CN114346148A - Multilayer extrusion die suitable for revolving body extrusion part - Google Patents
Multilayer extrusion die suitable for revolving body extrusion part Download PDFInfo
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- CN114346148A CN114346148A CN202111591481.4A CN202111591481A CN114346148A CN 114346148 A CN114346148 A CN 114346148A CN 202111591481 A CN202111591481 A CN 202111591481A CN 114346148 A CN114346148 A CN 114346148A
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- extrusion
- female die
- small end
- step cylinder
- arc groove
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- 238000001125 extrusion Methods 0.000 title claims abstract description 59
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
A multilayer extrusion female die suitable for a revolving body extrusion part is shaped like a step cylinder, the center of the circle of the step cylinder is provided with a through hole, the upper part of the step cylinder is a small end, and the lower part of the step cylinder is a big end; the height H of the small end of the step cylinder is more than or equal to one fifth of the total height H of the female die, the circumference of the small end ring at the upper part of the extrusion female die (1) is provided with the arc groove (2), the arc groove (2) is positioned at the half of the height H of the small end of the step cylinder, the arc radius R of the arc groove (2) is more than or equal to one fifth of the height H of the small end of the step cylinder, and the depth t of the arc groove (2) is more than or equal to four fifths of the arc radius.
Description
Technical Field
The invention belongs to the technical field of dies, and particularly relates to a multilayer extrusion female die suitable for a revolving body extrusion part.
Background
In industrial production, a mold is often required to process and produce workpieces. See fig. 1. A multi-layer extrusion female die for a revolving body extrusion part is provided, and in order to facilitate the installation and the disassembly of the extrusion female die in the use process, a thread lifting hole 3 is usually arranged on an outer ring at the top end of the extrusion female die for lifting. The thread lifting hole 3 of the extrusion female die enables the extrusion female die to be broken frequently in the process of manufacturing the die or extruding a blank. The reason for this kind of phenomenon is because the influence of stress leads to the extrusion die to cause the outer ring of extrusion die to explode and split because of screw thread lifting eye 3 department stress concentration when carrying out heat treatment in making, perhaps causes the outer ring of extrusion die to break because of screw thread lifting eye 3 department stress concentration when extrusion blank is pressfitting, and its crackle all passes through the outer ring screw lifting eye 3 of extrusion die, causes the extrusion die to damage and can not use.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a multilayer extrusion female die suitable for a revolving body extrusion part.
The annular arc groove replaces a threaded hole of a die to be used for lifting, so that the extrusion female die of the revolving body extrusion part can be prevented, the extrusion female die is not easy to crack or break in the die manufacturing or blank extrusion process, the manufacturing qualification rate of the extrusion female die is improved, and the service life is prolonged.
The invention relates to a multilayer extrusion female die 1 suitable for a revolving body extrusion part, which is a combination of multilayer structures, the appearance of the die is a step cylinder, the center of the circle is provided with a through hole, the upper part of the step cylinder is a small end, and the lower part of the step cylinder is a large end. The height H of the small end of the step cylinder is more than or equal to one fifth of the total height H of the female die, the circumference of the small end ring at the upper part of the extrusion female die 1 is provided with an arc groove 2, the arc groove 2 is positioned at one half of the height H of the small end of the step cylinder, the arc radius R of the arc groove 2 is more than or equal to one fifth of the height H of the small end of the step cylinder, the depth t of the arc groove 2 is more than or equal to four fifths of the arc radius, and when the extrusion female die 1 needs to be lifted or placed, the extrusion female die 1 can be lifted or placed by sleeving a rope on the annular arc groove 2 at the small end of the extrusion female die 1.
According to the invention, the lifting hole arranged on the outer ring at the top end of the original die is omitted, and the circular arc groove for lifting is arranged on the circumference of the small end ring of the step cylinder, so that the explosion crack caused by stress concentration at the lifting hole when the extrusion female die is subjected to heat treatment is effectively avoided, and the manufacturing yield of the extrusion female die is improved; the damage caused by cracking due to uneven stress distribution in the extrusion process is avoided; because the annular arc groove is adopted for hoisting, the hoisting or installation is convenient, the safety is good in the using process, the manufacturing is simple, and the cost is low.
Drawings
FIG. 1 is a perspective view of an extrusion die with lifting holes;
FIG. 2 is a perspective view of an extrusion die;
FIG. 3 is a schematic view of the present invention;
in the above figures: 1. extrusion die 2, circular arc groove
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Examples
A multi-layer extrusion female die suitable for a revolving body extrusion part according to the embodiment is shown in fig. 2 and fig. 3, the extrusion female die is a combination of multi-layer structures, the shape of the extrusion female die is a stepped cylinder, the center of the circle of the extrusion female die is provided with a through hole, the upper part of the stepped cylinder is a small end, and the lower part of the stepped cylinder is a large end; the height H of the small end of the step cylinder is more than or equal to one fifth of the total height H of the female die, the circumference of the small end ring at the upper part of the extrusion female die 1 is provided with an arc groove 2, the arc groove 2 is positioned at one half of the height H of the small end of the step cylinder, the arc radius R of the arc groove 2 is more than or equal to one fifth of the height H of the small end of the step cylinder, the depth t of the arc groove 2 is more than or equal to four fifths of the arc radius, and when the extrusion female die 1 needs to be lifted or placed, the extrusion female die 1 can be lifted or placed by sleeving a rope on the annular arc groove 2 at the small end of the extrusion female die 1.
According to the invention, the lifting hole arranged on the outer ring at the top end of the original die is omitted, and the circular arc groove for lifting is arranged on the circumference of the small end ring of the step cylinder, so that the explosion crack caused by stress concentration at the lifting hole when the extrusion female die is subjected to heat treatment is effectively avoided, and the manufacturing yield of the extrusion female die is improved; the damage caused by cracking due to uneven stress distribution in the extrusion process is avoided; because the annular arc groove is adopted for hoisting, the hoisting or installation is convenient, the safety is good in the using process, the manufacturing is simple, and the cost is low.
Claims (1)
1. The utility model provides a multilayer extrusion die suitable for solid of revolution extrusion part, characterized by: the extrusion female die is a combination of a multilayer structure, the appearance of the extrusion female die is a step cylinder, the center of the circle is provided with a through hole, the upper part of the step cylinder is a small end, and the lower part of the step cylinder is a large end; the height H of the small end of the step cylinder is more than or equal to one fifth of the total height H of the female die, the circumference of the small end ring on the upper part of the extrusion female die (1) is provided with an arc groove (2), the arc groove (2) is positioned at one half of the height H of the small end of the step cylinder, the arc radius R of the arc groove (2) is more than or equal to one fifth of the height H of the small end of the step cylinder, the depth t of the arc groove (2) is more than or equal to four fifths of the arc radius, and the extrusion female die (1) can be lifted or placed by sleeving a rope on the annular arc groove (2) at the small end of the extrusion female die (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111591481.4A CN114346148A (en) | 2021-12-23 | 2021-12-23 | Multilayer extrusion die suitable for revolving body extrusion part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111591481.4A CN114346148A (en) | 2021-12-23 | 2021-12-23 | Multilayer extrusion die suitable for revolving body extrusion part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114346148A true CN114346148A (en) | 2022-04-15 |
Family
ID=81100464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111591481.4A Pending CN114346148A (en) | 2021-12-23 | 2021-12-23 | Multilayer extrusion die suitable for revolving body extrusion part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114346148A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2761303Y (en) * | 2005-01-25 | 2006-03-01 | 长安汽车（集团）有限责任公司 | Extruding die |
| CN202290851U (en) * | 2011-11-10 | 2012-07-04 | 西安航空动力股份有限公司 | Insert type extrusion die |
| CN204338600U (en) * | 2014-12-11 | 2015-05-20 | 重庆正松科技服务有限公司 | Conical pipe cold-extrusion shaping device |
| CN109332411A (en) * | 2018-11-17 | 2019-02-15 | 太原科技大学 | A kind of crowded pipe forming device squeezed for non-ferrous metal continuous several times |
| CN214768660U (en) * | 2020-12-17 | 2021-11-19 | 盐城中德精锻股份有限公司 | Coal cutting pick mold structure capable of preventing mold from cracking |
-
2021
- 2021-12-23 CN CN202111591481.4A patent/CN114346148A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2761303Y (en) * | 2005-01-25 | 2006-03-01 | 长安汽车（集团）有限责任公司 | Extruding die |
| CN202290851U (en) * | 2011-11-10 | 2012-07-04 | 西安航空动力股份有限公司 | Insert type extrusion die |
| CN204338600U (en) * | 2014-12-11 | 2015-05-20 | 重庆正松科技服务有限公司 | Conical pipe cold-extrusion shaping device |
| CN109332411A (en) * | 2018-11-17 | 2019-02-15 | 太原科技大学 | A kind of crowded pipe forming device squeezed for non-ferrous metal continuous several times |
| CN214768660U (en) * | 2020-12-17 | 2021-11-19 | 盐城中德精锻股份有限公司 | Coal cutting pick mold structure capable of preventing mold from cracking |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220415 |
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| WD01 | Invention patent application deemed withdrawn after publication |