Aircraft skin quick depth setting drilling limiting device

Abstract

The utility model discloses a kind of aircraft skin quick depth setting drilling limiting device, including limiting cylinder, clamping bolt and measuring cylinder, limiting cylinder middle part is equipped with a limiting hole, limiting cylinder upper end side is equipped with a hole for clamping bolt to pass through, measuring cylinder middle part is equipped with a through-hole, limiting cylinder is sleeved on measuring cylinder one end, and limiting hole is located in the through-hole of measuring cylinder middle part, length can be adjusted by rotating measuring cylinder between measuring cylinder and limiting cylinder, to control the depth of drill bit drilling, measuring cylinder one end is equipped with scale line, the initial position of scale line is at the shoulder of measuring cylinder, drill bit passes through limiting hole to the bottom plane of measuring cylinder is flush with the bottom of drill bit, and is fixed by clamping bolt;The utility model has the advantages that: effectively avoid the internal structure of aircraft when drilling operation is performed to aircraft skin, improve the accuracy and reliability of aircraft skin drilling, ensure the quality of aircraft skin drilling.

Description

Technical Field

[0001] This utility model relates to aircraft skin drilling technology, specifically to an improvement on the method of drilling holes in aircraft fuselage and wing skin, and more specifically, to a rapid depth-limiting drilling device for aircraft skin. Background Technology

[0002] During aircraft assembly, drilling is frequently required on the aircraft skin. Without depth control, this can easily damage the internal structure of the aircraft (such as fuel tanks and composite materials). Traditional aircraft drilling equipment requires measuring the drill bit length with tools like a tape measure to limit the depth, followed by simple methods like wrapping tape. These methods are not only time-consuming and labor-intensive, but also provide only a rough control of the depth, lacking precision and severely impacting drilling efficiency. They can also adversely affect the internal structure of the product. Chinese patent CN222245186U discloses a drilling device for a wood board drilling machine. This device includes an inspection bar. When the floating tube retracts to a certain length, the inspection bar engages with a sensor. When the floating tube is extended, the distance between the inspection bar and the sensor is set to determine the drilling depth. However, this device is not suitable for onboard operations by workers during the final assembly stage of the aircraft, as it is time-consuming and inconvenient to operate. Chinese patent CN222154696U discloses a drilling device for machining electric spiral pressure screws. This device solves the problem that existing drilling devices cannot accurately adjust the drilling depth. However, the device has a complex structure, high price, and large size. It is not suitable for on-aircraft operation and can easily damage the aircraft.

[0003] Therefore, traditional limiting methods cannot efficiently and accurately control drill bit depth, and professional drill bit limiting devices are needed to control drill bit depth. Utility Model Content

[0004] The purpose of this invention is to provide a rapid depth-determining drilling limit device for aircraft skin, which enables efficient and accurate control of drilling depth in aircraft skin.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a rapid depth-determining drilling limiting device for aircraft skin, comprising a limiting cylinder, a locking bolt, and a measuring cylinder. The limiting cylinder has a limiting hole in the middle and a hole for the locking bolt to pass through on the upper side of the limiting cylinder. The measuring cylinder is a T-shaped rotating body with a through hole in the middle. The limiting cylinder is fitted onto the smaller diameter rotating body of the measuring cylinder, and the limiting hole is located in the through hole in the middle of the measuring cylinder. The length between the measuring cylinder and the limiting cylinder can be adjusted by rotating the measuring cylinder, thereby controlling the drilling depth of the drill bit. The outer wall of the smaller diameter rotating body of the measuring cylinder has a scale line. The initial position of the scale line is set at the connection between the inspection strip and the larger diameter rotating body of the measuring cylinder. The drill bit passes through the limiting hole until the bottom plane of the measuring cylinder is flush with the bottom of the drill bit, and is fixed by the locking bolt.

[0006] Furthermore, a gap is left between the outer wall of the limiting hole and the inner wall of the limiting cylinder to accommodate a small-diameter rotating body of the measuring cylinder.

[0007] Furthermore, the outer wall of the limiting hole is provided with threads.

