Quick positioning and welding device for tunnel arch connecting flange plate

Abstract

This utility model relates to the field of tunnel construction equipment technology, specifically to a rapid positioning and welding device for tunnel arch frame connecting flange plates. It includes clamping rods and positioning clamping plates. The two clamping rods are hinged together at the middle, with a clamping side and an operating side on either side of the hinge point. The positioning clamping plates are fixedly connected to the clamping sides of the clamping rods. The inner sides of the two positioning clamping plates are provided with positioning cavities matching the shape of the arch frame. An elastic element is provided between the two clamping rods on the operating side to maintain a clamping tendency. Positioning structures corresponding to the flange holes of the arch frame connecting flange plates are provided on the sides of the positioning clamping plates. This rapid positioning and welding device for tunnel arch frame connecting flange plates, through the cooperation of the positioning clamping plates and positioning structures, can quickly and accurately achieve the positioning and welding of the arch frame connecting flange plates, avoiding many problems caused by inaccurate positioning and ensuring the rapid and smooth assembly of the tunnel arch frame.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment technology, specifically to a rapid positioning and welding device for tunnel arch frame connecting flange plates. Background Technology

[0002] In the large-scale tunnel construction process in my country, the arch frame, as an indispensable key structural material, undertakes many crucial functions, such as reinforcing the tunnel walls, providing stable support, and efficiently transferring the load from the tunnel roof. It is like the "skeleton" of the tunnel, laying a solid foundation for the stability of the entire tunnel structure and directly affecting the quality, safety, and service life of the tunnel project.

[0003] Typically, a complete arch frame is not composed of a single component, but rather assembled from multiple sections of steel arches with connecting flanges welded to their bottom ends, connected by bolts. This design not only facilitates the transportation and on-site installation of the arch frame, but also allows for flexible adjustments based on different tunnel cross-sectional shapes and dimensions. However, the accuracy of the positioning of the connecting flanges is crucial in the entire arch frame assembly process. Only when the connecting flanges are precisely positioned can the steel arch sections be tightly and securely connected together by bolts, forming an integral load-bearing structure, thereby fully utilizing the arch frame's load-bearing capacity.

[0004] However, in the actual on-site steel arch frame processing, the problem of inaccurate positioning of connecting flange plates frequently occurs, becoming a major problem hindering tunnel construction. The reasons for this problem are multifaceted. On the one hand, the on-site construction environment is complex, and due to factors such as space constraints and insufficient lighting, it is difficult for operators to ensure the accuracy of positioning connecting flange plates. On the other hand, the lack of effective positioning tools and standardized operating procedures means that the positioning process often relies on the operator's experience and subjective judgment, which is prone to errors.

[0005] Inaccurate positioning of the connecting flange plate can lead to a series of serious consequences. First, it will prevent all bolts from being installed properly, with some bolts possibly failing to be screwed into the bolt holes due to positional deviations, resulting in loose connections between the sections of the arch frame. Second, the arch frame's alignment will become irregular, with the originally regular arc structure twisted and deformed. This not only affects the overall aesthetics of the tunnel but, more importantly, adversely impacts its structural stability. The irregular arch frame alignment will also increase the construction period for the steel arch frame, as corrections and adjustments to the inaccurate positioning are necessary, undoubtedly delaying the project and increasing construction costs. Furthermore, inaccurate positioning may lead to insufficient load-bearing capacity of the tunnel steel frame, making it unable to effectively withstand the pressure from the overhead rock and soil during tunnel operation. This poses a potential threat to the quality and safety of the tunnel project, and in severe cases, may even lead to major safety accidents such as tunnel collapse.

[0006] To effectively solve the above problems, there is an urgent need for a device that can quickly and accurately perform positioning welding of the flange plates connecting the arch frame, so as to improve the processing quality and construction efficiency of the steel arch frame and ensure the safe and smooth progress of the tunnel project. Summary of the Invention

[0007] To address the aforementioned issues, this utility model provides a rapid positioning and welding device for tunnel arch frame connecting flange plates. This device, through the cooperation of a positioning clamp and a positioning structure, enables rapid and accurate positioning and welding of the arch frame connecting flange plates, avoiding numerous problems caused by inaccurate positioning and ensuring the smooth assembly of the arch frame.

[0008] The technical solution of this utility model is as follows:

[0009] A rapid positioning and welding device for a tunnel arch frame connecting flange includes clamping rods and positioning clamping plates. The two clamping rods are hinged together at their center, with a clamping side and an operating side on either side of the hinge point. The positioning clamping plates are fixedly connected to the clamping sides of the clamping rods. The inner sides of the two positioning clamping plates are provided with positioning cavities that match the shape of the arch frame. An elastic element is provided between the two clamping rods on the operating side to maintain a clamping tendency. A positioning structure corresponding to the flange holes of the arch frame connecting flange is provided on the side of the positioning clamping plates. Through the two centrally hinged clamping rods, in conjunction with the positioning clamping plates on the clamping sides, and utilizing the elastic element to maintain a clamping tendency, the clamping rods can be quickly clamped onto the arch frame. The positioning cavity on the inner side of the positioning clamp, matching the shape of the arch frame, allows for initial positioning of the arch frame. The positioning structure on the side of the positioning clamp corresponds to the flange holes of the arch frame connecting flange, enabling rapid and accurate positioning of the connecting flange, facilitating subsequent welding operations, and improving construction efficiency and positioning accuracy.

[0010] Specifically, the two clamping rods are hinged together by a pin; using a pin to hinge together the two clamping rods has a simple structure, is easy to install and disassemble, and can ensure that the clamping rods can rotate flexibly around the pin to realize the clamping and releasing actions. Moreover, the pin connection has a certain strength and stability, which can meet the force requirements of the device during use.

[0011] Furthermore, a handle is provided at the operating end of the clamping rod; the handle at the operating end of the clamping rod makes it convenient for the operator to hold and apply force, allowing the operator to easily control the opening and closing of the clamping rod, thereby making it more convenient to use the device to perform positioning welding operations on the arch frame connecting flange plate, improving the convenience and comfort of operation.

[0012] Furthermore, the positioning structure consists of a positioning rod fixedly mounted on the positioning clamp plate. The positioning rod can be inserted into the flange hole of the arch frame connecting flange plate. This simple structure achieves precise positioning of the connecting flange plate. The positioning method is intuitive and reliable, and the positioning rod is easy to process and install.

[0013] Preferably, the positioning rod passes through the positioning clamp.

[0014] Furthermore, the positioning rods are arranged symmetrically with respect to the positioning clamp.

[0015] Specifically, each of the positioning clamps is provided with two positioning rods.

[0016] Furthermore, the elastic element is a spring, with both ends of the spring fixedly connected to the inner sides of the two clamping rods respectively; the spring can provide stable and continuous elastic force, so that the two clamping rods always maintain a clamping tendency, ensuring that the device can be firmly fixed when clamping the arch frame, and will not be easily released due to external force during operation, thus improving the reliability and ease of use of the device.

[0017] Furthermore, the main body of the arch frame is an I-beam, and the positioning cavity is an I-beam-shaped cavity, which can perfectly fit the shape of the I-beam to achieve precise positioning and clamping of the main body of the arch frame, ensuring a tight fit between the device and the arch frame, and providing a stable foundation for the positioning of the connecting flange plate.

[0018] Specifically, the upper end of the positioning cavity is attached to the upper flange of the I-beam, and the middle part is attached to the waist plate of the I-beam. This allows the I-beam to be positioned and fixed from multiple directions, enhancing the connection stability between the device and the I-beam arch frame, making the positioning more accurate and reliable, and reducing positioning errors.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. This utility model discloses a rapid positioning and welding device for tunnel arch frame connecting flange plates. This device solves the problem of inaccurate positioning. In the processing of tunnel arch frames, traditional methods often result in inaccurate positioning of the connecting flange plates, leading to problems such as bolts not being able to be aligned and arch frame lines not being straight. This device, through the cooperation of the positioning clamp and the positioning structure, can quickly and accurately achieve the positioning and welding of the arch frame connecting flange plates, avoiding many problems caused by inaccurate positioning and ensuring the smooth assembly of the arch frame.

[0021] 2. The present invention discloses a quick positioning and welding device for tunnel arch frame connecting flange plates. The quick positioning and welding device for tunnel arch frame connecting flange plates has a simple structure and low cost. The device consists of only simple components such as clamping rod, positioning clamping plate, elastic element (such as spring), pin, handle, and positioning rod. The structure is not complicated, and compared with some complicated positioning and welding equipment, it greatly reduces the manufacturing cost.

[0022] 3. This utility model discloses a rapid positioning and welding device for tunnel arch frame connecting flange plates. This device provides rapid and accurate positioning. The inner side of the positioning clamp is provided with a positioning cavity that matches the shape of the arch frame. The upper end is attached to the upper flange of the I-beam, and the middle part is attached to the waist plate of the I-beam, positioning the arch frame from both vertical and horizontal dimensions. At the same time, the side of the positioning clamp is provided with positioning structures (such as positioning rods) corresponding to the flange holes of the arch frame connecting flange plates. These structures precisely control the position of the positioning rods, ensuring the accuracy of positioning and effectively avoiding the situation where bolts cannot be installed due to inaccurate positioning.

[0023] 4. This utility model discloses a quick positioning and welding device for tunnel arch frame connecting flange plates. This device is easy to operate and improves efficiency. A handle is provided on the operating side for easy operation by construction workers. Two clamping rods are connected by a hinge, and an elastic element is provided on the operating side to keep the clamping rods clamped. The construction worker holds the handle to clamp the steel arch frame with the positioning clamping plate. The device can slide along the arch frame line. The positioning rod passes through the hole in the flange plate. After releasing the handle, the device is fixed under the action of the spring force. The worker can quickly complete the welding and then easily remove the device. The whole operation process is simple and quick, improving construction efficiency.

[0024] 5. The present invention discloses a quick positioning and welding device for tunnel arch frame connecting flange plates. This quick positioning and welding device for tunnel arch frame connecting flange plates is reusable. By utilizing the elastic element near the upper part of the hinge, the device can be quickly fixed and disassembled. It can be reused for all assembly operations of the same type of arch frame, thereby improving the utilization rate of the device and reducing construction costs.

[0025] 6. The present invention discloses a quick positioning and welding device for tunnel arch frame connecting flange plates. The positioning rod of the quick positioning and welding device for tunnel arch frame connecting flange plates is set on the positioning clamp plate in a through and symmetrical manner, so that the positioning and welding connection points on both sides of a single arch frame can be used, eliminating the need for frequent disassembly of the device, further saving time and improving construction efficiency.

[0026] 7. The present invention discloses a rapid positioning and welding device for tunnel arch frame connecting flange plates. This rapid positioning and welding device for tunnel arch frame connecting flange plates can also be used to eliminate flange plates with large deviations after the connecting flange plates have been machined and the positioning holes have been formed, and to standardize the hole positions of multiple connecting flange plates, which helps to improve the welding speed and overall quality of the arch frame. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the clamping state of a quick positioning and welding device for a tunnel arch frame connecting flange plate according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the loosened state of a tunnel arch frame connecting flange plate quick positioning welding device according to an embodiment of the present invention;

[0029] Figure 3 This is a structural schematic diagram of the use state of a tunnel arch frame connecting flange plate quick positioning welding device according to an embodiment of the present utility model;

[0030] Figure 4 for Figure 3 Enlarged view at point A in the middle;

[0031] The components represented by the various reference numerals in the diagram are:

[0032] This utility model includes: 1. Handle, 2. Spring, 3. Pin, 4. Positioning rod, 5. Left positioning clamp, 6. Right positioning clamp, 7. Arch frame, 71. Connecting flange plate. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0034] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0035] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0036] like Figure 1 and Figure 2As shown, the tunnel arch frame connecting flange plate quick positioning welding device mainly consists of positioning rod 4, positioning clamp plate, pin 3, spring 2 and handle 1.

[0037] The device includes two clamping rods, which are hinged together at the middle by a pin 3. The clamping rods are positioned on the clamping side and the operating side on either side of the hinge point. Positioning plates, namely a left positioning plate 5 and a right positioning plate 6, are fixedly connected to the clamping side of the clamping rods. The inner side of the two positioning plates is provided with positioning cavities that match the shape of the arch frame 7. In this embodiment, the main body of the arch frame 7 is an I-beam, so the positioning cavity is an I-shaped cavity. The upper end of the positioning cavity is attached to the upper flange of the I-beam, and the middle part is attached to the waist plate of the I-beam, which can realize the positioning of the steel arch frame in both vertical and horizontal dimensions.

[0038] A positioning structure corresponding to the flange hole of the connecting flange plate 71 of the arch frame 7 is provided on the side of the positioning clamp. The positioning structure is a positioning rod 4 fixedly set on the positioning clamp. The positioning rod 4 passes through the positioning clamp and is symmetrically arranged with the positioning clamp as the center. Two positioning rods 4 are provided on each positioning clamp. The position of the positioning rod 4 is determined according to the hole position on the tunnel arch frame flange connecting plate.

[0039] An elastic element, spring 2, is provided between the two clamping rods on the operating side to maintain the clamping tendency of the two clamping rods. The two ends of spring 2 are fixedly connected to the inner side of the two clamping rods respectively, and spring 2 is located at the upper part near the hinge position, which can effectively fix the device completely at the connection position of the arch flange plate.

[0040] A handle 1 is provided at the operating end of the clamping rod, and the construction worker can operate the device by holding the handle 1.

[0041] Please refer to Figure 3 and Figure 4 The construction method of the tunnel arch frame connecting flange plate quick positioning welding device is as follows:

[0042] In the fabrication of tunnel arch frames, the quick positioning and welding device for connecting flange plates of tunnel arch frames is used according to the following steps:

[0043] Clamping the arch frame: The construction worker holds the handle 1 so that the positioning clamping plate clamps the steel arch frame 7. At this time, the upper part of the I-shaped hollow of the positioning clamping plate is attached to the upper wing plate of the I-beam, and the middle part is attached to the waist plate of the I-beam.

[0044] Sliding positioning: The device then slides along the arch frame line, and the positioning rod 4 passes through the hole of the end connecting flange plate 71 of the two steel arch frame sections to be connected, until the positioning clamp of the device is completely in contact with the end face of the steel arch frame connecting flange plate 71 on the same side of the device.

[0045] Fixing device: When handle 1 is released, under the action of spring 2, the positioning rod 4 is subjected to the outward force of spring 2, which causes the left and right positioning clamps to be fixed by force, thereby fixing the clamp at the connection.

[0046] Welding flange plates: The workers quickly completed the welding of the flange plates 71 connecting the ends of the two steel arch frames.

[0047] Remove the device: Finally, the construction worker holds the handle 1 and slides it in the opposite direction along the arch frame until the positioning rod 4 is completely removed from the hole of the connecting flange plate 71 at the end of the two steel arch frames. At this time, the positioning welding device can be completely removed.

[0048] Connecting the arch frame: Construction workers use bolts to quickly connect two sections of steel arch frame, completing the welding and assembly of the two sections.

[0049] Furthermore, this device can also be used when, after machining the connecting flange plate 71 and making the positioning holes, the consistency of the hole positions of each flange plate 71 cannot be guaranteed. This device can be used to eliminate flange plates 71 with larger deviations, standardize the hole positions of multiple connecting flange plates 71, and thus improve the arch frame welding speed. Because the positioning rod 4 adopts a through-type and symmetrical design, the positioning welding connection points on both the left and right sides of a single arch frame section can be used, eliminating the need for disassembly and saving time.

[0050] The tunnel arch frame connecting flange plate quick positioning and welding device consists of only a positioning rod 4, a positioning clamp, a pin 3, a spring 2, and a handle 1. It has a simple structure and low cost. The positioning clamp is attached to the upper flange of the I-beam, and the middle part is attached to the waist plate of the I-beam to control the position of the positioning rod 4, which ensures the accuracy of positioning and avoids the problem of bolts not being able to be aligned due to inaccurate positioning. The spring 2 near the upper part of the hinge can quickly complete the fixing and disassembly, and can be reused for all assembly operations of the same type of arch frame.

[0051] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A rapid positioning and welding device for connecting flange plates of tunnel arch frames, characterized in that, It includes a clamping rod and a positioning clamping plate. The two clamping rods are hinged together in the middle. The clamping rods are clamping side and operating side on both sides of the hinge point. The clamping side of the clamping rod is fixedly connected to the positioning clamping plate. The inner side of the two positioning clamping plates is provided with a positioning cavity that matches the shape of the arch frame (7). An elastic element is provided between the two clamping rods on the operating side to give the two clamping rods a clamping tendency. The side of the positioning clamping plate is provided with a positioning structure corresponding to the flange hole of the connecting flange plate (71) of the arch frame (7).

2. The rapid positioning and welding device for tunnel arch frame connecting flange plates as described in claim 1, characterized in that, The two clamping rods are hinged together by a pin (3).

3. The rapid positioning and welding device for tunnel arch frame connecting flange plates as described in claim 1, characterized in that, The operating end of the clamping rod is provided with a handle (1).

4. The rapid positioning and welding device for tunnel arch frame connecting flange plates as described in claim 1, characterized in that, The positioning structure is a positioning rod (4) fixedly installed on the positioning clamp.

5. The rapid positioning and welding device for tunnel arch frame connecting flange plates as described in claim 4, characterized in that, The positioning rod (4) passes through the positioning clamp.

6. The rapid positioning and welding device for tunnel arch frame connecting flange plates as described in claim 5, characterized in that, The positioning rod (4) is symmetrically arranged with the positioning clamp as the center.

7. A rapid positioning and welding device for tunnel arch frame connecting flange plates as described in claim 5 or 6, characterized in that, Each of the positioning clamps is provided with two positioning rods (4).

8. The rapid positioning and welding device for tunnel arch frame connecting flange plates as described in claim 1, characterized in that, The elastic element is a spring (2), and the two ends of the spring (2) are fixedly connected to the inner sides of the two clamping rods respectively.

9. The rapid positioning and welding device for tunnel arch frame connecting flange plates as described in claim 1, characterized in that, The main body of the arch frame (7) is an I-beam, and the positioning cavity is an I-shaped cavity.

10. The rapid positioning and welding device for tunnel arch frame connecting flange plates as described in claim 9, characterized in that, The upper end of the positioning cavity is attached to the upper flange of the I-beam, and the middle part is attached to the waist plate of the I-beam.

Images