An X-ray based detection device

Abstract

The present invention relates to the technical field of detection equipment, and in particular to an X-ray-based detection equipment, comprising a turntable for supporting, two support plates relatively mounted on the turntable, a rotating column rotatably mounted on each support plate, a clamping plate mounted on each rotating column and an intermittent mechanism, wherein the turntable rotates around its axis, the two support plates are both offset from the axis of the turntable, and the clamping plates on the two support plates are used to clamp objects; the material is conveyed in a rotating manner by adopting a turntable and utilizing the rotation of the turntable, and the object can be detected during the conveying, and the detection method can detect objects at different angles, thereby realizing comprehensive detection of the object, and enabling the equipment to be seamlessly connected with an automated production line, thereby improving detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to a detection equipment based on X-rays. Background Art

[0002] In modern manufacturing, ensuring product quality and reliability is crucial. With the advancement of technology and the intensification of market competition, people are increasingly relying on advanced detection technologies and equipment to achieve this goal. Among them, X-ray detection technology has become one of the preferred solutions in many industries due to its non-destructive testing capabilities.

[0003] X-rays are a type of high-energy radiation in the electromagnetic spectrum that can penetrate most substances and are absorbed to varying degrees by different materials. When X-rays pass through an object, their intensity varies depending on the object's internal structure. This variation can be captured by detectors and converted into images. By analyzing these images, engineers and technicians can inspect the internal structure of an object without physically destroying it.

[0004] When using existing X-ray detection equipment, the object needs to be placed between the X-ray generator and the receiver. The X-rays emitted by the generator pass through the object and are projected onto the receiver to achieve detection. The object angle is then adjusted and detection is performed again. This process is repeated to achieve multi-angle detection of the object. However, this detection method can only achieve static detection, that is, the object cannot move and the object angle needs to be adjusted frequently. It is not suitable for continuous assembly line operations in workshops. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an X-ray based detection device, the specific technical solution adopted by the present invention is:

[0006] An X-ray based detection device comprises a turntable for supporting, two support plates relatively mounted on the turntable, a rotating column rotatably mounted on each support plate, a clamping plate mounted on each rotating column and an intermittent mechanism, the turntable rotates around its axis, the two support plates are deviated from the axis of the turntable, the clamping plates on the two support plates are used to clamp an object, an X-ray generator and an X-ray receiver are arranged between the two clamping plates, and the X-ray generator and the X-ray receiver are used to detect the object;

[0007] Wherein, the intermittent mechanism is used to provide intermittent power for a rotating column.

[0008] Further, the intermittent mechanism includes a first semicircular plate located outside the rotating disk, and a plurality of step grooves are formed on the first semicircular plate. The step grooves are in a stepped shape, and the step grooves are composed of a plurality of horizontal parts and inclined parts arranged in sequence, and the upper and lower ends of the step grooves both penetrate the first semicircular plate;

[0009] A fixed plate is rolled on the turntable, and two first transmission wheels are rotatably arranged on the fixed plate. The two first transmission wheels are driven by a first transmission belt, and the first transmission belt is vertical. The first transmission belt is provided with a plurality of sliding columns that can slide in the step groove. A second transmission wheel is driven on one of the first transmission wheels, and the second transmission wheel and a rotating column are driven by a second transmission belt.

[0010] Furthermore, a second semicircular plate is disposed on the first semicircular plate, the first semicircular plate and the second semicircular plate form a complete circle, an arc-shaped groove is provided on the second semicircular plate, one end of the arc-shaped groove is connected to a stepped groove at one end of the first semicircular plate, and an inclined groove is provided at the other end of the arc-shaped groove, and the inclined groove is close to a stepped groove at the other end of the first semicircular plate;

[0011] The arc groove is coaxial with the first semicircular plate.

[0012] Furthermore, a plurality of first cylinders roll on the turntable, an isolation cover is connected to the extended ends of the plurality of first cylinders, the X-ray generator and the X-ray receiver are relatively fixed on the inner wall of the isolation cover, and two notches for use with two support plates are opened on the front side wall of the isolation cover.

[0013] Furthermore, one support plate on the turntable is fixedly connected to the turntable, and a slider is provided on the other support plate. The slider is slidably mounted on the turntable, and the slider is connected to the turntable via a second cylinder.

[0014] Furthermore, a plurality of suction holes are provided on the working surface of the clamping plate, a negative pressure cavity is provided inside the clamping plate, and the negative pressure cavity is communicated with the suction holes.

[0015] Furthermore, a hollow shaft is vertically inserted in the middle of the turntable, and the turntable rotates on the hollow shaft. The interior of the hollow shaft is hollow, and a three-way pipe and a negative pressure pipe are connected to the hollow shaft. The negative pressure pipe is used to extract the air in the hollow shaft and form a negative pressure inside the negative pressure pipe. The two output ends of the three-way pipe are respectively rotatably connected to the two rotating columns, and the output end of the three-way pipe is connected to the negative pressure cavity in the clamping plate;

[0016] Among them, the three-way pipe rotates on the hollow shaft.

[0017] Furthermore, a base is fixed at the bottom of the hollow shaft, and the base is connected to the first semicircular plate through multiple side plates. A transmission ring is arranged at the bottom of the turntable, and the transmission ring is sleeved on the outside of the hollow shaft. A motor and a third transmission wheel for providing power to the transmission ring are arranged on the base.

[0018] The advantages of the present invention are:

[0019] By adopting a turntable and utilizing the rotation of the turntable to realize the rotational conveying of materials, the objects can be inspected during conveying, and the detection method can detect objects at different angles, thereby realizing comprehensive detection of the objects, and enabling the equipment to be seamlessly connected with the automated production line, thereby improving the detection efficiency; by utilizing an intermittent mechanism to make the objects rotate intermittently while being conveyed, the objects can be inspected from multiple angles, thereby improving the continuity of the detection method, and avoiding the inconvenience and time loss caused by the need to manually or automatically reposition the objects in the traditional method; by enabling the objects to be inspected while being conveyed, this not only improves the detection speed, but also reduces the downtime, thereby further improving the overall efficiency of the production line; in summary, this technical solution significantly improves the efficiency and flexibility of X-ray detection, and is very suitable for the needs of high-speed and high-quality detection in modern manufacturing environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 yes Figure 1 Schematic diagram of explosion structure;

[0023] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of the middle turntable;

[0024] Figure 4 yes Figure 3 A schematic diagram of the structure from another perspective;

[0025] Figure 5 yes Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0026] Figure 6 yes Figure 2 A schematic diagram of the enlarged structure of the first semicircular plate;

[0027] Figure 7 yes Figure 2 A schematic diagram of the enlarged cross-sectional structure of the middle isolation cover;

[0028] Markings in the accompanying drawings:

[0029] 1. Turntable; 2. Support plate; 3. Rotating column; 4. Clamp; 5. X-ray generator; 6. X-ray receiver; 7. First semicircular plate; 8. Step groove; 9. Fixed plate; 10. First transmission wheel; 11. First transmission belt; 12. Sliding column; 13. Second transmission wheel; 14. Second transmission belt; 15. Second semicircular plate; 16. Arc groove; 17. Oblique groove; 18. Bevel; 19. Isolation cover; 20. First cylinder; 21. Notch; 22. Sliding block; 23. Second cylinder; 24. Suction hole; 25. Hollow shaft; 26. Three-way pipe; 27. Negative pressure pipe; 28. Base; 29. ​​Side plate; 30. Transmission ring; 31. Motor; 32. Third transmission wheel. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0033] like Figures 1 to 7 As shown, an X-ray based detection device of the present invention comprises a turntable 1 for supporting, two support plates 2 relatively mounted on the turntable 1, a rotating column 3 rotatably mounted on each support plate 2, a clamping plate 4 mounted on each rotating column 3 and an intermittent mechanism, the turntable 1 rotates around its axis, the two support plates 2 are both offset from the axis of the turntable 1, the clamping plates 4 on the two support plates 2 are used to clamp an object, an X-ray generator 5 and an X-ray receiver 6 are arranged between the two clamping plates 4, and the X-ray generator 5 and the X-ray receiver 6 are used to detect the object;

[0034] The intermittent mechanism is used to provide intermittent power to a rotating column 3 .

[0035] In detail, the turntable 1 provides support for the support plate 2, the rotating column 3, the clamping plate 4, the X-ray generator 5 and the X-ray receiver 6, and because the turntable 1 rotates, it can receive the object from the loading position and discharge the object at the unloading position, thereby facilitating the use of the detection equipment in conjunction with the workshop automated production line to achieve a continuous detection working mode. The two support plates 2 are both offset from the turntable 1, and the rotating column 3 is used to support the clamping plate 4. Since the intermittent mechanism provides intermittent power for a rotating column 3, the rotating column 3 and the object thereon can be intermittently rotated, that is, the object stops moving after rotating a specified angle, and then rotates a specified angle again, and repeats this process. The X-ray generator 5 and the X-ray receiver 6 are located between the two clamping plates 4, and the line connecting the X-ray generator 5 and the X-ray receiver 6 is perpendicular to the line connecting the two clamping plates 4, so that the X-rays emitted by the X-ray generator 5 can pass through the objects clamped on the two clamping plates 4 and be projected onto the X-ray receiver 6, thereby achieving X-ray detection of the object.

[0036] In actual use, the turntable 1 is arranged on the automated production line of the workshop, and the objects can be moved to the turntable 1 or removed from the turntable 1 by using structures such as a mechanical arm and a gripper. The turntable 1 rotates and drives the support plate 2, the rotating column 3, the clamping plate 4, the X-ray generator 5 and the X-ray receiver 6 thereon to perform synchronous circular motion. When the two clamping plates 4 move to the loading position, the object moves between the two clamping plates 4 and is clamped and fixed by the two clamping plates 4. Then the turntable 1 continues to rotate. During this process, the X-ray generator 5 and the X-ray receiver 6 perform X-ray detection on the object, and the intermittent mechanism drives the object to rotate intermittently, thereby using the X-ray generator 5 and the X-ray receiver 6 to detect objects at different angles, thereby realizing comprehensive detection of the object. The object is in a conveying state during detection, thereby realizing a dynamic detection method for the object. When the object detection is completed and moved to the unloading position, the two clamping plates 4 stop clamping the object, and the object is separated from the turntable 1. Then the turntable 1 continues to rotate to the loading position and detects the next object.

[0037] By adopting the turntable 1 and utilizing the rotation of the turntable 1 to realize the rotational conveying of the material, the object can be inspected during the conveying, and the detection method can detect objects at different angles, thereby realizing comprehensive detection of the object, and enabling the equipment to be seamlessly connected with the automated production line, thereby improving the detection efficiency; by utilizing the intermittent mechanism to make the object intermittently rotate while being conveyed, the object can be inspected from multiple angles, thereby improving the continuity of the detection method, and avoiding the inconvenience and time loss caused by the need to manually or automatically reposition the object in the traditional method; by realizing the detection of the object while it is being conveyed, this not only improves the detection speed, but also reduces the downtime, thereby further improving the overall efficiency of the production line; in summary, this technical solution significantly improves the efficiency and flexibility of X-ray detection, and is very suitable for the needs of high-speed and high-quality detection in modern manufacturing environments.

[0038] like Figure 3 and Figure 6 As shown, the intermittent mechanism includes a first semicircular plate 7 located outside the turntable 1, and a plurality of step grooves 8 are formed on the first semicircular plate 7. The step grooves 8 are in a stepped shape, and the step grooves 8 are composed of a plurality of horizontal parts and inclined parts arranged in sequence, and the upper and lower ends of the step grooves 8 both penetrate the first semicircular plate 7;

[0039] A fixed plate 9 is rolled on the turntable 1, and two first transmission wheels 10 are rotatably provided on the fixed plate 9. The two first transmission wheels 10 are transmitted through a first transmission belt 11. The first transmission belt 11 is vertical and provided with a plurality of sliding columns 12 that can slide in the step groove 8. A second transmission wheel 13 is transmitted on one of the first transmission wheels 10, and the second transmission wheel 13 and a rotating column 3 are transmitted through a second transmission belt 14.

[0040] In detail, the position of the first semicircular plate 7 is fixed, and the plurality of step grooves 8 are used to guide the plurality of slide posts 12. When the turntable 1 rotates, it can drive the structure on the fixed plate 9 to move synchronously through the fixed plate 9. When a slide post 12 on the first transmission belt 11 moves from the bottom of the step groove 8 into the step groove 8, the step groove 8 guides the slide post 12. When the slide post 12 moves in the inclined part of the step groove 8, the slide post 12 moves in the vertical direction while following the rotation of the turntable 1, so that the slide post 12 drives the first transmission belt 11 to rotate, and the first transmission belt 11 is rotated. The moving belt 11 drives the two first transmission wheels 10 to rotate synchronously, and the first transmission wheel 10 drives the clamping plate 4 and the object to rotate through the second transmission wheel 13 and the second transmission belt 14, so as to adjust the angle of the object. When the slide column 12 slides in the horizontal part of the step groove 8, the position of the slide column 12 in the vertical direction no longer changes. At this time, the object is stationary and in the X-ray detection state. When the slide column 12 continues to move and slides into the next inclined part on the step groove 8, the object rotates again, thereby realizing the adjustment of the object angle and the stationary work during object detection.

[0041] It should be pointed out that when the first transmission belt 11 moves to the area of ​​the first semicircular plate 7, there is at least one sliding post 12 on the first semicircular plate 7, that is, at least one sliding post 12 is in a step groove 8 on the first semicircular plate 7, and when the sliding post 12 is close to the end of the step groove 8, the next sliding post 12 slides into the adjacent step groove 8, thereby causing multiple sliding posts 12 to slide in different step grooves 8 as the turntable 1 rotates. Since the first transmission belt 11 is vertical, the sliding post 12 moves vertically on the first transmission belt 11, so the upper and lower ends of the step groove 8 need to pass through the first semicircular plate 7, so that the sliding post 12 can move smoothly in or out of the step groove 8.

[0042] like Figure 6 As shown, a second semicircular plate 15 is disposed on the first semicircular plate 7, and the first semicircular plate 7 and the second semicircular plate 15 form a complete circle. An arc groove 16 is provided on the second semicircular plate 15, and one end of the arc groove 16 is connected to a stepped groove 8 at one end of the first semicircular plate 7, and an inclined groove 17 is provided at the other end of the arc groove 16, and the inclined groove 17 is close to a stepped groove 8 at the other end of the first semicircular plate 7;

[0043] The arc groove 16 is coaxial with the first semicircular plate 7 .

[0044] In detail, when a slide post 12 on the first transmission belt 11 enters a stepped groove 8 at one end of the first semicircular plate 7, the slide post 12 will slide directly from the stepped groove 8 into the arc groove 16. At this time, since the vertical position of the arc groove 16 remains unchanged, the vertical position of the slide post 12 remains unchanged, that is, the first transmission belt 11 no longer rotates. As a result, when the two clamping plates 4 pass through the second semicircular plate 15 area, the two clamping plates 4 are in a stationary state on the turntable 1, which is convenient for loading and unloading, and for guiding and limiting the two clamping plates 4. When the slide post 12 in the arc groove 16 slides into the inclined groove 17, the next slide post 12 on the first transmission belt 11 slides into a stepped groove 8 at the other end of the first semicircular plate 7. As a result, when the multiple slide posts 12 on the first transmission belt 11 perform circular motion with the turntable 1, the multiple slide posts 12 can achieve smooth transition work at both ends of the first semicircular plate 7.

[0045] To prevent the next slide post 12 on the first transmission belt 11 from colliding with the end region of the first semicircular plate 7 when the slide post 12 enters the arc groove 16 from the stepped groove 8 , the end of the first semicircular plate 7 may be set at an oblique angle 18 .

[0046] like Figure 7 As shown, a plurality of first cylinders 20 are rolled on the turntable 1, and an isolation cover 19 is connected to the extended ends of the plurality of first cylinders 20. The X-ray generator 5 and the X-ray receiver 6 are relatively fixed on the inner wall of the isolation cover 19, and two notches 21 for use with the two support plates 2 are opened on the front side wall of the isolation cover 19.

[0047] In detail, the first cylinder 20 can push the isolation cover 19 to move up and down, thereby driving the X-ray generator 5 and the X-ray receiver 6 to move up and down. In this way, when loading and unloading objects, the isolation cover 19 can be lifted to provide space for the objects. When the object is fixed on the two clamping plates 4, the first cylinder 20 contracts and moves the isolation cover 19 down. The isolation cover 19 is buckled on the outside of the object and abuts against the turntable 1. At this time, the isolation cover 19 closes and blocks the object, so that the X-ray detection work is completed in a closed space to avoid the harm of the rays to the human body.

[0048] By providing two notches 21 , the two support plates 2 can be easily avoided, thereby ensuring that the isolation cover 19 can contact the turntable 1 .

[0049] like Figure 3 As shown, one support plate 2 on the turntable 1 is fixedly connected to the turntable 1 , and a slider 22 is provided on the other support plate 2 . The slider 22 is slidably mounted on the turntable 1 , and the slider 22 and the turntable 1 are connected via a second cylinder 23 .

[0050] In detail, the rotating column 3 on the fixed support plate 2 is connected to the second transmission wheel 13 through the second transmission belt 14. The second cylinder 23 can push the other support plate 2 to move by pushing the slider 22 to move, so that the distance between the two clamping plates 4 can be controlled. When the object moves between the two clamping plates 4, the two clamping plates 4 approach each other and clamp and fix the object.

[0051] A plurality of suction holes 24 are provided on the working surface of the clamping plate 4 , and a negative pressure cavity is provided inside the clamping plate 4 , which is communicated with the suction holes 24 .

[0052] In detail, when the two clamping plates 4 clamp an object, the negative pressure chamber can adsorb and fix the object through the suction holes 24, thereby improving the fixing strength of the object.

[0053] like Figures 2 to 3 As shown, a hollow shaft 25 is vertically inserted in the middle of the turntable 1, and the turntable 1 rotates on the hollow shaft 25. The hollow shaft 25 is hollow inside, and a three-way pipe 26 and a negative pressure pipe 27 are connected to the hollow shaft 25. The negative pressure pipe 27 is used to extract the air in the hollow shaft 25 and form a negative pressure inside the negative pressure pipe 27. The two output ends of the three-way pipe 26 are respectively rotatably connected to the two rotating columns 3, and the output end of the three-way pipe 26 is connected to the negative pressure cavity in the clamping plate 4;

[0054] The three-way pipe 26 rotates on the hollow shaft 25 .

[0055] In detail, since the turntable 1 needs to rotate, the hollow shaft 25 supports the turntable 1. Therefore, when the turntable 1 rotates, it can drive the three-way pipe 26 and the hollow shaft 25 to rotate relative to each other. The three-way pipe 26 and the hollow shaft 25 remain in a connected state. Since the rotating column 3 and the splint 4 need to rotate, the rotating column 3 is rotatably connected to the output end of the three-way pipe 26, and the output end of the three-way pipe 26 is connected to the negative pressure chamber in the splint 4, so that the inside of the hollow shaft 25 is evacuated into a negative pressure through the negative pressure pipe 27, so that the three-way pipe 26 can extract the air in the negative pressure chamber, thereby using the suction hole 24 to negatively adsorb and fix the object.

[0056] like Figure 1 As shown, a base 28 is fixed to the bottom of the hollow shaft 25, and the base 28 is connected to the first semicircular plate 7 through a plurality of side plates 29. A transmission ring 30 is arranged at the bottom of the turntable 1, and the transmission ring 30 is sleeved on the outer side of the hollow shaft 25. A motor 31 and a third transmission wheel 32 for providing power to the transmission ring 30 are arranged on the base 28.

[0057] In detail, the base 28 can provide support for the first semicircular plate 7, the hollow shaft 25 and the motor 31, the side plate 29 is fixedly connected to the first semicircular plate 7, the motor 31 is fixed on the base 28, the third transmission wheel 32 is installed on the output end of the motor 31, and the third transmission wheel 32 is transmission-connected to the transmission ring 30, thereby providing power for the circular motion of the turntable 1.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An X-ray based detection device, characterized in that: It includes a turntable for supporting, two support plates relatively mounted on the turntable, a rotating column rotatably mounted on each support plate, a clamping plate mounted on each rotating column and an intermittent mechanism, the turntable rotates around its axis, the two support plates are deviated from the axis of the turntable, the clamping plates on the two support plates are used to clamp objects, an X-ray generator and an X-ray receiver are arranged between the two clamping plates, and the X-ray generator and the X-ray receiver are used to detect objects; Wherein, the intermittent mechanism is used to provide intermittent power to a rotating column; The intermittent mechanism comprises a first semicircular plate located outside the rotating disk, a plurality of stepped grooves are formed on the first semicircular plate, the stepped grooves are in a stepped shape, the stepped grooves are composed of a plurality of horizontal parts and inclined parts arranged in sequence, and the upper and lower ends of the stepped grooves both penetrate the first semicircular plate; A fixed plate is rolled on the rotating disk, two first transmission wheels are rotatably arranged on the fixed plate, the two first transmission wheels are driven by a first transmission belt, the first transmission belt is vertical, a plurality of sliding columns that can slide in the step groove are arranged on the first transmission belt, a second transmission wheel is driven on one of the first transmission wheels, and the second transmission wheel and a rotating column are driven by a second transmission belt; The first semicircular plate is provided with a second semicircular plate, the first semicircular plate and the second semicircular plate form a complete circle, an arc-shaped groove is provided on the second semicircular plate, one end of the arc-shaped groove is connected to a stepped groove at one end of the first semicircular plate, and the other end of the arc-shaped groove is provided with an inclined groove, which is close to a stepped groove at the other end of the first semicircular plate; The arc groove is coaxial with the first semicircular plate.

2. The X-ray based detection device according to claim 1, characterized in that: A plurality of first cylinders roll on the turntable, and an isolation cover is connected to the extended ends of the plurality of first cylinders. The X-ray generator and the X-ray receiver are relatively fixed on the inner wall of the isolation cover, and two notches for use with two support plates are opened on the front wall of the isolation cover.

3. The X-ray based detection device according to claim 2, characterized in that: A supporting plate on the turntable is fixedly connected to the turntable, and a sliding block is arranged on the other supporting plate. The sliding block is slidably mounted on the turntable, and the sliding block is connected to the turntable through a second cylinder.

4. The X-ray based detection device according to claim 3, characterized in that: A plurality of suction holes are provided on the working surface of the clamping plate, a negative pressure cavity is provided inside the clamping plate, and the negative pressure cavity is communicated with the suction holes.

5. The X-ray based detection device according to claim 4, characterized in that: A hollow shaft is vertically inserted in the middle of the turntable, and the turntable rotates on the hollow shaft. The interior of the hollow shaft is hollow, and a three-way pipe and a negative pressure pipe are connected to the hollow shaft. The negative pressure pipe is used to extract the air in the hollow shaft and form a negative pressure inside the negative pressure pipe. The two output ends of the three-way pipe are respectively rotatably connected to the two rotating columns, and the output end of the three-way pipe is connected to the negative pressure cavity in the clamping plate; Among them, the three-way pipe rotates on the hollow shaft.

6. The X-ray based detection device according to claim 5, characterized in that: A base is fixed at the bottom of the hollow shaft, and the base is connected to the first semicircular plate through multiple side plates. A transmission ring is arranged at the bottom of the turntable, and the transmission ring is sleeved on the outside of the hollow shaft. A motor and a third transmission wheel for providing power to the transmission ring are arranged on the base.

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