CN103008734A - Tricorn bit - Google Patents
Tricorn bit Download PDFInfo
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- CN103008734A CN103008734A CN2012105663543A CN201210566354A CN103008734A CN 103008734 A CN103008734 A CN 103008734A CN 2012105663543 A CN2012105663543 A CN 2012105663543A CN 201210566354 A CN201210566354 A CN 201210566354A CN 103008734 A CN103008734 A CN 103008734A
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- Prior art keywords
- bit
- tricorn
- cutting edge
- dividing groove
- chip
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Abstract
The invention discloses a tricorn bit, which comprises a cutting edge, wherein the cutting edge is provided with a chip dividing groove. When the tricorn bit provided by the invention is used for processing an aluminum alloy material which is soft, and the chip dividing groove can be used for splitting wide aluminum chips into narrow aluminum chips particularly when the aperture is large and deep, so that convenience is brought to chip discharging, a chip accommodating groove is prevented from being blocked easily by cutting chips, the phenomenon of fracture of a handle part or breakage of the bit caused by sticking of the bit is avoided, and the rejection rate of the bit is lowered. Meanwhile, the tricorn bit provided by the invention is easy to manufacture, and is low in processing cost; and the chip dividing groove is formed, so that the weight of the tricorn bit is very light, convenience is brought to manual blade milling, and the drilling diameters can be changed by milling as required.
Description
Technical field
The present invention relates to the drilling tool technical field, relate in particular to a kind of tricorn bit.
Background technology
The used cutter of holing generally is drill bit.Drill bit is comprised of working portion, neck and shank, and its maximum drilling diameter only has Φ 80.Boring belongs to semi-enclosed cutting, and is when smear metal is discharged in the chip pocket, serious with the friction and Extrusion of hole wall and helical flue of drill, smear metal is blocked in the chip pocket easily, stuck drill bit causes shank to fracture or with broken drill, and after shank was fractureed, drill bit had also just been scrapped.
For example, the employed ingot casting of most of aluminium alloy pipe of producing at horizontal extruder is hollow cast ingot.The processing in hollow cast ingot hole generally is to carry out at horizontal boring machine or horizontal lathe.Take processing Φ 630x Φ 260x1200 as example, the conventional method in processing Φ 260 holes is to hole with the lengthening drill bit of Φ 60x350 first, then reaming, and then boring, and again reaming, so repeated multiple times, in this process, existing drill bit fractures easily and scraps.
Therefore, how providing a kind of tricorn bit, to reduce the drill bit scrappage, is the technical problem that present those skilled in the art need to be resolved hurrily.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of tricorn bit, to reduce the drill bit scrappage.
In order to achieve the above object, the invention provides following technical scheme:
A kind of tricorn bit comprises cutting edge, offers chip dividing groove on the described cutting edge.
Preferably, above-mentioned chip dividing groove is a plurality of.
Preferably, above-mentioned cutting edge is for comprising the first cutting edge and the second cutting edge, the setting of staggering of the chip dividing groove on the chip dividing groove on described the first cutting edge and described the second cutting edge.
Preferably, above-mentioned tricorn bit is hot die steel.
Preferably, above-mentioned tricorn bit is the H13 hot die steel through 1040 ℃ of quenchings and 570 ℃ of temper.
Preferably, be provided with screw fastening device on the above-mentioned tricorn bit.
Tricorn bit provided by the invention comprises cutting edge, offers chip dividing groove on the described cutting edge.Tricorn bit provided by the invention is when processing is used to aluminum alloy materials, because aluminum alloy materials is softer, especially when the aperture large and when dark, chip dividing groove can be divided into narrow aluminium bits to wide aluminium bits, make chip removal convenient, chip pocket is difficult for other smear metal and stops up, and stuck drill bit can not occur cause shank to fracture or with the phenomenon of broken drill, reduced the scrappage of drill bit.
Simultaneously, tricorn bit manufacture craft provided by the invention is simple, and processing charges is low, and owing to offered chip dividing groove, its very light in weight, hand grinding is convenient, can change as required and wear into other bore diameters.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the tricorn bit that Fig. 1 provides for the embodiment of the invention;
Fig. 2 is the structural representation of drill bit of the prior art.
Among Fig. 1 and Fig. 2:
Cutting edge 1, chip dividing groove 2.
The specific embodiment
The embodiment of the invention provides a kind of tricorn bit, to reduce the drill bit scrappage.
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Please refer to Fig. 1, the structural representation of the tricorn bit that Fig. 1 provides for the embodiment of the invention.
Tricorn bit provided by the invention comprises cutting edge 1, offers chip dividing groove 2 on the cutting edge 1.Tricorn bit provided by the invention is when processing is used to aluminum alloy materials, because aluminum alloy materials is softer, especially when the aperture large and when dark, chip dividing groove 2 can be divided into narrow aluminium bits to wide aluminium bits, make chip removal convenient, chip pocket is difficult for other smear metal and stops up, and stuck drill bit can not occur cause shank to fracture or with the phenomenon of broken drill, reduced the scrappage of drill bit.
Simultaneously, tricorn bit manufacture craft provided by the invention is simple, and processing charges is low, and owing to offered chip dividing groove 2, its very light in weight, hand grinding is convenient, can change as required and wear into other bore diameters.
Concrete, chip dividing groove 2 is a plurality of, to improve minute bits efficient, simultaneously, cutting edge is for comprising the first cutting edge and the second cutting edge, the setting of staggering of the chip dividing groove 2 on the first cutting edge and the chip dividing groove 2 on the second cutting edge, and staggering at two cutting edges grinds a plurality of chip dividing grooves 2, can so that machining condition be improved significantly, can improve cutting speed.
Concrete, tricorn bit is hot die steel.Hot die steel is to be suitable for making metal is carried out the alloy tool steel that the mould of thermal deformation processing is used, and be suitable for very much making drill bit, and serviceability is good, long service life, and raw material obtain easily simultaneously, and low price.
Concrete, tricorn bit is the H13 hot die steel through 1040 ℃ of quenchings and 570 ℃ of temper.Tricorn bit uses the H13 material to make.H13 is a kind of hot die steel, and it is 1040 ℃ of quenchings, and the hardness after 570 ℃ of tempering reaches more than the HRc55, can satisfy the requirement of processing Al alloy parts endoporus fully.
Concrete, be provided with screw fastening device on the tricorn bit.The clamping of tricorn bit is also very convenient so, can be contained in it in the draw-in groove of boring machine or tool holder of lathe and use screw fastening.At this moment, size and the degree of depth in the selective basis hole of knife bar can unload drill bit during sharpening.Can also according to the processing dimension of endoporus, change mill to existing bit diameter.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a tricorn bit comprises cutting edge, it is characterized in that, offers chip dividing groove on the described cutting edge.
2. tricorn bit according to claim 1 is characterized in that, described chip dividing groove is a plurality of.
3. tricorn bit according to claim 2 is characterized in that, described cutting edge is for comprising the first cutting edge and the second cutting edge, the setting of staggering of the chip dividing groove on the chip dividing groove on described the first cutting edge and described the second cutting edge.
4. tricorn bit according to claim 1 is characterized in that, described tricorn bit is hot die steel.
5. tricorn bit according to claim 4 is characterized in that, described tricorn bit is the H13 hot die steel through 1040 ℃ of quenchings and 570 ℃ of temper.
6. tricorn bit according to claim 1 is characterized in that, is provided with screw fastening device on the described tricorn bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105663543A CN103008734A (en) | 2012-12-24 | 2012-12-24 | Tricorn bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105663543A CN103008734A (en) | 2012-12-24 | 2012-12-24 | Tricorn bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103008734A true CN103008734A (en) | 2013-04-03 |
Family
ID=47958144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105663543A Pending CN103008734A (en) | 2012-12-24 | 2012-12-24 | Tricorn bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103008734A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260212A (en) * | 2014-09-10 | 2015-01-07 | 于海东 | Tool for graphite drilling |
| CN106077766A (en) * | 2016-06-30 | 2016-11-09 | 乐清市线天工具科技有限公司 | A kind of drill tip and drill bit |
| CN106991241A (en) * | 2017-04-11 | 2017-07-28 | 江苏科技大学 | A kind of cutter chip pocket sharpening interference Forecasting Methodology |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2244446Y (en) * | 1996-05-31 | 1997-01-08 | 高宝祥 | Internal cooling flat drill capable of toe index linking |
| US6270297B1 (en) * | 2000-01-28 | 2001-08-07 | Ati Properties, Inc. | Cutting tools and drill inserts with chip control geometry |
| US6371702B1 (en) * | 1999-08-18 | 2002-04-16 | Kennametal Pc Inc. | Spade blade drill and method of making |
| US20050100420A1 (en) * | 2003-11-07 | 2005-05-12 | Allied Machine & Engineering Corp. | Spade drill insert having curved cutting edges |
| US20070036622A1 (en) * | 2005-08-12 | 2007-02-15 | Yg-1 Co., Ltd. | Spade drill insert |
| WO2009093764A1 (en) * | 2008-01-22 | 2009-07-30 | Yg-1 Co., Ltd | Drill insert |
-
2012
- 2012-12-24 CN CN2012105663543A patent/CN103008734A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2244446Y (en) * | 1996-05-31 | 1997-01-08 | 高宝祥 | Internal cooling flat drill capable of toe index linking |
| US6371702B1 (en) * | 1999-08-18 | 2002-04-16 | Kennametal Pc Inc. | Spade blade drill and method of making |
| US6270297B1 (en) * | 2000-01-28 | 2001-08-07 | Ati Properties, Inc. | Cutting tools and drill inserts with chip control geometry |
| US20050100420A1 (en) * | 2003-11-07 | 2005-05-12 | Allied Machine & Engineering Corp. | Spade drill insert having curved cutting edges |
| US20070036622A1 (en) * | 2005-08-12 | 2007-02-15 | Yg-1 Co., Ltd. | Spade drill insert |
| WO2009093764A1 (en) * | 2008-01-22 | 2009-07-30 | Yg-1 Co., Ltd | Drill insert |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260212A (en) * | 2014-09-10 | 2015-01-07 | 于海东 | Tool for graphite drilling |
| CN106077766A (en) * | 2016-06-30 | 2016-11-09 | 乐清市线天工具科技有限公司 | A kind of drill tip and drill bit |
| CN106991241A (en) * | 2017-04-11 | 2017-07-28 | 江苏科技大学 | A kind of cutter chip pocket sharpening interference Forecasting Methodology |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20130403 |