Mirror assembly force-heat coupling evaluation system and method based on in-situ detection

Abstract

The invention discloses an in-situ detection-based mechanical-thermal coupling evaluation system and method for a reflector assembly, and belongs to the technical field of mechanical stability evaluation of precise optical elements in a dynamic environment. The problems of coupling effect distortion caused by separation of mechanical loading and thermal environment simulation in an existing reflector assembly experiment process, lack of a multi-dimensional deformation synchronous monitoring means and poor test repeatability caused by insufficient automation degree in the experiment process are solved. Comprising a central control system, a shell, and a conveying belt, a mechanical loading platform, an automatic clamping assembly, a laser interferometer, an autocollimator, an optical monitoring assembly and a high-speed camera monitoring assembly which are arranged in the shell and are in signal connection with the central control system, the optical monitoring assembly and the high-speed camera monitoring assembly achieve real-time monitoring of the experiment process and deformation monitoring of the reflector assembly, and vibration is applied to the optical system assembly through the mechanical loading platform. The device and the method are used for mechanical-thermal coupling detection and evaluation of the reflector assembly.

Description

Technical Field

[0001] The invention relates to a reflector assembly mechanical-thermal coupling evaluation system and method based on in-situ detection, belonging to the technical field of mechanical stability evaluation of precision optical elements in a dynamic environment. Background Art

[0002] In the modern optoelectronic system architecture, the reflector assembly is the core execution unit of optical path control, and its dynamic stability directly determines the imaging quality and long-term service reliability of the optical system. In typical application scenarios such as aerospace, automotive optics and precision instruments, this component needs to withstand a multi-physics coupling environment with wide-band random vibration loads and extreme temperature gradient coupling. Engineering practice shows that during the on-orbit operation of space optical payloads, the surface distortion of the reflector and the micro-displacement of the supporting structure caused by thermal-induced mechanical loads will cause the system error to show time-varying characteristics, significantly reducing the response performance of the optical transfer function. Since the reflector assembly is often embedded in a composite optomechanical structure, the traditional offline detection method has efficiency limitations and the risk of cumulative reinstallation errors, making it difficult to achieve in-situ dynamic characteristic characterization. Current research focuses on the precise measurement of static geometric parameters, while there is still a lack of effective multi-dimensional synchronous evaluation methods for key dynamic response indicators such as modal parameter identification and time-varying thermal stress distribution monitoring under multi-degree-of-freedom coupled motion. Summary of the invention

[0003] The present invention aims to solve the problems of distortion of coupling effect caused by separation of mechanical loading and thermal environment simulation in existing reflector assembly experiments, lack of multi-dimensional deformation synchronization monitoring means and poor test repeatability caused by insufficient automation of the experimental process, and thus provides a reflector assembly mechanical-thermal coupling evaluation system and method based on in-situ detection.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: A mechanical-thermal coupling evaluation system for a reflector assembly based on in-situ detection comprises a central control system, a shell, and a conveyor belt, a mechanical loading platform, an automatic clamping assembly, a laser interferometer, an autocollimator, an optical monitoring assembly, and a high-speed camera monitoring assembly, which are arranged in the shell and connected to the central control system signal. The conveyor belt and the mechanical loading platform are arranged in a T-shape in the horizontal direction, and both ends of the conveyor belt are connected to the outside of the shell. The automatic clamping assembly is located above the mechanical loading platform and is slidably installed on the top of the shell along the length direction of the mechanical loading platform. The laser interferometer and the autocollimator are relatively arranged on both sides of the mechanical loading platform. The reflector assembly is placed on the mechanical loading platform between the laser interferometer and the autocollimator through a fixture. The optical monitoring assembly and the high-speed camera monitoring assembly are both installed on the top of the shell to realize real-time monitoring of the experimental process and deformation monitoring of the reflector assembly. Vibration is applied to the optical system assembly through the mechanical loading platform. A temperature control device, a temperature measuring device, and an air quality detection module connected to the central control system signal are also arranged in the shell. The temperature control device provides a temperature environment for the optical system assembly, and the air quality detection module detects the cleanliness inside the shell.

[0005] Furthermore, a positioning device is also provided inside the shell, and the positioning device is located above the conveyor belt or on a side of the conveyor belt away from the mechanical loading platform, and the positioning device is arranged along the extension line direction of the mechanical loading platform.

[0006] Furthermore, the laser interferometer and the autocollimator are both installed on the bottom of the shell through a two-dimensional moving platform to adjust the test position of the reflector assembly.

[0007] Furthermore, the optical monitoring component and the high-speed camera monitoring component are respectively installed on the top of the shell through an omnidirectional adjustment platform to achieve the adjustment of the monitoring angles of the optical monitoring component and the high-speed camera monitoring component.

[0008] Furthermore, a slide is installed on the top of the shell, the slide is located directly above the mechanical loading platform and one end of the slide extends to above the conveyor belt, a linear displacement sensor is installed on the slide, and the linear displacement sensor is connected to the central control system signal.

[0009] Furthermore, the temperature control device includes a refrigeration module, a heating module and a fan.

[0010] Furthermore, the shell includes a bottom plate and a protective cover buckled on the bottom plate, and the conveyor belt, the mechanical loading platform, the laser interferometer and the autocollimator are all installed on the bottom plate.

[0011] Furthermore, the protective cover is made of transparent or translucent material.

[0012] Furthermore, two conveying windows are arranged opposite to each other on the protective cover, and two ends of the conveying belt are connected with the outside of the shell through the two conveying windows respectively.

[0013] An evaluation method using any of the above evaluation systems comprises the following steps: Step 1: Install the reflector assembly to be tested on the matching fixture, and convey it to the bottom of the automatic clamping assembly through the conveyor belt. Then the automatic clamping assembly works to grab the reflector assembly or the fixture with the reflector assembly installed, and place it on the mechanical loading platform between the relatively arranged laser interferometer and the autocollimator. This position is the position to be tested; Step 2: Start the mechanical loading platform and temperature control device to apply the preset mechanical and thermal coupling load to simulate the stress and thermal load in the actual working condition. At the same time, use the autocollimator to measure the angular deviation of the reflector assembly, use the laser interferometer to determine the displacement of the reflector assembly, the high-speed camera monitoring component to capture the slight deformation of the optical element, and the optical detection component to monitor the experimental process in real time. The collected data is analyzed by the central control system to determine the influence of the mechanical and thermal coupling effect on the stability of the reflector assembly; Step 3: After one reflector assembly begins to be inspected, repeat steps 1 to 2 to inspect another reflector assembly; Step 4: After the test is completed, the automatic clamping assembly takes out the reflector assembly and places it on the conveyor belt, which then sends it out of the shell.

[0014] Compared with the prior art, the present invention has the following effects: The reflector assembly mechanical and thermal coupling evaluation system based on in-situ detection of the present invention can accurately monitor the angle and position changes of one or more reflector assemblies fixed in place in a vibration environment simulating actual applications, and provide real-time data collection and analysis functions.

[0015] The in-situ detection-based mechanical and thermal coupling evaluation system for the reflector assembly of the present invention can simulate the stress and thermal load of the reflector assembly in actual working conditions by setting a mechanical loading platform and a temperature control device, realize multi-dimensional deformation synchronous monitoring, and thus accurately reflect the real performance of the reflector assembly under dynamic conditions; The in-situ detection-based mechanical and thermal coupling evaluation system for the reflector assembly of the present invention connects the conveyor belt, mechanical loading platform, automatic clamping assembly, laser interferometer, autocollimator, optical monitoring assembly and high-speed camera monitoring assembly with the central control system signal to realize automatic control and effectively improve the test repeatability; The in-situ detection-based mechanical and thermal coupling evaluation system for a reflector assembly of the present invention eliminates the need to disassemble and reinstall the reflector assembly, thereby greatly improving evaluation efficiency; and avoids the introduction of additional errors due to minor changes during the reinstallation process, thereby preventing the subsequent use of the reflector assembly from being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the mechanical and thermal coupling evaluation system of the reflector assembly based on in-situ detection of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the internal structure of the mechanical and thermal coupling evaluation system of the reflector assembly based on in-situ detection of the present invention (the protective cover is not shown); Figure 3 It is a top view schematic diagram of the mechanical and thermal coupling evaluation system of the reflector assembly based on in-situ detection of the present invention (the protective cover, optical monitoring assembly, high-speed camera monitoring assembly, automatic clamping assembly and slideway are not shown).

[0017] In the figure: 1. Central control system; 2. Shell; 201. Bottom plate; 202. Protective cover; 3. Conveyor belt; 4. Mechanical loading platform; 5. Automatic clamping assembly; 6. Laser interferometer; 7. Autocollimator; 8. Optical monitoring assembly; 9. High-speed camera monitoring assembly; 10. Fixture; 11. Positioning device; 12. Two-dimensional mobile platform; 13. All-round adjustment platform; 14. Slide; 15. Data acquisition card; 100. Reflector assembly. DETAILED DESCRIPTION

[0018] Specific implementation method 1: Combination Figure 1~Figure 3 This embodiment is explained, and the technical scheme in the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is only a part of the embodiment of the present invention, rather than all the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] It should be noted that the descriptions of the present invention regarding directions such as "front", "back", "left", "right", "inside", "outside", "left side", "right side", "upper", "lower", "top", "bottom", etc. are all defined based on the relationship between the orientations or positions shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. In the description of the present invention, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0020] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] A reflector assembly mechanical and thermal coupling evaluation system based on in-situ detection, comprising a central control system 1, a shell 2, a conveyor belt 3 arranged in the shell 2 and connected to the central control system 1 by signal, a mechanical loading platform 4, an automatic clamping component 5, a laser interferometer 6, an autocollimator 7, an optical monitoring component 8 and a high-speed camera monitoring component 9, wherein the conveyor belt 3 and the mechanical loading platform 4 are arranged in a T-shape in the horizontal direction, both ends of the conveyor belt 3 are connected to the outside of the shell 2, the automatic clamping component 5 is located above the mechanical loading platform 4 and is slidably installed on the top of the shell 2 along the length direction of the mechanical loading platform 4, and the laser interferometer 6 and the autocollimator 7 are arranged relatively Placed on both sides of the mechanical loading platform 4, the reflector assembly 100 is placed on the mechanical loading platform 4 between the laser interferometer 6 and the autocollimator 7 through a fixture 10, and the optical monitoring assembly 8 and the high-speed camera monitoring assembly 9 are both installed on the top of the shell 2 to achieve real-time monitoring of the experimental process and deformation monitoring of the reflector assembly 100. Vibration is applied to the optical system components through the mechanical loading platform 4. A temperature control device, a temperature measuring device and an air quality detection module connected to the central control system 1 by signal are also provided in the shell 2. The temperature control device provides a temperature environment for the optical system components, and the air quality detection module detects the cleanliness inside the shell.

[0022] The autocollimator 7 is mainly used to measure small angle deviations. It works on the principle of optical autocollimation, that is, light is emitted from the instrument, reflected by the reflector and returned to the detector inside the instrument. If there is a slight angular deviation in the reflector, this deviation will cause the position of the returning light to change, so that the angle deviation can be calculated. The specific method for calculating the angle deviation is prior art and will not be repeated here.

[0023] The laser interferometer 6 is a device for precise measurement based on the principle of laser interference. It uses the interference phenomenon of laser beams to measure distance changes or displacements. Its basic working principle is to divide a laser beam into two beams, which are propagated on different paths and then merged to produce interference fringes. By analyzing the changes in these interference fringes, the changes in the optical path difference between the two beams can be measured extremely accurately, and then the displacement of the object can be determined. The specific displacement analysis method is a prior art and will not be repeated here.

[0024] Vibration is applied by the mechanical loading platform 4 to simulate the vibration of the reflector assembly 100 in actual working conditions; the thermal load of the reflector assembly 100 in actual working conditions, such as the overall temperature of the environment or the local heating condition, is simulated by the temperature control device.

[0025] The experiment process of the reflector assembly 100 is monitored in real time by the optical monitoring assembly 8, wherein the optical monitoring assembly 8 includes an infrared temperature measuring device and a mounting structure for mounting the infrared temperature measuring device; The micro deformation of the reflector assembly 100 is captured by a high-speed camera monitoring assembly 9 , wherein the high-speed camera monitoring assembly 9 includes a high-speed camera and a mounting structure for mounting the high-speed camera.

[0026] The reflector assembly 100 to be evaluated is mounted on a matching fixture 10 , the specific structure of which is known in the prior art and will not be described in detail herein.

[0027] The reflector assembly mechanical and thermal coupling evaluation system based on in-situ detection of the present invention can also be provided with a data acquisition card 15 to improve multi-channel parallel monitoring, and transmit the signals monitored by each device (such as laser interferometer 6, autocollimator 7, optical monitoring component 8 or high-speed camera monitoring component 9) to the central control system 1 for processing to obtain relevant detection data.

[0028] The temperature measuring device is a conventional device capable of realizing temperature measurement, such as a temperature sensor.

[0029] The temperature control device is non-contact type.

[0030] The in-situ detection-based mechanical-thermal coupling evaluation system for a reflector assembly of the present invention can accurately monitor the angle and position changes of one or more reflector assemblies 100 fixed in place in a vibration environment simulating actual applications, and provide real-time data collection and analysis functions.

[0031] The mechanical-thermal coupling evaluation system of the reflector assembly based on in-situ detection of the present invention can simulate the stress and thermal load of the reflector assembly 100 in actual working conditions by setting a mechanical loading platform 4 and a temperature control device, realize multi-dimensional deformation synchronous monitoring, and thus can accurately reflect the real performance of the reflector assembly 100 under dynamic conditions; The in-situ detection-based mechanical and thermal coupling evaluation system for the reflector assembly of the present invention connects the conveyor belt 3, the mechanical loading platform 4, the automatic clamping assembly 5, the laser interferometer 6, the autocollimator 7, the optical monitoring assembly 8 and the high-speed camera monitoring assembly 9 to the central control system 1 signal to realize automatic control and effectively improve the test repeatability; The in-situ detection-based mechanical-thermal coupling evaluation system for a reflector assembly of the present invention eliminates the need to disassemble and reinstall the reflector assembly 100, thereby greatly improving evaluation efficiency; and avoids the introduction of additional errors due to minor changes during the reinstallation process, thereby preventing the subsequent use of the reflector assembly 100 from being affected.

[0032] A positioning device 11 is also provided inside the housing 2. The positioning device 11 is located above the conveyor belt 3 or on the side of the conveyor belt 3 away from the mechanical loading platform 4, and the positioning device 11 is arranged along the extension line of the mechanical loading platform 4. In this design, the positioning device 11 is provided to detect the conveying position of the reflector assembly 100 to be tested. When the reflector assembly 100 to be tested is transported to the front of the positioning device 11 via the conveyor belt 3, the positioning device 11 detects the reflector assembly 100 to be tested, at which time the conveyor belt 3 stops moving, the automatic clamping assembly 5 works, grabs the reflector assembly 100 or the fixture 10 with the reflector assembly 100 installed, and places it at the position to be tested.

[0033] The laser interferometer 6 and the autocollimator 7 are both mounted on the bottom of the housing 2 through a two-dimensional mobile platform 12 to adjust the test position of the reflector assembly 100. With such a design, the two-dimensional mobile platform 12 can be used to adjust the angles of the laser interferometer 6 and the autocollimator 7 in the up, down, left, and right directions, thereby adjusting the test position of the reflector assembly 100. The two-dimensional mobile platform 12 includes a longitudinal angle adjustment component and a transverse angle adjustment component, and the longitudinal angle adjustment component is used to adjust the angle of the laser interferometer 6 or the autocollimator 7 in the up and down directions, and the transverse angle adjustment component is used to adjust the angle of the laser interferometer 6 or the autocollimator 7 in the left and right directions.

[0034] The longitudinal angle adjustment component and the transverse angle adjustment component are fixedly connected up and down as a whole. Specifically, the longitudinal angle adjustment component is fixed on the transverse angle adjustment component, or the transverse angle adjustment component is fixed on the longitudinal angle adjustment component. The specific structures of the longitudinal angle adjustment component and the transverse angle adjustment component are prior arts and are not described here in detail. For example, the first mounting plate can be driven by the horizontally arranged drive motor output shaft to achieve up and down swinging, thereby driving the equipment (such as laser interferometer 6, autocollimator 7 or transverse angle adjustment component) fixed on the first mounting plate to adjust the angle in the up and down directions. The second mounting plate can be driven by the vertically arranged drive motor output shaft to achieve left and right swinging, thereby driving the equipment (such as laser interferometer 6, autocollimator 7 or longitudinal angle adjustment component) fixed on the second mounting plate to adjust the angle in the left and right directions.

[0035] The optical monitoring assembly 8 and the high-speed camera monitoring assembly 9 are respectively installed on the top of the housing 2 through the omnidirectional adjustment platform 13 to adjust the monitoring angle of the optical monitoring assembly 8 and the high-speed camera monitoring assembly 9. With such a design, the omnidirectional adjustment platform 13 can be used to adjust the monitoring angle of the optical monitoring assembly 8 and the high-speed camera monitoring assembly 9, i.e., circumferential rotation adjustment and pitch position adjustment, so as to achieve comprehensive monitoring of the reflector assembly 100. The specific structure of the omnidirectional angle adjustment platform is prior art and will not be described in detail here.

[0036] A slide 14 is installed on the top of the shell 2. The slide 14 is located directly above the mechanical loading platform 4 and one end of which extends to the top of the conveyor belt 3. A linear displacement sensor is installed on the slide 14, and the linear displacement sensor is connected to the central control system 1 by signal. With such a design, the current position of the automatic clamping component 5 is recorded in real time by the linear displacement sensor. The linear displacement sensor can be a bar-shaped photosensitive element, and a laser emitting unit is installed on the automatic clamping component 5 to accurately monitor the current position. One or more positioning positions are determined in advance by the linear displacement sensor. When the automatic clamping component 5 moves to the positioning position, it stops moving and places the clamped reflector assembly 100 to be tested on the mechanical loading platform 4. The number of positioning positions is set as needed, and laser interferometers 6 and autocollimators 7 are arranged on both sides of the mechanical loading platform 4 directly below each positioning position, so as to realize the force stability evaluation of multiple reflector assemblies 100 at the same time through an evaluation system.

[0037] The temperature control device includes a cooling module, a heating module and a fan. With such a design, the temperature inside the housing 2 is adjusted by the cooling module and the heating module to provide a temperature environment for the reflector assembly 100, and the fan plays a certain role in cooling down. At the same time, an air quality detection module is also provided inside the housing. When the detection system is not in operation, the dust level inside the housing is detected by the air quality detection module. When dust is detected, the fan is started to clean the dust to ensure the cleanliness of the inside of the detection system.

[0038] The housing 2 includes a bottom plate 201 and a protective cover 202 mounted on the bottom plate 201. The conveyor belt 3, the mechanical loading platform 4, the laser interferometer 6 and the autocollimator 7 are all mounted on the bottom plate 201. The protective cover 202 can be made of transparent, translucent or opaque material, and its main purpose is to provide a protective environment for the various detection devices inside it.

[0039] The protective cover 202 is made of transparent or translucent material, such as acrylic plate or glass, so as to facilitate observation of the internal situation of the protective cover 202.

[0040] Two conveying windows are oppositely formed on the protective cover 202 , and two ends of the conveying belt 3 are connected to the outside of the shell 2 through the two conveying windows.

[0041] An evaluation method using any of the above evaluation systems comprises the following steps: Step 1: Install the reflector assembly 100 to be tested on the matching jig 10, and convey it to the bottom of the automatic clamping assembly 5 through the conveyor belt 3, then the automatic clamping assembly 5 works, grabs the reflector assembly 100 or the jig 10 with the reflector assembly 100 installed, and places it on the mechanical loading platform 4 between the relatively arranged laser interferometer 6 and the autocollimator 7, which is the position to be tested; the jig 10 with the reflector assembly 100 installed is first placed at one end of the conveyor belt 3, and then conveyed through the conveyor belt 3. When it is conveyed to the front of the positioning device 11, the positioning device 11 detects the jig 10, the conveyor belt 3 stops, the automatic clamping assembly 5 starts, and places the reflector assembly 100 to the position to be tested along the slide 14. The position to be tested can be determined in advance by the linear displacement sensor on the slide 14, which can be one or more positions to be tested.

[0042] Step 2: Start the mechanical loading platform 4 and the temperature control device to apply a preset mechanical and thermal coupling load to simulate the stress and thermal load conditions in actual working conditions. At the same time, use the autocollimator 7 to measure the angular deviation of the reflector assembly 100, use the laser interferometer 6 to determine the displacement of the reflector assembly 100, and the high-speed camera monitoring assembly 9 to capture the slight deformation of the optical element. The optical detection assembly monitors the experimental process in real time. The collected data is analyzed by the central control system 1 to determine the influence of the mechanical and thermal coupling effect on the stability of the reflector assembly 100; Step 3: After one reflector assembly 100 is inspected, repeat steps 1 to 2 to inspect another reflector assembly 100; Step 4: After the test is completed, the automatic clamping assembly 5 is actuated to take out the reflector assembly 100 and place it on the conveyor belt 3 , which then delivers it out of the housing 2 .

[0043] After the detection is completed, the signal is transmitted to the central control system 1 through the data acquisition card 15. The central control system 1 controls the movement of the two-dimensional mobile platform 12 to adjust the center position of the lens of the reflector assembly 100, the center of the laser interferometer 6 and the center of the autocollimator 7 to coincide with each other, and perform a calibration test of the initial position. Then, the actual working condition of mechanical vibration is simulated by force, and the force load is applied. The vibration amount is monitored in real time to detect the vibration stability of the reflector assembly 100, and the high-speed camera monitoring component 9 is used to monitor the subtle and slow deformation process, and the optical monitoring component 8 is used to monitor the experimental process in real time (the high-speed camera monitoring component 9 and the optical monitoring component 8 can both roll and pitch to perform 360° comprehensive monitoring). After a reflector assembly 100 is detected, the central control system 1 controls the automatic clamping component 5 to place the detected reflector assembly 100 on the conveyor belt 3. After the positioning device 11 detects the reflector assembly 100, the conveyor belt 3 is started to send out the reflector assembly 100, and the automatic clamping component 5 then sends out another assembly. The electrical connection interface of the aviation plug is opened on the shell 2 to facilitate internal and external connections.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mechanical and thermal coupling evaluation system for a reflector assembly based on in-situ detection, characterized in that: The invention comprises a central control system (1), a shell (2), a conveyor belt (3) arranged in the shell (2) and connected to the central control system (1) by signal, a mechanical loading platform (4), an automatic clamping component (5), a laser interferometer (6), an autocollimator (7), an optical monitoring component (8) and a high-speed camera monitoring component (9), wherein the conveyor belt (3) and the mechanical loading platform (4) are arranged in a T-shape in the horizontal direction, both ends of the conveyor belt (3) are connected to the outside of the shell (2), the automatic clamping component (5) is located above the mechanical loading platform (4) and is slidably mounted on the top of the shell (2) along the length direction of the mechanical loading platform (4), and the laser interferometer (6) and the autocollimator (7) are arranged relatively on the mechanical loading platform (4). On both sides of the loading platform (4), the reflector assembly (100) is placed on the mechanical loading platform (4) between the laser interferometer (6) and the autocollimator (7) through a fixture (10); the optical monitoring assembly (8) and the high-speed camera monitoring assembly (9) are both installed on the top of the shell (2) to achieve real-time monitoring of the experimental process and deformation monitoring of the reflector assembly (100); vibration is applied to the optical system assembly through the mechanical loading platform (4); a temperature control device, a temperature measuring device and an air quality detection module connected to the central control system (1) are also arranged in the shell (2); a temperature environment is provided for the optical system assembly through the temperature control device, and the cleanliness of the interior of the shell is detected through the air quality detection module.

2. The mechanical and thermal coupling evaluation system of a reflector assembly based on in-situ detection according to claim 1, characterized in that: A positioning device (11) is also provided inside the housing (2), and the positioning device (11) is located above the conveyor belt (3) or on a side of the conveyor belt (3) away from the mechanical loading platform (4), and the positioning device (11) is arranged along the extension line of the mechanical loading platform (4).

3. The mechanical and thermal coupling evaluation system of a reflector assembly based on in-situ detection according to claim 1, characterized in that: The laser interferometer (6) and the autocollimator (7) are both mounted on the bottom of the housing (2) via a two-dimensional moving platform (12) to achieve adjustment of the test position of the reflector assembly (100).

4. The mechanical and thermal coupling evaluation system of a reflector assembly based on in-situ detection according to claim 1, characterized in that: The optical monitoring component (8) and the high-speed camera monitoring component (9) are respectively installed on the top of the housing (2) via an omnidirectional adjustment platform (13), thereby achieving adjustment of the monitoring angles of the optical monitoring component (8) and the high-speed camera monitoring component (9).

5. The mechanical and thermal coupling evaluation system of a reflector assembly based on in-situ detection according to claim 1, characterized in that: A slideway (14) is installed on the top of the shell (2). The slideway (14) is located directly above the mechanical loading platform (4) and one end of the slideway (14) extends above the conveyor belt (3). A linear displacement sensor is installed on the slideway (14). The linear displacement sensor is connected to the central control system (1) by signal.

6. The mechanical and thermal coupling evaluation system of a reflector assembly based on in-situ detection according to claim 1, characterized in that: The temperature control device includes a refrigeration module, a heating module and a fan.

7. The mechanical and thermal coupling evaluation system of a reflector assembly based on in-situ detection according to claim 1, characterized in that: The housing (2) comprises a base plate (201) and a protective cover (202) mounted on the base plate (201); the conveyor belt (3), the mechanical loading platform (4), the laser interferometer (6) and the autocollimator (7) are all mounted on the base plate (201).

8. The mechanical and thermal coupling evaluation system of a reflector assembly based on in-situ detection according to claim 7, characterized in that: The protective cover (202) is made of transparent or translucent material.

9. The reflector assembly mechanical and thermal coupling evaluation system based on in-situ detection according to claim 7, characterized in that: Two conveying windows are provided opposite to each other on the protective cover (202), and the two ends of the conveying belt (3) are connected to the outside of the shell (2) through the two conveying windows.

10. A method for evaluating the mechanical and thermal coupling of a reflector assembly based on in-situ detection, characterized in that: The reflector assembly mechanical and thermal coupling evaluation system based on in-situ detection as described in any one of claims 1 to 9 above comprises the following steps: Step 1: The reflector assembly (100) to be tested is mounted on a matching fixture (10), and is conveyed to the bottom of the automatic clamping assembly (5) via a conveyor belt (3); the automatic clamping assembly (5) then operates to grab the reflector assembly (100) or the fixture (10) on which the reflector assembly (100) is mounted, and is placed on a mechanical loading platform (4) between a laser interferometer (6) and an autocollimator (7) that are arranged opposite to each other; this position is the position to be tested; Step 2: Start the mechanical loading platform (4) and the temperature control device to apply a preset mechanical and thermal coupling load to simulate the stress and thermal load conditions in actual working conditions. At the same time, use the autocollimator (7) to measure the angular deviation of the reflector assembly (100), use the laser interferometer (6) to determine the displacement of the reflector assembly (100), use the high-speed camera monitoring assembly (9) to capture the slight deformation of the optical element, and use the optical detection assembly to monitor the experimental process in real time. The collected data is analyzed by the central control system (1) to determine the influence of the mechanical and thermal coupling effect on the stability of the reflector assembly (100); Step 3: After one reflector assembly (100) begins to be inspected, repeat steps 1 to 2 to inspect another reflector assembly (100); Step 4: After the test is completed, the automatic clamping assembly (5) is actuated to take out the reflector assembly (100) and place it on the conveyor belt (3), which then delivers it out of the housing (2).

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