A flat panel automated clamping and phased array ultrasonic testing device and method

Abstract

The application belongs to the technical field of composite material ultrasonic nondestructive testing, and relates to a flat plate automatic clamping and phased array ultrasonic testing device, which comprises an automatic clamping module, a phased array ultrasonic testing module and an automatic control module, the automatic control module is electrically connected with the automatic clamping module and the phased array ultrasonic testing module, and the phased array ultrasonic testing module is arranged directly above the automatic clamping module. During testing, first, the composite material flat plate is placed on the flat plate supporting step, then the automatic clamping module is controlled to complete positioning and clamping of the composite material flat plate, and then the phased array ultrasonic testing module performs phased array ultrasonic testing on the composite material flat plate, and sends testing data to an ultrasonic data analysis system; the ultrasonic data analysis system analyzes the testing data to determine the quality of the composite material flat plate. The device realizes automatic clamping and automatic testing of the composite material flat plate, and has the advantages of simple working principle, safe use and superior performance.

Description

Technical Field

[0001] This application belongs to the field of ultrasonic nondestructive testing technology for composite materials, and specifically relates to an automated clamping and phased array ultrasonic testing device and method for composite material flat plates. Background Technology

[0002] Quantitative characterization of impact damage in composite plates is a fundamental and crucial step in determining allowable design values ​​and modular strength assessment of composite materials. Ultrasonic nondestructive testing (NDT) is currently the primary method for quantitative characterization of impact damage in composite plates. At present, quantitative characterization of impact damage in composite plates is mainly achieved through manual A-scan and C-scan methods to obtain quantitative data such as the impact damage area and profile range. However, the small size of composite plates, the long setup cycle of manual ultrasonic testing, low testing efficiency, poor repeatability and reliability, and high testing costs have become technical bottlenecks affecting the effective implementation of impact damage assessment and residual compressive strength testing for composite plates. Against this background, considering the size, thickness, damage characteristics, and ultrasonic testing requirements of composite plates, an automated clamping and phased array testing device for composite plates was designed. Summary of the Invention

[0003] The purpose of this application is to provide an automated flat plate clamping and phased array ultrasonic testing device and method to solve the problems of poor reliability and low efficiency in the existing manual ultrasonic testing of composite materials.

[0004] The technical solution of this application is: an automated clamping and phased array ultrasonic testing device and method for a flat plate, comprising an automated clamping module, a phased array ultrasonic testing module, and an automated control module. The automated control module is electrically connected to the automated clamping module and the phased array ultrasonic testing module. The phased array ultrasonic testing module is located directly above the automated clamping module. The automated clamping module is used to clamp the composite material flat plate. The automated clamping module includes a support frame, an automatic retraction module, and a support clamping module. The automatic retraction module and the support clamping module are both located on the support frame. The automatic retraction module is connected to the support frame and includes two symmetrically arranged output ends. There are two sets of support clamping modules, and the two sets of support clamping modules are respectively connected to the two output ends of the automatic retraction module. The support clamping module includes a flat plate support step and a thickness adjustment plate. The thickness adjustment plate slides and engages with the flat plate support step and is located on the outside of the flat plate support step. The composite material flat plate is placed on the flat plate support step. The thickness adjustment plate can be adjusted to exceed the height of the composite material flat plate and limit and clamp the platform support step.

[0005] Preferably, the platform support step is provided with a horizontal support platform at the top, and a threaded hole is provided at the center of the horizontal support platform; the thickness adjustment plate is provided with an internally threaded connecting lug in the middle, and an internal hexagon bolt is threadedly connected between the threaded hole on the horizontal support platform and the internally threaded connecting lug on the thickness adjustment plate; a vertically arranged slide rail is fixedly connected to the side wall of the platform support step, and a first slider that slides and engages with the slide rail is fixedly connected to the side wall of the thickness adjustment plate.

[0006] Preferably, the thickness adjustment plate has an indicator hole on its side wall, and an indicator is provided on the plate support step. The indicator passes through the indicator hole and extends to the outside of the thickness adjustment plate. The outer wall of the thickness adjustment plate has vertically set scales, and the tip of the indicator points to the scale position.

[0007] Preferably, the thickness adjustment plate has a clamping groove on the side wall near the flat plate support step, and a clamping buffer pad is provided on the clamping groove. The clamping buffer pad is an elastic element.

[0008] Preferably, the automatic retraction module includes a pneumatic actuator, an air inlet valve, a clamping retraction rod, a telescopic plate, and a positioning sensor; the pneumatic actuator is mounted on a support frame, the clamping retraction rod consists of two sets located at both ends of the pneumatic actuator and can extend and retract under the action of the pneumatic actuator, the telescopic plate consists of two sets connected to both ends of the clamping retraction rod, the air inlet valve is connected to the inside of the pneumatic actuator, and the positioning sensor is located above the middle of the pneumatic actuator.

[0009] Preferably, the automatic retraction module includes a second guide rail, a second slider, and a connecting plate; the second guide rail is disposed on the support frame and is horizontally arranged along the movement direction of the flat plate support step; there are two sets of the second slider and the connecting plate, and each set of the connecting plate is connected between a set of the second slider and the flat plate support step.

[0010] Preferably, the support frame is provided with a base plate and left and right adjustment plates. There are two sets of base plates, which are arranged horizontally side by side. There are two sets of left and right adjustment plates, which are arranged vertically at both ends of the base plate. The left and right adjustment plates can be connected to different positions along the length of the base plate.

[0011] Preferably, a water tank is provided below the support frame.

[0012] Preferably, the phased array ultrasonic detection module includes a three-dimensional frame, a second base, a first robotic arm, a connecting rod, and a porous ultrasonic transducer; the second base is disposed on the three-dimensional frame, the first robotic arm is connected to the second base, the connecting rod is connected between the porous ultrasonic transducer and the end of the first robotic arm, the porous ultrasonic transducer is disposed directly above the automated clamping module, and a porous water jet coupling wedge is provided at the end of the porous ultrasonic transducer; the automated control module includes an automated clamping control system, a robotic arm control system, and an ultrasonic data analysis system, the automated clamping control system is electrically connected to the automated clamping module, the robotic arm control system is electrically connected to the robotic arm, and the automated ultrasonic control system is electrically connected to the porous ultrasonic transducer and is capable of receiving the detection signal from the porous ultrasonic transducer.

[0013] As one specific implementation, a method for automated clamping and phased array ultrasonic testing of a flat plate, employing the aforementioned apparatus, includes:

[0014] Step 1: Set the parameters of the composite material plate automated clamping module and the phased array ultrasonic detection and control module. The automatic clamping cycle is t1 seconds. The robotic arm equipped with the phased array ultrasonic transducer scans the motion path and time t2.

[0015] Step 2: Measure the thickness of the composite material plate test specimen and calculate the height that the composite material plate should exceed the thickness adjustment plate of the plate support.

[0016] Step 3: Place the composite material plate to be tested. According to the thickness of the composite material plate, turn the fully threaded adjusting bolt to adjust the height difference between the plate support thickness adjustment plate and the plate support step. At the same time, observe the position of the indicator needle to ensure that the composite material plate is slightly higher than the thickness adjustment plate.

[0017] Step 4: Perform automated clamping, automated detection, ultrasonic acquisition, storage, and data analysis;

[0018] Step 5: Remove the composite material plate that has been tested and place the next composite material plate to be tested;

[0019] Step Six: Repeat steps three through five to proceed to the next composite material plate to be tested.

[0020] This application discloses an automated clamping and phased array ultrasonic testing device for composite material plates, comprising an automated clamping module, a phased array ultrasonic testing module, and an automated control module. The automated control module is electrically connected to the automated clamping module and the phased array ultrasonic testing module. The phased array ultrasonic testing module is positioned directly above the automated clamping module and is used to clamp the composite material plate. During testing, the composite material plate is first placed on a plate support step. Then, the automated retraction module is controlled to position and clamp the composite material plate. Subsequently, the phased array ultrasonic testing module performs phased array ultrasonic testing on the composite material plate and sends the test data to an ultrasonic data analysis system. The ultrasonic data analysis system analyzes the test data to determine the quality of the composite material plate. This device achieves automated clamping and automated testing of damage to composite material plates. The device has a simple working principle, is safe to use, and has superior performance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions provided in this application, the accompanying drawings will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application.

