CN207735641U - High speed steel twist drill - Google Patents
High speed steel twist drill Download PDFInfo
- Publication number
- CN207735641U CN207735641U CN201721896484.8U CN201721896484U CN207735641U CN 207735641 U CN207735641 U CN 207735641U CN 201721896484 U CN201721896484 U CN 201721896484U CN 207735641 U CN207735641 U CN 207735641U
- Authority
- CN
- China
- Prior art keywords
- cutting
- supporting rod
- housing
- chip space
- drill bit
- 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.)
- Active
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of high speed steel twist drill, including drill bit and supporting rod, interior cooling hole is coaxially provided on the supporting rod, the housing of thin wall type is arranged with outside supporting rod, annular housing is formed between the housing and supporting rod, clamping is laid with multiple radial pores burr week, and the radial pore is connected to the interior cooling hole and the annular housing；The cutting rib of the drill bit is equipped with the alloy head for changing apex angle, and the cutting rib by the alloy rostral is equipped with alloy head chip space, and auxiliary chip space is equipped in the chip space of drill bit, cutting face chip space is additionally provided on the cutting face of drill bit.The utility model can select the alloy head of different cutting apex angles according to the difference of cutting material, while can just accelerate cutting efficiency significantly, and chip removal is also more smooth, and can greatly improve the cooling effect of fluted drill, improves the service life of fluted drill.
Description
Technical field
The utility model is related to fluted drill technical fields, and in particular to a kind of high speed steel twist drill.
Background technology
During fluted drill use, for different fluted drills, different materials is cut, if using same apex angle,
Then cutting efficiency can substantially reduce, it is therefore desirable to a kind of fluted drill that can change fried dough twist point angle be developed, simultaneously because apex angle
Change, the chip removal mode of corresponding fluted drill will also change.
High speed steel twist drill will produce a large amount of heat during use, generally be taken away by cutting coolant
Heat, but by being ejected into the coolant liquid of finished surface, it is not uniform enough usually to will appear spray, causes fluted drill part mistake
Heat, Fast Wearing fluted drill.
Utility model content
In view of the deficienciess of the prior art, the utility model provides a kind of high speed steel twist drill, it can be according to cutting material
The difference of material, selects the alloy head of different cutting apex angles, while can greatly speed up cutting efficiency, and chip removal is also more smooth, together
When can greatly improve the cooling effect of fluted drill, improve the service life of fluted drill.
The utility model provides a kind of high speed steel twist drill, including drill bit and supporting rod, is coaxially provided on above-mentioned supporting rod
Interior cooling hole, supporting rod are arranged with the housing of thin wall type outside, and annular housing is formed between above-mentioned housing and supporting rod, and burr is clamped
It is laid with multiple radial pores week, above-mentioned radial pore is connected to above-mentioned interior cooling hole and above-mentioned annular housing；Above-mentioned drill bit
Cutting rib is equipped with the alloy head for changing apex angle, and the cutting rib by above-mentioned alloy rostral is equipped with alloy head chip space, bores
It is equipped with auxiliary chip space in the cutting slot of head, cutting face chip space is additionally provided on the cutting face of drill bit.
Preferably, above-mentioned alloy head includes cutting cone and connected unit；Above-mentioned connected unit is equipped with axial threaded hole,
Be equipped with axial bolts alloy head being locked in drill bit top groove in above-mentioned threaded hole.
Preferably, above-mentioned connected unit side wall is equipped with radial screw bore and radial bolts.
Preferably, above-mentioned cutting face chip space is connected to auxiliary chip space.
Preferably, constituting top cutting edge between the both sides and cutting face of above-mentioned cutting face chip space.
Preferably, above-mentioned housing is connected with supporting rod upper end by sealing plate, also it is plugged between housing and supporting rod
Annular oriffice；Ring week, permutation had at least six axial passage on above-mentioned annular oriffice.
Preferably, the cutting slot distance of above-mentioned housing and drill bit is at least 30mm, the inner wall and supporting rod of housing
Outer wall between distance be at least 1.2mm.
The utility model has following advantageous effects：
The utility model can select the alloy head of different cutting apex angles, while alloy according to the difference of cutting material
The apex angle of head is different with traditional fried dough twist point angle cutting angle, is triangle cone, with the bit of cutting process, for material
The cutting of material and extruding angle can be different, can greatly speed up cutting efficiency, chip removal is also more smooth.It on the other hand, can be significantly
The cooling effect for improving fluted drill, improves the service life of fluted drill, and annular oriffice as cooling intermediate, can also both increase
Strong stability of bit reduces axial runout and vibration.
Description of the drawings
Fig. 1 the utility model partial schematic sectional views.
Fig. 2 the utility model radial direction schematic cross-sectional views.
The enlarged diagram of drill bit in Fig. 3 the utility model.
Fig. 4 the utility model alloy head stereoscopic schematic diagram not with threaded hole.
Specific implementation mode
The utility model is further described in conjunction with drawings and examples：
As depicted in figs. 1 and 2, the utility model provides a kind of high speed steel twist drill, including drill bit 11 and supporting rod 12, folder
Hold and be coaxially provided with interior cooling hole 13 on bar 12, be arranged with the housing 14 of thin wall type outside supporting rod 12, housing 14 and supporting rod 11 it
Between form annular housing, be laid with multiple radial pores 15 in 12 ring week of supporting rod, radial pore 15 be connected to interior cooling hole 13 with
Annular housing.Housing 14 is connected with 12 upper end of supporting rod by sealing plate 16, and ring is also plugged between housing 14 and supporting rod 12
Shape orifice plate 17.Ring week, permutation had at least six axial passage 18 on annular oriffice 17, cooling to be situated between for being used as cooling medium stream road
Matter can be the either cooling liquid of high speed cold air.
The most short distance D of housing 14 and the cutting slot 19 of drill bit 11 is at least 30mm, and guarantee does not influence drill bit chip breaking
With go out bits.Distance is at least 1.2mm between the inner wall and the outer wall of supporting rod 12 of housing 14, ensures to be fully cooled, and improves cooling
Efficiency, but can not be arranged excessive, when more than 3mm, air drag will increase, and will produce additional vibratory and bounce.
As shown in figure 3, the alloy head 42 for changing apex angle is additionally provided on the cutting rib of drill bit 11, by 42 side of alloy head
It cuts rib and is equipped with alloy head chip space 45, be equipped in the chip space of drill bit 11 and assist chip space 46, on the cutting face of drill bit 11
It is additionally provided with cutting face chip space 41.Cutting face chip space 41 is connected to auxiliary chip space 46, further increases the smooth degree of chip removal.
Top cutting edge 48 is constituted between the both sides and cutting face of cutting face chip space 41, and one is additionally provided with by the side of cutting face chip space 41
A guide groove 47.
As shown in figure 4, alloy head 42 includes cutting cone 421 and connected unit 422.Connected unit 422 is for being embedded into drill bit
In the installation space or groove at 11 tops, connected unit 422 is equipped with axial threaded hole（It is not drawn into figure）, it is equipped in threaded hole
Alloy head 42 is locked at the axial bolts 43 in drill bit top groove, for installing and fixing alloy head 42.422 side of connected unit
Wall is equipped with radial screw bore and radial bolts 44, for further fixing alloy head 42.Alloy head 42 can be replaced, and greatly improve
Versatility.
Above are merely preferred embodiments of the utility model, the scope of protection of the utility model is not limited merely to implement
Example, technical solution belonging to the idea of the present invention belong to the scope of protection of the utility model.It should be pointed out that for this
For the those of ordinary skill of technical field, several improvements and modifications without departing from the principle of the utility model, these
Improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (7)
1. a kind of high speed steel twist drill, including drill bit and supporting rod, it is characterised in that：Interior cooling is coaxially provided on the supporting rod
Hole, supporting rod are arranged with the housing of thin wall type outside, and annular housing, clamping burr Zhou Junbu are formed between the housing and supporting rod
Equipped with multiple radial pores, the radial pore is connected to the interior cooling hole and the annular housing；
The cutting rib of the drill bit is equipped with the alloy head for changing apex angle, and the cutting rib by the alloy rostral, which is equipped with, to be closed
Golden head chip space, the chip space of drill bit is interior to be equipped with auxiliary chip space, and cutting face chip space is additionally provided on the cutting face of drill bit.
