A welding device for the base of a power transmission tower

Abstract

The present invention relates to the technical field of welding of the base of a power transmission tower, and specifically relates to a welding device for the base of a power transmission tower, which includes a bidirectional lead screw rotatably connected inside the welding main body, and one end of the bidirectional lead screw is coaxially connected to the output shaft of a driving motor. Two sets of symmetrically arranged moving plates are meshed and connected to the surface of the bidirectional lead screw. A positioning cylinder is arranged between the ends of the two moving plates that are close to each other. A round rod with a circular groove opened at the top is slidably connected inside the positioning cylinder. A short rod is slidably connected inside the round rod, and the short rod is elastically connected to the bottom surface of the circular groove through a connecting spring. Two sets of limiting columns are symmetrically installed on the surface of the short rod. Connecting rods are movably connected to the surfaces of the two sets of limiting columns. A pressing plate is sleeved on the surface of the round rod. Through the cooperation of various components, the present invention enables the connecting plate to be fixed when welded to the base body, and can automatically change the welding position to ensure the welding quality and welding efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of welding of the base of a power transmission tower, and specifically to a welding device for the base of a power transmission tower. Background Art

[0002] In the field of power infrastructure construction, as a key support structure for transmission lines, the stability of the base of a power transmission tower is directly related to the safety performance of the entire tower body. Welding technology is used to firmly connect the various components of the tower base together to ensure the stability and safety of the tower.

[0003] In the welding process of the base of a power transmission tower, in order to ensure a high degree of stability and strength of the base, it is usually necessary to firmly weld multiple connecting plates on its surface. However, in some factory environments with low automation levels, the welding operations of these connecting plates still rely on traditional welding methods; when welding these connecting plates to the base in this traditional way, due to the lack of sufficient fixed support for the connecting plates themselves, they are prone to shaking, which will not only cause deviations in the welding positions, but also affect the welding quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding device for the base of a power transmission tower to solve the problem that in the prior art in factories with low automation levels, when using traditional welding methods, the lack of sufficient fixed support for the connecting plates easily leads to shaking, thereby affecting the welding position and overall quality as mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A welding device for the base of a power transmission tower, including a welding main body, and a bracket is installed on the upper surface of the welding main body. A driving motor is fixedly installed on one side of the welding main body. A bearing plate is provided on the upper surface of the welding main body. The base body to be welded is placed on the upper surface of the bearing plate. Two groups of welding modules are provided on both sides of the bearing plate;

[0006] It further includes a positioning component for fixing the connecting plate to be welded and the base body. The positioning component includes a bidirectional lead screw rotatably connected inside the welding main body, and one end of the bidirectional lead screw is coaxially connected to the output shaft of the driving motor. Two symmetrically arranged moving plates are meshed and connected to the surface of the bidirectional lead screw, and the moving plates are in an L-shaped structure. A positioning cylinder is provided between the mutually approaching ends of the two moving plates. A round rod with a circular groove opened at the top is slidably connected inside the positioning cylinder. A short rod is slidably connected inside the round rod, and the short rod is elastically connected to the bottom surface of the circular groove through a connecting spring. Two groups of limiting columns are symmetrically installed on the surface of the short rod. Both ends of the two groups of limiting columns are movably connected to one side of the two moving plates through connecting rods. A pressing plate is sleeved on the surface of the round rod. A blowing member is provided below the pressing plate.

[0007] Furthermore, the upper end of the positioning cylinder is fixedly connected to the lower surface of the bracket, and the inside of the positioning cylinder is a hollow structure. A vertical groove is penetratingly formed on the surface of the positioning cylinder, and a limiting groove is formed on the inner wall of the positioning cylinder.

[0008] Furthermore, the limiting groove is formed by a combination of a group of annular grooves and a group of grooves with an inverted U-shaped structure communicating with each other, and the annular grooves are formed on the inner wall of the positioning cylinder from shallow to deep in the clockwise direction.

[0009] Furthermore, a cavity is formed in the inner wall of the round rod, and a telescopic rod is fixedly installed on the surface of the round rod. The telescopic rod is arranged inside the limiting groove and is slidably matched with it.

[0010] Furthermore, the limiting column is arranged inside the vertical groove and extends to the outside. The limiting column is slidably matched with the inner wall of the vertical groove.

[0011] Furthermore, a plurality of groups of positioning grooves are equidistantly formed on the lower surface of the pressing plate, and elastic pads are adhered to the inner walls of the positioning grooves.

[0012] Furthermore, the air blowing member includes a vertical shaft and a piston rod fixedly installed on the lower surface of the pressing plate. An acceleration cavity is formed in the vertical shaft, and the acceleration cavity communicates with the cavity. A fitting plate is fixedly installed at the lower end of the vertical shaft. Two groups of nozzles are symmetrically installed on the surface of the fitting plate, and the nozzles communicate with the acceleration cavity. The piston rod is fixedly installed at the lower end of the short rod, and the piston rod is arranged inside the cavity and is in contact with the inner wall thereof.

[0013] Furthermore, it further includes a transposition component for changing the welding position of the base body. The transposition component includes a pulley group rotatably installed on the top surface inside the welding main body. One end of the pulley group is fixedly connected to the lower surface of the bearing plate through a rotating shaft. A turntable is fixedly installed on the lower surface of the other end of the pulley group. A plurality of groups of fitting grooves are equidistantly formed on the surface of the turntable. A driving tooth is arranged on one side of the turntable.

[0014] Furthermore, the driving tooth has a trapezoidal structure, and the driving tooth is elastically telescopically installed on the side of the moving plate close to the turntable.

[0015] The technical solution provided by the present invention has the following beneficial effects compared with the known prior art:

[0016] 1. The present invention is provided with components such as a bidirectional lead screw, a round rod, and a pressing plate that cooperate with each other. When welding the connecting plate, the rotation of the driving motor drives the bidirectional lead screw to rotate synchronously, causing two moving plates engaged with the bidirectional lead screw to move relatively. The connecting rod connected movably drives the short rod and the round rod to move downward, enabling the telescopic rod to enter the deepest part of the annular groove from the inverted U-shaped groove and driving the pressing plate to move downward synchronously to press and fix the connecting plate to be welded on the base, ensuring stability during the welding process.

[0017] 2. The present invention is provided with components such as a vertical shaft, a fitting plate, and a piston rod that cooperate with each other. When welding the fixed connecting plate, the piston rod installed at the lower end of the short rod is driven to move downward by the moving plate and the connecting rod, starting to compress the connecting spring. The piston rod compresses the gas inside the round rod and sprays it out from the inside of the nozzle after being accelerated by the acceleration chamber, acting on the welding path of the welding module to clean the welding area and reducing the impact of welding slag on the welding.

[0018] 3. By providing components such as a pulley group, a mating groove, and a driving tooth that cooperate with each other, when a set of connecting plates is welded and the welding module resets, the cooperation between the driving tooth and the mating groove drives the turntable to rotate, and at the same time drives the pulley group to rotate synchronously, causing the carrier plate on which the base body is placed to rotate, achieving the purpose of automatically changing the welding position and improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings without creative efforts based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic plan view of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the positioning component of the present invention;

[0023] Figure 4 is Figure 3 a schematic cross-sectional view of;

[0024] Figure 5 It is a schematic diagram of the structural cooperation between the positioning component and the air blowing component of the present invention;

[0025] Figure 6 isFigure 4 Schematic enlarged view of the structure at position A in [device name];

[0026] Figure 7 Schematic diagram of the limit groove structure of the present invention;

[0027] Figure 8 Schematic plan view of the limit groove structure of the present invention;

[0028] Figure 9 Schematic diagram of the transposition component structure of the present invention;

[0029] Figure 10 Schematic diagram of the structural cooperation between the mating groove and the driving teeth of the present invention.

[0030] In the figure: 1, welding main body; 2, bearing plate; 3, base body; 4, welding module; 5, positioning component; 501, bidirectional lead screw; 502, moving plate; 503, positioning cylinder; 5031, vertical groove; 5032, limit groove; 504, round rod; 5041, cavity; 5042, telescopic rod; 505, short rod; 506, limit post; 507, connecting rod; 508, pressing plate; 5081, positioning groove; 6, air blowing component; 601, vertical shaft; 602, acceleration cavity; 603, fitting plate; 604, nozzle; 605, piston rod; 7, transposition component; 701, pulley group; 702, turntable; 703, mating groove; 704, driving teeth. Detailed implementation manners

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] The present invention will be further described below with reference to the embodiments.

[0033] Embodiment: A welding device for the base of a power transmission tower, as Figures 1-10As shown in the figure, it includes a welding main body 1, and a bracket is installed on the upper surface of the welding main body 1. A driving motor is fixedly installed on one side of the welding main body 1 to provide a power source for moving the welding connecting plate and changing the welding position; a bearing plate 2 is provided on the upper surface of the welding main body 1. By setting the bearing plate 2, the welding position can be changed; a base body 3 to be welded is placed on the upper surface of the bearing plate 2. Two groups of welding modules 4 are provided on both sides of the bearing plate 2. The welding module 4 is a prior art and is symmetrically arranged to facilitate welding of the contact position between the connecting plate and the base body 3; it should be noted that the two groups of welding modules 4 respectively weld the two sides where the connecting plate contacts the base body 3 to facilitate improving the welding efficiency.

[0034] Combined with the attached Figure 1 - attached Figure 10 , it further includes a positioning component 5 for fixing the connecting plate and the base body 3 to be welded, so that the connecting plate can be fixed during the welding process, without deviation and displacement, ensuring the welding quality; the positioning component 5 includes a bidirectional lead screw 501 rotatably connected inside the welding main body 1, and one end of the bidirectional lead screw 501 is coaxially connected with the output shaft of the driving motor. By setting the bidirectional lead screw 501, it can rotate synchronously under the action of the driving motor to achieve the purpose of kinetic energy transmission; two groups of symmetrically arranged moving plates 502 are meshed and connected to the surface of the bidirectional lead screw 501, and the moving plates 502 are in an L-shaped structure. By setting the two groups of moving plates 502, they can move relatively or move away from each other under the rotation of the moving plates 502; it should be noted that the upper ends of the moving plates 502 are slidably matched with the inner wall of the bracket, and the opposite surfaces of the two groups of moving plates 502 are fixedly connected to the welding module 4, so that when the moving plates 502 move, they can drive the welding module 4 to move synchronously to weld the contact position between the connecting plate and the base body 3.

[0035] Among them, a positioning cylinder 503 is provided between the ends of the moving plates 502 that are close to each other. The upper end of the positioning cylinder 503 is fixedly connected to the lower surface of the bracket, and the inside of the positioning cylinder 503 is a hollow structure. By setting the positioning cylinder 503, it can play a positioning role to facilitate fixing the position of the base body 3 for welding; it should be noted that the positioning cylinder 503 is arranged directly above the bearing plate 2 and the central positions correspond; a vertical groove 5031 is penetrated through the surface of the positioning cylinder 503, and a limiting groove 5032 is opened on the inner wall of the positioning cylinder 503. By opening the vertical groove 5031 and the limiting groove 5032, it can play a limiting and guiding role.

[0036] Among them, combined with the attached Figure 7 and attached Figure 8, the limiting groove 5032 is formed by a combination of a set of annular grooves and a set of grooves with an inverted U-shaped structure connected. The annular grooves are arranged on the inner wall of the positioning cylinder 503 from shallow to deep in the clockwise direction. One end of the groove with the inverted U-shaped structure is smoothly connected to the initial end of the annular groove in the clockwise direction, and the other end is connected to the end of the annular groove, and the depth of the other end is less than the end of the annular groove. A round rod 504 with a round groove opened at the top is slidably connected inside the positioning cylinder 503. By setting the round rod 504, it can slide and cooperate inside the positioning cylinder 503 to achieve the purpose of lifting and lowering.

[0037] Among them, a cavity 5041 is opened on the inner wall of the round rod 504. The upper part of the cavity 5041 is connected to the outside through an air hole and is used to store gas. A telescopic rod 5042 is fixedly installed on the surface of the round rod 504, and the telescopic rod 5042 is arranged inside the limiting groove 5032 and slidably cooperates with it. By setting the telescopic rod 5042, it can cooperate with the limiting groove 5032 to limit the descending round rod 504. A short rod 505 is slidably connected inside the round rod 504, and the short rod 505 is elastically connected to the bottom surface of the round groove through a connecting spring. By setting the short rod 505, it can slide inside the round rod 504 and can be lifted and lowered. It should be noted that by setting the connecting spring, the reaction force generated by its deformation can be used to drive the moving short rod 505 to reset.

[0038] Among them, two groups of limiting columns 506 are symmetrically installed on the surface of the short rod 505. The limiting columns 506 are arranged inside the vertical groove 5031 and extend to the outside. The limiting columns 506 are slidably mated with the inner wall of the vertical groove 5031. By setting the limiting columns 506, the short rod 505 can be limited, and at the same time, the short rod 505 can be driven to lift and lower inside the vertical groove 5031. Two groups of connecting rods 507 are movably connected to the surfaces of the two groups of limiting columns 506, and the ends of the two groups of connecting rods 507 are movably connected to one side of the two groups of moving plates 502. By setting the connecting rods 507, it can play a connecting role, connecting the limiting columns 506 and the moving plates 502, so that when the moving plate 502 moves, the short rod 505 can be driven to lift and lower through the connecting rod 507.

[0039] Among them, a pressing plate 508 is sleeved on the surface of the round rod 504. By setting the pressing plate 508, the connecting plate to be welded on the surface of the base body 3 can be pressed and fixed; a plurality of groups of positioning grooves 5081 are equidistantly arranged on the lower surface of the pressing plate 508, and elastic pads are adhered to the inner walls of the positioning grooves 5081. By providing the positioning grooves 5081, the upper end of the connecting plate to be welded can be placed inside them, so that the position of the connecting plate will not change and it is in the normal welding position; it should be noted that the upper end of the connecting plate is initially arranged inside the positioning groove 5081 but does not contact the top surface of the positioning groove 5081. And by setting the elastic pads, on the one hand, the friction between the connecting plate and the positioning groove 5081 can be reduced, and on the other hand, the elasticity generated by the deformation of the elastic pads makes the connecting plate more stable during the welding process.

[0040] Combined with the attached Figure 1 - attached Figure 10 Below the pressing plate 508, there is a blowing member 6. By setting the blowing member 6, when the welding module 4 welds the connecting plate to the surface of the base body 3, the welding path of the welding module 4 can be cleaned, reducing the influence of the welding slag generated during the welding on the welding; the blowing member 6 includes a vertical shaft 601 fixedly installed on the lower surface of the pressing plate 508. An acceleration chamber 602 is opened inside the vertical shaft 601, and the acceleration chamber 602 is communicated with the cavity 5041. By setting the acceleration chamber 602, the function of gas transmission can be achieved; the lower end of the vertical shaft 601 is fixedly installed with a fitting plate 603, and the lower end of the fitting plate 603 contacts the upper surface of the base body 3, which can press the base body 3.

[0041] Among them, two groups of nozzles 604 are symmetrically installed on the surface of the fitting plate 603, and the nozzles 604 are communicated with the acceleration chamber 602. By setting the nozzles 604, the gas flowing through the inside of the acceleration chamber 602 can be discharged, achieving the effect of cleaning the welding path of the welding module 4 and at the same time achieving the purpose of cleaning the welding slag; it should be noted that a one-way valve is provided inside the nozzle 604, so that the gas can only be blown outwards; and a piston rod 605, the piston rod 605 is fixedly installed at the lower end of the short rod 505, and the piston rod 605 is arranged inside the cavity 5041 and fits with its inner wall. By setting the piston rod 605, it can move synchronously with the short rod 505, achieving the purpose of compressing the gas inside the cavity 5041, so that the gas enters the acceleration chamber 602 and is ejected through the nozzles 604.

[0042] Combined with the attached Figure 1 - attached Figure 10, it further includes a transposition component 7 for changing the welding position of the base body 3, so that after one set of connecting plates is welded, the welding position can be automatically changed to facilitate the welding of other connecting plates and improve the welding efficiency; the transposition component 7 includes a pulley group 701 rotatably installed on the inner top surface of the welding main body 1, and one end of the pulley group 701 is fixedly connected to the lower surface of the bearing plate 2 through a rotating shaft. By setting the pulley group 701, the purpose of kinetic energy transmission can be achieved, which is used to drive the bearing plate 2 to rotate and achieve the purpose of changing the welding position; a turntable 702 is fixedly installed on the lower surface of the other end of the pulley group 701;

[0043] Among them, a plurality of groups of mating grooves 703 are equidistantly arranged on the surface of the turntable 702. By setting the mating grooves 703, it can cooperate with other components, so that the turntable 702 can drive the pulley group 701 to rotate synchronously; a driving tooth 704 is arranged on one side of the turntable 702. The driving tooth 704 has a trapezoidal structure, and the driving tooth 704 is elastically telescopic and installed on the side of the moving plate 502 close to the turntable 702. By setting the driving tooth 704, it can cooperate with the mating groove 703 to drive the turntable 702 to rotate; it should be noted that when the moving plate 502 moves towards the bearing plate 2, the trapezoidal surface of the driving tooth 704 comes into contact with the mating groove 703 and is squeezed to contract into the inside of the moving plate 502. When the moving plate 502 resets, the straight surface of the driving tooth 704 is clamped with the mating groove 703, and then the turntable 702 will be driven to start rotating.

[0044] Specifically, when welding the connecting plates to the surface of the base body 3, the base body 3 is placed on the surface of the bearing plate 2, and then a plurality of groups of connecting plates are sequentially placed according to the positions of the positioning grooves 5081 and the driving motor is started. The rotating driving motor will drive the bidirectional lead screw 501 to rotate synchronously, so that the two moving plates 502 engaged with the bidirectional lead screw 501 will drive the welding module 4 to move relatively, and drive the short rod 505 to move downward through the connecting rod 507 connected movably. The downward moving short rod 505 will drive the round rod 504 to descend synchronously through the action of the connecting spring, and then drive the pressing plate 508 to move downward to press and fix a plurality of groups of connecting plates;

[0045] During the process of the pressing plate 508 fixing the connecting plates, the telescopic rod 5042 will move downward from the other end of the groove of the inverted U-shaped structure and enter the end of the annular groove. When the moving plate 502 drives the welding module 4 to continue moving and start welding, the short rod 505 will start to compress the connecting spring and drive the piston rod 605 to move downward inside the cavity 5041, so that the gas inside the cavity 5041 enters the inside of the acceleration cavity 602 and is accelerated, and the accelerated gas is ejected from the nozzle 604 and acts on the surface of the welding path of the welding module 4 to reduce the influence of the welding slag generated during the welding process;

[0046] After welding is completed, the drive motor rotates in reverse, and the moving plate 502 drives the welding module 4 to move away from the carrier plate 2. During the reset process of the moving plate 502, the straight surface of the driving tooth 704 will be engaged with the mating groove 703, and drive the turntable 702 and the pulley group 701 to rotate. The rotating pulley group 701 will drive the carrier plate 2 to rotate, achieving the purpose of changing the welding position and accelerating the welding efficiency. During the rotation of the carrier plate 2, it will drive the fitting plate 603, the pressing plate 508 and the round rod 504 to rotate synchronously, and the telescopic rod 5042 will also rotate inside the annular groove, gradually moving from the deepest part of the annular groove to the shallowest part. After the final welding is completed, with the reset of the moving plate 502, the telescopic rod 5042 will enter from the initial end of the annular groove to the top of one end of the groove of the inverted U-shaped structure, and at the same time the connecting spring also starts to reset. Then, after the moving plate 502 is reset, the telescopic rod 5042 also returns to its initial state, facilitating the welding of the next group of bases and connecting plates.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A welding device for a power tower base, comprising a welding body (1), wherein a bracket is installed on the upper surface of the welding body (1), and a driving motor is fixedly installed on one side of the welding body (1), characterized in that: A carrying plate (2) is provided on the upper surface of the welding body (1), a base body (3) to be welded is placed on the upper surface of the carrying plate (2), and two groups of welding modules (4) are provided on both sides of the carrying plate (2); The device also comprises a positioning assembly (5) for fixing the connecting plate to be welded and the base body (3), the positioning assembly (5) comprising a bidirectional screw rod (501) rotatably connected to the inside of the welding body (1), one end of the bidirectional screw rod (501) being coaxially connected to the output shaft of the driving motor, two groups of symmetrically arranged moving plates (502) being meshedly connected on the surface of the bidirectional screw rod (501), the moving plates (502) being in an L-shaped structure, and the opposing surfaces of the two groups of moving plates (502) being fixedly connected to the welding module (4), the two groups of moving plates (502) being mutually abutting against each other. A positioning cylinder (503) is provided between the near and near ends of the bracket, the upper end of the positioning cylinder (503) is fixedly connected to the lower surface of the bracket, and the interior of the positioning cylinder (503) is a hollow structure, a vertical groove (5031) is provided through the surface of the positioning cylinder (503), and a limiting groove (5032) is provided on the inner wall of the positioning cylinder (503), and the limiting groove (5032) is formed by a group of annular grooves and a group of grooves of an inverted U-shaped structure connected and combined, and the annular grooves are provided on the inner wall of the positioning cylinder (503) from shallow to deep in a clockwise direction, and one end of the groove of the inverted U-shaped structure is close to The initial end of the annular groove is smoothly connected in a clockwise direction, and the other end is connected to the end of the annular groove, and the depth of the other end is less than that of the end of the annular groove. The interior of the positioning cylinder (503) is slidably connected to a round rod (504) with a round groove on the top. A telescopic rod (5042) is fixedly installed on the surface of the round rod (504), and the telescopic rod (5042) is arranged inside the limiting groove (5032) and slidably cooperates with it. The interior of the round rod (504) is slidably connected to a short rod (505), and the short rod (505) is elastically connected to the bottom surface of the circular groove through a connecting spring. The short rod Two groups of limiting columns (506) are symmetrically installed on the surface of (505), the limiting columns (506) are arranged inside the vertical groove (5031) and extend to the outside, the limiting columns (506) are slidably matched with the inner wall of the vertical groove (5031), the surfaces of the two groups of limiting columns (506) are movably connected with connecting rods (507), and the ends of the two groups of connecting rods (507) are movably connected to one side of the two groups of movable plates (502), the surface of the round rod (504) is sleeved with a pressing plate (508), and a blowing member (6) is provided below the pressing plate (508); The blowing member (6) comprises a vertical shaft (601) fixedly mounted on the lower surface of the pressing plate (508) and a piston rod (605); an acceleration chamber (602) is provided inside the vertical shaft (601), and the acceleration chamber (602) is communicated with the cavity (5041); a bonding plate (603) is fixedly mounted on the lower end of the vertical shaft (601); two groups of nozzles (604) are symmetrically mounted on the surface of the bonding plate (603), and the nozzles (604) are communicated with the acceleration chamber (602); the piston rod (605) is fixedly mounted on the lower end of the short rod (505), and the piston rod (605) is arranged inside the cavity (5041) and is bonded to the inner wall thereof; The welding device also includes a position-changing assembly (7) for changing the welding position of the base body (3), wherein the position-changing assembly (7) includes a belt pulley group (701) rotatably mounted on the top surface of the inner part of the welding body (1), and one end of the belt pulley group (701) is fixedly connected to the lower surface of the carrier plate (2) via a rotating shaft, and a rotating disk (702) is fixedly mounted on the lower surface of the other end of the belt pulley group (701), and a plurality of groups of matching grooves (703) are equidistantly arranged on the surface of the rotating disk (702), and a driving tooth (703) is provided on one side of the rotating disk (702). 4), the driving teeth (704) are of a trapezoidal structure, and the driving teeth (704) are elastically and telescopically mounted on a side of the moving plate (502) close to the rotating disk (702). When the moving plate (502) moves in the direction of the supporting disk (2), the trapezoidal surface of the driving teeth (704) contacts and is squeezed by the matching groove (703), and shrinks toward the inside of the moving plate (502). When the moving plate (502) is reset, the straight surface of the driving teeth (704) is engaged with the matching groove (703), thereby driving the rotating disk (702) to start rotating; When the pressing plate (508) is fixing the connecting plate, the telescopic rod (5042) moves downward from the other end of the groove of the inverted U-shaped structure and enters the end of the annular groove. When the moving plate (502) drives the welding module (4) to continuously move and start welding, the short rod (505) starts to compress the connecting spring and drives the piston rod (605) to move downward inside the cavity (5041). When welding is completed, the driving motor is reversed, and the moving plate (502) drives the welding module (4) to start moving away from the carrier plate (2). During the rotation of the carrier plate (2), the laminating plate (603), the pressing plate (508) and the round rod (504) are driven to rotate synchronously, and the telescopic rod (5042) also rotates inside the annular groove, gradually moving from the deepest part of the annular groove to the shallowest part. After the welding is finally completed, as the moving plate (502) is reset, the telescopic rod (5042) enters from the initial end of the annular groove to the top of one end of the groove of the inverted U-shaped structure, and the connecting spring also starts to reset.

2. The welding device for a power tower base according to claim 1, characterized in that: The inner wall of the round rod (504) is provided with a cavity (5041).

3. The welding device for a power tower base according to claim 1, characterized in that: The lower surface of the pressing plate (508) is provided with a plurality of groups of positioning grooves (5081) at equal intervals, and the inner walls of the positioning grooves (5081) are bonded with elastic pads.

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