Positioning device for shaping and sizing four-side welding of tunnel steel arch

Abstract

The utility model relates to the technical field of tunnel construction auxiliary equipment, in particular to a tunnel steel arch shaping and sizing four-side welding positioning device which comprises a first steel frame and a second steel frame arranged below the first steel frame, and side welding top plates are arranged on the outer sides of the first steel frame and the second steel frame. Welding assisting web plates are arranged on the inner walls of the first steel frame and the second steel frame, fixing clamping plates are arranged on the outer sides of the welding assisting top plate and the welding assisting web plates, fastening screw rods are arranged at the rear ends of the fixing clamping plates, driving discs are fixedly mounted at the rear ends of the fastening screw rods, abutting blocks are arranged at the front ends of the fastening screw rods, and the abutting blocks are fixedly connected with the driving discs. According to the shaping and sizing four-side welding positioning device for the tunnel steel arch, the structural design of a side welding top plate, a side welding web plate, a fixed clamping plate, a positioning clamping block, a fastening screw rod, a driving disc and an abutting block is utilized, so that the situation of position deviation during welding is effectively avoided, the welding quality between steel frames is improved, and the production efficiency is improved. And the subsequent use of the steel arch is facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of tunnel construction auxiliary equipment, specifically a four-sided welding positioning device for shaping and measuring tunnel steel arch frames. Background Technology

[0002] During the excavation of the tunnel, it is necessary to carry out initial support in a timely manner. For some areas with poor surrounding rock, it is necessary to use rigid frames such as steel arch frames or grid arch frames for reinforcement. Due to the limitation of processing and manufacturing length and for the sake of construction convenience, the arch frames are processed in units of I-beams.

[0003] The current tunnel steel arch frame fixed-size four-sided welding positioning device relies on layout and marking, visual positioning, auxiliary workers holding the frame, and electric welders working together to connect the I-beams during construction. This welding method is prone to welding position deviations due to inaccurate positioning, which in turn affects the subsequent welding quality and is not conducive to the normal use of the tunnel steel arch frame.

[0004] In summary, this utility model solves the problems in the background art by designing a four-sided welding positioning device for shaped and sized tunnel steel arch frames. Utility Model Content

[0005] The purpose of this utility model is to provide a four-sided welding positioning device for shaping and sizing tunnel steel arch frames, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A four-sided welding positioning device for a tunnel steel arch frame includes a first steel frame and a second steel frame located below the first steel frame. Both the first and second steel frames have welding top plates on their outer sides and welding webs on their inner walls. Fixing clamps are located on the outer sides of the welding top plates and welding webs. A positioning clamp is fixedly installed at the front end of the inner side of each fixing clamp. A fastening screw is located at the rear end of each fixing clamp. A drive disc is fixedly installed at the rear end of the fastening screw. An abutment block is located at the front end of the fastening screw.

[0008] As a preferred embodiment of this utility model, both the No. 1 steel frame and the No. 2 steel frame are made of I-beams.

[0009] As a preferred embodiment of this utility model, the outer sides of the No. 1 steel frame and the No. 2 steel frame are arched.

[0010] As a preferred embodiment of this utility model, the welded top plate is located on the left and right sides of the No. 1 steel frame and the No. 2 steel frame, respectively, and the welded web plate is located inside the No. 1 steel frame and the No. 2 steel frame, respectively.

[0011] As a preferred embodiment of this utility model, the outer central axis of the welded top plate and the welded web plate is flush with the contact ends of the No. 1 steel frame and the No. 2 steel frame.

[0012] As a preferred embodiment of this utility model, the cross-sectional shape of the fixing clamp is U-shaped, and the inner wall dimension of the fixing clamp matches the outer dimensions of the first steel frame and the second steel frame.

[0013] As a preferred embodiment of this utility model, the opposing side surfaces of the abutment block and the positioning clamping block are provided with anti-slip patterns, the front end thread of the fastening screw passes through the rear side surface of the fixing clamping plate and extends to its inner side, and the fastening screw is made of stainless steel.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, a four-sided welding positioning device for a tunnel steel arch frame is designed to be shaped and sized. Utilizing the structural design of a welding top plate, welding web plate, fixing clamp, positioning clamp, fastening screw, driving disc, and abutment block, the abutment block moves forward and abuts against the welding top plate and welding web plate respectively, driven by the driving disc to the fastening screw. This achieves constrained welding of the welding top plate and welding web plate on all four sides of the steel frame, effectively preventing positional displacement during welding, improving the welding quality between steel frames, and facilitating the subsequent use of the steel arch frame. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the No. 2 steel frame of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the fixing clamp of this utility model.

[0019] In the diagram: 1. Steel frame No. 1; 2. Steel frame No. 2; 3. Top plate with welded side; 4. Web plate with welded side; 5. Fixing clamp; 501. Positioning clamp; 502. Fastening screw; 503. Drive disc; 504. Abutment block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0025] A four-sided welding positioning device for a tunnel steel arch frame includes a first steel frame 1 and a second steel frame 2 located below the first steel frame 1. Both the first steel frame 1 and the second steel frame 2 have welding top plates 3 on their outer sides and welding web plates 4 on their inner walls. Fixing clamps 5 are provided on the outer sides of the welding top plates 3 and welding web plates 4. A positioning clamp 501 is fixedly installed on the front end of the inner side of the fixing clamp 5. A fastening screw 502 is provided at the rear end of the fixing clamp 5. A drive disc 503 is fixedly installed at the rear end of the fastening screw 502. An abutment block 504 is provided at the front end of the fastening screw 502.

[0026] Specifically, both steel frame 1 and steel frame 2 are made of I-beams, and the outer sides of steel frame 1 and steel frame 2 are arched.

[0027] In this implementation plan, the arched arrangement of steel frame 1 and steel frame 2 can support the inner wall of the tunnel.

[0028] Specifically, the top plate 3 is located on the left and right sides of the No. 1 steel frame 1 and the No. 2 steel frame 2, respectively, and the web plate 4 is located inside the No. 1 steel frame 1 and the No. 2 steel frame 2, respectively. The outer central axis of the top plate 3 and the web plate 4 is flush with the contact end of the No. 1 steel frame 1 and the No. 2 steel frame 2.

[0029] In this implementation scheme, the top plate 3 is mainly used to make welding contact with the left and right sides of the No. 1 steel frame 1 and the No. 2 steel frame 2, while the web plate 4 is mainly used to make welding contact with the inner wall of the No. 1 steel frame 1 and the No. 2 steel frame 2. This improves the welding strength of the No. 1 steel frame 1 and the No. 2 steel frame 2 and meets the support requirements of the steel arch frame.

[0030] Specifically, the cross-sectional shape of the fixing plate 5 is U-shaped, and the inner wall size of the fixing plate 5 matches the outer dimensions of the first steel frame 1 and the second steel frame 2. The opposing side surfaces of the abutment block 504 and the positioning clamping block 501 are provided with anti-slip patterns. The front thread of the fastening screw 502 passes through the rear side surface of the fixing plate 5 and extends to its inner side. The fastening screw 502 is made of stainless steel.

[0031] In this embodiment, the combination of the fixed clamping plate 5 and the positioning clamping block 501 is mainly used to contact the inner walls of the first steel frame 1 and the second steel frame 2, while the drive disc 503 is mainly used to drive the fastening screw 502. Under the threaded transmission between the fastening screw 502 and the fixed clamping plate 5, the fastening screw 502 causes the abutment block 504 to move forward, so that the abutment block 504 forms a positioning contact with the surface of the welded web plate 4 or the welded top plate 3, thereby achieving the function of positioning the welded web plate 4 and the welded top plate 3. This is beneficial for subsequent welding personnel to weld and fix the welded top plate 3 and the welded web plate 4, and improves the welding efficiency of the welding personnel.

[0032] The working process of this utility model is as follows: When using a four-sided welding positioning device for a tunnel steel arch frame, firstly, the No. 1 steel frame 1 is moved so that its contact end is close to and aligned with the No. 2 steel frame 2. Then, the connecting ends of the No. 1 steel frame 1 and the No. 2 steel frame 2 are firmly welded using MIG welding. Next, the welding web plate 4 is moved so that it contacts the inner walls of the No. 1 steel frame 1 and the No. 2 steel frame 2 respectively, ensuring that the outer central axis of the welding web plate 4 is level with the contact ends of the No. 1 steel frame 1 and the No. 2 steel frame 2. Then, the U-shaped opening of the fixing clamp 5 is aligned with the welding web plate 4, so that the positioning clamp 501 is aligned with the inner wall of the steel frame. The wall is fitted together, and then the drive disk 503 is rotated. The drive disk 503 drives the fastening screw 502 to rotate, and the fastening screw 502 drives the abutment block 504 to contact the welded web plate 4, thereby achieving the positioning of the welded web plate 4. Then, the welding personnel can weld and fix the welded web plate 4 to the first steel frame 1 and the second steel frame 2. After the above operation, the welded top plate 3 can be welded and fixed to the first steel frame 1 and the second steel frame 2. This achieves the effect of four-sided welded joint of the first steel frame 1 and the second steel frame 2, which can effectively reduce the risk of stress deformation of the steel arch frame and is beneficial to subsequent use.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tunnel steel arch shaping, sizing, four-side helping and welding positioning device, comprising a first steel frame (1) and a second steel frame (2) arranged below the first steel frame (1), characterized in that: Both the No. 1 steel frame (1) and the No. 2 steel frame (2) are provided with welded top plates (3) on their outer sides. Both the No. 1 steel frame (1) and the No. 2 steel frame (2) are provided with welded web plates (4) on their inner walls. The welded top plates (3) and the welded web plates (4) are provided with fixed clamping plates (5) on their outer sides. The front end of the inner side of the fixed clamping plates (5) is fixedly installed with a positioning clamping block (501). The rear end of the fixed clamping plates (5) is provided with a fastening screw (502). The rear end of the fastening screw (502) is fixedly installed with a driving disc (503). The front end of the fastening screw (502) is provided with an abutment block (504).

2. The positioning device for tunnel steel arch framing profiling, sizing, four-side welding and positioning according to claim 1, characterized in that: Both the No. 1 steel frame (1) and the No. 2 steel frame (2) are made of I-beams.

3. The positioning device for tunnel steel arch framing profiling, sizing, four-side welding and positioning according to claim 1, characterized in that: The outer sides of the No. 1 steel frame (1) and the No. 2 steel frame (2) are arched.

4. The positioning device for tunnel steel arch framing profiling, sizing, four-side welding and positioning according to claim 1, characterized in that: The welded top plate (3) is located on the left and right sides of the first steel frame (1) and the second steel frame (2), respectively, and the welded web plate (4) is located inside the first steel frame (1) and the second steel frame (2), respectively.

5. The positioning device for tunnel steel arch framing profiling, sizing, four-side welding and positioning according to claim 1, characterized in that: The outer central axis of the welded top plate (3) and welded web plate (4) is flush with the contact ends of the first steel frame (1) and the second steel frame (2).

6. The tunnel steel arch frame shaping and length-fixing four-sided welding positioning device according to claim 1, characterized in that: The cross-sectional shape of the fixing plate (5) is U-shaped, and the inner wall dimension of the fixing plate (5) matches the outer dimensions of the first steel frame (1) and the second steel frame (2).

7. The positioning device for tunnel steel arch framing according to claim 1, characterized in that: The opposing side surfaces of the abutment block (504) and the positioning clamp block (501) are provided with anti-slip patterns. The front end thread of the fastening screw (502) passes through the rear side surface of the fixing clamp (5) and extends to its inner side. The fastening screw (502) is made of stainless steel.

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