JPH08252715A - Planer cutting tool - Google Patents
Planer cutting toolInfo
- Publication number
- JPH08252715A JPH08252715A JP6025195A JP6025195A JPH08252715A JP H08252715 A JPH08252715 A JP H08252715A JP 6025195 A JP6025195 A JP 6025195A JP 6025195 A JP6025195 A JP 6025195A JP H08252715 A JPH08252715 A JP H08252715A
- Authority
- JP
- Japan
- Prior art keywords
- cutting tool
- tool holder
- cutting
- friction
- vibration
- 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- Withdrawn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
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、プレーナバイトに関す
る。詳しくは、プレーナの刃具ホルダ本体の動剛性を高
めたものである。FIELD OF THE INVENTION This invention relates to planar bytes. Specifically, the blade holder main body of the planar is improved in dynamic rigidity.
【0002】[0002]
【従来の技術】各種のバイトを使用して、主として工作
物に平削り加工を施すプレーナの一例を図3に示す。同
図に示すように、刃具ホルダ取付台06に鋼鉄製の刃具
ホルダ本体01が取り付けられ、この刃具ホルダ本体0
1の先端に切削チップ(刃具)05が保持されている。
刃具ホルダ本体01の形状は、切削時の喰い込みを避け
るため、切削負荷で逃げるように取付部に対して切削ポ
イントを後へ下げる形状となっている。2. Description of the Related Art FIG. 3 shows an example of a planer for mainly planing a workpiece using various cutting tools. As shown in the figure, a steel blade holder main body 01 is attached to the blade holder mounting base 06.
A cutting tip (cutting tool) 05 is held at the tip of 1.
The shape of the cutting tool holder body 01 has a shape in which the cutting point is lowered rearward with respect to the mounting portion so as to escape under a cutting load in order to avoid biting during cutting.
【0003】[0003]
【発明が解決しようとする課題】上述した従来のプレー
ナバイトでは、切削負荷が大きいと、工具に加わる力及
びその振動が大きくなるため、工作機械や工具が振動し
て、切削を続ける事ができなくなる。俗に、ビビリと言
われる現象である。特に、加工する形状の制約により、
刃具ホルダ本体01を長く突き出しているときには、ホ
ルダ自体の振動が顕著となる。In the above-mentioned conventional planar bite, when the cutting load is large, the force applied to the tool and its vibration become large, so that the machine tool and the tool vibrate and the cutting can be continued. Disappear. It is a phenomenon commonly known as chattering. Especially, due to the restriction of the shape to be processed,
When the blade holder main body 01 is extended for a long time, the vibration of the holder itself becomes significant.
【0004】また、刃具ホルダ本体01を寸法制約の範
囲一杯まで大きくすると、それ以上の剛性向上を図るこ
とができないという不具合もある。本発明は、上記従来
技術に鑑みてなされたものであり、振動を積極的に減衰
させることにより、動剛性の高いプレーナバイトを提供
することを目的とする。Further, if the cutting tool holder body 01 is enlarged to the full extent of the size constraint, there is a problem that the rigidity cannot be further improved. The present invention has been made in view of the above prior art, and an object thereof is to provide a planar bite having high dynamic rigidity by positively damping vibration.
【0005】[0005]
【課題を解決するための手段】斯かる目的を達成する本
発明のプレーナバイトに係る構成は、先端に刃具が保持
される共に刃具ホルダ取付台に固定される刃具ホルダ本
体に摩擦減衰要素を付加して、動剛性を高めたことを特
徴とする。また、前記摩擦減衰要素は、前記刃具ホルダ
本体内で相対的に最も大きく振動する部分に設けるこ
と、更に、前記刃具ホルダ本体に切込みを入れると共に
該切込みに摩擦板を張り付けて構成することを特徴とす
る。According to the structure of the planar bite of the present invention that achieves the above object, a friction damping element is added to a cutting tool holder main body which is held at a tip thereof and fixed to a cutting tool holder mounting base. It is characterized by improving the dynamic rigidity. In addition, the friction damping element is provided in a portion of the cutting tool holder body that vibrates relatively largest, and further, a cut is made in the cutting tool holder body, and a friction plate is attached to the cut. And
【0006】[0006]
【作用】刃具ホルダ本体の先端に保持される刃具により
切削等の加工を行うと、その反力で刃具ホルダ本体に振
動が生じる。刃具ホルダ本体に設けられる摩擦減衰要素
は、その摩擦力とその振巾に応じた仕事量をエネルギー
損失として消費するため、振動の減衰効果が生じる。こ
こで、刃具ホルダ本体のような小さなものの振動は、一
般に、数百Hzから数千Hzの高周波であるため、減衰
効果が大きく現れる。When the cutting tool held at the tip of the cutting tool holder body is used for processing such as cutting, the reaction force causes vibration of the cutting tool holder body. The friction damping element provided in the cutting tool holder body consumes a work amount corresponding to the frictional force and the amplitude as energy loss, so that a vibration damping effect is produced. Here, the vibration of a small object such as the cutting tool holder main body generally has a high frequency of several hundreds Hz to several thousands Hz, so that a large damping effect appears.
【0007】特に、刃具ホルダ本体の内部で相対的に最
も大きく振動する部分、つまり、振動の節の部分に切込
みを入れ、この切込みに摩擦板を張り付けて摩擦減衰要
素を構成すると、効率的にエネルギーが消費されるた
め、一層、減衰効果が大きくすることができる。尚、切
込みを入れることにより静剛性が低下するが、摩擦板を
張り付けるためその低下した程度を補って、更に、動剛
性を高めることができる。In particular, if a cut is made in a portion of the cutting tool holder body that vibrates relatively most, that is, a node of vibration, and a friction plate is attached to the cut to form a friction damping element, it is efficient. Since energy is consumed, the damping effect can be further increased. Incidentally, although static rigidity is lowered by making a cut, since the friction plate is attached, it is possible to compensate for the lowered degree and further increase dynamic rigidity.
【0008】[0008]
【実施例】以下、本発明について、図面に示す実施例を
参照して詳細に説明する。図1,2に本発明の一実施例
を示す。同図に示すように刃具ホルダ取付台6に鋼鉄製
の刃具ホルダ本体1が取り付けられ、この刃具ホルダ本
体1の先端に切削チップ(刃具)5が保持されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the drawings. 1 and 2 show an embodiment of the present invention. As shown in the figure, a steel blade holder main body 1 is attached to a blade holder mounting base 6, and a cutting tip (blade) 5 is held at the tip of the blade holder main body 1.
【0009】刃具ホルダ本体1の形状は、切削時の喰い
込みを避けるため、切削負荷で逃げるように取付部に対
して切削ポイントを後へ下げる形状となっている。刃具
ホルダ本体1の切削チップ5の逆側の中央部にはU字形
の切込み1aが形成されている。この位置は、刃具ホル
ダ本体1内で相対的に最も大きく振動する位置、つま
り、振動の節の部分である。The shape of the cutting tool holder main body 1 is such that the cutting point is lowered backward with respect to the mounting portion so as to escape by the cutting load in order to avoid biting during cutting. A U-shaped cut 1a is formed in the central portion of the cutting tool holder body 1 on the opposite side of the cutting tip 5. This position is a position at which the blade holder main body 1 relatively vibrates most, that is, a vibration node.
【0010】この切込み1aの上下の部分の表裏には凹
部が形成されると共にこの凹部には貫通孔が穿設されて
いる。切込み1aの表裏の凹部には、上下に渡して摩擦
板2,3が嵌め込まれると共に表裏の摩擦板2,3が貫
通孔を通じる皿ボルト4にて両側より締め付けられてい
る。摩擦板2,3は、凹部よりもやや小さくしてある。
摩擦板2,3は、2枚だけでなく、本体に溝を入れて、
更に多数設けることも可能である。また、複数設ける必
要はなく、1枚でも良い。A recess is formed on the front and back of the upper and lower parts of the cut 1a, and a through hole is formed in this recess. Friction plates 2 and 3 are fitted vertically in the recesses on the front and back of the cut 1a, and the friction plates 2 and 3 on the front and back are tightened from both sides with countersunk bolts 4 passing through the through holes. The friction plates 2 and 3 are made slightly smaller than the recesses.
Not only two friction plates 2 and 3 but also grooves in the body,
It is also possible to provide a larger number. Further, it is not necessary to provide a plurality of pieces, and one piece may be provided.
【0011】皿ボルト4に代えて、スペースが許せば、
通常のボルトを使用しても良く、また、リベット止め、
溶接等でも可能である。要するに、摩擦板2,3を挟み
付ければ良い。また、貫通孔は、皿ボルト4とせり合う
ことのないようにやや大きめにしてある。If space allows, instead of the flat head bolt 4,
Ordinary bolts may be used, riveting,
It is also possible to use welding or the like. In short, the friction plates 2 and 3 may be sandwiched. Further, the through hole is made slightly larger so that it does not interfere with the countersunk bolt 4.
【0012】上記構成を有する本実施例のプレーナバイ
トでは、刃具ホルダ本体1に摩擦減衰要素として摩擦板
2,3を設けたため、切削による振動が摩擦板2,3の
摩擦力とその振巾に応じた仕事量により、エネルギー損
失として消費される。そのため、振動の減衰効果が生
じ、能率の良い切削条件で加工を行うことが可能とる。In the planar cutting tool of the present embodiment having the above-mentioned structure, since the friction plates 2 and 3 are provided on the cutting tool holder body 1 as the friction damping elements, the vibration caused by cutting affects the friction force of the friction plates 2 and 3 and its amplitude. Depending on the work done, it is consumed as an energy loss. Therefore, a vibration damping effect occurs, and it is possible to perform machining under efficient cutting conditions.
【0013】ここで、刃具ホルダ本体1のような小さな
ものの振動は、一般に、数百Hzから数千Hzの高周波
であるため、減衰効果が大きく現れる。特に、刃具ホル
ダ本体1内で最も大きく振動する部分にU字形の切込み
1aを設けて摩擦板2,3を張り付けたため、切込み1
a付近を節とする振動がエネルギー損失として消費され
るため、一層、減衰効果が大きくすることができる。
尚、切込み1aを入れることにより、刃具ホルダ本体1
の静剛性が低下するが、摩擦板2,3を張り付けるため
その低下した程度を補って、更に、動剛性を高めること
ができる。Here, since vibration of a small object such as the cutting tool holder body 1 is generally a high frequency of several hundred Hz to several thousands Hz, a large damping effect appears. In particular, since the U-shaped notch 1a is provided and the friction plates 2 and 3 are attached to the most vibrating portion of the tool holder body 1, the notch 1
Since the vibration around the node a is consumed as energy loss, the damping effect can be further increased.
By making the cut 1a, the cutting tool holder body 1
However, since the friction plates 2 and 3 are attached, the degree of the decrease can be compensated and the dynamic rigidity can be further increased.
【0014】[0014]
【発明の効果】以上、実施例に基づいて具体的に説明し
たように、本発明によれば、刃具ホルダ本体に摩擦減衰
要素を設けたため、切削による振動を減衰させることが
できると共に動剛性が高くなり、能率の良い切削条件で
加工を行うことが可能となった。特に、摩擦減衰要素を
刃具ホルダ本体内で最も大きく振動する部分に設ける
と、効果的に振動が減衰することになる。As described above in detail with reference to the embodiments, according to the present invention, since the cutting tool holder body is provided with the friction damping element, it is possible to damp vibration due to cutting and to improve dynamic rigidity. It has become higher, and it has become possible to perform machining under efficient cutting conditions. In particular, when the friction damping element is provided in the portion that vibrates most in the tool holder body, the vibration is effectively damped.
【図1】本発明の一実施例に係るプレーナバイトの正面
図である。FIG. 1 is a front view of a planar bite according to an embodiment of the present invention.
【図2】本発明の一実施例に係るプレーナバイトの右側
面図である。FIG. 2 is a right side view of a planar bite according to an embodiment of the present invention.
【図3】従来のプレーナバイトの概念図である。FIG. 3 is a conceptual diagram of a conventional planar byte.
1 刃具ホルダ本体 2,3 摩擦板 4 皿ボルト 5 切削用チップ(刃具) 1 Cutting tool holder body 2, 3 Friction plate 4 Countersunk bolt 5 Cutting tip (cutting tool)
Claims (3)
取付台に固定される刃具ホルダ本体に摩擦減衰要素を付
加して、動剛性を高めたことを特徴とするプレーナバイ
ト。1. A planer bite characterized in that a dynamic damping is enhanced by adding a friction damping element to a cutting tool holder main body which holds a cutting tool at its tip and is fixed to a cutting tool holder mounting base.
体内で相対的に最も大きく振動する部分に設けることを
特徴とする請求項1記載のプレーナバイト。2. The planar cutting tool according to claim 1, wherein the friction damping element is provided in a portion of the cutting tool holder body that vibrates relatively largest.
体に切込みを入れると共に該切込みに摩擦板を張り付け
て構成することを特徴とする請求項1又は2記載のプレ
ーナバイト。3. The planar cutting tool according to claim 1, wherein the friction damping element is formed by making a cut in the cutting tool holder body and attaching a friction plate to the cut.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6025195A JPH08252715A (en) | 1995-03-20 | 1995-03-20 | Planer cutting tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6025195A JPH08252715A (en) | 1995-03-20 | 1995-03-20 | Planer cutting tool |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH08252715A true JPH08252715A (en) | 1996-10-01 |
Family
ID=13136779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6025195A Withdrawn JPH08252715A (en) | 1995-03-20 | 1995-03-20 | Planer cutting tool |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH08252715A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011135958A1 (en) * | 2010-04-27 | 2011-11-03 | 村田機械株式会社 | Tool chatter prevention device |
WO2014087757A1 (en) | 2012-12-03 | 2014-06-12 | 村田機械株式会社 | Vibration reduction device for machine tool |
CN108778586A (en) * | 2016-03-24 | 2018-11-09 | 山高刀具公司 | To blade, cutter and the method for metal works fluting |
US11534834B2 (en) * | 2019-07-17 | 2022-12-27 | Kennametal Inc. | Cutting tool holder with improved dampening effect |
-
1995
- 1995-03-20 JP JP6025195A patent/JPH08252715A/en not_active Withdrawn
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011135958A1 (en) * | 2010-04-27 | 2011-11-03 | 村田機械株式会社 | Tool chatter prevention device |
JP2011230217A (en) * | 2010-04-27 | 2011-11-17 | Murata Machinery Ltd | Tool chatter prevention device |
WO2014087757A1 (en) | 2012-12-03 | 2014-06-12 | 村田機械株式会社 | Vibration reduction device for machine tool |
JP5900654B2 (en) * | 2012-12-03 | 2016-04-06 | 村田機械株式会社 | Machine tool vibration reduction device |
CN104797365B (en) * | 2012-12-03 | 2016-12-28 | 村田机械株式会社 | The vibration absorber of lathe |
US9545673B2 (en) | 2012-12-03 | 2017-01-17 | Murata Machinery, Ltd. | Vibration reduction device for machine tool |
CN108778586A (en) * | 2016-03-24 | 2018-11-09 | 山高刀具公司 | To blade, cutter and the method for metal works fluting |
KR20180125466A (en) * | 2016-03-24 | 2018-11-23 | 쎄코 툴스 에이비 | Blades, tools and methods for grooving metal workpieces |
US11000903B2 (en) | 2016-03-24 | 2021-05-11 | Seco Tools Ab | Blade, tool and method of grooving a metallic workpiece |
CN108778586B (en) * | 2016-03-24 | 2023-12-22 | 山高刀具公司 | Tool body, tool and method for grooving metal workpieces |
US11534834B2 (en) * | 2019-07-17 | 2022-12-27 | Kennametal Inc. | Cutting tool holder with improved dampening effect |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020604 |