Industrial CT / DR equipment

Abstract

The invention provides industrial CT / DR equipment. The industrial CT / DR equipment comprises an operation table, a workpiece movement assembly, a detector movement assembly and a radiation source movement assembly, an operation opening penetrating through the upper surface and the lower surface of the operation table is formed in the table top of the operation table, and a workpiece moving assembly is arranged at the operation opening and used for installing a workpiece and enabling the workpiece to stay at any position of the operation opening. A detector movement assembly is arranged above the workpiece movement assembly, and a radiation source movement assembly is arranged below the detector movement assembly; accurate control of a workpiece in multiple dimensions is achieved, and meanwhile it is ensured that the positions of the detector and the radiation source can be flexibly adjusted to meet different detection requirements. The device is compact in structure and complete in function, can realize various CT / DR / CL scanning modes, and can select different magnification times to detect flat workpieces; and the complexity of system movement is greatly simplified, so that the reliability and the performance of equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial nondestructive testing, and in particular to an industrial CT / DR device. Background Art

[0002] Computed Tomography (CT) performs non-destructive testing on objects to obtain three-dimensional internal structure information, thereby analyzing the internal defects of the object. Industrial CT / DR equipment usually consists of a radiation source, a detector, a rotating platform and a computer system. The principle of CT technology is to allow X-rays to penetrate a rotating object and form an image on the detector. The internal density distribution of the object is obtained based on the attenuation of the X-rays by the object. It requires obtaining complete projection data to reconstruct a high-quality image. With the increasing number of flat-panel products used in the aerospace and electronics industries, the corresponding demand for non-destructive testing is also growing. Due to the limitations of radiation penetration thickness, object rotation diameter, detection accuracy, etc., these large-size flat-panel products are difficult to be effectively detected using CT scanning.

[0003] Digital Radiography (DR) can directly convert X-rays that penetrate objects into digital images through a detection and acquisition system. It is a direct imaging technology with a fast scanning speed, but the images overlap and are not three-dimensional, so it is impossible to obtain a clear image of a certain layer inside the object.

[0004] Therefore, Computed Laminography (CL) was introduced for the inspection of large-size flat-panel products. The CL scanning method allows X-rays to penetrate the product at a certain angle to the normal line of the flat-panel product surface and then form an image, thus overcoming the limitations of the CT scanning method in inspecting such products.

[0005] However, the current DR, CT and CL inspection equipment for flat-panel products in the industry has a single scanning method and complex system movement, which cannot meet the industry's growing inspection needs. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an industrial CT / DR device, which has a compact structure, complete functions, can realize a variety of CT / DR / CL scanning modes, and can select different magnifications to detect flat workpieces; and greatly simplifies the complexity of system movement, thereby improving the reliability and performance of the equipment.

[0007] According to an embodiment of the present invention, an industrial CT / DR device includes:

[0008] An operating table with an operating port;

[0009] A workpiece motion assembly, comprising a rotating platform, a first platform, and a second platform stacked in sequence from bottom to top, wherein the rotating platform is arranged on the operating table to rotate forward and reversely, the first platform is arranged on the rotating platform to slide back and forth along a first direction, and the second platform is arranged on the first platform to slide back and forth along a second direction, and the rotating platform, the first platform, and the second platform all have interconnected through holes for exposing the operating port;

[0010] A detector motion assembly is suspended above the operation port, and includes an upper slide and an array detector. The upper slide can slide back and forth along the second direction, and the array detector can swing forward and backward relative to the upper slide.

[0011] A ray source motion assembly is disposed below the operation port, the ray source motion assembly comprises a lower slide, a lifting slide and a micro-focus ray source, the lower slide is arranged on the operation table for reciprocating sliding along the second direction, the lifting slide can be lifted and lowered along the third direction relative to the lower slide, and the micro-focus ray source is arranged on the lifting slide;

[0012] The plane where the operation port is located is defined as a reference plane, any two of the first direction, the second direction and the third direction are perpendicular to each other, and the first direction and the second direction are both located on the reference plane; the rotation axis of the rotating platform is perpendicular to the reference plane, and the rotation axis passes through the midpoint of the detector motion assembly and the ray source motion assembly; the axis of the yaw motion of the planar array detector is perpendicular to the second direction;

[0013] The workpiece motion assembly, the detector motion assembly and the ray source motion assembly move independently of each other to form a DR scanning state, a linear CL scanning state, an orthogonal CL scanning state and a 3D planar CT scanning state.

