Laser cutting device and process for preventing deformation of steel member

Abstract

The invention discloses a laser cutting device and process for preventing deformation of a steel member, and relates to the technical field of laser cutting. A feeding box is fixedly connected to one side of the device body, and an operation table is fixedly connected to the front end of the device body. An auxiliary cutting assembly is arranged in the pipe fitting, high-temperature welding slag generated in the cutting process is splashed downwards and makes contact with a second partition net firstly, the second partition net is installed in an arc-shaped bearing plate through arc-shaped pieces on the two sides, and the arc-shaped pieces are fixed to the inner side of the arc-shaped bearing plate through tension ropes on the top; under the action of the pull rope, the second separation net has a movable space, potential energy of welding slag splashing is absorbed when the welding slag is splashed on the surface of the second separation net in cooperation with the flexibility of the second separation net, meanwhile, the metal net and the first separation net are further arranged at the bottom of the second separation net, and the welding slag intercepting effect of the second separation net is further improved; and the problem that the welding slag is splashed to the inner wall of the pipe fitting to cause non-uniform temperature is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, and in particular to a laser cutting device and process for preventing deformation of steel components. Background Art

[0002] The steel component system has the comprehensive advantages of light weight, factory manufacturing, quick installation, short construction period, good seismic performance, fast investment recovery and less environmental pollution. Compared with reinforced concrete structures, it has unique advantages in the three aspects of "high, large and light". On a global scale, especially in developed countries and regions, steel components are reasonably and widely used in the field of construction engineering.

[0003] When currently steel structures are recycled, for reasons of transportation and storage, they need to be cut first, and then the cut connecting seats, side rods, and main bodies are classified for storage and utilization. For such steel structures, the side rods, connecting seats, and main bodies need to be manually cut apart, and then the main bodies need to be cut. Manual cutting is inefficient, time-consuming, labor-intensive, and has a low degree of automation. In addition, manual cutting operations are also dangerous.

[0004] A Chinese patent document discloses a steel member cutting device and a method of using the same (Announcement No. CN115889894A), which comprises a lifting seat and a base arranged at intervals; a rotating table is installed on the lifting seat, and a driving mechanism 1 for driving a clamping mechanism 1 to rotate is installed on the rotating table; a linear slide 1 is installed on the base, a mounting seat is installed on the slider of the linear slide 1, and a clamping mechanism 2 is rotatably installed on the mounting seat, and also includes a three-axis linkage mechanism arranged between the lifting seat and the base, and a cutting mechanism 1 is installed on the three-axis linkage mechanism; but the following defects still exist in the implementation process: Although the device in the above-mentioned document can automatically cut the side rods on the main body of the steel component, and after the side rods are cut, the main body connected to the connecting seat can be placed on the receiving seat and clamped by the clamping block, and the main body can also be driven to move to the set length as required, so that it can be cut into several sections of fixed length, and each section of the rod body can be automatically pushed into a collection frame. However, the device in the above-mentioned document generates a large amount of high-temperature welding slag during the laser cutting process. The welding slag splashes inside the pipe fitting, causing the temperature of the part of the pipe fitting steel component opposite to the laser cutting head to rise during the cutting process, causing the local temperature of the pipe fitting to rise, resulting in a temperature difference in the part to be cut. Due to the uneven internal temperature distribution, thermal stress will be generated. At the same time, the material will undergo thermal expansion after being heated, further aggravating the deformation. Summary of the invention

[0005] The purpose of the present invention is to provide a laser cutting device and process for preventing deformation of steel components, so as to solve the problem mentioned in the above background technology that high-temperature welding slag is sprayed inside the pipe, causing local temperature rise.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: A laser cutting device for preventing deformation of steel components comprises a device body; a loading box is fixedly connected to one side of the device body, an operating table is fixedly connected to the front end of the device body, a lathe chuck is fixedly connected to the inner wall of the device body, a laser cutting head is fixedly connected to the top of the inner wall of the device body, a pipe fitting is inserted into the inner wall of the lathe chuck, an auxiliary cutting component is arranged on the inner wall of the pipe fitting, and the auxiliary cutting component is used to reduce the deformation phenomenon when cutting steel components; the auxiliary cutting component comprises an arc-shaped receiving plate arranged on the inner wall of the pipe fitting, an electric push rod is fixedly connected to one side of the arc-shaped receiving plate, a second partition net is movably connected to the middle position of the arc-shaped receiving plate, a metal mesh is fixedly connected to the bottom of the second partition net, a first partition net is fixedly connected to the bottom of the metal mesh, arc-shaped sheets are fixedly connected to both sides of the second partition net, the arc-shaped sheet and the arc-shaped receiving plate are slidably connected, tension ropes are arranged on both sides of the arc-shaped sheet, the tension ropes are fixedly connected to the inner wall of the arc-shaped receiving plate, and a partition plate is fixedly connected to one side of the arc-shaped receiving plate.

[0007] The above-mentioned technical scheme is adopted, in which an auxiliary cutting component is placed inside the pipe fitting, and the high-temperature welding slag generated during the cutting process splashes downward and first contacts the second partition net. The second partition net is installed inside the arc-shaped receiving plate through the arc-shaped pieces on both sides, and the arc-shaped pieces are fixed to the inner side of the arc-shaped receiving plate through the tension rope at the top. Under the action of the tension rope, the second partition net has movable space, and with the flexibility of the second partition net itself, when the welding slag splashes on the surface of the second partition net, it absorbs the potential energy of the welding slag splashing. At the same time, a metal mesh and a first partition net are also provided at the bottom of the second partition net to further improve the interception effect of the second partition net on the welding slag. It should be noted that the arc-shaped receiving plate is semi-arc shaped, and the top expands to both sides, so that the range of intercepting the welding slag is wider, avoiding the problem of uneven temperature caused by the welding slag splashing to the inner wall of the pipe fitting.

[0008] A further improvement of the technical solution of the present invention is that: a plurality of baffle plates No. 1 and No. 2 distributed in a linear array are fixedly connected to the bottom of the first partition net, and the baffle plates No. 1 and No. 2 are installed interspersed, and a cleaning plate is slidably connected to the bottom of the first partition net, an elastic rope is fixedly connected to one side of the cleaning plate, a magnet is plugged into the inside of the cleaning plate, the top of the cleaning plate is set in an inclined surface, an arch plate is plugged into the bottom of the arc-shaped supporting plate, the top of the arch plate and the bottom of the cleaning plate are slidably connected, the bottom of the arch plate is slidably connected with a chip collecting groove, and a side of the partition plate close to the arc-shaped supporting plate is fixedly connected to a limiting inclined plate, and the limiting inclined plate is set in an inclined surface.

[0009] The above-mentioned technical solution is adopted, in which the first partition net, the metal mesh and the second partition net are an integrated structure. When there is a lot of welding slag accumulated on the surface, the cleaning plate can be moved to clean the welding slag remaining on the surface. Specifically, the top of the cleaning plate is set at an angle, and it will hit the first baffle plate and the second baffle plate during the movement. Combined with the mesh setting of the second partition net, the second partition net will shake in a wavy shape under the impact of the cleaning plate.

[0010] A further improvement of the technical solution of the present invention is that a storage box is provided on the inner wall of the device body, the storage box is connected to an external air pump through a pipeline, an electric heating plate is fixedly connected to the inner wall of the storage box, an air supply pipe No. 1 and an air supply pipe No. 2 are fixedly connected to the bottom of the storage box, a conical cylinder No. 1 is fixedly connected to the side of the partition plate away from the arc-shaped receiving plate, the bottom of the conical cylinder No. 1 is fixedly connected to the air supply pipe No. 2, and the inner walls of the air supply pipe No. 1 and the air supply pipe No. 2 are both provided with solenoid valves.

[0011] The above-mentioned technical scheme is adopted, in which an electric heating plate is provided in the storage box. When the air pump transports gas into the storage box, the gas is first heated by the electric heating plate and then blown into the inside of the pipe through the No. 1 air supply pipe. During the blowing process, the welding slag splashed during cutting can also be blown into the inside of the pipe, to assist the preheating work of the pipe and reduce energy consumption.

[0012] A further improvement of the technical solution of the present invention is that a No. 2 conical cylinder is screwed to one side of the No. 1 conical cylinder by bolts, a drainage plate is fixedly connected to the inside of the No. 2 conical cylinder, a drainage rod is fixedly connected to the side of the drainage plate close to the No. 1 conical cylinder, and the No. 2 conical cylinder and the drainage rod are both arranged in a conical shape.

[0013] The above technical solution is adopted, in which the gas enters the No. 2 conical cylinder along the No. 1 conical cylinder. The No. 2 conical cylinder is arranged in a conical shape, and the opening diameter of the end away from the No. 1 conical cylinder is larger than the end close to the No. 1 conical cylinder. After the airflow enters the No. 2 conical cylinder, under its conical contour, it cooperates with the conical guide rod to guide the airflow to be dispersed on the inner wall of the No. 2 conical cylinder.

[0014] A further improvement of the technical solution of the present invention is that a protective cylinder is fixedly connected to the side of the No. 2 conical cylinder away from the No. 1 conical cylinder, a blocking base is fixedly connected to the inner wall of the protective cylinder, two corrugated baffles are fixedly connected to the inner wall of the blocking base, and a blocking plate is fixedly connected at the middle position of the two corrugated baffles.

[0015] The above technical solution is adopted, in which a protective tube and a barrier base are also provided at the rear end of the No. 2 conical tube to prevent heat from continuing to spread. The corrugated baffle inside the barrier base is corrugated in shape to increase the heating area, and cooperates with the barrier plate to accumulate heat in the preheating area, thereby improving the preheating effect.

[0016] A further improvement of the technical solution of the present invention is that: a plurality of support frames distributed in a circular array are fixedly connected to the outer side wall of the partition plate, a No. 1 spring is fixedly connected to the inner side wall of the support frame, the top of the No. 1 spring is fixedly connected to a limiting base, the top of the limiting base is fixedly connected to an arc-shaped extrusion plate, a weakening groove is provided in the middle position of the arc-shaped extrusion plate, and the arc-shaped extrusion plate is arranged in an arc surface.

[0017] The above technical solution is adopted, in which the arc extrusion plate is set in an arc shape and fits with the inner wall of the pipe fitting. During the cutting process, it cooperates with the No. 1 spring, the limit base and the support frame to make it fit more closely with the inside of the pipe fitting, thereby supporting the pipe fitting from the inside.

