A hole expansion processing device for air conditioning refrigeration copper tube

Abstract

The invention discloses a hole expanding processing device for air-conditioning refrigeration copper tubes, which belongs to the technical field of refrigeration copper tube processing. The technical points are: comprising a workbench, a clamping control mechanism can well reduce the risk of work-related injuries, an annular cutting mechanism can make the incision of the copper tube more flat and smooth, which is beneficial to subsequent processing and assembly, a grinding and hole expanding mechanism can enable the same device to cope with a variety of copper tube processing tasks with different specifications and requirements, and improve the processing flexibility and adaptability of the equipment, and a station switching mechanism can be used to switch between the annular cutting mechanism and the grinding and hole expanding mechanism at will, without replacing the entire device or adjusting the settings for a long time, and multiple processes such as cutting, deburring and hole expanding can be continuously completed on the same machine, which significantly shortens the production cycle and improves the overall processing efficiency, and has the advantages of being easy to automatically perform annular cutting, grinding and hole expanding processing and a high degree of automation.

Description

Technical Field

[0001] The invention relates to the field of refrigeration copper tube processing, and in particular to a hole expanding processing device for air-conditioning refrigeration copper tubes. Background Art

[0002] In the field of modern refrigeration technology, air conditioning refrigeration copper tubes play a vital role. As one of the core components in the air conditioning refrigeration system, the copper tube is not only responsible for transmitting refrigerant, but also bears the heavy responsibility of maintaining efficient operation and stable performance of the system. Therefore, the processing of air conditioning refrigeration copper tubes is a key link. Its quality and performance directly affect the efficiency and stability of the entire refrigeration system. Hole expansion is an important step in copper tube processing, which determines the connection quality and sealing of the copper tube and other components in the system.

[0003] At present, the traditional technology needs to pre-cut a part of the head of the copper tube when expanding the hole of the air-conditioning refrigeration copper tube, that is, it is necessary to manually hold the circular cutting tool to deepen the depth step by step and rotate continuously to complete the cutting operation of the copper tube, which is labor-intensive. Some also use electric cutting blades for cutting. However, during the cutting process, if the force or angle is not properly controlled, it may cause damage to the internal structure of the copper tube, deformation, cracks and other problems. At the same time, the cutting knife may cause the copper tube mouth to be uneven, increasing the difficulty and leakage risk during connection. In addition, when expanding the hole of the copper tube, the interface of the copper tube needs to be polished for better expansion. However, in many cases, this step is directly omitted for simplicity of operation, resulting in the interface of the copper tube not being smooth enough to meet the actual use requirements.

[0004] Therefore, it is necessary to provide a hole expansion processing device for air-conditioning refrigeration copper tubes to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, an embodiment of the present invention aims to provide a hole expansion processing device for air-conditioning refrigeration copper tubes, aiming to solve the technical problems raised in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A hole expansion processing device for air conditioning refrigeration copper tubes, comprising a workbench, a support leg for supporting is arranged at the bottom of the workbench, a three-jaw chuck for clamping and fixing the copper tube to be processed is arranged on the workbench, the three-jaw chuck is movably mounted on the workbench through a first support seat, and further comprising:

[0008] A clamping control mechanism, which is installed on the first support seat and is used to control the rotation and linear movement of the copper tube to be processed;

[0009] An annular cutting mechanism is installed on the second support seat, and is used for annular cutting of the copper tube to be processed. The annular cutting mechanism includes a driving connecting rod and a lifting plate for cutting processing. The driving connecting rod is rotatably installed in the second support seat through a first rotating shaft. One end of the driving connecting rod is provided with a first cutting blade for cutting. The lifting plate is movably installed on the second support seat. One end of the lifting plate is provided with a second cutting blade for cutting. The first cutting blade and the second cutting blade are arranged around and in contact with the outer layer of the copper tube to be processed.

[0010] A grinding and reaming mechanism, which is installed on the third support seat and is used for grinding and reaming the cut copper tube to be processed. The grinding and reaming mechanism includes a scraper for grinding and a reaming drill for reaming. The scraper and the reaming drill are both movably installed on a rotating connecting plate, and the rotating connecting plate is rotatably installed on the third support seat;

[0011] A workstation switching mechanism is installed on a workbench and is used to switch the workstations of an annular cutting mechanism and a grinding and reaming mechanism for processing. The workstation switching mechanism includes a first traction plate, a second traction plate and a conveyor belt for workstation switching. The first traction plate is movably installed at the bottom of the second support seat, and the second traction plate is movably installed at the bottom of the third support seat. The first traction plate and the second traction plate are both connected to the workbench through a conveyor belt transmission. A driving groove for workstation switching avoidance connection is also provided on the workbench, and a first area, a second area and a third area are provided on the driving groove.

