Welding device and process of steel box girder for viaduct

Abstract

The invention relates to a welding device and process for a steel box girder for a viaduct, and relates to the technical field of welding devices.The welding device comprises a welding frame, the welding frame comprises a supporting plate, supporting tables are arranged on the two sides of the supporting plate in the length direction, and the welding frame further comprises a sliding frame which is horizontally and slidably connected to the two supporting tables; the sliding frame is movably connected with a welding assembly used for welding the rib plate and the mounting plate, and the sliding frame is further movably connected with a cleaning assembly used for cleaning the junction of the rib plate and the mounting plate. The installation plate is placed on the upper end face of the supporting plate, the rib plates are placed at the upper end of the installation plate at equal intervals, the rib plates are pressed on the installation plate, then the sliding frame can be moved, firstly, the cleaning assembly cleans the junctions of the rib plates to be welded and the installation plate, and the welding assembly welds the junctions of the cleaned rib plates and the installation plate. When the rib plate and the mounting plate are welded, impurities are few, the welding effect is good, and the welding stability between the rib plate and the mounting plate is high.

Description

Technical Field

[0001] The present invention relates to the technical field of welding devices, and in particular to a welding device and process for steel box girders used in viaducts. Background Art

[0002] As a support structure inside the steel box girder, the rib plate of the steel box girder can increase the stiffness of the steel box girder and can better maintain the stability of its shape and size when subjected to external forces.

[0003] The steel box girder includes a mounting plate. When the rib plate is mounted on the mounting plate, the rib plate is usually welded to the mounting plate by welding. The welding method can provide sufficient strength and stability to meet the mechanical property requirements of the mounting plate during use.

[0004] During the welding process of the rib plate and the mounting plate, it is inevitable that welding slag will splash. The splashed welding slag is very likely to fall at the junction of the rib plate and the mounting plate. When welding the rib plate and the mounting plate later, it is easy to occur that the weld is slag-included or the welded part is not penetrated, which will lead to the safety and reliability of the welding structure, and further lead to a poor support effect of the rib plate on the mounting plate. Summary of the Invention

[0005] In order to improve the welding stability between the rib plate and the mounting plate, the present application provides a welding device and process for steel box girders used in viaducts.

[0006] In a first aspect, the present application provides a welding device for a steel box girder used in a viaduct, adopting the following technical scheme: A welding device for a steel box girder used in a viaduct, including a welding frame. The welding frame includes a support plate. Support platforms are arranged on both sides in the length direction of the support plate. The welding frame further includes a sliding frame. The sliding frame is horizontally slidably connected to the two support platforms. A welding assembly for welding the rib plate and the mounting plate is movably connected to the sliding frame. A cleaning assembly for cleaning the junction of the rib plate and the mounting plate is also movably connected to the sliding frame.

[0007] By adopting the above technical scheme, place the mounting plate on the upper end surface of the support plate, place the rib plates at equal intervals on the upper end of the mounting plate, press the rib plates against the mounting plate, and then move the sliding frame. First, the cleaning assembly cleans the junction of the rib plate and the mounting plate to be welded, and then the welding torch welds the junction of the cleaned rib plate and mounting plate. When welding the rib plate and the mounting plate, there are fewer impurities, the welding effect is better, and the welding stability between the rib plate and the mounting plate is higher.

[0008] Optionally, a driving cylinder is horizontally and slidably connected to the sliding frame. A driving motor is arranged on the piston rod of the driving cylinder. The welding assembly includes a support frame, a connecting rod and a welding torch. The support frame is arranged above the connecting rod. The welding torch is arranged at the lower end of the connecting rod. The output shaft of the driving motor is fixedly connected to the upper end of the support frame, and the connecting rod is fixed to the support frame.

[0009] By adopting the above technical solution, by operating the output shaft of the driving cylinder to extend, the driving motor and the welding torch can be driven to adjust in the height direction, thereby adjusting the height of the welding torch; by operating the output shaft of the driving motor to rotate, the orientation of the welding torch tip can be adjusted. The structure is simple and the adjustment is convenient.

[0010] Optionally, a support block is fixedly connected to the side of the driving cylinder away from the sliding frame. The cleaning assembly includes a support column. The support column is rotatably connected to the lower end of the support block. A plurality of sliding blocks are vertically and slidably connected to the support column. Two support rods are arranged at the lower end of each sliding block, and a cleaning rod is arranged at the lower end of each support rod.

