CN104416202A - Multi-sectional drill bit - Google Patents
Multi-sectional drill bit Download PDFInfo
- Publication number
- CN104416202A CN104416202A CN201310388953.5A CN201310388953A CN104416202A CN 104416202 A CN104416202 A CN 104416202A CN 201310388953 A CN201310388953 A CN 201310388953A CN 104416202 A CN104416202 A CN 104416202A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- main
- diameter
- sectional
- 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.)
- 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
- B23B51/12—Adapters for drills or chucks; Tapered sleeves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/24—Overall form of drilling tools
- B23B2251/241—Cross sections of the diameter of the drill
- B23B2251/242—Cross sections of the diameter of the drill increasing in a direction towards the shank from the tool tip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/0411—Drills for trepanning with stepped tubular cutting bodies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention aims at providing a multi-sectional drill bit. The multi-sectional drill bit comprises a drilling handle for clamping, and a drill bit body; the drill bit body comprises a main drill bit and a secondary drill bit, wherein the main drill bit is arranged at the front end of the secondary drill bit; the diameter of the main drill bit is less than the diameter of the secondary drill bit. According to the multi-sectional drill bit, the main drill bit and the secondary drill bit are arranged to drill the material at a time to form a stepped hole, and therefore, the drilling error caused by secondary processing can be avoided, the working efficiency is raised, the defective products are decreased, and moreover, the wearing of the drill bit is reduced, and as a result, the service life of the drill bit is prolonged.
Description
Technical field
The present invention relates to a kind of drill bit, particularly relating to a kind of drill bit segmented can the Multi-section drill bit of rig floor rank nibs.
Background technology
Common spiral bit extensive use many decades, but under various different service condition, it exposes some shortcomings and problem gradually, when the hole of rig floor stepwise, need to use the drill bit of different-diameter repeatedly to hole, but the not easily centring when boring, easily causes the deviation in hole.Therefore, repeatedly working when solving rig floor rank nibs causes the problem of error just to seem particularly important.
Summary of the invention
The invention provides a kind of drill bit segmented can the Multi-section drill bit of rig floor rank nibs, by arranging the drill bit of different-diameter on same drillstock, once getting out step nibs, repeatedly working and causing the problem of error when solving rig floor rank nibs.
The object of this invention is to provide a kind of Multi-section drill bit, comprise the drillstock for clamping and drill bit, described drill bit comprises main drill bit and secondary drill bit, and described main drill bit is arranged on secondary chisel edge, and the diameter of described main drill bit is less than the diameter of secondary drill bit.
Further improvement is: described drillstock is provided with antiskid thread, and described antiskid thread is double helix screw thread.
Further improvement is: be provided with suspension groove above described antiskid thread.
Beneficial effect of the present invention: by arranging main drill bit and secondary drill bit, carries out disposablely being drilled to mesa-shaped hole to material, avoids the bore error that secondary operations causes, increase work efficiency, reduce the generation of defective products, and reduce the wearing and tearing of drill bit, increase the service life of drill bit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein: 1-drillstock, the main drill bit of 2-, the secondary drill bit of 3-, 4-antiskid thread, 5-suspension groove.
Detailed description of the invention
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, and this embodiment only for explaining the present invention, does not form limiting the scope of the present invention.
As shown in Figure 1, present embodiments provide a kind of Multi-section drill bit, comprise the drillstock 1 for clamping and drill bit, described drill bit comprises main drill bit 2 and secondary drill bit 3, and described main drill bit 2 is arranged on secondary drill bit 3 front end, and the diameter of described main drill bit 2 is less than the diameter of secondary drill bit.Described drillstock 1 is provided with antiskid thread 4, and described antiskid thread 4 is double helix screw thread.Suspension groove 5 is provided with above described antiskid thread 4.By arranging main drill bit 2 and secondary drill bit 3, carrying out disposablely being drilled to mesa-shaped hole to material, avoiding the bore error that secondary operations causes, increase work efficiency, reduce the generation of defective products, and reduce the wearing and tearing of drill bit, increase the service life of drill bit.
Claims (3)
1. a Multi-section drill bit, comprise the drillstock (1) for clamping and drill bit, it is characterized in that: described drill bit comprises main drill bit (2) and secondary drill bit (3), described main drill bit (2) is arranged on secondary drill bit (3) front end, and the diameter of described main drill bit (2) is less than the diameter of secondary drill bit.
2. Multi-section drill bit as claimed in claim 1, is characterized in that: the quantity of described secondary drill bit (3) at least
Multi-section drill bit as claimed in claim 1, is characterized in that: described drillstock (1) is provided with antiskid thread (4), and described antiskid thread (4) is double helix screw thread.
3. Multi-section drill bit as claimed in claim 2, is characterized in that: described antiskid thread (4) top is provided with suspension groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388953.5A CN104416202A (en) | 2013-09-02 | 2013-09-02 | Multi-sectional drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388953.5A CN104416202A (en) | 2013-09-02 | 2013-09-02 | Multi-sectional drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104416202A true CN104416202A (en) | 2015-03-18 |
Family
ID=52966943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310388953.5A Pending CN104416202A (en) | 2013-09-02 | 2013-09-02 | Multi-sectional drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104416202A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774618A (en) * | 2020-07-03 | 2020-10-16 | 台州市英络克工具有限公司 | Step drill bit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2303698Y (en) * | 1997-08-30 | 1999-01-13 | 由光宇 | Stepped twist drill |
| CN201823976U (en) * | 2010-08-30 | 2011-05-11 | 濮春辉 | Twist drill |
| CN102837041A (en) * | 2011-06-21 | 2012-12-26 | 无锡雨田精密工具有限公司 | Step twist drill |
| CN203610737U (en) * | 2013-09-02 | 2014-05-28 | 天工爱和特钢有限公司 | Multistage drill bit |
-
2013
- 2013-09-02 CN CN201310388953.5A patent/CN104416202A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2303698Y (en) * | 1997-08-30 | 1999-01-13 | 由光宇 | Stepped twist drill |
| CN201823976U (en) * | 2010-08-30 | 2011-05-11 | 濮春辉 | Twist drill |
| CN102837041A (en) * | 2011-06-21 | 2012-12-26 | 无锡雨田精密工具有限公司 | Step twist drill |
| CN203610737U (en) * | 2013-09-02 | 2014-05-28 | 天工爱和特钢有限公司 | Multistage drill bit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774618A (en) * | 2020-07-03 | 2020-10-16 | 台州市英络克工具有限公司 | Step drill bit |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150318 |