CN204867563U - Three -wing bit - Google Patents
Three -wing bit Download PDFInfo
- Publication number
- CN204867563U CN204867563U CN201520621081.7U CN201520621081U CN204867563U CN 204867563 U CN204867563 U CN 204867563U CN 201520621081 U CN201520621081 U CN 201520621081U CN 204867563 U CN204867563 U CN 204867563U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- sword
- bit
- shear blade
- 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.)
- Expired - Fee Related
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- Earth Drilling (AREA)
Abstract
The utility model provides a three -wing bit, including drill bit and bit sub, still include sword at the bottom of the drill bit, the drill bit top be equipped with sword seat at the bottom of the drill bit, the sword sets up at the bottom of the drill bit on the sword seat at the bottom of the drill bit, sword and drill bit structure as an organic whole at the bottom of the drill bit, be equipped with on the terminal surface that the sword seated connection touched at the bottom of sword and the drill bit at the bottom of the drill bit with the drill bit at the bottom of the drill bit of sword thickness, shape unanimity sword groove, be equipped with the flute at the bottom of the drill bit between the sword groove, the drill bit at the bottom of the sword constitute by three drill bit sword, every drill bit sword between the angle be 120 degrees, the bit sub end be equipped with the draw -in groove, the drill bit at the bottom of the sword pass through welded fastening sword inslot at the bottom of the drill bit, the beneficial effect of the utility model: the two cutting drill heads of this product on for market, the degree of accuracy of drilling is higher, drills out the kong gengyuan who comes, four cutting drill heads on the relative market, the chip removal effect is better, and is littleer to the damage that the wall periphery led to the fact, has improved work efficiency greatly.
Description
Technical field
The utility model relates to a kind of drill bit, particularly a kind of three-wing bit.
Background technology
Drill bit is widely used in building trade, existing two-edged drill bit commercially, and the hole degree of accuracy come outbreak out is not high, and existing four-edge bit flute is commercially too little, go out to consider weak effect to be worth doing, metope periphery is damaged large, so need a kind of three-wing bit just can address these problems.
Utility model content
For existing technical deficiency, the utility model provides a kind of three-wing bit.
To achieve these goals, technical solution adopted in the utility model is: three-wing bit, comprise drill bit and bit sub, also comprise drill bit shear blade, described drill end is provided with drill bit shear blade seat, and drill bit shear blade is arranged on drill bit shear blade seat, drill bit shear blade and drill bit are structure as a whole, drill bit shear blade and the end face that drill bit shear blade seated connection touches are provided with and drill bit shear blade thickness, drill bit shear blade groove that shape is consistent, and be provided with flute between drill bit shear blade groove, described drill bit shear blade is made up of three bit edges.
Angle between described each bit edge is 120 degree.
Described bit sub end is provided with draw-in groove.
Described drill bit shear blade is fixed by welding in drill bit shear blade groove.
The beneficial effects of the utility model: this product is relative to the two-edged drill bit on market, and the degree of accuracy of boring is higher, the Kong Gengyuan come outbreak out, four-edge bit on relative market, chip removal better effects if, the damage caused metope periphery is less, substantially increases operating efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is drill bit structure schematic diagram of the present utility model.
Detailed description of the invention
As shown in Fig. 1 ~ Fig. 2, three-wing bit, comprise drill bit 1 and bit sub 2, drill bit 1 top is provided with drill bit shear blade seat 3, also comprises drill bit shear blade 4, and described drill bit shear blade 4 is arranged on drill bit shear blade seat 3, drill bit shear blade 4 and drill bit 1 are structure as a whole, the end face that drill bit shear blade 4 contacts with drill bit shear blade seat 3 is provided with and drill bit shear blade 4 thickness, drill bit shear blade groove 5 that shape is consistent, and be provided with flute 6 between drill bit shear blade groove 5, described drill bit shear blade 4 is made up of three bit edges 7.
Angle between described each bit edge 7 is 120 degree, and the angle between the bit edge of three-wing bit is 120 degree, than four sword chip removal better effects if on market.
Described bit sub 2 end is provided with draw-in groove 8, draw-in groove be facilitate drill bit more fastening clamping in rig.
Described drill bit shear blade 4 is fixed by welding in drill bit shear blade groove 5.
Drill bit shear blade is embedded in drill bit shear blade groove, and by being welded and fixed, by the design of the three swords standard Du Genggao (namely round) relative to the hole got out two-edged, because the angle between three swords is larger than the angle of four swords, so the groove face of flute is also just larger, and the spacing between bit edge strengthens, and therefore says bits relative to four-edge bit easier, damage less to peripheries such as metopes, substantially increase efficiency.
Claims (4)
1. three-wing bit, comprise drill bit and bit sub, it is characterized in that, drill end is provided with drill bit shear blade seat, also comprises drill bit shear blade, and described drill bit shear blade is arranged on drill bit shear blade seat, drill bit shear blade and drill bit are structure as a whole, drill bit shear blade and the end face that drill bit shear blade seated connection touches are provided with and drill bit shear blade thickness, drill bit shear blade groove that shape is consistent, and be provided with flute between drill bit shear blade groove, described drill bit shear blade is made up of three bit edges.
2. three-wing bit as claimed in claim 1, it is characterized in that, the angle between described each bit edge is 120 degree.
3. three-wing bit as claimed in claim 1, it is characterized in that, described bit sub end is provided with draw-in groove.
4. three-wing bit as claimed in claim 1, it is characterized in that, described drill bit shear blade is fixed by welding in drill bit shear blade groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520621081.7U CN204867563U (en) | 2015-08-18 | 2015-08-18 | Three -wing bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520621081.7U CN204867563U (en) | 2015-08-18 | 2015-08-18 | Three -wing bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204867563U true CN204867563U (en) | 2015-12-16 |
Family
ID=54811991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520621081.7U Expired - Fee Related CN204867563U (en) | 2015-08-18 | 2015-08-18 | Three -wing bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204867563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710420A (en) * | 2016-03-23 | 2016-06-29 | 苏州亚思科精密数控有限公司 | Self-cooling type detachable drill bit device |
-
2015
- 2015-08-18 CN CN201520621081.7U patent/CN204867563U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710420A (en) * | 2016-03-23 | 2016-06-29 | 苏州亚思科精密数控有限公司 | Self-cooling type detachable drill bit device |
| CN105710420B (en) * | 2016-03-23 | 2017-11-10 | 王鸳 | A kind of Self-cooling detachable type drill device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20180818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |