Surface treatment method and device for stainless steel cladding for nuclear fuel

Abstract

The invention discloses a surface treatment method and device for a stainless steel cladding for nuclear fuel, the device comprises a frame body, a shell is fixedly connected between the inner walls of the two sides of the frame body, a feeding box communicating with the interior of the shell is fixedly mounted at the top of the shell, and two second telescopic rods are fixedly mounted at the inner top of the frame body; and the tops of the two second telescopic rods are fixedly provided with a same trapezoidal block located on one side of the shell, the side wall of the end, away from the shell, of the trapezoidal block is rotationally connected with a movable plate, and the side wall of the end, away from the shell, of the trapezoidal block is fixedly provided with a fixed plate located below the movable plate. According to the device, in the rotating process of the fan-shaped block, feeding of the cladding pipe can be automatically completed, meanwhile, the fed cladding pipe can be polished, scrap blowing treatment can be conducted on the cladding pipe after polishing is completed, part of scraps adhering to the surface can be removed, and finally the treated cladding pipe can fall into an anti-rust box to be subjected to anti-rust treatment.

Description

Technical Field

[0001] The invention relates to the technical field of cladding tube surface treatment, and in particular to a method and device for surface treatment of stainless steel cladding for nuclear fuel. Background Art

[0002] Nuclear fuel cladding tubes are key components in nuclear reactors and are mainly used as the first safety barrier for nuclear fuel. They not only protect nuclear fuel from erosion by the external environment, but also prevent radioactive substances from leaking into the environment, thus ensuring the safe operation of the reactor.

[0003] In the production process of stainless steel cladding tubes for nuclear fuel, especially for cladding tubes with specific size requirements, the surface treatment process faces many challenges. The currently commonly used processing device is highly dependent on manual assistance during operation, which is not only reflected in the feeding stage of the cladding tube, but also throughout the subsequent clamping, fixing and fine grinding process. This highly manual operation mode is not only inefficient and increases production costs, but may also lead to unstable processing quality. What is more inconvenient is that after the grinding process is completed, the cladding tube often needs to be manually transferred to another station for rust prevention. This transfer process is not only time-consuming and labor-intensive, but may also damage the surface of the cladding tube due to improper handling, affecting the overall quality. Therefore, in order to improve production efficiency, reduce manual intervention, and ensure the continuity and quality stability of the processing process, it is urgent to develop a comprehensive stainless steel cladding tube surface treatment device. Such a device will be able to significantly improve the automation level of the production line, reduce labor intensity, and improve product quality and production efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a surface treatment method and device for stainless steel cladding for nuclear fuel.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: The foldable container is provided with a plurality of movable parts, and the movable parts are provided with a plurality of movable parts, and the movable parts are provided with a plurality of movable parts.

[0006] Preferably, the feeding assembly includes a servo motor fixedly mounted on the inner wall of one end of the cover body, the output shaft of the servo motor is fixedly connected to a fan-shaped block, a chuck is fixedly mounted on a side wall of the fan-shaped block away from the servo motor, a rotating shaft is rotatably connected between the two side inner walls of the frame body, a round block close to the inner wall of the shell is fixedly mounted on the outer wall of the rotating shaft, a loading cavity is provided at the edge of the outer wall of the round block, a loading hole is provided on the shell, one end of the rotating shaft passes through one side inner wall of the frame body and is fixedly mounted with a rotating disk located in the cover body, the rotating disk is adapted to the chuck, a toggle groove is provided on the rotating disk, and a toggle rod adapted to the toggle groove is rotatably connected to the side wall of the fan-shaped block close to the chuck.

[0007] Preferably, the movable component includes a fourth plug cylinder fixedly mounted on the bottom of the fixed plate, the fixed plate is penetrated by a support rod slidably connected to it, the lower end of the support rod is fixedly mounted with a fifth plug block slidably connected to the inner wall of the fourth plug cylinder, the bottom of the fourth plug cylinder is provided with a second connecting pipe connected to its interior, the first plug cylinder is fixedly mounted on the inner wall of one side of the cover body, one end of the first plug cylinder close to the fan-shaped block is penetrated by a first connecting rod slidably connected to it, the end of the first connecting rod located outside the first plug cylinder is fixedly mounted with a first block abutting against the fan block, a first spring is fixedly connected between the first block and the first plug cylinder, the end of the first connecting rod located in the first plug cylinder is fixedly mounted with the first plug block slidably connected to its inner wall, the end of the second connecting rod located in the first plug cylinder is connected to the first plug cylinder at a distance from the fourth plug cylinder, and the end of the second connecting pipe connected to the first plug cylinder is located on the side of the first block far away from the fan block.

