CN203817388U - Profiling die for neodymium-iron-boron large circular ring - Google Patents
Profiling die for neodymium-iron-boron large circular ring Download PDFInfo
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- CN203817388U CN203817388U CN201420214802.8U CN201420214802U CN203817388U CN 203817388 U CN203817388 U CN 203817388U CN 201420214802 U CN201420214802 U CN 201420214802U CN 203817388 U CN203817388 U CN 203817388U
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- baffle plate
- drift
- pushing block
- punch
- neodymium
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Abstract
Provided is a profiling die for a neodymium-iron-boron large circular ring. The profiling die comprises a die bottom plate, a die core, a gland, a horizontal chute and a vertical chute. A left punch and a right punch are slidably arranged in the horizontal chute. A front punch and a rear punch are slidably arranged in the vertical chute. Arc molding surfaces are arranged on the left punch, the right punch, the front punch and the rear punch. The left punch, the right punch, the front punch and the rear punch are driven by a driving mechanism to simultaneously close to or far from the die core. When the left punch, the right punch, the front punch and the rear punch are close to the die core, a circular molding surface is enclosed by the arc molding surfaces of the left punch, the right punch, the front punch and the rear punch. A circular-ring-shaped molding cavity is enclosed by the circular molding surface and the outer wall of the die core. The gland is arranged above the circular-ring-shaped molding cavity. The profiling die for the neodymium-iron-boron large circular ring has following beneficial effects: by compacting neodymium-iron-boron powder in four directions via four punches, the profiling die is uniform in stress, small in deformation, fine in internal-external diameter coaxiality and product quality and high in dimensional precision and qualified rate and is less susceptible to cracking.
Description
Technical field
The utility model relates to a kind of neodymium-iron-boron large circle casted die mould.
Background technology
In prior art, neodymium-iron-boron large circle casted die mould comprises left punch die, right punch die, back side panel, front side board, base plate, upper plate and newel, left punch die during moulding, right punch die, base plate, upper plate and newel sealing are annulus forming cavity, Nd-Fe-B powder is in annulus forming cavity, the pressure that the left oil cylinder of casted die mould and right oil cylinder produce is passed to respectively on left punch die and right punch die, thereby make left punch die and right punch die mutually draw close the compacting realizing the Nd-Fe-B powder in annulus forming cavity, after compacting, on upper plate, move, then extract newel, take back side panel and front side board apart, remove left punch die and right punch die, thereby obtained neodymium-iron-boron large circle blank.This casted die mould is complicated operation not only, and because the outer wall of neodymium-iron-boron large circle blank is filled the span of a man's arms and formed by left punch die and right punch die, in pressing process, easily there is the situation of unbalance stress, thereby cause the profile of neodymium-iron-boron large circle blank to occur slight deformation, and then affect the internal-and external diameter axiality of neodymium-iron-boron large circle blank, reduced the dimensional accuracy of product, and neodymium-iron-boron large circle blank easily ftractures in sintering process, cause poor product quality, qualification rate low.
Summary of the invention
In order to overcome, in prior art, there is above-mentioned deficiency, the utility model provides a kind of simple in structure, easy to operate neodymium-iron-boron large circle casted die mould, the neodymium-iron-boron large circle blank deflection that this casted die mould suppresses is little, internal-and external diameter axiality is good, dimensional accuracy is high, and not easy to crack, good product quality, qualification rate is high.
The technical scheme in the invention for solving the technical problem is: a kind of neodymium-iron-boron large circle casted die mould, comprises baffle plate, core rod and gland, described baffle plate is provided with horizontal concrete chute, and with the perpendicular vertical chute of this horizontal concrete chute, the middle part of this vertical chute and the middle part of described horizontal concrete chute coincides and be fixed with described core rod in the center coinciding, is slidably equipped with a left side that lays respectively at described core rod in described horizontal concrete chute, the left drift of right both sides and right drift, in described vertical chute, be slidably equipped with lay respectively at described core rod before, front drift and the back punching head of rear both sides, described left drift, right drift, front drift with in back punching head, all there is the arc forming surface contacting with product to be pressed, described left drift, right drift, front drift and back punching head can be simultaneously under the drive of driving mechanism near or away from described core rod, described left drift, right drift, front drift and back punching head be when the described core rod, described left drift, right drift, arc forming surface in front drift and back punching head surrounds a round-formed profile, the annular forming cavity in outer wall besieged city of this round-formed profile and described core rod, and the top of this annular forming cavity is provided with described gland, and described gland can be gone up in the drive of press mechanism, lower movement also can be covered on described annular forming cavity when moving down.
Further, the forward and backward two ends of described vertical chute be provided with parallel with described horizontal concrete chute before push away groove and pusher groove, the both sides of the front end of described front drift are provided with front drift inclined-plane, the both sides of the rear end of described back punching head are provided with back punching head inclined-plane;
Before described, push away the left front pushing block and the right front pushing block that in groove, are slidably equipped with the arranged on left and right sides that lays respectively at described front drift, described left front pushing block and right front pushing block are provided with the front promotion inclined-plane matching with described front drift inclined-plane, in described pusher groove, be slidably equipped with left back pushing block and the right back pushing block of the both sides that lay respectively at described back punching head, described left back pushing block and right back pushing block are provided with the rear promotion inclined-plane matching with described back punching head inclined-plane;
Described driving mechanism comprises left cylinder and right cylinder, the output of described left cylinder is provided with left push pedal, in this left push pedal, be provided with side by side three left push rods that are connected with described left front pushing block, left drift and left back pushing block respectively, the output of described right cylinder is provided with right push pedal, is provided with side by side three right push rods that are connected with described right front pushing block, right drift and right back pushing block respectively in this right push pedal.
Further, described baffle plate is provided with left front baffle plate, left back baffle plate, right front baffle plate and right back baffle plate, described left front baffle plate, left back baffle plate, right front baffle plate and right back baffle plate are distributed on the outside of described core rod, between described left front baffle plate and left back baffle plate and between right front baffle plate and right back baffle plate, form described horizontal concrete chute, between described left front baffle plate and right front baffle plate, form described vertical chute between left back baffle plate and right back baffle plate, described left front baffle plate, left back baffle plate, right front baffle plate and right back baffle plate are all fixed on described baffle plate by fixed block;
The front side of described left front baffle plate and right front baffle plate is provided with front flashboard, between this front flashboard and described left front baffle plate and right front baffle plate, form before described and push away groove, the rear side of described left back baffle plate and right back baffle plate is provided with rear flashboard, between this rear flashboard and described left back baffle plate and right back baffle plate, form described pusher groove, between described front drift and front flashboard, be provided with return spring between described back punching head and rear flashboard.
Further, described gland is made by permeability magnetic material with baffle plate and is connected with the output of magnetizing equipment, and all the other parts adopt nonmagnetic steel material to make.
Further, described core rod is up-small and down-big circular cone important actor, and the tapering of this circular cone important actor is 1:20 ~ 1:10, is convenient to the demoulding.
Further, described core rod is made by stainless steel material, can prevent that Nd-Fe-B powder is bonded on core rod, is convenient to the demoulding.
Further, described press mechanism comprises lower air cylinder, and the output of this lower air cylinder is connected with described gland.
The utility model in use, at left drift, right drift, when front drift core rod relative to back punching head opened, Nd-Fe-B powder is put into annular forming cavity, thereby then descending air cylinder action that gland is moved down covers on annular forming cavity, then left cylinder and right cylinder move simultaneously, left cylinder makes left front pushing block, left drift and left back pushing block move right simultaneously, right cylinder makes right front pushing block, right drift and right back pushing block are moved to the left simultaneously, thereby left front pushing block move right and right front pushing block be moved to the left in front promotion inclined-plane on left front pushing block and right front pushing block match with front drift inclined-plane on front drift make before drift move backward, thereby left back pushing block move right and right back pushing block be moved to the left in rear promotion inclined-plane on left back pushing block and right back pushing block match back punching head moved forward with back punching head inclined-plane in back punching head, now, return spring is stretched, when left drift, right drift, when the arc forming surface in front drift and back punching head surrounds a round-formed profile, left drift, right drift, front drift and back punching head are suppressed Nd-Fe-B powder in annular forming cavity simultaneously, after compacting, lower air cylinder action makes to move on gland, then left cylinder and right cylinder move simultaneously, left cylinder makes left front pushing block, left drift and left back pushing block are moved to the left simultaneously, right cylinder makes right front pushing block, right drift and right back pushing block move right simultaneously, and left front pushing block be moved to the left move right with right front pushing block in before move forward under the effect of drift at return spring, at left back pushing block, be moved to the left when moving right with right back pushing block and move backward under the effect of back punching head at return spring, now, left drift, right drift, front drift core rod relative to back punching head opened, then neodymium-iron-boron large circle blank is taken off and can carry out the compacting of next neodymium-iron-boron large circle blank from core rod.
The beneficial effects of the utility model are: owing to Nd-Fe-B powder being suppressed and obtained neodymium-iron-boron large circle failed part from four direction by four drifts, not only stressed even, neodymium-iron-boron large circle deflection is little, internal-and external diameter axiality is good, dimensional accuracy is high, and not easy to crack, good product quality, qualification rate is high.Simultaneously because four drifts directly or are indirectly driven by driving mechanism, simple to operate, and overall structure is simply compact.
Accompanying drawing explanation
Fig. 1 is top view of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to Fig. 1, Fig. 2, a kind of neodymium-iron-boron large circle casted die mould, comprises baffle plate 1, core rod 2 and gland 3, described baffle plate is provided with horizontal concrete chute, and with the perpendicular vertical chute of this horizontal concrete chute, the middle part of this vertical chute and the middle part of described horizontal concrete chute coincides and be fixed with described core rod 2 in the center coinciding, is slidably equipped with a left side that lays respectively at described core rod in described horizontal concrete chute, the left drift 4 of right both sides and right drift 5, in described vertical chute, be slidably equipped with lay respectively at described core rod before, the front drift 6 of rear both sides and back punching head 7, described left drift, right drift, front drift with in back punching head, all there is the arc forming surface contacting with product to be pressed, described left drift 4, right drift 5, front drift 6 and back punching head 7 can be simultaneously under the drive of driving mechanism near or away from described core rod 1, described left drift, right drift, front drift and back punching head be when the described core rod, described left drift, right drift, arc forming surface in front drift and back punching head surrounds a round-formed profile 8, the annular forming cavity 9 in outer wall besieged city of this round-formed profile and described core rod, the top of this annular forming cavity is provided with described gland, and described gland can be gone up in the drive of press mechanism, lower movement also can be covered on described annular forming cavity when moving down.
The forward and backward two ends of described vertical chute be provided with parallel with described horizontal concrete chute before push away groove and pusher groove, the both sides of the front end of described front drift 6 are provided with front drift inclined-plane 10, the both sides of the rear end of described back punching head 7 are provided with back punching head inclined-plane 11;
Before described, push away the left front pushing block 12 and the right front pushing block 13 that in groove, are slidably equipped with the arranged on left and right sides that lays respectively at described front drift, described left front pushing block and right front pushing block are provided with the front promotion inclined-plane 14 matching with described front drift inclined-plane, in described pusher groove, be slidably equipped with left back pushing block 15 and the right back pushing block 16 of the both sides that lay respectively at described back punching head, described left back pushing block and right back pushing block are provided with the rear promotion inclined-plane 17 matching with described back punching head inclined-plane;
Described driving mechanism comprises left cylinder 18 and right cylinder 19, the output of described left cylinder is provided with left push pedal 20, in this left push pedal, be provided with side by side three left push rods 21 that are connected with described left front pushing block, left drift and left back pushing block respectively, the output of described right cylinder is provided with right push pedal 22, is provided with side by side three right push rods 23 that are connected with described right front pushing block, right drift and right back pushing block respectively in this right push pedal.
Described baffle plate is provided with left front baffle plate 24, left back baffle plate 25, right front baffle plate 26 and right back baffle plate 27, described left front baffle plate, left back baffle plate, right front baffle plate and right back baffle plate are distributed on the outside of described core rod, between described left front baffle plate and left back baffle plate and between right front baffle plate and right back baffle plate, form described horizontal concrete chute, between described left front baffle plate and right front baffle plate, form described vertical chute between left back baffle plate and right back baffle plate, described left front baffle plate, left back baffle plate, right front baffle plate and right back baffle plate are all fixed on described baffle plate 1 by fixed block 28;
The front side of described left front baffle plate and right front baffle plate is provided with front flashboard 29, between this front flashboard and described left front baffle plate and right front baffle plate, form before described and push away groove, the rear side of described left back baffle plate and right back baffle plate is provided with rear flashboard 30, between this rear flashboard and described left back baffle plate and right back baffle plate, form described pusher groove, between described front drift and front flashboard, be provided with return spring 31 between described back punching head and rear flashboard.
Described gland 3 is made by permeability magnetic material with baffle plate 1 and is connected with the output of magnetizing equipment, and all the other parts adopt nonmagnetic steel material to make.
Described core rod 2 is up-small and down-big circular cone important actor, and the tapering of this circular cone important actor is 1:20 ~ 1:10, is convenient to the demoulding.
Described core rod 1 is made by stainless steel material, can prevent that Nd-Fe-B powder is bonded on core rod, is convenient to the demoulding.
Described press mechanism comprises lower air cylinder, and the output of this lower air cylinder is connected with described gland 3.
The utility model in use, at left drift 4, right drift 5, when front drift 6 core rod 2 relative to back punching head 7 opened, Nd-Fe-B powder is put into annular forming cavity 9, thereby then descending air cylinder action that gland 3 is moved down covers on annular forming cavity 9, then left cylinder 18 and right cylinder 19 move simultaneously, left cylinder 18 makes left front pushing block 12, left drift 4 and left back pushing block 15 move right simultaneously, right cylinder 19 makes right front pushing block 13, right drift 5 and right back pushing block 16 are moved to the left simultaneously, thereby left front pushing block move right and right front pushing block be moved to the left in front promotion inclined-plane 14 on left front pushing block and right front pushing block match with front drift inclined-plane 10 on front drift make before drift 6 move backward, thereby left back pushing block move right and right back pushing block be moved to the left in rear promotion inclined-plane 17 on left back pushing block and right back pushing block match back punching head 7 moved forward with back punching head inclined-plane 11 in back punching head, now, return spring 31 is stretched, when left drift, right drift, when the arc forming surface in front drift and back punching head surrounds a round-formed profile, left drift 4, right drift 5, front drift 6 and back punching head 7 are suppressed Nd-Fe-B powder in annular forming cavity 9 simultaneously, after compacting, lower air cylinder action makes to move on gland 3, then left cylinder 18 and right cylinder 19 move simultaneously, left cylinder 18 makes left front pushing block 12, left drift 4 and left back pushing block 15 are moved to the left simultaneously, right cylinder 19 makes right front pushing block 13, right drift 5 and right back pushing block 16 move right simultaneously, and left front pushing block be moved to the left move right with right front pushing block in before drift 6 under the effect of return spring 31, move forward, left back pushing block be moved to the left move right with right back pushing block in back punching head 7 under the effect of return spring 31, move backward, now, left drift 4, right drift 5, front drift 6 core rod relative to back punching head 7 opened, then neodymium-iron-boron large circle blank is taken off and can carry out the compacting of next neodymium-iron-boron large circle blank from core rod 2.
Owing to Nd-Fe-B powder being suppressed and obtained neodymium-iron-boron large circle failed part from four direction by four drifts, not only stressed evenly neodymium-iron-boron large circle deflection is little, and internal-and external diameter axiality is good, and dimensional accuracy is high, and not easy to crack, good product quality, and qualification rate is high.Simultaneously because four drifts directly or are indirectly driven by driving mechanism, simple to operate, and overall structure is simply compact.
Claims (7)
1. a neodymium-iron-boron large circle casted die mould, comprises baffle plate, core rod and gland, is characterized in that: described baffle plate is provided with horizontal concrete chute, and with the perpendicular vertical chute of this horizontal concrete chute, the middle part of this vertical chute and the middle part of described horizontal concrete chute coincides and be fixed with described core rod in the center coinciding, is slidably equipped with a left side that lays respectively at described core rod in described horizontal concrete chute, the left drift of right both sides and right drift, in described vertical chute, be slidably equipped with lay respectively at described core rod before, front drift and the back punching head of rear both sides, described left drift, right drift, front drift with in back punching head, all there is the arc forming surface contacting with product to be pressed, described left drift, right drift, front drift and back punching head can be simultaneously under the drive of driving mechanism near or away from described core rod, described left drift, right drift, front drift and back punching head be when the described core rod, described left drift, right drift, arc forming surface in front drift and back punching head surrounds a round-formed profile, the annular forming cavity in outer wall besieged city of this round-formed profile and described core rod, and the top of this annular forming cavity is provided with described gland, and described gland can be gone up in the drive of press mechanism, lower movement also can be covered on described annular forming cavity when moving down.
2. according to neodymium-iron-boron large circle casted die mould claimed in claim 1, it is characterized in that: the forward and backward two ends of described vertical chute be provided with parallel with described horizontal concrete chute before push away groove and pusher groove, the both sides of the front end of described front drift are provided with front drift inclined-plane, and the both sides of the rear end of described back punching head are provided with back punching head inclined-plane;
Before described, push away the left front pushing block and the right front pushing block that in groove, are slidably equipped with the arranged on left and right sides that lays respectively at described front drift, described left front pushing block and right front pushing block are provided with the front promotion inclined-plane matching with described front drift inclined-plane, in described pusher groove, be slidably equipped with left back pushing block and the right back pushing block of the both sides that lay respectively at described back punching head, described left back pushing block and right back pushing block are provided with the rear promotion inclined-plane matching with described back punching head inclined-plane;
Described driving mechanism comprises left cylinder and right cylinder, the output of described left cylinder is provided with left push pedal, in this left push pedal, be provided with side by side three left push rods that are connected with described left front pushing block, left drift and left back pushing block respectively, the output of described right cylinder is provided with right push pedal, is provided with side by side three right push rods that are connected with described right front pushing block, right drift and right back pushing block respectively in this right push pedal.
3. according to neodymium-iron-boron large circle casted die mould claimed in claim 2, it is characterized in that: described baffle plate is provided with left front baffle plate, left back baffle plate, right front baffle plate and right back baffle plate, described left front baffle plate, left back baffle plate, right front baffle plate and right back baffle plate are distributed on the outside of described core rod, between described left front baffle plate and left back baffle plate and between right front baffle plate and right back baffle plate, form described horizontal concrete chute, between described left front baffle plate and right front baffle plate, between left back baffle plate and right back baffle plate, form described vertical chute, described left front baffle plate, left back baffle plate, right front baffle plate and right back baffle plate are all fixed on described baffle plate by fixed block,
The front side of described left front baffle plate and right front baffle plate is provided with front flashboard, between this front flashboard and described left front baffle plate and right front baffle plate, form before described and push away groove, the rear side of described left back baffle plate and right back baffle plate is provided with rear flashboard, between this rear flashboard and described left back baffle plate and right back baffle plate, form described pusher groove, between described front drift and front flashboard, be provided with return spring between described back punching head and rear flashboard.
4. according to the neodymium-iron-boron large circle casted die mould one of claim 1 ~ 3 Suo Shu, it is characterized in that: described gland is made by permeability magnetic material with baffle plate and is connected with the output of magnetizing equipment.
5. according to the neodymium-iron-boron large circle casted die mould one of claim 1 ~ 3 Suo Shu, it is characterized in that: described core rod is up-small and down-big circular cone important actor, and the tapering of this circular cone important actor is 1:20 ~ 1:10.
6. according to the neodymium-iron-boron large circle casted die mould one of claim 1 ~ 3 Suo Shu, it is characterized in that: described core rod is made by stainless steel material.
7. according to the neodymium-iron-boron large circle casted die mould one of claim 1 ~ 3 Suo Shu, it is characterized in that: described press mechanism comprises lower air cylinder, the output of this lower air cylinder is connected with described gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420214802.8U CN203817388U (en) | 2014-04-30 | 2014-04-30 | Profiling die for neodymium-iron-boron large circular ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420214802.8U CN203817388U (en) | 2014-04-30 | 2014-04-30 | Profiling die for neodymium-iron-boron large circular ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203817388U true CN203817388U (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420214802.8U Expired - Fee Related CN203817388U (en) | 2014-04-30 | 2014-04-30 | Profiling die for neodymium-iron-boron large circular ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203817388U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031850A (en) * | 2017-12-14 | 2018-05-15 | 东莞理工学院 | A kind of heap-type mechanism for metal dust processing boss |
| CN111360268A (en) * | 2020-02-21 | 2020-07-03 | 浙江东阳东磁稀土有限公司 | Vertical forming die and forming method for sintered neodymium-iron-boron annular magnet |
-
2014
- 2014-04-30 CN CN201420214802.8U patent/CN203817388U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031850A (en) * | 2017-12-14 | 2018-05-15 | 东莞理工学院 | A kind of heap-type mechanism for metal dust processing boss |
| CN108031850B (en) * | 2017-12-14 | 2019-08-13 | 东莞理工学院 | A kind of heap-type mechanism for metal powder processing boss |
| CN111360268A (en) * | 2020-02-21 | 2020-07-03 | 浙江东阳东磁稀土有限公司 | Vertical forming die and forming method for sintered neodymium-iron-boron annular magnet |
| CN111360268B (en) * | 2020-02-21 | 2022-04-22 | 浙江东阳东磁稀土有限公司 | Vertical forming die and forming method for sintered neodymium-iron-boron annular magnet |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20200430 |