Tool for manufacturing arc-shaped plate unit

Abstract

The utility model provides a tool for manufacturing an arc-shaped plate unit, which belongs to the field of arc-shaped plate unit manufacturing tools and comprises a telescopic supporting leg device and a bottom plate platform, the telescopic supporting leg device is arranged on the bottom plate platform, and an arc-shaped bottom plate of the arc-shaped plate unit is arranged on the telescopic supporting leg device. And a plurality of plate ribs of the arc-shaped plate unit are arranged at the upper end of the arc-shaped bottom plate at intervals. The telescopic supporting legs are arranged at the bottom, the height of each telescopic supporting leg can be adjusted according to the required radian, so that the corresponding radian can be adjusted according to the requirement, the supporting legs can be simultaneously used in welding of all unit pieces, the supporting legs can be reused, and the supporting legs can be used on different tools.

Description

Technical Field

[0001] This utility model relates to the field of manufacturing tooling for curved plate units, and in particular to a tooling for manufacturing curved plate units. Background Technology

[0002] Many existing bridges are assembled using steel box girder unit components. However, since many of these steel box girder unit components are irregular curved structures, the current manufacturing of curved bridge plate units involves directly welding pre-designed curved plates. This welding process is often carried out on flat ground or on specially designed curved structures. This method of welding easily leads to changes in the curvature of the curved plate unit and insufficient precision.

[0003] Chinese patent CN114603316B discloses a method for manufacturing an arc-shaped gate panel. The method involves preparing rolled steel plates, assembling a frame, laying the plates, welding, cutting, and filling gaps in the seams to create the arc-shaped gate panel. The steel plates are rolled longitudinally, in a step-by-step, evenly spaced, and uniformly pressed manner. A support row is used to connect the steel plates to the base plate, forming an arc-shaped jig that supports multiple rolled plates to form the panel. After welding the panel, it is dragged to create staggered seams, and then welded back to the arc-shaped jig to control deformation. This method mainly relies on the rolled plates and the arc-shaped jig for support and fixation. However, this structure is fixed and the arc cannot be changed; if the arc needs to be altered, a new device must be used. Therefore, a tooling for manufacturing arc-shaped panel units needs to be designed, allowing the tooling's curvature to be modified as needed. Utility Model Content

[0004] The purpose of this utility model is to provide a tooling for manufacturing curved plate units, which solves the technical problem that existing bridge curved plate unit tooling cannot be reused and the curvature cannot be changed.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A tooling for manufacturing an arc-shaped plate unit includes a telescopic support leg device and a base plate platform. The telescopic support leg device is disposed on the base plate platform, and the arc-shaped base plate of the arc-shaped plate unit is disposed on the telescopic support leg device. Several plate ribs of the arc-shaped plate unit are spaced apart at the upper end of the arc-shaped base plate.

[0007] Furthermore, the retractable support leg device includes several retractable support legs, with the retractable support legs in the same row having the same height, and the length of the retractable support legs increasing from both ends towards the middle.

[0008] Furthermore, the retractable support foot includes a column and a lead screw assembly. The lead screw assembly is located on the top of the column. The lead screw assembly includes a support disc, a lead screw, and a lead screw sleeve. The support disc is located on the top of the lead screw. The lead screw and the lead screw sleeve are connected by threads and are retractable.

[0009] Furthermore, a disc base is provided at the bottom of the supporting disc, and the disc base is connected to the top of the lead screw.

[0010] Furthermore, the retractable support foot also includes a fixed hollow low rod, with a screw sleeve fitted and fixed inside the upper end of the fixed hollow low rod, and the bottom of the fixed hollow low rod connected to the support base or to the I-beam.

[0011] Furthermore, lubricating oil is applied between the lead screw and the lead screw sleeve.

[0012] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0013] This utility model is equipped with retractable support feet at the bottom. The height of each retractable support foot can be adjusted according to the required curvature, thereby achieving the corresponding curvature adjustment as needed. The support feet can be used simultaneously in the welding of all unit components, enabling the support feet to be reused and applied to different tooling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the tooling structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the retractable support rod structure of this utility model;

[0016] Figure 3 This is a flowchart of the manufacturing process of the arc-shaped plate unit of this utility model.

[0017] In the attached diagram, 1-plate rib, 2-arc-shaped base plate, 3-retractable support foot, 4-support disc, 5-disc base, 6-lead screw, 7-lead screw sleeve, 8-fixed hollow low rod, 9-base plate platform. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are merely to provide the reader with a thorough understanding of one or more aspects of this utility model, and these aspects can be achieved even without these specific details.

[0019] like Figure 1 As shown, a tooling for manufacturing arc-shaped plate units includes a retractable support leg device and a base plate platform 9. The retractable support leg device is mounted on the base plate platform 9, and the arc-shaped base plate 2 of the arc-shaped plate unit is mounted on the retractable support leg device. Several plate ribs 1 of the arc-shaped plate unit are spaced apart at the upper end of the arc-shaped base plate 2. The base plate platform 9 mainly serves to horizontally and fix the entire structure.

[0020] In this utility model, such as Figure 2 As shown, the retractable support leg device includes several retractable support legs 3. The retractable support legs 3 in the same row have the same height, and their length increases from both ends towards the middle. Each retractable support leg 3 includes a column and a lead screw assembly. The lead screw assembly is located at the top of the column. The lead screw assembly includes a support disc 4, a lead screw 6, and a lead screw sleeve 7. The support disc 4 is located on top of the lead screw 6. The lead screw 6 and the lead screw sleeve 7 are connected by threads and are retractable. A disc base 5 is located at the bottom of the support disc 4, and the disc base 5 is connected to the top of the lead screw 6. The retractable support leg 3 also includes a fixed hollow lower rod 8. The lead screw sleeve 7 is fitted and fixed inside the upper end of the fixed hollow lower rod 8. The bottom of the fixed hollow lower rod 8 is connected to the support base or to an I-beam. Lubricating oil is applied between the lead screw 6 and the lead screw sleeve 7. The lead screw has a diameter of 50 cm, and the disc has a diameter of 140 cm.

[0021] The fabrication process of the curved plate unit is as follows: Figure 3 As shown:

[0022] 1. Material cutting: The base plate is cut by flame cutting, and the ribs are cut by CNC plasma cutting;

[0023] 2. Beveling: The beveling is done using flame cutting;

[0024] 3. Rib drilling: The ribs are placed on the drilling platform and drilled using a CNC drilling machine. The rib hole groups on the arch top side of each segment are drilled first, and the rib hole groups on the arch foot side are drilled after the total allowance is cut off.

[0025] 4. Marking lines: Draw the longitudinal and transverse baselines, as well as the assembly lines for the ribs and partitions;

[0026] 5. Assemble the plate ribs: Assemble the plate ribs according to the line, and use CO2 gas shielded welding for tack welding;

[0027] 6. Welding: The unit components are placed on an arc-shaped jig and welded using CO2 gas shielded automatic welding. Welding is carried out in strict accordance with the "Welding Procedure Specification".

[0028] 7. Correction: Correct welding deformation;

[0029] 8. Marking and labeling: Punch holes in the positioning baseline, and mark the unit number and direction identification code on the label plate.

[0030] The height of each retractable support leg can be adjusted according to the required curvature, thereby enabling the support legs to be used simultaneously in the welding of all unit components, allowing for reuse of the support legs and their application in different tooling.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A tooling for manufacturing arc-shaped plate units, characterized in that: It includes a retractable support foot device and a base plate platform (9). The retractable support foot device is set on the base plate platform (9). The arc-shaped base plate (2) of the arc plate unit is set on the retractable support foot device. Several plate ribs (1) of the arc plate unit are spaced apart at the upper end of the arc-shaped base plate (2).

2. The tooling for manufacturing arc-shaped plate units according to claim 1, characterized in that: The retractable support foot device includes several retractable support feet (3), the retractable support feet (3) in the same row have the same height, and the length of the retractable support feet (3) increases from both ends to the middle position.

3. The tooling for manufacturing arc-shaped plate units according to claim 2, characterized in that: The retractable support foot (3) includes a column and a screw assembly. The screw assembly is located on the top of the column. The screw assembly includes a support disc (4), a screw (6), and a screw sleeve (7). The support disc (4) is located on the top of the screw (6). The screw (6) and the screw sleeve (7) are connected by threads and are retractable.

4. The tooling for manufacturing arc-shaped plate units according to claim 3, characterized in that: A disc base (5) is provided at the bottom of the supporting disc (4), and the disc base (5) is connected to the top of the lead screw (6).

5. The tooling for manufacturing arc-shaped plate units according to claim 3, characterized in that: The retractable support foot (3) also includes a fixed hollow low rod (8), and a screw sleeve (7) is fitted and fixed inside the upper end of the fixed hollow low rod (8). The bottom of the fixed hollow low rod (8) is connected to the support base or to the I-beam.

6. The tooling for manufacturing arc-shaped plate units according to claim 3, characterized in that: Lubricating oil is applied between the lead screw (6) and the lead screw sleeve (7).

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