JP2765778B2 - Cutting tools - Google Patents
Cutting toolsInfo
- Publication number
- JP2765778B2 JP2765778B2 JP5549692A JP5549692A JP2765778B2 JP 2765778 B2 JP2765778 B2 JP 2765778B2 JP 5549692 A JP5549692 A JP 5549692A JP 5549692 A JP5549692 A JP 5549692A JP 2765778 B2 JP2765778 B2 JP 2765778B2
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- cutting blade
- shank
- holding portion
- tool
- 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
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、工作機械の回転主軸の
工具保持孔に嵌入、装着される装着部とその装着部から
延設された切削刃保持部から成る軸体状のシャンクおよ
び同シャンクの切削刃保持部に取着された切削刃を構造
要素として形成され、ワーク表面の切削加工を行う切削
工具に関し、特に、工作機械の主軸に装着されたとき、
装着部の軸心方向に逐次、切込みされてワーク上面を切
削加工する切削工具と異なり、少なくとも装着部の軸心
に対して横方向ないし側方向への切り込み送りを漸次に
受けながら所定の進行方向に切削作用を行うと同時に、
回転軸心回りの回転(以下C軸回転という)によって切
削刃の向きを自在に変更可能な切削工具の構造に改善
し、ワークの被加工面を切削する切削作用時の切削加工
反力を受けて切削刃が加工済みのワーク表面に損傷を与
えるのを防止すると共に、切削方向へのかじりや食い込
み等の不都合な作用の発生も防止するための弾性変形用
の支点を形成するスリットを切削刃の上述した切り込み
方向に合わせて備えることにより、ワーク表面の平削り
加工を、荒切削加工から緻密な仕上げ切削加工まで、円
滑に遂行可能な構造を有したヘールバイト形の切削工具
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaft-shaped shank comprising a mounting portion to be fitted and mounted in a tool holding hole of a rotary spindle of a machine tool and a cutting blade holding portion extending from the mounting portion. The cutting tool is formed as a structural element with the cutting blade attached to the cutting blade holder of the shank, and relates to a cutting tool that performs cutting of the work surface, especially when the cutting tool is mounted on a main shaft of a machine tool.
Unlike a cutting tool that is cut in the axial direction of the mounting portion sequentially to cut the upper surface of the work, a predetermined traveling direction while gradually receiving at least a cutting feed in a lateral direction or a side direction with respect to the axial center of the mounting portion. At the same time as the cutting action
The structure of the cutting tool can be changed freely by rotating around the rotation axis (hereinafter referred to as C-axis rotation), and it receives the cutting reaction force during the cutting action to cut the work surface of the work. In addition to preventing the cutting blade from damaging the machined work surface, the slit that forms a fulcrum for elastic deformation is also used to prevent inconvenience such as galling and biting in the cutting direction. The present invention relates to a hale bite type cutting tool having a structure capable of smoothly performing a planing process on a work surface from a rough cutting process to a fine finish cutting process by providing the cutting tool in the above-described cutting direction.
【0002】[0002]
【従来の技術】工作機械、特に、旋盤、平削り盤、形削
り盤等の工作機械における切削工具としてヘールバイト
がワーク表面の切削に用いられることは従来より周知で
あり、ヘール突切りバイト、ヘール仕上げバイト、ヘー
ルねじ切りバイト等の種類が主として周知である。この
種のヘールバイトは、切削刃に近い工具先端領域に切削
作用時のかじり又は食い込みを阻止するためにU字形に
曲げられたばね作用部を有する点を特徴とした切削工具
である。この種の従来のヘールバイトは、ワークに対す
る姿勢が加工中不変であり、加工前にヘールバイトの刃
先とワークとの位置関係をきっちり決めれば所望寸法の
加工が行えた。2. Description of the Related Art It has been well known that a hale bite is used as a cutting tool in a machine tool, especially a machine tool such as a lathe, a planing machine, and a shaping machine, for cutting a work surface. Types such as a hale finish bite, a hale threaded bite, and the like are mainly known. This type of hail bite is a cutting tool characterized by having a U-shaped bent spring action portion in the tool tip region near the cutting blade to prevent galling or biting during the cutting operation. With this type of conventional hail bite, the posture of the work with respect to the work is not changed during processing, and processing of desired dimensions can be performed if the positional relationship between the cutting edge of the hail bite and the work is determined before processing.
【0003】他方、近時、フライス系の工作機械により
平面形状の被加工面を有したワークに溝加工等の切削加
工を施す要請が有る。例えば、金型加工等では、単に、
直線溝のみならず、閉曲線に沿う溝加工等を精密に加工
する要請も有る。このような曲線溝等では、従来、切削
工具としてエンドミルを用いた加工が一般的であるが、
このエンドミル加工法では、工具自体が回転軸心を有し
て回転作動しながら切削加工を行うので、必然的に加工
溝の形状は断面が対称形状に限られる。断面が非対称形
状の溝の切削加工では、溝の断面形状に一致した形状の
切削刃をワークとの間で相対的に曲線軌跡に沿って移動
させる必要があり、刃先は単に平削り加工の場合のよう
に直線軌跡ではないために、切削工具自体に移動軌跡の
曲線化に伴って進行方向を変化させるC軸回転を付与す
る必要がある。 故に、C軸回転機能を付与しても所望
の加工寸法精度が得られ、ワークの加工断面が対称、非
対称の何れの切削加工にも適用可能であり、かつ、緻密
な仕上げ面粗度でワークに主として溝加工を遂行可能な
切削工具を提供すべく開発及び工夫をした結果、本出願
人は、C軸心を有する工作機械に装着されてワーク表面
に切削加工を施す切削工具として、弾性変形支点を切削
刃の上方域に形成するスリットを工具軸心と直交する平
面沿いに有したヘールバイト形の切削工具を構成し、か
つ、同切削工具はC軸心と一致した軸心を有するシャン
クと、そのシャンクの先端に上記軸心を含む平面として
形成した切削刃の取付面に所望形状の切削刃を所定の固
定手段で固定し、上記の弾性変形支点は、切削刃の切削
進行方向に見て上記取付面の前方領域に配設して切削反
力を弾性的に吸収することにより、切削加工反力を一定
変動内に抑制し、又かじりや食い込みを防止しつつ切削
刃を所定の軌跡に沿ってワークに対して相対的に進行せ
しめることによって切削加工作用を進行させ、同時にC
軸回転により切削軌跡を曲線軌跡に選定することも可能
とし、かつ、ワーク表面に断面が対称及び非対称の任意
の加工溝を切削加工できるようにしたヘールバイト形切
削工具を提供し、実願平3ー74976号に開示した。On the other hand, recently, there has been a demand for performing a cutting process such as a grooving process on a work having a planar processing surface by a milling machine tool. For example, in mold processing, etc., simply
There is also a demand for precisely processing not only straight grooves but also grooves along closed curves. Conventionally, in such a curved groove, processing using an end mill as a cutting tool is generally performed.
In this end milling method, since the cutting is performed while the tool itself has a rotation axis and rotates, the shape of the processing groove is necessarily limited to a symmetrical cross section. When cutting a groove with an asymmetrical cross section, it is necessary to move a cutting blade having a shape that matches the cross-sectional shape of the groove relatively along the curved path between the workpiece and the cutting edge. Therefore, it is necessary to provide the cutting tool itself with a C-axis rotation that changes the traveling direction along with the curve of the movement trajectory. Therefore, even if the C-axis rotation function is provided, a desired processing dimensional accuracy can be obtained, and the processing cross section of the work can be applied to both symmetrical and asymmetrical cutting processing, and the work can be performed with a fine finish surface roughness. As a result of developing and devising a cutting tool capable of mainly performing grooving, the present applicant has developed an elastically deformable cutting tool which is mounted on a machine tool having a C-axis and performs a cutting process on a work surface. A hail-bit type cutting tool having a slit forming a fulcrum above the cutting blade along a plane orthogonal to the tool axis, and the cutting tool has a shank having an axis coinciding with the C axis. And, a cutting blade of a desired shape is fixed to a mounting surface of the cutting blade formed as a plane including the axis at the tip of the shank by predetermined fixing means, and the elastic deformation fulcrum is in the cutting progress direction of the cutting blade. See the front area of the mounting surface The cutting reaction force is suppressed within a certain range by elastically absorbing the cutting reaction force, and the cutting blade can be moved along the predetermined trajectory while preventing galling and biting. The cutting action is advanced by relatively moving the
Provided is a hail bite type cutting tool that enables a cutting locus to be selected as a curved locus by rotating the shaft, and that can cut an arbitrary processing groove having a symmetrical or asymmetrical cross section on the work surface. 3-74976.
【0004】[0004]
【発明が解決しようとする課題】然しながら、上述の切
削工具にあっても、なお、構造上の改善が要請されてい
る。すなわち、この種のヘールバイト形切削工具によ
り、同切削工具のシャンクの軸心方向にだけ漸次に切り
込み送りを与えながら所望の切削方向へ切削作用を進行
させる多くの場合と異なり、例えば、立て形工作機械の
回転主軸の工具保持部に軸体状のシャンクとその先端に
切削刃を有した切削工具を装着しながら、その切削刃は
シャンク軸心と略垂直な横方向に漸次に切り込み送りを
受ける切れ刃を有した切削刃を用い、シャンク軸心に垂
直なワーク上面から立ち上がったワーク側面を切削加工
する場合には、上述した弾性変形支点を形成するスリッ
トを軸体状のシャンクの軸心に対し直交する平面内に設
けた構造では、同弾性変形支点がその平面内にあるか
ら、切削刃の切れ刃はワーク側面から切削加工反力を受
けたとき、切削加工済みワーク面に接触しない方向へ弾
性変形により逃げることはできない。つまり、ワーク側
面からの切削反力を受けて切削刃とシャンクの切削刃保
持部とが弾性変形すべき方向は、あたかも切削工具の軸
心が捩じれ変形するような方向であり、従来の弾性変形
支点では軸心を切削方向と逆向き方向に切削刃を折り曲
げるような変形作用しか生起させることができない。故
に、切れ刃が切削反力で変形したときに、折角の切削加
工済みワーク側面に損傷を与えてしまう危惧があると言
う問題点が有る。また、切削工具のシャンクの軸心に対
し横方向への切り込み送りを漸次に受けてワーク面を切
削加工する過程で、上述と同様な理由から、かじりや食
い込みを防止することが困難なことも同様である。However, there is still a need for structural improvements in the above cutting tools. In other words, unlike this type of halebite type cutting tool, unlike many cases in which a cutting action proceeds in a desired cutting direction while gradually providing cutting feed only in the axial direction of the shank of the cutting tool, for example, a vertical A cutting tool with a shaft-shaped shank and a cutting blade with a cutting blade at its tip is mounted on the tool holder of the rotating spindle of the machine tool, and the cutting blade gradually cuts and feeds in the lateral direction substantially perpendicular to the shank axis. When using a cutting blade having a receiving cutting edge and cutting the work side surface rising from the upper surface of the work perpendicular to the shank axis, the slit forming the above-mentioned elastic deformation fulcrum is formed by the shaft center of the shaft-shaped shank. In a structure provided in a plane perpendicular to the plane, the fulcrum of elastic deformation is in that plane, so that when the cutting edge of the cutting blade receives a cutting reaction It can not escape by elastic deformation in a direction that does not contact the click surface. In other words, the direction in which the cutting blade and the cutting blade holder of the shank should elastically deform due to the cutting reaction force from the side of the workpiece is the direction in which the axis of the cutting tool is torsionally deformed. At the fulcrum, only a deformation effect such as bending the cutting blade in the direction opposite to the cutting direction in the axis can be generated. Therefore, there is a problem in that when the cutting edge is deformed by the cutting reaction force, there is a fear that the side surface of the cut work piece may be damaged. Also, in the process of cutting the work surface by gradually receiving the cutting feed in the lateral direction with respect to the axis of the shank of the cutting tool, for the same reason as described above, it may be difficult to prevent galling and biting. The same is true.
【0005】依って、本発明の目的は、工作機械の回転
主軸の工具保持部に装着される装着部と同装着部から延
設される切削刃保持部を有した軸体状のシャンクと、同
シャンクの切削刃保持部に装着された切削刃とを有した
切削工具において、シャンク軸心に対し少なくとも横方
向に切り込み送りを受ける切れ刃を有する切削刃によっ
てワーク表面の切削加工を行う場合に適用可能な弾性変
形支点を形成するスリットを具備したヘールバイト形切
削工具を提供せんとするものである。Accordingly, an object of the present invention is to provide a shaft-shaped shank having a mounting portion mounted on a tool holding portion of a rotary spindle of a machine tool and a cutting blade holding portion extending from the mounting portion. In a cutting tool having a cutting blade mounted on the cutting blade holding portion of the shank, when performing cutting of the work surface by a cutting blade having a cutting edge that receives a cutting feed at least in a lateral direction with respect to the shank axis. It is an object of the present invention to provide a hail cutting tool having a slit forming an applicable elastic deformation fulcrum.
【0006】[0006]
【課題を解決するための手段】本発明は、切削工具のシ
ャンクにおける切削刃保持部の先端に取着された切削刃
がシャンク軸心又は同シャンクの切削刃保持部の軸心方
向に対して横方向へ切り込み送りを受ける切れ刃を有
し、所定の切削方向へ切削動作する過程でワークの被切
削面から、切れ刃を介して切削刃があたかも切削刃保持
部の軸心回りに捩じるような方向への切削反力を受けた
とき、その反力に応じた弾性変形を切削刃保持部の軸心
と交叉した傾斜面内に在ってしかも切削方向に見て切削
刃の前方領域内に変形支点を形成するようなスリットを
切削刃保持部に削設することによって上述の発明の目的
を達成するようにしたものである。According to the present invention, a cutting blade attached to a tip of a cutting blade holding portion of a shank of a cutting tool has a shank axial center or an axial direction of the cutting blade holding portion of the shank. It has a cutting edge that receives cutting feed in the lateral direction, and during the cutting operation in the predetermined cutting direction, the cutting blade is twisted from the surface to be cut of the work through the cutting edge as if around the axis of the cutting blade holding part. When receiving a cutting reaction force in a direction like this, the elastic deformation corresponding to the reaction force is on an inclined surface that intersects the axis of the cutting blade holder, and in front of the cutting blade when viewed in the cutting direction. The object of the invention described above is achieved by forming a slit in the cutting blade holding portion so as to form a deformation fulcrum in the region.
【0007】すなわち、本発明によれば、機械の工具保
持部に嵌着される装着部と、該装着部から先端側へ延設
される切削刃保持部とから成る軸体状に形成されたシャ
ンクと、該シャンクの前記切削刃保持部の先端に取着さ
れ、前記装着部の軸心に対し少なくともその横方向への
切込み送りを受ける切れ刃を有し、前記シャンクと共に
切削方向へ切削動作する切削刃と、前記シャンクの切削
刃保持部における先端から隔たった所定部位に、前記切
削方向に見た背面領域から前記切削刃の前方領域内まで
前記切削刃保持部の軸心に対する傾面に沿って削設さ
れ、内奥端を切削作用時の弾性変形支点に形成した傾斜
スリットと、前記シャンクの前記切削刃保持部に前記切
削刃を取着、固定する切削刃固定手段とを具備して構成
されたことを特徴とした切削工具が提供されるのであ
る。In other words, according to the present invention, the shaft is formed of a mounting portion fitted to the tool holding portion of the machine, and a cutting blade holding portion extending from the mounting portion to the distal end side. A shank, and a cutting edge attached to a tip of the cutting blade holding portion of the shank and receiving a cutting feed at least in a lateral direction with respect to an axis of the mounting portion, and performing a cutting operation in the cutting direction together with the shank. A cutting edge to be cut, at a predetermined position separated from the tip of the cutting blade holding portion of the shank, on an inclined surface with respect to the axis of the cutting blade holding portion from a back area viewed in the cutting direction to a front area of the cutting blade. And a cutting blade fixing means for attaching and fixing the cutting blade to the cutting blade holding portion of the shank. It is characterized by comprising Than is the cutting tool is provided with.
【0008】[0008]
【作用】本発明の切削工具は、同工具のシャンクの軸心
に関し横方向への切り込み送りを受ける切れ刃を有した
切削刃を保持した切削刃保持部に削設した傾斜スリット
が、ワーク表面から切れ刃にあたかも上記シャンク軸心
回りの捩じり変形を生起させるような切削反力を及ぼし
たときにも、切削刃の切れ刃をワークの加工済み面から
遠ざかる方向へ逃がすように弾性変形可能な変形支点を
供するから、ワークの被加工面は、切削加工の進捗によ
り切削刃自体の変形作用で損傷を受けることはなく、し
かも、切削刃は常にワークの加工済み表面から遠ざかる
方向へ自在に逃げ動作できるから、ワーク加工面への食
い込みやかじり等の不具合現象を発生することもないの
である。また、切削工具の切削刃保持部にたすき掛け状
に少なくとも2つの傾斜スリットを形成した構成とすれ
ば、切削刃の切れ刃の切り込み送り方向がシャンク軸心
に関し、切削方向を前方にして左右の横方向の何れの方
向に切り込み送りを受ける切れ刃であっても上述と同様
にワーク加工済み表面への損傷付与の危惧、かじりや食
い込み等の不具合現象に遭遇することは無い。以下、本
発明を添付図面に示す実施例に基づいて更に詳細に説明
する。According to the cutting tool of the present invention, an inclined slit formed in a cutting blade holding portion holding a cutting blade having a cutting edge for receiving a cutting feed in a lateral direction with respect to the axis of a shank of the tool has a work surface. Even when a cutting reaction force that causes torsional deformation around the shank axis is applied to the cutting edge, the cutting edge of the cutting blade is elastically deformed to escape in the direction away from the machined surface of the work. Provides a possible deformation fulcrum, so that the work surface of the workpiece is not damaged by the deformation action of the cutting blade itself as the cutting progresses, and the cutting blade is always free to move away from the processed surface of the work As a result, no inconvenience phenomenon such as biting into the workpiece processing surface and galling does not occur. In addition, if at least two inclined slits are formed in a crosswise manner in the cutting blade holding portion of the cutting tool, the cutting feed direction of the cutting blade of the cutting blade is related to the shank axis, and the cutting direction is left and right. In the same manner as described above, the cutting edge which receives the cutting feed in any of the lateral directions does not encounter the fear of giving damage to the work-processed surface, and does not encounter troubles such as galling and biting. Hereinafter, the present invention will be described in more detail based on embodiments shown in the accompanying drawings.
【0009】なお、本発明の切削工具は、切削刃がワー
クと相対的に所定の軌跡に沿って進行すると、切削刃の
切れ刃形状に従ってワーク表面を削成でき、かつ、切れ
刃にワーク表面から内部に向かう切り込み、つまり、切
削刃保持部の軸心に関し横方向への切り込みを漸次に付
与することにより、例えば、ワーク平面から立ち上がっ
たワーク側面に粗削り加工から仕上げ加工に至る切削加
工を円滑に遂行することができる。しかも、工作機械の
回転主軸によって付与されるC軸回転に従って切削刃の
進行軌跡は曲面軌跡をたどることも可能であることは言
うまでもない。そして、切削刃に作用する切削反力は、
傾斜平面に沿って削設されたスリットの内奥部に形成さ
れる弾性変形支点におけるシャンクのばね弾性変形作用
で常に一定の反力水準に吸収、抑制されるから、結果的
に、切削加工中の切込み量の変動が抑止され、切削刃
は、切込み量の多少に関わりなく安定した切削加工力を
発揮することができる。In the cutting tool of the present invention, when the cutting blade advances relative to the work along a predetermined trajectory, the work surface can be cut in accordance with the cutting edge shape of the cutting blade. From the workpiece to the inside, that is, by gradually providing a cut in the lateral direction with respect to the axis of the cutting blade holder, for example, to smoothly cut from roughing to finishing on the side of the work rising from the work plane. Can be carried out. In addition, it goes without saying that the traveling locus of the cutting blade can follow a curved surface locus according to the C-axis rotation given by the rotating main shaft of the machine tool. And the cutting reaction force acting on the cutting blade is
The elastic deformation of the shank at the fulcrum formed in the inner part of the slit cut along the inclined plane is always absorbed and suppressed to a constant level of reaction force by the spring elastic deformation action of the shank. The cutting blade can exhibit a stable cutting force regardless of the cutting depth.
【0010】[0010]
【実施例】図1は、本発明の第1実施例に係る切削工具
を切削進行方向の前方から見た正面図、図2は図1の2
−2線で示す矢視方向から見た要部側面図、図3は図1
に示す切削工具のシャンクにおける切削刃保持部に形成
された傾斜スリットと、その内奥部位に形成される弾性
変形支点の位置を貫通する貫通孔を示した図1のA矢視
による部分図、図4は同第1実施例の切削工具における
切削刃の弾性変形作用を説明する軸心に垂直な面で断面
した断面図、図5は本発明の第2実施例に係る切削工具
を切削進行方向の後方から見た要部背面図、図6は同実
施例による切削工具を側面から見た要部側面図、図7は
図6の7−7線による断面図である。FIG. 1 is a front view of a cutting tool according to a first embodiment of the present invention as viewed from the front in a cutting direction, and FIG.
FIG. 3 is a side view of a main part viewed from a direction indicated by an arrow indicated by -2 line.
FIG. 1 is a partial view along arrow A of FIG. 1 showing an inclined slit formed in a cutting blade holding portion of a shank of a cutting tool shown in FIG. 1 and a through hole penetrating a position of an elastic deformation fulcrum formed in an inner part thereof. FIG. 4 is a cross-sectional view taken along a plane perpendicular to the axis for explaining the elastic deformation action of the cutting blade in the cutting tool of the first embodiment. FIG. 5 shows the cutting tool according to the second embodiment of the present invention. FIG. 6 is a side view of a main part of the cutting tool according to the embodiment as viewed from the side, and FIG. 7 is a sectional view taken along line 7-7 of FIG.
【0011】図1〜図4において、本発明の第1実施例
による切削工具10は、一例として立て形工作機械の回
転主軸の先端に具備されたチャック8の工具取付孔9に
同主軸のC軸回転中心“C”に軸心を一致させて装着さ
れ、ワークWとの間で所望の直線又は曲線軌跡に沿って
相対的移動を行うことにより、ワーク表面に切削加工を
行う工具として形成され、シャンク20、切削刃40、
シャンク20に切削刃40を固定する固定手段を形成す
る止めねじ30を具備している。1 to 4, a cutting tool 10 according to a first embodiment of the present invention is, as an example, a tool mounting hole 9 of a chuck 8 provided at the tip of a rotating spindle of a vertical machine tool. It is mounted as a tool that performs cutting on the surface of the work by being mounted so that its axis coincides with the axis of rotation “C” and moving relative to the work W along a desired straight or curved locus. , Shank 20, cutting blade 40,
The shank 20 is provided with a set screw 30 forming a fixing means for fixing the cutting blade 40 to the shank 20.
【0012】上記シャンク20は、長い軸体形状を有
し、チャック8の取付孔9にガタの無い状態で嵌合、装
着される棒状体の装着部22と、この装着部22のチャ
ック端8aの位置から下方に垂下、延設した延長部とし
て形成された切削刃保持部24とを有しており、装着部
22にはチャック8の取付孔9に適宜個数のロックねじ
18で強固に止着されるようにねじ座25が形成されて
いる。そして、この装着部22は、ロックねじ18で取
付孔9に強固に止着されたとき、回転軸心Cに一致する
軸心を有する円筒形状体を成しているのである。The shank 20 has a long shaft shape, and has a rod-shaped mounting portion 22 fitted and mounted in the mounting hole 9 of the chuck 8 without play, and a chuck end 8a of the mounting portion 22. And a cutting blade holding portion 24 formed as an extended portion that extends downwardly from the position of the cutting blade 22. The mounting portion 22 is securely fastened to the mounting hole 9 of the chuck 8 with an appropriate number of lock screws 18. A screw seat 25 is formed to be attached. When the mounting portion 22 is firmly fixed to the mounting hole 9 with the lock screw 18, the mounting portion 22 has a cylindrical shape having an axis that coincides with the rotation axis C.
【0013】他方、上記装着部22から下方に延長した
一体の切削刃保持部24は、下端に切削刃40を取り付
ける切削刃取付面26を形成する凹所部分が設けられ、
切削刃40は同凹所部分に下方から挿入され、切削刃取
付面26に背面42を密着状態に当接し、前面44側か
ら固定手段である止めねじ30で押圧されて上記切削刃
取付面26へ固定される。ここで、切削刃40は平板形
状を有し、下端には軸体状のシャンク20の軸心方向に
対し、実質的には直交する横方向又は側方向へ突出した
切れ刃46を備え、同切れ刃46は、ワークWに対する
切削加工条件に従って種々の刃形状を有している。本実
施例では、切削刃40の切れ刃46は、シャンク20の
軸心、延いては工作機械の主軸チャック8のC軸心とも
一致した方向に切れ刃46を有する通常のヘールバイト
形切削工具の切削刃と異なって上述のように横方向に
(図1、図4では左方向に)突出した切れ刃46を有し
ており、従って、例えば、ワークWが成形加工用金型等
の場合に、同金型の底面から立ち上がった側面を、切削
刃40が図1の紙面に対して垂直な下方向から上方向へ
切削進行することにより、切削加工を遂行することにな
るのである。図1及び図4は、こうしてワークWの側壁
面を切削刃40の切れ刃46が切削加工をしている状態
を示したものである。勿論、切れ刃46はワークWの側
壁面と同時に底面をも同時に切削加工する刃形状を有す
る場合もある。On the other hand, the integral cutting blade holding portion 24 extending downward from the mounting portion 22 is provided with a concave portion forming a cutting blade mounting surface 26 for mounting the cutting blade 40 at a lower end thereof.
The cutting blade 40 is inserted into the recessed portion from below, and the back surface 42 is brought into close contact with the cutting blade mounting surface 26, and is pressed from the front surface 44 side by a set screw 30 as a fixing means, and the cutting blade mounting surface 26 is pressed. Fixed to. Here, the cutting blade 40 has a flat plate shape, and has a cutting edge 46 protruding in a lateral direction or a side direction substantially orthogonal to the axial direction of the shank 20 having a shaft body at the lower end. The cutting edge 46 has various blade shapes according to the cutting conditions for the workpiece W. In this embodiment, the cutting edge 46 of the cutting blade 40 is a normal hail bite type cutting tool having the cutting edge 46 in a direction coinciding with the axis of the shank 20 and, further, the C axis of the spindle chuck 8 of the machine tool. Has a cutting edge 46 protruding in the lateral direction (to the left in FIGS. 1 and 4) as described above. Therefore, for example, when the workpiece W is a molding die or the like, In addition, the cutting process is performed by the cutting blade 40 cutting the side surface rising from the bottom surface of the mold from the lower side perpendicular to the plane of FIG. 1 to the upper side. FIGS. 1 and 4 show a state in which the cutting edge 46 of the cutting blade 40 is cutting the side wall surface of the work W in this manner. Of course, the cutting edge 46 may have a blade shape that cuts the bottom surface simultaneously with the side wall surface of the work W.
【0014】ここで、図4に明示するように、切削刃4
0の逃げ面47は、同刃40の前面44側から背面42
への傾面として形成されているが、切削加工の過程で
は、切れ刃46はワークWの側壁面の内部に向けて逐
次、切込み送りを受けながら、かつ上記の切削方向へ切
削を進めるから、ワーク側壁面から切削反力を受ける。
この切削反力は、切削刃40の切れ刃46に対しては、
モーメント力として作用するから、同切れ刃46を有す
る切削刃40を備えた切削工具10は、そのシャンク2
0の軸心の回りに捩じれを受けることになる。つまり、
切削刃40の切れ刃46が図4に実線で示す位置から一
点鎖線で示す位置へと変位するような捩じれ作用を受け
る。故に、この捩じれ過程で切れ刃46の先端が、既に
切削加工済みのワーク表面に損傷を与えないことが肝要
である。本発明は、斯かる切削刃40の切れ刃46の変
位過程で、同切れ刃46がワーク表面から遠ざかる方向
に逃げ動作を可能にすべく改善し、同時に、切削反力を
受けながら進行する切削加工過程で、かじりや食い込み
等の現象を生起することのない切削工具10を供するも
のである。Here, as clearly shown in FIG.
0 flank 47 extends from the front 44 side of the blade 40 to the rear 42
However, in the process of cutting, the cutting edge 46 successively receives cutting feed toward the inside of the side wall surface of the work W and advances cutting in the above-described cutting direction. A cutting reaction force is received from the side wall surface of the work.
This cutting reaction force is applied to the cutting edge 46 of the cutting blade 40.
Since it acts as a moment force, the cutting tool 10 provided with the cutting blade 40 having the same cutting edge 46 has the shank 2
It will be twisted around the zero axis. That is,
The cutting edge 46 of the cutting blade 40 is subjected to a twisting action such that the cutting edge 46 is displaced from the position indicated by the solid line in FIG. 4 to the position indicated by the dashed line. Therefore, it is important that the tip of the cutting edge 46 does not damage the already cut work surface in the twisting process. The present invention improves the cutting edge 46 of the cutting blade 40 during the displacement process of the cutting edge 46 so that the cutting edge 46 can escape in a direction away from the work surface, and at the same time, the cutting progresses while receiving the cutting reaction force. The present invention provides a cutting tool 10 that does not cause phenomena such as galling and biting in a machining process.
【0015】さて、本発明の第1の実施例によれば、切
削工具20のシャンク20における切削刃保持部24に
は、切削刃取付面26より更に上方領域にシャンク軸
心、従って本例では機械軸心“C”とも斜めに交叉する
面に沿い、しかも切削方向に見て同工具10の切削刃保
持部24の背面側から前面側へ切り込んだスリット28
が設けられている。同スリット28は、図1、図2から
明らかなように、シャンク軸心を傾斜面に沿って切り込
まれ、かつ、その内奥端は、切削刃40の前面44より
更に前方領域内へ達している。また、同スリット28の
内奥端を通過し、かつ、切削刃保持部24を斜めに貫通
する貫通孔28a(図3はこの貫通孔28aを明示して
いる)が形成されている。貫通孔28aは応力集中を防
止する働きをする。このスリット28の内奥端を通過す
貫通孔28aの中心線は、シャンク軸心に対して傾斜し
ており、同中心線から下方の切削刃保持部24及び切削
刃40の弾性変形の支点位置28bを形成しているもの
である。このように、切削刃40の弾性変形支点28b
を結んだ線がシャンク軸心に対して傾斜し、シャンク下
端からは距離L1、L2のように異なる位置で上記切削
刃保持部24を貫通した線上に配設され、かつ、同変形
支点28bの線が切削刃40の前面44の前方に配置さ
れていることから、切削刃40がワーク表面、特に、図
1のワークWの側壁面から切れ刃46の先端部を介して
切削反力を受けたとき、既述のように捩じれ方向の変位
は、切削刃40と切削刃保持部24の下方領域とが一体
となって上記傾斜した弾性変形支点の線に沿って、言わ
ば斜め上方に向けて生ずる。この結果、切削刃40の切
れ刃46はワーク表面から遠ざかる方向に逃げ動作する
ことができるのである。従って、切れ刃46が既に切削
加工済のワーク表面に変形過程で接触して損傷を及ぼす
ような不具合の発生は確実に回避することができ、勿
論、このように、切削刃40とその保持部24とが弾性
変形機能を有することにより、切れ刃46はかじりや食
い込みを起こすことなく、円滑に切削方向へ進行するこ
とができるのである。According to the first embodiment of the present invention, the cutting blade holding portion 24 of the shank 20 of the cutting tool 20 has a shank axial center in a region further above the cutting blade mounting surface 26. A slit 28 cut from the back side to the front side of the cutting blade holding portion 24 of the tool 10 along the plane obliquely intersecting with the machine axis "C" and in the cutting direction.
Is provided. As is clear from FIGS. 1 and 2, the slit 28 is formed by cutting the shank axis along the inclined surface, and the inner rear end of the slit 28 extends further forward than the front surface 44 of the cutting blade 40. ing. Further, a through hole 28a (FIG. 3 clearly shows the through hole 28a) which passes through the inner deep end of the slit 28 and obliquely penetrates the cutting blade holding portion 24 is formed. The through hole 28a functions to prevent stress concentration. The center line of the through hole 28a passing through the inner deep end of the slit 28 is inclined with respect to the shank axis, and the fulcrum position of the elastic deformation of the cutting blade holder 24 and the cutting blade 40 below the center line. 28b. Thus, the elastic deformation fulcrum 28b of the cutting blade 40
Are inclined with respect to the shank axis, and are disposed on the line penetrating the cutting blade holding portion 24 at different positions such as distances L1 and L2 from the lower end of the shank. Since the line is disposed in front of the front surface 44 of the cutting blade 40, the cutting blade 40 receives a cutting reaction force from the work surface, in particular, the side wall surface of the work W in FIG. At this time, as described above, the displacement in the torsional direction is such that the cutting blade 40 and the lower region of the cutting blade holding unit 24 are integrally formed along the line of the inclined elastic deformation fulcrum, so to speak, obliquely upward. Occurs. As a result, the cutting edge 46 of the cutting blade 40 can perform an escape operation in a direction away from the work surface. Therefore, it is possible to reliably avoid the problem that the cutting edge 46 comes into contact with the already cut work surface in the deformation process and causes damage, and, of course, the cutting blade 40 and its holding portion Since the cutting edge 24 has an elastic deformation function, the cutting edge 46 can smoothly advance in the cutting direction without causing galling or biting.
【0016】なお、図示の第1実施例では、シャンク2
0の切削工具保持部24に形成されたスリット28と貫
通孔28aは、シャンク軸心又はC軸心に対して傾斜角
度が略45度に形成されているが、この傾斜角度は、切
削刃40の切れ刃46がワークWの側壁面のみを切削加
工する場合や、側壁面と共にシャンク軸心が垂直に交わ
る平面等も同時に切削加工するような場合等、切削加工
で受ける切削反力の向きが種々変わるから、其に対応し
て適正な傾斜角度に選定すれば良いことは言うまでもな
い。また、上述の実施例は、立て型工作機械の回転主軸
に切削工具を装着する場合を例にして説明したが、本実
施例の切削工具をそのまま横形工作機械における水平な
回転主軸に装着してワーク面の平削り加工や仕上げ加工
等の切削加工に適用してかじり、食い込み等の回避を図
ることも可能であり、延いては、ワーク表面に切れ刃が
損傷を与えることのない高品質の切削加工を達成し得る
ことは理解すべきである。In the first embodiment shown, the shank 2
The inclination angle of the slit 28 and the through hole 28a formed in the cutting tool holding portion 24 is approximately 45 degrees with respect to the shank axis or the C axis. When the cutting edge 46 of the workpiece W cuts only the side wall surface of the work W, or when the flat surface where the shank axis vertically intersects with the side wall surface at the same time, the direction of the cutting reaction force received by the cutting process is Needless to say, it is only necessary to select an appropriate inclination angle in response to various changes. Further, in the above-described embodiment, the case where the cutting tool is mounted on the rotating spindle of the vertical machine tool has been described as an example, but the cutting tool of this embodiment is directly mounted on the horizontal rotating spindle of the horizontal machine tool. It can also be applied to cutting work such as planing and finishing of the work surface to avoid galling and biting, etc. It should be understood that cutting can be achieved.
【0017】さて、図5〜図7は、本発明による切削工
具の他の実施例を示している。本実施例では、図5に示
すように、切削工具10のシャンク20における切削刃
保持部24には前述した弾性変形支点28bの形成用の
スリット28に加えて、同スリット28に対しシャンク
軸心に関して略対称な配置で、たすき掛け状に他のスリ
ット128が設けられている。このスリット28、12
8は両者とも、切削加工の進行方向に見てシャンク20
における切削刃保持部24の背面側から前面側へ切り込
まれており、その内奥端を通る貫通孔28a、128a
を具備し、この貫通孔28aまたは128aの中心線上
に弾性変形支点を有している。すなわち、本実施例で
は、前者のスリット28、貫通孔28aと後者のスリッ
ト128、貫通孔128aとはシャンク軸心に関して略
対称な2つの傾斜線を弾性変形の支点として、切削刃保
持部24と同切削刃保持部24に取着される切削刃とに
切削反力に応じた弾性変形を許容し、以て切削加工時の
切れ刃をワーク表面から遠ざけるように逃がすことがで
きる。FIGS. 5 to 7 show another embodiment of the cutting tool according to the present invention. In this embodiment, as shown in FIG. 5, in addition to the slit 28 for forming the elastic deformation fulcrum 28b described above, the shank shaft center of the shank 20 of the cutting tool 10 The other slits 128 are provided in a crosswise manner in a substantially symmetrical arrangement with respect to. These slits 28, 12
8 is a shank 20 when viewed in the direction of the cutting process.
Are cut from the back side to the front side of the cutting blade holding portion 24, and the through holes 28a, 128a passing through the inner back end thereof
And has an elastic deformation fulcrum on the center line of the through hole 28a or 128a. That is, in the present embodiment, the former slit 28, the through hole 28a and the latter slit 128, the through hole 128a are provided with two cutting lines that are substantially symmetrical with respect to the axis of the shank, as the fulcrum of the elastic deformation, and The cutting blade attached to the cutting blade holding portion 24 is allowed to undergo elastic deformation in accordance with the cutting reaction force, so that the cutting blade during cutting can be released away from the work surface.
【0018】従って、本実施例の切削工具10の切削刃
保持部24の下端の凹所26内には上述した2種の弾性
変形支点に鑑み、図7に示すように、ワーク表面に向け
てシャンク軸心から横方向に突出した切れ刃46を有し
た切削刃40又はそれとは反対方向に突出した切れ刃1
46を有した切削刃140の何れか一方を挿着し、前述
の第1実施例と同様に固定ねじ手段を用いて固定し、ワ
ーク表面の切削加工を遂行すれば、シャンク軸心方向及
び切削進行方向の両者の方向と直交した左右対称な二方
向の何れか片方に突出した切れ刃46又は146を駆使
して2つの相対したワーク表面の所望の被加工面に切削
加工を施すことが可能となる。なお、このとき、何れか
片方の傾斜スリット28又は128を機能させて切削刃
40又は140に弾性変形性能を付与しながら切削加工
を遂行するから、他方のスリット、つまり、傾斜スリッ
ト28を使用するときは傾斜スリット128による弾性
変形機能を無効化して切削工具全体の剛性度を維持する
ことが良策であり、このために、本実施例ではシャンク
20の切削刃保持部24における側面領域から、夫々の
スリット28、128を貫通したねじ孔29a、29b
又は129a、129bを削設しておき、無効化すべき
側のスリットには、同スリットを貫通した上記ねじ孔側
にボルト(図示略)を螺合させれば、同スリットによる
弾性変形機能を一時的に無効化させることができるので
ある。図7は、特に、上記のねじ孔29a、29b、1
29a、129bを明示したものである。Therefore, in view of the above-described two kinds of elastic deformation fulcrum, the inside of the recess 26 at the lower end of the cutting blade holding portion 24 of the cutting tool 10 of this embodiment is directed toward the work surface as shown in FIG. Cutting blade 40 having cutting edge 46 projecting laterally from the shank axis or cutting edge 1 projecting in the opposite direction
Either one of the cutting blades 140 having the 46 is inserted and fixed using the fixing screw means as in the first embodiment, and the cutting of the workpiece surface is performed. By using the cutting edge 46 or 146 protruding in one of two symmetrical directions perpendicular to both directions of the traveling direction, it is possible to perform a cutting process on a desired surface to be machined on two opposing work surfaces. Becomes At this time, since the cutting process is performed while imparting elastic deformation performance to the cutting blade 40 or 140 by making one of the inclined slits 28 or 128 function, the other slit, that is, the inclined slit 28 is used. In some cases, it is a good measure to invalidate the elastic deformation function of the inclined slit 128 and maintain the rigidity of the entire cutting tool. For this reason, in the present embodiment, each of the shank 20 from the side surface region of the cutting blade holding portion 24 is Screw holes 29a, 29b passing through the slits 28, 128
Alternatively, 129a and 129b are cut in advance, and a bolt (not shown) is screwed into the slit on the side to be invalidated on the screw hole side penetrating the slit, so that the elastic deformation function by the slit is temporarily performed. It can be effectively invalidated. FIG. 7 shows, in particular, the screw holes 29a, 29b, 1
29a and 129b.
【0019】以上の説明から明らかなように、本実施例
では、切削工具10のシャンク軸心と所望の切削加工方
向との両者に略直交する方向に突出した切れ刃40又は
140を有した切削刃40又は140を選択的に挿着
し、同突出方向への切込みを切れ刃に与えてワーク表
面、特に、ワーク底面から立ち上がるワーク側壁面等の
切削加工を遂行可能としているものである。すなわち、
切削工具10のシャンク20に挿着、固定する切削刃を
使用現場で必要に応じて選択するだけで、ワークの2つ
の被加工面に所望の切削加工をかじりや食い込み作用等
を生起させることなく遂行し得るようにしたものであ
る。As is apparent from the above description, in this embodiment, the cutting tool having the cutting edge 40 or 140 projecting in a direction substantially perpendicular to both the shank axis of the cutting tool 10 and the desired cutting direction. The blade 40 or 140 is selectively inserted, and a cut in the same protruding direction is given to the cutting edge so that the work surface, particularly the work side wall surface rising from the work bottom surface, can be cut. That is,
By simply selecting the cutting blade to be inserted and fixed to the shank 20 of the cutting tool 10 as needed at the site of use, it is possible to perform the desired cutting work on the two work surfaces of the work without causing a galling or biting action. It is something that can be accomplished.
【0020】[0020]
【発明の効果】本発明は、上述の説明から明らかなよう
に、切削工具のシャンクにおける切削刃保持部の先端に
取着された切削刃がシャンク軸心又は同シャンクの切削
刃保持部の軸心方向に対して横方向へ切り込み送りを受
ける切れ刃を有し、所定の切削方向へ切削動作する過程
でワークの被切削面から、切れ刃を介して切削刃があた
かも切削刃保持部の軸心回りに捩じるような方向への切
削反力に受けたとき、その反力に応じた弾性変形を切削
刃保持部の軸心と交叉した傾斜面内に在ってしかも切削
方向に見て切削刃の前方領域内に変形支点を形成するよ
うなスリットを切削刃保持部に削設した構成としたか
ら、ワークの底面から立ち上がる側壁面の平削り、仕上
げ削り等に対しても切れ刃がワーク表面から遠ざかる方
向に弾性変形可能であり、依って、切削加工過程でのか
じりや食い込み等の不都合を生起することは無いと言う
効果を奏するのである。しかも、この点から、切削加工
済みのワーク表面を切削刃の切れ刃で損傷を与えるごと
き不都合も完全に回避でき、結果的に切削加工の円滑化
と切削加工面の高品質化を達成できるのである。As is apparent from the above description, the present invention is characterized in that the cutting blade attached to the tip of the cutting blade holder in the shank of the cutting tool has the shank axis or the shaft of the cutting blade holder of the shank. It has a cutting edge that receives cutting feed in the transverse direction to the center direction, and in the process of performing a cutting operation in a predetermined cutting direction, from the surface to be cut of the work, the cutting blade passes through the cutting edge as if the shaft of the cutting blade holding portion. When subjected to a cutting reaction force in a direction that twists around the center, elastic deformation corresponding to the reaction force is located on an inclined surface that intersects the axis of the cutting blade holding part and is viewed in the cutting direction. The slit is formed in the cutting blade holder so that a deformation fulcrum is formed in the front area of the cutting blade. Can be elastically deformed in the direction away from the workpiece surface. Ri, depending in, it is to an effect called not to rise to problems such as galling and biting by cutting process. In addition, from this point, it is possible to completely avoid inconvenience such as damaging the cut work surface with the cutting edge of the cutting blade, and as a result, it is possible to achieve smooth cutting and high quality of the cut surface. is there.
【図1】本発明の第1実施例に係る切削工具を切削進行
方向の前方から見た正面図である。FIG. 1 is a front view of a cutting tool according to a first embodiment of the present invention as viewed from the front in a cutting traveling direction.
【図2】図1の2−2線で示す矢視方向から見た要部側
面図である。FIG. 2 is a side view of a main part viewed from a direction indicated by an arrow 2-2 shown in FIG.
【図3】図1に示す切削工具のシャンクにおける切削刃
保持部に形成された傾斜スリットと、その内奥部位に形
成される弾性変形支点の位置を貫通する貫通孔を示した
図1のA矢視による部分図である。FIG. 3A shows an inclined slit formed in a cutting blade holding portion of a shank of the cutting tool shown in FIG. 1 and a through hole penetrating a position of an elastic deformation fulcrum formed in an inner part thereof. It is a partial view by an arrow.
【図4】同第1実施例の切削工具における切削刃の弾性
変形作用を説明する軸心に垂直な面で断面した断面図で
ある。FIG. 4 is a cross-sectional view taken along a plane perpendicular to an axis for explaining an elastic deformation action of the cutting blade in the cutting tool of the first embodiment.
【図5】本発明の第2実施例に係る切削工具を切削進行
方向の後方から見た要部背面図である。FIG. 5 is a rear view of a main part of a cutting tool according to a second embodiment of the present invention as viewed from the rear in a cutting progress direction.
【図6】同実施例による切削工具を側面から見た要部側
面図である。FIG. 6 is a main part side view of the cutting tool according to the embodiment as viewed from the side.
【図7】図6の7−7線による断面図である。FIG. 7 is a sectional view taken along line 7-7 in FIG. 6;
8…チャック 9…工具取付孔 10…切削工具 20…シャンク 22…装着部 24…切削刃保持部 26…切削刃取付面 28…スリット 28a…貫通孔 28b…弾性変形支点 30…止めねじ 40…切削刃 46…切れ刃 47…逃げ 128…スリット 128a…貫通孔 140…切削刃 146…切れ刃 DESCRIPTION OF SYMBOLS 8 ... Chuck 9 ... Tool mounting hole 10 ... Cutting tool 20 ... Shank 22 ... Mounting part 24 ... Cutting blade holding part 26 ... Cutting blade mounting surface 28 ... Slit 28a ... Through hole 28b ... Elastic deformation fulcrum 30 ... Set screw 40 ... Cutting Blade 46: Cutting blade 47: Escape 128: Slit 128a: Through hole 140: Cutting blade 146: Cutting blade
フロントページの続き (58)調査した分野(Int.Cl.6,DB名) B23B 27/02 B23B 29/00 B23D 13/00Continuation of the front page (58) Field surveyed (Int. Cl. 6 , DB name) B23B 27/02 B23B 29/00 B23D 13/00
Claims (2)
と、該装着部から先端側へ延設される切削刃保持部とか
ら成る軸体状に形成されたシャンクと、 該シャンクの前記切削刃保持部の先端に取着され、前記
装着部の軸心に対し少なくともその横方向への切り込み
送りを受ける切れ刃を有し前記シャンクと共に所定の切
削方向へ切削動作する切削刃と、 前記シャンクの切削刃保持部における先端から隔たった
所定部位に、前記切削方向に見た背面領域から前記切削
刃の前方領域内まで前記切削刃保持部の軸心に対する傾
面に沿って削設され、内奥端を切削作用時の弾性変形支
点に形成した傾斜スリットと、 前記シャンクの前記切削刃保持部に前記切削刃を取着、
固定する切削刃固定手段とを、具備して構成されたこと
を特徴とする切削工具。1. A shank formed in a shaft body comprising a mounting portion fitted to a tool holding portion of a machine, and a cutting blade holding portion extending from the mounting portion to a distal end side. A cutting blade attached to the tip of the cutting blade holding portion, having a cutting edge that receives at least a cutting feed in a lateral direction with respect to the axis of the mounting portion, and performing a cutting operation in a predetermined cutting direction together with the shank, A predetermined portion of the cutting blade holding portion of the shank, which is separated from the front end, is cut along a tilted surface with respect to the axis of the cutting blade holding portion from a rear region viewed in the cutting direction to a front region of the cutting blade. And an inclined slit formed at the innermost end as a fulcrum of elastic deformation at the time of cutting action, and attaching the cutting blade to the cutting blade holding portion of the shank,
Cutting tool fixing means for fixing the cutting tool.
削方向に見て前記傾斜スリットに対して該切削刃保持部
の軸心に関し略対称位置に、たすき掛け状に削設された
他の傾斜スリットと、 前記切削刃保持部の側部領域から前記両傾斜スリットと
交叉し、かつ、貫通して削設されたボルト螺合用ねじ孔
とを、更に具備し、 前記切削刃保持部に取着される前記切削刃は前記装着部
の軸心に対して左右両横方向の少なくともいずれか一方
向に切り込み送りを受ける切れ刃を有した着脱自在な切
削刃である請求項1に記載の切削工具。2. A cutting machine in which the predetermined portion of the cutting blade holder is cut in a cross-like manner at a position substantially symmetrical with respect to the axis of the cutting blade holder with respect to the inclined slit when viewed in the cutting direction. And an inclined slit, and a screw hole for bolt screwing, which intersects with the two inclined slits from the side region of the cutting blade holding portion, and is cut and penetrated, is further provided on the cutting blade holding portion. 2. The detachable cutting blade according to claim 1, wherein the attached cutting blade is a detachable cutting blade having a cutting edge that receives a cutting feed in at least one of left and right lateral directions with respect to the axis of the mounting portion. 3. Cutting tools.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5549692A JP2765778B2 (en) | 1992-03-13 | 1992-03-13 | Cutting tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5549692A JP2765778B2 (en) | 1992-03-13 | 1992-03-13 | Cutting tools |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05253704A JPH05253704A (en) | 1993-10-05 |
JP2765778B2 true JP2765778B2 (en) | 1998-06-18 |
Family
ID=13000253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5549692A Expired - Lifetime JP2765778B2 (en) | 1992-03-13 | 1992-03-13 | Cutting tools |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2765778B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104708102A (en) * | 2015-03-12 | 2015-06-17 | 陕西理工学院 | Elastic slotting tool |
-
1992
- 1992-03-13 JP JP5549692A patent/JP2765778B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH05253704A (en) | 1993-10-05 |
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