CN104646728A - Tapered step drill - Google Patents
Tapered step drill Download PDFInfo
- Publication number
- CN104646728A CN104646728A CN201410831300.4A CN201410831300A CN104646728A CN 104646728 A CN104646728 A CN 104646728A CN 201410831300 A CN201410831300 A CN 201410831300A CN 104646728 A CN104646728 A CN 104646728A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- drill
- ladder section
- cylinder
- tapered
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/009—Stepped drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/0081—Conical drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/02—Connections between shanks and removable cutting heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2265/00—Details of general geometric configurations
- B23B2265/08—Conical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses a tapered step drill which comprises a drill, a drill handle and a tapered main body, wherein the tapered main body comprises a plurality of step sections which are connected in sequence from top to bottom; each step section comprises cylindrical main bodies and an inverted truncated conical secondary body, the cylindrical main bodies are arranged in sequence from top to bottom, central axes of the inverted truncated conical secondary body and the cylindrical main bodies are on the same straight line, the top surface of the inverted truncated conical secondary body is connected with the bottom surfaces of the cylindrical main bodies, the areas of the top surface of the inverted truncated conical secondary body and the bottom surfaces of the cylindrical main bodies are equal, thread through holes along the central axes are formed in the step sections, a threaded hole is formed in the drill, one end of the drill handle is used for connecting a clamping device, threads are formed on the other end of the drill handle, one end, which is provided with the threads, of the drill handle penetrates through the plurality of step sections in sequence, and the end of the drill handle is screwed in the threaded hole. According to the tapered step drill, the drill, the drill handle and the tapered main body are not integrated, additionally, the tapered main body is composed of the plurality of step sections, and when partial step sections are damaged, only the corresponding part needs to be replaced, so that resources are saved.
Description
Technical field
The present invention relates to a kind of drill bit, be 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.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of conic steps drill bit.
In order to achieve the above object, the technical solution adopted in the present invention 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 present invention reaches: drill bit of the present invention, 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 structural representation of the present invention.
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 invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention 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 the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
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 |
|---|---|---|---|
| CN201410831300.4A CN104646728A (en) | 2014-12-29 | 2014-12-29 | Tapered step drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410831300.4A CN104646728A (en) | 2014-12-29 | 2014-12-29 | Tapered step drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104646728A true CN104646728A (en) | 2015-05-27 |
Family
ID=53238647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410831300.4A Pending CN104646728A (en) | 2014-12-29 | 2014-12-29 | Tapered step drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104646728A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722204A (en) * | 2013-12-05 | 2014-04-16 | 周世军 | Method for producing stepped taper-hole barrel |
| CN106914641A (en) * | 2017-03-24 | 2017-07-04 | 舟山市帝旺机电有限公司 | Processing unit (plant) for making stairstepping taper hole machine barrel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561812A (en) * | 1981-10-12 | 1985-12-31 | Linden Karl H | Extensible drill |
| CN2637050Y (en) * | 2003-08-01 | 2004-09-01 | 扬州江正切削工具有限公司 | Drilling rig |
| CN2829951Y (en) * | 2005-09-13 | 2006-10-25 | 上海华灵工具厂 | Step drill |
| EP2283957A1 (en) * | 2009-08-11 | 2011-02-16 | Combined Products Co. No. 1, Inc. | Adjustable step drill bit |
| US8388280B1 (en) * | 2007-10-04 | 2013-03-05 | Orlo Ison | Step drill bit |
| WO2014167049A1 (en) * | 2013-04-12 | 2014-10-16 | Hilti Aktiengesellschaft | Stepper |
| CN204603390U (en) * | 2014-12-29 | 2015-09-02 | 苏州用朴合金工具有限公司 | A kind of conic steps drill bit |
-
2014
- 2014-12-29 CN CN201410831300.4A patent/CN104646728A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561812A (en) * | 1981-10-12 | 1985-12-31 | Linden Karl H | Extensible drill |
| CN2637050Y (en) * | 2003-08-01 | 2004-09-01 | 扬州江正切削工具有限公司 | Drilling rig |
| CN2829951Y (en) * | 2005-09-13 | 2006-10-25 | 上海华灵工具厂 | Step drill |
| US8388280B1 (en) * | 2007-10-04 | 2013-03-05 | Orlo Ison | Step drill bit |
| EP2283957A1 (en) * | 2009-08-11 | 2011-02-16 | Combined Products Co. No. 1, Inc. | Adjustable step drill bit |
| WO2014167049A1 (en) * | 2013-04-12 | 2014-10-16 | Hilti Aktiengesellschaft | Stepper |
| CN204603390U (en) * | 2014-12-29 | 2015-09-02 | 苏州用朴合金工具有限公司 | A kind of conic steps drill bit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722204A (en) * | 2013-12-05 | 2014-04-16 | 周世军 | Method for producing stepped taper-hole barrel |
| CN103722204B (en) * | 2013-12-05 | 2017-05-10 | 舟山市帝旺机电有限公司 | Method for producing stepped taper-hole barrel |
| CN106914641A (en) * | 2017-03-24 | 2017-07-04 | 舟山市帝旺机电有限公司 | Processing unit (plant) for making stairstepping taper hole machine barrel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150527 |
|
| RJ01 | Rejection of invention patent application after publication |