Pull-out device for installing high-locking bolt in closed area of airplane

Abstract

The utility model relates to the technical field of aircraft assembly, in particular to a drawing device for installing a high-locking bolt in an aircraft closed area. The device comprises an acting head and an extension rod, the lower end of the acting head is provided with an internal thread, the internal thread is matched with an external thread on a high-lock bolt to be assembled, and the upper end of the acting head is connected with the end of the extension rod. The acting head is in a short cylinder shape, internal threads are arranged at the lower end of the acting head and matched with external threads on the high-locking bolt, and an inner square hole is formed in the upper end of the acting head. The extension rod is in a long cylinder shape, the lower end is provided with an outer square head used for being matched with an inner square hole in the acting head, and the upper end is fixedly connected with a pneumatic or electric tool. By the aid of the device, the problem that the high-locking bolt cannot be mounted by knocking or impacting the head of the high-locking bolt in a narrow closed space on an airplane can be solved, the labor intensity of field workers is relieved, the labor efficiency is improved, and the technical problem in the production process is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of aircraft assembly, and particularly relates to a high-lock bolt installation and pulling device for closed areas of aircraft. Background Technique

[0002] In the field of large aircraft assembly, there is a large demand for the installation of high-lock bolts. Since high-lock bolts are interference-fit connecting fasteners, it is necessary to tap or impact the bolt head to make the fastener in place in the workpiece hole. However, for the bottom of a certain large amphibious aircraft, the installation position of the high-lock bolt is a semi-closed narrow space, and there is only 25 mm of space for the bolt head, making it impossible to implement the traditional installation method of tapping or impacting the bolt head. Therefore, it is necessary to find a new installation method to solve this technical bottleneck in the actual production process. At the same time, there are many specifications of high-lock bolts on the aircraft, and the commonly used types are HST10AG5, HST10AG6, HST10AG8, etc. It is necessary to design a set of general tools to meet the installation requirements of high-lock bolts of different specifications. Content of the Utility Model

[0003] In order to solve the above problems existing in the prior art, the utility model provides a high-lock bolt installation and pulling device for closed areas of aircraft.

[0004] The utility model adopts the following technical scheme:

[0005] A high-lock bolt installation and pulling device for closed areas of aircraft mainly comprises two parts: a working head and an extension rod; the lower end of the working head is provided with an internal thread, which matches the external thread on the high-lock bolt to be assembled, and the upper end of the working head is connected to the end of the extension rod.

[0006] Further, the working head is in the shape of a short cylinder, and the end connected to the extension rod is set as an internal hexagonal hole or an internal square hole.

[0007] Further, the extension rod is in the shape of a long cylinder, and the lower end is provided with an external hexagonal head or an external square head for matching with the working head.

[0008] Further, the upper end of the extension rod is connected and fixed to a pneumatic or electric tool.

[0009] Further, the outer cylindrical surface of the extension rod is provided with knurling.

[0010] Further, the same extension rod is matched with multiple working heads with different specifications of internal threads, and different specifications of internal threads correspond to the external threads of the high-lock bolts to be assembled.

[0011] The effective technical effects of the present utility model are as follows: By using the device of the present utility model, force can be applied from the threaded end of the Hi-Lok bolt. By slowly rotating the device, the Hi-Lok bolt can be gradually pulled out to the proper position from the hole with interference fit of the workpiece, thus completing the installation of the Hi-Lok bolt. This solves the problem that in a closed and narrow space, it is impossible to apply force from the head direction of the Hi-Lok bolt to complete the installation. At the same time, by replacing the acting head with different specifications of internal threads, the device can be applied to the installation of various different specifications of Hi-Lok bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 FIG. is a schematic diagram of a pulling device for installing Hi-Lok bolts in an enclosed area of an aircraft;

[0013] Figure 2 FIG. is a schematic diagram of the acting head of a pulling device for installing Hi-Lok bolts in an enclosed area of an aircraft;

[0014] Figure 3 FIG. is a schematic diagram of the extension rod of a pulling device for installing Hi-Lok bolts in an enclosed area of an aircraft;

[0015] Figure 4 FIG. is a schematic diagram of an embodiment of a pulling device for installing Hi-Lok bolts in an enclosed area of an aircraft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0017] As Figure 4 shown, a workpiece 6 for installing a Hi-Lok bolt 7 of HST10AG5 is a C-shaped part, and the head of the Hi-Lok bolt 7 faces the inside of the C-shaped workpiece 6. Since the Hi-Lok bolt 7 is an interference fit and the opening of the C-shaped part is small, there is no operating space for the installation method of knocking the head of the Hi-Lok bolt with a tool.

[0018] As Figures 1 to 3As shown in the figure: An installation and extraction device for high-lock bolts in the enclosed area of an aircraft is provided in an embodiment of the present utility model. This device includes two parts: a working head 1 and an extension rod 2. The working head 1 is in the shape of a short cylinder, with an internal thread 3 at the lower end. The internal thread 3 matches the external thread on the high-lock bolt. The upper end of the working head 1 is provided with an internal square hole 4. The extension rod 2 is in the shape of a long cylinder, with an external square head 5 at the lower end. The external square head 5 matches the internal square hole 4 on the working head 1. The upper end of the extension rod 2 is connected and fixed to a pneumatic or electric tool. The working head 1 and the extension rod 2 are connected and matched through the internal square hole 4 on the working head 1 and the external square head 5 on the extension rod 2. The same extension rod 2 can be matched with multiple working heads 1 with different specifications of internal threads 3. The internal bolt 3 can be of different specifications such as 8-32UNJC-3B, 10-32UNJF-3B, 1 / 4-28UNJF-3B, etc., and is respectively matched with high-lock bolts of different specifications such as HST10AG5, HST10AG6, HST10AG8, etc.

[0019] The operation process is as follows: When installing the HST10AG5 high-lock bolt, first insert the threaded part of the high-lock bolt into the workpiece hole, then select the working head 1 with an internal thread 3 of 8-32UNJC-3B, screw the working head 1 onto the high-lock bolt for 1-2 pitches, and then insert the external square head 5 of the extension rod 2 into the internal square hole 4 of the working head 1 to complete the connection between the extension rod 2 and the working head 1. Select a three-jaw electric drill to grip the upper part of the extension rod 2. In this way, start the electric drill to rotate the extension rod 2, and the extension rod 2 can drive the working head 1 to rotate, and the working head 1 can slowly pull the high-lock bolt upward until it is installed in place. When installing other models of high-lock bolts such as HST10AG6 and HST10AG8, just select the working head 1 with different internal bolts 3 such as 10-32UNJF-3B and 1 / 4-28UNJF-3B.

[0020] This device has a simple and ingenious structure, solves the problems in the production process, is convenient for on-site use, has universality, and has great popularization value.

[0021] The above specific embodiments or cases are only used to explain and illustrate the technical solutions of the present utility model, and do not limit the present utility model. The parts not described in detail are regarded as conventional technical means in the art; those of ordinary skill in the art should understand that based on the design concept of this application, the technical solutions recorded in the foregoing embodiments should be adaptively modified, or some or all of the technical features should be equivalently replaced. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A high-lock bolt installation and pulling device for an aircraft closed area, characterized in that: The device comprises an action head and an extension rod; the lower end of the action head is provided with an internal thread which matches the external thread on the high locking bolt to be assembled, and the upper end of the action head is connected with the end of the extension rod.

2. The high-lock bolt installation and pulling device for an aircraft enclosed area according to claim 1, characterized in that: The action head is in the shape of a short cylinder, and one end connected to the extension rod is arranged with an inner hexagonal hole or an inner square hole.

3. The aircraft closed area high locking bolt installation and pulling device as claimed in claim 2, characterized in that: The extension rod is in the shape of a long cylinder, and has an outer hexagonal head or an outer square head at the lower end for matching with the action head.

4. The aircraft closed area high locking bolt installation and pulling device as claimed in claim 3, characterized in that: The upper end of the extension rod is connected and fixed to a pneumatic or electric tool.

5. The aircraft enclosed area high locking bolt installation and pulling device as claimed in claim 4, characterized in that: The outer circumferential surface of the extension rod is provided with knurling.

6. A high-lock bolt installation and pulling device for an aircraft enclosed area according to any one of claims 1 to 5, characterized in that: The same extension rod is matched with multiple action heads with internal threads of different specifications, and the internal threads of different specifications correspond to the external threads of the high-locking bolts to be assembled.

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