CN215698252U

CN215698252U - High wear-resistant heat-insulation alloy twist drill bit

Info

Publication number: CN215698252U
Application number: CN202121903238.7U
Authority: CN
Inventors: 毕海峰; 葛峰
Original assignee: Changzhou Zhongchuang Tool Co ltd
Current assignee: Changzhou Zhongchuang Tool Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2022-02-01
Anticipated expiration: 2031-08-13

Abstract

The utility model discloses a high-wear-resistance heat-insulation alloy twist drill bit which comprises a twist drill body and a drill handle, wherein the drill handle is arranged at the bottom of the twist drill body, a base is arranged at the bottom end of the drill handle, an installation groove is formed in the top end of the base, the drill handle is inserted into the installation groove, concave grains are formed in the periphery of the bottom of the base, double drill blade zones are arranged at the top of the drill handle, and spiral grooves are formed in the double drill blade zones. This high wear-resisting thermal-insulated formula alloy fluted bit is through being provided with the spiral slot, double-drill land and fluted drill body, the piece that produces when the spiral slot of high accuracy can make drilling is discharged fast away from the slot, the chip removal is more stable smooth and easy, the design of double-drill land and 35 rotation angles, it is more wear-resisting to make the fluted drill body, reduce frequent tool changing number of times, it is accurate to drill, product quality can obtain permanent assurance, reduce the part maintenance cost of rig batch production processing simultaneously, the not good problem of wear resistance has been solved.

Description

High wear-resistant heat-insulation alloy twist drill bit

Technical Field

The utility model relates to the technical field of intelligent manufacturing, in particular to a high-wear-resistance heat-insulation alloy twist drill bit.

Background

With the development of big data and intelligent manufacturing technology, intelligent robots have gradually gained preliminary application in each field of production and life, and the manufacturing of intelligent robots is not separated from basic machine manufacturing and processing technology, and machine tool drill bits used by numerical control machines such as various engravers, lathes, finishing impression machines and the like are essential workpieces for drilling and cutting mechanical parts.

Machine tool bits currently on the market can be classified into cemented carbide and high-speed steel bits according to the material, wherein a cemented carbide twist drill is one of the most common types of bits for drilling a workpiece by rotary cutting, and generally has a single-edge, double-edge or triple-edge specification. If the twist drill is not high in strength and poor in wear resistance, the chip removal effect of the spiral grooves during cutting is limited, the surface of a workpiece is scratched and damaged, burrs and the like, the precision of a machined part is affected, during machining, the drill bit is easy to deform due to high-temperature transmission, the service life of the drill bit is affected, and the machining efficiency is affected. How to give consideration to the rigidity and the edge degree of the twist drill and improve the cutting rate is a common problem in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-wear-resistance heat-insulation alloy twist drill to solve the problems of low strength and poor wear resistance in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high wear-resisting thermal-insulated formula alloy twist drill bit, includes twist drill body and drill handle, the bottom of twist drill body is provided with the drill handle, the bottom of drill handle is provided with the base, the inside on base top is provided with the mounting groove, the drill handle is pegged graft in the inside of mounting groove, be provided with the dimpled grain around the base bottom, the top of drill handle is provided with the double-drill cutting edge, the inside formation spiral slot in double-drill cutting edge, the top of twist drill body is provided with the drill point, the surface coating of twist drill body has multistage nanometer heat-resistant coating.

Preferably, the drill handle is a cylinder, and the bottom end of the drill handle is subjected to chamfering treatment.

Preferably, the double-drill-edge zone extends in a spiral rotation, and the rotation angle of the double-drill-edge zone is 35 °.

Preferably, the diameter of the drill handle is larger than the width of the double-cutting-edge belt, and the handle core of the drill handle is coincided with the vertical central line of the twist drill body.

Preferably, the twist drill body is made of hard alloy, and the outer surface of the twist drill body is subjected to full-grinding processing and rust prevention treatment.

Preferably, the twist drill body is of an inner cooling type, and the vertex angle of the drill tip is 140 degrees.

Compared with the prior art, the utility model has the beneficial effects that: the high-wear-resistance heat-insulation alloy twist drill bit not only realizes high strength, sharpness and bending resistance, good wear resistance and quick chip removal, but also realizes good heat-insulation performance and high cutting rate;

(1) the drill bit is provided with the twist drill body, the drill tip, the drill handle, the base and the mounting groove, the drill tip of the twist drill body is designed at a standard apex angle of 140 degrees, the strength and the sharpness of the whole drill bit are both considered, the drill tip is not easy to break or fracture, meanwhile, the large core diameter is adopted, the integral rigidity of the twist drill body is enhanced, the drilling process is more stable, burrs generated to a product during processing are reduced, the bottom of the twist drill body is a cylindrical drill handle, the drill handle is mounted in the mounting groove of the base and is suitable for batch delivery, the base is provided with concave grains so as to be convenient to take and package, the base can be quickly detached during mounting, the bottom end of the drill handle is subjected to chamfering treatment and is more convenient to clamp in a drill, the drill handle does not slip after mounting, the handle core of the drill handle is coincided with the vertical central line of the twist drill body, the whole drill bit is high in hardness and strong in bending resistance;

(2) through the arrangement of the spiral groove, the double-drill-edge belt and the twist drill body, chips generated during drilling can be quickly discharged from the groove by the high-precision spiral groove, chips can be more stably and smoothly discharged, the surface is clean and tidy and is not stained with burrs, and meanwhile, the auxiliary cooling and heat dissipation effects are achieved;

(3) through being provided with the fluted drill body, multistage nanometer heat-resisting coating and drillstock, the fluted drill body adopts the carbide material, the surface is through grinding processing anti-rust treatment entirely, and coat multistage nanometer heat-resisting coating, compare single coating, thermal-insulated effect obviously promotes, difficult too scald because of high temperature and make aircraft nose clamping portion and drillstock warp man-hour, under the high temperature applied state, can effectively improve the life-span of cutter, effectively prevent the formation of long-pending bits tumour, whole rust-resistant corrosion resistance is better, compare ordinary drill, cutting rate can improve three to five times.

Drawings

FIG. 1 is a schematic front view of the present invention;

fig. 2 is a schematic front view of a twist drill body according to the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic diagram of a side view of the spiral groove of the present invention.

In the figure: 1. a twist drill body; 2. double-drilling a cutting edge zone; 3. a drill shank; 4. mounting grooves; 5. a base; 6. concave lines; 7. a multi-stage nano heat-resistant coating; 8. a spiral groove; 9. and (4) drilling a tip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: referring to fig. 1-4, a high wear-resistant heat-insulating alloy twist drill bit comprises a twist drill body 1 and a drill handle 3, wherein the drill handle 3 is arranged at the bottom of the twist drill body 1, a base 5 is arranged at the bottom end of the drill handle 3, an installation groove 4 is arranged inside the top end of the base 5, the drill handle 3 is inserted into the installation groove 4, concave grains 6 are arranged around the bottom of the base 5, a double-drill-edge belt 2 is arranged at the top of the drill handle 3, a spiral groove 8 is formed inside the double-drill-edge belt 2, a drill point 9 is arranged at the top end of the twist drill body 1, and a multistage nano heat-resistant coating 7 is coated on the outer surface of the twist drill body 1;

the drill handle 3 is a cylinder, the bottom end of the drill handle 3 is subjected to chamfering treatment, the diameter of the drill handle 3 is larger than the width of the double-drill-edge zone 2, the handle core of the drill handle 3 is superposed with the vertical center line of the twist drill body 1, the twist drill body 1 is internally cooled, and the apex angle of a drill point 9 is 140 degrees;

specifically, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the drill point 9 of the twist drill body 1 adopts a 140-degree standard apex angle design, the strength and sharpness of the whole drill are considered, the drill point 9 is not easy to break or fracture, meanwhile, a large core diameter is adopted, the whole rigidity of the twist drill body 1 is enhanced, the drilling process is more stable, burrs generated to a product during processing are reduced, the bottom of the twist drill body 1 is a cylindrical drill handle 3, the drill handle 3 is installed in the installation groove 4 of the base 5 and is suitable for batch delivery, the base 5 is provided with the concave grains 6 for taking and packaging, the base 5 can be quickly detached during installation, the bottom end of the drill handle 3 is subjected to chamfering treatment, the clamping is more convenient to the inside of the drilling machine, the installation is not easy to slip, the handle core of the drill handle 3 coincides with the vertical center line of the twist drill body 1, and the whole drill has high hardness and strong bending resistance.

Example 2: the double-drill cutting edge 2 is spirally and rotatably extended, and the rotation angle of the double-drill cutting edge 2 is 35 degrees;

specifically, as shown in fig. 1, fig. 2 and fig. 4, the piece that produces when the spiral slot 8 of high accuracy can make drilling is discharged from spiral slot 8 fast, the chip removal is more stable smooth and easy, the clean neat burr that is not stained with in surface, play supplementary cooling radiating action simultaneously, the design of double-drill margin 2 and 35 rotation angles, it is more wear-resisting to make fluted drill body 1, reduce frequent tool changing number of times, it is accurate to drill, product quality can obtain long-term assurance, reduce the part maintenance cost of rig batch production processing simultaneously.

Example 3: the twist drill body 1 is made of hard alloy materials, and the outer surface of the twist drill body 1 is subjected to full-grinding processing and rust prevention treatment;

specifically, as shown in fig. 1, 2 and 4, the twist drill body 1 is made of hard alloy, the surface of the twist drill body is subjected to full-grinding processing and rust prevention treatment, and is coated with the multistage nano heat-resistant coating 7, compared with a single coating, the heat insulation effect is obviously improved, the head clamping part and the drill handle 3 are not easy to deform due to high-temperature excessive ironing during processing, the service life of a cutter can be effectively prolonged under a high-temperature application state, the formation of accumulated chips is effectively prevented, the overall rust-resistant and corrosion-resistant performance is better, and compared with a common drill, the cutting rate can be improved by three to five times.

The working principle is as follows: the alloy twist drill bit has the advantages that the drill handle 3 is inserted into a clamping part in a machine tool for use, when the alloy twist drill bit leaves a factory, the cylindrical drill handle 3 is arranged at the bottom of the twist drill bit body 1, the drill handle 3 is installed in the installation groove 4 of the base 5, the base 5 is provided with the concave grains 6 which are convenient to take and package, the base 5 can be quickly detached to install the drill bit on the machine tool during installation, the bottom end of the drill handle 3 is subjected to chamfering treatment, the clamping in the drill bit is more convenient, the drill bit does not slip after installation, the extending length of the drill handle 3 of the drill bit is adjusted according to the drilling depth of a product to be processed, before the alloy twist drill bit is used, the tool swinging precision needs to be corrected, the rotating speed is set, when the product is drilled, the rotating speed is increased after the twist drill bit body 1 is subjected to high-speed and stable rotation, the drill point 9 of the alloy twist drill bit body 1 is designed by adopting a standard apex angle of 140 degrees, the overall strength and sharpness of the drill bit are considered, the drill point 9 is not easy to break or break, and simultaneously adopts a large core diameter, the integral rigidity of the twist drill body 1 is enhanced, the drilling process is more stable, burrs generated on a product during processing are reduced, the handle core of the drill handle 3 coincides with the vertical center line of the twist drill body 1, the drill bit is high in integral hardness and strong in bending resistance, chips generated during drilling can be quickly discharged from the spiral groove 8 by the high-precision spiral groove 8, the chips can be more stably and smoothly discharged, the surface is clean and neat and is not stained with the burrs, the auxiliary cooling and heat dissipation effects are achieved, the twist drill body 1 is more wear-resistant due to the design of the double-drill-edge belt 2 and the 35-degree rotation angle, frequent tool changing times are reduced, the drilling is accurate, the product quality can be ensured for a long time, the maintenance cost of parts during batch production and processing of the drilling machine is reduced, the twist drill body 1 is made of hard alloy, the surface is subjected to full-grinding processing rust-proof treatment, and is coated with the multistage nano heat-resistant coating 7, compared with a single coating, the heat insulation effect is obviously improved, the machine head clamping part and the drill handle 3 are not easy to deform due to high-temperature excessive ironing during machining, the service life of a cutter can be effectively prolonged under a high-temperature application state, the formation of accumulated filings is effectively prevented, the overall antirust and corrosion-resistant performance is better, compared with a common drill bit, the cutting speed can be improved by three to five times, and the whole machining process of cutting and drilling needs to be matched with cutting fluid with insoluble water for auxiliary cooling.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a high wear-resisting thermal-insulated formula alloy twist drill, includes twist drill body (1) and drillstock (3), its characterized in that: the bottom of the twist drill body (1) is provided with a drill handle (3), the bottom of the drill handle (3) is provided with a base (5), the inside on the top of the base (5) is provided with a mounting groove (4), the drill handle (3) is inserted into the mounting groove (4), the periphery of the bottom of the base (5) is provided with concave grains (6), the top of the drill handle (3) is provided with a double-drill-edge belt (2), the inside of the double-drill-edge belt (2) forms a spiral groove (8), the top of the twist drill body (1) is provided with a drill point (9), and the outer surface of the twist drill body (1) is coated with a multistage nano heat-resistant coating (7).

2. The twist drill of claim 1, wherein the alloy has a high wear resistance and thermal insulation property, and further comprises: the drill handle (3) is a cylinder, and the bottom end of the drill handle (3) is subjected to chamfering treatment.

3. The twist drill of claim 1, wherein the alloy has a high wear resistance and thermal insulation property, and further comprises: the double-drill-edge zone (2) is spirally and rotationally extended, and the rotation angle of the double-drill-edge zone (2) is 35 degrees.

4. The twist drill of claim 1, wherein the alloy has a high wear resistance and thermal insulation property, and further comprises: the diameter of the drill handle (3) is larger than the width of the double-drill-edge zone (2), and the handle core of the drill handle (3) is coincided with the vertical center line of the twist drill body (1).

5. The twist drill of claim 1, wherein the alloy has a high wear resistance and thermal insulation property, and further comprises: the twist drill body (1) is made of hard alloy materials, and the outer surface of the twist drill body (1) is subjected to full-grinding processing and rust-proof treatment.

6. The twist drill of claim 1, wherein the alloy has a high wear resistance and thermal insulation property, and further comprises: the twist drill body (1) is internally cooled, and the vertex angle of the drill point (9) is 140 degrees.