38-frame fixing tool for repairing damaged airplane

Abstract

The utility model discloses a 38-frame fixing tool for repairing a damaged airplane, which belongs to the technical field of airplane overhaul, is used for supporting the positions of 38 frames of a rear airplane body after the airplane is adjusted to be horizontal, and comprises two wooden supports, a main body frame, a supporting seat and an adjusting lead screw, the supporting seat is mounted at the top of the main body frame, and the two wooden supports are mounted on the supporting seat side by side. An adjusting lead screw is installed on the lower portion of the wood support and used for adjusting the height of the wood support, the top of the wood support is arc-shaped, and the arc-shaped size is set according to the appearance of an aircraft air inlet skin. As a part of a supporting tool in a damaged aircraft repairing tool, the horizontal parking device can be matched with other assemblies to enable an aircraft to be kept in a horizontal parking state in the repairing process, and the aircraft cannot deviate due to the influence of external force in the repairing process.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft maintenance technology, and in particular relates to a 38-frame fixing fixture for repairing damaged aircraft. Background Technology

[0002] During the repair of a certain type of aircraft, the aircraft must be kept in a horizontal parking position. During the disassembly and replacement of aircraft cockpit components, the installation positions of each replacement component must be clamped and fixed, and their positions must not shift due to external forces. Through analysis of the repair technical plan and tooling development task book for the damaged aircraft, the required tooling for this aircraft generally includes three types: adjustment tooling, support tooling, and clamping and fixing tooling.

[0003] The main functions of each type of tooling are as follows:

[0004] 1. Adjusting the tooling: When leveling the aircraft, the altitude is adjusted using a tooling with lifting and lowering functions, thereby bringing the aircraft to a level position.

[0005] 2. Support fixtures: Used to maintain the aircraft's position after it has been leveled, and also to support the main body of the aircraft.

[0006] 3. Clamping and fixing fixture: clamp and fix the replacement component in the determined installation position to prevent its position from changing during installation.

[0007] Existing tooling, equipment, and technology cannot guarantee that the ground, supporting tooling, and aircraft will reach a relatively stable state. A set of 38-frame fixed tooling is urgently needed in the adjustment and support tooling. Utility Model Content

[0008] To address the aforementioned problems in the background art, this utility model provides a 38-frame fixing fixture for repairing damaged aircraft.

[0009] The technical solution adopted in this utility model is as follows:

[0010] A 38-frame fixing fixture for repairing damaged aircraft is a component of a damaged aircraft repair fixture. The bottom of the damaged aircraft repair fixture is a ground platform. The 38-frame fixing fixture is installed next to the ground platform and is used to support the 38-frame position of the rear fuselage after the aircraft is leveled. It includes a wooden support 1, a main frame 2, a support base 3, and an adjusting screw 4.

[0011] The main frame 2 has a mounting plate at its bottom for fixed installation on the ground. A frame structure is fixed on the mounting plate, and a support base 3 is set on the top of the frame structure for installing the wooden supports 1. There are two wooden supports 1, which are installed side by side on the support base 3. Their tops are arc-shaped, and the arc size is set according to the shape of the aircraft air intake skin. The top of the wooden supports 1 is equipped with a double layer of canvas and felt to prevent damage to the aircraft air intake skin. The wooden supports 1 are fixed around the perimeter using a U-shaped groove structure to prevent the wooden supports 1 from shaking or shifting. A sleeve is provided on the frame structure at the bottom of the wooden supports 1. An adjusting screw 4 and a set screw are installed in the sleeve. The adjusting screw 4 is equipped with a handwheel to meet the height and angle adjustment on the XZ axis plane. After adjusting the adjusting screw 4 into position by adjusting the handwheel, the set screw is turned to lock the position of the adjusting screw 4, preventing the adjusting screw from slipping back or damaging the existing position of the aircraft during long-term maintenance.

[0012] The beneficial effects of this utility model are as follows: As part of the support fixture in the repair tooling of damaged aircraft, this utility model can work with other components to keep the aircraft in a horizontal parking state during the repair process, so that the aircraft will not shift its position due to external forces during the repair process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall tooling for repairing damaged aircraft.

[0014] Figure 2 Axonometric view of the 38-frame fixed fixture.

[0015] Figure 3 The diagram shows the structure of the 38-frame fixed fixture, where (a) is the front view and (b) is the side view.

[0016] In the diagram: 1-Wooden support; 2-Main frame; 3-Support base; 4-Adjusting screw. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below.

[0018] This utility model provides a 38-frame fixing fixture for repairing damaged aircraft, which belongs to the components of damaged aircraft repair fixtures (such as...). Figure 1 The damaged aircraft repair fixture has a ground platform at its bottom. The 38-frame fixing fixture is installed next to the ground platform and is used to support the 38-frame position of the rear fuselage after the aircraft is leveled. It includes a wooden support 1, a main frame 2, a support seat 3, and an adjusting screw 4.

[0019] like Figure 2 and Figure 3As shown, the main frame 2 has a δ20mm thick Q235A steel plate at its bottom as a mounting plate for fixing it to the ground. A frame structure, made of Q235A / (130×130×10)mm cold-drawn square steel tubing, is fixed to the mounting plate. A support base 3, made of Q235A / (200×120×12)mm rectangular steel tubing, is installed at the top for mounting the wooden supports 1. Two wooden supports 1 are installed side-by-side on the support base 3. The material is δ200mm thick pine wood, and their tops are arc-shaped, with the arc dimensions set according to the shape of the aircraft air intake skin. A military green canvas is installed on the top of the wooden supports 1. The double-layered felt protection prevents damage to the aircraft's air intake skin. The wooden support 1 is fixed around its perimeter using a Q235A / δ10mm steel plate U-shaped groove structure to prevent it from shaking or shifting. A sleeve is provided on the frame structure at the bottom of the wooden support 1, and an adjusting screw 4 is installed inside the sleeve. The adjusting screw 4 is a Tr60 trapezoidal threaded screw with a matching handwheel. During use, the height and angle on the XZ axis plane are adjusted by adjusting the handwheel, which facilitates adjustment and fit according to the actual position of the aircraft. A set screw is provided inside the sleeve. After adjustment, rotating the set screw locks the position of the adjusting screw 4 to prevent slippage or backlash that could damage the aircraft's current position.

[0020] After the aircraft is leveled, use the handwheel to adjust the height of the wooden support 1 until the top arc of the wooden support 1 is completely flush with the lower wall panel of the engine nacelle to complete the installation.

Claims

1. A 38-frame fixing fixture for repairing damaged aircraft, characterized in that, The 38-frame fixing fixture is a component of the damaged aircraft repair fixture. The bottom of the damaged aircraft repair fixture is a ground platform. The 38-frame fixing fixture is installed next to the ground platform and is used to support the 38-frame position of the rear fuselage after the aircraft is leveled. It includes a wooden support (1), a main frame (2), a support seat (3), and an adjusting screw (4). The bottom of the main frame (2) is a mounting plate for fixing on the ground. A frame structure is fixed on the mounting plate, and a support seat (3) is set on the top of the frame structure for installing the wooden support (1). There are two wooden supports (1) in total, which are installed side by side on the support seat (3). The top of the wooden support (1) is arc-shaped, and the arc size is set according to the shape of the aircraft air intake skin. A sleeve is provided on the frame structure at the bottom of the wooden support (1). An adjusting screw (4) is installed in the sleeve to meet the height and angle adjustment. The adjusting screw (4) is locked in place to prevent damage to the existing position of the aircraft.

2. The 38-frame fixing fixture for repairing damaged aircraft according to claim 1, characterized in that, The wooden support (1) is topped with a double layer of canvas and felt to prevent damage to the aircraft air intake skin.

3. The 38-frame fixing fixture for repairing damaged aircraft according to claim 1, characterized in that, The wooden support (1) is fixed around its perimeter using a U-shaped groove structure to prevent the wooden support (1) from shaking or shifting.

4. The 38-frame fixing fixture for repairing damaged aircraft according to claim 1, characterized in that, The adjusting screw (4) is locked by a set screw, which is located inside the sleeve. After the adjusting screw (4) is adjusted to the correct position, the set screw is rotated to lock it.

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