 or
Mould described in 2 or 3 or 4 or 5 or 6 or 7 is implemented, and comprises the concrete steps that：
After charging, downwards, the multiple upper die punch connected by press mechanisms such as upper moulds are with pressure phase everywhere in fluid for cope plate
Pressure is transmitted etc. principle and by hydraulic oil, the pressure of multiple upper die punch is kept equal；During compacting, bottom punch head is motionless,
Upper die punch is pushed, and each punch pressure is impartial；Upper and lower stamping head carry out pressurize while, lower template interlock magnetizing coil, under
Former, plug uplink synchronization, the taper platform wall of lower each inner chamber of former is transversal to the generation of ring magnet embryo material to be extruded towards the garden heart, full
Sufficient coil magnetic field center carries out scanning of sufficiently magnetizing to being pressed magnet embryo material, reaches and realizes floating drawing method.
9. a mould according to claim 8 has more the isobaric floating drawing method of ring magnet embryo material, it is characterised in that：Charging
Before, base deck mechanism effect driven is run up, and drives lower former, plug highly to stop needed for rising to magnet embryo material product
Only, the toroidal cavity of depth needed for each die cavity of lower former is formed.
10. a mould according to claim 8 has more the isobaric floating drawing method of ring magnet embryo material, it is characterised in that：It is floating
After the completion of dynamic pressure system, lower template interlocks magnetizing coil, lower former, plug and continues DL synchronization, and cope plate drives the press such as upper mould
Structure, upper die punch are up, and mould resets, and compressing magnet embryo material is demolded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510395010.4A CN104923779B (en) | 2015-07-07 | 2015-07-07 | One mould has more the isobaric floating compacting tool set of ring magnet embryo material and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510395010.4A CN104923779B (en) | 2015-07-07 | 2015-07-07 | One mould has more the isobaric floating compacting tool set of ring magnet embryo material and method |
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| CN104923779A CN104923779A (en) | 2015-09-23 |
| CN104923779B true CN104923779B (en) | 2017-09-08 |
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| CN202356620U (en) * | 2011-12-06 | 2012-08-01 | 广东江粉磁材股份有限公司 | Difunctional mould base of automatic hydraulic press for forming magnetic dry powder |
| CN102602025B (en) * | 2012-03-16 | 2015-12-16 | 上海平野磁气有限公司 | A kind of isobaric drawing method of powder shaping press and device |
| CN104174843A (en) * | 2014-08-11 | 2014-12-03 | 北京京磁强磁材料有限公司 | Oriented compression moulding method for sintered NdFeB |
| CN204842971U (en) * | 2015-07-07 | 2015-12-09 | 上海平野磁气有限公司 | Isobaric compacting tool set that floats of many loop type magnet blanks of a mould |
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