Middle machine body assembly tool

Abstract

The utility model discloses a middle fuselage assembly tool which is used for assembling a middle fuselage of an airplane and comprises a tool frame, a lower wall plate supporting clamping plate, a side wall plate positioning clamping plate, a first annular clamping plate and a side wall plate suspension mechanism. The lower wall plate supporting clamping plate is arranged at the lower bottom of the tool frame and used for supporting a lower wall plate of the middle machine body. The side wall plate positioning clamping plates are arranged on the left side and the right side of the tool frame and used for supporting side wall plates of the middle machine body. The side wall plate suspension mechanism is arranged on the upper top of the tool frame and used for suspending side wall plates. The first annular clamping plate is arranged on the front side of the tool frame and used for connecting the front ends of the lower wall plate, the side wall plate and the upper wall plate of the middle machine body and fixing the lower wall plate, the side wall plate and the upper wall plate. Through the design of the middle fuselage assembly tool, the wallboards forming the middle fuselage can be accurately assembled, and the assembly precision and the assembly efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of aircraft assembly tools and fixtures, and relates to a middle fuselage assembly tool. Background Art

[0002] The middle fuselage of an aircraft is assembled by an upper wall panel, side wall panels, and a lower wall panel. Since the structural size of the middle fuselage of an aircraft is relatively large, the conventional assembly method is to first fix the lower wall panel assembly, then manually carry and place the side wall panels on the lower wall panel assembly, fix the two with the aid of clamping tools, then perform the assembly, and finally mount the upper wall panel on the side wall panels and assemble the side wall panels and the upper wall panel with the aid of clamping tools. The above solution has the technical problems of low assembly accuracy during the fixing process by conventional clamping tools and low assembly efficiency. Summary of the Utility Model

[0003] In order to solve the above technical problems, the utility model proposes the following technical solutions:

[0004] A middle fuselage assembly tool for assembling the middle fuselage of an aircraft, comprising a tooling frame, a lower wall panel support clamping plate, side wall panel positioning clamping plates, a first annular clamping plate, and a side wall panel suspension mechanism

[0005] A space for accommodating the middle fuselage is provided inside the tooling frame;

[0006] The lower wall panel support clamping plate is arranged at the lower bottom of the tooling frame, and the upper end surface thereof is a concave arc surface;

[0007] The first annular clamping plate is arranged at the front side of the tooling frame. The first annular clamping plate is of an annular plate structure, and limiting holes arranged along its circumferential direction are formed in the first annular clamping plate;

[0008] Two groups of side wall panel positioning clamping plates are provided and are respectively arranged on the left side and the right side of the tooling frame. The side end surface of the side wall panel positioning clamping plate is a concave arc surface;

[0009] The side wall panel suspension mechanism is arranged at the upper top of the tooling frame, and a suspension rod is arranged on the side wall panel suspension mechanism.

[0010] As a supplement to the technical solution of the utility model, the tooling frame comprises an upper top frame, a lower bottom frame, and support vertical beams

[0011] Both the upper top frame and the lower bottom frame are square frame structures formed by splicing cross beams and longitudinal beams. Vertical support beams are arranged at four corner positions of the lower bottom frame. The upper top frame is arranged at the upper end of the support vertical beams. The lengths of the upper top frame and the lower bottom frame are both greater than the length of the middle fuselage;

[0012] A plurality of vertically arranged side wall plate clamping beams are evenly arranged between two support vertical beams in the length direction of the tooling frame. The side wall plate positioning clamping plate is arranged on the side wall plate clamping beam, and the upper end of the side wall plate clamping beam is connected to the upper top frame, and the lower end of the side wall plate clamping beam is connected to the lower bottom frame.

[0013] As a supplement to the technical solution of the present invention, it further includes a middle fuselage conveying mechanism. The middle fuselage conveying mechanism is arranged on the lower bottom frame of the tooling frame and includes a horizontally arranged slide rail and a middle fuselage bearing frame arranged on the slide rail and slidably connected to the slide rail.

[0014] The upper end of the side wall plate clamping beam is detachably connected to the upper top frame, and the lower end of the side wall plate clamping beam is detachably connected to the lower bottom frame.

[0015] As a supplement to the technical solution of the present invention, the middle fuselage conveying mechanism further includes a landing gear fixing mechanism.

[0016] The landing gear fixing mechanism includes a base arranged on the middle fuselage bearing frame and a fixed support rod arranged on the base. The base is provided with a positioning hole for the fixed support rod to pass through.

