CN104923779A - One-die-multiple-output ring-type magnet blank isobaric floating pressing die and method - Google Patents
One-die-multiple-output ring-type magnet blank isobaric floating pressing die and method Download PDFInfo
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- CN104923779A CN104923779A CN201510395010.4A CN201510395010A CN104923779A CN 104923779 A CN104923779 A CN 104923779A CN 201510395010 A CN201510395010 A CN 201510395010A CN 104923779 A CN104923779 A CN 104923779A
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Abstract
The invention discloses a one-die-multiple-output ring-type magnet blank isobaric floating pressing die and method. After feeding, an upper die plate moves downward, and through a plurality of upper die punches connected to an upper die isobaric mechanism, by the application of the principle that the pressure intensities in fluid are equal everywhere, through hydraulic oil transmission pressure intensity, the pressures of the upper die punches maintain equal; a taper stage wall is arranged in each circular inner cavity of a lower female die; during pressing, lower die punches do not move, the upper die punches press downward, and the pressures of the punches are equal; while pressure maintaining is performed on the upper die punches and the lower die punches, a lower die plate is in linkage with a magnetizing coil, the lower female die and core rods to ascend synchronously, the lower female die extrudes ring-type magnet blanks in the direction from the cross section to the circle center, the pressing magnet blanks are fully magnetized and scanned by a coil magnetic field center, and the floating pressing is achieved. By means of the one-die-multiple-output ring-type magnet blank isobaric floating pressing die and method, the problem that the pressing forces of a plurality of sub-die cavities in a one-die-multiple-output mode are unbalanced is solved, and it is guaranteed that the die pressing ring-type blanks complete the whole floating pressing process of magnetizing-pressing-demagnetizing in the coil magnetic field; a pressing formed workpiece is uniform in inside magnetic polarity distribution and consistent in mass density, and therefore the efficiency of magnetic powder forming pressing is improved.
Description
Technical field
The present invention relates to powder pressing under magnetic field press, particularly an a kind of mould has more the floating compacting tool set of ring magnet stock equipressure and method.
Background technology
In recent years, all kinds of rare earth peng rubidium iron powder pressing, sintering in the specific field, slicing, grinding to produce crystalline rare earth alloy ring to the magnet, is widely used for the motor in the field of motor industry, electroacoustic speakers and other electrical devices, etc.Current magnetic material industry prepares loop type material application and mainly contains: a mould one goes out and undertaken, to compressing after powder magnetic radiate orientation, preparing part magnetic energy quality to improve by magnetic field, and maximum weak point is that production efficiency is not high; For improving compacting production efficiency, generally the method that a mould has more is carried out in compacting as far as possible to small-sized workpiece, namely arrange the Workpiece shaping cavity of more than two in a compacting tool set, once suppress n (die cavity number) individual workpiece, efficiency improves n doubly.And the problem brought to be each even density of being difficult to make once suppress in n (die cavity number) workpiece consistent, produce each ring-like stock workpiece density and have difference; Same ring-like stock inside workpiece density also can be variant; In follow-up sintering process, the ring-like stock due to multiple different densities enters in the sintering process of same temperature and time, and can produce ring-like stock magnetic energy quality unstable, magnetic property and uniformity go to pot; And same ring-like stock because of internal density variant, then ring magnet stock can be caused in sintering process to ftracture because shrinkage factor is different; These all make the magnetic property of radiation ring and yield rate reduce, and cost of manufacture increases.Even more serious can have a strong impact on the overall magnetic property of ring magnet due to Density inhomogeneity.
Summary of the invention
An a kind of mould is the object of the present invention is to provide to have more the floating compacting tool set of ring magnet stock equipressure and method, mainly solve a mould have more in the unbalanced difficult problem of multiple submodule chamber press power, with guarantee mould be compressed in coil magnetic field complete magnetize (magnetic)-compacting-demagnetization (ring-like stock) whole process floating compacting; Reach be pressed the arrangement of shaping inside workpiece magnetic polarity evenly, mass density is consistent, thus the shaping compacting efficiency of magnetic is improved be achieved.
