JP2005212042A - Holder for machining inside diameter, and cutting tool using the same - Google Patents

Holder for machining inside diameter, and cutting tool using the same Download PDF

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JP2005212042A
JP2005212042A JP2004022278A JP2004022278A JP2005212042A JP 2005212042 A JP2005212042 A JP 2005212042A JP 2004022278 A JP2004022278 A JP 2004022278A JP 2004022278 A JP2004022278 A JP 2004022278A JP 2005212042 A JP2005212042 A JP 2005212042A
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holder
main body
clamp
slit
tip
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Yoji Kobayashi
洋司 小林
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Kyocera Corp
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Kyocera Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a holder for machining an inside diameter which is highly rigid and stable in machining, and further to provide a cutting tool using the same. <P>SOLUTION: The holder 2 for machining the inside diameter comprises a body 3 having an approximately rod-like shape, a tip mounting portion 4 formed at one end side of the body 3, a slit 5 formed so as to tilt from the tip mounting portion 4 above the other end side of the body 3, a clamp 6 which corresponds to the upper side of the slit 5, and also has an almost constant thickness t, and is formed so as to be integrated with the body 3. A cutting tool 1 is formed by mounting a throwaway tip 11 on the holder 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、円筒状の被削材の内周面を加工するための内径加工用ホルダおよびそれを用いた切削工具に関する。   The present invention relates to an inner diameter processing holder for processing an inner peripheral surface of a cylindrical work material and a cutting tool using the same.

従来、円筒状の被削材の内周面に溝入れ加工するためのスローアウェイ式切削工具として、例えば特許文献１に開示されているような、スローアウェイチップの上面を押え金でクランプし、切刃部を工具ホルダの側方に突き出し載置した工具が知られている。しかし、この特許文献１で開示されたような形状では、すくい面後方のスローアウェイチップ上方に押え金が配設されていることにより、生成された切屑が押え金に当たって押え金の損傷を早めたり、または切屑が押え金にからみつき、そのまま工具ホルダ先端部に堆積してしまうと、切屑が円筒状の被削材の内周加工面を傷つけたり、スローアウェイチップを破損させるなどの問題があった。   Conventionally, as a throw-away cutting tool for grooving the inner peripheral surface of a cylindrical work material, for example, as disclosed in Patent Document 1, the upper surface of the throw-away tip is clamped with a presser foot, A tool is known in which a cutting edge portion is protruded and placed on the side of a tool holder. However, in the shape as disclosed in Patent Document 1, since the presser foot is disposed above the throw-away tip behind the rake face, the generated chips hit the presser foot to accelerate the presser foot damage. If the chips are entangled with the presser foot and accumulate on the tip of the tool holder, the chips may damage the inner peripheral surface of the cylindrical work piece or damage the throw-away tip. .

一方、押え金を用いない溝入れ工具として、例えば特許文献２に開示されているような、工具ホルダの先端部にスリットを設け、工具ホルダと一体的に形成されたクランプ部をクランプねじで締め込み、工具ホルダの弾性変形を利用してスローアウェイチップを装着、固定する構成が広く知られている。   On the other hand, as a grooving tool that does not use a presser foot, for example, as disclosed in Patent Document 2, a slit is provided at the tip of the tool holder, and the clamp part formed integrally with the tool holder is tightened with a clamp screw. In addition, a configuration in which a throw-away tip is mounted and fixed using elastic deformation of a tool holder is widely known.

しかしながら、内径加工用工具で上述したようなスリットを備える構成にする場合、スローアウェイチップの切刃高さを被削材内径の中心近傍に合わせる、すなわち切刃位置が工具ホルダの軸心高さ近傍にくるようにスローアウェイチップを配置する必要があるが、その際ホルダ厚みに制約があるためスリット下部のホルダ下顎部厚みが薄くなり、その結果としてホルダの剛性が低下し、切削中にびびりが発生するなどの問題が生じる。そこで内径加工用工具で工具ホルダ先端部にスリットを備えた構成とする場合は、スリットを工具ホルダ後端側上方に向かうに連れて傾斜させることで、ホルダ下顎部の肉厚を稼ぎ、ホルダ先端部を強化した形状で実用化されている。
実開平４−１１５５０２号公報 実開平４−１１２７０８号公報 However, when the inner diameter machining tool is provided with the slit as described above, the cutting edge height of the throw-away tip is adjusted to the vicinity of the center of the workpiece inner diameter, that is, the cutting edge position is the axial height of the tool holder. Although it is necessary to place the throw-away tip so that it is close to the holder, there is a restriction on the holder thickness, so the thickness of the lower jaw of the holder at the bottom of the slit is reduced, resulting in reduced rigidity of the holder and chatter during cutting. Problems occur. Therefore, when the inner diameter machining tool is configured to have a slit at the tip of the tool holder, the thickness of the holder lower jaw is increased by inclining the slit as it goes upward on the rear end side of the tool holder. It has been put to practical use in a shape with reinforced parts.
Japanese Utility Model Publication No. 4-115502 Japanese Utility Model Publication No. 4-112708

しかしながら、上記特許文献２に記載されるような構成では、同公報の図１等に記載されるように工具ホルダ上面とスリットとの間隔、すなわちクランプ部の肉厚が必然的にスリットの付け根部分において最も小さくなるため、スローアウェイチップの着脱を行う場合に、工具ホルダ先端部の弾性変形に伴い発生する応力が前記付け根部分に集中する。したがってスローアウェイチップの着脱の繰り返しで金属疲労がおこり、その結果当該部分を起点とするクラックが発生し、最終的にはクランプ部が折損してしまうという問題が生じていた。   However, in the configuration described in Patent Document 2, the gap between the upper surface of the tool holder and the slit, that is, the thickness of the clamp portion is necessarily the base portion of the slit as described in FIG. Therefore, when the throwaway tip is attached and detached, the stress generated with the elastic deformation of the tip end of the tool holder is concentrated on the base portion. Accordingly, there has been a problem that metal fatigue occurs due to repeated attachment and detachment of the throw-away tip, and as a result, a crack starting from that portion occurs, and the clamp portion eventually breaks.

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、円筒状の被削材の内周面に溝入れ加工するためのスローアウェイ式切削工具において、高剛性で加工安定性の高い内径溝入れ加工用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 is a throwaway cutting tool for grooving the inner peripheral surface of a cylindrical work material. An object of the present invention is to provide an internal grooving tool having high stability.

前記課題を解決するため、請求項１の内径加工用ホルダは、略棒状の本体部と、該本体部の一端側に外周方向に向かって開口するように配設されたチップ取付部と、該チップ取付部から前記本体部後端側上方に向かって斜設されたスリットと、該スリットの上部に位置して厚みが略一定にて前記本体部と一体的に配設されているクランプ部と、前記スリットの下部に位置して前記本体部と一体的に形成された下顎部とを具備し、前記下顎のつけ根部分の厚みが該下顎端部の先端部の厚みよりも厚く形成されていることを特徴としている。   In order to solve the above-mentioned problem, an inner diameter processing holder according to claim 1 includes a substantially rod-shaped main body portion, a tip mounting portion disposed on one end side of the main body portion so as to open toward the outer periphery, A slit obliquely provided upward from the tip mounting portion toward the rear end side of the main body portion; and a clamp portion that is located above the slit and has a substantially constant thickness and is integrally disposed with the main body portion. A lower jaw formed integrally with the main body at the lower portion of the slit, and the thickness of the base of the lower jaw is thicker than the thickness of the distal end of the lower jaw. It is characterized by that.

かかる構成によれば、スリット下部に相当するホルダ下顎部の肉厚がホルダ後端側へ向かうにつれて増加していることでホルダ剛性が高められるとともに、クランプ時に弾性変形するクランプ部の厚みが略一定であることにより、弾性変形に伴い発生する応力がクランプ部の付け根部のみへ集中することなくクランプ部前方へも分散されるので、弾性変形の応力による金属疲労が部分的に早く進行することなく破損しにくい長寿命な工具とすることができる。   According to such a configuration, the thickness of the lower part of the holder corresponding to the lower part of the slit increases toward the rear end of the holder, so that the rigidity of the holder is increased and the thickness of the clamp part that is elastically deformed during clamping is substantially constant. As a result, the stress caused by the elastic deformation is distributed to the front of the clamp part without concentrating only on the base part of the clamp part, so that the metal fatigue due to the stress of the elastic deformation does not progress partly early. It can be a long-life tool that is not easily damaged.

また、請求項２の内径加工用ホルダは、前記クランプ部上面と該クランプ部上面に連なる工具ホルダ他の上面とが滑らかに繋がれていることを特徴としている。   Further, the inner diameter processing holder according to claim 2 is characterized in that the upper surface of the clamp portion and the upper surface of the tool holder or the like connected to the upper surface of the clamp portion are smoothly connected.

かかる構成によれば、クランプ部の付け根部における応力集中をより緩和することができ、また、加工時に発生しやすいエッジやバリを限りなく除去し、弾性変形に伴い発生する応力が集中しやすい箇所を予め排除することにより、結果としてクランプ部のつけ根部におけるクラックの発生を抑制することができる。   According to such a configuration, stress concentration at the base of the clamp portion can be further relaxed, and edges and burrs that tend to occur during processing can be removed as much as possible, and stresses generated due to elastic deformation are likely to concentrate. As a result, the occurrence of cracks at the base of the clamp portion can be suppressed.

また、請求項３の内径加工用ホルダは、前記クランプ部上面において、前記本体部との境界から先端側に向かって幅が一定の弾性変形部を形成したことを特徴としている。   The inner diameter processing holder according to claim 3 is characterized in that an elastic deformation portion having a constant width is formed on the upper surface of the clamp portion from the boundary with the main body portion toward the tip side.

かかる構成によれば、前記クランプ部の付け根部への応力集中をより分散して弾性変形部全体へ分散されるので、破損しにくい長寿命な工具とすることができる。   According to such a configuration, the stress concentration at the base of the clamp part is further dispersed and distributed to the entire elastically deformable part, so that a long-life tool that is not easily damaged can be obtained.

また、本発明による切削工具は、前記内径加工用ホルダの前記チップ取付部に切刃が外周方向に突出するようにスローアウェイチップを装着し、被削材の内周面に切刃を当てて内径加工することを特徴としている。   In the cutting tool according to the present invention, a throw-away tip is attached to the tip mounting portion of the inner diameter machining holder so that the cutting blade protrudes in the outer peripheral direction, and the cutting blade is applied to the inner peripheral surface of the work material. It is characterized by machining the inner diameter.

かかる構成によれば、スリット下部に相当するホルダ下顎部の肉厚がホルダ後端側へ向かうにつれて増加していることでホルダ剛性が高められ、切削中におけるびびりの発生が抑制されるとともに、弾性変形に伴い発生する応力が特定箇所へ集中することなく広範囲に分散されるので、スローアウェイチップの着脱を繰り返し行っても破損しにくい、長寿命な切削工具とすることができる。   According to this configuration, the thickness of the lower part of the holder corresponding to the lower part of the slit increases as it goes toward the rear end of the holder, so that the rigidity of the holder is increased, the occurrence of chatter during cutting is suppressed, and elasticity Since the stress generated with the deformation is dispersed over a wide range without concentrating on a specific location, it is possible to provide a long-life cutting tool that is not easily damaged even when the throwaway tip is repeatedly attached and detached.

本発明の内径加工用ホルダによれば、工具ホルダ先端部のチップ取付部にスローアウェイチップを装着してなる内径溝入れ加工用工具において、前記チップ取付部から前記工具ホルダ後端側上方に向かって傾斜するスリットを具備するとともに、該スリットの上部分に相当するクランプ部の厚みが一定平行あるいは工具ホルダ先端に向かうにつれてクランプ部の厚みが小さくなるような斜面である構成としたことにより、スリット下部に相当するホルダ下顎部の肉厚がホルダ後端側へ向かうにつれて増加していることでホルダ剛性が高められるとともに、クランプ時に弾性変形するスリット上部のクランプ部の厚みが略一定であることにより、弾性変形に伴い発生する応力がクランプ部の付け根部のみへ集中することなくクランプ部前方へ分散されるので、破損しにくい長寿命な工具とすることができる。   According to the inner diameter machining holder of the present invention, in an inner diameter grooving tool in which a throw-away tip is attached to the tip attachment portion at the tip of the tool holder, the tip attachment portion is directed upward toward the rear end side of the tool holder. And a slit that is inclined so that the thickness of the clamp part corresponding to the upper part of the slit is constant parallel or the thickness of the clamp part becomes smaller toward the tip of the tool holder. The thickness of the lower jaw part of the holder corresponding to the lower part increases as it goes toward the rear end of the holder, so that the rigidity of the holder is enhanced and the thickness of the clamp part at the upper part of the slit that is elastically deformed during clamping is substantially constant. The stress generated by elastic deformation is distributed to the front of the clamp without concentrating only on the base of the clamp. Since the can to not easily damaged long life tool.

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は本発明の第一の実施形態として内径溝入れ加工用切削工具の分解斜視図、図２は図１に示した切削工具の要部平面図、図3は図２の側面図、図４は本発明の第二の実施形態による内径溝入れ加工用切削工具の要部平面図、図５は図４の側面図である。   1 to 5 show an embodiment of the present invention. FIG. 1 is an exploded perspective view of an internal grooving cutting tool as a first embodiment of the present invention, and FIG. 2 is shown in FIG. FIG. 3 is a side view of FIG. 2, FIG. 4 is a plan view of the main part of a cutting tool for internal grooving according to the second embodiment of the present invention, and FIG. 5 is a side view of FIG. It is.

図１において、本発明の一実施形態による内径溝入れ加工用切削工具（以下、工具と略す。）１は、右勝手の内径加工用ホルダ（以下、ホルダと略す。）２先端部の、上下にクランプ面を具備したチップ取付部４に、スローアウェイチップ（以下、チップと略す。）１１の前切刃１２がホルダ２の側方（外周方向）に突出するように（図２参照）装着され挟持固定される構成となっている。ここで図３に示すように、チップ取付座４からホルダ２の後端側上方にかけて傾斜するスリット５が形成されており、該スリット５の上部に位置するクランプ部上面７をクランプねじ１３で押圧し弾性変形させることによって、チップ１１がチップ取付座４に挟持固定される。ここで、スリット５をホルダ２の後端側上方にかけて傾斜させているのは、スリット５の付け根側のホルダ２の下顎部厚みを増加させることによってホルダ２の剛性を高め、切削中におけるびびりの発生を抑制するためである。   In FIG. 1, an internal grooving cutting tool (hereinafter abbreviated as a tool) 1 according to an embodiment of the present invention is a right-handed internal diameter machining holder (hereinafter abbreviated as a holder) 2 at the top and bottom of the tip. Attaching to the tip mounting portion 4 having a clamp surface on the front end 12 of the throw-away tip (hereinafter abbreviated as “tip”) 11 so as to protrude to the side (outer peripheral direction) of the holder 2 (see FIG. 2). It is configured to be clamped and fixed. Here, as shown in FIG. 3, a slit 5 is formed so as to be inclined from the tip mounting seat 4 to the upper side of the rear end side of the holder 2, and the upper surface 7 of the clamp portion positioned above the slit 5 is pressed by the clamp screw 13. Then, the tip 11 is clamped and fixed to the tip mounting seat 4 by being elastically deformed. Here, the inclination of the slit 5 toward the upper rear end side of the holder 2 is to increase the rigidity of the holder 2 by increasing the thickness of the lower jaw portion of the holder 2 on the base side of the slit 5, thereby reducing chatter during cutting. This is to suppress the occurrence.

また、スリット５の上部分に相当するクランプ部６は、該クランプ部上面７とスリット５との間で定義されるクランプ部６の厚みｔが略一定、すなわちクランプ部上面７とスリット５の上面とが略平行であるように形成されている。ここで、チップ１１をチップ取付部４に装着し、クランプねじ１３を締め込みクランプ部６を押し下げる際に、該クランプ部６と本体部３とのつけ根部（接続部）Ａが最も弾性変形しやすいが、クランプ部６の厚みｔが略一定であることにより、特定箇所、すなわち前記接続部Ａだけに応力が集中することなく、クランプ部６前方へ応力が分散するので、弾性変形の応力による金属疲労や切削加工中の微振動による金属疲労などが部分的に早く進行することなく当該部分からクラックが発生することを抑制し、結果的にホルダの耐久性を向上させることができる。   The clamp portion 6 corresponding to the upper portion of the slit 5 has a substantially constant thickness t of the clamp portion 6 defined between the clamp portion upper surface 7 and the slit 5, that is, the upper surface of the clamp portion upper surface 7 and the slit 5. Are substantially parallel to each other. Here, when the tip 11 is mounted on the tip mounting portion 4, the clamp screw 13 is tightened and the clamp portion 6 is pushed down, the base portion (connecting portion) A between the clamp portion 6 and the main body portion 3 is most elastically deformed. Although the thickness t of the clamp portion 6 is substantially constant, the stress is distributed to the front of the clamp portion 6 without being concentrated only at a specific location, that is, the connection portion A. It is possible to suppress the occurrence of cracks from the metal fatigue or the metal fatigue caused by micro-vibration during the cutting process without progressing quickly, and as a result, the durability of the holder can be improved.

さらに、図３に示すように前記クランプ部上面７とこれに連なる本体部上面８とが滑らかな曲面９で繋がれた構成とすることにより、クランプ部６の接続部Ａにおける応力集中を解消でき、特に加工時に発生するエッジやバリを限りなく除去し、弾性変形に伴い発生する応力が集中しやすい箇所を予め排除することにより、結果として弾性変形量が比較的大きなクランプ部６の接続部Ａ近傍を起点とするクラックの発生を抑制することができる。ここで前記曲面９の構成としては、その断面が、スリット５の付け根のＲ部の半径中心１４を中心として、クランプ部上面７とこれに連なる本体部上面８に互いに接するような曲面であることが望ましい。このような構成にすれば、弾性変形の最も大きなクランプ部６の接続部Ａ近傍において、クランプ部６の厚みｔを一定にすることができるので、応力集中を防ぎ、より広範囲に応力を分散させることができるので、結果として当該領域におけるクラックの発生を抑制することができる。なお、曲面９はクランプ部上面７とこれに連なる本体部上面８とが滑らかに接続されていればよく、曲面の平面を組み合わせたものであってもよい。   Furthermore, as shown in FIG. 3, stress concentration at the connection portion A of the clamp portion 6 can be eliminated by adopting a configuration in which the upper surface 7 of the clamp portion and the upper surface 8 of the main body portion connected to the clamp portion are connected by a smooth curved surface 9. In particular, edges and burrs that occur during processing are removed as much as possible, and locations where stress generated due to elastic deformation is likely to concentrate are eliminated in advance, resulting in the connection portion A of the clamp portion 6 having a relatively large amount of elastic deformation. Generation of cracks starting from the vicinity can be suppressed. Here, as the configuration of the curved surface 9, the cross section thereof is a curved surface in contact with the upper surface 7 of the clamp portion and the upper surface 8 of the main body continuous with the center of the radius center 14 of the R portion at the base of the slit 5. Is desirable. With such a configuration, the thickness t of the clamp portion 6 can be made constant in the vicinity of the connection portion A of the clamp portion 6 having the largest elastic deformation, so that stress concentration can be prevented and stress can be distributed over a wider range. As a result, the occurrence of cracks in the region can be suppressed. The curved surface 9 only needs to be smoothly connected to the upper surface 7 of the clamp portion and the upper surface 8 of the main body portion connected thereto, and may be a combination of curved flat surfaces.

また、図４、図５に示すように、前記クランプ部６の前記本体部３との接続部Ａ近傍に、厚みが略一定の弾性変形部１０を備えることで、弾性変形に伴い発生する応力が前記クランプ部６の接続部Ａのみへ集中することなく弾性変形部１０全体へ分散されるので、破損しにくい長寿命な工具とすることができるが、さらには前記弾性変形部１０の両側面１５の形状が、前記本体部３の長手方向に対して左右対称であるとともに、前記両側面１５間の幅は前記弾性変形部１０の領域内において一定であるような構成とすることが、弾性変形部１０において該弾性変形部１０の幅方向における断面の面積が断面位置に関わらず一定であるので、弾性変形に伴い発生する応力が特定箇所へ集中することなく前記弾性変形部１０全域へ分散させる効果をさらに促進させるという点で望ましい。   Further, as shown in FIGS. 4 and 5, the stress generated due to the elastic deformation is provided by providing an elastic deformation portion 10 having a substantially constant thickness in the vicinity of the connection portion A of the clamp portion 6 to the main body portion 3. Is distributed over the entire elastic deformation part 10 without concentrating only on the connection part A of the clamp part 6, so that it is possible to obtain a long-life tool that is not easily damaged. The shape of 15 is bilaterally symmetric with respect to the longitudinal direction of the main body 3 and the width between the side surfaces 15 is constant in the region of the elastic deformation portion 10. Since the area of the cross section in the width direction of the elastic deformation portion 10 is constant regardless of the cross-sectional position in the deformation portion 10, the stress generated due to the elastic deformation is distributed over the entire elastic deformation portion 10 without concentrating on a specific location. Effect More preferable in terms of promoting.

なお、前記弾性変形部上面１６とこれに連なる本体部上面８とが滑らかな曲面９で繋がれた構成とすることによっても、クランプ部６の接続部Ａ領域におけるエッジやバリを限りなく除去し、弾性変形に伴い発生する応力が集中しやすい箇所を予め排除することにより、結果として弾性変形量が比較的大きなクランプ部６の接続部Ａ領域を起点とするクラックの発生を抑制することができることはいうまでもない。   Even when the elastic deformable portion upper surface 16 and the main body portion upper surface 8 connected to the elastic deformable portion upper surface 16 are connected by a smooth curved surface 9, edges and burrs in the connection portion A region of the clamp portion 6 can be removed as much as possible. In addition, by eliminating in advance the location where stress generated due to elastic deformation tends to concentrate, it is possible to suppress the occurrence of cracks starting from the connecting portion A region of the clamp portion 6 having a relatively large elastic deformation amount. Needless to say.

本発明の第一の実施形態による切削工具の分解斜視図である。It is a disassembled perspective view of the cutting tool by 1st embodiment of this invention. 図１の切削工具の要部平面図である。It is a principal part top view of the cutting tool of FIG. 図２の側面図である。FIG. 3 is a side view of FIG. 2. 本発明の第二の実施形態による切削工具の要部平面図である。It is a principal part top view of the cutting tool by 2nd embodiment of this invention. 図４の側面図である。FIG. 5 is a side view of FIG. 4.

符号の説明Explanation of symbols

１ （内径溝入れ加工用切削）工具
２ （内径加工用）ホルダ
３ 本体部
４ チップ取付部
５ スリット
６ クランプ部
７ クランプ部上面
８ 本体部上面
９ 曲面
１０ 弾性変形部
１１ スローアウェイチップ（チップ）
１２ 前切刃
１３ クランプねじ
１４ スリット付け根Ｒ部の半径中心
１５ 弾性変形部側面
１６ 弾性変形部上面
Ａ クランプ部と本体部との接続部
ｔ クランプ部の厚み DESCRIPTION OF SYMBOLS 1 (Cutting for internal diameter grooving) Tool 2 (For internal diameter processing) Holder 3 Body part 4 Tip attachment part 5 Slit 6 Clamp part 7 Clamp part upper surface 8 Body part upper surface 9 Curved surface 10 Elastic deformation part 11 Throw away tip (chip)
12 Front cutting edge 13 Clamp screw 14 Radius center 15 of slit root R portion Elastic deformation portion side surface 16 Elastic deformation portion upper surface A Connection portion t between clamp portion and main body portion T thickness of clamp portion

Claims (4)

略棒状の本体部と、該本体部の一端側に外周方向に向かって開口するように配設されたチップ取付部と、該チップ取付部から前記本体部後端側上方に向かって斜設されたスリットと、該スリットの上部に位置して厚みが略一定にて前記本体部と一体的に配設されているクランプ部と、前記スリットの下部に位置して前記本体部と一体的に形成された下顎部とを具備し、前記下顎のつけ根部分の厚みが該下顎端部の先端部の厚みよりも厚く形成されている内径加工用ホルダ。 A substantially rod-shaped main body part, a chip mounting part disposed so as to open toward the outer peripheral direction on one end side of the main body part, and a diagonally extending upward from the chip mounting part toward the rear end side of the main body part A slit, an upper part of the slit, a clamp part having a substantially constant thickness and being integrated with the main body part, and a lower part of the slit, integrally formed with the main body part An inner diameter machining holder, wherein a thickness of a base portion of the lower jaw is thicker than a thickness of a distal end portion of the lower jaw end portion. 前記クランプ部上面と該クランプ部上面に連なる本体部上面との境界が滑らかに繋がれていることを特徴とする請求項１記載の内径加工用ホルダ。 The inner diameter machining holder according to claim 1, wherein a boundary between the upper surface of the clamp part and the upper surface of the main body part connected to the upper surface of the clamp part is smoothly connected. 前記クランプ部上面において、前記本体部との境界から先端側に向かって幅が一定の弾性変形部を形成した請求項１または２記載の内径加工用ホルダ。 3. The inner diameter processing holder according to claim 1, wherein an elastic deformation portion having a constant width is formed on the upper surface of the clamp portion from the boundary with the main body portion toward the distal end side. 請求項１乃至３のいずれか記載の内径加工用ホルダの前記チップ取付部に切刃が外周方向に突出するようにスローアウェイチップを装着し、被削材の内周面に前記切刃を当てて内径加工する切削工具。 A throwaway tip is attached to the tip mounting portion of the inner diameter processing holder according to any one of claims 1 to 3 so that the cutting blade protrudes in an outer peripheral direction, and the cutting blade is applied to the inner peripheral surface of the work material. Cutting tool for machining inside diameter.
JP2004022278A 2004-01-29 2004-01-29 Holder for machining inside diameter, and cutting tool using the same Pending JP2005212042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004022278A JP2005212042A (en) 2004-01-29 2004-01-29 Holder for machining inside diameter, and cutting tool using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004022278A JP2005212042A (en) 2004-01-29 2004-01-29 Holder for machining inside diameter, and cutting tool using the same

Publications (1)

Publication Number Publication Date
JP2005212042A true JP2005212042A (en) 2005-08-11

Family

ID=34905671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004022278A Pending JP2005212042A (en) 2004-01-29 2004-01-29 Holder for machining inside diameter, and cutting tool using the same

Country Status (1)

Country Link
JP (1) JP2005212042A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016064466A (en) * 2014-09-25 2016-04-28 京セラ株式会社 Holder, cutting tool and method for manufacturing cut product
WO2016068120A1 (en) * 2014-10-29 2016-05-06 京セラ株式会社 Holder, cutting tool, and method for producing cut object
CN111761082A (en) * 2020-07-08 2020-10-13 陕西永乐有色金属制造股份有限公司 Novel general blind hole boring cutter pole

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016064466A (en) * 2014-09-25 2016-04-28 京セラ株式会社 Holder, cutting tool and method for manufacturing cut product
WO2016068120A1 (en) * 2014-10-29 2016-05-06 京セラ株式会社 Holder, cutting tool, and method for producing cut object
JPWO2016068120A1 (en) * 2014-10-29 2017-07-27 京セラ株式会社 HOLDER, CUTTING TOOL, AND CUTTING PRODUCTION METHOD
CN107073594A (en) * 2014-10-29 2017-08-18 京瓷株式会社 The manufacture method of knife rest, cutting element and machining thing
CN111761082A (en) * 2020-07-08 2020-10-13 陕西永乐有色金属制造股份有限公司 Novel general blind hole boring cutter pole

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