Cutting equipment for special-shaped steel pipe

Abstract

The invention relates to cutting equipment for a special-shaped steel pipe, which comprises a bearing seat, an inclined plane is arranged on the bearing seat, a supporting table synchronously moving along with the special-shaped steel pipe is transversely and slidably arranged on the inclined plane, and a driving table is axially and slidably arranged on the supporting table; the cutting mechanism is arranged on the driving table, axially moves on the supporting table along with the driving table and is used for cutting the special-shaped steel pipe; and the limiting mechanism comprises jacking seats symmetrically arranged on the supporting table, clamping blocks arranged in an opening and closing mode and a plurality of stabilizing wheels. According to the special-shaped steel pipe cutting device, the special-shaped steel pipe can be kept in a stable position state in the cutting process, and cutting deviation and deformation caused by equipment vibration are effectively reduced.

Description

Technical Field

[0001] This application relates to the technical field of pipe cutting, and in particular to a cutting device for special-shaped steel pipes. Background Art

[0002] Special-shaped steel pipes play an important role in modern industrial manufacturing and are widely used in fields such as machining, construction, and aerospace. With the continuous progress of industrial technology, the demand for cutting devices for special-shaped steel pipes is increasing day by day. An efficient cutting device can not only improve production efficiency but also ensure cutting accuracy and surface quality, thus meeting the diverse needs of different industries for special-shaped steel pipes. However, traditional cutting technologies often struggle to balance cutting accuracy and stability when dealing with special-shaped steel pipes with complex shapes, which has become an important factor restricting the development of the industry.

[0003] Existing cutting devices for special-shaped steel pipes have some problems in practical applications. The support and positioning of special-shaped steel pipes during the cutting process are not stable enough, and the steel pipes are prone to displacement due to the vibration generated during cutting, affecting cutting accuracy. Moreover, during the cutting process, the impact of cutting vibration on special-shaped steel pipes cannot be effectively reduced. Especially when cutting special-shaped steel pipes with complex shapes, traditional clamping methods are difficult to provide sufficient supporting force, resulting in easy position offset of the steel pipes during cutting, thus affecting cutting accuracy and surface quality.

[0004] In view of the above-related technologies, it is necessary to propose a cutting device for special-shaped steel pipes to solve one of the above technical problems. Summary of the Invention

[0005] To solve one of the above technical problems, this application provides a cutting device for special-shaped steel pipes.

[0006] The cutting device for special-shaped steel pipes provided by this application adopts the following technical solutions: A cutting device for special-shaped steel pipes, comprising: A bearing seat, on which an inclined surface is provided, and a support table that moves synchronously with the special-shaped steel pipe is horizontally slidably arranged on the inclined surface, and a driving table is axially slidably arranged on the support table; A cutting mechanism, arranged on the driving table and axially moving on the support table following the driving table, for cutting the special-shaped steel pipe; The limiting mechanism includes a lifting seat symmetrically arranged on the supporting platform, a clamping block arranged in an open and closed manner, and a plurality of stabilizing wheels. A cutting gap is arranged between the symmetrically arranged lifting seats. The clamping blocks are arranged on the lifting seats for clamping the special-shaped steel pipe. A swing frame is arranged on the inner side of the lifting seat near the cutting gap. A plurality of stabilizing wheels are rotatably arranged on the swing frame. The plurality of stabilizing wheels respectively contact the diagonals of the special-shaped steel pipe to reduce the influence of cutting vibration on the special-shaped steel pipe.

[0007] By adopting the above technical scheme, the special-shaped steel pipe can maintain a stable position during the cutting process, effectively reducing the cutting deviation and deformation caused by equipment vibration, the inclined surface on the bearing seat can guide the support table to move synchronously with the special-shaped steel pipe, and at the same time the driving table slides axially on the support table to ensure that the cutting mechanism accurately locates and tracks the cutting position of the special-shaped steel pipe; the symmetrically arranged lifting seats in the limiting mechanism form a cutting gap, and the clamping blocks are arranged on the lifting seats to achieve stable clamping of the special-shaped steel pipe to avoid displacement during the cutting process; a number of stabilizing wheels are arranged on the swing frame on the inner side of the lifting seat, and the stabilizing wheels rotate and contact with the diagonal part of the special-shaped steel pipe, effectively reducing the influence of cutting vibration on the special-shaped steel pipe and improving cutting accuracy and stability; the linkage relationship between the various components is clear to ensure that the cutting process is efficient and stable.

[0008] Optionally, the swing frame includes a positioning frame arranged at the lifting seat and a swing plate symmetrically arranged in the positioning frame for rotation, a self-locking motor is arranged on the side of the positioning frame, the output end of the self-locking motor is connected to the tail end of the swing plate, a swing groove is arranged at the end of the swing plate, and the stabilizing wheel protrudes and is rotatably arranged in the swing groove.

[0009] By adopting the above technical solution, the setting of the swing frame enables the stabilizing wheel to be adaptively adjusted according to the shape and position of the special-shaped steel pipe, thereby effectively reducing the displacement or damage of the steel pipe caused by vibration during the cutting process; the specific effects are as follows: the positioning frame provides stable rotation support for the swing plate, and the self-locking motor drives the swing plate to rotate to achieve the angle adjustment of the stabilizing wheel, ensuring that the stabilizing wheel is in close contact with the diagonal part of the special-shaped steel pipe, thereby enhancing the clamping stability; the design of the swing groove further optimizes the installation position and activity range of the stabilizing wheel, and improves the supporting effect on the special-shaped steel pipe, thereby significantly reducing the impact of cutting vibration on the steel pipe.

[0010] Optionally, a correction mechanism is also included for correcting the special-shaped steel pipe guided to the jacking seat. The correction mechanism includes a mounting frame fixedly connected to the support platform and a plurality of correction rollers. A correction groove is provided through the top of the mounting frame. The plurality of correction rollers are adjustably arranged in the correction groove to achieve axial and vertical position correction of the special-shaped steel pipe in the correction groove.

[0011] By adopting the above technical solution, the installation frame and the deviation-correcting rollers can correct the deviation of the special-shaped steel pipe guided to the lifting seat; specifically, several deviation-correcting rollers that can be adjusted in the deviation-correcting groove can adjust the position of the special-shaped steel pipe in the axial and vertical directions, ensuring that the special-shaped steel pipe is in the correct position before cutting, thereby improving the cutting accuracy and reducing the cutting quality problems caused by position deviation.

[0012] Optionally, telescopic grooves are provided on both sides and the bottom of the inner wall of the deviation-correcting groove, telescopic cylinders are arranged in the telescopic grooves, a rotating frame is arranged at the output end of the telescopic cylinders, and the deviation-correcting rollers are convexly and rotatably arranged in the rotating frame.

[0013] By adopting the above technical solution, the telescopic cylinders drive the rotating frame to adjust the position in the telescopic grooves, so that the deviation-correcting rollers can flexibly adjust the contact points according to the size and position of the special-shaped steel pipe, ensuring the accurate alignment of the special-shaped steel pipe in the axial and vertical directions before cutting, effectively improving the cutting accuracy and reducing material waste.

[0014] Optionally, it further includes an opening and closing mechanism for clamping and opening the special-shaped steel pipe by the clamping blocks. The opening and closing mechanism includes an opening and closing cylinder arranged on the lifting seat and a combined block connected to the side of the clamping blocks. The combined block is arranged at the output end of the opening and closing cylinder to realize the opening and closing of the clamping blocks for separating the special-shaped steel pipe after cutting.

[0015] By adopting the above technical solution, the opening and closing mechanism can realize the automatic opening and closing operation of the clamping blocks on the special-shaped steel pipe; specifically, the opening and closing cylinder drives the combined block to act, thereby driving the clamping blocks to open and close, ensuring that the special-shaped steel pipe is firmly clamped before cutting and can be quickly separated after cutting; this design effectively improves the operation efficiency of the cutting equipment, reduces manual intervention, and at the same time ensures the stability of the cutting process.

[0016] Optionally, a limiting piece for adapting to the size of the special-shaped steel pipe is arranged on the inner wall of the clamping blocks to maintain the stability of the special-shaped steel pipe when it is clamped by the clamping blocks.

[0017] By adopting the above technical solution, the limiting piece arranged on the inner wall of the clamping blocks can adapt to the size of the special-shaped steel pipe, ensuring the close fit between the special-shaped steel pipe and the clamping blocks during clamping, thereby improving the clamping stability, reducing the shaking of the special-shaped steel pipe during cutting, and ensuring the cutting accuracy and quality.

