A press-fitting device for producing a return valve sleeve

Abstract

The present application relates to valve sleeve production technical field, specifically to a kind of pressure equipment for liquid return valve sleeve production, including workbench, pipe body to be processed and processing equipment main body, the side of workbench is equipped with left and right horizontal movement's moving frame, processing equipment main body is installed on moving frame, high-pressure nozzle is installed on moving frame, the processing surface side of workbench is vertically fixed and installed with mounting seat, one end of pipe body is inserted into the center through-hole of mounting seat, positioning mechanism that is oriented positioning to one end of pipe body is arranged in mounting seat.The positioning mechanism in mounting seat is used, the synchronous movement of multiple racks and limiting roller is utilized, the accurate positioning and stable clamping to one end of pipe body are realized, and the precision and stability of processing are improved;Clamping mechanism uses reciprocating screw rod and moving block driven by first motor, cooperates with L-shaped support block, realizes efficient clamping and convenient release to other end of pipe body, and the conveying and processing of pipe body are facilitated.

Description

Technical Field

[0001] This invention relates to the field of valve sleeve manufacturing technology, and more specifically to a press-fitting device for producing return valve sleeves. Background Technology

[0002] The return valve sleeve is mainly used to control the unidirectional flow of fluid. In the production process, the return valve sleeve is usually made of hollow tubes made of stainless steel, carbon steel or alloy steel. First, the hollow tube is processed, and then cut into the shape of the valve sleeve according to the set size and shape. When the hollow tube is processed on the machine tool, a bar stocker is usually required to press and clamp the hollow tube on the spindle, and then turn, grind, cut, drill and other operations are performed.

[0003] A Chinese patent with publication number CN219325066U discloses a stainless steel pipe processing and polishing mechanism, including a machine body, a water tank at the bottom of the operating table, a circulating water pump at the top of the machine body, a water pipe below the circulating water pump, a nozzle below the water pipe, a first motor on the right side of the circulating water pump, a first connecting rod below the first motor, a rotating wheel below the first connecting rod, a fixing plate on the right side of the machine body, a second motor on the right side of the fixing plate, a second connecting rod on the left side of the fixing plate, a polishing wheel at the left end of the second connecting rod, a grinding wheel on the left side of the polishing wheel, bolts inside the fixing plate, and fixing rings on the outer sides of the polishing wheel and the grinding wheel. The circulating water pump and nozzle can cool the steel pipe, preventing damage from excessive heat. The first motor and rotating wheel enable the device to automatically pull the steel pipe, reducing labor intensity.

[0004] In the aforementioned technology, the stainless steel pipe is fixed and transported by two rotating wheels during processing. Since the stainless steel pipe is hollow, when water is sprayed, the water will spray out from one end of the stainless steel pipe, which can easily spray onto the workbench and the ground, causing environmental pollution. In addition, iron filings are also sprayed out with the water. The iron filings flow onto the workbench and can easily get stuck in the transmission structure, causing the transmission mechanism to jam. Furthermore, during cleaning, the small iron filings may cut the operator's hands, posing a safety hazard. Summary of the Invention

[0005] To address the aforementioned defects and problems, this invention provides a press-fitting device for producing return valve sleeves. Through the rational design and coordinated operation of each mechanism, it achieves precise positioning, stable clamping, efficient processing, and environmental safety during the production and processing of return valve sleeves, demonstrating significant practical value and promising prospects for widespread application.

[0006] The solution adopted by this invention to solve its technical problem is: a press-fitting device for producing return valve sleeves, including a workbench, a tube to be processed, and a processing equipment body. A horizontally movable frame is installed on the side of the workbench, and the processing equipment body is installed on the movable frame. A high-pressure nozzle is installed on the movable frame. A mounting base is vertically fixed on one side of the processing surface of the workbench. One end of the tube is inserted into the central through hole of the mounting base. A positioning mechanism is provided in the mounting base to guide and position one end of the tube. A conveyor body is provided on the other side of the workbench. A second cylinder is horizontally fixed to the side wall of the conveyor body away from the workbench through an L-shaped plate. A movable cylinder is fixed to the output end of the second cylinder. The conveyor body transports the tube to the middle position of the conveyor body. At this time, the center of the tube, the second cylinder, the movable cylinder, and the mounting base are on a straight line. A clamping mechanism is provided in the movable cylinder. The clamping mechanism is used to fit and fix the other end of the tube. The second cylinder is used to drive the tube to move between the workbench and the conveyor body. A sealing mechanism is provided on the outside of the mounting base. The sealing mechanism includes a pen-shaped cylinder, an adapter, and a glue plug. The pen-shaped cylinder is horizontally fixedly connected to the side wall of the mounting base away from the tube body. An adapter is fixedly connected to the output end of the pen-shaped cylinder. A glue plug is rotatably connected to the adapter via a rotating shaft. The glue plug is used to seal the end of the tube body.

[0007] Furthermore, the mounting base has a through hole in its center, and multiple sliding ports are provided through the through hole inside the mounting base. The positioning mechanism includes multiple racks that are directionally slidably connected to the through hole through the sliding ports. Limiting rollers are installed on the inner ends of the racks, and the limiting rollers are circumferentially located on the outer side of the end of the tube. A driving mechanism for driving the multiple racks to move synchronously is also provided on the mounting base.

[0008] Furthermore, the clamping mechanism includes a first motor installed inside the movable cylinder, the output shaft of the first motor is fixedly connected to a reciprocating lead screw, a moving block is threadedly connected to the reciprocating lead screw, a plurality of limiting ports are opened on the side wall of the movable cylinder near the tube body, an L-shaped support block is slidably connected in the limiting ports, the L-shaped support block and the moving block are hinged by a connecting rod, and anti-slip texture is provided on the outer wall of the L-shaped support block.

[0009] Furthermore, the driving mechanism includes an annular plate disposed on the inner wall of the through hole. The annular plate is rotatably connected with a plurality of toothed columns that correspond one-to-one with the positions of the racks in a circumferentially equidistant manner. Each rack meshes with its corresponding toothed column. An internal toothed ring is rotatably connected to the inner wall of the through hole. The plurality of toothed columns mesh with the internal toothed ring. A first cylinder is fixedly mounted on the top of the mounting base. The output end of the first cylinder movably passes through the through hole and is connected to the outer end of any rack.

[0010] Furthermore, an external gear ring is provided on the outer wall of the movable cylinder, and a connecting plate is fixedly connected to the output end of the second cylinder. A second motor is installed on the connecting plate, and a gear is fixedly fitted on the output shaft of the second motor. The gear meshes with the external gear ring and is used to drive the movable cylinder to rotate the tube.

[0011] Furthermore, multiple third cylinders are vertically arranged on the processing surface of the workbench. A V-shaped plate is fixedly connected to the upper output end of the third cylinder. Multiple guide rollers are rotatably connected to the inner side wall of the V-shaped plate. The V-shaped block is used to transfer the conveying tube.

[0012] Furthermore, the high-pressure nozzle is located near the main body of the processing equipment, with the water spray direction facing the processing position. The high-pressure nozzle moves with the main body of the processing equipment, and multiple filter holes are opened on the processing surface of the worktable, which are connected to the collection box.

[0013] Furthermore, a baffle is rotatably connected to the conveyor body via a pin, the baffle is arranged along the extension and retraction direction of the second cylinder, and a drive motor is provided at one end of the pin.

[0014] The beneficial effects of this invention are: Precise positioning and stable clamping: Through the positioning mechanism inside the mounting base, the synchronous movement of multiple racks and limiting rollers is used to achieve precise positioning and stable clamping of one end of the tube, thereby improving the accuracy and stability of the processing. Efficient clamping and convenient release: The clamping mechanism adopts a reciprocating lead screw and moving block driven by the first motor, in conjunction with an L-shaped support block, to achieve efficient clamping and convenient release of the other end of the tube, which facilitates the transport and processing of the tube. Flexible rotation machining: The gears and external gear rings driven by the second motor enable flexible rotation of the movable cylinder and tube, meeting the needs of different machining positions and improving machining efficiency and quality; Environmental protection and safety: The high-pressure nozzles are located near the main body of the processing equipment, with the water spray direction towards the processing position. Together with the filter holes and collection box on the workbench, they can effectively collect wastewater and iron filings generated during the processing, reducing environmental pollution and safety hazards. The sealing mechanism can flexibly seal the end of the pipe according to the processing needs of the pipe, preventing water and iron filings from entering the pipe or spraying onto the workbench and the ground during the processing, adapting to different processing scenarios.

[0015] High degree of automation: The structure is compact and the layout is reasonable. The components are arranged in a compact manner, which saves space and facilitates installation and maintenance. Furthermore, the various mechanisms are automatically linked through drive components such as cylinders and motors, which improves production efficiency and reduces labor intensity. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial cross-sectional structural schematic diagram of the present invention; Figure 3 This is a schematic cross-sectional view of the hollow tube of the present invention; Figure 4 This is a schematic diagram of the mounting base in this invention; Figure 5 This is a schematic diagram of the mating structure of the toothed column and the internal toothed ring in this invention; Figure 6 This is a schematic diagram of the structure of the gear and external gear ring in this invention; Figure 7 This is a schematic diagram of the L-shaped support block in this invention; Figure 8 This is a schematic diagram of the V-shaped plate in this invention; In the diagram: 1. Workbench; 11. Water inlet; 12. Filter hole; 13. Protective frame; 14. Collection box; 2. Mounting base; 21. First cylinder; 22. Rack; 23. Limiting roller; 24. Gear column; 25. Internal gear ring; 26. Sliding port; 27. Pen-shaped cylinder; 28. Glue plug plate; 29. ​​Adapter; 210. Ring plate; 3. Pipe body; 4. Movable cylinder; 41. L-shaped support block; 42. Reciprocating screw; 43. Circular plate; 44. First motor; 45. Moving block; 46. Connecting rod; 47. Limiting port; 5. Second cylinder; 51. External gear ring; 52. Gear; 53. Connecting plate; 54. Second motor; 6. Conveyor body; 61. Baffle; 7. Moving frame; 71. Main body of processing equipment; 72. High-pressure nozzle; 8. Third cylinder; 81. V-shaped plate; 82. Guide roller. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please see Figure 1-8 This invention provides a technical solution for a press-fitting device for producing return valve sleeves: Example 1

[0019] according to Figure 1 and Figure 2As shown, a press-fitting device for producing return valve sleeves includes a workbench 1 and a tube 3 to be processed. A mounting base 2 is vertically fixed at one end of the top of the workbench 1, and one end of the tube 3 is inserted into the interior of the mounting base 2. A positioning mechanism for fixing the tube 3 is provided inside the mounting base 2. A conveyor body 6 is provided on the other side of the workbench 1. An L-shaped plate is fixedly welded to the side wall of the conveyor body 6 away from the workbench 1. A second cylinder 5 is horizontally fixedly connected to the conveyor body 6 through the L-shaped plate. The second cylinder 5 is used to drive the tube 3 to move between the workbench and the conveyor body. A movable cylinder 4 is fixedly connected to the output end of the second cylinder 5, and a clamping mechanism is provided inside the movable cylinder 4. During use, it is used to connect and fix the other end of the tube 3 inside, facilitating stable transport. The tube 3 is transported to the middle position of the conveyor body 6, at which point the centers of the tube 3, the second cylinder 5, and the mounting base 2 are all on a straight line. A movable frame 7 (not shown in the attached diagram) is slidably connected to one side of the worktable 1 via an electric slide rail. The processing equipment body 71 is mounted on the movable frame 7 and is located next to the tube 3. During use, the processing equipment body 71 is used to process the tube 3. This processing equipment body 71 can be configured as single-head or multi-head, facilitating turning, grinding, cutting, and drilling of the tube 3. Because the tube body 3 needs to rotate during processing, and after processing, it needs to retract onto the conveyor body 6 via the second cylinder 5 for transport, the movable cylinder 4 should be clamped and fixed to one end of the tube body 3. Specifically... Figure 6 and Figure 7 As shown, a first motor 44 is fixedly connected to the inner wall of the movable cylinder 4. The output shaft of the first motor 44 is fixedly connected to a reciprocating screw 42. A circular plate 43 is fixedly connected to the inner wall of the movable cylinder 4. The two ends of the reciprocating screw 42 are rotatably connected to the circular plate 43 and the movable cylinder 4 respectively through bearings. A moving block 45 is threadedly connected to the reciprocating screw 42. Multiple limiting ports 47 are opened on the side wall of the movable cylinder 4 near the tube body 3. An L-shaped support block 41 is slidably connected in each limiting port 47. The inner end of the L-shaped support block 41 is rotatably connected to a connecting rod 46 through a pin. The other end of the connecting rod 46 is rotatably connected to the moving block 45 through a pin. Anti-slip textures are opened on the outer wall of the L-shaped support block 41. By activating the first motor 44, the output shaft of the first motor 44 drives the reciprocating lead screw 42 to rotate. The reciprocating lead screw 42 drives the moving block 45 to move. The moving block 45 drives one end of the connecting rod 46 to move. The connecting rod 46 pushes the L-shaped support block 41 to move. Since the L-shaped support block 41 slides on the limiting port 47, and both ends of the connecting rod 46 are equipped with pivot pins, the connecting rod 46 drives the L-shaped support block 41 to slide along the limiting port 47. When the L-shaped support block 41 is in close contact with the inner wall of the tube 3, the tube 3 can be clamped and fixed by the L-shaped support block 41, which facilitates the movement of the tube 3. When the L-shaped support block 41 is not in contact with the inner wall of the tube 3, it facilitates the separation of the movable cylinder 4 and the tube 3.

[0020] An external gear ring 51 is fixedly connected to the outer wall of the movable cylinder 4. A connecting plate 53 is fixedly connected to the output end of the second cylinder 5. A second motor 54 is installed on the connecting plate 53. A gear 52 is fixedly fitted on the output shaft of the second motor 54, and the gear 52 meshes with the external gear ring 51. When the tube body 3 needs to be rotated, the second motor 54 is turned on. The output shaft of the second motor 54 drives the gear 52 to rotate, which in turn drives the external gear ring 51 to rotate. The external gear ring 51 then drives the movable cylinder 4 to rotate, which in turn drives the L-shaped support block 41 to rotate the tube body 3, thus achieving the processing effect on different positions of the tube body 3.

[0021] like Figure 4 As shown, a through hole is provided on the mounting base 2. A ring plate 210 is fitted and fixed to the inner wall of the through hole. Four toothed pins 24 are rotatably connected to the side wall of the ring plate 210 away from the movable cylinder 4 via a rotating shaft. The four toothed pins 24 are evenly spaced and circumferentially distributed in the through hole. An internal toothed ring 25 is also rotatably connected to the inner wall of the through hole via a bearing. All four toothed pins 24 mesh with the internal toothed ring 25. Four sliding ports 26 are provided in the mounting base 2 through the through hole. The sliding ports 26 are connected to the through hole of the mounting base 2 via a sliding port. The opening 26 is slidably connected to four racks 22, and the four racks 22 are respectively engaged with four toothed posts 24 at corresponding positions; a limit roller 23 is installed at the inner end of each rack 22, and the limit rollers 23 are evenly arranged circumferentially on the outer side of the end of the tube body 3. The tube body 3 can be clamped and fixed by the limit rollers. A first cylinder 21 is fixedly installed on the top of the mounting base 2. The output end of the first cylinder 21 moves through the through hole and is fixedly connected to the top of the rack 22 located above.

[0022] If the tube body 3 is directly pressed into the spindle during the pressing process, a large force is required for insertion and removal, which not only reduces work efficiency but also reduces the service life of the second cylinder 5. Therefore, the second cylinder 5 drives one end of the tube 3 to move into the through hole of the mounting base 2, and then the first cylinder 21 is turned on. The output end of the first cylinder 21 drives the connected rack 22 to move. When the rack 22 moves, it drives the connected rack 24 to rotate through meshing with the corresponding rack 24. When the rack 24 rotates, it can drive the inner gear ring 25 to rotate. The inner gear ring 25 drives the other racks 24 to rotate. The other racks 24 drive the other racks 22 to move, so that the four racks 22 can move synchronously. The racks 22 drive the connected limiting roller 23 to move inward until the limiting roller 23 clamps and fixes the tube 3 in the mounting base 2. When the tube 3 moves in the mounting base 2, the limiting roller 23 rolls on the surface of the tube 3, which plays a limiting and guiding role, and achieves precise positioning of the tube 3.

[0023] In practical use, the press-fitting device for producing a return valve sleeve of the present invention first transports the pipe body 3 to the middle position of the processing table by the conveyor body 6, aligning it with the axis of the worktable. Then, the second cylinder 5 pushes the movable cylinder 4 forward to extend into the rear end of the pipe body 3. Next, the first motor 44 is turned on, and the output shaft of the first motor 44 drives the reciprocating screw 42 to rotate. The reciprocating screw 42 drives the moving block 45 to move. Through the coordinated movement of the moving block 45 and the connecting rod 46, the L-shaped support block 41 is pushed to move outward and expand. After the L-shaped support block 41 is in close contact with the inner wall of the pipe body 3, the L-shaped support block 41 is pushed to move outward and expand. L-shaped support block 41 clamps and fixes tube body 3, then the second cylinder 5 continues to push tube body 3 forward until the front end of tube body 3 is inserted into the through hole. Then the first cylinder 21 is turned on. The output end of the first cylinder 21 drives the connected rack 22 to move. When the rack 22 moves, it drives the connected tooth column 24 to rotate. Through the mutual meshing of rack 22, tooth column 24 and inner tooth ring 25, the power is transmitted to drive all racks 22 to move synchronously towards the center of the through hole. Through the rack 22, the connected limiting roller 23 moves until the tube body 3 is positioned in the mounting seat 2, realizing the press clamping of tube body 3. Then, the tube body 3 is processed by the main body 71 of the processing equipment. When the tube body 3 needs to be rotated, the second motor 54 is turned on. The output shaft of the second motor 54 drives the gear 52 to rotate. The gear 52 drives the external gear ring 51 to rotate. The external gear ring 51 drives the movable cylinder 4 to rotate. The movable cylinder 4 drives the L-shaped support block 41 to rotate the tube body 3, thereby achieving the processing effect of different positions of the tube body 3. After the tube body 3 is processed, the clamping mechanism releases the front end of the tube body 3, the second cylinder 5 retracts, and the tube body 3 is driven back to the conveyor body 6 by the L-shaped support block 41 of the movable cylinder 4 and conveyed forward. Example 2

[0024] Based on Example 1, during the processing, the pipe body 3 needs to be cooled and cleaned. Therefore, a high-pressure nozzle 72 is installed on the movable frame 7. The high-pressure nozzle 72 is located near the main body 71 of the processing equipment, and the water spray direction is towards the processing position of the main body of the processing equipment. The high-pressure nozzle 72 is connected to an external water source through a water pipe, and the high-pressure nozzle 72 moves with the movement of the main body 71 of the processing equipment. During the processing of the pipe body 3, the high-pressure nozzle 72 is turned on to spray water onto the pipe body 3 to spray and cool and clean the pipe body 3. By spraying water onto the pipe body 3 through the high-pressure nozzle 72, not only can the iron filings on the surface be cleaned, but the temperature can also be reduced, achieving the cooling and protection effect of the pipe body 3.

[0025] A water passage hole 11 is provided on the workbench 1 at the outer side of the mounting base. The water passage hole 11 is located below the end of the pipe body 3. Multiple filter holes 12 are provided on the machined surface of the workbench 1. A collection box 14 is provided at the bottom of the workbench 1. The collection box 14 has an inverted conical structure and is located below the workbench 1. The water passage hole 11 and the filter holes 12 are all connected to the collection box 14. The collection box is used to collect the water left on the workbench 1. A protective frame 13 is provided around the machined surface of the workbench 1. When in use, the water passage 11 facilitates water outlet from one end of the pipe body 3, the filter hole 12 facilitates the outflow of processing debris and sprayed water, the collection box 14 facilitates the recycling of wastewater and debris, and the protective frame 13 reduces the spraying of wastewater and debris. Example 3

[0026] Based on Example 2, when the outer surface of the pipe body 3 is being polished, a sealing mechanism is provided to prevent debris or water sprayed from the high-pressure nozzle 72 from splashing into the interior of the pipe body 3 from both ends and making it difficult to clean; or when the inner wall of the pipe body 3 is being processed, a sealing mechanism is provided to prevent water from flowing directly out of the pipe body 3. The sealing mechanism is located at one end of the pipe body 3 and is used to seal the end of the pipe body; such as Figure 2 and Figure 3 As shown, the sealing mechanism includes a pen-shaped cylinder 27, an adapter 29, and a glue plug 28. The pen-shaped cylinder 27 is fixedly connected to the side wall of the mounting base 2 away from the tube body 3. The output end of the pen-shaped cylinder 27 is fixedly connected to the adapter 29. The glue plug 28 is rotatably connected to the adapter 29 via a rotating shaft, and the glue plug 28 can fit tightly against the end of the tube body 3.

[0027] During the processing of the inner wall of the return valve sleeve tube 3, the processing equipment body 71 and the high-pressure nozzle 72 are located inside the tube body. The processing equipment body 71 processes the tube body 3. During the processing, the high-pressure nozzle 72 needs to be turned on to spray water onto the tube body 3 to cool and clean it. When spraying water, the water flow can easily spray out from one end of the tube body 3, splashing onto the workbench 1 and the ground, causing environmental pollution. The sealing mechanism provided by this invention activates the pen-shaped cylinder 27 during use. The output end of the pen-shaped cylinder 27 drives the adapter 29 to move, and the adapter 29 drives the rubber plug 28 to move. The adapter 29 and the rubber plug 28 seal one end of the tube body 3, so that when the tube body 3 is processed, water will not spray out of the tube body 3 during high-pressure water rinsing. After processing, the adapter 29 and the rubber plug 28 leave the tube body 3 under the drive of the pen-shaped cylinder 27. The waste liquid in the tube body 3 flows into the water passage hole 11 through the tail of the tube body 3 and finally flows into the collection box 14. When the outer wall of the tube body 3 of the return valve sleeve is being processed, the processing equipment body 71 and the high-pressure nozzle 72 are located outside the tube body. When the high-pressure nozzle 72 sprays water, the water flow can easily splash into the inside of the tube body 3, making it difficult to clean the inside of the tube body. When the sealing mechanism provided by the present invention is in use, the output end of the pen-shaped cylinder 27 drives the adapter 29 to move, and the adapter 29 drives the rubber plug 28 to move. The adapter 29 and the rubber plug 28 seal one end of the tube body 3, so that when the tube body 3 is being processed, water will not splash into the tube body 3 when the high-pressure water is rinsing the tube body 3. Example 4

[0028] Based on Example 1, this example further describes the conveyor body 6.

[0029] like Figure 1 As shown, a baffle 61 is rotatably connected to the conveyor body 6 via a pin. The baffle 61 is arranged along the extension and retraction direction of the second cylinder 5, and a drive motor is provided at one end of the pin.

[0030] The baffle 61 provided in this embodiment is used to position the tube 3 during use, ensuring that the center line of the tube 3 coincides with the center line of the second cylinder 5. The conveyor body 6 is a small machine body located on one side of the bar stocker. The bar stocker feeds the tubes one by one to one end of the conveyor body 6. At the same time, the other end of the conveyor body 6 is used to transport the processed tubes 3, thereby improving work efficiency. Example 5

[0031] Based on Example 1, in order to further improve the stability of the tube body 3 when it moves toward the mounting base 2, such as... Figures 1 to 2As shown, two third cylinders 8 are vertically installed on the processing surface of the workbench 1. A V-shaped plate 81 is fixedly connected to the upper output end of the third cylinder 8. Multiple guide rollers 82 are rotatably connected to the inner side wall of the V-shaped plate 81. The V-shaped block provided by the present invention is used to convey the tube 3 during use. By opening the third cylinder 8, the V-shaped tube is adjusted to a suitable height to ensure that the tube 3 is conveyed horizontally along the center during pushing, preventing the tube 3 from falling during pushing, and reducing the friction of the tube 3 during conveying under the action of the guide rollers 82.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A press-fitting device for producing return valve sleeves, comprising a worktable, a tube to be processed, and a processing equipment body, wherein a horizontally movable frame is mounted on the side of the worktable, the processing equipment body is mounted on the movable frame, and a high-pressure nozzle is mounted on the movable frame, characterized in that, A mounting base is vertically fixed on one side of the processing surface of the workbench. One end of the tube is inserted into the central through hole of the mounting base. A positioning mechanism is provided in the mounting base to guide and position one end of the tube. A conveyor body is provided on the other side of the workbench. A second cylinder is horizontally fixed to the side wall of the conveyor body away from the workbench via an L-shaped plate. A movable cylinder is fixed to the output end of the second cylinder. The conveyor body transports the tube to the middle position of the conveyor body. At this time, the center of the tube, the second cylinder, the movable cylinder and the mounting base are on a straight line. A clamping mechanism is provided in the movable cylinder. The clamping mechanism is used to fit and fix the other end of the tube. The second cylinder is used to drive the tube to move between the workbench and the conveyor body. The clamping mechanism includes a first motor installed inside the movable cylinder. The output shaft of the first motor is fixedly connected to a reciprocating lead screw. A moving block is threaded onto the reciprocating lead screw. Multiple limiting ports are opened on the side wall of the movable cylinder near the tube body. An L-shaped support block is slidably connected within the limiting ports. The L-shaped support block and the moving block are hinged together by a connecting rod. Anti-slip textures are provided on the outer wall of the L-shaped support block. An external gear ring is provided on the outer wall of the movable cylinder. A connecting plate is fixedly connected to the output end of the second cylinder. A second motor is mounted on the connecting plate. A gear is fixedly fitted on the output shaft of the second motor, and the gear meshes with the external gear ring to drive the movable cylinder to rotate the tube body. Multiple third cylinders are vertically arranged on the processing surface of the worktable. A V-shaped plate is fixedly connected to the upper output end of the third cylinder. Multiple guide rollers are rotatably connected to the inner side wall of the V-shaped plate. The V-shaped block is used to convey the tube body. A baffle is rotatably connected to the conveyor body by a pin. The baffle is arranged along the extension and retraction direction of the second cylinder. A drive motor is provided at one end of the pin. A sealing mechanism is provided on the outside of the mounting base. The sealing mechanism includes a pen-shaped cylinder, an adapter, and a glue plug. The pen-shaped cylinder is horizontally fixedly connected to the side wall of the mounting base away from the tube body. An adapter is fixedly connected to the output end of the pen-shaped cylinder. A glue plug is rotatably connected to the adapter via a rotating shaft. The glue plug is used to seal the end of the tube body.

2. The press-fitting device for producing a return valve sleeve according to claim 1, characterized in that, The mounting base has a through hole in its center, and multiple sliding ports are provided through the through hole inside the mounting base. The positioning mechanism includes multiple racks that are directionally slidably connected to the through hole through the sliding ports. Limiting rollers are installed on the inner ends of the racks, and the limiting rollers are circumferentially located on the outer side of the end of the tube. A drive mechanism for driving the multiple racks to move synchronously is also provided on the mounting base.

3. The press-fitting device for producing a return valve sleeve according to claim 2, characterized in that, The driving mechanism includes an annular plate disposed on the inner wall of the through hole. The annular plate is rotatably connected with a plurality of toothed columns that correspond one-to-one with the positions of the racks. Each rack meshes with its corresponding toothed column. An inner toothed ring is rotatably connected to the inner wall of the through hole. The plurality of toothed columns mesh with the inner toothed ring. A first cylinder is fixedly mounted on the top of the mounting base. The output end of the first cylinder movably passes through the through hole and is connected to the outer end of any rack.

4. The press-fitting device for producing a return valve sleeve according to claim 1, characterized in that, The high-pressure nozzle is located near the main body of the processing equipment, with the water spray direction facing the processing position. The high-pressure nozzle moves with the main body of the processing equipment. Multiple filter holes are opened on the processing surface of the workbench, and the filter holes are connected to the collection box.

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