Positioning tool for assisting in mounting lining plate on inner side wall of fuselage

Abstract

The utility model discloses a positioning tool used for assisting in installing a lining plate on the inner side wall of a machine body, which comprises a bottom plate used for being fixed with a seat track, the bottom plate is provided with an installation hole used for a bolt to penetrate through to fix the bottom plate on the seat track, and the bottom plate is provided with a vertical plate used for being arranged perpendicular to the seat track. The vertical plate is provided with a cambered surface with the bending radian matched with the inner side wall of the machine body, and at least three lining plate supports are distributed on the cambered surface in the extending direction of the cambered surface. The lining plate support comprises a connecting face used for being connected to the vertical plate and a positioning face used for positioning the lining plate on the inner side wall of the machine body. And a through hole for a bolt to pass through is formed in the positioning surface. According to the utility model, a plurality of lining plate brackets can be positioned on the inner side wall of the machine body at the same time.

Description

Technical Field

[0001] This utility model relates to the field of aircraft maintenance technology, specifically to a positioning tool for assisting in the installation of liner plates on the internal sidewalls of the fuselage. Background Technology

[0002] During the conversion of passenger aircraft into freighters, lining panels need to be installed on both sides of the fuselage (i.e., the main cargo hold). These panels are secured by lining panel brackets. These brackets are mounted on bulkheads, and their installation positions are determined by their relative height to the seat rails. On a passenger-to-freighter conversion, the lining panel brackets need to be positioned on over a hundred bulkheads on both sides, with approximately six brackets required in each bulkhead. Positioning each bracket in every bulkhead manually would be an extremely tedious and time-consuming task. Therefore, a tool is needed for the rapid positioning of these lining panel brackets to improve efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a positioning fixture for installing liner plates on the inner side wall of the machine body, which can simultaneously position multiple liner plate brackets on the inner side wall of the machine body.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0005] A positioning fixture for mounting liner plates on the inner sidewall of an auxiliary fuselage includes a base plate for fixing to a seat rail. The base plate has mounting holes for bolts to pass through and fix the base plate to the seat rail. The base plate also has a vertical plate for perpendicularly mounting to the seat rail. The vertical plate has an arc surface with a curvature matching the inner sidewall of the fuselage, and at least three liner plate supports are distributed along the arc surface. Since there are at least two sets of seat rails extending along the length of the fuselage, and at least two sets of mounting holes, the distance between any two sets of adjacent mounting holes is equal to the distance between any two sets of adjacent seat rails. Its function is as follows: Based on the structural characteristics of the aircraft fuselage, except for the nose and the fuselage position, the cross-section inside the fuselage has the same shape and size, that is, the curvature and length of each frame are the same. Based on the above structural characteristics, it can be known that the position of the liner bracket at the same horizontal height on each frame is the same. By setting the vertical plate, the liner bracket can be fixed on the vertical plate. In this way, no matter where the vertical plate is moved along the seat rail to, the liner bracket on the vertical plate is at the same height. Therefore, the liner bracket can be quickly positioned, thereby effectively improving the work efficiency of liner installation. Through the setting of the curved surface and the liner bracket, the liner bracket can be tightly attached to the inner side wall of the fuselage.

[0006] Furthermore, the liner bracket includes a connecting surface for connecting to the vertical plate and a positioning surface for positioning the liner on the inner side wall of the machine body. The connecting surface is welded to the vertical plate.

[0007] Furthermore, the positioning surface is provided with through holes for bolts to pass through. The function of these through holes is to allow the liner to be temporarily positioned on the inner side wall of the machine body using bolts. Once the liner is installed on the inner side wall of the machine body, the bolts in the through holes can be removed.

[0008] Furthermore, the connecting surface is arranged parallel to the vertical plate, and the positioning surface is arranged perpendicular to the connecting surface. Its function is to ensure that, through the spatial relationship between the connecting surface, the positioning surface, and the vertical plate, each positioning surface is nearly parallel to the adjacent inner wall of the machine body.

[0009] Furthermore, the liner support has six parts.

[0010] Furthermore, the vertical plate is provided with at least two reinforcing transverse ribs arranged parallel to the bottom plate. The function of these ribs is to enhance the structural strength of the vertical plate in the horizontal direction.

[0011] Furthermore, the vertical plate is provided with at least two reinforcing vertical ribs that are perpendicular to the base plate. The function of these ribs is to enhance the structural strength of the vertical plate in the vertical direction.

[0012] Furthermore, the vertical plate is provided with at least one reinforcing diagonal rib near the curved surface. Its function is to enhance the structural strength of the vertical plate near the curved surface by providing the reinforcing diagonal rib.

[0013] Furthermore, the vertical plate has a vertical surface perpendicular to the base plate, and the vertical surface and the curved surface are located in the same plane. Side plates are provided on the vertical surface, perpendicular to both the vertical plate and the base plate. The function of these side plates is to enhance the structural strength of the edges of the vertical plate.

[0014] Furthermore, the vertical plate is perforated with at least four weight-reducing holes. These holes reduce the weight of the vertical plate, facilitating its movement on the seat rail.

[0015] The beneficial effects of this utility model are:

[0016] 1. Based on the structural characteristics of the aircraft fuselage, apart from the nose and fuselage positions, the cross-sections inside the fuselage are all the same shape and size. That is, the curvature and length of each frame are consistent. Based on the above structural characteristics, it can be known that the position of the liner bracket at the same horizontal height is consistent on each frame. By setting the vertical plate, the liner bracket can be fixed on the vertical plate. In this way, no matter where the vertical plate is moved along the seat rail to, the liner bracket on the vertical plate will be at the same height. Therefore, the liner bracket can be quickly positioned, thereby effectively improving the work efficiency of liner installation. Through the setting of the curved surface and the liner bracket, the liner bracket can be tightly attached to the inner side wall of the fuselage. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of Example 1 with the front facing forward;

[0018] Figure 2 This is a schematic diagram of the structure with the back side facing forward in Example 1.

[0019] Reference numerals: 1. Base plate; 2. Mounting hole; 3. Vertical plate; 4. Curved surface; 5. Liner bracket; 6. Connecting surface; 7. Positioning surface; 8. Through hole; 9. Reinforcing horizontal rib; 10. Reinforcing vertical rib; 11. Reinforcing diagonal rib; 12. Side plate; 13. Weight reduction hole. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0021] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1

[0024] A positioning fixture for assisting in the installation of liner plates on the inner sidewalls of the fuselage, such as Figure 1 As shown, the system includes a base plate 1 for fixing to the seat rails. The base plate 1 has mounting holes 2 for bolts to pass through and fix the base plate 1 to the seat rails. The base plate 1 also has a vertical plate 3 for perpendicularly positioning to the seat rails. The vertical plate 3 has an arc surface 4 with a curvature matching the inner wall of the machine body. At least three liner brackets 5 are distributed along the extension direction of the arc surface 4. Since there are at least two sets of seat rails extending along the length of the machine body, and at least two sets of mounting holes 2 are provided, the distance between any two sets of adjacent mounting holes 2 is equal to the distance between any two sets of adjacent seat rails. Its function is as follows: According to the structural characteristics of the aircraft fuselage, apart from the nose and the fuselage position, the cross-section inside the fuselage is the same shape and size, that is, the curvature and length of each frame are the same. Based on the above structural characteristics, it can be known that the position of the liner bracket 5 at the same horizontal height is the same on each frame. Through the setting of the vertical plate 3, the liner bracket 5 can be fixed on the vertical plate 3. In this way, no matter where the vertical plate 3 moves along the seat rail to any position inside the fuselage, the liner bracket 5 on the vertical plate 3 is at the same height. Therefore, the liner bracket 5 can be quickly positioned, thereby effectively improving the work efficiency of liner installation. Through the setting of the arc surface 4 and the liner bracket 5, the liner bracket 5 can be tightly attached to the inner side wall of the fuselage.

[0025] Specifically, such as Figure 1 As shown, the liner bracket 5 includes a connecting surface 6 for connecting to the vertical plate 3 and a positioning surface 7 for positioning the liner on the inner side wall of the machine body. The connecting surface 6 is welded to the vertical plate 3.

[0026] Specifically, such as Figure 1 As shown, the positioning surface 7 is provided with through holes 8 for bolts to pass through. Its function is that, through the through holes 8, the liner can be temporarily positioned on the inner side wall of the machine body with bolts. After the liner is installed on the inner side wall of the machine body, the bolts on the through holes 8 can be removed.

[0027] Specifically, such as Figure 1As shown, the connecting surface 6 is arranged parallel to the vertical plate 3, and the positioning surface 7 is arranged perpendicular to the connecting surface 6. Its function is to ensure that each positioning surface 7 can be arranged nearly parallel to the adjacent inner wall of the fuselage through the spatial relationship between the connecting surface 6, the positioning surface 7, and the vertical plate 3.

[0028] Specifically, such as Figure 1 As shown, the liner bracket 5 has six members.

[0029] Specifically, such as Figure 1 As shown, the vertical plate 3 is provided with at least two reinforcing horizontal ribs 9 arranged parallel to the bottom plate 1. Their function is to enhance the structural strength of the vertical plate 3 in the horizontal direction by providing the reinforcing horizontal ribs 9.

[0030] Specifically, such as Figure 2 As shown, the vertical plate 3 is provided with at least two reinforcing vertical ribs 10 arranged perpendicularly to the base plate 1. Their function is to enhance the structural strength of the vertical plate 3 in the vertical direction by providing the reinforcing vertical ribs 10.

[0031] Specifically, such as Figure 2 As shown, at least one reinforcing diagonal rib 11 is provided on the vertical plate 3 near the arc surface 4. Its function is to enhance the structural strength of the vertical plate 3 near the arc surface 4 by providing the reinforcing diagonal rib 11.

[0032] Specifically, such as Figure 1 As shown, the vertical plate 3 has a vertical surface perpendicular to the base plate 1, and the vertical surface and the arc surface 4 are located in the same plane. The vertical surface has a side plate 12 that is perpendicular to both the vertical plate 3 and the base plate 1. The function of the side plate 12 is to enhance the structural strength of the edge of the vertical plate 3.

[0033] Specifically, such as Figure 1 As shown, the vertical plate 3 has at least four weight-reducing holes 13. The purpose of these holes is to reduce the weight of the vertical plate 3, making it easier to move the vertical plate 3 on the seat track.

[0034] The working principle of this embodiment is explained as follows: First, the base plate 1 is installed on the two seat rails, so that the vertical plate 3 is perpendicular to the length direction of the machine body. Then, the vertical plate 3 is moved along the length direction of the seat rails, so that the vertical plate 3 moves to the corresponding partition inside the machine body, so that the 6 liner brackets 5 on the vertical plate 3 correspond to the partition, so that the liner brackets 5 press the liner at the partition, which is convenient for installing the liner.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A positioning fixture for installing a liner plate on the inner side wall of an auxiliary fuselage, characterized in that: Includes a base plate (1) for fixing to the seat rail, the base plate (1) has mounting holes (2) for bolts to pass through to fix the base plate (1) to the seat rail, the base plate (1) has a vertical plate (3) for being set perpendicular to the seat rail, the vertical plate (3) has an arc surface (4) with a curvature matching the inner side wall of the body, and at least three liner brackets (5) are distributed along the extension direction of the arc surface (4).

2. The positioning fixture for installing a liner plate on the inner side wall of an auxiliary fuselage according to claim 1, characterized in that: The liner bracket (5) includes a connecting surface (6) for connecting to the vertical plate (3) and a positioning surface (7) for positioning the liner on the inner side wall of the machine body.

3. A positioning fixture for installing a liner plate on the inner side wall of an auxiliary fuselage according to claim 2, characterized in that: The positioning surface (7) is provided with a through hole (8) for bolts to pass through.

4. A positioning fixture for installing a liner plate on the inner side wall of an auxiliary fuselage according to claim 2, characterized in that: The connecting surface (6) is set parallel to the vertical plate (3), and the positioning surface (7) is set perpendicular to the connecting surface (6).

5. A positioning fixture for installing a liner plate on the inner side wall of an auxiliary fuselage according to claim 1, characterized in that: The liner support (5) has six parts.

6. A positioning fixture for installing a liner plate on the inner side wall of an auxiliary fuselage according to claim 1, characterized in that: The vertical plate (3) is provided with at least two reinforcing horizontal ribs (9) that are parallel to the bottom plate (1).

7. A positioning fixture for mounting a liner on the inner side wall of an auxiliary fuselage according to claim 1, characterized in that: The vertical plate (3) is provided with at least two reinforcing vertical ribs (10) that are perpendicular to the bottom plate (1).

8. A positioning fixture for installing a liner plate on the inner side wall of an auxiliary fuselage according to claim 1, characterized in that: The vertical plate (3) is provided with at least one reinforcing diagonal rib (11) near the arc surface (4).

9. A positioning fixture for installing a liner plate on the inner side wall of an auxiliary fuselage according to claim 1, characterized in that: The vertical plate (3) has a vertical surface that is perpendicular to the bottom plate (1). The vertical surface and the arc surface (4) are located in the same plane. The vertical surface has a side plate (12) that is perpendicular to both the vertical plate (3) and the bottom plate (1).

10. A positioning fixture for mounting a liner on the inner side wall of an auxiliary fuselage according to claim 1, characterized in that: The vertical plate (3) is provided with at least four weight-reducing holes (13).

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