JP3444130B2 - Milling tool with chip discharge mechanism - Google Patents
Milling tool with chip discharge mechanismInfo
- Publication number
- JP3444130B2 JP3444130B2 JP04273697A JP4273697A JP3444130B2 JP 3444130 B2 JP3444130 B2 JP 3444130B2 JP 04273697 A JP04273697 A JP 04273697A JP 4273697 A JP4273697 A JP 4273697A JP 3444130 B2 JP3444130 B2 JP 3444130B2
- Authority
- JP
- Japan
- Prior art keywords
- cover
- chip
- air
- tip
- tool body
- 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 - Lifetime
Links
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- Auxiliary Devices For Machine Tools (AREA)
- Milling Processes (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、正面フライスなど
の転削工具に切屑排出機構を取り付けた切屑排出機構付
き転削工具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting tool with a chip discharging mechanism in which a chip discharging mechanism is attached to a rolling tool such as a face mill.
【０００２】[0002]
【従来の技術】従来、切屑排出機構を備えた転削工具と
して例えば図６に示す正面フライスが提案されている。
この正面フライスは、工具本体１の外周にカバー２が相
対回転可能に取り付けられ、工具本体１の先端外周部に
切刃チップ３が取り付けられている（図では一部のみを
示す）。工具本体１のチップポケットには切屑案内部材
４が取り付けられて、切刃チップ３のすくい面と若干の
隙間を開けて対向配置され、切刃チップ３で生成される
切屑がこの隙間を通して工具本体１とカバー２との間の
切屑収納室に誘導され、カバー２に設けられた排出開口
５から排出回収されるようになっている。また、排出開
口５には略円筒状のカバー２の外側に突出する副次室６
が連結され、副次室６の他端に排出口６ａが開口してい
る。2. Description of the Related Art Conventionally, for example, a face mill shown in FIG. 6 has been proposed as a rolling tool having a chip discharging mechanism.
In this face milling machine, a cover 2 is attached to the outer periphery of a tool body 1 so as to be rotatable relative to it, and a cutting edge tip 3 is attached to the outer periphery of the tip of the tool body 1 (only a part is shown in the drawing). A chip guide member 4 is attached to the chip pocket of the tool body 1 and is arranged so as to face the rake face of the cutting edge chip 3 with a slight gap, and the chips generated by the cutting edge chip 3 pass through this gap and the tool body 1 is guided to a chip storage chamber between the cover 1 and the cover 2, and is discharged and collected from a discharge opening 5 provided in the cover 2. In addition, the discharge opening 5 has a sub chamber 6 protruding outside the substantially cylindrical cover 2.
Is connected, and a discharge port 6a is opened at the other end of the sub chamber 6.
【０００３】このような切屑排出機構では、カバー２内
の切屑収納室に誘導された切屑が、回転する工具本体１
による遠心力でカバー内周面に飛ばされて回転し、排出
開口５から副次室６に移動することで排出口６ａから排
出され易くなっている。その際、切屑の移動回収を促進
するために、カバー先端部に工具本体１に向けてエアの
噴出口を全周に亘って配設して切屑を誘導する技術が提
案されている。In such a chip discharging mechanism, the chips guided to the chip storage chamber in the cover 2 rotate the tool body 1
By the centrifugal force generated by the blower, it is blown to the inner peripheral surface of the cover to rotate, and is moved from the discharge opening 5 to the sub chamber 6 to be easily discharged from the discharge port 6a. At this time, in order to promote the movement and recovery of the chips, a technique has been proposed in which a tip of the cover is provided with an air ejection port toward the tool body 1 over the entire circumference to guide the chips.
【０００４】[0004]
【発明が解決しようとする課題】ところで、このような
切屑排出機構では、副次室６はカバー２の周面から外側
に膨らむ円弧状に形成されているために、切屑が副次室
６内に移動することで切屑に働く遠心力が弱まり、途中
の円弧部６ｂ付近に切屑が溜ることがある。特に湿式切
削の場合には切屑が副次室６の内壁に溜り易く、これに
後続の切屑が引っかかることで最終的に切屑詰まりを生
じることがある。本発明は、このような実情に鑑みて、
副次室内に切屑が滞留することのない切屑排出機構付き
転削工具を提供することを目的とする。By the way, in such a chip discharging mechanism, since the auxiliary chamber 6 is formed in an arcuate shape which bulges outward from the peripheral surface of the cover 2, the chips are generated in the auxiliary chamber 6. By moving to, the centrifugal force acting on the chips is weakened, and the chips may accumulate near the arc portion 6b on the way. Particularly in the case of wet cutting, chips are likely to collect on the inner wall of the sub chamber 6, and subsequent chips may catch on the inner wall of the sub chamber 6 to eventually cause chip clogging. The present invention, in view of such a situation,
It is an object of the present invention to provide a rolling tool with a chip discharging mechanism in which chips do not stay in a sub chamber.
