Grid arch frame machining tool
By designing grid arch processing tooling for fixed stations and positioning columns, the safety risks and high costs of the round bending machine when bending the main ribs are solved, saving equipment costs and labor costs are achieved, and the processing process is simplified.
Patent Information
- Application Number
- CN202420524892.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-03-19
AI Technical Summary
In the prior art, when the main ribs of the grid arch are curved in an arc shape, there are problems of safety risks and high costs.
A grid arch machining tooling is designed, including a shaping station and a positioning column. The main ribs are clamped through the positioning columns to present the arc shape required for the design, and then the Z-bars are welded to fix the shape of the main ribs.
The round bending machine was cancelled, saving equipment costs and labor costs, reducing safety risks and maintenance costs, simplifying the processing process, and improving processing efficiency.
Smart Images
Figure CN222608500U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of tunnel construction device processing, in particular to a grid arch frame processing tool. Background Art
[0002] As an initial support for tunnel arches, grid arches are often used in the construction of highways, railway tunnels, and mine tunnels. Grid arches are generally made of steel bars, which are made into individual units according to a certain curvature and length, and then installed at the construction site. In order to ensure the stability of the arch or the special requirements of support, the grid arch includes main bars, Z-shaped bars, turn bars, angle steel connecting plates, etc. Among them, since the arch has a certain curvature, in the prior art, a steel bar bending machine is first used to bend the main bars so that the main bars have a set bending curvature, and then the Z-shaped bars are welded to two adjacent main bars at a welding station located on the ground to form a semi-finished product of the grid arch. Finally, the two semi-finished products are welded and assembled together at the splicing station using Z-shaped bars, and turn bars are put on at the same time, and angle steel connecting plates are welded at both ends to form the arched part of the grid arch.
[0003] In the above-mentioned operation of bending the main reinforcement with a round bending machine, the following problems will arise: 1. The requirements for the operator are relatively high, and they need to have certain operating experience and be familiar with the material and specifications of the steel bars; 2. The machine has certain safety risks after operation, and the processing personnel need to take certain protective measures such as wearing protective equipment and setting up warning signs to reduce the risk; 3. The round bending machine requires regular maintenance and timely replacement and repair if any problems are found; 4. Since the grid arch frames are mostly used in tunnels, the main reinforcement has a longer length, so the workstation of the round bending machine when bending the main reinforcement also occupies a larger area; 5. Before the formal processing of the round bending machine, the main reinforcement needs to be used for debugging until the design curvature requirements are met, which will cause the main reinforcement to be lost before the round bending machine is adjusted.
[0004] In summary, using a circular bending machine to bend the main reinforcement of the lattice arch frame into an arc shape will bring about safety risks and high costs (such as labor costs, equipment costs, work station costs, loss costs, etc.). Utility Model Content
[0005] The utility model aims to provide a grid arch frame processing tool to solve the problems of safety risk and high cost when a round bending machine is used in the prior art to bend the main reinforcement of the grid arch frame into an arc shape.
[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a grid arch frame processing tool, including a shaping station, at least two groups of positioning columns are arranged on the surface of the station, each group of positioning columns is arranged in sequence along the longitudinal direction, each group of positioning columns is divided into two rows, and the two rows of positioning columns are arc-shaped and have the same curvature.
[0007] The principle of this scheme is: the general production process design idea of the grid arch frame is to first prepare the various parts required for the arch frame, such as the main reinforcement bent into the required arc, the Z-shaped Z-shaped reinforcement, the turn reinforcement of the required size, etc., and then assemble them step by step according to the idea of convenient processing and assembly. Therefore, it is necessary to use a round bending machine to bend the main reinforcement first under this idea. In order to reduce the safety risks and related costs of the round bending machine, it seems that the only way to achieve the goal is to control and improve its process. However, in this scheme, the idea that the parts are already formed during assembly is broken out. Considering that the length of the arched part of the grid arch frame is relatively long, the length of the main reinforcement before processing is correspondingly longer. Therefore, this main reinforcement itself has a certain elasticity. If a certain external force is applied to it, this main reinforcement can easily present a certain curvature. If it is fixed and shaped, it can keep the required shape for a long time. To this end, this solution designs a shaping station, and at least two groups of positioning columns are set on the surface of the station. Each group of positioning columns clamps the main reinforcement between the two rows of positioning columns through two rows of positioning columns arranged in an arc shape with the same curvature, so as to limit the main reinforcement and temporarily make the main reinforcement present the desired arc shape. Then, by welding the Z-shaped reinforcement between the two main reinforcements, the two main reinforcements and the Z-shaped reinforcement are shaped together to form a semi-finished product. After the semi-finished product is removed from the station, the two main reinforcements will still maintain the desired arc shape due to the connection and fixing effect of the Z-shaped reinforcement.
[0008] The beneficial effect of this solution is that the round bending machine in the prior art is eliminated, and the
[0009] 1. Save equipment costs;
[0010] 2. Save the cost of equipment maintenance and repair in the later stage;
[0011] 3. No equipment operator is required, which saves labor costs and avoids safety risks;
[0012] 4. The step of bending the main reinforcement is omitted, which simplifies the processing process and improves the processing efficiency;
[0013] 5. Eliminate the operating station of the round bending machine, effectively reducing the cost of the factory;
[0014] 6. Eliminate the debugging steps of the round bending machine and reduce the loss of steel bars.
[0015] Preferably, as an improvement, it further comprises a positioning track, wherein the positioning track is located between two rows of positioning columns in the same group, and the positioning track and the rows of positioning columns are in an arc shape with the same arc.
[0016] In this solution, after the main reinforcement is placed between two rows of positioning columns, since the positioning columns and the main reinforcement are in point contact, if the distance between the positioning columns in the same row is far, the main reinforcement may deviate from the required design path due to stress. Whether the main reinforcement is in place can be judged by checking whether it is on the positioning track, which helps to ensure processing accuracy and improve the yield rate.
[0017] Preferably, as an improvement, two rows of positioning posts in the same group are staggered.
[0018] In this solution, compared with the design of two rows of locating columns corresponding to each other, this design can use fewer locating columns to achieve the purpose of keeping the main reinforcement in the required arc shape.
[0019] Preferably, as an improvement, the positioning column is detachably mounted on the surface of the shaping station.
[0020] In this solution, when the thickness of the main reinforcement or the spacing between adjacent main reinforcements changes, the positioning column can be disassembled and re-fixed to meet various design requirements and improve the flexibility of the shaping station.
[0021] Preferably, as an improvement, it further comprises positioning plates, which are located at both ends of each group of positioning columns.
[0022] In this solution, designing positioning plates at both ends of each group of positioning columns can ensure the alignment of the main reinforcements, which helps to improve the quality of the semi-finished products.
[0023] Preferably, as an improvement, the positioning plate is detachably mounted on the surface of the molding station.
[0024] In this solution, when the length of the arched part of the grid arch frame changes, the positioning plate can be removed and re-fixed to meet the design requirements of different lengths, thereby improving the flexibility of the tooling.
[0025] Preferably, as an improvement, the shaping station is a workbench, and one or both sides of the workbench along the length direction of the arc presented by each group of positioning columns are arc-shaped.
[0026] In this solution, the shaping station is designed as a workbench so that the processing personnel can operate while standing or sitting. At the same time, the workbench is designed to be arc-shaped on one or both sides along the length direction of each group of positioning columns so that the processing personnel can always maintain a convenient operating distance from each group of positioning columns, which conforms to the design concept of ergonomics.
[0027] Preferably, as an improvement, it further comprises a supporting portion, wherein the supporting portion is located between two adjacent groups of positioning columns.
[0028] In this solution, because the Z-shaped reinforcement of the lattice arch frame is generally thinner than the main reinforcement, the support part is designed between two adjacent groups of positioning columns to support the Z-shaped reinforcement when welding the Z-shaped reinforcement on the main reinforcement, so that the processing personnel do not need to lift the Z-shaped reinforcement during welding but only need to hold it, which facilitates the operation of the processing personnel.
[0029] Preferably, as an improvement, the sum of the height of the support portion and the rib radius of the Z-shaped rib of the grid arch is equal to the radius of the main rib of the grid arch.
[0030] In this solution, this design can make the center of the Z-shaped rib and the center of the main rib on the same horizontal plane, which facilitates processing personnel to perform precise welding and reduces welding eccentricity and the safety hazards it brings.
[0031] Preferably, as an improvement, the support portions are strip-shaped and are 2 in number, and are horizontally laid on the surface of the shaping station along the length direction of the arc formed by each group of positioning columns.
[0032] In this solution, two strip-shaped support parts are designed, on which the Z-shaped ribs can be placed horizontally, eliminating the need for processing personnel to hold them with their hands to keep them horizontal during welding, thereby facilitating operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 This is a schematic diagram of the top structure of Example 1 of the utility model.
[0034] Figure 2 It is a schematic diagram of the top view of the structure with main reinforcement of Example 1 of the utility model.
[0035] Figure 3 It is a schematic diagram of the top view of the structure with main reinforcement and Z-shaped reinforcement of Example 1 of the utility model. DETAILED DESCRIPTION
[0036] The following is further described in detail through specific implementation methods:
[0037] The reference numerals in the drawings of the specification include: a workbench 1 , a positioning column 2 , a positioning rail 3 , a positioning plate 4 , a main rib 5 , a Z-shaped rib 6 , and a support bar 7 .
[0038] Example 1
[0039] Basically as attached Figure 1As shown: a lattice arch frame processing tool, including a shaping station for fixing the shape of the main reinforcement of the grid arch frame, at least two groups of positioning columns 2 are arranged on the surface of the station, one group of positioning columns is used to clamp a main reinforcement 5 of the grid arch frame, here, technical personnel in this field can design an odd group of positioning columns greater than 1 to clamp the arch frame with an odd number of main reinforcements, and can also design an even group of positioning columns to clamp the arch frame with an even number of main reinforcements, or clamp several arch frames with even or odd numbers of main reinforcements at the same time; each group of positioning columns 2 is arranged longitudinally in sequence, each group of positioning columns 2 is divided into two rows, and the two rows of positioning columns 2 are in an arc shape with the same curvature, and this arc shape is the shape that the main reinforcement 5 of the grid arch frame needs to present in the end.
[0040] In actual processing, the processing personnel only need to place the main reinforcement 5 between the two rows of positioning columns 2 in the same group. This is because the main reinforcement 5 is long, so the main reinforcement 5 itself has a certain elasticity. Under the action of external force, it can easily present a certain curvature. Therefore, placing the main reinforcement 5 between the two rows of positioning columns 2 in the same group can achieve the effect of fixing the main reinforcement 5 and making the main reinforcement 5 temporarily present the desired arc shape, such as Figure 2 shown.
[0041] In order to keep the main reinforcement 5 in this arc shape, a Z-shaped reinforcement 6 is welded between the two main reinforcements 5. Figure 3 As shown, the two main ribs 5 are shaped together to form a semi-finished product. After the semi-finished product is removed from the workstation, the two main ribs 5 will still maintain this arc shape due to the connection and fixing effect of the Z-shaped ribs 6.
[0042] From the description of the above technical solution, it can be seen that this solution eliminates the round bending machine equipment in the prior art. The processing personnel do not need to use the round bending machine to bend the main reinforcement 5 first, but directly use the positioning column 2 to temporarily make the main reinforcement 5 present the arc shape required by the design, and then weld the Z-shaped reinforcement 6 and use its connection and fixing function to finally shape the main reinforcement 5. Therefore, compared with the prior art, this solution can simplify the processing process, save equipment costs, equipment operator costs, plant costs, equipment debugging loss costs, equipment maintenance and repair costs, reduce safety risks in equipment operation, etc.
[0043] In this solution, the size, shape, height, material, etc. of the positioning column 2 are not specifically limited in this embodiment, as long as they can play a role in limiting and positioning the main ribs 5. However, regarding the fixing method of the positioning column 2 on the surface of the shaping station, it is preferred that the positioning column 2 is designed to be detachably installed on the surface of the shaping station. This is because when the thickness of the main ribs 5 or the spacing between adjacent main ribs 5 changes, the processing personnel can remove the positioning column 2, adjust the position and re-fix it to meet various design requirements in actual applications, which helps to improve the flexibility of the shaping station.
[0044] In actual processing, since the positioning column and the main rib are in point contact, if the distance between the positioning columns 2 in the same row is far, the main rib 5 may slightly deviate from the required path under the stress of the main rib 5 itself. Therefore, as a further improvement, a positioning track 3 is designed between the two rows of positioning columns 2 in the same group, such as Figure 1 After placing the main reinforcement 5 on two rows of positioning columns 2, observe whether the main reinforcement 5 is on the positioning track 3. If so, it means that the main reinforcement 5 is in place; if not, the processing personnel can use additional positioning columns 2 or other methods to ensure that the main reinforcement 5 is on the positioning track 3 to ensure processing accuracy, improve the product yield rate, and reduce the scrap rate.
[0045] In addition, regarding the number and position of the two rows of positioning columns 2 in the same group, the number of the two rows of positioning columns can be the same or different; the two rows of positioning columns can be distributed one by one or staggered, which is not limited in this embodiment, as long as the two rows of positioning columns can make the main reinforcement 5 present the arc shape required by the design. Preferably, the two rows of positioning columns in the same group are staggered, such as Figure 1 Compared with the design of two rows of positioning columns corresponding to each other, this design can use fewer positioning columns 2 to achieve the purpose of keeping the main reinforcement 5 in the required arc shape. This is because the main reinforcement 5 has its own rigidity. At a certain position of the arc shape, the positioning column 2 only needs to apply a limiting force to one side of the main reinforcement 5 to achieve the limiting effect.
[0046] In actual processing, the main reinforcement has been cut into the required length of the arch frame before being placed in the positioning column. At this time, the processing personnel only need to place the main reinforcement in the positioning column. However, if the two main reinforcements to be welded together are not aligned at both ends, it will affect the subsequent connection and fixation of the arched part of the arch frame with other parts. Therefore, as a further improvement, positioning plates 4 are designed at both ends of each group of positioning columns, such as Figure 1 As shown, ensure that both ends of the main reinforcement 5 are aligned to improve the quality of the semi-finished product.
[0047] At the same time, regarding the fixing method of the positioning plate 4, it is preferably designed that the positioning plate 4 is detachably installed on the surface of the molding station. When the length of the arched part of the grid arch frame changes, the processing personnel can remove the positioning plate 4, adjust the position and re-fix it to meet various design requirements in actual applications. This helps to improve the flexibility of the molding station.
[0048] In actual applications, since the arched portion of the grid arch is relatively long, the processing personnel need to concentrate on their work for a long time when welding the Z-shaped rib 6 to two adjacent main ribs 5. For example, if the processing personnel squat on the ground to perform welding as in the prior art, they may easily suffer from leg numbness, inconvenience in taking things or changing positions, which is not ergonomic. As a further improvement, the shaping station is designed to be a workbench 1, so that the processing personnel can sit or stand to perform operations such as positioning and welding, and it is also convenient to take things or change positions. In addition, since the main rib 5 is in a long arc shape at the shaping station, if the workbench 1 is a square, a part of the main rib 5 will be far away from the processing personnel, which is inconvenient for them to perform operations such as welding. Therefore, as a further improvement, the workbench 1 is designed to be arc-shaped on one or both sides along the length direction of the arc of each group of positioning columns 2. Figure 1 As shown, this figure shows that one side of the workbench 1 is arc-shaped, so that the processing personnel can maintain a suitable distance from each positioning group along the arc-shaped edge, which is convenient for the processing personnel to operate the main reinforcement 5 and the Z-shaped reinforcement 6, and conforms to the design concept of ergonomics.
