CN201519735U - roll forging die enabling support arm to achieve bending on roll forging machine - Google Patents
roll forging die enabling support arm to achieve bending on roll forging machine Download PDFInfo
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- CN201519735U CN201519735U CN 200920154109 CN200920154109U CN201519735U CN 201519735 U CN201519735 U CN 201519735U CN 200920154109 CN200920154109 CN 200920154109 CN 200920154109 U CN200920154109 U CN 200920154109U CN 201519735 U CN201519735 U CN 201519735U
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- roll forging
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Abstract
The utility model provides a roll forging die which achieves the process step of bending during the roll forging process. The roll forging die comprises four roll forging dies, wherein the fan-shaped wrap angle of each secondary roll forging die is theta, and theta=115 degrees, the first roll forging is flattening, namely round blank is rolled to be ellipsoidal blank, the second roll forging is to roll circle, namely, the flattening portion of the first roll forging is rolled to circle, the third roll forging is flattening, namely the rolling circle portion of the second roll forging is further flattened, when the fourth roll forging is rolled to circle, the non-deformed portion is rolled bending. The roll forging die is characterized in that the bending process step is achieved in the fourth step of the roll forging process, bending is achieved during the roll forging, the technical process of forging is shortened, bending devices are reduced, and forging cost is lowered.
Description
Technical field
The application relates to a kind of roll forging mould, especially a kind ofly is applied in the fan-shaped roller forging mould roll forging field, that be used for aluminum alloy forge piece.
Background technology
Along with developing rapidly of forging industry, roll forging is a kind of new technique for forging that grows up in recent decades.Roll forging is the extensional process of blank.Blank, makes except that sub-fraction metal lateral flow blank width slightly increases after forge rolling die compression in short transverse, and most of compressed metal flows along the length direction of blank.Blank cross-sectional area by roll forging reduces, and length increases.By the characteristics of roll forging deformation as seen, it is suitable for reducing the blank cross section, as the pulling of rod member.Roll forging is a progressively continuous deformation process.During distortion, mould only contacts with the part of blank, and required deformation force is less.Roll forging is the deformation process of static pressure, and impact, vibration, noise pollution are little, and working condition is good.
Roll forging is a kind of novel process in forging, and belongs to revolution compression forming class.It is main forging process that roll forging is used for extensional more, and except that for the die forging base, to the major axis class, some forging can be realized whole shaping in the plate class.Therefore in commercial Application, roll forging is divided into base and roll forging two classes, and forging roll is the special equipment that designs, makes for roll-forging process specially.This device structure is simple, and is easy to operate, if be equipped with roll forging manipulator and microcomputer control, can realize automated production, so it has higher technology economy advantage than die forging.Every complex geometry, the forging part that thickness difference is bigger as forging such as connecting rod, front axle, crawler belts, can adopt finish roll forging technology just, prepares the manufacturing process that the forging equipment of little ability carries out shaping again.Production line by this technology is formed shows in practice, the production line small investment, and the production efficiency height, forging quality is good, and technical economic benefit is very remarkable.
The prior art of roller forging sheet stamping general branch two passages or four-pass roll forging at present mainly is that the cross-sectional area that changes blank makes the pulling of roll forging part, and its technical process is roll forging → bending → die forging process.
Along with the development of roll-forging process, the shape of roll forging part becomes increasingly complex, and the pair roller forging mould requires also more and more higher.The bending of roll forging part realizes that on forging roll this not only shortens the Forging Technology process, reduces bending apparatus, and reduces greatly and forge financial cost.
The utility model content
The utility model provides a kind of support arm to realize crooked roll forging mould on forging roll, and it can make crooked work step realize in the roll forging process.
In order to reach the purpose that solves the problems of the technologies described above, the technical solution of the utility model is, a kind of support arm is realized crooked roll forging mould on forging roll, it comprises roll forging fan-shaped mould, following roll forging fan-shaped mould, the mould hall that it is characterized in that the 4th road top roll forging mould, lower roll forging mould bending section is asymmetric, and the bending section mould hall of top roll forging mould is more shallow, and the mould hall of lower roll forging mould bending section is darker, the distance of the centre-to-centre spacing die parting line of counterdie hall is d, and the section angle of counterdie hall is δ.
In the utility model, also have following technical characterictic: its curved end is respectively α and β apart from the angle of the end of nipping, and its angle [alpha] is 32 °～35 °, and β is 45 °～49 °.The center line of its bending section mold cavity offsets downward apart from d, and the span of its offset distance d is between 14mm～18mm, and δ=54 °, the fan-shaped cornerite of upper and lower fanlike die block of its roll forging mould is θ, its angle is 115 °.
This use is novel compared with prior art to have the following advantages and good effect: the mould hall structure partial size of newly-designed roll forging mould is asymmetric, counterdie mould hall is darker, the material that helps the roll forging part in the roll forging process flows downward, and is full of the counterdie hall, and bending is achieved.Bending is carried out on forging roll, helps shortening technical process, reduces manpower and materials, increases work efficiency, and saves financial cost.
Description of drawings
Fig. 1 is roll forging work step figure;
Fig. 2 is that the front end face of the first road roll forging mould is forged the location drawing that roller line place fits two;
Fig. 3 is that the front end face of the second road roll forging mould is forged the location drawing that roller line place fits two;
Fig. 4 is that the front end face of the 3rd road roll forging mould is forged the location drawing that roller line place fits two;
Fig. 5 is that the front end face of the 4th road roll forging mould is forged the location drawing that roller line place fits two;
Fig. 6 is that label is 5 the E-E cross sectional view of part before bending among Fig. 1;
Fig. 7 is that label is 5 the E-E cross sectional view of part after bending among Fig. 1;
The specific embodiment
Be described in detail this use is novel below in conjunction with drawings and Examples.
Fig. 1 is roll forging work step figure, and wherein label 1 is roll forging first road; Label 2 is roll forging second road; Label 3 is roll forging the 3rd road; Label 4 is roll forging the 4th road.Label 5 is the part before the roll forging bending, and label 6 is a part crooked in the 4th road.The first road roll forging among Fig. 1, the second road roll forging, the 3rd road roll forging all exist in general preforming roll forging, promptly first road flattens, the second road roller is round, the 3rd road flattens is very common roll forging method, invention part of the present utility model is that the 4th road roller carries out the roll forging bending in the time of round, save crooked work step like this in whole forging process, this helps accelerating forging process and reduces expenses.
Fig. 2 is the first road roll forging mould of roll forging, and its fan-shaped wrap angle is 115 °, and label 7 and 8 is represented roll forging patrix and roll forging counterdie respectively, and label 7 and 8 also is like this in other figure.A '
1And A
1Be the thrust ring of the first road forge rolling die, cooperate, be axially fixed on the forging roll with the seam of forging roll.B '
1And B
1Be the scrobicular ring of the first road roll forging mould, it respectively with the seam A ' of the second road forge rolling die
2And A
2Cooperate, the second road forge rolling die and the first road forge rolling die are fixed on the forging roll.
Fig. 3 is the second road roll forging mould of roll forging, and its fan-shaped wrap angle is 115 °, A '
2And A
2Be the thrust ring of the second road forge rolling die, cooperate, be axially fixed on the forging roll with the seam of the first road forge rolling die.B
2' and B
2Be the scrobicular ring of the second road roll forging mould, it respectively with the seam A ' of the 3rd road forge rolling die
3And A
3Cooperate, the 3rd road forge rolling die and the second road forge rolling die are fixed on the forging roll.
Fig. 4 is the 3rd road roll forging mould of roll forging, and its fan-shaped wrap angle is 115 °, A '
3And A
3Be the thrust ring of the 3rd road forge rolling die, cooperate, be axially fixed on the forging roll with the seam of the second road forge rolling die.B
3' and B
3Be the scrobicular ring of the 3rd road roll forging mould, it respectively with the seam A ' of the 4th road forge rolling die
4And A
4Cooperate, the 4th road forge rolling die and the 3rd road forge rolling die are fixed on the forging roll.
Fig. 5 is the 4th road roll forging mould of roll forging, and its fan-shaped wrap angle is 115 °, A '
4And A
4Be the thrust ring of the 4th road forge rolling die, cooperate, be axially fixed on the forging roll with the seam of the 3rd road forge rolling die.B '
4And B
4Be the scrobicular ring of the 4th road roll forging mould, it is the thrust ring cooperation of forging roll respectively, and the 4th road forge rolling die and first, second and third road forge rolling die are fixed on the forging roll.The E-E place is the mold cavity of bending section among Fig. 5, and its angle apart from the end of nipping is defined as α and β respectively, and its angle [alpha] is 32 °～35 °, and β is 45 °～49 °.
Fig. 6 is the pairing roll forging mold sections of the part of label 5 among a Fig. 1 E-E view, and its upper and lower die cavity is symmetry all.
Fig. 7 is the pairing roll forging mold sections of the part of label 6 among a Fig. 1 E-E view, and its upper and lower die cavity is all asymmetric.D is a diameter among the figure, and is identical with D among Fig. 6, and promptly label is that 6 partial cross section thickness does not change in the roll forging process, and just center line herein offsets downward apart from d, and its span is between 14mm～18mm, and δ=54 °.Invention part of the present utility model is that part does not deform, and can be crooked simultaneously in the roll forging process.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every for not breaking away from the technical solutions of the utility model content,, still belong in the scope of technical solutions of the utility model any simple modification, equivalent variations and remodeling that above embodiment did according to technical spirit of the present utility model.
Claims (4)
1. a support arm is realized crooked roll forging mould on forging roll, it comprises roll forging fan-shaped mould, following roll forging fan-shaped mould, the mould hall that it is characterized in that the 4th road top roll forging mould, lower roll forging mould bending section is asymmetric, the bending section mould hall of top roll forging mould is more shallow, the mould hall of lower roll forging mould bending section is darker, the distance of the centre-to-centre spacing die parting line of counterdie hall is d, and the section angle of counterdie hall is δ.
2. support arm as claimed in claim 1 is realized crooked roll forging mould on forging roll, it is characterized in that the bending section mold cavity is respectively α and β apart from the angle of the end of nipping, and its angle [alpha] is 32 °～35 °, and β is 45 °～49 °.
3. support arm as claimed in claim 1 or 2 is realized crooked roll forging mould on forging roll, its 4th road roll forging counterdie offset distance d span is between 14mm～18mm, and δ=54 °.
4. support arm as claimed in claim 3 is realized crooked roll forging mould on forging roll, the fan-shaped cornerite that it is characterized in that the roll forging fan-shaped mould is θ, and its angle is 115 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920154109 CN201519735U (en) | 2009-05-12 | 2009-05-12 | roll forging die enabling support arm to achieve bending on roll forging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920154109 CN201519735U (en) | 2009-05-12 | 2009-05-12 | roll forging die enabling support arm to achieve bending on roll forging machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201519735U true CN201519735U (en) | 2010-07-07 |
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ID=42505913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920154109 Expired - Fee Related CN201519735U (en) | 2009-05-12 | 2009-05-12 | roll forging die enabling support arm to achieve bending on roll forging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201519735U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424510A (en) * | 2016-10-21 | 2017-02-22 | 北京机电研究所 | Design method for wagon axle roll forging forming roll forging die |
| CN106623739A (en) * | 2016-10-21 | 2017-05-10 | 北京机电研究所 | Railway truck shaft forming roll forging process |
| CN108080547A (en) * | 2017-12-15 | 2018-05-29 | 清华大学 | A kind of long-axis forging prefabricated blank method and device |
-
2009
- 2009-05-12 CN CN 200920154109 patent/CN201519735U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424510A (en) * | 2016-10-21 | 2017-02-22 | 北京机电研究所 | Design method for wagon axle roll forging forming roll forging die |
| CN106623739A (en) * | 2016-10-21 | 2017-05-10 | 北京机电研究所 | Railway truck shaft forming roll forging process |
| CN106623739B (en) * | 2016-10-21 | 2018-06-05 | 北京机电研究所 | Lorry axle roll forging technique |
| CN106424510B (en) * | 2016-10-21 | 2019-04-26 | 北京机电研究所有限公司 | The design method of lorry axle roll forging roll forging mold |
| CN108080547A (en) * | 2017-12-15 | 2018-05-29 | 清华大学 | A kind of long-axis forging prefabricated blank method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20110512 |