Precise positioning and welding universal device for multi-model tunnel steel arch connecting steel plates

Abstract

The utility model belongs to the technical field of tunnel steel arch machining, and particularly relates to a universal device for accurate positioning and welding of multi-model tunnel steel arch connecting steel plates. The device comprises a longitudinal steel plate, a transverse steel plate, a positioning bolt, a transverse positioning adjusting mechanism and a fixing clamp, the transverse steel plate is connected to one plate face of the longitudinal steel plate, and the bottom edge of the transverse steel plate is perpendicular to the axis of the longitudinal steel plate to form a T-shaped structure. The positioning bolt is connected to the other plate surface of the longitudinal steel plate; the transverse positioning adjusting mechanism is vertically connected to the plate surface of the transverse steel plate; the fixing clamps are connected to the upper surfaces of the transverse steel plates. When the connecting plates are welded to the ends of the steel arch segments, accurate positioning can be achieved, the problem that bolt holes are not aligned when two adjacent arch segments are assembled on site is effectively solved, the defective rate is reduced, and the construction efficiency of assembling the tunnel preliminary bracing steel arch on site is improved. The device is suitable for welding and processing the end connecting steel plates of the I-shaped steel arches with different specifications and models, and is high in applicability.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel steel arch frame processing technology, specifically relating to a universal device for precise positioning and welding of connecting steel plates for multiple models of tunnel steel arch frames. Background Technology

[0002] Steel arch support is a common support method in tunnel construction. The processing quality and efficiency of the steel arch directly affect the safety, quality, and construction efficiency of the tunnel. Due to the large inner diameter of tunnels, standard segments are often fabricated first and then assembled on-site. Connections between segments typically involve welding perforated steel plates and using bolts. However, ensuring the verticality and hole accuracy of the welded connecting plates is often difficult. This can lead to misalignment of bolt holes in adjacent connecting plates during on-site installation, affecting the construction time and initial support quality of the tunnel steel arch. Utility Model Content

[0003] This utility model provides a universal device for precise positioning and welding of steel plates connecting steel arch frames in tunnels of various models. Its purpose is to provide a device that enables precise positioning of steel arch frame connecting plates during welding and can be used for positioning steel arch frame connecting plates of different specifications and models, thereby improving the welding accuracy of steel arch frame connecting plates and the efficiency of on-site installation.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames, used for welding I-beam steel arch frames, including...

[0006] Longitudinal steel plate,

[0007] A transverse steel plate is connected to one side of a longitudinal steel plate, and the bottom edge of the transverse steel plate is perpendicular to the axis of the longitudinal steel plate, forming a T-shaped structure.

[0008] The positioning pin is connected to the other side of the longitudinal steel plate;

[0009] A lateral positioning adjustment mechanism is vertically connected to the surface of the lateral steel plate.

[0010] The fixing clamp is attached to the upper surface of the transverse steel plate.

[0011] The longitudinal steel plate is a rectangular plate; the length of the longitudinal steel plate matches the inner spacing of the flanges on both sides of the I-beam to be welded.

[0012] The horizontal steel plate is a rectangular plate; multiple through holes are opened on the surface of the horizontal steel plate for connecting the horizontal positioning adjustment mechanism.

[0013] At least two positioning pins are provided; all positioning pins are arranged perpendicularly to the surface of the longitudinal steel plate at intervals.

[0014] The positioning pin is cylindrical.

[0015] The lateral positioning adjustment mechanism uses a second fixing bolt; multiple second fixing bolts are provided; the screws of the multiple second fixing bolts extend alternately from both sides of the lateral steel plate.

[0016] The fixing fixture includes a fixture body and fixing components; the fixture body is connected to the upper surface of the transverse steel plate; fixing components are connected to both sides of the fixture body.

[0017] The clamp body is concave; through holes for connecting with the fixing component are respectively opened on both sides of the concave clamp body.

[0018] The distance between the inner sides of the two sides of the fixture body matches the distance between the outer sides of the two wings of the I-beam.

[0019] The fastener is the first fixing bolt.

[0020] Beneficial effects:

[0021] (1) When welding the connecting plate at the end of the steel arch frame segment, this utility model can accurately position the bolt holes, effectively solve the problem of misalignment of bolt holes when assembling two adjacent arch frames on site, reduce the defect rate, and improve the efficiency of on-site assembly of the steel arch frame for the initial support of the tunnel.

[0022] (2) This utility model is applicable to the welding and processing of steel plates connecting the ends of I-beam steel arch frames of different specifications and models, and has strong applicability.

[0023] (3) This utility model has a simple structure and is easy to operate.

[0024] (4) The materials for this utility model are readily available and the cost is low.

[0025] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is a diagram showing the usage state of this utility model.

[0029] In the diagram: 1. Positioning pin; 2. Longitudinal steel plate; 3. Transverse steel plate; 4. Fixing clamp; 5. First fixing bolt; 6. Second fixing bolt; 7. Connecting steel plate; 8. I-beam. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1:

[0032] according to Figure 1 and Figure 2 The device shown is a universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames, used for welding I-beam steel arch frames, including...

[0033] Longitudinal steel plate 2,

[0034] A transverse steel plate 3 is connected to one side of a longitudinal steel plate 2, and the bottom edge of the transverse steel plate 3 is perpendicular to the axis of the longitudinal steel plate 2, forming a T-shaped structure.

[0035] Positioning pin 1 is connected to the other side of the longitudinal steel plate 2.

[0036] A transverse positioning adjustment mechanism is vertically connected to the surface of the transverse steel plate 3.

[0037] Fixture 4 is attached to the upper surface of the transverse steel plate 3.

[0038] The longitudinal steel plate 2 and the transverse steel plate 3 in this utility model are the most basic supports of this utility model. The transverse positioning adjustment mechanism is used to adjust the steel arch frame of different models so that the utility model is centered in the transverse direction and controls the transverse position. The fixing clamp fixes the utility model on the I-beam to be welded and can also be used as an installation handle. The connecting steel plate positioning pin is fixed to the vertical positioning steel plate and is used to control the vertical position of the connecting steel plate.

[0039] In practical use, the steel arch frame segment requiring welding connecting plates is placed horizontally and stably on the operating platform. The lateral positioning adjustment mechanism is adjusted according to the different specifications of the I-beam steel arch frame to ensure it is tightly against the inner walls of the two side flanges of the I-beam 8, with the longitudinal steel plate 2 positioned exactly at the center of the web of the I-beam, thus completing the lateral positioning. The device is then placed close to the end of the steel arch frame, and the connecting steel plate 7 is passed through the two positioning pins 1, ensuring it is in contact with the I-beam of the steel arch frame, completing the longitudinal and vertical positioning. The fixing clamp 4 is then fixed, ensuring it is tightly against the outer wall of the flange of the I-beam 8. Next, welding is performed on the flange area of ​​the connecting steel plate 7 and the I-beam of the steel arch frame 8. After welding, the lateral positioning adjustment mechanism and fixing clamp 4 inside the I-beam 8 are loosened, and the device is slid backward. The device is then removed using the fixing clamp 4, and welding is performed on the web area of ​​the connecting steel plate 7 and the I-beam of the steel arch frame 8. This completes the welding of the connecting steel plates.

[0040] This invention enables precise positioning of the connecting plates at the ends of steel arch frame segments, effectively solving the problem of misaligned bolt holes during on-site assembly of two adjacent arch frame segments, reducing the defect rate, and improving the efficiency of on-site assembly of steel arch frames for initial tunnel support. This invention is applicable to the welding and processing of connecting steel plates at the ends of I-beam steel arch frames of different specifications, demonstrating strong applicability. This invention features a simple structure and is easy to operate.

[0041] Example 2:

[0042] according to Figure 1 and Figure 2 The present invention relates to a universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames, which differs from Embodiment 1 in that: the longitudinal steel plate 2 is a rectangular plate; and the length of the longitudinal steel plate 2 matches the inner spacing of the two flanges of the I-beam to be welded.

[0043] In practical use, the dimensions of the longitudinal steel plate 2 can be selected according to the model of the steel arch frame. Any dimensional deviations can be adjusted by the transverse positioning adjustment mechanism to facilitate the normal implementation of welding operations.

[0044] Example 3:

[0045] according to Figure 1 and Figure 2 The present invention relates to a universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames, which differs from Embodiment 1 in that: the transverse steel plate 3 is a rectangular plate; and multiple through holes for connecting transverse positioning adjustment mechanisms are opened on the surface of the transverse steel plate 3.

[0046] The transverse steel plate 3 adopts this technical solution, which facilitates connection and positioning.

[0047] Example 4:

[0048] according to Figure 1 and Figure 2 The present invention relates to a universal device for precise positioning and welding of steel plates connecting steel arch frames in tunnels of various models. The difference between the present invention and the first embodiment is that: at least two positioning pins 1 are provided; all positioning pins 1 are arranged perpendicularly to the surface of the longitudinal steel plate 2 at intervals.

[0049] Furthermore, the positioning pin 1 is cylindrical.

[0050] In practical use, setting two positioning pins 1 is sufficient to ensure positioning stability. In specific applications, the number of positioning pins 1 can also be determined based on the size of the connecting steel plate 7, with the aim of ensuring stable positioning.

[0051] The positioning pin 1 adopts a cylindrical technical solution, which can ensure both the convenience of drilling and sufficient strength.

[0052] Example 5:

[0053] according to Figure 1 and Figure 2 The multi-model tunnel steel arch frame connecting steel plate precision positioning and welding universal device shown differs from Embodiment 1 in that: the transverse positioning adjustment mechanism adopts a second fixing bolt 6; multiple second fixing bolts 6 are provided; the screws of multiple second fixing bolts 6 extend alternately on both sides of the transverse steel plate 3.

[0054] In practical use, the extension length of the second fixing bolt 6 on the transverse steel plate 3 can be adjusted according to different specifications and models of I-beam steel arch frames, so that the longitudinal steel plate 2 is exactly at the center of the web of the I-beam 8, which is close to the two side flanges of the I-beam 8, and the transverse positioning can be completed simply and conveniently.

[0055] Example 6:

[0056] according to Figure 1 and Figure 2 The universal device for precise positioning and welding of steel plates connecting steel arch frames in tunnels shown here differs from Embodiment 1 in that: the fixing clamp 4 includes a clamp body and fixing parts; the clamp body is connected to the upper surface of the transverse steel plate 3; and fixing parts are connected to both sides of the clamp body.

[0057] Furthermore, the clamp body is concave; through holes for connecting with the fixing component are respectively opened on both sides of the concave clamp body.

[0058] Furthermore, the distance between the inner sides of the two sides of the fixture body matches the distance between the outer sides of the two wings of the I-beam.

[0059] In actual use, the opening of the fixing clamp 4 is facing downwards, and both sides of the fixing clamp 4 are inserted into the I-beam, so that the two sides are placed on the outside of the side wings of the I-beam. The clamp body is fixed to the I-beam by the fixing member, thereby fixing the utility model to facilitate subsequent operations.

[0060] Example 7:

[0061] according to Figure 1 and Figure 2 The universal device for precise positioning and welding of steel plates connecting steel arch frames in tunnels shown here differs from Embodiment Six in that the fixing component adopts the first fixing bolt 5.

[0062] In practical use, the fastener adopts the technical solution of the first fixing bolt 5, which is not only convenient to obtain materials and low in cost, but also easy to achieve its fastening function.

[0063] Example 8:

[0064] according to Figure 1 and Figure 2 The present invention discloses a universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames, which differs from Embodiment 1 in that: the longitudinal steel plate 2 is a rectangular plate; the length of the longitudinal steel plate 2 matches the inner spacing of the two side flanges of the I-beam to be welded; the transverse steel plate 3 is a rectangular plate; multiple through holes for connecting the transverse positioning adjustment mechanism are opened on the surface of the transverse steel plate 3; at least two positioning pins 1 are provided; all positioning pins 1 are arranged perpendicularly to the surface of the longitudinal steel plate 2 at intervals; the positioning pins 1 are cylindrical; the transverse positioning adjustment mechanism adopts second fixing bolts 6; multiple second fixing bolts 6 are provided; the screws of multiple second fixing bolts 6 extend alternately on both sides of the transverse steel plate 3; the fixing clamp 4 includes a clamp body and a fixing component; the clamp body is connected to the upper surface of the transverse steel plate 3; first fixing bolts 5 are respectively connected to the two sides of the clamp body; the clamp body is concave; through holes for connecting with the fixing component are opened on both sides of the concave clamp body; the inner spacing of the two sides of the clamp body matches the spacing of the outer side walls of the two flanges of the I-beam.

[0065] In practical use, the steel arch frame segment requiring welding connecting plates is placed horizontally and stably on the operating platform. The extension length of the second fixing bolt on the transverse positioning adjustment mechanism is adjusted according to the different specifications of the I-beam steel arch frame to ensure it is tightly against the two side flanges of the I-beam 8, with the longitudinal steel plate 2 positioned exactly at the center of the web of the I-beam 8, thus completing the transverse positioning. Next, the present invention is placed against the end of the steel arch frame, and the connecting steel plate 7 is passed through the positioning pin 1, so that the connecting steel plate 7 is in contact with the end face of the I-beam 8, completing the longitudinal and vertical positioning. Then, the first fixing bolt 5 is tightened to ensure it is tightly against the flange of the I-beam 8. Welding is then performed on the flange area between the connecting steel plate 7 and the I-beam 8. After welding, the first fixing bolt 5 and all the second fixing bolts 6 are loosened, and the present invention is slid backward. The present invention is then removed using the clamp body on the fixing clamp 4, which at this time functions as a handle. Welding of the area where the connecting steel plate 7 and the web plate 8 of the steel arch frame I-beam are completed, thus completing the welding of the connecting steel plate.

[0066] Where there is no conflict, those skilled in the art can combine the relevant technical features in the above examples according to the actual situation to achieve the corresponding technical effects. Specific details of the various combinations will not be elaborated here.

[0067] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0068] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0069] The above description is merely a preferred embodiment of the present invention. The present invention is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Any simple modifications, equivalent variations, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the present invention.

Claims

1. A universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames, used for welding I-beam steel arch frames, characterized in that: include Longitudinal steel plate (2). A transverse steel plate (3) is connected to one side of a longitudinal steel plate (2), and the bottom edge of the transverse steel plate (3) is perpendicular to the axis of the longitudinal steel plate (2), forming a T-shaped structure. Positioning pin (1) is connected to the other side of the longitudinal steel plate (2); A transverse positioning adjustment mechanism is vertically connected to the surface of the transverse steel plate (3); Fixture (4) is attached to the upper surface of the transverse steel plate (3).

2. The universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames as described in claim 1, characterized in that: The longitudinal steel plate (2) is a rectangular plate; the length of the longitudinal steel plate (2) matches the inner spacing of the two flanges of the I-beam to be welded.

3. The universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames as described in claim 1, characterized in that: The transverse steel plate (3) is a rectangular plate; multiple through holes for connecting the transverse positioning adjustment mechanism are opened on the plate surface of the transverse steel plate (3).

4. The universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames as described in claim 1, characterized in that: At least two positioning pins (1) are provided; all positioning pins (1) are arranged perpendicularly to the surface of the longitudinal steel plate (2) at intervals.

5. The universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames as described in claim 4, characterized in that: The positioning pin (1) is cylindrical.

6. The universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames as described in claim 1, characterized in that: The lateral positioning adjustment mechanism is a second fixing bolt (6); multiple second fixing bolts (6) are provided; the screws of multiple second fixing bolts (6) extend out of the two sides of the lateral steel plate (3) in an alternating manner.

7. The universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames as described in claim 1, characterized in that: The fixing clamp (4) includes a clamp body and a fixing member; the clamp body is connected to the upper surface of the transverse steel plate (3); the two sides of the clamp body are respectively connected to the fixing member.

8. The universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames as described in claim 7, characterized in that: The clamp body is concave; through holes for connecting with the fixing component are respectively opened on both sides of the concave clamp body.

9. A universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames as described in claim 8, characterized in that: The distance between the inner sides of the two sides of the fixture body matches the distance between the outer sides of the two wings of the I-beam.

10. A universal device for precise positioning and welding of connecting steel plates for multi-model tunnel steel arch frames as described in claim 7, characterized in that: The fastener is the first fixing bolt (5).

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