Pipe cutting, grinding and polishing integrated device
By designing an integrated device for pipe cutting, grinding and polishing, the problems of cutting position deviation and complicated procedures in metal pipe processing were solved, automated integrated processing was achieved, and efficiency and quality were improved.
Patent Information
- Application Number
- CN202510892867.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2025-09-09
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In metal pipe processing, the cutting and grinding and polishing processes are cumbersome, and the cutting position is prone to deviation, requiring manual positioning, resulting in low efficiency.
A pipe cutting, grinding and polishing integrated device is designed, which includes a frame, a pipe steering device, a cutting disc assembly and a grinding and polishing assembly. The automatic cutting, steering and grinding and polishing of the pipe are achieved through the steering motor, the push cylinder and the telescopic cylinder. The position of the pipe is kept stable by the limit ring and the arc-shaped support plate.
It realizes the automated integration of pipe cutting and grinding and polishing, reduces the operation steps, improves the processing efficiency and quality, and prevents the displacement of the pipe during the cutting process.
Smart Images
Figure CN120606261A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of pipe processing equipment, and in particular to an integrated device for pipe cutting, grinding and polishing. Background Art
[0002] Before processing metal doors and windows, metal pipes of appropriate sizes must be prepared and then welded to the frames. During the processing of the metal pipes, cutting and grinding and polishing are the processes that are carried out in sequence. During the pipe cutting process, the pipes are generally pressed manually, which makes the pipes easily shifted during cutting, resulting in deviations in the cutting position. After cutting, the cut pipes need to be removed, clamped and positioned on the grinding and polishing machine, and then manually ground and polished, making the entire process relatively cumbersome. Summary of the Invention
[0003] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide an integrated device for pipe cutting, grinding and polishing, which has the advantages of saving operating steps and improving the efficiency of pipe processing.
[0004] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides an integrated device for pipe cutting, grinding and polishing, comprising: A frame, wherein a processing groove is provided on the top surface of the frame; The pipe steering device is arranged in the processing tank; cutting disc assembly; The grinding and polishing assembly, the cutting disc assembly and the grinding and polishing assembly are respectively arranged at two opposite ends of the pipe steering device; The pipe steering device includes a steering motor vertically arranged on the bottom surface of the processing tank, and an insert is horizontally arranged on the output shaft of the steering motor; The cutting disc assembly includes a push cylinder arranged outside the side wall of the frame, a cutting disc is arranged on the piston rod of the push cylinder, and a disc groove corresponding to the position of the cutting disc is arranged on the side wall of the frame; The grinding and polishing assembly comprises a telescopic cylinder which is arranged on the side wall of the frame. A fixed plate is arranged on the piston rod of the telescopic cylinder. A grinding roller and a polishing roller are arranged in parallel in sequence on the outside of the fixed plate.
[0005] Preferably, a cannula seat is provided on the output shaft of the steering motor, and the cannula is horizontally arranged on the cannula seat. The external coaxial movable sleeve of the cannula is provided with a limiting ring, which is convenient for being sleeved to the outside of the cannula before the pipe is cut, so that the position remains stable when the pipe is cut; the limiting ring can limit the length of the pipe sleeved to the outside of the cannula according to the cutting needs.
[0006] Preferably, an externally threaded rod and a smooth rod are coaxially arranged at both ends of the cannula in the length direction. The externally threaded rod is threadedly connected to the cannula seat, and the limit ring is movably sleeved on the outside of the smooth rod. It can be sleeved on the outside of the smooth rod before the pipe is cut, and the externally threaded rod can be rotated to adjust the position, which is convenient for adjusting the position of the smooth rod when the pipe is cut.
[0007] Preferably, the pushing cylinder is provided with a connecting seat, which includes: A limiting jacket, which is fixed on the side wall of the frame; The limiting slide bar contacts the top surface of the supporting rod vertically arranged on the pushing cylinder, and the limiting slide bar moves away from the pushing cylinder end and penetrates and is arranged in the limiting sleeve; A rotating rod, the rotating rod is rotatably arranged at the end of the limit slide bar away from the limit sleeve; There are multiple arc-shaped support plates, and multiple arc-shaped support plates are arranged on the side wall of the rotating rod away from the end of the limiting slide rod, and the arc-shaped opening of the arc-shaped support plate is facing the direction of the pushing cylinder. The arc-shaped support plate can easily play a supporting role when cutting the pipe, and can prevent the pipe from being positioned.
[0008] Preferably, there are two arc-shaped support plates, and the two arc-shaped support plates are arranged in parallel and spaced apart on the side wall of the rotating rod away from the connecting seat end. The position of the cutting disk corresponds to the gap position between the two arc-shaped support plates, so that the cutting disk can be located between the two arc-shaped support plates when cutting the pipe, so that the cutting disk will not interfere with the arc-shaped support plates during the cutting operation.
[0009] Preferably, the length direction of the limiting slide rod and the length direction of the limiting sleeve are the same as the extension and contraction direction of the push cylinder piston rod, so that the limiting slide rod can be adjusted in position and the arc-shaped support plate can be in contact with the outer wall of the pipe.
[0010] Preferably, two adjusting cylinders corresponding to the arc-shaped support plates are embedded in the side wall of the rotating rod away from the end of the limiting slide rod. The arc-shaped support plates are respectively arranged on the piston rods of the adjusting cylinders at corresponding positions. The adjusting cylinders can be rotated to the outer wall position corresponding to the pipe by rotating the rotating rod, so that the arc-shaped support plates can be used to support the pipe during cutting.
[0011] Preferably, the polishing roller comprises: A polishing roller outer cylinder, which is arranged outside the fixed plate; A plurality of polishing roller bodies are provided, and the plurality of polishing roller bodies are evenly distributed along the circumference of the inner circumference of the outer cylinder of the polishing roller, and the polishing roller bodies are rotatably provided on the inner circumference of the outer cylinder of the polishing roller, and the axis of the polishing roller body is parallel to the axis of the outer cylinder of the polishing roller, and a driven gear 1 is rotatably provided on each polishing roller body; Driving motor 1 is arranged on the fixed plate, and a driving gear 1 is arranged on the output shaft of driving motor 1. Driving gear 1 is engaged with driven gear 1, and the pipe can be passed through the outer cylinder of the polishing roller, so that the outer wall of the pipe can be polished by the polishing roller body.
[0012] Preferably, the grinding roller comprises: The grinding roller outer cylinder is hinged to the outside of the polishing roller outer cylinder away from the fixed plate, and the outer diameter of the grinding roller outer cylinder is the same as the outer diameter of the polishing roller outer cylinder; A plurality of grinding roller bodies are provided, and the plurality of grinding roller bodies are evenly distributed along the circumference of the inner circumference of the outer cylinder of the grinding roller. The grinding roller bodies are rotatably provided on the inner circumference of the outer cylinder of the grinding roller, and the axis of the grinding roller body is parallel to the axis of the outer cylinder of the grinding roller. A driven gear 2 is rotatably provided on each grinding roller body; The second drive motor is arranged inside the outer cylinder of the grinding roller close to the end of the outer cylinder of the polishing roller. The output shaft of the second drive motor is provided with a second driving gear, which is meshed with the second driven gear. The sliding sleeve is slidably mounted on the outside of the outer cylinder of the grinding roller, and the pipe can be passed through the outer cylinder of the grinding roller, so that the outer wall of the pipe can be ground through the grinding roller body.
[0013] Preferably, the polishing roller outer cylinder, the output shaft of the driving motor 1, the grinding roller outer cylinder, the piston rod of the telescopic cylinder, the output shaft of the driving motor 2 and the sliding sleeve are coaxial, which is conducive to maintaining a stable position during through-polishing and grinding.
[0014] The beneficial effects of the present invention are: 1. After the pipe is cut by the cutting disc assembly, it can be rotated 180 degrees by the pipe steering device, and then the grinding and polishing operations can be completed respectively by the grinding roller and the polishing roller. The pipe cutting, grinding and polishing operations can be completed without positioning the pipe, which saves operating steps and improves production efficiency and flexibility.
[0015] 2. The setting of the arc-shaped support plate can play a supporting role when the cutting disc cuts the pipe, preventing the pipe from moving and improving the quality of the pipe after cutting; and when the cutting disc is pushed by the pushing cylinder, the cutting disc can be located between the two arc-shaped support plates, so that the cutting disc will not interfere with the arc-shaped support plates during the cutting operation, and the cutting disc can cut the pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0017] Figure 1 This is a schematic structural diagram of an integrated device for pipe cutting, grinding and polishing provided in an embodiment of the present invention.
[0018] Figure 2 A schematic structural diagram of a pipe steering device of an integrated pipe cutting, grinding and polishing device provided in an embodiment of the present invention.
[0019] Figure 3 A schematic structural diagram of a cutting disc assembly of an integrated pipe cutting, grinding and polishing device provided in an embodiment of the present invention.
[0020] Figure 4 A schematic diagram of the position of a cutting disc assembly of an integrated pipe cutting, grinding and polishing device provided in an embodiment of the present invention.
[0021] Figure 5 A schematic structural diagram of a grinding and polishing assembly of an integrated pipe cutting, grinding and polishing device provided in an embodiment of the present invention.
[0022] Figure 6 A schematic diagram of the polishing roller structure of an integrated pipe cutting, grinding and polishing device provided in an embodiment of the present invention.
[0023] Figure 7 A schematic diagram of the grinding roller structure of an integrated pipe cutting, grinding and polishing device provided in an embodiment of the present invention.
[0024] Figure 8 This is a structural schematic diagram of a pipe cutting, grinding and polishing integrated device provided by an embodiment of the present invention when the sliding sleeve is located between the grinding roller outer cylinder and the polishing roller outer cylinder.
[0025] Explanation of reference numerals: 1, frame; 11, processing groove; 2, pipe steering device; 21, steering motor; 22, intubation; 221, external threaded rod; 222, polished rod; 23, intubation seat; 24, limiting ring; 3, cutting disc assembly; 31, pushing cylinder; 311, supporting rod; 32, cutting disc; 33, disc groove; 34, connecting seat; 341, limiting outer sleeve; 342, limiting slide rod; 343, rotating rod; 344, arc-shaped supporting plate; 345 , adjusting cylinder; 4. Grinding and polishing assembly; 41. Telescopic cylinder; 42. Fixed plate; 43. Grinding roller; 431. Grinding roller outer cylinder; 432. Grinding roller body; 4321. Driven gear two; 433. Driving motor two; 4331. Driving gear two; 434. Sliding sleeve; 44. Polishing roller; 441. Polishing roller outer cylinder; 442. Polishing roller body; 4421. Driven gear one; 443. Driving motor one; 4431. Driving gear one. DETAILED DESCRIPTION
[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.
[0027] Example 1 like Figures 1 to 2 、 Figure 5 As shown, the present invention provides an integrated device for pipe cutting, grinding and polishing, comprising a frame 1, a processing groove 11 being provided on the top surface of the frame 1; a pipe steering device 2 being provided in the processing groove 11; a cutting disc assembly 3 and a grinding and polishing assembly 4 being respectively provided at opposite ends of the pipe steering device 2; the pipe steering device 2 comprises a steering motor 21 vertically provided on the inner bottom surface of the processing groove 11, and a cannula 22 being horizontally provided on the output shaft of the steering motor 21; the cutting disc assembly 3 comprises a pushing cylinder 31 provided outside the side wall of the frame 1, a cutting disc 32 being provided on the piston rod of the pushing cylinder 31, and a disc groove 33 corresponding to the position of the cutting disc 32 being provided on the side wall of the frame 1; the grinding and polishing assembly 4 comprises a telescopic cylinder 41, the telescopic cylinder 41 being provided on the side wall of the frame 1, a fixed disc 42 being provided on the piston rod of the telescopic cylinder 41, and a grinding roller 43 and a polishing roller 44 being provided on the outside of the fixed disc 42 in sequence.
