JP2003266233A - Air self-feed type rotary cutting tool - Google Patents
Air self-feed type rotary cutting toolInfo
- Publication number
- JP2003266233A JP2003266233A JP2002067816A JP2002067816A JP2003266233A JP 2003266233 A JP2003266233 A JP 2003266233A JP 2002067816 A JP2002067816 A JP 2002067816A JP 2002067816 A JP2002067816 A JP 2002067816A JP 2003266233 A JP2003266233 A JP 2003266233A
- Authority
- JP
- Japan
- Prior art keywords
- air
- tip
- rotary cutting
- tool
- chip pocket
- 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
- Milling Processes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、フライスやエン
ドミルなどの回転切削工具に関し、特に切刃チップおよ
び切屑ポケットにエアーを送風する羽根を備えるように
したエアー自給式回転切削工具の提供に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary cutting tool such as a milling cutter and an end mill, and more particularly to the provision of an air self-contained rotary cutting tool having blades for blowing air to a cutting edge chip and a chip pocket.
【０００２】[0002]
【従来の技術】回転切削工具による切削加工時に、切刃
チップ周りに切屑が堆積すると、切屑の噛み込みが起き
て切刃が欠損したり、切屑擦過により工具本体が摩耗し
たりする。また、過度の切削熱は、切刃寿命を低下させ
たり、加工物の変形を招いたりする。これらの問題に対
して、エアーを切削箇所に噴射して対策することがあ
る。従来、エアーは、コンプレッサにより加圧されたの
ち、通常は工場内の配管を通じて供給されている。エア
ーの供給は、ノズルの先を切削箇所に向けて噴射する外
部供給方式が一般的であるが、最近では工作機械のスピ
ンドルやアーバに設けたエアー穴を介して回転切削工具
本体に設けたエアー穴より噴射する内部供給方式も実用
されている。2. Description of the Related Art When chips are accumulated around a cutting edge tip during cutting with a rotary cutting tool, chips are caught and the cutting edge is damaged, or the tool body is worn due to chip abrasion. In addition, excessive cutting heat reduces the life of the cutting edge and causes deformation of the work piece. Air may be jetted to the cutting location to deal with these problems. Conventionally, air is pressurized by a compressor and then normally supplied through piping in a factory. For air supply, an external supply method is generally used in which the tip of the nozzle is jetted toward the cutting location, but recently, the air provided on the rotary cutting tool main body through the air hole provided on the spindle or arbor of the machine tool. An internal supply method of spraying from a hole is also in practical use.
【０００３】[0003]
【発明が解決しようとする課題】この発明の目的は、上
記のような特別なエアーの供給装置を必要とせずに、簡
単にエアー供給作用を作り出すことにある。また、外部
供給方式のように、常に作業者が付き添っていなければ
ならないという状態を無くすることにある。SUMMARY OF THE INVENTION An object of the present invention is to easily create an air supply action without the need for the above special air supply device. Moreover, it is to eliminate the condition that the worker must always be present, unlike the external supply method.
【０００４】[0004]
【課題を解決するための手段】この発明は、上記のよう
な課題に鑑みなされたもので、請求項１は、環状をなす
工具本体の先端周縁部に切刃チップが備わり、この切刃
チップのすくい面前方には切屑ポケットが配設された回
転切削工具であって、前記工具本体の前記切刃チップの
後端側外周部は切欠きされ、切欠き残部によって先端に
向かう送風作用を有する羽根が形成されるとともに、風
を先端側に導くエアー穴が穿設されていることを特徴と
する。いわば、扇風機のような送風作用でもってエアー
を自給できるようにしたものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the first aspect of the present invention is to provide a cutting blade tip on the peripheral edge of the tool body having an annular shape. Is a rotary cutting tool in which a chip pocket is arranged in front of the rake face of the tool body, and the outer peripheral portion of the cutting edge tip of the tool body on the rear end side is notched, and has a blowing action toward the tip by the notch remaining portion. The blade is formed, and an air hole for guiding the wind to the tip side is formed. In other words, it is designed to be self-sufficient in air by the blowing action of a fan.
【０００５】請求項２は、前記エアー穴は、前記工具本
体の先端面にて開口する吹出し口を有するとともに、こ
の吹出し口と前記切屑ポケットとを結ぶ連絡溝が凹設さ
れていることを特徴とする。これにより、連絡溝と加工
材料の表面、および切屑ポケットと加工材料の壁面との
間に通風路が形成され、エアーは切屑ポケットの中を先
端から後端に向かって噴出するようになる。According to a second aspect of the present invention, the air hole has a blowout opening that opens at the tip surface of the tool body, and a connecting groove that connects the blowout opening and the chip pocket is recessed. And As a result, an air passage is formed between the communication groove and the surface of the machining material, and between the chip pocket and the wall surface of the machining material, and the air is blown into the chip pocket from the front end to the rear end.
【０００６】請求項３は、請求項１に記載のエアー穴
は、前記切屑ポケット内にて開口する吹出し口を有する
ことを特徴とする。作られたエアーは切刃近傍にて噴出
するようになり、従来の外部供給方式と同じ効果をもた
らす。[0006] A third aspect of the present invention is characterized in that the air hole according to the first aspect has an outlet opening in the chip pocket. The produced air comes to be ejected in the vicinity of the cutting edge, and has the same effect as the conventional external supply method.
【０００７】請求項４は、環状をなす工具本体の先端周
縁部に切刃チップが備わり、この工具本体の先端中央部
には取付座ぐり穴の配設された回転切削工具であって、
前記取付座ぐり穴は切欠きされ、切欠き残部によって先
端に向かう送風作用を有する羽根が形成されるととも
に、前記切欠きにエアーを呼び込むエアー穴が穿設され
ていることを特徴とする。いわば、換気扇のような送風
作用でもってエアーを自給できるようにしたものであ
る。According to a fourth aspect of the present invention, there is provided a rotary cutting tool in which a cutting edge tip is provided on a peripheral edge portion of a tip of an annular tool body, and a mounting counterbore hole is provided in a central portion of the tip of the tool body.
The mounting counterbore hole is notched, a blade having an air blowing action toward the tip is formed by the remaining notch, and an air hole for drawing air is formed in the notch. In other words, it is designed to be self-sufficient in air with a ventilation function like a ventilation fan.
【０００８】請求項５は、請求項４に記載のエアー穴の
吹出し口と前記切屑ポケットとを結ぶ連絡溝が凹設され
ていることを特徴とする。これにより、連絡溝と加工材
料の表面、および切屑ポケットと加工材料の壁面との間
で通風路が形成され、エアーは、切屑ポケットの中を先
端から後端に向かって噴出するようになる。A fifth aspect of the present invention is characterized in that a connecting groove connecting the air outlet of the fourth aspect and the chip pocket is provided as a recess. As a result, a ventilation path is formed between the communication groove and the surface of the machining material, and between the chip pocket and the wall surface of the machining material, and air is blown out from the front end to the rear end in the chip pocket.
【０００９】請求項６は、前記工具本体の前記切刃チッ
プの後端側外周部は切欠きされ、この切欠き内に前記エ
アー穴の呼込み口が設けられることを特徴とする。呼込
み口が設けられることによる空気の呼び込み作用が、羽
根による吸引作用に加算されて、エアーの供給能力が強
まる。According to a sixth aspect of the present invention, a rear end side outer peripheral portion of the cutting blade tip of the tool main body is notched, and a suction port of the air hole is provided in the notch. The air intake action provided by the intake port is added to the suction action of the blades to enhance the air supply capability.
【００１０】[0010]
【発明の実施の形態】次に、この発明の実施の一形態に
ついて、図を参照しながら説明する。図１〜図３は、こ
の発明の第１の実施例を示すもので、直角肩削り用のス
ローアウェイ式正面フライスの例である。この正面フラ
イスは、環状をなす工具本体１の先端周縁部に切欠きし
て形成された複数のチップ座に、切刃チップ２が着脱自
在に装着されたものである。切刃チップ２は平行四辺形
平板状をなし、中央部に設けられた取付穴に挿入した締
付ねじ３によって装着が行われる。また、切刃チップ２
の一側面がすくい面４となっていて、その前方には切屑
ポケット５が形成されている。BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment of the present invention, which is an example of a throw-away type face milling machine for right-angle shoulder milling. In this front milling cutter, cutting blade tips 2 are detachably attached to a plurality of tip seats formed by cutting out at a peripheral edge of a tip of a tool body 1 having an annular shape. The cutting blade tip 2 is in the shape of a parallelogram plate, and is attached by a tightening screw 3 inserted into a mounting hole provided in the central portion. Also, the cutting edge tip 2
One side surface is a rake surface 4, and a chip pocket 5 is formed in front of it.
【００１１】工具本体１の外周部には、切刃チップ２の
後端側の部分に、通常は切刃チップ２に相当する数の切
欠き６が設けられる。この切欠き６は、工具回転によっ
て空気を抱き込み、正面フライスの正面側に送風する作
用を有するように形成されている。いわば、工具本体１
の切欠き６の残部が、扇風機の羽根７となるような形状
となっている。そして、切欠き６の先端部から工具本体
１の先端部まで貫通するエアー穴８が穿設され、工具回
転によって作り出された風が、エアー穴８を通じて先端
に送られるようになっている。On the outer peripheral portion of the tool body 1, a number of notches 6 corresponding to the number of the cutting blade tips 2 are usually provided at the rear end side portion of the cutting blade tips 2. The notch 6 is formed so as to enclose air by rotating the tool and blow the air to the front side of the front milling cutter. So to speak, the tool body 1
The remaining portion of the notch 6 is shaped to be the blade 7 of the fan. Then, an air hole 8 penetrating from the tip of the notch 6 to the tip of the tool body 1 is bored, and the wind generated by the tool rotation is sent to the tip through the air hole 8.
【００１２】エアー穴８の先端部開口が、エアーの吹出
し口９となる。そして、工具本体１の先端面には、吹出
し口９を含む形に連絡溝１０が凹設される。この連絡溝
１０の一端は、切屑ポケット５の端部と連通している。
切削加工時に、吹出し口９より供給されたエアーは、連
絡溝１０と加工材料１１の表面１２とによって形成され
る通風路を通って、切屑ポケット５の中に流れ出る。The opening of the tip of the air hole 8 serves as an air outlet 9. A communication groove 10 is formed in the tip surface of the tool body 1 so as to include the outlet 9. One end of the communication groove 10 communicates with the end of the chip pocket 5.
At the time of cutting, the air supplied from the outlet 9 flows out into the chip pocket 5 through the ventilation passage formed by the communication groove 10 and the surface 12 of the processing material 11.
【００１３】正面フライスが直角肩削り用のフライスの
場合は、切屑ポケット５と加工材料１１の壁面１３との
間でも通風路が形成されるから、エアーはさらに、切屑
ポケット５の先端から後端に向かって流れ出ようとす
る。このとき、切削の切屑は、エアーの勢いでもって切
屑ポケット５の外に向かって吹き出される。また、エア
ーは、切刃チップ２の刃先を冷却するという作用も有し
ている。このようなエアーによる切屑排出と冷却の作用
は、溝削りや壁面１３の高さの高い深堀りにおいて一層
顕著に現れる。When the front milling cutter is a milling cutter for right-angled shoulder milling, an air passage is formed between the chip pocket 5 and the wall surface 13 of the processing material 11, so that air is further generated from the tip end to the rear end of the chip pocket 5. Try to flow toward. At this time, the cutting chips are blown out of the chip pocket 5 by the force of air. The air also has the function of cooling the blade tip of the cutting blade tip 2. The action of chip discharge and cooling by such air becomes more remarkable in groove cutting and deep digging where the height of the wall surface 13 is high.
【００１４】図４は、この発明の第２の実施例を示すも
ので、前記と同一箇所には同符号を付してある。この発
明の特徴は、エアー穴８の吹出し口９が切屑ポケット５
の中に設けられることにある。吹出し口９から供給され
るエアーは、切刃チップ２の刃先に直接噴射して冷却す
るとともに、切屑ポケット５に溜まる切屑を吹き飛ばす
作用をもっている。図４は直角肩削り用の正面フライス
を例示したものであるが、実用的には、加工材料１１の
壁面１３との間に通風路の形成が困難なアンギュラ形の
正面フライスに好適するという特徴を有している。FIG. 4 shows a second embodiment of the present invention, in which the same parts as those described above are designated by the same reference numerals. The feature of the present invention is that the air outlet 8 of the air hole 8 is the chip pocket 5.
It is to be provided in. The air supplied from the blowout port 9 has the action of directly injecting the blade tip of the cutting blade tip 2 to cool it and blowing off the chips accumulated in the chip pocket 5. FIG. 4 exemplifies a face milling machine for right-angled shoulder milling, but practically, it is suitable for an angular milling face milling machine in which it is difficult to form a ventilation path between the machining material 11 and the wall surface 13. have.
【００１５】図５〜図７は、この発明の第３の実施例を
示すもので、前記と同一箇所には同符号を付してある。
工具本体１の中心部には、正面フライスをアーバに取り
付けるためのセンタ穴１４および取付座ぐり穴１５が設
けられている。取付座ぐり穴１５の内周面には切欠き６
が形成されている。この切欠き６は、工具回転によって
空気を抱き込み、正面フライスの正面側に送風する作用
を有する形状となっている。いわば、工具本体１の切欠
き６の残部が、換気扇の羽根７として作用する形状のも
のである。5 to 7 show a third embodiment of the present invention, in which the same parts as those described above are designated by the same reference numerals.
A center hole 14 and a mounting counterbore 15 for mounting the front milling cutter to the arbor are provided in the center of the tool body 1. Notch 6 on the inner peripheral surface of the mounting counterbore 15
Are formed. The notch 6 has a shape having an effect of enclosing air by tool rotation and blowing the air to the front side of the front milling cutter. In other words, the remaining portion of the notch 6 of the tool body 1 has a shape that acts as the blade 7 of the ventilation fan.
【００１６】換気扇状の部分にエアーを供給するため
に、カッタ本体１の後端側から穿設されて切欠き６の中
で開口するエアー穴８が設けられる。エアー穴８の呼込
み口１６を工具本体１の切刃チップ２の後端側外周部に
設けた切欠き１７の中に設けるようにすれば、羽根７に
よる吸引作用に送風作用が加わって、エアーの供給能力
が一層高まる。In order to supply air to the ventilation fan-shaped portion, an air hole 8 which is bored from the rear end side of the cutter body 1 and opens in the notch 6 is provided. If the intake port 16 of the air hole 8 is provided in the notch 17 provided on the outer peripheral portion of the cutting edge tip 2 of the tool body 1, the air blowing action is added to the suction action of the blades 7, Supply capacity will be further enhanced.
【００１７】切欠き１７と切屑ポケット５とは、工具本
体１の先端面に凹設された連絡溝１０によって連通して
いる。切削加工時に、エアー穴８から吸引されたエアー
は、連絡溝１０と加工材料１１の表面１２とによって形
成される通風路を通って、切屑ポケット５に送り出され
る。この正面フライスが直角肩削り用のフライスの場合
は、切屑ポケット５と加工材料１１の壁面１３との間に
も通風路が形成されるから、エアーは切屑ポケット５の
先端から後端に向かって流れるようになる。The notch 17 and the chip pocket 5 are communicated with each other by a connecting groove 10 which is recessed in the tip surface of the tool body 1. During the cutting process, the air sucked from the air holes 8 is sent to the chip pocket 5 through the ventilation passage formed by the communication groove 10 and the surface 12 of the processing material 11. When this front milling cutter is a milling cutter for right-angled shoulders, an air passage is formed between the chip pocket 5 and the wall surface 13 of the processing material 11, so that air flows from the chip pocket 5 toward the rear end. It comes to flow.
【００１８】[0018]
【発明の効果】回転切削工具の工具本体に切欠きして形
成した羽根により、工具回転に伴う送風作用または吸引
作用によって作り出されるエアーをフライス先端方向に
送り出し、切屑ポケットや切刃近傍に自給できるように
なる。したがって、専用のエアー供給装置を設備するこ
となく、切屑排出や切刃冷却といった通常のエアー供給
効果と同等の効果が得られるようになる。また、連絡溝
によって、回転切削工具の先端側から後端側にエアーを
流出させる構成の場合は、切屑ポケットの先端から後端
に向かうエアーの流れを作ることができるから、特に直
角肩削り用の正面フライスにおいて効果的である。The blades formed by notching the tool body of the rotary cutting tool send out the air generated by the blowing action or the suction action accompanying the tool rotation in the direction of the tip of the milling cutter, and can self-sufficiently in the vicinity of the chip pocket and the cutting edge. Like Therefore, it is possible to obtain the same effects as the normal air supply effects such as chip discharge and cutting edge cooling without installing a dedicated air supply device. Also, if the connecting groove allows air to flow from the tip side of the rotary cutting tool to the rear end side, it is possible to create an air flow from the tip of the chip pocket to the rear end, especially for right-angle shoulder milling. Effective in face milling.
【図１】この発明の第１実施例の正面図を示す。FIG. 1 shows a front view of a first embodiment of the present invention.
【図２】図１の底面図を示す。2 shows a bottom view of FIG.
【図３】図１の平面図を示す。FIG. 3 shows a plan view of FIG.
【図４】この発明の第２実施例の正面図を示す。FIG. 4 shows a front view of a second embodiment of the present invention.
【図５】この発明の第３実施例の正面図を示す。FIG. 5 shows a front view of a third embodiment of the present invention.
【図６】図５の底面図を示す。6 shows a bottom view of FIG.
【図７】図５の平面図を示す。FIG. 7 shows a plan view of FIG.
１ 工具本体 ２ 切刃チップ ５ 切屑ポケット ６ 切欠き ７ 羽根 ８ エアー穴 １０ 連絡溝 1 Tool body 2 cutting edge chips 5 chip pockets 6 notches 7 feathers 8 air holes 10 connecting groove
Claims (6)
チップが備わり、この切刃チップのすくい面前方には切
屑ポケットが配設された回転切削工具であって、前記工
具本体の前記切刃チップの後端側外周部は切欠きされ、
切欠き残部によって先端に向かう送風作用を有する羽根
が形成されるとともに、風を先端側に導くエアー穴が穿
設されていることを特徴とするエアー自給式回転切削工
具。1. A rotary cutting tool in which a cutting edge tip is provided on the peripheral edge of the tip of an annular tool body, and a chip pocket is arranged in front of the rake face of the cutting edge tip. The outer peripheral portion of the cutting edge tip on the rear end side is notched,
An air self-contained rotary cutting tool characterized in that a blade having an air blowing action toward the tip is formed by the remaining notch, and an air hole for guiding the wind to the tip side is bored.
にて開口する吹出し口を有するとともに、この吹出し口
と前記切屑ポケットとを結ぶ連絡溝が凹設されているこ
とを特徴とする請求項１に記載のエアー自給式回転切削
工具。2. The air hole has a blowout opening that opens at the tip surface of the tool body, and a communication groove that connects the blowout opening and the chip pocket is recessed. Item 1. An air self-contained rotary cutting tool according to Item 1.
て開口する吹出し口を有することを特徴とする請求項１
に記載のエアー自給式回転切削工具。3. The air hole has an outlet opening in the chip pocket.
Air self-contained rotary cutting tool described in.
チップが備わり、この工具本体の先端中央部には取付座
ぐり穴の配設された回転切削工具であって、前記取付座
ぐり穴は切欠きされ、切欠き残部によって先端に向かう
送風作用を有する羽根が形成されるとともに、前記切欠
きにエアーを呼び込むエアー穴が穿設されていることを
特徴とするエアー自給式回転切削工具。4. A rotary cutting tool in which a cutting edge tip is provided on the peripheral edge of the tip of an annular tool body, and a mounting counterbore hole is provided at the center of the tip of the tool body. The hole is notched, a blade having a blowing action toward the tip is formed by the remaining notch, and an air hole for drawing air into the notch is formed, and an air self-contained rotary cutting tool is formed. .
ットとを結ぶ連絡溝が凹設されていることを特徴とする
請求項４に記載のエアー自給式回転切削工具。5. The air self-contained rotary cutting tool according to claim 4, wherein a communication groove that connects the air outlet of the air hole and the chip pocket is recessed.
外周部は切欠きされ、この切欠き内に前記エアー穴の呼
込み口が設けられることを特徴とする請求項４または請
求項５に記載のエアー自給式回転切削工具。6. The outer peripheral portion of the tool body on the rear end side of the cutting blade tip is notched, and a suction port for the air hole is provided in the notch. Air self-contained rotary cutting tool described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002067816A JP4135868B2 (en) | 2002-03-13 | 2002-03-13 | Air self-contained rotary cutting tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002067816A JP4135868B2 (en) | 2002-03-13 | 2002-03-13 | Air self-contained rotary cutting tool |
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| Publication Number | Publication Date |
|---|---|
| JP2003266233A true JP2003266233A (en) | 2003-09-24 |
| JP4135868B2 JP4135868B2 (en) | 2008-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002067816A Expired - Lifetime JP4135868B2 (en) | 2002-03-13 | 2002-03-13 | Air self-contained rotary cutting tool |
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| JP (1) | JP4135868B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010188431A (en) * | 2009-02-16 | 2010-09-02 | Toyo Tanso Kk | Surface grinding tool device |
| CN103264315A (en) * | 2013-04-27 | 2013-08-28 | 浙江工业大学 | Numerical-control machining chip removal device for light nonmetal materials |
| CN103697773A (en) * | 2013-11-28 | 2014-04-02 | 河南理工大学 | Directionally-controlled blasting crack prefabrication tool |
| CN109663962A (en) * | 2018-12-29 | 2019-04-23 | 张家港中天达工具有限公司 | It is a kind of for processing the cutter of sharp mouth sharp-tooth shaped structure |
| CN112372041A (en) * | 2020-10-19 | 2021-02-19 | 王荣云 | Cutting machine tool for metal processing |
-
2002
- 2002-03-13 JP JP2002067816A patent/JP4135868B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010188431A (en) * | 2009-02-16 | 2010-09-02 | Toyo Tanso Kk | Surface grinding tool device |
| CN103264315A (en) * | 2013-04-27 | 2013-08-28 | 浙江工业大学 | Numerical-control machining chip removal device for light nonmetal materials |
| CN103697773A (en) * | 2013-11-28 | 2014-04-02 | 河南理工大学 | Directionally-controlled blasting crack prefabrication tool |
| CN109663962A (en) * | 2018-12-29 | 2019-04-23 | 张家港中天达工具有限公司 | It is a kind of for processing the cutter of sharp mouth sharp-tooth shaped structure |
| CN112372041A (en) * | 2020-10-19 | 2021-02-19 | 王荣云 | Cutting machine tool for metal processing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4135868B2 (en) | 2008-08-20 |
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