Steel pipe sleeve cutting machine convenient to adjust and cutting method

Abstract

The invention belongs to the technical field of steel pipe sleeves, and particularly discloses a steel pipe sleeve cutting machine convenient to adjust and a cutting method.The steel pipe sleeve cutting machine comprises a main body frame, a cutting saw device is arranged at the front end of the main body frame, a supporting frame is installed on the rear portion of the main body frame through bolts, and a sliding supporting table is arranged in the main body frame; the sliding supporting table comprises a gear, a ratchet mechanism is installed in the gear, a chassis is arranged above the gear, a moving square block is fixedly installed on the top of the chassis, a driving disc is arranged above the moving square block, a driving column is rotatably installed in the moving square block, and positioning mechanisms are arranged on the two sides of the driving disc. The upper end face and the lower end face of the driving column are matched with the driving disc and the ratchet mechanism correspondingly, the steel pipe sleeve can be reversed in the process that the sliding supporting table moves towards the rear portion of the main body frame, a large number of operators are not needed for auxiliary operation, and the time and the labor cost of manual operation are reduced.

Description

Technical Field

[0001] The invention belongs to the field of steel pipe sleeves, and specifically discloses an easily adjustable steel pipe sleeve cutting machine and a cutting method. Background Art

[0002] The steel pipe sleeve is a metal sleeve used to fix the outside of the pipe, mainly used to prevent the heat exchange between the pipe contents and the external environment. In the daily use of the steel pipe sleeve, due to the long length of the steel sleeve, the steel pipe sleeve needs to be cut.

[0003] The existing easy-to-adjust steel pipe sleeve cutting machine requires workers to manually remove the steel pipe sleeve after cutting one end of the steel pipe sleeve, and then re-install the steel pipe sleeve, which requires a large number of operators to perform auxiliary operations, increasing the time and labor costs of manual operations. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose an easily adjustable steel pipe sleeve cutting machine and cutting method, so as to solve the problem that in the prior art, after cutting one end of the steel pipe sleeve, the staff manually removes the steel pipe sleeve and then re-installs the steel pipe sleeve, which requires a large number of operators to perform auxiliary operations, increasing the time and labor cost of manual operation.

[0005] To achieve the above objectives, the present invention provides an easily adjustable steel pipe sleeve cutting machine, comprising a main body frame, a cutting saw device is arranged at the front end of the main body frame, a support frame is installed at the rear of the main body frame by bolts, a cylinder is arranged inside the support frame, a sliding support is arranged inside the main body frame, the sliding support comprises a gear, a ratchet mechanism is installed inside the gear, a chassis is arranged above the gear, a moving block is fixedly installed on the top of the chassis, a driving disk is arranged above the moving block, a driving column is rotatably installed inside the moving block, the upper and lower end surfaces of the driving column respectively cooperate with the driving disk and the ratchet mechanism, positioning mechanisms are arranged on both sides of the driving disk, a steel pipe sleeve is arranged above the driving disk, the positioning mechanism cooperates with the steel pipe sleeve, and the output end of the cylinder is connected to the moving block.

[0006] In the above technical solution, preferably, a rack is provided on the inner wall of the main frame, the gear is meshed with the rack, the ratchet mechanism includes a ratchet, the ratchet is installed inside the gear, the inner wall of the gear is provided with a first contraction groove, a limiting groove is provided on the inner wall of the first contraction groove, a first spring is provided inside the first contraction groove, an extension rod is installed on the end of the first spring, a limiting plate is fixedly provided on the middle part of the extension rod, the end of the limiting plate is movably clamped in the limiting groove, the other end of the extension rod cooperates with the ratchet, and the bottom of the driving column is fixedly connected to the ratchet.

[0007] In the above technical solution, preferably, two first positioning plates are symmetrically installed on the inner wall of the main frame, a sliding groove is provided on the surface of the first positioning plate, sliders are fixedly provided on both sides of the moving block, and the sliders are slidably installed in the sliding grooves, and two limiting holes are symmetrically provided on the inner wall of the moving block, and two recovery grooves are symmetrically provided on the surface of the driving column inside the moving block, and a third spring is provided inside the recovery groove, and a positioning semicircular block is provided at the end of the third spring, and the two positioning semicircular blocks correspond to the two limiting holes.

[0008] In the above technical solution, preferably, a second positioning plate is fixedly provided on the top of the first positioning plate, a guide groove is provided on the surface of the second positioning plate, the guide groove is provided as a straight groove at one end close to the cutting saw device, and the guide groove is provided as an inclined groove at one end away from the cutting saw device, the positioning mechanism includes an operating groove, the operating groove is provided at the end of the driving disk, a spring groove is provided on the inner wall of the operating groove, a second spring is provided inside the spring groove, a T-shaped column is movably installed inside the operating groove, the end of the second spring is connected to the T-shaped column, the other end of the T-shaped column is slidably provided in the guide groove, the two ends of the T-shaped column close to the second spring are connected with a connecting rod through a rotating shaft, a light rod is provided inside the operating groove and above the T-shaped column, two sliding plates are symmetrically sleeved on the surface of the light rod, the other end of the connecting rod is connected to the bottom of the sliding plate through a rotating shaft, a long plate is fixedly provided on the top of the sliding plate, and adjacent surfaces of the two long plates are connected with a clamping plate by bolts, a wing ring is provided at the middle end of the steel pipe sleeve, and the clamping plate corresponds to the steel pipe sleeve and the wing ring.

[0009] In the above technical solution, preferably, the front and rear end surfaces of the upper surface of the driving disk are both provided with positioning holes, and the surface of the driving disk is provided with a bracket, and the bottom of the bracket is inserted into the positioning hole.

[0010] In the above technical solution, preferably, the surface of the steel pipe sleeve to be cut protrudes from the main frame, and a clamping mechanism is provided on the working table surface of the cutting saw device.

[0011] A steel pipe sleeve cutting machine and cutting method that is easy to adjust, the method steps are as follows: S1. First, the staff installs a clamping plate corresponding to the steel pipe sleeve and the wing ring on the surface of the long board, and then places the steel pipe sleeve on the top of the driving disk. The bracket on the surface of the driving disk supports the steel pipe sleeve, and the wing ring is clamped between the two clamping plates; S2. The moving block is pushed by the cylinder to move toward the front end of the main frame. In the process of the sliding support moving toward the front of the main frame, under the action of the ratchet mechanism and the positioning semicircular block, the ratchet will not rotate, and the driving column will not rotate. At the same time, the T-shaped column will move from the inclined groove to the straight groove. When the T-shaped column is in the straight groove, the straight groove has an extrusion effect on the T-shaped column in the direction of the driving disk. At this time, the T-shaped column will move toward the middle end of the driving disk. Under the action of the connecting rod, the two sliding plates will move toward the middle end of the light rod. At this time, the positioning mechanism has a supporting and clamping effect on the steel pipe sleeve and the wing ring. After the surface of the steel pipe sleeve to be cut protrudes from the main frame, the clamping mechanism on the surface of the working table of the cutting saw device has a clamping and positioning effect on the end of the steel pipe sleeve, thereby realizing the cutting of the steel pipe sleeve; S3. The moving block is driven by the cylinder to move toward the rear of the main frame, and the first spring is used to make the end of the extension rod contact the ratchet. When the sliding support moves toward the rear of the main frame, the extension rod will be inserted into the tooth groove of the ratchet to push the ratchet to rotate. When the ratchet rotates, the driving column will also rotate. After the sliding support moves toward the rear of the main frame, the driving column will rotate 180°. At the same time, the positioning semicircular block will be squeezed with the surface of the limiting hole, and under the action of the squeezing force, the positioning semicircular block will shrink into the recovery groove, the driving column will rotate smoothly, and the driving column will drive the driving disk to rotate. At this time, the T-shaped column will disengage from the guide groove, and the elastic force of the second spring will push the T-shaped column to the outside of the driving disk. Under the action of the connecting rod, the two sliding plates will move to the side of the light rod to realize the reversing operation of the steel pipe sleeve.

[0012] Compared with the prior art, the present invention has the following beneficial effects: Through the positioning mechanism, the steel pipe sleeve can be fixed on the surface of the driving disk, and through the upper and lower end surfaces of the driving column respectively cooperating with the driving disk and the ratchet mechanism, the steel pipe sleeve can be reversed during the movement of the sliding support toward the rear of the main frame, thereby facilitating the cutting work at both ends of the steel pipe sleeve. When cutting the other end of the steel sleeve, there is no need for manual disassembly by the staff, and no need for a large number of operators to perform auxiliary operations, which reduces the time and labor costs of manual operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the main frame structure of the present invention; Figure 3 It is a schematic diagram of the structure of the sliding support platform of the present invention; Figure 4 It is a schematic diagram of the internal structure of the main frame of the present invention; Figure 5 It is a schematic diagram of the main frame structure viewed from above of the present invention; Figure 6 For the present invention Figure 4The enlarged view of point A in the middle; Figure 7 For the present invention Figure 5 The enlarged view of point B in the middle; Figure 8 It is a schematic diagram of the internal structure of the mobile block of the present invention; Fig. 9 It is a schematic diagram of the ratchet mechanism structure of the present invention.

[0014] In the figure: 1. cutting saw device; 2. main frame; 3. support frame; 4. cylinder; 5. sliding support; 6. gear; 7. rack; 8. ratchet; 9. first contraction groove; 10. first spring; 11. extension rod; 12. limit groove; 13. limit plate; 14. chassis; 15. moving block; 16. slider; 17. first positioning plate; 18. slide groove; 19. driving column; 20. driving disk; 21. positioning mechanism; 22. second positioning plate; 23. guide groove; 24. T-shaped column; 25. light rod; 26. connecting rod; 27. sliding plate; 28. spring groove; 29. ​​second spring; 30. long plate; 31. clamping plate; 32. steel pipe sleeve; 33. wing ring; 34. limit hole; 35. third spring; 36. recovery groove; 37. positioning semicircular block; 38. clamping mechanism. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] like Figure 1 - Fig. 9The steel pipe sleeve cutting machine shown in the figure is easy to adjust, including a main frame 2, a cutting saw device 1 is arranged at the front end of the main frame 2, a support frame 3 is installed at the rear of the main frame 2 by bolts, a cylinder 4 is arranged inside the support frame 3, a sliding support 5 is arranged inside the main frame 2, the sliding support 5 includes a gear 6, a ratchet mechanism is installed inside the gear 6, a chassis 14 is arranged above the gear 6, a moving block 15 is fixedly installed on the top of the chassis 14, a driving disk 20 is arranged above the moving block 15, a driving column 19 is rotatably installed inside the moving block 15, and the upper and lower ends of the driving column 19 are arranged on the upper and lower ends of the driving column 19. The end surfaces respectively cooperate with the driving disk 20 and the ratchet mechanism, positioning mechanisms 21 are arranged on both sides of the driving disk 20, and a steel pipe sleeve 32 is arranged above the driving disk 20. The positioning mechanism 21 cooperates with the steel pipe sleeve 32, and the output end of the cylinder 4 is connected to the moving block 15. Through the positioning mechanism 21, the steel pipe sleeve 32 can be fixed on the surface of the driving disk 20, and the upper and lower end surfaces of the driving column 19 respectively cooperate with the driving disk 20 and the ratchet mechanism, so that the steel pipe sleeve 32 can be reversed during the movement of the sliding support 5 to the rear of the main frame 2, so as to facilitate the cutting work at both ends of the steel pipe sleeve 32.

[0018] The inner wall of the main frame 2 is provided with a rack 7, and the gear 6 is meshed with the rack 7. Through the push-pull operation of the moving block 15 by the cylinder 4, the gear 6 will rotate during the movement of the sliding bracket 5 inside the main frame 2. The ratchet mechanism includes a ratchet 8, and the ratchet 8 is installed inside the gear 6. The inner wall of the gear 6 is provided with a first contraction groove 9, and the inner wall of the first contraction groove 9 is provided with a limiting groove 12. A first spring 10 is provided inside the first contraction groove 9, and an extension rod 11 is installed at the end of the first spring 10. A limiting plate 13 is fixedly provided in the middle of the extension rod 11, and the end of the limiting plate 13 is movably clamped in the limiting groove 12. The other end of the extension rod 11 One end cooperates with the ratchet 8, and the bottom of the driving column 19 is fixedly connected to the ratchet 8. The first spring 10 is used to make the end of the extension rod 11 contact the ratchet 8. When the sliding bracket 5 moves toward the rear of the main frame 2, the extension rod 11 will be inserted into the tooth groove of the ratchet 8 to push the ratchet 8 to rotate. When the ratchet 8 rotates, the driving column 19 will also rotate. After the sliding bracket 5 moves to the rear of the main frame 2, the driving column 19 will rotate 180°. When the sliding bracket 5 moves to the front of the main frame 2, the extension rod 11 will shrink to the inside of the first shrinkage groove 9 under the action of the ratchet 8 and the first spring 10. At this time, the ratchet 8 will not rotate.

[0019] Two first positioning plates 17 are symmetrically installed on the inner wall of the main frame 2, and a slide groove 18 is provided on the surface of the first positioning plates 17. Slide blocks 16 are fixedly installed on both sides of the moving block 15, and the slide blocks 16 are slidably installed in the slide grooves 18. Through the cooperation of the slide blocks 16 and the slide grooves 18, the moving block 15 is slidably set inside the main frame 2, and the driving column 19 is rotatably installed in the moving block 15. Two limiting holes 34 are symmetrically provided on the inner wall of the moving block 15, and two recovery grooves 36 are symmetrically provided on the surface of the driving column 19 inside the moving block 15. A third spring 35 is provided inside the recovery groove 36, and a positioning semicircular block 37 is provided at the end of the third spring 35. The two positioning semicircular blocks 37 correspond to the two limiting holes 34. When the sliding support 5 moves toward the rear of the main frame 2, the extending rod 11 pushes the ratchet 8 to rotate. At this time, the driving column 19 will rotate, and the positioning semicircular blocks 37 will be squeezed with the surface of the limiting holes 34. Under the action of the squeezing force, the positioning semicircular blocks 37 will shrink into the recovery groove 36, and the driving column 19 will rotate smoothly. When the sliding support 5 moves toward the front of the main frame 2, the elastic force of the third spring 35 will clamp the end of the positioning semicircular block 37 in the limiting hole 34, thereby positioning the driving column 19, so that when the sliding support 5 moves toward the front of the main frame 2, the driving column 19 will not rotate.

[0020] A second positioning plate 22 is fixedly arranged on the top of the first positioning plate 17, and a guide groove 23 is provided on the surface of the second positioning plate 22. The end of the guide groove 23 close to the cutting saw device 1 is set as a straight groove, and the end of the guide groove 23 away from the cutting saw device 1 is set as an inclined groove. The positioning mechanism 21 includes an operating groove, which is arranged at the end of the driving disk 20. A spring groove 28 is provided on the inner wall of the operating groove, and a second spring 29 is arranged inside the spring groove 28. A T-shaped column 24 is movably installed inside the operating groove, and the end of the second spring 29 is connected to the T The other end of the T-shaped column 24 is slidably arranged in the guide groove 23, and the two ends of the T-shaped column 24 near the second spring 29 are connected with connecting rods 26 through a rotating shaft. A light rod 25 is arranged inside the operation groove and above the T-shaped column 24. Two sliding plates 27 are symmetrically sleeved on the surface of the light rod 25. The other end of the connecting rod 26 is connected to the bottom of the sliding plate 27 through a rotating shaft. A long plate 30 is fixedly arranged on the top of the sliding plate 27. The adjacent surfaces of the two long plates 30 are connected with a clamping plate 31 through bolts. A wing ring 33 is arranged at the middle end of the steel pipe sleeve 32 The clamping plate 31 corresponds to the steel pipe sleeve 32 and the wing ring 33. When the sliding bracket 5 moves to the rear of the main frame 2, the driving column 19 will drive the driving disk 20 to rotate. At this time, the T-shaped column 24 will be separated from the guide groove 23, and the elastic force of the second spring 29 will push the T-shaped column 24 to the outside of the driving disk 20. Under the action of the connecting rod 26, the two sliding plates 27 will move to the side of the light rod 25. At this time, the clamping force of the clamping plate 31 on the steel pipe sleeve 32 and the wing ring 33 is reduced, so that when the sliding bracket 5 moves to the rear of the main frame 2, the staff can The steel pipe sleeve 32 is replaced. When the sliding support 5 moves toward the front of the main frame 2, since the T-shaped column 24 is slidably set inside the guide groove 23, the T-shaped column 24 will move from the inclined groove to the straight groove. When the T-shaped column 24 is in the straight groove, the straight groove has an extrusion effect on the T-shaped column 24 in the direction of the drive disk 20. The T-shaped column 24 will move toward the middle end of the drive disk 20 at this time. Under the action of the connecting rod 26, the two sliding plates 27 will move toward the middle end of the light rod 25. At this time, the clamping plate 31 supports and clamps the steel pipe sleeve 32 and the wing ring 33.

[0021] The front and rear end surfaces of the upper surface of the driving disk 20 are both provided with positioning holes, and the surface of the driving disk 20 is provided with a bracket, the bottom of the bracket is inserted into the positioning hole, the bracket can support the steel pipe sleeve 32, and the bracket is arranged to be replaceable and can adapt to steel pipe sleeves 32 of different diameters.

[0022] The surface of the steel pipe sleeve 32 to be cut protrudes from the main frame 2, and a clamping mechanism 38 is provided on the working table surface of the cutting saw device 1. The clamping mechanism 38 has a clamping and positioning function for the end of the steel pipe sleeve 32 to ensure the stability of the steel pipe sleeve 32 when the cutting saw device 1 is working.

[0023] A steel pipe sleeve cutting machine and cutting method that is easy to adjust, the method steps are as follows: S1. First, the staff installs a clamping plate 31 corresponding to the steel pipe sleeve 32 and the wing ring 33 on the surface of the long board 30, and then places the steel pipe sleeve 32 on the top of the driving disk 20. The bracket on the surface of the driving disk 20 supports the steel pipe sleeve 32, and the wing ring 33 is clamped between the two clamping plates 31; S2, the cylinder 4 pushes the moving block 15 to move toward the front end of the main frame 2. In the process of the sliding support 5 moving toward the front of the main frame 2, under the action of the ratchet mechanism and the positioning semicircular block 37, the ratchet 8 will not rotate, and the driving column 19 will not rotate. At the same time, the T-shaped column 24 will move from the inclined groove to the straight groove. When the T-shaped column 24 is in the straight groove, the straight groove has an extrusion effect on the T-shaped column 24 in the direction of the driving disk 20. At this time, the T-shaped column 24 will move toward the middle end of the driving disk 20. Under the action of the connecting rod 26, the two sliding plates 27 will move toward the middle end of the light rod 25. At this time, the positioning mechanism 21 has a supporting and clamping effect on the steel pipe sleeve 32 and the wing ring 33. After the surface of the steel pipe sleeve 32 to be cut protrudes from the main frame 2, the clamping mechanism 38 on the surface of the working table of the cutting saw device 1 has a clamping and positioning effect on the end of the steel pipe sleeve 32, thereby achieving cutting of the steel pipe sleeve 32; S3, the moving block 15 is driven by the cylinder 4 to move to the rear of the main frame 2, and the first spring 10 is used to make the end of the extension rod 11 contact the ratchet 8. When the sliding support 5 moves to the rear of the main frame 2, the extension rod 11 will be inserted into the tooth groove of the ratchet 8, pushing the ratchet 8 to rotate. When the ratchet 8 rotates, the driving column 19 will also rotate. After the sliding support 5 moves to the rear of the main frame 2, the driving column 19 will rotate 180°, and at the same time, the positioning semicircular block 37 will be squeezed with the surface of the limiting hole 34, and under the action of the squeezing force, the positioning semicircular block 37 will shrink into the recovery groove 36, the driving column 19 will rotate smoothly, and the driving column 19 will drive the driving disk 20 to rotate. At this time, the T-shaped column 24 disengages from the guide groove 23, and the elastic force of the second spring 29 will push the T-shaped column 24 to the outside of the driving disk 20. Under the action of the connecting rod 26, the two sliding plates 27 will move to the side of the light rod 25 to achieve the reversing operation of the steel pipe sleeve 32.

[0024] Working principle: First, the staff installs the steel pipe sleeve 32 and the clamping plate 31 corresponding to the wing ring 33 on the surface of the long board 30, and installs the bracket on the surface of the driving disk 20, and then places the steel pipe sleeve 32 on the top of the driving disk 20. The bracket supports the steel pipe sleeve 32, and the wing ring 33 is clamped between the two clamping plates 31. Next, the cylinder 4 pushes the moving block 15 to move toward the front end of the main frame 2. In the process of the sliding bracket 5 moving toward the front of the main frame 2, the extended rod 11 will shrink to the inside of the first shrinking groove 9 under the action of the ratchet 8 and the first spring 10. At this time, the ratchet 8 will not rotate, and the elastic force of the third spring 35 will position the end of the positioning semicircular block 37 The drive column 19 is positioned by being clamped in the limiting hole 34, so that when the sliding support 5 moves toward the front of the main frame 2, the drive column 19 will not rotate, and since the T-shaped column 24 is slidably arranged inside the guide groove 23, the T-shaped column 24 will move from the inclined groove to the straight groove. When the T-shaped column 24 is in the straight groove, the straight groove has an extrusion effect on the T-shaped column 24 in the direction of the drive disk 20. The T-shaped column 24 will move toward the middle end of the drive disk 20 at this time. Under the action of the connecting rod 26, the two sliding plates 27 will move toward the middle end of the light rod 25. At this time, the clamping plate 31 supports and clamps the steel pipe sleeve 32 and the wing ring 33, and then the surface to be cut of the steel pipe sleeve 32 will protrude from the main body Frame 2, the clamping mechanism 38 on the surface of the working table of the cutting saw device 1 has a clamping and positioning effect on the end of the steel pipe sleeve 32, ensuring the stability of the steel pipe sleeve 32 when being cut. After cutting, the cylinder 4 drives the moving block 15 to move to the rear of the main frame 2, and uses the first spring 10 to make the end of the extension rod 11 contact with the ratchet 8. When the sliding support 5 moves to the rear of the main frame 2, the extension rod 11 will be inserted into the tooth groove of the ratchet 8, pushing the ratchet 8 to rotate. When the ratchet 8 rotates, the driving column 19 will also rotate. After the sliding support 5 moves to the rear of the main frame 2, the driving column 19 will rotate 180°, and at the same time, the positioning semicircular block 37 will be squeezed with the surface of the limiting hole 34, and Under the action of the extrusion force, the positioning semicircular block 37 will shrink into the recovery groove 36, the driving column 19 will rotate smoothly, and the driving column 19 will drive the driving disk 20 to rotate. At this time, the T-shaped column 24 will disengage from the guide groove 23, and the elastic force of the second spring 29 will push the T-shaped column 24 to the outside of the driving disk 20. Under the action of the connecting rod 26, the two sliding plates 27 will move toward the side of the light rod 25 to realize the reversing operation of the steel pipe sleeve 32. Finally, when the sliding support 5 is at the rear of the main frame 2, the clamping force of the splint 31 on the steel pipe sleeve 32 and the wing ring 33 is reduced, so that when the sliding support 5 moves to the rear of the main frame 2, the staff can replace the steel pipe sleeve 32.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A steel pipe sleeve cutting machine that is easy to adjust, comprising a main frame (2), characterized in that: A cutting saw device (1) is arranged at the front end of the main frame (2); a support frame (3) is installed at the rear of the main frame (2) by means of bolts; a cylinder (4) is arranged inside the support frame (3); a sliding support (5) is arranged inside the main frame (2); the sliding support (5) comprises a gear (6); a ratchet mechanism is installed inside the gear (6); a chassis (14) is arranged above the gear (6); a moving block (15) is fixedly installed on the top of the chassis (14); the moving block (15) is arranged on the top of the chassis (14); A driving disc (20) is arranged above the moving block (15); a driving column (19) is rotatably installed inside the moving block (15); the upper and lower end surfaces of the driving column (19) respectively cooperate with the driving disc (20) and the ratchet mechanism; positioning mechanisms (21) are arranged on both sides of the driving disc (20); a steel pipe sleeve (32) is arranged above the driving disc (20); the positioning mechanism (21) cooperates with the steel pipe sleeve (32); and the output end of the cylinder (4) is connected to the moving block (15).

2. The easily adjustable steel pipe sleeve cutting machine according to claim 1, characterized in that: The inner wall of the main frame (2) is provided with a rack (7), the gear (6) meshes with the rack (7), the ratchet mechanism comprises a ratchet (8), the ratchet (8) is installed inside the gear (6), the inner wall of the gear (6) is provided with a first contraction groove (9), the inner wall of the first contraction groove (9) is provided with a limiting groove (12), a first spring (10) is provided inside the first contraction groove (9), an extension rod (11) is installed at the end of the first spring (10), a limiting plate (13) is fixedly provided at the middle of the extension rod (11), the end of the limiting plate (13) is movably clamped in the limiting groove (12), the other end of the extension rod (11) is matched with the ratchet (8), and the bottom of the driving column (19) is fixedly connected to the ratchet (8).

3. The easily adjustable steel pipe sleeve cutting machine according to claim 2, characterized in that: Two first positioning plates (17) are symmetrically mounted on the inner wall of the main frame (2), and a slide groove (18) is provided on the surface of the first positioning plates (17). Slide blocks (16) are fixedly mounted on both sides of the moving block (15), and the slide blocks (16) are slidably mounted in the slide grooves (18). Two limiting holes (34) are symmetrically arranged on the inner wall of the moving block (15). Two recovery grooves (36) are symmetrically arranged on the surface of the driving column (19) located inside the moving block (15). A third spring (35) is arranged inside the recovery groove (36), and a positioning semicircular block (37) is arranged at the end of the third spring (35). The two positioning semicircular blocks (37) correspond to the two limiting holes (34).

4. The easily adjustable steel pipe sleeve cutting machine according to claim 3, characterized in that: A second positioning plate (22) is fixedly arranged on the top of the first positioning plate (17), a guide groove (23) is provided on the surface of the second positioning plate (22), an end of the guide groove (23) close to the cutting saw device (1) is provided as a straight groove, and an end of the guide groove (23) away from the cutting saw device (1) is provided as an inclined groove, the positioning mechanism (21) comprises an operating groove, the operating groove is provided at the end of the driving disk (20), a spring groove (28) is provided on the inner wall of the operating groove, a second spring (29) is provided inside the spring groove (28), a T-shaped column (24) is movably installed inside the operating groove, an end of the second spring (29) is connected to the T-shaped column (24), and the T-shaped column (24) is provided with a spring groove (28) disposed inside the spring groove (28). The other end is slidably arranged in the guide groove (23), and the two ends of the T-shaped column (24) close to the second spring (29) are connected to connecting rods (26) through rotating shafts. A light rod (25) is arranged inside the operating groove and above the T-shaped column (24), and two sliding plates (27) are symmetrically sleeved on the surface of the light rod (25). The other end of the connecting rod (26) is connected to the bottom of the sliding plate (27) through a rotating shaft. A long plate (30) is fixedly arranged on the top of the sliding plate (27), and the adjacent surfaces of the two long plates (30) are connected with a clamping plate (31) through bolts. A wing ring (33) is arranged at the middle end of the steel pipe sleeve (32), and the clamping plate (31) corresponds to the steel pipe sleeve (32) and the wing ring (33).

5. The easily adjustable steel pipe sleeve cutting machine according to claim 4, characterized in that: Positioning holes are provided at the front and rear end surfaces of the upper surface of the driving disk (20), and a bracket is provided on the surface of the driving disk (20), and the bottom of the bracket is inserted into the positioning hole.

6. The easily adjustable steel pipe sleeve cutting machine according to claim 5, characterized in that: The surface of the steel pipe sleeve (32) to be cut protrudes from the main frame (2), and a clamping mechanism (38) is provided on the surface of the workbench of the cutting saw device (1).

7. An easily adjustable steel pipe sleeve cutting machine and cutting method, which is used according to claim 6, and the method steps are as follows: S1. First, a worker installs a clamping plate (31) having a steel pipe sleeve (32) and a wing ring (33) corresponding to the steel pipe sleeve (32) on the surface of the long board (30), and then places the steel pipe sleeve (32) on the top of the driving disk (20). The bracket on the surface of the driving disk (20) supports the steel pipe sleeve (32), and the wing ring (33) is clamped between the two clamping plates (31); S2. The moving block (15) is pushed toward the front end of the main frame (2) by the cylinder (4). When the sliding support (5) moves toward the front of the main frame (2), the ratchet (8) will not rotate and the driving column (19) will not rotate under the action of the ratchet mechanism and the positioning semicircular block (37). At the same time, the T-shaped column (24) will move from the inclined groove to the linear groove. When the T-shaped column (24) is in the linear groove, the linear groove has a squeezing effect on the T-shaped column (24) in the direction of the driving disk (20). The shaped column (24) will move toward the middle end of the driving disk (20) at this time. Under the action of the connecting rod (26), the two sliding plates (27) will move toward the middle end of the light rod (25). At this time, the positioning mechanism (21) has a supporting and clamping effect on the steel pipe sleeve (32) and the wing ring (33). After the surface of the steel pipe sleeve (32) to be cut protrudes from the main frame (2), the clamping mechanism (38) on the surface of the workbench of the cutting saw device (1) has a clamping and positioning effect on the end of the steel pipe sleeve (32), thereby achieving cutting of the steel pipe sleeve (32); S3. The moving block (15) is driven to move to the rear of the main frame (2) by the cylinder (4). The end of the extension rod (11) is brought into contact with the ratchet (8) by the first spring (10). When the sliding support (5) moves to the rear of the main frame (2), the extension rod (11) is inserted into the tooth groove of the ratchet (8), pushing the ratchet (8) to rotate. When the ratchet (8) rotates, the driving column (19) also rotates. After the sliding support (5) moves to the rear of the main frame (2), the driving column (19) rotates 180°, and the positioning semicircular block (37) is The positioning semicircular block (37) is squeezed with the surface of the limiting hole (34), and under the action of the squeezing force, the positioning semicircular block (37) will shrink into the recovery groove (36), the driving column (19) will rotate smoothly, and the driving column (19) will drive the driving disk (20) to rotate. At this time, the T-shaped column (24) is separated from the guide groove (23), and the elastic force of the second spring (29) will push the T-shaped column (24) to the outside of the driving disk (20). Under the action of the connecting rod (26), the two sliding plates (27) will move to the side of the light rod (25), thereby realizing the reversing operation of the steel pipe sleeve (32).

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