Drilling device for machining aero-engine shell and machining method of drilling device

Abstract

The invention relates to the technical field of drilling machines or drilling devices, and discloses a drilling device for machining an aero-engine shell and a machining method thereof.The drilling device comprises a bearing mechanism and a drilling mechanism, the bearing mechanism comprises a box body, a protective shell fixedly installed at the top of the box body and a drilling assembly arranged in an inner cavity of the box body; the cleaning mechanism comprises a shell fixedly installed in an inner cavity of the protective shell. Dust diffusion is blocked through a fully-closed structure of the protective shell, a rotary nanofiber net of the electrostatic adsorption assembly continuously captures micron-sized metal particles, an airflow barrier of the micro cyclone dust removal assembly effectively separates cutting fluid fog drops, and the recovery assembly is matched with the directional airflow design of a dustproof ventilation opening; dust is fundamentally prevented from being deposited on key parts such as a guide rail and a drill bit, long-term cleaning of a machining datum plane can be kept, abrasion failure of moving parts is effectively prevented through an active dust removal mechanism, the reliability of equipment under the working condition of precision machining is remarkably improved, and the service life of the equipment under the working condition of precision machining is remarkably prolonged.

Description

Technical Field

[0001] This invention relates to the technical field of drilling machines or drilling devices, and more particularly to a drilling device and a method for machining aircraft engine casings. Background Technology

[0002] This drilling equipment is specifically designed for the high-precision drilling requirements of aero-engine casings and is used in the aerospace manufacturing field. It needs to be adaptable to difficult-to-machine materials such as titanium alloys and nickel-based superalloys. Its core function is to achieve multi-axis linkage positioning, deep hole machining, and hole diameter tolerance control (typically reaching IT7 level) on complex curved shell surfaces. At the same time, it integrates a cutting force monitoring and adaptive compensation system to address the process challenges of easily deformable thin-walled structures in aerospace components.

[0003] During the drilling process of aero-engine casings, fine metal dust and cutting fluid residue continuously accumulate inside the equipment, easily adhering to the surfaces of critical components such as guide rails, drill bits, and measurement reference surfaces. Even with regular cleaning, some residue remains difficult to completely remove. Over time, these fine contaminants can affect the measurement accuracy of the equipment, leading to deviations in the test data. More seriously, they may gradually erode the mating surfaces of moving parts, ultimately affecting the operational stability and service life of the equipment. Summary of the Invention

[0004] In view of the problems existing in the drilling equipment for machining aircraft engine casings, the present invention is proposed. Therefore, the purpose of this invention is to provide a drilling apparatus for machining the casing of an aircraft engine, the purpose of which is: To solve the above-mentioned technical problems, the present invention provides the following technical solution: including, The support mechanism includes a housing, a protective outer shell fixedly installed on the top of the housing, and a drilling assembly disposed in the inner cavity of the housing; The cleaning mechanism includes a housing fixedly installed inside the protective housing cavity, an electrostatic adsorption component disposed inside the housing cavity, a drive connection component disposed outside the housing, a micro cyclone dust removal component connected to one side of the drive connection component, and a recycling component disposed at the bottom of the housing for centralized dust processing.

[0005] As a preferred embodiment of the drilling device for processing the aero-engine casing according to the present invention, the electrostatic adsorption assembly includes a servo motor fixedly installed on the outside of the casing, a shaft fixedly installed on the output end of the servo motor, a positioning ring sleeve fixedly sleeved on the outside of the shaft, and electrostatic nanofiber mesh columns uniformly distributed in a ring on the outside of the positioning ring sleeve.

[0006] As a preferred embodiment of the drilling device for processing the casing of the aero-engine described in this invention, the drive connection assembly includes a first limiting sleeve fixedly installed at the end of the shaft, a transmission belt movably sleeved on the outside of the first limiting sleeve, and a bracket fixedly installed on the outside of the recovery assembly.

[0007] As a preferred embodiment of the drilling device for processing the casing of the aero-engine described in this invention, the drive connection assembly further includes a connecting rod fixedly installed on the outside of the bracket, and a second limiting sleeve fixedly installed on the outside of the connecting rod, wherein the other end of the transmission belt is movably sleeved on the outside of the second limiting sleeve.

[0008] As a preferred embodiment of the drilling device for processing the aircraft engine casing according to the present invention, the drilling assembly includes a support frame fixedly installed on the inner wall of the protective casing, a drive motor fixedly installed on one side of the support frame, and a drill bit fixedly installed on the outside of the drive motor.

[0009] As a preferred embodiment of the drilling device for processing the casing of the aero-engine described in this invention, the micro cyclone dust removal assembly includes a tube body fixedly installed outside the second limiting sleeve, a sleeve movably sleeved outside the tube body, air blowing holes arranged in a ring on the outside of the sleeve, a limiting card movably locked outside the tube body, and an air pipe connector fixedly installed at the end of the tube body.

[0010] As a preferred embodiment of the drilling device for processing the aero-engine casing according to the present invention, the recovery assembly includes a box body fixedly installed on and communicating with the casing, a recovery box movably locked in the inner cavity of the box body, a filter screen fixedly installed on the outside of the recovery box body, and a suction fan fixedly installed in the inner cavity of the box body.

[0011] As a preferred embodiment of the drilling device for processing the aircraft engine casing according to the present invention, the cleaning mechanism further includes an intake groove opened on the outside of the casing and a dustproof ventilation port opened on the outside of the box.

[0012] As a preferred embodiment of the drilling device for processing the aircraft engine casing according to the present invention, the supporting mechanism further includes channels opened on both sides of the protective casing, and a conveyor belt fixedly installed in the inner cavity of the protective casing and passing through the channels.

[0013] The present invention also provides a method of use.

[0014] This invention provides the following technical solution: a method of use, including the aforementioned drilling device for machining aircraft engine casings, the method comprising the following steps: S1: The aircraft engine casing to be processed is conveyed to the protective casing via a conveyor belt and positioned and fixed by the housing of the carrying mechanism to ensure that the workpiece and the drill bit are precisely aligned.

[0015] S2: Start the drive motor to drive the drill bit to drill the workpiece; simultaneously start the servo motor to drive the shaft to rotate the electrostatic nanofiber mesh column, generating an electrostatic adsorption effect.

[0016] S3: During the processing, the micro cyclone dust removal component separates large particles of debris by spraying high-pressure airflow through the air blowing hole, the electrostatic adsorption component captures fine dust, and the dust is concentrated and drawn into the recycling box by the suction fan, and then collected after being filtered through the filter screen.

[0017] S4: After processing is completed, turn off the drive motor and servo motor, remove the recycling box to clean the accumulated dust, and the conveyor belt will send the finished workpiece out of the protective shell to complete the processing cycle.

[0018] The beneficial effects of this invention are as follows: the fully enclosed structure of the protective shell blocks dust diffusion; the rotating nanofiber mesh of the electrostatic adsorption component continuously captures micron-sized metal particles; the airflow barrier of the micro cyclone dust removal component effectively separates cutting fluid droplets; and the recovery component, combined with the directional airflow design of the dustproof ventilation port, fundamentally eliminates dust deposition in key parts such as guide rails and drill bits. This not only maintains the long-term cleanliness of the machining reference surface but also effectively prevents wear and failure of moving parts through the active dust removal mechanism, significantly improving the reliability and service life of the equipment under precision machining conditions. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a partial cross-sectional view of the overall structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the cleaning mechanism structure of the present invention.

[0022] Figure 4 This is a partial cross-sectional view of the cleaning mechanism structure of the present invention.

[0023] Figure 5 This is a partial schematic diagram of the structure of the recycling component of the present invention.

[0024] In the picture: 100. Load-bearing mechanism; 110. Housing; 120. Protective shell; 130. Drilling assembly; 131. Support frame; 132. Drive motor; 133. Drill bit; 140. Channel; 150. Conveyor belt; 200. Cleaning mechanism; 210. Housing; 220. Electrostatic adsorption component; 221. Servo motor; 222. Shaft; 223. Positioning ring sleeve; 224. Electrostatic nanofiber mesh column; 230. Drive connection component; 231. First limiting sleeve; 232. Transmission belt; 233. Bracket; 234. Connecting rod; 235. Second limiting sleeve; 240. Micro cyclone dust removal component; 241. Tube body; 242. Tube sleeve; 243. Air blowing hole; 244. Limiting card; 245. Air pipe connector; 250. Recycling component; 251. Box body; 252. Recycling box; 253. Filter screen; 254. Fan; 260. Suction slot; 270. Dustproof ventilation port. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0029] Example 1 Reference Figures 1-5 This is the first embodiment of the present invention, which provides a drilling apparatus for machining the outer casing of an aircraft engine. This apparatus includes... The support mechanism 100 includes a housing 110, a protective shell 120 fixedly installed on the top of the housing 110, and a drilling assembly 130 disposed in the inner cavity of the housing 110. The cleaning mechanism 200 includes a housing 210 fixedly installed inside the protective housing 120, an electrostatic adsorption component 220 disposed inside the housing 210, a drive connection component 230 disposed outside the housing 210, a micro cyclone dust removal component 240 connected to one side of the drive connection component 230, and a recycling component 250 disposed at the bottom of the housing 210 for centralized dust processing.

[0030] The coordinated operation of the bearing mechanism 100 and the cleaning mechanism 200 effectively solves the dust pollution problem during the drilling process of the aircraft engine casing. The housing 110 and the protective shell 120 form a closed processing environment, which can prevent the splashing of processing debris. At the same time, the cleaning mechanism 200 integrates electrostatic adsorption, cyclone separation and centralized recycling functions, which can classify and process dust of different particle sizes, significantly improving the cleanliness of the processing environment and avoiding the impact of dust on processing accuracy and equipment life.

[0031] Specifically, the electrostatic adsorption component 220 includes a servo motor 221 fixedly installed on the outside of the housing 210, a shaft 222 fixedly installed on the output end of the servo motor 221, a positioning ring 223 fixedly sleeved on the outside of the shaft 222, and electrostatic nanofiber mesh columns 224 evenly distributed in a ring on the outside of the positioning ring 223.

[0032] Among them, the electrostatic adsorption component 220 adopts a rotary design driven by a servo motor 221. The shaft 222 drives the electrostatic nanofiber mesh column 224 on the positioning ring sleeve 223 to rotate continuously, which greatly increases the effective contact area for dust adsorption. This structure not only improves the electrostatic adsorption efficiency, but also avoids the problem of easy clogging of traditional fixed adsorption devices through rotational motion, ensuring long-term stable operation. It is suitable for treating micron-level metal dust generated in drilling.

[0033] Furthermore, the drive connection assembly 230 includes a first limiting sleeve 231 fixedly installed at the end of the shaft 222, a transmission belt 232 movably sleeved on the outside of the first limiting sleeve 231, and a bracket 233 fixedly installed on the outside of the recycling assembly 250. The drive connection assembly 230 also includes a connecting rod 234 fixedly installed on the outside of the bracket 233, and a second limiting sleeve 235 fixedly installed on the outside of the connecting rod 234. The other end of the transmission belt 232 is movably sleeved on the outside of the second limiting sleeve 235.

[0034] The drive connection component 230, through the cooperation of the first limiting sleeve 231 and the transmission belt 232, realizes the effective transmission of power from the electrostatic adsorption component 220 to other cleaning components. The reasonable arrangement of the bracket 233 not only ensures the transmission stability but also provides reliable support for the entire cleaning system, facilitating independent maintenance of each component and greatly reducing equipment maintenance costs. The added connecting rod 234 and the second limiting sleeve 235 further optimize the power transmission path, making the operation of the transmission belt 232 more stable and reliable. This double limiting structure effectively prevents the transmission belt 232 from running off-center or slipping, ensuring that all functional components of the cleaning system can operate in a coordinated manner.

[0035] Preferably, the drilling assembly 130 includes a support frame 131 fixedly mounted on the inner wall of the protective housing 120, a drive motor 132 fixedly mounted on one side of the support frame 131, and a drill bit 133 fixedly mounted on the outside of the drive motor 132.

[0036] The drilling assembly 130 adopts a combination design of fixing the drive motor 132 and the drill bit 133 with the support frame 131. The structure is simple and reliable. The rigid support of the support frame 131 effectively suppresses the vibration during the drilling process and ensures the processing accuracy. The direct connection design between the drive motor 132 and the drill bit 133 reduces power loss and improves processing efficiency.

[0037] Furthermore, the micro cyclone dust removal assembly 240 includes a tube body 241 fixedly installed outside the second limiting sleeve 235, a tube sleeve 242 movably sleeved outside the tube body 241, air blowing holes 243 arranged in a ring on the outside of the tube sleeve 242, a limiting card 244 movably locked outside the tube body 241, and an air pipe connector 245 fixedly installed at the end of the tube body 241.

[0038] Among them, the micro cyclone dust removal component 240 achieves precise injection of compressed air through the cooperation of the tube body 241 and the tube sleeve 242. The annularly arranged air blowing holes 243 form a uniform airflow barrier, effectively separating large particles of debris. The limiting card 244 ensures the stability of the tube body 241 installation. The air pipe connector 245 facilitates the access of external air sources. This component works in conjunction with the electrostatic adsorption component 220 to form a multi-stage dust removal system.

[0039] Furthermore, the cleaning mechanism 200 also includes a suction groove 260 opened on the outside of the housing 210, and a dustproof vent 270 opened on the outside of the box 251. The carrying mechanism 100 also includes channels 140 opened on both sides of the protective housing 120, and a conveyor belt 150 fixedly installed in the inner cavity of the protective housing 120 and passing through the channels 140.

[0040] Among them, the opening of the suction tank 260 optimizes the dust collection path and improves the working efficiency of the cleaning mechanism 200. The reasonable design of the dustproof ventilation port 270 not only ensures the balance of air pressure inside and outside the system, but also prevents secondary dust. These two detailed designs significantly improve the overall performance of the entire cleaning system, making dust treatment more thorough. The setting of the channel 140 and the conveyor belt 150 realizes the automated transportation of workpieces, which greatly improves production efficiency. The design of the conveyor belt 150 passing through the protective shell 120 not only ensures the enclosure of the processing area, but also facilitates the flow of workpieces.

[0041] In operation, the aircraft engine casing to be processed is first fed into the enclosed processing area inside the protective casing 120 via the conveyor belt 150 and channel 140. After startup, the drive motor 132 of the drilling assembly 130 drives the drill bit 133 to perform precise drilling. At the same time, the servo motor 221 drives the electrostatic nanofiber mesh column 224 to rotate and adsorb the generated micron-sized metal dust. The micro cyclone dust removal assembly 240 forms an airflow barrier through the air blowing hole 243 to separate large particles of debris. The suction tank 260 introduces the dust-laden airflow into the casing 210. The suction fan 254 of the recovery assembly 250 generates negative pressure, causing the dust to be filtered through the filter mesh 253 and deposited in the recovery box 252. The purified air is discharged through the dustproof ventilation port 270, completing the entire closed-loop operation of drilling and dust removal.

[0042] In summary, through the collaborative design of the bearing mechanism 100 and the cleaning mechanism 200, efficient drilling and dust treatment are achieved simultaneously. The protective shell 120 and the box 110 form a closed processing space. Combined with the rotary electrostatic adsorption component 220 and the micro cyclone dust removal component 240, micron-sized metal dust can be captured. The modular drive connection component 230 ensures stable power transmission through a double limiting structure. With the help of the self-cleaning recycling component 250, the continuous working time of the equipment is effectively increased. The optimized suction groove 260 and the dustproof ventilation port 270 form a directional airflow circulation. The overall structure significantly improves the cleanliness of the processing environment while ensuring drilling accuracy, thus solving the dust pollution problem of traditional drilling equipment.

