A kind of mechanism for pipe high-speed cutting and port chamfering without burr

Abstract

This invention discloses a burr-free high-speed cutting and end chamfering mechanism for pipes, relating to the field of pipe cutting technology. It includes a main body, a rotary drive assembly, a radial adjustment assembly, a cutting mechanism, a chamfering mechanism, and a pipe. The rotary drive assembly is installed inside the main body and drives the radial adjustment assembly, cutting mechanism, and chamfering mechanism to synchronously revolve around the pipe. The rotary drive assembly includes a ring-cutting motor module, a rotating gear ring, and a movable cylinder. This invention eliminates the need for multiple pipe clamping and transfer operations, significantly simplifying the processing flow, reducing labor intensity, and significantly improving batch processing efficiency. The coaxial positioning and synchronous operation structure avoids coaxiality and perpendicularity deviations caused by multiple positioning operations, ensuring pipe end processing accuracy and dimensional consistency, and improving assembly sealing and connection reliability. It eliminates the need for separate cutting and chamfering machines, reducing equipment investment and space occupation, and is more suitable for on-site construction and small-scale processing scenarios.

Description

Technical Field

[0001] This invention relates to the field of pipe cutting technology, specifically to a burr-free high-speed cutting and end chamfering mechanism for pipes. Background Technology

[0002] In the fields of pipe processing, pipe fitting assembly, and various pipeline engineering construction, the processing quality of the pipe ends directly determines the accuracy of subsequent assembly, the sealing performance of the connection, and the safety and service life of the entire pipeline system. Among these processes, the flattening of the pipe end face is a fundamental processing step, the purpose of which is to ensure the flatness of the pipe end face and to ensure precise connection between pipes and fittings, and between pipes themselves. The chamfering of the inner and outer edges of the pipe opening is a necessary step in subsequent assembly. Chamfering can effectively remove burrs and flash generated during the cutting process, prevent sharp pipe edges from scratching seals, sealing rings, and other accessories, reduce the connection resistance during assembly, prevent assembly deviations caused by sharp edges, and further improve the sealing performance and stability of the connection.

[0003] In existing technologies, the cutting and chamfering of one end of pipes generally employs split-type processing equipment, completing the entire end-processing operation in steps. Specifically, the operator first needs to fix the pipe to be processed onto the clamp of the pipe cutting machine. According to the preset length and end face requirements, the cutting machine is started to cut one end of the pipe to achieve the required flatness. After the cutting operation is completed, the operator needs to release the clamp, remove the cut pipe from the cutting machine, and then transfer it to a dedicated chamfering device (such as a benchtop chamfering machine or a portable beveling machine), or use a handheld chamfering tool to re-clamp and position the pipe. Then, the inner and outer edges of the pipe end are chamfered separately until burrs are removed and a chamfered structure that meets the requirements is formed.

[0004] The existing processing methods described above have many drawbacks, and the overall operation process is quite cumbersome, specifically as follows:

[0005] Firstly, the process is fragmented, with flattening and chamfering being two separate processing steps. This requires operators to perform multiple clamping, positioning, and transfer operations, which not only increases the labor intensity of operators but also leads to low overall work efficiency, making it difficult to meet the production needs of large-volume pipe processing.

[0006] Secondly, multiple clamping and positioning can easily lead to positioning deviations. Since the clamping references of the pipe on the cutting machine and the chamfering equipment are difficult to be completely consistent, it is easy to cause deviations in the coaxiality and perpendicularity of the pipe cutting end face and the chamfer position, which in turn affects the subsequent docking accuracy of the pipe and fittings. In severe cases, it may lead to loose connection and sealing failure, affecting the safety of the pipeline system.

[0007] Third, the investment cost of split-type equipment is relatively high. It requires both pipe cutting machine and chamfering equipment, and both types of equipment require a certain amount of production space. For small processing enterprises or on-site construction scenarios, the pressure of equipment investment and space occupation is relatively large.

[0008] Fourth, the processing method using handheld chamfering tools also has problems such as uneven processing accuracy and low operator safety. Improper operation can easily lead to inconsistent chamfering dimensions or safety hazards such as personnel scratches. Summary of the Invention

[0009] Based on this, the purpose of the present invention is to provide a burr-free high-speed cutting and end chamfering mechanism for pipes, so as to solve the technical problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a burr-free high-speed cutting and end chamfering mechanism for pipes, comprising a main body, a rotary drive assembly, a radial adjustment assembly, a cutting mechanism, a chamfering mechanism, and a pipe; the rotary drive assembly is installed inside the main body and is used to drive the radial adjustment assembly, the cutting mechanism, and the chamfering mechanism to synchronously perform circular revolution around the pipe; the rotary drive assembly includes a ring cutting motor module, a rotary gear ring, and a movable cylinder;

[0011] The circumferential cutting motor module is fixed to the inner wall of the main body, the rotating gear ring is fixed to the outer wall of the movable cylinder and meshes with the gear at the output end of the circumferential cutting motor module, and the movable cylinder rotates with the main body through the movable support roller;

[0012] The radial adjustment component is connected to the rotary drive component for driving the cutting mechanism and the chamfering mechanism to feed and retract synchronously along the radial direction of the tube. The radial adjustment component includes a drive ring, a drive gear ring and a radial adjustment motor module.

[0013] The drive ring is sleeved inside the movable cylinder. The drive ring has multiple sets of inclined grooves, and the movable cylinder has multiple sets of straight grooves corresponding to the inclined grooves. The radial adjustment motor module drives the drive ring to rotate relative to the movable cylinder through the drive gear ring.

[0014] The cutting mechanism can perform high-speed circumferential cutting on the pipe during radial feed, achieving burr-free cutting. The cutting mechanism includes a cutting motor, a transmission frame, a saw blade, and a clamping plate.

[0015] The transmission frame is equipped with a first bearing, which is slidably engaged with the straight groove and the inclined groove respectively. The cutting motor drives the saw blade to rotate and feed radially along the pipe through the transmission frame.

[0016] The clamping plate is fixedly connected to the transmission frame by bolts, which serves to clamp and fix the saw blade.

[0017] The chamfering mechanism operates coaxially and synchronously with the cutting mechanism, enabling simultaneous chamfering of the pipe end face during pipe cutting. The chamfering mechanism includes a radial sliding plate, a bracket, a chamfering blade, and a radial shrinking rod.

[0018] The radial contraction rod is provided with a second bearing, which is slidably engaged with the straight groove and the inclined groove respectively, so that the radial sliding plate moves radially synchronously with the radial contraction rod;

[0019] The chamfering mechanism also includes a first fixed guide rod and a slide rod;

[0020] The bracket passes through the movable cylinder and is slidably connected to it via two sets of sliding rods fixed at both ends. A spring frame located outside the first fixed guide rod is fixed between the bracket and the radial sliding plate.

[0021] An arc-shaped guide rail and a chamfering angle adjustment motor module are provided between the chamfering blade and the bracket. The chamfering angle adjustment motor module is used to adjust the tilt angle of the chamfering blade, with an adjustment range of 15°-30°.

[0022] The movable cylinder is equipped with a mounting plate and a guide rail. The guide rail is slidably connected to a sliding frame fixed to the outside of the cutting motor, which serves to guide the cutting motor.

[0023] The mounting plate is used to install the radial adjustment motor module and serves to fix the radial adjustment motor module.

[0024] The chamfering mechanism is also equipped with an auxiliary clamping structure, which is used to center and clamp the outer wall of the pipe before processing to ensure the coaxiality of the processing. The auxiliary clamping structure includes a telescopic frame, clamping rollers, a spring frame and a second fixed guide rod.

[0025] The second fixed guide rod is fixed to the inner wall of the movable cylinder and passes through the radial sliding plate, and the radial sliding plate and the second fixed guide rod are slidably connected;

[0026] The telescopic frame and the radial sliding plate are elastically connected by a spring frame located outside the second fixed guide rod, which is used to center and clamp the pipe before chamfering.

[0027] Both sides of the main body are provided with end caps. The inner sides of the two sets of end caps serve to limit the axial movement of the movable cylinder without affecting the radial rotation of the movable cylinder.

[0028] A control box is provided on the outside of the main body. The control box is used to control the start, stop and action parameters of the rotary drive assembly, radial adjustment assembly, cutting mechanism and chamfering mechanism.

[0029] An electric slip ring module is provided between the outer wall of the movable cylinder and the inner wall of the main body. The movable ring of the electric slip ring module is fixed to the outer wall of the movable cylinder, and the conductive ring is fixed to the inner wall of the main body. The top of the conductive ring is fixed with a conductive interface extending to the outside of the main body, which is used to provide power supply and signal transmission for the electrical components in the rotating state.

