Panel correcting device for steel box girder processing

Abstract

The present application relates to the field of rectification processing, and specifically provides a panel rectification device for steel box girder processing, comprising a first conveyor and a second conveyor, a bottom plate is arranged between the first conveyor and the second conveyor, a positioning and clamping assembly is arranged on the top of the bottom plate, a polishing assembly is arranged on the positioning and clamping assembly, and an elastic cleaning assembly is arranged on the side of the first conveyor close to the positioning and clamping assembly; the positioning and clamping assembly comprises an auxiliary driving part and an elastic clamping part, the elastic clamping part comprises a fixed plate one fixed on the top of the bottom plate on both sides, a slide rail one is arranged on the top of the fixed plate one, a set of sliding blocks in sliding fit are arranged on the slide rail one, a second moving plate is arranged between the top of the sliding blocks, two fixed plates two are arranged on the top of the second moving plate on both sides, a first moving plate is arranged between the top of the fixed plates two, a notch is arranged on both sides of the first moving plate, and a positioning plate is arranged in the notch. The present application has the following beneficial effects: the processing efficiency of the steel box girder panel is improved, and the labor cost is reduced.

Description

Technical Field

[0001] This invention is a panel straightening device for processing steel box girders, belonging to the field of straightening and processing technology. Background Technology

[0002] As a key load-bearing component in modern bridges and large-scale buildings, the flatness of the steel box girder's panels is fundamental to ensuring the overall structural welding quality and precision. Before assembling and welding the steel box girder, the steel plates used to make the panels must be leveled to eliminate internal stress and warping deformation generated during rolling, transportation, and cutting. Directly using deformed steel plates for welding will lead to splicing difficulties, uncontrollable weld quality, and ultimately affect the structural strength and safety of the entire girder.

[0003] During processing, transportation, and storage, steel box girder panels are prone to surface contamination with impurities, oxide scale, welding slag, and burrs. They are also susceptible to slight deformation. Directly proceeding with subsequent processing would severely impact the overall assembly accuracy and structural strength of the steel box girder. Existing steel box girder panel straightening devices often suffer from limited functionality, separating cleaning, positioning, and straightening processes, resulting in low processing efficiency. Furthermore, their positioning and clamping structures lack adaptability, failing to adjust flexibly according to panel dimensions. The grinding and straightening components also struggle to adapt to the panel surface shape, leading to unsatisfactory straightening and grinding effects, thus failing to meet the high-precision processing requirements of steel box girder panels. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a panel straightening device for processing steel box girders.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] A panel straightening device for processing steel box girders includes a first conveyor and a second conveyor. A base plate is provided between the first and second conveyors. A positioning and clamping assembly is provided on the top of the base plate, and a grinding assembly is provided on the positioning and clamping assembly. An elastic cleaning assembly is provided on the side of the first conveyor near the positioning and clamping assembly. The positioning and clamping assembly includes an auxiliary drive part and an elastic clamping part. The elastic clamping part includes a first fixed plate fixed to both sides of the top of the base plate. A first slide rail is provided on the top of the first fixed plate, and a set of sliding blocks is provided on the slide rail. A second moving plate is transversely arranged between the tops of the sliding blocks. A second fixed plate is provided on both sides of the top of the second moving plate, and a first moving plate is arranged between the tops of the second fixed plates. A positioning plate is provided in the slots on both sides of the first moving plate, and a positioning plate is provided in the slots. A positioning plate is transversely arranged at the lower center of the positioning plate. A lead screw, one end of which is movably connected to the side of a fixed plate two on the corresponding side, and the other end of which passes through the fixed plate two on the other side and is electrically connected to a motor one installed in the middle of the bottom side of the first moving plate; the grinding assembly includes a slide rail two installed on the upper part of the outer wall of the fixed plate one, a controller at one end of the slide rail two, an electric slide seat that slides on the slide rail two, a symmetrical L-shaped seat on the outer wall of the electric slide seat, a fixed plate three on the top of the L-shaped seat, a pneumatic adjustment part on the inner bottom of the fixed plate three, and several grinding rollers on the pneumatic adjustment part; the elastic cleaning assembly includes a motor two, which is installed in the first conveyor near the bottom plate, and the output end of the motor two is connected to a rotating shaft, which passes through the first conveyor and is movably connected to the other side of the first conveyor, and has an expansion part on the rotating shaft.

[0007] Furthermore, guide rods are transversely arranged on both sides of the lower part between the corresponding sides of the two fixed plates, and the guide rods pass through the positioning plates; a sleeve is sleeved in the middle of the screw, and a seat plate is provided at both ends of the sleeve, with the top of the seat plate fixed at the bottom center of the first moving plate.

[0008] Furthermore, the upper part of the inner wall of the positioning plate is provided with an elastic clamping plate.

[0009] Furthermore, the auxiliary drive unit includes a cylinder support base, which is fixed to the top of the base plate near the middle of the side of the second conveyor. A cylinder is provided at the top of the cylinder support base, and a plurality of air rods are provided inside the cylinder. The air rods pass through the cylinder. A push plate is provided on the side of the air rods away from the cylinder. A set of fixing blocks is provided near the center of the side of the push plate away from the air rods. A connecting shaft passes through the side of the fixing blocks away from the push plate. Gears are provided at both ends of the connecting shaft. A gear is provided in the middle of the connecting shaft. A meshing gear plate is provided above the gear. The top of the gear plate is fixed to the bottom center of the second moving plate. A meshing gear plate is provided below the gear. The bottom of the gear plate is fixed to the top of the base plate.

[0010] Furthermore, the pneumatic adjustment unit includes a cylinder two installed on the outer side of the bottom of the fixed plate three, a matching air rod two is provided inside the cylinder two, the air rod two passes through the cylinder two, and a pressure plate is provided at the bottom of the air rod two.

[0011] Furthermore, the pneumatic adjustment unit also includes support plates fixed on both sides of the bottom of the pressure plate. A shaft is inserted through the lower part of the support plate. A folding plate and a U-shaped plate are respectively provided on the shaft. The U-shaped plate is located below the folding plate. Both the folding plate and the U-shaped plate have openings on their outer sides. A shaft is provided below the opening. A connecting plate is provided in the middle of the shaft. Limiting wheels are provided at both ends of the connecting plate. The grinding roller passes through the corresponding limit wheel on one side.

[0012] Furthermore, the expansion section includes a sleeve two sleeved on the rotating shaft. The outer wall of the sleeve two is provided with several protruding plates one. Each end of the protruding plate one is provided with a set of driving rods. The outer sides of the driving rods are fixed to both sides of the protruding plate two. The outer side of the protruding plate two is provided with a support plate. Both ends of the support plate are provided with I-shaped plates. Polygonal plates are sleeved on both sides of the rotating shaft. The polygonal plates are provided with several guide grooves. The I-shaped plates are embedded in the guide grooves. The inner side of the I-shaped plates is provided with springs. The side of the springs away from the I-shaped plates is fixed to the inner side of the guide grooves. The outer side of the support plates is provided with arc-shaped plates. The arc-shaped plates are combined to form a circular auxiliary roller two.

[0013] Furthermore, the surface of the rotating shaft is provided with convex strips on corresponding sides, and the inner wall of the sleeve is provided with convex grooves that match the convex strips on corresponding sides.

[0014] Furthermore, the first conveyor is provided with a set of auxiliary rollers on the side near the bottom plate, and the auxiliary rollers are located below the auxiliary rollers.

[0015] The beneficial effects of this invention are:

[0016] This invention integrates the cleaning, positioning, clamping, grinding, straightening, and conveying of steel box girder panels into a single operation. Compared with traditional straightening devices, it eliminates the transfer links between processes, significantly improving the processing efficiency of steel box girder panels and reducing labor costs.

[0017] The elastic cleaning component, through the elastic telescopic structure of the auxiliary roller two, can be adapted to steel box girder panels of different thicknesses, so that the auxiliary roller two fits tightly with the panel surface, and completes the cleaning of impurities and oxide scale during the conveying process, avoiding secondary damage to the panel by hard objects during the subsequent polishing process.

[0018] The elastic clamping part of the positioning clamping assembly can be driven by a motor to rotate the lead screw, so as to realize the synchronous opening and closing of the positioning plates on both sides. It can adapt to steel box girder panels of different widths. The setting of the elastic clamping plate not only ensures the stability of clamping, but also avoids excessive clamping force that could cause panel deformation. The auxiliary drive part can drive the positioned panel to make reciprocating linear motion, and work with the grinding assembly to achieve comprehensive grinding and correction of the panel.

[0019] The pneumatic adjustment unit of the grinding assembly can adjust the downward pressure height of the grinding roller through cylinder two. At the same time, the grinding roller rotates and cooperates with the support plate through structures such as limit wheels and connecting plates, which can adapt to the surface shape of the steel box girder panel, ensuring full contact between the grinding roller and the panel surface, and improving the accuracy and effect of grinding and correction. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of a panel straightening device for processing steel box girders according to the present invention;

[0022] Figure 2 This is a schematic diagram of the connection structure between the positioning and clamping assembly of the panel straightening device for processing steel box girders and the first conveyor according to the present invention;

[0023] Figure 3 This is a schematic diagram of the auxiliary drive unit structure of a panel straightening device for processing steel box girders according to the present invention;

[0024] Figure 4 This is a schematic diagram of the gear connection structure of a panel straightening device for processing steel box girders according to the present invention;

[0025] Figure 5 This is a schematic diagram of the elastic clamping part of a panel straightening device for processing steel box girders according to the present invention;

[0026] Figure 6 This is a schematic diagram of the grinding component structure of a panel straightening device for processing steel box girders according to the present invention;

[0027] Figure 7 This is a schematic diagram of the grinding roller structure of a panel straightening device for processing steel box girders according to the present invention;

[0028] Figure 8 This is a schematic diagram of the elastic cleaning component structure of a panel straightening device for processing steel box girders according to the present invention;

[0029] Figure 9 This is a schematic diagram of the expansion section of a panel straightening device for processing steel box girders according to the present invention.

[0030] In the diagram, 1. First conveyor; 2. Second conveyor; 3. Base plate; 4. Positioning and clamping assembly; 5. Grinding assembly; 6. Elastic cleaning assembly; 7. Fixed plate one; 8. Slide rail one; 9. Slider; 10. Second moving plate; 11. Fixed plate two; 12. First moving plate; 13. Groove; 14. Positioning plate; 15. Lead screw; 16. Motor one; 17. Slide rail two; 18. Electric slide; 19. L-shaped seat; 20. Fixed plate three; 21. Grinding roller; 22. Motor two; 23. Rotating shaft; 24. Guide rod; 25. Sleeve one; 26. Seat plate; 27. Elastic clamping plate; 28. 29. Cylinder support seat; 30. Cylinder 1; 31. Push plate; 32. Fixing block; 33. Coupling shaft; 34. Gear 2; 35. Gear 1; 36. Gear plate 2; 37. Gear plate 1; 38. Cylinder 2; 39. Pulley 2; 40. Pressure plate; 41. Support plate; 42. Folding plate; 43. U-shaped plate; 44. Connecting plate; 45. Limiting wheel; 46. Sleeve 2; 47. Protruding plate 1; 48. Drive rod; 49. Protruding plate 2; 50. Support plate; 51. I-shaped plate; 52. Polygonal plate; 53. Guide groove; 54. Spring; 55. Auxiliary roller 2; 56. Auxiliary roller 1. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-9This invention provides a technical solution for a panel straightening device for processing steel box girders, including a first conveyor 1 and a second conveyor 2. A base plate 3 is provided between the first conveyor 1 and the second conveyor 2. A positioning clamping assembly 4 is provided on the top of the base plate 3. A grinding assembly 5 is provided on the positioning clamping assembly 4. An elastic cleaning assembly 6 is provided on the side of the first conveyor 1 near the positioning clamping assembly 4. The positioning clamping assembly 4 includes an auxiliary driving part and an elastic clamping part. The elastic clamping part includes a fixing plate 7 fixed to both sides of the top of the base plate 3. A slide rail 8 is provided on the top of the fixing plate 7. A set of sliding sliders 9 are provided on the slide rail 8. A second moving plate 10 is transversely arranged between the tops of the sliders 9. A second fixing plate 11 is provided on both sides of the top of the second moving plate 10. A first moving plate 12 is provided between the tops of the second fixing plates 11. A slot 13 is provided on both sides of the first moving plate 12. A positioning plate 14 is provided in the slot 13. A lead screw 15 is transversely arranged at the lower center of the positioning plate 14. One end of the screw 15 is movably connected to the side of the fixed plate 11 on the corresponding side via a bearing. The other end of the screw 15 passes through the fixed plate 11 on the other side and is electrically connected to the output end of the motor 16 installed in the middle of the bottom side of the first moving plate 12. The grinding assembly 5 includes a slide rail 17 fixedly installed on the upper part of the outer wall of the fixed plate 7. One end of the slide rail 17 is equipped with a controller. The slide rail 17 is equipped with a slidingly fitted electric slide seat 18. The outer wall of the electric slide seat 18 is equipped with a symmetrical L-shaped seat 19. The top of the L-shaped seat 19 is equipped with a fixed plate 20. The bottom inner side of the fixed plate 20 is equipped with a pneumatic adjustment part. The pneumatic adjustment part is equipped with several grinding rollers 21. The elastic cleaning assembly 6 includes a motor 22. The motor 22 is installed in the first conveyor 1 near the bottom plate 3. The output end of the motor 22 is connected to a rotating shaft 23. The rotating shaft 23 passes through the first conveyor 1 and is laterally movably connected to the other side of the first conveyor 1 via a bearing. The rotating shaft 23 is equipped with an expansion part.

[0033] See Figure 5 Guide rods 24 are horizontally arranged on both sides of the lower part between the corresponding sides of the two fixed plates 11. The guide rods 24 pass through the positioning plate 14 and slide in cooperation with the positioning plate 14. A sleeve 25 is sleeved in the middle of the screw 15. Both ends of the sleeve 25 are provided with seat plates 26. The top of the seat plate 26 is fixed at the bottom center of the first moving plate 12. An elastic clamping plate 27 is provided on the upper part of the inner wall of the positioning plate 14. The elastic clamping plate 27 is made of rubber and is used to buffer the clamping force and increase the friction with the panel.

[0034] See Figures 2-4The auxiliary drive unit includes a cylinder support seat 28, which is fixed to the top of the base plate 3 near the middle of the side of the second conveyor 2. A cylinder 29 is provided on the top of the cylinder support seat 28. Several air rods 30 are provided inside the cylinder 29. The air rods 30 pass through the cylinder 29. A push plate 31 is provided on the side of the air rods 30 away from the cylinder 29. A set of fixing blocks 32 is provided near the center of the side of the push plate 31 away from the air rods 30. A connecting shaft 33 is provided through the side of the fixing blocks 32 away from the push plate 31. The connecting shaft 33 is rotatably engaged with the fixing blocks 32. Gears 34 are provided at both ends of the connecting shaft 33. A gear 35 is provided in the middle of the connecting shaft 33. A meshing gear plate 36 is provided above the gear 35. The top of the gear plate 36 is fixed at the bottom center of the second moving plate 10. A meshing gear plate 37 is provided below the gear 34. The bottom of the gear plate 37 is fixed to the top of the base plate 3.

[0035] See Figures 6-7 The pneumatic adjustment unit includes a cylinder 38 installed on the outer side of the bottom of the fixed plate 20. A matching air rod 39 is provided inside the cylinder 38. The air rod 39 passes through the cylinder 38. A pressure plate 40 is provided at the bottom of the air rod 39. The pneumatic adjustment unit also includes a support plate 41 fixed on both sides of the bottom of the pressure plate 40. A shaft 1 is inserted through the lower part of the support plate 41. The shaft 1 is rotatably engaged with the support plate 41. A folding plate 42 and a U-shaped plate 43 are respectively provided on the shaft 1. The U-shaped plate 43 is located below the folding plate 42. An opening is provided on the outer side of both the folding plate 42 and the U-shaped plate 43. A shaft 2 is provided laterally below the opening. The shaft 2 is rotatably engaged with the inner wall of the opening. A connecting plate 44 is provided in the middle of the shaft 2. A limiting wheel 45 is rotatably provided at both ends of the connecting plate. The two ends of the grinding roller 21 are respectively rotatably inserted between the limiting wheels 45 on the same side and are rotatably engaged with the limiting wheels 45.

[0036] See Figures 8-9The expansion part includes a sleeve 46 sleeved on the rotating shaft 23. The sleeve 46 is slidably fitted with the rotating shaft 23. The outer wall of the sleeve 46 is provided with several protruding plates 47. Both ends of the protruding plates 47 are hinged to a set of driving rods 48. The end of the driving rods 48 away from the protruding plates 47 is hinged to both sides of the protruding plate 49. The outer side of the protruding plate 49 is provided with a support plate 50. Both ends of the support plate 50 are provided with I-shaped plates 51. Polygonal plates 52 are sleeved on both sides of the rotating shaft 23. The polygonal plates 52 are provided with several guide grooves 53. The I-shaped plates 51 are embedded in the guide grooves 53 and slidably fitted with the guide grooves 53. The inner side of the I-shaped plates 51 is provided with a spring 54. The side of the spring 54 away from the I-shaped plates 51 is fixed to the inner side of the guide grooves 53. The outer side of the support plate 50 is provided with an arc plate. Several arc plates are combined to form a circular auxiliary roller 55. The rotating shaft 23 has convex strips on the corresponding sides of its surface, and the inner wall of the sleeve 46 has convex grooves that match the convex strips on the corresponding sides. The convex strips and convex grooves slide together to transmit the torque of the rotating shaft 23 and restrict the circumferential rotation of the sleeve 46. The first conveyor 1 has a set of auxiliary rollers 56 on the side near the bottom plate 3. The auxiliary rollers 56 are located below the auxiliary rollers 55. The auxiliary rollers 56 and the auxiliary rollers 55 cooperate to clamp and convey the panel.

[0037] The circuits and electronic components, modules and controllers, or the heat dissipation holes and maintenance doors in the space of the adapted electrical equipment are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this application does not involve improvements to software and methods or heat dissipation and maintenance.

[0038] In use, the steel box girder panel is placed on the first conveyor 1. The panel is conveyed to the elastic cleaning component 6 and passes between the auxiliary roller 2 55 and the auxiliary roller 1 56. The weight of the panel itself presses down on the auxiliary roller 2 55. After being subjected to pressure, the auxiliary roller 2 55 is compressed towards the center. The I-shaped plate 51 compresses the spring 54 and moves towards the rotating shaft 23 in the guide groove 53, so that the auxiliary roller 2 55 is in close contact with the panel surface. The motor 2 22 is started, and the motor 2 22 drives the rotating shaft 23 to rotate. The rotating shaft 23 drives the sleeve 2 46 to rotate through the cooperation of the convex strip and the convex groove. The sleeve 2 46 pulls the support plate 50 to rotate synchronously through the convex plate 1 47 and the drive rod 48. The support plate 50 drives the auxiliary roller 2 55 formed by the arc plate to rotate, thus completing the cleaning of surface impurities and oxide scale during the panel conveying process.

[0039] After cleaning, the panel is conveyed by the first conveyor 1 to the first moving plate 12 of the positioning clamping assembly 4. According to the width of the panel, the motor 16 is started. The motor 16 drives the lead screw 15 to rotate. The thread structure on both sides of the lead screw 15 is opposite, which drives the positioning plates 14 on both sides to move towards the center along the guide rod 24. The panel is stably clamped and positioned by the elastic clamping plate 27. Then, the cylinder 29 is started. The cylinder 29 drives the air rod 30 to extend and retract. The air rod 30 pushes the push plate 31 to move left and right. The push plate 31 drives the connecting shaft 33 to move. The gear 34 rolls on the gear plate 37. The gear 35 drives the gear plate 36 to move, which in turn drives the second moving plate 10 to slide on the slide rail 8 through the slider 9, realizing the reciprocating linear motion of the panel after positioning.

[0040] Simultaneously, the controller activates cylinder 38, which drives the air rod 39 to press down, causing the grinding roller 21 to contact the panel surface. During the panel's reciprocating motion, the grinding roller 21 cleans the oxide scale, welding slag, and burrs on the panel surface and corrects slightly deformed panels. If the panel surface has an irregular shape, the grinding roller 21 can rotate around axis 1 via the limit wheel 45 and connecting plate 44 to achieve adaptive angle adjustment, ensuring comprehensive grinding and correction. Alternatively, the controller can drive the electric slide 18 to slide on slide rail 17, enabling the grinding roller 21 to move left and right, further expanding the grinding range.

[0041] After the steel box girder panel is ground and straightened, motor 16 drives lead screw 15 to reverse, positioning plate 14 releases the panel, and the panel is transported to the second conveyor 2. The second conveyor 2 then transports the straightened panel to the next processing step, completing the entire straightening process.

[0042] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A panel straightening device for processing steel box girders, characterized in that, It includes a first conveyor (1) and a second conveyor (2), a base plate (3) is provided between the first conveyor (1) and the second conveyor (2), a positioning clamping assembly (4) is provided on the top of the base plate (3), a grinding assembly (5) is provided on the positioning clamping assembly (4), and an elastic cleaning assembly (6) is provided on the side of the first conveyor (1) near the positioning clamping assembly (4). The positioning clamping assembly (4) includes an auxiliary drive unit and an elastic clamping unit. The elastic clamping unit includes a first fixed plate (7) fixed on both sides of the top of the base plate (3). The top of the first fixed plate (7) is provided with a first slide rail (8). A set of sliders (9) with sliding fit is provided on the first slide rail (8). A second moving plate (10) is provided transversely between the tops of the sliders (9). The top of the second moving plate (10) is provided with a second fixed plate (11) on both sides. A first moving plate (12) is provided between the tops of the second fixed plate (11). The first moving plate (12) is provided with slots (13) on both sides. A positioning plate (14) is provided in the slots (13). A lead screw (15) is provided transversely at the lower center of the positioning plate (14). One end of the lead screw (15) is movably connected to the side of the second fixed plate (11) on the corresponding side. The other end of the lead screw (15) passes through the second fixed plate (11) on the other side and is electrically connected to a motor (16) installed in the middle of the bottom side of the first moving plate (12). The grinding assembly (5) includes a slide rail two (17) installed on the upper part of the outer wall of the fixed plate one (7). One end of the slide rail two (17) is equipped with a controller. The slide rail two (17) is equipped with a sliding electric slide seat (18). The outer wall of the electric slide seat (18) is equipped with a symmetrical L-shaped seat (19). The top of the L-shaped seat (19) is equipped with a fixed plate three (20). The bottom inner side of the fixed plate three (20) is equipped with a pneumatic adjustment part. The pneumatic adjustment part is equipped with several grinding rollers (21). The pneumatic adjustment part includes a cylinder two (38) installed on the outer side of the bottom of the fixed plate three (20). The cylinder two (38) is equipped with a matching air rod two (39). The second air rod (39) passes through the second cylinder (38). The bottom of the second air rod (39) is provided with a pressure plate (40). The pneumatic adjustment part also includes a support plate (41) fixed on both sides of the bottom of the pressure plate (40). The lower part of the support plate (41) is provided with a shaft. The shaft is provided with a folding plate (42) and a U-shaped plate (43). The U-shaped plate (43) is located below the folding plate (42). The outer sides of the folding plate (42) and the U-shaped plate (43) are provided with openings. The lower part of the opening is provided with a shaft. The middle part of the shaft is provided with a connecting plate (44). The two ends of the connecting plate are provided with limit wheels (45). The grinding roller (21) passes through the corresponding limit wheels (45) on one side. The elastic cleaning assembly (6) includes a second motor (22), which is installed inside the first conveyor (1) near the bottom plate (3). The output end of the second motor (22) is connected to a rotating shaft (23). The rotating shaft (23) passes through the first conveyor (1) and is movably connected to the other side of the first conveyor (1). An expansion part is provided on the rotating shaft (23). The expansion part includes a second sleeve (46) sleeved on the rotating shaft (23). The outer wall of the second sleeve (46) is provided with several protruding plates (47). Both ends of the protruding plates (47) are provided with a set of driving rods (48). The outer side of the driving rods (48) is fixed. On both sides of the second convex plate (49), there is a support plate (50) on the outer side of the second convex plate (49), and I-shaped plates (51) are provided at both ends of the support plate (50); polygonal plates (52) are sleeved on both sides of the rotating shaft (23), and there are several guide grooves (53) on the polygonal plates (52). The I-shaped plates (51) are embedded in the guide grooves (53), and springs (54) are provided on the inner side of the I-shaped plates (51). The side of the springs (54) away from the I-shaped plates (51) is fixed on the inner side of the guide grooves (53); an arc plate is provided on the outer side of the support plate (50), and the arc plates are combined to form a circular auxiliary roller (55).

2. The panel straightening device for processing steel box girders according to claim 1, characterized in that, Guide rods (24) are provided horizontally on both sides of the lower part between the corresponding sides of the two fixed plates (11) on both sides, and the guide rods (24) pass through the positioning plate (14). The screw (15) is fitted with a sleeve (25) in the middle. Both ends of the sleeve (25) are provided with seat plates (26). The top of the seat plate (26) is fixed at the bottom center of the first moving plate (12).

3. The panel straightening device for processing steel box girders according to claim 1, characterized in that, The upper part of the inner wall of the positioning plate (14) is provided with an elastic clamping plate (27).

4. The panel straightening device for processing steel box girders according to claim 1, characterized in that, The auxiliary drive unit includes a cylinder support base (28), which is fixed to the top of the base plate (3) near the middle of the side close to the second conveyor (2). A cylinder (29) is provided on the top of the cylinder support base (28). Several air rods (30) are provided inside the cylinder (29). The air rods (30) pass through the cylinder (29). A push plate (31) is provided on the side of the air rods (30) away from the cylinder (29). A set of fixing blocks is provided on the side of the push plate (31) away from the air rods (30) near the center. (32) A connecting shaft (33) is provided through the side of the fixed block (32) away from the push plate (31). Gears 2 (34) are provided at both ends of the connecting shaft (33). Gear 1 (35) is provided in the middle of the connecting shaft (33). Gear 1 (36) is provided above the gear 1 (35). The top of the gear 1 (36) is fixed at the bottom center of the second moving plate (10). Gear 1 (37) is provided below the gear 2 (34). The bottom of the gear 1 (37) is fixed at the top of the base plate (3).

5. A panel straightening device for processing steel box girders according to claim 1, characterized in that, The surface of the rotating shaft (23) is provided with convex strips on the corresponding sides, and the inner wall of the sleeve (46) is provided with convex grooves that match the convex strips on the corresponding sides.

6. The panel straightening device for processing steel box girders according to claim 1, characterized in that, The first conveyor (1) is provided with a set of auxiliary rollers (56) on the side near the bottom plate (3), and the auxiliary rollers (56) are located below the auxiliary rollers (55).

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