CN215544906U - Double-row manual small radial die for molding cylindrical magnetic steel - Google Patents
Double-row manual small radial die for molding cylindrical magnetic steel Download PDFInfo
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- CN215544906U CN215544906U CN202121452712.9U CN202121452712U CN215544906U CN 215544906 U CN215544906 U CN 215544906U CN 202121452712 U CN202121452712 U CN 202121452712U CN 215544906 U CN215544906 U CN 215544906U
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Abstract
The utility model discloses a double-row manual small radial die for molding cylindrical magnetic steel, which comprises an upper die block, a lower die block, an inner die block and an outer die block, wherein the lower die block is provided with a plurality of lower forming grooves, the lower die block is provided with separating grooves, lower partition plates are detachably arranged in the separating grooves, protruding blocks are symmetrically arranged on two sides of each lower partition plate, the lower die block is provided with through holes for the protruding blocks to extend out, the inner wall of the outer die block is correspondingly provided with a groove, and the protruding blocks are matched with the grooves in a positioning manner; the upper module is correspondingly provided with an upper forming groove, an upper partition plate is integrally formed on the upper module, the upper forming groove is separated by the upper partition plate, and after the upper module and the lower module are covered, the lower forming groove and the upper forming groove form a cylindrical cavity; the inner side module is abutted against the upper module and the lower module, the outer side module is correspondingly abutted against the side edges of the upper module and the lower module, and the outer side module is matched with the inner side module in a positioning mode. The utility model has the following advantages and effects: the mode of batch compression molding is adopted, and the effect of improving the production efficiency is achieved.
Description
Technical Field
The utility model relates to the technical field of magnetic steel forming dies, in particular to a double-row manual small radial die for forming cylindrical magnetic steel.
Background
The magnetic steel is a permanent magnetic material which is most widely applied, is manufactured by a powder metallurgy method, mainly comprises neodymium iron boron magnetic steel, is divided into two types of anisotropy and isotropy, is a permanent magnetic material which is not easy to demagnetize and corrode, has the highest working temperature of 250 ℃, is hard and brittle, can be cut and processed by tools such as diamond sand and the like, and is formed by a die which is processed by alloy steel in one step. The product is widely applied to the fields of permanent magnet motors, loudspeakers and the like.
Usually, the magnetic steel is formed into a cuboid or a cube by one-time extrusion molding of powder through a die, when special-shaped or cylindrical magnetic steel is required to be adopted, the redundant part needs to be cut, so that great waste is generated in the production process, and the problems of high production cost and low size precision exist.
The existing Chinese patent with publication number CN213277785U discloses a die for forming radial oval-shaped magnetic steel, which comprises an upper cover plate, an upper side plate assembly, a lower side plate assembly and a lower bottom plate which are sequentially stacked from top to bottom, wherein the upper cover plate, the upper side plate assembly, the lower side plate assembly and the lower bottom plate are matched to form a sliding cavity, the sliding cavity is horizontally arranged along the length direction, a first punch and a second punch which are opposite to each other are arranged in the sliding cavity in a sliding manner, and the first punch, the second punch, the upper cover plate, the upper side plate assembly, the lower side plate assembly and the lower bottom plate are matched to form a cavity with an oval-shaped cross section; first drift, second drift, upper cover plate, go up side plate subassembly, lower side plate subassembly and bottom plate all set up to non-magnetic material. In the process of adopting the die to press and form, only one magnetic steel can be formed at a time, the purpose of forming a plurality of magnetic steels at a time cannot be realized, and the problem of low production efficiency exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a double-row manual small radial die for molding cylindrical magnetic steel, which adopts a batch compression molding mode and has the effect of improving the production efficiency.
The technical purpose of the utility model is realized by the following technical scheme: a double-row manual small radial die for forming cylindrical magnetic steel comprises an upper die block, a lower die block, an inner die block and an outer die block, wherein the lower die block is provided with a plurality of lower forming grooves with semicircular sections, the lower die block is provided with separating grooves, lower partition plates are detachably arranged in the separating grooves and divide the lower forming grooves into double rows, lugs are symmetrically arranged on two sides of each lower partition plate, the lower die block is provided with through holes for the lugs to extend out, the inner wall of the outer die block is correspondingly provided with grooves, and the lugs are in positioning fit with the grooves; the upper module is correspondingly provided with a plurality of upper forming grooves with semicircular sections, the upper module is integrally formed with an upper partition plate, the upper forming grooves are separated by the upper partition plate, and after the upper module and the lower module are covered, the lower forming grooves and the upper forming grooves form a cylindrical cavity; the inner side module is correspondingly abutted against the end faces of the upper module and the lower module, the outer side module is correspondingly abutted against the side edges of the upper module and the lower module, and the outer side module is in positioning fit with the inner side module.
By adopting the technical scheme, the inner side module is correspondingly placed at the end part of the lower module, the inner wall of the inner side module is attached to the end face of the lower module, the outer side module is correspondingly placed at the side edge of the lower module, the inner wall of the outer side module is attached to the side surface of the lower module, the outer side module and the inner side module are in positioning fit, the lower partition plate is correspondingly inserted into the separation groove for positioning, the lower forming groove of the lower module is divided into two rows, a proper amount of powder for pressing is poured into the plurality of cylindrical cavities, finally the upper module is correspondingly covered on the lower module, the upper module is uniformly shaken by workers, the upper module is placed in the press for pressing the powder in the cylindrical cavities, the press presses the upper module towards the lower module, and the powder is uniformly distributed in the cylindrical cavities to form a cylinder. So, can once press forming a plurality of cylindricality magnet steel, form batch press forming, compare in prior art, have the effect that improves production efficiency. After the lower partition plate is arranged in the separation groove, the convex blocks on the two sides extend out of the through hole, and when the outer side modules are correspondingly arranged on the two sides of the lower module, the convex blocks can be correspondingly embedded into the grooves, so that the positioning of the convex blocks and the grooves is realized; in addition, after the cylindrical magnetic steel is pressed and formed, when the cylindrical magnetic steel is taken out from the lower forming groove, the lower partition plate can be lifted up through the convex blocks on the two sides, and after the lower partition plate is lifted to a certain height, the lower partition plate is pushed outwards along the axial direction of the cylindrical magnetic steel, so that a larger gap can be formed between the end surfaces of the corresponding cylindrical magnetic steel, the cylindrical magnetic steel can be conveniently and manually held on the two end surfaces of the cylindrical magnetic steel to be taken out from the lower forming groove, and the material taking is convenient.
The utility model is further provided with: the two ends of the outer side module extend inwards to form extending parts which are perpendicular to the outer side module, and the inner wall of each extending part is abutted against the outer wall of the inner side module in a positioning fit mode.
Through adopting above-mentioned technical scheme, when the outside module was installed respectively in the side of module and the both sides of inboard module down, the extension offseted with the outer wall of inboard module for inboard module is spacing and can't be to the direction motion of keeping away from module down, so can realize assembling.
The utility model is further provided with: the inner wall of the extension part is provided with a guide surface.
Through adopting above-mentioned technical scheme, the setting of spigot surface can be convenient for assemble the side of outside module in module down, and at the in-process of assembling, the spigot surface cooperates with the side direction of inboard module, is convenient for realize quick installation, when the press forming after, also can make things convenient for outside module and inboard module separation.
The utility model is further provided with: the inner wall of the outer side module is provided with a through hole corresponding to the inner side module, when the outer side module and the inner side module are matched in a positioning mode, two sides, close to the cylindrical cavity, of the inner side module are attached to the inner wall of the outer side module, and two sides, far away from the cylindrical cavity, of the inner side module correspond to the through hole.
Through adopting above-mentioned technical scheme, because be formed with the slotted hole between the both through the through hole between outside module and the inboard module, this slotted hole can prevent to a certain extent that the suppression from accomplishing the back, because the powder card is difficult to the split in the clearance between outside module and the inboard module, so, set up the through hole and can make things convenient for both to accomplish the back quickly separating at the suppression.
The utility model is further provided with: the bottom surface of lower baffle has seted up the bar embedded groove, and the separation inslot corresponds and is provided with the sand grip, and when lower baffle was installed in the separation inslot correspondingly, the sand grip was embedded in the bar embedded groove correspondingly.
Through adopting above-mentioned technical scheme, when the baffle was installed in the partition tank down, the sand grip was embedded into in the bar embedded groove correspondingly, can play better location effect.
The utility model is further provided with: the terminal surface of lower module extends along lower part shaping groove and is provided with the arc chimb, and the inboard module correspondence has seted up the arc caulking groove, arc chimb and arc caulking groove location fit.
Through adopting above-mentioned technical scheme, arc chimb inlays the back mutually with the arc caulking groove, can realize the location fit between inboard module and the lower module, in addition, because the axial extension setting of arc chimb along lower part shaping groove can play certain effect of lifting when lower baffle promotes cylindricality magnet steel.
The utility model is further provided with: the top of lower baffle is equipped with the location strip along length direction, and the bottom surface of going up the baffle has seted up the constant head tank along length direction correspondence, and when last module lid closed down the module, location strip and constant head tank location fit.
Through adopting above-mentioned technical scheme, when last module lid fits down on the module, the location strip is embedded into in the constant head tank correspondingly, can make corresponding position between them more accurate, and the shaping effect of cylindricality magnet steel is better.
The utility model is further provided with: the both sides wall of going up the module is provided with spacing grafting piece, and the inner wall correspondence of outside module has seted up spacing inserting groove, and spacing inserting groove is pegged graft with spacing grafting piece and is cooperated.
By adopting the technical scheme, when the upper module is correspondingly covered on the lower module, the limiting insertion block can slide in along the limiting insertion groove, so that the accuracy of the covering position of the upper module and the assembling convenience are improved.
The utility model is further provided with: the limiting insertion block is arranged to be a dovetail block, the limiting insertion groove is correspondingly arranged to be a dovetail groove, and the limiting insertion block extends upwards to form a holding part.
By adopting the technical scheme, when the dovetail block of the upper module is correspondingly inserted into the dovetail groove of the lower module, the outer module can be prevented from moving in the direction away from the lower module in the pressing process, and certain effect of clamping and positioning is achieved; when the upper module is removed from the lower module, a worker may lift the upper module through the grip part and then may move the inner module and the outer module outward.
In conclusion, the utility model has the following beneficial effects:
1. the lower forming grooves are divided into two rows by the detachable lower partition plate, so that a plurality of cylindrical magnetic steels can be formed by one-time pressing, and batch pressing is formed, and compared with the prior art, the lower forming grooves have the effect of improving the production efficiency;
2. the mode that the lugs are arranged on the two sides of the lower partition plate is adopted, so that the positioning between the outer module and the lower partition plate can be realized, the lower partition plate can be lifted and then used for pushing the cylindrical magnetic steel outwards, a larger gap is formed between the end surfaces of the corresponding cylindrical magnetic steel, the cylindrical magnetic steel can be conveniently and manually held on the two end surfaces of the cylindrical magnetic steel to be taken out of the lower forming groove, and the taking is convenient;
3. the through hole is formed in the inner wall of the outer side module, so that a slotted hole is formed between the side walls of the outer side module and the inner side module, after pressing is completed to a certain extent, the powder is difficult to split due to the fact that the powder is clamped in a gap between the outer side module and the inner side module, and therefore the through hole is formed, and the outer side module and the inner side module can be rapidly separated after pressing is completed.
Drawings
Fig. 1 is a schematic diagram of the overall structural relationship of the first embodiment.
Fig. 2 is an exploded view of the first embodiment.
FIG. 3 is a schematic view showing a state where the lower module and the lower partition plate are separated from each other in the first embodiment.
Fig. 4 is a schematic structural relationship diagram of an upper module and a lower partition plate in the first embodiment.
Fig. 5 is a schematic view of the overall structure of the second embodiment.
Fig. 6 is an exploded view of the second embodiment.
In the figure: 1. an upper module; 11. an upper forming groove; 12. an upper partition plate; 121. positioning a groove; 13. a limiting plug-in block; 131. a grip portion; 2. a lower module; 21. a lower forming groove; 22. a separation tank; 221. a convex strip; 23. a through hole; 24. an arc-shaped convex edge; 3. an inboard module; 31. an arc caulking groove; 4. an outboard module; 41. a groove; 42. an extension portion; 421. a guide surface; 43. a through hole; 44. a limiting insertion groove; 5. a lower partition plate; 51. a strip-shaped embedded groove; 52. a bump; 53. a positioning bar; 6. cylindrical magnetic steel.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
The first embodiment is as follows:
a double-row manual small radial die for forming cylindrical magnetic steel is shown in figures 1-3 and comprises an upper die block 1, a lower die block 2, two symmetrically arranged inner side die blocks 3 and two symmetrically arranged outer side die blocks 4. The lower module 2 is provided with three lower forming grooves 21 with semicircular sections, the middle part of the lower module 2 is vertically and downwards provided with a separation groove 22, a lower partition plate 5 is detachably arranged in the separation groove 22, the lower forming grooves 21 are separated into two rows by the lower partition plate 5, namely 6 lower forming grooves 21 are formed, and after the upper module 1 and the lower module 2 are covered, the lower forming grooves 21 and the upper forming grooves 11 form 6 cylindrical cavities. The bottom surface of lower baffle 5 has seted up bar embedded groove 51, and the corresponding sand grip 221 that is provided with in the separate tank 22, when baffle 5 corresponds when installing in separate tank 22 down, the sand grip 221 corresponds and imbeds in bar embedded groove 51, can play better location effect.
