CN104338981A - Welding type inner-cooling drill - Google Patents
Welding type inner-cooling drill Download PDFInfo
- Publication number
- CN104338981A CN104338981A CN201310330276.1A CN201310330276A CN104338981A CN 104338981 A CN104338981 A CN 104338981A CN 201310330276 A CN201310330276 A CN 201310330276A CN 104338981 A CN104338981 A CN 104338981A
- Authority
- CN
- China
- Prior art keywords
- cooling
- drill
- knife
- cutting portion
- handle
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/40—Flutes, i.e. chip conveying grooves
- B23B2251/408—Spiral grooves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention relates to an opening inner-cooling drill, in particular to a welding type inner-cooling drill. The welding type inner-cooling drill comprises a shank, a drill body is fixed on the shank, and chip grooves used for discharging chippings are arranged on the peripheral body of the drill body. A drill bit is fixedly welded at the end of the drill body and comprises a cutting portion and a cooling portion, the longitudinal section of the cutting portion is rectangular, and the cutting portion comprises a center and two cutting blades connected with the center; the cooling portion comprises two cooling surfaces, at least one triangular coolant outlet is arranged in each cooling surface, a coolant passage is arranged on the axis portion from the shank to the drill body, and the coolant outlets are communicated with the coolant passage. The welding type inner-cooling drill has the advantages that the drill bit can be cooled in a drilled hole from inside to outside, and service life of the drill bit is prolonged.
Description
Technical field
The present invention 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 goes out through hole or blind hole in order to drilling on solid material, and can to the cutter of existing hole reaming.Conventional drill bit mainly contains fluted drill, chit drill, centre drill, depth drill and cylindrical drill.Used normal drill bit generally uses material for carbide alloy and high-speed steel, the drill bit made with Hardmetal materials, although durable in use, price is very high, and the outside diameter produced can not exceed
production and application cost is high, with the drill bit that high-speed steel is made, although low price, use cost relative moderate, the low easy fracture of the drill bit rigidity due to high speed steel material, so use cumbersome, often change, the high temperature that especially common drill bit produces when boring material easily makes bit damage, in boring, do not have effective cooling method.
Summary of the invention
To the present invention is directed in above-mentioned technology Hardmetal materials production and application cost height high speed steel material rigidity cannot cool in boring not and hold flimsy shortcoming cold brill in a kind of welded type is provided.
The invention provides following technical scheme:
Cold brill in welded type, it comprises handle of a knife, handle of a knife is fixed with cutter hub, cutter hub week is provided with the chip area for getting rid of chip with it, cutter hub welding edges is fixed 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 be connected, described cooling end comprises two cooling surfaces, cooling surface is equipped with at least one leg-of-mutton cooling liquid outlet, handle of a knife is provided with cooling passage to the axis part of cutter hub, and described cooling liquid outlet is communicated with cooling passage.
The groove of described chip area is low to be evenly distributedly provided with circular cooling and to portal.
Described handle of a knife is provided with positioning convex.
Advantage of the present invention be can in machining hole cooling drill bit from inside to outside, extend the service life of drill bit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A direction view of Fig. 1.
Detailed description of the invention
As shown in Figure 1, cold brill in welded type, it comprises handle of a knife 1, handle of a knife 1 is fixed with cutter hub 2, cutter hub is provided with the chip area 3 for getting rid of chip for 2 weeks with it, cutter hub 2 welding edges is fixed with bit head, this bit head comprises cutting portion 4 and cooling end 5, cutting portion 4 longitudinal cross-section is rectangle, cutting portion 4 comprise top 4a and two with the top cutting edge 4b be connected, described cooling end 5 comprises two cooling surfaces, cooling surface is equipped with at least one leg-of-mutton cooling liquid outlet 5a, the axis part of handle of a knife 1 to cutter hub is provided with cooling passage 6, described cooling liquid outlet is communicated with cooling passage.
The low evenly distributed circle that is provided with of groove of described chip area 3 cools the 3a that portals.
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, handle of a knife is fixed with cutter hub, cutter hub week is provided with the chip area for getting rid of chip with it, cutter hub welding edges is fixed 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 be connected, described cooling end comprises two cooling surfaces, cooling surface is equipped with at least one leg-of-mutton cooling liquid outlet, handle of a knife is provided with cooling passage to the axis part of cutter hub, 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 groove of described chip area is low to be evenly distributedly provided with circular cooling and to portal.
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 |
|---|---|---|---|
| CN201310330276.1A CN104338981A (en) | 2013-07-31 | 2013-07-31 | Welding type inner-cooling drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310330276.1A CN104338981A (en) | 2013-07-31 | 2013-07-31 | Welding type inner-cooling drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104338981A true CN104338981A (en) | 2015-02-11 |
Family
ID=52495909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310330276.1A Pending CN104338981A (en) | 2013-07-31 | 2013-07-31 | Welding type inner-cooling drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104338981A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107584159A (en) * | 2016-07-07 | 2018-01-16 | 昆山捷鑫辰精密工业刀具有限公司 | A kind of high-intensity welding formula carbide drill |
| CN108656263A (en) * | 2018-05-11 | 2018-10-16 | 方大控股有限公司 | A kind of novel alloy drill bit |
| CN111168115A (en) * | 2020-03-17 | 2020-05-19 | 浙江德弘机电科技有限公司 | High-precision aluminum girder drilling process |
| CN111975053A (en) * | 2019-05-24 | 2020-11-24 | 江苏叁陆零工具有限公司 | High-speed steel short column drill bit |
| CN112676620A (en) * | 2019-10-17 | 2021-04-20 | 肯纳金属公司 | Rotary cutting tool and use thereof |
-
2013
- 2013-07-31 CN CN201310330276.1A patent/CN104338981A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107584159A (en) * | 2016-07-07 | 2018-01-16 | 昆山捷鑫辰精密工业刀具有限公司 | A kind of high-intensity welding formula carbide drill |
| CN108656263A (en) * | 2018-05-11 | 2018-10-16 | 方大控股有限公司 | A kind of novel alloy drill bit |
| CN111975053A (en) * | 2019-05-24 | 2020-11-24 | 江苏叁陆零工具有限公司 | High-speed steel short column drill bit |
| CN112676620A (en) * | 2019-10-17 | 2021-04-20 | 肯纳金属公司 | Rotary cutting tool and use thereof |
| CN112676620B (en) * | 2019-10-17 | 2024-02-02 | 肯纳金属公司 | Rotary cutting tool and use thereof |
| CN111168115A (en) * | 2020-03-17 | 2020-05-19 | 浙江德弘机电科技有限公司 | High-precision aluminum girder drilling process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150211 |
|
| WD01 | Invention patent application deemed withdrawn after publication |