CN207431346U - For the spiral bit of deep hole machining - Google Patents
For the spiral bit of deep hole machining Download PDFInfo
- Publication number
- CN207431346U CN207431346U CN201721611328.2U CN201721611328U CN207431346U CN 207431346 U CN207431346 U CN 207431346U CN 201721611328 U CN201721611328 U CN 201721611328U CN 207431346 U CN207431346 U CN 207431346U
- Authority
- CN
- China
- Prior art keywords
- cutting
- reaming bar
- oriented
- helical flute
- chip
- 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
A kind of spiral bit for deep hole machining is provided, cutting is oriented to reaming bar and is formed with cutting edge for the small end end of tapered rod and cutting guiding reaming bar, helical flute is formed on the outer circle wall of the cutting guiding reaming bar and helical flute extends to cutting and is oriented on the drillstock outer circle wall of reaming bar big end, the cutting guiding reaming bar small end inclined-plane is formed with aperture and aperture is connected with the guiding reaming bar and drillstock of hollow structure, it is smoothly discharged by helical flute after filing guide device and filing guide device improvement chip-flowing are formed on the outer circle wall of the cutting guiding reaming bar.The utility model sets filing guide device by being oriented in the cutting of pyramidal structure on reaming bar, realize that the chip in helical flute is smoothly discharged after filing guide device improves chip-flowing by helical flute, the phenomenon that effectively avoiding chip stuck between drill bit and hole wall, reaming bar is oriented to for cutting, stable machine direction is provided, improve deep hole machining quality.
Description
Technical field
The utility model belongs to spiral bit technical field, and in particular to a kind of spiral bit for deep hole machining.
Background technology
Common fluted drill is during deep hole processing, since it not can solve in process, cutting heat
Release problem and the quick discharge problem in drilling process chip, thus during deep hole machining, common fluted drill
It is rarely employed, when the depth in hole and the bigger diameter in hole, drilling rod is thin and grows, and poor rigidity, and drilling rod not only easily shakes during drilling
It is dynamic, drill bit can also be made to move towards offset, since the chip space of common fluted drill is small, chip removal difficulty is, it is necessary to carry out withdrawing row
Bits, thus drilling efficiency is seriously affected, in drilling process, on the one hand, cutting fluid cannot reach cutting zone and cause cutting heat
It cannot quickly shed, it is higher and influence Tool in Cutting performance local temperature occur；On the other hand, drilling rod and the chip at hole wall are broken
After the friction of end, drilling rod or hole wall can be pulled or be ground into hole wall, it is appropriate to influence processing.
At present, existing depth drill species is more, there is interior chip removal type and external chip discharging formula, and such depth drill can be solved effectively
Certainly chip removal is not smooth or cooling leads to problems such as manufacturing deficiency not in time, but during deep hole processing, due to equipment more
Complexity, system is more, and each system cannot effective co-ordination so that drilling quality stability is poor, therefore, in process
In, usually there is the problem of various, such as the skew problems in hole, the blockage problem of chip, so as to cause the processing matter in hole
Amount declines, and user's situation about being imposed is not achieved and happens occasionally, in view of the above-mentioned problems, it is necessary to be improved.
Utility model content
The technical issues of the utility model solves：A kind of spiral bit for deep hole machining is provided, by taper knot
The cutting of structure, which is oriented on reaming bar, sets filing guide device, realizes that the chip in helical flute improves chip-flowing through filing guide device
The phenomenon that smoothly being discharged by helical flute afterwards, effectively avoiding chip stuck between drill bit and hole wall is oriented to reaming for cutting
Bar provides stable machine direction, improves deep hole machining quality.
The technical solution adopted in the utility model：For the spiral bit of deep hole machining, including cutting be oriented to reaming bar and
Drillstock, the cutting are oriented to reaming bar and are formed with cutting edge, the cutting for the small end end of tapered rod and cutting guiding reaming bar
Helical flute is formed on the outer circle wall of guiding reaming bar and helical flute extends to the brill that cutting is oriented to reaming bar big end
On handle outer circle wall, the cutting be oriented to reaming bar small end inclined-plane be formed with aperture and the guiding reaming bar of aperture and hollow structure and
Drillstock connects, the cutting be oriented on the outer circle wall of reaming bar be formed with filing guide device and filing guide device improve after chip-flowing by
Helical flute is smoothly discharged.
Wherein, the filing guide device is less than the depth of helical flute for the depth of annular groove and annular groove.
Further, it is described cutting be oriented to reaming bar be tapered rod and cutting be oriented to reaming bar taper be 0-1.5 °.
Further, the cutting is oriented to the item number that helical flute and helical flute are formed on reaming bar outer circle wall
≥2。
Further, the cutting is oriented to reaming bar and drillstock is an integral structure and the diameter of drillstock is less than cutting and is oriented to
The diameter of reaming bar.
The utility model compared with prior art the advantages of：
1st, cutting is oriented on the outer circle wall of reaming bar and is formed with filing guide device in the technical program, can be changed by filing guide device
The flow direction of kind chip, avoids chip from entering between drill bit and hole wall, and stable machine direction is provided for cutting targeting part；
2nd, cutting is oriented to the aperture on reaming bar small end inclined-plane in the technical program and hollow cutting is oriented to reaming bar and brill
Handle connects, and the cutting fluid with certain pressure is oriented to reaming bar and drillstock through cutting can quickly reach cutting portion by aperture
Position, on the one hand, the chip for being conducive to have cut off is gone out by helical flute, and the work of fast flush exclusion is played to chip
With on the other hand, the quick cutting fluid for reaching chip portion is conducive to the diffusion of cutting heat；
3rd, a plurality of helical flute in the technical program is conducive to accelerate the outflow of chip, meanwhile, the diameter of drillstock is small
In the diameter of cutting targeting part, and a plurality of helical flute is extended on the outer circle wall of drillstock so that chip drillstock with
The phenomenon that being not in stuck between hole wall, beneficial to the smooth discharge of cutting, improves deep hole machining quality；
4th, the cutting made of tapered rod is oriented to reaming bar in the technical program, is conducive to the drilling of deep hole, and cutting is oriented to
While the cutting edge drilling of reaming bar small end, cutting is oriented to function of the slot of helical flute on reaming bar along realization reaming,
The service life of drilling efficiency and drill bit is greatly improved, reduces the radius run-out degree that cutting is oriented to reaming bar, drilling
Diameter depends on the diameter that cutting is oriented to reaming bar big end.
Description of the drawings
Fig. 1 is the utility model lateral structure schematic diagram；
Fig. 2 is the dimensional structure diagram in the utility model cutting edge direction；
Fig. 3 is the lateral structure schematic diagram in the utility model drillstock direction.
Specific embodiment
1-3 describes a kind of embodiment of the utility model below in conjunction with the accompanying drawings.
For the spiral bit of deep hole machining, reaming bar 1 and drillstock 2 are oriented to including cutting, the cutting is oriented to reaming bar 1
Small end end for tapered rod and cutting guiding reaming bar 1 is formed with cutting edge 6, and the cutting is oriented to the outer circle wall of reaming bar 1
On be formed with helical flute 3 and helical flute 3 extends to cutting and is oriented on 2 outer circle wall of drillstock of 1 big end of reaming bar, it is described
1 small end inclined-plane of cutting guiding reaming bar is formed with aperture 4 and aperture 4 is connected with the guiding reaming bar 1 and drillstock 2 of hollow structure, institute
It states and is formed on the outer circle wall of cutting guiding reaming bar 1 after filing guide device and filing guide device improvement chip-flowing by helical flute
3 smoothly discharges；Specifically, the filing guide device is less than the depth of helical flute 3 for the depth of annular groove 5 and annular groove 5；Tool
Body, it is 0-1.5 ° that the cutting, which is oriented to the taper that reaming bar 1 be tapered rod and cutting guiding reaming bar 1,；Specifically, described cut
Cut item number >=2 for being oriented to and helical flute 3 and helical flute 3 being formed on 1 outer circle wall of reaming bar；Specifically, the cutting
It is oriented to reaming bar 1 and drillstock 2 is an integral structure and the diameter of drillstock 2 is less than the diameter that cutting is oriented to reaming bar 1.
In the technical program, cutting is oriented on reaming bar 1 and is formed with annular groove 5, is mainly used to improve the flowing of chip, together
When, play a part of one and stablize 1 machine direction of cutting guiding reaming bar.This structure design so that cutting is oriented to reaming bar 1
In process, chip very stringent can be flowed out from helical flute 3, and be unlikely to enter between drill bit and hole wall,
Constantly the cutting fluid with certain pressure is delivered to by aperture 4 cutting parts of cutting guiding reaming bar 1, so that boring
The cutting edge 6 of head can protect into normal cutting state, by a plurality of helical flute 3, timely can outwards arrange chip
It removes, reduces Wen Sheng, chip caused by chip removal is not smooth and be unevenly distributed around hole and cause empty skew problems, together
When, since the radius of clean-up of different parts cutting edge 6 is inconsistent, can objectively play the role of chip breaking, be not in by
It is long in chip, and cause to block, the problem of making cutting edge head that Wen Sheng occur, cutting power is caused to decline, with a level pressure
The cutting fluid of power can go out the chip cut off along helical flute 3, and the quick of chip is excluded to play the effect of washing away, band
There is the cutting fluid of certain pressure, can quickly reach cutting parts, be conducive to the diffusion of cutting heat, due to the cutting edge 6 of drill bit
Certain taper is being carried along the length direction for cutting guiding reaming bar 1, so that drill bit is during the cutting process, thickness of cutting
It is variation, so that the thickness of chip is variable in cutting, objectively plays a part of chip breaking, during the cutting process will not
Lead to the problem of that chip is long, the design of multiple helical flutes 3 is conducive to accelerate the outflow of chip, the outer circle wall of drillstock 2
On be formed with thread groove 6 that is corresponding with multiple 3 positions of helical flute and connecting, the length of thread groove 6 can according to circumstances constantly plus
It is long, since 2 diameter of drillstock is less than the diameter of drilling, it is stuck between drillstock and hole wall to generate chip, in high crush-cutting
Under the action of cutting liquid, chip can be discharged smoothly, and the cutting guiding reaming bar 1 made of tapered rod is conducive to the drilling of deep hole, cuts
The slot edge of helical flute 3, which is realized, while cutting the cutting edge drilling for being oriented to 1 small end of reaming bar, on cutting guiding reaming bar 1 expands
The function in hole greatly improves the service life of drilling efficiency and drill bit, reduces the circular runout that cutting is oriented to reaming bar 1
Degree, the diameter of drilling depend on the diameter that cutting is oriented to 1 big end of reaming bar, and 2 end of drillstock can be fixed with external rod piece to be connected
It connects, after being such as connected with external rod piece screw thread, is lengthened, so as to fulfill the processing of different deep holes.
The preferred embodiment of above-described embodiment, simply the utility model is not used for limiting the utility model practical range,
Therefore all equivalence changes done with content described in the utility model claims, the utility model claims model should all be included in
Within enclosing.
Claims (5)
1. for the spiral bit of deep hole machining, reaming bar (1) and drillstock (2) are oriented to including cutting, it is characterised in that：It is described to cut
The small end end that guiding reaming bar (1) is cut as tapered rod and cutting guiding reaming bar (1) is formed with cutting edge (6), and the cutting is led
Helical flute (3) is formed on the outer circle wall of reaming bar (1) and helical flute (3) extends to cutting and is oriented to reaming bar
(1) on drillstock (2) outer circle wall of big end, the cutting is oriented to reaming bar (1) small end inclined-plane and is formed with aperture (4) and aperture (4)
It is connected with the guiding reaming bar (1) and drillstock (2) of hollow structure, the cutting is oriented on the outer circle wall of reaming bar (1) and is formed with
Filing guide device and filing guide device are smoothly discharged after improving chip-flowing by helical flute (3).
2. the spiral bit according to claim 1 for deep hole machining, it is characterised in that：The filing guide device is annular
The depth of slot (5) and annular groove (5) is less than the depth of helical flute (3).
3. the spiral bit according to claim 1 for deep hole machining, it is characterised in that：The cutting is oriented to reaming bar
(1) be tapered rod and cutting be oriented to reaming bar (1) taper be 0-1.5 °.
4. the spiral bit according to claim 1 for deep hole machining, it is characterised in that：The cutting is oriented to reaming bar
(1) item number >=2 of helical flute (3) and helical flute (3) are formed on outer circle wall.
5. according to the spiral bit for deep hole machining described in claim 1 or 2 or 3 or 4, it is characterised in that：The cutting
It is oriented to reaming bar (1) and drillstock (2) is an integral structure and the diameter of drillstock (2) is less than the diameter that cutting is oriented to reaming bar (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721611328.2U CN207431346U (en) | 2017-11-28 | 2017-11-28 | For the spiral bit of deep hole machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721611328.2U CN207431346U (en) | 2017-11-28 | 2017-11-28 | For the spiral bit of deep hole machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207431346U true CN207431346U (en) | 2018-06-01 |
Family
ID=62284705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721611328.2U Expired - Fee Related CN207431346U (en) | 2017-11-28 | 2017-11-28 | For the spiral bit of deep hole machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207431346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107775059A (en) * | 2017-11-28 | 2018-03-09 | 宝鸡文理学院 | Spiral bit for deep hole machining |
-
2017
- 2017-11-28 CN CN201721611328.2U patent/CN207431346U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107775059A (en) * | 2017-11-28 | 2018-03-09 | 宝鸡文理学院 | Spiral bit for deep hole machining |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20181128 |