Steel structure cutting equipment for road guardrail production and cutting method thereof

Abstract

The application discloses a kind of steel structure cutting equipment and cutting method for road guardrail production, it is related to pipe cutting technical field, including base, support being installed at the top of base and laser head being installed in support inside, further include: conveying mechanism, for conveying steel pipe to be cut;Cutting mechanism, for driving steel pipe rotation;Drive mechanism, for driving conveying mechanism and cutting mechanism operation respectively;Material slag collection mechanism, for collecting material slag generated by laser cutting;Discharge slag removal mechanism, for cutting off steel pipe and collected material slag discharge;The steel structure cutting equipment and cutting method for road guardrail production, the material slag generated in cutting steel pipe is blocked into the inside of steel pipe by two sealing rings, and then the generated material slag is entered into the inside pipe by collecting groove, avoid the problem that steel pipe still needs to be cleaned inside after passing through laser cutting.

Description

Technical Field

[0001] This invention relates to the field of pipe cutting technology, specifically to a steel structure cutting device and cutting method for road guardrail production. Background Technology

[0002] The road has a large number of vehicles, and road guardrails are fixed in the middle of the lanes in different directions. The guardrails consist of posts, bases and beams, with the posts mostly being steel pipe structures.

[0003] A laser cutting machine for steel pipes is disclosed in patent announcement number CN217647738U, including a base, a side plate fixedly installed on the base, a rotating tube rotatably installed in the side plate, an installation plate fixedly installed inside the rotating tube, a first rotating power component fixedly installed on the installation plate, a lead screw fixedly connected to the output end of the first rotating power component, symmetrically distributed moving plates rotatably installed on the lead screw, and a first clamping roller rotatably installed on the surfaces of the moving plates that slide in contact with the installation plate and are close to each other.

[0004] The aforementioned technologies have the following drawbacks: the slag produced during the cutting of steel pipes will obliquely hit the inner wall of the steel pipes and adhere to the inner wall. After the cut steel pipes are discharged, the inner wall of the steel pipes still needs to be cleaned manually, which increases the workload of the workers. Summary of the Invention

[0005] The purpose of this invention is to provide a steel structure cutting device and its cutting method for road guardrail production, so as to solve the problem in the prior art that when cutting steel pipes, the slag generated will obliquely hit the inner wall of the steel pipe and adhere to the inner wall of the steel pipe. After the cut steel pipe is discharged, the inner wall of the steel pipe still needs to be manually cleaned.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a steel structure cutting device for road guardrail production, comprising a base, a bracket mounted on top of the base, and a laser head mounted inside the bracket, and further comprising:

[0007] A conveying mechanism, mounted on top of the base, is used to convey the steel pipes to be cut;

[0008] A ring-cutting mechanism, which is mounted on top of the base and connected to the conveying mechanism, is used to drive the steel pipe to rotate;

[0009] The drive mechanism, which is mounted on top of the base, is used to drive the conveying mechanism and the ring cutting mechanism respectively.

[0010] The slag collection mechanism, installed on top of the base, is used to collect the slag generated during laser cutting.

[0011] The material discharge and slag removal mechanism, which is installed on the base, is used to discharge the cut steel pipes and collected slag.

[0012] Furthermore, the conveying mechanism includes two fixed seats mounted on the top of the base and a slide seat disposed between the two fixed seats;

[0013] Both the fixed base and the sliding base have through-grooves inside;

[0014] A first drive shaft is rotatably connected between the two fixed seats, and a reciprocating screw is fixedly sleeved on the outside of the first drive shaft. The slide is screwed to the outside of the reciprocating screw.

[0015] A guide rod is also fixedly connected between the two fixed seats, and the slide is also slidably sleeved on the outside of the guide rod;

[0016] The first transmission shaft is connected to the drive mechanism.

[0017] Furthermore, a clamping assembly is installed on the outer wall of one side of the slide, the clamping assembly including an annular seat rotatably connected to the outer wall of one side of the slide and a plurality of hidden slots opened inside the annular seat;

[0018] A clamping block is slidably connected inside the hidden groove, and a hydraulic cylinder is fixedly connected to the outer wall of one side of the clamping block. The fixed end of the hydraulic cylinder is fixedly connected to the inside of the annular seat.

[0019] Furthermore, the ring cutting mechanism includes a second drive shaft rotatably connected between two fixed seats, a connecting sleeve slidably sleeved outside the second drive shaft, a first gear fixedly sleeved outside the connecting sleeve, and a gear ring fixedly sleeved outside the annular seat.

[0020] The connecting sleeve is rotatably connected to the inside of the slide block;

[0021] The first gear meshes with the gear ring;

[0022] The second transmission shaft is connected to the drive mechanism.

[0023] Furthermore, the drive mechanism includes a first motor mounted on the outer wall of one of the fixed seats, a first one-way gear mounted outside the first drive shaft, and a second one-way gear mounted outside the second drive shaft;

[0024] A second gear is fixedly sleeved on the outside of the output shaft of the first motor, and the second gear meshes with the first one-way gear and the second one-way gear respectively.

[0025] Furthermore, the slag collection mechanism includes an inner tube and a collection trough opened at the top of one end of the inner tube;

[0026] The inner tube is fixedly fitted with two sealing rings, which are located on both sides of the collection groove.

[0027] Another mounting bracket has a sensor installed on the outer wall near the slide to monitor the position of the slide.

[0028] Furthermore, the material discharge and slag removal mechanism includes a fixed disc that is fixedly sleeved on the outside of the inner tube, a sliding disc that is slidably connected to the outside of the inner tube, and a slag removal rod that is slidably connected to the inside of the inner tube;

[0029] The sliding plate and the slag removal rod are fixed together by multiple sliders;

[0030] The outer wall of the inner tube is provided with multiple sliding grooves, and the slider slides inside the sliding grooves;

[0031] A spring is also fixed between the fixed plate and the sliding plate, and the spring is sleeved on the outside of the inner tube.

[0032] Furthermore, the material discharge and slag removal mechanism also includes two fixed blocks fixed to the top of the base, a drive shaft rotatably connected between the two fixed blocks, and a second motor installed on the outer wall of one of the fixed blocks;

[0033] The other end of the inner tube is fixedly sleeved on the outside of the drive shaft;

[0034] The output end of the second motor is fixedly connected to one end of the drive shaft.

[0035] Furthermore, a fan-shaped cavity is installed inside the base, and a feeding cavity connected to the bottom of the fan-shaped cavity is installed therewith.

[0036] A method for cutting steel structures for road guardrail production, which employs a steel structure cutting device for road guardrail production, is characterized by comprising the following steps:

[0037] S1. Insert the steel pipe to be cut into the pipe groove in the fixed seat and the slide, and clamp the steel pipe by the clamping assembly;

[0038] S2. The steel pipe is moved by the conveying mechanism, so that the steel pipe moves along the outside of the inner pipe, the slide plate moves accordingly, and the slag removal rod moves away from the collection tank.

[0039] S3. By activating the laser head and driving the steel pipe to rotate through the circumferential cutting mechanism, the steel pipe is subjected to circumferential cutting.

[0040] S4. The slag produced by laser cutting of steel pipe enters the inner tube through the collection tank. By driving the inner tube to rotate, the inner tube rotates along the inside of the fan-shaped cavity. When the inner tube is vertically downward, the steel pipe of the inner tube falls along the inner wall of the feeding cavity. Through the rebound force of the spring, the slag removal rod is driven to clean the slag that has entered the inner tube.

[0041] S5. The inner tube is then driven to rotate and reset, and the steel pipe continues to move along the outside of the inner tube via the conveying mechanism.

[0042] Compared with the prior art, the steel structure cutting equipment and cutting method for road guardrail production provided by the present invention have the following beneficial effects:

[0043] 1. The slag generated during the cutting of the steel pipe is blocked from entering the interior of the steel pipe by two sealing rings, and then the slag is collected in the inner pipe through the collection tank, thus avoiding the problem of cleaning the inside of the steel pipe after laser cutting.

[0044] 2. After the steel pipe is cut, the inner pipe and the cut-off steel pipe on the outside are driven to rotate downward along the inner wall of the fan-shaped cavity. When the inner pipe and the steel pipe rotate to a vertical downward position, the steel pipe on the outside of the inner pipe will automatically fall to the top of the conveyor below due to its own gravity. Through the rebound force of the spring, the slag removal rod will move downward along the outer wall of the inner pipe, pushing out the slag inside the inner pipe, thus solving the problem of slag adhering to the inside of the inner pipe and making it difficult to clean. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0046] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0047] Figure 2 This is a first-view schematic diagram of the conveying mechanism and the ring cutting mechanism of the present invention;

[0048] Figure 3 This is a second-view schematic diagram of the conveying mechanism and the ring cutting mechanism of the present invention;

[0049] Figure 4 This is a schematic diagram of the ring-cutting mechanism and clamping assembly of the present invention;

[0050] Figure 5 This is a schematic diagram of the external structure of the slag collection mechanism and the slag discharge and removal mechanism of the present invention;

[0051] Figure 6 This is a schematic diagram of the internal structure of the slag collection mechanism and the slag discharge and removal mechanism of the present invention;

[0052] Figure 7 This is a schematic diagram of the fan-shaped cavity and the feeding cavity structure of the present invention.

[0053] Explanation of reference numerals in the attached figures:

[0054] 1. Base; 2. Bracket; 3. Laser head; 4. Fixed seat; 5. Slide; 6. First drive shaft; 7. Reciprocating screw; 8. Guide rod; 9. Ring seat; 10. Hidden groove; 11. Clamping block; 12. Hydraulic cylinder; 13. Second drive shaft; 14. Connecting sleeve; 15. First gear; 16. Gear ring; 17. First motor; 18. First one-way gear; 19. Second one-way gear; 20. Second gear; 21. Inner tube; 22. Collection groove; 23. Sealing ring; 24. Fixed plate; 25. Slide plate; 26. Slag removal rod; 27. Slider; 28. Slide groove; 29. ​​Spring; 30. Fixed block; 31. Drive shaft; 32. Second motor; 33. Sector cavity; 34. Discharge cavity; 35. Sensor. Detailed Implementation

[0055] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0056] Example 1: Please refer to Figure 1 - Figure 7 A steel structure cutting device for road guardrail production includes a base 1, a bracket 2 mounted on top of the base 1, and a laser head 3 mounted inside the bracket 2. It also includes:

[0057] A conveying mechanism, installed on top of the base 1, is used to convey steel pipes to be cut. The conveying mechanism includes two fixed seats 4 installed on top of the base 1 and a slide 5 disposed between the two fixed seats 4. Both the fixed seats 4 and the slide 5 have through-holes. A first drive shaft 6 is rotatably connected between the two fixed seats 4. A reciprocating screw 7 is fixedly sleeved on the outside of the first drive shaft 6, and the slide 5 is screwed to the outside of the reciprocating screw 7. A guide rod 8 is also fixedly connected between the two fixed seats 4, and the slide 5 is also slidably sleeved on the outside of the guide rod 8. The first drive shaft 6 is connected to a drive mechanism.

[0058] The steel pipe to be cut is inserted into the groove in the fixed seat 4 and the slide 5. The steel pipe is clamped by the clamping assembly. The first transmission shaft 6 is driven to rotate by the drive mechanism, and the reciprocating screw 7 rotates accordingly, causing the slide 5 to move from the right end of the reciprocating screw 7 to its left end. During this process, the steel pipe moves synchronously by the clamping assembly and moves along the outside of the inner tube 21.

[0059] After the steel pipe is cut, the first drive shaft 6 and the reciprocating screw 7 continue to rotate through the drive mechanism, which drives the slide 5 to move from the left end to the right end of the reciprocating screw 7. During this process, after the steel pipe moves a certain distance, the clamping component is controlled to contact the clamping of the steel pipe, and then the steel pipe stops moving. After the slide 5 resets to the right, the clamping component is controlled to clamp the steel pipe again.

[0060] A clamping assembly is installed on the outer wall of one side of the slide 5. The clamping assembly includes an annular seat 9 rotatably connected to the outer wall of one side of the slide 5 and multiple hidden slots 10 opened inside the annular seat 9. The multiple hidden slots 10 are arranged in a ring array with the axis of the annular seat 9 as the center. A clamping block 11 is slidably connected inside the hidden slot 10. A hydraulic cylinder 12 is fixedly connected to the outer wall of one side of the clamping block 11. The fixed end of the hydraulic cylinder 12 is fixedly connected to the inside of the annular seat 9.

[0061] By controlling multiple hydraulic cylinders 12 to extend synchronously, each clamping block 11 is driven to clamp the steel pipe synchronously, so that when the slide block 5 moves, the steel pipe moves synchronously.

[0062] By controlling multiple hydraulic cylinders 12 to contract synchronously, each clamping block 11 is moved away from the steel pipe, thus releasing the clamp on the steel pipe.

[0063] A ring-cutting mechanism, mounted on top of the base 1 and connected to the conveying mechanism, is used to drive the steel pipe to rotate. The ring-cutting mechanism includes a second drive shaft 13 rotatably connected between two fixed seats 4, a connecting sleeve 14 slidably sleeved outside the second drive shaft 13, a first gear 15 fixedly sleeved outside the connecting sleeve 14, and a gear ring 16 fixedly sleeved outside the annular seat 9. The connecting sleeve 14 is rotatably connected inside the slide 5. The first gear 15 meshes with the gear ring 16. The second drive shaft 13 is connected to the drive mechanism.

[0064] The second drive shaft 13 is driven to rotate by the drive mechanism. When the second drive shaft 13 rotates, it drives the connecting sleeve 14 to rotate synchronously. Through the meshing action between the first gear 15 and the gear ring 16, the ring seat 9 is driven to rotate synchronously, which in turn drives the clamped steel pipe to rotate synchronously, and cooperates with the laser head 3 to cut the steel pipe.

[0065] When the slide block 5 moves, it drives the connecting sleeve 14 to slide synchronously along the outside of the second transmission shaft 13, so that the first gear 15 and the gear ring 16 always remain in a meshing state.

[0066] A drive mechanism, mounted on the top of the base 1, is used to drive the conveying mechanism and the ring cutting mechanism respectively. The drive mechanism includes a first motor 17 mounted on the outer wall of one of the fixed bases 4, a first one-way gear 18 mounted on the outside of the first transmission shaft 6, and a second one-way gear 19 mounted on the outside of the second transmission shaft 13. A second gear 20 is fixedly sleeved on the outside of the output shaft of the first motor 17, and the second gear 20 meshes with the first one-way gear 18 and the second one-way gear 19 respectively.

[0067] By controlling the first motor 17 to drive the second gear 20 to rotate forward, the first transmission shaft 6 is driven to rotate through the meshing action between the second gear 20 and the first one-way gear 18. At this time, the second one-way gear 19 also rotates, but the second transmission shaft 13 does not rotate.

[0068] By controlling the first motor 17 to drive the second gear 20 to reverse, the second gear 20 and the second one-way gear 19 mesh together, driving the second transmission shaft 13 to rotate. At this time, the first one-way gear 18 also rotates, but the first transmission shaft 6 does not rotate.

[0069] The slag collection mechanism is installed on the top of the base 1 and is used to collect the slag generated by laser cutting. The slag collection mechanism includes an inner tube 21 and a collection groove 22 opened at the top of one end of the inner tube 21. Two sealing rings 23 are fixedly sleeved on the outside of the inner tube 21, and the two sealing rings 23 are respectively located on both sides of the collection groove 22. A sensor 35 is installed on the outer wall of another fixed base 4 near the slide 5 to monitor the position of the slide 5.

[0070] The laser head 3 is located directly above the center between the two sealing rings 23. The laser head 3 cuts the steel pipe and the resulting slag is blocked by the two sealing rings 23 from entering the interior of the steel pipe. The slag is then collected in the collection groove 22 and enters the interior of the inner tube 21, thus avoiding the need to clean the inside of the steel pipe after laser cutting.

[0071] The material discharge and slag removal mechanism, mounted on the base 1, is used to discharge the cut steel pipe and collected slag. The mechanism includes a fixed disc 24 sleeved on the outside of the inner tube 21, a sliding disc 25 slidably connected to the outside of the inner tube 21, and a slag removal rod 26 slidably connected to the inside of the inner tube 21. The sliding disc 25 and the slag removal rod 26 are fixedly connected together by multiple sliders 27. Multiple grooves 28 are formed on the outer wall of the inner tube 21, and the sliders 27 slide within the grooves 28. A spring 29 is also fixedly connected between the fixed disc 24 and the sliding disc 25, and the spring 29 is sleeved on the outside of the inner tube 21. The discharge and slag removal mechanism also includes two fixed blocks 30 fixed to the top of the base 1, a drive shaft 31 rotatably connected between the two fixed blocks 30, and a second motor 32 installed on the outer wall of one of the fixed blocks 30; the other end of the inner tube 21 is fixedly sleeved on the outside of the drive shaft 31; the output end of the second motor 32 is fixedly connected to one end of the drive shaft 31; a fan-shaped cavity 33 is installed inside the base 1; a discharge cavity 34 connected to the bottom of the fan-shaped cavity 33 is installed; a conveyor can also be provided below the discharge cavity 34 to transport the cut steel pipe away.

[0072] After the steel pipe is cut, the slide block 5 and the steel pipe to be cut are first driven to move to the right. When the sensor 35 detects that the distance the slide block 5 has moved to the right has reached the set value, it sends a signal to the controller. The controller controls each hydraulic cylinder 12 to retract, releasing the clamp on the steel pipe, so that the slide block 5 continues to move to the right on its own, while the steel pipe stops moving to the right. When the slide block 5 and the steel pipe move to the left to reach the set value, the controller will not control each hydraulic cylinder 12 to retract. The set value is the distance between the steel pipe cutting position and the left fixed seat 4. That is, when one end of the steel pipe to be cut is retracted into the pipe groove in the left fixed seat 4, the clamp on the steel pipe is released. The purpose of doing this is to provide rotation space for the rotation of the inner tube 21 and the steel pipe cut off outside.

[0073] The conveying mechanism drives the steel pipe to move. As the steel pipe moves along the outside of the inner pipe 21, one end of the steel pipe abuts against the sliding plate 25. As the steel pipe continues to move, it drives the sliding plate 25 to move to the left, compressing the spring 29. The slider 27 moves synchronously along the inner wall of the chute 28, simultaneously driving the slag removal rod 26 to move synchronously to the left. After the steel pipe is cut, the second motor 32 is controlled to drive the drive shaft 31 to rotate, causing one end of the inner pipe 21 to rotate downwards, thereby driving the inner pipe 21 and the cut-off steel pipe along the fan-shaped cavity 33. The inner wall rotates downwards, and the fan-shaped cavity 33 is used to limit the steel pipe. When the inner tube 21 and the steel pipe rotate to a vertical downward position, the steel pipe outside the inner tube 21 falls automatically to the top of the conveyor below due to its own gravity. Through the rebound force of the spring 29, the sliding plate 25 is driven to slide downwards along the outer wall of the inner tube 21. The slider 27 drives the slag removal rod 26 to move downwards synchronously along the outer wall of the inner tube 21, pushing out the slag inside the inner tube 21, thus solving the problem of slag adhering to the inside of the inner tube 21 and making it difficult to clean.

[0074] Example 2: Please refer to Figure 1 - Figure 7 A method for cutting steel structures for road guardrail production, which uses a steel structure cutting device for road guardrail production, includes the following steps:

[0075] S1. Insert the steel pipe to be cut into the pipe groove in the fixed seat 4 and the slide 5, and clamp the steel pipe by the clamping assembly;

[0076] S2. The steel pipe is moved by the conveying mechanism, so that the steel pipe moves along the outside of the inner pipe 21, the slide plate 25 moves accordingly, and the slag removal rod 26 moves away from the collection tank 22.

[0077] S3. By activating the laser head 3 and driving the steel pipe to rotate through the circumferential cutting mechanism, the steel pipe is subjected to circumferential cutting.

[0078] S4. The slag generated from laser cutting of steel pipe enters the inner tube 21 through the collection trough 22. By driving the inner tube 21 to rotate, the inner tube 21 rotates along the inside of the fan-shaped cavity 33. When the inner tube 21 is vertically downward, the steel pipe of the inner tube 21 falls along the inner wall of the feeding cavity 34. Through the rebound force of the spring 29, the slag removal rod 26 is driven to clean the slag that has entered the inner tube 21.

[0079] S5. Drive the inner tube 21 to rotate and reset, and drive the steel pipe to continue moving through the conveying mechanism, moving along the outside of the inner tube 21.

[0080] Working principle: In use, the steel pipe to be cut is inserted into the groove in the fixed seat 4 and the slide 5. The steel pipe is clamped by the clamping assembly. The drive mechanism drives the first transmission shaft 6 to rotate, and the reciprocating screw 7 rotates accordingly, causing the slide 5 to move from the right end of the reciprocating screw 7 to its left end. During this process, the clamping assembly drives the steel pipe to move synchronously. The steel pipe moves along the outside of the inner tube 21, and one end of the steel pipe will abut against the slide 25. As the steel pipe continues to move, it drives the slide 25 to move to the left, the spring 29 is compressed, and the slider 27 moves synchronously along the inner wall of the groove 28. At the same time, it drives the slag removal rod 26 to move synchronously to the left. When the laser head 3 cuts the steel pipe, the drive mechanism drives the first transmission shaft 6 to rotate. The second drive shaft 13 rotates, driving the connecting sleeve 14 to rotate synchronously. Through the meshing action between the first gear 15 and the gear ring 16, the ring seat 9 rotates synchronously, thereby driving the clamped steel pipe to rotate synchronously. This, in conjunction with the laser head 3, cuts the steel pipe. The laser head 3 is located directly above the center position between the two sealing rings 23. The slag produced by the laser head 3 cutting the steel pipe is blocked by the two sealing rings 23 from entering the interior of the steel pipe. The slag then enters the inner tube 21 through the collection groove 22, avoiding the need for internal cleaning of the steel pipe after laser cutting. After the steel pipe is cut, the drive slide 5 and the steel pipe to be cut are first moved to the right. After sensor 35 detects that the slide 5 has moved a set distance to the right, it sends a signal to the controller. The controller then controls the hydraulic cylinders 12 to retract, releasing the clamp on the steel pipe. This allows the slide 5 to continue moving to the right independently, while the steel pipe stops moving to the right. The set distance is the distance between the steel pipe cutting position and the left fixed seat 4. Specifically, the clamp on the steel pipe is released when one end of the steel pipe to be cut retracts into the groove in the left fixed seat 4. This provides rotation space for the inner tube 21 and the steel pipe cut off externally. By controlling the second motor 32 to drive the drive shaft 31 to rotate, one end of the inner tube 21 rotates downwards, thereby rotating the inner tube 21 and the cut-off steel pipe externally. The steel pipe rotates downward along the inner wall of the sector cavity 33, which is used to limit the movement of the steel pipe. When the inner tube 21 and the steel pipe rotate to a vertical downward position, the steel pipe outside the inner tube 21 falls automatically to the top of the conveyor below due to its own gravity. Through the rebound force of the spring 29, the sliding plate 25 is driven to slide downward along the outer wall of the inner tube 21. The slider 27 drives the slag removal rod 26 to move downward synchronously along the outer wall of the inner tube 21, pushing out the slag inside the inner tube 21. This solves the problem of slag adhering to the inside of the inner tube 21 and making it difficult to clean. Finally, the inner tube 21 is driven to rotate back to its original position. The conveying mechanism drives the steel pipe to continue moving along the outside of the inner tube 21. This cycle is repeated to cut the steel pipe.

[0081] It should be noted that the device structure and accompanying drawings of this invention mainly describe the principle of the invention. The technical details of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art, understanding the principles of the invention, can clearly understand the specifics of its power mechanism, power supply system, and control system. The control method described in the application is automatic control via a controller, and the controller's control circuit can be implemented through simple programming by those skilled in the art. The above description only illustrates certain exemplary embodiments of the invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of this invention.

Claims

1. A steel structure cutting device for road guardrail production, comprising a base, a bracket mounted on top of the base, and a laser head mounted inside the bracket, characterized in that, Also includes: A conveying mechanism, mounted on top of the base, is used to convey the steel pipes to be cut; A ring-cutting mechanism, which is mounted on top of the base and connected to the conveying mechanism, is used to drive the steel pipe to rotate; The drive mechanism, which is mounted on top of the base, is used to drive the conveying mechanism and the ring cutting mechanism respectively. The slag collection mechanism, installed on top of the base, is used to collect the slag generated during laser cutting. The material discharge and slag removal mechanism, which is installed on the base, is used to discharge the cut steel pipes and collected slag. The slag collection mechanism includes an inner tube and a collection trough opened at the top of one end of the inner tube; two sealing rings are fixedly sleeved on the outside of the inner tube, and the two sealing rings are located on both sides of the collection trough; a sensor is installed on the outer wall of another fixed seat near the slide to monitor the position of the slide. The material discharge and slag removal mechanism includes a fixed plate that is fixedly sleeved on the outside of the inner tube, a sliding plate that is slidably connected to the outside of the inner tube, and a slag removal rod that is slidably connected to the inside of the inner tube; the sliding plate and the slag removal rod are fixedly connected together by multiple sliders; multiple sliding grooves are opened on the outer wall of the inner tube, and the sliders are slidably connected to the inside of the sliding grooves; a spring is also fixedly connected between the fixed plate and the sliding plate, and the spring is sleeved on the outside of the inner tube. The material discharge and slag removal mechanism also includes two fixed blocks fixed to the top of the base, a drive shaft rotatably connected between the two fixed blocks, and a second motor installed on the outer wall of one of the fixed blocks; the other end of the inner tube is fixedly sleeved on the outside of the drive shaft; the output end of the second motor is fixedly connected to one end of the drive shaft. The base has a fan-shaped cavity inside, and a feeding cavity connected to the bottom of the fan-shaped cavity is installed thereto.

2. A steel structure cutting device for road guardrail production according to claim 1, characterized in that, The conveying mechanism includes two fixed seats mounted on top of the base and a slide seat disposed between the two fixed seats; Both the fixed base and the slide have through-grooves running through their interiors; A first drive shaft is rotatably connected between two fixed seats. A reciprocating screw is fixedly sleeved on the outside of the first drive shaft, and a slide is screwed onto the outside of the reciprocating screw. A guide rod is fixed between the two fixed seats, and the slide is slidably sleeved on the outside of the guide rod; The first drive shaft is connected to the drive mechanism.

3. A steel structure cutting device for road guardrail production according to claim 2, characterized in that, A clamping assembly is installed on the outer wall of one side of the slide. The clamping assembly includes an annular seat rotatably connected to the outer wall of one side of the slide and multiple hidden slots opened inside the annular seat. A clamping block is slidably connected inside the hidden groove, and a hydraulic cylinder is fixedly connected to the outer wall of one side of the clamping block. The fixed end of the hydraulic cylinder is fixedly connected to the inside of the annular seat.

4. A steel structure cutting device for road guardrail production according to claim 3, characterized in that, The ring cutting mechanism includes a second drive shaft rotatably connected between two fixed seats, a connecting sleeve slidably sleeved outside the second drive shaft, a first gear fixedly sleeved outside the connecting sleeve, and a gear ring fixedly sleeved outside the ring seat. The connecting sleeve is rotatably connected to the inside of the slide; The first gear meshes with the gear ring; The second drive shaft is connected to the drive mechanism.

5. A steel structure cutting device for road guardrail production according to claim 4, characterized in that, The drive mechanism includes a first motor mounted on the outer wall of one of the fixed bases, a first one-way gear mounted on the outside of the first drive shaft, and a second one-way gear mounted on the outside of the second drive shaft; A second gear is fixedly sleeved on the outside of the output shaft of the first motor, and the second gear meshes with the first one-way gear and the second one-way gear respectively.

6. A method for cutting steel structures for road guardrail production, comprising using a steel structure cutting device for road guardrail production as described in claim 5, characterized in that, Includes the following steps: S1. Insert the steel pipe to be cut into the pipe groove in the fixed seat and the slide, and clamp the steel pipe by the clamping assembly; S2. The steel pipe is moved by the conveying mechanism, so that the steel pipe moves along the outside of the inner pipe, the slide plate moves accordingly, and the slag removal rod moves away from the collection tank. S3. By activating the laser head and driving the steel pipe to rotate through the circumferential cutting mechanism, the steel pipe is subjected to circumferential cutting. S4. The slag produced by laser cutting of steel pipe enters the inner tube through the collection tank. By driving the inner tube to rotate, the inner tube rotates along the inside of the fan-shaped cavity. When the inner tube is vertically downward, the steel pipe outside the inner tube falls along the inner wall of the feeding cavity. Through the rebound force of the spring, the slag removal rod is driven to clean the slag that has entered the inner tube. S5. The inner tube is then driven to rotate and reset, and the steel pipe continues to move along the outside of the inner tube via the conveying mechanism.

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