Highway prefabricated box girder reinforcement framework automatic production method and equipment

Abstract

The application relates to the technical field of steel reinforcement framework forming, and provides a highway prefabricated box girder steel reinforcement framework automatic production method and equipment, which comprises a raw material bridge framework module, a stirrup tooling module, a steel reinforcement tensioning module, a welding module and a finished product bridge framework module; the stirrup tooling module comprises a stirrup magazine, a stirrup feeding mechanism and a stirrup pushing mechanism; the stirrup magazine is used for carrying a plurality of stirrup frameworks; the stirrup pushing mechanism is used for taking out the stirrup frameworks one by one; the raw material bridge framework module comprises a longitudinal reinforcement guide pipe and is used for supporting and guiding the longitudinal reinforcement to move in the longitudinal direction, so that the longitudinal reinforcement passes through the stirrup framework; the steel reinforcement tensioning module is used for tensioning the longitudinal reinforcement; the welding module is used for welding the stirrup framework and the longitudinal reinforcement; and the finished product bridge framework module comprises a finished product feeding device and is used for pulling the longitudinal reinforcement to move. The application realizes efficient automatic production of the highway prefabricated box girder steel reinforcement framework, improves the production efficiency and guarantees the production quality.

Description

Technical Field

[0001] This invention belongs to the field of steel reinforcement cage forming technology, specifically relating to an automated production method and equipment for steel reinforcement cages of precast box girders for highways. Background Technology

[0002] The steel reinforcement cage structure of highway box girders is complex. In the traditional production process, after the initial component production, the overall assembly can only be achieved manually. The traditional production process is roughly as follows: 1. Install the lower layer longitudinal reinforcement of the bottom slab (outside the web stirrups): Manually place the lower layer longitudinal reinforcement of the bottom slab on the jig; 2. Install and tie the bottom slab stirrups: Manually place the bottom slab stirrups on the jig and manually tie them to the lower layer longitudinal reinforcement placed in the first step; 3. Install and tie the web stirrups: Manually place the web stirrups on the jig and lower them to the bottom slab. 4. Manually tie the web longitudinal bars and the top longitudinal bars of the bottom slab to the stirrups placed in the second step; 5. Install the bottom longitudinal bars of the bottom slab (inside the web stirrups): Manually tie the bottom longitudinal bars contained inside the web stirrups to the web stirrups; 6. Tie the web longitudinal bars: Manually place and tie the inner longitudinal bars of the web and tie them to the web stirrups; 7. Adjust the bars: Manually adjust the spacing and tightness of the above bars.

[0003] From the above general process, it can be seen that there are many types of parts used in the production of steel reinforcement cages, the installation steps are complicated, the production efficiency is low, and the quality is difficult to guarantee. Summary of the Invention

[0004] To address the problems in the prior art, this application proposes an automated production method and equipment for the steel reinforcement cage of precast box girders for highways, which can realize the automated production of steel reinforcement cages for precast box girders for highways, improve production efficiency and ensure production quality.

[0005] In a first aspect, the present invention proposes an automated production method for the steel reinforcement cage of precast box girders for highways, comprising the following steps:

[0006] Step 1: Prefabricate the stirrup skeleton and longitudinal reinforcement for the production of precast box girders for highways;

[0007] Step 2: Install multiple stirrup skeletons longitudinally onto the stirrup magazine;

[0008] Step 3: Insert multiple longitudinal ribs into the longitudinal rib guide tube located at the rear end of the stirrup magazine. Use the longitudinal rib guide tube to support and guide the longitudinal ribs to move longitudinally, so that the longitudinal ribs pass through the stirrup skeleton and extend to the front end of the stirrup magazine, and connect with the finished product feeding device.

[0009] Step 4: Use the stirrup feeding mechanism to push the stirrup skeleton in the stirrup magazine to the set position;

[0010] Step 5: Use the stirrup-removing mechanism to remove the stirrup skeleton located at the front end of the stirrup magazine;

[0011] Step 6: Use the steel bar tensioning module located at the front end of the stirrup magazine to pick up the stirrup skeleton on the stirrup pulling mechanism and transfer it to the welding position, tension the longitudinal bar so that the longitudinal bar is close to the stirrup skeleton at the welding position;

[0012] Step 7: Using the welding module located at the front end of the rebar tensioning module, weld the stirrup skeleton to the longitudinal reinforcement at the welding position to complete the welding of one stirrup skeleton to multiple longitudinal reinforcements;

[0013] Step 8: Using the finished product feeding device located at the front end of the welding module, pull the longitudinal bar and the stirrup skeleton welded on the longitudinal bar forward by one stirrup spacing; return to step 4 until all the stirrup skeletons on the stirrup magazine are welded, and the production of the finished steel reinforcement skeleton is completed.

[0014] Furthermore, the prefabrication step of the stirrup skeleton in step 1 includes: prefabricating multiple bottom plate stirrups and multiple side plate stirrups according to the size of the prefabricated box girder of the highway; welding a side plate stirrup to each end of each bottom plate stirrup to form an integrated U-shaped stirrup skeleton.

[0015] Furthermore, step 3 also includes: supporting the longitudinal reinforcement with a roller support beam assembly disposed between the longitudinal reinforcement guide tube and the stirrup magazine.

[0016] Furthermore, the rebar tensioning module includes a stirrup positioning mechanism and a rebar tensioning mechanism; step 6 includes: using the stirrup positioning mechanism to clamp the stirrup skeleton on the stirrup pulling mechanism and transferring the stirrup skeleton to the welding position; using the rebar tensioning mechanism to tension the plurality of longitudinal bars at the welding position, so that each longitudinal bar is close to the stirrup skeleton at the welding position.

[0017] Furthermore, the finished product feeding device includes a finished product transport line arranged longitudinally and a finished product traction mechanism arranged above the finished product transport line; step 8 includes: using the finished product traction mechanism to pull the longitudinal reinforcement forward; using the finished product transport line to transport the finished or semi-finished steel reinforcement cage to follow the longitudinal reinforcement forward.

[0018] Furthermore, the method also includes: step 9, releasing the traction of the longitudinal reinforcement by the finished product traction mechanism; lifting the finished product traction mechanism using the mold entry lifting platform set at the front end of the finished product feeding device; driving the finished steel skeleton carried on the finished product transport line to pass under the finished product traction mechanism and move forward to the next station for mold entry.

[0019] Secondly, this invention proposes an automated production equipment for precast box girder steel reinforcement cages for highways, comprising: a raw material cable tray module, a stirrup tooling module, a steel reinforcement tensioning module, a welding module, and a finished product cable tray module; the stirrup tooling module includes a stirrup magazine, a stirrup feeding mechanism, and a stirrup releasing mechanism; the stirrup magazine is used to carry multiple stirrup cages; the stirrup feeding mechanism is used to push the stirrup cages in the stirrup magazine to a set position, and the stirrup releasing mechanism is used to remove the stirrup cage located at the foremost end of the stirrup magazine one by one; the raw material cable tray module includes a longitudinal reinforcement guide tube, which is disposed at the rear end of the stirrup magazine for support and... The longitudinal reinforcement is guided to move longitudinally, allowing it to pass through the stirrup skeleton. The reinforcement tensioning module is located at the front end of the stirrup magazine and is used to pick up the stirrup skeleton from the stirrup-pulling mechanism and transfer it to the welding position, and tension the longitudinal reinforcement so that it is close to the stirrup skeleton at the welding position. The welding module is located at the front end of the reinforcement tensioning module and is used to weld the stirrup skeleton at the welding position to the longitudinal reinforcement. The finished cable tray module includes a finished product feeding device, which is located at the front end of the welding module and is used to pull the longitudinal reinforcement and the stirrup skeleton welded to the longitudinal reinforcement.

[0020] Furthermore, the rebar tensioning module includes a gantry beam, a gantry beam guide rail, and a stirrup positioning mechanism; the gantry beam guide rail is arranged longitudinally, and the gantry beam moves along the gantry beam guide rail; the stirrup positioning mechanism is disposed on the gantry beam; the stirrup positioning mechanism includes stirrup clamps and stirrup supports, the stirrup clamps are used to clamp the side of the stirrup skeleton; the stirrup supports are used to support the bottom of the stirrup skeleton.

[0021] Furthermore, the rebar tensioning module also includes a rebar tensioning mechanism; the rebar tensioning mechanism includes an outer rebar tensioning mechanism and an inner rebar tensioning mechanism; the outer rebar tensioning mechanism is used to tension the longitudinal bars welded to the outer side of the stirrup skeleton; the inner rebar tensioning mechanism is used to tension the longitudinal bars welded to the inner side of the stirrup skeleton.

[0022] Furthermore, the finished product cable tray module also includes an entry lifting platform; the entry lifting platform is located at the front end of the finished product feeding device; the finished product feeding device includes: a traction cable tray, a finished product transport line, and a finished product traction mechanism; the finished product transport line is used to carry the finished steel reinforcement skeleton; the traction cable tray is provided on both sides of the finished product transport line; the traction cable tray includes a traction longitudinal beam; the finished product traction mechanism is located above the finished product transport line, and the two ends of the finished product traction mechanism are relatively movable and cooperate with the traction longitudinal beams on both sides of the finished product transport line; the entry lifting platform includes: a lifting support frame, a lifting assembly, and a lifting longitudinal beam; the lifting assembly is installed on one side of the lifting support frame, and the lifting assembly is connected to the lifting longitudinal beam for driving the lifting longitudinal beam to rise and fall; when the lifting longitudinal beam is at the first height, it is longitudinally connected with the traction longitudinal beam for carrying the finished product traction mechanism moved out from the traction longitudinal beam.

[0023] The beneficial effects of this invention are as follows: By cooperating with the raw material cable tray module, stirrup tooling module, rebar tensioning module, welding module, and finished cable tray module, efficient and automated production of the steel reinforcement skeleton of precast box girders for highways is achieved, improving production efficiency and ensuring production quality; the bottom plate stirrups and side plate stirrups are pre-welded into an integrated structure, separating the stirrup skeleton installation process and reducing the operational difficulty of the stirrup skeleton installation process; the use of customized raw material cable tray modules and stirrup tooling modules enables the standardization of the production process, ensuring that the finished products meet industry standards. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of the automated production equipment for the steel reinforcement cage of precast box girders for highways according to the present invention.

[0025] Figure 2 for Figure 1 A top-view structural diagram.

[0026] Figure 3 This is a three-dimensional structural diagram of the automated production equipment of the present invention, which has longitudinal ribs and stirrups as a skeleton and hides the finished cable tray module.

[0027] Figure 4 for Figure 3 A schematic diagram of the three-dimensional structure after the longitudinal ribs and welding modules are hidden.

[0028] Figure 5 This is a three-dimensional structural diagram of the raw material bridge module of the present invention.

[0029] Figure 6 This is a three-dimensional structural diagram of the stirrup tooling module of the present invention.

[0030] Figure 7 for Figure 6A schematic diagram of the three-dimensional structure of the hoop-pulling mechanism and part of the moving wheel assembly after they are hidden.

[0031] Figure 8 This is a three-dimensional structural diagram of the stirrup magazine and the movable wheel assembly of the present invention.

[0032] Figure 9 for Figure 8 A three-dimensional structural diagram of the wedge-shaped positioning fixture.

[0033] Figure 10 for Figure 7 A three-dimensional structural diagram of the feed sensor group for the middle stirrup.

[0034] Figure 11 This is a three-dimensional structural diagram of the stirrup feeding mechanism and the stirrup magazine of the present invention.

[0035] Figure 12 This is a three-dimensional structural diagram of the stirrup feeding mechanism of the present invention.

[0036] Figure 13 This is an enlarged three-dimensional structural diagram of the sliding plate at one end of the push rod of the stirrup feeding mechanism of the present invention.

[0037] Figure 14 This is a three-dimensional structural diagram of the stirrup-pulling mechanism provided on both sides of the stirrup magazine of the present invention.

[0038] Figure 15 This is a three-dimensional structural diagram of the stirrup-pulling mechanism of the present invention.

[0039] Figure 16 for Figure 15 An enlarged three-dimensional structural diagram of the stirrup clamping unit.

[0040] Figure 17 for Figure 15 A three-dimensional structural diagram of the stirrup clamping unit, sliding beam, and sliding base from a rear view.

[0041] Figure 18 This is a schematic diagram of a stirrup skeleton according to the present invention.

[0042] Figure 19 This is a three-dimensional structural diagram of the rebar tensioning module of the present invention.

[0043] Figure 20 for Figure 19 A schematic diagram of the main structure.

[0044] Figure 21 for Figure 19 A three-dimensional structural diagram of a stirrup positioning mechanism.

[0045] Figure 22 for Figure 19A three-dimensional structural diagram of the tensioning mechanism for the middle and outer reinforcing bars.

[0046] Figure 23 for Figure 22 A three-dimensional structural diagram from another perspective.

[0047] Figure 24 for Figure 23 Another perspective is a three-dimensional structural diagram of the hidden part after the installation frame is installed.

[0048] Figure 25 for Figure 24 Another perspective is a three-dimensional structural diagram of the hidden part after the installation frame is installed.

[0049] Figure 26 for Figure 22 A schematic diagram of the main structure of the hook body after rotating 90 degrees.

[0050] Figure 27 for Figure 19 A three-dimensional structural diagram of the inner steel bar tensioning mechanism.

[0051] Figure 28 This is a three-dimensional structural diagram of the welding module of the present invention.

[0052] Figure 29 This is a three-dimensional structural diagram of the finished cable tray module of the present invention.

[0053] Figure 30 This is a three-dimensional structural diagram of the finished product transport line and the finished product traction mechanism of the finished product cable tray module of the present invention.

[0054] Figure 31 for Figure 30 A magnified schematic diagram of the three-dimensional structure.

[0055] Figure 32 for Figure 31 A schematic diagram of the concealed three-dimensional structure of the finished product's traction mechanism.

[0056] Figure 33 for Figure 32 An enlarged 3D structural diagram of a roller box hidden on a traction longitudinal beam.

[0057] Figure 34 for Figure 29 Enlarged three-dimensional structural diagram of the intermediate product traction mechanism and the mold entry lifting platform.

[0058] Figure 35 for Figure 34 A three-dimensional structural diagram of the mold entry lifting platform.

[0059] In the diagram, 100-raw material bridge module; 110-longitudinal rib guide tube; 120-raw material bridge moving guide rail; 130-guide beam; 140-roller support beam assembly; 141-roller support beam weldment; 142-horizontal lower roller; 143-roller support upright weldment; 144-inclined side roller; 150-guide plate weldment.

[0060] 200-Stirrup tooling module; 210-Stirrup magazine; 211-Magazine magazine base plate; 212-Magazine magazine support frame; 213-Suspension rod; 214-Lifting ring; 215-Limiting guide plate; 216-Positioning slot; 217-Stirrup feed sensor group; 220-Moving wheel group; 221-Support column; 222-Roller; 230-Wedge positioning tooling; 231-Wedge block; 232-Lifting component; 23 3-Positioning component; 234-Tooling support plate; 235-Tooling guide plate; 236-Vertical adjustment component; 237-Vertical angle steel; 238-Slot plate; 240-Stirrup feeding mechanism; 241-Push rod; 242-Frame; 243-Slide plate; 2431-Feed connecting plate; 244-Guide rail assembly; 2441-Rail wheel; 2442-Guide rail strip; 245-Transmission rod; 246-Drive component ; 247-Sprocket assembly; 2471-Driving sprocket; 2472-Driven sprocket; 2473-Tensioner; 2474-Chain; 248-Limit sensor; 250-Stirrup-pulling mechanism; 251-Stirrup clamping unit; 252-Sliding beam; 253-Sensor sensing element; 254-Sliding base; 255-Mechanism support; 256-Drive motor; 257-Limit stop; 258-Rack; 2 59-Gear; 2510-Sensor assembly; 2511-Gripper mounting; 2512-First cylinder; 2513-Second cylinder; 2514-First connecting plate; 2515-Gripper cylinder; 2516-Gripper; 2517-Second connecting plate; 2518-Through-beam sensor mounting bracket; 2519-Through-beam sensor; 260-Stirrup skeleton; 261-Base plate stirrup; 262-Side plate stirrup;

[0061] 300-Rebar tensioning module; 310-Gantry support; 320-Gantry crossbeam; 330-Gantry drive mechanism; 340-Gantry crossbeam guide rail; 350-Outer rebar tensioning mechanism; 351-Mounting frame; 352-Longitudinal rebar lifting module; 3521-Lifting cylinder; 3522-Lifting connecting plate; 3523-Lifting push rod; 3524-Push rod guide block; 3525-Support rod; 353-Longitudinal rebar tensioning module; 3531-Tensioning cylinder; 3532-Rack and pinion connecting block; 3533-Hook rack; 3534-Hook gear; 3535-Hook body; 360-Stirrup positioning mechanism; 361-Claw fixing frame; 362-Stirrup claw; 3621-Claw body; 363-Stirrup support; 3631-Support plate; 370-Inner rebar tensioning mechanism;

[0062] 400 - Welding module; 410 - Welding robot bracket; 420 - Welding robot;

[0063] 500 - Finished cable tray module; 510 - Traction cable tray; 511 - Traction longitudinal beam; 512 - Guide rail assembly; 5121 - Anti-tipping guide rail; 5122 - Anti-tipping roller; 5123 - Support guide rail; 5124 - Roller box; 5125 - Vertical roller; 5126 - Horizontal roller; 5127 - Crossbeam anti-collision block; 513 - Cable chain groove; 520 - Finished product conveyor line; 530 - Finished product traction mechanism; 531 - Traction drive assembly; 5311 - Motor mounting base; 5312 - Traction drive... 5313-Traction motor; 5314-Traction rack; 532-Traction crossbeam; 5321-Crossbeam connecting seat; 533-Longitudinal reinforcement clamping fixture; 5331-Longitudinal reinforcement fixing plate; 5332-Insertion hole; 5333-Crossbeam transition plate; 5334-Connecting frame plate; 540-Finished steel reinforcement skeleton; 550-Molding lifting platform; 551-Lifting support frame; 552-Lifting assembly; 553-Lifting longitudinal beam; 554-Reinforced crossbeam; 555-Lifting motor; 556-Sensor. Detailed Implementation

[0064] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0065] The automated production equipment for the steel reinforcement cage of precast box girders for highways of the present invention includes: a raw material supply device, a fixed welding workstation, and an automatic mold-feeding device. The steel reinforcement cage of the precast box girder for highways includes multiple stirrup cages 260 and multiple longitudinal bars. Each stirrup cage 260 includes a bottom plate stirrup 261 and side plate stirrups 262 welded to both ends of the bottom plate stirrup 261.

[0066] In this invention, "longitudinal" refers to the length direction of the steel reinforcement cage of the precast highway box girder, the length direction of the longitudinal bars, and the arrangement direction of the stirrup cage 260. "Transverse" refers to the width direction of the steel reinforcement cage of the precast highway box girder. The raw material supply device includes: a raw material cable tray module 100 and a stirrup tooling module 200.

[0067] The fixed welding workstation includes a rebar tensioning module 300 and a welding module 400. The automatic formwork loading device includes a finished cable tray module 500. The finished cable tray module 500 includes a finished product feeding device and a formwork loading lifting platform. In some embodiments, the finished cable tray module 500 further includes a concrete pouring mold.

[0068] In summary, the automated production equipment for the steel reinforcement cage of precast box girders for highways includes, in longitudinal order: a raw material cable tray module 100, a stirrup tooling module 200, a steel reinforcement tensioning module 300, a welding module 400, and a finished cable tray module 500. The raw material cable tray module 100 is located at the rear end of the stirrup tooling module 200, which is also located at the rear end of the steel reinforcement tensioning module 300. The steel reinforcement tensioning module 300 is located at the rear end of the welding module 400, and the welding module 400 is located at the rear end of the finished cable tray module 500. The front and rear ends of this invention describe the relative longitudinal positions of the automated production equipment for the steel reinforcement cage of precast box girders for highways. The equipment also includes a controller or control system electrically connected to the aforementioned modules or devices. The controller or control system enables coordinated control of the various modules or devices.

[0069] Based on the same inventive concept, the present invention proposes an automated production method for the steel reinforcement cage of precast box girders for highways, comprising the following steps:

[0070] Step 1: Prefabricate the stirrup skeleton 260 and longitudinal bars for the production of precast box girders for highways; specifically: according to the dimensions of the precast box girder for highways, prefabricate multiple bottom plate stirrups 261 and multiple side plate stirrups 262; weld a side plate stirrup 262 to both ends of each bottom plate stirrup 261 to form an integrated U-shaped stirrup skeleton 260.

[0071] Step 2: Install multiple stirrup frames 260 longitudinally onto the stirrup magazine 210;

[0072] Step 3: Insert multiple longitudinal ribs into the longitudinal rib guide tube 110 located at the rear end of the stirrup magazine 210. Use the longitudinal rib guide tube 110 to support and guide the longitudinal ribs to move longitudinally. Use the roller support beam group 140 set between the longitudinal rib guide tube 110 and the stirrup magazine 210 to support the longitudinal ribs, so that the longitudinal ribs pass through the stirrup skeleton 260 and extend to the front end of the stirrup magazine 210 and connect with the finished product feeding device.

[0073] Step 4: Use the stirrup feeding mechanism to push the stirrup skeleton 260 in the stirrup magazine 210 to the set position;

[0074] Step 5: Use the stirrup removal mechanism to remove the stirrup skeleton 260 located at the front end of the stirrup magazine 210;

[0075] Step 6: Use the steel bar tensioning module 300 located at the front end of the stirrup magazine 210 to pick up the stirrup skeleton 260 on the stirrup pulling mechanism and transfer it to the welding position, tension the longitudinal bar so that the longitudinal bar is close to the stirrup skeleton 260 at the welding position; specifically, this includes: using the stirrup positioning mechanism to clamp the stirrup skeleton 260 on the stirrup pulling mechanism and transfer the stirrup skeleton 260 to the welding position.

[0076] The steel bar tensioning mechanism is used to tension multiple longitudinal bars at the welding position, so that each longitudinal bar is tightly attached to the stirrup skeleton at the welding position at 260 degrees.

[0077] Step 7: Using the welding module 400 set at the front end of the rebar tensioning module 300, weld the stirrup skeleton 260 at the welding position to the longitudinal bars, and complete the welding of one stirrup skeleton 260 to multiple longitudinal bars.

[0078] Step 8: Use the finished product feeding device set at the front end of the welding module 400 to pull the longitudinal bar and the stirrup skeleton 260 welded on the longitudinal bar forward by one stirrup spacing; return to step 4 until all the stirrup skeletons 260 on the stirrup magazine 210 are welded, and the production of the finished steel reinforcement skeleton is completed.

[0079] Step 9: Release the traction of the longitudinal reinforcement by the finished product traction mechanism; use the mold entry lifting platform set at the front end of the finished product feeding device to lift the finished product traction mechanism; drive the finished steel cage carried on the finished product transport line to pass under the finished product traction mechanism and move forward to the next station to enter the mold.

[0080] The raw material bridge module 100 includes: longitudinal rib guide tube 110, raw material bridge moving guide rail 120, guide beam 130, and roller support beam assembly 140.

[0081] The longitudinal reinforcement guide tube 110 is located at the rear end of the stirrup magazine 210 and is used to support and guide the longitudinal reinforcement to move longitudinally, so that the longitudinal reinforcement passes through the stirrup skeleton 260. The longitudinal reinforcement guide tube 110 includes multiple hollow bottom plate longitudinal reinforcement guide tubes 110 and side plate longitudinal reinforcement guide tubes 110 arranged in parallel; the distribution position and number of the bottom plate longitudinal reinforcement guide tubes 110 and the side plate longitudinal reinforcement guide tubes 110 correspond one-to-one with the distribution position and number of the longitudinal reinforcement in the precast box girder steel reinforcement skeleton of the highway.

[0082] Each stirrup skeleton 260 includes a bottom plate stirrup 261 and side plate stirrups 262 welded to both ends of the bottom plate stirrup 261; the bottom plate longitudinal reinforcement guide tube 110 is inserted to weld the longitudinal reinforcement to the bottom plate stirrup 261; the side plate longitudinal reinforcement guide tube 110 is inserted to weld the longitudinal reinforcement to the side plate stirrup 262.

[0083] The material cable tray moving guide rail 120 is set on both sides of the longitudinal reinforcement and the longitudinal reinforcement guide tube 110; the guide beam 130 is set in the transverse direction, and its two ends are respectively engaged with the material cable tray moving guide rail 120 on both sides, and move in the longitudinal direction; the rear end of the longitudinal reinforcement guide tube 110 is fixed to the guide beam 130, and the front end of the longitudinal reinforcement guide tube 110 is a cantilever end, pointing towards the stirrup magazine 210. The movement of the guide beam 130 on the material cable tray moving guide rail 120 drives the longitudinal reinforcement guide tube 110 to move in the longitudinal direction.

[0084] To ensure the smooth movement and support of the longitudinal rib guide tube 110, a roller support beam assembly 140 is supported between the rear and front ends of the longitudinal rib guide tube 110 and moves along the raw material bridge moving guide rail 120.

[0085] The roller support beam assembly 140 includes: roller support beam welded component 141, horizontal lower roller 142, roller support upright welded component 143, and inclined side roller 144.

[0086] The roller support beam weldment 141 is arranged transversely along its length, and its two ends are respectively engaged with two material bridge moving guide rails 120. The roller support beam weldment 141 is similar to the guide beam 130, and can move longitudinally on the material bridge moving guide rails 120.

[0087] The horizontal lower roller 142 is tumblingly connected above the roller support beam welded part 141, and is used to support the bottom plate longitudinal rib guide tube 110. Multiple bottom plate longitudinal rib guide tubes 110 are horizontally laid on the horizontal lower roller 142, with adjacent bottom plate longitudinal rib guide tubes 110 maintaining a transverse spacing, and each bottom plate longitudinal rib guide tube 110 is arranged longitudinally along its length. When the longitudinal rib guide tube 110 is driven to move longitudinally, the horizontal lower roller 142 tumblingly supports the bottom plate longitudinal rib guide tube 110, reducing movement resistance while providing support for the bottom plate longitudinal rib guide tube 110 and preventing downward bending deformation.

[0088] There are two sets of roller support frame welded parts 143. The two sets of roller support frame welded parts 143 are connected above the roller support crossbeam welded parts 141 and are located at both ends of the horizontal lower roller 142. The roller support frame is inclined, and the slope of the inclined plane is the same as the slope of the side plate stirrups 262 of the precast box girder steel reinforcement skeleton of the highway.

[0089] The inclined side roller 144 is connected to the roller support frame and is used to support the side plate longitudinal rib guide tube 110. The inclined side roller 144 can rotate relative to the roller support frame. The side plate longitudinal rib guide tube 110 contacts the inclined side roller 144, reducing the resistance to the movement of the side plate longitudinal rib guide tube 110. The inclined side roller 144 can clamp on both sides of the side plate longitudinal rib guide tube 110, providing support and limiting for the side plate longitudinal rib guide tube 110, guiding the side plate longitudinal rib guide tube 110 to move longitudinally, and preventing the longitudinal rib guide tube 110 from shifting laterally.

[0090] The rear ends of the multiple longitudinal reinforcing bar guide pipes 110 are connected to guide plate weldments 150; the guide plate weldments 150 are connected to the guide beam 130. The guide plate weldments 150 are suspended below the guide beam 130. The outline of the guide plate weldment 150 is similar to the transverse cross-sectional outline of the precast highway box girder reinforcement skeleton in the vertical plane. The guide plate weldment 150 adopts an inverted trapezoidal frame weldment, and multiple through holes are provided on its sides and bottom. The location and number of through holes correspond one-to-one with the distribution location and number of longitudinal reinforcing bars in the precast highway box girder reinforcement skeleton. Each through hole is used to install the rear end of the longitudinal reinforcing bar guide pipe 110.

[0091] The stirrup tooling module 200 includes a stirrup magazine 210, a moving wheel set, a wedge positioning tool, a stirrup feeding mechanism, and a stirrup pulling mechanism.

[0092] The stirrup magazine 210 is used to carry multiple stirrup skeletons 260; the stirrup feeding mechanism is used to push the stirrup skeletons 260 in the stirrup magazine 210 to a set position; and the stirrup removing mechanism is used to remove the stirrup skeletons 260 located at the front end of the stirrup magazine 210 one by one.

[0093] Specifically, the reinforced magazine 210 includes a magazine base plate and a suspension rod disposed above the magazine base plate; multiple stirrup skeletons 260 arranged along the longitudinal ribs are suspended on the suspension rod, and the length direction of the suspension rod is arranged longitudinally; there are two suspension rods, which are arranged laterally at intervals, the rear ends of the two suspension rods are connected to the magazine base plate, and the front ends of the suspension rods are cantilever ends, from which the stirrup skeletons 260 can be pushed out.

[0094] The magazine base plate is provided with positioning slots, the length of which is longitudinal. The stirrup tooling module 200 also includes a stirrup feed sensor assembly. The stirrup feed sensor assembly is located below the magazine base plate and cooperates with the positioning slots for the initial positioning of the stirrup magazine 210. The stirrup feed sensor assembly includes a bracket fixed to the ground and a feed sensor assembly mounted on the bracket. In some embodiments, the feed sensor assembly is also connected to a lifting cylinder, which is used to adjust the height of the feed sensor assembly.

[0095] Since the hoop magazine 210 can move longitudinally, when the magazine base plate moves longitudinally, the positioning strip hole at its bottom cooperates with the hoop feed sensor group fixed on the ground. When the hoop feed sensor group detects the positioning strip hole, the controller or control system of the equipment can know the approximate position of the hoop magazine 210, thereby realizing the initial positioning of the hoop magazine 210.

[0096] In this embodiment, two positioning strip holes are spaced apart along the length of the magazine base plate, and each positioning strip hole is equipped with a hoop feed sensor group. The hoop magazine 210 needs to move forward and backward, and the initial positioning of the hoop magazine 210 in either direction can be achieved by using the two hoop feed sensor groups.

[0097] The sliding wheel assembly is located at the bottom of the magazine base plate and slides or rolls with it. Multiple sliding wheel assemblies can be configured, spaced longitudinally, with the distance between two adjacent longitudinally adjacent assemblies being less than the length of the magazine base plate. The magazine base plate has at least two sliding wheel assemblies along its width. Under the action of the sliding wheel assemblies, the magazine base plate can move longitudinally, thereby allowing the reinforced magazine 210 to move longitudinally.

[0098] The wedge positioning fixture includes a wedge block, a lifting component, and a positioning element; the positioning element is located at the bottom of the magazine base plate; the wedge block is located below the magazine base plate; the lifting component is connected to the wedge block and is used to drive the wedge block to rise and fall, and to engage with the positioning element to achieve secondary positioning of the stirrup magazine 210.

[0099] After the stirrup feed sensor group mates with the positioning strip hole, the stirrup magazine 210 is initially positioned and then stops moving. The lifting component raises the wedge block until it contacts the positioning element. Under the action of the wedge block, the movement of the stirrup magazine 210 is restricted, keeping it in the desired position. When it is necessary to fix the stirrup magazine 210, the lifting component lowers the wedge block, separating it from the positioning element. The top of the wedge block has a slot; the positioning element includes a positioning block that inserts into the slot. One longitudinal end of the wedge block has an opening communicating with the slot, allowing the positioning block to move longitudinally into the slot. Therefore, before performing secondary positioning of the stirrup magazine 210, the wedge block can be raised to the target height in advance using the lifting component. When the positioning block at the bottom of the stirrup magazine 210 moves longitudinally, it enters the slot through the opening of the wedge block. The other end of the wedge block is closed in the longitudinal direction, which hinders the continued movement of the positioning block and thus restricts the continued movement of the stirrup magazine 210.

[0100] The wedge positioning fixture has a similar structure to the stirrup feed sensor assembly. The difference lies in that the wedge positioning fixture uses contact positioning, while the stirrup feed sensor assembly uses non-contact positioning. Compared to the stirrup feed sensor assembly, the wedge positioning fixture achieves higher positioning accuracy.

[0101] Two sets of wedge positioning fixtures can be set up, with the two sets of wedge positioning fixtures spaced apart along the longitudinal direction.

[0102] The stirrup feeding mechanism includes: a frame 242, a slide plate 243, a transmission assembly, a drive component 246, a push rod 241, a guide rail assembly 244, a moving wheel set 220, and two limit sensors 248.

[0103] A stirrup magazine 210 for suspending stirrup skeletons 260 is disposed above the frame 242; the stirrup magazine 210 is located above the frame 242 but is not connected to the frame 242. A movable wheel assembly 220 is supported on the bottom of the stirrup magazine 210 and is movably engaged with it. The movable wheel assembly 220 includes a support column and rollers rotatably disposed on the top of the support column; the rollers are in rolling engagement with the bottom of the stirrup magazine 210. Under the action of the movable wheel assembly 220, the stirrup magazine 210 can move longitudinally, which refers to the length direction of the stirrup magazine 210 and also the length direction of the precast box girder reinforcement skeleton. The arrangement direction of the multiple stirrup skeletons 260 suspended on the stirrup magazine 210 is consistent with the length direction of the stirrup magazine 210. The precast box girder reinforcement skeleton is welded together from multiple longitudinal bars and multiple stirrup skeletons 260. The movable wheel assembly 220 is supported on the bottom of the magazine base plate and is in rolling engagement with it.

[0104] The frame 242 of the stirrup feeding mechanism includes two parallel longitudinal beams connected by a crossbeam. Each longitudinal beam has a sliding plate 243 that slides within the beam. The two ends of the push rod 241 are connected to the sliding plates 243 on the two longitudinal beams respectively; the push rod 241 passes through the stirrup magazine 210 and abuts against the rear end of the stirrup skeleton 260 suspended from the magazine 210; the push rod 241 is detachably connected to the sliding plates 243. A transmission assembly connects the drive component 246 and the sliding plates 243, with the drive component 246 driving the sliding plates 243 and the push rod 241 to move synchronously along the longitudinal beams.

[0105] Specifically, the transmission assembly includes a transmission rod 245 and sprocket assemblies 247 disposed at both ends of the transmission rod 245; the transmission rod 245 is connected to the drive component 246; the sprocket assembly 247 includes a drive wheel 2471, a chain 2474, two driven wheels 2472, and two tension wheels 2473; the drive wheel 2471 is connected to the transmission rod 245; the two driven wheels 2472 are distributed at both ends of the longitudinal beam, the chain 2474 passes around the drive wheel 2471 and the two driven wheels 2472, and the chain 2474 located between the two driven wheels 2472 is connected to the slide plate 243. The tension wheel 2473 is disposed between the drive wheel 2471 and the driven wheels 2472, and the tension wheel 2473 cooperates with the chain 2474. The tension wheel 2473 is installed below the longitudinal beam of the frame 242. Under the action of the tension wheel 2473, the chain 2474 between the two driven wheels 2472 above the longitudinal beam remains horizontal. The bottom of the slide plate 243 is provided with a feed connecting plate 2431; the feed connecting plate 2431 is connected to the chain 2474 between the two driven wheels 2472.

[0106] The drive component 246 uses a drive motor, which drives the transmission rod 245 to rotate, thereby causing the drive wheels 2471 at both ends of the transmission rod 245 to rotate. Under the action of the driven wheel 2472, the chain 2474 moves horizontally, thereby causing the feed connecting plate 2431 and the slide plate 243 to move horizontally, which in turn causes the push rod 241 to move horizontally. Since the push rod 241 abuts against the end of the stirrup skeleton 260, the stirrup skeleton 260 is pushed and translated by the push rod 241, realizing the automatic feeding of the stirrup skeleton 260 to the welding station. The stirrup skeleton 260 is welded to the longitudinal reinforcement of the box girder at the welding station to form the box girder steel reinforcement skeleton.

[0107] A set of guide rail assemblies 244 are respectively provided on opposite sides of the longitudinal beam. Specifically, the guide rail assembly 244 includes a guide rail 2442 and a track wheel 2441; the guide rail 2442 is installed on one side of the longitudinal beam, and the guide rail 2442 is provided with a longitudinal track groove; a part of the track wheel 2441 is embedded in the track groove, and the track wheel 2441 is connected to the slide plate 243. Since the slide plate 243 is located above the longitudinal beam, and the guide rail assemblies are respectively provided on both sides of the longitudinal beam, the slide plate 243 is provided with matching track wheels 2441 and guide rails 2442 on both sides of the longitudinal beam, which not only guides the slide plate 243 to move along the length direction of the longitudinal beam, but also prevents the slide plate 243 from tipping over, ensuring the smooth movement of the push rod 241. The slide plate 243 can move forward or backward along the length direction of the longitudinal beam, making reciprocating motion. Two limit sensors 248 are respectively provided at both ends of the longitudinal beam and located between two driven wheels 2472; the slide plate 243 is located between the two limit sensors 248. When the slide plate 243 moves close to the limit sensor 248, the limit sensor 248 sends a command to the drive motor, which then cuts off power or reverses to limit the translation range of the slide plate 243. The drive component 246 drives the slide plate 243 and the push rod 241 to move synchronously along the longitudinal beam. Under the action of the push rod 241, the stirrup skeleton 260 on the stirrup magazine 210 moves synchronously, separating the stirrup skeleton 260 from the stirrup magazine 210 one by one. This enables automatic feeding of the stirrup skeleton 260 in the next welding station, facilitating the welding of the stirrup skeleton 260 to the longitudinal reinforcement in subsequent stations. This provides a fundamental guarantee for the automated production of the precast box girder steel reinforcement skeleton.

[0108] The stirrup-pulling mechanism includes: a stirrup clamping unit 251, a sliding crossbeam 252, a sliding base 254, a mechanism support 255, a drive motor 256, and a transmission assembly.

[0109] There are two mechanism supports 255, which are distributed on both sides of the stirrup magazine 210. Since the stirrup skeleton 260 cannot be placed completely regularly in the stirrup magazine 210, in order to ensure that the stirrup clamping unit 251 can reliably grip the stirrup skeleton 260, a total of four gripping points are set, two on each side of the stirrup magazine 210. The four stirrup clamping units 251 are used to grip the diagonal edges of the stirrup skeleton 260 near the four corners.

[0110] The reinforced magazine 210 includes a magazine base plate, a magazine support frame, and a suspension rod disposed above the magazine base plate; the magazine support frame is connected to one end of the magazine base plate and the suspension rod. A series of reinforcing ribs 260 are suspended from the suspension rod, and the magazine base plate is supported at the bottom of the reinforcing ribs 260.

[0111] The sliding base 254 is fixedly mounted on the mechanism support 255. The outline of the stirrup skeleton 260 is an inverted trapezoid. The end face of the mechanism support 255 opposite the stirrup magazine 210 is an inclined plane, the slope of which is the same as the slope of the hypotenuse of the stirrup skeleton 260. Two sliding bases 254 are mounted on the inclined plane. The two sliding bases 254 are spaced apart along the height direction of the mechanism support 255. The sliding crossbeam 252 is horizontally mounted on the sliding base 254 and slides longitudinally with it.

[0112] The stirrup clamping unit 251 is mounted on the sliding crossbeam 252 and is used to grab the stirrup skeleton 260 on the stirrup magazine 210 one by one.

[0113] One end of the sliding beam 252 is connected to the stirrup clamping unit 251, and the other end is connected to the sensor sensing plate 253; a sensor assembly 2510 that cooperates with the sensor sensing plate 253 is provided on the sliding base 254 or the mechanism support 255. The relative distance between the sensor assembly 2510 and the sensor sensing plate 253 is used to limit the sliding distance of the sliding beam 252.

[0114] A drive motor 256 and a transmission assembly cooperate and are located at opposite ends of the sliding base 254; the transmission assembly connects to the sliding beam 252. The transmission assembly includes a meshing gear 259 and a rack 258. The rack 258 is fixedly mounted on the sliding beam 252. While the gear 259 meshes with the rack 258, the center of the gear 259 is connected to the output shaft of the drive motor 256, which also passes through the sliding base 254. A guide rail parallel to the rack 258 is also provided on the sliding beam 252, and a slider is fitted on the guide rail, connected to the sliding base 254. The length direction of the rack 258 is the same as the length direction of the sliding beam 252. Under the action of the drive motor 256, the gear 259 is driven to rotate, and the gear 259 meshes with the rack 258 fixed on the sliding beam 252, thereby causing the sliding beam 252 to translate. The translation of the sliding beam 252 causes the stirrup clamping unit 251 at one end of it to move synchronously.

[0115] To prevent the sliding beam 252 from coming off the sliding base 254, limit blocks 257 are fixedly connected to both ends of the sliding beam 252.

[0116] The stirrup clamping unit 251 includes a gripper mounting component 2511, a first cylinder 2512, a clamping component, a first connecting plate 2514, a second cylinder 2513, a through-beam sensor 2519, a second connecting plate 2517, and a through-beam sensor mounting bracket 2518. The gripper mounting component 2511 is connected to the sliding beam 252. The first cylinder 2512 is mounted on the gripper mounting component 2511 and connected to the clamping component, used to drive the clamping component to move closer to or away from the stirrup skeleton 260; the clamping component is used to clamp the stirrup skeleton 260. The clamping component includes a gripper cylinder 2515 and a gripper 2516 connected to the gripper cylinder 2515. The gripper cylinder 2515 and the gripper 2516 are existing finished products. Under the action of the gripper cylinder 2515, the gripper 2516 is driven to open or close. The first connecting plate 2514 connects the gripper cylinder 2515 and the first cylinder 2512. The second cylinder 2513 is mounted on the gripper mounting member 2511 and is connected to the through-beam sensor 2519, used to drive the through-beam sensor 2519 closer to or further away from the stirrup frame 260. The extension and retraction directions of the second cylinder 2513 and the first cylinder 2512 are the same. In this embodiment, the second cylinder 2513 is located below the first cylinder 2512. The first cylinder 2512 is mounted on the top of the gripper mounting member 2511, and the second cylinder 2513 is mounted on the bottom of the gripper mounting member 2511.

[0117] The second connecting plate 2517 connects the second cylinder 2513 and the through-beam sensor mounting bracket 2518; the through-beam sensor 2519 is mounted on the through-beam sensor mounting bracket 2518. The through-beam sensor 2519 is used to detect the position of the stirrup skeleton 260.

[0118] Of course, the stirrup-pulling mechanism also includes a controller, which is electrically connected to the drive motor 256, the first cylinder 2512, the second cylinder 2513, the gripper cylinder 2515, the sensor assembly 2510, and the through-beam sensor 2519.

[0119] During operation, the second cylinder 2513 first actuates, causing the through-beam sensor mounting bracket 2518 to extend. The sliding beam 252 then moves the stirrup clamping unit 251 closer to the end of the stirrup skeleton 260 in the stirrup magazine 210, triggering the through-beam sensor 2519. The controller then controls the second cylinder 2513 to extend the clamping component. The clamping jaw cylinder 2515 closes, causing the two jaws 2516 to clamp one stirrup skeleton 260. All four stirrup clamping units 251 perform the same action, clamping the stirrup skeleton 260 at four points. The sliding beams 252 of the four stirrup clamping units 251 then move synchronously relative to the sliding base 254 away from the stirrup magazine 210, removing the stirrup skeleton 260 from the magazine and pushing it to the target position at the next workstation. In the production of the box girder reinforcement cage, the next station is the welding station. After the stirrup cage 260 is pushed to the welding station by the stirrup-pulling mechanism, the stirrup cage 260 is welded to the longitudinal reinforcement at the welding station using welding equipment. This solves the problem of traditional stirrup cages needing to be manually removed from the stirrup magazine one by one, providing a guarantee for subsequent automated production. The mechanism has a simple structure, high reliability, and is easy to implement.

[0120] The rebar tensioning module includes a gantry support 310, a gantry beam 320, a gantry drive mechanism 330, a gantry beam guide rail 340, an outer rebar tensioning mechanism 350, a stirrup positioning mechanism 360, and an inner rebar tensioning mechanism 370.

[0121] The gantry support 310 includes a pair of spaced-apart gantry frames for providing structural support; a gantry beam guide rail 340 is mounted on the upper end of the gantry frame, and the two ends of the gantry beam 320 are respectively mounted on the gantry beam guide rail 340 and can move along the gantry beam guide rail 340; a gantry drive mechanism 330 is mounted on the gantry beam 320 and is used to drive the gantry beam 320 to move along the gantry beam guide rail 340.

[0122] The stirrup positioning mechanism 360 is fixedly installed on the gantry beam 320; the outer rebar tensioning mechanism 350 and the inner rebar tensioning mechanism 370 are both installed on the gantry beam 320 and can move horizontally along the gantry beam 320 respectively. The stirrup positioning mechanism 360 is used to clamp the stirrup skeleton 260 from the stirrup pulling mechanism of the previous station and move the stirrup skeleton 260 to the position to be welded; the outer rebar tensioning mechanism 350 and the inner rebar tensioning mechanism 370 are used to provide tension to the longitudinal bars to be welded before welding, ensuring that the lapped stirrup skeleton 260 is tightly attached to the longitudinal bars.

[0123] The stirrup positioning mechanism 360 mainly includes a clamp fixing frame 361, multiple stirrup clamps 362, and stirrup supports 363. The upper end of the clamp fixing frame 361 is fixedly connected to the gantry beam 320. The multiple stirrup clamps 362 and stirrup supports 363 are arranged on the clamp fixing frame 361 from top to bottom. The stirrup clamp 362 includes a first cylinder and a clamp body 3621 connected to the first cylinder. The clamp body 3621 has a slot that matches the outer diameter of the stirrup skeleton 260. The clamp body 3621 is driven to extend by the first cylinder, so that the slot locks the side of the stirrup skeleton 260. The stirrup supports 363 include a second cylinder and a support plate 3631 connected to the second cylinder. The support plate 3631 is driven by the second cylinder to extend to the bottom of the stirrup skeleton 260 and support the stirrup skeleton 260.

[0124] A clamping bracket 361 includes two stirrup clamps 362 and two stirrup positioning mechanisms 360, which together form a stirrup positioning mechanism, used to clamp the two sides of the stirrup skeleton 260 respectively.

[0125] During operation, the gantry beam 320 drives the stirrup positioning mechanism 360 to move backward along the gantry beam guide rail 340 to the stirrup pulling mechanism. The stirrup clamp 362 clamps the side steel bars of the stirrup skeleton 260, and the stirrup support 363 supports the bottom of the stirrup skeleton 260. Then it returns to the position to be processed.

[0126] The outer steel bar tensioning mechanism 350 includes a first mounting frame 351, a longitudinal bar support module 352 and a longitudinal bar tensioning module 353 mounted on the first mounting frame 351, and a first moving guide rail. The first moving guide rail is mounted on the gantry beam 320, and the first mounting frame 351 is connected to the first moving guide rail, so that the whole can move horizontally along the gantry beam 320. The longitudinal rib support module 352 includes a support cylinder 3521, a support connecting plate 3522, a support push rod 3523, multiple push rod guide blocks 3524, and multiple parallel support rods 3525. The support cylinder 3521 is fixedly installed on the mounting frame 351. The end of the cylinder rod of the support cylinder 3521 is connected to the support connecting plate 3522. The support connecting plate 3522 is connected to the support push rod 3523. Multiple parallel support rods 3525 are fixedly connected to the support push rod 3523. The push rod guide block 3524 is fixedly installed on the mounting frame 351 and is used to limit the movement direction of the support push rod 3523. It is C-shaped. Multiple push rod guide blocks 3524 are distributed in a straight line. The support push rod 3523 passes through the middle of the multiple push rod guide blocks 3524, so that the support push rod 3523 moves back and forth along the path defined by the push rod guide blocks 3524. There are three push rod guide blocks 3524.

[0127] During operation, the lifting cylinder 3521 drives the lifting connecting plate 3522 to drive the lifting push rod 3523 to reciprocate along the direction defined by the push rod guide block 3524, thereby driving the support rod 3525 to move vertically, realizing the lifting and lowering action of the longitudinal rib, ensuring that the longitudinal rib can be at the predetermined height position during welding operation.

[0128] The longitudinal rib tensioning module 353 includes a tensioning cylinder 3531, a rack connecting block 3532, a hook rack 3533, multiple hook gears 3534, and multiple hook bodies 3535. The tensioning cylinder 3531 is fixed on the first mounting frame 351. The end of the cylinder rod of the tensioning cylinder 3531 is connected to the rack connecting block 3532, and the rack connecting block 3532 is connected to the hook rack 3533. Multiple parallel hook gears 3534 mesh with the hook rack 3533, and a hook body 3535 is fixedly connected to the gear shaft of each hook gear 3534. The hook body 3535 is an L-shaped rod, including a connecting section and a free section. One end of the connecting section is fixedly connected to the center of the hook gear 3534 to rotate with the hook gear 3534, and the other end of the connecting section is connected to the free section, which rotates around the connecting section.

[0129] The tensioning cylinder 3531 drives the rack connecting block 3532, which in turn pushes the hook rack 3533 to move up and down reciprocally. The hook rack 3533, through meshing motion, drives multiple hook gears 3534 to rotate 90 degrees in both directions, thereby driving each hook body 3535 to rotate 90 degrees in both directions, thus achieving the switching between the open and closed working states of the hook body 3535. The initial state of the hook body 3535 is that the hook is closed, and the free section of the hook body 3535 is parallel to the longitudinal rib; the working state is that the hook is open, and the free section of the hook body 3535 is perpendicular to the longitudinal rib.

[0130] During operation, the hook body 3535 is first in a closed state (the free section of the hook body 3535 is parallel to the longitudinal reinforcement, so that the free section of the hook body 3535 can pass through the middle of the adjacent longitudinal reinforcement). The outer reinforcement tensioning mechanism 350 moves inward, and the lifting cylinder 3521 drives the support rod 3525 to lift upward, ensuring that the longitudinal reinforcement is at the predetermined height position. Then, the tensioning cylinder 3531 drives the hook body 3535 to rotate 90 degrees, so that the hook body 3535 switches to the open state (the free section of the hook body 3535 is perpendicular to the longitudinal reinforcement, so that it can hook the longitudinal reinforcement). Finally, the outer longitudinal reinforcement tensioning mechanism 5 moves outward, and the hook body 3535 pulls the longitudinal reinforcement outward so that it fits against the stirrup skeleton 260.

[0131] The structure of the inner rebar tensioning mechanism 370 is similar to that of the outer rebar tensioning mechanism 350, but it lacks the longitudinal rebar support module compared to the outer rebar tensioning mechanism 350. The action direction of its longitudinal rebar tensioning module is opposite to that of the outer rebar tensioning mechanism 350.

[0132] Specifically, the inner rebar tensioning mechanism 370 includes a second mounting frame, a longitudinal rebar tensioning module 353 mounted on the second mounting frame, and a second movable guide rail mounted on the gantry beam 320. The second mounting frame is connected to the second movable guide rail, so that the entire inner rebar tensioning mechanism can move horizontally along the gantry beam 320. In some embodiments, the second movable guide rail can be replaced by a first movable guide rail.

[0133] During operation, the hook body of the inner rebar tensioning mechanism 370 is first in a closed state, and the inner rebar tensioning mechanism 370 moves outward; then the hook body of the inner rebar tensioning mechanism 370 is switched to an open state; finally, the inner rebar tensioning mechanism 370 moves inward, and the hook body pulls the longitudinal bar inward to make it fit with the stirrup skeleton 260.

[0134] The workflow of the aforementioned rebar tensioning module is as follows: the gantry beam 320 drives the stirrup positioning mechanism 360 to move backward along the gantry beam guide rail 340 to the stirrup-pulling mechanism, where the stirrup positioning mechanism 360 picks up the stripped stirrup skeleton 260; the gantry beam 320 drives the stirrup positioning mechanism 360 back to the welding position along the gantry beam guide rail 340; the outer rebar tensioning mechanism 350 moves along the gantry beam 320, pulling the longitudinal bars outward to fit against the stirrup skeleton 260, while the inner rebar tensioning mechanism 370 moves in the opposite direction along the gantry beam 320, pulling the longitudinal bars inward to fit against the stirrup skeleton 260. This rebar tensioning module solves the problem of positioning and tensioning contact between the stirrup skeleton 260 and the longitudinal bars before welding; compared to manual operation, the automated solution greatly improves production efficiency and ensures subsequent welding quality.

[0135] The welding module 400 includes a welding robot support 410 and welding robots 420 mounted on the support 410. There are three sets of welding robots 420. The welding robot support 410 includes a portal frame, with one set of welding robots 420 mounted on each of the portal frame's crossbeam and two columns. The stirrup skeleton 260 includes bottom plate stirrups 261 and side plate stirrups 262 welded to both ends of the bottom plate stirrups 261. The welding robots 420 on the portal frame's crossbeam are responsible for welding the bottom plate stirrups 261 to the longitudinal reinforcement, while the welding robots 420 on the two columns are responsible for welding the two side plate stirrups 262 to the longitudinal reinforcement, respectively.

[0136] The finished cable tray module includes: a finished product feeding device, a formwork lifting platform, and a concrete pouring mold; the formwork lifting platform is located at the front end of the finished product feeding device; the concrete pouring mold is located at the front end of the formwork lifting platform.

[0137] The finished product feeding device includes: a traction bridge 510, a finished product transport line 520, and a finished product traction mechanism 530.

[0138] The finished product transport line 520 is used to carry the finished steel reinforcement cage 540; the finished product transport line 520 passes under the mold lifting platform and extends into the concrete pouring mold.

[0139] The finished steel reinforcement cage 540 includes longitudinal bars and stirrup cages. There are multiple stirrup cages, arranged sequentially along the length of the longitudinal bars. There are multiple longitudinal bars, arranged circumferentially along each stirrup cage. Both the finished steel reinforcement cage 540 and the semi-finished steel reinforcement cage are placed on the finished product transport line 520. When the number of stirrup cages welded to the longitudinal bars has not yet reached the design quantity, the steel reinforcement cage is considered a semi-finished product and is referred to as a semi-finished steel reinforcement cage. The finished product transport line includes multiple interconnected transport modules, each transport module being a plate chain conveyor structure.

[0140] The finished product transport line 520 has traction bridges 510 on both sides; the traction bridges 510 include traction longitudinal beams 511; guide rail assemblies 512 are installed on the traction longitudinal beams 511; the bottom of the traction longitudinal beams 511 is connected to bridge support columns for supporting the traction longitudinal beams 511. The finished product traction mechanism 530 is located at both ends on the traction longitudinal beams 511 on both sides of the finished product transport line 520, and drags the finished steel reinforcement skeleton 540 along the traction longitudinal beams 511 towards the front end of the traction longitudinal beams 511 under the cooperative action of the finished product transport line. The finished product traction mechanism 530 includes a traction drive assembly 531, a traction crossbeam 532, and a longitudinal reinforcement clamping fixture 533. During the production of the steel reinforcement skeleton for precast box girders of highways, a stirrup magazine and a welding station are also installed at the rear end of the traction longitudinal beams 511, where the welding station is also called a welding module. Multiple stirrup skeletons are suspended sequentially on the stirrup magazine. The front ends of the longitudinal bars of the precast box girder steel reinforcement cage pass through the stirrup cage on the stirrup magazine in sequence and are connected to the longitudinal bar clamping fixture 533. Thus, the finished product traction mechanism 530 can pull the longitudinal bars and the finished or semi-finished steel reinforcement cage as a whole to move towards the front end of the traction longitudinal beam 511.

[0141] The traction beam 532 is provided with traction drive components 531 at both ends. The traction drive components 531 cooperate with the guide rail components 512 to traction the finished product traction mechanism 530 to move along the traction longitudinal beam 511. The longitudinal rib clamping fixture 533 is connected to the traction beam 532 and is located between the traction drive components 531 at both ends.

[0142] The longitudinal reinforcement clamping fixture 533 includes a longitudinal reinforcement fixing plate 5331, multiple insertion holes 5332 set on the longitudinal reinforcement fixing plate 5331, and a locking member set on the end of the insertion hole 5332 facing away from the longitudinal reinforcement. The number and position of the insertion holes 5332 correspond one-to-one with the number and position of the longitudinal reinforcement of the finished steel reinforcement cage 540. The locking member is connected to the longitudinal reinforcement passing through the insertion hole 5332.

[0143] The longitudinal reinforcement clamping fixture 533 also includes a crossbeam transition plate 5333 and a connecting frame plate 5334; the longitudinal reinforcement fixing plate 5331 is connected to the connecting frame plate 5334, and the insertion hole 5332 on the longitudinal reinforcement fixing plate 5331 passes through the connecting frame plate 5334; a locking member is provided at one end of the connecting frame plate 5334 opposite to the longitudinal reinforcement fixing plate 5331; the connecting frame plate 5334 is connected to the crossbeam transition plate 5333, and the crossbeam transition plate 5333 is connected to the traction crossbeam 532. The connecting frame plate 5334 has a cross-sectional profile similar to that of the stirrup skeleton. The locking member can be a locking bolt or a locking nut. After the front end of the longitudinal reinforcement passes through the insertion hole 5332 on the longitudinal reinforcement fixing plate 5331 and the connecting frame plate 5334 in sequence, it is connected to the locking member, thereby fixing the longitudinal reinforcement to the longitudinal reinforcement clamping fixture 533.

[0144] The connecting frame plate 5334 is detachably connected to the longitudinal reinforcement fixing plate 5331; the crossbeam transition plate 5333 is detachably connected to the connecting frame plate 5334. By disassembling the connecting frame plate 5334, the crossbeam transition plate 5333, and the longitudinal reinforcement fixing plate 5331, different models of the longitudinal reinforcement fixing plate 5331 can be replaced, so that the position and number of the insertion holes 5332 on the longitudinal reinforcement fixing plate 5331 are different, so as to be suitable for the production of box girder reinforcement cages of different sizes.

[0145] The traction drive assembly 531 includes a motor mounting base 5311, a traction drive motor 5312, a traction gear 5313, and a traction rack 5314; the motor mounting base 5311 is connected to the traction beam 532; the traction drive motor 5312 is mounted on the motor mounting base 5311, and the output shaft of the traction drive motor 5312 is connected to the traction gear 5313; the traction gear 5313 meshes with the traction rack 5314 fixed to one side of the traction beam 511.

[0146] The guide rail assembly 512 includes an anti-tipping guide rail 5121, an anti-tipping roller 5122, a support guide rail 5123, a roller box 5124, and a roller assembly. The anti-tipping guide rail 5121 is fixed to one side of the traction longitudinal beam 511. The anti-tipping roller 5122 cooperates with the anti-tipping guide rail 5121 and is connected to the motor mounting base 5311. The support guide rail 5123 is located on the top of the traction longitudinal beam 511. The roller box 5124 is connected to the traction crossbeam 532, and the roller assembly is built into the roller box 5124, which cooperates with the support guide rail 5123.

[0147] An anti-tipping guide rail 5121 is positioned below and parallel to the traction rack 5314. An anti-tipping roller 5122 is located below the anti-tipping guide rail 5121. The roller assembly includes a vertical roller 5125 that rolls vertically and a horizontal roller 5126 that rolls horizontally; the vertical roller 5125 engages with the top of the support guide rail 5123; the horizontal roller 5126 engages with both sides of the support guide rail 5123. The rotation center axis of the horizontal roller 5126 is vertically positioned, and the rotation center axis of the vertical roller 5125 is horizontally positioned. Crossbeam connecting seats 5321 are fixedly connected to both ends of the traction beam 532; a roller box 5124 and a motor mounting seat 5311 are connected below the crossbeam connecting seats 5321. A crossbeam anti-collision block 5127 is also provided at the end of the traction beam 511. One end of the crossbeam anti-collision block 5127 is also provided with anti-collision rubber for cushioning. The crossbeam anti-collision block 5127 prevents the crossbeam connecting seat 5321 from detaching from the traction crossbeam 532. A drag chain groove 513 is also provided on one side of the traction longitudinal beam 511.

[0148] The working process of the finished product feeding device includes the following steps:

[0149] Q1. Before welding the longitudinal ribs and stirrups, move the finished product traction mechanism 530 to the rear end of the traction bridge 510, which is also the rear end of the production line, and insert the front ends of all longitudinal ribs into the insertion holes 5332 of the longitudinal rib clamping fixture 533, and fix them by locking parts.

[0150] Q2. The first stirrup skeleton and longitudinal reinforcement are welded in the previous process (i.e. welding process). After the welding of the first stirrup skeleton and longitudinal reinforcement is completed, under the drive of the traction drive motor 5312, the traction beam 532 and the longitudinal reinforcement clamping fixture 533 move forward along the traction longitudinal beam 511 by one stirrup spacing (this spacing is the design spacing between adjacent stirrups of the finished steel skeleton 540 of the box girder), thereby driving the entire steel skeleton semi-finished product to move forward by one stirrup spacing. At this time, the front end of the steel skeleton semi-finished product moves from the previous process to the finished product conveying line.

[0151] Q3. The previous process then performs the welding operation of the second stirrup skeleton and the longitudinal bar. After the welding of the second stirrup skeleton and the longitudinal bar is completed, under the coordinated action of the finished product traction mechanism 530 and the finished product conveying line, the entire steel bar skeleton semi-finished product is moved forward by one stirrup spacing.

[0152] Q4. Repeat step Q3 to weld the next stirrup skeleton and longitudinal bar until all stirrup skeletons and longitudinal bars are welded to form the finished steel skeleton 540. At this time, the finished steel skeleton 540 is located on the finished product conveying line, and the finished product traction mechanism 530 is located at the rightmost end of the traction bridge 510, i.e., the frontmost end.

[0153] Q5. The longitudinal reinforcement clamping fixture 533 releases all longitudinal reinforcement bars, separating the finished product traction mechanism 530 from the finished steel reinforcement cage 540. The finished steel reinforcement cage 540 can then be transported to the target location using the finished product transport line 520.

[0154] The finished product feeding device can automatically feed the longitudinal bars according to the production rhythm of the previous process, thereby completing the production and transportation of the finished steel cage 540. Compared with manual operation, the automated solution greatly improves production efficiency.

[0155] The formwork lifting platform is located at the front end of the finished product traction mechanism 530. The finished steel reinforcement cage 540 can be transported to the concrete pouring mold using the finished product transport line 520, eliminating the need for hoisting the finished steel reinforcement cage 540. However, because the finished product traction mechanism 530 is located at the front end of the finished steel reinforcement cage 540, it obstructs the entry of the finished steel reinforcement cage 540 into the concrete pouring mold. To solve this problem, the formwork lifting platform is positioned at the front end of the finished product traction mechanism 530. The lifting platform raises the finished product traction mechanism 530, allowing the finished steel reinforcement cage 540 to pass underneath it. After the finished steel reinforcement cage 540 has passed, the finished product traction mechanism 530 is lowered to facilitate the production of the next box girder steel reinforcement cage, achieving continuous operation in box girder steel reinforcement cage production and improving production efficiency.

[0156] The mold-feeding lifting platform includes: a lifting support frame 551, a lifting assembly 552, a lifting longitudinal beam 553, and a reinforcing crossbeam 554; the lifting assembly 552 is installed on one side of the lifting support frame 551 and is connected to the lifting longitudinal beam 553 for driving the lifting longitudinal beam 553 to rise and fall; when the lifting longitudinal beam 553 is at the first height, it is longitudinally connected to the traction longitudinal beam 511 for carrying the finished product traction mechanism 530 moved out from the traction longitudinal beam 511.

[0157] The lifting assembly 552 includes: a lifting motor 555, a lifting transmission assembly, and a lifting guide assembly.

[0158] The lifting transmission assembly includes a meshing lifting gear and a lifting rack; the lifting motor 555 is connected to the lifting longitudinal beam 553, and the output shaft of the lifting motor 555 is connected to the lifting gear; the lifting rack is vertically mounted on one side of the lifting support frame 551. There are two sets of lifting guide assemblies, distributed on both sides of the lifting transmission assembly. Each set of lifting guide assemblies includes a lifting guide rail and a lifting slider; the lifting guide rail is vertically mounted on one side of the lifting support frame 551, the lifting slider slides against the lifting guide rail, and the lifting slider is connected to the lifting longitudinal beam 553.

[0159] The lifting support frame 551 is a frame structure with trapezoidal front and rear sides and a rectangular inner side. Two lifting guide rails on each side are fixedly mounted on two inner side columns. There are two lifting support frames 551, distributed on both sides of the finished product transport line 520. The two ends of the reinforcing crossbeam 554 are connected to the lifting longitudinal beams 553 on the two lifting support frames 551, respectively. There can be two reinforcing crossbeams 554, spaced apart along the length of the lifting longitudinal beams 553. The two reinforcing crossbeams 554 and the two lifting longitudinal beams 553 are connected as a whole. The distance between the two lifting longitudinal beams 553 is the same as the distance between the two traction longitudinal beams 511. The two lifting longitudinal beams 553 are respectively connected to the two traction longitudinal beams 511, allowing the finished product traction mechanism 530 on the traction longitudinal beam 511 to smoothly transition to the lifting longitudinal beam 553. Support guide rails are respectively provided on the traction longitudinal beam 511 and the lifting longitudinal beam 553. The traction drive assembly of the finished product traction mechanism 530 cooperates with the support guide rail, enabling the finished product traction mechanism 530 to move along the support guide rail. A sensor 556 is installed on the lifting longitudinal beam 553 to detect the position of the finished product traction mechanism 530 on the lifting longitudinal beam 553 and its lifting height. A limiter is provided at the end of the lifting longitudinal beam 553 away from the traction longitudinal beam 511 to prevent the finished product traction mechanism 530 from detaching from that end. The lifting stroke of the lifting longitudinal beam 553 is more than twice the height from the top of the finished product traction mechanism 530 on the traction bridge 510 to the ground. For example, if the height from the top of the finished product traction mechanism 530 on the traction bridge 510 to the ground is h, then the lifting stroke of the lifting longitudinal beam 553 is at least 2h. This ensures that the lifting longitudinal beam 553 is raised high enough to allow the finished steel reinforcement cage 540 to pass smoothly under the finished product traction mechanism 530.

[0160] The workflow of the mold loading lifting platform includes the following steps:

[0161] M1, Initial state: The lifting longitudinal beam 553 is at the high position of the lifting assembly 552;

[0162] M2. After receiving the lifting signal, the lifting longitudinal beam 553 descends to the same height as the traction longitudinal beam 511 of the traction bridge 510. At this time, the lifting longitudinal beam 553 and the traction longitudinal beam 511 are fully connected.

[0163] M3. The finished product traction mechanism 530, which was originally located on the traction longitudinal beam 511, moves forward to the lifting longitudinal beam 553 of the mold entry lifting platform. The sensor 556 ensures the precise position of the finished product traction mechanism 530 on the lifting longitudinal beam 553.

[0164] M4. After the finished product traction mechanism 530 stops moving and maintains a stable position, the lifting motor 555 starts and lifts the finished product traction mechanism 530 through the lifting component 552. The sensor 556 controls the lifting height and keeps it stable, so as to make enough horizontal passage space for the finished steel skeleton 540 below.

[0165] M5, the finished product conveyor line conveys the finished steel cage 540 forward, so that the finished steel cage 540 passes under the finished product traction mechanism 530 and continues to move forward to the next station to be put into the mold.

[0166] After the finished steel reinforcement cage 540 below M6 has completely passed, the lifting longitudinal beam 553 descends along the lifting assembly 552 to a position at the same height as the traction longitudinal beam 511 of the traction bridge 510. The finished product traction mechanism 530 moves backward onto the traction longitudinal beam 511, completing this stage of the operation.

[0167] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An automated production method for the steel reinforcement cage of precast box girders for highways, characterized in that, Includes the following steps: Step 1: Prefabricate the stirrup skeleton and longitudinal reinforcement for the production of precast box girders for highways; Step 2: Install multiple stirrup skeletons longitudinally onto the stirrup magazine; Step 3: Insert multiple longitudinal ribs into the longitudinal rib guide tube located at the rear end of the stirrup magazine. Use the longitudinal rib guide tube to support and guide the longitudinal ribs to move longitudinally, so that the longitudinal ribs pass through the stirrup skeleton and extend to the front end of the stirrup magazine, and connect with the finished product feeding device. Step 4: Use the stirrup feeding mechanism to push the stirrup skeleton in the stirrup magazine to the set position; Step 5: Use the stirrup-removing mechanism to remove the stirrup skeleton located at the front end of the stirrup magazine; Step 6: Use the steel bar tensioning module located at the front end of the stirrup magazine to pick up the stirrup skeleton on the stirrup pulling mechanism and transfer it to the welding position, tension the longitudinal bar so that the longitudinal bar is close to the stirrup skeleton at the welding position; Step 7: Using the welding module located at the front end of the rebar tensioning module, weld the stirrup skeleton to the longitudinal reinforcement at the welding position to complete the welding of one stirrup skeleton to multiple longitudinal reinforcements; Step 8: Using the finished product feeding device located at the front end of the welding module, pull the longitudinal bar and the stirrup skeleton welded on the longitudinal bar forward by one stirrup spacing; return to step 4 until all the stirrup skeletons on the stirrup magazine are welded, and the production of the finished steel reinforcement skeleton is completed. The longitudinal reinforcement guide tube includes multiple hollow bottom slab longitudinal reinforcement guide tubes and side slab longitudinal reinforcement guide tubes arranged in parallel; each stirrup skeleton includes bottom slab stirrups and side slab stirrups welded to both ends of the bottom slab stirrups; the bottom slab longitudinal reinforcement guide tubes are inserted with longitudinal reinforcements for welding to the bottom slab stirrups; the side slab longitudinal reinforcement guide tubes are inserted with longitudinal reinforcements for welding to the side slab stirrups; the rear end of the longitudinal reinforcement guide tube is fixed to the guide beam, and the front end of the longitudinal reinforcement guide tube is a cantilever end, pointing towards the stirrup magazine.

2. The automated production method for the steel reinforcement cage of precast box girders for highways according to claim 1, characterized in that, The prefabrication step of the stirrup skeleton in step 1 includes: Based on the dimensions of the precast box girder for highway, multiple bottom slab stirrups and multiple side slab stirrups are precast. A side plate stirrup is welded to each end of the bottom plate stirrup to form an integrated U-shaped stirrup skeleton.

3. The automated production method for the steel reinforcement cage of precast box girders for highways according to claim 1, characterized in that, Step 3 further includes: supporting the longitudinal reinforcement with a roller support beam assembly disposed between the longitudinal reinforcement guide tube and the stirrup magazine.

4. The automated production method for the steel reinforcement cage of precast box girders for highways according to claim 1, characterized in that, The rebar tensioning module includes a stirrup positioning mechanism and a rebar tensioning mechanism; step 6 includes: The stirrup positioning mechanism is used to clamp the stirrup skeleton on the stirrup pulling mechanism and transfer the stirrup skeleton to the welding position; The steel bar tensioning mechanism is used to tension the plurality of longitudinal bars at the welding position, so that each longitudinal bar is in close contact with the stirrup skeleton at the welding position.

5. The automated production method for the steel reinforcement cage of precast box girders for highways according to claim 1, characterized in that, The finished product feeding device includes a finished product transport line arranged longitudinally and a finished product traction mechanism arranged above the finished product transport line; step 8 includes: The longitudinal reinforcement is moved forward by the finished product traction mechanism. The finished steel reinforcement cage or semi-finished steel reinforcement cage is transported along the finished product transport line and moves forward with the longitudinal reinforcement.

6. The automated production method for the steel reinforcement cage of precast box girders for highways according to claim 5, characterized in that, The method further includes: Step 9: Release the traction of the longitudinal reinforcement by the finished product traction mechanism; lift the finished product traction mechanism using the mold entry lifting platform set at the front end of the finished product feeding device; drive the finished steel skeleton carried on the finished product transport line to pass under the finished product traction mechanism and move forward to the next station for mold entry.

7. An automated production equipment for the steel reinforcement cage of precast box girders for highways, characterized in that, include: Raw material cable tray module, stirrup tooling module, rebar tensioning module, welding module, and finished cable tray module; The stirrup tooling module includes a stirrup magazine, a stirrup feeding mechanism, and a stirrup pulling mechanism; the stirrup magazine is used to carry multiple stirrup skeletons; the stirrup feeding mechanism is used to push the stirrup skeletons in the stirrup magazine to a set position; and the stirrup pulling mechanism is used to remove the stirrup skeletons located at the foremost end of the stirrup magazine one by one. The raw material bridge module includes a longitudinal reinforcement guide tube, which is located at the rear end of the stirrup magazine and is used to support and guide the longitudinal reinforcement to move longitudinally so that the longitudinal reinforcement passes through the stirrup skeleton. The rebar tensioning module is located at the front end of the stirrup magazine and is used to pick up the stirrup skeleton on the stirrup pulling mechanism and transfer it to the welding position, and to tension the longitudinal bar so that the longitudinal bar is close to the stirrup skeleton at the welding position. The welding module is located at the front end of the rebar tensioning module and is used to weld the stirrup skeleton at the welding position to the longitudinal reinforcement. The finished cable tray module includes a finished product feeding device, which is located at the front end of the welding module and is used to pull the longitudinal reinforcement and the stirrup skeleton welded on the longitudinal reinforcement to move. The longitudinal reinforcement guide tube includes multiple hollow bottom slab longitudinal reinforcement guide tubes and side slab longitudinal reinforcement guide tubes arranged in parallel; each stirrup skeleton includes bottom slab stirrups and side slab stirrups welded to both ends of the bottom slab stirrups; the bottom slab longitudinal reinforcement guide tubes are inserted with longitudinal reinforcements for welding to the bottom slab stirrups; the side slab longitudinal reinforcement guide tubes are inserted with longitudinal reinforcements for welding to the side slab stirrups; the rear end of the longitudinal reinforcement guide tube is fixed to the guide beam, and the front end of the longitudinal reinforcement guide tube is a cantilever end, pointing towards the stirrup magazine.

8. The automated production equipment for the steel reinforcement cage of precast box girders for highways according to claim 7, characterized in that, The rebar tensioning module includes a gantry beam, a gantry beam guide rail, and a stirrup positioning mechanism; the gantry beam guide rail is arranged longitudinally, and the gantry beam moves along the gantry beam guide rail; the stirrup positioning mechanism is disposed on the gantry beam; the stirrup positioning mechanism includes stirrup clamps and stirrup supports, the stirrup clamps are used to clamp the sides of the stirrup skeleton; the stirrup supports are used to support the bottom of the stirrup skeleton.

9. An automated production equipment for the steel reinforcement cage of precast box girders for highways according to claim 8, characterized in that, The rebar tensioning module further includes a rebar tensioning mechanism; the rebar tensioning mechanism includes an outer rebar tensioning mechanism and an inner rebar tensioning mechanism. The outer steel bar tensioning mechanism is used to tension the longitudinal bars welded to the outer side of the stirrup skeleton; The inner steel bar tensioning mechanism is used to tension the longitudinal bars welded to the inner side of the stirrup skeleton.

10. An automated production equipment for the steel reinforcement cage of precast box girders for highways according to claim 7, characterized in that, The finished product cable tray module also includes a mold-feeding lifting platform; the mold-feeding lifting platform is located at the front end of the finished product feeding device. The finished product feeding device includes: a traction bridge, a finished product transport line, and a finished product traction mechanism; the finished product transport line is used to carry the finished steel reinforcement cage; the traction bridge is provided on both sides of the finished product transport line; the traction bridge includes traction longitudinal beams; the finished product traction mechanism is located above the finished product transport line, and the two ends of the finished product traction mechanism are relatively movable and cooperate with the traction longitudinal beams on both sides of the finished product transport line. The mold-feeding lifting platform includes: a lifting support frame, a lifting assembly, and a lifting longitudinal beam; the lifting assembly is installed on one side of the lifting support frame and is connected to the lifting longitudinal beam for driving the lifting longitudinal beam to rise and fall; when the lifting longitudinal beam is at a first height, it is longitudinally connected to the traction longitudinal beam for carrying the finished product traction mechanism that is moved out from the traction longitudinal beam.

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