CN202667657U - Powder metallurgy molding die for rotor - Google Patents
Powder metallurgy molding die for rotor Download PDFInfo
- Publication number
- CN202667657U CN202667657U CN 201220232566 CN201220232566U CN202667657U CN 202667657 U CN202667657 U CN 202667657U CN 201220232566 CN201220232566 CN 201220232566 CN 201220232566 U CN201220232566 U CN 201220232566U CN 202667657 U CN202667657 U CN 202667657U
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- CN
- China
- Prior art keywords
- molding die
- undershoots
- rotor
- powder metallurgy
- undershoot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a power metallurgy molding die for a rotor and the molding die belongs to the technology filed of a molding die for powder metallurgy. The technical problem to be solved is how to provide a power metallurgy molding die for a rotor, wherein the molding die is simple in structure and the long in service life. The adopted technical solution is characterized in that a first lower punch, second lower punches, a female mould and a core rod are arranged below an upper punch; the second lower punches and the first lower punch are arranged between the female mound and the core rod, the multiple second lower punches are inserted into the blade grooves of the circle center through hole of the first lower punch, and the inner wall of the circle center through hole of the first lower punch are provided with trapezoid bosses which are arranged between every two adjacent second lower punches. The molding die is mainly used to mold a rotor in a powder metallurgy process.
Description
Technical field
A kind of powder metallurgy rotor mould of the utility model belongs to the forming die for powder metallurgy technical field.
Background technology
The rotor slot very thin thickness of blade pump rotor, generally between the 1-2 millimeter, if adopt the way of machining, be difficult to five equilibrium that blade groove is done even, and interchangeability is very poor, by using powder metallurgical technique, can make the fine and uniform part of five equilibrium of interchangeability, but in the actual powder metallurgical production, because blade groove is made independent drift (two undershoots), be easy at work fracture, die life is very low, and this causes this scheme use to be very restricted.Therefore be necessary to solve by improving mould structure this problem of powder metallurgy forming difficulty.
The utility model content
The utility model overcomes the deficiency that prior art exists, and technical problem to be solved has provided a kind of simple in structure, powder metallurgy rotor mould that die life is long.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of powder metallurgy rotor mould, comprise: upper punch, a undershoot, two undershoots, former and plug, the below of described upper punch is provided with a undershoot, two undershoots, former and plug, be provided with two undershoots and a undershoot between described former and the plug, described a plurality of two undershoots are inserted in the blade groove of a undershoot center of circle through hole, are provided with trapezoid boss on the undershoot center of circle through-hole wall between described adjacent two 2 undershoots.
Be matched in clearance between a described undershoot and two undershoots.
Be interference fit between described two undershoots and the former.
The beneficial effect that the utility model compared with prior art has is: the utility model adopts powder metallurgy special C-shaped mould bases, the pulling-down type stripping means, can one-shot forming with the rotor class part of blade groove, and the utility model is simple in structure, effectively reduce manufacturing cost, improve production efficiency, saved material.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the utility model mould.
Fig. 2 is the scheme of installation of the utility model mould.
Among the figure: 1 is that upper punch 1,2 is a undershoot, and 3 is two undershoots, and 4 is former, and 5 is plug.
The specific embodiment
As shown in Figure 1, a kind of powder metallurgy rotor mould, comprise: upper punch 1, a undershoot 2, two undershoots 3, former 4 and plug 5, the below of described upper punch 1 is provided with a undershoot 2, two undershoots 3, former 4 and plug 5, be provided with two undershoots 3 and a undershoot 2 between described former 4 and the plug 5, described a plurality of two undershoots 3 are inserted in the blade groove of a undershoot 2 center of circle through holes, are provided with trapezoid boss on a undershoot 2 center of circle through-hole walls between described adjacent two 2 undershoots 3.
Be matched in clearance between a described undershoot 2 and two undershoots 3.
Be interference fit between described two undershoots 3 and the former 4.
The utility model powder metallurgy forming mould is installed on the C pattern frame.
The course of work of the present utility model is: when specifically using, a kind of planet carrier base plate of the utility model powder metallurgy forming die molding process is divided into powder filling, compacting, three rank of the demoulding.When powder is filled, carry out powder filling according to compression ratio, the powder feeding footwear are shaken 3-5 time on die cavity top according to default program, to guarantee closely knit being filled with in the die cavity of powder.During compacting, after the operation program of press started, upper punch 1 contacted the beginning compressing powder with powder, moved down after a undershoot 2 is under pressure, and two undershoots 3 keep relative motionless with former 4 simultaneously, until powder pressing forming.During the demoulding, former 4 is left behind, and adopts the mode of the protection demoulding, and upper punch 1 contacts with the section of part all the time, prevents because elastic after effect causes latent crack occurring in the position that part section changes.After former 4, a undershoot 2, two undershoots 3 were deviate from fully, upper punch 1 was return, and plug 5 is left behind, and finishes the demoulding.Can utilize the powder metallurgical technique one-shot forming to go out such rotor according to the compacting tool set design that the utility model adopts, through checking and checking, die life significantly improves, and production efficiency is improved.
The above has done detailed description to embodiment of the present utility model by reference to the accompanying drawings, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skills possess, can also under the prerequisite that does not break away from the utility model aim, make various variations.
Claims (3)
1. powder metallurgy rotor mould, comprise: upper punch (1), one undershoot (2), two undershoots (3), former (4) and plug (5), the below of described upper punch (1) is provided with a undershoot (2), two undershoots (3), former (4) and plug (5), it is characterized in that: be provided with two undershoots (3) and a undershoot (2) between described former (4) and the plug (5), described a plurality of two undershoots (3) are inserted in the blade groove of a undershoot (2) center of circle through hole, are provided with trapezoid boss on a undershoot (2) center of circle through-hole wall between described adjacent two 2 undershoots (3).
2. a kind of powder metallurgy rotor mould according to claim 1 is characterized in that: be matched in clearance between a described undershoot (2) and two undershoots (3).
3. a kind of powder metallurgy rotor mould according to claim 1 and 2 is characterized in that: be interference fit between described two undershoots (3) and the former (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220232566 CN202667657U (en) | 2012-05-23 | 2012-05-23 | Powder metallurgy molding die for rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220232566 CN202667657U (en) | 2012-05-23 | 2012-05-23 | Powder metallurgy molding die for rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202667657U true CN202667657U (en) | 2013-01-16 |
Family
ID=47488590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220232566 Expired - Fee Related CN202667657U (en) | 2012-05-23 | 2012-05-23 | Powder metallurgy molding die for rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202667657U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170626A (en) * | 2013-04-16 | 2013-06-26 | 苏州莱特复合材料有限公司 | Rotor powder-metallurgy mold structure |
| CN106180703A (en) * | 2016-08-29 | 2016-12-07 | 海安县鹰球粉末冶金有限公司 | Become displacement oil pump rotor shaping female mold |
| CN115255361A (en) * | 2022-06-22 | 2022-11-01 | 东睦新材料集团股份有限公司 | Powder metallurgy forming die and forming method of magnetic conduction block |
-
2012
- 2012-05-23 CN CN 201220232566 patent/CN202667657U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170626A (en) * | 2013-04-16 | 2013-06-26 | 苏州莱特复合材料有限公司 | Rotor powder-metallurgy mold structure |
| CN106180703A (en) * | 2016-08-29 | 2016-12-07 | 海安县鹰球粉末冶金有限公司 | Become displacement oil pump rotor shaping female mold |
| CN115255361A (en) * | 2022-06-22 | 2022-11-01 | 东睦新材料集团股份有限公司 | Powder metallurgy forming die and forming method of magnetic conduction block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20160523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |