An on-line cleaning and polishing device for the inner wall of an aluminum alloy pipe

Abstract

The utility model relates to the field of cleaning and polishing, and disclose a kind of aluminium alloy pipe inner wall on-line cleaning and polishing equipment device, including support base, stand, fixed mechanism, lifting mechanism and polishing mechanism, support base bottom is equipped with support leg, upper surface both sides symmetry install stand, sliding slot and screw hole are respectively arranged on stand, fixed mechanism is driven connecting rod two by motor and drives connecting rod one to push fixed block to move, the upper arc design of fixed block can be closely fitted pipe inner wall, cooperate the stable fixation of the placement platform of support disc, lifting mechanism is driven by motor screw control lifting plate vertical movement, drive polishing mechanism to adjust height, polishing mechanism is controlled piston rod telescopic by hydraulic cylinder, along sliding slot radial movement by connecting rod three, connecting rod four linkage polishing block, realize the accurate adjustment of polishing depth, the utility model is driven by each mechanism cooperation, solve the problem of unstable fixation, uneven polishing in traditional technology, significantly improve polishing quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cleaning and polishing, specifically to an online cleaning and polishing device for the inner wall of aluminum alloy pipes. Background Technology

[0002] Aluminum alloy tubing is widely used in aerospace, automotive manufacturing, and building decoration due to its lightweight, high strength, and corrosion resistance. However, during the forming, welding, or long-term use of the tubing, oxide scale, burrs, or welding slag are easily left on the inner wall, affecting the quality of subsequent processing or fluid transmission efficiency. Traditional manual grinding or offline processing methods are inefficient and inconsistent, making it difficult to meet the high-precision and high-efficiency production requirements of modern industry.

[0003] However, traditional aluminum alloy pipe internal wall cleaning and grinding techniques have some shortcomings. Regarding pipe fixing, traditional methods mostly use simple clamps, which cannot properly conform to the shape of the pipe's inner wall, resulting in poor stability. During grinding, the pipe is prone to shaking, making it difficult to perform the grinding work evenly. In terms of grinding depth adjustment, traditional techniques mostly rely on manual experience, making it difficult to make precise adjustments according to the actual needs of different pipes. This easily leads to grinding too deep or too shallow. Grinding too deep will thin the pipe wall, affecting its strength and safety, while grinding too shallow will not completely remove inner wall imperfections, failing to achieve the desired grinding effect. Therefore, we propose an online cleaning and grinding equipment for the inner wall of aluminum alloy pipes. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an online cleaning and grinding equipment for the inner wall of aluminum alloy pipes, which solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: an online cleaning and polishing device for the inner wall of aluminum alloy pipes, comprising a support base and columns. Support legs are fixedly installed on the bottom surface of the support base near the four corners. Columns are symmetrically fixedly installed on both sides of the upper surface of the support base. Openings are provided on the opposite surfaces of the two columns. Sliding grooves are symmetrically provided on both sides of the opening on one column. Threaded holes are provided on the bottom surface of the other column. A fixing mechanism is fixedly provided on the upper surface of the support base corresponding to the middle of the two columns. A lifting mechanism is provided on the columns, and a polishing mechanism is provided on the lifting mechanism.

[0006] Preferably, the fixing mechanism includes a motor, a fixing block, a first connecting rod, and a second connecting rod. A sliding seat is symmetrically fixedly installed on the upper surface of the support base, corresponding to the middle of the two columns. Sliding grooves are symmetrically opened on both sides of the sliding seat. A second connecting rod is rotatably connected between the two sliding seats on the support base. A motor is fixedly installed at the middle of the bottom surface of the support base. The output shaft of the motor is fixedly connected to the second connecting rod. The two ends of the second connecting rod are rotatably connected to the first connecting rod. A sliding block is fixedly installed on the bottom surface of the fixing block. The sliding block on the fixing block engages with and slides through the sliding grooves on the sliding seats on the support base. The upper part of the fixing block is arc-shaped, and a rotating block is fixedly installed on the opposite plane of the two fixing blocks. The other end of the first connecting rod is rotatably connected to the rotating block on the fixing block.

[0007] Preferably, connecting shafts are symmetrically fixedly installed on the upper surface of the support base on both sides of the sliding strip on the support base, and a support disc is fixedly installed on the top surface of the four connecting shafts. A through hole is opened in the middle of the plane of the support disc, and a placement platform is fixedly installed on the inner wall of the hole.

[0008] Preferably, the lifting mechanism includes a motor, a lifting plate, and a lead screw. The lead screw is rotatably connected to a threaded hole on the bottom surface of the column. Another motor is fixedly installed on the bottom surface of the support base. The output shaft of the motor and the lead screw are coaxially fixedly connected. A threaded hole is opened on one side of the lifting plate, and the threaded hole on the lifting plate is threadedly connected to the lead screw. A sliding block is fixedly installed on the other side of the lifting plate. The sliding block on the lifting plate and the sliding groove plate on another column are engaged and slidably connected.

[0009] Preferably, the grinding mechanism includes a grinding machine housing, a hydraulic cylinder, a grinding base, and a connecting seat. The bottom surface of the lifting plate is fixedly installed with the grinding base above the fixing mechanism. The grinding base is disc-shaped, and four through sliding grooves are circumferentially formed on the plane of the grinding base. A through connecting hole is formed in the middle of the plane of the grinding base. The grinding machine housing is fixedly installed on the plane of the grinding base that is not connected to the lifting plate. The grinding machine housing has a hollow internal structure, and four sliding openings are circumferentially formed on the outer arc surface of the grinding machine housing. The sliding openings on the grinding machine housing correspond to the sliding grooves on the grinding base. The top surface of the lifting plate is fixedly installed with a hydraulic cylinder. A piston rod is drivenly connected to the hydraulic cylinder. The piston rod passes through the connecting hole on the grinding base. A connecting seat is fixedly installed on the end face of the piston rod on the hydraulic cylinder inside the grinding machine housing. Four rotating connecting seats are circumferentially installed on the connecting seat. Another connecting seat is fixedly installed on the inner top surface of the grinding machine housing. The rotating connecting seats on the two connecting seats correspond one-to-one.

[0010] Preferably, the grinding mechanism further includes a grinding block, a third connecting rod, and a fourth connecting rod. Sandpaper is fixedly installed on one side of the grinding block, and a groove is opened on the other side. Two rotating shafts are fixedly installed vertically in the groove. The third connecting rod is rotatably connected to the rotating connecting seat on the connecting seat of the piston rod on the hydraulic cylinder. The other end of the third connecting rod is rotatably connected to the lower rotating shaft in the grinding block. The fourth connecting rod is rotatably connected to the rotating connecting seat on the connecting seat of the grinding machine housing. The other end of the fourth connecting rod is rotatably connected to the upper rotating shaft in the grinding block. A rotating block is fixedly installed in the middle of the plane of the third connecting rod, and a rotating hole is opened in the middle of the plane of the fourth connecting rod. The rotating block on the third connecting rod and the rotating hole on the fourth connecting rod are rotatably connected. A sliding block is fixedly installed on the upper surface of the grinding block. The sliding block on the grinding block is engaged and slidably connected to the sliding groove on the grinding base. The sliding opening on the grinding block corresponds to the sliding opening on the grinding machine housing.

[0011] Compared with the prior art, this utility model provides an online cleaning and grinding equipment for the inner wall of aluminum alloy pipes, which has the following beneficial effects:

[0012] 1. This online cleaning and polishing equipment for the inner wall of aluminum alloy pipes features a fixing mechanism driven by a motor to rotate a second connecting rod, which in turn drives a first connecting rod to move a fixing block. The upper part of the fixing block is arc-shaped, which better fits the inner wall of the aluminum alloy pipe, increasing the contact area and improving the stability of the fixing. Furthermore, the sliding seats symmetrically installed on the support base and the sliding blocks on the fixing block cooperate with each other, making the fixing block more stable during movement. In addition, the placement platform in the middle of the support disc further assists in supporting the pipe, preventing the pipe from tilting during fixing. Compared with traditional technology, this fixing method greatly improves the stability and reliability of pipe fixing, ensuring that the pipe will not easily shake during polishing, thereby achieving more efficient and uniform polishing operations and effectively improving the polishing quality of the product.

[0013] 2. This online cleaning and grinding equipment for the inner wall of aluminum alloy pipes uses a hydraulic cylinder to control the extension length of the grinding block, thereby precisely adjusting the grinding depth. The piston rod of the hydraulic cylinder is connected to the connecting seat, which is connected to the grinding block through connecting rod three and connecting rod four. When the hydraulic cylinder is working, the extension and retraction of the piston rod can drive the grinding block to smoothly extend or retract along the sliding groove of the grinding base, realizing the control of the position of the grinding block. This allows the grinding depth to be precisely adjusted according to actual needs. Compared with traditional technology, this grinding depth adjustment method can better meet the grinding requirements of different aluminum alloy pipes, improve the versatility and adaptability of the equipment, and reduce the scrapping of pipes due to improper grinding depth, thus reducing production costs. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the fixing mechanism of this utility model;

[0016] Figure 3 This is an exploded view of the grinding mechanism of this utility model.

[0017] In the diagram: 1. Support base; 2. Column; 3. Motor; 4. Support disc; 5. Fixing block; 6. Link 1; 7. Link 2; 8. Grinding machine housing; 9. Grinding block; 10. Hydraulic cylinder; 11. Lifting plate; 12. Grinding base; 13. Lead screw; 14. Connecting seat; 15. Link 3; 16. Link 4. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 An online cleaning and grinding device for the inner wall of aluminum alloy pipes includes a support base 1 and columns 2. Support legs are fixedly installed on the bottom surface of the support base 1 near the four corners. Columns 2 are symmetrically fixedly installed on the two axial sides of the upper surface of the support base 1. Openings are opened on the opposite surfaces of the two columns 2. Sliding grooves are symmetrically opened on both sides of the opening on one column 2. Threaded holes are opened on the bottom surface of the other column 2. A fixing mechanism is fixedly installed on the upper surface of the support base 1 corresponding to the middle of the two columns 2. A lifting mechanism is installed on the column 2, and a grinding mechanism is installed on the lifting mechanism.

[0020] Furthermore, the fixing mechanism includes a motor 3, a fixing block 5, a first connecting rod 6, and a second connecting rod 7. Sliding seats are symmetrically fixedly installed on the upper surface of the support base 1, corresponding to the middle of the two columns 2. Sliding grooves are symmetrically opened on both sides of the sliding seats. The second connecting rod 7 is rotatably connected between the two sliding seats on the support base 1. A motor 3 is fixedly installed in the middle of the bottom surface of the support base 1. The output shaft of the motor 3 is fixedly connected to the second connecting rod 7. The two ends of the second connecting rod 7 are rotatably connected to the first connecting rod 6. A sliding block is fixedly installed on the bottom surface of the fixing block 5. The sliding block on the fixing block 5 engages with and slides through the sliding grooves on the sliding seats on the support base 1. The upper surface of the fixing block 5... The part is arc-shaped, and rotating blocks are fixedly installed on the opposite planes of the two fixed blocks 5. The other end of the connecting rod 6 is rotatably connected to the rotating block on the fixed block 5. The sliding seats symmetrically installed on the support base 1 not only provide a track for the sliding of the fixed block 5, but also enhance the stability of the fixed block 5 when it moves. When the motor 3 drives the connecting rod 7 to rotate, and drives the connecting rod 6 to push the fixed block 5 to move, the close cooperation between the sliding seat and the sliding block on the bottom surface of the fixed block 5 ensures that the fixed block 5 can accurately approach or move away from the pipe, so that the arc-shaped structure on the upper part of the fixed block 5 fits more tightly with the inner wall of the pipe, ensuring that the pipe will not shake due to unstable fixing during the grinding process.

[0021] Furthermore, connecting shafts are symmetrically fixedly installed on both sides of the sliding strip on the upper surface of the support base 1. Support discs 4 are fixedly installed on the top surface of the four connecting shafts. A through hole is opened in the middle of the plane of the support disc 4. A placement platform is fixedly installed on the inner wall of the hole. The connecting shafts stably fix the support disc 4 on the support base 1. Its height design allows the placement platform in the middle of the support disc 4 to match the fixing block 5 perfectly. The placement platform is used to support the pipe and share part of the weight of the pipe. When the fixing block 5 fixes the pipe, it prevents the pipe from shifting or tilting due to its own weight, further improving the stability of the pipe fixation and creating good conditions for subsequent grinding operations.

[0022] Furthermore, the lifting mechanism includes a motor 3, a lifting plate 11, and a lead screw 13. The lead screw 13 is rotatably connected to the threaded hole on the bottom surface of the column 2. Another motor 3 is fixedly installed on the bottom surface of the support base 1. The output shaft of the motor 3 and the lead screw 13 are coaxially fixedly connected. A threaded hole is opened on one side of the lifting plate 11, and the threaded hole on the lifting plate 11 is threadedly connected to the lead screw 13. A sliding block is fixedly installed on the other side of the lifting plate 11. The sliding block on the lifting plate 11 and the sliding groove plate on the other column 2 are engaged and slidably connected.

[0023] Furthermore, the grinding mechanism includes a grinding machine housing 8, a hydraulic cylinder 10, a grinding base 12, and a connecting seat 14. The bottom surface of the lifting plate 11 is fixedly mounted on the upper part of the fixing mechanism. The grinding base 12 is disc-shaped, with four through sliding grooves circumferentially formed on its flat surface. A through connecting hole is formed in the middle of the flat surface of the grinding base 12. The grinding machine housing 8 is fixedly mounted on the flat surface of the grinding base 12 that is not connected to the lifting plate 11. The grinding machine housing 8 has a hollow internal structure, and four sliding openings circumferentially formed on its outer arc surface. The sliding openings on the grinding machine housing 8 correspond to the sliding grooves on the grinding base 12. The top surface of the lifting plate 11 is fixedly mounted on the hydraulic cylinder 10, and a piston rod is driven to the hydraulic cylinder 10. The piston rod passes through... The grinding base 12 has a connecting hole, and a connecting seat 14 is fixedly installed on the end face of the piston rod of the hydraulic cylinder 10 inside the grinding machine housing 8. Four rotating connecting seats are installed on the connecting seat 14 in a circular pattern. Another connecting seat 14 is fixedly installed on the inner top surface of the grinding machine housing 8. The rotating connecting seats on the two connecting seats 14 correspond one-to-one. The four through sliding grooves opened on the circumference of the grinding base 12 provide a precise track for the movement of the grinding block 9, so that it can move steadily along the radial direction of the sliding groove under the action of the hydraulic cylinder 10 and the connecting rod. The connecting hole in the middle of the grinding base 12 ensures that the piston rod of the hydraulic cylinder 10 can pass through smoothly and connect with the connecting seat 14, thereby transmitting the power of the hydraulic cylinder 10 to the grinding block 9, controlling the extension and retraction of the grinding block 9, and precisely adjusting the grinding depth.

[0024] Furthermore, the grinding mechanism also includes a grinding block 9, a connecting rod 3 15, and a connecting rod 4 16. Sandpaper is fixedly mounted on one side of the grinding block 9, and a groove is formed on the other side. Two rotating shafts are fixedly mounted vertically within the groove. The connecting rod 3 15 is rotatably connected to the rotating connecting seat on the connecting seat 14 of the piston rod on the hydraulic cylinder 10. The other end of the connecting rod 3 15 is rotatably connected to the lower rotating shaft within the grinding block 9. The connecting rod 4 16 is rotatably connected to the rotating connecting seat on the connecting seat 14 of the grinding machine housing 8. The other end of the connecting rod 4 16 is rotatably connected to the upper rotating shaft within the grinding block 9. A rotating block is fixedly mounted in the middle of the plane of the connecting rod 3 15, and a rotating hole is formed in the middle of the plane of the connecting rod 4 16. The grinding block 9 is rotatably connected to the rotating hole on the fourth connecting rod 16. A sliding block is fixedly installed on the upper surface of the grinding block 9. The sliding block on the grinding block 9 is engaged and slidably connected to the sliding groove on the grinding base 12. The grinding block 9 corresponds to the sliding port on the grinding machine housing 8. The sliding block on the upper surface of the grinding block 9 is tightly engaged with the sliding groove of the grinding base 12 to ensure that the grinding block 9 will not leave the track during movement, thus ensuring the stability of the grinding operation. The third connecting rod 15 and the fourth connecting rod 16 not only convert the linear motion of the piston rod of the hydraulic cylinder 10 into the radial motion of the grinding block 9, but also, through the rotatable connection of the rotating block and the rotating hole, they can flexibly adjust the angle of the grinding block 9, so that the sandpaper on the grinding block 9 can better fit the inner wall of the pipe, achieve uniform grinding, and improve the grinding quality.

[0025] Structural Description:

[0026] Support base 1: Support base 1 is the basic support structure of the equipment. It is located at the bottom of the equipment. Support legs are installed near the four corners of its bottom surface to stably support the entire equipment. Columns 2 are symmetrically installed on both sides of the upper surface to provide an installation platform for the various parts of the equipment. At the same time, a fixing mechanism is set in the middle to ensure the stability of the equipment during operation.

[0027] Column 2: Columns 2 are symmetrically distributed on both sides of the upper surface of the support base 1. The two columns 2 have openings on their opposite sides. One column 2 has sliding grooves symmetrically opened on both sides of the opening. The other column 2 has threaded holes on the bottom surface. It is mainly used to install the lifting mechanism and provide guidance and support for the movement of the lifting plate 11.

[0028] Motor 3: There are two motors 3 in the equipment. The motor 3 located in the middle of the bottom surface of the support base 1 has its output shaft connected to the connecting rod 7 to drive the fixed mechanism. The other motor 3 on the bottom surface of the support base 1 has its output shaft coaxially connected to the lead screw 13 to provide power for the lifting of the lifting plate 11 and is the power source for the operation of the equipment.

[0029] Support disc 4: The support disc 4 is installed on both sides of the sliding strip on the upper surface of the support base 1 via a connecting shaft. The disc has a through hole in the middle and a platform is provided on the inner wall of the hole to assist in supporting the pipe. Together with the fixing block 5, it enhances the stability of the pipe when it is fixed and prevents the pipe from tilting.

[0030] Fixed block 5: The sliding block on the bottom surface of fixed block 5 engages with the sliding groove of the sliding seat on the support base 1 and can slide. Its upper part is arc-shaped and can fit against the inner wall of the pipe. The rotating block on the relative plane is connected to the connecting rod 6. Under the drive of motor 3, the pipe is stably fixed through the transmission of connecting rod 6 and connecting rod 7.

[0031] Link 1 6: One end of link 1 6 is rotatably connected to link 2 7, and the other end is rotatably connected to the rotating block on the fixed block 5. When the motor 3 drives link 2 7 to rotate, link 1 6 converts the rotation of link 2 7 into linear movement of the fixed block 5, pushing the fixed block 5 closer to or away from the pipe, thereby fixing and loosening the pipe.

[0032] Link 2 7: Link 2 7 is rotatably connected between two sliding seats on the support base 1. One end is fixed to the output shaft of the motor 3. The motor 3 drives link 2 7 to rotate. As the power transmission component of the fixing mechanism, it pushes the fixing block 5 to move through link 1 6 to complete the fixing operation of the pipe.

[0033] Grinding machine housing 8: The grinding machine housing 8 is fixed on the grinding base 12 and has an internal hollow structure. There are four sliding holes on the outer arc surface, which correspond to the sliding grooves on the grinding base 12. It is used to accommodate components such as the grinding block 9, protect the internal structure, and limit the movement trajectory of the grinding block 9.

[0034] Grinding block 9: Grinding block 9 has sandpaper pasted on one side for grinding the inner wall of the pipe, and a groove is cut on the other side. Two rotating shafts are installed in the groove, which are connected to connecting rod 3 15 and connecting rod 4 16 respectively. The sliding block on it is engaged with the sliding groove of the grinding base 12. Under the drive of hydraulic cylinder 10 and connecting rod, the inner wall of the pipe is ground.

[0035] Hydraulic cylinder 10: The hydraulic cylinder 10 is installed on the top surface of the lifting plate 11. The piston rod passes through the connecting hole of the grinding base 12. A connecting seat 14 is installed at one end inside the grinding machine housing 8. By extending and retracting the piston rod, the connecting seat 14 and connecting rod three 15 and connecting rod four 16 are driven to move, precisely controlling the extension length of the grinding block 9 and adjusting the grinding depth.

[0036] Lifting plate 11: One side of the lifting plate 11 has a threaded hole that is threaded to the lead screw 13, and the sliding block on the other side is engaged with the sliding groove of the column 2. When the motor 3 drives the lead screw 13 to rotate, the lifting plate 11 can move up and down along the column 2, driving the grinding mechanism at the bottom to rise and fall, so as to adapt to the grinding needs of pipes of different lengths.

[0037] Grinding base 12: The grinding base 12 is disc-shaped and fixed to the bottom of the lifting plate 11. It has four through sliding grooves on its flat circumference and a connecting hole in the middle, which provides an installation base for the grinding machine housing 8 and the grinding block 9. The grinding block 9 slides in the sliding grooves and the connecting hole is used for the piston rod to pass through.

[0038] Lead screw 13: Lead screw 13 is rotatably connected in the threaded hole on the bottom surface of column 2. One end is coaxially fixed with the output shaft of motor 3. Motor 3 drives lead screw 13 to rotate, so that lifting plate 11 threadedly connected to lead screw 13 moves up and down along column 2 to adjust the height of the grinding mechanism and meet the grinding requirements of the inner wall of the pipe at different positions.

[0039] Connecting seat 14: Connecting seat 14 is installed on the piston rod end of hydraulic cylinder 10 and the inner top surface of grinding machine housing 8 respectively. Four rotating connecting seats are provided around the circumference to connect connecting rod 3 15 and connecting rod 4 16, transmit the power of hydraulic cylinder 10, and ensure that grinding block 9 moves stably under the drive of connecting rod.

[0040] Link 3 15: One end of link 3 15 is rotatably connected to the rotating connecting seat of the connecting seat 14 on the piston rod of hydraulic cylinder 10, and the other end is rotatably connected to the rotating shaft below the grinding block 9. The rotating block in the middle is engaged with the rotating hole of link 4 16. When the piston rod of hydraulic cylinder 10 extends or retracts, it drives the grinding block 9 to move, adjusting the position and angle of the grinding block 9.

[0041] Link 4 16: One end of link 4 16 is rotatably connected to the rotating connecting seat of the connecting seat 14 on the inner top surface of the grinding machine housing 8, and the other end is rotatably connected to the rotating shaft above the grinding block 9. The rotating hole in the middle cooperates with the rotating block of link 3 15 and works in coordination with link 3 15 to ensure the smooth movement of the grinding block 9 and achieve uniform grinding.

[0042] Working principle: Start the motor 3 located in the middle of the bottom surface of the support base 1. The output shaft of the motor 3 drives the second connecting rod 7 to rotate. When the second connecting rod 7 rotates, the connecting rod 6 connected at both ends moves accordingly. Since the other end of the first connecting rod 6 is rotatably connected to the rotating block on the fixed block 5, and the sliding block on the bottom surface of the fixed block 5 is engaged with the sliding groove of the sliding seat on the support base 1, the first connecting rod 6 pushes the fixed block 5 to move along the sliding groove. The two fixed blocks 5 move relative to each other. The arc-shaped structure on the upper part can closely fit the inner wall of the aluminum alloy tube. At the same time, the platform placed in the middle of the support disc 4 assists in supporting the tube and prevents it from tilting, thereby achieving stable fixation of the tube and providing a stable foundation for subsequent grinding operations.

[0043] To adjust the height of the grinding mechanism, another motor 3 on the bottom of the support base 1 is turned on. The output shaft of the motor 3 is fixedly connected to the lead screw 13 on the same axis. The motor 3 drives the lead screw 13 to rotate. When the lead screw 13 rotates, the lifting plate 11 moves up and down along the column 2 under the action of thread transmission and sliding groove guidance. By controlling the forward and reverse rotation and rotation time of the motor 3, the height of the lifting plate 11 can be precisely adjusted, thereby driving the grinding mechanism installed at its bottom to rise or fall, so that the grinding mechanism can be aligned with different positions on the inner wall of the pipe to meet the grinding needs of pipes of different lengths.

[0044] The hydraulic cylinder 10 on the top surface of the lifting plate 11 is activated, causing the piston rod of the hydraulic cylinder 10 to extend and retract. The piston rod passes through the connecting hole of the grinding base 12, and the connecting seat 14 at its end is rotatably connected to the connecting rod 15. The connecting seat 14 on the top surface inside the grinding machine housing 8 is rotatably connected to the connecting rod 16. The connecting rods 15 and 16 are respectively connected to the upper and lower rotating shafts of the grinding block 9. When the piston rod extends, it pushes the connecting rods 15 and 16 to move, causing the grinding block 9 to extend along the sliding groove of the grinding base 12. When the grinding block 9 is extended, the sandpaper on one side contacts the inner wall of the pipe. When the piston rod retracts, the grinding block 9 retracts. By controlling the extension and retraction of the piston rod of the hydraulic cylinder 10, the extension length of the grinding block 9 can be precisely adjusted to control the grinding depth. During the grinding process, the grinding block 9 moves smoothly along the sliding groove of the grinding base 12 under the linkage of connecting rod 3 15 and connecting rod 4 16, and grinds the inner wall of the pipe evenly to remove impurities such as oxide scale, burrs or welding slag from the inner wall, thereby achieving the purpose of cleaning and grinding.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An online cleaning and grinding device for the inner wall of aluminum alloy pipes, comprising a support base (1) and columns (2), wherein support legs are fixedly installed on the bottom surface of the support base (1) near the four corners, and columns (2) are symmetrically fixedly installed on both sides of the upper surface of the support base (1), and openings are provided on the opposite surfaces of the two columns (2), wherein sliding grooves are symmetrically provided on both sides of the opening on one column (2), and threaded holes are provided on the bottom surface of the other column (2), characterized in that: The upper surface of the support base (1) is fixedly provided with a fixing mechanism corresponding to the middle of the two columns (2), and the column (2) is provided with a lifting mechanism and a grinding mechanism.

2. The online cleaning and grinding equipment for the inner wall of aluminum alloy pipes according to claim 1, characterized in that: The fixing mechanism includes a motor (3), a fixing block (5), a connecting rod one (6), and a connecting rod two (7). A sliding seat is symmetrically fixedly installed on the upper surface of the support base (1) corresponding to the middle of the two columns (2). A sliding groove is symmetrically opened on both sides of the sliding seat. A connecting rod two (7) is rotatably connected between the two sliding seats on the support base (1). A motor (3) is fixedly installed in the middle of the bottom surface of the support base (1). The output shaft of the motor (3) is fixedly connected to the connecting rod two (7). The two ends of the connecting rod two (7) are rotatably connected to the connecting rod one (6). A sliding block is fixedly installed on the bottom surface of the fixing block (5). The sliding block on the fixing block (5) and the sliding groove on the sliding seat on the support base (1) are engaged and slidably connected. The upper part of the fixing block (5) is arc-shaped, and a rotating block is fixedly installed on the plane opposite to the two fixing blocks (5). The other end of the connecting rod one (6) is rotatably connected to the rotating block on the fixing block (5).

3. The online cleaning and grinding equipment for the inner wall of aluminum alloy pipes according to claim 2, characterized in that: The upper surface of the support base (1) is symmetrically fixed with connecting shafts on both sides of the sliding bar on the support base (1). A support disc (4) is fixedly installed on the top surface of the four connecting shafts. A through hole is opened in the middle of the plane of the support disc (4), and a placement platform is fixedly installed on the inner wall of the hole.

4. The online cleaning and grinding equipment for the inner wall of aluminum alloy pipes according to claim 1, characterized in that: The lifting mechanism includes a motor (3), a lifting plate (11), and a lead screw (13). The lead screw (13) is rotatably connected in the threaded hole on the bottom surface of the column (2). Another motor (3) is fixedly installed on the bottom surface of the support base (1). The output shaft of the motor (3) and the lead screw (13) are coaxially fixedly connected. A threaded hole is opened on one side of the lifting plate (11). The threaded hole on the lifting plate (11) is threadedly connected to the lead screw (13). A sliding block is fixedly installed on the other side of the lifting plate (11). The sliding block on the lifting plate (11) and the sliding groove on the other column (2) are engaged and slidably connected.

5. The online cleaning and grinding equipment for the inner wall of aluminum alloy pipes according to claim 4, characterized in that: The grinding mechanism includes a grinding machine housing (8), a hydraulic cylinder (10), a grinding base (12), and a connecting seat (14). The bottom surface of the lifting plate (11) is fixedly installed above the fixing mechanism with the grinding base (12). The grinding base (12) is disc-shaped, and four through sliding grooves are provided on the plane of the grinding base (12) in a circular pattern. A through connecting hole is provided in the middle of the plane of the grinding base (12). The grinding machine housing (8) is fixedly installed on the plane of the grinding base (12) that is not connected to the lifting plate (11). The grinding machine housing (8) has a hollow internal structure, and four through sliding grooves are provided on the outer arc surface of the grinding machine housing (8) in a circular pattern. A sliding port is provided on the grinding machine housing (8) and the sliding groove on the grinding base (12) are corresponding. A hydraulic cylinder (10) is fixedly installed on the top surface of the lifting plate (11). A piston rod is connected to the hydraulic cylinder (10) and passes through the connecting hole on the grinding base (12). A connecting seat (14) is fixedly installed on the end face of the piston rod on the hydraulic cylinder (10) inside the grinding machine housing (8). Four rotating connecting seats are installed on the connecting seat (14) in a circular pattern. Another connecting seat (14) is fixedly installed on the inner top surface of the grinding machine housing (8). The rotating connecting seats on the two connecting seats (14) correspond one-to-one.

6. The online cleaning and grinding equipment for the inner wall of aluminum alloy pipes according to claim 5, characterized in that: The grinding mechanism also includes a grinding block (9), a third connecting rod (15), and a fourth connecting rod (16). Sandpaper is fixedly installed on one side of the grinding block (9), and a groove is opened on the other side. Two rotating shafts are fixedly installed in the groove. The third connecting rod (15) is rotatably connected to the rotating connecting seat on the connecting seat (14) on the piston rod of the hydraulic cylinder (10). The other end of the third connecting rod (15) is rotatably connected to the rotating shaft located below in the grinding block (9). The fourth connecting rod (16) is rotatably connected to the rotating connecting seat on the connecting seat (14) on the outer shell (8) of the grinding machine. The other end of the fourth rod (16) is rotatably connected to the upper rotating shaft inside the grinding block (9), and a rotating block is fixedly installed in the middle of the plane of the third connecting rod (15). A rotating hole is opened in the middle of the plane of the fourth connecting rod (16). The rotating block on the third connecting rod (15) and the rotating hole on the fourth connecting rod (16) are rotatably connected. A sliding block is fixedly installed on the upper plane of the grinding block (9). The sliding block on the grinding block (9) is engaged and slidably connected with the sliding groove on the grinding base (12). The grinding block (9) and the sliding port on the grinding machine housing (8) correspond to each other.

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