Self-adaptive imaging system of high-power X-ray detection equipment

Abstract

The utility model discloses a self-adaptive imaging system, belongs to the technical field of X-ray detection equipment, and particularly relates to a self-adaptive imaging system of high-power X-ray detection equipment, which comprises a linear module, a vision and distance measurement system and a detector rotating device. The vision and distance measurement system comprises a CCD (Charge Coupled Device) navigation camera, an LDS (Laser Direct Structuring) laser range finder and a rotary shading assembly, and is used for realizing accurate material identification, positioning tracking and detection height compensation; the detector rotating device comprises a driving motor, a hollow rotating platform, a mounting plate and a detector assembly; the detector assembly is driven through the hollow rotating platform, the rotating function of the detector is achieved, the rotating adjustment angle of the detector is controlled, and meanwhile it is guaranteed that the rotating positioning precision is smaller than or equal to 4 arcmin; the device is simple and compact in structure, reduces the occupied area of the structure to the maximum extent, is low in manufacturing cost, is wide in application range, and effectively improves the detection efficiency and the detection precision.

Description

Technical Field

[0001] The utility model discloses an adaptive imaging system, belonging to the technical field of X-ray detection equipment, and specifically relating to an adaptive imaging system for high-power X-ray detection equipment. Background Technique

[0002] The imaging system of X-ray detection equipment is a key part of the equipment, which is used to obtain the internal structure information of the object to be detected and generate an image. The following are the components of a common X-ray detection equipment imaging system:

[0003] X-ray source: Generates a high-energy X-ray beam, usually provided by an X-ray tube or a radioactive isotope. The selection of the X-ray source depends on the application requirements and safety requirements.

[0004] Detector: Receives and measures the X-ray intensity after passing through the object to be detected. Common detectors include scintillation detectors with scintillation crystals or semiconductor materials, gas ionization detectors, semiconductor detectors, etc. The detector converts the received signal into an electrical signal and transmits it to the imaging system for processing.

[0005] Image processing system: Receives the electrical signal from the detector and performs signal processing and image reconstruction. This includes operations such as removing background noise, enhancing image contrast, adjusting brightness and contrast, etc., to generate a clear image.

[0006] Data acquisition and control system: Responsible for controlling the operation of the entire imaging system, and acquiring, storing, and managing image data. It can control the on / off of the X-ray source, the position and parameters of the regulator, the working mode of the detector, etc.

[0007] Display and analysis system: Displays the processed image on a monitor for operators to observe and analyze. These systems are usually equipped with image analysis software, which can perform functions such as image enhancement, measurement, and defect detection.

[0008] In summary, the imaging system of X-ray detection equipment realizes imaging and analysis of the internal structure of the object to be detected through the coordinated work of the X-ray source, detector, image processing system, data acquisition and control system, and display and analysis system. This imaging system is widely used in the industrial field for quality control, safety inspection, medical imaging, etc.

[0009] The existing X-ray detection equipment imaging system still has the following problems:

[0010] 1. The laser rangefinder has low accuracy and cannot quickly obtain measurement results; at the same time, it does not have height compensation detection, so it cannot guarantee the detection position and accuracy;

[0011] 2. Errors may occur during manual measurement;

[0012] 3. The traditional imaging system has a complex structure, resulting in an excessive number of intermediate transmission components, increasing the cumulative error and thus greatly reducing the rotation accuracy. Summary of the Invention

[0013] Objective of the utility model: To provide an adaptive imaging system for a high-power X-ray detection device to solve the above-mentioned problems.

[0014] Technical solution: An adaptive imaging system for a high-power X-ray detection device, the adaptive imaging system comprising: a linear module, a vision and ranging system, and a detector rotation device;

[0015] The vision and ranging system includes a CCD navigation camera, an LDS laser rangefinder, and a rotating light-shielding component to achieve precise material identification, positioning and tracking, and detection height compensation;

[0016] The detector rotation device includes a driving motor, a hollow rotating platform, a mounting plate, and a detector assembly; the detector assembly is driven by the hollow rotating platform to achieve the detector rotation function and control the rotation angle of the detector for adjustment.

[0017] In a further embodiment, the detector rotation device is mounted on the linear module to move up and down following the linear module; the vision and ranging system is mounted on the detector rotation device to rotate following the detector rotation device.

[0018] In a further embodiment, the linear module includes: a linear motor, a transmission module, a linear lead screw, and a slide plate;

[0019] The transmission module is mounted at one end of the linear lead screw, and one end of the transmission module is connected to the rotating shaft of the linear motor, and the other end is connected to the lead screw of the linear lead screw; the slide plate is connected to the linear bearing in the linear lead screw to move on the linear lead screw.

[0020] In a further embodiment, the detector rotation device is fixedly mounted on the slide plate of the linear module through a connecting plate; the connecting plate is fixedly mounted on the slide plate, the driving motor is fixedly mounted on the hollow rotating platform, the hollow rotating platform is fixedly mounted on the two side connecting plates; the mounting plate is fixedly mounted on the hollow rotating platform; the detector assembly is fixedly mounted on the mounting plate.

[0021] In a further embodiment, the rotating light-shielding assembly in the vision and ranging system includes: a rotating motor, a protective plate, and a Z-axis mounting base plate; one end of the Z-axis mounting base plate is fixedly connected to the driving motor in the detector rotating device through connecting plates on both sides, the rotating motor is installed on one side of the Z-axis mounting base plate, the CCD navigation camera and the LDS laser rangefinder are fixedly installed on the Z-axis mounting base plate and on both sides of the rotating motor, and the protective plate is connected to the rotating shaft of the rotating motor to rotate following the rotating motor.

[0022] In a further embodiment, anti-collision blocks are provided on the connecting plates.

[0023] In a further embodiment, sensors are provided on the connecting plates, and induction sheets are provided on the hollow rotating platform.

[0024] In a further embodiment, sensors are provided on the linear lead screw, and induction sheets are provided on the sliding plate.

[0025] Advantages: The utility model has high measurement accuracy, fast speed, high efficiency and precision; the overall structure is compact and light in weight. The LDS laser rangefinder used in the utility model can achieve micron-level accuracy, and can quickly obtain measurement results, realize detection height compensation, ensure the detection position and accuracy, and greatly improve the detection efficiency. The non-contact measurement method is adopted, which will not damage the measured object and also avoids the errors that may occur during manual measurement. At the same time, the laser rangefinder is integrated with the automatic control system to realize automatic measurement and data recording, further improving the production efficiency. The utility model uses a hollow rotating platform as the rotating element and is directly driven by a motor, completely reducing the cumulative error of the intermediate transmission components, ensuring high-precision rotation, and realizing a positioning accuracy of ≤4 arcmin. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a left side view of the structure of the utility model;

[0027] Figure 2 It is a schematic diagram of the structure of the utility model;

[0028] Figure 3 It is an axonometric view of the structure of the utility model;

[0029] Figure 4 It is a schematic diagram of the structure of the rotating device of the imaging system of the utility model;

[0030] Figure 5 It is a schematic diagram of the structure of the vision and ranging system of the utility model

[0031] Reference numerals: linear module 1, vision and ranging system 2, detector rotating device 3, navigation camera 4, laser rangefinder 5, drive motor 7, hollow rotating platform 8, mounting plate 9, detector assembly 10, linear motor 11, transmission module 12, linear lead screw 13, slide plate 14, connecting plate 15, rotating motor 16, protective plate 17, mounting base plate 18, anti-collision block 19, inductor 20, induction piece 21. Detailed implementation manners

[0032] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0035] An adaptive imaging system for a high-power X-ray detection device, comprising: a linear module 1, a vision and ranging system 2, and a detector rotating device 3.

[0036] In one embodiment, as Figures 1 to 5 shown, the vision and ranging system 2 includes a CCD navigation camera 4, an LDS laser rangefinder 5, and a rotating light-shielding assembly to achieve accurate material identification, positioning and tracking, and detection height compensation;

[0037] The detector rotation device 3 includes a driving motor 7, a hollow rotating platform 8, a mounting plate 9, and a detector assembly 10; the detector assembly 10 is driven by the hollow rotating platform 8 to realize the detector rotation function and control the rotation adjustment angle of the detector.

[0038] In one embodiment, as Figures 1 to 5 shown, the detector rotation device 3 is installed on the linear module 1 to move up and down following the linear module 1; the vision and ranging system 2 is installed on the detector rotation device 3 to rotate following the detector rotation device 3.

[0039] In one embodiment, as Figures 1 to 5 shown, the linear module 1 includes: a linear motor 11, a transmission module 12, a linear lead screw 13, and a slide plate 14;

[0040] The transmission module 12 is installed at one end of the linear lead screw 13, and one end of the transmission module 12 is connected to the rotating shaft of the linear motor 11, and the other end is connected to the lead screw of the linear lead screw 13; the slide plate 14 is connected to the linear bearing in the linear lead screw 13 to move on the linear lead screw 13.

[0041] In one embodiment, as Figures 1 to 5 shown, the detector rotation device 3 is fixedly installed on the slide plate 14 of the linear module 1 through a connecting plate 15; the connecting plate 15 is fixedly installed on the slide plate 14, the driving motor 7 is fixedly installed on the hollow rotating platform 8, the hollow rotating platform 8 is fixedly installed on both sides of the connecting plate 15; the mounting plate 9 is fixedly installed on the hollow rotating platform 8; the detector assembly 10 is fixedly installed on the mounting plate 9.

[0042] In one embodiment, as Figure 5 shown, the rotating light-shielding component in the vision and ranging system 2 includes: a rotating motor 16, a protective plate 17, and a Z-axis mounting base plate 18; one end of the Z-axis mounting base plate 18 is fixedly connected to the driving motor 7 in the detector rotation device 3 through connecting plates 15 on both sides, the rotating motor 16 is installed on one side of the Z-axis mounting base plate 18, the CCD navigation camera 4 and the LDS laser rangefinder 5 are fixedly installed on the Z-axis mounting base plate 18 and are located on both sides of the rotating motor 16, and the protective plate 17 is connected to the rotating shaft of the rotating motor 16 to rotate following the rotating motor 16.

[0043] In one embodiment, as Figures 1 to 4 shown, the connecting plate 15 is provided with a collision prevention block 19.

[0044] In one embodiment, as Figures 1 to 4As shown, an inductor 20 is provided on the connecting plate 15, and an induction piece 21 is provided on the hollow rotating platform.

[0045] In one embodiment, as Figures 1 to 3 shown, an inductor 20 is provided on the linear lead screw 13, and an induction piece 21 is provided on the sliding plate 14.

[0046] Working principle: The vision and ranging system 2 includes an LDS laser rangefinder 5, a CCD navigation camera 4, and a light-shielding component. The LDS laser rangefinder 5, the CCD navigation camera 4, and the rotating light-shielding component are all fixedly installed on the Z-axis mounting base plate 18 through connecting plates. The light-shielding component includes a rotating motor 16, a Z-axis mounting base plate 18, and a protection plate 17. The protection plate 17 is composed of a steel plate, a lead plate, and a steel plate, and can effectively block X-rays. The protection plate 17 is connected to the rotating motor 16. When the device is to perform X-ray detection, the protection plate 17 is driven by the rotating motor 16 to rotate 90° to block X-rays and protect the LDS laser rangefinder 5 and the CCD navigation camera 4. When the LDS laser rangefinder 5 and the CCD navigation camera 4 are working, the rotating motor 16 drives the protection plate 17 to rotate back 90° to work. The vision and ranging system 2 is fixedly installed on the connecting plate 15 of the detector rotating device 3 through the Z-axis mounting base plate 18.

[0047] The detector rotating device 3 includes a driving motor 7, a mounting plate 9, a hollow rotating platform 8, and a detector assembly 10. The mounting plate 9 is fixedly installed on the hollow rotating platform 8. Three inductors 20 are provided on the connecting plate 15 and the hollow rotating platform 8. The detector assembly 10 is fixedly installed on the hollow rotating platform 8 through the mounting plate 9. The driving motor 7 drives the hollow rotating platform 8 to move, driving the detector assembly 10 to achieve high-precision rotation. An induction piece 21 is provided on the hollow rotating platform 8. When the rotating assembly drives the detector assembly 10 to rotate, when the inductors 20 on the left and right positions sense the induction piece 21, the detector rotating assembly stops moving. At the same time, limit blocks are provided on both sides of the connecting block, with anti-collision function.

[0048] The detector rotating device 3 is connected to the linear module 1, so that while the detector rotates, the distance between the detector, the radiation source, and the material can be adjusted according to the detection requirements.

[0049] Obviously, the above embodiments are only examples for clear illustration, and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An adaptive imaging system for high power X-ray detection equipment, characterized in that: The adaptive imaging system comprises: a linear module, a vision and ranging system, and a detector rotating device; The vision and distance measurement system includes a CCD navigation camera, an LDS laser distance meter and a rotating shading component to achieve accurate material identification, positioning tracking and detection height compensation; The detector rotating device includes a driving motor, a hollow rotating platform, a mounting plate and a detector assembly; the detector assembly is driven by the hollow rotating platform to realize the detector rotation function and control the detector rotation adjustment angle.

2. The adaptive imaging system of a high-power X-ray detection device according to claim 1, characterized in that: The detector rotating device is installed on the linear module to follow the linear module to move up and down; the vision and distance measurement system is installed on the detector rotating device to follow the rotation of the detector rotating device.

3. The adaptive imaging system of a high-power X-ray detection device according to claim 1, characterized in that: The linear module comprises: a linear motor, a transmission module, a linear lead screw and a slide plate; The transmission module is installed on one end of the linear screw, and one end of the transmission module is connected to the rotating shaft of the linear motor, and the other end is connected to the lead screw of the linear screw; the slide plate is connected to the linear bearing in the linear screw to move on the linear screw.

4. The adaptive imaging system of a high-power X-ray detection device according to claim 3, characterized in that: The detector rotating device is fixedly mounted on the slide of the linear module through a connecting plate; the connecting plate is fixedly mounted on the slide, the driving motor is fixedly mounted on the hollow rotating platform, and the hollow rotating platform is fixedly mounted on the connecting plates on both sides; the mounting plate is fixedly mounted on the hollow rotating platform; the detector assembly is fixedly mounted on the mounting plate.

5. The adaptive imaging system of a high-power X-ray detection device according to claim 4, characterized in that: The rotating shading component in the vision and ranging system includes: a rotating motor, a protective plate and a Z-axis mounting base plate; one end of the Z-axis mounting base plate is fixedly connected to the driving motor in the detector rotating device through connecting plates on both sides, the rotating motor is installed on one side of the Z-axis mounting base plate, the CCD navigation camera and the LDS laser rangefinder are fixedly installed on the Z-axis mounting base plate and are located on both sides of the rotating motor, and the protective plate is connected to the rotating shaft of the rotating motor to rotate with the rotating motor.

6. The adaptive imaging system of a high-power X-ray detection device according to claim 4, characterized in that: The connecting plate is provided with an anti-collision block.

7. The adaptive imaging system of a high power X-ray detection device according to claim 4, characterized in that: The connecting plate is provided with a sensor, and the hollow rotating platform is provided with a sensor sheet.

8. The adaptive imaging system of a high-power X-ray detection device according to claim 4, characterized in that: The linear lead screw is provided with a sensor, and the slide plate is provided with a sensor sheet.

Images