Positioning device for welding steel arch connecting plate

Abstract

The utility model provides a positioning device for welding a steel arch connecting plate, which comprises a body, clamping grooves used for being clamped with a steel arch are arranged on wing plates on two sides of the body, and a first limiting piece and a second limiting piece are arranged on the wing plate on one side. The first limiting piece and the second limiting piece are used for limiting the connecting plate in the longitudinal direction and the transverse direction correspondingly. The welding positioning device can avoid displacement of the connecting plate during welding, enables screw holes of the connecting plate to be aligned, and can be suitable for welding positioning of various connecting plates.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel steel arch construction, in particular to a positioning device for welding steel arch connection plates. Background Technique

[0002] During the initial support construction of tunnel excavation, steel arches are often used to support the excavation surface. In the welding process of the steel arches for support, scribed welding is often used on site, that is, welding lines are drawn on the connection plates. Using the scribed welding method is prone to inaccurate positioning, resulting in a change in the welding position between the steel arch and the connection plate. In subsequent assembly, the bolt holes of the steel plates do not align, which poses a threat to the safety and quality of tunnel construction.

[0003] The utility model with the publication number CN216966826U discloses a welding fixture device for steel arch connection plates, including a handle, an I-beam, and positioning bolts. The handle is welded to the upper part between the two web plates of the I-beam. Positioning notches are respectively opened at the lower bottom edges of the two web plates of the I-beam, and two positioning notches are opened on each web plate. Two positioning bolts perpendicular to the web plate are arranged outside one web plate of the I-beam. However, since the sizes of the screw holes and the distances between the screw holes on different connection plates are different, the two positioning bolts may not be able to align with the screw holes on the connection plate, and different connection plates need to be equipped with different welding fixture devices for steel arch connection plates, increasing the cost. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a positioning device for welding steel arch connection plates to solve the defects in the prior art, avoid the displacement of the connection plates during welding, align the screw holes of the connection plates, and be applicable to the welding positioning of various connection plates.

[0005] To achieve the above purpose, the utility model provides a positioning device for welding steel arch connection plates, including a body. Card slots for clamping with the steel arch are opened on both web plates of the body. A first limiting member and a second limiting member are arranged on one of the web plates, and the first limiting member and the second limiting member are respectively used to limit the connection plate longitudinally and transversely.

[0006] Place the positioning device at the connection between the steel arch and the connection plate, clamp the steel arch at the connection plate to be welded with the card slot, press the top of the connection plate against the first limiting member, and press its side against the second limiting member to ensure that the connection plate does not shift in the transverse and longitudinal directions during welding. After the connection plate is positioned, weld the connection plate and the steel arch to make the welding positioning accurate, ensure the construction quality, and the device can be reused.

[0007] Optionally, two first limiting members are symmetrically arranged on one of the web plates.

[0008] Optionally, a handle is further provided on the body. The welder holds the handle and places the positioning device at the connection between the steel arch and the connecting plate.

[0009] Optionally, both ends of the handle are respectively connected to the two side wing plates.

[0010] Optionally, two card slots are provided on each side wing plate. The steel arch is generally an I-beam, and the position and depth of the card slots are adjusted adaptively according to the steel arch.

[0011] Optionally, the two side wing plates are connected by a support plate.

[0012] Beneficial effects:

[0013] In the utility model, a first limiting member and a second limiting member are arranged on one side wing plate. When welding the connecting plate, the positioning device is placed at the connection between the steel arch and the connecting plate, the card slot is clamped at the position where the connecting plate to be welded on the steel arch, the top end of the connecting plate is abutted against the first limiting member, and its side is abutted against the second limiting member, ensuring that the connecting plate does not shift in the horizontal and vertical directions during welding. After the connecting plate is positioned, the connecting plate and the steel arch are welded, making the welding positioning accurate, ensuring the construction quality, and the positioning device can be reused, not affected by the size of the screw holes and the distance between the screw holes on the connecting plate. Connecting plates with different screw hole sizes and different screw hole distances can be positioned by the positioning device. Description of the drawings

[0014] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0015] Figure 1 Structural diagram of the positioning device for steel arch connecting plate welding disclosed by the present utility model;

[0016] Figure 2 Front view of the positioning device for steel arch connecting plate welding disclosed by the present utility model.

[0017] Reference numerals: 1 wing plate; 2 support plate; 3 card slot; 4 first limiting member; 5 second limiting member; 6 handle.

[0018] The realization, functional characteristics and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the drawings. Specific embodiments

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0020] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0021] In the description of the present utility model, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0022] See Figure 1 and 2 , according to an embodiment of the present utility model, a positioning device for welding a connecting plate of a steel arch frame includes a body. On both wing plates 1 of the body, card slots 3 for clamping with the steel arch frame are provided. On one side of the wing plate 1, a first limiting member 4 and a second limiting member 5 are provided. The first limiting member 4 and the second limiting member 5 are respectively used to limit the connecting plate 2 longitudinally and transversely.

[0023] Specifically, when welding the connecting plate, place the positioning device at the connection between the steel arch frame and the connecting plate, clamp the steel arch frame at the position where the connecting plate is to be welded with the card slot 3, abut the top end of the connecting plate against the first limiting member 4, and abut its side against the second limiting member 5 to ensure that the connecting plate does not shift in the transverse and longitudinal directions during welding. After the connecting plate is positioned, weld the connecting plate and the steel arch frame to make the welding positioning accurate, ensure the construction quality, and the positioning device can be reused, regardless of the size of the screw holes provided on the connecting plate and the distance between the screw holes. Connecting plates with different screw hole sizes and different screw hole distances can be positioned through the positioning device.

[0024] See Figure 1 and 2 , in some embodiments of the present utility model, two first limiting members 4 are symmetrically provided on one side of the wing plate 1.

[0025] SeeFigure 1 and 2 , in some embodiments of the present utility model, a handle 6 is further provided on the body. During positioning, the welder holds the handle 6 and places the positioning device at the connection between the steel arch and the connecting plate.

[0026] See Figure 1 , in some embodiments of the present utility model, both ends of the handle 6 are respectively connected to the two side wing plates 1.

[0027] See Figure 1 and 2 , in some embodiments of the present utility model, two slots 3 are provided on each side wing plate 1. The steel arch is generally an I-beam, and the position and depth of the slots are adjusted adaptively according to the steel arch.

[0028] See Figure 1 , in some embodiments of the present utility model, the two side wing plates 1 are connected by a support plate 2, and two support plates 2 are arranged between the two side wing plates 1. Optionally, both ends of the handle 6 can also be respectively connected to the two support plates 2.

[0029] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A positioning device for welding a connecting plate of a steel arch frame, characterized in that, It includes a main body. On both side wing plates of the main body, there are clamping grooves for clamping with a steel arch frame. On one side wing plate, there are a first limiting member and a second limiting member, and the first limiting member and the second limiting member are respectively used to limit the connecting plate longitudinally and transversely.

2. The positioning device according to claim 1, wherein On one side wing plate, two first limiting members are symmetrically arranged.

3. The positioning device according to claim 1, characterized in that, A handle is also provided on the main body.

4. The positioning device according to claim 3, characterized in that, Both ends of the handle are respectively connected to the two side wing plates.

5. The positioning device according to claim 1, wherein, On each side wing plate, two clamping grooves are provided.

6. The positioning device according to claim 1, characterized in that The two side wing plates are connected by a support plate.

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