CN202062106U - Chip breaking drill - Google Patents
Chip breaking drill Download PDFInfo
- Publication number
- CN202062106U CN202062106U CN2011200828061U CN201120082806U CN202062106U CN 202062106 U CN202062106 U CN 202062106U CN 2011200828061 U CN2011200828061 U CN 2011200828061U CN 201120082806 U CN201120082806 U CN 201120082806U CN 202062106 U CN202062106 U CN 202062106U
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- CN
- China
- Prior art keywords
- chip breaking
- drill
- groove
- spiral
- chip
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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.)
- Expired - Fee Related
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Abstract
The utility model discloses a chip breaking drill, which comprises a drill bit, a drill body and a drill handle. The drill body is formed by an arc sunk spiral groove; a main cutting blade is formed at one side of the groove; a chip removal space is formed at the other side of the groove; and the groove is internally provided with a chip breaking blade protruding along the spiral direction. In the chip breaking drill, when the spiral channel of the drill bit is milled, the chip breaking blade with a chip breaking function, protruding along the spiral direction, is milled in the spiral channel; therefore, the original cutting blade in a long strip shape can be discharged in a mall section shape so that operation staffs can be avoided from being injured; simultaneously, cooling liquid also can flow into a cutting region smoothly; moreover, the cooling liquid can favorably flow into the cutting region.
Description
Technical field
The utility model relates to a kind of instrument in metal material merchant boring.
Background technology
The bore process of fluted drill on non-ferrous metal, ferrous metal that utilize that occurs from the west industrialization epoch is in use to now always, every have use that metal even plastic article need hole, just too busy to get away fluted drill.Be existing fluted drill groove schematic diagram as described in Figure 1, although the structure of fluted drill has obtained some improvement now, but the brill of constant is fluted drill respectively has a main cutting edge on two spiral grooves 4 on one's body, the top of fluted drill applies one towards machined material pressure under rotation at a high speed, two main cutting edges just can be cut metal, and the metal that is dug down forms spiral helicine smear metal and ejects along two grooves 4 under rotation status.
But the also spiral slivering discharge of defectiveness: a. smear metal in boring procedure in the metal boring procedure like this, the edge indentation of smear metal is discharged the strip smear metal and often easily the operator is damaged under fluted drill high speed rotary state; B. boring cutting time domain produces high temperature because of friction, generally need add inject cooling liquid to cutting region, make the cooling of main cutting zone to increase the service life, in when boring because rectangular smear metal is constantly disturbing cooling fluid to flow into cutting region in the discharge process, cooling effect is had a greatly reduced quality, reduced the service life of drill bit like this.
Summary of the invention
In order to address the above problem, the utility model provides a kind of chip breaking to bore, by when the spiral grooves of illing-drilling head, in the groove of spiral, mill out a chip breaking sword with chip breaking function along the projection of spiral, the rectangular cutting edge of script can be the segment shape and eject, and help cooling fluid inflow cutting region.
A kind of chip breaking is bored, and comprises drill bit, bores body and three part compositions of drillstock, and the spiral groove that described brill body is an arc-shaped recess constitutes, and described groove one side forms main cutting edge, and opposite side forms the chip removal space; Chip breaking sword along the hand of spiral and projection is arranged in the described groove.
Described main cutting edge is 30 ° with boring the body axis angle.
Can bump against the chip breaking sword of projection in the drill bit of the present utility model process that smear metal is curled along spiral grooves in boring procedure, thereby make the amount of crimp of smear metal bigger, even fracture to the end, smear metal just can be one section little smear metal discharge like this.Avoided easily operating personnel being damaged, also helped cooling fluid simultaneously and flow to cutting zone.
Description of drawings
Fig. 1 is the fluted drill groove structure schematic diagram of prior art;
Fig. 2 is that the groove structure schematic diagram is bored in chip breaking of the present utility model;
Fig. 3 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As Fig. 2, shown in Figure 3, a kind of chip breaking is bored, and comprises drill bit 1, bores body 2 and 3 three part compositions of drillstock, and the spiral groove 4 that described brill body 2 is arc-shaped recess constitutes, and described groove one side forms main cutting edge, and opposite side forms the chip removal space; Have along hand of spiral projection in the described groove 4, this convexes to form chip breaking sword 5, the rectangular smear metal of the cutting that can fracture.
As shown in Figure 3, main cutting edge is 30 ° with the axis angle that bores body 2.
In use at first drill bit 1 enters metal inside, and the main cutting edge on both sides cuts metal, and smear metal is discharged the outside from the groove 4 of spiral.In the process of discharging, smear metal is curling strip, and smear metal is bigger than the resistance that is subjected in common drill groove in the chip breaking sword 5 through projection, so amount of crimp is bigger, when smear metal bumped against the chip breaking sword 5 of projection, rectangular like this chip breaking became one little section.Discharging the back smear metal just can be one section one section, has avoided the long unfavorable factor that causes that operating personnel are damaged.A bit of smear metal simultaneously more helps cutting fluid compared with strip and enters into cutting zone.
Claims (2)
1. a chip breaking is bored, and comprises drill bit, bores body and three part compositions of drillstock, it is characterized in that the spiral groove that described brill body is an arc-shaped recess constitutes, and described groove one side forms main cutting edge, and opposite side forms the chip removal space; Chip breaking sword along the hand of spiral and projection is arranged in the described groove.
2. chip breaking as claimed in claim 1 is bored, and it is characterized in that, described main cutting edge is 30 ° with boring the body axis angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200828061U CN202062106U (en) | 2011-03-25 | 2011-03-25 | Chip breaking drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200828061U CN202062106U (en) | 2011-03-25 | 2011-03-25 | Chip breaking drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202062106U true CN202062106U (en) | 2011-12-07 |
Family
ID=45055985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200828061U Expired - Fee Related CN202062106U (en) | 2011-03-25 | 2011-03-25 | Chip breaking drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202062106U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706846A (en) * | 2012-10-01 | 2014-04-09 | 李仕清 | Centering spiral tool with combined positioning and combined cutting functions |
| CN104755210A (en) * | 2012-10-25 | 2015-07-01 | 住友电工硬质合金株式会社 | Small-diameter drill |
| CN105798358A (en) * | 2014-12-27 | 2016-07-27 | 汪风珍 | Toothed drill |
| CN105983718A (en) * | 2015-02-16 | 2016-10-05 | 汪风珍 | Drill bit |
| CN109128306A (en) * | 2018-08-28 | 2019-01-04 | 大连理工大学 | A kind of chip breaking structure of step drill variable diameter position cutting edge |
| CN113523334A (en) * | 2021-06-16 | 2021-10-22 | 芜湖市零一精密工具制造有限公司 | Hard finishing tool easy to break chips |
-
2011
- 2011-03-25 CN CN2011200828061U patent/CN202062106U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706846A (en) * | 2012-10-01 | 2014-04-09 | 李仕清 | Centering spiral tool with combined positioning and combined cutting functions |
| CN104755210A (en) * | 2012-10-25 | 2015-07-01 | 住友电工硬质合金株式会社 | Small-diameter drill |
| US9522428B2 (en) | 2012-10-25 | 2016-12-20 | Sumitomo Electric Hardmetal Corp. | Small-diameter drill |
| CN104755210B (en) * | 2012-10-25 | 2017-03-08 | 住友电工硬质合金株式会社 | Small diameter drill bit |
| CN105798358A (en) * | 2014-12-27 | 2016-07-27 | 汪风珍 | Toothed drill |
| CN105983718A (en) * | 2015-02-16 | 2016-10-05 | 汪风珍 | Drill bit |
| CN109128306A (en) * | 2018-08-28 | 2019-01-04 | 大连理工大学 | A kind of chip breaking structure of step drill variable diameter position cutting edge |
| CN113523334A (en) * | 2021-06-16 | 2021-10-22 | 芜湖市零一精密工具制造有限公司 | Hard finishing tool easy to break chips |
| CN113523334B (en) * | 2021-06-16 | 2024-03-19 | 芜湖市零一精密工具制造有限公司 | Hard cutter of whole of easy broken bits |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20130325 |