High-strength drill bit

Abstract

The utility model relates to the field of machining tools, in particular to a high-strength drill bit which comprises a handle part, a cutting part is fixedly connected to the surface of the bottom end of the handle part and comprises a cutting head at the bottom, a pouring cavity is formed in a cutting part cylinder, and spiral chip grooves are symmetrically formed in the outer wall of the cutting part cylinder. The mounting grooves are symmetrically formed in the outer wall of the cutting head cylinder, the cutting blades are mounted at the mounting grooves, the cutting blades are fixedly mounted through the fixing parts, the mounting grooves are formed in the cutting head, and the cutting blades convenient to disassemble and replace are fixedly mounted at the mounting grooves through the fixing parts, so that when the cutting blades are abraded, the cutting blades are prevented from being damaged. According to the drill bit, the cutting blade can be replaced, the drill bit does not need to be replaced, and liquid titanium including but not limited to the filling cavity is filled, so that the overall cylinder strength of the cutting part of the drill bit is higher, the drill bit cannot be easily twisted in the drilling process, and the strength of the drill bit is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of machining tool technology, and in particular to a high-strength drill bit. Background Technology

[0002] A drill bit is a cutting tool used to drill through holes or blind holes in solid materials, and to enlarge existing holes. Commonly used drill bits include twist drills, flat drills, center drills, deep hole drills, and casing drills.

[0003] Some drill bits, especially the head which performs the initial cutting and drilling, are prone to wear. Some drill bits made of simpler materials have lower strength, which can easily cause overall deformation of the drill bit during drilling, resulting in drill bit damage and workpiece damage. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-strength drill bit.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-strength drill bit includes a shank, a cutting part is fixedly connected to the bottom surface of the shank, the cutting part includes a cutting head at the bottom, a filling cavity is formed in the body of the cutting part, and spiral chip removal grooves are symmetrically formed on the outer wall of the cutting part.

[0007] The outer wall of the cutting head column is symmetrically provided with mounting grooves, and the cutting blades are installed in the mounting grooves. The cutting blades are fixed by fixing components.

[0008] Furthermore, in a preferred configuration, the cutting blade is made of a diamond material, including but not limited to.

[0009] In addition, a preferred structure is that mounting holes are symmetrically opened on one side surface of the cutting blade, the fixing component is installed in the mounting holes, and the side of the cutting blade that is raised and has an inclined angle is set as the cutting edge.

[0010] In addition, a preferred structure is that bolt holes are symmetrically provided at the mounting groove, and the fixing component can be screwed into the bolt holes, with the mounting holes and bolt holes aligned at their centers.

[0011] Furthermore, a preferred structure is that a cutting side edge is provided on the outer surface of the cutting part column and located on the side of the chip removal groove.

[0012] Furthermore, a preferred structure is that the handle is hexagonal in shape.

[0013] The beneficial effects of this utility model are as follows: by opening an installation groove at the cutting head, and fixing a cutting blade that is easy to disassemble and replace at the installation groove by a fixing component, the cutting blade can be replaced when it wears out, without replacing the drill bit. Moreover, by filling the injection cavity with liquid titanium, including but not limited to, the overall cylindrical strength of the drill bit cutting part is increased, and it will not easily twist during drilling, thus effectively improving the strength of the drill bit. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the drill bit;

[0015] Figure 2 This is a schematic diagram of the cutting head structure;

[0016] Figure 3 This is a top view of the cutting head;

[0017] Figure 4 This is a schematic diagram of the cutting blade structure;

[0018] Figure 5 This is a schematic diagram of the cutting part.

[0019] In the figure: 001 shank, 002 cutting part, 0021 chip removal groove, 0022 cutting side edge, 0023 filling cavity, 1 cutting head, 11 mounting groove, 12 bolt hole, 2 cutting insert, 21 mounting hole, 22 cutting edge, 3 fixing component. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-5 A high-strength drill bit includes a shank 001, a cutting part 002 fixedly connected to the bottom surface of the shank 001, the cutting part 002 includes a cutting head 1 at the bottom, a filling cavity 0023 is opened in the body of the cutting part 002, and spiral chip removal grooves 0021 are symmetrically opened on the outer wall of the cutting part 002.

[0022] The outer wall of the cutting head 1 has symmetrical mounting grooves 11, and the cutting blades 2 are installed in the mounting grooves 11. The cutting blades 2 are fixed by the fixing components 3.

[0023] The cutting insert 2 is made of a diamond material, including but not limited to diamond, which makes the cutting insert 2 more wear-resistant.

[0024] Furthermore, mounting holes 21 are symmetrically provided on one side surface of the cutting blade 2, and the fixing component 3 is installed in the mounting holes 21. The side of the cutting blade 2 that is raised and has an inclined angle is set as the cutting edge 22, which can perform the cutting function.

[0025] Among them, bolt holes 12 are symmetrically opened at the mounting groove 11, and the fixing component 3 can be screwed into the bolt holes 12. The mounting hole 21 is aligned with the center of the bolt hole 12, and the bolt hole 12 is used to screw the fixing component 3 in.

[0026] Furthermore, a cutting side edge 0022 is provided on the outer surface of the cutting part 002 column and on the side of the chip removal groove 0021. The cutting side edge 0022 plays an auxiliary cutting role.

[0027] In addition, the handle 001 is hexagonal in shape, and it clamps more tightly than the traditional cylindrical type, preventing it from shifting.

[0028] In this embodiment, when clamping the drill bit, the shank 001 is used for clamping. The shank 001 prevents the drill bit from easily shifting or rotating when it is clamped. When the cutting head 1 drills downwards, the cutting blade 2 can work together with the bottom of the drill bit to drill. Compared with traditional drill bits, when the cutting blade 2 wears out, it can be replaced by unscrewing the fixing part 3 at the mounting hole 21 and then replacing it with a new cutting blade 2.

[0029] When manufacturing the drill bit, a filling cavity 0023 is opened on the column of the cutting part 002, and then liquid titanium, including but not limited to, is poured into the filling cavity 0023, thereby making the overall column of the drill bit cutting part 002 stronger and preventing it from easily twisting during drilling.

[0030] In this invention, by opening an installation groove 11 at the cutting head 1, and fixing a cutting blade 2 that is easy to disassemble and replace at the installation groove 11 by a fixing component 3, the cutting blade 2 can be replaced when it wears out, without replacing the drill bit. Moreover, by filling the injection cavity 0023 with liquid titanium, including but not limited to liquid titanium, the overall cylindrical strength of the drill bit cutting part 002 is increased, and it will not easily twist during drilling, thus effectively improving the strength of the drill bit.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-strength drill bit, comprising a shank (001), wherein a cutting portion (002) is fixedly connected to the bottom surface of the shank (001), characterized in that, The cutting part (002) includes a cutting head (1) at the bottom, an injection cavity (0023) is provided in the cylinder of the cutting part (002), and spiral chip removal grooves (0021) are symmetrically provided on the outer wall of the cylinder of the cutting part (002). The cutting head (1) has symmetrically provided mounting grooves (11) on the outer wall of the column. The cutting blade (2) is installed in the mounting groove (11) and is fixed by the fixing component (3).

2. The high-strength drill bit according to claim 1, characterized in that, The cutting blade (2) is made of a diamond material, including but not limited to.

3. A high-strength drill bit according to claim 2, characterized in that, The cutting blade (2) has symmetrical mounting holes (21) on one side surface. The fixing component (3) is installed in the mounting hole (21). The side of the cutting blade (2) that is raised and has an inclined angle is set as the cutting edge (22).

4. A high-strength drill bit according to claim 1, characterized in that, Bolt holes (12) are symmetrically provided at the mounting groove (11). The fixing component (3) can be screwed into the bolt holes (12). The mounting hole (21) is aligned with the center of the bolt hole (12).

5. A high-strength drill bit according to claim 1, characterized in that, The cutting part (002) has a cutting side edge (0022) on the outer surface of the column and located on the side of the chip removal groove (0021).

6. A high-strength drill bit according to claim 1, characterized in that, The handle (001) is hexagonal in shape.

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