CN210305887U - Novel drill bit - Google Patents
Novel drill bit Download PDFInfo
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- CN210305887U CN210305887U CN201822141655.7U CN201822141655U CN210305887U CN 210305887 U CN210305887 U CN 210305887U CN 201822141655 U CN201822141655 U CN 201822141655U CN 210305887 U CN210305887 U CN 210305887U
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Abstract
The utility model relates to a novel drill bit. The drill comprises a cutting edge (1) at the front end, wherein the cutting edge (1) comprises a first cutting edge (11) at the top end of the cutting edge (1) and a second cutting edge (12) at the rear end of the first cutting edge (11). The utility model discloses the drill bit utilizes the circular arc to cut apart into first cutting edge (11) and second cutting edge (12) with the drill point, the drill bit that has dual cutting edge has been constituteed to first cutting edge and second cutting edge, second cutting edge (12) external diameter is greater than the most advanced external diameter of first cutting edge (11), the drill bit of this dual cutting edge, easily centering and cutting have reduced the resistance of drilling in-process, drilling precision and quality have effectively been improved, the life of cutter has been improved greatly, and the utility model has the advantages of being good.
Description
Technical Field
The utility model relates to a novel drill bit belongs to cutter technical field.
Background
The drill bit is the most commonly used cutter, and the application is very extensive in machining and drilling equipment, and current drill bit generally uses the tip sword coping promptly, and in the drill bit drilling process, especially when the great drill bit of diameter drills, the resistance is great during the cutting of cutting edge, and the cutting edge produces high temperature burn and tipping phenomenon easily in the drilling process, has reduced the life of drill bit by a wide margin, has improved the use cost of drill bit, the processingquality of the work piece that can be very big influence simultaneously, need improve.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect, aim at provides a rational in infrastructure, improves drilling quality and efficiency, reduces the novel drill bit of drill bit damage probability.
Therefore, the utility model adopts the technical scheme that: a novel 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 first cutting edge (11) and the second cutting edge (12) are in transition through an arc line, and the size of the outer diameter of the tip of the first cutting edge (11) is larger than that of the joint of the arc line and the second cutting edge (12).
The outer diameter of the second cutting edge (12) is larger than that of the first cutting edge (11).
The utility model has the advantages that: the utility model discloses the drill bit utilizes the circular arc to cut apart into dual cutting edge with the drill point, and the external diameter size that will be in the first cutting edge of front end reduces, easily centers on and cuts, and second cutting edge (12) external diameter is greater than first cutting edge (11) most advanced external diameter, and dual cutting has reduced the resistance of drilling in-process, improves the drilling precision, has improved the life of cutter greatly, consequently the utility model discloses a structure can effectual improvement cutting edge's intensity, can guarantee processingquality again, has fine practicality.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the drawing, reference numeral 1 denotes a drilling portion, 11 denotes a first cutting edge, and 12 denotes a second cutting edge.
Detailed Description
A novel 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 first cutting edge 11 and the second cutting edge 12 are in arc line transition, and the size of the outer diameter of the tip of the first cutting edge 11 is larger than the size of the joint of the first cutting edge arc line and the second cutting edge 12.
The second cutting edge 12 has an outer diameter larger than that of the first cutting edge 11.
The utility model discloses a working process does: the drill is driven by the driving device to drill, firstly the first cutting edge 11 is in contact with a workpiece, as the outer diameter of the first cutting edge 11 is relatively small, the drilling resistance is relatively small, the first cutting edge 11 can smoothly center and drill the workpiece, and the second cutting edge 12 at the rear end of the first cutting edge 11 guides the workpiece to drill for the second time, so that the whole workpiece is completely machined.
Furthermore, the drill bit of the utility model is provided with drill bit cutting edges for double drilling, the outer diameter size of the first cutting edge at the front end is reduced by the arc line, the resistance in the drilling process is reduced by the drill bit for double drilling cutting, the centering and cutting are easy, the drilling precision is improved, and the service life of the cutter is greatly prolonged; therefore the utility model discloses a structure can effectual drilling efficiency and the life who improves the cutting edge, can guarantee processingquality again, has fine practicality.
Claims (1)
1. A new drill bit, characterized in that the drill bit comprises a front drilling part (1), 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);
dividing the drill tip into a first cutting edge (11) and a second cutting edge (12) by means of a circular arc;
the outer diameter of the second cutting edge (12) is larger than the outer diameter of the tip end of the first cutting edge (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822141655.7U CN210305887U (en) | 2018-12-20 | 2018-12-20 | Novel drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822141655.7U CN210305887U (en) | 2018-12-20 | 2018-12-20 | Novel drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210305887U true CN210305887U (en) | 2020-04-14 |
Family
ID=70121509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822141655.7U Active CN210305887U (en) | 2018-12-20 | 2018-12-20 | Novel drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210305887U (en) |
-
2018
- 2018-12-20 CN CN201822141655.7U patent/CN210305887U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |