CN209849948U - Drill bit - Google Patents

Abstract

The application discloses a drill bit, drilling machines relate to drilling machines. The drill bit includes: the body and a plurality of fractures. The body is cylindrical, and its one end is the installation end, and the other end is the work end. A plurality of fractures are the spaced setting and are in the work end department of body, each fracture is followed the axial setting of body, in order to incite somebody to action the work end of drill bit is cut apart into a plurality of caking formula tool bits that are the axial and arrange, and each caking formula tool bit department is put an edge on, follows from the top surface in each caking formula tool bit the axis of body or slope are equipped with at least one recess in the axis, and each recess is used for holding cutting, row cuts and the cooling action reduces the contact surface simultaneously, makes the drill bit reduces in the middle of in the front and creeps into arc area, and then makes the pressure value increase who carves into the processing object improve the sharpness, improves and feels. Therefore, the whole-course use sharpness of the drill bit is good, and the drill bit has the advantages of saving time, trouble and labor.

Description

Drill bit

Technical Field

The present application relates to drilling machines, and more particularly, to a drill bit.

Background

The drill bit is a cutting tool used by a typical drill or drilling machine to cut a circular hole. The basic principle of the drill bit is to rotate the edge cutting of the drill bit, cut a workpiece and remove drill cuttings through a drill slot. Commonly used drill bits mainly include twist drills, flat drills, center drills, deep hole drills, and trepanning drills.

At present, the sharpened drill bit is sharp and easy to use when being used at first, and is blunt when being used about 1/6, so that the drilling speed is slowed down, the hand feeling is heavy, the drilling efficiency of the drill bit is low, and the defects of labor and time waste exist. In order to improve the sharpness of the drill bit, some diamond drill bit manufacturers in China adopt a lateral grooving method, but the problem of the sharpness of the middle section of the drill bit in use cannot be solved all the time. The drilling efficiency is changed by the formula performance.

Therefore, there is a need to develop a drill bit that can solve the sharpness problem in use in the industry for many years without changing the formula.

SUMMERY OF THE UTILITY MODEL

It is an object of the present application to overcome the above problems or to at least partially solve or mitigate the above problems.

The application provides a drill bit, includes:

the body is cylindrical, one end of the body is a mounting end, and the other end of the body is a working end; and

a plurality of fractures are the spaced setting and are in the work end department of body, each fracture is followed the axial setting of body, in order to incite somebody to action the work end of drill bit is cut apart into a plurality of caking formula tool bits that are the axial and arrange, and each caking formula tool bit department is put the edge, follows from the top surface in each caking formula tool bit the axis of body or slope are equipped with at least one recess in the axis, and each recess is used for holding cutting, row cuts and cooling action reduce the contact surface simultaneously, makes the drill bit reduces in the middle of in the past and creeps into arc area, and then makes the pressure value increase improvement sharpness of carving into the processing object.

Optionally, the groove is U-shaped.

Optionally, the groove is V-shaped.

Optionally, two spaced grooves are provided in each nubbed cutter head, each groove being U-shaped.

Optionally, at least one hole is formed in the middle of each block type cutter head, each hole is used for reducing the contact surface while the effects of containing, removing and cooling are achieved, so that the drilling arc area of the drill bit is reduced in the middle and later periods, and the pressure value of the drill bit carved into the processing object is increased, and the sharpness is improved.

Optionally, each hole is a circular hole.

Optionally, each hole is a polygonal hole.

Optionally, each aperture is an open aperture or a closed aperture.

Optionally, the middle of each nubbed cutter head is provided with a hole which is an open circular hole.

The utility model provides a drill bit is cut apart into a plurality of caking formula tool bits of arranging along the axial through a plurality of fractures, and the top surface of each caking formula tool bit sets up the recess of in-line or skew row, and the recess can be cut, arrange to cut and the cooling action reduces the contact surface simultaneously, makes the drill bit reduces in the front and creeps into arc area in middle, and then makes the pressure value increase of carving into the processing object improve the sharpness, improves and feels. Therefore, the whole-course use sharpness of the drill bit is good, and the drill bit has the advantages of saving time, trouble and labor.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic block diagram of a drill bit according to one embodiment of the present application;

fig. 2 is a schematic block diagram of the lump-type cutter head shown in fig. 1.

The symbols in the drawings represent the following meanings:

a drill bit of 100 a is provided,

10 a body, 11 a mounting end, 12 a working end,

20 of the fracture surface is broken off,

30 nubbed tips, 31 grooves, 32 holes.

