Aircraft super panel internal and external conversion method and device

Abstract

This application relates to a method and apparatus for converting the inner and outer sides of an aircraft super panel, belonging to the technical field of large aircraft manufacturing. The apparatus includes an inner panel tooling, a conversion component, and an outer panel tooling. The inner panel tooling includes two parallel tracks and multiple panel mounting brackets located in the track mounting area. The conversion component is located in the transfer area of ​​the tracks and on the outside of the two tracks. The outer panel tooling includes a transfer fixing bracket connected to the top of the conversion component and multiple panel transfer brackets located below the transfer fixing bracket. This application replaces the support column structure surrounding the inner panel tooling in the traditional technology by setting two parallel tracks in the inner panel tooling and integrating the conversion component in the transfer area outside the tracks. This modular layout eliminates the need to reserve additional support device installation space around the tooling, allowing the conversion area of ​​the inner and outer panel tooling to be concentrated within the effective working range of the track extension, saving 30%-50% of the ground area compared to the prior art.

Description

Technical Field

[0001] This application relates to the technical field of large aircraft manufacturing, and in particular to a method and apparatus for converting the internal and external surfaces of aircraft super panels. Background Technology

[0002] In the field of large aircraft manufacturing, superfabricated panels, as core components constituting critical parts such as the fuselage and wings, directly impact the overall performance and production schedule of the aircraft due to their manufacturing precision and assembly efficiency. To ensure the dimensional accuracy of superfabricated panels during assembly, internal and external support fixtures are typically used to position and support the inner and outer sides of the panel assembly, respectively. During the assembly process, after the inner side of the panel assembly is assembled on the internal support fixture, it needs to be transferred to the external support fixture for subsequent outer side processing or assembly. This process involves precise conversion between the internal and external support fixtures.

[0003] Currently, the industry-standard technology for converting between internal and external conformal fittings primarily relies on hoisting for transfer: after the panel assembly completes its predetermined assembly process on the internal conformal fitting, the external conformal fitting is hoisted to a position directly above it using gantry cranes or other hoisting equipment. The external conformal fitting is then positioned on pre-fixed support columns around the internal conformal fitting. Subsequently, the internal conformal fitting activates its lifting mechanism, raising the panel assembly to a predetermined height that aligns with the external conformal fitting, thus completing the transfer and positioning of the panel assembly from the internal to the external conformal fitting, achieving the conversion between internal and external conformal fittings. However, the aforementioned existing conversion technology has several limitations in practical applications, mainly in the following aspects:

[0004] 1. Large footprint: Since each set of internal protective tooling requires a separate set of support devices (such as support columns) around it to specifically support and support the external protective tooling, this significantly increases the installation and operating space required for the entire tooling system. In aircraft manufacturing workshops with limited production space, this can easily lead to low space utilization.

[0005] 2. Stringent precision requirements for support devices: In order to meet the universal compatibility requirements of the same set of support devices for different specifications or models of external protective tooling, the relative dimensional accuracy of the installation position, height and other dimensions of the support devices must be strictly controlled. This not only increases the difficulty of processing and installing the support devices, but also increases the debugging cost and cycle of the tooling system.

[0006] 3. May cause product deformation: During the lifting process, the internal protective fixture needs to directly bear the entire weight of the wall panel assembly and drive it to rise. The wall panel assembly is usually large in size and relatively weak in rigidity. Under the action of the lifting force and the influence of the posture change during the rising process, it is easy to cause unexpected deformation due to uneven force or insufficient rigidity, thereby affecting the final assembly accuracy and product quality of the wall panel assembly.

[0007] Regarding the aforementioned technologies, the inventors believe that existing internal and external conformal tooling conversion technologies have drawbacks such as large footprint, poor adaptability of support devices, and easy impact on the conversion accuracy and quality of wall panels. Summary of the Invention

[0008] To address the aforementioned technical problems, this application provides a method and apparatus for converting the interior and exterior of an aircraft super panel.

[0009] The method and apparatus for converting the interior and exterior of aircraft super panels provided in this application adopt the following technical solution:

[0010] An aircraft super panel internal and external conversion device includes an internal protective fixture, a conversion component, and an external protective fixture. The internal protective fixture includes two parallel tracks and multiple panel mounting brackets located in the track mounting area. The conversion component is located in the transfer area of ​​the tracks and outside the two tracks. The external protective fixture includes a transfer fixing bracket connected to the top of the conversion component and multiple panel transfer brackets located below the transfer fixing bracket.

[0011] By adopting the above technical solution, the traditional technology replaces the support column structure surrounding the inner protective tooling by setting two parallel tracks in the inner protective tooling and integrating the conversion component in the transfer area outside the tracks. This modular layout eliminates the need to reserve additional support installation space around the tooling, allowing the conversion area of ​​the inner and outer protective tooling to be concentrated within the effective working range of the track extension, saving 30%-50% of the ground area compared to existing technologies. The outer protective tooling precisely connects to the top of the conversion component through the transfer fixing frame, replacing the passive positioning mode that relies on the consistency of the support column height in traditional technologies. This eliminates the need for millimeter-level precision calibration of the support column position, shortens the tooling installation and debugging time, and reduces the processing cost and installation difficulty of the support structure.

[0012] Preferably, the inner retaining fixture further includes two inner retaining frames respectively connected to both sides of the track and a limiting rod disposed on the side of the inner retaining frame near the transfer area. The two limiting rods are arranged opposite to each other, and the wall panel mounting frames are spaced apart and fixed to the inner retaining frame.

[0013] By adopting the above technical solution, two inner retaining frames are connected to both sides of the track to form a symmetrical frame structure. With the help of the limiting rods located on the side of the inner retaining frame near the transfer area, a three-dimensional limiting system is constructed in the horizontal and vertical directions. The relatively set limiting rods can not only limit the extreme position of the wall panel mounting frame in the transfer area and prevent it from leaving the track, but also achieve millimeter-level positioning calibration during the transfer of the wall panel assembly through precise cooperation with the conversion component or the outer retaining tooling. This improves the overall positioning accuracy of the wall panel assembly during the conversion process, which is significantly better than the positioning effect of traditional tooling.

