Box girder mesh splicing equipment and method capable of adjusting angle in air

Abstract

The invention discloses a box girder mesh splicing device and method capable of adjusting the angle in the air. In addition, the output end of a second servo motor is connected to a swing frame, a containing disc is arranged on the swing frame, a limiting rod is connected to the containing disc in a sliding mode, and a rotating rod is arranged in the input direction of the limiting rod. A moving table is arranged on a portal frame, the moving table can be controlled by a first servo motor to move up and down, a swing frame on the moving table can be adjusted along with the moving table, a moving groove is formed in the swing frame, a rotating wheel is installed in the moving groove, and the rotating wheel is arranged on a pushing frame of a second servo motor; after a second servo motor controls a push frame to swing, a rotating wheel can move along a moving groove, a swing frame can be pushed to swing in the moving process, the angle of the swing frame can be adjusted, a containing disc is arranged on the swing frame, a mesh can be borne on the containing disc, and the angle of the mesh can be adjusted along with the swing frame.

Description

Technical Field

[0001] The present application relates to the technical field of mesh assembly, and in particular to a box girder mesh assembly device and method capable of adjusting the angle in the air. Background Art

[0002] The box girder is a common structural form in bridge engineering, and its cross-section includes a top plate, a web, a bottom plate, a flange plate and a cavity.

[0003] When assembling the box girder, it is necessary to weld each part in zones at the same time. After welding into a mesh, it is gradually assembled. When assembling the mesh, a lifting tool is required to lift the mesh to the assembly position. However, the lifting tool can only realize the lifting and lowering of the mesh and cannot adjust the angle of the mesh. After the mesh is lifted to the assembly position, the angle of the mesh still needs to be adjusted separately by a machine or manually. This method reduces the efficiency of box girder assembly welding. Summary of the Invention

[0004] One of the purposes of the present application is to provide a box girder mesh assembly device and method capable of adjusting the angle in the air.

[0005] To achieve the above object, the technical solution adopted by the present application is: a box girder mesh assembly device capable of adjusting the angle in the air, including a gantry and walking wheels. A moving platform is connected to the gantry in a lifting manner. A swing frame is arranged on one side of the moving platform, and a second servo motor is arranged on the other side of the moving platform. The output end of the second servo motor is connected to the swing frame. A placement plate is arranged on the swing frame. A limiting rod is slidably connected to the placement plate. A rotating rod is arranged in the input direction of the limiting rod.

[0006] Preferably, a guide rod and a screw rod are arranged on the gantry. The screw rod and the guide rod are respectively arranged on the moving platform. A first servo motor is connected to the screw rod. The first servo motor is arranged on the gantry. The screw rod and the guide rod are both vertically arranged on the gantry and are parallel to each other.

[0007] Preferably, a lock plate is welded at the connection between the moving platform and the swing frame. The lock plate is integrally arranged in a disc shape. A lock opening is formed on the side edge of the lock plate. The lock opening is formed along the circumference of the lock plate. The lock plate and the swing frame are coaxially arranged. The swing frame is integrally arranged in a straight shape.

[0008] Preferably, a cylinder is arranged on the moving platform. A lock rod is arranged at the output end of the cylinder. A fixed seat is arranged on the moving platform in the moving direction of the lock rod. The lock rod is slidably connected to the fixed seat of the moving platform. The fixed seat is integrally arranged in a rectangular shape. The lock rod is connected through the fixed seat.

[0009] Preferably, a limiting rod is slidably connected to the placing disc. The limiting rod penetrates and is connected to the placing disc. A corresponding connecting seat is welded to one end of the limiting rod. The limiting rods are arranged in a circle around the placing disc. The connecting seat is integrally disc-shaped, and the diameter of the connecting seat is smaller than that of the placing disc.

[0010] Preferably, a return spring is sleeved on the limiting rod between the placing disc and the connecting seat. One end of the return spring is hooked to the placing disc, and the other end of the return spring is hooked to the connecting seat.

[0011] Preferably, a side frame is welded to the connecting seat. The side frame is integrally L-shaped. A top frame is welded to the side frame. The top frame is integrally L-shaped. One end of the top frame faces the swing frame.

[0012] Preferably, a moving groove is formed in the swing frame. A runner is slidably connected in the moving groove. The runner is rotatably connected to a pushing frame. The pushing frame is arranged on a second servo motor.

[0013] Preferably, a vertical groove is formed in the swing frame. A rotating rod is rotatably connected in the vertical groove. Inner wheels and outer wheels are respectively welded to both ends of the rotating rod. The inner wheels are located in the moving groove, and the outer wheels are lapped under the top frame.

[0014] To achieve the above object, another technical solution adopted by this application is: a use method of a box girder mesh assembling device capable of adjusting the angle in the air, including the following steps:

[0015] S1: The gantry moves along the assembling direction of the box girder through the traveling wheels. The swing frame swings towards the side of the box girder. The placing disc on the swing frame can carry the mesh hoisted over. The first servo motor and the second servo motor are controlled to rotate according to the assembling position and assembling angle of the box girder mesh.

[0016] S2: When the first servo motor drives the screw rod to rotate, the height of the moving platform will be adjusted. When the second servo motor drives the push rod to rotate, the angle of the swing frame will be adjusted. When the push rod pushes the swing frame to rotate, the runner on the push rod will move in the moving groove. When moving, it will push the inner wheel, and the outer wheel will push the connecting seat outwards. The limiting rod can extend out of the placing disc, and the mesh will be restricted by the limiting rod and will not slide. The mesh will not be random after the angle is adjusted, which is convenient for the staff to adjust the mesh before assembling the mesh.

[0017] Compared with the prior art, the beneficial effects of this application are as follows:

[0018] The box girder mesh assembling device and method capable of adjusting the angle in the air. By setting a moving platform on the gantry, the first servo motor can control the height of the moving platform, and the swing frame on the moving platform can follow the moving platform for height adjustment. A moving groove is provided on the swing frame, and a runner is installed in the moving groove. The second servo motor can control the pushing frame to move the runner along the moving groove, and the pushing frame can push the swing frame to rotate, so that the swing frame can realize the angle adjustment. The mesh on the swing frame can follow the swing frame for angle adjustment. When the placing plate is placed horizontally, the limiting rod is located inside the placing plate. As the swing frame adjusts the angle, the limiting rod will extend out of the placing plate, and the limiting rod will be inserted into the binding space of the mesh. When the mesh follows the swing frame for angle adjustment, it will not slip, so as to ensure that the staff can adjust the assembling position of the mesh and then carry out welding, so as to meet the working requirements and improve the assembling efficiency.

[0019] The box girder mesh assembling device and method capable of adjusting the angle in the air. By setting a cylinder on the moving platform, a locking rod can be installed on the cylinder. The cylinder can drive the locking rod to move up and down. A locking disc is provided in the upward direction of the locking rod. The locking disc is arranged on the swing frame, and the swing frame will rotate simultaneously with the locking disc. After the angle of the swing frame is adjusted, the locking opening on the locking disc will correspond to the position of the locking rod. Inserting the locking rod into the locking opening will limit the whole locking disc. After the locking disc is stable, the swing frame will also be stable, and the swing frame will not move randomly, so as to prevent the swing frame from rotating automatically due to the weight of the mesh after the angle adjustment, so as to ensure the stability of the swing frame after adjustment, and the angle of the mesh can also be stable after adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the overall structure of the present invention Figure 1 。

[0021] Figure 2 Schematic diagram of the overall structure of the present invention Figure 2 。

[0022] Figure 3 Schematic diagram of the structure of the vertical groove in the present invention.

[0023] Figure 4 Schematic diagram of the structure of the limiting rod in the present invention.

[0024] Figure 5 For the present invention Figure 2 Enlarged schematic diagram of the structure of area A.

[0025] Figure 6 For the present invention Figure 3 Enlarged schematic diagram of the structure of area B.

[0026] Figure 7 For the present invention Figure 4 Enlarged schematic diagram of the structure of area C.

[0027] In the figure: 1, gantry; 2, placing tray; 3, moving platform; 4, walking wheel; 5, first servo motor; 6, screw rod; 7, guide rod; 8, cylinder; 9, fixed seat; 10, locking rod; 11, swing frame; 12, moving groove; 13, inner wheel; 14, rotating rod; 15, locking disc; 16, outer wheel; 17, locking opening; 18, vertical groove; 19, connecting seat; 20, return spring; 21, side frame; 22, top frame; 23, limiting rod; 24, rotating wheel; 25, pushing frame; 26, second servo motor. Specific embodiments

[0028] Next, in combination with specific embodiments, the present application will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0029] In the description of the present application, it should be noted that for orientation terms, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and position relationship are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present application.

[0030] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and do not necessarily describe a specific order or sequence.

[0031] Such as Figures 1 to 7As shown in the figure, the present invention provides a box girder mesh assembling device capable of adjusting the aerial angle, which includes a gantry 1 and traveling wheels 4. A moving platform 3 is connected to the gantry 1 in a lifting manner. A swing frame 11 is arranged on one side of the moving platform 3, and a second servo motor 26 is arranged on the other side of the moving platform 3. The output end of the second servo motor 26 is connected to the swing frame 11. A placing disc 2 is arranged on the swing frame 11. A limiting rod 23 is slidably connected to the placing disc 2. A rotating rod 14 is arranged in the input direction of the limiting rod 23. By arranging the moving platform 3 on the gantry 1, the moving platform 3 can move up and down under the control of the first servo motor 5. The swing frame 11 on the moving platform 3 can follow the moving platform 3 for adjustment. A moving groove 12 is arranged on the swing frame 11. A runner 24 is installed in the moving groove 12. The runner 24 is arranged on the push frame 25 of the second servo motor 26. After the second servo motor 26 controls the push frame 25 to swing, the runner 24 will move along the moving groove 12. During the moving process, the swing frame 11 will be pushed to swing, and the angle of the swing frame 11 can be adjusted. A placing disc 2 is arranged on the swing frame 11, and the mesh can be carried on the placing disc 2, and the mesh can follow the swing frame 11 for angle adjustment;

[0032] During the adjustment process, the runner 24 pushes against the inner wheel 13 in the moving groove 12, and the rotating rod 14 on the inner wheel 13 will rotate. The rotating rod 14 will swing in the vertical groove 18. An outer wheel 16 is arranged on the rotating rod 14 outside the swing frame 11, and the outer wheel 16 will move towards the position of the placing disc 2. During the moving process of the outer wheel 16, it will push the top frame 22. The top frame 22 is connected to the connecting seat 19. A limiting rod 23 is arranged on the connecting seat 19, and the limiting rod 23 can extend outwards along the placing disc 2 towards the outside of the placing disc 2, so as to insert into the binding space of the mesh, thereby restricting the mesh. After the swing frame 11 drives the mesh to adjust the angle, it will not slip, which is convenient for the staff to adjust the mesh and facilitates assembling and welding, so as to meet the use requirements and improve production efficiency.

[0033] A guide rod 7 and a screw rod 6 are arranged on the gantry 1. The screw rod 6 and the guide rod 7 are respectively arranged on the moving platform 3. The screw rod 6 is connected to a first servo motor 5. The first servo motor 5 is arranged on the gantry 1. The screw rod 6 and the guide rod 7 are both vertically arranged on the gantry 1, and the screw rod 6 and the guide rod 7 are parallel to each other. By means of the guide rod 7, the moving platform 3 can be restricted, and the moving platform 3 will move up and down along the gantry 1. When the screw rod 6 is connected to the moving platform 3, the moving platform 3 will be driven by the screw rod 6 to move up and down, so as to change the height of the moving platform 3, thereby driving the whole swing frame 11 to move, and the vertical height of the swing frame 11 can be adjusted, so that the angle during the mesh adjustment is more accurate.

[0034] A lock plate 15 is welded at the connection between the mobile station 3 and the swing frame 11. The lock plate 15 is integrally arranged in a disc shape. A lock opening 17 is formed on the side edge of the lock plate 15. The lock opening 17 is arranged along the circumference of the lock plate 15. The lock plate 15 and the swing frame 11 are coaxially arranged. The swing frame 11 is integrally arranged in a straight shape. By welding the lock plate 15 on the swing frame 11, the lock plate 15 can rotate along with the swing frame 11, and the adjusted angles of the lock plate 15 and the swing frame 11 will be the same. After the swing frame 11 is adjusted, the lock plate 15 can be locked, and the adjusted angle of the swing frame 11 can be more stable. The swing frame 11 will not rotate easily, so as to ensure the fixed position of the swing frame 11 and the stable adjusted position of the mesh sheet.

[0035] In implementation, by arranging the mobile station 3 on the gantry 1, the first servo motor 5 can control the height of the mobile station 3, and the swing frame 11 on the mobile station 3 can follow the mobile station 3 for height adjustment. A moving groove 12 is formed on the swing frame 11, and a runner 24 is installed in the moving groove 12. The second servo motor 26 can control the push frame 25 to make the runner 24 move along the moving groove 12, and the push frame 25 can push the swing frame 11 to rotate, so that the swing frame 11 can realize angle adjustment. The mesh sheet on the swing frame 11 can follow the swing frame 11 for angle adjustment. When the placing plate 2 is placed horizontally, the limiting rod 23 is located in the placing plate 2. As the angle of the swing frame 11 is adjusted, the limiting rod 23 will extend out of the placing plate 2, and the limiting rod 23 will be inserted into the binding space of the mesh sheet. When the mesh sheet follows the swing frame 11 for angle adjustment, it will not slide off, so as to ensure that the staff can adjust the assembling position of the mesh sheet and then carry out welding, so as to meet the work requirements and improve the assembling efficiency.

[0036] A cylinder 8 is arranged on the mobile station 3. A lock rod 10 is arranged at the output end head of the cylinder 8. A fixed seat 9 is arranged on the mobile station 3 in the moving direction of the lock rod 10. The lock rod 10 is slidably connected to the fixed seat 9 of the mobile station 3. The fixed seat 9 is integrally arranged in a rectangular shape. The lock rod 10 is connected through the fixed seat 9. Through the connection between the cylinder 8 and the lock rod 10, the lock rod 10 can be independently controlled by the cylinder 8. Before the swing frame 11 is adjusted, the cylinder 8 can drive the lock rod 10 to pull out of the lock plate 15. After the swing frame 11 is adjusted, the cylinder 8 drives the lock rod 10 to insert into the lock plate 15, and the position of the swing frame 11 can be restricted, so that it will not move.

[0037] A limiting rod 23 is slidably connected to the placing disc 2. The limiting rod 23 is connected through the placing disc 2. A corresponding connecting seat 19 is welded to one end of the limiting rod 23. The limiting rod 23 is arranged around the placing disc 2 in a circle. The connecting seat 19 is integrally arranged in a disc shape, and the diameter of the connecting seat 19 is smaller than the diameter of the placing disc 2. By installing the limiting rod 23 on the placing disc 2, the mesh can be restricted. The limiting rod 23 is welded to the connecting seat 19, and the connecting seat 19 can drive the limiting rod 23 to extend or retract from the placing disc 2.

[0038] A return spring 20 is sleeved on the limiting rod 23 between the placing disc 2 and the connecting seat 19. One end of the return spring 20 is hooked on the placing disc 2, and the other end of the return spring 20 is hooked on the connecting seat 19. By sleeving the return spring 20 on the limiting rod 23, the limiting rod 23 can be driven to move in the reverse direction. After the limiting rod 23 is pushed, it extends from the placing disc 2. When the limiting rod 23 is not pushed, the return spring 20 will push the connecting seat 19 to retract the limiting rod 23 into the placing disc 2. The placing disc 2 can facilitate the re - placement of the mesh. When the limiting rod 23 does not continuously extend outside the placing disc 2, it can prevent the mesh from being placed smoothly.

[0039] A side frame 21 is welded to the connecting seat 19. The side frame 21 is integrally arranged in an L - shape. A top frame 22 is welded to the side frame 21. The top frame 22 is integrally arranged in an L - shape, and one end of the top frame 22 faces the swing frame 11. By welding the side frame 21 to the connecting seat 19, the side frame 21 can be connected to the top frame 22, and the top frame 22 can be arranged on the side of the swing frame 11, thus preventing it from affecting the movement of the runner 24 in the moving groove 12. The top frame 22 can move after being pushed by the outer wheel 16, thereby driving the connecting seat 19 to move.

[0040] A moving groove 12 is formed in the swing frame 11. A runner 24 is slidably connected in the moving groove 12. The runner 24 is rotatably connected to a push frame 25, and the push frame 25 is arranged on a second servo - motor 26. Through the moving groove 12, the guiding of the runner 24 can be realized. After the runner 24 is driven by the push frame 25, it will move in the moving groove 12, thereby driving the swing frame 11 to swing during the movement, so as to realize the angle adjustment. When the runner 24 moves in the moving groove 12, it will also push the inner wheel 13, so that the outer wheel 16 can swing.

[0041] A vertical groove 18 is formed in the swing frame 11. A rotating rod 14 is rotatably connected in the vertical groove 18. Inner wheels 13 and outer wheels 16 are respectively welded to both ends of the rotating rod 14. The inner wheel 13 is located in the moving groove 12, and the outer wheel 16 is lapped below the top frame 22. Through the vertical groove 18, the restriction of the rotating rod 14 can be realized, and the inner wheel 13 and the outer wheel 16 can be linked through the rotating rod 14.

[0042] During implementation, by setting a cylinder 8 on the mobile station 3, a locking rod 10 can be installed on the cylinder 8. The cylinder 8 can drive the locking rod 10 to move up and down. A locking disc 15 is provided in the upward movement direction of the locking rod 10. The locking disc 15 is arranged on a swing frame 11. The swing frame 11 will rotate simultaneously with the locking disc 15. After the angle of the swing frame 11 is adjusted, the locking opening 17 on the locking disc 15 will correspond to the position of the locking rod 10. Inserting the locking rod 10 into the locking opening 17 will restrict the entire locking disc 15. After the locking disc 15 is stabilized, the swing frame 11 will also be stabilized, and the swing frame 11 will not move randomly. Thus, it can prevent the swing frame 11 from rotating automatically due to the weight of the mesh after the angle adjustment, ensuring the stability of the swing frame 11 after adjustment, and also enabling the mesh to be stable after the angle adjustment.

[0043] As Figures 1 - 7 shown, a method for using a box girder mesh assembling device capable of adjusting the angle in the air includes the following steps:

[0044] S1: The gantry 1 moves along the assembling direction of the box girder through the traveling wheels 4. The swing frame 11 swings towards the side of the box girder. The placing disc 2 on the swing frame 11 can carry the mesh lifted. Control the rotation of the first servo motor 5 and the second servo motor 26 according to the assembling position and assembling angle of the box girder mesh.

[0045] S2: When the first servo motor 5 drives the screw rod 6 to rotate, the height of the mobile station 3 will be adjusted. When the second servo motor 26 drives the push rod to rotate, the angle of the swing frame 11 will be adjusted. When the push rod pushes the swing frame 11 to rotate, the runner 24 on the push rod will move in the moving groove 12. When moving, it will push the inner wheel 13, and the outer wheel 16 will push the connecting seat 19 outwards. The limiting rod 23 can extend out of the placing disc 2, and the mesh will be restricted by the limiting rod 23 and will not slide. The mesh will not move randomly after the angle is adjusted, which is convenient for the staff to adjust the mesh before assembling the mesh.

[0046] The working principle of the present invention is as follows: By arranging a moving platform 3 on the gantry 1, the first servo motor 5 can control the height of the moving platform 3, and the swing frame 11 on the moving platform 3 can follow the moving platform 3 for height adjustment. A moving groove 12 is formed on the swing frame 11, and a runner 24 is installed in the moving groove 12. The second servo motor 26 can control the pushing frame 25 to move the runner 24 along the moving groove 12. The pushing frame 25 can push the swing frame 11 to rotate, and the swing frame 11 can realize angle adjustment. The mesh on the swing frame 11 can follow the swing frame 11 for angle adjustment. When the placement tray 2 is placed horizontally, the limiting rod 23 is located inside the placement tray 2. As the angle of the swing frame 11 is adjusted, the limiting rod 23 will extend out of the placement tray 2 and insert into the binding space of the mesh. When the mesh follows the swing frame 11 for angle adjustment, it will not slip, ensuring that the staff can adjust the assembly position of the mesh and then carry out welding, thus meeting the work requirements and improving the assembly efficiency. By arranging a cylinder 8 on the moving platform 3, a locking rod 10 can be installed on the cylinder 8. The cylinder 8 can drive the locking rod 10 to move up and down. A locking disc 15 is provided in the upward movement direction of the locking rod 10. The locking disc 15 is arranged on the swing frame 11, and the swing frame 11 will rotate simultaneously with the locking disc 15. After the angle of the swing frame 11 is adjusted, the locking opening 17 on the locking disc 15 will correspond to the position of the locking rod 10. Inserting the locking rod 10 into the locking opening 17 will restrict the entire locking disc 15. After the locking disc 15 is stabilized, the swing frame 11 will also be stabilized, and the swing frame 11 will not move randomly, thus preventing the swing frame 11 from rotating automatically due to the weight of the mesh after angle adjustment, ensuring the stability of the swing frame 11 after adjustment, and also enabling the mesh to be stable after angle adjustment.

[0047] The above describes the basic principle, main features and advantages of the present application. Those skilled in the art of this industry should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A box girder mesh assembly device capable of adjusting the angle in mid-air, comprising a gantry (1) and running wheels (4), characterized in that: A movable platform (3) is connected to the gantry (1) in a lifting manner, a swing frame (11) is arranged on one side of the movable platform (3), and a second servo motor (26) is arranged on the other side of the movable platform (3), the output end of the second servo motor (26) is connected to the swing frame (11), a placement plate (2) is arranged on the swing frame (11), a limit rod (23) is slidably connected to the placement plate (2), and a rotating rod (14) is arranged in the input direction of the limit rod (23).

2. The box girder mesh assembly equipment capable of adjusting the angle in mid-air according to claim 1, characterized in that: The gantry (1) is provided with a guide rod (7) and a screw rod (6), the screw rod (6) and the guide rod (7) are respectively arranged on the moving platform (3), the screw rod (6) is connected to a first servo motor (5), the first servo motor (5) is arranged on the gantry (1), the screw rod (6) and the guide rod (7) are both vertically arranged on the gantry (1), and the screw rod (6) and the guide rod (7) are parallel to each other.

3. The box girder mesh assembly equipment capable of adjusting the angle in mid-air according to claim 1, characterized in that: A lock plate (15) is welded at the connection between the movable platform (3) and the swing frame (11); the lock plate (15) is arranged in a disc shape as a whole; a lock opening (17) is provided on the side edge of the lock plate (15); the lock opening (17) is provided along a circumference of the lock plate (15); the lock plate (15) and the swing frame (11) are arranged coaxially; and the swing frame (11) is arranged in a straight line shape as a whole.