[0011] By adopting the above technical solution, after welding one of the rib plates with the welding torch, operate the driving cylinder to slide on the sliding frame. During the sliding process of the driving cylinder, the support block is driven to slide. When it slides to the next position to be cleaned, the support column can be operated to rotate, thereby adjusting the positions of a plurality of sliding blocks, and making the unused cleaning rod face the position directly opposite to the driving motor. Then the sliding frame can be moved, and the unused cleaning rod is used to clean the junction of the rib plate to be welded and the mounting plate, thereby improving the cleaning effect on the junction of the rib plate to be welded and the mounting plate. The welding torch welds the junction of the rib plate and the mounting plate after cleaning. When welding the rib plate and the mounting plate, there are fewer impurities, the welding effect is better, and the welding stability between the rib plate and the mounting plate is higher.

[0012] Optionally, the two cleaning rods on the same sliding block are inclined in a direction away from each other.

[0013] By adopting the above technical solution, the positions of the two cleaning rods respectively face the positions of the junctions of two adjacent rib plates and the mounting plate, thereby improving the cleaning effect on the junctions of the rib plates and the mounting plate.

[0014] Optionally, a driving plate is arranged on one side of the driving motor in the height direction. A driven plate is arranged on the side of each sliding block away from the support column. The driving plate and the driven plate are detachably connected.

[0015] By adopting the above technical solution, by operating the piston rod of the driving cylinder to extend, the driving motor is driven to move accordingly. After the driving plate and the driven plate come into contact during the movement, the driving plate is connected to the driven plate. Then, by continuing to operate the piston rod of the driving cylinder to extend, the sliding block is driven to move, and further the two cleaning rods are driven to move. When the two cleaning rods are respectively moved to the positions abutting against the rib plates, the joint between the rib plates and the mounting plate can be cleaned by moving the sliding frame, which is highly convenient. After welding the joint between one of the rib plates and the mounting plate is completed, by operating the piston rod of the driving cylinder to retract, the driving motor, the welding torch, the driven plate and the cleaning rods are driven to move. After the cleaning rods move to the upper end of the support column, the connection between the driving plate and the driven plate is released, and the restoration of the sliding block is completed. The structure is simple and the driving is convenient.

[0016] Optionally, each of the sliding blocks is detachably connected to the upper end of the support column.

[0017] By adopting the above technical solution, when a set of cleaning rods is used up, by operating the driving plate to drive the driven plate to be restored, when the sliding block is moved to the upper end of the support column and the sliding block is connected to the support part, the connection between the driving plate and the driven plate can be cancelled. The structure is simple and the driving is convenient.

[0018] Optionally, at both ends in the length direction of each sliding block, connecting blocks are slidably connected. The edges of the connecting blocks are all rounded. Elastic members are arranged between the connecting blocks and the sliding blocks. A plurality of grooves adapted to the connecting blocks are formed on the support column, and the grooves correspond to the connecting blocks one by one.

[0019] By adopting the above technical solution, when the sliding block is connected to the support column, the elastic member is restored, and the connecting block enters the corresponding groove, that is, the connection between the sliding block and the support column is completed. When the sliding block is in contact connection with the support column, the elastic member is compressed, and the connecting block moves to the outside of the groove. The structure is simple.

[0020] Optionally, a gear is sleeved on the outside of the support column, and driving racks are equidistantly arranged at the upper end of the second frame. The driving racks are adapted to and meshed with the driving gear.

[0021] By adopting the above technical solution, after welding one of the rib plates is completed, when operating the driving cylinder to slide on the sliding frame, after the driving gear contacts the driving rack, it rotates, and then drives the support column to rotate, and further changes the positions of a plurality of sliding blocks. When welding the next rib plate, the cleaning rods for cleaning the rib plate and the mounting plate are unused, so as to improve the cleaning effect on the rib plate and the mounting plate, and further improve the stability of subsequent welding of the rib plate and the mounting plate.

[0022] Optionally, electromagnets are arranged at the lower end of the driving plate, and each driven plate is made of a magnetizable metal material.

[0023] By adopting the above technical solution, the driven plate can be attracted by operating the electromagnet to complete the connection between the driving plate and the driven plate. The structure is simple and the connection is convenient. When disassembling, just operate the electromagnet to close, which is highly convenient.

[0024] In a second aspect, the present application provides a welding process for a steel box girder used in a viaduct, adopting the following technical solution: A welding process for a steel box girder used in a viaduct includes the following steps: S1: Place the mounting plate on the support plate, and place the rib plates at equal intervals on the upper end of the mounting plate; S2: Press all the rib plates tightly against the mounting plate; S3: Operate the piston rod of the driving cylinder to extend, driving the driving motor, the driving plate and the welding torch to move towards the junction of the rib plate and the mounting plate; S4: When the driving plate moves to the driven plate, it abuts against one of the driven plates, driving the sliding block to move, and the cleaning rod abuts against the junction of the rib plate and the mounting plate; S5: Move the sliding frame, driving the cleaning rod to move, cleaning the junction of the rib plate and the mounting plate, driving the welding torch to move, and welding the cleaned junction of the rib plate and the mounting plate; S6: After welding one rib plate is completed, operate the driving plate and the driven plate to be connected, operate the sliding frame to restore to the initial direction, and at the same time operate the piston rod of the driving cylinder to retract, so as to drive the driving motor, the driving plate and the welding torch to move away from the rib plate and the mounting plate; S7: Operate the driving cylinder to slide along the length direction of the sliding frame. While moving, the support column rotates driven by the driving rack, and the driving cylinder moves above the next rib plate to be welded; S8: Repeat step S3; S9: When the driving plate moves to the driven plate, it abuts against the other driven plate, driving the sliding block to move, and the cleaning rod abuts against the junction of the rib plate and the mounting plate; S10: Repeat steps S5 to S9.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The prominent innovation point of the present application is that after welding one of the rib plates is completed, when operating the driving cylinder to slide on the sliding frame, the driving gear rotates after contacting the driving rack, thereby driving the support column to rotate, and further changing the positions of several sliding blocks. Before welding the next rib plate, the cleaning rod for cleaning the rib plate and the mounting plate at this time has not been used, thereby improving the cleaning effect of the rib plate and the mounting plate, and further improving the stability of subsequent welding of the rib plate and the mounting plate; 2. Place the mounting plate on the upper end face of the support plate, place the rib plates at equal intervals on the upper end of the mounting plate, press the rib plates onto the mounting plate, then move the sliding frame. First, clean the junction of the component with the rib plates and the mounting plate to be welded. The welding component welds the junction of the cleaned rib plates and the mounting plate. When welding the rib plates and the mounting plate, there are fewer impurities, the welding effect is better, and the welding stability between the rib plates and the mounting plate is higher. 3. After using the welding torch to weld one of the rib plates, manipulate the driving cylinder to slide on the sliding frame. During the sliding of the driving cylinder, drive the support block to slide. When it slides to the next position to be cleaned, the support column can be manipulated to rotate, thereby adjusting the positions of several sliding blocks, and orient the unused cleaning rod towards the position facing the driving motor. Then move the sliding frame, use the unused cleaning rod to clean the junction of the rib plates and the mounting plate to be welded, thereby improving the cleaning effect on the junction of the rib plates and the mounting plate to be welded. The welding torch welds the junction of the cleaned rib plates and the mounting plate. When welding the rib plates and the mounting plate, there are fewer impurities, the welding effect is better, and the welding stability between the rib plates and the mounting plate is higher. Description of the Drawings

[0026] Figure 1 is the overall structural schematic diagram of a welding device for a steel box girder used in a viaduct.

[0027] Figure 2 is a schematic diagram highlighting the first motor.

[0028] Figure 3 is a cross-sectional schematic diagram highlighting the sliding block.

[0029] Figure 4 is Figure 2 the enlarged schematic diagram of part A in

[0030] Description of the Reference Numerals: 100, rib plate; 200, mounting plate; 1, welding frame; 2, support plate; 21, support platform; 211, platform one; 212, platform two; 22, first sprocket; 221, first chain; 222, first motor; 3, sliding frame; 31, vertical plate; 311, second sprocket; 312, second chain; 32, support block; 4, welding component; 41, support frame; 411, connecting rod; 412, welding torch; 42, driving cylinder; 43, driving motor; 431, driving plate; 5, cleaning component; 51, support column; 52, sliding block; 521, support rod; 522, cleaning rod; 523, driven plate; 53, driving gear; 54, driving rack; 6, slide rail; 7, connecting block; 71, elastic member; 8, groove; 9, connecting plate. Detailed Embodiment

[0031] The following further describes the present application in detail with reference to all the drawings.

[0032] An embodiment of the present application discloses a welding device for a steel box girder used in a viaduct.

[0033] Referring to Figure 1 and Figure 2 As shown in FIGS.

[0034] Referring to Figure 1 and Figure 2 As shown in FIGS.

[0035] Referring to Figure 1 and Figure 2, a driving cylinder 42 is horizontally and slidably connected to the sliding frame 3. A driving motor 43 is arranged on the piston rod of the driving cylinder 42. The welding assembly 4 includes a support frame 41, a connecting rod 411 and a welding torch 412. The support frame 41 is arranged above the connecting rod 411, and the welding torch 412 is arranged at the lower end of the connecting rod 411. The output shaft of the driving motor 43 is fixedly connected to the upper end of the support frame 41, and the connecting rod 411 is fixed to the support frame 41.

[0036] Refer to Figure 1 and Figure 3 , on the side of the driving cylinder 42 away from the sliding frame 3, a support block 32 is fixedly connected. A connecting plate 9 is arranged on the side of the support block 32 close to the driving cylinder 42. The driving cylinder 42 is arranged at the upper end of the connecting plate 9, and the output shaft of the driving cylinder 42 extends to the lower end of the connecting plate 9. The connecting plate 9 is slidably connected to the upper end of the sliding frame 3. The cleaning assembly 5 includes a support column 51. The support column 51 is rotatably connected to the lower end of the support block 32. A plurality of sliding blocks 52 are vertically slidably connected to the support column 51. Two support rods 521 are arranged at the lower end of each sliding block 52. A cleaning rod 522 is arranged at the lower end of each support rod 521. The two cleaning rods 522 on the same sliding block 52 are inclined in the direction away from each other.

[0037] Refer to Figure 1 and Figure 3 , the sliding frame 3 includes a vertical plate 31. The vertical plate 31 is horizontally arranged at the upper end of the sliding frame 3. Chain wheels two 311 are arranged on both sides in the length direction of the vertical plate 31. A chain two 312 is externally engaged with the two chain wheels two 311. The chain two 312 is sleeved outside the two chain wheels two 311. The connecting plate 9 is fixedly connected to the chain two 312. One end of the vertical plate 31 away from the chain wheel two 311 is provided with a motor two. The output shaft of the motor two passes through the vertical plate 31 and is coaxially fixedly connected to one of the chain wheels two 311; operate the output shaft of the motor two to rotate, and move the cleaning assembly 5 and the welding assembly 4 to one side in the length direction of the support plate 2.

[0038] Before welding, first fix a plurality of rib plates 100 to the installation table by using a fixing device, and then the cleaning of the rib plates 100 and the installation table can be started; the fixing device is prior art and can fix the rib plates 100, and will not be elaborated too much in this embodiment.

[0039] Refer to Figure 1 and Figure 4, the piston rod of the driving cylinder 42 is manipulated to extend, thereby driving the driving motor 43, the support frame 41, the connecting rod 411 and the welding torch 412 to move in the direction close to the rib plate 100. A driving plate 431 is provided on one side of the driving motor 43 in the height direction. A driven plate 523 is provided on the side of each sliding block 52 away from the support column 51. The driving plate 431 is detachably connected to the driven plate 523. Each sliding block 52 is detachably connected to the upper end of the support column 51; after the driving plate 431 contacts one of the driven plates 523, it drives the sliding block 52 to move in the direction close to the rib plate 100; cleaning cotton is provided at the lower end of the cleaning rod 522 until the cleaning cotton at the lower end of the cleaning rod 522 moves to a position where it abuts against the junction of the rib plate 100 and the mounting plate 200.

[0040] Among them, the cleaning cotton is preferably high-temperature resistant sponge, or a protective coating can be coated on the outer surface of the cleaning cotton, which are all prior arts and will not be elaborated too much in this embodiment.

[0041] Refer to Figure 1 and Figure 2 , the output shaft of the first motor 222 is manipulated to rotate, thereby driving the cleaning rod 522 to move and cleaning the junction of the rib plate 100 and the mounting plate 200; as the output shaft of the first motor 222 continues to rotate, at this time, the gun head of the welding torch 412 moves above the rib plate 100 and the mounting plate 200, and the rib plate 100 and the mounting plate 200 can be welded by using the welding torch 412; during the welding process of the welding torch 412, welding slag will fly out, and at this time, the cleaning cotton can push the welding slag.

[0042] Refer to Figure 2 and Figure 4 , an electromagnet is arranged at the lower end of the driving plate 431, and each driven plate 523 is made of magnetizable metal; after welding one side of the rib plate 100 in the length direction is completed, the output shaft of the second motor can be manipulated to rotate, thereby driving the welding assembly 4 and the cleaning assembly 5 to move; then the piston rod of the driving cylinder 42 is manipulated to retract, the electromagnet is manipulated to be turned on, driving the driven plate 523 to move in the direction close to the support column 51, and moving the sliding block 52 (refer to Figure 3 ) to the position connected to the support column 51, and then the electromagnet can be turned off.

[0043] Refer to Figure 2 and Figure 3, at both ends of each sliding block 52 in the length direction, there are connecting blocks 7 slidably connected. The edges of the connecting blocks 7 are all rounded. An elastic member 71 is provided between each connecting block 7 and the sliding block 52. A plurality of grooves 8 adapted to the connecting blocks 7 are formed on the support column 51. The grooves 8 correspond to the connecting blocks 7 one by one. As the connecting block 7 enters the interior of the corresponding groove 8, the elastic member 71 extends, driving the sliding block 52 to move into the groove 8, completing the restoration of the sliding block 52.

[0044] Referring to Figure 1 and Figure 3 , a driving gear 53 is sleeved outside the support column 51. A driving rack 54 is provided on one side of the sliding frame 3 close to the support column 51. The driving rack 54 is adapted to and meshes with the driving gear 53. As the cleaning assembly 5 moves, after the driving gear 53 contacts the driving rack 54, it rotates, thereby driving the support column 51 to rotate, and further changing the positions of a plurality of sliding blocks 52. When welding next time, the cleaning rod 522 for cleaning the rib plate 100 and the mounting plate 200 is unused, thereby improving the cleaning effect on the rib plate 100 and the mounting plate 200, and further improving the stability of subsequent welding of the rib plate 100 and the mounting plate 200.

[0045] The embodiment of the present application also discloses a welding process for a steel box girder used in a viaduct, including the following steps: S1: Place the mounting plate 200 on the support plate 2, and place the rib plates 100 at equal intervals on the upper end of the mounting plate 200; S2: Press a plurality of rib plates 100 tightly against the mounting plate 200; S3: Operate the piston rod of the driving cylinder 42 to extend, driving the driving motor 43, the driving plate 431 and the welding torch 412 to move towards the junction of the rib plate 100 and the mounting plate 200; S4: When the driving plate 431 moves to the driven plate 523 and abuts against one of the driven plates 523, it drives the sliding block 52 to move, and the cleaning rod 522 abuts against the junction of the rib plate 100 and the mounting plate 200; S5: Move the sliding frame 3, drive the cleaning rod 522 to move, clean the junction of the rib plate 100 and the mounting plate 200, drive the welding torch 412 to move, and weld the junction of the cleaned rib plate 100 and the mounting plate 200; S6: After welding one rib plate 100 is completed, operate the driving plate 431 and the driven plate 523 to be connected, operate the sliding frame 3 to restore to the initial direction, and at the same time operate the piston rod of the driving cylinder 42 to retract, so as to drive the driving motor 43, the driving plate 431 and the welding torch 412 to move away from the rib plate 100 and the mounting plate 200; S7: Manipulate the driving cylinder 42 to slide along the length direction of the sliding frame 3. While moving, the support column 51 rotates driven by the driving rack 54, and the driving cylinder 42 moves above the next rib plate 100 to be welded; S8: Repeat step S3; S9: When the driving plate 431 moves to the driven plate 523, it abuts against another driven plate 523, drives the sliding block 52 to move, and the cleaning rod 522 abuts against the junction of the rib plate 100 and the mounting plate 200; S10: Repeat steps S5 to S9.

[0046] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited hereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A welding device for a steel box girder for a viaduct, comprising a welding frame (1), characterized in that: The welding frame (1) comprises a support plate (2), and support platforms (21) are arranged on both sides of the support plate (2) in the length direction. The welding frame (1) also comprises a sliding frame (3), and the sliding frame (3) is horizontally slidably connected to the two support platforms (21). A welding assembly (4) for welding the rib plate (100) and the mounting plate (200) is movably connected to the sliding frame (3), and a cleaning assembly (5) for cleaning the junction between the rib plate (100) and the mounting plate (200) is also movably connected to the sliding frame (3).

2. The welding device for a steel box girder for a viaduct according to claim 1 is characterized in that: The sliding frame (3) is horizontally slidably connected to a driving cylinder (42); a driving motor (43) is arranged on a piston rod of the driving cylinder (42); the welding assembly (4) comprises a supporting frame (41), a connecting rod (411) and a welding gun (412); the supporting frame (41) is arranged above the connecting rod (411); the welding gun (412) is arranged at the lower end of the connecting rod (411); the output shaft of the driving motor (43) is fixedly connected to the upper end of the supporting frame (41); and the connecting rod (411) is fixed to the supporting frame (41).

3. The welding device for a steel box girder for a viaduct according to claim 2 is characterized in that: The driving cylinder (42) is fixedly connected to a support block (32) on one side away from the sliding frame (3); the cleaning assembly (5) comprises a support column (51), the support column (51) is rotatably connected to the lower end of the support block (32), a plurality of sliding blocks (52) are vertically slidably connected to the support column (51), the lower end of each sliding block (52) is provided with two support rods (521), and the lower end of each support rod (521) is provided with a cleaning rod (522).

4. The welding device for a steel box girder for a viaduct according to claim 3 is characterized in that: The two cleaning rods (522) located on the same sliding block (52) are arranged to be inclined in directions away from each other.

5. The welding device for a steel box girder for a viaduct according to claim 3 is characterized in that: A driving plate (431) is provided on one side of the driving motor (43) in the height direction, and a driven plate (523) is provided on one side of each sliding block (52) away from the supporting column (51), and the driving plate (431) and the driven plate (523) are detachably connected.

6. The welding device for a steel box girder for a viaduct according to claim 4, characterized in that: Each of the sliding blocks (52) is detachably connected to the upper end of the supporting column (51).

7. The welding device for a steel box girder for a viaduct according to claim 6, characterized in that: Both ends of each sliding block (52) in the length direction are slidably connected to a connecting block (7), the edges of the connecting block (7) are rounded, an elastic member (71) is arranged between the connecting block (7) and the sliding block (52), and a plurality of grooves (8) adapted to the connecting block (7) are provided on the support column (51), and the grooves (8) correspond to the connecting block (7) one by one.

8. The welding device for a steel box girder for a viaduct according to claim 7, characterized in that: The support column (51) is provided with a driving gear (53) on its outer sleeve, and a driving rack (54) is provided on one side of the sliding frame (3) close to the support column (51), and the driving rack (54) is adapted to and meshes with the driving gear (53).

9. The welding device for a steel box girder for a viaduct according to claim 4, characterized in that: An electromagnet is arranged at the lower end of the driving plate (431), and each driven plate (523) is made of a magnetically attractive metal material.

10. A welding process for a steel box girder for a viaduct, characterized in that: The rib plate (100) and the mounting plate (200) are welded using the welding device for a viaduct steel box girder as claimed in claim 8, comprising the following steps: S1: placing the mounting plate (200) on the supporting plate (2), and placing the ribs (100) at equal intervals on the upper end of the mounting plate (200); S2: Pressing a plurality of ribs (100) against the mounting plate (200); S3: operating the piston rod of the driving cylinder (42) to extend, driving the driving motor (43), the driving plate (431) and the welding gun (412) to move toward the junction of the rib plate (100) and the mounting plate (200); S4: When the driving plate (431) moves to the driven plate (523), it contacts one of the driven plates (523), driving the sliding block (52) to move, and the cleaning rod (522) contacts the junction between the rib plate (100) and the mounting plate (200); S5: moving the sliding frame (3) to drive the cleaning rod (522) to move, cleaning the interface between the rib plate (100) and the mounting plate (200), driving the welding gun (412) to move, and welding the cleaned interface between the rib plate (100) and the mounting plate (200); S6: After welding of a rib plate (100) is completed, the driving plate (431) and the driven plate (523) are connected, the sliding frame (3) is operated to return to the initial direction, and the piston rod of the driving cylinder (42) is operated to retract, so as to drive the driving motor (43), the driving plate (431) and the welding gun (412) to move in a direction away from the rib plate (100) and the mounting plate (200); S7: operating the driving cylinder (42) to slide along the length direction of the sliding frame (3), and while moving, the supporting column (51) is driven by the driving rack (54) to rotate, and the driving cylinder (42) moves to the top of the next rib plate (100) to be welded; S8: repeat step S3; S9: When the driving plate (431) moves to the driven plate (523), it abuts against another driven plate (523), driving the sliding block (52) to move, and the cleaning rod (522) abuts against the junction between the rib plate (100) and the mounting plate (200); S10: Repeat steps S5 to S9.

Images