CN103692000A - Drilling tool for forming R type center hole by one step - Google Patents
Drilling tool for forming R type center hole by one step Download PDFInfo
- Publication number
- CN103692000A CN103692000A CN201410009854.6A CN201410009854A CN103692000A CN 103692000 A CN103692000 A CN 103692000A CN 201410009854 A CN201410009854 A CN 201410009854A CN 103692000 A CN103692000 A CN 103692000A
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- China
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- type
- drilling tool
- forming
- center hole
- centre bore
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- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/0063—Centerdrills
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses a drilling tool for forming an R type center hole by one step. The drilling tool comprises a tool main body, wherein an R type chip cutting edge and a chip groove are arranged on the middle part at one end of the tool main body; a vertex angle is formed on the top of one end of the tool main body; and the chip groove is set into spiral type. The drilling tool disclosed by the invention has characteristics of being quick in chip cutting, smooth in chip removal, high in machining dimension precision and capable of forming by one step, can be widely applied to machining a center hole of a gearbox input and output gear shaft of a high-grade car gearbox with high precision requirements, and the product quality is greatly improved.
Description
Technical field
The invention belongs to a kind of instrument of the input and output gear axle for producing high-grade sedan gear-box, specifically belong to a kind of drilling tool of disposal molding R type centre bore.
Background technology
High-grade car gearbox (B6 input and output gear axle) required precision is high, its main position that guarantees precision is centre bore, B6 output gear shaft two ends are nonstandard large R type centre bore, and malalignment requires to reach 0.02mm, and the inside surface roughness of R type centre bore requires to reach Ra1.6.At present, during the processing B6 of manufacturing enterprise output input gear axle, its processing method is most adopts substep on lathe to process, there is the shortcoming at the bottom of long processing time, time-consuming, work efficiency, and the uniformity of machining accuracy and roughness and R type centre bore is all difficult to reach user's specification requirement, seriously restricts enterprise development.
Summary of the invention
The drilling tool that the object of the present invention is to provide the disposal molding R type centre bore that a kind of operating efficiency is high, chip removal is smooth and easy, accurate to dimension is high, the centre bore inside surface roughness of this tool sharpening is bright and clean, improves the quality of products greatly.
For achieving the above object, the drilling tool of disposal molding R type centre bore of the present invention, comprises cutter body, and the middle part, one end of described cutter body is provided with R type smear metal cutting edge and chip area, and top, cutter body one end is provided with drift angle.
Described chip area is set to screw type.
In technique scheme, by the middle part, one end at cutter body, be provided with R type smear metal cutting edge and chip area, realize one-shot forming, smear metal speed is fast, accurate to dimension is high object, and centre bore inside surface roughness is bright and clean, effectively increases work efficiency and product quality.
Further, described chip area is set to screw type, and when the present invention is worked, chip removal is more smooth and easy, improves equally work efficiency.
The present invention has following characteristics and advantage:
1, there is high hardness high toughness and high wear resistance;
2, by the appropriate design of chip area, realize chip removal smooth and easy
,roughness and precision meet specification requirement.
3, smear metal speed is fast, and accurate to dimension is high, and centre bore inside surface roughness is bright and clean, has improved greatly work efficiency, promoting enterprise development better.
Accompanying drawing explanation
Fig. 1 is the drilling tool structure schematic diagram of disposal molding R type centre bore of the present invention;
Fig. 2 is the manuscript of the present invention while working.
The specific embodiment
Below in conjunction with accompanying drawing, the drilling tool of disposal molding R type centre bore of the present invention is described in further detail.
From Fig. 1, Fig. 2, the drilling tool of disposal molding R type centre bore of the present invention, comprises cutter body 1, and the middle part, one end of described cutter body 1 is provided with R type smear metal cutting edge 2 and chip area 3, and cutter body 1 top, one end is provided with drift angle smear metal cutting edge 4.
The technology of the present embodiment is mainly solved by the following technical programs: by the middle part, one end at cutter body 1, be provided with R type smear metal cutting edge 2 and chip area 3, realize that smear metal speed is fast, accurate to dimension is high, one-time formed object, thereby improve product properties.
In the present embodiment, described cutter body 1 selects carbide alloy to make, and R type smear metal cutting edge 2 adopts spray coating alloy, has high rigidity, high tenacity, high wear resistance.Described chip area 3 is set to screw type, and matches with drift angle 4 and R type smear metal cutting edge 2, and chip removal is more smooth and easy, makes the roughness of centre bore and precision reach specification requirement, and improves work efficiency.
Claims (2)
1. the drilling tool of a disposal molding R type centre bore, it is characterized in that: comprise cutter body (1), the middle part, one end of described cutter body (1) is provided with R type smear metal cutting edge (2) and chip area (3), and cutter body (1) top, one end is provided with drift angle (4).
2. the drilling tool of disposal molding R type centre bore according to claim 1, is characterized in that: described chip area (3) is set to screw type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009854.6A CN103692000A (en) | 2014-01-09 | 2014-01-09 | Drilling tool for forming R type center hole by one step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009854.6A CN103692000A (en) | 2014-01-09 | 2014-01-09 | Drilling tool for forming R type center hole by one step |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103692000A true CN103692000A (en) | 2014-04-02 |
Family
ID=50353752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410009854.6A Pending CN103692000A (en) | 2014-01-09 | 2014-01-09 | Drilling tool for forming R type center hole by one step |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103692000A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60104604A (en) * | 1983-11-14 | 1985-06-10 | Nachi Fujikoshi Corp | Drilling tool |
| JPH1119813A (en) * | 1997-06-27 | 1999-01-26 | Nachi Fujikoshi Corp | Compound hole drilling tool |
| CN1872472A (en) * | 2006-06-30 | 2006-12-06 | 重庆长安汽车股份有限公司 | Dedicated reamer made from magnesium alloy for cabinet of speed changer |
| CN202461616U (en) * | 2011-12-31 | 2012-10-03 | 上海航天精密机械研究所 | Composite spot facing drill |
| CN202639453U (en) * | 2012-07-24 | 2013-01-02 | 中国核动力研究设计院 | Formed milling cutter used for precision machining of seal combination holes |
-
2014
- 2014-01-09 CN CN201410009854.6A patent/CN103692000A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60104604A (en) * | 1983-11-14 | 1985-06-10 | Nachi Fujikoshi Corp | Drilling tool |
| JPH1119813A (en) * | 1997-06-27 | 1999-01-26 | Nachi Fujikoshi Corp | Compound hole drilling tool |
| CN1872472A (en) * | 2006-06-30 | 2006-12-06 | 重庆长安汽车股份有限公司 | Dedicated reamer made from magnesium alloy for cabinet of speed changer |
| CN202461616U (en) * | 2011-12-31 | 2012-10-03 | 上海航天精密机械研究所 | Composite spot facing drill |
| CN202639453U (en) * | 2012-07-24 | 2013-01-02 | 中国核动力研究设计院 | Formed milling cutter used for precision machining of seal combination holes |
Non-Patent Citations (1)
| Title |
|---|
| 朴泽思: "介绍一种加工中心孔的先进刀具-R型中心钻", 《标准化报道》 * |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140402 |