Numerical control boring device for aerospace composite material

Abstract

The numerical control boring device comprises a base and a back frame, the back frame is fixedly installed on the top face of the base, an electric cylinder is fixedly installed on the top face of the back frame, a motor box is fixedly installed on the bottom face of a moving rod of the electric cylinder, and a driving motor is fixedly installed in the motor box. A drill bit is mounted at the output end of the driving motor. The drilling device has the advantages that the sleeve and the polishing pad are adopted, the sleeve is connected to the outer side of the drill bit in a sleeving mode and is fixed by tightening the locking screw, and when aerospace composite material boring is carried out, the aerospace composite material can be placed on the top face of the base, located below the drill bit and aligned to the position, and then the electric cylinder and the driving motor can be started; the driving motor drives the drill bit to rotate, the electric cylinder pushes the motor box to move downwards, the drill bit is driven to move downwards for boring, after boring is completed, the drill bit moves downwards continuously, the polishing pad makes contact with the punching position for polishing, the problem of boring burrs is avoided, the boring quality is improved, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of aerospace material processing technology, specifically to a CNC boring device for aerospace composite materials. Background Technology

[0002] Aerospace composite materials are used in various components of aircraft. Among them, aviation hydraulic oil tanks are made of composite materials, which can not only provide a high-pressure environment, but also play a role in explosion protection. Boring devices are used when boring aviation hydraulic oil tanks.

[0003] Traditional boring devices consist of a drive motor, a drill bit, and a feed mechanism. The drive motor rotates the drill bit, which moves through the feed mechanism to perform boring. During boring, debris and dust are generated, which are difficult to collect and clean in a timely manner, leading to a messy work environment and hindering clean production. In addition, when the drill bit is withdrawn, some burrs are generated on the surface of aerospace composite materials, affecting the required machining accuracy. Post-processing grinding and polishing are also quite troublesome. Further improvements can be made. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a CNC boring device for aerospace composite materials, which has the advantages of improved work efficiency and facilitates clean production, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned advantages of improved work efficiency and facilitated clean production, the specific technical solution adopted by this utility model is as follows: A CNC boring device for aerospace composite materials includes a base and a back frame. The back frame is fixedly installed on the top surface of the base, and an electric cylinder is fixedly installed on the top surface of the back frame. A motor housing is fixedly installed on the bottom surface of the moving rod of the electric cylinder. A drive motor is fixedly installed inside the motor housing, and a drill bit is installed at the output end of the drive motor. A collar is sleeved on the outside of the drill bit. The collar is fixedly connected to the drill bit by a locking screw. An mounting plate is fixedly installed on the bottom surface of the collar, and a grinding pad is fixedly installed on the bottom surface of the mounting plate. An outer cylinder is fixedly connected to the bottom surface of the motor housing outside the bottom ring. An annular groove is opened on the bottom surface of the outer cylinder, and a bottom ring is slidably inserted into the annular groove. A spring is connected between the top surface of the bottom ring and the top surface inside the annular groove. A dust suction hose is connected through the surface of the bottom ring.

[0008] Furthermore, the other end of the vacuum hose is connected to a vacuum cleaner, and the length of the vacuum hose is not less than 20cm.

[0009] Furthermore, the two ends of the spring are fixedly connected to the top surface of the bottom ring and the top surface of the inner ring groove, respectively, and multiple sets of springs are distributed at equal angles along the central axis of the outer cylinder.

[0010] Furthermore, the drill bit, outer cylinder, bottom ring, ring groove, collar, mounting plate and drive motor are arranged coaxially, and an air inlet is provided on the bottom surface of the bottom ring.

[0011] Furthermore, multiple sets of locking screws are arranged, and the locking screws are threadedly connected to the collar, with one end of the locking screw pressed against the surface of the drill bit.

[0012] Furthermore, the inner wall of the back frame is provided with a guide groove, and the back surface of the motor box is provided with a guide block, which is inserted into the guide groove and slidably connected to the guide groove.

[0013] Furthermore, a bottom hole is formed through the surface of the base, and the bottom hole is located directly below the drill bit.

[0014] Furthermore, the motor housing has heat dissipation holes on its front facade, and these holes are densely distributed.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a CNC boring device for aerospace composite materials, which has the following advantages:

[0017] (1) This utility model adopts a sleeve and a grinding pad. The sleeve is fitted onto the outside of the drill bit and fixed by tightening the locking screw. When boring aerospace composite materials, the aerospace composite material can be placed on the top surface of the base, located below the drill bit. After aligning the position, the electric cylinder and drive motor can be started. The drive motor drives the drill bit to rotate, and the electric cylinder pushes the motor box to move down, which drives the drill bit to move down to perform boring. After boring is completed, the drill bit continues to move down, and the grinding pad contacts the drilling position to perform grinding, which avoids the problem of boring burrs, improves the boring quality, and improves work efficiency.

[0018] (2) This utility model is equipped with an outer cylinder, a bottom ring and a dust suction hose. When boring, the bottom ring and the outer cylinder move down synchronously. The bottom ring first contacts the surface of the aerospace composite material. As the motor box moves down continuously, the spring is compressed, which does not affect the continuous downward movement of the drill bit. The outer cylinder and the bottom ring play a protective role to prevent debris and dust from splashing and escaping. At the same time, the dust suction hose is connected to the vacuum cleaner to suck the dust and debris generated by drilling into the dust suction hose and into the vacuum cleaner to complete the dust removal, which facilitates clean production and improves the convenience of use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a CNC boring device for aerospace composite materials according to an embodiment of the present utility model;

[0021] Figure 2 This is a front view of a CNC boring device for aerospace composite materials according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the installation of the polishing pad according to an embodiment of the present utility model;

[0023] Figure 4 This is a structural schematic diagram of the motor housing according to an embodiment of the present utility model.

[0024] In the picture:

[0025] 1. Base; 2. Back frame; 3. Electric cylinder; 4. Guide groove; 5. Motor box; 6. Drive motor; 7. Vacuum hose; 8. Outer cylinder; 9. Drill bit; 10. Bottom ring; 11. Spring; 12. Air inlet; 13. Bottom hole; 14. Collar; 15. Mounting plate; 16. Grinding pad; 17. Locking screw; 18. Heat dissipation hole; 19. Guide block; 20. Ring groove. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0027] According to an embodiment of the present invention, a CNC boring device for aerospace composite materials is provided.

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, a CNC boring device for aerospace composite materials according to an embodiment of the present invention includes a base 1 and a back frame 2. The back frame 2 is fixedly installed on the top surface of the base 1. The back frame 2 has an L-shaped structure, and an electric cylinder 3 is fixedly installed on the top surface of the back frame 2. A motor housing 5 is fixedly installed on the bottom surface of the moving rod of the electric cylinder 3. A drive motor 6 is fixedly installed inside the motor housing 5, and a drill bit 9 is installed at the output end of the drive motor 6. A collar 14 is sleeved on the outside of the drill bit 9. The collar 14 is fixedly connected to the drill bit 9 by a locking screw 17, and the bottom surface of the collar 14 is fixed. A mounting plate 15 is installed, and a polishing pad 16 is fixedly installed on the bottom surface of the mounting plate 15. The polishing pad 16 can be a polishing pad, which is a common material. The bottom surface of the motor housing 5 is fixedly connected to the outer cylinder 8 outside the bottom ring 10, and the bottom surface of the outer cylinder 8 has an annular groove 20. The bottom ring 10 is slidably inserted into the annular groove 20. A spring 11 is connected between the top surface of the bottom ring 10 and the inner top surface of the annular groove 20. A vacuum suction hose 7 is connected through the surface of the bottom ring 10. The other end of the vacuum suction hose 7 is connected to the vacuum cleaner, and the length of the vacuum suction hose 7 is not less than 20cm, so as not to affect the vacuum cleaner. The motor housing 5 moves up and down, and the sleeve is fitted onto the outside of the drill bit 9 and fixed by tightening the locking screw 17. When boring aerospace composite materials, the aerospace composite material can be placed on the top surface of the base 1, below the drill bit 9. After alignment, the electric cylinder 3 and drive motor 6 can be started. The drive motor 6 drives the drill bit 9 to rotate, and the electric cylinder 3 pushes the motor housing 5 down, driving the drill bit 9 down to perform boring. After boring, the drill bit 9 continues to move down, and the grinding pad 16 contacts the drilling position for grinding, avoiding the problem of boring burrs and improving the quality. The improved boring quality enhances work efficiency. During boring, the bottom ring 10 and outer cylinder 8 move downwards synchronously. The bottom ring 10 first contacts the aerospace composite material surface. As the motor housing 5 continues to move downwards, the spring 11 compresses, without affecting the continuous downward movement of the drill bit 9. The outer cylinder 8 and bottom ring 10 provide protection, preventing debris and dust from splashing and escaping. Simultaneously, the suction hose 7 connects to the vacuum cleaner, drawing in the dust and debris generated during drilling. This allows for dust removal, facilitating cleaner production and improving ease of use.

[0029] In one embodiment, the two ends of the spring 11 are fixedly connected to the top surface of the bottom ring 10 and the inner top surface of the ring groove 20, respectively, and multiple sets of springs 11 are distributed at equal angles along the central axis of the outer cylinder 8 to improve the stability of the connection and prevent the bottom ring 10 from separating from the outer cylinder 8.

[0030] In one embodiment, the drill bit 9, outer cylinder 8, bottom ring 10, ring groove 20, collar 14, mounting plate 15 and drive motor 6 are arranged coaxially to improve the stability of boring and grinding. The bottom surface of the bottom ring 10 is provided with an air inlet 12 to facilitate airflow, thereby making it easier for the airflow to carry debris and dust into the vacuum hose 7.

[0031] In one embodiment, multiple sets of locking screws 17 are arranged, and the locking screws 17 are threadedly connected to the collar 14. One end of the locking screw 17 is pressed against the surface of the drill bit 9, which is a common fixing structure. The operator can adjust the position of the bottom ring 10 and the grinding pad 16 according to the hole depth.

[0032] In one embodiment, the inner wall of the back frame 2 is provided with a guide groove 4, and the back surface of the motor housing 5 is provided with a guide block 19. The guide block 19 is inserted into the guide groove 4 and slidably connected with the guide groove 4 to guide the lifting of the motor housing 5 and improve the stability of the lifting of the motor housing 5.

[0033] In one embodiment, a bottom hole 13 is provided through the surface of the base 1, and the bottom hole 13 is located directly below the drill bit 9, so that the drill bit 9 can penetrate the aerospace composite material for boring.

[0034] In one embodiment, the motor housing 5 has heat dissipation holes 18 on its front facade, and the heat dissipation holes 18 are densely distributed to facilitate heat dissipation of the drive motor 6.

[0035] Working principle: When boring aerospace composite materials, the aerospace composite material can be placed on the top surface of the base 1, below the drill bit 9. After alignment, the electric cylinder 3 and drive motor 6 can be started. The drive motor 6 drives the drill bit 9 to rotate, and the electric cylinder 3 pushes the motor housing 5 downward, moving the drill bit 9 downward to perform boring. After boring, the drill bit 9 continues to move downward, and the grinding pad 16 contacts the drilling position for grinding, avoiding the problem of boring burrs, improving boring quality, and increasing work efficiency. During boring, the bottom ring 10 and the outer cylinder 8 move down synchronously. The bottom ring 10 first contacts the surface of the aerospace composite material. As the motor housing 5 moves down, the spring 11 is compressed, which does not affect the continuous downward movement of the drill bit 9. The outer cylinder 8 and the bottom ring 10 play a protective role, preventing debris and dust from splashing and escaping. At the same time, the dust suction hose 7 is connected to the vacuum cleaner, sucking the dust and debris generated during drilling into the dust suction hose 7 and into the vacuum cleaner to complete the dust removal, which facilitates clean production and improves the convenience of use.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A CNC boring device for aerospace composite materials, comprising a base (1) and a back frame (2), characterized in that, A back frame (2) is fixedly installed on the top surface of the base (1), and an electric cylinder (3) is fixedly installed on the top surface of the back frame (2). A motor box (5) is fixedly installed on the bottom surface of the moving rod of the electric cylinder (3). A drive motor (6) is fixedly installed inside the motor box (5), and a drill bit (9) is installed at the output end of the drive motor (6). A collar (14) is sleeved on the outside of the drill bit (9). The collar (14) is fixedly connected to the drill bit (9) by a locking screw (17), and the bottom surface of the collar (14) is... A mounting plate (15) is fixedly installed, and a grinding pad (16) is fixedly installed on the bottom surface of the mounting plate (15). The bottom surface of the motor box (5) is located outside the bottom ring (10) and is fixedly connected to an outer cylinder (8). An annular groove (20) is opened on the bottom surface of the outer cylinder (8), and a bottom ring (10) is slidably inserted into the annular groove (20). A spring (11) is connected between the top surface of the bottom ring (10) and the top surface inside the annular groove (20). A vacuum hose (7) is connected through the surface of the bottom ring (10).

2. The CNC boring device for aerospace composite materials according to claim 1, characterized in that, The other end of the vacuum hose (7) is connected to the vacuum cleaner, and the length of the vacuum hose (7) is not less than 20cm.

3. The CNC boring device for aerospace composite materials according to claim 1, characterized in that, The two ends of the spring (11) are fixedly connected to the top surface of the bottom ring (10) and the inner top surface of the ring groove (20), and multiple sets of springs (11) are distributed at equal angles along the central axis of the outer cylinder (8).

4. The CNC boring device for aerospace composite materials according to claim 1, characterized in that, The drill bit (9), outer cylinder (8), bottom ring (10), ring groove (20), collar (14), mounting plate (15) and drive motor (6) are arranged coaxially, and an air inlet (12) is provided on the bottom surface of the bottom ring (10).

5. The CNC boring device for aerospace composite materials according to claim 1, characterized in that, The locking screws (17) are arranged in multiple sets, and the locking screws (17) are threadedly connected to the collar (14), and one end of the locking screws (17) is pressed against the surface of the drill bit (9).

6. The CNC boring device for aerospace composite materials according to claim 1, characterized in that, The inner wall of the back frame (2) is provided with a guide groove (4), and the back surface of the motor box (5) is provided with a guide block (19), and the guide block (19) is inserted into the guide groove (4) and slidably connected to the guide groove (4).

7. The CNC boring device for aerospace composite materials according to claim 1, characterized in that, The base (1) has a through hole (13) on its surface, and the hole (13) is located directly below the drill bit (9).

8. The CNC boring device for aerospace composite materials according to claim 1, characterized in that, The motor housing (5) has heat dissipation holes (18) on its front facade, and the heat dissipation holes (18) are densely distributed.

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