Automatic seam welder for steel reinforcement framework of electric pole

By combining the helical drive pair consisting of the threaded sleeve and the screw with the wavy guide groove, the axial and outer periphery of the pole's steel reinforcement skeleton can be fixed simultaneously, solving the problems of main reinforcement offset and misalignment, and improving welding accuracy and production efficiency.

CN122033405APending Publication Date: 2026-05-15HEBEI XINJIAN CEMENT PROD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202610486221.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-14
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The existing automatic welding machine for pole reinforcement cages cannot effectively fix the axial and outer periphery of the reinforcement bars at the same time, which causes the main reinforcement bars to shift and misalign during the welding process, affecting the geometric accuracy and bending and shear mechanical properties, increasing the welding scrap rate, and restricting production efficiency and quality stability.

Method used

The helical transmission pair consisting of a threaded sleeve and a screw converts the rotational torque into axial thrust. Combined with the cooperation of the wave-shaped guide groove and the sliding rod, the main reinforcement is fixed axially and circumferentially at the same time. The wedge-shaped block adaptive clamping, combined with the cooperation of the roller and the rotating ring, restricts displacement and ensures the stability of the steel reinforcement cage.

Benefits of technology

This achieves stable fixing of the main reinforcement bars, avoids displacement and movement, ensures the geometric accuracy and welding quality of the steel reinforcement cage, reduces the welding scrap rate, and improves production efficiency and quality stability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122033405A_ABST
    Figure CN122033405A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of steel bar seam welders, and discloses an electric pole steel bar framework automatic seam welder which comprises a bottom frame, a top frame is fixedly connected to the top of the bottom frame, an inclined side sliding rail is arranged at the top of the bottom frame, a fixing frame is slidably connected to the top of the inclined side sliding rail, and a rolling assembly is arranged in the fixing frame. A fixing frame is fixedly connected to the interior of the rolling assembly, a positioning ring is fixedly connected to the exterior of the fixing frame, a positioning frame is fixedly connected to the interior of the positioning ring, a power assembly is arranged in the positioning frame, a sliding disc is rotationally connected to one side of the power assembly, and a rotating rod is rotationally connected to one side of the sliding disc. The wedge-shaped block can adapt to the shape of the main reinforcement, the contact area is increased, the clamping force is uniform, the main reinforcement is prevented from being damaged, peripheral clamping is achieved, the rotating ring is matched with the rolling groove through the rolling wheel to limit self displacement, peripheral and axial fixing of the main reinforcement is achieved at the same time, deviation and movement of the main reinforcement are avoided, stability of a reinforcement cage is ensured, and a guarantee is provided for roll welding precision and quality.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of steel bar welding machine technology, and in particular to an automatic steel bar cage welding machine for utility poles. Background Technology

