Three-servo rolling forming equipment, forming method and application of three-servo rolling forming equipment in heat exchange copper pipe

Abstract

The invention belongs to the technical field of heat exchange copper pipe fin cutting forming, and discloses three-servo rolling forming equipment, a forming method and application of the three-servo rolling forming equipment in a heat exchange copper pipe. The three-servo rolling forming equipment comprises a power assembly, a fixed plate is connected to the power assembly, a movable assembly is connected to the interior of the fixed plate, and the movable assembly is connected to the interior of the fixed plate; the movable assembly is connected with a nut seat, the nut seat is connected with the power assembly, the arranged steering assembly is matched with the cutting assembly, it is ensured that the angle of the cutting assembly is matched with the angle between the heat exchange copper pipes, and in the process that fins on the heat exchange copper pipes are cut and formed by the cutting assembly, the cutting assembly can cut the fins on the heat exchange copper pipes. The moving speed of the heat exchange copper pipe is matched with the cutting speed of the cutting assemblies, stable forming of the fins can be guaranteed, the heat exchange copper pipe is cut in a layered mode through the cutting pieces with different diameters, and the situation of cutter clamping is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of heat exchange copper tube fin cutting and forming, and specifically relates to three-servo rolling forming equipment, a forming method and application thereof in heat exchange copper tubes. Background Art

[0002] In the use of heat exchange copper tubes, in order to ensure the stability of the heat exchange efficiency of the heat exchange copper tubes, heat dissipation fins are usually installed or added to the surface of the heat exchange copper tubes. However, in the process of molding the heat exchange fins, including injection molding, cutting and other forms, the molded heat exchange copper tubes are generally used to heat or cool the air. They have the characteristics of compact structure and large unit heat exchange area. They are widely used in various fields such as textiles, printing and dyeing, petroleum, chemical industry, drying, and electricity.

[0003] The patent with application number CN202021957656.X discloses a cutting device for the production of heat exchanger copper tubes, including a workbench, support legs are welded at the four corners of the bottom of the workbench, and a fixed frame is fixed to the outer wall on one side of the top of the workbench by bolts, an electric telescopic rod is fixed to the top of the fixed frame, and the piston rod of the electric telescopic rod is connected to the cutting machine, a chip groove is opened in the middle position of the top of the workbench, and a metal grid is welded on the inner wall of the top of the chip groove, sliding grooves are provided on the inner walls on both sides of the chip groove, and a bidirectional threaded rod with bearings at both ends is fixed to the inner wall of the sliding groove. The above scheme, through the mutual cooperation of the servo motor, the bidirectional threaded rod and the arc-shaped clamping rod, allows the user to adjust the spacing between the two sliding blocks by only controlling the rotation direction of the servo motor, thereby controlling the distance between the two arc-shaped clamping rods to clamp and fix the heat exchanger copper tube, and the anti-slip pad on the inner wall of the arc-shaped clamping rod can prevent the copper tube from sliding during the clamping process. However, in the above scheme, only the fixing form of the heat exchange copper tube is described, and the processing process of the heat exchange copper tube fin is not described.

[0004] During the heating process of the heat exchange copper tube fins, due to the large angle and depth of the fins, the fin forming cannot be effectively achieved only by a single fin forming and cutting device. In addition, during the cutting and forming process, the debris is easy to adhere to the cutting device, affecting the cutting accuracy, and ultimately affecting the service life of the cutting device and the forming accuracy of the fins.

[0005] Therefore, in order to solve the above technical problems, a three-servo rolling forming device, a forming method and an application thereof in a heat exchange copper tube are proposed. Summary of the invention

[0006] The purpose of the present invention is to solve the above problems. The present invention provides a three-servo rolling forming device, a forming method and its application in heat exchange copper tubes, which has the advantages of improving the forming of heat exchange copper tube fins and the service life of the forming equipment.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a three-servo rolling forming device, comprising a power assembly, a fixed plate is connected to the power assembly, a movable assembly is connected inside the fixed plate, a nut seat is connected to the movable assembly, the nut seat is connected to the power assembly, a dovetail assembly is connected to one end of the movable assembly away from the power assembly, a knife seat assembly is connected to the dovetail assembly, and a transmission assembly is connected to one end of the knife seat assembly; The end of the knife base assembly away from the transmission assembly is connected with a steering assembly, and the end of the steering assembly away from the knife base assembly is connected with a cutting assembly; The cutting assembly includes a connecting shell, on which a plurality of cutting blades are connected, and the plurality of cutting blades are arranged in an array along the axial direction of the connecting shell, and the diameters of the plurality of cutting blades decrease sequentially starting from an end close to the steering assembly.

[0008] Preferably, a cleaning component is connected to the cutting blade, the cleaning component and the connecting shell are in conflict with each other, the cleaning component includes an air duct, and an air outlet is connected to the outer circumference of the air duct.

[0009] Preferably, a movable knife is movably provided on the cutting disc, the diameter of the movable knife is larger than the diameter of the cutting disc, and a buffer spring is connected between the movable knife and the cutting disc.

[0010] Preferably, a cooling cavity is provided in the connecting shell, and cooling grooves are provided in the plurality of cutting blades, and the cooling grooves are communicated with the cooling cavity.

[0011] Preferably, the power assembly comprises a first servo motor, a power end of the first servo motor is connected with a reducer, an end of the reducer away from the first servo motor is connected with a motor seat, and the nut seat is threadedly connected to the motor seat.

[0012] Preferably, the movable component includes a slide rail, the slide rail is connected to the fixed plate, a slider is slidably provided on the slide rail, a connecting plate is connected to the slider, the connecting plate is connected to the nut seat, and the connecting plate is connected to the dovetail combination.

[0013] Preferably, the transmission assembly comprises a second servo motor, a power end of the second servo motor is connected to a chain assembly, and the chain assembly is connected to the tool holder assembly.

[0014] Preferably, the steering assembly includes a rotating rod, one end of the rotating rod is connected to the cutting assembly, the end of the rotating rod away from the cutting assembly is rotatably provided with a restraining shell, the end of the restraining shell away from the rotating rod is rotatably provided with a bearing shell, and a flip part is connected between the restraining shell and the bearing shell, and the end of the knife seat assembly away from the chain assembly is rotatably connected to the bearing shell.

[0015] The present invention also includes a molding method, comprising the following steps: S1, regulating the positions of the movable component and the knife seat component through the power component, and controlling the transmission component to adjust the angle of the cutting component; S2. Using the steering assembly to control the inclination angle of the cutting assembly so that the cutting blade on the cutting assembly can contact the heat exchange copper tube; S3, control the cutting blade to rotate, so that the movable knife contacts and cuts the heat exchange copper tube. As the contact pressure between the movable knife and the heat exchange copper tube increases, the buffer spring undergoes elastic changes to maintain the cutting efficiency of the movable knife; S4. As the cutting depth of the movable knife increases, the cutting blade contacts the heat exchange copper tube and cuts it; S5. During the cutting process of the cutting blade, relative displacement occurs between the heat exchange copper tube and the cutting blade, so that the cutting blade cuts and shapes the fins on the heat exchange copper tube in turn. During the cutting process, the surface of the cutting blade is cleaned by a cleaning component, and the heat dissipation rate between the cooling cavity and the cooling groove is regulated according to the temperature of the cutting blade.

[0016] An application of the three-servo rolling forming equipment in a heat exchange copper tube.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. By cooperating with the steering assembly and the cutting assembly, it is ensured that the angle of the cutting assembly matches the angle of the heat exchange copper tube, and in the process of the cutting assembly cutting and forming the fins on the heat exchange copper tube, the movement of the heat exchange copper tube matches the cutting rate of the cutting assembly, which can ensure the stable forming of the fins, and use cutting blades set to different diameters to achieve layered cutting of the heat exchange copper tube to avoid the situation of knife jamming.

[0018] 2. The tool holder assembly is independently controlled by a servo motor and driven by a silent chain. It has stable transmission, low vibration, low noise, and stable and synchronous tool shaft speed, which effectively increases the service life of the tool. It is also convenient for later maintenance and has lower costs, ensuring long-term stability of the switching rolling angle.

[0019] 3. Through the cooperation between the cleaning component and the cooling groove, on the one hand, the cleaning component can be used to clean the debris on the surface of the cutting blade to improve the stability of the cutting blade during the cutting process. On the other hand, the cooling groove is used to cool the temperature of the cutting blade to ensure that the hardness of the cutting blade is not affected by the high temperature and the degree of wear is accelerated. At the same time, the cooling groove and the cleaning component can effectively reduce the situation where the debris melts and adheres to the surface of the cutting blade, thereby improving the service life of the cutting blade and the accuracy of fin forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall device of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the cutting assembly of the present invention; Figure 3 It is a schematic cross-sectional structure diagram of the cutting assembly of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the steering assembly of the present invention; Figure 5 It is a schematic diagram of the connection structure between the cutting blade and the cleaning assembly of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the cooling tank of the present invention; Figure 7 It is a schematic diagram of the connection structure of the movable knife of the present invention; Figure 8 It is a schematic diagram of the connection structure of the buffer spring of the present invention.

[0021] Description of the drawings: 1. Power assembly; 101. First servo motor; 102. Reducer; 103. Motor seat; 2. Fixed plate; 3. Movable assembly; 301. Slide rail; 302. Slider; 303. Connecting plate; 4. Nut seat; 5. Transmission assembly; 501. Second servo motor; 502. Chain assembly; 6. Knife seat assembly; 7. Dovetail assembly; 8. Steering assembly; 801. Rotating rod; 802. Constraint shell; 803. Bearing shell; 804. Flipping part; 9. Cutting assembly; 901. Connecting shell; 9011. Cooling chamber; 902. Cutting blade; 9021. Cooling trough; 903. Cleaning assembly; 9031. Air duct; 9032. Air outlet; 904. Movable knife; 9041. Buffer spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0023] like Figure 1-Figure 8 As shown, a three-servo rolling forming equipment includes a power component 1 for power drive, a fixed plate 2 is connected to the power component 1, a movable component 3 is connected inside the fixed plate 2, a nut seat 4 is connected to the movable component 3, and the nut seat 4 is connected to the power component 1. When the power component 1 is working, it can drive the nut seat 4 to move, thereby realizing the movement of the movable component 3, thereby driving the transmission component 5 and the tool holder assembly 6 to move. The end of the movable component 3 away from the power component 1 is connected with a dovetail combination 7 for adjusting the height of the tool holder assembly 6, the dovetail combination 7 is connected to the tool holder assembly 6, and one end of the tool holder assembly 6 is connected with a transmission component 5. The transmission component 5 is used to drive the angle of the tool holder assembly 6 to be adjusted, thereby ensuring that the tool holder assembly 6 can quickly adjust the angle according to the cutting situation during use, thereby ensuring the forming rate of the heat exchange copper tube.

[0024] In order to ensure that the heat exchange copper tube will not fail in the process of forming due to the problem of tool cutting angle, the end of the tool holder assembly 6 away from the transmission assembly 5 is connected with a steering assembly 8, and the steering assembly 8 is used to adjust the angle of the cutting assembly 9. The end of the steering assembly 8 away from the tool holder assembly 6 is connected with a cutting assembly 9, and the fins of the heat exchange copper tube are cut and processed by the cutting assembly 9.

[0025] In order to ensure that the cutting component 9 can cut the heat exchange copper tube normally, the cutting component 9 includes a connecting shell 901 for carrying the tool. A plurality of cutting blades 902 are connected to the connecting shell 901. The plurality of cutting blades 902 are used to cut and form the fins of the heat exchange copper tube, and the plurality of cutting blades 902 are arranged in an array along the axial direction of the connecting shell 901. At the same time, the diameters of the plurality of cutting blades 902 decrease successively with one end close to the steering component 8 as the starting point, that is, the diameter of the cutting blade 902 close to the steering component 8 is the largest. When the cutting blade 902 is distributed sequentially toward the side away from the steering component 8, the diameter of the cutting blade 902 decreases successively. Therefore, in the process of cutting the heat exchange copper tube, according to the diameter of the cutting blade 902, the depth of the fin forming process is slowly increased, which ensures the working efficiency of the cutting component 9 and improves the working life of the cutting component 9.

[0026] During the process of the cutting blade 902 cutting the fins of the heat exchange copper tube, the debris after cutting will remain on the cutting blade 902, thereby interfering with the cutting accuracy of the cutting blade 902. Furthermore, a cleaning component 903 is connected to the cutting blade 902, and the cleaning component 903 and the connecting shell 901 conflict with each other, that is, the cleaning component 903 is located on the inner ring of the cutting blade 902, and the cleaning components 903 are distributed on both sides of the cutting blade 902, so as to realize all-round cleaning of the cutting blade 902. At the same time, the cleaning component 903 includes an air duct 9031, and an air outlet 9032 is connected to the outer circumference of the air duct 9031. By utilizing the mutual cooperation between the air duct 9031 and the air outlet 9032, the air in the air duct 9031 can be transferred to the cutting blade 902 by utilizing the air outlet 9032, so as to realize the cleaning of the debris on the cutting blade 902, and ensure that the blade on the cutting blade 902 is clean and will not interfere with the forming of the fins on the heat exchange copper tube.

[0027] In order to ensure that the cutting blade 902 cuts the fin stably, further, a movable knife 904 for auxiliary cutting of the heat exchange copper tube is movably provided on the cutting blade 902, and the diameter of the movable knife 904 is larger than the diameter of the cutting blade 902, so as to ensure that the movable knife 904 first contacts the heat exchange copper tube, and as the movable knife 904 contacts and rotates, the cutting stress of the cutting blade 902 when cutting the heat exchange copper tube is reduced, so as to ensure the stable service life of the cutting blade 902, and a buffer spring 9041 is connected between the movable knife 904 and the cutting blade 902, When the movable knife 904 contacts the heat exchange copper tube, as the contact depth increases, the movable knife 904 can slide relative to the cutting blade 902, wherein the buffer spring 9041 on the side where the movable knife 904 contacts the heat exchange copper tube is in a contracted state, and the buffer spring 9041 on the side away from the contact is in an extended state. It should be noted that only relative movement in the vertical direction can occur between the movable knife 904 and the cutting blade 902, that is, no relative rotation will occur between the movable knife 904 and the cutting blade 902, thereby ensuring that the movable knife 904 and the cutting blade 902 can accurately cut the heat exchange copper tube.

[0028] It should be noted that the movable knife 904 is in a ring-shaped structure in this solution.

[0029] In order to prevent the cutting blade 902 from having its body temperature rise too quickly during continuous operation and affecting its service life, a cooling chamber 9011 is further provided in the connecting shell 901, and a coolant is stored in the cooling chamber 9011. A plurality of cutting blades 902 are provided with cooling grooves 9021, and the cooling grooves 9021 are interconnected with the cooling chamber 9011. During the cutting process of the cutting blade 902, the coolant in the cooling chamber 9011 is regulated according to the cutting temperature of the cutting blade 902, so that the coolant in the cooling chamber 9011 is circulated and cooled through the cooling grooves 9021, thereby ensuring the cutting strength of the cutting blade 902.

[0030] Furthermore, the power component 1 includes a first servo motor 101, a power end of the first servo motor 101 is connected to a reducer 102, an end of the reducer 102 away from the first servo motor 101 is connected to a motor seat 103, and the nut seat 4 and the motor seat 103 are threadedly connected. The first servo motor 101 drives the reducer 102 to work, thereby driving the motor seat 103 to rotate, realizing the movement of the nut seat 4, and then driving the movable component 3 to move.

[0031] Furthermore, the movable component 3 includes a slide rail 301, which is connected to the fixed plate 2. A slider 302 is slidably provided on the slide rail 301, and a connecting plate 303 is connected to the slider 302. The connecting plate 303 is connected to the nut seat 4, and the connecting plate 303 is connected to the dovetail combination 7. During the movement of the nut seat 4, the slider 302 is driven to move along the slide rail 301, thereby driving the connecting plate 303 to move, thereby realizing the position movement of the transmission component 5 and the tool holder component 6, and the dovetail combination 7 is used to realize the height control of the tool holder component 6. It should be noted that the dovetail combination 7 is a prior art and will not be elaborated here.

[0032] Furthermore, the transmission assembly 5 includes a second servo motor 501, and the power end of the second servo motor 501 is connected to a chain assembly 502. In the present embodiment, the chain assembly 502 is connected by a silent chain, and the chain assembly 502 is connected to the tool holder assembly 6. The chain assembly 502 is driven to rotate by the second servo motor 501, thereby driving the tool holder assembly 6 to adjust its angle.

[0033] Furthermore, the steering assembly 8 includes a rotating rod 801, one end of the rotating rod 801 is connected to the cutting assembly 9, the end of the rotating rod 801 away from the cutting assembly 9 is rotatably provided with a constraint shell 802, the end of the constraint shell 802 away from the rotating rod 801 is rotatably provided with a bearing shell 803, and a flipping portion 804 is connected between the constraint shell 802 and the bearing shell 803, and the end of the tool holder assembly 6 away from the chain assembly 502 is rotatably connected to the bearing shell 803, wherein the steering assembly 8 is used to realize the position control of various angles of the cutting assembly 9, and then according to the cutting situation of the cutting assembly 9, the angle control of the cutting assembly 9 is realized by controlling the working state of the steering assembly 8.

[0034] During operation, the forming device is fixed on the apparatus, and the heat exchange copper tube to be formed is placed in the area to be processed, waiting for the cutting assembly 9 to cut the fins of the heat exchange copper tube.

[0035] According to the position of the heat exchange copper tube, the first servo motor 101 is controlled to work, thereby driving the reducer 102 and the motor seat 103 to work, so as to realize the position movement of the nut seat 4, thereby driving the tool holder assembly 6 to move, and the second servo motor 501 is rotated to drive the chain assembly 502 to work, so as to realize the angle adjustment of the tool holder assembly 6, and ensure that the cutting assembly 9 can directly contact the heat exchange copper tube under the action of the steering assembly 8.

[0036] When the steering assembly 8 and the cutting assembly 9 reach the target area, the steering assembly 8 drives the cutting assembly 9 to rotate, so as to adjust the angle of the cutting assembly 9, so that the cutting blade 902 away from the end of the steering assembly 8 collides with the heat exchange copper tube, and at this time, the inclination angle of the connecting shell 901 can meet the cutting requirements of the cutting blade 902, and maintain the inclination angle of the connecting shell 901 unchanged during the processing.

[0037] The cutting disc 902 is controlled to rotate, and the movable knife 904 is driven to rotate along with the cutting disc 902, and the movable knife 904 is prompted to first contact with the tube wall of the heat exchange copper tube, and the heat exchange copper tube is initially cut by the rotation of the movable knife 904, so that the movable knife 904 is prompted to first perform shallow cutting on the tube wall to achieve the destruction of the surface stress of the heat exchange copper tube, and then as the movable knife 904 cuts deeper, the cutting disc 902 is caused to contact with the heat exchange copper tube, and the cutting disc 902 is used to perform secondary shaping on the groove generated by the movable knife 904, that is, in this process, the stress on the surface of the heat exchange copper tube is first eliminated by the movable knife 904, and then the cutting disc 902 is used to perform secondary cutting on the heat exchange copper tube, thereby meeting the cutting requirements of this stage while also improving the service life of the cutting disc 902.

[0038] During the cutting process of the cutting blade 902, the cleaning component 903 always blows on the surface of the cutting blade 902 to reduce the probability of debris adhering to the cutting blade 902 during the cutting process, ensure the flatness of the surface of the cutting blade 902, and improve the quality of the forming of the heat exchange copper tube fins.

[0039] At the same time, due to the different diameters of the cutting blade 902, during the cutting process between the movable knife 904 and the cutting blade 902, the heat exchange copper tube moves along with the cutting of the cutting blade 902, and the moving direction moves toward the side close to the steering assembly 8. At the same time, the cutting speed of the cutting blade 902 matches the moving speed of the heat exchange copper tube, which can ensure that the fins of the heat exchange copper tube are stably formed. As the heat exchange copper tube moves, it contacts with the cutting blades 902 of different diameters, thereby cutting and forming the depth of the fins of the heat exchange copper tube in the contact area in turn, thereby reducing the working pressure of the cutting blade 902 during the fin forming process and improving the forming quality.

[0040] When the movable knife 904 comes into contact with the heat exchange copper tube, the buffer spring 9041 on one side will be compressed and the buffer spring 9041 on the other side will be extended, thereby increasing the contact pressure between the movable knife 904 and the heat exchange copper tube and improving the cutting efficiency of the movable knife 904. The movable knife 904 is used to cut the surface of the heat exchange copper tube first, which can ensure that the cutting blade 902 will not slip when processing on the heat exchange copper tube, thereby improving the forming efficiency of the heat exchange copper tube.

[0041] As the fins of the heat exchange copper tube are being processed and formed, the temperature of the cutting blade 902 body increases as the cutting blade 902 continues to work, which will cause the coolant in the cooling chamber 9011 to enter the cooling groove 9021 and circulate in the cooling groove 9021, thereby removing the heat from the cutting blade 902, ensuring the stability of the working temperature of the cutting blade 902, and increasing the service life of the cutting blade 902. At the same time, it can also reduce the probability of debris from the heat exchange copper tube adhering to and sticking to the cutting blade 902 during the cutting process. Embodiment 2

[0042] The present invention also includes a forming method implemented by using a three-servo rolling forming device, comprising the following steps: S1, regulating the positions of the movable component 3 and the knife seat component 6 through the power component 1, and controlling the transmission component 5 to adjust the angle of the cutting component 9; S2. Use the steering assembly 8 to control the inclination angle of the cutting assembly 9 so that the cutting blade 902 on the cutting assembly 9 can contact the heat exchange copper tube; S3, controlling the cutting blade 902 to rotate, causing the movable knife 904 to contact and cut the heat exchange copper tube. As the contact pressure between the movable knife 904 and the heat exchange copper tube increases, the buffer spring 9041 undergoes elastic changes to maintain the cutting efficiency of the movable knife 904. S4, as the cutting depth of the movable knife 904 increases, the cutting blade 902 contacts the heat exchange copper tube and starts cutting; S5. During the cutting process of the cutting blade 902, relative displacement occurs between the heat exchange copper tube and the cutting blade 902, so that the cutting blade 902 cuts and shapes the fins on the heat exchange copper tube in turn. Meanwhile, during the cutting process, the surface of the cutting blade 902 is cleaned by the cleaning component 903, and the heat dissipation rate between the cooling cavity 9011 and the cooling groove 9021 is regulated according to the temperature of the cutting blade 902.

[0043] One of the applications is completed in the heat exchange copper tube using three-servo rolling forming equipment. During use, the position angle of the knife seat assembly 6 and the cutting assembly 9 are adjusted by controlling the three servo motors, thereby ensuring the accuracy and forming efficiency during the processing of the heat exchange copper tube.

[0044] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

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

Claims

1. A three-servo rolling forming device, comprising a power assembly (1), characterized in that: The power assembly (1) is connected to a fixed plate (2), a movable assembly (3) is connected inside the fixed plate (2), a nut seat (4) is connected to the movable assembly (3), the nut seat (4) is connected to the power assembly (1), a dovetail assembly (7) is connected to one end of the movable assembly (3) away from the power assembly (1), a knife seat assembly (6) is connected to the dovetail assembly (7), and a transmission assembly (5) is connected to one end of the knife seat assembly (6); One end of the knife seat assembly (6) away from the transmission assembly (5) is connected to a steering assembly (8), and one end of the steering assembly (8) away from the knife seat assembly (6) is connected to a cutting assembly (9); The cutting assembly (9) comprises a connecting shell (901), and a plurality of cutting blades (902) are connected to the connecting shell (901), and the plurality of cutting blades (902) are arranged in an array along the axial direction of the connecting shell (901), and the diameters of the plurality of cutting blades (902) decrease in sequence starting from an end close to the steering assembly (8).

2. The three-servo rolling forming equipment according to claim 1 is characterized in that: The cutting blade (902) is connected to a cleaning component (903), the cleaning component (903) and the connecting shell (901) are in contact with each other, the cleaning component (903) comprises an air duct (9031), and an air outlet (9032) is connected to the outer circumference of the air duct (9031).

3. The three-servo rolling forming equipment according to claim 2 is characterized in that: A movable knife (904) is movably provided on the cutting blade (902); the diameter of the movable knife (904) is greater than the diameter of the cutting blade (902); and a buffer spring (9041) is connected between the movable knife (904) and the cutting blade (902).

4. The three-servo roll forming equipment according to claim 1, characterized in that: A cooling cavity (9011) is provided in the connection shell (901), and cooling grooves (9021) are provided in the plurality of cutting blades (902), wherein the cooling grooves (9021) are in communication with the cooling cavity (9011).

5. The three-servo roll forming equipment according to claim 1, characterized in that: The power assembly (1) comprises a first servo motor (101), a power end of the first servo motor (101) being connected to a reducer (102), an end of the reducer (102) away from the first servo motor (101) being connected to a motor seat (103), and the nut seat (4) and the motor seat (103) being threadedly connected.

6. The three-servo roll forming equipment according to claim 5, characterized in that: The movable component (3) comprises a slide rail (301), the slide rail (301) is connected to the fixed plate (2), a slider (302) is slidably provided on the slide rail (301), a connecting plate (303) is connected to the slider (302), the connecting plate (303) is connected to the nut seat (4), and the connecting plate (303) is connected to the dovetail assembly (7).

7. The three-servo roll forming equipment according to claim 1, characterized in that: The transmission assembly (5) comprises a second servo motor (501), a power end of the second servo motor (501) being connected to a chain assembly (502), and the chain assembly (502) being connected to the knife seat assembly (6).

8. The three-servo roll forming equipment according to claim 7, characterized in that: The steering assembly (8) comprises a rotating rod (801), one end of the rotating rod (801) is connected to the cutting assembly (9), one end of the rotating rod (801) away from the cutting assembly (9) is rotatably provided with a restraining shell (802), one end of the restraining shell (802) away from the rotating rod (801) is rotatably provided with a bearing shell (803), and a flipping portion (804) is connected between the restraining shell (802) and the bearing shell (803), and one end of the knife seat assembly (6) away from the chain assembly (502) is rotatably connected to the bearing shell (803).

9. A forming method, using the three-servo rolling forming device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, regulating the positions of the movable component (3) and the knife seat component (6) through the power component (1), and controlling the transmission component (5) to adjust the angle of the cutting component (9); S2. Using the steering assembly (8) to control the inclination angle of the cutting assembly (9) so that the cutting blade (902) on the cutting assembly (9) can contact the heat exchange copper tube; S3, controlling the cutting blade (902) to rotate, causing the movable knife (904) to contact and cut the heat exchange copper tube, and as the contact pressure between the movable knife (904) and the heat exchange copper tube increases, the buffer spring (9041) undergoes elastic changes to maintain the cutting efficiency of the movable knife (904); S4, as the cutting depth of the movable knife (904) increases, the cutting blade (902) contacts the heat exchange copper tube and starts cutting; S5. During the cutting process of the cutting blade (902), relative displacement is caused between the heat exchange copper tube and the cutting blade (902), so that the cutting blade (902) cuts and shapes the fins on the heat exchange copper tube in sequence. During the cutting process, the surface of the cutting blade (902) is cleaned by using the cleaning component (903), and the heat dissipation rate between the cooling cavity (9011) and the cooling groove (9021) is regulated according to the temperature of the cutting blade (902).

10. An application of the three-servo roll forming equipment as described in any one of claims 1 to 8 in heat exchange copper tubes.

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