Highway box girder bottom plate processing production line and production method

Abstract

The present application belongs to the technical field of box girder reinforcement cage production, and discloses a highway box girder bottom plate processing production line and a production method. The highway box girder bottom plate processing production line comprises a longitudinal reinforcement storage and conveying area, a stirrup storage and conveying area, a welding area and a mesh discharging area. The welding area is provided with a welding mechanism and a longitudinal reinforcement positioning mechanism. The longitudinal reinforcement positioning mechanism comprises a longitudinal reinforcement supporting movable frame and a plurality of longitudinal reinforcement supporting rollers. The longitudinal reinforcement supporting movable frame is arranged in the welding mechanism in a position adjustable along the vertical direction. A plurality of supporting roller shafts are arranged on the longitudinal reinforcement supporting movable frame along a second horizontal direction for rotatably mounting a plurality of longitudinal reinforcement supporting rollers. When the first rotation angle is reached, the adjacent two longitudinal reinforcement supporting rollers have a gap therebetween. When the second rotation angle is reached, the adjacent two longitudinal reinforcement supporting rollers have a positioning groove therebetween. The present application realizes rapid clamping and positioning of the bottom plate longitudinal reinforcement, facilitates positioning and welding of the bottom plate stirrup, and solves the problems of complicated operation, waste of manpower and material resources and low production efficiency in the prior art.

Description

Technical Field

[0001] This invention relates to the field of box girder reinforcement cage production technology, and in particular to a production line and method for processing the bottom plate of a highway box girder. Background Technology

[0002] A box girder reinforcement cage is a precast building material made of welded steel bars, typically used in column-shaped or strip-shaped concrete members. The box girder reinforcement cage consists of multiple longitudinally arranged, frame-shaped reinforcing bars, each with several stirrups. These stirrups are sequentially spaced and welded along the length of the longitudinal bars to form the box girder reinforcement cage. During welding, the stirrups and longitudinal bars need to be cross-welded to form a three-dimensional mesh. In existing technologies, the welding of longitudinal bars requires manual placement and welding of each bar individually to its corresponding stirrup. This process is complex, consumes significant manpower and resources, has low production efficiency, and makes accurate alignment of the longitudinal bars and stirrups difficult, resulting in poor welding precision. Summary of the Invention

[0003] The purpose of this invention is to provide a production line and method for processing the bottom plate of highway box girders, so as to solve the problems of complex operation, large consumption of manpower and material resources, and low production efficiency in the production process of highway box girder bottom plates.

[0004] To achieve this objective, the present invention adopts the following technical solution: A production line for processing the bottom slab of a highway box girder, wherein the bottom slab of the highway box girder includes multiple longitudinal reinforcement bars and multiple stirrups; the production line for processing the bottom slab of the highway box girder includes a longitudinal reinforcement storage and conveying area, a stirrup storage and conveying area, a welding area and a mesh discharge area arranged sequentially along a first horizontal direction, wherein the stirrup storage and conveying area is arranged vertically above the longitudinal reinforcement storage and conveying area; the welding area is provided with a welding mechanism and a longitudinal reinforcement positioning mechanism, wherein multiple bottom slab longitudinal reinforcement bars are positioned by the longitudinal reinforcement positioning mechanism, the bottom slab stirrups are sequentially conveyed to the welding area and multiple bottom slab longitudinal reinforcement bars are fitted together for positioning, the welding mechanism sequentially welds the positioned bottom slab stirrups and multiple bottom slab longitudinal reinforcement bars to form a bottom slab mesh, and the bottom slab mesh is conveyed stepwise to the mesh discharge area; The longitudinal rib positioning mechanism includes a longitudinal rib support frame and multiple longitudinal rib rollers. The longitudinal rib support frame is adjustable in position along the vertical direction and is mounted on the welding mechanism. Multiple roller shafts are spaced apart along the second horizontal direction on the longitudinal rib support frame. The multiple longitudinal rib rollers are rotatably mounted on the longitudinal rib support frame via the multiple roller shafts. The multiple longitudinal rib rollers have a first rotation angle and a second rotation angle. At the first rotation angle, there is a gap between two adjacent longitudinal rib rollers to position the multiple base plate longitudinal ribs. At the second rotation angle, there is a positioning groove between two adjacent longitudinal rib rollers, and the base plate longitudinal ribs can be clamped in the positioning groove and positioned to a designated position.

[0005] In some embodiments, the longitudinal rib positioning mechanism further includes: A first lifting drive component is disposed on the welding mechanism, and the longitudinal rib support is movably mounted on the output end of the first lifting drive component. The first lifting drive component is configured to drive the longitudinal rib support to reciprocate along the vertical direction. Multiple longitudinal rib support plate connecting rods, the first ends of the multiple longitudinal rib support plate connecting rods are respectively mounted on multiple roller shafts and can rotate coaxially with the multiple roller shafts; A linkage plate, wherein the linkage plate is rotatably connected to the second end of the connecting rods of the plurality of longitudinal rib support plates; A steering drive is provided on the movable frame of the longitudinal rib support. The output end of the steering drive is arranged along the second horizontal direction and connected to the linkage plate. When the steering drive drives the linkage plate to move, the linkage plate drives multiple longitudinal rib support plate connecting rods and multiple roller shafts to rotate synchronously. The multiple roller shafts drive multiple longitudinal rib rollers to rotate synchronously.

[0006] In some embodiments, the longitudinal rib roller is provided with two half-grooves evenly spaced circumferentially. At the first rotation angle, the two half-grooves on the longitudinal rib roller are arranged along the first horizontal direction. At the second rotation angle, the two half-grooves on the longitudinal rib roller are arranged along the second horizontal direction. The two half-grooves on two adjacent longitudinal rib rollers are combined to form the positioning groove.

[0007] In some embodiments, two longitudinal rib positioning mechanisms are provided, and the welding mechanism includes an upper frame and a lower frame. The two longitudinal rib positioning mechanisms are respectively arranged on the upper frame and the lower frame along the vertical direction. The multiple longitudinal rib support rollers of the two longitudinal rib positioning mechanisms are arranged opposite to each other to position the two rows of bottom plate longitudinal ribs respectively.

[0008] In some embodiments, in the longitudinal rib positioning mechanism provided on the upper frame, the first lifting drive component is provided on the longitudinal rib bracket plate, the longitudinal rib bracket plate is fixed on the upper frame by the upper positioning and fixing frame, and the longitudinal rib movable frame can reciprocate in contact with the longitudinal rib bracket plate. In the longitudinal rib positioning mechanism located on the lower frame, the first lifting drive component is mounted on the lower positioning beam, the lower positioning beam is mounted on the lower frame, and the longitudinal rib support movable frame is slidably mounted on the lower positioning beam via a sliding assembly.

[0009] In some embodiments, the welding mechanism further includes: The main unit column has its bottom end fixedly connected to the lower frame, and the upper frame is mounted on the main unit column and located above the lower frame; A transformer assembly, comprising a plurality of transformers; The welding electrode moving assembly includes an upper welding electrode moving assembly disposed on the upper frame and a lower welding electrode moving assembly disposed on the lower frame. The upper welding electrode moving assembly and the lower welding electrode moving assembly are respectively disposed corresponding to two rows of bottom plate longitudinal ribs and are capable of welding the bottom plate stirrups and multiple welding points of multiple bottom plate longitudinal ribs. Both the upper welding electrode moving assembly and the lower welding electrode moving assembly include: The machine base is provided in two locations, and the two machine bases are spaced apart along the second horizontal direction. A frame beam, with two machine bases slidably connected to each end of the frame beam, the sliding direction being along the vertical direction; A second lifting drive component is disposed on the base, and the output end of the second lifting drive component is connected to the frame beam to drive the frame beam to slide up and down along the vertical direction; A primary moving assembly, wherein the primary moving assembly is disposed on the frame beam; A secondary movement component, wherein the secondary movement component is disposed on the primary movement component; A welding electrode assembly, wherein multiple welding electrode assemblies are disposed on the secondary moving assembly, the primary moving assembly and the secondary moving assembly are capable of driving the welding electrode assembly to move along the second horizontal direction to sequentially weld multiple welding points in the same row, and the welding electrode assembly is electrically connected to the transformer assembly.

[0010] In some embodiments, the primary movement component includes: A primary slide rail is provided on the frame beam, and a primary slider is slidably mounted on the primary slide rail. A primary slide plate, wherein the primary slide plate is fixedly connected to the primary slider; A primary drive unit is mounted on the frame beam, and the output end of the primary drive unit is connected to the primary slide plate to drive the primary slide plate to slide. The secondary movement component includes: A secondary slide rail is provided on the primary slide rail, and a secondary slider is slidably mounted on the secondary slide rail; A secondary slide plate is fixedly connected to the secondary slider, and the welding electrode assembly is disposed on the secondary slide plate; A secondary drive unit is disposed on the primary slide plate, and the output end of the secondary drive unit is connected to the secondary slide plate to drive the secondary slide plate to slide.

[0011] In some embodiments, the welding electrode assembly includes: A welding cylinder, wherein the cylinder body of the welding cylinder is fixed on the secondary slide plate by a cylinder frame; A fixed electrode holder, one end of which is mounted on the cylinder body of the welding cylinder, and the other end of which is provided with two fixed electrode heads; A movable electrode holder, one end of which is mounted on the output rod of the welding cylinder, and the other end of which is provided with a movable electrode head; The fixed electrode head and the movable electrode head are respectively connected to the positive and negative terminals of the transformer via flexible wires.

[0012] Using the highway box girder bottom plate processing production line provided by this invention, this invention also provides a highway box girder bottom plate processing and production method, comprising the following steps: S1, transports multiple bottom plate longitudinal bars from the longitudinal bar storage and conveying area to the welding area; S2, transport a bottom plate stirrup from the stirrup storage and conveying area to the welding area and position it; S3, the longitudinal reinforcement positioning mechanism is activated and drives multiple longitudinal reinforcements of the bottom plate and the stirrups of the bottom plate to be positioned; S4, the welding mechanism starts and welds the bottom plate stirrups and multiple bottom plate longitudinal bars; after welding is completed, the welding mechanism is reset; S5, a mesh pulling mechanism is set in the mesh discharge area to clamp the bottom plate longitudinal ribs and drive the bottom plate mesh to move along the first horizontal direction. The moving distance is the distance between two bottom plate stirrups. S6, execute steps S2-S5 until all the bottom plate stirrups on the bottom plate mesh are welded.

[0013] In some embodiments, in step S3, the two longitudinal rib positioning mechanisms located on the upper frame and the lower frame are simultaneously activated synchronously, specifically: S31, the first lifting drive unit drives the longitudinal rib support movable frame to move toward the bottom plate longitudinal rib, so that the bottom plate longitudinal rib is located in the gap between two adjacent longitudinal rib support rollers; S32, the steering drive unit drives the linkage plate to move and drives multiple longitudinal rib support plate connecting rods to rotate synchronously, so that multiple longitudinal rib support rollers rotate synchronously and clamp multiple bottom plate longitudinal ribs; S33, Adjust the position of the bottom plate stirrups and the multiple bottom plate longitudinal bars so that the upper and lower rows of bottom plate longitudinal bars are respectively close to the inner side of the bottom plate stirrups.

[0014] In some embodiments, step S4 includes the following specific steps: S41, the second lifting drive component drives the frame beam to move toward the longitudinal reinforcement of the bottom plate, so that the fixed electrode head and the movable electrode head in the welding electrode assembly are located on both sides of the bottom plate stirrup and the bottom plate longitudinal reinforcement respectively in the vertical direction; S42, the secondary moving component drives the welding electrode assembly to move along the second horizontal direction, so that the fixed electrode head and the movable electrode head are aligned with the first group of longitudinal ribs of the base plate in the vertical direction; S43, the welding cylinder drives the movable electrode head in the welding electrode assembly to move toward the base plate stirrup and presses the base plate stirrup and the base plate longitudinal rib against the fixed electrode head; S44, the transformer assembly is started and the weld points between the bottom plate stirrups and the first group of bottom plate longitudinal ribs are welded; S45, the welding cylinder, the secondary drive component and the second lifting drive component all move in the opposite direction to their initial positions; S46, the primary moving component drives the welding electrode assembly to move along the second horizontal direction, so that the fixed electrode head and the movable electrode head are aligned with the second group of the bottom plate longitudinal ribs along the vertical direction; S47, Perform steps S41-S44 to weld the weld points between the bottom plate stirrups and the second group of bottom plate longitudinal reinforcements.

[0015] The beneficial effects of this invention are: The highway box girder bottom plate processing production line provided by this invention makes full use of space by arranging longitudinal reinforcement storage and conveying areas and stirrup storage and conveying areas vertically upstream of the welding zone, which helps to shorten the conveying distance and improve conveying efficiency. The bottom plate mesh formed by welding in the welding zone is continuously conveyed to the mesh discharge area, realizing continuous step-by-step forming of the box girder bottom plate, which helps to improve production efficiency. A welding mechanism and a longitudinal reinforcement positioning mechanism are set in the welding zone. The longitudinal reinforcement positioning mechanism realizes the conveying and clamping positioning of the bottom plate longitudinal reinforcement by switching between a first rotation angle and a second rotation angle through multiple longitudinal reinforcement rollers, which facilitates the positioning and welding with the bottom plate stirrups. This solves the problems of complex operation, waste of manpower and material resources and low production efficiency in the prior art. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall layout structure of the highway box girder bottom plate processing production line provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the longitudinal reinforcement positioning mechanism installed on the upper frame in the highway box girder bottom plate processing production line provided in this embodiment of the invention; Figure 3 This is a schematic diagram of the longitudinal reinforcement positioning mechanism located on the lower frame in the highway box girder bottom plate processing production line provided in this embodiment of the invention; Figure 4This is a partial structural schematic diagram of the welding mechanism in the highway box girder bottom plate processing production line provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the welding electrode moving assembly in the highway box girder bottom plate processing production line provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the primary moving component and the secondary moving component in the highway box girder bottom plate processing production line provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the welding electrode assembly in the highway box girder bottom plate processing production line provided in an embodiment of the present invention; Figure 8 This is a schematic diagram showing the position of the longitudinal reinforcement of the bottom plate being transported to the welding area in the highway box girder bottom plate processing production line provided in this embodiment of the invention; Figure 9 This is a schematic diagram showing the positioning and clamping state of the longitudinal reinforcement positioning mechanism in the highway box girder bottom plate processing production line provided in this embodiment of the invention. Figure 10 This is a schematic diagram of the welding state of the welding mechanism in the highway box girder bottom plate processing production line provided in an embodiment of the present invention.

[0017] In the picture: A. Longitudinal reinforcement storage and conveying area; B. Stirrup storage and conveying area; C. Welding area; C1. Stirrup clamping and feeding mechanism; C2. Stirrup welding clamping mechanism; D. Mesh discharge area; D1. Mesh pulling mechanism; D2. Mesh pulling clamp; 100. Longitudinal reinforcement of the bottom slab; 200. Stirrups of the bottom slab; 300. Welding mechanism; 301. Upper frame; 302. Lower frame; 3021. Lower connecting beam; 303. Main column; 304. Transformer assembly; 3041. Transformer; 3042. Transformer electrode; 3043. Transformer frame; 3044. Connecting corner piece; 305. Base; 306. Frame beam; 3061. Bearing; 307. Second lifting drive component; 308. Primary movement assembly; 3081. Primary slide rail; 3082. Primary slider; 3083. Primary slide plate; 3084. Primary drive component; 309. Secondary moving component; 3091. Secondary slide rail; 3092. Secondary slider; 3093. Secondary sliding plate; 3094. Secondary driving component; 310. Welding electrode assembly; 311. Welding cylinder; 3111. Fixed bracket; 3112. Rod plate; 312. Cylinder frame; 313. Fixed electrode seat; 3131. Groove; 314. Fixed electrode head; 315. Movable electrode seat; 316. Movable electrode head; 317. Insulating plate; 318. Copper plate; 319. Lead wire plate; 320. Flexible lead wire; 400. Longitudinal rib positioning mechanism; 401. Longitudinal rib support movable frame; 402. Longitudinal rib support roller; 4021. Gap; 4022. Positioning groove; 4023. Half groove; 403. Support roller shaft; 4031. Copper sleeve; 404. First lifting drive component; 405. Longitudinal rib support plate connecting rod; 406. Linkage plate; 407. Steering drive component; 408. Longitudinal rib support plate; 409. Upper positioning fixed frame; 410. Lower positioning beam; 411. Guide slide rail; 412. Guide slider. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0019] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0022] Combination Figures 1-10This invention provides a production line and method for processing the bottom plate of a highway box girder. The bottom plate of the highway box girder includes multiple bottom plate longitudinal bars 100 and multiple bottom plate stirrups 200 arranged and welded along the longitudinal axis of the bottom plate longitudinal bars 100. This invention is used to position and weld the multiple bottom plate longitudinal bars 100 and the multiple bottom plate stirrups 200 to obtain a bottom plate mesh, i.e., the bottom plate of the highway box girder.

[0023] Specifically, the highway box girder bottom plate processing production line includes a longitudinal reinforcement storage and conveying area A, a stirrup storage and conveying area B, a welding area C, and a mesh discharge area D arranged sequentially along the first horizontal direction. The stirrup storage and conveying area B is located vertically above the longitudinal reinforcement storage and conveying area A. Due to the large longitudinal length of the bottom plate longitudinal reinforcement 100, the stirrup storage and conveying area B is located above the longitudinal reinforcement storage and conveying area A. The welding area C is equipped with a welding mechanism 300 and a longitudinal reinforcement positioning mechanism 400. Multiple bottom plate longitudinal reinforcements 100 are respectively positioned by the longitudinal reinforcement positioning mechanism 400. The bottom plate stirrups 200 are sequentially conveyed to the welding area C and multiple bottom plate longitudinal reinforcements 100 are fitted for positioning. The welding mechanism 300 sequentially welds the positioned bottom plate stirrups 200 and multiple bottom plate longitudinal reinforcements 100 to form a bottom plate mesh. The bottom plate mesh is conveyed stepwise to the mesh discharge area D, thereby realizing the welding of multiple bottom plate stirrups 200 in sequence.

[0024] In this embodiment, by arranging the longitudinal reinforcement storage and conveying area A and the stirrup storage and conveying area B vertically upstream of the welding area C, the space is fully utilized for layout, which helps to shorten the conveying distance and improve the conveying efficiency. Among them, the longitudinal reinforcement storage and conveying area A stores multiple bottom plate longitudinal reinforcements 100 and can convey the bottom plate longitudinal reinforcements 100 along the first horizontal direction (X direction, which is also the longitudinal direction of the bottom plate longitudinal reinforcements 100) by multiple conveying rollers. The stirrup storage and conveying area B, located above the conveying rollers, stores multiple base plate stirrups 200 and sequentially conveys them to a first position along a first horizontal direction. The welding area C is equipped with a stirrup clamping and feeding mechanism C1 and a stirrup welding clamping mechanism C2. The stirrup clamping and feeding mechanism C1 clamps the base plate stirrup 200 located at the first position and conveys it to a second position. The stirrup welding clamping mechanism C2 clamps and feeds the base plate stirrup 200 located at the second position to the welding position, aligning the stirrup 200 with the base plate longitudinal reinforcement 100 for welding. The stirrup clamping and feeding mechanism C1 can be flexibly controlled and fed using a robotic arm. The stirrup welding clamping mechanism C2 can employ a conventional clamping and positioning structure.

[0025] The longitudinal rib positioning mechanism 400 includes a longitudinal rib support frame 401 and multiple longitudinal rib rollers 402. The longitudinal rib support frame 401 is vertically adjustable and mounted on the welding mechanism 300. Multiple roller shafts 403 are spaced apart on the longitudinal rib support frame 401 along the second horizontal direction. The multiple longitudinal rib rollers 402 are rotatably mounted on the longitudinal rib support frame 401 via the multiple roller shafts 403. The multiple longitudinal rib rollers 402 have a first rotation angle and a second rotation angle. At the first rotation angle, there is a gap 4021 between two adjacent longitudinal rib rollers 402 to position multiple bottom plate longitudinal ribs 100. At the second rotation angle, there is a positioning groove 4022 between two adjacent longitudinal rib rollers 402, and the bottom plate longitudinal ribs 100 can be clamped in the positioning groove 4022 and positioned in a designated position.

[0026] The highway box girder bottom plate processing production line provided by this invention continuously steps and conveys the bottom plate mesh, which is welded in welding zone C, to mesh discharge zone D, realizing continuous step-by-step forming of the box girder bottom plate and improving production efficiency. A welding mechanism 300 and a longitudinal rib positioning mechanism 400 are set in welding zone C. The longitudinal rib positioning mechanism 400 achieves rapid clamping and positioning of the bottom plate longitudinal ribs 100 by switching between a first rotation angle and a second rotation angle using multiple longitudinal rib support rollers 402. This facilitates positioning and welding with the bottom plate stirrups 200, solving the problems of complex operation, waste of manpower and resources, and low production efficiency in existing technologies. The longitudinal rib support movable frame 401 is adjustable in the vertical direction, suitable for separately clamping and positioning two rows of bottom plate longitudinal ribs 100 and adjusting them to the required height. By setting the longitudinal rib support movable frame 401, simultaneous clamping and positioning of multiple bottom plate longitudinal ribs 100 in the same row can be achieved, improving the positioning efficiency of the bottom plate longitudinal ribs 100.

[0027] In some embodiments, such as Figure 2 and Figure 3The longitudinal rib positioning mechanism 400 also includes a first lifting drive 404, multiple longitudinal rib support plate connecting rods 405, a linkage plate 406, and a steering drive 407. Both the first lifting drive 404 and the steering drive 407 can be implemented using cylinders. Specifically, the first lifting drive 404 is mounted on the welding mechanism 300, and the longitudinal rib support movable frame 401 is located at the output end of the first lifting drive 404. The first lifting drive 404 is configured to drive the longitudinal rib support movable frame 401 to reciprocate vertically, thereby driving multiple longitudinal rib support rollers 402 to move towards or away from the bottom plate longitudinal rib 100 for clamping and positioning, satisfying the conveying and clamping positioning requirements of the bottom plate longitudinal rib 100. Preferably, two first lifting drive 404s are provided, with the output ends of the two first lifting drive 404s respectively connected to both ends of the longitudinal rib support movable frame 401 to achieve stable driving of the longitudinal rib support movable frame 401, ensuring balanced force and smooth movement of the longitudinal rib support movable frame 401. The first ends of multiple longitudinal rib support plate connecting rods 405 are respectively mounted on multiple idler roller shafts 403 and can rotate coaxially with the multiple idler roller shafts 403; the second ends of multiple longitudinal rib support plate connecting rods 405 are rotatably connected to the linkage plate 406; the steering drive component 407 is provided on the longitudinal rib support movable frame 401, the output end of the steering drive component 407 is set along the second horizontal direction and connected to the linkage plate 406, when the steering drive component 407 drives the linkage plate 406 to move, the linkage plate 406 drives multiple longitudinal rib support plate connecting rods 405 and multiple idler roller shafts 403 to rotate synchronously, and the multiple idler roller shafts 403 drive multiple longitudinal rib idler rollers 402 to rotate synchronously.

[0028] Combination Figure 2 and Figure 3In the illustrated embodiment, the number of longitudinal rib support plate connecting rods 405, the number of roller shafts 403, and the number of longitudinal rib rollers 402 are equal. The longitudinal rib support movable frame 401 has multiple mounting holes, with copper sleeves 4031 installed within each hole. The roller shafts 403 pass through the corresponding copper sleeves 4031 to achieve rotatable mounting on the longitudinal rib support movable frame 401. The roller shafts 403 are fixedly connected to the longitudinal rib rollers 402. The first end of the longitudinal rib support plate connecting rod 405 is fixedly connected to the roller shaft 403, and the second end of the longitudinal rib support plate connecting rod 405 is connected to the linkage plate 406. When the steering drive component 407 drives the linkage plate 406 to move along the second horizontal direction, the linkage plate 406 drives the rotation of the multiple longitudinal rib support plate connecting rods 405, thereby driving the rotation of the multiple longitudinal rib rollers 402, realizing the rotation switching of the multiple longitudinal rib rollers 402 between a first rotation angle and a second rotation angle. The longitudinal rib idler roller 402 and the idler roller shaft 403 can be connected by a key to achieve coaxial rotational installation. The idler roller shaft 403 and the longitudinal rib support plate connecting rod 405 are fixedly connected by a pin or screw, so that the longitudinal rib support plate connecting rod 405 rotatably installs the longitudinal rib idler roller 402 on the longitudinal rib support movable frame 401 through the idler roller shaft 403. The second end of the longitudinal rib support plate connecting rod 405 is rotatably connected to the linkage plate 406 by a pin. When the linkage plate 406 moves, it simultaneously drives the rotation of multiple longitudinal rib support plate connecting rods 405.

[0029] In the initial state, the first lifting drive 404 drives multiple longitudinal rib rollers 402 away from the bottom plate longitudinal rib 100 to facilitate the feeding and conveying of the bottom plate longitudinal rib 100 along the first horizontal direction. Simultaneously, the steering drive 407 drives the linkage plate 406 to move until the multiple longitudinal rib rollers 402 are at a first rotation angle. During positioning, the first lifting drive 404 drives the multiple longitudinal rib rollers 402 towards the bottom plate longitudinal rib 100, so that the multiple bottom plate longitudinal ribs 100 are respectively located in the gaps 4021 between the multiple longitudinal rib rollers 402. Then, the steering drive 407 drives the linkage plate 406 to move until the multiple longitudinal rib rollers 402 are at a second rotation angle, and the multiple bottom plate longitudinal ribs 100 are respectively clamped in multiple positioning slots 4022. As needed, the height of the bottom plate longitudinal ribs 100 can be appropriately adjusted by the first lifting drive 404 to match the bottom plate stirrups 200 for positioning, facilitating welding.

[0030] In some embodiments, the longitudinal rib roller 402 is provided with two half-grooves 4023 evenly spaced around its circumference. At a first rotation angle, the two half-grooves 4023 on the longitudinal rib roller 402 are arranged along a first horizontal direction. At a second rotation angle, the two half-grooves 4023 on the longitudinal rib roller 402 are arranged along a second horizontal direction. The two half-grooves 4023 on two adjacent longitudinal rib rollers 402 are combined to form a positioning groove 4022.

[0031] For example Figure 2 and Figure 3 , combined Figure 8 and Figure 9 As shown, the cross-section of the longitudinal rib roller 402 is elliptical. The longitudinal rib roller 402 has half-grooves 4023 at both ends of the long axis of the outer side wall around the roller shaft 403. The half-grooves 4023 are concave arc grooves. When the longitudinal rib roller 402 rotates to the second rotation angle, the half-grooves 4023 of two adjacent longitudinal rib rollers 402 face each other, and the two half-grooves 4023 enclose to form a positioning groove 4022, which can clamp the bottom plate longitudinal rib 100 in the positioning groove 4022. Both ends of the short axis of the axial outer wall of the longitudinal rib roller 402 are flat. When the longitudinal rib roller 402 rotates to the first rotation angle, the two ends of two adjacent longitudinal rib rollers 402 are opposite each other and have a gap 4021. When the first lifting drive 404 drives the longitudinal rib support frame 401 to move up and down, the multiple bottom plate longitudinal ribs 100 correspond one-to-one with the multiple gaps 4021, realizing the interval positioning of the multiple bottom plate longitudinal ribs 100. This facilitates the multiple bottom plate longitudinal ribs 100 to be clamped and positioned in the multiple positioning grooves 4022 during the process of the steering drive 407 driving the multiple longitudinal rib rollers 402 to rotate from the first rotation angle to the second rotation angle.

[0032] In some embodiments, two longitudinal rib positioning mechanisms 400 are provided, and the welding mechanism 300 includes an upper frame 301 and a lower frame 302. The two longitudinal rib positioning mechanisms 400 are respectively arranged on the upper frame 301 and the lower frame 302 in the vertical direction. The multiple longitudinal rib support rollers 402 of the two longitudinal rib positioning mechanisms 400 are arranged opposite to each other to position the two rows of bottom plate longitudinal ribs 100 respectively.

[0033] like Figure 2 and Figure 3 As shown, the longitudinal rib positioning mechanism 400 set on the upper frame 301 is called the upper longitudinal rib positioning mechanism, and the longitudinal rib positioning mechanism 400 set on the lower frame 302 is called the lower longitudinal rib positioning mechanism. The upper longitudinal rib positioning mechanism and the lower longitudinal rib positioning mechanism have the same position and structure. The longitudinal rib rollers 402 are set opposite to each other and correspond to the positioning of the upper and lower rows of bottom plate longitudinal ribs 100 of the bottom plate mesh, respectively, and the initial position is preset.

[0034] like Figure 2In the upper longitudinal rib positioning mechanism, the first lifting drive component 404 is set on the longitudinal rib bracket plate 408. The longitudinal rib bracket plate 408 is fixed on the upper frame 301 by the upper positioning and fixing frame 409. The longitudinal rib support movable frame 401 can move back and forth in contact with the longitudinal rib bracket plate 408 to ensure the lifting stability of the longitudinal rib support movable frame 401. Two upper positioning and fixing frames 409 are spaced apart along the Y direction on the upper frame 301. The two ends of the longitudinal rib support plate 408 are respectively fixedly connected to the two upper positioning and fixing frames 409. Two first lifting drive components 404 are spaced apart on the longitudinal rib support plate 408 and their output ends are set downward to connect to the longitudinal rib support movable frame 401. In the initial state, the output end of the first lifting drive component 404 retracts, driving the longitudinal rib support movable frame 401 to rise and move away from the bottom plate longitudinal rib 100, so as to facilitate the initial material loading of the bottom plate longitudinal rib 100. When positioning welding is required, the output end of the first lifting drive component 404 extends and drives the longitudinal rib support movable frame 401 to move towards the bottom plate longitudinal rib 100 until the bottom plate longitudinal rib 100 is located in the gap between two adjacent longitudinal rib support rollers 402, so as to achieve preliminary positioning and alignment.

[0035] like Figure 3 In the lower longitudinal rib positioning mechanism, a first lifting drive 404 is mounted on a lower positioning beam 410, which is installed on a lower frame 302. The longitudinal rib support movable frame 401 is slidably mounted on the lower positioning beam 410 via a sliding assembly. Specifically, the lower positioning beam 410 extends along a second horizontal direction and is fixed at both ends to the lower frame 302. Two vertical beams are spaced apart on the lower positioning beam 410. Two first lifting drive 404s are respectively mounted on the two vertical beams, with the output ends of the first lifting drive 404s facing upwards. Between the two vertical beams and the longitudinal rib support movable frame 401, one is provided with a guide rail 411 along the vertical direction, and the other is provided with a guide slider 412. The guide slider 412 is slidably mounted on the guide rail 411, allowing the longitudinal rib support movable frame 401 to move up and down along the vertical beams, thereby driving multiple longitudinal rib support rollers 402 to move up and down. The number of longitudinal rib rollers 402 in the lower longitudinal rib positioning mechanism and the upper longitudinal rib positioning mechanism are different, but they adopt the same driving method, and the clamping and positioning operations can be performed simultaneously during positioning.

[0036] In some embodiments, the welding mechanism 300 further includes a main column 303, a transformer assembly 304, and a welding electrode moving assembly. The bottom end of the main column 303 is fixedly connected to the lower frame 302, and the upper frame 301 is mounted on the main column 303 and located above the lower frame 302. The transformer assembly 304 includes a plurality of transformers 3041. The welding electrode moving assembly includes an upper welding electrode moving assembly disposed on the upper frame 301 and a lower welding electrode moving assembly disposed on the lower frame 302. The upper welding electrode moving assembly and the lower welding electrode moving assembly respectively weld multiple welding points of the two rows of bottom plate longitudinal ribs 100 and bottom plate stirrups 200.

[0037] like Figure 4 As shown, the bottom ends of the two main support columns 303 are respectively connected to the top ends of the two lower frames 302. The two lower frames 302 are connected and fixed together by a lower connecting beam 3021. The upper frame 301 is set above the main support columns 303 and spaced apart from the lower frames 302. The lower frames 302, upper frames 301, main support columns 303, and lower connecting beams 3021 together constitute the main frame of the welding mechanism 300. The main frame also undertakes the installation and fixing of multiple equipment devices in the welding area C. Transformer frames 3043 are respectively provided on the upper frame 301 and the lower frame 302. Two sets of transformer assemblies 304 are respectively installed on the two transformer frames 3043. Each transformer assembly 304 includes multiple transformers 3041. Each transformer 3041 is fixedly connected to the transformer frame 3043 by connecting corner pieces 3044. Each transformer 3041 has a positive and a negative electrode 3042, which is used to realize the electrical connection of the transformer 3041. Figure 4 In the embodiment shown, the transformer assembly 304 on the upper frame 301 includes four transformers 3041, and the transformer assembly 304 on the lower frame 302 includes three transformers 3041, which correspond to the electrical connections of the upper welding electrode moving assembly and the lower welding electrode moving assembly, respectively.

[0038] The number of welding electrode components 310 in the upper welding electrode moving assembly and the lower welding electrode moving assembly can be different. The specific number can be matched and set according to the number of the upper and lower rows of bottom plate longitudinal ribs 100. The rest can be set with the same structure, that is, the welding electrode components 310 are positioned opposite each other to correspond to the welding positioning of the upper and lower rows of bottom plate longitudinal ribs 100.

[0039] Specifically, both the upper welding electrode moving assembly and the lower welding electrode moving assembly include a base 305, a frame beam 306, a second lifting drive 307, a primary moving assembly 308, a secondary moving assembly 309, and a welding electrode assembly 310. Two bases 305 are provided, and the two bases 305 are spaced apart along the second horizontal direction and fixed on the upper frame 301 or the lower frame 302. The two ends of the frame beam 306 are slidably connected to the two bases 305 respectively, and the sliding direction is along the vertical direction. The second lifting drive component 307 is provided on the base 305, and the output end of the second lifting drive component 307 is connected to the frame beam 306 to drive the frame beam 306 to slide up and down in the vertical direction. The primary moving component 308 is provided on the frame beam 306. The secondary moving component 309 is provided on the primary moving component 308. Multiple welding electrode components 310 are provided on the secondary moving component 309. The primary moving component 308 and the secondary moving component 309 can drive the welding electrode components 310 to move along the second horizontal direction to weld multiple welding points in the same row in sequence. The welding electrode components 310 are electrically connected to the transformer component 304.

[0040] Combination Figure 5 As shown, the second lifting drive component 307, which employs a cylinder, drives the frame beam 306 to reciprocate vertically, thereby moving the welding electrode assembly 310 toward or away from the longitudinal rib 100 of the base plate. For ease of installation and operation, two second lifting drive components 307 are mounted on two bases 305, with their output ends positioned vertically (Z-direction) away from the welding electrode assembly 310. When the output ends of the second lifting drive components 307 retract, they move the welding electrode assembly 310 toward the welding point on the longitudinal rib 100 of the base plate; when they extend, they move the welding electrode assembly 310 away from the welding point. The frame beam 306 is positioned along a second horizontal direction. Multiple bearings 3061 are provided between the two ends of the frame beam 306 and the base 305 for sliding installation. CF bearings can be selected for the bearings 3061 to guide the frame beam 306 and reduce friction. In this embodiment, three bearings 3061 are respectively provided at both ends of the frame beam 306. The three bearings 3061 are spaced apart in the vertical direction and rolled on the limiting rail on the base 305 to achieve sliding installation. By sequentially setting a primary moving component 308 and a secondary moving component 309 on the frame beam 306, the welding electrode assembly 310 is driven to move in the second horizontal direction, which facilitates the step-by-step welding of multiple weld points by multiple welding electrode assemblies 310. The number of welding electrode assemblies 310 is less than the number of longitudinal ribs 100 in the same row of the bottom plate, that is, less than the number of weld points. Through the movement drive of the primary moving component 308 and the secondary moving component 309, some weld points can be welded first, and then the remaining weld points can be welded. This helps to reduce the number of transformers 3041 and welding electrode assemblies 310, save electrical costs, and improve welding efficiency.

[0041] like Figure 6 As shown, the primary moving component 308 includes a primary slide rail 3081, a primary slide plate 3083, and a primary drive component 3084. The primary slide rail 3081 is mounted on the frame beam 306, and a primary slider 3082 is slidably mounted on the primary slide rail 3081 in the second horizontal direction (Y direction). The primary slide plate 3083 is fixedly connected to the primary slider 3082. The primary drive component 3084 is mounted on the frame beam 306, and the output end of the primary drive component 3084 is connected to the primary slide plate 3083 to drive the primary slide plate 3083 to slide. The secondary moving component 309 includes a secondary slide rail 3091, a secondary slide plate 3093, and a secondary driving component 3094. The secondary slide rail 3091 is disposed on the primary slide plate 3083, and a secondary slider 3092 is slidably disposed on the secondary slide rail 3091 in the Y direction. The secondary slide plate 3093 is fixedly connected to the secondary slider 3092, and the welding electrode assembly 310 is disposed on the secondary slide plate 3093. The secondary driving component 3094 is disposed on the primary slide plate 3083, and the output end of the secondary driving component 3094 is connected to the secondary slide plate 3093 to drive the secondary slide plate 3093 to slide.

[0042] by Figure 5 and Figure 10 For example, both the primary drive component 3084 and the secondary drive component 3094 are linear drive components, such as cylinders. Multiple base plate longitudinal ribs 100 in the same row are divided into two groups according to their interval numbers (odd and even). In the initial state, the four welding electrode assemblies 310 on the upper frame 301 are vertically aligned with the odd or even group of base plate longitudinal ribs 100. After the second lifting drive 307 drives the welding electrode assemblies 310 to move towards the base plate longitudinal ribs 100, the secondary movement assembly 309 drives the welding electrode assemblies 310 to move in the second horizontal direction and align with the four welding points of the odd number for welding. After welding is completed, the secondary movement assembly 309 moves the welding electrode assemblies 310 to avoid the currently welded welding point, the second lifting drive 307 drives the welding electrode assemblies 310 to avoid the current base plate longitudinal rib 100, and the primary movement assembly 308 drives multiple welding electrode assemblies 310 to move a specified distance (the specified distance is the distance between two adjacent base plate longitudinal ribs 100 or an integer multiple of the distance), so that three welding electrode assemblies 310 weld the remaining three welding points in the upper row. Then, the assembly is reset. Similarly, the primary moving component 308, the secondary moving component 309, and the second lifting drive component 307 on the lower frame 302 weld the five bottom plate longitudinal ribs 100 in two stages.

[0043] In some embodiments, the welding electrode assembly 310 includes a welding cylinder 311, a fixed electrode holder 313, and a movable electrode holder 315. The cylinder body of the welding cylinder 311 is fixed on the secondary slide plate 3093 by a cylinder frame 312. One end of the fixed electrode holder 313 is disposed on the cylinder body of the welding cylinder 311, and the other end of the fixed electrode holder 313 is provided with two fixed electrode heads 314. One end of the movable electrode holder 315 is disposed on the output rod of the welding cylinder 311, and the other end of the movable electrode holder 315 is provided with a movable electrode head 316. The fixed electrode head 314 and the movable electrode head 316 are respectively connected to the positive and negative terminals of the transformer 3041 through a flexible wire 320.

[0044] Combination Figure 5 and Figure 7As shown, the cylinder body of the welding cylinder 311 is fixed to the secondary slide plate 3093 via the cylinder frame 312, facilitating the relative arrangement and installation of the upper and lower welding electrode assemblies 310 for welding the upper and lower rows of bottom plate longitudinal ribs 100 respectively. The fixed electrode seat 313 is fixed to the cylinder body of the welding cylinder 311 via a fixed bracket 3111, and is used to mount the fixed electrode head 314. The output rod of the welding cylinder 311 is provided with a rod plate 3112, which is arranged parallel to the fixed bracket 3111. A guide plate 319 and a movable electrode seat 315 are mounted on the rod plate 3112. An insulating plate 317 is provided between the welding cylinder 311 and the cylinder frame 312, between the cylinder body of the welding cylinder 311 and the fixed electrode seat 313, and between the rod plate 3112 and the guide plate 319 for electrical isolation. A copper plate 318 is connected to the fixed electrode holder 313, and a copper plate 318 is connected to the lead wire plate 319. The two copper plates 318 are respectively connected to the positive and negative terminals of the transformer 3041 via flexible wires 320, thus achieving electrical connection between the fixed electrode head 314 and the movable electrode head 316. Using copper plates 318 and terminals 3042 for electrical connection facilitates wiring and overall layout, and makes connection convenient. Furthermore, as... Figure 7 The fixed electrode holder 313 has a slot 3131 at its end opposite to the welding cylinder 311. Two fixed electrode heads 314 are formed on both sides of the slot 3131. The fixed electrode heads 314 are perpendicular to the fixed electrode holder 313. Each fixed electrode head 314 has an extension length opposite to the fixed electrode holder 313 and towards the side where the movable electrode head 316 is located. When the secondary moving assembly 309 moves the welding electrode assembly 310, the moving distance is equal to the extension length of the fixed electrode head 314, allowing the fixed electrode head 314 to avoid the bottom plate longitudinal rib 100 in the vertical direction. After the fixed electrode head 314 moves vertically, the primary moving assembly 308 moves the welding electrode assembly 310 to align with the next set of bottom plate longitudinal ribs 100. During welding, the two fixed electrode heads 314 are respectively pressed against both sides of the movable electrode head 316, facilitating close contact welding between the movable electrode head 316, the bottom plate longitudinal rib 100, and the bottom plate stirrup 200, thereby improving welding quality. Figure 10 As shown, when the second lifting drive 307 drives the welding electrode assembly 310 to move toward the bottom plate longitudinal rib 100, the bottom plate hoop 200 can be inserted into the slot 3131 for positioning. The movable electrode head 316 and the fixed electrode head 314 are located on the upper and lower sides of the bottom plate longitudinal rib 100, so that the movable electrode head 316 can press the weld point between the bottom plate longitudinal rib 100 and the bottom plate hoop 200 between the two fixed electrode heads 314 for welding during welding.

[0045] Using the highway box girder bottom plate processing production line provided in the above embodiments, this embodiment also provides a highway box girder bottom plate processing and production method, including the following steps: S1, transport multiple bottom plate longitudinal bars 100 from the longitudinal bar storage and conveying area A to the welding area C; such as Figure 1 After the steel reinforcement raw materials are straightened and cut, they form the bottom plate longitudinal reinforcement 100. Along the axial direction (first horizontal direction X direction) of the bottom plate longitudinal reinforcement 100, the longitudinal reinforcement storage and conveying area A conveys and feeds the twelve bottom plate longitudinal reinforcements 100 in the order of seven in the upper row and five in the lower row. When all twelve bottom plate longitudinal reinforcements 100 have reached the designated position in the welding area C, the feeding stops once and waits for subsequent welding.

[0046] S2, a bottom plate stirrup 200 from the stirrup storage and conveying area B is conveyed to the welding area C and positioned; after the end of the bottom plate longitudinal reinforcement 100 facing the welding area C is in place, the stirrup storage and conveying area B conveys a bottom plate stirrup 200 to the side of the bottom plate longitudinal reinforcement 100 away from the welding area C; then the welding area C is set up where the stirrup clamping and feeding mechanism C1 clamps the bottom plate stirrup 200, so that the bottom plate stirrup 200 is fitted with multiple bottom plate longitudinal reinforcements 100 and moves towards the welding area C; the stirrup welding clamping mechanism C2 of the welding area C clamps and fixes the bottom plate stirrup 200 in the position to be welded.

[0047] S3, the longitudinal reinforcement positioning mechanism 400 is activated and drives multiple bottom plate longitudinal reinforcements 100 and bottom plate stirrups 200 to be positioned; Specifically, initially, the upper longitudinal rib positioning mechanism and the lower longitudinal rib positioning mechanism are located in... Figure 8 The initial state is shown; then the two longitudinal rib positioning mechanisms 400 located on the upper frame 301 and the lower frame 302 are simultaneously and synchronously activated, specifically: S31, the first lifting drive component 404 starts and drives the longitudinal rib support movable frame 401 to move toward the bottom plate longitudinal rib 100, and drives multiple longitudinal rib support rollers 402 to move toward the bottom plate longitudinal rib 100 simultaneously. At this time, the longitudinal rib support rollers 402 are all at the first rotation angle, so that the bottom plate longitudinal rib 100 is located in the gap 4021 between two adjacent longitudinal rib support rollers 402. S32, the steering drive component 407 drives the linkage plate 406 to move and drives multiple longitudinal rib support plate connecting rods 405 to rotate synchronously, so that multiple longitudinal rib support rollers 402 rotate synchronously and clamp multiple bottom plate longitudinal ribs 100, such as Figure 9 As shown, the twelve longitudinal ribs 100 of the base plate are respectively clamped in the twelve positioning slots 4022.

[0048] S33, adjust the positions of the bottom plate stirrups 200 and multiple bottom plate longitudinal reinforcements 100 so that the upper and lower rows of bottom plate longitudinal reinforcements 100 are tightly against the inner side of the bottom plate stirrups 200. Depending on the actual situation, the first lifting drive component 404 can be adjusted appropriately to make the bottom plate stirrups 200 abut against the bottom plate longitudinal reinforcements 100, resulting in the following... Figure 10The state shown is then entered, and welding is then initiated.

[0049] S4, the welding mechanism 300 starts and welds the bottom plate stirrups 200 and multiple bottom plate longitudinal bars 100; after welding is completed, the welding mechanism 300 resets. In the initial state, the upper welding electrode moving assembly and the lower welding electrode moving assembly are located on the upper and lower sides away from the longitudinal rib 100 of the bottom plate, respectively. After welding is started, the specific steps of step S4 include: S41, the second lifting drive component 307 drives the frame beam 306 to move toward the bottom plate longitudinal rib 100, so that the fixed electrode head 314 and the movable electrode head 316 in the welding electrode assembly 310 are located on both sides of the bottom plate stirrup 200 and the bottom plate longitudinal rib 100 respectively in the vertical direction.

[0050] Combination Figure 10 When the welding electrode assembly 310 is lowered into position, the bottom plate stirrup 200 passes through the slots 3131 of the two fixed electrode heads 314. The fixed electrode head 314 and the movable electrode head 316 are located on the upper and lower sides of the bottom plate longitudinal rib 100, respectively, but there is a misalignment along the second horizontal direction.

[0051] S42, the secondary moving component 309 drives the welding electrode component 310 to move along the second horizontal direction, so that the fixed electrode head 314 and the movable electrode head 316 are aligned with the first set of bottom plate longitudinal ribs 100 in the vertical direction. In this step, the secondary moving component 309 moves the fixed electrode holder 313 toward the longitudinal rib 100 of the base plate, so that the fixed electrode head 314 and the movable electrode head 316 are respectively facing the upper and lower sides of the welding point. It can be understood that the moving distance of the secondary moving component 309 is the extension length of the fixed electrode head 314 along the second horizontal direction.

[0052] S43, the welding cylinder 311 drives the movable electrode head 316 in the welding electrode assembly 310 to move toward the base plate stirrup 200 and press the base plate stirrup 200 and the base plate longitudinal rib 100 against the fixed electrode head 314; Figure 10 As shown, the upper row of movable electrode heads 316 press against the upper reinforcing bars of the bottom plate stirrups 200, and press the corresponding bottom plate longitudinal reinforcing bars 100 against the two fixed electrode heads 314; the lower row of movable electrode heads 316 press against the lower reinforcing bars of the bottom plate stirrups 200, and press the corresponding bottom plate longitudinal reinforcing bars 100 against the two fixed electrode heads 314.

[0053] S44, the transformer assembly 304 is started and the weld points between the base plate stirrups 200 and the first set of base plate longitudinal ribs 100 are welded; as shown Figure 10 In this step, the welding electrode assembly 310 can weld the weld points of the first group of bottom plate longitudinal ribs 100 with odd numbers in the upper and lower rows of bottom plate longitudinal ribs 100. After welding is completed, the transformer assembly 304 is disconnected.

[0054] S45, welding cylinder 311, secondary drive component 3094 and second lifting drive component 307 all move in the opposite direction to their initial positions; After the welding of the first set of bottom plate longitudinal ribs 100 is completed, the welding cylinder 311 drives the movable electrode head 316 away from the bottom plate longitudinal ribs 100 or the bottom plate stirrups 200, and the secondary moving component 309 drives the fixed electrode head 314 away from the bottom plate longitudinal ribs 100 to move in the vertical direction to avoid the bottom plate longitudinal ribs 100; then the second lifting drive component 307 drives the welding electrode assembly 310 to move away from the bottom plate longitudinal ribs 100 and the bottom plate stirrups 200 until the bottom plate stirrups 200 are disengaged from the slot 3131; S46, the primary moving component 308 drives the welding electrode assembly 310 to move along the second horizontal direction, so that the fixed electrode head 314 and the movable electrode head 316 are aligned with the second set of bottom plate longitudinal ribs 100 in the vertical direction. That is, the moving component 308 drives the welding electrode component 310 to weld the second group of bottom plate longitudinal ribs 100 with even serial numbers.

[0055] S47, Perform steps S41-S44 to weld the weld points between the bottom plate stirrups 200 and the second set of bottom plate longitudinal reinforcements 100.

[0056] During the above welding process, the number of welding electrode assemblies 310 and the number of bottom plate longitudinal ribs 100 are initially set so that the welding electrode assemblies 310 can perform multiple welding operations in sequence through one or two movements of the moving assembly 308, and finally complete the welding of the bottom plate stirrups 200 and all bottom plate longitudinal ribs 100.

[0057] S5, the mesh discharge area D is equipped with a mesh pulling mechanism D1 to clamp the bottom plate longitudinal reinforcement 100 and drive the bottom plate mesh to move along the first horizontal direction. The moving distance is the distance between the two bottom plate stirrups 200. Generally, the mesh pulling mechanism D1 includes a mesh pulling clamp D2, which can clamp the longitudinal ribs 100 of the base plate to drive the mesh sheet of the base plate to move. Both the mesh pulling mechanism D1 and the mesh pulling clamp D2 can be implemented using existing motion drive and clamping mechanisms, which will not be described in detail in this embodiment.

[0058] S6, execute steps S2-S5 until all bottom plate stirrups on the bottom plate mesh are welded.

[0059] The highway box girder bottom plate processing and production method provided in this embodiment of the invention uses two upper and lower longitudinal reinforcement positioning mechanisms 400 to position and clamp the upper and lower rows of bottom plate longitudinal reinforcement 100, facilitating rapid positioning and welding of the bottom plate longitudinal reinforcement 100 and bottom plate stirrups 200, thereby improving welding efficiency. After the welding of one bottom plate stirrup 200 is completed, the mesh pulling mechanism D1 clamps the bottom plate mesh and moves it a certain distance before continuing to weld the next bottom plate stirrup 200, realizing continuous automated welding operation of the bottom plate mesh. The alignment of the bottom plate longitudinal reinforcement 100 and the bottom plate stirrups 200 is accurate, the welding quality is high, the welding efficiency is high, and labor is saved and labor intensity is reduced.

[0060] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A production line for processing the bottom plate of a highway box girder, wherein the bottom plate of the highway box girder includes multiple longitudinal reinforcement bars (100) and multiple stirrups (200); characterized in that, The highway box girder bottom plate processing production line includes a longitudinal reinforcement storage and conveying area (A), a stirrup storage and conveying area (B), a welding area (C), and a wire mesh discharge area (D) arranged sequentially along a first horizontal direction. The stirrup storage and conveying area (B) is vertically located above the longitudinal reinforcement storage and conveying area (A) and is used to store multiple bottom plate stirrups (200), and can sequentially convey the bottom plate stirrups (200) to a first position along the first horizontal direction. The welding area (C) is equipped with a welding mechanism (30). 0) and longitudinal reinforcement positioning mechanism (400), multiple bottom plate longitudinal reinforcements (100) are positioned in the longitudinal reinforcement positioning mechanism (400), the bottom plate stirrups (200) are sequentially conveyed to the welding area (C) and multiple bottom plate longitudinal reinforcements (100) are fitted and positioned, the welding mechanism (300) sequentially welds the positioned bottom plate stirrups (200) and multiple bottom plate longitudinal reinforcements (100) to form a bottom plate mesh, and the bottom plate mesh is stepped conveyed to the mesh discharge area (D); The longitudinal rib positioning mechanism (400) includes a longitudinal rib support frame (401) and a plurality of longitudinal rib rollers (402). The longitudinal rib support frame (401) is adjustable in position along the vertical direction and is mounted on the welding mechanism (300). A plurality of roller shafts (403) are spaced apart on the longitudinal rib support frame (401) along the second horizontal direction. The plurality of longitudinal rib rollers (402) are rotatably mounted on the longitudinal rib support frame (401) via the plurality of roller shafts (403). The plurality of longitudinal rib rollers (402) have a first rotation angle and a second rotation angle. At the first rotation angle, there is a gap (4021) between two adjacent longitudinal rib rollers (402) to position the plurality of bottom plate longitudinal ribs (100). At the second rotation angle, there is a positioning groove (4022) between two adjacent longitudinal rib rollers (402), and the bottom plate longitudinal ribs (100) can be clamped in the positioning groove (4022) and positioned in a designated position. The longitudinal reinforcement positioning mechanism (400) also includes: A first lifting drive (404) is disposed on the welding mechanism (300), and the longitudinal rib support movable frame (401) is disposed at the output end of the first lifting drive (404). The first lifting drive (404) is configured to drive the longitudinal rib support movable frame (401) to reciprocate along the vertical direction. Multiple longitudinal rib support plate connecting rods (405), the first ends of the multiple longitudinal rib support plate connecting rods (405) are respectively mounted on multiple roller shafts (403) and can rotate coaxially with the multiple roller shafts (403); Linkage plate (406), the linkage plate (406) is rotatably connected to the second end of the plurality of longitudinal rib support plate connecting rods (405); A steering drive (407) is provided on the longitudinal rib support movable frame (401). The output end of the steering drive (407) is arranged along the second horizontal direction and connected to the linkage plate (406). When the steering drive (407) drives the linkage plate (406) to move, the linkage plate (406) drives multiple longitudinal rib support plate connecting rods (405) and multiple roller shafts (403) to rotate synchronously. The multiple roller shafts (403) drive multiple longitudinal rib rollers (402) to rotate synchronously. The welding area (C) is also provided with a stirrup clamping and feeding mechanism (C1) and a stirrup welding clamping mechanism (C2). The stirrup clamping and feeding mechanism (C1) can clamp the bottom plate stirrup (200) located at the first position and send the bottom plate stirrup (200) to the second position. The stirrup welding clamping mechanism (C2) is used to clamp and clamp the bottom plate stirrup (200) located at the second position to send it to the welding position, so that the bottom plate stirrup (200) is aligned with the bottom plate longitudinal reinforcement (100).

2. The highway box girder bottom plate processing production line according to claim 1, characterized in that, The longitudinal rib roller (402) is provided with two half-grooves (4023) evenly spaced around its circumference. At the first rotation angle, the two half-grooves (4023) on the longitudinal rib roller (402) are arranged along the first horizontal direction. At the second rotation angle, the two half-grooves (4023) on the longitudinal rib roller (402) are arranged along the second horizontal direction. The two half-grooves (4023) on two adjacent longitudinal rib rollers (402) are combined to form the positioning groove (4022).

3. The highway box girder bottom plate processing production line according to claim 1, characterized in that, Two longitudinal rib positioning mechanisms (400) are provided. The welding mechanism (300) includes an upper frame (301) and a lower frame (302). The two longitudinal rib positioning mechanisms (400) are respectively arranged on the upper frame (301) and the lower frame (302) along the vertical direction. The multiple longitudinal rib support rollers (402) of the two longitudinal rib positioning mechanisms (400) are arranged opposite to each other to position the two rows of bottom plate longitudinal ribs (100) respectively.

4. The highway box girder bottom plate processing production line according to claim 3, characterized in that, In the longitudinal rib positioning mechanism (400) provided on the upper frame (301), the first lifting drive (404) is provided on the longitudinal rib bracket plate (408), the longitudinal rib bracket plate (408) is fixed on the upper frame (301) by the upper positioning fixing frame (409), and the longitudinal rib movable frame (401) can reciprocate in contact with the longitudinal rib bracket plate (408); In the longitudinal rib positioning mechanism (400) provided on the lower frame (302), the first lifting drive (404) is provided on the lower positioning beam (410), the lower positioning beam (410) is installed on the lower frame (302), and the longitudinal rib support movable frame (401) is slidably installed on the lower positioning beam (410) through a sliding assembly.

5. The highway box girder bottom plate processing production line according to claim 3, characterized in that, The welding mechanism (300) also includes: A main frame (303) is fixedly connected to the lower frame (302) at its bottom end, and an upper frame (301) is mounted on the main frame (303) and located above the lower frame (302). A transformer assembly (304) comprising a plurality of transformers (3041); The welding electrode moving assembly includes an upper welding electrode moving assembly disposed on the upper frame (301) and a lower welding electrode moving assembly disposed on the lower frame (302). The upper welding electrode moving assembly and the lower welding electrode moving assembly are respectively disposed corresponding to two rows of bottom plate longitudinal ribs (100) and are capable of welding the bottom plate stirrups (200) to multiple welding points of multiple bottom plate longitudinal ribs (100). Both the upper welding electrode moving assembly and the lower welding electrode moving assembly include: The machine base (305) is provided in two, and the two machine bases (305) are spaced apart along the second horizontal direction; A frame beam (306) is provided, with two machine bases (305) slidably connected to each end of the frame beam (306) in the vertical direction. The second lifting drive (307) is disposed on the base (305), and the output end of the second lifting drive (307) is connected to the frame beam (306) to drive the frame beam (306) to slide up and down in the vertical direction; A primary moving assembly (308) is mounted on the frame beam (306); A secondary movement component (309) is disposed on the primary movement component (308); A welding electrode assembly (310) is provided on the secondary moving assembly (309). The primary moving assembly (308) and the secondary moving assembly (309) can drive the welding electrode assembly (310) to move along the second horizontal direction to sequentially weld the multiple welding points in the same row. The welding electrode assembly (310) is electrically connected to the transformer assembly (304).

6. The highway box girder bottom plate processing production line according to claim 5, characterized in that, The primary movement component (308) includes: A primary slide rail (3081) is provided on the frame beam (306), and a primary slider (3082) is slidably provided on the primary slide rail (3081). A primary slide plate (3083) is fixedly connected to the primary slider (3082); A primary drive unit (3084) is provided on the frame beam (306), and the output end of the primary drive unit (3084) is connected to the primary slide plate (3083) to drive the primary slide plate (3083) to slide. The secondary movement component (309) includes: A secondary slide rail (3091) is provided on the primary slide plate (3083), and a secondary slider (3092) is slidably provided on the secondary slide rail (3091); A secondary slide plate (3093) is fixedly connected to the secondary slider (3092), and the welding electrode assembly (310) is disposed on the secondary slide plate (3093); A secondary drive unit (3094) is disposed on the primary slide plate (3083), and the output end of the secondary drive unit (3094) is connected to the secondary slide plate (3093) to drive the secondary slide plate (3093) to slide.

7. The highway box girder bottom plate processing production line according to claim 6, characterized in that, The welding electrode assembly (310) includes: Welding cylinder (311), the cylinder body of which is fixed on the secondary slide plate (3093) by a cylinder frame (312); A fixed electrode holder (313) is provided at one end on the cylinder body of the welding cylinder (311), and two fixed electrode heads (314) are provided at the other end of the fixed electrode holder (313). A movable electrode holder (315) is provided at one end on the output rod of the welding cylinder (311), and a movable electrode head (316) is provided at the other end of the movable electrode holder (315). The fixed electrode head (314) and the movable electrode head (316) are respectively connected to the positive and negative terminals of the transformer (3041) via flexible wires (320).

8. A method for processing and producing the bottom plate of a highway box girder, characterized in that, The highway box girder bottom plate processing production line according to any one of claims 1-7, the highway box girder bottom plate processing production method includes the following steps: S1, transport multiple bottom plate longitudinal bars (100) from the longitudinal bar storage and conveying area (A) to the welding area (C); S2, a bottom plate stirrup (200) from the stirrup storage and conveying area (B) is conveyed to the welding area (C) and positioned; S3, the longitudinal reinforcement positioning mechanism (400) is activated and drives multiple longitudinal reinforcements (100) of the bottom plate to be positioned with the stirrups (200) of the bottom plate; S4, the welding mechanism (300) is started and welds the bottom plate stirrups (200) and multiple bottom plate longitudinal bars (100); after welding is completed, the welding mechanism (300) is reset; S5, the mesh discharge area (D) is equipped with a mesh pulling mechanism (D1) to clamp the bottom plate longitudinal reinforcement (100) and drive the bottom plate mesh to move along the first horizontal direction. The moving distance is the distance between the two bottom plate stirrups (200). S6, execute steps S2-S5 until all the bottom plate stirrups (200) on the bottom plate mesh are welded.

9. The method for processing and producing the bottom plate of a highway box girder according to claim 8, characterized in that, In step S3, the two longitudinal rib positioning mechanisms (400) located on the upper frame (301) and the lower frame (302) are simultaneously activated, specifically: S31, the first lifting drive (404) drives the longitudinal rib support movable frame (401) to move toward the bottom plate longitudinal rib (100), so that the bottom plate longitudinal rib (100) is located in the gap (4021) between two adjacent longitudinal rib support rollers (402); S32, the steering drive unit (407) drives the linkage plate (406) to move and drives multiple longitudinal rib support plate connecting rods (405) to rotate synchronously, so that multiple longitudinal rib support rollers (402) rotate synchronously and clamp multiple bottom plate longitudinal ribs (100). S33, adjust the position of the bottom plate stirrups (200) and the multiple bottom plate longitudinal bars (100) so that the upper and lower rows of bottom plate longitudinal bars (100) are respectively close to the inner side of the bottom plate stirrups (200).

10. The method for processing and producing the bottom plate of a highway box girder according to claim 8, characterized in that, The specific steps of step S4 include: S41, the second lifting drive (307) drives the frame beam (306) to move toward the bottom plate longitudinal rib (100), so that the fixed electrode head (314) and the movable electrode head (316) in the welding electrode assembly (310) are located on both sides of the bottom plate stirrup (200) and the bottom plate longitudinal rib (100) respectively in the vertical direction. S42, the secondary moving component (309) drives the welding electrode component (310) to move along the second horizontal direction, so that the fixed electrode head (314) and the movable electrode head (316) are aligned with the first group of bottom plate longitudinal ribs (100) in the vertical direction; S43, the welding cylinder (311) drives the movable electrode head (316) in the welding electrode assembly (310) to move toward the base plate stirrup (200) and presses the base plate stirrup (200) and the base plate longitudinal rib (100) against the fixed electrode head (314); S44, the transformer assembly (304) starts and welds the weld points between the bottom plate stirrups (200) and the first group of bottom plate longitudinal ribs (100); S45, the welding cylinder (311), the secondary drive component (3094) and the second lifting drive component (307) all move in the opposite direction to their initial positions; S46, the first moving component (308) drives the welding electrode assembly (310) to move along the second horizontal direction, so that the fixed electrode head (314) and the movable electrode head (316) are aligned with the second set of bottom plate longitudinal ribs (100) along the vertical direction; S47, Perform steps S41-S44 to weld the weld points between the bottom plate stirrups (200) and the second set of bottom plate longitudinal reinforcements (100).

Images