Efficient cutting equipment for heat exchanger copper pipe production

Abstract

The invention discloses efficient cutting equipment for heat exchanger copper pipe production, relates to the field of copper pipe cutting equipment, solves the problem that burrs at the edge of a pipe section are difficult to synchronously and efficiently remove in the cutting process when existing heat exchanger copper pipe cutting equipment is used, and comprises a machine body, a cutting mechanism and a dust collection mechanism. The cutting mechanism comprises a fixed ring, a rotating ring, cutting knives and a grinding piece, the cutting mechanism drives the rotating ring to rotate at a high speed, the tips of the multiple sets of cutting knives are controlled to synchronously move towards one side of the axis of the rotating ring, and clamping and cutting operation on the outer wall of the copper pipe is completed through rotation of the cutting knives; and after cutting is completed, the two ends of the grinding piece are linked to move on one side of the copper pipe, so that the grinding piece abuts against the end of the copper pipe, the grinding piece is bent, the outer edge and the inner edge of the cutting end face of the copper pipe are synchronously ground through the grinding piece to remove burrs, and dust impurities at the cutting position are sucked and stored through a dust suction mechanism.

Description

Technical Field

[0001] This invention relates to the field of copper tube cutting equipment technology, specifically to a high-efficiency cutting device for the production of copper tubes for heat exchangers. Background Technology

[0002] In the field of heat exchanger manufacturing, copper tubes are the core heat transfer element, and their processing accuracy directly affects the assembly quality and heat transfer efficiency of the heat exchanger. During the production process of copper tubes, it is often necessary to cut long copper tubes into sections to the required length according to the size of the heat exchanger before proceeding with subsequent processing and assembly operations.

[0003] Currently, in the production process of copper tubes for heat exchangers, the cutting and deburring processes are generally separate and need to be completed in steps using different equipment. After the copper tubes are cut by the cutting equipment, they need to be transported manually or mechanically to specialized deburring equipment (such as grinding machines, chemical pickling devices, etc.) for subsequent processing. This process increases material handling time and labor costs. Existing cutting equipment has difficulty removing burrs from the inner and outer edges of the copper tube cross-section simultaneously during the cutting process, resulting in relatively low processing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency cutting device for the production of copper tubes for heat exchangers, which facilitates the simultaneous removal of burrs on the cut surface during the cutting process, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency cutting device for the production of copper tubes for heat exchangers, comprising a machine body, a cutting mechanism, and a dust extraction mechanism. The machine body is equipped with a conveyor frame for transporting the copper tubes. The cutting mechanism includes a fixed ring fixedly mounted on the machine body, with a rotating ring rotatably connected within the fixed ring. The rotating ring is equipped with multiple sets of cutting blades. Each cutting blade has a grinding disc on both sides capable of grinding the copper tubes on both sides. The grinding disc has an elastic strip-shaped structure. The cutting mechanism can drive the rotating ring to rotate at high speed, controlling the tips of the multiple sets of cutting blades to move simultaneously. The blade moves towards the axis of the rotating ring, and the cutting blade rotates to clamp and cut the outer wall of the copper tube. After cutting, the two ends of the grinding disc move along one side of the copper tube, causing the grinding disc to contact the end of the copper tube and bend. The grinding disc simultaneously grinds and removes burrs from the outer and inner edges of the cut end face of the copper tube. The dust collection mechanism is installed on the rotating ring and is used to suck up and store dust and impurities at the cutting position during the rotation of the rotating ring, reducing the spread of dust and facilitating the simultaneous removal of burrs on the cut surface during the cutting process.

[0006] Preferably, the cutting mechanism further includes fixing buckles fixedly installed on both sides of the grinding disc, a storage groove is provided on the side of the cutting blade for storing the grinding disc, a rotating plate is rotatably connected to the fixing buckle, a pushing block is rotatably connected to the end of the rotating plate away from the fixing buckle, a fixing frame is slidably connected to the outer wall of the pushing block, the fixing frame is fixedly installed in the storage groove, a rotating component is provided on the machine body for driving the rotating ring to rotate, and a control component is provided on the machine body for controlling the movement state of the cutting blade and the grinding disc.