[0002] The automatic rebar cage welding machine is an automated welding device driven by a PLC control system, specifically designed for the mass production of cylindrical rebar cages (steel cages). It completely replaces the traditional manual tying and welding process and is one of the core pieces of equipment in modern industrialized construction and infrastructure construction. The machine mainly consists of an automatic main bar feeding rack, a stirrup straightening and laying mechanism, a fixed and moving rotary table, a servo-driven walking system, a multi-axis welding robot, and a hydraulic support device. Its modular design facilitates transportation and installation. The main bars automatically pass through the dividing holes of the rotary table and are clamped and positioned. The stirrups are straightened and then led out. The rotary table drives the main bars to rotate at a uniform speed, causing the stirrups to spirally wind around the outside of the main bars with a precise pitch. The welding robot automatically completes carbon dioxide gas shielded welding or resistance spot welding at the intersection points, ultimately forming a complete rebar cage in one go. It is widely used in the processing of rebar cages for concrete piles and piers in highways, high-speed railways, bridges, high-rise buildings, subway tunnels, and water conservancy projects. However, some existing automatic welding machines for pole reinforcement cages typically only clamp and fix the reinforcement in the axial direction or on the outer periphery, failing to fix both simultaneously. This results in the reinforcement not being effectively fixed. When only axial clamping is used, the equipment generally clamps the end of the main reinforcement with a single-jaw chuck on a rotating disc, which can only restrict the main reinforcement's movement along the axial direction, completely failing to restrain its radial swing and circumferential torsion. When the stirrups are spirally wound around the outside of the main reinforcement with a set tension and welding pressure is applied, the main reinforcement is prone to radial displacement and circumferential misalignment, causing problems such as uneven distribution of the main reinforcement, excessive roundness of the cage, and eccentricity of the main reinforcement. Furthermore, when only outer periphery clamping is used for fixing, it can only... While the radial displacement of the main reinforcement bars is restricted by the ring clamps, it cannot prevent axial movement. During the roll welding process, with the continuous movement of the rotating disk and the repeated impact and vibration of the welding robot, the main reinforcement bars will irregularly slip along the axial direction, resulting in uneven spacing of the stirrups, inconsistent extension lengths of the main reinforcement bars at both ends of the frame, and even the main reinforcement bars falling out of the clamps. This not only leads to a significant decrease in the geometric dimensional accuracy of the pole reinforcement frame, directly affecting the thickness of the protective layer of the subsequent concrete pouring and the overall bending and shear mechanical properties of the pole, but also significantly increases the scrap rate during the welding process, requiring frequent manual stops for correction and re-welding, which seriously restricts the efficiency and quality stability of the industrial production of poles.

[0003] Therefore, an automatic roll welding machine for the steel reinforcement cage of utility poles is proposed to address the above problems. Summary of the Invention

[0004] To overcome the above shortcomings, the present invention provides an automatic roll welding machine for the steel reinforcement cage of utility poles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic welding machine for rebar cages of utility poles includes a base frame, a top frame fixedly connected to the top of the base frame, an inclined side slide rail on the top of the base frame, a fixed frame slidably connected to the top of the inclined side slide rail, a rolling assembly inside the fixed frame, a fixed frame fixedly connected inside the rolling assembly, a positioning ring fixedly connected to the outside of the fixed frame, a positioning frame fixedly connected inside the positioning ring, a power assembly inside the positioning frame, a sliding disk rotatably connected to one side of the power assembly, a rotating rod rotatably connected to one side of the sliding disk, a guide groove inside the rotating rod, a sliding rod slidably connected inside the guide groove, a connecting frame fixedly connected to the outside of the sliding rod, a wedge block rotatably connected to one side of the rotating rod, a guide rod fixedly connected to one side of the wedge block, and a laser assembly at the bottom of the top frame. As a further description of the above technical solution: The rolling assembly includes a mounting frame, the outside of which is fixedly connected to the inside of a fixed frame. A roller is fixedly connected inside the mounting frame, and a rotating ring is rotatably connected inside the fixed frame. A rolling groove is formed inside the rotating ring, and a motor is mounted on one side of the fixed frame. As a further description of the above technical solution: The power assembly includes a threaded sleeve, the outside of which is fixedly connected to the inside of the positioning frame, and a screw is threadedly connected to the inside of the threaded sleeve. A rotating block is fixedly connected to one side of the screw, and a rotating disk is fixedly connected to one side of the screw. As a further description of the above technical solution: The laser assembly includes a guide rail, the top of which is fixedly connected to the inside of the top frame, a slider is slidably connected to the bottom of the guide rail, an arc-shaped rail is fixedly connected to the bottom of the slider, and a laser welding head is provided at the bottom of the arc-shaped rail. As a further description of the above technical solution: The roller is externally movably connected to the inside of the rolling groove, and a drive module is provided inside the fixed frame. The motor drives the rotating ring to rotate through the drive module and is connected to the inside of the fixed frame. As a further description of the above technical solution: The screw is externally rotatably connected to the inside of the positioning frame, and the rotating disk is externally rotatably connected to the inside of the sliding disk; As a further description of the above technical solution: One side of the connecting frame is fixedly connected to the inside of the positioning frame, and the outside of the sliding rod is slidably connected to the inside of the guide groove; As a further description of the above technical solution: The guide rod is externally slidably connected to the inside of the positioning frame, and the guide groove is wavy in shape. As a further description of the above technical solution: The external sliding disk is slidably connected to the internal positioning frame, and the external rotating screw is rotatably connected to the internal sliding disk.

