Large-size composite half-shell structure assembling device and processing method

Abstract

The application provides an oversized composite half-shell structure assembling device and processing method, which comprises a cylinder section rear end frame positioning device, a cylinder section overall supporting device, a cylinder section front end frame positioning device and a von Karman section positioning and supporting device; the cylinder section rear end frame positioning device, the cylinder section overall supporting device, the cylinder section front end frame positioning device and the von Karman section positioning and supporting device are arranged in a straight line in sequence; the axial direction of the cylinder section shell and the von Karman section shell is parallel to the straight line arrangement direction of the cylinder section rear end frame positioning device, the cylinder section overall supporting device, the cylinder section front end frame positioning device and the von Karman section positioning and supporting device. The application is used for assembling large-size satellite fairing shell of a 5200 rocket satellite, can realize flat laying type assembling of the fairing shell, can effectively reduce deformation through the supporting device, and can realize butt joint between shell sections and ensure assembling precision.

Description

Technical Field

[0001] This invention relates to the field of rocket and satellite fairing assembly, specifically to an assembly device and processing method for ultra-large composite material semi-shell structures. Background Technology

[0002] The 5200 rocket's satellite fairing section has a diameter of 5.2 meters, making it the largest diameter composite material satellite fairing in China to date. Its von Kármán section and cylindrical section consist of a composite material skin surrounded by metal profiles, and the various sections are then joined together to form the satellite fairing. The poor overall rigidity and susceptibility to deformation before the launch posed significant challenges to the assembly process. Furthermore, assembly precision affects fairing separation, ultimately impacting the success or failure of the rocket launch.

[0003] Previously, satellite fairing shells were relatively small, and assembly was done "lying down." However, if the 5200 satellite fairing shell were assembled "lying down," its size would be too large, and the force of gravity would increase deformation. Therefore, an assembly device was invented that allows the fairing shell to be assembled "lying down." When the shell is "lying down," a support device is provided, which can effectively reduce deformation and also enable docking between shell sections, ensuring assembly accuracy. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an assembly device and processing method for ultra-large composite material semi-shell structures.

[0005] An assembly device for an ultra-large composite material semi-shell structure according to the present invention includes: a rear end frame positioning device for a cylindrical section, an overall support device for a cylindrical section, a front end frame positioning device for a cylindrical section, and a von Kármán section positioning support device.

[0006] The rear end frame positioning device of the cylindrical section, the overall support device of the cylindrical section, the front end frame positioning device of the cylindrical section, and the von Kármán section positioning support device are arranged in a straight line in sequence.

[0007] The cylindrical shell section is assembled using a rear end frame positioning device, an overall support device, and a front end frame positioning device. The von Karman section shell is assembled using a front end frame positioning device and a von Karman section positioning support device. The cylindrical shell section and the von Karman section shell are connected using a rear end frame positioning device, an overall support device, a front end frame positioning device, and a von Karman section positioning support device.

[0008] The axial direction of the cylindrical shell and the von Kármán section shell is parallel to the straight line arrangement direction of the cylindrical rear end frame positioning device, the cylindrical overall support device, the cylindrical front end frame positioning device, and the von Kármán section positioning support device.

[0009] Preferably, the cylindrical section rear end frame positioning device includes: a cylindrical section rear end frame support chassis, a cylindrical section rear end frame slide rail, a cylindrical section rear end frame chuck, a cylindrical section rear end frame drive handwheel, a cylindrical section shell rear end frame positioning block, and a cylindrical section shell rear end frame clamping plate.

[0010] The rear end frame of the cylindrical section is mounted on the chassis supporting the rear end frame of the cylindrical section, and the rear end frame chuck of the cylindrical section is slidably mounted on the rear end frame slide rail of the cylindrical section.

[0011] The drive handwheel of the rear end frame of the cylindrical section is rotated and mounted on the support chassis of the rear end frame of the cylindrical section. The drive handwheel of the rear end frame of the cylindrical section is connected to and drives the chuck of the rear end frame of the cylindrical section to make linear motion.

[0012] The rear end frame positioning block and the rear end frame clamping plate of the cylinder shell are installed on the drive cylinder section rear end frame chuck.

[0013] Preferably, the integral support device for the cylindrical section includes: a support device chassis, a positioning and clamping plate for the cylindrical section shell docking truss, a guide wheel for the cylindrical section support device, and a positioning and clamping block for the cylindrical section shell docking truss.

