Shape and position adjustment mechanism and related apparatus

Abstract

The application discloses a shape and position adjusting mechanism and related equipment. The shape and position adjusting mechanism comprises a positioning plate, a first surface and a second surface of the positioning plate are oppositely arranged, the second surface is used for carrying a to-be-scanned piece, an adjusting part is used for adjusting the shape and position of the positioning plate in six degrees of freedom, the adjusting part comprises a connecting rod, a first end of the connecting rod is connected with the positioning plate, a shape and position adjusting assembly, the shape and position adjusting assembly comprises a motor, a driving gear and a driven gear, the motor is connected with the driving gear, the driving gear is meshed with the driven gear, and a second end of the connecting rod is connected with the driven gear. The shape and position adjusting mechanism and the related equipment can adjust the shape and position of the positioning plate in six degrees of freedom through the adjusting part, can ensure that the to-be-scanned piece can be accurately positioned in the scanning process, and thus the scanning accuracy and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the technical field of scanning equipment adjustment, and more particularly to a shape and position adjustment mechanism and related equipment. Background Technology

[0002] Computed tomography (CT) technology, as an important tool in modern medical imaging diagnosis, is widely used in the diagnosis of human tissues, organs, and diseases. With the advancement of technology, CT technology has not only been widely applied in the medical field but has also gradually expanded into areas such as 3D printing quality inspection and CT examination of objects. In these applications, the positioning of the object to be scanned is crucial to ensuring the clarity and accuracy of CT scan images.

[0003] Traditional CT scanners typically mount the CT machine vertically to the ground, with the object being scanned sliding horizontally into the scanning chamber that runs from front to back. While this method is effective in most cases, it falls short in certain applications where the object needs to be suspended and fixed beneath a support. The object's own weight poses a significant risk of misalignment, slippage, or falling, which not only affects the accuracy of the scan results but may also damage the equipment.

[0004] To address these issues, several methods have emerged in the prior art that attempt to improve scanning techniques. For example, complex robotic arms or sliding rail mechanisms are used to feed the object to be scanned into the scanning cavity of the CT scanner. However, these methods often suffer from drawbacks such as complex structures, low motion accuracy, and large space requirements, making them unsuitable for high-precision scanning and installation in confined spaces.

[0005] Another method is to use a vertical CT scanner, where the CT machine is installed horizontally and the scanning cavity runs vertically through the machine. The object to be scanned is raised from the bottom to the top and enters the scanning cavity for scanning. While this method solves the problem of objects slipping or falling to some extent, existing vertical CT scanners often lack flexible position adjustment mechanisms, making it impossible to make precise adjustments to the object to be scanned in multiple degrees of freedom, thus affecting the clarity and accuracy of the scan results.

[0006] Therefore, it is necessary to propose a shape and position adjustment mechanism and related equipment. Summary of the Invention

[0007] The purpose of this invention is to provide a shape and position adjustment mechanism and related equipment, which can adjust the shape and position of the positioning plate in six degrees of freedom through the adjustment part, so as to ensure that the workpiece to be scanned can be accurately positioned during the scanning process, thereby improving the accuracy and efficiency of scanning.

[0008] The objective of this invention is achieved through the following technical solution:

[0009] On one hand, the present invention provides a form and position adjustment mechanism, comprising:

[0010] A positioning plate, the positioning plate including a first surface and a second surface disposed opposite to each other, the second surface being used to support the object to be scanned;

[0011] An adjustment unit, which adjusts the shape and position of the positioning plate in six degrees of freedom, includes:

[0012] A connecting rod, the first end of which is connected to the positioning plate;

[0013] A form and position adjustment assembly, comprising: a motor, a drive gear, and a driven gear, wherein the motor drives and connects to the drive gear, the drive gear meshes with the driven gear, and the driven gear is connected to the second end of the connecting rod.

[0014] The beneficial effects of the above solution are: the present invention uses a positioning plate to support the object to be scanned, and adjusts the shape and position of the positioning plate in six degrees of freedom through the adjustment part, which can ensure that the object to be scanned can be accurately positioned during the scanning process, thereby improving the accuracy and efficiency of scanning.

[0015] Furthermore, the side of the connecting rod includes a first side and a third side arranged opposite to each other, and a second side and a fourth side arranged opposite to each other, wherein the first side and the second side are perpendicular to each other.

[0016] The form and position adjustment component includes:

[0017] A first adjustment component, the first adjustment component being connected to the first side or the third side; and / or,

[0018] A second adjustment component, the second adjustment component being connected to the second side or the fourth side; and / or,

[0019] A third adjustment component, the third adjustment component being connected to the first side or the third side; and / or,

[0020] A fourth adjustment component, which is connected to the second side or the fourth side.

[0021] The beneficial effects of the above solution are: by setting different adjustment components on the side of the connecting rod, the present invention can achieve precise adjustment of the positioning plate in different directions, improve the flexibility and accuracy of adjustment, and enable the part to be scanned to be precisely positioned in complex three-dimensional space.

[0022] Furthermore, the adjustment unit also includes:

[0023] A first frame and a second frame are arranged opposite to each other. Each first frame and the second frame include a first side and a third side, as well as a second side and a fourth side, which are arranged opposite to each other. The first side and the second side are perpendicular to each other. The second side of each first frame and the second frame are rotatably connected to the second side of the connecting rod. And / or, the fourth side of each first frame and the second frame are rotatably connected to the fourth side of the connecting rod.

[0024] A fixing frame, which is rotatably connected to a first side of the first frame and / or a third side of the first frame.

[0025] The beneficial effects of the above solution are: the fixing frame, the first frame and the second frame of the present invention not only enable the connecting rod to rotate and connect in multiple directions, but also enhance the stability of the mechanism.

[0026] Furthermore, the positioning plate includes:

[0027] The first side and the third side are set opposite to each other, with the first side rotatably connected to the first side of the second frame; and / or, the third side rotatably connected to the third side of the second frame.

[0028] The beneficial effects of the above solution are: by rotating the first and third sides of the positioning plate to the first and third sides of the second frame respectively, the present invention can realize the adjustment of the positioning plate in more directions, further improving the flexibility and accuracy of the adjustment.

[0029] Furthermore, the first adjustment assembly includes a first motor, a first fan blade, a first driven gear, and a first driving gear. The first motor is mounted on the fixed frame. The first fan blade is connected to a first side or a third side of the first frame. The first driven gear is disposed on the arc of the first fan blade. The first driving gear is disposed at the output end of the first motor, and the first driving gear meshes with the first driven gear; and / or,

[0030] The second adjustment assembly includes a second motor, a second fan blade, a second driven gear, and a second driving gear. The second motor is mounted on the connecting rod. The second fan blade is connected to the second side or the fourth side of the first frame. The second driven gear is disposed on the arc of the second fan blade. The second driving gear is disposed at the output end of the second motor, and the second driving gear meshes with the second driven gear; and / or,

[0031] The third adjustment component includes a third motor, a third fan blade, a third driven gear, and a third driving gear. The third motor is mounted on the positioning plate. The third fan blade is connected to the first side or the third side of the second frame. The third driven gear is disposed on the arc of the third fan blade. The third driving gear is disposed at the output end of the third motor, and the third driving gear meshes with the third driven gear; and / or,

[0032] The fourth adjustment component includes a fourth motor, a fourth fan blade, a fourth driven gear, and a fourth driving gear. The fourth motor is mounted on the connecting rod. The fourth fan blade is connected to the second side of the second frame or the fourth side of the second frame. The fourth driven gear is disposed on the arc of the fourth fan blade. The fourth driving gear is disposed at the output end of the fourth motor. The fourth driving gear meshes with the fourth driven gear.

[0033] The beneficial effects of the above solution are: the various adjustment components of the present invention achieve precise adjustment through the meshing of motors, fan blades, and gears, making the adjustment process more stable and accurate. Furthermore, the combined use of different adjustment components allows for comprehensive adjustment of the positioning plate in different directions.

[0034] Furthermore, the aforementioned form and position adjustment mechanism also includes:

[0035] A lifting unit, which drives the positioning plate to reciprocate along the Z-axis;

[0036] Furthermore, the adjustment unit also includes a rotating component, which drives the positioning plate to rotate clockwise or counterclockwise around the Z-axis in the XOY plane.

[0037] The beneficial effects of the above solution are: the lifting part of the present invention allows the positioning plate to move back and forth along the Z-axis, thereby realizing the adjustment of the workpiece to be scanned in the height direction. The rotating component allows the positioning plate to rotate clockwise or counterclockwise around the Z-axis in the XOY plane, further improving the flexibility and accuracy of the adjustment.

[0038] Furthermore, the lifting unit includes:

[0039] A lifting actuator, wherein the cylinder head of the lifting actuator is connected to the translation part to drive the positioning plate to reciprocate along the Z-axis;

[0040] The lifting frame includes: a first support plate and a second support plate arranged opposite to each other, and a plurality of telescopic rods; the first support plate is connected to the cylinder body of the lifting actuator, and the second support plate is connected to the cylinder head of the lifting actuator; the first end of each telescopic rod is connected to the first support plate, and the second end of each telescopic rod is connected to the second support plate;

[0041] The rotating component includes:

[0042] A slewing bearing, which is connected to the lifting unit;

[0043] The worm gear is coupled to the slewing bearing;

[0044] A hydraulic motor drives the worm gear to rotate the slewing bearing.

[0045] The beneficial effects of the above solution are: the lifting part of the present invention realizes the stable movement of the positioning plate in the Z-axis direction through the combination of the lifting actuator and the lifting frame; the rotating component realizes the smooth rotation of the positioning plate through the combination of the slewing bearing, the worm gear and the hydraulic motor, making the adjustment process more reliable and stable.

[0046] Furthermore, the initial position of the positioning plate is such that the first surface is parallel to the XOY plane.

[0047] The beneficial effect of the above solution is that the initial position design of the positioning plate of the present invention makes its first surface parallel to the XOY plane, which enables vertical scanning.

[0048] In a second aspect, the present invention provides a scanning device, comprising:

[0049] The aforementioned form and position adjustment mechanism;

[0050] A CT scanning unit, wherein the scanning area of ​​the CT scanning unit corresponds to the external position of the object to be scanned carried by the positioning adjustment mechanism;

[0051] A lifting assembly, the first end of which is connected to a mounting platform, and the second end of which is connected to the CT scanning unit.

[0052] The beneficial effects of the above solution are: the scanning device of the present invention, combined with the aforementioned shape and position adjustment mechanism, can achieve precise adjustment and positioning of the object to be scanned. Simultaneously, the cooperation between the CT scanning unit and the shape and position adjustment mechanism makes the scanning process more efficient and accurate. Furthermore, by setting up a lifting assembly, the CT scanning unit can scan at different heights, further improving the flexibility and accuracy of the scanning.

[0053] Thirdly, the present invention provides a medical device, comprising:

[0054] The aforementioned scanning device;

[0055] A control system that controls the positioning adjustment mechanism and the lifting assembly.

[0056] The beneficial effects of the above solution are: the medical device of the present invention combines the aforementioned scanning device and control system, enabling comprehensive control and management of the scanning process. Through precise control of the system, the stability and accuracy of the scanning process can be ensured, thereby improving the overall performance and reliability of the medical device.

[0057] Compared with the prior art, the beneficial effects of the present invention include at least the following:

[0058] The adjustment unit of this invention, through the meshing of the driving and driven gears driven by a motor, can adjust the shape and position of the positioning plate in six degrees of freedom (i.e., three translational degrees of freedom and three rotational degrees of freedom), ensuring that the workpiece to be scanned can be accurately positioned in three-dimensional space, meeting the needs of high-precision scanning or inspection. Furthermore, using a motor as the power source offers higher stability and accuracy compared to manual adjustment or hydraulic / pneumatic drives. The motor can achieve precise position control through a closed-loop control system, thereby ensuring the accuracy and repeatability of the adjustment process. Attached Figure Description

[0059] Figure 1 This is a schematic diagram of a shape and position adjustment mechanism according to an embodiment of the present invention.

[0060] Figure 2 This is another structural schematic diagram of the form and position adjustment mechanism according to an embodiment of the present invention.

[0061] Figure 3 This is a schematic diagram of a connecting rod according to an embodiment of the present invention.

[0062] Figure 4 This is a schematic diagram of the structure of the adjustment part according to an embodiment of the present invention.

[0063] Figure 5 This is a schematic diagram of the scanning device according to an embodiment of the present invention.

[0064] Figure 6 This is another structural schematic diagram of the scanning device according to an embodiment of the present invention.

[0065] In the diagram: 1. Positioning plate; 11. First side; 12. Second side; 13. Third side; 14. Fourth side; 3. Adjustment part; 30. Shape and position adjustment assembly; 31. First adjustment assembly; 311. First motor; 312. First fan blade; 313. First driven gear; 314. First driving gear; 32. Second adjustment assembly; 322. Second fan blade; 323. Second driven gear; 324. Second driving gear; 33. Third adjustment assembly; 331. Third motor; 332. Third fan blade; 333. Third driven gear; 334. Third driving gear; 34. Fourth adjustment assembly; 342. Fourth fan blade; 343. Fourth driven gear; 35. First frame; 351. First side of the first frame; 352. First frame 353. The second side of the first frame; 354. The fourth side of the first frame; 36. The second frame; 361. The first side of the second frame; 362. The second side of the second frame; 363. The third side of the second frame; 364. The fourth side of the second frame; 37. The fixed frame; 38. The rotating assembly; 381. The slewing bearing; 382. The hydraulic motor; 39. The connecting rod; 391. The first side; 392. The second side; 393. The third side; 394. The fourth side; 4. The lifting part; 41. The lifting actuator; 42. The lifting frame; 421. The first support plate; 422. The second support plate; 423. The telescopic rod; 100. The form and position adjustment mechanism; 600. The CT scanning part; 700. The lifting assembly. Detailed Implementation

[0066] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided to make the invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0067] The terms used to express position and direction in this invention are illustrated with reference to the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this invention.

[0068] To achieve precise adjustment of the six degrees of freedom of the object to be scanned, this invention aims to improve the clarity and accuracy of CT scans while reducing the risk of misalignment during shape and position changes. This invention provides a shape and position adjustment mechanism 100 and related equipment.

[0069] The position adjustment mechanism 100 of the present invention includes a positioning plate 1 and an adjustment part 3. The positioning plate 1 is configured to correspond to and extend into the CT scanning part 600 of the CT scanning device. Furthermore, in order to increase the range of longitudinal adjustment, the position adjustment mechanism 100 of the present invention may also include a lifting part 4.

[0070] The positioning plate 1 of the present invention includes a first surface and a second surface arranged opposite to each other. Specifically, the initial position of the positioning plate 1 is that the first surface is parallel to the XOY plane, and the second surface is used to support the object to be scanned. In application, a fixing member (not shown) can be provided on the second surface of the positioning plate 1 according to the actual situation. The fixing member is made of transparent plastic material and is compatible with the operating mechanism of the CT scanning device, and will not generate interference factors such as static electricity or friction during the scanning process.

[0071] Further reference Figure 2 The positioning plate 1 of the present invention includes a first side 11 and a third side 13 arranged opposite to each other. Specifically, the first side 11, the second side 12, the third side 13, and the fourth side 14 are connected end to end in sequence. In application, in the initial state, the extension direction of the first side 11 is the X-axis direction, and the positioning plate 1 is parallel to the XOY plane.

[0072] The adjustment part 3 of the present invention adjusts the shape and position of the positioning plate 1 in six degrees of freedom.

[0073] refer to Figure 1 The adjustment part 3 of the present invention includes a connecting rod 39 and a shape and position adjustment assembly 30. Further, the adjustment part 3 of the present invention also includes a fixing frame 37 and a first frame 35 and a second frame 36 disposed opposite to each other. Further, the adjustment part 3 of the present invention also includes a rotating assembly 38. Specifically, the fixing frame 37 is connected to the first frame 35, the first frame 35 is connected to the connecting rod 39, the connecting rod 39 is connected to the shape and position adjustment assembly 30, the shape and position adjustment assembly 30 is connected to the second frame 36, and the second frame 36 is connected to the positioning plate 1. Preferably, the fixing frame 37 is hinged to the first frame 35, the first frame 35 is hinged to the connecting rod 39, the connecting rod 39 is hinged to the shape and position adjustment assembly 30, the shape and position adjustment assembly 30 is hinged to the second frame 36, and the second frame 36 is hinged to the positioning plate 1.

[0074] The first end of the connecting rod 39 of the present invention is connected to the positioning plate 1. Further, refer to... Figure 3 The connecting rod 39 has two sides, a first side 391 and a third side 393, and a second side 392 and a fourth side 394, which are arranged opposite to each other. Specifically, the first side 391, the second side 392, the third side 393, and the fourth side 394 are connected end to end in sequence, and the first side 391 and the second side 392 are perpendicular to each other, and the third side 393 and the fourth side 394 are perpendicular to each other.

[0075] refer to Figure 3 The first frame 35 and the second frame 36 of the present invention each include a first side and a third side, and a second side and a fourth side, which are arranged opposite to each other. The first side, second side, third side, and fourth side are connected end-to-end in sequence, and the first side and the second side are perpendicular to each other. Specifically, the first side 351 and / or the third side 353 of the first frame are rotatably connected to the fixing frame 37; the second sides of both the first frame 35 and the second frame 36 are rotatably connected to the second side 392 of the connecting rod 39; the fourth sides of both the first frame 35 and the second frame 36 are rotatably connected to the fourth side 394 of the connecting rod 39; the first side 361 of the second frame is rotatably connected to the first side 11; and the third side 363 of the second frame is rotatably connected to the third side 13.

[0076] To provide sufficient torque during the adjustment of the shape and position of a large workpiece to be scanned, the shape and position adjustment assembly 30 of this invention includes a motor, a driving gear, and a driven gear. Specifically, the motor drives the driving gear, which meshes with the driven gear. The driven gear is connected to the second end of the connecting rod 39. In application, the number of teeth on the driving gear is less than the number of teeth on the driven gear. In practical application, the motor is started, the driving gear at the motor output rotates, and drives the driven gear to rotate, thereby adjusting the shape and position of the connecting rod 39.

[0077] refer to Figure 2 To achieve precise adjustment of the positioning plate 1 in different directions, the shape and position adjustment assembly 30 of the present invention includes: a first adjustment assembly 31, a second adjustment assembly 32, a third adjustment assembly 33, and a fourth adjustment assembly 34. Specifically, the first adjustment assembly 31 is connected to the first side 391 or the third side 393; the second adjustment assembly 32 is connected to the second side 392 or the fourth side 394; the third adjustment assembly 33 is connected to the first side 391 or the third side 393; and the fourth adjustment assembly 34 is connected to the second side 392 or the fourth side 394. Preferably, the first adjustment assembly 31 is connected to the first side 391, the second adjustment assembly 32 is connected to the second side 392, the third adjustment assembly 33 is connected to the first side 391, and the fourth adjustment assembly 34 is connected to the fourth side 394.

[0078] refer to Figure 3The first adjustment component 31 of the present invention includes a first motor 311, a first fan blade 312, a first driven gear 313, and a first driving gear 314. Specifically, the first motor 311 is mounted on a fixed frame 37, the first fan blade 312 is connected to a first side 351 or a third side 353 of the first frame, the first driven gear 313 is disposed on the arc of the first fan blade 312, and the first driving gear 314 is disposed at the output end of the first motor 311, meshing with the first driven gear 313. Preferably, the first fan blade 312 is connected to the first side 351 of the first frame. In application, the first motor 311 can rotate clockwise or counterclockwise. Start the first motor 311, which causes the first driving gear 314 to drive the first driven gear 313 to rotate, thereby driving the first fan blade 312, the first frame 35 and the second frame 36, the connecting rod 39 and the positioning plate 1 to move back and forth along the arc of the first fan blade 312, thereby adjusting the shape and position of the positioning plate 1. At this time, the relative distance (or average distance) between the positioning plate 1 and the XOY plane changes.

[0079] refer to Figure 3 The second adjustment component 32 of the present invention includes a second motor, a second fan blade 322, a second driven gear 323, and a second driving gear 324. Specifically, the second motor is mounted on the connecting rod 39, the second fan blade 322 is connected to the second side 352 or the fourth side 354 of the first frame, the second driven gear 323 is disposed on the arc of the second fan blade 322, and the second driving gear 324 is disposed at the output end of the second motor, meshing with the second driven gear 323. Preferably, the second fan blade 322 is connected to the second side 352 of the first frame. In application, the second motor can rotate clockwise or counterclockwise. Starting the second motor causes the second driving gear 324 to rotate around the second driven gear 323, thereby driving the connecting rod 39, the second frame 36, and the positioning plate 1 to reciprocate along the arc of the second fan blade 322, achieving positional adjustment of the positioning plate 1. At this time, the relative distance (or average distance) between the positioning plate 1 and the XOY plane changes.

[0080] refer to Figure 3The third adjustment component 33 of the present invention includes a third motor 331, a third fan blade 332, a third driven gear 333, and a third driving gear 334. Specifically, the third motor 331 is mounted on the positioning plate 1, the third fan blade 332 is connected to the first side 361 or the third side 363 of the second frame, the third driven gear 333 is disposed on the arc of the third fan blade 332, and the third driving gear 334 is disposed at the output end of the third motor 331, meshing with the third driven gear 333. Preferably, the third fan blade 332 is connected to the first side 361 of the second frame. In application, the third motor 331 can rotate clockwise or counterclockwise. Starting the third motor 331 causes the third driving gear 334 to rotate around the third driven gear 333, thereby driving the positioning plate 1 to reciprocate along the arc of the third fan blade 332, achieving positional adjustment of the positioning plate 1. At this time, the relative distance (or average distance) between the positioning plate 1 and the XOY plane remains unchanged.

[0081] refer to Figure 3 The fourth adjustment component 34 of the present invention includes a fourth motor, a fourth fan blade 342, a fourth driven gear 343, and a fourth driving gear. Specifically, the fourth motor is mounted on the connecting rod 39, the fourth fan blade 342 is connected to the second side 362 or the fourth side 364 of the second frame, the fourth driven gear 343 is disposed on the arc of the fourth fan blade 342, and the fourth driving gear is disposed at the output end of the fourth motor, meshing with the fourth driven gear 343. Preferably, the fourth fan blade 342 is connected to the fourth side 364 of the second frame. In application, the fourth motor can rotate clockwise or counterclockwise. Starting the fourth motor causes the fourth driving gear to drive the fourth driven gear 343 to rotate, thereby causing the second frame 36 and the positioning plate 1 to reciprocate along the arc of the fourth fan blade 342, achieving positional adjustment of the positioning plate 1. At this time, the relative distance (or average distance) between the positioning plate 1 and the XOY plane remains unchanged.

[0082] In some preferred embodiments, in the initial state, the connecting rod 39 is perpendicular to the XOY plane, and the driving gear abuts against the middle of the driven gear.

[0083] The rotating component 38 of the present invention drives the positioning plate 1 to rotate clockwise or counterclockwise around the Z-axis in the XOY plane.

[0084] refer to Figure 1To improve the accuracy and stability of rotation, the rotating assembly 38 of the present invention includes: a slewing bearing 381, a worm gear (not shown), and a hydraulic motor 382. Furthermore, to ensure the smoothness and reliability of the rotation process, the rotating assembly 38 of the present invention may also include: a motor adjusting block (not shown). Specifically, the hydraulic motor 382 drives the worm gear, the worm gear is coupled to the slewing bearing 381, and the slewing bearing 381 is connected to the lifting part 4. In application, the hydraulic motor 382 can rotate clockwise or counterclockwise. The hydraulic motor 382 drives the motor adjusting block, which is connected to the worm gear, causing the worm gear to rotate uniformly clockwise or counterclockwise in the ZOY plane. The worm gear drives the slewing bearing 381 to rotate clockwise or counterclockwise in the XOY plane, so that the positioning plate 1 rotates clockwise or counterclockwise around the Z-axis in the XOY plane.

[0085] The lifting part 4 of the present invention drives the positioning plate 1 to reciprocate along the Z-axis.

[0086] refer to Figure 1 To enable the positioning plate 1 to reciprocate along the Z-axis, the lifting part 4 of the present invention includes a lifting actuator 41. Furthermore, to improve the stability of the lifting part 4, the lifting part 4 of the present invention may also include a lifting frame 42. Specifically, the cylinder head of the lifting actuator 41 is connected to the bracket of the rotating assembly 38 to drive the positioning plate 1 to reciprocate along the Z-axis. In application, the cylinder head of the lifting actuator 41 is connected to one end of the lifting frame 42, and the cylinder body of the lifting actuator 41 is connected to the other end of the lifting frame 42. Preferably, the lifting actuator 41 is a lifting electric cylinder or a lifting hydraulic cylinder.

[0087] refer to Figure 1 The lifting frame 42 includes multiple telescopic rods 423 and a first support plate 421 and a second support plate 422 disposed opposite to each other. Specifically, the first support plate 421 is connected to the cylinder of the lifting actuator 41, the second support plate 422 is connected to the cylinder head of the lifting actuator 41, and the first end of each telescopic rod 423 is connected to the first support plate 421, and the second end of each telescopic rod 423 is connected to the second support plate 422. In application, the first support plate 421 is mounted on the bracket of the rotating assembly 38. In practical application, the cylinder head of the lifting actuator 41 is connected to the first support plate 421, and the cylinder of the lifting actuator 41 is connected to the second support plate 422.

[0088] In some preferred embodiments, each telescopic rod 423 includes a first rod (not shown) and a second rod (not shown). The first end of the first rod is connected to a first support plate 421, and the second end of the first rod is telescopically inserted into the first end of the second rod. The second end of the second rod is connected to a second support plate 422. Furthermore, to prevent the first rod from slipping off the second rod, each telescopic rod 423 of the present invention includes a snap-fit ​​structure (not shown). For example, the snap-fit ​​structure includes a first ring with a groove and a second ring with a protrusion matching the groove (specifically, the first ring is disposed on the second end of the first rod, and the second ring is disposed on the first end of the second rod). In application, when the cylinder head of the lifting actuator 41 extends outward, and the groove of the first ring engages with the protrusion of the second ring, due to the limiting effect of the snap-fit ​​structure, even if the cylinder head of the lifting actuator 41 continues to be pushed outward, the cylinder head of the lifting actuator 41 will not continue to extend outward, and the positioning plate 1 will not continue to move along the extension direction of the lifting actuator 41. When the cylinder head of the actuator 41 retracts, after the first rod is fully inserted into the second rod, due to the restraining effect of the first support plate 421 and the second rod, even if the cylinder head of the lifting actuator 41 continues to be pulled back, the cylinder head of the lifting actuator 41 will not continue to retract inward, and the positioning plate 1 will not continue to move along the Z-axis direction of the lifting actuator 41. In practical applications, in order to make full use of the lifting actuator 41, the length of the first rod is greater than half of the range of the lifting actuator 41, and in the initial state, the extension length of the cylinder rod (or piston rod) of the lifting actuator 41 is half of the range of the lifting actuator 41.

[0089] In addition, refer to Figure 5 and Figure 6 The scanning device of the present invention is a CT scanning device, comprising: the aforementioned position adjustment mechanism 100, CT scanning unit 600, and lifting assembly 700. Specifically, the first end of the lifting assembly 700 is connected to the mounting platform, and the second end of the lifting assembly 700 is connected to the CT scanning unit 600. The scanning area, i.e., the scanning cavity, of the CT scanning unit 600 corresponds to the external position of the object to be scanned carried by the position adjustment mechanism 100, thereby enabling the object to be scanned to enter the scanning area and allowing different parts to be scanned to be scanned. The scanning cavity is arranged through the Z-axis direction, i.e., the height direction. In application, during the scanning process, the CT scanning unit 600 is fitted around the periphery of the position adjustment mechanism 100. Furthermore, after the position adjustment mechanism 100 adjusts the position of the object to be scanned or the positioning plate 1 from six degrees of freedom, the position of the CT scanning unit 600 can also be adjusted in the Z-axis direction using the lifting assembly 700, which facilitates faster and more accurate alignment with the object to be scanned, such as the patient's part to be scanned, to achieve more accurate and efficient scanning and improve medical outcomes. In practical applications, in order to save installation space, improve safety, and enhance the visual appeal of the facility, the present invention mounts the CT scanning unit 600 horizontally and raises it from the bottom to perform scanning during use.

[0090] In some preferred embodiments, the lifting assembly 700 of the present invention includes multiple lifting modules (not shown). Preferably, the lifting assembly 700 of the present invention includes two lifting modules, which are symmetrically arranged.

[0091] Each lifting module includes at least one telescopic actuator (not shown). Further, each lifting module includes a fixed plate (not shown) and an extension plate (not shown). Specifically, the cylinder body of the telescopic actuator is connected to the fixed plate, the cylinder head of the telescopic actuator is connected to the extension plate, and the extension plate is connected to the CT scanning unit 600. In application, the telescopic actuator is activated, driving the extension plate and the CT scanning unit 600 to reciprocate along the Z-axis. In practical applications, initially, the extended length of the cylinder rod (or piston rod) of the telescopic actuator is half the range of the telescopic actuator. Preferably, the telescopic actuator is a telescopic electric cylinder or a telescopic hydraulic cylinder.

[0092] Furthermore, the medical device of the present invention includes a scanning device (not shown) and a control system (not shown). Specifically, the control system controls the positioning adjustment mechanism 100 and the lifting assembly 700. The medical device may be a medical imaging device, such as a CT imaging device, and the scanning device may include a CT scanning unit, which includes an X-ray tube.

[0093] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the invention without departing from the principles and spirit of the invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A form and position adjustment mechanism, characterized in that, include: Positioning plate (1), the positioning plate (1) includes a first surface and a second surface disposed opposite to each other, the second surface being used to support the object to be scanned; Adjustment unit (3), which adjusts the shape and position of positioning plate (1) in six degrees of freedom, the adjustment unit (3) includes: A connecting rod (39), the first end of which is connected to the positioning plate (1); The form and position adjustment assembly (30) includes a motor, a drive gear and a driven gear. The motor drives and connects to the drive gear. The drive gear meshes with the driven gear. The driven gear is connected to the second end of the connecting rod (39).

2. The form and position adjustment mechanism according to claim 1, characterized in that, The side of the connecting rod (39) includes a first side (391) and a third side (393) arranged opposite to each other, and a second side (392) and a fourth side (394) arranged opposite to each other, wherein the first side (391) and the second side (392) are perpendicular to each other; The form and position adjustment component (30) includes: A first adjustment component (31) is connected to either the first side (391) or the third side (393); and / or, A second adjustment component (32) is connected to the second side (392) or the fourth side (394); and / or, A third adjustment component (33) is connected to either the first side (391) or the third side (393); and / or, A fourth adjustment component (34) is connected to the second side (392) or the fourth side (394).

3. The form and position adjustment mechanism according to claim 2, characterized in that, The adjustment unit (3) further includes: The first frame (35) and the second frame (36) are arranged opposite to each other. The first frame (35) and the second frame (36) each include a first side and a third side arranged opposite to each other, and a second side and a fourth side arranged opposite to each other. The first side and the second side are perpendicular to each other. The second side of the first frame (35) and the second frame (36) are rotatably connected to the second side (392) of the connecting rod (39); and / or, the fourth side of the first frame (35) and the second frame (36) are rotatably connected to the fourth side (394) of the connecting rod (39). A fixing frame (37) is rotatably connected to a first side (351) of the first frame and / or a third side (353) of the first frame.

4. The form and position adjustment mechanism according to claim 3, characterized in that, The positioning plate (1) includes: The first side (11) and the third side (13) are respectively set, and the first side (11) is rotatably connected to the first side (361) of the second frame; and / or the third side (13) is rotatably connected to the third side (363) of the second frame.

5. The form and position adjustment mechanism according to claim 3, characterized in that, The first adjustment assembly (31) includes a first motor (311), a first fan blade (312), a first driven gear (313), and a first driving gear (314). The first motor (311) is mounted on the fixed frame (37). The first fan blade (312) is connected to a first side (351) or a third side (353) of the first frame. The first driven gear (313) is disposed on the arc of the first fan blade (312). The first driving gear (314) is disposed at the output end of the first motor (311). The first driving gear (314) meshes with the first driven gear (313); and / or, The second adjustment assembly (32) includes a second motor, a second fan blade (322), a second driven gear (323), and a second driving gear (324). The second motor is mounted on the connecting rod (39). The second fan blade (322) is connected to the second side (352) or the fourth side (354) of the first frame. The second driven gear (323) is disposed on the arc of the second fan blade (322). The second driving gear (324) is disposed at the output end of the second motor, and the second driving gear (324) meshes with the second driven gear (323); and / or, The third adjustment component (33) includes a third motor (331), a third fan blade (332), a third driven gear (333), and a third driving gear (334). The third motor (331) is mounted on the positioning plate (1). The third fan blade (332) is connected to the first side (361) or the third side (363) of the second frame. The third driven gear (333) is disposed on the arc of the third fan blade (332). The third driving gear (334) is disposed at the output end of the third motor (331). The third driving gear (334) meshes with the third driven gear (333); and / or, The fourth adjustment component (34) includes a fourth motor, a fourth fan blade (342), a fourth driven gear (343), and a fourth driving gear. The fourth motor is mounted on the connecting rod (39). The fourth fan blade (342) is connected to the second side (362) of the second frame or the fourth side (364) of the second frame. The fourth driven gear (343) is disposed on the arc of the fourth fan blade (342). The fourth driving gear is disposed at the output end of the fourth motor. The fourth driving gear meshes with the fourth driven gear (343).

6. The form and position adjustment mechanism according to claim 1, characterized in that, The aforementioned form and position adjustment mechanism further includes: Lifting unit (4), which drives the positioning plate (1) to reciprocate along the Z-axis; and / or, The adjustment part (3) further includes a rotating component (38), which drives the positioning plate (1) to rotate clockwise or counterclockwise around the Z-axis in the XOY plane.

7. The form and position adjustment mechanism according to claim 6, characterized in that, The lifting unit (4) includes: The lifting actuator (41) has a cylinder head that is connected to the rotating part to drive the upper part of the positioning plate (1) to move up and down along the Z-axis. A lifting frame (42) includes: a first support plate (421) and a second support plate (422) disposed opposite to each other, and a plurality of telescopic rods (423); the first support plate (421) is connected to the cylinder of the lifting actuator (41), and the second support plate (422) is connected to the cylinder head of the lifting actuator (41); the first end of each telescopic rod (423) is connected to the first support plate (421), and the second end of the telescopic rod (423) is connected to the second support plate (422); The rotating assembly (38) includes: A slewing bearing (381) is connected to the lifting part (4); A worm gear coupled to the slewing bearing (381); A hydraulic motor (382) drives the worm gear to rotate the slewing bearing (381).

8. The form and position adjustment mechanism according to claim 1, characterized in that, The initial position of the positioning plate (1) is that the first surface is parallel to the XOY plane.

9. A scanning device, characterized in that, include: The form and position adjustment mechanism (100) according to any one of claims 1-8; A CT scanning unit (600) whose scanning area corresponds to the external position of the object to be scanned carried by the positioning adjustment mechanism (100); A lifting assembly (700) is provided, with its first end connected to a mounting platform and its second end connected to the CT scanning unit (600).

10. A medical device, characterized in that, include: The scanning device according to claim 9; A control system that controls the positioning adjustment mechanism (100) and the lifting assembly (700).

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