Gun drill of deep hole drilling machine
By setting spiral grooves and cooling holes on the gun drill, the problem of chip accumulation caused by the straight discharge groove of the gun drill is solved, achieving more efficient chip removal and cooling, and improving machining accuracy and stability.
Patent Information
- Application Number
- CN202520415168.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Gun drills typically have vertical drain channels, which results in poor drainage and makes it easy for chips to accumulate and clog during the drilling process.
The design employs a spiral groove, which connects with the connecting groove at the intersection, providing a longer chip removal path. Spiral grooves, cooling holes, and sealing grooves are also provided on the gun barrel to enhance chip removal and cooling effects.
The spiral groove design effectively avoids chip accumulation and clogging, improves machining accuracy and hole surface quality, enhances cooling effect and gun barrel stability, and extends service life.
Smart Images
Figure CN223848160U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to gun drill technical field, concretely is a deep hole drilling machine gun drill. BACKGROUND
[0002] Gun drill belongs to the special deep hole machining tool of external chip removal, is mainly used in processing deep hole, its processing range is extensive, including but not limited to die steel material, glass fiber, Teflon and so on plastic and high-strength alloy (such as P20 and chromium-nickel-iron alloy) and so on material, in the deep hole machining of the tolerance and surface roughness requirement more strictly, gun drill can guarantee the size accuracy, position accuracy and straightness of hole.
[0003] At present, the drain groove of gun drill is generally straight " one " setting, and the drain groove has poor drainage effect when gun drill drills a hole. UTILITY MODEL CONTENTS
[0004] The utility model discloses a deep hole drilling machine gun drill, solve the drain groove of gun drill generally straight " one " setting, and the drain groove has poor drainage effect when gun drill drills a hole.
[0005] The application embodiment provides a deep hole drilling machine gun drill, which comprises a gun barrel, a gun head is fixedly connected to one side of the gun barrel, a connecting groove is formed in the outer wall of the gun head, a spiral groove is formed in the outer wall of the gun barrel, and the intersection of the spiral groove and the connecting groove is communicated with each other.
[0006] By adopting the above technical scheme, the spiral groove can more effectively guide the cutting chips to be discharged along the groove, and the spiral design provides a longer chip removal path, avoiding the accumulation and blockage of the cutting chips during drilling.
[0007] Optionally, the side of the gun barrel away from the gun head is fixedly connected with a gun handle.
[0008] By adopting the above technical scheme, the gun handle can be fixed by the gun barrel, and the gun handle can facilitate the installation of the gun drill.
[0009] Optionally, cooling holes are formed in the inner walls of the gun handle, the gun head and the gun barrel.
[0010] By adopting the above technical scheme, the cooling holes can facilitate the circulation of the cooling liquid from the gun handle, the gun barrel and the gun head.
[0011] Optionally, a sealing groove is formed in the side of the gun handle away from the gun barrel, and a sealing ring is sleeved in the inner wall of the gun handle around the sealing groove.
[0012] By adopting the above technical scheme, the sealing ring can prevent leakage at the gun handle.
[0013] Optionally, the sealing groove is located at the periphery of the cooling hole.
[0014] By adopting the technical scheme, the sealing groove is located at the periphery of the cooling hole, and the sealing performance during installation of the gun handle is enhanced.
[0015] Optionally, the gun head, the gun rod and the gun handle are made of hard alloy.
[0016] By adopting the technical scheme, the gun head, the gun rod and the gun handle are made of hard alloy, and the service life is enhanced.
[0017] Compared with the prior art, the beneficial effects of the technical scheme of the application are as follows:
[0018] 1. The technical scheme of the application can more effectively guide the chips to be discharged along the groove by the spiral groove, and the spiral design provides a longer chip removal path, avoiding the accumulation and blockage of the chips during the drilling process.
[0019] 2. The spiral groove can enhance the contact surface of the cooling liquid during discharge and the gun rod, and then enhance the cooling effect of the gun rod during drilling.
[0020] 3. The spiral groove design helps to reduce vibration and deviation during drilling, and since the spiral groove can provide better guiding effect, the gun head is more stable during drilling, thereby improving the machining precision and the surface quality of the hole. BRIEF DESCRIPTION OF DRAWINGS
[0021] Other features, objects and advantages of the application will become more apparent after reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0022] Figure 1 is a front view schematic diagram of a deep hole drilling machine gun drill of the application;
[0023] Figure 2 is a front view sectional view of a deep hole drilling machine gun drill of the application;
[0024] Figure 3 is a front view sectional view of a deep hole drilling machine gun drill of the application; Figure 2 is an enlarged view of A in the middle;
[0025] Figure 4 is a left view schematic diagram of a gun head of a deep hole drilling machine gun drill of the application.
[0026] In the figure: 1, gun rod; 2, gun head; 3, connecting groove; 4, spiral groove; 5, gun handle; 6, cooling hole; 7, sealing ring; 8, sealing groove. DETAILED DESCRIPTION
[0027] Please refer to Figures 1-4The utility model provides a technical scheme: a deep hole drilling machine gun drill, including gun barrel 1, one side of gun barrel 1 is fixedly connected with gun head 2, is established with connecting groove 3 at the outer wall of gun head 2, is established with helical groove 4 at the outer wall of gun barrel 1, the intersection of helical groove 4 and connecting groove 3 is interconnected, one side of gun barrel 1 away from gun head 2 is fixedly connected with gun handle 5.
[0028] In the technical scheme of the utility model, the helical groove 4 can more effectively guide the chip to be discharged along the groove, and the helical design provides a longer chip removal path, avoiding the accumulation and blockage of the chip during the drilling process.
[0029] In addition, the gun barrel 1 can fix the gun handle 5, and the gun handle 5 is convenient to install the gun drill.
[0030] In the technical scheme of the utility model, as shown in Figure 2 and Figure 3 , the gun handle 5 is provided with a sealing groove 8 on the side away from the gun barrel 1, and a sealing ring 7 is sleeved in the inner wall of the gun handle 5 around the sealing groove 8, so that the sealing ring 7 can prevent leakage at the gun handle 5.
[0031] In the technical scheme of the utility model, as shown in Figure 2 , the inner walls of the gun handle 5, the gun head 2 and the gun barrel 1 are provided with cooling holes 6, so that the cooling liquid can flow through the gun handle 5, the gun barrel 1 and the gun head 2, and the sealing groove 8 is located outside the cooling holes 6, thereby enhancing the sealing performance of the gun handle 5 during installation.
[0032] In the technical scheme of the utility model, as shown in Figure 1 , the gun head 2, the gun barrel 1 and the gun handle 5 are made of hard alloy, thereby enhancing the service life.
[0033] During use, the gun head 2, the gun barrel 1 and the gun handle 5 are made of hard alloy, thereby enhancing the service life, the cooling holes 6 can facilitate the flow of the cooling liquid through the gun handle 5, the gun barrel 1 and the gun head 2, the sealing groove 8 and the sealing ring 7 are located outside the cooling holes 6, thereby enhancing the sealing performance of the gun handle 5 during installation, the helical groove 4 can more effectively guide the chip to be discharged along the groove, the helical design provides a longer chip removal path, avoiding the accumulation and blockage of the chip during the drilling process, the helical groove 4 can enhance the contact surface with the gun barrel 1 when the cooling liquid is discharged, thereby enhancing the cooling effect of the gun barrel 1 during drilling, the design of the helical groove 4 helps to reduce the vibration and deviation during the drilling process, and the gun head 2 is more stable during the drilling process due to the better guiding effect of the helical groove 4, thereby improving the machining precision and the surface quality of the hole.
Claims
1. A deep hole drilling machine gun drill characterized by: Including the gun rod (1), one side of the gun rod (1) is fixedly connected with the gun head (2), the outer wall of the gun head (2) is provided with a connecting groove (3), the outer wall of the gun rod (1) is provided with a spiral groove (4), and the intersection of the spiral groove (4) and the connecting groove (3) is communicated with each other.
2. A deep hole drilling machine gun drill according to claim 1, wherein, The side of the gun rod (1) away from the gun head (2) is fixedly connected with a gun handle (5).
3. A deep hole drilling machine gun drill according to claim 2, wherein, Cooling holes (6) are respectively arranged in the inner walls of the gun handle (5), the gun head (2) and the gun rod (1).
4. The gun drill of claim 3, wherein, A sealing groove (8) is arranged on the side face of the gun handle (5) away from the gun rod (1), and a sealing ring (7) is sleeved on the inner wall of the gun handle (5) around the sealing groove (8).
5. A deep hole drilling machine gun drill according to claim 4, wherein, The sealing groove (8) is located on the periphery of the cooling hole (6).
6. The gun drill of claim 1, wherein, The materials of the gun head (2), the gun rod (1) and the gun handle (5) are hard alloys.