JPS61120410U - - Google Patents
Info
- Publication number
- JPS61120410U JPS61120410U JP327185U JP327185U JPS61120410U JP S61120410 U JPS61120410 U JP S61120410U JP 327185 U JP327185 U JP 327185U JP 327185 U JP327185 U JP 327185U JP S61120410 U JPS61120410 U JP S61120410U
- Authority
- JP
- Japan
- Prior art keywords
- grooves
- drill
- chip
- utility
- groove
- 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
Classifications
-
- 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
- B23B2251/406—Flutes, i.e. chip conveying grooves of special form not otherwise provided for
Landscapes
- Drilling Tools (AREA)
Description
第１図は本考案に係るニツク溝付きドリルの要
部正面図、第２図は同底面図、第３図は同拡大横
断面図、第４図は別の実施例を示す底面図、第５
図は従来のドリルを示す底面図である。
１……ドリル本体、２ａ，２ｂ……切屑排出溝
、３ａ，３ｂ……切れ刃、４ａ，４ｂ……逃げ面
、７〜１０……ニツク溝。
Fig. 1 is a front view of essential parts of a drill with a groove according to the present invention, Fig. 2 is a bottom view of the same, Fig. 3 is an enlarged cross-sectional view of the same, and Fig. 4 is a bottom view showing another embodiment. 5
The figure is a bottom view of a conventional drill. 1... Drill body, 2a, 2b... Chip discharge groove, 3a, 3b... Cutting edge, 4a, 4b... Flank surface, 7-10... Nick groove.
Claims (1)
ａ，３ｂから前記溝２ａ，２ｂのねじれ方向に平
行して連続的に延びる数条のニツク溝７〜１０が
設けられているニツク溝付きドリル。 (2) 両側の切れ刃３ａ，３ｂに形成される前記
ニツク溝７〜１０が互いに半径方向の位相を異に
し、その回転移動軌跡７′〜１０′がそれぞれ異
なるように構成されている実用新案登録請求の範
囲第１項記載のニツク溝付きドリル。 (3) 前記ニツク溝７〜１０を設けた切屑排出溝
２ａ，２ｂの溝面の横断面形状が滑らかな波形状
になつている実用新案登録請求の範囲第１項又は
第２項記載のニツク溝付きドリル。[Scope of claim for utility model registration] (1) A cutting edge 3 is provided on the groove surface of the chip discharge grooves 2a and 2b.
This drill is provided with several grooves 7 to 10 that extend continuously from a and 3b in parallel to the twisting direction of the grooves 2a and 2b. (2) A utility model in which the grooves 7 to 10 formed on the cutting edges 3a and 3b on both sides have mutually different phases in the radial direction, and their rotational movement trajectories 7' to 10' are different from each other. A drill with a groove as claimed in claim 1. (3) The chip according to claim 1 or 2, wherein the cross-sectional shape of the groove surface of the chip discharge grooves 2a and 2b provided with the chip grooves 7 to 10 is a smooth wave shape. Grooved drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP327185U JPS61120410U (en) | 1985-01-14 | 1985-01-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP327185U JPS61120410U (en) | 1985-01-14 | 1985-01-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61120410U true JPS61120410U (en) | 1986-07-29 |
Family
ID=30477742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP327185U Pending JPS61120410U (en) | 1985-01-14 | 1985-01-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61120410U (en) |
-
1985
- 1985-01-14 JP JP327185U patent/JPS61120410U/ja active Pending
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