Laser cutting machine for building steel structure profile

Abstract

The invention relates to the technical field of laser cutting machines, in particular to a laser cutting machine for building steel structure profiles, which comprises a workbench, a slag falling opening is formed in the middle of the workbench, a cutting assembly is integrally formed in the middle of the top surface of the workbench, and a side clamping cooling assembly is arranged on the top surface of the workbench and located on the left side of the cutting assembly. A vertical fixing assembly is arranged on the right side of the cutting assembly, a cylindrical groove is formed in the top face of the workbench, and a driven roller is rotationally connected between the two ends of the interior of the cylindrical groove. According to the improved laser cutting machine, a horizontal clamping mechanism and a vertical clamping mechanism are automatically triggered to automatically clamp and fix a steel member in the feeding process of the steel member, the situation that the cutting position deviates due to displacement of the steel member in the cutting process is prevented, and after cutting is completed, in the discharging process, the steel member drives a side clamping cooling assembly to reversely run, so that the cutting efficiency is improved. And water is automatically sprayed to the cut steel member for cooling, so that the risk that workers are scalded by the section of the steel member is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting machines, in particular to a laser cutting machine for building steel structure profiles. Background Art

[0002] Laser cutting machine is to focus the laser emitted from the laser into a high power density laser beam through the optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach the melting point or boiling point. At the same time, the high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the relative position of the beam and the workpiece moves, the material is eventually cut, thereby achieving the purpose of cutting.

[0003] The existing patent (Announcement No.: CN116213963B) discloses a thin plate laser cutting device and a laser cutting method, which belongs to the field of laser cutting technology, including a workbench, a carrier, a gantry, a laser cutting instrument, a suction cup hanger mechanism, a retractable support mechanism and a clamping mechanism, wherein: two carriers are provided and symmetrically arranged on both sides of the workbench, which are used to place the plate; the gantry is located on the upper side of the workbench and the carrier, and a displacement mechanism is arranged inside it; the laser cutting instrument is arranged on the lower side of the displacement mechanism through a mechanical arm, which is used to cut the plate; by using the present invention, it is possible to avoid the problem of blackening and burrs on the cutting surface of the plate due to the cutting of the support plate group, thereby ensuring the cutting quality. In addition, the present invention can also complete the automatic loading and unloading, cutting and waste discharge work, and has the advantages of high degree of automation and high work efficiency. The existing technology has the following problems: the steel component is prone to positional displacement during cutting, resulting in deviation in the cutting position, and the temperature of the steel section after cutting is high, which cannot be used immediately, and workers are prone to burns when taking it. Summary of the invention

[0004] The purpose of the present invention is to provide a laser cutting machine for building steel structure profiles to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A laser cutting machine for building steel structure profiles, comprising a workbench, a slag drop port is provided in the middle of the workbench, a cutting assembly is integrally formed in the middle of the top surface of the workbench, a side clamping cooling assembly is provided on the top surface of the workbench located on the left side of the cutting assembly, a vertical fixing assembly is provided on the right side of the cutting assembly, a cylindrical groove is provided on the top surface of the workbench, a driven roller is rotatably connected between the two ends of the inner part of the cylindrical groove, and a straight groove is provided on the top surface of the workbench; The side clamping cooling assembly includes a driving roller rotatably connected to the inside of the cylindrical groove, the driving roller is composed of a solid section and a hollow section, a spiral groove is opened on the surface of the hollow section, a guide rod is slidably penetrated in the middle of the spiral groove, a limited position disc is integrally formed at the bottom end of the guide rod, and the top end of the guide rod slides through the straight groove and extends to the top surface of the workbench and is connected to the bottom surface of the movable plate, a side of the movable plate close to the middle of the workbench is fixedly connected to a compression spring, and an end of the compression spring away from the movable plate is fixedly connected to a side clamping plate, and the movable plate A piston rod 1 is fixedly connected to the middle part of the side away from the extrusion spring, and a piston sheet 1 is integrally formed at the end of the piston rod 1 away from the movable plate 1. The piston sheet 1 is slidably connected to the inside of the piston cylinder 1, the top of the piston cylinder 1 is connected to one end of the hydraulic pipe 1, and the other end of the hydraulic pipe 1 is connected to the piston cylinder 2, and a sealing sheet 1 is slidably connected to the inside of the piston cylinder 2, and a water outlet pipe is fixedly connected to the middle part of the bottom surface of the sealing sheet 1, and the bottom end of the water outlet pipe penetrates to the outside of the piston cylinder 2 and is connected to the shower head, and a roller is rotatably installed on the side clamping plate away from the extrusion spring.

[0006] Preferably, a water inlet hole is provided at the edge of one end of the water outlet pipe connected to the sealing sheet 1, and a one-way valve 1 is provided on the outside of the water inlet hole.

[0007] Preferably, a one-way valve 2 is fixedly connected to the inner bottom of the piston cylinder 2, one side of the one-way valve 2 is connected to the water tank through a hose, and a filter cover is fixedly connected inside the connection point between the hose and the water tank, and the water tank is located in the middle of the bottom surface of the workbench.

[0008] Preferably, the vertical fixing assembly includes a second driving roller rotatably connected to the inside of the cylindrical groove. The second driving roller has the same structure as the first driving roller, and both are composed of a solid section and a hollow section. The hollow section of the second driving roller is provided with a spiral groove 2, and a guide rod 2 slides through the inside of the second spiral groove.

[0009] Preferably, the bottom end of the guide rod 2 is fixedly connected to a limited position circular plate 2, the top end of the guide rod 2 is fixedly connected to a movable plate 2, the side of the movable plate 2 away from the middle of the workbench is fixedly connected to a piston rod 2, and the end of the piston rod 2 away from the movable plate 2 is integrally formed with a piston plate 2.

[0010] Preferably, the piston plate 2 is slidably connected to the inside of the piston cylinder 3, the top of the piston cylinder 3 is connected to the top of the hydraulic cylinder through the hydraulic pipe 2, the inside of the hydraulic cylinder is slidably connected to the sealing plate 2, and the middle of the bottom surface of the sealing plate 2 is fixedly connected to the outer cylinder.

[0011] Preferably, the bottom end of the outer cylinder extends to the outside of the bottom surface of the hydraulic cylinder, a spring telescopic rod is fixedly connected to the bottom hole of the outer cylinder, a connecting ball is fixedly connected to the bottom end of the spring telescopic rod, and the connecting ball is slidably embedded in the middle of the top surface of the soft lower pressure plate.

[0012] Preferably, the cutting assembly includes a gantry fixedly connected to the top surface of the workbench, a motor is fixedly connected to one side of the gantry, a threaded rod is fixedly connected to the output end of the motor, a reciprocating block is threadedly connected to the middle part of the threaded rod, a cylinder is provided on the bottom surface of the reciprocating block, a laser cutting head is fixedly installed on the output end of the cylinder, and the threaded rod is located directly above the slag drop port.

[0013] Preferably, the tops of the hydraulic cylinder and the second piston cylinder are fixedly connected to the gantry, and the ends of the hydraulic pipe 1 and the hydraulic pipe 2 away from the workbench both pass through the top plate of the gantry.

[0014] Preferably, the driven roller and the two sets of driving rollers are provided with inclined guide plates on both sides of the top surface of the workbench, the inclination direction of the inclined guide plates gradually decreases from the side close to the cylindrical groove to the side away from the cylindrical groove, and the rotation directions of the spiral groove one and the spiral groove two are opposite.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the left side of the steel component workbench is slid in along the table surface of the workbench. During the sliding process, the steel component will drive the side clamping plates in the side clamping cooling assembly to clamp the steel component in the horizontal direction. During the sliding process of the steel component from left to right, the spray part in the side clamping cooling assembly moves up. At this time, the sealing sheet 1 moves up, and the negative pressure is used to automatically replenish water to the inside of the piston cylinder 2. Moreover, when the steel component slides from left to right, it will also trigger the vertical fixing assembly to clamp and fix the steel component up and down. In conjunction with the side clamping plates, the steel component can be fixed in the horizontal and vertical directions, thereby avoiding the movement of the steel component during the cutting process and causing deviation in the cutting position.

[0016] In the present invention, after the cutting is completed, the steel component is pushed from right to left, so that the driving roller in the side clamping cooling assembly is reversed, thereby realizing the water spraying of the shower head, spraying water to cool the steel component passing under the shower head, accelerating the temperature rise of the steel component caused by cutting, and putting it into use faster. At the same time, it also reduces the risk of workers being scalded by the cross-section of the steel component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention; Figure 2 It is a schematic diagram of a front cross-sectional three-dimensional structure of the present invention; Figure 3 It is a right-side sectional three-dimensional structural schematic diagram of the present invention; Figure 4 For the present invention Figure 3 A is an enlarged structural diagram; Figure 5 This is a schematic diagram of the left side three-dimensional structure of the driving roller of the present invention; Figure 6 It is a right side cross-sectional three-dimensional structural schematic diagram of the piston cylinder of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the piston cylinder of the present invention from two side views.

[0018] In the figure: 1, workbench; 2, slag outlet; 3, inclined guide plate; 4, cutting assembly; 401, gantry; 402, motor; 403, threaded rod; 404, reciprocating block; 405, cylinder; 406, laser cutting head; 5, side clamping cooling assembly; 501, driving roller 1; 502, spiral groove 1; 503, guide rod 1; 504, limit disc 1; 505, movable plate 1; 506, extrusion spring; 507, side clamping plate; 508, piston rod 1; 509, piston plate 1; 5010, piston cylinder 1; 5011, hydraulic pipe 1; 5012, piston cylinder 2; 5013, sealing plate 1; 5014, water outlet pipe; 5015, flower Sprinkler head; 5016, one-way valve one; 5017, one-way valve two; 5018, hose; 5019, water tank; 5020, filter cover; 5021, roller; 6, vertical fixing assembly; 601, driving roller two; 602, spiral groove two; 603, guide rod two; 604, limit disc two; 605, movable plate two; 606, piston rod two; 607, piston disc two; 608, piston cylinder three; 609, hydraulic pipe two; 6010, hydraulic cylinder; 6011, sealing disc two; 6012, outer cylinder; 6013, spring telescopic rod; 6014, connecting ball; 6015, soft lower pressure plate; 7, cylindrical groove; 8, driven roller; 9, straight slot. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figures 1 to 7The present invention provides a technical solution: a laser cutting machine for building steel structure profiles, comprising a workbench 1, a slag drop port 2 is provided in the middle of the workbench 1, a cutting assembly 4 is integrally formed in the middle of the top surface of the workbench 1, a side clamping cooling assembly 5 is provided on the top surface of the workbench 1 located on the left side of the cutting assembly 4, a vertical fixing assembly 6 is provided on the right side of the cutting assembly 4, a cylindrical groove 7 is provided on the top surface of the workbench 1, a driven roller 8 is rotatably connected between the two ends of the inner side of the cylindrical groove 7, and a straight groove 9 is provided on the top surface of the workbench 1.

[0021] In this embodiment, Figure 1 , Figure 2 and Figures 5 to 7As shown, the side clamping cooling assembly 5 includes a driving roller 501 rotatably connected to the inside of the cylindrical groove 7, the driving roller 501 is composed of a solid section and a hollow section, the surface of the hollow section is provided with a spiral groove 502, the middle of the spiral groove 502 is slidably penetrated by a guide rod 503, the bottom end of the guide rod 503 is integrally formed with a limited position circular sheet 504, and the top end of the guide rod 503 slides through the straight slot 9 and extends to the top surface of the workbench 1 and is connected to the bottom surface of the movable plate 505, and the movable plate 505 is fixedly connected to the side near the middle of the workbench 1 A compression spring 506 is connected, and one end of the compression spring 506 away from the movable plate 1 505 is fixedly connected to a side clamping plate 507, and the middle part of the side of the movable plate 1 505 away from the compression spring 506 is fixedly connected to a piston rod 1 508, and one end of the piston rod 1 508 away from the movable plate 1 505 is integrally formed with a piston sheet 1 509, and the piston sheet 1 509 is slidably connected to the inside of the piston cylinder 1 5010, and the top of the piston cylinder 1 5010 is connected to one end of the hydraulic pipe 1 5011, and the other end of the hydraulic pipe 1 5011 is connected to the piston cylinder 2 5012 The piston cylinder 5012 is slidably connected to a sealing sheet 5013 inside, and a water outlet pipe 5014 is fixedly connected to the middle of the bottom surface of the sealing sheet 5013. The bottom end of the water outlet pipe 5014 passes through the outside of the piston cylinder 5012 and is connected to the shower head 5015. A roller 5021 is rotatably installed on the side of the side clamping plate 507 away from the extrusion spring 506. A water inlet hole is opened at the edge of one end of the water outlet pipe 5014 connected to the sealing sheet 5013, and a one-way valve 5016 is arranged on the outside of the water inlet hole. The bottom of the inner side of the piston cylinder 5012 is A one-way valve 5017 is fixedly connected, one side of the one-way valve 5017 is connected to a water tank 5019 through a hose 5018, and a filter cover 5020 is fixedly connected inside the connection between the hose 5018 and the water tank 5019. The water tank 5019 is located in the middle of the bottom surface of the workbench 1. The spiral groove 502 and the spiral groove 602 have opposite rotation directions. The driven roller 8 and the two sets of driving rollers are located on both sides of the top surface of the workbench 1. Inclined guide plates 3 are provided. The inclination direction of the inclined guide plate 3 gradually decreases from the side close to the cylindrical groove 7 to the side away from the cylindrical groove 7.When using the laser cutting machine, the steel component to be cut is pushed in from the left side of the workbench 1. During the pushing process, the steel component contacts the driving roller 501, the driven roller 8 and the inclined guide plate 3 on the table surface, and contacts the exposed parts of the driven roller 8 and the driving roller 501 to drive the driven roller 8 and the driving roller 501 to rotate. The driven roller 8 and the driving roller 501 can reduce the friction between the steel component and the table surface of the workbench 1, making it easier and more labor-saving for workers to push the steel component. The inclined guide plate 3 can prevent the steel component from directly hitting the driving roller 501 or the driven roller 8 when being pushed along the table surface of the workbench 1, causing damage to the roller surface, and plays a role of smooth transition. When the driving roller 501 rotates, it will drive the screw of the hollow section The spiral groove 502 drives the guide rod 503 to move. Under the extrusion of the spiral groove 502, the guide rod 503 moves linearly along the straight groove 9. At this time, the guide rod 503 drives the top movable plate 505 to move closer to the middle of the workbench 1, and the movable plate 505 drives the side clamping plate 507 to move synchronously through the extrusion spring 506, and finally makes the side clamping plate 507 clamp the two sides of the steel member. In this process, the steel member continues to push to the right, the extrusion spring 506 is gradually compressed, and the roller 5021 on one side of the side clamping plate 507 is in rolling contact with the steel member, so that the steel member can still be pushed by the worker along its own axis in the clamped state. During the process of the middle of 1 approaching, the piston plate 1 509 will be driven to move synchronously through the piston rod 1 508, and the piston plate 1 509 will pump the hydraulic oil in the piston cylinder 2 5012 into the piston cylinder 1 5010. At this time, the sealing plate 1 5013 in the piston cylinder 2 5012 moves up, so that the space below the sealing plate 1 5013 generates negative pressure, so that the water in the water tank 5019 is sucked into the space between the sealing plate 1 5013 and the piston cylinder 2 5012 through the hose 5018. The setting of the one-way valve 2 5017 only allows the water to enter the piston cylinder 2 5012 from the hose 5018. After the cutting is completed, the steel component needs to be pushed to the left to be removed. In this process, the driving roller 1 501 is reversed to drive the piston The seal 1 509 is away from the middle of the workbench 1, so that the hydraulic oil in the piston cylinder 1 5010 is squeezed into the piston cylinder 2 5012. At this time, the sealing piece 1 5013 moves downward, and because the space below the sealing piece 1 5013 is connected to the inside of the water outlet pipe 5014 by a hole, the downward movement of the sealing piece 1 5013 will squeeze the water from the one-way valve 1 5016 into the inside of the water outlet pipe 5014, and finally spray out from the shower head 5015 at the bottom of the water outlet pipe 5014. In the process of removing the cut steel component from the left side of the workbench 1, the shower head 5015 can spray water on the cross section of the cut steel component to cool it down, preventing the temperature at the cross section from being too high and scalding the workers, thereby improving safety. ;

