Desktop type CT detection device

Abstract

The invention relates to the technical field of battery cell detection, and discloses a desktop type CT detection device which comprises a shell, an X-ray tube assembly, a flat plate assembly, a carrier and a four-axis adjusting assembly, a detection cavity is formed in the shell, the X-ray tube assembly and the flat plate assembly are both located in the detection cavity, the carrier is located between the X-ray tube assembly and the flat plate assembly, and the four-axis adjusting assembly is located between the X-ray tube assembly and the flat plate assembly. The four-axis adjusting assembly is arranged in the detection cavity, is detachably connected with the carrier and is used for adjusting the position of the carrier, so that the detection sample corresponds to the X-ray tube assembly and the flat plate assembly; the four-axis adjusting assembly is arranged in the detection cavity and detachably connected with the carrier, when the carrier has position deviation or positioning errors, the three-dimensional space position of the carrier can be accurately adjusted so as to correspond to the X-ray tube assembly and the flat plate assembly, the automatic adjusting effect is achieved, steps can be effectively saved, and the detection efficiency can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of CT detection technology, and more specifically to a desktop CT detection device. Background Technology

[0002] In the current booming development of the new energy battery manufacturing industry, the battery cell, as the core component of the battery, directly affects the battery's safety and lifespan through parameters such as the integrity of its internal structure, the uniformity of material distribution, and the quality of welding. X-ray inspection, with its non-destructive and high-penetration characteristics, has become a key technology for quality control in the battery cell production process. From the precision inspection of electrode stacking to the investigation of internal solder joint defects and short-circuit hazards, this technology is relied upon to achieve full-process quality control.

[0003] Currently, the cell carriers in testing platforms are generally only equipped with an R-axis (vertical rotation axis) and only support in-situ rotation. For example, the invention patent with publication number CN116952171A discloses a "CT inspection system and method for stacked batteries," in which the cell only rotates through a hollow rotating platform and cannot move in-situ. This design has obvious limitations. When the carrier shifts or its internal positioning structure has errors, the cell carrier cannot automatically align with the CT equipment. In this case, the only solutions are to replace the carrier or manually adjust it. However, both replacing the carrier and manual adjustment are extremely cumbersome, not only consuming a lot of time and manpower but also significantly reducing testing efficiency and seriously affecting the continuity and smoothness of the overall testing work.

[0004] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a desktop CT detection device, which aims to solve the problem that the replacement or adjustment steps are cumbersome when the carrier is misaligned or the positioning structure inside the carrier is erroneous, thus affecting the detection efficiency.

[0006] The technical solution adopted by this invention to solve the technical problem is as follows: A desktop CT scanner includes: The housing contains a detection chamber. An X-ray tube assembly is disposed within the detection cavity; A flat panel assembly is disposed within the detection cavity; the flat panel assembly is arranged opposite to the X-ray tube assembly. A carrier, located between the X-ray tube assembly and the flat panel assembly, is used to place the test sample; A four-axis adjustment assembly is disposed within the detection chamber; the four-axis adjustment assembly is detachably connected to the carrier and is used to adjust the position of the carrier so that the detection sample corresponds to the X-ray tube assembly and the flat panel assembly.

[0007] Furthermore, the four-axis adjustment assembly includes: A lifting assembly is disposed within the detection cavity; A displacement platform is disposed on the surface of the lifting assembly; the lifting assembly is used to drive the displacement platform to move up and down. A hollow rotating platform is disposed on the surface of the displacement platform; the displacement platform is used to drive the hollow rotating platform to move laterally and longitudinally, and the carrier is located on the surface of the hollow rotating platform.

[0008] Furthermore, the lifting assembly includes: A fixing plate is disposed inside the detection cavity; a threaded hole is provided in the middle of the fixing plate; A sliding rod is slidably mounted on the fixed plate; one end of the sliding rod is connected to the displacement platform. A mounting plate is disposed at the end of the slide bar away from the displacement platform and located outside the detection cavity; a motor is disposed on the mounting plate; The first lead screw is rotatably mounted on the mounting plate and connected to the motor; the first lead screw is threadedly engaged with the threaded hole.

[0009] Furthermore, the X-ray tube assembly includes: X-ray tube emitter; The first fixing shell is disposed on the outside of the X-ray tube emitter and wraps around the X-ray tube emitter; A first sliding plate is slidably disposed inside the detection cavity; a first fixed shell is located on the surface of the first sliding plate; The first adjustment component is located inside the detection cavity and is used to drive the first sliding plate closer to or further away from the four-axis adjustment component.