[0018] Optionally, the cutting mechanism includes a driving chassis, a cutting toothed disc and a protective cover fixedly connected to the driving seat, the cutting toothed disc is arranged on the output end of the driving chassis, the cutting toothed disc cuts the special-shaped steel pipe at the cutting gap, the protective cover is arranged above the cutting toothed disc, and a connecting plate is provided on the side of the protective cover, and one end of the connecting plate is fixedly connected to the top of the driving chassis.

[0019] By adopting the above technical solution, the cutting mechanism can achieve precise cutting of special-shaped steel pipes. The specific effects are as follows: the drive chassis provides power to drive the cutting tooth disc to cut the special-shaped steel pipe at the cutting gap, ensuring the stability and efficiency of the cutting process; the protective cover is set above the cutting tooth disc to effectively prevent the flying chips generated during the cutting process from splashing and improve the safety of operation; the connecting piece fixes the protective cover to the drive chassis, enhances the stability of the overall structure, and avoids loosening of components due to vibration during the cutting process.

[0020] Optionally, it also includes a water guiding mechanism for reducing the heat of the cutting tooth disk and flying chips caused by cutting, the water guiding mechanism includes a water guiding pipe and a nozzle, one end of the water guiding pipe is connected to an external water source, and the other end passes through the protective cover, the nozzle is arranged in the protective cover, the nozzle is connected to the water guiding pipe, and the nozzle is arranged corresponding to the cutting surface of the cutting tooth disk.

[0021] By adopting the above technical solution, the heat generated during the cutting process can be effectively discharged, and the flying chips are also significantly reduced, thereby improving the stability and safety of the cutting operation; in addition, this solution can also extend the service life of the cutting tooth disc and reduce equipment maintenance costs.

[0022] Optionally, a buffer mechanism is also included to buffer the special-shaped steel pipe after cutting from falling off the lifting seat. The buffer mechanism includes a buffer frame fixedly connected to the support platform and a plurality of buffer wheels. The buffer frame is provided with a plurality of elastic parts. A buffer frame is provided on the top of the elastic parts. The buffer wheels are rotatably arranged on the buffer frame.

[0023] By adopting the above technical solution, when the cut special-shaped steel pipe falls from the jacking seat, the elastic member on the buffer frame can effectively absorb the impact force to prevent the steel pipe from being damaged due to free fall.

[0024] Optionally, a waste liquid collecting tank is provided in the supporting seat away from the inclined surface for guiding the waste liquid.

[0025] By adopting the above technical solution, the waste liquid generated during the cutting process can be effectively collected to prevent the waste liquid from flowing freely and causing equipment pollution and safety hazards. At the same time, it is convenient for subsequent centralized processing to keep the working environment clean.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The limit mechanism sets a swing frame and multiple stabilizing wheels on the inner side of the lifting seat, so that the stabilizing wheels can contact the diagonal parts of the special-shaped steel pipe, thus forming multi-point support. This design effectively reduces the vibration generated during the cutting process and significantly improves the cutting accuracy and stability; 2. The deviation correction mechanism realizes the position correction of the special-shaped steel pipe in the axial and vertical directions by setting a mounting frame and a number of adjustable deviation correction rollers, effectively improving the positioning accuracy of the steel pipe before entering the cutting area, thereby ensuring the accuracy of the subsequent cutting process; 3. The buffer mechanism uses a buffer frame supported by elastic parts and a rotatable buffer wheel to stably receive the cut special-shaped steel pipe, avoiding deformation or damage caused by impact when the steel pipe falls, thereby improving the qualified rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional view of a cutting device for special-shaped steel pipes in this application.

[0028] Figure 2 It is a front view of a cutting device for special-shaped steel pipes in the present application.

[0029] Figure 3 It is a side view of a cutting device for special-shaped steel pipes in the present application.

[0030] Figure 4 yes Figure 1 A schematic diagram of the enlarged structure at point A in the middle.

[0031] Figure 5 yes Figure 1 A magnified schematic diagram of the structure at point B in the middle.

[0032] In the figure: 1, bearing seat; 11, inclined surface; 12, support platform; 13, driving platform; 14, waste liquid collection tank; 2, cutting mechanism; 21, driving chassis; 22, cutting gear plate; 23, protective cover; 24, connecting piece; 3, limiting mechanism; 31, lifting seat; 32, clamping block; 321, limiting piece; 33, stabilizing wheel; 34, cutting gap; 35, swing frame; 351, positioning frame; 352, swing plate; 3 53. Self-locking motor; 354. Swinging slot; 4. Correction mechanism; 41. Mounting frame; 42. Correction roller; 43. Correction slot; 44. Telescopic slot; 45. Telescopic cylinder; 46. Rotating frame; 5. Opening and closing mechanism; 51. Opening and closing cylinder; 52. Combination block; 6. Water guide mechanism; 61. Water guide pipe; 62. Sprinkler; 7. Buffer mechanism; 71. Buffer frame; 72. Buffer wheel; 73. Elastic member; 74. Buffer frame. DETAILED DESCRIPTION

[0033] The following is combined with the accompanying drawingsFigures 1-5 Further details of this application are provided below.

[0034] Example 1. Refer to Figures 1-4 An embodiment of this application discloses a cutting device for special-shaped steel pipes, including: a bearing seat 1, a cutting mechanism 2, and a limiting mechanism 3.

[0035] The bearing seat 1 is provided with an inclined surface 11. A support table 12 that moves synchronously with the special-shaped steel pipe is transversely slidably arranged on the inclined surface 11. A driving table 13 is axially slidably arranged on the support table 12. The cutting mechanism 2 is arranged on the driving table 13 and axially moves on the support table 12 to cut the special-shaped steel pipe. The limiting mechanism 3 includes lifting seats 31 symmetrically arranged on the support table 12, clamping blocks 32 that are openable and closable, and a plurality of stabilizing wheels 33. A cutting gap 34 is arranged between the symmetrically arranged lifting seats 31. The clamping blocks 32 are respectively arranged on the lifting seats 31 to clamp the special-shaped steel pipe. A swing frame 35 is arranged on the inner side of the lifting seat 31 close to the cutting gap 34. The plurality of stabilizing wheels 33 are rotatably arranged on the swing frame 35. The plurality of stabilizing wheels 33 respectively contact the diagonal corners of the special-shaped steel pipe to reduce the influence of cutting vibration on the special-shaped steel pipe.

[0036] During the cutting process, the special-shaped steel pipe can maintain a stable position state, effectively reducing cutting deviation and deformation caused by equipment vibration. The inclined surface 11 on the bearing seat 1 can guide the support table 12 to move synchronously with the special-shaped steel pipe. At the same time, the driving table 13 axially slides on the support table 12 to ensure that the cutting mechanism 2 accurately positions and tracks the cutting position of the special-shaped steel pipe. In the limiting mechanism 3, the symmetrically arranged lifting seats 31 form a cutting gap 34, and the clamping blocks 32 are respectively arranged on the lifting seats 31 to achieve stable clamping of the special-shaped steel pipe, avoiding deviation during the cutting process. The swing frame 35 inside the lifting seat 31 drives the stabilizing wheels 33 to change angles, so that the stabilizing wheels 33 contact the diagonal corners of the special-shaped steel pipe, effectively reducing the influence of cutting vibration on the special-shaped steel pipe, improving cutting accuracy and stability. The linkage relationship between the components is clear, ensuring an efficient and stable cutting process.

[0037] Refer to Figure 1 and Figure 4, in this embodiment, more specifically, the swing frame 35 includes a positioning frame 351 disposed at the lifting seat 31 and symmetric swing plates 352 rotatably arranged within the positioning frame 351. A self-locking motor 353 is provided on the side of the positioning frame 351, and the output end of the self-locking motor 353 is connected to the tail end of the swing plate 352. A swing groove 354 is provided at the end of the swing plate 352, and the stabilizing wheel 33 is rotatably and protrudingly arranged within the swing groove 354. The setting of the swing frame 35 enables the stabilizing wheel 33 to adaptively adjust according to the shape and position of the special-shaped steel pipe, thereby effectively reducing the deviation or damage of the steel pipe caused by vibration during the cutting process; the specific effects are as follows: The positioning frame 351 provides a stable rotational support for the swing plate 352, and the self-locking motor 353 drives the swing plate 352 to rotate, realizing the angle adjustment of the stabilizing wheel 33 to ensure that the stabilizing wheel 33 is in close contact with the diagonal of the special-shaped steel pipe, enhancing the clamping stability; the design of the swing groove 354 further optimizes the installation position and movement range of the stabilizing wheel 33, improving the support effect on the special-shaped steel pipe, thereby significantly reducing the impact of cutting vibration on the steel pipe.

[0038] Reference Figure 1 and Figure 5 , in this embodiment, more specifically, it further includes a deviation rectifying mechanism 4 for rectifying the special-shaped steel pipe guided to the lifting seat 31. The deviation rectifying mechanism 4 includes a mounting frame 41 fixedly connected to the support table 12 and several deviation rectifying rollers 42. A deviation rectifying groove 43 is provided through the top of the mounting frame 41, and several deviation rectifying rollers 42 are adjustably arranged within the deviation rectifying groove 43 to achieve the position rectification of the special-shaped steel pipe in the axial and vertical directions within the deviation rectifying groove 43. The setting of the mounting frame 41 and the deviation rectifying rollers 42 can rectify the special-shaped steel pipe guided to the lifting seat 31; specifically, several deviation rectifying rollers 42 adjustably arranged within the deviation rectifying groove 43 can adjust the position of the special-shaped steel pipe in the axial and vertical directions to ensure that the special-shaped steel pipe is in the correct position before cutting, thereby improving the cutting accuracy and reducing the cutting quality problems caused by position deviation.

[0039] Reference Figure 1 and Figure 5 , in this embodiment, more specifically, telescopic grooves 44 are provided on both sides and the bottom of the inner wall of the deviation rectifying groove 43, telescopic cylinders 45 are arranged within the telescopic grooves 44, a rotating frame 46 is provided at the output end of the telescopic cylinder 45, and the deviation rectifying rollers 42 are rotatably and protrudingly arranged within the rotating frame 46. The telescopic cylinder 45 drives the rotating frame 46 to adjust its position within the telescopic groove 44, so that the deviation rectifying rollers 42 can flexibly adjust the contact points according to the size and position of the special-shaped steel pipe, ensuring the precise alignment of the special-shaped steel pipe in the axial and vertical directions before cutting, effectively improving the cutting accuracy and reducing material waste.

[0040] Reference Figure 1, in this embodiment, more specifically, it further includes an opening and closing mechanism 5 for clamping and opening the special-shaped steel pipe by the clamping block 32. The opening and closing mechanism 5 includes an opening and closing cylinder 51 arranged on the lifting seat 31 and a combined block 52 connected to the side of the clamping block 32. The combined block 52 is arranged on the output end of the opening and closing cylinder 51 to realize the opening and closing of the clamping block 32 for separating the special-shaped steel pipe after cutting. The opening and closing mechanism 5 can realize the automatic opening and closing operation of the clamping block 32 for the special-shaped steel pipe. Specifically, the opening and closing cylinder 51 drives the combined block 52 to move, thereby driving the clamping block 32 to open and close, ensuring that the special-shaped steel pipe is firmly clamped before cutting and can be quickly separated after cutting. This design effectively improves the operation efficiency of the cutting equipment, reduces manual intervention, and at the same time ensures the stability of the cutting process.

[0041] Reference Figure 1 , in this embodiment, more specifically, a limiting piece 321 for adapting to the size of the special-shaped steel pipe is arranged on the inner wall of the clamping block 32 to maintain the stability of the special-shaped steel pipe when it is clamped by the clamping block 32. The arrangement of the limiting piece 321 on the inner wall of the clamping block 32 can adapt to the size of the special-shaped steel pipe, ensure the close fit between the special-shaped steel pipe and the clamping block 32 during clamping, thereby improving the clamping stability, reducing the shaking of the special-shaped steel pipe during cutting, and ensuring the cutting accuracy and quality.

[0042] Reference Figure 1 , in this embodiment, more specifically, the cutting mechanism 2 includes a drive chassis 21, a cutting tooth disc 22 and a protective cover 23 fixedly connected to the drive seat. The cutting tooth disc 22 is arranged on the output end of the drive chassis 21. The cutting tooth disc 22 cuts the special-shaped steel pipe at the cutting gap 34. The protective cover 23 is arranged above the cutting tooth disc 22. A connecting piece 24 is arranged on the side of the protective cover 23. One end of the connecting piece 24 is fixedly connected to the top of the drive chassis 21. The cutting mechanism 2 can realize the precise cutting of the special-shaped steel pipe. The specific effects are as follows: The drive chassis 21 provides power to drive the cutting tooth disc 22 to cut the special-shaped steel pipe at the cutting gap 34, ensuring the stability and efficiency of the cutting process; The protective cover 23 is arranged above the cutting tooth disc 22, effectively preventing the flying chips generated during cutting from splashing and improving the operation safety; The connecting piece 24 fixedly connects the protective cover 23 and the drive chassis 21, enhancing the stability of the overall structure and preventing the components from loosening due to vibration during cutting.

[0043] Reference Figure 1 and Figure 3In this embodiment, more specifically, a water guide mechanism 6 is further included, which is used to reduce the heat of the cutting tooth disk 22 and the flying chips caused by cutting. The water guide mechanism 6 includes a water guide pipe 61 and a nozzle 62. One end of the water guide pipe 61 is connected to an external water source, and the other end passes through the protective cover 23. The nozzle 62 is arranged in the protective cover 23, and the nozzle 62 is connected to the water guide pipe 61. The nozzle 62 is arranged corresponding to the cutting surface of the cutting tooth disk 22. The heat generated during the cutting process can be effectively discharged, and the flying chips are also significantly reduced, thereby improving the stability and safety of the cutting operation; in addition, this solution can also extend the service life of the cutting tooth disk 22 and reduce the equipment maintenance cost.

[0044] refer to Figure 1 In the present embodiment, more specifically, a waste liquid collecting tank 14 is arranged in the supporting seat 1 away from the inclined surface 11, which can effectively collect the waste liquid generated in the cutting process, prevent the waste liquid from flowing freely to cause equipment pollution and safety hazards, and facilitate subsequent centralized processing to keep the working environment clean.

[0045] The implementation principle of a cutting device for special-shaped steel pipes in an embodiment of the present application is as follows: through the coordinated action of the bearing seat 1, the support platform 12 and the driving platform 13, the stable transportation and positioning of the special-shaped steel pipe are achieved; the cutting mechanism 2 completes the cutting action under the drive of the driving platform 13, and the clamping block 32 and the stabilizing wheel 33 in the limiting mechanism 3 work together to ensure the stability of the special-shaped steel pipe during the cutting process; the design of the swing frame 35 enables the stabilizing wheel 33 to automatically adjust its position according to the shape of the special-shaped steel pipe, reducing the impact of cutting vibration on the special-shaped steel pipe, thereby improving the cutting accuracy and surface quality.

[0046] refer to Figure 1 and Figure 2 , Embodiment 2, the difference between this embodiment and Embodiment 1 is that: it also includes a buffer mechanism 7, which is used to buffer the special-shaped steel pipe after cutting from the lifting seat 31. The buffer mechanism 7 includes a buffer frame 71 and a plurality of buffer wheels 72 fixedly connected to the support platform 12. The buffer frame 71 is provided with a plurality of elastic members 73. A buffer frame 74 is provided on the top of the elastic member 73. The buffer wheel 72 is rotatably set on the buffer frame 74. When the special-shaped steel pipe after cutting falls from the lifting seat 31, the elastic member 73 on the buffer frame 71 can effectively absorb the impact force to prevent the steel pipe from being damaged due to free fall.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cutting device for special-shaped steel pipes, characterized in that: include: A bearing seat (1), wherein the bearing seat (1) is provided with an inclined surface (11), a support platform (12) is provided on the inclined surface (11) for transverse sliding and moving synchronously with the special-shaped steel pipe, and a driving platform (13) is provided on the support platform (12) for axial sliding; A cutting mechanism (2) is arranged on the driving platform (13), follows the driving platform (13) to move axially on the supporting platform (12), and is used for cutting special-shaped steel pipes; A limiting mechanism (3), the limiting mechanism (3) comprising a lifting seat (31) symmetrically arranged on the support platform (12), a clamping block (32) arranged in an openable and closable manner, and a plurality of stabilizing wheels (33); a cutting gap (34) is arranged between the symmetrically arranged lifting seats (31); the clamping blocks (32) are arranged on the lifting seats (31) and are used to clamp the special-shaped steel pipe; a swing frame (35) is arranged on the inner side of the lifting seat (31) close to the cutting gap (34); a plurality of stabilizing wheels (33) are rotatably arranged on the swing frame (35); and the plurality of stabilizing wheels (33) respectively contact the diagonal portions of the special-shaped steel pipe to reduce the influence of cutting vibration on the special-shaped steel pipe.

2. The cutting device for special-shaped steel pipes according to claim 1, characterized in that: The swing frame (35) comprises a positioning frame (351) arranged at the lifting seat (31) and a swing plate (352) symmetrically arranged in rotation in the positioning frame (351); a self-locking motor (353) is arranged on the side of the positioning frame (351); the output end of the self-locking motor (353) is connected to the tail end of the swing plate (352); a swing groove (354) is arranged at the end of the swing plate (352); and the stabilizing wheel (33) protrudes and is rotatably arranged in the swing groove (354).

3. The cutting device for special-shaped steel pipes according to claim 1, characterized in that: It also includes a correction mechanism (4) for correcting the deviation of the special-shaped steel pipe guided to the lifting seat (31), the correction mechanism (4) including a mounting frame (41) fixedly connected to the support platform (12) and a plurality of correction rollers (42), a correction groove (43) is provided through the top of the mounting frame (41), and the plurality of correction rollers (42) are adjustably arranged in the correction groove (43) to achieve axial and vertical position correction of the special-shaped steel pipe in the correction groove (43).

4. The cutting device for special-shaped steel pipes according to claim 3, characterized in that: Telescopic grooves (44) are provided on both sides of the inner wall and the bottom of the deflection correction groove (43), a telescopic cylinder (45) is provided in the telescopic groove (44), a rotating frame (46) is provided at the output end of the telescopic cylinder (45), and the deflection correction roller (42) protrudes and is rotatably provided in the rotating frame (46).

5. The cutting device for special-shaped steel pipes according to claim 1, characterized in that: It also includes an opening and closing mechanism (5) for the clamping block (32) to clamp and open the special-shaped steel pipe. The opening and closing mechanism (5) includes an opening and closing cylinder (51) arranged on the lifting seat (31) and a combination block (52) connected to the side of the clamping block (32). The combination block (52) is arranged on the output end of the opening and closing cylinder (51) to realize the opening and closing of the clamping block (32) for separation after cutting of the special-shaped steel pipe.

6. The cutting device for special-shaped steel pipes according to claim 1, characterized in that: The inner wall of the clamping block (32) is provided with a limiting piece (321) for adapting to the size of the special-shaped steel pipe, and is used to maintain the stability of the special-shaped steel pipe when it is clamped by the clamping block (32).

7. The cutting device for special-shaped steel pipes according to claim 1, characterized in that: The cutting mechanism (2) comprises a driving chassis (21) fixedly connected to the driving seat, a cutting toothed disc (22) and a protective cover (23); the cutting toothed disc (22) is arranged on the output end of the driving chassis (21); the cutting toothed disc (22) cuts the special-shaped steel pipe at the cutting gap (34); the protective cover (23) is arranged above the cutting toothed disc (22); a connecting piece (24) is arranged on the side of the protective cover (23); one end of the connecting piece (24) is fixedly connected to the top of the driving chassis (21).

8. The cutting device for special-shaped steel pipes according to claim 7, characterized in that: It also includes a water guide mechanism (6) for reducing the heat of the cutting tooth disk (22) and the flying chips caused by cutting, the water guide mechanism (6) including a water guide pipe (61) and a nozzle (62), one end of the water guide pipe (61) is connected to an external water source, and the other end passes through the protective cover (23), the nozzle (62) is arranged in the protective cover (23), the nozzle (62) is connected to the water guide pipe (61), and the nozzle (62) is arranged corresponding to the cutting surface of the cutting tooth disk (22).

9. The cutting device for special-shaped steel pipes according to claim 3, characterized in that: It also includes a buffer mechanism (7) for buffering the special-shaped steel pipe after cutting from falling off the lifting seat (31), the buffer mechanism (7) including a buffer frame (71) fixedly connected to the support platform (12) and a plurality of buffer wheels (72), the buffer frame (71) is provided with a plurality of elastic members (73), a buffer frame (74) is provided on the top of the elastic member (73), and the buffer wheel (72) is rotatably provided on the buffer frame (74).

10. The cutting device for special-shaped steel pipes according to claim 1, characterized in that: A waste liquid collection tank (14) is provided in the bearing seat (1) away from the inclined surface (11) for guiding waste liquid.

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