Automatic production line for box girder reinforcement cage

Abstract

The utility model discloses an automatic production line for a box girder steel reinforcement framework. The automatic production line comprises a feeding device, a splicing and cutting device, a steel reinforcement distribution device and a stirrup welding device, the short steel bars are sequentially fed to an operation table; the splicing and cutting device cuts the two ends of the short reinforcements and splices long reinforcements; the steel bar distribution device comprises a clamping module and a positioning module, and the positioning module distributes long steel bars according to the preset distance and number and fixes the relative positions of the long steel bars. And the stirrup welding device is used for bending and welding stirrups on a group of long steel bars. A series of key procedures such as feeding, splicing and cutting, steel bar distribution and stirrup welding are integrated in a reciprocating mode, the whole production line is in a U shape, all the procedures are tightly combined and smoothly connected, production efficiency is remarkably improved, the production period is shortened, and stability and consistency of production precision are guaranteed through accurate control and positioning. The production line is reasonable in process design, small in occupied area and easy to maintain, and the production cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of box girder manufacturing technology, and in particular to an automated production line for box girder steel reinforcement cage. Background Technology

[0002] Box girders are beam structures with hollow rectangular cross-sections, characterized by high stiffness, large load-bearing capacity, and aesthetically pleasing designs. They are widely used in highway, high-speed railway, and bridge construction. The reinforcing steel in box girders mainly consists of longitudinal reinforcement and transverse stirrups, which play crucial roles in the box girder structure.

[0003] In the current production of box girder steel reinforcement cages, traditional manual and semi-automated production methods still dominate. These methods have many shortcomings, such as low production efficiency, high labor costs, and unstable quality control. Specifically, traditional production methods require a large amount of manual labor for cutting, bending, welding, and assembling steel bars. These tasks are not only labor-intensive but also easily affected by human factors, leading to inconsistent product quality. Furthermore, with the continuous increase in national investment in infrastructure construction, the demand for box girder steel reinforcement cages is also growing, and traditional production methods can no longer meet the needs of large-scale, high-efficiency production.

[0004] However, the promotion and application of automated production lines in the production of box girder steel reinforcement cages still face many difficulties. The production process of box girder steel reinforcement cages is complex, requiring high precision and stability from automated equipment, which results in high research and development and manufacturing costs. Furthermore, automated production lines need to be closely integrated with multiple factors such as production processes, process requirements, and equipment layout to achieve optimal production results. This is especially true for longitudinal steel reinforcement bars, which can be over ten meters long, placing extremely high demands on production line layout and increasing the difficulty of promoting and applying automated production lines. Because automated production lines can significantly improve production efficiency, reduce labor costs, and improve product quality, thereby meeting the needs of large-scale, high-efficiency production while enhancing the stability and controllability of the production process, the design of automated production lines with reasonable step layouts, reliable process flows, and reliable configuration precision is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] According to an embodiment of this utility model, to address the aforementioned shortcomings of the prior art, an automated production line for a box girder reinforcement cage is provided for manufacturing reinforced box girders, comprising:

[0006] The feeding device sequentially feeds short steel bars to the operating platform.

[0007] The splicing and cutting device is located at the end of the operating table. The splicing and cutting device cuts both ends of short steel bars and splices several cut short steel bars into long steel bars.

[0008] The rebar distribution device includes a clamping module and a positioning module. The clamping module clamps long rebars, which are then clamped to the positioning module by the splicing and cutting device. The positioning module distributes the long rebars according to a preset spacing and quantity and fixes the relative positions of the long rebars to form a group of long rebars.

[0009] The stirrup welding device bends and welds the stirrups to a set of long steel bars, with the extension directions of the stirrups and the long steel bars being orthogonal to each other.

[0010] Preferably, the feeding device includes several pairs of moving steps and stationary steps, with several steps on the outer side of the moving steps and stationary steps. Driven by the driving component, the moving steps move back and forth along the line connecting the short steel bars to the operating table. Each movement drives the short steel bars to be fed sequentially to the operating table along the steps.

[0011] Preferably, the drive assembly includes a motor, a rotating shaft, and an eccentric wheel. The eccentric wheel is sleeved on the rotating shaft. The motor drives the rotating shaft to rotate along the axis to drive the eccentric wheel to rotate. The outer edge of the eccentric wheel contacts the end of the moving step.

[0012] Preferably, the splicing and cutting device is covered by a box, and a detection device is installed inside the box to detect the weld joints between the short steel bars.

[0013] Preferably, the positioning module includes a base, several brackets are disposed on the base, each bracket has a positioning groove at its end, a long steel bar is fixed in the positioning groove, and a locking component is provided between the bracket and the base, which can lock or unlock the bracket to the base.

[0014] Preferably, the locking assembly includes a first biting tooth disposed on the base and a second biting tooth disposed on the bracket, the first biting tooth and the second biting tooth being disposed opposite to each other and coupled together.

[0015] Preferably, the stirrup welding device further includes positioning and clamping components, which are respectively disposed at both ends of the long steel bar, and the positioning and clamping components fasten the ends of the long steel bar.

[0016] Preferably, the positioning and clamping assembly includes a sleeve and a jaw, wherein the sleeve is fitted onto the end of the long reinforcing bar during positioning, and the jaw clamps the end of the long reinforcing bar that extends out of the sleeve.

[0017] Preferably, the sleeve is a trumpet-shaped sleeve, with the side of the trumpet-shaped sleeve with a larger opening facing away from the end of the long reinforcing bar.

[0018] According to the automated production line for box girder reinforcement cages of this utility model, the automated production line significantly improves production speed in terms of production efficiency. The feeding device can automatically and orderly feed short steel bars into the operating table, while the splicing and cutting device quickly transforms short steel bars into long steel bars of the required length through an automated cutting and splicing process. At the same time, the steel bar distribution device ensures that the spacing and quantity of long steel bars meet the design requirements through precise positioning and distribution, providing a solid foundation for subsequent welding work. This utility model integrates a series of key processes such as feeding, splicing and cutting, steel bar distribution, and stirrup welding in a reciprocating manner. The entire production line is U-shaped, with each process closely integrated and smoothly connected. This not only significantly improves production efficiency and shortens the production cycle, but also ensures the stability and consistency of production accuracy through precise control and positioning. The production line has a reasonable process design, occupies a small area, is simple to maintain, and effectively reduces production costs.

[0019] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the automated production line for the steel reinforcement cage of box girders according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the automated production line testing device for the steel reinforcement cage of box girders according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the positioning module structure of the automated production line for the steel reinforcement cage of box girders according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the positioning and clamping assembly structure of the automated production line for the steel reinforcement cage of box girders according to an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the stirrup welding device for an automated production line of box girder steel reinforcement cage according to an embodiment of the present utility model. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0026] First, combine Figure 1-5 This invention describes an automated production line for the steel reinforcement cage of box girders, which is widely used in highway, high-speed railway, and bridge construction. In this embodiment, a small box girder is used as an example.

[0027] like Figure 1-5As shown in the figure, the automated production line for the steel reinforcement cage of the box girder in this embodiment of the present invention is used to weld short steel bars into long steel bars 5 in the manufacturing of steel box girders, and then further weld them with transverse stirrups 6 to manufacture box girders. It includes a feeding device 1, a splicing and cutting device 2, a steel bar distribution device 3 and a stirrup welding device 4.

[0028] Specifically, such as Figure 1-5 As shown, the feeding device 1 sequentially feeds short steel bars onto the operating table. This device enables the sequential and orderly feeding of short steel bars onto the operating table for subsequent processing, connecting multiple short steel bars into the long steel bars 5 required for the product. The automated feeding process reduces the frequency and intensity of manual operation, improving the overall operating efficiency of the production line. The splicing and cutting device 2 is located at the end of the operating table. Short steel bars are sequentially cut at both ends on the operating table and then spliced ​​together. The splicing and cutting device 2 splices several cut short steel bars into long steel bars 5 that meet product requirements. The ends of the short steel bars may rust; proper cutting is beneficial to the quality of the long steel bars 5. This step not only ensures that the length of the steel bars meets production requirements but also improves the quality of the steel bars through automated cutting. Simultaneously, the splicing reduces errors and improves production accuracy. The rebar distribution device 3 includes a clamping module and a positioning module 31, which respectively clamp long rebars 5 and distribute and position them. The clamping module clamps the long rebars 5 from the splicing and cutting device 2 to the positioning module 31. The positioning module 31 distributes the long rebars 5 according to a preset spacing and quantity and fixes their relative positions to form a group of long rebars 5. This group of long rebars 5 meets the arrangement requirements of the longitudinal rebars of the first layer of the product. This device can clamp and accurately position the long rebars 5 and distribute them according to a preset spacing and quantity. This technical feature ensures the uniform distribution of the rebar skeleton and provides a solid foundation for subsequent welding. The stirrup welding device 4 bends the stirrups 6 segment by segment and welds them one by one to the group of long rebars 5. The extension directions of the stirrups 6 and the long rebars 5 are orthogonal to each other. As the long rebars 5 move continuously, the stirrups 6 are welded to different positions of the group of long rebars 5 in sequence, finally forming a complete rebar skeleton. Through the automated welding process, not only is production efficiency improved, but the consistency and stability of welding quality are also ensured. The automated production line integrates a series of key processes such as material feeding, splicing and cutting, steel bar distribution, and stirrup welding. The entire production line is U-shaped, with each process closely integrated and smoothly connected, significantly improving production efficiency and achieving efficient and precise production from short steel bars to complete steel bar skeletons.

[0029] Preferably, the feeding device 1 includes several pairs of moving and stationary steps. The outer sides of the moving and stationary steps are provided with several steps. Driven by the drive assembly, the moving steps reciprocate along the line connecting the short steel bars to the operating table, with each movement causing the short steel bars to be fed sequentially onto the operating table along the steps. The paired moving and stationary steps, along with the stepped design, ensure stable and orderly movement of the short steel bars during feeding. The reciprocating movement of the moving steps, driven by the drive assembly, achieves continuous feeding of the short steel bars, improving feeding efficiency.

[0030] Preferably, the drive assembly includes a motor, a rotating shaft, and an eccentric wheel. The eccentric wheel is mounted on the rotating shaft, and the motor drives the rotating shaft to rotate along its axis, thereby causing the eccentric wheel to rotate. The outer edge of the eccentric wheel contacts the end of the moving step. The use of a motor, rotating shaft, and eccentric wheel as the drive method is a basic structure familiar to those skilled in the art, simple and effective, making the movement of the moving step smoother and more controllable. The eccentric wheel design effectively converts the rotational motion of the motor into the reciprocating linear motion of the moving step, reducing energy consumption and improving the stability and reliability of the system.

[0031] Preferably, such as Figure 2 As shown, the splicing and cutting device 2 is enclosed by a box, inside which is a detection device 21 that detects the weld joints between short steel bars. By enclosing the splicing and cutting device 2 with the detection device 21, the weld joints 22 between the short steel bars can be monitored in real time, ensuring welding quality. This design not only improves the automation level of the production process but also enhances the product quality control capability. The detection device 21 can be, but is not limited to, visual image detection or optical sensors. Taking visual detection as an example, the detection device 21 includes a light source 211, an industrial camera 212, a traverse module 213, and a comprehensive traverse module 214.

[0032] Preferably, such as Figure 3 As shown, the positioning module 31 includes a base 311, with several supports mounted on the base 311. Each support 312 has a positioning groove 313 at its end, and the long steel bar 5 is fixed within the positioning groove 313. A locking component is provided between the support 312 and the base 311, which can lock or unlock the support 312 to the base 311. Through the design of the base 311, the supports 312, and the locking component, the precise positioning and fixing of the long steel bar 5 is achieved. The locking component between the support 312 and the base 311 can flexibly lock or unlock the support 312. In addition, an adjustment component 315, including a track 316 and a motor 317, can be provided to facilitate adaptive adjustment of the position of the long steel bars 5. The adjustment component 316 can drive the support 312 to move along the track 316 to achieve a suitable position.

[0033] Preferably, the locking assembly includes a first engaging tooth 314 disposed on the base 311 and a second engaging tooth disposed on the bracket 312. The first engaging tooth 314 and the second engaging tooth are arranged opposite to each other and coupled. The coupling design of the first engaging tooth 314 and the second engaging tooth makes the connection between the bracket 312 and the base 311 more secure and stable, effectively preventing the displacement and shaking of the long steel bar 5 during the positioning process, while also realizing a self-locking function, making it more convenient and efficient.

[0034] Preferably, such as Figure 4 As shown, the stirrup welding device 4 also includes positioning and clamping components 41, which are respectively disposed at both ends of the long reinforcing bar 5, and the positioning and clamping components 41 fasten the ends of the long reinforcing bar 5. The positioning and clamping components 41 are provided at both ends of the long reinforcing bar 5 to fasten the ends of the long reinforcing bar 5, ensuring the stability and accuracy of the stirrup 6 during the welding process.

[0035] Preferably, the positioning and clamping assembly 41 includes a sleeve and a jaw. When positioning, the sleeve is fitted onto the end of the long steel bar 5, and the jaw is driven by the driver 42 to clamp the end of the long steel bar 5 that extends out of the sleeve. The combination is simple and practical, further strengthening the positioning of the end and facilitating the accurate welding of the stirrup 6.

[0036] Preferably, the sleeve is a trumpet-shaped sleeve 411, with the side of the trumpet-shaped sleeve 411 with a larger opening facing away from the end of the long reinforcing bar 5. The trumpet-shaped sleeve design makes it easier for the end of the long reinforcing bar 5 to extend into the sleeve. The longitudinal reinforcing bars of the box girder are usually very long, and the trumpet shape can correct the positional deviation caused by the bending of the long reinforcing bar 5 due to its excessive length, thereby making it easier for the clamps to hold the end of the long reinforcing bar 5.

[0037] When used during processing, such as Figure 1-5As shown, short steel bars are fed along the outside of the steps by an automated feeding device 1. Each movement of the moving steps pushes one layer of short steel bars upwards into the next step of the stationary steps. The short steel bars are continuously and orderly fed into the operating table, one layer after another. Then, in the splicing and cutting device 2, the short steel bars are precisely cut and spliced ​​to form long steel bars 5 that meet the design requirements. The built-in detection device 21 ensures the welding quality, thereby guaranteeing the strength and stability of the steel bars. Subsequently, the long steel bars 5 are clamped and placed one by one on the positioning module 31. The positioning module 31 fixes and locks their positions to ensure their stability and accuracy in subsequent processing. In the stirrup welding device 4, the positioning and clamping module 41 is positioned to the welding position of the long steel bar 5 and the stirrup 6 under the drive of the cylinder 412. Then, the precise positioning of the sleeve is achieved by the linear guide rail 413 for precise body adjustment. The position of the stirrup welding device 4 is adjusted by the automated lifting module 5. After the shaping component 41 is shaped, the spot welding component performs welding. The shaping mechanism process is closely integrated to form a solid steel skeleton, which is then moved to the unloading end to complete the welding.

[0038] Above, refer to Figure 1-5 This invention describes an automated production line for box girder reinforcement cages according to an embodiment of the present invention, which improves production efficiency and significantly increases production speed. The feeding device 1 automatically and orderly feeds short steel bars into the operating table. The splicing and cutting device 2, through an automated cutting and splicing process, quickly transforms the short steel bars into long steel bars 5 of the required length. Simultaneously, the steel bar distribution device 3, through precise positioning and distribution, ensures that the spacing and quantity of the long steel bars 5 meet design requirements, providing a solid foundation for subsequent welding work. This invention integrates a series of key processes, including feeding, splicing and cutting, steel bar distribution, and stirrup welding 6, in a reciprocating manner. The entire production line is U-shaped, with each process closely integrated and smoothly connected. This not only significantly improves production efficiency and shortens the production cycle but also ensures the stability and consistency of production precision through precise control and positioning. The production line has a reasonable process design, a small footprint, and is easy to maintain, effectively reducing production costs.

[0039] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model.

[0040] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.

[0041] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. An automated production line for the steel reinforcement cage of box girders, characterized in that, Include: The feeding device sequentially feeds short steel bars onto the operating table; A splicing and cutting device is provided at the end of the operating table. The splicing and cutting device cuts both ends of short steel bars and splices several cut short steel bars into long steel bars in sequence. A rebar distribution device, comprising a clamping module and a positioning module, wherein the clamping module clamps the long rebar from the splicing and cutting device to the positioning module, and the positioning module distributes the long rebars according to a preset spacing and quantity and fixes the relative positions of the long rebars to form a group of long rebars; A stirrup welding device is provided, which bends and welds stirrups to a set of long reinforcing bars, wherein the extension directions of the stirrups and the long reinforcing bars are orthogonal to each other.

2. The automated production line for the box girder reinforcement cage as described in claim 1, characterized in that, The feeding device includes several pairs of moving steps and stationary steps. Several steps are provided on the outer side of the moving steps and stationary steps. Driven by the driving component, the moving steps move back and forth along the line connecting the short steel bars to the operating table. Each movement drives the short steel bars to be fed to the operating table along the steps in sequence.

3. The automated production line for the box girder reinforcement cage as described in claim 2, characterized in that, The drive assembly includes a motor, a rotating shaft, and an eccentric wheel. The eccentric wheel is sleeved on the rotating shaft. The motor drives the rotating shaft to rotate along the axis to drive the eccentric wheel to rotate. The outer edge of the eccentric wheel contacts the end of the moving step.

4. The automated production line for the box girder reinforcement cage as described in claim 1, characterized in that, The splicing and cutting device is covered by a box, and a detection device is installed inside the box to detect the welds between the short steel bars.

5. The automated production line for the box girder reinforcement cage as described in claim 1, characterized in that, The positioning module includes a base, several brackets are mounted on the base, each bracket has a positioning groove at its end, a long steel bar is fixed in the positioning groove, and a locking component is provided between the bracket and the base, which can lock or unlock the bracket to the base.

6. The automated production line for the box girder reinforcement cage as described in claim 5, characterized in that, The locking assembly includes a first biting tooth disposed on the base and a second biting tooth disposed on the bracket, the first biting tooth and the second biting tooth being disposed opposite to each other and coupled together.

7. The automated production line for the box girder reinforcement cage as described in claim 1, characterized in that, The stirrup welding device also includes positioning and clamping components, which are respectively disposed at both ends of the long steel bar, and the positioning and clamping components fasten the ends of the long steel bar.

8. The automated production line for the box girder reinforcement cage as described in claim 7, characterized in that, The positioning and clamping assembly includes a sleeve and a jaw. The sleeve is fitted onto the end of the long steel bar during positioning, and the jaw clamps the end of the long steel bar that extends out of the sleeve.

9. The automated production line for the steel reinforcement cage of box girders as described in claim 8, characterized in that, The sleeve is a trumpet-shaped sleeve, with the side of the trumpet-shaped sleeve with a larger opening facing away from the end of the long steel bar.

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