Mechanical Scan Test Fixture

Abstract

The present invention provides a mechanical scanning test fixture, including an antenna fixture and a radome fixture; the antenna fixture is installed on an antenna bracket, and the antenna bracket is fixed on a pan-tilt platform; the radome fixture includes an absorbing material component, the absorbing material component is connected to a flange through a mounting component, and the flange is used to connect to a mechanical arm; the absorbing material component is provided with a through hole, the antenna bracket passes through the through hole, and the antenna fixture is located at the front side of the absorbing material. The mechanical scanning radome fixture provided by the present invention adopts a modular and lightweight design, the size of the antenna clamp can be customized according to customer requirements, and different types of radomes can be adapted by replacing different clamps, and the lightweight design ensures structural strength while reducing weight as much as possible.

Description

Technical Field

[0001] The invention relates to a mechanical scanning test fixture and belongs to the technical field of wave absorbing devices. Background Art

[0002] The mechanical scanning test fixture has the function of fixing the radome. The existing fixture can only measure the situation when the radome and the antenna are relatively fixed, and the fixture is heavy and cannot be replaced.

[0003] In addition, the mechanical scanning test fixture will have installation errors during installation. After installation, the central axis needs to be zeroed and adjusted manually, such as aligning the central axis of the fixed tooling with the central axis of the antenna cover. Summary of the invention

[0004] In view of the above technical problems, the present invention provides a mechanical scanning test fixture to meet the requirements of how to avoid interference between the antenna cover and the antenna when there is relative movement between the two during antenna testing, and to meet customer testing needs.

[0005] The specific technical solutions are:

[0006] Mechanical scanning test fixtures, including antenna fixtures and radome fixtures;

[0007] The antenna fixture is installed on the antenna bracket, and the antenna bracket is fixed on the pan-tilt platform;

[0008] The radome fixture comprises an absorbing material assembly, the absorbing material assembly is connected to a flange through a mounting assembly, and the flange is used to connect to a mechanical arm;

[0009] The absorbing material component is provided with a through hole, the antenna bracket passes through the through hole, and the antenna clamp is located at the front side of the absorbing material.

[0010] Wherein, the absorbing material assembly comprises an absorbing material support plate, and the outer side of the absorbing material support plate is covered with absorbing material.

[0011] Furthermore, the mounting assembly includes a lightweight mounting plate fixed to the rear side of the absorbing material support plate, the lightweight mounting plate is installed on one end of the support rod, the other end of the support rod is fixed to one side of the flange mounting plate, and the flange is fixed to the other side of the flange mounting plate.

[0012] Preferably, the lightweight mounting plate is a hollow plate.

[0013] The absorbing material and the absorbing material support plate are connected via a bristle sticker with adhesive backing.

[0014] A supporting angle piece is provided at the connection between the antenna bracket and the pan / tilt platform.

[0015] Beneficial effects of the present invention:

[0016] The mechanical scanning radome clamp adopts a modular and lightweight design. The size of the antenna clamp can be customized according to customer requirements. Different types of radomes can be adapted by replacing different radome clamps. The lightweight design ensures structural strength while reducing weight as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 is a schematic diagram of the antenna fixture structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the antenna cover clamp of the present invention;

[0020] Figure 4 It is a schematic diagram of the antenna cover fixture of the present invention rotating by +20 degrees;

[0021] Figure 5 It is a schematic diagram of the antenna cover clamp of the present invention rotating by -20 degrees. DETAILED DESCRIPTION

[0022] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments:

[0023] In this embodiment, the overall structure is as follows: Figure 1 As shown, the mechanical scanning test fixture includes an antenna fixture 9 and a radome fixture;

[0024] The antenna fixture is the fixed part, and the radome fixture is the movable part, such as Figure 2 , Figure 3 By replacing different antenna cover clamps, different antenna covers can be clamped; the present invention has the characteristics of convenient transportation, installation and disassembly.

[0025] like Figure 1 As shown, the antenna clamp 9 is installed on the antenna bracket 7, and the antenna bracket 7 is fixed on the pan-tilt head 8; a supporting angle piece is provided at the connection between the antenna bracket 7 and the pan-tilt head 8.

[0026] The antenna cover clamp includes an absorbing material support plate 2, the outer side of the absorbing material support plate 2 is covered with absorbing material 1, the rear side of the absorbing material support plate 2 is fixed on a lightweight mounting plate 3, the lightweight mounting plate 3 is installed on one end of a support rod 4, the other end of the support rod 4 is fixed on a flange mounting plate 5, and a flange 6 is fixed on the flange mounting plate 5.

[0027] Through holes are provided at corresponding positions on the absorbing material 1 , the absorbing material support plate 2 , and the lightweight mounting plate 3 , and the antenna bracket 7 passes through the through holes. The antenna clamp 9 is located at the front side of the absorbing material 1 .

[0028] The radome fixture is fixed on the mechanical arm through the flange 6. As the mechanical arm rotates, the radome fixture also rotates with an angle of ±20°. Figure 4 and Figure 5 As shown. The radome fixture cooperates with the mechanical arm, and the radome fixture swings with the mechanical arm without interfering with the antenna fixture 9. After the mechanical scanning test fixture is installed in combination with the supporting structures such as the mechanical arm and the tripod, the overall equipment is firm, stable and safe.

[0029] The hollow plate behind the lightweight mounting plate 3 makes the fixture as lightweight as possible without compromising the overall structural strength.

[0030] The absorbing material 1 and the absorbing material support plate 2 are connected via a bristle sticker with adhesive backing.

Claims

1. A mechanical scanning test fixture, characterized in that: It includes an antenna fixture (9) and a radome fixture; The antenna fixture (9) is mounted on the antenna bracket (7), and the antenna bracket (7) is fixed on the pan / tilt platform (8); The radome fixture comprises an absorbing material component, the absorbing material component is connected to a flange (6) via a mounting component, and the flange (6) is used to be connected to a mechanical arm; The absorbing material component is provided with a through hole, the antenna bracket (7) passes through the through hole, and the antenna clamp (9) is located on the front side of the absorbing material (1); The absorbing material assembly comprises an absorbing material support plate (2), the outer side of the absorbing material support plate (2) being covered with absorbing material (1); The mounting assembly comprises a lightweight mounting plate (3) fixed to the rear side of the absorbing material support plate (2); the lightweight mounting plate (3) is mounted on one end of a support rod (4); the other end of the support rod (4) is fixed to one side of a flange mounting plate (5); and the flange (6) is fixed to the other side of the flange mounting plate (5).

2. The mechanical scanning test fixture according to claim 1, characterized in that: The lightweight mounting plate (3) is a hollow plate at the rear.

3. The mechanical scanning test fixture according to claim 1, characterized in that: The absorbing material (1) and the absorbing material support plate (2) are connected via a bristle sticker with adhesive backing.

4. The mechanical scanning test fixture according to claim 1, characterized in that: A supporting angle piece is provided at the connection between the antenna bracket (7) and the pan / tilt platform (8).

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