4. The box girder mesh assembly equipment capable of adjusting the angle in mid-air as claimed in claim 3, characterized in that: The movable platform (3) is provided with a cylinder (8), the output end of the cylinder (8) is provided with a locking rod (10), a fixed seat (9) is provided on the movable platform (3) in the moving direction of the locking rod (10), the locking rod (10) is slidably connected to the fixed seat (9) of the movable platform (3), the fixed seat (9) is arranged in a rectangular shape as a whole, and the locking rod (10) is connected to the fixed seat (9) through it.

5. The box girder mesh assembly equipment capable of adjusting the angle in mid-air according to claim 1, characterized in that: A limiting rod (23) is slidably connected to the placement plate (2), the limiting rod (23) penetrates and is connected to the placement plate (2), a corresponding connecting seat (19) is welded to one end of the limiting rod (23), the limiting rod (23) is arranged around the placement plate (2), the connecting seat (19) is arranged in a disc shape as a whole, and the diameter of the connecting seat (19) is smaller than the diameter of the placement plate (2).

6. The box girder mesh assembly equipment capable of adjusting the angle in mid-air as claimed in claim 5, characterized in that: A return spring (20) is sleeved on a limiting rod (23) between the placement plate (2) and the connecting seat (19); one end of the return spring (20) is hung on the placement plate (2), and the other end of the return spring (20) is hung on the connecting seat (19).

7. The box girder mesh assembly equipment capable of adjusting the angle in mid-air as claimed in claim 5, characterized in that: A side frame (21) is welded to the connecting seat (19), and the side frame (21) is arranged in an L-shape as a whole. A top frame (22) is welded to the side frame (21), and the top frame (22) is arranged in an L-shape as a whole, with one end of the top frame (22) facing the swing frame (11).

8. The box girder mesh assembly equipment capable of adjusting the angle in mid-air as claimed in claim 1, characterized in that: The swing frame (11) is provided with a moving groove (12), a rotating wheel (24) is slidably connected in the moving groove (12), the rotating wheel (24) is rotatably connected to a pushing frame (25), and the pushing frame (25) is arranged on a second servo motor (26).

9. The box girder mesh assembly equipment capable of adjusting the angle in mid-air according to claim 1, characterized in that: The swing frame (11) is provided with a vertical slot (18), a rotating rod (14) is rotatably connected in the vertical slot (18), an inner wheel (13) and an outer wheel (16) are respectively welded at both ends of the rotating rod (14), the inner wheel (13) is located in the movable slot (12), and the outer wheel (16) is overlapped below the top frame (22).

10. A method for using a box girder mesh assembly device capable of adjusting the angle in mid-air, applied to the assembly device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: The gantry (1) moves along the assembly direction of the box beam via the running wheels (4), and the swing frame (11) swings toward the side of the box beam. The placement plate (2) on the swing frame (11) can carry the mesh that has been hoisted, and the first servo motor (5) and the second servo motor (26) are controlled to rotate according to the assembly position and assembly angle of the box beam mesh. S2: When the first servo motor (5) drives the screw rod (6) to rotate, the height of the moving platform (3) is adjusted. When the second servo motor (26) drives the push rod to rotate, the angle of the swing frame (11) is adjusted. When the push rod drives the swing frame (11) to rotate, the rotating wheel (24) on the push rod moves in the moving groove (12). When moving, the inner wheel (13) is pushed, and the outer wheel (16) pushes the connecting seat (19) outward. The limit rod (23) can be extended to the outside of the placement plate (2). The mesh is restricted by the limit rod (23) and will not slide. The mesh will not be adjusted at random after the angle is adjusted. It is convenient for the staff to adjust the mesh before assembling the mesh.

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