CN201871774U - Drill bit with cooling structure - Google Patents
Drill bit with cooling structure Download PDFInfo
- Publication number
- CN201871774U CN201871774U CN2010205764767U CN201020576476U CN201871774U CN 201871774 U CN201871774 U CN 201871774U CN 2010205764767 U CN2010205764767 U CN 2010205764767U CN 201020576476 U CN201020576476 U CN 201020576476U CN 201871774 U CN201871774 U CN 201871774U
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- China
- Prior art keywords
- drill bit
- cooling
- hole
- cutting edge
- cooling structure
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- Expired - Fee Related
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- Drilling Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model relates to a drill bit with a cooling structure, comprising a cutter handle part, and a work part which is integrally formed together with the cutter handle part. The work part comprises a main cutting edge arranged at the axial end, and a guiding part provided with spiral grooves at the circumferential surface, a cooling through hole is arranged at the inner part of a cutter body, and an angle alpha of a nose angle of the main cutting edge is 125 degrees to 134 degrees. Cooling liquid can be injected into the cooling through hole for cooling, the service life of the drill bit is prolonged, simultaneously, a rough removing edge can clean the interior of the hole, so that the inner surface of the hole can reach the needed precision one time, further the production cost is lowered, a cutter does not need to be changed frequently, and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of lathe machining tool, is specifically related to a kind of drill bit with cooling structure.
Background technology
The kind of drill bit is more, fluted drill for example, reamer etc.Common drill bit is made up of drillstock and working portion, wherein, working portion generally includes cutting edge and targeting part, targeting part is provided with the groove that is used for deslagging, this drill bit structure, and it adds man-hour in boring, drill bit generates heat easily, if untimely cools off drill bit, the as easy as rolling off a log damage that causes drill edge influences the operate as normal of drill bit; So in addition drill bit only designs for boring roughing, and when needs fine finishining internal surface of hole, also need change another kind of drill bit carries out fine finishining to the hole, has increased production cost, and changes cutter and also waste time and energy, and production efficiency is low.
The utility model content
At the problems referred to above, the purpose of this utility model provides a kind of drill bit with cooling structure, it can be when drill bit be worked, cool off in cutting edge, cutting face to drill bit, thereby prolong the service life of drill bit, and can once finish the fine finishining in hole, and saved production cost, improved production efficiency.
The realization the technical solution of the utility model is as follows:
A kind of drill bit with cooling structure, comprise handle of a knife portion and with the integrated operate portions of handle of a knife portion, its operate portions comprises that the main cutting edge of axial end setting and side face are provided with the spiral fluted targeting part, described cutter hub inside is provided with the cooling through hole, and the angle [alpha] of the nose angle of main cutting edge is 125 °-134 °.
Described cooling through hole spiral be arranged on cutter hub inside, the one end is positioned at the breech face of handle of a knife portion, the other end is positioned at the cutting face.
The angle [alpha] of the nose angle of described main cutting edge is 130 °.
Described spiral fluted helixangle is 20 °-25 °.
The side face of described targeting part is provided with and removes rough sword, and it is parallel with described helicla flute to remove rough sword.
Adopted such scheme, cutter hub inside is provided with the cooling through hole, cooling through hole spiral be arranged on cutter hub inside, the one end is positioned at the breech face of handle of a knife portion, the other end is positioned at the cutting face, when drill bit carries out work, injects cooling fluid in the cooling through hole it is cooled off like this, thereby reach effect, prolong its service life the drill bit cooling; Be to remove rough sword in addition on the targeting part side face, can clear up that the inner surface in hole is reached needs precision to the hole of lead plug processing.And the angle [alpha] of the nose angle of main cutting edge is 125 °-134 °, helps the cutting of main cutting edge.Therefore the utility model can the injection cooling fluid cool off in the cooling through hole, prolong drilling life of bit, remove rough sword simultaneously to clearing up in the hole, make the inner surface in hole once just reach required precision, thereby reduce production costs, and do not need again frequent replacing cutter, improved production efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to zoomed-in view;
In the accompanying drawing, 1 is handle of a knife portion, and 2 is main cutting edge, and 3 is helicla flute, and 4 are the cooling through hole, and 5 is the cutting face, and 6 for removing rough sword.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
Shown in Fig. 1,2, a kind of drill bit with cooling structure, comprise handle of a knife portion 1 and with the integrated operate portions of handle of a knife portion, its operate portions comprises the main cutting edge 2 of axial end setting and the targeting part that side face is provided with helicla flute 3, cutter hub inside is provided with cooling through hole 4, and the angle [alpha] of the nose angle of main cutting edge is 125 °-134 °.Cooling through hole 4 spirals be arranged on cutter hub inside, the one end is positioned at the breech face of handle of a knife portion, the other end is positioned at cutting face 5.The side face of targeting part is provided with and removes rough sword 6, and this removes rough sword and described helicla flute be arranged in parallel.The spiral fluted helixangle is 20 °-25 °.In the present embodiment, the angle [alpha] of the nose angle of main cutting edge is 130 °, and the spiral fluted helixangle is 23 °.
Claims (5)
1. drill bit with cooling structure, comprise handle of a knife portion and with the integrated operate portions of handle of a knife portion, its operate portions comprises that the main cutting edge of axial end setting and side face are provided with the spiral fluted targeting part, it is characterized in that: described cutter hub inside is provided with the cooling through hole, and the angle [alpha] of the nose angle of main cutting edge is 125 °-134 °.
2. a kind of drill bit with cooling structure according to claim 1 is characterized in that: described cooling through hole spiral be arranged on cutter hub inside, the one end is positioned at the breech face of handle of a knife portion, the other end is positioned at the cutting face.
3. a kind of drill bit with cooling structure according to claim 1 is characterized in that: the angle [alpha] of the nose angle of described main cutting edge is 130 °.
4. a kind of drill bit with cooling structure according to claim 1 is characterized in that: described spiral fluted helixangle is 20 °-25 °.
5. a kind of drill bit with cooling structure according to claim 1 is characterized in that: the side face of described targeting part is provided with and removes rough sword, and it is parallel with described helicla flute to remove rough sword.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205764767U CN201871774U (en) | 2010-10-25 | 2010-10-25 | Drill bit with cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205764767U CN201871774U (en) | 2010-10-25 | 2010-10-25 | Drill bit with cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201871774U true CN201871774U (en) | 2011-06-22 |
Family
ID=44159708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205764767U Expired - Fee Related CN201871774U (en) | 2010-10-25 | 2010-10-25 | Drill bit with cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201871774U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042259A (en) * | 2012-12-12 | 2013-04-17 | 锑玛(苏州)精密工具有限公司 | Inner-cooling stepped drill |
| CN103567507A (en) * | 2013-07-16 | 2014-02-12 | 昆山巨德泰精密机械有限公司 | Drill bit with radiating hole in blade part |
-
2010
- 2010-10-25 CN CN2010205764767U patent/CN201871774U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042259A (en) * | 2012-12-12 | 2013-04-17 | 锑玛(苏州)精密工具有限公司 | Inner-cooling stepped drill |
| CN103567507A (en) * | 2013-07-16 | 2014-02-12 | 昆山巨德泰精密机械有限公司 | Drill bit with radiating hole in blade part |
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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: 20110622 Termination date: 20151025 |
|
| EXPY | Termination of patent right or utility model |