Cutting device for steel pipe machining

Abstract

The utility model discloses a cutting device for steel pipe machining, which relates to the technical field of steel pipe cutting and comprises a workbench, top plates are connected to four corners of the upper side of the workbench through supporting columns, a linear motor is transversely arranged on one side, facing the workbench, of each top plate, and a telescopic cutting assembly is arranged at the output end of each linear motor. The two ends, in the length direction, of the upper side of the workbench are each provided with two first clamping and conveying assemblies, a steel pipe is clamped between the two first clamping and conveying assemblies at the same end of the workbench, and two first grooves parallel to each other are formed in the upper side of the workbench in the length direction. And second clamping and conveying assemblies sliding in the length direction of the first grooves are arranged in the two first grooves correspondingly, a baffle capable of sliding up and down is arranged at one end, in the length direction, of the workbench, and the device has the advantage that the steel pipe cutting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe cutting, in particular to a cutting device for steel pipe processing. Background Technique

[0002] A steel pipe has a hollow cross-section and its length is much greater than the diameter or circumference. Steel pipes are classified according to their uses into steel pipes for conveying pipelines, engineering structures, thermal equipment, petrochemical industries, mechanical manufacturing, geological drilling, high-pressure equipment, etc. Steel pipes are widely used for conveying fluids and powdered solids, exchanging heat energy, manufacturing mechanical parts and containers.

[0003] The steel pipe cutting device with the publication number of CN220240163U includes a placing block at the left end. The upper surface of the placing block is provided with a steel pipe chute. A cutting groove is opened at the right end of the placing block. A cutting machine support frame is arranged at the upper end of the cutting groove. A hydraulic press is arranged at the upper end of the cutting machine support frame. A cutting machine is connected to the lower end of the hydraulic press. Clamping support frames are arranged at both ends of the cutting machine support frame. An electric telescopic rod is arranged at the upper end of the clamping support frame. A clamping port is arranged at the lower end of the electric telescopic rod. A slide rail is arranged at the right end of the placing block. A steel pipe limiting block is arranged inside the slide rail. A screw rod is arranged inside the slide rail. The screw rod and the steel pipe limiting block are inserted for use. A screw rod motor is arranged on the right surface of the slide rail at the right end of the screw rod. A scale is opened on the upper surface of the slide rail.

[0004] This device uses the electric telescopic rod to push the clamping port downward to clamp the steel pipe tightly. By driving the screw rod to rotate through the screw rod motor, the screw rod and the steel pipe limiting block rotate relative to each other. Through the action of screw thread cooperation, the steel pipe limiting block moves relative to the screw rod, realizing the position adjustment of the end limit of the steel pipe, so as to be able to adjust the cutting length of the steel pipe. Although it can cut steel pipes of different sizes to a specified length according to requirements, after cutting is completed, the next section of the steel pipe cannot be automatically conveyed to the cutting position for continuous cutting, and the cutting efficiency is low. Therefore, it is very necessary to design a cutting device for steel pipe processing that improves the cutting efficiency of steel pipes. Content of the Utility Model

[0005] The purpose of the utility model is to provide a cutting device for steel pipe processing in view of the existing technical defects, so as to solve the problems put forward in the above background technique.

[0006] To solve the above technical problems, the present utility model provides the following technical solution: A cutting device for steel pipe processing, including a workbench. At the four corners on the upper side of the workbench, there is a top plate connected by support columns. On the side of the top plate facing the workbench, a linear motor is horizontally arranged. The output end of the linear motor is provided with a telescopic cutting assembly. On both ends of the upper side of the workbench along the length direction, two groups of clamping and conveying assemblies one are arranged. A steel pipe is clamped between the two groups of clamping and conveying assemblies one at the same end of the workbench. On the upper side of the workbench along the length direction, two mutually parallel grooves one are opened. In both of the two grooves one, there is a clamping and conveying assembly two sliding along the length direction of the groove one. At one end of the workbench along the length direction, there is a baffle that can slide up and down.

[0007] The present utility model further explains that the clamping and conveying assembly one includes a housing two. On the upper side of the workbench, there is a chute two. The housing two slides in the chute two. The housing two is provided with a notch one. Inside the notch one, there is a rotatable roller one vertically arranged. On the side of the housing two away from the groove one, there is a hydraulic telescopic cylinder four. The output end of the hydraulic telescopic cylinder four is fixedly connected with a connecting block one. The other end of the connecting block one is fixedly connected with a pressing block one for pressing and fixing the steel pipe.

[0008] The present utility model further explains that the clamping and conveying assembly two includes a sliding seat. On the lower side of the sliding seat, there are multiple groups of chutes four horizontally arranged. On the bottom side of the groove one, there are sliding guide rails corresponding to the chutes. The sliding seat is provided with a threaded hole. The threaded hole is horizontally arranged and penetrates through the sliding seat. The threaded hole is screwed with a lead screw. The lead screw crosses the threaded hole. One end of the lead screw is rotatably connected with the side wall of the groove one. The other end of the lead screw penetrates through the side wall of the groove one and is fixedly connected with a driving motor three.

[0009] The present utility model further explains that the clamping and conveying assembly two further includes a housing three. On the upper side of the sliding seat, there is a chute three. The housing three slides in the chute three. Inside the notch two, there is a rotatable roller two vertically arranged. On the side of the housing three away from the baffle, there is a hydraulic telescopic cylinder six. The output end of the hydraulic telescopic cylinder six is fixedly connected with a connecting block two. The other end of the connecting block two is fixedly connected with a pressing block two for pressing and fixing the steel pipe.

[0010] The present utility model further explains that the cutting assembly includes a hydraulic telescopic cylinder one. The output end of the hydraulic telescopic cylinder one is fixedly connected with a housing one. Inside the housing one, there is a rotatable cutting blade. A rotating shaft penetrates through the center of the cutting blade. One end of the rotating shaft penetrates through the housing one and is connected with a driving motor one.

[0011] The present utility model is further described as follows. A first sliding groove is provided on the workbench corresponding to the baffle. A second hydraulic telescopic cylinder is arranged in the inner cavity of the workbench corresponding to the first sliding groove, and the output end of the second hydraulic telescopic cylinder is connected to the baffle.

[0012] The present utility model is further described as follows. On the same end of the workbench, two groups of clamping and conveying assemblies I are symmetrically arranged with the axis of the steel pipe as the center, and the two groups of clamping and conveying assemblies II are symmetric to each other with the axis of the steel pipe as the center.

[0013] The present utility model is further described as follows. The baffle is located on the center line between the two first grooves and on the side of the clamping and conveying assembly I away from the first groove.

[0014] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: In the present utility model, the clamping and conveying assembly I and the clamping and conveying assembly II are used to clamp the steel pipe and move the steel pipe at the same time, so as to clamp steel pipes of different models, and at the same time improve the conveying efficiency of the steel pipe after cutting.

[0015] By distributing and arranging the first pressing blocks and the second pressing blocks on the clamping and conveying assembly I and the clamping and conveying assembly II, the steel pipe is pressed and fixed, and the stability during the cutting of the steel pipe is improved.

[0016] By arranging a linear motor to move the cutting assembly, the cutting length of the steel pipe can be effectively adjusted. Description of the Drawings

[0017] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is the overall top view structure schematic diagram of the present utility model;

[0019] Figure 2 is the schematic diagram of the relevant structure of the workbench and the clamping and conveying assembly I of the present utility model;

[0020] Figure 3 is the schematic diagram of the workbench structure of the present utility model;

[0021] Figure 4 is the overall bottom view structure schematic diagram of the present utility model;

[0022] Figure 5 is the schematic diagram of the clamping and conveying assembly II of the present utility model;

[0023] Figure 6 is the schematic diagram of the clamping and conveying assembly I of the present utility model;

[0024] Figure 7 It is a schematic front sectional view of the workbench of the present utility model;

[0025] In the figure: 1, workbench; 2, support column; 3, top plate; 4, linear motor; 5, first hydraulic telescopic cylinder; 6, first housing; 7, cutting blade; 8, first driving motor; 9, steel pipe; 10, first clamping and conveying assembly; 11, first groove; 12, second clamping and conveying assembly; 13, baffle; 14, first chute; 15, second hydraulic telescopic cylinder; 16, second housing; 17, first notch; 18, first roller; 19, second driving motor; 20, second chute; 21, third hydraulic telescopic cylinder; 22, fourth hydraulic telescopic cylinder; 23, first connecting block; 24, first pressing block; 25, first arc-shaped groove; 26, sliding seat; 27, sliding guide rail; 28, threaded hole; 29, lead screw; 30, third driving motor; 31, third housing; 32, second notch; 33, second roller; 34, fourth driving motor; 35, third chute; 36, fifth hydraulic telescopic cylinder; 37, sixth hydraulic telescopic cylinder; 38, second connecting block; 39, second pressing block; 40, second arc-shaped groove; 41, fourth chute. Specific embodiments

[0026] The technical solution of the present utility model will be further described in detail and non-limitingly below in conjunction with the preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0027] Please refer to Figure 1-7 , the present utility model provides a technical solution: a cutting device for steel pipe processing, including a workbench 1, support columns 2 are fixedly connected to the four corners on the upper side of the workbench 1, and a top plate 3 is fixedly connected to the upper side of the support columns 2.

[0028] A linear motor 4 is horizontally arranged on the side of the top plate 3 facing the workbench 1, the output end of the linear motor 4 faces the side of the workbench 1, the linear motor 4 is located on the horizontal center line of the top plate 3, and a cutting assembly is fixedly connected to the output end of the linear motor 4. The cutting assembly includes a first hydraulic telescopic cylinder 5, the first hydraulic telescopic cylinder 5 is vertically arranged, and the fixed end of the first hydraulic telescopic cylinder 5 is connected to the center line of the output end of the linear motor 4.

[0029] The output end of the first hydraulic telescopic cylinder 5 is fixedly connected to a first housing 6, a rotatable cutting blade 7 is arranged in the first housing 6, a rotating shaft penetrates through the center of the cutting blade 7, one end of the rotating shaft penetrates through the first housing 6 and is connected to a first driving motor 8, the first driving motor 8 is fixedly connected to the first housing 6, and the other end of the rotating shaft is rotatably connected to the first housing 6.

[0030] On both ends of the upper side of the workbench 1 along the length direction, two groups of clamping and conveying components one 10 are provided. The two groups of clamping and conveying components one 10 at the same end of the workbench 1 are symmetrically arranged with the axis of the steel pipe 9 as the center, and the steel pipe 9 is clamped by the two groups of clamping and conveying components one 10 at the same end of the workbench 1.

[0031] The steel pipe 9 is horizontally arranged on the workbench 1. The steel pipe 9 is located on the center line of the workbench 1 and directly below the cutting blade 7.

[0032] On the upper side of the workbench 1 along the length direction, two groups of parallel grooves one 11 are provided. The grooves one 11 are located between the clamping and conveying components one 10 at both ends. In both groups of grooves one 11, clamping and conveying components two 12 that slide along the length direction of the grooves one 11 are provided.

[0033] One end of the workbench 1 along the length direction is provided with a baffle 13 that can slide up and down. The baffle 13 is located on the center line between the two groups of grooves one 11 and on the side of the clamping and conveying components one 10 away from the grooves one 11.

[0034] As shown in the schematic Figure 7 , the workbench 1 is provided with a chute one 14 corresponding to the baffle 13. The chute one 14 penetrates through the inner cavity of the workbench 1. The baffle 13 slides up and down in the chute one 14. A hydraulic telescopic cylinder two 15 is provided in the inner cavity of the workbench 1 corresponding to the chute one 14. The baffle 13 penetrates through the chute one 14 and is connected to the output end of the hydraulic telescopic cylinder two 15.

[0035] Place the steel pipe 9 between the two groups of grooves one 11 and clamp and convey it by the clamping and conveying components one 10 and the clamping and conveying components two 12, so that one end of the steel pipe 9 abuts against one side of the baffle 13. After clamping and fixing again by the clamping and conveying components one 10 and the clamping and conveying components two 12, cut it with the cutting blade 7.

[0036] As shown in the schematic Figure 1 As shown in the schematic Figure 2 As shown in the schematic Figure 6, two sets of clamping and conveying components one 10 are symmetrically arranged with the center line in the length direction of the workbench 1 as the center. The clamping and conveying component one 10 includes a housing two 16. The housing two 16 is provided with a notch one 17. The opening of the notch one 17 faces one side of the steel pipe 9. A rotatable roller one 18 is vertically arranged in the notch one 17. One end of the upper side of the roller shaft of the roller one 18 penetrates through the inner wall of the upper side of the notch one 17 and is fixedly connected with a driving motor two 19. The driving motor two 19 is fixedly connected to the housing two 16. A chute two 20 is opened on the upper side of the workbench 1. The housing two 16 slides in the chute two 20 along the width direction of the workbench 1. The bottom side of the notch one 17 is flush with the upper side of the workbench 1. The housing two 16 slides in the chute two 20 along the width direction of the workbench 1, so that the rollers one 18 on the two sets of clamping and conveying components one 10 move towards one side of the steel pipe 9, and the two rollers one 18 clamp the steel pipe 9. At the same time, the driving motor two 19 is started to make the roller one 18 rotate, so as to drive the steel pipe 9 to move through the rotation of the roller one 18.

[0037] On the side of the housing two 16 away from the steel pipe 9, a hydraulic telescopic cylinder three 21 is arranged. The fixed end of the hydraulic telescopic cylinder three 21 is fixed on the upper side of the workbench 1, and the output end of the hydraulic telescopic cylinder three 21 is connected with the housing two 16.

[0038] On the side of the housing two 16 away from the groove one 11, a hydraulic telescopic cylinder four 22 is arranged. The hydraulic telescopic cylinder four 22 is vertically arranged, so that the output end of the hydraulic telescopic cylinder four 22 faces upward and expands and contracts in the vertical direction. The output end of the hydraulic telescopic cylinder four 22 is fixedly connected with a connecting block one 23. The connecting block one 23 is in an "L" shape, and the other end of the connecting block one 23 is fixedly connected with a pressing block one 24.

[0039] The two sets of clamping and conveying components one 10 at the same end are symmetric with each other with the axis of the steel pipe 9 as the center. Therefore, the connecting blocks one 23 on the two sets of clamping and conveying components one 10 are commonly connected to the same set of pressing blocks one 24.

[0040] The pressing block one 24 is located above the steel pipe 9. An arc groove one 25 is opened on the side of the pressing block one 24 facing the steel pipe 9, which is convenient for pressing and fixing the steel pipe 9.

[0041] As shown in the schematic Figure 5 , the clamping and conveying component two 12 includes a sliding seat 26. A plurality of chutes four 41 are horizontally arranged on the lower side of the sliding seat 26. A sliding guide rail 27 is correspondingly arranged at the bottom side of the groove one 11 for the chute. A threaded hole 28 is opened on the sliding seat 26. The threaded hole 28 is horizontally arranged and penetrates through the sliding seat 26. A lead screw 29 is screwed in the threaded hole 28. The lead screw 29 crosses the threaded hole 28. One end of the lead screw 29 is rotatably connected with the side wall of the groove one 11, and the other end of the lead screw 29 penetrates through the side wall of the groove one 11 and is fixedly connected with a driving motor three 30. The driving motor three 30 is fixedly connected to the side wall of the workbench 1.

[0042] The second clamping and conveying assembly 12 further includes a third housing 31. The third housing 31 is provided with a second notch 32. The opening of the second notch 32 faces the side of the steel pipe 9. A rotatable second roller 33 is vertically arranged in the second notch 32. One end of the upper side of the roller shaft of the second roller 33 penetrates through the first notch 17 and is fixedly connected to a fourth driving motor 34. The fourth driving motor 34 is fixedly connected to the third housing 31. A third chute 35 is provided on the upper side of the sliding seat 26. The third chute 35 opens towards the side of the steel pipe 9. The bottom surface of the second notch 32 is flush with the upper surface of the sliding seat 26. The third housing 31 slides in the third chute 35 along the width direction of the workbench 1, so that the second rollers 33 on the two second clamping and conveying assemblies 12 move towards the side of the steel pipe 9, and the two second rollers 33 clamp the steel pipe 9. At the same time, the fourth driving motor 34 is started to make the second roller 33 rotate, so as to drive the steel pipe 9 to move through the rotation of the second roller 33.

[0043] A fifth hydraulic telescopic cylinder 36 is arranged on the side of the third housing 31 away from the steel pipe 9. The fixed end of the fifth hydraulic telescopic cylinder 36 is fixed on the upper side of the sliding seat 26, and the output end of the fifth hydraulic telescopic cylinder 36 is connected to the third housing 31.

[0044] A sixth hydraulic telescopic cylinder 37 is arranged on the side of the third housing 31 away from the baffle 13. The sixth hydraulic telescopic cylinder 37 is vertically arranged, so that the output end of the sixth hydraulic telescopic cylinder 37 faces upward and extends and retracts in the vertical direction. The output end of the sixth hydraulic telescopic cylinder 37 is fixedly connected to a second connecting block 38. The second connecting block 38 is in an "L" shape, and the other end of the second connecting block 38 is fixedly connected to a second pressing block 39.

[0045] The two second clamping and conveying assemblies 12 are symmetric with each other centered on the axis of the steel pipe 9. Therefore, the second connecting blocks 38 on the two first clamping and conveying assemblies 10 are commonly connected to the same second pressing block 39.

[0046] The second pressing block 39 is located above the steel pipe 9. An arc-shaped groove 40 is provided on the side of the second pressing block 39 facing the steel pipe 9, which is convenient for pressing and fixing the steel pipe 9.

[0047] In this embodiment, the steel pipe 9 is moved in between the two first clamping and conveying assemblies 10 at the end away from the baffle 13.

[0048] Control the output ends of the third hydraulic telescopic cylinders 21 on the two first clamping and conveying assemblies 10 at the end away from the baffle 13 to extend, so that the two first rollers 18 clamp the placed steel pipe 9. Subsequently, start the second driving motor 19 to make the first roller 18 rotate, so as to drive the steel pipe 9 to move towards the side close to the baffle 13.

[0049] At this time, the two second clamping and conveying assemblies 12 are located at the end away from the baffle 13 in the first groove 11. After passing through the two first clamping and conveying assemblies 10 on the side away from the baffle 13, the steel pipe 9 passes through between the two second clamping and conveying assemblies 12 again.

[0050] Control the output ends of the hydraulic telescopic cylinders five 36 on the two groups of clamping and conveying components two 12 to extend, so that the two groups of rollers two 33 clamp the steel pipe 9 that moves in, thereby clamping and positioning the steel pipe 9, making the steel pipe 9 parallel to the horizontal center line of the workbench 1. Subsequently, start the drive motor four 34 to make the rollers two 33 rotate, thereby driving the steel pipe 9 to move towards the side close to the baffle 13.

[0051] When the steel pipe 9 passes through between the two groups of clamping and conveying components one 10 close to the baffle 13, control the output ends of the hydraulic telescopic cylinders three 21 on the two groups of clamping and conveying components one 10 close to the baffle 13 to extend, so that the two groups of rollers one 18 clamp the passing steel pipe 9. Subsequently, start the drive motor two 19 to make the rollers one 18 rotate, thereby driving the steel pipe 9 to move towards the side close to the baffle 13. At this time, the baffle 13 is in the extended state, and the steel pipe 9 abuts against one side of the baffle 13 under the rotational action of the rollers one 18 and the rollers two 33. After the steel pipe 9 abuts against one side of the baffle 13, stop the operation of the drive motor two 19 and the drive motor four 34, so that the rollers one 18 and the rollers two 33 stop rotating.

[0052] According to actual needs, cut the steel pipe 9 to a specified length through the cutting blade 7. Control the two drive motors three 30 to drive the lead screw 29 to rotate. Drive the slide block 26 to move in the groove one 11 through the connection between the lead screw 29 and the nut, so that the pressing blocks two 39 on the two groups of clamping and conveying components two 12 are located above the side close to the baffle 13 at the cutting position where the steel pipe 9 needs to be cut off.

[0053] Subsequently, control the output ends of the hydraulic telescopic cylinder four 22 on the clamping and conveying component one 10 and the output end of the hydraulic telescopic cylinder six on the clamping and conveying component two 12 to retract, so that the pressing block one 24 and the pressing block two 39 move downward to press and fix the steel pipe 9.

[0054] After the steel pipe 9 is pressed and fixed, control the output end of the linear motor 4 to move through the linear motor 4, so that the cutting blade 7 is located directly above the cutting position where the steel pipe 9 needs to be cut off. Then control the hydraulic telescopic cylinder one 5 to extend, and at the same time start the drive motor one 8 to drive the cutting blade 7 to rotate. When the output end of the hydraulic telescopic cylinder one 5 is fully extended, make the lower side of the cutting blade 7 tangent to the workbench surface of the workbench 1, so that neither the cutting blade 7 nor the workbench 1 will be damaged, and at the same time the steel pipe 9 can be cut off.

[0055] After the cutting of the steel pipe 9 is completed, control the cutting blade 7 to reset through the hydraulic telescopic cylinder one 5, and at the same time stop the operation of the drive motor one 8. Subsequently, control the output ends of the hydraulic telescopic cylinder four 22 on the clamping and conveying component one 10 and the output end of the hydraulic telescopic cylinder six on the clamping and conveying component two 12 to extend, so that the pressing block one 24 and the pressing block two 39 move upward to cancel the pressing and fixing of the steel pipe 9. At the same time, control the hydraulic telescopic cylinder two 15 to retract, so that the baffle 13 moves downward and enters the chute one 14.

[0056] Control two groups of drive motors 30 to drive the lead screw 29 to rotate. Through the connection between the lead screw 29 and the nut, drive the slide block 26 to move within the first groove 11, so that the two groups of clamping and conveying components two 12 are located at one end of the first groove 11 close to the baffle 13.

[0057] Subsequently, start the drive motor two 19 on the two groups of clamping and conveying components one 10 on the side close to the baffle 13 and the drive motor four 34 on the two groups of clamping and conveying components two 12, so that the first roller 18 and the second roller 33 rotate to drive the cut steel pipe 9 to move out of the workbench 1 from the side of the baffle 13.

[0058] After the cut steel pipe 9 moves out of the workbench 1, stop the drive motor two 19 on the two groups of clamping and conveying components one 10 on the side close to the baffle 13 and the drive motor four 34 on the two groups of clamping and conveying components two 12, so that the first roller 18 and the second roller 33 stop rotating. Subsequently, control the two groups of drive motors 30 to drive the lead screw 29 to rotate. Through the connection between the lead screw 29 and the nut, drive the slide block 26 to move within the first groove 11, so that the two groups of clamping and conveying components two 12 are located at one end of the first groove 11 away from the baffle 13.

[0059] Start the drive motor two 19 on the two groups of clamping and conveying components one 10 on the side away from the baffle 13 and the drive motor four 34 on the two groups of clamping and conveying components two 12 again, so that the first roller 18 and the second roller 33 drive the remaining steel pipe 9 after cutting to move towards the side of the baffle 13. At the same time, control the hydraulic telescopic cylinder two 15 to extend, so that the baffle 13 extends again. Under the conveying and movement of the clamping and conveying components one 10 and the clamping and conveying components two 12, one end of the steel pipe 9 abuts against one side of the baffle 13, and cutting is carried out again according to actual requirements.

[0060] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0061] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A cutting device for steel pipe processing, comprising a workbench (1), characterized in that: At the four corners on the upper side of the workbench (1), a top plate (3) is connected through support columns (2). On the side of the top plate (3) facing the workbench (1), a linear motor (4) is horizontally arranged. The output end of the linear motor (4) is provided with a telescopic cutting assembly. On both ends of the upper side of the workbench (1) along the length direction, two groups of clamping and conveying assemblies one (10) are arranged. A steel pipe (9) is clamped between the two groups of clamping and conveying assemblies one (10) at the same end of the workbench (1). On the upper side of the workbench (1) along the length direction, two mutually parallel grooves one (11) are opened. In both of the two grooves one (11), a clamping and conveying assembly two (12) that slides along the length direction of the groove one (11) is arranged. At one end of the workbench (1) along the length direction, a baffle (13) that can slide up and down is arranged.

2. A cutting device for steel pipe processing according to claim 1, characterized in that: The clamping and conveying assembly one (10) includes a housing two (16). On the upper side of the workbench (1), a chute two (20) is opened. The housing two (16) slides in the chute two (20). The housing two (16) is provided with a notch one (17). Inside the notch one (17), a rotatable roller one (18) is vertically arranged. On the side of the housing two (16) away from the groove one (11), a hydraulic telescopic cylinder four (22) is arranged. The output end of the hydraulic telescopic cylinder four (22) is fixedly connected with a connecting block one (23). The other end of the connecting block one (23) is fixedly connected with a pressing block one (24) for pressing and fixing the steel pipe (9).

3. A cutting device for steel pipe processing according to claim 2, characterized in that: The clamping and conveying assembly two (12) includes a sliding seat (26). On the lower side of the sliding seat (26), multiple chutes four (41) are horizontally arranged. On the bottom side of the groove one (11), sliding guide rails (27) corresponding to the chutes are arranged. On the sliding seat (26), a threaded hole (28) is opened. The threaded hole (28) is horizontally arranged and penetrates through the sliding seat (26). A lead screw (29) is screwed in the threaded hole (28). The lead screw (29) passes through the threaded hole (28). One end of the lead screw (29) is rotatably connected with the side wall of the groove one (11). The other end of the lead screw (29) penetrates through the side wall of the groove one (11) and is fixedly connected with a driving motor three (30).

4. A cutting device for steel pipe processing according to claim 3, characterized in that: The clamping and conveying assembly two (12) further includes a housing three (31). The housing three (31) is provided with a notch two (32). On the upper side of the sliding seat (26), a chute three (35) is opened. The housing three (31) slides in the chute three (35). Inside the notch two (32), a rotatable roller two (33) is vertically arranged. On the side of the housing three (31) away from the baffle (13), a hydraulic telescopic cylinder six (37) is arranged. The output end of the hydraulic telescopic cylinder six (37) is fixedly connected with a connecting block two (38). The other end of the connecting block two (38) is fixedly connected with a pressing block two (39) for pressing and fixing the steel pipe (9).

5. A cutting device for steel pipe processing according to claim 1, characterized in that: The cutting assembly includes a first hydraulic telescopic cylinder (5). The output end of the first hydraulic telescopic cylinder (5) is fixedly connected to a first housing (6). A rotatable cutting blade (7) is arranged in the first housing (6). A rotating shaft penetrates through the center of the cutting blade (7). One end of the rotating shaft penetrates through the first housing (6) and is connected to a first driving motor (8).

6. A cutting device for steel pipe processing according to claim 1, characterized in that: The workbench (1) is provided with a first chute (14) corresponding to the baffle (13). A second hydraulic telescopic cylinder (15) is arranged in the inner cavity of the workbench (1) corresponding to the first chute (14). The output end of the second hydraulic telescopic cylinder (15) is connected to the baffle (13).

7. A cutting device for steel pipe processing according to claim 1, characterized in that: The two groups of first clamping and conveying assemblies (10) on the same end of the workbench (1) are symmetrically arranged with the axis of the steel pipe (9) as the center. The two groups of second clamping and conveying assemblies (12) are symmetric to each other with the axis of the steel pipe (9) as the center.

8. A cutting device for steel pipe processing according to claim 1, characterized in that: The baffle (13) is located on the center line between the two groups of first grooves (11) and on the side of the first clamping and conveying assembly (10) away from the first grooves (11).

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