[0014] Preferably, in the DR scanning state, the area array detector and the micro-focus ray source move in opposite directions, and the swing position of the area array detector is perpendicular to the central ray of the micro-focus ray source.

[0015] Preferably, in the linear CL scanning state, the area array detector and the micro-focus ray source move synchronously in opposite directions.

[0016] Preferably, in the orthogonal CL scanning state, the rotation angle of the rotating platform is 90°.

[0017] Preferably, in the 3D planar CT scanning state, the area array detector and the microfocus ray source move in opposite directions, and the swing position of the area array detector is perpendicular to the ray at the imaging center, and the rotation angle of the rotating platform is 360°.

[0018] Preferably, the workpiece motion assembly and / or the detector motion assembly and / or the ray source motion assembly further include a guide mechanism and a transmission mechanism connected to each other, the guide mechanism is a rolling linear guide pair, and the transmission mechanism is a ball screw pair.

[0019] Preferably, a plurality of latching teeth are disposed on the outer side of the rotating platform, and a gear is rotatably disposed on the operating table for meshing with the latching teeth; and / or

[0020] The upper slide is connected to a support frame via a deep groove ball bearing, and the support frame extends outward to form a plurality of support legs for connecting to the area array detector.

[0021] Preferably, the operating table is provided with an arch frame, the upper end of the arch frame is used to fix and support the detector motion assembly, and the lower end of the arch frame is configured as an arc-shaped inlet and outlet, and the inlet and outlet is provided with an automatic inlet and outlet mechanism.

[0022] Preferably, the second platform is provided with a floating adjustment assembly, which includes: a first adjustment block, a second adjustment block and a connecting rod mechanism, the first adjustment block and the second adjustment block are connected by a connecting rod mechanism, and one of the two adjustment blocks can float relative to the other for clamping the workpiece.

[0023] Preferably, the connecting rod mechanism includes a first connecting rod and a second connecting rod which are rotatably connected, the distal ends of the first connecting rod and the second connecting rod are respectively hinged to the first adjusting block and the second adjusting block, and an adjusting screw is threadedly provided between the first adjusting block and the second adjusting block.

[0024] Compared with the prior art, the present invention has the following beneficial effects: through the combination of the rotating platform, the first platform and the second platform, precise adjustment of the workpiece in multiple dimensions can be achieved, ensuring that the workpiece can be detected at the best angle and position, thereby improving the accuracy and efficiency of detection; at the same time, the detector can be moved along the second direction through the upper slide, and can be deflected in the positive and negative directions relative to the upper slide, while the radiation source can be moved in two different directions through the lower slide and the lifting slide, which can enable the device to realize multiple scanning modes of CT / DR / CL on the one hand, and ensure the stability and accuracy of the device when performing complex movements on the other hand by accurately defining the relationship between various directions and the coordination between moving parts; furthermore, different magnifications can be selected by lifting the radiation source along the third direction to detect flat-plate workpieces, and greatly simplifies the complexity of the system movement, thereby improving the reliability and performance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view of an industrial CT / DR device in one embodiment of the present invention;

[0026] Figure 2 It is a structural schematic diagram of an industrial CT / DR device in one embodiment of the present invention;

[0027] Figure 3 A schematic structural diagram of an industrial CT / DR device from another angle in an embodiment of the present invention;

[0028] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0029] In the figure:

[0030] 1. Operating table; 101. Reference plane; 2. Workpiece motion assembly; 201. Rotating platform; 202. First platform; 203. Second platform; 3. Detector motion assembly; 301. Upper slide; 302. Area array detector; 4. Radiation source motion assembly; 401. Lower slide; 402. Lifting slide; 403. Microfocus radiation source; 5. Gear; 6. Gear; 7. Support frame; 8. Arch frame; 9. Floating adjustment assembly; 901. First adjustment block; 902. Second adjustment block; 903. First connecting rod; 904. Second connecting rod; 905. Adjustment screw. DETAILED DESCRIPTION

[0031] It should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", etc. 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The following will be combined with the attached Figure 1-4 , the present invention is further described.

