Welding process of green building welding ball net rack

Abstract

The invention discloses a welding technology for a green building welding ball net rack, and belongs to the technical field of welding. The green building welding ball net rack comprises a supporting base, and a moving and rotating assembly used for driving welding equipment to move and rotate is arranged on the upper side of the supporting base; an opening assembly used for driving the movable rotating assembly to be opened is arranged on one side of the movable rotating assembly, a fixing unit used for supporting a welding ball net frame is arranged on the upper side of the supporting base, and a welding positioning unit used for conducting positioning welding on the welding ball net frame is arranged on one side of the movable rotating assembly. The welding head can perform continuous and uniform welding operation around each part of the welding ball net rack, so that the welding precision and efficiency are effectively improved, and the welding defects caused by limited welding positions or inconvenient operation are reduced.

Description

Technical Field

[0001] The present invention relates to the field of welding, and particularly to a welding process for a welded spherical grid of a green building. Background Art

[0002] With the wide promotion and application of the concept of green buildings globally, the construction scale of green buildings is expanding day by day, and the demand for welded spherical grids, which are key structural components, is also showing a growing trend. Traditional welding processes for welded spherical grids often have many drawbacks, such as inconvenient movement of welding equipment, difficult precise control of welding angles, poor adaptability to welded spherical grids of different sizes and structures, etc., and it is difficult to meet the requirements of high-quality, high-efficiency, and precise production of welded spherical grids for green buildings. Summary of the Invention

[0003] The purpose of the present invention is to provide a welding process for a welded spherical grid of a green building to solve the problems presented in the above background art during existing welding.

[0004] To achieve the above purpose, the present invention provides the following technical solution: The equipment used in the welding process includes: a support base, on the upper side of which there is a moving and rotating assembly for driving the welding equipment to move and rotate, on one side of the moving and rotating assembly there is an opening assembly for driving the moving and rotating assembly to open, on the upper side of the support base there is a fixing unit for supporting the welded spherical grid, and on one side of the moving and rotating assembly there is a welding positioning unit for positioning and welding the welded spherical grid;

[0005] The moving and rotating assembly includes a moving driving assembly for driving the welding positioning unit to move to the welding position required and a rotating welding driving assembly for adjusting the welding positioning unit to rotate and weld the welded spherical grid;

[0006] As a further preference of this technical solution: The moving driving assembly includes a moving driving motor arranged on the support base, and the output end of the moving driving motor is connected to a moving threaded rod for driving the moving threaded rod to rotate, and the outside of the moving threaded rod is threadedly connected to a moving connecting plate, and at the same time, one side of the moving connecting plate is provided with a first fixed shell;

[0007] As a further preference of this technical solution: The rotating welding driving assembly includes a rotating driving servo motor arranged in a protective shell on the support base, and the output end of the rotating driving servo motor is connected to a rotating driving gear for driving the rotating driving gear to rotate, and on one side of the rotating driving gear there is a driving gear meshed, and on one side of the driving gear there is a gear ring meshed, and on the outside of the gear ring there is a rotating connecting ring, and on the outside of the rotating connecting ring there is an arc-shaped fixed shell, and at the same time, on the inner side of the arc-shaped fixed shell there is a connecting arc-shaped groove;

[0008] As a further optimization of this technical solution: The opening assembly includes a second fixed housing, a transmission rack is arranged inside the second fixed housing, a driven gear is meshed on one side of the transmission rack, and an opening transmission screw rod is fixedly arranged at the middle position of the driven gear. At the same time, an opening transmission thread sleeve is threadedly connected to the outside of the opening transmission screw rod, and one end of the opening transmission thread sleeve far away from the opening transmission screw rod is fixedly arranged at the middle position of one side of the arc-shaped fixed housing. And a flat key is arranged on the outside of the opening transmission thread sleeve for limiting the opening transmission thread sleeve;

[0009] As a further optimization of this technical solution: The welding positioning unit includes a welding connecting rod, one end of the welding connecting rod is connected with a telescopic welding head, the welding positioning unit further includes a hydraulic oil connecting pipe, a spring is slidably connected inside the hydraulic oil connecting pipe, and one end of the spring is connected with a first piston, and the other side of the first piston is connected with a connecting slide rod. At the same time, a ball is rotatably connected to the end of the connecting slide rod far away from the first piston. A second piston is slidably connected inside the hydraulic oil connecting pipe at the end far away from the spring, and a transmission connecting plate is arranged on one side of the second piston, and one end of the transmission connecting plate far away from the second piston is connected to the welding head for driving the welding head to perform synchronous reverse movement through the movement of the connecting slide rod;

