Dotting device for horizontal measuring point of airplane

Abstract

The utility model belongs to the aircraft assembly technology, and relates to a dotting device for horizontal measuring points of an aircraft. The device comprises a seat, an ejector pin, a handle and a compression spring, a through hole is formed in the seat; the ejector pin is divided into an ejector pin section, a guide rod section and a screw section; the screw section is fixedly connected with the handle; the guide rod section penetrates into the through hole, the through hole serves as a movement channel of the guide rod section, the ejector pin section is exposed out of the through hole, and the compression spring is sleeved on the guide rod section between the seat and the handle.

Description

Technical Field

[0001] The utility model belongs to the field of aircraft assembly technology, and relates to a device for marking aircraft horizontal measurement points. Background Art

[0002] At present, most of the devices for marking aircraft horizontal measurement points use navigation markers. They adopt a square guide groove design, and it is difficult to ensure manufacturing tolerances, resulting in poor sliding of the ejector pin in the square guide groove. Moreover, they use dimensional installation and are not suitable for the laser tracker installation method commonly used today. Content of the Utility Model

[0003] Purpose of the utility model: To provide a device for marking aircraft horizontal measurement points, which solves the problems that it is difficult to achieve manufacturing precision, the sliding is not smooth, and the installation method cannot keep up with the latest installation means.

[0004] Technical Solution

[0005] Provide a device for marking aircraft horizontal measurement points, including: a seat, an ejector pin, a handle, and a compression spring;

[0006] A through hole is provided in the seat; the ejector pin is divided into an ejector pin section, a guide rod section, and a screw rod section; the screw rod section is fixedly connected to the handle; the guide rod section penetrates into the through hole, and the through hole serves as the movement channel of the guide rod section. The ejector pin section is exposed outside the through hole, and the compression spring is sleeved on the guide rod section between the seat and the handle.

[0007] The device further includes: a washer;

[0008] The washer is sleeved at both ends of the spring.

[0009] The handle is a ball head handle.

[0010] During operation, the ball head handle is forced by an external force to compress the compression spring, and the tip of the ejector pin contacts the aircraft skin; when not in operation, under the action of the elastic force of the compression spring, the tip of the ejector pin is away from the aircraft skin.

[0011] A bushing is installed in the through hole.

[0012] The seat is fixed to the tooling fixture by bolts.

[0013] Advantageous Effects

[0014] The utility model adopts hole-shaft fit, is easy to manufacture, the ejector pin slides smoothly in the seat body, the seat body is provided with a measurement point hole, and it can be conveniently installed through a laser tracker. The handle is changed to a ball head handle, and the holding feel is good. Description of the Drawings

[0015] Figure 1a It is the front view of the marking device.

[0016] Figure 1b It is the rear view of the marking device.

[0017] Figure 1c It is the upward view of the dotting device.

[0018] Figure 2a It is the front view of seat 1.

[0019] Figure 2b It is the rear view of seat 1.

[0020] Figure 2c It is the upward view of seat 1.

[0021] Figure 3 It is the schematic structural view of the ejector pin 2.

[0022] Figure 4a It is the front view of the ball head handle.

[0023] Figure 4b It is the rear view of the ball head handle.

[0024] Figure 5a It is the front view of the compression spring.

[0025] Figure 5b It is the rear view of the compression spring. Specific embodiments

[0026] Provide an aircraft horizontal measurement point dotting device. Refer to Fig. 1~ Figure 5b , The dotting device is composed of 5 parts such as seat 1, ejector pin 2, ball head handle 3, compression spring 4 and washer 5.

[0027] The seat 1 is fixed on the tooling jig by bolts; the ejector pin 2 is installed in the precision hole of the seat 1, one end of which has a diameter larger than the aperture of the seat 1, and the other end is connected to the ball head handle 3; the compression spring 4 passes through the ejector pin 2, and one washer 5 is placed at each end.

[0028] When the ejector pin 2 is in the non-working state, under the action of the compression spring 4, the end with the larger diameter of the ejector pin 2 closely abuts against the end face of the seat 1. During work, hold the ball head handle 3 and press it down, and the tip of the ejector pin 2 contacts the aircraft skin, so as to determine the position of the horizontal measurement point.

Claims

1. An aircraft horizontal measurement point marking device, characterized in that, Comprising: a base (1), a thimble (2), a handle, and a compression spring (4); a through hole is provided in the base (1); the thimble (2) is divided into a thimble section, a guide rod section, and a screw rod section; the screw rod section is fixedly connected to the handle; the guide rod section penetrates into the through hole, and the through hole serves as the movement channel for the guide rod section, the thimble section is exposed outside the through hole, and the compression spring is sleeved on the guide rod section between the base (1) and the handle.

2. The device according to claim 1, characterized in that Further comprising: a washer (5); the washer (5) is sleeved at both ends of the spring.

3. The device according to claim 1, characterized in that, The handle is a ball head handle (3).

4. The device according to claim 3, characterized in that During operation, the ball head handle (3) is forced by an external force to compress and deform the compression spring (4), and the tip of the thimble (2) contacts the aircraft skin; when not in operation, under the action of the elastic force of the compression spring (4), the tip of the thimble (2) is away from the aircraft skin.

5. The device according to claim 1, characterized in that, A bushing is installed in the through hole.

6. The device according to claim 1, wherein The base (1) is fixed to the tooling jig by bolts.

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