U-shaped pipe bending angle detection tool

Abstract

The utility model discloses a U-shaped pipe bending angle detection tool. The device comprises an upper fixing assembly and a lower supporting assembly, the upper fixing assembly and the lower supporting assembly are vertically connected and fixed from top to bottom through fastening screws, the lower end of the upper fixing assembly and the upper end of the lower supporting assembly jointly form two pipe bending holes which are through front and back, and the pipe bending holes are used for containing two parallel ends of a U-shaped pipe respectively. The central axes of the pipe bending holes are arranged in a 180-degree mode, and the opening size and shape are matched with the outer diameter and the bending form of the U-shaped pipe, so that it is guaranteed that the U-shaped pipe with the bending angle of 180 degrees can be smoothly inserted. The utility model has the advantages that: through vertical connection of the uniformly distributed fastening screws, the tightness and deformation resistance of the whole structure are ensured, and the structure is suitable for long-time use; the central axes of the pipe bending holes are arranged at 180 degrees, the size and the shape of the opening are precisely designed, the opening is tightly matched with the outer diameter and the shape of the U-shaped pipe, the bending angle of the U-shaped pipe can be effectively limited and inspected, and the accuracy of the inspection result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of U-shaped pipe processing, in particular to a U-shaped pipe bending angle detection tool. Background Art

[0002] U-tubes are common and important components in the industrial field, widely used in equipment such as heat exchangers, boilers, and piping systems. The bending angle of the U-tube directly affects the assembly accuracy of its components and the overall performance of the equipment. However, in actual production, due to factors such as processing errors and material elastic recovery, the bending angle of the U-tube can easily deviate from the design standard. If the bending angle does not meet the requirements, it will not only affect assembly accuracy but also cause stress concentration, leakage, and even failure during equipment operation, thereby affecting the safety and reliability of the system.

[0003] Currently, the detection of U-shaped tube bend angles primarily relies on manual measurement or simple fixtures. This approach presents numerous practical challenges. For one thing, manual measurement requires multiple comparisons, which is tedious and time-consuming. Traditional fixtures, while mostly universal in design, struggle to guarantee accurate detection, especially when adapting to varying U-shaped tube specifications. Furthermore, traditional detection methods often make it difficult to promptly correct minor deviations from the standard, complicating automated production lines and leading to wasted resources and even rework.

[0004] To address these issues, an improved U-tube bending angle detection tool is urgently needed. Through a rational structural design, it can accurately detect the bending angle of the U-tube while improving operational efficiency and adaptability. Furthermore, this tool should provide technical support for subsequent assembly and automated welding processes, meeting the high efficiency and high precision demands of modern industrial production. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide a U-shaped tube bending angle detection tool which is convenient to operate, has high inspection accuracy and can correct small deviations in time.

[0006] In order to solve the above technical problems, the U-shaped tube bending angle detection tooling of the present invention includes an upper fixing assembly and a lower supporting assembly. The upper fixing assembly and the lower supporting assembly are vertically connected and fixed from top to bottom by fastening screws. The lower end of the upper fixing assembly and the upper end of the lower supporting assembly jointly form two front-to-back through-bend holes. The bend holes are respectively used to accommodate the two parallel ends of the U-shaped tube. The central axis of the bend hole is arranged at 180° and the opening size and shape match the outer diameter and bending shape of the U-shaped tube, thereby ensuring that the U-shaped tube with a bending angle of 180° can be smoothly inserted.

[0007] The upper surface of the upper fixing assembly is configured to have a concave-convex structure, wherein the concave portion is used for installing a fastening screw.

[0008] At least three fastening screws are provided between the upper fixing assembly and the lower supporting assembly for locking.

[0009] The fastening screws are evenly arranged along the length direction of the upper fixing assembly.

[0010] The fastening screw is a hexagonal screw.

[0011] advantage:

[0012] (1) The upper fixing assembly and the lower supporting assembly are vertically connected by multiple evenly distributed fastening screws to ensure the tightness and anti-deformation ability of the overall structure, making it suitable for long-term use.

[0013] (2) After the U-shaped tube is inserted into the bending hole, the precise matching of the bending hole with the outer diameter and bending shape of the U-shaped tube can quickly determine whether the bending angle of the U-shaped tube meets the design requirements.

[0014] (3) When the angle deviation of the U-shaped tube is small, the U-shaped tube can be corrected by adjusting the positions of the two ends of the bend to bring it to the standard state. This not only improves the flexibility of detection, but also effectively avoids subsequent problems caused by minor deviations not being discovered in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of the U-shaped tube bending angle detection tooling of the utility model;

[0016] Figure 2 This is a top view of the U-shaped tube bending angle detection tooling of the utility model;

[0017] Figure 3 This is a side view of the U-shaped tube bending angle detection tooling of the utility model cutting along the center line. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the U-shaped tube bending angle detection tool of the present invention in conjunction with the accompanying drawings and specific implementation methods. Example

[0019] The U-shaped tube bending angle detection tool of the present invention includes an upper fixing component 1 and a lower supporting component 2, and the upper fixing component 1 and the lower supporting component 2 are vertically connected and fixed from top to bottom by three fastening screws 3, and the fastening screws 3 are evenly arranged along the length direction of the upper fixing component 1 to ensure that the tool is evenly stressed during connection, enhance the stability of the overall structure, and avoid deformation or loosening of the component due to excessive local stress; the upper surface of the upper fixing component 1 has a concave-convex structure, wherein the concave portion provides an installation position for the fastening screws 3, which is convenient for fastening and disassembly operations, and the convex portion plays a role in enhancing the local strength of the component, thereby improving the pressure resistance and service life of the entire tool; the lower end of the upper fixing component 1 and the lower supporting component The upper ends of the two finned tubes 2 together form two through-and-through bend holes 4. These bend holes 4 have a preset axis angle and shape, with the central axis aligned at 180°. They are specifically designed to accommodate the two parallel ends of the U-shaped tube. The opening size of the bend holes 4 closely matches the outer diameter of the U-shaped tube, and the shape design adapts to the bending form of the U-shaped tube, ensuring that the U-shaped tube is stably fixed and presents its actual bending shape during insertion. When the bending angle of the U-shaped tube meets the design requirements (e.g., 180°), its two ends can be accurately inserted into the bend holes 4, thereby allowing for quick and intuitive verification of the bending quality of the U-shaped tube. This tooling also provides a foundation for the subsequent precise assembly of the U-shaped tube and the finned tube, meeting the process requirements of automated welding. Furthermore, for U-shaped tubes that are close to the standard but still have slight deviations, the bending angle of the U-shaped tube can be corrected by loosening and tightening the fastening screws 3, improving the pass rate and reducing production costs.

[0020] The design has a reasonable structure, convenient operation and high inspection accuracy, and can be applied to inspection scenarios with the same specifications but different wall thicknesses.

Claims

1. U-tube bending angle detection tooling, characterized by: The invention comprises an upper fixing assembly (1) and a lower supporting assembly (2), wherein the upper fixing assembly (1) and the lower supporting assembly (2) are vertically connected and fixed from top to bottom by fastening screws (3), and the lower end of the upper fixing assembly (1) and the upper end of the lower supporting assembly (2) jointly form two front-to-back through-bend holes (4), wherein the bend holes (4) are respectively used to accommodate two parallel ends of a U-shaped tube, and the central axis of the bend holes (4) is arranged at 180 degrees.

2. The U-shaped tube bending angle detection tool according to claim 1, characterized in that: The upper surface of the upper fixing assembly (1) is configured to have a concave-convex structure, wherein the concave portion is used to install the fastening screw (3).

3. The U-shaped tube bending angle detection tool according to claim 2, characterized in that: At least three fastening screws (3) are provided between the upper fixing assembly (1) and the lower supporting assembly (2) for locking.

4. The U-shaped tube bending angle detection tool according to claim 3, characterized in that: The fastening screws (3) are evenly arranged along the length direction of the upper fixing component (1).

5. The U-shaped tube bending angle detection tool according to claim 4, characterized in that: The fastening screw (3) is a hexagonal screw.

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