Prefabricated box girder reinforcement part construction method based on mesh assembly and equipment thereof

Abstract

The application provides a prefabricated box girder steel part construction method based on mesh assembly and equipment thereof, which splits the steel block of the assembled steel part into a lower steel mesh and an upper steel mesh, and sequentially completes the manufacturing of the lower steel mesh and the upper steel mesh; the upper steel mesh is hoisted above the lower steel mesh, and the two are welded, and the manufacturing of the steel block is completed through the above steps. By splitting the steel part into multiple steel blocks, and assembling the steel blocks by the upper and lower steel meshes, the industrial standardization equipment is facilitated for production, and high-precision steel meshes and steel blocks are obtained, and the overall quality of the steel part is improved.

Description

Technical Field

[0001] The present 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 advantages such as light structure, small building height, less reinforcement and fast construction speed.

[0003] At present, the most common construction method at box girder reinforcement construction sites is to manually carry the steel bars 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 large amount of manpower is required, which is a labor-intensive operation, which invisibly increases the safety risks at 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. 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 guarantee. The current cast-in-place box girder construction process and method are not mechanized and automated to a high degree, 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 generally adopts 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:

[0006] S1. Splitting the steel bar block of the assembled steel bar component into a lower steel mesh and an upper steel mesh, and completing the production of the lower steel mesh and the upper steel mesh in sequence;

[0007] S2. Make the lower layer of steel mesh and arrange the multiple longitudinal bars neatly according to the design size;

[0008] S3. Insert the transverse reinforcement of the lower steel mesh into the bottom of the longitudinal reinforcements, weld the transverse reinforcements to the longitudinal reinforcements, and then bend the transverse reinforcements into a U-shape with the side walls extending inward;

[0009] S4, pull the longitudinal reinforcement to continue moving for a certain distance, and repeat step S3 until all the transverse reinforcements are installed;

[0010] S5. Make the upper steel mesh and arrange the multiple longitudinal bars neatly according to the design size;

[0011] S6. Insert the transverse reinforcement of the upper steel mesh into the top of the longitudinal reinforcements, and weld the transverse reinforcements to the longitudinal reinforcements;

[0012] S7, pulling the longitudinal reinforcement to continue moving for a certain distance, and repeating step S6 until all the transverse reinforcements are installed;

[0013] S8. Hoist the upper steel mesh to the top of the lower steel mesh and weld them together. Finally, install hook bars between the upper and lower steel meshes.

[0014] The production of the steel bar block is completed through the above steps.

[0015] 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, through secondary bending, it is bent into a U-shape with two side walls extending inward.

[0016] In a preferred embodiment, the longitudinal reinforcement is made of bundled straight bars or disc steel bars;

[0017] The production method of bundled straight bars is as follows: first, the bundled straight bars are broken up and welded one by one to length, and then the designed length is installed and cut to length to form longitudinal bars;

[0018] The method of making circular steel bars is to straighten the circular steel bars, install them and cut them to the designed length to form longitudinal bars.

[0019] 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.

[0020] In a preferred embodiment, the assembly of the lower steel mesh and the upper steel mesh is completed on a transverse reinforcement welding and bending mechanism, which is provided with a longitudinal reinforcement positioning mechanism and a traction mechanism. The ends of the neatly arranged longitudinal reinforcements pass through the longitudinal reinforcement positioning mechanism and are connected to the traction mechanism, and the longitudinal reinforcements are pulled as a whole through the transverse reinforcement welding and bending mechanism by the traction mechanism.

[0021] 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 are completed by the mobile welding device and the transverse reinforcement bending mechanism.

[0022] 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;

[0023] The recognition device uses a dual-camera visual positioning recognition method with a specific spacing. The collected dual-camera images are binarized separately, and the intersection position within the current field of view working range is marked. The intersection position coordinates are calculated using the visual difference of the dual-camera images combined with trigonometric functions. The intersection position coordinates are compared with the design coordinates. If 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 and the next welding point is processed, and an alarm is issued.

[0024] The mobile welding device is driven by a Cartesian coordinate mechanism.

[0025] The preferred solution further includes the following steps: S9, separately manufacturing the bottom plate body, two groups of web plate bodies, and the top plate body, and reserving longitudinal reinforcement positions in the overlapping areas during assembly;

[0026] S10, hoisting the bottom plate body, two sets of web plate bodies and the top plate body into the assembly frame in sequence, and assembling them into shape by welding;

[0027] S11. Then, insert the corresponding longitudinal reinforcement into the reserved longitudinal reinforcement positions in the overlapped area and tie or weld them;

[0028] S12. Tie or weld chamfered stirrups between the two sets of web plates and the top plate;

[0029] 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;

[0030] The above steps are used to produce steel bar parts.

[0031] Prefabricated box girder reinforcement component manufacturing equipment based on mesh assembly, including

[0032] The longitudinal reinforcement preparation and initial positioning conveying mechanism completes the preparation and conveying of the longitudinal reinforcements one by one, and arranges the longitudinal reinforcements neatly at the end to complete the initial positioning of the longitudinal reinforcements;

[0033] The transverse reinforcement welding and bending mechanism is connected to the longitudinal reinforcement preparation and initial positioning conveying mechanism, and is used to pull the longitudinal reinforcement through itself and weld and bend the inserted transverse reinforcement;

[0034] The transverse reinforcement processing equipment is connected to the transverse reinforcement welding and bending mechanism, is used to process the transverse reinforcement of the required size, and is inserted into the transverse reinforcement welding and bending mechanism;

[0035] The mesh connecting platform is used to receive the completed upper steel mesh or lower steel mesh.

[0036] 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 feeding mechanisms are staggeredly arranged at the end of the material preparation conveying mechanism;

[0037] The material preparation conveying mechanism comprises a chain wheel, a conveying chain sleeved on the chain wheel, and a plurality of longitudinal rib positioning frames arranged at equal intervals outside the conveying chain, the top end of the longitudinal rib positioning frame is V-shaped, and the chain wheel is driven by a motor;

[0038] The longitudinal rib feeding mechanism comprises a stand and lifting feeding assemblies arranged on both sides of the stand, the two lifting feeding assemblies are respectively arranged on both sides of the end of the material preparation conveying mechanism, the lifting feeding assembly comprises a lifting slide arranged on the side of the stand, a lifting slide base slidingly arranged on the lifting slide, a lifting cylinder arranged on the side of the stand and connected with the output end of the lifting slide base, a lifting arm connected with the lifting slide base, and an electric conveying wheel arranged on the lifting arm;

[0039] The transverse rib welding and bending mechanism comprises a support frame, a longitudinal rib positioning mechanism arranged on the front side of the support frame, a transverse rib mounting platform and a transverse rib bending mechanism arranged in the support frame in sequence from front to back, a mobile welding device arranged in the support frame and located above the transverse rib mounting platform, a traction movable platform arranged on 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;

[0040] The transverse rib processing equipment comprises a transverse rib coiled steel storage rack, a transverse rib wire arranging frame, and a transverse rib coiling straightening and shearing mechanism arranged in sequence, and the discharge end of the transverse rib coiling straightening and shearing mechanism corresponds to the transverse rib mounting platform.

[0041] In the preferred embodiment, the longitudinal rib positioning mechanism comprises two support rods arranged on the front side of the support frame, a first lifting cylinder arranged on each of the two support rods, a positioning cross beam arranged on the top output end of the two first lifting cylinders, and a plurality of positioning rods arranged at equal intervals on the positioning cross beam;

[0042] The transverse rib mounting platform comprises two second lifting cylinders arranged on the bottom cross beam of the support frame and a mounting table arranged on the top output end of the two second lifting cylinders, and the mounting table is provided with automatic clamping jaws for fixing the transverse rib;

[0043] The mobile welding device comprises a lifting frame arranged on the support frame through an electric screw rod, a longitudinal moving cross beam arranged in the support frame and capable of moving longitudinally through a linear guide rail, a slide rail arranged on the longitudinal moving cross beam, a plurality of self-driven welding trolleys slidingly arranged on the slide rail, a welding hook and a welding machine lifting cylinder arranged on the bottom of the self-driven welding trolley, and a welding head arranged on the output end of the welding machine lifting cylinder;

[0044] The transverse rib bending mechanism comprises two third lifting cylinders arranged on the bottom cross beam of the support frame, a bending table arranged on the top output end of the two third lifting cylinders, and bending assemblies symmetrically arranged at both ends of the bending table;

[0045] The bending assembly includes a transverse movable slide arranged on the bending table, a longitudinal movable slide slidably arranged on the transverse movable slide, and a bending component slidably arranged on the longitudinal movable slide;

[0046] 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 on the outside of 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 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;

[0047] The traction movable platform includes a transport frame, a rollable roller is provided on the transport frame, and stepped racks and guide rails are symmetrically provided on the two side walls of the transport frame;

[0048] The traction mechanism includes a traction frame movably mounted on two guide rails through four sliders at the bottom, a traction drive motor is provided on the side of the traction frame, and the output shafts at both ends of the traction drive motor are connected to a transmission rod assembly, and the other end of the transmission rod assembly is connected to a traction gear meshing with the rack, and the other end of the traction frame is provided with an extension frame for passing through the support frame, and the other end of the extension frame is provided with multiple tightening assemblies for clamping the end of the longitudinal reinforcement;

[0049] The tightening assembly includes a base arranged on an extension frame, in which clamping arms hinged by shafts are symmetrically arranged, one end of the shaft extending to the outside of the base is provided with a meshing clamping gear, a pushing electric cylinder is hingedly provided on the base, the other end of which is hinged to one of the clamping arms, clamping claws are provided on opposite sides of the front ends of the two clamping arms, V-shaped grooves are provided on opposite sides of the two clamping claws, and V-shaped anti-slip grooves are provided on the V-shaped grooves.

[0050] In the preferred embodiment, a mesh assembly platform for assembling the lower steel mesh and the upper steel mesh is further included, the mesh assembly platform including a concave platform, a lower support platform is provided on the inner bottom wall of the concave platform, a plurality of lifting adjustment hydraulic cylinders and lifting beams are provided on both side walls of the concave platform, and corresponding multiple groups of fitting grooves are provided on opposite sides of the two lifting beams, the fitting grooves pass through the lifting beams transversely, and an upper support beam is mounted in each group of fitting grooves;

[0051] 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 beam, adjust the relative positions of the upper and lower steel meshes, and loosen the hook after confirmation, weld the two together, and then install the hook reinforcement between the two, and pull out the upper support beam, and finally hoist the formed steel block.

[0052] 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 multiple steel bar blocks, and assembling the steel bar blocks by two upper and lower steel bar meshes, it is convenient to use industrial standardized equipment for production, and at the same time obtain high-precision steel bar meshes and steel bar blocks, thereby improving the overall quality of the steel bar components. The mechanized production method 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, leaving only a small number of people on site to carry out modular assembly of the 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, thus safeguarding the construction period of the construction company. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The present invention will be further described below with reference to the accompanying drawings and examples:

[0054] Figure 1 This is a schematic diagram of the structure of the steel mesh split from the steel block of the present invention;

[0055] Figure 2 This is a schematic diagram of the unfolded planar structure of the steel mesh of the present invention;

[0056] Figure 3 Schematic diagram of the cross-sectional structure of the steel bar component of the present invention;

[0057] Figure 4 This is a schematic diagram of the block structure of the steel bar component of the present invention;

[0058] Figure 5 This is a schematic diagram of the steel bar block assembly process of the present invention;

[0059] Figure 6 This is a schematic diagram of the assembly process of steel bar components of the present invention;

[0060] Figure 7 It is a schematic diagram of the structure of the device of the present invention;

[0061] Figure 8 This is a schematic structural diagram of the equipment for processing bundled longitudinal reinforcement bars of the present invention;

[0062] Figure 9 is the structural schematic diagram of the longitudinal rib disc steel bar processing equipment of the present application;

[0063] Figure 10 is the connection structure diagram of the transverse rib processing equipment and the transverse rib welding and bending mechanism of the present application;

[0064] Figure 11 is the connection structure diagram of the standby material conveying mechanism and the longitudinal rib feeding mechanism of the present application;

[0065] Figure 12 is the structural diagram of the standby material conveying mechanism of the present application;

[0066] Figure 13 is the structural diagram of the longitudinal rib feeding mechanism of the present application;

[0067] Figure 14 is the transverse rib distribution schematic diagram of the present application;

[0068] Figure 15 is the rear axle side structural diagram of the transverse rib welding and bending mechanism of the present application;

[0069] Figure 16 is the front axle side structural diagram of the transverse rib welding and bending mechanism of the present application;

[0070] Figure 17 is the structural diagram of the longitudinal rib positioning mechanism of the present application;

[0071] Figure 18 is the structural diagram of the moving welding device of the present application;

[0072] Figure 19 is the structural diagram of the transverse rib bending mechanism of the present application;

[0073] Figure 20 is the structural side view of the bending part of the present application;

[0074] Figure 21 is the structural diagram of the clamping assembly of the present application;

[0075] Figure 22 is the structural side view of the clamping assembly of the present application;

[0076] Figure 23 is the structural diagram of the mesh group assembling table of the present application;

[0077] In the figure: longitudinal reinforcement bundle straight bar processing equipment 1; longitudinal reinforcement bar material storage rack 101; longitudinal reinforcement bar ladder loading mechanism 102; longitudinal reinforcement bar conveying mechanism 103; butt welding machine 104; conveying mechanism after butt welding 105; longitudinal reinforcement bar shearing mechanism 106; sizing and turning mechanism 107; longitudinal reinforcement disc processing equipment 2; longitudinal reinforcement disc round bar storage rack 201; longitudinal reinforcement wire frame 202; longitudinal reinforcement disc straightening and shearing mechanism 203; turning mechanism 204 after straightening and shearing; conveying mechanism 205 after straightening and shearing; longitudinal reinforcement preparation initial positioning conveying mechanism 3; preparation conveying mechanism 31; sprocket 310; conveying chain 311; longitudinal reinforcement positioning rack 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 frame 402; transverse reinforcement round steel bar 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 mounting platform 53; second lifting electric cylinder 531; mounting platform 532; transverse reinforcement bending mechanism 54; bending platform 541; transverse moving slide 542; longitudinal reinforcement Movable slide 543; bending component 544; L-shaped machine base 545; driving motor 5451; driving gear 5452; through bearing 5453; hollow sleeve 5454; driven gear 5455; support frame 5456; extension rod 5457; extension plate 5458; interference block 5459; expansion plate 5460; connecting rod 5461; bending component 5462; traction movable platform 55; transport frame 551; roller 552; guide rail 553; rack 554; traction mechanism 56; traction frame 561; traction driving motor 562; traction gear 563; extension frame 564; tightening assembly 57; 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; fitting groove 155; upper support beam 156. DETAILED DESCRIPTION

[0078] Example 1

[0079] like Figure 1-6 As shown, a method for constructing prefabricated box beam reinforcement components based on mesh assembly includes:

[0080] S1, splitting the steel bar block of the assembled steel bar component into a lower steel mesh 8 and an upper steel mesh 7, and completing the production of the lower steel mesh 8 and the upper steel mesh 7 in sequence;

[0081] S2, the lower layer steel mesh 8 is made, and multiple longitudinal bars 10 are arranged neatly according to the design size;

[0082] 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: first 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;

[0083] S4, pull the longitudinal reinforcement 10 to continue moving for a distance, and repeat step S3 until all the transverse reinforcements 9 are installed;

[0084] S5, the upper steel mesh 7 is made, and the multiple longitudinal bars 10 are arranged neatly according to the design size;

[0085] S6. Insert the transverse reinforcement 9 of the upper steel mesh 7 transversely into the top of the plurality of longitudinal reinforcements 10, and weld the transverse reinforcement 9 to the longitudinal reinforcement 10;

[0086] S7, pull the longitudinal reinforcement 10 to continue moving for a distance, and repeat step S6 until all the transverse reinforcements 9 are installed;

[0087] S8, hoist the upper steel mesh 7 above the lower steel mesh 8, weld the two together, and finally install hook bars between the upper steel mesh 7 and the lower steel mesh 8;

[0088] The production of the steel bar block is completed through the above steps.

[0089] S9. Produce the bottom plate body 300, two groups of web plate bodies 200, and the top plate body 100 respectively, and reserve 10 longitudinal reinforcements in the overlapping area during assembly;

[0090] 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;

[0091] S11, then insert the corresponding longitudinal reinforcement 10 into the reserved longitudinal reinforcement 10 positions in the overlapped area and tie or weld them;

[0092] S12, tying or welding chamfered stirrups 11 between the two sets of web plates 200 and the top plates 100;

[0093] S13, finally, install the positioning steel mesh 12 according to the drawing, and insert the corrugated tube 13 and the prestressed tendons 14 into the positioning steel mesh 12 in sequence;

[0094] The above steps are used to produce steel bar parts.

[0095] Wherein, the longitudinal reinforcement 10 is made of bundled straight reinforcement or disc reinforcement;

[0096] The method of making bundled straight bars is as follows: first, the bundled straight bars are broken up and welded one by one to length, and then the designed length is installed and cut to length to form longitudinal bars 10;

[0097] The method of making the circular steel bar is as follows: the circular steel bar is straightened, and the designed length is installed and cut to a fixed length to form the longitudinal reinforcement 10.

[0098] In addition, the transverse reinforcement 9 is made of a round steel bar, specifically: the round steel bar is straightened and installed to a designed length and cut to a fixed length to form the transverse reinforcement 9

[0099] 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. 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. 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.

[0100] 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.

[0101] It should be noted that, in this 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 with the side walls extending inward in the U-shape is convenient for welding with the top transverse reinforcement 9. Secondly, in this embodiment, carbon dioxide gas shielded welding is used to weld the joints between the lower steel mesh 8 and the upper steel mesh 7. The length of the single-sided weld should meet 10d, and the length of the double-sided weld should meet 5d, where d is the diameter of the transverse reinforcement.

[0102] In a 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;

[0103] The recognition device uses a dual-camera visual positioning recognition method with a specific spacing. The collected dual-camera images are binarized separately, and the intersection position within the current field of view working range is marked. The intersection position coordinates are calculated using the visual difference of the dual-camera images combined with trigonometric functions. The intersection position coordinates are compared with the design coordinates. If 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 and the next welding point is processed, and an alarm is issued.

[0104] The mobile welding device 58 is driven by a Cartesian coordinate mechanism.

[0105] In the preferred embodiment, after the steel bar blocks are fabricated, a camera is positioned at a predetermined location to capture images from the axial direction of the longitudinal bars 10, detecting their positions. These positions are then compared with the designed positions, and any non-compliant longitudinal bars 10 are adjusted and corrected. This detection ensures that the longitudinal bars of the box girder reinforcement components in each bin are aligned, facilitating one-to-one connection.

[0106] Before detecting the position of the longitudinal reinforcement 10, a steel bar block corresponding to the first bin is first manufactured according to the designed dimensions. A fixed camera captures an image of the steel bar block in the first bin, and the position of the longitudinal reinforcement 10 is identified and converted into a coordinate array through artificial intelligence. The coordinate array of the longitudinal reinforcement 10 position is then stored.

[0107] 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 perform contour tracking on the selected area after selection, that is, perform vector ellipse fitting on the selected contour, and perform circular or elliptical filtering on the vector fitting pattern based on the image of the steel bar block in the first bin, retaining the vector pattern that meets the end face of the longitudinal reinforcement 10, and using 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 well 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.

[0108] When photographing the steel bar components in the subsequent bins, 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; to avoid errors caused by perspective distortion of the image.

[0109] Capture an image of the steel bar component in the subsequent bin, identify the position of the longitudinal bar 10 through artificial intelligence, convert it into a coordinate array, and compare it with the coordinate array of the position of the longitudinal bar 10 in the steel bar component in the first bin;

[0110] 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.

[0111] In the preferred solution, after the box girder reinforcement components are assembled, the end of the box girder reinforcement components is imaged again to identify the position of the longitudinal reinforcement 10, compare it with the position of the longitudinal reinforcement 10 of the box girder reinforcement components in the first bin, and adjust and correct the position of the longitudinal reinforcement 10 that does not meet the requirements. Since adjustments have been made during the production of the reinforcement blocks, a simple algorithm can be used in this step, that is, the end face coordinates of 2 to 3 longitudinal reinforcements 10 in a reinforcement block are used as the basis for comparison, thereby greatly simplifying the algorithm. If there is a problem where the error exceeds the preset value, it is only necessary to adjust the position between the reinforcement blocks, thereby saving a lot of work on adjusting and correcting the longitudinal reinforcement ends. After subsequent hoisting, the adjustment work in the casting bin is also very little, and the above steps are used to achieve precise control of the position of the longitudinal reinforcement of the box girder reinforcement components. After measurement, through image detection based on artificial intelligence and correction operations on the longitudinal reinforcement 10, the workload of workers in adjusting the reinforcement in the casting bin is greatly reduced, the labor intensity is reduced, and the installation efficiency of the reinforcement components is improved.

[0112] Example 2

[0113] Further illustrate with reference to Example 1, Figure 7-23 The structure shown is based on the prefabricated box beam reinforcement parts assembly equipment assembled from mesh, including

[0114] The longitudinal reinforcement material preparation and initial positioning conveying mechanism 3 completes the 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;

[0115] The transverse reinforcement welding and bending mechanism 5 is connected to the longitudinal reinforcement preparation and initial positioning conveying mechanism 3, and is used to pull the longitudinal reinforcement 10 through itself and weld and bend the inserted transverse reinforcement 9;

[0116] The transverse reinforcement processing equipment 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;

[0117] The mesh connection platform 6 is used to receive the finished upper steel mesh 7 or lower steel mesh 8.

[0118] During use, the longitudinal reinforcements 10 are transported one by one to the feed end of the transverse reinforcement welding and bending mechanism 5 through the longitudinal reinforcement preparation initial positioning and 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 reinforcements 9. Finally, the completed upper steel mesh 7 or lower steel mesh 8 is received by the mesh connection platform 6.

[0119] In the preferred embodiment, the longitudinal reinforcement preparation and initial positioning conveying mechanism 3 includes a plurality of equally spaced preparation and conveying mechanisms 31. The number and arrangement spacing of the preparation and conveying mechanisms 31 are determined according to the required length of the longitudinal reinforcement 10. A plurality of longitudinal reinforcement feeding mechanisms 32 are staggeredly arranged at the end of the preparation and conveying mechanism 31 to feed the longitudinal reinforcement 10 into the transverse reinforcement welding and bending mechanism 5.

[0120] 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.

[0121] 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, the corresponding spacing is automatically moved to prepare for the next longitudinal reinforcement connection, so that the longitudinal reinforcements 10 are neatly arranged at the end.

[0122] The longitudinal reinforcement feeding mechanism 32 includes a column 321 and a lifting and feeding assembly arranged on both sides of the column 321. The two lifting and feeding assemblies are respectively located on both sides of the end of the material preparation and conveying mechanism 31. The lifting and 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, thereby adjusting the height of the lifting arm 325 and the electric conveying wheel 326.

[0123] During 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 transported forward through the operation of the electric conveying wheel 326, thereby sending the longitudinal reinforcement 10 into the transverse reinforcement welding and bending mechanism 5.

[0124] In the preferred embodiment, the transverse reinforcement welding and bending mechanism 5 includes a support frame 51, a longitudinal reinforcement positioning mechanism 52 provided on the front side of the support frame 51, a transverse reinforcement mounting platform 53 and a transverse reinforcement bending mechanism 54 provided in the support frame 51 in sequence, a mobile welding device 58 provided in the support frame 51 and located above the transverse reinforcement mounting platform 53, a traction movable platform 55 provided on the back side of the support frame 51, and a traction mechanism 56 movably provided on the traction movable platform 55 and capable of passing through the support frame 51;

[0125] During 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 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 is continued 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.

[0126] The longitudinal reinforcement positioning mechanism 52 includes two support rods 521 welded to 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 equidistantly fixed on the positioning beam 523. The positioning rods 524 and the positioning beam 523 can achieve the effect of adjusting the height through the first lifting electric cylinders 522. When the longitudinal reinforcement 10 passes through the plurality of equidistantly arranged positioning rods 524 under the conveyance of the longitudinal reinforcement feeding mechanism 32, the positioning effect can be achieved through the positioning rods 524.

[0127] In the preferred embodiment, the transverse reinforcement mounting platform 53 includes two second lifting electric cylinders 531 provided on the bottom crossbeam of the support frame 51 and a mounting platform 532 provided 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, allowing the transverse reinforcement 9 to continue to move forward. The second lifting electric cylinder 531 facilitates the adjustment of the height of the mounting platform 532.

[0128] In the preferred embodiment, the mobile welding device 58 includes a lifting frame 582 that can be raised and lowered by an electric screw 581 and a support frame 51, a longitudinally movable beam 583 disposed in the support frame 51 and movable longitudinally by 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 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 welding machine lifting cylinder 585. Cartesian coordinate drive is achieved 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 design requirements.

[0129] In the preferred embodiment, the transverse rib bending mechanism 54 includes two third lifting cylinders 546 provided on the bottom crossbeam of the support frame 51, a bending platform 541 provided on the top output ends of the two third lifting cylinders 546, and bending components symmetrically provided at both ends of the bending platform 541;

[0130] The bending assembly includes a transverse movable slide 542 provided on the bending table 541 , a longitudinal movable slide 543 slidably provided on the transverse movable slide 542 , and a bending component 544 slidably provided on the longitudinal movable slide 543 ;

[0131] 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 on the outside of 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 through the hollow sleeve 5454, an extension plate 5458 disposed at the other end of the extension rod 5457, four interference blocks 5459 disposed on the other side of the extension plate 5458 and forming a cross groove therebetween, an expansion plate 5460 disposed on the outside of the hollow sleeve 5454 near the interference blocks 5459, a connecting rod 5461 disposed at the edge of the expansion plate 5460 near the interference blocks 5459, and a bent piece 5462 disposed at the other end of the connecting rod 5461, wherein the bent piece 5462 is provided with an L-shaped bending groove corresponding to the cross groove;

[0132] During use, when the transverse rib 10 reaches the bending position of the transverse rib bending mechanism 54, the bending component 544 is raised to the corresponding height by the third lifting 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 moved longitudinally by the longitudinal moving slide 543 until the transverse rib 10 is stuck in the cross grooves of the four interference 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 within the interference block 5459. The bending is completed, and then the bending component 544 is moved by the longitudinal moving slide 543 to make it exit 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 second bending is performed by rotating the bending component 5462 again, 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.

[0133] In the preferred embodiment, the traction movable platform 55 includes a transport frame 551, on which a rollable roller 552 is provided, and on two side walls of the transport frame 551, a stepped rack 554 and a guide rail 553 are symmetrically provided;

[0134] 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 sliders and the guide rails 553 are T-shaped. A traction drive motor 562 is provided on the side of the traction frame 561. The output shafts at both ends of the traction drive motor 562 are connected with a transmission rod assembly. The transmission rod assembly consists of a transmission rod and a support bearing. The other end of the transmission rod assembly is transmission-connected to a traction gear 563 that meshes 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 end of the longitudinal reinforcement 10. The traction drive motor 562 drives the traction gear 563 to rotate on the rack 554 to achieve the traction effect.

[0135] In the preferred embodiment, the tightening assembly 57 includes a base 571 fixed on the extension frame 564, and the base 571 is symmetrically provided with clamping arms 572 hinged by an axis, 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 provided on the base 571, and the other end is hingedly connected to one of the clamping arms 572, and the two clamping arms 572 are provided with clamping claws 573 on the opposite sides of the front end, and the two clamping claws 573 are provided with V-shaped grooves on the opposite sides, and the V-shaped grooves are provided with V-shaped anti-slip grooves. The two clamping claws 573 can be pushed to clamp and release by extending and retracting the pushing electric cylinder 575.

[0136] 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.

[0137] The preferred embodiment further includes a longitudinal bar bundle straight bar processing device 1 for processing the bundled straight bars into longitudinal bars 10 of a desired size, wherein the longitudinal bar bundle straight bar processing device 1 includes a longitudinal bar bar storage rack 101, a longitudinal bar bar ladder loading mechanism 102, a longitudinal bar bar conveying mechanism 103, a butt welding machine 104, a post-butt welding conveying mechanism 105, a longitudinal bar bar shearing mechanism 106, and a sizing and turning mechanism 107, which are arranged in sequence;

[0138] When in use, the bundled straight bars are broken up and placed on the longitudinal bar storage rack 101, and are sequentially conveyed to the butt welding machine 104 through the longitudinal bar step loading mechanism 102 and the longitudinal bar conveying mechanism 103 for butt welding length, and then conveyed by the post-butt welding 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 cuts and blanks the bars, and finally the straightening and shearing conveying mechanism 205 conveys the sheared longitudinal bar bars to the longitudinal bar preparation initial positioning conveying mechanism 3;

[0139] In the preferred embodiment, a longitudinal steel bar disc processing device 2 is further included for processing the steel bar disc into longitudinal bars 10 of a desired size, wherein the longitudinal steel bar disc processing device 2 includes a longitudinal steel bar disc storage rack 201, a longitudinal steel bar wire-straightening 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-conveyance mechanism 205, wherein the straightening and shearing post-conveyance mechanism 205 is connected to the sizing and turning mechanism 107;

[0140] When in use, the coiled steel bar is hoisted onto the longitudinal steel bar coiled steel bar storage rack 201, and one end of the coiled steel bar is passed through the longitudinal steel bar wire-straightening frame 202 and inserted into the longitudinal steel bar coiling straightening and shearing mechanism 203. After being straightened and cut to length by the longitudinal steel bar coiling straightening and shearing mechanism 203, the steel bar is transported to the straightening and shearing post-turning mechanism 204 and then transported to the straightening and shearing post-conveying mechanism 205 by the straightening and shearing post-conveying mechanism 205. The steel bar is then transported to the length-fixing and turning mechanism 107 by the straightening and shearing post-conveying mechanism 205.

[0141] The sizing and turning mechanism 107 is connected to the feeding end of the longitudinal reinforcement preparation initial positioning conveying mechanism 3.

[0142] 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 this field, and therefore will not be described in detail here.

[0143] 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 pass through the lifting beams 154 transversely, and an upper support beam 156 is provided in each group of fitting grooves 155.

[0144] 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 through 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 beam 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.

[0145] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. In other words, equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. The equipment for manufacturing prefabricated box beam reinforcement components based on mesh assembly is characterized by: include The longitudinal reinforcement material preparation and 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 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); 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 a required size, and is inserted into the transverse reinforcement welding and bending mechanism (5); A mesh connection platform (6) is used to receive the finished upper steel mesh (7) or lower steel mesh (8); The transverse reinforcement welding and bending mechanism (5) comprises a support frame (51), a longitudinal reinforcement positioning mechanism (52) arranged on 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 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); The transverse reinforcement processing equipment (4) includes a transverse reinforcement coil storage rack (401), a transverse reinforcement wire arrangement frame (402), and a transverse reinforcement coil straightening and shearing mechanism (403) arranged in sequence, wherein the transverse reinforcement coil straightening and shearing mechanism (403) corresponds to the discharging end of the transverse reinforcement installation platform (53); 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 beam (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 beam (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 provided on the mounting platform (532); The mobile welding device (58) includes a lifting frame (582) that can be lifted and lowered by an electric screw (581) and a support frame (51), a longitudinal movable beam (583) disposed in the support frame (51) and longitudinally movable by 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 on the output end of the welding machine lifting 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) 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) arranged through 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 and passing through the hollow sleeve (5454), an extension plate (5458) disposed at the other end of the extension rod (5457), four interference blocks (5459) disposed on the other side of the extension plate (5458) and forming a cross groove therebetween, an expansion plate (5460) disposed on the outside of the hollow sleeve (5454) near the interference block (5459), a connecting rod (5461) disposed at the edge of the expansion plate (5460) near the side of the interference block (5459), and a bending piece (5462) disposed 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) includes a transport frame (551), a rollable roller (552) is provided on the transport frame (551), and stepped racks (554) and guide rails (553) are symmetrically provided on two side walls of the transport frame (551); The traction mechanism (56) includes a traction frame (561) movably mounted on two guide rails (553) via four sliders at the bottom. A traction drive motor (562) is provided 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 transmission-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). The other end of the extension frame (564) is provided with a plurality of tightening assemblies (57) for clamping the end of the longitudinal reinforcement (10). The tightening assembly (57) includes a base (571) arranged on an extension frame (564), and clamping arms (572) hinged 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 provided on the base (571), the other end of which is hinged to one of the clamping arms (572), and clamping claws (573) are provided on opposite sides of the front ends of the two clamping arms (572), and V-shaped grooves are provided on opposite sides of the two clamping claws (573), and V-shaped anti-slip grooves are provided on the V-shaped grooves; It also includes a mesh assembly platform (15) for assembling the lower layer steel mesh (8) and the upper layer steel mesh (7).

2. The mesh-based prefabricated box girder reinforcement component manufacturing equipment according to claim 1, characterized in that: The longitudinal reinforcement material preparation initial positioning conveying mechanism (3) comprises a plurality of equally spaced material preparation conveying mechanisms (31), and a plurality of longitudinal reinforcement feeding mechanisms (32) are staggeredly arranged at the ends of the material preparation conveying mechanisms (31); The material preparation conveying mechanism (31) includes a sprocket (310), a conveying chain (311) which is driven and sleeved on the sprocket (310), and a plurality of longitudinal reinforcement positioning frames (312) which are equidistantly arranged outside the conveying chain (311), wherein the top end of the longitudinal reinforcement positioning frames (312) is V-shaped, and the sprocket (310) is driven by a motor; 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), and 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).

3. The mesh-based prefabricated box beam reinforcement component manufacturing equipment according to claim 1 or 2 is characterized by: 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), and corresponding groups of fitting grooves (155) are provided on opposite sides of the two lifting beams (154), the fitting grooves (155) pass through the lifting beams (154) in the transverse direction, and 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: 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 beam (156), and the relative positions of the upper and lower steel meshes are adjusted. After confirming that they are correct, 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 block is hoisted out.

4. A method for constructing prefabricated box girder reinforcement components based on mesh assembly, characterized in that: Using the prefabricated box beam reinforcement component construction equipment based on mesh assembly according to any one of claims 1 to 3, the method comprises: 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, making the lower layer steel mesh (8), arranging the plurality of longitudinal bars (10) in an orderly manner according to the design size; S3, inserting the transverse reinforcement (9) of the lower layer steel mesh (8) into the bottom of the plurality of longitudinal reinforcements (10) transversely, 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; S4, pulling the longitudinal reinforcement (10) to continue to move 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) into the top of the plurality of longitudinal reinforcements (10) transversely, and welding the transverse reinforcement (9) to 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.

5. The method for constructing prefabricated box beam reinforcement components based on mesh assembly according to claim 4, characterized in that: 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 inward.

6. The method for constructing prefabricated box beam reinforcement components based on mesh assembly according to claim 4 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 welded one by one to length, and then the designed length is installed and cut to a fixed length to form longitudinal bars (10); The method of making the circular steel bar is as follows: straightening the circular steel bar, installing it and cutting it to the designed length to form the longitudinal reinforcement (10); The transverse reinforcement (9) is made of a circular steel bar, specifically by straightening the circular steel bar, installing the designed length and cutting it to a fixed length to form the transverse reinforcement (9).

7. The method for constructing prefabricated box beam reinforcement components based on mesh assembly according to claim 4 is characterized by: 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). 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). The longitudinal reinforcements (10) are pulled as a whole through the transverse reinforcement welding and bending mechanism (5) by the traction 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 reinforcement (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).

8. The method for constructing prefabricated box beam reinforcement components based on mesh assembly according to claim 7, characterized in that: 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. The collected dual-camera images are binarized separately, and the intersection position within the current field of view working range is marked. The intersection position coordinates are calculated using the visual difference of the dual-camera images combined with trigonometric functions. The intersection position coordinates are compared with the design coordinates. If 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 and the next welding point is processed, and an alarm is issued. The mobile welding device (58) is driven by a Cartesian coordinate mechanism.

9. The method for constructing prefabricated box beam reinforcement components based on mesh assembly according to claim 4, characterized in that: The following steps are also included: S9, respectively making 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 when assembling; 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) in the overlapped area and tie or weld them; S12, tying or welding chamfered stirrups (11) between the two sets of web plates (200) and the top plate (100); S13, finally installing the positioning steel mesh (12) according to the drawing, and inserting the corrugated tube (13) and the prestressed steel bar (14) in the positioning steel mesh (12) in sequence; The above steps are used to produce steel bar parts.

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