CN2231586Y - Spiral groove drill for processing shaped holes - Google Patents
Spiral groove drill for processing shaped holes Download PDFInfo
- Publication number
- CN2231586Y CN2231586Y CN 95242472 CN95242472U CN2231586Y CN 2231586 Y CN2231586 Y CN 2231586Y CN 95242472 CN95242472 CN 95242472 CN 95242472 U CN95242472 U CN 95242472U CN 2231586 Y CN2231586 Y CN 2231586Y
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- symmetry
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- awl
- shape
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Abstract
The utility model relates to a metal cutting tool for shaping and processing, particularly a drill bit for processing and shaping holes. The drill bit comprises a head provided with cutting edge, a handle (10), and chip removing grooves arranged form the drill tip of the head to the handle, wherein, the chip removing grooves are two helical grooves (4) which are symmetrical to each other. Each spiral groove forms a right-rotary shape or a left-rotary shape. The utility model can form drill bits of A type, B type, R type, and stepped type. The drill bit has sharp cutting edge, small cutting resistance, smooth chip removing property, low energy consumption, high processing efficiency without breaking, and long service life.
Description
The utility model relates to the metal cutting tool of processing and forming, particularly is the drill bit in machine-shaping hole.
The drill bit in existing machine-shaping hole as start(ing) drill, includes the head (as shown in Figure 1) and the shank of cutting edge, and apex point from the head is to the cutting slot of shank.Above-mentioned cutting edge has chisel edge, two blades 2 or R shape blade, awl sword are arranged, protects awl sword etc.Above-mentioned chip area 3 is vertically straight trough shape from apex point to the shank of head.The bit cutting resistance is big, the chip removal resistance is big, thereby is easy to fracture, energy consumption height, life-span weak point.
The purpose of this utility model is to provide a kind of blade sharp, and cutting resistance is little, and chip removal is smooth and easy, can improve the machine-shaping hole spiral fluted drill in working (machining) efficiency and service life.
Machine-shaping of the present utility model hole includes the head and the shank (10) of cutting edge with spiral fluted drill (referring to accompanying drawing), and the head apex point is to the chip area of shank, and above-mentioned chip area be symmetrical two helicla flutes (4).
Above-mentioned cutting edge, the chisel edge (1) that apex point can be arranged, join with chisel edge and two blades (2) of 1＜180 ° of its drift angle ω of symmetry, the seamed edge (7) that directly shovels face with the brill that is straight cylindrical surfaces shape joins and its awl basil ω 2 of symmetry is two awl swords (8) of 2≤120 ° of 1 °≤ω.Thereby constitute A type drill bit.
Above-mentioned cutting edge, the chisel edge (1) that apex point can be arranged, join with chisel edge and two blades (2) of 1＜180 ° of its drift angle ω of symmetry, the seamed edge (7) that directly shovels face with the brill that is straight cylindrical surfaces shape joins and its awl basil ω 2 of symmetry is two awl swords (8) of 2≤90 ° of 1 °≤ω, and two of the symmetry of protecting cone angle ω 3 with having of joining of awl sword are protected awl sword (11).Thereby constitute the Type B drill bit.
Above-mentioned cutting edge can have the chisel edge (1) of apex point, joins and two blades (2) of 1＜180 ° of its drift angle ω of symmetry symmetry and two R shape blades (13) be circular arc in the longitudinal section with chisel edge.Blade and R shape blade can directly join, and also can join through boring the seamed edge that shovels face in the footpath.Thereby constitute R type drill bit.
Above-mentioned cutting edge can have the chisel edge (1) of apex point, joins with chisel edge and two blades (2) of 1＜180 ° of its drift angle ω of symmetry, directly shovels seamed edge (7) vertical connection of face and two plane swords (15) of symmetry with the brill that is straight cylindrical surfaces shape.Thereby formation step bit.
Above-mentioned helicla flute can be a dextrorotation shape, also can be left-handed shape.And be rounding off shape from apex point to shank surface.
Spiral fluted drill of the present utility model is compared with straight fluted drill, has following advantage and effect.
