Leveling support tool for large aircraft assembly

Abstract

The application provides a leveling support tool for large aircraft assembly, and belongs to the technical field of aircraft assembly and manufacturing. The leveling support tool comprises a support tool for aircraft assembly, and a leveling tool connected with a support frame connecting plate of the support tool. The leveling tool comprises a bottom plate, and four pairs of leveling mechanisms movably connected between four corners of the support frame connecting plate and four corners of the bottom plate. Each leveling mechanism comprises a fixed support block, a screw, a support guide rod bolt, a pad, and a nut. The support guide rod bolt is hollow, one end of the support guide rod bolt passes through the support frame connecting plate, and is in thread connection with a pad. The nut is located on the support frame connecting plate and is in thread connection with the support guide rod bolt. One end of the screw passes through the support guide rod bolt and the pad in sequence, and is in thread connection with the fixed support block. The other end of the fixed support block is connected with the bottom plate. The leveling support tool can reduce the difficulty and labor intensity of assembly operation.

Description

Technical Field

[0001] This application belongs to the field of aircraft assembly and manufacturing technology, and more specifically, relates to a leveling support tooling for assembling large aircraft. Background Technology

[0002] Aircraft manufacturing typically employs rigid-connection tooling for assembly, with leveling achieved by adding or removing shims during the assembly process. However, large aircraft are bulky and have numerous parts, making leveling extremely difficult when using traditional assembly tooling. This places high demands on the flatness of the assembly plant floor and the installation skills of the assembly workers, increasing the labor intensity of assembly and potentially leading to long assembly times and inconsistent assembly precision in large aircraft manufacturing.

[0003] Therefore, designing a leveling support tooling for large aircraft assembly that is easy to install and adjust in order to improve the assembly quality of aircraft, especially large aircraft, and reduce the assembly difficulty is of great significance for improving the level of aircraft manufacturing. Utility Model Content

[0004] The purpose of this application includes, for example, providing a leveling support tooling for assembling large aircraft to at least solve some of the aforementioned problems.

[0005] This application provides a leveling support fixture for assembling large aircraft, comprising: an aircraft assembly support fixture and a leveling fixture connected to a support frame connecting plate on the support fixture. The leveling fixture includes a base plate and four pairs of leveling mechanisms movably connected to the four corners of the support frame connecting plate and the corresponding four corners of the base plate. Each leveling mechanism includes a fixed support block, a screw, a support guide bolt, a pad, and a nut. The support guide bolt is hollow, with one end passing through the support frame connecting plate and then fitting against and threadedly connected to a pad. The nut is located on the support frame connecting plate and is threadedly connected to the support guide bolt. One end of the screw passes through the support guide bolt and the pad in sequence and is threadedly connected to the fixed support block. The other end of the fixed support block is connected to the base plate.

[0006] In some embodiments, the support guide bolt is hollow and can be threadedly connected to the screw.

[0007] In some embodiments, a washer is fitted over the screw, and the washer is located at the end of the support guide bolt away from the washer block.

[0008] In some embodiments, the outer wall diameter of the support guide bolt gradually decreases near the end of the pad, the side is generally arc-shaped and has several external threads; the pad has a through hole, the diameter of the through hole gradually decreases near the end of the support guide bolt, the side is generally arc-shaped and has several internal threads adapted to the support guide bolt, and the end of the through hole near the fixed support block has several internal threads adapted to the screw.

[0009] In some embodiments, the supporting frame connecting plate and the base plate are both made of steel plate.

[0010] The leveling support tooling for large aircraft assembly provided in this application adjusts the horizontal state of the support frame connecting plate by adjusting the support guide rod bolts. It is easy to use, greatly reduces the difficulty and labor intensity of assembly operations, and improves the assembly and manufacturing quality and efficiency of aircraft, especially large aircraft. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of the assembly tooling in Example 1.

[0013] Figure 2 This is a schematic diagram of the leveling mechanism in the leveling support fixture in Example 1.

[0014] Figure 3 This is an axial view of the leveling support fixture in Example 1.

[0015] Figure 4 This is an enlarged structural schematic diagram of the support guide rod bolt component in the leveling support fixture in Example 1.

[0016] Figure 5 This is an enlarged structural diagram of the pad block in the leveling support fixture in Example 1.

[0017] Figure label:

[0018] 1-Support fixture, 101-Support frame connecting plate, 2-Leveling fixture, 201-Base plate, 202-Fixed support block, 203-Screw, 204-Washer, 205-Support guide rod bolt, 206-Nut, 207-Pan block. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0021] Reference Figure 1-3 This application provides a leveling support fixture for assembling large aircraft, comprising: an aircraft assembly support fixture 1, and a leveling fixture 2 connected to a support frame connecting plate 101 on the support fixture 1. The leveling fixture 2 includes a base plate 201 and four pairs of leveling mechanisms movably connected to the four corners of the support frame connecting plate 101 and the corresponding four corners of the base plate 201. Each leveling mechanism includes a fixed support block 202, a screw 203, a support guide rod bolt 205, a pad 207, and a nut 206. The support guide rod bolt 205 is hollow, with one end passing through the support frame connecting plate 101 and then fitting and threadedly connected to a pad 207. The nut 206 is located on the support frame connecting plate 101 and threadedly connected to the support guide rod bolt 205. One end of the screw 203 passes sequentially through the support guide rod bolt 205 and the pad 207 and then threadedly connected to the fixed support block 202. The other end of the fixed support block 202 is connected to the base plate 201.

[0022] In use, the nut 206 is fitted onto the outer circumference of the support guide bolt 205. The support guide bolt 205 is then passed through the support frame connecting plate 101 until it contacts the pad 207. The screw 203 is then passed through the support guide bolt 205 and the pad 207 until it abuts against the fixed support block 202. After that, the screw 203 and the nut 206 are tightened in sequence until they are in contact with the support frame connecting plate 101, thus completing the tooling assembly. Depending on the machine body placement requirements, at least three leveling support toolings are used to suspend the machine body. Among them, support tooling 1 in the leveling support tooling is used to support the machine body. When horizontal adjustment is required, the screw 203 and the nut 206 can be loosened to ensure a certain amount of adjustment. After adjusting the support frame connecting plate 101 to a horizontal state by turning the support guide bolt 205, the screw 203 and the nut 206 are tightened in sequence to complete the overall horizontal fixation.

[0023] The above-mentioned leveling support fixture has a simple overall structure, is easy to process, manufacture, install and use. Leveling can be achieved by rotating the support guide rod bolt 205 and screw 203. The operation is simple and can effectively improve assembly accuracy and efficiency. It has great development and application value in the field of aircraft assembly and manufacturing and is easy to promote and apply on a large scale.

[0024] In this embodiment, the support guide bolt 205 is hollow and can be threadedly connected to the screw 203.

[0025] In this embodiment, a washer 204 is sleeved on the outside of the screw 203. The washer 204 is located at the end of the support guide bolt 205 away from the pad 207, which enhances the connection tightness between the support guide bolt 205 and the screw 203.

[0026] Reference Figure 4-5 In this embodiment, the outer diameter of the support guide bolt 205 gradually decreases near the end of the pad 207, and the side is generally arc-shaped with several external threads. The pad 207 has a through hole, the diameter of the through hole gradually decreases near the end of the support guide bolt 205, the side is generally arc-shaped with several internal threads adapted to the support guide bolt 205, and the end of the through hole near the fixed support block 202 has several internal threads adapted to the screw 203. The pad 207 and the support guide bolt 205, which are generally arc-shaped and fit together, provide space for adjusting the support guide bolt 205, thereby adjusting the level of the support frame connecting plate 101 connected to it.

[0027] In this embodiment, the supporting frame connecting plate 101 and the base plate 201 are both made of steel plates, providing greater load-bearing capacity for the fuselage, especially large fuselages.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A leveling support fixture for assembling large aircraft, comprising a support fixture for assembling aircraft, characterized in that, Also includes: A leveling fixture connected to a support frame connecting plate on a supporting fixture, the leveling fixture including a base plate and four pairs of leveling mechanisms movably connected to the four corners of the support frame connecting plate and the corresponding four corners of the base plate; each leveling mechanism includes a fixed support block, a screw, a support guide rod bolt, a pad, and a nut, the support guide rod bolt being hollow inside, one end passing through the support frame connecting plate and then fitting against and threadedly connected to a pad, the nut being located on the support frame connecting plate and threadedly connected to the support guide rod bolt; one end of the screw passing through the support guide rod bolt and the pad in sequence and then threadedly connected to the fixed support block, the other end of the fixed support block being connected to the base plate.

2. The leveling support fixture according to claim 1, characterized in that, The support guide rod bolt is hollow and can be threadedly connected to the screw.

3. The leveling support fixture according to claim 1, characterized in that, A washer is fitted over the screw, and the washer is located at the end of the support guide bolt away from the washer block.

4. The leveling support fixture according to claim 1, characterized in that, The outer wall diameter of the support guide rod bolt gradually decreases near the end of the pad, and the side is generally arc-shaped with several external threads. The pad has a through hole, the diameter of the through hole gradually decreases near the end of the support guide rod bolt, the side is generally arc-shaped with several internal threads adapted to the support guide rod bolt, and the end of the through hole near the fixed support block has several internal threads adapted to the screw.

5. The leveling support fixture according to claim 1, characterized in that, The supporting frame connecting plate and the base plate are both made of steel plates.

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