As shown in fig. 2-4, T-shaped protrusions 52 are symmetrically disposed on two sides of the lower partition plate 5, a through hole 23 for the protrusion 52 to extend out is formed in the lower module 2, a groove 41 is correspondingly formed in the inner wall of the outer module 4, and the protrusion 52 is in positioning fit with the groove 41. The upper module 1 is correspondingly provided with a plurality of upper forming grooves 11 with semicircular sections, the upper module 1 is integrally formed with an upper partition plate 12, the three upper forming grooves 11 are separated by the upper partition plate 12, the upper partition plate 12 divides the upper forming grooves 11 into 6, and the upper partition plate 12 corresponds to the lower partition plate 5; the inner wall of the inner side module 3 is correspondingly abutted against the end faces of the upper module 1 and the lower module 2, the inner wall of the outer side module 4 is correspondingly abutted against the side edges of the upper module 1 and the lower module 2, and the outer side module 4 is matched with the inner side module 3 in a positioning manner. The top of lower baffle 5 is equipped with location strip 53 along length direction, and the bottom surface of going up baffle 12 has seted up constant head tank 121 along length direction correspondence, and when last module 1 covered in module 2 down, location strip 53 and constant head tank 121 location cooperation. When the upper module 1 is covered on the lower module 2, the positioning bar 53 is correspondingly embedded into the positioning groove 121, so that the corresponding positions of the upper module and the lower module are more accurate, and the forming effect of the cylindrical magnetic steel 6 is better.
As shown in fig. 2, two ends of the outside module 4 extend inward to form extending portions 42, the extending portions 42 are perpendicular to the outside module 4, an inner wall of each extending portion 42 abuts against and is in positioning fit with an outer wall of the inside module 3, and a guide surface 421 is arranged on the inner wall of each extending portion 42. When outside module 4 installs respectively in the side of module 2 and the both sides of inboard module 3 down, extension 42 offsets with the outer wall of inboard module 3, make inboard module 3 by spacing and unable to move to the direction of keeping away from module 2 down, so can realize assembling the setting of spigot surface 421 and can be convenient for assemble outside module 4 in the side of module 2 down, in assembling the in-process, spigot surface 421 and inboard module 3's side direction cooperation, be convenient for realize quick installation, after the press forming, also can make things convenient for outside module 4 and inboard module 3 to separate.
As shown in fig. 2, a through hole 43 is formed in the inner wall of the outer module 4, the through hole 43 corresponds to the inner module 3, when the outer module 4 and the inner module 3 are positioned and matched, two sides of the inner module 3 close to the cylindrical cavity are attached to the inner wall of the outer module 4, and two sides of the inner module 3 far away from the cylindrical cavity correspond to the through hole 43. Because be formed with the slotted hole between outside module 4 and the inboard module 3 through-hole 43 between the two, this slotted hole can prevent to a certain extent that the suppression from accomplishing the back, because the powder card is difficult to the split in the clearance between outside module 4 and inboard module 3, so, set up through-hole 43 and can make things convenient for both to separate fast after the suppression is accomplished.
As shown in fig. 2 and fig. 3, the end surface of the lower module 2 is provided with an arc-shaped flange 24 extending along the lower forming groove 21, the inner module 3 is correspondingly provided with an arc-shaped caulking groove 31, and the arc-shaped flange 24 is in positioning fit with the arc-shaped caulking groove 31. Arc chimb 24 inlays the back mutually with arc caulking groove 31, can realize the location fit between inboard module 3 and lower module 2, in addition, because arc chimb 24 sets up along the axial extension of lower part shaping groove 21, can play certain effect of lifting when lower baffle 5 promotes cylindricality magnet steel 6.