For achieving the above object, technical scheme of the present invention is:
An a kind of mould has more the floating compacting tool set of ring magnet stock equipressure, it is characterized in that: it comprises:
Patrix is become by the press mechanism such as cope match-plate pattern, patrix, upper punch head group; The press mechanisms such as patrix, it can use hydraulic oil to transmit in pressure and fluid pressure principle everywhere, balances the pressure differential of each pressure head, makes the multiple punch pressure of patrix keep equal; The press mechanisms such as this patrix are connected to below the cope match-plate pattern that can slide up and down, and each pressure head of the press mechanisms such as patrix is connected with patrix drift respectively; This patrix drift cross section is circular ring type;
The below of the press mechanisms such as patrix and patrix drift has lower die structure; Its lower die structure comprises lower former, lower bolster, counterdie drift, low punch installing plate, base template, plug, plug installing plate and base deck, base guide pillar; This lower former has the through hole corresponding to patrix drift quantity and position, lower former is fixedly installed on lower bolster, lower bolster also has the through hole corresponding to patrix drift quantity and position, after lower former is installed to lower bolster, the through hole overlap of lower former and lower bolster is through, and through hole inner chamber all inserts slidably circular ring type counterdie drift; This circular ring type counterdie drift central through hole, the corresponding patrix drift quantity of counterdie drift and position are fixed on low punch installing plate, low punch installing plate is connected on base template, low punch installing plate and base template also have the through hole corresponding to patrix drift quantity and patrix drift lead to the hole site, after installing, the through hole overlap of counterdie drift, low punch installing plate, base template is through, and through hole inner chamber all inserts slidably plug; The corresponding patrix drift quantity of this plug and position are fixed on plug installing plate, and plug installing plate is connected on base deck; 4 vertical feet guide pillars are fixedly connected with above this base deck, base template has 4 guide pillar locating shaft trepannings, after 4 base guide pillars are upward through base template locating shaft trepanning, upper end is fixedly connected on lower bolster, make base deck, plug installing plate, plug, base guide pillar, lower bolster disjunctor, 4 guide pillars can slide up and down in the inter-sync of base template locating shaft trepanning, and plug corresponding to quantity and position can slide up and down in the endoporus of base template, circular ring type counterdie drift and patrix drift;
One is fixed on the mould bases in gantry base, and this mould bases dominates post by frame top board, 4 vertical formworks, base template forms, and the upper end that 4 vertical formworks dominate post is fixedly connected with frame top board, and lower end is fixedly connected on base template; 4 templates dominate the cope match-plate pattern, magnetic conductive board, the lower bolster that post are provided with and are parallel to each other and can slide up and down, the driving mechanism at cope match-plate pattern connection frame top board center; This lower bolster is fixedly installed magnetizing coil and magnetic conductive board, lower former is positioned at magnetizing coil inner chamber and is connected on lower bolster; Driving mechanism below base deck connection frame.
A described mould has more the floating compacting tool set of ring magnet stock equipressure, and it is characterized in that: this lower former has the garden through hole corresponding to pressure head quantity and position, be provided with a garden tapering platform wall in the through hole of garden, lower former is in coil and is arranged on lower bolster; The lower end of this counterdie drift is fixed on base template by low punch installing plate; This base deck upper end corresponds to the plug of through hole by plug installing plate number of connection and position.
A described mould has more the floating compacting tool set of ring magnet stock equipressure, it is characterized in that: the press mechanisms such as this patrix comprise screwed plug, integrated package, pressure head, check valve and pressing plate; Wherein: described integrated package upper lateral has provided trapped fuel chamber, one end open place, trapped fuel chamber connects check valve, other end opening connecting thread blocks up, described integrated package bottom longitudinally arranges some working chambers, and in working chamber, load pressure head, pressure head can vertically move in working chamber; Described each working chamber is communicated with trapped fuel chamber, trapped fuel chamber by the oil guiding hole on its top; Be connected with the pressing plate can placed restrictions on pressure head and continue to move down bottom described integrated package, equalization is accomplished in the cross section of each working chamber and pressure head.
A described mould has more ring magnet stock equipressure and to float compacting tool set, it is characterized in that: this integrated package bottom becomes that biserial is uniform outputs circular work chamber upward.
A described mould has more the floating compacting tool set of ring magnet stock equipressure, it is characterized in that: there is groove embedding sealing circle these pressure head top and the bottom, loads guide collar in intermediate channel.Pressure head top and the bottom, because there being the effect of sealing ring, make hydraulic oil can not leak from working chamber; The guide collar loaded in pressure head intermediate channel, controls pressure head and keeps moving both vertically up and down.
A described mould has more the floating compacting tool set of ring magnet stock equipressure, it is characterized in that: this pressing plate is fixed to bottom integrated package by screw.
A described mould has more the floating compacting tool set of ring magnet stock equipressure, it is characterized in that: each hole inner chamber of lower former is through, hole internal upper part divides and can insert patrix drift and slide up and down, and lower part can be inserted counterdie drift and slide up and down, and is provided with the tapering platform wall of garden platform shape in the middle of the inner chamber of each hole.
An a kind of mould has more the floating drawing method of ring magnet stock equipressure, it is characterized in that: it adopts mould as above to implement, and concrete steps are:
After reinforced, cope match-plate pattern is downward, and the multiple patrix drifts connected by press mechanisms such as patrixes to use in fluids pressure principle and transmit pressure by hydraulic oil everywhere, make the pressure of multiple patrix drift keep equal; During compacting, counterdie drift is motionless, and patrix drift presses down, and each punch pressure is impartial; While upper and lower stamping head carries out pressurize, lower bolster interlock magnetizing coil, lower former, plug uplink synchronization, the tapering platform wall of each inner chamber of lower former produces cross section to ring magnet stock and extrudes to the garden heart, meeting coil magnetic field center to magnetize fully scanning to being pressed magnet stock, reaching and realizing the drawing method that floats.
A described mould has more the floating drawing method of ring magnet stock equipressure, it is characterized in that: before reinforced, base deck upwards runs by driving mechanism effect, and under driving, former, plug rise to magnet stock product desired height and stop, and each die cavity of lower former forms the toroidal cavity of desired depth.
A described mould has more the floating drawing method of ring magnet stock equipressure, it is characterized in that: after floating compacting completes, lower bolster interlock magnetizing coil, lower former, plug continue DL synchronization, cope match-plate pattern drives the press mechanisms such as patrix, patrix drift up, mould resets, and compressing magnet stock is by the demoulding.
The present invention compared with the conventional method, mould of the present invention and method are a kind of floating compacting tool set of ring magnet stock equipressure and method of powder shaping press, apply in powder shaping press, thoroughly solve a mould to have more ring-like stock Workpiece shaping in compacting and be difficult to reach the problem of consistent in density and guarantee that downtrodden ring-like stock workpiece is in the floating drawing method of magnetic field center optimum position all the time
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In Fig. 1: 1-frame, 101-gantry base, 201-cope match-plate pattern, 202-template dominates post, 203-magnetic conductive board, 204-magnetizing coil, 205-lower bolster, 206-base template, 207-base guide pillar, 208-base deck, the press mechanisms such as 3-patrix, 501-patrix drift, former under 502-, 503-counterdie drift, 504-low punch installing plate, 505-plug, 506-plug installing plate.
Fig. 2 is upper die and lower die structural representation in the present invention.
Fig. 3 is the partial sectional view of counterdie of the present invention.
Fig. 4 is the lateral plan of Fig. 2.
In Fig. 2,3,4: the press mechanisms such as 3-patrix, 501-patrix drift, former under 502-, 502A-garden tapering platform wall, 503-counterdie drift, 504-low punch installing plate, 505-plug, 506-plug installing plate, 600-magnet stock.
Fig. 5 is the structural representation of the press mechanism such as patrix in the present invention.
In Fig. 5: 301-screwed plug, 302-integrated package, 303-pressure head, 304-oil guiding hole, 305-sealing ring, 306-guide collar, 307-check valve, 308-trapped fuel chamber, 309-working chamber, 310-pressing plate, 311-screw.
Detailed description of the invention
Refer to Fig. 1-5, one one mould that the invention discloses powder pressing under magnetic field press has more the floating compacting tool set of ring magnet stock equipressure.It comprises:
The press mechanisms 3 such as one patrix, it can use hydraulic oil to transmit in pressure and fluid pressure principle everywhere, balances the pressure differential of each pressure head, makes the multiple punch pressure of patrix keep equal.The press mechanisms 3 such as this patrix comprise screwed plug 301, integrated package 302, pressure head 303, check valve 307 and pressing plate 310; Wherein: described integrated package 302 upper lateral has provided trapped fuel chamber 308, one end open place, trapped fuel chamber 308 connects check valve 307, the other end (on center deviation position) opening connecting thread stifled 301, described integrated package 302 bottom longitudinally arranges some working chambers 309 (as 8), in working chamber 309, load (8) pressure head 303, pressure head 303 can vertically move in working chamber 309; Described each working chamber 309 is communicated with trapped fuel chamber, trapped fuel chamber 308 by the oil guiding hole 304 on its top; Be connected with the pressing plate 310 can placed restrictions on pressure head 303 and continue to move down bottom described integrated package 302, equalization is accomplished in the cross section of each working chamber 309 and pressure head 303.Described each pressure head 303 is connected with patrix drift 501 respectively.
When the press mechanisms such as patrix of the present invention 3 use, open check valve 307 and pour into hydraulic oil to trapped fuel chamber 308, hydraulic oil in trapped fuel chamber 308 applies pressure by the oil guiding hole 304 on working chamber 309 to each pressure head 303, forces it to move downward, until be subject to the stop of pressing plate 310; Due to the effect of hydraulic pressure transfer, and the cross section of each working chamber 309 and pressure head 303 is impartial, the pressure of pressure head 303 is balanced to equal.So the pressure of pressed powder is impartial all the time in each die cavity, the stock density of powder compacting in each die cavity also just can be made to reach consistent.Then closing one-way valve 307, unscrews and stifled 301 discharges air tightening again after pressure release.Pressure head 303 is connected with patrix drift 501, and when powder press works, pressure head 303 is subject to the passback elastic force that formpiston is suppressed powder, and pressure head starts to shrink in working chamber 309.Can not accomplish the same owing to adding powder amount in the film chamber of mould, the elastic force be subject to during the compacting of each pressure head also can be inconsistent, but after the elastic force of pressure head is sent to trapped fuel chamber 308, due to the effect of hydraulic pressure transfer, and the cross section of each working chamber 309 and pressure head 303 is impartial, makes the pressure of pressure head 303 be balanced to equal.
As the preferred embodiment of the press mechanisms such as patrix 3, described integrated package 302 bottom becomes that biserial is uniform outputs circular work chamber 209 upward, is conducive to like this forming more operating point.
As the preferred embodiment of the press mechanisms such as patrix 3, there is groove embedding sealing circle 305 described pressure head 303 top and the bottom, load guide collar 306 in intermediate channel.Pressure head 303 top and the bottom, because there being the effect of sealing ring 305, make hydraulic oil can not leak from working chamber; The guide collar 306 loaded in pressure head intermediate channel, controls pressure head and keeps moving both vertically up and down.
As the preferred embodiment of the press mechanisms such as patrix 3, described pressing plate 310 is fixed to bottom integrated package 302 by screw 311.
As another part of mould, the below of the press mechanisms 3 such as this patrix and patrix drift 501 (cross section is circular ring type) has lower die structure.As shown in Figure 1, 2, 3: this lower die structure comprises plug 505, the plug installing plate 506 of lower former 502, counterdie drift 503, low punch installing plate 504, corresponding pressure head 303 quantity (8) and position.Lower former 502 has the through hole corresponding to pressure head 303 quantity (8) and position, this lower former 502 is installed on lower bolster 205, this lower bolster 205 also has the through hole corresponding to pressure head 303 quantity (8) and position, after lower former 502 is installed to lower bolster 205, (8) through hole overlap of lower former 502 and lower bolster 205 is through, slidably circular ring type counterdie drift 503 (totally 8) is all inserted in through hole, the lower end of this counterdie drift 503 is fixed on base template 206 by low punch installing plate 504, this base template 206 is fixedly installed on above gantry base 101 by base guide pillar 207, the base deck 208 passed by base guide pillar 207 is also provided with between this gantry base 101 and base template 206, this base deck 208 upper end corresponds to the plug 505 of through hole (8) by plug installing plate 506 number of connection (8) and position, this plug 505 is undertaken up and down by the drive of base deck 208, and can slide in the endoporus of circular ring type counterdie drift 503 and circular ring type patrix drift 501.
As a kind of preferred structure, this lower former has the garden through hole corresponding to pressure head quantity and position, and be provided with a garden tapering platform wall in the through hole of garden, lower former is in coil and is arranged on lower bolster; The lower end of this counterdie drift is fixed on base template by low punch installing plate; This base deck upper end corresponds to the plug of through hole by plug installing plate number of connection and position.
Mould of the present invention comprises one and is fixed on frame 1 in gantry base 101, (4) template is set around this frame 1 top board and dominates post 202, this template dominates the cope match-plate pattern 201, magnetic conductive board 203, the lower bolster 205 that post 202 are provided with and are parallel to each other and can slide up and down, the dynamicliquid pressure oil cylinder at cope match-plate pattern 201 connection frame 1 top board center; 4 locating shaft trepannings of base template 206 gone here and there by 4 base guide pillars 207, base guide pillar 207, base template 206 upper end connect lower bolster 205, lower end connects base deck 208, lower bolster 205, base template 206 and base deck 208 are parallel to each other, 4 base guide pillars 207 can synchronously slide up and down in base template 206 positioning shaft sleeve, and base deck 208 connects dynamicliquid pressure oil cylinder below.This lower bolster 205 is fixedly installed magnetizing coil 204, and this lower former 502 is positioned at magnetizing coil 204 inner chamber.
Use mould of the present invention to carry out a mould and have more the floating drawing method of ring magnet stock equipressure, comprise the steps:
Base deck 208 upwards runs by driving mechanism effect, and under driving, former 502, plug 505 rise to magnet stock product desired height and stop, and each die cavity of lower former 502 forms the toroidal cavity of desired depth; After adding magnetic stock, cope match-plate pattern 201 runs downwards by driving mechanism effect, drive the press mechanisms 3 such as patrix, patrix drift 501 to decline to suppress, to use in fluid pressure principle and integrated package 302 internal hydraulic pressure oil everywhere to transmit pressure by the press mechanisms such as patrix 3, make the pressure of the multiple patrix drifts 501 being connected to the press mechanisms such as patrix 3 keep equal; The lower each garden of former; During compacting, counterdie drift 503 is motionless, and patrix drift 501 presses down, and each punch pressure is impartial; While upper and lower stamping head carries out pressurize, lower bolster 205 interlock magnetizing coil 204, lower former 502, plug 505 continue uplink synchronization, and lower former 502 die cavity internal taper platform wall produces cross section to ring magnet stock and extrudes to the garden heart; After completing, lower bolster 205 interlock magnetizing coil 204, lower former 502, plug 505 continue DL synchronization, and cope match-plate pattern 201 drives the press mechanisms such as patrix 3, patrix drift 501 up, and mould resets, and compressing magnet stock is by the demoulding; Also possessed and met coil magnetic field center and to magnetize fully scanning to being pressed magnet stock, reached and realize the drawing method that floats.
Be only preferred embodiment of the present invention in sum, be not used for limiting practical range of the present invention.Namely all equivalences done according to the content of the present patent application the scope of the claims change and modify, and all should be technology category of the present invention.
Claims (10)
1. a mould has more the floating compacting tool set of ring magnet stock equipressure, it is characterized in that: it comprises:
Patrix is become by the press mechanism such as cope match-plate pattern, patrix, upper punch head group; The press mechanisms such as patrix, it can use hydraulic oil to transmit in pressure and fluid pressure principle everywhere, balances the pressure differential of each pressure head, makes the multiple punch pressure of patrix keep equal; The press mechanisms such as this patrix are connected to below the cope match-plate pattern that can slide up and down, and each pressure head of the press mechanisms such as patrix is connected with patrix drift respectively; This patrix drift cross section is circular ring type;
The below of the press mechanisms such as patrix and patrix drift has lower die structure; Its lower die structure comprises lower former, lower bolster, counterdie drift, low punch installing plate, base template, plug, plug installing plate and base deck, base guide pillar; This lower former has the through hole corresponding to patrix drift quantity and position, lower former is fixedly installed on lower bolster, lower bolster also has the through hole corresponding to patrix drift quantity and position, after lower former is installed to lower bolster, the through hole overlap of lower former and lower bolster is through, and through hole inner chamber all inserts slidably circular ring type counterdie drift; This circular ring type counterdie drift central through hole, the corresponding patrix drift quantity of counterdie drift and position are fixed on low punch installing plate, low punch installing plate is connected on base template, low punch installing plate and base template also have the through hole corresponding to patrix drift quantity and patrix drift lead to the hole site, after installing, the through hole overlap of counterdie drift, low punch installing plate, base template is through, and through hole inner chamber all inserts slidably plug; The corresponding patrix drift quantity of this plug and position are fixed on plug installing plate, and plug installing plate is connected on base deck; 4 vertical feet guide pillars are fixedly connected with above this base deck, base template has 4 guide pillar locating shaft trepannings, after 4 base guide pillars are upward through base template locating shaft trepanning, upper end is fixedly connected on lower bolster, make base deck, plug installing plate, plug, base guide pillar, lower bolster disjunctor, 4 guide pillars can slide up and down in the inter-sync of base template locating shaft trepanning, and plug corresponding to quantity and position can slide up and down in the endoporus of base template, circular ring type counterdie drift and patrix drift;
One is fixed on the mould bases in gantry base, and this mould bases dominates post by frame top board, 4 vertical formworks, base template forms, and the upper end that 4 vertical formworks dominate post is fixedly connected with frame top board, and lower end is fixedly connected on base template; 4 templates dominate the cope match-plate pattern, magnetic conductive board, the lower bolster that post are provided with and are parallel to each other and can slide up and down, the driving mechanism at cope match-plate pattern connection frame top board center; This lower bolster is fixedly installed magnetizing coil and magnetic conductive board, lower former is positioned at magnetizing coil inner chamber and is connected on lower bolster; Driving mechanism below base deck connection frame.