[0028] First, horizontally sleeve the pipe (a pipe with a circular cross-section) from the end away from the grinding and polishing component 4 to the outside of the insert tube 22; start the pushing cylinder 31 to push the cutting disc 32 through the disc groove 33 to move toward the direction close to the pipe (the end of the insert tube 22 away from the output shaft of the steering motor 21 is staggered from the position of the cutting disc 32, which can prevent the insert tube 22 and the cutting disc 32 from interfering with each other when cutting the pipe), so that the pipe can be cut by the cutting disc 32 (that is, the cut part of the pipe is sleeved on the outside of the insert tube 22); then start the steering motor 21 to drive the insert tube 22 and the pipe sleeved on the outside of the insert tube 22 to rotate 180 degrees at the same time. At this time, the pipe sleeved on the outside of the insert tube 22 is located near the end of the grinding and polishing component 4, and the telescopic cylinder 41 can push the grinding roller 43 and the polishing roller 44 to move in the direction close to the pipe sleeved on the outside of the insert tube 22, thereby completing the corresponding grinding and polishing operations.
[0029] Example 2 Based on the first embodiment, Figures 1 to 2 As shown, a cannula seat 23 is provided on the output shaft of the steering motor 21, and the cannula 22 is horizontally penetrated on the cannula seat 23, and the outer coaxial movable sleeve of the cannula 22 is provided with a limiting ring 24; the two ends of the cannula 22 in the length direction are coaxially provided with an external threaded rod portion 221 and a smooth rod portion 222, respectively, the external threaded rod portion 221 is threadedly connected to the cannula seat 23, and the limiting ring 24 is movably sleeved on the outside of the smooth rod portion 222.
[0030] The position of the limit ring 24 can be moved and adjusted on the outside of the cannula 22, so that after the pipe is put on the outside of the cannula 22 before cutting, the length of the pipe put on the outside of the cannula 22 can be limited according to the cutting needs; at the same time, the position of the external threaded rod 221 can be rotated and adjusted on the cannula seat 23, so that the position of the smooth rod 222 can be adjusted according to the needs of pipe cutting, which is beneficial to keep the position stable when the pipe is cut; after the pipe is cut, the steering motor 21 can be started to drive the cannula seat 23 to rotate 180 degrees. At this time, the pipe put on the outside of the cannula 22 is located near the end of the grinding and polishing component 4, which is convenient for completing the corresponding grinding and polishing operations through the grinding and polishing component 4.
[0031] Example 3 Based on the first embodiment, Figures 1 to 4As shown, a connecting seat 34 is provided on the pushing cylinder 31, and the connecting seat 34 includes a limiting sleeve 341, which is fixedly arranged on the side wall of the frame 1; the limiting slide 342 is in contact with the top surface of the supporting rod 311 vertically arranged on the pushing cylinder 31, and the limiting slide 342 is movable through the limiting sleeve 341 away from the end of the pushing cylinder 31; the rotating rod 343 is rotatably set on the limiting slide 342 away from the end of the limiting sleeve 341; a plurality of arc-shaped supporting plates 344 are provided, and the plurality of arc-shaped supporting plates 344 are arranged on the side wall of the rotating rod 343 away from the end of the limiting slide 342, and the arc-shaped opening of the arc-shaped supporting plate 344 faces The direction of the pushing cylinder 31; there are two arc-shaped supporting plates 344, and the two arc-shaped supporting plates 344 are arranged in parallel and spaced apart on the side wall of the rotating rod 343 away from the connecting seat 34, and the position of the cutting disk 32 corresponds to the gap position between the two arc-shaped supporting plates 344; the length direction of the limiting slide 342 and the length direction of the limiting sleeve 341 are the same as the extension and retraction direction of the piston rod of the pushing cylinder 31; two adjusting cylinders 345 corresponding to the arc-shaped supporting plates 344 are embedded in the side wall of the rotating rod 343 away from the limiting slide 342, and the arc-shaped supporting plates 344 are respectively arranged on the piston rods of the adjusting cylinders 345 at corresponding positions.
