Welding equipment for steel pipe poles used in the production of power transmission steel pipe towers

Abstract

This invention discloses a welding equipment for steel pipe poles used in the production of power transmission steel pipe towers, and relates to the field of welding technology. The welding equipment includes a frame, a welding mechanism, and an adjustment mechanism. A feeding mechanism is installed on the top of a strip-shaped base. The welding mechanism includes a rotating seat and a mechanical arm. The mechanical arm is mounted on top of the rotating seat, and a mechanical forearm is installed at the top of the mechanical arm. A welding gun is installed at the end of the mechanical forearm away from the mechanical arm. A fume treatment component is installed between the surface of the welding gun and the surface of the rotating seat. The adjustment mechanism includes a rotating worktable and a U-shaped groove. A V-shaped base is installed on the top of the rotating worktable through the U-shaped groove. Cylindrical rollers are rolled on the inner side of the V-shaped base. Connecting teeth are hinged to the top edge of the V-shaped base, and rollers are rolled on the top of the connecting teeth, achieving adjustability and convenient position adjustment for welding the inner side of the flange.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to a welding equipment for steel pipe poles used in the production of power transmission steel pipe towers. Background Technology

[0002] With the continuous development of technology and the rapid progress of society, the application of power transmission steel pipe towers is becoming increasingly common. During the production of power transmission steel pipe towers, flanges and short pipes are first welded onto "small components," and then connected as a whole to the steel pipe pole. This process facilitates control over the flatness of the flanges, the position of the holes, and the concentricity of the short pipes and the steel pipes during factory prefabrication. It also facilitates rotational welding on specialized tooling or roller frames.

[0003] For example, a steel pipe pole welding device, as disclosed in Chinese Patent Publication No. CN222154404U, includes a base, a support slidably connected to the top of the base, a turntable rotatably connected to the middle of the support via a bearing, a welding torch mounted on one side of the support, and two receiving components fixed to the top of the base. Each receiving component includes two rotating rollers. Four first support plates are symmetrically fixed to the top of the base. The two ends of each of the rotating rollers are rotatably connected to the tops of two adjacent first support plates via bearings. A belt is fitted over the surface of each of the rotating rollers. The device comprises a support, a turntable, rotating rollers, and a belt. The device, consisting of belts, guide rollers, slide bars, and cylinders, places larger and heavier steel pipe rods on two supporting components. Starting the reduction motor, with the assistance of connecting rods, moves the belts on the two supporting components together, thus rotating the steel pipe rod. The flange to be welded is placed between the turntable and the welding end of the steel pipe rod. Activating the cylinder moves the turntable towards the steel pipe rod, pressing the flange tightly against the welding end of the steel pipe rod. In conjunction with the rotating steel pipe rod, the welding torch performs circumferential welding, reducing manual welding operations and improving the efficiency of flange welding.

[0004] In existing technical references, a flange can be mounted on a turntable for synchronous rotation and welding can be performed using a welding torch. However, this design makes it inconvenient to adjust the direction of the flange and hinders welding on the inside of the flange, resulting in inconvenient welding. Summary of the Invention

[0005] To solve the above technical problems, the present invention is implemented through the following technical solution:

[0006] A welding equipment for steel pipe poles used in the production of power transmission steel pipe towers, comprising:

[0007] A frame, and a strip base fixedly installed on the side of the frame surface, wherein a feeding mechanism is installed on the top of the strip base;

[0008] A welding mechanism includes a rotating base and a mechanical arm. The rotating base is fixedly mounted on the surface of the frame. The mechanical arm is mounted on the rotating end of the rotating base and on the top of the rotating base. A mechanical forearm is mounted on the top of the mechanical arm. A welding gun is mounted on the end of the mechanical forearm away from the mechanical arm. A fume treatment assembly is installed between the surface of the welding gun and the surface of the rotating base. The mechanical arm supports the mechanical forearm, and the angle of the welding gun can be adjusted through the linkage between the mechanical arm and the mechanical forearm. At the same time, the rotation of the rotating end of the rotating base can drive the mechanical arm to rotate, and the position of the welding gun can be adjusted through the connection of the mechanical forearm. This facilitates welding at different positions of steel pipe rods, has strong adaptability, and reduces limitations.

[0009] The adjustment mechanism includes a rotating worktable and a U-shaped groove. The rotating worktable is fixedly installed in the middle of the top of the frame. The U-shaped groove is formed at the rotating end of the top of the rotating worktable. A V-shaped base is installed on the top of the rotating worktable through the U-shaped groove. A hydraulic cylinder is hinged to the top of the rotating worktable near the V-shaped base. A cylindrical roller is rolled on the inner side of the V-shaped base. A connecting tooth is hinged to the side of the top of the V-shaped base. A roller is rolled on the top of the connecting tooth. The V-shaped base provides initial positioning of the short pipe. The extension of the hydraulic cylinder's telescopic end applies an upward pushing force to the bottom of the connecting tooth, causing the connecting tooth to drive the roller to rotate closer to the short pipe. The short pipe is fixed by the contact between the outer surface of the roller and the surface of the short pipe, preventing the short pipe from shifting arbitrarily.

[0010] Furthermore, the feeding mechanism is used to lift the steel pipe poles of the power transmission steel tower that need to be welded, and to feed the steel pipe poles, and to drive the steel pipe poles to rotate circumferentially by rotation;

[0011] The feeding mechanism includes a lifting frame and a linear actuator. The lifting frame is fixedly installed on the top of the strip base, and the linear actuator is fixedly installed on the top of the strip base near the lifting frame. Ball bearings are rolled on the concave surface of the top of the lifting frame. A support rotator is fixedly installed at the output end of the linear actuator. A servo motor is fixedly installed at the rotating end of the top of the support rotator. A conical drive wheel is fixedly installed at the output end of the servo motor via a coupling. Anti-slip pads are fixedly connected to the conical surface and outer circular surface of the conical drive wheel. By utilizing the contact between the bottom of the outer circular surface of the steel pipe rod and the spherical surface of the ball bearings, the steel pipe rod can be lifted. The rotation of the top rotating end of the support rotator drives the servo motor and the conical drive wheel to rotate, so that the conical tips of the two symmetrical conical drive wheels face each other. The linear drive is then activated, and the movement of the output end of the linear drive drives the support rotator to move, causing the two symmetrical conical drive wheels to move towards each other. The conical surface of the conical drive wheel contacts the outer surface of the steel pipe rod. The rotation of the output end of the servo motor drives the conical drive wheel to roll, and the anti-slip pad on the conical surface of the conical drive wheel fits against the steel pipe rod, increasing the friction and conveying the steel pipe rod towards the V-shaped base, thus automatically feeding the steel pipe rod.

[0012] Furthermore, there are two lifting frames, which are evenly distributed on the top of the strip base; there are four linear actuators, which are evenly installed on the top of the strip base; and the ball bearings are evenly distributed on the arc-shaped concave surface at the top of the lifting frame.

[0013] The conical end of the conical drive wheel rotates away from the steel pipe rod. The central axis of the conical drive wheel is parallel to the axis of the steel pipe rod. The output of the linear actuator drives the symmetrical servo motors on both sides and the conical drive wheel to move closer to the steel pipe rod. The anti-slip pads on the outer surface of the conical drive wheel contact the outer surface of the steel pipe rod, increasing friction. The output of the servo motors then drives the conical drive wheel to roll, causing the steel pipe rod to rotate. Compared to existing technologies for supporting the steel pipe rod, this method achieves multiple functions through different states of the conical drive wheel. Furthermore, the rolling support of the cylindrical rollers on the short pipe allows the short pipe and the steel pipe rod to roll synchronously, facilitating welding of the weld seam between the short pipe and the steel pipe rod by the welding gun.

[0014] Furthermore, the strip base is installed horizontally, and there are two strip bases, which are installed symmetrically along the central axis of the frame.

[0015] Furthermore, the mechanical arm is installed at an angle, and the mechanical forearm is installed at an angle.

[0016] Furthermore, the flue gas treatment assembly includes a flue gas treatment box and a conical air inlet hopper. The flue gas treatment box is fixedly installed on the side of the rotating base surface, and the conical air inlet hopper is fixedly installed on the surface of the welding torch and near the welding head. A suction fan is fixedly installed on the top of the flue gas treatment box, and a flexible hose is connected to the air inlet at the top of the suction fan. A turning pipe is connected to the top of the conical air inlet hopper, and the end of the turning pipe away from the conical air inlet hopper is connected to the top of the flexible hose. A spiral guide groove is formed on the inner side of the conical air inlet hopper. By utilizing the suction power of the suction fan, and through the connection of the hose and the bend pipe, the toxic and harmful gases generated during the welding of steel pipe rods by the outside gas are brought into the interior of the conical air intake hopper. This allows the toxic and harmful gases to be extracted. At the same time, the spiral guide groove guides the gas in a spiral flow. The spiral groove forces the airflow to move upward in a spiral motion along the groove, turning the axial air intake into a swirling flow and a composite axial flow. The swirling flow generates centrifugal negative pressure, resulting in lower pressure at the center, increasing suction power and suction distance, reducing short-circuiting of the edge airflow, and making the air intake more complete and the flow rate more stable.

[0017] Furthermore, the inner diameter of the conical air intake gradually increases from top to bottom, as does the inner side of the spiral guide groove.

[0018] Furthermore, the convex-shaped grooves are evenly distributed on the rotating end of the top of the rotating worktable, the hydraulic cylinders are installed at an angle, there are four hydraulic cylinders, and the four hydraulic cylinders are evenly distributed on the top of the rotating worktable.

[0019] The short pipe is rotated by the rotating end at the top of the rotating worktable and supported by the V-shaped base. This allows the end of the short pipe to face the welding gun, which, through the linkage of the mechanical arm and the mechanical forearm, facilitates the welding gun to weld the inner part of the short pipe end and the inner part of the flange, which have been adjusted to a certain position.

[0020] Furthermore, the V-shaped opening of the V-shaped base faces upward, and there are two V-shaped bases, which are symmetrically installed along the central axis of the rotating worktable.

[0021] Furthermore, the cylindrical rollers are evenly distributed on the inner side of the V-shaped base, the connecting teeth are installed at an angle, and the bottom end of the connecting teeth is hinged to the telescopic end of the hydraulic cylinder.

[0022] The beneficial effects of the technical solution provided by this invention include:

[0023] 1. The welding gun angle can be adjusted by supporting the mechanical arm with the mechanical large arm and the mechanical arm working together. At the same time, the rotation of the rotating end at the top of the rotating seat can drive the mechanical large arm to rotate. With the connection of the mechanical arm, the position of the welding gun can be adjusted, which helps to weld steel pipe rods at different positions, with strong adaptability and reduced limitations.

[0024] Second, by utilizing the suction power of the suction fan, and through the connection of the hose and the turning pipe, the toxic and harmful gases generated during the welding of the steel pipe rod by the welding gun are brought into the conical air intake hopper by the outside air. This allows the toxic and harmful gases to be sucked up. At the same time, the spiral guide groove guides the gas in a spiral flow. The spiral groove forces the airflow to move upward in a spiral motion along the groove, turning the axial air intake into a swirling flow and a composite axial flow. The swirling flow generates centrifugal negative pressure, resulting in lower central pressure, increasing suction power and suction distance, reducing short-circuiting of the edge airflow, and making the air intake more complete and the flow rate more stable.

[0025] Third, the short pipe is initially limited by the V-shaped base, and the extension of the hydraulic cylinder's telescopic end can apply an upward pushing force to the bottom of the connecting teeth, causing the connecting teeth to drive the roller to rotate closer to the short pipe. By contacting the outer surface of the roller with the surface of the short pipe, the short pipe can be fixed, making it less likely for the short pipe to shift randomly.

[0026] Fourth, by rotating the top of the rotating worktable and supporting it with the V-shaped base, the short pipe is driven to rotate, so that the end of the short pipe faces the welding gun. This facilitates the welding gun to weld the inner part of the short pipe end and the inner part of the flange through the linkage of the mechanical arm and the mechanical arm.

[0027] 5. By moving the output end of the linear actuator, the support rotator can be moved, causing the two symmetrical conical drive wheels on both sides to move towards each other. The conical surface of the conical drive wheel contacts the outer circle surface of the steel pipe rod. By rotating the output end of the servo motor, the conical drive wheel can be driven to roll. The anti-slip pad on the conical surface of the conical drive wheel is in contact with the steel pipe rod, which can increase the friction and transport the steel pipe rod towards the V-shaped base, thereby automatically feeding the steel pipe rod.

[0028] VI. By aligning the central axis of the conical drive wheel with the axis of the steel pipe rod, and again using the output of the linear actuator to drive the symmetrical servo motors on both sides and the conical drive wheel to move towards the side closer to the steel pipe rod, the anti-slip pads on the outer surface of the conical drive wheel come into contact with the outer surface of the steel pipe rod, increasing the friction. The output of the servo motor drives the conical drive wheel to roll, causing the steel pipe rod to rotate. Compared with the existing technology for supporting the steel pipe rod, multiple functions can be achieved through different states of the conical drive wheel. Furthermore, with the rolling support of the cylindrical rollers on the short pipe, the short pipe and the steel pipe rod roll synchronously, facilitating the welding torch to weld the seam between the short pipe and the steel pipe rod. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a steel pipe pole welding equipment for the production of power transmission steel pipe towers, provided by an embodiment of the present invention.

[0030] Figure 2 A bottom view structural diagram of a steel pipe pole welding equipment for producing power transmission steel pipe towers, provided in an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the connection structure between the welding mechanism and the frame provided in an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the internal structure of the conical air intake cross-section provided in an embodiment of the present invention;

[0033] Figure 5 Provided for embodiments of the present invention Figure 4 A magnified view of the structure at point A in the middle;

[0034] Figure 6 This is a schematic diagram of the connection structure between the adjustment mechanism and the frame provided in an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the overall structure of the adjustment mechanism provided in an embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the connection structure between the feeding mechanism and the frame provided in an embodiment of the present invention.

[0037] In the diagram: 1. Frame; 2. Strip base; 3. Feeding mechanism; 4. Welding mechanism; 5. Adjustment mechanism; 31. Lifting frame; 32. Linear actuator; 33. Ball bearing; 34. Support rotator; 35. Servo motor; 36. Conical drive wheel; 37. Anti-slip pad; 41. Rotating seat; 42. Mechanical arm; 43. Mechanical forearm; 44. Welding gun; 45. Flue gas treatment assembly; 451. Flue gas treatment box; 452. Conical air inlet hopper; 453. Suction fan; 454. Hose; 455. Turning pipe; 456. Spiral guide groove; 51. Rotating worktable; 52. T-shaped groove; 53. V-shaped base; 54. Hydraulic cylinder; 55. Cylindrical roller; 56. Connecting tooth; 57. Roller. Detailed Implementation

[0038] Example 1, see Figures 1-5 A technical solution is provided:

[0039] A welding equipment for steel pipe poles used in the production of power transmission steel pipe towers, comprising:

[0040] The frame 1 and the strip base 2 fixedly installed on the side of the surface of the frame 1, with a feeding mechanism 3 installed on the top of the strip base 2;

[0041] The strip base 2 is installed horizontally. There are two strip bases 2, and the two strip bases 2 are installed symmetrically along the central axis of the frame 1.

[0042] Welding mechanism 4 includes a rotating base 41 and a mechanical arm 42. The rotating base 41 is fixedly installed on the surface of the frame 1. The mechanical arm 42 is installed on the rotating end of the top of the rotating base 41. The mechanical arm 42 is installed on the top of the rotating base 41. A mechanical arm 43 is installed at the top of the mechanical arm 42. A welding gun 44 is installed at the end of the mechanical arm 43 away from the mechanical arm 42. A fume treatment assembly 45 is installed between the surface of the welding gun 44 and the surface of the rotating base 41.

[0043] The mechanical arm 42 supports the mechanical arm 43, and the angle of the welding gun 44 can be adjusted by the linkage between the mechanical arm 42 and the mechanical arm 43. At the same time, the rotation of the rotating end at the top of the rotating seat 41 can drive the mechanical arm 42 to rotate, and with the connection of the mechanical arm 43, the position of the welding gun 44 can be adjusted, which helps to weld different positions of the steel pipe rod.

[0044] The mechanical boom 42 is installed at an angle, and the mechanical arm 43 is installed at an angle.

[0045] The flue gas treatment assembly 45 includes a flue gas treatment box 451 and a conical air inlet 452. The flue gas treatment box 451 is fixedly installed on the side of the surface of the rotating seat 41. The conical air inlet 452 is fixedly installed on the surface of the welding gun 44 and close to the welding head. A suction fan 453 is fixedly installed on the top of the flue gas treatment box 451. The air inlet at the top of the suction fan 453 is connected to a flexible hose 454. The top of the conical air inlet 452 is connected to a turning pipe 455. The end of the turning pipe 455 away from the conical air inlet 452 is connected to the top of the flexible hose 454. A spiral guide groove 456 is opened on the inner side of the conical air inlet 452.

[0046] The suction fan 453 is turned on to start operation. Utilizing the suction power of the suction fan 453, and with the connection of the hose 454 and the turning pipe 455, the external gas carrying the toxic and harmful gases generated when the welding gun 44 is welding the steel pipe rod enters the interior of the conical air intake hopper 452, thus sucking in the toxic and harmful gases. At the same time, the spiral guide groove 456 guides the gas in a spiral flow. The spiral groove forces the airflow to move upward in a spiral motion along the groove, turning the axial air intake into a swirling flow and a composite axial flow. The swirling flow generates centrifugal negative pressure, resulting in lower central pressure, increasing suction power and suction distance, reducing short-circuiting of the edge airflow, and making the air intake more complete and the flow rate more stable.

[0047] The inner diameter of the conical air intake 452 gradually increases from top to bottom, and the spiral guide grooves 456 are evenly distributed on the inner side of the conical air intake 452.

[0048] Example 2, based on Example 1, see [link / reference] Figures 1 to 7 A technical solution is provided:

[0049] Adjustment mechanism 5 includes a rotating worktable 51 and a U-shaped groove 52. The rotating worktable 51 is fixedly installed at the middle of the top of the frame 1. The U-shaped groove 52 is formed at the rotating end of the top of the rotating worktable 51. A V-shaped base 53 is installed on the top of the rotating worktable 51 through the U-shaped groove 52. A hydraulic cylinder 54 is hingedly installed on the top of the rotating worktable 51 near the V-shaped base 53. Cylindrical rollers 55 are rolled on the inner side of the V-shaped base 53. Connecting teeth 56 are hingedly installed on the side of the top of the V-shaped base 53. A roller 57 is rolled on the top of the connecting tooth 56. The short pipe that needs to be pre-welded is placed inside the V-shaped base 53, which can initially limit the short pipe inside the V-shaped base 53. The hydraulic cylinder 54 is then activated. By extending the telescopic end of the hydraulic cylinder 54, the telescopic end of the hydraulic cylinder 54 can apply an upward pushing force to the bottom end of the connecting tooth 56, causing the connecting tooth 56 to drive the roller 57 to rotate closer to the short pipe. By contacting the outer circular surface of the roller 57 with the surface of the short pipe, the short pipe can be fixed, making it less likely for the short pipe to shift randomly.

[0050] The convex grooves 52 are evenly distributed on the rotating end of the top of the rotating worktable 51. The hydraulic cylinders 54 are installed at an angle. There are four hydraulic cylinders 54, and the four hydraulic cylinders 54 are evenly distributed on the top of the rotating worktable 51. After the short pipe in the V-shaped base 53 is pressed and fixed by the rollers 57, the rotating worktable 51 is turned on to start working. The rotating end of the top of the rotating worktable 51 is rotated, and under the support of the V-shaped base 53, the short pipe is driven to rotate, so that the end of the short pipe faces the welding gun 44. This facilitates the welding gun 44 to weld the inner side of the short pipe end and the inner side of the flange joint, which are adjusted in position, through the linkage of the mechanical arm 42 and the mechanical arm 43.

[0051] The V-shaped opening of the V-shaped base 53 faces upward. There are two V-shaped bases 53, and the two V-shaped bases 53 are symmetrically installed along the central axis of the rotating worktable 51.

[0052] Cylindrical rollers 55 are evenly distributed on the inner side of the V-shaped base 53. Connecting teeth 56 are installed at an angle, and the bottom end of the connecting teeth 56 is hinged to the telescopic end of the hydraulic cylinder 54.

[0053] Example 3, based on Examples 1 and 2, see [reference] Figures 1 to 8 A technical solution is provided:

[0054] The feeding mechanism 3 is used to lift the steel pipe poles of the power transmission steel tower that need to be welded and to feed the steel pipe poles. It also uses rotation to drive the steel pipe poles to rotate circumferentially.

[0055] The feeding mechanism 3 includes a lifting frame 31 and a linear actuator 32. The lifting frame 31 is fixedly installed on the top of the strip base 2, and the linear actuator 32 is fixedly installed on the top of the strip base 2 near the lifting frame 31. A ball bearing 33 is rolled on the arc-shaped concave surface of the top of the lifting frame 31. A support rotator 34 is fixedly installed on the output end of the linear actuator 32. A servo motor 35 is fixedly installed on the rotating end of the top of the support rotator 34. A conical drive wheel 36 is fixedly installed on the output end of the servo motor 35 through a coupling. Anti-slip pads 37 are fixedly connected to the conical surface and outer circular surface of the outer side of the conical drive wheel 36. The steel pipe pole of the power transmission tower that needs to be welded is placed on the top of the lifting frame 31 by the robotic arm of an external device. The bottom of the outer circular surface of the steel pipe pole is in contact with the spherical surface of the ball bearing 33 to support the steel pipe pole. The system is activated, and the support rotator 34 is turned on. The rotation of the top rotating end of the support rotator 34 drives the servo motor 35 and the conical drive wheel 36 to rotate, so that the conical tips of the two symmetrical conical drive wheels 36 face each other. The linear actuator 32 is also activated, and the movement of the output end of the linear actuator 32 drives the support rotator 34 to move, so that the two symmetrical conical drive wheels 36 move towards each other. The conical surface of the conical drive wheel 36 contacts the outer circular surface of the steel pipe rod. The servo motor 35 is then activated, and the rotation of the output end of the servo motor 35 drives the conical drive wheel 36 to roll. The anti-slip pad 37 on the conical surface of the conical drive wheel 36 is in contact with the steel pipe rod, which increases the friction and conveys the steel pipe rod towards the V-shaped base 53, thereby automatically feeding the steel pipe rod.

[0056] There are two lifting frames 31, which are evenly distributed on the top of the strip base 2. There are four linear actuators 32, which are evenly installed on the top of the strip base 2. The ball bearings 33 are evenly distributed on the arc-shaped concave surface at the top of the lifting frame 31. After the conical drive wheel 36 finishes conveying the steel pipe rod, the output end of the linear actuator 32 drives the symmetrically positioned servo motors 35 and the conical drive wheel 36 to move outward. The rotation of the top of the support rotator 34 drives the servo motors 35 and the conical drive wheel 36 to rotate in the opposite direction. The conical end of the conical drive wheel 36 rotates away from the steel pipe rod. The central axis of the conical drive wheel 36 is aligned with the steel pipe rod. With the axes parallel, the linear driver 32 outputs again drive the symmetrical servo motors 35 and conical drive wheels 36 on both sides to move towards the side closer to the steel pipe rod. The anti-slip pads 37 on the outer surface of the conical drive wheel 36 are in contact with the outer surface of the steel pipe rod, and the friction increases. The output of the servo motor 35 drives the conical drive wheel 36 to roll, causing the steel pipe rod to rotate. Compared with the existing technology for supporting the steel pipe rod, multiple functions can be achieved through different states of the conical drive wheel 36. Under the rolling support of the cylindrical roller 55 on the short pipe, the short pipe and the steel pipe rod roll synchronously, which facilitates the welding gun 44 to perform welding processing on the weld seam of the short pipe and the steel pipe rod.

[0057] In use, the short pipe that needs to be pre-welded is first placed inside the V-shaped base 53, which can initially limit the short pipe inside the V-shaped base 53. Then, the operator starts the hydraulic cylinder 54 to work. By extending the telescopic end of the hydraulic cylinder 54, the telescopic end of the hydraulic cylinder 54 can apply an upward pushing force to the bottom end of the connecting tooth 56, so that the connecting tooth 56 drives the roller 57 to rotate closer to the short pipe. By contacting the outer circular surface of the roller 57 with the surface of the short pipe, the short pipe can be fixed, making it less likely for the short pipe to shift randomly.

[0058] The operator starts the rotating worktable 51 and rotates it using the rotating end at the top of the rotating worktable 51. With the support of the V-shaped base 53, the short pipe is rotated so that the end of the short pipe faces the welding gun 44. The mechanical arm 42 supports the mechanical arm 43, and the angle of the welding gun 44 can be adjusted through the linkage of the mechanical arm 42 and the mechanical arm 43. At the same time, the rotation of the rotating end at the top of the rotating base 41 drives the mechanical arm 42 to rotate, and with the connection of the mechanical arm 43, the position of the welding gun 44 can be adjusted. This facilitates the welding gun 44 to weld the inner side of the short pipe end and the inner side of the flange joint, which are adjusted in position, through the linkage of the mechanical arm 42 and the mechanical arm 43.

