A seamless steel pipe online cutting device

By designing seamless steel pipe online cutting equipment, using frame components and movable components to achieve automated cutting and efficient cooling, the problems of low cutting efficiency and poor accuracy of existing equipment are solved, and production efficiency and product quality are improved.

CN119733888APending Publication Date: 2025-04-01LINZHOU FENGBAO PIPE
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411972396.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-04-01

AI Technical Summary

Technical Problem

The existing seamless steel pipe cutting equipment has problems such as low cutting efficiency, poor accuracy and high maintenance costs. Especially when dealing with steel pipes of different specifications, the equipment parameter adjustment is complex and time-consuming, which affects production efficiency and product quality.

Method used

A seamless steel pipe online cutting equipment is designed, using frame assembly and movable assembly, and the X-axis and Y-axis movement of the cutting assembly is achieved through the transverse and longitudinal electric sliding table, combining the six-axis robotic arm and cooling assembly to achieve automated cutting and efficient cooling.

Benefits of technology

It improves the efficiency and accuracy of online cutting of seamless steel pipes, reduces manual intervention, realizes automated continuous production, simplifies the equipment debugging process, adapts to the rapid switching of steel pipes of multiple specifications, enhances the versatility and flexibility of the equipment, and improves the cooling effect of the cutting position through cooling components.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119733888A_ABST
    Figure CN119733888A_ABST
Patent Text Reader

Abstract

The invention discloses an online cutting device for seamless steel pipes, which relates to the technical field of seamless steel pipe processing, and comprises a frame assembly, wherein the frame assembly comprises a main frame, and a feeding assembly is fixedly installed at one end of the main frame, and a positioning and fixing assembly is fixedly installed at the end of the main frame opposite to the feeding assembly, a fixing plate is fixedly installed at one side of the main frame, and a movable assembly is fixedly installed at the upper end of the main frame, a cutting assembly is fixedly installed at the movable end of the movable assembly, and a cooling assembly is fixedly installed on the inner side of the fixed plate. Through the feeding assembly, online cutting is performed during production on a seamless steel pipe production line, and the cutting length can be flexibly adjusted according to demand. Through a supporting rod and a pressing plate, the device is suitable for cutting seamless steel pipes of different specifications during cutting, thereby reducing manual intervention and realizing automatic continuous production. During cutting, cold air and coolant are used for mixed cooling to improve the cooling effect.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of seamless steel pipe processing, in particular to an online cutting device for seamless steel pipes. Background Art

[0002] Seamless steel pipe is made of a whole round steel perforated, and there is no weld on the surface of the steel pipe, which is called seamless steel pipe. In the production of seamless steel pipe, it is necessary to cut the seamless steel pipe into the required length according to the demand, and then the cutting equipment is needed. At present, the cutting equipment on the seamless steel pipe production line mostly adopts the traditional offline cutting method, that is, the steel pipe is first transported to a specific cutting area and then cut. Although this method can meet the basic cutting needs, it has obvious shortcomings in efficiency and precision. With the improvement of the degree of industrial automation, the requirements for cutting speed and precision are also getting higher and higher. The existing traditional cutting equipment has been difficult to adapt to the needs of modern production. The common problems of existing cutting equipment are low cutting efficiency, poor precision, and high maintenance cost. Especially when processing steel pipes of different specifications, adjusting equipment parameters is complicated and time-consuming, which seriously affects production efficiency and product quality. It is inconvenient to use, and when cutting, the current cooling method mostly uses coolant for circulating cooling, which has low cooling efficiency and often causes heat accumulation at the cutting position, which affects the quality of the incision. Summary of the invention

