CN214225412U

CN214225412U - Adjustable multi-model radar shafting calibration device

Info

Publication number: CN214225412U
Application number: CN202022788325.4U
Authority: CN
Inventors: 景素芳; 何红军; 李熹; 樊海博
Original assignee: Xian Electronic Engineering Research Institute
Current assignee: Xian Electronic Engineering Research Institute
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-09-17
Anticipated expiration: 2030-11-26

Abstract

The invention relates to an adjustable multi-model radar shafting calibration device, and belongs to the field of radar debugging. The two target plates are assembled to form a concave surface with the same size in each position area, the standard gain antennas are arranged in the position areas, the concave surfaces are assembled, and then the standard gain antennas are arranged in the specific positions of the concave surfaces. After the adjustable multi-model radar shafting calibration device is used, at least two or four different models of radar shafting calibration can be realized by one device, and the radar shafting calibration efficiency and the resource utilization rate are improved.

Description

Adjustable multi-model radar shafting calibration device

Technical Field

The invention belongs to the field of radar debugging and relates to an adjustable multi-model radar shafting calibration device.

Background

The device for calibrating the radar shafting is a device with a leveling function and a specific target position. The calibration of a certain type of radar on a shaft system is usually realized by manufacturing a special target plate with the central position of each shaft system of the radar of the type and fixing the target plate at a certain specific height or on a bracket for calibration. In the mass production and debugging process of the radar, each model needs a set of special target plate and bracket or fixed debugging position. In order to improve debugging calibration efficiency, reduce waste of resources and manpower, and improve the utilization rate of a debugging field, for radars with similar working frequencies, same overall dimensions and different models, target plates for calibration of the radars with the different models can be integrated and assembled on a set of support to share one standard gain antenna, and then the erection height of the target plates can be adjusted within a certain range according to needs, so that an adjustable multi-model radar shafting calibration device needs to be developed.

Disclosure of Invention

Technical problem to be solved

In order to avoid the defects of the prior art, the invention provides an adjustable multi-model radar shaft system calibration device.

Technical scheme

An adjustable multi-model radar shafting calibration device is characterized by comprising a first target plate, a second target plate, a standard gain antenna, a target plate mounting frame and a base; the upper right corner of the back surface of the first target plate and the upper left corner of the front surface of the second target plate are respectively provided with a concave surface with the same size, the two target plates are jointed at the concave surfaces, so that two side surfaces of the concave surfaces which are vertical to each other are completely jointed, two pairs of transverse lines and vertical lines of cross-shaped scribed lines corresponding to optical axes on the two target plates are ensured to be parallel, the front surfaces and the back surfaces of the two target plates are flush, and the left side of the first target plate and the right side of the second target plate are respectively provided with a plurality of round holes; the standard gain antenna is arranged at the center of the concave area; the target plate mounting frame comprises a vertical frame part and a transverse frame part, wherein the vertical frame part is provided with a strip-shaped mounting hole for fixing the first target plate and the second target plate, the transverse frame part is fixed on the base, and the vertical frame part and the transverse frame part are welded together.

The size of the concave surface is as follows: 160mm in length, 120mm in width and 2.5mm in depth.

A level gauge is mounted on the back surface of the first target plate.

The base is provided with 3 leveling support legs.

The base is provided with 4 trundles.

The strip-shaped mounting hole has a width of 4.5mm and a total length of 610 mm.

Advantageous effects

According to the adjustable multi-model radar shaft system calibration device, after the adjustable multi-model radar shaft system calibration device is used, at least two or four different types of radar shaft systems can be calibrated by one set of device, and the radar shaft system calibration efficiency and the resource utilization rate are improved.

Drawings

FIG. 1 is a three-dimensional model diagram of an adjustable multi-type radar shafting calibration device in an erected state

FIG. 2 is a diagram of a spliced part of two different target plates of the adjustable multi-model radar shafting calibration device: (a) the structure diagram of the splicing part of the first target plate; (b) second target board splicing part structure diagram

FIG. 3 is a partial assembly drawing of target plates of an adjustable multi-type radar shafting calibration device

FIG. 4 is a front view of an adjustable multi-type radar shafting calibration device

FIG. 5 is a reverse side view of an adjustable multi-type radar shafting calibration device

Detailed Description

The invention will now be further described with reference to the following examples and drawings:

the device mainly comprises a target plate part, a leveling function part and an adjustable erection support part for radars of two different models.

1. Target plate part

The part mainly comprises two different target plates with optical axis center target cross lines and standard gain antennas of the same type, in order to ensure that the two target plates are positioned in the same plane after being assembled, concave surfaces with the same size are respectively processed in the position areas where the standard gain antennas are arranged on the two target plates, and the standard gain antennas are arranged in specific positions of the concave surfaces after being assembled.

2. And a leveling function part.

The part consists of three leveling legs and a level gauge.

3. Height-adjustable erection support part

The part mainly comprises a chassis, a target plate mounting rack and casters. And strip-shaped mounting holes are processed on the target plate mounting frame and used for adjusting the mounting height of the target plate.

As shown in fig. 1, it is the erection state of the adjustable multi-type radar axis calibration device. As shown in figure 2, a piece 1 is a target plate 1 for radar calibration, a piece 2 is a target plate 2 for radar calibration, the thickness of each of the two target plates is 5mm, the material is an aluminum plate of 2A12, a cross groove with the width of 6mm and the depth of 0.5mm is processed at a specific position on the surface of the target plate, black paint is coated on the surface of the groove, a concave surface with the length of 160mm, the width of 120mm and the depth of 2.5mm is respectively processed in the upper right corner area of the first target plate 1 and the upper left corner area of the second target plate 2, the two target plates are attached at the concave surface, two side surfaces perpendicular to each other of the concave surface are completely attached, so as to ensure that two pairs of transverse lines and vertical lines of cross scribed lines corresponding to optical axes on the two target plates are parallel, the front and back surfaces of the two target plates are flush at the moment, a square hole for installing a

standard gain antenna

3 and 4 screw through holes in the concave surface of the two target plates are coincided, two cylindrical pins 4 with 3 multiplied by 6 are firstly used for positioning the two target plates at opposite corners of the concave surface, the standard gain antenna 3 is fixed on the target board by using 4 screws and nuts of M4. Two target plates that assemble are fixed on target plate mounting bracket 5 with 6M 4's screw and nut respectively from the left side of target plate 1, the right of target plate 2, two perpendicular frame parts that are used for installing the target plate of target plate mounting bracket 5 are the symmetrical installation of No. 3 angle steel that length is 1000mm, it has the width to be 4.5 mm's bar mounting hole and the round hole alternate arrangement that the aperture is 4.5mm to process on it, total length is 610mm for adjust the mounting height of target plate. The horizontal frame part 8 of the target plate mounting frame 5 is a U-shaped piece formed by welding No. 3 angle steel according to the direction shown in fig. 4(b), a through hole with the diameter of 8.5mm is processed on the surface contacting with the upper surface of the underframe, and then the vertical frame and the horizontal frame are welded together at the root contact part by fixing the through hole on the corresponding threaded hole of the underframe 6 by using a screw of M8. Constituting a target board mounting frame 5. The underframe 6 is made of 2A12 and is subjected to natural color oxidation treatment, the thickness of the underframe is 15mm, 4 casters 9 with brakes and the diameter of 100mm are arranged at four corners of the underframe, as shown in FIG. 4(b), the target plate support can move conveniently, three leveling support legs 7 on the underframe 6 are made of H62 and 150mm in length, and the rod part of each leveling support leg is a screw thread of M10 and is matched with a corresponding screw hole on the underframe 6 to adjust the level of the target plate. As shown in fig. 5(b), a level stand 13 is mounted at a predetermined position on the back surface of the target plate 1, and the level 10 is mounted thereon, and the right mounting end of the level 10 is placed on the top sleeve 11 and is connected to the level stand 13 by a screw. The left mounting end of the level 10 is connected with a level rack through a stud 12 and a nut, the parallelism between the level and a cursor cross reticle can be adjusted by means of plumb, the level is fixed, and the levelness of the level can be adjusted to ensure the level of a target plate by adjusting three leveling support legs 7 in subsequent axis calibration.

The multi-model radar shafting calibration device can be suitable for two kinds of radars listed in the text, and can be suitable for calibration of radar shafting of different models by replacing a standard gain antenna or one of target plates and changing the cross line position of an optical axis or the installation height of the target plate.

Claims

1. An adjustable multi-model radar shafting calibration device is characterized by comprising a first target plate (1), a second target plate (2), a standard gain antenna (3), a target plate mounting frame (5) and a base (6); the upper right corner of the back surface of the first target plate (1) and the upper left corner of the front surface of the second target plate (2) are respectively provided with a concave surface with the same size, the two target plates are attached at the concave surfaces, so that two side surfaces of the concave surfaces which are vertical to each other are completely attached to ensure that two pairs of transverse lines and vertical lines of cross-shaped scribed lines corresponding to optical axes on the two target plates are parallel, the front surfaces and the back surfaces of the two target plates are flush, and the left side of the first target plate (1) and the right side of the second target plate (2) are provided with a plurality of round holes; the standard gain antenna (3) is arranged at the center of the concave area; the target plate mounting frame (5) comprises a vertical frame part and a transverse frame part, wherein the vertical frame part is provided with a strip-shaped mounting hole for fixing the first target plate (1) and the second target plate (2), the transverse frame part is fixed on the base (6), and the vertical frame part and the transverse frame part are welded together.

2. The adjustable calibration device for the multi-model radar shafting according to claim 1, wherein the size of the concave surface is as follows: 160mm in length, 120mm in width and 2.5mm in depth.

3. The adjustable multi-model radar shafting calibration device according to claim 1, wherein a level gauge (10) is installed on the back surface of the first target plate (1).

4. The adjustable calibration device for the multi-model radar shafting according to claim 1, wherein 3 leveling supporting legs (7) are arranged on the base (6).

5. The adjustable calibration device for the multi-model radar shafting according to claim 1, wherein 4 casters (9) are arranged on the base (6).

6. The adjustable calibration device for the multi-model radar shafting according to claim 1, wherein the width of the strip-shaped mounting hole is 4.5mm, and the total length of the strip-shaped mounting hole is 610 mm.