2. high speed steel twist drill according to claim 1, it is characterised in that：The alloy head includes cutting cone and connection
Platform；The connected unit is equipped with axial threaded hole, is equipped in the threaded hole and alloy head is locked in drill bit top groove
Axial bolts.
3. high speed steel twist drill according to claim 2, it is characterised in that：The connected unit side wall is equipped with radial screw bore
And radial bolts.
4. high speed steel twist drill according to claim 1, it is characterised in that：The cutting face chip space and auxiliary chip space
Connection.
5. high speed steel twist drill according to claim 1, it is characterised in that：The both sides of the cutting face chip space and cutting
Face constitutes top cutting edge.
6. high speed steel twist drill according to claim 1, it is characterised in that：The housing passes through sealing with supporting rod upper end
Plate is connected, and annular oriffice is also plugged between housing and supporting rod；Ring week, permutation had at least six axially logical on the annular oriffice
Road.
7. high speed steel twist drill according to claim 1, it is characterised in that：The cutting slot of the housing and drill bit at a distance of away from
From at least 30mm, distance is at least 1.2mm between the inner wall of housing and the outer wall of supporting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721896484.8U CN207735641U (en) | 2017-12-29 | 2017-12-29 | High speed steel twist drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721896484.8U CN207735641U (en) | 2017-12-29 | 2017-12-29 | High speed steel twist drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207735641U true CN207735641U (en) | 2018-08-17 |
Family
ID=63120801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721896484.8U Active CN207735641U (en) | 2017-12-29 | 2017-12-29 | High speed steel twist drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207735641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935313A (en) * | 2021-04-01 | 2021-06-11 | 宁波恺露重型锻造有限公司 | Horizontal punching device |
-
2017
- 2017-12-29 CN CN201721896484.8U patent/CN207735641U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935313A (en) * | 2021-04-01 | 2021-06-11 | 宁波恺露重型锻造有限公司 | Horizontal punching device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103909287B (en) | Combined type macropore depth drill | |
| CN102211217A (en) | Trepanning tool with self-air cooling and chip removing functions | |
| CN205888178U (en) | Carbide combination cutting tool | |
| CN207735641U (en) | High speed steel twist drill | |
| CN101817102B (en) | Annular drilling tool | |
| CN102350528A (en) | Directional cooling milling cutter | |
| CN103737071B (en) | A kind of deep hole machining spray, which is inhaled, bores | |
| CN202356735U (en) | Reamer | |
| CN105834462A (en) | Composite cutter for boring cylinder hole and chamfering cylinder hole | |
| CN201871775U (en) | Drilling reamer | |
| CN104148966A (en) | Improved hole milling clamp for eccentric upper sealing head flange | |
| CN207119828U (en) | A kind of deep hole drill | |
| CN207642366U (en) | Self cooling fluted drill | |
| CN102470453A (en) | Drilling tool | |
| CN206845104U (en) | A kind of polycrystalline diamond compact bit of good heat dissipation effect | |
| CN205851957U (en) | A kind of internal refrigeration storage fish-tail cutter | |
| CN213410628U (en) | Deep cavity elongated hole cutting processing utensil | |
| CN104985218B (en) | Machining process for machining through hole in workpiece on disc machine | |
| CN201168811Y (en) | Staggered Deep Hole Machining Tool | |
| CN207177738U (en) | A kind of efficiently correcting reamer bit structure | |
| CN210615262U (en) | Miniature cutter with coolant liquid delivery hole | |
| CN210334478U (en) | High-speed steel short column drill bit | |
| CN207606323U (en) | A kind of wrought aluminium wheel brill boring compound tool | |
| CN201648421U (en) | Drill bit for blast furnace tapping machine | |
| CN202291572U (en) | Directional cooling milling cutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Novel high-speed steel twist drill Effective date of registration: 20180907 Granted publication date: 20180817 Pledgee: Zhejiang Tyrone commercial bank Limited by Share Ltd Taizhou Wenling branch Pledgor: Wenling Yongxin Tool Co.,Ltd. Registration number: 2018330000267 |