Aircraft part drilling mechanism

Abstract

The utility model discloses an aircraft part drilling mechanism, which relates to the technical field of aircraft part processing, and comprises a bottom plate, a lifting groove arranged on the inner side of a vertical plate, a sliding groove arranged outside the lifting groove, a lifting mechanism arranged between the lifting groove and the sliding groove, and a mounting plate fixedly connected outside the lifting mechanism, a drilling mechanism is mounted outside the mounting plate, a fixing cylinder is fixedly connected to the bottom of the mounting plate, a groove is formed in the bottom of the fixing cylinder, a sliding sleeve is slidably connected into the groove, a spring is fixedly connected into the groove, a positioning mechanism is mounted between the sliding sleeve and the fixing cylinder, and a limiting mechanism is mounted at the bottom of the mounting plate. According to the device, drilling shielding is automatically formed through gravity downward sliding of the sliding sleeve, height self-adaptive adjustment is achieved by combining meshing of the spring and the toothed plate, the sliding sleeve is tightly attached along with lifting of the surface of a workpiece during drilling, protection is stably locked through manual unlocking and spring resetting, chippings are dynamically blocked from splashing, operation safety and environment cleanliness are both considered, and manual intervention is not needed.

Description

Technical Field

[0001] This utility model relates to the field of aircraft parts processing technology, and more specifically, to a drilling mechanism for aircraft parts. Background Technology

[0002] In the aerospace manufacturing field, drilling aircraft parts presents unique technical challenges. Traditional drilling equipment, lacking effective dynamic protection measures, allows metal chips and high-temperature sparks generated by the high-speed rotating drill bit to easily fly everywhere, endangering operator safety and contaminating the precision machining environment. Existing protective devices are mostly fixed designs, unable to automatically adjust their position with the drill bit feed, resulting in significantly reduced protective effectiveness. When machining irregular surfaces or requiring changes in drilling depth, operators must interrupt processing for manual adjustments, severely impacting production efficiency.

[0003] More notably, existing adjustable protective structures generally suffer from insufficient stability. When the equipment is running at high speed, vibration can easily cause the protective device to shift or even fall off, posing a safety hazard to the processing. Although the industry has tried to adopt improved solutions such as spring buffers, these solutions are often complex in structure and lack sufficient adjustment precision, making it difficult to meet the stringent requirements for precision and safety in the processing of aerospace parts. This limitation of traditional protective devices is particularly prominent when processing large aircraft structural components, which seriously restricts the improvement of aerospace manufacturing technology. Therefore, in response to the above technical problems, a drilling mechanism for aircraft parts is proposed here. Utility Model Content

[0004] The purpose of this utility model is to provide a drilling mechanism for aircraft parts. The sliding sleeve automatically forms a drilling shield by sliding down under gravity. Combined with the engagement of the spring and the toothed plate, the height is adaptively adjusted. During drilling, the sliding sleeve rises and falls with the workpiece surface and fits tightly. The protection is firmly locked by manual unlocking and spring reset, which dynamically blocks the splashing of debris. It takes into account both operational safety and environmental cleanliness, and requires no manual intervention.

[0005] This utility model is achieved through the following technical solution:

[0006] A drilling mechanism for aircraft parts includes a base plate, a clamping platform fixedly connected to the upper side of the base plate, a vertical plate fixedly connected to the upper side of the base plate, a lifting groove formed on the inner side of the vertical plate, a sliding groove formed on the outer side of the lifting groove, a lifting mechanism installed between the lifting groove and the sliding groove, a mounting plate fixedly connected to the outer side of the lifting mechanism, a drilling mechanism installed on the outer side of the mounting plate, a fixing cylinder fixedly connected to the bottom of the mounting plate, a groove formed at the bottom of the fixing cylinder, a sliding sleeve slidably connected within the groove, a spring fixedly connected within the groove, and the end of the spring fixedly connected to the upper side of the sliding sleeve, a positioning mechanism installed between the sliding sleeve and the fixing cylinder, and a limit mechanism installed at the bottom of the mounting plate.

[0007] Preferably, the part to be drilled is clamped on the inner side of the clamping table.

[0008] Preferably, the lifting mechanism includes a lead screw, a slider, and a connecting block. The lead screw is rotatably connected to the inner side of the lifting groove, the slider is limited and slidably connected to the inner side of the lifting groove, and the slider and the lead screw are connected by a thread. The connecting block is slidably connected to the outside of the slider and slidably connected to the inner side of the groove.

[0009] Preferably, a first motor is fixedly connected to the upper side of the upright plate, and the lead screw is fixedly connected to the first motor. The mounting plate is fixedly connected to the outside of the connecting block, and the mounting plate is slidably connected to the outside of the upright plate.

[0010] Preferably, the drilling mechanism includes a second motor and a drill rod. The second motor is fixedly connected to the upper side of the mounting plate, and the drill rod is fixedly connected to the bottom of the second motor. The drill rod is located inside the fixed cylinder and is located directly above the part to be drilled.

[0011] Preferably, both the fixed cylinder and the sliding sleeve are square cylindrical structures.

[0012] Preferably, the positioning mechanism includes a positioning hole, a positioning plate, and an insertion hole. The positioning hole is located on the outside of the sliding sleeve, the positioning plate is fixedly connected to the inside of the groove, and the insertion hole is located on the outside of the fixed cylinder and is connected to the groove. When the upper end of the sliding sleeve abuts against the positioning plate, a portion of the area between the insertion hole and the positioning hole overlaps.

[0013] Preferably, the limiting mechanism includes a first toothed plate, a sliding plate, a locking plate, and a second toothed plate. The first toothed plate is fixedly connected to the top inner side of the positioning hole. The sliding plate is slidably connected to the bottom of the mounting plate. The locking plate is fixedly connected to the lower side of the sliding plate, and the end of the locking plate matches the insertion hole. The second toothed plate is fixedly connected to the upper side of the end of the locking plate. When the end of the locking plate abuts against the innermost side of the groove, the tooth grooves on the outside of the first toothed plate and the second toothed plate are offset in the vertical direction.

[0014] The technical solution of this utility model has at least the following beneficial effects:

[0015] This invention proposes a drilling mechanism for aircraft parts. The sliding sleeve automatically slides down under gravity to form a ring-shaped shielding layer, blocking sparks and debris from splashing during drilling, significantly reducing operational risks and maintaining a clean working environment. The sliding sleeve maintains continuous contact with the workpiece surface, and combined with spring compression and energy storage, it achieves adaptive height adjustment. It rises and falls synchronously with the drill bit feed without manual intervention, avoiding interference between the protective structure and the drill rod movement. Furthermore, the unique toothed plate engagement and locking mechanism, through spring reset and double fixing with a locking plate, completely eliminates axial movement of the sliding sleeve under equipment vibration conditions, ensuring stable and reliable protection. Unlocking and reset can be completed with simple lifting and pushing actions, greatly simplifying the adjustment process of the protective device and improving processing efficiency. Its compact mechanical linkage design ensures high-precision drilling while also meeting the dynamic protection needs of complex curved workpieces. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of A in the middle;

[0018] Figure 3 This is a schematic diagram of the working structure of this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of B in the middle;

[0020] Figure 5 for Figure 3 Enlarged view of C;

[0021] Reference numerals: 1. Base plate; 2. Clamping platform; 3. Part to be drilled; 4. Vertical plate; 5. Lifting groove; 6. First motor; 7. Lead screw; 8. Slider; 9. Slide groove; 10. Connecting block; 11. Mounting plate; 12. Second motor; 13. Drill rod; 14. Fixing cylinder; 15. Sliding sleeve; 16. Spring; 17. Positioning hole; 18. First toothed plate; 19. Positioning plate; 20. Slide plate; 21. Clamping plate; 22. Second toothed plate; 23. Insertion hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 This utility model proposes a drilling mechanism for aircraft parts, including a base plate 1, a clamping platform 2 fixedly connected to the upper side of the base plate 1, a vertical plate 4 fixedly connected to the upper side of the base plate 1, a lifting groove 5 opened on the inner side of the vertical plate 4, a sliding groove 9 opened on the outer side of the lifting groove 5, a lifting mechanism installed between the lifting groove 5 and the sliding groove 9, a mounting plate 11 fixedly connected to the outer side of the lifting mechanism, a drilling mechanism installed on the outer side of the mounting plate 11, a fixing cylinder 14 fixedly connected to the bottom of the mounting plate 11, a groove opened at the bottom of the fixing cylinder 14, a sliding sleeve 15 slidably connected in the groove, a spring 16 fixedly connected in the groove, and the end of the spring 16 fixedly connected to the upper side of the sliding sleeve 15, a positioning mechanism installed between the sliding sleeve 15 and the fixing cylinder 14, and a limit mechanism installed at the bottom of the mounting plate 11.

[0024] The part 3 to be drilled is clamped on the inside of the clamping table 2.

[0025] The lifting mechanism includes a lead screw 7, a slider 8, and a connecting block 10. The lead screw 7 is rotatably connected to the inner side of the lifting groove 5. The slider 8 is limited and slidably connected to the inner side of the lifting groove 5, and the slider 8 and the lead screw 7 are connected by a thread. The connecting block 10 is slidably connected to the outside of the slider 8 and slidably connected to the inner side of the groove 9.

[0026] The upper side of the upright plate 4 is fixedly connected to the first motor 6, and the lead screw 7 is fixedly connected to the first motor 6. The mounting plate 11 is fixedly connected to the outside of the connecting block 10, and the mounting plate 11 is slidably connected to the outside of the upright plate 4.

[0027] The drilling mechanism includes a second motor 12 and a drill rod 13. The second motor 12 is fixedly connected to the upper side of the mounting plate 11, and the drill rod 13 is fixedly connected to the bottom of the second motor 12. The drill rod 13 is located inside the fixed cylinder 14 and is located directly above the part 3 to be drilled.

[0028] Both the fixed cylinder 14 and the sliding sleeve 15 are square cylindrical structures.

[0029] The positioning mechanism includes a positioning hole 17, a positioning plate 19, and an insertion hole 23. The positioning hole 17 is located on the outside of the sliding sleeve 15, the positioning plate 19 is fixedly connected to the inside of the groove, and the insertion hole 23 is located on the outside of the fixed cylinder 14. The insertion hole 23 is connected to the groove. When the upper end of the sliding sleeve 15 abuts against the positioning plate 19, a portion of the area between the insertion hole 23 and the positioning hole 17 overlaps.

[0030] The limiting mechanism includes a first toothed plate 18, a slide plate 20, a locking plate 21, and a second toothed plate 22. The first toothed plate 18 is fixedly connected to the top inner side of the positioning hole 17. The slide plate 20 is slidably connected to the bottom of the mounting plate 11. The locking plate 21 is fixedly connected to the lower side of the slide plate 20, and the end of the locking plate 21 matches the insertion hole 23. The second toothed plate 22 is fixedly connected to the upper side of the end of the locking plate 21. When the end of the locking plate 21 abuts against the innermost side of the groove, the toothed grooves on the outside of the first toothed plate 18 and the second toothed plate 22 are offset in the vertical direction.

[0031] The working principle of a drilling mechanism for aircraft parts based on an embodiment is as follows: Before processing the part 3 to be drilled, the operator needs to lift the sliding sleeve 15 upwards. At this time, the sliding sleeve 15 compresses the spring 16 and drives the first toothed plate 18 to disengage from the meshing state with the second toothed plate 22. Then, the sliding plate 20 is manually moved outwards, so that the end of the clamping plate 21 is completely pulled out from the insertion hole 23, releasing the fixation restriction on the sliding sleeve 15. At this time, the sliding sleeve 15 slides down the groove of the fixed cylinder 14 to the surface of the part 3 to be drilled under its own gravity, forming a ring shield on the drilling area of ​​the drill rod 13, effectively blocking the sparks and debris splashed during the processing, protecting the operator's safety and avoiding pollution of the working environment.

[0032] When the lifting mechanism is started, the first motor 6 drives the lead screw 7 to rotate, which in turn moves the slider 8 down along the lifting groove 5. This, in turn, pushes the mounting plate 11 down through the connecting block 10, causing the second motor 12 to drive the drill rod 13 to drill vertically. During this process, the bottom end of the sliding sleeve 15 continuously contacts the surface of the part 3 to be drilled, and slides upward along the groove as the drilling depth increases. The spring 16 is compressed and stores energy. This structure ensures that the sliding sleeve 15 always maintains close contact with the workpiece, and the height can be adjusted adaptively without manual intervention, which ensures both protection and avoids interference with the movement of the drill rod 13.

[0033] Furthermore, after drilling is completed, the operator moves the sliding sleeve 15 upwards until its top abuts against the positioning plate 19. At this point, the insertion hole 23 and the positioning hole 17 partially overlap, pushing the sliding plate 20 inwards. This causes the end of the locking plate 21 to re-insert into the insertion hole 23 and press against the inner wall of the groove. After releasing the sliding sleeve 15, the spring 16 releases its elastic force, pushing the sliding sleeve 15 slightly downwards. This causes the first toothed plate 18 and the second toothed plate 22 to precisely mesh, forming a bidirectional lock. This mechanism completely eliminates the axial wobbling of the sliding sleeve 15, preventing accidental dislodgement due to equipment vibration and ensuring the stability and reliability of the protective structure. Through mechanical linkage and elastic adaptive design, this mechanism takes into account drilling safety protection, dynamic adjustment, and stable locking functions, significantly improving operating efficiency and equipment safety.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drilling mechanism for aircraft parts, characterized in that: The system includes a base plate (1), a clamping platform (2) fixedly connected to the upper side of the base plate (1), a vertical plate (4) fixedly connected to the upper side of the base plate (1), a lifting groove (5) opened on the inner side of the vertical plate (4), a sliding groove (9) opened on the outer side of the lifting groove (5), a lifting mechanism installed between the lifting groove (5) and the sliding groove (9), an installation plate (11) fixedly connected to the outer side of the lifting mechanism, a drilling mechanism installed on the outer side of the installation plate (11), a fixing cylinder (14) fixedly connected to the bottom of the installation plate (11), a groove opened at the bottom of the fixing cylinder (14), a sliding sleeve (15) slidably connected in the groove, a spring (16) fixedly connected in the groove, and the end of the spring (16) fixedly connected to the upper side of the sliding sleeve (15), a positioning mechanism installed between the sliding sleeve (15) and the fixing cylinder (14), and a limit mechanism installed at the bottom of the installation plate (11).

2. The drilling mechanism for aircraft parts according to claim 1, characterized in that: The clamping table (2) has a part (3) to be drilled clamped on its inner side.

3. The drilling mechanism for aircraft parts according to claim 1, characterized in that: The lifting mechanism includes a lead screw (7), a slider (8), and a connecting block (10). The lead screw (7) is rotatably connected to the inner side of the lifting groove (5). The slider (8) is limited and slidably connected to the inner side of the lifting groove (5), and the slider (8) and the lead screw (7) are connected by a thread. The connecting block (10) is slidably connected to the outside of the slider (8) and slidably connected to the inner side of the slide groove (9).

4. The drilling mechanism for aircraft parts according to claim 3, characterized in that: The upper side of the upright plate (4) is fixedly connected to the first motor (6), and the lead screw (7) is fixedly connected to the first motor (6). The mounting plate (11) is fixedly connected to the outside of the connecting block (10), and the mounting plate (11) is slidably connected to the outside of the upright plate (4).

5. A drilling mechanism for aircraft parts according to claim 2, characterized in that: The drilling mechanism includes a second motor (12) and a drill rod (13). The second motor (12) is fixedly connected to the upper side of the mounting plate (11), and the drill rod (13) is fixedly connected to the bottom of the second motor (12). The drill rod (13) is located inside the fixed cylinder (14) and is located directly above the part (3) to be drilled.

6. The drilling mechanism for aircraft parts according to claim 1, characterized in that: Both the fixed cylinder (14) and the sliding sleeve (15) are square cylindrical structures.

7. The drilling mechanism for aircraft parts according to claim 1, characterized in that: The positioning mechanism includes a positioning hole (17), a positioning plate (19), and an insertion hole (23). The positioning hole (17) is located on the outside of the sliding sleeve (15). The positioning plate (19) is fixedly connected to the inside of the groove. The insertion hole (23) is located on the outside of the fixed cylinder (14) and is connected to the groove. When the upper end of the sliding sleeve (15) abuts against the positioning plate (19), a portion of the area between the insertion hole (23) and the positioning hole (17) overlaps.

8. A drilling mechanism for aircraft parts according to claim 7, characterized in that: The limiting mechanism includes a first toothed plate (18), a sliding plate (20), a locking plate (21), and a second toothed plate (22). The first toothed plate (18) is fixedly connected to the top inner side of the positioning hole (17). The sliding plate (20) is slidably connected to the bottom of the mounting plate (11). The locking plate (21) is fixedly connected to the lower side of the sliding plate (20), and the end of the locking plate (21) matches the insertion hole (23). The second toothed plate (22) is fixedly connected to the upper side of the end of the locking plate (21). When the end of the locking plate (21) abuts against the innermost side of the groove, the tooth grooves on the outside of the first toothed plate (18) and the second toothed plate (22) are staggered in the vertical direction.

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