Portable punching device for rubber mat for aircraft covering cap

Abstract

The utility model discloses a portable punching device for a rubber mat for an airplane covering cap, which comprises a rotating handle, a lead screw, a circular rotating tool bit, a fixed shaft, a clamp body, a first handle, a second handle and a connecting rotating shaft, the front end of the first handle and the front end of the second handle are respectively and correspondingly provided with a clamp body. One end of the lead screw penetrates through the pincer body at the front end of the second handle and is connected with the circular rotary tool bit, the other end of the lead screw is vertically connected with the rotary handle, and the lead screw is in threaded connection with the pincer body at the front end of the second handle; a fixing shaft is fixedly arranged on the face, close to the circular rotary tool bit, of the clamp body at the front end of the first handle and used for penetrating through a hole of a lining in a covering cap bolt hole for positioning. The rubber mat punching positioning device can enable punching positioning of a rubber mat to be accurate, can control and guarantee punching perpendicularity and depth, has the advantages of being easy to operate and convenient to carry, and has good practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of punching holes in rubber pads for aircraft hatches, and in particular relates to a portable punching device for rubber pads for aircraft hatches. Background Art

[0002] Skin gaskets are thin, low-hardness, and adhesive-backed expanded polytetrafluoroethylene waterproof sealing materials applied to the inner surface of aircraft flaps. They are used to provide oil or water resistance between the skin and the fuselage structure. However, due to the small double-thread bolts on the flaps, the gaskets cannot be applied evenly. Holes must be cut into the gasket to match the bolts to ensure a proper fit.

[0003] During the installation of the rubber pads for aircraft flaps, if traditional manual tools are used, it will be difficult to punch holes when the rubber pads are attached to the flaps. There is no depth limiter during punching, which can easily cause the risk of scratching the flaps. The punching process is time-consuming and has poor positioning accuracy. For example, when using ordinary cutting tools to drill holes in the rubber pads, it is impossible to control the feed depth of the tool. If the feed is too deep, it is easy to scratch the inner surface of the aircraft skin. If the feed is insufficient, the rubber pads cannot be cut off to drill holes. In addition, ordinary cutting tools cannot guarantee their uniform size and verticality requirements, and cannot cut holes perpendicular to the skin. In summary, ordinary cutting tools cannot meet the requirements for punching holes in rubber pads. Repeated cutting will affect the accuracy and appearance, resulting in low efficiency and poor quality.

[0004] Therefore, the utility model discloses a portable punching device for a rubber pad for an aircraft flap, which enables accurate positioning of the punched holes in the rubber pad, can control the verticality and depth thereof, is easy to operate, easy to carry, and highly reliable. Utility Model Content

[0005] The purpose of the utility model is to provide a portable punching device for a rubber pad for an aircraft flap, aiming to solve the above-mentioned problem.

[0006] The utility model is mainly realized through the following technical solutions:

[0007] A portable punching device for rubber pads for aircraft flaps, comprising a rotating handle, a screw, a circular rotating cutter head, a fixed shaft, a pliers body, a first handle, a second handle and a connecting rotating shaft, wherein the middle portions of the first handle and the second handle are rotatably connected via the connecting rotating shaft, and the front ends of the first handle and the second handle are respectively provided with pliers bodies; one end of the screw passes through the pliers body at the front end of the second handle along the Y direction and is connected to the circular rotating cutter head, and the other end of the screw is vertically connected to the rotating handle, and the screw is threadedly connected to the pliers body at the front end of the second handle; a fixed shaft is fixedly provided on a side of the pliers body at the front end of the first handle close to the circular rotating cutter head, which is used to pass through the hole of the bushing inside the flap bolt hole for positioning.

[0008] In order to better implement the present invention, further, a through threaded hole is opened on the top of the pliers body at the front end of the second handle, the screw is threadedly connected to the threaded hole, and a mounting hole is opened at the second end of the screw along the X direction corresponding to the rotating handle.

[0009] In order to better realize the present invention, further, one end of the lead screw is threadedly connected to the circular rotary cutter head, and the thread rotation direction of the lead screw and the circular rotary cutter head is opposite to the thread rotation direction of the lead screw and the threaded hole.

[0010] In order to better realize the present invention, further, the outer diameter of the inner bushing of the bolt hole of the cover is R1, the blade diameter of the circular rotary cutter head is R, and R=R1+0.6mm.

[0011] In order to better realize the present utility model, further, the rotating handle, the lead screw, the fixed shaft and the connecting shaft are respectively made of metal.

[0012] In order to better realize the present utility model, further, the circular rotary cutter head, the pliers body, the first handle and the second handle are respectively made of stainless steel.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model comprises a first handle, a second handle and two pliers to form a vise jaw, which is convenient for carrying and for clamping the hole to be punched. Furthermore, the bolt hole of the cover is precisely positioned by a fixed shaft, and then the circular rotating cutter head is driven by the rotating handle to cut and punch the rubber pad. The utility model can accurately position the hole of the rubber pad and can control and ensure the verticality and depth of the hole. It has the advantages of simple operation and convenient carrying, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a portable punching device for a rubber pad for an aircraft flap according to the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the punching device positioned and fixed when the rubber pad is not attached;

[0017] Figure 3 This is a schematic diagram of the punching operation of the utility model;

[0018] Figure 4 Schematic diagram of the screw rotation operation.

[0019] Among them: 1-rotating handle, 2-screw, 3-circular rotating cutter head, 4-fixed shaft, 5-clamp body, 6-first handle, 7-connecting shaft. DETAILED DESCRIPTION

[0020] Example 1:

[0021] A portable punching device for rubber pads used in aircraft flaps, such as Figure 1-Figure 4 As shown, it includes a rotating handle 1, a screw 2, a circular rotating cutter head 3, a fixed shaft 4, a pliers body 5, a first handle 6, a second handle and a connecting shaft 7.

[0022] The rotating handle 1 is connected to the screw 2 through a mounting hole. The screw 2 is installed on the top of one of the pliers bodies 5, and the lower end of the screw 2 passes through the pliers body 5 to connect to the circular rotary cutter head 3. The screw 2 can be driven by the rotating handle 1 to adjust the longitudinal movement of the circular rotary cutter head 3, and the amount of movement is limited by the length of the thread. The fixed shaft 4 is fixed to the inner surface of the other pliers body 5, and the position of the punching device is fixed by the fixed shaft 4 to achieve precise positioning and punching. Preferably, the circular rotary cutter head 3 is fixed to the screw 2 by a thread and can be replaced. The upper part of the pliers body 5 is connected to the screw 2 through a threaded hole, and rotating the screw 2 can achieve longitudinal movement.

[0023] The middle parts of the first handle 6 and the second handle are hinged by a connecting shaft 7, and the front ends of the first handle 6 and the second handle are respectively provided with a pliers body 5. The operator can control the opening and clamping of the two pliers bodies 5 through the first handle 6 and the second handle.

[0024] The utility model comprises the following steps when punching:

[0025] Stage 1: Laying the rubber pad:

[0026] Since the expanded polytetrafluoroethylene waterproof sealing material is a spare part, the adhesive backing must be torn off and spread flat to the outer edge of the cover before use. The installation tolerance of the outer contour of the rubber pad is required to be 0~-2.0mm, and it must be pressed flat.

[0027] Phase 2: Select the tool specifications for the rubber pad punching device:

[0028] The blade diameter of the circular rotary cutter head 3 is R; the outer diameter of the bushing inside the bolt hole of the cover is R1, and the inner diameter is R2, so R=R1+0.6mm.

[0029] The third stage: Figure 2 As shown, the adjacent pliers 5 are in an open state, the circular rotary cutter head 3 is kept in a retracted state, the portable punching device is placed on the bushing to be punched, and the fixed shaft 4 is passed through the center of the bushing for positioning.

[0030] Stage 4: If Figure 3 and Figure 4As shown, after placing the portable punching device at the position where the hole needs to be punched, press the first handle 6 and the second handle to make the adjacent pliers 5 at the front end vertically clamp the rubber pad, and then, by rotating the handle 1, rotate the screw 2 to drive the circular rotating cutter head 3 to rotate and move downward to complete the rubber pad cutting.

[0031] The utility model comprises a first handle 6, a second handle, and two pliers 5, forming a vise jaw that is convenient for portability and for clamping the hole to be punched. Furthermore, a fixed shaft 4 is used to precisely position the bolt hole in the cover. Rotating the handle 1 then drives the lead screw 2, which in turn drives the circular rotating cutter head 3 to cut and punch the rubber pad. This utility model allows for precise positioning of the rubber pad hole, ensuring the verticality and depth of the hole, and is easy to operate, portable, and practical.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention falls within the scope of protection of the present invention.

Claims

1. A portable punching device for a rubber pad for an aircraft flap, characterized in that: The invention comprises a rotating handle (1), a screw (2), a circular rotating cutter head (3), a fixed shaft (4), a pliers body (5), a first handle (6), a second handle and a connecting shaft (7), wherein the middle parts of the first handle (6) and the second handle are rotatably connected via the connecting shaft (7), and the front ends of the first handle (6) and the second handle are respectively provided with pliers bodies (5); one end of the screw (2) passes through the pliers body (5) at the front end of the second handle along the Y direction and is connected to the circular rotating cutter head (3), and the other end of the screw (2) is vertically connected to the rotating handle (1), and the screw (2) is threadedly connected to the pliers body (5) at the front end of the second handle; a fixed shaft (4) is fixedly provided on a side of the pliers body (5) at the front end of the first handle (6) close to the circular rotating cutter head (3), and is used to pass through the hole of the bushing inside the bolt hole of the cover for positioning.

2. The portable punching device for a rubber pad for an aircraft flap according to claim 1, characterized in that: A threaded hole is provided on the top of the pliers body (5) at the front end of the second handle, the lead screw (2) is threadedly connected to the threaded hole, and a mounting hole is provided at the second end of the lead screw (2) along the X direction corresponding to the rotating handle (1).

3. The portable punching device for the rubber pad for aircraft flap according to claim 2, characterized in that: One end of the lead screw (2) is threadedly connected to the circular rotary cutter head (3), and the thread rotation direction of the lead screw (2) and the circular rotary cutter head (3) is opposite to the thread rotation direction of the lead screw (2) and the threaded hole.

4. The portable punching device for a rubber pad for an aircraft flap according to claim 1, characterized in that: The outer diameter of the inner bushing of the bolt hole of the cover is R1, the blade diameter of the circular rotary cutter head (3) is R, and R=R1+0.6mm.

5. The portable punching device for a rubber pad for an aircraft flap according to claim 1, characterized in that: The rotating handle (1), the lead screw (2), the fixed shaft (4) and the connecting shaft (7) are respectively made of metal.

6. The portable punching device for a rubber pad for an aircraft flap according to claim 1, characterized in that: The circular rotary cutter head (3), the pliers body (5), the first handle (6) and the second handle are respectively made of stainless steel.

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