Weathering steel tower leg welding device

Abstract

The utility model relates to the production field of weathering steel tower, and disclose a kind of weathering steel tower foot welding device, including welding station, the side of welding station is equipped with mechanical arm, welding torch is installed on the mechanical arm, fixed bracket is fixed on the welding station, both sides of the fixed bracket are equipped with movable bracket, the movable bracket is close to or away from the fixed bracket by moving piece, further include two groups of abutting components, it is oppositely arranged on welding station, and each group of abutting components includes two opposite abutting plates, two abutting plates can be close to or away from;Knocking component, it is equipped on mechanical arm, synchronously moves with welding torch, and is used to knock welding area after welding component of welding torch;The utility model is assisted with the cooperation of fixed bracket and movable bracket, and movable bracket can be close to or away from fixed bracket flexibly by moving piece, can adapt to the steel tower foot support demand of different size, ensure that workpiece is stably stressed in welding process bottom.

Description

Technical Field

[0001] This utility model relates to the field of weathering steel tower production, and in particular to a weathering steel tower foot welding device. Background Technology

[0002] Weathering steel is widely used in outdoor steel structures such as power transmission towers, communication towers, and bridges due to its excellent resistance to atmospheric corrosion. As a key load-bearing component of the entire tower structure, the welding quality of the steel tower feet directly affects the safety and durability of the overall structure. Currently, the welding of steel tower feet is mostly carried out manually, semi-automatically, or automatically.

[0003] During welding, workpieces are prone to displacement due to thermal deformation or external forces, leading to inaccurate weld positions and affecting weld quality. Furthermore, residual stress often remains in the weld area after welding; if not addressed promptly, this can cause weld cracks, stress corrosion, and other problems, reducing the structural lifespan. Existing welding equipment typically only has a single welding function, requiring manual or additional equipment for stress relief after welding. This not only increases the number of procedures and labor costs but may also result in ineffective stress relief due to time intervals or improper operation. Utility Model Content

[0004] This utility model proposes a welding device for weathering steel tower legs to solve the problems of existing welding devices, such as workpiece misalignment leading to inaccurate welds, residual stress in the weld area requiring manual or additional equipment processing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding device for weathering steel tower legs, comprising a welding table, a robotic arm mounted on one side of the welding table, a welding torch mounted on the robotic arm, a fixed support strip fixed on the welding table, and movable support strips on both sides of the fixed support strip, the movable support strips being able to move closer to or further away from the fixed support strip via a moving component, and further comprising: Two sets of contact components are placed opposite each other on the welding table, and each set of contact components includes two opposing backing plates, which can be close to or far apart. The striking component, mounted on the robotic arm, moves synchronously with the welding torch and is used to strike the welded area after the welding torch has welded the component.

[0006] Preferably, the abutment assembly further includes a third telescopic rod fixed to the lower end of the side wall of the backrest, and two of the third telescopic rods are connected by a vertical fourth telescopic rod via a support strip.

[0007] Preferably, a second telescopic rod is installed on the side of the movable support bar opposite to the fixed support bar, and the second telescopic rod is fixed to the welding table.

[0008] Preferably, a slider is fixed to the end of the movable support bar, and a groove is provided on the inner side wall of the welding table, with the slider slidingly engaging the groove.

[0009] Preferably, the striking assembly includes a first telescopic rod vertically mounted on the robotic arm, with a striking ball fixed to the bottom end of the first telescopic rod.

[0010] Preferably, the striking assembly includes a motor and a vertical bar. The motor is mounted on the robotic arm via a mounting plate. The output end of the motor is hinged to a connecting rod via a connecting shaft. The end of the connecting rod is connected to a striking rod. A protrusion is connected to the vertical bar, and the striking rod passes through the protrusion.

[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows: (1) By means of the cooperation between the fixed support bar and the movable support bar, the steel tower foot can be stably supported. The movable support bar can be flexibly moved closer to or away from the fixed support bar through the moving part, which can adapt to the support requirements of steel tower feet of different sizes, thereby ensuring that the bottom of the workpiece is stably stressed during the welding process. Furthermore, the spacing between the back plates in the two sets of abutment components can be adjusted by the third telescopic rod. Combined with the vertical lifting function of the fourth telescopic rod, they can closely fit the steel tower feet of different thicknesses and heights from the side, effectively avoiding weld deviation caused by workpiece shaking during welding and significantly improving welding accuracy.

