Anti-damage tool for aircraft hanging point covering cap and process disassembly and assembly method

Abstract

The invention relates to an aircraft hanging point covering cap damage prevention tool and a process disassembly and assembly method, and belongs to the technical field of process equipment design and manufacturing. According to the tool, zero point positioning of the lower surface of the wing can be effectively achieved through the fixed supporting point and the movable supporting point, the wing lower surface part is attached to the lower surface of the wing through the handles on the two sides of the tool, displacement is prevented, and damage to fixing holes of the wing lower surface part can be avoided through the tool; meanwhile, the problems that an operator on the upper portion of a wing cannot effectively use force and the wing is scratched due to the fact that the parts on the lower surface of the airplane are not firmly fixed are solved, the surface quality of the airplane is guaranteed, and the surface qualification rate of the appearance of the airplane is increased.

Description

Technical Field

[0001] The invention relates to an anti-damage tool for an aircraft hanging point cover and a process disassembly and assembly method, belonging to the technical field of process equipment design and manufacturing. Background Art

[0002] Due to the upper surface cover of the aircraft hanging point (see attached Figure 1 1) and the lower surface parts of the wing (see attached Figure 1 2) by bolts (see attached Figure 1 3) is assembled into one body to ensure the closure of the upper and lower surfaces of the aircraft wing. Therefore, when the cover is disassembled, because there is no fixed point, the disassembly force is very large, which is easy to cause damage to the fixing holes of the lower surface parts of the wing, the lower part body, the upper cover and the upper and lower wing surfaces. The existing disassembly method is to use a circlip pliers to fix the lower surface parts of the wing (see attached Figure 1 2) in the figure, since the upward pushing force of the circlip pliers is limited, it is impossible to effectively fix the parts on the lower surface of the wing. This method not only has low disassembly efficiency, but is also extremely likely to cause damage to the fixing holes of the parts on the lower surface of the wing due to the up and down movement of the parts. Ultimately, it leads to low installation efficiency of the cover, and the cover and the surrounding wing surface cannot effectively fix the parts because the circlip pliers are subjected to force, causing the circlip pliers to slip out of the fixing holes on the lower surface of the wing, thereby causing scratches on the parts on the lower surface of the wing and damage to the lower skin. At the same time, because the bolts cannot effectively bear the force, the opener cannot effectively tighten the bolts, causing damage to the cover on the upper surface of the wing and the surrounding skin on the upper part of the wing, which needs to be solved urgently. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an efficient method for positioning the lower part of an aircraft wing. The tool can effectively realize the positioning of the zero point of the lower surface of the wing through a fixed support point and a movable support point, and the handles on both sides of the tool are used to fit the lower surface of the wing to the lower surface of the wing to prevent displacement. The use of the tool can avoid damage to the fixing holes of the lower surface parts of the wing and realize stable positioning of the lower surface parts of the aircraft. At the same time, the operator on the upper part of the wing does not have to worry about the occurrence of problems such as scratches on the wing due to the inability of the operator on the upper surface of the wing to effectively use force due to the loose fixation of the lower surface parts of the aircraft, thereby ensuring the surface quality of the aircraft and improving the qualified rate of the aircraft appearance surface.

[0004] To solve the above problems, the specific technical solutions of the present invention are as follows:

[0005] A method for disassembling and assembling an aircraft hanging point cover in an anti-damage manner; the steps are as follows

[0006] First, use the dedicated mounting point removal tool, see Figure 3, locate the fixing holes of the wing lower surface parts, and use the auxiliary handles on both sides of the tool to fit the wing lower surface parts to the wing lower surface to prevent displacement. Finally, use the above-mentioned special hanging point removal and fixing tool to fix the wing lower surface parts in the correct position to meet the head and tail requirements of the aircraft wing lower surface. The operator on the upper wing installs the hanging point cover by unfastening the knife.

[0007] During disassembly, first locate the fixing holes of the lower surface parts of the wing, use the auxiliary handles on both sides of the tool to fit the lower surface parts of the wing to the lower surface of the wing, then the operator of the lower wing holds the auxiliary handles upward with both hands, the operator of the upper wing uses a knife to unscrew the bolts, and then remove the lower surface parts of the wing and the upper surface cover of the wing.

[0008] The specific method is as follows:

[0009] Step 1.1, use the special aircraft hanging point cover anti-damage positioning tool to visually align the fixed support point with the distance between the two fixing holes of the wing lower surface parts, and adjust the distance between the fixed support point and the center point of the adjustable fixed support point in the aircraft hanging point cover anti-damage positioning tool to match the distance between the fixing holes of the wing lower surface parts. Use the hand-tightening nut, the lower threaded rod on the adjustable fixed support point, and the fixing nut welded to the adjustable fixed support point to fix the adjustable fixed support point.

[0010] Step 1.2: First, place the wing lower surface parts into the wing shaft hole. Use the special aircraft hanging point cover anti-damage positioning tool to hold the auxiliary handle and insert the fixed support point and adjustable fixed support point into the fixed hole of the wing lower surface parts. Rotate the auxiliary handles on both sides of the aircraft hanging point cover anti-damage positioning tool to adjust the wing lower surface parts to be flush with the wing.

[0011] In step 1.3, the operator on the lower wing holds the auxiliary handle upward with both hands, and the operator on the upper wing passes the bolts through the wing upper surface cover on the wing, and uses a screwdriver to tighten the bolts until the wing upper surface cover is flush with the wing upper surface.

[0012] To remove the cover, reverse the above steps:

[0013] Step 2.1 Use the adjustable fixed support point to adjust the distance between the fixed support point in the aircraft hanging point cover anti-damage positioning tool, the center point of the adjustable fixed support point, and the distance between the fixing holes of the wing lower surface parts. Use the hand-tightening nut, the lower threaded rod on the adjustable fixed support point, and the fixed nut welded together with the adjustable fixed support point to fix the adjustable fixed support point.

[0014] Step 2.2: On the lower part of the wing, the operator holds up the auxiliary handle with both hands to prevent the lower surface parts of the wing from shifting. On the upper part of the wing, the operator uses a knife to unscrew the bolts on the upper part of the wing.

[0015] Step 2.3 Remove the upper wing cover and lower wing parts.

[0016] The aircraft hanging point cover anti-damage positioning tool comprises 7 parts: a support base with a protective pad, a fixed support point, an adjustable fixed support point, a hand-tightening nut, a threaded rod auxiliary handle, etc. The protective pad with grooves and holes is fixed to the support base by an adhesive, the fixed support point is welded to the support base, the adjustable fixed support point and the fixed nut are welded to the adjustable fixed support point, the lower part of the adjustable fixed support point has a thread, the hand-tightening nut is tightened, and the thread on the hand-tightening nut is used to tighten the support base. The two auxiliary handles are welded to the support base by welding.

[0017] The working principle of this special high-efficiency aircraft hanging point cover anti-damage positioning tool is, first, adjust the distance between the adjustable fixing support point and the fixed support point to be equal to the two wing lower surface part fixing holes, tighten the nut by hand through the thread, insert the adjustable fixing support point and the fixed support point into the lower surface part fixing hole, use the auxiliary handles on both sides to fix the wing lower surface part to the correct position, and then use the unlocking tool to disassemble the bolts for installing and removing the wing upper surface cover until the wing upper surface cover is installed flush with the wing upper surface or the wing upper surface cover and the wing lower surface parts are removed, and the tool is put back into the tool box.

[0018] Advantages of the invention:

[0019] Because the disassembly method of the special and efficient aircraft hanging point cover anti-damage positioning tool is cleverly designed and uses a special aircraft hanging point cover anti-damage positioning tool, it not only ensures that the fixing holes of the parts on the lower surface of the aircraft wing and the upper and lower wing surfaces are not damaged, but also greatly improves the efficiency of the disassembly and installation of the aircraft hanging point cover, and at the same time, reduces the labor intensity of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the installation of the wing hardpoint cover;

[0021] Figure 2 It is a partial schematic diagram of the parts on the lower surface of the wing;

[0022] Figure 3 It is a front view of a tool for removing a cover from an aircraft attachment point;

[0023] Figure 4 It is a top view of an aircraft attachment point cover removal tool;

[0024] Figure 5 It is a schematic diagram of the installation of the aircraft attachment point cover removal tool and the wing lower surface parts;

[0025] Figure 6 It is a schematic diagram of the local dimensions of the parts on the lower surface of the wing;

[0026] Figure 7 It is a schematic diagram of the dimensions of a tool for removing a cover from an aircraft attachment point;

[0027] Figure 8 This is the main view of the adjustable fixed support point and hand-tightened nut of the aircraft hanging point cover removal tool;

[0028] Fig. 9 It is a partial schematic diagram of the support base and adjustable support points of the aircraft attachment point cover removal tool;

[0029] Fig.10 It is a partial schematic diagram of a support pedestal for an aircraft attachment point cover removal tool;

[0030] Fig.11 is a schematic diagram of a screw;

[0031] Fig.12 It is a schematic diagram of the fixing nut;

[0032] Fig.13 It is a hand-tightened nut.

[0033] Figure captions: 1. Cover on the upper surface of the aircraft attachment point; 2. Parts on the lower surface of the wing; 3. Bolts; 4. Fixing holes; 5. Wing shaft holes; 6. Fixing holes; 7. Fixed support points; 8. Adjustable fixed support points; 9. Hand nuts; 10. Threaded rods; 11. Auxiliary handles; 12. Support base; 13. Protective pads; 14. Connection parts; 15. Adjustable fixed support points; 16. Fixing holes; 17. Hand nuts; 18. Fixed support points; 19. Hand nuts; 20. Adjustable fixed support points; 21. Fixed nuts; 22. Homemade plugs; 23. Screw rods; 24. Screw rods. DETAILED DESCRIPTION

[0034] Embodiment 1:

[0035] A method for disassembling and assembling an aircraft hanging point cover in an anti-damage manner; the steps are as follows

[0036] In step 1.1, a special aircraft hanging point cover anti-damage positioning tool is used to visually align the fixed support point 7 with the distance between the two wing lower surface part fixing holes 6, and the distance between the center points of the fixed support point 7 and the adjustable fixed support point 8 in the aircraft hanging point cover anti-damage positioning tool is adjusted to match the distance between the wing lower surface part fixing holes 6. The adjustable fixed support point is fixed by using a hand-tightening nut 9, a lower threaded rod 10 on the adjustable fixed support point, and a fixing nut 21 welded to the adjustable fixed support point.

[0037] In step 1.2, first place the wing lower surface part 2 into the wing shaft hole 5, use a special aircraft hanging point cover anti-damage positioning tool to hold the auxiliary handle 11 by hand to insert the fixed support point 7 and the adjustable fixed support point 8 into the wing lower surface part fixing hole 6, and rotate the auxiliary handles 11 on both sides of the aircraft hanging point cover anti-damage positioning tool to adjust the wing lower surface part 2 to be flush with the wing.

[0038] In step 1.3, the operator at the lower part of the wing holds the auxiliary handle 11 upward with both hands, and the operator at the upper part of the wing passes the bolt 3 through the wing upper surface cover 1 on the wing, and uses a screwdriver to tighten the bolt 3 until the wing upper surface cover 1 is flush with the wing upper surface.

[0039] To remove the cover, reverse the above steps:

[0040] Step 2.1: Adjust the distance between the fixed support point 7 and the center point of the adjustable fixed support point 8 in the aircraft hanging point cover anti-damage positioning tool to match the distance between the fixing holes 6 of the wing lower surface parts through the adjustable fixed support point 8. The adjustable fixed support point is fixed by using the hand nut 9, the lower threaded rod 10 on the adjustable fixed support point, and the fixing nut 21 welded to the adjustable fixed support point.

[0041] In step 2.2, the operator at the lower part of the wing holds the auxiliary handle 11 upward with both hands to prevent the lower surface part 2 of the wing from being displaced, and the operator at the upper part of the wing unscrews the bolts 3 on the upper part of the wing by using a knife.

[0042] Step 2.3 Remove the wing upper surface cover 1 and the wing lower surface part 2.

[0043] The aircraft hanging point cover anti-damage positioning tool comprises: a support base 12 with a protective pad 13, a fixed support point 7, an adjustable fixed support point 8, a hand-tightening nut 9, a threaded rod 10 and an auxiliary handle 11. The protective pad 13 with grooves and holes is fixed to the support base 12 by an adhesive, the fixed support point is welded to the support base 12, the adjustable fixed support point and the fixing nut 21 are welded to the adjustable fixed support point, the lower part of the adjustable fixed support point is threaded, and the hand-tightening nut 19 is tightened, and the thread on the hand-tightening nut 19 is matched with the support base for tightening. The two auxiliary handles are welded to the support base by welding.

[0044] The working principle of the special high-efficiency aircraft hanging point cover anti-damage positioning tool is as follows: first, adjust the distance between the adjustable fixing support point 15 and the fixing support point 18 to be equal to the two wing lower surface part fixing holes 16, tighten the nut 17 by hand through the thread, insert the adjustable fixing support point 15 and the fixing support point 18 into the lower surface part fixing hole 16, use the auxiliary handles 11 on both sides to fix the wing lower surface part to the correct position, and then use the unlocking tool to disassemble the bolt 3 for installing and disassembling the wing upper surface cover until the wing upper surface cover is installed flush with the wing upper surface or the wing upper surface cover and the wing lower surface parts are removed, and put the tool back into the tool box.

[0045] Embodiment 2:

[0046] The bottom diameter of the wing lower surface parts in this embodiment is 95mm (different models may be between 90-100mm), and the center distance between the two fixing holes 4 is 25mm (different models may be between 20mm-30mm). The main dimensions of the wing lower surface parts during disassembly and assembly are shown in the attached figure. Figure 6 , see the attached diagram for the main dimensions of the special aircraft hanging point removal tool Figure 7 , Attachment Figure 8 . In this embodiment, the aircraft hanging point cover disassembly tool has an adjustable fixed support point 20 and a hand nut 19. The hand nut 19 is a standard part of 304 stainless steel with a diameter size of M8 and a pitch of 1.25mm. The screw 11 is a standard part of 304 stainless steel with a length of 30mm, a diameter size of M8, and a pitch of 1.25mm. The lower part is provided with a hole with a diameter size of 5mm, a depth of 8mm, and a pitch of 1.25mm. A special homemade plug 22 coated with anaerobic glue is installed. The upper part of the homemade plug 22 is a screw 23 with a diameter size of 5mm and a pitch of 1.25mm. The lower part is a part with a diameter of 10mm and a thickness of 3mm that is integrated with the homemade plugging screw to prevent the hand nut 19 from falling off after loosening. A fixing nut 21 with a diameter of M8, a thickness of 6.2 mm, and a length of 12.9 mm is installed on the upper part of the screw rod 24 to prevent it from falling off in the groove with a width of 8.5 mm and a length of 20 mm opened in the support seat 12. The upper part of the screw rod 24 is welded to an adjustable fixing support point 20 with a diameter of 3 mm and a length of 6 mm.

[0047] The upper part of the support base is 60mm long and 30mm wide. The upper half is provided with a groove of 20mm long, 14mm wide and 6.5mm thick and a groove of 20mm long, 8.5mm wide and 14mm thick. A fixed support point 7 of 3mm diameter and 6mm length is welded on the upper part. A protective pad 13 made of rubber with a thickness of 3mm and holes with a diameter of 3mm and a groove of 20mm length and 14mm width is bonded above the support base. It is used to prevent the friction between the tool and the lower surface parts of the wing and the wing. The two sides of the support base are welded to the auxiliary handle 11 through the connection part 14.

[0048] The method of disassembling the bomb in this embodiment is as follows: first, use the aircraft hanging point cover disassembly tool to adjust the spacing between the holes in the adjustable fixed support point and the fixed support point to be equal to the spacing between the fixing holes 4 of the lower wing parts, then insert the adjustable fixed support point and the fixed support point into the fixing holes of the lower wing parts, fix the lower parts of the aircraft, adjust the lower wing parts to be flush with the lower surface of the wing, and then use the knife to install or disassemble the wing parts. (If the lower wing parts are disassembled, the disassembled related parts should be put away.) After the work is completed, put the tool back into the tool box.

[0049] In the actual aircraft attachment point cover disassembly and installation process, the average disassembly or installation time of each aircraft attachment point cover is 3 to 5 minutes, ensuring that the wing upper surface cover, wing lower surface parts and wing lower surface are not damaged, and the disassembly efficiency is at least 3 times higher than the existing disassembly and installation method.

Claims

1. A method for disassembling and assembling an aircraft hanging point cover in an anti-damage manner, characterized in that: Here are the steps: Step 1: Use the aircraft hanging point cover anti-damage positioning tool to locate the fixing hole (6) of the wing lower surface part. Use the auxiliary handles (11) on both sides of the tool to fit the wing lower surface part to the wing lower surface to prevent displacement. Use the special hanging point removal and fixing tool to fix the wing lower surface part in the correct position to meet the requirements of the aircraft wing lower surface. The operator on the upper part of the wing can install the hanging point cover by unfastening the knife. Step 2: During disassembly, first locate the fixing hole (6) of the wing lower surface part, and use the auxiliary handles (11) on both sides of the tool to fit the wing lower surface part (2) to the wing lower surface. Then, the operator of the lower wing uses both hands to hold the auxiliary handles (11) upwards, and the operator of the upper wing uses a knife to unscrew the bolt (3), and then remove the wing lower surface part (2) and the wing upper surface cover (1).

2. A method for disassembling and assembling an aircraft hanging point cover in an anti-damage manner as claimed in claim 1, characterized in that: The first step is specifically performed as follows: In step 1.1, a special aircraft hanging point cover anti-damage positioning tool is used to visually align the fixed support point (7) with the distance between the two wing lower surface part fixing holes (6), and the distance between the center points of the fixed support point (7) and the adjustable fixed support point (8) in the aircraft hanging point cover anti-damage positioning tool is adjusted to match the distance between the wing lower surface part fixing holes (6); the adjustable fixed support point is fixed by using a hand-tightening nut (9) in conjunction with the lower threaded rod (10) on the adjustable fixed support point and a fixing nut (21) welded to the adjustable fixed support point; Step 1.2: first, place the wing lower surface part (2) into the wing shaft hole (5), use a special aircraft hanging point cover anti-damage positioning tool to insert the fixed support point (7) and the adjustable fixed support point (8) into the wing lower surface part fixing hole (6) by holding the auxiliary handle (11) by hand, and rotate the auxiliary handles (11) on both sides of the aircraft hanging point cover anti-damage positioning tool to adjust the wing lower surface part (2) to be flush with the wing; In step 1.3, the operator at the lower part of the wing holds the auxiliary handle (11) upward with both hands, and the operator at the upper part of the wing passes the bolt (3) through the wing upper surface cover (1) on the wing, and uses a screwdriver to tighten the bolt (3) until the wing upper surface cover (1) is flush with the wing upper surface.

3. A method for disassembling and assembling an aircraft hanging point cover in an anti-damage manner as claimed in claim 1 or 2, characterized in that: The second step is specifically performed as follows: Step 2.1: The fixed support point (7) in the aircraft hanging point cover anti-damage positioning tool is adjusted by the adjustable fixed support point (8) to match the distance between the center points of the adjustable fixed support point (8) and the fixing hole (6) of the wing lower surface part; the adjustable fixed support point is fixed by using the hand-tightening nut (9) and the lower threaded rod (10) on the adjustable fixed support point and the fixing nut (21) welded to the adjustable fixed support point; Step 2.2: The operator at the lower part of the wing uses both hands to hold the auxiliary handle (11) upward to prevent the lower surface part (2) of the wing from shifting. The operator at the upper part of the wing unscrews the bolts (3) on the upper surface of the wing by using a knife. Step 2.3 Remove the upper wing cover (1) and the lower wing parts (2).

4. A method for disassembling and assembling an aircraft hanging point cover in an anti-damage manner as claimed in claim 1 or 2, characterized in that: The aircraft hanging point cover anti-damage positioning tool comprises: a support base (12) with a protective pad (13), a fixed support point (7), an adjustable fixed support point (8), a hand-tightening nut (9), a threaded rod (10) and an auxiliary handle (11); the protective pad (13) with grooves and holes is fixed to the support base (12) by an adhesive, the fixed support point is welded to the support base (12), the adjustable fixed support point and the fixing nut (21) are welded to the adjustable fixed support point, the lower part of the adjustable fixed support point is threaded, the hand-tightening nut (19) is tightened, and the support base is tightened by the thread on the hand-tightening nut (19); the two auxiliary handles are welded to the support base by welding.

5. The anti-damage disassembly and assembly method of an aircraft hanging point cover according to claim 3, characterized in that: The aircraft hanging point cover anti-damage positioning tool comprises: a support base (12) with a protective pad (13), a fixed support point (7), an adjustable fixed support point (8), a hand-tightening nut (9), a threaded rod (10) and an auxiliary handle (11); the protective pad (13) with grooves and holes is fixed to the support base (12) by an adhesive, the fixed support point is welded to the support base (12), the adjustable fixed support point and the fixing nut (21) are welded to the adjustable fixed support point, the lower part of the adjustable fixed support point is threaded, the hand-tightening nut (19) is tightened, and the support base is tightened by the thread on the hand-tightening nut (19); the two auxiliary handles are welded to the support base by welding.

6. A method for disassembling and assembling an aircraft attachment point cover in an anti-damage manner as claimed in claim 1, 2 or 5, characterized in that: The distance between the adjustable fixing support point (15) and the fixed support point (18) is equal to the two fixing holes (16) of the parts on the lower surface of the wing.

7. A method for disassembling and assembling an aircraft attachment point cover in an anti-damage manner as claimed in claim 3, characterized in that: The distance between the adjustable fixing support point (15) and the fixed support point (18) is equal to the two fixing holes (16) of the parts on the lower surface of the wing.

8. The anti-damage disassembly and assembly method of an aircraft hanging point cover according to claim 4, characterized in that: The distance between the adjustable fixing support point (15) and the fixed support point (18) is equal to the two fixing holes (16) of the parts on the lower surface of the wing.

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