[0030] In summary, the present invention has the following main beneficial effects:

[0031] This invention integrates pipe cutting and end chamfering into a single mechanism, enabling simultaneous cutting and chamfering in a single clamping operation. This effectively solves the problems of cumbersome processes, low efficiency, poor precision, high cost, and insufficient safety associated with existing separate processing methods. Compared to existing technologies, this invention eliminates the need for multiple clamping and transfer of pipes, significantly simplifying the processing flow, reducing labor intensity, and substantially improving batch processing efficiency. The coaxial positioning and synchronous operation structure avoids coaxiality and perpendicularity deviations caused by multiple positioning steps, ensuring pipe end processing accuracy and dimensional consistency, and improving assembly sealing and connection reliability. The high degree of equipment integration eliminates the need for separate cutting and chamfering machines, reducing equipment investment and space requirements, making it more suitable for on-site construction and small-scale processing scenarios. Attached Figure Description

[0032] Figure 1 This is an exploded view of the entire invention;

[0033] Figure 2 This is a cross-sectional view of the entire invention;

[0034] Figure 3 For the present invention Figure 2 Enlarged view of point A;

[0035] Figure 4 This is an enlarged exploded view of the cutting mechanism of the present invention;

[0036] Figure 5 For the present invention Figure 2 Enlarged view of point B;

[0037] Figure 6 This is an enlarged exploded view of the chamfering mechanism of the present invention;

[0038] Figure 7 This is a first-view enlarged structural view of the movable cylinder of the present invention;

[0039] Figure 8 This is a magnified view of the second perspective structure of the movable cylinder of the present invention;

[0040] Figure 9 This is an enlarged view of the structure of the drive ring of the present invention;

[0041] Figure 10 This is a schematic diagram of the overall structure of the present invention.

[0042] In the picture:

[0043] 1. Main body;

[0044] 2. Movable cylinder; 201. Straight groove; 202. Guide rail; 203. Mounting plate;

[0045] 3. Drive ring; 301. Inclined groove; 302. Drive gear ring; 303. Radial adjustment motor module;

[0046] 4. Cutting mechanism; 401. Cutting motor; 402. Transmission frame; 403. Saw blade; 404. Clamping plate; 405. First bearing; 406. Sliding frame;

[0047] 5. Chamfering mechanism; 501. Radial sliding plate; 502. First fixed guide rod; 503. Bracket; 504. Arc-shaped guide rail; 505. Chamfering blade; 506. Chamfering angle adjustment motor module; 507. Second fixed guide rod; 508. Spring frame; 509. Radial retraction rod; 510. Second bearing; 511. Slide rod; 512. Telescopic frame; 513. Clamping roller;

[0048] 6. Pipes;

[0049] 7. Electric slip ring module;

[0050] 8. Movable support roller;

[0051] 9. Ring-cut motor module; 10. Rotary gear ring;

[0052] 11. End cap; 12. Control box. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0054] The embodiments of the present invention will now be described.

[0055] Example 1

[0056] like Figure 1-10 As shown, a burr-free high-speed cutting and end chamfering mechanism for pipes includes a main body 1, a rotary drive assembly, a radial adjustment assembly, a cutting mechanism 4, a chamfering mechanism 5, and a pipe 6.

[0057] The rotary drive assembly is installed inside the main body 1. The rotary drive assembly includes a ring cutting motor module 9, a rotating gear ring 10, a movable cylinder 2, and a movable support roller 8. The ring cutting motor module 9 is fixedly installed on the inner wall of the main body 1. The rotating gear ring 10 is fixedly connected to the outer wall of the movable cylinder 2. The rotating gear ring 10 meshes with the output gear of the ring cutting motor module 9. The movable cylinder 2 forms a rotational engagement with the main body 1 through the movable support roller 8. It is used to drive the radial adjustment assembly, the cutting mechanism 4, and the chamfering mechanism 5 to synchronously revolve around the pipe 6.

[0058] The radial adjustment assembly and the rotary drive assembly form a transmission connection. The radial adjustment assembly includes a drive ring 3, a drive gear ring 302, and a radial adjustment motor module 303. The drive ring 3 is sleeved inside the movable cylinder 2. The drive ring 3 has multiple sets of inclined grooves 301. The movable cylinder 2 has multiple sets of straight grooves 201 corresponding to the inclined grooves 301. The radial adjustment motor module 303 drives the drive ring 3 to rotate relative to the movable cylinder 2 through the drive gear ring 302. This is used to simultaneously drive the cutting mechanism 4 and the chamfering mechanism 5 to feed and retract synchronously along the radial direction of the pipe 6.

[0059] The cutting mechanism 4 includes a cutting motor 401, a transmission frame 402, a saw blade 403, a clamping plate 404, a first bearing 405, and a sliding frame 406. The transmission frame 402 is equipped with the first bearing 405, which forms a sliding fit with the straight groove 201 and the inclined groove 301 respectively. The cutting motor 401 drives the saw blade 403 to rotate and feed radially along the pipe 6 through the transmission frame 402. The clamping plate 404 is fixedly connected to the transmission frame 402 by bolts and is used to clamp and fix the saw blade 403. During the radial feed process, the cutting mechanism 4 can perform high-speed circumferential cutting on the pipe 6 to achieve burr-free cutting.

[0060] The chamfering mechanism 5 operates coaxially and synchronously with the cutting mechanism 4. The chamfering mechanism 5 includes a radial sliding plate 501, a bracket 503, a chamfering blade 505, a radial shrinking rod 509, a second bearing 510, a first fixed guide rod 502, a slide rod 511, an arc-shaped guide rail 504, and a chamfering angle adjustment motor module 506. The second bearing 510 is provided on the radial shrinking rod 509. The second bearing 510 forms a sliding fit with the straight groove 201 and the inclined groove 301 respectively, so that the radial sliding plate 501 moves radially synchronously with the radial shrinking rod 509. The support 503 passes through the movable cylinder 2 and is slidably connected to it through two sets of sliding rods 511 fixed at both ends. A spring frame 508 located outside the first fixed guide rod 502 is fixed between the support 503 and the radial sliding plate 501. An arc-shaped guide rail 504 and a chamfering angle adjustment motor module 506 are provided between the chamfering blade 505 and the support 503. The chamfering angle adjustment motor module 506 is used to adjust the tilt angle of the chamfering blade 505. The chamfering mechanism 5 can simultaneously chamfer the end face of the pipe during the cutting process of the pipe 6.

[0061] The chamfering mechanism 5 is also equipped with an auxiliary clamping structure, which includes a telescopic frame 512, a clamping roller 513, a spring frame 508, and a second fixed guide rod 507. The second fixed guide rod 507 is fixed to the inner wall of the movable cylinder 2 and passes through the radial sliding plate 501, and the radial sliding plate 501 and the second fixed guide rod 507 are slidably connected. The telescopic frame 512 and the radial sliding plate 501 are elastically connected by the spring frame 508 located outside the second fixed guide rod 507, which is used to center and clamp the outer wall of the pipe 6 before processing to ensure the coaxiality of the processing.

[0062] The movable cylinder 2 is provided with a mounting plate 203 and a guide rail 202. The guide rail 202 is slidably connected to the sliding frame 406 fixed on the outside of the cutting motor 401, and is used to guide the cutting motor 401. The mounting plate 203 is used to install the radial adjustment motor module 303 and to fix the radial adjustment motor module 303.

[0063] Both sides of the main body 1 are provided with end caps 11. The inner sides of the two sets of end caps 11 are used to limit the axial movement of the movable cylinder 2 without affecting the circumferential rotation of the movable cylinder 2. A control box 12 is provided on the outer side of the main body 1. The control box 12 is used to control the start and stop and action parameters of the rotary drive assembly, radial adjustment assembly, cutting mechanism 4 and chamfering mechanism 5.

[0064] An electric slip ring module 7 is provided between the outer wall of the movable cylinder 2 and the inner wall of the main body 1. The movable ring of the electric slip ring module 7 is fixed to the outer wall of the movable cylinder 2, and the conductive ring is fixed to the inner wall of the main body 1. The top of the conductive ring is fixed with a conductive interface extending to the outside of the main body 1, which is used to provide power supply and signal transmission for the electrical components in the rotating state.