[0018] A further improvement of the technical solution of the present invention is that: the output end of the electric push rod is fixedly connected with a connecting plate, one side of the connecting plate is fixedly connected with a piston rod, the end of the piston rod away from the connecting plate is fixedly connected with a piston plate, the outer wall of the piston plate is slidably connected with a piston cylinder, the piston cylinder and the piston plate are fitted together, the outer wall of the piston cylinder is fixedly connected with a transport tube, one end of the transport tube is fixedly connected with a limiting box, an airbag is fixedly connected to the inner wall of the limiting box, one side of the airbag is fixedly connected with a limiting baffle, one side of the limiting baffle is fixedly connected with a lower material sheet, the inner wall of the lower material sheet is fixedly connected with an anti-slip sheet, the side of the limiting baffle close to the lower material sheet is fixedly connected with a No. 2 spring, and the side of the No. 2 spring away from the limiting baffle is fixedly connected to the inner wall of the limiting box.

[0019] The above technical solution is adopted. In this solution, after cutting is completed, the electric push rod is reset and drives the piston rod to move. At this time, the piston plate moves in the piston cylinder and squeezes the gas into the transport tube, and the airbag connected to it expands and squeezes the lower sheet to move.

[0020] A further improvement of the technical solution of the present invention is that a collecting box is fixedly connected to the inner wall of the device body, a filter plate is fixedly connected to the top of the collecting box, a chip box is slidably connected to the inner wall of the collecting box, the filter plate is inclined, and a slide groove is provided on the surface of the filter plate.

[0021] The above technical solution is adopted, in which the steel pipe slides into the collection box along with the filter plate after falling under the action of the lower material sheet, and the debris falls into the chip collection box along with the filter plate for centralized treatment.

[0022] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art: 1. The present invention provides a laser cutting device and process for preventing deformation of steel components. An auxiliary cutting component is arranged inside a pipe. High-temperature welding slag generated during the cutting process splashes downward and first contacts a second partition net. The second partition net is installed inside an arc-shaped receiving plate through arc-shaped pieces on both sides, and the arc-shaped pieces are fixed to the inner side of the arc-shaped receiving plate through a tension rope at the top. Under the action of the tension rope, the second partition net has a movable space. With the flexibility of the second partition net itself, the potential energy of the welding slag splashing is absorbed when the welding slag splashes on the surface of the second partition net. At the same time, a metal net and a first partition net are also arranged at the bottom of the second partition net to further improve the interception effect of the second partition net on the welding slag. It should be noted that the arc-shaped receiving plate is in a semi-arc shape, and the top expands to both sides, so that the range of intercepting the welding slag is wider, thereby avoiding the problem of uneven temperature caused by the welding slag splashing to the inner wall of the pipe fitting.

[0023] 2. The present invention provides a laser cutting device and process for preventing deformation of steel components. The first partition net, the metal mesh and the second partition net are set as an integrated structure. When there is a lot of welding slag accumulated on the surface, the cleaning plate can be moved to clean the welding slag remaining on the surface. Specifically, the top of the cleaning plate is set in an inclined surface, and it will hit the first baffle plate and the second baffle plate during the movement. With the mesh setting of the second partition net, the second partition net will vibrate in a wavy shape under the impact of the cleaning plate, thereby keeping the surface of the second partition net clean. At the same time, the cleaning plate will return to its original position under the action of the elastic rope, and the magnet inside it can quickly absorb iron-containing slag, improve the recycling rate, and increase the effect of rapid cooling of welding slag.

[0024] 3. The present invention provides a laser cutting device and process for preventing deformation of steel components. An electric heating plate is arranged in a storage box. When the air pump transports gas into the storage box, the gas is first heated by the electric heating plate and then blown into the pipe through a No. 1 air supply pipe. During the blowing process, welding slag splashed during cutting can also be blown into the pipe to assist in preheating the pipe, reduce energy consumption, and improve cutting efficiency. At the same time, the partition plate can prevent welding slag from entering the pipe to maintain the cleanliness of the pipe.

[0025] 4. The present invention provides a laser cutting device and process for preventing deformation of steel components. The gas is set to follow the No. 1 conical cylinder into the No. 2 conical cylinder. The No. 2 conical cylinder is set in a conical shape, and the opening diameter of the end away from the No. 1 conical cylinder is larger than the end close to the No. 1 conical cylinder. After the airflow enters the No. 2 conical cylinder, under its conical contour, it cooperates with the conical guide rod to guide the airflow to disperse on the inner wall of the No. 2 conical cylinder. A guide plate is also provided at the opening of the No. 2 conical cylinder. The part of the guide plate close to the inner wall of the No. 2 conical cylinder is arc-shaped, so that the gas can be more closely attached to the inner wall of the pipe fitting, thereby improving the uniformity of preheating of the pipe fitting and further reducing the probability of deformation of the pipe fitting during cutting.

[0026] 5. The present invention provides a laser cutting device and process for preventing deformation of steel components. When in use, an electric push rod is provided to first send the arc-shaped receiving plate into the pipe for cutting. After the cutting is completed, the electric push rod is reset and drives the piston rod to move. At this time, the piston plate moves in the piston cylinder and squeezes the gas into the transport pipe. The airbag connected to it expands and squeezes the lower material piece to move. It should be noted that the top of the lower material piece is an outward-turned arc surface, and an anti-slip sheet is also provided on the arc surface. When the piston cylinder moves, the cut steel pipe can be squeezed, which is convenient for rapid material unloading and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 3 It is a front view structural schematic diagram of the pipe fitting and the arc-shaped receiving plate in the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the arc-shaped receiving plate and the second partition net in the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the second partition net and the arc-shaped sheet in the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the first baffle plate, the second baffle plate and the cleaning plate in the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the arc-shaped receiving plate and the chip collecting groove in the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the limiting inclined plate and the chip collecting groove in the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the protective tube, the partition plate and the second conical tube in the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the No. 2 conical tube and the guide plate in the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the drainage rod and the drainage plate in the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of the arc extrusion plate and the partition plate in the present invention; Fig.13 It is a schematic diagram of the overall structure of the protective tube in the present invention; Fig.14 It is a schematic diagram of the overall structure of the storage box in the present invention; Fig.15 It is a schematic diagram of the three-dimensional structure of the electric push rod and the arc-shaped receiving plate in the present invention; Fig.16 It is a schematic diagram of the three-dimensional structure of the piston cylinder and the limit box body in the present invention; Fig.17 It is a schematic diagram of the overall structure of the collecting box in the present invention.

[0029] In the figure: 1. device body; 2. loading box; 3. operating table; 4. lathe chuck; 5. laser cutting head; 6. pipe fittings; 7. collection box; 8. arc receiving plate; 9. arc extrusion plate; 10. protective cylinder; 11. first partition net; 12. metal net; 13. second partition net; 14. partition plate; 15. chip collecting groove; 16. arch plate; 17. arc sheet; 18. baffle plate No. 1; 19. baffle plate No. 2; 20. cleaning plate; 21. elastic rope; 22. magnet; 23. limit inclined plate; 24. support frame; 25. cone cylinder No. 1; 26. cone cylinder No. 2 shaped cylinder; 27, anti-slip sheet; 28, drainage plate; 29, drainage rod; 30, limit base; 31, No. 1 spring; 32, barrier base; 33, corrugated baffle; 34, baffle; 35, storage box; 36, No. 1 air supply pipe; 37, electric push rod; 38, limit box; 39, No. 2 air supply pipe; 40, electric heating plate; 41, piston cylinder; 42, connecting plate; 43, piston rod; 44, piston plate; 45, transport pipe; 46, air bag; 47, unloading sheet; 48, No. 2 spring; 49, limit baffle; 50, chip box; 51, filter plate. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with embodiments: Example 1 like Figure 1 , Figure 3 and Figure 5 As shown, the present invention provides a laser cutting device and process for preventing deformation of steel components, including a device body 1; a loading box 2 is fixedly connected to one side of the device body 1, an operating table 3 is fixedly connected to the front end of the device body 1, a lathe chuck 4 is fixedly connected to the inner side wall of the device body 1, a laser cutting head 5 is fixedly connected to the top of the inner side wall of the device body 1, a pipe 6 is plugged into the inner side wall of the lathe chuck 4, and an auxiliary cutting component is arranged on the inner side wall of the pipe 6, and the auxiliary cutting component is used to reduce the deformation phenomenon when the steel component is cut; the auxiliary cutting component includes a tube 6 arranged inside the pipe 6 An arc-shaped receiving plate 8 on the side wall, one side of the arc-shaped receiving plate 8 is fixedly connected to an electric push rod 37, a second partition net 13 is movably connected to the middle position of the arc-shaped receiving plate 8, the bottom of the second partition net 13 is fixedly connected to a metal mesh 12, the bottom of the metal mesh 12 is fixedly connected to the first partition net 11, both sides of the second partition net 13 are fixedly connected to an arc-shaped piece 17, the arc-shaped piece 17 and the arc-shaped receiving plate 8 are slidably connected, both sides of the arc-shaped piece 17 are provided with tension ropes, the tension ropes are fixedly connected to the inner side wall of the arc-shaped receiving plate 8, and one side of the arc-shaped receiving plate 8 is fixedly connected to a partition plate 14.

[0031] In this embodiment, an auxiliary cutting assembly is arranged inside the pipe 6, and the high-temperature welding slag generated during the cutting process splashes downward and first contacts the second partition net 13. The second partition net 13 is installed inside the arc-shaped receiving plate 8 through the arc-shaped pieces 17 on both sides, and the arc-shaped pieces 17 are fixed to the inner side of the arc-shaped receiving plate 8 through the tension rope at the top. Under the action of the tension rope, the second partition net 13 has a movable space, and the flexibility of the second partition net 13 itself absorbs the potential energy of the welding slag splashing when the welding slag splashes on the surface of the second partition net 13. At the same time, a metal mesh 12 and a first partition net 11 are also provided at the bottom of the second partition net 13 to further improve the interception effect of the second partition net 13 on the welding slag. It should be noted that the arc-shaped receiving plate 8 is in a semi-arc shape, and the top expands to both sides, so that the range of intercepting the welding slag is wider, avoiding the problem of uneven temperature caused by the welding slag splashing to the inner wall of the pipe 6.

[0032] Example 2 like Figure 5 , Figure 6 and Figure 7 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the bottom of the first partition net 11 is fixedly connected with a plurality of baffle plates No. 18 and No. 2 baffle plates 19 distributed in a linear array, and the baffle plates No. 18 and No. 2 baffle plates 19 are installed in an interlaced manner, and the bottom of the first partition net 11 is slidably connected with a cleaning plate 20, one side of the cleaning plate 20 is fixedly connected with an elastic rope 21, a magnet 22 is inserted into the inside of the cleaning plate 20, the top of the cleaning plate 20 is arranged in an inclined surface, the bottom of the arc-shaped receiving plate 8 is inserted with an arch plate 16, the top of the arch plate 16 and the bottom of the cleaning plate 20 are slidably connected, the bottom of the arch plate 16 is slidably connected with a chip collecting groove 15, and the partition plate 14 is fixedly connected to a side of the arc-shaped receiving plate 8 with a limiting inclined plate 23, and the limiting inclined plate 23 is arranged in an inclined surface.

[0033] After long-term use, welding slag will accumulate on the surface of the second screen 13, causing the temperature of the welding slag to dissipate slowly, thereby making the bottom temperature of the arc-shaped receiving plate 8 higher, resulting in uneven temperature inside the pipe 6, affecting subsequent cutting work.

[0034] In this embodiment, the first partition net 11, the metal mesh 12 and the second partition net 13 are set as an integrated structure. When there is a lot of welding slag accumulated on the surface, the cleaning plate 20 can be moved to clean the welding slag remaining on the surface. Specifically, the top of the cleaning plate 20 is set at an angle, and it will hit the first baffle 18 and the second baffle 19 during the movement. Combined with the mesh setting of the second partition net 13, the second partition net 13 vibrates in a wavy shape under the impact of the cleaning plate 20, so that the surface of the second partition net 13 remains clean. At the same time, the cleaning plate 20 will return to its original position under the action of the elastic rope 21, and the magnet 22 inside it can quickly absorb iron-containing slag, improve the recycling rate, and increase the effect of rapid cooling of welding slag.

[0035] When the cleaning plate 20 is reset, part of the debris is pushed to the chip collecting groove 15 and falls on the limiting inclined plate 23 inside the chip collecting groove 15. The debris slides into the chip collecting groove 15 according to the inclination angle of the limiting inclined plate 23 and is collected in a centralized manner.

[0036] Example 3 like Figure 2 , Fig.14 and Fig.15 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, a storage box 35 is provided on the inner wall of the device body 1, and the storage box 35 is connected to the external air pump through a pipeline, and an electric heating plate 40 is fixedly connected to the inner wall of the storage box 35, and a No. 1 air supply pipe 36 and a No. 2 air supply pipe 39 are fixedly connected to the bottom of the storage box 35, and a No. 1 conical cylinder 25 is fixedly connected to the side of the partition plate 14 away from the arc-shaped receiving plate 8, and the bottom of the No. 1 conical cylinder 25 is fixedly connected to the No. 2 air supply pipe 39, and the inner walls of the No. 1 air supply pipe 36 and the No. 2 air supply pipe 39 are both provided with solenoid valves.

[0037] Since the tube 6 is cut by laser, there are differences in local temperature, so the part to be cut needs to be preheated in advance to improve the cutting accuracy.

[0038] In this embodiment, an electric heating plate 40 is provided in the storage box 35. When the air pump transports gas into the storage box 35, the gas is first heated by the electric heating plate 40 and then blown into the pipe 6 through the No. 1 air supply pipe 36. During the blowing process, the welding slag splashed during cutting can also be blown into the pipe 6 to assist the preheating of the pipe 6, reduce energy consumption, and improve cutting efficiency. At the same time, the partition plate 14 can prevent the welding slag from entering the pipe 6 to maintain the cleanliness of the pipe 6.

[0039] Specifically, the gas can also enter the No. 1 conical cylinder 25 through the No. 2 gas supply pipe 39, and discharge the welding slag from the pipe 6 in the opposite direction, further improving the above-mentioned cleaning effect of the second partition 13.

[0040] like Fig.10and Fig.11 As shown, preferably, a No. 2 conical cylinder 26 is screwed to one side of the No. 1 conical cylinder 25 by bolts, a guide plate 28 is fixedly connected to the interior of the No. 2 conical cylinder 26, and a guide rod 29 is fixedly connected to the side of the guide plate 28 close to the No. 1 conical cylinder 25, and both the No. 2 conical cylinder 26 and the guide rod 29 are arranged in a conical shape.

[0041] Since gas blowing is used to assist the preheating of the pipe 6 , the hot air is blown to the same part of the pipe 6 , resulting in uneven preheating of the pipe 6 , which in turn affects the cutting effect of the pipe 6 .

[0042] In this embodiment, the gas is set to follow the No. 1 conical cylinder 25 into the No. 2 conical cylinder 26. The No. 2 conical cylinder 26 is set in a conical shape, and the opening diameter of the end away from the No. 1 conical cylinder 25 is larger than the end close to the No. 1 conical cylinder 25. After the airflow enters the No. 2 conical cylinder 26, under its conical contour, it cooperates with the conical guide rod 29 to guide the airflow to be dispersed on the inner wall of the No. 2 conical cylinder 26. A guide plate 28 is also provided at the opening of the No. 2 conical cylinder 26. The part of the guide plate 28 close to the inner wall of the No. 2 conical cylinder 26 is arc-shaped, so that the gas can be more closely attached to the inner wall of the pipe fitting 6, thereby improving the uniformity of preheating of the pipe fitting 6 and further reducing the probability of deformation of the pipe fitting 6 during the cutting process.

[0043] like Fig.13 As shown, preferably, a protective cylinder 10 is fixedly connected to the side of the No. 2 conical cylinder 26 away from the No. 1 conical cylinder 25, a blocking base 32 is fixedly connected to the inner wall of the protective cylinder 10, two corrugated baffles 33 are fixedly connected to the inner wall of the blocking base 32, and a blocking plate 34 is fixedly connected at the middle position of the two corrugated baffles 33.

[0044] Since the preheating work of the auxiliary pipe 6 is performed by the No. 1 air supply pipe 36, the scope of action is larger, resulting in heat loss.

[0045] In this embodiment, a protective tube 10 and a blocking base 32 are provided at the rear end of the second conical tube 26 to prevent heat from continuing to spread. The corrugated baffle 33 inside the blocking base 32 is in a corrugated shape to increase the heated area, and cooperates with the blocking plate 34 to accumulate heat in the preheating area, thereby improving the preheating effect.

[0046] like Fig. 9 and Fig.12 As shown, preferably, a plurality of support frames 24 distributed in a circular array are fixedly connected to the outer wall of the partition plate 14, a No. 1 spring 31 is fixedly connected to the inner wall of the support frame 24, the top of the No. 1 spring 31 is fixedly connected to a limiting base 30, the top of the limiting base 30 is fixedly connected to an arc-shaped extrusion plate 9, a weakening groove is provided at the middle position of the arc-shaped extrusion plate 9, and the arc-shaped extrusion plate 9 is arranged in an arc surface.

[0047] During the cutting process, the pipe 6 will be slightly deformed, which affects the cutting accuracy.

[0048] In this embodiment, the arc-shaped extrusion plate 9 is arranged in an arc shape to fit with the inner wall of the pipe fitting 6. During the cutting process, it cooperates with the No. 1 spring 31, the limiting base 30 and the support frame 24 to make it fit more closely with the inside of the pipe fitting 6, thereby supporting the pipe fitting 6 from the inside, and further reducing the probability of deformation of the pipe fitting 6 during cutting.

[0049] Example 4 like Fig.15 and Fig.16 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the output end of the electric push rod 37 is fixedly connected with a connecting plate 42, one side of the connecting plate 42 is fixedly connected with a piston rod 43, one end of the piston rod 43 away from the connecting plate 42 is fixedly connected with a piston plate 44, the outer wall of the piston plate 44 is slidably connected with a piston cylinder 41, the piston cylinder 41 and the piston plate 44 are in contact, the outer wall of the piston cylinder 41 is fixedly connected with a transport tube 45, one end of the transport tube 45 is fixedly connected with a limiting box 38, an air bag 46 is fixedly connected to the inner wall of the limiting box 38, one side of the air bag 46 is fixedly connected to a limiting baffle 49, one side of the limiting baffle 49 is fixedly connected with a lower sheet 47, the inner wall of the lower sheet 47 is fixedly connected with an anti-slip sheet 27, the side of the limiting baffle 49 close to the lower sheet 47 is fixedly connected with a No. 2 spring 48, and the side of the No. 2 spring 48 away from the limiting baffle 49 is fixedly connected to the inner wall of the limiting box 38.

[0050] Since the auxiliary cutting assembly is placed inside the pipe fitting 6 when the pipe fitting 6 is cut, the pipe fitting 6 cannot be quickly unloaded after being cut, thereby reducing the efficiency of cutting the pipe fitting 6.

[0051] In this embodiment, the electric push rod 37 is provided to first send the arc-shaped receiving plate 8 into the pipe 6 for cutting when in use. After the cutting is completed, the electric push rod 37 is reset and drives the piston rod 43 to move. At this time, the piston plate 44 moves in the piston cylinder 41 and squeezes the gas into the transport pipe 45. The airbag 46 connected to it expands and squeezes the lower material piece 47 to move. It should be noted that the top of the lower material piece 47 is an outward-turned arc surface, and an anti-slip sheet 27 is also provided on the arc surface. When the piston cylinder 41 moves, the cut steel pipe can be squeezed, which is convenient for rapid material unloading and improves work efficiency.

[0052] like Figure 1 and Fig.17As shown, preferably, a collecting box 7 is fixedly connected to the inner wall of the device body 1, a filter plate 51 is fixedly connected to the top of the collecting box 7, a chip box 50 is slidably connected to the inner wall of the collecting box 7, the filter plate 51 is inclined, and a slide groove is provided on the surface of the filter plate 51.

[0053] Since the pipe 6 generates debris during the cutting process, the accumulation of debris affects the cutting of the equipment and is time-consuming and labor-intensive to clean up. In addition, the debris in the air affects the health of the workers.

[0054] In this embodiment, after the steel pipe falls under the action of the lower sheet 47, it slides into the collection box 7 along with the filter plate 51, and the debris falls into the chip box 50 along with the filter plate 51 for centralized processing.

[0055] The steel component is fixed in the lathe chuck 4 through the loading box 2, and the power range of the equipment is adjusted to between 2000W and 4000W through the operating table 3, and the speed range of the equipment is adjusted to between 28m / min and 35m / min. The arc-shaped receiving plate 8 is placed under the part to be cut of the steel component, and the steel component is cut using the laser cutting head 5.

[0056] The working principle of the laser cutting device and process for preventing deformation of steel components is described in detail below.

[0057] like Figure 1-Figure 17As shown, first, the pipe 6 is fixed in the lathe chuck 4, and the arc-shaped receiving plate 8 is sent into the pipe 6 by the electric push rod 37. At this time, the pipe 6 is cut by the laser cutting head 5. The high-temperature welding slag generated during the cutting process splashes downward and first contacts the second partition 13. The second partition 13 is installed inside the arc-shaped receiving plate 8 through the arc-shaped pieces 17 on both sides, and the arc-shaped pieces 17 are fixed to the inner side of the arc-shaped receiving plate 8 through the tension rope at the top. Under the action of the tension rope, the second partition 13 has a movable space, which cooperates with the second partition 13 itself. The second screen 13 has a flexible structure, and absorbs the potential energy of the welding slag when the welding slag splashes on the surface of the second screen 13. At the same time, the second screen 13 is also provided with a metal mesh 12 and a first screen 11 at the bottom, so as to further improve the interception effect of the second screen 13 on the welding slag. When there is a lot of welding slag accumulated on its surface, the cleaning plate 20 can be moved to clean the welding slag remaining on the surface. Specifically, the top of the cleaning plate 20 is arranged in an inclined surface, and it will hit the first baffle plate 18 and the second baffle plate 19 during the movement. In combination with the mesh setting of the second screen 13, the second screen 13 hits the cleaning plate 20. The cleaning plate 20 will shake in a ripple shape when struck, thereby keeping the surface of the second screen 13 clean. At the same time, the cleaning plate 20 will return to its original position under the action of the elastic rope 21. The magnet 22 inside it can quickly absorb iron-containing slag, improve the recycling rate, and increase the effect of rapid cooling of welding slag. At this time, the air pump transports the gas to the storage box 35, heats it through the electric heating plate 40, and then blows it into the pipe 6 through the No. 1 air supply pipe 36. During the blowing process, the welding slag splashed during cutting can also be blown into the pipe 6 to assist the preheating of the pipe 6. The gas is blown into the pipe 6 with the No. 1 conical cylinder 25 enters the second conical cylinder 26. The second conical cylinder 26 is set in a conical shape. The opening diameter of the end away from the first conical cylinder 25 is larger than the end close to the first conical cylinder 25. After the airflow enters the second conical cylinder 26, under its conical profile, it cooperates with the conical guide rod 29 to guide the airflow to disperse on the inner wall of the second conical cylinder 26. A guide plate 28 is also provided at the opening of the second conical cylinder 26. The part of the guide plate 28 close to the inner wall of the second conical cylinder 26 is in an arc shape, so that the gas can be more closely attached to the inner wall of the pipe 6, thereby improving the uniformity of preheating of the pipe 6. After the cutting is completed, the electric push rod 37 is reset and drives the piston rod 43 to move. At this time, the piston plate 44 moves in the piston cylinder 41 and squeezes the gas into the transport pipe 45. The air bag 46 connected to it expands and squeezes the lower sheet 47 to move. It should be noted that the top of the lower sheet 47 is an outward-turned arc surface, and an anti-slip sheet 27 is also provided on the arc surface. When the piston cylinder 41 moves, it can squeeze the cut steel pipe, which is convenient for rapid material unloading and improves work efficiency.

[0058] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A laser cutting device for preventing deformation of a steel member, comprising a device body (1); characterized in that: A loading box (2) is fixedly connected to one side of the device body (1), an operating table (3) is fixedly connected to the front end of the device body (1), a lathe chuck (4) is fixedly connected to the inner side wall of the device body (1), a laser cutting head (5) is fixedly connected to the top of the inner side wall of the device body (1), a pipe fitting (6) is plugged into the inner side wall of the lathe chuck (4), and an auxiliary cutting component is arranged on the inner side wall of the pipe fitting (6), and the auxiliary cutting component is used to reduce deformation when cutting steel components; The auxiliary cutting assembly comprises an arc-shaped receiving plate (8) arranged on the inner wall of the pipe (6), one side of the arc-shaped receiving plate (8) is fixedly connected to an electric push rod (37), a second partition net (13) is movably connected at the middle position of the arc-shaped receiving plate (8), the bottom of the second partition net (13) is fixedly connected to a metal mesh (12), the bottom of the metal mesh (12) is fixedly connected to a first partition net (11), both sides of the second partition net (13) are fixedly connected to arc-shaped sheets (17), the arc-shaped sheets (17) and the arc-shaped receiving plate (8) are slidably connected, both sides of the arc-shaped sheet (17) are provided with tension ropes, the tension ropes are fixedly connected to the inner wall of the arc-shaped receiving plate (8), and one side of the arc-shaped receiving plate (8) is fixedly connected to a partition plate (14).

2. The laser cutting device for preventing deformation of steel components according to claim 1, characterized in that: The bottom of the first partition net (11) is fixedly connected to a plurality of first baffle plates (18) and second baffle plates (19) distributed in a linear array, the first baffle plates (18) and the second baffle plates (19) are installed in an interlaced manner, the bottom of the first partition net (11) is slidably connected to a cleaning plate (20), one side of the cleaning plate (20) is fixedly connected to an elastic rope (21), a magnet (22) is inserted into the interior of the cleaning plate (20), the top of the cleaning plate (20) is arranged in an inclined surface, the bottom of the arc-shaped receiving plate (8) is inserted with an arch plate (16), the top of the arch plate (16) and the bottom of the cleaning plate (20) are slidably connected, the bottom of the arch plate (16) is slidably connected to a chip collecting groove (15), and the partition plate (14) is fixedly connected to a side of the arc-shaped receiving plate (8) with a limiting inclined plate (23), and the limiting inclined plate (23) is arranged in an inclined surface.

3. The laser cutting device for preventing deformation of steel components according to claim 2, characterized in that: A storage box (35) is provided on the inner side wall of the device body (1), and the storage box (35) is connected to an external air pump through a pipeline. An electric heating plate (40) is fixedly connected to the inner side wall of the storage box (35). A first air supply pipe (36) and a second air supply pipe (39) are fixedly connected to the bottom of the storage box (35). A first conical cylinder (25) is fixedly connected to the side of the partition plate (14) away from the arc-shaped receiving plate (8). The bottom of the first conical cylinder (25) is fixedly connected to the second air supply pipe (39), and the inner walls of the first air supply pipe (36) and the second air supply pipe (39) are both provided with solenoid valves.

4. The laser cutting device for preventing deformation of steel components according to claim 3, characterized in that: A second conical cylinder (26) is screwed to one side of the first conical cylinder (25) via bolts, a guide plate (28) is fixedly connected to the interior of the second conical cylinder (26), a guide rod (29) is fixedly connected to the side of the guide plate (28) close to the first conical cylinder (25), and the second conical cylinder (26) and the guide rod (29) are both arranged in a conical shape.

5. The laser cutting device for preventing deformation of steel components according to claim 4, characterized in that: A protective cylinder (10) is fixedly connected to a side of the second conical cylinder (26) away from the first conical cylinder (25); a blocking base (32) is fixedly connected to the inner side wall of the protective cylinder (10); two corrugated baffles (33) are fixedly connected to the inner side wall of the blocking base (32); and a blocking plate (34) is fixedly connected at a middle position between the two corrugated baffles (33).

6. The laser cutting device for preventing deformation of steel components according to claim 5, characterized in that: A plurality of support frames (24) distributed in a circumferential array are fixedly connected to the outer side wall of the partition plate (14); a No. 1 spring (31) is fixedly connected to the inner side wall of each support frame (24); the top of each No. 1 spring (31) is fixedly connected to a limit base (30); the top of each limit base (30) is fixedly connected to an arc-shaped extrusion plate (9); a weakening groove is provided at the middle position of the arc-shaped extrusion plate (9); and the arc-shaped extrusion plate (9) is arranged in an arc shape.

7. The laser cutting device for preventing deformation of steel components according to claim 1, characterized in that: The output end of the electric push rod (37) is fixedly connected to a connecting plate (42), one side of the connecting plate (42) is fixedly connected to a piston rod (43), one end of the piston rod (43) away from the connecting plate (42) is fixedly connected to a piston plate (44), the outer wall of the piston plate (44) is slidably connected to a piston cylinder (41), the piston cylinder (41) and the piston plate (44) are in close contact, the outer wall of the piston cylinder (41) is fixedly connected to a transport pipe (45), one end of the transport pipe (45) is fixedly connected to a limit box (38), An airbag (46) is fixedly connected to the inner wall of the limit box (38), one side of the airbag (46) is fixedly connected to a limit baffle (49), one side of the limit baffle (49) is fixedly connected to a lower material sheet (47), an anti-slip sheet (27) is fixedly connected to the inner wall of the lower material sheet (47), a side of the limit baffle (49) close to the lower material sheet (47) is fixedly connected to a second spring (48), and a side of the second spring (48) away from the limit baffle (49) is fixedly connected to the inner wall of the limit box (38).

8. The laser cutting device for preventing deformation of steel components according to claim 7, characterized in that: A collecting box (7) is fixedly connected to the inner side wall of the device body (1), a filter plate (51) is fixedly connected to the top of the collecting box (7), and a chip collecting box (50) is slidably connected to the inner side wall of the collecting box (7).

9. The laser cutting device for preventing deformation of steel components according to claim 8, characterized in that: The filter plate (51) is arranged in an inclined manner, and a sliding groove is provided on the surface of the filter plate (51).

10. A laser cutting process for preventing deformation of steel components, applicable to the laser cutting device according to any one of claims 7 to 9, characterized in that: The steel component is fixed in a lathe chuck (4) through a loading box (2), the power range of the equipment is adjusted to between 2000W and 4000W through an operating table (3), and the speed range of the equipment is adjusted to between 28m / min and 35m / min, and an arc-shaped receiving plate (8) is placed under the part of the steel component to be cut, and the steel component is cut using a laser cutting head (5).

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