A power grid power tower steel pipe production laser cutting equipment
By using a three-point clamping structure and a ring-shaped nozzle design, the problem of traditional laser cutting equipment being unable to stably constrain the rotation center of steel pipes has been solved, achieving high-precision and stable cutting of steel pipes for power grid towers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUAIAN OF JIANGSU ELECTRIC POWER CO POWER SUPPLY
- Filing Date
- 2026-03-19
- Publication Date
- 2026-05-29
AI Technical Summary
When traditional laser cutting equipment cuts steel pipes for power grid towers, the external clamping alone cannot completely constrain the steel pipe, causing the actual center of rotation of the steel pipe to shift, affecting the cutting accuracy and quality.
The three-point clamping structure, including inner and outer clamping plates and an inner support head, is adopted. The steel pipe is precisely centered through gear and rack linkage, and the inner and outer rigid constraints, combined with the ring nozzle design, are used for airflow cooling and slag removal to ensure the stability and accuracy of the cutting process.
It achieves full-dimensional rigid constraint of steel pipe, ensuring cutting accuracy and quality, reducing thermal deformation, improving cutting stability and consistency, and avoiding offset and thermal effects during the cutting process.
Smart Images
Figure CN122099604A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of steel pipe production technology for power towers, and particularly to a laser cutting equipment for producing steel pipes for power grid towers. Background Technology
[0002] Power transmission towers are spatial truss structures used to support high-voltage and ultra-high-voltage overhead transmission lines. Conductors and lightning rods are suspended from the tower head, the tower body bears vertical and lateral loads, and the tower legs connect to the foundation to transfer force to the ground, ensuring the safe crossing of complex terrains such as mountains and cities. Power transmission tower steel pipes refer to the steel pipe materials used to manufacture the main load-bearing components of transmission line towers, such as the main tower body, crossbeams, and diagonal braces. They are usually circular. During the production of tower steel pipes, they need to be cut, which requires the use of metal cutting equipment. Laser cutting equipment is generally used for cutting circular steel pipes for power towers. However, traditional laser cutting equipment typically clamps the pipes at both ends on the outside. Since the steel pipes are hollow, the clamping force only acts on the outer side of the pipe wall, and there is no support on the inside to generate a reaction force. The pipe wall is prone to slight radial concavity or swaying under external force, especially thin-walled pipes. Even when clamped at the cutting point, the pipe body will undergo elastic deformation. During rotation, this deformation will be amplified into radial runout. The cut section of the steel pipe will sag due to its own weight, and centrifugal force will also be generated during rotation. The outer clamp alone cannot completely restrain these two forces, causing the actual center of rotation of the steel pipe to continuously shift, and the coaxiality to be directly out of control, affecting the cutting accuracy and quality. Therefore, a laser cutting equipment for the production of power grid steel pipes is needed to solve the above problems. Summary of the Invention
[0003] The purpose of this invention is to provide a laser cutting equipment for the production of steel pipes for power grid towers, in order to solve the defects of existing laser cutting equipment for the production of steel pipes for power grid towers. When laser cutting steel pipes, the external clamping alone cannot completely constrain the steel pipe, causing the actual center of rotation of the steel pipe to continuously shift, and the coaxiality to be directly out of control, which affects the cutting accuracy and quality.
[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a laser cutting equipment for producing steel pipes for power grid towers, comprising a worktable and a placement seat; the placement seat is installed on the top of the worktable, a three-grip chuck is installed at one end of the placement seat, a moving guide rail is provided on one side of the worktable, a mounting frame is provided on the top of the moving guide rail, a cylinder is installed on the top of the mounting frame, a laser cutting component is provided at the bottom of the cylinder, and a clamping structure is provided inside the worktable; The clamping structure includes a gear, which is installed on one side inside the workbench. A first toothed plate is installed on one side of the gear, and a connecting frame is installed at one end of the first toothed plate. One side of the connecting frame is connected to the mounting frame, and a support rod is installed at the top of the connecting frame. A support head is installed at one end of the support rod, and a second toothed plate is installed on the other side of the gear.
[0005] Preferably, a screw is installed at the middle position inside the workbench, and a screw sleeve is installed on the outside of the screw. The top end of the screw sleeve is connected to the bottom end of the placement seat, and one side of the screw sleeve is fixed to one side of the second toothed plate.
[0006] Preferably, a mounting base is installed on one side of the mounting frame, a bidirectional lead screw is installed inside the mounting base, threaded sleeves are installed on the outer sides of both ends of the bidirectional lead screw, a mounting plate is installed on the top of the threaded sleeves, a clamping plate is installed on one side of the mounting plate, and an insert block is installed on one side of the mounting plate.
[0007] Preferably, a support base is installed at the middle position of the top of the mounting base, the support base has a moving groove inside, a support plate is installed at the top of the support base, and a pressing block is installed at the bottom of the support plate.
[0008] Preferably, the clamping plates are provided in two sets, and the two sets of clamping plates are symmetrically distributed at the top of the mounting base.
[0009] Preferably, one side of the first toothed plate and the second toothed plate is provided with a plurality of teeth, and the first toothed plate and the second toothed plate mesh with the gear.
[0010] Preferably, one end of the insert block is inserted into the interior of the movable groove, and the insert block and the extrusion block form an extrusion connection.
[0011] Preferably, the threaded sleeve is provided in two sets, and the two sets of threaded sleeves form a threaded connection with the bidirectional lead screw.
[0012] Preferably, an auxiliary structure is provided at the middle position of the support head. The auxiliary structure includes a clearance groove, which is opened on the outside of the middle position of the support head. A nozzle is installed inside the clearance groove, and a connector is installed at one end of the support rod.
[0013] Preferably, the nozzles are provided in multiple sets, and the multiple sets of nozzles are arranged in a ring inside the clearance groove.
[0014] The present invention provides a laser cutting equipment for producing steel pipes for power grid towers, which has the following advantages: By incorporating a clamping structure, during steel pipe cutting, the cooperation of the second and first toothed plates enables equidistant, reverse linkage between them. This ensures that the movement distance and speed of the support head and the first toothed plate are inversely correlated with the steel pipe. The support head precisely moves in the opposite direction to the cutting position by the same amount the steel pipe moves towards the cutting end. This eliminates the need for manual calibration of the support head, avoiding the secondary adjustment errors that occur when first adjusting the steel pipe position and then separately adjusting the support head. It guarantees that the support head always precisely conforms to the inner side of the steel pipe at the cutting position. Furthermore, this adjustment method utilizes a mechanical linkage of gear and rack meshing, eliminating signal delays and the need for separate electronic control adjustments. Once adjusted to the correct position, the support head is completely locked, ensuring greater stability after adjustment. Furthermore, by setting up the support head, after the support head is inserted into the inside of the steel pipe, the support head can provide internal radial rigid centering for the steel pipe, directly constraining the radial swing and deflection of the steel pipe in the cutting section, ensuring the stability of the steel pipe's rotation axis, and keeping the distance between the laser focus and the pipe wall constant. This avoids cutting accuracy deviation caused by focus offset from the root, offsets the thermal shrinkage stress generated by the high temperature of laser cutting, prevents the cutting end from shrinking inward, warping, or locally concave, effectively ensures the roundness and flatness of the steel pipe after cutting, fixes the posture of the pipe body at the cutting position, and ensures that the steel pipe rotates without center offset, ensuring that the width and depth of the cut are uniform, ensuring the consistency of cutting size and contour accuracy, and improving the stability of steel pipe cutting. Furthermore, by having the clamping plates on both sides adhere to the outer side of the steel pipe and the bottom support plate support the lower wall of the steel pipe, a three-point centering clamp is formed, which constrains the steel pipe in all directions from the radial sides and the axial bottom, allowing the rotation axis of the steel pipe to be fixed quickly and accurately, completely avoiding the left and right swinging and up and down movement of the steel pipe during the cutting process, ensuring the coaxiality of the steel pipe rotation, providing a stable benchmark for the constant laser focus, realizing three-dimensional rigid constraint, and improving accurate centering; Furthermore, the action of the clamping plates on both sides to fit together simultaneously triggers the supporting action of the bottom support plate. A single operation can complete the three-way clamping and support without the need for manual adjustment of the bottom support structure. This achieves integrated clamping, centering, and lifting, significantly reducing manual calibration errors, forming full-dimensional rigid centering, and preventing tube displacement. Furthermore, by using the three-way clamping constraint of radial on both sides of the steel pipe and vertical at the bottom, plus the internal support head to achieve coaxial radial support from the inner diameter of the steel pipe, the two work together to form a full-dimensional rigid constraint on the steel pipe in the inner and outer, upper and lower, and left and right dimensions, so that the rotation axis of the steel pipe is completely aligned with the cutting baseline, completely eliminating the offset problems such as radial sway, vertical movement, and deflection, thus completing the multi-clamping work. By incorporating an auxiliary structure and setting an avoidance groove in the middle of the support head, the laser cutting position is effectively avoided. This ensures that the support head only contacts the inner diameter of the steel pipe through its two side support surfaces, thus isolating the support head from the laser cutting zone from the outset. This approach retains the rigid constraint of the inner diameter support while completely preventing laser cutting into the support head. Furthermore, since all the nozzles are distributed in a clockwise ring, the clearance groove becomes the only airflow cavity. The gas can only circulate once inside the clearance groove and then be discharged outward along the cutting seam. It is strictly constrained by the clearance groove and the contact surface throughout the process, with no other flow space. This allows the jet direction of the nozzle to be arranged along the circumferential tangent of the groove. At the same time, the design of the nozzle with a slight radial angle tilt, uniform jet in the same direction, and narrow groove constraint completely avoids the airflow blowing directly to the cutting point. The airflow is strictly constrained by the groove wall to form a laminar circulation. It does not directly hit the steel pipe cutting point, but can achieve slag removal and uniform cooling through circumferential airflow. When cutting steel pipes, the airflow accurately wraps the cutting seam, the slag removal is more thorough and there is no slag residue. There is no slag or scar on the inside and outside of the cutting seam. The circumferential laminar flow uniformly cools the cutting area, minimizes the heat-affected zone, and reduces the thermal deformation and warping of the steel pipe. Attached Figure Description
[0015] Figure 1 This is a frontal three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below; Figure 3 This is a frontal cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 4 This is a top-view cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 5 This is a partial three-dimensional structural diagram of the clamping structure of the present invention; Figure 6 This is a three-dimensional structural diagram of the clamping structure of the present invention, viewed from below. Figure 7 This is a top-view three-dimensional structural diagram of the mounting base of the present invention; Figure 8 This is a three-dimensional structural schematic diagram of the side cross-section of the mounting base of the present invention; Figure 9 This is a three-dimensional structural schematic diagram of the mounting base of the present invention, viewed from below. Figure 10 This is a three-dimensional structural schematic diagram of the support base of the present invention, viewed from the front and in cross-section. Figure 11 This is a three-dimensional structural schematic diagram of the support base of the present invention, viewed from below. Figure 12 This is a frontal three-dimensional structural diagram of the auxiliary structure of the present invention; Figure 13 This is a top-view three-dimensional structural diagram of the auxiliary structure of the present invention.
[0016] The following are the annotations in the diagram: 1. Workbench; 2. Placement seat; 3. Three-jaw chuck; 4. Mounting frame; 5. Clamping structure; 501. Support rod; 502. Connecting frame; 503. First toothed plate; 504. Second toothed plate; 505. Gear; 506. Screw sleeve; 507. Screw; 508. Mounting seat; 509. Two-way lead screw; 5010. Screw sleeve; 5011. Mounting plate; 5012. Clamping plate; 5013. Support seat; 5014. Insert block; 5015. Moving groove; 5016. Support plate; 5017. Extrusion block; 5018. Support head; 6. Laser cutting assembly; 7. Moving guide rail; 8. Cylinder; 9. Auxiliary structure; 901. Clearance groove; 902. Nozzle; 903. Connecting head. Detailed Implementation
[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0018] Please see Figures 1-13 The present invention provides a laser cutting equipment for producing steel pipes for power grid towers, including a workbench 1 and a placement seat 2; the placement seat 2 is installed on the top of the workbench 1, a three-grip chuck 3 is installed on one end of the placement seat 2, a moving guide rail 7 is provided on one side of the workbench 1, a mounting frame 4 is provided on the top of the moving guide rail 7, a cylinder 8 is installed on the top of the mounting frame 4, a laser cutting component 6 is provided on the bottom of the cylinder 8, and a clamping structure 5 is provided inside the workbench 1.
[0019] Reference Figures 1-11As shown, the clamping structure 5 includes a gear 505, which is installed on one side inside the workbench 1. A first toothed plate 503 is installed on one side of the gear 505. A connecting frame 502 is installed at one end of the first toothed plate 503. One side of the connecting frame 502 is connected to the mounting frame 4. A support rod 501 is installed at the top of the connecting frame 502. A support head 5018 is installed at one end of the support rod 501. A second toothed plate 504 is installed on the other side of the gear 505. A screw 507 is installed at the middle position inside the workbench 1. A threaded sleeve 506 is installed on the outside of the screw 507. The top of the threaded sleeve 506 is connected to the bottom of the placement seat 2. One side of the threaded sleeve 506 is fixed to one side of the second toothed plate 504. A mounting seat 508 is installed on one side of the mounting frame 4. A double-acting lead screw 509 is installed inside the mounting seat 508. Threaded sleeves 5010 are installed on the outside of both ends of the double-acting lead screw 509. A mounting plate 5010 is installed at the top of the threaded sleeve 5010. 11. A clamping plate 5012 is installed on one side of the mounting plate 5011, and an insert block 5014 is installed on one side of the mounting plate 5011. A support base 5013 is installed at the middle position of the top of the mounting base 508. A moving groove 5015 is opened inside the support base 5013. A support plate 5016 is installed at the top of the support base 5013, and a pressing block 5017 is installed at the bottom of the support plate 5016. Two sets of clamping plates 5012 are provided. 2. The first toothed plate 503 and the second toothed plate 504 are symmetrically distributed on one side of the top of the mounting base 508. Several teeth are provided on one side of the first toothed plate 503 and the second toothed plate 504. The first toothed plate 503 and the second toothed plate 504 mesh with the gear 505. One end of the insert block 5014 is inserted into the interior of the moving groove 5015. The insert block 5014 and the pressing block 5017 form a pressing connection. Two sets of threaded sleeves 5010 are provided. The two sets of threaded sleeves 5010 form a threaded connection with the bidirectional lead screw 509.
[0020] When cutting the steel pipe, the support rod 501 is installed first. During installation, the middle position of the outer clearance groove 901 of one end of the support head 5018 of the support rod 501 is aligned with the cutting head of the laser cutting component 6. After alignment, the steel pipe is installed on one side of the three-jaw chuck 3. After installation, one side of the steel pipe is exactly aligned with one side of the support head 5018. This distance is achieved by the preset length of the connecting bracket 502. After alignment, the external power supply starts the servo motor to drive the screw 507 to rotate. When the servo motor rotates, the pushing length is determined by precisely controlling the number of rotations. When controlling the precise number of rotations, the compensation distance of the center distance of the clearance groove 901 on the side of the support head 5018 that is initially flush with the steel pipe is added to achieve the movement of the steel pipe. For precise control of the cutting length, the screw 507 rotates, causing the screw sleeve 506 to rotate. Due to the limit structure installed at the bottom of the screw sleeve 506, the screw sleeve 506 is limited and can only move to one side along the outside of the screw 507. As the screw 507 moves to one side, it also causes the three-jaw chuck 3 at the top of the placement seat 2 to move to one side. When the steel pipe reaches the required cutting length, rotation stops, thus determining the cutting length. As the screw sleeve 506 moves axially to one side, it simultaneously drives the second toothed plate 504 to move in the same direction. During its movement, the second toothed plate 504 engages with the gear 505 through one side of its teeth, thereby driving the gear 505 to rotate around its own axis. During rotation, the gear 505, through meshing, drives the first toothed plate 503 along the first... The two toothed plates 504 move in opposite axial directions, achieving reverse equidistant linkage between the first toothed plate 503 and the second toothed plate 504. This causes the connecting frame 502 on one side of the first toothed plate 503 to also move to one side. As the connecting frame 502 moves, it drives the support head 5018 at one end of the support rod 501 to move to the same position, allowing the support head 5018 to be inserted into the steel pipe. This achieves a 1:1 reverse linkage between the moving distance and speed of the support head 5018 and the first toothed plate 503 and the steel pipe. The support head 5018 moves precisely in the opposite direction to the cutting position by the same amount the steel pipe moves towards the cutting end, eliminating the need for manual calibration of the support head 5018's position and avoiding the secondary adjustment errors of first adjusting the steel pipe position and then separately adjusting the support head 5018. The support head 5018 ensures precise contact with the inner side of the steel pipe cutting position, forming a rigid centering support that meets the precision requirements of laser cutting. The cutting position is precisely and synchronously aligned without adjustment errors. This adjustment method utilizes a gear and rack mechanical linkage with direct meshing, eliminating signal delays and the need for separate electronic adjustments. Once adjusted, the support head 5018 is completely locked, ensuring greater stability. After insertion into the steel pipe, the support head 5018 provides internal radial rigid centering, directly constraining the radial sway and deflection of the cut section, ensuring the stability of the steel pipe's rotation axis, and maintaining a constant distance between the laser focus and the pipe wall. This fundamentally prevents cutting accuracy deviations caused by focus offset and counteracts the thermal shrinkage stress generated by the high temperature of laser cutting.It prevents the cut end from shrinking inward, warping, or locally denting, effectively ensuring the roundness and flatness of the cut end of the steel pipe. It fixes the pipe's posture at the cutting position, preventing the steel pipe from rotating with its center off-center, ensuring uniform kerf width and depth, guaranteeing consistent cutting dimensions and contour accuracy, and improving the stability of steel pipe cutting. When the support head 5018 is inserted into the steel pipe for support, the start motor drives the double-acting screw 509 to rotate. During the rotation, the double-acting screw 509, through its cooperation with the threaded sleeve 5010, drives the two sets of mounting plates 5011 to move to one side, causing the two sets of clamping plates 5012 to fit against the outside of the steel pipe. When the two sets of clamping plates 5012 are in contact, the insert block 5014 on one side of one set of mounting plates 5011 will enter the moving groove 5015, thereby squeezing the pressing block 5017 upward, causing the support plate 5016 to fit against the bottom end of the steel pipe, thus clamping and supporting the sides and bottom end of the steel pipe. The clamping plates 5012 on both sides fit against the outside of the steel pipe and the bottom support plate. The 5016 support plate forms a three-point centering clamp on the lower wall of the steel pipe, constraining the steel pipe in all directions from the radial sides and the axial bottom. This allows the rotation axis of the steel pipe to be fixed quickly and accurately, completely avoiding the left-right swaying and up-down movement of the steel pipe during the cutting process. It ensures the coaxiality of the steel pipe rotation, provides a stable benchmark for the constant laser focus, achieves three-dimensional rigid constraint, and improves precise centering. The action of the clamping plates 5012 on both sides simultaneously triggers the supporting action of the bottom support plate 5016. Three-dimensional clamping and support can be completed in one operation without the need for manual adjustment of the bottom support structure. This achieves integrated clamping, centering, and lifting, greatly reduces manual calibration errors, forms all-dimensional rigid centering, and eliminates pipe body deviation. By employing a three-dimensional clamping constraint—radial from both sides and vertical from the bottom—along with an internal support head 5018 providing coaxial radial support from the inner diameter of the steel pipe, the combined effect creates a full-dimensional rigid constraint on the steel pipe, ensuring its rotation axis is perfectly aligned with the cutting baseline. This completely eliminates issues such as radial sway, vertical movement, and deflection. The distance between the laser focus and the pipe wall remains constant throughout the entire process, guaranteeing coaxial cutting from the root cause. This double-complementary countermeasure against external disturbances prevents any instability during pipe rotation. The outer bottom support directly lifts the steel pipe, completely offsetting the cutting force caused by its own weight. The segment sinks and deflects, and the internal support head 5018 precisely counteracts the centrifugal force when the steel pipe rotates. Combined with the circumferential constraints of the clamps on both sides, the external disturbances that may cause the pipe to become unstable are doubly counteracted. During the cutting process, the steel pipe always maintains a stable rotation without any slight shaking, which improves the stability of the steel pipe during cutting and thus completes the multiple clamping work. After the steel pipe is clamped, the laser cutting component 6 is activated to cut the steel pipe. When the steel pipe is being cut, the servo motor on one side of the three-grip chuck 3 is activated to drive the steel pipe to rotate, thereby realizing the laser cutting operation of the rotating steel pipe. After the steel pipe is cut, the cut section remains outside the support head 5018. Because this section is aligned with one side of the original steel pipe to be cut, it is inconvenient for material removal. At this time, the servo motor is started and rotated the same number of revolutions as during the cutting feed, driving the support rod 501 to return to its initial position. This moves the cut section away from the original steel pipe, clearing the material removal space and making it easier for the operator to remove the cut section. When the original steel pipe needs to be laser-cut again, since the support head 5018 has returned to its initial position with the support rod 501 after material removal, in order to move the original steel pipe back to the initial cutting position, the servo motor needs to drive the screw 507 to rotate the first cutting position. The number of cuts is doubled during the feed cycle plus the compensation distance, and the subsequent cuts are made in the same manner to cut the steel pipe to a consistent length. Since the mounting frame 4 is connected to one side of the connecting frame 502, the mounting frame 4 will move to the same position as the support rod 501. The mounting frame 4 moves synchronously with the support rod 501 at equal distances, always ensuring that the middle position of the clearance groove 901 on the support head 5018 is precisely aligned with the cutting position of the laser cutting component 6, so that the laser cutting component 6 can stably achieve a fixed length cut of the steel pipe of the same length, and the length of the steel pipe cut each time is consistent, thus completing the fixed length cut. The distance between the guide groove on the moving guide rail 7 and the first toothed plate 503 is the same. Reference Figures 12-13 As shown, an auxiliary structure 9 is provided at the middle position of the support head 5018. The auxiliary structure 9 includes a clearance groove 901, which is opened on the outside of the middle position of the support head 5018. A nozzle 902 is installed inside the clearance groove 901. A connector 903 is installed at one end of the support rod 501. Multiple sets of nozzles 902 are provided, and the multiple sets of nozzles 902 are arranged in a ring inside the clearance groove 901.
[0021] When the laser cutting assembly 6 is cutting, the connector 903 is connected to an external air inlet pipe, allowing air to be blown into the interior of the connector 903. The air then passes through the support rod 501 and exits from the nozzle 902. An avoidance groove 901 is provided in the middle of the support head 5018 to effectively avoid the laser cutting area. This ensures that the support head 5018 only contacts the inner diameter of the steel pipe through its two side support surfaces, thus detaching the support head 5018 from the laser cutting zone from the source. This retains the rigid constraint of the inner diameter support while completely preventing laser cutting of the support head 5018. The support head 5018 and the inner diameter of the steel pipe form a sealing surface. Since all nozzles 902 are arranged in a clockwise ring, the avoidance groove 901 becomes the only airflow cavity. The gas can only circulate once inside the avoidance groove 901 before being discharged outwards along the cutting seam, completely controlled by the avoidance groove 901 and the inner diameter of the steel pipe. With strict constraints on the interface and no other flow space, the jet direction of the nozzle 902 is arranged along the circumferential tangent of the groove. Simultaneously, the design of a slight radial angle tilt of the nozzle 902, unified jet flow in the same direction, and narrow groove constraint completely avoids direct airflow onto the cutting area. Furthermore, all angle designs are based on the closed annular chamber of the avoidance groove 901, allowing the airflow to be strictly constrained by the groove wall to form a laminar circulation. This avoids direct impact on the steel pipe cutting area while achieving slag removal and uniform cooling through circumferential airflow. This ensures that during steel pipe cutting, the airflow precisely coats the cut, resulting in more thorough slag removal without residue. There is no slag adhesion or scarring on the inside or outside of the cut. Uniform circumferential laminar flow cools the cutting area, minimizing the heat-affected zone and reducing thermal deformation and warping of the steel pipe. This enables the successful laser cutting of steel pipes for power grid tower production.
[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A laser cutting equipment for producing steel pipes for power grid towers, comprising a worktable (1) and a placement seat (2); Its features are: The top of the workbench (1) is equipped with a placement seat (2), one end of the placement seat (2) is equipped with a three-grip chuck (3), a moving guide rail (7) is provided on one side of the workbench (1), a mounting bracket (4) is provided at the top of the moving guide rail (7), a cylinder (8) is installed at the top of the mounting bracket (4), a laser cutting component (6) is provided at the bottom of the cylinder (8), and a clamping structure (5) is provided inside the workbench (1). The clamping structure (5) includes a gear (505), which is installed on one side inside the workbench (1). A first toothed plate (503) is installed on one side of the gear (505). A connecting frame (502) is installed at one end of the first toothed plate (503). One side of the connecting frame (502) is connected to the mounting frame (4). A support rod (501) is installed at the top of the connecting frame (502). A support head (5018) is installed at one end of the support rod (501). A second toothed plate (504) is installed on the other side of the gear (505).
2. The laser cutting equipment for producing steel pipes for power grid towers according to claim 1, characterized in that: A screw (507) is installed in the middle of the workbench (1). A screw sleeve (506) is installed on the outside of the screw (507). The top of the screw sleeve (506) is connected to the bottom of the placement seat (2). One side of the screw sleeve (506) is fixed to one side of the second toothed plate (504).
3. The laser cutting equipment for producing steel pipes for power grid towers according to claim 1, characterized in that: A mounting base (508) is installed on one side of the mounting bracket (4). A bidirectional lead screw (509) is installed inside the mounting base (508). A threaded sleeve (5010) is installed on the outer side of both ends of the bidirectional lead screw (509). A mounting plate (5011) is installed on the top of the threaded sleeve (5010). A clamping plate (5012) is installed on one side of the mounting plate (5011). An insert block (5014) is installed on one side of the mounting plate (5011).
4. The laser cutting equipment for producing steel pipes for power grid towers according to claim 3, characterized in that: A support base (5013) is installed at the middle position of the top of the mounting base (508). A moving groove (5015) is opened inside the support base (5013). A support plate (5016) is installed at the top of the support base (5013). An extrusion block (5017) is installed at the bottom of the support plate (5016).
5. The laser cutting equipment for producing steel pipes for power grid towers according to claim 3, characterized in that: The clamping plates (5012) are provided in two sets, and the two sets of clamping plates (5012) are symmetrically distributed at the top of the mounting base (508).
6. The laser cutting equipment for producing steel pipes for power grid towers according to claim 1, characterized in that: The first toothed plate (503) and the second toothed plate (504) are provided with a plurality of teeth on one side, and the first toothed plate (503) and the second toothed plate (504) mesh with the gear (505).
7. The laser cutting equipment for producing steel pipes for power grid towers according to claim 4, characterized in that: One end of the insert (5014) is inserted into the interior of the moving groove (5015), and the insert (5014) and the extrusion block (5017) form an extrusion connection.
8. The laser cutting equipment for producing steel pipes for power grid towers according to claim 3, characterized in that: The threaded sleeve (5010) is provided in two sets, and the two sets of threaded sleeves (5010) form a threaded connection with the bidirectional lead screw (509).
9. The laser cutting equipment for producing steel pipes for power grid towers according to claim 1, characterized in that: An auxiliary structure (9) is provided at the middle position of the support head (5018). The auxiliary structure (9) includes a clearance groove (901). The clearance groove (901) is opened on the outside of the middle position of the support head (5018). A nozzle (902) is installed inside the clearance groove (901). A connector (903) is installed at one end of the support rod (501).
10. The laser cutting equipment for producing steel pipes for power grid towers according to claim 9, characterized in that: The nozzle (902) is provided in multiple sets, and the multiple sets of nozzles (902) are arranged in a ring inside the clearance groove (901).