CN111331036A - Die and method for manufacturing convex triangular expandable sealed cabin section by adopting metal foil - Google Patents
Die and method for manufacturing convex triangular expandable sealed cabin section by adopting metal foil Download PDFInfo
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- CN111331036A CN111331036A CN202010187295.3A CN202010187295A CN111331036A CN 111331036 A CN111331036 A CN 111331036A CN 202010187295 A CN202010187295 A CN 202010187295A CN 111331036 A CN111331036 A CN 111331036A
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- inclined plane
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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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
- B21D33/00—Special measures in connection with working metal foils, e.g. gold foils
Abstract
A die and a method for manufacturing a convex triangular expandable sealed cabin section by adopting metal foil relate to the field of manufacturing of expandable sealed cabin sections. The problem that the existing deployable sealing cabin section is made of high polymer materials, the materials are insufficient in ray radiation resistance and small in structural rigidity when used in outer space is solved. The female die is arranged on the upper end face of the bottom plate, and the positioning cavity is arranged on the weight reducing frame. Two diamond-shaped press blocks are arranged at the left end of the male die, and the press blocks are connected with the upper top plate through four groups of springs and flexible wires. The male die and the pressing block are provided with three positioning holes at specific positions and used for centering with the female die during installation. The lower surfaces of the pressing block and the male die are attached to a first isosceles triangle inclined plane group, a second isosceles triangle inclined plane group and a third isosceles triangle inclined plane group of the female die. The invention is used for manufacturing the space expandable sealed cabin section of the convex triangular metal foil/thin plate.
Description
Technical Field
The invention relates to a manufacturing technology of an expandable metal foil sealed cabin section, in particular to a die for manufacturing a convex-triangular expandable sealed cabin section by adopting metal foil and a using method thereof.
Background
The expandable sealed cabin section has wide application prospect in an outer space base, can effectively reduce occupied carrying space of rockets, space ships and the like during transportation, and has large usable volume on the surface of the base or a planet.
The expandable sealing cabin section which is commonly used at present is made of high polymer materials. The overall stiffness of such a section is low, the wall thickness and weight being high. Because of no atmosphere protection, the cabin section service ringThe maximum temperature of the environment exceeds 200OAnd C, the high polymer material is easy to soften. In addition, when the expandable sealed cabin section made of the material is used, the cabin section can be shaped only by keeping certain air pressure.
The metal material has high strength and good shaping capability after deformation, so that the metal foil/thin plate expandable sealing structure better meets the use requirements of an outer space base. The convex triangular expandable sealing structure is strong in impact resistance, and the structural rigidity is higher than that of a common expandable sealing structure. When the structure is deformed, the upper end surface and the lower end surface cannot rotate, so that the usable space inside the structure is larger. Some foreign documents report physical samples of this type of structure, but do not disclose relevant molding apparatus and methods. And no research report of the type of expandable sealing structure exists at present in China.
Disclosure of Invention
The invention provides a mold for manufacturing an expandable sealed cabin section by adopting metal foil and a using method thereof, aiming at solving the problems that the existing expandable sealed cabin section is made of high polymer materials, the structure has small rigidity, the usable temperature range is narrow, the air pressure needs to be kept for shaping and the like.
The invention discloses a die and a method for manufacturing a convex-triangular expandable sealed cabin section by adopting a metal foil, wherein the die comprises a bottom plate, a female die, a diamond-shaped pressing block, a male die, a weight reducing frame, four springs, four flexible wires, a top plate and an upper connecting plate;
the concave die is in a rhombus shape with four common edges in a top view. The upper end face of the female die is sequentially provided with a first triangular inclined face, a second triangular inclined face, a third triangular inclined face, a fourth triangular inclined face, a fifth triangular inclined face, a sixth triangular inclined face, a seventh triangular inclined face and an eighth triangular inclined face from front to back. The die blocks at which the fifth to eighth triangular inclined planes are located are arranged on the weight reducing frame, and the weight reducing frame and the die blocks at which the first and second triangular inclined planes are located are arranged on the bottom plate. The four springs correspond to the four flexible wires one by one, and the flexible wires are arranged in the springs to form a spring and flexible wire combination which is connected with the two diamond-shaped pressing blocks and the upper connecting plate. The upper connecting plate and the male die are fixed on the top plate and are provided with two common edges. And four lower surfaces of the diamond-shaped pressing block are respectively attached to the fifth to eighth triangular inclined surfaces of the female die when the die is pressed.
Furthermore, the first triangular inclined plane and the second triangular inclined plane of the female die are symmetrical, the highest point and the lowest point of the first triangular inclined plane and the second triangular inclined plane are respectively in common point, and the heights of the third points are the same. The third triangular inclined plane and the fourth triangular inclined plane are symmetrical, the highest point and the lowest point of the third triangular inclined plane and the fourth triangular inclined plane are respectively in common point, and the height of the third point is the same. The fifth triangular inclined plane and the sixth triangular inclined plane are symmetrical, the common side of the fifth triangular inclined plane and the sixth triangular inclined plane is on the horizontal plane, the seventh triangular inclined plane and the eighth triangular inclined plane are symmetrical, the common side of the seventh triangular inclined plane and the eighth triangular inclined plane is on the horizontal plane, and the highest point and the lowest point are respectively on the same point.
Furthermore, the upper part of the diamond-shaped pressing block is connected with a blind hole at the position of the spring and the flexible wire, the diameter of the blind hole is 1.3 times of the diameter of the spring, and the depth of the blind hole is 15-25% of the maximum stretching length of the spring.
Furthermore, a rubber layer is arranged at the lower part of the diamond-shaped press block, and the thickness of the rubber layer is 1/3-1/2 of the total thickness of the press block.
A method for manufacturing a convex triangular expandable sealed cabin section by adopting the die comprises the following specific steps:
firstly, fixing a male die (4) and a female die (2) on a press machine, and placing a metal foil blank on the female die (2);
secondly, the press machine descends, the diamond pressing block (3) is firstly contacted with the blank, and finally attached to the fifth (2-5) and sixth (2-6) triangular inclined planes of the female die;
step three, the male die (4) is contacted with the blank, and the blank is pressed until the male die is attached to the first (2-1) to the fourth (2-4) triangular inclined planes of the female die;
step four, moving the triangular units pressed on the first (2-1) and second (2-2) triangular inclined planes to fifth (2-5) and sixth (2-6) triangular inclined planes as positioning parts for subsequent forming;
and step five, repeating the step two to the step four to finish the molding of the triangular units on the same height of the structure.
And step six, after the triangular units on the same height of the blank are formed, the triangular units with one ends pressed on the first (2-1) and second (2-2) triangular inclined planes are respectively moved to the seventh (2-7) and eighth (2-8) triangular inclined planes. And repeating the second step to the fourth step to finish the forming of the triangular unit on the next height.
And step seven, taking out the blank after the molding is finished, and obtaining the product.
Compared with the prior art, the invention has the following beneficial effects:
the mold can be used for manufacturing the convex triangular expandable sealed cabin section made of metal foil/thin plate. Compared with the sealing cabin section made of high polymer materials, the metal expandable sealing cabin section has the advantages of good rigidity, small wall thickness and strong space ray radiation resistance. When the diameter of the circumcircle of the end surface of the cabin section manufactured by the die is 50cm and the number of the sides of the regular polygon is 15, the length error of the triangular unit is not more than 3cm, and the angle error is not more than 2o。
Drawings
FIG. 1 is a schematic view of the mold as a whole;
FIG. 2 is a schematic view of a product made using a mold;
FIG. 3 is a schematic view of the die shoe + weight loss stand (view one);
FIG. 4 is a schematic view of the die shoe + weight loss stand (perspective two);
FIG. 5 is a schematic view of the lower die as a whole;
FIG. 6 is a top view of the female die positioning portion;
FIG. 7 is a plan view of the female mold forming part;
FIG. 8 is an overall schematic view of the upper die;
FIG. 9 is a partial schematic view of the upper die;
FIG. 10 is a top view of a diamond compact;
FIG. 11 is a bottom view of the diamond compact;
FIG. 12 is a schematic view of a diamond compact;
figure 13 is a schematic view of the punch + top plate.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1-13, and the embodiment comprises a bottom plate (1), a female die (2), a diamond-shaped pressing block (3), a male die (4), a weight reduction frame (5), four springs (6), four flexible wires (7), a top plate (8) and an upper connecting plate (9);
the concave die (2) is a rhombus with four common edges in a top view. The upper surface of the female die (2) is sequentially provided with a first triangular inclined surface (2-1), a second triangular inclined surface (2-2), a third triangular inclined surface (2-3), a fourth triangular inclined surface (2-4), a fifth triangular inclined surface (2-5), a sixth triangular inclined surface (2-6), a seventh triangular inclined surface (2-7) and an eighth triangular inclined surface (2-8) from front to back. The die blocks where the fifth to eighth triangular inclined planes are located are arranged on the weight reducing frame (5), and the weight reducing frame (5) and the die blocks where the first (2-1) and second (2-2) triangular inclined planes are located are arranged on the bottom plate. The four springs (6) correspond to the four flexible wires (7) one by one, the flexible wires are arranged in the springs to form a spring and flexible wire combination, and the two diamond-shaped pressing blocks (3) are connected with the upper connecting plate. The upper connecting plate (9) and the male die (4) are fixed on the top plate (8) and are provided with two common edges. The four lower surfaces of the diamond-shaped pressing block (3) are respectively attached to the fifth (2-5) to eighth (2-8) triangular inclined surfaces of the female die during die pressing.
The second embodiment is as follows: referring to fig. 6, the first triangular inclined plane (2-1) and the second triangular inclined plane (2-2) in the female die (2) are symmetrical, the highest point and the lowest point of the first triangular inclined plane and the second triangular inclined plane respectively share a same point, and the third point is at the same height. The third triangular inclined plane (2-3) and the fourth triangular inclined plane (2-4) are symmetrical, the highest point and the lowest point of the third triangular inclined plane and the fourth triangular inclined plane are respectively in common point, and the height of the third point is the same. The fifth triangular inclined plane (2-5) and the sixth triangular inclined plane (2-6) are symmetrical, the common side of the fifth triangular inclined plane and the sixth triangular inclined plane is on the horizontal plane, the seventh triangular inclined plane (2-7) and the eighth triangular inclined plane (2-8) are symmetrical, the common side of the seventh triangular inclined plane and the eighth triangular inclined plane is on the horizontal plane, and the highest point and the lowest point are respectively in common point. Other components and connections are the same as in the first embodiment.
The third concrete implementation mode: referring to fig. 8, the working surface of the diamond compact (3) is four isosceles triangle slopes, which are matched with the fifth (2-5) to eighth (2-8) triangle slopes of the female die (4). Other compositions and connections are the same as in the first or second embodiments.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 5, the die block where the third (2-3) and the fourth (2-4) angular inclined planes are located is divided into two parts, one part is directly fixed on the bottom plate together with the first (2-1) and the second (2-2) triangular inclined planes, the other part is fixed on the weight reducing frame together with the fifth (2-5) to the eighth (2-8) triangular inclined planes. Other compositions and connection relationships are the same as in the first, second or third embodiment.
The fifth concrete implementation mode: the embodiment is described by combining fig. 9, the upper part of the diamond-shaped pressing block (3) is connected with a 'spring + flexible wire' position to form a blind hole (3-1), the diameter of the blind hole is 1.3 times of the diameter of the spring, and the depth of the blind hole is 15% -25% of the maximum stretching length of the spring. Other compositions and connection relationships are the same as those in the first, second, third or fourth embodiment.
The sixth specific implementation mode: in the present embodiment, the rubber layer (3-2) is provided under the diamond compact (3) and has a thickness of 1/3-1/2 of the total compact thickness, as described with reference to fig. 9. Other compositions and connection relationships are the same as in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: in the positioning cavity of the female die (2), two through holes are arranged on the sixth triangular inclined surface (2-6) and the eighth triangular inclined surface (2-8), and one through hole is arranged on the third triangular inclined surface (2-3) in the molding part. Two through holes are arranged on the diamond-shaped pressing block (3), and one through hole is arranged on the male die (4). And two through holes in the positioning cavity of the female die (2) are respectively aligned with two through holes of the diamond-shaped pressing block (3), and a through hole on the molding part of the female die (2) is aligned with a through hole on the male die (4).
The specific implementation mode is eight: the method of manufacturing the convex-triangular expandable sealing structure cabin section using the mold of the present embodiment will be described with reference to fig. 1 to 13. The method is realized by the following steps:
firstly, fixing a male die (4) and a female die (2) on a press machine, and placing a metal foil blank on the female die (2);
secondly, the press machine descends, the diamond pressing block (3) is firstly contacted with the blank, and finally attached to the fifth (2-5) and sixth (2-6) triangular inclined planes of the female die;
step three, the male die (4) is contacted with the blank, and the blank is pressed until the male die is attached to the first (2-1) to the fourth (2-4) triangular inclined planes of the female die;
step four, moving the triangular units pressed on the first (2-1) and second (2-2) triangular inclined planes to fifth (2-5) and sixth (2-6) triangular inclined planes as positioning parts for subsequent forming;
and step five, repeating the step two to the step four to finish the molding of the triangular units on the same height of the structure.
And step six, after the triangular units on the same height of the blank are formed, the triangular units with one ends pressed on the first (2-1) and second (2-2) triangular inclined planes are respectively moved to the seventh (2-7) and eighth (2-8) triangular inclined planes. And repeating the second step to the fourth step to finish the forming of the triangular unit on the next height.
And step seven, taking out the blank after the molding is finished, and obtaining the product.
The working principle of the invention is as follows: the die comprises an upper die, a lower die and a pressing block. In order to reduce the weight of the female die and save manufacturing and installation cost, part of non-working parts of the female die are replaced by a weight reducing frame. The female die is divided into a forming part and a positioning part. The surface of the forming part is provided with a first to a fourth triangular inclined planes which are used for pressing and forming the edges of the convex triangular expandable sealing structure. The surface of the positioning portion is a fifth to eighth triangular slope for positioning. Because the product to be manufactured has larger length and diameter, in order to prevent space interference, a guide post and a guide sleeve are not arranged, and the centering of the upper die and the lower die is completed through three positioning through holes of the male die and the female die during installation. During installation, the bolts penetrate through the three through holes of the lower die, and then the through holes of the upper die are inserted into the three bolts of the lower die. And after the installation is finished, removing the bolt. The mechanism of the spring and the flexible wire is used for controlling the opening and closing of the diamond-shaped pressing block, and the diamond-shaped pressing block is used as a positioning device and is attached to the metal foil before forming, so that the height of the diamond-shaped pressing block is lower than that of the male die, and four flexible wires with larger lengths are adopted. To increase the cushioning of the positioning process, four springs are used.
In the aspect of the forming sequence, the triangular unit layers with the same height are formed firstly, then the formed units are moved to the positioning cavity, and the forming of the next height unit layer is carried out until all the triangular units are formed.
Claims (10)
1. Adopt the mould of the deployable sealed cabin section of metal foil material manufacture protruding triangle, its characterized in that: the die comprises a bottom plate (1), a female die (2), a diamond-shaped pressing block (3), a male die (4), a weight reduction frame (5), four springs (6), four flexible wires (7), a top plate (8) and an upper connecting plate (9).
2. The mold for manufacturing the expandable capsule section of the convex triangular shape by using the metal foil as claimed in claim 1, wherein: the concave die (2) is in a rhombus shape with four common sides in a top view, and the upper end face of the concave die (2) is sequentially provided with a first triangular inclined face (2-1), a second triangular inclined face (2-2), a third triangular inclined face (2-3), a fourth triangular inclined face (2-4), a fifth triangular inclined face (2-5), a sixth triangular inclined face (2-6), a seventh triangular inclined face (2-7) and an eighth triangular inclined face (2-8) from front to back.
3. The mold for manufacturing the expandable capsule section of the convex triangular shape by using the metal foil as claimed in claim 1 and 2, wherein: the die blocks where the fifth to eighth triangular inclined planes are located are arranged on the weight reducing frame (5), and the weight reducing frame (5) and the die blocks where the first (2-1) and second (2-2) triangular inclined planes are located are arranged on the bottom plate.
4. The mold for manufacturing the expandable capsule section of the convex triangular shape by using the metal foil as claimed in claim 1 and 2, wherein: and four lower surfaces of the diamond-shaped pressing block (3) are respectively attached to fifth (2-5) to eighth (2-8) triangular inclined surfaces of the female die when the die is pressed.
5. The mold for manufacturing the expandable capsule section of the convex triangular shape by using the metal foil as claimed in claim 1 and 2, wherein: the first triangular inclined plane (2-1) and the second triangular inclined plane (2-2) of the female die (2) are symmetrical, the highest point and the lowest point of the first triangular inclined plane and the second triangular inclined plane are respectively in common point, and the heights of the third point are the same.
6. The mold for manufacturing the expandable capsule section of the convex triangular shape by using the metal foil as claimed in claim 1 and 2, wherein: the third triangular inclined plane (2-3) and the fourth triangular inclined plane (2-4) are symmetrical, the highest point and the lowest point of the third triangular inclined plane and the fourth triangular inclined plane are respectively in common point, and the height of the third point is the same.
