A drill sleeve for a deep hole drill bit

Abstract

The utility model provides a kind of drill bushing for deep hole drill, including drill bushing main part: two installation grooves are set in the inside of drill bushing main part, the inside wall of two installation grooves is fixedly connected with limit rod on one side, the outer surface of two limit rods is slidably connected with sliding frame, the side of two sliding frames is apart from each other and is equipped with a plurality of threaded holes.The utility model can adjust the position of drill bushing mounting seat by the cooperation of installation groove, limit rod, sliding frame, threaded hole and fixed assembly, so that the distance between drill bushing mounting seat and drill bushing main part changes, can adapt to drill bit of different length, improve the applicability and use range of drill bushing, and when using drill bit of different length, the adjusted drill bushing mounting seat can provide optimal support and stability, ensure the accurate positioning of drill bit in deep hole drilling process, greatly improve drilling accuracy.

Description

Technical Field

[0001] This utility model relates to the field of deep hole drill bits, and in particular to a drill bushing for deep hole drill bits. Background Technology

[0002] A drill bushing is a tool used for deep hole machining. It is usually used with the deep hole drill bit to improve machining accuracy, stability and extend tool life. The drill bushing is usually installed during the drilling process as a guide to help the drill bit enter the hole stably, prevent the drill bit from deviating or vibrating, and thus ensure the accuracy and surface quality of the hole during the machining process.

[0003] Chinese patent CN202322026180.8 discloses a drill bushing for deep hole drill bits, including a drill bushing mounting base. The surface of the mounting base has mounting holes. A drill bushing body is mounted on the front side of the mounting base. The drill bushing body is cylindrical with partially flat sides. A drill bushing swivel ring is fixedly connected to the side of the drill bushing body near the mounting base, and the swivel ring is rotatably connected to the interior of the mounting base. A drill bushing head is provided on the side of the drill bushing body away from the mounting base. The interiors of the mounting base, the drill bushing body, and the drill bushing head are interconnected. By rotating the drill bushing body on the mounting base, the flat surfaces of the drill bushing body can be adjusted to face and parallel the ends of the ring die on both sides, ensuring that the drill bushing does not obstruct the area near the end of the ring die, facilitating drilling near the end of the ring die. Throughout the process, the position of the ring die does not need to be adjusted.

[0004] Existing drill bushings for deep hole drill bits are generally mounted on the drill bit via a drill bushing mounting base. However, since the position of the drill bushing mounting base is often fixed and cannot be adjusted, it cannot be adapted to drill bits of different lengths. This results in poor applicability of the drill bushing, reduces its application range, and fails to provide optimal support and stability when using drill bits of different lengths, thus affecting drilling accuracy. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a drill bushing for deep hole drill bits.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a drill bushing for a deep hole drill bit, comprising a drill bushing body: two mounting grooves are opened inside the drill bushing body, a limiting rod is fixedly connected to one side of the inner wall of each of the two mounting grooves, a sliding frame is slidably connected to the outer surface of each of the two limiting rods, a plurality of threaded holes are opened on the opposite side of each of the two sliding frames, one side of each of the two sliding frames extends to the outside of the drill bushing body and is fixedly connected to a drill bushing mounting seat, a fixing component is provided at one end of the drill bushing body, an anti-wear component is provided inside the drill bushing body, and two bolts pass through the external threads of the drill bushing body.

[0007] By setting limit blocks and sliding frames, the drill bushing mounting base can be moved. At the same time, with the help of fixing components and several threaded holes, the position of the drill bushing mounting base can be fixed, thereby adjusting the distance between the drill bushing body and the drill bushing mounting base. This allows the position of the drill bushing mounting base to be adjusted, so that the drill bushing body can adapt to drill bits of different lengths.

[0008] The fixing assembly includes two mounting plates fixedly connected to one end of the drill bushing body. Each of the two mounting plates has a threaded opening on one side away from each other, and a bolt is threaded into the threaded opening.

[0009] By rotating bolt two, one end of it passes through the threaded opening and threaded through one of the threaded holes, thus fixing the sliding frame.

[0010] The diameter of the threaded opening is the same as the diameter of the threaded hole.

[0011] The second bolt is adapted to the threaded hole.

[0012] The wear-resistant component includes an installation ring disposed inside the drill bushing body. Two rolling grooves are formed on the outside of the installation ring, and several balls are slidably connected inside the rolling grooves.

[0013] A wear-resistant sleeve is fixedly connected to the outer surfaces of several balls, and two rolling grooves are formed on the outer surface of the wear-resistant sleeve.

[0014] By setting ball bearings and cooperating with rolling groove one and rolling groove two, the wear-resistant sleeve can be driven to rotate when the deep hole drill bit rotates. This can drive the ball bearings to move in rolling groove one, which can reduce friction, reduce wear on the inner wall of the drill sleeve body, and improve service life.

[0015] One end of each of the two bolts penetrates into the interior of the mounting ring.

[0016] The surface of the drill bushing mounting base has two threaded openings.

[0017] Compared with the prior art, the beneficial effects of this utility model include:

[0018] 1. By using a combination of structures such as mounting slots, limiting rods, sliding frames, threaded holes, and fixing components, the position of the drill bushing mounting base can be adjusted, thereby changing the distance between the drill bushing mounting base and the drill bushing body. This allows it to accommodate drill bits of different lengths, improving the applicability and range of use of the drill bushing. At the same time, when using drill bits of different lengths, the adjusted drill bushing mounting base can provide optimal support and stability, ensuring precise positioning of the drill bit during deep hole drilling and greatly improving drilling accuracy.

[0019] 2. By setting up the anti-wear component, the friction between the drill bit and the drill bit body can be reduced, thereby increasing the service life of the drill bit. At the same time, the anti-wear component can be disassembled and replaced separately using bolt two, avoiding the need to replace the whole drill bushing if the inner surface of the drill bushing body is damaged, thus reducing replacement costs and improving the practicality of drill bushings for deep hole drill bits. Attached Figure Description

[0020] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0021] Figure 1 The schematic diagram shows an overall three-dimensional structural schematic diagram according to one embodiment of the present invention.

[0022] Figure 2 The schematic diagram shows another overall three-dimensional structural schematic diagram according to one embodiment of the present invention.

[0023] Figure 3 The schematic diagram shows a structural schematic of a mounting ring according to one embodiment of the present invention.

[0024] Figure 4 The schematic diagram shows a structural schematic of an anti-wear sleeve according to one embodiment of the present invention.

[0025] Figure 5 The schematic diagram shows a structural schematic of a drill bushing body according to one embodiment of the present invention.

[0026] In the diagram, the following are labeled: 1. Drill bushing body; 2. Mounting groove; 3. Limiting rod; 4. Sliding frame; 5. Threaded hole; 6. Drill bushing mounting base; 7. Bolt 1; 8. Mounting plate; 9. Threaded opening 1; 10. Bolt 2; 11. Mounting ring; 12. Rolling groove 1; 13. Ball bearing; 14. Wear-resistant sleeve; 15. Rolling groove 2; 16. Threaded opening 2. Detailed Implementation

[0027] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0028] According to one embodiment of the present invention, in conjunction with Figure 1-5 As shown. A drill bushing for a deep hole drill bit includes a drill bushing body 1: the drill bushing body 1 has two mounting grooves 2 inside, and a limit rod 3 is fixedly connected to one side of the inner wall of each of the two mounting grooves 2. A sliding frame 4 is slidably connected to the outer surface of each of the two limit rods 3. Several threaded holes 5 are provided on the opposite side of each of the two sliding frames 4. One side of each of the two sliding frames 4 extends to the outside of the drill bushing body 1 and is fixedly connected to a drill bushing mounting seat 6. A fixing component is provided at one end of the drill bushing body 1. An anti-wear component is provided inside the drill bushing body 1. Two bolts 7 pass through the external threads of the drill bushing body 1. Two threaded openings 1 are provided on the surface of the drill bushing mounting seat 6. 6. The drill bushing mounting base 6 is annular in shape, the limiting rod 3 is T-shaped, and several threaded holes 5 are arranged in a rectangular array on one side of the sliding frame 4. The fixing component is used to fix the sliding frame 4, and the anti-wear component is used to reduce the friction between the drill bit and the drill bushing body 1. By setting the limiting block and the sliding frame 4, the drill bushing mounting base 6 can be moved. At the same time, with the fixing component and several threaded holes 5, the position of the drill bushing mounting base 6 can be fixed, thereby adjusting the distance between the drill bushing body 1 and the drill bushing mounting base 6. This allows the position of the drill bushing mounting base 6 to be adjusted, so that the drill bushing body 1 can adapt to drill bits of different lengths.

[0029] The fixing assembly includes two mounting plates 8 fixedly connected to one end of the drill bushing body 1. Each mounting plate 8 has a threaded opening 9 on its opposite side. A bolt 10 is threaded inside the threaded opening 9. The diameter of the threaded opening 9 is the same as the diameter of the threaded hole 5. The bolt 10 is adapted to the threaded hole 5. The two mounting plates 8 are symmetrical about the center of the drill bushing body 1. One side of the sliding frame 4 slides through to the back of the mounting plate 8. By rotating the bolt 10, one end of it passes through the threaded opening 9 and is threaded through one of the threaded holes 5, thereby fixing the sliding frame 4.

[0030] The anti-wear component includes a mounting ring 11 disposed inside the drill bushing body 1. Two rolling grooves 12 are formed on the outside of the mounting ring 11. Several balls 13 are slidably connected inside the rolling grooves 12. An anti-wear sleeve 14 is fixedly connected between the outer surfaces of the balls 13. Two rolling grooves 15 are formed on the outer surface of the anti-wear sleeve 14. One end of each of the two bolts 7 penetrates into the inside of the mounting ring 11. A portion of the outer surface of the balls 13 is fixedly connected inside the rolling grooves 15. By setting the balls 13 and cooperating with the rolling grooves 12 and 15, the anti-wear sleeve 14 can be rotated when the deep hole drill bit rotates, which can drive the balls 13 to move in the rolling grooves 12, thereby reducing friction, reducing wear on the inner wall of the drill bushing body 1, and improving service life.

[0031] In this embodiment, when the anti-wear sleeve 14 needs to be replaced, the two bolts 7 can be rotated to release the fixing of the mounting ring 11, thereby removing the mounting ring 11 and the anti-wear sleeve 14. Then, the new mounting ring 11 and the anti-wear sleeve 14 are placed inside the drill bushing body 1. Then, by tightening the bolts 7, one end of which is threaded through the inside of the mounting ring 11, the mounting ring 11 can be fixedly connected to the inside of the drill bushing body 1. Then, when drilling, the drill bit will drive the anti-wear sleeve 14 to rotate, so that the ball 13 moves in the rolling groove 12, which can reduce the friction between the drill bushing body 1 and the drill bit, reduce the wear on the inner surface of the drill bushing body 1, and improve the service life of the drill bushing body 1.

[0032] When the position of the drill bushing mounting base 6 needs to be adjusted, the two bolts 10 are removed by rotating to release the two sliding frames 4 from their fixation, allowing the sliding frames 4 to slide outside the limit rod 3. Then, simply push the drill bushing mounting base 6 to move the sliding frames 4 outside the limit rod 3 until the distance between the drill bushing body 1 and the drill bushing mounting base 6 is approximately equal. At this point, the two bolts 10 are screwed into the corresponding threaded holes 5 on the two sliding frames 4 through the two mounting plates 8, thereby fixing the external position of the sliding frames 4 and completing the adjustment of the position of the drill bushing mounting base 6, so that the drill bushing body 1 can adapt to drill bits of different lengths.

[0033] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A drill bushing for a deep hole drill bit, characterized in that, Includes a drill bushing body (1): The drill bushing body (1) has two mounting grooves (2) inside. One side of the inner wall of each of the two mounting grooves (2) is fixedly connected to a limiting rod (3). The outer surface of each of the two limiting rods (3) is slidably connected to a sliding frame (4). The two sliding frames (4) are provided with several threaded holes (5) on the opposite side. One side of each of the two sliding frames (4) extends through to the outside of the drill bushing body (1) and is fixedly connected to a drill bushing mounting seat (6). One end of the drill bushing body (1) is provided with a fixing component. The inside of the drill bushing body (1) is provided with an anti-wear component. The external threads of the drill bushing body (1) are threaded through by two bolts (7).

2. The drill bushing for a deep hole drill bit according to claim 1, characterized in that, The fixing assembly includes two mounting plates (8) fixedly connected to one end of the drill bushing body (1). Each of the two mounting plates (8) has a threaded opening (9) on the opposite side. The threaded opening (9) is internally threaded with a bolt (10).

3. A drill bushing for a deep hole drill bit according to claim 2, characterized in that, The diameter of the threaded opening (9) is the same as the diameter of the threaded hole (5).

4. A drill bushing for a deep hole drill bit according to claim 2, characterized in that, The second bolt (10) is adapted to the threaded hole (5).

5. A drill bushing for a deep hole drill bit according to claim 1, characterized in that, The wear-resistant component includes an installation ring (11) disposed inside the drill bushing body (1). Two rolling grooves (12) are opened on the outside of the installation ring (11), and several balls (13) are slidably connected inside the rolling grooves (12).

6. A drill bushing for a deep hole drill bit according to claim 5, characterized in that, A wear-resistant sleeve (14) is fixedly connected between the outer surfaces of several balls (13), and two rolling grooves (15) are opened on the outer surface of the wear-resistant sleeve (14).

7. A drill bushing for a deep hole drill bit according to claim 5, characterized in that, One end of each of the two bolts (7) extends into the interior of the mounting ring (11).

8. A drill bushing for a deep hole drill bit according to claim 1, characterized in that, The surface of the drill bushing mounting base (6) has two threaded openings (16).

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