Assembly tool for inclined rod joint of steel truss girder

Abstract

A steel truss diagonal rod connector assembling tool comprises a horizontal positioning plate and vertical positioning plates, a positioning base line is engraved in the center of the upper end of the horizontal positioning plate, and the vertical positioning plates are symmetrically and fixedly arranged at the two ends of the horizontal positioning plate with the positioning base line as the center; vertical connecting holes corresponding to mounting holes of an inclined rod joint plate in position are symmetrically formed in the positions, on the two sides of the positioning base line, of the horizontal positioning plate, first bolt pairs are inserted into the vertical connecting holes, and vertical positioning holes corresponding to the mounting holes of the inclined rod joint plate are formed in any side of the positioning base line. A first positioning pin is inserted into the vertical positioning hole; the vertical positioning plate is provided with a horizontal connecting hole and a horizontal positioning hole which correspond to the mounting hole of the inclined rod joint wing plate, a second bolt pair is inserted into the horizontal connecting hole, and a second positioning pin is inserted into the horizontal positioning hole. The utility model aims to overcome the defects in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of steel truss diagonal rod welding, in particular to a steel truss diagonal rod joint assembly tool. Background Art

[0002] The upper deck of a double-deck steel truss cable-stayed bridge is a highway deck. The top plate of the side longitudinal beam is part of the highway deck structure and participates in the load-bearing of the bridge deck. At the same time, the top plate at the anchorage and the diagonal plate unit jointly bear the tension of the diagonal cable. A diagonal rod joint is welded at the bottom plate of the side longitudinal beam, and the diagonal rod joint is connected to the lower chord through the diagonal rod, so that the cross-section of the truss forms an "inverted trapezoidal" frame structure. The diagonal rod joint is composed of a diagonal rod joint plate and a diagonal rod joint wing plate. The diagonal rod joint plate and the diagonal rod joint wing plate adopt a process of first making holes and then assembling. The assembly accuracy of the diagonal rod joint wing plate is very high. The assembly positioning accuracy is directly related to whether the side longitudinal beam, the lower chord and the diagonal rod can be effectively connected. Using the existing technology for positioning and assembly, the overall assembly accuracy is not easy to guarantee, and the discreteness is large. At the same time, the assembly efficiency is low, which makes it difficult to meet the needs of factory mass production and the connection accuracy requirements of bridge rods. Utility Model Content

[0003] The utility model provides a steel truss diagonal rod joint assembly tool to overcome the shortcomings of the prior art.

[0004] The technical solution adopted by the utility model is: a steel truss diagonal rod joint assembly tool, including a horizontal positioning plate and a vertical positioning plate, the upper end of the horizontal positioning plate is engraved with a positioning baseline in the center, and the vertical positioning plates are symmetrically fixed at both ends of the horizontal positioning plate with the positioning baseline as the center;

[0005] Vertical connecting holes corresponding to the mounting holes of the diagonal rod joint plate are symmetrically provided on the horizontal positioning plates on both sides of the positioning baseline, and a first bolt pair is inserted into the vertical connecting holes. Vertical positioning holes corresponding to the mounting holes of the diagonal rod joint plate are provided on either side of the positioning baseline, and a first positioning pin is inserted into the vertical positioning hole.

[0006] The vertical positioning plate is provided with a horizontal connection hole and a horizontal positioning hole corresponding to the mounting hole of the diagonal rod joint wing plate. A second bolt pair is inserted into the horizontal connection hole, and a second positioning pin is inserted into the horizontal positioning hole.

[0007] A magnet is adsorbed on the upper end of the horizontal positioning plate.

[0008] The vertical positioning plate and the horizontal positioning plate are fixedly connected together by a connecting angle plate. The horizontal end of the connecting angle plate is welded to the upper end surface of the horizontal positioning plate, and the vertical end of the connecting angle plate is welded to the inner side surface of the vertical positioning plate.

[0009] Slopes are formed at the front and rear end positioning baselines of the horizontal positioning plate, and the positioning baselines extend to the lower ends of the slopes.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The utility model can simultaneously assemble the wing plates of the diagonal rod joints on both sides with high precision, and has a simple structure, convenient and easy operation, stable quality, improved assembly efficiency, reduced manufacturing costs, and strong applicability.

[0012] 2. The utility model can set and position the angle between the horizontal positioning plate and the vertical positioning plates on both sides by connecting the angle plates according to the designed angle between the diagonal rod joint plate and the diagonal rod joint edge plate, thereby realizing the angle positioning between the diagonal rod joint plate and the diagonal rod joint edge plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a structural diagram of the horizontal positioning plate of the utility model;

[0015] Figure 3 、 4 It is a schematic diagram of the use state of the utility model. DETAILED DESCRIPTION

[0016] The following is combined with Figure 1-4 The present invention is described in detail with specific implementation methods.

[0017] A steel truss beam diagonal rod joint assembly tool, comprising a horizontal positioning plate 1 and a vertical positioning plate 2. The upper center of the horizontal positioning plate 1 is engraved with a positioning baseline 1-1 and adsorbed with a magnet 3. The vertical positioning plates 2 are symmetrically fixed on both sides of the horizontal positioning plate 1 with the positioning baseline 1-1 as the center.

[0018] Vertical connection holes 1-2 corresponding to the mounting holes of the diagonal rod joint plate are symmetrically provided on the horizontal positioning plates 1 on both sides of the positioning baseline 1-1, and first bolt pairs 4 are inserted into the vertical connection holes 1-2. Vertical positioning holes 1-3 corresponding to the mounting holes of the diagonal rod joint plate are provided on either side of the positioning baseline 1-1, and first positioning pins 5 are inserted into the vertical positioning holes 1-3.

[0019] The vertical positioning plate 2 is provided with a horizontal connecting hole 2-1 and a horizontal positioning hole 2-2 corresponding to the mounting holes of the diagonal rod joint wing plate. A second bolt pair 6 is inserted into the horizontal connecting hole 2-1, and a second positioning pin 7 is inserted into the horizontal positioning hole 2-2.

[0020] In one embodiment, the vertical positioning plate 2 and the horizontal positioning plate 1 are fixedly connected together by a connecting angle plate 8. The bottom surface of the horizontal end of the connecting angle plate 8 is welded to the upper end surface of the horizontal positioning plate 1, and the side surface of the vertical end of the connecting angle plate 8 is welded to the inner side surface of the vertical positioning plate 2. In this embodiment, the connecting angle plate 8 is a right-angled shape, that is, the bottom surface of the horizontal end and the side surface of the vertical end are perpendicular to each other.

[0021] In one embodiment, in order to facilitate accurate alignment of the positioning baseline 1-1 with the positioning line on the diagonal rod joint plate, the front and rear ends of the horizontal positioning plate 1 are provided with slopes 1-4, and the positioning baseline 1-1 extends to the lower end of the slope 1-4.

[0022] When assembling the diagonal rod joint, first weld the diagonal rod joint plate 10 to the bottom plate 9 according to the design requirements, then make the bottom surface of the horizontal positioning plate 1 of the above-mentioned tooling close to the end surface of the diagonal rod joint plate 10 and insert the first positioning pin 5 into the mounting hole of the diagonal rod joint plate 10 to complete the rough positioning of the tooling. At this time, fine-tune the tooling so that the positioning baseline 1-1 coincides with the positioning line on the diagonal rod joint plate 10, adsorb the magnet 3 on the center of the horizontal positioning plate 1, fix the position of the tooling and the diagonal rod joint plate 10 by magnetic attraction, and then pass the first bolt pair 4 through the vertical connecting hole 1-2 and the diagonal rod joint. After the tooling is fixed to the mounting holes on the plate 10, the inner sides of the two oblique rod joint wing plates 11 are respectively pressed against the outer sides of the vertical positioning plate 2. At the same time, the second locating pin 7 is inserted into the mounting hole of the oblique rod joint wing plate 11, and the second bolt pair 6 passes through the horizontal connecting hole 2-1 and the mounting hole on the oblique rod joint wing plate 11 to fix the oblique rod joint wing plate 11 and the vertical positioning plate 2 together. Finally, the oblique rod joint wing plate 11 is welded to the oblique rod joint plate 10, the tooling is removed, and the positioning and assembly of the oblique rod joint plate is completed.

[0023] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A steel truss diagonal rod joint assembly tool, characterized by: It comprises a horizontal positioning plate (1) and a vertical positioning plate (2), wherein a positioning baseline (1-1) is engraved at the center of the upper end of the horizontal positioning plate (1), and the vertical positioning plates (2) are symmetrically fixed at both ends of the horizontal positioning plate (1) with the positioning baseline (1-1) as the center; Vertical connection holes (1-2) corresponding to the mounting holes of the diagonal rod joint plate (10) are symmetrically provided on the horizontal positioning plates (1) on both sides of the positioning baseline (1-1), and a first bolt pair (4) is inserted into the vertical connection hole (1-2). Vertical positioning holes (1-3) corresponding to the mounting holes of the diagonal rod joint plate are provided on either side of the positioning baseline (1-1), and a first positioning pin (5) is inserted into the vertical positioning hole (1-3). The vertical positioning plate (2) is provided with a horizontal connection hole (2-1) and a horizontal positioning hole (2-2) corresponding to the mounting hole of the diagonal rod joint wing plate (11); a second bolt pair (6) is inserted into the horizontal connection hole (2-1), and a second positioning pin (7) is inserted into the horizontal positioning hole (2-2).

2. The steel truss diagonal rod joint assembly tool according to claim 1, characterized in that: A magnet (3) is adsorbed on the upper end of the horizontal positioning plate (1).

3. The steel truss diagonal rod joint assembly tool according to claim 1, characterized in that: The vertical positioning plate (2) and the horizontal positioning plate (1) are fixedly connected together via a connecting angle plate (8), wherein the horizontal end of the connecting angle plate (8) is welded to the upper end surface of the horizontal positioning plate (1), and the vertical end of the connecting angle plate (8) is welded to the inner side surface of the vertical positioning plate (2).

4. The steel truss diagonal rod joint assembly tool according to claim 1, characterized in that: Slopes (1-4) are formed at the front and rear end positioning baselines (1-1) of the horizontal positioning plate (1), and the positioning baselines (1-1) extend to the lower ends of the slopes (1-4).

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