Blade defect ray detection tool and blade detection equipment

Abstract

The invention discloses a blade defect ray detection tool and blade detection equipment, and relates to the technical field of blade detection. The detection table is placed on the rotatable tool loading table, the detection table comprises a base, a plurality of blade seats and a driving mechanism, the blade seats are annularly arranged on the base, the blade seats are used for mounting blades to be detected, the driving mechanism is arranged on the base, and the driving mechanism is used for driving the blade seats to rotate so as to adjust the angles of the blades to be detected. According to the blade defect radiographic inspection tool provided by the invention, multi-posture transillumination detection of the blade is realized, the processes of visual identification, grabbing, putting back and the like in an automatic robot detection scheme are avoided, the detection efficiency of the blade defect is improved, the potential safety hazard is reduced, and the cost is lower. And meanwhile, the device can be suitable for different types of blades to be tested only by replacing the blade seat, and the universality is better.

Description

Technical Field

[0001] The present application relates to the technical field of blade X-ray detection, and more specifically, to a blade defect X-ray detection tool and a blade X-ray detection device. Background Art

[0002] The digital radiographic automatic inspection method for blades usually uses a robot to clamp the blades to adjust the posture of the blades and realize the transillumination inspection of the blades at different angles. In this process, the blade models of different batches must be identified first, and the robot must be required to change the corresponding clamping head, and then the position of the blade clamping part must be identified in turn. After the transillumination is completed, the blade must be returned to its original position. This is a blade inspection process. Although the above method improves the degree of automation, the robot can only grab one blade at a time, resulting in low inspection efficiency. In addition, in the process of clamping the blades with the clamping head, there are problems such as the blades not being clamped in place and deviations when they are returned to their original positions, which poses certain safety hazards.

[0003] Therefore, how to improve the efficiency and safety of blade defect detection while achieving multi-posture transillumination detection of blades has become a technical problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a blade defect X-ray detection tool to achieve multi-posture transillumination detection of blades while improving the efficiency and safety of blade defect detection.

[0005] Another object of the present application is to provide a blade inspection device having the above-mentioned blade defect X-ray inspection tooling.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] A blade defect radiographic detection tool, comprising:

[0008] The detection platform is placed on a rotatable ground loading platform, and the detection platform includes a base, a blade seat and a driving mechanism. There are multiple blade seats, and each blade seat ring is placed on the base. The blade seat is used to install the blade to be tested. The driving mechanism is arranged on the base, and the driving mechanism is used to drive each blade seat to rotate so as to adjust the angle of the blade to be tested.

[0009] Optionally, in the above-mentioned blade defect radiographic inspection tool, the driving mechanism includes a driving member and a transmission mechanism, and the driving member is used to drive the transmission mechanism so that the transmission mechanism drives each of the blade seats to rotate.

[0010] Optionally, in the above-mentioned blade defect X-ray detection tooling, the transmission mechanism includes a sun gear and a planetary gear, the planetary gear is adaptably connected to the blade seat, each of the planetary gears is arranged along the circumferential direction of the sun gear and meshes with the sun gear, and the driving member is used to drive the sun gear to rotate.

[0011] Optionally, in the above-mentioned blade defect X-ray detection tooling, the material of the transmission mechanism and the blade seat is non-metallic material.

[0012] Optionally, in the above-mentioned blade defect X-ray detection tool, there are at least two detection platforms, two adjacent detection platforms are connected along the length direction of the blade to be tested through a support column, and the driving mechanisms of the respective detection platforms are electrically connected.

[0013] Optionally, the blade defect X-ray inspection tooling mentioned above further includes a controller, and the controller is connected to the driving mechanism on at least one of the inspection platforms via an electrical harness.

[0014] Optionally, in the above blade defect X-ray inspection tool, at least one of the inspection tables is provided with a drag chain tray for placing a drag chain, and the drag chain limits an accommodation space for accommodating the wire harness.

[0015] Optionally, in the above-mentioned blade defect X-ray detection tooling, the drag chain disk is sleeved on the base, and the drag chain is wound around the outer peripheral wall of the base and supported on the drag chain disk.

[0016] A blade inspection device comprises an X-ray inspection device and a blade defect X-ray inspection tool as described in any one of the above items, wherein the X-ray inspection device comprises a tool loading platform and an X-ray inspection system, the inspection platform is placed on the tool loading platform, and the X-ray inspection system is used to inspect the blade to be inspected on the inspection platform.

[0017] Optionally, in the above-mentioned blade detection equipment, the X-ray detection system includes a rod anode X-ray machine and a digital detector array, the rod anode X-ray machine is used to emit X-ray signals, and the rod anode X-ray machine can be raised and lowered above the blade defect ray detection tooling, the digital detector array is used to receive the X-ray signals, and the digital detector array is arranged on one side of the blade defect ray detection tooling so that the blade to be tested is located between the rod anode X-ray machine and the digital detector array.

[0018] The blade defect X-ray detection tool provided by the present application has a plurality of blade seats for mounting the blades to be tested arranged in a ring on the base, so that the plurality of blades to be tested can be arranged in a ring on the base. At the same time, the driving mechanism arranged on the base can drive each blade seat to rotate to change the illumination angle of the blade to be tested, and the tool loading platform can drive the detection platform to rotate to achieve the replacement of the blade to be tested. It can be seen from the above examples that the blade defect X-ray detection tool provided by the present application realizes the illumination detection of blades in multiple postures, avoids the processes of robot visual recognition, grasping, and putting back, improves the detection efficiency of blade defects, reduces safety hazards, and has lower costs. At the same time, it only needs to replace the blade seat to be applicable to blades of different models to be tested, and has better versatility.

[0019] The technical features mentioned above, the technical features to be mentioned below, and the technical features shown separately in the drawings can be combined with each other arbitrarily, as long as the combined technical features are not contradictory. All feasible feature combinations are technical contents clearly recorded in this article. Any of the multiple sub-features contained in the same sentence can be applied independently, and does not have to be applied together with other sub-features. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the structure of a blade defect radiographic inspection tool provided in an embodiment of the present application;

[0022] Figure 2 A schematic diagram of the structure of a first detection station provided in an embodiment of the present application;

[0023] Figure 3 A flowchart for creating an automatic detection program provided in an embodiment of the present application.

[0024] Among them, 100 is a test bench, 101 is a base, 102 is a blade seat, 103 is a driving mechanism, 104 is a driving member, 105 is a transmission mechanism, 1051 is a sun gear, 1052 is a planetary gear, 106 is a support column, 107 is a controller, 108 is a wiring harness, 109 is a drag chain plate, 110 is a drag chain, and 1101 is a accommodating space. DETAILED DESCRIPTION

[0025] The core of this application is to provide a blade defect X-ray detection tool to improve the detection efficiency and safety of blade defects while realizing multi-posture transillumination detection of blades.

[0026] Another core of the present application is to provide a blade inspection device having the above-mentioned blade defect X-ray inspection tooling.

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] Blades are one of the core components of aircraft engines. When aircraft engines are working, blades are often in harsh environments such as high temperature, high pressure, and high load, which puts high demands on the inspection of blade casting quality. X-ray photography is one of the most widely used non-destructive testing technologies, which can effectively detect defects such as pores, broken cores, and inclusions in blades. X-ray photography usually uses film as a radiation receiving device, and the image obtained is presented in the form of a negative. Digital detector array (DDA) is another radiation receiving device that can convert radiation signals into electrical signals and display images on a monitor for defect evaluation. DDA has the advantages of high signal-to-noise ratio and easy automation.

[0029] The digital radiographic automatic inspection method for blades usually uses a robot to clamp the blades to adjust the posture of the blades and realize the transillumination inspection of the blades at different angles. In this process, for blades from different batches, the blade models must be identified first, and the corresponding clamping heads must be replaced for the robot. Then, the positions of the clamping parts of the blades must be identified in turn. After the transillumination is completed, the blades must be returned to their original positions. This is a blade inspection process. Although the above method improves the degree of automation, the robot can only grab one blade at a time, resulting in low inspection efficiency. In addition, in the process of clamping the blades with the clamping heads, there are problems such as the blades not being clamped in place and deviations when they are returned to their original positions, which poses a certain safety hazard.

[0030] For this reason, Figure 1 As shown, the embodiment of the present application discloses a blade defect radiographic detection tool, including a detection table 100. The blade defect radiographic detection tool realizes the multi-posture transillumination detection of blades, avoids the robot visual recognition, grasping, and putting back processes, improves the detection efficiency of blade defects, reduces safety hazards, and has lower costs. At the same time, only the blade seat 102 needs to be replaced to be applicable to blades of different models to be tested, and the versatility is better.

[0031] The following will be combined Figure 1 and Figure 2 The blade defect radiographic detection tooling disclosed in the embodiment of the present application is specifically explained and illustrated.

[0032] Among them, Figure 1 and Figure 2 As shown, the test bench 100 may include a base 101, a blade seat 102 and a driving mechanism 103, and the blade seat 102 may include multiple blade seats, each of which is placed on the base 101 to install each blade to be tested. When testing blades of different types, only the blade seat 102 needs to be replaced to be applicable to blades of different types, and the versatility is better. At the same time, the driving mechanism 103 can be set on the base 101, so that each blade seat 102 can be driven to rotate by the driving mechanism 103 to adjust the angle of the blade to be tested, thereby changing the illumination angle of the blade to be tested, and realizing the illumination detection of blades in multiple postures. In addition, the test bench 100 can be placed on a rotatable loading platform, and the blade to be tested can be replaced by rotating the loading platform, avoiding the robot visual recognition, grasping, and putting back processes, improving the detection efficiency of blade defects, reducing safety hazards, and lowering the cost.

[0033] In some embodiments, Figure 1 and Figure 2 As shown, the driving mechanism 103 may include a driving member 104 and a transmission mechanism 105. The driving member 104 may drive the transmission mechanism 105, so that the transmission mechanism 105 drives each blade seat 102 to rotate. Optionally, the transmission mechanism 105 may include a sun gear 1051 and a planetary gear 1052. The sun gear 1051 may be located at the center of the base 101, and the planetary gear 1052 is adaptively connected to the blade seat 102, that is, a planetary gear 1052 is fixed to the bottom of each blade seat 102, and each planetary gear 1052 is arranged around the circumferential direction of the sun gear 1051, and each planetary gear 1052 is meshed with the sun gear 1051, so that the sun gear 1051 can be driven to rotate by the driving member 104, so that the sun gear 1051 drives each planetary gear 1052 to rotate, and then the blade seat 102 on the planetary gear 1052 can be driven to rotate, so as to adjust the angle of the blade to be measured and change the transillumination angle of the blade to be measured. It should be noted that the driving member 104 may be a servo motor, a swing cylinder, etc. Of course, the driving member 104 may also be a rotary driver with a reduction mechanism and a driving motor, etc., as long as it can drive the sun gear 1051 to rotate.

[0034] In the above embodiment, the driving mechanism 103 may also include a plurality of driving members 104, and each blade seat 102 is provided with a driving member 104, so that the illumination angle of each blade to be measured can be individually controlled.

[0035] In some embodiments, the transmission mechanism 105 and the blade seat 102 may be made of non-metallic materials to reduce X-ray scattering and improve image quality. Optionally, the transmission mechanism 105 and the blade seat 102 may be made of engineering plastics, such as polytetrafluoroethylene (PTFE), polyetheretherketone (PEEK) or nylon, or composite materials, such as glass fiber composite materials or carbon fiber composite materials.

[0036] In the above embodiment, one or more detection stations 100 may be used to meet the requirements of blade defect detection in different scenarios.

[0037] In order to achieve more blade transillumination and improve the detection efficiency of blade defects, in some embodiments, such as Figure 1 As shown, the detection platform 100 may include at least two, that is, two, three or more detection platforms 100 may be used, and two adjacent detection platforms 100 are connected along the length direction of the blade to be tested through a support column 106, and the driving mechanisms 103 of each detection platform 100 are electrically connected, specifically, the driving members 104 of each driving mechanism 103 are electrically connected together. At the same time, the blade defect radiographic inspection tool is also provided with a controller 107, and the controller 107 is connected to the driving mechanism 103 on at least one of the inspection stations 100 through a wire harness 108, that is, the controller 107 can be one, and the controller 107 can be connected to the driving mechanism 103 of one of the inspection stations 100 through a wire harness 108 to achieve the control effect of the driving mechanism 103 of each inspection station 100, and of course, it can also be connected to the driving mechanism 103 in each inspection station 100 through a wire harness 108 to achieve the control effect of the driving mechanism 103 of each inspection station 100; the controller 107 can also be multiple, and the driving mechanism 103 of each inspection station 100 is connected to a controller 107, so as to achieve the control effect of the driving mechanism 103 of each inspection station 100. Preferably, the controller 107 is one, and the controller 107 is located inside the base 101 of the bottom inspection station 100, so that the blade defect radiographic inspection tool has a high degree of integration.

[0038] In order to prevent the wire harness 108 connected to the controller 107 and the driving mechanism 103 from getting entangled when the work platform drives the blade defect X-ray inspection tool to rotate, a drag chain plate 109 for placing the drag chain 110 is provided on at least one of the inspection platforms 100, and the drag chain 110 can form a accommodating space 1101 for accommodating the wire harness 108, so that the wire harness 108 can be located in the accommodating space 1101, thereby preventing the wire harness 108 from getting entangled when the work platform drives the blade defect X-ray inspection tool to rotate. Optionally, a drag chain disk 109 is provided on one of the test stations 100, and the drag chain disk 109 is sleeved on the base 101, and the wire harness 108 is inserted into the accommodating space 1101 of the drag chain 110, and is wound around the outer peripheral wall of the base 101 through the drag chain 110 and supported on the drag chain disk 109, so that the wire harness 108 can be more neatly wound around the outer peripheral wall of the base 101, and the wire harness 108 is prevented from being entangled. Of course, when there are multiple controllers 107, and the driving mechanism 103 of each test station 100 is connected to a controller 107, a drag chain disk 109 can also be provided on the base 101 of each test station 100, so that the wire harness 108 of each test station 100 is neatly wound around the outer peripheral wall of the base 101, and the wire harness 108 of each test station 100 is prevented from being entangled.

[0039] The embodiment of the present application also discloses a blade inspection device, including an X-ray inspection device and a blade defect X-ray inspection tool as disclosed in the above embodiment. Therefore, the blade inspection device has all the technical effects of the above-mentioned blade defect X-ray inspection tool, which will not be repeated herein.

[0040] The X-ray detection device may include a tool loading platform and an X-ray detection system, and the detection platform 100 is placed on a rotatable tool loading platform, so that the blade to be tested can be tested by the X-ray detection system, and the blade defect X-ray detection tool is driven to rotate by the rotatable tool loading platform to achieve the replacement of the blade to be tested. Optionally, the X-ray detection system may include a rod anode X-ray machine and a digital detector array.

[0041] The rod anode X-ray machine can be located above the blade defect X-ray detection tooling to emit X-ray signals, and the digital detector array can be set on one side of the blade defect X-ray detection tooling so that the blade to be tested is located between the rod anode X-ray machine and the digital detector array, so that the X-ray signal can be received by the digital detector array. In addition, the rod anode X-ray machine can be driven to lift and lower by the lifting mechanism of the mechanical system, so as to realize the detection of the blade to be tested on each detection platform 100. It should be noted that the tool loading platform can be driven to rotate by a driving member such as a servo motor.

[0042] In some embodiments, when testing the blade to be tested, first insert the tenon of the blade to be tested into the blade seat 102 so that the blade to be tested is fixed and not loose. Then, place the blade defect ray detection tooling on the workbench, electrically connect the controller 107 of the blade defect ray detection tooling to the workstation, control the rod anode X-ray machine above the blade defect ray detection tooling through the mechanical system, and control the height of the rod anode X-ray machine so that the tube head of the rod anode X-ray machine is in the appropriate position (generally, the tube head of the rod anode X-ray machine is flush with the tenon of the lowest blade to be tested) to ensure that the height of the rod anode X-ray machine is in the lowest possible working state at this time. When adjusting the position later, only the height of the rod anode X-ray machine needs to be adjusted upward to avoid the risk of collision between the rod anode X-ray machine and the workbench caused by the monitoring blind area when adjusting downward. Close the lead door. Turn on the rod anode X-ray machine and the detection software, observe the real-time image of the blade detection, use the mechanical system to adjust the position of the rod anode X-ray machine and the digital detector array, and control the rotation angle of the workbench so that the image of the blade detection is located at a suitable position in the imaging area of ​​the digital detector array, that is, the center position or avoid the edge area, to ensure a better imaging effect. Use the servo motor and other driving parts 104 to control the rotation of the sun gear 1051, adjust the illumination angle of a single blade to be tested, and collect the detection image. After the detection of a single blade to be tested is completed, control the workbench to rotate at a suitable angle so that the next blade to be tested is located in the X-ray beam, and continue to use the servo motor and other driving parts 104 to control the rotation of the sun gear 1051 to adjust the illumination angle of a single blade to be tested, and repeat this step until all blades to be tested are tested.

[0043] Of course, the blade defect X-ray detection tooling can also be integrated into the mechanical system as a mechanical axis. When inspecting the blade to be tested, an automatic detection program can be established first, and when the detection program is debugged, the automatic detection method can be implemented, thereby avoiding the process of adjusting the angle of the tool loading platform and the sun gear 1051 in the above embodiment.

[0044] In some embodiments, first, the tenon of the blade to be tested is inserted into the blade seat 102 so that the blade to be tested is fixed and not loose. The blade defect radiographic detection tool is placed on the tool loading platform, and auxiliary positioning marks can be made by drawing lines with an oil pen or setting grooves. The controller 107 of the blade defect radiographic detection tool is electrically connected to the workstation, and the rod anode X-ray machine is controlled above the blade defect radiographic detection tool through the mechanical system, and the height of the rod anode X-ray machine is controlled so that the tube head of the rod anode X-ray machine is in the appropriate position, and the jaws are closed. Then, an automatic detection program is created to perform digital radiographic automatic detection of the blade to be tested.

[0045] Among them, Figure 3As shown, creating an automatic detection program may include step S100 of debugging an X-ray detection device, step S101 of adjusting a blade angle and recording parameters, and step S102 of blade detection.

[0046] Step S100, debugging the X-ray detection device;

[0047] Open the automatic program creation module of the detection software, turn on the rod anode X-ray machine, observe the real-time image of the blade detection, use the mechanical system to adjust the position of the rod anode X-ray machine and the digital detector array, and control the rotation angle of the workbench so that the blade detection image is located at a suitable position in the imaging area of ​​the digital detector array, that is, the center position or avoid the edge area to ensure better imaging quality.

[0048] Step S101, adjusting the blade angle and recording the parameters;

[0049] The sun gear 1051 is controlled to rotate by the mechanical system so that the target blade to be tested rotates to a suitable detection angle, the position of each motion axis of the target blade to be tested is stored by the mechanical system, and the detection parameters of the target blade to be tested are saved by the software system. It should be noted that the motion axis is the mechanical axis used by the mechanical system to control components such as the X-ray tube, the digital detector array, and the workbench. The detection parameters are the exposure parameters of the X-ray machine and the imaging parameters of the detector, etc., which may include the tube voltage, tube current and exposure time as well as the frame rate, gain, integration time, etc.

[0050] Step S102, blade detection;

[0051] The rotation angle of the workbench is controlled, and the real-time image is observed to make the image of the blade located at an appropriate position in the image, and step S101 is repeated until the motion axes and detection parameters of the target blade to be tested are recorded.

[0052] Then, step S102 is repeated until all the blades to be tested on the blade defect radiographic detection tooling are inspected, and this automatic inspection program is named.

[0053] When the blade to be tested is subjected to digital radiographic automatic inspection, the blade to be tested is fixed on the blade seat 102 of the blade defect radiographic inspection tooling, and the blade defect radiographic inspection tooling is fixed on the tooling loading platform. The relative position relationship between the blade defect radiographic inspection tooling and the tooling loading platform is determined by the auxiliary positioning mark. The rod anode X-ray machine is controlled above the blade defect radiographic inspection tooling by the mechanical system, and the lead door is closed. The automatic inspection module of the inspection software is opened, and the automatic inspection program number is input to start the inspection.

[0054] The terms "first" and "second" and the like in the specification and claims of this application and the above drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may include steps or units that are not listed.

[0055] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A blade defect radiographic inspection tool, characterized in that: include: A test platform (100) is placed on a rotatable ground loading platform, and the test platform (100) comprises a base (101), a blade seat (102) and a driving mechanism (103); there are a plurality of blade seats (102), and each of the blade seats (102) is placed in a ring on the base (101); the blade seats (102) are used to mount a blade to be tested; the driving mechanism (103) is arranged on the base (101), and is used to drive each of the blade seats (102) to rotate, so as to adjust the angle of the blade to be tested.

2. The blade defect radiographic inspection tool according to claim 1 is characterized in that: The driving mechanism (103) comprises a driving member (104) and a transmission mechanism (105); the driving member (104) is used to drive the transmission mechanism (105), so that the transmission mechanism (105) drives each of the blade seats (102) to rotate.

3. The blade defect radiographic inspection tool according to claim 2 is characterized in that: The transmission mechanism (105) comprises a sun gear (1051) and planetary gears (1052); the planetary gears (1052) are adaptably connected to the blade seat (102); each of the planetary gears (1052) is arranged along the circumferential direction of the sun gear (1051) and meshes with the sun gear (1051); and the driving member (104) is used to drive the sun gear (1051) to rotate.

4. The blade defect radiographic inspection tool according to claim 2 is characterized in that: The transmission mechanism (105) and the blade seat (102) are made of non-metallic materials.

5. The blade defect radiographic inspection tool according to claim 1 is characterized in that: There are at least two detection platforms (100), two adjacent detection platforms (100) are connected along the length direction of the blade to be tested via a support column (106), and the driving mechanisms (103) of the detection platforms (100) are electrically connected.

6. The blade defect radiographic inspection tool according to claim 5 is characterized in that: It also includes a controller (107), and the controller (107) is connected to the driving mechanism (103) on at least one of the detection platforms (100) via an electrical harness (108).

7. The blade defect radiographic inspection tool according to claim 6 is characterized in that: At least one of the detection platforms (100) is provided with a drag chain tray (109) for placing a drag chain (110), and the drag chain (110) limits a receiving space (1101) for receiving the wire harness (108).

8. The blade defect radiographic inspection tool according to claim 7 is characterized in that: The drag chain plate (109) is sleeved on the base (101), and the drag chain (110) is wound around the outer peripheral wall of the base (101) and supported on the drag chain plate (109).

9. A blade detection device, characterized in that: It comprises an X-ray detection device and a blade defect ray detection tool as claimed in any one of claims 1 to 8, the X-ray detection device comprises a tool loading platform and an X-ray detection system, the detection platform (100) is placed on the tool loading platform, and the X-ray detection system is used to detect the blade to be detected on the detection platform (100).

10. The blade detection device according to claim 9, characterized in that: The X-ray detection system includes a rod anode X-ray machine and a digital detector array. The rod anode X-ray machine is used to emit X-ray signals, and the rod anode X-ray machine can be raised and lowered above the blade defect radiation detection tooling. The digital detector array is used to receive the X-ray signals, and the digital detector array is arranged on one side of the blade defect radiation detection tooling so that the blade to be tested is located between the rod anode X-ray machine and the digital detector array.

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