[0032] After the pipe is sleeved on the outside of the cannula 22, the position of the limiting slide 342 is adjusted by sliding in the limiting sleeve 341 (the limiting slide 342 can slide on the top surface of the support rod 311, so that the top surface of the support rod 311 can support the limiting slide 342), and at the same time, the rotating rod 343 is turned to rotate the arc support plate 344 in the direction away from the pushing cylinder 31. At this time, the pipe is located between the arc support plate 344 and the cutting disc 32; the adjusting cylinder 345 is started to drive the arc support plate 344 to move in the direction close to the pipe, so that the arc support plate The inner wall of the arc-shaped opening 344 contacts the outer wall of the pipe, and the pushing cylinder 31 can be started to push the cutting disc 32 to move toward the pipe. When the cutting disc 32 gradually contacts the pipe for cutting, the arc-shaped support plate 344 can play a supporting role when cutting the pipe, which can prevent the pipe from moving. At the same time, under the pushing action of the pushing cylinder 31, the cutting disc 32 can be located between the two arc-shaped support plates 344, so that the cutting disc 32 will not interfere with the arc-shaped support plates 344 during the cutting operation, and the cutting disc 32 can cut the pipe.
[0033] The outside of the limiting sleeve 341 can be threadedly connected with a fixing bolt, so that after sliding and adjusting the position of the limiting slide rod 342, the fixing bolt can be used to penetrate the limiting sleeve 341 and the limiting slide rod 342 to interfere with each other, thereby fixing the position between the limiting sleeve 341 and the limiting slide rod 342.
[0034] Example 4 Based on the first embodiment, Figure 1 、 Figures 5 to 8 As shown, the polishing roller 44 includes a polishing roller outer cylinder 441, which is arranged outside the fixed plate 42; a plurality of polishing roller bodies 442 are provided, and the plurality of polishing roller bodies 442 are uniformly distributed along the circumferential direction of the inner circumferential wall of the polishing roller outer cylinder 441, and the polishing roller bodies 442 are rotatably arranged on the inner circumferential wall of the polishing roller outer cylinder 441, and the axis of the polishing roller body 442 is parallel to the axis of the polishing roller outer cylinder 441, and each polishing roller body 442 is rotatably provided with a driven gear 4421; a driving motor 44 3 is set on the fixed plate 42, and the output shaft of the driving motor 443 is provided with a driving gear 4431, and the driving gear 4431 is meshed with the driven gear 4421; when the pipe is cut (cut off), the steering motor 21 is started to drive the insertion tube seat 23 to rotate 180 degrees. At this time, the pipe sleeved to the outside of the insertion tube 22 is located near the end of the grinding and polishing assembly 4; the grinding roller outer cylinder 431 is turned over outside the polishing roller outer cylinder 441. At this time, the axis of the grinding roller outer cylinder 431 is aligned with the polishing roller outer cylinder 44 1, and then slide the sliding sleeve 434 outside the grinding roller outer cylinder 431, so that the end of the grinding roller outer cylinder 431 and the polishing roller outer cylinder 441 close to each other are both located inside the grinding roller outer cylinder 431, which is conducive to maintaining a stable connection between the grinding roller outer cylinder 431 and the polishing roller outer cylinder 441, and facilitating the stable position when the telescopic cylinder 41 pushes the fixed plate 42, the grinding roller 43 and the polishing roller 44 at the same time; then start the telescopic cylinder 41 to push the fixed plate 42, the grinding roller 43 and the polishing roller 44 close to the pipe at the same time direction; at this time, the grinding roller outer cylinder 431 can be sleeved onto the outside of the pipe, and the driving motor 2 433 is started at the same time, and the driven gear 2 4321 is driven to rotate through the active gear 2 4331, so that each grinding roller body 432 can be driven to rotate at the same time, and the outer wall of the pipe can be polished when the grinding roller body 432 rotates (the number and diameter of the grinding roller bodies 432 can be set according to the diameter of the pipe, and the length of the grinding roller outer cylinder 431 and the length of the grinding roller body 432 are both greater than the length of the pipe).
[0035] The grinding roller 43 includes a grinding roller outer cylinder 431, which is hinged to the outside of the polishing roller outer cylinder 441 away from the fixed plate 42, and the outer diameter of the grinding roller outer cylinder 431 is the same as the outer diameter of the polishing roller outer cylinder 441; a plurality of grinding roller bodies 432 are provided, and the plurality of grinding roller bodies 432 are uniformly distributed along the circumferential direction of the inner circumferential wall of the grinding roller outer cylinder 431, and the grinding roller bodies 432 are rotatably provided on the inner circumferential wall of the grinding roller outer cylinder 431, and the axis of the grinding roller body 432 The center line is parallel to the axis line of the grinding roller outer cylinder 431. A driven gear 2 4321 is rotatably provided on each grinding roller body 432. The driving motor 2 433 is provided inside the grinding roller outer cylinder 431 near the end of the polishing roller outer cylinder 441. The output shaft of the driving motor 2 433 is provided with a driving gear 2 4331. The driving gear 2 4331 is meshed with the driven gear 2 4321. The sliding sleeve 434 is slidably provided on the outer surface of the grinding roller outer cylinder 431. After the polishing operation on the pipe is completed, the polishing roller outer cylinder 431 can be turned over on the outside of the polishing roller outer cylinder 441 (at this time, the positions of the polishing roller outer cylinder 431 and the polishing roller outer cylinder 441 are distributed up and down, and the axis of the polishing roller outer cylinder 431 is parallel to the axis of the polishing roller outer cylinder 441), and the telescopic cylinder 41 is started to push the fixed plate 42, the polishing roller 43 and the polishing roller 44 to move simultaneously in the direction close to the pipe; at this time, the polishing roller outer cylinder 441 can be sleeved to the outside of the pipe, and the driving motor 443 is started at the same time, and the driven gear 4421 is driven to rotate through the driving gear 4431, so that each polishing roller body 442 can be driven to rotate at the same time. When the polishing roller body 442 rotates, the outer circumferential wall of the pipe can be polished (the number and diameter of the polishing roller body 442 can be set according to the diameter of the pipe, and the length of the polishing roller body 442 and the length of the polishing roller outer cylinder 441 are both greater than the length of the pipe).
[0036] The polishing roller outer cylinder 441, the output shaft of the driving motor 1 443, the grinding roller outer cylinder 431, the piston rod of the telescopic cylinder 41, the output shaft of the driving motor 2 433 and the sliding sleeve 434 are coaxial, which is conducive to stable rotation during the through-polishing and grinding operations, thereby effectively improving the quality of the grinding and polishing of the pipe.
[0037] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.
Claims
1. An integrated device for pipe cutting, grinding and polishing, characterized in that: include: A machine frame (1), wherein a processing groove (11) is provided on the top surface of the machine frame (1); A pipe steering device (2), the pipe steering device (2) is arranged in the processing tank (11); Cutting disc assembly (3); The grinding and polishing assembly (4), the cutting disc assembly (3) and the grinding and polishing assembly (4) are respectively arranged at two opposite ends of the pipe steering device (2); The pipe steering device (2) includes a steering motor (21) vertically arranged on the inner bottom surface of the processing tank (11), and an insert (22) is horizontally arranged on the output shaft of the steering motor (21); The cutting disc assembly (3) includes a pushing cylinder (31) arranged outside the side wall of the frame (1), a cutting disc (32) is arranged on the piston rod of the pushing cylinder (31), and a disc groove (33) corresponding to the position of the cutting disc (32) is arranged on the side wall of the frame (1); The grinding and polishing assembly (4) comprises a telescopic cylinder (41), which is arranged on the side wall of the frame (1). A fixed disk (42) is arranged on the piston rod of the telescopic cylinder (41), and a grinding roller (43) and a polishing roller (44) are arranged in parallel in sequence on the outside of the fixed disk (42).
2. The integrated pipe cutting, grinding and polishing device according to claim 1, characterized in that: A cannula seat (23) is provided on the output shaft of the steering motor (21), the cannula (22) is horizontally penetrated and arranged on the cannula seat (23), and a limiting ring (24) is provided on the outer coaxial movable sleeve of the cannula (22).
3. The integrated pipe cutting, grinding and polishing device according to claim 2, characterized in that: An external threaded rod portion (221) and a smooth rod portion (222) are coaxially arranged at both ends of the length direction of the cannula (22), the external threaded rod portion (221) is threadedly connected to the cannula seat (23), and the limiting ring (24) is movably sleeved on the outside of the smooth rod portion (222).
