CN1227082C - Technology for producing preformed blank of flange and fork group products, and special die - Google Patents
Technology for producing preformed blank of flange and fork group products, and special die Download PDFInfo
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- CN1227082C CN1227082C CN 02112370 CN02112370A CN1227082C CN 1227082 C CN1227082 C CN 1227082C CN 02112370 CN02112370 CN 02112370 CN 02112370 A CN02112370 A CN 02112370A CN 1227082 C CN1227082 C CN 1227082C
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Abstract
The present invention relates to technology for producing a preformed blank of flanged yoke products. The present invention comprises the procedures of baiting, heating, partial upsetting extrusion (making a blank mould) and preforming; a heated and blanked metal material is put in a special preformed blank preforming mould for partial upsetting extrusion, and upset in a closed mould cavity so as to form a rod part, metals outside the closed mould cavity are freely upset so as to form a disk part, and then, the preformed blank is put in a post-forging mould cavity, so that the upset rod part is further formed into a yoke part in a stretching mode, while the disk part is formed into the flange part of the product by extrusion. In the present invention, a partial upsetting extrusion method is scientifically and reasonably adopted to make a rod-shaped metal raw material into a preformed blank body composed of the rod part and the disk part in the preformed blank preforming mould with simple structure; the present invention ensures the good filling of the yoke part and no waste of excessive metal materials, improves the conditions of metal flow during final forming, and realizes the early forming and the rapid forming of parts difficult to form.
Description
Technical field
The present invention relates to a kind of production and processing technology and particular manufacturing craft thereof of flanged yoke series products, especially relate to a kind of by metal flowing forming rule, elder generation's jumping-up is made the preformed blank, is forged into the production technology and the particular manufacturing craft thereof of big flanged yoke series products again in the final shaping unit impression.
Background technology
The production and processing technology of original flanged yoke series products mainly contains blanking → heating → first time jumping-up → secondary jumping-up → preformed → operations such as final shaping unit → hot trimming.Adopt former processing technology, because high and narrow dark muscle molding condition is very bad, general muscle portion depth-width ratio is 4-5 times, has just reached the limit of common process technology.In addition, surpass 3.5 times, the easy product bending of free compression when upset ratio, crackle appears, and, the blank behind the jumping-up is directly entered impression be shaped, because metal volume distribution is unreasonable, the place that these materials are many does not have sufficient source, a large amount of burr of local product that should not materials.Both wasted material, and increased the metal level projected area simultaneously again, promptly the mould bearing capacity strengthens, and shortens the service life of mould.
Summary of the invention
The present invention mainly is that to solve existing Forging Technology the flowing of existing metal, volume distributed median in producing big flanged yoke series products technology unreasonable, is prone to crackle, and ring flange edge and fork two ends easily produce and technical problem such as be not fully filled.
The present invention also solves the large percentage of existing Forging Technology existing clout in producing big flanged yoke series products technology, waste of material not only, and to technical problems such as die life are unfavorable.
The present invention relates to a kind of production technology of preformed blank of flange and fork group products, it comprises blanking, heating, metal material after the blanking, be heated to a certain degree, in the base mould, carry out the gathering stock extruding, jumping-up forms bar portion in the die cavity of sealing, Metal Free Upsetting and formation dish portion beyond the near closed hollow ring; Should put into finish impression by preformed blank then, and be shaped to fork with the bar portion behind the jumping-up and then in the mode of broadening, its dish portion then extrusion modling is the flange portion of product.That is to say, the present invention is the base substrate that will directly adopt jumping-up is forged into product in the final shaping unit mould a prior art, science, the method that reasonably adopts local thick upsetting squeeze to press, shaft-like raw metal is made the preformed base substrate that is made of bar portion and dish portion in preformed base mould simple in structure, this two parts volume is corresponding with the fork and the flange portion of product respectively.Described dish portion's diameter and thickness etc. are except adopting mold shape determines, a kind of preferable scheme is that the thickness h of described dish portion is determined it by the forging and pressing stroke of forcing press.
As preferably, the lower surface of described dish portion and angle α=5 of horizontal plane °-15 °, and the knuckle R=10-30mm between two bodies of preformed blank.
As preferably, the thickness h of described blank dish portion is 1 with the ratio of ring flange product parts thickness s: (1-1.30), the described blank dish diameter D of portion is 1 with the ratio of ring flange product parts diameter of phi: (1-1.15); And the ratio of flange thickness s and ring flange diameter of phi is 1: (4-5), thickness also can be called width, and diameter also can be called height.
As preferably, described bar end surface long-pending with the long-pending ratio of fork average cross-section be 1: (1.15-1.20), the length L of bar portion
1Length L with fork
2Ratio be about L
1=L
2(0.6-0.8).The structural parameters of above-mentioned preformed blank (or mould) both had been beneficial to metal flow, can guarantee the accurately location moulding in finish impression of flanged yoke series products again.
A kind of particular manufacturing craft of preformed blank of flange and fork group products is characterized in that being provided with the die cavity of truncated cone-shaped in described base counterdie, its tapering is β=3 °-7 °, its degree of depth L
1Length L with fork
2Ratio be about L
1=L
2(0.6-0.8), and described patrix is the plane swaging that places on the forcing press.
Therefore, the present invention has rational in infrastructure, can reasonably carry out the volume distribution according to fork and flange portion shaping characteristic, has saved raw material, reduces production costs, and has improved production efficiency, more can guarantee characteristics such as product quality, stable processing technique.In addition, the process of manufacture of flanged yoke series products is divided into two parts, and is less to the impulsive force of preformed base mould and finish-forging mould, helps prolonging the service life of mould.
Description of drawings
Accompanying drawing 1 is a preformed base mould structure schematic diagram of the present invention;
Accompanying drawing 2 is finish forging mould structure schematic diagrames of the present invention;
Accompanying drawing 3 is the another kind of finish forging mould of the present invention cross-sectional view.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: the particular manufacturing craft of preformed blank of flange and fork group products, in the base counterdie, be provided with the die cavity of truncated cone-shaped, its tapering is β=3 °-7 °, its degree of depth L
1Length L with fork
2Ratio be about L
1=L
2(0.6-0.8), and patrix is the plane swaging that places on the forcing press.Metal material after the blanking is heated to a certain degree, carries out the gathering stock extruding in the base mould, and jumping-up forms bar portion in the die cavity of sealing, Metal Free Upsetting and formation dish portion beyond the near closed hollow ring.The thickness h of dish portion is determined by the forging and pressing stroke of forcing press; The lower surface of dish portion and the angle theta of horizontal plane=5 °-15 °, and the knuckle R=10-30mm between two bodies of preformed blank.The thickness h of dish portion is 1 with the ratio of flange thickness s: (1-1.30), the diameter D of dish portion is 1 with the ratio of ring flange diameter of phi: (1-1.15); And the ratio of flange thickness (or width) s and ring flange diameter (or height) Φ is 1: (4-5).The ratio that the bar end surface is long-pending and the fork average cross-section is long-pending is 1: (1.15-1.20), and the length L of bar portion
1Length L with fork
2Ratio be about L
1=L
2(0.6-0.8).Should put into finish impression by preformed blank then, and be shaped to fork with the bar portion behind the jumping-up and then in the mode of broadening, its dish portion then extrusion modling is the flange portion of product.
Preformed, the deformation process of flanged yoke series products are divided into two parts.The moulding near closed hollow ring earlier of product fork can guarantee that fork is full of well, and not waste too much metal material; The product flange section adopts the local thick mode of forging, and is pressed into disk in advance earlier, can partly put into the final shaping unit die cavity, and the condition of the metal flow when having improved its final shaping unit makes difficult moulding position precocity type, fast moulding.In addition, the thickness of preformed process mid-game portion is guaranteed by the forging and pressing stroke of forcing press, and degree of accuracy height has been avoided the manual operation loss and waste of bringing lack of standardization.In a word, the metal flow shaping rule of final shaping unit needs has been satisfied in preformed, and deformation mechanism is comprehensive for what forge slightly, push.
Claims (9)
1. a flanged yoke series products is through the production technology of preformed base, comprise blanking, heating, after it is characterized in that the metal material heating after the blanking, in the base mould, carry out the gathering stock extruding, jumping-up forms bar portion (3) in the die cavity of sealing, and the Metal Free Upsetting beyond the near closed hollow ring also forms blank dish portion (2); Should put into finish impression (4) by preformed blank (1) then, and be shaped to fork with the bar portion (3) behind the jumping-up and then in the mode of broadening, its dish portion then extrusion modling is the flange portion of product.
2. flanged yoke series products according to claim 1 is characterized in that through the production technology of preformed base the thickness h of described blank dish portion (2) is determined it by the forging and pressing stroke of forcing press.
3. flanged yoke series products according to claim 1 and 2 is through the production technology of preformed base, angle theta=5 °-15 ° that it is characterized in that the lower surface of described blank dish portion (2) and horizontal plane, and the knuckle R=10-30mm between two bodies of preformed blank.
4. flanged yoke series products according to claim 1 and 2 is through the production technology of preformed base, the thickness h that it is characterized in that described blank dish portion (2) is 1 with the ratio of ring flange product parts thickness s: (1-1.30), the diameter D of described blank dish portion (2) is 1 with the ratio of ring flange product parts diameter Ф: (1-1.15); And the ratio of flange thickness s and ring flange diameter Ф is 1: (4-5), thickness also can be called width, and diameter also can be called height.
5. flanged yoke series products according to claim 3 is through the production technology of preformed base, the thickness h that it is characterized in that described blank dish portion (2) is 1 with the ratio of ring flange product parts thickness s: (1-1.30), the diameter D of described blank dish portion (2) is 1 with the ratio of ring flange product parts diameter Ф: (1-1.15); And the ratio of flange thickness s and ring flange diameter Ф is 1: (4-5), thickness also can be called width, and diameter also can be called height.
6. flanged yoke series products according to claim 1 and 2 is characterized in that through the production technology of preformed base the long-pending ratio of described bar portion (3) end area and fork average cross-section is 1: (1.15-1.20), and the length L of bar portion (3)
1Length L with fork
2Ratio be about L
1=L
2(0.6-0.8).
7. flanged yoke series products according to claim 3 is characterized in that through the production technology of preformed base the long-pending ratio of described bar portion (3) end area and fork average cross-section is 1: (1.15-1.20), and the length L of bar portion (3)
1Length L with fork
2Ratio be about L
1=L
2(0.6-0.8).
8. flanged yoke series products according to claim 4 is characterized in that through the production technology of preformed base the long-pending ratio of described bar portion (3) end area and fork average cross-section is 1: (1.15-1.20), and the length L of bar portion (3)
1Length L with fork
2Ratio be about L
1=L
2(0.6-0.8).
9. the particular manufacturing craft of a preformed blank of flange and fork group products is characterized in that being provided with the die cavity of truncated cone-shaped in described base counterdie, its tapering is β=3 °-7 °, its degree of depth L
1Length L with fork
2Ratio be about L
1=L
2(0.6-0.8), and described patrix is the plane swaging that places on the forcing press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112370 CN1227082C (en) | 2002-07-02 | 2002-07-02 | Technology for producing preformed blank of flange and fork group products, and special die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112370 CN1227082C (en) | 2002-07-02 | 2002-07-02 | Technology for producing preformed blank of flange and fork group products, and special die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1465455A CN1465455A (en) | 2004-01-07 |
| CN1227082C true CN1227082C (en) | 2005-11-16 |
Family
ID=34141893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02112370 Expired - Fee Related CN1227082C (en) | 2002-07-02 | 2002-07-02 | Technology for producing preformed blank of flange and fork group products, and special die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1227082C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319863A (en) * | 2011-08-01 | 2012-01-18 | 贵州航天新力铸锻有限责任公司 | Method for forging soldering-free funnel-shaped flanges for petroChina (PTR) flush and drainage pipelines of nuclear power plant |
| CN103551476B (en) * | 2013-11-05 | 2015-08-26 | 洛阳双瑞特种装备有限公司 | A kind of corrosion resistant alloy flange forges even moulding process and mould |
| CN104289542B (en) * | 2014-04-28 | 2016-04-27 | 河南科技大学 | There is the forming method of the axial workpiece of flange |
| CN104525816B (en) * | 2014-12-05 | 2017-03-15 | 万向钱潮传动轴有限公司 | A kind of forging processing unit (plant) of transmission shaft flange fork and processing technique |
| CN109676070B (en) * | 2018-12-11 | 2021-08-27 | 贵州航天精工制造有限公司 | Manufacturing method of fluid seal cover for nuclear power voltage stabilizer |
-
2002
- 2002-07-02 CN CN 02112370 patent/CN1227082C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1465455A (en) | 2004-01-07 |
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| C14 | Grant of patent or utility model | ||
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Owner name: WANXIANG QIANCHAO DRIVE SHAFT CO., LTD. Free format text: FORMER OWNER: UNIVERSAL DRIVING SHAFT CO., LTD., HANZHOU CITY Effective date: 20120511 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120511 Address after: 311215 Xiaoshan economic and Technological Development Zone, Hangzhou, Wanxiang Road, No. 1, Zhejiang Patentee after: Wanxiang Qianchao Drive Shaft Co., Ltd. Address before: 311215 Xiaoshan Wanxiang town Wanxiang Group Technology Center, Zhejiang Patentee before: Universal Driving Shaft Co., Ltd., Hanzhou City |
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| 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: 20051116 Termination date: 20170702 |