Tool for submerged-arc welding of PBL connecting plate and welding installation structure
The welding setup for PBL connection boards addresses the inefficiencies of traditional welding by enabling continuous and stable welding, reducing labor intensity and costs through a mechanized system with support elements and slots for secure board holding.
Patent Information
- Application Number
- CN202422062545.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-23
AI Technical Summary
In the prior art, the welding efficiency of PBL connecting plates is inefficient and labor-intensive, and the traditional welding method requires manual operation, resulting in low working efficiency and labor-intensive.
Tools for submerged arc welding of PBL connecting plates are adopted, including submerged arc welding machines, parallel tracks and support members. The support members are welded and fixed with parallel tracks. Angle steel is used as the track. There is a slot on the support. The slot design matches the PBL connecting plate. The steel box beam is inclined to facilitate welding.
It improves welding efficiency, reduces labor intensity, reduces labor costs, ensures welding stability and accuracy, simplifies installation steps, and improves welding quality.
Smart Images
Figure CN223098203U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of submerged arc welding construction, in particular to a tooling and a welding and installation structure for submerged arc welding of PBL connecting plates. Background Art
[0002] The steel-concrete bridge structure is a heavy steel structure, which means that the main load-bearing and stress-bearing parts of the upper part of the bridge are made of steel. The steel-concrete bridge structure has been widely used in various bridge constructions such as municipal construction, water-crossing bridges, highways, high-speed railways, and sea-crossing bridges due to its advantages of high strength, good homogeneity, and easy processing.
[0003] In the construction of steel-concrete bridges, the connection between the steel box girder and the concrete bridge deck is a very crucial link. Usually, this connection is realized through shear studs and PBL connecting plates. The PBL connecting plate is a high-performance shear force transmission element. The PBL connecting plate is generally vertically arranged on the steel box girder to ensure the effective connection between the steel structure and the concrete structure.
[0004] However, in the actual construction process, traditional carbon dioxide gas shielded welding is usually used for welding. This welding method requires welders to manually operate the welding torch for welding, which limits the welding speed and consistency. In addition, due to the very dense arrangement of PBL connecting plates on the concrete bridge deck, the single side of the PBL connecting plate needs to be welded in two passes to ensure that the welding dimensions meet the requirements of the drawing. A PBL connecting plate weld needs to be welded 4 times to ensure that the double-sided welds meet the drawing requirements. This leads to a huge welding workload for the PBL connecting plates. Using the traditional welding method will undoubtedly result in low work efficiency and high labor intensity. Content of the Utility Model
[0005] In order to solve the technical problems of the low working efficiency and high labor intensity of the existing device, the utility model provides a tooling and a welding and installation structure for submerged arc welding of PBL connecting plates, which can improve the welding efficiency, reduce the labor intensity, and lower the labor cost.
[0006] The technical solution adopted by the utility model to solve its technical problems is as follows:
[0007] The tooling for submerged arc welding of PBL connecting plates includes a submerged arc welding machine, two parallel tracks, and a plurality of support members. The submerged arc welding machine is arranged on the parallel tracks and can reciprocally slide along the parallel tracks. The plurality of support members are arranged at intervals along the length direction of the parallel tracks and are fixed at the bottom of the parallel tracks. One end of the support member has a clamping groove for fixing.
[0008] Furthermore, the support member is fixedly welded to the parallel track.
[0009] Furthermore, the parallel track is an angle steel.
[0010] Furthermore, the width of both sides of the angle steel is 40 mm, the thickness is 3 mm, and the length is 3000 mm.
[0011] Furthermore, the number of support members is 3.
[0012] A welding and installation structure is provided, including the tooling for submerged arc welding of the PBL connecting plate described in any one of the above embodiments, and further including a PBL connecting plate. The width of the card slot is greater than the thickness of the PBL connecting plate, and the inner wall of the card slot abuts against the PBL connecting plate.
[0013] Furthermore, the width of the card slot is 2 mm larger than the thickness of the PBL connecting plate.
[0014] Furthermore, it includes a steel box girder, the PBL connecting plate is vertically arranged on the steel box girder, and further includes a steel backing plate. The steel backing plate is arranged at the bottom of the steel box girder, driving the steel box girder to be inclined at 30° relative to the horizontal plane. The upper surface of the support member remains horizontal, and the included angle between the depth direction of the card slot and the upper surface of the support member is 60°.
[0015] The beneficial effects of the present utility model are:
[0016] 1. By arranging the submerged arc welding machine on the parallel tracks and enabling it to slide along the tracks, the tooling realizes continuous and efficient welding of the PBL connecting plate. The use of multiple support members ensures the stability of the tooling. The design of the card slot enables the tooling to be firmly hung on the PBL connecting plate, improving the stability and precision during the welding process. At the same time, using submerged arc welding undoubtedly improves the welding efficiency, reduces the labor intensity, and lowers the labor cost.
[0017] 2. The support member and the parallel track are fixed by welding, enhancing the structural strength and stability of the entire tooling, avoiding welding quality problems caused by the loosening of the support member and the parallel track during the welding process, and at the same time simplifying the installation steps and improving the operation efficiency.
[0018] 3. Using angle steel as the parallel track not only has high strength and good stability, but also has relatively low cost, is easy to process and install, and is suitable for on-site construction conditions.
[0019] 4. The specific specifications of the angle steel are clarified (the width of both sides is 40 mm, the thickness is 3 mm, and the length is 3000 mm), enabling the parallel track to not only bear the load during the welding process, but also have good stability and durability. At the same time, the standardized dimensions are conducive to mass production and rapid on-site assembly. When the welding area becomes larger, a certain number of additional angle steels can be added and spliced to extend the track length.
[0020] 5. Specifying the number of support members as 3 can, on the one hand, ensure that the tooling maintains good balance and stability, contributing to improving the welding quality and efficiency, and on the other hand, reduce costs.
[0021] 6. The width of the card slot is 2 mm larger than the thickness of the PBL connecting plate, ensuring that the PBL connecting plate can be easily inserted into the card slot while maintaining sufficient friction to prevent the PBL connecting plate from shifting during the welding process, thus ensuring the welding quality. This design is both simple and effective, reducing the operation difficulty and improving the production efficiency.
[0022] 7. Tilting the steel box girder 30° relative to the horizontal plane helps the welding torch to contact the part to be welded more smoothly, providing better welding accessibility. The tilted steel box girder allows the welder to more easily observe the welding area, which is beneficial for controlling the welding quality. The angle between the depth direction of the card slot and the upper surface of the support is 60°, making it easier for the card slot to be fixed on the PBL connecting plate and preventing it from moving during the welding process. This is because the gravity of the tooling will generate a component in the vertical direction, which helps the card slot to press tightly against the PBL connecting plate, making the support more firmly fixed on the PBL connecting plate. Description of the Drawings
[0023] Figure 1 is a schematic structural diagram of the tooling and welding installation structure for submerged arc welding of PBL connecting plates of the present utility model;
[0024] Figure 2 is a combined connection schematic diagram of the middle support and the PBL connecting plate;
[0025] Figure 3 is a schematic structural diagram of the support;
[0026] In the figure, the markings are: 1 - submerged arc welding machine, 2 - parallel track, 3 - support, 31 - card slot, 4 - steel box girder, 5 - steel backing plate, 6 - PBL connecting plate. Detailed Embodiment
[0027] To make the purpose, technical solution and advantages of the embodiments of the present application more clearly expressed, the present utility model will be further described below with reference to the drawings.
[0028] First of all, it should be stated that the clear and complete description of the technical solutions of the embodiments of the present application, the described embodiments are part of the embodiments of the present application, rather than a limitation to the present utility model. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.
[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "first", "second", "upper", "lower", "left", "right", "inner", "outer", "axial" or "radial" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model, rather than indicating or implying that the indicated device or element must have a specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present utility model.
[0030] It should be noted that in the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0031] Refer to Figures 1 to 3 , the present utility model provides a tooling and a welding installation structure for submerged arc welding of PBL connecting plates.
[0032] In some embodiments, the tooling for submerged arc welding of PBL connecting plates includes a submerged arc welding machine 1, two parallel tracks 2, and a plurality of support members 3. The submerged arc welding machine 1 is arranged on the parallel tracks 2 and can reciprocally slide along the parallel tracks 2. The plurality of support members 3 are arranged at intervals along the length direction of the parallel tracks 2 and fixed to the bottom of the parallel tracks 2. One end of the support member 3 has a clamping groove 31 for fixation.
[0033] The submerged arc welding machine 1 is an existing device and should include a welding machine, an electric arc, a welding wire, a welding flux, etc. The heat generated by the electric arc is used to melt the filler metal (welding wire) and the base material to form a weld seam. During the welding process, the electric arc is covered by a layer of fusible welding flux. The welding flux forms a protective layer in the welding area to isolate the air and prevent harmful gases from invading the molten pool, thereby improving the quality of the weld seam.
[0034] Regarding the number of the support members 3, "a plurality" means three or more.
[0035] The support member 3 is fixed to the bottom of the parallel track 2, preferably by welding, and can also be integrally provided, screwed, or fixed in other forms. There is no special limitation here, as long as the stable fixation of the two can be achieved.
[0036] In some embodiments, the support member 3 is fixedly welded to the parallel rail 2. The fixed connection between the support member 3 and the parallel rail 2 by welding enhances the structural strength and stability of the entire tooling, avoiding welding quality problems caused by loosening between the support member 3 and the parallel rail 2 during the welding process. At the same time, it simplifies the installation steps and improves the operation efficiency.
[0037] In some embodiments, the parallel rail 2 is an angle steel. Using angle steel as the parallel rail 2 not only has high strength and good stability, but also has relatively low cost, is easy to process and install, and is suitable for on-site construction conditions.
[0038] In some embodiments, the two sides of the angle steel are 40 mm wide, 3 mm thick, and 3000 mm long. Defining the specific specifications of the angle steel enables the parallel rail 2 to withstand the load during the welding process, and also has good stability and durability. At the same time, the standardized dimensions are conducive to mass production and rapid on-site assembly. When the welding area becomes larger, a certain number of additional angle steels can be added for splicing to extend the track length.
[0039] In some embodiments, the number of support members 3 is three. Specifying the number of support members 3 as three can, on the one hand, ensure that the tooling maintains good balance and stability, which helps to improve the welding quality and efficiency, and on the other hand, reduces costs.
[0040] In some embodiments, a welding and installation structure is provided, including the tooling for submerged arc welding of the PBL connecting plate described in any one of the above embodiments, and further including a PBL connecting plate 6. The width of the card slot 31 is greater than the thickness of the PBL connecting plate 6, and the inner wall of the card slot 31 abuts against the PBL connecting plate 6. This enables the support member 3 to be easily hung on the PBL connecting plate 6 through the card slot 31.
[0041] It should be noted that for the support member 3 to be hung on the PBL connecting plate 6, it should be ensured that the submerged arc welding machine 1 on the parallel rail 2 does not fall off and can slide normally along the parallel rail 2.
[0042] In some embodiments, the width of the card slot 31 is 2 mm larger than the thickness of the PBL connecting plate 6. The width of the card slot 31 being 2 mm larger than the thickness of the PBL connecting plate 6 ensures that the PBL connecting plate 6 can be easily inserted into the card slot 31, and at the same time, it can maintain sufficient friction to prevent the PBL connecting plate 6 from shifting during the welding process, thus ensuring the welding quality. This design is both simple and effective, reducing the operation difficulty and improving the production efficiency.
[0043] In some embodiments, it includes a steel box girder 4, and a PBL connecting plate 6 is vertically arranged on the steel box girder 4. It further includes a steel backing plate 5 which is arranged at the bottom of the steel box girder 4, driving the steel box girder 4 to be inclined at 30° relative to the horizontal plane. The upper surface of the support member 3 remains horizontal, and the included angle between the depth direction of the card slot 31 and the upper surface of the support member 3 is 60°.
[0044] Tilting the steel box girder 4 at 30° relative to the horizontal plane helps the welding torch to more smoothly contact the part to be welded, providing better welding accessibility and facilitating the welding of the PBL connecting plate 6 on the steel box girder 4. The tilted steel box girder 4 allows the welder to more easily observe the welding area, which is beneficial to controlling the welding quality. The included angle of 60° between the depth direction of the card slot 30 and the upper surface of the support member 3 makes it easier for the card slot 31 to be fixed on the PBL connecting plate 6 and avoid moving during the welding process. This is because the gravity of the tooling will generate a component in the vertical direction, which helps the card slot 31 to press tightly against the PBL connecting plate 6, making the support member 3 more firmly fixed on the PBL connecting plate 6.
[0045] The working process is as follows: Place the steel backing plate 5 at the bottom of the steel box girder 4 to make the included angle between the steel box girder 4 and the horizontal plane 30°. Arrange the PBL connecting plates 6 at intervals and preliminarily fix them on the steel box girder 4 by spot welding. Hang the support member 3 on the PBL connecting plate 6. At this time, the upper surface of the support member 3 remains horizontal. Place the submerged arc welding machine 1 on the parallel track 2, place the welding wire at the starting position of the first side of the PBL connecting plate 6. The submerged arc welding machine 1 slides along the parallel track 2 and welds the first side of the PBL connecting plate 6. After the welding is completed, adjust the position of the welding wire and weld the weld seam on the second side of the PBL connecting plate 6. After the welding is completed, move the support member 3 and hang it on other PBL connecting plates 6 to realize the movement of the submerged arc welding machine 1.
Claims
1. The tooling for submerged arc welding of PBL connecting plates, characterized in that: It includes a submerged arc welding machine (1), two parallel tracks (2) and multiple support members (3). The submerged arc welding machine (1) is arranged on the parallel tracks (2) and can reciprocally slide along the parallel tracks (2). The multiple support members (3) are arranged at intervals along the length direction of the parallel tracks (2) and fixed to the bottom of the parallel tracks (2). One end of the support member (3) has a clamping groove (31) for fixing.
2. The tooling for submerged arc welding of PBL connecting plates according to claim 1, characterized in that: The support member (3) is fixedly welded to the parallel track (2).
3. The tooling for submerged arc welding of the PBL connecting plate according to claim 1, characterized in that: The parallel track (2) is an angle steel.
4. The tooling for submerged arc welding of PBL connecting plates according to claim 3, characterized in that: The widths of both sides of the angle steel are 40 mm, the thickness is 3 mm, and the length is 3000 mm.
5. The tooling for submerged arc welding of PBL connecting plates as described in claim 1 is characterized in that: The number of the support members (3) is three.
6. Welding and installation structure, including a PBL connecting plate (6), characterized in that: It further includes the tooling for submerged arc welding of the PBL connecting plate described in any one of claims 1-5. The width of the clamping groove (31) is greater than the thickness of the PBL connecting plate (6), and the inner wall of the clamping groove (31) abuts against the PBL connecting plate (6).
7. The welding and installation structure according to claim 6, characterized in that: The width of the clamping groove (31) is 2 mm larger than the thickness of the PBL connecting plate (6).
8. The welding and installation structure according to claim 6, characterized in that: It includes a steel box girder (4). The PBL connecting plate (6) is vertically arranged on the steel box girder (4). It is characterized in that: it further includes a steel backing plate (5). The steel backing plate (5) is arranged at the bottom of the steel box girder (4), driving the steel box girder (4) to be inclined at 30° relative to the horizontal plane. The upper surface of the support member (3) remains horizontal, and the included angle between the depth direction of the clamping groove (31) and the upper surface of the support member (3) is 60°.