JPS58177211U - gun drill - Google Patents
gun drillInfo
- Publication number
- JPS58177211U JPS58177211U JP7146382U JP7146382U JPS58177211U JP S58177211 U JPS58177211 U JP S58177211U JP 7146382 U JP7146382 U JP 7146382U JP 7146382 U JP7146382 U JP 7146382U JP S58177211 U JPS58177211 U JP S58177211U
- Authority
- JP
- Japan
- Prior art keywords
- main body
- cutting edge
- radial direction
- gun drill
- distal end
- 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.)
- Pending
Links
Landscapes
- Drilling Tools (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のガンドリルの外観を表す正面図、第２図
はその左側面形状を拡大して表す左側面図、第３図は第
１図のチップ部の拡大図、第４図はこの従来のガンドリ
ルの作業原理図、第５図ａは本考案によるガンドリルの
一実施例のチップ部の外観を表す正面図、第５図すはそ
の左側面図、第６図はその作業原理図であり、
図中の符号で１１は油入、１２はチップ部、１３゛は切
刃部、！４は切屑排出溝、１５は被加工物である。Fig. 1 is a front view showing the external appearance of a conventional gun drill, Fig. 2 is a left side view showing an enlarged view of its left side shape, Fig. 3 is an enlarged view of the tip part of Fig. 1, and Fig. 4 is this. Fig. 5a is a front view showing the external appearance of the tip portion of an embodiment of the gun drill according to the present invention, Fig. 5 is a left side view thereof, and Fig. 6 is a drawing of the working principle of a conventional gun drill. Yes, in the figure, 11 is oil filled, 12 is tip part, 13゛ is cutting edge part, and so on! 4 is a chip discharge groove, and 15 is a workpiece.
Claims (1)
体の先端に形成され且つ中央から半径方向外周に向けて
延びる切刃部と、前記本体の内部に形成されると共にこ
の本体の先端に開口し且つ切削油が送給される油入と、
前記本体の外周にこの本体の長手方向に沿って形成され
た切屑排出用の溝とを備えたガンドリルにおいて、前記
本体の中央から半径方向外周に向けて延びる前記切刃部
の形状を円弧状に形成して逃げ角が半径方向外周側はど
大きくなるように設定したことを特徴とするガンドリル
。a rod-shaped main body whose base end is rotatably supported; a cutting edge formed at the distal end of the main body and extending from the center toward the outer circumference in the radial direction; and a cutting edge formed inside the main body and at the distal end of the main body. an oil container that is open to and into which cutting oil is supplied;
In the gun drill including a chip discharge groove formed along the longitudinal direction of the main body on the outer periphery of the main body, the shape of the cutting edge extending from the center of the main body toward the outer periphery in the radial direction is arcuate. A gun drill characterized in that the clearance angle is set to be larger on the outer circumferential side in the radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7146382U JPS58177211U (en) | 1982-05-18 | 1982-05-18 | gun drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7146382U JPS58177211U (en) | 1982-05-18 | 1982-05-18 | gun drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58177211U true JPS58177211U (en) | 1983-11-26 |
Family
ID=30081080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7146382U Pending JPS58177211U (en) | 1982-05-18 | 1982-05-18 | gun drill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58177211U (en) |
-
1982
- 1982-05-18 JP JP7146382U patent/JPS58177211U/en active Pending
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