CN207508360U - A kind of chip dividing drill head for processing cutting-resistant metal material - Google Patents
A kind of chip dividing drill head for processing cutting-resistant metal material Download PDFInfo
- Publication number
- CN207508360U CN207508360U CN201720390174.2U CN201720390174U CN207508360U CN 207508360 U CN207508360 U CN 207508360U CN 201720390174 U CN201720390174 U CN 201720390174U CN 207508360 U CN207508360 U CN 207508360U
- Authority
- CN
- China
- Prior art keywords
- reamer
- brill
- cutting
- metal material
- flaring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of chip dividing drill heads for processing cutting-resistant metal material, it is bored including guide, divide and lead brill and reamer, cutting edge and flaring chisel edge, the taper drillstock that guide bores is inserted into divide and leads in the centre bore of brill and be fixed using frictional force, the taper drillstock for leading brill is divided to be inserted into the centre bore of reamer and is fixed using frictional force, guide bores, divide and lead brill and reamer one coaxial step cylinder of composition, one end that guide bores goes out a smaller metal aperture equipped with symmetrical cutting edge for drilling, the avris for leading brill and reamer is divided respectively symmetrically to inlay equipped with flaring chisel edge, the aperture that flaring chisel edge drills out guide gradually expands as a large diameter hole, so as to laborsaving, efficiently gun drilling is carried out on the metal material of hardly possible cutting, and improve the precision of drilling, with good practical value.
Description
Technical field
The utility model is related to a kind of drill bit, more particularly to a kind of chip dividing drill head for processing cutting-resistant metal material.
Background technology
Drilling is the operating process punched on processed object, and drilling needs drill bit, if drill bit is not sharp with regard to nothing
Method bores the dynamic object for needing to drill, and drill bit can be divided into fluted drill, chit drill, depth drill, counterbit, centre drill according to its own shape
Deng, according to the difference of its material can be divided into high-carbon steel bore, alloy bore, stainless steel bore etc..Drill bit most importantly cutting edge
Material and angle, it is to ensure that can drill bit smoothly realize the key factor of cutting, and the front end of drill bit forms cutting after sharpening
Part.The cutting tip apex angle of standard fluted drill is 118, and chisel edge angle is 40 °~60 °, and relief angle is 8 °~20 °.Due to structure
The reason of upper, anterior angle is big at outer rim, is gradually reduced to centre, is negative rake at chisel edge（Reachable -55 ° or so）, during drilling from
Squeezing action.In order to improve the cutting ability of drill bit, cutting tip can be grinding into outside various according to the property of machined material
Shape（Such as Ni Zhifu drill）.The shank form of drill bit has two kinds of a staight shank and taper shank, the former is clipped in drill chuck during processing, and the latter is inserted in lathe
In the taper hole of main shaft or tailstock.General drill bit high speed steel making.The fluted drill of seting welding carbide blade or crown is suitable for adding
Work cast iron, hardened steel and nonmetallic materials etc., whole hard alloy small fried dough twists bore to process Meter Parts and printed wiring board
Deng.But for the bigger hole of drilling some diameters, example enters deep hole of the diameter at 50 millimeters or more, usually can not be primary
Property carry out drill, be first manufacture major diameter drill bit it is expensive, secondly major diameter drill bit it is time-consuming and laborious in drilling,
The efficiency of processing is low, therefore people have invented Ni Zhifu drill and come the larger hole of drill diameter, as long as but Ni Zhifu drill there are one cutting edge by
Damage will influence whole cutting ability, therefore some wish a kind of simple in structure, side using the operating personnel of drill bit drilling
The drill bit of convenient to operate come to the metal material for being difficult to cut carry out drilling processing, enable efficiently, efficiently carry out drillman
Make.
Utility model content
The utility model proposes a kind of chip dividing drill heads for processing cutting-resistant metal material, solve existing normal drill bit
The metal material penetration rate of drilling difficult processing cutting is slow, inefficiency the problem of, one pilot drill bit of setting, which drills through, draws hole,
Drill bit and reaming bit are led in the tail end of pilot drill bit for coaxially connected point, divide the avris for leading drill bit and reaming bit top solid respectively
Fixed several cutting edges being staggered so as to gradually carry out Drilling operation to the metal material of hardly possible cutting, improve the effect of drilling
Rate and precision.
