Automatic X-ray transillumination system for blade parts

Abstract

The utility model provides an automatic X-ray transillumination system for blade parts, which comprises an X-ray transillumination device, a control console, a turntable assembly and a plurality of fixture assemblies uniformly distributed at the top of a turntable in the circumferential direction, the axis of each fixture assembly is along the radial direction of the turntable assembly, and a tested blade can be fixed on a fixture body through a quick locking assembly. The console is used for controlling the rotary table assembly to rotate intermittently according to the set rotating speed and time, and when the rotary table assembly stops rotating, the X-ray transillumination equipment grabs a transillumination image of a detected blade located in the center of a detector of the X-ray transillumination equipment; and after detection is completed, the rotary table assembly continues to rotate and continues to stop after the next blade rotates to the position of the detector, and after the steps are repeated for a certain number of times, the rotary table rotates by a circle, transillumination of the last blade is completed, and after detection is completed, the rotary table assembly automatically and reversely rotates back to the initial position. By adopting the automatic transillumination system, the continuous transillumination operation of a plurality of blades can be realized at one time, and the detection efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of X-ray inspection technology for parts, specifically relating to an automatic X-ray X-ray inspection system for blade-type parts. Background Technology

[0002] X-ray inspection devices are typically used to detect and measure the internal structure and defects of objects. They utilize the penetration of X-rays into the object and the capture of energy changes in the X-rays by a detector to obtain information about the object's interior. DR digital X-ray inspection technology has advantages such as high precision and high efficiency. This method replaces film-based X-ray inspection with an amorphous silicon flat panel detector, achieving a technological iteration that allows for multiple radiographs without film replacement and enables real-time imaging.

[0003] X-ray radiography can be used to quickly detect defects in blade-like parts. Chinese patent CN117686524A discloses a digital X-ray inspection device for blade crowns, which uses an adjustable-angle support plate to fix individual blades for radiography. However, this method suffers from the problem of requiring manual blade replacement after each radiography session and low inspection efficiency. Patent application CN118777333A proposes an indexing turntable structure, which transports individual blades for inspection by rotating the platform 90° each time. While this reduces X-ray scattering, it still requires loading and unloading blades one by one, preventing continuous batch inspection. Patent CN211927745U discloses an automatic X-ray inspection device for blades, which uses a conveyor tray and robotic arm to automate blade inspection. However, it relies on a complex conveyor line and external grippers for frequent replacements, resulting in large equipment size, high cost, and low inspection efficiency due to frequent replacements. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing X-ray imaging devices in the inspection of blades, such as low automation, high cost and low inspection efficiency, and to provide an automatic X-ray imaging system for blade-type parts.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] An automated X-ray radiography system for blade-like parts, the blade-like parts including a blade body and a tenon coaxially fixed to the blade body; the automated X-ray radiography system includes a control console, an X-ray radiography device, a turntable assembly, and a clamping assembly;

[0007] The turntable assembly includes a motor and a turntable, the motor being capable of driving the turntable to rotate about its circumference;

[0008] Multiple clamping assemblies are evenly distributed circumferentially on the top surface of the turntable and close to the edge of the top surface of the turntable; and the axis of the clamping assembly is along the radial direction of the turntable.

[0009] The clamp assembly includes a clamp body and a quick-locking assembly; the quick-locking assembly is installed on the top of the clamp body, and the quick-locking device can quickly fix the blade-like part to be tested into the clamp body;

[0010] The control console is used to control the motor to work intermittently according to a set speed and a set time.

[0011] The X-ray radiography device can capture radiographic images of the tested blade-like parts located at the detection port of the X-ray radiography device when the motor stops working.

[0012] Furthermore, one end of the clamp body has a stepped column hole opened along its length direction, and the top of the clamp body has a locking through hole that is vertically opened and communicates with the stepped column hole.

[0013] The stepped post hole is for the tenon and the blade to pass through, and the locking through hole is for the clamping end of the quick-locking assembly to pass through to lock the tenon.

[0014] Furthermore, the quick-locking assembly includes a latch, a locking spring, and a pin;

[0015] The latch includes a locking part, a connecting part, and a force-applying part connected in sequence;

[0016] The locking part can extend into the vertically opened locking through hole on the clamp body and abut against the end face of the tenon along the tenon axis, so that the tenon is limited between the locking part and the step surface of the step column hole.

[0017] The connecting part is connected to the top of the clamp body via the pin and the locking spring; the force-applying part is used to withstand the pressure applied by the operator;

[0018] The connecting part is capable of rotating about the pin when the operator applies pressure to disengage the locking part from the locking through hole, and is also capable of rotating about the pin when the operator releases pressure to engage the locking part in the locking through hole.

[0019] Furthermore, the end of the locking part has a wedge-shaped structure.

[0020] Furthermore, the locking spring is made of spring steel and undergoes quenching and medium-temperature tempering treatment.

[0021] Furthermore, the initial compression of the locking spring is 6-8 mm.

[0022] Furthermore, the clamp body is a right-angled trapezoidal structure; the clamp body has a rectangular groove horizontally arranged from one end face and along the axial direction of the stepped column hole, the rectangular groove being located on one side of the stepped column hole and communicating with the stepped column hole;

[0023] The width of the rectangular groove is adapted to the thickness of the blade at the mating position, and the bottom surface of the rectangular groove is on the same horizontal plane as the central axis of the blade; the rectangular groove is used to prevent the blade from rotating around the stepped column hole;

[0024] On the other side of the stepped column hole, at a position corresponding to the rectangular groove, there is a clearance notch to ensure that the weld area of ​​the blade is not obstructed during radiographic illumination.

[0025] Furthermore, the end of the fixture body away from the rectangular slot is a hollow structure, and the two sides of the hollow structure are symmetrically arranged triangular support arms, with weight reduction holes on the triangular support arms.

[0026] Furthermore, the top surface of the turntable is evenly distributed with a plurality of first positioning pin holes in the circumferential direction, and the bottom of the hollow structure of the fixture body has a second positioning pin hole corresponding to the first positioning pin hole.

[0027] It also includes positioning pins, which pass through the first positioning pin hole and the second positioning pin hole to fix the fixture body to the top surface of the turntable.

[0028] Furthermore, the fixture body is formed by 3D printing using nylon powder sintering.

[0029] The advantages of this utility model are:

[0030] 1. This utility model discloses an automatic X-ray radiography system for blade-type parts, comprising an X-ray radiography device, a control console, a turntable assembly, and a clamping assembly. Multiple clamping assemblies are evenly arranged circumferentially on top of the turntable assembly, with their axes along the radial direction of the turntable assembly. The blade under test can be fixed to the clamping body via a quick-locking assembly. The X-ray radiography device continuously performs radiography. The control console controls the turntable assembly to rotate intermittently according to a set speed and time. When the turntable assembly stops rotating, the X-ray radiography device captures the radiographic image of the blade under test located at its detector port. After completion, the turntable assembly continues to rotate until the next blade reaches the detector position, and then pauses again. This process is repeated a certain number of times until the turntable completes one revolution and the last blade is radiographed. After the inspection is finished, the turntable assembly automatically rotates in the opposite direction to return to its initial position. Using this utility model's automatic radiography system, multiple blades can be continuously radiographed at once, reducing the radiography time from 135 minutes using the traditional method to 19 minutes, and improving inspection efficiency by 85%.

[0031] 2. The waiting time for each illumination test using traditional equipment is about 10 minutes (for changing the blades). With the automatic illumination system of this utility model, the operator does not need to enter and exit the lead room multiple times to change the test blades, saving blade replacement time. Each batch can save about 120 minutes, realizing batch testing of blades.

[0032] 3. In this utility model, a quick-locking assembly is used to clamp the blade edge plate. The locking end of the quick-locking assembly is an inclined wedge-shaped structure, which generates a component force along the inclined plane when the blade is pushed in. After overcoming the preload of the locking spring, the locking buckle automatically pops up. After the blade is fully pushed in, the locking spring rebounds and closes the locking buckle, forming a self-locking state, which does not require manual operation. In addition, the unlocking force of the quick-locking assembly in this utility model is small. When pulling out, only a light push on the tail of the locking buckle is needed to release the blade, thus improving the operating efficiency.

[0033] 4. In this utility model, the blade edge plate is pressed by a locking buckle in the horizontal direction; the blade body is limited by a rectangular notch in the vertical direction to prevent the blade from rotating along the blade body axis; thus, the blade is clamped in both directions, which makes the blade repeatability and positioning accuracy high and meets the X-ray detection image registration requirements. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the automatic X-ray radiography system for blade-type parts of this utility model. The control console and X-ray radiography equipment are not included in the diagram.

[0035] Figure 2 This is an exploded view of the fixture assembly structure in this utility model;

[0036] Figure 3 This is a side perspective view of the clamping assembly in this utility model. Figure 1 ;

[0037] Figure 4 This is a side perspective view of the clamping assembly in this utility model. Figure 2

[0038] Figure 5 This is a cross-sectional view of the clamp body along its length in this utility model;

[0039] Figure 6 This is a top view of the clamp body in this utility model;

[0040] Figure 7 This is a side view of the clamp body in this utility model;

[0041] Figure 8 This is a top view of the clamp assembly and blade mating in this utility model;

[0042] Figure 9 yes Figure 8 BB cross-sectional view;

[0043] Figure 10 yes Figure 7 Side view;

[0044] Figure 11 This is a schematic diagram of the control process in this utility model.

[0045] In the diagram: 1-turntable, 2-clamp assembly, 201-clamp body, 20101-step column hole, 20102-locking through hole, 20103-rectangular groove, 20104-displacement notch, 202-lock, 203-pin, 204-locking spring, 3-motor, 4-blade, 401-blade body, 402-tenon. Detailed Implementation

[0046] The embodiments of the present invention are described in detail below. These embodiments are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0047] Reference Figure 1 This embodiment provides an automated X-ray radiography system for blade-like parts, including a control console, an X-ray radiography device, a turntable assembly, and a fixture assembly 2. Based on the structural characteristics of engine blades and the matching installation positions of the fixture and turntable, this embodiment designs the fixture assembly structure. The turntable assembly includes a turntable 1 and a motor 3. The turntable, from top to bottom, includes a turntable and a support platform coaxially connected to the turntable. The motor 3 is installed inside the support platform and is used to drive the turntable to rotate around its circumference. The X-ray radiography device continuously performs radiography after startup. The control console has a preset rotation control program to control the motor to work intermittently according to a set speed and set time. During periods when the motor stops rotating, the operator uses the X-ray radiography device to capture radiographic images of the blade part being tested at the detection port of the X-ray radiography device.

[0048] Multiple clamping assemblies are evenly distributed circumferentially on the top surface of the turntable, near the edge of the top surface, with the axis of the clamping assembly along the radial direction of the turntable. The clamping assembly includes a clamping body and a quick-locking assembly. The quick-locking assembly is used to quickly lock the blade-like part being tested onto the top of the clamping body and enables quick opening for blade replacement.

[0049] Reference Figures 2-10The clamp assembly 2 includes a clamp body 201 and a quick-locking assembly. The clamp body is used to cooperate with the quick-locking assembly to stably fix the blade under test on its top. The clamp body is 3D printed using nylon powder sintering to avoid scratches when in contact with the titanium alloy blade. The clamp body has a right-angled trapezoidal structure. One end of the clamp body has a stepped post hole 20101 opened along its length direction, and the top of the clamp body has a vertically opened locking through hole 20102 communicating with the stepped post hole. The stepped post hole 20101 is used for the tenon 401 and blade body 401 of the blade to pass through, and is used to fix the blade body and limit the radial downward rotation of the blade. The locking through hole 20102 is used for the clamping end of the quick-locking assembly to pass through to lock the tenon 402 of the blade. The fixture body has a horizontally positioned rectangular groove 20103 extending along the axial direction of the stepped column hole 20101, starting from one end face. The rectangular groove 20103 is located on one side of the stepped column hole and penetrates through it. The width of the rectangular groove is adapted to the thickness of the blade at the blade mating position, and the bottom surface of the rectangular groove is on the same horizontal plane as the central axis of the blade. The rectangular groove 20103 is used to prevent the blade from rotating around its axis within the stepped column hole 20101. The edges of the rectangular groove 20103 are rounded with a radius of 0.5mm to avoid scratching the blade surface. On the other side of the stepped column hole 20101, at a position corresponding to the rectangular groove 20103, a clearance notch 20104 is provided to ensure that the weld area of ​​the blade is not obstructed during radiographic examination.

[0050] The end of the fixture body furthest from the rectangular slot 20103 is hollow, with symmetrically arranged triangular support arms on both sides. Weight-reduction holes are provided on the triangular support arms. Several first positioning pin holes are evenly distributed around the top of the turntable, and second positioning pin holes are provided at the bottom of the hollow structure. These are used to fix the fixture body to the top via positioning pins, enabling quick assembly and disassembly to meet the testing requirements of different blade types.

[0051] The horizontal top of the fixture body has two vertically upward-designed lugs, and the lugs have a first pin hole coaxially opened on them.

[0052] The quick-locking assembly includes a latch 202, a pin 203, and a locking spring 204. The latch 202 includes a locking part 2021, a connecting part 2022, and a force-applying part 2023 connected in sequence. The locking part 2021 extends into the locking through hole 20102 on the clamp body and abuts against the tenon end face along the tenon axis, thus limiting the tenon 402 between the locking part 2021 and the stepped surface of the stepped post hole 20101. Specifically, the end of the locking part 2021 has a wedge-shaped structure. During the pushing of the blade, the inclined surface of the wedge-shaped structure generates a component force along the direction of the inclined surface. This component force allows the latch to overcome the preload of the locking spring 204 and automatically spring back. After the blade is fully pushed in, the locking spring 204 rebounds, closing the latch and forming a self-locking state, requiring no manual operation. The connecting part 2022 has a second pin hole coaxially opened. The connecting part is fitted between two lugs on the top of the clamp body. The pin 203 passes through the first pin hole on the lug and the second pin hole of the connecting part to realize the connection between the latch and the clamp body. The locking spring 204 is fitted on the rod of the pin 203 and is located between the two lugs. The force-applying part 2023 is used to withstand the pressure applied by the operator. The connecting part can rotate around the pin to open the locking part when the operator applies pressure, and can rotate around the pin to close the locking part when the operator releases pressure.

[0053] The initial compression of the locking spring 204 is 6-10 mm to provide the locking force, ensuring that the lock automatically springs up and locks the blade when it is pushed in. During removal, only a slight push on the force-applying part of the lock 202 is needed to open the lock and remove the blade, thus improving blade replacement efficiency. The locking spring 204 is made of spring steel and undergoes quenching and medium-temperature tempering treatment, resulting in a high fatigue life.

[0054] The design of the clamp assembly 2 fixes the blade 4 in both the horizontal and vertical directions, ensuring that the blade is firmly clamped during rotation on the turntable; at the same time, the rectangular groove 20102 designed in the clamp body can hold the blade body, ensuring that the blade will not rotate along the blade body axis.

[0055] Reference Figure 11 The process of simultaneously inspecting multiple leaves using the automatic light transmission system of this invention is as follows:

[0056] Step 1: Evenly install multiple clamping components on the top of the turntable at 30° intervals; the interval angle matches the motor speed and the stop time. In this embodiment, the motor cycles through 30° rotations followed by a 30-second pause.

[0057] Step 2: Push the blade horizontally into the locking jaws, and the jaws will close and lock the blade edge plate. Repeat this process to load all the blades to be tested onto their respective fixture bodies.

[0058] Step 3: The operator leaves the lead room, starts the control panel outside the lead room, controls the motor to rotate, and the motor drives the turntable to rotate from the set 0°; the X-ray radiography equipment is then started to perform radiography.

[0059] Step 4: When the motor stops rotating for the first time, the first blade is exactly in the center of the detector; the motor stops for 30 seconds; the operator manipulates the X-ray radiography equipment to capture the radiographic image of the first blade.

[0060] Step 5: The motor continues to operate at a regular pattern of rotating 30° and pausing for 30 seconds until the turntable has completed one full rotation, obtaining radiographic images of all blades. After the inspection is complete, the control console controls the turntable to rotate back to its initial position.

[0061] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model.

Claims

1. An X-ray automatic vane-like part radiographic system, the vane-like part comprising a vane body and a tenon coaxially fixed to the vane body; characterized in that, The automated X-ray fluoroscopy system includes a control console, an X-ray fluoroscopy device, a turntable assembly, and a clamp assembly. The turntable assembly includes a motor and a turntable, the motor being capable of driving the turntable to rotate about its circumference; Multiple clamping assemblies are evenly distributed circumferentially on the top surface of the turntable and close to the edge of the top surface of the turntable; Furthermore, the axis of the clamp assembly is radially along the turntable; The clamp assembly includes a clamp body and a quick-locking assembly; the quick-locking assembly is mounted on the top of the clamp body and can quickly fix the blade-like part to be tested into the clamp body. The control console is used to control the motor to work intermittently according to a set speed and a set time. The X-ray radiography device can capture radiographic images of the tested blade-like parts located at the detection port of the X-ray radiography device when the motor stops working.

2. The X-ray automatic leaf part penetration system according to claim 1, wherein, The clamp body has a stepped column hole at one end along its length, and a locking through hole at the top of the clamp body that is vertically opened and communicates with the stepped column hole. The stepped post hole is for the tenon and the blade to pass through, and the locking through hole is for the clamping end of the quick-locking assembly to pass through to lock the tenon.

3. The X-ray automatic leaf part penetration system according to claim 2, wherein, The quick-locking assembly includes a latch, a locking spring, and a pin; The latch includes a locking part, a connecting part, and a force-applying part connected in sequence; The locking part can extend into the vertically opened locking through hole on the clamp body and abut against the end face of the tenon along the tenon axis, so that the tenon is limited between the locking part and the stepped surface of the stepped column hole. The connecting part is connected to the top of the clamp body via the pin and the locking spring; the force-applying part is used to withstand the pressure applied by the operator; The connecting part is capable of rotating about the pin when the operator applies pressure to disengage the locking part from the locking through hole, and is also capable of rotating about the pin when the operator releases pressure to engage the locking part in the locking through hole.

4. The X-ray automatic leaf part penetration system according to claim 3, wherein, The end of the locking part has a wedge-shaped structure.

5. The X-ray automatic leaf part penetration system according to claim 4, wherein, The locking spring is made of spring steel and is subjected to quenching and medium-temperature tempering.

6. The X-ray automatic leaf part penetration system according to claim 5, wherein, The initial compression of the locking spring is 6-8 mm.

7. The X-ray automatic leaf part penetration system according to claim 2, wherein, The clamp body is a right-angled trapezoidal structure; the clamp body has a rectangular groove that is horizontally arranged from one end face and along the axial direction of the stepped column hole, the rectangular groove is located on one side of the stepped column hole and communicates with the stepped column hole; The width of the rectangular groove is adapted to the thickness of the blade at the mating position, and the bottom surface of the rectangular groove is on the same horizontal plane as the central axis of the blade; the rectangular groove is used to prevent the blade from rotating around the stepped column hole; On the other side of the stepped column hole, at a position corresponding to the rectangular groove, there is a clearance notch to ensure that the weld area of ​​the blade is not obstructed during radiographic illumination.

8. The X-ray automatic leaf part penetration system according to claim 7, wherein, The clamp body has a hollow structure at one end away from the rectangular slot. The hollow structure has symmetrically arranged triangular support arms on both sides, and the triangular support arms have weight reduction holes.

9. The X-ray automatic leaf part penetration system according to claim 8, wherein, The top surface of the turntable is evenly distributed with a number of first positioning pin holes in the circumferential direction, and the bottom of the hollow structure of the fixture body has a second positioning pin hole corresponding to the first positioning pin hole. Also included is a positioning pin that secures the fixture body to a turntable top surface through the first and second positioning pin holes.

10. The X-ray automatic transillumination system for blade-like parts according to any of claims 1 to 9, characterized in that, The fixture body is formed using nylon powder sintering 3D printing.

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