KR101280912B1 - 홑날 드릴비트의 찌꺼기 배출홈 성형방법 - Google Patents
홑날 드릴비트의 찌꺼기 배출홈 성형방법 Download PDFInfo
- Publication number
- KR101280912B1 KR101280912B1 KR1020100059389A KR20100059389A KR101280912B1 KR 101280912 B1 KR101280912 B1 KR 101280912B1 KR 1020100059389 A KR1020100059389 A KR 1020100059389A KR 20100059389 A KR20100059389 A KR 20100059389A KR 101280912 B1 KR101280912 B1 KR 101280912B1
- Authority
- KR
- South Korea
- Prior art keywords
- blade
- discharge groove
- drill
- drill bit
- residue discharge
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
- B24B19/04—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for fluting drill shanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/24—Overall form of drilling tools
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
Description
도2는 도1의 A부분을 확대한 확대도이다.
도3은 본 발명의 또 다른 실시예의 국부 측시도이다.
도4는 본 발명의 또 다른 실시예의 사시도이다.
11 : 정점
12 : 절삭칼날
13 : 찌꺼기 배출홈
131 : 제1 찌꺼기 배출홈
132 : 제2 찌꺼기 배출홈
2 : 칼날자루부
Claims (4)
- 홑날 드릴비트의 찌꺼기 배출홈 성형방법에 관한 것으로서, 상기 드릴비트에는 드릴 칼날부를 설치하고, 상기 드릴 칼날부의 한 끝에는 칼날자루부를 연결 설치하고, 상기 칼날자루부에서 멀리 떨어진 상기 드릴 칼날부의 끝단 정점 부분에서 기울어진 방향으로 절삭칼날이 뻗어나와 설치되고, 상기 절삭칼날의 한 측은 2차 연마방식으로 상기 드릴 칼날부 표면에 찌꺼기 배출홈을 연마해 내고, 상기 찌꺼기 배출홈은 절삭칼날의 한측으로부터 칼날자루부 쪽을 향해 회전하는 형태로 형성하고,
상기 2차 연마방식은,
상기 절삭칼날의 정점 부분에서 상기 칼날자루를 향해 회전하면서 제1 찌꺼기 배출홈을 연마해 내는 단계; 및
이어서 제1 찌꺼기 배출홈에서 멀리 떨어진 정점 부분에서 상기 칼날자루를 향해 회전하면서 제2 찌꺼기 배출홈을 연마해 내고, 제1 찌꺼기 배출홈과 제2 찌꺼기 배출홈은 병렬로 배열되어 서로 통해 있는 형태로 형성되는 단계를 포함하고,
상기 제1 찌꺼기 배출홈과 제2 찌꺼기 배출홈은 드릴 칼날부의 정점에서 부분적으로 겹쳐지는 형상이 되며, 또한 겹치는 부분이 칼날자루를 향해 감소됨으로써 상기 제1 찌꺼기 배출홈과 제2 찌꺼기 배출홈은 칼날자루를 향해 회전하면서 점점 확대되는 형상이 되어, 찌꺼기 배출홈이 드릴 칼날부 끝단에서 칼날자루를 향해 넓이가 점점 커지는 형상으로 형성되고,
찌꺼기 배출홈의 깊이가 드릴 칼날부의 정점에서 칼날자루를 향해 점점 얕아지기 때문에, 드릴 칼날부의 찌꺼기 배출홈 중앙에 형성된 드릴심은 정점 부분에서 칼날자루부를 향해 점점 확대되어가는 테이퍼(taper) 형상으로 형성되는 것을 특징으로 하는 홑날 드릴비트의 찌꺼기 배출홈 성형방법.
- 삭제
- 삭제
- 제1항에 있어서,
상기 제2 찌꺼기 배출홈의 회전 연마 각도는 상기 제1 찌꺼기 배출홈의 회전 연마 각도보다 큰 것을 특징으로 하는 홑날 드릴비트의 찌꺼기 배출홈 성형방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100059389A KR101280912B1 (ko) | 2010-06-23 | 2010-06-23 | 홑날 드릴비트의 찌꺼기 배출홈 성형방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100059389A KR101280912B1 (ko) | 2010-06-23 | 2010-06-23 | 홑날 드릴비트의 찌꺼기 배출홈 성형방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20110139359A KR20110139359A (ko) | 2011-12-29 |
KR101280912B1 true KR101280912B1 (ko) | 2013-07-05 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020100059389A Active KR101280912B1 (ko) | 2010-06-23 | 2010-06-23 | 홑날 드릴비트의 찌꺼기 배출홈 성형방법 |
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KR (1) | KR101280912B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110424897B (zh) * | 2019-08-27 | 2024-06-07 | 中铁第四勘察设计院集团有限公司 | 后扩底钻头 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003311522A (ja) * | 2002-04-26 | 2003-11-05 | Sumitomo Electric Ind Ltd | 1枚刃ドリル |
KR20040020853A (ko) * | 2002-09-03 | 2004-03-09 | 미쓰비시 마테리알 가부시키가이샤 | 드릴 및 그 제조방법 |
-
2010
- 2010-06-23 KR KR1020100059389A patent/KR101280912B1/ko active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003311522A (ja) * | 2002-04-26 | 2003-11-05 | Sumitomo Electric Ind Ltd | 1枚刃ドリル |
KR20040020853A (ko) * | 2002-09-03 | 2004-03-09 | 미쓰비시 마테리알 가부시키가이샤 | 드릴 및 그 제조방법 |
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KR20110139359A (ko) | 2011-12-29 |
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