JPH02185303A - Vibration-proof boring bar - Google Patents
Vibration-proof boring barInfo
- Publication number
- JPH02185303A JPH02185303A JP738889A JP738889A JPH02185303A JP H02185303 A JPH02185303 A JP H02185303A JP 738889 A JP738889 A JP 738889A JP 738889 A JP738889 A JP 738889A JP H02185303 A JPH02185303 A JP H02185303A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- hole
- bar
- damping
- conical
- 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
Links
- 238000013016 damping Methods 0.000 claims abstract description 61
- 230000000694 effects Effects 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 244000145845 chattering Species 0.000 abstract 1
- 230000001771 impaired effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 239000013013 elastic material Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は中ぐり盤、マシニングセンタ、旋盤等工作機械
のポーリングに使用する防振ボーリングバーの改良に関
する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an improvement in a vibration-proof boring bar used for poling machine tools such as boring machines, machining centers, and lathes.
従来の技術
従来ボーリングバーは一般に細長く刃具迄の軸長さは軸
径に比して数倍になり、びびりを起こして満足できる切
削が困難である。従ってボーリングバーの後端側より中
心に穿設した盲穴に制振バーを介挿して防振性をもたせ
たものが使用されている。BACKGROUND OF THE INVENTION Conventional boring bars are generally long and slender, and the length of the shaft up to the cutting tool is several times the diameter of the shaft, which causes vibration and makes it difficult to achieve satisfactory cutting. Therefore, a damping bar is inserted into a blind hole drilled centrally from the rear end of the boring bar to provide vibration isolation.
発明が解決しようとする課題
制振バーは盲穴の内周面との間で接触する状態に挿入し
て外周の摩擦で振動を減衰させる。或いは盲穴の底に直
裁頭部を圧接させた制振バー先端外周の摩擦で振動を減
衰させている。これ等のものは摩擦面が広（摩擦力が大
きすぎて何れも期待するほどの防振効果は得られていな
い。Problems to be Solved by the Invention The vibration damping bar is inserted into the blind hole so as to be in contact with the inner circumferential surface of the blind hole, and damps vibrations by the friction of the outer circumference. Alternatively, vibrations are damped by friction on the outer periphery of the tip of a vibration damping bar whose head is pressed against the bottom of the blind hole. These products have a wide friction surface (the frictional force is too large), and none of them provide the expected vibration-proofing effect.
例えば後者の第５図のように制振バーを挿入したものは
振動減衰性が第６図に示すように制振バーを挿入しない
第８図のものに比べて相当の効果が認められる。また動
剛性は第７図に示すように１４３７．５Ｈｚで２１．１
．ｃ＋ｍ／ｋｇｆとなり制振バーを挿入しない第９図の
７５μｍ７ｋｔｆの約３．５分の１に減少して相当の効
果が認められる。しかしながらポーリング面特にファイ
ンポーリング面には切削面にボーリングバーの固有振動
数の縞目が現れ、仕上面の向上のために一層の防振効果
が要望されていた。For example, the latter shown in FIG. 5, in which a damping bar is inserted, has a considerably greater vibration damping effect than the one shown in FIG. 8, in which no damping bar is inserted, as shown in FIG. In addition, the dynamic stiffness is 21.1 at 1437.5Hz as shown in Figure 7.
．． c+m/kgf, which is approximately 1/3.5 of the 75 μm 7ktf shown in Fig. 9 without inserting the damping bar, and a considerable effect can be recognized. However, stripes due to the natural frequency of the boring bar appear on the cut surface of the poling surface, particularly the fine poling surface, and there has been a demand for a further vibration-proofing effect to improve the finished surface.
本発明は従来技術の有するこのような間８点に鑑みなさ
れたもので、その目的とするところはコスト上昇を押さ
えた構造で充分な防振効果を得ることができる防振ボー
リングバーを提供しようとするものである。The present invention has been made in view of the above eight problems of the prior art, and its purpose is to provide an anti-vibration boring bar that can obtain sufficient anti-vibration effects with a structure that suppresses cost increases. That is.
課題を解決するための手段
上述の目的を達成するために、本発明はボーリングバー
の盲穴内に制振部材を挿入した防振ボーリングバーにお
いて、前記盲穴の切刃側底面と、前記制振部材の先端を
小面積で圧接させたものである。Means for Solving the Problems In order to achieve the above-mentioned object, the present invention provides a vibration-proof boring bar in which a vibration-damping member is inserted into a blind hole of the boring bar. The tip of the member is pressed against a small area.
作用
ボーリングバーを工作物のポーリングすべき穴に挿入さ
せて切削が開始されると切屑の生成過程で発生する振動
によってボーリングバーは振動するが、ボーリングバー
の減衰性並びに動剛性が大なるため共振現象は起こらず
短期間に振動が減衰される。Operation When the boring bar is inserted into the hole to be polled in the workpiece and cutting is started, the boring bar vibrates due to vibrations generated during the chip generation process, but resonance occurs because the damping properties and dynamic rigidity of the boring bar are large. No phenomenon occurs and the vibration is damped in a short period of time.
実施例第１
以下本発明の実施例を第１図、第２図にもとづき説明す
る。ボリングバーＴはテーパシャンク１につづき自動工
具交換装置によって把持する把持溝２を有するフランジ
３、軸径に比し長い軸部４が形成されており、先端に４
５°の方向に刃具５が取付けられている。そしてテーパ
シャンク１の端面より中心盲穴６が軸部４の剛性をそこ
なわない直径で端近くに達する長さ穿設されており、開
口部には雌ねじ７が刻設されていて、プルスタンド８が
螺着されている。中心盲穴６には制振バー９が介装され
プルスタンド８の内端との間に介挿されたばね１０で制
振バー９端は中心盲穴６の底に圧接されている。Embodiment 1 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. The boring bar T has a taper shank 1, a flange 3 having a gripping groove 2 that is gripped by an automatic tool changer, and a shaft portion 4 that is longer than the shaft diameter.
A cutting tool 5 is attached in a direction of 5°. A central blind hole 6 is bored from the end surface of the tapered shank 1 with a diameter that does not impair the rigidity of the shaft portion 4 and has a length that reaches near the end, and a female thread 7 is cut in the opening. 8 is screwed on. A damping bar 9 is interposed in the central blind hole 6, and the end of the damping bar 9 is pressed against the bottom of the central blind hole 6 by a spring 10 inserted between the inner end of the pull stand 8 and the inner end of the pull stand 8.
中心盲穴６は拡大図の第２図のように円錐角β０本実施
例では１２０ °の円錐凹面６ａに形成され、制振バ
ー９の軸端は円錐角α０本実施例では１１５＠の円錐面
９ａに形成され、β〉αの関係にあって中心点ｐで圧接
されている。α、βは鋭角であるより変形を考慮すると
鈍角の方が好ましい、β０−α０は実施例では５°に形
成され、円錐面９ａ先端はＩＲに形成されたが、両者の
接触部位が点または中心部の数粍の小面積で行われるこ
とが肝。As shown in FIG. 2, which is an enlarged view, the central blind hole 6 is formed into a conical concave surface 6a with a cone angle β0 of 120° in this embodiment, and the shaft end of the damping bar 9 is formed into a conical concave surface 6a with a cone angle α0 of 115 degrees in this embodiment. It is formed on the surface 9a and is pressed at the center point p with the relationship β>α. Considering deformation, α and β are preferably obtuse angles rather than acute angles. β0-α0 is formed at 5° in the example, and the tip of the conical surface 9a is formed at IR, but the contact area between the two is a point or It is important that it be done in a small area of a few millimeters in the center.
要であることで上記の値に制限されるものではない、そ
して制振バー９の外周は中心盲穴６の円周と隙間を有し
ており、本実施例では０．５Ｎの隙間になされた。また
１１１１ｆｌＲバー９の材質は一般に比重の高いものが
用いられ、本実施例では３４５Ｃより比重の高いＭｏ鋼
またはカップ状とした３４ＳＣ材の穴に鉛を充填したも
のを用い、円錐面９ａの先はつぶれを防ぐため焼入れさ
れている。またばね１０のばね圧は接触部の面圧を最適
にするように選択される。The outer circumference of the damping bar 9 has a gap with the circumference of the center blind hole 6, and in this embodiment, the gap is 0.5N. Ta. In addition, the material of the 1111flR bar 9 is generally made of a material with a high specific gravity, and in this embodiment, Mo steel, which has a specific gravity higher than 345C, or a cup-shaped 34SC material in which the hole is filled with lead is used, and the tip of the conical surface 9a is It is hardened to prevent crushing. Further, the spring pressure of the spring 10 is selected to optimize the surface pressure of the contact portion.
本発明の防振ボーリングバーＴは工作機械の工具マガジ
ンに貯蔵され、ポーリング指令で自動工具交換装置によ
り工具主軸に装着され工作物の加工すべき穴に挿入され
てポーリングが行われる。The anti-vibration boring bar T of the present invention is stored in a tool magazine of a machine tool, is mounted on a tool spindle by an automatic tool changer in response to a polling command, and is inserted into a hole to be machined in a workpiece to perform polling.
刃具５には切屑の生成過程で振動が発生する。ボーリン
グバーは一般に軸部４は軸長さが軸径の数倍であるため
振動し易く刃具５の振動が軸部４を振動させる。軸部４
の振動に対して制振バー９は比較的比重が大きく慣性に
よって振動位相がずれ凹円錐面と円錐面の接触中心点Ｐ
または中心接触部に摩擦力が生じる。この摩擦力が軸部
４の振動を減衰させるものである。Vibration occurs in the cutting tool 5 during the process of generating chips. Generally, the shaft portion 4 of a boring bar is easily vibrated because the shaft length is several times the shaft diameter, and the vibration of the cutting tool 5 causes the shaft portion 4 to vibrate. Shaft 4
The damping bar 9 has a relatively large specific gravity and the vibration phase shifts due to inertia, resulting in a contact center point P between the concave conical surface and the conical surface.
Or frictional force occurs at the center contact area. This frictional force dampens vibrations of the shaft portion 4.
実験結果
ａ０本発明品（第１図）
・ボーリングバーの軸部の長さ／直径 約５．４・制振
バーの直径１６．５ 中心盲穴との隙間０．５鶴・α
−１１５β−１２０β−α−５゜
・制振バー材・・カップ形３４５Ｃ材にｐｂを鋳込む二
重構造
・ばね圧・・２００瞳
・手動ハンマ・・米国ＰＣＢ社製インパルスハンマキッ
ト
・周波数分析器・・小野測器社製ＣＦ−９２０型・測定
点−刃具先端
・押打点−刃具取付位置の１８０ °反対面・減衰特
性・・第３図
・動剛性・１４２５Ｈｚ ６．８１Ｊｍ ／ｋｇ ｆ
（第４図）なお円錐面９ａの先端部を約φ３ｆｉ迄
順次つぶしたが減衰特性の変化は少なかった。Experimental results a0 Invented product (Fig. 1) Length/diameter of boring bar shaft approximately 5.4 Diameter of damping bar 16.5 Gap with center blind hole 0.5 Tsuru α
-115β-120β-α-5゜・Vibration bar material・Double structure in which PB is cast into cup-shaped 345C material・Spring pressure・・200 pupils・Manual hammer・・Impulse hammer kit manufactured by PCB, USA・Frequency analysis Instrument: CF-920 model manufactured by Ono Sokki Co., Ltd. Measuring point - Tip of the cutting tool - Pushing point - 180° opposite side of the mounting position of the cutting tool - Damping characteristics...Figure 3 - Dynamic rigidity - 1425 Hz 6.81 Jm / kg f
(FIG. 4) Although the tip of the conical surface 9a was gradually crushed to about φ3fi, there was little change in the damping characteristics.
ばね圧は１００ｋｇでは減衰効果が少なく２５０ｋｇで
は減衰効果が零であった。When the spring pressure was 100 kg, the damping effect was small, and when the spring pressure was 250 kg, the damping effect was zero.
ｂ、従来品（制振バ一端形状第５図）
・他の条件ａと同じ
・減衰特性（第６図）
・動剛性・−１４３７，５）１２ ２１．１ ｐｍ ／
ｋｇｆ （第７図）
Ｃ１制振バーなし
・他の条件同じ
・減衰特性（第８図）
・動剛性・・１４３７．５Ｈ２７５＃ｌｌ ／ ｋｇ
ｆ （第９図）実施例筒２
第１０図に示すように中心盲穴の底に軸方向のねし穴を
穿設して先端を円錐面として焼入れしたねじ１１を螺着
し、制振バー９の端面に円錐穴の当たりを削設してこの
部分で接触させる。b, Conventional product (shape of one end of vibration damping bar in Fig. 5) - Same as other conditions a - Damping characteristics (Fig. 6) - Dynamic stiffness -1437,5) 12 21.1 pm /
kgf (Fig. 7) Without C1 damping bar, other conditions are the same, damping characteristics (Fig. 8) - Dynamic rigidity...1437.5H275#ll / kg
f (Fig. 9) Example cylinder 2 As shown in Fig. 10, a tapped hole in the axial direction is drilled at the bottom of the central blind hole, and a screw 11 hardened with a conical tip is screwed in to suppress vibration. A conical hole is cut into the end face of the bar 9 to make contact there.
実施例筒３
第１１図に示すように中心盲穴の底に球面または円錐穴
の当たりを削設し、制振バ一端に球部材１２を取付けて
、球面で接触させる０球部材は鋼。Embodiment Cylinder 3 As shown in FIG. 11, a spherical or conical hole contact is cut at the bottom of the center blind hole, a spherical member 12 is attached to one end of the damping bar, and the 0-spherical member that makes contact with the spherical surface is made of steel.
セラミック、ルビー等自由に選定することができる。You can freely choose ceramic, ruby, etc.
実施例筒４
第１２図に示すように中心盲穴の底に円錐穴の当たりを
削設し、制振部材１３は多数の板状部材を積層状態に配
列し先端の板端を円錐としてこの部分で円錐穴に接触さ
せる。板面での摩擦が加わることにより減衰効果が増加
する。Example cylinder 4 As shown in Fig. 12, a conical hole is cut in the bottom of the central blind hole, and the vibration damping member 13 is made of a large number of plate-like members arranged in a stacked manner, with the tip end being conical. The part touches the conical hole. The damping effect increases due to the addition of friction on the plate surface.
実施例筒５
第１３図に示すように制振部材は多数の円錐こま１４ａ
、１４ｂ、１４ｃ・・・を−列に配列したものである。Example tube 5 As shown in FIG.
, 14b, 14c... are arranged in a - column.
各接触部の摩擦により減衰効果が増加する。The damping effect increases due to the friction of each contact.
実施例筒６
第１４図に示すように中心盲穴の底に円錐こま１５を取
付け、制振バー９に円錐穴の当たりを削設して接触させ
るとともに、ばね１０の力を円錐こま１６を介してその
円錐端を制振バー９の円錐穴の当たりに接触させる。２
個所の小面積の接触によって減衰効果を得る。Embodiment cylinder 6 As shown in FIG. 14, a conical top 15 is attached to the bottom of the center blind hole, and the damping bar 9 is made by cutting the contact of the conical hole into contact, and the force of the spring 10 is applied to the conical top 16. The conical end thereof is brought into contact with the conical hole of the damping bar 9 through the vibration damping bar 9. 2
A damping effect is obtained by contacting small areas.
実施例筒７
第１５図に示すように中心盲穴の底を凹球面４ｂに形成
し制振バーの先端を凹球面４ｂより小さな半径の球面９
ｂとしてその凸面で接触させる。Example tube 7 As shown in FIG. 15, the bottom of the central blind hole is formed into a concave spherical surface 4b, and the tip of the vibration damping bar is formed into a spherical surface 9 with a smaller radius than the concave spherical surface 4b.
(b) to make contact with its convex surface.
先端部の耐久性が増加する。Increases the durability of the tip.
実施例筒８
第１６図に示すように加圧用のばねに替え中心盲穴６の
後端に径の異なる′雌ねじ１７．１８を創設しＯリング
１９を嵌めたピストン２０を嵌装し流体（空気、油等）
２１を注入してねじ付埋栓２２を雌ねじ１７に螺装して
流体２１に圧縮力を発生させ、制振バー９と中心盲穴の
底との間を必要な接触圧とする。さらに雌ねじ１８にね
じ付プルスタンド８を螺着させるものである。埋栓２２
の調整によって防振に最適なる摩擦力を選定することが
できる。Example tube 8 As shown in FIG. 16, in place of the pressurizing spring, female threads 17 and 18 with different diameters are created at the rear end of the center blind hole 6, and a piston 20 fitted with an O-ring 19 is fitted to the cylinder 20 to prevent fluid ( air, oil, etc.)
21 is injected and the threaded plug 22 is screwed onto the female thread 17 to generate a compressive force in the fluid 21 to create the necessary contact pressure between the damping bar 9 and the bottom of the center blind hole. Furthermore, the threaded pull stand 8 is screwed onto the female thread 18. Plug 22
By adjusting , it is possible to select the optimal friction force for vibration isolation.
実施例筒９
第１７図に示すように中心盲穴６の後端部に径の異なる
雌ねじ１７．１８を刻設しばねに替え弾性材２３例えば
ゴムを介装し雌ねじ１７にねじ付埋栓２２を螺装して圧
縮力を発生させ、制振バー９の中心盲穴底との必要な摩
擦力を与える。雌ねじ１８にねじ付プルスタンド８を螺
着する０弾性材２３の圧縮量を調整することにより最適
の摩擦力を選定することができる。Example cylinder 9 As shown in FIG. 17, internal threads 17 and 18 of different diameters are carved in the rear end of the central blind hole 6, and the spring is replaced with an elastic material 23. For example, rubber is interposed in the internal thread 17, and a threaded plug is inserted into the internal thread 17. 22 is screwed on to generate compressive force and provide the necessary frictional force with the bottom of the central blind hole of the damping bar 9. The optimum frictional force can be selected by adjusting the amount of compression of the zero elastic material 23 that screws the threaded pull stand 8 onto the female thread 18.
発明の効果
上述のように構成したので、本発明は以下の効果を奏す
る。Effects of the Invention Since the present invention is constructed as described above, the present invention has the following effects.
請求項１．２の防振ボーリングバーは振動の減衰効果は
極めて顕著であり、動剛性を制振バー先端平面形状に対
し工具単体で約３倍とすることができる。ポーリング時
のびびりを完全に防止することができ、仕上面に固有振
動数のマークがあられれず、仕上面精度を向上すること
ができる。The vibration-damping boring bar according to claim 1.2 has a very remarkable vibration damping effect, and the dynamic rigidity of the vibration-damping bar tip can be increased to about three times that of the planar shape of the vibration damping bar tip. It is possible to completely prevent chatter during polling, prevent natural frequency marks from being formed on the finished surface, and improve the precision of the finished surface.
第１図は本発明の防振ボーリングバー縦断面図、第２図
は制振バー先端の拡大図、第３図は同減衰性測定図、第
４図は同コンプライアンス測定図、第５図は従来の制振
バ一端接触図、第６図は従来バーの減衰性測定図、第７
図は同コンプライアンス測定図、第８図は制振バーなし
の場合の減衰性測定図、第９図は同コンプライアンス測
定図、第１０図は盲穴の底の円ｔｌ／！端で制振バーを
接触させた要部断面図、第１１図は同じく球体で接触さ
せた要部断面図、第１２図は制振バーを板状部材の層状
に配列した要部断面図、第１３図は制振バーを円錐こま
の多数を一列に配列した要部断面図、第１４図は円錐面
で制振バーの両端を支持した一部断面図、第１５図は中
心盲穴の底と制振バーとを球面で接触させた一部断面図
、第１６図はＭＪｉバー加圧用部材に圧縮流体を用いた
要部断面図、第１７図は制振バー加圧部材に強性部材を
用いた一部断面図である。
４・・軸部 ６・・中心盲穴
・・凹円錐面 ９・・制振バー
・・円錐面 １０・・ばね
・・制振部材
ａ、１４ｂ−・円錐こま ２１
・・埋栓 ２３・・弾性部材
・流体Fig. 1 is a vertical cross-sectional view of the anti-vibration boring bar of the present invention, Fig. 2 is an enlarged view of the tip of the anti-vibration bar, Fig. 3 is a diagram of the damping property measurement, Fig. 4 is a compliance measurement diagram of the same, and Fig. 5 is a diagram of the same compliance measurement. Figure 6 is a contact diagram of one end of a conventional damping bar, Figure 6 is a diagram of measuring the damping properties of the conventional bar, Figure 7 is
The figure shows the same compliance measurement diagram, Figure 8 shows the damping property measurement diagram without the damping bar, Figure 9 shows the same compliance measurement diagram, and Figure 10 shows the circle tl/! at the bottom of the blind hole. FIG. 11 is a sectional view of the main part with vibration damping bars in contact with each other at the ends, FIG. 12 is a sectional view of the main part with damping bars arranged in layers of plate-like members, Figure 13 is a cross-sectional view of the main part of a damping bar with a large number of conical pieces arranged in a row, Figure 14 is a partial cross-sectional view showing both ends of the damping bar supported by a conical surface, and Figure 15 is a cross-sectional view of the central blind hole. A partial cross-sectional view showing the bottom and damping bar in contact with the spherical surface, Fig. 16 is a cross-sectional view of the main part using compressed fluid for the MJi bar pressurizing member, and Fig. 17 is a partial cross-sectional view of the damping bar pressurizing member with high strength. It is a partial sectional view using a member. 4... Shaft part 6... Center blind hole... Concave conical surface 9... Damping bar... Conical surface 10... Spring... Vibration damping member a, 14b - Conical top 21... Plug 23... Elastic members/fluid
Claims (2)
盲穴（６）を軸方向に設け、該盲穴内にボリングバーの
振動を減衰させるように作用する制振部材（９、１３、
１４ａ、１４ｂ・・・）を挿入し、該制振部材と前記盲
穴の底部とを小面積にて接触させ、前記制振部材を前記
盲穴の底部に押圧する加圧部材（１０、２１、２２）を
設けたことを特徴とする防振ボーリングバー。(1) A blind hole (6) whose cutting tool side is closed is provided in the main body of the boring bar (T) in the axial direction, and vibration damping members (9, 13,
14a, 14b...), the vibration damping member and the bottom of the blind hole are brought into contact over a small area, and the pressure member (10, 21) presses the vibration damping member against the bottom of the blind hole. , 22).
を取付け、該尖端部を制振部材（９）と接触させるよう
になしたことを特徴とする請求項１記載の防振ボーリン
グバー。(2) A member having a tip at the bottom of the blind hole (11, 15)
2. The vibration-proof boring bar according to claim 1, further comprising: a vibration damping member (9) attached thereto, the pointed end being brought into contact with a vibration damping member (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP738889A JPH02185303A (en) | 1989-01-13 | 1989-01-13 | Vibration-proof boring bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP738889A JPH02185303A (en) | 1989-01-13 | 1989-01-13 | Vibration-proof boring bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02185303A true JPH02185303A (en) | 1990-07-19 |
Family
ID=11664543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP738889A Pending JPH02185303A (en) | 1989-01-13 | 1989-01-13 | Vibration-proof boring bar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02185303A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001096403A (en) * | 1999-09-30 | 2001-04-10 | Kyocera Corp | Cutting tool |
| JP4552214B2 (en) * | 2000-09-05 | 2010-09-29 | エヌティーエンジニアリング株式会社 | Chatter prevention structure for work machines |
| JP2011011276A (en) * | 2009-07-01 | 2011-01-20 | Hitachi Plant Technologies Ltd | Vibration-proof tool |
| JP2014091211A (en) * | 2012-11-02 | 2014-05-19 | Nt Engineering Kk | Chattering preventive structure of work machine |
| JP2015188982A (en) * | 2014-03-28 | 2015-11-02 | マツダ株式会社 | Machining tool |
| US9586266B2 (en) | 2015-01-23 | 2017-03-07 | Kennametal Inc. | Toolholder with tunable passive vibration absorber assembly |
| US9993879B1 (en) | 2016-12-05 | 2018-06-12 | Kennametal Inc | Eddy current vibration absorber assembly for cutting tool |
| JP2019107715A (en) * | 2017-12-15 | 2019-07-04 | マツダ株式会社 | Processing tool |
| JPWO2020129957A1 (en) * | 2018-12-18 | 2021-11-18 | 京セラ株式会社 | Manufacturing method for holders, cutting tools and cutting materials |
-
1989
- 1989-01-13 JP JP738889A patent/JPH02185303A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001096403A (en) * | 1999-09-30 | 2001-04-10 | Kyocera Corp | Cutting tool |
| JP4552214B2 (en) * | 2000-09-05 | 2010-09-29 | エヌティーエンジニアリング株式会社 | Chatter prevention structure for work machines |
| JP2011011276A (en) * | 2009-07-01 | 2011-01-20 | Hitachi Plant Technologies Ltd | Vibration-proof tool |
| JP2014091211A (en) * | 2012-11-02 | 2014-05-19 | Nt Engineering Kk | Chattering preventive structure of work machine |
| JP2015188982A (en) * | 2014-03-28 | 2015-11-02 | マツダ株式会社 | Machining tool |
| US9586266B2 (en) | 2015-01-23 | 2017-03-07 | Kennametal Inc. | Toolholder with tunable passive vibration absorber assembly |
| US9993879B1 (en) | 2016-12-05 | 2018-06-12 | Kennametal Inc | Eddy current vibration absorber assembly for cutting tool |
| JP2019107715A (en) * | 2017-12-15 | 2019-07-04 | マツダ株式会社 | Processing tool |
| JPWO2020129957A1 (en) * | 2018-12-18 | 2021-11-18 | 京セラ株式会社 | Manufacturing method for holders, cutting tools and cutting materials |
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