JPH0740125A - Throwaway type milling cutter - Google Patents
Throwaway type milling cutterInfo
- Publication number
- JPH0740125A JPH0740125A JP20895893A JP20895893A JPH0740125A JP H0740125 A JPH0740125 A JP H0740125A JP 20895893 A JP20895893 A JP 20895893A JP 20895893 A JP20895893 A JP 20895893A JP H0740125 A JPH0740125 A JP H0740125A
- Authority
- JP
- Japan
- Prior art keywords
- chip
- milling cutter
- chips
- front side
- type milling
- 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
Landscapes
- Auxiliary Devices For Machine Tools (AREA)
- Milling Processes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、スローアウエイ式フラ
イスに関するもので、さらに詳細には、フライス自体が
比較的大形で、切屑排出量の高いフライス削りに供され
るフライスであって、その切屑の排出性を大きく向上さ
せたフライスに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a throw-away type milling machine, and more particularly to a milling machine which is relatively large in size and is used for milling with high chip discharge amount. The present invention relates to a milling cutter having a greatly improved chip discharging property.
【０００２】[0002]
【従来の技術】従来、例えば特公昭６２−１９９６７号
公報に開示されている如く、円盤状のフライス本体の外
周側辺部にチップポケットを形成し、このチップポケッ
トへチップを挿入すると共に、クサビとボルトなど機械
的手段によってチップを該ポケット内に固定し、このチ
ップの前面側に切屑排出用の凹部を形成させたフライス
がある。 −１−2. Description of the Related Art Conventionally, as disclosed in, for example, Japanese Patent Publication No. 62-19967, a chip pocket is formed on the outer peripheral side of a disk-shaped milling cutter, and the chip is inserted into this chip pocket. There is a milling cutter in which a chip is fixed in the pocket by mechanical means such as a bolt and a recess for discharging chips is formed on the front side of the chip. -1-
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記し
た従来型のフライスに用いられている切屑排出用の凹部
では、切削量が大で、しかも切屑の排出量が多い非鉄金
属などを切削する大形のフライスに前々記した従来型の
フライスにみられる切屑排出用の凹部を形成すれば、被
削材の面と凹部の壁との間隔がきわめて狭いためにボリ
ウムのある切屑は該面と該壁との間で圧縮され、これが
要因となって切屑詰まりを誘発して切削性を大きく阻害
するのと同時に、被削面の精度を大きく低下させるもの
である。However, in the chip discharging recess used in the above-described conventional type milling cutter, a large size for cutting a non-ferrous metal or the like, which has a large cutting amount and a large chip discharging amount, is used. If a recess for discharging chips, which is found in the conventional type of milling machine described earlier, is formed in the milling cutter, the chip with the volume is formed on the surface because the gap between the surface of the work material and the wall of the recess is extremely small. It is compressed against the wall, which causes chip clogging and greatly impairs machinability, and at the same time greatly reduces the accuracy of the work surface.
【０００４】[0004]
【課題を解決するための手段】本発明は、前記した課題
を下記する手段によって解決させたものである。The present invention has solved the above-mentioned problems by the following means.
【０００５】つまり、フライス本体に複数の突出部を形
成し、この突出部の外周側辺部にチップを着脱自在に固
着させるのと共に、前記チップの前方側に切屑案内部を
設け、この案内部の前面側に第１の曲面状部と斜面状部
とを連続させ、かつ前記チップの前面の該本体の内周側
には第１の曲面状部と第２の曲面状部を連続させた。That is, a plurality of projecting portions are formed on the milling cutter body, chips are detachably fixed to the outer peripheral side portions of the projecting portions, and a chip guide portion is provided on the front side of the chip. The first curved surface portion and the sloped surface portion are continuous with each other on the front side, and the first curved surface portion and the second curved surface portion are connected with each other on the inner peripheral side of the main body on the front surface of the chip. .
【０００６】さらに、切屑の排出性を高めるためにチッ
プの前方側の切屑案内部の斜面状部に圧力媒体噴出孔を
設けたものである。Further, in order to enhance the chip discharge property, a pressure medium ejection hole is provided in the sloped portion of the chip guide portion on the front side of the chip.
【０００７】[0007]
【発明の作用】本発明は、以上に述べた手段、すなわち
フライス本体にチップを有する突出部を形成させたの
で、切屑排出スペースがきわめて大きなものとなった。According to the present invention, since the means described above, that is, the protrusion having the tip is formed on the milling cutter body, the chip discharge space becomes extremely large.
【０００８】また、切屑案内部をフライス本体の外周側
と内周側とに、その形状を異ならせしめた２段構成とし
た切屑ガイド面の形成によって切屑を分割して生成させ
るようにした。Further, the chip guide portion is formed on the outer peripheral side and the inner peripheral side of the milling cutter body by forming a chip guide surface having a two-step structure having different shapes to divide the chip.
【０００９】そして、切屑案内部の斜面状部に圧力媒体
噴出孔を設け、この孔よ −２− り圧力媒体（例えば、エアー）を噴出させることによっ
て、上記作用に相乗して、さらに切屑の排出性を高める
ものとなった。A pressure medium jetting hole is provided in the sloped portion of the chip guide portion, and a pressure medium (for example, air) is jetted from this hole to synergize with the above-mentioned action and further generate chips. It became to improve the emission.
【００１０】[0010]
【実施例】以下、本発明の実施例を添付した図面を基に
説明する。添付図は本発明になるスローアウエイ式フラ
イスであって、そのEmbodiments of the present invention will be described below with reference to the accompanying drawings. The attached drawing shows a throwaway type milling machine according to the present invention.
【図 １】はフライスの一部分を断面した正面図、1] is a front view of a cross section of a part of a milling cutter,
【図 ２】は[Figure 2]
【図 １】の底面図である。FIG. 1 is a bottom view of FIG.
【００１１】図において、取り外し自在なシヤンク１０
にあるフライス本体１は、複数（実施例は３箇所）の突
出部１１が設けられており、この突出部１１には正面壁
１１ａと側面壁１１ｂとを有するチップポケットが設け
られており、該ポケットには２個のチップ２ａ、２ｂが
クサビ３ａ、３ｂをボルト４ａ、４ｂ止めすることによ
って固着されている。このように２個のチップを並列固
着させたことによって切削領域を拡大させて切削効率を
高めるのと、切屑を分断させて生成できるので切屑破砕
が容易となって切屑の排出性をより向上させる。In the figure, a removable shank 10
The milling machine body 1 in Fig. 1 is provided with a plurality of (three in the embodiment) protrusions 11, and the protrusions 11 are provided with chip pockets having a front wall 11a and a side wall 11b. Two chips 2a and 2b are fixed to the pocket by fixing wedges 3a and 3b to bolts 4a and 4b. In this way, by adhering two chips in parallel, the cutting area is expanded to improve the cutting efficiency, and chips can be generated by dividing the chips, which facilitates chip crushing and further improves chip discharge performance. .
【００１２】上記した突出部１１のチップポケットに固
着されたチップ２ａ、２ｂの前方側には切屑案内部１２
が形成されてあって、この案内部には該チップ前面側を
弧状とした第１曲面状部１３とし、さらに、この曲面状
部１３に連続して２０度〜５０度（好ましくは３０度〜
４５度、実施例は４０度）のθ角を有する斜面状部１４
が形成されている。The chip guide portion 12 is provided on the front side of the chips 2a and 2b fixed to the chip pocket of the above-mentioned protruding portion 11.
Is formed, and the guide portion has a first curved surface portion 13 having an arc shape on the front surface side of the chip, and further 20 degrees to 50 degrees (preferably 30 degrees
45 °, in the embodiment 40 °), the sloped portion 14 having a θ angle.
Are formed.
【００１３】そして、該チップの前面側でフライス本体
内周側の切屑案内部１２には、前記した第１曲面状部１
３に連続して該斜面状部のθ角と同傾斜とする第２曲面
状部１５が設けられている。The chip guide portion 12 on the front side of the chip and on the inner peripheral side of the milling cutter body has the first curved surface portion 1 described above.
A second curved surface-shaped portion 15 which is continuous with 3 and has the same inclination as the θ angle of the inclined surface-shaped portion is provided.
【００１４】上記した切屑案内部１２の斜面状部１４に
形成した圧力媒体噴出孔１８へは図外の圧力媒体供給源
からシヤンク１０の導孔１６から本体１の突出部１１に
設けた枝孔１７を通じて斜面状部１４に開孔させた該圧
力噴出孔に圧力媒体が噴出されるようになっている。な
お、符号１７ａ、１７ｂは圧力媒体の漏洩を防ぐ栓であ
る。 −３−A branch hole provided in the projecting portion 11 of the main body 1 from the guide hole 16 of the shank 10 from the pressure medium supply source (not shown) to the pressure medium jetting hole 18 formed in the sloped portion 14 of the chip guide portion 12 described above. A pressure medium is ejected through the pressure ejection hole formed in the inclined portion 14 through the pressure medium 17. Note that reference numerals 17a and 17b are stoppers that prevent leakage of the pressure medium. -3-
【００１５】本発明の実施例において、フライス本体を
シヤンク１０に対してボルト２０によって着脱自在に固
定させたものを図示して説明したが、これをシヤンク１
０を用いることなくフライス本体単独で図外の工作機械
のスピンドルに装着できるようにして用いてもよい。In the embodiment of the present invention, the milling machine main body is detachably fixed to the shank 10 with the bolts 20.
It is also possible to use the milling machine alone so that it can be mounted on the spindle of a machine tool (not shown) without using 0.
【００１６】[0016]
【発明の効果】本発明は、以上に述べたように、チップ
の前方側に設けた切屑案内部を２段構成とし、しかもチ
ップの前面側とフライス本体の内周側の形状を異ならせ
しめたことによって、切削時に生成される切屑は、きわ
めて容易に破砕できて排出性を大きく高めたのと同時
に、フライス本体にチップを有する突出部を形成させた
ので、該チップの前方方向に大きな空間部分が形成され
て切屑詰まりを解消させ、かつ切屑案内部の斜面状部に
圧力媒体噴出孔を設けたので生成切屑は効率よくフライ
スの切削領域から外部へ飛散して切屑詰まりを極力防止
して、切屑詰まりが起因した被削材のキズやフライスの
破損をきわめて少ないものにし、切削性を大きく高めた
ものである。As described above, according to the present invention, the chip guide portion provided on the front side of the tip has a two-step structure, and the shape of the front side of the tip and the inner peripheral side of the milling cutter body are made different. As a result, the chips generated during cutting can be extremely easily crushed to greatly improve the dischargeability, and at the same time, the protrusion having the tip is formed in the milling cutter body, so that a large space portion in the front direction of the tip is formed. Is formed to eliminate chip clogging, and the pressure medium ejection holes are provided in the sloped portion of the chip guide portion, so the generated chips are efficiently scattered from the cutting area of the milling cutter to the outside to prevent chip clogging as much as possible. The scratches on the work material and the damage to the milling cutter due to the clogging of chips are extremely small, and the machinability is greatly improved.
【図 １】本発明のフライスの一部分を断面した正面図FIG. 1 is a front view showing a cross section of a part of a milling cutter of the present invention.
【図 ２】図１の底面図2 is a bottom view of FIG.
【図 ３】図２のＡ矢視図FIG. 3 is a view on arrow A in FIG.
１．フライス本体 １１．突出部 −４− １２．切屑案内部 １３．第１曲面状部 ２４．傾斜状部 １５．第２曲面状部 １８．噴出孔 −５− 1. Milling machine 11. Projection portion-4-12. Chip guide section 13. First curved surface portion 24. Inclined part 15. Second curved surface portion 18. Jet hole-5-
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高橋 康友 大阪府大阪市平野区加美東２丁目１番18号 ダイジ▲ェ▼ット工業株式会社内 (72)発明者 高柳 文雄 大阪府大阪市平野区加美東２丁目１番18号 ダイジ▲ェ▼ット工業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasutomo Takahashi 2-1-1 Kamihigashi, Hirano-ku, Osaka-shi, Osaka Daiji ▲ ▼ Industrial Co., Ltd. (72) Inventor Fumio Takayanagi, Osaka-shi, Osaka 2-18-1, Kamihito-ku, Daiji Industrial Co., Ltd.
Claims (2)
の突出部の外周側辺部にチップを着脱自在に固着させる
のと共に、前記チップの前方側に形成する切屑案内部を
チップの前面側は第１の曲面状部と斜面状部を連続さ
せ、かつ前記チップの前面の該本体内周側には第１の曲
面状部と第２の曲面状部とを連続するように形成させた
ことを特徴とするスローアウエイ式フライス。1. A milling machine body is provided with a plurality of projecting portions, a tip is detachably fixed to an outer peripheral side portion of the projecting portions, and a chip guide portion formed on the front side of the tip is provided on the front surface of the chip. The first curved surface portion and the sloped surface portion are continuous with each other, and the first curved surface portion and the second curved surface portion are formed continuously with each other on the inner peripheral side of the main body on the front surface of the chip. Throw-away type milling cutter characterized by that.
圧力媒体噴出孔を形成させたことを特徴とする請求項１
に記載のスローアウエイ式フライス。2. A pressure medium ejection hole is formed in a sloped portion of the chip guide portion on the front side of the chip.
Throw-away type milling machine described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20895893A JP3272501B2 (en) | 1993-07-30 | 1993-07-30 | Indexable milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20895893A JP3272501B2 (en) | 1993-07-30 | 1993-07-30 | Indexable milling cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0740125A true JPH0740125A (en) | 1995-02-10 |
| JP3272501B2 JP3272501B2 (en) | 2002-04-08 |
Family
ID=16564971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20895893A Expired - Lifetime JP3272501B2 (en) | 1993-07-30 | 1993-07-30 | Indexable milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3272501B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013240869A (en) * | 2012-05-22 | 2013-12-05 | Disco Corp | Cutting apparatus with cutting tool |
| EP3150319A1 (en) * | 2015-10-01 | 2017-04-05 | Sandvik Intellectual Property AB | A tool body, a milling tool and a method for manufacturing a tool body |
| JP2021007986A (en) * | 2019-06-28 | 2021-01-28 | 株式会社タンガロイ | Cutting tool |
-
1993
- 1993-07-30 JP JP20895893A patent/JP3272501B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013240869A (en) * | 2012-05-22 | 2013-12-05 | Disco Corp | Cutting apparatus with cutting tool |
| EP3150319A1 (en) * | 2015-10-01 | 2017-04-05 | Sandvik Intellectual Property AB | A tool body, a milling tool and a method for manufacturing a tool body |
| WO2017055156A1 (en) * | 2015-10-01 | 2017-04-06 | Sandvik Intellectual Property Ab | A tool body, a milling tool and a method for manufacturing a tool body |
| EP3150319B1 (en) | 2015-10-01 | 2023-12-06 | Sandvik Intellectual Property AB | A tool body, a milling tool and a method for manufacturing a tool body |
| JP2021007986A (en) * | 2019-06-28 | 2021-01-28 | 株式会社タンガロイ | Cutting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3272501B2 (en) | 2002-04-08 |
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