CN204975454U - Steady type corrugate high accuracy drill bit - Google Patents
Steady type corrugate high accuracy drill bit Download PDFInfo
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- CN204975454U CN204975454U CN201520686216.8U CN201520686216U CN204975454U CN 204975454 U CN204975454 U CN 204975454U CN 201520686216 U CN201520686216 U CN 201520686216U CN 204975454 U CN204975454 U CN 204975454U
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Abstract
The utility model discloses a steady type corrugate high accuracy drill bit, including drillstock and brill body, the drillstock surface is provided with two water injection holes, two water injection holes be connected with two helical coiled passage respectively, helical coiled passage passes the drillstock and bores the body body and is connected with the apopore, the apopore is located the drill tip terminal surface that bores the body body, the row's of being provided with silo on the brill body, the excircle that brill body is located drill tip terminal surface one side is provided with a plurality of slots on the surface, the slot link up row's silo of both sides. The utility model discloses simple structure, no tread degree exists, has increased machining precision and processing stability.
Description
Technical field
The utility model relates to drill bit field, is specifically related to a kind of leveling style corrugated high accuracy drill bit.
Background technology
Land is not the part of drill bit most critical, but affects the key factor of drilling operating.Land, in the most external of drill bit, forms the external diameter of drill bit, and keeps in touch with the machined surface in hole all the time.Due to the existence of land, gap is formed, and this contributes to control friction and by fricative heat, in addition, gap also can make cooling fluid flow into drill bit cutting edge, reduces the generation of heat further.
But after use wearing and tearing, land height can be caused different, larger beating can be formed, cause the size of machining hole large.And land is too wide, consequent larger friction also can cause the size of machining hole large; Land is too narrow, and drill bit, by instability, adds and easily causes swing man-hour.Particularly for double flute drill bit, knife-band size design is very important, but very unstable.
Summary of the invention
The purpose of this utility model is the above problem overcoming prior art existence, provides a kind of leveling style corrugated high accuracy drill bit, and the utility model structure is simple, exists, add machining accuracy and processing stability without tread degree.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:
A kind of leveling style corrugated high accuracy drill bit, comprise drillstock and bore body body, described drillstock surface is provided with two water injection holes, two described water injection holes are connected with two helical ducts respectively, described helical duct is connected with apopore with brill body body through drillstock, described apopore is positioned on the apex point end face of brill body body, described brill body body is provided with discharge groove, the outer round surface that described brill body body is positioned at apex point end face side is provided with some grooves, the discharge groove of described grooves extend both sides.
Further, described trench cross section is semicircular structure.
Further, described semicircular structure diameter is equal with the distance of adjacent two semicircular structures.
Further, described apex point end face is 140 degree of angles.
Further, be provided with between described apex point end face with brill body body surface and be connected end face.
Further, the side of described linking end face is an angle of 90 degrees.
Further, the material of described drillstock and brill body body is wolfram steel.
The beneficial effects of the utility model are:
Eliminate the structure of land, avoid that it brings beat, fluctuation of service or the problem that easily swings, by the frame mode of internal cooling and grooves extend discharge groove, effectively can instead of the effect of land for dispelling the heat, good cooling results during use, machining accuracy is high.And can available protecting aperture without the structure (namely without tread structure) of land, workpiece surface roughness is reduced greatly, there is good outward appearance and serviceability.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of description, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.Detailed description of the invention of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment technology, be briefly described to the accompanying drawing used required in the description of embodiment technology below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the structural representation at the utility model B-B place;
Fig. 3 is plan structure schematic diagram of the present utility model;
Fig. 4 of the present utility modelly looks up structural representation;
Fig. 5 is drill bit part structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Shown in Fig. 5, a kind of leveling style corrugated high accuracy drill bit, comprise drillstock 1 and bore body body 2, drillstock surface is provided with two water injection holes, 3, two water injection holes and is connected with two helical ducts 4 respectively, and helical duct is connected with apopore 5 with brill body body through drillstock, apopore is positioned on the apex point end face 6 of brill body body, bore on body body and be provided with discharge groove 7, bore on outer round surface that body body is positioned at apex point end face side and be provided with some grooves 8, the discharge groove of grooves extend both sides.
Wherein, trench cross section is semicircle knot, can not residual liquid, and velocity of liquid assets is fast, increases radiating effect.Its semicircular structure diameter is equal with the distance of adjacent two semicircular structures, and heat radiation evenly.
Apex point end face is 140 degree of angles, and be provided with between apex point end face with brill body body surface and be connected end face 9, being connected end face can increase bit face roughness and wearability, and the side being connected end face is an angle of 90 degrees.Be somebody's turn to do the service life that both angular definitions can improve drill bit greatly.
The material of drillstock and brill body body is wolfram steel, and it has good toughness and heat resistance, effectively improves service life.
The operation principle of the present embodiment is as follows:
During use, cooling water enters from water injection hole, by after helical duct from apopore out, when rotated, cooling water can be discharged from discharge groove, owing to rotating and boring the spatial relationship formed after body body enters workpiece, cooling water can enter in groove, thus can make can circulate between two discharge grooves in left and right, this place bores body body surface reason cooling water and flows through and lowered the temperature, thus the use of land structure can be saved, improve bit bore precision, i.e. available protecting aperture, workpiece surface roughness is reduced greatly, there is good outward appearance and serviceability.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a leveling style corrugated high accuracy drill bit, it is characterized in that: comprise drillstock and bore body body, described drillstock surface is provided with two water injection holes, two described water injection holes are connected with two helical ducts respectively, described helical duct is connected with apopore with brill body body through drillstock, described apopore is positioned on the apex point end face of brill body body, described brill body body is provided with discharge groove, the outer round surface that described brill body body is positioned at apex point end face side is provided with some grooves, the discharge groove of described grooves extend both sides.
2. a kind of leveling style corrugated high accuracy drill bit according to claim 1, is characterized in that: described trench cross section is semicircular structure.
3. a kind of leveling style corrugated high accuracy drill bit according to claim 2, is characterized in that: described semicircular structure diameter is equal with the distance of adjacent two semicircular structures.
4. a kind of leveling style corrugated high accuracy drill bit according to claim 1, is characterized in that: described apex point end face is 140 degree of angles.
5. a kind of leveling style corrugated high accuracy drill bit according to claim 1, is characterized in that: be provided with between described apex point end face with brill body body surface and be connected end face.
6. a kind of leveling style corrugated high accuracy drill bit according to claim 5, is characterized in that: the side of described linking end face is an angle of 90 degrees.
7. a kind of leveling style corrugated high accuracy drill bit according to claim 1, is characterized in that: the material of described drillstock and brill body body is wolfram steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520686216.8U CN204975454U (en) | 2015-09-07 | 2015-09-07 | Steady type corrugate high accuracy drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520686216.8U CN204975454U (en) | 2015-09-07 | 2015-09-07 | Steady type corrugate high accuracy drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204975454U true CN204975454U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520686216.8U Active CN204975454U (en) | 2015-09-07 | 2015-09-07 | Steady type corrugate high accuracy drill bit |
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| CN (1) | CN204975454U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486578A (en) * | 2017-07-17 | 2017-12-19 | 株洲钻石切削刀具股份有限公司 | Cold fluted drill in one kind |
| CN109746491A (en) * | 2017-11-03 | 2019-05-14 | 南京知博工业科技有限公司 | A kind of water cooling cutter |
-
2015
- 2015-09-07 CN CN201520686216.8U patent/CN204975454U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486578A (en) * | 2017-07-17 | 2017-12-19 | 株洲钻石切削刀具股份有限公司 | Cold fluted drill in one kind |
| CN109746491A (en) * | 2017-11-03 | 2019-05-14 | 南京知博工业科技有限公司 | A kind of water cooling cutter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |