Cabin door hinge support mounting hole drilling tool

Abstract

The utility model relates to a cabin door hinge support mounting hole drilling tool which comprises an airplane body, a cabin inlet is formed in the airplane body, an L-shaped frame which is concave inwards is formed on the side edge of the airplane body at the cabin inlet, an arc-shaped transition part is formed at one end of the frame, and a tool positioning plate abuts against the outer surface of the airplane body. An L-shaped side plate is formed on one side of the tool positioning plate, a circular-arc-shaped datum plate is formed at one end of the side plate, and the side plate and the datum plate abut against a frame and a transition part at a cabin entrance of the machine body respectively; the tool positioning plate is clamped and fixed on the machine body through a plurality of clamps; a plurality of positioning holes are formed in the tool positioning plate. According to the tool, the position of the cabin door hinge mounting hole can be accurately found out on a machine body, and position deviation is prevented; in addition, the drilling of the mounting hole is conveniently realized, the working time can be shortened, the workload is reduced, and the working efficiency is further improved.

Description

Technical field:

[0001] The utility model relates to the technical field of aircraft fuselage punching tooling, and more specifically to a door hinge bracket mounting hole drilling tooling. Background technology:

[0002] The aircraft door and window hinge bracket is an important device used to fix the door hinge to facilitate the subsequent installation of the passenger door. The position of the aircraft door hinge bracket directly determines the binding effect of the passenger door behind, which will directly affect the overall visual effect of the aircraft and whether it meets the process specifications. Therefore, the location of the installation hole is very important. At present, the drilling process of the door hinge bracket installation hole is complicated. There is no suitable drilling tooling, and drilling is completely dependent on the experience of the operator (the operator must be trained first). When drilling, first drill a guide hole with a diameter of 3mm at the approximate position to prevent the drill bit from jumping when drilling the installation hole and reduce the error. Then expand the guide hole to 6mm to complete the drilling. Sometimes there is still rework. The drilling operation of the door hinge installation hole is inconvenient, time-consuming, and low work efficiency, so it is necessary to design a suitable tooling to assist drilling to improve work efficiency. Utility model content:

[0003] The purpose of the utility model is to address the deficiencies of the prior art and to provide a hatch hinge bracket mounting hole drilling tool, which can accurately find the position of the hatch hinge mounting hole on the fuselage and prevent position displacement; and it is convenient to drill the mounting hole, which can shorten the working time, reduce the workload, and thus improve the work efficiency.

[0004] A drilling tool for mounting holes of a door hinge bracket comprises an aircraft fuselage, wherein a hatch entrance is provided on the fuselage, an inwardly concave L-shaped frame is formed on the side of the fuselage at the hatch entrance, an arc-shaped transition portion is formed at one end of the frame, a tool positioning plate is abutted against the outer surface of the fuselage, an L-shaped side plate is formed on one side of the tool positioning plate, an arc-shaped reference plate is formed at one end of the side plate, the side plate and the reference plate are respectively abutted against the frame and the transition portion at the hatch entrance of the fuselage; the tool positioning plate is clamped and fixed to the fuselage by a plurality of clamps; and a plurality of positioning holes are formed on the tool positioning plate.

[0005] Preferably, a reamer is formed at the positioning hole on the tooling positioning plate, and a positioning bushing is inserted and fixed in the reamer.

[0006] Preferably, the inner diameter of the positioning bushing on the tooling positioning plate is equal to the diameter of the positioning hole, and the upper and lower end surfaces of the positioning bushing are flush with the upper and lower end surfaces of the tooling positioning plate respectively.

[0007] Preferably, the lower end surface of the tooling positioning plate is formed with a plurality of concave platforms connected to the positioning holes, and a connecting plate is inserted into the concave platforms, and the connecting plate is welded and fixed to the outer wall of the positioning bushing;

[0008] Above the tooling positioning plate is a "冂"-shaped handle. At both ends of the handle, ear seats are formed and abutted against the tooling positioning plate directly above the connecting plate. Bolts are inserted into the ear seats at both ends of the handle, and the lower ends of the bolts pass through the tooling positioning plate and are screwed and fixed to the connecting plate.

[0009] Preferably, the lower end surfaces of the connecting plate and the tooling positioning plate are flush.

[0010] Preferably, the arc radius of the transition part on the fuselage is equal to the arc radius of the reference plate on the tooling positioning plate.

[0011] The beneficial effects of the present utility model are as follows:

[0012] This tooling can accurately find the positions of the hatch hinge mounting holes on the fuselage and prevent position deviation; moreover, it is convenient to drill the mounting holes, which can shorten the working time, reduce the workload, and thus improve the work efficiency. Brief Description of the Drawings:

[0013] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 is a sectional structural schematic diagram of the present utility model;

[0015] Figure 3 is a sectional schematic diagram of the present utility model provided with a positioning bushing.

[0016] In the figure: 1, fuselage; 11, frame; 12, transition part; 2, tooling positioning plate; 21, side plate; 22, reference plate; 23, positioning hole; 24, concave platform; 3, clamp; 4, positioning bushing; 5, connecting plate; 6, handle; 7, bolt. Specific Embodiments:

[0017] Embodiment: As shown in Figures 1 to 3 shown, a drilling tooling for hatch hinge bracket mounting holes includes the fuselage 1 of an aircraft. There is an access hatch on the fuselage 1. On the side of the fuselage 1 at the access hatch, an inwardly concave and L-shaped frame 11 is formed. One end of the frame 11 is formed with an arc-shaped transition part 12. A tooling positioning plate 2 is abutted against the outer surface of the fuselage 1. On one side of the tooling positioning plate 2, an L-shaped side plate 21 is formed. One end of the side plate 21 is formed with an arc-shaped reference plate 22. The side plate 21 and the reference plate 22 are respectively abutted against the frame 11 and the transition part 12 at the access hatch of the fuselage 1; the tooling positioning plate 2 is clamped and fixed to the fuselage 1 by a plurality of clamps 3; a plurality of positioning holes 23 are formed on the tooling positioning plate 2, and the positioning holes 23 are reference holes for mounting hatch hinge mounting holes at the access hatch of the fuselage 1.

[0018] A reamed hole is formed at the positioning hole 23 on the tooling positioning plate 2, and a positioning bushing 4 is inserted and fixed in the reamed hole. During the drilling process, the drill bit will inevitably wear against the positioning hole 23. When the positioning hole 23 is severely worn, it will affect the drilling accuracy. Therefore, the hole is reamed before wear, and the positioning bushing 4 is installed. When the positioning bushing 4 is worn, only the positioning bushing 4 needs to be replaced, and the tooling positioning plate 2 does not need to be scrapped.

[0019] The inner diameter of the positioning bushing 4 on the tooling positioning plate 2 is equal to the diameter of the positioning hole 23, and the upper and lower end faces of the positioning bushing 4 are flush with the upper and lower end faces of the tooling positioning plate 2 respectively.

[0020] A number of concave platforms 24 communicating with the positioning hole 23 are formed on the lower end face of the tooling positioning plate 2. A connecting plate 5 is inserted into the concave platform 24, and the connecting plate 5 is welded and fixed on the outer wall of the positioning bushing 4; the positioning bushing 4 can be fixed on the tooling positioning plate 2 based on the connecting plate 5, and the connecting plate 5 serves as the base plate of the connecting handle 6.

[0021] A "冂"-shaped handle 6 is provided above the tooling positioning plate 2. Ears are formed at both ends of the handle 6 and abut against the tooling positioning plate 2 directly above the connecting plate 5. Bolts 7 are inserted into the ears at both ends of the handle 6, and the lower ends of the bolts 7 pass through the tooling positioning plate 2 and are screwed and fixed on the connecting plate 5. The setting of the handle 6 facilitates the movement of the tooling positioning plate 2.