[0014] Preferably, the conversion assembly includes two sets of symmetrically arranged conversion frames. Each conversion frame includes a working platform, fixed columns respectively located on both sides of the working platform, a control lifting platform located on the top of the fixed column, and a ball socket slidably connected to the control lifting platform near the track. The ball socket has multiple mounting holes along its circumference, and a positioning column is provided at the inner circle of the ball socket. The top of the positioning column has a hemispherical positioning hole.

[0015] By adopting the above technical solution, two sets of symmetrically arranged conversion frames, combined with ball sockets and positioning column structures, form a comprehensive and precise positioning system. The multiple mounting holes distributed circumferentially in the ball sockets can be quickly locked with the transfer fixing frame of the outer protective tooling through positioning pins, achieving circumferential positioning in the horizontal direction. The positioning columns in the inner ring and the top hemispherical positioning holes form a spherical fit with the transfer fixing frame of the outer protective tooling. Even if there is a slight angular deviation, it can be adaptively adjusted by the spherical surface. Compared with traditional hoisting conversion technology, this structure significantly reduces the overall positioning error of the panel assembly during the transfer process, effectively ensuring the assembly accuracy of the aircraft super panel.

[0016] Preferably, the control lifting platform includes a lifting base, a drive motor disposed on the top of the lifting base, a lead screw connected to the output shaft of the drive motor via a transmission assembly, lifting slide rails disposed on both sides of the lifting base, and a sliding block slidably connected to the lifting slide rails and screwed to the lead screw. One side of the sliding block protrudes to form a mounting portion, and the ball socket is disposed on the mounting portion.

[0017] By adopting the above technical solution, the control lifting platform uses a drive motor-screw transmission assembly structure design. Utilizing the high precision characteristics of screw transmission, the accuracy of lifting displacement can be significantly improved. The lifting slide rails are symmetrically arranged on both sides of the lifting seat, providing stable guiding support for the sliding block. Combined with the linear transmission of the screw, it effectively avoids swaying or offset caused by lateral forces during lifting, resulting in a smaller swing amplitude of the ball socket during lifting. This high-precision, low-sway lifting control ensures precise vertical docking between the outer protective tooling and the wall panel assembly, providing a reliable guarantee for overall positioning accuracy. It is especially suitable for aircraft super wall panel manufacturing scenarios with extremely high assembly precision requirements.

[0018] Preferably, at least two limit switches are provided at intervals along the height direction on the inner wall of the lifting seat, and a detection rod is provided on the side of the sliding block near the inner wall of the lifting seat, and the detection rod is provided with a detection surface that contacts the limit switches.

[0019] By adopting the above technical solution, at least two limit switches are set at intervals along the height direction on the inner wall of the lifting seat. Together with the detection rod and detection surface on the sliding block, a dual or even multiple safety protection mechanism is constructed. When the sliding block drives the ball socket to rise or fall, the detection surface on the detection rod moves with the sliding block. Once the limit switch is touched, the system immediately triggers the emergency braking program, and the drive motor stops running, effectively avoiding the overtravel phenomenon caused by the sliding block losing control.

[0020] Preferably, the transfer fixing frame includes a frame mounting part and docking parts respectively provided on both sides of the frame mounting part. Each of the wall panel transfer frames is connected to the frame mounting part at intervals. Each docking part corresponds to each fixing column. The bottom of the docking part is provided with a rotating shaft corresponding to the positioning hole and a connecting hole corresponding to the mounting hole.

[0021] By adopting the above technical solution and using a modular design of the fixing part and multiple docking parts, each docking part corresponds one-to-one with the fixing post of the conversion component. Through the cooperation of the bottom rotating shaft and positioning hole, and the connection hole and mounting hole, the external protective tooling and the conversion component can be quickly and accurately docked. The spherical cooperation between the rotating shaft and the hemispherical positioning hole allows for automatic correction under a certain angular deviation, so that the docking process does not require repeated manual adjustment of the angle. Only the docking part needs to be aligned with the fixing post to complete the initial positioning in a very short time.

[0022] Preferably, the shape of the wall panel transfer frame is consistent with the shape of the wall panel mounting frame, and clamping members are provided at the bottom of both sides of the wall panel transfer frame. The clamping members are used to clamp the super wall panels on the corresponding wall panel mounting frame. The clamping members include an adjusting plate at the bottom of the wall panel transfer frame, a sliding groove at the bottom of the adjusting plate, an L-shaped mounting plate slidably connected in the sliding groove, two connecting plates fixed to the mounting plate, a driving plate rotatably connected to the two connecting plates respectively, a driving rod connected to the ends of the two connecting plates, an adjusting rod located between the two connecting plates and rotatably connected to the driving plate and the connecting plate respectively, and a clamping rod connected to the adjusting rod. A clamping space is formed between the clamping rod and the vertical plate of the mounting plate. An adjusting hole is opened at the top of the adjusting rod along its height direction, and the clamping rod is slidably connected in the adjusting hole and fixed by a nut.

[0023] By adopting the above technical solution, when the clamping component of the wall panel transfer frame clamps the super wall panel on the wall panel mounting frame, the shape compatibility between the two can control the relative position deviation of the wall panel before and after transfer within a small range, avoiding wall panel misalignment or deformation caused by tooling shape mismatch. In addition, the clamping component adopts a sliding adjustment structure of adjustment plate-slide groove-mounting plate, combined with the linkage mechanism of drive plate-drive rod-adjusting rod, which can realize flexible adjustment of clamping space. The drive rod drives the drive plate to rotate, and the adjusting rod moves between the connecting plates, thereby changing the distance between the clamping rod and the vertical plate of the mounting plate to adapt to super wall panels of different thicknesses. The adjustment hole at the top of the adjusting rod, combined with the nut design, allows the clamping rod to be adjusted in height in the vertical direction, so that the clamping component can adapt to the edge of the wall panel with complex curved surface.

[0024] Preferably, the wall panel transfer frame includes a fixed part and two rotating parts rotatably connected to the bottom of the fixed part. Two clamping members are respectively disposed at the bottom of the two rotating parts. Rotating plates are respectively provided on two opposite sides of the bottom of the fixed part. The upper ends of the two rotating plates are connected by a rotating shaft on one side and by a pin on the other side. The lower ends are fixed to the top of the rotating part. The fixed part and the rotating part are respectively provided with flip-fixing holes. The two flip-fixing holes are aligned and fixed when the rotating part is flipped. The bottom of the clamping plate of the rotating part is provided with locking holes corresponding to the wall panel. A telescopic rod is rotatably connected to the fixed part through a mounting base. The mounting base is correspondingly disposed to the rotating plate, and the bottom of the telescopic rod is rotatably connected to the rotating plate near the bottom.

[0025] By adopting the above technical solution, the rotating connection design of the rotating part and the fixed part allows the locking structure and clamping parts on the outer retainer to remain in an upward state before conversion, completely avoiding the space where the wall panel is located. After the inner retainer tooling moves the wall panel to the designated position, the rotating part is controlled to drive the locking structure and clamping parts to flip down synchronously and accurately align with the wall panel. This structure reduces the risk of interference during the conversion process to zero, avoids equipment failure and product scrapping caused by interference, and significantly improves the safety and success rate of the conversion operation.

[0026] Preferably, a pre-positioning component is provided between the conversion component and the transfer fixing frame, and a detection and leveling component is provided on the transfer fixing frame to detect whether the outer protective tooling is tilted, and to control the leveling of the rotating fixing frame when tilted, while controlling the pre-positioning component to stop positioning until the outer protective tooling is in a horizontal state; the pre-positioning component includes a plurality of pneumatic positioning pins evenly distributed around the ball socket on the top of the mounting part and a plurality of positioning holes corresponding one-to-one with each pneumatic positioning pin on the docking part of the frame body, and a second pressure sensor is integrated inside the positioning pin; the detection and leveling component includes leveling legs around the bottom of the docking part, a gravity pendulum located at the center of gravity of the mounting part of the frame body, and a trigger part connected to the gravity pendulum through a linkage structure, and the pneumatic positioning pins, the trigger part, and the pressure sensor are all electrically connected to the controller.

[0027] By adopting the above technical solution, the pneumatic positioning pins evenly distributed around the circumference of the ball socket cooperate with the positioning holes on the docking part of the frame to achieve preliminary accurate positioning between the conversion component and the transfer fixing frame, reducing installation errors and laying the foundation for subsequent accurate installation and docking. In addition, the tilt of the outer protective fixture is detected by a gravity pendulum and transmitted to the triggering part through the linkage structure, which in turn controls the leveling legs to level. This gravity-based leveling method can accurately detect the tilt of the fixture and make timely adjustments to ensure that the outer protective fixture is in a horizontal state, avoiding installation errors caused by tilt.

[0028] The method for converting the interior and exterior of aircraft super panels includes the following steps:

[0029] S1: Install the super wall panels onto the respective wall panel mounting brackets, and then slide them to the transfer area via the tracks;

[0030] S2: Move the outer protective fixture to the transfer area and fix it to the top of the conversion component through the transfer fixing frame. Use the conversion component to drive the outer protective fixture to move down a predetermined distance so that the wall panel transfer frame and the wall panel mounting frame correspond one-to-one.

[0031] S3: Use the wall panel transfer rack to hold the wall panels on the wall panel mounting rack and transfer the super wall panel to the wall panel transfer rack;

[0032] S4: The conversion component moves the outer protective tooling upwards, and after the transfer fixing frame separates from the top of the conversion component, the outer protective tooling is transferred to the aircraft fuselage assembly area.

[0033] By adopting the above technical solutions, the traditional hoisting and transfer mode can be replaced by precise docking of the track sliding and tooling. This can significantly shorten the wall panel conversion time and significantly reduce the difficulty and intensity of manual operation through modular and process-oriented operation. Moreover, the external protection tooling precisely docks with the top of the conversion component through the transfer fixing frame, replacing the passive positioning mode that relies on the consistency of the support column height in the traditional technology. This eliminates the need for millimeter-level precise calibration of the support column position, shortens the tooling installation and debugging time, and reduces the processing cost and installation difficulty of the support structure.

[0034] In summary, this application includes at least one of the following beneficial technical effects:

[0035] This invention replaces the support column structure surrounding the inner retaining tooling in traditional technology by setting two parallel tracks in the inner retaining tooling and integrating the conversion component in the transfer area outside the tracks. This modular layout eliminates the need to reserve additional support installation space outside the tooling, and concentrates the conversion area of ​​the inner and outer retaining tooling within the effective working range of the track extension, saving 30%-50% of the ground area compared to the prior art.

[0036] In this invention, the external protective tooling precisely connects with the top of the conversion component via a transfer fixing frame, replacing the passive positioning mode that relies on the consistent height of the support columns in traditional technology. This eliminates the need for millimeter-level precision calibration of the support column positions, shortens the tooling installation and debugging time, and reduces the processing cost and installation difficulty of the support structure. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the internal and external conversion device for the aircraft super panel in this invention.

[0038] Figure 2 This is a partial structural schematic diagram of the internal protection tooling in this invention.

[0039] Figure 3 This is a schematic diagram of the conversion component in this invention.

[0040] Figure 4 This is a schematic diagram of the structure of the control lifting platform in this invention.

[0041] Figure 5 This is a rear view structural diagram of the conversion component in this invention.

[0042] Figure 6 This is a top view of the ball socket in this invention.

[0043] Figure 7 This is a schematic diagram of the external protective tooling in this invention.

[0044] Figure 8 This is a partial top view of the external conforming tooling in this invention.

[0045] Figure 9 This is a schematic diagram of the wall panel transfer frame in this invention.

[0046] Figure 10 yes Figure 9 A magnified view of A in the middle.

[0047] Figure 11 This is a schematic diagram of the clamping component in this invention.

[0048] Figure 12 This is a top view of the transfer fixing frame in this invention.

[0049] Figure 13 This is a schematic diagram of the detection and leveling component in this invention.

[0050] Figure 14 This is a top view of the mounting section in this invention.

[0051] Figure 15 This is a side sectional view of the mounting part in this invention.

[0052] Figure 16 This is a schematic diagram of the leveling support leg in this invention.

[0053] Explanation of reference numerals in the attached drawings: 1. Inner protective fixture; 11. Rail; 12. Wall panel mounting bracket; 13. Inner protective frame; 14. Limit rod; 2. Conversion assembly; 21. Work platform; 22. Fixed column; 23. Control lifting platform; 231. Lifting seat; 232. Drive motor; 233. Lead screw; 234. Lifting slide rail; 235. Sliding block; 236. Limit switch; 237. Detection rod; 238. Detection surface; 24. Ball socket; 25. Mounting hole; 26. Positioning post; 27. Positioning hole; 3. External protective fixture; 31. Transfer fixing frame; 311. Frame mounting part; 312. Connecting part; 313. Rotating shaft; 314. Connecting hole; 32. Wall panel transfer frame; 321. Fixing part; 322. Rotating part; 323. Rotating plate; 324. Rotating shaft; 325. Pin; 326. Flip fixing hole; 327. Locking hole; 328. Telescopic rod; 329. Mounting base; 33. Clamping component; 331. Adjusting plate; 332. Slide groove; 333. Mounting plate; 334. Connecting plate; 335. Drive plate; 336. Drive rod; 337. Adjusting rod; 338. Clamping rod; 339. Adjusting hole; 340. Nut; 4. Pre-positioning assembly; 41. Pneumatic positioning pin; 42. Pre-positioning hole; 43. Second pressure sensor; 5. Detection and adjustment... 51. Leveling component; 52. Leveling leg; 53. Tilt sensor; 54. Spherical pad; 55. Leveling reference surface; 56. Gravity pendulum; 57. Hinge rod; 58. Permanent magnet; 59. Electromagnetic suction base; 60. First connecting rod; 61. Second connecting rod; 62. Trigger block; 63. Leveling trigger switch; 64. Hydraulic guide rod; 7. Distance sensor; 8. Magnetorheological damper; 9. First pressure sensor; 10. Guide groove. Detailed Implementation

[0054] The following is in conjunction with the appendix Figure 1-16 This application will be described in further detail.

[0055] This application discloses a method and apparatus for converting the interior and exterior of an aircraft superfoss panel. (Refer to...) Figure 1-16The system includes an inner protective fixture 1, a conversion assembly 2, and an outer protective fixture 3. The inner protective fixture 1 includes two parallel tracks 11 and multiple wall panel mounting brackets 12 located in the installation area of ​​the tracks 11. The conversion assembly 2 is located in the transfer area of ​​the tracks 11 and is located outside the two tracks 11. The outer protective fixture 3 includes a transfer fixing bracket 31 connected to the top of the conversion assembly 2 and multiple wall panel transfer brackets 32 located below the transfer fixing bracket 31. The inner protective fixture 1 also includes two inner protective brackets 13 connected to both sides of the tracks 11 and a limiting rod 14 located on the side of the inner protective bracket 13 near the transfer area. The two limiting rods 14 are arranged opposite each other. The wall panel mounting brackets 12 are spaced apart and are all fixed to the inner protective brackets 13. The conversion assembly 2 includes two sets of symmetrically arranged conversion brackets. Each conversion bracket includes a work platform 21 and fixed columns 22 located on both sides of the work platform 21, a control lifting platform 23 located on the top of the fixed column 22, and a control lifting platform 23 located on the top of the fixed column 22. A ball socket 24 is slidably connected to the control lifting platform 23 near the rail 11. The ball socket 24 has multiple mounting holes 25 along its circumference, and a positioning post 26 is provided at the inner circle of the ball socket 24. The top of the positioning post 26 has a hemispherical positioning hole 27. The control lifting platform 23 includes a lifting seat 231, a drive motor 232 located at the top of the lifting seat 231, a lead screw 233 connected to the output shaft of the drive motor 232 through a transmission component, lifting slide rails 234 located on both sides of the lifting seat 231, and a sliding block 235 slidably connected to the lifting slide rails 234 and screwed to the lead screw 233. One side of the sliding block 235 protrudes to form a mounting part, and the ball socket 24 is located on the mounting part. At least two limit switches 236 are spaced apart along the height direction on the inner wall of the lifting seat 231. A detection rod 237 is provided on the side of the sliding block 235 near the inner wall of the lifting seat 231. The detection rod 237 has a detection surface 238 that contacts the limit switch 236.

[0056] The operator installs the aircraft super panel onto the panel mounting bracket 12 of the inner protective fixture 1. After installation, the panel mounting bracket 12 slides along the two parallel tracks 11 of the inner protective fixture 1 towards the transfer area. The tracks 11 provide stable movement guidance for the panel mounting bracket 12, and with the limiting action of the limit rod 14, the panel mounting bracket 12 can slide smoothly and accurately to the designated position in the transfer area, waiting to dock with the outer protective fixture 3; or, displacement sensors installed on the inner wall of the fixed column 22 (facing the transfer area) are used to detect the displacement of the panel mounting bracket 12; then, the outer protective fixture 3 is moved to the transfer area using hoisting equipment, so that the transfer fixing bracket 31 of the outer protective fixture 3 corresponds to the top of the conversion assembly 2; then, the transfer fixing bracket 31 and the mounting hole 25 on the ball socket 24 at the top of the conversion assembly 2 are connected by a locating pin to achieve initial positioning, confirming... The outer conforming fixture 3 and the conversion assembly 2 are accurately aligned in the horizontal direction. Subsequently, the control lifting platform 23 starts working, and the drive motor 232 drives the lead screw 233 to rotate through the transmission assembly. The transmission assembly uses two meshing gears, one sleeved on the output shaft of the drive motor 232 and the other sleeved on the top of the lead screw 233. Since the lead screw 233 is screwed to the sliding block 235, the sliding block 235, under the guidance of the lifting slide rail 234, drives the ball socket 24 and the outer conforming fixture 3 to move downward a predetermined distance. During the descent, the limit switch 236 on the inner wall of the lifting seat 231 cooperates with the detection surface 238 on the detection rod 237 of the sliding block 235 to monitor the position of the sliding block 235 in real time. When the predetermined position is reached, the limit switch 236 triggers a signal, and the drive motor 232 stops rotating, so that the wall panel transfer frame 32 corresponds one-to-one with the wall panel mounting frame 12.

[0057] In some embodiments, the transfer mounting frame 31 includes a frame mounting portion 311 and docking portions 312 respectively disposed on both sides of the frame mounting portion 311. Each wall panel transfer frame 32 is spaced apart and connected to the frame mounting portion 311. Each docking portion 312 corresponds to each fixing post 22. The bottom of the docking portion 312 is provided with a rotating shaft 313 corresponding to the positioning hole 27 and a connecting hole 314 corresponding to the mounting hole 25. The shape of the wall panel transfer frame 32 is consistent with the shape of the wall panel mounting frame 12, and clamping members 33 are provided at the bottom of both sides of the wall panel transfer frame 32 for clamping. Corresponding to the super wall panel on the wall panel mounting bracket 12; the clamping member 33 includes an adjusting plate 331 at the bottom of the wall panel transfer bracket 32, a slide groove 332 at the bottom of the adjusting plate 331, an L-shaped mounting plate 333 slidably connected in the slide groove 332, two connecting plates 334 fixed to the mounting plate 333, a drive plate 335 rotatably connected to the two connecting plates 334 respectively, a drive rod 336 connected to the ends of the two connecting plates 334, an adjusting rod 337 located between the two connecting plates 334 and rotatably connected to the drive plate 335 and the connecting plate 334 respectively, and a connection to the adjusting rod 337. The clamping rod 338 forms a clamping space with the vertical plate of the mounting plate 333; the top of the adjusting rod 337 has an adjusting hole 339 along its height direction, the clamping rod 338 is slidably connected in the adjusting hole 339 and fixed by a nut 340; the wall panel transfer frame 32 includes a fixed part 321 and two rotating parts 322 rotatably connected to the bottom of the fixed part 321, and two clamping members 33 are respectively provided at the bottom of the two rotating parts 322; two opposite sides of the bottom of the fixed part 321 are respectively provided with rotating plates 323, and the upper side of the two rotating plates 323 is rotated by a rotating plate. The shaft 324 is connected on the other side, and the pin 325 is connected on the other side. The lower end is fixed to the top of the rotating part 322. The fixed part 321 and the rotating part 322 are respectively provided with flip fixing holes 326. The two flip fixing holes 326 are aligned and fixed when the rotating part 322 is flipped. The bottom of the card plate of the rotating part 322 is provided with locking holes 327 that correspond to the wall plate. The fixed part 321 is rotatably connected to the telescopic rod 328 through the mounting base 329. The mounting base 329 is correspondingly set with the rotating plate 323, and the bottom of the telescopic rod 328 is rotatably connected to the rotating plate 323 near the bottom.

[0058] After the outer protective fixture 3 is moved to the transfer area, the docking part 312 of the transfer fixing frame 31 corresponds one-to-one with the fixing post 22 of the conversion component 2. The rotating shaft 313 at the bottom of the docking part 312, the hemispherical positioning hole 27 at the top of the positioning post 26, the connecting hole 314, and the mounting hole 25 of the ball socket 24 are all in a ready-to-connect state. Then, the rotating shaft 313 of the docking part 312 is inserted into the positioning hole 27 of the positioning post 26, and the positioning pin passes through the connecting hole 314 and the mounting hole 25 to complete the horizontal fixation. Then, the control lift platform 23 is started, driving the wall panel transfer frame 32 to descend to the position corresponding to the wall panel mounting frame 12, and the transfer of the wall panel begins: First, the fixing part 321 and the rotating part 322 are aligned and the pin in the flip fixing hole 326 is pulled out. The telescopic rod 328 on the fixing part 321 extends, pushing the rotating plate 323 to rotate around the rotating shaft 313, causing the rotating part 322 to flip downward. When the rotating part 322 flips to a suitable angle, a pin is inserted into another fixing hole below to fix it, so that the rotation... When part 322 maintains a stable posture, the clamping member 33 and locking hole 327 at the bottom of the rotating part 322 align with the wall panel. Then, the drive rod 336 of the clamping member 33 rotates under force, causing the drive plate 335 and adjusting rod 337 to move in tandem, making the clamping rod 338 slide along the adjusting hole 339 to adjust the clamping space and firmly clamp the wall panel. Simultaneously, the locking hole 327 at the bottom of the rotating part 322's clamping plate engages with the positioning structure at the corresponding position on the wall panel, inserting a fixing pin to achieve double fixation and ensure the wall panel is securely clamped. The panel remains stable and without displacement during the transfer process. After confirming that the panel is firmly clamped and locked, the super panel on the panel mounting frame 12 is transferred to the panel transfer frame 32. After all the transfers are completed, the lifting platform 23 is controlled to move the outer protective fixture 3 upward. The docking part 312 of the transfer fixing frame 31 is separated from the conversion component 2. Finally, the outer protective fixture 3, together with the panel, is transferred to the aircraft fuselage assembly area by the hoisting equipment for subsequent assembly work, thus completing the entire internal and external conversion process of the aircraft super panel.

[0059] In some embodiments, see Figure 16Each fixed column 22 has a hydraulic guide rod 6 on its inner side. A hemispherical guide head is installed at the upper end of the hydraulic guide rod 6, and a distance sensor 7 is provided on the outer wall of the hydraulic guide rod 6. A magnetorheological damper 8 is integrated inside the hydraulic guide rod 6. A first pressure sensor 9 is integrated inside the hemispherical guide head. A guide groove 10 is provided on the bottom end face of the docking part 312. The distance sensor 7, hydraulic guide rod 6, first pressure sensor 9, and magnetorheological damper 8 are all electrically connected to the controller. The distance sensor 7 is used to detect the distance between the outer protective fixture 3 and the conversion component 2 and upload it to the controller. When the controller detects that the hoisting equipment has hoisted the outer protective fixture 3 to the conversion component 2, the controller will detect the distance between the outer protective fixture 3 and the conversion component 2. When the component 2 is 200mm above the hydraulic guide rod 6, a telescopic signal is sent to the hydraulic guide rod 6. Then the hydraulic guide rod 6 extends automatically. At this time, the hemispherical guide head and the guide groove 10 form a spherical-groove sliding fit, guiding the outer protective tooling 3 to translate along the X / Y direction to a precision range of ±5mm. At the same time, when the guide head contacts the guide groove 10, the first pressure sensor 9 detects the pressure change and uploads it to the controller. After comparing and processing the pressure signal, the controller sends a signal to increase the damping to the magnetorheological damper 8. The magnetorheological damper 8 increases the damping force from 50N to 500N, suppressing the hoisting sway and ensuring the stability of the dynamic process.

[0060] In some embodiments, see Figures 12-16 A pre-positioning component 4 is provided between the conversion component 2 and the transfer fixing frame 31, and a detection and leveling component 5 is provided on the transfer fixing frame 31 to detect whether the outer protective fixture 3 is tilted, and to control the leveling of the rotating fixing frame when it is tilted, while controlling the pre-positioning component 4 to stop positioning until the outer protective fixture 3 is in a horizontal state; wherein, the specific structure of the pre-positioning component 4 is as follows:

[0061] Multiple pneumatic positioning pins 41 (positioning pins whose extension and retraction are controlled by air pressure) are evenly distributed on the top of the mounting part and around the ball socket 24. The frame docking part 312 is provided with multiple pre-positioning holes 42 that correspond one-to-one with each pneumatic positioning pin 41. The pneumatic positioning pin 41 integrates a second pressure sensor 43. When the controller calculates the distance value signal sent by the distance sensor 7 and the outer protective tooling 3 descends to the contact distance with the conversion component 2 and reaches the threshold, such as 3mm, it sends an extension command to the pneumatic positioning pin 41 and a retraction command to the hydraulic guide rod 6 to separate it from the guide groove 10. After receiving the command, the pneumatic positioning pin 41 extends and inserts into the corresponding pre-positioning hole 42 to achieve pre-positioning. In addition, the second pressure sensor 43 monitors the insertion force of the pneumatic positioning pin 41 in real time and uploads it to the controller. When the controller confirms that the insertion force exceeds 200N, it triggers an alarm and sends a command to the hoisting equipment to terminate the hoisting to prevent overload damage.

[0062] The specific structure of the leveling component 5 is as follows:

[0063] The bottom of the docking section 312 is provided with multiple leveling legs 51 (telescopic support rods controlled by hydraulic cylinders). Each leveling leg 51 is equipped with an angle sensor 52 and a spherical pad 53 at its bottom. The extension and retraction of each leveling leg 51 are controlled by a hydraulic cylinder. The bottom of the spherical pad 53 contacts the leveling reference surface 54 at the top of the fixed column 22. The center of gravity of the frame mounting section 311 is connected to a gravity pendulum 55 through a hinge rod 56. The top of the hinge rod 56 is provided with a permanent magnet 57, and the top of the frame mounting section 311 is provided with an electromagnetic magnet corresponding to the permanent magnet 57. A first connecting rod 59 is hinged to a base 58 and a gravity pendulum 55. The end of the first connecting rod 59 is hinged to a second connecting rod 60. The end of the second connecting rod 60 is hinged to a trigger block 61. The trigger block 61 is slidably connected to the bottom end face of the frame mounting part 311 (through a slide rail or slide groove). A leveling trigger switch 63 is provided on the moving path of the trigger block 61. The leveling trigger switch 63 forms a trigger part. The first connecting rod 59, the second connecting rod 60 and the trigger block 61 form a connecting rod structure. The leveling trigger switch 63, the hydraulic cylinder and the electromagnetic suction base 58 are all electrically connected to the controller. When the controller confirms that the pneumatic positioning pin 41 has made initial contact with the positioning hole 27 based on the pressure change signal uploaded by the second pressure sensor 43, it sends an extension signal to the leveling leg 51. Upon receiving the signal, the leveling leg 51 begins to extend, causing the spherical pad 53 to contact the leveling reference surface 54 at the top of the fixed column 22. After sending the extension signal, the controller starts timing and determines whether it has received the switching signal of the leveling trigger switch 63 within the threshold time. That is, after the spherical pad 53 contacts the leveling reference surface 54, since the gravity pendulum 55 is suspended at the center of gravity, when the tooling tilts by more than 1°, the leveling trigger switch 63 can be triggered by the four-bar linkage consisting of the first link 59, the second link 60, and the trigger block 61. At this time, the leveling trigger switch 63 sends a trigger signal to the controller, which then sends a signal to the pneumatic positioning pin 41 and the hoisting equipment. Upon receiving a stop positioning signal, the pneumatic positioning pin 41 and the hoisting equipment stop extending or stop moving the outer protective fixture 3 downward. Simultaneously, they send an extension leveling signal to the leveling outrigger 51 and, based on the tilt angle data sent by the tilt angle sensor 52, determine which leveling outrigger 51 to send the extension command by how much. After issuing the command, a timer begins. If no further signals are received from the leveling trigger switch 63 and the tilt angle sensor 52 within a threshold time, a working command is sent back to the pneumatic positioning pin 41 and the hoisting equipment. The above steps are repeated until the pressure change signal uploaded by the second pressure sensor 43 confirms that the pneumatic positioning pin 41 is fully inserted into the positioning hole 27 and has achieved positioning. Then, a stop working command is sent to each component, and an energizing command is sent to the electromagnetic suction base 58. After the electromagnetic suction base 58 is energized, it attracts and fixes the permanent magnet, eliminating swing interference.

[0064] The working principle of the aircraft super panel internal and external conversion method and device in this application is as follows: The operator installs the aircraft super panel on the panel mounting frame 12 of the inner protective fixture 1. After the installation is completed, the panel mounting frame 12 slides along the two parallel tracks 11 of the inner protective fixture 1 towards the transfer area, and stops sliding after moving to the predetermined transfer point. Then, the outer protective fixture 3 is moved to the transfer area by the hoisting equipment, and the pre-positioning and detection leveling begin: the distance sensor 7 detects the distance between the outer protective fixture 3 and the conversion component 2 in real time and uploads it to the controller. When the controller determines that the distance is less than or equal to 200mm, it sends a telescopic signal to the hydraulic guide rod 6, and then the hydraulic guide rod 6 automatically extends. At this time, the hemispherical guide head and the guide... The groove 10 forms a spherical-groove sliding fit, guiding the outer protective fixture 3 to translate along the X / Y direction to a precision range of ±5mm. When the controller calculates, based on the distance value signal sent by the distance sensor 7, that the outer protective fixture 3 has descended to a contact distance with the conversion component 2 that reaches a threshold, such as 3mm, it sends an extension command to the pneumatic positioning pin 41. After receiving the command, the pneumatic positioning pin 41 extends and inserts into the corresponding pre-positioning hole 42. At this time, the second pressure sensor 43 monitors the pressure between the two in real time and uploads the data to the controller. When the controller confirms, based on the uploaded pressure change signal, that the pneumatic positioning pin 41 has made initial contact with the positioning hole 27, it sends an extension signal to the leveling leg 51. After receiving the signal, the leveling leg 51 begins to extend. This causes the spherical pad 53 to contact the leveling reference surface 54 at the top of the fixed column 22. After sending the extension signal, the controller starts timing and determines whether it has received the switching signal of the leveling trigger switch 63 within the threshold time. That is, after the spherical pad 53 contacts the leveling reference surface 54, since the gravity pendulum 55 is suspended at the center of gravity, when the tooling tilts by more than 1°, the leveling trigger switch 63 can be triggered by the four-bar linkage consisting of the first link 59, the second link 60, and the trigger block 61. At this time, the leveling trigger switch 63 sends a trigger signal to the controller, and the controller sends a stop positioning signal to the pneumatic positioning pin 41 and the hoisting equipment. After receiving the signal, the pneumatic positioning pin 41 and the hoisting equipment stop extending or stop. The external protective fixture 3 is moved downwards. At the same time, an extension leveling signal is sent to the leveling outrigger 51. Based on the tilt angle data sent by the tilt angle sensor 52, it is determined which leveling outrigger 51 to send the instruction on how far to extend. After the instruction is sent, the timing starts. After no more signals are received from the leveling trigger switch 63 and the tilt angle sensor 52 within the threshold time, the working instruction is sent again to the pneumatic positioning pin 41 and the hoisting equipment. Then the above steps are repeated until the pressure change signal uploaded by the second pressure sensor 43 confirms that the pneumatic positioning pin 41 is fully inserted into the positioning hole 27 to achieve positioning. Then, the instruction to stop working is sent to each component, and the instruction to power on is sent to the electromagnetic suction base 58. After the electromagnetic suction base 58 is powered on, it attracts and fixes the permanent magnet.At this time, the docking part 312 of the transfer fixing frame 31 corresponds one-to-one with the fixing column 22 of the conversion assembly 2. Then, the rotating shaft 313 of the docking part 312 is inserted into the positioning hole 27 of the positioning column 26, and the positioning pin passes through the connecting hole 314 and the mounting hole 25. Next, the control lifting platform 23 is started, and the drive motor 232 drives the lead screw 233 to rotate through the transmission assembly. The transmission rod assembly uses two meshing gears, one sleeved on the output shaft of the drive motor 232 and the other sleeved on the top of the lead screw 233. Since the lead screw 233 is screwed to the sliding block 235, Guided by the lifting slide rail 234, the sliding block 235 drives the ball socket 24 and the outer protective fixture 3 to move downward a predetermined distance. During the descent, the limit switch 236 on the inner wall of the lifting seat 231 cooperates with the detection surface 238 on the detection rod 237 of the sliding block 235 to monitor the position of the sliding block 235 in real time. When the predetermined position is reached, the limit switch 236 triggers a signal, the drive motor 232 stops rotating, and then the wall panel transfer steps begin: First, the fixing part 321 and the rotating part 322 are aligned and the pin in the flipping fixing hole 326 is pulled out. The telescopic rod 328 on 321 extends, pushing the rotating plate 323 to rotate around the rotating shaft 313, causing the rotating part 322 to flip downwards. When the rotating part 322 flips to a suitable angle, a pin is inserted into another fixing hole below to fix it, keeping the rotating part 322 in a stable position. At this time, the clamping member 33 and the locking hole 327 at the bottom of the rotating part 322 are aligned with the wall panel. Then, the drive rod 336 of the clamping member 33 is rotated under force, driving the drive plate 335 and the adjusting rod 337 to move together, causing the clamping rod 338 to slide along the adjusting hole 339, firmly clamping the wall panel; at the same time, the rotating part 322 rotates downwards. The locking hole 327 at the bottom of the moving part 322 plate engages with the positioning structure at the corresponding position of the wall panel, and a fixing pin is inserted. After confirming that the wall panel is securely clamped and locked, the super wall panel on the wall panel mounting frame 12 is transferred to the wall panel transfer frame 32. After all transfers are completed, the lifting platform 23 is controlled to move the outer protective fixture 3 upward, and the docking part 312 of the transfer fixing frame 31 separates from the conversion assembly 2. Finally, the outer protective fixture 3, together with the wall panel, is transferred to the aircraft fuselage assembly area by hoisting equipment for subsequent assembly work, completing the entire internal and external conversion process of the aircraft super wall panel.

[0065] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An aircraft super panel internal and external conversion device, characterized in that: The system includes an inner protective fixture (1), a conversion assembly (2), and an outer protective fixture (3). The inner protective fixture (1) includes two parallel tracks (11) and multiple wall panel mounting brackets (12) located in the installation area of ​​the tracks (11). The conversion assembly (2) is located in the transfer area of ​​the tracks (11) and outside the two tracks (11). The outer protective fixture (3) includes a transfer fixing bracket (31) corresponding to the top of the conversion assembly (2) and multiple wall panel transfer brackets (32) located below the transfer fixing bracket (31). The conversion assembly (2) includes two symmetrically arranged conversion brackets. Each conversion bracket includes a work platform (21) and fixed columns (22) respectively located on both sides of the work platform (21), and a control lifting platform (23) located on the top of the fixed columns (22). The ball socket (24) is slidably connected to the control lifting platform (23) on the side near the track (11). The ball socket (24) has multiple mounting holes (25) along its circumference, and a positioning post (26) is provided in the inner circle of the ball socket (24). The top of the positioning post (26) is provided with a hemispherical positioning hole (27). The transfer fixing frame (31) includes a frame mounting part (311) and docking parts (312) respectively provided on both sides of the frame mounting part (311). Each wall panel transfer frame (32) is connected to the frame mounting part (311) at intervals. Each docking part (312) corresponds to each fixing post. The bottom of the docking part (312) is provided with a rotating shaft (313) corresponding to the positioning hole (27) and a connecting hole (314) corresponding to the mounting hole (25).

