General aircraft elevator trailing edge hinge tooling and use method

Abstract

The present invention discloses a general aircraft elevator trailing edge hinge tool and a method of use, wherein the tool comprises a tool body, a plurality of hinge clamps, bolts, and steel bars. The method of use comprises: placing all hinges coated with adhesive into the hinge clamps, and passing the steel bars through all hinge clamps; clamping the elevator trailing edge into the hinge bonding surface; passing the bolts through the tool and fitting them at the elevator opening for fixing; pre-curing the tool and the elevator; and separating the tool from the elevator and the elevator trailing edge hinge. The present invention can accurately ensure that all trailing edge hinge holes are kept at the same level, reduce the repair rate of components, and solve the problem of stress in the movement of the trim adjustment plate after installation.

Description

Technical Field

[0001] The invention relates to the field of aerospace technology, and in particular to the installation of an elevator hinge for a general aircraft. Background Art

[0002] The hinged winglets or adjustable winglets on the trailing edge of the main control surfaces (ailerons, elevators, rudders) of an aircraft are called trim tabs, which are divided into trim tabs, follow-up trim tabs, balance trim tabs, and spring trim tabs. Among them, the trim tab is a device for fine-tuning the ailerons, rudders, and elevators. Large aircraft generally have these three devices, but small aircraft are often only equipped with elevator trim.

[0003] The aircraft is trimmed with trim tabs during flight. Trimming means correcting certain unwanted flight attitude trends of the aircraft. The trim tabs can control the balance of the aircraft. By adjusting the position of the trim tabs, the rudder pressure on the three rudders can be reduced to zero, that is, the pilot cannot feel the rudder pressure on his hands, thus reducing the fatigue of aircraft driving.

[0004] The elevator of a general aircraft is a component that controls the aircraft's ascent and descent. The elevator trailing edge hinge is used to connect the elevator and the trim tab. Due to the presence of multiple hinges, it is difficult to ensure that the multiple hinge mounting holes remain on the same horizontal line when the general aircraft elevator trailing edge hinge is bonded, which in turn affects the installation of the trim tab, resulting in stress when the subsequent trim tab is active, affecting the trim tab's ability to correct the flight attitude trend. Summary of the invention

[0005] The technical problem solved by the present invention is that when the hinges of the trailing edge of the elevator of a general aircraft are bonded, it is difficult to ensure that a plurality of hinge mounting holes are kept on the same horizontal line.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a general aircraft elevator trailing edge hinge tool, including a tool body, a plurality of hinge clamps, bolts, and steel bars. The tool body includes a transverse main body member and a longitudinal member connected to the transverse main body member. All hinge clamps are arranged on the transverse main body member in a transverse row. The hinge clamps are provided with hinge through holes that can be aligned with hinge holes matched in the hinge clamps. A steel bar passes through the through holes of a row of hinge clamps and the hinge holes in the hinge clamps. The bolts are arranged on the longitudinal member and can be connected to the openings on the elevator.

[0007] A method for using a general aircraft elevator trailing edge hinge tool comprises the following steps:

[0008] Step 1, put all hinges coated with adhesive into the hinge clamp in a one-to-one manner, and pass the steel bar through a row of hinge through holes on the hinge clamp and the hinge hole in the hinge clamp;

[0009] Step 2: Insert the trailing edge of the elevator into the hinge bonding surface;

[0010] Step 3: Fit the tooling to the elevators, with the trailing edges of all elevators close to the hinge clamps;

[0011] Step 4: Bolts pass through the fixture and fit into the opening of the elevator to fix the relative position between the fixture and the elevator;

[0012] Step 5: Place the tooling and the elevator together in the pre-curing room for pre-curing treatment;

[0013] Step 6: After curing, separate the tooling from the elevator and the elevator trailing edge hinge.

[0014] The tooling described in the present invention has a simple structure and is light in weight. It can easily bond multiple hinges together on the trailing edge of the elevator and is easy to operate. When the elevator trailing edge hinges are bonded, the tooling can accurately ensure that all trailing edge hinge holes (i.e., hinge mounting holes) are maintained at the same level, thereby reducing the repair rate of components and solving the problem of stress caused by the movement of the trim adjustment piece after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings:

[0016] Figure 1 The schematic diagram of the general aircraft elevator trailing edge hinge tooling;

[0017] Figure 2 is a schematic diagram of a tooling body 10;

[0018] Figure 3 It is a schematic diagram of the general aircraft elevator trailing edge hinge tooling and hinge 60 after being matched.

[0019] Explanation of symbols in the figure:

[0020] 10. Tool body; 11. Horizontal main body; 12. Longitudinal parts;

[0021] 20. Hinge clamp; 21. Hinge hole;

[0022] 30. Bolts;

[0023] 40. Steel bars;

[0024] 60. Hinge; 61. Hinge bonding surface. DETAILED DESCRIPTION

[0025] Combination Figures 1 to 3A general aircraft elevator trailing edge hinge tooling includes a tooling body 10, a plurality of hinge clamps 20, bolts 30, and a steel bar 40. The tooling body includes a transverse main body member 11 and a longitudinal member 12 connected to the transverse main body member. All hinge clamps are arranged on the transverse main body member in a transverse row. The hinge clamps are provided with hinge through holes 21 that can be aligned with hinge holes matched in the hinge clamps. A steel bar 40 passes through the hinge through holes of a row of hinge clamps and the hinge holes in the hinge clamps. The bolts are arranged on the longitudinal member and can be connected to the openings on the elevator.

[0026] The method for using the universal aircraft elevator trailing edge hinge tool comprises the following steps:

[0027] Step 1, all hinges 60 coated with adhesive are placed in a one-to-one manner in the hinge clamp 20, and the steel bar 40 passes through a row of hinge through holes 21 on the hinge clamp and the hinge hole in the hinge clamp;

[0028] Step 2: Insert the trailing edge of the elevator into the hinge bonding surface 61;

[0029] Step 3: Fit the tooling to the elevators and make necessary adjustments until the trailing edges of all elevators are close to the hinge clamps 20;

[0030] Step 4: Bolt 30 passes through the tooling and fits into the opening of the elevator to fix the relative position between the tooling and the elevator;

[0031] Step 5: Place the tooling and the elevator together in the pre-curing room for pre-curing treatment;

[0032] Step 6: After curing, separate the tooling from the elevator and the hinge on the trailing edge of the elevator.

[0033] In step 1 of the above-mentioned method of use, the cross-section of the steel bar 40 is cylindrical, and the diameter of the steel bar is equal to the hinge through-hole 21 and the hinge hole. After the steel bar 40 passes through a row of hinge through-holes 21 on the hinge clamp block 20 and the hinge hole in the hinge clamp block, the steel bar is fixed to the tooling.

[0034] In step 3 of the above method of use, it is necessary that the trailing edges of all elevators are close to the hinge clamp 20. After the trailing edges of all elevators are close to the hinge clamp, the bolt 30 passes through the tooling and fits in the opening of the elevator to fix the relative position between the tooling and the elevator, thus ensuring that the installation position of all hinges is accurate.

[0035] In step 5 of the above method of use, before the tooling and the elevator are placed in a pre-curing room for pre-curing, the excess adhesive in the hinge 60 is squeezed out to fill the gap between the hinge and the elevator with the adhesive.

[0036] In step 6 of the above method of use, after the tooling is separated from the elevator and the hinge 60 at the elevator trailing edge, the bonding surface is appropriately polished.

[0037] In the above-mentioned usage method, the tooling needs to be cleaned and waxed before and after use to facilitate disassembly and reuse, thereby increasing the service life of the tooling.

[0038] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A general aircraft elevator trailing edge hinge tool, comprising a tool body (10), a plurality of hinge clamps (20), bolts (30), and a steel bar (40), characterized in that: The tooling body comprises a transverse main body member (11) and a longitudinal member (12) connected to the transverse main body member. All hinge clamps are arranged in a transverse row on the transverse main body member. The hinge clamps are provided with hinge through holes (21) that can be aligned with hinge holes matched in the hinge clamps. A steel bar (40) passes through the hinge through holes of a row of hinge clamps and the hinge holes in the hinge clamps. Bolts are arranged on the longitudinal member and can be connected to openings on the elevator.

2. A method for using the general aircraft elevator trailing edge hinge tooling according to claim 1, characterized in that: The steps include: Step 1, all hinges (60) coated with adhesive are placed in a hinge clamp (20) in a one-to-one manner, and the steel bar (40) passes through a row of hinge through holes (21) on the hinge clamp and the hinge hole in the hinge clamp; Step 2: Insert the trailing edge of the elevator into the hinge bonding surface (61); Step 3: Fit the tooling to the elevator, with the trailing edges of all elevators close to the hinge clamp (20); Step 4: Bolts (30) pass through the fixture and fit into the opening of the elevator to fix the relative position between the fixture and the elevator; Step 5: Place the tooling and the elevator together in the pre-curing room for pre-curing treatment; Step 6: After curing, separate the tooling from the elevator and the hinge on the trailing edge of the elevator; In step 5, before the tooling and the elevator are placed in a pre-curing room for pre-curing, the excess adhesive in the hinge (60) is squeezed out and the gap between the hinge and the elevator is filled with the adhesive.

3. The method for using the general aircraft elevator trailing edge hinge tool as claimed in claim 2, characterized in that: In step 6, after the tooling is separated from the elevator and the hinge (60) at the elevator trailing edge, the bonding surface is appropriately polished.

4. The method for using the general aircraft elevator trailing edge hinge tool as claimed in claim 2, characterized in that: The work clothes need to be cleaned and waxed before and after use.

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