[0017] As a supplement to the technical solution of the present invention, the middle fuselage conveying mechanism further includes a slide rail base. The slide rail is arranged on the lower bottom frame of the tooling frame through the slide rail base. The slide rail base is horizontally arranged, and the slide rail is arranged at the upper end of the slide rail base.

[0018] As a supplement to the technical solution of the present invention, it further includes a bearing frame fixing base for fixing the middle fuselage bearing frame. The bearing frame fixing base is fixedly arranged on the lower bottom frame of the tooling frame.

[0019] Threaded holes are provided on the side surface of the middle fuselage bearing frame, and through holes for bolts to pass through are provided on the bearing frame fixing base. When fixing the middle fuselage bearing frame, bolts are used to pass through the through holes on the bearing frame fixing base and are screwed into the threaded holes on the middle fuselage bearing frame to fix the middle fuselage bearing frame.

[0020] As a supplement to the technical solution of the present invention, it further includes an upper wall plate positioning clamping plate. The upper wall plate positioning clamping plate is arranged on the upper top of the tooling frame, and the lower end surface of the upper wall plate positioning clamping plate is a concave arc surface.

[0021] As a supplement to the technical solution of the present invention, the second annular clamping plate is arranged at the rear side of the tooling frame, and the structure of the second annular clamping plate is the same as that of the first annular clamping plate.

[0022] Beneficial effects: In one aspect of the utility model, the lower wall plate and the side wall plate of the central fuselage are initially positioned through the design of the lower wall plate support card plate and the side wall plate positioning card plate, and the side wall plate is further positioned through the side wall plate suspension mechanism. Through the setting of the first annular card plate and the second annular card plate, the precise longitudinal direction of each wall plate of the central fuselage is limited, and support and fixation can be provided during its assembly. In another aspect of the utility model, through the setting of the central fuselage conveying mechanism, the central fuselage can be transported out of the tooling frame after the assembly of the central fuselage is completed, avoiding improper operation during manual transportation that causes the central fuselage to collide with the tooling frame and cause damage to the central fuselage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model.

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the tooling frame of the utility model.

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the fuselage conveying mechanism in the utility model.

[0027] Figure 5 for Figure 1 Enlarged structural diagram at A in the middle.

[0028] In the figure: 1. tooling frame, 2. lower wall panel support card plate, 3. side wall panel positioning card plate, 4. first annular card plate, 5. suspension rod, 6. upper frame, 7. lower frame, 8. support vertical beam, 9. horizontal beam, 10. longitudinal beam, 11. side wall panel card plate support beam, 12. middle fuselage conveying mechanism, 13. slide rail, 14. middle fuselage load frame, 15. landing gear fixing mechanism, 16. base, 17. fixed support rod, 18. slide rail base, 19. load frame fixed base, 20. upper wall panel positioning card plate, 21. second annular card plate, 22. side wall panel suspension mechanism, 23. joint, 24. landing gear. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection, an electrical connection, or communication with each other; it may be a direct connection, or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] As Figure 1 As shown in FIG. *** to FIG. ****, the middle fuselage assembly tooling is used for assembling the middle fuselage of an aircraft. The middle fuselage of the aircraft includes a lower wall panel, side wall panels, and an upper wall panel. There are two groups of side wall panels, which together with the lower wall panel and the upper wall panel enclose a cylindrical middle fuselage structure. The middle fuselage assembly tooling of the present utility model is used for positioning and assembling the lower wall panel, side wall panels, and upper wall panel of the middle fuselage. The lower wall panel, side wall panels, and upper wall panel of the middle fuselage all include an arc-shaped frame and a skin, and the skin covers the machined frame.

[0032] The middle fuselage assembly tooling includes a tooling frame 1, a lower wall panel support clamping plate 2, side wall panel positioning clamping plates 3, a first annular clamping plate 4, and a side wall panel suspension mechanism 22.

[0033] The tooling frame 1 is in the shape of a cuboid frame structure, and there is a space inside the tooling frame 1 for accommodating the middle fuselage.

[0034] The lower wall panel support clamping plate 2 is arranged at the lower bottom of the tooling frame 1 and is used for supporting the lower wall panel of the middle fuselage. The upper end surface of the lower wall panel support clamping plate 2 is a concave arc surface, which fits with the lower wall panel of the middle fuselage.

[0035] The first annular clamping plate 4 is arranged at the front side of the tooling frame 1. The first annular clamping plate 4 is in the shape of an annular plate structure, and there are limiting holes arranged along its circumferential direction on the first annular clamping plate 4. The limiting holes are used for connecting and fixing the front ends of the side wall panels, lower wall panel, and upper wall panel of the middle fuselage. When assembling the middle fuselage, first place the lower wall panel of the middle fuselage on the lower wall panel support clamping plate 2, then abut the front end of the lower wall panel against the first annular clamping plate 4, and use a bolt structure to connect the front end of the lower wall panel with the first annular clamping plate 4.

[0036] The side wall plate positioning card plate 3 is arranged on the left side and the right side of the tooling frame 1. The side end face of the side wall plate positioning card plate 3 is a concave arc surface, so that the side wall plate positioning card plate 3 fits with the side wall plate of the middle fuselage. When assembling the side wall plate of the middle fuselage, the lower end of the side wall plate of the middle fuselage is abutted against the side end of the lower wall plate of the middle fuselage, and it is ensured that the side surface of the side wall plate abuts against the side wall plate positioning card plate 3. Then, the front end of the side wall plate is abutted against the first annular card plate 4, and the front end of the side wall plate is connected with the first annular card plate 4 through a bolt structure. After installing the side wall plate of the middle fuselage, the upper wall plate of the middle fuselage is placed on the side wall plate of the middle fuselage, so that the side end of the upper wall plate of the middle fuselage is located at the upper end of the side wall plate of the middle fuselage. Then, the front end of the upper wall plate of the middle fuselage is abutted against the first annular card plate 4, and the upper wall plate of the middle fuselage is connected with the first annular card plate 4 through a bolt structure. Through the above installation steps, the lower wall plate, the side wall plate and the upper wall plate of the middle fuselage are assembled to form a cylindrical middle fuselage structure.

[0037] Since the upper wall plate of the middle fuselage has a certain weight, and since the side wall plate of the middle fuselage is only fixed by the side wall plate card and the first annular card plate 4, when the upper wall plate is placed on the side wall plate of the middle fuselage, the side wall plate of the middle fuselage is prone to deformation. In view of this, the side wall plate is suspended by the side wall plate suspension mechanism 22 to further fix the side wall plate of the middle fuselage before installing the upper wall plate of the middle fuselage.

[0038] A joint 23 integrally formed with the machining beam of the middle fuselage side wall plate is provided on the middle fuselage side wall plate. The joint 23 passes through the skin and is exposed outside the skin, and a through hole for positioning is opened at the upper end of the joint 23.

[0039] The side wall plate suspension mechanism 22 is arranged on the upper top of the tooling frame 1. The side wall plate suspension mechanism 22 includes a suspension rod 5 for passing through the through hole on the joint 23, and a suspension connecting rod arranged on the upper top frame 6 of the tooling frame 1 for fixing the suspension rod. When installing the middle fuselage side wall plate, the suspension rod 5 of the side wall plate suspension mechanism 22 passes through the through hole on the joint 23 to suspend the side wall plate, further ensuring the stability of the side wall plate fixation.

[0040] As a preferred technical solution of the present invention, the tooling frame 1 includes an upper top frame 6, a lower bottom frame 7, and a support vertical beam 8.

[0041] Both the upper top frame 6 and the lower bottom frame 7 are square frame structures spliced by cross beams 9 and longitudinal beams 10. Vertical support vertical beams 8 are provided at four corner positions of the lower bottom frame 7, and the upper top frame 6 is arranged at the upper end of the support vertical beam 8. The lengths of the upper top frame 6 and the lower bottom frame 7 are both greater than the length of the middle fuselage.

[0042] A plurality of vertically arranged side wall plate clamping beam supports 11 are evenly arranged between two support vertical beams 8 in the length direction of the tooling frame 1, and the side wall plate positioning clamping plate 3 is arranged on the side wall plate clamping beam supports 11. The upper end of the side wall plate clamping beam support 11 is connected to the upper top frame 6, and the lower end of the side wall plate clamping beam support 11 is connected to the lower bottom frame 7.

[0043] Since the volume of the middle fuselage is large after assembly, it is easy to collide with the tooling frame 1 during the process of manually carrying the middle fuselage out of the tooling frame 1, causing knock and damage to the middle fuselage. As a preferred technical solution of the present invention, it further includes a middle fuselage conveying mechanism 12, and the middle fuselage conveying mechanism 12 is arranged on the lower bottom frame 7 of the tooling frame 1, including a horizontally arranged slide rail 13 and a middle fuselage bearing frame 14 arranged on the slide rail 13 and slidably connected to the slide rail 13.

[0044] The upper end of the side wall plate clamping beam support 11 is detachably connected to the upper top frame 6, and the lower end of the side wall plate clamping beam support 11 is detachably connected to the lower bottom frame 7. The preferred way for the side wall plate clamping beam support 11 to be detachably connected to the upper top frame 6 and the lower bottom frame 7 is by screwing.

[0045] After the upper wall plate, side wall plates, and lower wall plate of the middle fuselage are assembled, the first annular clamping plate 4, lower wall plate support clamping plate 2, side wall plate positioning clamping plate 3, and side wall plate suspension mechanism 22 are disassembled from the tooling frame 1, so that the assembled middle fuselage is located on the middle fuselage bearing frame 14 of the middle fuselage conveying mechanism 12. Then, the side wall plate clamping beam support 11 is disassembled from the tooling frame 1, and then the middle fuselage bearing frame 14 is pulled, so that the middle fuselage bearing frame 14 bears the middle fuselage and slides on the slide rail 13 and slides out of the tooling frame 1.

[0046] As a preferred technical solution of the present invention, the middle fuselage conveying mechanism 12 further includes a landing gear fixing mechanism 15.

[0047] A landing gear 24 connected to the frame of the lower wall plate of the middle fuselage is provided on the frame of the lower wall plate of the middle fuselage. The landing gear 24 passes through the skin and is located outside the skin. A through hole is provided at one end of the landing gear 24 away from the middle fuselage in the length direction.

[0048] The landing gear fixing mechanism 15 includes a base 16 arranged on the middle fuselage bearing frame 14 and a fixing support rod 17 arranged on the base 16 for passing through the through hole on the landing gear 24 to fix the landing gear 24. A positioning hole for the fixing support rod 17 to pass through is provided on the base 16. When fixing the landing gear 24 of the middle fuselage, the fixing support rod 17 is passed through the positioning hole on the base 16 and the through hole on the landing gear 24 to fix the landing gear 24 of the middle fuselage, and finally further fix the middle fuselage conveying mechanism 12.

[0049] As a preferred technical solution of this embodiment, the middle fuselage conveying mechanism 12 further includes a slide rail base 18. The slide rail 13 is arranged on the lower chassis 7 of the tooling frame 1 through the slide rail base 18. The slide rail base 18 is arranged horizontally, and the slide rail 13 is arranged at the upper end of the slide rail base 18.

[0050] As a preferred technical solution of this embodiment, it further includes a carrier fixing base 19 for fixing the middle fuselage carrier 14. The carrier fixing base 19 is fixedly arranged on the lower chassis 7 of the tooling frame 1.

[0051] Threaded holes are provided on the side surface of the middle fuselage carrier 14, and through holes for bolts to pass through are provided on the carrier fixing base 19. When fixing the middle fuselage carrier 14, bolts are used to pass through the through holes on the carrier fixing base 19 and are screwed into the threaded holes on the middle fuselage carrier 14 to fix the middle fuselage carrier 14. Through the above settings, when assembling the whole middle fuselage, the middle fuselage carrier 14 is prevented from sliding along the slide rail 13, and bolts are used in cooperation with the carrier fixing base 19 to fix the middle fuselage carrier 14. After the middle fuselage assembly is completed, the bolts are disassembled so that the middle fuselage carrier 14 can slide along the slide rail 13.

[0052] As a preferred technical solution of the present utility model, it further includes an upper wall plate positioning card 20. The upper wall plate positioning card 20 is arranged on the upper top of the tooling frame 1 for further fixing the middle fuselage upper wall plate. The lower end surface of the upper wall plate positioning card 20 is a concave arc surface so that it can fit with the middle fuselage upper wall plate.

[0053] When assembling the middle fuselage upper wall plate, first place the middle fuselage upper wall plate on the middle fuselage side wall plate, and then install the upper wall plate positioning card 20 on the upper top of the tooling frame 1 so that the lower end surface of the upper wall plate positioning card 20 abuts against the middle fuselage upper wall plate to further fix the middle fuselage.

[0054] As a preferred technical solution of the present utility model, it further includes a second annular card 21. The second annular card 21 is arranged at the rear side of the tooling frame 1, and the structure of the second annular card 21 is the same as that of the first annular card 4. After positioning the upper wall plate, side wall plate and lower wall plate of the middle fuselage, install the second annular card 21 on the tooling frame 1, and connect the rear ends of the upper wall plate, side wall plate and lower wall plate of the middle fuselage to the second annular card 21 to further fix each wall plate of the middle fuselage.

