Automatic shooting detection system for turbine blade

Abstract

The invention relates to an automatic shooting detection system for turbine blades. The system comprises a film exposure unit, a part conveying line and a film conveying line, the part conveying line comprises a part conveying frame, one end of the part conveying frame directly faces the film exposure unit, a part storage table and a part grabbing unit are arranged at the other end of the part conveying frame, and a part detection tool is arranged on the part conveying frame and reciprocates along the part conveying frame; the film conveying line comprises a film conveying frame, one end of the film conveying frame right faces the film exposure unit, and the distance between the film conveying frame and the film exposure unit is larger than the distance between the part conveying frame and the film exposure unit; a film collecting and releasing unit and a film tray are arranged at the other end of the film conveying frame, and the film tray reciprocates along the film conveying frame. According to the system, automatic shooting detection of the turbine blade is realized, and the detection efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of nondestructive testing technology, specifically to an automated radiographic testing system for turbine blades. Background Technology

[0002] Turbine components are among the components of aero engines that bear the heaviest thermal and mechanical loads. Among turbine components, turbine blades operate in particularly harsh environments. During the cyclic operation of an aero engine, turbine blades are continuously subjected to the high-temperature and high-pressure impact of the combustion gases generated by fossil fuels. Therefore, turbine blade manufacturing technology is also considered one of the key technologies of modern aero engines.

[0003] After machining, turbine blades require rigorous testing to ensure their quality and reliability. Current aero-engine blade inspection methods primarily rely on manual visual inspection, supplemented by traditional non-destructive testing techniques. This method is labor-intensive, inefficient, and prone to causing visual fatigue from prolonged visual inspection, easily leading to missed inspections and posing a significant threat to aviation safety. Summary of the Invention

[0004] This invention provides an automated radiographic testing system for turbine blades to solve at least one of the aforementioned technical problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An automated film inspection system for turbine blades includes: a film exposure unit, a parts conveying line, and a film conveying line; The parts conveying line includes a parts conveying frame, one end of which is directly opposite the film exposure unit, and the other end of which is provided with a parts storage platform and a parts gripping unit. A parts inspection fixture is provided on the parts conveying frame, and the parts inspection fixture reciprocates along the parts conveying frame. The film transport line includes a film transport frame, one end of which faces the film exposure unit, and the distance between the film transport frame and the film exposure unit is greater than the distance between the part transport frame and the film exposure unit; the other end of the film transport frame is provided with a film take-up and take-down unit and a film tray, and the film tray reciprocates along the film transport frame.

[0006] Compared with the prior art, the present invention has at least the following beneficial effects: The automated radiographic inspection system for turbine blades provided by this invention uses a part gripping unit to grip blade parts on a part storage table, then places them sequentially onto a part inspection fixture, and then transports them to a film exposure unit by a part conveyor. Simultaneously, a film tray carrying a film moves along the film conveyor to the film exposure unit, where the film exposure unit completes the radiographic inspection, thus realizing automated radiographic inspection of turbine blades and greatly improving inspection efficiency.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] In one possible implementation, the film exposure unit includes a mounting frame, a focus adjustment base, and an X-ray emitting device, wherein the mounting frame is slidably connected to the focus adjustment base, and the X-ray emitting device is fixedly connected to the focus adjustment base.

[0009] In the above implementation method, by setting a focal length adjustment seat, the relative position between the X-ray emitting device and the part to be tested can be adjusted, thereby achieving full coverage of the part to be tested and ensuring the test results.

[0010] In one possible implementation, the parts gripping unit includes a gantry frame erected above the parts storage platform and the parts conveyor, and a six-axis manipulator mounted on the gantry frame, with pneumatic grippers at the free end of the six-axis manipulator.

[0011] In the above implementation method, by setting up a gantry and placing the six-axis robot on the gantry, the coverage range of the six-axis robot can be increased. Moreover, the robot is suspended in the air, which can improve space utilization and save ground space.

[0012] In one possible implementation, the parts storage station includes a disordered parts storage station and an ordered parts storage station, and a parts coding device is installed on the disordered parts storage station or the ordered parts storage station.

[0013] In the above implementation method, by setting up disordered parts storage platforms and ordered parts storage platforms and installing parts coding identification devices, the parts picking unit can sort the blade parts according to the codes, which facilitates subsequent inspection and management.

[0014] In one possible implementation, the part coding device includes: The image acquisition module is used to acquire image information of the parts; The image recognition module is used to recognize the part image information using a pre-trained encoding recognition model to obtain the part encoding information; The coding verification module is used to compare the part coding information with the pre-stored part coding information to be inspected one by one. If the comparison is incorrect, an alarm is triggered.

[0015] In the above implementation method, by using a pre-trained coding recognition model to automatically recognize the coding of parts, the accuracy and efficiency of recognition can be improved.

[0016] In one possible implementation, the part inspection fixture includes a part carrier that reciprocates along the part conveyor. The part carrier is a frame structure, and multiple part clamping components are rotatably connected to the inner side of the part carrier.

[0017] In the above implementation, by setting a part bracket with a frame structure and rotatably connecting multiple part clamping components on the inner side of the part bracket, it is possible to simultaneously perform radiographic testing on multiple parts. Moreover, the rotatable connection between the part clamping components and the part bracket enables multi-angle radiographic testing of the parts, thereby improving testing efficiency.

[0018] In one possible implementation, the film loading and unloading unit includes a first automatic film tray stacking mechanism and a second automatic film tray stacking mechanism disposed at the end of the film transport frame. The first automatic film tray stacking mechanism is used to store unused film trays, and the second automatic film tray stacking mechanism is used to store used film trays. There are multiple film trays, which are stacked and stored in the first automatic film tray stacking mechanism or the second automatic film tray stacking mechanism, and each film tray has film placed on it.

[0019] In the above implementation, two sets of automatic film tray stacking mechanisms are set up: one set is used to stack unused film trays, and the other set is used to stack used film trays, which facilitates the management of film trays.

[0020] In one possible implementation, the film transport line is further provided with a film tray displacement mechanism, which controls the film tray to move closer to or further away from the film exposure unit along a transport direction perpendicular to the film transport frame.

[0021] In the above implementation method, by setting a film tray displacement mechanism, the film tray is brought close to the part to be tested during film shooting, thereby ensuring the clarity of the film. After film shooting is completed, the film tray is moved away from the part to be tested to avoid accidental damage.

[0022] In one possible implementation, the film conveyor is fixedly mounted on the film tray displacement mechanism.

[0023] In the above implementation, by fixing the film conveyor frame to the film tray displacement mechanism, the film tray displacement mechanism controls the film conveyor frame to move, thereby realizing the displacement of the film tray. This can effectively prevent the film tray from being misaligned during the displacement process and ensure the filming effect.

[0024] In one possible implementation, a radiation protection chamber is also included, which is disposed outside the film exposure unit, and the parts transport rack and the end of the film transport rack near the film exposure unit are located inside the radiation protection chamber.

[0025] In the above implementation method, by setting up a radiation protection cabin, the physical damage to operation and maintenance personnel can be reduced, and their lives and health can be protected. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an automated radiographic testing system for turbine blades provided in an embodiment of the present invention; Figure 2 A front view of an automated radiographic testing system for turbine blades provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the film exposure unit in an embodiment of the present invention; Figure 4 This is a schematic diagram of the parts conveying line in an embodiment of the present invention; Figure 5 This is a schematic diagram of the film transport line in an embodiment of the present invention.

[0027] In the diagram: 1. Film exposure unit; 11. Mounting frame; 12. Focus adjustment seat; 121. Slide rail; 122. Slide base; 13. X-ray emitting device; 2. Parts conveying line; 21. Parts transfer rack; 22. Parts storage table; 221. Disordered parts storage table; 222. Ordered parts storage table; 23. Parts gripping unit; 231. Gantry frame; 232. Six-axis robot; 233. Pneumatic gripper; 24. Parts inspection fixture; 241. Parts bracket; 242. Parts clamping component; 3. Film conveying line; 31. Film transfer rack; 32. Film take-up and untake-down unit; 321. Automatic stacking mechanism for the first film tray; 322. Automatic stacking mechanism for the second film tray; 33. Film tray; 34. Film tray displacement mechanism; 4. Parts coding device; 5. Radiation protection chamber; 6. Industrial control unit. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be described below with reference to the accompanying drawings. In the description of the present invention, unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can represent A or B. The "or" in the present invention is merely a description of the relationship between the related objects, indicating that three relationships can exist. For example, A or B can represent: A alone, A and B simultaneously, and B alone. A and B can be singular or plural. Furthermore, in the description of the present invention, unless otherwise stated, "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items.

[0029] Furthermore, to facilitate a clear description of the technical solutions of the embodiments of the present invention, the terms "first" and "second" are used in the embodiments of the present invention to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0030] In this embodiment of the invention, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in this embodiment of the invention should not be construed as superior or more advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner for ease of understanding.

[0031] Turbine components are among the components of aero engines that bear the heaviest thermal and mechanical loads. Among turbine components, turbine blades operate in particularly harsh environments. During the cyclic operation of an aero engine, turbine blades are continuously subjected to the high-temperature and high-pressure impact of the combustion gases generated by fossil fuels. Therefore, turbine blade manufacturing technology is also considered one of the key technologies of modern aero engines.

[0032] After machining, turbine blades require rigorous testing to ensure their quality and reliability. Current aero-engine blade inspection methods primarily rely on manual visual inspection, supplemented by traditional non-destructive testing techniques. This method is labor-intensive, inefficient, and prone to causing visual fatigue from prolonged visual inspection, easily leading to missed inspections and posing a significant threat to aviation safety.

[0033] In view of this, embodiments of the present invention provide an automated film inspection system for turbine blades, comprising: a film exposure unit, a parts conveying line, and a film conveying line; the parts conveying line includes a parts conveying frame, one end of which faces the film exposure unit, and the other end of which is provided with a parts storage platform and a parts gripping unit; a parts inspection fixture is provided on the parts conveying frame, and the parts inspection fixture reciprocates along the parts conveying frame; the film conveying line includes a film conveying frame, one end of which faces the film exposure unit, and the distance between the film conveying frame and the film exposure unit is greater than the distance between the parts conveying frame and the film exposure unit; the other end of the film conveying frame is provided with a film take-up and take-down unit and a film tray, and the film tray reciprocates along the film conveying frame.

[0034] This invention provides an automated radiographic inspection system for turbine blades. A parts gripping unit picks up blade parts from a parts storage table, places them sequentially onto a parts inspection fixture, and then transports them to a film exposure unit via a parts conveyor. Simultaneously, a film tray carrying a film moves along the film conveyor to the film exposure unit, where the radiographic inspection is completed. This automated radiographic inspection of turbine blades significantly improves inspection efficiency.

[0035] The following description, in conjunction with the accompanying drawings, illustrates an embodiment of the present invention providing a punching electrode structure.

[0036] like Figures 1-5 As shown, this embodiment of the invention provides an automated film exposure and inspection system for turbine blades, including: a film exposure unit 1, a parts conveying line 2, and a film conveying line 3; The parts conveying line 2 includes a parts conveying frame 21. One end of the parts conveying frame 21 is directly facing the film exposure unit 1. The other end of the parts conveying frame 21 is provided with a parts storage platform 22 and a parts gripping unit 23. The parts conveying frame 21 is provided with a parts inspection fixture 24, which reciprocates along the parts conveying frame 21. The film transport line 3 includes a film transport frame 31, one end of which faces the film exposure unit 1, and the distance between the film transport frame 31 and the film exposure unit 1 is greater than the distance between the parts transport frame 21 and the film exposure unit 1; the other end of the film transport frame 31 is provided with a film take-up and take-down unit 32 and a film tray 33, and the film tray 33 reciprocates along the film transport frame 31.

[0037] In the specific implementation process, it should be noted that the automated turbine blade radiographic testing system provided in this embodiment of the invention is automatically controlled by the industrial control unit 6. The industrial control unit 6 in this embodiment of the invention is an existing conventional industrial control computer, and the specific model depends on the actual needs. It may include, but is not limited to, electrical control cabinets, console-style operation control consoles, electrical control systems, operation control systems, and status monitoring systems, etc., and is not limited here.

[0038] like Figure 3 As shown, in a feasible implementation, the film exposure unit 1 in this embodiment of the invention may include, but is not limited to, a mounting frame 11, a focus adjustment seat 12, and an X-ray emitting device 13. The mounting frame 11 is slidably connected to the focus adjustment seat 12, and the X-ray emitting device 13 is fixedly connected to the focus adjustment seat 12.

[0039] In this embodiment of the invention, by setting a focal length adjustment seat 12, the relative position of the X-ray emitting device 13 and the part to be tested can be adjusted, thereby achieving full coverage of the part to be tested and ensuring the test results.

[0040] In a specific implementation, the focal length adjustment seat 12 in this embodiment of the invention may include a slide rail 121 mounted on a mounting bracket 11, a slide block 122 slidably connected to the slide rail 121, and an X-ray emitting device 13 fixedly mounted on the slide block 122. The X-ray emitting device 13 adjusts its focal length by sliding on the slide rail 121 via the slide block 122, thereby achieving full coverage of the part to be tested.

[0041] like Figure 4 As shown, in a feasible implementation, the parts gripping unit 23 in this embodiment of the invention may include, but is not limited to, a gantry 231. The gantry 231 is mounted above the parts storage platform 22 and the parts conveying frame 21. A six-axis robot arm 232 is mounted on the gantry 231, and a pneumatic gripper 233 is mounted on the free end of the six-axis robot arm 232.

[0042] In this embodiment of the invention, by setting up a gantry 231, the six-axis robot 232 is mounted on the gantry 231, which can improve the coverage of the six-axis robot 232. Moreover, the robot is suspended in the air, which can improve space utilization and save ground space.

[0043] It should be noted that the six-axis robot 232 in this embodiment of the invention can, but is not limited to, move along the conveying direction of the parts conveying frame 21 on the gantry 231; the coverage area of ​​the six-axis robot 232 in this embodiment of the invention can at least cover the entire parts storage platform 22 and the range of the parts inspection fixture 24 on the parts conveying frame 21.

[0044] In specific implementation, since turbine blades have different models and structures, the pneumatic gripper 233 in this embodiment of the invention is preferably connected to the six-axis robot 232 in a detachable manner. Furthermore, to avoid damage to the parts during gripping, the pneumatic gripper 233 in this embodiment of the invention is preferably manufactured using high-strength, low-density non-metallic materials, thereby ensuring that the parts are not damaged during gripping.

[0045] like Figure 4 As shown, in a feasible implementation, the parts storage platform 22 in this embodiment of the invention may include, but is not limited to, a disordered parts storage platform 221 and an ordered parts storage platform 222, and a parts coding device 4 is installed on the disordered parts storage platform 221 or the ordered parts storage platform 222.

[0046] In this embodiment of the invention, by setting up a disordered parts storage platform 221 and an ordered parts storage platform 222 and installing a parts coding device 4, the parts gripping unit 23 can sort the blade parts according to the codes, which facilitates subsequent inspection and management.

[0047] In one feasible implementation, the part coding device 4 in this embodiment of the invention includes: The image acquisition module is used to acquire image information of the parts; The image recognition module is used to recognize part image information using a pre-trained coding recognition model and obtain part coding information; The coding verification module is used to compare the part coding information with the pre-stored part coding information to be inspected one by one. If the comparison is incorrect, an alarm will be triggered.

[0048] The embodiments of the present invention use a pre-trained coding recognition model to automatically recognize the coding of parts, which can improve the accuracy and efficiency of recognition.

[0049] In specific implementation, the part coding identification device 4 in this embodiment of the invention may, but is not limited to, employ a smart camera with embedded AI deep learning algorithms. The smart camera has a built-in embedded VM software server and VMClient runtime interface, supporting connection establishment with the camera via a VM client on a Windows PC. Of course, existing conventional image recognition devices may also be used, and this is not a limitation.

[0050] In the specific implementation process, in order to ensure the cleanliness of image acquisition, the embodiments of the present invention can also set a three-color light source at the part coding identification device 4 to enhance the contrast between the part coding and the part body, thereby making the coding in the acquired image clearer.

[0051] In the specific implementation process, it should be noted that the encoding recognition model in the embodiments of the present invention adopts existing common image recognition models, such as convolutional neural network models (LeNet-5, AlexNet, VGGNet, etc.), Transformer-based vision models, etc., and is not limited here.

[0052] In specific implementation, the comparison errors in this embodiment of the invention may include, but are not limited to, encoding errors and failure to identify encoding. The alarm triggering in this embodiment of the invention includes, but is not limited to, pausing detection and prompting staff to conduct manual verification; detection will resume only after the manual verification is completed.

[0053] like Figure 4 As shown, in a feasible implementation, the part inspection fixture 24 in this embodiment of the invention may include, but is not limited to, a part bracket 241. The part bracket 241 reciprocates along the part conveyor 21. The part bracket 241 has a frame structure, and multiple part clamping members 242 are rotatably connected to the inner side of the part bracket 241.

[0054] In this embodiment of the invention, a part bracket 241 with a frame structure is provided, and multiple part clamping members 242 are rotatably connected to the inner side of the part bracket 241. This enables simultaneous radiographic testing of multiple parts. Moreover, the part clamping members 242 are rotatably connected to the part bracket 241, enabling multi-angle radiographic testing of parts and improving testing efficiency.

[0055] It should be noted that the part clamping member 242 in this embodiment of the invention can not only rotate around the part bracket 241, but also rotate around itself, thereby achieving more angle adjustments and further improving detection efficiency.

[0056] like Figure 5 As shown, in one feasible implementation, the film loading and unloading unit 32 of this embodiment includes a first film tray automatic stacking mechanism 321 and a second film tray automatic stacking mechanism 322 disposed at the end of the film conveyor 31. The first film tray automatic stacking mechanism 321 is used to store unused film trays 33, and the second film tray automatic stacking mechanism 322 is used to store used film trays 33. There are multiple film trays 33, which are stacked and stored in the first film tray automatic stacking mechanism 321 or the second film tray automatic stacking mechanism 322, and each film tray 33 has film placed on it.

[0057] The embodiments of the present invention facilitate the management of film trays 33 and improve detection efficiency by setting up a first automatic film tray stacking mechanism 321 and a second automatic film tray stacking mechanism 322.

[0058] In the specific implementation process, the first automatic film tray stacking mechanism 321 and the second automatic film tray stacking mechanism 322 in the embodiments of the present invention both adopt existing conventional automatic stacking mechanisms, such as column insert arm stacking machines, chain / belt lifting stacking machines or four-column scissor fork lifting stacking machines, etc., and are not limited here.

[0059] like Figure 5 As shown, in one feasible implementation, the film transport line 3 in this embodiment of the invention is further provided with a film tray displacement mechanism 34, which controls the film tray 33 to move closer to or further away from the film exposure unit 1 along a transport direction perpendicular to the film transport frame 31.

[0060] In this embodiment of the invention, by setting a film tray displacement mechanism 34, the film tray 33 is brought close to the part to be tested during film taking, thereby ensuring the clarity of the film. After film taking, the film tray 33 is moved away from the part to be tested to avoid accidental damage.

[0061] In one feasible implementation, the film conveyor 31 in this embodiment of the invention is fixedly mounted on the film tray displacement mechanism 34.

[0062] In this embodiment of the invention, the film conveyor 31 is fixedly installed on the film tray displacement mechanism 34. The film tray displacement mechanism 34 controls the film conveyor 31 to move, thereby realizing the displacement of the film tray 33. This can effectively prevent the film tray 33 from being misaligned during the displacement process and ensure the filming effect.

[0063] In specific implementation, the film conveyor 31 in this embodiment of the invention can also adopt a segmented structure. The film conveyor 31 segment located at the film exposure unit 1 is fixedly installed on the film tray displacement mechanism 34, while the other film conveyor 31 segments are fixedly installed on the ground. This design can effectively reduce the load-bearing pressure of the film tray displacement mechanism 34.

[0064] like Figure 1 and Figure 2 As shown, in one feasible implementation, the present invention further includes a radiation protection chamber 5, which is installed outside the film exposure unit 1, and the parts conveyor 21 and the film conveyor 31 are located inside the radiation protection chamber 5 at the ends near the film exposure unit 1.

[0065] By setting up a radiation protection cabin 5, this embodiment of the invention can reduce physical damage to maintenance personnel and protect their lives and health.

[0066] In specific implementation, the radiation protection chamber 5 in this embodiment of the invention may, but is not limited to, adopt a steel-lead-steel structure with six lead-coated sides to meet the 450KV radiation protection requirements; the radiation protection chamber 5 is designed with installation positions for mechanical devices, which can achieve seamless connection with the mechanical devices; the radiation protection chamber 5 fully considers the space needs for personnel operation, maintenance and repair, and is equipped with corresponding maintenance doors; warning signs such as ionizing radiation and emergency stop are installed at multiple locations in the radiation protection chamber 5 and the equipment.

[0067] The working principle of the automated radiographic testing system for turbine blades provided in this embodiment of the invention is as follows: The blade parts to be inspected are transferred from the upstream equipment to the disordered parts storage platform 221; The pneumatic gripper 233 grabs the blade part to be inspected on the disordered parts storage table 221 and aligns it with the parts coding device 4, so that the parts coding device 4 can encode and identify the parts to be inspected. After the parts are identified as having the correct code, they are placed on the ordered parts storage table 222 in sequence. After the blade parts to be inspected are sorted, the pneumatic grippers 233 sequentially grab the blade parts to be inspected and place them on the part clamping member 242 of the part bracket 241 to complete the clamping and fixing. Once the parts tray 241 is fully loaded, it is moved via the parts conveyor 21 to the area directly below the X-ray emitting device 13. At the same time, the first film tray automatic stacking mechanism 321 releases an unused film tray 33 onto the film conveyor 31, which then conveys it to the area directly below the X-ray emitting device 13. After the film tray 33 is moved into place, the film tray displacement mechanism 34 moves the film tray 33 to a position close to the blade part to be inspected. At this time, the blade part to be inspected is located between the X-ray emitting device 13 and the film tray 33. Adjust the focal length of the X-ray emitting device 13 so that it can completely cover the entire blade part to be inspected, start the X-ray emitting device 13, and complete the imaging. After filming is completed, the parts conveyor 21 moves in the opposite direction with the parts tray 241, and is picked up by the pneumatic gripper 233 and placed on the transmission line of the downstream equipment; the used film tray 33 moves in the opposite direction to the second film tray automatic stacking mechanism 322, and is stacked and stored by the second film tray automatic stacking mechanism 322.

[0068] The automated radiographic testing system for turbine blades provided in this embodiment of the invention realizes automated radiographic testing of turbine blades, greatly improving testing efficiency.

[0069] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0071] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0072] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0074] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An automated radiographic inspection system for turbine blades, characterized in that, include: Film exposure unit (1), parts conveyor line (2) and film conveyor line (3); The parts conveying line (2) includes a parts conveying frame (21), one end of which is directly opposite the film exposure unit (1), and the other end of which is provided with a parts storage platform (22) and a parts gripping unit (23). A parts inspection fixture (24) is provided on the parts conveying frame (21), and the parts inspection fixture (24) reciprocates along the parts conveying frame (21). The film transport line (3) includes a film transport frame (31), one end of which is directly opposite the film exposure unit (1), and the distance between the film transport frame (31) and the film exposure unit (1) is greater than the distance between the part transport frame (21) and the film exposure unit (1); the other end of the film transport frame (31) is provided with a film take-up and take-down unit (32) and a film tray (33), and the film tray (33) reciprocates along the film transport frame (31).

2. The automated radiographic testing system for turbine blades according to claim 1, characterized in that, The film exposure unit (1) includes a mounting bracket (11), a focal length adjustment seat (12), and an X-ray emitting device (13). The mounting bracket (11) is slidably connected to the focal length adjustment seat (12), and the X-ray emitting device (13) is fixedly connected to the focal length adjustment seat (12).

3. The automated radiographic testing system for turbine blades according to claim 1, characterized in that, The part gripping unit (23) includes a gantry (231), which is mounted above the part storage platform (22) and the part conveyor (21). A six-axis manipulator (232) is mounted on the gantry (231), and a pneumatic gripper (233) is mounted on the free end of the six-axis manipulator (232).

4. The automated radiographic testing system for turbine blades according to claim 1, characterized in that, The parts storage platform (22) includes a disordered parts storage platform (221) and an ordered parts storage platform (222), and a parts coding device (4) is installed on the disordered parts storage platform (221) or the ordered parts storage platform (222).

5. The automated radiographic testing system for turbine blades according to claim 4, characterized in that, The part coding device (4) includes: The image acquisition module is used to acquire image information of the parts; The image recognition module is used to recognize the part image information using a pre-trained encoding recognition model to obtain the part encoding information; The coding verification module is used to compare the part coding information with the pre-stored part coding information to be inspected one by one. If the comparison is incorrect, an alarm is triggered.

6. The automated radiographic testing system for turbine blades according to claim 1, characterized in that, The part inspection fixture (24) includes a part bracket (241), which reciprocates along the part conveyor (21). The part bracket (241) is a frame structure, and multiple part clamping components (242) are rotatably connected to the inner side of the part bracket (241).

7. The automated radiographic testing system for turbine blades according to claim 1, characterized in that, The film loading and unloading unit (32) includes a first film tray automatic stacking mechanism (321) and a second film tray automatic stacking mechanism (322) disposed at the end of the film conveyor (31). The first film tray automatic stacking mechanism (321) is used to store unused film trays (33), and the second film tray automatic stacking mechanism (322) is used to store used film trays (33). There are multiple film trays (33), which are stacked and stored in the first film tray automatic stacking mechanism (321) or the second film tray automatic stacking mechanism (322). Each film tray (33) has film placed on it.

8. The automated radiographic testing system for turbine blades according to claim 1, characterized in that, The film conveyor line (3) is also provided with a film tray displacement mechanism (34), which controls the film tray (33) to move closer to or further away from the film exposure unit (1) along the conveying direction perpendicular to the film conveyor frame (31).

9. The automated radiographic testing system for turbine blades according to claim 8, characterized in that, The film conveyor (31) is fixedly installed on the film tray displacement mechanism (34).

10. The automated radiographic testing system for turbine blades according to any one of claims 1-9, characterized in that, It also includes a radiation protection chamber (5), which is covered outside the film exposure unit (1), and the parts conveyor (21) and the film conveyor (31) are located inside the radiation protection chamber (5) at the end near the film exposure unit (1).

Images