CN104368745A - Forming technology applicable to intermediate shaft type forge piece - Google Patents
Forming technology applicable to intermediate shaft type forge piece Download PDFInfo
- Publication number
- CN104368745A CN104368745A CN201410617294.2A CN201410617294A CN104368745A CN 104368745 A CN104368745 A CN 104368745A CN 201410617294 A CN201410617294 A CN 201410617294A CN 104368745 A CN104368745 A CN 104368745A
- Authority
- CN
- China
- Prior art keywords
- forging
- length
- section
- diameter
- stage casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 16
- 238000005242 forging Methods 0.000 claims abstract description 82
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 238000009987 spinning Methods 0.000 claims description 6
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 4
- 238000003754 machining Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/06—Making machine elements axles or shafts
- B21K1/12—Making machine elements axles or shafts of specially-shaped cross-section
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
Abstract
The invention provides a forming technology applicable to an intermediate shaft type forge piece. The forming technology comprises the specific steps that 1, a steel ingot is forged to be a forge piece blank with the diameter of D5; 2, the necking procedure is carried out, wherein the necking length H1'' of the left section is equal to the result of dividing the weight of the left end of the intermediate shaft type forge piece by D5, the necking length of the middle section is H2'', and the necking length H3'' of the right section is the result of dividing the weight of the right end of the intermediate shaft type forge piece by D5; 3, the middle section of the forge piece blank is forged to be D2 in diameter and H2 in length; 4, the left section of the forge piece blank is subjected to die forging, an upper anvil spins the left section of the forge piece blank to be D1 in diameter and H1 in length, the right section of the forge piece blank is subjected to die forging, and the upper anvil spins the right section of the forge piece blank to be D3 in diameter and H3 in length. The weight of forge pieces does not need to be additionally increased in the forging process, few materials are consumed, the mechanical machining capacity is also reduced, the mechanical machining time is shortened, the efficiency of taking effect is improved, and consumption is reduced in the production process.
Description
technical field
The invention belongs to large forgings forging and molding technical field, be specifically related to a kind of forming technology being applicable to jackshaft forging.
background technology
Fig. 1 shows the structure of jackshaft forging, for three stage structure, be left section (diameter D1, length H1), stage casing (diameter D2, length H2) and right section (diameter D3, length H3) in turn, D1 >=D3 > D2, stage casing diameter D2 is little for this forging maximum feature, left and right section diameter (D1, D3) is large and length (H1, H3) is less, and adjacent stations jump (D1-D2, D3-D2) is larger.
According to forging experience in the past, as shown in Figure 2, be first swaged into the forging blank of diameter D4 during forging, haulage reserved during D4=D1+ pressure shoulder, is generally D4=D1+60 ~ 100mm.Follow weight conservation principle, carry out pressure shoulder operation, according to left section of jackshaft forging, when stage casing and right section of respective weighing scale calculate diameter D4, the length of corresponding three sections is respectively H1 ', H2 ' and H3 ', but, due to the less and length H2 ' < anvil block 1 thickness W of stage casing diameter D2, therefore cannot forge again after carrying out pressure shoulder according to H2 ', so usually stage casing diameter clout is strengthened to increase its weight when calculating forge weight, segment length > anvil block thickness W in when object is takeed on for pressing, to meet forming requirements, the shortcoming of the method is the increase in forging blank stage casing weight, forging blank weight entirety is caused to increase, there is shortcoming:
(1) consumable material is more;
(2) machining time increases, and production efficiency is lower;
(3) forging and steel ingot weight average increase more, and production process consumption increases more.
summary of the invention
The technical problem to be solved in the present invention is to provide a kind of forming technology being applicable to jackshaft forging, to solve the defect that existing processes expend material is many, machining time is long and production efficiency is low.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
A kind of forming technology being applicable to jackshaft forging, jackshaft forging is three stage structure, be left section in turn, stage casing and right section, left section of size diameter D1 × length H1, stage casing size diameter D2 × length H2, right section of size diameter D3 × length H3, D1 >=D3 > D2, H1 < H2, H3 < H2, concrete steps are as follows
1) steel ingot is swaged into the forging blank of diameter D5, D5=jackshaft forging stage casing weight/stage casing pressure shoulder length degree H2 ", stage casing pressure shoulder length degree H2 " > anvil block thickness W,
2) carry out pressure shoulder operation, follow weight conservation principle, left section of pressure shoulder length degree H1 "=jackshaft forging left end weight/D5, stage casing pressure shoulder length degree H2 ", right section of pressure shoulder length degree H3 "=jackshaft forging right-hand member weight/D5;
3) forging blank stage casing is forged to diameter D2 × length H2, chop to fall pincers handle;
4) die forging is carried out to left section of forging blank, mould comprises anvil and counterdie, counterdie has the die cavity of diameter D1 × length H1, upper anvil comprises two relatively spaced working faces in the same plane, between two working faces, minimum spacing is D2, and be placed in counterdie die cavity by left for forging blank section, stage casing is between two working faces, upper left section of anvil spinning forging blank is to diameter D1 × length H1
Die forging is carried out to right section of forging blank, mould comprises anvil and counterdie, counterdie has the die cavity of diameter D3 × length H3, upper anvil comprises two relatively spaced working faces in the same plane, between two working faces, minimum spacing is D2, be placed in counterdie die cavity by right for forging blank section, stage casing is between two working faces, and upper right section of anvil spinning forging blank is to diameter D3 × length H3.
The above-mentioned forming technology being applicable to jackshaft forging, for the left section die of forging blank, the shape of upper anvil is the rectangle frame that following middle disconnects, and disconnection spacing is D2, and following lower surface is working face.
The above-mentioned forming technology being applicable to jackshaft forging, for the right section die of forging blank, the shape of upper anvil is the rectangle frame that following middle disconnects, and disconnection spacing is D2, and following lower surface is working face.
Stage casing pressure shoulder length degree H2 is determined according to anvil block thickness W ", " > W, object makes anvil block can extrude forging stage casing to H2, namely carries out step 3)." calculate diameter D5; D5 < D1; D5 < D3; namely left section of forging blank all needs to carry out jumping-up process with right section; adopt particular manufacturing craft by left for forging blank section and right section of jumping-up according to jackshaft forging stage casing weight and stage casing pressure shoulder length degree H2, complete jackshaft forging and be shaped.Compare with existing forming technology, without the need to additionally increasing forge weight in forging process of the present invention, consumable material is few, also just reduces machining amount, shortens machining time, improves the efficiency that comes into force, and reduces production process consumption.
accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in more detail:
Fig. 1 is jackshaft forging structural representation.
Fig. 2 cannot carry out forging schematic diagram again for carry out pressure shoulder according to H2 ' after.
Fig. 3 is pressure of the present invention shoulder schematic diagram.
Fig. 4 is the schematic diagram after stage casing is shaped.
Fig. 5 is the schematic diagram of counterdie.
Fig. 6 is the schematic diagram of upper anvil.
Fig. 7 is the top view of Fig. 6.
Fig. 8 is the side view of Fig. 6.
Fig. 9 is for carrying out the schematic diagram of die forging to left section of forging blank (right section).
In figure: 1 anvil block, 2 pincers handles.
Detailed description of the invention
As shown in Fig. 3 to Fig. 9, be applicable to a forming technology for jackshaft forging, jackshaft forging is three stage structure, is left section in turn, stage casing and right section, left section of size diameter D1 × length H1, stage casing size diameter D2 × length H2, right section of size diameter D3 × length H3, D1 >=D3 > D2, H1 < H2, H3 < H2, concrete steps are as follows
1) steel ingot is swaged into the forging blank of diameter D5, D5=jackshaft forging stage casing weight/stage casing pressure shoulder length degree H2 ", stage casing pressure shoulder length degree H2 " > anvil block 1 thickness W,
2) carry out pressure shoulder operation, follow weight conservation principle, left section of pressure shoulder length degree H1 "=jackshaft forging left end weight/D5, stage casing pressure shoulder length degree H2 ", right section of pressure shoulder length degree H3 "=jackshaft forging right-hand member weight/D5;
3) forging blank stage casing is forged to diameter D2 × length H2, chop to fall pincers 2;
4) die forging is carried out to left section of forging blank, mould comprises anvil and counterdie, counterdie has the die cavity of diameter D1 × length H1, upper anvil comprises two relatively spaced working faces in the same plane, between two working faces, minimum spacing is D2, and be placed in counterdie die cavity by left for forging blank section, stage casing is between two working faces, upper left section of anvil spinning forging blank is to diameter D1 × length H1
Die forging is carried out to right section of forging blank, mould comprises anvil and counterdie, counterdie has the die cavity of diameter D3 × length H3, upper anvil comprises two relatively spaced working faces in the same plane, between two working faces, minimum spacing is D2, be placed in counterdie die cavity by right for forging blank section, stage casing is between two working faces, and upper right section of anvil spinning forging blank is to diameter D3 × length H3.
For the left section die of forging blank, the shape of upper anvil is the rectangle frame that following middle disconnects, and disconnection spacing is D2, and following lower surface is working face.
For the right section die of forging blank, the shape of upper anvil is the rectangle frame that following middle disconnects, and disconnection spacing is D2, and following lower surface is working face.
Claims (3)
1. one kind is applicable to the forming technology of jackshaft forging, jackshaft forging is three stage structure, be left section in turn, stage casing and right section, left section of size diameter D1 × length H1, stage casing size diameter D2 × length H2, right section of size diameter D3 × length H3, D1 >=D3 > D2, H1 < H2, H3 < H2, it is characterized in that: concrete steps are as follows
1) steel ingot is swaged into the forging blank of diameter D5, D5=jackshaft forging stage casing weight/stage casing pressure shoulder length degree H2 ", stage casing pressure shoulder length degree H2 " > anvil block thickness W,
2) carry out pressure shoulder operation, follow weight conservation principle, left section of pressure shoulder length degree H1 "=jackshaft forging left end weight/D5, stage casing pressure shoulder length degree H2 ", right section of pressure shoulder length degree H3 "=jackshaft forging right-hand member weight/D5;
3) forging blank stage casing is forged to diameter D2 × length H2, chop to fall pincers handle;
4) die forging is carried out to left section of forging blank, mould comprises anvil and counterdie, counterdie has the die cavity of diameter D1 × length H1, upper anvil comprises two relatively spaced working faces in the same plane, between two working faces, minimum spacing is D2, and be placed in counterdie die cavity by left for forging blank section, stage casing is between two working faces, upper left section of anvil spinning forging blank is to diameter D1 × length H1
Die forging is carried out to right section of forging blank, mould comprises anvil and counterdie, counterdie has the die cavity of diameter D3 × length H3, upper anvil comprises two relatively spaced working faces in the same plane, between two working faces, minimum spacing is D2, be placed in counterdie die cavity by right for forging blank section, stage casing is between two working faces, and upper right section of anvil spinning forging blank is to diameter D3 × length H3.
2. the forming technology being applicable to jackshaft forging according to claim 1, is characterized in that: for the left section die of forging blank, and the shape of upper anvil is the rectangle frame that following middle disconnects, and disconnection spacing is D2, and following lower surface is working face.
3. the forming technology being applicable to jackshaft forging according to claim 1, is characterized in that: for the right section die of forging blank, and the shape of upper anvil is the rectangle frame that following middle disconnects, and disconnection spacing is D2, and following lower surface is working face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410617294.2A CN104368745B (en) | 2014-11-06 | 2014-11-06 | A kind of forming technology being applicable to jackshaft forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410617294.2A CN104368745B (en) | 2014-11-06 | 2014-11-06 | A kind of forming technology being applicable to jackshaft forging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104368745A true CN104368745A (en) | 2015-02-25 |
| CN104368745B CN104368745B (en) | 2016-03-30 |
Family
ID=52548086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410617294.2A Active CN104368745B (en) | 2014-11-06 | 2014-11-06 | A kind of forming technology being applicable to jackshaft forging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104368745B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141067A (en) * | 2016-07-11 | 2016-11-23 | 宝钢特钢有限公司 | A kind of production method of dumb-bell shape Shaft of Titanium Alloy forging |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1486247A1 (en) * | 1987-07-20 | 1989-06-15 | Valerij A Tyurin | Method of forging stepped-diameter shafts ,particularly, with recess |
| CN101111329A (en) * | 2005-01-31 | 2008-01-23 | 昭和电工株式会社 | Upsetting method and upsetting apparatus |
| KR100810103B1 (en) * | 2006-09-20 | 2008-03-06 | 맹혁재 | Forging method of decreasing diameter type product |
| CN102039364A (en) * | 2010-11-12 | 2011-05-04 | 无锡宏达重型锻压有限公司 | Shaping process of fan shaft |
| CN102343413A (en) * | 2011-07-21 | 2012-02-08 | 南京迪威尔重型锻造股份有限公司 | Stepped shaft forging method in free forging |
