A processing tool for an aviation industry joint
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN HUITENG AVIATION TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-21
Smart Images
Figure CN224526563U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of aero-engine parts processing technology, specifically relating to a processing fixture for a connector used in the aerospace industry. Background Technology
[0002] As an indispensable key component in aviation systems, aviation joints undertake crucial functions such as connection, conduction, and sealing. In numerous subsystems of aircraft, such as fuel systems, hydraulic systems, and pneumatic systems, aviation joints are like joints in the human body, ensuring stable and reliable collaborative operation between various components.
[0003] Taking the fuel system as an example, aviation connectors need to precisely connect fuel lines to ensure that fuel can be smoothly and leak-free delivered to critical components such as the engine. If an aviation connector has problems such as poor sealing or loose connection, fuel leakage will not only lead to fuel waste and increased flight costs, but may also cause serious safety accidents such as fires, directly threatening the lives of the aircraft and its occupants. In hydraulic systems, aviation connectors are responsible for transmitting high-pressure hydraulic oil, providing power to actuators such as flight control surfaces and landing gear retraction and extension. Their performance directly affects the accuracy and reliability of flight operations. If an aviation connector malfunctions, it may lead to flight control failure and catastrophic consequences. Therefore, the quality and performance of aviation connectors are of irreplaceable importance for the safe operation and efficient flight of aircraft, as well as the stable development of the entire aviation industry.
[0004] Currently, in the machining of aerospace connectors, conventional three-jaw chucks cannot meet the clamping requirements due to the non-circular structure of the large end of the connector. While three-jaw chucks achieve automatic centering and clamping of circular workpieces through the synchronized movement of the three jaws, they cannot provide stable and uniform clamping force for the non-circular large end of aerospace connectors. This can easily lead to workpiece loosening and displacement during machining, affecting machining accuracy and product quality. Therefore, in actual production, manual clamping using four-jaw chucks is often necessary.
[0005] However, the four-jaw chuck clamping method has significant drawbacks. When clamping aviation connectors, repeated centering adjustments are required to ensure that the workpiece center coincides with the machine tool spindle center. This process not only demands extremely high skills and experience from the operator but is also time-consuming and labor-intensive.
[0006] Machining the high-precision sealing surface of aerospace connectors is a challenging and crucial step in the entire machining process. Currently, conventional lathes have many limitations in machining high-precision sealing surfaces. The spindle accuracy, feed system accuracy, and machine tool rigidity of conventional lathes cannot meet the requirements for high-precision sealing surface machining. During the machining process, conventional lathes are prone to vibration and errors, resulting in poor surface quality and out-of-tolerance dimensional accuracy of the sealing surface.
[0007] In summary, existing aerospace joint processing technologies have many problems in clamping and sealing surface processing, which seriously restrict the improvement of aerospace joint processing quality and production efficiency. There is an urgent need to develop new processing technologies and processes to solve these problems. Utility Model Content
[0008] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a processing tooling for connectors used in the aerospace industry.
[0009] To achieve the above objectives, the present invention adopts the following technical solution:
[0010] A machining fixture for a connector used in the aerospace industry includes a fixture body with an assembly groove in the middle and an assembly gap at the center of the assembly groove.
[0011] A through hole is provided at the bottom of the assembly slot.
[0012] One end of the assembly gap extends to the edge of the tooling body, forming a gap; the other end terminates on the inner side of the edge of the tooling body.
[0013] The four ends of the assembly slot have grooves.
[0014] The groove is a rounded groove.
[0015] Includes a connector, which is installed in an assembly slot.
[0016] The dimensions of the connector are adapted to the dimensions of the assembly slot.
[0017] The tooling body is an elastic component.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] This invention provides a machining fixture for connectors used in the aerospace industry, comprising a fixture body with an assembly groove in the middle and an assembly gap at the center of the axially extending assembly groove. The connector is installed in the assembly groove. The fixture body expands due to elastic deformation and then springs back to clamp the connector. The assembly gap ensures that the connector and fixture body can accommodate the connector's dimensional tolerances during assembly while providing clamping force to prevent loosening. The dimensional adaptation design between the assembly groove and the connector ensures the accuracy and stability of connector installation, making it particularly suitable for the high-precision assembly requirements of the aerospace industry.
[0020] Furthermore, the through holes at the bottom of the assembly slot can be used to assist in machining or for positioning in conjunction with other tooling; the four-end rounded corner groove design reduces stress concentration and extends the tooling life. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the connector of this utility model;
[0024] Figure 3 This is a schematic diagram of the assembly structure of this utility model;
[0025] The following are the annotations in the attached figures: 1. Tooling body; 2. Assembly groove; 3. Assembly gap; 4. Through hole; 5. Groove; 6. Joint. Detailed Implementation
[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "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 are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.
[0028] 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 one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a communication 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.
[0032] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.
[0033] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0034] The accompanying drawings show various structural schematic diagrams according to embodiments of the present invention. These drawings are not to scale, and some details have been enlarged and may have been omitted for clarity. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.
[0035] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0036] Example 1
[0037] A machining fixture for connectors used in the aerospace industry has the following structural components:
[0038] like Figures 1-3 As shown, a processing fixture for a connector used in the aerospace industry includes a fixture body 1. An assembly groove 2 is formed in the middle of the fixture body 1. An assembly gap 3 is formed at the axial center position of the assembly groove 2. One end of the assembly gap 3 terminates at the inner edge of the fixture body 1, and the other end extends to the edge of the fixture body 1 to form a gap.
[0039] Preferably, a through hole 4 is provided at the bottom of the assembly groove 2, which can be used for positioning during drilling or for positioning in conjunction with other tooling.
[0040] Preferably, circular grooves 5 are provided at the four ends of the assembly groove 2. After the joint 6 is assembled, the grooves 5 disperse the angular stress of the groove and avoid cracks from long-term use. The size of the joint 6 is adapted to the size of the assembly groove 2.
[0041] Preferably, the tooling body 1 is an elastic element, whose elastic properties allow the joint 6 to be repeatedly disassembled and reassembled without deformation.
[0042] Example 2
[0043] A machining fixture for connectors used in the aerospace industry, the method of use of which is as follows:
[0044] Push the connector 6 into the assembly slot 2. Since the tooling body 1 is an elastic component, the assembly gap 3 will open slightly when the connector 6 is pushed in, ensuring that the connector 6 is smoothly embedded. Process the connector 6. After processing, remove the connector 6. If the connector 6 is difficult to remove due to the large clamping force, it can be pushed out from the through hole 4.
[0045] Finally, it should be noted that the above embodiments only describe the basic principles, main features, and advantages of this utility model. For those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0046] 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 be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications made to the technical solutions based on the technical concept proposed by this utility model shall fall within the scope of protection of the claims of this utility model.
Claims
1. A machining fixture for connectors used in the aerospace industry, characterized in that, It includes a tooling body (1), an assembly groove (2) is opened in the middle of the tooling body (1), and an assembly gap (3) is opened at the center position of the axially penetrating assembly groove (2).
2. The machining fixture for aerospace industry connectors according to claim 1, characterized in that, The bottom of the assembly groove (2) is provided with a through hole (4).
3. The machining fixture for aerospace industry connectors according to claim 1, characterized in that, One end of the assembly gap (3) extends to the edge of the tooling body (1) to form a gap; the other end terminates on the inner side of the edge of the tooling body (1).
4. The machining fixture for aerospace industry connectors according to claim 1, characterized in that, The four ends of the assembly groove (2) are provided with grooves (5).
5. The machining fixture for aerospace industry connectors according to claim 4, characterized in that, The groove (5) is a rounded groove.
6. The machining fixture for aerospace industry connectors according to claim 1, characterized in that, Includes a connector (6), which is installed in the assembly slot (2).
7. The machining fixture for aerospace industry connectors according to claim 6, characterized in that, The dimensions of the connector (6) are adapted to the dimensions of the assembly slot (2).
8. The machining fixture for aerospace industry connectors according to claim 1, characterized in that, The tooling body (1) is an elastic component.