CN210996680U - Novel drill bit - Google Patents
Novel drill bit Download PDFInfo
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- CN210996680U CN210996680U CN201921384725.XU CN201921384725U CN210996680U CN 210996680 U CN210996680 U CN 210996680U CN 201921384725 U CN201921384725 U CN 201921384725U CN 210996680 U CN210996680 U CN 210996680U
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Abstract
The utility model relates to a novel drill bit. The drill comprises a drilling part (1) at the front end, wherein the drilling part (1) comprises a first cutting edge (11) at the top end of the drilling part (1) and a second cutting edge (12) at the rear end of the first cutting edge (11). The utility model discloses the cutting edge is divided into two parts and is set up, divide into first cutting edge and second cutting edge, and first cutting edge and second cutting edge constitute the cutting edge of traditional drill bit, therefore the size of the first cutting edge that is in the front end reduces compared with the size of traditional cutting edge, and in the drilling process, because the size of first cutting edge reduces, its relative strength is strengthened just like this, can be better overcome the resistance that meets in the drilling process, reduce the probability of cutter damage, improve the life of cutter; the second blade at the rear part mainly plays a role in secondary processing, and smooth processing and processing quality are ensured; consequently the utility model discloses a structure can effectual improvement cutting edge's intensity, can guarantee processingquality again, possesses fine practicality.
Description
Technical Field
The utility model relates to a novel drill bit belongs to cutter technical field.
Background
The drill bit is the most common cutter and is widely applied to machining and drilling equipment, and the existing drill bit structure generally comprises a cutter handle and a cutting edge arranged at the front end of the cutter handle; the cutting edge of prior art generally only sets up a cutting edge at the handle of a knife front end, and at the drill bit drilling in-process, especially during the great drilling in aperture, the resistance that the cutting edge front end received when starting to feed is great, and the cutting edge produces the tipping phenomenon easily in drilling in-process, makes the cutter take place to damage, has improved the use cost of drill bit, and the processingquality of influence work piece that simultaneously can be very big needs to be improved.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect, the utility model aims to provide a novel drill bit rational in infrastructure, reduce the drill bit and damage the probability.
Therefore, the utility model adopts the technical scheme that: a novel drill bit comprises a drilling part (1) at the front end, wherein the drilling part (1) comprises a first cutting edge (11) at the top end of the drilling part (1) and a second cutting edge (12) at the rear end of the first cutting edge (11).
The size of the transition part between the first cutting edge (11) and the second cutting edge (12) is gradually reduced from the first cutting edge (11) to the second cutting edge (12).
The second cutting edge (12) is located outside the first cutting edge (11).
The utility model has the advantages that: the utility model discloses the cutting edge is divided into two parts and is set up, divide into first cutting edge and second cutting edge, and first cutting edge and second cutting edge constitute the cutting edge of traditional drill bit, therefore the size of the first cutting edge that is in the front end reduces compared with the size of traditional cutting edge, and in the drilling process, because the size of first cutting edge reduces, its relative strength is strengthened just like this, can be better overcome the resistance that meets in the drilling process, reduce the probability of cutter damage, improve the life of cutter; the second blade at the rear part mainly plays a role in secondary processing, and smooth processing and processing quality are ensured; consequently the utility model discloses a structure can effectual improvement cutting edge's intensity, can guarantee processingquality again, possesses fine practicality.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1 is a drilling part, 11 is a first cutting edge, and 12 is a second cutting edge.
Detailed Description
A novel drill bit comprises a drilling part 1 at the front end, wherein the drilling part 1 comprises a first cutting edge 11 at the top end of the drilling part 1 and a second cutting edge 12 at the rear end of the first cutting edge 11.
The size of the transition between the first blade 11 and the second blade 12 is gradually reduced from the first blade 11 to the second blade 12.
The second cutting edge 12 is located outside the first cutting edge 11.
The utility model discloses a working process does: the drill bit drills under the driving of the driving device, firstly the first cutting edge 11 is in contact with a workpiece, the first cutting edge 11 has relatively small size, so that the first cutting edge 11 can bear relatively large drilling resistance, the first cutting edge 11 can smoothly drill the workpiece, and the second cutting edge 12 at the rear end of the first cutting edge 11 drills the workpiece for the second time under the guidance of the first cutting edge, so that the whole workpiece is completely machined.
Further the utility model discloses a transition portion reduces along front end to rear end size gradually, and the piece that produces when enabling the drilling of first sword 11 when drilling like this is effectively got rid of, and the heat that produces when also enabling the drilling is quick is given off, has further improved the service environment of drill bit, has improved the life and the drilling efficiency of drill bit, and the processingquality of work piece also can be effectively guaranteed, has fine practicality.
Claims (3)
1. A new drill bit, characterized in that the drill bit comprises a drilling part (1) at the front end, the drilling part (1) comprising a first cutting edge (11) at the top end of the drilling part (1) and a second cutting edge (12) at the rear end of the first cutting edge (11).
2. A new drill bit according to claim 1, characterized in that the size of the transition between the first cutting edge (11) and the second cutting edge (12) decreases from the first cutting edge (11) towards the second cutting edge (12).
3. A new drill bit according to claim 1, characterized in that the second cutting edge (12) is outside the first cutting edge (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921384725.XU CN210996680U (en) | 2019-08-26 | 2019-08-26 | Novel drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921384725.XU CN210996680U (en) | 2019-08-26 | 2019-08-26 | Novel drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210996680U true CN210996680U (en) | 2020-07-14 |
Family
ID=71471265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921384725.XU Active CN210996680U (en) | 2019-08-26 | 2019-08-26 | Novel drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210996680U (en) |
-
2019
- 2019-08-26 CN CN201921384725.XU patent/CN210996680U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |