Assembly tool for four-thread double-lug moving supporting plate assembly of aircraft covering cap

Abstract

The utility model discloses an assembling tool for a four-thread double-lug moving supporting plate assembly of an aircraft covering cap, and belongs to the technical field of mechanical part assembling tools. The assembling tool comprises a positioning base, a closing-in die, a positioning bush, a locking nut and a positioning bolt. A positioning base is arranged below the necking die; a positioning bolt is arranged in the central position of the positioning base; a locking nut is arranged at the lower end of the positioning bolt; and a positioning bush is arranged above the locking nut. The device is simple in structure, easy to process and manufacture and low in cost; use is convenient, and the requirement for the skill level of operators is low; assembly is fast, efficiency is high, and production cost is reduced; the assembly quality is stable and reliable, and the product percent of pass is high.

Description

Technical Field

[0001] This utility model relates to an assembly fixture for a four-threaded double-ear movable pallet assembly for an aircraft hatch, belonging to the technical field of mechanical parts assembly fixtures. Background Technology

[0002] The four-threaded double-ear movable pallet assembly is designed to meet the requirements of rapid opening and closing of aircraft access panels, thereby reducing the opening and closing time of aircraft access panels and improving aircraft maintenance efficiency.

[0003] Therefore, four-thread double-ear floating pallet assemblies are commonly used in the hatch positions of aircraft and other flying vehicles. They are used frequently and in large quantities, and this type of product is produced frequently and in large quantities.

[0004] Traditional assembly methods do not use positioning fixtures for assembly, which makes the assembly process not only difficult but also inefficient. Utility Model Content

[0005] The present invention aims to solve the technical problem that traditional assembly methods are difficult and inefficient.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An assembly tooling for a four-threaded double-ear movable pallet assembly 2 for an aircraft mouth cover includes a positioning base 1, a closing mold 3, a positioning bushing 4, a locking nut 5, and a positioning bolt 6.

[0008] A positioning base 1 is provided below the closing mold 3;

[0009] A positioning bolt 6 is provided in the center of the positioning base 1;

[0010] A locking nut 5 is provided on the lower end of the positioning bolt 6;

[0011] A positioning bushing 4 is provided above the locking nut 5.

[0012] The beneficial effects of adopting the above technical solution are:

[0013] 1. This utility model has a simple structure, is easy to process and manufacture, and has low cost;

[0014] 2. This utility model is easy to use and requires low skill levels from operators;

[0015] 3. This utility model is quick and efficient to assemble, reducing production costs;

[0016] 4. The assembly quality of this utility model is stable and reliable, and the product qualification rate is high. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a four-threaded double-ear floating pallet assembly.

[0018] In the diagram: 2.1-Double ear support bracket, 2.2-Washer a, 2.3-Washer b, 2.4-Outer spring, 2.5-Inner spring, 2.6-Bushing, 2.7-Screw;

[0019] Figure 2 for Figure 1 Top view.

[0020] Figure 3 This is a schematic diagram of the structure of this utility model.

[0021] In the diagram: 1-positioning base, 2-four-threaded double-ear movable support plate assembly, 3-closing mold, 4-positioning bushing, 5-locking nut, 6-positioning bolt;

[0022] Figure 4 This is a schematic diagram of the first step in the assembly process of this utility model.

[0023] In the diagram: 2.2-Washer a, 2.3-Washer b, 2.4-Outer spring, 2.5-Inner spring, 2.6-Bushing, 2.7-Screw;

[0024] Figure 5 This is an assembly diagram of the second step in the assembly process of this utility model.

[0025] In the diagram: 6 - positioning bolt, 2.6 - bushing;

[0026] Figure 6 This is an assembly diagram of the third step in the assembly process of this utility model.

[0027] In the diagram: 4 - positioning bushing, 5 - locking nut;

[0028] Figure 7 This is an assembly diagram of the fourth step in the assembly process of this utility model.

[0029] In the diagram: 1-positioning base, 3-sealing mold, C-sealing point;

[0030] Figure 8 This is a schematic diagram of the double-ear support bracket in a four-thread double-ear floating support assembly.

[0031] In the diagram: 2.1 - Dual ear rest bracket;

[0032] Figure 9 for Figure 8 The A-direction graph. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings:

[0034] like Figure 3 As shown, an assembly tooling for a four-threaded double-ear movable pallet assembly 2 for an aircraft mouth cover includes a positioning base 1, a closing mold 3, a positioning bushing 4, a locking nut 5, and a positioning bolt 6.

[0035] A positioning base 1 is provided below the closing mold 3;

[0036] A positioning bolt 6 is provided in the center of the positioning base 1;

[0037] A locking nut 5 is provided on the lower end of the positioning bolt 6;

[0038] A positioning bushing 4 is provided above the locking nut 5.

[0039] The material of the closing mold 3 of this utility model is Cr12MoV, which is tempered and heat-treated to achieve a hardness of HRC58-62, and the final surface treatment is passivation; the other components are all made of 45A, and the surface treatment is blackening, which can prevent corrosion and rust during use.

[0040] The four-threaded double-ear floating support plate is a component. Before use, each component needs to be assembled and sealed. The working steps are as follows:

[0041] Step 1: Install the inner spring 2.5, outer spring 2.4, washer a 2.2, and washer b 2.3 into the screw 2.7 in sequence to form the support plate assembly, as shown below. Figure 4 As shown;

[0042] Step 2: Install the pallet assembly into the positioning bolt 6 in the assembly fixture, and adjust the screw and washer a to be in the same direction and flush; then adjust the outer spring and inner spring to be coaxial, and finally install the screw and other components into the bushing 2.6 to form the bushing assembly, as shown. Figure 5 As shown;

[0043] Step 3: Install the bushing assembly along with the assembly fixture into the positioning bushing 4, and then tighten the locking nut 5 to form the positioning bushing assembly. Figure 6 As shown;

[0044] Step 4: Install the positioning bushing assembly into the positioning base 1 placed on the horizontal worktable of the hydraulic press. Fix the closing mold 3 onto the hydraulic press. Start and adjust the height of the hydraulic press to close the opening at point C. Then remove the locking nut and positioning bolt. Figure 7 As shown;

[0045] Step 5: Finally, install the positioning bushing assembly after the end capping is completed into the double ear support bracket 2.1, as shown in Figure 8, to complete the assembly.

Claims

1. An assembly tooling for a four-threaded double-ear movable pallet assembly (2) for an aircraft hatch, characterized in that: The assembly fixture includes a positioning base (1), a closing mold (3), a positioning bushing (4), a locking nut (5), and a positioning bolt (6). The closing mold (3) is provided with a positioning base (1) below it; The positioning base (1) is provided with a positioning bolt (6) in the center position; The lower end of the positioning bolt (6) is provided with a locking nut (5); A positioning bushing (4) is provided above the locking nut (5).

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