Pre-welding pressing jig frame for diaphragm plate unit piece

Abstract

The pre-welding pressing jig frame for the diaphragm plate unit pieces comprises a supporting frame, a plurality of stop levers are fixedly arranged at the top of the supporting frame, a plurality of pressing pieces are fixedly arranged between the stop levers and a bottom plate, and a side edge pressing mechanism is further fixedly arranged at the top of the supporting frame; the side edge pressing mechanism fixes the side edge of the bottom plate, so that after the bottom plate is pressed by the pressing piece, the bottom plate is not prone to sliding, the pressing stability is guaranteed, the supporting frame at the position is in a hollowed-out state, the cooling speed of a welding spot of the transverse partition plate is relatively low when the transverse partition plate is welded by the external mechanical arm welding equipment, and the welding quality of the transverse partition plate is improved. The residual stress at the welding spot is relatively small, the cold brittleness phenomenon is not prone to occurring, the welding stability is guaranteed, and then the quality of the steel box girder is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of steel box girder manufacturing, and in particular to a pre-welding clamping frame for a diaphragm unit. Background Art

[0002] Steel box girder, also known as steel plate box girder, is a common structural form in long-span bridge projects. It is usually used for bridges with larger spans. Its shape is like a box, hence the name. The structure of the steel box girder consists of a fully welded top plate, bottom plate, web plate, transverse diaphragm, longitudinal diaphragm and stiffening ribs.

[0003] Usually, when manufacturing steel box girders, the cross beams are welded to the base plate. In order to ensure the beauty of the weld, the stability of the welding, and to reduce welding deformation and control the residual stress after welding, the cross diaphragm needs to be clamped and fixed before welding to ensure the stability of the position of the base plate and the cross diaphragm during welding. In the prior art, the base plate is usually clamped to the ground directly by an external clamping mechanism for welding. This clamping method has the following defects: first, the clamping effect is unstable, and the base plate may still slip, resulting in a change in the welding position; second, the base plate is in direct contact with the ground, resulting in strong thermal conductivity of the base plate during welding, and its heat is quickly conducted to the ground, resulting in too fast cooling of the weld point, resulting in strong residual stress, and even causing cold brittleness at the weld, which leads to the quality of the steel box girder not meeting the requirements.

[0004] Therefore, the inventor is necessary to design a new diaphragm unit before welding to press the tire frame to overcome the above problems. Summary of the invention

[0005] The main purpose of the present application is to provide a pre-welding clamping frame for a diaphragm unit to solve the problems of unstable clamping effect and rapid temperature drop of welding points when welding diaphragms in the related art.

[0006] In order to achieve the above-mentioned purpose, the present application provides a tire frame for clamping a transverse partition unit before welding, including a support frame, a plurality of baffle rods are fixedly arranged on the top of the support frame, a plurality of clamping members are fixedly arranged between the baffle rods and the bottom plate, and a side clamping mechanism is also fixedly arranged on the top of the support frame.

[0007] Preferably, a disassembly structure is fixedly provided between the blocking rod and the supporting frame.

[0008] Preferably, the disassembly structure comprises a plurality of groups of mounting plates symmetrically fixedly arranged at two ends of the top of the support frame, each group of the mounting plates is symmetrically provided with insertion holes, and the blocking rods are inserted into the insertion holes.

[0009] Preferably, an anti-slip structure is fixedly provided between the blocking rod and the mounting plate.

[0010] Preferably, the anti-slip structure comprises a stopper and a bolt, the stopper is fixedly provided at one end of the stopper rod, the other end of the stopper rod is fixedly provided with a threaded hole, and the bolt is fixedly connected to the stopper rod through the threaded hole.

[0011] Preferably, the pressing member comprises a first cylinder, the first cylinder is placed on the bottom plate, and the telescopic end of the first cylinder abuts against the bottom of the blocking rod.

[0012] Preferably, the side clamping mechanism includes a second cylinder, which is fixedly arranged on the top of the support frame, and the output end of the second cylinder abuts against one end of the bottom plate, and the other end of the bottom plate abuts against the mounting plate.

[0013] Preferably, the support frame includes two longitudinal plates and a plurality of transverse plates, the two longitudinal plates are arranged in parallel, and the transverse plate is fixedly arranged between the two longitudinal plates.

[0014] Preferably, the blocking rod is directly opposite to the transverse plate.

[0015] The utility model provides a tire frame for pressing a diaphragm unit before welding, which has the following beneficial effects compared with the prior art:

[0016] 1. The side clamping mechanism fixes the side of the bottom plate, so that after the clamping parts clamp the bottom plate, the bottom plate is not easy to slip, ensuring the stability of the clamping. The support frame here is in a hollow state, so that when the diaphragm is welded by an external robotic arm welding equipment, the cooling speed at the welding point is relatively slow, so that the residual stress at the welding point is relatively small, and it is not easy to be cold brittle, which ensures the stability of welding and thus ensures the quality of the steel box girder.

[0017] Second, the structure is simple, the operation is convenient, the production cost is low and the production efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0019] Figure 1 It is the overall structure diagram of the utility model;

[0020] Figure 2 This is an exploded view of the utility model from the first perspective;

[0021] Figure 3 This is an exploded view of the utility model from the second viewing angle.

[0022] Among them: 1. Support frame; 101. Vertical plate; 102. Horizontal plate; 2. Stop rod; 3. Bottom plate; 4. Mounting plate; 5. Socket; 6. Stop block; 7. Bolt; 8. Threaded hole; 9. First cylinder; 10. Second cylinder; 11. Horizontal partition. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0027] In addition, the term "plurality" shall mean two or more.

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] like Figures 1 to 3 The support frame 1 is hollow, so that when the diaphragm 11 is welded, the cooling speed at the welding spot of the diaphragm 11 is relatively slow, so that the residual stress at the welding spot is relatively small, and the cold brittleness phenomenon is not easy to occur, thereby ensuring the stability of the welding.

[0030] A disassembly structure is fixedly arranged between the baffle rod 2 and the supporting frame 1; the disassembly structure includes a plurality of groups of mounting plates 4 symmetrically fixedly arranged at both ends of the top of the supporting frame 1, each group of the mounting plates 4 is symmetrically provided with insertion holes 5, and the baffle rod 2 is inserted into the insertion holes 5; during operation, the base plate 3 is usually transported to the supporting frame 1 by hanging it from top to bottom, so the baffle rod 2 is arranged to be detachable so that the baffle rod 2 does not block the base plate 3 when the base plate 3 is placed, and the baffle rod 2 can be pulled out of the insertion hole 5 when hanging it, and after hanging it, the baffle rod 2 can be reinserted into the insertion hole 5.

[0031] An anti-slip structure is also fixedly arranged between the baffle rod 2 and the mounting plate 4; the anti-slip structure includes a baffle block 6 and a bolt 7, the baffle block 6 is fixedly arranged at one end of the baffle rod 2, and a threaded hole 8 is fixedly arranged at the other end of the baffle rod 2, and the bolt 7 is fixedly connected to the baffle rod 2 through the threaded hole 8; during operation, after the baffle rod 2 is inserted into the socket 5, since the baffle rod 2 is also subjected to the pressure of the clamping member, in order to prevent the baffle rod 2 from being deformed after being compressed and then falling off from the socket 5, a baffle block 6 is arranged at one end of the baffle rod 2 and a bolt 7 is arranged at the other end, so that the baffle rod 2 is not easy to fall off from the socket 5 and is easy to disassemble and assemble.

