CN208906305U - A kind of powder metallurgy die reducing local density - Google Patents
A kind of powder metallurgy die reducing local density Download PDFInfo
- Publication number
- CN208906305U CN208906305U CN201821546871.3U CN201821546871U CN208906305U CN 208906305 U CN208906305 U CN 208906305U CN 201821546871 U CN201821546871 U CN 201821546871U CN 208906305 U CN208906305 U CN 208906305U
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- CN
- China
- Prior art keywords
- formed punch
- concave part
- type chamber
- powder metallurgy
- local density
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Abstract
The utility model provides a kind of powder metallurgy die that can reduce local density, belong to powder metallurgy die technical field, including formed punch and middle mould, the middle part of middle mould is equipped with a type chamber, formed punch is matched with type chamber, and nose of punch is equipped with several lug bosses, middle mould is equipped with several concave parts for matching and being located at type chamber periphery with lug boss, the intracavitary powder of formed punch punched, a side opening of the concave part towards lug boss, the opening of concave part is connected with type chamber, and the bottom of concave part includes a horizontal plane and towards the inclined surface of type cavity dumping, the utility model structure is simple, reduce mold and punching head cracking phenomena reduces local density.
Description
Technical field
The utility model belongs to powder metallurgy die technical field, and in particular to one kind can reduce the powder smelting of local density
Golden mold.
Background technique
Powder metallurgic method is compressed by the raw material powder for the inner cavity being fed in metal mold by formed punch, thus forming and mesh
The approximate powder compact of part shape is marked, the powder compact is sintered and obtains part, which is used as being capable of mass production essence
The method of the part of close and complicated shape and it is known, powder metallurgy mainly be suitable for automobile industry, equipment manufacture,
The spare and accessory parts in the fields such as metal industry, aerospace, war industry, instrument and meter, hardware tool, electronic appliance are produced and are ground
To study carefully, product includes bearing, gear, hard alloy cutter, mold, friction goods etc., in military enterprise, heavy weaponry
Such as armor-piercing bullet, torpedo etc., the brake assemblages such as aircraft tank are both needed to produce using PM technique, and in the life of powder metallurgy product
During production, for the compacting of the product of surface irregularity, since punch shape variation is bigger, to make
At the uneven of pressure, the local high density of product depressed section easy to form, high stress, the part of product convex portion is low close
Degree, low stress cause mold and punching head to crack, make production disruption, and cost is substantially increased.
Therefore it is badly in need of that a kind of structure is simple, reduces the powder metallurgy mould for reducing local density of mold and punching head cracking phenomena
Tool.
Utility model content
The purpose of the utility model is to provide the powder metallurgy dies that one kind can reduce local density, and structure is simple, is used for
Reduce mold and punching head cracking phenomena.
The utility model provides the following technical solution:
The middle part of a kind of powder metallurgy die reducing local density, including formed punch and middle mould, middle mould is equipped with a type chamber,
Formed punch is matched with type chamber, and nose of punch is equipped with several lug bosses, and middle mould matches and is located at lug boss equipped with several
The concave part on type chamber periphery, the intracavitary powder of formed punch punched, a side opening of the concave part towards lug boss, the opening of concave part
Place is connected with type chamber, and the bottom of concave part includes a horizontal plane and towards the inclined surface of type cavity dumping.
Preferably, the angular range between inclined surface and horizontal plane is 0-60 °.
Preferably, the angular range between inclined surface and horizontal plane is 30 °.
Preferably, groove cross section is sector, and concave part is less than concave part by the side cross-sectional width of plesiotype chamber
The cross-sectional width of remote release chamber side allows powder more suitable when facing away from the concave part side extruding of type chamber
Freely.
Preferably, formed punch include formed punch ontology and positioned at be located at formed punch ontology bottom end bottom plate, bottom plate be equipped with it is several
Socket cap is buffered, buffering socket cap is pressed together on the end face of middle mould, allows to play in formed punch punching course and share formed punch
Effect of the end for the stamping press of bottom further decreases a possibility that formed punch cracks.
Preferably, the depth capacity of the concave part is 7mm.
The beneficial effects of the utility model are:, curvilinear motion bigger position, by middle mould high for product density
Upper design concave part overflows the scheme of powder, completely fills out when filling out powder, top be it is flat, when formed punch enters mold, powder can be with
The curve shape of formed punch, powder along concave part extrusion in mould, reduce the difference of product density, be lower than when formed punch enters
When the bottom position of concave part, there is no powder spillings, continue, and complete to suppress, and then by middle mould and formed punch and pressed powder
Product is detached from, and pressed preliminary product model can be obtained, and since the bottom of concave part is that horizontal plane connects inclined surface
Form, therefore may be implemented overflow powder overflow when it is more smooth.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of middle mould；
Fig. 2 is the structural schematic diagram of formed punch；
Fig. 3 is the cross-sectional view of concave part；
Label in figure: 10 be formed punch, and 20 be middle mould, and 30 be type chamber, and 40 be lug boss, and 50 be concave part, and 60 be level
Face, 70 be inclined surface, and 80 be formed punch ontology, and 90 be bottom plate, and 100 be buffering socket cap.
Specific embodiment
The powder metallurgy die of local density can be reduced to one kind shown in Fig. 3 in conjunction with Fig. 1, in the present embodiment, including
The middle part of formed punch 10 and middle mould 20, middle mould 20 is equipped with a type chamber 30, and formed punch 10 is matched with type chamber 30, and 10 end of formed punch is equipped with
Several lug bosses 40, middle mould 20 are equipped with several concave parts 50 for matching and being located at 30 periphery of type chamber with lug boss 40, formed punch
Powder in 10 punched chambers 30, a side opening of the concave part 50 towards lug boss 40, the opening and type chamber 30 of concave part 50
Be connected, and the bottom of concave part 50 includes a horizontal plane 60 and towards the inclined inclined surface 70 of type chamber 30, inclined surface 70 with
Angular range between horizontal plane 60 is that A is 30 °, and 50 cross section of concave part is sector, and concave part 50 depends on the one of plesiotype chamber 30
Side cross-sectional width is less than the cross-sectional width of remote 30 side of release chamber of concave part 50, so that powder faces away from the recessed of type chamber 30
It 50 side of groove portion can be more smooth when squeezing.
The powder metallurgy die of local density, in the present embodiment, formed punch can be reduced to one kind shown in Fig. 3 in conjunction with Fig. 1
10 including formed punch ontology 80 and positioned at the bottom plate 90 for being located at formed punch ontology bottom end, and bottom plate 90 is buffered equipped with several elastic rubbers
Socket cap 100, buffering socket cap 100 are pressed together on the end face of middle mould 20, allow to play and share in formed punch punching course
Effect of the nose of punch for the stamping press of bottom further decreases a possibility that formed punch cracks.
The beneficial effects of the utility model are:, curvilinear motion bigger position, by middle mould high for product density
Upper design concave part overflows the scheme of powder, completely fills out when filling out powder, top be it is flat, when formed punch enters mold, powder can be with
The curve shape of formed punch, powder along concave part extrusion in mould, reduce the difference of product density, be lower than when formed punch enters
When the bottom position of concave part, there is no powder spillings, continue, and complete to suppress, and then by middle mould and formed punch and pressed powder
Product is detached from, and pressed preliminary product model can be obtained, and since the bottom of concave part is that horizontal plane connects inclined surface
Form, therefore may be implemented overflow powder overflow when it is more smooth.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, although ginseng
The utility model is described in detail according to previous embodiment, it for those skilled in the art, still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.It is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in practical
Within novel protection scope.
Claims (6)
1. the powder metallurgy die that one kind can reduce local density, which is characterized in that including formed punch and middle mould, in the middle mould
Portion is equipped with a type chamber, and the formed punch matches with the type chamber, and the nose of punch is equipped with several lug bosses, on the middle mould
Equipped with several concave parts for matching and being located at type chamber periphery with the lug boss, type described in the formed punch punching press is intracavitary
Powder, towards a side opening of the lug boss, the opening of the concave part is connected the concave part with the type chamber, and
The bottom of the concave part includes a horizontal plane and towards the inclined surface of the type cavity dumping.
2. the powder metallurgy die that one kind according to claim 1 can reduce local density, which is characterized in that the inclination
Angular range between face and the horizontal plane is 0-60 °.
3. the powder metallurgy die that one kind according to claim 2 can reduce local density, which is characterized in that the inclination
Angular range between face and the horizontal plane is 30 °.
4. the powder metallurgy die that one kind according to claim 1 can reduce local density, which is characterized in that the groove
Cross section is sector, and the concave part is less than the concave part far from described close to the side cross-sectional width of the type chamber
The cross-sectional width of type chamber side.
5. the powder metallurgy die that one kind according to claim 1 can reduce local density, which is characterized in that the formed punch
Including formed punch ontology and positioned at the bottom plate for being located at formed punch ontology bottom end, the bottom plate is equipped with several buffering socket caps,
The buffering socket cap is pressed together on the end face of the middle mould.
6. the powder metallurgy die that one kind according to claim 1 can reduce local density, which is characterized in that the groove
The depth capacity in portion is 7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821546871.3U CN208906305U (en) | 2018-09-21 | 2018-09-21 | A kind of powder metallurgy die reducing local density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821546871.3U CN208906305U (en) | 2018-09-21 | 2018-09-21 | A kind of powder metallurgy die reducing local density |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208906305U true CN208906305U (en) | 2019-05-28 |
Family
ID=66613763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821546871.3U Expired - Fee Related CN208906305U (en) | 2018-09-21 | 2018-09-21 | A kind of powder metallurgy die reducing local density |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208906305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787191A (en) * | 2021-09-26 | 2021-12-14 | 开封贝斯科超硬材料有限公司 | Machining process of CBN cutter with groove |
-
2018
- 2018-09-21 CN CN201821546871.3U patent/CN208906305U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787191A (en) * | 2021-09-26 | 2021-12-14 | 开封贝斯科超硬材料有限公司 | Machining process of CBN cutter with groove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |