CN104551112A - Hard alloy steel taper drill bit - Google Patents
Hard alloy steel taper drill bit Download PDFInfo
- Publication number
- CN104551112A CN104551112A CN201410786396.7A CN201410786396A CN104551112A CN 104551112 A CN104551112 A CN 104551112A CN 201410786396 A CN201410786396 A CN 201410786396A CN 104551112 A CN104551112 A CN 104551112A
- Authority
- CN
- China
- Prior art keywords
- alloy steel
- hard alloy
- drill bit
- tapering
- tapering drill
- 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
- B23B51/0081—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
- B23B2251/04—Angles, e.g. cutting angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/04—Angles, e.g. cutting angles
- B23B2251/043—Helix angles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention relates to a hard alloy steel taper drill bit which comprises a handle part and a working part and is characterized in that the working part is of a cone shape. According to the hard alloy steel taper drill bit disclosed by the design, a taper hole is formed by machining for once, machining efficiency is high, labor intensity is low and meanwhile, the requirement of places with the high structural accuracy requirement can be met.
Description
Technical field
The design relates to a kind of hard alloy steel tapering drill bit, belongs to machining technique field.
Background technology
In the processing of workpiece, run into the processing of taper hole sometimes, many times, first process a cylindrical hole often, then, by artificial tapering, form taper hole; This is not only very high to the technical requirement of processing staff, and labour intensity is large simultaneously, and working (machining) efficiency is low; Require higher occasion at structure precision, often will, through reprocessabilty, sometimes, even cause workpiece to scrap.
Summary of the invention
For the deficiencies in the prior art, the object of the design is to provide a kind of hard alloy steel tapering drill bit, and taper hole time processing is shaping, and working (machining) efficiency is high, and labour intensity is little, meanwhile, can meet the occasion that structure precision requirement is higher.
For achieving the above object, the design is realized by following technological means:
A kind of hard alloy steel tapering drill bit, comprises shank and working portion, it is characterized in that: described working portion is taper.
Further:
Described a kind of hard alloy steel tapering drill bit, is characterized in that: the tapering of described taper is 15 °.
Described a kind of hard alloy steel tapering drill bit, is characterized in that: described first bit cutting part drift angle is 118, and chisel edge angle is 50 °, and relief angle is 20 °.
Described a kind of hard alloy steel tapering drill bit, is characterized in that: the helical angle of described working portion is 30 °.
Described a kind of hard alloy steel tapering drill bit, is characterized in that: the material of described a kind of hard alloy steel tapering drill bit is hard alloy steel.
Described a kind of hard alloy steel tapering drill bit, is characterized in that: described hard alloy steel take tungsten-carbide powder as matrix, makes binding agent form through pressurization, sintering with cobalt powder.
The invention has the beneficial effects as follows: a kind of hard alloy steel tapering drill bit of the design, taper hole time processing is shaping, and working (machining) efficiency is high, and labour intensity is little, meanwhile, can meet the occasion that structure precision requirement is higher.
Accompanying drawing explanation
Fig. 1 is structural representation.
Detailed description of the invention
Below in conjunction with Figure of description, design is further described.
A kind of hard alloy steel tapering drill bit, comprises shank and working portion, it is characterized in that: described working portion is taper.
Further:
Described a kind of hard alloy steel tapering drill bit, is characterized in that: the tapering of described taper is 15 °.
Described a kind of hard alloy steel tapering drill bit, is characterized in that: described first bit cutting part drift angle is 118, and chisel edge angle is 50 °, and relief angle is 20 °.
Described a kind of hard alloy steel tapering drill bit, is characterized in that: the helical angle of described working portion is 30 °.
Described a kind of hard alloy steel tapering drill bit, is characterized in that: the material of described a kind of hard alloy steel tapering drill bit is hard alloy steel.
Described a kind of hard alloy steel tapering drill bit, is characterized in that: described hard alloy steel take tungsten-carbide powder as matrix, makes binding agent form through pressurization, sintering with cobalt powder.
More than show and describe the general principle of the design, principal character and advantage.The technical staff of the industry should understand; the design is not restricted to the described embodiments; the principle that the design is just described described in above-described embodiment and description; under the prerequisite not departing from the design's spirit and scope; the design also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the design.The claimed scope of the design is defined by appending claims and equivalent thereof.
Claims (6)
1. a hard alloy steel tapering drill bit, comprises shank and working portion, it is characterized in that: described working portion is taper.
2. a kind of hard alloy steel tapering drill bit as claimed in claim 1, is characterized in that: the tapering of described taper is 15 °.
3. a kind of hard alloy steel tapering drill bit as claimed in claim 1, is characterized in that: described first bit cutting part drift angle is 118, and chisel edge angle is 50 °, and relief angle is 20 °.
4. a kind of hard alloy steel tapering drill bit as claimed in claim 1, is characterized in that: the helical angle of described working portion is 30 °.
5. a kind of hard alloy steel tapering drill bit as claimed in claim 1, is characterized in that: the material of described a kind of hard alloy steel tapering drill bit is hard alloy steel.
6. a kind of hard alloy steel tapering drill bit as claimed in claim 5, is characterized in that: described hard alloy steel take tungsten-carbide powder as matrix, makes binding agent form through pressurization, sintering with cobalt powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410786396.7A CN104551112A (en) | 2014-12-18 | 2014-12-18 | Hard alloy steel taper drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410786396.7A CN104551112A (en) | 2014-12-18 | 2014-12-18 | Hard alloy steel taper drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104551112A true CN104551112A (en) | 2015-04-29 |
Family
ID=53068766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410786396.7A Pending CN104551112A (en) | 2014-12-18 | 2014-12-18 | Hard alloy steel taper drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104551112A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530744A (en) * | 2018-11-28 | 2019-03-29 | 上海东鼎钢结构有限公司 | Fire-fighting spraying head production method peculiar to vessel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3645642A (en) * | 1970-03-10 | 1972-02-29 | George Koslow | Taper drill |
| JPS52156494A (en) * | 1976-06-22 | 1977-12-26 | Toshiba Corp | Drill for working taper hole |
| CN202239817U (en) * | 2011-06-30 | 2012-05-30 | 无锡雨田精密工具有限公司 | Three-edge tapered twist drill |
| CN102847993A (en) * | 2011-06-30 | 2013-01-02 | 无锡雨田精密工具有限公司 | Three-edge taper twist drill |
| CN102974871A (en) * | 2012-11-27 | 2013-03-20 | 深圳市金洲精工科技股份有限公司 | Substrate for processing cutter and manufacturing method of substrate and drill bit using substrate |
| CN204565228U (en) * | 2014-12-18 | 2015-08-19 | 苏州欧美克合金工具有限公司 | A kind of hard alloy steel tapering drill bit |
-
2014
- 2014-12-18 CN CN201410786396.7A patent/CN104551112A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3645642A (en) * | 1970-03-10 | 1972-02-29 | George Koslow | Taper drill |
| JPS52156494A (en) * | 1976-06-22 | 1977-12-26 | Toshiba Corp | Drill for working taper hole |
| CN202239817U (en) * | 2011-06-30 | 2012-05-30 | 无锡雨田精密工具有限公司 | Three-edge tapered twist drill |
| CN102847993A (en) * | 2011-06-30 | 2013-01-02 | 无锡雨田精密工具有限公司 | Three-edge taper twist drill |
| CN102974871A (en) * | 2012-11-27 | 2013-03-20 | 深圳市金洲精工科技股份有限公司 | Substrate for processing cutter and manufacturing method of substrate and drill bit using substrate |
| CN204565228U (en) * | 2014-12-18 | 2015-08-19 | 苏州欧美克合金工具有限公司 | A kind of hard alloy steel tapering drill bit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530744A (en) * | 2018-11-28 | 2019-03-29 | 上海东鼎钢结构有限公司 | Fire-fighting spraying head production method peculiar to vessel |
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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: 20150429 |
|
| RJ01 | Rejection of invention patent application after publication |