CN204603390U - A kind of conic steps drill bit - Google Patents
A kind of conic steps drill bit Download PDFInfo
- Publication number
- CN204603390U CN204603390U CN201420847829.0U CN201420847829U CN204603390U CN 204603390 U CN204603390 U CN 204603390U CN 201420847829 U CN201420847829 U CN 201420847829U CN 204603390 U CN204603390 U CN 204603390U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- drillstock
- cylinder
- frustroconical
- ladder 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
- 230000006378 damage Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Ladders (AREA)
Abstract
The utility model discloses a kind of conic steps drill bit, comprise drill bit, drillstock and cone body, cone body comprises the some ladder sections connected successively from top to bottom, ladder section comprises the cylinder-shaped body and inverted frustroconical accessory body that set gradually from top to bottom, the central axis of inverted frustroconical accessory body and cylinder-shaped body is on same straight line, the inverted end face of frustroconical accessory body is connected with the bottom surface of cylinder-shaped body, and area equation, ladder section is provided with the tapped through hole of centrally axle, drill bit is provided with screwed hole, one end of drillstock is in order to connect clamping device, the other end is provided with screw thread, the screwed one end of drillstock is the some ladder sections of cross-under successively, its end is tightened against in screwed hole.Drill bit of the present utility model, drillstock and cone body are not integrated formed structures, and cone body is also be made up of some ladder sections simultaneously, when partial destruction, only need change corresponding part, save resource.
Description
Technical field
The utility model relates to a kind of drill bit, is specifically related to a kind of conic steps drill bit.
Background technology
Conic steps drill bit a kind ofly uses same combination tool drill bit one-pass being processed different pore size circular hole from small to large.This conic steps drill bit generally comprises drill bit, cone body and drillstock, three in one is shaping, in production at ordinary times, drill bit and tapered cylinders are easy to damage, but this damage partial destruction often, just need integral replacing after damage, this causes very large waste to a certain extent.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of conic steps drill bit.
In order to achieve the above object, the technical scheme that the utility model adopts is:
A kind of conic steps drill bit, comprises drill bit, drillstock and cone body, described cone body comprises the some ladder sections connected successively from top to bottom, described ladder section comprises the cylinder-shaped body and inverted frustroconical accessory body that set gradually from top to bottom, the central axis of described inverted frustroconical accessory body and cylinder-shaped body is on same straight line, the described inverted end face of frustroconical accessory body is connected with the bottom surface of cylinder-shaped body, and area equation, described ladder section is provided with the tapped through hole of centrally axle, described drill bit is provided with screwed hole, one end of described drillstock is in order to connect clamping device, the other end is provided with screw thread, the screwed one end of described drillstock is the some ladder sections of cross-under successively, its end is tightened against in screwed hole.
Described inverted frustroconical accessory body and cylinder-shaped body one-body molded.
The top surface area of the ladder section that the base area of single order bench is adjacent is equal.
The sidewall of described drill bit and ladder section is provided with groove vertically.
The width of described groove increases from the bottom up successively.
Groove on described drill bit and ladder section groove be mutually connected one into strips.
The beneficial effect that the utility model reaches: drill bit of the present utility model, drillstock and cone body are not integrated formed structures, cone body is also be made up of some ladder sections simultaneously, when partial destruction, only need change corresponding part, save resource.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the structural representation of ladder section.
Fig. 3 is the structural representation of drill bit
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1,2 and 3, a kind of conic steps drill bit, comprises drill bit 2, drillstock 3 and cone body.
Cone body comprises the some ladder sections 1 connected successively from top to bottom, ladder section 1 comprises the cylinder-shaped body 4 and inverted frustroconical accessory body 5 that set gradually from top to bottom, inverted frustroconical accessory body 5 and cylinder-shaped body 4 one-body molded, the central axis of inverted frustroconical accessory body 5 and cylinder-shaped body 4 is on same straight line, the end face of frustroconical accessory body is connected with the bottom surface of cylinder-shaped body 4, and area equation, the top surface area of the ladder section 1 that the base area of single order bench 1 is adjacent is equal, ladder section 1 is provided with the tapped through hole 6 of centrally axle, drill bit 2 is provided with screwed hole 8, one end of drillstock 3 is in order to connect clamping device, the other end is provided with screw thread, the screwed one end of drillstock 3 is the some ladder sections 1 of cross-under successively, its end is tightened against in screwed hole 8.
The sidewall of above-mentioned drill bit 2 and ladder section 1 is provided with groove 7 vertically, the width of groove 7 increases from the bottom up successively, the groove 7 on drill bit 2 and ladder section 1 groove 7 be mutually connected one into strips.
Above-mentioned conic steps drill bit 2, when assembling, only needing on drillstock 3, to be screwed into ladder section 1 successively, finally tightening with in screwed hole 8 by drillstock 3 end, when partial destruction, only need change corresponding part, save resource.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and distortion, these improve and distortion also should be considered as protection domain of the present utility model.
Claims (6)
1. a conic steps drill bit, is characterized in that: comprise drill bit, drillstock and cone body, described cone body comprises the some ladder sections connected successively from top to bottom, described ladder section comprises the cylinder-shaped body and inverted frustroconical accessory body that set gradually from top to bottom, the central axis of described inverted frustroconical accessory body and cylinder-shaped body is on same straight line, the described inverted end face of frustroconical accessory body is connected with the bottom surface of cylinder-shaped body, and area equation, described ladder section is provided with the tapped through hole of centrally axle, described drill bit is provided with screwed hole, one end of described drillstock is in order to connect clamping device, the other end is provided with screw thread, the screwed one end of described drillstock is the some ladder sections of cross-under successively, its end is tightened against in screwed hole.
2. a kind of conic steps drill bit according to claim 1, is characterized in that: described inverted frustroconical accessory body and cylinder-shaped body one-body molded.
3. a kind of conic steps drill bit according to claim 1, is characterized in that: the top surface area of the ladder section that the base area of single order bench is adjacent is equal.
4. a kind of conic steps drill bit according to claim 1, is characterized in that: the sidewall of described drill bit and ladder section is provided with groove vertically.
5. a kind of conic steps drill bit according to claim 4, is characterized in that: the width of described groove increases from the bottom up successively.
6. a kind of conic steps drill bit according to claim 5, is characterized in that: the groove on described drill bit and ladder section groove be mutually connected one into strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420847829.0U CN204603390U (en) | 2014-12-29 | 2014-12-29 | A kind of conic steps drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420847829.0U CN204603390U (en) | 2014-12-29 | 2014-12-29 | A kind of conic steps drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204603390U true CN204603390U (en) | 2015-09-02 |
Family
ID=53955976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420847829.0U Expired - Fee Related CN204603390U (en) | 2014-12-29 | 2014-12-29 | A kind of conic steps drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204603390U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646728A (en) * | 2014-12-29 | 2015-05-27 | 苏州用朴合金工具有限公司 | Tapered step drill |
-
2014
- 2014-12-29 CN CN201420847829.0U patent/CN204603390U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646728A (en) * | 2014-12-29 | 2015-05-27 | 苏州用朴合金工具有限公司 | Tapered step drill |
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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: 20150902 Termination date: 20151229 |
|
| EXPY | Termination of patent right or utility model |