[0014] One or more support structures are installed on the chassis of the support device. The support structures are provided with guide wheels for the cylindrical section support device. The two sides of the support structures are provided with positioning and clamping plates for the cylindrical section shell docking truss. The cylindrical section shell docking truss positioning and clamping plates are provided with multiple positioning and clamping blocks for the cylindrical section shell docking truss.

[0015] Preferably, the cylindrical section front end frame positioning device includes: a cylindrical section front end frame chassis, a cylindrical section front end frame drive handwheel, a cylindrical section front end frame slide rail, a cylindrical section front end frame chuck, a cylindrical section front end frame positioning block, a cylindrical section front end frame clamping plate, a von Carmen section shell positioning block, and a von Carmen section shell clamping plate.

[0016] The front end frame slide rail of the cylindrical section is installed on the chassis of the front end frame of the cylindrical section, and the front end frame chuck of the cylindrical section is slidably installed on the front end frame slide rail of the cylindrical section.

[0017] The front end frame drive handwheel is rotatably mounted on the chassis of the front end frame of the cylindrical section. The front end frame drive handwheel is connected to and drives the front end frame chuck of the cylindrical section to make linear motion.

[0018] The front end frame chuck of the cylinder section is provided with a cylinder section front end frame positioning block and a cylinder section front end frame clamping plate on the side facing the cylinder section overall support device, and the front end frame chuck of the cylinder section is provided with a von Karmen section housing positioning block and a von Karmen section housing clamping plate on the side facing the von Karmen section positioning support device.

[0019] Preferably, the von Kármán section positioning support device includes: a von Kármán section chassis, a von Kármán section chuck, a von Kármán section guide wheel, a von Kármán section docking truss positioning clamping plate, a von Kármán section front frame chuck, a von Kármán section front frame positioning block, and a von Kármán section front frame pressing plate.

[0020] The von Kármán section chassis is equipped with a von Kármán section chuck and a von Kármán section front end frame chuck.

[0021] The von Kármán section chuck is equipped with von Kármán section guide wheels, and the von Kármán section docking truss positioning clamping plates are provided on both sides of the von Kármán section chuck.

[0022] The von Kármán segment front end frame chuck is equipped with a von Kármán segment front end frame positioning block and a von Kármán segment front end frame clamping plate.

[0023] Preferably, the rear end frame positioning block, the front end frame positioning block, the von Karman section shell positioning block, and the von Karman section front end frame positioning block are all provided in multiple quantities and adapted to the outer contour shape of the cylindrical shell or the von Karman section shell, and are arranged in an arc shape.

[0024] Preferably, the rolling direction of the guide wheel of the cylindrical section support device and the guide wheel of the von Kármán section is parallel to the axial direction of the cylindrical section shell or the von Kármán section shell.

[0025] Preferably, the cylindrical shell section includes: a cylindrical section connecting girder, a cylindrical section rear end frame, a cylindrical section front end frame, and a cylindrical section composite material skin;

[0026] The two ends of the composite material skin of the cylindrical section are respectively connected to the rear end frame and the front end frame of the cylindrical section, and both sides of the composite material skin of the cylindrical section are connected to the cylindrical section connecting truss.

[0027] Preferably, the von Kármán section shell includes: a von Kármán section connecting truss, a von Kármán section rear end frame, a von Kármán section front end frame, and a von Kármán section composite material skin;

[0028] The two ends of the von Kármán section composite material skin are respectively connected to the rear end frame and the front end frame of the von Kármán section, and both sides of the von Kármán section composite material skin are connected to the von Kármán section connecting trusses.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] This application addresses the assembly of large-sized satellite fairing shells, such as those for the 5200 rocket satellite. It enables the fairing shell to be assembled in a flat position. Through the support device, deformation can be effectively reduced, and docking between shell sections can be achieved, ensuring assembly accuracy. Attached Figure Description

[0031] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0032] Figure 1 This is a schematic diagram of the overall structure of the assembly device;

[0033] Figure 2 A schematic diagram showing the installation of the cylindrical shell section and the von Kármán shell section using an assembly device;

[0034] Figure 3 Schematic diagram of the positioning device for the rear end frame of the cylindrical section (I);

[0035] Figure 4 Schematic diagram of the positioning device for the rear end frame of the cylindrical section (II);

[0036] Figure 5 This is a schematic diagram of the overall support device for the cylindrical section;

[0037] Figure 6 Schematic diagram of the positioning device for the front end frame of the cylindrical section (I);

[0038] Figure 7 Schematic diagram of the positioning device for the front end frame of the cylindrical section (II);

[0039] Figure 8 A schematic diagram of the positioning support device for the von Kármán section;

[0040] Figure 9 This is a schematic diagram of the overall structure of the cylindrical shell section and the von Kármán shell section;

[0041] Figure 10 This is a schematic diagram of the assembly of the cylindrical shell section and the von Kármán shell section;

[0042] As shown in the figure:

[0043] Detailed Implementation

[0044] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0045] like Figures 1-2As shown, this embodiment includes: a rear end frame positioning device 1 for the cylindrical section, an overall support device 2 for the cylindrical section, a front end frame positioning device 3 for the cylindrical section, and a von Karman section positioning support device 4. The oversized composite semi-shell structure assembled using the devices of this embodiment includes: a cylindrical section shell 5 and a von Karman section shell 6. The cylindrical section shell 5 and the von Karman section shell 6 are a 1 / 4 annular shell structure, and are coaxially connected and installed. The rear end frame positioning device 1, the overall support device 2, the front end frame positioning device 3, and the von Karman section positioning support device 4 are arranged in a straight line, with the straight line direction parallel to the axial direction of the cylindrical section shell 5 and the von Karman section shell 6. The cylindrical shell 5 is assembled using the cylindrical rear end frame positioning device 1, the cylindrical overall support device 2, and the cylindrical front end frame positioning device 3. The von Karman section shell 6 is assembled using the cylindrical front end frame positioning device 3 and the von Karman section positioning support device 4. The cylindrical shell 5 and the von Karman section shell 6 are connected using the cylindrical rear end frame positioning device 1, the cylindrical overall support device 2, the cylindrical front end frame positioning device 3, and the von Karman section positioning support device 4.

[0046] like Figures 3-4 As shown, the cylindrical section rear end frame positioning device 1 includes: a cylindrical section rear end frame support chassis 101, a cylindrical section rear end frame slide rail 102, a cylindrical section rear end frame chuck 103, a cylindrical section rear end frame drive handwheel 104, a cylindrical section housing rear end frame positioning block 105, and a cylindrical section housing rear end frame clamping plate 106; the cylindrical section rear end frame slide rail 102 is installed on the cylindrical section rear end frame support chassis 101, and the cylindrical section rear end frame chuck 103 is slidably installed on the cylindrical section rear end frame slide rail 102; the cylindrical section rear end frame drive handwheel 104 is rotatably installed on the cylindrical section rear end frame support chassis 101, and the cylindrical section rear end frame drive handwheel 104 is connected to and drives the cylindrical section rear end frame chuck 103 to perform linear motion; the cylindrical section housing rear end frame positioning block 105 and the cylindrical section housing rear end frame clamping plate 106 are installed on the drive cylindrical section rear end frame chuck 103. More specifically, there are four sets of rear end frame slide rails 102 for the cylindrical section, and the rear end frame chuck 103 for the cylindrical section is mounted on the mounting base of the rear end frame slide rail 102. The rear end frame drive handwheel 104 is a device that converts rotary motion into linear motion. One end of the drive handwheel 104 is fixed on the rear end frame support chassis 101, and the other end is mounted on the rear end frame chuck 103. When the drive handwheel 104 is rotated, the rear end frame chuck 103 will move linearly along the motion axis of the rear end frame slide rail 102. The rear end frame positioning blocks 105 of the cylindrical shell are arranged in an arc shape according to the outer contour of the product, with a quantity of 5-10. The rear end frame clamping plate 106 of the cylindrical shell is used to clamp the rear end frame 502 of the cylindrical shell 5.

[0047] like Figure 5As shown, the integral support device 2 for the cylindrical section includes: a support device chassis 201, a cylindrical section shell docking truss positioning clamping plate 202, a cylindrical section support device guide wheel 203, and a cylindrical section shell docking truss positioning clamping block 204; one or more support structures are installed on the support device chassis 201, the cylindrical section support device guide wheel 203 is provided on the support structure, the cylindrical section shell docking truss positioning clamping plate 202 is provided on both sides of the support structure, and multiple cylindrical section shell docking truss positioning clamping blocks 204 are provided on the cylindrical section shell docking truss positioning clamping plate 202.

[0048] like Figures 6-7 As shown, the front end frame positioning device 3 of the cylinder segment includes: a front end frame chassis 301, a front end frame drive handwheel 302, a front end frame slide rail 303, a front end frame chuck 304, a front end frame positioning block 305, a front end frame clamping plate 306, a von Carmen section housing positioning block 307, and a von Carmen section housing clamping plate 308; the front end frame slide rail 303 is installed on the front end frame chassis 301, and the front end frame chuck 304 is slidably installed on the front end frame slide rail 303; A drive handwheel 302 for the front end frame of the cylindrical section is rotatably mounted on the chassis 301 of the front end frame of the cylindrical section. The drive handwheel 302 is connected to and drives the chuck 304 of the front end frame of the cylindrical section to make linear motion. A positioning block 305 and a clamping plate 306 for the front end frame of the cylindrical section are provided on the side of the chuck 304 facing the overall support device 2 of the cylindrical section. A positioning block 307 and a clamping plate 308 for the housing of the von Karmen section are provided on the side of the chuck 304 facing the positioning support device 4 of the von Karmen section.

[0049] like Figure 8 As shown, the von Karmen section positioning support device 4 includes: a von Karmen section chassis 401, a von Karmen section chuck 402, a von Karmen section guide wheel 403, a von Karmen section docking truss positioning clamping plate 404, a von Karmen section front frame chuck 405, a von Karmen section front frame positioning block 406, and a von Karmen section front frame pressing plate 407; the von Karmen section chuck 402 and the von Karmen section front frame chuck 405 are installed on the von Karmen section chassis 401; the von Karmen section guide wheel 403 is provided on the von Karmen section chuck 402, and the von Karmen section docking truss positioning clamping plate 404 is provided on both sides of the von Karmen section chuck 402; the von Karmen section front frame chuck 405 is provided with the von Karmen section front frame positioning block 406 and the von Karmen section front frame pressing plate 407.

[0050] In one embodiment, the rear end frame positioning block 105, the front end frame positioning block 305, the von Karman section housing positioning block 307, and the front end frame positioning block 406 of the von Karman section housing are all provided with multiple blocks that are adapted to the outer contour shape of the von Karman section housing 5 or the von Karman section housing 6 and are arranged in an arc shape for positioning the von Karman section housing 5 or the von Karman section housing 6.

[0051] In one embodiment, the rolling direction of the guide wheel 203 of the cylindrical section support device and the guide wheel 403 of the von Kármán section is parallel to the axial direction of the cylindrical section housing 5 or the von Kármán section housing 6.

[0052] In one embodiment, the rear end frame drive handwheel 104 and the front end frame drive handwheel 302 of the cylinder section can achieve linear movement of the target by means of a screw and nut pair.

[0053] like Figures 9-10 As shown, the cylindrical shell 5 includes: a cylindrical section connecting truss 501, a cylindrical section rear end frame 502, a cylindrical section front end frame 503, and a cylindrical section composite material skin 504; the two ends of the cylindrical section composite material skin 504 are respectively connected to the cylindrical section rear end frame 502 and the cylindrical section front end frame 503, and both sides of the cylindrical section composite material skin 504 are connected to the cylindrical section connecting truss 501. The von Karman section shell 6 includes: a von Karman section connecting truss 601, a von Karman section rear end frame 602, a von Karman section front end frame 603, and a von Karman section composite material skin 604; the two ends of the von Karman section composite material skin 604 are respectively connected to the von Karman section rear end frame 602 and the von Karman section front end frame 603, and both sides of the von Karman section composite material skin 604 are connected to the von Karman section connecting truss 601.

[0054] The processing method for the cylindrical shell 5 and the von Kármán section shell 6 in this embodiment can be carried out using the following steps: Positioning the rear end frame 502 of the cylindrical section on the rear end frame chuck 103, and clamping it using the rear end frame positioning block 105 and the rear end frame clamping plate 106; positioning the front end frame 503 of the cylindrical section on the front end frame chuck 304, and clamping it using the front end frame positioning block 305 and the front end frame clamping plate 306; placing the composite material skin 504 of the cylindrical section onto the overall support device 2 using a lifting device; placing the connecting girder 501 of the cylindrical section on the connecting girder positioning clamping plate 202 of the cylindrical shell, and clamping it; adjusting the rear end frame chuck 103 and the front end frame by rotating the rear end frame drive handwheel 104. The chuck spacing 304 is adjusted to further adjust the distance between the rear end frame 502 and the front end frame 503 of the tube section; after adjustment, drilling and assembly are performed to connect the tube section connecting truss 501, rear end frame 502, front end frame 503, and composite material skin 504 to form the tube section shell 5; the von Kamen section rear end frame 602 is positioned on the tube section front end frame chuck 304 and clamped using the von Kamen section shell positioning block 307 and von Kamen section shell clamping plate 308; the von Kamen section front end frame 603 is positioned on the von Kamen section front end frame chuck 405 and clamped using the von Kamen section front end frame positioning block 406 and von Kamen section front end frame pressing plate 407; the von Kamen section composite material skin 604 is placed on the von Kamen section positioning support device using a lifting device. 4. Place the von Kamen section connecting truss 601 on the von Kamen section connecting truss positioning clamping plate 404 and clamp it in place; adjust the distance between the front end frame chuck 304 and the front end frame chuck 405 of the von Kamen section by rotating the front end frame drive handwheel 302, thereby adjusting the distance between the rear end frame 602 and the front end frame 603 of the von Kamen section; after adjustment, perform drilling and assembly connection, connecting the von Kamen section connecting truss 601, the rear end frame 602, the front end frame 603, and the composite material skin 604 of the von Kamen section to form the von Kamen section shell 6; remove the connection between the front end frame 503 and the front end frame clamping plate 306 of the von Kamen section, and remove the connection between the rear end frame 602 and the shell clamping plate 308 of the von Kamen section; adjust the cylinder... The rear end frame drive handwheel 104 and the front end frame drive handwheel 302 of the cylindrical section are used to create space, and the front end frame chuck 304 of the cylindrical section is lifted out. At this time, there is no obstruction between the cylindrical section shell 5 and the von Kármán section shell 6. The connection between the cylindrical section docking truss 501 and the cylindrical section shell docking truss positioning clamping plate 202 is removed. The rear end frame drive handwheel 104 of the cylindrical section is adjusted so that the cylindrical section shell 5 is docked with the von Kármán section shell 6 under the action of the guide wheel 203 of the cylindrical section support device. When the front end frame 503 of the cylindrical section contacts and docks with the rear end frame 602 of the von Kármán section, it is tightened using standard parts to form a 1 / 4 annular shell structure assembly of the cylindrical section shell 5 and the von Kármán section shell 6. Finally, the four sets of cylindrical section shell 5 and von Kármán section shell 6 assemblies can be combined to form a cylindrical satellite fairing cabin.