[0032] The clamping member includes a first cylinder 9, which is placed on the bottom plate 3, and the telescopic end of the first cylinder 9 abuts against the bottom of the blocking rod 2; when working, the first cylinder 9 is placed on the bottom plate 3, and then the telescopic end is controlled to be telescopic until it abuts against the blocking rod 2, thereby achieving a clamping effect. In addition to the first cylinder 9, the clamping member here can also adopt a clamping structure such as an electric telescopic rod. It should be noted that the cross-section of the blocking rod 2 is preferably rectangular, so that the telescopic end of the first cylinder 9 has a larger contact surface when abutting, and the clamping effect is more stable. The clamping member here is movably placed, which is more convenient during disassembly and is convenient for welding large quantities of diaphragms 11.

[0033] The side clamping mechanism includes a second cylinder 10, which is fixedly arranged on the top of the supporting frame 1, and the output end of the second cylinder 10 abuts against one end of the base plate 3, and the other end of the base plate 3 abuts against the mounting plate 4; when working, the second cylinder 10 can press the base plate 3 against the mounting plate 4, so that the base plate 3 is not easy to slip, thereby ensuring stability during welding.

[0034] The support frame 1 includes two longitudinal plates 101 and a plurality of transverse plates 102. The two longitudinal plates 101 are arranged in parallel, and the transverse plate 102 is fixedly arranged between the two longitudinal plates 101. The blocking rod 2 is opposite to the transverse plate 102. When working, the blocking rod 2 is opposite to the transverse plate 102, so that when the clamping part is working, the part pressed on the bottom plate 3 is supported, which makes it difficult for the bottom plate 3 to bend and deform, thereby ensuring the welding effect.

[0035] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tire frame for pressing a diaphragm unit before welding, characterized in that: It comprises a support frame (1), a plurality of baffles (2) are fixedly arranged on the top of the support frame (1), a plurality of clamping members are fixedly arranged between the baffles (2) and a bottom plate (3), and a side clamping mechanism is also fixedly arranged on the top of the support frame (1).

2. A diaphragm unit pre-welding pressing frame according to claim 1, characterized in that: A disassembly structure is fixedly arranged between the barrier rod (2) and the support frame (1).

3. A diaphragm unit pre-welding pressing frame as claimed in claim 2, characterized in that: The disassembly structure comprises a plurality of groups of mounting plates (4) symmetrically fixedly arranged at the two ends of the top of the support frame (1), each group of the mounting plates (4) being symmetrically provided with insertion holes (5), and the blocking rods (2) being inserted into the insertion holes (5).

4. A diaphragm unit pre-welding pressing frame as claimed in claim 3, characterized in that: An anti-slip structure is also fixedly arranged between the blocking rod (2) and the mounting plate (4).

5. A diaphragm unit pre-welding pressing frame as claimed in claim 4, characterized in that: The anti-slip structure comprises a stopper (6) and a bolt (7); the stopper (6) is fixedly arranged at one end of the stopper rod (2); a threaded hole (8) is fixedly arranged at the other end of the stopper rod (2); and the bolt (7) is fixedly connected to the stopper rod (2) via the threaded hole (8).

6. A diaphragm unit pre-welding pressing frame as claimed in claim 1, characterized in that: The pressing member comprises a first cylinder (9), the first cylinder (9) is placed on the bottom plate (3), and the telescopic end of the first cylinder (9) abuts against the bottom of the blocking rod (2).

7. A diaphragm unit pre-welding pressing frame as claimed in claim 3, characterized in that: The side clamping mechanism comprises a second cylinder (10), the second cylinder (10) is fixedly arranged on the top of the support frame (1), the output end of the second cylinder (10) abuts against one end of the base plate (3), and the other end of the base plate (3) abuts against the mounting plate (4).

8. A diaphragm unit pre-welding pressing frame as claimed in claim 1, characterized in that: The support frame (1) comprises two longitudinal plates (101) and a plurality of transverse plates (102); the two longitudinal plates (101) are arranged in parallel, and the transverse plates (102) are fixedly arranged between the two longitudinal plates (101).

9. A diaphragm unit pre-welding pressing frame as claimed in claim 8, characterized in that: The blocking rod (2) is directly opposite to the transverse plate (102).

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