Aerospace pipeline butt joint tool

Abstract

The utility model relates to the field of spaceflight pipeline butt joint, in particular to a spaceflight pipeline butt joint tool which comprises two clamping half pieces. The clamping half piece is provided with an operation cavity penetrating through the butt joint face and the operation face of the clamping half piece, and the operation face is opposite to the butt joint face; the two opposite side walls of the clamping half pieces are provided with half clamping grooves which are concaved inwards from the butt joint faces, and the half clamping grooves are communicated to the outside through the operation cavity. The two clamping half pieces are detachably connected, the butt joint faces of the two clamping half pieces are attached to each other, and the half clamping grooves in the connected side walls of the two clamping half pieces are communicated in a butt joint mode. The spaceflight pipeline butt joint tool is simple in structure, can be used for guaranteeing the concentricity of the two pipeline joints, is used for spot welding of the two pipeline joints, is used for visual observation and calibration in the assembly process, is used for simulating the two pipeline joints which are not welded into finished products to be subjected to rocket-on trial assembly, and is high in practicability. Therefore, the spaceflight pipeline butt joint tool has multiple functions and can be used for multiple procedures.

Description

Technical Field

[0001] This application relates to the field of aerospace pipeline docking, and in particular to an aerospace pipeline docking tooling. Background Technology

[0002] In the fabrication of pipelines for aerospace equipment, copper mandrels are typically used for through-hole positioning to ensure the coaxiality of the aerospace pipeline assembly. However, the copper mandrel through-hole positioning method does not provide positioning functionality during the assembly stage; it does not provide axial fixation functionality during welding; and it does not allow for trial assembly of structural components before welding, making it impossible to confirm in advance whether the post-weld workpiece condition meets the final assembly requirements.

[0003] Therefore, how to make aerospace pipeline docking fixtures meet the requirements of different processes is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] This application provides an aerospace pipeline docking fixture, which enables the aerospace pipeline docking fixture to meet the requirements of different processes.

[0005] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0006] A spacecraft pipeline docking fixture includes: two clamping halves; each clamping half has an operating cavity that extends through its docking surface and its operating surface, with the operating surface opposite to the docking surface; two opposite sidewalls of the clamping half have semi-grooves that are concave inward from the docking surface, and the semi-grooves extend from the operating cavity to the outside; the two clamping halves are detachably connected, and the docking surfaces of the two clamping halves fit together, with the semi-grooves on the connecting sidewalls of the two clamping halves connecting and communicating.

[0007] In the aerospace pipeline docking fixture described above, preferably, the clamping half has multiple through fixing holes, the axial direction of each fixing hole being the same as the through direction of the operating cavity; bolts pass through the fixing holes of two opposing clamping half to detachably connect the two clamping half.

[0008] In the aerospace pipeline docking fixture described above, preferably, the portion of the clamping half near the docking surface extends outward compared to the portion of the clamping half near the operating surface, and the fixing hole is located on the outwardly extended portion.

[0009] In the aerospace pipeline docking fixture described above, preferably, the left outward-extending portion of the clamping half has two fixing holes, and the right outward-extending portion of the clamping half has two fixing holes.

[0010] In the aerospace piping docking fixture described above, preferably, one clamping half has an assembly guide post on its left outward extending portion and another assembly guide post on its right outward extending portion, with each assembly guide post extending away from the docking surface; the other clamping half has a through guide hole on its left outward extending portion and another through guide hole on its right outward extending portion, with the axial direction of each guide hole being the same as the axial direction of the fixing hole; the assembly guide post of one clamping half passes through the opposite guide hole of the other clamping half for positioning.

[0011] In the aerospace pipeline docking fixture described above, preferably, each assembly guide post is located in the middle of the two fixing holes on that side, and each guide hole is located in the middle of the two fixing holes on that side.

[0012] In the aerospace pipeline docking fixture described above, preferably, the edge of each half-slot is an arc, and the circle containing the arc of each half-slot is eccentrically outward.

[0013] In the aerospace pipeline docking fixture described above, preferably, the operating cavity gradually expands outward from the edge of the portion near the docking surface to the portion near the operating surface.

[0014] In the aerospace pipeline docking fixture described above, preferably, the part of the operating cavity near the docking surface is a cuboid, the part of the operating cavity near the operating surface is a truncated pyramid, and the bottom surface of the truncated pyramid is located on the side of the operating surface.

[0015] Compared to the aforementioned background technology, the aerospace pipeline docking fixture of this application has a simple structure and can be used to ensure the concentricity of two pipeline joints, to spot weld two pipeline joints, to perform visual observation and calibration during the assembly process, and to simulate two unwelded pipeline joints as finished parts for trial assembly on a rocket. Therefore, the aerospace pipeline docking fixture of this application has multiple functions and can be used in multiple processes. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a perspective view of the clamping half of the aerospace pipeline docking fixture provided in the embodiments of this application;

[0018] Figure 2This is a front view of the clamping half of the aerospace pipeline docking fixture provided in the embodiments of this application;

[0019] Figure 3 This is a bottom view of the clamping half of the aerospace pipeline docking fixture provided in the embodiments of this application. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. Additionally, spatial relationship terms such as "upper," "lower," "left," "right," "front," and "rear" are used for ease of description to explain the positional relationship between two components. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] like Figures 1 to 3 As shown, this application provides an aerospace pipeline docking fixture, comprising: two clamping halves 100; each clamping half 100 has an operating cavity 110 through which its docking surface and its operating surface pass, the operating surface and the docking surface being two opposite surfaces of the clamping half 100; two opposite sidewalls of the clamping half 100 have semi-grooves 120 recessed from the docking surface, and the semi-grooves 120 extend from the operating cavity 110 to the outside; the two clamping halves 100 are detachably connected, and the docking surfaces of the two clamping halves 100 fit together, and the semi-grooves 120 on the sidewalls of the two clamping halves 100 are connected.

[0022] Optionally, the clamping half 100 has multiple through fixing holes 130, the axial direction of each fixing hole 130 being the same as the through direction of the operating cavity 110; bolts pass through the opposing fixing holes 130 of two clamping half 100s to detachably connect the two clamping half 100s. Alternatively, the portion of the clamping half 100 near the mating surface extends outwards than the portion near the operating surface, and the fixing holes 130 are located on the outwardly extended portion. Still optional, the left outwardly extended portion of the clamping half 100 has two fixing holes 130, and the right outwardly extended portion of the clamping half 100 has two fixing holes 130. Still optional, the clamping half 100 is made of aluminum alloy, which, compared to copper, has greater structural strength, less wear, and consistently accurate precision.

[0023] Optionally, one clamping half 100 has an assembly guide post 140 on its left outward extending portion and another assembly guide post 140 on its right outward extending portion, with each assembly guide post 140 extending away from the mating surface; the other clamping half 100 has a through guide hole on its left outward extending portion and a through guide hole on its right outward extending portion, with the axial direction of each guide hole being the same as the axial direction of the fixing hole 130; the assembly guide post 140 of one clamping half 100 passes through the corresponding guide hole of the other clamping half 100, thereby positioning the two clamping half 100s during assembly, facilitating assembly. Alternatively, each assembly guide post 140 is located between the two fixing holes 130 on that side, and each guide hole is located between the two fixing holes 130 on that side.

[0024] Optionally, the edge of each semi-slot 120 is an arc, and the circle containing the arc of each semi-slot 120 is eccentrically outward, meaning the center of the circle is located outside the corresponding clamping half 100. Thus, after the semi-slots 120 on the sidewalls where two clamping half 100s meet are connected, the pipeline can be eccentrically clamped. Alternatively, the operating cavity 110 gradually expands outward from the part near the mating surface to the part near the operating surface, meaning its cross-sectional area gradually increases, facilitating spot welding of the pipeline located within the operating cavity 110 from the operating surface side. Still alternatively, the part of the operating cavity 110 near the mating surface is rectangular, and the part near the operating surface is a frustum, with the base of the frustum located on the operating surface side.

[0025] When using the aerospace pipeline docking fixture of this application, two clamping half-pieces 100 of appropriate size are selected according to the outer diameter of the pipe and pipe joint parts. Then, the two pipe joints are placed in the two semi-slots 120 of one clamping half-piece 100, respectively. Next, the other clamping half-piece 100 is fastened onto the first clamping half-piece 100, so that the two pipe joints are also placed in the two semi-slots 120 of the other clamping half-piece 100. The mating surfaces of the two clamping half-pieces 100 are brought together and fixed together, thus clamping the two pipe joints and ensuring the concentricity requirement of the two pipe joints, achieving the welding assembly accuracy requirement. Then, on the mating surface side, the operating cavity 110 can be inserted to spot weld the two pipe joints, which can also be used for visual observation and calibration during the assembly process. In addition, after assembling the two clamping half-pieces 100 by bolting, continuous stability can be maintained, and the two unwelded pipe joints can be simulated as finished parts for trial assembly on a rocket. The aerospace pipeline docking fixture of this application has a simple structure, multiple functions, and can be used in multiple processes.

[0026] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A space pipeline docking fixture, characterized in that, include: Two clamping halves; The clamping half has an operating cavity that runs through its mating surface and its operating surface. The operating surface and the mating surface are opposite each other. The part of the operating cavity near the mating surface is shaped like a cuboid, and the part of the operating cavity near the operating surface is shaped like a truncated pyramid. The base of the truncated pyramid is located on the side of the operating surface. Thus, the edge of the operating cavity gradually expands outward from the part near the mating surface to the part near the operating surface, so that the operator can spot weld the pipeline located in the operating cavity from the side of the operating surface. The two opposite sidewalls of the clamping half have concave semi-grooves from the mating surface, and the semi-grooves extend from the operating cavity to the outside. The edge of each semi-grooves is an arc, and the circle containing the arc of each semi-grooves is eccentrically outward. The two clamping halves are detachably connected, and the mating surfaces of the two clamping halves fit together. The half-slots on the side walls where the two clamping halves meet are connected to each other, thus eccentrically clamping the pipeline.

2. The aerospace pipeline docking fixture according to claim 1, characterized in that, The clamping half has multiple through fixing holes, and the axial direction of each fixing hole is the same as the through direction of the operating cavity. Bolts are passed through the opposing fixing holes of the two clamping halves to detachably connect the two clamping halves.

3. The aerospace pipeline docking fixture according to claim 2, characterized in that, The part of the clamping half that is closer to the mating surface extends outward from the part of the clamping half that is closer to the operating surface, and the fixing hole is located on the outwardly extended part.

4. The aerospace pipeline docking fixture according to claim 3, characterized in that, The left side of the clamping half has two fixing holes, and the right side of the clamping half has two fixing holes.

5. The aerospace pipeline docking fixture according to claim 4, characterized in that, An assembly guide post is provided on the left outwardly extending portion of a clamping half, and an assembly guide post is provided on the right outwardly extending portion of the clamping half, with each assembly guide post extending in a direction away from the mating surface. Another clamping half has a through guide hole on the left outward extending portion and a through guide hole on the right outward extending portion, and the axial direction of each guide hole is the same as the axial direction of the fixing hole. An assembly guide post for one clamping half passes through an opposing guide hole of the other clamping half for positioning.

6. The aerospace pipeline docking fixture according to claim 5, characterized in that, Each assembly guide post is located between the two fixing holes on this side, and each guide hole is located between the two fixing holes on this side.

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