CN203541648U - Welded internal cooling drill - Google Patents
Welded internal cooling drill Download PDFInfo
- Publication number
- CN203541648U CN203541648U CN201320463266.0U CN201320463266U CN203541648U CN 203541648 U CN203541648 U CN 203541648U CN 201320463266 U CN201320463266 U CN 201320463266U CN 203541648 U CN203541648 U CN 203541648U
- Authority
- CN
- China
- Prior art keywords
- cooling
- drill
- handle
- knife
- cutter hub
- 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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Abstract
The utility model relates to an internal cooling drill which is provided with a hole, particularly to a welded internal cooling drill. The welded internal cooling drill comprises a cutter handle; a cutter body is fixed on the cutter handle; debris removing grooves which are used for removing debris are formed in the periphery of the cutter body; the drill portion is fixed on the end portion of the cutter body in a welding mode; the drill portion comprises the cutting portion and the cooling portion; the longitudinal section of the cutting portion is in a rectangular shape; the cutting portion comprises the tip and two cutting edges; the two cutting edges are connected with the tip; the cooling portion comprises two cooling surfaces; each cooling surface is provided with at least one cooling liquid outlet which is in a triangular shape; the axis position from the cutter handle to the cutter body is provided with a cooling liquid channel; the cooling liquid outlet is communicated with the cooling liquid channel. According to the welded internal cooling drill, the drill can be cooled in a machining hole from inside to outside and accordingly the service life of the drill is extended.
Description
Technical field
The utility model relates to a kind of internal-cooling bit of drill of perforate, specifically cold brill in a kind of welded type.
Background technology
Drill bit is to go out through hole or blind hole in order to drilling on solid material, and cutter that can be to the reaming of existing hole.Conventional drill bit mainly contains fluted drill, chit drill, centre drill, depth drill and cylindrical drill.Used common drill bit is generally used material for carbide alloy and high-speed steel, the drill bit made from Hardmetal materials, although durable in use, price is very high, and the outside diameter of producing can not surpass
production and application cost is high, the drill bit made from high-speed steel, although low price, use cost is relatively cheap, due to the low easy fracture of drill bit rigidity of high speed steel material, so use cumbersome, often change, the high temperature that especially common drill bit produces when boring material easily makes drill bit damage, and in boring, there is no effective cooling method.
Summary of the invention
The utility model cannot the flimsy shortcoming of cooling appearance provide cold brill in a kind of welded type in boring not for the high high speed steel material rigidity of Hardmetal materials production and application cost in above-mentioned technology.
The utility model provides following technical scheme:
Cold brill in welded type, it comprises handle of a knife, on handle of a knife, be fixed with cutter hub, be provided with it in cutter hub week for getting rid of the chip area of chip, cutter hub end is welded with bit head, this bit head comprises cutting portion and cooling end, cutting portion longitudinal cross-section is rectangle, cutting portion comprise top and two with the top cutting edge being connected, described cooling end comprises two cooling surfaces, on cooling surface, be equipped with at least one leg-of-mutton cooling liquid outlet, handle of a knife to the axis part of cutter hub is provided with cooling passage, and described cooling liquid outlet is communicated with cooling passage.
The bottom land of described chip area is evenly distributed is provided with circular cooling portalling.
Described handle of a knife is provided with positioning convex.
The utility model has the advantages that can be in machining hole cooling drill bit from inside to outside, extend service life of drill bit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to view.
The specific embodiment
As shown in Figure 1, cold brill in welded type, it comprises handle of a knife 1, on handle of a knife 1, be fixed with cutter hub 2, cutter hub is provided with for getting rid of the chip area 3 of chip for 2 weeks with it, cutter hub 2 ends are welded with bit head, this bit head comprises cutting portion 4 and cooling end 5, cutting portion 4 longitudinal cross-sections are rectangle, cutting portion 4 comprises top 4a and two and the top cutting edge 4b being connected, described cooling end 5 comprises two cooling surfaces, on cooling surface, be equipped with at least one leg-of-mutton cooling liquid outlet 5a, handle of a knife 1 to the axis part of cutter hub is provided with cooling passage 6, described cooling liquid outlet is communicated with cooling passage.
The evenly distributed cooling 3a of portalling of circle that is provided with of bottom land of described chip area 3.
Described handle of a knife is provided with positioning convex 7.
Claims (3)
1. cold brill in welded type, it comprises handle of a knife, on handle of a knife, be fixed with cutter hub, be provided with it in cutter hub week for getting rid of the chip area of chip, cutter hub end is welded with bit head, this bit head comprises cutting portion and cooling end, cutting portion longitudinal cross-section is rectangle, cutting portion comprise top and two with the top cutting edge being connected, described cooling end comprises two cooling surfaces, on cooling surface, be equipped with at least one leg-of-mutton cooling liquid outlet, handle of a knife to the axis part of cutter hub is provided with cooling passage, and described cooling liquid outlet is communicated with cooling passage.
2. cold brill in welded type according to claim 1, is characterized in that: the bottom land of described chip area is evenly distributed is provided with circular cooling portalling.
3. cold brill in welded type according to claim 1, is characterized in that: described handle of a knife is provided with positioning convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320463266.0U CN203541648U (en) | 2013-07-31 | 2013-07-31 | Welded internal cooling drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320463266.0U CN203541648U (en) | 2013-07-31 | 2013-07-31 | Welded internal cooling drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203541648U true CN203541648U (en) | 2014-04-16 |
Family
ID=50459817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320463266.0U Expired - Fee Related CN203541648U (en) | 2013-07-31 | 2013-07-31 | Welded internal cooling drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203541648U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478866A (en) * | 2015-12-28 | 2016-04-13 | 株洲钻石切削刀具股份有限公司 | High-precision hole machining tool |
| CN110449624A (en) * | 2019-07-18 | 2019-11-15 | 浙江固德轴承制造有限公司 | Line rail puncher |
-
2013
- 2013-07-31 CN CN201320463266.0U patent/CN203541648U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478866A (en) * | 2015-12-28 | 2016-04-13 | 株洲钻石切削刀具股份有限公司 | High-precision hole machining tool |
| CN110449624A (en) * | 2019-07-18 | 2019-11-15 | 浙江固德轴承制造有限公司 | Line rail puncher |
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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: 20140416 Termination date: 20150731 |
|
| EXPY | Termination of patent right or utility model |