[0012] As a further solution of the present invention, the annular cutting mechanism also includes a wedge-shaped drive block and a third motor for depth adjustment of cutting. The other end of the drive connecting rod is rotatably connected to a guide wheel, and the guide wheel is adapted to be slidably connected to the wedge-shaped drive block. The wedge-shaped drive block is symmetrically and fixedly connected to both sides of the lifting plate. The lifting plate is slidably connected to the interior of the second support seat through a guide plate. A limiting spring is provided at the internal connection between the drive connecting rod and the second support seat. The lifting plate is threadedly connected to the second screw rod, and the second screw rod is fixedly connected to the output shaft of the third motor. The third motor is fixedly installed inside the second support seat.

[0013] As a further solution of the present invention, the annular cutting mechanism also includes a first material guide pipe and a first collecting box for storing waste. The first material guide pipe is fixedly installed on one side of the second support seat through a first fixed plate. The first material guide pipe is connected to the interior of the first collecting box. The second support seat and the first collecting box are both fixedly installed on the first support plate.

[0014] As a further solution of the present invention, the grinding and reaming mechanism also includes a sixth motor and an electric push rod for reaming drive, the reaming drill is fastened to the second rotating shaft by a first fastening bolt, the second rotating shaft is fixedly connected to the output shaft of the sixth motor, the sixth motor is fixedly connected to the piston rod of the electric push rod, and the electric push rod is fixedly installed on the outer side of the rotating connecting plate through a mounting frame.

[0015] As a further solution of the present invention, the grinding and reaming mechanism also includes a fifth motor for driving the rotating connecting plate to rotate, the rotating connecting plate is fixedly connected to the output shaft of the fifth motor, the fifth motor is fixedly installed inside the third support seat, the scraper is fixedly connected to the mounting plate, the mounting plate is fastened to the fixing column by a second fastening bolt, and the fixing column is fixedly installed on the mounting frame.

[0016] As a further solution of the present invention, the grinding and expanding mechanism also includes a second material guide pipe and a second collection box for storing waste materials. The second material guide pipe is fixedly installed on one side of the third support seat through a second fixed plate. The second material guide pipe is connected to the interior of the second collection box. The third support seat and the second collection box are both fixedly installed on the third support plate.

[0017] As a further solution of the present invention, the work station switching mechanism also includes a first slide rail, a first sliding rod, a second support plate and a second slide rail for driving the second support seat to move the work station. The second slide rail is fixedly installed on the workbench. The second slide rail is slidingly connected to the second support plate in an upper limit position. The second support plate is fixedly connected to the first traction plate and the first slide rail. The first slide rail is slidingly connected to the bottom of the first support plate in a limited position. The first sliding rod is fixedly connected to the first support plate. The first slide rail is provided with a first avoidance groove for avoiding the first sliding rod, and the first sliding rod is adapted to be slidably connected to the driving groove.

[0018] As a further solution of the present invention, the work station switching mechanism also includes a third slide rail, a second sliding rod, a fourth support plate and a fourth slide rail for driving the third support seat to move the work station. The fourth slide rail is fixedly installed on the workbench. The fourth slide rail is slidingly connected to the upper limit position with the fourth support plate. The second traction plate and the third slide rail are fixedly connected to the fourth support plate. The third slide rail is slidingly connected to the bottom of the third support plate. The second sliding rod is fixedly connected to the third support plate. The third slide rail is provided with a second avoidance groove for avoiding the second sliding rod. The second sliding rod is adapted to be slidably connected to the driving groove.

[0019] As a further solution of the present invention, the workstation switching mechanism also includes a fourth motor for driving the first traction plate and the second traction plate to move linearly, the first traction plate and the second traction plate are both fixedly connected to the conveyor belt, and the workbench is provided with a groove for adapting to the sliding connection of the first traction plate and the second traction plate, the conveyor belt is transmission-connected to the first pulley and the second pulley, the first pulley and the second pulley are both rotatably installed on the workbench, the first pulley is fixedly connected to the output shaft of the fourth motor, and the fourth motor is fixedly installed on the workbench.

[0020] As a further solution of the present invention, the clamping control mechanism includes a second motor for controlling the rotation of the three-jaw chuck and a first motor for controlling the linear movement of the copper tube to be processed. A rotating mounting seat is fixedly installed on one side of the three-jaw chuck, and a plurality of teeth meshing with a driving gear are provided on the rotating mounting seat. The driving gear is fixedly connected to the output shaft of the second motor. The rotating mounting seat is rotatably installed on the moving seat, and the second motor is fixedly installed on the outside of the moving seat. The moving seat is slidingly connected to the first support seat through a guide slide rod, and the moving seat is threadedly connected to the first screw rod, and the first screw rod is rotatably installed in the first support seat. The first screw rod is fixedly connected to the output shaft of the first motor, and the first motor is fixedly installed on the outside of the first support seat.

[0021] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0022] The clamping control mechanism provided in the present invention can greatly reduce the chances of workers directly contacting dangerous mechanical parts, thereby reducing the risk of work-related injuries. Compared with manual operation, the processing cycle is greatly shortened, production efficiency is improved, and at the same time, dependence on manual operation is reduced, reducing labor intensity.

[0023] The annular cutting mechanism can make the cut of the copper tube flatter and smoother, which is beneficial to the subsequent processing and assembly. It solves the disadvantages of the existing manual cutting with low efficiency and the use of a rotating cutting knife for direct cutting, which may cause the copper tube mouth to be uneven, increase the difficulty of connection and the risk of leakage. It has strong adaptability, thereby significantly improving production efficiency.

[0024] The grinding and reaming mechanism enables the same device to handle copper tube processing tasks of various specifications and requirements. Whether it is removing burrs or reaming operations, it can be completed by replacing appropriate tools, which greatly improves the processing flexibility and adaptability of the equipment. It not only extends the service life of a single tool, but also reduces the frequency and cost of overall tool replacement.

[0025] The workstation switching mechanism can be used to switch between the annular cutting mechanism and the grinding and reaming mechanism at will. There is no need to replace the entire equipment or adjust the settings for a long time. Multiple processes such as cutting, deburring and reaming can be completed continuously on the same machine, which significantly shortens the production cycle and improves the overall processing efficiency, thereby significantly reducing the company's production costs and meeting the needs of a diversified market.

[0026] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of an embodiment of the invention.

[0028] Figure 2 It is a side structural schematic diagram of an embodiment of the invention.

[0029] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of A.

[0030] Figure 4 It is a bottom view structural schematic diagram of an embodiment of the invention.

[0031] Figure 5 It is a schematic structural diagram of the state in which the third support seat moves to the processing station in the embodiment of the invention.

[0032] Figure 6 It is a schematic diagram of the connection structure inside the moving seat in the embodiment of the invention.

[0033] Figure 7 It is a schematic diagram of the top view of the structure of the second support seat at the processing station in the embodiment of the invention.

[0034] Figure 8 It is a schematic diagram of the connection structure of the first traction plate in an embodiment of the invention.

[0035] Fig. 9 It is a bottom view structural diagram of the first slide rail connection in an embodiment of the invention.

[0036] Fig.10 It is a schematic diagram of the connection structure inside the second support base in an embodiment of the invention.

[0037] Fig.11 Schematic diagram of the connection structure of the third slide rail in the embodiment of the invention.

[0038] Fig.12 It is a schematic diagram of the exploded structure of the rotating connecting plate connection in the embodiment of the invention.

[0039] 1. Table; 2. First support seat; 3. Moving seat; 4. Guide slide rod; 5. First screw rod; 6. First motor; 7. Rotating mounting seat; 8. Teeth; 9. Driving gear; 10. Second motor; 11. Three-jaw chuck; 12. Copper tube to be processed; 13. Second support seat; 14. First fixed plate; 15. First material guide tube; 16. First collecting box; 17. Driving connecting rod; 18. First rotating shaft; 19. First cutting blade; 20. Guide wheel; 21. Wedge-shaped driving block; 22. Lifting plate; 23. Second cutting blade; 24. Guide plate; 25. Second screw rod; 26. Third motor; 27. First support plate; 28. First slide rail; 29. ​​First avoidance groove; 30. First sliding rod; 31. Driving groove; 32. First area; 33. Second area; 34. The third area; 35, the second support plate; 36, the second slide rail; 37, the first traction plate; 38, the conveyor belt; 39, the first pulley; 40, the second pulley; 41, the fourth motor; 42, the third support seat; 43, the fifth motor; 44, the rotating connecting plate; 45, the sixth motor; 46, the second rotating shaft; 47, the reamer; 48, the first fastening bolt; 49, the electric push rod; 50, the mounting frame; 51, the fixing column; 52, the second fastening bolt; 53, the mounting plate; 54, the scraper; 55, the second fixing plate; 56, the second material guide pipe; 57, the second collecting box; 58, the third support plate; 59, the third slide rail; 60, the second avoidance groove; 61, the second sliding rod; 62, the fourth support plate; 63, the fourth slide rail; 64, the second traction plate; 65, the supporting foot; 66, the limit spring. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0042] Example 1

[0043] See also Figure 1 to Figure 6 A hole enlarging processing device for air conditioning refrigeration copper tubes includes a workbench 1, a support leg 65 is provided at the bottom of the workbench 1 for supporting, a three-jaw chuck 11 for clamping and fixing a copper tube 12 to be processed is provided on the workbench 1, and the three-jaw chuck 11 is movably mounted on the workbench 1 through a first support seat 2, and also includes:

[0044] The clamping control mechanism is installed on the first support seat 2 and is used to control the rotation and linear movement of the copper tube 12 to be processed.

[0045] Furthermore, the clamping control mechanism includes a second motor 10 for controlling the rotation of the three-jaw chuck 11 and a first motor 6 for controlling the linear movement of the copper tube 12 to be processed. A rotating mounting seat 7 is fixedly installed on one side of the three-jaw chuck 11. The rotating mounting seat 7 is provided with a plurality of teeth 8 meshing with a driving gear 9. The driving gear 9 is fixedly connected to the output shaft of the second motor 10. The rotating mounting seat 7 is rotatably installed on the moving seat 3. The second motor 10 is fixedly installed on the outer side of the moving seat 3. The moving seat 3 is limitedly slidably connected to the first support seat 2 through a guide slide rod 4, and the moving seat 3 is threadedly connected to the first screw rod 5. The first screw rod 5 is rotatably installed in the first support seat 2. The first screw rod 5 is fixedly connected to the output shaft of the first motor 6. The first motor 6 is fixedly installed on the outer side of the first support seat 2.

[0046] Preferably, when the copper tube 12 to be processed is expanded, the copper tube 12 to be processed is placed and clamped on the three-jaw chuck 11 in advance, and the output shaft of the second motor 10 can drive the driving gear 9 to rotate. Under the meshing connection between the driving gear 9 and the teeth 8 on the rotating mounting seat 7, the three-jaw chuck 11 is driven to drive the copper tube 12 to be processed to rotate, thereby facilitating subsequent cutting and grinding operations. In addition, the output shaft of the first motor 6 can drive the first screw rod 5 to rotate, and under the threaded connection between the moving seat 3 and the first screw rod 5 and the limiting guiding action of the guide slide rod 4, the moving seat 3 is driven to drive the copper tube 12 to be processed to move forward or backward, thereby facilitating subsequent processing operations.

[0047] This processing operation method greatly reduces the chances of workers directly contacting dangerous mechanical parts and reduces the risk of work-related injuries. Compared with manual operation, it greatly shortens the processing cycle and improves production efficiency. At the same time, it reduces dependence on manual operation and reduces labor intensity.

[0048] It should be particularly noted that the output shafts of the second motor 10 and the first motor 6 can be driven in both forward and reverse directions.

[0049] Example 2

[0050] like Figures 1 to 12 As shown, on the basis of Example 1, this embodiment further includes an annular cutting mechanism, which is installed on the second support seat 13 and is used to perform annular cutting processing on the copper tube 12 to be processed. The annular cutting mechanism includes a driving connecting rod 17 and a lifting plate 22 for cutting processing. The driving connecting rod 17 is rotatably installed in the second support seat 13 through a first rotating shaft 18. One end of the driving connecting rod 17 is provided with a first cutting blade 19 for cutting. The lifting plate 22 is movably installed on the second support seat 13. One end of the lifting plate 22 is provided with a second cutting blade 23 for cutting, and the first cutting blade 19 and the second cutting blade 23 are arranged around and in contact with the outer layer of the copper tube 12 to be processed;

[0051] The grinding and reaming mechanism is installed on the third support seat 42, and is used for grinding and reaming the copper tube 12 to be processed after cutting. The grinding and reaming mechanism includes a scraper 54 for grinding and a reaming drill 47 for reaming. The scraper 54 and the reaming drill 47 are both movably installed on the rotating connecting plate 44, and the rotating connecting plate 44 is rotatably installed on the third support seat 42.

[0052] Furthermore, the annular cutting mechanism also includes a wedge-shaped driving block 21 and a third motor 26 for depth adjustment of cutting. The other end of the driving connecting rod 17 is rotatably connected to the guide wheel 20, and the guide wheel 20 is adapted to be slidably connected to the wedge-shaped driving block 21. The wedge-shaped driving block 21 is symmetrically fixedly connected to both sides of the lifting plate 22. The lifting plate 22 is slidably connected to the interior of the second support seat 13 through the guide plate 24. A limiting spring 66 is provided at the internal connection between the driving connecting rod 17 and the second support seat 13. The lifting plate 22 is threadedly connected to the second screw rod 25, and the second screw rod 25 is fixedly connected to the output shaft of the third motor 26. The third motor 26 is fixedly installed inside the second support seat 13.

[0053] Furthermore, the annular cutting mechanism also includes a first material guide pipe 15 and a first collecting box 16 for storing waste. The first material guide pipe 15 is fixedly installed on one side of the second support seat 13 through the first fixing plate 14. The first material guide pipe 15 is connected to the interior of the first collecting box 16. The second support seat 13 and the first collecting box 16 are both fixedly installed on the first support plate 27.

[0054] Furthermore, the grinding and reaming mechanism also includes a sixth motor 45 and an electric push rod 49 for reaming drive. The reaming drill 47 is fastened and installed on the second rotating shaft 46 by a first fastening bolt 48. The second rotating shaft 46 is fixedly connected to the output shaft of the sixth motor 45. The sixth motor 45 is fixedly connected to the piston rod of the electric push rod 49. The electric push rod 49 is fixedly installed on the outer side of the rotating connecting plate 44 through a mounting frame 50.

[0055] Furthermore, the grinding and reaming mechanism also includes a fifth motor 43 for driving the rotating connecting plate 44 to rotate, the rotating connecting plate 44 is fixedly connected to the output shaft of the fifth motor 43, the fifth motor 43 is fixedly installed inside the third support seat 42, the scraper 54 is fixedly connected to the mounting plate 53, the mounting plate 53 is fastened to the fixing column 51 by the second fastening bolt 52, and the fixing column 51 is fixedly installed on the mounting frame 50.

[0056] Furthermore, the grinding and expanding mechanism also includes a second material guide pipe 56 and a second collection box 57 for storing waste materials. The second material guide pipe 56 is fixedly installed on one side of the third support seat 42 through a second fixed plate 55. The second material guide pipe 56 is connected to the interior of the second collection box 57. The third support seat 42 and the second collection box 57 are both fixedly installed on the third support plate 58.

[0057] Preferably, in this embodiment, on the basis that the copper tube 12 to be processed has been clamped and fixed, according to the outer diameter of the copper tube 12 to be processed, the output shaft of the third motor 26 drives the second screw rod 25 to rotate, thereby driving the lifting plate 22 to move up and down under the relationship of threaded connection between the lifting plate 22 and the second screw rod 25, that is, when the diameter of the copper tube 12 to be processed is small, the lifting plate 22 moves upward, thereby driving the driving connecting rod 17 to rotate around the first rotating shaft 18 under the relationship of adaptive sliding connection between the wedge-shaped driving block 21 and the guide wheel 20, and at this time the second cutting knife The plate 23 moves upward, driving the first cutting blade 19 on the connecting rod 17 to rotate toward the direction of the copper tube 12 to be processed, so that the second cutting blade 23 and the first cutting blade 19 are around the outside of the copper tube 12 to be processed for cutting. When the diameter of the copper tube 12 to be processed is large, the lifting plate 22 moves downward. At this time, the first cutting blade 19 on the driving connecting rod 17 rotates away from the copper tube 12 to be processed under the elastic action of the limit spring 66, thereby facilitating the docking and adaptation installation of the second cutting blade 23 and the first cutting blade 19.

[0058] When the copper tube 12 to be processed is subjected to circular cutting, when the first cutting blade 19 and the second cutting blade 23 have been adapted to contact the outer side of the copper tube 12 to be processed, the third motor 26 drives the lifting plate 22 to continue to move upward. At this time, the cutting depth of the first cutting blade 19 and the second cutting blade 23 increases. At the same time, the circular cutting operation of the copper tube 12 to be processed is completed under the relationship that the second motor 10 drives the copper tube 12 to be processed to rotate, and the waste of the cut copper tube 12 to be processed can enter the first collecting box 16 through the first material guide pipe 15 for collection, without the need for manual intervention, which significantly improves work efficiency.

[0059] In addition, the incision produced by this annular cutting method is flatter and smoother, which is conducive to subsequent processing and assembly. It solves the disadvantages of the existing manual cutting method with low efficiency and the use of a rotating cutting knife for direct cutting, which may cause the copper pipe mouth to be uneven, increasing the difficulty of connection and the risk of leakage. Therefore, this technical solution has strong adaptability, thereby significantly improving production efficiency.

[0060] After completing the cutting operation of the copper tube 12 to be processed, the scraper 54 on the mounting plate 53 can clean and scrape the cut tube mouth of the copper tube 12 to be processed. When the second motor 10 drives the copper tube 12 to be processed to rotate and the first motor 6 drives the copper tube 12 to be processed to move, the generation of burrs is reduced, and the grinding operation of the tube mouth of the copper tube 12 to be processed is completed. At the same time, the scraper 54 can be detached and installed, so as to facilitate the grinding operation of copper tubes 12 to be processed of different specifications. The scrapers generated by grinding and scraping the ends of the copper tubes 12 to be processed can be collected in the second collection box 57 through the second material guide pipe 56, without the need for manual intervention, which significantly improves work efficiency.

[0061] On the basis of completing the tube mouth grinding operation of the copper tube 12 to be processed, the fifth motor 43 drives the reaming drill 47 to rotate 180 degrees accordingly. At this time, the sixth motor 45 can drive the reaming drill 47 to rotate slowly accordingly, and the electric push rod 49 drives the reaming drill 47 to extend control accordingly, thereby completing the reaming operation at the end of the copper tube 12 to be processed, and the reaming drill 47 can be detachably installed, so as to facilitate the reaming operation on the copper tubes 12 to be processed of different specifications. The design of replaceable scrapers and drill bits enables the same equipment to cope with a variety of copper tube processing tasks with different specifications and requirements. Whether it is removing burrs or reaming operations, it can be completed by replacing appropriate tools, which greatly improves the processing flexibility and adaptability of the equipment, not only prolongs the service life of a single tool, but also reduces the frequency and cost of overall tool replacement.

[0062] It should be particularly noted that the output shafts of the third motor 26 and the fifth motor 43 can be driven in both forward and reverse directions.

[0063] Example 3

[0064] like Figures 1 to 11 As shown, based on the above-mentioned embodiments, this embodiment further includes a station switching mechanism, which is installed on the workbench 1 and is used to switch the stations of the annular cutting mechanism and the grinding and reaming mechanism for processing. The station switching mechanism includes a first traction plate 37, a second traction plate 64 and a conveyor belt 38 for station switching. The first traction plate 37 is movably installed at the bottom of the second support seat 13, and the second traction plate 64 is movably installed at the bottom of the third support seat 42. The first traction plate 37 and the second traction plate 64 are both connected to the workbench 1 through the conveyor belt 38. A driving groove 31 for station switching avoidance connection is also provided on the workbench 1, and a first area 32, a second area 33 and a third area 34 are provided on the driving groove 31.

[0065] Furthermore, the workstation switching mechanism also includes a first slide rail 28, a first sliding rod 30, a second support plate 35 and a second slide rail 36 for driving the second support seat 13 to move the workstation. The second slide rail 36 is fixedly installed on the workbench 1. The second slide rail 36 is slidably connected to the second support plate 35 in an upper limit position. The second support plate 35 is fixedly connected to the first traction plate 37 and the first slide rail 28. The first slide rail 28 is slidably connected to the bottom of the first support plate 27. The first sliding rod 30 is fixedly connected to the first support plate 27. The first slide rail 28 is provided with a first avoidance groove 29 for avoiding the first sliding rod 30. The first sliding rod 30 is adapted to be slidably connected to the driving groove 31.

[0066] Furthermore, the workstation switching mechanism also includes a third slide rail 59, a second sliding rod 61, a fourth support plate 62 and a fourth slide rail 63 for driving the third support seat 42 to move the workstation. The fourth slide rail 63 is fixedly installed on the workbench 1. The fourth slide rail 63 is slidably connected to the fourth support plate 62 in an upper limit position. The fourth support plate 62 is fixedly connected to the second traction plate 64 and the third slide rail 59. The third slide rail 59 is slidably connected to the bottom of the third support plate 58. The second sliding rod 61 is fixedly connected to the third support plate 58. The third slide rail 59 is provided with a second avoidance groove 60 for avoiding the second sliding rod 61. The second sliding rod 61 is adapted to be slidably connected to the driving groove 31.

[0067] Furthermore, the workstation switching mechanism also includes a fourth motor 41 for driving the first traction plate 37 and the second traction plate 64 to perform linear movement. The first traction plate 37 and the second traction plate 64 are both fixedly connected to the conveyor belt 38. A groove for adapting to the sliding connection of the first traction plate 37 and the second traction plate 64 is opened on the workbench 1. The conveyor belt 38 is transmission-connected to the first pulley 39 and the second pulley 40. The first pulley 39 and the second pulley 40 are both rotatably installed on the workbench 1. The first pulley 39 is fixedly connected to the output shaft of the fourth motor 41, and the fourth motor 41 is fixedly installed on the workbench 1.

[0068] Preferably, in this embodiment, after the first cutting blade 19 and the second cutting blade 23 on the second support seat 13 complete the cutting operation of the copper tube 12 to be processed, when subsequent grinding and hole expansion operations are required, it is only necessary to drive the first pulley 39 to rotate counterclockwise by the fourth motor 41. Figure 8As shown, under the transmission connection relationship between the conveyor belt 38, the first pulley 39 and the second pulley 40, the first traction plate 37 drives the second support plate 35 to move away from the copper tube 12 to be processed. At this time, since the second traction plate 64 is correspondingly fixed on the conveyor belt 38, the second traction plate 64 pulls the fourth support plate 62 to move towards the direction close to the copper tube 12 to be processed. Since the first sliding rod 30 is fixedly connected to the first support plate 27 and the second sliding rod 61 is fixedly connected to the third support plate 58, and the first sliding rod 30 and the second sliding rod 61 are both adapted to be slidably connected to the driving groove 31, and the first support plate 27 and the first slide rail 28 are adapted to be slidably connected, the second support plate 3 5 and the second slide rail 36 are adapted for sliding connection, the third support plate 58 and the third slide rail 59 are adapted for sliding connection, and the fourth support plate 62 and the fourth slide rail 63 are adapted for sliding connection, so that when the first sliding rod 30 moves to the third area 34 on the driving groove 31, the structures on the second support seat 13 and the third support seat 42 complete the corresponding avoidance, and when the first sliding rod 30 moves to the second area 33 on the driving groove 31, the second sliding rod 61 correspondingly moves to the first area 32 on the driving groove 31, and the structure on the third support seat 42 can correspondingly complete the grinding and reaming of the copper tube 12 to be processed, and the switching of the two workstations does not interfere with each other, which is convenient for arbitrary switching of processing and use. Figure 1 and Figure 5 shown.