[0022] In this embodiment, Figures 1 to 4As shown, the vertical fixing assembly 6 includes a driving roller 601 rotatably connected to the inside of the cylindrical groove 7. The driving roller 601 has the same structure as the driving roller 1 501, and both are composed of a solid section and a hollow section. The hollow section of the driving roller 601 is provided with a spiral groove 602, and a guide rod 603 is slidably penetrated inside the spiral groove 602. The bottom end of the guide rod 603 is fixedly connected to a limited position circular plate 604, and the top of the guide rod 603 is fixedly connected to a movable plate 605. The movable plate 605 is fixedly connected to a piston rod 606 on one side away from the middle of the workbench 1. The end of the piston rod 606 away from the movable plate 605 is integrally formed with a piston plate 607. 607 is slidably connected to the inside of piston cylinder 3 608, the top of piston cylinder 3 608 is connected to the top of hydraulic cylinder 6010 through hydraulic pipe 2 609, the inside of hydraulic cylinder 6010 is slidably connected with sealing sheet 2 6011, the middle of the bottom surface of sealing sheet 2 6011 is fixedly connected with outer cylinder 6012, the bottom end of outer cylinder 6012 extends to the outside of the bottom surface of hydraulic cylinder 6010, the bottom hole of outer cylinder 6012 is fixedly connected with spring telescopic rod 6013, the bottom end of spring telescopic rod 6013 is fixedly connected with connecting ball 6014, the connecting ball 6014 is slidably embedded in the middle of the top surface of soft lower pressure plate 6015, the top of hydraulic cylinder 6010 and piston cylinder 2 5012 are connected to each other. The upper part is fixedly connected to the gantry 401, and the ends of the hydraulic pipe 1 5011 and the hydraulic pipe 2 609 away from the workbench 1 both pass through the top plate of the gantry 401; during the loading process, the steel component is pushed in from the left side of the workbench 1, and the right end of the steel component will come into contact with the driving roller 2 601 and drive the driving roller 2 601 to rotate. At this time, the driving roller 2 601 squeezes the guide rod 2 603 through the spiral groove 2 602 to slide along the straight groove 9. Since the spiral groove 2 602 and the spiral groove 1 502 have opposite rotation directions, the guide rod 2 603 at this time slides in the direction away from the middle of the workbench 1, thereby driving the piston plate 2 607 to push the hydraulic oil in the piston cylinder 3 608 through the hydraulic pipe 2 606. 09 is squeezed into the hydraulic cylinder 6010, pushing the sealing piece 2 6011 downward. The downward movement of the sealing piece 2 6011 will push the outer cylinder 6012 downward, and the downward movement of the outer cylinder 6012 pushes the soft lower pressure plate 6015 downward through the spring telescopic rod 6013 and the connecting ball 6014, so that the soft lower pressure plate 6015 is pressed down on the top of the steel component to fix the steel component in the vertical direction. The side clamping cooling component 5 can fix the steel component to prevent displacement during the cutting process that affects the cutting accuracy. In addition, the soft lower pressure plate 6015 and the two spring telescopic rods 6013 are used in combination to press irregular steel components, thereby improving the adaptability of the vertical fixing component 6.

[0023] In this embodiment, Figures 1 to 3As shown, the cutting assembly 4 includes a gantry 401 fixedly connected to the top surface of the workbench 1, a motor 402 is fixedly connected to one side of the gantry 401, a threaded rod 403 is fixedly connected to the output end of the motor 402, a reciprocating block 404 is threadedly connected to the middle part of the threaded rod 403, a cylinder 405 is provided on the bottom surface of the reciprocating block 404, a laser cutting head 406 is fixedly installed on the output end of the cylinder 405, and the threaded rod 403 is located directly above the slag outlet 2; when the steel component is fixed, the motor 402 is started to drive the threaded rod 403 to rotate, and the rotation of the threaded rod 403 will cause the reciprocating block 404 to move along the axis of the threaded rod 403, thereby driving the laser cutting head 406 below to move synchronously to cut the steel component, and the molten slag generated due to high temperature during cutting will fall from the slag outlet 2 into the water tank 5019, preventing these slag from remaining on the steel component or the workbench 1, and once cooled, it will re-attach to the table surface of the workbench 1 and be difficult to clean.

[0024] The use method and advantages of the present invention: When the laser cutting machine for building steel structure profiles is used, the working process is as follows: First, slide the left side of the steel component workbench 1 along the table surface of the workbench 1. During the sliding process, the steel component will drive the side clamping plate 507 in the side clamping cooling assembly 5 to clamp the steel component in the horizontal direction. During the sliding process of the steel component from left to right, the spray part in the side clamping cooling assembly 5 moves up. At this time, the sealing piece 1 5013 moves up, and the negative pressure is used to automatically replenish water inside the piston cylinder 2 5012. In addition, when the steel component slides from left to right, it will also trigger the vertical fixing assembly 6 to clamp and fix the steel component up and down, and cooperate with The side clamping plate 507 can fix the steel member in the horizontal and vertical directions to prevent the steel member from moving during the cutting process and causing deviation in the cutting position. After the cutting is completed, the steel member is pushed from right to left to reverse the driving roller 501 in the side clamping cooling assembly 5, thereby realizing the water spraying of the shower nozzle 5015, and spraying water to cool the steel member passing under the shower nozzle 5015, thereby accelerating the temperature rise of the steel member caused by cutting and putting it into use faster. At the same time, it also reduces the risk of workers being scalded by the cross-section of the steel member.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A laser cutting machine for building steel structure profiles, comprising a workbench (1), characterized in that: A slag drop opening (2) is provided in the middle of the workbench (1), a cutting assembly (4) is integrally formed in the middle of the top surface of the workbench (1), a side clamping cooling assembly (5) is provided on the top surface of the workbench (1) on the left side of the cutting assembly (4), a vertical fixing assembly (6) is provided on the right side of the cutting assembly (4), a cylindrical groove (7) is provided on the top surface of the workbench (1), a driven roller (8) is rotatably connected between the two ends of the cylindrical groove (7), and a straight slot (9) is provided on the top surface of the workbench (1); The side clamping cooling assembly (5) includes a driving roller (501) rotatably connected to the inside of the cylindrical groove (7), the driving roller (501) is composed of a solid section and a hollow section, the surface of the hollow section is provided with a spiral groove (502), the middle part of the spiral groove (502) is slidably penetrated by a guide rod (503), the bottom end of the guide rod (503) is integrally formed with a limited position circular plate (504), and the top end of the guide rod (503) slides through the straight groove (9) and extends to the top surface of the workbench (1) and is connected to the bottom surface of the movable plate (505), the movable plate (505) is fixedly connected to a compression spring (506) on one side close to the middle of the workbench (1), the compression spring (506) is fixedly connected to a side clamp (507) on one end away from the movable plate (505), and the side of the movable plate (505) away from the compression spring (506) A piston rod 1 (508) is fixedly connected in the middle, and a piston plate 1 (509) is integrally formed at one end of the piston rod 1 (508) away from the movable plate 1 (505). The piston plate 1 (509) is slidably connected to the inside of the piston cylinder 1 (5010). The top of the piston cylinder 1 (5010) is connected to one end of the hydraulic pipe 1 (5011), and the other end of the hydraulic pipe 1 (5011) is connected to the piston cylinder 2 (5012). A sealing plate 1 (5013) is slidably connected to the inside of the piston cylinder 2 (5012). A water outlet pipe (5014) is fixedly connected to the middle of the bottom surface of the sealing plate 1 (5013). The bottom end of the water outlet pipe (5014) passes through the outside of the piston cylinder 2 (5012) and is connected to the shower head (5015). A roller (5021) is rotatably installed on the side of the side clamping plate (507) away from the extrusion spring (506).

2. The laser cutting machine for building steel structure profiles according to claim 1, characterized in that: A water inlet hole is provided at the edge of one end of the water outlet pipe (5014) connected to the sealing sheet 1 (5013), and a one-way valve 1 (5016) is provided outside the water inlet hole.

3. The laser cutting machine for building steel structure profiles according to claim 1, characterized in that: A second one-way valve (5017) is fixedly connected to the inner bottom of the second piston cylinder (5012); one side of the second one-way valve (5017) is connected to a water tank (5019) via a hose (5018); and a filter cover (5020) is fixedly connected to the inside of the connection between the hose (5018) and the water tank (5019); the water tank (5019) is located in the middle of the bottom surface of the workbench (1).

4. The laser cutting machine for building steel structure profiles according to claim 1, characterized in that: The vertical fixing assembly (6) comprises a second driving roller (601) rotatably connected to the inside of the cylindrical groove (7); the second driving roller (601) has the same structure as the first driving roller (501), both consisting of a solid section and a hollow section; the hollow section of the second driving roller (601) is provided with a second spiral groove (602); a second guide rod (603) is slidably penetrated inside the second spiral groove (602).

5. The laser cutting machine for building steel structure profiles according to claim 4, characterized in that: The bottom end of the second guide rod (603) is fixedly connected to the second limited disc (604), the top end of the second guide rod (603) is fixedly connected to the second movable plate (605), the side of the second movable plate (605) away from the middle of the workbench (1) is fixedly connected to the second piston rod (606), and the end of the second piston rod (606) away from the second movable plate (605) is integrally formed with the second piston plate (607).

6. The laser cutting machine for building steel structure profiles according to claim 5, characterized in that: The piston plate 2 (607) is slidably connected to the inside of the piston cylinder 3 (608); the top of the piston cylinder 3 (608) is connected to the top of the hydraulic cylinder (6010) via the hydraulic pipe 2 (609); the inside of the hydraulic cylinder (6010) is slidably connected to the sealing plate 2 (6011); the middle of the bottom surface of the sealing plate 2 (6011) is fixedly connected to the outer cylinder (6012).

7. The laser cutting machine for building steel structure profiles according to claim 6, characterized in that: The bottom end of the outer cylinder (6012) extends to the outside of the bottom surface of the hydraulic cylinder (6010), and a spring telescopic rod (6013) is fixedly connected in a hole at the bottom end of the outer cylinder (6012), and a connecting ball (6014) is fixedly connected to the bottom end of the spring telescopic rod (6013), and the connecting ball (6014) is slidably embedded in the middle of the top surface of the soft lower pressure plate (6015).

8. The laser cutting machine for building steel structure profiles according to claim 1, characterized in that: The cutting assembly (4) comprises a gantry (401) fixedly connected to the top surface of the workbench (1); a motor (402) is fixedly connected to one side of the gantry (401); a threaded rod (403) is fixedly connected to the output end of the motor (402); a reciprocating block (404) is threadedly connected to the middle of the threaded rod (403); a cylinder (405) is provided on the bottom surface of the reciprocating block (404); a laser cutting head (406) is fixedly mounted to the output end of the cylinder (405); and the threaded rod (403) is located directly above the slag drop port (2).

9. The laser cutting machine for building steel structure profiles according to claim 8, characterized in that: The tops of the hydraulic cylinder (6010) and the second piston cylinder (5012) are fixedly connected to the gantry (401), and the ends of the hydraulic pipe (5011) and the second hydraulic pipe (609) away from the workbench (1) both pass through the top plate of the gantry (401).

10. The laser cutting machine for building steel structure profiles according to claim 1, characterized in that: The driven roller (8) and the two sets of driving rollers are provided with inclined guide plates (3) on both sides of the top surface of the workbench (1), and the inclination direction of the inclined guide plates (3) gradually decreases from the side close to the cylindrical groove (7) to the side away from the cylindrical groove (7), and the rotation directions of the spiral groove 1 (502) and the spiral groove 2 (602) are opposite.

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