Cubic boron nitride blade with high wear resistance

Abstract

The utility model belongs to the technical field of cutters, and particularly discloses a high-abrasion-resistance cubic boron nitride blade which comprises a blade body, a cutter head arranged on the blade body, a sliding groove formed in the blade body, an annular groove formed in the blade body, a cooling groove formed in the blade body, and a blade cover arranged on the blade body. A cooling groove is formed in the blade body, the cooling groove is close to the tool bit, the interior of the cooling groove is communicated with the interior of the annular groove, a flowing groove is formed in the blade body, and the interior of the flowing groove is communicated with the interior of the cooling groove and the interior of the annular groove. And cooling liquid is injected into the annular groove from the water inlet hole, the plug is placed back to the water inlet hole again for blocking, and the cooling liquid can flow into the cooling groove through the annular groove, so that the cooling liquid cools the tool bit to a certain extent after the tool bit generates heat.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to a cubic boron nitride blade with high wear resistance. Background Art

[0002] Metal parts processing is inseparable from cutting tools, especially with the development of science and technology and the improvement of materials, the requirements for processing cutting tools are getting higher and higher. Polycrystalline cubic boron nitride blades are synthesized by artificial methods under high temperature and high pressure conditions using cubic boron nitride powder and a small amount of binder. It has high hardness, thermal stability and chemical inertness. Its thermal stability is much higher than that of diamond, and it has greater chemical stability to iron-based metal elements, so it is often used for cutting ferrous metals.

[0003] At present, some existing cubic boron nitride blades are synthesized by artificial methods using cubic boron nitride powder and a small amount of binder under high temperature and high pressure conditions. However, when workers use cubic boron nitride blades for cutting, since the blades have no heat dissipation structure, the cubic boron nitride blades will generate heat due to friction on the surface during the cutting process. If the heat cannot be dissipated, the blades are easily damaged and their service life is affected. In view of the above situation, technical innovation is carried out on the basis of existing devices. Utility Model Content

[0004] The utility model aims to provide a cubic boron nitride blade with high wear resistance to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly wear-resistant cubic boron nitride blade, comprising a blade body, a blade head is arranged on the blade body, a slide groove is opened on the blade body, an annular groove is opened inside the blade body, a cooling groove is opened inside the blade body, the cross-section of the cooling groove is V-shaped, the interior of the cooling groove is connected with the interior of the annular groove, a flow groove is opened inside the blade body, the interior of the flow groove is connected with the interior of the cooling groove and the annular groove respectively, a water inlet hole and a drainage hole are opened on the lower surface of the interior of the annular groove, the interior of the water inlet hole and the drainage hole are both provided with plugs, the interior of the blade body is opened with a fixing hole extending to the outside thereof, and the interior of the blade body is opened with a heat dissipation hole connected with the interior of the fixing hole.

[0006] Preferably, a T-shaped slot is provided inside the blade body, and the inside of the T-shaped slot is communicated with the inside of the fixing hole.

[0007] Preferably, a T-shaped plate is slidably connected inside the T-shaped groove, the T-shaped plate is in a T-shape, and a slope is arranged on the top of the T-shaped plate.

[0008] Preferably, one side of the T-shaped plate is fixedly connected to a spring, a side of the spring away from the T-shaped plate is fixedly connected to an inner wall of the T-shaped slot, and a wear-resistant layer is provided on the cutter head.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. For the highly wear-resistant cubic boron nitride blade, the staff pulls out the plug inside the water inlet hole, injects the coolant into the annular groove from the water inlet hole, and puts the plug back into the water inlet hole to block it. The coolant can flow into the cooling groove through the annular groove, so that the coolant can cool the cutter head to a certain extent after the cutter head generates heat, which can reduce the slow heat dissipation of the heat generated by the cutter head when processing the workpiece to a certain extent, and reduce the damage to the cutter head caused by slow heat dissipation, which can cause damage to the cutter head.

[0011] 2. For the highly wear-resistant cubic boron nitride blade, the staff can install the blade body on the machine tool by passing the bolt through the fixing hole. At the same time, the inclined surface set on the top of the T-shaped plate allows the bolt to push the T-shaped plate to move more smoothly when entering the fixing hole, so that the bolt can move more smoothly, and the spring exerts force on the T-shaped plate, so that the T-shaped plate can tighten and fix the bolt after the blade body is fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of a blade of a highly wear-resistant cubic boron nitride blade of the utility model;

[0013] Figure 2 This is a schematic diagram of the annular groove structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the T-slot structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the wear-resistant layer structure of the utility model.

[0016] In the figure: 1. Blade body; 2. Blade head; 3. Fixing hole; 4. T-shaped plate; 5. Annular groove; 6. Plug; 7. Drain hole; 8. Cooling groove; 9. Flow groove; 10. Heat dissipation hole; 11. Spring; 12. T-shaped groove; 13. Wear-resistant layer; 14. Water inlet hole; 15. Slide groove. DETAILED DESCRIPTION

[0017] See also Figure 1-4The utility model provides a technical solution: a highly wear-resistant cubic boron nitride blade, including a blade body 1, a blade head 2 is arranged on the blade body 1, the number of the blade heads 2 is three, a slide groove 15 is provided on the blade body 1, and the slide groove 15 can effectively reduce the accumulation of waste chips generated by the blade head during cutting near the blade head 2, thereby affecting the cutting of the blade head 2, and keep the blade body 1 as clean and beautiful as possible, an annular groove 5 is provided inside the blade body 1, and a cooling groove 8 is provided inside the blade body 1, the cross-section of the cooling groove 8 is V-shaped, the interior of the cooling groove 8 is connected with the interior of the annular groove 5, and the cooling groove 8 can store coolant to cool the blade head 2, thereby reducing the long-term cutting due to overheating. To prevent the occurrence of deformation, a flow groove 9 is provided inside the blade body 1, and the interior of the flow groove 9 is communicated with the interior of the cooling groove 8 and the annular groove 5 respectively. A fixing hole 3 extending to the outside of the blade body 1 is provided inside the blade body 1, and a heat dissipation hole 10 communicated with the interior of the fixing hole 3 is provided inside the blade body 1. There are multiple heat dissipation holes 10, and the heat dissipation holes 10 can further provide heat dissipation for the interior of the blade body 1, so that the heat dissipation effect is further improved, thereby ensuring the work efficiency to a certain extent and extending the service life of the parts to a certain extent. A water inlet hole 14 and a drainage hole 7 are provided on the lower surface of the annular groove 5, and plugs 6 are provided inside the water inlet hole 14 and the drainage hole 7.

[0018] The staff pulls out the plug 6 inside the water inlet hole 14, injects the coolant into the annular groove 5 from the water inlet hole 14, and puts the plug 6 back into the water inlet hole 14 to block it. The coolant can flow into the cooling groove 8 through the annular groove 5, so that the coolant can cool the cutter head 2 to a certain extent after the cutter head 2 generates heat, thereby reducing the slow heat dissipation of the heat generated by the cutter head 2 when processing the workpiece to a certain extent, and reducing the damage to the cutter head 2 caused by the slow heat dissipation, which may cause damage to the cutter head 2. When the coolant needs to be replaced, the staff pulls out the plug 6 inside the drain hole 7, and the waste coolant can flow back into the annular groove 5 through the flow groove 9 and be discharged from the drain hole 7.

[0019] Furthermore, a T-shaped slot 12 is provided inside the blade body 1 , and the inside of the T-shaped slot 12 is communicated with the inside of the fixing hole 3 . There are multiple T-shaped slots 12 distributed in a ring shape.

[0020] Furthermore, a T-shaped plate 4 is slidably connected inside the T-shaped groove 12 . The T-shaped plate 4 is in a T-shape, and a slope is arranged on the top of the T-shaped plate.

[0021] Furthermore, one side of the T-shaped plate 4 is fixedly connected to the spring 11 , and the side of the spring 11 away from the T-shaped plate 4 is fixedly connected to the inner wall of the T-shaped slot 12 .

[0022] The staff can install the blade body 1 on the machine tool by passing the bolt through the fixing hole 3. At the same time, the inclined surface set on the top of the T-shaped plate 4 can make the bolt push the T-shaped plate 4 to move more smoothly when entering the fixing hole 3, so that the bolt can move more smoothly, and the force of the spring 11 on the T-shaped plate 4 can make the T-shaped plate 4 tighten and fix the bolt after the blade body 1 is fixed.

[0023] Furthermore, a wear-resistant layer 13 is provided on the cutter head 2. The material of the wear-resistant layer 13 is a TiCN coating. The TiCN coating can make the cutter head 2 more wear-resistant during the cutting process, effectively reduce its loss during cutting, and extend its service life to a certain extent.

[0024] Working principle: For this type of highly wear-resistant cubic boron nitride blade, the staff first pulls out the plug 6 inside the water inlet hole 14, injects the coolant into the annular groove 5 from the water inlet hole 14, and puts the plug 6 back into the water inlet hole 14 to block it. The coolant can flow into the cooling groove 8 through the annular groove 5, so that the coolant cools the cutter head 2 to a certain extent after the cutter head 2 generates heat, and to a certain extent reduces the slow heat dissipation of the heat generated by the cutter head 2 when processing the workpiece, and reduces the damage to the cutter head 2 caused by the slow heat dissipation, causing damage to the cutter head 2. When the coolant needs to be replaced, the staff pulls out the plug 6 inside the drain hole 7. The staff can install the blade body 1 on the machine tool by passing the bolt through the fixing hole 3. At the same time, through the inclined surface set on the top of the T-shaped plate 4, the bolt can push the T-shaped plate 4 to move more smoothly in the process of entering the fixing hole 3, so that the bolt can move more smoothly, and through the force of the spring 11 on the T-shaped plate 4, the T-shaped plate 4 can tighten and fix the bolt after the blade body 1 is fixed.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly wear-resistant cubic boron nitride blade, comprising a blade body (1), on which a blade head (2) is arranged, characterized in that: The blade body (1) is provided with a slide groove (15), the interior of the blade body (1) is provided with an annular groove (5), the interior of the blade body (1) is provided with a cooling groove (8), the cross section of the cooling groove (8) is V-shaped, the interior of the cooling groove (8) is communicated with the interior of the annular groove (5), the interior of the blade body (1) is provided with a flow groove (9), the interior of the flow groove (9) is communicated with the interior of the cooling groove (8) and the interior of the annular groove (5), respectively, the interior of the blade body (1) is provided with a fixing hole (3) extending to the outside thereof, the lower surface of the interior of the annular groove (5) is provided with a water inlet hole (14) and a drainage hole (7), and plugs (6) are provided inside the water inlet hole (14) and the drainage hole (7).

2. The highly wear-resistant cubic boron nitride blade according to claim 1, characterized in that: A heat dissipation hole (10) which is in communication with the interior of the fixing hole (3) is provided inside the blade body (1).

3. The highly wear-resistant cubic boron nitride blade according to claim 1, characterized in that: A T-shaped slot (12) is provided inside the blade body (1), and the inside of the T-shaped slot (12) is communicated with the inside of the fixing hole (3).

4. The highly wear-resistant cubic boron nitride blade according to claim 3, characterized in that: A T-shaped plate (4) is slidably connected inside the T-shaped groove (12); the T-shaped plate (4) is in a T-shape, and a slope is provided on the top of the T-shaped plate (4).

5. The highly wear-resistant cubic boron nitride blade according to claim 4, characterized in that: One side of the T-shaped plate (4) is fixedly connected to a spring (11), and the side of the spring (11) away from the T-shaped plate (4) is fixedly connected to the inner wall of the T-shaped groove (12).

6. The highly wear-resistant cubic boron nitride blade according to claim 1, characterized in that: The cutter head (2) is provided with a wear-resistant layer (13).

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