[0010] Furthermore, the first adjustment component includes: The first drive motor is disposed inside the detection cavity; The second lead screw has one end mounted on the output shaft of the first drive motor and the other end rotatably mounted on the inner wall of the detection cavity. The first slider is slidably disposed inside the detection cavity; the first slider is threadedly engaged with the second lead screw, and the top of the first slider is connected to the first sliding plate.

[0011] Furthermore, the first fixing shell includes: The first plate is disposed on the surface of the first sliding plate; Two second plates are respectively disposed on both sides of the first plate; each of the two second plates has a first waist-shaped countersink hole on the opposite side; The third plate is disposed on the first plate and located between the two second plates; the third plate is provided with fixing threaded holes on both sides near the two second plates, the fixing threaded holes are engaged with the first waist-shaped countersunk hole and connected by bolts; The first adjusting screw is threadedly disposed at the bottom of the first plate; one end of the first adjusting screw abuts against the bottom of the third plate.

[0012] Furthermore, the flat panel assembly includes: The second sliding plate is slidably disposed inside the detection cavity; An inclined plate is rotatably mounted on the second sliding plate; The first adjustment plate is slidably disposed on the side of the inclined plate near the four-axis adjustment assembly; A lifting adjustment bolt is rotatably mounted on the top of the inclined plate; the lifting adjustment bolt is threadedly engaged with the first adjustment plate; A flat mounting plate is rotatably mounted on the first adjusting plate; A flat panel detector is mounted on the flat panel mounting plate; A rotary adjusting bolt is rotatably mounted on the inclined plate; the rotary adjusting screw abuts against the flat plate mounting plate; An tilt adjustment bolt is rotatably mounted on the second sliding plate; one end of the tilt adjustment bolt abuts against the tilt plate. The second adjustment component is disposed inside the detection cavity and is used to drive the second sliding plate to move closer to or away from the four-axis adjustment component.

[0013] Furthermore, the second adjustment component includes: The second drive motor is located inside the detection cavity; The third lead screw has one end set on the output shaft of the second drive motor and the other end set on the inner wall of the detection cavity; The second slider is slidably disposed inside the detection cavity; the second slider is threadedly engaged with the third lead screw, and the top of the second slider is connected to the second sliding plate.

[0014] Furthermore, the top of the carrier is provided with a placement slot for placing test samples.

[0015] Furthermore, it also includes: A U-shaped support frame is provided at the bottom of the housing to support the housing; the interior of the U-shaped support frame is provided with a U-shaped groove for placing electronic control components.

[0016] Compared with the prior art, the beneficial effects of the present invention are: In this invention, the housing contains a detection cavity, with the X-ray tube assembly and the flat panel assembly located inside the detection cavity. A carrier is positioned between the X-ray tube assembly and the flat panel assembly. A four-axis adjustment assembly is disposed inside the detection cavity and is detachably connected to the carrier. This assembly is used to adjust the position of the carrier so that the sample being tested corresponds to the X-ray tube assembly and the flat panel assembly. By setting the four-axis adjustment assembly inside the detection cavity and detachably connecting it to the carrier, when the carrier experiences positional deviation or positioning error, the three-dimensional spatial position of the carrier can be precisely adjusted to correspond to the X-ray tube assembly and the flat panel assembly, achieving an automated adjustment effect. This effectively saves steps and improves detection efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the internal structure of the housing of the present invention.

[0019] Figure 3 This is a schematic diagram of the X-ray tube assembly and flat panel assembly of the present invention.

[0020] Figure 4 This is a schematic diagram of the four-axis adjustment assembly of the present invention.

[0021] Figure 5 This is a schematic diagram of the X-ray tube assembly structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the first fixed shell structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the flat panel assembly structure of the present invention.

[0024] Figure 8 This is a schematic diagram of the tilt adjustment bolt structure of the present invention.

[0025] Figure 9 This is a schematic diagram of the arc-shaped countersunk hole structure of the present invention.

[0026] Figure 10 for Figure 9 A magnified structural diagram at point A in the diagram.

[0027] Figure 11 This is a schematic diagram of the adjusting rotating shaft structure of the present invention.

[0028] The numbers in the diagram represent: 1. Housing; 11. Detection cavity; 2. X-ray tube assembly; 21. X-ray tube emitter; 22. First fixed housing; 221. First plate; 222. Second plate; 223. Third plate; 224. First oblong countersunk hole; 225. Fixed threaded hole; 226. First adjusting bolt; 23. First sliding plate; 24. First adjusting assembly; 3. Flat plate assembly; 31. Second sliding plate; 311. Arc-shaped countersunk hole; 32. Inclined plate; 33. First adjusting plate; 331. Arc-shaped fixing hole; 34. Lifting and adjusting bolt; 35. Flat plate mounting plate; 351. Adjusting rotation shaft; 36. Flat plate detector; 37. Rotation adjusting bolt; 38. Tilt adjusting bolt; 39. Second adjusting assembly; 4. Carrier; 5. Four-axis adjusting assembly; 51. Lifting assembly; 511. Fixing plate; 512. Slide rod; 513. Mounting plate; 514. First lead screw; 515. Motor; 52. Displacement platform; 53. Hollow rotating platform; 6. U-shaped support frame; 7. Test sample. Detailed Implementation

[0029] To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] In view of the shortcomings of the prior art, this embodiment provides a desktop CT detection device, which can be referred to as follows: As attached Figure 1 and attached Figure 2 As shown, a desktop CT scanner includes a housing 1, an X-ray tube assembly 2, a flat panel assembly 3, a carrier 4, and a four-axis adjustment assembly 5. The housing 1 has a detection cavity 11 inside, and the X-ray tube assembly 2 and the flat panel assembly 3 are both located inside the detection cavity 11 and are arranged opposite to each other. The carrier 4 is located between the X-ray tube assembly 2 and the flat panel assembly 3 and is used to place the detection sample 7. The four-axis adjustment assembly 5 is disposed inside the detection cavity 11 and is detachably connected to the carrier 4 to adjust the position of the carrier 4 so that the detection sample 7 corresponds to the X-ray tube assembly 2 and the flat panel assembly 3.

[0033] The housing 1 serves as the basic framework of the entire detection device, and its interior forms a closed detection chamber 11, providing a stable and safe environment for the detection work. Inside the detection chamber 11, an X-ray tube assembly 2 and a flat panel assembly 3 are arranged in a relative position, located at opposite ends of the detection chamber 11. The X-ray tube assembly 2 emits X-rays, while the flat panel assembly 3 receives the X-rays after they pass through the sample 7. Working together, they achieve scanning and imaging of the sample 7.

[0034] The carrier 4, located at the core between the X-ray tube assembly 2 and the flat panel assembly 3, is a key component for placing the test sample 7. Its design fully considers the placement requirements of different types of test samples 7, featuring a stable support structure and a suitable sample fixing device to ensure the stability of the test sample 7 during the testing process and avoid affecting the accuracy of the test results due to factors such as shaking.

[0035] The four-axis adjustment component 5, the core innovation of this detection device, is located inside the detection chamber 11 and is detachably connected to the carrier 4. The four-axis adjustment component 5 includes X, Y, Z, and R axes. The X, Y, and Z axes correspond to the horizontal, vertical, and longitudinal directions in three-dimensional space, respectively, while the R axis enables vertical rotation. During actual detection, if the carrier 4 experiences positional shifts or positioning errors, causing the sample 7 to fail to accurately align with the X-ray tube assembly 2 and the flat panel assembly 3, the X, Y, and Z axes, driven by a precision motor 515 and transmission mechanism, can precisely adjust the position of the carrier 4 in three-dimensional space, enabling horizontal left-right and forward-backward movement as well as vertical lifting. The R axis can then rotate the carrier 4 vertically, adjusting its posture in all directions. Through the coordinated operation of these four axes, the four-axis adjustment component 5 can quickly and accurately adjust the sample 7 to the optimal detection position corresponding to the X-ray tube assembly and the flat panel assembly 3, without manual intervention or replacement of the carrier 4. This significantly improves detection efficiency and automation, effectively ensuring the continuity and smoothness of the detection process.

[0036] The existing testing platform's cell carrier 4 is only equipped with an R-axis and only supports in-situ rotation. When the carrier 4 is offset or the positioning structure has errors, it cannot automatically complete axis calibration with the CT equipment, and can only rely on replacing the carrier 4 or manual adjustment. This method is cumbersome, consumes a lot of time and manpower, seriously reduces testing efficiency, and disrupts the continuity and smoothness of the testing work.

[0037] In comparison, the desktop CT detection device proposed in this application represents a technological breakthrough. A four-axis adjustment assembly 5, comprising X, Y, Z, and R axes, is installed inside the detection chamber 11 and is detachably connected to the carrier 4. When the carrier 4 experiences positional shift or positioning error, the X, Y, and Z axes, driven by a precision motor 515 and a transmission mechanism, precisely adjust the three-dimensional spatial position of the carrier 4. The R axis drives the carrier 4 to rotate vertically, adjusting its posture in all directions. This eliminates the need for time-consuming and labor-intensive carrier 4 replacements or manual adjustments, allowing for rapid and precise adjustment of the sample 7 to the optimal detection position corresponding to the X-ray tube assembly and the flat panel assembly 3. This significantly improves detection efficiency and automation, effectively ensuring a smooth and continuous detection process.

[0038] In this embodiment, the top of the carrier 4 is provided with a placement slot, which is used to place the test sample 7; the test sample 7 may be a cylindrical cell, a stacked cell, or an irregular cell, etc.

[0039] In this embodiment, as shown in the appendix Figure 3 and attached Figure 4As shown, the four-axis adjustment assembly 5 includes a lifting assembly 51, a displacement platform 52, and a hollow rotating platform 53. The lifting assembly 51 is located inside the detection cavity 11 and is in a fixed state. The displacement platform 52 is located on the surface of the lifting assembly 51 and can be raised and lowered under the action of the lifting assembly 51. The hollow rotating platform 53 is located on the surface of the displacement platform 52, and the displacement platform 52 can drive the hollow rotating platform 53 to move laterally and longitudinally (the lateral direction is the line connecting the X-ray tube assembly 2 and the flat plate assembly 3, and the longitudinal direction is perpendicular to the line connecting the X-ray tube assembly 2 and the flat plate assembly 3). The carrier 4 is located on the surface of the hollow rotating platform 53 and can rotate on the surface of the hollow rotating platform 53.

[0040] The lifting assembly 51, as the core component responsible for vertical adjustment in the four-axis adjustment assembly 5, is securely installed inside the detection chamber 11. Its structure can be implemented using a lead screw drive mechanism and a servo motor 515. The displacement platform 52, mounted on the lifting assembly 51, is a key structure for realizing the horizontal (X-axis and Y-axis) adjustment of the carrier 4, and can utilize existing technology. It can consist of two sets of mutually perpendicular linear guides and slider mechanisms, a high-precision ball screw, and an independent servo motor 515. The linear guides are linear rolling guides, with internal balls rolling between the guides and sliders, resulting in minimal friction and enabling fast and smooth linear motion. The hollow rotary platform 53, located on the surface of the displacement platform 52, is the core component for realizing the vertical rotation (R-axis) of the carrier 4. Its unique hollow design provides space for cables, pipes, etc., inside the detection device to pass through, and can utilize existing technology.

[0041] During testing, the sample 7 can be placed on the carrier 4 first. Then, by opening the X-ray tube assembly 2 and the flat panel assembly 3 and observing the imaging position on the flat panel assembly 3, the lifting assembly 51 and the displacement platform 52 can be activated to adjust the position of the sample 7 so that it corresponds to the X-ray tube assembly 2 and the flat panel assembly 3. Then, the hollow rotating platform 53 can be activated to perform all-round testing on the sample 7. At the same time, during the testing process, the lifting assembly 51 can also be activated in conjunction with the hollow rotating platform 53 to perform spiral testing on the sample 7 to improve the testing effect.

[0042] The four-axis adjustment assembly 5, through the coordinated design of the lifting assembly 51, the displacement platform 52, and the hollow rotary platform 53, constructs a complete X, Y, Z, and R axis adjustment system. Specifically, the lifting assembly 51, combining a high-precision ball screw drive mechanism with a servo motor 515, achieves vertical lifting adjustment in the Z-axis direction, ensuring precise alignment of the carrier 4 with the detection equipment in the height direction. The displacement platform 52, using two sets of vertical linear guides, sliders, and ball screws, is driven by an independent servo motor 515 to complete horizontal displacement adjustment in the X and Y axes, solving the problem of horizontal offset of the carrier 4. The hollow rotary platform 53, employing a harmonic reducer combined with a stepper motor 515, achieves vertical rotation adjustment in the R-axis, while its hollow design prevents cable entanglement.

[0043] This component, through a multi-axis linkage precision transmission structure, replaces the limitation of the traditional carrier 4's single R-axis. It can automatically complete three-dimensional spatial position calibration and attitude adjustment without manual intervention, accurately aligning the test sample 7 to the detection axis of the X-ray tube assembly 2 and the flat panel assembly 3. This effectively solves the cumbersome problem of manual adjustment or replacement of the carrier 4 in the prior art, significantly improving detection efficiency and automation, and ensuring the continuity and reliability of the detection process.

[0044] When inspecting longer or larger samples, the four-axis adjustment assembly 5 plays a crucial role through the coordinated operation of each axis. The lifting assembly 51, through a high-precision lead screw transmission mechanism and a high-performance servo motor 515, precisely adjusts the vertical position of the carrier 4 according to the sample height, ensuring the entire sample is within the effective detection range of the X-ray tube assembly and the flat panel assembly 3. The displacement platform 52, utilizing two sets of mutually perpendicular linear guides, sliders, and high-precision ball screws, driven by the servo motor 515, allows the carrier 4 to move significantly in the X and Y axes, meeting the requirement for precise alignment of different parts of large samples with the inspection equipment. The hollow rotation platform 53, using a harmonic reducer and a stepper motor 515, drives the carrier 4 to rotate at multiple angles, enabling comprehensive, multi-view scanning inspection of large samples. The coordinated operation of each axis allows for the complete acquisition of inspection data from all parts of large samples, thus solving the problem of traditional inspection devices being unable to perform comprehensive and accurate inspection of longer or larger samples, significantly expanding the applicability of desktop CT inspection devices.

[0045] In this embodiment, as shown in the appendix Figure 4As shown, the lifting assembly includes a fixed plate 511, a slide rod 512, a mounting plate 513, and a first lead screw 514; the fixed plate 511 is provided inside the detection cavity 11, and the fixed plate 511 is set on the inner bottom wall of the detection cavity 11, and a threaded hole is provided in the middle of the fixed plate 511; the slide rod 512 is slidably mounted on the fixed plate 511, and a part of the slide rod 512 is located inside the detection cavity 11 and connected to the moving platform, and the other part is located outside the detection cavity 11, that is, outside the housing 1; the mounting plate 513 is provided with On the end of the slide bar 512 away from the displacement platform 52 and located outside the detection cavity 11, a motor 515 is mounted on the mounting plate 513. The motor 515 is arranged vertically and a first pulley is mounted on the output shaft of the motor 515. A first lead screw 514 is rotatably mounted on the mounting plate 513. One end of the first lead screw 514 is threaded into a threaded hole and located inside the detection cavity 11, while the other end is located at the bottom of the mounting plate 513. A second pulley is mounted at the bottom of the first lead screw 514, and the second pulley is connected to the first pulley by a synchronous belt.

[0046] Specifically, there are four slide rods 512, located at the four corners of the fixed plate 511. The slide rods 512 slide with the fixed plate 511 through sliding bearings. By starting the motor 515, the motor 515 can drive the first lead screw 514 to rotate through the synchronous belt. The first lead screw 514 is threaded with the threaded hole and, under the action of the slide rods 512, drives the mounting plate 513 and the displacement platform 52 to slide up or down relative to the fixed plate 511, so as to realize the lifting and lowering of the carrier 4.

[0047] In this embodiment, as shown in the appendix Figure 5 As shown, the X-ray tube assembly 2 includes an X-ray tube emitter 21, a first fixed shell 22, a first sliding plate 23, and a first adjustment assembly 24. The X-ray tube emitter 21 is located inside the detection chamber 11, and the first fixed shell 22 is disposed on the outside of the X-ray tube emitter 21 and covers the X-ray tube emitter 21 for protection. The first sliding plate 23 is slidably disposed on the inner bottom wall of the detection chamber 11, and the first fixed threaded hole 225 is located on the surface of the first sliding plate 23. The first adjustment assembly 24 is disposed at the bottom of the first sliding plate 23, and the first adjustment assembly 24 is used to drive the first sliding plate 23 to move closer to or away from the four-axis adjustment assembly 5.

[0048] The X-ray tube emitter 21, as the core component of the X-ray tube assembly 2, is located inside the detection chamber 11. Its main function is to generate X-rays to irradiate the sample 7 placed on the carrier 4. The first fixing shell 22 is located outside the X-ray tube emitter 21 and has a fully enclosed structure to facilitate the installation and fixation of the X-ray tube emitter 21. The first sliding plate 23 provides a guiding sliding function and can drive the X-ray tube emitter 21 to move. The first adjustment component 24 can be a lead screw module or a cylinder, etc., which can drive the first sliding plate 23 to slide and adjust the distance between the X-ray tube emitter 21 and the sample 7 to facilitate imaging.

[0049] Through the structural design of the X-ray tube assembly 2 described above, the X-ray tube transmitter 21 can be effectively protected and its stable operation can be ensured. At the same time, the distance between the X-ray tube transmitter 21 and the carrier 4 can be flexibly adjusted according to the actual needs of the sample 7 being tested, thereby improving the adaptability and detection accuracy of the desktop CT detection device to different samples. Compared with the X-ray tube assembly 2 in the prior art that is fixedly installed and has an adjustable distance, it has stronger practicality and technical advantages.

[0050] Further details are attached. Figure 6 As shown, the first fixed shell 22 includes a first plate 221 disposed on the first sliding plate 23, second plates 222 disposed on both sides of the first plate 221, and a third plate 223 disposed between the two second plates 222. The third plate 223 is disposed on the surface of the first plate 221 and is located on the side of the first plate 221 away from the four-axis adjustment assembly 5. A first waist-shaped countersunk hole 224 is provided at the position where the two second plates 222 overlap with the third plate 223. A fixing threaded hole 225 is provided on the side wall of the third plate 223 at the position corresponding to the first waist-shaped countersunk hole 224. A bolt is provided in the first waist-shaped countersunk hole 224 and the bolt is threadedly engaged with the fixing threaded hole 225 to fix the third plate 223 to the two second plates 222. The X-ray tube emitter 21 is mounted on the third plate 223.

[0051] The bottom of the first plate 221 is provided with an adjustment threaded hole, and a first manual bolt is engaged with the threaded part of the adjustment threaded hole. The head end of the first manual bolt faces downward, and the threaded part of the first manual bolt engages with the adjustment threaded hole and protrudes from the surface of the first plate 221. By turning the first manual bolt, the gap between the third plate 223 and the first plate 221 can be adjusted, thereby adjusting the height of the X-ray tube emitter 21. This improves the convenience and efficiency of installation and debugging. It can also accurately adjust the position and height of the X-ray tube emitter 21 according to the size and thickness of the sample 7 of different specifications, ensuring that the X-rays irradiate the sample at the best angle and avoiding blind spots in the detection.

[0052] In this embodiment, the first adjustment component 24 includes a first drive motor 515, a second lead screw, and a first slider; a first groove plate is provided inside the detection cavity 11, the first drive motor 515 is disposed on one side of the first groove plate and located inside the detection cavity 11; one end of the second lead screw is connected to the output shaft of the first drive motor 515, and the other end is rotatably disposed on the inner wall of the detection cavity 11 and located inside the first groove plate; the first slider is slidably disposed in a groove on the surface of the first groove plate, the first slider is threadedly engaged with the second lead screw, and the first slider is connected to the first sliding plate 23.

[0053] By starting the first drive motor 515, the second lead screw can be driven to rotate. Under the action of the thread, the second lead screw can drive the first slider to slide back and forth along the groove, which in turn can drive the first sliding plate 23 to move back and forth, adjusting the distance between the X-ray tube emitter 21 and the four-axis adjustment assembly 5.

[0054] In this embodiment, the first adjustment component 24 may also be a lead screw module, a cylinder, or a hydraulic cylinder, etc.

[0055] In this embodiment, as shown in the appendix Figure 7 Appendix Figure 8 Appendix Figure 9 and attached Figure 10 As shown, the flat plate assembly 3 includes a second sliding plate 31, an inclined plate 32, a first adjusting plate 33, a lifting adjusting bolt 34, a flat plate mounting plate 51335, a rotation adjusting bolt 37, an inclined adjusting bolt 38, and a second adjusting assembly 39. The second sliding plate 31 is slidably disposed inside the detection cavity 11. The second sliding plate 31 includes a fourth plate and support plates located on both sides of the fourth plate. The inclined plate 32 is located between the two support plates and is rotatably disposed on the support plates via rotating shafts. A damper (the damper is prior art) is disposed inside the rotating shafts. The first adjusting plate 33 is vertically slidably disposed on the side of the inclined plate 32 near the four-axis adjusting assembly 5. A lifting adjusting bolt 34 is rotatably disposed on the top of the inclined plate 32, one end of which is connected to the first adjusting bolt 39. The first adjusting plate 33 is threaded and can be raised and lowered by rotating the lifting adjusting bolt 34. The flat plate mounting plate 51335 is rotatably mounted on the first adjusting plate 33, and a flat plate detector 36 is provided on the side of the flat plate mounting plate 51335 near the four-axis adjusting assembly 5. The tilting plate 32 is provided with a rotating adjusting bolt 37, which can be used to adjust the angle of the flat plate mounting plate 51335 to facilitate its correspondence with the X-ray tube emitter 21. The second sliding plate 31 is also provided with a tilt adjusting bolt 38, which can be used to adjust the tilt angle of the tilting plate 32. The second adjusting assembly 39 is located inside the detection cavity 11 and is used to drive the second sliding plate 31 to move closer to or away from the four-axis adjusting assembly 5.

[0056] Further details are attached. Figure 8As shown, the top of the inclined plate 32 is set between two support plates via a rotating shaft with a damper or by bolts. The bottom of the two support plates is provided with an arc-shaped countersink hole 311, and a bolt is installed in the arc-shaped countersink hole 311. The bolt is threaded with the inclined plate 32 to fix the inclined plate 32 to the support plate. When adjusting the angle of the inclined plate 32, the bolt in the arc-shaped countersink hole 311 can be loosened first, and then the tilt adjustment bolt 38 can be rotated and pressed against the inclined plate 32 to make the inclined plate 32 rotate. This allows the imaging effect of the test sample 7 to be adjusted. After adjustment, the inclined plate 32 can be fixed to the support plate by rotating the bolt in the arc-shaped countersink hole 311.

[0057] Furthermore, a guide groove is provided on the side of the inclined plate 32 near the first adjusting plate 33, and a guide block is provided on one side of the first adjusting plate 33. The guide block is slidably disposed in the guide groove. By adjusting the lifting bolt 34 in conjunction with the guide block and the guide groove, the height of the flat panel detector 36 can be adjusted to correspond with the X-ray tube emitter 21.

[0058] Further details are attached. Figure 8 and attached Figure 11 As shown, the first adjusting plate 33 has arc-shaped fixing holes 331 on both sides, and bolts are installed in the arc-shaped fixing holes 331. These bolts are connected to the flat plate mounting plate 51335. A rotating hole is provided in the middle of the first adjusting plate 33, and an adjusting rotating shaft 351 is provided in the middle of the flat plate mounting plate 51335. A damper is installed in the adjusting rotating shaft 351 (both the adjusting rotating shaft 351 and the damper are existing technologies). The adjusting rotating shaft 351 is rotatably installed in the rotating hole and fixed by the bolts in the arc-shaped fixing holes 331. A platform plate is provided on one side of the inclined plate 32. An adjusting threaded hole is provided on the platform plate. A rotating adjusting bolt 37 is engaged with the adjusting threaded hole, and one end of the rotating adjusting bolt 37 protrudes from the adjusting threaded hole and abuts against the top wall of the flat plate mounting plate 51335. By turning the rotating adjusting bolt 37, the flat plate mounting plate 51335 can be squeezed to rotate, thereby adjusting the angle between the flat plate mounting plate 51335 and the flat plate detector 36.

[0059] The flat panel assembly 3 achieves flexible and precise adjustment through the collaboration of multiple components. The second sliding plate 31 is equipped with an inclined plate 32, a first adjusting plate 33, and a flat panel mounting plate 51335. The inclined plate 32 is connected to the support plate via a rotating shaft (with damper) and an arc-shaped countersunk hole 311 for fine-tuning of the angle. It is driven to rotate by the inclined adjusting bolt 38 to adjust the imaging effect of the sample 7. The first adjusting plate 33 is vertically slidable by the lifting adjusting bolt 34 on the top of the inclined plate 32, the guide groove, and the guide block, and precisely adjusts the height of the flat panel detector 36. The flat panel mounting plate 51335 is rotatably connected to the first adjusting plate 33 via an adjusting rotating shaft 351 with damper and an arc-shaped fixing hole 331. The angle is adjusted by the pressure driven by the rotating adjusting bolt 37. In addition, the second adjusting assembly 39 drives the second sliding plate 31 to move as a whole. The cooperation of each adjusting structure enables the flat panel detector 36 to quickly and accurately correspond to the X-ray tube emitter 21, improving the detection imaging accuracy and adaptability.

[0060] In this embodiment, the second adjustment component 39 includes a second drive motor 515, a third lead screw, and a second slider; a second groove plate is provided inside the detection cavity 11, the second drive motor 515 is disposed on one side of the second groove plate and located inside the detection cavity 11; one end of the third lead screw is connected to the output shaft of the second drive motor 515, and the other end is rotatably disposed on the inner wall of the detection cavity 11 and located inside the second groove plate; the second slider is slidably disposed in a groove on the surface of the second groove plate, the second slider is threadedly engaged with the third lead screw, and the second slider is connected to the second sliding plate 31.

[0061] By starting the second drive motor 515, the third lead screw can be driven to rotate. Under the action of the thread, the third lead screw can drive the second slider to slide back and forth along the groove, which in turn can drive the second sliding plate 31 to move back and forth, adjusting the distance between the flat plate detector 36 and the four-axis adjustment assembly 5.

[0062] In this embodiment, the second adjustment component 39 may also be a lead screw module, a cylinder, or a hydraulic cylinder, etc.

[0063] In this embodiment, as shown in the appendix Figure 1 As shown, the desktop CT detection device also includes a U-shaped support frame 6, which is located at the bottom of the housing 1 and is used to support the housing 1. The U-shaped support frame 6 has a U-shaped groove inside, which is used to place electronic control components and the main unit, etc.

[0064] The mounting plate 513 and the motor 515 located outside the detection cavity 11 are both located in the U-shaped groove to provide a sealing function.

[0065] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the solutions disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.

Claims

1. A desktop CT scanner, characterized in that, include: The housing contains a detection chamber. An X-ray tube assembly is disposed within the detection cavity; A flat panel assembly is disposed within the detection cavity; The flat panel assembly is arranged opposite to the X-ray tube assembly; A carrier, located between the X-ray tube assembly and the flat panel assembly, is used to place the test sample; A four-axis adjustment assembly is disposed within the detection chamber; the four-axis adjustment assembly is detachably connected to the carrier and is used to adjust the position of the carrier so that the detection sample corresponds to the X-ray tube assembly and the flat panel assembly.

2. The desktop CT scanner according to claim 1, characterized in that, The four-axis adjustment assembly includes: A lifting assembly is disposed within the detection cavity; A displacement platform is disposed on the surface of the lifting assembly; the lifting assembly is used to drive the displacement platform to move up and down. A hollow rotating platform is disposed on the surface of the displacement platform; the displacement platform is used to drive the hollow rotating platform to move laterally and longitudinally, and the carrier is located on the surface of the hollow rotating platform.

3. The desktop CT scanner according to claim 2, characterized in that, The lifting assembly includes: A fixing plate is disposed inside the detection cavity; a threaded hole is provided in the middle of the fixing plate; A sliding rod is slidably mounted on the fixed plate; one end of the sliding rod is connected to the displacement platform. A mounting plate is disposed at the end of the slide bar away from the displacement platform and located outside the detection cavity; a motor is disposed on the mounting plate; The first lead screw is rotatably mounted on the mounting plate and connected to the motor; the first lead screw is threadedly engaged with the threaded hole.

4. The desktop CT scanner according to claim 1, characterized in that, The X-ray tube assembly includes: X-ray tube emitter; The first fixing shell is disposed on the outside of the X-ray tube emitter and wraps around the X-ray tube emitter; A first sliding plate is slidably disposed inside the detection cavity; a first fixed shell is located on the surface of the first sliding plate; The first adjustment component is located inside the detection cavity and is used to drive the first sliding plate closer to or further away from the four-axis adjustment component.

5. A desktop CT scanner according to claim 4, characterized in that, The first adjustment component includes: The first drive motor is disposed inside the detection cavity; The second lead screw has one end mounted on the output shaft of the first drive motor and the other end rotatably mounted on the inner wall of the detection cavity. The first slider is slidably disposed inside the detection cavity; the first slider is threadedly engaged with the second lead screw, and the top of the first slider is connected to the first sliding plate.

6. A desktop CT scanner according to claim 4, characterized in that, The first fixed shell includes: The first plate is disposed on the surface of the first sliding plate; Two second plates are respectively disposed on both sides of the first plate; each of the two second plates has a first waist-shaped countersink hole on the opposite side; The third plate is disposed on the first plate and located between the two second plates; the third plate is provided with fixing threaded holes on both sides near the two second plates, the fixing threaded holes are engaged with the first waist-shaped countersunk hole and connected by bolts; The first adjusting screw is threadedly disposed at the bottom of the first plate; one end of the first adjusting screw abuts against the bottom of the third plate.

7. A desktop CT scanner according to claim 1, characterized in that, The flat panel assembly includes: The second sliding plate is slidably disposed inside the detection cavity; An inclined plate is rotatably mounted on the second sliding plate; The first adjustment plate is slidably disposed on the side of the inclined plate near the four-axis adjustment assembly; A lifting adjustment bolt is rotatably mounted on the top of the inclined plate; the lifting adjustment bolt is threadedly engaged with the first adjustment plate; A flat mounting plate is rotatably mounted on the first adjusting plate; A flat panel detector is mounted on the flat panel mounting plate; A rotary adjusting bolt is rotatably mounted on the inclined plate; the rotary adjusting screw abuts against the flat plate mounting plate; An tilt adjustment bolt is rotatably mounted on the second sliding plate; one end of the tilt adjustment bolt abuts against the tilt plate. The second adjustment component is disposed inside the detection cavity and is used to drive the second sliding plate to move closer to or away from the four-axis adjustment component.

8. A desktop CT scanner according to claim 7, characterized in that, The second adjustment component includes: The second drive motor is located inside the detection cavity; The third lead screw has one end set on the output shaft of the second drive motor and the other end set on the inner wall of the detection cavity; The second slider is slidably disposed inside the detection cavity; the second slider is threadedly engaged with the third lead screw, and the top of the second slider is connected to the second sliding plate.

9. A desktop CT scanner according to claim 1, characterized in that, The top of the carrier is provided with a placement slot for placing test samples.

10. A desktop CT scanner according to claim 1, characterized in that, It also includes: A U-shaped support frame is provided at the bottom of the housing to support the housing; the interior of the U-shaped support frame is provided with a U-shaped groove for placing electronic control components.

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