[0012] (2) The hammering component on the robotic arm moves synchronously with the welding torch. After welding, the weld area can be hammered. It can release residual stress through orderly extension and retraction, improve the stress distribution of the weld, reduce the tendency of cracking, and increase the tensile strength of the weld. It does not require manual processing or transfer to other equipment for processing, thus improving efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the welding table, movable support strip, and contact assembly of this utility model; Figure 3 This is a schematic diagram of the structure of the bonding component of this utility model; Figure 4 This is a schematic diagram of the structure of the second embodiment of the striking component of this utility model; In the picture: 1. Robotic arm; 2. Welding torch; 3. Striking assembly; 31. First telescopic rod; 32. Striking ball; 33. Motor; 34. Vertical bar; 35. Connecting rod; 36. Protrusion; 37. Striking rod; 4. Welding table; 5. Movable support bar; 6. Fixed support bar; 7. Second telescopic rod; 8. Slide groove; 9. Abutment assembly; 91. Backing plate; 92. Third telescopic rod; 93. Fourth telescopic rod; 10. Slider. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1: like Figures 1-3 As shown, a welding device for weathering steel tower feet includes a welding table 4. A robotic arm 1 is installed on one side of the welding table 4. The radius of motion of the robotic arm 1 can be set according to the actual welding requirements. The maximum coverage range can meet the welding operations of steel tower feet of different specifications. A welding torch 2 is installed on the robotic arm 1. A fixed support strip 6 is also fixed on the welding table 4. Movable support strips 5 are provided on both sides of the fixed support strip 6. The movable support strips 5 can move closer to or away from the fixed support strip 6 through a moving part. It also includes a striking component 3 and a contact component 9. There are two sets of contact components 9. The two sets of contact components 9 are arranged opposite each other on the welding table 4. Each set of contact components 9 includes two opposite backing plates 91. The two backing plates 91 can move closer to or away from each other. The striking component 3 is set on the robotic arm 1 and moves synchronously with the welding torch 2. It is used to strike the welding area after the welding torch 2 has welded the parts.

[0017] Among them, see Figures 1-3As shown, the abutment assembly 9 also includes a third telescopic rod 92 fixed to the lower end of the side wall of the abutment plate 91. The two third telescopic rods 92 are connected by a vertical fourth telescopic rod 93 via a support strip. Both the third telescopic rods 92 and the fourth telescopic rod 93 are preferably electric telescopic rods. Activating the third telescopic rod 92 can move the abutment plate 91 to flexibly adjust the distance between the two abutment plates 91. For thicker steel tower feet, the third telescopic rod 92 retracts to increase the gap, ensuring that the steel tower feet can be smoothly inserted. For thinner steel tower feet, the third telescopic rod 92 extends to reduce the gap, so that the abutment plate 91 fits tightly against the side wall of the steel tower foot, thereby forming a stable clamping state and effectively avoiding weld deviation caused by workpiece shaking during welding. The vertical telescopic function of the fourth telescopic rod 93 can simultaneously drive the two abutment plates 91 in the same group to rise and fall. During welding operations, when welding is required at different height positions of the steel tower foot, there is no need to disassemble or adjust the entire clamping structure. Simply activate the fourth telescopic rod 93 to position the abutment plate 91 at the required height, reducing auxiliary operation time.

[0018] See Figure 1 and Figure 3 As shown, the movable component includes a second telescopic rod 7 installed on the side of the movable support bar 5 facing away from the fixed support bar 6. The second telescopic rod 7 is an electric telescopic rod and is fixed on the welding table 4. A slider 10 is fixed to the end of the movable support bar 5. A groove 8 is provided on the inner side wall of the welding table 4. The slider 10 slides in the groove 8. When the second telescopic rod 7 is activated, the movable support bar 5 is moved by the second telescopic rod 7. The distance between the movable support bar 5 and the fixed support bar 6 can be flexibly adjusted to meet the support requirements of steel tower feet of various sizes. When the movable support bar 5 moves, the slider 10 slides synchronously in the groove 8. On the one hand, it guides the movement direction of the movable support bar 5 to avoid deviation; on the other hand, it also shares the pressure borne by the movable support bar 5 and enhances the stability of the overall structure.

[0019] See Figure 1 As shown, the striking component 3 includes a first telescopic rod 31 vertically mounted on the robotic arm 1. The first telescopic rod 31 is an electric telescopic rod, and a striking ball 32 is fixed at the bottom end of the first telescopic rod 31. During welding, the first telescopic rod 31 can be controlled by the controller to extend and retract in an orderly manner, so that the striking ball 32 can strike the welding area after welding, release the residual stress generated during welding, improve the stress distribution in the weld area, reduce the tendency of cracks caused by stress concentration, and improve the tensile strength of the weld.

[0020] Example 2: See Figure 4As shown, this embodiment differs from Embodiment 1 in that the striking component 3 includes a motor 33 and a vertical bar 34. The motor 33 is mounted on the robotic arm 1 via a mounting plate. The output end of the motor 33 is hinged to a connecting rod 35 via a connecting shaft. The end of the connecting rod 35 is connected to a striking rod 37. A protrusion 36 is connected to the vertical bar 34, and the striking rod 37 passes through the protrusion 36.

[0021] As described above, during welding, the controller can be activated to control the motor 33, and the output of the motor 33 can drive the connecting rod 35 to move, thereby enabling the hammer rod 37 to extend and retract along the protrusion 36. When extending downward, the hammer rod 37 with a fixed round head can hammer the weld after welding, making the weld pitted to eliminate some stress and change the tensile stress into compressive stress. Secondly, the vibration stress generated by the hammering also relaxes the residual welding stress, further improving the welding strength of the steel tower foot.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A weathering-resistant steel tower foot welding device, comprising a welding table (4), one side of the welding table (4) is provided with a mechanical arm (1), and a welding gun (2) is installed on the mechanical arm (1), characterized in that, The welding table (4) is fixed with a fixed support strip (6), and movable support strips (5) are provided on both sides of the fixed support strip (6). The movable support strips (5) can move closer to or away from the fixed support strip (6) through a moving part. It also includes: Two sets of abutting components (9) are disposed opposite each other on the welding table (4), and each set of abutting components (9) includes two opposing back plates (91), which can be close to or far apart; The striking component (3) is mounted on the robotic arm (1), moves synchronously with the welding torch (2), and is used to strike the welding area after the welding torch (2) welds the component.

2. The weathering steel tower leg welding device according to claim 1, characterized in that: The abutment assembly (9) also includes a third telescopic rod (92) fixed to the lower end of the side wall of the backing plate (91), and the two third telescopic rods (92) are connected together by a vertical fourth telescopic rod (93) through a support strip.

3. The weathering steel tower leg welding device of claim 1, wherein: The movable support bar (5) has a second telescopic rod (7) installed on the side facing away from the fixed support bar (6), and the second telescopic rod (7) is fixed on the welding table (4).

4. The weathering steel tower leg welding apparatus according to claim 3, characterized in that: The movable support bar (5) has a slider (10) fixed at its end, and the inner side wall of the welding table (4) has a groove (8) which slides and engages with the groove (8).

5. The weathering steel tower leg welding apparatus of claim 1, wherein: The striking assembly (3) includes a first telescopic rod (31) mounted vertically on the robotic arm (1), with a striking ball (32) fixed at the bottom end of the first telescopic rod (31).

6. The weathering steel tower leg welding apparatus of claim 1, wherein: The striking assembly (3) includes a motor (33) and a vertical bar (34). The motor (33) is mounted on the robotic arm (1) via a mounting plate. The output end of the motor (33) is hinged to a connecting rod (35) via a connecting shaft. The end of the connecting rod (35) is connected to a striking rod (37). A protrusion (36) is connected to the vertical bar (34), and the striking rod (37) passes through the protrusion (36).

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