[0008] Preferably, the processing assembly includes a connecting plate fixedly installed between the inner walls on both sides of the frame, a rectangular cylinder is fixedly installed at the bottom of the connecting plate, a fourth connecting rod slidably connected to the bottom of the rectangular cylinder is penetrated, a fourth plug block slidably connected to the inner wall of the rectangular cylinder is fixedly installed on the upper end of the fourth connecting rod, a mounting plate is fixedly installed on the lower end of the fourth connecting rod, a processing block located above the trapezoidal block is arranged below the mounting plate, two first telescopic rods fixedly installed on the inner wall of the frame are arranged on both sides of the trapezoidal block, the telescopic ends of the two first telescopic rods located on the same side of the trapezoidal block are fixedly installed with the same moving plate, a processing motor is fixedly installed on one side wall of the two moving plates close to the trapezoidal block, a clamping disk is fixedly installed on the output shafts of the two processing motors, a touch rod is fixedly installed on one side wall of the two moving plates away from the trapezoidal block, a lifting block fixedly connected to the bottom of the mounting plate is arranged on one side of the two moving plates away from the trapezoidal block, the two touch rods are respectively abutted against the two lifting blocks, and a lifting plate located below the lifting block is fixedly installed on the side walls at both ends of the trapezoidal block.

[0009] Preferably, a third plug barrel is fixedly installed on the inner wall of one end of the cover body, a third connecting rod is penetrated by the end of the third plug barrel close to the fan-shaped block and is slidably connected, a third connecting rod is fixedly installed on the end of the third connecting rod located outside the third plug barrel with a third block that abuts against the fan-shaped block, a third spring is fixedly connected between the third block and the third plug barrel, a third connecting rod is fixedly installed on the end located in the third plug barrel with a third plug block that is slidably connected to the inner wall thereof, a first connecting tube connected to the interior of the rectangular cylinder is provided above the rectangular cylinder, an end of the first connecting tube away from the rectangular cylinder is connected to the third plug barrel, and an end of the first connecting tube connected to the third plug barrel is located on a side of the third block away from the fan-shaped block.

[0010] Preferably, the chip blowing assembly includes a second plug barrel fixedly mounted on the inner wall of the other side of the cover body, the second plug barrel having one end close to the sector block and provided with a second connecting rod slidably connected thereto, the second connecting rod having one end located outside the second plug barrel fixedly mounted with a second block abutting against the sector block, a second spring fixedly connected between the second block and the second plug barrel, the second connecting rod having one end located in the second plug barrel fixedly mounted with a second plug block slidably connected to its inner wall, the second plug barrel is provided with a third connecting tube and a fourth connecting tube connected to its interior, the third connecting tube and the fourth connecting tube being connected to the second plug barrel at one end both located on the side of the second plug block away from the sector block, a chip blowing box is fixedly mounted between the inner walls on both sides of the frame body, the trapezoidal block being away from the outer shell side, and the fourth connecting tube being connected to the chip blowing box at one end away from the second plug barrel.

[0011] Preferably, a slope is provided on the lifting block, and a one-way valve is provided in both the third connecting pipe and the fourth connecting pipe.

[0012] A method for treating the surface of a stainless steel cladding for nuclear fuel comprises the following steps: In the first step, the servo motor is used to rotate its output shaft counterclockwise by 270 degrees, the movable plate is deflected upward by a certain distance through the movable assembly, the cladding tube in the feeding cavity is rolled down to between the movable plate and the trapezoidal block through the feeding assembly, the cladding tube between the movable plate and the trapezoidal block is clamped and polished in turn through the processing assembly, and the polished cladding tube is blown through the chip blowing assembly to blow away the residual debris on the surface; In the second step, the servo motor is used to rotate its output shaft counterclockwise by 270 degrees, and the clamping of the polished cladding tube is released through the processing component. The other cladding tube in the loading box is dropped into the loading cavity through the feeding component, and the movable plate is deflected downward to the initial state through the movable component, so that the polished cladding tube rolls into the anti-rust box.

[0013] Beneficial effects of the present invention: By setting up a movable component, the movable plate can be first deflected upward by a certain angle during the rotation of the sector block, so that the cladding tubes that roll down subsequently can stay between the movable plate and the inclined surface of the trapezoidal block for processing. At the same time, after the cladding tube processing is completed, the movable plate can be deflected downward back to the initial position, so that the processed cladding tubes can roll along the surface of the movable plate into the anti-rust box for anti-rust treatment.

[0014] By setting up the feeding assembly, the round block can be rotated by a certain angle during the rotation of the sector block, so that the cladding tubes in the loading box can be rotated and transported to the loading hole one by one, realizing automatic loading of the cladding tubes and improving work efficiency.

[0015] By providing the processing assembly, the cladding tubes staying between the movable plate and the inclined surface of the trapezoidal block can be clamped and processed successively during the rotation of the sector block, and the clamping of the cladding tubes can be released after the processing is completed.

[0016] By providing a chip blowing assembly, the processed cladding tube can be subjected to chip blowing during the rotation of the sector block, thereby removing some of the debris adhering to the cladding tube to avoid affecting the subsequent rust prevention effect, and the use is convenient.

[0017] The present invention can automatically complete the loading of the cladding tubes during the rotation of the sector blocks, and can also grind the loaded cladding tubes at the same time. After the grinding is completed, the cladding tubes can also be subjected to chip blowing treatment to remove some debris adhering to the surface, and finally the treated cladding tubes can be dropped into the anti-rust box for anti-rust treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of one side of a surface treatment device for a stainless steel cladding for nuclear fuel proposed by the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the other side of a surface treatment device for a stainless steel cladding for nuclear fuel proposed by the present invention; Figure 3 It is a schematic diagram of the planar structure inside the cover body of the present invention; Figure 4 It is a schematic diagram of the planar structure of the housing and the trapezoidal block of the present invention; Figure 5 It is a three-dimensional schematic diagram of the internal structure of the cover body of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the trapezoidal block of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the lifting block and the touch rod of the present invention.

[0019] In the figure: 1 frame, 2 feeding box, 3 rectangular cylinder, 4 mounting plate, 5 chip blowing box, 6 rust-proof box, 7 movable plate, 8 first connecting pipe, 9 shell, 10 second connecting pipe, 11 cover, 12 third connecting pipe, 13 connecting plate, 14 processing block, 15 first telescopic rod, 16 tension spring, 17 moving plate, 18 lifting plate, 19 first plug cylinder, 20 first plug block, 21 first connecting rod, 22 first spring, 23 rotating disk, 24 toggle groove, 25 first block, 26 toggle rod, 27 fan-shaped block, 28 second block, 29 second spring, 30 second connecting rod Rod, 31 second plug block, 32 fourth connecting pipe, 33 chuck, 34 third block, 35 third spring, 36 third connecting rod, 37 third plug block, 38 round block, 39 rotating shaft, 40 feeding chamber, 41 feeding hole, 42 fourth plug block, 43 fourth connecting rod, 44 supporting rod, 45 fixing plate, 46 fourth plug cylinder, 47 fifth plug block, 48 second plug cylinder, 49 third plug cylinder, 50 servo motor, 51 lifting block, 52 processing motor, 53 clamping disk, 54 fourth spring, 55 second telescopic rod, 56 touch rod, 57 trapezoidal block, 58 collecting box. DETAILED DESCRIPTION

[0020] 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.

[0021] Reference Figure 1-Figure 7A surface treatment device for stainless steel cladding for nuclear fuel, comprising a frame 1, a shell 9 is fixedly connected between the inner walls of both sides of the frame 1, a loading box 2 connected to the inside of the shell 9 is fixedly installed on the top of the shell 9, two second telescopic rods 55 are fixedly installed on the inner top of the frame 1, a trapezoidal block 57 located on one side of the shell 9 is fixedly installed on the top of the two second telescopic rods 55, a movable plate 7 is rotatably connected to the side wall of the trapezoidal block 57 away from the shell 9, a fixed plate 45 located below the movable plate 7 is fixedly installed on the side wall of the trapezoidal block 57 away from the shell 9, a collecting box 58 located below the movable plate 7 is arranged on the top of the fixed plate 45, a rust-proof box 6 is arranged on the side of the fixed plate 45 away from the trapezoidal block 57, a cover 11 is fixedly installed on the outer wall of one side of the frame 1, and a feeding assembly is arranged on the frame 1; The feeding assembly includes a servo motor 50 fixedly mounted on the inner wall of one end of the cover body 11, the output shaft of the servo motor 50 is fixedly connected with a sector block 27, a chuck 33 is fixedly mounted on a side wall of the sector block 27 away from the servo motor 50, a rotating shaft 39 is rotatably connected between the inner walls of both sides of the frame body 1, a round block 38 close to the inner wall of the shell 9 is fixedly mounted on the outer wall of the rotating shaft 39, a loading cavity 40 is provided at the edge of the outer wall of the round block 38, a loading hole 41 is provided on the shell 9, one end of the rotating shaft 39 passes through the inner wall of one side of the frame body 1 and is fixedly mounted with a rotating disk 23 located in the cover body 11, the rotating disk 23 is adapted to the chuck 33, the chuck 33 keeps the rotating disk 23 stable after rotation, a toggle groove 24 is provided on the rotating disk 23, and a toggle rod 26 adapted to the toggle groove 24 is rotatably connected on a side wall of the sector block 27 close to the chuck 33; The fixed plate 45 is provided with a movable assembly connected to the feeding assembly, and the movable assembly includes a fourth plug cylinder 46 fixedly mounted on the bottom of the fixed plate 45, a support rod 44 slidably connected to the fixed plate 45 is penetrated, and a fifth plug block 47 slidably connected to the inner wall of the fourth plug cylinder 46 is fixedly mounted at the lower end of the support rod 44, and a second connecting pipe 10 connected to the inside of the fourth plug cylinder 46 is disposed at the bottom of the fourth plug cylinder 46, and a first plug cylinder 19 is fixedly mounted on the inner wall of one side of the cover body 11, and a first plug cylinder 19 is penetrated at one end of the first plug cylinder 19 close to the fan-shaped block 27 and a fifth plug block 47 slidably connected to the inner wall of the fourth plug cylinder 46 is fixedly mounted. The first connecting rod 21 is connected, and the end of the first connecting rod 21 located outside the first plug cylinder 19 is fixedly installed with a first stopper 25 that abuts against the sector block 27, and a first spring 22 is fixedly connected between the first stopper 25 and the first plug cylinder 19. The end of the first connecting rod 21 located inside the first plug cylinder 19 is fixedly installed with a first plug block 20 that is slidably connected to the inner wall thereof, and the end of the second connecting tube 10 away from the fourth plug cylinder 46 is connected to the first plug cylinder 19, and the end of the second connecting tube 10 connected to the first plug cylinder 19 is located on the side of the first plug block 20 away from the sector block 27; The frame 1 is provided with a processing assembly connected to the feeding assembly, and the processing assembly includes a connecting plate 13 fixedly installed between the inner walls on both sides of the frame 1, a rectangular cylinder 3 is fixedly installed at the bottom of the connecting plate 13, a fourth connecting rod 43 slidably connected to the bottom of the rectangular cylinder 3 is penetrated, a fourth plug 42 slidably connected to the inner wall of the rectangular cylinder 3 is fixedly installed at the upper end of the fourth connecting rod 43, a mounting plate 4 is fixedly installed at the lower end of the fourth connecting rod 43, and a processing block 57 located above the trapezoidal block 57 is provided below the mounting plate 4. Block 14, two first telescopic rods 15 are fixedly mounted on the inner wall of the frame 1 on both sides of the trapezoidal block 57, and the telescopic ends of the two first telescopic rods 15 on the same side of the trapezoidal block 57 are fixedly mounted with the same moving plate 17, and the processing motor 52 is fixedly mounted on the side wall of the two moving plates 17 close to the trapezoidal block 57, and the clamping plate 53 is fixedly mounted on the output shaft of the two processing motors 52, and the touch rod 56 is fixedly mounted on the side wall of the two moving plates 17 away from the trapezoidal block 57, and the two moving plates The side of the trapezoidal block 57 away from the trapezoidal block 57 is provided with a lifting block 51 fixedly connected to the bottom of the mounting plate 4, and the two touch rods 56 are respectively against the two lifting blocks 51. The lifting plates 18 located below the lifting blocks 51 are fixedly installed on the side walls of both ends of the trapezoidal block 57. A third plug cylinder 49 is fixedly installed on the inner wall of one end of the cover body 11. The end of the third plug cylinder 49 close to the sector block 27 is penetrated by a third connecting rod 36 connected with the sliding connection. The end of the third connecting rod 36 located outside the third plug cylinder 49 is fixedly installed with a third connecting rod 36 connected with the sector block 27. The third stopper 34 abuts against the block 27, a third spring 35 is fixedly connected between the third stopper 34 and the third plug cylinder 49, one end of the third connecting rod 36 located in the third plug cylinder 49 is fixedly installed with a third plug 37 slidably connected to its inner wall, a first connecting pipe 8 connected to the interior of the rectangular cylinder 3 is arranged above the rectangular cylinder 3, one end of the first connecting pipe 8 away from the rectangular cylinder 3 is connected to the third plug cylinder 49, and one end of the first connecting pipe 8 connected to the third plug cylinder 49 is located on the side of the third plug 37 away from the sector block 27; The frame 1 is provided with a chip blowing assembly connected to the feeding assembly, and the chip blowing assembly includes a second plug cylinder 48 fixedly mounted on the inner wall of the other side of the cover body 11, and the second plug cylinder 48 is provided with a second connecting rod 30 slidably connected thereto at one end thereof close to the sector block 27, and the second connecting rod 30 is fixedly mounted with a second stop block 28 abutting against the sector block 27 at one end thereof outside the second plug cylinder 48, and a second spring 29 is fixedly connected between the second stop block 28 and the second plug cylinder 48, and a second connecting rod 30 is fixedly mounted with a second spring 29 slidably connected to the inner wall thereof at one end thereof inside the second plug cylinder 48 The second plug block 31 and the second plug cylinder 48 are provided with a third connecting pipe 12 and a fourth connecting pipe 32 connected with the interior thereof. The ends of the third connecting pipe 12 and the fourth connecting pipe 32 connected with the second plug cylinder 48 are both located on the side of the second plug block 31 away from the fan-shaped block 27. A chip blowing box 5 away from the outer shell 9 is fixedly installed with a trapezoidal block 57 between the inner walls on both sides of the frame 1. The end of the fourth connecting pipe 32 away from the second plug cylinder 48 is connected to the chip blowing box 5. A slope is provided on the lifting block 51. One-way valves are provided in the third connecting pipe 12 and the fourth connecting pipe 32.

[0022] A method for treating the surface of a stainless steel cladding for nuclear fuel comprises the following steps: In the first step, the servo motor 50 is used to rotate its output shaft counterclockwise by 270 degrees, the movable plate 7 is deflected upward by a certain distance through the movable assembly, and the cladding tubes in the loading chamber 40 are rolled down to between the movable plate 7 and the trapezoidal block 57 through the feeding assembly. The cladding tubes between the movable plate 7 and the trapezoidal block 57 are clamped and polished in turn through the processing assembly, and the polished cladding tubes are blown through the chip blowing assembly to blow away the residual debris on the surface; In the second step, the servo motor 50 is used to rotate its output shaft counterclockwise by 270 degrees, and the clamping of the polished cladding tube is released through the processing component. The other cladding tube in the loading box 2 is dropped into the loading cavity 40 through the feeding component, and the movable plate 7 is deflected downward to the initial state through the movable component, so that the polished cladding tube rolls into the anti-rust box 6.

[0023] When the present invention is used, the feeding box 2 stores enough cladding tubes, and one of the cladding tubes will fall into the feeding cavity 40, the rust-proof box 6 stores enough rust-proof agent, the second spring 29 is initially in a compressed state, and the initial position of the fan-shaped block 27 is located near Figure 3In the state shown, the servo motor 50 is then used to rotate its output shaft counterclockwise by 270 degrees, thereby enabling the sector block 27, the chuck 33 and the lever 26 to rotate counterclockwise by 270 degrees. During the first counterclockwise rotation of the sector block 27 by 90 degrees, the sector block 27 causes the first stopper 25 to move away from the axis of the output shaft of the servo motor 50, and the first spring 22 is compressed. By setting the first connecting rod 21, the first stopper 20 can be moved away from the sector block 27, thereby enabling the hydraulic oil in the first stopper cylinder 19 to pass through the second connecting pipe 1 0 is squeezed into the fourth plug cylinder 46, so that the fifth plug block 47 and the support rod 44 can move upward, so that the movable plate 7 can be deflected upward by a certain distance, and the movable plate 7 and the inclined surface of the trapezoidal block 57 form a "V" shape. During the first counterclockwise rotation of the sector block 27 by 90 degrees, the elastic force generated by the compression of the second spring 29 can make the second stopper 28, the second connecting rod 30 and the second plug block 31 move in the direction close to the output shaft axis of the servo motor 50, so that the external air can be sucked into the second plug cylinder 48 through the third connecting pipe 12; When the sector block 27 continues to rotate counterclockwise by 180 degrees, the lever 26 will cooperate with the toggle slot 24, so that the rotating disk 23, the rotating shaft 39 and the round block 38 can rotate clockwise by a certain angle, thereby aligning the feeding chamber 40 with the feeding hole 41, and the cladding tube will roll through the feeding hole 41 to the V"-shaped area between the trapezoidal block 57 and the movable plate 7. When the sector block 27 rotates counterclockwise by 180 degrees, the sector block 27 will cause the third stopper 34, the third connecting rod 36 and the third plugging block 37 to move away from the output shaft axis of the servo motor 50, the third spring 35 is compressed, and the hydraulic oil in the third plugging cylinder 49 is squeezed into the rectangular cylinder 3 through the first connecting pipe 8, so that the fourth plugging block 42, the fourth connecting rod 43, the mounting plate 4, the processing block 14 and the lifting block 51 move downward as a whole; During the overall downward movement of the fourth plug block 42, the fourth connecting rod 43, the mounting plate 4, the processing block 14 and the lifting block 51, the touch rod 56 will first contact each other along the slope of the lifting block 51, so that the two movable plates 17 are close to each other by a certain distance, the first telescopic rod 15 is extended, the tension spring 16 is extended, and then the two clamping plates 53 are close to each other by a certain distance, so that the two ends of the cladding tube are pre-clamped, and then the lifting block 51 continues to move downward, and the lifting block 51 contacts the lifting plate 18, so that the trapezoidal block 57 and the movable plate 7 can move downward, the second telescopic rod 55 retracts, and the fourth spring 54 is compressed, so that the clamped cladding tube can be suspended in the air. At this time, by starting the processing motor 52, the clamped cladding tube can be rotated. Finally, the processing block 14 moving downward will contact the rotating cladding tube to process the surface of the cladding tube, and some debris generated during the grinding process will fall into the collection box 58 through the gap between the movable plate 7 and the inclined surface of the trapezoidal block 57; During the counterclockwise rotation of the sector block 27 by 270 degrees, the sector block 27 causes the second stop block 28 to move away from the axis of the output shaft of the servo motor 50, and the second spring 29 is compressed again, so that the air sucked into the second plug cylinder 48 can be squeezed into the chip blowing box 5 through the fourth connecting pipe 32 and sprayed out from the nozzle on the chip blowing box 5, so that the debris adhered to the surface of the cladding tube can be processed, thereby improving the subsequent rust prevention effect; Finally, the fan-shaped block 27 rotates 270 degrees clockwise. When the fan-shaped block 27 rotates 90 degrees clockwise, the second spring 29 is compressed to generate elastic force, which can make the second stopper 28 move toward the direction close to the axis of the servo motor 50 again, so that the air is sucked into the second plug cylinder 48 again. The fan-shaped block 27 continues to rotate clockwise until it rotates 270 degrees. The fan-shaped block 27 can make the third stopper 34 and the first stopper 25 move toward the direction close to the axis of the servo motor 50 successively. The movement of the third stopper 34 toward the direction close to the axis of the servo motor 50 will cause the fourth plug 42, the fourth connecting rod 43, the mounting plate 4, the processing block 14 and the lifting block 51 to move upward as a whole. By turning off the processing motor 52 and the fourth spring 54, the trapezoidal block 57 and the movable plate 7 can first move upward to support the cladding tube, and then the tension spring 16 can make the two clamping plates 53 move away from each other, so that the clamping of the cladding tube can be released. The movement of the first stopper 25 toward the direction close to the axis of the servo motor 50 will cause the fifth plug 47 and the support rod 44 to move downward, so that the movable plate 7 deflects downward to the initial state, and the treated cladding tubes will roll along the surface of the movable plate 7 into the anti-rust box 6 to remove the anti-rust agent for anti-rust treatment. During the rotation of the sector block 27, the lever 26 will rotate accordingly. Through the cooperation between the lever 26 and the toggle groove 24, the rotating disk 23, the rotating shaft 39 and the round block 38 can be rotated counterclockwise by a certain angle, so that the loading chamber 40 returns to the initial position, and this reciprocating process can be used to realize the treatment of the cladding tubes one by one.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A surface treatment device for stainless steel cladding for nuclear fuel, comprising a frame (1), characterized in that: An outer shell (9) is fixedly connected between the inner walls of both sides of the frame (1); a loading box (2) connected to the interior of the outer shell (9) is fixedly installed on the top of the outer shell (9); two second telescopic rods (55) are fixedly installed on the inner top of the frame (1); a trapezoidal block (57) located on one side of the outer shell (9) is fixedly installed on the top of the two second telescopic rods (55); a movable plate (7) is rotatably connected to the side wall of the trapezoidal block (57) at one end away from the outer shell (9); and a movable plate (7) is fixedly installed on the side wall of the trapezoidal block (57) at one end away from the outer shell (9). A fixed plate (45) is disposed below the movable plate (7), a collecting box (58) is disposed on the top of the fixed plate (45) and is located below the movable plate (7), a rust-proof box (6) is disposed on the side of the fixed plate (45) away from the trapezoidal block (57), a cover (11) is fixedly mounted on an outer wall of one side of the frame (1), a feeding assembly is disposed on the frame (1), a movable assembly connected to the feeding assembly is disposed on the fixed plate (45), a processing assembly connected to the feeding assembly is disposed on the frame (1), and a chip blowing assembly connected to the feeding assembly is disposed on the frame (1).

