CN203124732U - Nd-Fe-B magnet forming mold - Google Patents
Nd-Fe-B magnet forming mold Download PDFInfo
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- CN203124732U CN203124732U CN 201320128656 CN201320128656U CN203124732U CN 203124732 U CN203124732 U CN 203124732U CN 201320128656 CN201320128656 CN 201320128656 CN 201320128656 U CN201320128656 U CN 201320128656U CN 203124732 U CN203124732 U CN 203124732U
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- mould
- cavity
- pressure head
- iron boron
- neodymium iron
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Abstract
The utility model relates to a Nd-Fe-B magnet forming mold. The Nd-Fe-B magnet forming mold comprises a pressure head and a mold body, wherein more than one cylindrical cavity is vertically formed in the mold body; more than one cylindrical core rod is arranged on one face of the pressure head, which is matched with the mold body, in a protruding manner; and the core rod is in one-to-one correspondence and clearance fit with the cavity. Compared with the prior art, the Nd-Fe-B magnet forming mold has the benefits that the operation is simple; a blank obtained via pressing has no a central line and is good in roundness, low in probability of cracking and edge breaking and adjustable in length; and the qualification rate of the blank can reach over 99 percent.
Description
Technical field
The utility model relates to the magnet field shaping technique, is a kind of neodymium iron boron magnetic body mould specifically.
Background technology
Neodymium iron boron magnetic body belongs to a kind of of magnet, has the advantages that volume is little, in light weight and magnetic is strong, is the magnet of ratio of performance to price the best up to now.Ndfeb magnet is the tetragonal crystal that is formed by neodymium, iron, boron (Nd2Fe14B).Neodymium iron boron magnetic body is as third generation rare earth permanent-magnetic material, has very high performance, it is widely used in industries such as the energy, traffic, machinery, medical treatment, IT, household electrical appliances, it particularly is the development of the kownledge economy of representative along with information technology, constantly bring new purposes to functional materials such as rare earth permanent magnet neodymium iron boron industries, this brings more vast market prospect for the neodymium iron boron industry.
It is many based on PM technique to make sintered Nd-Fe-B permanent magnet, and manufacture process comprises operations compositions such as batching, melting, powder process, batch mixing, compression moulding, sintering, machined, surface treatment.Wherein Ya Zhi purpose is utilized the compacting of press exactly, makes Magnaglo have certain shape, size, pressed density and intensity.Number of patent application is 201010272579.9, patent name is CN202291403U for Chinese invention patent and the patent No. of " mould of the even alignment magnetic field of molding neodymium iron boron ", patent name all discloses the cylindrical press-moulding die of a kind of neodymium iron boron for the Chinese utility model patent of " the cylindrical press-moulding die of a kind of neodymium iron boron ", comprise patrix (seaming chuck) and counterdie (compacted under termination), wherein the upper surface of the lower surface of patrix (seaming chuck) and counterdie (compacted under termination) is made the single or multiple half-cylindrical concave surface of symmetry respectively, has formed single or multiple cylindrical mold cavities when patrix (seaming chuck) and counterdie (compacted under termination) pressing.Though this mould production efficiency is higher, can suppress the green compact more than 10 at every turn, because cylindrical mold cavities must form by two parts (upper die and lower die) pressing up and down, so there is following defective:
1, suppresses the base substrate that obtains and be easy to generate two lines that protrude from the base substrate arc surface at stitching surface, be commonly called as " center line ", make that the circularity of base substrate is poor, locate generation at " center line " easily during following process and ftracture, collapse problems such as limit;
2, accurately contraposition pressing of upper die and lower die, the vibration that mould is slight or misoperation all cause upper and lower mould dislocation easily and make base substrate profile stray circle cylindricality, and operation easier is big, the product rejection rate height;
3, base substrate length is non-adjustable, can't satisfy the processing request of different size.
Above-mentioned mould is suppressed the base substrate qualification rate that obtains only can reach 60～80%.
The utility model content
In order to overcome the defective of above-mentioned prior art, technical problem to be solved in the utility model provides a kind of neodymium iron boron magnetic body mould, it is simple to operate, and the base substrate circularity that compacting obtains is good, not easy to crack and collapse limit, adjustable length, and the base substrate qualification rate can reach more than 99%.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of neodymium iron boron magnetic body mould, comprise pressure head and mould body, described mould vertically is provided with more than one columniform cavity on one's body, and one side that described pressure head matches with the mould body is protruded and is provided with more than one columniform plug, and described plug and described cavity be corresponding and matched in clearance one by one.
Wherein, described mould body is rectangular, described cavity is evenly distributed on the middle part of mould body and forms the cavity matrix with the matrix arrangement mode, spacing between adjacent two cavitys on the length of cavity matrix or the width is 2mm, the length of cavity matrix is no more than 0.7 of mould height degree, and the width of cavity matrix is no more than 0.6 of mould body width.
Wherein, the two ends, the left and right sides of described mould body offer a groove that runs through mould body rear and front end respectively, be embedded with the magnetic conduction bar in the described groove, the distance of described groove and mould body end face is 1/3～2/3 of mould height degree, and the bottom of described groove and the distance between the cavity are 2～5mm.
Wherein, the end face of described pressure head convexes with the projection that the longitudinal section is isosceles trapezoid.
The utility model compared with prior art has following beneficial effect: simple to operate, the base substrate that compacting obtains does not have center line, circularity is good, not easy to crack and collapse limit, adjustable length, and the base substrate qualification rate can reach more than 99%.
Description of drawings
Figure 1 shows that the structural representation of the utility model embodiment.
Label declaration:
1, pressure head; 2, mould body; 10, plug; 11, projection;
20, cavity; 21, groove.
The specific embodiment
By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.
See also shown in Figure 1, the neodymium iron boron magnetic body mould of present embodiment, comprise pressure head 1 and mould body 2, vertically be provided with more than one columniform cavity 20 on the described mould body 2, one side that described pressure head 1 matches with mould body 2 is protruded and is provided with more than one columniform plug 10, and described plug 10 and described cavity 20 be corresponding and matched in clearance one by one.
During compacting, only need in columniform cavity 20, to insert a certain amount of Magnaglo, then plug 10 aligned with cavities 20 pressings on the pressure head 1 can be obtained columniform base substrate, simple to operate efficient.Because the arc surface of base substrate is by columniform cavity 20 independent moulding, therefore the circularity of base substrate is good, do not exist on the arc surface of base substrate in " center line ", also need not to carry out following process to eliminate " center line ", locate generation at " center line " easily when therefore having reduced processing capacity and having avoided following process and ftracture, collapse problems such as limit.In pressing process, by adjusting the loading of Magnaglo, can make the base substrate of different length, need not to revise or more die change body and pressure head, the product adaptation scope is wide.Through production inspection, adopt neodymium iron boron magnetic body mould of the present utility model, the base substrate qualification rate that compacting obtains can be increased to more than 99%.
Please continue with reference to shown in Figure 1, in the above-described embodiments, described mould body 2 is rectangular, described cavity 20 is evenly distributed on the middle part of mould body 2 and forms the cavity matrix with the matrix arrangement mode, spacing between adjacent two cavitys 20 on the length of cavity matrix or the width is 2mm, the length of cavity matrix is no more than 0.7 of mould body 2 length, and the width of cavity matrix is no more than 0.6 of mould body 2 width.Accordingly, the plug 10 on the described pressure head 1 also is same matrix arrangement mode corresponding to cavity 20.This design has the following advantages: guarantee that 1, the mould body possesses enough intensity and not fragile, cavity is not yielding yet; 2, leaving enough spacings between the cavity influences each other when magnetizing to avoid base substrate; 3, cavity distributes uniform sequentially and makes the magnetization high conformity of base substrate; 4, improve the one-time formed base substrate quantity of mould to greatest extent, improved production efficiency.
Please continue with reference to shown in Figure 1, in the above-described embodiments, the two ends, the left and right sides of described mould body 2 offer a groove 21 that runs through mould body 2 rear and front ends respectively, be embedded with the magnetic conduction bar in the described groove 21, described groove 21 is 1/3～2/3 of mould body 2 height with the distance of mould body 2 end faces, and the distance between the bottom of described groove 21 and the cavity 20 is 2～5mm.Find after deliberation, adopt above-mentioned magnetization configuration, can effectively shorten the magnetizing time of base substrate and improve the magnetic field homogeneity of base substrate, the uniformity deviation in magnetic field can be reduced to below 3%.
In the above-described embodiments, for the ease of dismounting, the end face of described pressure head 1 convexes with the projection 11 that the longitudinal section is isosceles trapezoid, projection 11 size so that staff or manipulator handling be advisable.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (4)
1. neodymium iron boron magnetic body mould, it is characterized in that: comprise pressure head and mould body, described mould vertically is provided with more than one columniform cavity on one's body, one side that described pressure head matches with the mould body is protruded and is provided with more than one columniform plug, and described plug and described cavity be corresponding and matched in clearance one by one.
2. neodymium iron boron magnetic body mould according to claim 1, it is characterized in that: described mould body is rectangular, described cavity is evenly distributed on the middle part of mould body and forms the cavity matrix with the matrix arrangement mode, spacing between adjacent two cavitys on the length of cavity matrix or the width is 2mm, the length of cavity matrix is no more than 0.7 of mould height degree, and the width of cavity matrix is no more than 0.6 of mould body width.
3. neodymium iron boron magnetic body mould according to claim 2, it is characterized in that: the two ends, the left and right sides of described mould body offer a groove that runs through mould body rear and front end respectively, be embedded with the magnetic conduction bar in the described groove, the distance of described groove and mould body end face is 1/3～2/3 of mould height degree, and the bottom of described groove and the distance between the cavity are 2～5mm.
4. neodymium iron boron magnetic body mould according to claim 1, it is characterized in that: the end face of described pressure head convexes with the projection that the longitudinal section is isosceles trapezoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128656 CN203124732U (en) | 2013-03-20 | 2013-03-20 | Nd-Fe-B magnet forming mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128656 CN203124732U (en) | 2013-03-20 | 2013-03-20 | Nd-Fe-B magnet forming mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203124732U true CN203124732U (en) | 2013-08-14 |
Family
ID=48932753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320128656 Expired - Lifetime CN203124732U (en) | 2013-03-20 | 2013-03-20 | Nd-Fe-B magnet forming mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203124732U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170620A (en) * | 2013-03-20 | 2013-06-26 | 宁德市星宇科技有限公司 | Neodymium iron boron magnetic body forming die |
| CN103611936A (en) * | 2013-11-28 | 2014-03-05 | 山西中泰源工业自动化设备有限公司 | Mold used in robot system for magnetic material die-casting forming |
-
2013
- 2013-03-20 CN CN 201320128656 patent/CN203124732U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170620A (en) * | 2013-03-20 | 2013-06-26 | 宁德市星宇科技有限公司 | Neodymium iron boron magnetic body forming die |
| CN103170620B (en) * | 2013-03-20 | 2015-06-17 | 宁德市星宇科技有限公司 | Neodymium iron boron magnetic body forming die |
| CN103611936A (en) * | 2013-11-28 | 2014-03-05 | 山西中泰源工业自动化设备有限公司 | Mold used in robot system for magnetic material die-casting forming |
| CN103611936B (en) * | 2013-11-28 | 2015-11-25 | 山西中泰源工业自动化设备有限公司 | For the mould in the robot system of magnetic material die-cast formation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210623 Granted publication date: 20130814 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20211223 Granted publication date: 20130814 |
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| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20211223 Granted publication date: 20130814 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230223 Granted publication date: 20130814 |
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| PD01 | Discharge of preservation of patent | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |
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| CX01 | Expiry of patent term |