A source of radiation

Abstract

This invention provides a device for assembling the outer shell of a radioactive source. A six-axis robotic arm is installed on the radioactive source processing production line. A core clamping structure is installed on each side of the six-axis robotic arm, and the two core clamping structures are arranged parallel to each other. Each core clamping structure includes a clamping seat, a horizontal displacement component, a vertical displacement component, grippers, and a support plate. The clamping seat and the horizontal displacement component are mounted on the radioactive source processing production line via the support plate, with the clamping seat located on one side of the horizontal displacement component. The movable end of the horizontal displacement component is fixedly connected to the vertical displacement component, and the movable end of the vertical displacement component is fixedly connected to the grippers. This device for assembling the outer shell of a radioactive source can move and assemble the outer shell of a radioactive source in three-dimensional space, replacing the traditional manual operation inside a glove box, which poses risks of radiation exposure and is inefficient. It avoids harm to the human body from radioactive sources and improves work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of radioactive source assembly, and in particular relates to a radioactive source shell assembly device. Background Technology

[0002] Radioactive sources are widely used in medical diagnostics, industrial non-destructive testing, environmental monitoring, and other fields. Their outer casing, as a core protective and load-bearing component, must simultaneously meet the requirements of radiation shielding, structural stability, and application scenario adaptability. The assembly of the radioactive source casing is a critical process to ensure the permanent and safe sealing of radioactive materials. Traditional assembly mainly relies on manual operation within a glove box, posing a risk of personnel exposure and exhibiting low efficiency. Therefore, developing a dedicated assembly device capable of high precision, automation, and remote control is crucial for ensuring personnel safety and improving packaging quality and reliability. Utility Model Content

[0003] In view of this, the present invention aims to propose a device for assembling the outer shell of a radioactive source, so as to solve the problems of traditional assembly methods that rely on manual operation inside a glove box, which poses the risk of personnel exposure and is inefficient.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A device for assembling the outer shell of a radioactive source is provided. A six-axis robotic arm is installed on the radioactive source processing production line. A source core clamping structure is installed on each side of the six-axis robotic arm, and the two source core clamping structures are arranged parallel to each other. The source core clamping structure includes a clamping seat, a horizontal displacement component, a vertical displacement component, a gripper, and a support plate. The clamping seat and the horizontal displacement component are installed on the radioactive source processing production line through the support plate, and the clamping seat is located on one side of the horizontal displacement component. The movable end of the horizontal displacement component is fixedly connected to the vertical displacement component, and the movable end of the vertical displacement component is fixedly connected to the gripper.

[0006] Furthermore, the clamping seat includes a first clamp, a second clamp, a support rod, a first cylinder, and a support base. The four supports are arranged in pairs facing each other on the upper end of the support plate. A support rod is arranged between every two supports. The outer periphery of the two support rods is slidably connected to one end of the first clamp. The first clamp and the second clamp are arranged facing each other. The lower end of the second clamp is fixedly connected to the upper end of the support plate. The first cylinder is fixedly installed on the side of the support plate near the first clamp through the support base. The first clamp is fixedly connected to the movable end of the first cylinder.

[0007] Furthermore, both the first and second clamps have grooves on their inner sides, which are used to abut against the periphery of the source core.

[0008] Furthermore, the horizontal displacement component includes a first mounting base, a first slider, and a first servo motor. The first mounting base is fixedly mounted on the upper end of the support plate. One side of the first mounting base is slidably connected to one end of the first slider. The other end of the first slider is fixedly connected to the vertical displacement component. The first servo motor is fixedly mounted on one side outside the first mounting base.

[0009] The first lead screw is rotatably mounted inside the first mounting base. The output shaft of the first servo motor is fixedly connected to one end of the first lead screw, and the outer thread of the first lead screw is connected to the first slider.

[0010] Furthermore, two first photoelectric switches are provided on one side of the first mounting base, and the two first photoelectric switches are arranged parallel to each other. One side of the first slider is fixedly connected to one end of the first photosensitive film, and the other end of the first photosensitive film is used to sense the recognition end of any of the first photoelectric switches.

[0011] Furthermore, the vertical displacement assembly includes a second mounting base, a second servo motor, and a second slider. The second mounting base is fixedly mounted on one side of the first slider, and the second slider is slidably connected to one side of the second mounting base. A gripper is rotatably mounted on the second slider, and the second servo motor is fixedly mounted on the upper end of the second mounting base.

[0012] The second lead screw is rotatably mounted inside the second mounting base. The output shaft of the second servo motor is fixedly connected to one end of the second lead screw, and the outer thread of the second lead screw is connected to the second slider.

[0013] Furthermore, two second photoelectric switches are provided on one side of the second mounting base. The two second photoelectric switches are arranged parallel to each other. One side of the second slider is fixedly connected to one end of the second photosensitive film. The other end of the second photosensitive film is used to sense the actuation end of any of the second photoelectric switches.

[0014] Furthermore, the gripper includes a pneumatic chuck, a rotating shaft, and a rotating motor. The rotating motor is fixedly installed on the upper end of the second slider, and the output end of the rotating motor is fixedly connected to the upper end of the rotating shaft. The outer periphery of the rotating shaft is rotatably disposed within the second slider, and the pneumatic chuck is fixedly installed on the lower end of the rotating shaft.

[0015] Compared with the prior art, the radioactive source casing assembly device of this utility model has the following advantages:

[0016] Beneficial effects:

[0017] (1) The radioactive source shell assembly device described in this utility model can move and assemble the radioactive source shell in three-dimensional space, which is used to replace the traditional manual operation in the glove box, which poses the risk of personnel exposure and is inefficient, avoids the harm of radioactive source to the human body, and improves work efficiency.

[0018] (2) The radioactive source shell assembly device described in this utility model is equipped with a clamping seat, which can be adapted to radioactive source shells of different diameters. It can meet the assembly requirements of various specifications of radioactive sources without replacing the entire component, thereby improving the applicability of the assembly table and reducing equipment modification costs.

[0019] (3) The radioactive source housing assembly device described in this utility model is equipped with a photoelectric switch and a photosensitive film, which can position the clamp and ensure the accurate assembly position of the radioactive source housing. Attached Figure Description

[0020] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of a radioactive source housing assembly device according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the source core clamping device described in an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the clamping seat described in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the horizontal displacement component described in an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the vertical displacement component described in an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the gripper described in an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Six-axis robotic arm; 2-Core clamping structure; 21-Clamping seat; 211-First clamp; 212-Second clamp; 213-Support rod; 214-First cylinder; 215-Support; 22-Horizontal displacement assembly; 221-First mounting base; 2211-First photoelectric switch; 222-First slider; 2221-First photosensitive film; 223-First servo motor; 23-Vertical displacement assembly; 231-Second mounting base; 2311-Second photoelectric switch; 232-Second servo motor; 2321-Second photosensitive film; 233-Second slider; 24-Gripper; 241-Pneumatic chuck; 242-Rotation motor; 25-Support plate. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] like Figure 1 and Figure 2As shown, a radioactive source casing assembly device is provided. A six-axis robotic arm 1 is installed on the radioactive source processing production line. A source core clamping structure 2 is installed on each side of the six-axis robotic arm 1, and the two source core clamping structures 2 are arranged parallel to each other. The source core clamping structure 2 includes a clamping seat 21, a horizontal displacement component 22, a vertical displacement component 23, a gripper 24, and a support plate 25. The clamping seat 21 and the horizontal displacement component 22 are installed on the radioactive source processing production line through the support plate 25, and the clamping seat 21 is located on one side of the horizontal displacement component 22. The movable end of the horizontal displacement component 22 is fixedly connected to the vertical displacement component 23, and the movable end of the vertical displacement component 23 is fixedly connected to the gripper 24. The six-axis robotic arm 1 is existing technology, and the model of the six-axis robotic arm 1 is ER20B-1760. It can move in three-dimensional space and assemble the casing of the radioactive source. It is used to replace the traditional manual operation in the glove box, which poses the risk of personnel exposure and has low efficiency. It avoids the harm of radioactive sources to the human body and improves work efficiency.

[0034] like Figure 3 As shown, the clamping seat 21 includes a first clamp 211, a second clamp 212, a support rod 213, a first cylinder 214, and a support 215. The four supports 215 are arranged in pairs facing each other on the upper end of the support plate 25. A support rod 213 is arranged between every two supports 215. The outer periphery of the two support rods 213 is slidably connected to one end of the first clamp 211. The first clamp 211 and the second clamp 212 are arranged facing each other. The lower end of the second clamp 212 is fixedly connected to the upper end of the support plate 25. The first cylinder 214 is fixedly installed on the side of the support plate 25 near the first clamp 211 through the support 215. The first clamp 211 is fixedly connected to the movable end of the first cylinder 214. The inner sides of the first clamp 211 and the second clamp 212 are provided with grooves for abutting against the periphery of the source core.

[0035] The first cylinder 214 is existing technology, and its model is SDAS-25x2020. When the six-axis robotic arm 1 transports the radioactive source core with its outer shell to the clamping seat 21, the six-axis robotic arm 1 places the radioactive source in the groove between the first clamp 211 and the second clamp 212. The first cylinder 214 is extended, and the movable end of the first cylinder 214 pushes the first clamp 211 to slide along the support rod 213 toward the second clamp 212 until the inner grooves of the first clamp 211 and the second clamp 212 are completely in contact with the outer periphery of the radioactive source shell. At this time, the radioactive source shell is fixed, and the clamping and positioning are completed. The clamping seat 21 is provided, which can be adapted to radioactive source shells of different diameters. It can meet the assembly requirements of various specifications of radioactive sources without replacing the entire component, thereby improving the applicability of the assembly table and reducing the equipment modification cost.

[0036] like Figure 4As shown, the horizontal displacement component 22 includes a first mounting base 221, a first slider 222, and a first servo motor 223. The first mounting base 221 is fixedly mounted on the upper end of the support plate 25. One side of the first mounting base 221 is slidably connected to one end of the first slider 222. The other end of the first slider 222 is fixedly connected to the vertical displacement component 23. The first servo motor 223 is fixedly mounted on one side outside the first mounting base 221. A first lead screw is rotatably arranged inside the first mounting base 221. The output shaft of the first servo motor 223 is fixedly connected to one end of the first lead screw. The outer periphery of the first lead screw is threadedly connected to the first slider 222.

[0037] The first servo motor 223 is existing technology. The model of the first servo motor 223 is MS1-R. The first lead screw is rotatably installed inside the first mounting base 221. The output shaft of the first servo motor 223 is fixedly connected to one end of the first lead screw. The outer thread of the first lead screw is connected to the first slider 222. The controller controls the rotation of the first servo motor 223 and drives the first lead screw to rotate. Since the outer thread of the first lead screw is connected to the first slider 222, during the rotation of the first lead screw, the first slider 222 moves along the direction of the first lead screw and drives the vertical displacement component 23 set above to move horizontally.

[0038] Two first photoelectric switches 2211 are arranged on one side of the first mounting base 221, and the two first photoelectric switches 2211 are arranged parallel to each other. One side of the first slider 222 is fixedly connected to one end of the first photosensitive film 2221. The other end of the first photosensitive film 2221 is used to sense the recognition end of any first photoelectric switch 2211. The first photoelectric switch 2211 is existing technology, and the model of the first photoelectric switch 2211 is EE-SX672. The first servo motor 223 drives the first slider 222 to move. When the first photosensitive film 2221 moves to the recognition end of one of the first photoelectric switches 2211, the first photosensitive film 2221 moves with the slider when it moves horizontally. When it reaches the recognition end of the corresponding group of first photoelectric switches 2211 at the target position, the two first photoelectric switches 2211 and the first photosensitive film 2221 are set up. Through non-contact sensing, the position of the first slider 222 can be detected, and the signal can be fed back to the control system to control the start and stop of the first servo motor 223, avoiding displacement deviation and ensuring that the gripper 24 is aligned with the operating reference, which can improve the assembly accuracy of the source core.

[0039] like Figure 5 As shown, the vertical displacement assembly 23 includes a second mounting base 231, a second servo motor 232, and a second slider 233. The second mounting base 231 is fixedly mounted on one side of the first slider 222, and the second slider 233 is slidably connected to one side of the second mounting base 231. A gripper 24 is rotatably mounted on the second slider 233, and the second servo motor 232 is fixedly mounted on the upper end of the second mounting base 231.

[0040] The second lead screw is rotatably mounted inside the second mounting base 231. The output shaft of the second servo motor 232 is fixedly connected to one end of the second lead screw. The second slider 233 is threadedly connected to the outer side of the second lead screw. The second servo motor 232 is existing technology, and its model is MS1-R. When the controller is turned on, the controller drives the output shaft of the second servo motor 232 to rotate, which in turn drives the second lead screw to rotate, allowing the second slider 233 to move within the mounting base.

[0041] like Figure 5 As shown, two second photoelectric switches 2311 are provided on one side of the second mounting base 231. The two second photoelectric switches 2311 are arranged parallel to each other. One side of the second slider 233 is fixedly connected to one end of the second photosensitive film 2321. The other end of the second photosensitive film 2321 is used to sense the actuation end of any second photoelectric switch 2311. The second photoelectric switch 2311 is prior art, and the model of the second photoelectric switch 2311 is EE-SX672.

[0042] like Figure 6 As shown, the gripper 24 includes a pneumatic chuck 241, a rotating shaft, and a rotary motor 242. The rotary motor 242 is fixedly mounted on the upper end of the second slider 233. The movable end of the rotary motor 242 is fixedly connected to the upper end of the rotating shaft. The outer periphery of the rotating shaft is rotatably disposed within the second slider 233. The rotary motor 242 is existing technology, and its model is ATO-60SY-M01220S. The pneumatic chuck 241 is fixedly mounted on the lower end of the rotating shaft. The pneumatic chuck 241 is also existing technology. Designated as DH-RoboticsRGI, the controller controls the vertical displacement component 23 to move downwards, approaching the radioactive source core. The pneumatic chuck 241 clamps the outer shell of the radioactive source core. At this time, the controller controls the rotary motor 242 to rotate, which in turn drives the outer shell of the radioactive source core to rotate, thus removing the outer shell of the radioactive source core. When installing the outer shell of the radioactive source core, the controller repeats the above operation, first controlling the rotary motor 242 to rotate, which in turn drives the outer shell of the radioactive source core to rotate, and then releasing the pneumatic chuck 241 to lower the outer shell of the radioactive source core.

[0043] The working process of a radioactive source casing assembly device:

[0044] After the radioactive source processing line is started, the six-axis robotic arm 1 first transfers the radioactive source core with the outer shell to be assembled to the clamping seat 21 of one of the core clamping structures 2, and places the core stably in the groove between the first clamp 211 and the second clamp 212. Then, the first cylinder 214 is started, and its movable end pushes the first clamp 211 to slide along the two support rods 213 towards the second clamp 212 until the inner grooves of the first clamp 211 and the second clamp 212 are completely in contact with the outer periphery of the core, realizing the clamping and positioning of the core. Next, the first servo motor 223 is started, driving the first lead screw in the first mounting base 221 to rotate, driving the first slider 222, which is threadedly connected to the lead screw, to move horizontally, thereby driving the vertical displacement component 23 and the gripper 24 to approach the core. When the first photosensitive film 2221 on one side of the first slider 222 senses the first photoelectric switch 2211 at the target position, the first servo motor 223 stops to complete the horizontal positioning. Then, the second servo motor 232 is started, driving the second mounting base... The second lead screw inside 231 rotates, causing the second slider 233 to descend vertically, bringing the gripper 24 closer to the source core shell. When the second photosensitive film 2321 on one side of the second slider 233 senses the second photoelectric switch 2311 at the target position, the second servo motor 232 stops to complete the vertical positioning. At this time, the pneumatic chuck 241 of the gripper 24 starts and clamps the source core shell. At the same time, the rotary motor 242 starts, and its output end drives the rotating shaft and the shell held by the pneumatic chuck 241 to rotate synchronously, completing the assembly of the shell and the source core. After the assembly is completed, the pneumatic chuck 241 releases the shell, the second servo motor 232 rotates in the opposite direction to drive the second slider 233 to rise and reset, the first servo motor 223 rotates in the opposite direction to drive the first slider 222 and the vertical displacement component 23 to reset horizontally, the first cylinder 214 retracts to drive the first clamp 211 away from the second clamp 212 to release the source core, and finally the six-axis robotic arm 1 transfers the assembled radiation source to the next process. Another source core clamping structure 2 can be started synchronously to achieve continuous operation.

[0045] The control method in this embodiment is controlled by a controller. The controller circuit can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this document is mainly used to protect mechanical devices, and the control method and circuit connection will not be explained in detail here.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for assembling the outer casing of a radioactive source, characterized in that: A six-axis robotic arm (1) is installed on the processing line of the radioactive source. A source core clamping structure (2) is installed on each side of the six-axis robotic arm (1), and the two source core clamping structures (2) are arranged in parallel to each other. The source core clamping structure (2) includes a clamping seat (21), a horizontal displacement component (22), a vertical displacement component (23), a gripper (24), and a support plate (25). The clamping seat (21) and the horizontal displacement component (22) are installed on the processing line of the radioactive source through the support plate (25). The clamping seat (21) is located on one side of the horizontal displacement component (22). The movable end of the horizontal displacement component (22) is fixedly connected to the vertical displacement component (23), and the movable end of the vertical displacement component (23) is fixedly connected to the gripper (24).

2. The casing assembly device for a radioactive source according to claim 1, characterized in that: The clamping seat (21) includes a first clamp (211), a second clamp (212), a support rod (213), a first cylinder (214), and a support (215). The four supports (215) are arranged opposite each other on the upper end of the support plate (25). A support rod (213) is arranged between every two supports (215). The outer periphery of the two support rods (213) is slidably connected to one end of the first clamp (211). The first clamp (211) and the second clamp (212) are arranged opposite each other. The lower end of the second clamp (212) is fixedly connected to the upper end of the support plate (25). The first cylinder (214) is fixedly installed on the side of the support plate (25) near the first clamp (211) through the support (215). The first clamp (211) is fixedly connected to the movable end of the first cylinder (214).

3. The casing assembly device for a radioactive source according to claim 2, characterized in that: The inner sides of the first clamp (211) and the second clamp (212) are provided with grooves, which are used to abut against the outer periphery of the source core.

4. The casing assembly device for a radioactive source according to claim 1, characterized in that: The horizontal displacement assembly (22) includes a first mounting base (221), a first slider (222), and a first servo motor (223). The first mounting base (221) is fixedly mounted on the upper end of the support plate (25). One side of the first mounting base (221) is slidably connected to one end of the first slider (222). The other end of the first slider (222) is fixedly connected to the vertical displacement assembly (23). The first servo motor (223) is fixedly mounted on one side outside the first mounting base (221). The first lead screw is rotatably mounted inside the first mounting base (221), and the output shaft of the first servo motor (223) is fixedly connected to one end of the first lead screw. The outer thread of the first lead screw is connected to the first slider (222).

5. The casing assembly device for a radioactive source according to claim 4, characterized in that: Two first photoelectric switches (2211) are provided on one side of the first mounting base (221). The two first photoelectric switches (2211) are arranged parallel to each other. One side of the first slider (222) is fixedly connected to one end of the first photosensitive film (2221). The other end of the first photosensitive film (2221) is used to sense the recognition end of any first photoelectric switch (2211).

6. The casing assembly device for a radioactive source according to claim 2, characterized in that: The vertical displacement assembly (23) includes a second mounting base (231), a second servo motor (232), and a second slider (233). The second mounting base (231) is fixedly mounted on one side of the first slider (222), and the second slider (233) is slidably connected to one side of the second mounting base (231). A gripper (24) is rotatably mounted on the second slider (233), and the second servo motor (232) is fixedly mounted on the upper end of the second mounting base (231). The second lead screw is rotatably mounted inside the second mounting base (231), and the output shaft of the second servo motor (232) is fixedly connected to one end of the second lead screw. The outer thread of the second lead screw is connected to the second slider (233).

7. The casing assembly device for a radioactive source according to claim 6, characterized in that: Two second photoelectric switches (2311) are provided on one side of the second mounting base (231). The two second photoelectric switches (2311) are arranged parallel to each other. One side of the second slider (233) is fixedly connected to one end of the second photosensitive film (2321). The other end of the second photosensitive film (2321) is used to sense the execution end of any second photoelectric switch (2311).

8. The casing assembly device for a radioactive source according to claim 6, characterized in that: The gripper (24) includes a pneumatic chuck (241), a rotating shaft, and a rotating motor (242). The rotating motor (242) is fixedly installed on the upper end of the second slider (233). The output end of the rotating motor (242) is fixedly connected to the upper end of the rotating shaft. The outer periphery of the rotating shaft is rotatably set inside the second slider (233). The pneumatic chuck (241) is fixedly installed on the lower end of the rotating shaft.

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