CN222199014U

CN222199014U - Higher drill bit alloy drill bit of cutting accuracy

Info

Publication number: CN222199014U
Application number: CN202421019524.0U
Authority: CN
Inventors: 李纪
Original assignee: OSG Shanghai Precision Tools Co Ltd
Current assignee: OSG Shanghai Precision Tools Co Ltd
Priority date: 2024-05-11
Filing date: 2024-05-11
Publication date: 2024-12-20
Anticipated expiration: 2034-05-11

Abstract

The utility model relates to the technical field of drill bits, and discloses a drill bit alloy drill bit with higher cutting accuracy, which comprises a drill handle, the drill stem is characterized in that the upper end of the drill stem is provided with a water inlet hole, the lower end of the drill stem is provided with a drill rod, and the outer side of the drill rod is provided with a chip groove. This bit alloy drill bit that cutting accuracy is higher has set up the blade, can help the heat that produces among the even dispersion cutting process, help reducing the temperature of cutter, reduce thermal deformation and cutter loss, the life of extension cutter, the quantity of blade is more, the stability of drill bit when cutting has been strengthened, reduce the risk that the cutter is broken and the drilling is squinted, transversely arranged's blade can cut apart the smear metal more effectively, help the smear metal to discharge drilling smoothly, reduce the jam and the piling up of smear metal to the drilling, keep the cutting unobstructed, the bottom edge is provided with two kinds of cutting edges, the blade width of wide edge is great, the blade of narrow edge is narrower relatively, be applicable to the cutting of multiple material, the functional is strong, stability is good, application scope is wide.

Description

Higher drill bit alloy drill bit of cutting accuracy

Technical Field

The utility model relates to the technical field of drill bits, in particular to a drill bit alloy drill bit with higher cutting accuracy.

Background

A drill is a tool for performing hole processing on various materials, and is commonly used in the fields of metal processing, woodworking, stone processing, concrete processing, and the like, and is generally composed of a cutting portion and a connecting portion. The cutting portion includes a blade portion and a nose portion for cutting a workpiece, and the connecting portion is for connecting to a machine tool such as a drill press, a hand drill, or the like.

The Chinese patent publication No. CN 210359429U discloses a drill bit convenient for chip removal, which is characterized in that the drill shank is cut along the surface of the drill shank towards the direction of the drill body, so that the length of the drill body is shortened, the bottom of a chip removing groove is directly communicated with the surface of the drill shank, and during deep hole operation, chips are discharged out of deep holes along the direction of the drill shank of the chip removing groove under the centrifugal action of high-speed rotation of the drill bit, so that the chips are prevented from being blocked in the chip removing groove, the abrasion of the chips to the drill bit is reduced, but the drill bit convenient for chip removal is usually discharged in a spiral shape, and the chips are easy to entangle the drill bit, so that the smoothness of drilling of the drill bit is affected.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a drill bit alloy drill bit with higher cutting accuracy, which can effectively solve the problem in the prior art.

The technical scheme includes that the alloy drill bit with the high cutting accuracy comprises a drill shank, a water inlet is formed in the upper end of the drill shank, a drill rod is arranged at the lower end of the drill shank, a chip groove is formed in the outer side of the drill rod, a blade is arranged in the chip groove, a milling side edge is arranged on the outer side of the drill rod, and a bottom edge is arranged at the lower end of the drill rod.

Preferably, the outer edges of the blades are in an arc-shaped structure, and a plurality of the blades are uniformly arranged on the central line of the chip groove surface.

Through above-mentioned technical scheme, set up the blade, can help the heat that produces in the even dispersion cutting process, help reducing the temperature of cutter, reduce thermal deformation and cutter loss, the life of extension cutter, the quantity of blade is more, has strengthened the stability of drill bit when cutting, reduces the risk that the cutter is broken and the skew of drilling, and the cutting chip can be cut apart more effectively to transversely arranged's blade, helps the cutting chip to discharge drilling smoothly, reduces the jam and the piling up of cutting to the drilling, keeps cutting unobstructed.

Preferably, the milling side edge comprises an edge middle part, a side edge first and a side edge second, the side edge first is arranged at the middle upper part of the edge, and the side edge second is arranged at the middle lower part of the edge.

Through the technical scheme, the milling side edge is arranged and matched with the bottom edge to carry out cutting and drilling operation.

Preferably, the bottom edge comprises cutting edges, chip flutes, wide edges, narrow edges and water outlets, two cutting edges are arranged, the chip flutes are arranged between the two cutting edges, one side of each cutting edge is provided with the wide edge, the other side of each cutting edge is provided with the narrow edge, and the water outlets are formed in the bottoms of the cutting edges.

Through above-mentioned technical scheme, set up the bottom sword, be provided with two kinds of blade, be applicable to the cutting of multiple material, the functionality is strong.

Preferably, the wide blade is connected with the first side blade, the narrow blade is connected with the second side blade, and the cutting edge width of the wide blade is larger than that of the narrow blade.

Through above-mentioned technical scheme, the blade width of wide sword is great, and big edging can improve cutting efficiency, reduces cutter jam and the accumulation of cutting heat, is applicable to the material that cutting hardness is lower relatively, and the blade of narrow sword is narrower relatively, is applicable to the cutting hard material, and little edging can provide more accurate cutting, reduces cutting force, helps reducing burr and improves the processing surface quality.

Preferably, the surface of the wide blade and the side blade is coated with a titanium aluminum nitrogen coating, and the surface of the narrow blade and the side blade is coated with a tungsten carbide coating.

According to the technical scheme, the titanium aluminum nitrogen coating is coated on the surfaces of the wide blade and the side blade, the coating has good wear resistance and good stability, the tungsten carbide coating is coated on the surfaces of the narrow blade and the side blade, and the tungsten carbide coating has extremely high hardness, wear resistance and thermal stability and is suitable for processing high-hardness and wear-resistant materials.

Preferably, the chip flute is communicated with the chip groove, and the water outlet hole is communicated with the water inlet hole.

Through above-mentioned technical scheme, apopore and inlet opening intercommunication each other, pour into the coolant liquid through the inlet opening, discharge from the apopore, for the bottom edge cooling.

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

1. The alloy drill bit with higher cutting accuracy is provided with the blades, so that the alloy drill bit can help to uniformly disperse heat generated in the cutting process, is beneficial to reducing the temperature of a cutter, thermal deformation and cutter loss, prolonging the service life of the cutter, has a large number of blades, enhances the stability of the drill bit in cutting, reduces the risks of cutter fracture and drilling deviation, can effectively divide chips by the transversely arranged blades, helps to smoothly discharge the chips out of a drilling hole, reduces the blockage and accumulation of the chips to the drilling hole, and keeps cutting smooth;

2. This bit alloy drill bit that cutting accuracy is higher, the blade width of wide sword is great, big edging can improve cutting efficiency, reduce cutter jam and the accumulation of cutting heat, be applicable to the material that cutting hardness is lower relatively, the blade of narrow sword is narrower relatively, be applicable to the cutting hard material, little edging can provide more accurate cutting, reduce cutting force, help reducing burr and improve processing surface quality, wide sword and side sword one surface coating titanium aluminium nitrogen coating, the good wearability has of coating, stability is good, narrow sword and side sword two surface coating tungsten carbide coating have high hardness, wearability and thermal stability, be applicable to processing high hardness and wearability material, the bottom sword is provided with two kinds of blade, be applicable to the cutting of multiple material, the functionality is strong, stability is good, application scope is wide.

Drawings

FIG. 1 is a schematic perspective view of the first embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second perspective structure of the present utility model;

FIG. 3 is a schematic elevational view of the present utility model;

FIG. 4 is an enlarged schematic view of the first embodiment of the present utility model;

fig. 5 is a schematic diagram of an enlarged structure of the present utility model.

The drill comprises a drill handle, a water inlet hole, a drill rod, a chip removing groove, a cutter, a milling side edge, a cutter 601, a cutter 602, a side edge 603, a side edge II, a bottom edge, a cutter 701, a cutting edge 702, a chip groove 703, a wide edge 704, a narrow edge 705 and a water outlet hole, wherein the drill handle is provided with the water inlet hole, the drill hole is provided with the water inlet hole, the drill rod is provided with the chip removing groove, the chip removing groove is provided with the chip removing groove, the cutter 5 and the cutter 6.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

1-5, The alloy drill bit with high cutting accuracy comprises a drill shank 1, wherein a water inlet hole 2 is formed in 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 formed in the outer side of the drill rod 3, a blade 5 is arranged in 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.

Specifically, the outer edges of the blades 5 are arc-shaped, and a plurality of the blades 5 are uniformly arranged on the central line of the surface of the chip groove 4. The advantage is, has set up blade 5, can help evenly dispersing the heat that produces in the cutting process, helps reducing the temperature of cutter, reduces thermal deformation and cutter loss, prolongs the life of cutter, and blade 5's quantity is more, has strengthened the stability of drill bit when cutting, reduces the risk that the cutter breaks and drifts with the drilling, and the cutting chip can be cut apart more effectively to transversely arranged blade 5, helps the cutting chip to discharge the drilling smoothly, reduces the jam and the piling up of cutting to the drilling, keeps cutting unobstructed.

Specifically, the milling side blade 6 includes a middle blade 601, a side blade 602 and a side blade 603, the side blade 602 is disposed at the upper portion of the middle blade 601, and the side blade 603 is disposed at the lower portion of the middle blade 601. The milling side blade 6 is arranged and matched with the bottom blade 7 to carry out cutting and drilling operations.

Specifically, the bottom edge 7 includes two cutting edges 701, chip flutes 702, wide edges 703, narrow edges 704 and water outlet holes 705, the cutting edges 701 are provided with the chip flutes 702 between the two cutting edges 701, one side of the cutting edges 701 is provided with the wide edges 703, the other side of the cutting edges 701 is provided with the narrow edges 704, and the bottom of the cutting edges 701 is provided with the water outlet holes 705. The advantage is, has set up end sword 7, is provided with two kinds of blade, is applicable to the cutting of multiple material, and is functional strong.

Embodiment two as shown in fig. 2-5, as a modification of the previous embodiment.

Specifically, the wide blade 703 is connected to the first side blade 602, the narrow blade 704 is connected to the second side blade 603, and the width of the wide blade 703 is larger than that of the narrow blade 704. The advantage is that the blade width of wide edge 703 is great, and big edging can improve cutting efficiency, reduces cutter jam and the accumulation of cutting heat, is applicable to the material that cutting hardness is lower relatively, and the blade of narrow edge 704 is narrower relatively, is applicable to the cutting hard material, and little edging can provide more accurate cutting, reduces cutting force, helps reducing burr and improves the processing surface quality.

Specifically, the surfaces of the wide blade 703 and the side blade one 602 are coated with titanium aluminum nitrogen coating, and the surfaces of the narrow blade 704 and the side blade two 603 are coated with tungsten carbide coating. The high-hardness high-wear-resistance tungsten carbide coating has the advantages that the surfaces of the wide blade 703 and the side blade I602 are coated with the titanium aluminum nitrogen coating, the coating has good wear resistance and good stability, and the surfaces of the narrow blade 704 and the side blade II 603 are coated with the tungsten carbide coating, so that the high-hardness high-wear-resistance tungsten carbide coating has extremely high hardness, wear resistance and thermal stability, and is suitable for processing high-hardness high-wear-resistance materials.

Specifically, the chip flute 702 is communicated with the chip groove 4, and the water outlet hole 705 is communicated with the water inlet hole 2. The advantage is that apopore 705 communicates with inlet opening 2 each other, injects the coolant through inlet opening 2, discharges from apopore 705, cools off for bottom edge 7.

The working principle is that when the cutter is used, the bottom edge 7 is provided with two cutting edges, the width of the cutting edge of the wide edge 703 is larger, the large cutting edge can improve cutting efficiency and reduce the accumulation of cutter blockage and cutting heat, the cutter is suitable for cutting materials with relatively low hardness, the cutting edge of the narrow edge 704 is relatively narrow and suitable for cutting hard materials, the small cutting edge can provide more accurate cutting, cutting force is reduced, burrs are reduced and machining surface quality is improved, the surfaces of the wide edge 703 and the side edge 602 are coated with titanium aluminum nitrogen coating, the coating has good wear resistance, the stability is good, the surfaces of the narrow edge 704 and the side edge 603 are coated with tungsten carbide coating, the cutter has extremely high hardness, wear resistance and thermal stability, the cutter is suitable for machining high hardness and wear resistance materials, the cutter is suitable for cutting of various materials, the cutter is strong in functionality, the stability is good, the application range is wide, the cutter blades 5 can help to uniformly disperse the heat generated in the cutting process, the temperature of the cutter is reduced, the loss of the cutter is reduced, the service life of the cutter is prolonged, the number of the cutter blades 5 is increased, the stability of the cutter in cutting is improved, the cutter is reduced, the fracture and the deflection of the cutter is reduced, the cutter is smoothly arranged, the cutter blades can cut and the cutting blades can be smoothly cut and cut smoothly, the cutting cuttings are smoothly and the cut and the risk is smoothly is stacked on the drill hole is cut.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

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

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

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

4. A drill alloy drill with high cutting accuracy according to claim 1, characterized in that: 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), and 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. A 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 cutting edge width of the wide blade (703) is greater than the cutting edge width of the narrow blade (704).

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

7. A drill alloy drill with high cutting accuracy according to claim 6, characterized in that: the chip groove (702) and the chip removal groove (4) are interconnected, and the water outlet hole (705) and the water inlet hole (2) are interconnected.