CN202490959U - Drill bit - Google Patents
Drill bit Download PDFInfo
- Publication number
- CN202490959U CN202490959U CN2012200312921U CN201220031292U CN202490959U CN 202490959 U CN202490959 U CN 202490959U CN 2012200312921 U CN2012200312921 U CN 2012200312921U CN 201220031292 U CN201220031292 U CN 201220031292U CN 202490959 U CN202490959 U CN 202490959U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- right cylinder
- cylinder section
- tool rest
- section
- 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
Links
- 238000005553 drilling Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000035515 penetration Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Drilling Tools (AREA)
Abstract
The utility model discloses a drill bit which comprises a tool apron, a hilt and a tool bit. The tool bit comprises a cone pillar section, a first straight pillar section and a second straight pillar section, wherein the front end of the second straight pillar section is formed into a tool nose. The drill bit has the advantages of being simple in structure, easy to achieve, and capable of effectively enhancing stability when the tool bit cuts in and improving the drilling speed of the drill bit.
Description
Technical field
The utility model relates to machinery and uses the drill bit field, is specially a kind of drill bit.
Background technology
Mechanical part commonly used in the drill bit machinery industry, it is to go out through hole or blind hole in order to drilling on the solid material, and can be to the cutter of existing hole reaming.Drill bit is made up of tool rest, handle of a knife, cutter head, and the drill bit structure of prior art is simple, and axial incision power is unstable during boring, and penetration rate is slower.
The utility model content
The utility model purpose provides a kind of drill bit, to solve the prior art drill bit shaft to incision power problem of unstable.
In order to achieve the above object, the technical scheme that the utility model adopted is:
A kind of drill bit; Include tool rest, be connected the tool rest rear end handle of a knife, be connected the cutter head of tool rest front end; It is characterized in that: said cutter head comprises the awl shell of column, the first right cylinder section that is connected the conical section front end that are connected the tool rest front end, be connected the first right cylinder section front end and with respect to the second right cylinder section of the first right cylinder section undergauge, the said second right cylinder section front end is shaped to point of a knife.
Described a kind of drill bit is characterized in that: the front end sidepiece of the said first right cylinder section forms chamfered section.
The utility model is simple in structure; Be easy to realize that cutter head is divided into awl shell of column, the first right cylinder section and the second right cylinder section, the awl shell of column through cutter head is connected with tool rest; Stability in the time of effectively strengthening the cutter head incision; During the chamfered section of the first right cylinder section sidepiece moulding simultaneously during the cutter head incision power concentrate on the center, the stability when further having strengthened the cutter head incision has improved the penetration rate of drill bit.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
As shown in Figure 1.A kind of drill bit; Include tool rest 1, be connected tool rest 1 rear end handle of a knife 2, be connected the cutter head of tool rest 1 front end; Cutter head comprises the awl shell of column 3 that is connected the tool rest front end, be connected conical section 3 front ends the first right cylinder section 4, be connected the first right cylinder section, 4 front ends and be shaped to point of a knife 6 with respect to the second right cylinder section, 5, the second right cylinder sections, 5 front ends of the first right cylinder section, 4 undergauges.The front end sidepiece of the first right cylinder section 4 forms chamfered section 7.
Claims (2)
1. drill bit; Include tool rest, be connected the tool rest rear end handle of a knife, be connected the cutter head of tool rest front end; It is characterized in that: said cutter head comprises the awl shell of column, the first right cylinder section that is connected the conical section front end that are connected the tool rest front end, be connected the first right cylinder section front end and with respect to the second right cylinder section of the first right cylinder section undergauge, the said second right cylinder section front end is shaped to point of a knife.
2. a kind of drill bit according to claim 1 is characterized in that: the front end sidepiece of the said first right cylinder section forms chamfered section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200312921U CN202490959U (en) | 2012-02-01 | 2012-02-01 | Drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200312921U CN202490959U (en) | 2012-02-01 | 2012-02-01 | Drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202490959U true CN202490959U (en) | 2012-10-17 |
Family
ID=46997202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200312921U Expired - Fee Related CN202490959U (en) | 2012-02-01 | 2012-02-01 | Drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202490959U (en) |
-
2012
- 2012-02-01 CN CN2012200312921U patent/CN202490959U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20130201 |