JP6562229B1 - 切削インサートと該切削インサートを備えたホルダおよび切削工具 - Google Patents
切削インサートと該切削インサートを備えたホルダおよび切削工具 Download PDFInfo
- Publication number
- JP6562229B1 JP6562229B1 JP2018047637A JP2018047637A JP6562229B1 JP 6562229 B1 JP6562229 B1 JP 6562229B1 JP 2018047637 A JP2018047637 A JP 2018047637A JP 2018047637 A JP2018047637 A JP 2018047637A JP 6562229 B1 JP6562229 B1 JP 6562229B1
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- insert
- cutting edge
- cutting insert
- rake face
- 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.)
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- 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
- B23B27/1614—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 of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert
- B23B27/1618—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 of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert 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
- B23B27/141—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness
- B23B27/145—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness characterised by having a special shape
-
- 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
- B23B27/007—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor for internal turning
-
- 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
- B23B27/1614—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 of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert
- B23B27/1622—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 of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert characterised by having a special shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/02—Boring bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/0466—Drills for trepanning with exchangeable cutting inserts, e.g. able to be clamped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/04—Overall shape
- B23B2200/0447—Parallelogram
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/20—Top or side views of the cutting edge
- B23B2200/201—Details of the nose radius and immediately surrounding area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/20—Top or side views of the cutting edge
- B23B2200/204—Top or side views of the cutting edge with discontinuous cutting edge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/28—Angles
- B23B2200/286—Positive cutting angles
-
- 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
- B23B2200/321—Chip breaking or chip evacuation by chip breaking projections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/36—Other features of cutting inserts not covered by B23B2200/04 - B23B2200/32
- B23B2200/3618—Fixation holes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2205/00—Fixation of cutting inserts in holders
- B23B2205/04—Fixation screws, bolts or pins of particular form
- B23B2205/045—Fixation screws, bolts or pins of particular form orientated obliquely to the hole in the insert or to the seating surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/50—Drilling tools comprising cutting inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/0002—Drills with connected cutting heads, e.g. with non-exchangeable cutting heads; Drills with a single insert extending across the rotational axis and having at least two radially extending cutting edges in the working position
Abstract
Description
表面および裏面の外郭形状が平行四辺形状であるインサート本体と、
該インサート本体の四辺に配置された周側面と、
前記インサート本体の表面および裏面と前記周側面とのそれぞれの交差稜線に設けられた切れ刃と、
前記表面と前記裏面に対し傾斜して前記インサート本体に設けられている、取付に利用可能な穴と、
を備える、切削インサートである。
(i) 旋削におけるポジインサートは厚くすると、逃げ面が有する角度(逃げ角)分だけ、切削コーナから支持面が後退する。
(ii) 従来の多くの穴あけ工具は、中心刃と外周刃で二つのインサートを使用し,中心刃側は芯下がり(工具中心より切れ刃が低い)、外周刃側は芯上がり(工具中心より切れ刃が高い)の方が耐欠損性の面で好ましい。
(iii) 本態様の多機能工具においてインサートを2つ使用すると、旋削加工時、単機能工具に比較して工具本体の剛性が極端に下がる。このためインサートは一つの切れ刃上に中心刃、外周刃を搭載する必要が有る。
(iv) 一つの切れ刃上で上記(ii)を満たすためには、工具搭載時に工具中心に向かって切れ刃の高さを低くする必要が有り、インサートは工具外側に向かうほど、切れ刃が高くなるように傾斜することが好ましい。
(v)上記(iv)の切れ刃を有するインサートは中心刃側で十分な厚みを有する必要が有るが、十分な厚みをポジインサートに付与すると穴周りが薄くなる。
本発明の第1実施形態に係る切削インサート10は、一つの切削工具で穴あけ加工と旋削加工の両方に用いられるインサートであり、インサート本体11に設けられた切れ刃22、穴28などを備えている(図1等参照)。
Claims (6)
- 穴あけ加工と旋削加工の両方に用いられる切削インサートであって、
表面および裏面の外郭形状が平行四辺形状であるインサート本体と、
該インサート本体の四辺に配置された周側面と、
前記インサート本体の表面および裏面と前記周側面とのそれぞれの交差稜線に設けられた切れ刃と、
前記表面と前記裏面に対し傾斜して前記インサート本体に設けられている、取付に利用可能な穴と、
を備え、
対向する前記周側面が互いに平行な面であり、
前記表面と前記裏面に対し傾斜した前記穴の軸線が、前記周側面のいずれに対しても平行である、切削インサート。 - 前記切れ刃が、前記インサート本体の中央の位置を中心に点対称に配置されている、請求項1に記載の切削インサート。
- 前記インサート本体の前記表面と裏面のそれぞれに設けられた円弧状の切れ刃の中心を通る垂直断面にて、前記表面または裏面と前記周側面とがなす角が76〜85°である、請求項2に記載の切削インサート。
- 前記切れ刃は、前記インサート本体の前記表面と裏面のそれぞれに設けられた切れ刃の中心を通る当該インサート本体の垂直断面に対する垂直視にて、前記表面または裏面に対して3〜15°の角度をなす、請求項2または3に記載の切削インサート。
- 前記表面に垂直な平面視または前記裏面に垂直な底面視にて、少なくとも2辺が前記切れ刃として機能する形状である、請求項1から4のいずれか一項に記載の切削インサート。
- 請求項1から5のいずれか一項に記載の切削インサートを備えた切削工具。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018047637A JP6562229B1 (ja) | 2018-03-15 | 2018-03-15 | 切削インサートと該切削インサートを備えたホルダおよび切削工具 |
EP19162454.3A EP3539698A1 (en) | 2018-03-15 | 2019-03-13 | Cutting insert, holder, and cutting tool that includes cutting insert |
US16/353,826 US11298749B2 (en) | 2018-03-15 | 2019-03-14 | Cutting insert, holder, and cutting tool that includes cutting insert |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018047637A JP6562229B1 (ja) | 2018-03-15 | 2018-03-15 | 切削インサートと該切削インサートを備えたホルダおよび切削工具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP6562229B1 true JP6562229B1 (ja) | 2019-08-21 |
JP2019155559A JP2019155559A (ja) | 2019-09-19 |
Family
ID=65801958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018047637A Active JP6562229B1 (ja) | 2018-03-15 | 2018-03-15 | 切削インサートと該切削インサートを備えたホルダおよび切削工具 |
Country Status (3)
Country | Link |
---|---|
US (1) | US11298749B2 (ja) |
EP (1) | EP3539698A1 (ja) |
JP (1) | JP6562229B1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10882115B2 (en) * | 2013-06-27 | 2021-01-05 | No Screw Ltd. | Cutting insert with internal cooling, mold and method for manufacture thereof |
CN114650892A (zh) * | 2019-11-13 | 2022-06-21 | 京瓷株式会社 | 切削刀片、切削工具以及切削加工物的制造方法 |
Family Cites Families (16)
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SE394606B (sv) * | 1972-10-18 | 1977-07-04 | Hertel K | Skerverktyg for spanavskiljande metallbearbetning |
US4312250A (en) * | 1980-01-16 | 1982-01-26 | Yankoff Gerald K | Cutting insert and method of machining therewith |
JP4056020B2 (ja) | 1997-06-12 | 2008-03-05 | 株式会社タンガロイ | スローアウェイ式エンドミル |
US8287213B2 (en) * | 2006-02-16 | 2012-10-16 | Remark Technologies, Inc. | Indexable cutting tool insert for cutting tools |
KR101083853B1 (ko) | 2009-02-09 | 2011-11-15 | 대구텍 유한회사 | 드릴링 가공 및 선삭 가공이 가능한 절삭 공구 |
KR101067161B1 (ko) | 2010-01-06 | 2011-09-22 | 대구텍 유한회사 | 내경 그루브 가공용 절삭 인서트 및 그를 위한 툴홀더 |
JP5853613B2 (ja) * | 2010-11-15 | 2016-02-09 | 三菱マテリアル株式会社 | 切削インサート |
JP5750741B2 (ja) | 2011-04-28 | 2015-07-22 | 三菱日立ツール株式会社 | 刃先交換式ラジアスエンドミル |
KR20130081912A (ko) * | 2012-01-10 | 2013-07-18 | 대구텍 유한회사 | 절삭인서트, 공구본체 및 이들을 구비하는 절삭공구 조립체 |
US8814480B2 (en) * | 2012-04-17 | 2014-08-26 | Iscar, Ltd. | Cutting insert chip-control arrangement |
US9776259B2 (en) | 2013-03-19 | 2017-10-03 | Tungaloy Corporation | Cutting insert and indexable cutting tool |
JP5740673B2 (ja) * | 2013-05-10 | 2015-06-24 | 住友電工ハードメタル株式会社 | cBN切削工具 |
US10046396B2 (en) * | 2013-09-30 | 2018-08-14 | Kyocera Corporation | Cutting insert, cutting tool, and method for manufacturing machined product |
KR20160133419A (ko) * | 2014-03-17 | 2016-11-22 | 스미또모 덴꼬오 하드메탈 가부시끼가이샤 | 절삭 인서트 |
JP2016052709A (ja) | 2014-09-04 | 2016-04-14 | 三菱マテリアル株式会社 | 切削インサート |
US20170320142A1 (en) * | 2016-05-06 | 2017-11-09 | Jakob Lach Gmbh & Co. Kg | Cutting tool with chip breaker as well as manufacturing process for production of this cutting tool |
-
2018
- 2018-03-15 JP JP2018047637A patent/JP6562229B1/ja active Active
-
2019
- 2019-03-13 EP EP19162454.3A patent/EP3539698A1/en active Pending
- 2019-03-14 US US16/353,826 patent/US11298749B2/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10882115B2 (en) * | 2013-06-27 | 2021-01-05 | No Screw Ltd. | Cutting insert with internal cooling, mold and method for manufacture thereof |
US11453062B2 (en) | 2013-06-27 | 2022-09-27 | No Screw Ltd. | Cutting insert with internal cooling, mold and method for manufacture thereof |
CN114650892A (zh) * | 2019-11-13 | 2022-06-21 | 京瓷株式会社 | 切削刀片、切削工具以及切削加工物的制造方法 |
Also Published As
Publication number | Publication date |
---|---|
US11298749B2 (en) | 2022-04-12 |
JP2019155559A (ja) | 2019-09-19 |
US20190283142A1 (en) | 2019-09-19 |
EP3539698A1 (en) | 2019-09-18 |
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