JPH0570807U - Cutting tools - Google Patents

Cutting tools

Info

Publication number
JPH0570807U
JPH0570807U JP008880U JP888091U JPH0570807U JP H0570807 U JPH0570807 U JP H0570807U JP 008880 U JP008880 U JP 008880U JP 888091 U JP888091 U JP 888091U JP H0570807 U JPH0570807 U JP H0570807U
Authority
JP
Japan
Prior art keywords
chip
tip
seating portion
cutting tool
sheet member
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.)
Pending
Application number
JP008880U
Other languages
Japanese (ja)
Inventor
正彰 中山
昌之 大川
淳一 斉藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Materials Corp
Original Assignee
Mitsubishi Materials Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Materials Corp filed Critical Mitsubishi Materials Corp
Priority to JP008880U priority Critical patent/JPH0570807U/en
Priority to KR2019910022299U priority patent/KR970004066Y1/en
Priority to US07/840,086 priority patent/US5193945A/en
Priority to EP92103157A priority patent/EP0501410B1/en
Priority to DE69203890T priority patent/DE69203890T2/en
Publication of JPH0570807U publication Critical patent/JPH0570807U/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B23B27/1603—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with specially shaped plate-like exchangeable cutting inserts, e.g. chip-breaking groove
    • B23B27/1607—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with specially shaped plate-like exchangeable cutting inserts, e.g. chip-breaking groove characterised by having chip-breakers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B23B27/1666—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts clamped by a clamping member acting almost perpendicularly on chip-forming plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/32—Chip breaking or chip evacuation
    • B23B2200/323—Chip breaking or chip evacuation by chip breaking depressions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2205/00—Fixation of cutting inserts in holders
    • B23B2205/12—Seats for cutting inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

(57)【要約】 【目的】 チップシートの改良により、工具本体の損耗
を防止するとともに、ビビリ振動の発生を防止し、チッ
プの欠損等を未然に防止する。 【構成】 工具本体２０のチップ着座部２１にシート部
材２２を介してスローアウエイチップ２３を装着した切
削工具において、シート部材２２をチップ着座部２１の
壁部よりも硬度が低い材質とし、かつ、チップ２３とほ
ぼ同じ平面形状とした。 (57) [Abstract] [Purpose] By improving the tip sheet, wear of the tool body is prevented, chatter vibration is prevented from occurring, and tips are prevented from being damaged. In a cutting tool in which a throwaway tip 23 is mounted on a tip seating portion 21 of a tool body 20 via a seat member 22, the seat member 22 is made of a material having a hardness lower than that of a wall of the tip seating portion 21, and The chip 23 has the same plane shape as that of the chip 23.

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

この考案は、バイト、フライスなどのスローアウエイ式切削工具に係わり、特 に、すくい面にチップブレーカー溝を形成した切削工具に関するものである。 The present invention relates to a throwaway type cutting tool such as a bite and a milling cutter, and particularly to a cutting tool having a chip breaker groove formed on a rake face.

【０００２】[0002]

【従来の技術】[Prior Art]

従来、上記のような切削工具として、図６に示すようなレバーロック式のバイ トが知られている。この図に示すバイトは、工具本体１の先端部にチップ着座部 ２を形成するとともに、Ｌ字状に屈曲したクランプレバー３と、このクランプレ バー３をその屈曲部を支点として回転させるクランプネジ４を取り付け、クラン プレバー３の頭部５とチップ６の孔７とを係合させることにより、チップ６をシ ート部材８を介してチップ着座部２に押圧固定するようになっている。 また、図７に示すものはクランプオン式のバイトであり、このバイトは、工具 本体１０の先端部にチップ着座部１１を形成するとともに、このチップ着座部１ １にシート部材１２をネジ１３により取り付け、シート部材１２上に載置したチ ップ１４をクランプ駒１５及びクランプネジ１６で押圧固定するようになってい いる。 Conventionally, as a cutting tool as described above, a lever lock type bit as shown in FIG. 6 has been known. The tool shown in this figure has a tip seat 2 formed at the tip of the tool body 1, a clamp lever 3 bent in an L shape, and a clamp screw 4 for rotating the clamp lever 3 with the bent portion as a fulcrum. Is attached and the head 5 of the clamp lever 3 and the hole 7 of the chip 6 are engaged with each other, whereby the chip 6 is pressed and fixed to the chip seating portion 2 via the sheet member 8. Further, what is shown in FIG. 7 is a clamp-on type bite, which forms a chip seating portion 11 at the tip of the tool body 10 and a seat member 12 is screwed to the chip seating portion 11 by a screw 13. The chip 14 mounted and mounted on the sheet member 12 is pressed and fixed by a clamp piece 15 and a clamp screw 16.

【０００３】 ここで、上記いずれのバイトにおいても、シート部材８，１２は、チップ６， １４よりも硬度が低く、しかも、チップ着座部２，１１を構成する壁部の材質よ りも硬度が高い超硬合金または高速度鋼等の高硬度材で構成された消耗工具の一 種であり、自らが摩耗したりへたったりすることで工具本体１，１０の損耗を防 止するようになっている。Here, in any of the above-mentioned cutting tools, the sheet members 8 and 12 have lower hardness than the tips 6 and 14, and moreover, the hardness is higher than that of the material of the wall portions forming the tip seating portions 2 and 11. It is a type of consumable tool made of high hardness material such as high cemented carbide or high speed steel. It prevents wear of tool bodies 1 and 10 due to wear and sag of itself. ing.

【０００４】[0004]

【考案が解決しようとする課題】[Problems to be solved by the device]

しかしながら、上記構成のバイトにおいては、シート部材が超硬合金等の柔軟 性のない材料で構成されているため、切削加工中にチップに作用する振動がシー ト部材に伝わり易い。このため、激しい振動、例えばビビリ振動が発生したとき などはシート部材も激しく振動し、この結果、チップが欠損し易くなってしまう という問題があった。特に、チップのすくい面となる上下面にチップブレーカー 溝が形成されているような場合には、チップの着座面積が小さいため、さらにチ ップが振動し易くなり、チップが一層欠損し易くなるという問題があった。 本考案は、従来の切削工具がもつ上記問題点を解決するためになされたもので 、 チップと接触することによる工具本体の損耗を防止することができるのは勿論の こと、ビビリ振動の発生を防止し、チップの欠損等を未然に防止することができ る切削工具を提供することを目的としている。 However, in the bite having the above structure, since the sheet member is made of a non-flexible material such as cemented carbide, vibration acting on the chip during cutting is easily transmitted to the sheet member. For this reason, when violent vibration, such as chatter vibration, occurs, the sheet member also vibrates violently, and as a result, there is a problem that the chip is easily damaged. Especially when the chip breaker groove is formed on the upper and lower surfaces that are the rake face of the chip, the chip seating area is small and the chip is more likely to vibrate and the chip is more likely to be damaged. There was a problem. The present invention has been made in order to solve the above-mentioned problems of the conventional cutting tool, and it is possible to prevent wear of the tool body due to contact with the tip, and to prevent chatter vibration from occurring. It is an object of the present invention to provide a cutting tool capable of preventing chipping of chips and preventing chipping.

【０００５】[0005]

【課題を解決するための手段】[Means for Solving the Problems]

本考案の切削工具は、シート部材をチップ着座部の壁部よりも硬度が低い材質 とし、かつ、チップとほぼ同じ平面形状としたものである。また、シート部材と チップ着座部との間に、チップ着座部を構成する壁部の材質よりも硬度が高い第 ２のシート部材を設けたものでもある。 In the cutting tool of the present invention, the seat member is made of a material having a hardness lower than that of the wall of the chip seating portion, and has the same plane shape as the chip. Further, a second sheet member having a hardness higher than that of the material of the wall portion forming the chip seating portion is provided between the seat member and the chip seating portion.

【０００６】[0006]

【実施例】【Example】

以下、この考案の一実施例を図１ないし図５を参照しながら説明する。図１は 実施例のバイトを示す側面図である。この図に示すバイトは、工具本体２０の先 端部にチップ着座部２１が形成され、このチップ着座部２１に、シート部材２２ を介してチップ２３が載置されるとともに、これらシート部材２２及びチップ２ ３がクランプ駒２４およびクランプネジ２５によってチップ着座部２１に押圧固 定されたものである。また、チップ２３は、図２及び図３に示すように、平面視 正方形状をなし、すくい面とされる上下面の稜線部には切刃２６が形成されると ともに、切刃２６に沿う所定範囲の部分にはチップブレーカー溝２７が形成され ている。そして、チップブレーカー溝２７よりも中央側の部分が上記チップ着座 部２１上に載置される着座面２８とされている（図中ハッチングで示す）。以上 の点については前記図７のものとほぼ同様である。 しかしながら、シート部材２２は、チップ２３側とチップ着座部２１側とで材 質が異なる２層構造とされている。すなわち、チップ２３側の第１の層２２ａは 、銅、アルミニウム等の軟質金属で構成され、チップ着座部２１側の第２の層２ ２ｂは超硬合金または高速度鋼等の高硬度材で構成されている。さらに、第１の 層２２ａの厚さは第２の層２２ｂよりも薄く設定されている。なお、第１、第２ の層２２ａ，２２ｂの平面形状はチップ２３のものと同じにされている。 An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a side view showing a cutting tool according to an embodiment. In the bite shown in this figure, a tip seating portion 21 is formed on the front end portion of the tool body 20, and a tip 23 is placed on the tip seating portion 21 via a sheet member 22 and the seat member 22 and The chip 23 is pressed and fixed to the chip seating portion 21 by the clamp piece 24 and the clamp screw 25. Further, as shown in FIGS. 2 and 3, the tip 23 has a square shape in a plan view, and a cutting edge 26 is formed on the ridge line portion of the upper and lower surfaces, which are rake surfaces, and along the cutting edge 26. A chip breaker groove 27 is formed in a predetermined area. A portion closer to the center than the chip breaker groove 27 is a seating surface 28 that is placed on the chip seating portion 21 (shown by hatching in the figure). The above points are almost the same as those in FIG. However, the seat member 22 has a two-layer structure in which the material is different between the chip 23 side and the chip seating portion 21 side. That is, the first layer 22a on the chip 23 side is made of a soft metal such as copper or aluminum, and the second layer 22b on the chip seating portion 21 side is a high hardness material such as cemented carbide or high speed steel. It is configured. Further, the thickness of the first layer 22a is set thinner than that of the second layer 22b. The planar shapes of the first and second layers 22a and 22b are the same as those of the chip 23.

【０００７】 上記構成の切削工具においては、使用しているうちにシート部材２２の第１の 蚤２２ａの上面が塑性変形し、図５に示すように、チップ２３の下面形状になじ んでくる。このため、チップ２３の着座面積が大きく着座安定性が大幅に向上す る。つまり、シート部材２２の第１の層２２ａが存在しない場合には、図４に示 すように、チップブレーカー溝の部分でシート部材２２ｂと空間が生じており、 オーバーハング量Ｌ1が大きくなってしまうが、上記構成の切削工具では、オー バーハング量Ｌ2を比較にならない程小さくすることができるのである。しかも 、チップ２３に作用する振動や衝撃が第１の層２２ａが弾性変形あるいは塑性変 形することにより吸収され、これによって、チップ２３の振動を消滅させること ができる。したがって、チップ２３の振動、特にビビリ振動を確実に防止するこ とができ、チップ２３の欠損等を防止することができる。In the cutting tool having the above-described configuration, the upper surface of the first flea 22a of the sheet member 22 is plastically deformed during use and conforms to the lower surface shape of the tip 23 as shown in FIG. Therefore, the seating area of the tip 23 is large and seating stability is greatly improved. That is, when the first layer 22a of the sheet member 22 does not exist, as shown in FIG. 4, a space is formed between the sheet member 22b and the chip breaker groove, and the overhang amount L 1 becomes large. However, in the cutting tool having the above configuration, the overhang amount L 2 can be made so small that it cannot be compared. Moreover, the vibrations and shocks acting on the chip 23 are absorbed by the elastic deformation or plastic deformation of the first layer 22a, whereby the vibration of the chip 23 can be eliminated. Therefore, it is possible to reliably prevent the vibration of the chip 23, especially the chatter vibration, and prevent the chip 23 from being damaged.

【０００８】 なお、上記実施例では、第１の層２２ａの厚さを第２の層２２ｂよりも薄くし ているが、第１の層２２ａの方を厚くすることにより、衝撃力をより効果的に吸 収できるようになる。また、第１、第２の層を同一厚さとしてもよい。また、本 考案は、上記のようなバイトに限定されるものではなく、スローアウエイチップ を使用するあらゆる種類の切削工具に適用することができる。さらに、シート部 材を２層構造としているが、３層以上の構造としてもよく、各層を互いに固着し てシート部材を一体化してもよい。 また、上記実施例では、第１の層の材質を銅またはアルミニウムとしているが 、錫などの他の軟質材を使用してもよい。この場合、第１の層の硬さは４〜４５ ＨBであることが望ましい。In the above embodiment, the thickness of the first layer 22a is smaller than that of the second layer 22b. However, by making the first layer 22a thicker, the impact force is more effective. Can be absorbed. Further, the first and second layers may have the same thickness. Further, the present invention is not limited to the above-mentioned cutting tool, and can be applied to all kinds of cutting tools using a throwaway tip. Further, although the sheet member has a two-layer structure, it may have a structure of three or more layers, or the layers may be fixed to each other to integrate the sheet member. Further, in the above embodiment, the material of the first layer is copper or aluminum, but other soft material such as tin may be used. In this case, it is desirable that the hardness of the first layer is 4 to 45 H B.

【００１０】[0010]

【考案の効果】[Effect of the device]

以上説明したように、本考案によれば、シート部材をチップ着座部の壁部より も硬度が低い材質とし、かつ、チップとほぼ同じ平面形状としたものであるから 、ビビリ振動の発生を防止し、チップの欠損等を未然に防止することができる等 の効果を得ることができる。 As described above, according to the present invention, the seat member is made of a material having a hardness lower than that of the wall portion of the seating portion of the chip, and has the same planar shape as that of the chip, so that chatter vibration is prevented from occurring. However, it is possible to obtain effects such as prevention of chip defects and the like.

【図面の簡単な説明】[Brief description of drawings]

【図１】本考案の実施例のバイトを示す側面図である。FIG. 1 is a side view showing a cutting tool according to an embodiment of the present invention.

【図２】本考案の実施例のバイトに使用されるチップを
示す平面図である。FIG. 2 is a plan view showing a chip used in a cutting tool according to an embodiment of the present invention.

【図３】本考案の実施例のバイトに使用されるチップの
他の例を示す平面図である。FIG. 3 is a plan view showing another example of a chip used for a cutting tool according to an embodiment of the present invention.

【図４】従来のバイトの場合のチップのオーバーハング
を説明するための側面図である。FIG. 4 is a side view for explaining a chip overhang in the case of a conventional bite.

【図５】本考案の実施例におけるチップのオーバーハン
グを説明するための側面図である。FIG. 5 is a side view illustrating an overhang of a chip according to an embodiment of the present invention.

【図６】従来のバイトを示す側面図である。FIG. 6 is a side view showing a conventional cutting tool.

【図７】従来のバイトの他の例を示す側面図である。FIG. 7 is a side view showing another example of a conventional cutting tool.

【符号の説明】[Explanation of symbols]

２０ 工具本体 ２１ チップ着座部 ２２ シート部材 ２３ スローアウエイチップ 20 Tool Body 21 Tip Seating Part 22 Seat Member 23 Throwaway Tip

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】 工具本体のチップ着座部にシート部材を
介してスローアウエイチップが装着され、上記スローア
ウエイチップのすくい面とされる上下面にチップブレー
カー溝が設けられた切削工具において、上記シート部材
を上記チップ着座部の壁部よりも硬度が低い材質とし、
かつ、上記スローアウエイチップとほぼ同じ平面形状と
したことを特徴とする切削工具。1. A cutting tool in which a throwaway tip is mounted on a chip seating portion of a tool body via a sheet member, and chip breaker grooves are provided on upper and lower surfaces of the throwaway tip which are rake surfaces. The member is made of a material having a hardness lower than that of the wall portion of the chip seating portion,
Moreover, a cutting tool having the same planar shape as the above-mentioned throwaway tip. 【請求項２】 前記シート部材とチップ着座部との間
に、前記チップ着座部を構成する壁部の材質よりも硬度
が高い第２のシート部材を設けたことを特徴とする切削
工具。2. A cutting tool characterized in that a second sheet member having a hardness higher than that of a material of a wall portion forming the tip seating portion is provided between the sheet member and the tip seating portion.
JP008880U 1991-02-25 1991-02-25 Cutting tools Pending JPH0570807U (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP008880U JPH0570807U (en) 1991-02-25 1991-02-25 Cutting tools
KR2019910022299U KR970004066Y1 (en) 1991-02-25 1991-12-14 Cutting tool
US07/840,086 US5193945A (en) 1991-02-25 1992-02-24 Cutting tool
EP92103157A EP0501410B1 (en) 1991-02-25 1992-02-25 Cutting tool
DE69203890T DE69203890T2 (en) 1991-02-25 1992-02-25 Cutting tool.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP008880U JPH0570807U (en) 1991-02-25 1991-02-25 Cutting tools

Publications (1)

Publication Number Publication Date
JPH0570807U true JPH0570807U (en) 1993-09-24

Family

ID=11704991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP008880U Pending JPH0570807U (en) 1991-02-25 1991-02-25 Cutting tools

Country Status (2)

Country Link
JP (1) JPH0570807U (en)
KR (1) KR970004066Y1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003001518A (en) * 2001-06-21 2003-01-08 Sumitomo Titanium Corp Cutting-off blade and cutting-off method for push cutting press
JP2004202649A (en) * 2002-12-26 2004-07-22 Sumitomo Electric Ind Ltd Cutting tool
JP2009533235A (en) * 2006-04-10 2009-09-17 ウォルター アーゲー Support plate for cutting blades that can be exchanged on both sides
JPWO2009028679A1 (en) * 2007-08-30 2010-12-02 京セラ株式会社 Cutting tool and cutting method
JP2019508276A (en) * 2016-02-12 2019-03-28 プラスマトリックス マテリアルズ アクティエボラーグ Cutting tool assembly with controlled elasticity using superelastic material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6135362U (en) * 1984-08-07 1986-03-04 伊勢電子工業株式会社 fluorescent display tube
JPS6331845U (en) * 1986-08-19 1988-03-01
JPS6344704B2 (en) * 1982-03-13 1988-09-06 Kobe Steel Ltd

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6344704B2 (en) * 1982-03-13 1988-09-06 Kobe Steel Ltd
JPS6135362U (en) * 1984-08-07 1986-03-04 伊勢電子工業株式会社 fluorescent display tube
JPS6331845U (en) * 1986-08-19 1988-03-01

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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JP2004202649A (en) * 2002-12-26 2004-07-22 Sumitomo Electric Ind Ltd Cutting tool
JP2009533235A (en) * 2006-04-10 2009-09-17 ウォルター アーゲー Support plate for cutting blades that can be exchanged on both sides
JPWO2009028679A1 (en) * 2007-08-30 2010-12-02 京セラ株式会社 Cutting tool and cutting method
JP4603622B2 (en) * 2007-08-30 2010-12-22 京セラ株式会社 Cutting tool and cutting method
JP2019508276A (en) * 2016-02-12 2019-03-28 プラスマトリックス マテリアルズ アクティエボラーグ Cutting tool assembly with controlled elasticity using superelastic material

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