JPH09192905A - Cutting tool for grooving or protrusive cutting work - Google Patents

Cutting tool for grooving or protrusive cutting work

Info

Publication number
JPH09192905A
JPH09192905A JP322896A JP322896A JPH09192905A JP H09192905 A JPH09192905 A JP H09192905A JP 322896 A JP322896 A JP 322896A JP 322896 A JP322896 A JP 322896A JP H09192905 A JPH09192905 A JP H09192905A
Authority
JP
Japan
Prior art keywords
throw
chips
away tip
holder
grooving
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
Application number
JP322896A
Other languages
Japanese (ja)
Inventor
Hisayoshi Kimura
寿良 木村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP322896A priority Critical patent/JPH09192905A/en
Publication of JPH09192905A publication Critical patent/JPH09192905A/en
Pending legal-status Critical Current

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  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a tool which smoothly discharges chips toward the sideway direction of a holder. SOLUTION: In a cutting tool, a throw-away tip pressing part top face 5, which constitutes a presser bar 3 for pressing a throw-away tip 1 and which determines the direction in which chips from a material to be cut off are discharged, is inclined. In a holder, with a wedge groove into which a wedge part on the opposite side of the throw-away tip 1 is press-fitted, this contrivance can be applied to a tool in which the throw-away tip pressing part top face of the holder determines the direction of discharge of chips from the material to be cut off.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、機械器具等の溝入
れ加工や突切り加工に用いる切削工具に関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting tool used for grooving and parting off machine tools and the like.

【0002】[0002]

【従来の技術】機械部品等に溝を形成するのに使用され
る溝入れ加工用切削工具は、例えば実開平6−3503
号公報に見られるように、スローアウェイチップをホル
ダ本体のチップ座に締め付けねじ孔を備えた押さえ金で
押圧固定(クランプ)するタイプがよくみられる。また
溝入れ加工に類似した突切り加工に使用される突切り加
工用切削工具は、例えば実公昭62−18322号公報
に示される如く、ホルダに外広がりのくさび溝を設け、
この溝にスローアウェイチップの切刃部分と反対側のく
さび部を圧入してチップをクランプするタイプがある。
2. Description of the Related Art A cutting tool for grooving used to form a groove in a machine part is, for example, an actual flat blade 6-3503.
As seen in Japanese Patent Laid-Open Publication No. JP-A-2003-242, a type in which a throw-away tip is pressed and fixed (clamped) by a presser having a screw hole for tightening the tip seat of a holder body is often seen. Further, a cutting tool for parting off, which is used for parting off similar to grooving, is provided with an outwardly extending wedge groove on a holder as shown in, for example, Japanese Utility Model Publication No. 62-18322.
There is a type that clamps the tip by press-fitting the wedge part on the side opposite to the cutting edge part of the throw-away tip in this groove.

【0003】これらを用いた溝入れ、突切り加工に於い
ては、通常は幅が2mmから10mm、厚みが0.00
5mmから0.3mm程度の幅が広く、且つ、厚さが薄
い切り屑が連続して生成される。従来この切り屑をスム
ーズに処理するために、図5の様にスローアウェイチッ
プのすくい面に凹みを設け、切り屑を湾曲(カール)さ
せることで、分断しやすくする様な工夫がなされてい
た。上記のチップのすくい面の凹みの如きものは、チッ
プブレーカーと称されている。
In grooving and parting using these materials, the width is usually 2 mm to 10 mm and the thickness is 0.00
Chips having a wide width of about 5 mm to 0.3 mm and a small thickness are continuously generated. Conventionally, in order to smoothly dispose of the chips, a dent was provided on the rake face of the throw-away tip as shown in FIG. 5, and the chips were curved (curled) to make the chips easy to divide. . Such a dent on the rake face of the chip is called a chip breaker.

【0004】[0004]

【発明が解決しようとする課題】従来この種の工具で加
工した際に生成される切り屑は薄くて幅広なため、切り
屑の排出方向あるいは、切り屑の除去処理手段の制御が
むずかしい。チップブレーカ及びその後端に続いて更に
後方へ立上がる押さえ金の面によって、被削材からの切
り屑を上方へカールさせて排出するようになっているの
が通常であるが、カールしながら押え金の面に沿って後
方に送られた切り屑は上方においてもつれ合って分断さ
れてゆく。
Conventionally, since chips produced when machining with a tool of this type are thin and wide, it is difficult to control the chip discharge direction or the chip removal processing means. The chip breaker and the surface of the presser foot that rises further rearward following the rear end of the work piece are usually designed to curl chips from the work material upwards and eject them. The chips sent backward along the gold surface are entangled and divided at the top.

【0005】これにより、切り屑が被削材の加工面を傷
つけるだけでなくホルダや被削材にからまって作業を中
断させたり、甚だしい場合はスローアウェイチップの露
出する部分を欠損させ破損に至らしめるという問題があ
った。すなわち、チップブレーカの形状等をいかに工夫
しても、切り屑自体の排出方向を大きく変えることは無
理でもあり、更に送り速度(切削速度)によっては、切
り屑をカールさせること自体が困難になってくる場合も
ある。
As a result, not only the chips damage the machined surface of the work material, but also the work is interrupted by being caught in the holder and the work material, and in extreme cases, the exposed portion of the throw-away tip is damaged and damaged. There was a problem of reaching. That is, no matter how the shape of the chip breaker is devised, it is impossible to greatly change the discharge direction of the chips themselves, and it becomes difficult to curl the chips depending on the feed speed (cutting speed). It may come.

【0006】もちろんチップブレーカのついたスローア
ウェイチップを製造するには、チップブレーカ無しのも
のを製造する場合と比して、粉末を成型する金型自体の
型状が複雑となりコスト高ともなる。本発明の課題は、
この様な切り屑をスムーズに処理する工具を提供するこ
とにある。
Of course, in order to manufacture a throw-away chip with a chip breaker, the mold itself for molding powder is complicated and the cost is higher than in the case where a chip breaker is not manufactured. The object of the present invention is to
It is to provide a tool for smoothly treating such chips.

【0007】[0007]

【課題を解決するための手段】上記の課題を解決するた
め、本発明においては、ホルダーに取り付けた押さえ金
具あるいはホルダの一部であるスローアウェイチップ押
圧部の上面を工具送り方向に対して斜めにとり、この部
分で切り屑の排出方向を強制的に変えることにより排出
する切り屑をホルダの側面方向に一定に排出する様に工
夫したものである。なおこの時、斜めにとる角度は3度
から60度とした。
In order to solve the above-mentioned problems, in the present invention, the upper surface of the pressing metal fitting attached to the holder or the throw-away tip pressing portion which is a part of the holder is slanted with respect to the tool feeding direction. In this regard, the device is devised so that chips to be discharged can be discharged uniformly in the lateral direction of the holder by forcibly changing the chip discharging direction at this portion. At this time, the angle taken obliquely was 3 to 60 degrees.

【0008】[0008]

【発明の実施の態様】本発明の工具は、チップブレーカ
ーを付さないスローアウェイチップをホルダのチップ座
に押圧固定する場合は、チップ押圧部上面を工具の送り
方向に対して側方に向けて斜めに形成してある。従って
生成された切り屑がこれに当たって強制的にその排出方
向を変えられ、ホルダ側面方向に安定して排出される。
BEST MODE FOR CARRYING OUT THE INVENTION In the tool of the present invention, when a throw-away tip without a tip breaker is pressed and fixed to the tip seat of a holder, the top surface of the tip pressing portion is directed laterally with respect to the feed direction of the tool. It is formed diagonally. Therefore, the generated chips are forced to change their discharge direction by hitting them, and are stably discharged in the holder side surface direction.

【0009】この構成を用いることにより、切り屑が工
具や加工物にからまって作業に支障をきたしたり、ホル
ダ上面に当たって加工物の方へ戻り、加工物を傷つける
問題が解消される。なお、斜めにとる角度が小さいと排
出方向の変化が少なく、逆に大きすぎるとチップ押圧部
の強度が低下するので、3度から60度程度が望まし
い。
By using this structure, it is possible to solve the problems that the chips are entangled in the tool or the work piece to hinder the work, or hit the upper surface of the holder to return to the work piece and damage the work piece. It should be noted that if the angle taken obliquely is small, the change in the discharge direction is small, and conversely, if it is too large, the strength of the chip pressing portion is reduced.

【0010】スローアウェイチップ押圧部の側方に向け
て斜めに取られた上面の長さは、その幅の2倍から5倍
もあれば十分である。その長さが短すぎると、切り屑の
排出効果が不十分となるが、2倍程度あれば十分であ
る。その長さが長すぎるということはないが工具全体の
設計バランスとの関係で、適切な長さが決定されること
になる。
It is sufficient that the length of the upper surface taken obliquely toward the side of the throw-away tip pressing portion is 2 to 5 times its width. If the length is too short, the chip discharging effect will be insufficient, but about twice the amount is sufficient. The length is not too long, but an appropriate length will be decided in consideration of the design balance of the entire tool.

【0011】[0011]

【実施例】図1に本願発明の実施例の1つを示す。図の
1はスローアウェイチップ、2はホルダ、3は押さえ
金、4は締め付け用ねじ孔、5は押さえ金のスローアウ
ェイチップの押圧部分で、その上面は側方に向かって傾
斜する形状の面で形成されている。スローアウェイチッ
プの切刃7で切削された被削物から発生するカールした
切り屑は、排出方向を与える面であるスローアウェイチ
ップ押さえ部の上面5が側面に向けて斜めに形成されて
いるために、切り屑は規則正しく排出されていく。又、
図2は図1の押さえ金3の工夫を説明したものであり、
θは3度から60度が望ましい。すなわち、図3は斜め
に取られたスローアウェイチップ押圧部を示したもので
(a)は横から(b)は斜め後方からみたものである。
FIG. 1 shows one of the embodiments of the present invention. In the figure, 1 is a throw-away tip, 2 is a holder, 3 is a presser foot, 4 is a screw hole for tightening, 5 is a pressing portion of the throw-away tip of the presser foot, the upper surface of which is a surface inclined to the side. Is formed by. The curled chips generated from the work cut by the cutting edge 7 of the throw-away tip have the upper surface 5 of the throw-away tip pressing portion, which is the surface that gives the discharge direction, formed obliquely toward the side surface. Then, the chips are discharged regularly. or,
FIG. 2 illustrates the device of the presser foot 3 of FIG.
θ is preferably 3 degrees to 60 degrees. That is, FIG. 3 shows the throw-away tip pressing portion taken obliquely, (a) being viewed from the side and (b) being viewed from the oblique rear.

【0012】図3は本願発明の別の実施例であり、くさ
び溝8を備えたホルダ2でのスローアウェイチップ押圧
部の上面5を側方に向けて斜めに形成したものである。
図4に示す様に、切り屑はX印の方に排出されることは
ない。切り屑がホルダや加工物にからまったり加工物を
傷つけたりすることはない。すなわち○印の方に規則正
しくカールされ排出される。とりわけ、端部溝入れ加工
においては、細かく分断された切り屑よりも一定にカー
ルした切り屑の方が望ましく、その処理が問題であった
が、本発明により安定した切り屑処理が実現した。
FIG. 3 shows another embodiment of the present invention, in which the upper surface 5 of the throw-away tip pressing portion of the holder 2 having the wedge groove 8 is formed obliquely toward the side.
As shown in FIG. 4, chips are not discharged toward the X mark. The chips do not get caught in the holder or the work piece or damage the work piece. That is, the circles are regularly curled and discharged. In particular, in the end grooving process, it is preferable to use chips that have been curled uniformly rather than chips that have been finely divided, and the treatment thereof was a problem, but the present invention realized stable chip treatment.

【0013】[0013]

【発明の効果】以上述べたように、本発明の工具はチッ
プ押圧部の上部を斜めにとってあるので、作成された切
り屑がこれに当たって、排出方向が変わることにより、
ホルダや加工物にからみついて、作業がストップした
り、被削材に傷をつけたりする恐れがなくなる。
As described above, in the tool of the present invention, since the upper portion of the tip pressing portion is inclined, the produced chips hit the tip and the ejection direction is changed.
There is no risk of entanglement with the holder or the work piece, stopping the work, and scratching the work material.

【図面の簡単な説明】[Brief description of the drawings]

【図1】切り屑の排出方向を変えられる本願発明の実施
例を示す図である。
FIG. 1 is a diagram showing an embodiment of the present invention in which the chip discharge direction can be changed.

【図2】本願発明の押さえ金の状況を示した図である。FIG. 2 is a diagram showing a state of a presser foot of the present invention.

【図3】くさび溝を備えたホルダのスローアウェイチッ
プ押さえ部上面を斜めに取った本願発明の他の実施例を
示す図である。
FIG. 3 is a view showing another embodiment of the present invention in which the upper surface of the throw-away tip holding portion of the holder having the wedge groove is obliquely taken.

【図4】切り屑の排出方向を示す図である。FIG. 4 is a view showing a chip discharge direction.

【図5】切り屑処理の従来の例を示す図である。FIG. 5 is a diagram showing a conventional example of chip disposal.

【符号の説明】[Explanation of symbols]

1:スローアウェイチップ 2:ホルダ 3:押さえ金 4:締め付けねじ孔 5:スローアウェイチップ押圧部の斜めに取られた上面 6:チップブレーカー 7:スローアウェイチップの切刃 8:くさび溝 9:切り屑 1: Throw-away tip 2: Holder 3: Presser foot 4: Tightening screw hole 5: Diagonal upper surface of throwaway tip pressing part 6: Tip breaker 7: Cutting edge of throw-away tip 8: Wedge groove 9: Cutting waste

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 スローアウェイチップを押圧する押さえ
金の構成部分であるスローアウェイチップ押圧部の上面
であって、被削材の切り屑の排出方向を与える面を側方
に向けて斜めに形成したことを特徴とする溝入れ、突切
り加工用切削工具。
1. A top surface of a throw-away tip pressing portion, which is a constituent part of a presser foot for pressing a throw-away tip, and a surface which gives a discharge direction of chips of a work material is formed obliquely toward the side. A cutting tool for grooving and parting that is characterized.
【請求項2】 スローアウェイチップの切刃と反対側の
くさび部を圧入するくさび溝が設けられたホルダのスロ
ーアウェイチップ押圧部の上面であって、被削材の切り
屑の排出方向を与える面を側方に向けて斜めに形成した
ことを特徴とする溝入れ、突切り加工用切削工具。
2. An upper surface of a throw-away tip pressing portion of a holder provided with a wedge groove for press-fitting a wedge portion of the throw-away tip on the side opposite to the cutting edge, which gives a discharge direction of chips of a work material. A cutting tool for grooving and parting, characterized in that the surface is formed obliquely to the side.
【請求項3】 前記側方に向けて斜めに形成した面の角
度が3度から60度であることを特徴とする請求項1又
は請求項2記載の溝入れ、突切り加工用切削工具。
3. The cutting tool for grooving and parting according to claim 1 or 2, wherein the angle of the surface formed obliquely to the side is 3 degrees to 60 degrees.
【請求項4】 前記側方に向けて斜めに形成した面の長
さが、その幅の2倍から5倍であることを特徴とする請
求項1〜3のいずれか1項に記載の溝入れ、突切り加工
用切削工具。
4. The groove according to any one of claims 1 to 3, wherein the length of the surface formed obliquely to the side is 2 to 5 times its width. Cutting tool for insert and parting.
JP322896A 1996-01-11 1996-01-11 Cutting tool for grooving or protrusive cutting work Pending JPH09192905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP322896A JPH09192905A (en) 1996-01-11 1996-01-11 Cutting tool for grooving or protrusive cutting work

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP322896A JPH09192905A (en) 1996-01-11 1996-01-11 Cutting tool for grooving or protrusive cutting work

Publications (1)

Publication Number Publication Date
JPH09192905A true JPH09192905A (en) 1997-07-29

Family

ID=11551601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP322896A Pending JPH09192905A (en) 1996-01-11 1996-01-11 Cutting tool for grooving or protrusive cutting work

Country Status (1)

Country Link
JP (1) JPH09192905A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015009360A (en) * 2013-06-28 2015-01-19 サンドビック インテレクチュアル プロパティー アクティエボラーグ Tool for chip removal machining and insert-holding blade, and replaceable cutting insert
US20160175938A1 (en) * 2014-12-19 2016-06-23 Kennametal Inc. Tool holder for a cutting insert and process for manufacturing the tool holder
CN117415348A (en) * 2023-12-14 2024-01-19 赣州澳克泰工具技术有限公司 Bevel cutting insert and cutting tool with enhanced chip breaking capability

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015009360A (en) * 2013-06-28 2015-01-19 サンドビック インテレクチュアル プロパティー アクティエボラーグ Tool for chip removal machining and insert-holding blade, and replaceable cutting insert
US20160175938A1 (en) * 2014-12-19 2016-06-23 Kennametal Inc. Tool holder for a cutting insert and process for manufacturing the tool holder
US10029313B2 (en) * 2014-12-19 2018-07-24 Kennametal Inc. Tool holder for a cutting insert and process for manufacturing the tool holder
CN117415348A (en) * 2023-12-14 2024-01-19 赣州澳克泰工具技术有限公司 Bevel cutting insert and cutting tool with enhanced chip breaking capability
CN117415348B (en) * 2023-12-14 2024-03-15 赣州澳克泰工具技术有限公司 Bevel cutting insert and cutting tool with enhanced chip breaking capability

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