Deep hole directional drilling tool with guide wings

Abstract

The utility model belongs to the technical field of machining tools, particularly relates to a deep hole directional drilling tool with guide wings, and aims to solve the problems that a deep hole drill is not provided with a guide structure and cannot effectively maintain the stability of the drilling tool when facing high-speed rotation and complex cutting force of a machine tool, so that a drilled hole is easy to deflect, the machining precision of a workpiece is seriously influenced and the machining cost is reduced. According to the following scheme, the deep hole directional drilling tool with the guide wings comprises a drill handle; the guide assembly has the advantages that the guide wing can make contact with the hole wall in the drilling process, a drill bit is guided to advance in the preset direction, drilling deviation is effectively reduced, drilling straightness is guaranteed, a drilled hole meets the design requirement, and the rejection rate is reduced; only the guide wings at the corresponding positions need to be replaced, the whole guide assembly or related installation parts do not need to be replaced, and the maintenance material cost and workload are reduced.

Description

Technical Field

[0001] This utility model relates to a directional drilling tool, specifically a deep hole directional drilling tool with guide wings, belonging to the field of machining tool technology. Background Technology

[0002] When a machine tool performs deep hole machining on a workpiece, ensuring the accuracy and straightness of the drilling is the key to machining quality.

[0003] In the prior art, such as the deep hole drill disclosed in announcement number CN222492309U, the aforementioned deep hole drill, through a fixing mechanism, allows the threaded rod to rotate within a rotating groove on a fixed plate by rotating the nut, thereby limiting and fixing the connection. Furthermore, through a cooling mechanism, the deep hole drill is effectively cooled by the liquid outlet tank. However, the aforementioned deep hole drill lacks a guiding structure. When faced with high-speed rotation of the machine tool and complex cutting forces, it cannot effectively maintain the stability of the drill bit, leading to easy deviation of the drill hole, which seriously affects the machining accuracy of the workpiece and increases the scrap rate. Utility Model Content

[0004] The purpose of this invention is to provide a deep hole directional drilling tool with guide wings to solve the problem that the above-mentioned deep hole drills do not have a guiding structure and cannot effectively maintain the stability of the drill when facing high-speed rotation of machine tools and complex cutting forces, which leads to easy deviation of the drill hole, seriously affects the machining accuracy of the workpiece, and increases the scrap rate.

[0005] The present invention achieves the above objectives through the following technical solution: a deep hole directional drilling tool with guide wings, including a drill shank;

[0006] A mounting head is fixedly connected to the top of the drill shank, a drill rod is fixedly connected to the bottom of the drill shank, a drill bit is fixedly connected to the bottom of the drill rod, and a guide assembly is provided on the surface of the drill rod. The guide assembly includes a mounting seat, a telescopic rod, and a guide wing. The mounting seats are fixedly connected to the surface of the drill rod in a circular array. A telescopic rod is installed on the side surface of each mounting seat, and a guide wing is fixedly connected to one end of the telescopic rod.

[0007] As a further improvement of this utility model, a spiral chip removal groove is provided on the surface of the drill bit.

[0008] As a further embodiment of this utility model: the upper surface of the mounting base is provided with a first threaded hole, the side surface of the mounting base is provided with a positioning groove, the first threaded hole and the positioning groove are connected, one end of the telescopic rod is fixedly connected to a positioning block, the surface of the positioning block is provided with a second threaded hole, and a long bolt is threadedly connected to the surface of the positioning block through the second threaded hole. The positioning block is fixedly connected to the mounting base through the cooperation of the first threaded hole, the second threaded hole and the long bolt.

[0009] As a further embodiment of this utility model: the telescopic rod includes a hollow outer rod, an inner rod, and a spring. One end of the hollow outer rod is coaxially and fixedly connected to the positioning block. The inner rod is slidably connected inside the hollow outer rod. A spring is fixedly connected between the inner rod and the hollow outer rod.

[0010] As a further embodiment of this utility model: the surface of the inner rod is symmetrically and fixedly connected with a limiting slider, and the inner wall of the hollow outer rod is symmetrically provided with a limiting groove adapted to the limiting slider, and the limiting slider is slidably disposed in the limiting groove.

[0011] As a further improvement of this utility model, the guide wing has a streamlined curved surface structure.

[0012] As a further improvement of this invention, the surface of the guide vane is provided with a wear-resistant coating made of ceramic composite material.

[0013] The beneficial effects of this utility model are:

[0014] This invention, by setting a guiding component, allows the guide wing to contact the hole wall during drilling, guiding the drill bit forward in a predetermined direction, effectively reducing drilling deviation, ensuring the straightness of the drill hole, and making the drilled hole meet design requirements. Furthermore, a long bolt passing through the first and second threaded holes securely connects the positioning block to the mounting base, thus firmly connecting the guide wing to the mounting base. When the guide wing is severely worn, only the guide wing at the corresponding position needs to be replaced, without replacing the entire guiding component or related mounting parts, reducing maintenance material costs and workload, and improving resource utilization. Timely replacement of worn guide wings ensures the guiding component maintains stable guiding performance, avoids drilling deviation caused by guide wing wear, and guarantees drilling quality.

[0015] This invention, by incorporating an inner rod, a hollow outer rod, and a spring, addresses the impact forces on the drill bit during drilling, which may occur due to uneven workpiece material. The spring connects the inner rod and the hollow outer rod. When the guide wing is impacted, causing the inner rod to slide into the hollow outer rod, the spring compression acts as a buffer, preventing the impact force from directly acting on the guide wing, protecting the equipment, maintaining drilling stability, and preventing drill bit deviation. Simultaneously, due to the spring's elasticity, the inner rod can extend and retract within the hollow outer rod. When encountering different hole diameters or irregular hole walls during drilling, the inner rod automatically adjusts its extension length, ensuring the guide wing always fits tightly against the hole wall, guaranteeing guiding performance, improving drilling accuracy, and reducing scrap rate. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the connection structure of the mounting base, telescopic rod, and guide wing in this utility model;

[0019] Figure 4 This is a schematic diagram showing the disassembled structure of the mounting base, telescopic rod, and guide wing in this utility model;

[0020] Figure 5 This is a cross-sectional view of the connection between the mounting base and the long bolt in this utility model;

[0021] Figure 6 This is a cross-sectional view showing the connection between the mounting base and the positioning block in this utility model;

[0022] Figure 7 This is a cross-sectional view of the connection between the hollow outer rod and the inner rod in this utility model;

[0023] Figure 8 for Figure 7 Enlarged structural diagram at point A in the middle;

[0024] In the diagram: 1. Drill shank; 2. Mounting head; 3. Drill bit; 4. Spiral chip removal groove; 5. Drill rod; 6. Mounting base; 7. First threaded hole; 8. Long rod bolt; 9. Positioning groove; 10. Positioning block; 11. Hollow outer rod; 12. Inner rod; 13. Guide wing; 14. Second threaded hole; 15. Limiting groove; 16. Limiting slider; 17. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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. Example 1

[0026] like Figures 1 to 8 As shown, a deep hole directional drilling tool with guide vanes includes a drill shank 1;

[0027] A mounting head 2 is fixedly connected to the top of the drill shank 1, and a drill rod 5 is fixedly connected to the bottom of the drill shank 1. A drill bit 3 is fixedly connected to the bottom of the drill rod 5. A guide assembly is provided on the surface of the drill rod 5. The guide assembly includes a mounting seat 6, a telescopic rod, and a guide wing 13. The mounting seats 6 are fixedly connected to the surface of the drill rod 5 in a circular array. A telescopic rod is installed on the side surface of each mounting seat 6. A guide wing 13 is fixedly connected to one end of the telescopic rod. The guide wing 13 can contact the hole wall during drilling, guide the drill bit 3 to move forward in a predetermined direction, effectively reduce drilling deviation, ensure the straightness of the drilling, and make the drilled hole meet the design requirements.

[0028] Furthermore, the surface of the drill bit 3 is provided with a spiral chip removal groove 4. The spiral chip removal groove 4 allows the chips to be smoothly discharged out of the hole along the spiral groove, preventing the chips from accumulating in the hole and avoiding the chips from scratching the surface of the machined hole and affecting the drilling quality.

[0029] Furthermore, the upper surface of the mounting base 6 is provided with a first threaded hole 7, and the side surface of the mounting base 6 is provided with a positioning groove 9. The first threaded hole 7 and the positioning groove 9 are connected. One end of the telescopic rod is fixedly connected to a positioning block 10. The surface of the positioning block 10 is provided with a second threaded hole 14. A long bolt 8 is threadedly connected to the surface of the positioning block 10 through the second threaded hole 14. The positioning block 10 is fixedly connected to the mounting base 6 through the cooperation of the first threaded hole 7, the second threaded hole 14, and the long bolt 8. The long bolt 8 passes through the first threaded hole 7 and the second threaded hole 14, so that the positioning block 10 is fixedly connected to the mounting base 6, thereby firmly connecting the guide wing 13 to the mounting base 6. When the guide wing 13 is severely worn, only the guide wing 13 at the corresponding position needs to be replaced, without replacing the entire guide assembly or related installation parts, which reduces maintenance material costs and workload, and improves resource utilization. Moreover, timely replacement of worn guide wings 13 can ensure that the guide assembly can stably perform its guiding performance, avoid drilling deviation caused by wear of the guide wing 13, and ensure drilling quality. Example 2

[0030] Improvements based on Example 1:

[0031] Furthermore, the telescopic rod includes a hollow outer rod 11, an inner rod 12, and a spring 17. One end of the hollow outer rod 11 is coaxially and fixedly connected to the positioning block 10. The inner rod 12 is slidably connected inside the hollow outer rod 11. A spring 17 is fixedly connected between the inner rod 12 and the hollow outer rod 11. During drilling, due to the possibility of uneven workpiece material, the drill bit will be subjected to impact force. The spring 17 connects the inner rod 12 and the hollow outer rod 11. When the guide wing 13 is impacted, causing the inner rod 12 to slide into the hollow outer rod 11, the spring 17 is compressed to play a buffering role, avoiding the impact force from acting directly on the guide wing 13, protecting the equipment and maintaining drilling stability, and preventing the drill bit 3 from deviating. At the same time, due to the elasticity of the spring 17, the inner rod 12 can extend and retract within the hollow outer rod 11. When encountering different hole diameters or irregular hole walls during drilling, the inner rod 12 can automatically adjust its extension length, so that the guide wing 13 always fits tightly against the hole wall, ensuring the guiding effect and improving drilling accuracy.

[0032] Furthermore, the inner rod 12 is symmetrically and fixedly connected to a limiting slider 16, and the inner wall of the hollow outer rod 11 is symmetrically provided with a limiting groove 15 that is adapted to the limiting slider 16. The limiting slider 16 is slidably disposed in the limiting groove 15.

[0033] Furthermore, the guide vane 13 has a streamlined curved surface structure, which can greatly reduce the flow resistance of the coolant during machining, allowing the coolant to circulate more smoothly around the drill bit, thus improving the cooling and chip removal effect.

[0034] Furthermore, the surface of the guide vane 13 is provided with a wear-resistant coating made of ceramic composite material. Since ceramic composite material has high hardness, high wear resistance and good chemical stability, it can effectively enhance the wear resistance of the guide vane 13, extend its service life, and reduce the maintenance cost caused by frequent replacement of the guide vane 13.

[0035] Working principle: During deep hole drilling, the operator first installs the deep hole directional drilling tool with guide vanes 13 onto the drilling equipment using the mounting head 2, and then starts the equipment by holding the drill shank 1. At this time, power is transmitted sequentially through the drill shank 1 and drill rod 5 to the drill bit 3, causing the drill bit 3 to rotate at high speed, thereby performing the drilling operation on the workpiece;

[0036] During the drilling process, the guide wing 13 will contact the hole wall. Due to the unique structure of the telescopic rod, the guide wing 13 can adaptively adjust its position according to the actual condition of the hole wall. The inner rod 12 can slide inside the hollow outer rod 11, and the spring 17 between the two plays a key role in buffering and adaptive adjustment. When encountering impact force, the spring 17 will compress to buffer the force. When the hole wall is irregular or the hole diameter changes, based on the elasticity of the spring 17, the inner rod 12 can extend and retract accordingly, thereby ensuring that the guide wing 13 is always in close contact with the hole wall, and thus guiding the drill bit 3 to move accurately in the predetermined direction. At the same time, the limiting slider 16 on the surface of the inner rod 12 and the limiting groove 15 on the inner wall of the hollow outer rod 11 cooperate with each other to effectively limit the movement trajectory of the inner rod 12 and ensure the stable operation of the telescopic rod. In addition, the drill bit 3 has a spiral chip removal groove 4 on its surface. The chips generated during drilling will be smoothly discharged out of the hole through this groove, avoiding chip accumulation and scratching of the hole wall, ensuring drilling quality and efficiency, and reducing the scrap rate.

[0037] In terms of drilling accuracy, the guide wing 13 contacts the hole wall to guide the drill bit 3, which can significantly reduce drilling deviation and ensure the straightness of the hole, fully meeting the requirements of high-precision drilling. From a maintenance perspective, the guide wing 13 is connected to the mounting base 6 by means of components such as the long rod bolt 8. When the guide wing 13 wears, the replacement process is very simple, greatly reducing maintenance costs and workload and improving resource utilization. In terms of durability and stability, the spring 17 inside the telescopic rod can buffer the impact force, protect the equipment and maintain drilling stability, while the ceramic wear-resistant coating on the surface of the guide wing 13 enhances its wear resistance and effectively extends its service life. In terms of adaptability, the elasticity of the spring 17 allows the guide wing 13 to adapt well to different hole diameters and irregular hole walls, always maintaining a good guiding effect. In addition, the streamlined curved surface structure of the guide wing 13 can reduce the flow resistance of coolant, further improving the cooling and chip removal effect.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A deep-hole directional drilling tool with guide vanes, characterized in that: Including drill shank (1); The top end of the drill shank (1) is fixedly connected to the mounting head (2), the bottom end of the drill shank (1) is fixedly connected to the drill rod (5), the bottom end of the drill rod (5) is fixedly connected to the drill bit (3), the surface of the drill rod (5) is provided with a guide assembly, the guide assembly includes a mounting seat (6), a telescopic rod and a guide wing (13), the mounting seats (6) are fixedly connected to the surface of the drill rod (5) in a circular array, and a telescopic rod is installed on the side surface of each mounting seat (6), and a guide wing (13) is fixedly connected to one end of the telescopic rod.

2. The deep hole directional drilling tool with guide vanes according to claim 1, characterized in that: The surface of the drill bit (3) is provided with a spiral chip removal groove (4).

3. The deep hole directional drilling tool with guide vanes according to claim 1, characterized in that: The upper surface of the mounting base (6) is provided with a first threaded hole (7), and the side surface of the mounting base (6) is provided with a positioning groove (9). The first threaded hole (7) and the positioning groove (9) are connected. One end of the telescopic rod is fixedly connected to a positioning block (10). The surface of the positioning block (10) is provided with a second threaded hole (14). The surface of the positioning block (10) is threaded with a long bolt (8) through the second threaded hole (14). The positioning block (10) is fixedly connected to the mounting base (6) through the cooperation of the first threaded hole (7), the second threaded hole (14) and the long bolt (8).

4. The deep hole directional drilling tool with guide vanes according to claim 3, characterized in that: The telescopic rod includes a hollow outer rod (11), an inner rod (12), and a spring (17). One end of the hollow outer rod (11) is coaxially fixedly connected to the positioning block (10). The inner rod (12) is slidably connected inside the hollow outer rod (11). A spring (17) is fixedly connected between the inner rod (12) and the hollow outer rod (11).

5. The deep hole directional drilling tool with guide vanes according to claim 4, characterized in that: The inner rod (12) is symmetrically fixedly connected to a limiting slider (16), and the inner wall of the hollow outer rod (11) is symmetrically provided with a limiting groove (15) that is adapted to the limiting slider (16). The limiting slider (16) is slidably disposed in the limiting groove (15).

6. The deep hole directional drilling tool with guide vanes according to claim 4, characterized in that: The guide vane (13) has a streamlined curved surface structure.

7. The deep hole directional drilling tool with guide vanes according to claim 6, characterized in that: The surface of the guide wing (13) is provided with a wear-resistant coating made of ceramic composite material.

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