CN114994093A - Radiation imaging system - Google Patents

Abstract

Embodiments of the present disclosure disclose a radiation imaging system for a workpiece, comprising: the bearing assembly is used for bearing a workpiece to be detected; the radiation source assembly and the detector assembly are respectively arranged on two sides of the bearing assembly, the radiation source assembly is used for emitting rays, and the detector assembly is used for receiving rays; and the moving assembly is arranged at the lower sides of the ray source assembly, the detector assembly and the bearing assembly and is used for driving the ray source assembly, the detector assembly and the bearing assembly to move in an omnidirectional manner. In the radiation imaging system, the bearing assembly, the ray source assembly and the detector assembly can obtain the motion of multiple degrees of freedom through the moving assembly, and the relative position relation of the bearing assembly, the ray source assembly and the detector assembly is conveniently adjusted, so that the scanning mode is more flexible, and the adaptability is stronger.

Description

Radiation Imaging System

technical field

Embodiments of the present disclosure relate to the field of security inspection technologies, and in particular, to a radiation imaging system.

Background technique

The existing radiation imaging system adopts a vertical placement method, and the workpiece is vertically installed on a vertical turntable, and the ray source and detector are fixed on the ground on both sides of the workpiece. Since neither the ray source nor the detector can move, they cannot adapt to The need for changing venues.

SUMMARY OF THE INVENTION

The embodiments of the present disclosure aim to solve at least one of the technical problems existing in the prior art.

For example, the embodiments of the present disclosure provide a radiation imaging system for a workpiece, which can move to different scenes for operations according to actual needs, and more conveniently control the positional relationship among the workpiece, the radiation source, and the detector.

To this end, embodiments of the present disclosure provide a radiation imaging system for a workpiece, including: a carrier assembly for carrying the workpiece to be inspected; a radiation source assembly and a detector assembly, the radiation source assembly and the detector assembly are respectively are arranged on both sides of the carrying component, the radiation source component is used for emitting radiation, the detector component is used for receiving radiation; and a moving component, wherein the moving component is arranged on the radiation source component, the The lower side of the detector assembly and the carrying assembly, and the moving assembly is used to drive the radiation source assembly, the detector assembly and the carrying assembly to move in an omnidirectional manner.

According to the embodiments of the present disclosure, in the radiation imaging system, the carrying component, the radiation source component and the detector component can move with multiple degrees of freedom by moving the components, so that the relative positional relationship of the three can be easily adjusted, so that the scanning method is more flexible , more adaptable.

Further, the moving assembly includes: a first stage, the first stage is disposed on the lower side of the carrying assembly, and the upper surface of the first stage is provided with an extension along the axial direction of the workpiece the first guide rail, the bearing assembly is slidably connected to the first guide rail; the second stage, the second stage is fixedly connected to the lower side of the ray source assembly, and the upper surface of the second stage the ray source assembly is fixed; and a third stage, the third stage is arranged on the lower side of the detector assembly, and a carrier assembly is arranged between the third stage and the detector assembly, The carrier assembly drives the detector assembly to move along the radial direction or the axial direction of the workpiece.

Further, the bearing assembly includes: a supporting device, the supporting device is slidably disposed on the first guide rail to assist in supporting the workpiece; and at least two clamping devices, the at least two clamping devices The devices are respectively arranged on both sides of the support device and slidably arranged on the first guide rail to adapt to the clamping position of the workpiece.

Further, the support device includes: a first support base, which is slidably arranged on the first guide rail; and a support bracket, which is arranged on the first support base, and is fixedly connected with the first support base, wherein the support bracket can approach or move away from the workpiece in the radial direction of the workpiece.

Further, the clamping device comprises: a clamping ring; a second support base, the second support base is slidably arranged on the first guide rail; and a plurality of rollers, the plurality of rollers are arranged on the Between the clamping ring and the second support base, a plurality of the rollers are arranged parallel to the first guide rail and the spacing is adjustable to adapt to the size of the clamping ring.

Further, a rack is also provided on the first stage, and the rack is parallel to the first guide rail.

Further, a gear is provided on the second support base, the gear meshes with the rack, and driven by the gear, the second support base moves in the axial direction of the workpiece.

Further, the first guide rail is configured as a protrusion, and the supporting device and the clamping device are provided with grooves matched with the first guide rail.

Further, the carrier assembly includes: a radial translation member and an axial translation member, one of the radial translation member and the axial translation member is fixedly connected with the third carrier, and the radial translation member The other one of the axial translation member and the axial translation member is fixedly connected with the detector assembly, wherein the radial translation member and the axial translation member are slidably connected.

Further, the radial translation member includes: a first tray, the first tray is fixedly connected with the detector assembly; and a second guide rail, the second guide rail is arranged on the lower surface of the first tray, and is slidably connected with the axial translation member, the second guide rail is perpendicular to the first guide rail, so that the detector assembly moves along the radial direction of the workpiece.

Further, the axial translation member includes: a second tray, the upper surface of which is slidably connected to the second guide rail; and a third guide rail, the third guide rail is arranged on the third stage The third guide rail is parallel to the first guide rail to make the detector assembly move along the axial direction of the workpiece.

Further, the second carrier further includes: a first lifting frame, one end of the first lifting frame is fixedly connected to the bottom of the second carrier, and the other end of the first lifting frame is connected to the first lifting frame. The upper surfaces of the two stages are fixedly connected, and the first lifting frame can be selectively extended and retracted, so that the radiation source assembly can be raised or lowered.

Further, the third platform further includes: a second lifting frame, one end of the second lifting frame is fixedly connected to the bottom of the third loading platform, and the other end of the second lifting frame is connected to the first lifting frame. The upper surfaces of the three stages are fixedly connected, and the second lifting frame can be selectively extended and retracted so that the detector assembly can be raised or lowered.

Further, the moving assembly is configured as an AGV vehicle.

Additional aspects and advantages of embodiments of the present disclosure will be set forth, in part, in the following description, and in part will be apparent from the following description, or learned by practice of embodiments of the present disclosure.

Description of drawings

Other objects and advantages of the present disclosure will become apparent from the following description of the present disclosure with reference to the accompanying drawings, and may assist in a comprehensive understanding of the present disclosure.

1 is a schematic structural diagram of a bearing assembly according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a ray source assembly according to an embodiment of the present disclosure;

3 is a schematic structural diagram of a detector assembly according to an embodiment of the present disclosure;

4 is a schematic structural diagram of a radiation imaging system in an initial state according to an embodiment of the present disclosure;

5 is a schematic structural diagram of a radiation imaging system in a working state according to an embodiment of the present disclosure;

It should be noted that, in the drawings for describing the embodiments of the present disclosure, the dimensions of structures or regions may be exaggerated or reduced for clarity, ie, the drawings are not drawn to actual scale.

Reference number:

Radiation Imaging System 1000,

carrier assembly 100,

The supporting device 110, the first supporting base 111, the supporting bracket 112,

The clamping device 120, the clamping ring 121, the second supporting base 122,

ray source assembly 200,

detector assembly 300,

The first tray 311, the second guide rail 312,

The second tray 321, the third guide rail 322,

mobile assembly 400,

The first stage 410, the first guide rail 411, the rack 412,

The second stage 420, the first lifting frame 421,

The third stage 430, the second lifting frame 431,

Workpiece 500.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.

Unless otherwise defined, technical or scientific terms used in the present disclosure should have the ordinary meaning as understood by one of ordinary skill in the art. As used in this disclosure, "first," "second," and similar terms do not denote any order, quantity, or importance, but are merely used to distinguish the various components. "Comprises" or "comprising" and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not exclude other elements or things.

In this document, unless specifically stated otherwise, directional terms such as "upper," "lower," "left," "right," "inner," "outer," and the like are used to denote an orientation or position based on what is shown in the drawings. Relationships are provided for convenience in describing the present disclosure only and are not intended to indicate or imply that the referred device, element or component must have a particular orientation, be constructed or operate in a particular orientation. It should be understood that, when the absolute positions of the described objects change, the relative positional relationship they represent may also change accordingly. Therefore, these directional terms should not be construed as limiting the present disclosure.

The radiation imaging system is a ray beam emitted by a ray source, collimated and has a certain energy passing through the object to be inspected. According to the different attenuation coefficients of each volume element in each transmission direction, the projected energy received by the detector is also different. After a series of signal conversions, a scanned image is obtained.

The existing radiation imaging systems are placed vertically, which requires the workpiece to be installed vertically on a vertical turntable, and the radiation sources and detectors on both sides are fixed on the ground for use. When transported to a designated location for inspection, the radiation imaging system cannot adapt to the needs of the conversion site. However, the workpieces generally have the characteristics of large size, heavy weight, special structure, and high cost, which may cause damage during the round-trip transportation.

Therefore, the embodiments of the present disclosure provide a radiation imaging system that can be used for workpiece defect detection, which can be moved to different scenarios according to requirements, and is suitable for application requirements of multi-location mobility.

It should be noted that the embodiments of the present disclosure are applicable to application scenarios such as CT scan (electronic computed tomography), DR scan (digital X-ray scan), and the types of scans are not limited herein.

For example, in CT scanning, a ray beam with a certain energy emitted by a ray source and collimated passes through the inspected object. According to the different attenuation coefficients of each volume element in each transmission direction, the projected energy received by the detector Also different, after a series of signal conversions, a scanned image is obtained.

For example, in DR scanning, CCD imaging is used, which is directly irradiated with x-rays and then imaged to obtain an overlapping image of the object passed by the x-rays in the direction of illumination.

The workpiece in the embodiment of the present disclosure may be a device to be inspected in various fields, such as an arrow body in the aerospace field, or a pipeline in the field of pipeline devices. The workpiece is specifically a cylindrical or nearly cylindrical structure. It can be understood that the method in the present technology can also be used for workpieces with other contour structures, such as a cube structure, a pyramid structure, and the like.

A radiation imaging system 1000 for a workpiece 500 according to an embodiment of the present disclosure is described below with reference to FIGS. 1-5 .

According to some exemplary embodiments of the present disclosure, a radiation imaging system 1000 for a workpiece includes a carrier assembly 100 , a radiation source assembly 200 , a detector assembly 300 , and a moving assembly 400 .

The radiation source assembly 200 is used to generate high-energy X-rays, and includes an X-ray handpiece, a solid-state modulator, a water chiller, a control unit, and the like. Among them, the X-ray handpiece is the core component, which generates X-rays through the excitation of the solid-state modulator, has the characteristics of high dose rate, small focus, and high stability, and can be used to detect the workpiece 500 .

The detector assembly 300 is used for receiving X-rays and converting them into digital signals, including: a flat panel detector, power supply, cables, detector shielding devices, etc. The flat panel detector has the characteristics of large imaging area, high dynamic range, and portability.

The carrier assembly 100 is used for carrying the workpiece 500 to be inspected. For example, in a radiation imaging process, the radiation source assembly 200 emits X-rays, and after the X-rays pass through the workpiece 500 to be inspected, the detector assembly 300 converts them into digital signals and transmits them to a computer.

The moving assembly 400 can drive the carrying assembly 100 , the radiation source assembly 200 and the detector assembly 300 to move, and adjust the distance and position between the three, so as to facilitate the omnidirectional inspection of the workpiece 500 .

Specifically, the ray source assembly 200 and the detector assembly 300 are respectively disposed on both sides of the carrying assembly 100, the ray source assembly 200 is used for emitting rays, and the detector assembly 300 is used for receiving rays; the moving assembly 400 is disposed on the ray source assembly 200, On the lower side of the detector assembly 300 and the carrier assembly 100 , the moving assembly 400 drives the radiation source assembly 200 , the detector assembly 300 and the carrier assembly 100 to move in all directions.

In the embodiment of the present disclosure, in order to make the radiation imaging system 1000 suitable for various venues and facilitate transportation and transition, a moving assembly 400 is installed on the lower side of the radiation source assembly 200 , the detector assembly 300 and the carrier assembly 100 . The moving assembly 400 The ray source assembly 200 and the detector assembly 300 are driven close to or away from the carrier assembly 100; in addition, since the ray source assembly 200 and the detector assembly 300 can move in the horizontal direction, the workpiece 500 can be changed to be horizontally placed on the carrier assembly 100 , the ray source assembly 200 and the detector assembly 300 are on both sides of the carrier assembly 100, and only by moving the ray source assembly 200 and the detector assembly 300 along the axis of the workpiece 500 to detect each section of the workpiece 500, or, because the carrier assembly 100 can After moving in the horizontal direction, the workpiece 500 can also be changed to be placed on the carrier assembly 100 horizontally, and each section of the workpiece 500 can be detected only by the movement of the carrier assembly 100 between the radiation source assembly 200 and the detector assembly 300 .

The radiation source assembly 200 , the detector assembly 300 and the carrying assembly 100 can all be moved, so that the adjustment freedom during the detection process is higher, and it is easier to adapt to different sites.

It should be noted that the mobile component 400 has the function of omnidirectional movement. Omnidirectional movement means that the mobile component 400 can move in multiple different directions. Rotation, curve motion, etc., can also be moved in the combination of the above-mentioned moving methods.

The workpiece 500 is generally long in length. After the vertical type is changed to the horizontal type, the height of the overall center of gravity is reduced, which improves the safety during the security inspection. At the same time, in the related art, in order to accommodate the erected workpiece 500, the workshop needs to be high enough After the space is changed to a horizontal type in the embodiment of the present disclosure, the height requirement is low, and the construction cost is reduced.

According to the radiation imaging system 1000 of the embodiment of the present disclosure, the carrier assembly 100 , the radiation source assembly 200 and the detector assembly 300 can move with multiple degrees of freedom through the moving assembly 400 , which facilitates adjustment of the relative positional relationship of the three, so that the scanning mode More flexible and adaptable.

According to some exemplary embodiments of the embodiments of the present disclosure, the moving assembly 400 includes: a first stage 410 , a second stage 420 and a third stage 430 .

The moving assembly 400 can be subdivided into a first stage 410 , a second stage 420 and a third stage 430 . Since the bearing objects of the first carrier 410 , the second carrier 420 and the third carrier 430 are different, the specific structures of the three are different.

The first carrier 410 is disposed on the lower side of the carrier assembly 100 , the upper surface of the first carrier 410 is provided with a first guide rail 411 extending along the axial direction of the workpiece 500 , and the carrier assembly 100 is slidably connected with the first guide rail 411 .

Specifically, as shown in FIG. 1 , there are first guide rails 411 penetrating the first stage 410 in the longitudinal direction of the first stage 410 , and two first guide rails 411 are provided at intervals in the width direction of the first stage 410 , Both ends of the carrier assembly 100 are mounted on the two first guide rails 411 and can slide on the first guide rails 411 .

In some exemplary embodiments, stoppers are provided at both ends of the first guide rail 411 to prevent the carrier assembly 100 from slipping off the first carrier 410 during the sliding process of the first guide rail 411 .

The second stage 420 is fixedly connected to the lower side of the radiation source assembly 200 , and the radiation source assembly 200 is fixed on the upper surface of the second stage 420 .

As shown in FIG. 2 , the radiation source assembly 200 is fixedly connected to the upper surface of the second stage 420 .

The third carrier 430 is disposed on the lower side of the detector assembly 300 , a carrier assembly is disposed between the third carrier 430 and the detector assembly 300 , and the carrier assembly drives the detector assembly 300 in the radial or axial direction of the workpiece 500 sports.

As shown in FIG. 3 , the carrier assembly is fixed on the upper surface of the third stage 430 , the detector assembly 300 is fixed on the upper surface of the carrier assembly, and part of the carrier assembly can move relative to the third stage 430 , when the carrier assembly moves , which can drive the detector assembly 300 fixed above it to move.

In some exemplary embodiments, the carrier assembly can move the detector assembly 300 in the radial direction of the workpiece 500 , and then move closer to or away from the workpiece 500 , and can cooperate with the third carrier 430 to align the detector assembly 300 with the workpiece 500 . The relative position spacing is fine-tuned.

In other exemplary embodiments, the carrier assembly can make the detector assembly 300 move along the axial direction of the workpiece 500 , and can cooperate with the third stage 430 to precisely fine-tune a specific detection position on the workpiece 500 .

According to some exemplary embodiments of the embodiments of the present disclosure, the carrier assembly 100 includes: a supporting device 110 and a clamping device 120 .

In the embodiment of the present disclosure, by setting the support device, the workpiece 500 is first hoisted to the support device for positioning and placement, and then the clamping device 120 is controlled to be fitted to both ends of the workpiece 500 to clamp the workpiece 500, and the operation is simple and convenient. In addition, due to the arrangement of the support device, the workpiece 500 is stably supported, and the accuracy of the position of the workpiece 500 is ensured, which facilitates the rapid insertion of the clamping device 120 and improves the installation efficiency of the workpiece 500 .

Control the supporting device to ascend or descend a first distance, the first distance is the length of the vertical line segment from the central axis of the workpiece 500 to the central axis of the clamping device 120; by controlling the supporting device to ascend or descend the first distance, the workpiece 500 and the clamping device are realized The center of the holding device 120 is collinear or substantially collinear, which is achieved by controlling the first distance of ascending or descending to be the length of the vertical line segment from the center axis of the workpiece 500 to the center axis of the holding device 120 . As described above, the shape of the workpiece 500 in this embodiment is a cylinder, and the clamping body of the clamping device 120 is annular. By measuring the distance between the central axes of the two, the distance is set as the above-mentioned distance the first distance in . After controlling the support device to ascend or descend the first distance, the distance value between the two central axes can also be detected again to ensure the accuracy of the operation.

It should be noted that the size and minimum distance between the supporting device 110 and the clamping device 120 meet the position and distance requirements of the support point of the workpiece 500 , and there will be no interference between the supporting device 110 and the clamping device 120 .

In some exemplary embodiments, a soft limit or hard limit protection is provided between the adjacent supporting devices 110 and the clamping device 120 to prevent collision during sliding.

The supporting device 110 is slidably arranged on the first guide rail 411 to assist in supporting the workpiece 500; a plurality of clamping devices 120 are provided, and the plurality of clamping devices 120 are respectively arranged on both sides of the supporting device 110 and are slidably arranged on the workpiece 500. on the first guide rail 411 to adapt to the clamping position of the workpiece 500 .

The workpiece 500 has a wide range of lengths, and its position needs to be adjusted to hold the workpiece 500 with the support device 110 and the clamping device 120 . In this application, the first guide rail 411 is installed below the support device 110 and the clamping device 120 , so that both the support device 110 and the clamping device 120 can slide on the first guide rail 411 , and the support device can be adjusted according to the length of the workpiece 500 to be tested. The positions of 110 and the clamping device 120 cooperate to complete the lifting and clamping of the workpiece 500 .

In some exemplary embodiments, as shown in FIG. 1 , there are two supporting devices 110 and two clamping devices 120 , and the two supporting devices 110 are between the two clamping devices 120 . First, adjust the positions of the two supporting devices 110 and the two clamping devices 120 according to the length of the workpiece 500 to be tested, and then start the supporting device 110. When the supporting device 110 is lifted to coincide with the center line of the clamping device 120, the The clamping device 120 moves to both ends of the workpiece 500 to clamp the workpiece 500 .

According to some exemplary embodiments of the embodiments of the present disclosure, the support device 110 includes: a first support base 111 and a support bracket 112 .

The support bracket 112 is configured in an arc shape and fits with the outer surface of the workpiece 500 . The support bracket 112 can be replaced according to the diameter of the workpiece 500 without disassembling the first support base 111 for use with the clamping piece.

Exemplarily, the first support base 111 and the support bracket 112 are detachably connected, and through this arrangement, the first support base 111 and the support bracket 112 can be flexibly adapted. Specifically, the first support base 111 and the support bracket 112 may be matched one-to-one, or may be matched one-to-many or many-to-many, so as to adapt to different application scenarios. For example, the sizes of the sockets of different support brackets 112 can be set to be different. When supporting workpieces 500 of different sizes, the same first support base 111 is retained, and only the support brackets with different socket sizes are replaced. The rack 112 is sufficient. In addition, when one of the first support base 111 and the support bracket 112 is damaged, only the damaged one can be replaced, which is more economical.

The first support base 111 is slidably arranged on the first guide rail 411 ; the support bracket 112 is arranged on the first support base 111 and is fixedly connected with the first support base 111 , wherein the support bracket 112 can be positioned at the diameter of the workpiece 500 . Approach or move away from the workpiece 500 in the direction.

The support bracket 112 is fixed with the first support base 111 , and the first support base 111 drives the support bracket 112 to rise or fall. When the first support base 111 drives the support bracket 112 to rise, the support bracket 112 is close to the workpiece 500 . When a support base 111 drives the support bracket 112 to descend, the support bracket 112 moves away from the workpiece 500 .

In some exemplary embodiments, a motor is installed in the first support base 111, and the motor controls the height of the support bracket 112. In the case of multiple support devices 110, the motor controls the first support base 111 to move up and down synchronously. When the stroke is the same, the acting force on the workpiece 500 is the same or similar, so as to avoid the sudden drop of the workpiece 500 when the clamping device 120 is released.

According to some exemplary embodiments of the embodiments of the present disclosure, the clamping device 120 includes: a clamping ring 121 , a second support base 122 and a plurality of rollers.

The clamping ring 121 is used for clamping the workpiece 500. Under the action of the clamping ring 121, the workpiece 500 can rotate around the axis. The clamping ring 121 is composed of an upper half ring and a lower half ring, and is fixed by a fixing member.

The clamping ring 121 adopts an adaptive clamping method to realize fast and safe automatic installation of the workpiece 500. The operation of the clamping process is simple and convenient. For the workpiece 500 with different diameters, the clamping ring 121 with different diameters is used, and there is no need to replace the second support base 122.

In the present application, the clamping ring 121 has multiple models, which can be understood as having multiple diameters, and the clamping ring 121 can be replaced according to the diameter of the workpiece 500 .

The second support base 122 is slidably arranged on the first guide rail 411; the rollers are arranged between the clamping ring 121 and the second support base 122, the plurality of rollers are arranged parallel to the first guide rail 411, and the plurality of rollers The distance between them is adjustable to suit the size of the clamping ring 121 .

Through the adjustment of the distance, the roller has the function of adapting to multiple types of clamping rings 121 , and also has the function of making the workpiece 500 close to or away from the detector assembly 300 .

The multiple rollers are arranged parallel to the first guide rail 411. By adjusting the spacing between the multiple rollers, that is, the spacing of the multiple rollers is adjusted perpendicular to the direction of the first guide rail 411, the adjustment range should be able to adapt to different types of clamps Hold the ring 121.

A driving roller is provided among the plurality of rollers, the driving roller is arranged close to the detector assembly 300, and the driving roller is fixed. Other rollers are driven rollers, and the distance between the driven rollers can be adjusted. During the process of adjusting the spacing, the driven rollers approach the direction of the driving rollers, that is, approach the direction of the detector assembly 300 . Since the clamping ring 121 is disposed on the roller, after adjustment, the axis of the workpiece 500 on the clamping ring 121 is as close to the detector assembly 300 as possible.

According to some exemplary embodiments of the embodiments of the present disclosure, a rack 412 is further provided on the first stage 410 , and the rack 412 is parallel to the first guide rail 411 . The second support base 122 is provided with a gear, and the gear meshes with the rack. Driven by the gear, the second support base 122 can move in the length direction of the first stage 410 , that is, in the axial direction of the workpiece 500 . .

As shown in FIG. 1 , there is a rack 412 parallel to the first guide rail 411 on the upper surface of the first carrier 410 . The rack 412 penetrates the first carrier 410 and drives the second support through the cooperation of the gear and the rack 412 The base 122 and the first support base 111 move on the first stage 410 .

It should be noted that both the first support base 111 and the second support base 122 can be driven independently.

According to some exemplary embodiments of the embodiments of the present disclosure, the first guide rail 411 is configured as a protrusion, and the supporting device 110 and the clamping device 120 are provided with grooves matched with the first guide rail 411 .

The first guide rail 411 can be configured as a protrusion, and the grooves on the supporting device 110 and the clamping device 120 cooperate with the protrusions to limit the moving direction of the supporting device 110 and the clamping device 120, so as to avoid separation from the first guide rail during the rapid sliding process. Stage 410.

According to other exemplary embodiments of the embodiments of the present disclosure, the first guide rail 411 is configured as a groove, and the support device 110 and the clamping device 120 are provided with protrusions matched with the first guide rail 411 .

The first guide rail 411 can also be configured as a groove, and the protrusions on the supporting device 110 and the clamping device 120 cooperate with the grooves to limit the moving direction of the supporting device 110 and the clamping device 120, and avoid detachment from the first rail during the rapid sliding process. A stage 410 .

According to some exemplary embodiments of the present disclosure, a carrier assembly includes a radial translator and an axial translator.

The radial translation member can move the detector assembly 300 closer to or away from the workpiece 500 , and the axial translation member can move the detector assembly 300 along the axis of the workpiece 500 .

One of the radial translation member and the axial translation member is fixedly connected to the third stage 430, and the other of the radial translation member and the axial translation member is fixedly connected to the detector assembly 300, wherein the radial translation member and the axial translation member are fixedly connected to the detector assembly 300. The translation piece is slidingly connected.

The upper surfaces of the third stage 430 may be connected in the order of radial translation element, axial translation element, and detector assembly 300, or may be connected in sequence of axial translation element, radial translation element, and detector assembly 300.

As shown in FIG. 3 , the axial translation member is first fixed on the third stage 430 , the radial translation member is fixed above the axial translation member, and the detector assembly 300 is fixed above the radial translation member.

According to some exemplary embodiments of the present disclosure, the radial translation member includes: a first tray 311 and a second guide rail 312 .

The first tray 311 is fixedly connected with the detector assembly 300; the second guide rail 312 is arranged on the lower surface of the first tray 311 and is slidably connected with the axial translation member, and the second guide rail 312 is perpendicular to the first guide rail 411, so that the detector The assembly 300 moves in the radial direction of the workpiece 500 .

Generally, the first stage 410 and the second stage 420 are parallel to better grasp the distance during adjustment. The first tray 311 is disposed on the second guide rail 312 and the extending direction of the second guide rail 312 is perpendicular to the extending direction of the first guide rail 411 . The first tray 311 slides along the second guide rail 312 to make the detector assembly 300 move along the workpiece 500 . , that is, to move the detector assembly 300 closer to or away from the workpiece 500 .

According to some exemplary embodiments of the embodiments of the present disclosure, the axial translation member includes: a second tray 321 and a third guide rail 322 .

The upper surface of the second tray 321 is slidably connected to the second guide rail 312; the third guide rail 322 is disposed on the upper surface of the third stage 430 and is slidably connected to the lower surface of the second tray 321, and the third guide rail 322 is connected to the first guide rail 322. The guide rails 411 are parallel to move the probe assembly 300 in the axial direction of the workpiece 500 .

A second tray 321 is disposed on the third guide rail 322 , and the second tray 321 can slide relative to the third carrier 430 . The extending direction of the third guide rail 322 is the same as the extending direction of the first guide rail 411 . The sliding of the guide rail 322 causes the probe assembly 300 to move in the axial direction of the workpiece 500 .

A second guide rail 312 is provided on the upper surface of the second tray 321 , and the first tray 311 can slide relative to the second tray 321 , that is, when the first tray 311 approaches or moves away from the workpiece 500 , the second tray 321 can slide Move along the axis of the workpiece 500 .

The edges of the first pallet 311 and the second pallet 321 are equipped with safety edges, which can prevent the detector assembly 300 from being damaged after colliding with the workpiece 500 or the clamping ring 121 when extending.

According to some exemplary embodiments of the embodiments of the present disclosure, the second carrier 420 further includes: a first lifting frame 421 , one end of the first lifting frame 421 is fixedly connected with the bottom of the second carrier 420 , and the first lifting frame The other end of the 421 is fixedly connected to the upper surface of the second stage 420, and the first lifting frame 421 can be selectively extended and retracted, so that the radiation source assembly 200 can be raised or lowered.

According to some exemplary embodiments of the embodiments of the present disclosure, the third stage 430 further includes: a second lifting frame 422, one end of the second lifting frame 422 is fixedly connected with the bottom of the third stage 430, and the second lifting frame The other end of the 422 is fixedly connected with the upper surface of the third stage 430, and the second lifting frame 422 can be selectively extended and retracted, so that the detector assembly 300 can be raised or lowered.

During the inspection process, it is necessary to obtain enough two-dimensional tomographic images of the inspected workpiece to reconstruct three-dimensional images, and to obtain enough two-dimensional tomographic images, the ray source assembly 200 and the detector assembly 300 need to perform synchronous lifting and lowering motions. As shown in FIGS. 4 and 5 , FIG. 4 is the initial state of the radiation imaging system 1000 after the installation of the finished product 500 , and FIG. 5 is the working state of the radiation imaging system 1000 . The radiation is adjusted by the first lifting frame 421 and the second lifting frame 422 The heights of the source assembly 200 and the detector assembly 300 are suitable for the detection of workpieces 500 with different diameters.

Both the first lifting frame 421 and the second lifting frame 422 have a storage function. The first lifting frame 421 can be housed in the second carrier 420 , the second lifting frame 422 can be housed in the third carrier 430 . The second stage 420 and the third stage 430 are small in size and easy to be used in transition.

According to some exemplary embodiments of the present disclosure, mobile assembly 400 is configured as an AGV vehicle.

The AGV vehicle has the characteristics of omnidirectional driving, which can realize forward and backward, left and right lateral movement, in-situ rotation, oblique driving, curve movement, etc.

In the description of this specification, reference to description of the terms "some exemplary embodiments", "some embodiments", "instances", "specific examples", or "some examples" etc. is intended to be described in conjunction with the embodiments or examples The specific features, structures, materials, or characteristics of the present disclosure are included in at least some of the illustrative embodiments or examples of embodiments of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although some embodiments according to the general technical concept of the present disclosure have been shown and described, those of ordinary skill in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general technical concept of the present disclosure, The scope of the present disclosure is defined by the claims and their equivalents.

Claims (14)

1. A radiation imaging system, characterized in that, comprising: A bearing assembly, used to carry the workpiece to be detected; a ray source assembly and a detector assembly, the ray source assembly and the detector assembly are respectively disposed on two sides of the bearing assembly, the ray source assembly is used for emitting rays, and the detector assembly is used for receiving rays; as well as A moving assembly, wherein the moving assembly is arranged on the lower side of the ray source assembly, the detector assembly and the carrying assembly, and the moving assembly is used to drive the ray source assembly, the detector assembly and the The carrier assembly moves omnidirectionally. 2. The radiation imaging system of claim 1, wherein the moving assembly comprises: a first carrier, the first carrier is arranged on the lower side of the carrier assembly, the upper surface of the first carrier is provided with a first guide rail extending along the axial direction of the workpiece, the carrier element slidingly connected with the first guide rail; a second stage, the second stage is fixedly connected to the lower side of the radiation source assembly, and the radiation source assembly is fixed on the upper surface of the second stage; and A third carrier, the third carrier is disposed on the lower side of the detector assembly, a carrier assembly is disposed between the third carrier and the detector assembly, and the carrier assembly drives the detector The assembly moves in a radial or axial direction of the workpiece. 3. The radiation imaging system of claim 2, wherein the carrier assembly comprises: a support device slidably disposed on the first guide rail to assist in supporting the workpiece; and At least two clamping devices are respectively disposed on two sides of the support device and slidably disposed on the first guide rail to adapt to the clamping position of the workpiece. 4. The radiation imaging system of claim 3, wherein the support device comprises: a first support base, the first support base is slidably disposed on the first guide rail; and a support bracket, the support bracket is arranged on the first support base and is fixedly connected with the first support base, Wherein, the support bracket can approach or move away from the workpiece in the radial direction of the workpiece. 5. The radiation imaging system of claim 3, wherein the clamping device comprises: clamping ring; a second support base slidably disposed on the first guide rail; and a plurality of rollers, the plurality of rollers are arranged between the clamping ring and the second support base, the plurality of the rollers are arranged parallel to the first guide rail and the spacing is adjustable to adapt to the The size of the clamping ring. 6 . The radiation imaging system according to claim 5 , wherein a rack is further provided on the first stage, and the rack is parallel to the first guide rail. 7 . 7 . The radiation imaging system according to claim 6 , wherein a gear is provided on the second support base, the gear is engaged with the rack, and driven by the gear, the second The support base moves in the axial direction of the workpiece. 8 . The radiation imaging system according to claim 3 , wherein the first guide rail is configured as a protrusion, and the supporting device and the clamping device are provided with grooves matched with the first guide rail. 9 . 9. The radiation imaging system of claim 2, wherein the carrier assembly comprises a radial translation member and an axial translation member, one of the radial translation member and the axial translation member being associated with the third stage is fixedly connected, and the other one of the radial translation member and the axial translation member is fixedly connected to the detector assembly, Wherein, the radial translation member and the axial translation member are slidably connected. 10. The radiation imaging system of claim 9, wherein the radial translation member comprises: a first tray fixedly connected to the detector assembly; and A second guide rail, the second guide rail is disposed on the lower surface of the first tray and is slidably connected with the axial translation member, the second guide rail is perpendicular to the first guide rail, so that the detector The assembly moves in a radial direction of the workpiece. 11. The radiation imaging system of claim 10, wherein the axial translation member comprises: a second tray, the upper surface of which is slidably connected to the second guide rail; and A third guide rail, the third guide rail is arranged on the upper surface of the third carrier and is slidably connected with the lower surface of the second tray, and the third guide rail is parallel to the first guide rail, so that the The probe assembly moves in the axial direction of the workpiece. 12 . The radiation imaging system according to claim 2 , wherein the second stage further comprises: a first lifting frame, and one end of the first lifting frame is fixedly connected to the bottom of the second stage. 13 . , the other end of the first lifting frame is fixedly connected with the upper surface of the second stage, and the first lifting frame can be selectively extended and retracted to make the radiation source assembly rise or fall. 13 . The radiation imaging system according to claim 2 , wherein the third stage further comprises: a second lifting frame, and one end of the second lifting frame is fixedly connected to the bottom of the third stage. 14 . , the other end of the second lifting frame is fixedly connected with the upper surface of the third stage, and the second lifting frame can be selectively extended and retracted to make the detector assembly rise or fall. 14. The radiation imaging system of any one of claims 1-13, wherein the mobile assembly is configured as an AGV vehicle.

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