[0006] The present invention has the following beneficial effects: 1. In this invention, the threaded sleeve and screw convert the rotational torque of the rotating block into axial thrust, which is transmitted to the sliding disk via the rotating disk. The sliding disk drives the rotating rod to move. Its internal wave-shaped guide groove cooperates with the sliding rod to convert the axial motion into the swing of the rotating rod, pushing the wedge block to extend and retract radially along the guide rod. The wedge block can adapt to the shape of the main reinforcement, increase the contact area, uniformly clamp the force, avoid damage to the main reinforcement, and achieve peripheral clamping. The rotating ring restricts its own displacement through the cooperation of the roller and the rolling groove, and cooperates with the fixing frame to ensure coaxiality, so as to simultaneously fix the outer periphery and axial direction of the main reinforcement, avoid the main reinforcement from shifting or moving, ensure the stability of the steel reinforcement skeleton, and provide a guarantee for the accuracy and quality of the roll welding. Attached Figure Description

[0007] Figure 1 This is a three-dimensional schematic diagram of an automatic roll welding machine for the steel reinforcement cage of utility poles proposed in this invention; Figure 2 This is a schematic diagram of the top frame structure of an automatic roll welding machine for the steel reinforcement cage of utility poles proposed in this invention; Figure 3 This is a schematic diagram of the positioning ring structure of an automatic roll welding machine for the steel reinforcement cage of utility poles proposed in this invention; Figure 4 This is a schematic diagram of the fixing frame structure of an automatic roll welding machine for rebar cages of utility poles proposed in this invention; Figure 5 This is a schematic diagram of the rotating ring structure of an automatic roll welding machine for rebar cages of utility poles proposed in this invention; Figure 6 This is a schematic diagram of the screw structure of an automatic roll welding machine for rebar cages of utility poles proposed in this invention; Figure 7 This is a schematic diagram of the sliding disc structure of an automatic roll welding machine for rebar cages of utility poles proposed in this invention; Figure 8 This is a schematic diagram of the positioning frame structure of an automatic roll welding machine for rebar cages of utility poles proposed in this invention; Figure 9 This is a schematic diagram of the connection frame structure of an automatic roll welding machine for rebar cages of utility poles proposed in this invention; Figure 10 This is a schematic diagram of the slider structure of an automatic roll welding machine for rebar cages of utility poles proposed in this invention.

[0008] Legend: 1. Base frame; 2. Top frame; 3. Slanted side slide rail; 4. Fixed frame; 5. Mounting frame; 6. Roller; 7. Rotating ring; 8. Rolling groove; 9. Motor; 10. Fixed bracket; 11. Positioning ring; 12. Positioning frame; 13. Threaded sleeve; 14. Screw; 15. Rotating block; 16. Rotating disk; 17. Sliding disk; 18. Rotating rod; 19. Guide groove; 20. Sliding rod; 21. Connecting frame; 22. Wedge block; 23. Guide rod; 24. Guide slide rail; 25. Slider; 26. Arc slide rail; 27. Laser welding head. Detailed Implementation

[0009] 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.

[0010] Reference Figures 3 to 5This invention provides an embodiment of an automatic pole rebar cage welding machine, comprising a base frame 1. The base frame 1 serves as the rigid load-bearing base for the entire automatic pole rebar cage welding machine, providing a unified installation benchmark for the inclined slide rail 3 and the top frame 2. It is welded from high-strength steel to ensure its load-bearing strength and structural stability, effectively resisting vibrations and impacts generated during equipment operation, and preventing deformation of the base frame 1 from affecting the installation accuracy of various components and the overall operational stability of the equipment. The top frame 2 is fixedly connected to the top of the base frame 1. The top frame 2 functions as a gantry-type support platform spanning the entire welding work area, used to fix the guide slide rail 24, ensuring the straightness and parallelism of the slide rail installation. The top frame 2 adopts an integrated gantry structure design, and the connection between the crossbeam and the column is reinforced with reinforcing ribs to reduce deformation during long-term use. Precise installation holes are reserved at its bottom to achieve rapid positioning and installation of the guide slide rail 24, ensuring that the straightness error of the slide rail after installation is controlled within the specified range, and providing a guarantee for the precise movement of the laser welding head 27. The top of the bottom frame 1 is provided with a slanted slide rail 3. The function of the slanted slide rail 3 is to provide high-precision axial linear motion guidance for the fixed frame 4. Two parallel heavy-duty linear guide rails are used, which are symmetrically arranged on both sides of the top of the bottom frame 1. The surface of the guide rails is hardened and ground, resulting in high hardness and strong wear resistance. The guide rails fit tightly with the fixed frame 4 and are equipped with a dustproof sealing device to prevent welding slag and dust generated during welding from entering the gap between the guide rails, thus avoiding affecting the guiding accuracy and service life. This ensures that the axial feed movement of the fixed frame 4 is smooth and accurate. The top of the slanted slide rail 3 is slidably connected to the fixed frame 4. The function of the fixed frame 4 is to integrate and support all rotating clamping mechanisms and drive them to feed axially. The fixed frame 4 is provided with a rolling assembly inside. The rolling assembly includes a mounting frame 5. The mounting frame 5 is externally fixedly connected to the inside of the fixed frame 4. The function of the mounting frame 5 is to provide rigid mounting support for the roller 6. The mounting frame 5 can achieve precise positioning and installation of the roller 6. To provide uniform support for the rotating ring 7, a roller 6 is fixedly connected inside the mounting frame 5. The function of the roller 6 is to convert the sliding friction between the rotating ring 7 and the fixed frame 4 into rolling friction, and at the same time, to provide radial positioning and support for the rotating ring 7. The roller 6 is made of wear-resistant alloy steel, and its surface is precision machined. It has a moderate contact area with the rolling groove 8, and low rolling resistance, which can effectively reduce the friction loss of the rotating ring 7 during rotation and extend the service life of the equipment. At the same time, through the symmetrical arrangement of multiple sets of rollers 6, the rotating ring 7 can be accurately radially positioned to prevent it from radially deviating. The rotating ring 7 is rotatably connected inside the fixed frame 4. The rotating ring 7 is supported by the roller 6 and rotates around its own axis under the drive of the motor 9 and the drive module. The rotating ring 7 can evenly transmit the torque transmitted by the motor 9 to the positioning ring 11 and the steel reinforcement skeleton to achieve smooth rotation of the steel reinforcement skeleton. The rotating ring 7 has a rolling groove 8 inside, and the roller 6 is externally movably connected to the inside of the rolling groove 8.The function of the rolling groove 8 is to limit the axial and radial displacement of the rotating ring 7, ensuring that it can only rotate around its own axis. It is a continuous annular groove formed on the outer circumference of the rotating ring 7, restricting the axial movement of the rotating ring 7. The rolling groove 8 is machined, ensuring that the roller 6 rolls flexibly within the groove while effectively limiting the axial movement and radial sway of the rotating ring 7, ensuring the coaxiality of the rotating ring 7 during rotation. A motor 9 is installed on one side of the fixed frame 4. The function of the motor 9 is to provide power for the rotation of the rotating ring 7. The motor 9 uses a variable frequency speed control type, and its power can be adapted according to the diameter and weight of the steel reinforcement frame. Stable and low-noise, with overload protection and emergency stop functions, it effectively prevents damage to the motor 9 due to excessive load, ensuring safe operation of the equipment. The fixed frame 4 houses a drive module, through which the motor 9 drives the rotating ring 7, which is connected to the inside of the fixed frame 4. The drive module consists of a reducer and a gear transmission mechanism. The reducer converts the high-speed rotation of the motor 9 into the low-speed, high-torque rotation required by the rotating ring 7. The gear transmission mechanism uses precision gear meshing, resulting in high transmission efficiency and low noise, allowing for precise adjustment of the rotating ring 7's rotation speed to meet the welding requirements of different specifications of steel reinforcement cages. Reference Figures 6 to 8The rolling assembly is internally fixedly connected to a fixing frame 10. The function of the fixing frame 10 is to evenly transmit the torque of the rotating ring 7 to the positioning ring 11, while ensuring the coaxiality of the positioning ring 11 and the rotating ring 7. The fixing frame 10 ensures that the positioning ring 11 and the rotating ring 7 always remain coaxial, preventing eccentricity when the steel reinforcement cage rotates. The fixing frame 10 is externally fixedly connected to a positioning ring 11. The function of the positioning ring 11 is to provide initial circumferential positioning for the longitudinal main reinforcement bars, and at the same time provide installation support for the positioning frame 12. The positioning ring 11 can quickly achieve circumferential positioning of multiple longitudinal main reinforcement bars, ensuring uniform distribution of the main reinforcement bars. Its inner wall is rigidly connected to the positioning frame 12, providing a stable installation reference for the positioning frame 12. An internal positioning frame 12 is fixedly connected to the 1 unit. The positioning frame 12 serves to accommodate and support all internal clamping mechanisms, providing a precise guiding reference for their movement. The positioning frame 12 has a precise guide groove inside, enabling smooth sliding of the sliding disc 17, wedge block 22, and other clamping mechanisms, ensuring synchronized and precise movement of each clamping mechanism. A power assembly is located inside the positioning frame 12, including a threaded sleeve 13. The threaded sleeve 13 is externally fixedly connected to the inside of the positioning frame 12. The threaded sleeve 13 forms a helical transmission pair with the screw 14, converting the rotational motion of the screw 14 into axial linear motion. The threaded sleeve 13 and the screw 14 have a tight thread fit, ensuring high transmission accuracy. The high-precision design effectively avoids slippage and loosening during threaded transmission, ensuring stable power transmission. The threaded sleeve 13 has an internal threaded connection to a screw 14, which is externally rotatably connected to the inside of the positioning frame 12. The screw 14 converts manually input rotational torque into axial thrust, providing power to the clamping mechanism. The external screw 14 is also rotatably connected to the inside of the sliding disc 17. A rotating block 15 is fixedly connected to one side of the screw 14. The rotating block 15 serves as the input end for manually operating the clamping mechanism, allowing the operator to easily rotate the screw 14. The operator can use a wrench to rotate the rotating block 15, causing the screw 14 to rotate and thus clamping and releasing the reinforcing bar cage. In operation, the rotating block 15 adopts a hexagonal structure design with anti-slip texture on the surface, making it convenient for operators to use a wrench to grip and rotate. It can effectively transmit rotational torque, making operation convenient and labor-saving. A rotating disk 16 is fixedly connected to one side of the screw 14. The external rotation of the rotating disk 16 is rotatably connected to the inside of the sliding disk 17. The function of the rotating disk 16 is to evenly transmit the axial thrust of the screw 14 to the sliding disk 17. The rotating disk 16 rotates and moves axially synchronously with the screw 14, while preventing the sliding disk 17 from rotating with the screw 14. The rotating disk 16 can both evenly transmit the axial thrust of the screw 14 to the sliding disk 17 and prevent the sliding disk 17 from rotating synchronously with the screw 14, ensuring that the sliding disk 17 only performs axial linear motion. Reference Figures 7 to 9A sliding disk 17 is rotatably connected to one side of the power assembly. The function of the sliding disk 17 is to drive all rotating rods 18 to move axially synchronously, thereby achieving synchronous radial extension and retraction of multiple wedge blocks 22. The external side of the sliding disk 17 is slidably connected to the inside of the positioning frame 12. The sliding disk 17 can move smoothly axially along the positioning frame 12 under the push of the screw 14. A rotating rod 18 is rotatably connected to one side of the sliding disk 17. The function of the rotating rod 18 is to convert the axial movement of the sliding disk 17 into the radial movement of the wedge blocks 22, thereby achieving clamping and loosening of the longitudinal main ribs. When the sliding disk 17 moves axially, the rotating rod 18 moves synchronously with it. At the same time, under the action of the sliding rod 20 and the guide groove 19, the rotating rod 18 can swing around the hinge point between itself and the sliding disk 17. Effectively transmitting motion and force, and achieving precise conversion between axial and radial motion, the rotating rod 18 has a guide groove 19 inside. The guide groove 19 has a wavy shape and its function is to convert the axial displacement of the rotating rod 18 into oscillating motion using its wavy profile, precisely controlling the radial clamping stroke and clamping force of the wedge block 22. The wavy guide groove 19 can adjust the wave amplitude according to the clamping stroke requirements of the wedge block 22, ensuring that the oscillation angle of the rotating rod 18 is precisely controllable, thereby achieving precise adjustment of the radial clamping stroke and clamping force of the wedge block 22 to adapt to the clamping requirements of main reinforcement bars of different diameters. A sliding rod 20 is slidably connected inside the guide groove 19, and the sliding rod 20 is slidably connected to the guide groove 19 outside. Internally, the sliding rod 20 functions to cooperate with the guide groove 19, causing the rotating rod 18 to swing. When the rotating rod 18 moves axially, the sliding rod 20 slides relative to it within the guide groove 19. The wavy contour of the guide groove 19 propels the rotating rod 18 to swing. The sliding rod 20 can slide flexibly within the guide groove 19, ensuring precise cooperation with it and smooth swinging of the rotating rod 18. A connecting frame 21 is fixedly connected to the outside of the sliding rod 20. One side of the connecting frame 21 is fixedly connected to the inside of the positioning frame 12. The connecting frame 21 provides rigid mounting support for the sliding rod 20, effectively fixing its position and ensuring it does not shift during operation, thus providing support for the swinging motion of the rotating rod 18. To provide a stable support reference, a wedge block 22 is rotatably connected to one side of the rotating rod 18. The function of the wedge block 22 is to directly clamp the longitudinal main reinforcement, applying the clamping force evenly to the surface of the main reinforcement. The wedge block 22 can adapt to the shape of main reinforcements of different diameters, increasing the contact area and making the clamping force distribution more uniform, thus preventing the main reinforcement from being damaged or deformed. The surface of the wedge block 22 is provided with anti-slip texture, which can fit tightly against the surface of the longitudinal main reinforcement, increasing the contact area and reducing local pressure. At the same time, its wedge structure can adapt to main reinforcements of different diameters, achieving precise clamping. The clamping surface is covered with a soft, wear-resistant material, which can effectively prevent damage to the surface of the main reinforcement. A guide rod 23 is fixedly connected to one side of the wedge block 22, and the outside of the guide rod 23 is slidably connected to the inside of the positioning frame 12.The function of the guide rod 23 is to provide precise radial guidance for the movement of the wedge block 22, ensuring that the wedge block 22 can only move in a radial straight line. The guide rod 23 can effectively limit the movement direction of the wedge block 22, preventing it from shifting or swaying during clamping, ensuring that multiple wedge blocks 22 move radially synchronously, and achieving uniform clamping of the main reinforcement. Reference Figure 1 , Figure 2 and Figure 10 A laser assembly is located at the bottom of the top frame 2. The laser assembly includes a guide rail 24, the top of which is fixedly connected to the interior of the top frame 2. The guide rail 24 provides high-precision axial movement guidance for the laser welding head 27. It employs two parallel precision linear guide rails symmetrically arranged at the bottom of the top frame 2. The guide rails use a ball bearing structure, ensuring high transmission accuracy and smooth movement. The surface is treated for corrosion resistance and wear resistance, and a dust cover is provided to effectively prevent dust and welding slag from contaminating the guide rails, ensuring the precise axial movement of the laser welding head 27. For accuracy, a slider 25 is slidably connected to the bottom of the guide rail 24. The function of the slider 25 is to drive the arc-shaped slide rail 26 and the laser welding head 27 to move axially, adjusting the axial position of the welding head. The slider 25 and the guide rail 24 are tightly fitted, and a locking device can be used to fix the slider 25 to prevent displacement during welding. Its bottom is rigidly connected to the arc-shaped slide rail 26, which can drive the arc-shaped slide rail 26 and the laser welding head 27 to move axially synchronously. The moving speed can be precisely matched according to the welding speed. The bottom of the slider 25 is fixedly connected to the arc-shaped slide rail 26. The function of the arc-shaped slide rail 26 is to provide circumferential movement guidance for the laser welding head 27, adjust the circumferential position of the welding head, and adapt to the welding needs of steel reinforcement cages of different diameters. The arc-shaped slide rail 26 adopts an arc-shaped structure design, and the curvature can be adapted to the diameter range of common steel reinforcement cages. The surface of the slide rail is precision machined and fits tightly with the slider 25 of the laser welding head 27, which can realize the smooth circumferential movement of the laser welding head 27 and accurately align the intersection of the main reinforcement and the stirrup. The laser welding head 27 is set at the bottom of the arc-shaped slide rail 26. The function of the laser welding head 27 is to emit high-frequency laser beams. A high-energy-density laser beam instantly melts and welds the intersection of the spiral stirrups and the longitudinal main bars together. Combined with the rotation and axial feed motion of the steel reinforcement cage, the laser welding head 27 can achieve continuous and automatic roll welding operations. The laser welding head 27 uses a high-power laser generator, which has high welding efficiency and good weld quality. It has a weld tracking function and can automatically align with the intersection of the main bars and stirrups. The welding parameters can be adjusted according to the steel reinforcement specifications. Combined with the rotation and axial feed motion of the steel reinforcement cage, it can achieve continuous, efficient, and fully automatic roll welding operations, which greatly improves welding quality and production efficiency.

[0011] Working principle: During operation, the main reinforcement of the pole is first inserted into the corresponding holes of the positioning ring 11 and the positioning frame 12. By using a tool to rotate the rotating block 15, the screw 14 is rotated within the threaded sleeve 13, pushing the rotating disk 16 and the sliding disk 17 to slide axially along the positioning frame 12. The sliding disk 17 drives the rotating rod 18 to rotate. At this time, the sliding rod 20 slides within the wavy guide groove 19 of the rotating rod 18, forcing the rotating rod 18 to swing around its own hinge point. This, in turn, pushes the wedge block 22 to extend radially along the guide rod 23 while swinging, thus better positioning the outer edge of the main reinforcement of the pole. The steel reinforcement cage is clamped and fixed in a shaped manner, which can clamp multiple longitudinal main bars axially and also clamp and fix them on the outer periphery, thereby completing the centering and clamping of the steel reinforcement cage. Then, the motor 9 is started, and the rotating ring 7 is driven to rotate within the fixed frame 4 through the drive module. The rotating ring 7 drives the entire clamped steel reinforcement cage to rotate at a constant speed around the axis. At this time, the laser component at the bottom of the top frame 2 is activated, the slider 25 moves axially along the guide rail 24, and the laser welding head 27 moves circumferentially along the arc-shaped rail 26. In conjunction with the rotation of the steel reinforcement cage, the fully automatic roll welding operation of the pole steel reinforcement cage is completed.

[0012] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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. An automatic roll welding machine for the steel reinforcement cage of utility poles, comprising a base frame (1), characterized in that: The top of the bottom frame (1) is fixedly connected to the top of the top frame (2). The top of the bottom frame (1) is provided with a slanted slide rail (3). The top of the slanted slide rail (3) is slidably connected to a fixed frame (4). The fixed frame (4) is provided with a rolling assembly inside. The rolling assembly is fixedly connected to a fixed frame (10). The fixed frame (10) is fixedly connected to a positioning ring (11) outside. The positioning ring (11) is fixedly connected to a positioning frame (12) inside. The positioning frame (12) is provided with a power assembly inside. A sliding disk (17) is rotatably connected to one side of the component, and a rotating rod (18) is rotatably connected to one side of the sliding disk (17). A guide groove (19) is provided inside the rotating rod (18), and a sliding rod (20) is slidably connected inside the guide groove (19). A connecting frame (21) is fixedly connected to the outside of the sliding rod (20). A wedge block (22) is rotatably connected to one side of the rotating rod (18), and a guide rod (23) is fixedly connected to one side of the wedge block (22). A laser assembly is provided at the bottom of the top frame (2).

2. The automatic welding machine for the steel reinforcement cage of utility poles according to claim 1, characterized in that: The rolling assembly includes a mounting frame (5), the outside of which is fixedly connected to the inside of a fixed frame (4). A roller (6) is fixedly connected inside the mounting frame (5). A rotating ring (7) is rotatably connected inside the fixed frame (4). A rolling groove (8) is opened inside the rotating ring (7). A motor (9) is installed on one side of the fixed frame (4).

3. The automatic welding machine for the steel reinforcement cage of utility poles according to claim 1, characterized in that: The power assembly includes a threaded sleeve (13), the outside of which is fixedly connected to the inside of the positioning frame (12). The inside of the threaded sleeve (13) is threadedly connected to a screw (14), a rotating block (15) is fixedly connected to one side of the screw (14), and a rotating disk (16) is fixedly connected to one side of the screw (14).

4. The automatic welding machine for the steel reinforcement cage of utility poles according to claim 1, characterized in that: The laser assembly includes a guide rail (24), the top of which is fixedly connected to the inside of the top frame (2), and a slider (25) is slidably connected to the bottom of the guide rail (24). An arc-shaped rail (26) is fixedly connected to the bottom of the slider (25), and a laser welding head (27) is provided at the bottom of the arc-shaped rail (26).

5. The automatic welding machine for the steel reinforcement cage of utility poles according to claim 2, characterized in that: The roller (6) is externally connected to the inside of the rolling groove (8), and the fixed frame (4) is provided with a drive module. The motor (9) drives the rotating ring (7) to rotate through the drive module and is connected to the inside of the fixed frame (4).

6. The automatic welding machine for the steel reinforcement cage of utility poles according to claim 3, characterized in that: The screw (14) is externally rotatably connected to the inside of the positioning frame (12), and the rotating disk (16) is externally rotatably connected to the inside of the sliding disk (17).

7. The automatic welding machine for the steel reinforcement cage of utility poles according to claim 1, characterized in that: One side of the connecting frame (21) is fixedly connected to the inside of the positioning frame (12), and the outside of the sliding rod (20) is slidably connected to the inside of the guide groove (19).

8. The automatic welding machine for the steel reinforcement cage of utility poles according to claim 1, characterized in that: The guide rod (23) is externally slidably connected to the inside of the positioning frame (12), and the guide groove (19) is wavy.

9. An automatic welding machine for the reinforcing steel cage of utility poles according to claim 3, characterized in that: The external sliding disk (17) is slidably connected to the inside of the positioning frame (12), and the external rotating screw (14) is rotatably connected to the inside of the sliding disk (17).