JPH01106115U - - Google Patents
Info
- Publication number
- JPH01106115U JPH01106115U JP75388U JP75388U JPH01106115U JP H01106115 U JPH01106115 U JP H01106115U JP 75388 U JP75388 U JP 75388U JP 75388 U JP75388 U JP 75388U JP H01106115 U JPH01106115 U JP H01106115U
- Authority
- JP
- Japan
- Prior art keywords
- oil hole
- oil
- opens
- cutting edge
- gun drill
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Drilling Tools (AREA)
Description
第１図は本考案の第１の実施例を示す図でチツ
プ部外周面の展開図、第２図は第１図の―線
に沿う断面図、第３図は第２図の―線に沿う
断面図、第４図は本考案の第２の実施例を示す図
でチツプ部外周面の展開図、第５図は本考案の第
３の実施例を示す図でチツプ部の断面図、第６図
は従来のガンドリルの一例を示す側面図、第７図
は第６図の―線に沿う断面図である。
１……チツプ部、２，１２……油穴、３，１３
……副油穴、４，１４……逃げ溝、５，１５……
ウエアパツド部、６，１６……マージンランド部
、７，８，１７，１８……油溝。
Fig. 1 is a diagram showing the first embodiment of the present invention, and is a developed view of the outer circumferential surface of the chip, Fig. 2 is a sectional view taken along the - line of Fig. 1, and Fig. 3 is a cross-sectional view taken along the - line of Fig. 2. 4 is a diagram showing the second embodiment of the present invention and is a developed view of the outer peripheral surface of the tip portion; FIG. 5 is a diagram showing the third embodiment of the present invention and is a sectional view of the tip portion; FIG. 6 is a side view showing an example of a conventional gun drill, and FIG. 7 is a sectional view taken along the line -- in FIG. 6. 1...Tip part, 2, 12...Oil hole, 3, 13
... Sub-oil hole, 4, 14 ... Relief groove, 5, 15 ...
Wear pad part, 6, 16... Margin land part, 7, 8, 17, 18... Oil groove.
Claims (1)
ガンドリルにおいて、油穴の途中から分岐して刃
先外周面の逃げ溝に開口する副油穴を形成すると
ともに、逃げ溝に隣接するウエアパツド部および
マージンランド部にはその円周方向に沿つて油だ
め用の油溝を形成したことを特徴とするガンドリ
ル。 In a gun drill formed by penetrating an oil hole that opens on the tip surface of the cutting edge, a secondary oil hole is formed that branches from the middle of the oil hole and opens into a relief groove on the outer peripheral surface of the cutting edge, and a wear pad portion adjacent to the relief groove and a A gun drill characterized in that an oil groove for an oil sump is formed along the circumferential direction of the margin land.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988000753U JPH0529770Y2 (en) | 1988-01-07 | 1988-01-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988000753U JPH0529770Y2 (en) | 1988-01-07 | 1988-01-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01106115U true JPH01106115U (en) | 1989-07-17 |
| JPH0529770Y2 JPH0529770Y2 (en) | 1993-07-29 |
Family
ID=31200053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988000753U Expired - Lifetime JPH0529770Y2 (en) | 1988-01-07 | 1988-01-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0529770Y2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003502162A (en) * | 1999-06-21 | 2003-01-21 | サンドビック アクティエボラーグ | Support pad |
| EP1941960A1 (en) * | 2006-12-11 | 2008-07-09 | Fa. Kästner Präzisionswerkzeuge Gmbh | Boring tool, in particular twist drill |
| WO2009113207A1 (en) * | 2008-03-14 | 2009-09-17 | ユニタック株式会社 | Gun drill |
| JP2011056604A (en) * | 2009-09-08 | 2011-03-24 | Toshiba Mach Co Ltd | Gun drill tool, and device and method of machining deep hole |
| WO2011107081A1 (en) * | 2010-03-05 | 2011-09-09 | Botek Präzisionsbohrtechnik Gmbh | Guide gib |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4913475U (en) * | 1972-05-04 | 1974-02-04 | ||
| JPS59140119U (en) * | 1983-03-09 | 1984-09-19 | 三菱マテリアル株式会社 | Drilling tools |
-
1988
- 1988-01-07 JP JP1988000753U patent/JPH0529770Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4913475U (en) * | 1972-05-04 | 1974-02-04 | ||
| JPS59140119U (en) * | 1983-03-09 | 1984-09-19 | 三菱マテリアル株式会社 | Drilling tools |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003502162A (en) * | 1999-06-21 | 2003-01-21 | サンドビック アクティエボラーグ | Support pad |
| JP4689908B2 (en) * | 1999-06-21 | 2011-06-01 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | Support pad |
| EP1941960A1 (en) * | 2006-12-11 | 2008-07-09 | Fa. Kästner Präzisionswerkzeuge Gmbh | Boring tool, in particular twist drill |
| WO2009113207A1 (en) * | 2008-03-14 | 2009-09-17 | ユニタック株式会社 | Gun drill |
| JP2011056604A (en) * | 2009-09-08 | 2011-03-24 | Toshiba Mach Co Ltd | Gun drill tool, and device and method of machining deep hole |
| WO2011107081A1 (en) * | 2010-03-05 | 2011-09-09 | Botek Präzisionsbohrtechnik Gmbh | Guide gib |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0529770Y2 (en) | 1993-07-29 |