2. A surface treatment device for stainless steel cladding for nuclear fuel according to claim 1, characterized in that: The feeding assembly comprises a servo motor (50) fixedly mounted on the inner wall of one end of the cover body (11); the output shaft of the servo motor (50) is fixedly connected to a sector block (27); a chuck (33) is fixedly mounted on a side wall of the sector block (27) away from the servo motor (50); a rotating shaft (39) is rotatably connected between the inner walls of both sides of the frame body (1); a round block (38) close to the inner wall of the housing (9) is fixedly mounted on the outer wall of the rotating shaft (39); and the round block (38) is A loading cavity (40) is provided at the edge of the outer wall, a loading hole (41) is provided on the outer shell (9), one end of the rotating shaft (39) passes through an inner wall of one side of the frame (1) and is fixedly mounted with a rotating disk (23) located in the cover (11), the rotating disk (23) is matched with the chuck (33), a toggle groove (24) is provided on the rotating disk (23), and a toggle rod (26) matched with the toggle groove (24) is rotatably connected to a side wall of the sector block (27) close to the chuck (33).

3. A surface treatment device for stainless steel cladding for nuclear fuel according to claim 2, characterized in that: The movable assembly comprises a fourth plug cylinder (46) fixedly mounted on the bottom of a fixed plate (45), a support rod (44) penetrating the fixed plate (45) and slidably connected thereto, a fifth plug block (47) slidably connected to the inner wall of the fourth plug cylinder (46) fixedly mounted on the lower end of the support rod (44), a second connecting pipe (10) communicating with the interior of the fourth plug cylinder (46) being provided at the bottom of the fourth plug cylinder (46), a first plug cylinder (19) being fixedly mounted on the inner wall of one side of the cover body (11), a first connecting rod (21) slidably connected thereto penetrating one end of the first plug cylinder (19) close to the sector block (27), the first connecting rod (21) slidably connected thereto, the first connecting rod (21) A first stopper (25) abutting against the sector block (27) is fixedly mounted on one end of a connecting rod (21) located outside the first plug cylinder (19); a first spring (22) is fixedly connected between the first stopper (25) and the first plug cylinder (19); a first stopper (20) slidably connected to the inner wall of the first connecting rod (21) is fixedly mounted on one end of the first connecting rod (21) located inside the first plug cylinder (19); an end of the second connecting tube (10) away from the fourth plug cylinder (46) is connected to the first plug cylinder (19); and an end of the second connecting tube (10) connected to the first plug cylinder (19) is located on a side of the first plug block (20) away from the sector block (27).

4. A surface treatment device for stainless steel cladding for nuclear fuel according to claim 3, characterized in that: The processing assembly comprises a connecting plate (13) fixedly mounted between the inner walls of both sides of the frame (1); a rectangular cylinder (3) is fixedly mounted on the bottom of the connecting plate (13); a fourth connecting rod (43) is provided through the bottom of the rectangular cylinder (3) and is slidably connected thereto; a fourth plug (42) is fixedly mounted on the upper end of the fourth connecting rod (43) and is slidably connected to the inner wall of the rectangular cylinder (3); a mounting plate (4) is fixedly mounted on the lower end of the fourth connecting rod (43); a processing block (14) located above the trapezoidal block (57) is provided below the mounting plate (4); two first telescopic rods (15) fixedly mounted on the inner wall of the frame (1) are provided on both sides of the trapezoidal block (57); the two first telescopic rods (15) located on the same side of the trapezoidal block (57) are provided on the lower end of the fourth connecting rod (43); The telescopic ends of the retractable rods (15) are fixedly mounted with the same moving plate (17), a processing motor (52) is fixedly mounted on one side wall of the two moving plates (17) close to the trapezoidal block (57), a clamping plate (53) is fixedly mounted on the output shafts of the two processing motors (52), a touch rod (56) is fixedly mounted on one side wall of the two moving plates (17) away from the trapezoidal block (57), a lifting block (51) fixedly connected to the bottom of the mounting plate (4) is provided on one side of the two moving plates (17) away from the trapezoidal block (57), the two touch rods (56) are respectively abutted against the two lifting blocks (51), and a lifting plate (18) located below the lifting block (51) is fixedly mounted on the side walls at both ends of the trapezoidal block (57).

5. The surface treatment device for stainless steel cladding for nuclear fuel according to claim 4, characterized in that: A third plug cylinder (49) is fixedly mounted on the inner wall of one end of the cover body (11); a third connecting rod (36) is penetrated and slidably connected to the third plug cylinder (49) at one end close to the sector block (27); a third stopper (34) abutting against the sector block (27) is fixedly mounted on the end of the third connecting rod (36) located outside the third plug cylinder (49); a third spring (35) is fixedly connected between the third stopper (34) and the third plug cylinder (49); a third plug cylinder (37) is fixedly mounted on the end of the third connecting rod (36) located inside the third plug cylinder (49) and slidably connected to the inner wall thereof; a first connecting pipe (8) is arranged above the rectangular cylinder (3) and is connected to the interior thereof; an end of the first connecting pipe (8) away from the rectangular cylinder (3) is connected to the third plug cylinder (49); an end of the first connecting pipe (8) connected to the third plug cylinder (49) is located on a side of the third stopper (37) away from the sector block (27).

6. The surface treatment device for stainless steel cladding for nuclear fuel according to claim 5, characterized in that: The chip blowing assembly comprises a second plug barrel (48) fixedly mounted on the inner wall of the other side of the cover body (11); a second connecting rod (30) slidably connected to the second plug barrel (48) is provided through one end of the second plug barrel (48) close to the sector block (27); a second abutting block (28) abutting against the sector block (27) is fixedly mounted on one end of the second connecting rod (30) located outside the second plug barrel (48); a second spring (29) is fixedly connected between the second abutting block (28) and the second plug barrel (48); and a second connecting rod (30) is fixedly mounted on one end of the second connecting rod (30) located inside the second plug barrel (48) and a second spring (29) is fixedly mounted on one end of the second connecting rod (30) located inside the second plug barrel (48). A second plug block (31) is slidably connected to the wall, and the second plug tube (48) is provided with a third connecting tube (12) and a fourth connecting tube (32) which are connected to the interior thereof, and one end of the third connecting tube (12) and the fourth connecting tube (32) which are connected to the second plug tube (48) are both located on a side of the second plug block (31) away from the sector block (27), and a chip blowing box (5) is fixedly installed between the inner walls of both sides of the frame body (1) on a side of the trapezoidal block (57) away from the outer shell (9), and one end of the fourth connecting tube (32) which is away from the second plug tube (48) is connected to the chip blowing box (5).

7. A surface treatment device for stainless steel cladding for nuclear fuel according to claim 6, characterized in that: The lifting block (51) is provided with a slope, and both the third connecting pipe (12) and the fourth connecting pipe (32) are provided with a one-way valve.

8. A surface treatment method for a stainless steel cladding surface treatment device for nuclear fuel according to claim 7, characterized in that: The following steps are involved: In the first step, the output shaft of the servo motor (50) is rotated counterclockwise by 270 degrees, the movable plate (7) is deflected upward by a certain distance through the movable assembly, the cladding tube in the loading chamber (40) is rolled down to between the movable plate (7) and the trapezoidal block (57) through the feeding assembly, the cladding tube between the movable plate (7) and the trapezoidal block (57) is clamped and polished in sequence through the processing assembly, and the polished cladding tube is blown through the chip blowing assembly to blow away the residual debris on the surface; In the second step, the servo motor (50) is used to rotate its output shaft counterclockwise by 270 degrees, and the clamping of the polished cladding tube is released through the processing component. The other cladding tube in the loading box (2) is dropped into the loading chamber (40) through the feeding component, and the movable plate (7) is deflected downward to the initial state through the movable component, so that the polished cladding tube rolls into the anti-rust box (6).

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