[0010] As a further optimization of this technical solution: The fixing unit includes a fixing plate arranged on the support base, a fixing screw rod is threadedly connected to the fixing plate, one end of the fixing screw rod is fixedly provided with a connecting shaft, and a connecting cylinder is rotatably attached to the outside of the connecting shaft. And a fixing disc attached to the welding ball is fixedly arranged on one side of the connecting cylinder;

[0011] As a further optimization of this technical solution: The welding process includes the following steps:

[0012] Step 1: Feeding, place the welding ball between two groups of fixing units, fix the welding ball through the two groups of fixing units provided, and at the same time pass the grid through the two arc-shaped fixed housings and abut against one side of the welding ball;

[0013] Step 2: Docking, start the moving drive motor to drive the moving connecting plate to move, drive the two arc-shaped fixed housings to perform docking operations through the fixing unit, and at the same time drive the transmission gear to be meshed with the rotation drive gear;

[0014] Step 3: Positioning, squeeze the ball through the grid, drive the welding head to be positioned downward to the specific height to be welded;

[0015] Step 4: Welding. Start the rotary drive servo motor to drive the rotary drive gear to rotate, driving the two groups of arc-shaped fixed shells to rotate annularly in the connecting arc grooves, driving the welding positioning unit to perform annular welding operations on the connection points of the welded spherical grid.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, through the synergistic action of the moving and rotating components and the welding positioning unit, precise movement and multi-angle rotary welding of the welding equipment can be achieved. The moving drive motor drives the moving threaded rod to move the moving connecting plate, thereby driving the welding positioning unit to move to the required welding position. At the same time, the rotary drive servo motor drives transmission components such as the rotary drive gear, enabling the welding positioning unit to perform annular movement, so that the welding head can perform continuous and uniform welding operations around various parts of the welded spherical grid, effectively improving the welding accuracy and efficiency, and reducing welding defects caused by limited welding positions or inconvenient operations;

[0018] 2. In the present invention, after the grid passes through the middle of the two groups of arc-shaped fixed shells, the balls are extruded by the outside of the grid, driving the movement of components such as the connecting slide rod and the first piston, enabling the welding head to automatically adjust downward to a suitable welding height according to the size of the grid, without the need for manual frequent adjustment of the welding height, and can adapt to welded spherical grids of different size specifications; the opening and closing assembly can drive the two groups of arc-shaped fixed shells, the rotary connecting ring and the gear ring to perform splicing or separation operations, facilitating the positioning and fixing of welded spherical grids with different structural forms and welding operations. Whether it is a simple or complex welded spherical grid structure, this welding process technical solution can better meet its welding requirements, broadening its application scope for various welded spherical grids in the field of green buildings;

[0019] 3. In the present invention, the welded ball is reliably clamped and fixed by components such as the fixed threaded rod, the connecting shaft, the connecting cylinder and the fixed disk, preventing the welded ball from shifting or shaking during the welding process, ensuring the safe and stable progress of the welding operation. At the same time, the entire welding process is operated by drive components such as the moving drive motor and the rotary drive servo motor according to a preset program, avoiding potential safety hazards caused by manual operation, and reducing the labor intensity and risk of operators. Description of the Drawings

[0020] Figure 1 is a structural schematic diagram of a welding process for a welded spherical grid of a green building in the present invention Figure 1 ;

[0021] Figure 2 is a structural schematic diagram of a welding process for a welded spherical grid of a green building in the present invention Figure 2 ;

[0022] Figure 3 Partial structural schematic of the welding process for a welded spherical grid in a green building according to the present invention Figure 1 ;

[0023] Figure 4 Schematic diagram of the meshing structure of the welding process for a welded spherical grid in a green building according to the present invention;

[0024] Figure 5 Schematic diagram of the opening structure of the welding process for a welded spherical grid in a green building according to the present invention;

[0025] Figure 6 Explosion schematic of the partial structure of the welding process for a welded spherical grid in a green building according to the present invention Figure 1 ;

[0026] Figure 7 Explosion schematic of the partial structure of the welding process for a welded spherical grid in a green building according to the present invention Figure 2 ;

[0027] Figure 8 Partial structural cross - sectional view of the welding process for a welded spherical grid in a green building according to the present invention;

[0028] Figure 9 Explosion schematic of the partial structure of the welding process for a welded spherical grid in a green building according to the present invention Figure 3 。

[0029] In the figure: 1. Support base;

[0030] 2. Moving and rotating assembly;

[0031] Moving drive assembly: 201. Moving drive motor; 202. Moving threaded rod; 203. Moving connecting plate; 204. First fixed shell;

[0032] Rotating welding drive assembly: 205. Rotating drive servo motor; 206. Rotating drive gear; 207. Transmission gear; 208. Gear ring; 209. Rotating connection ring; 210. Arc - shaped fixed shell; 211. Connecting arc groove; 212. Connecting push block;

[0033] 3. Opening assembly; 301. Second fixed shell; 302. Transmission rack; 303. Driven gear; 304. Opening drive threaded rod; 305. Opening drive threaded sleeve; 306. Flat key;

[0034] 4. Fixing unit; 401. Fixing plate; 402. Fixing threaded rod; 403. Connecting shaft; 404. Connecting cylinder; 405. Fixing disk;

[0035] 5. Welding positioning unit; 501. Welding connecting rod; 502. Welding head; 503. Hydraulic oil connecting pipe; 504. Spring; 505. First piston; 506. Connecting slide bar; 507. Ball; 508. Second piston; 509. Transmission connecting rod.

[0036] Specific implementation of the transmission connecting plate

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention. Embodiment

[0038] Please refer to Figures 1 - 9 As shown in the figure, the present invention provides a welding process technical solution for a welded spherical grid of a green building: The equipment used in the welding process includes: a support base 1, a moving and rotating assembly 2 is arranged on the upper side of the support base 1 for driving the movement and rotation of the welding equipment, an opening assembly 3 for driving the opening of the moving and rotating assembly 2 is arranged on one side of the moving and rotating assembly 2, a fixing unit 4 for supporting the welded spherical grid is arranged on the upper side of the support base 1, and a welding positioning unit 5 for positioning and welding the welded spherical grid is arranged on one side of the moving and rotating assembly 2;

[0039] The moving and rotating assembly 2 includes a moving driving assembly for driving the welding positioning unit 5 to move to the welding position required and a rotating welding driving assembly for adjusting the rotation welding of the welding positioning unit 5 to the welded spherical grid.

[0040] In this embodiment, the moving driving assembly includes a moving driving motor 201 arranged on the support base 1, and the output end of the moving driving motor 201 is connected to a moving threaded rod 202. The moving threaded rod 202 passes through a support plate arranged on the support base 1 to drive the rotation of the moving threaded rod 202. And a moving connecting plate 203 is threadedly connected to the outer side of the moving threaded rod 202. The moving threaded rod 202 is arranged through the middle position of the moving connecting plate 203. At the same time, a first fixed shell 204 is arranged on one side of the moving connecting plate 203, and both ends of the first fixed shell 204 are slidably connected through the limiting slide rods arranged on the support base 1.

[0041] In this embodiment, the rotary welding drive assembly includes a rotary drive servo motor 205 disposed in a protective housing on the support base 1. The output end of the rotary drive servo motor 205 is connected to a rotary drive gear 206. The rotary drive gear 206 is rotatably connected to the inner side of the protective housing and is used to drive the rotary drive gear 206 to rotate. On one side of the rotary drive gear 206, a transmission gear 207 is meshed. The transmission gear 207 is rotatably connected to the inner side of the first fixed housing 204. At the same time, on one side of the transmission gear 207, a gear ring 208 is meshed. On the outer side of the gear ring 208, a rotary connection ring 209 is provided. On the outer side of the rotary connection ring 209, an arc-shaped fixed housing 210 is provided. At the same time, on the inner side of the arc-shaped fixed housing 210, a connecting arc-shaped groove 211 is provided. The rotary connection ring 209 and the gear ring 208 are respectively fitted and rotated in the connecting arc-shaped groove 211. On one side of the gear ring 208, a connecting push block 212 is provided. One end of the connecting push block 212 penetrates and slides inside another gear ring 208, and is used to make the two gear rings 208 move synchronously.

[0042] Specifically: The arc-shaped fixed housing 210 is fixedly arranged on one side of the first fixed housing 204. There are two arc-shaped fixed housings 210 and they are symmetrically arranged. There are two gear rings 208 and two rotary connection rings 209, and they are symmetrically arranged in the two arc-shaped fixed housings 210 respectively.

[0043] Specifically: The transmission gear 207 is driven by the moving drive assembly to be meshed with the rotary drive gear 206. The driven gear 303 is driven by the moving drive assembly to be meshed with the transmission rack 302.

[0044] In this embodiment, specifically: The opening assembly 3 includes a second fixed housing 301 arranged on the support base 1. Inside the second fixed housing 301, a transmission rack 302 is arranged. On one side of the transmission rack 302, a driven gear 303 is meshed. At the middle position of the driven gear 303, an opening drive threaded rod 304 is fixedly arranged. At the same time, an opening drive threaded sleeve 305 is threadedly connected to the outer side of the opening drive threaded rod 304. The end of the opening drive threaded sleeve 305 far from the opening drive threaded rod 304 is fixedly arranged at the middle position on one side of the arc-shaped fixed housing 210. At the same time, a flat key 306 is arranged on the outer side of the opening drive threaded sleeve 305 for performing a limiting operation on the opening drive threaded sleeve 305. The opening drive threaded sleeve 305 and the flat key 306 penetrate and slide through an extension plate arranged at the end of the moving connection plate 203 far from the first fixed housing 204.

[0045] Specifically, a connecting rotating shaft arranged on the side of the driven gear 303 far from the opening drive threaded rod 304 rotates and slides in a groove provided on the second fixed housing 301, and is used to perform a limiting operation on the opening drive threaded rod 304.

[0046] In this embodiment, the welding positioning unit 5 includes a welding connecting rod 501 fixedly arranged inside the rotary connecting ring 209. One end of the welding connecting rod 501 is connected with a telescopic welding head 502. The welding positioning unit 5 further includes a hydraulic oil connecting pipe 503 fixedly arranged inside the rotary connecting ring 209. A spring 504 is slidably connected inside the hydraulic oil connecting pipe 503. One end of the spring 504 is connected with a first piston 505, and the other end of the spring 504 is fixedly connected to the upper side of the first piston 505. The first piston 505 fits and slides inside the hydraulic oil connecting pipe 503. And the other side of the first piston 505 is connected with a connecting slide rod 506. The connecting slide rod 506 fits and penetrates through and slides inside the hydraulic oil connecting pipe 503. At the same time, one end of the connecting slide rod 506 far from the first piston 505 is rotatably connected with a ball 507. The outer side of the ball 507 fits and slides on the surface of the grid frame. A second piston 508 is slidably connected to the inner side of the hydraulic oil connecting pipe 503 at the end far from the spring 504. And a transmission connecting plate 509 is arranged on one side of the second piston 508. The transmission connecting plate 509 penetrates and slides through the end of the hydraulic oil connecting pipe 503 far from the connecting slide rod 506. And the end of the transmission connecting plate 509 far from the second piston 508 is connected to the welding head 502, and is used to drive the welding head 502 to perform synchronous reverse movement through the movement of the connecting slide rod 506.

[0047] In this embodiment, the fixing unit 4 includes a fixing plate 401 arranged on the support base 1. A fixing threaded rod 402 is threadedly connected to the fixing plate 401. One end of the fixing threaded rod 402 is fixedly provided with a connecting shaft 403. And a connecting cylinder 404 is rotatably arranged in a fitting manner on the outer side of the connecting shaft 403. And a fixing disc 405 fitting to the welding ball is fixedly arranged on one side of the connecting cylinder 404. At the same time, two groups of fixing discs 405 are provided for fixing the welding ball.

[0048] The welding process includes the following steps:

[0049] Step 1: Feeding. Place the welding ball between the two groups of fixing units 4, and perform the fixing operation on the welding ball through the two groups of fixing units 4 arranged. At the same time, pass the grid frame through the two arc-shaped fixing shells 210 and abut against one side of the welding ball;

[0050] Step 2: Docking. Start the moving drive motor 201 to drive the moving connecting plate 203 to move, drive the two arc-shaped fixing shells 210 to perform the docking operation through the fixing unit 4, and at the same time drive the transmission gear 207 to be meshed with the rotary drive gear 206;

[0051] Step 3: Positioning. Squeeze the ball 507 through the grid frame, and drive the welding head 502 to be positioned downward to the specific height to be welded;

[0052] Step 4: Welding. Start the rotary drive servo motor 205 to drive the rotary drive gear 206 to rotate, drive the two groups of arc-shaped fixed shells 210 to rotate annularly in the connecting arc-shaped groove 211, and drive the welding positioning unit 5 to perform annular welding operations on the connection points of the welded spherical grid.

[0053] Working principle or structural principle: First, place the welded ball between the two groups of fixing units 4. By rotating, the rotating knob provided at one end of the fixing screw rod 402 drives the fixing screw rod 402 to rotate on the fixing plate 401. At the same time, the connecting shaft 403 rotates in the connecting cylinder 404. Since the fixing screw rod 402 is threadedly connected to the fixing plate 401, the fixing screw rod 402 can move in the direction of the fixing disk 405. The fixing screw rod 402 drives the connecting shaft 403 to move, and the connecting shaft 403 pushes the connecting cylinder 404 and the fixing disk 405 to move. The two sets of fixing disks 405 provided are used to clamp and fix the welded ball.

[0054] Pass the grid through the middle of the two groups of arc-shaped fixed shells 210. At the same time, the ball bearings 507 fit against the outer side of the grid. The outer side of the grid squeezes the ball bearings 507, driving the connecting slide rod 506 and the first piston 505 to move upward. At the same time, the first piston 505 squeezes the spring 504 upward. At the same time, the first piston 505 squeezes the hydraulic oil in the hydraulic oil connecting pipe 503 upward, driving the second piston 508 to move downward. The transmission connecting plate 509 drives the welding head 502 to move downward. In this way, the welding head 502 can move downward according to the size of the grid and move to the specified welding height.

[0055] Start the moving drive motor 201 to drive the moving screw rod 202 to rotate, and drive the moving connecting plate 203 to move in the direction of the welded ball. At the same time, drive the driven gear 303 to rotate through the transmission rack 302, drive the opening drive screw rod 304 to rotate. At the same time, the connecting rotating shaft provided on the side of the driven gear 303 away from the opening drive screw rod 304 rotates and slides in the groove provided on the second fixed shell 301 for limiting the opening drive screw rod 304. The rotation of the opening drive screw rod 304 drives the opening drive screw sleeve 305 to move in the direction of the arc-shaped fixed shell 210, and at the same time pushes a group of arc-shaped fixed shells 210 to move in the direction of the first fixed shell 204, so that the two groups of arc-shaped fixed shells 210 are spliced. At the same time, the connecting push block 212 slides into the inner side of another gear ring 208, and the splicing operations of the two groups of arc-shaped fixed shells 210, the rotary connecting ring 209 and the gear ring 208 can be realized.

[0056] While the moving threaded rod 202 continues to drive the moving connecting plate 203 to move, it also continues to drive the opening transmission threaded rod 304 to move, so that the driven gear 303 can be separated from the transmission rack 302. At the same time, the transmission gear 207 moves to a position meshing with the rotary drive gear 206, and the welding head 502 moves to the specified welding position;

[0057] Start the welding head 502, control the start of the rotary drive servo motor 205 through the control unit, drive the rotary drive gear 206 to rotate, and at the same time drive the transmission gear 207 to rotate. Drive the gear ring 208 and the rotary connection ring 209 to perform a circular rotation operation in the connection arc groove 211 through the transmission gear 207, and at the same time drive the welding positioning unit 5 to perform a circular motion, so that circular welding can be carried out. Control the rotary drive servo motor 205 through the control unit to drive the gear ring 208 to rotate forward one week, and then rotate reversely to the original position. When rotating reversely, turn off the welding head 502, so that the welding positioning unit 5 can perform circular welding operations;

[0058] After welding is completed, start the moving drive motor 201 to drive the moving threaded rod 202 to rotate reversely, so that the driven gear 303 meshes with the transmission rack 302 again, so that the opening transmission threaded rod 304 moves reversely. At the same time, the two arc-shaped fixed shells 210, the rotary connection ring 209 and the gear ring 208 can be separated. At the same time, the rotary drive gear 206 and the transmission gear 207 are separated. By rotating the fixed threaded rod 402 reversely, the fixed disk 405 and the welding ball are loosened, so that the grid can be lifted upward. At the same time, the welding ball rotates between the two fixed disks 405, and the grid flips upward from between the two arc-shaped fixed shells 210 to replace the other side for welding operations.

[0059] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding process for a welded spherical grid of a green building, characterized in that: The equipment used in the welding process includes: a support base (1). On the upper side of the support base (1), there is a moving and rotating assembly (2) for driving the welding equipment to move and rotate. On one side of the moving and rotating assembly (2), there is an opening assembly (3) for driving the moving and rotating assembly (2) to open. On the upper side of the support base (1), there is a fixing unit (4) for supporting the welded spherical grid. On one side of the moving and rotating assembly (2), there is a welding positioning unit (5) for positioning and welding the welded spherical grid. The moving and rotating assembly (2) includes a moving drive assembly for driving the welding positioning unit (5) to move to the welding position required and a rotating welding drive assembly for adjusting the welding positioning unit (5) to rotate and weld the welded spherical grid.

2. The welding process of a green building welded spherical grid according to claim 1, characterized in that: The moving drive assembly includes a moving drive motor (201) arranged on the support base (1). The output end of the moving drive motor (201) is connected to a moving threaded rod (202) for driving the moving threaded rod (202) to rotate. The outer side of the moving threaded rod (202) is threadedly connected to a moving connecting plate (203). At the same time, a first fixed shell (204) is arranged on one side of the moving connecting plate (203).

3. The welding process of a welded spherical grid for a green building according to claim 2, characterized in that: The rotating welding drive assembly includes a rotating drive servo motor (205) arranged in a protective shell on the support base (1). The output end of the rotating drive servo motor (205) is connected to a rotating drive gear (206) for driving the rotating drive gear (206) to rotate. On one side of the rotating drive gear (206), there is a transmission gear (207) engaged. On one side of the transmission gear (207), there is a gear ring (208) engaged. The outer side of the gear ring (208) is provided with a rotating connecting ring (209). The outer side of the rotating connecting ring (209) is provided with an arc-shaped fixed shell (210). At the same time, a connecting arc-shaped groove (211) is arranged on the inner side of the arc-shaped fixed shell (210).

4. The welding process of a green building welded spherical grid according to claim 3, characterized in that: The opening assembly (3) includes a second fixed shell (301). On the inner side of the second fixed shell (301), there is a transmission rack (302). On one side of the transmission rack (302), there is a driven gear (303) engaged. In the middle position of the driven gear (303), there is an opening drive threaded rod (304) fixedly arranged. The outer side of the opening drive threaded rod (304) is threadedly connected to an opening drive threaded sleeve (305). The end of the opening drive threaded sleeve (305) far from the opening drive threaded rod (304) is fixedly arranged at the middle position on one side of the arc-shaped fixed shell (210). At the same time, a flat key (306) is arranged on the outer side of the opening drive threaded sleeve (305) for limiting the opening drive threaded sleeve (305).

5. The welding process of a welded spherical grid for a green building according to claim 4, characterized in that: The welding positioning unit (5) includes a welding connecting rod (501). One end of the welding connecting rod (501) is connected to a telescopic welding head (502). The welding positioning unit (5) further includes a hydraulic oil connecting pipe (503). A spring (504) is slidably connected inside the hydraulic oil connecting pipe (503). One end of the spring (504) is connected to a first piston (505). The other side of the first piston (505) is connected to a connecting slide rod (506). At the same time, a ball (507) is rotatably connected to the end of the connecting slide rod (506) away from the first piston (505). A second piston (508) is slidably connected inside the end of the hydraulic oil connecting pipe (503) away from the spring (504). One side of the second piston (508) is provided with a transmission connecting plate (509). The end of the transmission connecting plate (509) away from the second piston (508) is connected to the welding head (502), and is used to drive the welding head (502) to perform synchronous reverse movement through the movement of the connecting slide rod (506).

6. The welding process of a green building welded spherical grid according to claim 5, characterized in that: The fixing unit (4) includes a fixing plate (401) arranged on the support base (1). A fixing threaded rod (402) is threadedly connected to the fixing plate (401). One end of the fixing threaded rod (402) is fixedly provided with a connecting shaft (403). A connecting cylinder (404) is rotatably attached to the outside of the connecting shaft (403). A fixing disk (405) fitting the welding ball is fixedly provided on one side of the connecting cylinder (404).

7. The welding process of a welded spherical grid for a green building according to claim 6, characterized in that: The welding process includes the following steps: Step 1: Feeding. Place the welding ball between the two fixing units (4), and fix the welding ball through the two set fixing units (4). At the same time, pass the grid through the two arc-shaped fixing shells (210) and abut against one side of the welding ball. Step 2: Docking. Start the moving drive motor (201) to drive the moving connecting plate (203) to move, drive the two arc-shaped fixing shells (210) to perform docking operations through the fixing unit (4), and at the same time drive the transmission gear (207) to mesh with the rotation drive gear (206). Step 3: Positioning. Squeeze the ball (507) through the grid, and drive the welding head (502) to be positioned downward to the specific height where welding is required. Step 4: Welding. Start the rotation drive servo motor (205) to drive the rotation drive gear (206) to rotate, drive the two arc-shaped fixing shells (210) to rotate annularly in the connecting arc groove (211), and drive the welding positioning unit (5) to perform annular welding operations on the connection points of the welding ball grid.

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