[0055] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A mid-fuselage assembly tool, used for assembling the mid-fuselage of an aircraft, characterized in that: The mid-fuselage assembly tool comprises a tool frame (1), a lower wall panel support card plate (2), a side wall panel positioning card plate (3), a first annular card plate (4), and a side wall panel suspension mechanism (22). The tooling frame (1) is provided with a space for accommodating the middle fuselage; The lower wall plate supporting card plate (2) is arranged at the lower bottom of the tooling frame (1), and its upper end surface is a concave arc surface; The first annular clamping plate (4) is arranged on the front side of the tooling frame (1); the first annular clamping plate (4) is an annular plate-shaped structure, and the first annular clamping plate (4) is provided with limiting holes arranged along its circumferential direction; The side wall plate positioning clamps (3) are provided in two groups and are respectively arranged on the left and right sides of the tooling frame (1); the side end surfaces of the side wall plate positioning clamps (3) are concave arc-shaped surfaces; The side wall plate suspension mechanism (22) is arranged on the upper top of the tooling frame (1), and a suspension rod (5) is provided on the side wall plate suspension mechanism (22).

2. The mid-fuselage assembly tool according to claim 1, characterized in that: The tooling frame (1) comprises an upper frame (6), a lower frame (7), and a supporting vertical beam (8). The upper frame (6) and the lower frame (7) are both square frame structures formed by splicing cross beams (9) and longitudinal beams (10); four corners of the lower frame (7) are each provided with vertically arranged support beams (8); the upper frame (6) is arranged at the upper end of the support beams (8); and the lengths of the upper frame (6) and the lower frame (7) are both greater than the length of the middle fuselage; A plurality of vertically arranged side wall panel card support beams (11) are evenly arranged between two supporting vertical beams (8) in the length direction of the tooling frame (1); the side wall panel positioning card (3) is arranged on the side wall panel card support beam (11); and the upper end of the side wall panel card support beam (11) is connected to the upper top frame (6), and the lower end of the side wall panel card support beam (11) is connected to the lower bottom frame (7).

3. The mid-fuselage assembly tool according to claim 2, characterized in that: It also includes a middle fuselage conveying mechanism (12), which is arranged on the lower frame (7) of the tooling frame (1), and includes a transversely arranged slide rail (13), and a middle fuselage carrying frame (14) arranged on the slide rail (13) and slidably connected to the slide rail (13); The upper end of the side wall panel card support beam (11) is detachably connected to the upper top frame (6), and the lower end of the side wall panel card support beam (11) is detachably connected to the lower bottom frame (7).

4. The mid-fuselage assembly tool according to claim 3, characterized in that: The mid-fuselage conveying mechanism (12) further comprises a landing gear fixing mechanism (15); The landing gear fixing mechanism (15) comprises a base (16) arranged on the middle fuselage carrier frame (14), and a fixing support rod (17) arranged on the base (16); the base (16) is provided with a positioning hole for the fixing support rod (17) to pass through.

5. The mid-fuselage assembly tool according to claim 3, characterized in that: The mid-fuselage conveying mechanism (12) further comprises a slide rail base (18), the slide rail (13) being arranged on the lower base frame (7) of the tooling frame (1) via the slide rail base (18), the slide rail base (18) being arranged transversely, and the slide rail (13) being arranged at the upper end of the slide rail base (18).

6. The mid-fuselage assembly tool according to claim 3, characterized in that: It also includes a carrier frame fixing base (19) for fixing the center fuselage carrier frame (14), wherein the carrier frame fixing base (19) is fixedly mounted on the lower base frame (7) of the tooling frame (1). The side surface of the middle fuselage carrier (14) is provided with a threaded hole, and the carrier fixing base (19) is provided with a through hole for bolts to pass through. When the middle fuselage carrier (14) is fixed, the bolts are passed through the through holes on the carrier fixing base (19) and screwed into the threaded holes on the middle fuselage carrier (14) to fix the middle fuselage carrier (14).

7. The mid-fuselage assembly tool according to claim 1, characterized in that: It also comprises an upper wall plate positioning card plate (20), wherein the upper wall plate positioning card plate (20) is arranged on the upper top of the tooling frame (1), and the lower end surface of the upper wall plate positioning card plate (20) is a concave arc surface.

8. The mid-fuselage assembly tool according to claim 1, characterized in that: The second annular clamping plate (21) is arranged on the rear side of the tooling frame (1), and the structure of the second annular clamping plate (21) is the same as that of the first annular clamping plate (4).

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