Target piece cladding disassembling device and method

Abstract

The invention provides a target piece cladding disassembling device and method, relates to the field of special operation robots, and aims to solve the problem that electric cutting equipment corresponding to a current special operation robot is easy to damage in a strong radiation hot chamber, air driving and mechanical transmission are adopted, the influence of electronic elements on the equipment is reduced, the service life of the equipment in the hot chamber is prolonged, and the working efficiency is improved. The shutdown risk and the scrap cost caused by equipment faults are reduced, the positioning plate controls the needling depth, overcutting is effectively prevented, the damage of internal expensive target materials and the diffusion risk of radioactive dust are reduced, the slider-crank mechanism conducts high-frequency reciprocating needling under the action of the airflow driving impeller, compared with rotary grinding wheel cutting, generated heat is less, and the needling efficiency is improved. And metal debris particles generated by dotted puncture are larger and are not easy to fly, so that the cleanness of the hot cell environment is more favorably kept.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of special operation robots, and particularly relates to a target plate cladding disassembling device and method. BACKGROUND

[0002] At present, radioactive isotopes are artificially manufactured through accelerator production, reactor production and isotope generator production, etc. Among them, the accelerator production of radioactive isotopes is to use high-energy beam generated by an accelerator to bombard various target materials to obtain target nuclides. The target materials are divided into solid target materials and liquid target materials, wherein the raw materials of the solid target materials are mostly in powder form. In order to facilitate the target shooting, the raw materials need to be made into target plates or packaged in metal cladding according to the target shooting process and the properties of the raw materials of the target materials. For the target plates packaged in the metal cladding, the target materials need to be taken out from the metal cladding before the target nuclides are extracted. The thickness of the general metal cladding is 0.1-0.2 mm, and after the target shooting, the metal cladding has a relatively high radiation dose, so the metal cladding can only be broken by remote operation, so as to take out the internal target materials.

[0003] When the cladding is broken, a hot cell operation robot needs to be used for remote operation. Because the hot cell is radioactive, the electronic elements of the electrically driven hot cell operation robot and the driving cutting tool are easily damaged by radiation. After the radiation damage, it is not convenient to repair, and only scrap processing is available, which increases the scrap cost. However, in the process of breaking the cladding by using the hot cell operation robot to control the cutting tool in the prior art, when the metal cladding is cut, small metal chips or turned burrs will inevitably be generated. Since the operator is outside the hot cell, only a lead glass observation window or a radiation-resistant camera can be used for limited-distance observation with a limited field of view. The chips accumulated near the cutting edge are easy to block the cutting trajectory and the actual cutting position of the tool. The shielding of the field of view leads to the inability to accurately judge the cutting depth in real time. In order to ensure that the cladding is completely cut, a larger feed amount is often applied, which easily leads to the phenomenon of “overcutting”, that is, the tool continues to penetrate the cladding and directly cuts the internal fragile target material. Once the target material is damaged, it will often be suspended and diffused in the form of radioactive dust or aerosol particles into the hot cell. Not only does it bring serious safety hazards to the cleaning and subsequent maintenance and repair of the hot cell, but also the high-radioactivity dust will enter the filter device through the exhaust system, causing the filter to have a large load and a short service life, thereby significantly increasing the production and operation cost. SUMMARY

[0004] Therefore, the present application provides a target plate cladding disassembling device and method, which uses a pneumatic reciprocating motion structure to drive a needle-shaped tool to perform special operation in a radiation environment, reduces the damage of radiation to the disassembling device, and reduces the influence of overcutting.

[0005] A first object of the present application is to provide a target plate cladding disassembling device, which adopts the following scheme: include: The base has an air chamber inside, and an impeller is rotatably installed inside the air chamber. The base has an air inlet and an air outlet that connect to the air chamber, so that the airflow is input to drive the impeller to rotate and then the airflow is discharged. The tool holder is slidably mounted on the base. One end of the tool holder is hinged to a connecting rod, and the other end can be detachably mounted with a needle-punching tool. The end of the connecting rod away from the tool holder is rotatably connected to a pin eccentrically mounted on the end face of the impeller, forming a crank-slider mechanism to drive the needle-punching tool to reciprocate along the axis. The positioning plate is adjustable and mounted on the base. The positioning plate has a positioning part that abuts against the workpiece. The needle-piercing tool can extend out of the positioning part to pierce the workpiece.

[0006] Furthermore, a guide element is installed on the substrate, and a guide hole is formed in the guide element. The tool holder is coaxially and slidably installed in the guide hole.

[0007] Furthermore, the needle-piercing tool is detachably mounted on the tool holder, and the shank of the needle-piercing tool is installed in a preset mounting hole in the tool holder to transmit axial force and is constrained in position by a pin.

[0008] Furthermore, a guide seat is installed on the base, and a positioning plate slides in conjunction with the guide seat. A locking element is fitted on the guide seat to lock the relative position of the guide seat and the positioning plate, or to unlock the positioning plate relative to the guide seat to adjust the position and change the length of the needle-piercing tool protruding from the positioning part.

[0009] Furthermore, the positioning plate is a U-shaped bent plate composed of two vertical plates and a horizontal plate. The two vertical plates slide and cooperate with the guide seats installed on both sides of the base. The vertical plates extend the horizontal plate out of the base. The horizontal plate serves as the positioning part and has a through hole for the needle-piercing tool to pass through.

[0010] Furthermore, the substrate includes a base plate and a cover plate, and the cover plate and the base plate are respectively provided with grooves for accommodating the impeller. The cover plate and the base plate are fastened together so that the grooves are combined to form an air chamber. The impeller rotates in conjunction with the wheel shaft, and the wheel shaft is fixed to the base plate.

[0011] Furthermore, the exhaust port is connected to one end of the exhaust pipe, and the other end of the exhaust pipe is directed toward the workpiece position punctured by the needle-punching tool, so as to blow away the punctured area.

[0012] Furthermore, control valves are installed at the exhaust port and the air inlet respectively.

[0013] A second objective of this invention is to provide a target casing removal method, utilizing the target casing removal device as described in the first objective, comprising: Move the device above the target piece so that the positioning part of the positioning plate is in close contact with the surface of the target piece casing, and adjust the positioning plate to determine the cutting depth; Compressed air is introduced into the gas inlet of the base, and the airflow enters the gas chamber to rotate the impeller; the rotating movement of the impeller drives the eccentric pin shaft of the end surface to rotate, the eccentric pin shaft drives the connecting rod to swing, and the connecting rod further drags the tool holder to slide linearly on the base, so that the bayonet cutter installed at the front end of the tool holder produces reciprocating extension and retraction action along the axial direction; With the reciprocating movement of the bayonet cutter, the needle tip periodically protrudes out of the positioning plate and pierces the target shell; at the same time, the control device moves along the predetermined cutting trajectory, thereby forming continuous cuts or cracks on the shell, and performing special operations in a radiation environment.

[0014] Further, after the airflow drives the impeller to rotate and work, the exhaust gas in the gas chamber is guided and sprayed to the needle piercing area where the needle piercing cutter contacts the workpiece through the exhaust port, thereby cleaning the waste generated by the needle piercing.

[0015] Compared with the prior art, the present application has the advantages and positive effects that: In view of the problem that the existing special operation robot corresponding electric cutting equipment is easily damaged in a strong radiation hot chamber, the present application adopts air driving and mechanical transmission to perform special operations in a radiation environment, thereby reducing the influence of electronic components on the equipment, prolonging the service life of the equipment in the hot chamber, reducing the risk of downtime and scrap cost caused by equipment failure, controlling the needle piercing depth by the positioning plate, effectively preventing overcutting, reducing the damage of expensive internal target materials and the diffusion risk of radioactive dust, and high-frequency reciprocating needle piercing by the crank slider mechanism under the action of the airflow driven impeller, which generates less heat compared with rotary grinding wheel cutting, and the metal debris particles generated by pointwise puncture are larger and less likely to fly, which is more conducive to the cleaning of the hot chamber environment.

[0016] By combining the exhaust port with the exhaust pipe, a gas flow guide path is formed, so that the exhaust gas discharged from the gas chamber can be effectively utilized. One end of the exhaust pipe is connected to the exhaust port, and the other end is directed to the position where the needle piercing cutter contacts the workpiece, so that the airflow is directly applied to the cut generation point. Not only is the random loss of airflow avoided, but also the metal debris and burrs near the cut are effectively removed by the impact of the airflow, meeting the needs of special operations. In addition, the continuous airflow blowing maintains the cleanliness of the working interface, eliminates the obstruction of the operator's vision caused by the debris, thereby ensuring the real-time monitoring of the cutting depth and avoiding the risk of overcutting caused by unclear vision. Under the overall framework of the above target shell disassembly device, the functionality and operation safety of the device are improved by effectively utilizing the airflow. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application, serve to explain the application, and do not constitute an improper limitation on the application.

[0018] Figure 1A structural schematic diagram of a target piece can enclosure disassembling device in one or more embodiments of the present application.

[0019] Figure 2 A structural schematic diagram of a target piece can enclosure disassembling device in one or more embodiments of the present application.

[0020] Figure 3 A structural schematic diagram of a target piece can enclosure disassembling device in one or more embodiments of the present application.

[0021] Figure 4 A structural schematic diagram of a target piece can enclosure disassembling device in one or more embodiments of the present application.

[0022] Figure 5 A structural schematic diagram of a target piece can enclosure disassembling device in one or more embodiments of the present application.

[0023] Figure 6 A structural schematic diagram of a target piece can enclosure disassembling device in one or more embodiments of the present application.

[0024] Wherein, 1, cover plate; 2, locking piece; 3, tool holder; 4, needle punch tool; 5, positioning plate; 6, guide seat; 7, exhaust port; 8, bottom plate; 9, air inlet; 10, connecting rod; 11, pin; 12, circlip; 13, guide element; 14, hole ear plate; 15, shaft pin; 16, bearing; 17, impeller; 18, metal groove; 19, metal film; 20, target material. DETAILED DESCRIPTION

[0025] Embodiment 1 In a typical embodiment of the present application, as shown in Figures 1-6 , a target piece can enclosure disassembling device is given.

[0026] Due to the high radiation environment in the hot cell, the traditional electrically driven cutting equipment is extremely fragile, and the electronic components are prone to failure due to radiation damage, and there is also the problem of debris generated during disassembly blocking the cutting trajectory, based on this, the present embodiment provides a target piece can enclosure disassembling device, as a special operation robot, through the impeller 17 and the air chamber to build a pneumatic driving element, drive the crank slider mechanism reciprocating motion to make the needle punch tool 4 needle punch the target piece can enclosure, avoid the influence of radiation on electronic components, make the target piece can enclosure can be safely disassembled, overcome the problem that the traditional operation robot is easy to be affected by radiation and damage the electronic components.

[0027] The target material 20 is formed into a target piece by powder sheet, and the target piece can enclosure is made of thin metal through machining and welding process, so as to ensure that the target material 20 placed in it is not affected by external water and air. As Figure 5 and Figure 6As shown, the target piece shell is welded by a metal groove 18 and a metal film 19, the metal groove 18 is a box type structure with a groove body, filled with target material 20 inside, and the top opening is covered by the metal film 19 and welded into one. After the target shooting is completed, the target material 20 needs to be completely taken out from the target piece shell, the contact width of the metal groove 18 and the metal film 19 is only 1mm, the present embodiment pierces the metal film 19 and the metal groove 18 at the joint by the needle knife 4, and continuously pierces along the four edges of the metal film 19, so as to separate the metal film 19 and the metal groove 18, remove the metal film 19, and take out the target material 20 in the metal groove 18.

[0028] As shown in the embodiment, Figure 1 , Figure 2 The target piece shell disassembling device mainly includes a base body, a knife holder 3 and a positioning plate 5. The base body is internally formed with an air chamber, a vane 17 is rotatably installed in the air chamber, and an air inlet 9 and an air outlet 7 are formed on the base body to communicate with the air chamber, so as to input the airflow to drive the vane 17 to rotate and then discharge the airflow; the knife holder 3 is slidably installed on the base body, one end of the knife holder 3 is hingedly connected to a connecting rod 10, and the other end of the knife holder 3 is detachably installed with a needle knife 4; the connecting rod 10 is rotatably connected to a pin shaft eccentrically installed on the end face of the vane 17, forming a crank slider mechanism to drive the needle knife 4 to reciprocate along the axis; and the positioning plate 5 is adjustably installed on the base body, the positioning plate 5 is formed with a positioning portion abutting against the workpiece, and the needle knife 4 can protrude out of the positioning portion to pierce the workpiece.

[0029] By combining pneumatic driving and piercing mechanism, the problem of unable to accurately control the cutting depth due to metal debris blocking the line of sight in the remote operation of the hot cell is solved. Pneumatic driving avoids the risk of electric driving tools being easily damaged in the radiation environment, and the reciprocating motion of the needle knife 4 reduces the accumulation of debris generated by continuous cutting, so that the operator can observe the piercing position more clearly. In addition, through the adjustable installation of the positioning plate 5, the accurate control of the protruding length of the needle knife 4 is realized, and the overcut phenomenon is prevented, so as to effectively protect the internal target material 20 from being damaged.

[0030] The base body is internally formed with an air chamber, a vane 17 is rotatably installed in the air chamber, and an air inlet 9 and an air outlet 7 are formed on the base body to communicate with the air chamber. When the compressed airflow is input into the air chamber through the air inlet 9, the airflow impacts the vane 17 and drives it to rotate, and the rotated airflow is discharged through the air outlet 7. Among them, the end face of the vane 17 is eccentrically installed with a pin shaft, the pin shaft is rotatably connected to one end of the connecting rod 10, and the other end of the connecting rod 10 is hingedly connected to the knife holder 3. The rotary motion of the vane 17 is converted into the swing motion of the connecting rod 10 through the eccentric pin shaft, and the connecting rod 10 further drives the knife holder 3 to linearly reciprocate on the base body. One end of the knife holder 3 is detachably installed with a needle knife 4, so the reciprocating motion of the knife holder 3 makes the needle knife 4 produce periodic stretching and shrinking action along the axis direction of the needle knife 4.

[0031] The positioning plate 5 is adjustably mounted on the base body and is formed with a positioning portion abutting against the workpiece. The needle-shaped cutter 4 can protrude out of the positioning portion to perform the needle-shaped operation on the workpiece. Specifically, by adjusting the position of the positioning plate 5, the length of the needle-shaped cutter 4 protruding out of the positioning portion can be accurately set, so as to limit the cutting depth of the needle-shaped cutter 4, thereby ensuring that the needle-shaped cutter 4 only penetrates into the workpiece within a preset range and avoiding the risk of damaging the internal structure of the workpiece due to overcutting.

[0032] The cutter holder 3 is hingedly connected to one end of the connecting rod 10 and is provided with a hole-ear plate 14. A through hole is formed at the end of the connecting rod 10. The hole-ear plate 14 and the through hole are connected by a shaft pin 15 to form a hinge connection, so that the cutter holder 3 and the connecting rod 10 can rotate relative to each other. The connecting rod 10 transmits the rotating pin shaft action to drive the cutter holder 3 to perform reciprocating linear motion along the axial direction, thereby driving the needle-shaped cutter 4 to perform reciprocating action to needle the target shell.

[0033] As shown in Figure 2 and Figure 3 , a guide element 13 is mounted on the base body. The guide element 13 is formed with a guide hole. The cutter holder 3 is coaxially and slidingly mounted in the guide hole. The guide element 13 has a separate structure with high-rigidity support reference and can be replaced after wear. The guide element 13 can be realized by a cylindrical sleeve made of metal material, such as a copper sleeve, or can be realized by a linear guide rail, a sliding groove, etc., to ensure that the cutter holder 3 maintains a stable linear trajectory during reciprocating motion.

[0034] In this embodiment, the guide element 13 is a linear bearing 16, which is installed in a preset hole of the cover plate 1 by a clamp spring 12. The guide hole is a cylindrical passage formed in the guide element 13. When the passage is used as the guide element 13, the guide hole can be machined by grinding or boring to ensure the geometric accuracy and surface finish of the inner wall of the guide hole. The linear bearing 16 itself has a cylindrical passage as the guide hole. The cutter holder 3 is coaxially and slidingly mounted in the guide hole, and the linear motion constraint eliminates the influence of radial deviation and vibration on the motion trajectory of the needle-shaped cutter 4.

[0035] As shown in Figure 4 and Figure 3 , the needle-shaped cutter 4 is detachably mounted on the cutter holder 3. The shank of the needle-shaped cutter 4 is mounted in a preset mounting hole of the cutter holder 3 to transmit axial force and is positionally constrained by a pin 11. The needle-shaped cutter 4 has a sharp needle tip and can pierce the target shell. It can be made of high-strength alloy steel or hard alloy material to adapt to impact and friction in high-speed reciprocating motion.

[0036] It should be pointed out that the needle tip of the needle tool 4 can adopt a triangular pyramid or a wedge with a cutting edge, and the main function is to scratch and crack, rather than cutting like a turning tool. In actual use, not only can the metal film 19 be pierced, but also a stress concentration damage line can be formed on the surface of the cladding by controlling the length of the needle tool 4 protruding from the positioning part, rather than being completely cut off. By controlling the needle depth to be 80%~90% of the thickness of the cladding, a continuous point or line weakening zone is formed, which reserves a safety margin, can adapt to the thickness thinning error caused by cladding deformation, reduces the possibility of physical contact with the target material 20, and forms an easy-to-tear structure on the metal film 19, which can be easily torn along the weakening zone by the subsequent stripping mechanism.

[0037] In practical application, the detachable needle tool 4 can be suitable for remote operation requirements in a radiation environment, and the worn or damaged tool can be quickly replaced, thereby reducing the operation time in the hot cell. The mounting hole refers to a hole structure on the tool holder 3 that is matched with the geometric shape of the handle of the needle tool 4 to realize positioning and ensure the consistency of the position of the tool each time it is installed. The pin 11 can adopt a cylindrical pin, an elastic pin or a split pin, etc., to realize the axial and circumferential constraint of the needle tool 4, and prevent the tool from loosening or deviating during high-speed movement.

[0038] By embedding the handle of the needle tool 4 into the mounting hole on the tool holder 3, the axial force is transmitted to the tool holder 3 rather than the pin 11, and the pin 11 provides constraint for the needle tool 4, so that it always maintains a stable posture during high-speed reciprocating motion.

[0039] As shown in Figure 2 and Figure 3 , a guide seat 6 is installed on the base, the positioning plate 5 is slidingly fitted with the guide seat 6, and the guide seat 6 is fitted with a locking member 2 to lock the relative position of the guide seat 6 and the positioning plate 5, or to unlock the positioning plate 5 to change the length of the needle tool 4 protruding from the positioning part.

[0040] The guide seat 6 provides a linear motion reference for the positioning plate 5, which can adopt dovetail groove guide rail, linear bearing 16 or rectangular guide rail, etc. with guiding function. Among them, the locking member 2 is used to fix the position of the positioning plate 5, which can be a bolted pressing plate, a quick release clamp or an eccentric wheel locking mechanism, and the purpose is to eliminate the fitting gap by applying a stable clamping force to ensure the position stability of the positioning plate 5 in the working state.

[0041] By setting a guide seat 6 on the substrate, a precise linear guide reference is provided for the positioning plate 5, enabling it to slide smoothly along a predetermined trajectory and avoiding positional deviation caused by external force interference. The sliding fit between the positioning plate 5 and the guide seat 6 allows for convenient and precise adjustment of the needle penetration depth. After adjustment, the positioning plate 5 is locked in position by the locking element 2, effectively preventing accidental displacement caused by vibration or impact during hot chamber operation. The switchable locking and unlocking mechanism not only meets the need for rapid adjustment but also ensures positional stability during operation, thereby achieving precise control of the needle penetration depth.

[0042] The guide seat 6 on the base provides reliable guidance and support for the positioning plate 5. Together with the locking member 2, it forms a complete positioning and adjustment system. In this embodiment, the positioning plate 5 is specifically a U-shaped bent plate composed of two vertical plates and a horizontal plate. The two vertical plates slide and cooperate with the guide seats 6 installed on both sides of the base. The vertical plates extend the horizontal plate out of the base. The horizontal plate serves as the positioning part and has a through hole for the needle-piercing tool 4 to pass through.

[0043] Specifically, the U-shaped bent plate can be formed by stamping or welding of metal sheets, which can improve the stability of the positioning plate 5 during remote operation and avoid minor displacement caused by vibration or external force. The two vertical plates slide in conjunction with the guide seats 6 installed on both sides of the base to form a double-point support guiding mechanism. This can be achieved by using a linear guide rail with a slider, or by forming a guide groove with a bent pressure plate, ensuring the smoothness of the adjustment movement and preventing debris from entering the sliding interface. The horizontal plate serves as the positioning part and has through holes to achieve precise contact positioning of the workpiece surface, while allowing the needle-piercing tool 4 to reciprocate.

[0044] The positioning plate 5 structure enhances overall rigidity through bending, effectively resisting vibration and external force interference during remote operation and ensuring the stability of depth control. The sliding cooperation between the two vertical plates and the guide seat 6 forms a dual-point support guiding mechanism, which not only makes the adjustment process smoother but also effectively prevents debris from entering the sliding interface, thus preventing jamming.

[0045] The through holes on the horizontal plate not only allow the needle-punching tool 4 to move freely back and forth, but also facilitate the timely removal of waste generated in the needle-punching area in conjunction with the blowing airflow, maintaining the cleanliness of the cutting path and thus reducing the risk of overcutting due to obstruction of vision.

[0046] like Figure 2 and Figure 3 As shown, the base includes a base plate 8 and a cover plate 1. The cover plate 1 and the base plate 8 are respectively provided with grooves for accommodating the impeller 17. The cover plate 1 and the base plate 8 are fastened together to form an air chamber by combining the grooves. The impeller 17 rotates to engage with the wheel shaft, and the wheel shaft is fixed to the base plate 8.

[0047] The base body is designed as two parts of the detachable bottom plate 8 and cover plate 1, which can simplify the manufacturing process and improve the assembly accuracy. In practical applications, the bottom plate 8 and cover plate 1 can be made of high-strength aluminum alloy or stainless steel material, and the matching accuracy of the groove and impeller 17 is ensured by precise numerical control machining. Among them, the groove can be adjusted according to the specific size of the impeller 17, and the buckling mode of the cover plate 1 and the bottom plate 8 can adopt bolt connection or buckle structure, which is convenient for quick disassembly and assembly in a radioactive environment.

[0048] The axle is fixed to the bottom plate 8, which ensures the stability of the impeller 17 during high-speed rotation, and facilitates the replacement of damaged parts during maintenance. When compressed air enters the air chamber, it can stably drive the impeller 17 to rotate, and then convert the rotary motion into reciprocating motion of the needle punch tool 4 through the slider-crank mechanism, which is suitable for a radioactive environment, ensuring reliable operation of the device and significantly reducing the risk and cost of maintenance operation.

[0049] The exhaust port 7 is connected to one end of the exhaust pipe, and the other end of the exhaust pipe is directed towards the position of the needle punch tool 4 for piercing the workpiece, so as to blow the needle piercing area. The exhaust port 7 refers to an opening structure provided on the base body for discharging the exhaust gas in the air chamber, which can be realized by a circular, square or other suitable hole structure.

[0050] The exhaust pipe is connected to the exhaust port 7 and guides the airflow direction, which can be made of durable materials such as metal and plastic, with the purpose of building a controllable airflow guide path to make the originally lost airflow be redirected and utilized. The position of the needle punch tool 4 for piercing the workpiece is the specific area where the needle punch tool 4 contacts the workpiece and performs cutting operation, which is the target point of airflow guidance, and the debris cleaning function is realized by accurately focusing the airflow.

[0051] By combining the exhaust port 7 with the exhaust pipe, an airflow guide path is formed, so that the exhaust gas discharged from the air chamber can be effectively utilized. One end of the exhaust pipe is connected to the exhaust port 7, and the other end is directed towards the position where the needle punch tool 4 contacts the workpiece, so as to directly act on the incision point. Not only avoids the random loss of airflow, but also effectively removes the metal debris and burrs near the incision through the impact of airflow. In addition, the continuous airflow blowing maintains the cleanliness of the working interface, eliminating the obstruction of the operator's vision by the debris, thereby ensuring the real-time monitoring of the cutting depth and avoiding the risk of overcutting due to unclear vision. Under the overall framework of the above target cladding disassembly device, the functionality and operation safety of the device are improved by effectively utilizing the airflow.

[0052] Control valves are installed at both the exhaust port 7 and the air inlet 9. In practical applications, the control valves are used to regulate fluid flow, and can be implemented in various forms such as manual valves, electric valves, or pneumatic valves. Specifically, the control valve at the exhaust port 7 is mainly used to adjust the intensity of the purging airflow to adapt to different states of debris accumulation in the needle-punching area; the control valve at the air inlet 9 indirectly affects the impeller 17 speed and the frequency and force of the needle-punching action by adjusting the amount of compressed air input.

[0053] By installing a control valve at the exhaust port 7, operators can flexibly adjust the intensity of the blowing airflow according to the actual working conditions of the needle-punching area. When it is observed that debris accumulation obstructs the view, the opening of the control valve at the exhaust port 7 can be opened or increased to enhance the blowing effect and quickly remove obstacles; while in the critical stage where high-precision cutting is required, the opening of the control valve at the exhaust port 7 can be reduced or closed to avoid the airflow interfering with the needle-punching action.

[0054] Meanwhile, the air inlet 9 control valve, through precise management of compressed air flow, directly affects the adjustment of the impeller 17 rotation speed, thereby achieving dynamic control of the needle-piercing frequency and force. For example, during the high-efficiency demolition stage, the air intake can be appropriately increased to enhance power output; while during the high-precision cutting stage, the needle-piercing force is reduced by decreasing the air intake to prevent over-cutting damage to the target material 20. In addition, the combined use of the two control valves can maintain the balance of air pressure within the system, ensuring stable coordination between the purging airflow and the needle-piercing action, ultimately significantly improving the clarity of vision and cutting reliability under conditions where remote operation is limited.

[0055] Example 2 In another typical embodiment of the present invention, such as Figures 1-6 As shown, a target shell disassembly method is provided, which utilizes the target shell disassembly device as described in Example 1, and includes the following steps: Move the device above the target piece so that the positioning part of the positioning plate 5 is in close contact with the surface of the target piece shell, and adjust the positioning plate 5 to determine the cutting depth. Compressed air is introduced into the air inlet 9 of the base, and the airflow enters the air chamber and impacts the impeller 17 to rotate. The rotation of the impeller 17 drives the eccentric pin on the end face to rotate, and the eccentric pin drives the connecting rod 10 to swing. The connecting rod 10 then drags the tool holder 3 to slide linearly back and forth on the base, so that the needle-piercing tool 4 installed at the front end of the tool holder 3 produces a reciprocating extension and retraction piercing action along the axial direction. As the needle-piercing tool 4 reciprocates, the needle tip periodically protrudes from the positioning plate 5 and pierces the target sheet shell; at the same time, the control device moves along the predetermined cutting trajectory, thereby forming continuous cuts or cracks on the shell.

[0056] After the airflow drives the impeller 17 to rotate and do work, the exhaust air in the air chamber is guided and sprayed through the exhaust port 7 to the needle-punching area where the needle-punching tool 4 contacts the workpiece, thus cleaning up the waste generated by needle punching.

[0057] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. A target shell disassembly device, characterized in that, include: The base has an air chamber inside, and an impeller is rotatably installed inside the air chamber. The base has an air inlet and an air outlet that connect to the air chamber, so that the airflow is input to drive the impeller to rotate and then the airflow is discharged. The tool holder is slidably mounted on the base. One end of the tool holder is hinged to a connecting rod, and the other end can be detachably mounted with a needle-punching tool. The end of the connecting rod away from the tool holder is rotatably connected to a pin eccentrically mounted on the end face of the impeller, forming a crank-slider mechanism to drive the needle-punching tool to reciprocate along the axis. The positioning plate is adjustable and mounted on the base. The positioning plate has a positioning part that abuts against the workpiece. The needle-piercing tool can extend out of the positioning part to pierce the workpiece.

2. The target casing disassembly device as described in claim 1, characterized in that, A guide element is installed on the base, and a guide hole is formed in the guide element. The tool holder is coaxially and slidably installed in the guide hole.

3. The target casing disassembly device as described in claim 1 or 2, characterized in that, The needle-piercing tool is detachably mounted on the tool holder. The shank of the needle-piercing tool is installed in a preset mounting hole in the tool holder to transmit axial force and is positioned by a pin.

4. The target casing disassembly device as described in claim 1, characterized in that, A guide seat is installed on the base, and a positioning plate slides in conjunction with the guide seat. A locking element is fitted on the guide seat to lock the relative position of the guide seat and the positioning plate, or to unlock the positioning plate relative to the guide seat to adjust the position and change the length of the needle-piercing tool protruding from the positioning part.

5. The target casing disassembly device as described in claim 4, characterized in that, The positioning plate is a U-shaped bent plate composed of two vertical plates and a horizontal plate. The two vertical plates slide and cooperate with the guide seats installed on both sides of the base. The vertical plates extend the horizontal plate out of the base. The horizontal plate serves as the positioning part and has a through hole for the needle-piercing tool to pass through.

6. The target casing disassembly device as described in claim 1, characterized in that, The base includes a base plate and a cover plate. The cover plate and the base plate are respectively provided with grooves to accommodate the impeller. The cover plate and the base plate are fastened together to form an air chamber. The impeller rotates in conjunction with the wheel shaft, and the wheel shaft is fixed to the base plate.

7. The target casing disassembly device as described in claim 1 or 6, characterized in that, The exhaust port is connected to one end of the exhaust pipe, and the other end of the exhaust pipe is directed toward the position of the needle-punching tool puncturing the workpiece to blow away the puncturing area.

8. The target casing disassembly device as described in claim 7, characterized in that, The exhaust port and the air inlet are each equipped with a control valve.

9. A method for disassembling a target casing, utilizing the target casing disassembly device as described in any one of claims 1-8, characterized in that, include: Move the device above the target piece so that the positioning part of the positioning plate is in close contact with the surface of the target piece casing, and adjust the positioning plate to determine the cutting depth; Compressed air is introduced into the air inlet of the substrate, and the airflow enters the air chamber and impacts the impeller to rotate. The rotation of the impeller drives the eccentric pin on the end face to rotate, and the eccentric pin drives the connecting rod to swing. The connecting rod then drags the tool holder to slide linearly back and forth on the substrate, so that the needle-piercing tool installed at the front end of the tool holder produces a reciprocating extension and retraction piercing action along the axial direction. As the needle-piercing tool reciprocates, the needle tip periodically protrudes from the positioning plate and pierces the target sheet shell; at the same time, the control device moves along the predetermined cutting trajectory, thereby forming continuous cuts or cracks on the shell.

10. The target casing disassembly method as described in claim 9, characterized in that, After the airflow drives the impeller to rotate and do work, the exhaust air in the air chamber is guided and sprayed through the exhaust port to the needle-punching area where the needle-punching tool contacts the workpiece, thus cleaning up the waste generated by needle punching.

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