[0007] Preferably, the control component includes an annular tube fixedly installed within the fixed ring, an annular groove communicating with the annular tube is formed on the outer wall of the rotating ring, the annular groove is used to store hydraulic oil, multiple sliding grooves communicating with the annular groove are formed on the rotating ring, the cutting blade is slidably connected to the inner wall of the sliding groove, one end of the cutting blade is fixedly connected to a first tension spring fixedly connected to the sliding groove, and the machine body is provided with a hydraulic component for controlling the hydraulic pressure in the sliding groove and the fixed frame, so as to facilitate the control of the movement state of the cutting blade and the grinding disc.

[0008] Preferably, the hydraulic component includes a second tension spring fixedly mounted on the push block, with one end of the second tension spring away from the push block fixedly connected to the fixed frame. The fixed frame is used to store hydraulic oil. A delivery pipe is fixedly connected inside the cutting blade. The delivery pipe is connected to multiple sets of the fixed frames. A connecting pipe is provided inside the rotating ring, which can communicate with one end of the delivery pipe. One end of the connecting pipe is connected to the sliding groove. The machine body is provided with a driving component for controlling the hydraulic intensity in the annular groove, which facilitates the control of the hydraulic intensity in the sliding groove and the fixed frame.

[0009] Preferably, the dust collection mechanism includes a collection box fixedly installed on the fixed ring, a filter screen fixedly connected to the side of the collection box, an impeller ring coaxially fixedly connected to the side of the rotating ring, a rotating cavity opened inside the fixed ring, the impeller ring rotatably connected to the inner wall of the rotating cavity, a conveying groove opened inside the fixed ring for communicating with the rotating cavity and the collection box, and multiple sets of suction holes evenly opened on the fixed ring and communicating with the rotating cavity, so as to facilitate the suction and storage of dust and impurities at the cutting position during the rotation of the rotating ring, thereby reducing the diffusion of dust.

[0010] Preferably, the driving component includes a hydraulic cylinder fixedly installed inside the machine body, a hydraulic plate slidably connected to the inner wall of the hydraulic cylinder, an electric telescopic rod fixedly connected inside the machine body, the telescopic end of the electric telescopic rod being fixedly connected to the side of the hydraulic plate, and a bent pipe connected to one end of the hydraulic cylinder away from the electric telescopic rod, one end of the bent pipe being connected to the annular pipe, which facilitates control of the hydraulic pressure in the annular groove.

[0011] Preferably, the rotating component includes a drive motor fixedly installed inside the machine body, a drive gear is coaxially fixedly connected to the output end of the drive motor, and an external gear ring is fixedly connected to the outer wall of the rotating ring. The external gear ring meshes with the drive gear to facilitate the rotation of the rotating ring.

[0012] Preferably, the dust suction mechanism has two sets and is symmetrically arranged on both sides of the rotating ring, which facilitates synchronous suction of both sides of the cutting blade and prevents dust from spreading outward from both sides of the fixed ring.

[0013] Preferably, the grinding disc is made of spring steel and has sandpaper for grinding attached to its surface, which helps to improve the overall service life of the grinding disc and makes it easy to replace the sandpaper.