[0033] In the embodiment of the present invention, Figure 1-Figure 3 As shown, the industrial CT / DR equipment includes: an operating table 1, a workpiece motion component 2, a detector motion component 3 and a ray source motion component 4; the operating table 1 is provided with an operating port; the workpiece motion component 2 includes a rotating platform 201, a first platform 202 and a second platform 203 which are stacked in sequence from bottom to top, the rotating platform 201 is arranged on the operating table 1 for forward and reverse rotation, the first platform 202 is arranged on the rotating platform 201 for reciprocating sliding along a first direction, the second platform 203 is arranged on the first platform 202 for reciprocating sliding along a second direction, and the rotating platform 201, the first platform 202 and the second platform 203 all have connected through holes for exposing the operating port; The detector motion assembly 3 is suspended above the operation port, and the detector motion assembly 3 includes an upper slide 301 and an array detector 302. The upper slide 301 can slide back and forth along the second direction, and the array detector 302 can swing forward and backward relative to the upper slide 301; the ray source motion assembly 4 is arranged below the operation port, and the ray source motion assembly 4 includes a lower slide 401, a lifting slide 402 and a micro-focus ray source 403. The lower slide 401 slides back and forth along the second direction and is arranged on the operation table 1. The lifting slide 402 can lift and lower relative to the lower slide 401 along the third direction, and the micro-focus ray source 403 is arranged on the lifting slide 402;

[0034] Among them, the plane where the operation port is located is defined as the reference plane 101, any two of the first direction, the second direction and the third direction are perpendicular to each other, and the first direction and the second direction are both located on the reference plane 101; the rotation axis of the rotating platform 201 is perpendicular to the reference plane 101, and the rotation axis passes through the midpoint of the detector motion assembly 3 and the ray source motion assembly 4; the axis of the yaw motion of the array detector 302 is perpendicular to the second direction; the workpiece motion assembly 2, the detector motion assembly 3 and the ray source motion assembly 4 move independently of each other to form a DR scanning state, a linear CL scanning state, an orthogonal CL scanning state and a 3D planar CT scanning state.

[0035] Specifically, in an embodiment of the present invention, an operating port that runs through the upper and lower surfaces of the operating table 1 is provided on the table top, and a workpiece motion assembly 2 is provided at the operating port for installing the workpiece and allowing the workpiece to be stopped at any position of the operating port; a detector motion assembly 3 is provided above the workpiece motion assembly 2, and a ray source motion assembly 4 is provided below the workpiece motion assembly 2; in this way, precise control of the workpiece in multiple dimensions can be achieved, while ensuring that the detector and the ray source can flexibly adjust their positions to meet different detection requirements.

[0036] Specifically, the workpiece motion assembly 2 includes a rotating platform 201, a first platform 202 and a second platform 203, the rotating platform 201 can be rotatably arranged on the operating table 1, the first platform 202 is arranged to slide back and forth along the first direction, the second platform 203 is arranged on the first platform 202 to slide back and forth along the second direction, and the second platform 203 is provided with a mounting position for mounting the workpiece; in this way, the workpiece can be freely adjusted in multiple dimensions, ensuring the comprehensiveness and accuracy of the detection. The detector motion assembly 3 includes an upper slide 301 and an array detector 302, the upper slide 301 can slide back and forth along the second direction, and the array detector 302 is rotatably arranged on the upper slide 301; in this way, the array detector 302 can slide back and forth along the second direction while being deflected relative to the workpiece, and compared with the traditional linear motion only, the image of the workpiece can be captured at multiple angles, which can ensure that the best imaging effect can be obtained in different detection modes (such as DR, CL, CT). The radiation source motion assembly 4 comprises a lower slide 401, a lifting slide 402 and a micro-focus radiation source 403. The lower slide 401 can slide along the second direction, the lifting slide 402 can be lifted and lowered in three directions and is arranged on the lower slide 401, and the micro-focus radiation source 403 is arranged on the lifting slide 402. In this way, the multi-directional motion capability enables the radiation source to be accurately aimed at different parts of the workpiece. Moreover, the use of the micro-focus radiation source 403 can improve the resolution and clarity of the imaging, which is particularly suitable for occasions requiring high-precision detection.

[0037] Therefore, by constraining the moving direction of each moving component, the device can have four detection forms. DR scanning state: the workpiece is fixed, and the radiation source and detector perform rapid imaging at a fixed position, which is suitable for preliminary screening and rapid detection. Linear CL scanning state: the workpiece moves in one direction, and the radiation source and detector remain fixed or are fine-tuned, which is suitable for the detection of large-size flat products. Orthogonal CL scanning state: the workpiece moves in two orthogonal directions, and the radiation source and detector are adjusted accordingly to obtain more detailed internal structure information. 3D planar CT scanning state: the workpiece rotates on the rotating platform 201, and the radiation source and detector perform multi-angle imaging around the workpiece, and finally reconstruct the three-dimensional internal structure of the workpiece, which is suitable for comprehensive detection of workpieces with complex shapes.