4. The integrated pipe cutting, grinding and polishing device according to claim 1, characterized in that: A connecting seat (34) is provided on the pushing cylinder (31), and the connecting seat (34) includes: A limiting jacket (341), the limiting jacket (341) is fixedly arranged on the side wall of the frame (1); A limiting slide bar (342) is in contact with the top surface of a support bar (311) vertically arranged on the push cylinder (31), and the limiting slide bar (342) is movably arranged in the limiting sleeve (341) away from the push cylinder (31); A rotating rod (343) is rotatably arranged at an end of the limiting slide bar (342) away from the limiting sleeve (341); A plurality of arc-shaped supporting plates (344) are provided, and the plurality of arc-shaped supporting plates (344) are provided on the side wall of the rotating rod (343) away from the end of the limiting slide rod (342), and the arc-shaped opening of the arc-shaped supporting plate (344) faces the direction of the pushing cylinder (31).
5. The integrated pipe cutting, grinding and polishing device according to claim 4, characterized in that: Two arc-shaped supporting plates (344) are provided, and the two arc-shaped supporting plates (344) are arranged in parallel and spaced apart on the side wall of the rotating rod (343) away from the connecting seat (34), and the position of the cutting disc (32) corresponds to the gap position between the two arc-shaped supporting plates (344).
6. The integrated pipe cutting, grinding and polishing device according to claim 5, characterized in that: The length direction of the limiting slide rod (342) and the length direction of the limiting sleeve (341) are the same as the extension and contraction direction of the piston rod of the pushing cylinder (31).
7. The integrated pipe cutting, grinding and polishing device according to claim 5, characterized in that: Two regulating cylinders (345) corresponding to the arc-shaped supporting plates (344) are embedded in the side wall of the rotating rod (343) away from the limiting sliding rod (342), and the arc-shaped supporting plates (344) are respectively arranged on the piston rods of the regulating cylinders (345) at corresponding positions.
8. The integrated pipe cutting, grinding and polishing device according to claim 1, characterized in that: The polishing roller (44) comprises: A polishing roller outer cylinder (441), the polishing roller outer cylinder (441) is arranged outside the fixed disk (42); A polishing roller body (442), wherein a plurality of polishing roller bodies (442) are provided, and the plurality of polishing roller bodies (442) are uniformly distributed along the inner peripheral wall of the polishing roller outer cylinder (441), and the polishing roller bodies (442) are rotatably provided on the inner peripheral wall of the polishing roller outer cylinder (441), and the axis of the polishing roller body (442) is parallel to the axis of the polishing roller outer cylinder (441), and each polishing roller body (442) is rotatably provided with a driven gear (4421); A driving motor (443) is provided on the fixed disk (42). A driving gear (4431) is provided on the output shaft of the driving motor (443). The driving gear (4431) is meshed with the driven gear (4421).
9. The integrated pipe cutting, grinding and polishing device according to claim 8, characterized in that: The grinding roller (43) comprises: A grinding roller outer cylinder (431), the grinding roller outer cylinder (431) is hinged to the outside of the polishing roller outer cylinder (441) away from the fixed plate (42), and the outer diameter of the grinding roller outer cylinder (431) is the same as the outer diameter of the polishing roller outer cylinder (441); A grinding roller body (432), wherein a plurality of grinding roller bodies (432) are provided, and the plurality of grinding roller bodies (432) are uniformly distributed along the circumference of the inner peripheral wall of the grinding roller outer cylinder (431), and the grinding roller bodies (432) are rotatably provided on the inner peripheral wall of the grinding roller outer cylinder (431), and the axis of the grinding roller body (432) is parallel to the axis of the grinding roller outer cylinder (431), and each grinding roller body (432) is rotatably provided with a driven gear 2 (4321); A second driving motor (433) is provided inside the grinding roller outer cylinder (431) near the end of the polishing roller outer cylinder (441), and a second driving gear (4331) is provided on the output shaft of the second driving motor (433), and the second driving gear (4331) is meshed with the second driven gear (4321); The sliding sleeve (434) is slidably mounted on the outside of the grinding roller outer cylinder (431).
10. The integrated pipe cutting, grinding and polishing device according to claim 9, characterized in that: The polishing roller outer cylinder (441), the output shaft of the first drive motor (443), the grinding roller outer cylinder (431), the piston rod of the telescopic cylinder (41), the output shaft of the second drive motor (433) and the sliding sleeve (434) are coaxial.