Automatic positioning and adjustment device for synchronous welding of reinforcing cages

Abstract

This invention relates to the field of steel cage processing equipment in tunnel excavation, and in particular to an automatic positioning and adjustment device for synchronous welding of steel cages. It aims to solve the problems of low positioning accuracy, low construction efficiency, and high labor intensity in the existing technology for hoisting and positioning multiple rows of steel mesh. The invention includes a gantry crane for hoisting raw materials or finished products, an assembly frame for assembling raw materials into a convex top shape for finished products, and an adjustment mechanism for adjusting the position between single rows of steel bars. The advantages are: ensuring uniform spacing, high parallelism, and end alignment between multiple rows of steel mesh, while also possessing good adaptability to meet the installation requirements of multi-row steel mesh of different specifications.

Description

Technical Field

[0001] This invention relates to the field of automatic positioning and adjustment devices for synchronous welding of reinforcing cages, and in particular to an automatic positioning and adjustment device for synchronous welding of reinforcing cages. Background Technology

[0002] In tunnel construction, cases of welded steel reinforcement cages are rare; manual assembly is usually employed, and the installation quality directly affects the overall strength and stability of the structure. Currently, the installation of multi-row steel reinforcement mesh mainly relies on manual labor in conjunction with conventional lifting equipment, which has several drawbacks: during manual hoisting, multi-row steel reinforcement mesh is prone to misalignment and uneven spacing, leading to significant problems in subsequent welding; during positioning, multiple people need to repeatedly measure and adjust using simple measuring tools, which not only consumes a lot of manpower and resources but also makes it difficult to ensure the parallelism and splicing accuracy between multiple rows of mesh; the end alignment error of adjacent meshes is large, affecting the integrity of the overall structure; at the same time, manual operation is labor-intensive, and the safety risks are high when working at heights or installing large meshes. Therefore, the hoisting and positioning of multi-row steel reinforcement mesh suffers from low efficiency, poor accuracy, and insufficient safety. Summary of the Invention

[0003] The purpose of this invention is to solve the defects of low positioning accuracy, low construction efficiency, and high labor intensity in the hoisting and positioning of multi-row steel mesh in the prior art, and to provide a device that can realize automated hoisting and precise positioning of multi-row steel mesh. The device should be able to ensure uniform spacing, high parallelism, and end alignment between multi-row steel mesh, and at the same time have good adaptability to meet the installation requirements of multi-row steel mesh of different specifications.

[0004] The specific solution of this invention is:

[0005] Design an automatic positioning and adjustment device for synchronous welding of reinforcing cages, comprising a gantry crane for lifting raw materials or finished products, a Z-shaped assembly frame for assembling raw materials into finished products, and an adjustment mechanism for adjusting the position between single rows of reinforcing bars.

[0006] The gantry hoisting device includes a gantry-type hoisting frame and a mechanical claw installed on the crossbeam of the gantry-type hoisting frame. The working space of the mechanical claw covers the assembly area of ​​the automatic positioning and adjustment device for synchronous welding of the reinforcing cage.

[0007] The zigzag assembly frame includes constraint rods that constrain multiple assembly degrees of freedom in the transverse, longitudinal, and diagonal directions. Specifically, it includes a П-shaped positioning prism located in the middle to constrain the movement of the reinforcing bars in a defined surface space, mesh positioning tracks located at the bottom ends of the П-shaped positioning prism to constrain the movement of the reinforcing bars in a defined linear space, and an end positioning mechanism located at the other end of the mesh positioning track to restrict the movement of the center of gravity of the single row of reinforcing bars.

[0008] The adjustment mechanism includes a support for the positioning track of the mesh, and an adjustment component mounted on the support for adjusting the spatial spacing between adjacent lines.

[0009] In a specific implementation, the support includes multiple parallel H-beams, and the adjustment component includes multiple clamping assemblies installed on each H-beam. The bottom of the clamping assembly is slidably installed on the H-beam and forms a moving pair with the H-beam, and the top is clamped between the mesh positioning track.

[0010] In another specific implementation, the support includes multiple parallel H-beams, the adjustment component includes a rhomboid parallelogram rod assembly, the nodes of the parallelogram rod assembly are set at the ends of each mesh positioning track, the parallelogram rod assembly is also provided with a power component to drive its stretching or contraction, and rollers are provided on the contact lines of the corresponding H-beams and the mesh positioning tracks, the rollers are equipped with locking components to control their rolling or locking.

[0011] In another specific implementation, the support includes multiple parallel H-beams, and the H-beams are provided with multiple limiting grooves for mounting the mesh positioning track.

[0012] The П-shaped positioning prism is provided with a slot and a seat to form an assembly relationship. After the slot is installed on the seat, the gap in the middle of the seat can further constrain the reinforcing bar.

[0013] The end of the mesh positioning track is provided with an arc-shaped clamping piece corresponding to the shape and position requirements of the mesh end design. The end positioning mechanism is installed on the top of the arc-shaped clamping piece. The end positioning mechanism is provided with an arc-shaped clip. The arc-shaped clip and the end of the assembly material are fixed together in a clamp-like manner. The top of the arc-shaped clip is provided with a baffle to limit the end of the assembly material. The end positioning mechanism is equipped with a positioning reference plate and multiple sets of distance detection sensors. The positioning reference plate serves as a reference for aligning the ends of multiple rows of steel mesh. The signal transmitting end detected by the distance detection sensor is aligned with the corresponding receiving end on the adjacent end positioning mechanism.

[0014] A lifting component is also provided between the mesh positioning track and the limiting groove. The bottom of the lifting component is located in the limiting groove, and the top is fixed to the bottom of the mesh positioning track. The power of the lifting component includes hydraulic lifting, or screw and nut type lifting, or cam linkage type lifting. The cooperation between the lifting component and the mesh positioning track is also designed with an adjustment space of ±50mm.

[0015] The drive mechanism connected to the mechanical gripper includes a variable frequency power source to achieve different clamping power depending on the thickness of the mesh; the gantry-type hoisting frame is also equipped with a welding mechanism to achieve synchronous welding during the assembly process.

[0016] The slots and seats are provided with an elastic buffer layer on the inner side to limit and reduce the vibration of the steel mesh.

[0017] The adjustment mechanism also includes a fine-tuning device, which includes a slot driven by a micro motor. The slot contacts the card holder and, driven by the micro motor, applies pressure to move the card holder.

[0018] The beneficial effects of this invention are as follows:

[0019] The automatic positioning and adjustment device for synchronous welding of steel cages automates the entire installation process and adjustments at each stage, reducing the labor intensity for workers. Throughout the process, real-time measurement of electronic components ensures high-precision installation and meets design requirements.

[0020] —The adjustment mechanism includes coarse adjustment and fine adjustment. Coarse adjustment is mainly to ensure the adjustment of different design requirements in different construction situations, while fine adjustment is for situations where the steel reinforcement raw materials themselves are deformed. With the combined effect of the two adjustment methods, the design requirements can be largely met, while reducing the requirements for raw materials and thus reducing processing costs.

[0021] The entire set of equipment is equipped with multiple sets of constraints and adjustments in different directions, which can realize the construction of steel cages of most design specifications. Then, combined with welding equipment, it can efficiently realize the synchronous automatic welding of steel cages. After fine-tuning with the help of pressure in the later stage, it can directly process into a steel cage that meets the high-precision design requirements. Attached Figure Description

[0022] Figure 1 This is a front view of the structure of the present invention;

[0023] Figure 2 This is a top view of the structure of the present invention;

[0024] Figure 3 This is a left view of the structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the adjustment method in Embodiment 1 of the present invention;

[0026] Figure 5 This is a schematic diagram of the adjustment method in Embodiment 2 of the present invention;

[0027] Figure 6 This is a schematic diagram of the adjustment method in Embodiment 3 of the present invention;

[0028] Figure 7This is a perspective view of the structure of the present invention;

[0029] Figure 8 This is a perspective view of another structure in this invention;

[0030] Figure 9 This is a structural diagram of the card holder and card slot;

[0031] Figure 10 This is a schematic diagram of the lifting component;

[0032] Figure 11 This is a schematic diagram of the mounting components in the adjustment parts;

[0033] Figure 12 This is a diagram showing the clips, buckles, and blocks for installing the fine-tuning device.

[0034] For clear view Figure 1-7 The intermediate adjustment and fine-tuning components are not shown.

[0035] The components in the diagram are named as follows: 1. Gantry crane device; 2. Mechanical claw; 3. Welding mechanism; 4. П-shaped positioning prism; 5. Parallelogram rod assembly; 6. I-beam; 7. Mesh positioning track; 8. End positioning mechanism; 9. Clamping assembly; 10. Arc-shaped clamping piece; 11. Clamping slot; 12. Clamping seat; 13. Lifting component; 14. Limiting groove; 15. Micro motor; 18. Clamps and buckles; 20. Raw material steel bar; 25. Roller; 26. Roller shaft. Detailed Implementation

[0036] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention. Example 1

[0037] An automatic positioning and adjustment device for synchronous welding of reinforcing cages, see [link / reference]. Figure 1 ,

[0038] Automatic positioning and adjustment device for synchronous welding of reinforcing cages; gantry crane device for lifting raw materials or finished products; 1. Z-shaped assembly frame for assembling raw materials into finished products; and adjustment mechanism for adjusting the position between single rows of reinforcing bars.

[0039] The gantry hoisting device 1 includes a gantry-type hoisting frame and a mechanical claw 2 installed on the crossbeam of the gantry-type hoisting frame. The working space of the mechanical claw 2 covers the assembly area of ​​the automatic positioning and adjustment device for synchronous welding of the reinforcing cage.

[0040] The zigzag assembly frame includes constraint rods that constrain multiple assembly degrees of freedom in the transverse, longitudinal, and diagonal directions. Specifically, it includes a П-shaped positioning prism 4 located in the middle to constrain the movement of the reinforcing bars in a defined surface space; mesh positioning tracks 7 located at the bottom ends of both sides of the П-shaped positioning prism 4 to constrain the movement of the reinforcing bars in a defined linear space; and an end positioning mechanism 8 located at the other end of the mesh positioning track 7 to restrict the movement of the center of gravity of the single row of reinforcing bars.

[0041] The adjustment mechanism includes a support for the mesh positioning track 7, and an adjustment component installed on the support to adjust the spatial spacing between adjacent lines.

[0042] The support includes multiple parallel H-beams 6, and the adjustment component includes multiple clamping assemblies 9 installed on each H-beam 6. The bottom of the clamping assembly 9 is slidably installed on the H-beam 6 and forms a moving pair with the H-beam 6, and the top is clamped to the mesh positioning track 7.

[0043] The П-shaped positioning prism 4 is provided with a slot 11 and a seat 12 that form an assembly relationship. After the slot 11 is installed on the seat 12, the central gap of the seat 12 can form a further constraint on the reinforcing bar.

[0044] The end of the mesh positioning track 7 is provided with an arc-shaped clamping piece 10 corresponding to the shape and position requirements of the mesh end design. The end positioning mechanism 8 is installed on the top of the arc-shaped clamping piece 10. The end positioning mechanism 8 is provided with an arc-shaped clamp. The arc-shaped clamp and the end of the assembly material are fixed together in a clamping manner. The top of the arc-shaped clamp is provided with a baffle to limit the end of the assembly material. The end positioning mechanism 8 is equipped with a positioning reference plate and multiple sets of distance detection sensors. The positioning reference plate serves as the reference for aligning the ends of multiple rows of steel mesh. The signal transmitting end detected by the distance detection sensor is aligned with the corresponding receiving end on the adjacent end positioning mechanism 8.

[0045] The drive mechanism connected to the mechanical claw 2 includes a variable frequency power source to achieve different clamping power depending on the thickness of the mesh; the gantry crane is also equipped with a welding mechanism 3 to achieve synchronous welding during the assembly process.

[0046] The inner sides of the slot 11 and the seat 12 are provided with an elastic buffer layer to limit the position of the steel mesh and reduce vibration.

[0047] The adjustment mechanism also includes a fine-tuning device, which includes a slot 11 driven by a micro motor 15. The slot 11 contacts the mounting base 12 and, driven by the micro motor 15, applies pressure to move the mounting base 12. The I-beam 6 serves as the basic support component of the equipment, supporting the entire positioning system and the multiple rows of steel mesh to be installed. A mesh positioning track 7 is parallel to its top, and the length and number of the mesh positioning tracks 7 match the arrangement requirements of the multiple rows of steel mesh. The steel mesh hoisting mechanism consists of a lifting device, multiple sets of lifting tools, and a posture monitoring unit. The lifting device can simultaneously or individually lift and lower multiple rows of steel mesh. The posture monitoring unit monitors the horizontal status of each row of steel mesh in real time to ensure a smooth and tilt-free hoisting process.

[0048] In practical implementation, multiple sets of installation areas can be provided on the U-shaped assembly frame. Each installation area has multiple clips, buckles, and blocks 18 corresponding to a row of steel mesh. The opening size of these clips is adapted to the thickness of the steel mesh. They can be moved to a designated position along the mesh positioning track 7 to laterally limit the two sides of the corresponding row of steel mesh, preventing the multiple rows of steel mesh from shifting left and right in the plane.

[0049] The end positioning mechanism 8 is fixed to both ends of the bottom support beam, i.e., the I-beam 6. It includes a positioning reference plate and multiple sets of distance detection sensors. The positioning reference plate serves as the benchmark for aligning the ends of the multiple rows of steel mesh. The distance detection sensors correspond to each row of steel mesh and are used to detect the distance between the end of the mesh and the positioning reference plate, ensuring that the ends of the multiple rows of steel mesh are aligned. Multiple clips, buckles, and blocks 18 are mainly used for combining and fixing the steel bars within the mesh positioning track 7.

[0050] With the coordinated operation of each piece of equipment, multiple rows of steel mesh are finely adjusted within a range of ±50mm in the plane to ensure the overall positional accuracy of the multiple rows of steel mesh. Example 2

[0051] The principle of this embodiment is the same as that of embodiment 1, but the specific difference is that in the specific implementation of the other scheme, the support includes multiple parallel H-beams 6, the adjusting component includes a rhomboid parallelogram rod assembly 5, the nodes of the parallelogram rod assembly 5 are set at the ends of each mesh positioning track 7, the parallelogram rod assembly 5 is also provided with a power component to drive its stretching or contraction, and rollers 25 are provided on the contact line between the corresponding H-beams 6 and the mesh positioning track 7, the rollers 25 are equipped with locking components to control their rolling or locking. Example 3

[0052] The principle of this embodiment is the same as that of Embodiment 1, but the specific difference lies in that: the support includes multiple parallel H-beams 6, and each H-beam 6 is provided with a plurality of limiting grooves 14 for engaging the mesh positioning track 7. During operation, the mesh positioning track 7 is adjusted by controlling the limiting grooves 14. Specifically, a lifting component 13 is also provided between the mesh positioning track 7 and the limiting grooves 14. The bottom of the lifting component 13 is located within the limiting groove 14, and the top is fixed to the bottom of the mesh positioning track 7. The power of the lifting component 13 includes hydraulic lifting, screw and nut lifting, or cam linkage lifting. The cooperation between the lifting component 13 and the mesh positioning track 7 is also designed with an adjustment space of ±50mm. In specific construction, the limiting grooves 14 can also achieve a groove-like structure by intermittently adding pads above the H-beams 6.

[0053] In this embodiment, the vertical movement of the mesh positioning track 7 is preferred, while the horizontal movement is achieved by selecting a few units from multiple installation units to initially determine the distance.

[0054] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic positioning and adjustment device for synchronous welding of reinforcing cages, characterized in that: Automatic positioning and adjustment device for synchronous welding of steel cages; gantry hoisting device for lifting raw materials or finished materials (1), zigzag assembly frame for assembling raw materials into finished materials, and adjustment mechanism for adjusting the position between single rows of steel bars; The gantry hoisting device (1) includes a gantry-type hoisting frame and a mechanical claw (2) installed on the crossbeam of the gantry-type hoisting frame. The working space of the mechanical claw (2) covers the assembly area of ​​the automatic positioning and adjustment device for synchronous welding of the reinforcing cage. The zigzag assembly frame includes constraint rods that constrain multiple assembly degrees of freedom in the transverse, longitudinal, and diagonal directions. Specifically, it includes a П-shaped positioning prism (4) located in the middle to constrain the movement of the reinforcing bars in a defined surface space; mesh positioning tracks (7) located at the bottom ends of the П-shaped positioning prism (4) to constrain the movement of the reinforcing bars in a defined linear space; and an end positioning mechanism (8) located at the other end of the mesh positioning track (7) to restrict the movement of the center of gravity of the single row of reinforcing bars. The adjustment mechanism includes a support for the mesh positioning track (7) and an adjustment component installed on the support to adjust the spacing between adjacent linear spaces. The support includes multiple parallel H-beams (6), and the adjustment component includes multiple clamping assemblies (9) installed on each H-beam (6). The bottom of the clamping assembly (9) is slidably installed on the H-beam (6) and forms a moving pair with the H-beam (6), and the top is clamped to the mesh positioning track (7). Alternatively, the support may include multiple parallel H-beams (6), the adjustment component may include a rhomboid parallelogram rod assembly (5), the nodes of the parallelogram rod assembly (5) may be located at the ends of each mesh positioning track (7), the parallelogram rod assembly (5) may also be provided with a power component that drives it to stretch or contract, and rollers (25) may be provided on the contact lines of the corresponding H-beams (6) and mesh positioning tracks (7), the rollers (25) may be provided with locking components to control their rolling or locking.

2. The automatic positioning and adjustment device for synchronous welding of reinforcing cages as described in claim 1, characterized in that: The support includes multiple parallel H-beams (6), and the H-beams (6) are provided with multiple limiting grooves (14) for mounting the mesh positioning track (7).

3. The automatic positioning and adjustment device for synchronous welding of reinforcing cages as described in any one of claims 2, characterized in that: The П-shaped positioning prism (4) is provided with a slot (11) and a seat (12) to form an assembly relationship. After the slot (11) is installed on the seat (12), the gap in the middle of the seat (12) can form a further constraint on the reinforcing bar.

4. The automatic positioning and adjustment device for synchronous welding of reinforcing cages as described in claim 3, characterized in that: The end of the mesh positioning track (7) is provided with an arc-shaped clamping piece (10) corresponding to the shape and position requirements of the mesh end design. The end positioning mechanism (8) is installed on the top of the arc-shaped clamping piece (10). The end positioning mechanism (8) is provided with an arc-shaped clamp. The arc-shaped clamp and the end of the assembly material are fixed together with a clamp. The top of the arc-shaped clamp is provided with a baffle to limit the end of the assembly material. The end positioning mechanism (8) is equipped with a positioning reference plate and multiple sets of distance detection sensors. The positioning reference plate serves as the reference for aligning the ends of multiple rows of steel mesh. The signal transmitting end detected by the distance detection sensor is aligned with the corresponding receiving end on the adjacent end positioning mechanism (8).

5. The automatic positioning and adjustment device for synchronous welding of reinforcing cages as described in claim 4, characterized in that: A lifting component (13) is also provided between the mesh positioning track (7) and the limiting groove (14). The bottom of the lifting component (13) is located in the limiting groove (14), and the top is fixed to the bottom of the mesh positioning track (7). The power of the lifting component (13) includes hydraulic lifting, screw and nut type lifting, or cam linkage type lifting. The cooperation between the lifting component (13) and the mesh positioning track (7) is also designed with an adjustment space of ±50mm.

6. The automatic positioning and adjustment device for synchronous welding of reinforcing cages as described in claim 5, characterized in that: The drive mechanism connected to the mechanical claw (2) includes a variable frequency power source to achieve different clamping power determined by different mesh thicknesses; the gantry crane is also equipped with a welding mechanism (3) to achieve synchronous welding during assembly.

7. The automatic positioning and adjustment device for synchronous welding of reinforcing cages as described in claim 6, characterized in that: The inner sides of the slot (11) and the seat (12) are provided with an elastic buffer layer to limit and reduce the vibration of the steel mesh.

8. The automatic positioning and adjustment device for synchronous welding of reinforcing cages as described in claim 7, characterized in that: The adjustment mechanism also includes a fine-tuning device, which includes a slot (11) driven by a micro motor (15). The slot (11) contacts the card holder (12) and, driven by the micro motor (15), applies pressure to move the card holder (12).

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