In order to solve the above-mentioned technical problem, the utility model provides following technical solution：
A kind of chip dividing drill head for processing cutting-resistant metal material of the utility model, bored including guide, point lead brill and reamer,
Cutting edge and flaring chisel edge, the drillstock that the guide bores are inserted into fixed, the described point of brill for leading brill in the described point of centre bore for leading brill
Handle is inserted into fixed in the centre bore of the reamer, the guide bores, described point lead brill and the reamer form one it is coaxial
Step cylinder, one end that the guide bores is equipped with the symmetrical cutting edge, leads for described point and bores and the reamer
Avris is respectively symmetrically inlayed equipped with the flaring chisel edge.
As a kind of optimal technical scheme of the utility model, the cutting edge and the flaring chisel edge are each provided with blade tip
And land.
As a kind of optimal technical scheme of the utility model, described point is led the flaring horizontal stroke bored on the reamer
The land rear of sword is equipped with chip space.
As a kind of optimal technical scheme of the utility model, the guide bores, described point lead brill and the reamer
Drillstock is taper shank structure, and it is taper hole structure that described point, which is led brill and the endoporus of the reamer,.
As a kind of optimal technical scheme of the utility model, the guide bores, described point lead brill and the reamer
Drillstock is made of stainless steel material, and the cutting edge and the flaring chisel edge are made of cemented carbide material.
As a kind of optimal technical scheme of the utility model, on the blade tip of the cutting edge and the flaring chisel edge
It inlays equipped with diamond grains.
The advantageous effect that the utility model is reached is：It is the precise structure of the utility model, easy to use, it solves existing
Drill bit carry out the problem of machining is time-consuming and laborious in the metal material to hardly possible cutting, guide is set to bore drilling one small
Diameter draws hole, is socketed successively at the drillstock position that guide bores and point leads brill and reamer one coaxial step cylinder of composition
Body, one end that guide bores go out a smaller metal aperture equipped with symmetrical cutting edge for drilling, divide the side for leading brill and reamer
It respectively symmetrically inlays the aperture for drilling out guide equipped with flaring chisel edge and gradually expands as a large diameter hole, so as to save in side
Gun drilling is carried out, and improve the precision of drilling in power, the metal material efficiently cut in hardly possible, bored so as to improve
The performance and precision of head.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not form the limitation to the utility model together.In the accompanying drawings：
Fig. 1 is the subjective structure schematic cross-sectional view of the utility model；
Fig. 2 is the transversary schematic diagram of the utility model；
In figure：1st, guide bores；2nd, divide and lead brill；3rd, reamer；4th, cutting edge；5th, it is flared chisel edge；6th, blade tip；7th, land.
Specific embodiment
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent
Embodiment is selected to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1
As shown in Figs. 1-2, the utility model provides a kind of chip dividing drill head for processing cutting-resistant metal material, is bored including guide
1st, dividing and lead brill 2 and reamer 3, cutting edge 4 and be flared chisel edge 5, the drillstock of guide's brill 1, which is inserted into the centre bore for dividing and leading and bore 2, to be fixed,
Point lead and to bore 2 drillstock and be inserted into fixed in the centre bore of reamer 3, guide bores 1, point lead bore 2 and reamer 3 form one it is coaxial
Step cylinder, one end that guide bores 1 are equipped with symmetrical cutting edge 4, the avris for leading brill 2 and reamer 3 are divided respectively symmetrically to inlay
Flaring chisel edge 5 is embedded with, cutting edge 4 drills out one on the metal material of hardly possible cutting and draws hole, divides and lead on brill 2 and reamer 3
Flaring chisel edge 5 draws hole gradually enlarged diameter according to this, and so as to time saving and energy saving carry out drilling work, these three holes have in addition
Very high concentricity.
Further, cutting edge 4 and flaring chisel edge 5 are each provided with blade tip 6 and land 7, and blade tip 6 is used to directly cut metal material
Material, land 7 provide support force to blade tip 6, keep its rigidity.
Divide and lead 7 rear of land for boring the chisel edge 5 of the flaring on 2 and reamer 3 equipped with chip space, chip space can will be cut
Metal material discharge, avoid obstruction cut come hole.
Guide bores 1, point leads that bore the drillstocks of 2 and reamer 3 be taper shank structure, and it is taper hole point to lead and to bore the endoporus of 2 and reamer 3
Structure, taper shank is embedded in taper hole, and can be attached well using frictional force.
Guide bores 1, the drillstock for leading brill 2 and reamer 3 is divided to be made of stainless steel material, and stainless steel material is made with fine
Structural strength and toughness, cutting edge 4 and flaring chisel edge 5 be made of cemented carbide material, cemented carbide material have it is very high
Hardness enables the utility model easily carry out drilling to metal material.
It is inlayed on the blade tip 6 of cutting edge 4 and flaring chisel edge 5 equipped with diamond grains, diamond grains, which have, is currently known substance
The most hard structure of matter, therefore it is fixed on blade tip 6 can greatly improve its hardness, enable the utility model faster to metal
Material carries out drilling.
It is the precise structure of the utility model, easy to use, set what a guide bored 1 drilling, one minor diameter to draw hole,
The drillstock position that guide bores 1 is socketed point leads brill 2 and reamer 3 forms a coaxial step cylinder successively, guide's brill 1
One end goes out a smaller metal aperture equipped with symmetrical cutting edge 4 for drilling, divides the avris for leading brill 2 and reamer 3 right respectively
Title is inlayed the aperture for drilling out guide equipped with flaring chisel edge 5 and is gradually expanded as a large diameter hole, so as to laborsaving, efficient
Gun drilling is carried out, and improve the precision of drilling on the metal material of hardly possible cutting, so as to improve the performance of drill bit
And precision, solve the problems, such as that existing drill bit is time-consuming and laborious in the metal material progress machining to hardly possible cutting, therefore has
There is good practical value.
Finally it should be noted that：It these are only the preferred embodiment of the utility model, be not limited to this practicality
It is novel, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art,
It still can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is carried out etc.
With replacement.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all include
It is within the protection scope of the utility model.
Claims (6)
1. a kind of chip dividing drill head for processing cutting-resistant metal material, is bored including guide（1）, point lead brill（2）And reamer（3）, cut
Cut sword（4）With flaring chisel edge（5）, which is characterized in that the guide bores（1）Drillstock be inserted into described point and lead brill（2）Centre bore
Middle fixation, described point is led brill（2）Drillstock be inserted into the reamer（3）Centre bore in it is fixed, the guide bores（1）, it is described
Divide and lead brill（2）With the reamer（3）A coaxial step cylinder is formed, the guide bores（1）One end be equipped with pair
The cutting edge claimed（4）, described point is led brill（2）With the reamer（3）Avris respectively symmetrically inlay equipped with the flaring
Chisel edge（5）.
A kind of 2. chip dividing drill head for processing cutting-resistant metal material according to claim 1, which is characterized in that the cutting
Sword（4）With the flaring chisel edge（5）It is each provided with blade tip（6）And land（7）.
3. a kind of chip dividing drill head for processing cutting-resistant metal material according to claim 2, which is characterized in that described point is led
It bores（2）With the reamer（3）On the flaring chisel edge（5）The land（7）Rear is equipped with chip space.
A kind of 4. chip dividing drill head for processing cutting-resistant metal material according to claim 3, which is characterized in that the guide
It bores（1）, described point lead brill（2）With the reamer（3）Drillstock be taper shank structure, described point is led brill（2）With the reamer
（3）Endoporus be taper hole structure.
A kind of 5. chip dividing drill head for processing cutting-resistant metal material according to claim 4, which is characterized in that the guide
It bores（1）, described point lead brill（2）With the reamer（3）Drillstock be made of stainless steel material, the cutting edge（4）With it is described
It is flared chisel edge（5）It is made of cemented carbide material.
A kind of 6. chip dividing drill head for processing cutting-resistant metal material according to claim 5, which is characterized in that the cutting
Sword（4）With the flaring chisel edge（5）The blade tip（6）On inlay equipped with diamond grains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720390174.2U CN207508360U (en) | 2017-04-12 | 2017-04-12 | A kind of chip dividing drill head for processing cutting-resistant metal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720390174.2U CN207508360U (en) | 2017-04-12 | 2017-04-12 | A kind of chip dividing drill head for processing cutting-resistant metal material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207508360U true CN207508360U (en) | 2018-06-19 |
Family
ID=62531448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720390174.2U Expired - Fee Related CN207508360U (en) | 2017-04-12 | 2017-04-12 | A kind of chip dividing drill head for processing cutting-resistant metal material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207508360U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961863A (en) * | 2019-11-18 | 2020-04-07 | 常州时进精密机械有限公司 | Taper hole mirror surface machining process |
| CN112658340A (en) * | 2020-12-17 | 2021-04-16 | 乐清大勇新工具有限公司 | Drill bit and machining process thereof |
-
2017
- 2017-04-12 CN CN201720390174.2U patent/CN207508360U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961863A (en) * | 2019-11-18 | 2020-04-07 | 常州时进精密机械有限公司 | Taper hole mirror surface machining process |
| CN112658340A (en) * | 2020-12-17 | 2021-04-16 | 乐清大勇新工具有限公司 | Drill bit and machining process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180619 Termination date: 20200412 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |