WO2022089581A1

WO2022089581A1 - Assembly method and system for flat array sar antenna unfolding system

Info

Publication number: WO2022089581A1
Application number: PCT/CN2021/127427
Authority: WO
Inventors: 李云; 张加波; 韩建超; 曾婷; 李德勇; 刘博�; 张志强; 鲁利刚
Original assignee: 北京卫星制造厂有限公司
Priority date: 2020-10-30
Filing date: 2021-10-29
Publication date: 2022-05-05
Also published as: CN112476315B; CN112476315A

Abstract

An assembly method and system for a flat array SAR antenna unfolding system. The positions of an antenna panel (2) and a coaxial hinge (10) are measured by a measuring system; a control system (11) controls a panel attitude adjusting mechanism (3) and a panel supporting mechanism (4) to adjust the position and flatness of the antenna panel (2) according to a measurement result; and a hinge attitude adjusting mechanism (8) is controlled to adjust the spatial position of the coaxial hinge (10). The present invention realizes the high-precision, automatic and quick assembly and adjustment of the panel and the hinge of the flat array SAR antenna unfolding system, can meet the assembly requirements that the flatness of the panel is ≤0.1 mm, the displacement adjustment precision is ≤0.02 mm, and the angle adjustment precision is ≤0.01° within the range of 10 m × 2.5 m, and improves the assembly precision and efficiency of large-scale flat array SAR antenna unfolding systems.

Description

A method and system for assembling a flat panel array SAR antenna deployment system

This application claims the priority of the Chinese patent application filed on October 30, 2020 with the application number 202011191844.0 and the application title "An Assembly Method and System for a Flat Panel Array SAR Antenna Deployment System", the entire contents of which are approved by Reference is incorporated in this application.

technical field

The invention relates to an assembly method and system of a flat panel array SAR antenna deployment system, in particular to a high-precision automatic assembly method and system of a large flat panel array SAR antenna deployment system, belonging to the technical field of mechanical engineering.

Background technique

The large-scale flat-panel array SAR antenna is an important part of satellites and an important physical platform for directly performing satellite functions. It is a new type of space structure produced with the rapid development of aerospace technology in recent years. , Earth observation and military reconnaissance and many other fields.

The flat-panel array SAR antenna deployment system is a key component of the satellite. The antenna deployment system consists of a complex deployable space truss mechanism. The size of each rod system is highly coupled, and the interface between the rod system and the hinge is highly matched. Factors such as the locking angle of the hinge, the clearance of the rotating shaft, the length of the rod, and the spatial position of the hinge and the joint will affect the assembly and deployment accuracy of the antenna, thereby affecting the observation accuracy and performance of the satellite. With the continuous development of space missions, the size of the flat-panel array SAR antenna is getting larger and larger, which leads to an increase in the size and number of rods in the deployment system. In order to ensure the accuracy of the antenna, it is necessary to assemble the antenna deployment system with high precision.

At present, the installation and adjustment of the large-scale flat-panel array SAR antenna deployment system is mainly manual operation. Because the spatial position of the antenna hinge and the rod system is difficult to accurately locate, a large number of tooling is required to ensure the spatial size and position of the rod system, hinge and antenna panel. Assembly tooling The accuracy of the antenna and the level of the operator's assembly and adjustment directly determine the assembly accuracy of the antenna, and the assembly tooling does not have scalability and versatility, so it is difficult to meet the assembly requirements of the large-scale flat-panel array SAR antenna deployment system. At the same time, during the assembly process of the product, a laser tracker needs to be used to measure the assembly accuracy. During the process of repeated trial matching, adjustment and testing, the operator may hold the target ball many times in contact with the product, which will reduce the assembly reliability of the product. stability. In order to improve assembly efficiency and ensure assembly reliability and stability, automated assembly of the antenna deployment system is required.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a method and system for assembling a flat panel array SAR antenna deployment system. The control panel attitude adjustment mechanism and the panel support mechanism adjust the position and flatness of the antenna panel, and control the hinge attitude adjustment mechanism to adjust the spatial position of the coaxial hinge. The panel and hinge of the flat-panel array SAR antenna deployment system are realized with high precision, automation and quick adjustment, which can satisfy the flatness of the panel within the range of 10m×2.5m≤0.1mm, the displacement adjustment accuracy≤0.02mm, and the angle adjustment accuracy≤0.01° , which improves the assembly accuracy and efficiency of the large-scale flat-panel array SAR antenna deployment system.

The object of the present invention is achieved through the following technical solutions:

An assembly system for a flat-panel array SAR antenna deployment system. The antenna deployment system includes an antenna panel, a rod hinge, a rod, and a coaxial hinge. The rod hinge is installed on the antenna panel, and different rod hinges are connected by rods. , The rod hinge and the coaxial hinge are connected by rods; the assembly system includes an assembly platform, a panel attitude adjustment mechanism, a panel support mechanism, a gantry, a hinge attitude adjustment mechanism, a measurement system, and a control system;

The assembly platform is used to provide a support table; the panel attitude adjustment mechanism is located below the antenna panel and is used to adjust the position of the antenna panel; the panel support mechanism is used to support the antenna panel and adjust the flatness of the antenna panel;

The hinge attitude adjustment mechanism is installed on the gantry and connected with the coaxial hinge, and the hinge attitude adjustment mechanism is used to adjust the relative position between the coaxial hinge and the rod hinges on the two antenna panels;

The measurement system is used to measure the position of the antenna panel, the flatness of the two antenna panels, the position of the rod hinge, and the position of the coaxial hinge, and send the measurement results to the control system;

The control system is used to control the panel attitude adjustment mechanism, the panel support mechanism, the hinge attitude adjustment mechanism and the measurement system.

In the above-mentioned assembly system of the flat panel array SAR antenna deployment system, preferably, the panel attitude adjustment mechanism is located below the center position of the antenna panel.

In the above-mentioned assembly system of the flat panel array SAR antenna deployment system, preferably, four panel support mechanisms are placed under the four corner positions of each antenna panel.

In the above-mentioned assembly system of the flat panel array SAR antenna deployment system, preferably, the initial height of the panel support mechanism is set as the lowest height.

In the assembly system of the above-mentioned flat panel array SAR antenna deployment system, preferably, the control system controls the panel attitude adjustment mechanism and the panel support mechanism to operate according to the difference between the actual position and the theoretical position of the antenna panel; according to the actual position of the coaxial hinge The difference from the theoretical position controls the hinge posture adjustment mechanism to move.

In the above-mentioned assembly system of the flat panel array SAR antenna deployment system, preferably, the panel attitude adjustment mechanism and the hinge attitude adjustment mechanism can realize six degrees of freedom attitude adjustment.

For the assembly system of the above-mentioned flat-panel array SAR antenna deployment system, preferably, coding marks are pasted on the antenna panel, the rod hinge, and the coaxial hinge; the measurement system adopts a multi-eye photogrammetry system, which can calculate the antenna according to the measured coding marks. Position and flatness of panels, rod hinges, coaxial hinges.

A method for assembling a flat-panel array SAR antenna deployment system, using the above-mentioned assembling system for the flat-panel array SAR antenna deployment system, includes the following steps:

S1. Install the panel attitude adjustment mechanism and the panel support mechanism on the assembly platform, install the antenna panel on the panel attitude adjustment mechanism, and keep the panel support mechanism and the antenna panel not in contact; use the measurement system to measure the actual position of the antenna panel, control the According to the difference between the actual position of the antenna panel and the theoretical position, the system controls the attitude adjustment mechanism of the panel to make the antenna panel reach the theoretical position; the control system panel support mechanism supports the antenna panel;

S2. Use the measurement system to measure the flatness of the two antenna panels, and the control system controls the support mechanism to make the flatness of the two antenna panels reach a preset value;

S3. Install the rod hinge on the antenna panel, measure the position of the rod hinge with the measurement system, determine the length of the rod between different rod hinges according to the position of the rod hinge, and install the corresponding rod on the different rods between the hinges;

S4. Install the gantry frame on the assembly platform, the gantry frame is located above the middle of the two antenna panels, and the hinge attitude adjustment mechanism is installed under the gantry frame; the coaxial hinge is installed under the hinge attitude adjustment mechanism; the measurement system is used to measure the coaxial hinge position, the control system controls the hinge posture adjustment mechanism to make the coaxial hinge reach the theoretical position;

S5. Determine the length of the rod between the rod hinge and the coaxial hinge according to the positions of the rod hinge and the coaxial hinge, and install the corresponding rod on the rod hinge and the coaxial hinge.

In the above-mentioned assembling method of the flat panel array SAR antenna deployment system, preferably, the flatness of the two antenna panels is preset to 0.1 mm.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The present invention solves the shortcomings of poor precision and low efficiency of the deployment system of the antenna by manually assembling and adjusting, improves the assembly precision and efficiency of the deployment system of the large-scale flat panel array SAR antenna, and realizes the installation of the panel and hinge of the deployment system of the large-scale flat panel array SAR antenna. High precision, automation, fast assembly and adjustment;

(2) The present invention avoids using a large number of tooling to ensure the spatial size and position of the rod system, the hinge and the antenna panel, so that the assembly and adjustment of the hinge and the antenna panel do not depend on the accuracy of the assembly tooling and the technical level of the operator;

(3) The present invention adopts a non-contact multi-eye photogrammetry system for measurement, and does not need to use instruments and equipment such as laser trackers and theodolites for measurement, so as to avoid contacting the product during the assembly process and affect the reliability and stability of the product;

(4) The assembly method of the present invention can meet the assembly requirements of the flatness of the panel within the range of 10m×2.5m≤0.1mm, the displacement adjustment accuracy≤0.02mm, and the angle adjustment accuracy≤0.01°;

(5) The present invention can be applied to the precise assembly requirements of different types of flat-panel array SAR antennas, and the assembly and adjustment system has versatility and scalability.

Description of drawings

1 is a schematic diagram of an assembly system of a flat panel array SAR antenna deployment system of the present invention;

FIG. 2 is a flow chart of the implementation process of an assembly method of a flat panel array SAR antenna deployment system of the present invention;

FIG. 3 is a schematic diagram of the panel attitude adjustment mechanism or the hinge attitude adjustment mechanism according to the present invention (the panel attitude adjustment mechanism and the hinge attitude adjustment mechanism have the same structure but different sizes);

FIG. 4 is a schematic diagram of the panel support mechanism according to the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

An assembly system of a flat-panel array SAR antenna deployment system. The antenna deployment system includes an antenna panel 2, a rod hinge 5, a rod 6, and a coaxial hinge 10. The rod hinge 5 is installed on the antenna panel 2. Different rod hinges 5 are connected by rod 6, and the rod hinge 5 and coaxial hinge 10 are connected by rod 6; the assembly system includes assembly platform 1, panel attitude adjustment mechanism 3, panel support mechanism 4, gantry 7, hinge attitude adjustment Mechanism 8, measurement system 9, control system 11;

The assembly platform 1 is used to provide a support table; the panel attitude adjustment mechanism 3 is located below the antenna panel 2 and is used to adjust the position of the antenna panel 2; the panel support mechanism 4 is used to support the antenna panel 2 and adjust the antenna panel. 2 flatness;

The hinge attitude adjustment mechanism 8 is installed on the gantry 7 and is connected with the coaxial hinge 10. The hinge attitude adjustment mechanism 8 is used to adjust the relative position between the coaxial hinge 10 and the rod hinges 5 on the two antenna panels 2;

The measurement system 9 is used to measure the position of the antenna panel 2, the flatness of the two antenna panels 2, the position of the rod hinge 5, and the position of the coaxial hinge 10, and send the measurement results to the control system 11;

The control system 11 is used to control the panel attitude adjustment mechanism 3 , the panel support mechanism 4 , the hinge attitude adjustment mechanism 8 , and the measurement system 9 .

As a preferred solution of the present invention, the panel attitude adjustment mechanism 3 is located below the center of the antenna panel 2 . Below the four corner positions of each antenna panel 2 are placed four panel support mechanisms 4 .

As a preferred solution of the present invention, the initial height of the panel support mechanism 4 is set as the lowest height.

As a preferred solution of the present invention, the control system 11 controls the panel attitude adjustment mechanism 3 and the panel support mechanism 4 to operate according to the difference between the actual position of the antenna panel 2 and the theoretical position; according to the actual position of the coaxial hinge 10 The difference from the theoretical position controls the hinge posture adjusting mechanism 8 to act.

As a preferred solution of the present invention, the panel attitude adjustment mechanism 3 and the hinge attitude adjustment mechanism 8 can realize six degrees of freedom attitude adjustment.

As a preferred solution of the present invention, coding marks are pasted on the antenna panel 2, the rod hinge 5, and the coaxial hinge 10; the measurement system 9 adopts a multi-eye photogrammetry system, which can calculate the antenna panel according to the measured coding marks 2. The position and flatness of the rod hinge 5 and the coaxial hinge 10.

A method for assembling a flat panel array SAR antenna deployment system, using the above-mentioned assembling system, includes the following steps:

S1, install the panel attitude adjustment mechanism 3 and the panel support mechanism 4 on the assembly platform 1, install the antenna panel 2 on the panel attitude adjustment mechanism 3, keep the panel support mechanism 4 and the antenna panel 2 out of contact; use the measurement system 9 The actual position of the antenna panel 2 is measured, and the control system 11 controls the panel attitude adjustment mechanism 3 to make the antenna panel 2 reach the theoretical position according to the difference between the actual position of the antenna panel 2 and the theoretical position; the control system 11 supports the antenna panel 2 by the panel support mechanism 4 ;

S2, the flatness of the two antenna panels 2 is measured by the measurement system 9, and the control system 11 controls the support mechanism 4 to make the flatness of the two antenna panels 2 reach a preset value;

S3. Install the rod hinge 5 on the antenna panel 2, measure the position of the rod hinge 5 by using the measuring system 9, determine the length of the rod 6 between different rod hinges 5 according to the position of the rod hinge 5, and measure the length of the rod 6 between the different rod hinges 5. Corresponding rods 6 are installed between different rod hinges 5;

S4, install the gantry frame 7 on the assembly platform 1, the gantry frame 7 is located above the middle position of the two antenna panels 2, the hinge attitude adjustment mechanism 8 is installed under the gantry frame 7; the coaxial hinge 10 is installed under the hinge attitude adjustment mechanism 8; Using the measurement system 9 to measure the position of the coaxial hinge 10, the control system 11 controls the hinge posture adjustment mechanism 8 to make the coaxial hinge 10 reach the theoretical position;

S5. Determine the length of the rod 6 between the rod hinge 5 and the coaxial hinge 10 according to the positions of the rod hinge 5 and the coaxial hinge 10, and install the corresponding rod 6 on the rod hinge 5 and the coaxial hinge 10.

As a preferred solution of the present invention, the preset value of the flatness of the two antenna panels 2 is 0.1 mm.

Example:

1 is a schematic diagram of the assembly system of a flat panel array SAR antenna deployment system, including an assembly platform 1, a panel attitude adjustment mechanism 3, a panel support mechanism 4, a gantry 7, a hinge attitude adjustment mechanism 8, a measurement system 9, and a control system 11 . The components of the antenna deployment system include the antenna panel 2 , the rod hinge 5 , the rod 6 , and the coaxial hinge 10 .

FIG. 2 shows a flow chart of the implementation process of the assembling method according to the present invention.

3 is a schematic diagram of the panel attitude adjustment mechanism 3 and the hinge attitude adjustment mechanism 8. The panel attitude adjustment mechanism 3 and the hinge attitude adjustment mechanism 4 have the same structure but different sizes. The fixed platform of the attitude adjustment mechanism is fixed, and the movable platform of the attitude adjustment mechanism moves according to the control signal. The six-degree-of-freedom attitude adjustment can move the connected antenna panel 2 or the coaxial hinge 10 to a specified position.

4 is a schematic diagram of the panel support mechanism 4, the fixed platform of the panel support mechanism 4 is fixed, the movable platform of the panel support mechanism 4 can move according to the control signal, and the adjustment nut can be rotated for fine adjustment in the height direction.

(1) Antenna panel installation

Paste coding marks on 10 bosses reflecting the antenna flatness and position information on each antenna panel 2, install the fixed platforms of the two panel attitude adjustment mechanisms 3 on the assembly platform 1, and install the panel attitude adjustment mechanism 3 on the moving platform Install the antenna panel 2, and the panel attitude adjustment mechanism 3 is located below the center of the antenna panel 2. Four height-adjustable panel support mechanisms 4 are placed under the four corner positions of each antenna panel 2. The fixed platform of the panel support mechanism 4 is installed on the assembly platform, and the height of the movable platform of the panel support mechanism 4 is adjusted to be the lowest. The antenna panel 2 does not touch.

Start the control system 11, and start the measurement system 9 through the control system 11 to measure the position of the antenna panel 2. After the measurement, the control system 11 receives the measurement end signal and the measurement result, and then the control system 11 will be based on the actual position of the panel and the theoretical position. After the adjustment is completed, the control system 11 receives the adjustment end signal and starts the measurement system 9 again. The above automated measurement-attitude adjustment process goes through several iterations until the antenna panel 2 is adjusted to the theoretical position.

Adjust the height of the panel support mechanism 4 until the moving platform of the panel support mechanism 4 just contacts the panel 2 . In the same way, adjust the position of another antenna panel 2 to the theoretical position, and adjust the height of the panel support mechanism 4 until the moving platform of the panel support mechanism 4 is just in contact with the antenna panel 2.

(2) Leveling the antenna panel

The measurement system 9 is activated by the control system 11 to measure the flatness of the two panels 2. After the measurement, the control system 11 receives the measurement end signal and the measurement result, and then the control system 11 controls the support mechanism 4 to adjust according to the height direction needs. , after the adjustment is completed, the control system 11 receives the adjustment end signal and starts the measurement system 9 again. The above automated measurement-adjustment process goes through several iterations until the antenna panel 2 is leveled to meet the requirement that the flatness of the panel within the range of 10m×2.5m is ≤0.1mm.

(3) Install the hinges and rods on the antenna panel

After the hinge 5 is installed on the antenna panel 2, the measurement system 9 is started to measure the distance error of the center hole of the inner and outer plate pressing lugs, the coaxiality error between the corresponding hinges and the length error of the corresponding rod. If the requirements of distance error ≤ 0.1mm, coaxiality error ≤ 0.1mm, length error ≤ 0.1mm are not met, adjust manually; if the requirements are met, trim rod 6 according to the measured distance, and install the corresponding rod 6 to the rod hinge 5 and fix it.

(4) Install the coaxial hinge

Both ends of the coaxial hinge 10 are installed with measuring tooling with coded marks, and the positional relationship between the measuring tooling and the central axis of the coaxial hinge is calibrated by three coordinates.

Install the gantry 7 on the assembly platform 1, the gantry 7 is located above the middle of the two antenna panels 2, and the hinge attitude adjustment mechanism 8 is installed under the gantry 7, which is connected with the fixed platform of the hinge attitude adjustment mechanism 8, and the hinge adjusts. A coaxial hinge 10 is installed under the moving platform of the attitude mechanism 8 .

The measurement system 9 is activated by the control system 11 to measure the position of the coaxial hinge 10 . After the measurement, the control system 11 receives the measurement end signal and the measurement result, and then the control system 11 will determine the difference between the actual position and the theoretical position of the coaxial hinge 10 according to the difference between the actual position and the theoretical position of the coaxial hinge 10 . After the adjustment is completed, the control system 11 receives the adjustment end signal and starts the measurement system 9 again. The above automatic measurement-attitude adjustment process goes through several iterations until the coaxial hinge is adjusted to the theoretical position, and the height difference is ≤0.5mm, the horizontal distance is ≤0.1mm, and the deviation from the central axis is ≤0.2mm.

(5) Install the remaining hinges and rods

In the same way as installing the hinges and rods on the antenna panel, install the remaining hinges and rods. After the hinges are installed, start the measurement system 9 to measure the coaxiality error between the corresponding hinges and the length error of the corresponding rods. If the requirements of the corresponding hinge coaxiality error ≤ 0.1mm and length error ≤ 0.1mm are not met, adjust manually. If the requirements are met, trim the rod according to the measured distance, and install the corresponding rod 6 to the hinge of the rod system. and fixed.

The invention solves the technical problems of high precision and automatic assembly of the panel position, hinge position and rod position of the large flat panel array SAR antenna deployment system, and has the following effects:

It solves the shortcomings of poor precision and low efficiency of the manual antenna deployment system, improves the assembly accuracy and efficiency of the large-scale flat-panel array SAR antenna deployment system, and realizes the panel position, hinge position and pole position of the large-scale flat-panel array SAR antenna deployment system. high-precision, automated and fast assembly.

The assembling method of the invention can meet the assembly requirements of the flatness of the panel within the range of 10m×2.5m≤0.1mm, the displacement adjustment accuracy≤0.02mm, and the angle adjustment accuracy≤0.01°.

The content not described in detail in the specification of the present invention belongs to the well-known technology of those skilled in the art.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can use the methods and technical contents disclosed above to improve the present invention without departing from the spirit and scope of the present invention. The technical solutions are subject to possible changes and modifications. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention belong to the technical solutions of the present invention. protected range.

Claims

An assembling system for a flat panel array SAR antenna deployment system, the antenna deployment system comprises an antenna panel (2), a rod hinge (5), a rod (6), a coaxial hinge (10), and the rod hinge (5) is mounted on the On the antenna panel (2), different rod hinges (5) are connected by rods (6), and the rod hinges (5) and the coaxial hinges (10) are connected by rods (6); it is characterized in that , the assembly system includes an assembly platform (1), a panel attitude adjustment mechanism (3), a panel support mechanism (4), a gantry (7), a hinge attitude adjustment mechanism (8), a measurement system (9), a control system ( 11);

The assembly platform (1) is used to provide a support table; the panel attitude adjustment mechanism (3) is located below the antenna panel (2) and is used to adjust the position of the antenna panel (2); the panel support mechanism (4) for supporting the antenna panel (2) and adjusting the flatness of the antenna panel (2);

The hinge attitude adjustment mechanism (8) is mounted on the gantry (7) and connected with the coaxial hinge (10), and the hinge attitude adjustment mechanism (8) is used to adjust the coaxial hinge (10) and the two antenna panels (2) The relative position between the rod hinges (5) on the upper;

The measuring system (9) is used to measure the position of the antenna panel (2), the flatness of the two antenna panels (2), the position of the rod hinge (5), and the position of the coaxial hinge (10), and will measure the The result is sent to the control system (11);

The control system (11) is used to control the panel attitude adjustment mechanism (3), the panel support mechanism (4), the hinge attitude adjustment mechanism (8), and the measurement system (9).
The assembly system of a flat panel array SAR antenna deployment system according to claim 1, wherein the panel attitude adjustment mechanism (3) is located below the center of the antenna panel (2).
The assembly system of a flat panel array SAR antenna deployment system according to claim 1, wherein four panel support mechanisms (4) are placed under the four corner positions of each antenna panel (2).
The assembly system of a flat panel array SAR antenna deployment system according to claim 1, wherein the initial height of the panel support mechanism (4) is set as the lowest height.
The assembly system of a flat panel array SAR antenna deployment system according to claim 1, wherein the control system (11) adjusts the attitude of the control panel according to the difference between the actual position and the theoretical position of the antenna panel (2). The mechanism (3) and the panel support mechanism (4) act; according to the difference between the actual position and the theoretical position of the coaxial hinge (10), the hinge posture adjusting mechanism (8) is controlled to act.
The assembly system of a flat panel array SAR antenna deployment system according to claim 1, wherein the panel attitude adjustment mechanism (3) and the hinge attitude adjustment mechanism (8) can realize six degrees of freedom attitude adjustment.
The assembling system of a flat panel array SAR antenna deployment system according to claim 1, characterized in that a coding mark is pasted on the antenna panel (2), the rod hinge (5), and the coaxial hinge (10); the The measurement system (9) adopts a multi-eye photogrammetry system, which can calculate the position and flatness of the antenna panel (2), the rod hinge (5), and the coaxial hinge (10) according to the measured code mark.
A method for assembling a flat-panel array SAR antenna deployment system, characterized in that, using the assembling system described in any one of claims 1 to 7, comprising the following steps:

S1. Install the panel attitude adjustment mechanism (3) and the panel support mechanism (4) on the assembly platform (1), install the antenna panel (2) on the panel attitude adjustment mechanism (3), and keep the panel support mechanism (4). ) is not in contact with the antenna panel (2); the actual position of the antenna panel (2) is measured by the measuring system (9), and the control system (11) adjusts the The attitude mechanism (3) makes the antenna panel (2) reach the theoretical position; the control system (11) the panel support mechanism (4) supports the antenna panel (2);

S2, using the measuring system (9) to measure the flatness of the two antenna panels (2), and the control system (11) controlling the support mechanism (4) to make the flatness of the two antenna panels (2) reach a preset value;

S3. Install the rod hinge (5) on the antenna panel (2), use the measurement system (9) to measure the position of the rod hinge (5), and determine different rod hinges (5) according to the position of the rod hinge (5). ) between the rods (6), and install the corresponding rods (6) between different rod hinges (5);

S4, install the gantry frame (7) on the assembly platform (1), the gantry frame (7) is located above the middle position of the two antenna panels (2), and the hinge attitude adjustment mechanism (8) is installed below the gantry frame (7); A coaxial hinge (10) is installed below the hinge attitude adjustment mechanism (8); the position of the coaxial hinge (10) is measured by a measurement system (9), and the control system (11) controls the hinge attitude adjustment mechanism (8) to make the coaxial hinge ( 10) Reach the theoretical position;

S5. Determine the length of the rod (6) between the rod hinge (5) and the coaxial hinge (10) according to the positions of the rod hinge (5) and the coaxial hinge (10), and connect the corresponding rod ( 6) Install on the rod hinge (5) and the coaxial hinge (10).
The method for assembling a flat panel array SAR antenna deployment system according to claim 8, characterized in that the preset value of the flatness of the two antenna panels (2) is 0.1 mm.