7. The mold for manufacturing the expandable capsule section of the convex triangular shape by using the metal foil as claimed in claim 1 and 2, wherein: the fifth triangular inclined plane (2-5) and the sixth triangular inclined plane (2-6) are symmetrical, the common side of the fifth triangular inclined plane and the sixth triangular inclined plane is on the horizontal plane, the seventh triangular inclined plane (2-7) and the eighth triangular inclined plane (2-8) are symmetrical, the common side of the seventh triangular inclined plane and the eighth triangular inclined plane is on the horizontal plane, and the highest point and the lowest point are respectively in common point.
8. The mold for manufacturing the expandable capsule section of the convex triangular shape by using the metal foil as claimed in claim 1 and 2, wherein: the upper part of the diamond-shaped pressing block (3) is connected with a 'spring + flexible wire' position to form a blind hole (3-1), the diameter of the blind hole is 1.3 times of the diameter of the spring, and the depth of the blind hole is 15% -25% of the maximum stretching length of the spring.
9. The mold for manufacturing the expandable capsule section of the convex triangular shape by using the metal foil as claimed in claim 1 and 2, wherein: the lower part of the diamond-shaped press block (3) is provided with a rubber layer (3-2), and the thickness of the rubber layer is 1/3-1/2 of the total thickness of the press block.
10. A method of forming a convex-triangular deployable capsule section according to any one of claims 1 to 9, wherein the convex-triangular deployable capsule section is formed by:
firstly, fixing a male die (4) and a female die (2) on a press machine, and placing a metal foil blank on the female die (2);
secondly, the press machine descends, the diamond pressing block (3) is firstly contacted with the blank, and finally attached to the fifth (2-5) and sixth (2-6) triangular inclined planes of the female die;
step three, the male die (4) is contacted with the blank, and the blank is pressed until the male die is attached to the first (2-1) to the fourth (2-4) triangular inclined planes of the female die;
step four, moving the triangular units pressed on the first (2-1) and second (2-2) triangular inclined planes to fifth (2-5) and sixth (2-6) triangular inclined planes as positioning parts for subsequent forming;
step five, repeating the step two to the step four to finish the forming of the triangular units on the same height of the structure;
sixthly, after the triangular units on the same height of the blank are formed, respectively moving the triangular units with one ends pressed on the first (2-1) triangular inclined planes and the second (2-2) triangular inclined planes to the seventh (2-7) triangular inclined planes and the eighth (2-8) triangular inclined planes;
step seven, repeating the step two to the step four to finish the molding of the triangular unit on the next height;
and step eight, taking out the blank after the molding is finished, and obtaining the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010187295.3A CN111331036A (en) | 2020-03-17 | 2020-03-17 | Die and method for manufacturing convex triangular expandable sealed cabin section by adopting metal foil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010187295.3A CN111331036A (en) | 2020-03-17 | 2020-03-17 | Die and method for manufacturing convex triangular expandable sealed cabin section by adopting metal foil |
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| CN111331036A true CN111331036A (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010187295.3A Pending CN111331036A (en) | 2020-03-17 | 2020-03-17 | Die and method for manufacturing convex triangular expandable sealed cabin section by adopting metal foil |
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| JP2015182682A (en) * | 2014-03-25 | 2015-10-22 | 次世代宇宙システム技術研究組合 | Method of manufacturing body structure for spacecraft |
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| CN106238582A (en) * | 2016-09-19 | 2016-12-21 | 哈尔滨工业大学 | A kind of mould using metal foil/thin plate making space deployable cabin section |
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2020
- 2020-03-17 CN CN202010187295.3A patent/CN111331036A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20110203344A1 (en) * | 2010-02-25 | 2011-08-25 | Rudi Kolb | Stamping -Bending Method |
| US20150203322A1 (en) * | 2012-08-13 | 2015-07-23 | Tessellated Group, Llc | Apparatus for Folding a Sheet of Material Into a Support Structure |
| JP2014148212A (en) * | 2013-01-31 | 2014-08-21 | Univ Of Tokyo | Deformable structure |
| JP2015182682A (en) * | 2014-03-25 | 2015-10-22 | 次世代宇宙システム技術研究組合 | Method of manufacturing body structure for spacecraft |
| CN105043778A (en) * | 2015-07-06 | 2015-11-11 | 西安航天动力试验技术研究所 | Engine high-altitude simulation system vacuum cabin |
| CN106238582A (en) * | 2016-09-19 | 2016-12-21 | 哈尔滨工业大学 | A kind of mould using metal foil/thin plate making space deployable cabin section |
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| 刘金国;陈科利;谢华龙;: "空间站可充气展开舱外载荷原理样机结构设计与分析", 载人航天, no. 06, pages 737 - 743 * |
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