Prefabricated box girder steel bar component construction method based on mesh assembly and equipment thereof

Abstract

The invention provides a prefabricated box girder reinforcing steel bar component construction method and equipment based on mesh assembly, a reinforcing steel bar block body of an assembled reinforcing steel bar component is split into a lower reinforcing steel bar mesh and an upper reinforcing steel bar mesh, and the lower reinforcing steel bar mesh and the upper reinforcing steel bar mesh are manufactured in sequence; and the upper-layer reinforcing mesh is hoisted to the position above the lower-layer reinforcing mesh, the upper-layer reinforcing mesh and the lower-layer reinforcing mesh are welded, and manufacturing of the reinforcing block body is completed through the steps. The reinforcing steel bar component is split into the plurality of reinforcing steel bar blocks, and each reinforcing steel bar block is formed by splicing the upper reinforcing steel bar mesh and the lower reinforcing steel bar mesh, so that industrial standardized equipment can be conveniently used for production, meanwhile, the high-precision reinforcing steel bar meshes and the reinforcing steel bar blocks are obtained, and the overall quality of the reinforcing steel bar component is improved.

Description

Technical Field

[0001] The invention relates to the field of prefabricated box girder construction, and in particular to a method and equipment for constructing prefabricated box girder steel bar components based on mesh assembly. Background Art

[0002] With the increase in my country's transportation demand and the rapid development of road and bridge construction technology, many large continuous bridges have adopted prefabricated box girder technology in recent years. Prefabricated box girders are widely used in domestic high-grade highways due to their light structure, small building height, less reinforcement and fast construction speed.

[0003] At present, the most common construction method at the box girder reinforcement construction site is to manually carry the reinforcement to the outer formwork of the box girder for positioning, tying or welding. The construction efficiency is relatively low, and it is difficult to ensure the production cycle of the box girder reinforcement. Due to the large size of the box girder, a lot of manpower is required, which is a labor-intensive operation, which invisibly increases the safety risk of the construction site. Since the construction site is often open-air, the reinforcement construction is easily restricted by bad weather, resulting in a construction window period. At the same time, due to the difficulty in ensuring the technical level of the workers, the quality of the box girder reinforcement construction is also difficult to ensure. The mechanization and automation degree of the current cast-in-place box girder construction process and method is not high, and the construction quality is also difficult to control. Therefore, a prefabricated box girder reinforcement component construction method based on mesh assembly and its equipment are proposed to solve the above problems. Summary of the invention

[0004] The main purpose of the present invention is to provide a method and equipment for constructing prefabricated box girder reinforcement components based on mesh assembly, so as to solve the problems that traditional prefabricated box girder reinforcement construction is generally carried out by manual loose binding, which has the problems of intensive operators, high labor intensity, poor working environment and low construction quality.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a method for constructing prefabricated box beam steel bar components based on mesh assembly, the method comprising: S1. Splitting the steel bar block of the assembled steel bar component into a lower steel bar mesh and an upper steel bar mesh, and completing the production of the lower steel bar mesh and the upper steel bar mesh in sequence; S2. Make the lower layer of steel mesh and arrange multiple longitudinal bars neatly according to the design size; S3, inserting the transverse reinforcement of the lower steel mesh into the bottom of the plurality of longitudinal reinforcements, welding the transverse reinforcement to the longitudinal reinforcement, and then bending the transverse reinforcement into a U-shape with the side walls extending inward; S4, pulling the longitudinal reinforcement to continue to move for a certain distance, and repeating step S3 until all the transverse reinforcements are installed; S5. Make the upper steel mesh and arrange multiple longitudinal bars neatly according to the design size; S6. Insert the transverse reinforcement of the upper steel mesh into the top of the plurality of longitudinal reinforcements, and weld the transverse reinforcement to the longitudinal reinforcement; S7, pulling the longitudinal reinforcement to continue to move for a certain distance, and repeating step S6 until all the transverse reinforcements are installed; S8, hoist the upper steel mesh to the top of the lower steel mesh, and weld the two together. Finally, install hook bars between the upper steel mesh and the lower steel mesh; The production of the steel bar block is completed through the above steps.

[0006] In a preferred embodiment, the bending method of the transverse rib in step S3 is secondary bending, specifically: firstly, the transverse rib is bent into a U-shape, and then, by secondary bending, it is bent into a U-shape with two side walls extending inward.

[0007] In the preferred embodiment, the longitudinal reinforcement is made of bundled straight reinforcement or disc reinforcement; The method of making bundled straight bars is as follows: first, the bundled straight bars are broken up and welded one by one to lengthen, and then the designed length is installed and cut to a fixed length to form longitudinal bars; The method of making round steel bars is to straighten the round steel bars, install them and cut them to the designed length to form longitudinal bars.

[0008] The transverse reinforcement is made of round steel bars. Specifically, the round steel bars are straightened, installed and cut to the designed length to form transverse reinforcement.

[0009] In the preferred embodiment, the assembly of the lower steel mesh and the upper steel mesh is completed on the transverse reinforcement welding and bending mechanism, and the transverse reinforcement welding and bending mechanism is provided with a longitudinal reinforcement positioning mechanism and a traction mechanism, and the neatly arranged longitudinal reinforcement ends pass through the longitudinal reinforcement positioning mechanism and are connected to the traction mechanism, and the longitudinal reinforcement is pulled as a whole through the transverse reinforcement welding and bending mechanism by the traction mechanism; The transverse reinforcement welding and bending mechanism is provided with a mobile welding device and a transverse reinforcement bending mechanism. When the longitudinal reinforcement passes through the transverse reinforcement welding and bending mechanism, the transverse reinforcements are inserted into the longitudinal reinforcements one by one, and the welding and bending work is completed by the mobile welding device and the transverse reinforcement bending mechanism.

[0010] In a preferred embodiment, the mobile welding device is provided with an identification device for identifying the position of the welding point between the transverse reinforcement and the longitudinal reinforcement; The recognition device uses a dual-camera visual positioning recognition method with a specific spacing, binarizes the collected dual-camera images, marks the intersection position within the current field of view, and uses the dual-camera image visual difference combined with trigonometric functions to calculate the intersection position coordinates. The intersection position coordinates are compared with the design coordinates. When the error value is within the preset range, welding is performed at the intersection position. If the error value exceeds the preset range, the current welding point is skipped, the next welding point is processed, and an alarm is issued. The mobile welding device is driven by a Cartesian coordinate mechanism.

[0011] The preferred solution also includes the following steps: S9, separately manufacturing the bottom plate body, two groups of web plate bodies and the top plate body, and reserving the longitudinal reinforcement positions in the overlapping areas during assembly; S10, hoisting the bottom plate body, two sets of belly plate bodies and the top plate body into the assembly frame in sequence, and assembling them into shape by welding; S11, then insert the corresponding longitudinal reinforcement into the reserved longitudinal reinforcement position in the overlapped area, and tie or weld them; S12. Tie or weld chamfered stirrups between two sets of web plates and top plates; S13. Finally, install the positioning steel mesh according to the drawings, and insert the corrugated pipe and prestressed steel bars in the positioning steel mesh in sequence; The above steps are used to manufacture steel bar parts.

[0012] Prefabricated box girder reinforcement component manufacturing equipment based on mesh assembly, including The longitudinal reinforcement material preparation and initial positioning conveying mechanism completes the longitudinal reinforcement material preparation and conveying one by one, and arranges the longitudinal reinforcement neatly at the end to complete the initial positioning of the longitudinal reinforcement; The transverse reinforcement welding and bending mechanism is connected to the longitudinal reinforcement material preparation initial positioning and conveying mechanism, and is used to pull the longitudinal reinforcement through itself and weld and bend the inserted transverse reinforcement; A transverse reinforcement processing device is connected to the transverse reinforcement welding and bending mechanism, used for processing transverse reinforcements of required sizes and inserted into the transverse reinforcement welding and bending mechanism; The mesh connecting platform is used to receive the finished upper steel mesh or lower steel mesh.

[0013] In the preferred embodiment, the longitudinal reinforcement material preparation initial positioning conveying mechanism includes a plurality of equally spaced material preparation conveying mechanisms, and a plurality of longitudinal reinforcement material feeding mechanisms are staggeredly arranged at the end of the material preparation conveying mechanism; The material preparation conveying mechanism includes a sprocket, a conveying chain with a transmission sleeve on the sprocket, and a plurality of longitudinal rib positioning frames equidistantly arranged outside the conveying chain, the top of the longitudinal rib positioning frame is V-shaped, and the sprocket is driven by a motor; The longitudinal reinforcement feeding mechanism includes a column and a lifting feeding assembly arranged on both sides of the column. The two lifting feeding assemblies are respectively located on both sides of the end of the material preparation and conveying mechanism. The lifting feeding assembly includes a lifting slide arranged on the side of the column, a lifting slide slidably arranged on the lifting slide, a lifting electric cylinder arranged on the side of the column and having an output end connected to the lifting slide, a lifting arm connected to the lifting slide, and an electric conveying wheel arranged on the lifting arm; The transverse reinforcement welding and bending mechanism comprises a support frame, a longitudinal reinforcement positioning mechanism arranged at the front side of the support frame, a transverse reinforcement installation platform and a transverse reinforcement bending mechanism arranged in the support frame in sequence, a movable welding device arranged in the support frame and located above the transverse reinforcement installation platform, a traction movable platform arranged at the back side of the support frame, and a traction mechanism movably arranged on the traction movable platform and capable of passing through the support frame; The transverse reinforcement processing equipment comprises a transverse reinforcement round steel bar storage rack, a transverse reinforcement wire management frame, and a transverse reinforcement round steel bar straightening and shearing mechanism which are arranged in sequence. The discharging end of the transverse reinforcement round steel bar straightening and shearing mechanism corresponds to the transverse reinforcement installation platform.

[0014] In the preferred embodiment, the longitudinal rib positioning mechanism includes two support rods arranged on the front side of the support frame, first lifting electric cylinders respectively arranged on the two support rods, a positioning beam arranged on the output ends of the tops of the two first lifting electric cylinders, and a plurality of positioning rods equidistantly arranged on the positioning beam; The transverse reinforcement installation platform includes two second lifting electric cylinders arranged on the bottom crossbeam of the support frame and a mounting platform arranged on the top output ends of the two second lifting electric cylinders, and an automatic clamping claw for fixing the transverse reinforcement is arranged on the mounting platform; The mobile welding device includes a lifting frame that can be lifted and lowered through an electric screw and a supporting frame, a longitudinally movable crossbeam arranged in the supporting frame and can be longitudinally moved through a linear guide rail, a slide rail arranged on the longitudinally movable crossbeam, a plurality of self-driven welding carriages slidably arranged on the slide rails, a welding hook and a welding machine lifting electric cylinder arranged at the bottom of the self-driven welding carriage, and a welding head arranged on the output end of the lifting electric cylinder; The transverse rib bending mechanism includes two third lifting electric cylinders arranged on the bottom crossbeam of the support frame, a bending table arranged on the output ends of the tops of the two third lifting electric cylinders, and bending components symmetrically arranged at both ends of the bending table; The bending assembly includes a transverse moving slide arranged on the bending table, a longitudinal moving slide slidably arranged on the transverse moving slide, and a bending component slidably arranged on the longitudinal moving slide; The bending component includes an L-shaped machine base slidably arranged on the longitudinal moving slide, a driving motor and a support frame arranged on the L-shaped machine base, a driving gear arranged on the output end of the driving motor, a through bearing arranged on the side wall of the L-shaped machine base, a hollow sleeve penetrating the through bearing, a driven gear arranged outside the rear end of the hollow sleeve and meshing with the driving gear, an extension rod arranged on the side of the support frame and penetrating the hollow sleeve, an extension plate arranged at the other end of the extension rod, four interference blocks arranged on the other side of the extension plate and forming a cross groove therebetween, an expansion plate arranged on the outside of the side of the hollow sleeve close to the interference block, a connecting rod arranged at the edge of the side of the expansion plate close to the interference block, and a bending piece arranged at the other end of the connecting rod, wherein the bending piece is provided with an L-shaped bending groove corresponding to the cross groove; The traction movable platform comprises a transport frame, on which a rollable roller is arranged, and on two side walls of the transport frame, stepped racks and guide rails are symmetrically arranged; The traction mechanism includes a traction frame movably mounted on two guide rails through four sliders at the bottom, a traction drive motor is arranged on the side of the traction frame, the output shafts at both ends of the traction drive motor are connected with a transmission rod assembly, the other end of the transmission rod assembly is drivingly connected with a traction gear meshing with a rack, the other end of the traction frame is provided with an extension frame for passing through the support frame body, and the other end of the extension frame is provided with a plurality of tightening assemblies for clamping the end of the longitudinal reinforcement; The tightening assembly includes a base arranged on an extension frame, in which clamping arms hinged by shafts are symmetrically arranged, wherein one end of the shaft extends to the outside of the base and is provided with meshing clamping gears, a pushing electric cylinder is hingedly arranged on the base and the other end of the cylinder is hingedly connected to one of the clamping arms, clamping claws are arranged on opposite sides of the front ends of the two clamping arms, V-shaped grooves are arranged on opposite sides of the two clamping claws, and V-shaped anti-slip grooves are arranged on the V-shaped grooves.

[0015] In the preferred embodiment, a mesh assembly platform for assembling the lower steel mesh and the upper steel mesh is also included, the mesh assembly platform includes a concave platform, a lower support platform is arranged on the inner bottom wall of the concave platform, a plurality of lifting adjustment hydraulic cylinders and lifting beams are arranged on the two side walls of the concave platform, a plurality of corresponding groups of fitting grooves are arranged on the opposite sides of the two lifting beams, the fitting grooves penetrate the lifting beams horizontally, and an upper support beam is arranged in each group of fitting grooves; The assembly method of the lower steel mesh and the upper steel mesh is as follows: remove the upper support beam from the fitting groove, and hoist the formed lower steel mesh onto the lower support platform, then adjust the height of the two lifting beams through the lifting and adjusting hydraulic cylinder, and hoist the upper support beam onto it, and fit it with the fitting groove, then hoist the formed upper steel mesh onto the upper support platform, adjust the relative positions of the upper and lower steel meshes, and loosen the hook only after confirmation, weld the two together, then install the hook reinforcement between the two, pull out the upper support beam, and finally hoist the formed steel bar block.

[0016] The present invention provides a method and equipment for constructing prefabricated box girder steel bar components based on mesh assembly, by splitting the steel bar components into a plurality of steel bar blocks, and the steel bar blocks are assembled from two upper and lower steel bar meshes, so as to facilitate the production by industrial standardized equipment, and obtain high-precision steel bar meshes and steel bar blocks at the same time, thereby improving the overall quality of the steel bar components, and adopting a mechanized production method, which can greatly improve production efficiency and reduce labor intensity. For the construction site, this method can effectively reduce the number of construction workers on site, and only a small number of people are left on site to carry out modular assembly of box girder forming, which can greatly reduce the safety risks on the construction site. At the same time, since the box girder steel bar structures are all produced in factories, the construction window period can be effectively avoided, and the construction period of the construction enterprise can be escorted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of the steel mesh split from the steel block of the present invention; Figure 2 It is a schematic diagram of the unfolded planar structure of the steel mesh of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the steel bar component of the present invention; Figure 4 It is a schematic diagram of the block structure of the steel bar component of the present invention; Figure 5 It is a schematic diagram of the assembly process of the steel bar block of the present invention; Figure 6 It is a schematic diagram of the assembly process of steel bar parts of the present invention; Figure 7 It is a schematic diagram of the structure of the device of the present invention; Figure 8 It is a schematic diagram of the structure of the longitudinal reinforcement bundle straight reinforcement processing equipment of the present invention; Fig. 9 It is a structural schematic diagram of the longitudinal steel bar disc processing equipment of the present invention; Fig.10 This is a structural diagram of the connection between the transverse reinforcement processing equipment and the transverse reinforcement welding and bending mechanism of the present invention; Fig.11 It is a structural diagram of the connection between the material preparation and conveying mechanism and the longitudinal reinforcement feeding mechanism of the present invention; Fig.12 It is a structural diagram of the material preparation and conveying mechanism of the present invention; Fig.13 It is a structural diagram of the longitudinal reinforcement feeding mechanism of the present invention; Fig.14 This is a schematic diagram of the transverse reinforcement fabric of the present invention; Fig.15 This is a rear axle side structural diagram of the transverse reinforcement welding and bending mechanism of the present invention; Fig.16 This is a front-axis structural diagram of the transverse reinforcement welding and bending mechanism of the present invention; Fig.17 It is a structural diagram of the longitudinal reinforcement positioning mechanism of the present invention; Fig.18 It is a structural diagram of the mobile welding device of the present invention; Fig.19 It is a structural diagram of the transverse rib bending mechanism of the present invention; Fig. 20 It is a side view of the bending component structure of the present invention; Fig.21 It is a structural diagram of the tightening assembly of the present invention; Fig. 22 It is a side view of the structure of the tightening assembly of the present invention; Fig.23 This is a structural diagram of a mesh assembly platform of the present invention; In the figure: longitudinal reinforcement bundle straight reinforcement processing equipment 1; longitudinal reinforcement bar material storage rack 101; longitudinal reinforcement bar ladder feeding mechanism 102; longitudinal reinforcement bar conveying mechanism 103; butt welding machine 104; conveying mechanism 105 after butt welding; longitudinal reinforcement bar shearing mechanism 106; sizing and turning mechanism 107; longitudinal reinforcement round steel bar processing equipment 2; longitudinal reinforcement round steel bar storage rack 201; longitudinal reinforcement wire frame 202; longitudinal reinforcement round steel bar straightening and shearing mechanism 203; turning mechanism 204 after straightening and shearing; conveying mechanism 205 after straightening and shearing; longitudinal reinforcement material preparation initial positioning conveying mechanism 3; material preparation conveying mechanism 31; sprocket 310; conveying chain 311; longitudinal reinforcement positioning frame 312 ; Longitudinal reinforcement feeding mechanism 32; column 321; lifting slide 322; lifting slide 323; lifting electric cylinder 324; lifting arm 325; electric conveying wheel 326; transverse reinforcement processing equipment 4; transverse reinforcement round steel bar storage rack 401; transverse reinforcement wire arranging frame 402; transverse reinforcement round straightening and shearing mechanism 403; transverse reinforcement welding and bending mechanism 5; support frame 51; longitudinal reinforcement positioning mechanism 52; support rod 521; first lifting electric cylinder 522; positioning beam 523; positioning rod 524; transverse reinforcement installation platform 53; second lifting electric cylinder 531; installation platform 532; transverse reinforcement bending mechanism 54; bending platform 541; horizontal moving slide 542 ... mounting platform 53; second lifting electric cylinder 531; installation platform 532; transverse reinforcement bending mechanism 54; bending platform 541; horizontal moving slide 542; longitudinal reinforcement positioning mechanism 52; support rod 521; first lifting electric cylinder 522; positioning beam 523; positioning rod 524; trans The movable slide 543; the bending part 544; the L-shaped machine base 545; the driving motor 5451; the driving gear 5452; the through bearing 5453; the hollow sleeve 5454; the driven gear 5455; the support frame 5456; the extension rod 5457; the extension plate 5458; the resistance block 5459; the expansion plate 5460; the connecting rod 5461; the bending part 5462; the traction movable platform 55; the transport frame 551; the roller 552; the guide rail 553; the rack 554; the traction mechanism 56; the traction frame 561; the traction driving motor 562; the traction gear 563; the extension frame 564; the tightening assembly 57; the base 571; Clamping arm 572; clamping claw 573; clamping gear 574; pushing electric cylinder 575; mobile welding device 58; electric screw 581; lifting frame 582; longitudinal moving beam 583; self-driven welding carriage 584; welding machine lifting electric cylinder 585; welding head 586; welding hook 587; mesh connection platform 6; upper steel mesh 7; lower steel mesh 8; transverse reinforcement 9; longitudinal reinforcement 10; chamfered stirrups 11; positioning steel mesh 12; corrugated pipe 13; prestressed reinforcement 14; mesh assembly platform 15; concave platform 151; lower support platform 152; lifting and adjusting hydraulic cylinder 153; lifting beam 154; matching groove 155; upper support beam 156. DETAILED DESCRIPTION

[0018] Example 1 like Figure 1-6As shown, a method for constructing prefabricated box beam reinforcement components based on mesh assembly includes: S1, splitting the steel bar block of the assembled steel bar component into a lower steel bar mesh 8 and an upper steel bar mesh 7, and completing the production of the lower steel bar mesh 8 and the upper steel bar mesh 7 in sequence; S2, the lower steel mesh 8 is made, and the plurality of longitudinal bars 10 are arranged neatly according to the design size; S3, inserting the transverse reinforcement 9 of the lower steel mesh 8 into the bottom of the plurality of longitudinal reinforcements 10, and welding the transverse reinforcement 9 to the longitudinal reinforcement 10, and then bending the transverse reinforcement 9 into a U-shape with the side walls extending inward, the bending method of the transverse reinforcement 9 is a secondary bending method, specifically: firstly bending the transverse reinforcement 9 into a U-shape, and then bending it into a U-shape with two side walls extending inward by secondary bending; S4, pulling the longitudinal reinforcement 10 to continue to move for a certain distance, and repeating step S3 until all the transverse reinforcements 9 are installed; S5, making the upper steel mesh 7, arranging the plurality of longitudinal bars 10 in an orderly manner according to the design size; S6, inserting the transverse reinforcement 9 of the upper steel mesh 7 transversely into the top of the plurality of longitudinal reinforcements 10, and welding the transverse reinforcement 9 to the longitudinal reinforcement 10; S7, pulling the longitudinal reinforcement 10 to continue to move for a certain distance, and repeating step S6 until all the transverse reinforcements 9 are installed; S8, hoisting the upper steel mesh 7 above the lower steel mesh 8, and welding the two together, and finally installing hook bars between the upper steel mesh 7 and the lower steel mesh 8; The production of the steel bar block is completed through the above steps.

[0019] S9, respectively manufacturing a bottom plate body 300, two groups of web plate bodies 200 and a top plate body 100, and reserving 10 longitudinal reinforcements in the overlapping area during assembly; S10, hoisting the bottom plate body 300, two sets of web plate bodies 200 and the top plate body 100 into the assembly frame in sequence, and assembling them into shape by welding; S11, then insert the corresponding longitudinal reinforcement 10 into the reserved longitudinal reinforcement 10 positions in the overlapped area, and tie or weld them; S12, tying or welding chamfered stirrups 11 between two groups of web plate bodies 200 and top plate bodies 100; S13, finally installing the positioning steel mesh 12 according to the drawing, and inserting the corrugated pipe 13 and the prestressed tendons 14 in the positioning steel mesh 12 in sequence; The above steps are used to manufacture steel bar parts.