[0055] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0056] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. An assembly device for an ultra-large composite material semi-shell structure, characterized in that, include: The rear end frame positioning device (1), the overall support device for the cylinder section (2), the front end frame positioning device for the cylinder section (3), and the von Kármán section positioning support device (4). The rear end frame positioning device (1), the overall support device (2), the front end frame positioning device (3), and the von Kármán segment positioning support device (4) are arranged in a straight line in sequence. The cylindrical shell (5) is assembled using the cylindrical rear end frame positioning device (1), the cylindrical overall support device (2), and the cylindrical front end frame positioning device (3). The von Karman section shell (6) is assembled using the cylindrical front end frame positioning device (3) and the von Karman section positioning support device (4). The cylindrical shell (5) and the von Karman section shell (6) are connected using the cylindrical rear end frame positioning device (1), the cylindrical overall support device (2), the cylindrical front end frame positioning device (3), and the von Karman section positioning support device (4). The axial directions of the cylindrical shell (5) and the von Kármán section shell (6) are parallel to the straight line arrangement direction of the cylindrical rear end frame positioning device (1), the cylindrical overall support device (2), the cylindrical front end frame positioning device (3) and the von Kármán section positioning support device (4). The cylindrical section rear end frame positioning device (1) includes: cylindrical section rear end frame support chassis (101), cylindrical section rear end frame slide rail (102), cylindrical section rear end frame chuck (103), cylindrical section rear end frame drive handwheel (104), cylindrical section shell rear end frame positioning block (105), and cylindrical section shell rear end frame clamping plate (106). The rear end frame slide rail (102) of the cylindrical section is installed on the rear end frame support chassis (101), and the rear end frame chuck (103) of the cylindrical section is slidably installed on the rear end frame slide rail (102); The drive handwheel (104) of the rear end frame of the cylindrical section is rotatably mounted on the support chassis (101) of the rear end frame of the cylindrical section. The drive handwheel (104) of the rear end frame of the cylindrical section is connected to and drives the chuck (103) of the rear end frame of the cylindrical section to make linear motion. The rear end frame chuck (103) of the drive cylinder section is equipped with a rear end frame positioning block (105) and a rear end frame clamping plate (106) of the cylinder section housing. The integral support device (2) for the cylindrical section includes: a support device chassis (201), a cylindrical section shell docking truss positioning clamping plate (202), a cylindrical section support device guide wheel (203), and a cylindrical section shell docking truss positioning clamping block (204). One or more support structures are installed on the chassis (201) of the support device. The support structure is provided with a cylindrical section support device guide wheel (203). The two sides of the support structure are provided with cylindrical section shell docking truss positioning clamping plates (202). The cylindrical section shell docking truss positioning clamping plates (202) are provided with multiple cylindrical section shell docking truss positioning clamping blocks (204). The front end frame positioning device (3) of the cylindrical section includes: a front end frame chassis (301), a front end frame drive handwheel (302), a front end frame slide rail (303), a front end frame chuck (304), a front end frame positioning block (305), a front end frame clamping plate (306), a von Carmen section housing positioning block (307), and a von Carmen section housing clamping plate (308). The front end frame slide rail (303) of the cylindrical section is installed on the chassis (301) of the front end frame of the cylindrical section, and the front end frame chuck (304) of the cylindrical section is slidably installed on the front end frame slide rail (303); The front end frame drive handwheel (302) of the cylindrical section is rotatably mounted on the chassis (301) of the front end frame of the cylindrical section. The front end frame drive handwheel (302) is connected to and drives the front end frame chuck (304) of the cylindrical section to make linear motion. The front end frame chuck (304) of the cylindrical section is provided with a front end frame positioning block (305) and a front end frame clamping plate (306) on the side facing the overall support device (2) of the cylindrical section. The front end frame chuck (304) of the cylindrical section is provided with a von Karman section housing positioning block (307) and a von Karman section housing clamping plate (308) on the side facing the von Karman section positioning support device (4). The von Karman section positioning support device (4) includes: von Karman section chassis (401), von Karman section chuck (402), von Karman section guide wheel (403), von Karman section docking truss positioning clamping plate (404), von Karman section front end frame chuck (405), von Karman section front end frame positioning block (406), and von Karman section front end frame pressing plate (407). The Von Kármán section chassis (401) is equipped with a Von Kármán section chuck (402) and a Von Kármán section front end frame chuck (405). The von Kármán section chuck (402) is provided with a von Kármán section guide wheel (403), and the von Kármán section docking truss positioning clamping plate (404) is provided on both sides of the von Kármán section chuck (402). The von Kármán segment front end frame chuck (405) is provided with a von Kármán segment front end frame positioning block (406) and a von Kármán segment front end frame clamping plate (407).

2. The assembly device for ultra-large composite material semi-shell structure according to claim 1, characterized in that: The rear end frame positioning block (105), the front end frame positioning block (305), the von Karman section shell positioning block (307), and the von Karman section front end frame positioning block (406) are all provided with multiple blocks that are adapted to the outer contour shape of the cylindrical shell (5) or the von Karman section shell (6) and are arranged in an arc shape.

3. The assembly device for ultra-large composite material semi-shell structure according to claim 1, characterized in that: The rolling direction of the guide wheel (203) of the cylindrical section support device and the guide wheel (403) of the von Kármán section is parallel to the axial direction of the cylindrical section shell (5) or the von Kármán section shell (6).

4. The assembly device for an ultra-large composite material semi-shell structure according to claim 1, characterized in that, The cylindrical shell (5) includes: a cylindrical docking truss (501), a cylindrical rear end frame (502), a cylindrical front end frame (503), and a cylindrical composite material skin (504). The two ends of the composite material skin (504) of the cylindrical section are respectively connected to the rear end frame (502) and the front end frame (503) of the cylindrical section, and both sides of the composite material skin (504) of the cylindrical section are connected to the docking truss (501).

5. The assembly device for an ultra-large composite material semi-shell structure according to claim 4, characterized in that, The von Kármán section shell (6) includes: von Kármán section connecting truss (601), von Kármán section rear end frame (602), von Kármán section front end frame (603), and von Kármán section composite material skin (604). The two ends of the von Kármán section composite material skin (604) are respectively connected to the von Kármán section rear end frame (602) and the von Kármán section front end frame (603), and both sides of the von Kármán section composite material skin (604) are connected to the von Kármán section docking truss (601).

6. A processing method for the ultra-large composite material semi-shell structure assembly device as described in claim 5, characterized in that, Includes the following steps: Step S1: Position the rear end frame (502) of the cylinder section on the rear end frame chuck (103) of the cylinder section, and use the positioning block (105) and clamping plate (106) of the rear end frame of the cylinder section shell to position and clamp it. Position the front end frame (503) of the cylinder section on the front end frame chuck (304) and clamp it using the front end frame positioning block (305) and the front end frame clamping plate (306). Step S2: Use a lifting device to place the composite material skin (504) of the cylinder section onto the overall support device (2) of the cylinder section; Place the tube segment docking truss (501) on the tube segment shell docking truss positioning clamping plate (202) and position and clamp it; Step S3: Adjust the distance between the rear end frame chuck (103) and the front end frame chuck (304) of the cylinder section by rotating the rear end frame drive handwheel (104), thereby adjusting the distance between the rear end frame (502) and the front end frame (503) of the cylinder section. Step S4: After adjustment, drilling and assembly connection are performed to connect the tube segment connecting truss (501), tube segment rear end frame (502), tube segment front end frame (503) and tube segment composite material skin (504) to form the tube segment shell (5). Step S5: Position the von Kármán section rear end frame (602) on the tube section front end frame chuck (304), and use the von Kármán section shell positioning block (307) and the von Kármán section shell clamping plate (308) for positioning and clamping. Position the front end frame (603) of the von Kármán section on the chuck (405) of the von Kármán section, and clamp it using the positioning block (406) and the clamping plate (407) of the von Kármán section. Step S6: Use a lifting device to place the von Kármán section composite material skin (604) onto the von Kármán section positioning support device (4); Place the Von Kármán section docking truss (601) on the Von Kármán section docking truss positioning clamping plate (404) and clamp it in place; Step S7: Adjust the distance between the front end frame chuck (304) and the von Karman section front end frame chuck (405) by rotating the front end frame drive handwheel (302) of the cylinder section, thereby adjusting the distance between the rear end frame (602) and the front end frame (603) of the von Karman section. Step S8: After adjustment, drilling and assembly connection are performed to connect the von Kármán section connecting truss (601), the von Kármán section rear end frame (602), the von Kármán section front end frame (603) and the von Kármán section composite material skin (604) to form the von Kármán section shell (6). Step S9: Disconnect the connection between the front end frame (503) of the cylinder section and the clamping plate (306) of the front end frame of the cylinder section, and disconnect the connection between the rear end frame (602) of the von Karman section and the clamping plate (308) of the von Karman section shell. Step S10: Adjust the drive handwheel (104) of the rear end frame of the cylinder section and the drive handwheel (302) of the front end frame of the cylinder section to make room and lift out the chuck (304) of the front end frame of the cylinder section. At this time, there is no obstruction between the cylinder section housing (5) and the von Karman section housing (6). Step S11: Disconnect the connection between the tube section docking truss (501) and the tube section shell docking truss positioning clamping plate (202), and adjust the tube section rear end frame drive handwheel (104) so ​​that the tube section shell (5) docks with the von Kármán section shell (6) under the action of the tube section support device guide wheel (203). Step S12: When the front end frame (503) of the cylindrical section comes into contact with the rear end frame (602) of the von Kármán section, it is tightened using standard parts to form a combination of the cylindrical section shell (5) and the von Kármán section shell (6) with a 1 / 4 annular shell structure. In step S13, the final combination of the four sets of cylindrical shell sections (5) and the von Kármán shell section (6) can be assembled into a cylindrical satellite fairing body.

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