2. a mould according to claim 1 has more the floating compacting tool set of ring magnet stock equipressure, it is characterized in that: this lower former has the garden through hole corresponding to pressure head quantity and position, be provided with a garden tapering platform wall in the through hole of garden, lower former is in coil and is arranged on lower bolster; The lower end of this counterdie drift is fixed on base template by low punch installing plate; This base deck upper end corresponds to the plug of through hole by plug installing plate number of connection and position.
3. a mould according to claim 1 has more the floating compacting tool set of ring magnet stock equipressure, it is characterized in that: the press mechanisms such as this patrix comprise screwed plug, integrated package, pressure head, check valve and pressing plate; Wherein: described integrated package upper lateral has provided trapped fuel chamber, one end open place, trapped fuel chamber connects check valve, other end opening connecting thread blocks up, described integrated package bottom longitudinally arranges some working chambers, and in working chamber, load pressure head, pressure head can vertically move in working chamber; Described each working chamber is communicated with trapped fuel chamber, trapped fuel chamber by the oil guiding hole on its top; Be connected with the pressing plate can placed restrictions on pressure head and continue to move down bottom described integrated package, equalization is accomplished in the cross section of each working chamber and pressure head.
4. a mould according to claim 3 has more ring magnet stock equipressure and to float compacting tool set, it is characterized in that: this integrated package bottom becomes that biserial is uniform outputs circular work chamber upward.
5. a mould according to claim 3 has more the floating compacting tool set of ring magnet stock equipressure, it is characterized in that: there is groove embedding sealing circle these pressure head top and the bottom, loads guide collar in intermediate channel.Pressure head top and the bottom, because there being the effect of sealing ring, make hydraulic oil can not leak from working chamber; The guide collar loaded in pressure head intermediate channel, controls pressure head and keeps moving both vertically up and down.
6. a mould according to claim 3 has more the floating compacting tool set of ring magnet stock equipressure, it is characterized in that: this pressing plate is fixed to bottom integrated package by screw.
7. a mould according to claim 1 has more the floating compacting tool set of ring magnet stock equipressure, it is characterized in that: each hole inner chamber of lower former is through, hole internal upper part divides and can insert patrix drift and slide up and down, lower part can be inserted counterdie drift and slide up and down, and is provided with the tapering platform wall of garden platform shape in the middle of the inner chamber of each hole.
8. a mould has more the floating drawing method of ring magnet stock equipressure, it is characterized in that: it adopts the mould as described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 to implement, and concrete steps are:
After reinforced, cope match-plate pattern is downward, and the multiple patrix drifts connected by press mechanisms such as patrixes to use in fluids pressure principle and transmit pressure by hydraulic oil everywhere, make the pressure of multiple patrix drift keep equal; During compacting, counterdie drift is motionless, and patrix drift presses down, and each punch pressure is impartial; While upper and lower stamping head carries out pressurize, lower bolster interlock magnetizing coil, lower former, plug uplink synchronization, the tapering platform wall of each inner chamber of lower former produces cross section to ring magnet stock and extrudes to the garden heart, meeting coil magnetic field center to magnetize fully scanning to being pressed magnet stock, reaching and realizing the drawing method that floats.
9. a mould according to claim 8 has more the floating drawing method of ring magnet stock equipressure, it is characterized in that: before reinforced, base deck upwards runs by driving mechanism effect, under driving, former, plug rise to magnet stock product desired height and stop, and each die cavity of lower former forms the toroidal cavity of desired depth.
10. a mould according to claim 8 has more the floating drawing method of ring magnet stock equipressure, it is characterized in that: after floating compacting completes, lower bolster interlock magnetizing coil, lower former, plug continue DL synchronization, cope match-plate pattern drives the press mechanisms such as patrix, patrix drift up, mould resets, and compressing magnet stock is by the demoulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| 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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| 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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