2. The aircraft super panel inward / outward conversion device according to claim 1, characterized in that: The inner protective fixture (1) also includes two inner protective frames (13) connected to both sides of the track (11) and a limiting rod (14) located on the side of the inner protective frame (13) near the transfer area. The two limiting rods (14) are arranged opposite to each other, and each wall panel mounting frame (12) is spaced apart and fixed to the inner protective frame (13).

3. The aircraft super panel inward / outward conversion device according to claim 2, characterized in that: The control lifting platform (23) includes a lifting seat (231), a drive motor (232) located on the top of the lifting seat (231), a lead screw (233) connected to the output shaft of the drive motor (232) via a transmission assembly, lifting slide rails (234) located on both sides of the lifting seat (231), and a sliding block (235) slidably connected to the lifting slide rails (234) and screwed to the lead screw (233). One side of the sliding block (235) protrudes to form a mounting part, and a ball socket (24) is provided on the mounting part.

4. The aircraft super panel inward / outward conversion device according to claim 3, characterized in that: At least two limit switches (236) are provided at intervals along the height direction on the inner wall of the lifting seat (231). A detection rod (237) is provided on the side of the sliding block (235) near the inner wall of the lifting seat (231). The detection rod (237) is provided with a detection surface (238) that contacts the limit switch (236).

5. The aircraft super panel inward / outward conversion device according to claim 4, characterized in that: The shape of the wall panel transfer frame (32) is consistent with the shape of the wall panel mounting frame (12), and clamping members (33) are provided at the bottom of both sides of the wall panel transfer frame (32). The clamping members (33) are used to clamp the super wall panel on the corresponding wall panel mounting frame (12). The clamping member (33) includes an adjusting plate (331) at the bottom of the wall panel transfer frame (32), a sliding groove (332) at the bottom of the adjusting plate (331), an L-shaped mounting plate (333) slidably connected in the sliding groove (332), two connecting plates (334) fixed to the mounting plate (333), and a mechanism for rotating with the two connecting plates (334). The device includes a drive plate (335) for dynamic connection, a drive rod (336) connected to the ends of the two connecting plates (334), an adjusting rod (337) disposed between the two connecting plates (334) and rotatably connected to the drive plate (335) and the connecting plate (334) respectively, and a clamping rod (338) connected to the adjusting rod (337). The clamping rod (338) forms a clamping space with the vertical plate of the mounting plate (333). The top of the adjusting rod (337) has an adjusting hole (339) along its height direction. The clamping rod (338) is slidably connected in the adjusting hole (339) and fixed by a nut (340).

6. The aircraft super panel inward / outward conversion device according to claim 5, characterized in that: The wall panel transfer frame (32) includes a fixed part (321) and two rotating parts (322) rotatably connected to the bottom of the fixed part (321). Two clamping members (33) are respectively disposed at the bottom of the two rotating parts (322). Rotating plates (323) are respectively provided on two opposite sides of the bottom of the fixed part (321). The upper ends of the two rotating plates (323) are connected on one side by a rotating shaft (324) and on the other side by a pin (325). The lower ends are fixed to the top of the rotating parts (322). The fixed part (321) and the rotating parts (322) are... The rotating part (322) is provided with flip-fixing holes (326). The two flip-fixing holes (326) are aligned and fixed when the rotating part (322) is flipped. The bottom of the card plate of the rotating part (322) is provided with locking holes (327) that are corresponding to the wall plate. The fixed part (321) is rotatably connected to the telescopic rod (328) through the mounting base (329). The mounting base (329) is correspondingly provided to the rotating plate (323). The bottom of the telescopic rod (328) is rotatably connected to the rotating plate (323) near the bottom.

7. The aircraft super panel inward / outward conversion device according to claim 6, characterized in that: A pre-positioning component (4) is provided between the conversion component (2) and the transfer fixing frame (31), and a detection and leveling component (5) is provided on the transfer fixing frame (31) to detect whether the outer protective fixture (3) is tilted, and to control the leveling of the transfer fixing frame (31) when it is tilted, and at the same time control the pre-positioning component (4) to stop positioning until the outer protective fixture (3) is in a horizontal state; the pre-positioning component (4) includes a plurality of pneumatic positioning pins (41) provided on the top of the mounting part and evenly distributed along the circumference of the ball socket (24) and provided on the docking part (31). 2) Multiple pre-positioning holes (42) corresponding one-to-one with each pneumatic positioning pin (41), the pneumatic positioning pin (41) integrates a second pressure sensor (43); the detection and leveling assembly (5) includes leveling legs (51) located around the bottom of the docking part (312), a gravity pendulum (55) located at the center of gravity of the frame mounting part (311), and a trigger part connected to the gravity pendulum (55) through a linkage structure. The pneumatic positioning pin (41), the trigger part, and the second pressure sensor (43) are all electrically connected to the controller.

8. A method for converting the interior and exterior of an aircraft super panel, characterized in that: The internal and external conversion device for the aircraft super panel as described in any one of claims 1-7 is used for internal and external conversion, and the method includes the following steps: S1: Install the super wall panels onto the respective wall panel mounting brackets, and then slide them to the transfer area via the tracks; S2: Move the outer protective fixture to the transfer area and fix it to the top of the conversion component through the transfer fixing frame. Use the conversion component to drive the outer protective fixture to move down a predetermined distance so that the wall panel transfer frame and the wall panel mounting frame correspond one-to-one. S3: Use the wall panel transfer rack to hold the wall panels on the wall panel mounting rack and transfer the super wall panel to the wall panel transfer rack; S4: The conversion component moves the outer protective tooling upwards, and after the transfer fixing frame separates from the top of the conversion component, the outer protective tooling is transferred to the aircraft fuselage assembly area.

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