CN103008735B - PCD (pitch circle diameter) drill bit with chip breaker groove - Google Patents
PCD (pitch circle diameter) drill bit with chip breaker groove Download PDFInfo
- Publication number
- CN103008735B CN103008735B CN201210491047.3A CN201210491047A CN103008735B CN 103008735 B CN103008735 B CN 103008735B CN 201210491047 A CN201210491047 A CN 201210491047A CN 103008735 B CN103008735 B CN 103008735B
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- China
- Prior art keywords
- chip
- pcd
- drill bit
- cutter body
- cutter hub
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Links
- 239000012530 fluid Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003746 surface roughness Effects 0.000 abstract description 3
- 239000000110 cooling liquid Substances 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 abstract 1
- 238000006748 scratching Methods 0.000 abstract 1
- 230000002393 scratching effect Effects 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Landscapes
- Drilling Tools (AREA)
Abstract
The invention discloses a PCD (pitch circle diameter) drill bit with a chip breaker groove, which comprises a shank, a cutter body and PCD blades, wherein two cooling liquid holes are formed in the axial direction of the cutter body and penetrate through the shank and the cutter body; two chip pockets are formed on the cutter body in the axial direction thereof, are oppositely symmetrical in an end-view, occupy one quadrant of circle; the two PCD blades are embedded at the front end of the cutter body as drill lips in a welding way; the vertex angle at the drill tip is 130 degrees; the relief angle at the end edge of the drill bit is 8 to 12 degrees; the angle of a chip separating groove is 10 degrees; a PCD round blade is 0.3 mm; the relief angle of the round blade is 15 degrees; a round blade of the cutter body is 0.5 mm; and a chip breaker groove which has a 15-degree front angle and the width of 1 mm is formed at the place which is 0.11 mm near the end edge of the drill bit on a PCD upper surface. When the PCD drill bit is used for cutting machining, as the end edge of the drill bit has the function of chip breaking, the original long chip can be turned into short chip to be smoothly discharged from a chip space without scratching a hole wall, so that the surface roughness of the hole can be improved, the accuracy class requirement of the hole can be easily met, a lot of machining time can be saved, and the production cost can be reduced.
Description
Technical field
The present invention relates to a kind of machining tool, particularly a kind of PCD drill bit with chip-breaker.
Background technology
In fine aluminium or the low aluminium alloy valve IT7 class precision hole machined of silicon content, due to material softer, glue, not easily chip breaking, the rectangular fines occurred during drilling can be deposited in cutter chip area for a long time, and can be wrapped on cutter, scratch hole wall, cause the table change roughness in hole to meet drawing requirement, in order to can surface roughness be promoted, use reamer to revise, efficiency is low, cannot meet the requirement of production in enormous quantities.
Summary of the invention
Instant invention overcomes deficiency of the prior art, a kind of PCD drill bit with chip-breaker is provided.
In order to solve the technical problem of above-mentioned existence, the present invention is achieved by the following technical solutions:
A kind of PCD drill bit with chip-breaker, comprise handle of a knife, cutter hub, PCD blade, axially there are two to cool fluid apertures along cutter hub and run through handle of a knife and cutter hub, cutter hub axially has two chip pockets along it, chip pocket is phase-inversion symmetric in end-view, account for quadrant, there is two panels PCD blade to inlay and be welded on cutter hub front end as drill lip, apex point drift angle is 130 degree, drill bit edge clearance angle is 8-12 degree, chip dividing groove angle is 10 degree, PCD circle sword is 0.3mm, circle edge clearance angle 15 degree, cutter hub circle sword is 0.5mm, on PCD upper surface, distance drill bit sword 0.1mm place has 15 degree of anterior angles, width is the chip-breaker of 1mm.
Owing to adopting technique scheme, a kind of PCD drill bit with chip-breaker provided by the invention, compared with prior art has such beneficial effect:
During by machining of the present invention, the chip produced deforms through chip-breaker and is forced to fracture. because drill bit cutlery has chip breaking effect, original long bits are made to become short bits, discharged by chip area swimmingly, be unlikely to scratch hole wall, improve the surface roughness in hole, also can meet the accuracy class requirement in hole easily, save a large amount of process times, reduce production cost.
Accompanying drawing explanation
Fig. 1 is a kind of PCD drill bit front view with chip-breaker provided by the invention;
Fig. 2 is a kind of PCD drill bit side view with chip-breaker provided by the invention;
Fig. 3 is K direction view in Fig. 1.
In figure: 1-PCD blade, 2-cutter hub, 3-handle of a knife
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail: this
A kind of PCD drill bit with chip-breaker, as Figure 1-3, comprise handle of a knife 3, cutter hub 2, PCD blade 1, axially there are two to cool fluid apertures along cutter hub 2 and run through handle of a knife 3 and cutter hub 2, cutter hub 2 axially has two chip pockets along it, chip pocket is phase-inversion symmetric in end-view, account for quadrant, there is two panels PCD blade 1 to inlay and be welded on cutter hub front end as drill lip, apex point drift angle is 130 degree, drill bit edge clearance angle is 8-12 degree, chip dividing groove angle is 10 degree, PCD circle sword is 0.3mm, circle edge clearance angle 15 degree, cutter hub 2 circle sword is 0.5mm, on PCD upper surface, distance drill bit sword 0.1mm place has 15 degree of anterior angles, width is the chip-breaker of 1mm.
Claims (1)
1. the PCD drill bit with chip-breaker, it is characterized in that: it comprises handle of a knife, cutter hub, PCD blade, axially there are two to cool fluid apertures along cutter hub and run through handle of a knife and cutter hub, cutter hub axially has two chip pockets along it, chip pocket is phase-inversion symmetric in end-view, account for quadrant, there is two panels PCD blade to inlay and be welded on cutter hub front end as drill lip, apex point drift angle is 130 degree, drill bit edge clearance angle is 8-12 degree, chip dividing groove angle is 10 degree, PCD circle sword is 0.3mm, circle edge clearance angle 15 degree, cutter hub circle sword is 0.5mm, on PCD upper surface, distance drill bit sword 0.1mm place has 15 degree of anterior angles, width is the chip-breaker of 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210491047.3A CN103008735B (en) | 2012-11-27 | 2012-11-27 | PCD (pitch circle diameter) drill bit with chip breaker groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210491047.3A CN103008735B (en) | 2012-11-27 | 2012-11-27 | PCD (pitch circle diameter) drill bit with chip breaker groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103008735A CN103008735A (en) | 2013-04-03 |
| CN103008735B true CN103008735B (en) | 2015-01-21 |
Family
ID=47958145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210491047.3A Active CN103008735B (en) | 2012-11-27 | 2012-11-27 | PCD (pitch circle diameter) drill bit with chip breaker groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103008735B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358404B (en) * | 2012-03-28 | 2017-03-29 | 博世电动工具（中国）有限公司 | Drilling tool and its drill bit |
| CN103192102B (en) * | 2013-04-15 | 2016-12-28 | 北京沃尔德金刚石工具股份有限公司 | A kind of superhard cutting blade of band chip-breaker |
| CN104174906A (en) * | 2013-05-21 | 2014-12-03 | 苏州锑玛精密机械有限公司 | Forced-scrap-cutting internal-cooled drill |
| CN105689764A (en) * | 2016-04-26 | 2016-06-22 | 张丹嫣 | Diamond drill bit |
| CN113231693A (en) * | 2021-05-31 | 2021-08-10 | 河北华北柴油机有限责任公司 | A new type of reamer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202254U (en) * | 1985-06-11 | 1986-10-08 | 董希仁 | Single edge rotary combined drill with center blade-inlaid |
| CN2037278U (en) * | 1988-09-23 | 1989-05-10 | 哈尔滨第二工具厂 | Dual blade rotary centre flat-inlaid compound bit |
| CN201267890Y (en) * | 2008-09-28 | 2009-07-08 | 宁波华刃工具有限公司 | Multi-edge nib chip-breaker |
| US7575401B1 (en) * | 2004-11-18 | 2009-08-18 | Precorp, Inc. | PCD drill for composite materials |
| CN102451930A (en) * | 2010-10-19 | 2012-05-16 | 钴碳化钨硬质合金公司 | Rotary cutting tool having pcd cutting tip |
| DE102011117148A1 (en) * | 2011-10-28 | 2013-05-02 | Kennametal Inc. | Rotary tool and method of a rotary tool |
-
2012
- 2012-11-27 CN CN201210491047.3A patent/CN103008735B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202254U (en) * | 1985-06-11 | 1986-10-08 | 董希仁 | Single edge rotary combined drill with center blade-inlaid |
| CN2037278U (en) * | 1988-09-23 | 1989-05-10 | 哈尔滨第二工具厂 | Dual blade rotary centre flat-inlaid compound bit |
| US7575401B1 (en) * | 2004-11-18 | 2009-08-18 | Precorp, Inc. | PCD drill for composite materials |
| CN201267890Y (en) * | 2008-09-28 | 2009-07-08 | 宁波华刃工具有限公司 | Multi-edge nib chip-breaker |
| CN102451930A (en) * | 2010-10-19 | 2012-05-16 | 钴碳化钨硬质合金公司 | Rotary cutting tool having pcd cutting tip |
| DE102011117148A1 (en) * | 2011-10-28 | 2013-05-02 | Kennametal Inc. | Rotary tool and method of a rotary tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103008735A (en) | 2013-04-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190418 Address after: 116620 No. 192 Haiming Road, Shilibao Street, Dalian Free Trade Zone, Liaoning Province Patentee after: BOAO PRECISION INDUSTRIAL (DALIAN) Co.,Ltd. Address before: 116600 No. 13 Tianrun Road, Dalian Economic and Technological Development Zone, Liaoning Province Patentee before: DALIAN DEVELOPMENT ZONE YIDA TOOL CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A PCD drill bit with chip groove Effective date of registration: 20231205 Granted publication date: 20150121 Pledgee: China Merchants Bank Co.,Ltd. Dalian Branch Pledgor: BOAO PRECISION INDUSTRIAL (DALIAN) Co.,Ltd. Registration number: Y2023210000332 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |