JPH0451316U - - Google Patents
Info
- Publication number
- JPH0451316U JPH0451316U JP9225190U JP9225190U JPH0451316U JP H0451316 U JPH0451316 U JP H0451316U JP 9225190 U JP9225190 U JP 9225190U JP 9225190 U JP9225190 U JP 9225190U JP H0451316 U JPH0451316 U JP H0451316U
- Authority
- JP
- Japan
- Prior art keywords
- axial direction
- diameter
- supply hole
- rear end
- stepped
- 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
- 238000005553 drilling Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims 2
- 239000010730 cutting oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Drilling Tools (AREA)
Description
第１図は、本考案段付きの穴あけ工具における
一実施例を示す要部の正面図、第２図は、供給穴
および油穴の位置関係を示す断面図、第３図は、
供給穴および油穴の穴径関係を示す説明図、第４
図は、第３図の変形例を示す説明図である。
１……穴あけ工具、２……工具本体、６……フ
ルート溝、７……供給穴、８ａ，８ｂ，８ｃ……
油穴。
FIG. 1 is a front view of the main parts of an embodiment of the stepped drilling tool of the present invention, FIG. 2 is a sectional view showing the positional relationship between the supply hole and the oil hole, and FIG.
Explanatory diagram showing the hole diameter relationship of the supply hole and the oil hole, No. 4
The figure is an explanatory diagram showing a modification of FIG. 3. 1... Drilling tool, 2... Tool body, 6... Flute groove, 7... Supply hole, 8a, 8b, 8c...
oil hole.
Claims (1)
刃先径が段状に増加するとともに、工具本体２の
軸方向に向かうフルート溝６の起立壁面には、軸
心部分に穿設された切削油の供給穴７から分岐す
る油穴８ａ，８ｂ，８ｃ…が開口する段付きの穴
あけ工具において、 前記供給穴７は、先端側から後端側に向かう軸
方向基準で、その穴径が段状またはテーパ状に増
加するようになつており、 前記油穴８ａ，８ｂ，８ｃ…は、その穴径が、
先端側から後端側に向かう軸方向基準で、供給穴
７の穴径に応じて順次増加していることを特徴と
する段付きの穴あけ工具。[Scope of claim for utility model registration] In the axial direction from the tip to the rear end of the tool body 2,
As the diameter of the cutting edge increases stepwise, oil holes 8a, 8b, which branch from the cutting oil supply hole 7 drilled in the axial center portion, are formed in the upright wall surface of the flute groove 6 facing in the axial direction of the tool body 2. In the stepped drilling tool with openings 8c, the diameter of the supply hole 7 increases in a stepped or tapered manner with respect to the axial direction from the leading end to the rear end, and The oil holes 8a, 8b, 8c... have a hole diameter of
A stepped drilling tool characterized in that the diameter of the supply hole 7 increases sequentially based on the axial direction from the leading end to the rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9225190U JP2541268Y2 (en) | 1990-08-31 | 1990-08-31 | Stepped drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9225190U JP2541268Y2 (en) | 1990-08-31 | 1990-08-31 | Stepped drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0451316U true JPH0451316U (en) | 1992-04-30 |
| JP2541268Y2 JP2541268Y2 (en) | 1997-07-16 |
Family
ID=31828560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9225190U Expired - Fee Related JP2541268Y2 (en) | 1990-08-31 | 1990-08-31 | Stepped drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2541268Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100869315B1 (en) * | 2007-05-17 | 2008-11-18 | 김병수 | A valve body manufacturing apparatus of load sensing proportioning valve and valve body manufacturing process using the same |
| JP2012521897A (en) * | 2009-03-30 | 2012-09-20 | グーリング オーハーゲー | Multi-bevel step tool driven by rotation |
-
1990
- 1990-08-31 JP JP9225190U patent/JP2541268Y2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100869315B1 (en) * | 2007-05-17 | 2008-11-18 | 김병수 | A valve body manufacturing apparatus of load sensing proportioning valve and valve body manufacturing process using the same |
| JP2012521897A (en) * | 2009-03-30 | 2012-09-20 | グーリング オーハーゲー | Multi-bevel step tool driven by rotation |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2541268Y2 (en) | 1997-07-16 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S533 | Written request for registration of change of name |
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| R360 | Written notification for declining of transfer of rights |
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| R370 | Written measure of declining of transfer procedure |
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| S533 | Written request for registration of change of name |
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| R350 | Written notification of registration of transfer |
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| LAPS | Cancellation because of no payment of annual fees |