Auxiliary disassembling tool for inner hexagon screw

Abstract

The utility model discloses an auxiliary disassembling tool for a socket head cap screw, which belongs to the technical field of aeronautical manufacturing and maintenance, and comprises a clamping part, a rotating rod and a fastening occlusion joint which are of an integrated structure, the clamping part is matched with a pneumatic or electric tool, the rotating rod is used for clamping a wrench, the fastening occlusion joint is conical, the axial included angle of the outer edge of the fastening occlusion joint is designed to be 30-50 degrees, and the clamping part is matched with the rotating rod. A continuous reverse thread is arranged on the outer surface, after the fastening meshing connector is inserted into an inner hexagonal hole, the wrench clamped on the rotating rod is rotated while pressing acting force is applied to the clamping part, interference fit between the inner hexagonal screw and the fastening meshing connector can be achieved, and therefore the torque acting effect of the wrench on the inner hexagonal screw is improved, and the fastening meshing connector is convenient to use. And the slipping phenomenon between the auxiliary disassembling tool and the inner hexagon screw is avoided. The device is simple in structure, high in working efficiency, small in size and easy to use and operate, and meanwhile the product quality problem caused by operation deviation is reduced.

Description

A tool for disassembling internal hex screws Technical Field

[0001] This utility model belongs to the field of aviation manufacturing and maintenance technology, and relates to an auxiliary disassembly tool for internal hexagon screws. Background Technology

[0002] During aircraft maintenance, it is necessary to disassemble the hexagonal socket head cap screws installed on the aircraft. Because the hexagonal holes of these screws are relatively small, tools are frequently used for installation and removal during routine aircraft maintenance, leading to significant wear on the hexagonal holes. This can cause tools to slip out of the holes during subsequent disassembly, making disassembly difficult. Furthermore, due to the lack of specialized tools, general-purpose tools such as chisels and punches are often used to assist in disassembly. This often results in damage to surrounding parts due to inadequate protection, causing product quality issues and directly impacting the efficiency of the operators. Summary of the Invention

[0003] This utility model provides an auxiliary disassembly tool for hexagon socket screws, which can be operated and used in a relatively limited space. It has a simple structure and can be operated with the assistance of pneumatic or electric tools, resulting in high work efficiency. At the same time, it reduces product quality problems caused by operational deviations and improves the disassembly quality of products by operators.

[0004] The present invention adopts the following technical solution:

[0005] An auxiliary disassembly tool for hex socket screws is provided. The auxiliary disassembly tool is an integral structure, including a clamping part, a rotating rod, and a fastening engagement joint. The clamping part and the fastening engagement joint are located at both ends of the auxiliary disassembly tool, and the rotating rod is located in the middle.

[0006] The clamping part is rod-shaped and is used to cooperate with pneumatic or electric tools to apply a clamping force to the internal hexagon screw.

[0007] The outer surface of the rotating rod is flattened for gripping with a wrench to assist in turning the disassembly tool and disassembling the internal hex screw.

[0008] The fastening engagement joint is generally tapered with a flat head, designed for insertion into the hexagonal hole of an internal hexagonal screw. To better ensure the effectiveness of the tool and improve the engagement angle and dimensions between the auxiliary disassembly tool and the internal hexagonal screw, the axial included angle α of the outer edge of the fastening engagement joint is designed to be 30°–50°, and a continuous reverse thread is provided on the outer surface of the fastening engagement joint. After the fastening engagement joint is inserted into the internal hexagonal hole, while applying a clamping force to the clamping part, rotating the wrench held on the rotating rod can achieve an interference fit between the internal hexagonal screw and the fastening engagement joint, thereby improving the torque effect of the wrench on the internal hexagonal screw and preventing slippage between the auxiliary disassembly tool and the internal hexagonal screw.

[0009] As a preferred embodiment, the axial included angle α of the outer edge of the fastening engagement joint is 35°.

[0010] As a preferred embodiment, the outer thread of the fastening engagement joint is projected as a semicircle in a plane perpendicular to the tangent direction, and the ratio of the diameter of the semicircle to the side length of the internal hexagonal hole of the socket head cap screw is 0.1.

[0011] As a preferred embodiment, the distance between the end face of the rotating rod and the fastening engagement joint and the head plane of the fastening engagement joint is 8:1 to the side length of the hexagonal hole of the socket screw.

[0012] The beneficial effects of this utility model are as follows: This utility model adopts an integrated structure, which is simple in design and can be operated with the assistance of pneumatic or electric tools, resulting in high work efficiency. It also reduces product quality problems caused by operational deviations and improves the quality of product disassembly by operators. This utility model is small in size and easy to use. Attached Figure Description

[0013] Figure 1 is a front view of an auxiliary disassembly tool for hexagonal screws.

[0014] Figure 2 is an isometric view of an auxiliary disassembly tool for hexagonal screws.

[0015] Figure 3 is a schematic diagram of the axial included angle of the outer edge of the fastening engagement joint, where α represents the axial included angle of the outer edge of the fastening engagement joint.

[0016] Figure 4 is an axial cross-sectional view of an auxiliary disassembly tool for hexagon socket screws.

[0017] Figure 5 is a detailed cross-sectional view of a tool for disassembling internal hexagonal screws to fasten the engagement joint.

[0018] Wherein: 1-clamping part; 2-rotating rod; 3-fastening engagement joint. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below.

[0020] An auxiliary disassembly tool for hexagon socket screws is an integrated structure, including a clamping part 1, a rotating rod 2, and a fastening engagement joint 3. According to actual working needs, the clamping part 1 and the fastening engagement joint 3 are located at both ends of the auxiliary disassembly tool, and the rotating rod 2 is located in the middle of the auxiliary disassembly tool, as shown in Figures 1, 2, and 4.

[0021] The clamping part 1 is a rod with a hexagonal cross-section, used to cooperate with pneumatic tools to apply a clamping force to the internal hexagonal screw.

[0022] The outer surface of the rotating rod 2 is set as a hexagonal body, which is used for wrench clamping to cooperate with the screw turning auxiliary disassembly tool to realize the disassembly of the internal hex screw.

[0023] The fastening engagement joint 3 is generally conical with a flat head for insertion into the hexagonal hole of the socket head cap screw. To better ensure the disassembly effect of the auxiliary disassembly tool and maintain durability, the axial angle α of the outer edge of the fastening engagement joint 3 is designed to be 35° (as shown in Figure 3). A continuous reverse thread is provided on the outer surface of the fastening engagement joint 3, and the projection of the reverse thread onto the plane perpendicular to the tangent is designed as a semicircle (as shown in Figure 5). The ratio of the diameter of the semicircle to the side length of the hexagonal hole of the socket head cap screw is 0.1. Furthermore, the distance between the end face of the rotating rod 2 at the connection point with the fastening engagement joint 3 and the head plane of the fastening engagement joint 3 is 8:1 to the side length of the hexagonal hole of the socket head cap screw.

[0024] When disassembling an internal hexagonal screw using the aforementioned auxiliary disassembly tool, first insert the clamping part 1 into the pneumatic tool, then vertically insert the fastening engagement connector 3 into the hexagonal hole of the internal hexagonal screw, then clamp the wrench onto the rotating rod 2, activate the pneumatic switch to apply a clamping force to the internal hexagonal screw, and simultaneously rotate the wrench in the direction of loosening the internal hexagonal screw to loosen it. Continue rotating the wrench on this basis to complete the disassembly work.

[0025] In summary, the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tool for disassembling internal hexagonal screws, characterized in that, The auxiliary disassembly tool is an integral structure, including a clamping part (1), a rotating rod (2), and a fastening engagement joint (3). The clamping part (1) and the fastening engagement joint (3) are located at both ends of the auxiliary disassembly tool, and the rotating rod (2) is located in the middle. The clamping part (1) is rod-shaped and is used to cooperate with pneumatic or electric tools to apply a clamping force to the internal hexagon screw. The outer surface of the rotating rod (2) is flattened and is used to clamp the wrench to cooperate in turning the auxiliary disassembly tool. The fastening engagement joint (3) is generally conical, with a flat head and a continuous reverse thread on its outer surface.

2. The auxiliary disassembly tool for an internal hexagon screw according to claim 1, characterized in that, The axial angle α of the outer edge of the fastening engagement joint (3) is 30° to 50°.

3. The auxiliary disassembly tool for an internal hexagon screw according to claim 2, characterized in that, The axial angle α of the outer edge of the fastening engagement joint (3) is 35°.

4. The auxiliary disassembly tool for an internal hexagon screw according to claim 1, characterized in that, The outer thread of the fastening engagement joint (3) is projected as a semicircle in a plane perpendicular to the tangent direction, and the ratio of the diameter of the semicircle to the side length of the internal hexagonal hole of the internal hexagonal screw is 0.

1.

5. The auxiliary disassembly tool for an internal hexagon screw according to claim 1, characterized in that, The distance between the end face of the rotating rod (2) and the fastening engagement joint (3) and the head plane of the fastening engagement joint (3) is 8:1 to the side length of the internal hexagonal hole of the internal hexagonal screw.

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