Automatic cutting device and method for radioactive cylindrical part

Abstract

The automatic cutting device comprises a feeding mechanism, a positioning and clamping mechanism, an automatic cutting mechanism, a discharging mechanism and a control system, and full-automatic cutting treatment of the radioactive cylindrical part is achieved. And the feeding mechanism is matched with the L-shaped overturning table through the lifting appliance assembly, so that transfer and posture adjustment of the cylindrical part are achieved. The positioning and clamping mechanism is composed of a first sliding platform and a second sliding platform, the clamping distance can be adjusted, and it is ensured that the cylindrical part is stably fixed. The automatic cutting mechanism is arranged between the clamping mechanisms, and high-precision cutting is completed. The feeding mechanism controls feeding of the cutting section through the sliding platform, and waste materials and recoverable materials are automatically distinguished. The device adopts a composite three-jaw chuck and an automatic sawing machine for cutting, and is matched with a sliding rail platform system, so that the positioning precision and the cutting stability are improved. The shielding ventilation mechanism provides protection, reduces the radiation risk, and guarantees the operation safety.

Description

Technical Field

[0001] The present invention relates to the technical field of radioactive waste treatment, and particularly relates to an automatic cutting device and method for radioactive cylindrical parts. Background Art

[0002] In the process of nuclear chemical experiments and nuclear waste management, metal cylindrical parts are often used as reaction vessels or packaging containers for radioactive substances, such as glass solidification experiment containers, sealed source storage containers, etc. These cylindrical parts contain radioactive substances inside. When verifying experimental results or disposing of waste, it is usually necessary to cut and segment them for subsequent safe disposal or further analysis.

[0003] Currently, the cutting of radioactive cylindrical parts is mainly carried out in a manner similar to a vertical lathe. This method usually hoists the sealed container into the equipment by a crane, and adjusts the height of the turning tool using a lead screw, so that the turning tool rotates around the container and feeds to achieve single-pass cutting. However, this method has many limitations: First, the fixed tool disc limits the outer diameter range of the containers that can be cut and cannot be applied to cylindrical parts of various specifications; Second, the turning tool is relatively long and is easily affected by vibration, which affects the cutting stability, thus limiting the wall thickness range of the containers that can be cut. In addition, due to the rotation of the turning tool around the container and the low rotation speed, the cutting efficiency is low and it is difficult to meet the requirements of high-efficiency disposal.

[0004] In view of the above problems, the present invention is specifically proposed. Summary of the Invention

[0005] The present invention discloses an automatic cutting device and method for radioactive cylindrical parts, aiming to solve the technical problems existing in the prior art.

[0006] According to one aspect of the present invention, an automatic cutting device for radioactive cylindrical parts is provided, including: a feeding mechanism, a positioning and clamping mechanism, an automatic cutting mechanism, a discharging mechanism, and a control system;

[0007] The feeding mechanism includes an adjacent lifting tool assembly and an L-shaped turning table. The lifting tool assembly hoists the cylindrical part through vertical lifting and horizontal movement; the L-shaped turning table adjusts the vertical or horizontal posture of the cylindrical part through the reversal between horizontal and vertical.

[0008] The positioning and clamping mechanism includes a first sliding platform, a first slide rail, a second sliding platform, and a second slide rail. Both the first sliding platform and the second sliding platform are arranged on the first slide rail and move along the first slide rail to adjust the distance between the two to achieve clamping of the cylindrical part; the second slide rail is arranged between the second sliding platform and the first slide rail and is perpendicular to the first slide rail, and the second sliding platform can move along the direction of the second slide rail;

[0009] The automatic cutting mechanism is arranged between the first sliding platform and the second sliding platform for cutting;

[0010] The feeding mechanism includes a first storage barrel and a second storage barrel arranged below the first slide rail. The first storage barrel and the second storage barrel are placed in parallel, and the straight line where they are located is parallel to the direction of the second slide rail.

[0011] The second sliding platform moves along the first slide rail to the upper part of the feeding mechanism, and discharges the cut cylindrical parts into the first storage barrel or the second storage barrel by moving along the second slide rail.

[0012] The control system controls the automatic cutting process by presetting the parameters of each mechanism.

[0013] As a preferred technical solution, it further includes a shielding ventilation mechanism. The shielding ventilation mechanism is provided with a shielding layer, and the shielding layer is arranged on the inner wall of the shielding ventilation mechanism.

[0014] As a preferred technical solution, the shielding ventilation mechanism is further provided with a plurality of angle steel frames, and the angle steel frames are distributed at the corners of the shielding layer.

[0015] As a preferred technical solution, the shielding ventilation mechanism is further provided with a first inspection door and a second inspection door, which are respectively distributed on different sides of the shielding ventilation mechanism, close to the automatic cutting mechanism, and provide a path for replacing the saw blade of the automatic cutting mechanism.

[0016] As a preferred technical solution, both the first inspection door and the second inspection door adopt bevel butt joint lead layers.

[0017] As a preferred technical solution, the first sliding platform is provided with a three-jaw chuck and a chuck rotation assembly, and the second sliding platform is provided with a first chuck. The three-jaw chuck, the chuck rotation assembly and the first chuck are located in the same axis direction. The chuck rotation assembly drives the three-jaw chuck to rotate and the three jaws to move, and the first chuck rotates synchronously with the three-jaw chuck.

[0018] As a preferred technical solution, the first sliding platform is further provided with a second driving motor, which is connected to the chuck rotation assembly. The second driving motor drives the chuck rotation assembly to drive the three-jaw chuck to rotate and the three jaws to move, so as to clamp cylindrical parts of different sizes.

[0019] As a preferred technical solution, the first sliding platform is further provided with a first driving motor, which drives the first sliding platform to move along the first slide rail.

[0020] As a preferred technical solution, the second sliding platform is further provided with a fourth driving motor, which is connected to the first chuck, and controls the second platform to drive the first chuck to move along the first slide rail.

[0021] As a preferred technical solution, the second sliding platform is further provided with a third driving motor, and the third driving motor drives the second sliding platform to move along the second slide rail.

[0022] According to another aspect of the present invention, there is also provided a cutting method based on the above automatic cutting device, including:

[0023] According to the size of the cylindrical part, preset parameters for each mechanism through the control system;

[0024] Use the vertical lifting and moving of the sling assembly to lift the cylindrical part, horizontally move the cylindrical part above the L-shaped flipping table, and lower it so that the cylindrical part is placed on the L-shaped flipping table;

[0025] The L-shaped flipping table drives the cylindrical part to rotate at a right angle, changing its state from vertical to horizontal;

[0026] The three-jaw chuck fixes one end of the cylindrical part. According to the different required cutting positions, the first sliding platform drives the three-jaw chuck to slide along the first slide rail to adjust the position;

[0027] Adjust the second sliding platform to move along the first slide rail so that the first chuck clamps the other end of the cylindrical part;

[0028] The automatic cutting mechanism feeds downward and cuts;

[0029] Judge whether the cut section is waste:

[0030] If so, it is clamped by the first chuck. The second platform drives the first chuck to move above the second storage barrel under the drive of the fourth driving motor, and releases the first chuck so that the cut section falls into the second storage barrel;

[0031] If not, it is clamped by the first chuck. The second platform drives the first chuck to move above the first storage barrel under the drive of the fourth driving motor, and releases the first chuck so that the cut section falls into the first storage barrel.

[0032] The technical solution adopted by the present invention can at least achieve one of the following beneficial effects:

[0033] 1. By integrating the cylindrical part transfer and loading mechanism, automatic clamping and positioning mechanism, automatic cutting mechanism, segmented discharging mechanism, shielding and ventilation mechanism and control system, the present invention realizes full-process automatic operation. Each component of the device is connected to the industrial control device, can perform various types and forms of automatic cutting, and operates in a negative pressure environment, effectively reducing the risk of operators contacting radioactive substances and greatly improving the cutting efficiency and safety.

[0034] 2. The present invention uses a composite three-jaw chuck as the clamping and driving component, cooperates with an automatic sawing machine for cutting, and realizes precise positioning and stable clamping through the combined slide rail system of the first sliding platform and the second sliding platform. The device supports automatic adjustment of the cutting position, is applicable to radioactive cylindrical parts of different sizes and specifications, improves the stability and versatility of cutting, and ensures the accuracy and efficiency of the cutting process.

[0035] 3. The present invention adopts an intelligent segmented feeding mechanism. By controlling the second sliding platform to move along different trajectories, the cut segmented materials are automatically classified into different storage barrels according to waste and recyclables. This device only needs to be configured with corresponding industrial control programs, and can be applied to the disassembly and disposal of different types of radioactive cylindrical parts and radioactive waste, with a wide range of applications, strong adaptability and scalability. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. These drawings form a part of the present invention, and the schematic embodiments of the present invention and their descriptions explain the present invention without unduly limiting the present invention. In the drawings:

[0037] Figure 1 is a front view structural schematic diagram of an automatic cutting device for a radioactive cylindrical part of the present invention;

[0038] Figure 2 is a top view structural schematic diagram of an automatic cutting device for a radioactive cylindrical part of the present invention;

[0039] Figure 3 is a structural schematic diagram of the first sliding platform of the present invention;

[0040] Figure 4 is a structural schematic diagram of the second sliding platform of the present invention;

[0041] Figure 5 is a top view structural schematic diagram of the shielding ventilation mechanism of the present invention

[0042] Figure 6 is a left view structural schematic diagram of the shielding ventilation mechanism of the present invention.

[0043] Description of the reference numerals:

[0044] 1. Loading mechanism; 11. Hoisting component; 12. L-shaped turning table; 2. Positioning and clamping mechanism; 21. Clamping component; 22. First sliding platform; 221. Three-jaw chuck; 222. First driving motor; 223. Chuck rotation component; 224. Clutch; 225. Second driving motor; 23. First slide rail; 24. Second sliding platform; 241. First chuck; 242. Third driving motor; 243. Fourth driving motor; 25. Second slide rail; 3. Automatic cutting mechanism; 4. Feeding mechanism; 41. First storage barrel; 42. Second storage barrel; 5. Shielding ventilation mechanism; 51. Angle steel frame; 52. Feeding door; 53. Shielding layer; 54. First inspection door; 55. Second inspection door; 56. Hoisting tool replacement door; 57. Front view window; 58. Air filtration device; 6. Control system. Detailed implementation manners

[0045] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. In the description of the present invention, it should be noted that the term "or" is generally used in the sense of including "and / or", unless otherwise clearly specified in the context.

[0046] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, a magnetic connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0047] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0048] To solve the problems existing in the prior art, an automatic cutting device for radioactive cylindrical parts is provided in an embodiment of the present invention. As Figures 1 - 6 shown, it includes a feeding mechanism 1, a positioning and clamping mechanism 2, an automatic cutting mechanism 3, a discharging mechanism 4, a shielding and ventilation mechanism 5, and a control system 6 (not marked in the figure) to achieve full-automatic, safe and efficient cutting of radioactive cylindrical parts. The feeding mechanism 1 is used to transport the radioactive cylindrical parts to the cutting position; the positioning and clamping mechanism 2 is used to accurately position and clamp the cylindrical parts to ensure the cutting accuracy; the automatic cutting mechanism 3 is used to automatically cut the cylindrical parts, reduce manual intervention, reduce the risk of radiation exposure, and improve the cutting efficiency and accuracy; the discharging mechanism 4 is used to transport the cut workpieces or waste materials to the designated storage area; the shielding and ventilation mechanism 5 is used to provide shielding protection and air flow control during the cutting process to prevent the leakage of radioactive dust; the control system 6 is used to control the parameter settings of each mechanism, and by presetting the operating parameters of each mechanism, the automatic cutting of different workpieces is realized.

[0049] As Figure 1As shown in the figure, the loading mechanism 1 includes a lifting device assembly 11 and an L-shaped turning table 12. Both the lifting device assembly 11 and the L-shaped turning table 12 are arranged on the base of the automatic cutting device and are distributed adjacent to each other. The lifting device assembly 11 is arranged on one side of the base. By vertical lifting and horizontal movement, the radioactive cylindrical part is lifted and transported to the L-shaped turning table 12. There is a certain distance between the L-shaped turning table 12 and the lifting device assembly 11 in the horizontal direction. During loading, the lifting device assembly 11 retrieves the radioactive cylindrical part by vertical downward movement, and transports the radioactive cylindrical part above the L-shaped turning table 12 through vertical upward movement and parallel movement. By vertically lowering the lifting device assembly 11, the radioactive cylindrical part is placed on the L-shaped turning table 12. At this time, the radioactive cylindrical part is in a vertically placed state. The L-shaped turning table 12 can be turned between the horizontal and vertical directions, so as to adjust the radioactive cylindrical part from the vertically placed state to the horizontally placed posture, making it meet the subsequent cutting requirements.

[0050] Preferably, the lifting device assembly 11 is provided with a limiting device and a jacking device (not marked in the figure). The limiting device is arranged at the lower part of the lifting device assembly 11. When the storage barrel of the radioactive cylindrical part is transported to the lifting device assembly 11, it is limited by the limiting device. The jacking device lifts and horizontally moves the lifted radioactive cylindrical part. Preferably, the lifting device assembly 11 grabs the cylindrical part by means of a mechanical hoist or an electromagnetic chuck, accurately transports it under the guidance of the control system, and combines the feedback of the sensor to ensure stable grasping and avoid dropping or deviation. Further preferably, the lifting device assembly 11 is provided with a two-section telescopic boom (not marked in the figure). The boom is fixed on the frame in the form of a linear guide and can move up and down along the linear guide. The main body of the L-shaped turning table 12 is set as a semi-circular structure, and a jaw space is left on the side wall, which is responsible for receiving the cylindrical part from the lifting device assembly 11 and adjusting its posture through the turning mechanism, so that it changes from the vertical state to the horizontal state to adapt to the subsequent clamping and cutting processes. Through the cooperation of the lifting device assembly 11 and the L-shaped turning table 12, the full-automatic loading and posture adjustment of the radioactive cylindrical part are realized, avoiding manual intervention, reducing the radiation exposure risk of the operators, ensuring that the cylindrical part is in the best posture before entering the positioning and clamping mechanism 2, improving the accuracy and stability of the subsequent processes, and enhancing the production efficiency and reducing the human error, thereby improving the cutting quality and the automation degree and safety of the equipment.

[0051] As Figures 2 - 4As shown in the figure, the positioning and clamping mechanism 2 includes a clamping assembly 21, a first sliding platform 22, a first slide rail 23, a second sliding platform 24 and a second slide rail 25, which are used to accurately position and clamp the radioactive cylindrical part to ensure the stability and accuracy of the cutting process. The clamping assembly 21 is installed on the first sliding platform 22, and the first sliding platform 22 can move along the first slide rail 23, enabling the workpiece to be accurately adjusted between different cutting positions to adapt to cylindrical parts of different specifications. The first slide rail 23 is arranged on the base of the positioning and clamping mechanism 2, providing stable moving support for the first sliding platform 22 and the second sliding platform 24. The second sliding platform 24 is installed in parallel with the first sliding platform 22 on the first slide rail 23 and can move independently. A clamping device is provided thereon to support and clamp the other end of the cylindrical part to prevent the workpiece from shaking or shifting during the cutting process. During the positioning operation, after the L-shaped turning platform 12 adjusts the radioactive cylindrical part to a horizontal posture and horizontally moves it to a specific position, the clamping assembly 21 extends, clamps the radioactive cylindrical part, and then retracts to the axis of the radioactive cylindrical part to be coaxial with the first sliding platform 22.

[0052] As Figure 3 As shown in the figure, the first sliding platform 22 is provided with a three-jaw chuck 221, a first driving motor 222, a chuck rotating assembly 223, a clutch 224 and a second driving motor 225, which are used to clamp and rotate the radioactive cylindrical part to ensure the stability and accuracy of the cutting process. The three-jaw chuck 221 is fixedly installed at one end of the first sliding platform 22 away from the L-shaped turning platform 12, and is used to clamp and fix the bottom of the radioactive cylindrical part to keep it stable during the cutting process. The first driving motor 222 is installed at the bottom of the first sliding platform 22. The second driving motor 225 and the three-jaw chuck 221 are installed on the same axis, and a chuck rotating assembly 223 is also arranged between the second driving motor 225 and the three-jaw chuck 221. The first driving motor 222 is used to control the movement of the first sliding platform 22 along the first slide rail 23, so as to accurately position and realize cutting at different positions of the radioactive cylindrical part; the second driving motor 225 drives the chuck rotating assembly 223 to drive the three-jaw chuck 221 to rotate and perform three-jaw movement to realize automatic clamping of radioactive cylindrical parts of different sizes. Preferably, the second driving motor 225 adopts a servo motor to meet the operation requirements of stopping rotation cutting, indexing cutting and rotary cutting of radioactive cylindrical parts. A clutch 224 is also arranged between the second driving motor 225 and the chuck rotating assembly 223. The clutch 224, as a power splitting mechanism, enables the three-jaw chuck 221 to realize automatic clamping and rotation through coaxial transmission under the drive of the second driving motor 225.

[0053] As Figure 4As shown, the second sliding platform 24 is provided with a first chuck 241, a third driving motor 242 and a fourth driving motor 243, which are used to assist in clamping the other end of the radioactive cylindrical part to ensure its stability during the cutting process and prevent shaking or deviation. The first chuck 241 is installed at one end of the second sliding platform 24 close to the first sliding platform 22, and is arranged opposite to the three-jaw chuck 221, and realizes the clamping and fixing of the radioactive cylindrical part through the cooperation with the three-jaw chuck 221. Preferably, the first chuck 241 can rotate following the chuck rotation assembly 223. The fourth driving motor 243 is connected to the first chuck 241 and is used to control the second sliding platform 24 to move along the first slide rail 23 in its track direction to approach or move away from the first sliding platform 22. The second sliding platform 24 is installed on the second slide rail 25, and both are installed above the first slide rail 23. The second slide rail 25 is perpendicular to the first slide rail 23. A third driving motor 242 is arranged on the second sliding platform 24, which is used to drive the second sliding platform 24 to move along the direction of the second slide rail 25, so as to classify and place the cut radioactive cylindrical parts in different storage barrels. Preferably, the second slide rail 25 is arranged in a form with a rack on one side and a guide rail on the other side, so that the second sliding platform 24 can maintain accurate linear guidance during the movement and can be stably driven through the meshing of the gear and the rack.

[0054] As Figure 1 and Figure 5 shown, the automatic cutting mechanism 3 is arranged on the first slide rail 23, between the first sliding platform 22 and the second sliding platform 24. The automatic cutting mechanism 3 adopts a metal automatic sawing machine. The automatic cutting mechanism 3 is provided with a hydraulic feeding part, a wire-pulling sensor and a fourth driving motor (not marked in the figure). When the automatic cutting mechanism 3 cuts, the hydraulic feeding part feeds downward, and its cutting position can be controlled by the data transmitted back by the wire-pulling sensor to control the cutting depth and realize quantitative depth cutting; at the same time, the fourth driving motor automatically adjusts the cutting speed to realize speed-adjustable cutting.

[0055] As Figure 2 shown, the feeding mechanism 4 is provided with a first storage barrel 41 and a second storage barrel 42 placed in parallel. The linear direction formed by the first storage barrel 41 and the second storage barrel 42 is parallel to the track direction of the second slide rail 25, and both are arranged below the first slide rail 23. When feeding, the third driving motor 242 drives the second sliding platform 24 to move along the direction of the second slide rail 25, and classifies and places the cut radioactive cylindrical parts in the first storage barrel 41 or the second storage barrel 42 to realize the automatic classification of different types of parts after cutting.

[0056] During the feeding operation, after a certain section of the radioactive cylindrical part is cut by the automatic cutting mechanism 3, this section is in a state of being clamped by the first chuck 241 and separated from the main body. At this time, the second sliding platform 24 is horizontally moved to the rear limit position under the drive of the fourth driving motor 243. When the first chuck 241 is released, this cut section automatically falls into the second storage barrel 42, realizing the automatic classification and collection of waste materials. If the cut part is recyclable, the second sliding platform 24 continues to move horizontally to the rear limit and is moved above the first storage barrel 41 under the drive of the fourth driving motor 243. When the first chuck 241 is released, this section automatically falls into the first storage barrel 41, realizing the storage of recyclable materials. For the main body section that has completed the final cutting, the first sliding platform 22 is moved above the second storage barrel 42 under the drive of the second driving motor 225. When the three-jaw chuck 221 is released, the main body section automatically falls into the second storage barrel 42, thus completing the automatic classification and placement of the entire cutting waste.

[0057] As Figure 5 and Figure 6 shown, the shielding ventilation mechanism 5 includes an angle steel frame 51, a feed door 52, a shielding layer 53, a first inspection door 54, and a second inspection door 55, which are used for radiation protection and air flow control during the cutting process of the radioactive cylindrical part, ensuring the safety of the operator and preventing the spread of pollution. The angle steel frame 51 constitutes the overall support structure of the shielding ventilation mechanism 5, providing stable frame support. Preferably, multiple angle steel frames 51 are used and are respectively arranged at the corners of the shielding layer 53 as the outer skeleton of the shielding layer 53 to ensure the firm and reliable structure of the shielding layer 53. Further preferably, the angle steel frame 51 is also arranged at the first inspection door 54 and the second inspection door 55 as their fixed frames. The feed door 52 is arranged above the shielding ventilation mechanism 5 and has a circular structure, which is used to send the radioactive cylindrical part into the working area before cutting and has a sealing function to prevent radiation leakage. The shielding layer 53 covers the inner side wall of the shielding ventilation mechanism 5, effectively blocking radioactive radiation and ensuring the safety of the operating environment. The first inspection door 54 and the second inspection door 55 are respectively arranged on different sides of the shielding ventilation mechanism 5, close to the automatic cutting mechanism 3, and are used for equipment maintenance and cleaning. The inspection doors are equipped with a sealing and locking device to ensure airtightness in the non-operating state. Preferably, both the first inspection door 54 and the second inspection door 55 adopt a beveled butt joint lead layer to ensure no penetration. At the same time, the first inspection door 54 and the second inspection door 55 are set as the saw blade replacement path of the automatic cutting mechanism 3. When replacing the saw blade, open the second inspection door 55, loosen the saw blade, open the first inspection door 54, take out the saw blade, and draw it out from the second inspection door 55. When installing a new saw blade, insert it through the first inspection door 54 and install it on both sides of the automatic cutting mechanism 3 at the same time.

[0058] Through the above structural design, the combination of the lifting tool assembly 11 and the L-shaped turning table 12 is adopted to realize the automatic feeding and attitude adjustment of the cylindrical part, so that it is converted from a vertical state to a horizontal state to meet the subsequent processing requirements; the first sliding platform 22 and the second sliding platform 24 are matched, and through the bidirectional movement of the first slide rail 23 and the second slide rail 25, the precise positioning and clamping of the workpiece are realized. The second slide rail 25 is set as a structure with a rack on one side and a guide rail on the other side to ensure the precise movement and stable transmission of the platform; a double clamping structure of the three-jaw chuck 221 and the first chuck 241 is adopted, which is jointly controlled by the first driving motor 222, the second driving motor 225, the third driving motor 242 and the fourth driving motor 243 to ensure the stability of the cylindrical part during the cutting process and support various cutting modes such as stop-turn cutting, indexing cutting and rotary cutting; the discharging mechanism 4 is provided with a first storage barrel 41 and a second storage barrel 42, and combined with the lateral movement of the second sliding platform 24, the automatic classification and recycling of the cut parts and waste are realized, reducing manual intervention and improving radioactive safety; the shielding ventilation mechanism 5 includes components such as an angle steel frame 51, a feeding door 52, a shielding layer 53, a first inspection door 54, a second inspection door 55, etc., which provides shielding protection and air flow control to prevent the leakage of radioactive dust. The activities of the above-mentioned various mechanisms are all preset parameters in advance through the control system 6 to realize the automatic cutting process of different workpieces. In the embodiment of the present invention, through the coordinated cooperation of each mechanism and the setting and control of the control system, the automatic feeding, precise positioning, stable cutting, automatic discharging and radiation shielding of the radioactive cylindrical part are realized, reducing manual operation, improving production efficiency, reducing the risk of radioactive exposure, and enhancing the automation level and safety of the equipment.

[0059] In some preferred embodiments, such as Figure 2 shown, an air filtration device 58 is further provided in the shielding ventilation mechanism 5 to realize negative pressure ventilation. Preferably, the air filtration device adopts a tube inlet air purification box, a metal mesh pre-filter or a tube exhaust air purification box. Further preferably, a multi-stage metal mesh filter is installed before the air filtration device to prevent the air filter from being blocked or damaged due to metal debris or fine metal particles contained in the cutting dust during the cutting process.

[0060] In some preferred embodiments, a stainless steel plate decorative layer is installed on the outer side of the angle steel frame 51, which can not only decorate the overall device, but also further enhance its shielding effect.

[0061] In some preferred embodiments, the shielding ventilation mechanism 5 further includes a lifting tool replacement door 56. The lifting tool replacement door 56 is installed on the side of the shielding ventilation mechanism 5 for replacing the lifting tool or adjusting the equipment, and has protective measures to prevent radiation leakage. Preferably, the lifting tool replacement door 56 uses a lead cover supplementary block as shielding.

[0062] In some preferred embodiments, the shielding ventilation mechanism 5 further includes a front viewing window 57, which is located at the front end of the shielding ventilation mechanism 5, facilitating the operator to observe the internal working state. Meanwhile, it is made of radiation protection materials to provide safety guarantee for visual monitoring. Preferably, the front viewing window 57 is made of lead glass with equivalent shielding thickness.

[0063] The embodiment of the present invention also provides a method for cutting radioactive cylindrical parts by using the above automatic cutting device, including the following steps:

[0064] Step S1: According to the size of the target radioactive cylindrical part, preset the parameters of the feeding mechanism 1, the positioning and clamping mechanism 2, the automatic cutting mechanism 3, the discharging mechanism 4 and the shielding ventilation mechanism 5 through the control system 6;

[0065] Step S2: Transfer the radioactive cylindrical part to the feeding mechanism 1;

[0066] Step S21: Transfer of the radioactive cylindrical part;

[0067] Place the radioactive cylindrical part in the storage barrel, use the barrel carrier to transport the storage barrel to the fixed position below the lifting tool assembly 11; after the lifting tool assembly 11 lifts the radioactive cylindrical part, the barrel carrier transfers the storage barrel away and repeats the above actions;

[0068] Step S22: Hoisting of the radioactive cylindrical part;

[0069] Open the feed door 52, lower the suspension rod of the lifting tool assembly 11 to the hoisting hole position of the radioactive cylindrical part, drive the clamp (not shown in the figure) provided on the lifting tool assembly 11 to clamp the radioactive cylindrical part through a motor (not shown in the figure); drive the lifting tool assembly 11 to move upward to the set position; drive the lifting tool assembly 11 to move horizontally above the L-shaped turning platform 12; drive the lifting tool assembly 11 to move downward so that the bottom of the lifting tool assembly 11 contacts the bottom of the L-shaped turning platform 12, release the clamp, and the suspension rod returns to its original position; close the feed door 52;

[0070] Step S23: Feeding of the radioactive cylindrical part;

[0071] After the L-shaped turning platform 12 receives the radioactive cylindrical part, it rotates at a right angle, so that the radioactive cylindrical part changes from the vertical placement state to the horizontal placement state;

[0072] Step S3: Automatically clamp and position the radioactive cylindrical part;

[0073] Step S31: The clamping assembly 21 extends under the control of the control system, clamps the radioactive cylindrical part, and then retracts to the axis position of the radioactive cylindrical part, being coaxial with the first sliding platform 22.

[0074] Step S32: One end of the radioactive cylindrical part is fixed by the three-jaw chuck 221. According to different required cutting positions, the first sliding platform 22 drives the three-jaw chuck 221 to slide along the first slide rail 23 to adjust the position; the position of the second sliding platform 24 is adjusted so that the first chuck 241 clamps the other end of the radioactive cylindrical part;

[0075] Step S4: Cutting of the radioactive cylindrical part;

[0076] After the radioactive cylindrical part is fixed, the hydraulic feeding part of the automatic cutting mechanism 3 feeds downward, the automatic cutting mechanism 3 performs cutting, and automatically retracts the tool after cutting is completed;

[0077] Step S5: Discharging of the radioactive cylindrical part after cutting; It is judged manually whether the cut section after cutting is waste. If so, go to Step S51; if not, go to Step S52.

[0078] Step S51: Automatic collection of waste;

[0079] After the automatic cutting mechanism 3 finishes cutting, the cut section is clamped by the first chuck 241 and separated from the main body. The second sliding platform 24 is horizontally moved to the rear limit position under the drive of the fourth driving motor 243. After the first chuck 241 is released, this section automatically falls into the second storage barrel 42 to realize the classified collection of waste;

[0080] Step S52: Storage of recyclable materials;

[0081] If the cut section is recyclable, the second sliding platform 24 continues to move horizontally above the first storage barrel 41, moves to the specified position under the drive of the fourth driving motor 243, and after the first chuck 241 is released, this section automatically falls into the first storage barrel 41 to complete the storage of recyclable materials.

[0082] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the purpose of the present invention and the scope protected by the claims, and all belong to the protection scope of the present invention.

Claims

1. An automatic cutting device for radioactive cylindrical parts, characterized in that: include: Feeding mechanism, positioning and clamping mechanism, automatic cutting mechanism, unloading mechanism and control system; The feeding mechanism comprises adjacent sling assemblies and an L-shaped turning platform, wherein the sling assemblies lift the cylindrical member by vertical lifting and horizontal movement; and the L-shaped turning platform adjusts the vertical or horizontal posture of the cylindrical member by reversing between horizontal and vertical. The positioning and clamping mechanism comprises a first sliding platform, a first sliding rail, a second sliding platform and a second sliding rail. The first sliding platform and the second sliding platform are both arranged on the first sliding rail and move along the first sliding rail to adjust the distance between the two so as to clamp the cylindrical member. The second sliding rail is arranged between the second sliding platform and the first sliding rail and is perpendicular to the first sliding rail. The second sliding platform can move along the direction of the second sliding rail. The automatic cutting mechanism is arranged between the first sliding platform and the second sliding platform for cutting; The material discharging mechanism comprises a first storage bucket and a second storage bucket arranged below the first slide rail, the first storage bucket and the second storage bucket are placed in parallel, and the straight line where they are located is parallel to the direction of the second slide rail; The second sliding platform moves along the first sliding rail to above the discharge mechanism, and discharges the cut cylindrical parts into the first storage bucket or the second storage bucket by moving along the second sliding rail; The control system controls the automatic cutting process by presetting parameters of the various mechanisms.

2. The automatic cutting device according to claim 1, characterized in that: It also includes a shielding ventilation mechanism, wherein the shielding ventilation mechanism is provided with a shielding layer, and the shielding layer is arranged on the inner wall of the shielding ventilation mechanism.

3. The automatic cutting device according to claim 2, characterized in that: The shielding and ventilation mechanism is also provided with a plurality of angle steel frames, and the angle steel frames are distributed at the corners of the shielding layer.

4. The automatic cutting device according to claim 2, characterized in that: The shielding and ventilation mechanism is also provided with a first inspection door and a second inspection door, which are respectively distributed on different sides of the shielding and ventilation mechanism and close to the automatic cutting mechanism to provide a path for replacing the saw blade of the automatic cutting mechanism.

5. The automatic cutting device according to claim 4, characterized in that: The first inspection door and the second inspection door both adopt an oblique joint lead layer.

6. The automatic cutting device according to claim 1, characterized in that: The first sliding platform is provided with a three-jaw chuck and a chuck rotating assembly, and the second sliding platform is provided with a first chuck. The three-jaw chuck, the chuck rotating assembly and the first chuck are located in the same axial direction. The chuck rotating assembly drives the three-jaw chuck to rotate and the three jaws to move, and the first chuck cooperates with the three-jaw chuck to rotate with it.

7. The automatic cutting device according to claim 6, characterized in that: The first sliding platform is also provided with a second driving motor connected to the chuck rotating assembly. The second driving motor drives the chuck rotating assembly to drive the three-jaw chuck to rotate and move the three-jaws to achieve clamping of cylindrical parts of different sizes.

8. The automatic cutting device according to claim 7, characterized in that: The first sliding platform is also provided with a first driving motor for driving the first sliding platform to move along the first sliding rail.

9. The automatic cutting device according to claim 6, characterized in that: The second sliding platform is also provided with a fourth driving motor connected to the first clamping head, and controls the second platform to drive the first clamping head to move along the first sliding rail.

10. The automatic cutting device according to claim 1, characterized in that: The second sliding platform is also provided with a third driving motor, and the third driving motor drives the second sliding platform to move along the second sliding rail.

11. A cutting method based on the automatic cutting device according to any one of claims 1 to 10, characterized in that: include: According to the size of the cylindrical member, parameters of each mechanism are preset through the control system; The cylindrical member is lifted by vertically lifting the lifting device assembly, and the cylindrical member is horizontally moved to above the L-shaped turning table, and then moved downward so that the cylindrical member is placed on the L-shaped turning table; The L-shaped turning table drives the cylindrical member to rotate at a right angle, so that it changes from a vertical state to a horizontal state; The three-jaw chuck fixes one end of the cylindrical member, and the first sliding platform drives the three-jaw chuck to slide along the first sliding rail to adjust the position according to different required cutting positions; adjusting the second sliding platform to move along the first sliding rail so that the first clamping head clamps the other end of the cylindrical member; The automatic cutting mechanism feeds downward and cuts; Determine whether the cut segment is waste: If so, the first clamp is clamped, and the second platform is driven by the fourth driving motor to drive the first clamp to move to the top of the second storage bucket, and the first clamp is released, so that the cut section is placed in the second storage bucket; If not, the first clamp is clamped, and the second platform, driven by the fourth driving motor, drives the first clamp to move above the first storage bucket, and releases the first clamp to allow the cut section to enter the first storage bucket.

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