JPH05253727A - End mill with oil hole - Google Patents
End mill with oil holeInfo
- Publication number
- JPH05253727A JPH05253727A JP8631592A JP8631592A JPH05253727A JP H05253727 A JPH05253727 A JP H05253727A JP 8631592 A JP8631592 A JP 8631592A JP 8631592 A JP8631592 A JP 8631592A JP H05253727 A JPH05253727 A JP H05253727A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- cutting
- oil hole
- end mill
- cutting oil
- 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
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/28—Features relating to lubricating or cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、マシニングセンター等
による機械加工においてエンドミル内部から切削油を供
給する油穴付きエンドミルに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an end mill with oil holes for supplying cutting oil from the inside of an end mill during machining by a machining center or the like.
【０００２】[0002]
【従来の技術】従来の油穴付きエンドミルは図２に示す
ような油穴が外周刃に沿ってねじれており、エンド刃部
の端面に切削油の出油口が設けてあるものや外周刃部に
切削油を供給させるためにたとえば図３に示すようにす
くい面に切削油の出油口が設けてあるものがある。2. Description of the Related Art A conventional end mill with an oil hole has an oil hole as shown in FIG. 2 which is twisted along the outer peripheral blade, and an end face of the end blade portion is provided with a cutting oil outlet or an outer peripheral blade. In order to supply the cutting oil to the portion, for example, as shown in FIG. 3, there is a rake face provided with a cutting oil outlet.
【０００３】これからは、外部から切削油の供給が難し
い場合においてエンドミル内部から切削油を供給するこ
とにより工具寿命を長めることがおもな目的である。前
者は素材の製造段階でねじれた油穴を有し、エンドミル
製作時はほぼ油穴を有しないものと変わりなく製作でき
る。また、後者は切削油の出油口の位置を自由設定でき
るため、優れた工具性能を有する。From now on, the main purpose is to extend the tool life by supplying the cutting oil from the inside of the end mill when it is difficult to supply the cutting oil from the outside. The former has twisted oil holes at the manufacturing stage of the material, and can be manufactured as if it had almost no oil holes when manufacturing the end mill. The latter has excellent tool performance because the position of the oil outlet of cutting oil can be freely set.
【０００４】[0004]
【発明が解決しようとする問題点】しかしながら、上述
の前者の場合切削油の出油口の位置がエンド刃部の端面
に決定されるため最も切削油を供給したい個所が供給不
足になり、寿命等工具性能的に問題があった。However, in the former case, since the position of the oil outlet of the cutting oil is determined on the end face of the end blade portion, the portion where the cutting oil should be supplied most becomes insufficient and the life is shortened. There was a problem in tool performance.
【０００５】また、後者の場合はエンドミル製作時に細
い油穴を設けるために製作が困難かつ、工数がかかると
いう問題があった。Further, in the latter case, there is a problem that it is difficult and time-consuming to manufacture because a fine oil hole is provided at the time of manufacturing the end mill.
【０００６】[0006]
【本発明の目的】本発明は以上の欠点を抑え、工具性能
的に優れ、かつ製作が容易な油穴付きエンドミルを提供
しようとするものである。An object of the present invention is to provide an end mill with an oil hole which suppresses the above drawbacks, is excellent in tool performance and is easy to manufacture.
【０００７】[0007]
【問題を解決するための手段】本発明は、上記の目的を
達成するためにあらかじめ切れ刃のねじれ角とは異なっ
たねじれ角の油穴を有し、切削油の出油口を希望する箇
所に設ける。また、切れ刃の数と同数の油穴を有し、上
記との相乗効果により製作が容易かつ工具性能を向上す
るという技術的手段を講じたものである。In order to achieve the above-mentioned object, the present invention has an oil hole having a helix angle different from the helix angle of a cutting edge in advance, and a location where a cutting oil outlet is desired. Set up. Further, it has the same number of oil holes as the number of cutting edges, and takes the technical means of facilitating the production and improving the tool performance by the synergistic effect with the above.
【０００８】[0008]
【作用】本発明を適用することにより、油穴のねじれ角
は素材の製造段階で設けるため、図２に示す従来品と同
等の工数で製作が可能となった。また、切削油の出油口
を自由に設定できる事から必要な個所への切削油の供給
が可能となり、さらに油穴のねじれ角によっては切削油
の出油口の形状が細長いだ円形を成し、切削油の供給範
囲が拡がり工具性能がより一層向上した。By applying the present invention, the twist angle of the oil hole is provided at the stage of manufacturing the raw material, so that it is possible to manufacture with the same number of steps as the conventional product shown in FIG. Also, since the cutting oil outlet can be set freely, it is possible to supply the cutting oil to the required places, and depending on the helix angle of the oil hole, the shape of the cutting oil outlet may be an elongated oval shape. However, the cutting oil supply range was expanded and the tool performance was further improved.
【０００９】なお、さらに油穴径が小さくても切削油の
出油口の面積を得ることができるため、外周切れ刃の数
が増加しても刃数と同数の油穴を有することが可能とな
り、全ての切れ刃に十分な切削油を供給することが可能
となった。Since the area of the oil outlet for cutting oil can be obtained even if the oil hole diameter is smaller, it is possible to have the same number of oil holes as the number of outer peripheral cutting edges even if the number is increased. Therefore, it became possible to supply sufficient cutting oil to all the cutting edges.
【００１０】[0010]
【実施例】図１は本発明の１実施例を示す。工具径１０
mm、２枚刃のエンドミルにおいて外周切れ刃のねじれ角
が３０゜に対し油穴のねじれ角を１５゜に設定したもの
である。FIG. 1 shows an embodiment of the present invention. Tool diameter 10
mm, the twist angle of the oil hole was set to 15 ° while the twist angle of the outer peripheral cutting edge was set to 30 ° in a 2-flute end mill.
【００１１】[0011]
【発明の効果】以上のように本発明によれば、製作にお
ける工数を増やすことなく、工具性能をより１層向上す
ることが可能になったのである。As described above, according to the present invention, it is possible to further improve the tool performance by one layer without increasing the number of manufacturing steps.
【図１】図１は、本発明品の１実施例を示し、その側面
図を示す。FIG. 1 shows one embodiment of the product of the present invention, showing a side view thereof.
【図２】図２は、従来品の１例を示し、その側面図を示
す。FIG. 2 is a side view showing an example of a conventional product.
【図３】図３は、従来品の他の１例を示し、その側面図
を示す。FIG. 3 is a side view showing another example of the conventional product.
１ 本体 ２ 油穴 ３ 出油口 θａ 外周切れ刃のねじれ角 θｂ 油穴のねじれ角 1 Body 2 Oil hole 3 Oil outlet θa Outer peripheral cutting edge twist angle θb Oil hole twist angle
Claims (2)
ルにおいて外周切れ刃のねじれ角に対し、油穴のねじれ
角が異なっていることを特徴とする油穴付きエンドミ
ル。1. An end mill with an oil hole, wherein the twist angle of the oil hole is different from that of the outer peripheral cutting edge in the end mill with an oil hole having a twist.
特徴とする請求項１記載の油穴付きエンドミル。2. The end mill with oil holes according to claim 1, characterized in that it has the same number of oil holes as the number of cutting edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8631592A JPH05253727A (en) | 1992-03-10 | 1992-03-10 | End mill with oil hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8631592A JPH05253727A (en) | 1992-03-10 | 1992-03-10 | End mill with oil hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05253727A true JPH05253727A (en) | 1993-10-05 |
Family
ID=13883404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8631592A Pending JPH05253727A (en) | 1992-03-10 | 1992-03-10 | End mill with oil hole |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05253727A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112006002926T5 (en) | 2006-11-30 | 2010-02-04 | Osg Corporation, Toyokawa | end mill |
| WO2010094264A1 (en) * | 2009-02-17 | 2010-08-26 | Gühring Ohg | Milling cutter with an internal coolant/lubricant supply |
-
1992
- 1992-03-10 JP JP8631592A patent/JPH05253727A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112006002926T5 (en) | 2006-11-30 | 2010-02-04 | Osg Corporation, Toyokawa | end mill |
| DE112006002926B4 (en) * | 2006-11-30 | 2010-09-09 | Osg Corporation, Toyokawa | end mill |
| WO2010094264A1 (en) * | 2009-02-17 | 2010-08-26 | Gühring Ohg | Milling cutter with an internal coolant/lubricant supply |
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