JPH0418724Y2 - - Google Patents
Info
- Publication number
- JPH0418724Y2 JPH0418724Y2 JP1985098986U JP9898685U JPH0418724Y2 JP H0418724 Y2 JPH0418724 Y2 JP H0418724Y2 JP 1985098986 U JP1985098986 U JP 1985098986U JP 9898685 U JP9898685 U JP 9898685U JP H0418724 Y2 JPH0418724 Y2 JP H0418724Y2
- Authority
- JP
- Japan
- Prior art keywords
- throw
- wall surface
- chip
- notch
- outer periphery
- 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
Links
- 230000000694 effects Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Milling Processes (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は丸形のスローアウエイチツプに関す
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a round throw-away tip.
従来、第８図及び第９図に示すような丸形板状
のスローアウエイチツプ１が知られている。この
丸形のスローアウエイチツプ１は、切刃が長いた
め切削強度が高く、使用コーナ数が多い等の利点
があるため、バイトからカツタに至るまで広い範
囲で利用されている。この丸形のスローアウエイ
チツプ１を第６図及び第７図に示す工具本体（エ
ンドミル本体）２に取り付けたとき、その回転中
心軸３とスローアウエイチツプ１の先端４は第６
図に示す間隔Ｅだけ離間している。この間隔Ｅの
量はエンドミル本体２の回転中、スローアウエイ
チツプ１の非切削部が被削材と干渉しない程度ま
で小さくすることができ、刃数は一般的に前記Ｅ
の量が大きいときには複数刃とされ、小さいとき
には単刃とされている。
Conventionally, a circular plate-shaped throw-away tip 1 as shown in FIGS. 8 and 9 has been known. This round throw-away tip 1 has advantages such as high cutting strength due to its long cutting edge and a large number of usable corners, so it is used in a wide range of applications from cutting tools to cutters. When this round throw-away tip 1 is attached to the tool body (end mill body) 2 shown in FIGS. 6 and 7, the rotation center axis 3 and the tip 4 of the throw-away tip 1
They are separated by the distance E shown in the figure. The distance E can be made small enough to prevent the non-cutting part of the throw-away tip 1 from interfering with the workpiece while the end mill body 2 is rotating, and the number of teeth is generally
When the amount is large, it is said to have multiple blades, and when it is small, it is said to be single blade.
〔考案が解決しようとする問題点〕
ところが、従来このような丸形のスローアウエ
イチツプ１においては、外周が円形であるため、
例えば第６図に示すエンドミル本体２にこのスロ
ーアウエイチツプ１と取り付けて切削を行つた場
合、外形が円形であるため、このスローアウエイ
チツプ１をその円周方向へ回そうとする力が加わ
り、スローアウエイチツプ１の着座性が悪いの
で、取付部材５の他にクランプ部材６を用いてス
ローアウエイチツプ１のクランプ強度を上げ、ス
ローアウエイチツプ１の精度の向上を図らなけれ
ばならず、操作性が悪く、部品点数が多くなり、
また、丸形であるため切刃量が長くなり、断続切
削による大きな衝撃が一度に受けるため、切刃の
欠損やチツピングを生じ易いという問題があつ
た。[Problems to be solved by the invention] However, in the conventional circular throw-away tip 1, since the outer circumference is circular,
For example, when cutting is performed by attaching this throw-away tip 1 to the end mill body 2 shown in Fig. 6, since the outer shape is circular, a force is applied to turn the throw-away tip 1 in the circumferential direction. Since the seating of the throwaway tip 1 is poor, it is necessary to use a clamping member 6 in addition to the mounting member 5 to increase the clamping strength of the throwaway tip 1 and improve the accuracy of the throwaway tip 1. is poor, the number of parts increases,
In addition, since the cutting edge is round, the length of the cutting edge is long, and because the cutting edge is subjected to a large impact due to interrupted cutting at once, there is a problem that the cutting edge is easily damaged or chipped.
また、切削時におけるスローアウエイチツプ１
の先端部と回転中心軸３を中心とする最大切削半
径部とでは切削速度が異なり、切削性能に大きな
影響を及ぼし、この傾向は、工具本体の回転中心
軸３に対しスローアウエイチツプ１の中心のズレ
量（間隔Ｅ）が小さいときには特に大きいという
問題があつた。 In addition, the throw-away tip 1 during cutting
The cutting speed differs between the tip of the tip and the maximum cutting radius around the rotation center axis 3, which has a great effect on cutting performance. This problem is especially large when the amount of deviation (distance E) is small.
また、工具本体２の回転中心軸３とスローアウ
エイチツプ１の中心とのズレ量（間隔Ｅ）が小さ
い程切屑の排出作業が低下し、切屑の巻込み等に
よる切削面の悪化やスローアウエイチツプ１の欠
損、特にスローアウエイチツプ１の先端部の欠損
が起き易いという問題もあつた。 In addition, the smaller the amount of deviation (distance E) between the center of rotation axis 3 of the tool body 2 and the center of the throw-away tip 1, the slower the chip evacuation work will be. There was also a problem in that the tip of the throw-away tip 1 was easily damaged, especially the tip of the throw-away tip 1.
本考案は、従来のものがもつ以上のような欠点
を解決したスローアウエイチツプを提供すること
を目的とする。 The object of the present invention is to provide a throw-away tip that solves the above-mentioned drawbacks of conventional tips.
本考案は上記問題点を解決するためになされた
もので、外周が円形とされた丸形板状のスローア
ウエイチツプにおいて、前記外周を３等分する位
置に、当該スローアウエイチツプの上面から下面
に達し、かつ、上面と直交する方向からの平面視
において略Ｖ字形をなす切欠きが形成され、この
切欠きの一方の壁面は、前記平面視において、当
該一方の壁面と外周との交差部から内周側へ向か
うに従つて、当該スローアウエイチツプの前記一
方の壁面と外周との交差部を通過する直径線に対
して切欠きの他方の壁面側へ漸次傾斜する傾斜面
に形成され、前記切欠きの一方の壁面と前記上面
との交差部が、当該スローアウエイチツプの外周
側からの側面視において前記一方の壁面及びと前
記上面と滑らかに連続する凸曲面に形成されてい
ることを特徴とするものである。
The present invention has been made to solve the above-mentioned problems, and in a circular plate-shaped throw-away chip with a circular outer periphery, a A notch is formed which reaches the upper surface and has a substantially V shape when viewed in plan from a direction perpendicular to the top surface, and one wall surface of this notch is located at the intersection of the one wall surface and the outer periphery in plan view. formed into an inclined surface that gradually slopes toward the other wall surface of the notch with respect to a diameter line passing through the intersection of the one wall surface and the outer periphery of the throwaway chip as it goes toward the inner peripheral side, The intersection between one wall surface of the notch and the top surface is formed into a convex curved surface that smoothly continues with the one wall surface and the top surface when viewed from the outer circumferential side of the throw-away chip. This is a characteristic feature.
なお、ここでいうスローアウエイチツプの直径
線とは、円形に形成された外周の円弧中心を通過
する直線をいい、切欠きの一方の壁面と外周との
交差部を通過する直径線は各切欠きに対してそれ
ぞれ一本だけ存在する。 Note that the diameter line of the throw-away tip here refers to a straight line that passes through the center of the arc of the circularly formed outer periphery, and the diameter line that passes through the intersection of one wall surface of the notch and the outer periphery is There is only one of each for each chip.
以下、本考案の一実施例を第１図乃至第５図に
基づいて説明する。第１図中１１は丸形スローア
ウエイチツプ（以下チツプという）であり、この
チツプ１１は、外周１２が円形とされ、上面１３
と下面（底面）１４とが平行とされた平板からな
つている。
An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. Reference numeral 11 in FIG. 1 is a round throw-away chip (hereinafter referred to as a chip), and this chip 11 has a circular outer circumference 12 and an upper surface 13.
It consists of a flat plate with a lower surface (bottom surface) 14 parallel to each other.
チツプ１１は、外周１２が第２図に示すように
上面１３と鋭角をなすポジテイブタイプのもので
も下面１４に対し垂直ないわゆるネガテイブタイ
プのものでもよい。 The chip 11 may be of a positive type, in which the outer periphery 12 forms an acute angle with the upper surface 13, as shown in FIG.
チツプ１１の外周１２を３等分する位置には、
当該チツプ１１の上面１３から下面１４に達しか
つ上面１３と直交する方向からの平面視（第１
図、第３図Ａ）において略Ｖ字形をなす切欠き１
５が形成されている。これにより外周１２に３枚
の切刃１６，１７，１８が形成されている。切欠
き１５の一方の壁面１９は、第３図Ａに示すよう
に、上面１３と直交する方向からの平面視におい
て、当該一方の壁面１９と外周１２との交差部２
０から内周側へ向かうに従つて、当該チツプ１１
の前記交差部２０を通過する直径線２１に対して
切欠き１５の他方の壁面２３側へ漸次傾斜する傾
斜面に形成されている。なお、上記直径線２１
は、各切刃１６，１７，１８の円弧中心Ｐを通過
する直線である。 At the position dividing the outer periphery 12 of the chip 11 into three equal parts,
A plan view (first
Notch 1 that is approximately V-shaped in Figure 3A)
5 is formed. As a result, three cutting edges 16, 17, and 18 are formed on the outer periphery 12. As shown in FIG. 3A, one wall surface 19 of the notch 15 is located at the intersection 2 of the one wall surface 19 and the outer periphery 12 in a plan view from a direction perpendicular to the upper surface 13.
As you go from 0 to the inner circumferential side, the chip 11
The notch 15 is formed into an inclined surface that gradually slopes toward the other wall surface 23 side with respect to the diameter line 21 passing through the intersection 20 . In addition, the diameter line 21
is a straight line passing through the arc center P of each cutting edge 16, 17, 18.
また、壁面１９とチツプ１１の上面１３との交
差部は、第２図により詳細に示すように、当該チ
ツプ１１の外周１２側からの側面視において前記
一方の壁面１９及び上面１３と滑らかに連続する
凸曲面２２に形成されている。この凸曲面２２の
形成に当たり、上面１３には切欠き１５の他方の
壁面２３が延長されてなる段部２４が形成されて
いる。壁面２３と外周１２の接線とのなす角は鈍
角とされ、さらに壁面２３と外周１２との交差部
はノーズ２５とされている。なお、２６は取付け
孔である。 Further, as shown in more detail in FIG. 2, the intersection between the wall surface 19 and the upper surface 13 of the chip 11 is smoothly continuous with the one wall surface 19 and the upper surface 13 when viewed from the side from the outer periphery 12 side of the chip 11. It is formed into a convex curved surface 22. In forming this convex curved surface 22, a stepped portion 24 is formed on the upper surface 13 by extending the other wall surface 23 of the notch 15. The angle between the wall surface 23 and the tangent to the outer periphery 12 is an obtuse angle, and the intersection between the wall surface 23 and the outer periphery 12 is a nose 25. Note that 26 is a mounting hole.
次に、第４図及び第５図に基づいてこの考案の
スローアウエイチツプ１１を用いたエンドミルに
ついて説明する。これらの図中３１はチツプポケ
ツト３２を有する工具本体（エンドミル本体）で
あり、チツプポケツト３２にはチツプ座３３が形
成されている。チツプ座３３の所定箇所には突起
部３４が設けられている。 Next, an end mill using the throw-away tip 11 of this invention will be explained based on FIGS. 4 and 5. In these figures, numeral 31 is a tool body (end mill body) having a tip pocket 32, and the tip pocket 32 has a tip seat 33 formed therein. A protrusion 34 is provided at a predetermined location on the chip seat 33.
チツプ１１は、壁面１９，２３を突起部３４に
当接させられ、かつチツプ１１の先端（切削始
点）３５と回転中心軸３６との間隔（回転中心軸
３６とチツプ１１の中心との間隔）Ｅが所定寸法
（チツプ１１の外径に対し18分の１程度が好まし
く、この間隔Ｅが大きくなる程切削性がよい。）
になるように、かつ切削中、第３図Ａに示すよう
に非切削部３７が被削材３８と干渉しないように
チツプ座３３上に配置され、取付け孔２６に嵌入
されたねじによりチツプ座３３に軸方向取付角を
正として取り付けられている。 The chip 11 has its wall surfaces 19, 23 in contact with the projection 34, and the distance between the tip (cutting start point) 35 of the chip 11 and the rotation center axis 36 (the distance between the rotation center axis 36 and the center of the chip 11). E is a predetermined dimension (preferably about 1/18th of the outer diameter of the chip 11, and the larger the distance E, the better the machinability).
During cutting, the non-cutting part 37 is placed on the chip seat 33 so as not to interfere with the workpiece 38 as shown in FIG. 33 with a positive axial angle.
本実施例によれば、工具本体（エンドミル本
体）３１の突起部３４に、壁面１９，２３を当接
させて工具本体３１にチツプ１１を取り付けるこ
とができるので、チツプ１１をその円周方向へ回
そうとする力が加わつても、チツプ１１は安定し
てまわることがなく、断続切削にも十分耐えるこ
とができ、着座性がよい上に操作性が良く、部品
点数も少なくて済む。 According to this embodiment, the tip 11 can be attached to the tool body 31 by bringing the wall surfaces 19 and 23 into contact with the protrusion 34 of the tool body (end mill body) 31, so that the tip 11 can be mounted in the circumferential direction. The tip 11 does not turn stably even when a force is applied to turn it, can sufficiently withstand interrupted cutting, has good seating comfort, is easy to operate, and requires a small number of parts.
また、外周にＶ字形の切欠き１５を設けている
ので、切刃長が短くなり、さらにこの切欠き１５
の一方の壁面１９とチツプ１１の上面３との交差
部が凸曲面２２に形成されているので、切削荷重
が切削の進行に伴つて漸次増大するようになり、
断続切削においても大きな衝撃を一度に受けない
ので、切削性、耐久性が良く、切刃の欠損やチツ
ピングを防止することができる。また、前記凸曲
面２２が形成されているために切削屑の排出性が
大幅に良くなり、切屑の巻込みや当り等による切
削面の悪化及びチツプ１１の欠損やチツピングを
防止することができ、回転中心軸３６とチツプ１
１の中心との間隔Ｅを大きくとることができ、こ
れによりさらに切屑の排出性を良くし切削性能を
向上させることができる。 In addition, since the V-shaped notch 15 is provided on the outer periphery, the length of the cutting edge is shortened, and this notch 15
Since the intersection between one wall surface 19 and the upper surface 3 of the chip 11 is formed into a convex curved surface 22, the cutting load gradually increases as cutting progresses.
Even in interrupted cutting, it does not receive a large impact all at once, so it has good cutting performance and durability, and can prevent chipping and chipping of the cutting edge. In addition, since the convex curved surface 22 is formed, the discharge of cutting chips is greatly improved, and it is possible to prevent deterioration of the cutting surface due to entrainment or collision of chips, and to prevent breakage and chipping of the chip 11. Rotation center shaft 36 and chip 1
The distance E from the center of 1 can be increased, which further improves chip evacuation and cutting performance.
加えて、第３図Ｂに示すように、チツプ１１で
は、切欠き１５の一方の壁面１９が当該壁面１９
と外周１２との交差部２０を通過する直径線２１
に対して傾斜させられているため、当該チツプ１
１の上面１３と直交する方向からの平面視におけ
る各切刃１６，１７，１８の刃先角度、すなわち
刃先位置における接線m1と壁面１９の延長線m2
とがなす角度θが鈍角となつて刃先強度が高い。 In addition, as shown in FIG. 3B, in the chip 11, one wall surface 19 of the notch 15 is
A diameter line 21 passing through the intersection 20 of and the outer periphery 12
Since the chip 1 is tilted relative to
The cutting edge angle of each cutting edge 16, 17, 18 in a plan view from the direction orthogonal to the upper surface 13 of the blade 1, that is, the tangent line m 1 at the cutting edge position and the extension line m 2 of the wall surface 19
The angle θ formed by the two ends is an obtuse angle, and the strength of the cutting edge is high.
しかも、切欠き１５の一方の壁面１９を直径線
２１に対して傾斜させたため、凸曲面２２も当該
壁面１９に沿つて直径線２１から傾斜する。この
ため、第３図Ｃに示すように、凸曲面２２を前記
直径線２１上で上面１３と直交する方向に断面視
した場合の凸曲面２２の稜線H1は、当該チツプ
１の外周側から内周側へと向かうに従つて上面１
３との平行線H2よりもチツプ上面１３の側へ漸
次突出することになる。従つて、切刃１６，１
７，１８の上面１３と直交する断面視における刃
先角度θが、これら切刃１６，１７，１８の上面
１３に沿つて延びる部分よりも凸曲面２２に沿つ
て延びる部分において増大し、特に欠けが発生し
易い切刃先端部の刃先強度が一層高まつている。 Moreover, since one wall surface 19 of the notch 15 is inclined with respect to the diameter line 21, the convex curved surface 22 is also inclined from the diameter line 21 along the wall surface 19. Therefore, as shown in FIG . Top surface 1 toward the inner circumference
It gradually protrudes toward the chip upper surface 13 side from the parallel line H 2 with 3. Therefore, the cutting edge 16,1
The cutting edge angle θ in a cross-sectional view orthogonal to the upper surface 13 of the cutting edges 16, 17, 18 is larger in the portion extending along the convex curved surface 22 than in the portion extending along the upper surface 13 of these cutting edges 16, 17, 18, which particularly prevents chipping. The strength of the edge of the cutting edge, where this is likely to occur, has been further increased.
以上説明したように、本考案によれば、外周が
円形とされた丸形板状のスローアウエイチツプに
おいて、前記外周を３等分する位置に、当該スロ
ーアウエイチツプの上面から下面に達し、かつ、
上面と直交する方向からの平面視において略Ｖ字
形をなす切欠きが形成され、この切欠きの一方の
壁面は、前記平面視において、当該一方の壁面と
外周との交差部から内周側へ向かうに従つて、当
該スローアウエイチツプの前記一方の壁面と外周
との交差部を通過する直径線に対して切欠きの他
方の壁面側へ漸次傾斜する傾斜面に形成され、前
記切欠きの一方の壁面と前記上面との交差部が、
当該スローアウエイチツプの外周側からの側面視
において前記一方の壁面及び前記上面と滑らかに
連続する凸曲面に形成されてなるものであるか
ら、以下のような効果を奏する。
As explained above, according to the present invention, in a circular plate-shaped throw-away chip with a circular outer periphery, the tip reaches from the top surface to the bottom surface of the throw-away chip at a position dividing the outer periphery into three equal parts, and ,
A notch is formed that is approximately V-shaped when viewed in plan from a direction perpendicular to the top surface, and one wall surface of this notch extends from the intersection of the one wall surface and the outer circumference toward the inner circumference side in the plan view. The groove is formed into an inclined surface that gradually slopes toward the other wall surface of the notch with respect to a diameter line passing through the intersection of the one wall surface and the outer periphery of the throwaway chip, and one side of the notch The intersection of the wall surface and the top surface is
Since it is formed into a convex curved surface that smoothly continues with the one wall surface and the upper surface when viewed from the side from the outer circumferential side of the throw-away tip, the following effects are achieved.
まず、工具本体に設けた突起部に前記Ｖ字形の
切欠きの両壁面を当接させて工具本体にスローア
ウエイチツプを取り付けることができ、これによ
りスローアウエイチツプの回り止めをすることが
でき、工具本体へのスローアウエイチツプの着座
性が大幅に良くなり、断続切削に十分耐えること
ができ、操作性が向上し、部品点数も少なくて済
む。 First, the throw-away tip can be attached to the tool body by bringing both walls of the V-shaped notch into contact with the protrusion provided on the tool body, thereby preventing the throw-away tip from rotating. The seating of the throw-away tip on the tool body is greatly improved, it can withstand interrupted cutting, it improves operability, and it requires fewer parts.
また、Ｖ字形の切欠きを設けたので、切刃長が
短くなり、前記凸曲面を形成しているために切削
荷重が切削の進行に伴つて漸次増大するようにな
り、切刃に対して大きな衝撃力が一度にかかるの
を防止することができ、切削性、耐久性が良くな
り、切屑の排出性が大幅に向上し、切屑の巻込み
や当たりによる切削面の悪化を防ぐことができ、
これによりさらに切削性能を向上させることがで
き、従来特に多かつたスローアウエイチツプの欠
損やチツピングを確実に防止することができる。 In addition, since the V-shaped notch is provided, the length of the cutting edge is shortened, and since the convex curved surface is formed, the cutting load gradually increases as cutting progresses, and It can prevent large impact forces from being applied all at once, improving machinability and durability, greatly improving chip evacuation, and preventing deterioration of the cut surface due to chip entrainment or contact. ,
As a result, cutting performance can be further improved, and breakage and chipping of the throw-away tip, which were particularly common in the past, can be reliably prevented.
さらに、切欠きの一方の壁面を傾斜面としたた
め、各切刃のチツプ上面側からの平面視における
刃先角度が鈍角となつて刃先強度が高まるととも
に、各切刃の凸曲面に沿う部分のチツプ上面と直
交する断面視における刃先角度が大きくなつて刃
先強度が一層高くなり、この結果、特に刃先部分
における切刃の欠損を一層確実に防止してチツプ
寿命を大きく向上させることができる。 Furthermore, since one wall surface of the notch is made into an inclined surface, the cutting edge angle of each cutting edge when viewed in plan from the top surface of the chip becomes an obtuse angle, increasing the strength of the cutting edge. The angle of the cutting edge in a cross-sectional view perpendicular to the upper surface is increased, and the strength of the cutting edge is further increased.As a result, breakage of the cutting edge, especially at the cutting edge portion, can be more reliably prevented and the life of the chip can be greatly improved.
第１図は本考案の一実施例を示す正面図、第２
図はその側面図、第３図Ａはその切削中のスロー
アウエイチツプと被削材との位置関係を示す図、
同図Ｂはスローアウエイチツプの刃先部分の拡大
図、同図Ｃは同図Ｂの直径線２１に沿う断面図、
第４図は本考案のスローアウエイチツプをエンド
ミル本体に取り付けた状態を示す正面図、第５図
は第４図の側面図、第６図は従来のスローアウエ
イチツプをエンドミル本体に取り付けた状態を示
す正面図、第７図は第６図の側面図、第８図は従
来の丸形スローアウエイチツプの正面図、第９図
は従来の丸形スローアウエイチツプの側面図であ
る。
１２……外周、１３……上面、１４……下面
（底面）、１５……切欠き、１９……一方の壁面、
２０……一方の壁面と外周との交差部、２１……
直径線、２２……凸曲面、２３……他方の壁面。
Figure 1 is a front view showing one embodiment of the present invention;
The figure is a side view, and Figure 3A is a diagram showing the positional relationship between the throw-away tip and the workpiece during cutting.
Figure B is an enlarged view of the cutting edge of the throw-away tip, Figure C is a sectional view taken along the diameter line 21 of Figure B,
Figure 4 is a front view showing the throw-away tip of the present invention attached to the end mill body, Figure 5 is a side view of Figure 4, and Figure 6 is the conventional throw-away tip attached to the end mill body. 7 is a side view of FIG. 6, FIG. 8 is a front view of a conventional round throw-away tip, and FIG. 9 is a side view of a conventional round throw-away tip. 12...Outer circumference, 13...Top surface, 14...Bottom surface (bottom surface), 15...Notch, 19...One wall surface,
20... Intersection between one wall surface and the outer periphery, 21...
Diameter line, 22... convex curved surface, 23... other wall surface.
Claims (1)
アウエイチツプ１１において、 前記外周１２を３等分する位置に、当該スロー
アウエイチツプ１１の上面１３から下面１４に達
し、かつ、上面１３と直交する方向からの平面視
において略Ｖ字形をなす切欠き１５が形成され、 この切欠き１５の一方の壁面１９は、前記平面
視において、当該一方の壁面１９と外周１２との
交差部２０から内周側へ向かうに従つて、当該ス
ローアウエイチツプ１１の前記一方の壁面１９と
外周１２との交差部２０を通過する直径線２１に
対して切欠き１５の他方の壁面２３側へ漸次傾斜
する傾斜面に形成され、 前記切欠き１５の一方の壁面１９と前記上面１
３との交差部が、当該スローアウエイチツプ１１
の外周１２側からの側面視において前記一方の壁
面１９及び前記上面１３と滑らかに連続する凸曲
面２２に形成されたことを特徴とするスローアウ
エイチツプ。[Claims for Utility Model Registration] In a throw-away chip 11 having a round plate shape with a circular outer periphery 12, from the upper surface 13 to the lower surface 14 of the throw-away chip 11, the outer periphery 12 is divided into three equal parts. A notch 15 is formed which extends to the top and has a substantially V-shape when viewed in plan from a direction perpendicular to the upper surface 13, and one wall surface 19 of this notch 15 is connected to the outer periphery of the other wall surface 19 in the plan view. 12, the other side of the notch 15 is connected to the diameter line 21 passing through the intersection 20 between the one wall surface 19 and the outer periphery 12 of the throwaway chip 11. It is formed into an inclined surface that gradually slopes toward the wall surface 23 side, and is formed on one wall surface 19 of the notch 15 and the upper surface 1.
The intersection with 3 is the throwaway tip 11
1. A throw-away chip characterized in that it is formed into a convex curved surface 22 that smoothly continues with the one wall surface 19 and the upper surface 13 when viewed from the side from the outer periphery 12 side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985098986U JPH0418724Y2 (en) | 1985-06-28 | 1985-06-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985098986U JPH0418724Y2 (en) | 1985-06-28 | 1985-06-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS628020U JPS628020U (en) | 1987-01-19 |
| JPH0418724Y2 true JPH0418724Y2 (en) | 1992-04-27 |
Family
ID=30967451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985098986U Expired JPH0418724Y2 (en) | 1985-06-28 | 1985-06-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0418724Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5841062U (en) * | 1981-09-11 | 1983-03-18 | 株式会社荏原製作所 | Three-phase motor with anti-phase display device |
| JPS58181502A (en) * | 1982-04-01 | 1983-10-24 | サントレイド・リミテイド | Cutting inserted tooth |
-
1985
- 1985-06-28 JP JP1985098986U patent/JPH0418724Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5841062U (en) * | 1981-09-11 | 1983-03-18 | 株式会社荏原製作所 | Three-phase motor with anti-phase display device |
| JPS58181502A (en) * | 1982-04-01 | 1983-10-24 | サントレイド・リミテイド | Cutting inserted tooth |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS628020U (en) | 1987-01-19 |
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