CN101513665A - Process and die for stamping girdle-free conical spheres - Google Patents
Process and die for stamping girdle-free conical spheres Download PDFInfo
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- CN101513665A CN101513665A CNA2008100579593A CN200810057959A CN101513665A CN 101513665 A CN101513665 A CN 101513665A CN A2008100579593 A CNA2008100579593 A CN A2008100579593A CN 200810057959 A CN200810057959 A CN 200810057959A CN 101513665 A CN101513665 A CN 101513665A
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Abstract
The invention discloses a process and a die for stamping girdle-free conical spheres. The process comprises the following steps that: a light process with one-off transverse extrusion is adopted to enable a material to have transverse deformation in the transverse direction so as to increase the tissue density of the material before being cut and forged; the cut-off length of the lightly pulled material is determined in a feeding structure; the lightly pulled material is cut off; and the cut material is sent into a tapering die cavity at an angle between 90 and 120 degrees and stamped so as to form sphere billets and manufacture the girdle-free conical spheres. The research and development of a novel girdle-free conical sphere die and a forging process increase the life span of the die and the utilization rate of the material, reduce the impact force of stamping, and ensure that the sphere billets can be knocked out more smoothly.
Description
Technical field
The present invention relates to the mould that uses in a kind of steel ball Sheet Metal Forming Technology and the punching course; Particularly a kind of Sheet Metal Forming Technology and mould that does not have the endless belt conical spheres.
Background technology
Use spherical mould at cold pier technology,, need bigger impulsive force and deflection, cause the frequent fatigue of mould, damage, machine failure rate height because of when dashing processing ball embryo.Owing to adopt common light drawing process, the density of material is compacted inadequately in this process, and product quality is difficult to the requirement that reaches high-quality; And band in the middle of the ball embryo that circular die is produced forms certain waste to material.
Summary of the invention
The invention provides a kind of the do not have Sheet Metal Forming Technology of endless belt conical spheres and the mould that die cavity has certain angle.
In order to solve above technical problem, a kind of Sheet Metal Forming Technology of not having the endless belt conical spheres of the present invention comprises selection, gently draws, feeding, pier press, and its punch steps is as follows:
A. make material generation transverse deformation gently being pulled through to take in the journey laterally gently to draw, the tissue density of material before increasing the blank pier and pressing;
B. the material that gently draws just is determined shearing length and carries out the cut-off part reason in the feeding structure;
C. the material of Qie Duaning is delivered to the mold center with 90～hexagonal angle degree conical cavity by clamp, forms the ball embryo by the mould punching press.
Realize the mould of the Sheet Metal Forming Technology of no endless belt conical spheres of the present invention, comprise two half-and-half bearing punching block embryos, leave centre hole between two half-and-half bearing punching block embryos, be provided with the thimble rod at the centre hole place, the die cavity of described two half-and-half bearing punching block embryos is between 90～120 °.
The invention has the advantages that:
1. adopt the light drawing process that once laterally pushes,, increase the tissue density of the preceding material of blank upsetting pressure from the transversely generation transversely deforming of material; The service life of not only having improved mould is more than 100%, improved stock utilization more than 2%, and reduced equipment failure rate, reduced and dashed the impulsive force that adds man-hour, the demoulding of ball base is more smooth and easy, solved the core technology difficult problem of steel ball stress contact fatigue life, thereby improved the service life of steel ball.
2. cold pier operation is used tapered mould, because die cavity has certain tapering, when dashing processing ball embryo, the resistance of metal flow also diminished mould fatigue, damage when pier compression, material were full of cavity bottom in the pier pressure, the machine failure rate just reduces, and improves the service life of apparatus.
3. use this die cavity to have the mould of certain tapering, eliminate pole, reduce the endless belt projecting height at die orifice position most possibly in polar region up and down.
Description of drawings
Figure is a structural representation of realizing the mould that Sheet Metal Forming Technology of the present invention adopted.
The specific embodiment
Selecting the material footpath is 9.0 steel wires, with steel wire on the lenient side the inlet of wire drawing machine pierce into, laterally gently draw, make material generation transverse deformation, the tissue density of material before increasing the blank pier and pressing; The steel wire that draws through kicking the beam will enter feed mechanism, just be determined shearing length and carry out the cut-off part reason in the feeding process; Steel wire section through cut off handling is sent to the taper die cavity center of mould through clamp, and the mould matched moulds is compressed into ball-type to steel by the stamping press of mould by lathe itself, finishes whole towards the ball process.