1, helical groove structure of the present utility model as shown in Figure 2, reduces the cutting key groove between its blade 1 and the helicla flute 4 for ψ °, thereby the cutting angle that apex point shovel face and helicla flute wall constitute is little, makes its blade sharp.And the cutting key groove of the straight trough structure of straight trough type chip trough 3 shown in Figure 1 by blade with constitute along the straight trough wall of axis, its ψ ° is bigger, the cutting angle is also big, thereby the blade sharpness is relatively poor.
2, helical groove structure of the present utility model, as shown in Figure 2, its cutting resistance P is disperseed, and forms along spiral fluted component Pe, makes radially that Resistance Value reduces, and drill bit is difficult for being split off.And the cutting resistance P of straight trough structure shown in Figure 1 can not be disperseed, and its cutting resistance is big, the drill bit frangibility.Therefore, the utility model can corresponding raising working (machining) efficiency.Cut down the consumption of energy, improve service life.
3, helical groove structure of the present utility model makes smear metal discharge unobstructed along spiral fluted.And the smear metal of straight trough structure is accumulated in cutting portion, waits to gather to be extruded after full, and chip removal stops up freely.
4, the face structure is shoveled in blade of the present utility model and brill footpath thereof.But the straight cylinder hole of machine-shaping sizing is as centre bore.Add the epicone sword, protect awl sword, R type blade, but the chamfering of time processing moulding hole and various angle thereof and circular arc degree.The subland drill that the plane sword is arranged can disposable machine-shaping shoulder hole.Thereby can reduce the supporting number of cutters of moulding hole processing and clamping blade number of times, reduce unproductive time.
5, spiral fluted dextrorotation of the present utility model to left-handed to, can conveniently design the requirement of the required different rotation direction machine-shapings hole station of multi-station machine tool.
Below, use embodiment and accompanying drawing thereof again, the utility model is described in further detail.
Brief description of drawings.
Fig. 1 is the head construction schematic diagram of existing machine-shaping hole with straight fluted drill.
Fig. 2 is the head construction schematic diagram of machine-shaping of the present utility model hole with spiral fluted drill.
Fig. 3 is the structural representation of a kind of machine-shaping of the present utility model hole with spiral fluted drill.Demonstration is a kind of A type drill bit.
Fig. 4 is the left side TV structure schematic diagram of Fig. 3.
Fig. 5 is the A-A sectional structure schematic diagram of Fig. 3.
Fig. 6, Fig. 7 are the structural representations in the moulding hole of Fig. 3 drill bit processing.
Fig. 8 is the structural representation of a kind of machine-shaping of the present utility model hole with spiral fluted drill.Demonstration is a kind of Type B drill bit.
Fig. 9 is the left TV structure schematic diagram of Fig. 8.
Figure 10 is the structural representation in the moulding hole of Fig. 8 drill bit processing.
Figure 11 is the structural representation of a kind of machine-shaping of the present utility model hole with spiral fluted drill.Demonstration is a kind of R type drill bit.
Figure 12 is the structural representation in the moulding hole of Figure 11 drill bit processing.
Figure 13 is the structural representation of a kind of machine-shaping of the present utility model hole with spiral fluted drill.Demonstration is a kind of notch cuttype drill bit.
Figure 14 is the left TV structure schematic diagram of Figure 13.
Figure 15 is the B-B sectional structure schematic diagram of Figure 13.
Figure 16 is the structural representation in the moulding hole of Figure 13 drill bit processing.
