Automatic production method of U-shaped reinforcing mesh for box girder supporting

Abstract

The invention relates to an automatic production method of a U-shaped reinforcing mesh for box girder supporting, and relates to the technical field of reinforcing steel bar machining. S2, preparing a U-shaped steel bar; s3, positioning the straight steel bars; s4, the straight steel bars and the U-shaped steel bars are in lap joint and positioned; s5, the straight reinforcing steel bars and the U-shaped reinforcing steel bars are welded and fixed to form a U-shaped reinforcing steel bar net with a stable structure, the whole process from the reinforcing steel bars to the U-shaped reinforcing steel bar net is automatically controlled, and the production efficiency is high; meanwhile, manual intervention is avoided, and the formed U-shaped reinforcing mesh is good in consistency, high in strength and suitable for continuous large-scale production. The length of the straight reinforcing steel bars is determined according to the length of the U-shaped reinforcing steel bar mesh, the size of the U-shaped reinforcing steel bars is determined according to the size of the U-shaped reinforcing steel bar mesh, the number of the U-shaped reinforcing steel bars and the distance between the U-shaped reinforcing steel bars are determined according to the type of the U-shaped reinforcing steel bar mesh, and production of U-shaped reinforcing steel bar meshes of different models is met; and meanwhile, the U-shaped steel bars are placed in parallel, the U-shaped steel bars are clamped one by one through the mechanical arm according to the intervals, the parallel straight steel bars are inserted into the U-shaped steel bars, and the lap joint stability of the U-shaped steel bar net and the accuracy of the welding position are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of steel bar processing technology, and more particularly to an automated production method for U-shaped steel mesh for box girder support. Background Technology

[0002] A box girder is a type of beam used in bridge engineering. It is hollow inside and has flanges on both sides of the upper part, resembling a box, hence the name.

[0003] The edges of the box girder are solid, while the interior is hollow. The hollow interior reduces the production and transportation costs of the box girder. However, the hollow structure concentrates the stress on the edges of the box girder. Therefore, the edges of the solid structure generally require a large number of steel bars to form a steel mesh for support. Since the external structure of the box girder is generally U-shaped, the steel mesh supporting the box girder is generally formed by welding U-shaped ring steel bars and longitudinal steel bars perpendicular to the U-shaped plane.

[0004] The U-shaped steel mesh used for box girder support is often processed manually or using assembly equipment, involving bending and welding of the steel bars in a single step. Currently, there is no established production method for U-shaped steel mesh used for box girder support. In practical applications, because the production of U-shaped steel mesh for box girder support in construction can only be broken down into several small, independent processes, which are then spliced ​​together. This results in a cumbersome, inefficient, and inconsistent processing method; furthermore, it cannot be produced continuously and is unsuitable for large-scale production.

[0005] In conclusion, there is an urgent need for an automated production method for U-shaped steel mesh used in box girder support to solve the above problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an automated production method for U-shaped steel mesh used in box girder support. This method solves the problems that in practical applications, the production of U-shaped steel mesh for box girder support in construction can only be broken down into several small processes, resulting in a cumbersome, inefficient, and inconsistent process; furthermore, it cannot be produced continuously and is unsuitable for large-scale production.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an automated production method for U-shaped steel mesh for box girder support, comprising the following steps: S1. Preparation of straight steel bars: Determine the length of the straight steel bars according to the length of the U-shaped steel mesh, and use a straightening machine to cut the steel bars of a fixed length into straight steel bars; S2. Preparation of U-shaped steel bars: Determine the size of the U-shaped steel bars according to the size of the U-shaped steel mesh; S3. Positioning of straight reinforcing bars: Position multiple parallel straight reinforcing bars separately; S4. Positioning of straight steel bars and U-shaped steel bars: Determine the number of U-shaped steel bars and the spacing between them according to the type of U-shaped steel bar mesh. Place the U-shaped steel bars in parallel according to the number. Use a robotic arm to clamp the U-shaped steel bars one by one according to the spacing and insert the parallel straight steel bars into the U-shaped steel bars. S5. Welding and fixing of straight bars and U-shaped bars: Transfer U-shaped bars and straight bars to the welding point respectively, and weld at the lap joint of straight bars and U-shaped bars.

[0008] In a preferred embodiment of the present invention, step S3 is specifically implemented by using multiple sets of parallel hollow sleeves to position the straight steel bars, thereby ensuring the position and parallelism of the straight steel bars.

[0009] In a preferred embodiment of the present invention, step S2 is specifically implemented by preparing the U-shaped steel bar by splicing and welding the inner U-shaped steel bar, the outer U-shaped steel bar, and the ring beam.

[0010] In a preferred embodiment of the present invention, step S2 is specifically implemented by preparing the U-shaped steel bar by splicing and welding the first trapezoidal steel bar, the second trapezoidal steel bar, and the ring beam.

[0011] In a preferred embodiment of the present invention, step S2 is specifically implemented by forming the U-shaped steel bar by continuously bending a single steel bar.

[0012] In a preferred embodiment of the present invention, the preparation of the U-shaped steel bar in step S2 by continuously bending a single steel bar specifically includes the following steps: S2.1. Use a straightening machine to cut the length of a single steel bar; S2.2. Bend the steel bars three times at 1 / 3 of their length to form a first parallelogram structure. S2.3. Bend the steel bar three times at 2 / 3 of its length to form a second parallelogram structure with the original steel bar. Bend the end away from the original steel bar twice and bend the end away from the original steel bar into an acute angle to form the first joint. S2.4 The steel bar segment closest to the first parallelogram structure is bent six times to form the outer contour of the U-shaped steel bar; the end away from the original steel bar is bent into an acute angle to form the second joint; S2.5 At this point, the first joint and the second joint are aligned; simultaneously, welding is performed at the alignment point of the first joint and the second joint to form a complete U-shaped steel bar.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. The present invention discloses an automated production method for U-shaped steel mesh for box girder support. This method involves setting up S1, preparation of straight steel bars; S2, preparation of U-shaped steel bars; S3, positioning of straight steel bars; S4, lap splicing and positioning of straight and U-shaped steel bars; and S5, welding and fixing of straight and U-shaped steel bars to form a structurally stable U-shaped steel mesh. The entire process from steel bars to U-shaped steel mesh is automated, resulting in high production efficiency. Simultaneously, it avoids manual intervention, and the resulting U-shaped steel mesh exhibits good consistency and high strength, making it suitable for continuous large-scale production.

[0014] 2. The present invention discloses an automated production method for U-shaped steel mesh for box girder support. This method determines the length of straight steel bars based on the length of the U-shaped steel mesh, the size of the U-shaped steel bars based on the size of the U-shaped steel mesh, and the quantity and spacing of the U-shaped steel bars based on the type of U-shaped steel mesh. This satisfies the production needs of different types and models of U-shaped steel mesh. Simultaneously, the U-shaped steel bars are placed parallel to each other according to the specified quantity. A robotic arm picks up the U-shaped steel bars one by one according to the spacing and inserts the parallel straight steel bars into the U-shaped steel bars. This method ensures user safety and the stability of the U-shaped steel mesh overlap, and improves the accuracy of the welding position.

[0015] 3. The automated production method of U-shaped steel mesh for box girder support presented in this invention can meet the needs of different users and usage environments by setting up a variety of different U-shaped steel bar preparation methods, and has strong adaptability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the process flow for an automated production method of U-shaped steel mesh for box girder support according to the present invention. Figure 2 This is a production flow diagram of the U-shaped steel mesh in the automated production method of U-shaped steel mesh for box girder support of the present invention; Figure 3 This is a three-dimensional structural diagram of the U-shaped steel bar in Embodiment 2 of the automated production method of U-shaped steel mesh for box girder support of the present invention; Figure 4 This is a schematic diagram of the process for preparing U-shaped steel bars in Embodiment 3 of the automated production method for U-shaped steel mesh for box girder support of the present invention.

[0017] In the diagram: 1. Straight steel bar; 2. U-shaped steel bar; 21. First trapezoidal steel bar; 22. Ring bar; 23. Second trapezoidal steel bar; 24. First parallelogram structure; 25. Second parallelogram structure; 26. First joint; 27. Second joint; 3. U-shaped steel mesh. Detailed Implementation

[0018] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes. Example 1

[0019] An automated production method for U-shaped steel mesh for box girder support is provided, which involves bending and welding the steel bars to prepare the U-shaped steel mesh 3. Figure 1 As shown, it includes the following steps: S1. Preparation of straight steel bar 1: Determine the length of straight steel bar 1 according to the length of U-shaped steel mesh 3, and use a straightening machine to cut the steel bar of fixed length into straight steel bar 1; Preparation of S2 and U-shaped steel bars 2: Determine the dimensions of U-shaped steel bars 2 based on the dimensions of U-shaped steel mesh 3; S3, Positioning of straight steel bars 1: Position the multiple parallel straight steel bars 1 respectively; S4. Positioning of straight steel bar 1 and U-shaped steel bar 2: Determine the number of U-shaped steel bars 2 and the spacing between U-shaped steel bars 2 according to the type of U-shaped steel bar mesh 3. Place the U-shaped steel bars 2 in parallel according to the number. Use a robot to clamp the U-shaped steel bars 2 one by one according to the spacing and insert the parallel straight steel bar 1 into the U-shaped steel bar 2. S5. Welding and fixing of straight steel bar 1 and U-shaped steel bar 2: Transfer U-shaped steel bar 2 and straight steel bar 1 to the welding point respectively, and weld at the lap joint of straight steel bar 1 and U-shaped steel bar 2.

[0020] The entire process from steel bars to U-shaped steel mesh 3 is automated, resulting in high production efficiency. At the same time, it avoids manual intervention, and the resulting U-shaped steel mesh 3 has good consistency and high strength, making it suitable for continuous large-scale production.

[0021] The length of the straight steel bar 1 is determined based on the length of the U-shaped steel mesh 3, the size of the U-shaped steel bar 2 is determined based on the size of the U-shaped steel mesh 3, and the quantity and spacing of the U-shaped steel bars 2 are confirmed based on the type of the U-shaped steel mesh 3, thus satisfying the production of different types and models of U-shaped steel mesh 3. At the same time, the U-shaped steel bars 2 are placed parallel according to the quantity, and a robotic arm is used to pick up the U-shaped steel bars 2 one by one, inserting the parallel straight steel bars 1 into the U-shaped steel bars 2. This ensures the safety of the user and the stability of the overlap of the U-shaped steel mesh 3, which helps to improve the accuracy of the welding position.

[0022] In a preferred embodiment of the present invention, step S3 is specifically implemented by using multiple sets of parallel hollow sleeves to position the straight steel bar 1, thereby ensuring the position and parallelism of the straight steel bar 1.

[0023] In a preferred embodiment of the present invention, step S2 is specifically implemented by preparing the U-shaped steel bar 2 by splicing and welding the inner U-shaped steel bar, the outer U-shaped steel bar, and the ring bar 22. Example 2

[0024] An automated production method for U-shaped steel mesh for box girder support is provided, which involves bending and welding the steel bars to prepare the U-shaped steel mesh 3. Figure 1 As shown, it includes the following steps: S1. Preparation of straight steel bar 1: Determine the length of straight steel bar 1 according to the length of U-shaped steel mesh 3, and use a straightening machine to cut the steel bar of fixed length into straight steel bar 1; Preparation of S2 and U-shaped steel bars 2: Determine the dimensions of U-shaped steel bars 2 based on the dimensions of U-shaped steel mesh 3; S3, Positioning of straight steel bars 1: Position the multiple parallel straight steel bars 1 respectively; S4. Positioning of straight steel bar 1 and U-shaped steel bar 2: Determine the number of U-shaped steel bars 2 and the spacing between U-shaped steel bars 2 according to the type of U-shaped steel bar mesh 3. Place the U-shaped steel bars 2 in parallel according to the number. Use a robot to clamp the U-shaped steel bars 2 one by one according to the spacing and insert the parallel straight steel bar 1 into the U-shaped steel bar 2. S5. Welding and fixing of straight steel bar 1 and U-shaped steel bar 2: Transfer U-shaped steel bar 2 and straight steel bar 1 to the welding point respectively, and weld at the lap joint of straight steel bar 1 and U-shaped steel bar 2.

[0025] The entire process from steel bars to U-shaped steel mesh 3 is automated, resulting in high production efficiency. At the same time, it avoids manual intervention, and the resulting U-shaped steel mesh 3 has good consistency and high strength, making it suitable for continuous large-scale production.

[0026] The length of the straight steel bar 1 is determined based on the length of the U-shaped steel mesh 3, the size of the U-shaped steel bar 2 is determined based on the size of the U-shaped steel mesh 3, and the quantity and spacing of the U-shaped steel bars 2 are confirmed based on the type of the U-shaped steel mesh 3, thus satisfying the production of different types and models of U-shaped steel mesh 3. At the same time, the U-shaped steel bars 2 are placed parallel according to the quantity, and a robotic arm is used to pick up the U-shaped steel bars 2 one by one, inserting the parallel straight steel bars 1 into the U-shaped steel bars 2. This ensures the safety of the user and the stability of the overlap of the U-shaped steel mesh 3, which helps to improve the accuracy of the welding position.

[0027] Unlike Embodiment 1, step S2 is specifically implemented in that the U-shaped steel bar 2 is prepared by splicing and welding the first trapezoidal steel bar 21, the second trapezoidal steel bar 23 and the ring bar 22. Example 3

[0028] An automated production method for U-shaped steel mesh for box girder support is provided, which involves bending and welding the steel bars to prepare the U-shaped steel mesh 3. Figure 1 As shown, it includes the following steps: S1. Preparation of straight steel bar 1: Determine the length of straight steel bar 1 according to the length of U-shaped steel mesh 3, and use a straightening machine to cut the steel bar of fixed length into straight steel bar 1; Preparation of S2 and U-shaped steel bars 2: Determine the dimensions of U-shaped steel bars 2 based on the dimensions of U-shaped steel mesh 3; S3, Positioning of straight steel bars 1: Position the multiple parallel straight steel bars 1 respectively; S4. Positioning of straight steel bar 1 and U-shaped steel bar 2: Determine the number of U-shaped steel bars 2 and the spacing between U-shaped steel bars 2 according to the type of U-shaped steel bar mesh 3. Place the U-shaped steel bars 2 in parallel according to the number. Use a robot to clamp the U-shaped steel bars 2 one by one according to the spacing and insert the parallel straight steel bar 1 into the U-shaped steel bar 2. S5. Welding and fixing of straight steel bar 1 and U-shaped steel bar 2: Transfer U-shaped steel bar 2 and straight steel bar 1 to the welding point respectively, and weld at the lap joint of straight steel bar 1 and U-shaped steel bar 2.

[0029] The entire process from steel bars to U-shaped steel mesh 3 is automated, resulting in high production efficiency. At the same time, it avoids manual intervention, and the resulting U-shaped steel mesh 3 has good consistency and high strength, making it suitable for continuous large-scale production.

[0030] The length of the straight steel bar 1 is determined based on the length of the U-shaped steel mesh 3, the size of the U-shaped steel bar 2 is determined based on the size of the U-shaped steel mesh 3, and the quantity and spacing of the U-shaped steel bars 2 are confirmed based on the type of the U-shaped steel mesh 3, thus satisfying the production of different types and models of U-shaped steel mesh 3. At the same time, the U-shaped steel bars 2 are placed parallel according to the quantity, and a robotic arm is used to pick up the U-shaped steel bars 2 one by one, inserting the parallel straight steel bars 1 into the U-shaped steel bars 2. This ensures the safety of the user and the stability of the overlap of the U-shaped steel mesh 3, which helps to improve the accuracy of the welding position.

[0031] Unlike Embodiment 1, step S2 is specifically implemented by forming the U-shaped steel bar 2 through continuous bending of a single steel bar, specifically including the following steps: S2.1. Use a straightening machine to cut the length of a single steel bar; S2.2, Bend the steel bars three times at 1 / 3 of their length to form a first parallelogram structure 24. S2.3. Bend the steel bar three times at 2 / 3 of its length to form a second parallelogram structure 25 with the original steel bar. Bend the end away from the original steel bar twice and bend the end away from the original steel bar into an acute angle to form the first joint 26. S2.4 The steel bar segment close to the first parallelogram structure 24 is bent six times to form the outer contour of the U-shaped steel bar 2; the end away from the original steel bar is bent into an acute angle to form the second joint 27. S2.5 At this time, the first joint 26 and the second joint 27 are matched; at the same time, welding is performed on the matching position of the first joint 26 and the second joint 27 to form a complete U-shaped steel bar 2.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated production method for U-shaped steel mesh for box girder support, used to prepare U-shaped steel mesh, comprising the following steps: S1. Preparation of straight steel bars (1): The length of the straight steel bars (1) is determined according to the length of the U-shaped steel mesh (3), and the steel bars of a fixed length are cut into straight steel bars (1) using a straightening machine. S2. Preparation of U-shaped steel bars (2): The size of U-shaped steel bars (2) is determined according to the size of U-shaped steel mesh (3); S3, Positioning of straight steel bars (1): Position the multiple parallel straight steel bars (1) respectively; S4. Lap joint positioning of straight steel bar (1) and U-shaped steel bar (2): Determine the number of U-shaped steel bars (2) and the spacing between U-shaped steel bars (2) according to the type of U-shaped steel bar mesh (3). Place the U-shaped steel bars (2) in parallel according to the number. Use a robot to clamp the U-shaped steel bars (2) one by one and insert the parallel straight steel bars (1) into the U-shaped steel bars (2). S5. Welding and fixing of straight steel bar (1) and U-shaped steel bar (2): transfer U-shaped steel bar (2) and straight steel bar (1) to the welding point respectively, and weld at the lap position of straight steel bar (1) and U-shaped steel bar (2).

2. The automated production method of U-shaped steel mesh for box girder support according to claim 1, characterized in that: The specific implementation of step S3 is to use multiple sets of parallel hollow sleeves to locate the position of the straight steel bar (1).

3. The automated production method of U-shaped steel mesh for box girder support according to claim 1, characterized in that: The specific implementation of step S2 is that the U-shaped steel bar (2) is prepared by splicing and welding inner U-shaped steel bar, outer U-shaped steel bar and ring bar (22).

4. The automated production method of U-shaped steel mesh for box girder support according to claim 1, characterized in that: The specific implementation of step S2 is that the U-shaped steel bar (2) is prepared by splicing and welding the first trapezoidal steel bar (21), the second trapezoidal steel bar (23) and the ring bar (22).

5. The automated production method of U-shaped steel mesh for box girder support according to claim 1, characterized in that: The specific implementation of step S2 is that the U-shaped steel bar (2) is formed by continuously bending a single steel bar.

6. The automated production method of U-shaped steel mesh for box girder support according to claim 5, characterized in that: The preparation of the U-shaped steel bar (2) in step S2, which is formed by continuously bending a single steel bar, specifically includes the following steps: S2.

1. Use a straightening machine to cut the length of a single steel bar; S2.

2. Bend the steel bars three times at 1 / 3 of their length to form a first parallelogram structure (24). S2.

3. Bend the steel bar three times at 2 / 3 position to form a second parallelogram structure with the original steel bar (25). Bend the end away from the original steel bar twice and bend the end away from the original steel bar into an acute angle to form the first joint (26). S2.4 The steel bar segment close to the first parallelogram structure (24) is bent six times to form the outer contour of the U-shaped steel bar (2); the end away from the original steel bar is bent into an acute angle to form the second joint (27). S2.5 At this time, the first joint (26) and the second joint (27) are matched; at the same time, the matching position of the first joint (26) and the second joint (27) can be welded to form a complete U-shaped steel bar (2).

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