[0003] In order to make up for the deficiencies of the prior art and solve at least one problem raised in the background technology, an online cutting device for seamless steel pipes is proposed.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a seamless steel pipe online cutting equipment, including a frame assembly, the frame assembly includes a main frame, and a feeding assembly is fixedly installed at one end of the main frame, a positioning and fixing assembly is fixedly installed on the end of the main frame opposite to the feeding assembly, a fixing plate is fixedly installed on one side of the main frame, and a movable assembly is fixedly installed on the upper end of the main frame, a cutting assembly is fixedly installed on the movable end of the movable assembly, and the movable assembly drives the cutting assembly to move in the X-axis and Y-axis directions, the movable assembly includes a transverse electric slide, a crossbeam is fixedly installed between the output ends of the transverse electric slide, a longitudinal electric slide is fixedly installed on the inner lower end of the crossbeam, the cutting assembly is fixedly installed at the output end of the longitudinal electric slide, and according to needs, two longitudinal electric slides can be installed, and two sets of the cutting assemblies are used for relative cutting Cutting, the movable component can also be a six-axis robot arm (not shown), the cutting component is fixedly installed on the six-axis robot arm, driving the cutting component to move in the X-axis and Y-axis directions, a cooling component is fixedly installed on the inner side of the fixed plate, the output end of the cooling component is connected to the cutting component, when in use, the seamless steel pipe that needs to be cut on the production line is transported to the inside of the main frame through the feeding component, the positioning and fixing component detects whether the steel pipe is in place, and after it is in place, the end of the steel pipe is fixed, and the position of the cutting component is adjusted according to the setting through the movable component, so as to adjust the cutting position according to the demand, after the adjustment is completed, cutting is performed through the cutting component, and when cutting, the cutting position is cold-cut through the cooling component to avoid heat accumulation at the cutting position, so as to facilitate use and improve the degree of automated cutting.

[0005] Preferably, a guide rod is obliquely fixedly installed in an array on one side of the interior of the main frame close to the fixed plate, and a support rod is hingedly connected to the interior of the main frame on the side opposite to the guide rod, and an anti-skid pad is embedded on the upper surface of the support rod, and the guide rod and the support rod are alternately distributed. When in use, the support rod is used to lift the lower end of the steel pipe, and the lower end is supported during cutting, and the anti-skid pad is used to improve the anti-skid effect during lifting, and the guide rod is used to guide the cut steel pipe to roll to the other side after cutting is completed.

[0006] Preferably, a fixing rod is vertically fixed on the lower end of one side of the main frame, a notch is opened at the lower end of the fixing rod, a lifting cylinder is rotatably installed inside the notch, and the output end of the lifting cylinder is hinged to the middle position of the lower surface of the supporting rod. Through the lifting cylinder, the inclination angle of the supporting rod can be easily adjusted, thereby facilitating the lifting of steel pipes of different specifications, which is convenient for use.

[0007] Preferably, the feeding assembly includes a mounting frame, a conveying wheel is rotatably mounted on the middle position of the mounting frame, and a driving motor is fixedly mounted on one side of the mounting frame, an output end of the driving motor is fixedly connected to the conveying wheel, a fixing frame is fixedly mounted on the upper end of the mounting frame, an adjusting cylinder is fixedly mounted on the upper end of the fixing frame, and a movable frame is fixedly mounted on the output end of the adjusting cylinder, a holding wheel is rotatably mounted inside the movable frame, the holding wheel is located directly above the conveying wheel, the conveying wheel and the holding wheel are both made of polyurethane material to improve wear resistance, the conveying wheel is driven to rotate by the driving motor to facilitate the conveying of the steel pipe, and during the conveying, the height of the movable frame is adjusted by the adjusting cylinder so that the distance between the conveying wheel and the holding wheel is adjusted, which is suitable for conveying steel pipes of different specifications and improves the stability during transportation, so that the conveying wheel and the holding wheel clamp the steel pipe.

[0008] Preferably, the positioning and fixing assembly includes a mounting plate, which is an L-shaped structure. One side of the mounting plate is fixedly mounted on the main frame. A photoelectric sensor is fixedly mounted on one side of the mounting plate, and the photoelectric sensor adopts a diffuse reflection photoelectric switch. A fixed cylinder is fixedly mounted on the upper end of the mounting plate, and a pressure plate is fixedly mounted on the output end of the fixed cylinder. The pressure plate is an inverted V-shaped structure. The photoelectric sensor is used to detect whether the steel pipe is in place. After the steel pipe is delivered to the position, the fixed cylinder pushes the pressure plate down, so that the pressure plate presses the upper end of the steel pipe, and cooperates with the support rod, the holding wheel and the conveying wheel to achieve the effect of fixing the steel pipe.

[0009] Preferably, the cutting assembly includes a cutting motor, a cutting head is fixedly installed on the output end of the cutting motor, the cutting head adopts a diamond saw blade, and a protective cover is sleeved on the top of the cutting head, one side of the protective cover is fixedly connected to the cutting motor, a pipe clamp is fixedly installed on the upper end of one side of the protective cover, a connecting pipe is installed on the upper clamp of the pipe clamp, and a gooseneck is fixedly installed on the lower end of the connecting pipe, a nozzle is fixedly installed on the lower end of the gooseneck, and the upper end of the connecting pipe is connected with the output end of the cooling assembly. When in use, the cutting head is driven by the cutting motor to rotate at a high speed, and the cutting head is moved toward the steel pipe through the movable assembly to achieve the effect of cutting the steel pipe, and coolant is sprayed on the cutting position through the gooseneck and the nozzle during cutting to facilitate cooling of the cutting position.

[0010] Preferably, the cooling component includes a high-pressure air pump, a vortex tube is fixedly installed at the output end of the high-pressure air pump, and the cold end air outlet of the vortex tube is connected to a gas tank, a delivery air pump is fixedly installed on one side of the gas tank, the cooling component also includes a water pump, a mixing tank is fixedly installed at the liquid outlet end of the water pump, the air outlet end of the delivery air pump is connected to the mixing tank, a steel wire hose is fixedly installed at the output end of the mixing tank, one end of the steel wire hose is connected to the connecting pipe in the cutting component, and when in use, the vortex tube is connected to the connecting pipe in the cutting component. The pipe separates hot and cold air from the high-pressure air pump, and allows the cold air to enter the interior of the gas tank, and allows the gas to enter the interior of the mixing tank through the delivery air pump, and the external coolant is delivered to the interior of the mixing tank through the water pump to mix the gas and liquid, so that the gas and liquid are delivered to the interior of the steel wire hose after the mixture, so as to facilitate the use of the cold air and the coolant to cool the cutting position, and to facilitate the use of the blasting effect of the bubbles when they are sprayed to blow away the debris generated during cutting, thereby improving the incision effect.

[0011] Preferably, an aeration plate is fixedly installed at the lower end of the interior of the mixing tank, and the output end of the delivery air pump extends to the interior of the mixing tank and communicates with the aeration plate. The aeration plate increases the density of bubbles and improves the gas-liquid mixing effect.

[0012] Preferably, a control host is fixedly installed on one side of the outside of the fixed plate, and the control host is electrically connected to the electrical components in the feeding assembly, the positioning and fixing assembly, the movable assembly, the cutting assembly and the cooling assembly, so as to facilitate automatic control of the technical solution through the control host, reduce human intervention, and improve the degree of automation during cutting.

[0013] In summary, the beneficial effects of the present invention are as follows: 1. Through the feeding assembly, when producing on the seamless steel pipe production line, online cutting is carried out, and the cutting length can be flexibly adjusted according to the needs. Through the support rod and the pressure plate, it is suitable for cutting seamless steel pipes of different specifications.

[0014] 2. When in use, automatic cutting is achieved, which improves the efficiency and accuracy of online cutting of seamless steel pipes, reduces manual intervention, and realizes automated continuous production.

[0015] 3. It simplifies the equipment debugging process. When cutting, it has strong adaptive ability and can adapt to the rapid switching of steel pipes of various specifications, which enhances the versatility and flexibility of the equipment and makes it easy to use. 4. When cutting, use a mixture of cold air and coolant to cool the cutting position to improve the cooling effect and reduce the impact of heat during cutting on the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle.

[0018] Figure 3 It is a structural schematic diagram of the frame assembly in the present invention.

[0019] Figure 4 It is a structural schematic diagram of the support rod position in the present invention.

[0020] Figure 5 It is a structural schematic diagram of the feeding assembly in the present invention.

[0021] Figure 6 It is a schematic diagram of the structure of the positioning and fixing component in the present invention.

[0022] Figure 7 It is a schematic structural diagram of the cutting assembly in the present invention.

[0023] Figure 8 It is a schematic diagram of the cooling assembly structure of the present invention.

[0024] Fig. 9 It is a schematic structural diagram of a cooling assembly in the present invention after partial sectioning.

[0025] Description of reference numerals: 1. Frame assembly; 11. Main frame; 12. Fixed plate; 13. Guide rod; 14. Support rod; 15. Anti-skid pad; 16. Fixed rod; 17. Notch; 18. Lifting cylinder; 2. Feeding assembly; 21. Mounting frame; 22. Conveying wheel; 23. Driving motor; 24. Fixed frame; 25. Adjusting cylinder; 26. Movable frame; 27. Holding wheel; 3. Positioning and fixing assembly; 31. Mounting plate; 32. Photoelectric sensor; 3 3. Fixed cylinder; 34. Pressure plate; 4. Movable assembly; 5. Cutting assembly; 51. Cutting motor; 52. Cutting head; 53. Protective cover; 54. Pipe clamp; 55. Connecting pipe; 56. Gooseneck pipe; 57. Nozzle; 6. Cooling assembly; 61. High-pressure air pump; 62. Vortex tube; 63. Gas tank; 64. Delivery air pump; 65. Water pump; 66. Mixing tank; 67. Steel hose; 68. Aeration plate; 7. Control host. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Specific examples are given below.

[0028] like Figure 1-Figure 9 As shown, a seamless steel pipe online cutting device includes a frame component 1, the frame component 1 includes a main frame 11, and a feeding component 2 is fixedly installed at one end of the main frame 11, a positioning and fixing component 3 is fixedly installed on the end of the main frame 11 opposite to the feeding component 2, a fixing plate 12 is fixedly installed on one side of the main frame 11, and a movable component 4 is fixedly installed on the upper end of the main frame 11, a cutting component 5 is fixedly installed on the movable end of the movable component 4, and the movable component 4 drives the cutting component 5 to move in the X-axis and Y-axis directions. The movable component 4 includes a transverse electric slide, a crossbeam is fixedly installed between the output ends of the transverse electric slide, a longitudinal electric slide is fixedly installed at the inner lower end of the crossbeam, the cutting component 5 is fixedly installed at the output end of the longitudinal electric slide, and according to needs, two longitudinal electric slides can be installed, and two sets of cutting components 5 are used for relative cutting. The movable component 4 can also be a six-axis robot arm (not shown), and the cutting component 5 is fixedly installed on the six-axis robot arm, driving the cutting component 5 to move in the X-axis and Y-axis directions. The fixed plate A cooling component 6 is fixedly installed on the inner side of 12, and the output end of the cooling component 6 is connected to the cutting component 5. A control host 7 is fixedly installed on the outer side of the fixed plate 12. The control host is electrically connected to the electrical components in the feeding component 2, the positioning and fixing component 3, the movable component 4, the cutting component 5 and the cooling component 6, so that the technical scheme can be automatically controlled through the control host 7, reducing human intervention and improving the degree of automation during cutting. When in use, the seamless steel pipe that needs to be cut on the production line is transported to the inside of the main frame 11 through the feeding component 2, the positioning and fixing component 3 is used to detect whether the steel pipe is in place. After it is in place, the end of the steel pipe is fixed, and the position of the cutting component 5 is adjusted according to the setting through the movable component 4, so that the cutting position can be adjusted according to the demand. After the adjustment is completed, cutting is performed through the cutting component 5, and when cutting, the cutting position is cold-cut through the cooling component 6 to avoid heat accumulation at the cutting position, which is convenient for use and improves the degree of automatic cutting.

