CN217192793U

CN217192793U - High-efficient fluted drill with ladder drill point

Info

Publication number: CN217192793U
Application number: CN202123371753.8U
Authority: CN
Inventors: 彭庆华
Original assignee: Jiangsu Borui Tools Co ltd
Current assignee: Jiangsu Borui Tools Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-08-16
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a high-efficient fluted drill with ladder drill point, include: a drill stem; the spiral chip grooves are formed to expose spiral drill edges, and the spiral drill edges are intersected at the front end of the drill rod to form a first cutting surface and a second cutting surface; the step reinforcing parts are respectively arranged on the first cutting surface and the second cutting surface and comprise a first step part, a second step part, a third step part and a fourth step part; v-shaped cutting grooves which are respectively arranged on the first step part and the third step part and are transversely and tightly arranged; and the reinforcing squares are respectively arranged on the surfaces of the second step part and the fourth step part at uniform intervals. The utility model has the advantages that the V-shaped cutting groove is arranged, so that the cutting efficiency is greatly accelerated; by arranging the reinforcing square blocks, the strength of the first cutting surface and the second cutting surface is enhanced, and the drilling speed is increased.

Description

High-efficient fluted drill with ladder drill point

Technical Field

The utility model relates to a drill bit technical field, in particular to high-efficient fluted drill with ladder drill point.

Background

The drill bit is a rotary tool with cutting ability at the head end, is generally made of carbon steel or high-speed steel through milling or rolling or grinding, quenching and tempering heat treatment and then grinding, is used for drilling on metal or other materials, has a wide application range, and can be applied to machine tools such as drilling machines, lathes, milling machines, electric hand drills and the like.

Twist drills are tools for drilling round holes in workpieces by rotary cutting thereof about a fixed axis. At present, when a workpiece is drilled, because the drill point of the twist drill bit is drilled at a high speed, the drill bit is very easy to have the situations of strength reduction, deformation and difficulty in chip removal, so that the use efficiency of the drill bit is reduced, the machining precision is reduced and scrapped, and even safety accidents such as fracture occur.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a high-efficiency twist drill with a stepped drill point, which greatly accelerates the cutting efficiency by arranging a V-shaped cutting groove; by arranging the reinforcing square blocks, the strength of the first cutting surface and the second cutting surface is enhanced, and the drilling speed is increased.

In order to solve the technical problem, the utility model discloses a high-efficient fluted drill with ladder drill point, include: a drill stem; the spiral chip grooves are formed to expose spiral drill edges, and the spiral drill edges are intersected at the front end of the drill rod to form a first cutting surface and a second cutting surface; the step reinforcing parts are respectively arranged on the first cutting surface and the second cutting surface and comprise a first step part, a second step part, a third step part and a fourth step part; v-shaped cutting grooves which are respectively arranged on the first step part and the third step part and are transversely and tightly arranged; and the reinforcing squares are respectively arranged on the surfaces of the second step part and the fourth step part at uniform intervals.

According to an embodiment of the present invention, the first cutting surface, the second cutting surface and the step reinforcement portion are integrally formed.

According to an embodiment of the present invention, the first and second cutting surfaces are symmetrical with respect to a center of the drill tip.

According to an embodiment of the present invention, the spiral drill blade has a cutting edge along one end of the cutting direction.

Compared with the prior art, the application can obtain the following technical effects:

1) the V-shaped cutting groove is arranged, so that the cutting efficiency is greatly accelerated; by arranging the reinforcing square blocks, the strength of the first cutting surface and the second cutting surface is enhanced, and the drilling speed is increased.

Of course, it is not necessary for any product to achieve all of the above technical effects simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic view of a high efficiency twist drill with a stepped drill tip according to an embodiment of the present application.

Fig. 2 is an enlarged view of the first cutting surface of fig. 1 in an embodiment of the present application.

Reference numerals

The drill rod 10, the spiral chip grooves 20, the spiral drill edges 21, the first cutting surfaces 30, the second cutting surfaces 40, the step reinforced parts 50, the first step parts 51, the second step parts 52, the third step parts 53, the fourth step parts 54, the V-shaped cutting grooves 60 and the reinforced square blocks 70.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Referring to fig. 1 and 2, fig. 1 is a schematic view of a high-efficiency twist drill with a stepped drill tip according to an embodiment of the present disclosure. Fig. 2 is an enlarged view of the first cutting surface 30 of fig. 1 in an embodiment of the present application. As shown, a high efficiency twist drill with stepped drill tip includes: a drill rod 10; the drill rod comprises two opposite spiral chip grooves 20 arranged on a drill rod 10, wherein the spiral chip grooves 20 are formed to expose spiral drill edges 21, one ends of the spiral drill edges 21 along the cutting direction are provided with cutting edges, and the spiral drill edges 21 are intersected at the front end of the drill rod 10 to form a first cutting surface 30 and a second cutting surface 40; a step reinforcing portion 50 provided to the first cutting surface 30 and the second cutting surface 40, respectively, the step reinforcing portion 50 including a first step portion 51, a second step portion 52, a third step portion 53, and a fourth step portion 54; v-shaped cutting grooves 60 which are respectively arranged on the first step part 51 and the third step part 53 and are transversely and tightly arranged; and reinforcing blocks 70 which are uniformly spaced on the surfaces of the second step portion 52 and the third step portion 53, respectively.

The embodiment of the utility model provides an in, the utility model discloses an in, set up two relative spiral chip grooves 20 on drilling rod 10, spiral chip groove 20 shaping exposes auger bit 21, and auger bit 21 has the blade along cutting direction one end, and auger bit 21 crosses the shaping at drilling rod 10 front end and goes out first cutting face 30 and second cutting face 40 for drilling. Step reinforcing parts 50 are arranged on the first cutting surface 30 and the second cutting surface 40, each step reinforcing part 50 comprises a first step part 51, a second step part 52, a third step part 53 and a fourth step part 54, V-shaped cutting grooves 60 which are transversely and tightly arranged are arranged on the first step part 51 and the third step part 53, reinforcing blocks 70 which are uniformly spaced are arranged on the surfaces of the second step part 52 and the fourth step part 53, and the cutting efficiency is greatly improved by arranging the V-shaped cutting grooves 60; by providing the reinforcing block 70, the strength of the first cutting surface 30 and the second cutting surface 40 is enhanced, and the drilling speed is increased.

Preferably, the first and

second cutting surfaces

30, 40 are integrally formed with the step reinforcement 50, and the first and

second cutting surfaces

30, 40 are symmetrical about the center of the drill tip.

The foregoing description shows and describes several preferred embodiments of the present application, but as before, it is to be understood that the application is not limited to the forms disclosed herein, and is not to be taken as excluding other embodiments, but rather is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as expressed herein, either by the above teachings or by the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.

Claims

1. The utility model provides a high-efficient twist drill with ladder drill point which characterized in that includes: a drill stem;

the spiral chip grooves are formed to expose spiral drill edges, and the spiral drill edges are intersected at the front end of the drill rod to form a first cutting surface and a second cutting surface;

the step reinforcing parts are respectively arranged on the first cutting surface and the second cutting surface and comprise a first step part, a second step part, a third step part and a fourth step part;

v-shaped cutting grooves which are respectively arranged on the first step part and the third step part and are transversely and tightly arranged;

and the reinforcing squares are respectively arranged on the surfaces of the second step part and the fourth step part at uniform intervals.

2. A high efficiency twist drill with stepped drill tip according to claim 1, wherein the first cutting surface, the second cutting surface and the stepped reinforcement portion are integrally formed.

3. A high efficiency twist drill with stepped tip according to claim 1, wherein the first and second cutting surfaces are symmetrical about the center of the tip portion.

4. A high efficiency twist drill with stepped drill tip according to claim 1, wherein the auger blade has a cutting edge at one end in the cutting direction.