A laser tube cutting machine with an adaptive end-wall slag removal mechanism

Abstract

This invention discloses a laser tube cutting machine with an adaptive end-wall slag removal mechanism, relating to the field of laser tube cutting technology. It includes a cutting frame, a storage rack, and a transmission frame. The storage rack is installed on one side of the cutting frame, and the transmission frame is installed on the other side. Through innovative design, this laser tube cutting machine effectively collects molten slag during the cutting process and uses friction blocks to adaptively grind and clean the inner wall of the tube after cutting. This significantly improves cutting quality and the cleanliness of the inner wall. In particular, the friction block grinding and cleaning mechanism of this invention can automatically adjust the friction intensity and position according to the actual condition of the inner wall of the tube, effectively removing residual molten slag and providing a good foundation for subsequent processing. Compared with existing technologies, the friction block grinding and cleaning mechanism of this invention has higher cleaning efficiency and better cleaning effect, significantly improving the overall performance of the laser tube cutting machine.

Description

Technical Field

[0001] This invention relates to the field of laser tube cutting technology, specifically to a laser tube cutting machine with an adaptive end-wall slag removal mechanism. Background Technology

[0002] In the field of laser tube cutting technology, laser cutting is widely used in the processing of various metal tubes due to its high efficiency and precision. However, the slag generated during laser cutting has always been one of the key factors restricting the cutting quality. Especially when cutting materials such as stainless steel containing elements such as chromium and nickel that easily increase the viscosity of slag, the slag is more likely to adhere to the inner wall of the tube, forming slag, which seriously affects the flatness of the cut surface and the quality of subsequent processing.

[0003] In the prior art, one common method to address the slag problem during laser tube cutting is to use a dust extraction pipe. For example, the utility model patent CN217727512U, "A device for solving the slag accumulation during laser tube cutting," uses a slag collection rod to collect slag during the cutting process to reduce slag adhesion to the inner wall of the tube. However, although this method can effectively collect most of the slag, it has limited cleaning effect on residual slag that has splashed onto other parts of the inner wall of the tube during the cutting process. This results in the need for inspection and secondary slag treatment of the tube after cutting, which is time-consuming and labor-intensive.

[0004] To address this, we propose a laser tube cutting machine with an adaptive end-wall slag removal mechanism. Summary of the Invention

[0005] The purpose of this invention is to provide a laser tube cutting machine with an adaptive end-wall slag removal mechanism to solve the problems mentioned in the background art;

[0006] To achieve the above objectives, the present invention provides the following technical solution: a laser tube cutting machine with an adaptive end-wall slag cleaning mechanism, comprising a cutting frame, a storage rack and a transmission frame, wherein a storage rack is installed on one side of the cutting frame and a transmission frame is installed on the other side, a laser cutting assembly is installed on the cutting frame, a clamping and rotating assembly is installed on the cutting frame, and a movable cover is slidably connected to the top of the storage rack;

[0007] A transmission assembly is slidably connected to the top inner wall of the movable cover. A positioning disk is installed on the transmission assembly, and claw blocks are evenly slidably connected in a groove on one side of the positioning disk. A transmission box is fixed to the outer wall of the movable cover by bolts. A rotating sleeve is slidably connected to one side of the transmission box. One side of the rotating sleeve passes through the positioning disk and is slidably connected to it. A positioning post is slidably connected inside the rotating sleeve. A limit sleeve is fixedly fitted on the positioning post. An outer support plate is symmetrically slidably connected to the outer wall of the rotating sleeve and located on the side of the limit sleeve. A friction block is fixedly connected to the outer support plate. A rocker arm is rotatably connected to the inner wall of the rotating sleeve and located on the side of the outer support plate. A ball bearing is slidably connected to the end of the rocker arm and is slidably connected to the limit sleeve. The other end of the rocker arm is slidably connected to the outer support plate. A residue collection groove is opened on the outer wall of the rotating sleeve.

[0008] A gear is installed inside the transmission box and on the rotating sleeve. A transmission gear shaft and a contact ring are movably connected inside the transmission box. A gear is fixed on one side of the contact ring. A gear is installed on one side of the transmission gear shaft. The gear on the transmission gear shaft meshes with the gear on the rotating sleeve. A gear is installed on the other side of the transmission gear shaft. The gear on the other side of the transmission gear shaft meshes with the gear on the contact ring.

[0009] Inside the transmission box, a swing rod is rotatably connected to the face opposite to the abutment ring. One side of the swing rod abuts against the side wall of the abutment ring, and the other side abuts against the positioning post. A limit cylinder is fitted and fixed on the part of the positioning post inside the swing sleeve.

[0010] A sealing ring is installed on the inner wall of the sleeve and on the side of the limiting cylinder. An outer support block is slidably connected to the inner wall of the sealing ring. One end of the outer support block passes through the sleeve and is equipped with a ball bearing. A spring is sleeved on the part of the outer support block located inside the sealing ring. The outer wall of the limiting cylinder abuts against the outer support block. When the positioning column moves, it can push the outer support block to expand outward, so that the ball bearing is tightly attached to the inner wall of the pipe.

[0011] Furthermore, a receiving trolley is slidably connected to the bottom of the storage rack, and a limit flow channel is fixed on the storage rack by bolts.

[0012] Furthermore, a guide assembly is installed on the side wall of the transmission frame, and a push assembly is slidably connected on the transmission frame and located on the side of the guide assembly.

[0013] The laser tube cutting method of this laser tube cutting machine is as follows:

[0014] During cutting, slag is collected. A stainless steel tube is placed on the guide assembly. One end of the stainless steel tube is clamped by the push assembly, which pushes the other end of the stainless steel tube to contact the clamping rotating assembly on the cutting frame. The single cutting length of the stainless steel tube is set, and the movable cover is controlled to move. Along with the movement of the push assembly, the moving stainless steel tube abuts against the positioning plate side of the transmission assembly. At the same time, the motor inside the transmission assembly rotates, controlling multiple sets of claw blocks to contact one end of the stainless steel tube. Along with the rotation of the clamping rotating assembly, the laser cutting assembly on the cutting frame adjusts the focus position. The stainless steel tube rotates while cutting, and the slag generated during the cutting process enters the slag collection tank.

[0015] During the grinding process, slag is removed. Multiple sets of claw blocks on the transmission assembly clamp one end of the stainless steel tube. At the same time, the motor in the transmission box drives the transmission gear shaft to rotate. The rotating sleeve rotates on the inner wall of the stainless steel tube. While the abutment ring contacts the rocker arm, it squeezes the positioning column. The positioning column slides and squeezes the outer support block through the limiting sleeve. The limiting sleeve slides and squeezes the rocker arm. The rocker arm rotates and pushes the friction block on the outer support plate to contact the inner wall of the cut stainless steel tube. Along with the rotation of the rotating sleeve as a whole, the slag on the inner wall of the stainless steel tube is ground and cleaned. After cleaning, the stainless steel tube cut and sleeved on the outside of the rotating sleeve is pushed into the limiting flow channel as the transmission assembly and movable cover slide.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In this invention, the laser tube cutting machine innovatively opens a slag collection groove on the top of the sleeve, which realizes the effective collection of molten slag generated during the cutting process, significantly reducing the interference of molten slag on the cutting process. More importantly, after the cutting is completed, the sleeve can rotate and drive the friction block on the outer support plate to contact and grind the inner wall of the cut stainless steel tube, thereby completely removing the residual molten slag. The application of this mechanism greatly improves the cutting quality of the laser tube cutting machine, avoids problems such as uneven tube wall and dimensional deviation caused by molten slag residue, and ensures that the cut tube can meet the high-quality requirements.

[0018] 2. In this invention, the rotating sleeve design in the adaptive end slag removal mechanism demonstrates a high degree of adaptability. It can flexibly adjust the position of the outer support plate and friction block according to the diameter and wall thickness of different pipes, ensuring that it can always effectively contact and remove molten slag. This design enables the laser pipe cutting machine to easily cope with the cutting needs of pipes of different specifications and materials, greatly enhancing the versatility and flexibility of the equipment. At the same time, this mechanism is closely integrated with the overall control system of the laser pipe cutting machine, realizing the automation of processes such as cutting and slag removal. This not only reduces manual intervention and labor intensity, but also significantly improves production efficiency and reduces operational errors caused by human factors, further improving product quality. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the laser tube cutting machine with an adaptive end-wall slag removal mechanism according to the present invention;

[0020] Figure 2 This is a schematic diagram of the assembly structure of the cutting frame, storage rack, and transmission frame of the present invention;

[0021] Figure 3 This is a schematic front view of the laser tube cutting machine with an adaptive end-wall slag removal mechanism according to the present invention;

[0022] Figure 4 This is a schematic diagram of the installation structure of the movable cover on the top of the storage rack of the present invention;

[0023] Figure 5 This is a schematic diagram of the installation structure of the transmission assembly inside the active cover of the present invention;

[0024] Figure 6 This is a schematic diagram of the slag entering the residue collection tank during the pipe cutting process of the present invention;

[0025] Figure 7 This is a schematic diagram of the installation structure of the outer support block on the inner sealing ring side of the limiting cylinder of the present invention;

[0026] Figure 8 This is a schematic diagram of the installation structure of the external support plate on the side of the positioning column of the present invention;

[0027] Figure 9 This is a schematic diagram showing how the transmission gear shaft inside the transmission box of the present invention synchronously drives the rotating sleeve and the abutment ring to rotate.

[0028] In the diagram: 1. Cutting frame; 2. Storage rack; 3. Transmission frame; 4. Laser cutting assembly; 5. Clamping and rotating assembly; 6. Movable cover; 7. Guide assembly; 8. Pushing assembly; 9. Receiving trolley; 10. Limiting flow channel; 11. Transmission assembly; 12. Positioning plate; 13. Claw block; 14. Transmission box; 15. Rotating sleeve; 16. Transmission gear shaft; 17. Abutment ring; 18. Swing rod; 19. Positioning column; 20. Limiting cylinder; 21. Sealing ring; 22. Outer support block; 23. Limiting sleeve; 24. Outer support plate; 25. Friction block; 26. Raising arm; 27. Residue collection trough. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-9 The present invention provides a technical solution:

[0031] Example 1: The present invention discloses a laser tube cutting machine with an adaptive end-wall slag cleaning mechanism. The laser tube cutting machine includes a cutting frame 1, a storage rack 2 and a transmission frame 3. With the cutting frame 1 as the center, the storage rack 2 is installed on one side and the transmission frame 3 is installed on the other side. The cutting frame 1 is equipped with a laser cutting component 4 and a clamping rotation component 5. The top of the storage rack 2 is slidably connected to a movable cover 6.

[0032] In specific implementation, such as Figure 1 and Figure 2 As shown, the modular functional areas are defined. The transmission frame 3 is used for placing and pushing the cut pipe, the cutting frame 1 is used for clamping, rotating and laser cutting the pipe, and the storage rack 2 is used for cleaning the slag on the inner wall of the cut pipe and storing and collecting the cut pipe. Each performs its own function to improve the overall pipe cutting efficiency and quality.

[0033] There are several reasons for the presence of slag during laser cutting of pipes. The amount of slag generated can be reduced by adjusting the cutting gas pressure, laser focus, and cutting rate. However, the composition of some pipe materials, such as chromium and nickel in stainless steel, increases the viscosity of the slag. This problem cannot be solved by adjusting the slag. To address this, a movable sleeve 15 is used to collect slag from the inner wall during the cutting process. In the existing technology, the sleeve 15 is defined as a dust extraction pipe. This method is efficient and simple in removing slag. However, considering that some slag is splashed during the cutting process, collection is the core technology. The remaining slag is then treated by friction grinding to further improve the quality of laser-cut pipe body processing.

[0034] like Figure 4 and Figure 5 As shown, a transmission assembly 11 is slidably connected to the inner top wall of the movable cover 6. A positioning plate 12 is installed on the transmission assembly 11, and claw blocks 13 are evenly slidably connected in a groove on one side of the positioning plate 12. The transmission assembly 11 is configured to adapt the cutting pipe length. The positioning plate 12 on the transmission assembly 11 can slide on the outer wall of the sleeve 15. When the push assembly 8 moves the pipe, it contacts the positioning plate 12. At this time, the distance between the positioning plate 12 and the laser cutting assembly 4 is the length of the cutting pipe, thus realizing the adjustment of the cutting pipe length. Correspondingly, a receiving trolley 9 is set at the bottom of the storage rack 2. For short-distance pipe cutting, the cutting material is discharged into the receiving trolley 9. For long-distance pipe cutting, to avoid clogging of the cutting pipe, a method is adopted as follows: Figure 4 The limiting flow channel 10 shown is subject to movement constraints;

[0035] like Figure 5As shown, the outer wall of the movable cover 6 is fixed with a transmission box 14 by bolts. A rotating sleeve 15 is movably connected to one side of the transmission box 14. One side of the rotating sleeve 15 passes through the positioning plate 12 and is slidably connected to it. The installation of the rotating sleeve 15 is used for automatic inner wall grinding after pipe cutting. For this purpose, the initial adjustment of pipe cutting is that the pipe diameter is larger than the diameter of the rotating sleeve 15.

[0036] Meanwhile, related components are also installed on the sleeve 15, combined with Figure 5 Understood, a residue collection trough 27 is provided at the top, and friction blocks 25 are installed in the channels on both sides. Figure 7 and Figure 8 As shown, a positioning post 19 is slidably connected inside the sleeve 15, and a limiting sleeve 23 is fixedly fitted on the positioning post 19. To effectively clean the slag adhering to the end of the pipe, an outer support plate 24 is symmetrically slidably connected to the outer wall of the sleeve 15 and located on the side of the limiting sleeve 23. A friction block 25 is fixedly connected to the outer support plate 24. A rocker arm 26 is rotatably connected to the inner wall of the sleeve 15 and located on the side of the outer support plate 24. A ball bearing movably connected to the end of the rocker arm 26 is in rolling connection with the limiting sleeve 23. The other end of the rocker arm 26 is slidably connected to the outer support plate 24. When the positioning post 19 drives the limiting sleeve 23 to slide, The moving limiting sleeve 23 drives the lifting arm 26 to rotate. Through the lever action of the lifting arm 26, the outer support plate 24 can be driven to expand outward, so that the friction block 25 is in close contact with the inner wall of the pipe. Subsequently, after the rotating sleeve 15 rotates, the friction block 25 rotates and grinds along the slag side of the inner wall of the pipe, completing the automatic grinding process after the inner wall of the pipe is cut. The moving distance of the positioning column 19 controls the outward pushing distance of the friction block 25, effectively solving the problem of friction damage to the inner wall of the pipe. Similarly, when the rotating sleeve 15 rotates, the ball at one end of the lifting arm 26 rotates along the limiting sleeve 23, and its movement is unrestricted, ultimately effectively removing the slag at the end.

[0037] like Figure 6 As shown, during pipe cutting, the entire sleeve 15 remains stationary, and the center of the residue collection tank 27 faces the laser cutting focal point. Most of the molten slag generated during the cutting process enters the residue collection tank 27. Figure 7 Combination Figure 5 The end of the sleeve 15 is provided with a slot and connected to the residue collection tank 27, and the residue collection tank 27 is subsequently cleaned through the slot.

[0038] Regarding the positioning pin 19 and the drive of the rotating sleeve 15, a gear is installed inside the transmission box 14 and on the rotating sleeve 15. A transmission gear shaft 16 and an abutment ring 17 are movably connected inside the transmission box 14, and a gear is fixed on the side of the abutment ring 17. A gear is installed on one side of the transmission gear shaft 16 and meshes with the gear on the rotating sleeve 15, and a gear is installed on the other side and meshes with the gear on the abutment ring 17. When the transmission gear shaft 16 rotates, it can simultaneously drive the rotating sleeve 15 and the abutment ring 17 to rotate.

[0039] Inside the transmission housing 14, a rocker arm 18 is rotatably connected to the face opposite to the abutment ring 17 of the rotating sleeve 15. One side of the rocker arm 18 abuts against the side wall of the abutment ring 17, and the other side abuts against the positioning post 19. Figure 9 As shown, when the abutment ring 17 rotates, one side of the ring surface contacts the rocker arm 18 and pushes the rocker arm 18 to rotate, thereby pushing the positioning pin 19 to move within the sleeve 15. Conversely, when there is no rocker arm 18 abutting, the spring at its end pushes the positioning pin 19 to reset. Therefore, by rotating the transmission gear shaft 16, both the sleeve 15 can be rotated and the positioning pin 19 can be moved. At the same time, the moving distance of the positioning pin 19 can be achieved by replacing the abutment ring 17.

[0040] like Figure 7 As shown, the positioning post 19 is located inside the sleeve 15 and a limiting cylinder 20 is fixed therein. A sealing ring 21 is installed on the inner wall of the sleeve 15 and on the side of the limiting cylinder 20. An outer support block 22 is evenly slidably connected to the inner wall of the sealing ring 21. One end of the outer support block 22 passes through the sleeve 15 and is equipped with a ball bearing. A spring is installed inside the sealing ring 21 on the outer support block 22. The outer wall of the limiting cylinder 20 abuts against the outer support block 22. When the positioning post 19 moves, it can push the outer support block 22 to expand outward, so that the ball bearing is tightly attached to the inner wall of the pipe, thereby achieving inner wall support during pipe cutting and subsequent grinding, and improving the overall pipe processing effect.

[0041] When specifically processing the molten slag on the inner wall of the pipe, after cutting, one end of the pipe is clamped by the claw block 13 on the positioning plate 12, the positioning column 19 moves to the left, the limiting cylinder 20 first contacts the inner wall of the pipe, and then continuously squeezes the lifting arm 26, so that the friction block 25 on the side of the outer support plate 24 contacts the inner wall of the pipe. While rotating, the friction block 25 completes the cleaning of the inner wall of the pipe in the cutting area. Then, the transmission component 11 cooperates with the movable cover 6 to push the cut pipe on the rotating sleeve 15 away.

[0042] Example 2: Based on Example 1, this example optimizes some structures of the laser tube cutting machine to improve the automation level of the laser tube cutting machine. This example also adds a control system, which can realize precise control of components such as laser cutting component 4, clamping rotation component 5, and transmission component 11, thereby realizing automatic feeding, clamping, cutting, slag removal and unloading of tubes.

[0043] To achieve precise control of the pipe's rotation speed, the clamping rotation assembly 5 adopts a servo motor drive. By adjusting the speed of the servo motor, precise control of the pipe's rotation speed can be achieved, thereby meeting the needs of different cutting processes.

[0044] In addition, to improve the safety performance of the laser tube cutting machine, this embodiment also adds a safety protection device, which includes components such as a safety light curtain and an emergency stop button, which can effectively protect the operator and prevent accidents from happening.

[0045] The guide assembly 7 and the push assembly 8 installed on the three sides of the transmission frame are controlled synchronously, which facilitates the guidance and movement of pipes of different sizes before cutting, and further improves the overall cutting efficiency of the pipes.

[0046] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A laser pipe cutting machine with adaptive end inner wall slag hanging cleaning mechanism, comprising a cutting frame (1), a storage frame (2) and a transmission frame (3), taking the cutting frame (1) as the center, one side is installed with the storage frame (2), and the other side is installed with the transmission frame (3), characterized in that, The cutting frame (1) is equipped with a laser cutting assembly (4), the cutting frame (1) is equipped with a clamping and rotating assembly (5), and the top of the storage rack (2) is slidably connected with a movable cover (6). A transmission assembly (11) is slidably connected to the inner top wall of the movable cover (6). A positioning disk (12) is mounted on the transmission assembly (11), and claw blocks (13) are slidably connected evenly in a groove on one side of the positioning disk (12). A transmission box (14) is fixed to the outer wall of the movable cover (6) by bolts. A rotating sleeve (15) is slidably connected to one side of the transmission box (14). One side of the rotating sleeve (15) passes through the positioning disk (12) and is slidably connected to it. A positioning post (19) is slidably connected inside the rotating sleeve (15). A fixed limiting sleeve (23) is fitted and fixed. An outer support plate (24) is symmetrically slidably connected to the outer wall of the rotating sleeve (15) and located on the side of the limiting sleeve (23). A friction block (25) is fixedly connected to the outer support plate (24). A rocker arm (26) is rotatably connected to the inner wall of the rotating sleeve (15) and located on the side of the outer support plate (24). A ball connected to the end of the rocker arm (26) is slidably connected to the limiting sleeve (23). The other end of the rocker arm (26) is slidably connected to the outer support plate (24). A residue collection groove (27) is opened on the outer wall of the rotating sleeve (15). Gears are installed inside the transmission box (14) and on the sleeve (15). A transmission gear shaft (16) and an abutment ring (17) are movably connected inside the transmission box (14). A gear is fixed on one side of the abutment ring (17). A gear is installed on one side of the transmission gear shaft (16). The gear on the transmission gear shaft (16) meshes with the gear on the sleeve (15). A gear is installed on the other side of the transmission gear shaft (16). The gear on the other side of the transmission gear shaft (16) meshes with the gear on the abutment ring (17). Inside the transmission box (14) and on the opposite side of the rotating sleeve (15) and the abutment ring (17), there is a swing rod (18). One side of the swing rod (18) abuts against the side wall of the abutment ring (17), and the other side abuts against the positioning post (19). A limiting sleeve (20) is fixed on the part of the positioning post (19) inside the rotating sleeve (15). A sealing ring (21) is installed on the inner wall of the sleeve (15) and on the side of the limiting cylinder (20). An outer support block (22) is evenly slidably connected to the inner wall of the sealing ring (21). One end of the outer support block (22) passes through the sleeve (15) and is equipped with a ball. A spring is sleeved on the part of the outer support block (22) located inside the sealing ring (21). The outer wall of the limiting cylinder (20) abuts against the outer support block (22). When the positioning column (19) moves, it can push the outer support block (22) to expand outward, so that the ball is tightly attached to the inner wall of the pipe.

2. A laser pipe cutting machine with adaptive end inner wall slag cleaning mechanism as claimed in claim 1 wherein, The bottom of the storage rack (2) is slidably connected to a receiving trolley (9), and a limit channel (10) is fixed on the storage rack (2) by bolts.

3. A laser pipe cutting machine with adaptive end inner wall slag cleaning mechanism as claimed in claim 2 wherein, A guide assembly (7) is installed on the side wall of the transmission frame (3), and a push assembly (8) is slidably connected on the transmission frame (3) and located on the side of the guide assembly (7).

4. The laser pipe cutting machine with adaptive end inner wall slag cleaning mechanism according to claim 3, characterized in that, The laser tube cutting method of this laser tube cutting machine is as follows: During cutting, slag is collected, a stainless steel tube is placed on the guide component (7), one end of the stainless steel tube is clamped by the push component (8), and the other end of the stainless steel tube is pushed to contact the clamping rotating component (5) on the cutting frame (1). The single cutting length of the stainless steel tube is set, the movable cover (6) is controlled to move, and the push component (8) moves along with it. The moving stainless steel tube abuts against the positioning plate (12) side of the transmission component (11). At the same time, the motor inside the transmission component (11) rotates, and multiple sets of claw blocks (13) are controlled to contact one end of the stainless steel tube. Along with the clamping rotating component (5) rotating, the laser cutting component (4) on the cutting frame (1) adjusts the focus position. The stainless steel tube rotates while cutting, and the slag generated during the cutting process enters the residue collection tank (27). During the grinding process, the slag is cleaned, and multiple sets of claw blocks (13) on the transmission assembly (11) clamp one end of the stainless steel tube. At the same time, the motor in the transmission box (14) drives the transmission gear shaft (16) to rotate, and the rotating sleeve (15) rotates on the inner wall of the stainless steel tube. The abutting ring (17) contacts the swing rod (18) and squeezes the positioning column (19). The positioning column (19) slides and squeezes the outer support block (22) through the limiting cylinder (20). The limiting sleeve (23) slides and squeezes the lifting arm (26). The lifting arm (26) rotates and pushes the friction block (25) on the outer support plate (24) to contact the inner wall of the cut stainless steel tube. Along with the rotation of the rotating sleeve (15), the slag on the inner wall of the stainless steel tube is ground and cleaned. After cleaning, the stainless steel tube cut and sleeved on the outside of the rotating sleeve (15) is pushed into the limiting flow channel (10) as the transmission assembly (11) and the movable cover (6) slide.

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