Scanning imaging device

Abstract

The present application discloses a scanning imaging device, which belongs to the field of scanning imaging technology. The disclosed scanning imaging device includes a transmitting component and a receiving component, which are arranged at intervals. The transmitting component includes a radiation source and a first rotating drive mechanism, the output shaft of the first rotating drive mechanism is connected to the radiation source, and the first rotating drive mechanism drives the radiation source to rotate; the receiving component includes a detector and a second rotating drive mechanism, the output shaft of the second rotating drive mechanism is connected to the detector, and the second rotating drive mechanism drives the detector to rotate. A measured area for placing a measured object is provided between the transmitting component and the receiving component, and the radiation source, the measured object, and the detector are located on the same straight line, so that the radiation emitted by the radiation source passes through the measured object and is received by the detector. In this way, the motion trajectory of the radiation source and the detector is circular, the control requirements for the drive mechanism are reduced, and the radiation source, the measured object, and the detector are ensured to be located on the same straight line, thereby improving the imaging effect.

Description

Technical Field

[0001] The present application belongs to the field of scanning imaging technology, and specifically relates to a scanning imaging device. Background Art

[0002] Industrial CT (Computed Tomography, Computed Tomography ) refers to the ability to clearly, accurately, and intuitively display the internal structure, composition, material, and defects of an object under test in the form of a two-dimensional tomographic image or a three-dimensional stereoscopic image, without damaging the object. Specifically, radiation from a radiation source illuminates the object under test and is projected onto a detector, which then captures an image of the object.

[0003] In related technologies, the ray source and detector use an interpolated circular motion method to translate within a motion plane, thereby capturing images of the object being measured. Specifically, both the ray source and the detector rely on two lead screw assemblies to drive the movement, one of which drives the ray source or detector in a first direction, and the other drives the ray source or detector in a second direction, the first direction and the second direction being perpendicular to each other. Therefore, the position of the ray source or detector within the motion plane is adjusted by the two lead screw assemblies so that the motion trajectory of the ray source or detector approaches a circular trajectory, and ultimately the detector acquires images of the object being measured at different detection angles. During this process, the ray source, the object being measured, and the detector are always located on the same straight line to ensure that the rays from the ray source can be projected onto the detector.

[0004] Due to the requirements for the running trajectories of the ray source and detector, the control requirements for each screw assembly are high; moreover, the running trajectories of the ray source and detector are not regular circles, so the ray source, the object to be measured and the detector are not exactly located on the same straight line, resulting in poor imaging effect. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a scanning imaging device that can at least solve the problems in the related art of the scanning imaging device having high control requirements for the drive mechanism and poor imaging effect.

[0006] An embodiment of the present application provides a scanning imaging device, including a transmitting component and a receiving component, wherein:

[0007] The transmitting assembly and the receiving assembly are spaced apart. The transmitting assembly includes a radiation source and a first rotation drive mechanism. The output shaft of the first rotation drive mechanism is connected to the radiation source. The first rotation drive mechanism drives the radiation source to rotate.

[0008] The receiving assembly includes a detector and a second rotation drive mechanism, wherein the output shaft of the second rotation drive mechanism is connected to the detector, and the second rotation drive mechanism drives the detector to rotate.

[0009] A measured area for placing the measured object is provided between the transmitting component and the receiving component, and the ray source, the measured object and the detector are located on the same straight line so that the ray emitted by the ray source passes through the measured object and is received by the detector.

[0010] In an embodiment of the present application, under the driving action of the first rotation drive mechanism and the second rotation drive mechanism, the motion trajectories of the ray source and the detector are circular, and there is no need to continuously control the first rotation drive mechanism and the second rotation drive mechanism to ensure the motion trajectories of the ray source and the detector, thereby reducing the control requirements for the drive mechanism; moreover, since the motion trajectories of the ray source and the detector are regular circles, during the rotation process of the ray source and the detector, it can be ensured that the ray source, the object to be measured and the detector are accurately located on the same straight line, thereby ensuring effective imaging and improving the imaging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a front view of the scanning imaging device disclosed in an embodiment of the present application;

[0012] Figure 2 is a schematic diagram of a ray source, a detector, and an object under test during the imaging process disclosed in an embodiment of the present application;

[0013] Figure 3 It is a structural diagram of the transmitting assembly disclosed in the embodiment of the present application;

[0014] Figure 4 is an exploded view of the launch assembly disclosed in the embodiment of the present application;

[0015] Figure 5 It is a structural diagram of the receiving component disclosed in the embodiment of this application.