[0065] The working principle of this invention is as follows: When in use, before cutting the pipe 6, the angle of the chamfering knife 505 can be adjusted through the operation panel on the control box 12;

[0066] Specifically, the tip of the chamfering cutter 505 is located at the cutting groove of the pipe 6. The end of the chamfering cutter 505 is slidably connected to the arc-shaped guide rail 504, and the axis of the arc-shaped guide rail 504 coincides with the tip of the chamfering cutter 505. This activates the chamfering angle adjustment motor module 506 installed at the end of the chamfering cutter 505. The gear fixed at its output end meshes with the tooth groove opened on one side of the arc-shaped guide rail 504. As a result, the chamfering angle adjustment motor module 506 slides along the arc-shaped guide rail 504 with the chamfering cutter 505, thereby adjusting the angle of the chamfering cutter 505. The adjustment range is 15°-30°.

[0067] Based on the characteristics of pipe 6, after the chamfer angle is adjusted, the staff can manually insert pipe 6 from the side of the main body 1 near the chamfering mechanism 5. After the pipe 6 is inserted, it will pass through to the other side of the main body 1. After the pipe 6 is inserted, the staff can hold the pipe 6 in their hands to fix it, or they can use the existing pipe 6 clamp to clamp and fix the pipe. At the same time, the insertion distance of pipe 6 is the set cutting distance.

[0068] At this time, the staff started the cutting motor 401 of the three cutting mechanisms 4. The cutting motor 401 started and drove the saw blade 403 to rotate at high speed through the transmission frame 402 and the clamping plate 404 in sequence. At this time, the saw blade 403 had not yet contacted the outer wall of the pipe 6.

[0069] Two sets of first bearings 405 are provided on the outside of the transmission frame 402. The first set of first bearings 405 is located in the straight groove 201 of the movable cylinder 2, and the second set of first bearings 405 is located in the inclined groove 301 of the drive ring 3.

[0070] At this time, with the cooperation of the radial adjustment motor module 303 and the drive gear ring 302 installed on the movable cylinder 2, the drive ring 3 rotates radially relative to the movable cylinder 2. At this time, the inclined groove 301 will drive the transmission frame 402 to be limited by the straight groove 201, and the cutting mechanism 4 will retract radially relative to the movable cylinder 2. That is, at this time, the saw blade 403 gradually contacts the pipe 6 and performs a cutting operation on it.

[0071] At the same time, while the drive ring 3 rotates radially, it will drive the radial contraction rods 509 of the three sets of chamfering mechanisms 5 through the cooperation of the other three sets of inclined grooves 301 and straight grooves 201, so that the three sets of radial contraction rods 509 will perform the radial contraction process synchronously.

[0072] During the radial retraction process of the radial retraction rod 509, the end of the radial retraction rod 509 is connected to the radial sliding plate 501 of the chamfering mechanism 5 in a movable limit connection, and the radial sliding plate 501 will also retract radially at the same time.

[0073] During the retraction and movement of the radial sliding plate 501, one side of the radial sliding plate 501 slides relative to the second fixed guide rod 507, and at the same time, it compresses the spring frame 508 located outside the second fixed guide rod 507. Since the bottom of the spring frame 508 is fixed to the telescopic frame 512 at this time, and the clamping roller 513 is movably connected to one side of the telescopic frame 512, that is to say, the three sets of clamping rollers 513 of the three sets of chamfering mechanisms 5 will first contact the outer wall of the pipe 6, and under the compression of the spring frame 508, the three sets of clamping rollers 513 will form a certain auxiliary clamping force on the outer wall of the pipe 6.

[0074] As the drive ring 3 continues to rotate radially, the saw blades 403 of the three sets of cutting mechanisms 4 gradually cut into the inner wall of the pipe 6. Similarly, at this time, the other side of the radial sliding plate 501 slides along the first fixed guide rod 502. At this time, the spring frame 508 on the outside of the first fixed guide rod 502 is compressed. The bottom of this set of spring frames 508 is fixedly connected to the bracket 503. The bracket 503 will drive the chamfering knife 505 to retract radially through the arc-shaped guide rail 504, so that the tip of the chamfering knife 505 contacts the outer wall of the pipe 6.

[0075] At this time, the ring-cutting motor module 9 installed on one side of the inner wall of the main body 1 starts, and its output gear meshes with the rotating gear ring 10. The rotating gear ring 10 is fixed on the outer wall of the movable cylinder 2, and then the movable cylinder 2 rotates relative to the main body 1.

[0076] During the rotation of the movable cylinder 2, the drive ring 3, the cutting mechanism 4, and the chamfering mechanism 5 will rotate in a ring relative to the main body 1 and the pipe 6. Specifically, the saw blades 403 of the multiple cutting mechanisms 4 will rotate as a whole while rotating on their own axis, which can perform a ring cutting operation on the pipe 6. Similarly, the chamfering blade 505 will also rotate in a ring relative to the pipe 6.

[0077] When the movable cylinder 2 rotates as a whole, the drive ring 3 will also rotate, driving the saw blades 403 of the three cutting mechanisms 4 to gradually extend into the inner wall of the pipe 6. The chamfering blades 505 of the three chamfering mechanisms 5 will gradually rotate in an inclined state to cut into the outer edge of the cut end face of the pipe 6. As the blade of the chamfering blade 505 gradually cuts in, the whole machine rotates at the same time, so that the chamfering operation on the outer edge of the cut pipe 6 can be completed simultaneously.

[0078] In summary, the present invention can simultaneously complete the flattening and chamfering of the pipe end face in a single clamping and positioning, eliminating the need for post-cutting transfer, secondary clamping, and repeated positioning, thus significantly shortening the processing flow, reducing the labor intensity of operators, and meeting the production needs of large-volume, continuous pipe processing. The overall operating efficiency is significantly improved compared with the prior art.

[0079] The cutting mechanism 4 and the chamfering mechanism 5 adopt a coaxial synchronous drive design, and the pipe 6 only needs to be positioned once to complete the processing. This effectively avoids the positioning deviation caused by multiple clamping, and ensures that the coaxiality and perpendicularity of the pipe 6 cutting end face and the chamfer position are stable and controllable. The outer chamfer size of the pipe end is uniform and burr-free, which significantly improves the docking accuracy of the pipe 6, prevents problems such as assembly deviation and sealing failure, and improves the connection reliability and safety of the pipeline system.

[0080] This invention integrates the cutting and chamfering functions into a single mechanism, eliminating the need for separate cutting and chamfering machines, reducing equipment purchase costs, minimizing equipment footprint, and making it more suitable for various application scenarios such as small processing enterprises, workshop assembly lines, and on-site construction, resulting in higher equipment utilization and economy.

[0081] Employing a multi-set 403 saw blade synchronous ring cutting and synchronous chamfering structure, the cutting process is stable and the force is even, enabling high-speed cutting of pipes without burrs or deformation. At the same time, it removes burrs and sharp edges from the pipe ends in real time, resulting in a high degree of pipe end smoothness. No secondary grinding is required, further simplifying the post-processing procedures.

[0082] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A burr-free high-speed cutting and end chamfering mechanism for pipes, comprising a main body (1), a rotary drive assembly, a radial adjustment assembly, a cutting mechanism (4), a chamfering mechanism (5), and a pipe (6), characterized in that: The rotary drive assembly is installed inside the main body (1) and is used to drive the radial adjustment assembly, the cutting mechanism (4) and the chamfering mechanism (5) to synchronously revolve around the pipe (6); The radial adjustment component is connected to the rotary drive component for driving the cutting mechanism (4) and the chamfering mechanism (5) to feed and retract synchronously along the radial direction of the pipe (6); The cutting mechanism (4) can perform high-speed circumferential cutting on the pipe (6) during radial feeding, achieving burr-free cutting; The chamfering mechanism (5) and the cutting mechanism (4) operate coaxially and synchronously, and can simultaneously chamfer the end face of the pipe during the pipe cutting process (6); The chamfering mechanism (5) is also provided with an auxiliary clamping structure, which is used to center and clamp the outer wall of the pipe (6) before processing to ensure the coaxiality of the processing.

2. A tube stock burr free high speed cutting and port chamfering mechanism as claimed in claim 1 wherein: The rotary drive assembly includes a ring-cutting motor module (9), a rotary gear ring (10), and a movable cylinder (2); The circumferential cutting motor module (9) is fixed to the inner wall of the main body (1), the rotating gear ring (10) is fixed to the outer wall of the movable cylinder (2) and meshes with the gear at the output end of the circumferential cutting motor module (9), and the movable cylinder (2) rotates with the main body (1) through the movable support roller (8).

3. A tube stock burr-free high speed cutting and port chamfering mechanism as claimed in claim 2 wherein: The radial adjustment assembly includes a drive ring (3), a drive gear ring (302), and a radial adjustment motor module (303). The drive ring (3) is sleeved inside the movable cylinder (2). The drive ring (3) has multiple sets of inclined grooves (301), and the movable cylinder (2) has multiple sets of straight grooves (201) corresponding to the inclined grooves (301). The radial adjustment motor module (303) drives the drive ring (3) to rotate relative to the movable cylinder (2) through the drive gear ring (302).

4. The burr-free high-speed cutting and end chamfering mechanism for pipes according to claim 3, characterized in that: The cutting mechanism (4) includes a cutting motor (401), a transmission frame (402), a saw blade (403), and a clamping plate (404). The transmission frame (402) is provided with a first bearing (405), which is slidably engaged with the straight groove (201) and the inclined groove (301) respectively. The cutting motor (401) drives the saw blade (403) to rotate and feed radially along the pipe (6) through the transmission frame (402). The clamping plate (404) is fixedly connected to the transmission frame (402) by bolts, which serves to clamp and fix the saw blade (403).

5. The burr-free high-speed cutting and end chamfering mechanism for pipes according to claim 3, characterized in that: The chamfering mechanism (5) includes a radial sliding plate (501), a bracket (503), a chamfering blade (505), and a radial retraction rod (509). The radial shrinking rod (509) is provided with a second bearing (510), which is slidably engaged with the straight groove (201) and the inclined groove (301) respectively, so that the radial sliding plate (501) moves radially synchronously with the radial shrinking rod (509).

6. The burr-free high-speed cutting and end chamfering mechanism for pipes according to claim 5, characterized in that: The chamfering mechanism (5) also includes a first fixed guide rod (502) and a slide rod (511); The bracket (503) passes through the movable cylinder (2) and is slidably connected to it through two sets of sliding rods (511) fixed at both ends. A spring frame (508) located outside the first fixed guide rod (502) is fixed between the bracket (503) and the radial sliding plate (501). An arc-shaped guide rail (504) and a chamfering angle adjustment motor module (506) are provided between the chamfering blade (505) and the bracket (503). The chamfering angle adjustment motor module (506) is used to adjust the tilt angle of the chamfering blade (505), and the adjustment range is 15°-30°.

7. The burr-free high-speed cutting and end chamfering mechanism for pipes according to claim 5, characterized in that: The auxiliary clamping structure includes a telescopic frame (512), a clamping roller (513), a spring frame (508), and a second fixed guide rod (507). The second fixed guide rod (507) is fixed to the inner wall of the movable cylinder (2) and passes through the radial sliding plate (501), and the radial sliding plate (501) and the second fixed guide rod (507) are slidably connected; The telescopic frame (512) and the radial sliding plate (501) are elastically connected by a spring frame (508) located outside the second fixed guide rod (507), which is used to center and clamp the pipe (6) before chamfering.

8. The burr-free high-speed cutting and end chamfering mechanism for pipes according to claim 4, characterized in that: The movable cylinder (2) is provided with an mounting plate (203) and a guide rail (202). The guide rail (202) is slidably connected to a sliding frame (406) fixed on the outside of the cutting motor (401), which plays a guiding role for the cutting motor (401). The mounting plate (203) is used to install the radial adjustment motor module (303) and serves to fix the radial adjustment motor module (303).

9. The burr-free high-speed cutting and end chamfering mechanism for pipes according to claim 1, characterized in that: Both sides of the main body (1) are provided with end caps (11). The inner sides of the two sets of end caps (11) serve to limit the axial movement of the movable cylinder (2) without affecting the radial rotation of the movable cylinder (2). The main body (1) is provided with a control box (12) on the outside. The control box (12) is used to control the start and stop and action parameters of the rotary drive assembly, radial adjustment assembly, cutting mechanism (4) and chamfering mechanism (5).

10. The burr-free high-speed cutting and end chamfering mechanism for pipes according to claim 1, characterized in that: An electric slip ring module (7) is provided between the outer wall of the movable cylinder (2) and the inner wall of the main body (1). The movable ring of the electric slip ring module (7) is fixed on the outer wall of the movable cylinder (2), and the conductive ring is fixed on the inner wall of the main body (1). The top of the conductive ring is fixed with a conductive interface extending to the outside of the main body (1) for providing power supply and signal transmission to the electrical components in the rotating state.

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