The basic working principle of the utility model is as follows: the inner side module 3 is correspondingly placed at the end part of the lower module 2, the inner wall of the inner side module 3 is attached to the end face of the lower module 2, the outer side module 4 is correspondingly placed at the side edge of the lower module 2, the inner wall of the outer side module 4 is attached to the side face of the lower module 2, the outer side module 4 is matched with the inner side module 3 in a positioning mode, the lower partition plate 5 is correspondingly inserted into the separation groove 22 for positioning, the lower forming groove 21 of the lower module 2 can be separated into two rows, a proper amount of powder for pressing is poured into the plurality of cylindrical cavities, the upper module 1 is correspondingly covered on the lower module 2, the upper module is uniformly shaken by a worker, the mold is placed in the press to press the powder in the cylindrical cavities, the press compresses the upper module 1 towards the lower module 2, and the powder is uniformly distributed in the cylindrical cavities and forms a cylinder. So, can a plurality of cylindricality magnet steel 6 of one shot press forming, form batch press forming, compare in prior art, have the effect that improves production efficiency. When the lower partition 5 is mounted in the separation groove 22, the protrusions 52 on both sides extend out of the through holes 23, and when the outer modules 4 are correspondingly mounted on both sides of the lower module 2, the protrusions 52 are correspondingly inserted into the grooves 41, so that the positioning of the two is realized.
After the cylindrical magnetic steel 6 is pressed and formed, when the cylindrical magnetic steel 6 is taken out from the lower forming groove 21, the outer module 4 and the inner module 3 can be sequentially removed, then the upper module 1 is taken down, the lower partition plate 5 is lifted up to a certain height through the convex blocks 52 on the two sides, and is pushed outwards along the axial direction of the cylindrical magnetic steel 6, so that a larger gap can be formed between the end surfaces of the corresponding cylindrical magnetic steel 6, the cylindrical magnetic steel 6 can be conveniently and manually held on the two end surfaces of the cylindrical magnetic steel 6 to be taken out of the lower forming groove 21, and the material taking is convenient.
Example two:
a kind of double-row manual small radial mould used for shaping the cylindrical magnetic steel, as shown in fig. 5, the difference of this embodiment and embodiment one lies in: go up the both sides wall of module 1 and be provided with spacing grafting piece 13, spacing inserting groove 44 has been seted up to the inner wall correspondence of outside module 4, and spacing inserting groove 44 is pegged graft with spacing grafting piece 13 and is cooperated, and in this embodiment, spacing grafting piece 13 sets up to the dovetail piece, and spacing grafting groove 44 correspondence sets up to the dovetail, and spacing grafting piece 13 upwards extends to be formed with portion 131 that grips. When the upper module 1 is correspondingly covered on the lower module 2, the limiting insertion block 13 can slide in along the limiting insertion groove 44, so that the position accuracy and the assembling convenience of the upper module 1 when being covered are improved, and when the dovetail block of the upper module 1 is correspondingly inserted in the dovetail groove of the lower module 2, the outer module 4 can be prevented from moving in the direction far away from the lower module 2 in the pressing process, so that a certain tightening positioning effect is achieved; when the upper module 1 is removed from the lower module 2, a worker can lift the upper module 1 up through the grip 131 and then can move the inner module 3 and the outer module 4 outward.
Since the other structures of this embodiment are the same as those of the first embodiment, they are not described herein again.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (9)
1. The utility model provides a double manual small radial mould for shaping cylindricality magnet steel, includes module (1), lower module (2), inboard module (3) and outside module (4), its characterized in that: the lower module (2) is provided with a plurality of lower forming grooves (21) with semicircular sections, the lower module (2) is provided with separating grooves (22), lower partition plates (5) are detachably arranged in the separating grooves (22), the lower forming grooves (21) are separated into two rows by the lower partition plates (5), convex blocks (52) are symmetrically arranged on two sides of the lower partition plates (5), the lower module (2) is provided with through holes (23) for the convex blocks (52) to extend out, the inner wall of the outer module (4) is correspondingly provided with grooves (41), and the convex blocks (52) are matched with the grooves (41) in a positioning manner; the upper module (1) is correspondingly provided with a plurality of upper forming grooves (11) with semicircular sections, the upper module (1) is integrally formed with an upper partition plate (12), the upper forming grooves (11) are separated by the upper partition plate (12), and after the upper module (1) and the lower module (2) are covered, the lower forming grooves (21) and the upper forming grooves (11) form a cylindrical cavity; the inner side module (3) is correspondingly abutted against the end faces of the upper module (1) and the lower module (2), the outer side module (4) is correspondingly abutted against the side edges of the upper module (1) and the lower module (2), and the outer side module (4) is matched with the inner side module (3) in a positioning mode.
2. The double-row manual small radial mold for molding the cylindrical magnetic steel as claimed in claim 1, wherein: the two ends of the outer side module (4) extend inwards to form extending parts (42), the extending parts (42) are perpendicular to the outer side module (4), and the inner wall of each extending part (42) is abutted against the outer wall of the inner side module (3) in a positioning fit mode.
3. The double-row manual small radial mold for molding the cylindrical magnetic steel as claimed in claim 2, wherein: the inner wall of the extension part (42) is provided with a guide surface (421).
4. The double-row manual small radial mold for molding the cylindrical magnetic steel as claimed in claim 1, wherein: through hole (43) have been seted up to the inner wall of outside module (4), through hole (43) with inboard module (3) are corresponding, work as outside module (4) with when inboard module (3) location cooperation, inboard module (3) are close to the both sides of cylindricality die cavity with the inner wall of outside module (4) is laminated mutually, inboard module (3) are kept away from the both sides of cylindricality die cavity with through hole (43) are corresponding.
5. The double-row manual small radial mold for molding the cylindrical magnetic steel as claimed in claim 1, wherein: strip embedded groove (51) have been seted up to the bottom surface of lower baffle (5), it is provided with sand grip (221) to correspond in separating groove (22), works as lower baffle (5) correspond install in when separating groove (22), sand grip (221) correspond the embedding in strip embedded groove (51).
6. The double-row manual small radial mold for molding the cylindrical magnetic steel as claimed in claim 1, wherein: the end face of the lower module (2) is provided with an arc-shaped convex edge (24) in an extending mode along the lower forming groove (21), the inner side module (3) is correspondingly provided with an arc-shaped caulking groove (31), and the arc-shaped convex edge (24) is matched with the arc-shaped caulking groove (31) in a positioning mode.
7. The double-row manual small radial mold for molding the cylindrical magnetic steel as claimed in claim 1, wherein: the top of lower baffle (5) is equipped with location strip (53) along length direction, the bottom surface of going up baffle (12) has seted up constant head tank (121) along length direction correspondence, works as go up module (1) lid fits when lower module (2), location strip (53) with constant head tank (121) location fit.
8. The double-row manual small radial mold for molding the cylindrical magnetic steel as claimed in claim 1, wherein: the two side walls of the upper module (1) are provided with limiting insertion blocks (13), the inner wall of the outer module (4) is correspondingly provided with limiting insertion grooves (44), and the limiting insertion grooves (44) are in insertion fit with the limiting insertion blocks (13).
9. The double-row manual small radial mold for molding the cylindrical magnetic steel as claimed in claim 8, wherein: spacing grafting piece (13) set up to the dovetail piece, spacing inserting groove (44) correspond and set up to the dovetail, spacing grafting piece (13) upwards extend and are formed with portion of gripping (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121452712.9U CN215544906U (en) | 2021-06-29 | 2021-06-29 | Double-row manual small radial die for molding cylindrical magnetic steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121452712.9U CN215544906U (en) | 2021-06-29 | 2021-06-29 | Double-row manual small radial die for molding cylindrical magnetic steel |
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| CN215544906U true CN215544906U (en) | 2022-01-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674182A (en) * | 2022-03-22 | 2022-06-28 | 星河动力(北京)空间科技有限公司 | Separation shield screw protection structure and preparation device and protection method thereof |
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2021
- 2021-06-29 CN CN202121452712.9U patent/CN215544906U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674182A (en) * | 2022-03-22 | 2022-06-28 | 星河动力(北京)空间科技有限公司 | Separation shield screw protection structure and preparation device and protection method thereof |
| CN114674182B (en) * | 2022-03-22 | 2023-11-14 | 星河动力(北京)空间科技有限公司 | Separation shield screw protection structure, preparation device and protection method thereof |
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