【０００５】[0005]
【課題を解決するための手段】本発明にかかる切屑排出
機構付き転削工具は、軸線回りに回転せしめられる工具
本体の先端外周部に切刃チップが取り付けられ、工具本
体の周面外方にカバーを取り付けて該カバーと工具本体
との間に切屑収納室を形成し、カバーには切屑収納室に
連通する開口を形成し、この開口にはカバーの周面の外
側に突出する略円弧状を呈して工具本体の回転方向に延
在する副次室が連結された切屑排出機構付き転削工具に
おいて、副次室の湾曲部に、排出口方向に流体を吹き出
す吹き出し口が設けられていることを特徴とする。切刃
チップで生成されて切屑収納室に誘導された切屑は遠心
力でカバーの内周面に押し付けられつつ回転し、開口か
ら副次室に移動することで遠心力が次第に弱められる
が、吹き出し口から噴出されるエア等の流体で強制的に
押し出されて排出口から排出され、乾式切削、湿式切削
に関わらず、切屑が副次室内に滞留することなくスムー
ズに排出できる。A cutting tool with a chip discharging mechanism according to the present invention has a cutting blade tip attached to the outer periphery of the tip of a tool body that is rotated around an axis, and is provided outside the peripheral surface of the tool body. A chip storage chamber is formed between the cover and the tool body by attaching the cover, and an opening communicating with the chip storage chamber is formed in the cover. The opening has a substantially arc shape protruding to the outside of the peripheral surface of the cover. And extend in the rotation direction of the tool body.
The chipping mechanism-equipped rolling tool to which the existing sub-chamber is connected is characterized in that the curved portion of the sub-chamber is provided with a blow-out port for blowing out fluid in the discharge port direction. The chips generated by the cutting blade tip and guided into the chip storage chamber rotate while being pressed against the inner peripheral surface of the cover by the centrifugal force, and move from the opening to the sub chamber to gradually weaken the centrifugal force, but blow off. Fluid such as air ejected from the mouth is forcibly pushed out and discharged from the discharge port, and regardless of dry cutting or wet cutting, chips can be discharged smoothly without staying in the sub chamber.
【０００６】また、副次室の吹き出し口の下流側に流体
増幅器が設けられていてもよい。また、カバーの先端部
に工具本体方向にエア等の流体を噴出する噴出部が設け
られていてもよい。噴出部は噴出口とインジェクタから
なる。カバー先端部の噴出部からエア等の流体を噴出す
ることで、切屑の切屑収納室内への誘導が促進され、更
に切屑収納室から副次室に誘導された切屑は吹き出し口
のエアで強制的に移動させられ、更に流体増幅器で切屑
流れが促進されるために、切屑の排出効率が格段に向上
する。A fluid amplifier may be provided on the downstream side of the outlet of the sub chamber. In addition, a jet portion that jets a fluid such as air toward the tool body may be provided at the tip of the cover. The spout consists of a spout and an injector. By ejecting a fluid such as air from the ejection part at the tip of the cover, the guiding of chips into the chip storage chamber is promoted, and the chips guided from the chip storage chamber to the sub chamber are forced by the air from the outlet. The chip discharge efficiency is remarkably improved because the chip flow is further promoted and the chip flow is promoted by the fluid amplifier.
【０００７】[0007]
【発明の実施の形態】以下、図１ないし図５を参照し
て、本発明の実施の形態を説明する。図１は実施の形態
による正面フライスの縦断面図、図２は図１に示す正面
フライスの底面図、図３はエア増幅器の断面図、図４は
図３に示すエア増幅器のＡ部拡大図、図５は副次室の吹
き出し口の部分断面図である。図１及び図２に示すスロ
ーアウェイ式正面フライス１０において、工作機械の主
軸９にアダプタ１１がキーとキー溝嵌合により一体回転
するように取り付けられ、アダプタ１１の先端面外周部
に略円筒状の工具本体１２がキーとキー溝嵌合によりア
ダプタ１１と一体回転するように装着されている。工具
本体１２の中央部に略円板状の締め付け部材１３が嵌め
込まれた状態で、中央ボルト１４で締め付け部材１３を
アダプタ１１に固定することで、工具本体１２はアダプ
タ１１と締め付け部材１３とで挟持されて固定されるこ
とになる。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. 1 is a vertical sectional view of a front milling cutter according to an embodiment, FIG. 2 is a bottom view of the front milling cutter shown in FIG. 1, FIG. 3 is a sectional view of an air amplifier, and FIG. 4 is an enlarged view of part A of the air amplifier shown in FIG. 5 is a partial cross-sectional view of the outlet of the sub chamber. In the throw-away type face milling machine 10 shown in FIGS. 1 and 2, an adapter 11 is attached to a spindle 9 of a machine tool so as to integrally rotate with a key and a key groove, and a substantially cylindrical shape is formed on an outer peripheral portion of a tip surface of the adapter 11. The tool body 12 is mounted so as to rotate integrally with the adapter 11 by fitting the key and the key groove. By fixing the tightening member 13 to the adapter 11 with the central bolt 14 in a state where the substantially disk-shaped tightening member 13 is fitted in the central portion of the tool main body 12, the tool main body 12 is composed of the adapter 11 and the tightening member 13. It will be clamped and fixed.
【０００８】工具本体１２は、回転軸線方向の上方が小
径とされた略円筒体であり、その拡径された先端部外周
に所定間隔で設けられたチップ取り付け座に、スローア
ウェイチップ（以下、チップまたは切刃チップと略称す
る）１６がくさび部材１７と図示しないクランプねじに
よってそれぞれ固定されている（図２では一部を除いて
省略されている）。チップ１６には、工具本体１２の先
端面から突出する正面切刃と工具本体１２の外周面先端
から突出する外周切刃がそれぞれ形成されている。工具
本体１２の先端面には、チップ１６の回転方向前方にチ
ップポケットを覆うように切屑案内部材２０が取り付け
られ、切屑案内部材２０の端面２０ａはチップ１６のす
くい面に若干の隙間を以て対向して位置している。The tool body 12 is a substantially cylindrical body having a small diameter at the upper side in the direction of the rotation axis, and has a throw-away tip (hereinafter referred to as a throw-away tip) on a tip mounting seat provided at a predetermined interval on the outer circumference of the enlarged tip end portion. Chips (abbreviated as chips or cutting blade chips) 16 are respectively fixed by wedge members 17 and clamp screws (not shown) (not shown in FIG. 2). The tip 16 is formed with a front cutting edge protruding from the tip end surface of the tool body 12 and an outer peripheral cutting edge protruding from the tip end of the outer peripheral surface of the tool body 12. A chip guide member 20 is attached to the tip end surface of the tool body 12 so as to cover the chip pocket in the front of the chip 16 in the rotation direction, and the end surface 20a of the chip guide member 20 faces the rake face of the chip 16 with a slight gap. Is located.
【０００９】そして、工具本体１２の外周面には略円筒
状のカバー２２が配設され、このカバー２２は例えば基
端側の支持カバー２３と先端側の可動カバー２４からな
り（支持カバーだけでもよい）、カバー２２の内周面と
工具本体１２の外周面との間の空間は切屑収納室２５と
されている。支持カバー２３はその基端部が例えば工作
機械の主軸９を支持する非回転部２６にボルト２７で固
定されている。可動カバー２４は支持カバー２３の下端
にボルト２６とスプリング２６ａで連結されて、支持カ
バー２３に対して工具本体１２の回転軸線Ｏ方向に移動
可能とされている。可動カバー２４の先端部には、例え
ば所定間隔で全周に亘って流体等のエアのインジェクタ
２８が装着され、その先端の噴出口２９は工具本体１２
の先端部またはチップ１６に向けて開口されている。各
インジェクタ２８はチューブ３０を介して図示しない圧
縮エア供給源に接続されている。可動カバー２４にはそ
の周方向に切屑収納室２５と連通する切屑の排出開口３
２（開口）が形成され、この排出開口３２には筒状の副
次室３３が接続されている。A substantially cylindrical cover 22 is provided on the outer peripheral surface of the tool body 12, and the cover 22 is composed of, for example, a support cover 23 on the base end side and a movable cover 24 on the tip end side (even if the support cover alone is used. The space between the inner peripheral surface of the cover 22 and the outer peripheral surface of the tool body 12 is a chip storage chamber 25. The base end of the support cover 23 is fixed to, for example, a non-rotating portion 26 that supports the spindle 9 of the machine tool with a bolt 27. The movable cover 24 is connected to the lower end of the support cover 23 by a bolt 26 and a spring 26a, and is movable with respect to the support cover 23 in the rotation axis O direction of the tool body 12. An injector 28 of air such as a fluid is attached to the tip of the movable cover 24 over the entire circumference at a predetermined interval, for example, and a jet port 29 at the tip of the injector 28 is attached to the tool body 12.
Is opened toward the tip or the tip 16. Each injector 28 is connected to a compressed air supply source (not shown) via a tube 30. The movable cover 24 has a chip discharge opening 3 communicating with the chip storage chamber 25 in the circumferential direction thereof.
2 (opening) is formed, and a cylindrical sub chamber 33 is connected to the discharge opening 32.
【００１０】副次室３３は、略円筒状のカバー２２に対
してその排出開口３２を覆って周方向外側に突出する略
円弧状を呈して工具本体１２の回転方向（図２で矢視）
に延在しており、その他端の排出口３３ａにエア増幅器
３４（流体増幅器）が取り付けられている。エア増幅器
３４は、図３及び図４に示すように、外筒３５の内側係
止部３５ａまで内筒３６が嵌挿されて摺動可能とされ、
外筒３５の上流側開口部３５ｂに副次室３３の排出口３
３ａが嵌挿されて固定され、内筒３６の下流側開口部３
６ａに排気管３７が連結されている。外筒３５には径方
向にエアプラグ３８が装着され、外筒３５に重なる内筒
３６の外周面には、エアプラグ３８が開口すると共に、
外筒３５の内周面との間に円筒状の空間３９を形成する
凹陥部３６ｂが形成されている。そして、内筒３６と外
筒３５の内側係止部３５ａとの間に若干の隙間ｃを開け
た状態でエアプラグ３８からエアを供給することで、エ
ア増幅器３４の内筒３６内に排気管３７に向けたエア流
が形成されることになる。The sub chamber 33 has a substantially arcuate shape that covers the discharge opening 32 of the cover 22 having a substantially cylindrical shape and projects outward in the circumferential direction, and has a rotation direction of the tool body 12 (as viewed in FIG. 2).
The air amplifier 34 (fluid amplifier) is attached to the discharge port 33a at the other end. As shown in FIGS. 3 and 4, the air amplifier 34 is slidable by inserting the inner cylinder 36 into the inner locking portion 35 a of the outer cylinder 35.
The outlet 3 of the auxiliary chamber 33 is provided at the upstream opening 35b of the outer cylinder 35.
3a is fitted and fixed, and the downstream opening 3 of the inner cylinder 36
An exhaust pipe 37 is connected to 6a. An air plug 38 is attached to the outer cylinder 35 in the radial direction, and the air plug 38 is opened on the outer peripheral surface of the inner cylinder 36 overlapping the outer cylinder 35.
A concave portion 36b that forms a cylindrical space 39 is formed between the outer cylinder 35 and the inner peripheral surface thereof. Then, by supplying air from the air plug 38 with a slight gap c left between the inner cylinder 36 and the inner locking portion 35a of the outer cylinder 35, the exhaust pipe 37 is inserted into the inner cylinder 36 of the air amplifier 34. An air flow directed to the will be formed.
【００１１】そして、図２及び図５において、副次室３
３の湾曲部３３ｂにはエア吹き出し装置４０が取り付け
られている。エア吹き出し装置４０は図示しないエア供
給源から圧縮エアの供給を受けるエア供給部４１と、エ
ア供給部４１から副次室３３内の排出口３３ａに向けて
エアを噴出させる吹き出し口４２とで構成されている。
吹き出し口４２は副次室３３の厚み方向即ち工具本体の
回転軸線Ｏ方向に例えば３本配列されている。2 and 5, the sub chamber 3
An air blowing device 40 is attached to the curved portion 33b of No. 3. The air blowing device 40 includes an air supply unit 41 that receives compressed air supplied from an air supply source (not shown), and a blowing port 42 that ejects air from the air supply unit 41 toward the discharge port 33a in the sub chamber 33. Has been done.
For example, three outlets 42 are arranged in the thickness direction of the sub chamber 33, that is, in the rotation axis O direction of the tool body.
【００１２】本実施の形態は上述のように構成されてい
るから、カバー２２の先端をチップ１６の切刃の領域に
位置させて、工具本体１２を回転させつつ切削すること
で、チップ１６の切刃で被削材が切削される。生成され
た切屑は、可動カバー２４の先端部に設けられたインジ
ェクタ２８のエア吹き出し力が噴出口２９を通して作用
した状態で、チップ１６の切刃のすくい面と切屑案内部
材２０の端面２０ａとの隙間から切屑収納室２５内に誘
導され、遠心力でカバー２２内を回転して開口３２から
副次室３３に排出される。副次室３３内に移動した切屑
は遠心力によって円弧形状の内壁に沿って移動しつつ遠
心力が弱まるために、湾曲部３３ｂ付近で切屑の移動速
度が低下するが、エア吹き出し装置４０の吹き出し口４
２から吐出される圧縮エアで強制的にエア増幅器３４方
向に送られる。そしてエア増幅器３４でもエアで強制的
に排出口３３ａの排気管３７方向に送られ、排気管３７
から回収される。本実施の形態では、可動カバー２４の
インジェクタ２８及び噴出口２９と、副次室３３に連結
されたエア増幅器３４とのダブルエア方式に、副次室３
３内のエア吹き出し装置４０を加えてトリプルエア方式
としたことで、切屑回収効率が著しく向上した。Since the present embodiment is configured as described above, the tip of the cover 22 is positioned in the region of the cutting edge of the tip 16 and the tool body 12 is rotated and cut to cut the tip 16 of the tip 16. The work material is cut by the cutting edge. The generated chips are formed between the rake face of the cutting edge of the tip 16 and the end face 20 a of the chip guide member 20 in a state where the air blowing force of the injector 28 provided at the tip of the movable cover 24 acts through the ejection port 29. It is guided into the chip storage chamber 25 through the gap, is rotated in the cover 22 by centrifugal force, and is discharged from the opening 32 to the sub chamber 33. The chips that have moved into the sub chamber 33 move along the arc-shaped inner wall by the centrifugal force, and the centrifugal force is weakened. Therefore, the moving speed of the chips decreases near the curved portion 33b. Mouth 4
The compressed air discharged from 2 is forcibly sent toward the air amplifier 34. Then, the air amplifier 34 is also forced by air to the exhaust port 33a toward the exhaust pipe 37,
Recovered from. In the present embodiment, the auxiliary chamber 3 has a double air system including the injector 28 and the ejection port 29 of the movable cover 24 and the air amplifier 34 connected to the secondary chamber 33.
By adopting the triple air system by adding the air blowing device 40 in 3, the chip recovery efficiency was remarkably improved.
【００１３】本実施の形態によるカバー付き正面フライ
スについて、次の切削条件の下で湿式切削により切削試
験を行った。尚、エア圧は可動カバー２４の噴出口２９
と、副次室３３に連結されたエア増幅器３４と、副次室
３３内のエア吹き出し装置４０とで共通とする。
切削条件
被削材：シリンダーヘッド下面（アルミ合金）
カッタ：ＱＢＦ４０７Ｒ１０１６Ｑ（カッタ径：２５０
ｍｍ）
スローアウェイチップ：ＳＦＣＮ４２ＺＦＦＲ２（ＭＤ
２２０）
切削速度Ｖ：１２５７ｍｍ／min
回転数Ｎ：１６００ｒｐｍ
１刃当りの送り速度Ｓｚ：０．１ｍｍ／刃
切込み深さｄ：０．３ｍｍ（一定）
エア圧：４．５ｋｇ／ｃｍ2
切削の結果、切屑回収率が９９％となった。この回収率
は、副次室３３に集塵機を取り付けて強制的に吸引回収
する切屑排出方式と同等以上である。A cutting test was performed on the face mill with a cover according to this embodiment by wet cutting under the following cutting conditions. In addition, the air pressure is the ejection port 29 of the movable cover 24.
And the air amplifier 34 connected to the sub chamber 33 and the air blowing device 40 in the sub chamber 33 are common. Cutting conditions Work material: Cylinder head bottom surface (aluminum alloy) Cutter: QBF407R1016Q (Cutter diameter: 250
mm) Throw-away tip: SFCN42ZFFR2 (MD
220) Cutting speed V: 1257 mm / min Rotation speed N: 1600 rpm Feed speed per blade Sz: 0.1 mm / blade depth of cut d: 0.3 mm (constant) Air pressure: 4.5 kg / cm 2 Cutting result The chip recovery rate became 99%. This recovery rate is equal to or higher than that of the chip discharge method in which a dust collector is attached to the sub chamber 33 to forcibly suck and recover.
【００１４】上述のように本実施の形態によれば、切屑
が副次室３３内に滞留するのを抑制して強制的に排出
し、副次室３３内での切屑詰まりを防止できる。特に本
実施の形態によれば、可動カバー２４の噴出口２９と、
副次室３３に連結されたエア増幅器３４と、副次室３３
内のエア吹き出し装置４０とのトリプルエア方式を採用
することで、切屑回収率が９９％となり、切屑回収効率
が著しく向上した。そのため乾式切削の場合はもとよ
り、切屑が副次室３３の内壁に付着したり相互に絡んだ
りして副次室３３内で詰まり易い湿式切削の場合にも、
ほほ完全に切屑の排出回収を達成できる。As described above, according to the present embodiment, it is possible to prevent the chips from staying in the sub chamber 33 and forcibly discharge them, thereby preventing the clogging of the chips in the sub chamber 33. Particularly according to the present embodiment, the ejection port 29 of the movable cover 24,
The air amplifier 34 connected to the sub chamber 33, and the sub chamber 33
By adopting the triple air system with the air blowing device 40 inside, the chip recovery rate was 99%, and the chip recovery efficiency was significantly improved. Therefore, not only in the case of dry cutting, but also in the case of wet cutting in which chips adhere to the inner wall of the sub chamber 33 or are entangled with each other and are easily clogged in the sub chamber 33,
Chip discharge and recovery can be achieved almost completely.
【００１５】尚、上述の実施の形態では、副次室３３に
１つの吹き出し装置４０を配設したが、２つ以上配設し
てもよく、その際、切屑の流れ方向に上流側から下流側
に向けて配列してもよいし、周方向に配列してもよい。
いずれにしても排出口３３ａに向けてエアが吐出されれ
ばよい。また、排気管３７等に集塵機を連結して吸引回
収するようにしてもよく、その際、可動カバー２４のイ
ンジェクタ２８及び噴出口２９や、エア増幅器３４は必
ずしも必要ない。吹き出し口４２の上流にエア増幅器４
３を配設してもよい。In the above-described embodiment, one blowing device 40 is provided in the sub chamber 33, but two or more blowing devices 40 may be provided. At that time, in the chip flow direction, from the upstream side to the downstream side. It may be arranged toward the side or may be arranged in the circumferential direction.
In any case, it suffices that the air is discharged toward the discharge port 33a. Further, a dust collector may be connected to the exhaust pipe 37 or the like for suction and collection, and in that case, the injector 28 and the jet port 29 of the movable cover 24, and the air amplifier 34 are not necessarily required. The air amplifier 4 is provided upstream of the outlet 42.
3 may be provided.
【００１６】[0016]
【発明の効果】上述のように本発明に係る切屑排出機構
付き転削工具では、副次室の湾曲部に排出口方向に流体
を吹き出す吹き出し口が設けられているから、切刃チッ
プで生成されて切屑収納室に誘導された切屑はカバーの
開口から副次室に移動することで遠心力が弱まるが、吹
き出し口から噴出されるエア等の流体で強制的に排出口
から押し出され、副次室内に切屑が滞留することなくス
ムーズに排出回収でき、回収効率を著しく向上できる。As described above, in the cutting tool with a chip discharging mechanism according to the present invention, since the curved portion of the sub chamber is provided with the blowout port for blowing out the fluid in the direction of the discharge port, it is generated by the cutting edge tip. The chips that have been guided to the chip storage chamber weaken the centrifugal force by moving from the opening of the cover to the sub chamber, but are forcibly pushed out of the discharge port by the fluid such as air ejected from the blowout port, The chips can be smoothly discharged and collected without staying in the next chamber, and collection efficiency can be significantly improved.
【図１】 本発明の実施の形態による切屑排出機構付き
正面フライスの縦断面図である。FIG. 1 is a vertical cross-sectional view of a front milling cutter with a chip discharging mechanism according to an embodiment of the present invention.
【図２】 図１に示す正面フライスの底面図である。2 is a bottom view of the front milling cutter shown in FIG. 1. FIG.
【図３】 図２におけるエア増幅器の断面図である。3 is a cross-sectional view of the air amplifier in FIG.
【図４】 図３に示すエア増幅器の部分拡大図である。FIG. 4 is a partially enlarged view of the air amplifier shown in FIG.
【図５】 縦断面で示す副次室に取り付けられた吹き出
し装置の説明図である。FIG. 5 is an explanatory view of a blowing device attached to a sub chamber shown in a vertical section.
【図６】 従来の切屑排出機構付き正面フライスの底面
図である。FIG. 6 is a bottom view of a conventional face mill with a chip discharging mechanism.
１０ 正面フライス １２ 工具本体 １６ スローアウェイチップ ２２ カバー ２４ 可動カバー ２８ インジェクタ ２９ 噴出口 ３２ 排出開口 ３４ エア増幅器 ４０ 吹き出し装置 10 face mill 12 Tool body 16 throw-away tip 22 cover 24 Movable cover 28 injectors 29 spout 32 discharge opening 34 Air amplifier 40 blowing device
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平５−277886（ＪＰ，Ａ) 特開 平９−141536（ＪＰ，Ａ) 実開 平７−27736（ＪＰ，Ｕ) 特公 昭52−24271（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) B23C 9/00 B23Q 11/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-277886 (JP, A) JP-A-9-141536 (JP, A) Actually-opened Hei 7-27736 (JP, U) JP-B-52- 24271 (JP, B2) (58) Fields investigated (Int.Cl. 7 , DB name) B23C 9/00 B23Q 11/00
Claims (2)
先端外周部に切刃チップが取り付けられ、前記工具本体
の周面外方にカバーを取り付けて該カバーと前記工具本
体との間に切屑収納室を形成し、前記カバーには切屑収
納室に連通する開口を形成し、該開口には前記カバーの
周面の外側に突出する略円弧状を呈して前記工具本体の
回転方向に延在する副次室が連結された切屑排出機構付
き転削工具において、 前記副次室の湾曲部に、排出口方向に流体を吹き出す吹
き出し口が設けられていることを特徴とする切屑排出機
構付き転削工具。1. A cutting blade tip is attached to a tip outer peripheral portion of a tool body rotated about an axis, and a cover is attached to an outer peripheral surface of the tool body to store chips between the cover and the tool body. A chamber is formed, an opening communicating with the chip storage chamber is formed in the cover, and the opening has a substantially arc shape protruding to the outside of the peripheral surface of the cover .
A turning tool with a chip discharging mechanism, in which a subsidiary chamber extending in the rotational direction is connected, characterized in that a curved portion of the subsidiary chamber is provided with an outlet for blowing out a fluid in the outlet direction. A rolling tool with a chip discharging mechanism.
設けられたことを特徴とする請求項１記載の切屑排出機
構付き転削工具。2. The rolling tool with a chip discharging mechanism according to claim 1, further comprising a fluid amplifier provided downstream of the outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04273697A JP3444130B2 (en) | 1997-02-26 | 1997-02-26 | Milling tool with chip discharge mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04273697A JP3444130B2 (en) | 1997-02-26 | 1997-02-26 | Milling tool with chip discharge mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10235534A JPH10235534A (en) | 1998-09-08 |
| JP3444130B2 true JP3444130B2 (en) | 2003-09-08 |
Family
ID=12644326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04273697A Expired - Lifetime JP3444130B2 (en) | 1997-02-26 | 1997-02-26 | Milling tool with chip discharge mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3444130B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0955125A3 (en) | 1998-05-07 | 2001-05-23 | Mitsubishi Materials Corporation | Cutting tool |
| JP4752120B2 (en) * | 2001-03-09 | 2011-08-17 | 株式会社タンガロイ | Chip discharger |
| JP4821053B2 (en) * | 2001-05-17 | 2011-11-24 | 株式会社タンガロイ | Casing and tool with chip discharge mechanism |
-
1997
- 1997-02-26 JP JP04273697A patent/JP3444130B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10235534A (en) | 1998-09-08 |
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