[0038] This embodiment realizes seamless switching of multiple scanning modes through the multi-degree-of-freedom workpiece motion component 2, the flexible detector and the ray source motion component 4. It not only improves the efficiency and accuracy of detection, but also expands the application scope of the equipment, making it adaptable to different types of workpieces and detection requirements. Whether it is rapid screening or high-precision detection, it can provide reliable support.

[0039] Of course, in this embodiment, the first direction mentioned above is the Y-axis direction, the second direction is the X-axis direction, and the third direction is the Z-axis direction. The plane where the operation port is located is the reference plane 101, and the reference plane 101 is a horizontal plane. In other words, the first platform 202, the upper slide 301, and the lower slide 401 all slide back and forth along the Y-axis direction, that is, the planes where the three slide are parallel to each other and parallel to the reference plane 101. In addition, the micro-focus ray source 403 can slide back and forth along the Z-axis direction to adjust the magnification.

[0040] In one embodiment, in the DR scanning state, the area array detector 302 and the micro-focus ray source 403 move in opposite directions, and the swing position of the area array detector 302 is perpendicular to the central ray of the micro-focus ray source 403. Specifically, when the DR scanning motion mode is selected, the magnification is adjusted by the lifting and lowering motion of the micro-focus ray source 403, the imaging area is selected by the X and Y axial motion in the horizontal plane of the workpiece, the penetration angle is determined by the reverse translation motion of the ray source and the detector, and the swing angle of the detector is perpendicular to the central ray. DR penetration at different angles is achieved through "detector movement + swing - ray source movement - workpiece rotation".

[0041] By adjusting the magnification through the lifting and lowering movement of the micro-focus ray source 403, the magnification of the imaging can be precisely controlled, thereby obtaining high-resolution images at different scales. This adjustment method allows the user to select the best magnification according to actual needs, thereby improving the details and clarity of the imaging. The swing position of the array detector 302 is perpendicular to the central ray of the micro-focus ray source 403, which ensures the uniform distribution of the ray during the imaging process, reduces the distortion and distortion of the image, and improves the imaging quality. Through the X and Y axial movement of the workpiece in the horizontal plane, different imaging areas can be selected, making the detection more flexible and accurate, suitable for local detection of large-sized workpieces, and can quickly locate and inspect the designated area in detail, thereby improving the pertinence and efficiency of the detection. Through the reverse translation movement of the ray source and the detector, different illumination angles can be determined, thereby realizing multi-angle imaging, which helps to obtain more information about the internal structure of the workpiece, reduce overlap and occlusion in the image, and improve the comprehensiveness and accuracy of the detection. The swing angle of the detector is perpendicular to the central ray, which further increases the diversity of the imaging angles, making the images at different angles clearer and more complete, and helps to find potential defects and problems. As a result, imaging at multiple angles can be completed in a short time, thereby improving the detection efficiency. The entire inspection process can be controlled by programming to achieve automated operation, reducing manual intervention and improving the consistency and reliability of inspection. Users can automatically complete complex inspection tasks through preset programs, saving time and labor costs. Through the multi-degree-of-freedom movement of the workpiece, the radiation source and the detector, each step can be precisely controlled to ensure that each imaging achieves the best effect, which helps to reduce human errors and improve the accuracy and reliability of inspection. In addition, through multi-angle imaging and the swing of the detector, the overlap in the image can be reduced, making each imaging area clearer, which helps to find subtle defects and structural changes. Users can select different movement modes and parameter settings through simple interface operations, without complex manual adjustments, which improves the convenience of operation and user experience.

[0042] In one embodiment, in the linear CL scanning state, the area array detector 302 and the micro-focus ray source 403 move synchronously in opposite directions. Specifically, when the linear CL scanning motion mode is selected, the magnification is adjusted by the lifting motion of the micro-focus ray source 403, the imaging area is selected by the X and Y motions in the horizontal plane of the workpiece, and the scanning is realized by the synchronous reverse translation motion of the ray source and the detector, and the imaging area of ​​the detector is always horizontal.

[0043] By adjusting the magnification through the lifting and lowering movement of the micro-focus ray source 403, the magnification of the imaging can be precisely controlled, so as to obtain high-resolution images at different scales; so that the user can select the best magnification according to actual needs to improve the details and clarity of the imaging. The imaging area of ​​the detector is always horizontal, which ensures the uniformity and consistency of the image during the imaging process, reduces the image distortion and distortion caused by tilt, and improves the imaging quality. Through the X and Y axial movement of the workpiece in the horizontal plane, different imaging areas can be selected, making the detection more flexible and accurate, suitable for local detection of large-sized workpieces, and can quickly locate and check the designated area in detail, improving the pertinence and efficiency of the detection. Through the synchronous reverse translation movement of the ray source and the detector, imaging at multiple angles can be achieved, which helps to obtain more information about the internal structure of the workpiece, reduce overlap and occlusion in the image, and improve the comprehensiveness and accuracy of the detection. In addition, the synchronous reverse movement can reduce the image overlap caused by inconsistent movement, ensure that the image at each position has a high clarity, and help to find subtle defects and structural changes. By optimizing the above-mentioned movement mode, imaging at multiple angles can be completed in a short time, thereby improving detection efficiency, balancing the stress of the mechanical system, reducing mechanical wear and fatigue caused by unilateral movement, and extending the service life of the equipment; the balanced movement mode helps to maintain the stable performance of the system, reduce vibration and shaking, and improve the stability and consistency of imaging; it can ensure that the relative position between the radiation source and the detector is always consistent, thereby improving the accuracy of imaging, helping to reduce imaging errors caused by position deviations, and ensuring the authenticity and reliability of the image.

[0044] In one embodiment, in the orthogonal CL scanning state, the rotation angle of the rotating platform 201 is 90°. Specifically, when the orthogonal CL scanning motion mode is selected, a linear CL scan is performed first, then the workpiece is rotated 90°, and then a linear CL scan is performed again.

[0045] Through two linear CL scans, imaging is performed in two orthogonal directions respectively, which can fully cover the internal structure of the workpiece, reduce overlap and occlusion in the image, and ensure that all key parts are detected. The two scans can complement each other, reduce the blind area caused by scanning in a single direction, improve the comprehensiveness and accuracy of the detection, and obtain higher resolution images. Scanning in each direction can provide detailed internal structure information. Combining the data of the two can generate a more refined three-dimensional model, improve the authenticity and reliability of the image. Users can choose whether to perform orthogonal CL scanning or only perform one linear CL scan according to specific needs, which improves the flexibility and adaptability of the equipment. The entire orthogonal CL scanning process can be controlled by programming to achieve automatic operation. The 90° rotation of the rotating platform 201 and the two linear CL scans can be completed automatically, reducing manual intervention and improving the consistency and reliability of detection. Although two scans are performed, since each scan is a linear CL scan, the imaging speed is fast, and the overall detection time is still short, which is suitable for large-scale production environments. Scanning in two orthogonal directions can balance the stress of the mechanical system, reduce mechanical wear and fatigue caused by unilateral movement, and extend the service life of the equipment; it helps to maintain the stable performance of the system, reduce vibration and shaking, and improve the stability and consistency of imaging. That is, by rotating the rotating platform 201 by 90°, the relative positions of the two scans can be ensured to be consistent, thereby improving the accuracy of imaging and helping to reduce imaging errors caused by position deviation. The data of the two scans can be fused to generate a more accurate three-dimensional model, thereby improving the accuracy and reliability of detection.

[0046] In one embodiment, in the 3D planar CT scanning state, the planar array detector 302 and the micro-focus ray source 403 move in opposite directions, and the swing position of the planar array detector 302 is perpendicular to the ray at the imaging center, and the rotation angle of the rotating platform 201 is 360°. Specifically, when the 3D planar CT scanning motion mode is selected, the magnification is adjusted by the lifting and lowering motion of the micro-focus ray source 403, the imaging area is selected by the X and Y movements in the horizontal plane of the workpiece, the penetration angle is determined by the reverse translation motion of the ray source and the detector, and the swing angle of the detector is perpendicular to the ray passing through the imaging center of the detector.

[0047] The scanning is achieved by continuously rotating the workpiece 360°. Data is collected from multiple angles to ensure the comprehensiveness and integrity of the data, so as to generate high-resolution three-dimensional images and show the internal structure and defects of the workpiece in detail. The swing position of the array detector 302 is perpendicular to the ray of the imaging center, which ensures that the imaging data at each angle has a high degree of geometric consistency, reduces the distortion and distortion of the image, and improves the accuracy and clarity of the imaging. The 360° rotation scanning ensures that every part of the workpiece is detected, eliminates the detection dead angle, and improves the comprehensiveness and accuracy of the detection. Through the continuous rotation of the workpiece and multi-angle data collection, images of multiple levels can be generated, thereby realizing multi-level internal structure detection, which helps to find hidden defects and structural problems. Through the X and Y axial movement of the workpiece in the horizontal plane, different imaging areas can be selected, making the detection more flexible and accurate. In the 3D planar CT scanning state, through the opposite direction movement of the array detector 302 and the micro-focus ray source 403, the 360° rotation of the workpiece and the multi-angle data collection, high-resolution, comprehensive, efficient and automated three-dimensional imaging is achieved. It not only improves the imaging quality and detection efficiency, but also expands the application scope of the equipment, enabling it to play an important role in a variety of industrial detection scenarios. Users can choose the most suitable detection method according to their specific needs to ensure the accuracy and reliability of the detection results.

[0048] like Figure 1-Figure 3 As shown, in one embodiment, the workpiece motion assembly 2 and / or the detector motion assembly 3 and / or the ray source motion assembly 4 also include a connected guide mechanism and a transmission mechanism, wherein the guide mechanism is a rolling linear guide pair, and the transmission mechanism is a ball screw pair. Specifically, in order to drive each motion assembly to move within a specified path, each motion assembly includes a connected guide mechanism and a transmission mechanism. The transmission mechanism can provide driving force, and the guide mechanism performs guiding and positioning, so that the device has a high degree of automation and improves the detection accuracy of the device.

[0049] Specifically, the guide mechanism is a rolling linear guide pair, and the transmission mechanism is a ball screw pair. For the workpiece motion assembly 2, the rotating platform 201 and the first platform 202 are both provided with the above two mechanisms, so that the first platform 202 and the second platform 203 slide back and forth in the first direction and the second direction respectively. For the detector motion assembly 3, the upper slide 301 is provided with a guide mechanism for driving the upper slide 301 to slide back and forth in the second direction. For the ray source motion assembly 4, the lower slide 401 and the lifting slide 402 are independently driven by two groups of the above mechanisms respectively, so as to achieve the purpose of the two slides to move back and forth in the second direction and the third direction respectively. On the other hand, the rolling linear guide pair has the characteristics of low friction, high rigidity and high precision, which can ensure the stability and accuracy of the workpiece, detector and ray source during the movement, can reduce the error in the movement, and improve the clarity and resolution of the imaging. The ball screw pair has high transmission accuracy and high efficiency, and can achieve precise displacement control. Through the precise transmission of the ball screw pair, it can be ensured that each moving part is accurately positioned at the predetermined position, thereby improving the accuracy and reliability of detection.

[0050] like Figure 2 As shown, in one embodiment, a plurality of latch teeth 5 are arranged on the outer side of the rotating platform 201, and a gear 6 is arranged on the operating platform 1 for engagement with the latch teeth 5. Specifically, in order to drive the rotating platform 201 to rotate with the operating platform 1, in this embodiment, a plurality of latch teeth 5 are arranged around the outer side of the rotating platform 201, and a gear 6 is arranged on the operating platform 1 for engagement. The gear 6 serves as a driving source for the rotating platform 201, and after engaging with the latch teeth 5, the rotating platform 201 can be driven to rotate. Of course, all the driving mechanisms of the above movements need to be equipped with a reducer.

[0051] like Figure 1-Figure 3 As shown, in one embodiment, the upper slide 301 is connected to the support frame 7 via a deep groove ball bearing, and the support frame 7 extends outward to form a plurality of support legs for connecting the area array detector 302. Specifically, in order to rotatably install the inverted area array detector 302 on the upper slide 301, this embodiment rotatably installs a support frame 7 on the upper slide 301, and the support frame 7 is integrally formed with a plurality of support legs, which can be used to install the area array detector 302, thereby improving its stability during movement.

[0052] like Figure 1-Figure 3As shown, in one embodiment, the operating table 1 is provided with an arch 8, the upper end of the arch 8 is used to fix and support the detector motion assembly 3, and the lower end thereof is configured as an arc-shaped inlet and outlet, and the inlet and outlet is provided with an automatic inlet and outlet mechanism. Specifically, the design of the arch 8 not only provides a stable support structure, but also can effectively disperse and absorb the forces generated during the movement, ensure the stability of the equipment in high-precision movement, and reduce the imaging error caused by vibration and shaking. In addition, the inlet and outlet is provided with an automatic inlet and outlet mechanism (such as: the cooperation of a conveyor belt and a manipulator), which can realize the automatic loading and unloading of workpieces, greatly improve the efficiency of detection, reduce labor intensity, and improve production efficiency. The equipment is installed in a radiation protection workshop to avoid radiation to the outside world. The radiation protection workshop can be a movable protection workshop or a fixed protection workshop.

[0053] like Figure 3 , Figure 4As shown, in one embodiment, the second platform 203 is provided with a floating adjustment component 9, the floating adjustment component 9 includes: a first adjustment block 901, a second adjustment block 902 and a connecting rod mechanism, the first adjustment block 901 and the second adjustment block 902 are connected by the connecting rod mechanism, and one of the two adjustment blocks can float relative to the other, for clamping the workpiece. Specifically, in order to fix the workpiece at the second platform 203; in this embodiment, by setting a floating adjustment component 9 at the second platform 203 (the number and position of the floating adjustment component 9 can be determined according to actual installation needs), the floating adjustment component 9 includes a first adjustment block 901, a second adjustment block 902 and a connecting rod mechanism, the first adjustment block 901 can float relative to the second adjustment block 902 along the third direction, and the second adjustment block 902 is fixed at the second platform 203, in this process, the connecting rod mechanism is used to change the spacing between the first adjustment block 901 and the second adjustment block 902, so as to clamp or release the workpiece therebetween. Of course, in order to reduce the occlusion of the workpiece by the first adjustment block 901 and / or the second adjustment block 902, the corresponding adjustment block is a hollow structure. In other embodiments, the following methods can also be adopted to reduce the occlusion of the workpiece: ① During installation, try to set the fixing point at the edge or corner of the workpiece to reduce the occlusion of the main scanning area of ​​the workpiece; or use small fixing points or fixings to reduce the occlusion area. ② Use transparent or penetrable materials: If the scanning device supports scanning through transparent materials, a transparent fixture can be used. ③ For certain specific scanning technologies, penetrable materials can be used as fixtures. ④ By scanning from multiple angles, the complete workpiece model can be spliced ​​in post-processing to avoid the occlusion of the fixture. ⑤ Design a detachable fixture that can be quickly removed and re-fixed after completing the scan at a certain angle to scan at other angles. ⑥ Use a temporary fixing method to facilitate adjustment at different scanning stages. ⑦ Use professional scanning software to remove the influence of the fixture through an algorithm. ⑧ Manually edit the scan data, remove the part of the fixture, and then splice and repair the data. ⑨ Design a customized fixing solution based on the shape of the specific workpiece and the scanning requirements to ensure that the fixing device does not block the key area as much as possible. ⑩ Add auxiliary marks or feature points on the workpiece to help the equipment better identify and align the scanning data at different angles, thereby reducing the error caused by occlusion.

[0054] Further, in one embodiment, the connecting rod mechanism includes a first connecting rod 903 and a second connecting rod 904 that are rotatably connected, and the two distal ends of the first connecting rod 903 and the second connecting rod 904 are respectively hinged to the first adjusting block 901 and the second adjusting block 902, and an adjusting screw 905 is threadedly inserted between the first adjusting block 901 and the second adjusting block 902. Specifically, when it is necessary to clamp the workpiece, the first adjusting block 901 and the second adjusting block 902 are brought closer to each other by rotating the adjusting screw 905; the first connecting rod 903 and the second connecting rod 904 are adjusted with the rotation of the adjusting screw 905 to ensure that the first adjusting block 901 and the second adjusting block 902 remain parallel during the approach process. Due to the constraints of the connecting rod mechanism, the first adjusting block 901 and the second adjusting block 902 can be automatically centered during the approach process to ensure that the workpiece is in the correct position when clamped. When the workpiece needs to be released, the adjusting screw 905 is rotated in the opposite direction to move the first adjusting block 901 and the second adjusting block 902 away from each other. The two connecting rods are adjusted with the reverse rotation of the adjusting screw 905 to ensure that the first adjusting block 901 and the second adjusting block 902 remain parallel during the process of moving away. The workpiece can be taken out smoothly after release without affecting the subsequent loading and unloading of the workpiece. The connecting rod mechanism can ensure that the first adjusting block 901 and the second adjusting block 902 are automatically aligned during the approach process, reducing the imaging error caused by inaccurate workpiece position. The rotation of the adjusting screw 905 can evenly transmit pressure, ensure that the workpiece is subjected to uniform clamping force during the clamping process, and avoid deformation or damage of the workpiece caused by excessive local pressure. The synergistic effect of the connecting rod mechanism and the adjusting screw 905 can reduce the mechanical damage of the workpiece during the clamping process; at the same time, the floating adjustment assembly 9 can adapt to workpieces of different sizes and shapes, ensuring that each workpiece can be firmly clamped, improving the stability and reliability of detection. After the workpiece is firmly clamped, the vibration and shaking during the detection process can be reduced, the stability and clarity of the imaging can be improved, the loading and unloading time of the workpiece can be shortened, the detection efficiency can be improved, it has high flexibility, strong compatibility, and can be processed in batches.

[0055] Through the design of the connecting rod mechanism and the adjusting screw 905, the floating adjustment component 9 of the equipment realizes the precise clamping and quick loading and unloading of the workpiece, improves the accuracy and efficiency of the detection, and protects the integrity and surface quality of the workpiece. It not only simplifies the operation process and improves the user experience, but also expands the application scope of the equipment, enabling it to play an important role in a variety of industrial detection scenarios. Users can choose the most suitable detection method according to specific needs to ensure the accuracy and reliability of the detection results.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An industrial CT / DR device, characterized in that: include: An operating table with an operating port; A workpiece motion assembly, comprising a rotating platform, a first platform, and a second platform stacked in sequence from bottom to top, wherein the rotating platform is arranged on the operating table to rotate forward and reversely, the first platform is arranged on the rotating platform to slide back and forth along a first direction, and the second platform is arranged on the first platform to slide back and forth along a second direction, and the rotating platform, the first platform, and the second platform all have interconnected through holes for exposing the operating port; A detector motion assembly is suspended above the operation port, and includes an upper slide and an array detector. The upper slide can slide back and forth along the second direction, and the array detector can swing forward and backward relative to the upper slide. A ray source motion assembly is disposed below the operation port, the ray source motion assembly comprises a lower slide, a lifting slide and a micro-focus ray source, the lower slide is arranged on the operation table for reciprocating sliding along the second direction, the lifting slide can be lifted and lowered along the third direction relative to the lower slide, and the micro-focus ray source is arranged on the lifting slide; The plane where the operation port is located is defined as a reference plane, any two of the first direction, the second direction and the third direction are perpendicular to each other, and the first direction and the second direction are both located on the reference plane; the rotation axis of the rotating platform is perpendicular to the reference plane, and the rotation axis passes through the midpoint of the detector motion assembly and the ray source motion assembly; the axis of the yaw motion of the planar array detector is perpendicular to the second direction; The workpiece motion assembly, the detector motion assembly and the ray source motion assembly move independently of each other to form a DR scanning state, a linear CL scanning state, an orthogonal CL scanning state and a 3D planar CT scanning state.

2. An industrial CT / DR device according to claim 1, characterized in that: In the DR scanning state, the area array detector and the micro-focus ray source move in opposite directions, and the swing position of the area array detector is perpendicular to the central ray of the micro-focus ray source.

3. The industrial CT / DR device according to claim 1, characterized in that: In the linear CL scanning state, the area array detector and the micro-focus ray source move synchronously in opposite directions.

4. The industrial CT / DR device according to claim 1, characterized in that: In the orthogonal CL scanning state, the rotation angle of the rotating platform is 90°.

5. The industrial CT / DR device according to claim 1, characterized in that: In the 3D planar CT scanning state, the area array detector and the micro-focus ray source move in opposite directions, and the swing position of the area array detector is perpendicular to the ray at the imaging center, and the rotation angle of the rotating platform is 360°.

6. An industrial CT / DR device according to any one of claims 1 to 5, characterized in that: The workpiece motion assembly and / or the detector motion assembly and / or the ray source motion assembly further include a guide mechanism and a transmission mechanism connected to each other, wherein the guide mechanism is a rolling linear guide pair, and the transmission mechanism is a ball screw pair.

7. An industrial CT / DR device according to claim 6, characterized in that: The outer side of the rotating platform is provided with a plurality of latching teeth, and the operating table is rotatably provided with gears for meshing with the latching teeth; and / or The upper slide is connected to a support frame via a deep groove ball bearing, and the support frame extends outward to form a plurality of support legs for connecting to the area array detector.

8. The industrial CT / DR device according to claim 1, characterized in that: The operating table is provided with an arch frame, the upper end of the arch frame is used to fix and support the detector motion component, and the lower end of the arch frame is configured as an arc-shaped inlet and outlet, and the inlet and outlet is provided with an automatic inlet and outlet mechanism.

9. The industrial CT / DR device according to claim 1, characterized in that: The second platform is provided with a floating adjustment component, which includes: a first adjustment block, a second adjustment block and a connecting rod mechanism. The first adjustment block and the second adjustment block are connected by the connecting rod mechanism, and one of the two adjustment blocks can float relative to the other for clamping the workpiece.

10. The industrial CT / DR device according to claim 9, characterized in that: The connecting rod mechanism includes a first connecting rod and a second connecting rod which are rotatably connected. The distal ends of the first connecting rod and the second connecting rod are respectively hinged to the first adjusting block and the second adjusting block. An adjusting screw is threadedly provided between the first adjusting block and the second adjusting block.

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