CN203426504U - Drilling head - Google Patents
Drilling head Download PDFInfo
- Publication number
- CN203426504U CN203426504U CN201320390040.2U CN201320390040U CN203426504U CN 203426504 U CN203426504 U CN 203426504U CN 201320390040 U CN201320390040 U CN 201320390040U CN 203426504 U CN203426504 U CN 203426504U
- Authority
- CN
- China
- Prior art keywords
- drilling head
- drill bit
- cutting edges
- cutting
- cutting edge
- 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 machining tool, in particular to a drilling head for rough machining. The drilling head comprises a drilling rod and a drilling head body. Cutting edges are arranged at the front end of the drilling head body, the drilling head body is provided with a chip groove, the number of the cutting edges is two, and the chip groove is formed between the rotation tracks of the cutting edges. The drilling head is characterized in that bullet-shaped alloy heads are fixed to the centers of the cutting edges. The drilling head can effectively reduce abrasion of the cutting edges and prolong the service life of cutters.
Description
Technical field
The utility model relates to a kind of machining tool, particularly a kind of roughing drill bit.
Background technology
Drill bit is to go out through hole or blind hole in order to drilling on solid material, and cutter that can be to the reaming of existing hole.Drill bit can be divided into roughing with and fining-off use, the drill bit that roughing is used generally has very large cutting output, understands and cause very large wearing and tearing to cutting edge like this in the process of cutting.
Summary of the invention
The utility model technical issues that need to address are to provide the drill bit that a kind of roughing of effective minimizing cutting edge wearing and tearing is used.
For solving above-mentioned technical problem, drill bit of the present utility model comprises drilling rod and drill body, described drill body front end is provided with cutting edge, on described drill body, have chip area, totally two of described cutting edges, between cutting blade rotational trajectory, form chip area, the center of described cutting edge is fixed with warhead shape alloy head.
Described drilling rod outer surface is provided with the frosted layer that increases frictional force.
Adopt after said structure, because the center of cutting edge is fixed with warhead shape alloy head, when cutting, drill bit is in High Rotation Speed state, and alloy head can carry out preliminary cutting to processing work, then processes required shape by cutting edge.Can effectively reduce the cutting output of cutting edge like this, reduce the wearing and tearing that processing work causes cutting edge.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model drill bit.
Fig. 2 is the cutting end view of the utility model drill bit.
In figure: 1 is drilling rod, 2 is drill body, and 3 is cutting edge, and 4 is chip area, and 5 is alloy head, and 6 is frosted layer
The specific embodiment
Drill bit as depicted in figs. 1 and 2, comprises drilling rod 1 and drill body 2, and described drill body front end is provided with cutting edge 3, has chip area 4 on described drill body.Totally two of described cutting edges, in a center of symmetry about the rotary middle spindle of drill bit.Between two cutting blade rotational trajectories, form chip area 4, during processing work, the material bits that cutting produces are discharged from chip area 4.In order to reduce the cutting output of cutting edge 3, reduce the wearing and tearing of processing work to cutting edge, at the center of described cutting edge 3, be fixed with warhead shape alloy head 5, it is in order to make the cutting of alloy head more easy that the shape of alloy head 5 is designed to warhead shape.Because drill bit of the present utility model is for roughing, so do not need to be processed into the shape of appointment, only need to carry out preliminary processing to processing work.The alteration of form that 5 pairs of processing works of alloy head cause so just can not have a great impact, and can process more accurately by fining-off drill bit.
Described drilling rod 1 outer surface is provided with the frosted layer 6 that increases frictional force, and frosted layer 6 can increase the frictional force of drill bit and rotating shaft, makes the more firm of drill bit clamping.
Claims (2)
1. a drill bit, comprise drilling rod and drill body, described drill body front end is provided with cutting edge, on described drill body, have chip area, totally two of described cutting edges, between cutting blade rotational trajectory, form chip area, it is characterized in that: the center of described cutting edge is fixed with warhead shape alloy head.
2. according to drill bit claimed in claim 1, it is characterized in that: described drilling rod outer surface is provided with the frosted layer that increases frictional force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320390040.2U CN203426504U (en) | 2013-06-30 | 2013-06-30 | Drilling head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320390040.2U CN203426504U (en) | 2013-06-30 | 2013-06-30 | Drilling head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203426504U true CN203426504U (en) | 2014-02-12 |
Family
ID=50055566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320390040.2U Expired - Fee Related CN203426504U (en) | 2013-06-30 | 2013-06-30 | Drilling head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203426504U (en) |
-
2013
- 2013-06-30 CN CN201320390040.2U patent/CN203426504U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20140630 |
|
| EXPY | Termination of patent right or utility model |