CN115389535A - Scanning imaging device - Google Patents
Scanning imaging device Download PDFInfo
- Publication number
- CN115389535A CN115389535A CN202210920227.2A CN202210920227A CN115389535A CN 115389535 A CN115389535 A CN 115389535A CN 202210920227 A CN202210920227 A CN 202210920227A CN 115389535 A CN115389535 A CN 115389535A
- Authority
- CN
- China
- Prior art keywords
- driving mechanism
- detector
- rotary driving
- radiation source
- source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
Abstract
The application discloses scanning image device belongs to scanning image technical field. The disclosed scanning imaging device comprises a transmitting assembly and a receiving assembly, wherein the transmitting assembly and the receiving assembly are arranged at intervals, the transmitting assembly comprises a ray source and a first rotary driving mechanism, an output shaft of the first rotary driving mechanism is connected with the ray source, and the first rotary driving mechanism drives the ray source to rotate; the receiving assembly comprises a detector and a second rotary driving mechanism, an output shaft of the second rotary driving mechanism is connected with the detector, the second rotary driving mechanism drives the detector to rotate, a detected area used for placing a detected object is arranged between the transmitting assembly and the receiving assembly, and the ray source, the detected object and the detector are located on the same straight line, so that rays emitted by the ray source are received by the detector after passing through the detected object. Therefore, the movement tracks of the ray source and the detector are circular, the control requirement on the driving mechanism is reduced, the ray source, the measured object and the detector are ensured to be positioned on the same straight line, and the imaging effect is improved.
Description
Technical Field
The application belongs to the technical field of scanning imaging, and particularly relates to a scanning imaging device.
Background
Industrial CT (computed tomography)The technology comprises the following steps of (1), Computed Tomography ) The method is characterized in that the internal structure, composition, material, defect condition and the like of the measured object are clearly, accurately and visually displayed in the form of a two-dimensional tomographic image or a three-dimensional stereo image under the condition of no damage to the measured object. Specifically, the ray emitted by the ray source irradiates the measured object and then projects to the detector, and the detector acquires the image of the measured object.
In the related art, the radiation source and the detector move in a translational manner in a motion plane by adopting an interpolation circle drawing mode, so as to acquire an image of a measured object. Specifically, the ray source and the detector are driven to move by two lead screw assemblies, wherein one lead screw assembly drives the ray source or the detector to move along a first direction, the other lead screw assembly drives the ray source or the detector to move along a second direction, the first direction is vertical to the second direction, therefore, the position of the ray source or the detector in a movement plane is adjusted by the two lead screw assemblies, the movement track of the ray source or the detector approaches to a circular track, and finally the detector acquires images of the object to be detected under different detection angles. In the process, the ray source, the measured object and the detector are always positioned on the same straight line so as to ensure that the ray of the ray source can be projected to the detector.
The control requirements on each lead screw assembly are high due to the requirements on the running tracks of the ray source and the detector; moreover, the moving tracks of the ray source and the detector are not regular circles, so that the ray source, the object to be detected and the detector are not accurately positioned on the same straight line, and the imaging effect is poor.
Disclosure of Invention
An object of the embodiments of the present application is to provide a scanning imaging apparatus, which can at least solve the problems of high control requirement on a driving mechanism and poor imaging effect of the scanning imaging apparatus in the related art.
The embodiment of the application provides a scanning image device, including emission subassembly and receiving assembly, wherein:
the emitting assembly and the receiving assembly are arranged at intervals, the emitting assembly comprises a ray source and a first rotary driving mechanism, an output shaft of the first rotary driving mechanism is connected with the ray source, the first rotary driving mechanism drives the ray source to rotate,
the receiving assembly comprises a detector and a second rotary driving mechanism, an output shaft of the second rotary driving mechanism is connected with the detector, the second rotary driving mechanism drives the detector to rotate,
the device comprises a transmitting assembly, a receiving assembly and a detector, wherein a detected area used for placing a detected object is arranged between the transmitting assembly and the receiving assembly, and the ray source, the detected object and the detector are positioned on the same straight line, so that rays emitted by the ray source pass through the detected object and then are received by the detector.
In the embodiment of the application, under the driving action of the first rotary driving mechanism and the second rotary driving mechanism, the motion tracks of the ray source and the detector are circular, the first rotary driving mechanism and the second rotary driving mechanism do not need to be controlled continuously to ensure the motion tracks of the ray source and the detector, and the control requirement on the driving mechanisms is reduced; in addition, the movement tracks of the ray source and the detector are regular circles, so that the ray source, the detected object and the detector can be accurately positioned on the same straight line in the rotating process of the ray source and the detector, effective imaging is guaranteed, and the imaging effect is improved.
Drawings
FIG. 1 is a front view of a scanning imaging device as disclosed in an embodiment of the present application;
FIG. 2 is a schematic diagram of a radiation source, a detector and a measured object in an imaging process according to an embodiment of the disclosure;
FIG. 3 is a schematic structural diagram of a launch assembly disclosed in an embodiment of the present application;
FIG. 4 is an exploded view of a launch assembly disclosed in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a receiving assembly disclosed in an embodiment of the present application.
Description of the reference numerals:
100-emission assembly, 110-ray source, 120-first rotary driving mechanism, 130-mounting piece, 131-first flat plate, a-first mounting surface, 132-wedge-shaped plate, 133-second flat plate, b-second mounting surface, 140-first supporting plate, 150-first linear driving mechanism,
200-receiving component, 210-detector, 220-second rotary driving mechanism, 230-second supporting plate, 240-second linear driving mechanism,
300-the measured object,
410-rotary drive source, 420-screw rod, 430-thread sleeve, 440-connecting piece, 450-screw rod supporting block, 460-bearing, 470-drive source mounting block, 480-coupler,
500-limit sensor,
600-a first guide mechanism, 610-a first guide rail, 620-a first slide block,
700-a second guide mechanism, 710-a second guide rail, 720-a second slide block,
810-rotary drive, 811-rotary output, 820-adapter ring, 830-opening,
A-axis of rotation.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The scanning imaging device provided by the embodiment of the present application is described in detail with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Referring to fig. 1 to 5, a scanning imaging apparatus disclosed in the embodiment of the present application includes a transmitting assembly 100 and a receiving assembly 200. The transmitting assembly 100 and the receiving assembly 200 are arranged at intervals, and a measured area for placing the measured object 300 is arranged between the transmitting assembly 100 and the receiving assembly 200, namely, the measured object 300 is positioned between the transmitting assembly 100 and the receiving assembly 200.
The emitting assembly 100 includes a radiation source 110 and a first rotation driving mechanism 120, wherein a radiation emitting position of the radiation source 110 faces the receiving assembly 200, and an output shaft of the first rotation driving mechanism 120 is connected to the radiation source 110, so that the first rotation driving mechanism 120 drives the radiation source 110 to rotate, which means that the whole radiation source 110 rotates around the first rotation axis, but not the radiation source 110 rotates. Alternatively, the first rotary drive mechanism 120 may be an electric motor or a rotary motor.
The receiving assembly 200 includes a detector 210 and a second rotation driving mechanism 220, the ray receiving position of the detector 210 faces the emitting assembly 100, and the output shaft of the second rotation driving mechanism 220 is connected to the detector 210, so that the second rotation driving mechanism 220 drives the detector 210 to rotate, which also means that the whole of the detector 210 rotates around a second rotation axis, rather than the detector 210 rotates. Alternatively, the second rotary drive mechanism 220 may be an electric motor or a rotary motor.
Under the condition that the object 300 to be measured is placed in the area to be measured, the radiation source 110, the object 300 to be measured and the detector 210 are located on the same straight line, so that the radiation emitted by the radiation source 110 is received by the detector 210 after passing through the object 300 to be measured, and the detector 210 can acquire the image of the object 300 to be measured. The object 300 to be tested may be a circuit board. Optionally, in the process of rotating the radiation source 110, the detector 210 rotates along with the radiation source 110, and the rotation speed of the first rotary driving mechanism 120 and the rotation speed of the second rotary driving mechanism 220 may be adjusted as needed to keep the radiation source 110, the object 300 to be measured, and the detector 210 all the time located on the same straight line, so that the detector 210 can always acquire each image of the object 300 to be measured in the circumferential direction.
In the embodiment of the present application, under the driving action of the first rotary driving mechanism 120 and the second rotary driving mechanism 220, the motion trajectories of the radiation source 110 and the detector 210 are circular, and the first rotary driving mechanism 120 and the second rotary driving mechanism 220 do not need to be continuously controlled to ensure the motion trajectories of the radiation source 110 and the detector 210, so that the control requirement on the driving mechanisms is reduced; moreover, because the movement trajectories of the radiation source 110 and the detector 210 are regular circles, the radiation source 110, the object 300 to be measured and the detector 210 can be ensured to be accurately positioned on the same straight line in the rotation process of the radiation source 110 and the detector 210, effective imaging is ensured, and the imaging effect is improved. Moreover, after the position of the radiation source 110 is determined, when the radiation source 110 rotates, the portion of the radiation source 110 closest to the first rotation axis does not change, and further, the closest radiation to the first rotation axis among the radiation emitted by the radiation source 110 is always the same portion of radiation, in other words, the radiation inside the central radiation among the radiation emitted by the radiation source 110 is always kept inside the central radiation, and the radiation outside the central radiation is always kept outside the central radiation, so that the uniformity of the radiation is basically unchanged on the same circumference around the first rotation axis, and the imaging difference is avoided.
In an alternative embodiment, the first axis of rotation and the second axis of rotation may be different axes. In this way, during the rotation of the radiation source 110 and the detector 210, the rotation speed of the first rotary driving mechanism 120 and the rotation speed of the second rotary driving mechanism 220 can be adjusted at any time, so as to ensure that the radiation source 110, the object 300 to be measured and the detector 210 are always located on the same straight line.
In another alternative embodiment, the rotation axis of the radiation source 110 and the rotation axis of the detector 210 are the same axis, that is, the first rotation axis and the second rotation axis are the same axis, the rotation plane of the radiation source 110 and the rotation plane of the detector 210 are parallel, the object 300 in the measured area passes through the rotation axis, and the rotation angular velocity of the radiation source 110 is the same as the rotation angular velocity of the detector 210. Specifically, the output shaft of the first rotary driving mechanism 120 uses the first rotation axis as an axis, and the output shaft of the second rotary driving mechanism 220 uses the second rotation axis as an axis, so that the radiation source 110 and the detector 210 rotate coaxially. Therefore, the radiation source 110, the object 300 to be measured and the detector 210 are only kept to be positioned on the same straight line at the initial position, and in the rotating process of the radiation source 110 and the detector 210, the rotating speed of the first rotary driving mechanism 120 and the rotating speed of the second rotary driving mechanism 220 do not need to be adjusted constantly, and the radiation source 110, the object 300 to be measured and the detector 210 can still be ensured to be positioned on the same straight line all the time, so that the detector 210 continuously acquires images of the object 300 to be measured at different detection angles, and the control requirements on the first rotary driving mechanism 120 and the second rotary driving mechanism 220 are reduced.
In the related art, the radiation source 110 and the detector 210 move in a translational manner in the motion plane by using an interpolation drawing circle, so as to acquire an image of the object 300 to be detected, but the center of the motion track of the radiation source 110 and the center of the motion track of the detector 210 are dynamic virtual positions, which is difficult to effectively detect, so that it is difficult to ensure that the projection of the center of the motion track of the radiation source 110 and the projection of the center of the motion track of the detector 210 in the motion plane coincide, thereby resulting in poor imaging effect. By adopting the scheme of the present application, the circle centers of the movement trajectories of the radiation source 110 and the detector 210 are not dynamic virtual positions, and the positions of the first rotary driving mechanism 120 and the second rotary driving mechanism 220 can be set as required to determine the rotation axis a of the radiation source 110 and the detector 210, so as to ensure that the radiation source 110 and the detector 210 are continuously coaxial in the movement process, further ensure that the radiation source 110, the object 300 to be measured and the detector 210 are always located on the same straight line, ensure effective imaging, and improve the imaging effect.
In an alternative embodiment, the radiation module 100 includes a mounting member 130, the mounting member 130 has a first mounting surface a and a second mounting surface b opposite to each other, the first mounting surface a is parallel to the second mounting surface b, an output shaft of the first rotary driving mechanism 120 is connected to the first mounting surface a, the first mounting surface a is perpendicular to the rotation axis a of the radiation source 110, and the radiation source 110 is disposed on the second mounting surface b, in which case the radiation emitting direction of the radiation source 110 may be parallel to the rotation axis a. In this case, if the distance between the position of the radiation source 110 and the detector 210 is relatively large, in order to ensure that the radiation emitted from the radiation source 110 reaches the object 300 to be detected and the detector 210, and to implement complete imaging of the object 300 to be detected, the radiation source 110 is required to support a relatively large radiation emission angle (the radiation can be supported to cover the object 300 to be detected only by a relatively large emission angle), that is, the parameter requirement on the radiation source 110 is relatively high, and the radiation source 110 is not suitable for being compatible with the radiation source 110 with a relatively small radiation emission angle.
Therefore, in another embodiment, the included angle between the first mounting surface a and the second mounting surface b is preferably an acute angle, and in this case, as shown in fig. 1 to 3, the central ray emitting direction of the ray source 110 intersects with the rotation axis a. So, ray source 110 can incline towards measured object 300, compares the condition that ray emission direction and axis of rotation A parallel of ray source 110, for realizing the complete formation of image of measured object 300, requires relatively lowly to the angle of ray emission angle of ray source 110, even be the less ray source of ray emission angle, this scheme also can be suitable for. Further, the distance between the radiation source 110 and the detector 210 can be adjusted by adjusting the positions of the radiation source 110 and the detector 210 on the plane parallel to the first mounting surface a, respectively, so as to further reduce the angle requirement on the radiation emission angle of the radiation source 110, for example, as the distance between the radiation source 110 and the detector 210 is reduced, the required radiation emission angle of the radiation source 110 can be correspondingly smaller, thereby increasing the type selection range of the radiation source 110.
In an alternative embodiment, as shown in fig. 4, the mounting member 130 includes a first plate 131, a wedge plate 132, and a second plate 133, the first plate 131 and the second plate 133 are respectively detachably connected to two opposite sides of the wedge plate 132, the first plate 131 and the second plate 133 are respectively in contact with the wedge plate 132, a surface of the first plate 131 facing away from the wedge plate 132 is a first mounting surface a, and a surface of the second plate 133 facing away from the wedge plate 132 is a second mounting surface b. Alternatively, the first plate 131 and the wedge plate 132, and the second plate 133 and the wedge plate 132 may be detachably connected by bolts or the like. In practical applications, the second plate 133 and the wedge plate 132 may be connected, the radiation source 110 may be mounted on the second plate 133, the radiation source 110 may be connected to the wedge plate 132, the first plate 131 may be connected to the first rotation driving mechanism 120, and the wedge plate 132 may be connected to the first plate 131. Thus, by arranging the wedge-shaped plate 132 and sequentially installing each component, the ray source 110 can be obliquely arranged, the ray emission direction is intersected with the rotation axis A, the installation is convenient, a complex installation environment does not need to be created for the ray source 110, the surface area of the wedge-shaped plate 132 is large, and a larger supporting force can be provided compared with a frame structure.
In the solution of the present application, the emission assembly 100 further includes a first supporting plate 140 and a first linear driving mechanism 150, an output shaft of the first rotary driving mechanism 120 is connected to the first supporting plate 140, the radiation source 110 and the first linear driving mechanism 150 are both disposed on the first supporting plate 140, and the first linear driving mechanism 150 is connected to the radiation source 110, the first linear driving mechanism 150 drives the radiation source 110 to move along a first direction, the first direction is parallel to a rotation plane of the radiation source 110, and the first direction can be perpendicular to the rotation axis a. The first linear driving mechanism 150 may be a linear driving module, an air cylinder, or other components 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 driving mechanism 150 are disposed on the first surface of the first support plate 140, and the first rotary driving mechanism 120 is disposed on the second surface of the first support plate 140.
With the present embodiment, the position of the radiation source 110 in the first direction is changed, the position of the radiation is changed, and the position of the radiation relative to the object 300 to be measured is changed, so that the angles of the beam irradiating the same position of the object 300 to be measured are different before and after the radiation source 110 moves, that is, the same position of the object 300 to be measured is irradiated by the radiation of different angles, and a more comprehensive image of the object 300 to be measured is obtained. For example, before the radiation source 110 moves, the position a on the object 300 cannot be irradiated by the radiation, and the detector 210 cannot acquire an image of the position a; after the radiation source 110 moves, the position a can be irradiated with radiation, so the detector 210 can acquire an image of the position a. Therefore, by moving the position of the radiation source 110 in the first direction, the detector 210 can acquire images of the object 300 under different angles of radiation, which is beneficial for acquiring a complete image of the object 300.
In an alternative embodiment, the receiving assembly 200 further includes a second supporting plate 230 and a second linear driving mechanism 240, an output shaft of the second rotary driving mechanism 220 is connected to the second supporting plate 230, the detector 210 and the second linear driving mechanism 240 are both disposed on the second supporting plate 230, the second linear driving mechanism 240 is connected to the detector 210, the second linear driving mechanism 240 drives the detector 210 to move along a second direction, the second direction is parallel to a rotation plane of the detector 210, and the second direction may be perpendicular to the rotation axis a. The second linear driving mechanism 240 may be a linear driving module, an air cylinder, or other components capable of generating linear displacement. Alternatively, the second support plate 230 has a third surface and a fourth surface opposite to each other, the detector 210 and the first linear driving mechanism 150 are disposed on the third surface of the second support plate 230, and the second rotary driving mechanism 220 is disposed on the fourth surface of the second support plate 230.
Specifically, in the case where the radiation source 110 is moved in the first direction to be close to the rotation axis a, the detector 210 is moved in the second direction to be close to the rotation axis a; with the radiation source 110 moving in a first direction away from the axis of rotation A, the detector 210 moves in a second direction away from the axis of rotation A. Moreover, when the radiation source 110, the object 300 to be measured and the detector 210 are located on the same straight line, the moving distance of the radiation source 110 is in a certain proportion to the moving distance of the detector 210, so that the connecting line between the center of the radiation source 110 and the center of the detector 210 always passes through the object 300 to be measured. In this embodiment, before the first rotary driving mechanism 120 and the second rotary driving mechanism 220 operate, the first linear driving mechanism 150 and the second linear driving mechanism 240 respectively drive the radiation source 110 and the detector 210 to move to suitable positions, so that the radiation source 110, the object 300 to be measured and the detector 210 are located on the same straight line, and after the position of the radiation source 110 in the first direction and the position of the detector 210 in the second direction are determined, the first rotary driving mechanism 120 and the second rotary driving mechanism 220 are controlled to operate.
By adopting the embodiment, the position of the detector 210 in the second direction can be adjusted according to the moving position of the radiation source 110 in the first direction, so that the radiation source 110, the object 300 to be detected and the detector 210 are always accurately positioned on the same straight line, and the imaging effect of the detector 210 at each detection angle is improved.
In an alternative embodiment, at least one of the first linear driving mechanism 150 and the second linear driving mechanism 240 includes a rotary driving source 410, a lead screw 420, and a threaded sleeve 430, an output shaft of the rotary driving source 410 is connected to the lead screw 420, an extending direction of the lead screw 420 is a first direction or a second direction, the rotary driving source 410 drives the lead screw 420 to rotate, the lead screw 420 is in threaded engagement with the threaded sleeve 430, and the threaded sleeve 430 is connected to the detector 210 or the radiation source 110. In the scanning imaging process, the screw rod 420 is driven to rotate by the rotary driving source 410, the threaded sleeve 430 moves along the extension direction of the screw rod 420, and the threaded sleeve 430 drives the detector 210 or the radiation source 110 to move, so as to adjust the moving position of the radiation source 110 or the detector 210. Alternatively, the rotation driving source 410 may be an electric motor, a pneumatic motor, or the like, and the threaded sleeve 430 may be a nut; as shown in fig. 4, the first support plate 140 or the second support plate 230 is provided with a lead screw support block 450, the lead screw support block 450 is provided with a through hole for the lead screw 420 to pass through, and the lead screw 420 and the lead screw support block 450 are rotatably connected through a bearing 460; the rotary driving source 410 is mounted on the first support plate 140 or the second support plate 230 through a driving source mounting block 470, and an output shaft of the rotary driving source 410 is connected to the lead screw 420 through a coupling 480.
With the present embodiment, the screw rod 420 and the threaded sleeve 430 are utilized to convert the rotational power of the rotational driving source 410 into the linear movement power, so that the transmission efficiency is high, and the radiation source 110 is ensured to stably move along the first direction, or the detector 210 is ensured to stably move along the second direction.
In an alternative embodiment, at least one of the emitting assembly 100 and the receiving assembly 200 further comprises a limit sensor 500, the limit sensor 500 is mounted on the first support plate 140 or the second support plate 230, the limit sensor 500 is communicatively connected to the rotation driving source 410, and the rotation driving source 410 stops working in case that the limit sensor 500 detects that the detector 210 or the radiation source 110 moves to a limit position. Optionally, the limit sensor 500 may be a photoelectric sensor or a limit switch; the limit sensor 500 may be directly connected to the rotation driving source 410 in a communication manner, or the scanning imaging apparatus further includes a controller, the limit sensor 500 and the rotation driving source 410 are respectively connected to the controller in a communication manner, the limit sensor 500 transmits information that the detector 210 or the radiation source 110 moves to a limit position to the controller, and the controller controls the rotation driving source 410 to stop operating according to the information. In the present embodiment, at least two limit sensors 500 are provided at intervals in the extending direction of the screw rod 420.
The limit sensor 500 is used for limiting the moving range of the radiation source 110 or the detector 210 in the extending direction of the screw rod 420, and the radiation source 110 or the detector 210 is prevented from moving too far.
In an alternative embodiment, at least one of the emitting assembly 100 and the receiving assembly 200 further includes a mounting member 130, the mounting member 130 is connected to the threaded sleeve 430, the mounting member 130 is provided with a stop (not shown in the drawings), and in a case where the stop is opposite to the position of the limit sensor 500 (i.e., when the stop is in the position in this case, the limit sensor 500 can be triggered to detect whether the detector 210 or the radiation source 110 moves to the limit position), it is indicated that the detector 210 or the radiation source 110 moves to the limit position, and at this time, the rotary drive source 410 stops working, and the detector 210 or the radiation source 110 stops moving. Alternatively, the limit sensor 500 may be a photoelectric sensor, and in a case where the blocking piece is staggered from the photoelectric sensor (for example, the blocking piece is not located in a groove for emitting a light beam by the photoelectric sensor), the blocking piece does not block the light beam by the photoelectric sensor; in a case where the position of the blocking piece is opposite to the position of the photoelectric sensor (for example, the blocking piece is located in a groove for emitting a light beam by the photoelectric sensor), the blocking piece blocks the light beam by the photoelectric sensor, so that an output signal of the photoelectric sensor changes, and the rotation driving source 410 is controlled to stop operating based on the changed signal. By adopting the embodiment, the baffle plate and the limit sensor can accurately detect whether the radiation source 110 or the detector 210 moves to the limit position, so as to limit and protect the radiation source 110 or the detector 210.
In an alternative embodiment, at least one of the emitting assembly 100 and the receiving assembly 200 further includes a mounting member 130, the mounting member 130 is provided with a first mounting surface a and a second mounting surface b, the first mounting surface a faces the thread sleeve 430, 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 driving mechanism 150 and the second linear driving mechanism 240 further includes a connecting member 440, the connecting member 440 and the threaded sleeve 430 are sequentially disposed in an extending direction of the screw rod 420, and the connecting member 440 is respectively connected to an end of the threaded sleeve 430 and an 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 obstructing the rotation of the screw rod 420. Alternatively, flanges are provided at both the end of the threaded sleeve 430 and the end of the mounting member 130, the connecting member 440 is provided with a mounting hole, and a fastening member such as a screw is inserted through the mounting hole and screwed to the flange, so as to connect the threaded sleeve 430 and the connecting member 440 and connect the mounting member 130 and the connecting member 440.
Therefore, the connecting member 440 is used for connecting the threaded sleeve 430 and the mounting member 130 respectively, so that the mounting member 130 is indirectly connected with the threaded sleeve 430, the problem that the mounting member 130 is not directly connected with the threaded sleeve 430 conveniently is solved, the mounting member 130 moves along the extending direction of the screw rod 420 along with the threaded sleeve 430, and the radiation source 110 or the detector 210 is driven to move along the extending direction of the screw rod 420.
Optionally, the mounting member 130 of the emitting assembly 100 may be the mounting member 130 described above, that is, the mounting member 130 includes a first plate 131, a wedge plate 132 and a second plate 133, the first plate 131 and the second plate 133 are respectively detachably connected to opposite sides of the wedge plate 132, a side of the first plate 131 facing away from the wedge plate 132 is a first mounting surface a, the first mounting surface a faces the thread sleeve 430, a side of the second plate 133 facing away from the wedge plate 132 is a second mounting surface b, the radiation source 110 is disposed on the second mounting surface b, and an end of the second plate 133 is connected to the connecting member 440, further, when the mounting member 130 needs to be provided with a baffle, the baffle may be mounted on an end of the first plate 131.
Optionally, the mounting member 130 of the receiving assembly 200 may include a first plate 131, two opposite surfaces of the first plate 131 are a first mounting surface a and a second mounting surface b, respectively, the threaded sleeve 430 faces the first mounting surface a, the detector 210 is disposed on the second mounting surface b, and an end of the first plate 131 is connected to the connecting member 440, and further, when the mounting member 130 needs to be provided with a blocking piece, the blocking piece may be mounted on an end of the first plate 131.
In an alternative embodiment, the launching assembly 100 further comprises a first guiding mechanism 600, the first guiding mechanism 600 comprises a first guiding rail 610 and a first sliding block 620, the first guiding rail 610 is disposed on the first supporting plate 140, the first sliding block 620 is connected to the first mounting surface a of the mounting member 130 in the launching assembly 100, and the first guiding rail 610 is slidably fitted with the first sliding block 620 in the first direction. The guiding direction of the first guiding rail 610 is the extending direction of the wire rod 420 in the first linear driving mechanism 150, i.e. the first direction mentioned above. In this way, the first guide mechanism 600 guides the moving direction of the radiation source 110, and prevents the moving direction of the radiation source 110 from being shifted.
Optionally, the number of the first guide mechanisms 600 is at least two, each first guide mechanism 600 is disposed at intervals, two first guide mechanisms 600 are disposed on two sides of the screw rod 420 of the first linear driving mechanism 150, that is, two first guide mechanisms 600 are disposed on two sides of the first linear driving mechanism 150, and 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 way, the radiation source 110 is accurately guided by the at least two first guiding mechanisms 600, and the mounting member 130 and the radiation source 110 can be supported from both sides of the first linear driving mechanism 150, thereby ensuring the stability of the radiation source 110 during the movement.
In another alternative embodiment, the receiving assembly 200 further comprises a second guiding mechanism 700, the second guiding mechanism 700 comprises a second guiding rail 710 and a second sliding block 720, the second guiding rail 710 is disposed on the second supporting plate 230, the second sliding block 720 is connected with the first mounting surface a of the mounting member 130 in the receiving assembly 200, and the second guiding rail 710 is slidably engaged with the second sliding block 720 in the second direction. The guiding direction of the second guiding rail 710 is the extending direction of the wire rod 420 in the second linear driving mechanism 240, i.e. the second direction mentioned above. In this way, the second guide mechanism 700 guides the movement direction of the probe 210, and prevents the movement direction of the probe 210 from being shifted.
Optionally, the number of the second guide mechanisms 700 is at least two, each of the second guide mechanisms 700 is disposed at intervals, wherein two of the second guide mechanisms 700 are disposed on two sides of the screw rod 420 of the second linear driving mechanism 240, respectively, that is, two of the second guide mechanisms 700 are disposed on two sides of the second linear driving mechanism 240, respectively, and the second slider 720 of each of the second guide mechanisms 700 is connected to the first mounting surface a of the first flat plate 131. In this way, the probe 210 is accurately guided by the at least two second guide mechanisms 700, and the mounting member 130 and the probe 210 can be supported from both sides of the second linear driving mechanism 240, thereby ensuring stability of the probe 210 during movement.
In the solution of the present application, at least one of the first rotary driving mechanism 120 and the second rotary driving mechanism 220 includes a rotary driving member 810 and an adapter ring 820, the rotary driving member 810 includes a rotary output portion 811, the adapter ring 820 is sleeved outside the rotary output portion 811, and the adapter ring 820 is connected to the first supporting plate 140 or the second supporting plate 230, when the rotary driving member 810 works, the rotary output portion 811 rotates and drives the first supporting plate 140 or the second supporting plate 230 to rotate through the adapter ring 820, and moreover, a wall of the adapter ring 820 is provided with an opening 830 for routing. As shown in fig. 4, the lines may pass through the rotary output 811, the center region of the adapter ring 820, and the opening 830 of the adapter ring 820 in this order, thereby routing the lines to the outside as needed. Alternatively, the rotary drive 810 may be a rotary motor.
Through the matching structure of the rotary output part 811 and the adapter ring 820, the output shaft of the rotary driving member 810 can stably drive the first support plate 140 or the second support plate 230 to rotate; furthermore, by providing the opening 830, wiring can be routed out of the first rotary drive mechanism 120 or the second rotary drive mechanism 220 as needed.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.
Claims (13)
1. A scanning imaging apparatus, comprising a transmit assembly (100) and a receive assembly (200), wherein:
the emitting component (100) and the receiving component (200) are arranged at intervals, the emitting component (100) comprises a ray source (110) and a first rotary driving mechanism (120), an output shaft of the first rotary driving mechanism (120) is connected with the ray source (110), the first rotary driving mechanism (120) drives the ray source (110) to rotate,
the receiving assembly (200) comprises a detector (210) and a second rotary driving mechanism (220), an output shaft of the second rotary driving mechanism (220) is connected with the detector (210), the second rotary driving mechanism (220) drives the detector (210) to rotate,
a detected area for placing a detected object (300) is arranged between the transmitting assembly (100) and the receiving assembly (200), and the ray source (110), the detected object (300) and the detector (210) are positioned on the same straight line, so that rays emitted by the ray source (110) are received by the detector (210) after passing through the detected object (300).
2. The scanning imaging device according to claim 1, characterized in that the axis of rotation (a) of the source of radiation (110) is the same axis as the axis of rotation (a) of the detector (210), and the angular velocity of rotation of the source of radiation (110) is the same as the angular velocity of rotation of the detector (210).
3. The scanning imaging device according to claim 1, wherein the emission assembly (100) comprises a mounting member (130), the mounting member (130) has a first mounting surface (a) and a second mounting surface (b) which are oppositely arranged, an included angle between the first mounting surface (a) and the second mounting surface (b) is an acute angle, an output shaft of the first rotary driving mechanism (120) is connected to the first mounting surface (a), the first mounting surface (a) is perpendicular to a rotation axis (a) of the radiation source (110), and the radiation source (110) is arranged on the second mounting surface (b) so that a radiation emission direction of the radiation source (110) intersects with the rotation axis (a).
4. A scanning imaging device according to claim 3, wherein said mounting member (130) comprises a first plate (131), a wedge plate (132) and a second plate (133), said first plate (131) and said second plate (133) are respectively detachably connected to two opposite sides of said wedge plate (132), a side of said first plate (131) facing away from said wedge plate (132) is said first mounting surface (a), and a side of said second plate (133) facing away from said wedge plate (132) is said second mounting surface (b).
5. The scanning imaging device according to claim 1, wherein the emitting assembly (100) further comprises a first support plate (140) and a first linear driving mechanism (150), an output shaft of the first rotary driving mechanism (120) is connected to the first support plate (140), the radiation source (110) and the first linear driving mechanism (150) are both disposed on the first support plate (140), and the first linear driving mechanism (150) is connected to the radiation source (110), the first linear driving mechanism (150) drives the radiation source (110) to move along a first direction, and the first direction is parallel to a rotation plane of the radiation source (110).
6. The scanning imaging device according to claim 5, wherein the receiving assembly (200) further comprises a second supporting plate (230) and a second linear driving mechanism (240), an output shaft of the second rotary driving mechanism (220) is connected to the second supporting plate (230), the detector (210) and the second linear driving mechanism (240) are both disposed on the second supporting plate (230), and the second linear driving mechanism (240) is connected to the detector (210), the second linear driving mechanism (240) drives the detector (210) to move along a second direction, and the second direction is parallel to a rotation plane of the detector (210).
7. The scanning imaging device according to claim 6, wherein at least one of the first linear driving mechanism (150) and the second linear driving mechanism (240) comprises a rotary driving source (410), a lead screw (420) and a threaded sleeve (430), an output shaft of the rotary driving source (410) is connected with the lead screw (420), the rotary driving source (410) drives the lead screw (420) to rotate, the lead screw (420) is in threaded fit with the threaded sleeve (430), and the threaded sleeve (430) is connected with the detector (210) or the radiation source (110).
8. The scanning imaging device according to claim 7, characterized in that at least one of the emitting assembly (100) and the receiving assembly (200) further comprises a limit sensor (500), the limit sensor (500) is disposed on the first support plate (140) or the second support plate (230), the limit sensor (500) is in communication connection with the rotation driving source (410), and the rotation driving source (410) stops working in case the limit sensor (500) detects that the detector (210) or the radiation source (110) moves to a limit position.
9. The scanning imaging device according to claim 8, characterized in that at least one of the emitting assembly (100) and the receiving assembly (200) further comprises a mounting member (130), the mounting member (130) is connected with the threaded sleeve (430), the mounting member (130) is provided with a stop, and the rotation driving source (410) stops working under the condition that the stop is opposite to the position of the limit sensor (500).
10. The scanning imaging device according to claim 7, characterized in that at least one of the emitting assembly (100) and the receiving assembly (200) further comprises a mounting member (130), the mounting member (130) is provided with a first mounting surface (a) and a second mounting surface (b) opposite to each other, the first mounting surface (a) faces the thread sleeve (430), and the radiation source (110) or the detector (210) is connected with the second mounting surface (b),
at least one of the first linear driving mechanism (150) and the second linear driving mechanism (240) further comprises a connecting piece (440), the connecting piece (440) and the threaded sleeve (430) are sequentially arranged in the extending direction of the screw rod (420), the connecting piece (440) is respectively connected with the end part of the threaded sleeve (430) and the end part of the mounting piece (130), and the connecting piece (440) is provided with an opening for the screw rod (420) to penetrate through.
11. The scanning imaging device according to claim 10, wherein the emitting assembly (100) further comprises a first guiding mechanism (600), the first guiding mechanism (600) comprises a first guiding rail (610) and a first sliding block (620), the first guiding rail (610) is arranged on the first supporting plate (140), the first sliding block (620) is connected with a first mounting surface (a) of a mounting part (130) in the emitting assembly (100), and the first guiding rail (610) is in sliding fit with the first sliding block (620) in the first direction;
the number of the first guide mechanisms (600) is at least two, the first guide mechanisms (600) are arranged at intervals, and the two first guide mechanisms (600) are respectively arranged on two sides of a screw rod (420) in the first linear driving mechanism (150).
12. The scanning imaging device according to claim 10, wherein said receiving assembly (200) further comprises a second guiding mechanism (700), said second guiding mechanism (700) comprises a second guiding rail (710) and a second sliding block (720), said second guiding rail (710) is arranged on said second supporting plate (230), said second sliding block (720) is connected with a first mounting surface (a) of a mounting member (130) in said receiving assembly (200), and said second guiding rail (710) is slidably engaged with said second sliding block (720) in said second direction;
the number of the second guide mechanisms (700) is at least two, the second guide mechanisms (700) are arranged at intervals, and the two second guide mechanisms (700) are respectively arranged on two sides of a screw rod (420) in the second linear driving mechanism (240).
13. The scanning imaging device according to claim 6, wherein at least one of the first rotary driving mechanism (120) and the second rotary driving mechanism (220) comprises a rotary driving member (810) and an adapter ring (820), the rotary driving member (810) comprises a rotary output part (811), the adapter ring (820) is sleeved outside the rotary output part (811), the adapter ring (820) is connected with the first support plate (140) or the second support plate (230), and the annular wall of the adapter ring (820) is provided with an opening (830) for wiring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210920227.2A CN115389535A (en) | 2022-08-01 | 2022-08-01 | Scanning imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210920227.2A CN115389535A (en) | 2022-08-01 | 2022-08-01 | Scanning imaging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115389535A true CN115389535A (en) | 2022-11-25 |
Family
ID=84117854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210920227.2A Pending CN115389535A (en) | 2022-08-01 | 2022-08-01 | Scanning imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115389535A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117169257A (en) * | 2023-11-01 | 2023-12-05 | 上海超群检测科技股份有限公司 | X-ray imaging device |
-
2022
- 2022-08-01 CN CN202210920227.2A patent/CN115389535A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117169257A (en) * | 2023-11-01 | 2023-12-05 | 上海超群检测科技股份有限公司 | X-ray imaging device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2507507C1 (en) | Scanning device using radiation beam for backscattering imaging and method thereof | |
| EP2915488B1 (en) | Computer tomography with a detector following the movement of a pivotable x-ray source | |
| JP4564827B2 (en) | 3D position measurement sensor | |
| CN115389535A (en) | Scanning imaging device | |
| CN101210892A (en) | Composite revolving conveying workstation for aviation container CT detection | |
| KR20100101084A (en) | Multiple image collection and synthesis for personnel screening | |
| CN209075885U (en) | Rotary experiment porch | |
| KR20130057653A (en) | Medical imaging apparatus | |
| CN112710683A (en) | CT detection device and detection method | |
| CN109373106A (en) | Device is spied out by adjustable pipeline omnidirectional | |
| CN201285377Y (en) | Radiation beam scanning apparatus for back scattering imaging | |
| CN108776002A (en) | A kind of uniform source of light angle homogeneity test device and method | |
| CN111239074A (en) | Terahertz detection robot and detection method | |
| CN112557425B (en) | CT detection device and tape stop control method | |
| CN207610995U (en) | A kind of test platform for computer dislocation scanning and imaging system | |
| CN116893184A (en) | Special leaky ray detection equipment and detection method for X-ray tube assembly | |
| CN1392402A (en) | X-ray CT device | |
| CN209486011U (en) | A kind of x-ray detection platform | |
| KR100532850B1 (en) | X-ray inspection system | |
| CN211148934U (en) | Afterglow test mechanism of scintillator | |
| CN109540939A (en) | A kind of x-ray detection platform | |
| CN200989887Y (en) | Compound rotary delivery working table used for aerospace container CT detection | |
| CN115307587A (en) | Position precision detection device and position precision detection method of slicing system | |
| CN114018183A (en) | Device and method for measuring flatness of tower barrel | |
| NL8301033A (en) | RADIANT WITH MEMBRANE DRIVE FOR AN OBJECT CARRIER. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |