CN107186145B - Die structure of long-handle sliding sleeve reducing lower die - Google Patents
Die structure of long-handle sliding sleeve reducing lower die Download PDFInfo
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- CN107186145B CN107186145B CN201710446213.0A CN201710446213A CN107186145B CN 107186145 B CN107186145 B CN 107186145B CN 201710446213 A CN201710446213 A CN 201710446213A CN 107186145 B CN107186145 B CN 107186145B
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- reducing
- ligament
- die
- diameter
- sliding sleeve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
Abstract
The invention discloses a die structure of a long-handle sliding sleeve reducing lower die, which comprises a reducing female die, wherein a reducing ligament is arranged in the reducing female die, and the die structure is characterized in that: and a section of right-supporting ligament is added below the diameter-reducing tough belt. According to the die structure of the long-handle sliding sleeve reducing lower die, the problem that the rod part of the long-handle sliding sleeve is too large after reducing is solved by adding a section of righting ligament to the reducing female die.
Description
Technical Field
The invention relates to the technical field of metal pressure processing, in particular to a die structure of a long-handle sliding sleeve reducing lower die.
Background
The sliding sleeve is an important part in an automobile transmission system, the demand of the long-handle sliding sleeve is continuously increased in recent years, and most of the jumping of a traditional die structure forging after cold forging and reducing exceeds tolerance, so that the sliding sleeve is very unstable. The general method is to straighten the forging after reducing, so as to increase the forging period and cost. After the cold forging and reducing are finished, the rod part jumps too much due to the overlong rod part and the springback after the cold forging, and most of the rod part jumps beyond the tolerance of the forged piece. By the die structure, the phenomenon of overlarge jump of the forged piece after the forged piece is separated from the die cavity can be effectively solved. A new mold structure is needed to solve the problem of overlarge rod part jump after the long-handle sliding sleeve is reduced in diameter.
Disclosure of Invention
The invention aims to: overcome the not enough of prior art existence, solve the problem that exists among the prior art, provide the die structure of a long handle sliding sleeve reducing lower mould, can effectually solve the forging and break away from the too big phenomenon of beating behind the die cavity.
The technical scheme of the invention is as follows:
the utility model provides a mould structure of long handle sliding sleeve reducing lower mould, includes the reducing die, is provided with the reducing ligament in the reducing die, its characterized in that: and a section of right-supporting ligament is added below the diameter-reducing tough belt.
Preferably, the distance between the righting ligament and the reducing ligament is the same as the diameter of the reducing ligament.
Preferably, the diameter of the posterior space of the reduced diameter ligament Φ D1 is the diameter of the reduced diameter ligament Φ D + Δ 1, wherein Δ 1 is 0.4mm to 0.6 mm;
preferably, the diameter of the right ligament Φ D2 is the diameter of the reduced ligament Φ D + Δ 2, where Δ 2 is 0.3mm to 0.4 mm.
Preferably, the diameter of the posterior space of the right ligament Φ D3 is equal to the diameter of the right ligament Φ D2+ Δ 3, wherein Δ 3 is 0.3mm to 0.4 mm.
The invention has the advantages that:
according to the die structure of the long-handle sliding sleeve reducing lower die, the problem that the rod part of the long-handle sliding sleeve is too large after reducing is solved by adding a section of righting ligament to the reducing female die.
Drawings
The invention is further described with reference to the following figures and examples:
FIG. 1 is a schematic view of a mold structure of the long-handle sliding sleeve reducing lower mold of the invention.
FIG. 2 is an enlarged view of a portion I of FIG. 1.
Fig. 3 is an enlarged view of part ii of fig. 1.
Wherein: 1. reducing concave die 2, reducing ligament 3 and righting ligament
Detailed Description
The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.
As shown in figure 1, the invention discloses a die structure of a long-handle sliding sleeve reducing lower die, which comprises a reducing female die 1, wherein a reducing ligament 2 is arranged in the reducing female die 1, and a section of righting ligament 3 is additionally arranged below the reducing ligament 2. According to the die structure of the long-handle sliding sleeve reducing lower die, the problem that the rod part of the long-handle sliding sleeve is too large after reducing is solved by adding the strengthening ligament 3 to the reducing female die 1.
For convenience of processing and better solving the problem of excessive jumping, it is preferable that the distance between the righting ligament 3 and the reducing ligament 2 is the same as the diameter of the reducing ligament 2.
In order to ensure the machining accuracy, it is preferable that the posterior gap diameter Φ D1 of the reduced diameter ligament 2 be equal to the diameter Φ D + Δ 1 of the reduced diameter ligament 2(Δ 1 be 0.4mm to 0.6 mm).
In order to ensure the machining accuracy and facilitate the machining, it is preferable that the diameter Φ D2 of the ligament for strengthening 3 be equal to the diameter Φ D + Δ 2 of the ligament for reducing 2(Δ 2 be 0.3mm to 0.4 mm).
In order to ensure the machining precision and facilitate the machining, it is preferable that the gap diameter Φ D3 of the ligament 3 be equal to the ligament 3 diameter Φ D2+ Δ 3(Δ 3 be 0.3mm to 0.4 mm).
According to the invention, a section of righting ligament 3 is added below the reduced diameter ligament 2, the distance between the righting ligament 3 and the reduced diameter ligament 2 is determined according to the diameter of the reduced diameter ligament 2, and the posterior gap of the ligament is determined by the diameter of the ligament and the fixed gap. The forging piece reduces the jumping of the rod part by righting the ligament 3 in the material returning process, and the problem that the long-handle sliding sleeve cannot be directly machined due to overlarge jumping after cold forging and diameter reduction is solved.
The invention has various embodiments, and all technical solutions formed by adopting equivalent transformation or equivalent transformation are within the protection scope of the invention.
Claims (2)
1. The utility model provides a mould structure of long handle sliding sleeve reducing lower mould, includes the reducing die, is provided with the reducing ligament in the reducing die, its characterized in that: adding a section of strengthening ligament below the diameter-reducing ligament;
the distance between the righting ligament and the reducing ligament is the same as the diameter of the reducing ligament, the diameter phi D1 of the back gap of the reducing ligament is equal to the diameter phi D + delta 1 of the reducing ligament, wherein the delta 1 is 0.4-0.6 mm;
the diameter of the strengthening ligament phi D2 is equal to the diameter of the reducing ligament phi D + delta 2, wherein delta 2 is 0.3 mm-0.4 mm.
2. The die structure of the long-handle sliding sleeve reducing lower die as claimed in claim 1, wherein: the diameter phi D3 of the posterior space of the strengthening ligament is equal to the diameter phi D2+ delta 3 of the strengthening ligament, wherein delta 3 is 0.3 mm-0.4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710446213.0A CN107186145B (en) | 2017-06-14 | 2017-06-14 | Die structure of long-handle sliding sleeve reducing lower die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710446213.0A CN107186145B (en) | 2017-06-14 | 2017-06-14 | Die structure of long-handle sliding sleeve reducing lower die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107186145A CN107186145A (en) | 2017-09-22 |
| CN107186145B true CN107186145B (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710446213.0A Active CN107186145B (en) | 2017-06-14 | 2017-06-14 | Die structure of long-handle sliding sleeve reducing lower die |
Country Status (1)
| Country | Link |
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| CN (1) | CN107186145B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261876B (en) * | 2018-09-30 | 2023-10-20 | 江苏理研科技股份有限公司 | Bar reducing die with floating centralizing structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335702B (en) * | 2011-08-19 | 2014-04-02 | 江苏森威精锻有限公司 | Formation method for improving finishing accuracy of universal joint sliding sleeve and mould thereof |
| CN203664572U (en) * | 2013-12-18 | 2014-06-25 | 江苏森威精锻有限公司 | Long-pole type high-accuracy mold structure |
| CN104607586A (en) * | 2015-02-03 | 2015-05-13 | 大丰市中德精锻件有限公司 | Diameter reducing mold structure of long-shaft special-shaped universal joint |
| CN205289627U (en) * | 2015-12-29 | 2016-06-08 | 大丰市昱祺机械制造有限公司 | Die with closing chamber |
| CN207857755U (en) * | 2017-06-14 | 2018-09-14 | 江苏森威精锻有限公司 | A kind of mould structure of long handle sliding sleeve tube reducing lower die |
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2017
- 2017-06-14 CN CN201710446213.0A patent/CN107186145B/en active Active
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| Publication number | Publication date |
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| CN107186145A (en) | 2017-09-22 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 224100 Nanxiang Road 299, Dafeng Economic Development Zone, Yancheng City, Jiangsu Applicant after: Jiangsu Sunway Precision Forging Co., Ltd. Address before: 224100 No. 299 Nanxiang Road, Yancheng City Economic Development Zone, Jiangsu Applicant before: Jiangsu Sunway Precision Forging Co., Ltd. |
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