CN111004906A - Quenching anti-deformation tool and forming method for large-diameter thin-wall spherical top cover - Google Patents
Quenching anti-deformation tool and forming method for large-diameter thin-wall spherical top cover Download PDFInfo
- Publication number
- CN111004906A CN111004906A CN201911384333.8A CN201911384333A CN111004906A CN 111004906 A CN111004906 A CN 111004906A CN 201911384333 A CN201911384333 A CN 201911384333A CN 111004906 A CN111004906 A CN 111004906A
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- Prior art keywords
- top cover
- spherical top
- quenching
- spinning
- fixed angle
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
Abstract
The invention provides a quenching anti-deformation tool and a forming method for a large-diameter thin-wall spherical top cover, which comprises an aluminum plate; the outer edge of the aluminum plate is provided with a steel plate; a circular water outlet is formed in the center of the aluminum plate; the edge of the water outlet is provided with a plurality of fixed angle pieces for fixing the large-end molded surface of the spherical top cover, and the fixed angle pieces are symmetrically arranged by taking the circle center of the water outlet as the center. The quenching deformation-preventing tool and the forming method for the large-diameter thin-wall spherical top cover are used in a matched mode, so that the spinning forming quality is improved, the clamping force and the distribution of deformation areas are ensured, and the product quality is finally improved.
Description
Technical Field
The invention belongs to the high-end manufacturing field, and particularly relates to a quenching anti-deformation tool and a forming method for a large-diameter thin-wall spherical top cover.
Background
The spherical top cover of the manned rocket of the new generation is connected with the conical bottom ring to form a conical bottom storage tank. The inner profile of the spherical top cover is a spherical surface, and the small end of the spherical top cover is connected with the pressure accumulator, so that the requirement on the profile precision is high, otherwise, the assembly connection with the pressure accumulator is seriously influenced, meanwhile, the required strength meets the requirement, the subsequent heat treatment is carried out, and the quenching deformation control difficulty is high.
Under the prior art, according to the requirements of dimensional accuracy and strength of a spherical top cover, a spinning forming process is generally adopted, the processes comprise blanking spinning, quenching machine processing and the like, and the problems that in the processing process, due to the fact that the diameter is large, the spinning thinning rate is difficult to control accurately and gaps of all parts are difficult to calculate accurately, a certain deviation exists in a molded surface, and the film sticking effect is poor. Meanwhile, the spherical top cover is usually bound by aluminum wires before quenching and is impacted by self-weight water entering, and the large opening section is deformed greatly due to the small size of the water outlet of the small-end closed end of the spherical top cover, so that the final size can hardly meet the quality requirement.
Disclosure of Invention
In view of the above, the invention aims to provide a quenching deformation-preventing tool and a forming method for a large-diameter thin-wall spherical top cover, which are used in cooperation with the quenching deformation-preventing tool and the forming method, so that the spinning forming quality is improved, the clamping force and the distribution of deformation areas are ensured, and the product quality is finally improved.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a quenching anti-deformation tool for a large-diameter thin-wall spherical top cover comprises an aluminum plate; the outer edge of the aluminum plate is provided with a steel plate; a circular water outlet is formed in the center of the aluminum plate; the edge of the water outlet is provided with a plurality of fixed angle pieces for fixing the large-end molded surface of the spherical top cover, and the fixed angle pieces are symmetrically arranged by taking the circle center of the water outlet as the center.
Furthermore, a notch is formed in the fixed corner piece, and the bolt penetrates through the notch to be fixedly connected with the aluminum plate.
Furthermore, eight fixed angle pieces are arranged, and every two of the eight fixed angle pieces are symmetrically arranged by taking the circle center of the water outlet as the center.
Further, the aluminum plate is rectangular in shape.
Further, the aluminum plate is a 2219 aluminum alloy aluminum plate, and the fixed angle pieces are 2219 aluminum alloy angle pieces.
Further, the diameter of the water outlet is 1700 mm.
A forming method of a large-diameter thin-wall spherical top cover uses the quenching anti-deformation tool of the large-diameter thin-wall spherical top cover:
step 1: spinning and forming a spherical top cover: fixing a spherical top cover unfolding material on a rotating core mold through a tail top, applying pressure to a blank by using a spinning wheel, axially feeding the spinning wheel simultaneously, wherein the spinning process comprises two parts of shearing spinning and common spinning, the shearing spinning corner cut is 50 degrees, the deformation rate is changed along with the corner cut, and after the corner cut is less than 50 degrees, adopting a plurality of paths of common spinning; heating by adopting a propane heavy heating torch, wherein the heating range is controlled within the range of 280mm away from the opening part, and the temperature is controlled at 260-280 ℃;
step 2: quenching the spherical top cover: firstly, an 80mm flange flanging is attached to a spherical top cover during spinning forming, 25-30 water outlet holes with the diameter of 80mm are formed at the small port of the spherical top cover, so that the small port can be conveniently sealed to discharge water, and impact is resisted; adjusting the position of the fixed angle sheet, fixing the large-end profile of the spherical top cover by using the fixed angle sheet, and finally driving the spherical top cover to enter water for quenching by using a quenching deformation-preventing tool.
Compared with the prior art, the quenching anti-deformation tool and the forming method for the large-diameter thin-wall spherical top cover have the following advantages:
the quenching deformation-preventing tool and the forming method for the large-diameter thin-wall spherical top cover are used in a matched mode, so that the spinning forming quality is improved, the clamping force and the distribution of deformation areas are ensured, and the product quality is finally improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural view of a quenching deformation prevention tool for a large-diameter thin-wall spherical top cover according to an embodiment of the invention.
Description of reference numerals:
1-water outlet; 2-flanging the flange; 3-fixing the corner pieces; 4-an aluminum plate; 5-steel plate.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in figure 1, the quenching anti-deformation tool for the large-diameter thin-wall spherical top cover comprises an aluminum plate 4; the outer edge of the aluminum plate 4 is provided with a steel plate 5; a circular water outlet 1 is arranged in the center of the aluminum plate 4; the edge of the water outlet 1 is provided with a plurality of fixed angle pieces 3 for fixing the large-end molded surface of the spherical top cover, and the fixed angle pieces 3 are symmetrically arranged by taking the circle center of the water outlet 1 as the center.
The rigidity of frock has been guaranteed in being connected of aluminum plate 4 and steel sheet 5.
As shown in fig. 1, the fixing angle piece 3 is provided with a notch, and a bolt passes through the notch to be fixedly connected with the aluminum plate 4.
The extending stroke of the fixed angle piece 3 can be adjusted through the notch, and a more stable fixing effect is realized.
As shown in fig. 1, eight fixed angle pieces 3 are provided, and every two of the eight fixed angle pieces 3 are symmetrically arranged by taking the circle center of the water outlet 1 as the center.
The even setting of eight fixed angle pieces 3 has guaranteed fixed effect.
As shown in fig. 1, the aluminum plate 4 is rectangular in shape.
As shown in fig. 1, the aluminum plate 4 is a 2219 aluminum alloy aluminum plate, and the fixing gusset 3 is a 2219 aluminum alloy gusset. The 2219 aluminum alloy plate is used for preventing the performance of the spherical top cover material from being influenced and avoiding collision.
As shown in fig. 1, the diameter of the water outlet 1 is 1700 mm.
As shown in figure 1, the forming method of the large-diameter thin-wall spherical top cover uses the quenching deformation-preventing tool of the large-diameter thin-wall spherical top cover:
step 1: spinning and forming a spherical top cover: fixing a spherical top cover unfolding material on a rotating core mold through a tail top, applying pressure to a blank by using a spinning wheel, axially feeding the spinning wheel simultaneously, wherein the spinning process comprises two parts of shearing spinning and common spinning, the shearing spinning corner cut is 50 degrees, the deformation rate is changed along with the corner cut, and after the corner cut is less than 50 degrees, adopting a plurality of paths of common spinning; heating by adopting a propane heavy heating torch, wherein the heating range is controlled within the range of 280mm away from the opening part, and the temperature is controlled at 260-280 ℃;
step 2: quenching the spherical top cover: firstly, an 80mm flange flanging 2 is attached to a spherical top cover during spinning forming, 25-30 water outlet holes with the diameter of 80mm are formed at the small port of the spherical top cover, so that the small port can be conveniently sealed to discharge water, and impact is resisted; adjusting the position of the fixed angle sheet 3, fixing the large-end profile of the spherical top cover by using the fixed angle sheet 3, and finally driving the spherical top cover to enter water for quenching by using a quenching deformation-preventing tool.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a quenching of major diameter thin wall ball-type top cap is preapred for an unfavorable turn of events shape frock which characterized in that: comprising an aluminium plate (4); the outer edge of the aluminum plate (4) is provided with a steel plate (5); a circular water outlet (1) is formed in the center of the aluminum plate (4); the edge of the water outlet (1) is provided with a plurality of fixed angle pieces (3) for fixing the large-end molded surface of the spherical top cover, and the fixed angle pieces (3) are arranged in a central symmetry mode, wherein the fixed angle pieces (3) are arranged in a plurality of modes and the circle center of the water outlet (1) is the center of the circle.
2. The quenching anti-deformation tool for the large-diameter thin-wall spherical top cover according to claim 1, which is characterized in that: the fixed angle piece (3) is provided with a notch, and a bolt penetrates through the notch and the aluminum plate (4) to be fixedly connected.
3. The quenching anti-deformation tool for the large-diameter thin-wall spherical top cover according to claim 1, which is characterized in that: the number of the fixed angle pieces (3) is eight, and every two of the eight fixed angle pieces (3) are symmetrically arranged by taking the circle center of the water outlet (1) as the center.
4. The quenching anti-deformation tool for the large-diameter thin-wall spherical top cover according to claim 1, which is characterized in that: the aluminum plate (4) is rectangular in shape.
5. The quenching anti-deformation tool for the large-diameter thin-wall spherical top cover according to claim 1, which is characterized in that: the aluminum plate (4) is a 2219 aluminum alloy aluminum plate, and the fixed corner piece (3) is a 2219 aluminum alloy corner piece.
6. The quenching anti-deformation tool for the large-diameter thin-wall spherical top cover according to claim 1, which is characterized in that: the diameter of the water outlet (1) is 1700 mm.
7. A method for forming a large-diameter thin-wall spherical top cover is characterized in that: the quenching deformation-preventing tool for the large-diameter thin-wall spherical top cover, which is disclosed by any one of claims 1 to 6, is used for:
step 1: spinning and forming a spherical top cover: fixing a spherical top cover unfolding material on a rotating core mold through a tail top, applying pressure to a blank by using a spinning wheel, axially feeding the spinning wheel simultaneously, wherein the spinning process comprises two parts of shearing spinning and common spinning, the shearing spinning corner cut is 50 degrees, the deformation rate is changed along with the corner cut, and after the corner cut is less than 50 degrees, adopting a plurality of paths of common spinning; heating by adopting a propane heavy heating torch, wherein the heating range is controlled within the range of 280mm away from the opening part, and the temperature is controlled at 260-280 ℃;
step 2: quenching the spherical top cover: firstly, an 80mm flange flanging (2) is attached to the spherical top cover during spinning forming, 25-30 water outlet holes with the diameter of 80mm are formed at the small port of the spherical top cover, so that the small port can be conveniently sealed to discharge water, and impact is resisted; adjusting the position of the fixed angle sheet (3), fixing the large-end profile of the spherical top cover by using the fixed angle sheet (3), and finally, driving the spherical top cover to enter water for quenching by using a quenching deformation-preventing tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384333.8A CN111004906A (en) | 2019-12-28 | 2019-12-28 | Quenching anti-deformation tool and forming method for large-diameter thin-wall spherical top cover |
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| CN201911384333.8A CN111004906A (en) | 2019-12-28 | 2019-12-28 | Quenching anti-deformation tool and forming method for large-diameter thin-wall spherical top cover |
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| CN111004906A true CN111004906A (en) | 2020-04-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113249665A (en) * | 2021-07-02 | 2021-08-13 | 中国航发北京航空材料研究院 | Forming method of aluminum alloy component |
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