| CN103920846A (en) * | 2014-04-14 | 2014-07-16 | 攀钢集团江油长城特殊钢有限公司 | Radial forging method for high temperature alloy step shaft |
-
2014
- 2014-11-06 CN CN201410617294.2A patent/CN104368745B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1486247A1 (en) * | 1987-07-20 | 1989-06-15 | Valerij A Tyurin | Method of forging stepped-diameter shafts ,particularly, with recess |
| CN101111329A (en) * | 2005-01-31 | 2008-01-23 | 昭和电工株式会社 | Upsetting method and upsetting apparatus |
| KR100810103B1 (en) * | 2006-09-20 | 2008-03-06 | 맹혁재 | Forging method of decreasing diameter type product |
| CN102039364A (en) * | 2010-11-12 | 2011-05-04 | 无锡宏达重型锻压有限公司 | Shaping process of fan shaft |
| CN102343413A (en) * | 2011-07-21 | 2012-02-08 | 南京迪威尔重型锻造股份有限公司 | Stepped shaft forging method in free forging |
| CN103920846A (en) * | 2014-04-14 | 2014-07-16 | 攀钢集团江油长城特殊钢有限公司 | Radial forging method for high temperature alloy step shaft |
Non-Patent Citations (1)
| Title |
|---|
| 张鹏等: "长轴类大锻件自由锻造工艺研究", 《锻压技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141067A (en) * | 2016-07-11 | 2016-11-23 | 宝钢特钢有限公司 | A kind of production method of dumb-bell shape Shaft of Titanium Alloy forging |
| CN106141067B (en) * | 2016-07-11 | 2018-12-14 | 宝钢特钢有限公司 | A kind of production method of dumb-bell shape Shaft of Titanium Alloy forging |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104368745B (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102240772B (en) | Forming method of single elbow crankshaft forgings | |
| CN102527897A (en) | Forging method for thin-walled step short sleeve type main shaft flange of water turbine | |
| CN102756063B (en) | Manufacturing method of blade type product die forging clot | |
| CN104139279B (en) | The manufacturing process of interior trapezoidal grooved ring shape part | |
| CN102513482B (en) | Forging and forming method of integral hinge beam | |
| CN104438997A (en) | Free forging process for large cross forged pieces | |
| CN102284670A (en) | Heavy truck balance shaft forging method | |
| CN102847862A (en) | Low-pressure composite forging process for bearing ring | |
| CN104368745B (en) | A kind of forming technology being applicable to jackshaft forging | |
| CN107774853A (en) | A kind of method of continuous casting steel billet forging high-quality plastic mould steel forgings | |
| CN102717014B (en) | Method for freely forging casing elevator for petroleum drilling and production | |
| CN102989989A (en) | Forging process of heavy truck steering knuckle | |
| CN104439028A (en) | Forging process for forge pieces like stepped shafts | |
| CN204657375U (en) | Cold extrusion combined die | |
| CN203304422U (en) | Improved casting wheel mold | |
| CN204524133U (en) | Concave surface fine forge piece mould structure in the middle of automobile output shaft | |
| CN201644691U (en) | Composite forming die mold of complicated axial forging with shaft shoulder and flange plate | |
| CN103658500A (en) | Precise warm forging one-time forming new technology of straight tooth cylinder inner gear | |
| CN104368735B (en) | Frock for heavy mine car hub for vehicle wheel blank forging | |
| CN102896261A (en) | Method for forging forming of large-diameter ring | |
| CN102974736A (en) | Positioning structure for turbine blade blank | |
| CN103658485A (en) | Valve core forging die | |
| CN201960071U (en) | Forming die for forging shaft type forged pieces | |
| CN202343703U (en) | Punching die | |
| CN205200433U (en) | Modulus is not less than 6 straight -teeth gear finish forge hot extrusion formation mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Forming technology applicable to intermediate shaft type forge piece Effective date of registration: 20190227 Granted publication date: 20160330 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: 2019990000162 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210304 Granted publication date: 20160330 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: 2019990000162 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A forming process for intermediate shaft forgings Effective date of registration: 20210304 Granted publication date: 20160330 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: Y2021990000216 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230320 Granted publication date: 20160330 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: Y2021990000216 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Forming Process Suitable for Intermediate Shaft Forgings Effective date of registration: 20230323 Granted publication date: 20160330 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: Y2023980035948 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |