Welding machine for iron tower steel structure

Abstract

The invention relates to a welding machine for an iron tower steel structure, and relates to the technical field of iron tower steel structure welding, the welding machine comprises a connecting base, a three-axis welding mechanical arm and a welding table, two feeding conveying belts are arranged at the top of the connecting base, and a rotation driving assembly is arranged between the two feeding conveying belts; the rotary driving assembly comprises an active driving machine box and a rotary connecting machine box, a lifting transmission assembly is connected between the active driving machine box and the rotary connecting machine box, and a welding connection assembly is connected between the active climbing machine box and the rotary transmission machine box; automatic feeding and discharging work is achieved by arranging conveying and clamping equipment, so that automation of the welding action is achieved, the welding efficiency is improved, the action of fixing and clamping is achieved in the ascending moving process through a linkage structure mechanism, and the welding quality is improved. Therefore, switching of the conveying transfer function and the welding fixing function of the welding table is completed.

Description

Technical Field

[0001] This application relates to the technical field of tower steel structure welding, and in particular to a welding machine for tower steel structures. Background Art

[0002] Steel towers are a common building structure in modern architecture, mostly formed by welding steel frames. The tower feet of steel towers are stable pipe fittings, but the welding of tower feet is rather troublesome, and during the welding process, it is easy for the welding to be unstable due to narrow joints.

[0003] After retrieval, the existing patent (publication number: CN119216903A) discloses a welding robot for tower steel structures, including: a welding robot body that travels on a welding track, and a welding torch is connected to the execution end of the welding robot body; a welding platform is arranged on one side of the welding track for carrying angle steel tower feet; an attitude adjustment unit is connected to the welding platform and is used to flip and rotate the welding platform; an image acquisition unit is arranged above the angle steel tower feet for acquiring images of the angle steel tower feet. The controller controls the action of the attitude adjustment unit according to the acquired images, flips and rotates the welding platform. The welding platform and the welding robot body cooperate with each other to make the welding torch directly face the welding position of the angle steel tower feet, effectively solving the problems of irregular shape and large welding difficulty of the angle steel tower feet; according to the image acquisition results, compensating for the deviation in the attitude adjustment process to improve welding accuracy. The inventor found the following problems in the process of implementing this application: The existing welding robots for tower steel structures are provided with a flipping setting for more precise welding, but this setting makes the welding robot can only manually connect the next tower foot for welding after the welding of a single tower foot is completed, and continuous welding cannot be achieved, which is not suitable for large-scale tower foot welding work.

[0004] Therefore, in view of the above related technical problems, a welding machine for tower steel structures is proposed. Summary of the Invention

[0005] To improve the above problems, this application provides a welding machine for tower steel structures.

[0006] This application provides a welding machine for tower steel structures, adopting the following technical solutions: A welding machine for tower steel structures includes a connection base, a three-axis welding robotic arm, and a welding table. Two sets of feeding conveyors are arranged on the top of the connection base, and a rotation driving assembly is arranged between the two sets of feeding conveyors. The rotation driving assembly includes a main driving machine box and a rotation connection machine box, and a lifting transmission assembly is connected between the main driving machine box and the rotation connection machine box; Among them, the lifting and driving assembly includes a main climbing machine case and a rotating driving machine case, and a welding connection assembly is connected between the main climbing machine case and the rotating driving machine case. The welding connection assembly includes a main lifting machine case and a driven lifting machine case, and the welding table is connected between the main lifting machine case and the driven lifting machine case. The three-axis welding robotic arm is arranged on one side of the welding table.

[0007] Preferably, the welding table includes a clamping table plate and a driving assembly. The two ends of the clamping table plate are respectively abutted against two groups of feeding conveyer belts. Three moving sliding grooves arranged in a circular array are provided at the top of the clamping table plate. A limiting clamping assembly and two groups of auxiliary clamping assemblies are respectively connected in the three moving sliding grooves. The sliding groove where the limiting clamping assembly is located is on the same straight line as the feeding conveyer belt.

[0008] By adopting the above technical solution, the work of automatic feeding and discharging is realized by setting the conveying and clamping devices, thereby realizing the automation of the welding action and increasing the welding efficiency. The tower feet to be welded are placed on the feeding conveyer belt, and the tower feet are conveyed to the welding table on the feeding conveyer belt for welding. The tower feet are clamped and fixed by the limiting clamping assembly and two groups of auxiliary clamping assemblies on the clamping table plate, and the subsequent conveying and discharging actions are completed after relaxation.

[0009] Preferably, a connecting outer ring and a connecting inner ring are connected to the inner top of the clamping table plate by bolts. The connecting outer ring and the connecting inner ring are concentric circular rings. The diameter of the connecting outer ring is larger than that of the connecting inner ring. Three telescopic connecting grooves arranged in a circular array are provided in both the connecting outer ring and the connecting inner ring. The bottom of the connecting outer ring is connected with a driving disc through a bearing.

[0010] Preferably, the limiting clamping assembly includes a telescopic limiting plate, a lifting connecting block and a clamping block connecting plate. The lifting connecting block is in a C-shaped block shape, and the lifting connecting block is connected to the top of one end of the telescopic limiting plate. A lifting column is arranged in the lifting connecting block. The clamping block connecting plate is in a mirror-image C-shaped block shape.

[0011] Preferably, the auxiliary clamping assembly includes a telescopic connecting plate and a fixed clamping plate. The fixed clamping plate is welded to one end of the telescopic connecting plate through a connecting rod. The top end of the clamping block connecting plate is also connected with a fixed clamping plate. The three fixed clamping plates are respectively arranged above the three moving sliding grooves. Telescopic gear plates and telescopic sliders are respectively arranged on both sides of the telescopic connecting plate and the telescopic limiting plate.

[0012] Preferably, the telescopic slider is inserted into two groups of telescopic connection grooves located on the same straight line. A driving gear ring is connected to the top of the driving disc, and a rotary driving gear is connected to the center position of the bottom of the driving disc. Three transmission gears are arranged in an annular array between the connecting outer ring and the connecting inner ring, and the transmission gears are meshed with the telescopic gear plate and the driving gear ring respectively.

[0013] Preferably, lifting sleeves and sliding rollers are respectively connected to both sides of the bottom edge of the clamp connecting plate. The lifting sleeves are sleeved on the outside of the lifting columns. A lifting limit plate is connected to the connecting inner ring, and a lifting limit groove is arranged in the lifting limit plate. One end of the sliding roller is fitted into the lifting limit groove.

[0014] Preferably, the driving assembly includes a driving motor and a driving rotating shaft. The driving rotating shaft is connected to the output shaft of the driving motor. Two threaded columns are sleeved on the outside of the driving rotating shaft through splines. The two threaded columns are respectively located in the middle section and one end of the driving rotating shaft. The threaded column located in the middle section of the driving rotating shaft is meshed with the rotary driving gear.

[0015] Preferably, a climbing gear is arranged in the active lifting machine box, and a lifting gear plate is arranged in the active climbing machine box. The climbing gear, the threaded column located at one end of the driving rotating shaft, and the lifting gear plate are meshed with each other. The active lifting machine box and the driven lifting machine box are respectively inserted into the active climbing machine box and the rotary transmission machine box.

[0016] Preferably, a rotary motor is connected to one side of the active driving machine box. The active climbing machine box and the rotary transmission machine box are respectively connected to the active driving machine box and the rotary connection machine box through rotating shafts. One end of the three-axis welded robotic arm is connected with a welding assembly, and an industrial identification camera is connected to the welding assembly.

[0017] By adopting the above technical solutions, the action of fixed clamping is realized during the upward movement through a linkage structural mechanism, so as to complete the switching between the functions of welding table transmission and transfer and welding fixation. The driving motor drives the driving rotating shaft to rotate. During the rotation of the driving rotating shaft, the two threaded columns connected thereto rotate together. During the rotation of the threaded columns, the three fixed clamping plates approach or move away from each other, thereby completing the clamping action. At the same time, during the rotation of one threaded column, the climbing gear connected thereto rotates. During the rotation of the climbing gear, it can perform a climbing action on the lifting gear plate in the active climbing machine box, thereby driving the active lifting machine box to rise and fall. Correspondingly climbing transmission structures can also be arranged in the driven lifting machine box and the rotary transmission machine box, so that the welding connection assembly can perform a stable climbing action in the lifting transmission assembly, thereby driving the welding table connected to the welding connection assembly to move up and down.

[0018] 1. Compared with the prior art, this welding machine for iron tower steel structures realizes automatic feeding and discharging by setting up conveying and clamping devices, thus achieving the automation of welding operations, increasing the welding efficiency. The tower feet to be welded are placed on the feeding conveyor belt, and the tower feet are conveyed to the welding table on the feeding conveyor belt for welding. The tower feet are clamped and fixed on the clamping table board by the limit clamping assembly and two groups of auxiliary clamping assemblies.

[0019] 2. Compared with the prior art, this welding machine for iron tower steel structures realizes the action of fixed clamping during the upward movement through a linkage structural mechanism, thus completing the switching between the functions of welding table conveying and transfer and welding fixation. The driving motor drives the driving rotating shaft to rotate, and during the rotation of the driving rotating shaft, the two groups of threaded columns connected to it rotate together. During the rotation of the threaded columns, the three fixed clamping plates approach or move away from each other, thereby completing the clamping action. At the same time, during the rotation of one threaded column, the climbing gear connected to it rotates, and during the rotation of the climbing gear, it can perform a climbing action on the lifting gear plate in the active climbing machine case, thereby driving the active lifting machine case to rise and fall. Correspondingly climbing transmission structures can also be set in the driven lifting machine case and the rotating transmission machine case, so that the welding connection assembly can perform a stable climbing action in the lifting transmission assembly, thereby driving the welding table connected to the welding connection assembly to move up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the main body of this application; Figure 2 is a schematic side structural diagram of the main body of this application; Figure 3 is a schematic structural diagram of the welding connection assembly of this application; Figure 4 is a schematic top view structural diagram of the welding table of this application; Figure 5 is a schematic structural diagram of the connection outer ring of this application; Figure 6 is a schematic structural diagram of the limit clamping assembly of this application; Figure 7 is a schematic structural diagram of the auxiliary clamping assembly of this application; Figure 8 is a schematic structural diagram of the lifting limit plate of this application; Figure 9 is a schematic structural diagram of the driving assembly of this application; Figure 10 is a schematic structural diagram of the driving disc of this application.

[0021] The reference numerals are: 1, connecting base; 11, loading conveyor belt; 2, three-axis welding robotic arm; 21, welding assembly; 211, industrial identification camera; 3, rotary drive assembly; 31, active drive chassis; 311, rotary motor; 32, rotary connection chassis; 4, lifting drive assembly; 41, active climbing chassis; 411, lifting gear plate; 42, rotary drive chassis; 5, welding connection assembly; 51, active lifting chassis; 511, climbing gear; 52, driven lifting chassis; 6, welding table; 61, clamping table plate; 611, moving chute; 62, drive assembly; 621, drive motor; 622, drive rotating shaft; 623, threaded column; 63, limit clamping assembly; 631, telescopic limit plate; 632, lifting connection block; 6321, lifting column; 633, clamp connection plate; 6331, sliding roller; 6332, lifting sleeve; 64, auxiliary clamping assembly; 641, telescopic connection plate; 642, telescopic gear plate; 643, telescopic slider; 644, fixed clamping plate; 65, connecting outer ring; 66, connecting inner ring; 661, telescopic connection groove; 67, drive disc; 671, drive gear ring; 672, rotary drive gear; 68, lifting limit plate; 69, transmission gear. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0023] The following combines the attached Figures 1 - 10 , and further details the present application.

[0024] A welding machine for steel structures of iron towers includes a connecting base 1, a three-axis welding robotic arm 2, and a welding table 6. Referring to Figure 1 and Figure 2 and Figure 3 , two groups of loading conveyor belts 11 are arranged on the top of the connecting base 1, and a rotary drive assembly 3 is arranged between the two groups of loading conveyor belts 11. The rotary drive assembly 3 includes an active drive chassis 31 and a rotary connection chassis 32, and a lifting drive assembly 4 is connected between the active drive chassis 31 and the rotary connection chassis 32; Among them, the lifting transmission assembly 4 includes a driving climbing chassis 41 and a rotating transmission chassis 42, and a welding connection assembly 5 is connected between the driving climbing chassis 41 and the rotating transmission chassis 42. The welding connection assembly 5 includes a driving lifting chassis 51 and a driven lifting chassis 52, and a welding table 6 is connected between the driving lifting chassis 51 and the driven lifting chassis 52. The three-axis welding robot arm 2 is arranged on one side of the welding table 6; the entire welding robot is located on the ground through a connection base 1, and the welding work of the welding robot is completed by the three-axis welding robot arm 2. The tower feet to be welded can be placed on the feeding conveyor belt 11, and the tower feet are conveyed to the welding table 6 on the feeding conveyor belt 11 for welding. Moreover, the welding table 6 can climb and move within the lifting transmission assembly 4 through the welding connection assembly 5, so as to lift the welding table 6 to a certain height, so that the welding table 6 can perform a certain rotating action, and the lifting transmission assembly 4 can rotate through the rotating drive assembly 3, so as to better weld the seams.

[0025] Referring to Figure 3 and Figure 4 , the welding table 6 includes a clamping table plate 61 and a driving assembly 62. The two ends of the clamping table plate 61 are respectively abutted against the two feeding conveyor belts 11. Three moving sliding grooves 611 arranged in an annular array are provided at the top of the clamping table plate 61, and a limiting clamping assembly 63 and two auxiliary clamping assemblies 64 are respectively connected in the three moving sliding grooves 611. Moreover, the sliding groove where the limiting clamping assembly 63 is located is on the same straight line as the feeding conveyor belt 11; the tower feet are welded on the clamping table plate 61, and the tower feet are clamped and fixed on the clamping table plate 61 by the limiting clamping assembly 63 and the two auxiliary clamping assemblies 64. The limiting clamping assembly 63 and the two auxiliary clamping assemblies 64 can slide in the moving sliding grooves 611, and when the tower feet are conveyed onto the clamping table plate 61, they are blocked and limited by the limiting clamping assembly 63.

[0026] Referring to Figure 5 , an outer connecting ring 65 and an inner connecting ring 66 are connected to the inner top of the clamping table plate 61 by bolts. The outer connecting ring 65 and the inner connecting ring 66 are concentric circular rings. The diameter of the outer connecting ring 65 is larger than that of the inner connecting ring 66. Three telescopic connecting grooves 661 arranged in an annular array are provided in both the outer connecting ring 65 and the inner connecting ring 66. The bottom of the outer connecting ring 65 is connected to a driving disc 67 by a bearing; for the outer connecting ring 65 and the inner connecting ring 66, the outer connecting ring 65 and the inner connecting ring 66 are fixedly connected in the clamping table plate 61, and the driving disc 67 can rotate freely in the clamping table plate 61.

[0027] Referring to Figure 5 and Figure 6, the limit clamping assembly 63 includes a telescopic limit plate 631, a lifting connection block 632 and a clamp connection plate 633. The lifting connection block 632 is in the shape of a C-shaped block, and the lifting connection block 632 is connected to the top of one end of the telescopic limit plate 631. A lifting column 6321 is arranged inside the lifting connection block 632. The clamp connection plate 633 is in the shape of a mirror-image C-shaped block.

[0028] Refer to Figure 6 and Figure 7 , the auxiliary clamping assembly 64 includes a telescopic connection plate 641 and a fixed clamping plate 644. The fixed clamping plate 644 is welded to one end of the telescopic connection plate 641 through a connecting rod, and the top of the clamp connection plate 633 is also connected with a fixed clamping plate 644. The three groups of fixed clamping plates 644 are respectively arranged above the three groups of moving sliding grooves 611. Telescopic gear plates 642 and telescopic sliders 643 are respectively arranged on both sides of the telescopic connection plate 641 and the telescopic limit plate 631; the auxiliary clamping assembly 64 and the limit clamping assembly 63 clamp and fix the tower leg through the fixed clamping plates 644 connected thereto, and the fixed clamping plate 644 can slide in the moving sliding groove 611, and the fixed clamping plate 644 connected to the limit clamping assembly 63 can be lifted in the moving sliding groove 611.