[0016] Description of reference numerals:

[0017] 100-emitting assembly, 110-ray source, 120-first rotary drive mechanism, 130-mounting member, 131-first flat plate, a-first mounting surface, 132-wedge plate, 133-second flat plate, b-second mounting surface, 140-first support plate, 150-first linear drive mechanism,

[0018] 200-receiving component, 210-detector, 220-second rotary drive mechanism, 230-second support plate, 240-second linear drive mechanism,

[0019] 300-test object,

[0020] 410-rotation drive source, 420-screw, 430-threaded sleeve, 440-connector, 450-screw support block, 460-bearing, 470-drive source mounting block, 480-coupling,

[0021] 500-Limit sensor,

[0022] 600-first guide mechanism, 610-first guide rail, 620-first slider,

[0023] 700-second guide mechanism, 710-second guide rail, 720-second slider,

[0024] 810-rotation drive part, 811-rotation output part, 820-adapter ring, 830-opening,

[0025] A-Axis of rotation. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0027] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0028] The scanning imaging device provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0029] Please refer to Figure 1-Figure 5 The scanning imaging device disclosed in the embodiment of the present application includes a transmitting component 100 and a receiving component 200. The transmitting component 100 and the receiving component 200 are spaced apart, and a test area for placing a test object 300 is provided between the transmitting component 100 and the receiving component 200. That is, the test object 300 is located between the transmitting component 100 and the receiving component 200.

[0030] The emitting assembly 100 includes a radiation source 110 and a first rotary drive mechanism 120. The radiation source 110 emits radiation toward the receiving assembly 200, and the output shaft of the first rotary drive mechanism 120 is connected to the radiation source 110, so that the first rotary drive mechanism 120 drives the radiation source 110 to rotate. This refers to the rotation of the entire radiation source 110 about a first rotation axis, not the self-rotation of the radiation source 110. Alternatively, the first rotary drive mechanism 120 may be an electric motor or a rotary motor.

[0031] The receiving assembly 200 includes a detector 210 and a second rotary drive mechanism 220. The radiation receiving position of the detector 210 faces the transmitting assembly 100, and the output shaft of the second rotary drive mechanism 220 is connected to the detector 210, so that the second rotary drive mechanism 220 drives the detector 210 to rotate. This also refers to the rotation of the entire detector 210 about the second rotation axis, rather than the self-rotation of the detector 210. Optionally, the second rotary drive mechanism 220 can be an electric motor or a rotary motor.

[0032] When the object under test 300 is placed in the test area, the radiation source 110, the object under test 300, and the detector 210 are located in a straight line, so that the radiation emitted by the radiation source 110 passes through the object under test 300 and is received by the detector 210, and the detector 210 can capture images of the object under test 300. The object under test 300 may be a circuit board. Optionally, during the rotation of the radiation source 110, the detector 210 rotates with the radiation source 110. The rotation speed of the first rotation drive mechanism 120 and the rotation speed of the second rotation drive mechanism 220 can be adjusted as needed to keep the radiation source 110, the object under test 300, and the detector 210 always in a straight line, thereby enabling the detector 210 to consistently capture various images of the circumference of the object under test 300.

[0033] In the embodiment of the present application, under the driving action of the first rotation drive mechanism 120 and the second rotation drive mechanism 220, the movement trajectories of the ray source 110 and the detector 210 are circular, and there is no need to continuously control the first rotation drive mechanism 120 and the second rotation drive mechanism 220 to ensure the movement trajectories of the ray source 110 and the detector 210, thereby reducing the control requirements of the drive mechanism; moreover, since the movement trajectories of the ray source 110 and the detector 210 are regular circles, during the rotation process of the ray source 110 and the detector 210, it can be ensured that the ray source 110, the object to be measured 300 and the detector 210 are accurately located on the same straight line, thereby ensuring effective imaging and improving the imaging effect. Moreover, after the position of the ray source 110 is determined, when the ray source 110 rotates, the portion of the ray source 110 closest to the first rotation axis does not change, so that among the rays emitted by the ray source 110, the rays closest to the first rotation axis are always the same portion of rays. In other words, among the rays emitted by the ray source 110, the rays on the inner side of the central ray always remain on the inner side of the central ray, and the rays on the outer side of the central ray always remain on the outer side of the central ray. Therefore, on the same circumference around the first rotation axis, the uniformity of the rays remains basically unchanged, avoiding imaging differences.

[0034] In an optional embodiment, the first rotation axis and the second rotation axis can be different axes. In this way, during the rotation of the radiation source 110 and the detector 210, the rotation speed of the first rotation drive mechanism 120 and the rotation speed of the second rotation drive mechanism 220 can be adjusted to ensure that the radiation source 110, the object under test 300, and the detector 210 are always located in the same straight line.

[0035] In another optional embodiment, the rotation axis of the radiation source 110 and the rotation axis of the detector 210 are coaxial, that is, the first rotation axis and the second rotation axis mentioned above are coaxial, the rotation plane of the radiation source 110 is parallel to the rotation plane of the detector 210, the object 300 in the measured area passes through the rotation axis, and the rotational angular velocity of the radiation source 110 is the same as the rotational angular velocity of the detector 210. Specifically, the output shaft of the first rotation drive mechanism 120 is centered on the first rotation axis, and the output shaft of the second rotation drive mechanism 220 is centered on the second rotation axis, thereby achieving coaxial rotation of the radiation source 110 and the detector 210. In this way, it is sufficient to keep the ray source 110, the object to be measured 300 and the detector 210 in the same straight line at the initial position. During the rotation of the ray source 110 and the detector 210, there is no need to constantly adjust the rotation speed of the first rotation drive mechanism 120 and the rotation speed of the second rotation drive mechanism 220. It is still possible to ensure that the ray source 110, the object to be measured 300 and the detector 210 are always in the same straight line, so that the detector 210 can continuously collect images of the object to be measured 300 at different detection angles, thereby reducing the control requirements for the first rotation drive mechanism 120 and the second rotation drive mechanism 220.

[0036] In the related art, the ray source 110 and the detector 210 use an interpolated circular motion method to translate within the motion plane, thereby capturing an image of the object 300 under test. However, the center of the motion trajectory of the ray source 110 and the center of the motion trajectory of the detector 210 are dynamic virtual positions and are difficult to detect effectively. Therefore, it is difficult to ensure that the projections of the center of the motion trajectory of the ray source 110 and the center of the motion trajectory of the detector 210 within the motion plane coincide with each other, resulting in poor imaging effects. However, with the solution of the present application, the center of the motion trajectory of the ray source 110 and the detector 210 are not dynamic virtual positions. The positions of the first rotary drive mechanism 120 and the second rotary drive mechanism 220 can be set as needed to determine the rotation axis A of the ray source 110 and the detector 210, ensuring that the ray source 110 and the detector 210 remain coaxial during motion, thereby ensuring that the ray source 110, the object 300 under test, and the detector 210 are always located in the same straight line, ensuring effective imaging and improving imaging effects.

[0037] In an optional embodiment, the transmitting assembly 100 includes a mounting member 130, which has a first mounting surface a and a second mounting surface b disposed opposite to each other, the first mounting surface a being parallel to the second mounting surface b, the output shaft of the first rotary drive mechanism 120 being connected to the first mounting surface a, the first mounting surface a being perpendicular to the rotation axis A of the radiation source 110, and the radiation source 110 being disposed on the second mounting surface b. In this case, the radiation emission direction of the radiation source 110 can be parallel to the rotation axis A. In this case, if the distance between the radiation source 110 and the detector 210 is large, in order to ensure that the radiation emitted by the radiation source 110 reaches the object under test 300 and the detector 210 and achieve complete imaging of the object under test 300, the radiation source 110 needs to be able to support a larger radiation emission angle (a larger emission angle is required to ensure that the radiation covers the object under test 300). In other words, the parameter requirements for the radiation source 110 are high, and it is not suitable for compatibility with radiation sources 110 with smaller radiation emission angles.

[0038] Therefore, in another embodiment, preferably, the angle between the first mounting surface a and the second mounting surface b is an acute angle. In this case, Figure 1-Figure 3 As shown, the central ray emission direction of the ray source 110 intersects the rotation axis A. In this way, the ray source 110 can be tilted toward the object under test 300. Compared with the case where the ray emission direction of the ray source 110 is parallel to the rotation axis A, the angular requirement for the ray emission angle of the ray source 110 is relatively low to achieve complete imaging of the object under test 300. Even ray sources with smaller ray emission angles are applicable to this solution. Furthermore, by adjusting the positions of the ray source 110 and the detector 210 on planes parallel to the first mounting surface a, and adjusting the distance between the ray source 110 and the detector 210, the angular requirement for the ray emission angle of the ray source 110 can be further reduced. For example, as the distance between the ray source 110 and the detector 210 decreases, the required ray emission angle of the ray source 110 can be correspondingly smaller, thereby increasing the range of ray source 110 types to choose from.

