JP2010253632A - Cutting insert and cutting tool, and method of manufacturing workpiece to be cut using cutting insert and cutting tool - Google Patents

Cutting insert and cutting tool, and method of manufacturing workpiece to be cut using cutting insert and cutting tool Download PDF

Info

Publication number
JP2010253632A
JP2010253632A JP2009107910A JP2009107910A JP2010253632A JP 2010253632 A JP2010253632 A JP 2010253632A JP 2009107910 A JP2009107910 A JP 2009107910A JP 2009107910 A JP2009107910 A JP 2009107910A JP 2010253632 A JP2010253632 A JP 2010253632A
Authority
JP
Japan
Prior art keywords
cutting
insert
mounting screw
screw contact
cutting insert
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.)
Granted
Application number
JP2009107910A
Other languages
Japanese (ja)
Other versions
JP5334668B2 (en
Inventor
Eiha Jo
永波 徐
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.)
Kyocera Corp
Original Assignee
Kyocera 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 Kyocera Corp filed Critical Kyocera Corp
Priority to JP2009107910A priority Critical patent/JP5334668B2/en
Publication of JP2010253632A publication Critical patent/JP2010253632A/en
Application granted granted Critical
Publication of JP5334668B2 publication Critical patent/JP5334668B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/36—Other features of the milling insert not covered by B23C2200/04 - B23C2200/32
    • B23C2200/361—Fixation holes

Landscapes

  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting insert having excellent restraining property and an excellent machining surface of a machined workpiece to be cut. <P>SOLUTION: This cutting insert include a substantially polygonal flat plate shaped body. In the body, a cutting blade formed in an intersecting ridge line part of an upper surface and a side surface and a mounting screw abutting part passing through the upper surface and lower surface are formed. In top view, a center shaft of the mounting screw abutting part intersects a perpendicular bisector of the cutting blade and is located at a position away from a center shaft of the body part in relation to the cutting blade. This cutting tool includes the cutting insert and a holder mounted with a plurality of the cutting inserts. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

本発明は、切削インサートおよび切削工具ならびにそれらを用いた被削加工物の製造方法に関する。   The present invention relates to a cutting insert, a cutting tool, and a method for manufacturing a workpiece using them.

従来、スローアウェイ式の切削工具は、切削インサートの中心に設けられた取付孔に取付ねじを挿通し、ホルダにねじ止めして用いられる。   2. Description of the Related Art Conventionally, a throw-away type cutting tool is used by inserting a mounting screw into a mounting hole provided at the center of a cutting insert and screwing it to a holder.

他方、切削インサートの取付安定性の点で、上記ねじ止めに加えて、ホルダに備えられるクランプ部材にて切削インサート上面を押圧する場合もある。特に、送り量が大きな切削工具、すなわち高送り加工用の切削工具においては、高送り加工時に加わる負荷による切削インサートの浮き上がりを抑制する観点から、ねじ止めに加えてクランプ部材が用いられる場合が多い（例えば、特許文献１）。   On the other hand, in terms of mounting stability of the cutting insert, in addition to the above screwing, the upper surface of the cutting insert may be pressed by a clamp member provided in the holder. In particular, in a cutting tool with a large feed amount, that is, a cutting tool for high-feed machining, a clamp member is often used in addition to screwing from the viewpoint of suppressing lifting of the cutting insert due to a load applied during high-feed machining. (For example, patent document 1).

しかし、クランプ部材を用いる場合、切削時に生成される切屑がクランプ部材に絡みつき、切削インサートが損傷する、あるいは被削材の加工面に傷を生じるなどの問題がある。さらに、クランプ部材の存在は、切削インサートを交換する際の作業効率の妨げとなる。   However, when the clamp member is used, there is a problem that chips generated at the time of cutting are entangled with the clamp member, the cutting insert is damaged, or the work surface of the work material is scratched. Furthermore, the presence of the clamping member hinders work efficiency when exchanging the cutting insert.

特表２０００−００５９２１号公報Special Table 2000-005921

本発明の目的は、切削インサートの拘束性に優れ、加工した被削材の加工面が良好な切削インサートを提供することにある。   An object of the present invention is to provide a cutting insert that is excellent in the restraint property of the cutting insert and that has a good machined surface of the machined workpiece.

本発明の切削インサートは、略多角形平板状をなす本体部を備え、該本体部には、上面と側面との交差稜線部に形成される切刃と、上面および下面を貫通する取付ねじ当接部とが形成される切削インサートであって、上面視において、前記取付ねじ当接部の中心軸が、前記切刃の垂直二等分線と交わるとともに、前記切刃に対して前記本体部の中心軸よりも離れた位置にあることを特徴とする。   The cutting insert of the present invention includes a main body portion having a substantially polygonal flat plate shape. The main body portion includes a cutting blade formed at a crossing ridge line portion between the upper surface and the side surface, and a mounting screw contact penetrating the upper surface and the lower surface. A cutting insert in which a contact portion is formed, and when viewed from above, a center axis of the mounting screw contact portion intersects a perpendicular bisector of the cutting blade, and the main body portion with respect to the cutting blade It is characterized by being located away from the central axis.

ある実施態様においては、前記切刃が複数形成されるとともに、前記切刃のそれぞれに対応して前記取付ねじ当接部が形成されることを特徴とする。   In one embodiment, a plurality of the cutting blades are formed, and the attachment screw contact portion is formed corresponding to each of the cutting blades.

ある実施態様においては、前記取付ねじ当接部は、対応する前記切刃までの距離が等しくなるように形成されることを特徴とする。   In one embodiment, the attachment screw contact portions are formed so that the distances to the corresponding cutting blades are equal.

ある実施態様においては、上面視において、前記取付ねじ当接部が重複するように形成されることを特徴とする。   In one embodiment, the mounting screw contact portion is formed so as to overlap in a top view.

ある実施態様においては、前記切刃が、主切刃および副切刃からなり、前記取付ねじ当接部の中心軸が、前記主切刃の垂直二等分線と交わるとともに、前記主切刃に対して前記本体部の中心軸よりも離れた位置にあることを特徴とする。   In one embodiment, the cutting edge includes a main cutting edge and a sub cutting edge, and a central axis of the mounting screw contact portion intersects a perpendicular bisector of the main cutting edge, and the main cutting edge Is located at a position away from the central axis of the main body.

本発明の切削工具は、上記切削インサートと、前記該切削インサートが複数装着されるホルダとを備える。   The cutting tool of this invention is equipped with the said cutting insert and the holder by which the said cutting insert is mounted | worn with two or more.

本発明の被削加工物の製造方法は、上記切削工具を回転させて近づける工程と、被削材の表面に前記切削工具の切刃を接触させて前記被削材を切削する工程と、前記被削材から前記切削工具を離間させる工程と、を包含する。   The method of manufacturing a workpiece according to the present invention includes a step of rotating and bringing the cutting tool closer, a step of cutting the workpiece by bringing a cutting blade of the cutting tool into contact with the surface of the workpiece, Separating the cutting tool from the work material.

本発明の切削インサートによれば、取付ねじ当接部の中心軸が、上面視で、本体部の中心軸よりも切刃から離れた位置に設けられている、すなわち、切刃から切削インサートをねじ止めする位置までの距離が従来に比べて長くなるため、切削インサートの拘束力のモーメントを増大させることができ、高送り加工などの切刃に大きな負荷がかかる場合であっても、クランプ部材を用いることなく、切削インサートの浮き上がり、特に被削材に衝突する際に生じる切削インサートの浮き上がりを抑制することができる。したがって、上記切削インサートを用いた切削工具は、安定した加工が可能である。   According to the cutting insert of the present invention, the central axis of the mounting screw contact portion is provided at a position farther from the cutting edge than the central axis of the main body portion when viewed from above, that is, the cutting insert is removed from the cutting edge. Since the distance to the screwing position is longer than before, the moment of the binding force of the cutting insert can be increased, and even when a large load is applied to the cutting blade such as high feed machining, the clamping member Without using the cutting insert, it is possible to suppress the floating of the cutting insert, particularly when the cutting insert collides with the work material. Therefore, the cutting tool using the cutting insert can be stably processed.

本実施形態の切削インサート１の全体斜視図である。It is a whole perspective view of cutting insert 1 of this embodiment. 図１に示す切削インサートの上面図である。It is a top view of the cutting insert shown in FIG. 切削インサート１の別の実施形態の全体斜視図である。It is a whole perspective view of another embodiment of cutting insert 1. FIG. 図３に示す切削インサートの上面図である。It is a top view of the cutting insert shown in FIG. 本実施形態の切削インサート１を用いた切削工具の全体斜視図である。It is the whole cutting tool perspective view using cutting insert 1 of this embodiment. 切削工具による被削加工物の製造方法を説明するための工程図である。It is process drawing for demonstrating the manufacturing method of the workpiece by a cutting tool.

＜切削インサート＞
以下、図１および図２を用いて、本発明の一実施形態である切削インサート１（以下、単にインサート１と略す）について説明する。 <Cutting insert>
Hereinafter, a cutting insert 1 (hereinafter simply referred to as an insert 1) according to an embodiment of the present invention will be described with reference to FIGS.

図１において、インサート１は、略多角形板状の本体部を備えている。この本体部の上面視での形状は、例えば、三角形、四角形、五角形、六角形、八角形などの当業者が通常インサートに使用する形状であればよく、特に制限されない。図１および図２においては、５つの長辺を有する略五角形の形状が用いられている。   In FIG. 1, the insert 1 includes a substantially polygonal plate-like main body. The shape of the main body portion in a top view is not particularly limited as long as it is a shape usually used for inserts by those skilled in the art, such as a triangle, a quadrangle, a pentagon, a hexagon, and an octagon. 1 and 2, a substantially pentagonal shape having five long sides is used.

上記本体部はまた、すくい面として機能する上面２と、着座面として機能する下面３と、逃げ面として機能する上面２および下面３に連続する側面４とで構成され、上面２と側面４との交差稜線部にそれぞれ切刃５が形成されている。さらにすくい面に相当する上面２上には、上面２から下面３にむかって本体部を貫通する取付ねじ当接部６が、各切刃５に対応して複数形成されている。   The main body portion is also composed of an upper surface 2 that functions as a rake surface, a lower surface 3 that functions as a seating surface, an upper surface 2 that functions as a flank, and a side surface 4 continuous to the lower surface 3. Cutting edges 5 are respectively formed at the crossing ridge portions. Furthermore, on the upper surface 2 corresponding to the rake face, a plurality of attachment screw contact portions 6 penetrating the main body from the upper surface 2 to the lower surface 3 are formed corresponding to the respective cutting blades 5.

図１に示すインサート１は、具体的には、側面４が上面２および下面３に対して垂直に形成されている。すなわち上面および下面の両面をそれぞれすくい面として使用可能なネガティブ形のインサートである。すなわち、インサート１は１０コーナー使いのインサートである。この場合、下面３と側面４との交差稜線においても切刃５が形成されており、下面側の切刃５を用いる場合、下面３をすくい面、上面２を着座面として使用することが可能である。なお、本発明においては、上面２または下面３と、側面４との間に逃げ角を有する、いわゆるポジティブ形のインサートであってもよい。   Specifically, in the insert 1 shown in FIG. 1, the side surface 4 is formed perpendicular to the upper surface 2 and the lower surface 3. That is, it is a negative insert that can be used as a rake face on both the upper and lower surfaces. That is, the insert 1 is an insert using 10 corners. In this case, the cutting edge 5 is also formed at the intersecting ridge line between the lower surface 3 and the side surface 4. When the lower cutting edge 5 is used, the lower surface 3 can be used as a scooping surface, and the upper surface 2 can be used as a seating surface. It is. In the present invention, a so-called positive insert having a clearance angle between the upper surface 2 or the lower surface 3 and the side surface 4 may be used.

上面２と側面４との交差稜線部に形成される切刃５は、主切刃５１と、主切刃５１に連続して形成される副切刃５２とからなる。主切刃５１は、切削作用において、切屑生成に主な役割を果たす刃である。切削抵抗の低減の観点から、主切刃を分断するような溝部を設けてもよい。副切刃５２は、被削材の仕上げ面粗度向上の目的で形成される。   The cutting edge 5 formed at the intersecting ridge line portion between the upper surface 2 and the side surface 4 includes a main cutting edge 51 and a sub cutting edge 52 formed continuously to the main cutting edge 51. The main cutting edge 51 is a blade that plays a main role in generating chips in the cutting action. From the viewpoint of reducing cutting resistance, a groove that divides the main cutting edge may be provided. The auxiliary cutting edge 52 is formed for the purpose of improving the finished surface roughness of the work material.

取付ねじ当接部６は、具体的には、ホルダ取付孔であり、本体部を貫通するように略円筒形状に形成されている。この取付ねじ当接部６は、インサート１をホルダに固定する目的で形成され、この取付ねじ当接部６に取付ねじを挿入してホルダにねじ込むことによって固定される。取付ねじ当接部６は、切刃５、特に主切刃５１に対応して形成される。例えば、図２に示すインサート１においては、上面２と側面４との交差稜線部に形成された５本の主切刃５１ａ〜５１eにそれぞれ対応して、５個の取付ねじ当接部６ａ〜６eが形成されている。   Specifically, the attachment screw contact portion 6 is a holder attachment hole, and is formed in a substantially cylindrical shape so as to penetrate the main body portion. The attachment screw contact portion 6 is formed for the purpose of fixing the insert 1 to the holder, and is fixed by inserting an attachment screw into the attachment screw contact portion 6 and screwing it into the holder. The attachment screw contact portion 6 is formed corresponding to the cutting edge 5, particularly the main cutting edge 51. For example, in the insert 1 shown in FIG. 2, the five attachment screw contact portions 6 a to 6 a correspond to the five main cutting edges 51 a to 51 e formed at the intersecting ridge line portions of the upper surface 2 and the side surface 4. 6e is formed.

本発明においては、取付ねじ当接部６は、取付ねじ当接部６の中心軸が、上面２（すくい面）から見て、本体部の中心軸を通る対応する切刃５、特に主切刃５１の垂直二等分線と交わるとともに、この切刃５に対して本体部の中心軸よりも離れた位置に形成されている。例えば、図２においては、取付ねじ当接部６aの中心軸が、切刃５１ａの垂直二等分線Ｌと交わっており、切刃５１ａから略五角形のインサート本体部の中心軸Ｃまでの距離Ｄより離れた位置に形成されている。このような構成によって、切削インサートをねじ止めする位置の切刃からの距離が、従来本体部の中心軸に設けられていた場合に比べて長くなるため、切削インサートの拘束力のモーメントが増大する。したがって、例えば、高送り加工などの切刃に大きな負荷がかかる場合であっても、クランプ部材を用いることなく、インサート１の浮き上がりを抑制することができ、安定した加工が可能となる。また、本発明においては、従来に比べて、取付ねじ当接部（取付孔）を小さく形成しても同程度のインサートの拘束性が得られるため、取付ねじ当接部による空隙を小さくすることが可能であり、インサート自体の耐久性を向上することが可能である。さらに、クランプ部材を必要としないため、切屑排出性が良好となり、切屑がクランプ部材に絡みつくことにより生じるインサートの損傷、あるいは切屑により生じる加工面の傷を抑制することができる。本発明はまた、クランプ部材を必要としないため、クランプ部材に生じるコストの増加を低減できるとともに、従来のインサートの交換時に生じるクランパーの取り外しなどの煩雑な操作を必要としない。なお、取付ねじ当接部６における切刃５からの距離の上限は、取付ねじ当接部が本体部に形成できればよく、特に制限されない。   In the present invention, the mounting screw abutting portion 6 has a corresponding cutting edge 5, particularly a main cutting edge, in which the central axis of the mounting screw abutting portion 6 passes through the central axis of the main body when viewed from the upper surface 2 (rake face). It intersects with the vertical bisector of the blade 51 and is formed at a position away from the center axis of the main body with respect to the cutting blade 5. For example, in FIG. 2, the center axis of the mounting screw contact portion 6a intersects the vertical bisector L of the cutting edge 51a, and the distance from the cutting edge 51a to the central axis C of the substantially pentagonal insert body portion. It is formed at a position distant from D. With such a configuration, since the distance from the cutting blade at the position where the cutting insert is screwed is longer than that provided in the center axis of the conventional main body, the moment of the binding force of the cutting insert increases. . Therefore, for example, even when a large load is applied to the cutting blade such as high-feed machining, lifting of the insert 1 can be suppressed without using a clamp member, and stable machining can be performed. Also, in the present invention, since the same degree of insert restraint can be obtained even if the mounting screw contact portion (mounting hole) is made smaller than in the prior art, the gap due to the mounting screw contact portion should be reduced. It is possible to improve the durability of the insert itself. Furthermore, since the clamp member is not required, chip dischargeability is improved, and damage to the insert caused by the entanglement of the chip with the clamp member or damage to the work surface caused by the chip can be suppressed. In addition, since the clamp member is not required, the present invention can reduce an increase in cost generated in the clamp member, and does not require a complicated operation such as removal of a clamper that occurs when the conventional insert is replaced. In addition, the upper limit of the distance from the cutting blade 5 in the attachment screw contact part 6 should just be able to form an attachment screw contact part in a main-body part, and is not restrict | limited in particular.

取付ねじ当接部６の大きさは、インサート１の強度、インサート１の取付安定性などに応じて適宜設定される。インサート１の強度の点では、取付ねじ当接部（取付孔）の径を小さくすることが好ましく、他方、インサート１の取付安定性（インサート１の浮き上がり抑制）の点では、取付ねじ当接部（取付孔）の径を大きくすることが好ましい。さらに、取付ねじ当接部６の位置は、切刃５に対して本体部の中心軸より離れていればよく、例えば、取付ねじ当接部６の中心軸と本体部の中心軸との距離が、切刃５から本体部の中心軸の距離の約１／１０〜約２／３程度、好ましくは約１／１０〜約１／２程度となるように設計される。例えば、図２では、切刃から本体部の中心軸を通る径が１７ｍｍの略五角形板状のインサートにおいて、約３．５の直径を有する取付ねじ当接部６が形成されており、取付ねじ当接部の中心軸が、本体部の中心軸Ｃから約４．５ｍｍ離れた位置に形成されている。なお、切刃５から本体部中心軸Ｃまでは約８．５ｍｍである。   The size of the mounting screw contact portion 6 is appropriately set according to the strength of the insert 1 and the mounting stability of the insert 1. In terms of strength of the insert 1, it is preferable to reduce the diameter of the mounting screw contact portion (mounting hole). On the other hand, in terms of mounting stability of the insert 1 (suppression of lifting of the insert 1), the mounting screw contact portion. It is preferable to increase the diameter of the (mounting hole). Further, the position of the mounting screw contact portion 6 only needs to be separated from the center axis of the main body portion with respect to the cutting blade 5, for example, the distance between the central axis of the mounting screw contact portion 6 and the central axis of the main body portion. However, it is designed to be about 1/10 to about 2/3, preferably about 1/10 to about 1/2 of the distance from the cutting edge 5 to the central axis of the main body. For example, in FIG. 2, a mounting screw contact portion 6 having a diameter of about 3.5 is formed in a substantially pentagonal plate-like insert having a diameter of 17 mm passing from the cutting edge through the central axis of the main body. The central axis of the contact part is formed at a position about 4.5 mm away from the central axis C of the main body part. The distance from the cutting edge 5 to the central axis C of the main body is about 8.5 mm.

取付ねじ当接部６はまた、断面視において、径が一定で、かつ上面から下面に向かって鉛直に形成されている。このような構成にすれば、上面および下面の形状が同じになり、ネガティブ形のインサート１として使用する場合に好適である。インサート１の浮き上がりをさらに抑制する観点から、例えば、取付ねじ当接部の断面形状が、上面２および下面３から中央に向かってテーパー状となるように形成してもよいし、あるいは上面２から下面３に向かうに従って、対応する切刃５に近づくように傾斜させて形成してもよい。   The mounting screw contact portion 6 is also formed with a constant diameter in a cross-sectional view and vertically from the upper surface to the lower surface. With such a configuration, the shapes of the upper surface and the lower surface are the same, which is suitable for use as the negative insert 1. From the viewpoint of further suppressing the lift of the insert 1, for example, the cross-sectional shape of the mounting screw contact portion may be formed so as to be tapered from the upper surface 2 and the lower surface 3 toward the center, or from the upper surface 2. You may incline so that it may approach the corresponding cutting blade 5 as it goes to the lower surface 3.

取付ねじ当接部６が複数形成される場合、切刃から取付ねじ当接部６までの距離が、それぞれ等しくなるように各取付ねじ当接部が形成されることが好ましい。このような構成にすることによって、各切刃５を用いた場合に、同様のインサートの浮き上がり抑制効果が得られる。   When a plurality of attachment screw contact portions 6 are formed, each attachment screw contact portion is preferably formed so that the distances from the cutting blade to the attachment screw contact portion 6 are equal to each other. By adopting such a configuration, when each of the cutting blades 5 is used, the same effect of suppressing the lift of the insert can be obtained.

図３および図４は、切削インサート１の別の実施形態を示す。図３および図４においては、複数の切刃５に対応する複数の取付ねじ当接部６が上面視（すくい面から見て）で重複するように形成されている。このように取付ねじ当接部を重複するように形成することにより、切削インサートの空隙面積を減少させることができ、強度を保持することが可能である。複数の取付ねじ当接部６が重複する場合、各取付ねじ当接部の距離については、少なくともそれぞれの取付ねじ当接部で独立的にねじ止めできる程度に離して設計されることが好ましい。またこのような取付ねじ当接部においては、取付ねじを傾斜して取り付けてもよい。   3 and 4 show another embodiment of the cutting insert 1. 3 and 4, a plurality of mounting screw contact portions 6 corresponding to the plurality of cutting blades 5 are formed so as to overlap in a top view (viewed from the rake face). Thus, by forming the mounting screw contact portion so as to overlap, the void area of the cutting insert can be reduced, and the strength can be maintained. In the case where a plurality of mounting screw contact portions 6 overlap, it is preferable that the distance between the mounting screw contact portions is designed so as to be separated at least so that they can be screwed independently by at least each mounting screw contact portion. Further, in such an attachment screw contact portion, the attachment screw may be inclined and attached.

＜切削工具＞
図５は、本発明の第一の実施形態によるインサート１を装着してなる切削工具１１の全体斜視図である。ここで、ホルダ１０の外周先端部に複数の切りくずポケット１３が形成されており、切りくずポケット１３内の各々外周位置にインサート１が取り付けられる。具体的には、インサート１は、回転方向に上面（すくい面）２を向けて最外周に主切刃５１が位置するように装着される。切削工具１１は、ホルダ１０を回転させることによって主切刃５１により切削が行われる。 <Cutting tools>
FIG. 5 is an overall perspective view of the cutting tool 11 to which the insert 1 according to the first embodiment of the present invention is mounted. Here, a plurality of chip pockets 13 are formed at the outer peripheral tip of the holder 10, and the insert 1 is attached to each outer peripheral position in the chip pocket 13. Specifically, the insert 1 is mounted such that the main cutting edge 51 is positioned on the outermost periphery with the upper surface (rake surface) 2 facing in the rotation direction. The cutting tool 11 is cut by the main cutting edge 51 by rotating the holder 10.

本発明の切削工具は、使用されるインサート１が被削材に衝突する際に生じる浮き上がりを効果的に抑制される構成を有しているため、特に送り量の大きい、例えば、０．６〜２．０ｍｍ／ｒｅｖ程度の送り量の高送りの切削工具として用いる場合に好適である。   Since the cutting tool of the present invention has a configuration that effectively suppresses the lift that occurs when the insert 1 used collides with the work material, the feed amount is particularly large, for example, 0.6 to It is suitable for use as a high-feed cutting tool with a feed amount of about 2.0 mm / rev.

本発明の切削工具はまた、クランプ部材を必要とせず、ホルダにおいてクランプ取付部（ポケット）を形成する必要がない。そのため、十分な強度を有するホルダを用いることができる。   The cutting tool of the present invention also does not require a clamp member, and it is not necessary to form a clamp attachment portion (pocket) in the holder. Therefore, a holder having sufficient strength can be used.

＜被削加工物の製造方法＞
本発明に係る被削加工物の製造方法は、上記切削工具（転削工具）を回転させて被削材に近づける工程と、被削材の表面に前記切削工具の切刃を接触させて前記被削材を切削する工程と、前記被削材から前記切削工具を離間させる工程と、を包含する。具体的な工程図を図６に示す。 <Manufacturing method of workpiece>
The method of manufacturing a workpiece according to the present invention includes a step of rotating the cutting tool (rolling tool) to bring it close to the work material, and bringing a cutting blade of the cutting tool into contact with the surface of the work material. A step of cutting the work material, and a step of separating the cutting tool from the work material. A specific process diagram is shown in FIG.

このような被削加工物の製造方法は、上述のように、インサート１とホルダ１０との拘束力が高いため、切削時にインサートが振動することが少なく、さらにクランプ部材を必要としないため、良好な切削加工面が得られる。   As described above, the manufacturing method of such a workpiece is good because the insert 1 and the holder 10 have a high restraining force, so that the insert is less likely to vibrate during cutting and does not require a clamp member. A machined surface can be obtained.

具体的には、まず、ホルダ１０にインサート１を装着する。このとき、ホルダ１０の同一円周上に沿って、インサート１を、ホルダ１０の取付部に取り付ける。取り付け方法は、例えば、インサート１の逃げ面である上面２１に形成される中央部のねじ穴に、ねじを挿入することによって行われる。   Specifically, first, the insert 1 is mounted on the holder 10. At this time, the insert 1 is attached to the attachment portion of the holder 10 along the same circumference of the holder 10. The attachment method is performed, for example, by inserting a screw into a central screw hole formed in the upper surface 21 that is the flank of the insert 1.

次いで、ホルダ１０にインサート１を取り付けた後、図６（ａ）に示すように、ホルダ１０の軸心を中心にＡ方向に回転させ、切削工具１１の切刃を被削材１００に近づけ（Ｂ方向）、接触させることによって、被削材を切削する。例えば、図６（ｂ）に示すように、切削工具１１は、被削材の表面を略平行（Ｃ方向）に切削することが可能である。   Next, after the insert 1 is attached to the holder 10, as shown in FIG. 6A, the holder 10 is rotated in the A direction around the axis of the holder 10, and the cutting edge of the cutting tool 11 is brought closer to the work material 100 ( In the B direction), the work material is cut by contacting. For example, as shown in FIG. 6B, the cutting tool 11 can cut the surface of the work material substantially parallel (C direction).

その後、図６（ｃ）に示すように、被削材から切削工具を離間させる（Ｄ方向）。切削加工を継続する場合には、切削工具１１を回転させた状態を保持して、被削材の異なる箇所に切削工具の切刃５を接触させる工程を繰り返せばよい。   Then, as shown in FIG.6 (c), a cutting tool is spaced apart from a workpiece (D direction). When continuing the cutting process, the state in which the cutting tool 11 is rotated may be maintained, and the process of bringing the cutting blade 5 of the cutting tool into contact with a different part of the work material may be repeated.

以上、本発明にかかるいくつかの実施形態について例示したが、本発明は上述した実施形態に限定されるものではなく、本発明の要旨を逸脱しない限り任意のものとすることができることは言うまでもない。   As mentioned above, although several embodiment concerning this invention was illustrated, this invention is not limited to embodiment mentioned above, It cannot be overemphasized that it can be made arbitrary, unless it deviates from the summary of this invention. .

１ 切削インサート
２ 上面
３ 下面
４ 側面
５ 切刃
５１ 主切刃
５２ 副切刃
６ 取付ねじ当接部
１０ ホルダ
１１ 切削工具 DESCRIPTION OF SYMBOLS 1 Cutting insert 2 Upper surface 3 Lower surface 4 Side surface 5 Cutting blade 51 Main cutting blade 52 Sub cutting blade 6 Mounting screw contact part 10 Holder 11 Cutting tool

Claims (7)

略多角形平板状をなす本体部を備え、該本体部には、上面と側面との交差稜線部に形成される切刃と、上面および下面を貫通する取付ねじ当接部とが形成される切削インサートであって、
上面視において、前記取付ねじ当接部の中心軸が、前記切刃の垂直二等分線と交わるとともに、前記切刃に対して前記本体部の中心軸よりも離れた位置にあることを特徴とする、切削インサート。 A main body portion having a substantially polygonal flat plate shape is provided, and a cutting blade formed at a crossing ridge line portion between the upper surface and the side surface, and a mounting screw contact portion penetrating the upper surface and the lower surface are formed on the main body portion. A cutting insert,
When viewed from above, a center axis of the mounting screw contact portion intersects with a perpendicular bisector of the cutting blade and is located at a position away from the center axis of the main body portion with respect to the cutting blade. Cutting insert. 前記切刃が複数形成されるとともに、前記切刃のそれぞれに対応して前記取付ねじ当接部が形成されることを特徴とする、請求項１に記載の切削インサート。   The cutting insert according to claim 1, wherein a plurality of the cutting blades are formed, and the attachment screw contact portion is formed corresponding to each of the cutting blades. 前記取付ねじ当接部は、対応する前記切刃までの距離が等しくなるように形成されることを特徴とする、請求項２に記載の切削インサート。   The cutting insert according to claim 2, wherein the mounting screw contact portions are formed so that the distances to the corresponding cutting blades are equal. 上面視において、前記取付ねじ当接部が重複するように形成されることを特徴とする、請求項２または３に記載の切削インサート。   The cutting insert according to claim 2 or 3, wherein the mounting screw contact portion is formed so as to overlap in a top view. 前記切刃が、主切刃および副切刃からなり、
前記取付ねじ当接部の中心軸が、前記主切刃の垂直二等分線と交わるとともに、前記主切刃に対して前記本体部の中心軸よりも離れた位置にあることを特徴とする、請求項１から４のいずれかの項に記載の切削インサート。 The cutting edge consists of a main cutting edge and a sub cutting edge,
A center axis of the mounting screw contact portion intersects a perpendicular bisector of the main cutting edge and is located at a position away from the main axis of the main body portion with respect to the main cutting edge. The cutting insert according to any one of claims 1 to 4. 請求項１から５のいずれかの項に記載の切削インサートと、該切削インサートが複数装着されるホルダとを備える、切削工具。   A cutting tool comprising the cutting insert according to any one of claims 1 to 5 and a holder to which a plurality of the cutting inserts are mounted. 請求項６に記載の切削工具を回転させて被削材に近づける工程と、
前記被削材の表面に前記切削工具の切刃を接触させて前記被削材を切削する工程と、
前記被削材から前記切削工具を離間させる工程と、
を包含する、被削加工物の製造方法。
Rotating the cutting tool according to claim 6 to approach the work material;
Cutting the work material by bringing a cutting edge of the cutting tool into contact with the surface of the work material;
Separating the cutting tool from the work material;
A method for manufacturing a work piece, comprising:
JP2009107910A 2009-04-27 2009-04-27 Cutting insert, cutting tool, and method for manufacturing workpiece using the same Expired - Fee Related JP5334668B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009107910A JP5334668B2 (en) 2009-04-27 2009-04-27 Cutting insert, cutting tool, and method for manufacturing workpiece using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009107910A JP5334668B2 (en) 2009-04-27 2009-04-27 Cutting insert, cutting tool, and method for manufacturing workpiece using the same

Publications (2)

Publication Number Publication Date
JP2010253632A true JP2010253632A (en) 2010-11-11
JP5334668B2 JP5334668B2 (en) 2013-11-06

Family

ID=43315152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009107910A Expired - Fee Related JP5334668B2 (en) 2009-04-27 2009-04-27 Cutting insert, cutting tool, and method for manufacturing workpiece using the same

Country Status (1)

Country Link
JP (1) JP5334668B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013027211A1 (en) * 2011-08-22 2013-02-28 Iscar Ltd. Cutting tool and cutting insert having a clamping bore with spaced apart clamping portions
US20130195569A1 (en) * 2012-01-31 2013-08-01 Christoph Gey Modular cutting insert and method of making same
JP6052712B2 (en) * 2014-02-26 2016-12-27 株式会社タンガロイ Cutting tools
US11446744B2 (en) * 2017-09-30 2022-09-20 Zhuzhou Cemented Carbide Cutting Tools Co., Ltd Polygonal cutting blade having circular arc-shaped groove in hole and cutting tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107498610B (en) * 2017-09-30 2020-08-07 株洲钻石切削刀具股份有限公司 Circular blade and cutting tool with accurate positioning structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341921A (en) * 1966-01-10 1967-09-19 Gen Electric Cutting insert
JPH1119808A (en) * 1997-06-30 1999-01-26 Ngk Spark Plug Co Ltd Cutting chip and cutting tool using therewith
JP2001138122A (en) * 1999-11-17 2001-05-22 Mitsubishi Materials Corp Throwaway tip with wiper blade and rotating tool
JP2001328011A (en) * 2000-05-19 2001-11-27 Ngk Spark Plug Co Ltd Throw-away tip and cutting tool for clamping the same
WO2007127109A2 (en) * 2006-04-24 2007-11-08 Valenite Llc Side locking insert and material removal tool with same
JP2008520447A (en) * 2004-11-16 2008-06-19 デグテック コーポレーション Insert tip

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341921A (en) * 1966-01-10 1967-09-19 Gen Electric Cutting insert
JPH1119808A (en) * 1997-06-30 1999-01-26 Ngk Spark Plug Co Ltd Cutting chip and cutting tool using therewith
JP2001138122A (en) * 1999-11-17 2001-05-22 Mitsubishi Materials Corp Throwaway tip with wiper blade and rotating tool
JP2001328011A (en) * 2000-05-19 2001-11-27 Ngk Spark Plug Co Ltd Throw-away tip and cutting tool for clamping the same
JP2008520447A (en) * 2004-11-16 2008-06-19 デグテック コーポレーション Insert tip
WO2007127109A2 (en) * 2006-04-24 2007-11-08 Valenite Llc Side locking insert and material removal tool with same

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013027211A1 (en) * 2011-08-22 2013-02-28 Iscar Ltd. Cutting tool and cutting insert having a clamping bore with spaced apart clamping portions
CN103747906A (en) * 2011-08-22 2014-04-23 伊斯卡有限公司 Cutting tool and cutting insert having a clamping bore with spaced apart clamping portions
US8905683B2 (en) 2011-08-22 2014-12-09 Iscar, Ltd. Cutting tool and cutting insert having clamping bore with spaced apart clamping portions therefor
CN105880703A (en) * 2011-08-22 2016-08-24 伊斯卡有限公司 Cutting tool and cutting insert having clamping bore with spaced apart clamping portions therefor
KR101737188B1 (en) 2011-08-22 2017-05-17 이스카 엘티디. Cutting tool and cutting insert having a clamping bore with spaced apart clamping portions
US20130195569A1 (en) * 2012-01-31 2013-08-01 Christoph Gey Modular cutting insert and method of making same
US8696264B2 (en) * 2012-01-31 2014-04-15 Kennametal Inc. Modular cutting insert and method of making same
US9440294B2 (en) 2012-01-31 2016-09-13 Kennametal Inc. Modular cutting insert and method of making same
JP6052712B2 (en) * 2014-02-26 2016-12-27 株式会社タンガロイ Cutting tools
JPWO2015129770A1 (en) * 2014-02-26 2017-03-30 株式会社タンガロイ Cutting tools
US11446744B2 (en) * 2017-09-30 2022-09-20 Zhuzhou Cemented Carbide Cutting Tools Co., Ltd Polygonal cutting blade having circular arc-shaped groove in hole and cutting tool

Also Published As

Publication number Publication date
JP5334668B2 (en) 2013-11-06

Similar Documents

Publication Publication Date Title
JP4578577B2 (en) Cutting insert, cutting tool, and cutting method using them
JP5844906B2 (en) Double-sided cutting insert for milling
JP6330913B2 (en) Cutting insert and cutting edge exchangeable rotary cutting tool
JP5445700B2 (en) Cutting inserts and cutting edge exchangeable cutting tools
JP6365363B2 (en) Cutting insert, cutting insert group and cutting edge exchangeable cutting tool
JP5227342B2 (en) Cutting insert, cutting tool, and cutting method
US9776258B2 (en) Double-sided, trigon cutting insert with rounded minor cutting edge and cutting tool therefor
JP6217045B2 (en) Cutting insert for milling
JPWO2011122676A1 (en) Cutting insert and cutting edge changeable cutting tool
JP5334668B2 (en) Cutting insert, cutting tool, and method for manufacturing workpiece using the same
KR20160147038A (en) Cutting insert and face milling cutter
JP2014083667A (en) Cutting insert and tip replaceable cutting tool
JP2016163911A (en) Cutting insert, tool body and cutting tool
KR102197363B1 (en) Cutting insert
JP2014083632A (en) Cutting insert and tip replaceable cutting tool
JP2017193002A (en) Cutting insert and cutting tool
KR101469135B1 (en) Cutting insert and cutting tool for mounting the same
JP2015196203A (en) Edge replaceable metal saw
JP2006181702A (en) Blade edge replacing type tip and end mill using the same
JP5430069B2 (en) Milling tool and cutting method using the same
JP5309748B2 (en) Insert detachable cutter and cutting insert
JP2008055600A (en) Throw-away insert and rotating tool therewith
JP2011051029A (en) Cutting tool
JP2006205298A (en) Cutting insert, milling cutter tool and cutting method using this cutting insert
JP2010149234A (en) Cutting insert, cutting tool, and cutting method using them

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20111017

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20130326

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20130328

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20130514

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20130702

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20130730

R150 Certificate of patent or registration of utility model

Ref document number: 5334668

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees