A laser cutting device for steel structure profiles

Abstract

The present invention belongs to the field of laser cutting devices, and specifically relates to a laser cutting device for steel structure profiles, including a processing table. A working groove is formed in the processing table. A moving frame is slidably connected to the top end of the processing table. A laser cutting part is slidably connected to the top end of the moving frame. The laser cutting head at the bottom end of the laser cutting part is located above the steel profile. The left and right sides of the steel profile are abutted against clamping blocks. One side of the clamping block away from the steel profile is fixedly connected to a bolt. The bolt is threadedly connected to a clamping ring. A rotating mechanism is arranged at the front end of the clamping ring. The rotating mechanism is used for flipping the steel profile. A supporting mechanism and a pushing mechanism are arranged inside the working groove. The supporting mechanism is used for supporting and fixing the steel profile; through the structural design of the rotating mechanism, the function of flipping the steel profile is realized, so as to facilitate the cutting process of the back surface of the steel profile.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting devices, and more particularly to a laser cutting device for steel structure profiles. Background Art

[0002] A laser cutting device utilizes a high-power density laser beam that has been focused and irradiates the surface of a workpiece. The high-heat laser can cause the material to reach its melting point, and the irradiated area is quickly melted or vaporized, thereby achieving the purpose of cutting. Currently, for the cutting and processing of steel structure profiles, laser cutting has gradually replaced manual cutting.

[0003] According to a laser cutting device for steel structure profiles proposed in the patent document CN202410531407.0, it includes a laser cutting device body. A sword grid assembly is installed on the laser cutting machine. The sword grid assembly is used to support the steel structure profile. The sword grid assembly includes a first component and a second component. Support components are installed at both ends of the sword grid assembly. The support components include an upper support part and a lower support part. It should be noted that the upper support part and the lower support part do not contact each other. A locking component for fixing the two together is installed between the sword grid assembly and the support components. A driving component is installed between the upper support part and the lower support part; by swapping the positions of the first component and the second component, the sword grid assembly can clean the parts while supporting the workpiece. The driving component drives the first component and the second component to rotate. The vibration generated when the sword grid assembly is cleaned by the cleaning device will not affect the support of the sword grid assembly for the workpiece.

[0004] However, in the above-mentioned laser cutting device for steel structure profiles, although the laser cutting head in the laser cutting device has a high degree of freedom, for some steel structure profiles such as square tubes, it is difficult for the laser cutting head to cut the back surface of the steel structure profile. The workpiece needs to be removed first and then flipped, and then processed by the laser cutting device, resulting in a low processing efficiency of the laser cutting device. Therefore, a laser cutting device for steel structure profiles is proposed to solve the above problems. Summary of the Invention

[0005] In order to solve the problem that in the above-mentioned laser cutting device for steel structure profiles, although the laser cutting head in the laser cutting device has a high degree of freedom, for some steel structure profiles such as square tubes, it is difficult for the laser cutting head to cut the back surface of the steel structure profile. The workpiece needs to be removed first and then flipped, and then processed by the laser cutting device, resulting in a low processing efficiency of the laser cutting device, the present invention proposes a laser cutting device for steel structure profiles.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A laser cutting device for a steel structure profile described in the present invention includes a processing table. A working groove is provided on the processing table. A moving frame is slidably connected to the top end of the processing table. A laser cutting part is slidably connected to the top end of the moving frame. The laser cutting head at the bottom end of the laser cutting part is located above the steel profile. The left and right sides of the steel profile are in contact with the clamping blocks. One side of the clamping block away from the steel profile is fixedly connected to a bolt. The bolt is threadedly connected to a clamping ring. A rotating mechanism is provided at the front end of the clamping ring. The rotating mechanism is used to flip the steel profile. A support mechanism and a pushing mechanism are provided inside the working groove. The support mechanism is used to support and fix the steel profile. The pushing mechanism is used to clean up the cut waste materials removed.

[0007] Preferably, the rotating mechanism includes a rotating ring. The rotating ring is fixedly connected to the front end of the clamping ring. A T-shaped clamping ring and a toothed ring are sleeved on the rotating ring. The T-shaped clamping ring is slidably connected inside a T-shaped clamping groove. The T-shaped clamping groove is provided on the inner wall of an arc-shaped notch. The arc-shaped notch is provided on a support plate. The inner wall of the arc-shaped notch does not contact the bottom end of the rotating ring. The support plate is fixedly connected to the front end of the processing table. The bottom end of the toothed ring meshes with a worm gear. The right side of the worm gear meshes with a worm. The bottom end of the worm is fixedly connected to the output shaft of a driving motor. The front end of the worm gear and the top end of the worm are rotatably connected to a fixed frame. The bottom end of the fixed frame is fixedly connected to the inner wall of the working groove.

[0008] Preferably, the support mechanism includes a gear. The radius of the gear is the same as that of the worm gear. The radius of the gear is half of the radius of the toothed ring. The front end of the gear is rotatably connected to the fixed frame. The rear end of the gear is sleeved on a convex block. The convex block is fixedly connected to the bottom end of the support plate. The rear end of the gear is fixedly connected to a rotating rod. Two sets of connecting frames are sleeved on the rotating rod. The connecting frames are rotatably connected to the rotating rod. One side of the connecting frame away from the rotating rod is fixedly connected to the inner wall of the working groove. The rear end of the rotating rod is fixedly connected to a rotating disk. A support rod is rotatably connected to the rear end of the rotating disk. The top end of the support rod is rotatably connected to the bottom end of a lifting plate. The side of the lifting plate does not contact the inner wall of the working groove. Three sets of sliding blocks are fixedly connected to the left and right sides of the lifting plate. The sliding blocks are slidably connected inside a sliding groove. The sliding groove is provided on the inner wall of the working groove. Two sets of pushing plates are slidably connected to the top end of the lifting plate. The top ends of the pushing plates are in contact with the bottom end of the steel profile.

[0009] Preferably, the pushing mechanism includes two sets of connecting blocks. The connecting blocks are fixedly connected to the bottom end of the pushing plate. The connecting blocks are slidably connected inside the movable slots. The movable slots are formed on the lifting plate. The connecting blocks are in contact with the inner wall of the movable slots. The bottom ends of the two sets of connecting blocks are respectively rotatably connected to the first connecting rod and the second connecting rod. The bottom ends of the first connecting rod and the second connecting rod are rotatably connected to the inner wall of the working slot. The first connecting rod and the second connecting rod are located at the rear end of the rotating disk. Through slots are formed on the left and right sides of the inner wall of the working slot.

[0010] Preferably, the pushing plate is designed in an L shape. The bottom end of the pushing plate does not contact the top end of the lifting plate. A long plate is fixedly connected to the bottom end of the pushing plate. The bottom end of the long plate contacts the top end of the lifting plate.

[0011] Preferably, fixing plates are fixedly connected to the front and rear sides of the lifting plate. The top end of the front fixing plate abuts against the bottom end of the steel profile.

[0012] Preferably, two sets of U-shaped slots are formed on the side of the fixing plate close to the pushing plate. A fixing rod is slidably connected inside the U-shaped slot. The fixing rod is inserted into the pushing plate. The fixing rod is fixedly connected to the pushing plate.

[0013] Preferably, multiple sets of cages are fixedly connected to the inner wall of the rotating ring. Rubber columns are rotatably connected to the cages. The rubber columns contact the surface of the steel profile.

[0014] Preferably, multiple sets of grooves are formed on the front and rear sides of the arc-shaped notch. Round blocks are rotatably connected to the grooves. The top ends of the round blocks contact the bottom end of the rotating ring.

[0015] Preferably, four sets of limiting blocks are fixedly connected to the top end of the inner wall of the working slot. The bottom ends of the limiting blocks abut against the top end of the lifting plate.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. Through the structural design of the rotating mechanism, the present invention realizes the function of flipping the steel profile to facilitate the cutting process on the back surface of the steel profile, solving the problem in the prior art that in a laser cutting device for a steel structure profile, although the laser cutting head in the laser cutting device has a high degree of freedom, for some steel structure profiles such as square pipes, it is difficult for the laser cutting head to cut the back surface of the steel structure profile. It is necessary to first remove the workpiece and then flip the workpiece, and then process it through the laser cutting device, resulting in a low processing efficiency of the laser cutting device, and improving the processing efficiency of the laser cutting device.

[0018] 2. Through the structural design of the support mechanism, the present invention realizes the function of supporting and fixing the bottom end of the steel profile, so that when the steel profile is processed by the laser cutting part, the steel profile can be kept stable, thereby ensuring the processing accuracy. At the same time, during the turning process of the steel profile, the lifting plate can move downward to ensure that there is no interference between the steel profile and the top end of the pushing plate when the steel profile is turned;

[0019] 3. Through the structural design of the pushing mechanism, the present invention realizes the function of facilitating the cleaning of the cutting waste falling on the surface of the lifting plate, solves the problem that the cutting waste falling during the cutting process of the laser cutting device will accumulate on the lifting plate, so as to keep the surface of the lifting plate clean and avoid the cutting waste affecting the normal operation of the laser cutting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 is a structural schematic diagram of the rotating mechanism of the present invention;

[0023] Figure 3 is a connection structural schematic diagram of the worm of the present invention;

[0024] Figure 4 is a structural schematic diagram of the support plate of the present invention;

[0025] Figure 5 is a sectional structural schematic diagram of the present invention;

[0026] Figure 6 is a connection structural schematic diagram of the bottom end of the lifting plate of the present invention;

[0027] Figure 7 is a connection structural schematic diagram of the pushing plate of the present invention;

[0028] Figure 8 is a structural schematic diagram of the bottom end of the processing table of the present invention.

[0029] In the figure: 1, processing table; 20, working groove; 21, laser cutting part; 22, clamping block; 23, bolt; 24, clamping ring; 25, T-shaped clamping ring; 26, toothed ring; 27, rotating ring; 28, rubber column; 29, cage; 30, support plate; 31, T-shaped card slot; 32, round block; 33, worm gear; 34, gear; 35, worm; 36, drive motor; 37, bump; 38, fixing frame; 39, rotating rod; 40, connecting frame; 41, rotating disk; 42, support rod; 43, lifting plate; 44, slider; 45, chute; 46, through groove; 47, pushing plate; 48, movable groove; 49, connecting block; 50, first connecting rod; 51, second connecting rod; 52, long plate; 53, fixing rod; 54, U-shaped groove; 55, fixing plate; 56, limiting block; 57, moving frame; 58, steel profile; 59, groove; 60, arc notch. Detailed implementation mode

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment 1

[0032] Please refer to Figure 1 - Figure 8 As shown, a laser cutting device for steel structural profiles includes a processing table 1. A working groove 20 is opened on the processing table 1. A moving frame 57 is slidably connected to the top end of the processing table 1. A laser cutting part 21 is slidably connected to the top end of the moving frame 57. The laser cutting head at the bottom end of the laser cutting part 21 is located above the steel profile 58. The left and right sides of the steel profile 58 are in contact with the clamping blocks 22. One side of the clamping block 22 away from the steel profile 58 is fixedly connected to a bolt 23. The bolt 23 is threadedly connected to a clamping ring 24. A rotating mechanism is provided at the front end of the clamping ring 24. The rotating mechanism is used to flip the steel profile 58. A support mechanism and a pushing mechanism are arranged inside the working groove 20. The support mechanism is used to support and fix the steel profile 58. The pushing mechanism is used to clean the cut waste.

[0033] Further, the rotating mechanism includes a rotating ring 27, which is fixedly connected to the front end of the clamping ring 24. A T-shaped clamping ring 25 and a toothed ring 26 are sleeved on the rotating ring 27. The T-shaped clamping ring 25 is slidably connected inside a T-shaped clamping groove 31, and the T-shaped clamping groove 31 is opened on the inner wall of an arc-shaped notch 60. The arc-shaped notch 60 is opened on a support plate 30, and the inner wall of the arc-shaped notch 60 does not contact the bottom end of the rotating ring 27. The support plate 30 is fixedly connected to the front end of the processing table 1. The bottom end of the toothed ring 26 meshes with a worm gear 33, the right side of the worm gear 33 meshes with a worm 35, the bottom end of the worm 35 is fixedly connected to the output shaft of a driving motor 36, and the front end of the worm gear 33 and the top end of the worm 35 are both rotatably connected to a fixing frame 38. The bottom end of the fixing frame 38 is fixedly connected to the inner wall of a working groove 20;

[0034] Further, the supporting mechanism includes a gear 34. The gear 34 and the worm gear 33 have the same radius, and the radius of the gear 34 is half of the radius of the toothed ring 26. The front end of the gear 34 is rotatably connected to the fixing frame 38, the rear end of the gear 34 is sleeved on a convex block 37, and the convex block 37 is fixedly connected to the bottom end of the support plate 30. The rear end of the gear 34 is fixedly connected to a rotating rod 39. Two sets of connecting frames 40 are sleeved on the rotating rod 39. The connecting frames 40 are rotatably connected to the rotating rod 39. The side of the connecting frame 40 away from the rotating rod 39 is fixedly connected to the inner wall of the working groove 20. The rear end of the rotating rod 39 is fixedly connected to a rotating disk 41. A support rod 42 is rotatably connected to the rear end of the rotating disk 41. The top end of the support rod 42 is rotatably connected to the bottom end of a lifting plate 43. The side of the lifting plate 43 does not contact the inner wall of the working groove 20. Three sets of sliding blocks 44 are fixedly connected to the left and right sides of the lifting plate 43. The sliding blocks 44 are slidably connected inside sliding grooves 45, and the sliding grooves 45 are opened on the inner wall of the working groove 20. Two sets of pushing plates 47 are slidably connected to the top end of the lifting plate 43, and the top ends of the pushing plates 47 abut against the bottom end of a steel profile 58;

[0035] Further, the pushing mechanism includes two connecting blocks 49, which are fixedly connected to the bottom end of the pushing plate 47. The connecting blocks 49 are slidably connected inside an activity groove 48, and the activity groove 48 is opened on the lifting plate 43. The connecting blocks 49 keep contacting the inner wall of the activity groove 48. The bottom ends of the two connecting blocks 49 are respectively rotatably connected to a first connecting rod 50 and a second connecting rod 51. The bottom ends of the first connecting rod 50 and the second connecting rod 51 are rotatably connected to the inner wall of the working groove 20. The first connecting rod 50 and the second connecting rod 51 are located at the rear end of the rotating disk 41. Through grooves 46 are opened on the left and right sides of the inner wall of the working groove 20;

[0036] During operation, through the structural design of the rotating mechanism, the flipping of the steel profile 58 is realized, so as to facilitate the function of cutting the back surface of the steel profile 58. By flipping the steel profile 58, it is convenient for the laser cutting head at the bottom of the laser cutting unit 21 to cut the back surface of the steel profile 58 without removing the steel profile 58. First, the driving motor 36 drives the worm 35 to rotate. The worm 35 meshes with the worm gear 33, thereby driving the worm gear 33 to rotate. The top of the worm gear 33 is also in mesh with the gear ring 26. Therefore, the gear ring 26 can rotate driven by the worm gear 33. The gear ring 26 is sleeved on the rotating ring 27, and the rotating ring 27 is connected to the clamping ring 24. Therefore, the steel profile 58 fixed inside the clamping ring 24 can be flipped. The two sides of the steel profile 58 are fixed inside the clamping ring 24 by abutting against the clamping blocks 22. The clamping and fixing of the steel profile 58 can be released by rotating the bolt 23. The rotating ring 27 rotates on the support plate 30 through the T-shaped clamping ring 25 sleeved on the outside. Through the contact between the T-shaped clamping ring 25 and the inner wall of the T-shaped clamping groove 31, the normal rotation of the rotating ring 27 is ensured. The size of the arc-shaped notch 60 is slightly larger than that of the rotating ring 27 to ensure that the bottom end of the rotating ring 27 does not contact the inner wall of the arc-shaped notch 60 during the rotation process.

[0037] Through the structural design of the support mechanism, the function of supporting and fixing the bottom end of the steel profile 58 is realized, so that when the steel profile 58 is processed by the laser cutting part 21, the steel profile 58 can remain stable, thus ensuring the machining accuracy. At the same time, during the flipping process of the steel profile 58, the lifting plate 43 can move downward to ensure that there is no interference between the steel profile 58 and the top end of the pushing plate 47 during the flipping of the steel profile 58. During the flipping process of the steel profile 58, the bottom end of the worm wheel 33 drives the gear 34 to rotate through meshing with the gear 34. During the rotation of the gear 34, the rotating rod 39 connected to it will be driven to rotate. When the rotating rod 39 rotates, the rotating disk 41 will be driven to rotate synchronously. The rotating disk 41 is rotatably connected to the support rod 42. Therefore, when the rotating disk 41 rotates, the support rod 42 moves downward, thereby driving the lifting plate 43 to move downward to prevent the bottom end of the steel profile 58 from interfering with the top end of the pushing plate 47 when the steel profile 58 flips. When the bottom end of the support rod 42 moves downward to the lowest point, at this time, when the rotating disk 41 continues to rotate, the support rod 42 will move upward until the support rod 42 returns to its initial position. The radii of the worm wheel 33 and the gear 34 are the same, and the radius of the toothed ring 26 is twice that of the worm wheel 33 and the gear 34. When the rotating ring 27 drives the steel profile 58 to flip 180°, the gear 34 can rotate 360° to ensure that the bottom end of the flipped steel profile 58 can still be supported by the pushing plate 47. The gear 34 is sleeved on the convex block 37, and two sets of connecting frames 40 are sleeved on the rotating rod 39 to facilitate ensuring the stability of the rotating rod 39 during rotation. The side of the lifting plate 43 does not contact the inner wall of the working groove 20 to facilitate ensuring the smooth movement of the lifting plate 43 inside the working groove 20. Sliders 44 are fixed on the left and right sides of the lifting plate 43. The movement of the lifting plate 43 is limited by the sliding of the sliders 44 in the sliding grooves 45 to ensure that the lifting plate 43 can move up and down stably under the push of the support rod 42.

[0038] Through the structural design of the pushing mechanism, the function of facilitating the cleaning of the cutting waste falling on the surface of the lifting plate 43 is realized, and the problem that the cutting waste falling during the cutting process of the laser cutting device accumulates on the lifting plate 43 is solved, so as to keep the surface of the lifting plate 43 clean and avoid the cutting waste affecting the normal operation of the laser cutting device. During the process of the laser cutting head at the bottom of the laser cutting part 21 cutting and processing the steel section 58, the cutting waste will fall on the lifting plate 43. When the lifting plate 43 moves downward, the first connecting rod 50 and the second connecting rod 51 will push the pushing plate 47 to move to both sides. The moving directions of the two groups of pushing plates 47 are opposite. At this time, the cutting waste falling on the lifting plate 43 can be pushed to the left and right sides of the lifting plate 43 through the pushing plate 47, and the cutting waste is sent out through the through groove 46. Similarly, when the lifting plate 43 moves upward, the pushing plate 47 will return to its original position under the push of the first connecting rod 50 and the second connecting rod 51.

[0039] Furthermore, the pushing plate 47 is designed in an L shape. The bottom end of the pushing plate 47 does not contact the top end of the lifting plate 43. A long plate 52 is fixedly connected to the bottom end of the pushing plate 47, and the bottom end of the long plate 52 contacts the top end of the lifting plate 43;

[0040] During operation, the pushing plate 47 is designed in an L shape, so as to facilitate the pushing of the cutting waste on the lifting plate 43 when the pushing plate 47 moves on the lifting plate 43. And the bottom end of the pushing plate 47 does not contact the lifting plate 43, so as to reduce the friction when the pushing plate 47 moves. The long plate 52 fixed to the bottom end of the pushing plate 47 contacts the lifting plate 43, so as to scrape the welding spots on the lifting plate 43 through the long plate 52, so as to keep the surface of the lifting plate 43 smooth and avoid the welding spots from hindering the movement of the pushing plate 47.

[0041] Furthermore, fixing plates 55 are fixedly connected to both the front and rear sides of the lifting plate 43. The top end of the front fixing plate 55 abuts against the bottom end of the steel section 58;

[0042] During operation, the two groups of fixing plates 55 are fixed on the front and rear sides of the lifting plate 43, and the front fixing plate 55 also abuts against the bottom end of the steel section 58, so as to cooperate with the pushing plate 47 to support the bottom end of the steel section 58.

[0043] Furthermore, two U-shaped grooves 54 are opened on one side of the fixing plate 55 close to the pushing plate 47. A fixing rod 53 is slidably connected inside the U-shaped groove 54. The fixing rod 53 is inserted into the inside of the pushing plate 47, and the fixing rod 53 is fixedly connected to the pushing plate 47;

[0044] During operation, the fixed rod 53 inserted inside the pushing plate 47 slides in the U-shaped groove 54, so as to support the pushing plate 47 by the abutment between the fixed rod 53 and the inner wall of the U-shaped groove 54, making the supporting effect of the pushing plate 47 on the bottom end of the steel profile 58 better.

[0045] Furthermore, a plurality of cages 29 are fixedly connected to the inner wall of the rotating ring 27, and rubber columns 28 are rotatably connected to the cages 29, and the rubber columns 28 are in contact with the surface of the steel profile 58;

[0046] During operation, the steel profile 58 is supported by the rubber columns 28 rotating on the cages 29, so as to cooperate with the clamping ring 24 to ensure that the steel profile 58 can remain stable during the clamping process. At the same time, when the bolt 23 is turned to release the abutment of the clamping block 22 on the steel profile 58, the steel profile 58 can be smoothly withdrawn from the clamping ring 24 and the rotating ring 27 under the support of the rubber columns 28.

[0047] Embodiment 2

[0048] Please refer to Figure 1 and Figure 4 As shown, as another implementation manner of the present invention compared with Embodiment 1, a plurality of grooves 59 are provided on both the front and rear sides of the arc-shaped notch 60, and round blocks 32 are rotatably connected to the grooves 59, and the top ends of the round blocks 32 are in contact with the bottom end of the rotating ring 27;

[0049] During operation, a plurality of grooves 59 are provided on the arc-shaped notch 60. By the contact between the round blocks 32 rotating in the grooves 59 and the bottom end of the rotating ring 27, it is convenient for the rotating ring 27 to be more stable during rotation. At the same time, the round blocks 32 support the bottom end of the rotating ring 27, reducing the friction force of the rotating ring 27 during rotation, so that the rotating ring 27 will be smoother during rotation.

[0050] Four limiting blocks 56 are fixedly connected to the top end of the inner wall of the working groove 20, and the bottom ends of the limiting blocks 56 are in abutment with the top end of the lifting plate 43;

[0051] During operation, the bottom ends of the limiting blocks 56 are in abutment with the lifting plate 43, so as to limit the lifting plate 43 to ensure that the lifting plate 43 will not be pulled upward, and to prevent the support rod 42 from being damaged due to upward pulling.

[0052] 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 by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A laser cutting device for steel structure profiles, comprising a processing table (1), the processing table (1) being provided with a working groove (20), a moving frame (57) being slidably connected to the top of the processing table (1), a laser cutting unit (21) being slidably connected to the top of the moving frame (57), a laser cutting head at the bottom end of the laser cutting unit (21) being located above the steel profile (58), characterized in that: The left and right sides of the steel profile (58) are in contact with the clamping block (22); the side of the clamping block (22) away from the steel profile (58) is fixedly connected to the bolt (23); the bolt (23) is threadedly connected to the clamping ring (24); a rotating mechanism is provided at the front end of the clamping ring (24); the rotating mechanism is used to flip the steel profile (58); a supporting mechanism and a pushing mechanism are provided inside the working groove (20); the supporting mechanism is used to support and fix the steel profile (58); the pushing mechanism is used to clean up the cut waste; the rotating mechanism includes a rotating ring (27); the rotating ring (27) is fixedly connected to the front end of the clamping ring (24); a T-shaped The T-shaped snap ring (25) and the gear ring (26) are slidably connected to the inside of the T-shaped slot (31), the T-shaped slot (31) is formed on the inner wall of the arc-shaped notch (60), the arc-shaped notch (60) is formed on the support plate (30), the inner wall of the arc-shaped notch (60) does not contact the bottom end of the rotating ring (27), the support plate (30) is fixedly connected to the front end of the processing table (1), the bottom end of the gear ring (26) is meshed with the worm wheel (33), the right side of the worm wheel (33) is meshed with the worm (35), the bottom end of the worm (35) is fixedly connected to the output shaft of the driving motor (36), the front end of the worm wheel (33) and the top end of the worm (35) are both rotatably connected to the fixed frame (38), The bottom end of the fixed frame (38) is fixedly connected to the inner wall of the working groove (20); the supporting mechanism comprises a gear (34); the radius of the gear (34) and the worm gear (33) are the same; the radius of the gear (34) is half the radius of the gear ring (26); the front end of the gear (34) is rotatably connected to the fixed frame (38); the rear end of the gear (34) is sleeved on a protrusion (37); the protrusion (37) is fixedly connected to the bottom end of the supporting plate (30); the rear end of the gear (34) is fixedly connected to a rotating rod (39); two groups of connecting frames (40) are sleeved on the rotating rod (39); the connecting frames (40) are rotatably connected to the rotating rod (39); one side of the connecting frame (40) away from the rotating rod (39) The side of the lifting plate (43) is fixedly connected to the inner wall of the working groove (20), the rear end of the rotating rod (39) is fixedly connected to the rotating disk (41), the rear end of the rotating disk (41) is rotatably connected to the support rod (42), the top end of the support rod (42) rotates with the bottom end of the lifting plate (43), the side of the lifting plate (43) does not contact the inner wall of the working groove (20), the left and right sides of the lifting plate (43) are fixedly connected to three groups of sliders (44), the sliders (44) are slidably connected to the inside of the slide groove (45), the slide groove (45) is opened on the inner wall of the working groove (20), the top end of the lifting plate (43) is slidably connected to two groups of push plates (47), the top end of the push plate (47) abuts against the bottom end of the steel profile (58),The pushing mechanism comprises two groups of connecting blocks (49), the connecting blocks (49) are fixedly connected to the bottom end of the pushing plate (47), the connecting blocks (49) are slidably connected to the inside of the movable groove (48), the movable groove (48) is provided on the lifting plate (43), the connecting blocks (49) are in contact with the inner wall of the movable groove (48), the bottom ends of the two groups of connecting blocks (49) are rotatably connected to the first connecting rod (50) and the second connecting rod (51), the bottom ends of the first connecting rod (50) and the second connecting rod (51) are rotatably connected to the inner wall of the working groove (20), the first connecting rod (50) and the second connecting rod (51) are located at the rear end of the rotating disk (41), and the left and right sides of the inner wall of the working groove (20) are provided with through grooves (46).

2. The laser cutting device for steel structure profiles according to claim 1, characterized in that: The push plate (47) is designed to be L-shaped, the bottom end of the push plate (47) does not contact the top end of the lifting plate (43), the bottom end of the push plate (47) is fixedly connected to a long plate (52), and the bottom end of the long plate (52) contacts the top end of the lifting plate (43).

3. The laser cutting device for steel structure profiles according to claim 2, characterized in that: The front and rear sides of the lifting plate (43) are both fixedly connected to fixed plates (55), and the top end of the fixed plate (55) at the front end abuts against the bottom end of the steel profile (58).

4. The laser cutting device for steel structure profiles according to claim 3, characterized in that: Two groups of U-shaped grooves (54) are formed on one side of the fixed plate (55) close to the push plate (47). A fixed rod (53) is slidably connected inside the U-shaped groove (54). The fixed rod (53) is inserted inside the push plate (47). The fixed rod (53) is fixedly connected to the push plate (47).

5. The laser cutting device for steel structure profiles according to claim 1, characterized in that: A plurality of groups of retaining frames (29) are fixedly connected to the inner wall of the rotating ring (27), and a rubber column (28) is rotatably connected to the retaining frame (29), and the rubber column (28) is in contact with the surface of the steel profile (58).

6. The laser cutting device for steel structure profiles according to claim 1, characterized in that: A plurality of grooves (59) are provided on both the front and rear sides of the arc-shaped notch (60), and a round block (32) is rotatably connected to the groove (59), and the top end of the round block (32) contacts the bottom end of the rotating ring (27).

7. The laser cutting device for steel structure profiles according to claim 1, characterized in that: Four groups of limit blocks (56) are fixedly connected to the top end of the inner wall of the working groove (20), and the bottom ends of the limit blocks (56) abut against the top end of the lifting plate (43).

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