CN2850778Y - Leftward rotation drill tip - Google Patents
Leftward rotation drill tip Download PDFInfo
- Publication number
- CN2850778Y CN2850778Y CN 200520121519 CN200520121519U CN2850778Y CN 2850778 Y CN2850778 Y CN 2850778Y CN 200520121519 CN200520121519 CN 200520121519 CN 200520121519 U CN200520121519 U CN 200520121519U CN 2850778 Y CN2850778 Y CN 2850778Y
- Authority
- CN
- China
- Prior art keywords
- drill
- handed
- bit
- edges
- leftward rotation
- 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
The utility model relates to a leftward rotation drill tip which forms a rod body shape. The utility model comprises a drill handle part which is integrally formed and a drill head part, wherein the drill bit part is arranged at one end of the drill handle end. The drill bit part comprises a plurality of leftward rotation drill edges, a leftward rotation worm groove is arranged between every two adjacent drill edges and the leftward rotation worm grooves are arranged along the drill edges. The drill handle part and the drill head part are respectively integrally formed, and the drill handle part presents a cylindrical rod body shape. Because the utility model is provided with the leftward rotation worm grooves, cooling liquid can be sufficiently supplied to the drill edges, particularly the tip ends of the drill edges, so high heat quantity generated by cutting can be quickly eliminated. The utility model has the advantages of high speed of chip removal, the decrease of sticky chips and adhering edges, the prevention of plastic deformation and long service life.
Description
Technical field
The utility model relates to a kind of left-handed bit, relates in particular to the high heat that a kind of cutting that leaves fast produces, and reduces sticking bits and adheres to sword, prevents plastic deformation, the left-handed bit of long service life.
Background technology
Bit is the indispensable instrument of every profession and trade borings such as building, machining, and bit divides from structure can be divided into the left side brill that is rotated counterclockwise (left-handed), and bore on the right side of turn clockwise (dextrorotation).The anti-wear performance quality of bit, cooling fluid whether can ample supply to drill lip, the chip removal speed whether direct the length in its service life.
Summary of the invention
The purpose of this utility model is to provide a kind of left-handed bit, and its high heat that cutting produces that can leave fast reduces sticking bits and adheres to sword, prevents plastic deformation, long service life.
For achieving the above object, the utility model provides a kind of left-handed bit, be a body of rod, it comprises an integrated drill shank and a bit head, this bit portion is located at an end of drill shank, this bit portion comprises some left-handed drill lips, offers a left-handed snail groove between these two adjacent drill lips, and this left-handed snail groove is along the drill lip setting.
This drill shank and bit head are integrated.
This drill shank is a cylindrical body of rod.
This bit portion comprises two left-handed above-mentioned drill lips that are located on this left-handed bit body of rod, offers two above-mentioned left-handed snail grooves between these two drill lips.
This left-handed bit is made by the good high-speed steel of wearability.
This left-handed bit is divided into short sword type and long sword type.
The utlity model has following beneficial effect: owing to have this left-handed snail groove, cooling fluid can ample supply arrive drill lip, and especially therefore the tip of drill lip can leave fast and cut the high heat that produces; Have this left-handed snail groove, chip removal is fast, reduces sticking bits and adheres to sword, prevents plastic deformation, long service life.
Description of drawings
Fig. 1 is the front view of left-handed bit first embodiment of the utility model.
Fig. 2 is the front view of left-handed another embodiment of bit of the utility model
The specific embodiment
See also Fig. 1 to Fig. 2, a kind of left-handed bit is made by the high-speed steel that wearability is good, and integral body is a circular body of rod, and it comprises a drill shank 1 and a bit head 2, and this drill shank 1 and bit head 2 are integrated.
This drill shank 1 is a cylindrical body of rod, and its end is fixedly clamped on a drilling machine (figure does not show).
This bit portion 2 is located at the front end of drill shank 1, and it comprises two drill lips 22 on the left-handed body of rod that is located at this left-handed bit, offers two left-handed snail grooves 24 between these two drill lips 22.These two left-handed snail grooves 24 are provided with along drill lip 22.Smear metal can discharge along this left-handed snail groove 24.
This left-handed bit is applicable to the deep hole machining of diameter more than 3 times, is widely used in tensile strength and reaches 1000N/m
2Deng processing such as steel, stainless steel, cast irons.
This left-handed bit is divided into short sword type and long sword type.
Owing to have this left-handed snail groove 24, cooling fluid can ample supply arrive drill lip 22, and especially therefore the tip of drill lip can leave fast and cut the high heat that produces; Have this left-handed snail groove 24, chip removal is fast, reduces sticking bits and adheres to sword, prevents plastic deformation, long service life.
Claims (6)
1, a kind of left-handed bit, be a body of rod, it comprises an integrated drill shank and a bit head, this bit portion is located at an end of drill shank, it is characterized in that: this bit portion comprises some left-handed drill lips, offer a left-handed snail groove between these two adjacent drill lips, this left-handed snail groove is along the drill lip setting.
2, left-handed bit according to claim 1, it is characterized in that: this drill shank and bit head are integrated.
3, left-handed bit according to claim 1 is characterized in that: this drill shank is a cylindrical body of rod.
4, left-handed bit according to claim 1 is characterized in that: this bit portion comprises two left-handed above-mentioned drill lips that are located on this left-handed bit body of rod, offers two above-mentioned left-handed snail grooves between these two drill lips.
5, left-handed bit according to claim 1 is characterized in that: this left-handed bit is made by the good high-speed steel of wearability.
6, left-handed bit according to claim 1 is characterized in that: this left-handed bit is divided into short sword type and long sword type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520121519 CN2850778Y (en) | 2005-12-30 | 2005-12-30 | Leftward rotation drill tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520121519 CN2850778Y (en) | 2005-12-30 | 2005-12-30 | Leftward rotation drill tip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2850778Y true CN2850778Y (en) | 2006-12-27 |
Family
ID=37584744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520121519 Expired - Fee Related CN2850778Y (en) | 2005-12-30 | 2005-12-30 | Leftward rotation drill tip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2850778Y (en) |
-
2005
- 2005-12-30 CN CN 200520121519 patent/CN2850778Y/en not_active Expired - Fee Related
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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 |