[0049] At the same time, when the processing personnel weld the Z-shaped rib 6 to the main rib 5, since the size of the Z-shaped rib 6 is generally smaller than the main rib 5, the processing personnel need to hold the Z-shaped rib 6 by hand during the welding process, which increases the difficulty of welding and affects the stability of welding. Therefore, as an improvement, a support part 7 is provided between two adjacent groups of positioning columns to support the Z-shaped rib 6, so that the processing personnel only need to hold the Z-shaped rib 6 during welding, which is convenient for operation.
[0050] The height of the support portion 7 should not be too high, but it should also be too low. If it is too high or too low, the center of the Z-shaped rib 6 and the main rib 5 will be in different horizontal planes, resulting in welding eccentricity, which may bring safety hazards. Therefore, as a further improvement, the height of the support portion 7 and the sum of the radius of the Z-shaped rib 6 are designed to be equal to the radius of the main rib 5, so that the center of the Z-shaped rib 6 and the center of the main rib 5 are in the same horizontal plane, which is convenient for processing personnel to perform precise welding.
[0051] The shape of the support portion 7 can be various, as long as it can support the Z-shaped rib 6 and reduce the difficulty of operation for the processing personnel. One implementation method is that the support portion 7 is in the shape of a strip, and the number is 2, and it is horizontally laid on the surface of the shaping station along the length direction of the arc of each group of positioning columns, such as Figure 1 Placing the Z-shaped rib 6 on the two strip-shaped support parts 7 can keep the Z-shaped rib 6 in a horizontal state, so that the processing personnel do not need to hold it by hand to keep it horizontal during welding, which facilitates the operation.
[0052] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A grid arch processing tool, characterized in that: It comprises a shaping station, on the surface of which at least two groups of positioning columns are arranged, each group of positioning columns is arranged in sequence along the longitudinal direction, each group of positioning columns is divided into two rows, and both rows of positioning columns are arc-shaped with the same curvature.
2. The grid arch processing tool according to claim 1, characterized in that: It also includes a positioning track, which is located between two rows of positioning columns in the same group, and the positioning track and the positioning columns in each row are in an arc with the same arc.
3. The grid arch processing tool according to claim 1, characterized in that: The two rows of positioning columns in the same group are staggered.
4. The grid arch processing tool according to claim 1, characterized in that: The positioning column is detachably mounted on the surface of the shaping station.
5. The grid arch processing tool according to claim 1, characterized in that: It also includes positioning plates, which are located at both ends of each group of positioning columns.
6. The grid arch processing tool according to claim 5, characterized in that: The positioning plate is detachably mounted on the surface of the shaping station.
7. The grid arch processing tool according to claim 1, characterized in that: The shaping station is a workbench, and one or both sides of the workbench along the length direction of the arc presented by each group of positioning columns are arc-shaped.
8. The grid arch processing tool according to claim 1, characterized in that: It also includes a supporting portion, which is located between two adjacent groups of positioning columns.
9. The grid arch processing tool according to claim 8, characterized in that: The sum of the height of the support portion and the rib radius of the grid arch Z-shaped rib is equal to the radius of the grid arch main rib.
10. The grid arch processing tool according to claim 8, characterized in that: The support parts are in the shape of strips and are 2 in number, and are horizontally laid on the surface of the shaping station along the length direction of the arcs formed by each group of positioning columns.