CN215237820U - Integrated structure of forming punch for powder metallurgy blade rotor - Google Patents
Integrated structure of forming punch for powder metallurgy blade rotor Download PDFInfo
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- CN215237820U CN215237820U CN202023336114.3U CN202023336114U CN215237820U CN 215237820 U CN215237820 U CN 215237820U CN 202023336114 U CN202023336114 U CN 202023336114U CN 215237820 U CN215237820 U CN 215237820U
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- punch
- female die
- punches
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- blade rotor
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Abstract
The utility model provides a powder metallurgy blade rotor class drift integral type structure that takes shape, includes bed die and drift, its characterized in that: the female die and the punch are of an integral structure, and a plurality of punches are machined and formed on the inner wall of the cavity of the female die at uniform intervals along the circumference. The original 7 vulnerable punches are eliminated, the 7 punches are directly processed and formed on the inner wall of the cavity of the female die, the length of the punches is shortened, and the problems that the punches are easy to break and the die is wasted when the blade rotor is formed are solved. The utility model has the advantages of simple and reasonable structure, processing is convenient, the shaping is effectual, has not only reduced the expense of mould processing, has practiced thrift the cost, has improved the life of mould, has also improved production efficiency simultaneously.
Description
Technical Field
The utility model belongs to the technical field of powder metallurgy makes, a mould is related to, especially, relate to a powder metallurgy blade rotor class drift integral type structure that takes shape.
Background
Powder metallurgy is a process technology for manufacturing metal materials, composites and various types of products by using metal or metal powder as a raw material through forming and sintering, is widely applied to various fields, has unique chemical composition and mechanical and physical properties, cannot be obtained by a traditional fusion casting method, and can be used for manufacturing various powder metallurgy parts such as automobiles, motorcycles, textile machinery, electric tools, hardware tools, electric appliances and the like.
The forming die is a key device in the production process of powder metallurgy products, iron powder for powder metallurgy is formed in the forming die by pressure, and the size of a formed piece is guaranteed by the size of a finished piece. Therefore, in the machining process of the blade rotor type part, the forming punch is an important tool for ensuring the precision of the product.
In the design of the conventional powder metallurgy forming punch, the forming punch is generally thin and long, and the punch is easy to break, so that the punch is scrapped without being made in a large quantity, the waste of a die is caused, and the working efficiency is reduced.
Through inspection, the existing chinese patent No. 201621090126.3 "a notch structure of a powder metallurgy blade rotor type forming die" includes: the inner wall of a forming inner cavity of the female die body is circumferentially provided with a U-shaped groove corresponding to the outer contour of the notch part of the rotor; the side surface of the lower punch is provided with a slot corresponding to the notch part of the rotor along the circumference, and an arc notch for avoiding the generation of burrs at the notch part of the rotor is formed at the joint of the outer edge of the opening of the slot and the U-shaped groove of the female die body; the groove piece is of a structure matched with the U-shaped groove of the female die body and the lower punching slot, and an arc notch structure corresponding to the lower punching arc notch is formed at the lower side part of the groove piece. As can be seen from the drawings of the patent, the slot sheets are slender and easy to break, and the processing is complex, so that further improvement is needed.
Disclosure of Invention
The utility model aims to solve the technical problem that a powder metallurgy blade rotor class forming punch integral type structure that simple structure is reasonable, the shaping is effectual is provided to foretell technical current situation to the drift fracture when solving the blade rotor and taking shape leads to the problem of mould life-span weak point.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a powder metallurgy blade rotor class drift integral type structure that takes shape, includes bed die and drift, its characterized in that: the female die and the punch are of an integral structure, and a plurality of punches are machined and formed on the inner wall of the cavity of the female die at uniform intervals along the circumference.
As an improvement, the number of the punches is 7, and the 7 punches are uniformly formed on the inner wall of the cavity of the female die at intervals and correspond to the notches of the rotor.
And the sizes of the 7 punches are consistent, and the front end surface and the rear end surface of each punch are flush with the front end surface and the rear end surface of the female die.
As an improvement, screw holes are formed in the front side and the rear side of the female die, and steps convenient to assemble are formed on the female die.
Finally, the length of the punch is less than 1/2 for the length of the punch before modification.
Compared with the prior art, the utility model has the advantages of: the original 7 vulnerable punches are eliminated, the 7 punches are directly processed and formed on the inner wall of the cavity of the female die, the length of the punches is shortened, and the problems that the punches are easy to break and the die is wasted when the blade rotor is formed are solved. The utility model has the advantages of simple and reasonable structure, processing is convenient, the shaping is effectual, has not only reduced the expense of mould processing, has practiced thrift the cost, has improved the life of mould, has also improved production efficiency simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural view of a modified front punch;
FIG. 4 is a schematic view of a modified front die in cooperation with a punch;
fig. 5 is an enlarged view of a portion of the punch in the area a of fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, 2 and 5, the integrated structure of the forming punch of the powder metallurgy blade rotor comprises a female die 1 and punches 2, wherein the female die 1 and the punches 2 are of an integrated structure, the inner wall of a cavity 11 of the female die 1 is machined and formed with 7 punches 2 at uniform intervals along the circumference, the 7 punches 2 are consistent in size and shortened in length, the front end face and the rear end face of each punch 2 are flush with the front end face and the rear end face of the female die 1, and the 7 punches 2 are formed on the inner wall of the cavity 11 of the female die 1 at uniform intervals and correspond to notches of a rotor. Screw holes 12 are formed in the front side and the rear side of the female die 1, and a step 13 convenient to assemble is formed on the female die 1.
As shown in fig. 3 and 4, in order to provide a split female die 10 and a punch 20 before modification, it can be seen that the punch 20 before modification is thin and long, and the end of the punch 20 is provided with a narrower step 201; the inner wall of the cavity of the female die 10 is circumferentially provided with a U-shaped groove corresponding to the outer contour of the notch of the rotor.
Compared with the prior art, the punch 2 of the embodiment is greatly shortened, the length of the punch is less than 1/2 of the length of the punch before improvement, and the punch 2 and the die 1 are in an integrated structure, so that the strength of the punch 2 is greatly increased, and the occurrence of fracture is avoided.
The embodiment has good using effect through implementation and is convenient to manufacture, and the problem that the punch breaks when the blade rotor is formed is well solved. After the integrated female die structure is adopted, the size of a formed product can meet the requirement, the service life of the die is prolonged, the die processing cost is greatly reduced, and the production efficiency is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a powder metallurgy blade rotor class drift integral type structure that takes shape, includes bed die and drift, its characterized in that: the female die and the punch are of an integral structure, and a plurality of punches are machined and formed on the inner wall of the cavity of the female die at uniform intervals along the circumference.
2. The powder metallurgy blade rotor type forming punch integrated structure as claimed in claim 1, wherein: the number of the punch heads is 7, and the 7 punch heads are formed on the inner wall of the cavity of the female die at uniform intervals and correspond to the notches of the rotor.
3. The powder metallurgy blade rotor type forming punch integrated structure as claimed in claim 2, wherein: the sizes of the 7 punches are consistent, and the front end face and the rear end face of each punch are flush with the front end face and the rear end face of the female die.
4. The powder metallurgy blade rotor-type forming punch integrated structure as claimed in claim 1, 2 or 3, wherein: screw holes are formed in the front side and the rear side of the female die, and steps convenient to assemble are formed on the female die.
5. The powder metallurgy blade rotor type forming punch integrated structure as claimed in claim 1, wherein: the length of the punch is less than 1/2 of the length of the punch before modification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023336114.3U CN215237820U (en) | 2020-12-30 | 2020-12-30 | Integrated structure of forming punch for powder metallurgy blade rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023336114.3U CN215237820U (en) | 2020-12-30 | 2020-12-30 | Integrated structure of forming punch for powder metallurgy blade rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215237820U true CN215237820U (en) | 2021-12-21 |
Family
ID=79489189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023336114.3U Active CN215237820U (en) | 2020-12-30 | 2020-12-30 | Integrated structure of forming punch for powder metallurgy blade rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215237820U (en) |
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2020
- 2020-12-30 CN CN202023336114.3U patent/CN215237820U/en active Active
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