[0008] Furthermore, the through hole in the middle of the measuring cylinder is a threaded through hole, and the thread on the threaded through hole matches the thread on the outer wall of the limiting hole. The measuring cylinder is connected to the thread on the outer wall of the limiting hole through the threaded through hole.

[0009] Furthermore, after the drill bit passes through the limiting hole until the bottom plane of the measuring cylinder is flush with the bottom of the drill bit, the limiting cylinder is rotated back to the initial position of the measuring cylinder, and the exposed part of the drill bit is the depth to be drilled into the aircraft skin.

[0010] Furthermore, the scale lines include a "0" scale line, with the initial position being the "0" scale line.

[0011] The working principle of this utility model is as follows: The limiting device consists of three parts: a limiting cylinder, a locking bolt, and a measuring cylinder. The limiting cylinder is connected to the locking bolt and the measuring cylinder by threads. The limiting cylinder has a limiting hole at its top, and the measuring cylinder has graduations. Before limiting the drill bit length, the limiting cylinder is rotated to the initial position of the measuring cylinder (graduation 0). After determining the drilling depth of the skin, the limiting cylinder is rotated to the corresponding graduation, and then the drill bit is inserted into the limiting hole, penetrating the entire device until the bottom plane of the measuring cylinder is flush with the bottom of the drill bit. The locking bolt is then tightened to ensure a tight fit between the drill bit and the device. Finally, the limiting cylinder is rotated back to the initial position of the measuring cylinder, and the exposed portion of the drill bit represents the depth to be drilled into the aircraft skin.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention enables efficient and accurate control of drill bit depth, effectively avoiding damage to the internal structure of the aircraft during drilling operations on the aircraft skin, improving the accuracy and reliability of drilling in the aircraft skin, and ensuring the quality of drilling in the aircraft skin. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model;

[0016] Figure 3 This is a top view of the present invention.

[0017] Wherein: 1 is the limiting cylinder, 2 is the locking bolt, 3 is the measuring cylinder, 4 is the scale line, and 5 is the limiting hole. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0019] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0020] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "equipped with," "sleeve-in / connected," "clamp-in," etc., should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] It should also be understood that the terms "comprising / including," "consisting of," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements includes not only those elements but may also include, where necessary, other elements not expressly listed, or elements inherent to such a product, apparatus, process, or method. Without further limitations, an element defined by the phrases "comprising / including," "consisting of," does not exclude the presence of additional identical elements in the product, apparatus, process, or method that includes said element. Example

[0022] like Figures 1 to 3As shown, this utility model provides a rapid depth-determining drilling and limiting device for aircraft skin, including a limiting cylinder 1, a locking bolt 2, and a measuring cylinder 3. The limiting cylinder 1 has a limiting hole 5 in the middle and a hole for the locking bolt 2 to pass through on the upper side. The measuring cylinder 3 is a T-shaped rotating body with a through hole in the middle. The limiting cylinder 1 is fitted onto the small-diameter rotating body of the measuring cylinder 3, and the limiting hole 5 is located in the through hole in the middle of the measuring cylinder 3. The length between the measuring cylinder 3 and the limiting cylinder 1 can be adjusted by rotating the measuring cylinder 3, thereby controlling the drilling depth of the drill bit. The outer wall of the small-diameter rotating body of the measuring cylinder 3 is provided with a scale line 4. The connection between the small-diameter rotating body and the large-diameter rotating body of the measuring cylinder 3 is the initial position of the scale line 4. The drill bit passes through the limiting hole 5 until the bottom plane of the measuring cylinder 3 is flush with the bottom of the drill bit, and is fixed by the locking bolt 2.

[0023] Preferably, a gap is left between the outer wall of the limiting hole 5 and the inner wall of the limiting cylinder 1 to accommodate the small-diameter rotating body of the measuring cylinder 3.

[0024] Preferably, the outer wall of the limiting hole 5 is provided with threads.

[0025] Preferably, the through hole in the middle of the measuring cylinder 3 is a threaded through hole, and the thread on the threaded through hole matches the thread on the outer wall of the limiting hole 5. The measuring cylinder 3 is connected to the thread on the outer wall of the limiting hole 5 through the threaded through hole.

[0026] Preferably, after the drill bit passes through the limiting hole 5 until the bottom plane of the measuring cylinder 3 is flush with the bottom of the drill bit, the limiting cylinder 1 is rotated to the initial position of the measuring cylinder 3, and the exposed part of the drill bit is the depth to be drilled into the aircraft skin.

[0027] Preferably, the scale line 4 includes a "0" scale line, and the initial position is the "0" scale line.

[0028] In this utility model, the device includes: a limiting cylinder 1, a locking bolt 2, a measuring cylinder 3, a scale line 4, and a limiting hole 5; the limiting cylinder 1 is connected to the locking bolt 2 and the measuring cylinder 3 by threads; the limiting cylinder 1 has a limiting hole 5 at its top; the locking bolt 2 is on the side of the limiting cylinder 1; the tightening degree of the locking bolt 2 is adjusted to accommodate the diameter of the drill bit; the scale line 4 is on the measuring cylinder 3; the scale value is changed by rotating the measuring cylinder 3 to control the drilling depth of the drill bit; the limiting hole 5 is at the center of the limiting cylinder 1; the drill bit is inserted into the limiting hole 5 and penetrates the entire limiting device.

[0029] The working principle of this utility model is as follows: Before using this utility model, the scale value of the measuring cylinder 3 needs to be adjusted to 0. After determining the drilling depth of the skin, the measuring cylinder 3 is rotated to make the scale value the same as the drilling depth value of the skin. After completing these steps, the drill bit is inserted into the limiting hole 5, penetrating the entire device, so that the bottom of the drill bit is flush with the bottom plane of the measuring cylinder 3. The locking bolt 2 is tightened to lock the drill bit, so that the drill bit and the device are tightly combined. Then, the scale value on the measuring cylinder 3 is zeroed by rotation. Finally, the drill bit is drilled into the aircraft skin until the measuring cylinder 3 is in contact with the skin. The drill bit is then pulled out, and the drilling is completed.

[0030] Using the above method, the drilling of aircraft skin can be completed quickly and at a fixed depth, effectively improving drilling efficiency.

[0031] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A rapid depth-determining drilling and limiting device for aircraft skin, characterized in that: The device includes a limiting cylinder, a locking bolt, and a measuring cylinder. The limiting cylinder has a limiting hole in the middle and a hole on the upper side for the locking bolt to pass through. The measuring cylinder is a T-shaped rotating body with a through hole in the middle. The limiting cylinder is fitted onto the smaller diameter rotating body of the measuring cylinder, and the limiting hole is located in the through hole in the middle of the measuring cylinder. The length between the measuring cylinder and the limiting cylinder can be adjusted by rotating the measuring cylinder, thereby controlling the drilling depth of the drill bit. The outer wall of the smaller diameter rotating body of the measuring cylinder has a scale line. The connection between the smaller diameter rotating body and the larger diameter rotating body of the measuring cylinder is the initial position of the scale line. The drill bit passes through the limiting hole until the bottom plane of the measuring cylinder is flush with the bottom of the drill bit, and is fixed by the locking bolt.

2. The aircraft skin rapid depth-determining drilling limiting device according to claim 1, characterized in that: A gap is left between the outer wall of the limiting hole and the inner wall of the limiting cylinder to accommodate a small-diameter rotating body of the measuring cylinder.

3. The aircraft skin rapid depth-determining drilling limiting device according to claim 1, characterized in that: The outer wall of the limiting hole is threaded.

4. The aircraft skin rapid depth-determining drilling limiting device according to claim 3, characterized in that: The through hole in the middle of the measuring cylinder is a threaded through hole. The thread on the threaded through hole matches the thread on the outer wall of the limiting hole. The measuring cylinder is connected to the outer wall of the limiting hole through the threaded through hole.

5. The aircraft skin rapid depth-determining drilling limiting device according to claim 1, characterized in that: After the drill bit passes through the limiting hole until the bottom plane of the measuring cylinder is flush with the bottom of the drill bit, rotate the limiting cylinder back to the initial position of the measuring cylinder. The exposed part of the drill bit is the depth to be drilled into the aircraft skin.

6. The aircraft skin rapid depth-determining drilling limiting device according to claim 1, characterized in that: The scale includes a "0" scale line, and the initial position is the "0" scale line.

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