[0029] like Figure 1 and Figure 4As shown, a guide rod 13 is fixedly installed in an array and tilted on one side of the main frame 11 near the fixed plate 12, and a support rod 14 is hinged on the side opposite to the guide rod 13 inside the main frame 11, and an anti-skid pad 15 is embedded on the upper surface of the support rod 14, and the guide rod 13 and the support rod 14 are alternately distributed. When in use, the support rod 14 is used to lift the lower end of the steel pipe, and the lower end is supported when cutting, and the anti-skid pad 15 is used to improve the anti-skid effect when lifting, and The guide rod 13 makes it convenient to guide and roll the cut steel pipe to the other side after the cutting is completed. A fixing rod 16 is vertically fixed on the lower end of one side of the main frame 11. A notch 17 is provided at the lower end of the fixing rod 16. A lifting cylinder 18 is rotatably installed inside the notch 17. The output end of the lifting cylinder 18 is hinged to the middle position of the lower surface of the supporting rod 14. The lifting cylinder 18 can be used to adjust the inclination angle of the supporting rod 14, thereby facilitating the lifting of steel pipes of different specifications, making it easy to use.

[0030] like Figure 5 As shown, the feeding assembly 2 includes a mounting frame 21, a conveying wheel 22 is rotatably mounted at the middle position of the mounting frame 21, and a driving motor 23 is fixedly mounted on one side of the mounting frame 21, and the output end of the driving motor 23 is fixedly connected to the conveying wheel 22, a fixing frame 24 is fixedly mounted on the upper end of the mounting frame 21, an adjusting cylinder 25 is fixedly mounted on the upper end of the fixing frame 24, and a movable frame 26 is fixedly mounted on the output end of the adjusting cylinder 25, and a holding wheel 27 is rotatably mounted inside the movable frame 26, and the holding wheel 27 is located directly above the conveying wheel 22, and the conveying wheel 22 and the holding wheel 27 are both made of polyurethane material to improve wear resistance, and the conveying wheel 22 is driven to rotate by the driving motor 23 to facilitate the conveying of the steel pipe, and during the conveying, the height of the movable frame 26 is adjusted by adjusting the cylinder 25, so that the distance between the conveying wheel 22 and the holding wheel 27 is adjusted, which is suitable for conveying steel pipes of different specifications, and improves the stability during conveying, so that the conveying wheel 22 and the holding wheel 27 clamp the steel pipe.

[0031] like Figure 6 As shown, the positioning and fixing component 3 includes a mounting plate 31, which is an L-shaped structure. One side of the mounting plate 31 is fixedly mounted on the main frame 11. A photoelectric sensor 32 is fixedly mounted on one side of the mounting plate 31. The photoelectric sensor 32 adopts a diffuse reflection photoelectric switch. A fixed cylinder 33 is fixedly mounted on the upper end of the mounting plate 31, and a pressure plate 34 is fixedly mounted on the output end of the fixed cylinder 33. The pressure plate 34 is an inverted V-shaped structure. The photoelectric sensor 32 is used to detect whether the steel pipe is in place. After the steel pipe is delivered to the right place, the fixed cylinder 33 pushes the pressure plate 34 down, so that the pressure plate 34 presses the upper end of the steel pipe, and cooperates with the support rod 14, the holding wheel 27 and the conveying wheel 22 to achieve the effect of fixing the steel pipe.

[0032] like Figure 7 As shown, the cutting assembly 5 includes a cutting motor 51, and a cutting head 52 is fixedly installed at the output end of the cutting motor 51. The cutting head 52 adopts a diamond saw blade, and a protective cover 53 is sleeved on the top of the cutting head 52. One side of the protective cover 53 is fixedly connected to the cutting motor 51. A pipe clamp 54 is fixedly installed on the upper end of one side of the protective cover 53. A connecting pipe 55 is installed on the upper clamp of the pipe clamp 54, and a gooseneck 56 is fixedly installed on the lower end of the connecting pipe 55. A nozzle 57 is fixedly installed on the lower end of the gooseneck 56. The upper end of the connecting pipe 55 is connected to the output end of the cooling assembly 6. When in use, the cutting motor 51 drives the cutting head 52 to rotate at a high speed, and the movable assembly 4 is used to make the cutting head 52 move toward the steel pipe to achieve the effect of cutting the steel pipe. When cutting, the gooseneck 56 and the nozzle 57 are used to spray coolant on the cutting position to facilitate cooling of the cutting position.

[0033] like Figure 8 and Fig. 9 As shown, the cooling assembly 6 includes a high-pressure air pump 61, a vortex tube 62 is fixedly installed at the output end of the high-pressure air pump 61, and the cold end air outlet of the vortex tube 62 is connected to the gas tank 63, and a delivery air pump 64 is fixedly installed on one side of the gas tank 63. The cooling assembly 6 also includes a water pump 65, and a mixing tank 66 is fixedly installed at the liquid outlet end of the water pump 65. The air outlet end of the delivery air pump 64 is connected to the mixing tank 66, and a steel wire hose 67 is fixedly installed at the output end of the mixing tank 66. One end of the steel wire hose 67 is connected to the connecting pipe 55 in the cutting assembly 5. When in use, the high-pressure gas blown out by the high-pressure air pump 61 is separated into cold and hot through the vortex tube 62, and the cold air enters the gas tank 63. The gas is pumped into the interior of the mixing tank 66 through the air delivery pump 64, and the external coolant is delivered to the interior of the mixing tank 66 through the water pump 65 for gas-liquid mixing, so that the gas-liquid mixture is delivered to the interior of the wire hose 67, so that the cutting position is cooled by mixing the cold air and the coolant, and the debris generated during cutting is blown away by the bursting effect of the bubbles during the spraying, so as to improve the cutting effect. An aeration plate 68 is fixedly installed at the lower end of the interior of the mixing tank 66, and the output end of the air delivery pump 64 extends to the interior of the mixing tank 66 and is connected to the aeration plate 68. The aeration plate 68 is used to increase the density of the bubbles and improve the gas-liquid mixing effect.

[0034] 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. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A seamless steel pipe online cutting device, characterized in that: The invention comprises a frame assembly (1), wherein the frame assembly (1) comprises a main frame (11), and a feeding assembly (2) is fixedly mounted on one end of the main frame (11), and a positioning and fixing assembly (3) is fixedly mounted on the other end of the main frame (11) opposite to the feeding assembly (2), a fixing plate (12) is fixedly mounted on one side of the main frame (11), and a movable assembly (4) is fixedly mounted on the upper end of the main frame (11), a cutting assembly (5) is fixedly mounted on the movable end of the movable assembly (4), and the movable assembly (4) drives the cutting assembly (5) to move in the X-axis and Y-axis directions, and a cooling assembly (6) is fixedly mounted on the inner side of the fixing plate (12), and the output end of the cooling assembly (6) is connected to the cutting assembly (5).

2. The online cutting device for seamless steel pipe according to claim 1, characterized in that: A flow guide rod (13) is fixedly installed in an array and tilted on one side of the main frame (11) near the fixed plate (12), and a support rod (14) is hingedly connected on the side of the main frame (11) opposite to the flow guide rod (13), and an anti-slip pad (15) is embedded on the upper surface of the support rod (14), and the flow guide rod (13) and the support rod (14) are alternately arranged.

3. The online cutting device for seamless steel pipe according to claim 2, characterized in that: A fixing rod (16) is vertically fixedly mounted at the lower end of one side of the main frame (11), a notch (17) is provided at the lower end of the fixing rod (16), a lifting cylinder (18) is rotatably mounted inside the notch (17), and an output end of the lifting cylinder (18) is hinged to the middle position of the lower surface of the supporting rod (14).

4. The online cutting device for seamless steel pipe according to claim 1, characterized in that: The feeding assembly (2) comprises a mounting frame (21), a conveying wheel (22) is rotatably mounted in the middle position of the mounting frame (21), a driving motor (23) is fixedly mounted on one side of the mounting frame (21), an output end of the driving motor (23) is fixedly connected to the conveying wheel (22), a fixing frame (24) is fixedly mounted on the upper end of the mounting frame (21), an adjusting cylinder (25) is fixedly mounted on the upper end of the fixing frame (24), and a movable frame (26) is fixedly mounted on the output end of the adjusting cylinder (25), a holding wheel (27) is rotatably mounted inside the movable frame (26), and the holding wheel (27) is located directly above the conveying wheel (22).

5. The online cutting device for seamless steel pipe according to claim 1, characterized in that: The positioning and fixing assembly (3) comprises a mounting plate (31), the mounting plate (31) being an L-shaped structure, one side of the mounting plate (31) being fixedly mounted on the main frame (11), one side of the mounting plate (31) being fixedly mounted with a photoelectric sensor (32), an upper end of the mounting plate (31) being fixedly mounted with a fixing cylinder (33), and an output end of the fixing cylinder (33) being fixedly mounted with a pressing plate (34), the pressing plate (34) being an inverted V-shaped structure.

6. The online cutting device for seamless steel pipe according to claim 1, characterized in that: The cutting assembly (5) comprises a cutting motor (51), a cutting head (52) is fixedly mounted on the output end of the cutting motor (51), a protective cover (53) is sleeved on the top of the cutting head (52), one side of the protective cover (53) is fixedly connected to the cutting motor (51), a pipe clamp (54) is fixedly mounted on the upper end of one side of the protective cover (53), a connecting pipe (55) is clamped on the upper clamp of the pipe clamp (54), a gooseneck pipe (56) is fixedly mounted on the lower end of the connecting pipe (55), a nozzle (57) is fixedly mounted on the lower end of the gooseneck pipe (56), and the upper end of the connecting pipe (55) is connected to the output end of the cooling assembly (6).

7. The online cutting device for seamless steel pipe according to claim 6, characterized in that: The cooling assembly (6) comprises a high-pressure air pump (61), a vortex tube (62) is fixedly mounted on the output end of the high-pressure air pump (61), and the cold end air outlet of the vortex tube (62) is connected to an air tank (63), and a delivery air pump (64) is fixedly mounted on one side of the air tank (63). The cooling assembly (6) also comprises a water pump (65), a mixing tank (66) is fixedly mounted on the liquid outlet end of the water pump (65), the air outlet end of the delivery air pump (64) is connected to the mixing tank (66), and a steel wire hose (67) is fixedly mounted on the output end of the mixing tank (66), and one end of the steel wire hose (67) is connected to the connecting pipe (55) in the cutting assembly (5).

8. The online cutting device for seamless steel pipe according to claim 7, characterized in that: An aeration plate (68) is fixedly mounted at the lower end of the interior of the mixing tank (66), and an output end of the delivery air pump (64) extends to the interior of the mixing tank (66) and is in communication with the aeration plate (68).

9. The online cutting device for seamless steel pipe according to claim 1, characterized in that: A control host (7) is fixedly mounted on one side of the exterior of the fixed plate (12), and the control host is electrically connected to electrical components in the feeding component (2), the positioning and fixing component (3), the movable component (4), the cutting component (5), and the cooling component (6).