Integrated box bottom spinning forming heating device

Abstract

The utility model discloses an integrated box bottom spinning forming heating equipment belongs to spinning forming technical field, including the heating assembly of detachable installation in spinning mould, the heating assembly includes the disc shell of half closed structure and a plurality of heating rods annular distribution in disc shell, the bottom of spinning mould is provided with the installation slot of adapting with disc shell, is provided with a plurality of annular distribution's T type groove on the lateral wall of installation slot, the outer circumference of disc shell is fixedly connected with a plurality of annular distribution's T type block, the one side of T type block is provided with locking slot, and the spinning mould is located the annular groove of installation slot outside, the utility model discloses the dismounting maintenance or replacement of convenient heating assembly, improve work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of spinning forming technology, specifically relating to an integrated box bottom spinning forming heating device. Background Technology

[0002] Launch vehicles are the prerequisite and foundation for the development of space technology, and the manufacturing level of ultra-large launch vehicles represents a country's ability to access outer space. As the main load-bearing structure of the launch vehicle body, the fuel tank accounts for more than 80% of the total weight of the rocket and determines the overall performance of the rocket, such as its payload capacity. The fuel tanks of the new generation of ultra-large launch vehicles not only rely on the application of new materials such as aluminum-lithium alloys to improve the level of lightweighting, but also reduce waste weight through the integrated and precise manufacturing of components. The head / bottom of the fuel tank of ultra-large launch vehicles is an ultra-large thin-walled structure with a diameter of more than 3.35m and a semi-ellipsoidal shape, while the wall thickness is only allowed to be 6-8mm. The traditional processing technology of rocket fuel tank head / bottom usually adopts the method of assembling by drawing and welding, which can no longer meet the manufacturing performance requirements of the new generation of ultra-large launch vehicles (diameter of more than 5 meters). Therefore, the manufacturing of ultra-large thin-walled structures usually adopts more advanced large-scale equipment spinning technology.

[0003] Currently, when spinning an integral box bottom, it is necessary to heat the workpiece using heating equipment. An existing Chinese patent with publication number CN214348941U discloses a spinning heating system, including: a spinning frame, on which a spinning fixture is provided, and a spinning die is provided on the spinning fixture, and a cavity is provided inside the spinning die; a heating device, wherein multiple layers of heating resistors are provided inside the cavity.

[0004] Regarding the aforementioned technologies, the inventors have discovered at least the following problems: In the aforementioned technologies, the heating device is integrated into the spinning mold. After long-term use, if the heating device malfunctions or is damaged, it is inconvenient to disassemble, repair, or replace the heating device, thus affecting work efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an integrated box bottom spinning heating device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated box bottom spinning forming heating device, including a heating component that can be detachably installed in the spinning mold. The heating component includes a semi-enclosed disc shell and a plurality of heating rods distributed in a ring within the disc shell. A cavity is provided in the center of the disc shell, and a heater electrically connected to the heating rods is installed inside the cavity.

[0007] The bottom of the spinning die has a mounting groove adapted to the disc shell. Several annularly distributed T-shaped grooves are formed on the side wall of the mounting groove. Several annularly distributed T-shaped blocks are fixedly connected to the outer circumference of the disc shell. A locking groove is formed on one side of each T-shaped block. The spinning die has an annular groove on the outside of the mounting groove. A slip ring is slidably installed inside the annular groove. Several annularly distributed springs abut against the top of the slip ring. A groove is formed on the side of the slip ring near each T-shaped groove. A guide groove is formed on the inner side wall of the groove. A guide block is slidably connected inside the guide groove. The guide block is fixedly connected to the surface of the locking block.

[0008] In a preferred embodiment, the end of the locking block away from the slip ring slides through into the T-groove and is provided with an angle.

[0009] In a preferred embodiment, the inner wall of the annular groove is provided with a plurality of annularly distributed limiting grooves, and the outer circumference of the slip ring is provided with a limiting block that slides in cooperation with the limiting groove.

[0010] In a preferred embodiment, a first heat insulation layer is embedded and connected at the edge of the spinning die.

[0011] In a preferred embodiment, a second heat insulation layer is fixedly connected to the inner bottom wall of the disc shell.

[0012] In a preferred embodiment, a third heat insulation layer is fixedly connected to the inner wall of the cavity.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This integrated box bottom spinning heating equipment, through the setting of the installation slot, allows for easy installation of the heating component. Simply insert the disc housing into the installation slot, and the T-block slides in along the corresponding T-slot. Once the disc housing is fully inside the installation slot, the spring applies elastic force to the slip ring, causing the slip ring to slide downwards in the annular groove. As the slip ring slides down, it drives the guide block to insert into the locking slot through the guide groove, locking the T-block and thus locking the heating component, achieving rapid installation of the heating component.

[0015] This integrated box bottom spinning heating equipment, through the setting of a slip ring, allows the heating component to be disassembled. First, the spinning mold is removed, then the spinning mold is placed on the support, and then the slip ring is pushed up, causing the slip ring to slide towards the spring side in the annular groove. When the slip ring slides up, it will drive the guide block to move out of the locking groove through the guide groove, thereby releasing the locking of the heating component. Then the heating component can be taken out of the installation groove, which facilitates the disassembly, maintenance or replacement of the heating component and improves work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the spinning die of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0019] In the diagram: 1. Spinning die; 11. Mounting groove; 12. T-slot; 13. Annular groove; 14. Slip ring; 15. Spring; 16. Groove; 17. Guide groove; 18. Guide block; 19. Locking block; 110. Limiting groove; 111. Limiting block; 112. First heat insulation layer; 2. Heating assembly; 21. Disc shell; 22. Heating rod; 23. Heater; 24. T-block; 25. Locking groove; 26. Second heat insulation layer; 27. Third heat insulation layer. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments.

[0021] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0022] Please see Figure 1-3 This utility model provides an integrated box-bottom spinning forming heating device, including a heating component 2 that can be detachably installed in a spinning mold 1. The heating component 2 includes a semi-enclosed disc shell 21 and a plurality of heating rods 22 distributed in a ring within the disc shell 21. A cavity is opened in the center of the disc shell 21, and a heater 23 electrically connected to the heating rods 22 is installed inside the cavity. By setting the heating component 2, the heater 23 can be activated during spinning forming to heat the heating rods 22, thereby heating the spinning mold 1 and the workpiece.

[0023] Furthermore, a first heat insulation layer 112 is embedded and connected at the edge of the spinning die 1. The first heat insulation layer 112 can insulate the edge of the spinning die 1 and reduce heat loss.

[0024] Furthermore, a second heat insulation layer 26 is fixedly connected to the inner bottom wall of the disc shell 21. The second heat insulation layer 26 can insulate the bottom of the disc shell 21 and reduce heat loss. A third heat insulation layer 27 is fixedly connected to the inner wall of the cavity. The third heat insulation layer 27 can insulate the inside of the cavity and reduce the heat entering the cavity.

[0025] Reference Figure 2 and Figure 3 The bottom of the spinning die 1 is provided with a mounting groove 11 that matches the disc housing 21. Several annularly distributed T-shaped grooves 12 are provided on the side wall of the mounting groove 11. Several annularly distributed T-shaped blocks 24 are fixedly connected to the outer circumference of the disc housing 21. A locking groove 25 is provided on one side of each T-shaped block 24. An annular groove 13 is provided on the outer side of the spinning die 1 outside the mounting groove 11. A slip ring 14 is slidably installed inside the annular groove 13. Several annularly distributed springs 15 abut against the top of the slip ring 14. A groove 16 is provided on the side of the slip ring 14 near each T-shaped groove 12. A guide groove 17 is provided on the inner side wall of the groove 16. A guide block 18 is slidably connected inside the guide groove 17. The guide block 18 is fixedly connected to the surface of the locking block 19. The end of the locking block 19 away from the slip ring 14 slides through into the T-shaped groove 12 and is provided with an angle. Through the installation groove 11, when installing the heating assembly 2, only the disc housing needs to be... 21 is inserted into the mounting slot 11, and at the same time, the T-block 24 slides in along the corresponding T-slot 12. After the disc housing 21 is fully inserted into the mounting slot 11, the spring 15 applies elastic force to the slip ring 14, causing the slip ring 14 to slide downward in the annular groove 13. When the slip ring 14 slides down, it will drive the guide block 18 to insert into the locking slot 25 through the guide groove 17, locking the T-block 24, and thus locking the heating component 2, realizing the quick installation of the heating component 2. When the heating component 2 needs to be disassembled, first remove the spinning mold 1, then place the spinning mold 1 on the bracket, and then push the slip ring 14, causing the slip ring 14 to slide towards the side of the spring 15 in the annular groove 13. When the slip ring 14 slides up, it will drive the guide block 18 to move out of the locking slot 25 through the guide groove 17, thus releasing the locking of the heating component 2, and then the heating component 2 can be taken out from the mounting slot 11, which facilitates the disassembly, maintenance or replacement of the heating component 2 and improves work efficiency.

[0026] The inner wall of the annular groove 13 is provided with several annularly distributed limiting grooves 110, and the outer circumference of the slip ring 14 is provided with a limiting block 111 that slides with the limiting groove 110. Through the cooperation of the limiting groove 110 and the limiting block 111, the slip ring 14 can be limited, thereby improving the stability of the slip ring 14.

[0027] The working principle and usage process of this utility model are as follows: First, when installing the heating component 2, simply insert the disc housing 21 into the mounting groove 11, and simultaneously slide the T-shaped block 24 into the corresponding T-shaped groove 12. After the disc housing 21 is fully inserted into the mounting groove 11, the spring 15 applies elastic force to the slip ring 14, causing the slip ring 14 to slide downward in the annular groove 13. As the slip ring 14 slides down, it will drive the guide block 18 to insert into the locking groove 25 through the guide groove 17, locking the T-shaped block 24, thereby locking the heating component 2. This allows for the rapid installation of the heating component 2. When the heating component 2 needs to be disassembled, the spinning die 1 is first removed, then the spinning die 1 is placed on the bracket, and then the sliding ring 14 is pushed up so that the sliding ring 14 slides towards the side of the spring 15 in the annular groove 13. When the sliding ring 14 slides up, it will drive the guide block 18 to move out of the locking groove 25 through the guide groove 17, thereby releasing the locking of the heating component 2. Then the heating component 2 can be taken out from the mounting groove 11, which facilitates the disassembly, maintenance or replacement of the heating component 2 and improves work efficiency.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated box bottom spinning forming heating device, comprising a heating component (2) detachably installed within a spinning mold (1), characterized in that: The heating assembly (2) includes a semi-enclosed disc shell (21) and a plurality of heating rods (22) arranged in a ring within the disc shell (21). A cavity is provided in the center of the disc shell (21), and a heater (23) electrically connected to the heating rods (22) is installed inside the cavity. The bottom of the spinning die (1) is provided with an installation groove (11) that is compatible with the disc housing (21). Several T-shaped grooves (12) are provided on the side wall of the installation groove (11). Several T-shaped blocks (24) are fixedly connected on the outer circumference of the disc housing (21). A locking groove (25) is provided on one side of the T-shaped block (24). An annular groove (13) is provided on the outside of the installation groove (11) of the spinning die (1). A slip ring (14) is slidably installed inside the annular groove (13). Several springs (15) are abutted on the top of the slip ring (14). A groove (16) is provided on the side of the slip ring (14) near each T-shaped groove (12). A guide groove (17) is provided on the inner side wall of the groove (16). A guide block (18) is slidably connected inside the guide groove (17). The guide block (18) is fixedly connected to the surface of the locking block (19).

2. The integrated box bottom spinning and heating equipment according to claim 1, characterized in that: The locking block (19) has one end away from the slip ring (14) that slides through into the T-groove (12) and is provided with an angle.

3. The integrated box bottom spinning and heating equipment according to claim 1, characterized in that: The inner wall of the annular groove (13) is provided with several annularly distributed limiting grooves (110), and the outer circumference of the slip ring (14) is provided with a limiting block (111) that slides in cooperation with the limiting groove (110).

4. The integrated box bottom spinning and heating equipment according to claim 1, characterized in that: A first heat insulation layer (112) is embedded and connected at the edge of the spinning die (1).

5. The integrated box bottom spinning and heating equipment according to claim 1, characterized in that: A second heat insulation layer (26) is fixedly connected to the inner bottom wall of the disc shell (21).

6. The integrated box bottom spinning and heating equipment according to claim 1, characterized in that: A third heat insulation layer (27) is fixedly connected to the inner wall of the cavity.

Images