Welding device for steel structure production

Abstract

The invention relates to the technical field of steel structure welding, and discloses a welding device for steel structure production, the welding device comprises a mounting table and a mounting ring fixedly connected to the mounting table, and a transmission groove is formed in the top of the mounting ring; according to the welding device for steel structure production, the transverse connecting rods of the frame are accurately placed into the positioning and fixing mechanism through the welding feeding mechanism, the connecting rods are positioned and fixed through the positioning and fixing mechanism, the welding feeding and splicing mechanism is arranged in the mounting groove, and the welding feeding and splicing mechanism is used for automatically feeding and splicing the connecting rods of the frame. The welding mechanism is used for welding and fixing the spliced frame, then the vertical connecting rod is accurately placed on the welded forming frame, then the welding mechanism is used for automatically welding the vertical connecting rod, and the steps are repeated in sequence, so that automatic splicing and welding of the steel structure frame are implemented, manual operation is not needed, and the welding efficiency is improved. And the welding efficiency of the steel structure frame is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure welding, and in particular to a welding device used for steel structure production. Background Art

[0002] The steel structure frame is a frame made of steel material. It has a wide range of uses and is often used to make products such as walls, elevators and house main bodies. The steel structure frame not only has good vertical load bearing capacity, but also has good lateral resistance. It has good resistance to wind loads, earthquakes, etc. The steel structure frame is generally made of horizontal steel and longitudinal steel, two types of steel welded in different directions. During the production process of the steel structure frame, the horizontal connecting rods and the longitudinal connecting rods need to be firmly welded to form a steel structure frame.

[0003] In the existing steel structure frame welding process, the connecting rod is mostly manually placed into a positioning fixture for positioning and fixing, and then a hand-held welding gun is used to weld the fixed forming frame, and then the longitudinal connecting rod is placed on the forming frame for calibration and positioning, and then welding is performed. The welding automation level of the steel structure frame is low, resulting in low welding efficiency of the frame. At the same time, manual positioning wastes a lot of time. At the same time, during the splicing process, due to manual splicing, it is difficult to control the overall splicing accuracy, which easily leads to poor accuracy after splicing, resulting in the problem of reduced quality of the steel structure frame after welding. Summary of the invention

[0004] The object of the present invention is to provide a welding device for steel structure production to solve the deficiencies in the above-mentioned background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A welding device for steel structure production, comprising: a mounting platform and a mounting ring fixedly connected to the mounting platform, wherein a transmission groove is provided on the top of the mounting ring;

[0007] A welding feeding and splicing mechanism, which is arranged in the mounting groove and is used for automatically feeding and splicing the connecting rods of the frame;

[0008] A welding mechanism, which is arranged on a mounting platform and is used for automatically welding the spliced ​​frames;

[0009] A positioning and fixing mechanism is arranged on the mounting platform and is used to fix the frame.

[0010] As a further solution of the present invention: the welding feeding and splicing mechanism comprises a transmission gear ring rotatably connected to the mounting ring, the inner surface of the transmission gear ring is transmission-connected with a driving mechanism connected to the mounting platform, the driving mechanism is used to drive the transmission gear ring to rotate, the top of the transmission gear ring is fixedly connected with a mounting plate, the top of the mounting plate is rotationally connected with a first mounting shaft, the outer surface of the first mounting shaft is transmission-connected with a first transmission mechanism connected with the mounting plate, the first transmission mechanism is used to drive the first mounting shaft to rotate, the top of the first mounting shaft is fixedly connected with a mounting frame, the mounting frame is rotationally connected with a second mounting shaft, the outer surface of the second mounting shaft is fixedly sleeved with a transmission frame, the outer surface of the second mounting shaft is transmission-connected with a second transmission mechanism fixedly sleeved with the mounting frame, and the second transmission mechanism is used to drive the second mounting shaft to rotate;

[0011] The top of the transmission frame is fixedly connected to a first transmission motor, an output end of the first transmission motor is fixedly connected to a first threaded rod rotatably connected to the transmission frame through a coupling, an outer surface of the first threaded rod is threadedly matched with a slider, one side of the slider is fixedly connected to a mounting disk, one side of the mounting disk is rotatably connected to a third mounting shaft, an outer surface of the third mounting shaft is fixedly sleeved with a third transmission mechanism connected to the mounting disk, the third transmission mechanism is used to drive the third mounting shaft to rotate, one end of the third mounting shaft is fixedly connected to a first electric telescopic rod, one end of the first electric telescopic rod is fixedly connected to a clamping frame, a second electric telescopic rod is fixedly connected in the clamping frame, one end of the second electric telescopic rod is fixedly connected to a first clamping block, a connecting rod feeding mechanism is provided on the mounting table, and the connecting rod feeding mechanism is used to automatically feed the connecting rod raw material of the frame.

[0012] As a further solution of the present invention: the driving mechanism includes a driving motor fixedly connected to the mounting table, the output end of the driving motor is fixedly connected to the driving shaft through a coupling, and the outer surface of the driving shaft is fixedly sleeved with a driving gear meshing with a transmission gear ring.

[0013] As a further solution of the present invention: the first transmission mechanism includes a first motor fixedly connected to the mounting plate, the output end of the first motor is fixedly connected to the first rotating shaft through a coupling, the outer surface of the first rotating shaft is fixedly sleeved with a first gear, and the outer surface of the first gear is fixedly sleeved with a second gear fixedly sleeved with the first mounting shaft.

[0014] As a further solution of the present invention: the second transmission mechanism includes a third electric telescopic rod fixedly connected to the mounting frame, one end of the third electric telescopic rod is fixedly connected to a transmission rack slidably connected to the mounting frame, and one side of the transmission rack is meshedly connected to a third gear fixedly sleeved on the second mounting shaft.

[0015] As a further solution of the present invention: the third transmission mechanism includes a second motor fixedly connected to the mounting plate, the output end of the second motor is fixedly connected to the second rotating shaft through a coupling, the outer surface of the second rotating shaft is fixedly sleeved with a fourth gear, and the outer surface of the fourth gear is meshingly connected with a fifth gear fixedly sleeved with the third mounting shaft.

[0016] As a further solution of the present invention: the connecting rod feeding mechanism includes two feeding boxes fixedly connected to the mounting table, both sides of the feeding boxes are rotatably connected with second threaded rods, the two second threaded rods are connected by a transmission wheel and a transmission belt, one end of one of the second threaded rods is fixedly connected to a second transmission motor fixedly connected to the feeding box through a coupling, and the outer surface of the second threaded rod is threadedly matched with a push plate slidably connected to the feeding box.

[0017] As a further solution of the present invention: the welding mechanism includes a mounting frame fixedly connected to the mounting table, a fourth electric telescopic rod is fixedly connected to the mounting frame, the bottom end of the fourth electric telescopic rod is fixedly connected to a mechanical arm through a connecting plate, one end of the mechanical arm is fixedly connected to a welding head, and the welding head is connected to the welding machine body.

[0018] As a further solution of the present invention: the positioning and fixing mechanism includes a fifth electric telescopic rod fixedly connected to the mounting table, the top of the fifth electric telescopic rod is fixedly connected to a discharge tray, the top of the discharge tray is fixedly connected to multiple sixth electric telescopic rods, and one end of the sixth electric telescopic rod is fixedly connected to a second clamping block.

[0019] As a further solution of the present invention: a rubber buffer pad is fixedly connected to one side of the second clamping block.

[0020] Beneficial effects of the present invention:

[0021] (1) The horizontal connecting rods of the frame are accurately placed into the positioning and fixing mechanism through the welding feeding mechanism to position and fix the connecting rods, and then the spliced ​​frame is welded and fixed through the welding mechanism. Then the vertical connecting rods are accurately placed on the welded forming frame, and then the vertical connecting rods are automatically welded by the welding mechanism, and the process is repeated in sequence, thereby implementing the automatic assembly and welding of the steel structure frame without manual operation, which greatly improves the welding efficiency of the steel structure frame.

[0022] (2) The driving mechanism drives the transmission gear ring to rotate, thereby driving the transmission frame to rotate, and then the transmission mechanisms cooperate with each other to drive the clamping frame to move, so that the first clamping block in the clamping frame clamps the frame connecting rod in the feed box to take the material, and at the same time accurately splices it, which greatly improves the splicing accuracy of the steel structure frame and further improves the welding quality of the steel structure frame.

[0023] (3) By placing multiple horizontal connecting rods and vertical connecting rods into two feeding boxes respectively, and then automatically feeding the connecting rods through the feeding mechanism in the feeding box, and then automatically taking the materials through the loading and welding mechanism, and placing them on the discharge tray for precise positioning and fixing, the degree of automation of the splicing of the steel structure frame is further improved, and the installation accuracy of the frame base is also improved, ensuring the subsequent splicing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 is a first stereogram of the external structure of the present invention;

[0026] Figure 2 is a second stereoscopic diagram of the external structure of the present invention;

[0027] Figure 3 is a third stereogram of the external structure of the present invention;

[0028] Figure 4 is a fourth stereogram of the external structure of the present invention;

[0029] Figure 5 The present invention Figure 2 A magnified view of middle;

[0030] Figure 6 The present invention Figure 3 Enlarged view of middle B;

[0031] Figure 7 The present invention Figure 3 Enlarged view of middle C;

[0032] Figure 8 The present invention Figure 4 Enlarged view of D in the middle.

[0033] In the figure: 1, mounting table; 2, mounting ring; 3, transmission groove; 11, transmission gear ring; 12, mounting plate; 13, first mounting shaft; 14, mounting frame; 15, second mounting shaft; 16, transmission frame; 17, first transmission motor; 18, first threaded rod; 19, slider; 190, mounting plate; 191, third mounting shaft; 192, first electric telescopic rod; 193, clamping frame; 194, second electric telescopic rod; 195, first clamping block; 21, drive motor; 22, drive shaft; 23, drive gear; 31, first motor; 32. The first rotating shaft; 33. The first gear; 34. The second gear; 41. The third electric telescopic rod; 42. The transmission rack; 43. The third gear; 51. The second motor; 52. The second rotating shaft; 53. The fourth gear; 54. The fifth gear; 61. The feed box; 62. The second threaded rod; 63. The second transmission motor; 64. The push plate; 71. The mounting frame; 72. The fourth electric telescopic rod; 73. The mechanical arm; 74. The welding head; 81. The fifth electric telescopic rod; 82. The discharge tray; 83. The sixth electric telescopic rod; 84. The second clamping block. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] See also Figure 1-Figure 8 As shown, the present invention is a welding device for steel structure production, including a mounting table 1, a mounting ring 2 is fixedly connected to the mounting table 1, a transmission groove 3 is opened on the top of the mounting ring 2, a welding feeding mechanism is arranged in the transmission groove 3, the welding feeding mechanism is used for automatically feeding and splicing the connecting rods of the frame, a welding mechanism is arranged on the mounting table 1, the welding mechanism is used for welding and fixing the spliced ​​frame, and a positioning and fixing mechanism is arranged on the mounting table 1, the positioning and fixing mechanism is used for fixing the frame.

[0037] The horizontal connecting rods of the frame are accurately placed into the positioning and fixing mechanism through the welding feeding mechanism to position and fix the connecting rods. Then the spliced ​​frame is welded and fixed through the welding mechanism. Then the vertical connecting rods are accurately placed into the welded forming frame. Then the vertical connecting rods are automatically welded through the welding mechanism. This process is repeated in sequence to implement automatic assembly and welding of the steel structure frame. No manual operation is required, which greatly improves the welding efficiency of the steel structure frame.

[0038] Embodiment 2

[0039] Based on Example 1, please refer to Figure 2-Figure 8 As shown, the welding feeding and splicing mechanism includes a transmission gear ring 11 rotatably connected to the mounting ring 2, the inner surface of the transmission gear ring 11 is transmission-connected to a driving mechanism connected to the mounting platform 1, the driving mechanism is used to drive the transmission gear ring 11 to rotate, the driving mechanism includes a driving motor 21 fixedly connected to the mounting platform 1, the driving motor 21 is controlled by a PLC programming program, and the driving motor 21 can be controlled to rotate forward and reverse and rotate at an angle, the output end of the driving motor 21 is fixedly connected to a driving shaft 22 through a coupling, the outer surface of the driving shaft 22 is fixedly sleeved with a driving gear 23 meshing with the transmission gear ring 11, and the driving motor 21 is driven by the driving shaft 22. 21 drives the driving shaft 22 to rotate, and the driving shaft 22 drives the transmission ring gear 11 to rotate through the driving gear 23. The top of the transmission ring gear 11 is fixedly connected with the mounting plate 12, and the top of the mounting plate 12 is rotatably connected with the first mounting shaft 13. The outer surface of the first mounting shaft 13 is transmission-connected with a first transmission mechanism connected to the mounting plate 12. The first transmission mechanism is used to drive the first mounting shaft 13 to rotate. The first transmission mechanism includes a first motor 31 fixedly connected to the mounting plate 12. The first motor 31 is controlled by a PLC programming program to control the first motor 31 to rotate forward and reverse and rotate at an angle. The first motor 31 The output end of the motor 1 is fixedly connected to the first rotating shaft 32 through a coupling, the outer surface of the first rotating shaft 32 is fixedly sleeved with a first gear 33, the outer surface of the first gear 33 is fixedly sleeved with a second gear 34 fixedly sleeved with the first mounting shaft 13, the first rotating shaft 32 is driven to rotate by the first motor 31, the first rotating shaft 32 drives the first mounting shaft 13 to rotate through the first gear 33 and the second gear 34, the top of the first mounting shaft 13 is fixedly connected to the mounting frame 14, the mounting frame 14 is rotatably connected with the second mounting shaft 15, the outer surface of the second mounting shaft 15 is fixedly sleeved with a transmission frame 16, the outer surface of the second mounting shaft 15 The surface transmission is connected with a second transmission mechanism fixedly sleeved with the mounting frame 14, and the second transmission mechanism is used to drive the second mounting shaft 15 to rotate. The second transmission mechanism includes a third electric telescopic rod 41 fixedly connected to the mounting frame 14, one end of the third electric telescopic rod 41 is fixedly connected with a transmission rack 42 slidably connected with the mounting frame 14, and one side of the transmission rack 42 is meshedly connected with a third gear 43 fixedly sleeved with the second mounting shaft 15. The transmission rack 42 is driven to move by the third electric telescopic rod 41, and the transmission rack 42 drives the third gear 43 to rotate, and the third gear 43 drives the second mounting shaft 15 to rotate;

[0040] A first transmission motor 17 is fixedly connected to the top of the transmission frame 16, and an output end of the first transmission motor 17 is fixedly connected to a first threaded rod 18 rotatably connected to the transmission frame 16 through a coupling. A slider 19 is threadedly matched on the outer surface of the first threaded rod 18, and a mounting plate 190 is fixedly connected to one side of the slider 19, and a third mounting shaft 191 is rotatably connected to one side of the mounting plate 190. A third transmission mechanism connected to the mounting plate 190 is fixedly sleeved on the outer surface of the third mounting shaft 191, and the third transmission mechanism is used to drive the third mounting shaft 191 to rotate. The third transmission mechanism includes a second motor fixedly connected to the mounting plate 190 51, the second motor 51 is controlled by a PLC programming program, and the second motor 51 can be controlled to rotate forward and reverse and rotate at an angle. The output end of the second motor 51 is fixedly connected to the second rotating shaft 52 through a coupling, and the outer surface of the second rotating shaft 52 is fixedly sleeved with a fourth gear 53, and the outer surface of the fourth gear 53 is meshedly connected with a fifth gear 54 fixedly sleeved with the third installation shaft 191. The second rotating shaft 52 is driven to rotate by the second motor 51, and the second rotating shaft 52 drives the third installation shaft 191 to rotate through the fourth gear 53 and the fifth gear 54. A section of the third installation shaft 191 is fixedly connected to the first electric telescopic rod 1 92, one end of the first electric telescopic rod 192 is fixedly connected to a clamping frame 193, a second electric telescopic rod 194 is fixedly connected inside the clamping frame 193, one end of the second electric telescopic rod 194 is fixedly connected to a first clamping block 195, a connecting rod feeding mechanism is provided on the mounting platform 1, the connecting rod feeding mechanism is used to automatically feed the connecting rod raw material of the frame, the connecting rod feeding mechanism includes two feeding boxes 61 fixedly connected to the mounting platform 1, both sides of the feeding box 61 are rotatably connected to the second threaded rod 62, the two second threaded rods 62 are connected by a transmission wheel and a transmission belt, one end of one of the second threaded rods 62 is connected to the mounting platform 1, and the second threaded rod 62 is connected to the mounting platform 1. A second transmission motor 63 fixedly connected to the feed box 61 is fixedly connected through a coupling. The second transmission motor 63 is controlled by a PLC programming program, and can control the second transmission motor 63 to rotate forward and backward and at a rotation angle. The outer surface of the second threaded rod 62 is threadedly matched with a push plate 64 slidingly connected to the feed box 61. The welding mechanism includes a mounting frame 71 fixedly connected to the mounting table 1, and a fourth electric telescopic rod 72 is fixedly connected to the mounting frame 71. The bottom end of the fourth electric telescopic rod 72 is fixedly connected to a mechanical arm 73 through a connecting plate, and one end of the mechanical arm 73 is fixedly connected to a welding head 74, and the welding head 74 is connected to the welding machine body.

[0041] The driving mechanism drives the transmission ring gear 11 to rotate, the transmission ring gear 11 drives the mounting plate 12 to rotate, the mounting plate 12 drives the first mounting shaft 13 and the mounting frame 14 to rotate, the mounting frame 14 drives the second mounting shaft 15 and the transmission frame 16 to rotate, and at the same time, the first transmission motor 17 drives the first threaded rod 18 to rotate, the first threaded rod 18 drives the slider 19 to move up and down, the slider 19 drives the mounting plate 190 and the third mounting shaft 191 to move, the third mounting shaft 191 drives the first electric telescopic rod 192 and the clamping frame 193 to move, so that the clamping frame 193 moves to the discharging position of the feeding box 61 equipped with the transverse connecting rod, and then the feeding mechanism supplies the cross bar from the feeding box 61. The first clamping block 195 is driven to move through the second electric telescopic rod 194 in the clamping frame 193, and the first clamping block 195 clamps and fixes the transverse connecting rod to take the material, and then the slider 19 is driven to move upward through the first threaded rod 18, and the transmission gear ring 11 is driven to rotate through the driving mechanism, and the third installation shaft 191 is driven to rotate through the third transmission mechanism, and the third installation shaft 191 drives the first electric telescopic rod 192 and the clamping frame 193 to rotate to a horizontal position, and the discharge tray 82 is driven downward by the fifth electric telescopic rod 81, and the discharge tray 82 drives the sixth electric telescopic rod 83 and the second clamping block 84 to move downward, and then the second transmission mechanism drives the The second mounting shaft 15 is turned 90°, and then the first electric telescopic rod 192 drives the clamping frame 193 to move, so that the clamped transverse connecting rod is placed on the second clamping block 84 on the discharge tray 82, and then the sixth electric telescopic rod 83 drives the second clamping block 84 to clamp and fix the transverse connecting rod, and the four transverse connecting rods are spliced ​​to the discharge tray 82 to form a frame shape. Then, the fourth electric telescopic rod 72 drives the mechanical arm 73 to move downward, and at the same time, the mechanical arm 73 drives the welding head 74 to move, and the welding head 74 welds the joints of the spliced ​​forming frames. After welding, the clamping frame 193 is driven to move to another feeding box 61 where the vertical connecting rods are placed. Position, then the clamping frame 193 clamps the connecting rod in the vertical feeding box 61 to take the material, and then drives the transmission gear ring 11 to rotate through the driving mechanism, and drives the slider 19 to move up and down, and at the same time the first electric telescopic rod 192 drives the movement of the clamping frame 193, so that the vertical connecting rod is accurately placed on the welded forming frame, and then drives the mechanical arm 73 to move, and the mechanical arm 73 drives the welding head 74 to move, so that the welding head 74 welds and fixes the connection position, and when the vertical connecting rod is welded, the forming frame of the horizontal connecting rod is welded on the vertical connecting rod, and reciprocates in sequence, thereby realizing automatic feeding and automatic welding of the frame, which greatly improves the welding efficiency of the frame.

[0042] Embodiment 3

[0043] Based on Example 2, please refer to Figure 2 , Figure 4 , Figure 5 and Figure 8 As shown, the connecting rod feeding mechanism includes two feeding boxes 61 fixedly connected to the mounting platform 1, and second threaded rods 62 are rotatably connected to both sides of the feeding boxes 61. The two second threaded rods 62 are connected by a transmission wheel and a transmission belt. One end of one of the second threaded rods 62 is fixedly connected to a second transmission motor 63 fixedly connected to the feeding box 61 through a coupling. The second transmission motor 63 is controlled by a PLC programming program to control the second transmission motor 63 to rotate forward and backward and the rotation angle. The outer surface of the second threaded rod 62 is threadedly matched with a push plate 64 slidably connected to the feeding box 61.

[0044] The positioning and fixing mechanism includes a fifth electric telescopic rod 81 fixedly connected to the mounting table 1, the top of the fifth electric telescopic rod 81 is fixedly connected to a discharge tray 82, the top of the discharge tray 82 is fixedly connected to a plurality of sixth electric telescopic rods 83, one end of the sixth electric telescopic rod 83 is fixedly connected to a second clamping block 84, and one side of the second clamping block 84 is fixedly connected to a rubber buffer pad.

[0045] By placing multiple horizontal connecting rods into one of the feeding boxes 61, and placing multiple vertical connecting rods into another feeding box 61, the second transmission motor 63 then drives the second threaded rod 62 to rotate, the second threaded rod 62 drives the push plate 64 to move, and the push plate 64 drives the connecting rod to move outside the feeding box 61, so as to realize automatic pushing and feeding of the connecting rod, and then the horizontal connecting rod is taken out by the welding feeding mechanism, and then the horizontal connecting rod is then driven by the fifth electric telescopic rod 81 to move the discharge tray 82 downward, and then the horizontal connecting rod is placed in the discharge tray 82 by welding feeding, and then the second clamping block 84 is driven to move by the sixth electric telescopic rod 83, and the second clamping block 84 clamps and fixes the horizontal connecting rod so that it is accurately spliced ​​into a forming frame base, and then it is welded by the welding mechanism. After welding is completed, the vertical connecting rod is automatically fed onto the forming frame by the welding feeding mechanism, and then it is welded by the welding mechanism, thereby realizing accurate automatic feeding and splicing of the connecting rods of the frame during the frame welding process, thereby greatly improving the welding efficiency of the frame.

[0046] The working principle of the present invention is as follows: the connecting rods are automatically fed through the connecting rod feeding mechanism on the welding feeding mechanism, and then the horizontal connecting rods of the frame are accurately placed into the positioning and fixing mechanism through the welding feeding mechanism to position and fix the connecting rods, and then the spliced ​​frame is welded and fixed through the welding mechanism, and then the vertical connecting rods are accurately placed on the welded forming frame, and then the vertical connecting rods are automatically welded through the welding mechanism, and this process is repeated in sequence, thereby implementing automatic assembly and welding of the steel structure frame without manual operation, thereby greatly improving the welding efficiency of the steel structure frame.

[0047] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A welding device for steel structure production, characterized in that: include: A mounting platform (1) and a mounting ring (2) fixedly connected to the mounting platform (1), wherein a transmission groove (3) is provided on the top of the mounting ring (2); A welding feeding and splicing mechanism, which is arranged in the mounting groove and is used for automatically feeding and splicing the connecting rods of the frame; A welding mechanism, the welding mechanism being arranged on the mounting platform (1), and being used for automatically welding the spliced ​​frames; A positioning and fixing mechanism is arranged on the mounting platform (1), and is used to fix the frame.

2. A welding device for steel structure production according to claim 1, characterized in that: The welding feeding and splicing mechanism comprises a transmission gear ring (11) rotatably connected to the mounting ring (2); the inner surface of the transmission gear ring (11) is transmission-connected to a driving mechanism connected to the mounting platform (1); the driving mechanism is used to drive the transmission gear ring (11) to rotate; the top of the transmission gear ring (11) is fixedly connected to a mounting plate (12); the top of the mounting plate (12) is rotationally connected to a first mounting shaft (13); the outer surface of the first mounting shaft (13) is transmission-connected to a first transmission mechanism connected to the mounting plate (12); the first transmission mechanism is used to drive the first mounting shaft (13) to rotate; the top of the first mounting shaft (13) is fixedly connected to a mounting frame (14); the mounting frame (14) is rotationally connected to a second mounting shaft (15); the outer surface of the second mounting shaft (15) is fixedly sleeved with a transmission frame (16); the outer surface of the second mounting shaft (15) is transmission-connected to a second transmission mechanism fixedly sleeved with the mounting frame (14); the second transmission mechanism is used to drive the second mounting shaft (15) to rotate; A first transmission motor (17) is fixedly connected to the top of the transmission frame (16); an output end of the first transmission motor (17) is fixedly connected to a first threaded rod (18) rotatably connected to the transmission frame (16) via a coupling; an outer surface of the first threaded rod (18) is threadedly matched with a slider (19); a mounting plate (190) is fixedly connected to one side of the slider (19); a third mounting shaft (191) is rotatably connected to one side of the mounting plate (190); a third transmission mechanism connected to the mounting plate (190) is fixedly sleeved on the outer surface of the third mounting shaft (191); The third transmission mechanism is used to drive the third installation shaft (191) to rotate; one end of the third installation shaft (191) is fixedly connected to a first electric telescopic rod (192); one end of the first electric telescopic rod (192) is fixedly connected to a clamping frame (193); a second electric telescopic rod (194) is fixedly connected inside the clamping frame (193); one end of the second electric telescopic rod (194) is fixedly connected to a first clamping block (195); a connecting rod feeding mechanism is provided on the installation platform (1); the connecting rod feeding mechanism is used to automatically feed connecting rod raw materials of the frame.

