Tower footing base welding device and method

Abstract

The application discloses a tower foot base welding device and method, and relates to the technical field of welding.The device comprises a turnover frame, a rotating table, a clamping seat, a machine welding arm, a clamping lock assembly and a stabilizing assembly.The clamping lock assembly is clamped and fixed on both sides of the main support plate, and the stabilizing assembly synchronously clamps the opposite side support plate during the clamping process of the clamping lock assembly to fix the angle of the side support plate during welding.The application first clamps and fixes the main support plate by the clamping lock assembly, and then the stabilizing assembly follows to complete the posture constraint of the side support plate, thereby solving the problem that the side support plate is prone to slight displacement or angle deflection under the influence of thermal stress and thermal expansion, and the traditional clamp cannot correct and constrain in real time.The scheme synchronously completes the positioning of the main support plate and the stabilization of the side support plate, is simple to operate, can effectively ensure the consistency of the welding assembly gap and the geometric precision of the cross support structure, and further improves the welding quality and overall stress performance of the tower foot base.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically to a welding device and method for tower base. Background Technology

[0002] Tower base is an important foundational connecting component in tower structures such as power transmission towers, communication towers, and wind power towers. It typically includes a base plate, a main support plate, and side support plates on both sides of the main support plate. The support plates work together to form a reinforced support structure to improve the overall load-bearing capacity and structural stability of the tower base.

[0003] Currently, in the manufacturing process of tower base plates, the main support plate is typically positioned on the base plate first and pre-fixed by spot welding. Then, side support plates are installed on both sides of the main support plate, and initially connected by spot welding, forming a cross-shaped support structure between the main support plate and the side support plates. After pre-assembly, robotic welding equipment is used to continuously weld the connecting parts to improve welding efficiency and weld quality.

[0004] Due to the large overall size and numerous weld seams of some tower bases, the pre-assembled tower bases typically need to be mounted on a rotatable clamping seat to meet the requirements of automated robotic welding. The clamping seat rotates the workpiece, enabling the welding robot to continuously weld weld seams at different locations. In the actual welding process, the connection between the main support plate and the side support plate is only fixed by initial spot welding, resulting in relatively limited connection rigidity. Furthermore, the localized heat input generated by robotic welding causes thermal expansion and contraction in the welding area, and the welding stress generated during the welding process continues to act on the support plate structure.

[0005] Under the combined influence of the above factors, the side support plate is prone to slight displacement or angular deflection relative to the main support plate, especially in the early stages of welding. As the weld gradually extends, the side support plate may locally exhibit an outward opening or inward tilting tendency. Since such displacements are usually small, traditional clamping mechanisms, mainly used to fix the base plate or the entire workpiece, cannot constrain and correct the posture changes of the side support plate in real time. Therefore, the actual position of the side support plate is prone to deviating from the preset position during welding. When the side support plate tilts slightly, it not only affects the consistency of the assembly gap of subsequent welds, leading to a decrease in weld formation quality, but may also reduce the geometric accuracy of the cross support structure, thereby affecting the overall load-bearing performance of the tower base.

[0006] Therefore, a welding device and method for tower foot base are proposed. Summary of the Invention

[0007] The purpose of this invention is to provide a welding device and method for tower bases, in order to solve the problem in the prior art that the side support plate is prone to slight displacement or angular deflection due to heat input and welding stress during the welding process, and the traditional clamping mechanism cannot constrain and correct it in real time, resulting in a decrease in weld formation quality and a reduction in the geometric accuracy of the cross support structure.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A tower base welding device includes a tilting frame, a rotating table, a clamping seat, a machine welding arm, a clamping and locking assembly, and a stabilizing assembly. The rotating table is located at the center of the tilting frame. The clamping seat is fixedly connected to the rotating table, and the tower base is fixed to the clamping seat. The machine welding arm is located next to the tilting frame and fixedly installed on the ground. The clamping and locking assembly clamps and fixes both sides of the main support plate. The stabilizing assembly clamps the side support plates simultaneously during the clamping and locking process, and the stabilizing assembly is used to fix the angle of the side support plates during the welding process.

[0009] Preferably, the clamping assembly includes a reference block, a sliding rail, clamping legs, an inclined block, a sliding sleeve, a driving block, and a driving component. In use, the reference block is positioned above the intersection of the main support plate and the side support plate. The sliding rail is fixedly connected to the four corners at the bottom of the reference block. The clamping legs are slidably connected to the sliding rail. The inclined block is fixedly connected to the outside of the clamping legs. The sliding sleeve is slidably connected to the reference block. The driving block is fixedly connected to the bottom of the sliding sleeve. The number of driving blocks is the same as the number of clamping legs. The driving block is slidably positioned with the inclined block. The driving component is used to drive the sliding sleeve to move closer to or away from the reference block.

[0010] Preferably, during use, the clamping legs are located at the four right angles formed by the intersection of the main support plate and the side support plate, and the sliding trajectory of the clamping legs is set so that two sets on the same side slide simultaneously towards the main support plate.

[0011] Preferably, the sliding sleeve is further provided with a moving groove, which is respectively opened in the center of the four sides of the sliding sleeve, and the width of each set of moving grooves is greater than or equal to the distance between the two sets of sliding rails below it.

[0012] Preferably, the driving component includes a threaded column, a top cover, a support ring seat, a worm gear, a drive motor, a support frame, and a worm; the threaded column is fixedly connected to the reference block, the top cover is fixedly connected to the top of the sliding sleeve, the support ring seat is fixedly connected to the center of the top cover, the worm gear is rotatably connected to the support ring seat, the threaded column passes through the top cover and the worm gear, the worm gear is threadedly connected to the threaded column, the drive motor and the support frame are both fixedly connected to the top cover, the worm is rotatably connected to the support frame, and one end of the worm is fixedly connected to the output shaft of the drive motor.

[0013] Preferably, a clamping pad is fixedly connected to the side of the clamping leg that contacts the main support plate, and the clamping pad is made of rubber.

[0014] Preferably, the stabilizing component includes a stabilizing clamp, an inclined push block, a crossbar, and a push rod; the stabilizing clamp is slidably connected to the support leg, the stabilizing clamp is slidably disposed along the vertical direction of the side support plate, the inclined push block is fixedly connected to the outer side of the stabilizing clamp, there are two sets of crossbars, and the crossbar is slidably connected to the sliding sleeve near the upper position, the push rod is fixedly connected to both ends of the crossbar, and the push rod is slidably connected to the inclined push block.

[0015] Preferably, an extension plate is fixedly connected to the sliding connection between the sliding sleeve and the crossbar, and the extension plate increases the contact area between the top of the crossbar and the sliding sleeve.

[0016] Preferably, a contact pad is fixedly connected to the side of the stabilizing clamp that contacts the side support plate. The contact pad is made of rubber and has a harder hardness than the clamping pad.

[0017] A method for welding tower bases includes the following steps: S1. Spot weld the main support plate to the top of the base plate, and spot weld the two sets of side support plates to both sides of the main support plate to form a preliminary assembly structure. S2. Use the clamping seat to fix the pre-assembled tower base to the top of the rotating platform; S3. Control the clamping and locking assembly to move the clamping legs closer to both sides of the main support plate and clamp the main support plate. At the same time, drive the stabilizing assembly to move synchronously to clamp and position the side support plates on both sides. S4. Start the machine welding arm to automatically weld the welds between the main support plate and the bottom plate, as well as between the main support plate and the side support plate. S5. During the welding process, the rotating table is adjusted according to the position of the weld seam so that the machine welding arm is always in the best welding posture. S6. After welding is completed, release the clamping and stabilizing components and remove the welded tower base.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes a clamping assembly and a stabilizing assembly. The clamping assembly first locks the main support plate to a reference position, and then the stabilizing assembly follows the clamping assembly to synchronously clamp and position the side support plate, thus completing the positioning of the main support plate and the posture constraint of the side support plate in one step. During welding, the stabilizing assembly effectively limits the outward opening or inward tilting tendency of the side support plate caused by welding heat input and stress, ensuring that the side support plate always remains at a preset angle. This guarantees the consistency of the weld assembly gap, improves the weld formation quality and the geometric accuracy of the cross support structure, and enhances the overall load-bearing performance of the tower base. Furthermore, because the contact pad is made of high-hardness rubber material, its hardness is greater than that of the clamping pad. During clamping, the clamping pad will first undergo compression deformation, while the contact pad can provide stronger support and constraint force to the side support plate, thereby improving the posture stability of the side support plate.

[0019] 2. In the stabilizing assembly of this invention, the crossbar and the sliding sleeve are slidably connected, and the stabilizing clamping block is driven to move by the cooperation of the push rod and the inclined push block. When there is a positional deviation between the side support plate and the main support plate, the crossbar can automatically slide to compensate, so that the stabilizing clamping blocks on both sides can reliably abut against the surface of the side support plate and adaptively adjust the clamping position. There is no need to repeatedly and precisely align the workpiece, which enhances the adaptability of the device to pre-assembly errors and ensures the reliability and stability of clamping.

[0020] 3. The clamping and stabilizing components of this invention share a common driving component for linkage. A drive motor drives the worm gear and threaded rod transmission, requiring only one drive to simultaneously complete the clamping of the main support plate and the stabilizing clamping of the side support plate. The operation is simple and effectively shortens the welding preparation time. Simultaneously, the worm gear structure has excellent self-locking performance, maintaining a stable clamping force even after the motor stops working, preventing welding vibration from causing loosening and ensuring the continuity and safety of the welding process. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the overall appearance of the present invention; Figure 2 This is an enlarged structural diagram of the clamping assembly of the present invention; Figure 3 This is an enlarged schematic diagram of the structure near the main support plate of the present invention; Figure 4 This is a three-dimensional structural diagram of the clamping and locking assembly of the present invention; Figure 5 This is a schematic diagram of the structure near the reference block of the present invention; Figure 6 This is a schematic diagram of the drive component structure of the present invention; Figure 7 This is a three-dimensional structural diagram of the stabilizing component of the present invention; Figure 8This is a cross-sectional view of the clamping leg of the present invention.

[0022] In the diagram: 1. Tilting frame; 2. Rotating table; 3. Clamping seat; 4. Machine welding arm; 5. Clamping and locking assembly; 51. Reference block; 52. Sliding rail seat; 53. Clamping leg; 531. Clamping pad; 54. Inclined block; 55. Sliding sleeve; 551. Moving groove; 56. Drive block; 57. Drive component; 571. Threaded column; 572. Top cover; 573. Support ring seat; 574. Worm gear; 575. Drive motor; 576. Support frame; 577. Worm; 6. Stabilizing assembly; 61. Stabilizing clamping block; 611. Contact pad; 62. Inclined push block; 63. Crossbar; 631. Extension plate; 64. Push rod; 7. Base plate; 71. Main support plate; 72. Side support plate. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 8 This invention provides a welding device and method for tower base, the technical solution of which is as follows: Reference Figure 1 and Figure 2 A tower base welding device includes a tilting frame 1, a rotating table 2, a clamping seat 3, a machine welding arm 4, a clamping and locking assembly 5, and a stabilizing assembly 6.

[0025] The tilting frame 1 serves as the main support for the entire welding device. Its left and right sides are rotatably connected to a rotating mechanism mounted on the ground, allowing the tilting frame 1 to rotate 360 ​​degrees relative to the ground. The rotating mechanism can be a slewing bearing structure, a tilting shaft structure, or a servo tilting mechanism; no specific limitation is made here. By tilting the frame 1, the orientation of the tower base installed inside it can be changed, ensuring that welds in different positions are always in a suitable welding posture.

[0026] The rotating table 2 is located in the middle of the tilting frame 1 and is rotatably connected to the tilting frame 1, allowing the rotating table 2 to rotate relative to the tilting frame 1. The clamping seat 3 is fixedly installed on the top of the rotating table 2, and the base plate 7 of the tower leg base to be welded is fixedly installed on the clamping seat 3. Therefore, during the welding process, the tower leg base can not only rotate as a whole with the tilting frame 1, but also rotate circumferentially with the rotating table 2, thus forming a dual-degree-of-freedom adjustment structure. The machine welding arm 4 is fixedly installed on the ground on one side of the tilting frame 1. The workpiece posture is adjusted by the tilting frame 1 and the rotating table 2, ensuring that the machine welding arm 4 can always complete the welding of each weld at the optimal welding angle.

[0027] The tower base mainly includes a base plate 7, a main support plate 71, and two sets of side support plates 72. The main support plate 71 is vertically fixed to the top of the base plate 7, and the two sets of side support plates 72 are fixed to both sides of the main support plate 71, forming a cross-shaped reinforcement structure with the main support plate 71. In actual production, the main support plate 71 and the side support plates 72 are usually pre-fixed only by spot welding. Therefore, during continuous robotic welding, the heat input of the weld seam can easily cause the side support plates 72 to deflect slightly. To avoid this problem, this embodiment uses a clamping assembly 5 to first lock the main support plate 71 to a reference position, and then uses a stabilizing assembly 6 to constrain the posture of the side support plates 72, thereby ensuring that the plates maintain accurate assembly relationships during the welding process.

[0028] Reference Figures 3 to 5 The clamping assembly 5 includes a reference block 51, a sliding rail 52, a clamping leg 53, an inclined block 54, a sliding sleeve 55, a drive block 56, and a drive component 57.

[0029] The reference block 51 is located above the intersection of the main support plate 71 and the side support plate 72, and serves as the mounting base for the clamping assembly 5. Sliding rail seats 52 are fixedly installed at the four corners of the bottom of the reference block 51, and each sliding rail seat 52 is slidably connected to the corresponding clamping leg 53, allowing the clamping leg 53 to move linearly along a preset trajectory.

[0030] Four sets of clamping legs 53 are located within the four angled areas formed by the main support plate 71 and the side support plate 72, and the two sets of clamping legs 53 on the same side are slidably arranged towards the main support plate 71. An inclined block 54 is fixedly connected to the outside of the clamping leg 53, and a sliding sleeve 55 is sleeved on the outside of the reference block 51 and can slide up and down along the reference block 51. Four sets of driving blocks 56 are fixedly installed at the bottom of the sliding sleeve 55, and each driving block 56 forms an inclined surface transmission engagement with the corresponding inclined block 54.

[0031] When the driving component 57 drives the sliding sleeve 55 to move downward, the driving block 56 moves downward synchronously and slides along the surface of the inclined block 54. Since the driving block 56 and the inclined block 54 form an inclined guide relationship, the longitudinal displacement of the driving block 56 is converted into the lateral displacement of the clamping leg 53, thereby pushing the four sets of clamping legs 53 to move closer to the main support plate 71 at the same time.

[0032] It should be noted that the clamping legs 53 are only used to clamp the main support plate 71 and do not contact the side support plates 72. As the clamping legs 53 gradually move inward, all four sets of clamping legs 53 apply clamping force to the main support plate 71 from both sides, thereby locking the clamping assembly 5 onto the main support plate 71. Since the main support plate 71 is the central support component of the entire tower base, the clamping assembly 5, located behind the main support plate 71, can provide a reliable reference for the stable positioning of the subsequent side support plates 72.

[0033] Reference Figure 4 The outer periphery of the sliding sleeve 55 is provided with four sets of moving grooves 551, each of which is located at the center of the four sides of the sliding sleeve 55. The width of the moving groove 551 is greater than the distance between the two sets of sliding rail seats 52 at the corresponding positions, so that the sliding sleeve 55 will not interfere with the main support plate 71 or the side support plate 72 during the up and down movement, thereby ensuring that the clamping leg 53 can smoothly complete the clamping action.

[0034] Reference Figure 5 A clamping pad 531 is fixedly installed on the side of the clamping leg 53 that contacts the main support plate 71. The clamping pad 531 is preferably made of high-temperature resistant rubber material, which can improve the friction during the clamping process, prevent the clamping leg 53 from directly pressing on the surface of the main support plate 71 and causing indentations, and also absorb the vibration and impact generated during the welding process, thereby improving the clamping stability.

[0035] Reference Figure 6 The drive component 57 includes a threaded post 571, a top cover 572, a support ring seat 573, a worm gear 574, a drive motor 575, a support frame 576, and a worm 577.

[0036] A threaded post 571 is fixedly installed at the top center of the reference block 51. A top cover 572 is fixedly installed on the top of the sliding sleeve 55. A support ring seat 573 is fixedly installed in the central area of ​​the top cover 572. A worm gear 574 is rotatably installed outside the support ring seat 573. The threaded post 571 passes through the worm gear 574 and forms a threaded connection with it. A drive motor 575 is installed on the top of the top cover 572. The output shaft of the drive motor 575 is fixedly connected to the worm 577, and the worm 577 meshes with the worm gear 574.

[0037] During operation, the drive motor 575 drives the worm gear 577 to rotate, which in turn drives the worm wheel 574 to rotate. Since the worm wheel 574 is threadedly engaged with the threaded post 571, its rotation drives the top cover 572 and the sliding sleeve 55 to move up and down along the threaded post 571, thus clamping and releasing the gripper legs 53. The worm wheel 574 and worm gear 577 structure also possesses excellent self-locking properties, ensuring that even after clamping is complete, the gripper legs 53 maintain a stable clamping state even if the drive motor 575 stops operating.

[0038] Reference Figure 7 and Figure 8 The stabilizing component 6 includes a stabilizing clamp 61, an inclined push block 62, a crossbar 63, and a push rod 64.

[0039] The stabilizing clamps 61 are respectively located on the outer side of the side support plate 72 and can slide in a direction perpendicular to the surface of the side support plate 72. An inclined push block 62 is fixedly connected to the outer side of the stabilizing clamps 61. Two sets of crossbars 63 are provided and are slidably connected to the sliding sleeve 55. Each set of crossbars 63 has a push rod 64 fixedly connected to both ends, and the push rod 64 forms a sliding engagement with the corresponding inclined push block 62.

[0040] Unlike traditional clamping methods, in this embodiment, the stabilizing component 6 does not participate in the positioning process of the main support plate 71, but instead provides a stable clamping for the side support plate 72 while the main support plate 71 is locked.

[0041] As the sliding sleeve 55 moves downward, the clamping leg 53 approaches the main support plate 71 and completes the clamping action. Simultaneously, the crossbar 63 descends and pushes the inclined push block 62 to move via the push rod 64. The inclined push block 62 will drive the stabilizing clamping block 61 to move towards the side support plate 72. Since the crossbar 63 and the sliding sleeve 55 are in a sliding connection relationship, the crossbar 63 can automatically perform position compensation adjustment according to the actual position of the side support plate 72.

[0042] Because the crossbar 63 can generate a certain range of sliding compensation, the two sets of stabilizing clamps 61 can automatically find the position that matches the corresponding side support plate 72. Even if the clamping assembly 5 is initially clamped on the main support plate 71 and the side support plate 72 is not centered between the clamping legs 53 where the stabilizing clamps 61 are located, when the stabilizing clamps 61 move to both sides of the side support plate 72, the stabilizing clamps 61 on both sides will abut against the outer surface of the side support plate 72 respectively, and clamp the side support plate 72 between the corresponding stabilizing clamps 61 (specifically, when the clamping assembly 5 is clamped on the main support plate 71, but the side support plate 72 is not centered between the clamping legs 53 where the stabilizing clamps 61 are located, the stabilizing clamps 61 on both sides of the side support plate 72 will extend beyond the clamping legs 53 by a greater distance than the other side).

[0043] Furthermore, an extension plate 631 is fixedly installed at the connection position between the crossbar 63 and the sliding sleeve 55. The extension plate 631 increases the contact area between the crossbar 63 and the sliding sleeve 55, allowing the sliding sleeve 55 to transmit thrust to the crossbar 63 more evenly when it moves downward, thereby improving the operational stability of the stabilizing component 6.

[0044] Reference Figure 7 A contact pad 611 is fixedly installed on the side of the stabilizing clamp 61 that contacts the side support plate 72. The contact pad 611 is made of high-hardness rubber material, which is harder than the clamping pad 531. During the clamping process, the clamping pad 531 is compressed and deformed first, while the contact pad 611 can provide stronger support and constraint force to the side support plate 72, thereby improving the attitude stability of the side support plate 72.

[0045] A method for welding tower bases includes the following steps: S1. Spot weld the main support plate 71 to the top of the base plate 7, and spot weld the two sets of side support plates 72 to both sides of the main support plate 71 to form a preliminary assembly structure. S2. Use the clamping seat 3 to fix the pre-assembled tower base to the top of the rotating table 2; S3. Control the clamping and locking assembly 5 to move the clamping legs 53 closer to the sides of the main support plate 71 and clamp the main support plate 71. At the same time, drive the stabilizing assembly 6 to move synchronously to clamp and position the side support plates 72 on both sides. S4. Start the machine welding arm 4 to automatically weld the welds between the main support plate 71 and the bottom plate 7, and between the main support plate 71 and the side support plate 72. S5. During the welding process, the rotating table 2 rotates and adjusts according to the position of the weld seam so that the machine welding arm 4 is always in the best welding posture. S6. After welding is completed, the clamping assembly 5 and the stabilizing assembly 6 are released, and the welded tower base is removed.

[0046] Working principle: When in use, first install the pre-assembled tower base onto the clamping seat 3, and fix the base plate 7 to the top of the clamping seat 3. At this time, the main support plate 71 is located below the clamping and locking assembly 5, and the side support plate 72 is located at the corresponding position of the stabilizing assembly 6.

[0047] The drive motor 575 is then started, and the drive motor 575 drives the worm wheel 574 to rotate via the worm 577. Since the worm wheel 574 is threadedly connected to the threaded post 571, the rotation of the worm wheel 574 can drive the top cover 572 and the sliding sleeve 55 to move downward along the axial direction of the threaded post 571.

[0048] When the sliding sleeve 55 moves downward, the drive block 56 fixed to the bottom of the sliding sleeve 55 descends synchronously and slides along the surface of the corresponding inclined block 54. Since an inclined transmission structure is formed between the drive block 56 and the inclined block 54, the longitudinal displacement of the drive block 56 is converted into the lateral displacement of the clamping legs 53, thereby pushing the four sets of clamping legs 53 to move closer to the main support plate 71 at the same time.

[0049] As the clamping legs 53 continue to move, the four sets of clamping legs 53 apply clamping forces from both sides of the main support plate 71, fixing the clamping assembly 5 onto the main support plate 71. Since the main support plate 71 is the central support component connecting the base plate 7 and the side support plate 72 in the tower foot base, the main structure of the entire clamping assembly 5 will obtain a stable reference after it is clamped onto the main support plate 71.

[0050] As the clamping leg 53 clamps the main support plate 71 inward, the sliding sleeve 55 will simultaneously drive the crossbar 63 to move downward. The crossbar 63, through the push rod 64, simultaneously pushes the inclined push block 62 to move, causing the stabilizing clamping block 61 to gradually move closer to the side support plate 72.

[0051] Because the crossbar 63 and the sliding sleeve 55 form a sliding connection, the crossbar 63 can automatically compensate and adjust according to the actual position of the side support plate 72. When the side support plate 72 is not in the center position of the two sets of stabilizing clamps 61, the two sets of stabilizing clamps 61 can still automatically adjust their extension distance according to the compensation action of the crossbar 63, thereby ensuring that both sets of stabilizing clamps 61 can reliably contact the side support plate 72.

[0052] When the stabilizing clamp 61 contacts the side support plate 72, the two stabilizing clamps 61 abut against the two side surfaces of the side support plate 72 respectively, clamping the side support plate 72 between the corresponding stabilizing clamps 61. At this time, the clamping and locking assembly 5 completes the clamping and fixing of the main support plate 71, and the stabilizing assembly 6 completes the posture constraint of the side support plate 72, thus forming a clamping state in which the positioning of the main support plate 71 and the stabilization of the side support plate 72 are completed simultaneously. Moreover, since the contact pad 611 is made of high-hardness rubber material, its hardness is greater than that of the clamping pad 531. During the clamping process, the clamping pad 531 will first undergo compression deformation, while the contact pad 611 can provide stronger support and constraint force to the side support plate 72, thereby improving the posture stability of the side support plate 72.

[0053] Then, the tilting frame 1 is controlled to tilt around the rotating mechanisms on both sides, while the rotating table 2 is controlled to rotate, so that the welds at different positions of the tower base are adjusted to suitable welding positions in sequence, and the machine welding arm 4 completes the welding operation according to the preset welding trajectory.

[0054] During welding, the clamping assembly 5 continuously maintains the position of the main support plate 71, and the stabilizing assembly 6 continuously restricts the angular deflection of the side support plate 72. When the welding heat input causes the side support plate 72 to tend to open outward or tilt inward, the stabilizing clamp 61 can provide a reverse support force to limit it, thereby ensuring that the side support plate 72 and the main support plate 71 always maintain a preset angle relationship.

[0055] After welding is completed, the drive motor 575 rotates in reverse, the sliding sleeve 55 returns to its original position, the clamping leg 53 and the stabilizing clamp 61 release their clamps simultaneously, and then the welded tower base is removed, thus completing the entire welding process.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tower base welding device, characterized in that: The system includes a tilting frame, a rotating table, a clamping seat, a machine welding arm, a clamping and locking assembly, and a stabilizing assembly. The rotating table is located at the center of the tilting frame. The clamping seat is fixedly connected to the rotating table, and the tower base is fixed to the clamping seat. The machine welding arm is located next to the tilting frame and fixedly installed on the ground. The clamping and locking assembly clamps and fixes the main support plate on both sides. The stabilizing assembly clamps the side support plate simultaneously during the clamping and locking process, and is used to fix the angle of the side support plate during the welding process.

2. The tower foot base welding device according to claim 1, characterized in that: The clamping assembly includes a reference block, a sliding rail, clamping legs, an inclined block, a sliding sleeve, a drive block, and a drive component. In use, the reference block is positioned above the intersection of the main support plate and the side support plate. The sliding rail is fixedly connected to the four corners at the bottom of the reference block. The clamping legs are slidably connected to the sliding rail. The inclined block is fixedly connected to the outside of the clamping legs. The sliding sleeve is slidably connected to the reference block. The drive block is fixedly connected to the bottom of the sliding sleeve. The number of drive blocks is the same as the number of clamping legs. The drive block is slidably positioned with the inclined block. The drive component is used to drive the sliding sleeve to move closer to or away from the reference block.

3. The tower foot base welding device according to claim 2, characterized in that: In use, the clamping legs are located at the four right angles formed by the intersection between the main support plate and the side support plate. The sliding trajectory of the clamping legs is that two sets on the same side slide simultaneously towards the main support plate.

4. The tower foot base welding device according to claim 3, characterized in that: The sliding sleeve is also provided with movable grooves, which are respectively opened in the center of the four sides of the sliding sleeve. The width of each set of movable grooves is greater than or equal to the distance between the two sets of sliding rails below it.

5. The tower foot base welding device according to claim 4, characterized in that: The driving component includes a threaded column, a top cover, a support ring seat, a worm gear, a drive motor, a support frame, and a worm. The threaded column is fixedly connected to the reference block, the top cover is fixedly connected to the top of the sliding sleeve, the support ring seat is fixedly connected to the center of the top cover, the worm gear is rotatably connected to the support ring seat, the threaded column passes through the top cover and the worm gear, the worm gear is threadedly connected to the threaded column, the drive motor and the support frame are both fixedly connected to the top cover, the worm gear is rotatably connected to the support frame, and one end of the worm gear is fixedly connected to the output shaft of the drive motor.

6. The tower foot base welding device according to claim 5, characterized in that: A clamping pad, made of rubber, is also fixedly connected to the side of the clamping leg that contacts the main support plate.

7. The tower base welding device according to claim 6, characterized in that: The stabilizing component includes a stabilizing clamp, a slanted push block, a crossbar, and a push rod; the stabilizing clamp is slidably connected to the outrigger and is slidably disposed along the vertical direction of the side support plate; the slanted push block is fixedly connected to the outer side of the stabilizing clamp; there are two sets of crossbars, and the crossbar is slidably connected to the upper position of the sliding sleeve; the push rod is fixedly connected to both ends of the crossbar and is slidably connected to the slanted push block.

8. The tower foot base welding device according to claim 7, characterized in that: An extension plate is also fixedly connected to the sliding connection between the sliding sleeve and the crossbar, which increases the contact area between the top of the crossbar and the sliding sleeve.

9. A tower foot base welding device according to claim 8, characterized in that: A contact pad is also fixedly connected to the side of the stabilizing clamp that contacts the side support plate. The contact pad is made of rubber and its hardness is greater than that of the clamping pad.

10. A method for welding tower base legs, characterized in that: The tower base welding device according to any one of claims 1 to 9 includes the following steps: S1. Spot weld the main support plate to the top of the base plate, and spot weld the two sets of side support plates to both sides of the main support plate to form a preliminary assembly structure. S2. Use the clamping seat to fix the pre-assembled tower base to the top of the rotating platform; S3. Control the clamping and locking assembly to move the clamping legs closer to both sides of the main support plate and clamp the main support plate. At the same time, drive the stabilizing assembly to move synchronously to clamp and position the side support plates on both sides. S4. Start the machine welding arm to automatically weld the welds between the main support plate and the bottom plate, as well as between the main support plate and the side support plate. S5. During the welding process, the rotating table is adjusted according to the position of the weld seam so that the machine welding arm is always in the best welding posture. S6. After welding is completed, release the clamping and stabilizing components and remove the welded tower base.

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