[0014] Preferably, a limiting block is fixedly connected to the side of the cutting blade and slidably connected to the inner wall of the sliding groove, which facilitates the limiting control of the maximum moving distance of the cutting blade.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention provides a high-efficiency cutting device for the production of copper tubes in heat exchangers. It solves the problem that existing copper tube cutting equipment is difficult to simultaneously and efficiently remove burrs from the edges of the tube cross-section during the cutting process. The cutting mechanism drives a rotating ring to rotate at high speed, controlling the tips of multiple cutting blades to move synchronously towards the axis of the rotating ring. The rotation of the cutting blades completes the clamping and cutting operation on the outer wall of the copper tube. After cutting, the two ends of the linkage grinding disc move to one side of the copper tube, causing the grinding disc to contact the end of the copper tube and bend. The grinding disc simultaneously grinds and removes burrs from the outer and inner edges of the cut end face of the copper tube. A dust suction mechanism sucks and stores dust and impurities at the cutting position during the rotation of the rotating ring, reducing dust diffusion. 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 structural diagram of the cutting mechanism of the present invention; Figure 3 This is a partial structural diagram of the dust collection mechanism of the present invention; Figure 4 This is a partial structural cross-sectional view of the dust collection mechanism of the present invention; Figure 5 for Figure 4 Enlarged view of region A in the middle; Figure 6 This is a partial structural cross-sectional view of the driving component of the present invention; Figure 7 This is a partial sectional view of the cutting mechanism of the present invention; Figure 8 for Figure 7 Enlarged view of region B in the middle; Figure 9 This is a partial structural exploded view of the cutting mechanism of the present invention; Figure 10 for Figure 9 Enlarged view of region C; Figure 11 This is a partial structural diagram of the grinding disc of the present invention in a bent grinding state; Figure 12 for Figure 11 Enlarged view of region D in the middle; Figure 13 This is a partial structural diagram of the cutting blade of the present invention in the closed state.

[0017] In the diagram: 1-Main body; 2-Conveyor frame; 3-Cutting mechanism; 4-Fixing ring; 5-Rotating ring; 6-Cutting blade; 7-Grinding disc; 8-Dust collection mechanism; 9-Fixing buckle; 10-Storage tank; 11-Rotating plate; 12-Pushing block; 13-Fixing frame; 14-Rotating component; 15-Control component; 16-Annular tube; 17-Annular groove; 18-Sliding groove; 19-First tension spring; 20-Hydraulic component; 21-Second tension spring; 22-Conveying pipe; 23-Connecting pipe; 24-Drive component; 25-Collection box; 26-Filter screen; 27-Impeller ring; 28-Rotating cavity; 29-Conveying groove; 30-Suction hole; 31-Hydraulic cylinder; 32-Hydraulic plate; 33-Electric telescopic rod; 34-Bend pipe; 36-Drive motor; 37-Drive gear; 38-External gear ring; 39-Limiting block; 40-Copper pipe. Detailed Implementation

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

[0019] Please see Figures 1-13This invention provides a technical solution: a high-efficiency cutting device for the production of copper tubes for heat exchangers, comprising a body 1, a cutting mechanism 3, and a dust extraction mechanism 8. The body 1 is equipped with a conveyor frame 2 for conveying copper tubes 40. The conveyor frame 2 can be adjusted in height according to the size of the copper tubes 40, aligning the axis of the copper tubes 40 with the axis of the rotating ring 5. The conveyor frame 2 can control the conveying state and distance of the copper tubes 40. The cutting mechanism 3 includes a fixed ring 4 fixedly mounted on the body 1, with a rotating ring 5 rotatably connected inside the fixed ring 4. Multiple sets of cutting blades 6 are provided on the rotating ring 5. Each cutting blade 6 has a grinding disc 7 on both sides, capable of grinding the copper tubes 40 on both sides. The grinding disc 7 has an elastic strip structure and is made of spring steel with a surface... Sandpaper for polishing is attached to the surface. The cutting mechanism 3 can drive the rotating ring 5 to rotate at high speed, controlling the tips of multiple sets of cutting blades 6 to move synchronously towards the axis of the rotating ring 5. The rotation of the cutting blades 6 completes the clamping and cutting operation on the outer wall of the copper tube 40. After the cutting is completed, the two ends of the linkage grinding disc 7 move to one side of the copper tube 40, so that the grinding disc 7 abuts against the end of the copper tube 40 and bends the grinding disc 7. The grinding disc 7 simultaneously grinds the outer and inner edges of the cut end face of the copper tube 40 to remove burrs. The dust collection mechanism 8 is installed on the rotating ring 5. There are two sets of dust collection mechanisms 8, which are symmetrically arranged on both sides of the rotating ring 5. They are used to suck up and store the dust and impurities at the cutting position during the rotation of the rotating ring 5, reducing the spread of dust.

[0020] The cutting mechanism 3 also includes fixing buckles 9 fixedly installed on both sides of the grinding disc 7. The side of the cutting blade 6 is provided with a storage groove 10 for storing the grinding disc 7. A rotating plate 11 is rotatably connected to the fixing buckle 9. A pushing block 12 is rotatably connected to the end of the rotating plate 11 away from the fixing buckle 9. A fixing frame 13 is slidably connected to the outer wall of the pushing block 12. The fixing frame 13 is fixedly installed in the storage groove 10. The machine body 1 is provided with a rotating component 14 for driving the rotating ring 5 to rotate. The machine body 1 is provided with a control component 15 for controlling the movement state of the cutting blade 6 and the grinding disc 7.

[0021] The control component 15 includes an annular tube 16 fixedly installed in the fixed ring 4. The outer wall of the rotating ring 5 is provided with an annular groove 17 that communicates with the annular tube 16. The annular groove 17 is used to store hydraulic oil. The rotating ring 5 is provided with multiple sets of sliding grooves 18 that communicate with the annular groove 17. The cutting blade 6 is slidably connected to the inner wall of the sliding groove 18. The side of the cutting blade 6 is fixedly connected with a limiting block 39 that is slidably connected to the inner wall of the sliding groove 18. One end of the cutting blade 6 is fixedly connected with a first tension spring 19 that is fixedly connected to the sliding groove 18. The machine body 1 is provided with a hydraulic component 20 for controlling the hydraulic pressure in the sliding groove 18 and the fixed frame 13.

[0022] The hydraulic component 20 includes a second tension spring 21 fixedly mounted on the push block 12. The end of the second tension spring 21 away from the push block 12 is fixedly connected to the fixed frame 13. The fixed frame 13 is used to store hydraulic oil. A delivery pipe 22 is fixedly connected inside the cutting blade 6. The delivery pipe 22 is connected to multiple sets of fixed frames 13. A connecting pipe 23 is provided inside the rotating ring 5, which can be connected to one end of the delivery pipe 22. One end of the connecting pipe 23 is connected to the sliding groove 18. A drive component 24 is provided inside the machine body 1 to control the hydraulic pressure in the annular groove 17.

[0023] The vacuuming mechanism 8 includes a collection box 25 fixedly installed on the fixed ring 4. A filter screen 26 is fixedly connected to the side of the collection box 25. An impeller ring 27 is coaxially fixedly connected to the side of the rotating ring 5. A rotating cavity 28 is opened inside the fixed ring 4. The impeller ring 27 is rotatably connected to the inner wall of the rotating cavity 28. A conveying groove 29 for connecting the rotating cavity 28 and the collection box 25 is opened inside the fixed ring 4. Multiple sets of suction holes 30 connected to the rotating cavity 28 are evenly opened on the fixed ring 4.

[0024] The driving component 24 includes a hydraulic cylinder 31 fixedly installed inside the machine body 1. A hydraulic plate 32 is slidably connected to the inner wall of the hydraulic cylinder 31. An electric telescopic rod 33 is fixedly connected inside the machine body 1. The telescopic end of the electric telescopic rod 33 is fixedly connected to the side of the hydraulic plate 32. A bent pipe 34 is connected to the end of the hydraulic cylinder 31 away from the electric telescopic rod 33. One end of the bent pipe 34 is connected to the annular pipe 16.

[0025] The rotating component 14 includes a drive motor 36 fixedly installed inside the body 1. The drive motor 36 is preferably model Y80M1-2. The output end of the drive motor 36 is coaxially fixedly connected to a drive gear 37. An external gear ring 38 is fixedly connected to the outer wall of the rotating ring 5. The external gear ring 38 meshes with the drive gear 37.

[0026] Working principle: The copper tube 40 to be cut is conveyed through the existing conveyor frame 2. The height of the conveyor frame 2 can be controlled by a hydraulic lifting platform to align the axis of the copper tube 40 with the axis of the rotating ring 5. When the position on the copper tube 40 to be cut is flush with the tip of the cutting blade 6, the drive motor 36 is started to drive the drive gear 37 to rotate. The drive gear 37 drives the external gear ring 38 to rotate at high speed together with the rotating ring 5, so that the cutting blade 6 rotates around the outer wall of the copper tube 40. At the same time, the cutting blade 6 rotates towards its vertical side, improving the cutting efficiency. The electric telescopic rod 33 is started to push the hydraulic plate 32 to slide inside the hydraulic cylinder 31, thus moving the hydraulic cylinder 31. Hydraulic oil is pushed to the bend 34, and then transported through the bend 34, the annular pipe 16, and the annular groove 17 to the sliding groove 18. The pressure inside the sliding groove 18 increases, thereby gradually pushing the cutting blade 6 towards the outer wall of the copper pipe 40. During this process, one end of the conveying pipe 22 is blocked by the limiting block 39 and is not connected to the hydraulic oil inside the sliding groove 18. The bottom end of the connecting pipe 23 is also blocked by the side wall of the cutting blade 6 and is not connected to the conveying pipe 22. As the cutting blade 6 moves, the second tension spring 21 pulls the pushing block 12, and the rotating plate 11 drives the fixing buckle 9 to be stored in the storage groove 10, so that the grinding disc 7 is entirely inside the storage groove 10 and will not affect the moving and cutting state of the cutting blade 6.

[0027] It is worth noting that during the movement of the cutting blade 6, the tips of multiple cutting blades 6 can simultaneously contact and cut the outer wall of the copper tube 40. This cutting method is more stable than the traditional single-sided vertical cutting of the cutting disc. During the cutting process, the outer wall of the copper tube 40 can be stably clamped, and the force on the copper tube 40 is relatively balanced around it, reducing the deformation and bending of the side wall of the copper tube 40. Furthermore, the entire process is hydraulically driven, making the driving force of the cutting blade 6 more gentle when it is pushed against the outer wall of the copper tube 40. For some easier-to-cut copper tubes 40, only a small hydraulic pressure is required, while for some high-strength and difficult-to-cut copper tubes 40, the pressure can be continuously increased to increase the pushing force of the cutting blade 6 against the outer wall of the copper tube 40, and the copper tube 40 is gradually cut off during continuous rotation.

[0028] After the multiple sets of cutting blades 6 are closed, as shown in the attached figure. Figure 13At this time, the sidewalls of multiple cutting blades 6 are in contact with each other, thus cutting copper tubes 40 of different sizes. Simultaneously, the conveying pipe 22 slides to the position where it connects with the connecting pipe 23. Hydraulic oil is then transported through the connecting pipe 23 to the conveying pipe 22 and into the fixed frame 13. This pushes the pushing block 12 out of the fixed frame 13. The pushing block 12 pushes the rotating plate 11, causing the fixing buckle 9 and the grinding disc 7 to be pushed out of the storage slot 10 together. At this time, the middle part of the grinding disc 7 will remain in contact with the cross-section of the copper tube 40 due to the contact with the cross-section of the copper tube 40. The grinding disc 7 is in a conflicting grinding state, while both ends are pushed outward in a curved shape by the rotating plate 11. At the same time, the grinding disc 7 will rotate together with the rotating ring 5. At this time, the burrs on the inner and outer edges of the copper tube 40 cross-section can be removed by the outer wall of the curved grinding disc 7. This curved design can better fit the burr position of the cross-section, improve the cleaning efficiency, and because the grinding disc 7 is relatively long, when its two ends are bent, the middle position can flexibly adapt to copper tubes 40 with various inner diameters for fitting, with a wide range of adaptability.

[0029] During the cutting and grinding process, the rotating ring 5 will also drive the impeller rings 27 on both sides to rotate synchronously. When the impeller rings 27 rotate at high speed, they can draw the air on both sides of the cutting blade 6 into the rotating chamber 28 through the air intake hole 30, and then transport it to the collection box 25 through the conveying groove 29. After the airflow is filtered by the filter screen 26, the impurities are left in the collection box 25 for collection. The filter screen 26 and the impurities in the collection box 25 need to be cleaned regularly. This device can directly draw the airflow from the openings at both ends of the fixed ring 4 into the collection box 25 for filtration, thereby reducing the spread of dust during the cutting of the copper tube 40 at the source.

