Lower frame turnover device for vertically assembling wing box and use method of lower frame turnover device

Abstract

The invention discloses a lower frame turnover device for vertically assembling a wing box and a using method, the two ends of an upper enclosure frame and a lower enclosure frame of the device are connected through an enclosure frame upper connecting pin and an enclosure frame lower connecting pin, and a front pressing clamping plate and a rear pressing clamping plate are installed on the front portion and the rear portion of the inner side of the lower enclosure frame; front and rear positioning joints are arranged in front and back of the inner side of the upper enclosure frame; an integral enclosure frame formed by the upper enclosure frame and the lower enclosure frame is arranged on the wing box section in a sleeving manner, the upper enclosure frame and the upper surface of the wing box section are positioned and mounted through the front positioning joint and the rear positioning joint, and the wing box is subjected to shape-preserving compression through the front compression clamping plate and the rear compression clamping plate; the upper overturning head is movably arranged on the enclosure frame head at the front end of the upper enclosure frame in a sleeving mode. A lead screw driving mechanism is arranged on the inner side of the overturning frame, a lead screw penetrates through the overturning frame at a preset inclination angle, and one end of the lead screw is fixedly connected with the outer side of the upper enclosure frame. The lead screw driving machine drives the lead screw to move so as to push the upper enclosure frame and the overturning frame to relatively rotate around the hinge shaft as the rotation center, and therefore the wing box section is driven by the overall enclosure frame to overall overturn.

Description

Technical Field

[0001] The present invention relates to the field of aircraft assembly technology, but is not limited thereto, and in particular to a wing box off-frame flipping device for vertical assembly and a use method thereof. Background Art

[0002] In the aircraft assembly and manufacturing process, the assembly quality of wing components is crucial. The main structure of the wing is the wing box, which is mainly assembled from leading and trailing edges, wing ribs, wing wall panels, etc. The wing box is the main load-bearing component of the entire aircraft and also the aircraft's fuel tank. Its assembly quality determines the aircraft's sealing and the aerodynamic shape of the entire aircraft.

[0003] During the assembly of the aircraft wing box, in order to facilitate the construction of the wing box assembly, most of the wing boxes are assembled vertically; after the wing box assembly is completed, the wing box needs to be removed from the frame and flipped to a horizontal position to complete the subsequent wing docking, wing-body docking and other work. The existing vertical wing box unloading and flipping method usually uses a steel cable combined with a conformal tooling. After the wing box is lifted out of the assembly jig, it is slowly lowered by the factory crane to achieve the horizontal flipping of the wing box. This tooling combination method has a complex structure and a cumbersome installation process. In addition, during the flipping process, the wing box will be unevenly stressed when flipping horizontally, and the descending speed is difficult to accurately control, which can easily cause bumps and falls during the wing box unloading process.

[0004] Therefore, a wing box dismounting and flipping device with high integration and stable and reliable structure is needed. Summary of the invention

[0005] Purpose of the present invention: In order to solve the above-mentioned technical problems, the embodiments of the present invention provide a device and a method for using the wing box of a vertically assembled wing, so as to solve the problems that during the unloading and flipping process of the existing vertical wing box, the wing box is subjected to uneven force when flipped horizontally, the descending speed is difficult to accurately control, and it is very easy to cause bumps and falls during the unloading process of the wing box.

[0006] Technical solution of the present invention: In the first aspect, the embodiment of the present invention provides a down-frame flipping device for vertically assembling a wing box, comprising: a main lifting ring 1, an upper surrounding frame 10, a lower surrounding frame 3, a flipping frame 17, an upper flipping head 18, a front clamping plate 4, a rear clamping plate 6, a rear beam clamping plate 7, a front positioning joint 13, and a rear positioning joint 9;

[0007] Among them, one end of the upper enclosure 10 is connected to the lower enclosure 3 through the enclosure upper connecting pin 2, and the other end is connected through the enclosure lower connecting pin 8, and a front pressing card plate 4 and a rear pressing card plate 6 are installed at the front and rear positions of the inner side of the lower enclosure 3; a front positioning joint 13 and a rear positioning joint 9 are installed at the front and rear positions of the inner side of the upper enclosure 10; the integral enclosure sleeve formed by the upper enclosure 10 and the lower enclosure 3 is installed on the wing box segment, and the upper enclosure 10 and the upper surface of the wing box segment are positioned and installed through the front positioning joint 13 and the rear positioning joint 9, and the wing box is conformally pressed through the front pressing card plate 4 and the rear pressing card plate 6;

[0008] The upper flip head 18 is configured as a hollow structure, which is movably mounted on the frame head at the front end of the upper frame 10, and the front end of the upper flip head 18 is installed with a main lifting ring 1; the rear end of the flip frame 17 is hinged to the connecting ear structure extending from the outer side of the upper frame 10, and the front end of the flip frame 17 is fixedly connected to the upper end surface of the upper flip head 18;

[0009] A screw drive mechanism is provided on the inner side of the flip frame 17, wherein the screw passes through the flip frame 17 at a preset inclination angle, and one end of the screw is fixedly connected to the outer side of the upper frame 10; the screw is driven to move by the screw driver in the flip frame 17 to push the upper frame 10 and the flip frame 17 to rotate relative to each other around the hinge axis as the rotation center, thereby driving the wing box section to flip as a whole through the overall frame.

[0010] Optionally, in a lower frame flipping device for vertically assembling a wing box as described above, the outer shapes of the front positioning joint 13 and the rear positioning joint 9 installed on the upper frame 10 are consistent with the outer shapes of the wing upper wall panel 19, and process positioning holes are pre-opened on the front positioning joint 13 and the rear positioning joint 9. The front positioning joint 13 and the rear positioning joint 9 are fixedly connected to the wing upper wall panel 19 and the front beam 20 and the rear beam 21 by process bolts, thereby completing the positioning and installation of the upper frame 10 on the wing box.

[0011] Optionally, in the above-mentioned lower frame flipping device for vertically assembling a wing box, the outer shapes of the front pressing card plate 4 and the rear pressing card plate 6 installed on the lower enclosure 3 are consistent with the outer shapes of the wing lower wall plate 22, and the front pressing card plate 4 and the rear pressing card plate 6 and the lower enclosure 3 are provided with adjustment hand wheels, and the front pressing card plate 4 and the rear pressing card plate 6 are respectively pressed against the wing lower wall plate 22 by adjusting the hand wheels;

[0012] The lower frame 3 and the front clamping plate 4 and the rear clamping plate 6 arranged on the inner side thereof cooperate with the upper frame 10 and the front positioning joint 13 and the rear positioning joint 9 arranged on the inner side thereof to wrap and fix the wing box and press it to maintain its shape.

[0013] Optionally, the above-mentioned unloading and turning device for vertically assembling a wing box further comprises: a rear beam pressing support plate 7;

[0014] The upper enclosure frame 10 includes a front enclosure frame head and an upper frame beam fixedly connected to the rear end of the enclosure frame head; the lower enclosure frame 3 is configured as an L-shaped structure, including a lower frame beam and a cross beam connected to the rear end of the lower frame beam; the front end of the lower frame beam is fixedly connected to the bottom end of the enclosure frame head, and the other end of the cross beam is connected to the end of the upper frame beam;

[0015] Among them, a rear beam clamping pallet 7 is installed on the inner side of the cross beam of the lower frame 3, and the rear beam clamping pallet and the cross beam are provided with an adjusting hand wheel, by adjusting the hand wheel, the rear beam clamping pallet 7 and the rear beam of the wing box are fitted and pressed together with the upper frame 10 and the lower frame 3 to wrap and fix the wing box.

[0016] Optionally, in the above-mentioned unloading and flipping device for vertically assembling a wing box, it is characterized by further comprising: a lower frame lifting ring 5, a flip connecting plate 11 and a flip pin 12;

[0017] The upper frame beam in the upper enclosure frame 10 is symmetrically provided with flip connection plates 11 protruding from the outer end surface thereof to form a connection ear structure on the outer side of the upper enclosure frame 10, and the bottom end of the flip frame 17 is connected to the flip connection plate 11 through a flip pin 12;

[0018] A lower frame lifting ring 5 is installed at the middle part of the outer side of the lower frame 3, and the main lifting ring 1 installed at the front end of the upper flip head 18 and the lower frame lifting ring 5 installed on the outer side of the lower frame 3 are used for hanging in coordination with the hook of the crane.

[0019] Optionally, in the above-mentioned off-frame flipping device for vertically assembled wing boxes, the screw drive mechanism disposed inside the flip frame 17 comprises: a drive motor 14, a transmission mechanism 16 and a flip screw 15;

[0020] Among them, the driving motor 14 and the transmission mechanism 16 are fixedly installed inside the flip frame 17, and the output shaft of the driving motor 14 is connected to the transmission shaft of the transmission mechanism 16, the flip screw 15 passes through the transmission mechanism 16 and the flip frame 17 at a preset angle, one end of which is fixedly connected to the outside of the upper frame 10, and the flip screw 15 and the transmission mechanism 16 are engaged by rolling gear.

[0021] Optionally, in the above-mentioned unloading and turning device for vertically assembling a wing box,

[0022] The screw drive mechanism arranged in the flip frame 17 is used to start the drive motor 14 when the wing box is lifted off the assembly jig and reaches the placement area. The drive motor 14 drives the flip screw 15 through the transmission mechanism 16, so that the flip frame 17 rotates around the flip pin 12 with the upper flip head 18 to slowly move away from the upper frame 10, and simultaneously pushes the entire frame to rotate in the opposite direction until the entire frame clamps the entire wing box and flips it to a horizontal state.

[0023] In a second aspect, an embodiment of the present invention further provides a method for using a wing box dismounting device for vertical assembly, which is a method for using a wing box dismounting device for vertical assembly as described in any one of the above items, comprising:

[0024] At least two lower frame flipping devices for vertically assembling wing boxes as described in claims 1 to 7 are positioned and connected to the preset positions of the wing boxes, and after the main lifting rings 2 of the two lower frame flipping devices are hung by the hook of a crane, the two lower frame flipping devices are used to synchronously flip the entire wing box.

[0025] Optionally, the method for using the above-mentioned off-frame flipping device for vertically assembling a wing box specifically includes:

[0026] Step 1, connect the hook of the crane to the main lifting ring 1 on the top of the lower frame turning device, and lift the entire structure of the upper turning head 18, the turning frame 17, and the upper surrounding frame 10 to the assembly area of ​​the wing box;

[0027] Step 2, using process bolts to connect the front positioning joint 13 on the upper enclosure frame 10 with the wing upper wall panel 19 and the front beam 20, and using process bolts to connect the rear positioning joint 9 on the upper enclosure frame 10 with the wing upper wall panel 19 and the rear beam 21, so that the upper enclosure frame 10 is fixed on the wing upper wall panel 19;

[0028] Step 3, connecting the hook of the crane to the lower frame lifting ring 5 on the lower frame 3, and lifting the lower frame 3 as a whole to above the lower wing surface of the wing box in the wing box assembly area;

[0029] Step 4, the upper enclosure 10 is fixedly connected to the same side end of the lower enclosure 3 by the enclosure upper connecting pin 2 and the enclosure lower connecting pin 8;

[0030] Step 5, rotating the adjustment handwheels at the rear ends of the front pressing plate 4 and the rear pressing plate 6 of the lower enclosure 3 to ensure that the pressing plate 4 and the rear pressing plate 6 are pressed against the lower wing wall panel 22;

[0031] Step 6, rotating the adjustment hand wheel at the rear end of the rear beam pressing support plate 7 installed on the inner side of the cross beam in the lower frame 3, to ensure that the rear beam pressing support plate 7 is pressed tightly against the rear beam 21 of the wing box;

[0032] Step 7, repeat the above steps 1 to 6 to install another lower frame flipping device at another position of the wing box;

[0033] Step 8, open the wing box assembly jig, hang the crane hook on the main lifting rings 1 of the two lower frame flipping devices respectively, lift them synchronously, and lift the wing box away from the wing box assembly area;

[0034] Step 9, when the wing box is lifted off the assembly area and reaches the placement area, start the drive motor 14, which drives the flip screw 15 through the transmission mechanism 16, so that the flip frame 17 rotates around the flip pin 12 with the upper flip head 18 to slowly move away from the upper frame 10, and simultaneously pushes the overall frame to rotate in the opposite direction until the overall frame clamps the entire wing box to flip it to a horizontal state and place it on a horizontal bracket.

[0035] Step 10, rotating the adjusting hand wheel, separating the front pressing plate 4, the rear pressing plate 6 and the rear beam pressing plate 7 from the wing lower wall plate 22 and the rear beam 21 respectively;

[0036] Step 11, unplug the upper connecting pin 2 and the lower connecting pin 8 of the enclosure frame, separate the upper enclosure frame 10 from the lower enclosure frame 3, and then pull out the lower enclosure frame 3;

[0037] Step 12, remove the connection bolts between the front positioning joint 13 and the rear positioning joint 9 of the upper enclosure frame 10 and the wing upper wall plate 19, the front beam 20, and the rear beam 21, and then lift the upper enclosure frame 10 away.

[0038] Beneficial effects of the present invention: The embodiment of the present invention provides a lower frame flipping device and a method of use for vertical assembly of a wing box. In the lower frame flipping device, the wing box is positioned, installed and conformally pressed by the integral frame of the upper frame 10 and the lower frame 3; and the flipping mechanism formed by the flip frame 17 and the upper flip head 18 and the hinged form and drive form of the integral frame are used to make the two parts of the structure rotate in opposite directions along the hinge axis to achieve the overall flipping of the wing box. The lower frame flipping device provided by the embodiment of the present invention realizes rapid lowering and stable and reliable flipping. The use of the integrated lower frame flipping device simplifies the tooling installation and disassembly process and improves assembly efficiency. In addition, the upper and lower frame envelope design adopted can achieve overall reliable wrapping of the entire wing box, ensuring the stability of the entire wing box during the process of being taken down from the shelf. A flip frame, a drive motor, a transmission mechanism and a flip screw for flip drive are integrated on the upper frame. The drive motor drives the flip screw to slowly separate the entire flip frame from the overall frame, ensuring the stability and reliability of the wing box during flipping, fundamentally avoiding the risks of shaking, bumping and falling during the flipping of the wing box, and greatly improving the efficiency of taking the wing box off the shelf and the stability and reliability during the flipping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0040] Figure 1 A schematic diagram of the overall structure of a lower frame flipping device for vertically assembling a wing box provided by an embodiment of the present invention;

[0041] Figure 2 for Figure 1 A schematic diagram of the installation structure of the unloading and flipping device provided in the illustrated embodiment during the unloading process of the wing box;

[0042] Figure 3 for Figure 2 A partial view of the lower shelf flipping device of the illustrated embodiment during use; Figure 3 Figures a and b are schematic diagrams from different perspectives.

[0043] Description of reference numerals:

[0044] 1-main lifting ring, 2-upper connecting pin of enclosure frame, 3-lower enclosure frame, 4-front clamping plate, 5-lower enclosure frame lifting ring, 6-rear clamping plate, 7-rear beam clamping support plate, 8-lower connecting pin of enclosure frame, 9-rear positioning joint, 10-upper enclosure frame, 11-flip connecting plate, 12-flip pin, 13-front positioning joint, 14-drive motor, 15-flip screw, 16-transmission mechanism, 17-flip frame, 18-upper flip head, 19-wing upper wall panel, 20-front beam, 21-rear beam, 22-wing lower wall panel. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0046] As described in the above background technology, after the wing box is assembled, it is necessary to remove the wing box from the rack and flip it to a horizontal position. The existing vertical wing box removal and flipping method usually uses a steel cable combined with a conformal tooling. During the flipping process, the wing box will be unevenly stressed when flipping horizontally, and the descending speed is difficult to accurately control, which can easily lead to problems such as bumps and falls during the removal process of the wing box.

[0047] In view of the above problems, a demand is put forward for a wing box dismounting and flipping device with high integration and stable and reliable structural form. The present invention provides a dismounting and flipping device for vertically assembling a wing box and a method of use.

[0048] The present invention provides the following specific embodiments which can be combined with each other. The same or similar concepts or processes may not be described in detail in some embodiments.

[0049] Figure 1 The overall structure diagram of a wing box lowering and flipping device for vertical assembly provided by an embodiment of the present invention is shown in FIG. Figure 2 for Figure 1 The schematic diagram of the installation structure of the unloading and flipping device provided in the embodiment shown in the figure is in the process of unloading the wing box. Figure 3 for Figure 2 A partial view of the lower shelf flipping device of the illustrated embodiment during use; Figure 3 Figures a and b are schematic diagrams from different perspectives.

[0050] The embodiment of the present invention provides a wing box unloading and flipping device for vertical assembly of a wing box, see the attached Figure 1-3 The lower frame flipping device provided in the embodiment of the present invention includes: a main lifting ring 1, an upper frame 10, a lower frame 3, a flipping frame 17, an upper flipping head 18, a front clamping plate 4, a rear clamping plate 6, a rear beam clamping support plate 7, a front positioning joint 13, and a rear positioning joint 9.

[0051] like Figures 1 to 3 As shown, in the embodiment of the present invention, an upper enclosure 10 and a lower enclosure 3 are used to form an integral enclosure structure. The specific integral enclosure structure is: one end of the upper enclosure 10 and the lower enclosure 3 are connected by an upper enclosure connecting pin 2, and the other end is connected by a lower enclosure connecting pin 8, and a front clamping card 4 and a rear clamping card 6 are installed at the front and rear positions on the inner side of the lower enclosure 3; a front positioning joint 13 and a rear positioning joint 9 are installed at the front and rear positions on the inner side of the upper enclosure 10.

[0052] The above-mentioned integral frame structure formed by the embodiment of the present invention can be installed on the wing box section through the integral frame sleeve formed by the upper frame 10 and the lower frame 3, and the upper frame 10 and the upper surface of the wing box section can be positioned and installed through the front positioning joint 13 and the rear positioning joint 9, and the wing box can be conformally pressed through the front clamping plate 4 and the rear clamping plate 6.

[0053] like Figures 1 to 3 As shown, in the embodiment of the present invention, a turning frame 17 and an upper turning head 18 are used to form the main structure of the turning mechanism. The upper turning head 18 is set as a hollow structure, which is movably mounted on the frame head at the front end of the upper frame 10, and the front end of the upper turning head 18 is installed with a main lifting ring 1; the rear end of the turning frame 17 is hinged to the connecting ear structure extending from the outer side of the upper frame 10, and the front end of the turning frame 17 is fixedly connected to the upper side end surface of the upper turning head 18.

[0054] A screw drive mechanism is provided on the inner side of the flip frame 17 of the embodiment of the present invention, wherein the screw passes through the flip frame 17 at a preset inclination angle, and one end of the screw is fixedly connected to the outer side of the upper frame 10; the screw is driven to move by the screw driver in the flip frame 17 to push the upper frame 10 and the flip frame 17 to rotate relative to each other around the hinge axis as the rotation center, thereby driving the wing box section to flip as a whole through the overall frame.

[0055] In one implementation of the embodiment of the present invention, Figure 1 As shown, the outer shapes of the front positioning joint 13 and the rear positioning joint 9 installed on the upper frame 10 are consistent with the outer shapes of the wing upper wall panel 19, and process positioning holes are pre-opened on the front positioning joint 13 and the rear positioning joint 9. The front positioning joint 13 and the rear positioning joint 9 are fixedly connected to the wing upper wall panel 19 and the wing front beam 20 and the rear beam 21 by process bolts to complete the positioning installation of the upper frame 10 on the wing box.

[0056] In one implementation of the embodiment of the present invention, Figure 1 As shown, the outer shapes of the front clamping plate 4 and the rear clamping plate 6 installed on the lower frame 3 are consistent with the outer shape of the wing lower wall panel 22, and adjusting hand wheels are provided on the front clamping plate 4, the rear clamping plate 6 and the lower frame 3. By adjusting the hand wheels, the front clamping plate 4 and the rear clamping plate 6 are respectively pressed against the wing lower wall panel 22.

[0057] In a specific implementation, the wing box is wrapped, fixed, and compacted by using the lower frame 3 and the front clamping plate 4 and the rear clamping plate 6 arranged on its inner side in cooperation with the upper frame 10 and the front positioning joint 13 and the rear positioning joint 9 arranged on its inner side.

[0058] In one implementation of the embodiment of the present invention, Figure 1 As shown, the upper enclosure 10 includes a front end enclosure head and an upper frame beam fixedly connected to the rear end of the enclosure head; the lower enclosure 3 is configured as an L-shaped structure, including a lower frame beam and a cross beam connected to the rear end of the lower frame beam; the front end of the lower frame beam is fixedly connected to the bottom end of the enclosure head, and the other end of the cross beam is connected to the end of the upper frame beam.

[0059] Based on the overall enclosure structure in this implementation, the lower frame flipping device further includes: a rear beam pressing support plate 7. In this implementation, a rear beam pressing support plate 7 is installed on the inner side of the cross beam of the lower enclosure 3, and the rear beam pressing support plate and the cross beam are provided with an adjustment hand wheel, and the rear beam pressing support plate 7 is pressed against the rear beam of the wing box by adjusting the hand wheel, and the wing box is wrapped and fixed together with the upper enclosure 10 and the lower enclosure 3.

[0060] In one implementation of the embodiment of the present invention, Figure 1As shown, the frame flipping device may further include: a lower enclosure frame lifting ring 5, a flip connecting plate 11 and a flip pin 12. In this implementation, the flip connecting plates 11 protruding from the outer end faces of the upper frame beams in the upper enclosure frame 10 are symmetrically mounted on both sides thereof to form a connecting ear structure on the outer side of the upper enclosure frame 10, and the bottom end of the flip frame 17 is connected to the flip connecting plate 11 through the flip pin 12.

[0061] It should be noted that in the embodiment of the present invention, a lower frame lifting ring 5 is installed in the middle of the outer side of the lower frame 3, and the main lifting ring 1 installed at the front end of the upper flip head 18 and the lower frame lifting ring 5 installed on the outer side of the lower frame 3 are used to cooperate with the hook of the crane for hanging.

[0062] In one implementation of the embodiment of the present invention, Figure 1 As shown, the screw drive mechanism disposed inside the flip frame 17 includes: a drive motor 14, a transmission mechanism 16 and a flip screw 15. In this implementation, the transmission mechanism 16 of the drive motor 14 is fixedly installed inside the flip enclosure 17, and the output shaft of the drive motor 14 is connected to the transmission shaft of the transmission mechanism 16, the flip screw 15 penetrates the transmission mechanism 16 and the flip enclosure 17 at a preset angle, one end of which is fixedly connected to the outside of the upper enclosure 10, and the flip screw 15 is meshed with the rolling gear of the transmission mechanism 16.

[0063] Based on the structure of the screw drive mechanism in this implementation, when the wing box is lifted off the assembly jig and reaches the placement area, the drive motor 14 is started, and the drive motor 14 drives the flip screw 15 through the transmission mechanism 16, so that the flip frame 17 rotates around the flip pin 12 with the upper flip head 18 to slowly move away from the upper frame 10, and simultaneously pushes the overall frame to rotate in the opposite direction until the overall frame clamps the entire wing box and flips it to a horizontal state.

[0064] Based on the off-frame flipping device for vertically assembling a wing box provided in the above embodiments of the present invention, the embodiment of the present invention also provides a method for using the off-frame flipping device for vertically assembling a wing box in the above embodiments, and the method for using is:

[0065] At least two lower frame flipping devices as used in the above embodiment are positioned and connected to the preset position of the wing box, and after the main lifting rings 2 of the two lower frame flipping devices are hung by the hook of the crane, the two lower frame flipping devices are used to synchronously flip the entire wing box.

[0066] In one implementation of the embodiment of the present invention, referring to Figures 1 to 3 As shown, the method for using the wing box unloading and flipping device comprises the following steps:

[0067] Step 1, connect the hook of the crane to the main lifting ring 1 on the top of the lower frame turning device, and lift the entire structure of the upper turning head 18, the turning frame 17, and the upper surrounding frame 10 to the assembly area of ​​the wing box;

[0068] Step 2, using process bolts to connect the front positioning joint 13 on the upper enclosure frame 10 with the wing upper wall panel 19 and the front beam 20, and using process bolts to connect the rear positioning joint 9 on the upper enclosure frame 10 with the wing upper wall panel 19 and the rear beam 21, so that the upper enclosure frame 10 is fixed on the wing upper wall panel 19;

[0069] Step 3, connecting the hook of the crane to the lower frame lifting ring 5 on the lower frame 3, and lifting the lower frame 3 as a whole to above the lower wing surface of the wing box in the wing box assembly area;

[0070] Step 4, the upper enclosure 10 is fixedly connected to the same side end of the lower enclosure 3 by the enclosure upper connecting pin 2 and the enclosure lower connecting pin 8;

[0071] Step 5, rotating the adjustment handwheels at the rear ends of the front pressing plate 4 and the rear pressing plate 6 of the lower enclosure 3 to ensure that the pressing plate 4 and the rear pressing plate 6 are pressed against the lower wing wall panel 22;

[0072] Step 6, rotating the adjustment hand wheel at the rear end of the rear beam pressing support plate 7 installed on the inner side of the cross beam in the lower frame 3, to ensure that the rear beam pressing support plate 7 is pressed tightly against the rear beam 21 of the wing box;

[0073] Step 7, repeat the above steps 1 to 6 to install another lower frame flipping device at another position of the wing box;

[0074] Step 8, open the wing box assembly jig, hang the crane hook on the main lifting rings 1 of the two lower frame flipping devices respectively, lift them synchronously, and lift the wing box away from the wing box assembly area;

[0075] Step 9, when the wing box is lifted off the assembly area and reaches the placement area, start the drive motor 14, which drives the flip screw 15 through the transmission mechanism 16, so that the flip frame 17 rotates around the flip pin 12 with the upper flip head 18 to slowly move away from the upper frame 10, and simultaneously pushes the overall frame to rotate in the opposite direction until the overall frame clamps the entire wing box to flip it to a horizontal state and place it on a horizontal bracket.

[0076] Step 10, rotating the adjusting hand wheel, separating the front pressing plate 4, the rear pressing plate 6 and the rear beam pressing plate 7 from the wing lower wall plate 22 and the rear beam 21 respectively;

[0077] Step 11, unplug the upper connecting pin 2 and the lower connecting pin 8 of the enclosure frame, separate the upper enclosure frame 10 from the lower enclosure frame 3, and then pull out the lower enclosure frame 3;

[0078] Step 12, remove the connection bolts between the front positioning joint 13 and the rear positioning joint 9 of the upper enclosure frame 10 and the wing upper wall plate 19, the front beam 20, and the rear beam 21, and then lift the upper enclosure frame 10 away.

[0079] The embodiment of the invention provides a down-frame flipping device and a method of using it for vertical assembly of a wing box. In the down-frame flipping device, the wing box is positioned, installed and conformally pressed by the integral frame of the upper frame 10 and the lower frame 3; and the flipping mechanism formed by the flip frame 17 and the upper flip head 18 and the hinged form and driving form of the integral frame are used to make the two parts of the structure rotate in opposite directions along the hinge axis to achieve the overall flipping of the wing box. The down-frame flipping device provided by the embodiment of the invention realizes rapid down-frame and stable and reliable flipping. The integrated down-frame flipping device simplifies the tooling installation and disassembly process and improves assembly efficiency. In addition, the upper and lower frame envelope design adopted can achieve overall reliable wrapping of the entire wing box, ensuring the stability of the entire wing box during the process of being taken down from the shelf. A flip frame, a drive motor, a transmission mechanism and a flip screw for flip drive are integrated on the upper frame. The drive motor drives the flip screw to slowly separate the entire flip frame from the overall frame, ensuring the stability and reliability of the wing box during flipping, fundamentally avoiding the risks of shaking, bumping and falling during the flipping of the wing box, and greatly improving the efficiency of taking the wing box off the shelf and the stability and reliability during the flipping process.

[0080] Although the embodiments disclosed in the present invention are as above, the contents are only embodiments adopted to facilitate understanding of the present invention and are not intended to limit the present invention. Any technician in the field to which the present invention belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the present invention, but the patent protection scope of the present invention shall still be subject to the scope defined in the attached claims.

Claims

1. A wing box unloading and turning device for vertical assembly of a wing, characterized in that: include: A main lifting ring (1), an upper surrounding frame (10), a lower surrounding frame (3), a turning frame (17), an upper turning head (18), a front pressing plate (4), a rear pressing plate (6), a rear beam pressing plate (7), a front positioning joint (13), and a rear positioning joint (9); The upper enclosure (10) and the lower enclosure (3) are connected at one end by an upper enclosure connecting pin (2) and at the other end by a lower enclosure connecting pin (8); a front pressing card (4) and a rear pressing card (6) are installed at the front and rear positions of the inner side of the lower enclosure (3); a front positioning joint (13) and a rear positioning joint (9) are installed at the front and rear positions of the inner side of the upper enclosure (10); an integral enclosure sleeve formed by the upper enclosure (10) and the lower enclosure (3) is installed on the wing box section, and the upper enclosure (10) and the upper surface of the wing box section are positioned and installed by the front positioning joint (13) and the rear positioning joint (9), and the wing box is conformally pressed by the front pressing card (4) and the rear pressing card (6); The upper turning head (18) is configured as a hollow structure, movably mounted on the frame head at the front end of the upper frame (10), and a main lifting ring (1) is installed at the front end of the upper turning head (18); the rear end of the turning frame (17) is hinged to a connecting ear structure extending from the outer side of the upper frame (10), and the front end of the turning frame (17) is fixedly connected to the upper end surface of the upper turning head (18); A screw drive mechanism is arranged inside the flip frame (17), wherein the screw passes through the flip frame (17) at a preset inclination angle, and one end of the screw is fixedly connected to the outer side of the upper enclosure frame (10); the screw drive mechanism inside the flip frame (17) drives the screw to move, so as to drive the upper enclosure frame (10) and the flip frame (17) to rotate relative to each other around the hinge axis as the rotation center, thereby driving the wing box section to flip as a whole through the whole enclosure frame.

2. The unloading and turning device for vertically assembling a wing box according to claim 1, characterized in that: The outer shapes of the front positioning joint (13) and the rear positioning joint (9) installed on the upper enclosure frame (10) are consistent with the outer shapes of the wing upper wall plate (19), and process positioning holes are pre-opened on the front positioning joint (13) and the rear positioning joint (9). The front positioning joint (13) and the rear positioning joint (9) are fixedly connected to the wing upper wall plate (19) and the front beam (20) and the rear beam (21) by process bolts, thereby completing the positioning installation of the upper enclosure frame (10) on the wing box.

3. The unloading and turning device for vertically assembling a wing box according to claim 2, characterized in that: The outer shapes of the front pressing plate (4) and the rear pressing plate (6) installed on the lower enclosure frame (3) are consistent with the outer shapes of the wing lower wall plate (22), and an adjusting hand wheel is provided between the front pressing plate (4), the rear pressing plate (6) and the lower enclosure frame (3), and the front pressing plate (4) and the rear pressing plate (6) are respectively pressed against the wing lower wall plate (22) by adjusting the hand wheel; The lower enclosure frame (3) and the front pressing plate (4) and the rear pressing plate (6) arranged on the inner side thereof cooperate with the upper enclosure frame (10) and the front positioning joint (13) and the rear positioning joint (9) arranged on the inner side thereof to wrap and fix the wing box and to compress it to maintain its shape.

4. The unloading and turning device for vertically assembling a wing box according to claim 3 is characterized in that: Also includes: The rear beam presses the support plate (7); The upper enclosure frame (10) comprises a front enclosure frame head and an upper frame beam fixedly connected to the rear end of the enclosure frame head; the lower enclosure frame (3) is configured as an L-shaped structure, comprising a lower frame beam and a cross beam connected to the rear end of the lower frame beam; the front end of the lower frame beam is connected to the bottom end of the enclosure frame head, and the other end of the cross beam is connected to the end of the upper frame beam; A rear beam pressing support plate (7) is installed on the inner side of the cross beam of the lower enclosure frame (3), and the rear beam pressing support plate and the cross beam are provided with an adjusting hand wheel, and the rear beam pressing support plate (7) is pressed against the rear beam of the wing box by adjusting the hand wheel, and the wing box is wrapped and fixed together with the upper enclosure frame (10) and the lower enclosure frame (3).

5. A wing box unloading and turning device for vertical assembly of a wing according to any one of claims 1 to 4, characterized in that: Also includes: A lower enclosure frame lifting ring (5), a flip connecting plate (11) and a flip pin (12); The upper frame beam in the upper enclosure frame (10) is symmetrically provided with flip connection plates (11) protruding from the outer end surface thereof to form a connection ear structure on the outer side of the upper enclosure frame (10); the bottom end of the flip frame (17) is connected to the flip connection plate (11) via a flip pin (12); A lower frame lifting ring (5) is installed in the middle of the outer side of the lower frame (3), and the main lifting ring (1) installed at the front end of the upper turning head (18) and the lower frame lifting ring (5) installed on the outer side of the lower frame (3) are used for hanging in coordination with the hook of the crane.

6. A wing box unloading and turning device for vertical assembly of a wing according to any one of claims 1 to 4, characterized in that: The screw drive mechanism arranged inside the flip frame (17) comprises: a drive motor (14), a transmission mechanism (16) and a flip screw (15); The driving motor (14) and the transmission mechanism (16) are fixedly installed inside the flip frame (17), and the output shaft of the driving motor (14) is connected to the transmission shaft of the transmission mechanism (16); the flip lead screw (15) penetrates the transmission mechanism (16) and the flip frame (17) at a preset angle, and one end of the flip lead screw (15) is fixedly connected to the outside of the upper frame (10), and the flip lead screw (15) and the transmission mechanism (16) are engaged by rolling gear.

7. The unloading and turning device for vertically assembling a wing box according to claim 6, characterized in that: The screw drive mechanism arranged in the flip frame (17) is used to start the drive motor (14) when the wing box is lifted off the assembly jig and reaches the placement area. The drive motor (14) drives the flip screw (15) through the transmission mechanism (16), so that the flip frame (17) rotates around the flip pin (12) with the upper flip head (18) to slowly move away from the upper enclosure (10), and simultaneously pushes the entire enclosure to rotate in the opposite direction until the entire enclosure clamps the entire wing box and flips it to a horizontal state.

8. A method for using a wing box unloading and flipping device for vertical assembly, characterized in that: The method for using the off-frame flipping device for vertically assembling a wing box according to any one of claims 1 to 7 comprises: At least two lower frame flipping devices for vertically assembling wing boxes as described in claims 1 to 7 are positioned and connected to the preset positions of the wing boxes, and after the main lifting rings 2 of the two lower frame flipping devices are hung by the hook of a crane, the two lower frame flipping devices are used to synchronously flip the entire wing box.

9. The method for using the lower frame flipping device for vertically assembling a wing box according to claim 8, characterized in that: Specifically include: Step 1, connecting the hook of the crane to the main lifting ring (1) at the top of the lower frame turning device, and lifting the entire structure of the upper turning head (18), the turning frame (17), and the upper surrounding frame (10) to the assembly area of ​​the wing box; Step 2, using process bolts to connect the front positioning joint (13) on the upper enclosure frame (10) with the wing upper wall plate (19) and the front beam (20), and using process bolts to connect the rear positioning joint (9) on the upper enclosure frame (10) with the wing upper wall plate (19) and the rear beam (21), so that the upper enclosure frame (10) is fixed on the wing upper wall plate (19); Step 3, connecting the hook of the crane to the lower frame lifting ring 5 on the lower frame (3), and lifting the lower frame (3) as a whole to above the lower wing surface of the wing box in the wing box assembly area; Step 4, fixing and connecting the upper enclosure frame (10) and the lower enclosure frame (3) at the same side ends by means of the enclosure frame upper connection pin (2) and the enclosure frame lower connection pin (8); Step 5, rotating the adjustment hand wheels at the rear ends of the front pressing plate (4) and the rear pressing plate (6) of the lower enclosure frame (3) to ensure that the pressing plate (4) and the rear pressing plate (6) are pressed against the lower wing wall panel (22); Step 6, rotating the adjusting hand wheel at the rear end of the rear beam pressing support plate (7) installed on the inner side of the middle beam of the lower enclosure frame (3), to ensure that the rear beam pressing support plate (7) and the wing box rear beam (21) are pressed tightly together; Step 7, repeat the above steps 1 to 6 to install another lower frame flipping device at another position of the wing box; Step 8, open the wing box assembly jig, hang the crane hook on the main lifting rings (1) of the two lower frame flipping devices respectively, lift synchronously, and lift the wing box away from the wing box assembly area; Step 9, when the wing box is lifted off the assembly area and reaches the placement area, the drive motor (14) is started, and the drive motor (14) drives the flip screw (15) through the transmission mechanism (16), so that the flip frame (17) rotates around the flip pin (12) with the upper flip head (18) to slowly move away from the upper frame (10), and simultaneously pushes the entire frame to rotate in the opposite direction until the entire frame clamps the entire wing box and flips it to a horizontal state and places it on a horizontal bracket; Step 10, rotating the adjusting hand wheel to separate the front pressing plate (4), the rear pressing plate (6) and the rear beam pressing support plate (7) from the wing lower wall plate (22) and the rear beam (21) respectively; Step 11, unplug the upper connecting pin (2) and the lower connecting pin (8) of the enclosure frame, separate the upper enclosure frame (10) from the lower enclosure frame (3), and then pull out the lower enclosure frame (3); Step 12, remove the connection bolts between the front positioning joint (13) and the rear positioning joint (9) of the upper enclosure frame (10) and the wing upper wall plate (19), the front beam (20), and the rear beam (21), and then lift the upper enclosure frame (10) away.

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