[0069] This method can quickly switch workstations without replacing the entire equipment or adjusting the settings for a long time, and can continuously complete multiple processes such as cutting, deburring and reaming on the same machine, significantly shortening the production cycle and improving the overall processing efficiency, thereby significantly reducing the company's production costs and meeting the needs of a diversified market.

[0070] It should be noted that the output shaft of the fourth motor 41 can be driven in forward and reverse directions.

[0071] It should be particularly noted that the components in this application are all universal standard parts or components well known to those skilled in the art, which effectively solve the technical problems raised in the background technology.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hole expansion processing device for air conditioning refrigeration copper tubes, comprising a workbench (1), the bottom of the workbench (1) is provided with supporting feet (65) for supporting, characterized in that: The workbench (1) is provided with a three-jaw chuck (11) for clamping and fixing the copper tube (12) to be processed, and the three-jaw chuck (11) is movably mounted on the workbench (1) via a first support seat (2), and further comprises: A clamping control mechanism, which is mounted on the first support seat (2) and is used to control the rotation and linear movement of the copper tube (12) to be processed; An annular cutting mechanism, which is mounted on a second support seat (13) and is used for performing annular cutting processing on a copper tube (12) to be processed, the annular cutting mechanism comprising a driving connecting rod (17) and a lifting plate (22) for cutting processing, the driving connecting rod (17) being rotatably mounted in the second support seat (13) via a first rotating shaft (18), one end of the driving connecting rod (17) being provided with a first cutting blade (19) for cutting, the lifting plate (22) being movably mounted on the second support seat (13), one end of the lifting plate (22) being provided with a second cutting blade (23) for cutting, and the first cutting blade (19) and the second cutting blade (23) being arranged around and in contact with the outer layer of the copper tube (12) to be processed; a grinding and reaming mechanism, which is mounted on the third support seat (42) and is used for grinding and reaming the cut copper tube (12) to be processed, the grinding and reaming mechanism comprising a scraper (54) for grinding and a reaming drill (47) for reaming, the scraper (54) and the reaming drill (47) being movably mounted on a rotating connecting plate (44), and the rotating connecting plate (44) being rotatably mounted on the third support seat (42); A workstation switching mechanism is mounted on a workbench (1) and is used to switch the workstations of an annular cutting mechanism and a grinding and reaming mechanism for processing. The workstation switching mechanism comprises a first traction plate (37), a second traction plate (64) and a conveyor belt (38) for workstation switching. The first traction plate (37) is movably mounted on the bottom of a second support seat (13), and the second traction plate (64) is movably mounted on the bottom of a third support seat (42). The first traction plate (37) and the second traction plate (64) are both connected to the workstation (1) by means of a conveyor belt (38). The workstation (1) is also provided with a driving groove (31) for avoiding position connection during workstation switching. The driving groove (31) is provided with a first area (32), a second area (33) and a third area (34).

2. The hole expansion processing device for air conditioning refrigeration copper tube according to claim 1 is characterized in that: The annular cutting mechanism further comprises a wedge-shaped driving block (21) and a third motor (26) for adjusting the cutting depth. The other end of the driving connecting rod (17) is rotatably connected to a guide wheel (20). The guide wheel (20) is adapted to be slidably connected to the wedge-shaped driving block (21). The wedge-shaped driving block (21) is symmetrically fixedly connected to two sides of a lifting plate (22). The lifting plate (22) is limitedly slidably connected to the inside of the second support seat (13) through a guide plate (24). A limit spring (66) is provided at the internal connection between the driving connecting rod (17) and the second support seat (13). The lifting plate (22) is threadedly connected to the second screw rod (25). The second screw rod (25) is fixedly connected to the output shaft of the third motor (26). The third motor (26) is fixedly installed inside the second support seat (13).

3. The hole expansion processing device for air conditioning refrigeration copper tube according to claim 2 is characterized in that: The annular cutting mechanism further comprises a first material guide pipe (15) and a first collection box (16) for collecting waste materials. The first material guide pipe (15) is fixedly mounted on one side of the second support seat (13) via a first fixing plate (14). The first material guide pipe (15) is connected to the interior of the first collection box (16). The second support seat (13) and the first collection box (16) are both fixedly mounted on the first support plate (27).

4. The hole expansion processing device for air conditioning refrigeration copper tube according to claim 1, characterized in that: The grinding and reaming mechanism also includes a sixth motor (45) and an electric push rod (49) for driving the reaming. The reaming drill (47) is fastened and mounted on the second rotating shaft (46) via a first fastening bolt (48). The second rotating shaft (46) is fixedly connected to the output shaft of the sixth motor (45). The sixth motor (45) is fixedly connected to the piston rod of the electric push rod (49). The electric push rod (49) is fixedly mounted on the outer side of the rotating connecting plate (44) via a mounting frame (50).

5. The hole expansion processing device for air conditioning refrigeration copper tube according to claim 4, characterized in that: The grinding and reaming mechanism further comprises a fifth motor (43) for driving the rotating connecting plate (44) to rotate, the rotating connecting plate (44) being fixedly connected to the output shaft of the fifth motor (43), the fifth motor (43) being fixedly mounted inside the third supporting seat (42), the scraper (54) being fixedly connected to the mounting plate (53), the mounting plate (53) being fastened to the fixing column (51) by a second fastening bolt (52), and the fixing column (51) being fixedly mounted on the mounting frame (50).

6. The hole expansion processing device for air conditioning refrigeration copper tube according to claim 5, characterized in that: The grinding and reaming mechanism further comprises a second material guide pipe (56) and a second collection box (57) for collecting waste materials. The second material guide pipe (56) is fixedly mounted on one side of the third support seat (42) via a second fixing plate (55). The second material guide pipe (56) is connected to the interior of the second collection box (57). The third support seat (42) and the second collection box (57) are both fixedly mounted on the third support plate (58).

7. The hole expansion processing device for air conditioning refrigeration copper tube according to claim 1, characterized in that: The workstation switching mechanism further comprises a first slide rail (28), a first sliding rod (30), a second support plate (35) and a second slide rail (36) for driving the second support seat (13) to move the workstation; the second slide rail (36) is fixedly mounted on the workbench (1); the second slide rail (36) is slidably connected to the second support plate (35) in an upper limit position; the second support plate (35) is fixedly connected to the first traction plate (37) and the first slide rail (28); the first slide rail (28) is slidably connected to the bottom of the first support plate (27); the first sliding rod (30) is fixedly connected to the first support plate (27); a first avoidance groove (29) for avoiding the first sliding rod (30) is provided on the first slide rail (28); and the first sliding rod (30) is slidably connected to the driving groove (31).

8. The hole expanding processing device for air conditioning refrigeration copper tube according to claim 7, characterized in that: The workstation switching mechanism further comprises a third slide rail (59), a second sliding rod (61), a fourth support plate (62) and a fourth slide rail (63) for driving the third support seat (42) to move the workstation; the fourth slide rail (63) is fixedly mounted on the workbench (1); the fourth slide rail (63) is slidably connected to the fourth support plate (62) in an upper limit position; the fourth support plate (62) is fixedly connected to the second traction plate (64) and the third slide rail (59); the third slide rail (59) is slidably connected to the bottom of the third support plate (58); the second sliding rod (61) is fixedly connected to the third support plate (58); a second avoidance groove (60) for avoiding the second sliding rod (61) is provided on the third slide rail (59); the second sliding rod (61) is adaptively slidably connected to the driving groove (31).

9. The hole expansion processing device for air conditioning refrigeration copper tube according to claim 8, characterized in that: The workstation switching mechanism further comprises a fourth motor (41) for driving the first traction plate (37) and the second traction plate (64) to move linearly, the first traction plate (37) and the second traction plate (64) are both fixedly connected to the conveyor belt (38), the workbench (1) is provided with a groove for adapting the sliding connection between the first traction plate (37) and the second traction plate (64), the conveyor belt (38) is transmission-connected to the first pulley (39) and the second pulley (40), the first pulley (39) and the second pulley (40) are both rotatably mounted on the workbench (1), the first pulley (39) is fixedly connected to the output shaft of the fourth motor (41), and the fourth motor (41) is fixedly mounted on the workbench (1).

10. The hole expanding processing device for air conditioning refrigeration copper tube according to claim 1, characterized in that: The clamping control mechanism comprises a second motor (10) for controlling the rotation of a three-jaw chuck (11) and a first motor (6) for controlling the linear movement of a copper tube (12) to be processed. A rotating mounting seat (7) is fixedly mounted on one side of the three-jaw chuck (11). The rotating mounting seat (7) is provided with a plurality of teeth (8) meshingly connected with a driving gear (9). The driving gear (9) is fixedly connected to the output shaft of the second motor (10). The rotating mounting seat (7) is rotatably mounted on a moving seat (3). The second motor (10) is fixedly mounted on the outer side of the moving seat (3). The moving seat (3) is limitedly slidably connected to the first support seat (2) through a guide slide bar (4). The moving seat (3) is threadedly connected to a first screw rod (5). The first screw rod (5) is rotatably mounted in the first support seat (2). The first screw rod (5) is fixedly connected to the output shaft of the first motor (6). The first motor (6) is fixedly mounted on the outer side of the first support seat (2).

Images