Alloy drill bit with high cutting precision

Abstract

The utility model relates to the technical field of drill bits, and discloses an alloy drill bit with higher cutting accuracy, which comprises a drill handle, a water inlet hole is arranged at the upper end of the drill handle, a drill rod is arranged at the lower end of the drill handle, and a chip groove is arranged on the outer side of the drill rod. According to the alloy drill bit with the high cutting precision, the blades are arranged, heat generated in the cutting process can be helped to be evenly dispersed, the temperature of a cutter can be reduced, thermal deformation and cutter loss are reduced, the service life of the cutter is prolonged, the number of the blades is large, the stability of the drill bit in the cutting process is enhanced, and the service life of the drill bit is prolonged. The transversely-arranged blades can more effectively divide cuttings, help the cuttings to be smoothly discharged out of the drill hole, reduce blockage and accumulation of the cuttings to the drill hole and keep smooth cutting, the bottom cutting edge is provided with two cutting edges, the width of the cutting edge of the wide cutting edge is large, the cutting edge of the narrow cutting edge is relatively narrow, and the cutter is suitable for cutting various materials; functionality is high, stability is good, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bits, in particular to an alloy drill bit with high cutting accuracy. Background Art

[0002] Drill bits are tools used to make holes in various materials. They are commonly used in metal processing, woodworking, stone processing, concrete processing and other fields. Drill bits usually consist of a cutting part and a connecting part. The cutting part includes the blade and the tip, which is used to cut the workpiece, while the connecting part is used to connect to processing equipment such as drilling machines and handheld drills.

[0003] China utility model patent publication number: CN 210359429 U, discloses: a drill bit that is easy to remove chips, wherein the drill bit that is easy to remove chips, the drill shank is cut along the surface of the drill shank toward the drill body, so that the length of the drill body is shortened, and the bottom of the chip groove will be directly connected to the surface of the drill shank. When deep hole operation is performed, under the centrifugal effect of the high-speed rotation of the drill bit, the chips are discharged from the deep hole along the chip groove in the direction of the drill shank, thereby avoiding the chips from being blocked in the chip groove and reducing the wear of the chips on the drill bit. However, the chips discharged by the drill bit that is easy to remove chips are often discharged in a spiral shape, and the chips are easy to entangle the drill bit, thereby affecting the smoothness of the drill bit's drilling. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide an alloy drill bit with higher cutting accuracy, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by the utility model is: a drill alloy drill with high cutting accuracy, comprising a drill shank, a water inlet hole is opened at the upper end of the drill shank, a drill rod is arranged at the lower end of the drill shank, a chip groove is opened on the outer side of the drill rod, a blade is arranged inside the chip groove, a milling side blade is arranged on the outer side of the drill rod, and a bottom blade is arranged at the lower end of the drill rod.

[0006] Preferably, the outer edge of the blade is in an arc-shaped structure, and a plurality of the blades are evenly arranged on the central midline of the chip groove surface.

[0007] Through the above technical solution, blades are set up to help evenly disperse the heat generated during the cutting process, help reduce the temperature of the tool, reduce thermal deformation and tool loss, and extend the service life of the tool. The large number of blades enhances the stability of the drill bit during cutting and reduces the risk of tool breakage and drilling deviation. The transversely arranged blades can more effectively divide the chips, help the chips to be smoothly discharged from the drill hole, reduce the blockage and accumulation of chips on the drill hole, and keep the cutting smooth.

[0008] Preferably, the milling side blade includes a blade center, side blade one and side blade two, the upper portion of the blade center is provided with side blade one, and the lower portion of the blade center is provided with side blade two.

[0009] Through the above technical solution, a milling side blade is provided to cooperate with the bottom blade to perform cutting and drilling operations.

[0010] Preferably, the bottom blade includes a cutting edge, a chip groove, a wide blade, a narrow blade and a water outlet hole. Two cutting edges are provided, a chip groove is provided between the two cutting edges, a wide blade is provided on one side of the cutting edge, and a narrow blade is provided on the other side of the cutting edge. A water outlet hole is provided at the bottom of the cutting edge.

[0011] Through the above technical solution, a bottom blade is provided, and two cutting edges are provided, which is suitable for cutting a variety of materials and has strong functionality.

[0012] Preferably, the wide blade is connected to the side blade one, the narrow blade is connected to the side blade two, and the blade width of the wide blade is greater than the blade width of the narrow blade.

[0013] Through the above technical solution, the wide blade has a larger cutting edge width, and the large cutting edge can improve cutting efficiency, reduce tool blockage and accumulation of cutting heat, and is suitable for cutting materials with relatively low hardness. The narrow blade has a relatively narrow cutting edge and is suitable for cutting hard materials. The small cutting edge can provide more precise cutting, reduce cutting force, help reduce burrs and improve processing surface quality.

[0014] Preferably, the wide blade and the first side blade surface are coated with a titanium aluminum nitrogen coating, and the narrow blade and the second side blade surface are coated with a tungsten carbide coating.

[0015] Through the above technical scheme, the wide blade and the side blade are coated with a titanium aluminum nitrogen coating, which has good wear resistance and good stability. The narrow blade and the side blade are coated with a tungsten carbide coating, which has extremely high hardness, wear resistance and thermal stability and is suitable for processing high hardness and wear-resistant materials.

[0016] Preferably, the chip containing groove and the chip discharging groove are communicated with each other, and the water outlet hole and the water inlet hole are communicated with each other.

[0017] Through the above technical solution, the water outlet hole and the water inlet hole are connected to each other, and the coolant is injected through the water inlet hole and discharged from the water outlet hole to cool the bottom blade.

[0018] Compared with the prior art, the utility model provides a drill alloy drill with higher cutting accuracy, which has the following beneficial effects:

[0019] 1. This drill bit alloy drill bit with high cutting accuracy is equipped with blades, which can help evenly disperse the heat generated during the cutting process, help reduce the temperature of the tool, reduce thermal deformation and tool loss, and extend the service life of the tool. The number of blades is large, which enhances the stability of the drill bit during cutting and reduces the risk of tool breakage and drilling deviation. The horizontally arranged blades can more effectively divide the chips, help the chips to be discharged from the drill hole smoothly, reduce the blockage and accumulation of chips on the drill hole, and keep the cutting smooth;

[0020] 2. This drill alloy drill has high cutting accuracy. The wide blade has a larger cutting edge width. The large cutting edge can improve cutting efficiency, reduce tool blockage and cutting heat accumulation, and is suitable for cutting materials with relatively low hardness. The narrow blade has a relatively narrow cutting edge and is suitable for cutting hard materials. The small cutting edge can provide more precise cutting, reduce cutting force, help reduce burrs and improve machining surface quality. The wide blade and the side blade are coated with titanium aluminum nitrogen coating. The coating has good wear resistance and good stability. The narrow blade and the side blade are coated with tungsten carbide coating. It has extremely high hardness, wear resistance and thermal stability and is suitable for machining high hardness and wear-resistant materials. The bottom blade is provided with two cutting edges, which is suitable for cutting a variety of materials. It has strong functionality, good stability and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the front view structure of the utility model;

[0024] Figure 4 This is an enlarged structural diagram of the utility model Figure 1 ;

[0025] Figure 5 This is an enlarged structural diagram of the utility model Figure 2 .

[0026] Among them: 1. drill shank; 2. water inlet hole; 3. drill rod; 4. chip groove; 5. blade; 6. milling side edge; 601. center of blade; 602. side edge one; 603. side edge two; 7. bottom edge; 701. cutting edge; 702. chip groove; 703. wide edge; 704. narrow edge; 705. water outlet hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1: Figure 1-5 As shown, the utility model provides an alloy drill bit with high cutting accuracy, including a drill shank 1, a water inlet hole 2 is opened at the upper end of the drill shank 1, a drill rod 3 is arranged at the lower end of the drill shank 1, a chip groove 4 is opened on the outer side of the drill rod 3, a blade 5 is arranged inside the chip groove 4, a milling side edge 6 is arranged on the outer side of the drill rod 3, and a bottom edge 7 is arranged at the lower end of the drill rod 3.

[0029] Specifically, the outer edge of the blade 5 is in an arc-shaped structure, and a plurality of blades 5 are evenly arranged on the central midline of the surface of the chip groove 4. The advantages are that the blade 5 can help evenly disperse the heat generated during the cutting process, help reduce the temperature of the tool, reduce thermal deformation and tool loss, and extend the service life of the tool. The large number of blades 5 enhances the stability of the drill bit during cutting, reduces the risk of tool breakage and drilling deviation, and the transversely arranged blades 5 can more effectively divide the chips, help the chips to be smoothly discharged from the drill hole, reduce the blockage and accumulation of chips on the drill hole, and keep the cutting smooth.

[0030] Specifically, the milling side blade 6 includes a blade center 601, a side blade 1 602 and a side blade 2 603. The upper portion of the blade center 601 is provided with a side blade 1 602, and the lower portion of the blade center 601 is provided with a side blade 2 603. The advantage is that the milling side blade 6 is provided to cooperate with the bottom blade 7 to perform cutting and drilling operations.

[0031] Specifically, the bottom blade 7 includes a cutting edge 701, a chip groove 702, a wide blade 703, a narrow blade 704 and a water outlet 705. Two cutting edges 701 are provided, a chip groove 702 is provided between the two cutting edges 701, a wide blade 703 is provided on one side of the cutting edge 701, a narrow blade 704 is provided on the other side of the cutting edge 701, and a water outlet 705 is provided at the bottom of the cutting edge 701. The advantage is that the bottom blade 7 is provided with two cutting edges, which is suitable for cutting a variety of materials and has strong functionality.

[0032] Embodiment 2: Figure 2-5 As shown, as an improvement to the previous embodiment.

[0033] Specifically, the wide blade 703 is connected to the side blade 1 602, the narrow blade 704 is connected to the side blade 2 603, and the edge width of the wide blade 703 is greater than the edge width of the narrow blade 704. The advantages are that the edge width of the wide blade 703 is larger, and the large edge can improve the cutting efficiency, reduce the tool blockage and the accumulation of cutting heat, and is suitable for cutting materials with relatively low hardness, and the edge of the narrow blade 704 is relatively narrow, and is suitable for cutting hard materials, and the small edge can provide more precise cutting, reduce cutting force, and help reduce burrs and improve the quality of the machined surface.

[0034] Specifically, the wide blade 703 and the side blade 1 602 are coated with a titanium aluminum nitrogen coating, and the narrow blade 704 and the side blade 2 603 are coated with a tungsten carbide coating. The advantages are that the wide blade 703 and the side blade 1 602 are coated with a titanium aluminum nitrogen coating, and the coating has good wear resistance and good stability, and the narrow blade 704 and the side blade 2 603 are coated with a tungsten carbide coating, which has extremely high hardness, wear resistance and thermal stability, and is suitable for processing high hardness and wear-resistant materials.

[0035] Specifically, the chip groove 702 is connected to the chip discharge groove 4, and the water outlet hole 705 is connected to the water inlet hole 2. The advantage is that the water outlet hole 705 is connected to the water inlet hole 2, and the coolant is injected through the water inlet hole 2 and discharged from the water outlet hole 705 to cool the bottom edge 7.

[0036] Working principle: When in use, the bottom blade 7 is provided with two cutting edges. The wide blade 703 has a larger cutting edge width. The large cutting edge can improve cutting efficiency, reduce tool blockage and cutting heat accumulation, and is suitable for cutting materials with relatively low hardness. The narrow blade 704 has a relatively narrow cutting edge and is suitable for cutting hard materials. The small cutting edge can provide more precise cutting, reduce cutting force, help reduce burrs and improve machining surface quality. The wide blade 703 and the side blade 602 are coated with a titanium aluminum nitrogen coating. The coating has good wear resistance and good stability. The narrow blade 704 and the side blade 603 are coated with a tungsten carbide coating, which has extremely high hardness. , wear resistance and thermal stability, suitable for processing high hardness and wear-resistant materials, the drill bit is suitable for cutting a variety of materials, with strong functionality, good stability and a wide range of applications. When cutting and drilling, the blade 5 can help to evenly disperse the heat generated in the cutting process, help to reduce the temperature of the tool, reduce thermal deformation and tool loss, and extend the service life of the tool. The number of blades 5 is large, which enhances the stability of the drill bit during cutting and reduces the risk of tool breakage and drilling deviation. The transversely arranged blades 5 can more effectively divide the chips, help the chips to be smoothly discharged from the drill hole, reduce the blockage and accumulation of chips in the drill hole, and keep the cutting smooth.

[0037] 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 drill alloy drill with high cutting accuracy, comprising a drill shank (1), characterized in that: The upper end of the drill shank (1) is provided with a water inlet hole (2), the lower end of the drill shank (1) is provided with a drill rod (3), the outer side of the drill rod (3) is provided with a chip removal groove (4), a blade (5) is provided inside the chip removal groove (4), the outer side of the drill rod (3) is provided with a milling side blade (6), and the lower end of the drill rod (3) is provided with a bottom blade (7).

2. The drill alloy drill with high cutting accuracy according to claim 1, characterized in that: The outer edge of the blade (5) is in an arc-shaped structure, and a plurality of the blades (5) are evenly arranged on the central midline of the surface of the chip removal groove (4).

3. The drill alloy drill with high cutting accuracy according to claim 1, characterized in that: The milling side blade (6) comprises a blade center (601), a side blade one (602) and a side blade two (603). The side blade one (602) is arranged at the upper part of the blade center (601), and the side blade two (603) is arranged at the lower part of the blade center (601).

4. The drill alloy drill with high cutting accuracy according to claim 1, characterized in that: The bottom blade (7) comprises a cutting edge (701), a chip groove (702), a wide blade (703), a narrow blade (704) and a water outlet (705); two cutting edges (701) are provided, a chip groove (702) is provided between the two cutting edges (701); a wide blade (703) is provided on one side of the cutting edge (701), a narrow blade (704) is provided on the other side of the cutting edge (701), and a water outlet (705) is provided at the bottom of the cutting edge (701).

5. The drill alloy drill with high cutting accuracy according to claim 4, characterized in that: The wide blade (703) is connected to the side blade one (602), the narrow blade (704) is connected to the side blade two (603), and the blade width of the wide blade (703) is greater than the blade width of the narrow blade (704).

6. The drill alloy drill with high cutting accuracy according to claim 5, characterized in that: The surfaces of the wide blade (703) and the first side blade (602) are coated with a titanium aluminum nitrogen coating, and the surfaces of the narrow blade (704) and the second side blade (603) are coated with a tungsten carbide coating.

7. The drill alloy drill with high cutting accuracy according to claim 6, characterized in that: The chip containing groove (702) and the chip discharging groove (4) are in communication with each other, and the water outlet hole (705) and the water inlet hole (2) are in communication with each other.

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