CN209206537U - A kind of single-blade helical deep hole brill - Google Patents
A kind of single-blade helical deep hole brill Download PDFInfo
- Publication number
- CN209206537U CN209206537U CN201820853990.7U CN201820853990U CN209206537U CN 209206537 U CN209206537 U CN 209206537U CN 201820853990 U CN201820853990 U CN 201820853990U CN 209206537 U CN209206537 U CN 209206537U
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- CN
- China
- Prior art keywords
- drill body
- diameter
- apex point
- deep hole
- drill
- 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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- Drilling Tools (AREA)
Abstract
The utility model relates to a kind of miniature depth drills of single-blade spiral, including drill body, the apex point of drill body one end end are arranged in, and the knife handle of drill body opposite other end end is arranged in；It is provided with a transition part between the drill body and knife handle, the interconnecting piece for connecting drilling device is additionally provided on knife handle；The diameter of the apex point is greater than the diameter of drill body.The chip removal groove shape of the drill body part of the utility model is Reducing screw shape, while so that drill body has preferable intensity, and does not influence chip removal function, preferably copes with the processing of miniature deep hole, avoids drill bit frequent breakage, reduce production cost.On the other hand, apex point diameter, which is greater than drill body, reduces the friction between drill bit entirety and workpiece so that drill body does not contact in boring procedure with workpiece, reduces the calorific value of process.
Description
Technical field
The utility model relates to machine drilling manufacture field, bores more particularly to a kind of single-blade helical deep hole.
Background technique
Drill bit is the specific purpose tool in workpiece surface processing hole, and what drill bit carried out shear action is its head, it cuts
Blade portion and chisel edge are cut as cutter in action.Its cutting edge partial shape is designed according to the profile in required hole
, required hole is capable of processing out as long as a drilling operation, easy to operate and high-efficient, the type of drill bit mainly has fried dough twist
Brill, centre drill, depth drill, reamer etc..Wherein, depth drill is used exclusively for the drill bit of deep hole processing.In machining usually
Hole by the ratio between hole depth and aperture greater than 6 is known as deep hole.Chip removal and heat dissipation are more difficult in the process of deep hole, are processing
When need to help chip removal and heat dissipation by other equipment.Meanwhile the size for processing the depth drill of tiny deep hole is more elongated, rigidity
It is poor with intensity, it is easy to bend and be broken, cause to need to frequently replace drill bit in process.
Summary of the invention
To solve the above-mentioned problems, the utility model provides a kind of intensity and rigidity preferably, and can take into account the list of chip removal
Sword helical deep hole bores.
The utility model is realized using following scheme:
A kind of single-blade helical deep hole brill including drill body, is arranged in the apex point of drill body one end end, and is arranged in drill body phase
To the knife handle of other end end；It is provided with a transition part between the drill body and knife handle, is additionally provided on knife handle for connecting
The interconnecting piece of drilling device；The diameter of the apex point is greater than the diameter of drill body；The apex point is single-blade apex point, and is arranged on apex point
There is spiral helicine first chip space；The outer surface of the drill body is provided with spiral helicine second chip space.
Further, the length of the drill body is 15-25 times of drill body diameter.
Further, the length of the drill body is 20 times of drill body diameter.
Further, the diameter of the apex point is 0.01-0.2mm bigger than drill body diameter.
Further, the diameter of the apex point is 0.05mm bigger than drill body diameter.
Further, first chip space and the second chip space are Reducing screw shape.
Further, the cross sectional shape of the transition part is isosceles trapezoid.
Existing technology is compareed, the utility model has the following beneficial effects:
The chip removal groove shape of the drill body part of the utility model is Reducing screw shape, so that drill body has the same of preferable intensity
When, and chip removal function is not influenced, the processing of miniature deep hole is preferably coped with, drill bit frequent breakage is avoided, reduces and be produced into
This.On the other hand, bit diameter is greater than drill body, so that drill body does not contact in boring procedure with workpiece, reduces drill bit entirety
Friction between workpiece reduces the calorific value of process.
Detailed description of the invention
Fig. 1 is that a kind of single-blade helical deep hole provided by the utility model bores an example structure schematic diagram.
Fig. 2 is the enlarged drawing in the portion A in Fig. 1.
Specific embodiment
For convenient for those skilled in the art understand that the utility model, practical to this below in conjunction with specific embodiments and the drawings
It is novel to be described in further detail.
A kind of single-blade helical deep hole provided by the utility model bores, and including drill body 1, the apex point of drill body one end end is arranged in
2, and the knife handle 3 of 1 opposite other end end of drill body is set.A transition part 4 is provided between drill body 1 and knife handle 3, in knife handle
The interconnecting piece 5 for connecting drilling device is additionally provided on 3.Wherein, the cross sectional shape of transition part 5 is isosceles trapezoid.
The diameter of apex point 2 is greater than the diameter of drill body 1, and apex point 2 is single-blade apex point.Spiral helicine is provided on apex point
One chip space 21, the outer surface of drill body 1 are provided with spiral helicine second chip space 11.First chip space and second in the present embodiment
Chip space is the helical form of variable diameter, so that drill body does not influence chip removal function while with preferable intensity again.
The length of drill body 1 is 15-25 times of its diameter, and the length of drill body is 20 times of its diameter in the present embodiment, specifically
It may be the arbitrary value between 15-25 times when implementation.The diameter of apex point 2 is 0.01-0.2mm bigger than the diameter of drill body 1, this implementation
The diameter of apex point is 0.05mm bigger than drill body in example, and when specific implementation may be the arbitrary value between 0.01-0.2mm.
The chip removal groove shape of the drill body part of the utility model is Reducing screw shape, so that drill body has the same of preferable intensity
When, and chip removal function is not influenced, the processing of miniature deep hole is preferably coped with, drill bit frequent breakage is avoided, reduces and be produced into
This.On the other hand, bit diameter is greater than drill body, so that drill body does not contact in boring procedure with workpiece, reduces drill bit entirety
Friction between workpiece reduces the calorific value of process.
Carbide chip is connected by welding on cutter head by the utility model, in the same of the performance that ensure that drill bit
When, reduce the usage amount of hard alloy, to reduce production cost.On the other hand, the through-hole among cutter hub and cutter head subtracts
The contact area for having lacked drill bit and workpieces processing, reduces cutting output, improves penetration rate, is set to the recessed of head peripheral face
Slot is also beneficial to the chip removal in boring procedure.
Claims (7)
1. a kind of single-blade helical deep hole bores, which is characterized in that including drill body (1), the apex point (2) of drill body one end end is set,
And the knife handle (3) of drill body opposite other end end is set；A transition part is provided between the drill body (1) and knife handle (3)
(4), the interconnecting piece (5) for connecting drilling device is additionally provided on knife handle (3)；The diameter of the apex point (2) is greater than drill body
(1) diameter；The apex point (2) is single-blade apex point, and spiral helicine first chip space (21) is provided on apex point；The drill body
(1) outer surface is provided with spiral helicine second chip space (11).
2. single-blade helical deep hole according to claim 1 bores, which is characterized in that the length of the drill body (1) is that drill body is straight
15-25 times of diameter.
3. single-blade helical deep hole according to claim 2 bores, which is characterized in that the length of the drill body (1) is that drill body is straight
20 times of diameter.
4. single-blade helical deep hole according to claim 1 bores, which is characterized in that the diameter of the apex point (2) is than drill body (1)
The big 0.01-0.2mm of diameter.
5. single-blade helical deep hole according to claim 4 bores, which is characterized in that the diameter of the apex point (2) is than drill body (1)
The big 0.05mm of diameter.
6. single-blade helical deep hole according to claim 1 bores, which is characterized in that first chip space (21) and second row
Considering slot (11) to be worth doing is Reducing screw shape.
7. single-blade helical deep hole according to claim 6 bores, it is characterised in that the cross sectional shape of the transition part (5) is etc.
Waist is trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820853990.7U CN209206537U (en) | 2018-06-04 | 2018-06-04 | A kind of single-blade helical deep hole brill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820853990.7U CN209206537U (en) | 2018-06-04 | 2018-06-04 | A kind of single-blade helical deep hole brill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209206537U true CN209206537U (en) | 2019-08-06 |
Family
ID=67451873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820853990.7U Expired - Fee Related CN209206537U (en) | 2018-06-04 | 2018-06-04 | A kind of single-blade helical deep hole brill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209206537U (en) |
-
2018
- 2018-06-04 CN CN201820853990.7U patent/CN209206537U/en not_active Expired - Fee Related
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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: 20190806 Termination date: 20200604 |