Embodiment 1
A kind of machine-shaping of the present utility model hole spiral fluted drill is shown in Fig. 3～7.Head and shank are arranged.With two helicla flutes 4 to the shank symmetry from the apex point of head.This helicla flute is rounding off shape from apex point to shank surface.The tip of the apex point of above-mentioned head has with drill axis and is vertical chisel edge 1.Two apex points shovel faces 5 of the symmetry of symmetrically arranged two blades 2 that join with chisel edge 1 and blade rear side direction of rotation are arranged, and the cone angle of this apex point shovel face is 1＜180 ° of drift angle ω, can get 90 ° or 120 °.Be two brill footpath shovel faces 6 that its diameter of straight cylindrical surfaces shape equals to bore symmetry directly.The termination apex point shoveled face 5 in face of this bored the footpath shovel.Bore footpath shovel face and helicla flute and intersect two seamed edges 7 that form symmetry.Connect symmetrically arranged two awl swords 8 behind this seamed edge.Awl sword rear side direction of rotation and in the axial direction before and after respectively with two awl swords of the symmetry of boring the cone-shaped that footpath shovel face and shank surface join after shovel face 9.It is 2≤90 ° of 1 °≤ω that the angle of this two awls sword is promptly bored basil ω 2.Can get ω 2=90 °.Above-mentioned shank 10 is right cylindrical, and is into a single integrated structure with head.Thereby constitute A type drill bit.
The shape in the moulding hole that this drill bit is processed counterbore that chamfering is arranged and through hole as shown in Figure 6 and Figure 7.
A kind of machine-shaping of the present utility model hole spiral fluted drill.Shown in Fig. 8～10.Its basic structure is identical with embodiment 1.Be characterized at the rear of awl sword 8 having with awl sword 8 symmetry of joining two to protect the angle that awl sword 11, two protects the awl sword and promptly protect awl basil ω 3.ω 3 sets on demand.Have protect awl sword rear side direction of rotation and after two of back symmetry protect the awl sword shovel face 12.Thereby constitute the Type B drill bit.Front and back join with awl sword shovel face and shank surface respectively in the axial direction.
The shape in the moulding hole that this drill bit is processed as shown in figure 10.
A kind of machine-shaping of the present utility model hole spiral fluted drill.Shown in Figure 11,12.Its basic structure is identical with embodiment 1.Be characterized in being right after blade 2 be symmetry and at drill bit along two R shape blades 13 that are R circular arc on the longitudinal section of axis, the shape and the size of circular arc design on request.R shape blade rear side direction of rotation and in the axial direction before and after the blade shovel face 14 of two R shapes of the symmetry of joining with apex point shovel face 5 and shank 10 surfaces respectively.Between R shape blade and R shape blade shovel face and blade and apex point shovel face, seamed edge can be arranged and bore footpath shovel face.Thereby constitute R type drill bit.
The shape in the moulding hole that this drill bit is processed rounding hole as shown in figure 12.
A kind of machine-shaping of the present utility model hole spiral fluted drill.Shown in Figure 13～16.Its basic structure is identical with embodiment 1.Altogether characteristics are and bore that the seamed edge 7 of shovel face 6 directly joins and two plane swords 15 of the symmetry vertical with drill axis.The plane sword shovel face 16 that plane sword rear side direction of rotation forms, with the straight cylindrical surfaces shape that plane sword shovel face joins, its diameter is that the big hole drill of macropore diameter directly shovels face 17.The shank diameter of drill bit can directly shovel the face diameter less than big hole drill.Thereby constitute the notch cuttype drill bit.
The shape in the moulding hole that this drill bit is processed notch cuttype hole as shown in figure 16.
Claims (6)
1, machine-shaping hole spiral fluted drill includes the head and the shank (10) of cutting edge, and the head apex point is characterized in that to the chip area of shank chip area is two helicla flutes (4) of symmetry.
2, machine-shaping as claimed in claim 1 hole spiral fluted drill, it is characterized in that said cutting edge has the chisel edge (1) of apex point, join with chisel edge and two blades (2) of 1＜180 ° of its drift angle ω of symmetry, and be that straight cylindrical surfaces shape bores that the seamed edge (7) that shovels face in the footpath joins and two awl swords (8) of 2＜120 ° of its awl basil ω of symmetry.
3, machine-shaping as claimed in claim 1 hole spiral fluted drill, it is characterized in that said cutting edge has the chisel edge (1) of apex point, join with chisel edge and two blades (2) of 1＜180 ° of its drift angle ω of symmetry, be that straight cylindrical surfaces shape bores that the seamed edge (7) that shovels face in the footpath joins and its awl basil ω 2 of symmetry be 2≤90 ° two awls of 1 °≤ω sword (8), two of the symmetry of protecting awl basil ω 3 with having of joining of awl sword protect awl sword (11).
4, machine-shaping as claimed in claim 1 hole spiral fluted drill, it is characterized in that said cutting edge has the chisel edge (1) of apex point, join and two blades (2) of 1＜180 ° of its drift angle ω of symmetry symmetry and two R shape blades (13) be circular arc in the longitudinal section with chisel edge.
5, machine-shaping as claimed in claim 1 hole spiral fluted drill, it is characterized in that said cutting edge has the chisel edge (1) of apex point, join with chisel edge and two blades (2) of 1＜180 ° of its drift angle ω of symmetry, directly shovel seamed edge (7) vertical connection of face and two plane swords (15) of symmetry with the brill that is straight cylindrical surfaces shape.
6,, it is characterized in that said helicla flute is dextrorotation shape or left-handed shape, is rounding off shape from apex point to shank surface as claim 1,2,3,4 or 5 described machine-shaping hole spiral fluted drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95242472 CN2231586Y (en) | 1995-12-01 | 1995-12-01 | Spiral groove drill for processing shaped holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95242472 CN2231586Y (en) | 1995-12-01 | 1995-12-01 | Spiral groove drill for processing shaped holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2231586Y true CN2231586Y (en) | 1996-07-24 |
Family
ID=33883423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95242472 Expired - Fee Related CN2231586Y (en) | 1995-12-01 | 1995-12-01 | Spiral groove drill for processing shaped holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2231586Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102741001A (en) * | 2010-02-04 | 2012-10-17 | 钴碳化钨硬质合金公司 | Drilling tool |
| CN102825304A (en) * | 2011-06-17 | 2012-12-19 | 马克托罗工业株式会社 | Drill bit |
| CN103722217A (en) * | 2013-12-23 | 2014-04-16 | 无锡雨田精密工具有限公司 | Arc forming drill |
| CN103769654A (en) * | 2012-10-22 | 2014-05-07 | 诺德轮毂制造有限公司 | Bolt hole drill bit |
| US9403246B2 (en) | 2010-02-04 | 2016-08-02 | Kennametal Inc. | Drill bit and method for manufacturing |
| CN110461515A (en) * | 2018-01-22 | 2019-11-15 | Osg株式会社 | The manufacturing method of step drill and step drill |
| CN113561384A (en) * | 2021-07-29 | 2021-10-29 | 杨雨晴 | Automatic processing device for chemical production plastic barrel |
-
1995
- 1995-12-01 CN CN 95242472 patent/CN2231586Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102741001A (en) * | 2010-02-04 | 2012-10-17 | 钴碳化钨硬质合金公司 | Drilling tool |
| CN102741001B (en) * | 2010-02-04 | 2015-05-27 | 钴碳化钨硬质合金公司 | Drilling tool and manufacturing method thereof |
| US9403246B2 (en) | 2010-02-04 | 2016-08-02 | Kennametal Inc. | Drill bit and method for manufacturing |
| US9901990B2 (en) | 2010-02-04 | 2018-02-27 | Kennametal Inc. | Drilling tool |
| US10661356B2 (en) | 2010-02-04 | 2020-05-26 | Kennametal Inc. | Drilling tool |
| CN102825304A (en) * | 2011-06-17 | 2012-12-19 | 马克托罗工业株式会社 | Drill bit |
| CN102825304B (en) * | 2011-06-17 | 2018-07-03 | 株式会社斯巴鲁 | drill bit |
| CN103769654A (en) * | 2012-10-22 | 2014-05-07 | 诺德轮毂制造有限公司 | Bolt hole drill bit |
| CN103722217A (en) * | 2013-12-23 | 2014-04-16 | 无锡雨田精密工具有限公司 | Arc forming drill |
| CN110461515A (en) * | 2018-01-22 | 2019-11-15 | Osg株式会社 | The manufacturing method of step drill and step drill |
| US11103933B2 (en) | 2018-01-22 | 2021-08-31 | Osg Corporation | Step drill and manufacturing method for step drill |
| CN113561384A (en) * | 2021-07-29 | 2021-10-29 | 杨雨晴 | Automatic processing device for chemical production plastic barrel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |