JP4383129B2 - Throw-away cutting tool - Google Patents

Throw-away cutting tool Download PDF

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JP4383129B2
JP4383129B2 JP2003304793A JP2003304793A JP4383129B2 JP 4383129 B2 JP4383129 B2 JP 4383129B2 JP 2003304793 A JP2003304793 A JP 2003304793A JP 2003304793 A JP2003304793 A JP 2003304793A JP 4383129 B2 JP4383129 B2 JP 4383129B2
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tip
throw
away
cutting tool
holder
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JP2005074531A (en
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勉 山寄
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Kyocera Corp
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Kyocera Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/36—Other features of cutting inserts not covered by B23B2200/04 - B23B2200/32
    • B23B2200/369—Mounted tangentially, i.e. where the rake face is not the face with the largest area

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

Description

本発明は、溝入れ加工やねじ切り加工等の切削加工に用いるスローアウェイ式切削工具に関する。   The present invention relates to a throw-away cutting tool used for cutting such as grooving and threading.

従来、溝入れ加工やねじ切り加工に用いるスローアウェイ式切削工具として、略三角形状のスローアウェイチップをホルダに固定した形状が知られており、スローアウェイチップのホルダへの固定法としては、図６に示すようなスローアウェイチップの主面中央に貫通した穴にねじを挿入しホルダへ固定するねじ止め式、図７に示すようなホルダ上面に設けたクランプ部材でチップ上面を押さえつけてホルダに固定するトップクランプ式等がある。また、略三角形状の溝入れ、ねじ切り加工用スローアウェイチップは、長尺棒状のスローアウェイチップに比べ、使用コーナー（切刃）数が多く、コストメリットに優れている（例えば、特許文献１参照）。
実開平４−１１５５０４号公報 Conventionally, as a throw-away cutting tool used for grooving and threading, a shape in which a substantially triangular throw-away tip is fixed to a holder is known. As a method of fixing the throw-away tip to a holder, FIG. A screw-in type that inserts a screw into a hole that penetrates the center of the main surface of the throw-away tip as shown in Fig. 7 and fixes it to the holder. There is a top clamp type. Moreover, the throwaway insert for grooving and threading in a substantially triangular shape has a larger number of operating corners (cutting blades) than the long rod-shaped throwaway insert, and is excellent in cost merit (for example, see Patent Document 1). ).
Japanese Utility Model Publication No. 4-115504

しかしながら、このような略三角形状のスローアウェイチップをホルダに装着した切削工具では、ホルダのチップ取付座を構成するホルダ先端側の切刃面のあご下部（３３）の肉厚が十分に得られず、加工を繰り返すうちに切削負荷によって座面が次第に変形し（図８参照。）、スローアウェイチップの拘束が不安定になってくる。その結果、チップにびびりや欠損が発生し、加工不良の原因になるという問題があった。   However, in the cutting tool in which such a generally triangular throw-away tip is mounted on the holder, the thickness of the lower jaw portion (33) of the cutting edge surface on the tip side of the holder that constitutes the tip mounting seat of the holder is sufficiently obtained. However, as the machining is repeated, the seating surface is gradually deformed by the cutting load (see FIG. 8), and the throwaway tip becomes unstable. As a result, there is a problem that the chip is chattered or chipped, which causes processing defects.

また図７に示したようなトップクランプ式では、切屑の排出をクランプ部材が阻害するため、切屑処理が不安定になったり、切屑が当たることによりクランプ部材が損傷しやすくなり、早期のタイミングで部品交換をしなければならなくなるといった不具合もあった。   Moreover, in the top clamp type as shown in FIG. 7, since the clamp member inhibits chip discharge, the chip processing becomes unstable or the clamp member is easily damaged when hit with the chip. There was also a problem that parts had to be replaced.

本発明は、このような従来技術の課題を解決するためになされたものであり、溝入れやねじ切り等の切削加工において、ホルダに設けた取付座面の変形を抑え、長期にわたり安定した加工ができるスローアウェイ式切削工具を提供することを目的とする。   The present invention has been made to solve such problems of the prior art, and in the cutting process such as grooving and threading, the deformation of the mounting seat surface provided on the holder is suppressed, and stable processing can be performed over a long period of time. An object of the present invention is to provide a throw-away cutting tool that can be used.

前記課題を解決するため、本発明のスローアウェイ式切削工具は、略三角形の２つの主面と厚み方向に外周側面とを備えた略平板状をなし、前記外周側面の各コーナー部近傍にはすくい面、前逃げ面、および該すくい面と前逃げ面との交差稜線に切刃が形成されてなるとともに、前記主面の略三角形の各辺部に続く前記外周側面には前記すくい面から離間する凹部が設けられているスローアウェイチップが、ホルダの、スローアウェイチップ装着時に切刃のあご下部に位置する先端側に前記スローアウェイチップの凹部と係合する先端突出部を、後端側に前記先端突出部と係合する凹部形成面とは別の外周側面が当接される後端壁面を備えたチップ取付座に装着されてなることを特徴としている。
かかる構成によれば、チップ取付座部の先端突出部を備えたことにより、ホルダ先端側の取付座面下部、つまり切刃のあご下部における肉厚が大きくなり、それに伴いホルダ強度を高められ、チップ取付座の変形が抑制されて長寿命な工具を得ることができる。 In order to solve the above problems, the throw-away cutting tool of the present invention has a substantially flat plate shape having two substantially triangular main surfaces and an outer peripheral side surface in the thickness direction, and near each corner portion of the outer peripheral side surface. A cutting edge is formed on the rake face, the front flank face, and an intersecting ridge line between the rake face and the front flank face, and the outer peripheral side surface following each side of the substantially triangular shape of the main face is formed from the rake face. A throwaway tip provided with a recess to be spaced apart has a tip protruding portion that engages with the recess of the throwaway tip on the tip side of the holder positioned at the lower part of the jaw of the cutting blade when the throwaway tip is mounted. Further, it is characterized in that it is mounted on a chip mounting seat provided with a rear end wall surface against which an outer peripheral side surface different from a recessed portion forming surface that engages with the tip protruding portion.
According to such a configuration, by providing the tip protruding portion of the tip mounting seat portion, the thickness of the lower mounting seat surface on the holder tip side, that is, the lower jaw portion of the cutting blade is increased, and accordingly the holder strength can be increased, It is possible to obtain a long-life tool by suppressing the deformation of the chip mounting seat.

また、前記凹部と前記チップ取付座の先端突出部との係合面は、ホルダ底面と平行な平面で構成されていることが、チップの座りを安定させるとともに切刃高さの位置精度を高めることができる点で望ましい。   In addition, the engagement surface between the recess and the tip protruding portion of the tip mounting seat is constituted by a plane parallel to the bottom surface of the holder, which stabilizes the seat of the tip and increases the positional accuracy of the cutting edge height. It is desirable in that it can.

さらに、前記主面の中央間を貫通する貫通穴を備えるとともに、ねじ部材を前記貫通穴に挿入し前記チップ取付座へ締込んで前記スローアウェイチップが固定されることが、部品点数を最小限にできるとともにホルダの構造も簡素化できるので、結果として工具コストを抑えることが出来る点で望ましい。   Furthermore, a through-hole penetrating between the centers of the main surfaces is provided, and a screw member is inserted into the through-hole and tightened into the tip mounting seat to fix the throw-away tip, thereby minimizing the number of parts. And the structure of the holder can be simplified, which is desirable in that the tool cost can be reduced as a result.

また、チップのホルダへの固定はねじ止めだけでなくクランプ部材を用いても構わないが、その場合、前記ホルダ先端側上面に前記凹部と係合するクランプ突出部を具備するクランプ部材が備えられているとともに、前記チップ取付座に装着された状態のスローアウェイチップ上面側に位置している凹部が前記クランプ突出部と係合していることが、スローアウェイチップをチップ取付座の拘束面に確実に押え付けることが出来る点で望ましい。   Further, the chip may be fixed to the holder not only by screwing but also by using a clamp member. In this case, a clamp member having a clamp protrusion that engages with the recess is provided on the upper surface of the holder tip side. And the recess located on the upper surface side of the throw-away tip attached to the tip mounting seat is engaged with the clamp protrusion, so that the throw-away tip is used as a restraining surface of the tip mounting seat. This is desirable because it can be securely pressed.

さらに、前記チップ取付座に装着された状態のスローアウェイチップ上面側に位置している凹部と係合している前記クランプ突出部の上面が、前記チップ取付座に装着状態のスローアウェイチップ上面を構成する前記外周側面と同一高さとなることが、切刃から排出された切屑がクランプ部材にあたることなくスムーズに排出される点で望ましい。   Further, the upper surface of the clamp protrusion engaged with the recess located on the upper surface side of the throw-away tip mounted on the chip mounting seat is the upper surface of the throw-away tip mounted on the chip mounting seat. It is desirable that the height be the same as that of the outer peripheral side surface that constitutes, because the chips discharged from the cutting blade can be discharged smoothly without hitting the clamp member.

上述の本発明のスローアウェイ式切削工具によれば、スローアウェイチップ側に主面の略三角形の各辺部に続く外周側面に前記すくい面から離間する凹部を設けるとともに、ホルダ側にスローアウェイチップ装着時の切刃のあご下部に位置する先端側に前記スローアウェイチップの凹部と係合する形状の先端突出部を設けて、両者が係合した状態でスローアウェイチップをホルダに装着した構成であることから、ホルダ先端の先端突出部が従来のホルダにおける取付座面下部（あご下部）に比べて肉厚が大きくなり、それに伴いホルダ先端の強度を高められ、チップ取付座の変形が抑制されて長期間にわたって強固な拘束力を維持できる結果、長寿命な工具を得ることができる。 According to the above-described throw-away cutting tool of the present invention, the throw-away tip is provided on the outer peripheral side surface following each side of the substantially triangular shape of the main surface on the throw-away tip side, and the throw-away tip is provided on the holder side. The tip is located at the tip of the cutting blade at the bottom of the jaw when mounted, and the tip projection is shaped to engage with the recess of the throw-away tip, and the throw-away tip is mounted on the holder with both engaged. As a result, the tip protrusion at the tip of the holder is thicker than the lower part of the mounting seat surface (chin lower part) in the conventional holder, which increases the strength of the holder tip and suppresses deformation of the chip mounting seat. As a result of maintaining a strong restraining force over a long period of time, a tool having a long life can be obtained.

以下、本発明の実施形態を添付図面により説明する。   Embodiments of the present invention will be described below with reference to the accompanying drawings.

図１乃至図５は、本発明の実施形態を示すものであり、図１は本実施形態によるスローアウェイ式切削工具の（ａ）先端部斜視図、（ｂ）先端部側面図、図２は図１（ａ）の分解斜視図、図３は本実施形態例によるスローアウェイチップの（ａ）斜視図、（ｂ）平面図、（ｃ）側面図（（ｂ）のＸ矢視図）、図４は他の実施形態によるスローアウェイチップの斜視図、図５は他の実施形態によるスローアウェイ式切削工具の（ａ）先端部斜視図、（ｂ）先端部側面図である。   FIGS. 1 to 5 show an embodiment of the present invention. FIG. 1 is a perspective view of (a) a tip portion of a throw-away cutting tool according to this embodiment, (b) a side view of the tip portion, and FIG. FIG. 1A is an exploded perspective view, FIG. 3 is a perspective view of a throw-away tip according to the present embodiment example, FIG. 1B is a plan view, FIG. 3C is a side view (a view of arrow X in FIG. 1B), FIG. 4 is a perspective view of a throw-away tip according to another embodiment. FIG. 5 is a perspective view of a tip-away cutting tool according to another embodiment.

図３において、本実施形態によるスローアウェイチップ（以下、単にチップと略す。）１は略三角形平板状をなしており、互いに平行な２つの主面２、２´と、厚み方向には外周側面７とを備えてなり、該外周側面７の各コーナー部近傍にはすくい面４と前逃げ面５とが形成され、該すくい面４と前逃げ面５との交差稜線に切刃６が形成されているとともに、前記主面２、２´の略三角形の各辺部に続く前記外周側面７には厚み方向に溝を形成するように凹部８が設けられている。   In FIG. 3, a throw-away tip (hereinafter simply abbreviated as a tip) 1 according to the present embodiment has a substantially triangular flat plate shape, two main surfaces 2 and 2 'parallel to each other, and an outer peripheral side surface in the thickness direction. 7, a rake face 4 and a front flank 5 are formed in the vicinity of each corner portion of the outer peripheral side surface 7, and a cutting edge 6 is formed at the intersecting ridge line between the rake face 4 and the front flank 5. In addition, a concave portion 8 is provided on the outer peripheral side surface 7 following each of the substantially triangular side portions of the main surfaces 2 and 2 'so as to form a groove in the thickness direction.

このチップ１が、図１、図２に示すように、ホルダ１０の、チップ１装着時に切刃６のあご下部に位置する先端側に前記チップ１の前記凹部８と係合する先端突出部１３を、後端側に前記先端突出部１３と係合する凹部８形成面とは別の外周側面７がチップ１側の拘束面として当接される後端壁面１７を備えたチップ取付座１１に装着される。このとき、切刃６のあご下部に位置する凹部８がホルダ本体１０のチップ取付座１１の先端突出部１３と係合している構成により、チップ取付座１１を構成するホルダ先端側の切刃位置のあご下部における肉厚が大きくなり、それに伴いホルダ強度を高められ、チップ取付座１１の変形が抑制されて長寿命な工具を得ることができる。   As shown in FIGS. 1 and 2, the tip 1 has a tip protruding portion 13 that engages with the concave portion 8 of the tip 1 on the tip side of the holder 10 that is located at the lower jaw of the cutting blade 6 when the tip 1 is mounted. The tip mounting seat 11 is provided with a rear end wall surface 17 on the rear end side of which the outer peripheral side surface 7 different from the surface on which the concave portion 8 is engaged is engaged as a restraint surface on the tip 1 side. Installed. At this time, the cutting edge on the tip side of the holder constituting the tip mounting seat 11 is configured such that the concave portion 8 located at the lower jaw of the cutting blade 6 is engaged with the tip protruding portion 13 of the tip mounting seat 11 of the holder body 10. The thickness at the lower jaw of the position is increased, the holder strength is increased accordingly, and the deformation of the chip mounting seat 11 is suppressed, so that a long-life tool can be obtained.

また、図１（ｂ）に示すように、前記凹部８と前記チップ取付座１１の先端突出部１３との係合面は、ホルダ底面１８と平行な平面で構成されていることが、チップ１の座りを安定させるとともに切刃高さの位置精度を高めることができる点で好適である。   Further, as shown in FIG. 1B, the engagement surface between the concave portion 8 and the tip protruding portion 13 of the chip mounting seat 11 is constituted by a plane parallel to the holder bottom surface 18. This is preferable in that it can stabilize the sitting position and can increase the positional accuracy of the cutting edge height.

さらに、図３に示すように、主面２、２´の中央間には、チップ１をホルダ１０にねじ止めするための貫通穴が貫通しており、ねじ部材１２を前記貫通穴に挿入し前記チップ取付座１１へ締込んで前記チップ１が固定されることで、部品点数を最小限にできるとともにホルダ１０の構造も簡素化できるので、結果として工具コストを抑えることができる。   Furthermore, as shown in FIG. 3, a through hole for screwing the chip 1 to the holder 10 passes between the centers of the main surfaces 2 and 2 ', and the screw member 12 is inserted into the through hole. Since the chip 1 is fixed by being fastened to the chip mounting seat 11, the number of parts can be minimized and the structure of the holder 10 can be simplified. As a result, the tool cost can be suppressed.

また、図５には、他の実施形態による切削工具を示しており、ホルダ１０の上面にチップクランプ部材１４が備えられていて、チップ１のホルダ１０装着時の上面側の凹部８が前記クランプ部材１４のクランプ突出部１５と係合している。この実施形態においては、ねじ部材１２を使用しないでチップ１をホルダ１０に固定するので、ねじ止め式のようにチップ１の着脱時にねじ部材１２を完全に取り外さないといけないというような煩雑さがなく、クランプ部材１４を多少緩めるだけでチップ１の着脱が可能であるので、操作性に優れるという利点がある。また、チップ１に貫通穴を設ける必要がないので、チップ１自体の強度を高めることができる。   Further, FIG. 5 shows a cutting tool according to another embodiment, in which a chip clamp member 14 is provided on the upper surface of the holder 10, and the concave portion 8 on the upper surface side when the holder 10 of the chip 1 is mounted is the clamp. It is engaged with the clamp protrusion 15 of the member 14. In this embodiment, since the chip 1 is fixed to the holder 10 without using the screw member 12, there is a trouble that the screw member 12 must be completely removed when the chip 1 is attached or detached as in the case of a screwing type. In addition, since the chip 1 can be attached and detached only by slightly loosening the clamp member 14, there is an advantage that the operability is excellent. Moreover, since it is not necessary to provide a through hole in the chip 1, the strength of the chip 1 itself can be increased.

さらに、凹部８と係合しているクランプ部材１４のクランプ突出部１５の上面１６を、ホルダ１０に装着された状態のチップ１上面を構成している外周側面７と同一高さとなるように構成することが、切削によって形成された切屑の流れをクランプ部材１４が阻害することなくスムーズに排出できるという点で好適である。   Further, the upper surface 16 of the clamp protrusion 15 of the clamp member 14 engaged with the recess 8 is configured to be the same height as the outer peripheral side surface 7 that constitutes the upper surface of the chip 1 mounted on the holder 10. It is preferable that the chip flow formed by cutting can be smoothly discharged without being obstructed by the clamp member 14.

なお、図５におけるクランプ部材１４を用いた実施形態として穴なしのチップ１ｂを用いたが、その代わりに穴付きのチップ１ａを用いることもできる。この場合、上方からのクランプ部材１４による拘束に加え、側方からのねじによる拘束が可能となるのでチップ１の拘束力を強化するという点で優れた構成となる。   In addition, although chip | tip 1b without a hole was used as embodiment using the clamp member 14 in FIG. 5, the chip | tip 1a with a hole can also be used instead. In this case, in addition to restraint by the clamp member 14 from above, restraint by screws from the side is possible, so that the construction is excellent in that the restraining force of the chip 1 is enhanced.

なお、本発明によるスローアウェイ式切削工具として、ここまで溝入れ加工用工具の形態について述べてきたが、図４に示したようなねじ切り加工用チップを用いて、ねじ切り加工用工具として使用することも可能である。   In addition, although the form of the grooving tool has been described so far as the throw-away cutting tool according to the present invention, it should be used as a threading tool by using the threading tip as shown in FIG. Is also possible.

以上、本発明の実施形態を例示したが、本発明は前述した実施形態に限定されるものではなく、発明の目的を逸脱しない限り任意のものとすることができることはいうまでもない。   As mentioned above, although embodiment of this invention was illustrated, this invention is not limited to embodiment mentioned above, It cannot be overemphasized that it can be made arbitrary, unless it deviates from the objective of invention.

本実施例によるスローアウェイ式切削工具の、（ａ）先端部斜視図、（ｂ）先端部側面図である。It is (a) front-end | tip part perspective view, (b) front-end | tip part side view of the throwaway type cutting tool by a present Example. 図１（ａ）の分解斜視図である。It is a disassembled perspective view of Fig.1 (a). 本実施例によるスローアウェイチップの、（ａ）斜視図、（ｂ）平面図、（ｃ）側面図（（ｂ）のＸ矢視図）である。It is (a) perspective view, (b) top view, (c) side view (X arrow view of (b)) of the throw away tip by a present Example. 他の実施例によるスローアウェイチップの斜視図である。It is a perspective view of the throw away tip by other examples. 他の実施例によるスローアウェイ式切削工具の（ａ）先端部斜視図、（ｂ）先端部側面図である。It is (a) front-end | tip part perspective view, (b) front-end | tip part side view of the throw-away type cutting tool by another Example. 従来のねじ止め式のスローアウェイ式切削工具であり、（ａ）先端部斜視図、（ｂ）先端部側面図である。It is the conventional screwing type throwaway type cutting tool, (a) tip part perspective view, (b) tip part side view. 従来のトップクランプ式のスローアウェイ式切削工具であり、その先端部斜視図である。It is the conventional top clamp type throw-away type cutting tool, and is a perspective view of the tip. チップ取付部を構成するホルダ先端側の取付座面下部の変形状態を示すホルダ側面図である。It is a holder side view which shows the deformation | transformation state of the attachment seating surface lower part of the holder front end side which comprises a chip | tip attachment part.

符号の説明Explanation of symbols

１ スローアウェイチップ（チップ）
１ａ スローアウェイチップ（穴付き）
１ｂ スローアウェイチップ（穴なし）
１ｃ スローアウェイチップ（ねじ切り用）
２、２´ 主面
３、３´ 横逃げ面
４ すくい面
５ 前逃げ面
６ 切刃
７ 外周側面
８ 凹部
９ 切削工具
１０ ホルダ
１１ チップ取付座
１２ ねじ部材
１３ 先端突出部
１４ クランプ部材
１５ クランプ突出部
１６ クランプ突出部の上面
１７ 後端壁面
１８ ホルダ底面
２１ａ 従来のスローアウェイチップ（穴付き）
２１ｂ 従来のスローアウェイチップ（穴なし）
３０ 従来のホルダ
３３ 従来ホルダのチップ取付座のあご下部
３４ 従来のクランプ部材 1 Throw away tip (chip)
1a Throw away tip (with hole)
1b Throw away tip (no hole)
1c Throw away insert (for threading)
2, 2 'Main surface 3, 3' Side clearance surface 4 Rake surface 5 Front clearance surface 6 Cutting edge 7 Outer peripheral side surface 8 Recess 9 Cutting tool 10 Holder 11 Tip mounting seat 12 Screw member 13 Tip protrusion 14 Clamp member 15 Clamp protrusion Part 16 Upper surface 17 of clamp protrusion part Rear end wall surface 18 Holder bottom surface 21a Conventional throw-away tip (with hole)
21b Conventional throwaway tip (no hole)
30 Conventional holder 33 Chin lower part 34 of chip mounting seat of conventional holder Conventional clamp member

Claims (5)

略三角形の２つの主面と厚み方向に外周側面とを備えた略平板状をなし、前記外周側面の各コーナー部近傍にはすくい面、前逃げ面、および該すくい面と前逃げ面との交差稜線に切刃が形成されてなるとともに、前記主面の略三角形の各辺部に続く前記外周側面には前記すくい面から離間する前記凹部が設けられているスローアウェイチップが、
ホルダの、先端側に前記スローアウェイチップの凹部と係合する先端突出部を、後端側に前記先端突出部と係合する凹部形成面とは別の外周側面が当接される後端壁面を備えたチップ取付座に装着されてなることを特徴とするスローアウェイ式切削工具。 A substantially flat plate having two substantially triangular main surfaces and an outer peripheral side surface in the thickness direction is formed. In the vicinity of each corner portion of the outer peripheral side surface, there are a rake face, a front flank face, and the rake face and the front flank face. A throwaway tip is provided with a cutting edge formed on the intersecting ridgeline, and the outer peripheral side surface following each side of the substantially triangular shape of the main surface is provided with the concave portion spaced from the rake face .
The rear end wall surface of the holder that has a front end protruding portion that engages with the concave portion of the throw-away tip on the front end side, and a rear end side that is in contact with an outer peripheral side surface that is different from the concave portion forming surface that engages with the front end protruding portion. A throw-away type cutting tool, which is mounted on a tip mounting seat provided with 前記凹部と前記チップ取付座の先端突出部との係合面はホルダ底面と平行な平面で構成されていることを特徴とする請求項１記載のスローアウェイ式切削工具。   2. The throw-away cutting tool according to claim 1, wherein an engagement surface between the recess and the tip protruding portion of the tip mounting seat is a plane parallel to the bottom surface of the holder. 前記主面の中央間を貫通する貫通穴を備えるとともに、ねじ部材を前記貫通穴に挿入し前記チップ取付座へ締込んで前記スローアウェイチップが固定されることを特徴とする請求項１または２に記載のスローアウェイ式切削工具。   3. A through-hole penetrating between the centers of the main surfaces is provided, and a screw member is inserted into the through-hole and tightened into the tip mounting seat to fix the throw-away tip. The throw-away type cutting tool described in 1. 前記ホルダ先端側上面に前記凹部と係合するクランプ突出部を具備するクランプ部材が備えられているとともに、前記チップ取付座に装着された状態のスローアウェイチップ上面側に位置している凹部が前記クランプ突出部と係合していることを特徴とする請求項１乃至３のいずれか記載のスローアウェイ式切削工具。   A clamp member having a clamp protrusion that engages with the recess is provided on the top surface of the holder tip side, and a recess positioned on the upper surface side of the throw-away tip in a state of being attached to the tip mounting seat. The throw-away cutting tool according to any one of claims 1 to 3, wherein the throw-away cutting tool is engaged with a clamp protrusion. 前記チップ取付座に装着された状態のスローアウェイチップ上面側に位置している凹部と係合している前記クランプ突出部の上面が、前記チップ取付座に装着された状態のスローアウェイチップ上面を構成する前記外周側面と同一高さとなることを特徴とする請求項４記載のスローアウェイ式切削工具。   The upper surface of the clamp protrusion engaging with the recess located on the upper surface side of the throw-away tip attached to the tip attachment seat is the upper surface of the throw-away tip attached to the tip attachment seat. The throw-away cutting tool according to claim 4, wherein the throw-away cutting tool has the same height as the outer peripheral side surface.
JP2003304793A 2003-08-28 2003-08-28 Throw-away cutting tool Expired - Fee Related JP4383129B2 (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Publication Number Publication Date
JP2005074531A JP2005074531A (en) 2005-03-24
JP4383129B2 true JP4383129B2 (en) 2009-12-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9421614B2 (en) 2012-05-15 2016-08-23 Vargus Ltd. Cutting tool, cutting insert and tool holder

Families Citing this family (4)

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EP2722122B1 (en) * 2011-06-17 2020-10-14 Tungaloy Corporation Cutting insert and rotary cutting tool
US9216463B2 (en) * 2013-01-03 2015-12-22 Iscar, Ltd. Cutting tool and cutting insert having exactly three cutting portions therefor
US10252341B2 (en) * 2014-12-17 2019-04-09 Kyocera Corporation Cutting insert, cutting tool, and method for manufacturing machined product
JP6937987B1 (en) 2021-03-23 2021-09-22 イスカル リミテッド Cutting insert

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9421614B2 (en) 2012-05-15 2016-08-23 Vargus Ltd. Cutting tool, cutting insert and tool holder

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