[0022] Figure 1 This is a schematic diagram of the overall structure of this application;

[0023] Figure 2 This is a schematic diagram of the phased array ultrasonic testing module structure of this application;

[0024] Figure 3 This is a schematic diagram of the automated clamping module structure of this application;

[0025] Figure 4 This is a schematic diagram of the flat plate support stepped structure of this application;

[0026] Figure 5 This is an isometric drawing of the thickness adjustment plate in this application;

[0027] Figure 6 This is a rear view of the thickness adjustment plate in this application;

[0028] Figure 7 This is a schematic diagram of the driver section of the automatic take-up and take-down module in this application;

[0029] Figure 8 This is a schematic diagram of the guide section of the automatic retraction module in this application.

[0030] 1. Phased array ultrasonic detection module; 2. Automated clamping module; 3. Three-dimensional frame; 4. Second base; 5. First robotic arm; 6. Connecting rod; 7. Multi-hole ultrasonic transducer; 8. Support platform; 9. Flat plate support step; 10. Thickness adjustment plate; 11. Internal threaded connecting lug; 12. Hex socket head cap screw; 13. Slide rail; 14. First slider; 15. Indicator; 16. Clamping buffer pad; 17. Pneumatic actuator; 18. Air inlet valve; 19. Clamping movement retraction rod; 20. Telescopic plate; 21. Positioning sensing sensor; 22. Second guide rail; 23. Second slider; 24. Connecting plate; 25. Base plate; 26. Left and right adjustment plate; 27. Water tank; 28. Composite material flat plate; 29. ​​Horizontal support platform. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings.

[0032] An automated flat plate clamping and phased array ultrasonic testing device, such as Figure 1-2 As shown, it includes an automated clamping module 2, a phased array ultrasonic testing module 1, and an automated control module. The automated control module is electrically connected to the automated clamping module 2 and the phased array ultrasonic testing module 1. The phased array ultrasonic testing module 1 is located directly above the automated clamping module 2. The automated clamping module 2 is used to clamp the composite material plate 28.

[0033] The phased array ultrasonic testing module 1 includes a three-dimensional frame 3, a second base 4, a first robotic arm 5, a connecting rod 6, and a porous ultrasonic transducer 7. The second base 4 is located on the three-dimensional frame 3, the first robotic arm 5 is connected to the second base 4, the connecting rod 6 is connected between the porous ultrasonic transducer 7 and the end of the first robotic arm 5, the porous ultrasonic transducer 7 is located directly above the automated clamping module 2, and a porous water spray coupling wedge is provided at the end of the porous ultrasonic transducer 7.

[0034] The first robotic arm 5, equipped with a phased array ultrasonic transducer, can perform automatic path planning through an automated control module. The motion speed of the end effector can be set, with a maximum motion speed of not less than 150 mm / s and a maximum load of not less than 5 kg at the end effector.

[0035] The automated control module includes an automated clamping control system, a robotic arm control system, and an ultrasonic data analysis system. The automated clamping control system is electrically connected to the automated clamping module 2, the robotic arm control system is electrically connected to the robotic arm, and the automated ultrasonic control system is electrically connected to the porous ultrasonic transducer 7 and can receive the detection signal from the porous ultrasonic transducer 7.

[0036] Combination Figure 3The automated clamping module 2 includes a support frame 8, an automatic retraction module, and a support clamping module. The automatic retraction module and the support clamping module are both located on the support frame 8. The support frame 8 is inserted into the four grooves of the phased array ultrasonic testing three-dimensional frame 3 through four pillars to achieve a stable connection.

[0037] The automatic retraction module is connected to the support frame 8 and includes two symmetrically arranged output ends. There are two sets of support clamping modules, and the two sets of support clamping modules are respectively connected to the two output ends of the automatic retraction module.

[0038] The support and clamping module includes a flat plate support step 9 and a thickness adjustment plate 10. The thickness adjustment plate 10 slides with the flat plate support step 9 and is located on the outside of the flat plate support step 9. The composite material flat plate 28 is placed on the flat plate support step 9. The thickness adjustment plate 10 can be adjusted to a height exceeding that of the composite material flat plate 28 and limit and clamp the platform support step.

[0039] This application enables automated clamping and phased array ultrasonic testing of composite material flat plates 28 with a width of 100mm, a length of 150mm, and a thickness of 1-20mm.

[0040] During testing, the two output ends of the automatic take-up and take-down module are first moved outward according to the length of the composite material plate 28 until the distance between the two thickness adjustment plates 10 is slightly greater than the length of the composite material plate 28. The composite material plate 28 is then placed on the plate support step 9. The two output ends of the automatic take-up and take-down module are then moved inward until the side walls of the two thickness adjustment plates 10 abut against the composite material plate 28, thus completing the positioning and clamping of the composite material plate 28.

[0041] After clamping, the phased array ultrasonic testing module 1 performs phased array ultrasonic testing on the composite material plate 28. Specifically, the robotic arm control system of the automation control module plans the movement path of the first robotic arm 5 and controls the first robotic arm 5 to move according to the planned path until the porous ultrasonic transducer 7 moves to the designated position above the composite material plate 28. During this process, the automation control system controls the porous ultrasonic transducer 7 to work, perform real-time testing on the composite material plate 28, and sends the test data to the ultrasonic data analysis system. The ultrasonic data analysis system analyzes the test data and determines the quality of the composite material plate 28.

[0042] After one composite material plate 28 is inspected, the composite material plate 28 is removed, and the next composite material plate 28 is placed on the plate support step 9 according to the above process, and the next composite material plate 28 is inspected, until all composite material plates 28 are inspected.

[0043] This design enables automated clamping and detection of damage to composite material plates 28. The device boasts a simple working principle, safe operation, and superior performance, significantly improving the efficiency, reliability, and repeatability of damage detection for composite material plates 28, shortening the detection cycle, and reducing detection costs. Furthermore, this design provides a novel approach for designing automated clamping devices and planning automated detection scanning paths for batch production of composite material plates 28 with different configurations. It addresses the automated detection needs of composite material plates 28 of varying specifications, supporting the determination of allowable design values ​​and damage assessment for composite material structures.

[0044] Combination Figure 4-5 Preferably, a horizontal support platform 29 is provided at the top of the platform support step, and a threaded hole is opened at the center of the horizontal support platform 29; an internally threaded connecting lug 11 is provided in the middle of the thickness adjustment plate 10, and an internal hexagon bolt 12 is threadedly connected between the threaded hole on the horizontal support platform 29 and the internally threaded connecting lug 11 on the thickness adjustment plate 10; a vertically arranged slide rail 13 is fixedly connected to the side wall of the platform support step, and a first slider 14 that slides and engages with the slide rail 13 is fixedly connected to the side wall of the thickness adjustment plate 10. Due to the mutual limiting between the plate support step 9 and the thickness adjustment plate 10, the thickness adjustment plate 10 can be raised and lowered by rotating the internal hexagon bolt 12 under the action of the thread, thereby realizing the stable clamping of composite material plates 28 of different thicknesses. The slide rail 13 can guide the thickness adjustment plate 10 and prevent the thickness adjustment plate 10 from deviating during movement.

[0045] All 12 socket head cap screws are made of titanium alloy and are fully threaded bolts, while the other connecting bolts are countersunk.

[0046] Combination Figure 6 Preferably, an indicator hole is provided on the side wall of the thickness adjustment plate 10, and an indicator 15 is provided on the plate support step 9. The indicator 15 passes through the indicator hole and extends to the outside of the thickness adjustment plate 10. A vertically set scale is provided on the outer wall of the thickness adjustment plate 10, and the tip of the indicator 15 points to the scale position. When the thickness adjustment plate 10 is raised or lowered, it is convenient to directly determine whether the current position of the thickness adjustment plate 10 has reached the designated position by observing the scale pointed to by the indicator 15.

[0047] The scale range is 1-10mm, and the adjustment accuracy is 1mm.

[0048] Preferably, the thickness adjustment plate 10 has a clamping groove on its side wall near the flat plate support step 9, and a clamping buffer pad 16 is provided on the clamping groove. The clamping buffer pad 16 is an elastic element. The clamping buffer pad 16 can reduce the friction between the thickness adjustment plate 10 and the composite material flat plate 28 and improve the clamping stability.

[0049] Combination Figure 7 Preferably, the automatic retraction module includes a pneumatic actuator 17, an air inlet valve 18, a clamping retraction rod 19, a telescopic plate 20, and a positioning sensor 21. The pneumatic actuator 17 is mounted on the support frame 8. Two sets of clamping retraction rods 19 are located at both ends of the pneumatic actuator 17 and can extend and retract under the drive of the pneumatic actuator 17. Two sets of telescopic plates 20 are connected to both ends of the clamping retraction rods 19. The air inlet valve 18 is connected internally to the pneumatic actuator 17. The positioning sensor 21 is located above the center of the pneumatic actuator 17, and a warning light is installed on the pneumatic actuator 17. The pneumatic actuator 17 uses a pressurized airflow drive, and the automatic clamping cycle can be set as needed.

[0050] The pneumatic actuator 17 drives the clamping telescopic rod to extend and retract, thereby causing the telescopic plate 20 to extend and retract, thus adjusting the clamping position of the thickness adjustment plate 10.

[0051] The positioning sensor 21 senses the position and orientation of the composite material plate 28 through changes in magnetic force, displays whether the orientation is good through an indicator light, and controls the clamping action of the automated clamping module 2.

[0052] Combination Figure 8 Preferably, the automatic retraction module includes a second guide rail 22, a second slider 23, and a connecting plate 24. The second guide rail 22 is mounted on the support frame 8 and is horizontally arranged along the movement direction of the flat plate support step 9. There are two sets of the second slider 23 and the connecting plate 24, and each set of the connecting plate 24 is connected between a set of second sliders 23 and the flat plate support step 9. When the telescopic plate 20 moves the thickness adjustment plate 10, the thickness adjustment plate 10 simultaneously drives the second slider 23 to slide on the second guide rail 22 through the connecting plate 24, thereby providing support and guidance for the other side of the thickness adjustment plate 10.

[0053] Preferably, the support frame 8 is provided with a base plate 25 and left and right adjustment plates 26. There are two sets of base plates 25, which are arranged horizontally side by side. There are also two sets of left and right adjustment plates 26, which are arranged vertically at both ends of the base plate 25. The left and right adjustment plates 26 can be connected to different positions along the length of the base plate 25. The left and right positions of the automatic take-up and take-down module can be adjusted by the cooperation of the left and right adjustment plates 26 and the base plate 25.

[0054] Preferably, a water tank 27 is provided below the support frame 8. When the porous ultrasonic transducer 7 works in conjunction with the porous water jet coupling wedge, water will be sprayed out in large quantities as the ultrasonic detection medium, and the water tank 27 will collect the falling water.

[0055] As one specific implementation, it also includes a method for automated clamping of a flat plate and phased array ultrasonic testing, comprising:

[0056] Step 1: Set the parameters of the composite material plate 28 automated clamping module 2 and the phased array ultrasonic detection and control module. The automatic clamping cycle is t1 seconds. The robotic arm equipped with the phased array ultrasonic transducer scans the motion path and time t2.

[0057] Step 2: Measure the thickness of the composite material plate 28 test piece and calculate the height that the composite material plate 28 should exceed the plate support thickness adjustment plate 10.

[0058] Step 3: Place the composite material plate 28 to be tested. According to the thickness of the composite material plate 28, turn the fully threaded adjusting bolt to adjust the height difference between the plate support thickness adjustment plate 10 and the plate support step 9. At the same time, observe the position of the indicator needle to ensure that the composite material plate 28 is slightly higher than the thickness adjustment plate 10.

[0059] Step 4: Perform automated clamping, automated detection, ultrasonic acquisition, storage, and data analysis;

[0060] Step 5: Remove the composite material plate 28 that has been tested and place the next composite material plate 28 to be tested;

[0061] Step Six: Repeat steps three through five to proceed to the next composite material plate 28 to be tested.

[0062] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A flat plate automated clamping and phased array ultrasonic testing device, characterized in that: The system includes an automated clamping module (2), a phased array ultrasonic testing module (1), and an automated control module. The automated control module is electrically connected to the automated clamping module (2) and the phased array ultrasonic testing module (1). The phased array ultrasonic testing module (1) is located directly above the automated clamping module (2). The automated clamping module (2) is used to clamp the composite material plate (28). The automated clamping module (2) includes a support frame (8), an automatic retraction module, and a support clamping module. The automatic retraction module and the support clamping module are both located on the support frame (8). The automatic retraction module is connected to the support frame (8) and... The automatic retraction module includes two symmetrically arranged output ends. There are two sets of support and clamping modules, and the two sets of support and clamping modules are respectively connected to the two output ends of the automatic retraction module. The support and clamping module includes a flat plate support step (9) and a thickness adjustment plate (10). The thickness adjustment plate (10) slides with the flat plate support step (9) and is located on the outside of the flat plate support step (9). The composite material plate (28) is placed on the flat plate support step (9). The thickness adjustment plate (10) can be adjusted to exceed the height of the composite material plate (28) and limit and clamp the flat plate support step (9). The thickness adjustment plate (10) has an indicator hole on its side wall, and the plate support step (9) has an indicator (15). The indicator (15) passes through the indicator hole and extends to the outside of the thickness adjustment plate (10). The outer wall of the thickness adjustment plate (10) has a vertically set scale, and the tip of the indicator (15) points to the scale position. The automatic retraction module includes a pneumatic actuator (17), an air inlet valve (18), a clamping retraction rod (19), a telescopic plate (20), and a positioning sensor (21). The pneumatic actuator (17) is mounted on a support frame (8). There are two sets of clamping retraction rods (19), which are respectively located at both ends of the pneumatic actuator (17) and can extend and retract under the drive of the pneumatic actuator (17). There are two sets of telescopic plates (20), which are respectively connected to both ends of the clamping retraction rods (19). The air inlet valve (18) is connected to the inside of the pneumatic actuator (17). The positioning sensor (21) is located above the middle part of the pneumatic actuator (17). The automatic take-up and take-down module includes a second guide rail (22), a second slider (23), and a connecting plate (24); the second guide rail (22) is mounted on the support frame (8) and is horizontally arranged along the movement direction of the flat plate support step (9); there are two sets of the second slider (23) and the connecting plate (24), and each set of the connecting plate (24) is connected between a set of second sliders (23) and the flat plate support step (9); The support frame (8) is provided with a base plate (25) and left and right adjustment plates (26). There are two sets of base plates (25) and the two sets of base plates (25) are arranged horizontally side by side. There are two sets of left and right adjustment plates (26) and the two sets of left and right adjustment plates (26) are arranged vertically at both ends of the base plate (25). The left and right adjustment plates (26) can be connected to different positions in the length direction of the base plate (25). The phased array ultrasonic testing module (1) includes a three-dimensional frame (3), a second base (4), a first robotic arm (5), a connecting rod (6), and a porous ultrasonic transducer (7); the second base (4) is located on the three-dimensional frame (3), the first robotic arm (5) is connected to the second base (4), the connecting rod (6) is connected between the porous ultrasonic transducer (7) and the end of the first robotic arm (5), the porous ultrasonic transducer (7) is located directly above the automated clamping module (2), and a porous water jet coupling wedge is provided at the end of the porous ultrasonic transducer (7); The top of the flat plate support step (9) is provided with a horizontal support platform (29), and a threaded hole is provided at the center of the horizontal support platform (29); the thickness adjustment plate (10) is provided with an internally threaded connecting lug (11) in the middle, and an internal hexagon bolt (12) is threadedly connected between the threaded hole on the horizontal support platform (29) and the internally threaded connecting lug (11) on the thickness adjustment plate (10); a vertically arranged slide rail (13) is fixedly connected to the side wall of the flat plate support step (9), and a first slider (14) that slides and engages with the slide rail (13) is fixedly connected to the side wall of the thickness adjustment plate (10).

2. The automated flat plate clamping and phased array ultrasonic testing device as described in claim 1, characterized in that: The thickness adjustment plate (10) has a clamping groove on the side wall near the flat plate support step (9), and a clamping buffer pad (16) is provided on the clamping groove. The clamping buffer pad (16) is an elastic element.

3. The automated flat plate clamping and phased array ultrasonic testing device as described in claim 1, characterized in that: A water tank (27) is provided below the support frame (8).

4. A method for automated clamping and phased array ultrasonic testing of a flat plate, employing the device described in any one of claims 1-3, characterized in that, include: Step 1: Set the parameters of the composite material plate (28) automatic clamping module (2) and the phased array ultrasonic detection module. The automatic clamping cycle is t1 seconds. The robotic arm equipped with the phased array ultrasonic transducer scans the motion path and time t2. Step 2: Measure the thickness of the composite material plate (28) test piece and calculate the height that the composite material plate (28) should exceed the thickness adjustment plate (10); Step 3: Place the composite material plate (28) to be tested. According to the thickness of the composite material plate (28), turn the fully threaded adjusting bolt to adjust the height difference between the thickness adjusting plate (10) and the plate support step (9). At the same time, observe the position of the indicator needle to ensure that the composite material plate (28) is slightly higher than the thickness adjusting plate (10). Step 4: Perform automated clamping, automated detection, ultrasonic acquisition, storage, and data analysis; Step 5: Take out the composite material plate (28) that has been tested and place the next composite material plate (28) to be tested; Step 6: Repeat steps 3 to 5 to proceed to the next composite material plate to be tested (28).

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