A steel pipe pole ladder climbing ladder assembly butt welding device

Abstract

The utility model relates to ladder stand production technical field, and disclose a kind of steel pipe pole ladder stand butt welding device, it include: base, base top fixed mounting is grouped distribution's stand; Adjusting structure, adjusting structure includes lifting frame, swing arm and stop block, lifting frame is movably arranged in the side of stand and can be along the vertical displacement of stand, the side of lifting frame is articulated swing arm, stop block is movably arranged in the side of swing arm, accurate control stop block displacement by second driving motor cooperation second screw rod, to accurately adjust the opening angle of swing arm, ensure the group precision of cross bracing pipe and main rod, the manufacturing quality of ladder is greatly improved, strong adaptability, adjustable swing arm structure is used, by changing swing arm angle can be adapted to diameter range different specifications cross bracing pipe, the vertical adjusting range of lifting frame is big, satisfy the group demand of different height cross bracing pipe, realize one machine multiuse.

Description

Technical Field

[0001] This utility model relates to the field of ladder assembly production technology, and in particular to a welding device for steel pipe pole ladder assemblies. Background Technology

[0002] As a crucial support structure for power transmission lines, the safety and reliability of the ladders on steel pipe poles are of paramount importance. During the ladder manufacturing process, multiple cross braces need to be precisely assembled and welded to the main pole.

[0003] A search revealed a prior art welding fixture for large-diameter, ultra-long steel pipe assembly (publication number: CN216151620U), comprising a bottom support frame and an upper ladder. The upper ladder is arch-shaped and located at the joint of the steel pipes, spanning across the jointed steel pipes. It has evenly distributed transverse ladder sections, on which scaffold boards are fixed. The bottom support frame has transverse steel beams, on which symmetrical support columns located on both sides of the steel pipes are arranged. At the top of the support columns, there is an arc-shaped support plate that matches the steel pipes. A tie rod is provided between the top inner side of the support columns and the transverse steel beams.

[0004] First, its fixed support structure cannot adapt to the assembly requirements of steel pipe poles of different diameters; second, height adjustment is difficult, and it cannot meet the welding requirements of cross bracing tubes at different positions; third, assembly accuracy depends on the operator's experience, and quality stability is difficult to guarantee. Low assembly accuracy affects the overall quality and safety of the ladder; it has poor adaptability and cannot be quickly adjusted to adapt to steel pipe poles of different specifications; it has low work efficiency, requires the cooperation of multiple operators, and has high labor intensity.

[0005] Therefore, we propose a welding device for steel pipe pole climbing ladder assembly. Utility Model Content

[0006] The present invention mainly addresses the aforementioned technical problems of low precision, poor adaptability, and low efficiency by providing a steel pipe pole climbing ladder assembly welding device.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a steel pipe pole climbing ladder assembly welding device, comprising: The base has a group of columns fixedly installed on its top, and round tubes for limiting accessories are provided between the columns. An adjustment structure is provided on one side of the column to adjust the position of the circular tube. The adjustment structure includes a lifting frame, a swing arm, and a stop block. The lifting frame is movably disposed on one side of the column and can move vertically along the column. The swing arm is hinged to one side of the lifting frame. The stop block is movably disposed on one side of the swing arm. Two swing arms are provided between two columns in the same group, and the circular tube is lifted and limited by the two swing arms.

[0008] In a preferred embodiment of this utility model, the adjustment structure further includes a second drive motor, a second lead screw, and a guide rod. The second drive motor is fixedly installed on one side of the lifting frame. The second lead screw and the guide rod are located between two columns in the same group. The swing arm has a through slot for avoiding the second lead screw and the guide rod. The second lead screw is connected to the output shaft of the second drive motor. The second lead screw can drive the stop block to slide radially along the guide rod.

[0009] In a preferred embodiment of this utility model, the second drive motor is fixedly mounted on the side wall of the lifting frame by a bracket, the second lead screw is connected to the output shaft of the second drive motor by a coupling, and the second lead screw is threadedly connected to two stop blocks.

[0010] In a preferred embodiment of this utility model, the guide rod is fixedly installed with the lifting frame, and the stop block is slidably connected to the guide rod.

[0011] In a preferred embodiment of this utility model, the lifting frame is a frame with a U-shaped cross-section, and the stop block is a triangular block with its inclined surface fitting against one side of the swing arm.

[0012] In a preferred embodiment of the present invention, the adjustment structure further includes a first drive motor, a first lead screw, and a slider. The first lead screw is connected to the output shaft of the first drive motor, the first lead screw is threadedly connected to the slider, the lifting frame is fixedly connected to the slider, and the slider is slidably connected to the column.

[0013] In a preferred embodiment of this utility model, the side wall of the column is provided with a vertical groove adapted to the slider, the slider is slidably disposed in the vertical groove, and the side wall of the column is provided with a channel for the slider to pass through, the slider passes through the channel and is fixedly installed with the side wall of the lifting frame.

[0014] This utility model provides a welding device for steel pipe pole climbing ladder assembly. It has the following beneficial effects: 1. This steel pipe pole climbing ladder assembly and welding device can precisely control the displacement of the stop block through a second drive motor and a second lead screw, thereby precisely adjusting the opening angle of the swing arm to ensure the assembly accuracy of the cross brace tube and the main pole. This significantly improves the manufacturing quality of the climbing ladder, has strong adaptability, adopts an adjustable swing arm structure, and can adapt to cross brace tubes of different diameters by changing the swing arm angle. The vertical adjustment range of the lifting frame is large, meeting the assembly requirements of cross brace tubes of different heights, and realizing multi-purpose functionality.

[0015] 2. This steel pipe pole climbing ladder assembly and welding device replaces manual adjustment with electric adjustment, shortening the assembly time and improving efficiency. A single operator can complete the entire assembly work, significantly reducing labor costs. The triangular stop block and the inclined surface of the swing arm ensure the uniform distribution of clamping force. Even if thermal stress is generated during the welding process, the cross brace tube can be kept stably positioned, effectively preventing welding deformation.

[0016] 3. This steel pipe pole climbing ladder assembly welding device allows all adjustment operations to be completed on the ground, avoiding the safety risks of operators climbing. The electrical control system is equipped with overload protection function, which automatically stops operation when the load exceeds the set value, ensuring the safe use of the equipment. Attached Figure Description

[0017] Figure 1 This is a perspective view of the entire utility model; Figure 2 This is one of the three-dimensional views of the adjustment structure of this utility model; Figure 3 This is one of the three-dimensional views of the adjustment structure of this utility model; Figure 4 This is a perspective view of the installation of the stop block and swing arm with the lifting frame of this utility model; Figure 5 This is a schematic diagram of the cooperation between the stop block and the swing arm of this utility model.

[0018] Legend: 10. Base; 11. Column; 20. Lifting frame; 21. First drive motor; 22. First lead screw; 23. Slider; 30. Swing arm; 31. Stop block; 32. Second drive motor; 33. Second lead screw; 34. Guide rod. Detailed Implementation

[0019] A steel pipe pole ladder assembly welding device, such as Figure 1 As shown, it includes: The base 10 has a group of columns 11 fixedly installed on its top, and round tubes for limiting accessories are provided between the columns 11. like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the adjustment structure is set on one side of the column 11 to adjust the position of the circular tube. The adjustment structure includes a lifting frame 20, a swing arm 30, and a stop block 31. The lifting frame 20 is movably set on one side of the column 11 and can move vertically along the column 11. The swing arm 30 is hinged to one side of the lifting frame 20, and the stop block 31 is movably set on one side of the swing arm 30. Two swing arms 30 are set between the two columns 11 in the same group. The circular tube is lifted and limited by the two swing arms 30. The adjustment structure also includes a second drive motor 32, a second lead screw 33, and a guide rod 34. The second drive motor 32 is fixedly installed on one side of the lifting frame 20. The lead screw 33 and guide rod 34 are located between two columns 11 in the same group. The swing arm 30 has a slot through which the second lead screw 33 and guide rod 34 are passed. The second lead screw 33 is connected to the output shaft of the second drive motor 32. The second lead screw 33 can drive the stop block 31 to slide radially along the guide rod 34. The second drive motor 32 is fixedly installed on the side wall of the lifting frame 20 by a bracket. The second lead screw 33 is connected to the output shaft of the second drive motor 32 by a coupling. The second lead screw 33 is threadedly connected to the two stop blocks 31. The guide rod 34 is fixedly installed on the lifting frame 20. The stop block 31 is slidably connected to the guide rod 34. In this solution, the second drive motor 32 is connected to the controller and encoder to form a closed-loop control. The second drive motor 32 drives the second lead screw 33 to rotate. The second lead screw 33 moves two stops 31 along the guide rod 34, causing the two stops 31 to move closer or further apart. The stops 31 push the corresponding swing arms 30 to swing. The two swing arms 30, which are arranged in a figure-eight pattern, can lift and clamp the round tube. The stair accessories to be assembled can be placed on the round tube for positioning and can be welded manually. The swingable swing arms 30 can adjust the spacing to facilitate the limiting and fixing of round tubes of different diameters to meet the limiting of stair accessories of various specifications. In addition, the swing of the two swing arms 30 can adjust the height of the round tube to a certain extent, so that the height of the stair accessories can be adjusted and fixed during assembly.

[0020] like Figure 3 As shown, the lifting frame 20 is a frame with a U-shaped cross section, the stop block 31 is a triangular block, the inclined surface of the stop block 31 is in contact with one side of the swing arm 30, the adjustment structure also includes a first drive motor 21, a first lead screw 22 and a slider 23, the first lead screw 22 is connected to the output shaft of the first drive motor 21, the first lead screw 22 is threadedly connected to the slider 23, the lifting frame 20 is fixedly connected to the slider 23, the slider 23 is slidably connected to the column 11, the side wall of the column 11 is provided with a vertical groove adapted to the slider 23, the slider 23 is slidably disposed in the vertical groove, the side wall of the column 11 is provided with a channel for the slider 23 to pass through, the slider 23 passes through the channel and is fixedly installed with the side wall of the lifting frame 20; In this solution, in order to raise and lower the lifting frame 20 to adjust the height of the workpiece assembly, the slider 23 is connected to the controller and the encoder. The slider 23 drives the first lead screw 22 to rotate. The first lead screw 22 moves the slider 23 to slide in the vertical groove of the column 11, thereby raising and lowering the lifting frame 20 as a whole. The height of the round tube on the lifting frame 20 and the workpiece can be adjusted.

[0021] It should be noted that the same adjustment structure is set between each set of columns 11. The lifting frame 20 and the swing arm 30 between the two sets of columns 11 are fixed by the connecting rod to maintain synchronous movement. That is, the two lifting frames 20 keep rising and falling synchronously, and the two swing arms 30 on the side closer to the lifting frame 20 keep moving synchronously.

[0022] The working principle of this utility model is as follows: Based on the specifications of the ladder to be assembled, the target height of the lifting frame 20 and the target opening angle of the swing arm 30 are set through the control system. The system automatically calculates and stores the positioning parameters of each set of cross bracing tubes.

[0023] Height adjustment stage: The first drive motor 21 starts, driving the slider 23 via the first lead screw 22 to move the lifting frame 20 to the preset height. The encoder provides real-time position feedback to ensure positioning accuracy. The entire process can be completed within 30 seconds, more than 5 times faster than manual adjustment.

[0024] Radial adjustment stage: The second drive motor 32 starts and drives the two stops 31 to move along the guide rod 34 via the second lead screw 33. The inclined surface of the stop 31 contacts the swing arm 30, pushing the swing arm 30 to rotate around the hinge point, adjusting the distance between the two swing arms 30 to accommodate cross bracing tubes of different diameters.

[0025] Assembly and positioning stage: The cross brace tube is placed on the support point formed by the two swing arms 30. Automatic centering is achieved through the V-shaped structure of the swing arms 30. The relative position of the cross brace tube and the main steel pipe is precisely controlled by adjusting the angle of the swing arms 30 to ensure that the assembly gap meets the welding requirements.

[0026] Welding operation stage: After the assembly and positioning are completed, the operator performs welding operations. Since the swing arm 30 provides stable support and the stop block 31 has a self-locking function, it can still maintain a stable position under the action of welding heat input, effectively preventing welding deformation.

[0027] Completed unloading stage: After welding is completed, the second drive motor 32 reverses, the drive block 31 retracts, and the swing arm 30 automatically opens under the action of gravity, making it easy to take out the finished product. The whole process realizes semi-automatic operation, which greatly reduces labor intensity.

[0028] Based on the above working principle, this utility model achieves precise and efficient welding of steel pipe pole ladders, effectively solving the problems of low precision, poor efficiency, and high labor intensity in traditional assembly methods. It is particularly suitable for the mass production of steel pipe pole ladders in power facility construction. The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A welding device for steel pipe pole climbing ladder assembly, characterized in that, include: The base (10) has a group of columns (11) fixedly installed on its top, and round tubes for limiting accessories are provided between the columns (11). An adjustment structure is set on one side of the column (11) to adjust the position of the round tube. The adjustment structure includes a lifting frame (20), a swing arm (30) and a stop block (31). The lifting frame (20) is movably set on one side of the column (11) and can move vertically along the column (11). The swing arm (30) is hinged to one side of the lifting frame (20). The stop block (31) is movably set on one side of the swing arm (30). Two swing arms (30) are set between the two columns (11) in the same group. The round tube is lifted and limited by the two swing arms (30).

2. The steel pipe pole climbing ladder assembly welding device according to claim 1, characterized in that: The adjustment structure also includes a second drive motor (32), a second lead screw (33) and a guide rod (34). The second drive motor (32) is fixedly installed on one side of the lifting frame (20). The second lead screw (33) and the guide rod (34) are located between two columns (11) in the same group. The swing arm (30) has a slot through which the second lead screw (33) and the guide rod (34) are provided. The second lead screw (33) is connected to the output shaft of the second drive motor (32). The second lead screw (33) can drive the stop block (31) to slide radially along the guide rod (34).

3. The steel pipe pole climbing ladder assembly welding device according to claim 2, characterized in that: The second drive motor (32) is fixedly mounted on the side wall of the lifting frame (20) by a bracket. The second lead screw (33) is connected to the output shaft of the second drive motor (32) by a coupling. The second lead screw (33) is threadedly connected to two stop blocks (31).

4. The steel pipe pole climbing ladder assembly welding device according to claim 2, characterized in that: The guide rod (34) is fixedly installed with the lifting frame (20), and the stop block (31) is slidably connected with the guide rod (34).

5. The steel pipe pole climbing ladder assembly welding device according to claim 1, characterized in that: The lifting frame (20) is a frame with a U-shaped cross section, and the stop block (31) is a triangular block. The inclined surface of the stop block (31) is in contact with one side of the swing arm (30).

6. The steel pipe pole climbing ladder assembly welding device according to claim 5, characterized in that: The adjustment structure also includes a first drive motor (21), a first lead screw (22) and a slider (23). The first lead screw (22) is connected to the output shaft of the first drive motor (21). The first lead screw (22) is threadedly connected to the slider (23). The lifting frame (20) is fixedly connected to the slider (23). The slider (23) is slidably connected to the column (11).

7. The steel pipe pole climbing ladder assembly welding device according to claim 6, characterized in that: The side wall of the column (11) is provided with a vertical groove that is compatible with the slider (23). The slider (23) is slidably disposed in the vertical groove. The side wall of the column (11) is provided with a channel for the slider (23) to pass through. The slider (23) passes through the channel and is fixedly installed on the side wall of the lifting frame (20).

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