[0059] At the same time, the staff turned on the suction fan 453 to work. Using the suction power of the suction fan 453, and with the connection of the hose 454 and the turning pipe 455, the outside gas carrying the toxic and harmful gases generated when the welding gun 44 welds the steel pipe rod enters the interior of the conical air intake hopper 452, so that the toxic and harmful gases can be sucked out. At the same time, the spiral guide groove 456 guides the gas in a spiral flow. The spiral groove forces the airflow to move upward in a spiral motion along the groove, turning the axial air intake into a swirling flow and a composite axial flow. The swirling flow generates centrifugal negative pressure, the center pressure is lower, the suction power and suction distance are increased, the short circuit of the edge airflow is reduced, and the air intake is more sufficient and the flow rate is more stable.

[0060] After the short pipe and flange are welded, the welding gun 44 is lifted by the linkage of the mechanical arm 42 and the mechanical arm 43, and the short pipe and flange are rotated in opposite directions by rotating the worktable 51, so that the short pipe and the steel pipe rod to be welded are in the same direction.

[0061] Furthermore, the steel pipe pole of the power transmission tower that needs to be welded is placed on the top of the lifting frame 31 by the robotic arm of the external equipment. By utilizing the bottom of the outer circular surface of the steel pipe pole to fit against the spherical surface of the ball bearing 33, the steel pipe pole can be lifted, and the support rotator 34 is activated. The rotation of the top rotating end of the support rotator 34 drives the servo motor 35 and the conical drive wheel 36 to rotate, so that the conical tips of the two symmetrical conical drive wheels 36 face each other. The linear actuator 32 is then activated. The movement of the output end 32 can drive the support rotator 34 to move, so that the two symmetrical conical drive wheels 36 move towards each other. The conical surface of the conical drive wheel 36 contacts the outer circle surface of the steel pipe rod. The servo motor 35 is turned on to work. The rotation of the output end of the servo motor 35 can drive the conical drive wheel 36 to roll. The anti-slip pad 37 on the conical surface of the conical drive wheel 36 is in contact with the steel pipe rod, which can increase the friction and transport the steel pipe rod towards the V-shaped base 53, thereby automatically feeding the steel pipe rod.

[0062] Furthermore, after the conical drive wheel 36 has finished conveying the steel pipe pole, the output end of the linear actuator 32 drives the symmetrically positioned servo motors 35 and the conical drive wheel 36 to move outward. The rotation of the top of the support rotator 34 then drives the servo motors 35 and the conical drive wheel 36 to rotate in the opposite direction, causing the conical end of the conical drive wheel 36 to rotate away from the steel pipe pole. The central axis of the conical drive wheel 36 is parallel to the axis of the steel pipe pole. The output end of the linear actuator 32 then drives the symmetrically positioned servo motors 35 and the conical drive wheel 36 to move outward again. The conical drive wheel 36 moves closer to the steel pipe rod, and the anti-slip pad 37 on the outer surface of the conical drive wheel 36 comes into contact with the outer surface of the steel pipe rod. As the friction increases, the conical drive wheel 36 is driven to roll through the output end of the servo motor 35, causing the steel pipe rod to rotate. Compared with the existing technology for supporting the steel pipe rod, multiple functions can be achieved through different states of the conical drive wheel 36. Furthermore, under the rolling support of the cylindrical roller 55 on the short pipe, the short pipe and the steel pipe rod roll synchronously, which facilitates the welding gun 44 to perform welding processing on the weld seam of the short pipe and the steel pipe rod.

[0063] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A welding equipment for steel pipe poles used in the production of power transmission steel pipe towers, characterized in that, include: A frame (1) and a strip base (2) fixedly installed on the side of the surface of the frame (1), wherein a feeding mechanism (3) is installed on the top of the strip base (2); Welding mechanism (4), the welding mechanism (4) includes a rotating seat (41) and a mechanical arm (42). The rotating seat (41) is fixedly installed on the surface of the frame (1). The mechanical arm (42) is installed on the rotating end of the top of the rotating seat (41). The mechanical arm (42) is installed on the top of the rotating seat (41). A mechanical arm (43) is installed at the top of the mechanical arm (42). A welding gun (44) is installed at the end of the mechanical arm (43) away from the mechanical arm (42). A fume treatment assembly (45) is installed between the surface of the welding gun (44) and the surface of the rotating seat (41). Adjustment mechanism (5), the adjustment mechanism (5) includes a rotating worktable (51) and a U-shaped groove (52). The rotating worktable (51) is fixedly installed at the middle of the top of the frame (1). The U-shaped groove (52) is opened at the rotating end of the top of the rotating worktable (51). A V-shaped base (53) is installed on the top of the rotating worktable (51) through the U-shaped groove (52). A hydraulic cylinder (54) is hinged on the top of the rotating worktable (51) and close to the V-shaped base (53). A cylindrical roller (55) is rolled on the inner side of the V-shaped base (53). A connecting tooth (56) is hinged on the side of the top of the V-shaped base (53). A roller (57) is rolled on the top of the connecting tooth (56).