[0030] After the operation is completed, the drive motor 36 stops running, and the electric telescopic rod 33 drives the hydraulic plate 32 to slide in the opposite direction. The hydraulic oil in the sliding groove 18 is then drawn into the hydraulic cylinder 31 through the annular groove 17, annular pipe 16, and bend pipe 34. The limiting block 39 can be made of magnet, which can magnetically attract the cutting blade 6 at the end of the sliding groove 18, thus initially limiting the cutting blade 6. In the initial stage when the hydraulic strength in the sliding groove 18 decreases, the negative pressure is small, and the hydraulic oil in the fixed frame 13 can be drawn into the sliding groove 31 through the delivery pipe 22 and connecting pipe 23. Within the moving groove 18, the pushing block 12 slides backward into the fixed frame 13 under the pull of the second tension spring 21, thereby causing the rotating plate 11 to drive the fixing buckle 9 and the grinding disc 7 to be stored inside the storage groove 10, completing the reset. Afterward, the pressure in the sliding groove 18 continues to decrease, and the limiting block 39 gradually releases the magnetic attraction with the rotating ring 5. With the pull of the first tension spring 19, the cutting blade 6 can be driven to slide into the sliding groove 18 to complete the storage and reset operation. Then, the copper tube 40 is transported to the required position again through the conveyor frame 2 for subsequent cutting and unloading operations.

[0031] It is worth noting that since the copper tubes 40 of the heat exchanger have relatively small size variations, this device can cut and process copper tubes 40 of different sizes within a set range, making it highly versatile. During the cutting process, the cutting blade 6 only needs to abrade against the copper tube 40 through contact wear. The side of the cutting blade 6 near the connecting pipe 23 is made of high-strength alloy steel to prevent wear during long-term use, which could reduce the sealing performance of the bottom end of the connecting pipe 23. At the same time, a sealing ring can be installed at the bottom opening of the connecting pipe 23 to improve the sealing performance between the bottom end of the connecting pipe 23 and the side wall of the cutting blade 6. When sealing the sliding groove 18, sealing is only required through the top of the cutting blade 6, and this position will not slip out of the sliding groove 18, so excessive wear is generally not expected. By setting appropriate sealing components, the sealing performance of the hydraulic oil in the sliding groove 18 can be improved, preventing hydraulic oil leakage.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency cutting device for heat exchanger copper pipe production, characterized in that, Include: The machine body (1), the machine body (1) is equipped with conveying frame (2) for conveying copper pipe; Also includes: Cutting mechanism (3), the cutting mechanism (3) includes fixedly installed on the machine body (1) fixed ring (4), the fixed ring (4) is rotatably connected with rotating ring (5), the rotating ring (5) is equipped with multiple cutting knives (6), both sides of the cutting knife (6) are respectively equipped with grinding piece (7) capable of grinding both sides of copper pipe, the grinding piece (7) is elastic strip structure, the cutting mechanism (3) can drive the rotating ring (5) to rotate at high speed, control multiple cutting knife (6) tip synchronous to the axis of the rotating ring (5) one side moves, through the rotation of the cutting knife (6) completes the clamping and cutting operation of copper pipe outer wall, and after cutting is completed, the both ends of the grinding piece (7) copper pipe side is moved, so that the grinding piece (7) and the end of copper pipe are in contact and the grinding piece (7) is bent, the grinding piece (7) is used for synchronous grinding of copper pipe cutting end face outer edge and inner edge and removing burr; Dust collection mechanism (8), the dust collection mechanism (8) is installed on the rotating ring (5), for storing dust and impurities at the cutting position during the rotation of the rotating ring (5), reducing the spread of dust.

2. The high-efficiency cutting device for the production of copper tubes for heat exchangers according to claim 1, characterized in that: The cutting mechanism (3) further includes a fixed buckle (9) fixedly installed on both ends of the grinding piece (7), a storage groove (10) is formed in the side surface of the cutting knife (6), the storage groove (10) is used for storing the grinding piece (7), a rotating plate (11) is rotatably connected to the fixed buckle (9), a pushing block (12) is rotatably connected to one end of the rotating plate (11) away from the fixed buckle (9), a fixed frame (13) is slidably connected to the outer wall of the pushing block (12), the fixed frame (13) is fixedly installed in the storage groove (10), a rotating member (14) is provided on the machine body (1) for driving the rotating ring (5) to rotate, a control member (15) is provided on the machine body (1) for controlling the movement state of the cutting knife (6) and the grinding piece (7).

3. The high-efficiency cutting device for heat exchanger copper pipe production according to claim 2, characterized in that: The control member (15) includes an annular tube (16) fixedly installed in the fixed ring (4), an annular groove (17) is formed in the outer wall of the rotating ring (5) and communicates with the annular tube (16), the annular groove (17) is used for storing hydraulic oil, a plurality of sliding grooves (18) are formed in the rotating ring (5) and communicate with the annular groove (17), the cutting knife (6) is slidably connected to the inner wall of the sliding groove (18), one end of the cutting knife (6) is fixedly connected with a first tension spring (19) fixedly connected with the sliding groove (18), a hydraulic member (20) is provided on the machine body (1) for controlling the hydraulic strength of the sliding groove (18) and the fixed frame (13).

4. The high-efficiency cutting device for heat exchanger copper pipe production according to claim 3, characterized in that: The hydraulic part (20) comprises a second tension spring (21) fixedly installed on the push block (12), one end of the second tension spring (21) away from the push block (12) is fixedly connected with the fixed frame (13), the fixed frame (13) is used for storing hydraulic oil, the cutting knife (6) is fixedly connected with a conveying pipe (22), the conveying pipe (22) is in communication connection with a plurality of fixed frames (13), the rotating ring (5) is provided with a connecting pipe (23) in communication with one end of the conveying pipe (22), one end of the connecting pipe (23) is in communication with the sliding groove (18), and the body (1) is provided with a driving piece (24) for controlling the hydraulic strength in the annular groove (17).

5. The high-efficiency cutting device for heat exchanger copper pipe production according to claim 1, characterized in that: The dust collection mechanism (8) comprises a collection box (25) fixedly installed on the fixed ring (4), the side surface of the collection box (25) is fixedly connected with a filter screen (26), the side surface of the rotating ring (5) is coaxially fixedly connected with an impeller ring (27), the fixed ring (4) is provided with a rotating cavity (28), the impeller ring (27) is rotatably connected with the inner wall of the rotating cavity (28), the fixed ring (4) is provided with a conveying groove (29) for communicating the rotating cavity (28) and the collection box (25), and a plurality of air suction holes (30) in communication with the rotating cavity (28) are uniformly formed in the fixed ring (4).

6. The high-efficiency cutting device for heat exchanger copper pipe production according to claim 4, characterized in that: The driving piece (24) comprises a hydraulic cylinder (31) fixedly installed in the body (1), the inner wall of the hydraulic cylinder (31) is slidably connected with a hydraulic plate (32), the body (1) is fixedly connected with an electric telescopic rod (33), the telescopic end of the electric telescopic rod (33) is fixedly connected with the side surface of the hydraulic plate (32), one end of the hydraulic cylinder (31) away from the electric telescopic rod (33) is in communication connection with an elbow pipe (34), and one end of the elbow pipe (34) is in communication connection with the annular pipe (16).

7. The high-efficiency cutting device for heat exchanger copper pipe production according to claim 2, characterized in that: The rotating piece (14) comprises a driving motor (36) fixedly installed in the body (1), the output end of the driving motor (36) is coaxially fixedly connected with a driving gear (37), the outer wall of the rotating ring (5) is fixedly connected with an outer gear ring (38), and the outer gear ring (38) is engaged with the driving gear (37).

8. The high-efficiency cutting device for heat exchanger copper pipe production according to claim 1, characterized in that: The dust collection mechanism (8) is provided with two groups and is symmetrically arranged on both sides of the rotating ring (5).

9. The high-efficiency cutting device for heat exchanger copper pipe production according to claim 1, characterized in that: The polishing piece (7) is made of spring steel.

10. The high-efficiency cutting device for heat exchanger copper pipe production according to claim 1, characterized in that: The side surface of the cutting knife (6) is fixedly connected with a limiting block (39).

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