Flange-shaped bent pipe fixing tool

Abstract

The application relates to the technical field of special-shaped pipe clamping, in particular to a flange special-shaped elbow pipe fixing tool, which comprises a cylinder, an opening is arranged on one side of the cylinder wall of the cylinder, an end plate is fixed at one end of the cylinder, a through hole coaxial with the cylinder is arranged on the end plate, a supporting plate is fixed at one side of the end plate, the supporting plate extends along the circumference of the cylinder, the supporting plate is located on the opposite side of the opening on the cylinder, a connecting hole is arranged on the supporting plate, one end of a special-shaped pipe is arranged to extend out of the through hole and be fixed on the supporting plate, and the other end of the special-shaped pipe extends out of the opening of the cylinder. The tool can effectively fix the flange special-shaped elbow pipe and keep the stability of the flange special-shaped elbow pipe during detection.

Description

Technical Field

[0001] This application relates to the field of clamping technology for irregular pipe fittings, and in particular to a fixing fixture for irregular flange bends. Background Technology

[0002] In modern industrial manufacturing, flanged bends are widely used in various industries such as petroleum, chemical, power, and aerospace. These pipe fittings play a crucial role in fluid transport and system connection, and their quality directly affects the safety and reliability of the entire pipeline system.

[0003] With the continuous development of industrial technology and the increasing demands for quality, higher requirements are being placed on the inspection accuracy and efficiency of flange bends. Due to their irregular geometry, flange bends are difficult to position accurately and fix stably during inspection. The lack of specialized fixtures also makes it easy for the inspected bends to shift or deform during measurement, affecting the accuracy of key parameters such as dimensional measurement, wall thickness detection, and surface quality assessment. Utility Model Content

[0004] This application aims to at least partially solve one of the aforementioned technical problems in the prior art. To this end, embodiments of this application provide a flange bend fixing fixture, which can stably fix the flange bend and prevent displacement or deformation of the flange bend during the inspection process.

[0005] A flange-shaped bend fixing fixture includes: A cylindrical body, wherein an opening is provided on one side wall of the cylindrical body; An end plate is fixed to one end of the cylinder, and the end plate is provided with a through hole coaxial with the cylinder. A support plate is fixed to one side of the end plate. The support plate extends circumferentially along the cylinder and is located on the opposite side of the opening on the cylinder. A through connection hole is provided on the support plate. One end of the flange bend extends from the through hole and is fixed to the support plate, while the other end extends from the opening of the cylinder.

[0006] In an optional or preferred embodiment, the wall of the connecting hole is provided with threads.

[0007] In an optional or preferred embodiment, four connection holes are arranged in an array on the support plate.

[0008] In an optional or preferred embodiment, a solid disc is mounted on the end of the cylinder away from the end plate, and a four-jaw chuck is used to clamp the outer wall of the solid disc.

[0009] In an optional or preferred embodiment, a limiting pin is provided on the end plate, and the limiting pin is located on both sides of the support plate.

[0010] In an optional or preferred embodiment, the limiting pin is detachably mounted on the end plate.

[0011] In an optional or preferred embodiment, the opening is a rectangular hole structure.

[0012] Based on the above technical solution, the embodiments of this application have at least the following beneficial effects: During the inspection of the flange bend, the end of the cylinder away from the end plate is clamped and fixed by a four-jaw chuck. One end of the flange bend passes through the opening and then protrudes from the through hole of the end plate. The flange plate at the end of the flange bend fits against the support plate. Then, the holes on the flange plate are aligned with the connecting holes on the support plate and fixed with bolts. In this way, the entire flange bend is fixed on the fixing fixture, and subsequent inspection can be performed directly by the testing instrument. This fixture can effectively fix the flange bend and maintain its stability during inspection. Attached Figure Description

[0013] The present application will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the flange irregular bend fixing tool in the embodiments of this application; Figure 2 This is a schematic diagram of the flange irregular bend fixing fixture in the detection state in the embodiment of this application; Figure 3 This is a schematic diagram of the flange-shaped bend in the embodiment of this application.

[0014] Figure label: 100-Film bend fixing fixture; 200-Cylinder body; 210-Opening; 300-End plate; 310-Through hole; 320-Limit pin; 400-Support plate; 410-Connecting hole; 500-Solid disc; 600-Flame bend; 700-Four-jaw chuck. Detailed Implementation

[0015] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0016] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0018] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0019] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0021] In modern industrial manufacturing, flanged bends are widely used as important connecting components in various industries such as petroleum, chemical, power, and aerospace. These pipe fittings play a crucial role in fluid transport and system connection, and their quality directly affects the safety and reliability of the entire pipeline system.

[0022] With the continuous development of industrial technology and the increasing demands for quality, higher requirements are being placed on the inspection accuracy and efficiency of flange bends. Due to their irregular geometry, flange bends are difficult to position precisely and fix stably during inspection. Furthermore, the lack of specialized fixtures makes the inspected flange bends prone to displacement or deformation during measurement, affecting the accuracy of key parameters such as dimensional measurement, wall thickness detection, and surface quality assessment.

[0023] Reference Figures 1 to 3 This application proposes a flange-shaped bend fixing fixture 100, which includes a cylinder 200, an end plate 300 and a support plate 400.

[0024] An opening 210 is provided on one side wall of the cylinder 200. Specifically, the opening 210 is a rectangular hole structure extending along the axial direction of the cylinder 200. An end plate 300 is fixed to one end of the cylinder 200. The end plate 300 has a through hole 310 coaxial with the cylinder 200. The support plate 400 is a rectangular plate structure. The support plate 400 is vertically fixed to one side of the end plate 300. The support plate 400 extends along the axial direction of the cylinder 200 and is located on the opposite side of the opening 210. A through connection hole 410 is provided on the support plate 400. One end of the flange bend 600 extends out of the through hole 310 and is fixed to the support plate 400, and the other end extends out of the opening 210 of the cylinder 200.

[0025] The cylinder 200 is a cylindrical structure with an axially extending cavity. The end plate 300 is a circular plate welded to the end of the cylinder 200. Its through hole 310 has a diameter slightly larger than the outer diameter of the pipe and is used to guide the axial positioning of the pipe.

[0026] During the inspection of the flange bend 600, the end of the cylinder 200 furthest from the end plate 300 is clamped and fixed by a four-jaw chuck 700. One end of the flange bend 600 passes through the opening 210 and extends out from the through hole 310 of the end plate 300. The flange plate 610 at the end of the flange bend 600 is fitted against the support plate 400. Then, the holes on the flange plate 610 are aligned with the connecting holes 410 on the support plate 400 and fixed with bolts. In this way, the entire flange bend 600 is fixed on this fixture, and subsequent inspection can be performed directly by the testing instrument. This fixture effectively fixes the flange bend 600, preventing displacement or deformation during the inspection process and maintaining the stability of the flange bend 600 during inspection.

[0027] In some embodiments, threads are provided on the wall of the connecting hole 410. This allows the support plate 400 to be fixed to the flange plate 610 on the flange bend by directly tightening bolts inside the connecting hole 410, achieving a rigid connection between the flange bend 600 and the support plate 400, effectively suppressing displacement and rotation caused by vibration or external force during the testing process.

[0028] Furthermore, the support plate 400 of this application has four connection holes 410 arranged in an array. This can be achieved using a rectangular array or a circular array.

[0029] In the embodiment shown in this application, four connection holes 410 are provided, and the four connection holes 410 are distributed in a rectangular shape at the four corners of the support plate 400.

[0030] In some embodiments, a solid disc 500 is mounted on the end of the cylinder 200 away from the end plate 300, and a four-jaw chuck 700 is used to clamp the outer wall of the solid disc 500. Traditional tooling directly clamps the thin-walled cylinder 200, which can easily cause the cylinder wall to dent and deform, resulting in a shift in the detection reference. This solution adds an independent solid disc 500 structure to physically isolate the clamping area from the functional area. The clamping force is applied only to the disc with sufficient rigidity, thus maintaining the structural integrity of the cylinder 200.

[0031] In some embodiments, a limiting pin 320 is provided on the end plate 300, and the limiting pin 320 is located on both sides of the support plate 400. The limiting pin 320 refers to a rigid component used to form a mechanical barrier to prevent the flange bend 600 from swaying on both sides of the support plate 400.

[0032] In some embodiments, the limiting pin 320 is detachably mounted on the end plate 300. Specifically, it can be achieved by threaded connection, snap-fit ​​connection or pin connection, which facilitates the removal of the limiting pin 320.

[0033] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A flange-shaped bend fixing fixture, characterized in that, include: A cylindrical body, wherein an opening is provided on one side wall of the cylindrical body; An end plate is fixed to one end of the cylinder, and the end plate is provided with a through hole coaxial with the cylinder. A support plate is fixed to one side of the end plate. The support plate extends circumferentially along the cylinder and is located on the opposite side of the opening on the cylinder. A through connection hole is provided on the support plate. One end of the flange bend extends from the through hole and is fixed to the support plate, while the other end extends from the opening of the cylinder.

2. The flange-shaped bend fixing fixture according to claim 1, characterized in that: The connecting hole has threads on its wall.

3. The flange-shaped bend fixing fixture according to claim 1, characterized in that: The support plate has four connection holes arranged in an array.

4. The flange-shaped bend fixing fixture according to claim 1, characterized in that: A solid disc is installed at the end of the cylinder away from the end plate, and a four-jaw chuck is used to clamp the outer wall of the solid disc.

5. The flange-shaped bend fixing fixture according to claim 1, characterized in that: The end plate is provided with limiting pins, which are located on both sides of the support plate.

6. The flange-shaped bend fixing fixture according to claim 5, characterized in that: The limiting pin can be detachably installed on the end plate.

7. The flange-shaped bend fixing fixture according to claim 1, characterized in that: The opening is a rectangular hole structure.

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