[0020] Wherein, the longitudinal reinforcement 10 is made of bundled straight reinforcement or disc reinforcement; The method of making bundled straight reinforcement is as follows: first, the bundled straight reinforcement is broken up, and the bundled straight reinforcement is welded one by one to lengthen, and then the designed length is installed and cut to a fixed length to form longitudinal reinforcement 10; The method of making the round steel bar is as follows: straighten the round steel bar, install it and cut it to a fixed length to form the longitudinal reinforcement 10.

[0021] In addition, the transverse reinforcement 9 is made of round steel bars, specifically: the round steel bars are straightened, and the designed length is installed and cut to a fixed length to form the transverse reinforcement 9 In the preferred embodiment, the assembly of the lower steel mesh 8 and the upper steel mesh 7 is completed on the transverse reinforcement welding and bending mechanism 5, and the transverse reinforcement welding and bending mechanism 5 is provided with a longitudinal reinforcement positioning mechanism 52 and a traction mechanism 56. The ends of the neatly arranged longitudinal reinforcements 10 pass through the longitudinal reinforcement positioning mechanism 52 and are connected to the traction mechanism 56, and the longitudinal reinforcements 10 are pulled as a whole through the transverse reinforcement welding and bending mechanism 5 by the traction mechanism 56. When in use, the traction mechanism 56 simultaneously clamps the neatly arranged multiple longitudinal reinforcements 10 and pulls them, so that the longitudinal reinforcements 10 pass through the transverse reinforcement welding and bending mechanism 5 under the traction of the traction mechanism 56; In addition, a mobile welding device 58 and a transverse reinforcement bending mechanism 54 are provided on the transverse reinforcement welding and bending mechanism 5. When the longitudinal reinforcement 10 passes through the transverse reinforcement welding and bending mechanism 5, the transverse reinforcements 9 are inserted into the longitudinal reinforcement 10 one by one, and the welding and bending work are completed by the mobile welding device 58 and the transverse reinforcement bending mechanism 54.

[0022] It should be noted that, in the present embodiment, the transverse reinforcement 9 of the lower steel mesh 8 needs to be bent into a U-shape with the side walls extending inward by a transverse reinforcement bending mechanism 54, and the transverse reinforcement 9 of the lower steel mesh 8 is located at the bottom of the longitudinal reinforcement 10, and the transverse reinforcement 9 of the upper steel mesh 7 is located at the top of the longitudinal reinforcement 10. In addition, the transverse reinforcement 9 in the U-shape extending inward from the side walls is convenient for welding with the top transverse reinforcement 9. Secondly, in the present embodiment, the connection between the lower steel mesh 8 and the upper steel mesh 7 is welded by carbon dioxide gas shielded welding, and the single-sided weld length should meet 10d, and the double-sided weld length should meet 5d, where d is the diameter of the transverse reinforcement.

[0023] In the preferred embodiment, the mobile welding device 58 is provided with an identification device for identifying the position of the welding point between the transverse reinforcement 9 and the longitudinal reinforcement 10; The recognition device uses a dual-camera visual positioning recognition method with a specific spacing, binarizes the collected dual-camera images, marks the intersection position within the current field of view, and uses the dual-camera image visual difference combined with trigonometric functions to calculate the intersection position coordinates. The intersection position coordinates are compared with the design coordinates. When the error value is within the preset range, welding is performed at the intersection position. If the error value exceeds the preset range, the current welding point is skipped, the next welding point is processed, and an alarm is issued. The mobile welding device 58 is driven by a Cartesian coordinate mechanism.

[0024] In the preferred solution, after the steel bar block is manufactured, a camera is set at a preset position, and the camera is used to collect images from the axial direction of the longitudinal bar 10 to detect the position of the longitudinal bar 10, compare the position of the longitudinal bar 10 with the design position, and adjust and correct the position of the longitudinal bar 10 that does not meet the requirements. This detection allows the longitudinal bars of the box girder steel bar parts of each warehouse to be aligned one by one, which is convenient for one-to-one connection.

[0025] Before detecting the position of the longitudinal reinforcement 10, a steel bar block corresponding to the first bin is made according to the design size, a camera at a fixed position captures an image of the steel bar block in the first bin, and the position of the longitudinal reinforcement 10 is identified by artificial intelligence and converted into a coordinate array, and the coordinate array of the position of the longitudinal reinforcement 10 is stored; The specific identification steps are to set a high-brightness light source around the camera, such as a high-brightness LED light source or a hernia light source, and use the high-brightness light source to illuminate the end face of the longitudinal reinforcement 10. Perform regional brightness filtering on the captured image, that is, select pixels with brightness within a range, and then track the contour of the selected area after selection, that is, perform vector ellipse fitting on the selected contour, and filter the vector fitting pattern in a circular or elliptical shape according to the image of the steel bar block in the first bin, retain the vector pattern that conforms to the end face of the longitudinal reinforcement 10, and use the midpoint of the vector pattern as the coordinate array of each longitudinal reinforcement 10. Since the camera uses a fixed-position fixed-focus lens, the image acquired by the camera is repeatable. It can assist in adjusting the position of the longitudinal reinforcement 10 to facilitate the precise docking of the longitudinal reinforcement 10 between the bins, such as group welding docking or threaded sleeve docking, to ensure construction quality.

[0026] When photographing the steel bar component in the subsequent bin, ensure that the axial position of the end of the longitudinal bar 10 is the same as the axial position of the end of the longitudinal bar 10 in the first bin, so as to avoid errors caused by perspective deformation of the image.

[0027] An image of the steel bar component in the subsequent warehouse is captured, and the position of the longitudinal reinforcement 10 is identified by artificial intelligence and converted into a coordinate array, which is then compared with the coordinate array of the position of the longitudinal reinforcement 10 in the steel bar component in the first warehouse; The longitudinal reinforcement 10 whose position error exceeds the preset value range is corrected; while the longitudinal reinforcement 10 whose error is within the preset value range does not need to be corrected.

[0028] In the preferred solution, after the assembly of the box girder steel bar components is completed, the end of the box girder steel bar components is imaged again to identify the position of the longitudinal reinforcement 10, and the longitudinal reinforcement 10 position of the first bin box girder steel bar components is compared, and the longitudinal reinforcement 10 position that does not meet the requirements is adjusted and corrected. Since the adjustment has been made in the stage of making the steel bar block, a simple algorithm can be used in this step, that is, the end face coordinates of 2 to 3 longitudinal reinforcements 10 in a steel bar block are used as the basis for comparison, thereby greatly simplifying the algorithm. If there is a problem that the error exceeds the preset value, it is only necessary to adjust the position between the steel bar blocks, thereby saving a lot of longitudinal reinforcement end adjustment and correction work. After the subsequent hoisting, the adjustment work in the casting bin is also very little, and the precision control of the longitudinal reinforcement position of the box girder steel bar components is achieved through the above steps. After measurement, through the image detection based on artificial intelligence and the correction operation of the longitudinal reinforcement 10, the workload of workers in adjusting the steel bars in the casting bin is greatly reduced, the labor intensity is reduced, and the installation efficiency of the steel bar components is improved.

[0029] Example 2 Further illustrate with reference to Example 1, Figure 7-23 The structure shown is based on the prefabricated box beam reinforcement parts construction equipment assembled by mesh, including The longitudinal reinforcement material preparation initial positioning conveying mechanism 3 completes the material preparation and conveying of the longitudinal reinforcements 10 one by one, and arranges the longitudinal reinforcements 10 neatly at the end to complete the initial positioning of the longitudinal reinforcements 10; The transverse reinforcement welding and bending mechanism 5 is connected to the longitudinal reinforcement material preparation initial positioning and conveying mechanism 3, and is used to pull the longitudinal reinforcement 10 through itself, and weld and bend the inserted transverse reinforcement 9; The transverse reinforcement processing device 4 is connected to the transverse reinforcement welding and bending mechanism 5, and is used to process the transverse reinforcement 9 of the required size and insert it into the transverse reinforcement welding and bending mechanism 5; The mesh connection platform 6 is used to receive the finished upper steel mesh 7 or lower steel mesh 8.

[0030] When in use, the longitudinal reinforcements 10 are conveyed one by one to the feeding end of the transverse reinforcement welding and bending mechanism 5 through the longitudinal reinforcement preparation initial positioning conveying mechanism 3, so that the longitudinal reinforcements 10 are arranged neatly, and are sent into the transverse reinforcement welding and bending mechanism 5 to complete the insertion, welding and bending of the transverse reinforcement 9, and finally the finished upper steel mesh 7 or lower steel mesh 8 is received by the mesh connecting platform 6.

[0031] In the preferred embodiment, the longitudinal reinforcement material preparation initial positioning conveying mechanism 3 includes a plurality of equally spaced material preparation conveying mechanisms 31, the number and arrangement spacing of the material preparation conveying mechanisms 31 are determined according to the required length of the longitudinal reinforcement 10, and a plurality of longitudinal reinforcement feeding mechanisms 32 are staggeredly arranged at the end of the material preparation conveying mechanism 31, which are used to feed the longitudinal reinforcement 10 into the transverse reinforcement welding and bending mechanism 5; The material preparation conveying mechanism 31 includes a sprocket 310, a conveying chain 311 which is driven by the sprocket 310, and a plurality of longitudinal rib positioning frames 312 which are equidistantly arranged outside the conveying chain 311. The top of the longitudinal rib positioning frame 312 is V-shaped. The sprocket 310 is driven by a motor. When in use, the longitudinal reinforcement 10 is connected through the V-shaped longitudinal reinforcement positioning frame 312, and the sprocket 310 and the conveying chain 311 are driven by the motor to run and feed the materials. After each longitudinal reinforcement 10 is connected, it automatically moves to the corresponding spacing to prepare for the connection of the next longitudinal reinforcement, so that the longitudinal reinforcements 10 are neatly arranged at the end.

[0032] The longitudinal reinforcement feeding mechanism 32 includes a column 321 and a lifting feeding assembly arranged on both sides of the column 321. The two lifting feeding assemblies are respectively located on both sides of the end of the material preparation and conveying mechanism 31. The lifting feeding assembly includes a lifting slide 322 arranged on the side of the column 321, a lifting slide 323 slidably arranged on the lifting slide 322, a lifting electric cylinder 324 arranged on the side of the column 321 and the output end of which is connected to the lifting slide 323, a lifting arm 325 connected to the lifting slide 323, and an electric conveying wheel 326 arranged on the lifting arm 325. The lifting slide 323 is pushed up and down on the lifting slide 322 by the lifting electric cylinder 324, so as to adjust the height of the lifting arm 325 and the electric conveying wheel 326. When in use, when the longitudinal reinforcement 10 reaches the quantity and position required by the design, the lifting arm 325 and the electric conveying wheel 326 are used to lift the longitudinal reinforcement 10 through the lifting electric cylinder 324, and the longitudinal reinforcement 10 is transmitted forward through the operation of the electric conveying wheel 326, so as to send the longitudinal reinforcement 10 into the transverse reinforcement welding and bending mechanism 5.

[0033] In the preferred embodiment, the transverse reinforcement welding and bending mechanism 5 includes a support frame 51, a longitudinal reinforcement positioning mechanism 52 arranged on the front side of the support frame 51, a transverse reinforcement installation platform 53 and a transverse reinforcement bending mechanism 54 arranged in the support frame 51 in sequence, a mobile welding device 58 arranged in the support frame 51 and located above the transverse reinforcement installation platform 53, a traction movable platform 55 arranged on the back side of the support frame 51, and a traction mechanism 56 movably arranged on the traction movable platform 55 and capable of passing through the support frame 51; When in use, when the longitudinal reinforcement 10 enters the transverse reinforcement welding and bending mechanism 5, it first needs to pass through the longitudinal reinforcement positioning mechanism 52 for positioning to ensure that the designed spacing is reached, and then the end of the longitudinal reinforcement 10 is clamped by the traction mechanism 56, and the reinforcement is pulled through the transverse reinforcement welding and bending mechanism 5. When the longitudinal reinforcement 10 reaches the transverse reinforcement installation platform 53, the traction is stopped, and the transverse reinforcement 9 is inserted according to the designed position, and the transverse reinforcement 9 passes through all the longitudinal reinforcements 10, and then the transverse reinforcement 9 and the longitudinal reinforcement 10 are welded by the mobile welding device 58. After welding is completed, the longitudinal reinforcement 10 continues to be pulled and the transverse reinforcement 9 reaches the transverse reinforcement bending mechanism 54, and the traction is stopped. The transverse reinforcement 9 is bent by the transverse reinforcement bending mechanism 54, and this process is repeated until all the transverse reinforcements 9 are installed and the mesh is pulled to the traction movable platform 55. It should be noted that the upper steel mesh 7 can skip the process of moving the welding device 58.

[0034] The longitudinal reinforcement positioning mechanism 52 includes two support rods 521 welded on the front side of the support frame 51, first lifting electric cylinders 522 respectively arranged on the two support rods 521, a positioning beam 523 fixed on the top output ends of the two first lifting electric cylinders 522, and a plurality of positioning rods 524 fixed on the positioning beam 523 at equal intervals. The positioning rods 524 and the positioning beam 523 can achieve the effect of adjusting the height through the first lifting electric cylinder 522. When the longitudinal reinforcement 10 passes through the plurality of equally spaced positioning rods 524 under the conveyance of the longitudinal reinforcement feeding mechanism 32, the positioning effect can be achieved through the positioning rods 524. In the preferred embodiment, the transverse reinforcement installation platform 53 includes two second lifting electric cylinders 531 arranged on the bottom crossbeam of the support frame 51 and a mounting platform 532 arranged on the top output ends of the two second lifting electric cylinders 531. The mounting platform 532 is provided with an automatic clamp for fixing the transverse reinforcement 9. The automatic clamp is a commercially available product. When the longitudinal reinforcement 10 is pulled onto the mounting platform 532, the transverse reinforcement 9 is inserted into the mounting platform 532 from the side and clamped by the automatic clamp. When the welding work is completed, the automatic clamp is released to allow the transverse reinforcement 9 to continue to move forward. The second lifting electric cylinder 531 is convenient for adjusting the height of the mounting platform 532. In the preferred embodiment, the mobile welding device 58 includes a lifting frame 582 that can be lifted and lowered through an electric screw 581 and a support frame 51, a longitudinal movable beam 583 disposed in the support frame 51 and movable longitudinally through a linear guide rail, a slide rail 588 disposed on the longitudinal movable beam 583, a plurality of self-driven welding carriages 584 slidably disposed on the slide rail 588, a welding hook 587 and a welding machine lifting cylinder 585 disposed at the bottom of the self-driven welding carriage 584, and a welding head 586 disposed at the output end of the lifting cylinder 585. Cartesian coordinate drive is realized through the three-axis movement of the electric screw 581, the linear guide rail and the self-driven welding carriage 584. In addition, an identification device is provided on the self-driven welding carriage 584 for identifying the position of the welding point according to the design requirements. In the preferred embodiment, the rib bending mechanism 54 includes two third lifting electric cylinders 546 arranged on the bottom crossbeam of the support frame 51, a bending table 541 arranged on the top output ends of the two third lifting electric cylinders 546, and bending components symmetrically arranged at both ends of the bending table 541; The bending assembly includes a transverse moving slide 542 arranged on the bending table 541, a longitudinal moving slide 543 slidably arranged on the transverse moving slide 542, and a bending component 544 slidably arranged on the longitudinal moving slide 543; The bending component 544 includes an L-shaped machine base 545 slidably arranged on the longitudinal moving slide 543, a driving motor 5451 and a support frame 5456 arranged on the L-shaped machine base 545, a driving gear 5452 arranged on the output end of the driving motor 5451, a through bearing 5453 arranged on the side wall of the L-shaped machine base 545, a hollow sleeve 5454 penetrating the through bearing 5453, a driven gear 5455 arranged outside the rear end of the hollow sleeve 5454 and meshing with the driving gear 5452, and a driven gear 5455 arranged on the side of the support frame 5456. An extension rod 5457 passing through the hollow sleeve 5454, an extension plate 5458 arranged at the other end of the extension rod 5457, four abutment blocks 5459 arranged at the other side of the extension plate 5458 and forming a cross groove therebetween, an expansion plate 5460 arranged at the outside of the hollow sleeve 5454 near the abutment block 5459, a connecting rod 5461 arranged at the edge of the expansion plate 5460 near the abutment block 5459, and a bending piece 5462 arranged at the other end of the connecting rod 5461, wherein the bending piece 5462 is provided with an L-shaped bending groove corresponding to the cross groove; When in use, when the transverse rib 10 reaches the bending position of the transverse rib bending mechanism 54, the bending component 544 is raised to a corresponding height by the third lifting electric cylinder 546, and the bending component 544 is moved to the bending point of the transverse rib 10 by the transverse moving slide 542, and then the bending component 544 is longitudinally moved by the longitudinal moving slide 543 until the transverse rib 10 is stuck in the cross grooves of the four abutment blocks 5459 and the L-shaped bending groove of the bending component 5462, and then the bending component 5462 is driven to rotate by the driving motor 5451, so that the transverse rib 10 is restricted by the abutment blocks 5459. The bending is completed, and then the bending component 544 is moved by the longitudinal moving slide 543 to make it withdraw from the transverse rib 10, and then the bending component 544 is lifted to the second bending point by the third lifting cylinder 546, and the bending component 544 is moved by the longitudinal moving slide 543 until the transverse rib 10 is again stuck in the cross grooves of the four resistance blocks 5459 and the L-shaped bending groove of the bending component 5462, and the bending component 5462 is rotated again to perform a second bending, so that the transverse rib is bent into a U-shape with the side walls extending inward, and the bending component 5462 is reset and installed and lowered along the original path.

[0035] In the preferred embodiment, the traction movable platform 55 includes a transport frame 551, on which a rollable roller 552 is disposed, and on two side walls of the transport frame 551, a stepped rack 554 and a guide rail 553 are symmetrically disposed; The traction mechanism 56 includes a traction frame 561 movably mounted on two guide rails 553 through four sliders at the bottom. The cross-sections of the slider and the guide rail 553 are both T-shaped. A traction drive motor 562 is arranged on the side of the traction frame 561. The output shafts at both ends of the traction drive motor 562 are connected with transmission rod assemblies. The transmission rod assembly consists of a transmission rod and a supporting bearing. The other end of the transmission rod assembly is transmission-connected with a traction gear 563 meshing with the rack 554. The other end of the traction frame 561 is provided with an extension frame 564 for passing through the support frame 51. The other end of the extension frame 564 is provided with a plurality of tightening assemblies 57 for clamping the ends of 10 longitudinal ribs. The traction drive motor 562 drives the traction gear 563 to rotate on the rack 554 to achieve the traction effect.

[0036] In the preferred embodiment, the tightening assembly 57 includes a base 571 fixed on the extension frame 564, and clamping arms 572 hinged by axes are symmetrically arranged in the base 571, wherein one end of the axis extends to the outside of the base 571 and is provided with a meshing clamping gear 574, and a pushing electric cylinder 575 is hingedly arranged on the base 571, and the other end of the pushing electric cylinder is hingedly connected to one of the clamping arms 572, and the opposite sides of the front ends of the two clamping arms 572 are provided with clamping claws 573, and the opposite sides of the two clamping claws 573 are provided with V-shaped grooves, and the V-shaped grooves are provided with V-shaped anti-slip grooves, and the two clamping claws 573 can be pushed to clamp and release by extending and retracting the pushing electric cylinder 575.

[0037] In the preferred embodiment, the transverse reinforcement processing equipment 4 includes a transverse reinforcement round steel bar storage rack 401, a transverse reinforcement wire management frame 402, and a transverse reinforcement round steel bar straightening and shearing mechanism 403 arranged in sequence. The discharging end of the transverse reinforcement round steel bar straightening and shearing mechanism 403 corresponds to the transverse reinforcement installation platform 53, so that the transverse reinforcement 9 can be directly inserted into the transverse reinforcement installation platform 53.

[0038] In the preferred embodiment, it further comprises a longitudinal bar bundle straight bar processing device 1, which is used to process the bundled straight bars into longitudinal bars 10 of required size, wherein the longitudinal bar bundle straight bar processing device 1 comprises a longitudinal bar bar material storage rack 101, a longitudinal bar bar ladder feeding mechanism 102, a longitudinal bar bar material conveying mechanism 103, a butt welding machine 104, a butt welding post-conveyoring mechanism 105, a longitudinal bar bar material shearing mechanism 106 and a sizing and turning mechanism 107 which are arranged in sequence; When in use, the bundled straight bars are scattered and placed on the longitudinal bar storage rack 101, and are sequentially transported to the butt welding machine 104 through the longitudinal bar step feeding mechanism 102 and the longitudinal bar conveying mechanism 103 for butt welding length, and then transported by the butt welding post-conveying mechanism 105 through the longitudinal bar shearing mechanism 106 to the sizing and turning mechanism 107. After being sized by the sizing and turning mechanism 107, the longitudinal bar shearing mechanism 106 performs shearing and blanking, and finally the sheared longitudinal bar is transported to the longitudinal bar preparation initial positioning conveying mechanism 3 by the straightening and shearing post-conveying mechanism 205; In the preferred embodiment, it also includes a longitudinal steel bar disc processing device 2, which is used to process the disc steel bar into the longitudinal steel bar 10 of the required size, wherein the longitudinal steel bar disc processing device 2 includes a longitudinal steel bar disc storage rack 201, a longitudinal steel bar wire arrangement frame 202, a longitudinal steel bar disc straightening and shearing mechanism 203, a straightening and shearing post-turning mechanism 204 and a straightening and shearing post-conveying mechanism 205, and the straightening and shearing post-conveying mechanism 205 is connected to the sizing and turning mechanism 107; When in use, the coiled round steel bar is hung on the longitudinal steel bar coiled round steel bar storage rack 201, and one end of the coiled round steel bar is passed through the longitudinal steel bar wire-arranging frame 202 and inserted into the longitudinal steel bar coiling straightening and shearing mechanism 203. After being straightened and cut to size by the longitudinal steel bar coiling straightening and shearing mechanism 203, it is transported to the straightening and shearing post-material turning mechanism 204 to the straightening and shearing post-material turning mechanism 205, and then transported to the size-setting and material turning mechanism 107 by the straightening and shearing post-material turning mechanism 205. The sizing and turning mechanism 107 is connected to the feeding end of the longitudinal reinforcement material initial positioning conveying mechanism 3 .

[0039] It should be noted that the equipment in the longitudinal reinforcement bundle straight reinforcement processing equipment 1, the longitudinal reinforcement disc reinforcement processing equipment 2 and the transverse reinforcement processing equipment 4 are all mature equipment in the field, so they will not be described in detail here.

[0040] In the preferred embodiment, a mesh assembly platform 15 for assembling the lower steel mesh 8 and the upper steel mesh 7 is further included. The mesh assembly platform 15 includes a concave platform 151. A lower support platform 152 is provided on the inner bottom wall of the concave platform 151. A plurality of lifting adjustment hydraulic cylinders 153 and lifting beams 154 are provided on both side walls of the concave platform 151. A plurality of corresponding groups of fitting grooves 155 are provided on opposite sides of the two lifting beams 154. The fitting grooves 155 extend horizontally through the lifting beams 154. An upper support beam 156 is provided in each group of fitting grooves 155. The assembly method of the lower steel mesh 8 and the upper steel mesh 7 is as follows: remove the upper support beam 156 from the fitting groove 155, and hoist the formed lower steel mesh 8 onto the lower support platform 152, then adjust the height of the two lifting beams 154 by the lifting and adjusting hydraulic cylinder 153, and hoist the upper support beam 156 onto it, and fit it with the fitting groove 155, then hoist the formed upper steel mesh 7 onto the upper support platform 156, adjust the relative positions of the upper and lower steel meshes, and loosen the hook only after confirmation, weld the two together, then install the hook reinforcement between the two, and pull out the upper support beam 156, and finally hoist the formed steel bar block.

[0041] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A method for constructing prefabricated box girder steel bar components based on mesh assembly, characterized in that The method includes: S1, splitting the steel bar block of the assembled steel bar component into a lower steel bar mesh (8) and an upper steel bar mesh (7), and completing the production of the lower steel bar mesh (8) and the upper steel bar mesh (7) in sequence; S2, manufacturing the lower steel mesh (8), arranging the plurality of longitudinal bars (10) in an orderly manner according to the design dimensions; S3, inserting the transverse reinforcement (9) of the lower steel mesh (8) transversely into the bottom of the plurality of longitudinal reinforcements (10), welding the transverse reinforcement (9) to the longitudinal reinforcement (10), and then bending the transverse reinforcement (9) into a U-shape with the side walls extending inwards; S4, pulling the longitudinal reinforcement (10) to continue to move for a certain distance, and repeating step S3 until all the transverse reinforcements (9) are installed; S5, manufacturing the upper steel mesh (7), arranging the plurality of longitudinal bars (10) in an orderly manner according to the design dimensions; S6, inserting the transverse reinforcement (9) of the upper steel mesh (7) transversely into the top of the plurality of longitudinal reinforcements (10), and welding the transverse reinforcement (9) and the longitudinal reinforcement (10); S7, pulling the longitudinal reinforcement (10) to continue to move a certain distance, and repeating step S6 until all the transverse reinforcements (9) are installed; S8, hoisting the upper steel mesh (7) above the lower steel mesh (8), welding the two together, and finally installing hook bars between the upper steel mesh (7) and the lower steel mesh (8); The production of the steel bar block is completed through the above steps.

2. The method for constructing prefabricated box beam reinforcement components based on mesh assembly according to claim 1 is characterized by: The bending method of the transverse rib (9) in step S3 is secondary bending, specifically: firstly, the transverse rib (9) is bent into a U-shape, and then, through secondary bending, it is bent into a U-shape with two side walls extending inwards.

3. The method for constructing prefabricated box beam reinforcement components based on mesh assembly according to claim 1 is characterized by: The longitudinal reinforcement (10) is made of bundled straight reinforcement or disc reinforcement; The method of making bundled straight bars is as follows: first, the bundled straight bars are broken up, and they are welded one by one to lengthen, and then they are installed to a designed length and cut to a fixed length to form longitudinal bars (10); The method of making the round steel bar is as follows: straighten the round steel bar, install it in the designed length, cut it to a fixed length, and form the longitudinal reinforcement (10); The transverse reinforcement (9) is made of a round steel bar, specifically, the round steel bar is straightened, and the round steel bar is installed and cut to a fixed length to form the transverse reinforcement (9).

4. The method for constructing prefabricated box beam reinforcement components based on mesh assembly according to claim 1 is characterized by: The assembly of the lower steel mesh (8) and the upper steel mesh (7) is completed on the transverse steel bar welding and bending mechanism (5), and the transverse steel bar welding and bending mechanism (5) is provided with a longitudinal steel bar positioning mechanism (52) and a pulling mechanism (56), and the ends of the neatly arranged longitudinal steel bars (10) pass through the longitudinal steel bar positioning mechanism (52) and are connected to the pulling mechanism (56), and the longitudinal steel bars (10) are pulled as a whole through the transverse steel bar welding and bending mechanism (5) by the pulling mechanism (56); The transverse reinforcement welding and bending mechanism (5) is provided with a movable welding device (58) and a transverse reinforcement bending mechanism (54). When the longitudinal reinforcement (10) passes through the transverse reinforcement welding and bending mechanism (5), the transverse reinforcements (9) are inserted into the longitudinal reinforcements (10) one by one, and the welding and bending work is completed by the movable welding device (58) and the transverse reinforcement bending mechanism (54).

5. The method for constructing prefabricated box beam reinforcement components based on mesh assembly according to claim 4 is characterized by: The mobile welding device (58) is provided with an identification device for identifying the position of the welding point between the transverse reinforcement (9) and the longitudinal reinforcement (10); The recognition device uses a dual-camera visual positioning recognition method with a specific spacing, binarizes the collected dual-camera images, marks the intersection position within the current field of view, and uses the dual-camera image visual difference combined with trigonometric functions to calculate the intersection position coordinates. The intersection position coordinates are compared with the design coordinates. When the error value is within the preset range, welding is performed at the intersection position. If the error value exceeds the preset range, the current welding point is skipped, the next welding point is processed, and an alarm is issued. The mobile welding device (58) is driven by a Cartesian coordinate mechanism.

6. The method for constructing prefabricated box girder reinforcement components based on mesh assembly according to any one of claims 1 to 5, characterized in that: The following steps are also included: S9, respectively manufacturing a bottom plate body (300), two groups of web plate bodies (200) and a top plate body (100), and reserving longitudinal reinforcement (10) positions in the overlapping area during assembly; S10, hoisting the bottom plate body (300), two sets of belly plate bodies (200) and the top plate body (100) into the assembly frame in sequence, and assembling them into shape by welding; S11, then insert corresponding longitudinal reinforcement (10) into the reserved longitudinal reinforcement (10) position in the overlapped area, and perform binding or welding; S12, tying or welding chamfered stirrups (11) between two groups of web plate bodies (200) and top plate bodies (100); S13, finally installing the positioning steel mesh (12) according to the drawing, and inserting the corrugated tube (13) and the prestressed steel bars (14) in the positioning steel mesh (12) in sequence; The above steps are used to manufacture steel bar parts.

7. Prefabricated box girder reinforcement component manufacturing equipment based on mesh assembly, characterized by: include The longitudinal reinforcement material initial positioning conveying mechanism (3) completes the material conveying of the longitudinal reinforcement (10) one by one, and arranges the longitudinal reinforcement (10) neatly at the end to complete the initial positioning of the longitudinal reinforcement (10); The transverse reinforcement welding and bending mechanism (5) is connected to the longitudinal reinforcement material preparation initial positioning and conveying mechanism (3), and is used to pull the longitudinal reinforcement (10) through itself, and to weld and bend the inserted transverse reinforcement (9); A transverse reinforcement processing device (4) is connected to the transverse reinforcement welding and bending mechanism (5), is used to process transverse reinforcements (9) of required size, and is inserted into the transverse reinforcement welding and bending mechanism (5); The mesh connection platform (6) is used to receive the finished upper steel mesh sheet (7) or lower steel mesh sheet (8).

8. The mesh-based prefabricated box girder reinforcement component manufacturing equipment according to claim 7 is characterized in that: The longitudinal reinforcement material preparation initial positioning conveying mechanism (3) comprises a plurality of material preparation conveying mechanisms (31) arranged at equal distances, and a plurality of longitudinal reinforcement feeding mechanisms (32) are arranged in a staggered manner at the ends of the material preparation conveying mechanisms (31); The material preparation conveying mechanism (31) comprises a sprocket (310), a conveying chain (311) which is driven and sleeved on the sprocket (310), and a plurality of longitudinal rib positioning frames (312) which are equidistantly arranged outside the conveying chain (311), wherein the top end of the longitudinal rib positioning frames (312) is V-shaped, and the sprocket (310) is driven by a motor; The longitudinal reinforcement feeding mechanism (32) comprises a column (321) and lifting feeding assemblies arranged on both sides of the column (321), the two lifting feeding assemblies are respectively located on both sides of the end of the material preparation and conveying mechanism (31), and the lifting feeding assemblies comprise a lifting slide (322) arranged on the side of the column (321), a lifting slide (323) slidably arranged on the lifting slide (322), a lifting electric cylinder (324) arranged on the side of the column (321) and having an output end connected to the lifting slide (323), a lifting arm (325) connected to the lifting slide (323), and an electric conveying wheel (326) arranged on the lifting arm (325); The transverse reinforcement welding and bending mechanism (5) comprises a support frame (51), a longitudinal reinforcement positioning mechanism (52) arranged at the front side of the support frame (51), a transverse reinforcement mounting platform (53) and a transverse reinforcement bending mechanism (54) arranged in the support frame (51) in sequence, a movable welding device (58) arranged in the support frame (51) and located above the transverse reinforcement mounting platform (53), a traction movable platform (55) arranged at the back side of the support frame (51), and a traction mechanism (56) movably arranged on the traction movable platform (55) and capable of passing through the support frame (51); The transverse reinforcement processing equipment (4) comprises a transverse reinforcement round steel bar storage rack (401), a transverse reinforcement wire arrangement frame (402), and a transverse reinforcement round steel bar straightening and shearing mechanism (403) which are arranged in sequence. The transverse reinforcement round steel bar straightening and shearing mechanism (403) corresponds to the material discharge end and the transverse reinforcement installation platform (53).

9. The prefabricated box beam reinforcement component manufacturing equipment based on mesh assembly according to claim 8 is characterized by: The longitudinal reinforcement positioning mechanism (52) comprises two support rods (521) arranged on the front side of the support frame (51), first lifting electric cylinders (522) respectively arranged on the two support rods (521), a positioning crossbeam (523) arranged on the top output ends of the two first lifting electric cylinders (522), and a plurality of positioning rods (524) equidistantly arranged on the positioning crossbeam (523); The transverse reinforcement mounting platform (53) comprises two second lifting electric cylinders (531) arranged on the bottom crossbeam of the support frame (51) and a mounting platform (532) arranged on the top output ends of the two second lifting electric cylinders (531), and an automatic clamping claw for fixing the transverse reinforcement (9) is arranged on the mounting platform (532); The mobile welding device (58) comprises a lifting frame (582) that can be lifted and lowered by means of an electric screw rod (581) and a support frame (51), a longitudinally movable beam (583) disposed in the support frame (51) and longitudinally movable by means of a linear guide rail, a slide rail (588) disposed on the longitudinally movable beam (583), a plurality of self-driven welding carriages (584) slidably disposed on the slide rail (588), a welding hook (587) and a welding machine lifting electric cylinder (585) disposed at the bottom of the self-driven welding carriage (584), and a welding head (586) disposed on the output end of the lifting electric cylinder (585); The transverse rib bending mechanism (54) comprises two third lifting electric cylinders (546) arranged on the bottom crossbeam of the support frame (51), a bending table (541) arranged on the top output ends of the two third lifting electric cylinders (546), and bending components symmetrically arranged at both ends of the bending table (541); The bending assembly comprises a transverse movable slide (542) arranged on the bending table (541), a longitudinal movable slide (543) slidably arranged on the transverse movable slide (542), and a bending component (544) slidably arranged on the longitudinal movable slide (543); The bending component (544) comprises an L-shaped machine base (545) slidably arranged on the longitudinal moving slide (543), a driving motor (5451) and a support frame (5456) arranged on the L-shaped machine base (545), a driving gear (5452) arranged on the output end of the driving motor (5451), a through bearing (5453) arranged on the side wall of the L-shaped machine base (545), a hollow sleeve (5454) penetrating the through bearing (5453), a driven gear (5455) arranged outside the rear end of the hollow sleeve (5454) and meshing with the driving gear (5452), and a driven gear (5455) arranged on the side of the support frame (5456). An extension rod (5457) extending from the surface and penetrating the hollow sleeve (5454), an extension plate (5458) arranged at the other end of the extension rod (5457), four abutment blocks (5459) arranged at the other side of the extension plate (5458) and forming a cross groove therebetween, an expansion plate (5460) arranged outside the hollow sleeve (5454) on the side close to the abutment blocks (5459), a connecting rod (5461) arranged at the side edge of the expansion plate (5460) close to the abutment blocks (5459), and a bending piece (5462) arranged at the other end of the connecting rod (5461), wherein the bending piece (5462) is provided with an L-shaped bending groove corresponding to the cross groove; The traction movable platform (55) comprises a transport frame (551), a rollable roller (552) is arranged on the transport frame (551), and stepped racks (554) and guide rails (553) are symmetrically arranged on two side walls of the transport frame (551); The traction mechanism (56) comprises a traction frame (561) movably mounted on two guide rails (553) via four sliders at the bottom, a traction drive motor (562) is arranged on the side of the traction frame (561), the output shafts at both ends of the traction drive motor (562) are connected to a transmission rod assembly, the other end of the transmission rod assembly is drivingly connected to a traction gear (563) meshing with the rack (554), the other end of the traction frame (561) is provided with an extension frame (564) for passing through the support frame (51), and the other end of the extension frame (564) is provided with a plurality of tightening assemblies (57) for clamping (10) the end of the longitudinal reinforcement; The tightening assembly (57) comprises a base (571) arranged on an extension frame (564), wherein clamping arms (572) hingedly connected by shafts are symmetrically arranged in the base (571), wherein one end of the shaft extends to the outside of the base (571) and is provided with a meshing clamping gear (574), and a push electric cylinder (575) is hingedly arranged on the base (571), the other end of which is hingedly connected to one of the clamping arms (572), and clamping claws (573) are arranged on opposite sides of the front ends of the two clamping arms (572), and V-shaped grooves are arranged on opposite sides of the two clamping claws (573), and V-shaped anti-slip grooves are arranged on the V-shaped grooves.

10. The prefabricated box beam reinforcement component manufacturing equipment based on mesh assembly according to claim 8 or 9 is characterized in that: It also includes a mesh assembly platform (15) for assembling the lower steel mesh (8) and the upper steel mesh (7), the mesh assembly platform (15) including a concave platform (151), a lower support platform (152) being arranged on the inner bottom wall of the concave platform (151), a plurality of lifting and adjusting hydraulic cylinders (153) and lifting beams (154) being arranged on two side wall surfaces of the concave platform (151), a plurality of corresponding groups of fitting grooves (155) being arranged on opposite sides of the two lifting beams (154), the fitting grooves (155) being laterally passed through the lifting beams (154), and an upper support beam (156) being arranged in each group of fitting grooves (155); The assembly method of the lower steel mesh (8) and the upper steel mesh (7) is as follows: the upper support beam (156) is removed from the fitting groove (155), and the formed lower steel mesh (8) is hoisted onto the lower support platform (152), and then the height of the two lifting beams (154) is adjusted by the lifting and adjusting hydraulic cylinder (153), and the upper support beam (156) is hoisted onto it and fits with the fitting groove (155), and then the formed upper steel mesh (7) is hoisted onto the upper support platform (156), and the relative positions of the upper and lower steel meshes are adjusted. After confirmation, the hook can be loosened, the two are welded, and then the hook reinforcement between the two is installed, and the upper support beam (156) is pulled out, and finally the formed steel bar block is hoisted out.

Images