Detailed Description

FIG. 1 is a schematic block diagram of a drill bit according to one embodiment of the present application. Fig. 2 is a schematic block diagram of the lump-type cutter head shown in fig. 1. A drill bit 100 may generally include: a body 10 and a plurality of interruptions 20. The body 10 is cylindrical. One end of the body 10 is a mounting end 11 and the other end is a working end 12. A plurality of fractures 20 are arranged at the working end 12 of the body 10 at intervals, and each fracture 20 is arranged along the axial direction of the body 10 to divide the working end 12 of the drill bit 100 into a plurality of axially arranged nubbed cutters 30. Each segmented cutting head 30 is sharpened. Each of the plurality of segments 30 has at least one groove 31 formed therein along an axis (i.e., in-line) or inclined to the axis (i.e., in oblique arrangement) of the body 10 from a top surface, and each of the grooves 31 serves to reduce a contact surface while performing a capacity cutting, a row cutting, and a cooling function, so that the drilling arc area of the drill 100 is reduced in the forward and middle stages, and the pressure is increased to increase a pressure value at which the single-grain diamond is cut into the object to be machined, thereby improving sharpness.

The utility model provides a drill bit 100 cuts apart into a plurality of caking formula tool bits 30 of arranging along the axial through a plurality of fractures 20, and the top surface of each caking formula tool bit 30 sets up the recess 31 of in-line or skew row, and recess 31 can be cut, arrange to cut and the cooling action reduces the contact surface simultaneously in the appearance, makes drill bit 100 reduces in the front middle period and creeps into the arc area, and then makes the pressure value increase of carving into the processing object and improve the sharpness, improves and feels. Therefore, the drill bit 100 has the advantages of good sharpness in the whole use process, time saving, trouble saving and labor saving.

In addition, this application compares the drill bit 100 cooling chip removal with prior art, does not burn the formula tool bit 30 of caking and does not burn and bore.

Experiments prove that compared with the prior art, the novel combined cutter head has the advantages that the sharpness is improved by 20-40%, the efficiency is improved by 10-25%, and the cost of the block type cutter head is reduced by 15-30% compared with the same formula and the same specification.

It can be seen that the present application is directed to changing the shape of the drill bit 100 to improve sharpness for a given technical formulation. Thereby solving the sharpness problem of the diamond bit 100 in use in the industry for many years. The application has improved a new step that current diamond bit 100 used, is applicable to more conditions to the requirement of drill bit 100, and the multifunctionality that drill bit 100 used has filled the domestic trade blank, and the performance is more excellent when especially drill bit 100 drills into the concrete of taking the reinforcing bar and arranges to cut better, and the product has considerable market potential.

The drill bit 100 of the present application is particularly well suited for use in: diameter 25 mm-500 mm diamond bit.

More specifically, in the present embodiment, the groove 31 is U-shaped.

In other embodiments, the shape of the groove 31 may also be V-shaped.

More specifically, in the present embodiment, two grooves 31 are provided in each nubbed cutter head 30 at intervals, and each groove 31 is U-shaped.

Of course, in other embodiments, the number of the grooves 31 may also be one, three, four, etc., depending on the design requirements.

Further, each nubbed blade 30 is provided with at least one hole 32 in the middle. Each hole 32 is used for reducing the contact surface while the functions of capacity cutting, row cutting and cooling are performed, so that the drilling arc area of the drill bit 100 is reduced in the middle and later periods, the pressure is increased, the pressure value of the single-particle diamond which is carved into a processing object is increased, and the sharpness is improved.

The combination of the groove 31 and the hole 32 improves the sharpness of the whole drilling process of the drill 100, improves the efficiency, and saves time, labor and time.

More specifically, each hole 32 may be a circular hole. Each hole 32 may also be a polygonal hole. Each aperture 32 is an open or closed aperture.

In this embodiment, a hole 32 is formed in the middle of each nubbed cutter head 30, which is an open circular hole.

More specifically, the lateral surface of the lump-type cutter head 30 is provided with a plurality of corrugated teeth.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (9)

1. A drill bit (100), comprising:

the body (10) is cylindrical, one end of the body is a mounting end (11), and the other end of the body is a working end (12); and

a plurality of fractures (20), be the spaced setting and be in the work end department of body, each fracture is followed the axial setting of body, in order with the work end of drill bit is cut apart into a plurality of caking formula tool bits (30) that are the axial and arrange, and each caking formula tool bit department is put the edge, follows from the top surface in each caking formula tool bit the axis of body or be inclined to the axis and be equipped with at least one recess (31).

2. Drill bit according to claim 1, characterized in that the recess (31) is U-shaped.

3. Drill bit according to claim 1, characterized in that the shape of the groove (31) is V-shaped.

4. Drill bit according to claim 1, characterized in that two spaced-apart recesses (31) are provided in each block head (30), each recess being U-shaped.

5. Drill bit according to any of claims 1-4, characterized in that at least one hole (32) is provided in the middle of each block head (30).

6. Drill bit according to claim 5, characterized in that each hole (32) is a circular hole.

7. Drill bit according to claim 5, characterized in that each hole (32) is a polygonal hole.

8. Drill bit according to claim 5, characterized in that each hole (32) is an open hole or a closed hole.

9. Drill bit according to claim 5, characterized in that in the middle of each nubbed tip (30) there is a hole (32) which is an open circular hole.