[0022] The lower end face of the connecting plate 5 is flush with the lower end face of the tooling positioning plate 2.

[0023] The arc radius of the transition part 12 on the fuselage 1 is equal to the arc radius of the reference plate 22 on the tooling positioning plate 2.

[0024] Working principle: The present utility model is a drilling tool for the installation hole of the cabin door hinge bracket. When the tool is used as shown in Figure 1 , the tooling positioning plate 2 is abutted against the fuselage 1, and the side plate 21 is abutted against the frame 11 of the fuselage 1 to achieve the positioning of the horizontal position; then the reference plate 22 is abutted against the transition part 12 of the fuselage 1 to achieve the positioning of the longitudinal position of the tooling positioning plate 2. Then, the tooling positioning plate 2 is clamped and fixed on the fuselage 1 by the clamp 3. At this time, when the positioning hole 23 serves as the reference hole, the drill bit quickly drills holes in the fuselage 1 through the reference hole.

[0025] The described embodiments are used to illustrate the present utility model by way of example, rather than to limit the present utility model. Any person skilled in the art can modify the described embodiments without departing from the spirit and scope of the present utility model. Therefore, the scope of the rights protected by the present utility model should be as listed in the claims of the present utility model.

Claims

1. A drilling tool for mounting holes of a door hinge bracket, comprising a fuselage (1) of an aircraft, wherein a hatch entrance is provided on the fuselage (1), a side edge of the fuselage (1) at the hatch entrance is formed with an inwardly concave and L-shaped frame (11), and one end of the frame (11) is formed with an arc-shaped transition portion (12), characterized in that: A tooling positioning plate (2) is abutted against the outer surface of the fuselage (1). An L-shaped side plate (21) is formed on one side of the tooling positioning plate (2). An arc-shaped reference plate (22) is formed at one end of the side plate (21). The side plate (21) and the reference plate (22) are respectively abutted against the frame (11) and the transition part (12) at the access hatch of the fuselage (1); the tooling positioning plate (2) is clamped and fixed on the fuselage (1) by a plurality of clamps (3); a plurality of positioning holes (23) are formed in the tooling positioning plate (2).

2. The hatch door hinge bracket mounting hole drilling tool according to claim 1, characterized in that: An enlarged hole is formed at the positioning hole (23) on the tooling positioning plate (2), and a positioning bushing (4) is inserted and fixed in the enlarged hole.

3. The hatch door hinge bracket mounting hole drilling tool according to claim 2, characterized in that: The inner diameter of the positioning bushing (4) on the tooling positioning plate (2) is equal to the diameter of the positioning hole (23), and the upper and lower end faces of the positioning bushing (4) are flush with the upper and lower end faces of the tooling positioning plate (2) respectively.

4. The hatch door hinge bracket mounting hole drilling tool according to claim 2, characterized in that: A plurality of concave platforms (24) communicating with the positioning holes (23) are formed on the lower end face of the tooling positioning plate (2). A connecting plate (5) is inserted in the concave platforms (24), and the connecting plate (5) is welded and fixed on the outer wall of the positioning bushing (4). A "冂”-shaped handle (6) is arranged above the tooling positioning plate (2). Ear seats are respectively formed at both ends of the handle (6) and abutted against the tooling positioning plate (2) directly above the connecting plate (5). Bolts (7) are inserted into the ear seats at both ends of the handle (6), and the lower ends of the bolts (7) pass through the tooling positioning plate (2) and are screwed and fixed on the connecting plate (5).

5. The hatch door hinge bracket mounting hole drilling tool according to claim 4, characterized in that: The lower end face of the connecting plate (5) is flush with the lower end face of the tooling positioning plate (2).

6. The hatch door hinge bracket mounting hole drilling tool according to claim 1, characterized in that: The arc radius of the transition part (12) on the fuselage (1) is equal to the arc radius of the reference plate (22) on the tooling positioning plate (2).

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