CN202147007U - Press die and internal rotor pressed thereby - Google Patents
Press die and internal rotor pressed thereby Download PDFInfo
- Publication number
- CN202147007U CN202147007U CN201120025830U CN201120025830U CN202147007U CN 202147007 U CN202147007 U CN 202147007U CN 201120025830 U CN201120025830 U CN 201120025830U CN 201120025830 U CN201120025830 U CN 201120025830U CN 202147007 U CN202147007 U CN 202147007U
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- press die
- internal rotor
- punch
- utility
- model
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Abstract
The utility model discloses a press die, comprising an upper punch, a female die, a lower punch and a core rod which are arranged in order from up to down. The lower punch is sleeved on the core rod. Each of two ends of the internal peripheral diameter of the upper end of the lower punch is provided with a key tooth, respectively. The press die of the utility model has the beneficial effects that raw materials are saved and the production cost is reduced; products prepared thereby are not prone to destruction of the tooth shape, and thereby are more beautiful in appearance and higher in performance; manpower and material resources are saved during the assembling process; and during the operation, the oil flow amount is more stable and more sufficient, thereby enhancing the product quality and the operating efficiency.
Description
Technical field
The utility model relates to a kind of internal rotor of band keyway of press die and compacting thereof of powder metallurgy internal rotor.
Background technology
At present, traditional internal rotor is not to be with keyway.In order to satisfy its assembling needs, need on perpendicular to the direction of internal rotor endoporus, to bore a through hole with drilling machine, this hole can't be suppressed with powder metallurgy, so when assembling, all will punch after product is accomplished.This type of technology has not only been wasted great deal of raw materials, and has increased manpower and materials.Boring has not only destroyed the original profile of tooth of product, and when punching with drilling machine, gets into steel part from ironware and make drill bit impaired easily, has increased the manufacturing procedure and the production cost of product, influences production efficiency.
Summary of the invention
The technical problem that the utility model will solve is that existing internal rotor keyway processing expends raw material, production efficiency is low and product stability is not high.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of press die; Comprise the upper punch, former, bottom punch and the plug that are provided with in order from top to bottom, bottom punch is enclosed within on the plug, and a key tooth is respectively established at the two ends of the inner periphery diameter of bottom punch upper end.
The key tooth is set on bottom punch, directly has two keyways after can making formed product, saved great deal of raw materials; Keyway on the internal rotor has mainly played the effect of fixator pins; During use; Columniform pin lies in a horizontal plane in two keyways, and therefore, the length of keyway, width all determine according to the size of pin; Be as the criterion can put down pin; The utility model internal rotor through compression moulding, fire, after the shaping, the roughness of product can reach 0.8um, keyway need not to carry out fine finishining.
The beneficial effect of the utility model is: save raw material, reduce production costs; The product of producing can not destroy profile of tooth, has increased the aesthetics and the performance of product; Assembling time human-saving and material resources; Make during running that the flow of oil is fully stable more, improved the quality and the operating efficiency of product.
Description of drawings
Fig. 1 is the utility model inner rotor core sketch map;
Fig. 2 be Fig. 1 A-A to cutaway view;
Fig. 3 is the utility model press structure sketch map;
Assembling sketch map when Fig. 4 is the use of the utility model product.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
Shown in Fig. 1-2, be symmetrically arranged with two keyways 4 on the inwall on internal rotor endoporus top, keyway 4 communicates with endoporus.
As shown in Figure 3, said press adopts existing press with floating type former; During compacting, feed box is sent into iron powder 5 to fill in the former 2 expires, and during compacting, upper punch 1 is descending, and back pressurization in the entering former 2 makes former 2 downward synchronously unsteady, makes iron powder 5 and bottom punch 3 compaction mouldings; Upper punch 1 backhaul, former 2 is drop-down, and plug 6 is descending, the demoulding; After the pressed compact moulding, the key tooth 9 on the bottom punch 3 makes on the inwall on product endoporus top and is symmetrically arranged with two keyways 4.
As shown in Figure 4, axle 8 upper ends are provided with through hole, and pin 7 inserts in the through holes and interference fit with it; Axle 8 that assembles and pin 7 are put into the endoporus of internal rotor, be tight fit between endoporus and the axle 8, and after pin 7 and spools 8 was put into internal rotor, pin 7 was fixed in two keyways, has reached and the same effect of original technology through hole.
Employing is with the press of floating type former; Help improving original filling condition; Obtain and the suitable effect of mobile dress powder,, still make the density of pressed compact different parts be tending towards even although the powder of different parts has successively; Be that former floats synchronously downwards and can guarantee that upper, middle and lower density differs and be not very big, thereby avoided causing occurring easily crackle because of density differs greatly.
Claims (2)
1. a press die comprises the upper punch, former, bottom punch and the plug that are provided with in order from top to bottom, and bottom punch is enclosed within on the plug, it is characterized in that, a key tooth is respectively established at the two ends of the inner periphery diameter of bottom punch upper end.
2. the internal rotor of a press die compacting is characterized in that be symmetrically arranged with two keyways on the inwall on internal rotor endoporus top, said keyway communicates with endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120025830U CN202147007U (en) | 2011-01-26 | 2011-01-26 | Press die and internal rotor pressed thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120025830U CN202147007U (en) | 2011-01-26 | 2011-01-26 | Press die and internal rotor pressed thereby |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202147007U true CN202147007U (en) | 2012-02-22 |
Family
ID=45588082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120025830U Expired - Fee Related CN202147007U (en) | 2011-01-26 | 2011-01-26 | Press die and internal rotor pressed thereby |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202147007U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728760A (en) * | 2012-07-03 | 2012-10-17 | 北京有色金属研究总院 | Aluminum alloy rotor forming die and method thereof |
| CN103624254A (en) * | 2013-11-01 | 2014-03-12 | 横店集团东磁股份有限公司 | Thin-wall type powder metallurgy forming die and method |
| CN104368812A (en) * | 2014-11-28 | 2015-02-25 | 中核(天津)科技发展有限公司 | Pressing die for bonded neodymium-iron-boron magnetic body |
| CN109796123A (en) * | 2018-12-28 | 2019-05-24 | 西安赛尔电子材料科技有限公司 | A kind of glass powder molding die |
-
2011
- 2011-01-26 CN CN201120025830U patent/CN202147007U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728760A (en) * | 2012-07-03 | 2012-10-17 | 北京有色金属研究总院 | Aluminum alloy rotor forming die and method thereof |
| CN102728760B (en) * | 2012-07-03 | 2014-08-13 | 北京有色金属研究总院 | Aluminum alloy rotor forming die and method thereof |
| CN103624254A (en) * | 2013-11-01 | 2014-03-12 | 横店集团东磁股份有限公司 | Thin-wall type powder metallurgy forming die and method |
| CN104368812A (en) * | 2014-11-28 | 2015-02-25 | 中核(天津)科技发展有限公司 | Pressing die for bonded neodymium-iron-boron magnetic body |
| CN109796123A (en) * | 2018-12-28 | 2019-05-24 | 西安赛尔电子材料科技有限公司 | A kind of glass powder molding die |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120222 Termination date: 20170126 |