JPH04300107A - Method and tool for machining tip mounting surface - Google Patents
Method and tool for machining tip mounting surfaceInfo
- Publication number
- JPH04300107A JPH04300107A JP8971491A JP8971491A JPH04300107A JP H04300107 A JPH04300107 A JP H04300107A JP 8971491 A JP8971491 A JP 8971491A JP 8971491 A JP8971491 A JP 8971491A JP H04300107 A JPH04300107 A JP H04300107A
- Authority
- JP
- Japan
- Prior art keywords
- mounting surface
- cutting edge
- tool
- chip mounting
- tip
- 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.)
- Withdrawn
Links
- 238000003754 machining Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 47
- 239000000470 constituent Substances 0.000 claims description 3
- 230000006866 deterioration Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000003672 processing method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】この発明は、切削加工用のスロー
アウェイチップが装着される工具本体のチップ取付面の
加工方法に係り、詳しくは突切りバイトなど用いられる
Ｖ溝状のチップ取付面の加工方法に関する。[Industrial Application Field] The present invention relates to a method for machining the tip mounting surface of a tool body on which an indexable insert for cutting is mounted, and more specifically, the invention relates to a method for machining the tip mounting surface of a tool body on which an indexable insert for cutting is mounted. Regarding processing methods.
【０００２】0002
【従来の技術】鋼材などの切削加工に用いる加工工具と
して、超硬合金等の硬質材料からなるスローアウェイチ
ップ（以下、チップと略称する。）を、工具本体のチッ
プ取付座に着脱自在に装着したいわゆるスローアウェイ
式の切削工具が広く用いられているが、このようなスロ
ーアウェイ式切削工具の１種として例えば図６〜図８に
示す突切りバイト１が知られている。この突切りバイト
１は、ホルダ２の先端部に、長尺角柱状のチップ３がそ
の両端に形成された切刃４の一方を上記ホルダ２の前方
へ突出させて装着され、該チップ３がホルダ２に装着さ
れたクランプ駒５で押え込まれてなるものである。[Prior Art] As a processing tool used for cutting steel materials, an indexable tip (hereinafter abbreviated as a tip) made of a hard material such as cemented carbide is removably attached to the tip mounting seat of the tool body. So-called indexable cutting tools are widely used, and a parting tool 1 shown in FIGS. 6 to 8, for example, is known as one type of such indexable cutting tools. This parting tool 1 is attached to the tip of a holder 2 with a long prismatic tip 3 formed at both ends of the cutting blade 4, one of which protrudes forward of the holder 2. It is held down by a clamp piece 5 attached to the holder 2.
【０００３】ここで、上記ホルダ２は、断面四角形状を
なすホルダ本体６と、このホルダ本体６の先端部にボル
ト７で取り付けられたサポータ８とを有してなるもので
、サポータ８のホルダ本体６から突出する部分は、上記
チップ３とほぼ同一幅の薄板状に形成され、その上面側
に上記チップ３の下面３ａと密着するチップ取付面９が
形成されている。このチップ取付面９は、チップ３の下
面３ａが略Ｖ字状に突出するのに対応して幅方向両端側
から中央側へ向かうに従って当該サポータ８の下面側へ
次第に大きく陥没せしめられている。このようにチップ
３の下面３ａとチップ取付面９とを幅方向へ凹凸状に形
成するのはチップ３の幅方向への振れを防止して加工精
度を向上させるためである。なお、このチップ取付面９
の角度θ（以下、溝角θという。）は、加工すべき被削
材の材質やチップ３の幅などに応じて適宜設定されるが
、図示の例では１２０゜ に設定されている。The holder 2 has a holder main body 6 having a rectangular cross section, and a supporter 8 attached to the tip of the holder main body 6 with a bolt 7. The portion protruding from the main body 6 is formed into a thin plate shape having approximately the same width as the chip 3, and a chip mounting surface 9 that is in close contact with the lower surface 3a of the chip 3 is formed on the upper surface side. The chip mounting surface 9 is gradually recessed toward the lower surface of the supporter 8 from both ends in the width direction toward the center in correspondence with the substantially V-shaped projection of the lower surface 3a of the chip 3. The reason why the lower surface 3a of the chip 3 and the chip mounting surface 9 are formed unevenly in the width direction is to prevent the chip 3 from swinging in the width direction and improve processing accuracy. Note that this chip mounting surface 9
The angle θ (hereinafter referred to as groove angle θ) is appropriately set depending on the material of the workpiece to be machined, the width of the chip 3, etc., and is set to 120° in the illustrated example.
【０００４】そして、上記チップ取付座９の加工方法と
しては、専らエンドミルＥによる切削加工が用いられて
いる。具体的には、図９に示すように軸線Ｏの回りに円
筒面状の回転軌跡を描く外周刃ｅ１を備えたエンドミル
Ｅを、その外周刃ｅ１がチップ取付面９の一方の傾斜面
に沿うように移動させて一方の傾斜面を形成し、この後
、エンドミルＥを溝角θに相当する角度だけ傾けて反対
側の傾斜面を形成するという手順で行われる。[0004] As a method of machining the chip mounting seat 9, cutting using an end mill E is exclusively used. Specifically, as shown in FIG. 9, an end mill E is provided with an outer peripheral blade e1 that draws a cylindrical rotation locus around an axis O, and the outer peripheral blade e1 runs along one inclined surface of the tip mounting surface 9. The end mill E is moved to form one inclined surface, and then the end mill E is inclined by an angle corresponding to the groove angle θ to form the opposite inclined surface.
【０００５】なお、上記溝角θの加工精度は極めて厳し
く、１゜ 以内とされるのが一般的であり、しかもその
誤差方向も図１０に示すように溝角θがチップ下面３ａ
の挟角φよりも小さくなる方向に制限される。これは、
溝角θの誤差が大きくなるとチップ３の安定性が損なわ
れ、特に溝角θがチップ３の下面３ａの挟角φより大き
くなるとチップ３の下面３ａの中央側がチップ取付面９
の中央部と接触することとなってチップ３の安定性が著
しく劣化するため、溝角θを確実に挟角φよりも小さく
してチップ下面３ａの幅方向両端側とチップ取付面９の
両端側とを積極的に接触させようとするものである。な
お、図１０では溝角θと挟角φとの公差を明かにすべく
これらの角度差を誇張して描いているが、実際の基準寸
法としてはθ＝φと扱って差し支えない。[0005] The machining accuracy of the groove angle θ is extremely strict, and is generally within 1°, and the error direction is also as shown in FIG.
is limited to a direction smaller than the included angle φ. this is,
If the error in the groove angle θ becomes large, the stability of the chip 3 will be impaired. In particular, if the groove angle θ becomes larger than the included angle φ of the lower surface 3a of the chip 3, the center side of the lower surface 3a of the chip 3 will become attached to the chip mounting surface 9.
Since the stability of the chip 3 will be significantly deteriorated due to contact with the central part of the chip 3, make sure that the groove angle θ is smaller than the included angle φ so that both widthwise ends of the chip lower surface 3a and both ends of the chip mounting surface 9 This is an attempt to actively bring the two sides into contact with each other. In addition, in FIG. 10, in order to clarify the tolerance between the groove angle θ and the included angle φ, the difference in these angles is exaggerated, but it can be treated as θ=φ as an actual reference dimension.
【０００６】[0006]
【発明が解決しようとする課題】ところで、上述したよ
うに、エンドミルＥの傾きを変化させてチップ取付面９
を２回に分けて切削する加工方法では、エンドミルＥの
角度を変化させる際に誤差が生じ易く、従って溝角θを
上述の精度範囲に形成するためにエンドミルＥの角度変
化の操作などに細心の注意を払う必要が生じて加工に手
間がかかる欠点があった。また、少なくとも一回以上の
段取り替えを行う必要があるために、ＮＣ加工を行う際
にもチップ取付面９の左右で別々のプログラムを作成す
る必要があった。By the way, as mentioned above, it is possible to change the inclination of the end mill E to improve the tip mounting surface 9.
In the machining method of cutting in two steps, errors tend to occur when changing the angle of the end mill E. Therefore, in order to form the groove angle θ within the above-mentioned accuracy range, care must be taken when changing the angle of the end mill E. This had the disadvantage that it required careful attention to the processing, making processing time-consuming. Further, since it is necessary to change the setup at least once, it is necessary to create separate programs for the left and right sides of the chip mounting surface 9 when performing NC machining.
【０００７】さらに、図１１に示すように、例えば内径
加工用の工具ホルダの構成によってはチップ取付面９の
側方に突壁１０が形成されることがあり、かかる場合に
は突壁１０の側からエンドミルＥを挿入できないので、
事実上加工が不可能となることがあった。Furthermore, as shown in FIG. 11, depending on the configuration of a tool holder for internal machining, for example, a protruding wall 10 may be formed on the side of the tip mounting surface 9, and in such a case, the protruding wall 10 may be Since end mill E cannot be inserted from the side,
In some cases, processing became virtually impossible.
【０００８】この発明は、このような背景の下になされ
たもので、チップ取付面を簡単にかつ精度良く形成でき
るチップ取付面の加工方法及び加工工具を提供すること
を目的とする。The present invention was made against this background, and an object of the present invention is to provide a method and tool for machining a chip mounting surface that can easily and accurately form a chip mounting surface.
【０００９】[0009]
【課題を解決するための手段】上記課題を解決するため
にこの発明の加工方法は、チップ取付面を加工する加工
工具として、軸線回りに回転せしめられる工具本体の軸
線方向一端側の外周部に、上記軸線と平行でかつ上記軸
線を含む平面上において、チップの下面の断面輪郭と同
一形状の回転軌跡を描く切刃を備えたものを用い、この
加工工具の上記切刃を加工対象となるホルダの被加工部
と対向させた後、上記切刃と上記ホルダとの間に所定の
切込みを与えつつ該加工工具と上記ホルダとの間にチッ
プ取付面の延在方向への相対移動を与えて上記チップ取
付面を形成するものである。[Means for Solving the Problems] In order to solve the above problems, the machining method of the present invention is a machining tool for machining a chip mounting surface. , using a cutting edge that draws a rotation locus that is the same shape as the cross-sectional contour of the lower surface of the chip on a plane that is parallel to and includes the axis, and the cutting edge of this processing tool is used as the processing target. After the holder faces the workpiece, a predetermined depth of cut is provided between the cutting edge and the holder, and relative movement is provided between the processing tool and the holder in the extending direction of the chip mounting surface. This forms the chip mounting surface.
【００１０】また、この発明の加工工具は、互いに斜め
に交差する２以上の構成面からなる下面を備えた切削加
工用のチップが装着される工具本体に、上記チップの上
記下面と密着するチップ取付面を形成するチップ取付面
の加工工具であって、軸線回りに回転せしめられる軸状
体の軸線方向一端側の外周部に切刃が形成され、該切刃
は、上記軸線回りに描く回転軌跡が、上記軸線と平行で
かつ上記軸線を含む平面上において、上記チップの上記
下面の断面輪郭と同一形状となるように形成されてなる
ものである。Further, the processing tool of the present invention includes a tool body to which a cutting tip having a lower surface composed of two or more constituent surfaces diagonally intersecting each other is attached, and a tip that is in close contact with the lower surface of the tip. A cutting edge is formed on the outer periphery of one end in the axial direction of a shaft-like body that is rotated around an axis, and the cutting edge is formed on the outer periphery of a shaft-shaped body that rotates around the axis. The locus is formed to have the same shape as the cross-sectional contour of the lower surface of the chip on a plane parallel to and including the axis.
【００１１】[0011]
【作用】上記構成の加工工具を用いて上記加工方法でチ
ップ取付面を加工する場合には、加工工具を加工対象た
るホルダに対してチップ取付面を形成すべき方向へ１回
相対移動させるだけでチップ取付面を形成できるから、
段取り替えの必要がなくなって加工精度が向上する。ま
た、加工工具の軸線方向一端側に切刃を設けているから
、チップ取付面を形成する被加工部の少なくとも一方の
側方が開放されていれば加工工具を正しく被加工部に切
り込むことができる。[Operation] When machining the chip mounting surface using the processing method described above using the processing tool with the above configuration, simply move the processing tool once relative to the holder to be processed in the direction in which the chip mounting surface should be formed. Since the chip mounting surface can be formed with
Machining accuracy is improved by eliminating the need for setup changes. In addition, since the cutting edge is provided at one end in the axial direction of the processing tool, if at least one side of the workpiece that forms the chip mounting surface is open, the processing tool can correctly cut into the workpiece. can.
【００１２】0012
【実施例】以下、図１を参照して、本発明の一実施例に
係るチップ取付面の加工方法を説明するが、これに先だ
ってまず図２〜図５によって本実施例で使用する加工工
具の構成から説明する。なお、上述した従来例と共通す
る構成要素には同一符号を付し、説明を省略する。[Example] A method of machining a chip mounting surface according to an embodiment of the present invention will be explained below with reference to FIG. 1. However, first, FIGS. Let's start with the configuration. Note that the same reference numerals are given to the same components as those in the conventional example described above, and the description thereof will be omitted.
【００１３】図２は本実施例で使用する加工工具である
エンドミルを示すもので、このエンドミル２０は、軸状
なす工具本体２１の軸線方向先端側に刃部２２が形成さ
れる一方で、工具本体２１の他端側にシャンク２３が一
体成形されて概略構成されている。図２ないし図４に示
すように、刃部２２は、当該エンドミル２０の軸線Ｏと
同軸をなす短尺の回転体をなすもので、その外周部には
当該エンドミル２０の径方向中心側に切れ込む切欠部２
４が周方向に１８０゜ 隔てて形成されている。これら
切欠部２４は工具回転方向を向くすくい面２４ａを有し
、該すくい面２４ａは工具軸線Ｏと平行でかつ工具軸線
Ｏを含む平面の一部を構成している。また、刃部２２の
外周面２２ａは軸線方向両端側から中央に向かうに従っ
て漸次工具径方向外周側へ突出せしめられている。FIG. 2 shows an end mill that is a machining tool used in this embodiment. This end mill 20 has a cutting portion 22 formed on the tip end side in the axial direction of a shaft-shaped tool body 21. A shank 23 is integrally formed on the other end side of the main body 21 and is generally configured. As shown in FIGS. 2 to 4, the blade portion 22 is a short rotating body that is coaxial with the axis O of the end mill 20, and has a notch cut toward the center of the end mill 20 in the radial direction on its outer periphery. Part 2
4 are formed 180° apart in the circumferential direction. These notches 24 have rake faces 24a facing in the tool rotation direction, and the rake faces 24a constitute part of a plane parallel to and including the tool axis O. Further, the outer circumferential surface 22a of the blade portion 22 gradually projects toward the outer circumferential side in the tool radial direction from both ends in the axial direction toward the center.
【００１４】そして、刃部外周面２２ａと上記切欠部２
４の工具回転方向を向く壁面２４ａとの交差稜線部には
切刃２５が形成されている。これら切刃２５は、上記刃
部外周面２２ａの傾斜に沿う山形状をなし、その幅Ｓは
加工対象となるホルダ３のサポータ８の幅Ｗ（図１参照
）よりも僅かに大きく定められている。また、これら切
刃２５の先端角αは上記チップ３の下面３ａの挟角φと
等しく設定されている。なお、これら切刃２５は当該切
刃２５の頂点を通過して上記工具軸線Ｏと直交する幅方
向中心線ｎに対して線対称をなしている（図２参照）。[0014] Then, the outer circumferential surface 22a of the blade portion and the above-mentioned notch 2
A cutting edge 25 is formed at the intersection ridgeline with the wall surface 24a facing the tool rotation direction of No. 4. These cutting edges 25 have a mountain shape that follows the slope of the outer circumferential surface 22a of the blade portion, and the width S thereof is set to be slightly larger than the width W (see FIG. 1) of the supporter 8 of the holder 3 to be processed. There is. Further, the tip angle α of these cutting edges 25 is set equal to the included angle φ of the lower surface 3a of the tip 3. Note that these cutting edges 25 are symmetrical with respect to a widthwise center line n that passes through the apex of the cutting edges 25 and is perpendicular to the tool axis O (see FIG. 2).
【００１５】一方、図２及び図５に示すように、上記シ
ャンク２３は刃部２２と同軸をなす円柱体形状に形成さ
れており、その先端側は円錐部２６及び小径の首部２７
を介して上記刃部２２に連なっている。On the other hand, as shown in FIGS. 2 and 5, the shank 23 is formed into a cylindrical shape coaxial with the blade portion 22, and the distal end thereof has a conical portion 26 and a small diameter neck portion 27.
It is connected to the blade portion 22 via.
【００１６】しかして、以上のように構成されたエンド
ミル２０を用いて上述したサポータ８にチップ取付面９
を形成するには、図１に示すように、ホルダ本体６（図
６参照）から取り外したサポータ８を図示せぬ工作機械
のワーク把持部に装着する。ついでエンドミル２０を、
その刃部外周面２２ａがサポータ８の上面（被加工部）
８ａと対向し、しかも刃部外周面２２ａの幅方向中心が
サポータ８の幅方向中心と一致するように配置する。な
お、この状態で工具軸線Ｏはサポータ８の高さ方向（図
１で上下方向）と直交せしめられている。[0016] Using the end mill 20 configured as described above, the tip mounting surface 9 is attached to the supporter 8 described above.
To form this, as shown in FIG. 1, the supporter 8 removed from the holder body 6 (see FIG. 6) is attached to a work gripping portion of a machine tool (not shown). Next, end mill 20,
The outer peripheral surface 22a of the blade part is the upper surface of the supporter 8 (workpiece part)
8a, and arranged so that the widthwise center of the blade outer circumferential surface 22a coincides with the widthwise center of the supporter 8. In this state, the tool axis O is perpendicular to the height direction (vertical direction in FIG. 1) of the supporter 8.
【００１７】エンドミル２０を上記配置においたならば
、続いてエンドミル２０をその軸線回りに回転させると
ともに、サポータ８に向かって下降させて切刃２５をサ
ポータ８の上面に所定量だけ切り込ませる。そして、エ
ンドミル２０をチップ取付面９を形成すべき方向、すな
わちサポータ上面８ａに沿う方向（図１において紙面と
直交する方向）へ送り出してサポータ上面８ａを逐次切
削してゆく。Once the end mill 20 is placed in the above arrangement, the end mill 20 is then rotated around its axis and lowered toward the supporter 8 to cause the cutting blade 25 to cut into the upper surface of the supporter 8 by a predetermined amount. Then, the end mill 20 is sent out in the direction in which the chip mounting surface 9 is to be formed, that is, in the direction along the supporter upper surface 8a (in the direction perpendicular to the paper plane in FIG. 1), and the supporter upper surface 8a is successively cut.
【００１８】しかして、以上の加工方法によれば、エン
ドミル２０の切刃２５は、工具軸線Ｏと平行でかつ軸線
Ｏを含む平面の一部を構成するすくい面２４ａ上に形成
され、かつチップ３の下面３ａの挟角φと同一の先端角
αを有し、しかもその幅Ｓもサポータ８に形成すべきチ
ップ取付面９の幅Ｗより僅かに大きく定められているか
ら、切刃２５をサポータ８の上面８ａに切り込むことに
よってサポータ８にはチップ取付面９の２つの傾斜面が
一度に形成される。従って、本実施例によれば段取り替
えを行うことなくチップ取付面９を形成できることとな
って、段取り替えによる加工時間の無駄やチップ取付面
９の角度誤差を排除できる。また、２つの傾斜面を一度
に形成できるのでＮＣ加工を行う場合も一つのプログラ
ムを用意すれば足りることになる。さらに、本実施例の
加工方法によれば、サポータ８の一方の側にのみエンド
ミル２０が延びるので、図１に２点鎖線で示すように、
サポータ８の他方の側部に突壁３０が形成されていても
何等問題なくチップ取付面９を加工できる。According to the above machining method, the cutting edge 25 of the end mill 20 is formed on the rake face 24a that is parallel to the tool axis O and forms part of a plane that includes the axis O, and The cutting edge 25 has the same tip angle α as the included angle φ of the lower surface 3a of the supporter 8. By cutting into the upper surface 8a of the supporter 8, two inclined surfaces of the chip mounting surface 9 are formed on the supporter 8 at once. Therefore, according to this embodiment, the chip mounting surface 9 can be formed without changing the setup, and it is possible to eliminate wasted processing time and angular errors of the chip mounting surface 9 due to the setup change. Furthermore, since two inclined surfaces can be formed at once, it is sufficient to prepare one program even when performing NC machining. Furthermore, according to the processing method of this embodiment, the end mill 20 extends only to one side of the supporter 8, so as shown by the two-dot chain line in FIG.
Even if the projecting wall 30 is formed on the other side of the supporter 8, the chip mounting surface 9 can be processed without any problem.
【００１９】なお、以上の実施例では、特にホルダ３に
略Ｖ字状のチップ取付面９を形成する場合について説明
したが、本発明はこれに限るものではなく、２つの傾斜
面の間にサポータ８の下面と平行な面を設けたり、その
他種々の変形を行い得る。In the above embodiments, the holder 3 is particularly provided with a substantially V-shaped chip mounting surface 9, but the present invention is not limited to this. A surface parallel to the lower surface of the supporter 8 may be provided, and other various modifications may be made.
【００２０】また、エンドミル２０についても、切刃２
５が一体成形されたソリッド形式のものを例として説明
しているが、その他にもろう付け式、あるいはスローア
ウェイ式など種々の構成のものが適用される。また、切
刃２５も必ずしもチップ下面３ａに対応した山形状とす
る必要はなく、例えばチップ取付面９の一方の傾斜面に
対応する切刃と他方の傾斜面に対応する切刃とが周方向
に千鳥状に配置された構成の工具でも良く、結局、切刃
が工具軸線回りに描く回転軌跡を、工具軸線と平行でか
つ工具軸線を含む平面で重ね合わせたときに、上記チッ
プ取付面９の断面輪郭と同一形状が得られれば良いので
ある。[0020] Also, regarding the end mill 20, the cutting blade 2
Although a solid type in which 5 is integrally molded is described as an example, various other configurations such as a brazing type or a throw-away type are also applicable. Further, the cutting edge 25 does not necessarily have to have a mountain shape corresponding to the tip lower surface 3a, and for example, the cutting edge corresponding to one inclined surface of the tip mounting surface 9 and the cutting edge corresponding to the other inclined surface are The tool may be arranged in a staggered manner, and when the rotation loci drawn by the cutting blades around the tool axis are superimposed on a plane that is parallel to and includes the tool axis, the tip mounting surface 9 It is sufficient if the same shape as the cross-sectional contour is obtained.
【００２１】[0021]
【発明の効果】以上説明したように、この発明のチップ
取付面の加工方法によれば、チップ取付面を段取り替え
を行うことなく形成できるから、段取り替えに伴う加工
時間の無駄や加工精度の劣化を排除でき、特にＮＣ加工
を行う場合には一のプログラムでチップ取付面を形成き
でるので加工準備に要するコストも低減できるという優
れた効果を奏する。また、この発明の加工工具によれば
、工具本体の一端側に切刃が形成されているのでホルダ
のチップ取付面を形成すべき部分の一端側が突壁等で塞
がっていても何等支障なくチップ取付面を形成できると
いう優れた効果が得られる。Effects of the Invention As explained above, according to the method for processing a chip mounting surface of the present invention, the chip mounting surface can be formed without performing a setup change, thereby eliminating wasted processing time and reducing machining accuracy due to setup changes. Deterioration can be eliminated, and especially when performing NC machining, the chip mounting surface can be formed with one program, which has the excellent effect of reducing the cost required for machining preparation. Further, according to the processing tool of the present invention, since the cutting edge is formed on one end side of the tool body, even if one end side of the part of the holder that should form the chip mounting surface is blocked by a projecting wall, etc., there will be no problem in chipping. An excellent effect can be obtained in that a mounting surface can be formed.
【図１】本発明の加工方法を示す図である。FIG. 1 is a diagram showing a processing method of the present invention.
【図２】本発明の一実施例における加工工具の平面図で
ある。FIG. 2 is a plan view of a processing tool in one embodiment of the present invention.
【図３】図２のＩＩＩ方向からの矢視図である。FIG. 3 is a view taken from the direction III in FIG. 2;
【図４】図２のＩＶ方向からの矢視図である。FIG. 4 is a view taken from the direction IV in FIG. 2;
【図５】図２のＶ方向からの矢視図である。FIG. 5 is a view taken from the direction of arrow V in FIG. 2;
【図６】従来の突切りバイトの側面図である。FIG. 6 is a side view of a conventional cutting tool.
【図７】図６のＶＩＩ方向からの矢視図である。7 is a view taken from the direction VII in FIG. 6; FIG.
【図８】図６のＶＩＩＩ方向からの矢視図である。FIG. 8 is a view taken from the direction of arrow VIII in FIG. 6;
【図９】従来のチップ取付面の加工方法を示す図である
。FIG. 9 is a diagram showing a conventional method for processing a chip mounting surface.
【図１０】チップ下面とチップ取付面との関係を示す図
である。FIG. 10 is a diagram showing the relationship between the lower surface of the chip and the chip mounting surface.
【図１１】内径加工用のバイトを示す図である。FIG. 11 is a diagram showing a cutting tool for inner diameter machining.
【符号の説明】 ２ ホルダ ３ スローアウェイチップ ３ａ スローアウェイチップの下面 ９ チップ取付面 ２０ エンドミル ２５ 切刃[Explanation of symbols] 2 Holder 3 Throwaway tip 3a Bottom surface of indexable tip 9 Chip mounting surface 20 End mill 25 Cutting blade
Claims (2)
からなる下面を備えた切削加工用のスローアウェイチッ
プが装着されるホルダに、上記スローアウェイチップの
上記下面と密着するチップ取付面を形成するチップ取付
面の加工方法であって、上記チップ取付面を加工する加
工工具として、軸線回りに回転せしめられる工具本体の
軸線方向一端側の外周部に、上記軸線と平行でかつ該軸
線を含む一平面上において、上記スローアウェイチップ
の上記下面の断面輪郭と同一形状の回転軌跡を描く切刃
を備えたものを用い、この加工工具の上記切刃を加工対
象となる上記ホルダの被加工部と対向させた後、上記切
刃と上記ホルダとの間に所定の切込みを与えつつ該加工
工具と上記ホルダとの間に、形成すべきチップ取付面の
延在方向への相対移動を与えて上記チップ取付面を形成
することを特徴とするチップ取付面の加工方法。1. A holder to which an indexable tip for cutting, which has a lower surface composed of two or more constituent surfaces diagonally intersecting with each other, is mounted, is provided with a tip mounting surface that comes into close contact with the lower surface of the indexable insert. A method for machining a chip mounting surface, wherein the processing tool for processing the chip mounting surface includes a tool body that is rotated around an axis and has an outer circumference on one end in the axial direction that is parallel to and includes the axis. Using a cutting edge that draws a rotation locus that is the same shape as the cross-sectional contour of the lower surface of the indexable insert on one plane, the cutting edge of this processing tool is connected to the workpiece of the holder to be machined. After facing the cutting edge and the holder, a predetermined depth of cut is provided between the cutting edge and the holder, and relative movement is provided between the processing tool and the holder in the extending direction of the chip mounting surface to be formed. A method for processing a chip mounting surface, comprising forming the chip mounting surface described above.
からなる下面を備えた切削加工用のスローアウェイチッ
プが装着される工具本体に、上記スローアウェイチップ
の上記下面と密着するチップ取付面を形成するチップ取
付面の加工工具であって、軸線回りに回転せしめられる
軸状体の軸線方向一端側の外周部に切刃が形成され、該
切刃は、上記軸線回りに描く回転軌跡が、上記軸線と平
行でかつ上記軸線を含む一平面上において、上記スロー
アウェイチップの上記下面の断面輪郭と同一形状となる
ように形成されていることを特徴とするチップ取付面の
加工工具。2. A tool body to which an indexable tip for cutting, which has a lower surface composed of two or more constituent surfaces diagonally intersecting each other, is mounted, and a tip mounting surface that is in close contact with the lower surface of the indexable insert. A cutting edge is formed on the outer periphery of one end in the axial direction of a shaft-shaped body that is rotated around the axis, and the cutting edge has a rotation locus drawn around the axis, A processing tool for a chip mounting surface, characterized in that the tool is formed to have the same cross-sectional profile as the lower surface of the indexable insert on a plane that is parallel to and includes the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8971491A JPH04300107A (en) | 1991-03-28 | 1991-03-28 | Method and tool for machining tip mounting surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8971491A JPH04300107A (en) | 1991-03-28 | 1991-03-28 | Method and tool for machining tip mounting surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04300107A true JPH04300107A (en) | 1992-10-23 |
Family
ID=13978441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8971491A Withdrawn JPH04300107A (en) | 1991-03-28 | 1991-03-28 | Method and tool for machining tip mounting surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04300107A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006198743A (en) * | 2005-01-21 | 2006-08-03 | Nisshin Kogu Kk | Small-diameter rotary tool, and method of cutting workpiece formed of high-hardness material |
| WO2020218333A1 (en) * | 2019-04-26 | 2020-10-29 | 株式会社牧野フライス製作所 | Milling tool and workpiece machining method flight |
| US20220410291A1 (en) * | 2017-12-13 | 2022-12-29 | Makino Milling Machine Co., Ltd. | Milling tool and workpiece machining method |
-
1991
- 1991-03-28 JP JP8971491A patent/JPH04300107A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006198743A (en) * | 2005-01-21 | 2006-08-03 | Nisshin Kogu Kk | Small-diameter rotary tool, and method of cutting workpiece formed of high-hardness material |
| US20220410291A1 (en) * | 2017-12-13 | 2022-12-29 | Makino Milling Machine Co., Ltd. | Milling tool and workpiece machining method |
| US11890687B2 (en) * | 2017-12-13 | 2024-02-06 | Makino Milling Machine Co., Ltd. | Milling tool and workpiece machining method |
| WO2020218333A1 (en) * | 2019-04-26 | 2020-10-29 | 株式会社牧野フライス製作所 | Milling tool and workpiece machining method flight |
| JP2020182981A (en) * | 2019-04-26 | 2020-11-12 | 株式会社牧野フライス製作所 | Milling tool and work-piece processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19980514 |