CN204209123U - A kind of powder metallurgy rotor class finishing female mould structure - Google Patents
A kind of powder metallurgy rotor class finishing female mould structure Download PDFInfo
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- CN204209123U CN204209123U CN201420614099.XU CN201420614099U CN204209123U CN 204209123 U CN204209123 U CN 204209123U CN 201420614099 U CN201420614099 U CN 201420614099U CN 204209123 U CN204209123 U CN 204209123U
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- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
一种粉末冶金转子类精整阴模结构，包括阴模本体，阴模本体的中部设有横截面为齿形的型腔，其特征在于：所述型腔内、齿形的端部向内凹设有用于增加转子齿形边缘密度的内凹部；所述内凹部的横截面呈梯形，内凹部与齿形端部的距离d与齿形外径D之间的关系为d＝D×0.005。在阴模型腔的齿形的边缘处向内凹进一小面积，使得在精整时，产品在该部分的局部密度增加，来达到增加该部分强度的功用。本实用新型结构简单合理，提高了转子在齿形边缘处的密度、提高了该部分的强度、提高了抗耐磨性以及生产过程中的稳定性，而且还提高了生产效率，降低了成本，为生产高精度的转子提供了可靠的技术保证。
A powder metallurgy rotor type finishing female mold structure, including a female mold body, the middle part of the female mold body is provided with a cavity with a tooth-shaped cross section, and it is characterized in that: in the cavity, the end of the tooth shape faces inward Concave is provided with an inner concave part for increasing the edge density of the rotor tooth shape; the cross section of the inner concave part is trapezoidal, and the relationship between the distance d between the inner concave part and the end of the tooth shape and the outer diameter D of the tooth shape is d=D×0.005 . A small area is recessed inward at the edge of the tooth shape of the female mold cavity, so that the local density of the product in this part increases during finishing, so as to achieve the function of increasing the strength of this part. The utility model has a simple and reasonable structure, improves the density of the rotor at the edge of the tooth shape, improves the strength of this part, improves the wear resistance and the stability in the production process, and also improves the production efficiency and reduces the cost. It provides a reliable technical guarantee for the production of high-precision rotors.
Description
技术领域technical field
本实用新型属于粉末冶金制造技术领域，涉及一种模具，尤其涉及一种粉末冶金转子类精整阴模结构The utility model belongs to the technical field of powder metallurgy manufacturing, and relates to a mold, in particular to a powder metallurgy rotor type finishing female mold structure
背景技术Background technique
粉末冶金是用金属或用金属粉末作为原料，经过成形和烧结，制造金属材料、复合以及各种类型制品的工艺技术，被广泛应用于各个领域，由于粉末冶金具有独特的化学组成和机械、物理性能，是传统的熔铸方法无法获得的，可用于制造汽车、摩托车、纺织机械、电动工具、五金工具、电器等各种粉末冶金零件。Powder metallurgy is a process technology that uses metal or metal powder as raw material, after forming and sintering, to manufacture metal materials, composites and various types of products. It is widely used in various fields. Due to its unique chemical composition and mechanical and physical The performance cannot be obtained by traditional melting and casting methods, and it can be used to manufacture various powder metallurgy parts such as automobiles, motorcycles, textile machinery, electric tools, hardware tools, and electrical appliances.
模具是粉末冶金制品生产的关键工具，粉末冶金成型后的模具在烧结后往往需要进行精整处理，精整是指在室温下，将烧结后的粉末冶金制品在模具中再压一次，以矫正制品在烧结中的变形，提高制品的尺寸精度。因此，在转子类零件的加工过程中，精整阴模是保证制品精度的重要工具。The mold is the key tool for the production of powder metallurgy products. The mold after powder metallurgy molding often needs finishing treatment after sintering. Finishing refers to pressing the sintered powder metallurgy product in the mold again at room temperature to correct The deformation of the product during sintering improves the dimensional accuracy of the product. Therefore, in the processing of rotor parts, the finishing die is an important tool to ensure the accuracy of the product.
在常规的粉末冶金精整阴模设计中，精整阴模和成型阴模曲线一致，那么在齿形边缘处的密度较低，比较疏松，在后续机加工或后续产品使用过程中齿部边缘容易产生剥落现象，某些可能需要返工，甚至报废。造成了材料的浪费，且降低了工作效率。In the conventional powder metallurgy finishing die design, the finishing die and the forming die curve are consistent, so the density at the edge of the tooth shape is relatively low and loose, and the edge of the tooth portion will be loose during subsequent machining or subsequent product use. It is prone to peeling, and some may need to be reworked or even scrapped. Caused the waste of material, and reduced working efficiency.
发明内容Contents of the invention
本实用新型所要解决的技术问题是针对上述的技术现状而提供一种结构简单合理、精整效果好的粉末冶金转子类精整阴模结构，以解决转子在齿形边缘处的密度疏松问题。The technical problem to be solved by the utility model is to provide a powder metallurgy rotor-type finishing female mold structure with a simple and reasonable structure and good finishing effect in view of the above-mentioned technical status, so as to solve the problem of loose density of the rotor at the tooth edge.
本实用新型解决上述技术问题所采用的技术方案为：一种粉末冶金转子类精整阴模结构，包括阴模本体，阴模本体的中部设有横截面为齿形的型腔，其特征在于：所述型腔内、齿形的端部向内凹设有用于增加转子齿形边缘密度的内凹部。The technical solution adopted by the utility model to solve the above technical problems is: a powder metallurgy rotor type finishing female mold structure, including the female mold body, the middle part of the female mold body is provided with a tooth-shaped cavity in cross section, which is characterized in that : In the cavity, the end of the tooth shape is concavely provided with an inner concave part for increasing the edge density of the rotor tooth shape.
作为改进，所述内凹部的横截面呈梯形，内凹部与齿形端部的距离d与齿形外径D之间的关系为d＝D×0.005。As an improvement, the cross section of the inner concave portion is trapezoidal, and the relationship between the distance d between the inner concave portion and the end of the tooth shape and the outer diameter D of the tooth shape is d=D×0.005.
与现有技术相比，本实用新型的优点在于：在阴模型腔的齿形的边缘处向内凹进一小面积，使得在精整时，产品在该部分的局部密度增加，来达到增加该部分强度的功用。本实用新型结构简单合理，提高了转子在齿形边缘处的密度、提高了该部分的强度、提高了抗耐磨性以及生产过程中的稳定性，而且还提高了生产效率，降低了成本，为生产高精度的转子提供了可靠的技术保证。Compared with the prior art, the utility model has the advantage that a small area is recessed inward at the edge of the tooth shape of the female mold cavity, so that the local density of the product in this part increases during finishing to achieve an increase. A function of the strength of the part. The utility model has a simple and reasonable structure, improves the density of the rotor at the edge of the tooth shape, improves the strength of this part, improves the wear resistance and the stability in the production process, and also improves the production efficiency and reduces the cost. It provides a reliable technical guarantee for the production of high-precision rotors.
附图说明Description of drawings
图1为本实用新型实施例的结构示意图；Fig. 1 is the structural representation of the utility model embodiment;
图2为图1的俯视图；Fig. 2 is the top view of Fig. 1;
图3为图2中A部分的局部放大图。FIG. 3 is a partially enlarged view of part A in FIG. 2 .
具体实施方式Detailed ways
以下结合附图实施例对本实用新型作进一步详细描述。The utility model is described in further detail below in conjunction with the accompanying drawings.
如图1～3所示，本实施例的粉末冶金转子类精整阴模结构，包括阴模本体1，阴模本体1的中部设有横截面为齿形12的型腔11，在型腔11内、齿形12的端部向内凹设有用于增加转子齿形边缘密度的内凹部13，该内凹部13的横截面呈梯形，内凹部13与齿形12端部的距离d与齿形12外径D之间的关系为d＝D×0.005mm。As shown in Figures 1 to 3, the powder metallurgy rotor type finishing female mold structure of this embodiment includes a female mold body 1, and the middle part of the female mold body 1 is provided with a cavity 11 with a tooth shape 12 in cross section. 11, the end of the tooth shape 12 is concaved inwardly, and an inner concave part 13 for increasing the edge density of the rotor tooth shape is provided. The cross section of the inner concave part 13 is trapezoidal, and the distance d between the inner concave part 13 and the end of the tooth shape 12 The relationship between the outer diameter D of shape 12 is d=D×0.005mm.
本实用新型经实施使用效果良好，且制造方便，较好地解决了转子在齿形边缘处的密度疏松问题。采用了本实施例的阴模结构后，对精整后产品切割齿部边缘处进行分析，比较常规零件，发现提高了产品在齿形边缘处的密度、提高了该部分的强度、提高了抗耐磨性以及生产过程中的稳定性。The utility model has good effect after being implemented, is convenient to manufacture, and better solves the problem of loose density of the rotor at the edge of the tooth shape. After adopting the female mold structure of this embodiment, the edge of the cutting tooth portion of the product after finishing is analyzed, and compared with conventional parts, it is found that the density of the product at the edge of the tooth shape is improved, the strength of this part is improved, and the resistance is improved. Wear resistance and stability during production.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614099.XU CN204209123U (en) | 2014-10-22 | 2014-10-22 | A kind of powder metallurgy rotor class finishing female mould structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614099.XU CN204209123U (en) | 2014-10-22 | 2014-10-22 | A kind of powder metallurgy rotor class finishing female mould structure |
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| CN204209123U true CN204209123U (en) | 2015-03-18 |
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| CN201420614099.XU Expired - Lifetime CN204209123U (en) | 2014-10-22 | 2014-10-22 | A kind of powder metallurgy rotor class finishing female mould structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039046A (en) * | 2019-05-31 | 2019-07-23 | 济南新艺粉末冶金有限公司 | A kind of powdered metal parts production compacting tool set and its application |
| CN112589096A (en) * | 2020-12-01 | 2021-04-02 | 青志(无锡)粉末铸锻有限公司 | Improve loose mould of local density of automobile oil pump rotor |
-
2014
- 2014-10-22 CN CN201420614099.XU patent/CN204209123U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039046A (en) * | 2019-05-31 | 2019-07-23 | 济南新艺粉末冶金有限公司 | A kind of powdered metal parts production compacting tool set and its application |
| CN112589096A (en) * | 2020-12-01 | 2021-04-02 | 青志(无锡)粉末铸锻有限公司 | Improve loose mould of local density of automobile oil pump rotor |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20150318 |