CN202263964U - Inner cold spiral-hole twist drill - Google Patents
Inner cold spiral-hole twist drill Download PDFInfo
- Publication number
- CN202263964U CN202263964U CN2011203689304U CN201120368930U CN202263964U CN 202263964 U CN202263964 U CN 202263964U CN 2011203689304 U CN2011203689304 U CN 2011203689304U CN 201120368930 U CN201120368930 U CN 201120368930U CN 202263964 U CN202263964 U CN 202263964U
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- Prior art keywords
- hole
- drill
- radial direction
- spiral
- inner cold
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Abstract
The utility model relates to an inner cold spiral-hole twist drill. At present, the conventional twist drills in China have outer cold structures, so that the cutting temperature is high, chips cannot be removed smoothly, a drill bit is quickly worn, and the service life of a cutter is finite. The cooling and lubricating effects of a cutting fluid are poor, and the drill bit is embrittled and fractured often and the durability of the drill bit is reduced; meanwhile, water supply is not sufficient, so that the drilling speed is limited to some extent and the work efficiency is low. The inner cold spiral-hole twist drill comprises a drill stock (1), wherein the drill stock is connected with a drill body (2) which is provided with a radial through hole (3); the drill stock is provided with an axial through hole (4) communicated with the radial through hole; and the drill body is provided with two parallel spiral holes (5) communicated with the radial through hole. The inner cold spiral-hole twist drill serves as a drilling tool.
Description
Technical field:
the utility model relates to a kind of drilling cutters, is specifically related to a kind of inner-cooled threaded hole fluted drill.
Background technology:
domestic existing fluted drill at present are the external-cooling type structure; Cause cutting temperature high, chip removal is not smooth, and bit wear is fast; Even if very limited of the life-span that causes cutter is the lubricant of practical oil-containing or to smear certain layer effect at tool surface also not obvious.The cooling and lubricating effect of cutting fluid is relatively poor, often causes the embrittlement of drill bit, has reduced the durability of drill bit, makes the application of carbide drill receive certain limitation; Because feedwater is insufficient, make drilling speed receive certain limitation simultaneously, can not satisfy the requirement that Digit Control Machine Tool, machining center etc. improve drilling speed, inefficiency.
Summary of the invention:
The purpose of
the utility model provides a kind of inner-cooled threaded hole fluted drill; The hole that adds cooling fluid is arranged on the drill body drillstock during cutting; Cutting fluid can arrive cutting point smoothly cutting region is fully cooled off, and improves stock-removing efficiency, and bit life is increased substantially.
Above-mentioned purpose realizes through following technical scheme:
inner-cooled threaded hole fluted drill; Its composition comprises: drillstock; Described drillstock connects drill body; Have a radial direction through hole on the described drill body, have axially extending bore on the described drillstock and be communicated with described radial direction through hole, have two parallel spiral-shaped orifices on the described drill body and be communicated with described radial direction through hole.
described inner-cooled threaded hole fluted drill, described radial direction through hole is positioned at the position apart from point of a knife 133.1mm, and the diameter of described radial direction through hole is 4.55mm.
Beneficial effect:
1. the utility model are provided with axially extending bore on drillstock; Two parallel spiral shape holes and radial direction through hole are set on drill body; Three holes are connected; Heat the interior cooling holes fluted drills of technology formation spirality such as the system of turning round, this structural design makes cooling fluid or lubricating fluid in cooling procedure, not only can get into drill body by the radial direction through hole of drill body and can directly get into from the afterbody axially extending bore, and the drillstock of flowing through gets into the effect that threaded hole reaches cooling and lubricating.
2. the fluted drill drill bit material that provides of the utility model are carbide alloy; When processing work, can directly be delivered directly to cutting region by the drillstock afterbody through the axially extending bore on the drillstock owing to cooling fluid; Make that cooling is abundant and easy to operate, reduce the cutting edge wearing and tearing, so the wear of the tool flank amount is littler than common fluted drill; Thereby obviously improved the life-span of drill bit, improved 3-4 doubly than common fluted drill.When cooling fluid flows out, help chip removal, improved operating efficiency.
Description of drawings:
accompanying drawing 1 is the structural representation of the utility model.
accompanying drawing 2 is A-A cutaway views of accompanying drawing 1.
The specific embodiment:
Embodiment 1:
inner-cooled threaded hole fluted drill; Its composition comprises: drillstock 1; Described drillstock connects drill body 2; Have a radial direction through hole 3 on the described drill body, have axially extending bore 4 on the described drillstock and be communicated with described radial direction through hole, have two parallel spiral-shaped orifices 5 on the described drill body and be communicated with described radial direction through hole.
Embodiment 2:
described inner-cooled threaded hole fluted drill, described radial direction through hole is positioned at the position apart from point of a knife 133.1mm, and the diameter of described radial direction through hole is 4.55mm.
Claims (2)
1. inner-cooled threaded hole fluted drill; Its composition comprises: drillstock; It is characterized in that: described drillstock connects drill body; Have a radial direction through hole on the described drill body, have axially extending bore on the described drillstock and be communicated with described radial direction through hole, have two parallel spiral-shaped orifices on the described drill body and be communicated with described radial direction through hole.
2. inner-cooled threaded hole fluted drill according to claim 1, it is characterized in that: described radial direction through hole is positioned at the position apart from point of a knife 133.1mm, and the diameter of described radial direction through hole is 4.55mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203689304U CN202263964U (en) | 2011-10-06 | 2011-10-06 | Inner cold spiral-hole twist drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203689304U CN202263964U (en) | 2011-10-06 | 2011-10-06 | Inner cold spiral-hole twist drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202263964U true CN202263964U (en) | 2012-06-06 |
Family
ID=46154775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203689304U Expired - Fee Related CN202263964U (en) | 2011-10-06 | 2011-10-06 | Inner cold spiral-hole twist drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202263964U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213076A (en) * | 2013-04-25 | 2013-07-24 | 常熟市巨力砂轮有限责任公司 | Grinding wheel with spiral cooling channel |
| CN103252679A (en) * | 2013-05-20 | 2013-08-21 | 苏州瑞森硬质合金有限公司 | Efficient spiral-shaped inner cooling bar for machining cutting knife |
| CN105127488A (en) * | 2015-09-06 | 2015-12-09 | 邓永辉 | Twist drill for improving using effect |
| CN109352038A (en) * | 2018-12-05 | 2019-02-19 | 山东大学 | A kind of interior cooling drills and reams ream integrated tool and the system including the cutter |
-
2011
- 2011-10-06 CN CN2011203689304U patent/CN202263964U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213076A (en) * | 2013-04-25 | 2013-07-24 | 常熟市巨力砂轮有限责任公司 | Grinding wheel with spiral cooling channel |
| CN103252679A (en) * | 2013-05-20 | 2013-08-21 | 苏州瑞森硬质合金有限公司 | Efficient spiral-shaped inner cooling bar for machining cutting knife |
| CN105127488A (en) * | 2015-09-06 | 2015-12-09 | 邓永辉 | Twist drill for improving using effect |
| CN109352038A (en) * | 2018-12-05 | 2019-02-19 | 山东大学 | A kind of interior cooling drills and reams ream integrated tool and the system including the cutter |
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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: 20120606 Termination date: 20141006 |
|
| EXPY | Termination of patent right or utility model |