CN207358160U - Powder metallurgy pressing die - Google Patents
Powder metallurgy pressing die Download PDFInfo
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- CN207358160U CN207358160U CN201721035206.3U CN201721035206U CN207358160U CN 207358160 U CN207358160 U CN 207358160U CN 201721035206 U CN201721035206 U CN 201721035206U CN 207358160 U CN207358160 U CN 207358160U
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- upper mold
- lower die
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Abstract
It the utility model is related to powder metallurgical technology, disclose a kind of powder metallurgy pressing die, including former, the top of the former is upper mold, the upper mold includes interior upper mold and outer upper mold, the interior upper mold is located in the outer upper mold, transmission section is formed between the interior upper mold and outer upper mold, the lower section of the former is lower die, the lower die includes interior lower die and outer lower die, it is pressed compact between upper die and lower die in the former, horizontal exhausting-gas hole is provided with the outer upper mold, the exhausting-gas hole connects the transmission section and the external world.The utility model increases the design of exhausting-gas hole on the outside of outer upper mold, solves powder in the upper powder accumulation phenomenon for being punched through dead band, ensure that the geometric tolerance of product, reduce school mould number, extend the service life of mould.
Description
Technical field
Powder metallurgical technology is the utility model is related to, particularly a kind of powder metallurgy pressing die.
Background technology
PM technique by material science and metal-forming techniques it is perfect combine, become the height having a large capacity and a wide range
Effect, section material, it is energy saving less, without cutting New Processing, be widely used in automobile, agricultural machinery, textile machine, household electrical appliances production
In the main computer boxes such as product, office machinery.
Referring to attached drawing 1, in part pressing process, powder is subjected to 5 to 6 tons every square centimeter of pressure, is gradually adding
During pressure, there is sub-fraction powder to be entered by the fit clearance between stamping in the transmission section of stamping, every time compacting
The powder that stroke runs away to transmission section be it is more micro, 0.5% generally not over single part dosage, but by thousands of time
More powder will be accumulated after compacting circulation, the powder into bottom punch transmission section can further fall on stamping method due to gravity
It is blue compacting nearby to be had an impact, but the powder for entering upper punch transmission section can be deposited in outer upper punch inner side and it is interior on
In transmission section on the outside of stamping, it can unevenly enter in pressing process in stamping fit clearance, seriously affect the dress of mould
With precision, the geometric tolerance of product is influenced indirectly, upper mold need to be assembled again, otherwise the geometric tolerance of part can be overproof,
Die surface can produce to be pulled caused by card powder, and powder metallurgy is generally used for producing in enormous quantities, and single produces 50000
Be it is universal, repeatedly reinstall that upper mold is serious to have impact on production efficiency, increase the cost of compacting.
Utility model content
The purpose of this utility model is that solve the above problems, there is provided a kind of powder metallurgy pressing die, effectively emptying are saturating
The powder of dead band accumulation.
The technical scheme adopted by the utility model is that：
A kind of powder metallurgy pressing die, including former, it is characterized in that, the top of the former is upper mold, the upper mold
Including interior upper mold and outer upper mold, the interior upper mold is located in the outer upper mold, and transmission is formed between the interior upper mold and outer upper mold
Section, the lower section of the former are lower die, and the lower die includes interior lower die and outer lower die, between the upper die and lower die in the former
For pressed compact, horizontal exhausting-gas hole is provided with the outer upper mold, the exhausting-gas hole connects the transmission section and the external world.
Further, the hole leads to uniformly distributed on the excircle of the outer upper mold.
Further, the quantity of the lower die is more than 2.
Further, the pressed compact is vacuum pump rotor.
The beneficial effects of the utility model are：
Increase the design of exhausting-gas hole on the outside of outer upper mold, solve powder in the upper powder accumulation phenomenon for being punched through dead band, guarantor
The geometric tolerance of product has been demonstrate,proved, has reduced school mould number, has extended the service life of mould.
Brief description of the drawings
Attached drawing 1 is pressing die powder accumulation schematic diagram in the prior art；
Attached drawing 2 is the utility model mould pressing position structure diagram；
Attached drawing 3 moves powder positional structure schematic diagram for the utility model mould；
Attached drawing 4 arranges powder schematic diagram for exhausting-gas hole.
Numbering in attached drawing is respectively：
Upper mold in 1.；2. outer upper mold；
3. former；4. it is molded pressed compact；
Lower die in 5.；6. outer lower die；
7. transmission section；8. exhausting-gas hole.
Embodiment
Elaborate below in conjunction with the accompanying drawings to the embodiment of the utility model powder metallurgy pressing die.
Referring to attached drawing 2, powder metallurgy pressing die includes interior upper mold 1, outer upper mold 2, former 3, interior lower die 5, outer lower die 6；
Wherein, interior upper mold 1, outer upper mold 2, outer lower die 6 and interior lower die 5 are arranged in former 3, and interior upper mold 1 is arranged in outer upper mold 2, interior
Transmission section 7 is formed between upper mold 1 and outer upper mold 2, exhausting-gas hole 8 is designed with outer upper mold 2；Exhausting-gas hole 8 connects transmission section 7 and outer
Boundary.Pressed compact 4 is molded between interior upper mold 2, outer upper mold 1, interior lower die 5, outer lower die 6.
It is powder for molding between interior upper mold 2, outer upper mold 1, interior lower die 5, outer lower die 6 when moving powder position referring to attached drawing 3.
Referring to attached drawing 4, when mould is from when to move powder position transition be pressing position（It is changed into attached drawing 2 from attached drawing 3）, outer upper mold
The cavity of transmission section 7 between 1 and interior upper mold 2 diminishes, and air can carry powder and be discharged from exhausting-gas hole 8.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
Art personnel, on the premise of the utility model principle is not departed from, can also make some improvements and modifications, these improvements and modifications
Also it should be regarded as the scope of protection of the utility model.
Claims (4)
1. a kind of powder metallurgy pressing die, including former, it is characterised in that：The top of the former is upper mold, the upper mold
Including interior upper mold and outer upper mold, the interior upper mold is located in the outer upper mold, and transmission is formed between the interior upper mold and outer upper mold
Section, the lower section of the former are lower die, and the lower die includes interior lower die and outer lower die, between the upper die and lower die in the former
For pressed compact, horizontal exhausting-gas hole is provided with the outer upper mold, the exhausting-gas hole connects the transmission section and the external world.
2. powder metallurgy pressing die according to claim 1, it is characterised in that：The exhausting-gas hole is in the outer upper mold
It is uniformly distributed on excircle.
3. powder metallurgy pressing die according to claim 1 or 2, it is characterised in that：The quantity of the lower die is more than 2
It is a.
4. powder metallurgy pressing die according to claim 1 or 2, it is characterised in that：The pressed compact is vacuum pump rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721035206.3U CN207358160U (en) | 2017-08-18 | 2017-08-18 | Powder metallurgy pressing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721035206.3U CN207358160U (en) | 2017-08-18 | 2017-08-18 | Powder metallurgy pressing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207358160U true CN207358160U (en) | 2018-05-15 |
Family
ID=62422118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721035206.3U Active CN207358160U (en) | 2017-08-18 | 2017-08-18 | Powder metallurgy pressing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207358160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113333745A (en) * | 2021-05-18 | 2021-09-03 | 中国工程物理研究院材料研究所 | Powder compacting die with atmosphere protection function and method |
-
2017
- 2017-08-18 CN CN201721035206.3U patent/CN207358160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113333745A (en) * | 2021-05-18 | 2021-09-03 | 中国工程物理研究院材料研究所 | Powder compacting die with atmosphere protection function and method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |