A nacelle support positioning tool

Abstract

The utility model provides a kind of hanger pod support positioning tool, including fixed tailstock, fixed tailstock is used to and has been installed one frame support fixedly connected, the central part of fixed tailstock is processed with center hole, fixed column is positioned and installed in the inside of center hole, the outside center of fixed column is fixed with locating strut, first locating block, second locating block and third locating block are positioned and installed in sequence on locating strut, the bottom end of first locating block is fixedly installed the frame support to be installed of second number by first L type connecting seat, the bottom end of second locating block is fixedly installed the frame support to be installed of third number by second L type connecting seat, the bottom end of third locating block is fixedly installed the frame support to be installed of fourth number by third L type connecting seat.This positioning tool can be used to complete the positioning installation of hanger pod support in shell narrow space, and this tool is benchmarked by the shell one frame support that has been installed, then the positioning of second frame, third frame and fourth frame support is carried out, and finally the auxiliary installation of remaining support is completed.

Description

Technical Field

[0001] This utility model relates to the field of aviation equipment manufacturing, and in particular to a pod support positioning fixture. Background Technology

[0002] When installing fuel lines inside the shell of a certain type of aircraft pod, after the first frame bracket of the shell is fixedly installed, the remaining second, third, and fourth frame brackets need to be installed using the first frame bracket as a positioning reference. This is to ensure that the installation position, height, and hole positions of all remaining brackets meet the requirements. Otherwise, deviations in the hole positions of internal components and skewing will occur, leading to rework and repair of the shell. In order to ensure the installation accuracy of structural components and to perform positioning and installation in the narrow space inside the shell, it is necessary to design corresponding tooling to assist in completing the installation operation. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a pod support positioning fixture. This positioning fixture can be used to complete the positioning and installation of the pod support in a narrow space of the shell. This fixture uses the already installed shell No. 1 frame support as a reference to position the No. 2, No. 3 and No. 4 frame supports, and finally completes the auxiliary installation of the remaining supports.

[0004] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: A pod support positioning fixture includes a fixed tail seat, which is used to fix and connect with the installed No. 1 frame support. A central hole is machined in the center of the fixed tail seat, and a fixed column is positioned and installed inside the central hole. A positioning support rod is fixed to the center of the outer side of the fixed column. A first positioning block, a second positioning block, and a third positioning block are sequentially positioned and installed on the positioning support rod. The bottom end of the first positioning block is fixedly installed with the No. 2 frame support to be installed through a first L-shaped connecting seat. The bottom end of the second positioning block is fixedly installed with the No. 3 frame support to be installed through a second L-shaped connecting seat. The bottom end of the third positioning block is fixedly installed with the No. 4 frame support to be installed through a third L-shaped connecting seat.

[0005] Preferably, the fixed tailstock is provided with a side plate on its side, and auxiliary positioning holes are machined on the side plate.

[0006] Preferably, the fixed column and the fixed tailstock are fixedly connected by a first positioning pin.

[0007] Preferably, the fixing column and the positioning support rod adopt an integrated structure and are made of aluminum alloy material.

[0008] Preferably, the first positioning block is connected to the positioning support rod by a second positioning pin.

[0009] Preferably, the second positioning block is connected to the positioning support rod by a third positioning pin.

[0010] Preferably, the third positioning block is connected to the positioning support rod by a fourth positioning pin.

[0011] Preferably, bolt mounting holes are machined on the first L-shaped connector, the second L-shaped connector, and the third L-shaped connector.

[0012] The present invention has the following beneficial effects: 1. The positioning fixture of this utility model can be used to complete the positioning and installation of the pod bracket in the narrow space of the shell. This fixture uses the already installed No. 1 frame bracket of the shell as a reference to position the No. 2, No. 3 and No. 4 frame brackets, and finally completes the auxiliary installation of the remaining brackets.

[0013] 2. The aforementioned side plates and auxiliary positioning holes enhance the fixing reliability between the fixed tailstock and the No. 1 frame bracket, and ensure the phase requirements of its installation.

[0014] 3. The first positioning pin described above enables reliable fixed installation between the fixed column and the fixed tailstock.

[0015] 4. By adopting an integrated structure, the processing is simplified. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a first-person perspective 3D view of the present invention.

[0018] Figure 2 This is a two-dimensional view of the present invention from a second perspective.

[0019] Figure 3 This is a three-dimensional view of the present invention from a third perspective.

[0020] Figure 4 This is the front view of the present utility model.

[0021] Figure 5 This utility model Figure 4 AA view.

[0022] Figure 6 This is a side view of the present invention.

[0023] Figure 7 This utility model Figure 6 BB view.

[0024] In the diagram: 1. Side plate; 2. Fixed tailstock; 3. Frame 1 bracket; 4. Auxiliary positioning hole; 5. Center hole; 6. Fixed column; 7. First positioning pin; 8. First positioning block; 9. Second positioning pin; 10. Positioning support rod; 11. First L-shaped connecting seat; 12. Frame 2 bracket; 13. Second positioning block; 14. Third positioning pin; 15. Second L-shaped connecting seat; 16. Frame 3 bracket; 17. Third positioning block; 18. Fourth positioning pin; 19. Third L-shaped connecting seat; 20. Frame 4 bracket; 21. Bolt mounting hole. Detailed Implementation

[0025] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0026] See Figure 1-7 A pod support positioning fixture includes a fixed tailstock 2, which is fixedly connected to an already installed first frame support 3. A central hole 5 is machined in the center of the fixed tailstock 2, and a fixed post 6 is positioned inside the central hole 5. A positioning support rod 10 is fixed to the center of the outer side of the fixed post 6. A first positioning block 8, a second positioning block 13, and a third positioning block 17 are sequentially positioned on the positioning support rod 10. The bottom end of the first positioning block 8 is fixedly mounted to the second frame support 12 to be installed via a first L-shaped connecting seat 11. The bottom end of the second positioning block 13 is fixedly mounted to the third frame support 16 to be installed via a second L-shaped connecting seat 15. The bottom end of the third positioning block 17 is fixedly mounted to the fourth frame support 20 to be installed via a third L-shaped connecting seat 19. This positioning fixture can be used to position and install pod supports in confined spaces within the shell. Using the already installed first frame support as a reference, this fixture positions the second, third, and fourth frame supports, and ultimately completes the auxiliary installation of the remaining supports. When it is necessary to fix the pod support, first fix the first frame support 3, then fix the fixed tail seat 2 on the first frame support 3, and install the positioning support rod 10 on the fixed tail seat 2. Then, install the first positioning block 8, the second positioning block 13 and the third positioning block 17 with the first frame support 3 as the positioning reference. Finally, install the second frame support 12, the third frame support 16 and the fourth frame support 20 on the corresponding first positioning block 8, the second positioning block 13 and the third positioning block 17.

[0027] Furthermore, a side plate 1 is provided on the side of the fixed tailstock 2, and an auxiliary positioning hole 4 is machined on the side plate 1. The side plate 1 and the auxiliary positioning hole 4 enhance the fixing reliability between the fixed tailstock 2 and the first frame bracket 3, and ensure the phase requirements of its installation.

[0028] Furthermore, the fixing post 6 and the fixing tailstock 2 are fixedly connected by a first positioning pin 7. The first positioning pin 7 enables reliable fixed installation between the fixing post 6 and the fixing tailstock 2.

[0029] Furthermore, the fixed column 6 and the positioning support rod 10 adopt an integrated structure and are made of aluminum alloy. By adopting an integrated structure, the manufacturing process is simplified.

[0030] Furthermore, the first positioning block 8 is connected to the positioning support rod 10 by a second positioning pin 9. The second positioning pin 9 enables reliable positioning and installation of the first positioning block 8, thereby facilitating the subsequent reliable positioning of the second frame bracket 12.

[0031] Furthermore, the second positioning block 13 is connected to the positioning support rod 10 by a third positioning pin 14. The third positioning pin 14 enables reliable positioning and installation of the second positioning block 13, thereby facilitating the subsequent reliable positioning of the third frame bracket 16.

[0032] Furthermore, the third positioning block 17 is connected to the positioning support rod 10 by a fourth positioning pin 18. The fourth positioning pin 18 enables reliable positioning and installation of the third positioning block 17, thereby facilitating the subsequent reliable positioning of the fourth frame bracket 20.

[0033] Furthermore, bolt mounting holes 21 are machined on the first L-shaped connecting seat 11, the second L-shaped connecting seat 15, and the third L-shaped connecting seat 19. The bolt mounting holes 21 facilitate the subsequent reliable fixing and installation of the second frame bracket 12, the third frame bracket 16, and the fourth frame bracket 20.

[0034] The working process and principle of this utility model: In practical use, to reduce the overall weight of the fixture, the positioning fixture is mainly made of 7050 aluminum alloy, while the positioning pins are made of 30CrMnSiA structural steel to prevent the aluminum alloy from sticking and locking. During use, first connect and fix the fixed tailstock 2 to the first frame bracket 3, then fix the fixed column 6 and positioning support rod 10 to the fixed tailstock 2 using the first positioning pin 7. Next, slide the first positioning block 8, the second positioning block 13, and the third positioning block 17 onto the positioning support rod 10 to the designated positions, and then lock them in place using the positioning pins. The positions of the first positioning block 8, the second positioning block 13, and the third positioning block 17 are then determined. The spatial relative positions of the second frame bracket 12, the third frame bracket 16, and the fourth frame bracket 20 are determined. Based on the bolt mounting holes on the first L-shaped connecting seat 11, the second L-shaped connecting seat 15, and the third L-shaped connecting seat 19, mounting holes for the internal pipelines of the pod are drilled on the bracket. This tooling serves a positioning function in the early stage. After the overall riveting is completed, in order to check the overall riveting deformation, the first positioning block 8, the second positioning block 13, and the third positioning block 17 are removed. The positioning support rod 10 is inserted into the turbine pump hole of the first frame bracket 3. Then, the positioning seats are fixed in each position to check whether the shell riveting meets the requirements.

Claims

1. A nacelle bracket positioning tool, characterized in that, Includes a fixed tailstock (2), which is used to fix and connect with the installed first frame bracket (3). The center of the fixed tailstock (2) has a center hole (5). A fixed column (6) is installed inside the center hole (5). A positioning support rod (10) is fixed on the center of the outside of the fixed column (6). A first positioning block (8), a second positioning block (13) and a third positioning block (17) are installed on the positioning support rod (10) in sequence. The bottom end of the first positioning block (8) is fixed to the second frame bracket (12) to be installed through the first L-shaped connecting seat (11). The bottom end of the second positioning block (13) is fixed to the third frame bracket (16) to be installed through the second L-shaped connecting seat (15). The bottom end of the third positioning block (17) is fixed to the fourth frame bracket (20) to be installed through the third L-shaped connecting seat (19).

2. The pod support positioning fixture according to claim 1, characterized in that: The fixed tailstock (2) is provided with a side plate (1) on its side, and an auxiliary positioning hole (4) is machined on the side plate (1).

3. The pod support positioning fixture according to claim 1, characterized in that: The fixed column (6) and the fixed tailstock (2) are fixedly connected by the first positioning pin (7).

4. The pod support positioning fixture according to claim 1, characterized in that: The fixed column (6) and the positioning support rod (10) adopt an integrated structure and are made of aluminum alloy material.

5. The pod support positioning fixture according to claim 1, characterized in that: The first positioning block (8) is connected to the positioning support rod (10) by the second positioning pin (9).

6. The pod support positioning fixture according to claim 1, characterized in that: The second positioning block (13) is connected to the positioning support rod (10) by the third positioning pin (14).

7. The pod support positioning fixture according to claim 1, characterized in that: The third positioning block (17) is connected to the positioning support rod (10) by the fourth positioning pin (18).

8. The pod support positioning fixture according to claim 1, characterized in that: Bolt mounting holes (21) are machined on the first L-shaped connector (11), the second L-shaped connector (15) and the third L-shaped connector (19).

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