3. A welding device for steel structure production according to claim 2, characterized in that: The driving mechanism comprises a driving motor (21) fixedly connected to the mounting platform (1); an output end of the driving motor (21) is fixedly connected to a driving shaft (22) via a coupling; an outer surface of the driving shaft (22) is fixedly sleeved with a driving gear (23) meshingly connected to a transmission gear ring (11).

4. A welding device for steel structure production according to claim 2, characterized in that: The first transmission mechanism comprises a first motor (31) fixedly connected to the mounting plate (12); an output end of the first motor (31) is fixedly connected to a first rotating shaft (32) via a coupling; a first gear (33) is fixedly sleeved on an outer surface of the first rotating shaft (32); and a second gear (34) fixedly sleeved on an outer surface of the first gear (33) is fixedly sleeved on an outer surface of the first mounting shaft (13).

5. A welding device for steel structure production according to claim 2, characterized in that: The second transmission mechanism comprises a third electric telescopic rod (41) fixedly connected to the mounting frame (14); one end of the third electric telescopic rod (41) is fixedly connected to a transmission rack (42) slidably connected to the mounting frame (14); one side of the transmission rack (42) is meshingly connected to a third gear (43) fixedly sleeved to the second mounting shaft (15).

6. A welding device for steel structure production according to claim 2, characterized in that: The third transmission mechanism comprises a second motor (51) fixedly connected to the mounting plate (190); an output end of the second motor (51) is fixedly connected to a second rotating shaft (52) via a coupling; a fourth gear (53) is fixedly sleeved on an outer surface of the second rotating shaft (52); and an outer surface of the fourth gear (53) is meshingly connected to a fifth gear (54) fixedly sleeved on the third mounting shaft (191).

7. A welding device for steel structure production according to claim 2, characterized in that: The connecting rod feeding mechanism comprises two feeding boxes (61) fixedly connected to the mounting platform (1), and second threaded rods (62) are rotatably connected to both sides of the feeding boxes (61), and the two second threaded rods (62) are connected to each other through a transmission wheel and a transmission belt, and one end of one of the second threaded rods (62) is fixedly connected to a second transmission motor (63) fixedly connected to the feeding box (61) through a coupling, and the outer surface of the second threaded rod (62) is threadedly matched with a push plate (64) slidably connected to the feeding box (61).

8. A welding device for steel structure production according to claim 1, characterized in that: The welding mechanism comprises a mounting frame (71) fixedly connected to a mounting platform (1); a fourth electric telescopic rod (72) is fixedly connected inside the mounting frame (71); a bottom end of the fourth electric telescopic rod (72) is fixedly connected to a mechanical arm (73) via a connecting plate; one end of the mechanical arm (73) is fixedly connected to a welding head (74); and the welding head (74) is connected to a welding machine body.

9. A welding device for steel structure production according to claim 1, characterized in that: The positioning and fixing mechanism comprises a fifth electric telescopic rod (81) fixedly connected to the mounting platform (1); the top end of the fifth electric telescopic rod (81) is fixedly connected to a material discharge tray (82); the top of the material discharge tray (82) is fixedly connected to a plurality of sixth electric telescopic rods (83); one end of the sixth electric telescopic rod (83) is fixedly connected to a second clamping block (84).

10. A welding device for steel structure production according to claim 9, characterized in that: A rubber buffer pad is fixedly connected to one side of the second clamping block (84).

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