CN113290116A - Opposite-wheel spinning manufacturing process of aluminum skirt special for rocket - Google Patents
Opposite-wheel spinning manufacturing process of aluminum skirt special for rocket Download PDFInfo
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- CN113290116A CN113290116A CN202110598494.8A CN202110598494A CN113290116A CN 113290116 A CN113290116 A CN 113290116A CN 202110598494 A CN202110598494 A CN 202110598494A CN 113290116 A CN113290116 A CN 113290116A
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- blank
- rotating wheel
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- heating device
- wheel
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- 238000009987 spinning Methods 0.000 title claims abstract description 48
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims description 8
- 238000003754 machining Methods 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000003466 welding Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
Abstract
A spinning manufacturing process of a pair of wheels of an aluminum skirt special for a rocket comprises the steps of clamping a cylindrical blank on a main shaft of a spinning machine, and moving inner spinning wheels of four pairs of spinning wheel sets to positions close to a blank clamping section; then the external rotating wheel is moved to the position of the outer side of the blank, which is opposite to the internal rotating wheel; then, the heating device is operated to the position to be subjected to initial spinning, and is positioned at a short distance in front of the outward spinning wheel by taking the rotation direction of the main shaft as a reference, and the position does not interfere with the outward spinning wheel and does not heat the outward spinning wheel; starting the main shaft to drive the blank to rotate, starting a heating device to heat the position to be spun and feed a spinning wheel along the radial direction of the blank, and then carrying out multi-pass spinning from bottom to top along the axial direction of the blank while heating until the shape of a part is processed; finally, the four pairs of rotating wheel sets and the heating device are removed, and the aluminum skirt is taken out; the invention has the advantages of small forming load, high precision, small residual stress of the workpiece, high material utilization rate, high processing efficiency and easy control of forming quality.
Description
Technical Field
The invention relates to the technical field of plastic forming of large-diameter variable-wall-thickness special-shaped cylindrical parts, in particular to a pair-wheel spinning manufacturing process of an aluminum skirt special for a rocket.
Background
The special-shaped cylindrical aluminum skirt special for the rocket has the characteristics of large diameter, variable wall thickness, high precision and the like, and is usually processed by adopting two methods of roll welding and die spinning. Longitudinal welding seams exist in the roll welding process, so that the tangential performance of the cylindrical part is reduced, the thickness of the plate must be increased to ensure the required strength, the dead weight of the rocket is increased, and the carrying capacity of the rocket is not favorably improved; when the large-diameter cylindrical part is processed by adopting the die spinning, the problems of difficult core die manufacturing and tooling, uneven deformation of the inner surface and the outer surface of a workpiece and the like exist. Therefore, the traditional method for processing the large-diameter cylindrical part cannot meet the requirements of variable wall thickness, high performance, high precision and light weight, the processing of the aluminum skirt of the large-diameter special-shaped cylindrical part becomes an important technical problem to be solved urgently on the development of large carrier rockets, and a novel manufacturing process of the large-diameter variable-wall-thickness special-shaped cylindrical part is urgently needed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a pair-wheel spinning manufacturing process of an aluminum skirt special for a rocket, which has the advantages of small forming load, high precision, small residual stress of workpieces, high material utilization rate, high processing efficiency and easiness in control of forming quality.
In order to achieve the purpose, the invention adopts the technical scheme that:
a pair wheel spinning manufacturing process of an aluminum skirt special for a rocket comprises the following steps:
1) clamping a cylindrical blank 1 on a main shaft of a spinning machine, and moving an inner spinning wheel in four pairs of spinning wheel sets to a position close to a clamping section of the blank 1, wherein the inner spinning wheel is close to the inner surface of the blank 1 but not in contact with the inner surface;
2) the outer rotating wheel in the four pairs of rotating wheel sets is moved to the position, opposite to the inner rotating wheel, of the outer side of the blank 1, and is close to the outer surface of the blank 1 but not in contact with the outer surface;
3) more than one heating device is operated to the position to be subjected to initial spinning, and the heating device is positioned at a short distance in front of the outward rotating wheel by taking the rotation direction of the main shaft as a reference, and the position does not interfere with the outward rotating wheel and does not heat the outward rotating wheel;
4) starting a main shaft to drive the blank 1 to rotate, starting a heating device to heat a position to be spun and feed a spinning wheel set along the radial direction of the blank 1, and then carrying out multi-pass spinning from bottom to top along the axial direction of the blank 1 while heating until the shape of a part is processed;
5) removing the four pairs of rotating wheel sets and the heating device, and taking out the aluminum skirt 12;
6) machining according to the size of the part to remove an unprocessed area in the clamping process, so as to obtain the aluminum skirt with the size meeting the requirement of a drawing;
7) the aluminum skirt is quenched and aged to reach the specified mechanical performance index.
According to the opposite wheel spinning manufacturing process of the aluminum skirt special for the rocket, the middle diameter of the cylindrical blank 1 is kept unchanged in the manufacturing process, but the outer diameter is reduced, and the inner diameter is increased according to the requirements of a drawing; or the outer diameter of the cylindrical blank 1 is kept unchanged, but the inner diameter is increased according to the requirements of the drawing.
The invention has the following beneficial effects:
compared with the traditional roll welding processing technology, the aluminum skirt processed by the invention is integrally formed, the residual stress of a workpiece is small, the material utilization rate is high, the mechanical property is better, and the light aluminum skirt is beneficial to improving the carrying capacity of the rocket.
Compared with the traditional die spinning process, the invention has the advantages of high processing efficiency, easy control of forming quality, no need of core die manufacture, simpler required tooling, reduced cost and higher economic benefit.
Drawings
Fig. 1 is a schematic diagram of the working principle of embodiment 1 of the present invention.
Fig. 2 is a sectional view of fig. 1.
Fig. 3 is a schematic view of the aluminum skirt 12 obtained in examples 1 and 2.
Fig. 4 is a schematic diagram of the working principle of embodiment 2 of the present invention.
Fig. 5 is a cross-sectional view of fig. 4.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Embodiment 1, referring to fig. 1, 2 and 3, a pair-wheel spinning manufacturing process of an aluminum skirt special for a rocket, in which the inner diameter of a cylindrical blank 1 is kept unchanged, but the outer diameter is reduced and the inner diameter is increased according to the requirements of the drawing, comprises the following steps:
1) clamping a cylindrical blank 1 on a main shaft of a spinning machine, and moving a first internal rotating wheel 2, a second internal rotating wheel 3, a third internal rotating wheel 4 and a fourth internal rotating wheel 5 in four pairs of rotating wheel groups to positions close to the clamping section of the blank 1, wherein the positions are close to the inner surface of the blank 1 but are not in contact with the inner surface;
2) a first external rotating wheel 6, a second external rotating wheel 7, a third external rotating wheel 8 and a fourth external rotating wheel 9 in the four pairs of rotating wheel groups are moved to the positions, opposite to the first internal rotating wheel 2, the second internal rotating wheel 3, the third internal rotating wheel 4 and the fourth internal rotating wheel 5, of the outer side of the blank 1 and close to the outer surface of the blank 1 but are not in contact with the outer surface of the blank 1;
3) the first heating device 10 and the second heating device 11 are operated to the position to be subjected to initial spinning, and the first heating device 10 and the second heating device 11 are respectively positioned at a small distance in front of the first outward rotating wheel 6 and the third outward rotating wheel 8 by taking the rotation direction of the main shaft as a reference, and do not interfere with the outward rotating wheels and do not heat the outward rotating wheels;
4) starting a main shaft to drive a blank 1 to rotate, starting a first heating device 10 and a second heating device 11 to heat a position to be spun and feed two pairs of spinning wheel sets along the radial direction of the blank 1, and then performing multi-pass spinning from bottom to top along the axial direction of the blank 1 while heating until the shape of a part is processed;
5) removing the four pairs of rotating wheel sets and the heating device, and taking out the aluminum skirt 12;
6) machining according to the size of the part to remove an unprocessed area in the clamping process, so as to obtain the aluminum skirt with the size meeting the requirement of a drawing;
7) the aluminum skirt is quenched and aged to reach the specified mechanical performance index.
1) clamping a cylindrical blank 1 on a main shaft of a spinning machine, and moving a first internal rotating wheel 2, a second internal rotating wheel 3, a third internal rotating wheel 4 and a fourth internal rotating wheel 5 in four pairs of rotating wheel groups to positions close to the clamping section of the blank 1, wherein the positions are close to the inner surface of the blank 1 but are not in contact with the inner surface;
2) the first external rotating roller 6, the second external rotating roller 7, the third external rotating roller 8 and the fourth external rotating roller 9 in the four pairs of rotating wheel groups are operated to the positions, opposite to the first internal rotating wheel 2, the second internal rotating wheel 3, the third internal rotating wheel 4 and the fourth internal rotating wheel 5, of the outer side of the blank 1, and are close to the outer surface of the blank 1 but not in contact with the outer surface of the blank 1;
3) the first heating device 10 and the second heating device 11 are operated to the position to be subjected to initial spinning, and the first heating device 10 and the second heating device 11 are respectively positioned at a small distance in front of the first outward rotating wheel 6 and the third outward rotating wheel 8 by taking the rotation direction of the main shaft as a reference, and do not interfere with the outward rotating wheels and do not heat the outward rotating wheels;
4) starting a main shaft to drive a blank 1 to rotate, starting a first heating device 10 and a second heating device 11 to heat a position to be spun and feed two pairs of spinning wheel sets along the radial direction of the blank 1, and then performing multi-pass spinning from bottom to top along the axial direction of the blank 1 while heating until the shape of a part is processed;
5) removing the four pairs of rotating wheel sets and the heating device, and taking out the aluminum skirt 12;
6) machining according to the size of the part to remove an unprocessed area in the clamping process, so as to obtain the aluminum skirt with the size meeting the requirement of a drawing;
7) the aluminum skirt is quenched and aged to reach the specified mechanical performance index.
Claims (3)
1. A pair wheel spinning manufacturing process of an aluminum skirt special for a rocket is characterized by comprising the following steps:
1) clamping a cylindrical blank (1) on a main shaft of a spinning machine, and moving an inner spinning wheel in four pairs of spinning wheel sets to a position close to a clamping section of the blank (1) and close to the inner surface of the blank (1) without contact;
2) the outer rotating wheel in the four pairs of rotating wheel sets is moved to the position, opposite to the inner rotating wheel, of the outer side of the blank (1), and is close to the outer surface of the blank (1) but not in contact with the outer surface;
3) more than one heating device is operated to the position to be subjected to initial spinning, and the heating device is positioned at a short distance in front of the outward rotating wheel by taking the rotation direction of the main shaft as a reference, and the position does not interfere with the outward rotating wheel and does not heat the outward rotating wheel;
4) starting a main shaft to drive the blank (1) to rotate, starting a heating device to heat a position to be spun and feed a rotating wheel set along the radial direction of the blank (1), and then performing multi-pass spinning from bottom to top along the axial direction of the blank (1) while heating until the shape of a part is processed;
5) removing the four pairs of rotating wheel sets and the heating device, and taking out the aluminum skirt (12);
6) machining according to the size of the part to remove an unprocessed area in the clamping process, so as to obtain the aluminum skirt with the size meeting the requirement of a drawing;
7) the aluminum skirt is quenched and aged to reach the specified mechanical performance index.
2. The pair-wheel spinning manufacturing process of the aluminum skirt special for the rocket as claimed in claim 1, wherein: the middle diameter of the cylindrical blank (1) is kept unchanged in the manufacturing process, but the outer diameter is reduced, and the inner diameter is increased according to the requirements of a drawing; or the outer diameter of the cylindrical blank (1) is kept unchanged, but the inner diameter is increased according to the requirements of the drawing.
3. The pair-wheel spinning manufacturing process of the aluminum skirt special for the rocket as claimed in claim 1, characterized by comprising the following steps:
1) clamping a cylindrical blank (1) on a main shaft of a spinning machine, and moving a first internal rotating wheel (2), a second internal rotating wheel (3), a third internal rotating wheel (4) and a fourth internal rotating wheel (5) in four pairs of rotating wheel groups to positions close to the clamping section of the blank (1) and close to the inner surface of the blank (1) but not in contact with the inner surface of the blank (1);
2) a first external rotating wheel (6), a second external rotating wheel (7), a third external rotating wheel (8) and a fourth external rotating wheel (9) in the four pairs of rotating wheel groups are moved to the positions, opposite to the first internal rotating wheel (2), the second internal rotating wheel (3), the third internal rotating wheel (4) and the fourth internal rotating wheel (5), of the outer side of the blank (1) and close to the outer surface of the blank (1) but are not in contact with the outer surface of the blank (1);
3) the first heating device (10) and the second heating device (11) are operated to the position to be subjected to initial spinning, the first heating device (10) and the second heating device (11) are respectively positioned at a small distance in front of the first outward rotating wheel (6) and the third outward rotating wheel (8) by taking the rotation direction of the main shaft as a reference, and the positions do not interfere with the outward rotating wheels and do not heat the outward rotating wheels;
4) starting a main shaft to drive a blank (1) to rotate, then starting a first heating device (10) and a second heating device (11) to heat a position to be spun, enabling two pairs of spinning wheel sets to feed along the radial direction of the blank (1), and then carrying out multi-pass spinning from bottom to top along the axial direction of the blank (1) while heating until the shape of a part is processed;
5) removing the four pairs of rotating wheel sets and the heating device, and taking out the aluminum skirt (12);
6) machining according to the size of the part to remove an unprocessed area in the clamping process, so as to obtain the aluminum skirt with the size meeting the requirement of a drawing;
7) the aluminum skirt is quenched and aged to reach the specified mechanical performance index.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110598494.8A CN113290116A (en) | 2021-05-31 | 2021-05-31 | Opposite-wheel spinning manufacturing process of aluminum skirt special for rocket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110598494.8A CN113290116A (en) | 2021-05-31 | 2021-05-31 | Opposite-wheel spinning manufacturing process of aluminum skirt special for rocket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113290116A true CN113290116A (en) | 2021-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110598494.8A Pending CN113290116A (en) | 2021-05-31 | 2021-05-31 | Opposite-wheel spinning manufacturing process of aluminum skirt special for rocket |
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| Country | Link |
|---|---|
| CN (1) | CN113290116A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD219126A1 (en) * | 1983-10-24 | 1985-02-27 | Richard Kaschig | PROCESS FOR INTRODUCING SLIM INCUBATORS |
| CN103691789A (en) * | 2013-12-06 | 2014-04-02 | 天津重型装备工程研究有限公司 | Method for forming end enclosure of large-sized thick-wall cylindrical blank in hot spinning manner |
| CN103736807A (en) * | 2014-01-03 | 2014-04-23 | 西安航天动力机械厂 | Paired-wheel spinning machining method for roll-welded cylindrical part |
| CN104175072A (en) * | 2014-07-29 | 2014-12-03 | 西安交通大学 | Opposite roller spinning and deformation heat treatment combined manufacturing process for large bellows |
| CN108463296A (en) * | 2016-01-14 | 2018-08-28 | 都美工业株式会社 | Spinning apparatus and spin-on process |
| CN110090883A (en) * | 2019-06-13 | 2019-08-06 | 哈尔滨工业大学 | A kind of horizontal Opposite roller spinning device for molding large thin-walled back cover structure |
-
2021
- 2021-05-31 CN CN202110598494.8A patent/CN113290116A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD219126A1 (en) * | 1983-10-24 | 1985-02-27 | Richard Kaschig | PROCESS FOR INTRODUCING SLIM INCUBATORS |
| CN103691789A (en) * | 2013-12-06 | 2014-04-02 | 天津重型装备工程研究有限公司 | Method for forming end enclosure of large-sized thick-wall cylindrical blank in hot spinning manner |
| CN103736807A (en) * | 2014-01-03 | 2014-04-23 | 西安航天动力机械厂 | Paired-wheel spinning machining method for roll-welded cylindrical part |
| CN104175072A (en) * | 2014-07-29 | 2014-12-03 | 西安交通大学 | Opposite roller spinning and deformation heat treatment combined manufacturing process for large bellows |
| CN108463296A (en) * | 2016-01-14 | 2018-08-28 | 都美工业株式会社 | Spinning apparatus and spin-on process |
| CN110090883A (en) * | 2019-06-13 | 2019-08-06 | 哈尔滨工业大学 | A kind of horizontal Opposite roller spinning device for molding large thin-walled back cover structure |
Non-Patent Citations (1)
| Title |
|---|
| 张大伟等: "大型筒形件对轮旋压设备及应用进展", 《中国机械工程》 * |
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Application publication date: 20210824 |