A kind of laser cutting equipment and processing technology for building steel pipe

Abstract

The present invention relates to the field of laser cutting technology, and in particular provides a construction steel pipe laser cutting equipment and processing technology. The construction steel pipe laser cutting equipment includes a frame assembly, an external impurity removal assembly, a stabilization and conveying assembly, a laser cutting assembly, and a centering and clamping assembly. The present invention can stably center and clamp the construction steel pipe during the cutting process, thereby ensuring that the position of the laser beam and the surface of the steel pipe accurately corresponds during cutting, thereby improving the cutting quality and production efficiency, reducing the complexity and labor intensity of manual operation, and also ensuring the stability and accuracy of the cutting quality. In addition, while being able to provide grinding and impurity removal for the outer wall of the construction steel pipe, it can also clean and preheat the inner wall of the construction steel pipe to ensure cleanliness during cutting, reduce foreign matter and impurities, and minimize their impact on the cutting quality.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, and in particular to a construction steel pipe laser cutting device and a processing technology. Background Art

[0002] According to whether the steel pipe is seamless or not, it can be divided into seamless steel pipe and seam steel pipe. Seam steel pipe is divided into spiral steel pipe and straight seam steel pipe according to the different welds. Both are widely used in building piling, structure, steel structure, load-bearing, drainage and other aspects. The main materials are carbon steel, stainless steel and alloy steel. Compared with the traditional grinding wheel cutting method, cutting steel pipe by laser cutting equipment has the advantages of smoother cutting, complex shapes, relatively less exhaust gas and noise generated during laser cutting, meeting modern environmental protection requirements, and helping to improve the working environment. However, due to the large thickness of the steel pipe, a large heat-affected area will be generated during laser cutting, resulting in serious deformation of the cutting edge. At the same time, since the surface of the steel pipe is usually rough and the size of the steel pipe is usually not fixed, it is difficult to determine the center position of the steel pipe during laser cutting, resulting in the center position offset, which in turn causes the position of the laser beam to deviate from the surface of the steel pipe, resulting in a decrease in cutting quality, or inaccurate cutting lines, deflection or unevenness, affecting the cutting accuracy and surface quality of the cutting. Summary of the invention

[0003] Based on this, it is necessary to provide a construction steel pipe laser cutting equipment and processing technology to solve at least one technical problem in the background technology.

[0004] A construction steel pipe laser cutting device comprises a frame assembly, an external impurity removal assembly, a stabilization conveying assembly, a laser cutting assembly and a centering clamping assembly. The frame assembly comprises a steel pipe temporary storage rack, a cutting table, a transfer storage box and two conveying elements. The steel pipe temporary storage rack is installed at one end of the construction site ground, and a plurality of construction steel pipes are placed on the top of the steel pipe temporary storage rack. The cutting table is installed in the middle of the construction site ground, and the transfer storage box is installed at the other end of the construction site ground. A short pipe blanking ramp is provided at one end of the cutting table adjacent to the transfer storage box, and a short pipe blanking trough is recessed on the top surface of the cutting table adjacent to one end of the transfer storage box, and the short pipe blanking trough is located directly above the short pipe blanking ramp. Two conveying elements are respectively installed at both ends of the steel pipe temporary storage rack, the external impurity removal assembly is installed at one end of the cutting table adjacent to the steel pipe temporary storage rack, the stabilization conveying assembly is installed in the middle of the cutting table, the laser cutting assembly and the centering clamping assembly are both installed at the other end of the cutting table, and the laser cutting assembly is arranged adjacent to the stabilization conveying assembly.

[0005] As a further improvement of the present invention, each conveying element includes two vertical mounting plates, two conveying mounting cross plates and a conveying adjustment bar. The two vertical mounting plates are respectively installed in the middle part of the outer side of the steel pipe temporary storage rack along the length direction. A threaded hole is recessed in the middle part of each vertical mounting plate. Conveying sliding holes are recessed at both ends of the vertical mounting plates. A conveying driven sliding rod is slidably arranged in each conveying sliding hole. The two ends of the two conveying mounting cross plates are respectively installed on the top end of four conveying driven sliding rods. A threaded rod is rotatably arranged in the middle part of the bottom surface of each conveying mounting cross plate. The middle part of the threaded rod is arranged in the threaded hole. The two ends of the bottom surface of the conveying adjustment bar are respectively connected to the top surfaces of the two conveying mounting cross plates. A plurality of electric conveying wheels are arranged at intervals on the top surface of the conveying adjustment bar along the length direction.

[0006] As a further improvement of the present invention, the external debris removal component includes two transverse adjustment rails, an external debris removal slide plate, an external debris removal adjustment cylinder and two debris removal grinding rollers. The two transverse adjustment rails are respectively installed at intervals along the length direction at one end of the cutting table adjacent to the steel pipe temporary storage rack, and the length direction of the transverse adjustment rails is perpendicular to the length direction of the cutting table. The two ends of the bottom surface of the external debris removal slide plate are respectively slidably installed on the two transverse adjustment rails, the external debris removal adjustment cylinder is installed on the inner side of one end of the steel pipe temporary storage rack adjacent to the top surface of the cutting table, and the output shaft of the external debris removal adjustment cylinder is connected to the external debris removal slide plate, and the bottom ends of the two debris removal grinding rollers are respectively rotatably installed on the outer side of the top surface of the external debris removal slide plate.

[0007] As a further improvement of the present invention, the stabilizing conveying assembly includes a rotating motor, a stabilizing conveying turntable, a conveying centering mounting disk and four conveying centering elements. The rotating motor is installed on the inner side of the middle part of the top surface of the cutting table, the stabilizing conveying turntable is installed on the outer side of the middle part of the top surface of the cutting table, the conveying centering mounting disk is rotatably installed in the stabilizing conveying turntable, a rotating ring is convexly provided on the outer wall of the conveying centering mounting disk away from the steel pipe temporary storage rack, a conveyor belt is sleeved between the rotating ring and the output shaft of the rotating motor to realize transmission connection, a first annular cavity is formed in the interior of the conveying centering mounting disk, and four first annular cavities are arranged at intervals in the circumferential direction adjacent to one end of the steel pipe temporary storage rack. A gear shaft and four first drive shafts, the first annular cavity is adjacent to one end of the steel pipe temporary storage rack and is recessed with four first rotating mounting holes at intervals along the circumferential direction, and the first rotating mounting hole is arranged adjacent to the first gear shaft, the conveying centering mounting plate is adjacent to one end of the steel pipe temporary storage rack and is recessed with four first centering mounting grooves at intervals along the circumferential direction, each first centering mounting groove is provided with a centering mounting rail, and a first connecting groove is recessed at the bottom of one side of the centering mounting rail, so that the first rotating mounting hole is connected with the internal cavity of the centering mounting rail, and the four conveying centering elements are respectively installed in the four first gear shafts, the four first drive shafts and the four centering mounting rails.

[0008] As a further improvement of the present invention, each conveying centering element includes a first conveying gear, a conveying adjustment motor, a conveying shaft, two second gears, a first slide bar, a conveying centering block and a first rotating column, the first conveying gear is rotatably installed in the first gear shaft, a first connecting shaft is convexly provided on the outer edge of the first conveying gear, one end of the conveying adjustment motor is rotatably installed in the first driving shaft, the output shaft of the conveying adjustment motor is rotatably connected with the first connecting shaft, the middle part of the conveying shaft is rotatably installed on the outer end of the first rotating mounting hole, the two second gears are respectively installed at both ends of the conveying shaft, and one of the second gears is meshed with the first conveying gear, and the other second gear is rotatably arranged in the first rotating mounting hole, the first slide bar is slidably installed in the inner cavity of the centering mounting slide rail, and a first straight rack is convexly provided on one side of the first slide bar, the first straight rack is meshed with the second gear located in the first rotating mounting hole, a first mounting block is convexly provided at the outer end of the first slide bar, a holding roller is convexly provided at the outer end of the bottom surface of the first mounting block, the conveying centering block is installed at the outer end of the first mounting block, and the first rotating column is rotatably installed on the bottom surface of the conveying centering block.

[0009] As a further improvement of the present invention, the laser cutting assembly includes a cutting mounting frame, a cutting adjustment motor and a laser cutting knife. The cutting mounting frame is installed on the top surface of the cutting table adjacent to one end of the transfer storage box and adjacent to the stabilizing conveying turntable. The cutting adjustment motor is installed on the top outer side of the cutting mounting frame, and the laser cutting knife is installed at the bottom of the cutting adjustment motor.

[0010] As a further improvement of the present invention, the centering clamping assembly includes two centering adjustment slides, a centering adjustment cylinder, a centering clamping adjustment table, a centering clamping plate, an air guide element and four centering clamping elements. The two centering adjustment slides are respectively installed at intervals along the width direction on the outer side of one end of the transfer storage box adjacent to the top surface of the cutting table, and the two sides of the bottom of the centering adjustment cylinder are respectively installed at one end of the transfer storage box adjacent to the two centering adjustment slides. The two sides of the bottom of the centering clamping adjustment table are respectively slidably installed in the two centering adjustment slides, and the output shaft of the centering adjustment cylinder is rotatably connected to the centering clamping adjustment table, and the centering clamping plate is rotatably installed on the top of the centering clamping adjustment table. The centering clamping plate is hollow inside to form a second annular cavity, and four second gears are arranged at intervals along the circumferential direction on the inner end of the second annular cavity. The cam is provided with a plurality of second gear shafts, each of which is provided with a plurality of second gear shafts, and the plurality of second gear shafts are provided with a plurality of second gear shafts.

[0011] As a further improvement of the present invention, the air guide element includes an air outlet outer cylinder, an air guide inner cylinder and four inclined arc-shaped air guide plates. The air outlet outer cylinder is installed at the middle part of the inner end of the centering clamping disk. The outer end of the air outlet outer cylinder is recessed with four preset passing grooves along the circumferential direction. The inner wall of the air outlet outer cylinder is recessed with multiple inner cylinder mounting columns along the circumferential direction. The inner wall of the air outlet outer cylinder is recessed with four ventilation grooves along the circumferential direction. The outer wall of the air guide inner cylinder is installed in multiple inner cylinder mounting columns, and a conical air guide cover is provided on the inner side of the air guide inner cylinder. Four air guide mounting turntables are protruded along the circumferential direction on the outer side of the air guide inner cylinder. The four inclined arc-shaped air guide plates are respectively installed in the four air guide mounting turntables by torsion springs.

[0012] As a further improvement of the present invention, each centering clamping element includes a second conveying gear, a clamping cylinder, a clamping shaft, two third gears, a second slide bar, a clamping head and a support air guide arc tube. The second conveying gear is rotatably installed in the second gear shaft. A second shaft is protruding on the outer edge of the second conveying gear. One end of the clamping cylinder is rotatably installed in the second driving shaft. The output shaft of the clamping cylinder is rotatably connected to the second shaft. The middle part of the clamping shaft is rotatably installed at the outer end of the second rotating mounting hole. The two third gears are respectively installed at both ends of the clamping shaft, and one of the third gears is meshed and connected with the second conveying gear. The other third gear is rotatably set in the second rotating mounting hole. The second slide bar The cam is provided with a second gear which is engaged with the first gear and the second gear is engaged with the first gear in the cam hole.

[0013] Provided is a construction steel pipe laser cutting process, which is applied to the above-mentioned construction steel pipe laser cutting equipment, and the process includes:

[0014] Step S1: placing the construction steel pipes in a steel pipe temporary storage rack, and making one of the construction steel pipes slide onto a plurality of electric conveying wheels of two conveying adjustment bars;

[0015] Step S2: Synchronously start a plurality of electric conveying wheels to drive the construction steel pipes placed therein to move toward one end of the transfer storage box;

[0016] Step S3: When one end of the construction steel pipe moves to the stabilization conveying assembly, the four conveying adjustment motors will be started synchronously until the outer wall of the first rotating column and the outer wall of the supporting roller are pressed against the outer wall of the construction steel pipe, and the construction steel pipe is initially centered and clamped;

[0017] Step S4: Start the outer impurity removal regulating cylinder so that the outer walls of the two impurity removal grinding rollers are attached to the outer wall of the building steel pipe to grind and remove impurities from the outer wall of the building steel pipe;

[0018] Step S5: When one end of the building steel pipe moves to the centering clamping assembly, the four clamping cylinders will be started synchronously, so that the four clamping heads are all against the building steel pipe, and the building steel pipe is further centering, clamped and fixed;

[0019] Step S6: Start the laser cutting knife to perform laser cutting on the building steel pipe.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The present invention can stably center and clamp the construction steel pipe during the cutting process, thereby ensuring that the position of the laser beam and the surface of the steel pipe is accurately corresponding during cutting, thereby improving the cutting quality and production efficiency, reducing the complexity and labor intensity of manual operation, and also ensuring the stability and accuracy of the cutting quality. In addition, while being able to provide grinding and impurity removal for the outer wall of the construction steel pipe, the inner wall of the construction steel pipe can be cleaned and preheated to a uniform temperature, ensuring cleanliness during cutting, reducing foreign matter and impurities, and minimizing their impact on the cutting quality.

[0022] 2. The present invention can make adaptive adjustments according to the diameter of the construction steel pipe to be cut, so as to ensure stable centering and clamping, and at the same time, can effectively clean and preheat the inner wall of the construction steel pipe, reduce the thermal stress caused by the sudden influence of high-temperature heat source during cutting, improve the cutting quality, and make the cutting temperature evenly distributed, so as to prevent the large heat-affected area during laser cutting due to the large thickness of the construction steel pipe, resulting in serious deformation of the cutting edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present invention.

[0024] Figure 2 FIG. 4 is a broken view of a frame assembly according to an embodiment of the present invention.

[0025] Figure 3 It is a three-dimensional schematic diagram of a cutting table, an external impurity removal assembly, a stabilization conveying assembly, a laser cutting assembly and a centering clamping assembly in one embodiment of the present invention.

[0026] Figure 4 It is a three-dimensional schematic diagram of a centering clamping plate, an air guide element and four centering clamping elements in one embodiment of the present invention.

[0027] Figure 5 Schematic diagram of the interior of a centering clamping plate, an air guide element and four centering clamping elements in one embodiment of the present invention.

[0028] Figure 6 It is a three-dimensional schematic diagram of a centering clamping element after removing the air guide arc tube in one embodiment of the present invention.

[0029] Figure 7 It is a partial three-dimensional schematic diagram of a centering clamping assembly in one embodiment of the present invention.

[0030] Figure 8 Schematic diagram of part of the interior of a centering clamping assembly in one embodiment of the present invention.

[0031] Fig. 9 It is a three-dimensional schematic diagram of a conveying centering mounting plate and four conveying centering elements in one embodiment of the present invention.

[0032] Fig.10 It is a schematic diagram of the interior of the conveying centering mounting plate and four conveying centering elements in one embodiment of the present invention.

[0033] Fig.11 It is a schematic diagram of the interior of a conveying centering mounting plate and four conveying centering elements in another embodiment of the present invention.

[0034] In the figure:

[0035] 10. Frame assembly; 11. Temporary steel pipe storage rack; 12. Cutting table; 13. Transfer storage box; 14. Conveying element; 15. Construction steel pipe; 131. Short pipe blanking ramp; 132. Short pipe blanking trough; 141. Vertical mounting plate; 142. Conveying mounting horizontal plate; 143. Conveying adjustment strip; 144. Conveying driven slide bar; 145. Threaded rod; 146. Electric conveying wheel; 20. External debris removal assembly; 21. Lateral adjustment slide rail; 22. External debris removal slide plate; 23. External debris removal adjustment cylinder; 24. Debris removal grinding roller; 30. Stabilization conveying assembly; 31. Rotating motor; 32. Stabilizing conveying turntable; 331. Conveying centering mounting plate; 34. Conveying centering element; 332. Rotating ring; 333. Conveying belt; 334. First annular cavity; 335. First gear shaft; 336. First driving shaft; 338. First centering mounting groove; 339. Centering mounting slide rail; 330. First connecting groove; 341. First conveying gear; 342. Conveying adjustment motor; 343. Conveying shaft; 344. Second gear; 345. First slide bar; 346. Conveying centering block; 347. First rotating column; 348. First connecting shaft; 349. First mounting block; 340, holding roller; 40, laser cutting assembly; 41, cutting mounting frame; 42, cutting adjustment motor; 43, laser cutting knife; 50, centering clamping assembly; 51, centering adjustment slide column; 52, centering adjustment cylinder; 53, centering clamping adjustment platform; 54, centering clamping plate; 55, air guide element; 56, centering clamping element; 541, second annular cavity; 542, second gear shaft; 543, second driving shaft; 545, second centering mounting groove; 546, clamping mounting slide rail; 547, second connecting groove; 548, first air inlet; 5 49. Second air inlet hole; 551. Outer air cylinder; 552. Inner air guide cylinder; 553. Inclined arc-shaped air guide plate; 554. Conical air guide cover; 555. Air guide mounting turntable; 556. Preset through slot; 557. Ventilation slot; 561. Second conveying gear; 562. Clamping cylinder; 563. Clamping shaft; 564. Third gear; 565. Second slide bar; 566. Clamping head; 567. Abutting air guide arc-shaped tube; 570. Second shaft; 568. Second spur rack; 569. Rough surface; 560. Abutting block; 571. Through slot; 572. Air guide arc-shaped plate. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0037] In the description of the present invention, it should be noted that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] See also Figures 1 to 11 A construction steel pipe laser cutting device includes a frame assembly 10, an external impurity removal assembly 20, a stabilization conveying assembly 30, a laser cutting assembly 40 and a centering clamping assembly 50. The frame assembly 10 includes a steel pipe temporary storage rack 11, a cutting table 12, a transfer storage box 13 and two conveying elements 14. The steel pipe temporary storage rack 11 is installed at one end of the ground of the construction site, and a plurality of construction steel pipes 15 are placed on the top of the steel pipe temporary storage rack 11. The cutting table 12 is installed in the middle of the ground of the construction site, and the transfer storage box 13 is installed at the other end of the ground of the construction site. The cutting table 12 is adjacent to the transfer storage box 13. A short tube blanking ramp 131 is provided at one end, and a short tube blanking trough 132 is recessed at one end of the top surface of the cutting table 12 adjacent to the transfer storage box 13, and the short tube blanking trough 132 is located directly above the short tube blanking ramp 131. Two conveying elements 14 are respectively installed at both ends of the steel tube temporary storage rack 11, the external impurity removal component 20 is installed at one end of the cutting table 12 adjacent to the steel tube temporary storage rack 11, the stabilization conveying component 30 is installed in the middle of the cutting table 12, the laser cutting component 40 and the centering clamping component 50 are both installed at the other end of the cutting table 12, and the laser cutting component 40 is arranged adjacent to the stabilization conveying component 30.

[0040] For example, in one embodiment: a first temporary storage box is provided at the bottom of the short tube blanking chute 132 to collect the cut steel tubes, and when the first temporary storage box is full, the first temporary storage box can be manually moved to transfer the cut steel tubes therein to the transfer storage box 13.

[0041] Each conveying element 14 includes two vertical mounting plates 141, two conveying mounting transverse plates 142 and a conveying adjustment bar 143. The two vertical mounting plates 141 are respectively mounted on the middle part of the outer side of the steel pipe temporary storage rack 11 along the length direction. A threaded hole is recessed in the middle part of each vertical mounting plate 141. Conveying sliding holes are recessed at both ends of the vertical mounting plates 141. A conveying driven sliding rod 144 is slidably arranged in each conveying sliding hole. The two ends of the two conveying mounting transverse plates 142 are respectively mounted on the top of four conveying driven sliding rods 144. A threaded rod 145 is rotatably arranged in the middle part of the bottom surface of each conveying mounting transverse plate 142. The middle part of the threaded rod 145 is arranged in the threaded hole. The two ends of the bottom surface of the conveying adjustment bar 143 are respectively connected to the top surfaces of the two conveying mounting transverse plates 142. A plurality of electric conveying wheels 146 are arranged at intervals on the top surface of the conveying adjustment bar 143 along the length direction.

[0042] The external debris removal component 20 includes two transverse adjustment rails 21, an external debris removal slide plate 22, an external debris removal adjustment cylinder 23 and two debris removal grinding rollers 24. The two transverse adjustment rails 21 are respectively installed at intervals along the length direction at one end of the cutting table 12 adjacent to the steel pipe temporary storage rack 11, and the length direction of the transverse adjustment rails 21 is perpendicular to the length direction of the cutting table 12. The two ends of the bottom surface of the external debris removal slide plate 22 are respectively slidably installed on the two transverse adjustment rails 21. The external debris removal adjustment cylinder 23 is installed on the inner side of one end of the top surface of the cutting table 12 adjacent to the steel pipe temporary storage rack 11, and the output shaft of the external debris removal adjustment cylinder 23 is connected to the external debris removal slide plate 22. The bottom ends of the two debris removal grinding rollers 24 are respectively rotatably installed on the outer side of the top surface of the external debris removal slide plate 22.

[0043] The stabilizing conveying assembly 30 includes a rotating motor 31, a stabilizing conveying turntable 32, a conveying centering mounting plate 331 and four conveying centering elements 34. The rotating motor 31 is installed on the inner side of the middle part of the top surface of the cutting table 12, and the stabilizing conveying turntable 32 is installed on the outer side of the middle part of the top surface of the cutting table 12. The conveying centering mounting plate 331 is rotatably installed in the stabilizing conveying turntable 32. A rotating ring 332 is convexly provided at one end of the outer wall of the conveying centering mounting plate 331 away from the steel pipe temporary storage rack 11. A conveyor belt 333 is sleeved between the rotating ring 332 and the output shaft of the rotating motor 31 to realize transmission connection. The interior of the conveying centering mounting plate 331 is hollow to form a first annular cavity 334. The first annular cavity 334 is adjacent to one end of the steel pipe temporary storage rack 11 and is provided with four first gear shafts spaced apart in the circumferential direction. 335 and four first driving shafts 336, the first annular cavity 334 is adjacent to one end of the steel pipe temporary storage rack 11 and is recessed with four first rotating mounting holes at intervals along the circumferential direction, and the first rotating mounting hole is arranged adjacent to the first gear shaft 335, the conveying centering mounting plate 331 is adjacent to one end of the steel pipe temporary storage rack 11 and is recessed with four first centering mounting grooves 338 at intervals along the circumferential direction, each first centering mounting groove 338 is provided with a centering mounting slide rail 339, and a first connecting groove 330 is recessed at the bottom of one side of the centering mounting slide rail 339, so that the first rotating mounting hole is connected to the internal cavity of the centering mounting slide rail 339, and the four conveying centering elements 34 are respectively installed in the four first gear shafts 335, the four first driving shafts 336 and the four centering mounting slide rails 339.

[0044] Each conveying centering element 34 includes a first conveying gear 341, a conveying adjustment motor 342, a conveying shaft 343, two second gears 344, a first slide bar 345, a conveying centering block 346 and a first rotating column 347. The first conveying gear 341 is rotatably mounted in the first gear shaft 335. A first connecting shaft 348 is protruded from the outer edge of the first conveying gear 341. One end of the conveying adjustment motor 342 is rotatably mounted in the first driving shaft 336. The output shaft of the conveying adjustment motor 342 is rotatably connected to the first connecting shaft 348. The middle part of the conveying shaft 343 is rotatably mounted on the outer end of the first rotating mounting hole. The two second gears 344 are respectively mounted on the conveying shaft. 343 at both ends, and one of the second gears 344 is meshed and connected with the first conveying gear 341, and the other second gear 344 is rotatably set in the first rotating mounting hole, the first slide bar 345 is slidably installed in the internal cavity of the centering mounting slide rail 339, and a first straight rack is convexly provided on one side of the first slide bar 345, and the first straight rack is meshed and connected with the second gear 344 located in the first rotating mounting hole, a first mounting block 349 is convexly provided at the outer end of the first slide bar 345, and a supporting roller 340 is convexly provided at the outer end of the bottom surface of the first mounting block 349, a conveying centering block 346 is installed at the outer end of the first mounting block 349, and a first rotating column 347 is rotatably installed on the bottom surface of the conveying centering block 346.

[0045] The laser cutting assembly 40 includes a cutting mounting frame 41, a cutting adjustment motor 42 and a laser cutting knife 43. The cutting mounting frame 41 is installed on the top surface of the cutting table 12 adjacent to one end of the transfer storage box 13 and adjacent to the stabilizing conveying turntable 32. The cutting adjustment motor 42 is installed on the top outer side of the cutting mounting frame 41, and the laser cutting knife 43 is installed on the bottom of the cutting adjustment motor 42.

[0046] The centering clamping assembly 50 includes two centering adjustment slides 51, a centering adjustment cylinder 52, a centering clamping adjustment platform 53, a centering clamping plate 54, an air guide element 55 and four centering clamping elements 56. The two centering adjustment slides 51 are respectively installed at intervals along the width direction on the outer side of one end of the transfer storage box 13 near the top surface of the cutting table 12, the two sides of the bottom of the centering adjustment cylinder 52 are respectively installed at one end of the transfer storage box 13 near the two centering adjustment slides 51, the two sides of the bottom of the centering clamping adjustment platform 53 are respectively slidably installed in the two centering adjustment slides 51, and the output shaft of the centering adjustment cylinder 52 is rotatably connected to the centering clamping adjustment platform 53, the centering clamping plate 54 is rotatably installed on the top of the centering clamping adjustment platform 53, the centering clamping plate 54 is hollow inside to form a second annular cavity 541, and the inner end of the second annular cavity 541 is spaced apart along the circumferential direction. Four second gear shafts 542 and four second drive shafts 543 are arranged at intervals. 43. Four second rotating mounting holes are recessed at intervals along the circumferential direction at the inner end of the second annular cavity 541, and four second centering mounting grooves 545 are recessed at intervals along the circumferential direction at the inner end of the centering clamping disk 54. A clamping mounting slide rail 546 is arranged in each second centering mounting groove 545. A second connecting groove 547 is recessed at the bottom of one side of the clamping mounting slide rail 546, so that the second rotating mounting hole is connected with the inner cavity of the clamping mounting slide rail 546. A first air inlet hole 548 is recessed at the outer wall of the second annular cavity 541, and a second air inlet hole 549 is recessed at the inner wall of the second annular cavity 541. A connecting pipe is protruded from the second air inlet hole 549, and the top of the connecting pipe is installed in the first air inlet hole 548. The outer end of the air guide element 55 is connected to the middle part of the inner end of the centering clamping disk 54, and the four centering clamping elements 56 are respectively installed in the four clamping mounting slide rails 546, the four second gear shafts 542 and the four second driving shafts 543.

[0047] The air guide element 55 includes an air outlet outer cylinder 551, an air guide inner cylinder 552 and four inclined arc-shaped air guide plates 553. The air outlet outer cylinder 551 is installed at the middle part of the inner end of the centering clamping plate 54. The outer end of the air outlet outer cylinder 551 is recessed with four preset through grooves 556 along the circumferential direction. The inner wall of the air outlet outer cylinder 551 is protruding with a plurality of inner cylinder mounting columns along the circumferential direction. The inner wall of the air outlet outer cylinder 551 is recessed with four ventilation grooves 557 along the circumferential direction. The outer wall of the air guide inner cylinder 552 is installed in a plurality of inner cylinder mounting columns, and a conical air guide cover 554 is provided on the inner side of the air guide inner cylinder 552. Four air guide mounting turntables 555 are protruding on the outer side of the air guide inner cylinder 552 along the circumferential direction. The four inclined arc-shaped air guide plates 553 are respectively installed in the four air guide mounting turntables 555 by rotation through torsion springs.

[0048] Each centering clamping element 56 includes a second conveying gear 561, a clamping cylinder 562, a clamping shaft 563, two third gears 564, a second slide bar 565, a clamping head 566 and a supporting air guide arc tube 567. The second conveying gear 561 is rotatably installed in the second gear shaft 542. A second shaft 570 is protruding on the outer edge of the second conveying gear 561. One end of the clamping cylinder 562 is rotatably installed in the second driving shaft 543. The output shaft of the clamping cylinder 562 is rotatably connected to the second shaft 570. The middle part of the clamping shaft 563 is rotatably installed at the outer end of the second rotating mounting hole. The two third gears 564 are respectively installed at both ends of the clamping shaft 563, and one of the third gears 564 is meshed and connected with the second conveying gear 561. The other third gear 564 is rotatably set in the second rotating mounting hole. The second slide bar 565 is slidably installed on the clamping The second slide bar 565 is installed in the inner cavity of the slide rail 546, and a second spur rack 568 is convexly provided on one side of the second slide bar 565, and the second spur rack 568 is meshed and connected with the third gear 564 located in the second rotating installation hole. The clamping head 566 is installed at the outer end of the second slide bar 565, and the top and bottom surfaces of the outer end of the clamping head 566 are formed with a rough surface 569. The outer end of the clamping head 566 is convexly provided with a supporting block 560, and the supporting block 560 is penetrated through a preset passage. The through groove 556 is abutted against the outer wall of the inclined arc-shaped air guide plate 553, and the air guide arc-shaped tube 567 is installed on the outer side of the centering clamping plate 54, and the four air guide arc-shaped tubes 567 are alternately arranged with the four clamping heads 566 respectively, and the inner wall of the air guide arc-shaped tube 567 is recessed with a through groove 571, and the through groove 571 is connected with the ventilation groove 557, and an air guide arc-shaped plate 572 is arranged at the outer end of the internal cavity of the air guide arc-shaped tube 567.

[0049] For example, in one embodiment: the centering clamping plate 54 is coaxial with the conveying centering mounting plate 331. The first air inlet 548 is connected to an external blowing device through a pipeline. A sealing film is convexly provided at one end of the centering clamping plate 54 adjacent to the transfer storage box 13. An electrically controlled switch valve is provided in the through groove 571, and a conductive arc sheet is provided at the outer end of the outer wall of each inclined arc-shaped air guide plate 553, and a conductive ring is provided at the outer end of the inner wall of the air outlet outer cylinder 551, and the conductive ring is electrically connected to the four electrically controlled switch valves.

[0050] The present invention also provides a construction steel pipe laser cutting process, which is applied to the construction steel pipe laser cutting equipment, and comprises the following steps:

[0051] Step S1: placing the construction steel pipes 15 in the steel pipe temporary storage rack 11, and making one of the construction steel pipes 15 slide onto the multiple electric conveying wheels 146 of the two conveying adjustment bars 143;

[0052] Step S2: Synchronously start a plurality of electric conveying wheels 146 to drive the construction steel pipes 15 placed therein to move toward one end of the transfer storage box 13;

[0053] Step S3: When one end of the construction steel pipe 15 moves to the stabilization conveying assembly 30, the four conveying adjustment motors 342 are started synchronously until the outer wall of the first rotating column 347 and the outer wall of the abutting roller 340 abut against the outer wall of the construction steel pipe 15, and the construction steel pipe 15 is initially centered and clamped;

[0054] Step S4: Start the outer impurity removal regulating cylinder 23, so that the outer walls of the two impurity removal grinding rollers 24 are attached to the outer wall of the building steel pipe 15, and the outer wall of the building steel pipe 15 is ground and impurities are removed;

[0055] Step S5: When one end of the construction steel pipe 15 moves to the centering clamping assembly 50, the four clamping cylinders 562 are started synchronously, so that the four clamping heads 566 are all against the construction steel pipe 15, and the construction steel pipe 15 is further centering, clamped and fixed;

[0056] Step S6: Start the laser cutting knife 43 to perform laser cutting on the construction steel pipe 15 .

[0057] For example, in one embodiment: before cutting, the two threaded rods 145 are rotated according to the diameter of the construction steel pipe 15 to be cut, so that the two conveying installation cross plates 142 are adjusted up and down accordingly, until the construction steel pipe 15 is roughly coaxial with the conveying centering installation plate 331. When it is necessary to cut the construction steel pipe 15, multiple construction steel pipes 15 are placed in the steel pipe temporary storage rack 11, and one of the construction steel pipes 15 slides onto the multiple electric conveying wheels 146 of the two conveying adjustment bars 143, and then the electric conveying wheels 146 are started to move the construction steel pipe 15 to one end of the transfer storage box 13. When one end of the construction steel pipe 15 moves to the stabilization conveying assembly 30, the four conveying adjustment motors 342 will be started synchronously to drive the first conveying gear 341 to rotate around the first gear shaft 335, so that the second gear 344 meshing therewith rotates, so that the conveying shaft 343 rotates accordingly, so that the other second gear 344 rotates accordingly, so that the first straight gear The first slide bar 345 moves along the centering installation slide rail 339, so that the conveying centering block 346 and the first installation block 349 move along, until the outer wall of the first rotating column 347 and the outer wall of the supporting roller 340 are in contact with the outer wall of the building steel pipe 15, and then the external impurity removal adjustment cylinder 23 is started, so that the output shaft of the external impurity removal adjustment cylinder 23 extends, so that the external impurity removal slide plate 22 slides outward along the two lateral adjustment slide rails 21 until the two impurity removal grinding rollers are in contact with each other. The outer wall of the column 24 is fitted to the outer wall of the construction steel pipe 15, thereby grinding and removing impurities from the outer wall of the construction steel pipe 15. At the same time, the rotating motor 31 will be started, thereby rotating the output shaft of the rotating motor 31, and the conveyor belt 333 is used to make the rotating ring 332 rotate synchronously, so that the conveying centering mounting plate 331 and the four conveying centering elements 34 rotate accordingly, thereby making the construction steel pipe 15 rotate accordingly, and then cooperating with the external impurity removal component 20 to grind and remove impurities from the outer wall of the construction steel pipe 15 in all aspects. At the same time, the construction steel pipe 15 will continue to move toward one end of the transfer storage box 13 under the continuous conveyance of the electric conveying wheel 146, until it moves to the centering clamping assembly 50, and the four clamping cylinders 562 will be started synchronously, so that the second conveying gear 561 rotates around the second gear shaft 542, so that the third gear 564 meshing therewith rotates, so that the clamping shaft 563 rotates, so that another third gear 564 rotates, so that the second spur rack 568 follows the movement, so that the second slide bar 565 follows the movement along the clamping installation slide rail 546, until the clamping head 566 abuts against the outer wall / inner wall of the construction steel pipe 15, clamps and fixes the construction steel pipe 15, and then ensures that the center position of the construction steel pipe 15 is fixed, and ensures that the position of the laser beam and the surface of the steel pipe during cutting accurately corresponds to ensure the cutting quality and production efficiency. Subsequently, the laser cutting knife 43 is started to evenly cut the construction steel pipe 15.

[0058] For example, in one embodiment: when the clamping cylinder 562 is started, the external blowing equipment will be started synchronously and blow out a uniform temperature clean airflow. The uniform temperature clean airflow will enter the internal cavity of the air outlet outer cylinder 551 along the first air inlet hole 548, the connecting pipe and the second air inlet hole 549, and will be guided and compressed by the conical guide cover 554 and the air guide inner cylinder 552 to accelerate the flow rate of the uniform temperature clean airflow and then flow out to purge the inner wall of the construction steel pipe 15 to remove possible loose impurities and eliminate impurities such as water vapor and oil on the surface of the material, thereby reducing defects such as pores and splashing generated during cutting. At the same time, the uniform temperature clean airflow has a higher temperature, which can preheat the construction steel pipe 15 and improve the cutting quality.

[0059] For example, in one embodiment: when the diameter of the building steel pipe 15 is smaller than the diameter of the air outlet outer cylinder 551, when the building steel pipe 15 moves to the centering clamping assembly 50, one end of the building steel pipe 15 adjacent to the transfer storage box 13 will be abutted against the outer side wall of the four abutting blocks 560, and then the clamping cylinder 562 is started, so that the second slide bar 565 follows the movement along the clamping installation slide rail 546, and when the clamping head 566 follows the movement, the abutting block 560 will also follow the movement. Since the abutting block 560 passes through the preset through groove 556 and abuts against the outer wall of the inclined arc-shaped air guide plate 553, the inclined arc-shaped air guide plate 553 is pushed to follow the movement, so that the uniform temperature clean airflow can enter the inner wall of the building steel pipe 15 with a smaller diameter to clean it.

[0060] When the radius of the building steel pipe 15 is larger than the radius of the air outlet outer cylinder 551 and smaller than the radius of the outer wall of the supporting air guide arc pipe 567, when the building steel pipe 15 moves to the centering clamping assembly 50, one end of the building steel pipe 15 adjacent to the transfer storage box 13 will be supported against the outer side wall of the supporting air guide arc pipe 567. When the building steel pipe 15 moves to the centering clamping assembly 50, one end of the building steel pipe 15 adjacent to the transfer storage box 13 will be supported against the outer side walls of the four supporting air guide arc pipes 567. Subsequently, the clamping cylinder 562 is started, so that the second slide bar 565 moves along the clamping installation slide rail 546, and when the clamping head 566 moves, the supporting block 560 will also move. Since the inclined arc air guide plate 553 is rotatably mounted on the air guide installation turntable 5 by a torsion spring 55, when the distance between the two relatively arranged abutting blocks 560 is greater than the diameter of the air outlet outer cylinder 551, the outer wall of the inclined arc-shaped air guide plate 553 will abut against the inner wall of the air outlet outer cylinder 551, so that the uniform temperature clean airflow cannot flow out from the air outlet outer cylinder 551, and the conductive arc-shaped sheet abuts against the conductive ring, and sends an electrical signal to the electric control switch valve, so that the electric control switch valve is started and the through groove 571 is opened, so that the uniform temperature clean airflow will enter the inner wall cavity of the abutting air guide arc tube 567 through the ventilation groove 557 and the through groove 571, and be guided by the air guide arc plate 572, and flow out from the abutting air guide arc tube 567, and then tangentially impact the inner wall of the larger building steel pipe 15, so as to clean and preheat the inner wall of the larger diameter building steel pipe 15 to a uniform temperature.

[0061] Installation process: install the steel pipe temporary storage rack 11 at one end of the construction site, install the cutting table 12 in the middle of the construction site, install the transfer storage box 13 at the other end of the construction site, install two conveying elements 14 at both ends of the steel pipe temporary storage rack 11, install two vertical mounting plates 141 at the middle of the outer side of the steel pipe temporary storage rack 11 along the length direction, install two conveying mounting cross plates 142 at both ends at the top of four conveying driven slide bars 144, and the middle of the threaded rod 145 is set in the threaded hole, and the two ends of the bottom surface of the conveying adjustment bar 143 are connected to the top surfaces of the two conveying mounting cross plates 142 respectively, and install two transverse adjustment rails 21 at intervals along the length direction at one end of the cutting table 12 adjacent to the steel pipe temporary storage rack 11, and the transverse adjustment rails 21 The length direction is perpendicular to the length direction of the cutting table 12, the two ends of the bottom surface of the external debris removal slide plate 22 are respectively slidably installed on the two horizontal adjustment slide rails 21, the external debris removal adjustment cylinder 23 is installed on the inner side of one end of the steel pipe temporary storage rack 11 adjacent to the top surface of the cutting table 12, and the output shaft of the external debris removal adjustment cylinder 23 is connected to the external debris removal slide plate 22, the bottom ends of the two debris removal grinding rollers 24 are respectively rotatably installed on the outer side of the top surface of the external debris removal slide plate 22, the rotating motor 31 is installed on the inner side of the middle part of the top surface of the cutting table 12, the stabilizing conveying turntable 32 is installed on the outer side of the middle part of the top surface of the cutting table 12, the conveying centering installation plate 331 is rotatably installed in the stabilizing conveying turntable 32, and the four conveying centering elements 34 are respectively installed on the four first gear shafts 335 and the four first driving shafts 33 6 and four centering installation rails 339, the first conveying gear 341 is rotatably installed in the first gear shaft 335, the outer edge of the first conveying gear 341 is convexly provided with a first connecting shaft 348, one end of the conveying adjustment motor 342 is rotatably installed in the first driving shaft 336, the output shaft of the conveying adjustment motor 342 is rotatably connected with the first connecting shaft 348, the middle part of the conveying shaft 343 is rotatably installed on the outer end of the first rotating installation hole, two second gears 344 are respectively installed at both ends of the conveying shaft 343, and one of the second gears 344 is meshed and connected with the first conveying gear 341, and the other second gear 344 is rotatably set in the first rotating installation hole, and the first slide bar 345 is slidably installed in the inner cavity of the centering installation rail 339, The first straight rack is meshed and connected with the second gear 344 located in the first rotating mounting hole, the conveying centering block 346 is installed on the outer end of the first mounting block 349, and the first rotating column 347 is rotatably installed on the bottom surface of the conveying centering block 346. The cutting mounting frame 41 is installed on the top surface of the cutting table 12 adjacent to one end of the transfer storage box 13 and adjacent to the stabilizing conveying turntable 32. The cutting adjustment motor 42 is installed on the top of the outer side of the cutting mounting frame 41, and the laser cutting knife 43 is installed on the bottom of the cutting adjustment motor 42. The two centering adjustment slide columns 51 are respectively installed at intervals along the width direction on the outer side of one end of the top surface of the cutting table 12 adjacent to the transfer storage box 13, and the two sides of the bottom of the centering adjustment cylinder 52 are respectively installed on the two centering adjustment slide columns 51 adjacent to one end of the transfer storage box 13.The two sides of the bottom of the centering clamping adjustment platform 53 are respectively slidably installed in the two centering adjustment sliding columns 51, and the output shaft of the centering adjustment cylinder 52 is rotatably connected to the centering clamping adjustment platform 53, the centering clamping plate 54 is rotatably installed on the top of the centering clamping adjustment platform 53, the air outlet outer cylinder 551 is installed in the middle of the inner end of the centering clamping plate 54, the outer wall of the air guide inner cylinder 552 is installed in multiple inner cylinder mounting columns, and the four inclined arc-shaped air guide plates 553 are respectively rotatably installed in the four air guide mounting turntables 555 through torsion springs, the second conveying gear 561 is rotatably installed in the second gear rotating shaft 542, one end of the clamping cylinder 562 is rotatably installed in the second driving rotating shaft 543, the output shaft of the clamping cylinder 562 is rotatably connected to the second rotating shaft 570, and the middle part of the clamping rotating shaft 563 is rotatably installed on the outer end of the second rotating mounting hole , two third gears 564 are respectively installed at both ends of the clamping shaft 563, and one of the third gears 564 is meshed and connected with the second conveying gear 561, and the other third gear 564 is rotatably set in the second rotating mounting hole, the second slide bar 565 is slidably installed in the inner cavity of the clamping mounting slide rail 546, and the second spur rack 568 is meshed and connected with the third gear 564 located in the second rotating mounting hole, the clamping head 566 is installed at the outer end of the second slide bar 565, and the abutting block 560 is passed through the preset through groove 556 to abut against the outer wall of the inclined arc-shaped air guide plate 553, and the abutting air guide arc tube 567 is installed on the outer side of the centering clamping disk 54, and the four abutting air guide arc tubes 567 are respectively arranged alternately with the four clamping heads 566, and the through groove 571 is connected with the ventilation groove 557. ,

[0062] The present invention can achieve:

[0063] 1. The present invention can stably center and clamp the construction steel pipe 15 during the cutting process, thereby ensuring that the position of the laser beam and the surface of the steel pipe are accurately corresponding during cutting, thereby improving the cutting quality and production efficiency, reducing the complexity and labor intensity of manual operation, and also ensuring the stability and accuracy of the cutting quality. In addition, while being able to provide grinding and impurity removal for the outer wall of the construction steel pipe 15, the inner wall of the construction steel pipe 15 can be cleaned and preheated to a uniform temperature, ensuring cleanliness during cutting, reducing foreign matter and impurities, and minimizing their impact on the cutting quality.

[0064] 2. The present invention can adjust and change the diameter of the construction steel pipe 15 to be cut as needed to ensure stable centering and clamping, while effectively cleaning and preheating the inner wall of the construction steel pipe 15 to a uniform temperature, thereby reducing the thermal stress caused by the sudden influence of high-temperature heat sources during cutting, improving the cutting quality, and making the cutting temperature evenly distributed, thereby preventing the large heat-affected area generated during laser cutting due to the large thickness of the construction steel pipe 15, resulting in serious deformation of the cutting edge.

[0065] The above-mentioned embodiments only express several embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A construction steel pipe laser cutting device, characterized in that: The invention comprises a frame assembly (10), an external impurity removal assembly (20), a stabilization conveying assembly (30), a laser cutting assembly (40) and a centering clamping assembly (50); the frame assembly (10) comprises a steel pipe temporary storage rack (11), a cutting table (12), a transfer storage box (13) and two conveying elements (14); the steel pipe temporary storage rack (11) is installed at one end of the ground of the construction site, and a plurality of construction steel pipes (15) are placed on the top of the steel pipe temporary storage rack (11); the cutting table (12) is installed in the middle of the ground of the construction site; the transfer storage box (13) is installed at the other end of the ground of the construction site; a short pipe drop is provided at one end of the cutting table (12) adjacent to the transfer storage box (13). A material chute (131), a short tube material trough (132) is recessed on the top surface of the cutting table (12) adjacent to one end of the transfer storage box (13), and the short tube material trough (132) is located directly above the short tube material chute (131), two conveying elements (14) are respectively installed at both ends of the steel tube temporary storage rack (11), an external impurity removal component (20) is installed on the cutting table (12) adjacent to one end of the steel tube temporary storage rack (11), a stabilization conveying component (30) is installed in the middle of the cutting table (12), a laser cutting component (40) and a centering clamping component (50) are both installed at the other end of the cutting table (12), and the laser cutting component (40) is arranged adjacent to the stabilization conveying component (30); The centering clamping assembly (50) comprises two centering adjustment slides (51), a centering adjustment cylinder (52), a centering clamping adjustment table (53), a centering clamping plate (54), an air guide element (55) and four centering clamping elements (56). The two centering adjustment slides (51) are respectively installed at intervals along the width direction on the outer side of one end of the top surface of the cutting table (12) adjacent to the transfer storage box (13), and the bottom sides of the centering adjustment cylinder (52) are respectively installed on the two centering adjustment slides (51) adjacent to the transfer storage box (13). At one end, both sides of the bottom of the centering clamping adjustment platform (53) are respectively slidably installed in two centering adjustment sliding columns (51), and the output shaft of the centering adjustment cylinder (52) is rotatably connected to the centering clamping adjustment platform (53), and the centering clamping plate (54) is rotatably installed on the top of the centering clamping adjustment platform (53). The centering clamping plate (54) is hollow inside to form a second annular cavity (541), and the inner end of the second annular cavity (541) is provided with four second gear shafts (542) and four second drive shafts at intervals along the circumferential direction. The inner end of the second annular cavity (541) is provided with four second rotating mounting holes at intervals along the circumferential direction, and the inner end of the centering clamping plate (54) is provided with four second centering mounting grooves (545) at intervals along the circumferential direction. A clamping mounting slide rail (546) is provided in each second centering mounting groove (545). A second connecting groove (547) is provided at the bottom of one side of the clamping mounting slide rail (546), so that the second rotating mounting hole is connected to the inner cavity of the clamping mounting slide rail (546). The second annular cavity (5 41) A first air inlet hole (548) is recessed on the outer wall, a second air inlet hole (549) is recessed on the inner wall of the second annular cavity (541), a connecting pipe is protruded from the second air inlet hole (549), the top end of the connecting pipe is installed in the first air inlet hole (548), the outer end of the air guide element (55) is connected to the middle part of the inner end of the centering clamping plate (54), and four centering clamping elements (56) are respectively installed in four clamping mounting slide rails (546), four second gear shafts (542) and four second driving shafts (543); The air guide element (55) comprises an air outlet outer cylinder (551), an air guide inner cylinder (552), and four inclined arc-shaped air guide plates (553); the air outlet outer cylinder (551) is mounted at the middle of the inner end of the centering clamping plate (54); the outer end of the air outlet outer cylinder (551) is provided with four preset through grooves (556) in a circumferential direction; the inner wall of the air outlet outer cylinder (551) is provided with a plurality of inner cylinder mounting columns in a circumferential direction; the inner wall of the air outlet outer cylinder (551) is provided with four ventilation grooves (557) in a circumferential direction; the outer wall of the air guide inner cylinder (552) is installed in the plurality of inner cylinder mounting columns; a conical air guide cover (554) is provided on the inner side of the air guide inner cylinder (552); four air guide mounting turntables (555) are provided on the outer side of the air guide inner cylinder (552) in a circumferential direction; and the four inclined arc-shaped air guide plates (553) are respectively rotatably mounted in the four air guide mounting turntables (555) via torsion springs; Each centering clamping element (56) comprises a second conveying gear (561), a clamping cylinder (562), a clamping shaft (563), two third gears (564), a second slide bar (565), a clamping head (566) and a supporting air guide arc tube (567); the second conveying gear (561) is rotatably mounted on the second gear shaft (542); a second shaft (570) is protruding from the outer edge of the second conveying gear (561); one end of the clamping cylinder (562) is rotatably mounted on the second driving shaft (542); In the rotating shaft (543), the output shaft of the clamping cylinder (562) is rotatably connected to the second rotating shaft (570), the middle part of the clamping rotating shaft (563) is rotatably mounted on the outer end of the second rotating mounting hole, two third gears (564) are respectively mounted on both ends of the clamping rotating shaft (563), and one of the third gears (564) is meshed and connected with the second conveying gear (561), and the other third gear (564) is rotatably set in the second rotating mounting hole, and the second slide bar (565) is slidably mounted on the clamping mounting hole. The second slide bar (565) is installed in the inner cavity of the slide rail (546), and a second spur rack (568) is convexly provided on one side of the second slide bar (565), and the second spur rack (568) is meshedly connected with the third gear (564) located in the second rotating installation hole, and the clamping head (566) is installed on the outer end of the second slide bar (565), and the top and bottom surfaces of the outer end of the clamping head (566) are both formed with a rough surface (569), and the outer end of the clamping head (566) is convexly provided with a holding block (560), and the holding block (560) is penetrated through a preset passage The through groove (556) is abutted against the outer wall of the inclined arc-shaped air guide plate (553); the abutting air guide arc-shaped tube (567) is installed on the outer side of the centering clamping plate (54), and the four abutting air guide arc-shaped tubes (567) are arranged alternately with the four clamping heads (566); the inner wall of the abutting air guide arc-shaped tube (567) is concavely provided with a through groove (571); the through groove (571) is communicated with the ventilation groove (557); and the outer end of the inner cavity of the abutting air guide arc-shaped tube (567) is provided with an air guide arc-shaped plate (572).

2. The construction steel pipe laser cutting equipment according to claim 1 is characterized in that: Each conveying element (14) comprises two vertical mounting plates (141), two conveying mounting transverse plates (142) and a conveying adjustment bar (143). The two vertical mounting plates (141) are respectively mounted on the middle part of the outer side of the steel pipe temporary storage rack (11) along the length direction. A threaded hole is recessed in the middle part of each vertical mounting plate (141). Conveying sliding holes are recessed at both ends of the vertical mounting plates (141). A conveying driven sliding rod (144) is slidably arranged in each conveying sliding hole. The two ends of the two conveying mounting transverse plates (142) are respectively mounted on the top ends of four conveying driven sliding rods (144). A threaded rod (145) is rotatably arranged in the middle part of the bottom surface of each conveying mounting transverse plate (142). The middle part of the threaded rod (145) is arranged in the threaded hole. The two ends of the bottom surface of the conveying adjustment bar (143) are respectively connected to the top surfaces of the two conveying mounting transverse plates (142). A plurality of electric conveying wheels (146) are arranged at intervals on the top surface of the conveying adjustment bar (143) along the length direction.

3. The construction steel pipe laser cutting equipment according to claim 2 is characterized in that: The external impurity removal component (20) comprises two transverse adjustment rails (21), an external impurity removal slide plate (22), an external impurity removal adjustment cylinder (23) and two impurity removal grinding rollers (24). The two transverse adjustment rails (21) are respectively installed at intervals along the length direction at one end of the cutting table (12) adjacent to the steel pipe temporary storage rack (11), and the length direction of the transverse adjustment rails (21) is perpendicular to the length direction of the cutting table (12). The two ends of the bottom surface of the external impurity removal slide plate (22) are respectively slidably installed on the two transverse adjustment rails (21). The external impurity removal adjustment cylinder (23) is installed on the inner side of the top surface of the cutting table (12) adjacent to the steel pipe temporary storage rack (11), and the output shaft of the external impurity removal adjustment cylinder (23) is connected to the external impurity removal slide plate (22). The bottom ends of the two impurity removal grinding rollers (24) are respectively rotatably installed on the outer side of the top surface of the external impurity removal slide plate (22).

4. The construction steel pipe laser cutting equipment according to claim 3 is characterized in that: The stabilizing conveying assembly (30) comprises a rotating motor (31), a stabilizing conveying turntable (32), a conveying centering installation disk (331) and four conveying centering elements (34). The rotating motor (31) is installed on the inner side of the middle part of the top surface of the cutting table (12). The stabilizing conveying turntable (32) is installed on the outer side of the middle part of the top surface of the cutting table (12). The conveying centering installation disk (331) is rotatably installed in the stabilizing conveying turntable (32). A rotating ring (332) is convexly provided at one end of the outer wall of the conveying centering installation disk (331) away from the steel pipe temporary storage rack (11). A conveyor belt (333) is sleeved between the rotating ring (332) and the output shaft of the rotating motor (31) to achieve transmission connection. The conveying centering installation disk (331) is hollow inside to form a first annular cavity (334). Four first annular cavities (334) are spaced apart in the circumferential direction at one end of the first annular cavity (334) adjacent to the steel pipe temporary storage rack (11). A gear shaft (335) and four first drive shafts (336); four first rotation mounting holes are recessed at intervals along the circumferential direction at one end of the first annular cavity (334) adjacent to the steel pipe temporary storage rack (11); and the first rotation mounting holes are arranged adjacent to the first gear shaft (335); four first centering mounting grooves (338) are recessed at intervals along the circumferential direction at one end of the conveying centering mounting plate (331) adjacent to the steel pipe temporary storage rack (11); a centering mounting slide rail (339) is arranged in each first centering mounting groove (338); a first connecting groove (330) is recessed at the bottom of one side of the centering mounting slide rail (339) so that the first rotation mounting holes are connected to the inner cavity of the centering mounting slide rail (339); and four conveying centering elements (34) are respectively installed in the four first gear shafts (335), the four first drive shafts (336) and the four centering mounting slide rails (339).

5. The construction steel pipe laser cutting equipment according to claim 4 is characterized in that: Each conveying centering element (34) comprises a first conveying gear (341), a conveying adjustment motor (342), a conveying shaft (343), two second gears (344), a first slide bar (345), a conveying centering block (346) and a first rotating column (347); the first conveying gear (341) is rotatably mounted in the first gear shaft (335); a first connecting shaft (348) is protruding from the outer edge of the first conveying gear (341); one end of the conveying adjustment motor (342) is rotatably mounted in the first driving shaft (336); an output shaft of the conveying adjustment motor (342) is rotatably connected to the first connecting shaft (348); a middle portion of the conveying shaft (343) is rotatably mounted on the outer end of the first rotating mounting hole; the two second gears (344) are respectively mounted on the conveying shafts (343) and the conveying shafts (343). Two ends of the rotating shaft (343), and one of the second gears (344) is meshed and connected with the first conveying gear (341), and the other second gear (344) is rotatably arranged in the first rotating mounting hole, the first slide bar (345) is slidably installed in the inner cavity of the centering mounting slide rail (339), and a first straight rack is convexly provided on one side of the first slide bar (345), and the first straight rack is meshed and connected with the second gear (344) located in the first rotating mounting hole, a first mounting block (349) is convexly provided at the outer end of the first slide bar (345), and a supporting roller (340) is convexly provided on the outer end of the bottom surface of the first mounting block (349), a conveying centering block (346) is installed at the outer end of the first mounting block (349), and a first rotating column (347) is rotatably installed on the bottom surface of the conveying centering block (346).

6. The construction steel pipe laser cutting equipment according to claim 5, characterized in that: The laser cutting assembly (40) comprises a cutting mounting frame (41), a cutting adjustment motor (42) and a laser cutting knife (43); the cutting mounting frame (41) is mounted on the top surface of the cutting table (12) adjacent to one end of the transfer storage box (13) and adjacent to the stabilization conveying turntable (32); the cutting adjustment motor (42) is mounted on the top of the outer side of the cutting mounting frame (41); and the laser cutting knife (43) is mounted on the bottom of the cutting adjustment motor (42).

7. A construction steel pipe laser cutting process, applied to the construction steel pipe laser cutting equipment as claimed in claim 6, characterized in that: The processing technology includes: Step S1: placing the construction steel pipes (15) in the steel pipe temporary storage rack (11), and allowing one of the construction steel pipes (15) to slide onto a plurality of electric conveying wheels (146) of two conveying adjustment bars (143); Step S2: Synchronously start a plurality of electric conveying wheels (146) to drive the construction steel pipes (15) placed therein to move toward one end of the transfer storage box (13); Step S3: When one end of the construction steel pipe (15) moves to the stabilizing conveying assembly (30), the four conveying adjustment motors (342) are started synchronously until the outer wall of the first rotating column (347) and the outer wall of the supporting roller (340) are in contact with the outer wall of the construction steel pipe (15), thereby performing preliminary centering and clamping on the construction steel pipe (15); Step S4: starting the external impurity removal regulating cylinder (23) so that the outer walls of the two impurity removal grinding rollers (24) are attached to the outer wall of the building steel pipe (15) to grind and remove impurities from the outer wall of the building steel pipe (15); Step S5: When one end of the building steel pipe (15) moves to the centering clamping assembly (50), the four clamping cylinders (562) are started synchronously, so that the four clamping heads (566) are all pressed against the building steel pipe (15), thereby further centering, clamping and fixing the building steel pipe (15); Step S6: Start the laser cutting knife (43) to perform laser cutting on the building steel pipe (15).

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