Adjustable supporting structure for cold extrusion joint installation and use method

Abstract

The invention provides an adjustable supporting structure for cold extrusion joint installation and a using method, and belongs to the field of aviation assembly, an inner frame and an outer frame form a frame-shaped main body structure with adjustable length and width, and the frame-shaped main body structure is fixed through a fixing pin and used for limiting a cold extrusion equipment main body inside; height-adjustable supporting legs are arranged at four corners of the lower part of the frame-shaped main body structure and are used for adjusting the angle of the cold extrusion equipment, and adjustable supporting columns are arranged at four corners of the upper part and are used for fitting the end surface of the cold extrusion equipment with the plane frame plate surface. On the premise that no extra positioning tool is added, the problem that the cold extrusion joint cannot be quickly and accurately positioned during installation is solved, the positioning error during assembly of such parts can be reduced, the accurate positioning of the parts is ensured, meanwhile, the overall dimension and height can be adjusted according to actual use requirements, the installation and positioning requirements of joints at different positions are met, and the production efficiency is improved. The practicability is high.

Description

Technical Field

[0001] The invention belongs to the field of aviation assembly and relates to an adjustable supporting structure for cold extrusion joint installation and a use method thereof. Background Art

[0002] With the increasing complexity of aircraft functions and structures, in order to meet the assembly performance of aircraft, the connection form of the fuel system must be changed from the traditional sleeve connection form to the use of cold extrusion joints for docking installation. During the installation process, the process method of cold extrusion joints puts forward higher requirements on the accuracy of the gap between the end face of the cold extrusion equipment and the aircraft frame surface, as well as the verticality of the nail sleeve on the installation tool puller and the frame surface. The traditional support structure is limited by the different shapes and sizes of each frame section of the aircraft. It is difficult to ensure the accuracy of the gap between the end face of the equipment and the aircraft frame surface, as well as the verticality of the nail sleeve on the installation tool puller and the frame surface. Therefore, it is necessary to design a support device with adjustable outer dimensions and height to ensure assembly quality. Summary of the invention

[0003] The purpose of the present invention is to provide an adjustable support structure for the installation of cold extruded joints and a method of use, so as to solve the technical problems that the gap accuracy between the end face of aircraft equipment and the aircraft frame panel surface and the verticality of the nail sleeve on the installation tool pull gun and the frame panel surface cannot meet the assembly quality. Without adding additional positioning tooling, the problem that the cold extruded joint cannot be quickly and accurately positioned during installation is solved, and the positioning error of such parts during assembly is reduced to ensure accurate positioning of the parts. At the same time, the outer dimensions and height can be adjusted according to actual use requirements to meet the installation and positioning requirements of joints in different positions, and the practicality is strong.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An adjustable support structure for installing a cold extruded joint, the adjustable support structure comprising an inner frame 1, an outer frame 2, a fixing pin 3, a support foot 4, an adjustable support column 5, a handle 6 and a support plate 7.

[0006] The internal frame 1 is a rectangular frame with a square cross-section, and two of them are provided with the same structure. The external frame 2 is a rectangular shell with a square cross-section, and two of them are provided with the same structure. The two internal frames 1 and the two external frames 2 are arranged diagonally, and the external frame 2 is fitted outside the internal frame 1 to form a frame-shaped main structure with adjustable size, which is used to frame and limit the main body of the cold extrusion equipment; a plurality of positioning holes are provided on the internal frame 1 at a certain interval, and through holes are provided at both ends of the external frame 2. After the through holes of the external frame 2 are aligned with the positioning holes of the internal frame 1 according to the required size, the fixing pins 3 are inserted to achieve connection, wherein the spacing between the positioning holes on the internal frame 1 is determined according to the adjustable length and width range.

[0007] There are 4 supporting legs 4, which are respectively fixed at the corners at the bottom of the two internal frames 1 and the two external frames 2, and are used to support the frame-shaped main structure after being put together. The supporting legs 4 can adjust the length. By adjusting the 4 supporting legs 4 to the required height, the angle of the cold extrusion equipment confined in the frame-shaped main structure can be adjusted; there are 4 adjustable support columns 5, which are respectively fixed at the corners of the upper surfaces of the two internal frames 1 and the two external frames 2. The adjustable support columns 5 are all provided with handles 6. The length of the adjustable support columns 5 is adjusted by rotating the handles 6 on the 4 adjustable support columns 5, so that the end face of the cold extrusion equipment is fitted with the aircraft frame panel surface; the top ends of the 4 adjustable support columns 5 are all rotatably matched with a support plate 7, and the support plate 7 can flexibly adjust the angle so that it fits with the supported end face, so as to increase the supporting area; the axis of the adjustable support column 5 and the supporting legs 4 is perpendicular to the surface of the frame-shaped main structure, and is also perpendicular to the movement direction of the internal frame 1 and the external frame 2 when they are adjusted.

[0008] The method for using the above-mentioned adjustable support structure for cold extrusion joint installation comprises the following steps:

[0009] Step 1, adjust the relative positions of the inner frame 1 and the outer frame 2 according to the actual size of the cold extrusion equipment, insert the fixing pin 3 to fix them after they are adjusted into place, and confine the main body of the cold extrusion equipment within the frame-shaped main structure.

[0010] Step 2: Place the adjustable support structure together with the cold extrusion equipment on the machine body structure, and adjust the heights of the four legs 4 respectively to adjust the angle of the cold extrusion equipment.

[0011] Step 3, turn the handle 6 to adjust the height of the four adjustable support columns 5 respectively, fit the end face of the cold extrusion equipment with the frame surface, and after checking that the gap between the end face of the extrusion equipment and the frame surface meets the requirements, proceed with subsequent operations.

[0012] The beneficial effects of the present invention are:

[0013] The present invention solves the problem that cold extruded joint parts cannot be quickly and accurately positioned during assembly, reduces the difficulty of positioning such parts, and improves the accuracy of the dimensions of such parts after assembly; and the structural design is reasonable, which makes it more convenient for workers to operate and ensures the assembly quality and efficiency of such parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of the adjustable support device provided in the embodiment of the patent of the present invention.

[0015] Figure 2 This is a top view of the adjustable support device provided in the embodiment of the present invention.

[0016] Figure 3This is a left view of the adjustable support device provided in the embodiment of the patent of the present invention.

[0017] Figure 4 This is an axonometric view of the adjustable support device provided in the embodiment of the patent of the present invention.

[0018] In the figure: 1-internal frame; 2-external frame; 3-fixing pin; 4-support foot; 5-adjustable support column; 6-handle; 7-pallet. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments improved or adjusted by ordinary technicians in this field based on the embodiments of the present invention belong to the protection scope of the present invention.

[0020] This embodiment provides an adjustable support structure for cold extrusion joint installation, such as Figures 1 to 4 As shown, the adjustable support structure includes an internal frame 1, an external frame 2, a fixing pin 3, a support foot 4, an adjustable support column 5, a handle 6 and a support plate 7.

[0021] The internal frame 1 is a rectangular frame with a square cross-section, and two of them are provided with the same structure. The external frame 2 is a rectangular shell with a square cross-section, and two of them are provided with the same structure. The two internal frames 1 and the two external frames 2 are arranged diagonally, and the external frame 2 is fitted outside the internal frame 1 to form a frame-shaped main structure with adjustable size, which is used to frame and limit the main body of the cold extrusion equipment; a plurality of positioning holes are provided on the internal frame 1 at a certain interval, and through holes are provided at both ends of the external frame 2. After the through holes of the external frame 2 are aligned with the positioning holes of the internal frame 1 according to the required size, the fixing pins 3 are inserted to achieve connection, wherein the spacing between the positioning holes on the internal frame 1 is determined according to the adjustable length and width range.

[0022] There are 4 legs 4, which are respectively fixed at the corners at the bottom of the two internal frames 1 and the two external frames 2, and are used to support the frame-shaped main structure after being put together. The legs 4 can adjust the length. By adjusting the 4 legs 4 to the required height, the angle of the cold extrusion equipment restricted in the frame-shaped main structure can be adjusted; there are 4 adjustable support columns 5, which are respectively fixed at the corners of the upper surfaces of the two internal frames 1 and the two external frames 2. The adjustable support columns 5 are all provided with handles 6. The adjustable support columns can be adjusted by rotating the handles 6 on the 4 adjustable support columns 5. 5, so that the end face of the cold extrusion equipment is fitted with the aircraft frame panel surface; the top ends of the four adjustable support columns 5 are rotatably matched with a support plate 7, the support plate 7 is a circular plate, and a spherical structure is provided at the bottom center of the circular plate. The top end of the adjustable support column 5 is a spherical groove, and the spherical structure at the bottom of the support plate 7 is confined in the spherical groove and rotatably matched, so that the support plate 7 can flexibly adjust the angle and fit with the supported end face, so as to increase the supporting area; the axis of the adjustable support column 5 and the support foot 4 is perpendicular to the surface of the frame-shaped main structure, and is also perpendicular to the movement direction of the internal frame 1 and the external frame 2 when they are adjusted.

[0023] The design method of the above adjustable support structure comprises the following steps:

[0024] Step 1: Preliminarily select the structural form, material, and size of the internal frame 1 and the external frame 2, and set a number of positioning holes on the internal frame 1 and the external frame 2.

[0025] Step 2: Select the size of the fixing pin 3 according to the size of the positioning hole, then fit the inner frame 1 and the outer frame 2 together, and connect them by inserting the fixing pin 3 into the positioning hole, so that the length and width of the frame-shaped main structure composed of the inner frame 1 and the outer frame 2 can be adjusted.

[0026] Step 3: Install the support legs 4 at the bottom of the frame-shaped main structure composed of the internal frame 1, the external frame 2 and the fixing pins 3, and further provide the preliminary structural form, material, size and connection information of the support legs 4 with the main structure.

[0027] Step 4: Connect four height-adjustable support columns to the upper part of the frame-shaped main structure, and preliminarily give the structural form, material, size and other information of the support columns.

[0028] Step 5: A handle 6 is provided on the adjustable support column 5 , and a connection position of the handle 6 is preliminarily determined to adjust the height of the adjustable support column 5 .

[0029] Step 6: Install the small-sized pallet 7 on the supporting column, and determine the shape, size, structure, material and other information of the small-sized pallet 7 according to the frame plates of different sizes and shapes.

[0030] Step 7: Through optimization design and calculation analysis, determine the structural form, connection form, number of components, size parameters, material parameters, etc. in steps 1 to 6, and finally complete the design of the adjustable support structure.

[0031] The method for using the above-mentioned adjustable support structure for cold extrusion joint installation comprises the following steps:

[0032] Step 1, adjust the relative positions of the inner frame 1 and the outer frame 2 according to the actual size of the cold extrusion equipment, insert the fixing pin 3 to fix them after they are adjusted into place, and confine the main body of the cold extrusion equipment within the frame-shaped main structure.

[0033] Step 2: Place the adjustable support structure together with the cold extrusion equipment on the machine body structure, and adjust the heights of the four legs 4 respectively to adjust the angle of the cold extrusion equipment.

[0034] Step 3, turn the handle 6 to adjust the height of the four adjustable support columns 5 respectively, fit the end face of the cold extrusion equipment with the frame surface, and after checking that the gap between the end face of the extrusion equipment and the frame surface meets the requirements, proceed with subsequent operations.

[0035] The above-described embodiments merely express the implementation methods of the present invention, but they should not be understood as limiting the scope of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An adjustable support structure for cold extrusion joint installation, characterized in that: The adjustable support structure comprises an internal frame (1), an external frame (2), a fixing pin (3), a support foot (4), and an adjustable support column (5); The internal frames (1) are provided with two identical structures, and the external frames (2) are provided with two identical structures. The two internal frames (1) and the two external frames (2) are arranged diagonally, and the external frames (2) are fitted outside the internal frames (1) to form a frame-shaped main structure with adjustable size, which is used to frame and limit the main body of the cold extrusion equipment; a plurality of positioning holes are provided on the internal frame (1) at a certain interval, and through holes are provided at both ends of the external frame (2). The through holes of the external frame (2) are aligned with the positioning holes of the internal frame (1) according to the required size, and then the fixing pins (3) are inserted to achieve connection; There are four supporting legs (4) respectively fixed at the corners of the bottom of the two internal frames (1) and the two external frames (2) for supporting the fitted frame-shaped main structure. The supporting legs (4) can be adjusted in length. By adjusting the four supporting legs (4) to the required height, the angle of the cold extrusion equipment restricted in the frame-shaped main structure can be adjusted. There are four adjustable support columns (5) respectively fixed at the corners of the upper surfaces of the two internal frames (1) and the two external frames (2). By adjusting the length of the adjustable support columns (5), the end surface of the cold extrusion equipment can be fitted with the aircraft frame panel surface.

2. An adjustable support structure for cold extrusion joint installation according to claim 1, characterized in that: The internal frame (1) is a right-angle frame with a square cross section, and the external frame (2) is a right-angle shell with a square cross section.

3. The adjustable support structure for cold extrusion joint installation according to claim 1, characterized in that: The spacing between the positioning holes on the internal frame (1) is determined according to the adjustable length and width range of the frame-shaped main structure.

4. The adjustable support structure for cold extrusion joint installation according to claim 1, characterized in that: The axes of the adjustable support column (5) and the support foot (4) are perpendicular to the surface of the frame-shaped main structure and are also perpendicular to the movement direction of the inner frame (1) and the outer frame (2) when they are adjusted.

5. The adjustable support structure for cold extrusion joint installation according to claim 1, characterized in that: The adjustable support column (5) is provided with a handle (6), and the length of the adjustable support column (5) can be adjusted by rotating the handle (6).

6. The adjustable support structure for cold extrusion joint installation according to claim 1, characterized in that: The top ends of the four adjustable support columns (5) are all rotatably matched with support plates (7), and the support plates (7) can flexibly adjust their angles so as to fit the supported end surfaces.

7. A method for using an adjustable support structure for cold extrusion joint installation according to any one of claims 1 to 6, characterized in that: The method of use comprises the following steps: Step 1, adjusting the relative positions of the inner frame (1) and the outer frame (2) according to the actual size of the cold extrusion equipment, inserting the fixing pin (3) to fix them after they are adjusted into place, so as to restrict the main body of the cold extrusion equipment within the frame-shaped main body structure; Step 2, placing the adjustable support structure together with the cold extrusion equipment on the machine body structure, and adjusting the heights of the four legs (4) respectively to adjust the angle of the cold extrusion equipment; Step 3: Adjust the heights of the four adjustable support columns (5) respectively, fit the end face of the cold extrusion equipment with the frame plate surface, and after checking that the gap between the end face of the extrusion equipment and the frame plate surface meets the requirements, proceed with subsequent operations.

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