[0043] Example 2 Reference Figure 1 , Figure 4 and Figure 5 This is the second embodiment of the present invention, which differs from the first embodiment in that it provides an optimized structure for the recycling component 250 and its synergistic dust removal effect.

[0044] Furthermore, the recycling assembly 250 includes a box 251 fixedly installed in and communicating with the housing 210, a recycling box 252 movably locked in the inner cavity of the box 251, a filter screen 253 fixedly installed on the outside of the recycling box 252, and a suction fan 254 fixedly installed in the inner cavity of the box 251.

[0045] The recycling component 250 features a separable design between the box 251 and the recycling box 252, facilitating centralized dust processing and regular cleaning. The filter screen 253 achieves gas-solid separation, and the suction fan 254 provides stable negative pressure suction to ensure dust recycling efficiency. This design not only guarantees sealing but also facilitates daily maintenance by operators, greatly improving the system's practicality.

[0046] During operation, the suction fan 254 generates negative pressure to draw dust-laden airflow into the housing 251. The airflow first undergoes preliminary filtration through the filter screen 253, intercepting large dust particles which fall to the bottom of the collection box 252. Subsequently, the airflow is pressurized by the suction fan 254 and re-enters the cyclone dust removal cycle. The collection box 252 adopts a movable locking structure, facilitating periodic cleaning of accumulated dust without affecting the system's sealing performance. The entire recycling process achieves gradient separation and cyclic processing of dust.

[0047] In summary, through the coordinated operation of the filter screen 253 inside the housing 251 and the suction fan 254, efficient dust collection and gas-solid separation are achieved. The movable snap-fit ​​recycling box 252 facilitates regular cleaning and maintains the system's airtightness. This design not only improves dust handling efficiency but also simplifies the maintenance process.

[0048] Example 3 Reference Figures 1-5 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a method of use, including a drilling apparatus for machining an aircraft engine casing, the method comprising the following steps: S1: The aircraft engine casing to be processed is conveyed to the protective casing 120 via the conveyor belt 150 and positioned and fixed by the box 110 of the bearing mechanism 100 to ensure that the workpiece and the drill bit 133 are precisely aligned.

[0049] S2: Start the drive motor 132 to drive the drill bit 133 to drill the workpiece; simultaneously start the servo motor 221 to drive the shaft 222 to rotate the electrostatic nanofiber mesh column 224, generating an electrostatic adsorption effect.

[0050] S3: During the processing, the micro cyclone dust removal component 240 sprays high-pressure airflow through the air blowing hole 243 to separate large particles of debris, the electrostatic adsorption component 220 captures fine dust, and the dust is concentrated and drawn into the recycling box 252 by the suction fan 254, and then collected after being filtered by the filter screen 253.

[0051] S4: After processing is completed, turn off the drive motor 132 and servo motor 221, take out the recycling box 252 to clean the accumulated dust, and the conveyor belt 150 sends the finished workpiece out of the protective shell 120 to complete the processing cycle.

[0052] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0053] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A drilling apparatus for machining the casing of an aircraft engine, characterized in that: include, The support mechanism (100) includes a housing (110), a protective shell (120) fixedly installed on the top of the housing (110), and a drilling assembly (130) disposed in the inner cavity of the housing (110). The cleaning mechanism (200) includes a housing (210) fixedly installed in the inner cavity of the protective housing (120), an electrostatic adsorption assembly (220) disposed in the inner cavity of the housing (210), a drive connection assembly (230) disposed on the outside of the housing (210), a micro cyclone dust removal assembly (240) connected to one side of the drive connection assembly (230), and a recycling assembly (250) disposed at the bottom of the housing (210) for centralized dust processing.

2. The drilling apparatus for machining aircraft engine casing according to claim 1, characterized in that: The electrostatic adsorption assembly (220) includes a servo motor (221) fixedly installed on the outside of the housing (210), a shaft (222) fixedly installed on the output end of the servo motor (221), a positioning ring (223) fixedly sleeved on the outside of the shaft (222), and electrostatic nanofiber mesh columns (224) evenly distributed in a ring on the outside of the positioning ring (223).

3. The drilling apparatus for machining aircraft engine casing according to claim 2, characterized in that: The drive connection assembly (230) includes a first limiting sleeve (231) fixedly installed at the end of the shaft (222), a transmission belt (232) movably sleeved on the outside of the first limiting sleeve (231), and a bracket (233) fixedly installed on the outside of the recycling assembly (250).

4. The drilling apparatus for machining aircraft engine casing according to claim 3, characterized in that: The drive connection assembly (230) further includes a connecting rod (234) fixedly installed on the outside of the bracket (233), and a second limiting sleeve (235) fixedly installed on the outside of the connecting rod (234), with the other end of the transmission belt (232) movably sleeved on the outside of the second limiting sleeve (235).

5. The drilling apparatus for machining aircraft engine casing according to claim 4, characterized in that: The drilling assembly (130) includes a support frame (131) fixedly installed on the inner wall of the protective housing (120), a drive motor (132) fixedly installed on one side of the support frame (131), and a drill bit (133) fixedly installed on the outside of the drive motor (132).

6. The drilling apparatus for machining aircraft engine casing according to claim 5, characterized in that: The micro cyclone dust removal assembly (240) includes a tube body (241) fixedly installed on the outside of the second limiting sleeve (235), a sleeve (242) movably sleeved on the outside of the tube body (241), air holes (243) arranged in a ring on the outside of the sleeve (242), a limiting card (244) movably locked on the outside of the tube body (241), and an air pipe connector (245) fixedly installed at the end of the tube body (241).

7. The drilling apparatus for machining aircraft engine casing according to claim 6, characterized in that: The recycling assembly (250) includes a box (251) fixedly installed in and communicating with the housing (210), a recycling box (252) movably locked in the inner cavity of the box (251), a filter screen (253) fixedly installed on the outside of the recycling box (252), and a suction fan (254) fixedly installed in the inner cavity of the box (251).

8. The drilling apparatus for machining aircraft engine casing according to claim 7, characterized in that: The cleaning mechanism (200) also includes a suction groove (260) opened on the outside of the housing (210) and a dustproof vent (270) opened on the outside of the box (251).

9. The drilling apparatus for machining aircraft engine casing according to claim 8, characterized in that: The support mechanism (100) also includes channels (140) opened on both sides of the protective housing (120) and a conveyor belt (150) fixedly installed in the inner cavity of the protective housing (120) and passing through the channels (140).

10. A method of use, characterized in that: The drilling apparatus for machining the casing of an aircraft engine, as described in any one of claims 1 to 9, comprises the following steps: S1: The aircraft engine casing to be processed is conveyed to the protective casing (120) via the conveyor belt (150) and positioned and fixed by the box (110) of the bearing mechanism (100) to ensure that the workpiece and the drill bit (133) are precisely aligned; S2: Start the drive motor (132) to drive the drill bit (133) to drill the workpiece; simultaneously start the servo motor (221) to drive the shaft (222) to rotate the electrostatic nanofiber mesh column (224) and generate an electrostatic adsorption effect; S3: During the processing, the micro cyclone dust removal component (240) sprays high-pressure airflow through the air blowing hole (243) to separate large particles of debris, the electrostatic adsorption component (220) captures fine dust, and the dust is concentrated and drawn into the recycling box (252) by the suction fan (254), and collected after being filtered by the filter screen (253); S4: After processing is completed, turn off the drive motor (132) and servo motor (221), take out the recycling box (252) to clean the dust, and the conveyor belt (150) sends the finished workpiece out of the protective shell (120) to complete the processing cycle.

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