CN208236340U - Bulb-shaped drill body - Google Patents
Bulb-shaped drill body Download PDFInfo
- Publication number
- CN208236340U CN208236340U CN201820840200.1U CN201820840200U CN208236340U CN 208236340 U CN208236340 U CN 208236340U CN 201820840200 U CN201820840200 U CN 201820840200U CN 208236340 U CN208236340 U CN 208236340U
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- China
- Prior art keywords
- drill body
- circular hole
- hemisphere
- rotary table
- cylinder
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Abstract
The utility model discloses a kind of bulb-shaped drill bodies, including cylinder drill body and it is integrally formed the hemisphere drill bit in cylinder drill body one end, vertical double wedge is evenly arranged on the surface of cylinder drill body, the diameter of hemisphere drill bit is identical as the diameter of cylinder drill body, fluid injection circular hole is provided centrally in cylinder drill body, the drain circular hole being connected with fluid injection circular hole is provided in hemisphere drill bit, it is tilted in the outlet that the side of hemisphere drill bit is evenly arranged with the inclination circular hole that at least two are connected with drain circular hole and tilts circular hole to the side close to cylinder drill body, the cylinder drill body other end is disposed with rotary table transition part and rotary table end, the big nose circle diameter of rotary table end and the small nose circle diameter of rotary table transition part are identical.The structure setting of the utility model is reasonable, is conducive to carry out dust lead and drilling operation, is conducive to import cooling liquid, is conducive to the cooling of hemisphere drill bit, can be improved its stability in use and reliability, strong applicability and practicability is good.
Description
Technical field
The utility model, which belongs to, bores chip technology field, and in particular to a kind of bulb-shaped drill body.
Background technique
Drill bit is essential structure when drilling operation, and the drill bit of traditional technology is mainly the point with the drill body of rule
Or the head composition of circle, it is installed on drilling tool when in use and drives bit to complete drilling operation by drilling tool, though
So can satisfy the use demand of ordinary circumstance, but drill bit can generate a large amount of heat in drilling process, thus need using
It waters or pours water to cool down, the drill bit cooling liquid of traditional technology is extremely difficult to bit head, be easy to cause drill bit when using for a long time
Damage, influences using reliability, applicability and practicability are restricted.
Summary of the invention
Reasonable and strong applicability the bulb-shaped drill body the purpose of the utility model is to provide a kind of structure setting.
The technical solution for realizing the utility model aim is a kind of bulb-shaped drill body, including cylinder drill body and integrated molding exist
The hemisphere drill bit of cylinder drill body one end is evenly arranged with vertical double wedge, the hemisphere on the surface of the cylinder drill body
The diameter of drill bit is identical as the diameter of cylinder drill body, fluid injection circular hole is provided centrally in the cylinder drill body, in the hemisphere
It is provided with the drain circular hole being connected with the fluid injection circular hole in body drill bit, is evenly arranged in the side of the hemisphere drill bit
The outlet of at least two inclination circular holes being connected with the drain circular hole and the inclination circular hole is to close to the one of cylinder drill body
It rolls tiltedly, the cylinder drill body other end is disposed with rotary table transition part and rotary table end, the big nose circle of the rotary table end
Diameter is identical as the small nose circle diameter of rotary table transition part.
The height of the cylinder drill body is 4.4cm, and the height of the rotary table transition part is the height of 2.6cm and rotary table end
For 0.6cm.
The small nose circle diameter of the rotary table end is 4.3cm, and the diameter of the cylinder drill body is 9.48cm and described vertical
The height of double wedge is 0.4cm.
The height of the hemisphere drill bit is 3.6cm.
The utility model has the effect of positive: the structure setting of the utility model is reasonable, is provided with vertical double wedge, has
Conducive to progress dust lead and drilling operation, while it being provided with fluid injection circular hole and drain circular hole, is conducive to import cooling liquid, is conducive to half
The cooling of sphere drill bit, can be improved its stability in use and reliability to a certain extent, strong applicability and practicability is good.
Detailed description of the invention
In order to be more likely to be clearly understood the content of the utility model, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model, in which:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the sectional structure chart of the utility model.
Specific embodiment
(embodiment 1)
Fig. 1 and Fig. 2 shows a kind of specific embodiment of the utility model, and wherein Fig. 1 is the structure of the utility model
Schematic diagram；Fig. 2 is the sectional structure chart of the utility model.
See that Fig. 1 and Fig. 2, a kind of bulb-shaped drill body including cylinder drill body 1 and are integrally formed in 1 one end of cylinder drill body
Hemisphere drill bit 2 is evenly arranged with vertical double wedge 3 on the surface of the cylinder drill body 1, the diameter of the hemisphere drill bit 2 with
The diameter of cylinder drill body is identical, is provided centrally with fluid injection circular hole 4 in the cylinder drill body 1, sets in the hemisphere drill bit 2
It is equipped with the drain circular hole 5 being connected with the fluid injection circular hole 4, is evenly arranged at least two in the side of the hemisphere drill bit 2
An inclination of the outlet of a inclination circular hole 6 being connected with the drain circular hole and the inclination circular hole to close cylinder drill body
Tiltedly, 1 other end of cylinder drill body is disposed with rotary table transition part 7 and rotary table end 8, and the big nose circle of the rotary table end is straight
Diameter is identical as the small nose circle diameter of rotary table transition part.When in use, water is sprayed into fluid injection by the water spraying structure that can be used in drilling tool
In circular hole, water enters by drain circular hole realizes cooling on hemisphere drill bit.
The height of the cylinder drill body is 4.4cm, and the height of the rotary table transition part is the height of 2.6cm and rotary table end
For 0.6cm.
The small nose circle diameter of the rotary table end is 4.3cm, and the diameter of the cylinder drill body is 9.48cm and described vertical
The height of double wedge is 0.4cm.
The height of the hemisphere drill bit is 3.6cm.
The structure setting of the utility model is reasonable, is provided with vertical double wedge, is conducive to carry out dust lead and drilling operation, together
When be provided with fluid injection circular hole and drain circular hole, be conducive to import cooling liquid, be conducive to the cooling of hemisphere drill bit, to a certain extent
It can be improved its stability in use and reliability, strong applicability and practicability is good.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.And the obvious changes or variations that these connotations for belonging to the utility model are extended out still fall within it is practical
Novel protection scope.
Claims (4)
1. a kind of bulb-shaped drill body, it is characterised in that: including cylinder drill body and be integrally formed the hemisphere in cylinder drill body one end
Body drill bit is evenly arranged with vertical double wedge, the diameter and cylinder drill body of the hemisphere drill bit on the surface of the cylinder drill body
Diameter it is identical, be provided centrally with fluid injection circular hole in the cylinder drill body, be provided in the hemisphere drill bit with it is described
The drain circular hole that fluid injection circular hole is connected is evenly arranged at least two and drain circle in the side of the hemisphere drill bit
The outlet of inclination circular hole and the inclination circular hole that hole is connected is tilted to the side close to cylinder drill body, and the cylinder drill body is another
One end is disposed with rotary table transition part and rotary table end, the roundlet of big the nose circle diameter and rotary table transition part of the rotary table end
Hold diameter identical.
2. bulb-shaped drill body according to claim 1, it is characterised in that: the height of the cylinder drill body is 4.4cm, described
The height of rotary table transition part is 2.6cm and the height of rotary table end is 0.6cm.
3. bulb-shaped drill body according to claim 2, it is characterised in that: the small nose circle diameter of the rotary table end is
4.3cm, the diameter of the cylinder drill body is 9.48cm and the height of the vertical double wedge is 0.4cm.
4. bulb-shaped drill body according to claim 3, it is characterised in that: the height of the hemisphere drill bit is 3.6cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820840200.1U CN208236340U (en) | 2018-05-22 | 2018-05-22 | Bulb-shaped drill body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820840200.1U CN208236340U (en) | 2018-05-22 | 2018-05-22 | Bulb-shaped drill body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208236340U true CN208236340U (en) | 2018-12-14 |
Family
ID=64576405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820840200.1U Active CN208236340U (en) | 2018-05-22 | 2018-05-22 | Bulb-shaped drill body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208236340U (en) |
-
2018
- 2018-05-22 CN CN201820840200.1U patent/CN208236340U/en active Active
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