Vertical guide sleeve

Abstract

The utility model relates to the technical field of aircraft maintenance, and discloses a vertical guide sleeve which comprises a shell and a guide sleeve body. A first abutting plane perpendicular to the first direction is arranged at the bottom of the shell, a containing cavity extending to the first abutting plane is formed in the lower portion of the shell, and a communicating hole extending in the first direction and communicating the top face of the shell with the containing cavity is formed in the upper portion of the shell. The top end of the guide sleeve is fixedly arranged in the communicating hole, the bottom end penetrates through the containing cavity to be exposed out of the shell, and the guide sleeve is provided with a guide hole penetrating through the guide sleeve in the first direction. According to the vertical guide sleeve disclosed by the utility model, the position of a new hole drilled on a new structural member can be accurate, and the perpendicularity, the coaxiality and the centering degree are ensured to meet the requirements.

Description

Technical Field

[0001] This utility model relates to the field of aircraft maintenance technology, and in particular to a vertical guide sleeve. Background Technology

[0002] During aircraft maintenance, critical components and structural parts bearing high-intensity loads must be inspected to detect structural damage such as cracks, corrosion, and deformation. If the damage exceeds acceptable limits after assessment, the component must be repaired, replaced, or modified to ensure the integrity of the aircraft structure and maintain its continued airworthiness. To ensure precise fit between structural components, new components are typically without holes. Therefore, almost all structural repairs require drilling holes in new parts based on existing mating holes. Drilling holes is the most crucial step in the entire structural maintenance process; its accuracy and quality directly affect the repair outcome. The drilling process generally involves: 1. Removing the old, damaged structural component; 2. Matching and fixing the new structural component to the relevant structure as required; 3. Drilling holes in the new structural component based on the existing mating holes. In addition to ensuring the size, accuracy, and surface finish of the holes, the drilling process must also ensure that the newly drilled fastener holes are perpendicular, coaxial, and centered with the original mating structure and holes, preventing secondary damage to related structures during the drilling process.

[0003] Because aircraft structural repair is a reverse repair process, and structural repair is irreversible—once the action is completed, the result cannot be changed—the drilling process plays a decisive role in the entire repair process. Due to the special nature of aircraft structural maintenance work, large tooling cannot be used. In the past, drilling work usually required two people working together: one to operate and the other to visually observe. However, due to differences in human judgment accuracy or skill, slight errors are inevitable, making it difficult to fully guarantee some drilling specifications.

[0004] Therefore, there is an urgent need for a vertical guide sleeve to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a vertical guide sleeve that ensures the accurate positioning of newly drilled holes and that the verticality, coaxiality, and centering meet the requirements.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A vertical guide sleeve, comprising:

[0008] The housing has a first abutting plane perpendicular to a first direction at its bottom, a receiving cavity extending to the first abutting plane at its lower part, and a communicating hole extending along the first direction and connecting the top surface of the housing with the receiving cavity at its upper part.

[0009] The guide sleeve has its top end fixedly disposed in the communicating hole and its bottom end exposed outside the housing through the receiving cavity. The guide sleeve is provided with a guide hole that passes through the guide sleeve along the first direction.

[0010] As an improvement to the above technical solution, the housing and the guide sleeve are coaxially arranged.

[0011] As an improvement to the above technical solution, the receiving cavity is coaxially arranged with the pilot hole.

[0012] As an improvement to the above technical solution, the guide sleeve includes a threaded connection section, the connecting hole is a threaded hole, the threaded connection section is provided with external threads, and the threaded connection section is threadedly connected to the housing.

[0013] As an improvement to the above technical solution, the guide sleeve further includes an abutment section fixedly disposed on the top of the threaded connection section. The abutment section is exposed outside the housing. The top of the housing is provided with a second abutment plane, and the abutment section is provided with a third abutment plane on the side facing the housing.

[0014] As an improvement to the above technical solution, the guide sleeve further includes a guide section fixedly disposed at the bottom of the threaded connection section, the end of the guide section away from the threaded connection section being exposed outside the housing, and the outer contour of the cross section of the guide section perpendicular to the first direction being circular.

[0015] As an improvement to the above technical solution, the diameter of the guide section is smaller than the diameter of the threaded connection section.

[0016] As an improvement to the above technical solution, the central axes of the abutment section, the threaded connection section, and the guide section are collinear.

[0017] As an improvement to the above technical solution, the cross-sectional dimension of the receiving cavity is larger than the cross-sectional dimension of the connecting hole.

[0018] As an improvement to the above technical solution, the top of the abutting section is provided with a fourth abutting plane perpendicular to the first direction.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This utility model's vertical guide sleeve, when drilling holes in new structural components, places the new structural component on one side of the existing mating structural component. The bottom portion of the guide sleeve, exposed in the housing, is inserted into the structural hole on the existing mating structural component from the other side. The first abutting surface on the housing is then attached to the existing mating structural component. Through the engagement of the guide sleeve with the structural hole on the existing mating structural component, and the engagement of the first abutting surface with the existing mating structural component, the pilot hole on the vertical guide sleeve extends along the extension direction of the structural hole on the existing mating structural component. The drill bit passes through the pilot hole and the structural hole on the existing mating structural component to drill a hole in the new structural component, thereby ensuring the accurate positioning of the newly drilled hole in the new structural component and guaranteeing that the perpendicularity, coaxiality, and centering meet the requirements. During the drilling process, the receiving cavity temporarily accommodates the drilling debris, preventing debris from flying out and affecting the drilling operation, and facilitating subsequent debris collection and cleaning. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the vertical guide sleeve provided in this embodiment of the utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of the vertical guide sleeve provided in this embodiment of the utility model. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the structure of the vertical guide sleeve provided in this embodiment of the utility model. Figure 3 ;

[0024] Figure 4 This is a schematic diagram of the structure of the housing of the vertical guide sleeve provided in this embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the vertical guide sleeve provided in this embodiment of the utility model. Figure 1 ;

[0026] Figure 6 This is a schematic diagram of the structure of the vertical guide sleeve provided in this embodiment of the utility model. Figure 2 ;

[0027] Figure 7 This is a schematic diagram of the vertical guide sleeve provided in this embodiment of the present invention being inserted into the structural hole on the original mating structural component.

[0028] In the picture:

[0029] 1. Shell; 11. Receiving cavity; 12. Communicating hole; 13. First abutting surface; 14. Second abutting surface; 15. Necked groove;

[0030] 2. Guide sleeve; 21. Pilot hole; 22. Threaded connection section; 23. Abutment section; 231. Third abutment plane; 232. Fourth abutment plane; 24. Guide section;

[0031] 10. Existing structural components; 101. Structural holes; 20. New structural components. Detailed Implementation

[0032] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] 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 below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] like Figure 1 - Figure 6As shown, this embodiment provides a vertical guide sleeve, including a housing 1 and a guide sleeve 2. The bottom of the housing 1 has a first abutting plane 13 perpendicular to a first direction. The lower part of the housing 1 has a receiving cavity 11 extending to the first abutting plane 13. The top of the housing 1 has a communicating hole 12 extending along the first direction and connecting the top surface of the housing 1 with the receiving cavity 11. The guide sleeve 2 has its top end fixedly disposed within the communicating hole 12, and its bottom end passing through the receiving cavity 11 and protruding from the housing 1. The guide sleeve 2 has a guide hole 21 penetrating the guide sleeve 2 along the first direction.

[0037] like Figure 7 As shown, the vertical guide sleeve provided in this embodiment, when drilling a hole in the new structural component 20, places the new structural component 20 on one side of the original mating structural component 10, inserts the part of the bottom of the guide sleeve 2 exposed outside the housing 1 into the structural hole 101 on the original mating structural component 10 from the other side, and attaches the first abutting surface on the housing 1 to the original mating structural component 10. Through the cooperation between the guide sleeve 2 and the structural hole 101 on the original mating structural component 10, and the cooperation between the first abutting surface and the original mating structural component 10, the guide hole 21 on the vertical guide sleeve extends along the extension direction of the structural hole 101 on the original mating structural component 10. The drill bit passes through the guide hole 21 and the structural hole 101 on the original mating structural component 10 to drill a hole in the new structural component 20, thereby ensuring that the new hole drilled in the new structural component 20 is accurately positioned and that the perpendicularity, coaxiality, and centering meet the requirements. During the drilling process, the receiving cavity 11 serves to temporarily contain the drilling debris, preventing the debris from flying out and affecting the drilling operation, and facilitating the subsequent collection and cleaning of the debris.

[0038] Optionally, such as Figure 1 and Figure 3 As shown, the housing 1 and the guide sleeve 2 are coaxially arranged, and the receiving cavity 11 and the guide hole 21 are coaxially arranged. This facilitates the operation of the vertical guide sleeve.

[0039] Optionally, such as Figure 3 , Figure 5 and Figure 6 As shown, the guide sleeve 2 includes a threaded connection section 22, and the connecting hole 12 is a threaded hole. The threaded connection section 22 is provided with external threads and is threadedly connected to the housing 1. The threaded connection enables the guide sleeve 2 to be detachably fixed to the housing 1, so that the model of the guide sleeve 2 can be changed according to the required borehole diameter. The diameter of the pilot hole 21 is different for different models of guide sleeve 2.

[0040] Furthermore, such as Figure 2 , Figure 5 and Figure 6As shown, the guide sleeve 2 also includes an abutment section 23 fixedly disposed on the top of the threaded connection section 22. The abutment section 23 is exposed outside the housing 1. The top of the housing 1 is provided with a second abutment surface 14, and the abutment section 23 is provided with a third abutment surface 231 on the side facing the housing 1.

[0041] Furthermore, such as Figure 3 , Figure 5 and Figure 6 As shown, the guide sleeve 2 also includes a guide section 24 fixedly disposed at the bottom of the threaded connection section 22. The end of the guide section 24 away from the threaded connection section 22 is exposed outside the housing 1. The outer contour of the cross section of the guide section 24 perpendicular to the first direction is circular, so that the guide section 24 can better guide and cooperate with the structural hole 101 on the original mating structure 10.

[0042] Furthermore, such as Figure 3 , Figure 5 and Figure 6 As shown, the diameter of the guide section 24 is smaller than the diameter of the threaded connection section 22. The smaller diameter of the guide section 24 facilitates the entry of drilling debris into the receiving cavity 11. The diameter of the guide section 24 is equal to the inner diameter of the structural hole 101 on the original mating structure, further improving the coaxiality between the newly drilled hole and the structural hole 101 on the original mating structure.

[0043] Optionally, such as Figure 5 and Figure 6 As shown, the central axes of the abutment section 23, the threaded connection section 22, and the guide section 24 are collinear. This facilitates the machining and manufacturing of the guide sleeve 2.

[0044] Optionally, the cross-sectional dimension of the receiving cavity 11 perpendicular to the first direction is larger than the cross-sectional dimension of the connecting hole 12 perpendicular to the first direction, ensuring that the receiving cavity 11 has a larger volume to accommodate debris.

[0045] Optionally, such as Figure 3 and Figure 4 As shown, the top of the abutment section 23 is provided with a fourth abutment plane 232 perpendicular to the first direction. The fourth abutment plane 232 on the abutment section 23 serves to limit the drilling depth, that is, to stop the drill bit from being inserted too deeply and damaging other structural components.

[0046] Optionally, such as Figure 1 - Figure 4 As shown, the outer peripheral surface of the housing 1 is necked along the middle of the first direction to form a necking groove 15, so as to facilitate the operator to clamp or hold the housing 1.

[0047] Optionally, in this embodiment, the housing 1 is made of plastic with a smooth surface, so that it will not scratch the surface of the original mating structural component 10 when attached to it. In this embodiment, the guide sleeve 2 is made of aluminum, which ensures the structural strength of the guide sleeve 2 and makes it lightweight.

[0048] The vertical guide sleeve provided in this embodiment has an outer shell 1 made of transparent plastic. When using the vertical guide sleeve, it adheres to the surface of the original mating structural component 10 to prevent scratches. The shell 1 and the inner guide sleeve 2 are coaxially designed to ensure that the drilling bit is perpendicular to the original mating structural component 10 and to collect aluminum shavings generated during drilling. The inner guide sleeve 2 is threadedly connected to the outer shell 1, and the embedding depth can be adjusted according to the thickness of the original mating structural component 10. The inner guide sleeve 2 can be replaced according to the hole size to meet multiple needs. After the guide section 24 at the front end of the inner guide sleeve 2 is embedded in the original mating structural component 10, it guides and protects the drill bit, ensuring that the new hole in the new structural component 20 is perpendicular, coaxial, and centered with the original mating structural component 10 and the hole, preventing damage to the surrounding structure. The vertical guide sleeve also acts as a stop for the drill bit, preventing irreversible damage to the internal structure of the aircraft due to excessive drill bit insertion.

[0049] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A vertical guide sleeve, characterized in that, include: The housing (1) has a first abutting plane (13) perpendicular to the first direction at its bottom. The lower part of the housing (1) has a receiving cavity (11) extending to the first abutting plane (13). The upper part of the housing (1) has a communicating hole (12) extending along the first direction and connecting the top surface of the housing (1) with the receiving cavity (11). The guide sleeve (2) has its top end fixedly disposed in the communicating hole (12) and its bottom end exposed outside the housing (1) through the receiving cavity (11). The guide sleeve (2) is provided with a guide hole (21) that passes through the guide sleeve (2) along the first direction.

2. The vertical guide sleeve according to claim 1, characterized in that, The housing (1) and the guide sleeve (2) are coaxially arranged.

3. The vertical guide sleeve according to claim 1, characterized in that, The receiving cavity (11) is coaxially arranged with the guide hole (21).

4. The vertical guide sleeve according to claim 1, characterized in that, The guide sleeve (2) includes a threaded connection section (22), the connecting hole (12) is a threaded hole, the threaded connection section (22) is provided with external threads, and the threaded connection section (22) is threadedly connected to the housing (1).

5. The vertical guide sleeve according to claim 4, characterized in that, The guide sleeve (2) also includes an abutment section (23) fixedly disposed on the top of the threaded connection section (22). The abutment section (23) is exposed outside the housing (1). The top of the housing (1) is provided with a second abutment plane (14), and the abutment section (23) is provided with a third abutment plane (231) on the side facing the housing (1).

6. The vertical guide sleeve according to claim 5, characterized in that, The guide sleeve (2) further includes a guide section (24) fixedly disposed at the bottom of the threaded connection section (22). One end of the guide section (24) away from the threaded connection section (22) is exposed outside the housing (1). The outer contour of the cross section of the guide section (24) perpendicular to the first direction is circular.

7. The vertical guide sleeve according to claim 6, characterized in that, The diameter of the guide section (24) is smaller than the diameter of the threaded connection section (22).

8. The vertical guide sleeve according to claim 7, characterized in that, The central axes of the abutment section (23), the threaded connection section (22), and the guide section (24) are collinear.

9. The vertical guide sleeve according to claim 5, characterized in that, The top of the abutting section (23) is provided with a fourth abutting plane (232) perpendicular to the first direction.

10. The vertical guide sleeve according to any one of claims 1-9, characterized in that, The cross-sectional dimension of the receiving cavity (11) is larger than the cross-sectional dimension of the connecting hole (12).

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