[0039] In an optional embodiment, if Figure 4As shown, the mounting member 130 includes a first plate 131, a wedge-shaped plate 132, and a second plate 133. The first plate 131 and the second plate 133 are detachably connected to opposite sides of the wedge-shaped plate 132. The first plate 131 and the second plate 133 are in contact with the wedge-shaped plate 132. The surface of the first plate 131 facing away from the wedge-shaped plate 132 serves as a first mounting surface a, and the surface of the second plate 133 facing away from the wedge-shaped plate 132 serves as a second mounting surface b. Optionally, the first plate 131 and the wedge-shaped plate 132, and the second plate 133 and the wedge-shaped plate 132, can be detachably connected by bolts or other means. In actual use, the second plate 133 can be first connected to the wedge-shaped plate 132, and the radiation source 110 can be mounted on the second plate 133 to achieve the connection between the radiation source 110 and the wedge-shaped plate 132. The first plate 131 can then be connected to the first rotation drive mechanism 120, and finally the wedge-shaped plate 132 can be connected to the first plate 131. In this way, by setting the wedge plate 132 and installing each component in sequence, the ray source 110 can be tilted so that the ray emission direction intersects with the rotation axis A. The installation is convenient and there is no need to create a complex installation environment for the ray source 110. In addition, the wedge plate 132 has a large surface area and can provide greater support force compared to a frame-type structure.

[0040] In the solution of the present application, the transmitting assembly 100 also includes a first support plate 140 and a first linear drive mechanism 150. The output shaft of the first rotary drive mechanism 120 is connected to the first support plate 140. The radiation source 110 and the first linear drive mechanism 150 are both disposed on the first support plate 140, and the first linear drive mechanism 150 is connected to the radiation source 110. The first linear drive mechanism 150 drives the radiation source 110 to move along a first direction. The first direction is parallel to the rotation plane of the radiation source 110, and the first direction may be perpendicular to the rotation axis A. The first linear drive mechanism 150 may be a linear drive module, a cylinder, or other component capable of generating linear displacement. Optionally, the first support plate 140 has a first surface and a second surface opposite to each other, the radiation source 110 and the first linear drive mechanism 150 are both disposed on the first surface of the first support plate 140, and the first rotary drive mechanism 120 is disposed on the second surface of the first support plate 140.

[0041] In this embodiment, by changing the position of the radiation source 110 in the first direction, the position of the radiation emitted changes, and the position of the radiation relative to the object 300 also changes. Therefore, the angle of the beam irradiating the same position of the object 300 is different before and after the movement of the radiation source 110. In other words, by irradiating the same position of the object 300 with radiation at different angles, a more comprehensive image of the object 300 is obtained. For example, before the radiation source 110 is moved, position A on the object 300 cannot be illuminated by the radiation, and the detector 210 cannot capture an image of position A. After the radiation source 110 is moved, position A can be illuminated by the radiation, and the detector 210 can capture an image of position A. Therefore, by moving the position of the radiation source 110 in the first direction, the detector 210 can capture images of the object 300 under the radiation at different angles, which facilitates the acquisition of a complete image of the object 300.

[0042] In an optional embodiment, the receiving assembly 200 further includes a second support plate 230 and a second linear drive mechanism 240, the output shaft of the second rotary drive mechanism 220 is connected to the second support plate 230, the detector 210 and the second linear drive mechanism 240 are both disposed on the second support plate 230, and the second linear drive mechanism 240 is connected to the detector 210, the second linear drive mechanism 240 drives the detector 210 to move along a second direction, the second direction is parallel to the rotation plane of the detector 210, and the second direction may be perpendicular to the rotation axis A. The second linear drive mechanism 240 may be a linear drive module, a cylinder, or other component capable of generating linear displacement. Optionally, the second support plate 230 has a third surface and a fourth surface facing each other, the detector 210 and the first linear drive mechanism 150 are both disposed on the third surface of the second support plate 230, and the second rotary drive mechanism 220 is disposed on the fourth surface of the second support plate 230.

[0043] Specifically, when the radiation source 110 moves in the first direction to approach the rotation axis A, the detector 210 moves in the second direction to approach the rotation axis A; when the radiation source 110 moves in the first direction to move away from the rotation axis A, the detector 210 moves in the second direction to move away from the rotation axis A. Furthermore, when the radiation source 110, the object under test 300, and the detector 210 are located in the same straight line, the movement distance of the radiation source 110 is proportional to the movement distance of the detector 210, ensuring that the line connecting the center of the radiation source 110 and the center of the detector 210 always passes through the object under test 300. In this embodiment, before the first rotation drive mechanism 120 and the second rotation drive mechanism 220 operate, the first linear drive mechanism 150 and the second linear drive mechanism 240 respectively drive the ray source 110 and the detector 210 to move to appropriate positions so that the ray source 110, the object to be measured 300 and the detector 210 are located in the same straight line. After the position of the ray source 110 in the first direction and the position of the detector 210 in the second direction are determined, the first rotation drive mechanism 120 and the second rotation drive mechanism 220 are controlled to operate.

[0044] By adopting this embodiment, the position of the detector 210 in the second direction can be adjusted according to the moving position of the ray source 110 in the first direction, ensuring that the ray source 110, the object to be measured 300 and the detector 210 are always accurately located on the same straight line, thereby improving the imaging effect of the detector 210 at various detection angles.

[0045] In an optional embodiment, at least one of the first linear drive mechanism 150 and the second linear drive mechanism 240 includes a rotary drive source 410, a screw rod 420 and a threaded sleeve 430. The output shaft of the rotary drive source 410 is connected to the screw rod 420. The extension direction of the screw rod 420 is the first direction or the second direction. The rotary drive source 410 drives the screw rod 420 to rotate. The screw rod 420 is threadedly engaged with the threaded sleeve 430. The threaded sleeve 430 is connected to the detector 210 or the radiation source 110. During the scanning imaging process, the screw rod 420 is first driven to rotate by the rotary drive source 410, and the threaded sleeve 430 moves along the extension direction of the screw rod 420. The threaded sleeve 430 drives the detector 210 or the radiation source 110 to move, thereby adjusting the moving position of the radiation source 110 or the detector 210. Optionally, the rotary drive source 410 can be a motor or a pneumatic motor, etc., and the threaded sleeve 430 can be a nut; Figure 4As shown, a screw support block 450 is provided on the first support plate 140 or the second support plate 230, and the screw support block 450 is provided with a through hole for the screw 420 to pass through, and the screw 420 and the screw support block 450 are rotatably connected through a bearing 460; the rotational drive source 410 is installed on the first support plate 140 or the second support plate 230 through the drive source mounting block 470, and the output shaft of the rotational drive source 410 is connected to the screw 420 through a coupling 480.

[0046] In this embodiment, the screw 420 and the threaded sleeve 430 are used to convert the rotational power of the rotation drive source 410 into linear motion power, with high transmission efficiency, ensuring that the radiation source 110 moves stably in the first direction, or ensuring that the detector 210 moves stably in the second direction.

[0047] In an optional embodiment, at least one of the transmitting assembly 100 and the receiving assembly 200 further includes a limit sensor 500, which is mounted on the first support plate 140 or the second support plate 230. The limit sensor 500 is in communication with the rotation drive source 410. When the limit sensor 500 detects that the detector 210 or the radiation source 110 has reached an extreme position, the rotation drive source 410 stops operating. Optionally, the limit sensor 500 can be a photoelectric sensor or a limit switch. The limit sensor 500 can be directly in communication with the rotation drive source 410. Alternatively, the scanning imaging device further includes a controller, and the limit sensor 500 and the rotation drive source 410 are each in communication with the controller. The limit sensor 500 transmits information indicating that the detector 210 or the radiation source 110 has reached an extreme position to the controller, which then controls the rotation drive source 410 to stop operating based on this information. In this embodiment, at least two limit sensors 500 are spaced apart along the extension direction of the lead screw 420.

[0048] The limit sensor 500 is used to limit the movement range of the ray source 110 or the detector 210 in the extension direction of the screw rod 420 to prevent the ray source 110 or the detector 210 from moving too far.

[0049] In an optional embodiment, at least one of the transmitting component 100 and the receiving component 200 further includes a mounting member 130, which is connected to the threaded sleeve 430. The mounting member 130 is provided with a baffle (not shown in the figure). When the baffle is relative to the limit sensor 500 (that is, when the baffle is in this position, it can trigger the limit sensor 500 to detect whether the detector 210 or the ray source 110 has moved to the extreme position), indicating that the detector 210 or the ray source 110 has moved to the extreme position. At this time, the rotation drive source 410 stops working and the detector 210 or the ray source 110 stops moving. Optionally, the limit sensor 500 may be a photoelectric sensor. When the baffle is offset from the photoelectric sensor (e.g., the baffle is not within the groove of the photoelectric sensor for emitting a light beam), the baffle does not block the light beam of the photoelectric sensor. When the baffle is positioned opposite the photoelectric sensor (e.g., the baffle is within the groove of the photoelectric sensor for emitting a light beam), the baffle blocks the light beam of the photoelectric sensor, thereby changing the output signal of the photoelectric sensor. The rotation drive source 410 is then controlled to stop operating based on the changed signal. This embodiment utilizes the baffle and the limit sensor to accurately detect whether the radiation source 110 or the detector 210 has reached its limit position, thereby providing position limit protection for the radiation source 110 or the detector 210.

[0050] In an optional embodiment, at least one of the transmitting component 100 and the receiving component 200 further includes a mounting member 130, and the mounting member 130 is provided with a first mounting surface a and a second mounting surface b in back to back, the first mounting surface a faces the threaded sleeve 430, and the radiation source 110 or the detector 210 is connected to the second mounting surface b, and the radiation source 110 or the detector 210 can be directly mounted on the second mounting surface b; at least one of the first linear drive mechanism 150 and the second linear drive mechanism 240 further includes a connecting member 440, and the connecting member 440 and the threaded sleeve 430 are arranged in sequence in the extension direction of the screw rod 420, and the connecting member 440 is respectively connected to the end of the threaded sleeve 430 and the end of the mounting member 130, that is, the threaded sleeve 430 is indirectly connected to the mounting member 130 through the connecting member 440, and the connecting member 440 is provided with an opening for the screw rod 420 to pass through, so as to prevent the connecting member 440 from hindering the rotation of the screw rod 420. Optionally, flanges are provided at the ends of the threaded sleeve 430 and the mounting member 130, and the connecting member 440 is provided with a mounting hole. Fasteners such as screws are passed through the mounting holes and tightened to the flanges, thereby realizing the connection between the threaded sleeve 430 and the connecting member 440 and the connection between the mounting member 130 and the connecting member 440.

[0051] In this way, the connecting piece 440 is used to connect the threaded sleeve 430 and the mounting piece 130 respectively, so that the mounting piece 130 and the threaded sleeve 430 are indirectly connected, solving the problem that the mounting piece 130 and the threaded sleeve 430 are inconvenient to be directly connected, so that the mounting piece 130 follows the threaded sleeve 430 to move along the extension direction of the screw rod 420, thereby driving the radiation source 110 or the detector 210 to move along the extension direction of the screw rod 420.

[0052] Optionally, the mounting member 130 of the transmitting assembly 100 can be the mounting member 130 mentioned above, that is, the mounting member 130 includes a first plate 131, a wedge plate 132 and a second plate 133, and the first plate 131 and the second plate 133 are respectively detachably connected to opposite sides of the wedge plate 132. The side of the first plate 131 facing away from the wedge plate 132 is a first mounting surface a, and the first mounting surface a faces the threaded sleeve 430. The side of the second plate 133 facing away from the wedge plate 132 is a second mounting surface b. The radiation source 110 is arranged on the second mounting surface b, and the end of the second plate 133 is connected to the connecting member 440. Furthermore, when a baffle is required to be provided on the mounting member 130, the baffle can be installed at the end of the first plate 131.

[0053] Optionally, the mounting member 130 of the receiving component 200 may include a first flat plate 131, the two opposite surfaces of the first flat plate 131 are respectively a first mounting surface a and a second mounting surface b, the threaded sleeve 430 faces the first mounting surface a, the detector 210 is arranged on the second mounting surface b, and the end of the first flat plate 131 is connected to the connecting member 440. Furthermore, when the mounting member 130 needs to be provided with a baffle, the baffle can be installed at the end of the first flat plate 131.

[0054] In an optional embodiment, the launch assembly 100 further includes a first guide mechanism 600, which includes a first guide rail 610 and a first slider 620. The first guide rail 610 is disposed on the first support plate 140, and the first slider 620 is connected to the first mounting surface a of the mounting member 130 in the launch assembly 100. The first guide rail 610 and the first slider 620 slide together in a first direction. The guide direction of the first guide rail 610 is the extension direction of the lead screw 420 in the first linear drive mechanism 150, i.e., the first direction mentioned above. In this way, the first guide mechanism 600 guides the movement direction of the radiation source 110, preventing the movement direction of the radiation source 110 from deviating.

[0055] Optionally, there are at least two first guide mechanisms 600, each of which is spaced apart. The two first guide mechanisms 600 are disposed on either side of the lead screw 420 of the first linear drive mechanism 150, that is, the two first guide mechanisms 600 are disposed on either side of the first linear drive mechanism 150. The first slider 620 of each first guide mechanism 600 is connected to the first mounting surface a of the first flat plate 131. In this manner, the at least two first guide mechanisms 600 accurately guide the radiation source 110. Furthermore, the mounting member 130 and the radiation source 110 can be supported from both sides of the first linear drive mechanism 150, ensuring the stability of the radiation source 110 during movement.

[0056] In another optional embodiment, the receiving assembly 200 further includes a second guide mechanism 700, which includes a second guide rail 710 and a second slider 720. The second guide rail 710 is disposed on the second support plate 230, and the second slider 720 is connected to the first mounting surface a of the mounting member 130 in the receiving assembly 200. The second guide rail 710 and the second slider 720 slide together in a second direction. The guide direction of the second guide rail 710 is the extension direction of the lead screw 420 in the second linear drive mechanism 240, i.e., the second direction mentioned above. In this way, the second guide mechanism 700 guides the movement direction of the detector 210 to prevent the movement direction of the detector 210 from deviating.

[0057] Optionally, there are at least two second guide mechanisms 700, each of which is spaced apart. The two second guide mechanisms 700 are respectively disposed on either side of the screw rod 420 of the second linear drive mechanism 240. That is, the two second guide mechanisms 700 are respectively disposed on either side of the second linear drive mechanism 240, and the second slider 720 of each second guide mechanism 700 is connected to the first mounting surface a of the first flat plate 131. In this manner, the detector 210 is accurately guided by at least two second guide mechanisms 700. Furthermore, the mounting member 130 and the detector 210 can be supported from both sides of the second linear drive mechanism 240, ensuring the stability of the detector 210 during movement.

[0058] In the solution of the present application, at least one of the first rotary drive mechanism 120 and the second rotary drive mechanism 220 includes a rotary drive member 810 and an adapter ring 820. The rotary drive member 810 includes a rotary output portion 811. The adapter ring 820 is sleeved on the outside of the rotary output portion 811, and the adapter ring 820 is connected to the first support plate 140 or the second support plate 230. When the rotary drive member 810 is working, the rotary output portion 811 rotates and drives the first support plate 140 or the second support plate 230 to rotate through the adapter ring 820. In addition, the ring wall of the adapter ring 820 is provided with an opening 830 for wiring. Figure 4As shown, the line can sequentially pass through the rotation output portion 811, the central area of ​​the adapter ring 820, and the opening 830 of the adapter ring 820, thereby leading the line to the outside as needed. Optionally, the rotation drive member 810 can be a rotation motor.

[0059] Through the matching structure of the rotation output part 811 and the adapter ring 820, the output shaft of the rotation drive member 810 can stably drive the first support plate 140 or the second support plate 230 to rotate; and, by setting the opening 830, the line can be led to the outside of the first rotation drive mechanism 120 or the second rotation drive mechanism 220 as needed.

[0060] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A scanning imaging device, characterized in that: It comprises a transmitting component (100) and a receiving component (200), wherein: The transmitting assembly (100) and the receiving assembly (200) are arranged at intervals. The transmitting assembly (100) comprises a ray source (110) and a first rotation drive mechanism (120). The output shaft of the first rotation drive mechanism (120) is connected to the ray source (110). The first rotation drive mechanism (120) drives the ray source (110) to rotate. The receiving assembly (200) comprises a detector (210) and a second rotation drive mechanism (220), wherein an output shaft of the second rotation drive mechanism (220) is connected to the detector (210), and the second rotation drive mechanism (220) drives the detector (210) to rotate. A measured area for placing the measured object (300) is provided between the transmitting component (100) and the receiving component (200), and the ray source (110), the measured object (300) and the detector (210) are located on the same straight line, so that the ray emitted by the ray source (110) passes through the measured object (300) and is received by the detector (210); The transmitting assembly (100) includes a mounting member (130), the mounting member (130) having a first mounting surface (a) and a second mounting surface (b) disposed opposite to each other, the angle between the first mounting surface (a) and the second mounting surface (b) being an acute angle, the output shaft of the first rotary drive mechanism (120) being connected to the first mounting surface (a), the first mounting surface (a) being perpendicular to the rotation axis (A) of the ray source (110), and the ray source (110) being disposed on the second mounting surface (b) so that the ray emission direction of the ray source (110) intersects the rotation axis (A); The transmitting assembly (100) further includes a first support plate (140) and a first linear drive mechanism (150), wherein an output shaft of the first rotation drive mechanism (120) is connected to the first support plate (140), the ray source (110) and the first linear drive mechanism (150) are both arranged on the first support plate (140), and the first linear drive mechanism (150) is connected to the ray source (110), and the first linear drive mechanism (150) drives the ray source (110) to move along a first direction, and the first direction is parallel to the rotation plane of the ray source (110).

2. The scanning imaging device according to claim 1, wherein: The rotation axis (A) of the ray source (110) and the rotation axis (A) of the detector (210) are the same axis, and the rotation angular velocity of the ray source (110) is the same as the rotation angular velocity of the detector (210).

3. The scanning imaging device according to claim 1, wherein: The mounting member (130) comprises a first flat plate (131), a wedge-shaped plate (132), and a second flat plate (133). The first flat plate (131) and the second flat plate (133) are respectively detachably connected to opposite sides of the wedge-shaped plate (132). A side of the first flat plate (131) facing away from the wedge-shaped plate (132) is the first mounting surface (a), and a side of the second flat plate (133) facing away from the wedge-shaped plate (132) is the second mounting surface (b).

4. The scanning imaging device according to claim 1, wherein: The receiving assembly (200) further includes a second support plate (230) and a second linear drive mechanism (240), wherein an output shaft of the second rotation drive mechanism (220) is connected to the second support plate (230), the detector (210) and the second linear drive mechanism (240) are both arranged on the second support plate (230), and the second linear drive mechanism (240) is connected to the detector (210), and the second linear drive mechanism (240) drives the detector (210) to move along a second direction, and the second direction is parallel to the rotation plane of the detector (210).

5. The scanning imaging device according to claim 4, characterized in that: At least one of the first linear drive mechanism (150) and the second linear drive mechanism (240) includes a rotational drive source (410), a screw rod (420) and a threaded sleeve (430), wherein the output shaft of the rotational drive source (410) is connected to the screw rod (420), the rotational drive source (410) drives the screw rod (420) to rotate, the screw rod (420) is threadedly engaged with the threaded sleeve (430), and the threaded sleeve (430) is connected to the detector (210) or the radiation source (110).

6. The scanning imaging device according to claim 5, characterized in that: At least one of the transmitting component (100) and the receiving component (200) further includes a limit sensor (500), wherein the limit sensor (500) is arranged on the first support plate (140) or the second support plate (230), and the limit sensor (500) is communicatively connected with the rotation drive source (410). When the limit sensor (500) detects that the detector (210) or the ray source (110) moves to an extreme position, the rotation drive source (410) stops working.

7. The scanning imaging device according to claim 6, wherein: The receiving assembly (200) further includes the mounting member (130), the mounting member (130) being connected to the threaded sleeve (430), and the mounting member (130) being provided with a baffle, and when the baffle is positioned relative to the limit sensor (500), the rotation drive source (410) stops working.

8. The scanning imaging device according to claim 5, wherein: The receiving assembly (200) further comprises the mounting member (130), the first mounting surface (a) faces the threaded sleeve (430), the radiation source (110) or the detector (210) is connected to the second mounting surface (b), At least one of the first linear drive mechanism (150) and the second linear drive mechanism (240) further includes a connecting member (440), wherein the connecting member (440) and the threaded sleeve (430) are sequentially arranged in the extension direction of the screw rod (420), and the connecting member (440) is respectively connected to the end of the threaded sleeve (430) and the end of the mounting member (130), and the connecting member (440) is provided with an opening for the screw rod (420) to pass through.

9. The scanning imaging device according to claim 8, characterized in that: The launching assembly (100) further comprises a first guide mechanism (600), the first guide mechanism (600) comprising a first guide rail (610) and a first slider (620), the first guide rail (610) being arranged on the first support plate (140), the first slider (620) being connected to a first mounting surface (a) of the mounting member (130) in the launching assembly (100), and the first guide rail (610) and the first slider (620) being slidably engaged in the first direction; The number of the first guide mechanisms (600) is at least two, and the first guide mechanisms (600) are arranged at intervals, wherein the two first guide mechanisms (600) are respectively arranged on both sides of the screw rod (420) in the first linear drive mechanism (150).

10. The scanning imaging device according to claim 8, wherein: The receiving assembly (200) further comprises a second guide mechanism (700), the second guide mechanism (700) comprising a second guide rail (710) and a second slider (720), the second guide rail (710) being arranged on the second support plate (230), the second slider (720) being connected to the first mounting surface (a) of the mounting member (130) in the receiving assembly (200), and the second guide rail (710) and the second slider (720) being slidably engaged in the second direction; The number of the second guide mechanisms (700) is at least two, and the second guide mechanisms (700) are arranged at intervals, wherein the two second guide mechanisms (700) are respectively arranged on both sides of the screw rod (420) in the second linear drive mechanism (240).

11. The scanning imaging device according to claim 4, characterized in that: At least one of the first rotary drive mechanism (120) and the second rotary drive mechanism (220) includes a rotary drive member (810) and an adapter ring (820), wherein the rotary drive member (810) includes a rotary output portion (811), and the adapter ring (820) is sleeved on the outside of the rotary output portion (811), and the adapter ring (820) is connected to the first support plate (140) or the second support plate (230), and the ring wall of the adapter ring (820) is provided with an opening (830) for wiring.

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