[0029] Refer to Figure 5 and Figure 10 , the telescopic slider 643 is inserted into two groups of telescopic connection grooves 661 located on the same straight line. A driving gear ring 671 is connected to the top of the driving disc 67, and a rotating driving gear 672 is connected to the center position of the bottom of the driving disc 67. Three groups of transmission gears 69 arranged in an annular array are provided between the connecting outer ring 65 and the connecting inner ring 66, and the transmission gears 69 are meshed with the telescopic gear plates 642 and the driving gear ring 671; both the auxiliary clamping assembly 64 and the limit clamping assembly 63 can perform telescopic sliding in the telescopic connection grooves 661 of the connecting outer ring 65 and the connecting inner ring 66 through the telescopic sliders 643. When the driving disc 67 rotates, it drives the driving gear ring 671 connected thereto to rotate together, and when the driving gear ring 671 rotates, it drives the transmission gears 69 to rotate. When the transmission gears 69 rotate, they drive the telescopic gear plates 642 and the auxiliary clamping assembly 64 and the limit clamping assembly 63 connected thereto to slide, so as to drive the three groups of fixed clamping plates 644 to approach or move away from each other, thereby completing the clamping action.

[0030] Refer to Figure 6 and Figure 8, on both sides of the bottom edge of the clamping block connecting plate 633, a lifting sleeve 6332 and a sliding roller 6331 are respectively connected. The lifting sleeve 6332 is sleeved outside the lifting column 6321. A lifting limit plate 68 is connected to the connecting inner ring 66. A lifting limit groove 681 is arranged in the lifting limit plate 68, and one end of the sliding roller 6331 is fitted in the lifting limit groove 681. During the movement of the limit clamping assembly 63, the clamping block connecting plate 633 slides through the sliding roller 6331 in the lifting limit groove 681 of the lifting limit plate 68 and moves up and down following the trajectory of the lifting limit groove 681. At the same time, the clamping block connecting plate 633 moves up and down on the lifting column 6321 of the lifting connecting block 632 through the lifting sleeve 6332, so as to complete the lifting movement of the fixed clamping plate 644 connected to the clamping block connecting plate 633. During the lifting process of the fixed clamping plate 644, the actions of blocking and releasing the tower foot are completed.

[0031] Refer to Figure 8 and Figure 9 , the driving assembly 62 includes a driving motor 621 and a driving rotating shaft 622. The driving rotating shaft 622 is connected to the output shaft of the driving motor 621. Two sets of threaded columns 623 are sleeved on the outside of the driving rotating shaft 622 through splines. The two sets of threaded columns 623 are respectively located in the middle section and one end of the driving rotating shaft 622. The threaded column 623 located in the middle section of the driving rotating shaft 622 meshes with the rotating driving gear 672. The driving motor 621 drives the driving rotating shaft 622 to rotate. During the rotation of the driving rotating shaft 622, the two sets of threaded columns 623 connected to it rotate together. During the rotation of the threaded column 623, the rotating driving gear 672 connected to it rotates, thereby driving the driving disc 67 to rotate.

[0032] Refer to Figure 3 and Figure 9 , a climbing gear 511 is arranged in the active lifting chassis 51, and a lifting gear plate 411 is arranged in the active climbing chassis 41. The climbing gear 511, the threaded column 623 at one end of the driving rotating shaft 622, and the lifting gear plate 411 are all meshed with each other. The active lifting chassis 51 and the driven lifting chassis 52 are respectively inserted into the active climbing chassis 41 and the rotating transmission chassis 42. At the same time, during the rotation of a set of threaded columns 623, the climbing gear 511 connected to it rotates. During the rotation of the climbing gear 511, it can climb on the lifting gear plate 411 in the active climbing chassis 41, thereby driving the active lifting chassis 51 to lift. And corresponding climbing transmission structures can also be arranged in the driven lifting chassis 52 and the rotating transmission chassis 42, so that the welding connection assembly 5 can perform a stable climbing action in the lifting transmission assembly 4, and further drive the welding table 6 connected to the welding connection assembly 5 to move up and down.

[0033] Reference Figure 1 and Figure 2 On one side of the active drive chassis 31, a rotary motor 311 is connected. The active climbing chassis 41 and the rotary drive chassis 42 are respectively connected to the inside of the active drive chassis 31 and the rotary connection chassis 32 through rotating shafts. One end of the three-axis welding robot arm 2 is connected with a welding assembly 21, and an industrial recognition camera 211 is connected to the welding assembly 21. The rotary motor 311 can drive the lifting transmission assembly 4 to rotate. During the rotation of the lifting transmission assembly 4, the welding connection assembly 5 and the welding table 6 connected thereto are driven to rotate, thereby completing the rotation adjustment action of the tower foot. The three-axis welding robot arm 2 performs welding work through the welding assembly 21. The welding assembly 21 can scan and identify the welded tower foot through the industrial recognition camera 211, and then perform precise welding actions. The three-axis welding robot arm 2, the welding assembly 21, and the industrial recognition camera 211 are all existing mature technologies and will not be elaborated here.

[0034] The working process of this application is as follows: First, the tower foot to be welded can be placed on the feeding conveyor belt 11. The tower foot is conveyed to the welding table 6 on the feeding conveyor belt 11 for welding. The tower foot is clamped and fixed on the clamping table plate 61 by the limit clamping assembly 63 and two groups of auxiliary clamping assemblies 64. The driving motor 621 drives the driving rotating shaft 622 to rotate. During the rotation of the driving rotating shaft 622, the two threaded columns 623 connected thereto rotate together. During the rotation of the threaded columns 623, the rotating drive gears 672 connected thereto rotate, thereby driving the driving disc 67 to rotate; During the rotation of the driving disc 67, the driving gear ring 671 connected thereto rotates together. During the rotation of the driving gear ring 671, the transmission gear 69 rotates. During the rotation of the transmission gear 69, the telescopic gear plate 642 and the auxiliary clamping assembly 64 and the limit clamping assembly 63 connected thereto slide and move, thereby driving the three fixed clamping plates 644 to approach or move away from each other, and then completing the clamping action. During the movement of the limit clamping assembly 63, the clamping block connecting plate 633 slides and moves in the lifting limit groove 681 of the lifting limit plate 68 through the sliding rollers 6331 and moves up and down following the trajectory of the lifting limit groove 681. At the same time, the clamping block connecting plate 633 moves up and down on the lifting column 6321 of the lifting connection block 632 through the lifting sleeve 6332, thereby completing the lifting movement of the fixed clamping plate 644 connected to the clamping block connecting plate 633. During the lifting of the fixed clamping plate 644, the actions of blocking and releasing the tower foot are completed; Meanwhile, a set of threaded posts 623 drive the climbing gear 511 connected thereto to rotate during rotation. During the rotation of the climbing gear 511, a climbing action can be performed on the lifting gear plate 411 in the active climbing chassis 41, thereby driving the active lifting chassis 51 to lift and lower. Correspondingly climbing transmission structures can also be provided in the driven lifting chassis 52 and the rotating transmission chassis 42, so that the welding connection assembly 5 can perform a stable climbing action within the lifting transmission assembly 4, and further drive the welding table 6 connected to the welding connection assembly 5 to move up and down; During welding work, the welding assembly 21 can scan and identify the welded tower foot through the industrial recognition camera 211, and then perform precise welding actions. The three-axis welding robotic arm 2 drives the welding assembly 21 to move and weld. Moreover, the lifting transmission assembly 4 can be driven to rotate by the rotating motor 311. During the rotation of the lifting transmission assembly 4, the welding connection assembly 5 and the welding table 6 connected thereto are driven to rotate, and then the rotation adjustment action of the tower foot is completed to facilitate better adjustment of the welding angle of the tower foot.

[0035] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A welding machine for a steel tower structure, comprising a connection base (1), a three-axis welding robot arm (2) and a welding table (6), characterized in that: Two groups of feeding conveyor belts (11) are arranged on the top of the connection base (1), a rotating drive assembly (3) is arranged between the two groups of feeding conveyor belts (11), the rotating drive assembly (3) comprises an active driving chassis (31) and a rotating connection chassis (32), and a lifting transmission assembly (4) is connected between the active driving chassis (31) and the rotating connection chassis (32); The lifting transmission assembly (4) comprises an active climbing chassis (41) and a rotating transmission chassis (42), and a welding connection assembly (5) is connected between the active climbing chassis (41) and the rotating transmission chassis (42), the welding connection assembly (5) comprises an active lifting chassis (51) and a driven lifting chassis (52), and the welding table (6) is connected between the active lifting chassis (51) and the driven lifting chassis (52), and the three-axis welding robot arm (2) is arranged on one side of the welding table (6).

2. A welding machine for a steel tower structure according to claim 1, characterized in that: The welding table (6) comprises a clamping table (61) and a driving assembly (62), and the two ends of the clamping table (61) are respectively abutted against two groups of feeding conveyor belts (11), and the top of the clamping table (61) is provided with three groups of movable slide grooves (611) arranged in a circular array, and the three groups of movable slide grooves (611) are respectively connected to the limited clamping assembly (63) and the two groups of auxiliary clamping assemblies (64), and the slide groove where the limited clamping assembly (63) is located is on the same straight line as the feeding conveyor belt (11).

3. A welding machine for a steel tower structure according to claim 2, characterized in that: The top of the inner side of the clamping plate (61) is connected to an outer connecting ring (65) and an inner connecting ring (66) by bolts, and the outer connecting ring (65) and the inner connecting ring (66) are concentric circular rings, the diameter of the outer connecting ring (65) is larger than the diameter of the inner connecting ring (66), and three groups of telescopic connecting grooves (661) in a circular array are arranged in the outer connecting ring (65) and the inner connecting ring (66), and the bottom of the outer connecting ring (65) is connected to a driving disc (67) via a bearing.

4. A welding machine for a steel tower structure according to claim 1, characterized in that: The limit clamping assembly (63) comprises a telescopic limit plate (631), a lifting connection block (632) and a clamping block connection plate (633); the lifting connection block (632) is a C-shaped block, and the lifting connection block (632) is connected to the top of one end of the telescopic limit plate (631); a lifting column (6321) is arranged in the lifting connection block (632); and the clamping block connection plate (633) is a mirror image C-shaped block.

5. A welding machine for a steel tower structure according to claim 3, characterized in that: The auxiliary clamping assembly (64) comprises a telescopic connecting plate (641) and a fixed clamping plate (644), wherein the fixed clamping plate (644) is welded to one end of the telescopic connecting plate (641) via a connecting rod, and the top end of the clamping block connecting plate (633) is also connected to the fixed clamping plate (644), and three groups of the fixed clamping plates (644) are respectively arranged above the three groups of movable slide grooves (611), and telescopic gear plates (642) and telescopic sliders (643) are respectively arranged on both sides of the telescopic connecting plate (641) and the telescopic limiting plate (631).

6. A welding machine for a steel tower structure according to claim 1, characterized in that: The telescopic sliding block (643) is inserted into two groups of telescopic connecting grooves (661) located in the same straight line. The top of the driving disc (67) is connected to a driving gear ring (671), and the bottom center of the driving disc (67) is connected to a rotating driving gear (672). Three groups of transmission gears (69) arranged in a ring array are provided between the connecting outer ring (65) and the connecting inner ring (66), and the transmission gears (69) are meshed with the telescopic gear plate (642) and the driving gear ring (671).

7. A welding machine for a steel tower structure according to claim 6, characterized in that: The two sides of the bottom edge of the clamp block connecting plate (633) are respectively connected to a lifting sleeve (6332) and a sliding roller (6331), and the lifting sleeve (6332) is sleeved on the outer side of the lifting column (6321). The connecting inner ring (66) is connected to a lifting limit plate (68), and a lifting limit groove (681) is provided in the lifting limit plate (68), and one end of the sliding roller (6331) is embedded in the lifting limit groove (681).

8. A welding machine for a steel tower structure according to claim 7, characterized in that: The driving assembly (62) comprises a driving motor (621) and a driving shaft (622); the driving shaft (622) is connected to the output shaft of the driving motor (621); and two groups of threaded columns (623) are connected to the outer side of the driving shaft (622) via a spline sleeve; the two groups of threaded columns (623) are respectively located in the middle section and one end of the driving shaft (622); and the threaded columns (623) located in the middle section of the driving shaft (622) are meshed with the rotating driving gear (672).

9. A welding machine for a steel tower structure according to claim 6, characterized in that: The active lifting chassis (51) is provided with a climbing gear (511), the active climbing chassis (41) is provided with a lifting gear plate (411), and the climbing gear (511) and the threaded column (623) located at one end of the driving shaft (622) and the lifting gear plate (411) are all meshed with each other, and the active lifting chassis (51) and the driven lifting chassis (52) are respectively plugged into the active climbing chassis (41) and the rotating transmission chassis (42).

10. A welding machine for a steel tower structure according to claim 6, characterized in that: A rotating motor (311) is connected to one side of the active drive chassis (31), and the active climbing chassis (41) and the rotating transmission chassis (42) are respectively connected to the active drive chassis (31) and the rotating connection chassis (32) via rotating shafts; one end of the three-axis welding robot arm (2) is connected to a welding assembly (21), and an industrial identification camera (211) is connected to the welding assembly (21).

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