2. The steel pipe pole welding equipment for producing power transmission steel pipe towers according to claim 1, characterized in that: The feeding mechanism (3) is used to lift the steel pipe pole of the power transmission steel tower that needs to be welded, and to feed the steel pipe pole. It also uses rotation to drive the steel pipe pole to rotate circumferentially. The feeding mechanism (3) includes a lifting frame (31) and a linear driver (32). The lifting frame (31) is fixedly installed on the top of the strip base (2). The linear driver (32) is fixedly installed on the top of the strip base (2) and close to the lifting frame (31). A ball bearing (33) is rolled on the arc-shaped concave surface at the top of the lifting frame (31). A support rotator (34) is fixedly installed on the output end of the linear driver (32). A servo motor (35) is fixedly installed on the rotating end at the top of the support rotator (34). A conical drive wheel (36) is fixedly installed on the output end of the servo motor (35) through a coupling. Anti-slip pads (37) are fixedly connected to the conical surface and the outer circular surface of the conical drive wheel (36).

3. The steel pipe pole welding equipment for producing power transmission steel pipe towers according to claim 2, characterized in that: There are two lifting frames (31), and the two lifting frames (31) are evenly distributed on the top of the strip base (2). There are four linear actuators (32), and the four linear actuators (32) are evenly installed on the top of the strip base (2). The balls (33) are evenly distributed on the arc-shaped concave surface at the top of the lifting frame (31).

4. The steel pipe pole welding equipment for producing power transmission steel pipe towers according to claim 1, characterized in that: The strip base (2) is installed horizontally, and there are two strip bases (2), and the two strip bases (2) are installed symmetrically along the central axis of the frame (1).

5. The steel pipe pole welding equipment for producing power transmission steel pipe towers according to claim 1, characterized in that: The mechanical arm (42) is installed at an angle, and the mechanical arm (43) is installed at an angle.

6. The steel pipe pole welding equipment for producing power transmission steel pipe towers according to claim 1, characterized in that: The flue gas treatment assembly (45) includes a flue gas treatment box (451) and a conical air inlet hopper (452). The flue gas treatment box (451) is fixedly installed on the side of the rotating seat (41). The conical air inlet hopper (452) is fixedly installed on the surface of the welding gun (44) and close to the welding head. A suction fan (453) is fixedly installed on the top of the flue gas treatment box (451). The air inlet at the top of the suction fan (453) is connected to a flexible hose (454). The top of the conical air inlet hopper (452) is connected to a turning pipe (455). The end of the turning pipe (455) away from the conical air inlet hopper (452) is connected to the top of the flexible hose (454). A spiral guide groove (456) is opened on the inner side of the conical air inlet hopper (452).

7. The steel pipe pole welding equipment for producing power transmission steel pipe towers according to claim 6, characterized in that: The conical air intake hopper (452) has an inner diameter that gradually increases from top to bottom, and the spiral guide grooves (456) are evenly distributed on the inner side of the conical air intake hopper (452).

8. The steel pipe pole welding equipment for producing power transmission steel pipe towers according to claim 1, characterized in that: The convex grooves (52) are evenly distributed on the rotating end of the top of the rotating worktable (51). The hydraulic cylinders (54) are installed at an angle. There are four hydraulic cylinders (54), and the four hydraulic cylinders (54) are evenly distributed on the top of the rotating worktable (51).

9. The steel pipe pole welding equipment for producing power transmission steel pipe towers according to claim 1, characterized in that: The V-shaped opening of the V-shaped base (53) faces upward. There are two V-shaped bases (53), and the two V-shaped bases (53) are symmetrically installed along the central axis of the rotating worktable (51).

10. The steel pipe pole welding equipment for producing power transmission steel pipe towers according to claim 1, characterized in that: The cylindrical rollers (55) are evenly distributed on the inner side of the V-shaped base (53), the connecting teeth (56) are installed at an angle, and the bottom end of the connecting teeth (56) is hinged to the telescopic end of the hydraulic cylinder (54).

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