As shown in the figure, in this technology, in order to make the spheroid of no endless belt taper, the present invention has used a kind of 90～120 ° taper die, this mould is made up of two half-and-half bearing punching block embryos 1,2, and the die cavity size of described bearing steel mold base 1,2 is identical, all between 90～120 °; Between two half-and-half bearing punching block embryos 1,2, leave centre hole 3,3 places are provided with thimble rod 4 at centre hole, during work, bearing steel mold base 1,2 matched moulds, the steel ball metal material enters mold base, under the effect of mold base, form spherical because die cavity has 90～120 ° tapering, formed spherical in the middle of no endless belt.After the moulding, thimble rod 4 upwards pushes up by centre hole 3 the steel ball material, makes the steel ball demoulding in mold base.
Claims (2)
1. a Sheet Metal Forming Technology and mould that does not have the endless belt conical spheres comprises selection, gently draws, feeding, pier press, and it is characterized in that: its Sheet Metal Forming Technology is as follows:
A. make material generation transverse deformation gently being pulled through to take in the journey laterally gently to draw, the tissue density of material before increasing the blank pier and pressing;
B. the material that gently draws just is determined shearing length and carries out the cut-off part reason in the feeding structure;
C. the material of Qie Duaning is delivered to the mold center with 90～hexagonal angle degree conical cavity by clamp, forms the ball embryo by the mould punching press.
2. mould of realizing the Sheet Metal Forming Technology of the described no endless belt conical spheres of claim 1, comprise two half-and-half bearing punching block embryos, between two half-and-half bearing punching block embryos, leave centre hole, be provided with the thimble rod at the centre hole place, it is characterized in that: the die cavity of described two half-and-half bearing punching block embryos is between 90～120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100579593A CN101513665A (en) | 2008-02-21 | 2008-02-21 | Process and die for stamping girdle-free conical spheres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100579593A CN101513665A (en) | 2008-02-21 | 2008-02-21 | Process and die for stamping girdle-free conical spheres |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101513665A true CN101513665A (en) | 2009-08-26 |
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ID=41038370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100579593A Pending CN101513665A (en) | 2008-02-21 | 2008-02-21 | Process and die for stamping girdle-free conical spheres |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101513665A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799048A (en) * | 2010-03-08 | 2010-08-11 | 江苏力星钢球有限公司 | Manufacturing process of high-speed precision bearing steel ball |
| CN103567345A (en) * | 2012-08-07 | 2014-02-12 | 洪泽县汽车半轴制造有限公司 | Automobile half-axle rough forging and pressing mould |
| CN105598338A (en) * | 2016-03-18 | 2016-05-25 | 国营第六一六厂 | Taper sleeve assembling structure of jaw body and jaw insert |
| CN111069383A (en) * | 2019-11-22 | 2020-04-28 | 中国航发哈尔滨轴承有限公司 | Improvement of stainless steel ball cold stamping technology for aviation bearing |
-
2008
- 2008-02-21 CN CNA2008100579593A patent/CN101513665A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799048A (en) * | 2010-03-08 | 2010-08-11 | 江苏力星钢球有限公司 | Manufacturing process of high-speed precision bearing steel ball |
| CN101799048B (en) * | 2010-03-08 | 2011-11-23 | 江苏力星通用钢球股份有限公司 | Manufacturing process of high-speed precision bearing steel ball |
| CN103567345A (en) * | 2012-08-07 | 2014-02-12 | 洪泽县汽车半轴制造有限公司 | Automobile half-axle rough forging and pressing mould |
| CN105598338A (en) * | 2016-03-18 | 2016-05-25 | 国营第六一六厂 | Taper sleeve assembling structure of jaw body and jaw insert |
| CN105598338B (en) * | 2016-03-18 | 2018-05-08 | 国营第六一六厂 | The tapered sleeve assembling structure of jaw body and jaw insert |
| CN111069383A (en) * | 2019-11-22 | 2020-04-28 | 中国航发哈尔滨轴承有限公司 | Improvement of stainless steel ball cold stamping technology for aviation bearing |
| CN111069383B (en) * | 2019-11-22 | 2021-11-26 | 中国航发哈尔滨轴承有限公司 | Improvement of stainless steel ball cold stamping technology for aviation bearing |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090826 |