JPS6338961Y2 - - Google Patents
Info
- Publication number
- JPS6338961Y2 JPS6338961Y2 JP1983008815U JP881583U JPS6338961Y2 JP S6338961 Y2 JPS6338961 Y2 JP S6338961Y2 JP 1983008815 U JP1983008815 U JP 1983008815U JP 881583 U JP881583 U JP 881583U JP S6338961 Y2 JPS6338961 Y2 JP S6338961Y2
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- workpiece
- cutting
- tip
- tool
- 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.)
- Expired
Links
- 239000007779 soft material Substances 0.000 claims description 2
- 238000003754 machining Methods 0.000 claims 1
- 230000001154 acute effect Effects 0.000 description 2
- 229910001234 light alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
Description
【考案の詳細な説明】
本考案は、特にアルミニウム材等の軽合金材料
を削る仕上げ用の切削工具に関するものである。[Detailed Description of the Invention] The present invention relates to a cutting tool for finishing, particularly for cutting light alloy materials such as aluminum materials.
従来、この種の切削工具にあつては、軽合金や
軟質材を切削加工する場合切屑が加工物に巻き付
いてその切屑を取り外す作業は容易ではなく、ま
た巻き付いた切屑で加工物の加工表面に傷を付け
る欠点があつた。 Conventionally, with this type of cutting tool, when cutting light alloys and soft materials, chips wrap around the workpiece, making it difficult to remove them, and the wrapped chips can also damage the surface of the workpiece. It had flaws that caused damage.
本考案は、刃先部に溝を設ける等、刃先部の形
状を変えることにより切屑の流れを良くして上記
欠点を解消した切削工具を提供する目的にある。
そして、その目的達成のため、本考案に係る切削
工具は、先端をＬ字状に突出して刃先部とし、該
刃先部のすくい面を切削工具の上面１ａから下面
１ｂに亘つて湾曲くぼみ状としたことである。 The object of the present invention is to provide a cutting tool that eliminates the above-mentioned drawbacks by improving the flow of chips by changing the shape of the cutting edge, such as by providing a groove in the cutting edge.
In order to achieve this purpose, the cutting tool according to the present invention has an L-shaped tip that protrudes at the tip to form a cutting edge, and a rake surface of the cutting edge that extends from the upper surface 1a to the lower surface 1b of the cutting tool into a curved concave shape. That's what I did.
以下に本考案の実施例を図にもとずいてさらに
詳述する。図中符号１で示す旋削工具は、たとえ
ば一辺25mmの角棒状であり、旋削工具１の上面１
ａ先端からその下面１ｂにかけて断面コ字状の溝
部２が設けられる如く、旋削工具１の先端をＬ字
状に突出して刃先部４とする。この溝部２は、旋
削工具１の軸線、すなわち軸方向の中心線に対し
て鋭角な方向に設けられ、その深さはたとえば15
mm程である。さらに、溝部２の２つの側壁面のう
ち旋削工具１先端側に位置する壁面は刃先部４の
上面３となり、刃先部４は該上面３と刃先直下の
フランク５との角、すなわち刃先角αを鋭角に形
成している。本実施例では、第３図に示すように
刃先部４は旋削中の刃先を通る仕上り面の接線ｌ
とその刃先直下のフランク５との角、すなわち逃
げ角βを5゜、接線ｌと上面３との角、すなわち削
り角γが25゜に形成されているので、刃先角αは
20゜になつている。さらに、上面３には切削工具
１の上面１ａから下面１ｂに亘つて、すなわち刃
先部４の切刃６から下面１ｂに至るまで、加工物
の切屑の流れ方向（第１図矢印Ａ方向）に湾曲く
ぼみ形状にした浅い溝、すなわちすくい面７が設
けられる。そのすくい面７の先端切刃６は緩い湾
曲状に形成されている。 Embodiments of the present invention will be described in more detail below with reference to the drawings. The turning tool indicated by reference numeral 1 in the figure is, for example, square bar-shaped with a side of 25 mm, and the upper surface 1 of the turning tool 1 is
The tip of the turning tool 1 protrudes in an L-shape to form a cutting edge portion 4 such that a groove portion 2 having a U-shaped cross section is provided from the tip a to the lower surface 1b thereof. This groove portion 2 is provided in a direction at an acute angle to the axis of the turning tool 1, that is, the center line in the axial direction, and its depth is, for example, 15 mm.
It is about mm. Furthermore, of the two side wall surfaces of the groove portion 2, the wall surface located on the tip side of the turning tool 1 becomes the upper surface 3 of the cutting edge portion 4, and the cutting edge portion 4 is formed at an angle between the upper surface 3 and the flank 5 immediately below the cutting edge, that is, a cutting edge angle α is formed at an acute angle. In this embodiment, as shown in FIG.
The angle between the and the flank 5 directly below the cutting edge, that is, the clearance angle β, is 5°, and the angle between the tangent 1 and the upper surface 3, that is, the cutting angle γ, is 25°, so the cutting edge angle α is
It's becoming 20 degrees. Further, on the upper surface 3, from the upper surface 1a to the lower surface 1b of the cutting tool 1, that is, from the cutting edge 6 of the cutting edge portion 4 to the lower surface 1b, there is a surface extending in the direction of the flow of chips from the workpiece (direction of arrow A in FIG. 1). A shallow groove or rake face 7 in the shape of a curved depression is provided. The tip cutting edge 6 of the rake face 7 is formed into a gently curved shape.
そこで、加工物を切削すると、鋭角の刃先部４
で切削された切屑は刃先部４のすくい面７に沿つ
てすくい面７の末端近くまで流れ、切削工具１の
下面１ｂから下方へ流し出されてゆく。 Therefore, when cutting the workpiece, the sharp cutting edge 4
The chips thus cut flow along the rake face 7 of the cutting edge portion 4 to near the end of the rake face 7, and are flowed downward from the lower surface 1b of the cutting tool 1.
したがつて、本考案に係る切屑工具によれば、
切屑は刃先部のすくい面を通つて切削工具の下面
から円滑に流し出されてゆくので、切屑の加工物
への巻き付きを皆無にすることができ、加工物の
加工表面に傷を付けることなく良好な仕上面を得
ることができる利点がある。 Therefore, according to the chip cutting tool according to the present invention,
The chips are smoothly flowed out from the underside of the cutting tool through the rake surface of the cutting edge, eliminating any chance of the chips getting wrapped around the workpiece, without damaging the surface of the workpiece. There is an advantage that a good finished surface can be obtained.
第１図は本考案の実施例を示す切削工具の先端
部斜視図、第２図はその切削工具の平面図、第３
図はその切削工具の側面図、第４図はその切削工
具の正面図である。
１……切削工具、１ａ……上面、１ｂ……下
面、２……溝、４……刃先部、７……すくい面。
FIG. 1 is a perspective view of the tip of a cutting tool showing an embodiment of the present invention, FIG. 2 is a plan view of the cutting tool, and FIG.
The figure is a side view of the cutting tool, and FIG. 4 is a front view of the cutting tool. 1... Cutting tool, 1a... Upper surface, 1b... Lower surface, 2... Groove, 4... Cutting edge portion, 7... Rake surface.
Claims (1)
工具の加工側先端部に上下面に貫通されたコ字状
溝部を形成し、 該溝部先端は旋削される加工物の軸方向に沿つ
て加工物側へ張り出し、かつコ字状溝部側に向い
た円弧状部位を形成し、該円弧状部位はその上部
を刃先部となし、コ字状溝内でこの刃先部から下
面に向つて加工物に接する接線方向に対し傾斜角
をなしたくさび状に形成し、 前記刃先部のすくい面を上部から下部に亘つて
円弧状のくぼみ面を形成してすくい面とした旋削
工作機械の旋削工具。[Claims for Utility Model Registration] A turning tool for machining soft materials, in which a U-shaped groove is formed at the tip of the turning tool on the processing side, and the tip of the groove penetrates the top and bottom of the workpiece. An arc-shaped part is formed that extends toward the workpiece along the axial direction and faces toward the U-shaped groove, and the upper part of the arc-shaped part serves as a cutting edge. Turning in which the rake surface of the cutting edge is formed into a wedge shape with an inclination angle to the tangential direction of contact with the workpiece toward the lower surface, and the rake surface of the cutting edge portion is formed with an arc-shaped concave surface extending from the upper part to the lower part. Machine tool turning tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP881583U JPS59116105U (en) | 1983-01-25 | 1983-01-25 | turning tool of turning machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP881583U JPS59116105U (en) | 1983-01-25 | 1983-01-25 | turning tool of turning machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59116105U JPS59116105U (en) | 1984-08-06 |
| JPS6338961Y2 true JPS6338961Y2 (en) | 1988-10-13 |
Family
ID=30140294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP881583U Granted JPS59116105U (en) | 1983-01-25 | 1983-01-25 | turning tool of turning machine tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59116105U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS479429U (en) * | 1971-02-22 | 1972-10-04 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6131765Y2 (en) * | 1981-05-06 | 1986-09-16 |
-
1983
- 1983-01-25 JP JP881583U patent/JPS59116105U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS479429U (en) * | 1971-02-22 | 1972-10-04 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59116105U (en) | 1984-08-06 |
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