JP2002120115A - Tool holder - Google Patents
Tool holderInfo
- Publication number
- JP2002120115A JP2002120115A JP2000310460A JP2000310460A JP2002120115A JP 2002120115 A JP2002120115 A JP 2002120115A JP 2000310460 A JP2000310460 A JP 2000310460A JP 2000310460 A JP2000310460 A JP 2000310460A JP 2002120115 A JP2002120115 A JP 2002120115A
- Authority
- JP
- Japan
- Prior art keywords
- tool holder
- chuck
- tool
- shank
- chuck portion
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
- B23P11/027—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold for mounting tools in tool holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、工具ホルダ、特
に、ドリル、エンドミル、砥石等の工具を焼嵌め式で保
持して工作機械の主軸に取り付けるための工具ホルダに
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool holder, and more particularly to a tool holder for holding a tool such as a drill, an end mill, a grindstone or the like in a shrink-fit manner and mounting the tool on a spindle of a machine tool.
【０００２】[0002]
【発明の背景】近年、工作機械の高速送りによる加工時
間の短縮や、難削材の加工に対応するため、高速回転主
軸のニーズが高まっている。高速回転主軸では、遠心力
の影響を大きく受けることとなり、テーパのみの結合か
らなるＢＴ（ＭＡＳ規格）主軸では遠心力の影響で主軸
穴が拡径し、工具ホルダが主軸内にさらに引き込まれる
といった問題点を有している。BACKGROUND OF THE INVENTION In recent years, there has been an increasing need for a high-speed rotating spindle in order to reduce the processing time due to high-speed feeding of a machine tool and to cope with difficult-to-cut materials. The high-speed rotating spindle is greatly affected by the centrifugal force, and the BT (MAS standard) spindle, which consists of only a taper, expands the spindle hole under the influence of the centrifugal force, and the tool holder is further drawn into the spindle. Has problems.
【０００３】そこで、前記問題点を解消するために、テ
ーパのみの結合ではなく、主軸端面と工具ホルダのフラ
ンジ端面を当接させることで、回転数の上昇に伴うＺ軸
方向の移動を防ぐことができ、また、加工時に生じる工
具ホルダの倒れを少なくすることを可能としている。し
かし、これに伴って、マシニングセンター等の主軸と工
具ホルダを結合するための方式が多様化する傾向にあ
り、ＢＴ（ＭＡＳ４０３−１９８２）、ＨＳＫ（ＤＩＮ
６９８９３）等の工業規格で定められた形状とは異なる
メーカーオリジナルの主軸を備えた工作機械も多く見ら
れるようになっている。Therefore, in order to solve the above-mentioned problem, it is necessary to prevent the movement in the Z-axis direction due to an increase in the number of revolutions by making the end face of the main spindle and the end face of the flange of the tool holder come into contact with each other instead of connecting only the taper. In addition, it is possible to reduce the inclination of the tool holder that occurs during machining. However, along with this, there has been a tendency to diversify a method for coupling a spindle and a tool holder such as a machining center to a tool holder, such as BT (MAS403-1982) and HSK (DIN
For example, machine tools having a manufacturer's original main shaft different from the shape defined by an industrial standard such as 69893) have come to be seen.
【０００４】一方、主軸の高速回転に適した工具ホルダ
としては、工具を焼嵌め式で把持するものが注目を集め
ている。焼嵌め式の工具ホルダは、従来最もポピュラー
な工具ホルダであるコレットチャックと比較して、把握
力、精度、剛性、回転バランス等の性能を高めることが
可能である。高速回転に対応するためには、回転バラン
スと遠心力により低下する把握力が重要であり、焼嵌め
式の工具ホルダはコレットチャックの２〜４倍の把握力
を持ち、回転バランスについても締付け用の部品が無い
ので、工具の着脱に伴う回転バランスのばらつきが発生
しないのである。On the other hand, as a tool holder suitable for high-speed rotation of a spindle, a tool holder that grips a tool by shrink fitting has attracted attention. Shrink-fit type tool holders can improve performance such as gripping force, accuracy, rigidity, rotational balance, and the like, as compared with collet chucks, which are conventionally the most popular tool holders. In order to cope with high-speed rotation, it is important that the rotation balance and the gripping force reduced by the centrifugal force are important. Since there is no such component, there is no variation in the rotational balance due to the attachment and detachment of the tool.
【０００５】さらに、焼嵌め式工具ホルダの利点として
は、加工に耐えうる最小限の工具把持部の肉厚と把持長
を持つことであり、他の方式の工具ホルダと異なってチ
ャック部の外形形状をある程度自由に設計できることで
ある。そして、加工時の工具ホルダと加工物や治具との
干渉を防ぐ最適形状を採用することで他の工具ホルダと
比較して剛性が高まり、加工時間の短縮や加工精度の向
上を図ることができる。Another advantage of the shrink-fitting tool holder is that it has a minimum thickness and a holding length of a tool holding portion that can withstand machining. The shape can be freely designed to some extent. By adopting an optimal shape that prevents interference between the tool holder and the workpiece or jig during machining, rigidity is increased compared to other tool holders, and machining time can be shortened and machining accuracy can be improved. it can.
【０００６】実際の販売面においても、カタログに記載
された標準品以外のユーザー指定のチャック部形状を有
する特殊品の要望が非常に多く、受注後製作による納期
の長期化、少量製作によるハイコストにも拘わらず、ニ
ーズが途絶えることがないのが現状である。[0006] In actual sales, there are very many demands for special products having a user-specified chuck shape other than the standard products described in the catalog. Nevertheless, the current situation is that needs are not interrupted.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、機械主
軸の多様化、ユーザーニーズに最適なチャック部外形形
状を満たした焼嵌め式の工具ホルダを短納期かつ安価で
ユーザーに提供するためには、いくつかの問題点をクリ
アする必要がある。However, in order to diversify the machine spindle and provide the user with a shrink-fitting type tool holder satisfying the outer shape of the chuck portion which is optimal for the user's needs at a short delivery time and at a low cost, there are several methods. It is necessary to clear these problems.
【０００８】まず、短納期で提供するには、在庫を揃え
ておくことが必要となるが、シャンク部形状、チャック
部形状が多様化すると、在庫の種類が膨大なものにな
る。例えば、１０種類のシャンクと１０種類のチャック
部穴径、５種類のチャック部長さ、３種類のチャック部
肉厚をシリーズ化すると、１５００種類の在庫が必要に
なり、実際それだけの種類を在庫とすることは困難であ
る。また、種類の増加は小ロット多品種となり、時間当
たりの生産量が低下し、製品単価を押し上げる原因にな
っている。即ち、短納期で安価な焼嵌め式の工具ホルダ
を開発することが強く要望されている。First, in order to provide the product in a short delivery time, it is necessary to keep the stock in stock. However, if the shape of the shank portion and the shape of the chuck portion are diversified, the type of stock becomes enormous. For example, if ten types of shanks, ten types of chuck part hole diameters, five types of chuck part lengths, and three types of chuck part wall thickness are made into a series, 1500 types of stock will be required, and in fact, only that kind will be in stock. It is difficult to do. In addition, the increase in types leads to a large number of small lots, resulting in a decrease in production per hour and an increase in product prices. That is, there is a strong demand for the development of an inexpensive shrink-fit type tool holder with a short delivery time.
【０００９】そこで、本発明の目的は、種類が多様化し
ても在庫が少なくて短期に納品することができると共
に、安価に製作することができ、かつ、シャンク部とチ
ャック部をそれぞれの機能に適合した最適な材質を選択
することのできる焼嵌め式の工具ホルダを提供すること
にある。Therefore, an object of the present invention is to reduce the stock even if the types are diversified, to be able to deliver the product in a short period of time, to manufacture it at low cost, and to provide the shank portion and the chuck portion with their respective functions. It is an object of the present invention to provide a shrink-fit type tool holder capable of selecting a suitable optimum material.
【００１０】[0010]
【発明の構成、作用及び効果】以上の目的を達成するた
め、本発明は、一方に工作機械に取り付けられるシャン
ク部を有し、他方に工具を焼嵌め式にて把持するための
略円筒形のチャック部を有する工具ホルダにおいて、前
記シャンク部と前記チャック部とが別体であって、か
つ、異なる材質から製作されていることを特徴とする。SUMMARY OF THE INVENTION In order to achieve the above objects, the present invention has a substantially cylindrical shape for holding a shank portion attached to a machine tool on one side and holding a tool by shrink fitting on the other side. The shank portion and the chuck portion are separate members and are made of different materials.
【００１１】本発明に係る工具ホルダにおいて、シャン
ク部とチャック部とは、溶接、摩擦圧接、ロウ付け又は
接着のいずれかにて接合されていてもよく、あるいは、
焼嵌め式にて結合されていてもよい。シャンク部とチャ
ック部を焼嵌め式で結合する場合には、筒状の凹部と凸
部の組合せとし、該凹部と凸部はそれぞれの周面でのみ
接触していることが好ましい。また、異なる材質とは、
特に、チャック部がシャンク部よりも熱膨張率の大きい
材質からなることが好ましい。In the tool holder according to the present invention, the shank portion and the chuck portion may be joined by any of welding, friction welding, brazing, or bonding, or
They may be joined by shrink fitting. When the shank portion and the chuck portion are joined by shrink fitting, a combination of a cylindrical concave portion and a convex portion is preferable, and the concave portion and the convex portion are preferably in contact with each other only on their respective peripheral surfaces. Also, different materials are
In particular, it is preferable that the chuck portion is made of a material having a higher coefficient of thermal expansion than the shank portion.
【００１２】本発明に係る工具ホルダにあっては、シャ
ンク部とチャック部とを予め別体で製作して在庫として
おき、必要に応じてシャンク部とチャック部とを結合さ
せる。その後、高精度を要求されるシャンク部の外周テ
ーパとチャック部の工具把持穴の何れかを基準にして加
工を行う。これにて、種類が多様化しても在庫が少なく
て済み、短期の納品が可能になり、安価に市販すること
ができる。In the tool holder according to the present invention, the shank portion and the chuck portion are separately manufactured in advance and stocked, and the shank portion and the chuck portion are connected as needed. After that, machining is performed based on either the outer peripheral taper of the shank portion, which requires high accuracy, or the tool holding hole of the chuck portion. As a result, even if the types are diversified, the stock is small, short-term delivery is possible, and the product can be marketed at low cost.
【００１３】さらに、本発明に係る工具ホルダにあって
は、シャンク部とチャック部は異なる材質から製作され
るため、それぞれに最も好ましい材質を選択でき、工具
の把握力を大きく安定化させることができる。即ち、チ
ャック部に対して工具を焼嵌めにより着脱する際、特
に、温風ヒーター等の加熱速度が比較的緩やかな場合に
おいては、工具の熱膨張率に対してチャック部の熱膨張
率が大きいことが必要となり、また、膨張率の差が大き
いほど低い温度での着脱が可能になり、着脱時間の短縮
や材質変態の防止にも効果的である。また、同じ温度ま
で加熱した場合焼嵌め時の締め代も大きくすることがで
き、把握力が大きくなる。Further, in the tool holder according to the present invention, since the shank portion and the chuck portion are manufactured from different materials, the most preferable materials can be selected for each, and the gripping force of the tool can be greatly stabilized. it can. That is, when the tool is attached to and detached from the chuck portion by shrink fitting, particularly when the heating speed of the hot air heater or the like is relatively slow, the thermal expansion coefficient of the chuck portion is larger than that of the tool. In addition, the larger the difference in the expansion coefficient, the more the attachment / detachment at a lower temperature becomes possible, which is effective for shortening the attachment / detachment time and preventing the material transformation. In addition, when heated to the same temperature, the interference at the time of shrink fitting can be increased, and the grasping power is increased.
【００１４】[0014]
【発明の実施の形態】以下、本発明に係る工具ホルダの
実施形態について添付図面を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a tool holder according to the present invention will be described below with reference to the accompanying drawings.
【００１５】（第１実施形態、図参照）図１において、
本発明の第１実施形態である工具ホルダ１０は、別体の
シャンク部１１とチャック部１５とで構成されている。
また、４０は切削工具である。図１（Ａ）は結合する前
のシャンク部１１とチャック部１５を示し、図１（Ｂ）
は結合後であって切削工具４０をチャック部１５に焼嵌
めにて把持した状態を示す。(First Embodiment, see FIG.) In FIG.
The tool holder 10 according to the first embodiment of the present invention includes a separate shank portion 11 and a chuck portion 15.
Reference numeral 40 denotes a cutting tool. FIG. 1A shows the shank portion 11 and the chuck portion 15 before joining, and FIG.
Shows a state after cutting, in which the cutting tool 40 is gripped on the chuck portion 15 by shrink fitting.
【００１６】シャンク部１１は、機械主軸に嵌合される
テーパ部分１２と、マニュピレータにて把持される環状
溝部１３と、チャック部１５と結合するための円筒状凹
部１４とで構成されている。チャック部１５は、貫通す
る穴部１６と、シャンク部１１に把持される円筒状凸部
１７と、切削工具４０の後端部分を把持するためのチャ
ック部分１８とで構成されている。The shank portion 11 is composed of a tapered portion 12 fitted to the main shaft of the machine, an annular groove portion 13 gripped by a manipulator, and a cylindrical concave portion 14 for coupling with the chuck portion 15. The chuck portion 15 includes a through hole 16, a cylindrical convex portion 17 gripped by the shank portion 11, and a chuck portion 18 for gripping a rear end portion of the cutting tool 40.
【００１７】シャンク部１１は例えば、ＳＣＭ４１５、
ＳＮＣＭ４２０、ＳＫＤ６１（いずれもＪＩＳ規格）等
にて、チャック部１５は例えば、ＳＵＨ６６０（ＪＩＳ
規格）、ＮＴＫ Ｈ−１（日本金属工業（株）製）、Ａ
ＵＳ２０５（愛知製鋼（株）製）、ＨＰＭ７５（日立金
属（株）製）等にて、それぞれ別体に製作され、常温に
おいてシャンク部１１の円筒状凹部１４の内径は、チャ
ック部１５の円筒状凸部１７の外径よりも僅かに小さく
設定されている。そして、シャンク部１１の円筒状凹部
１４を加熱して拡径した後、該凹部１４にチャック部１
５の円筒状凸部１７を挿入し、常温に戻すことで焼嵌め
にて結合する。The shank section 11 is, for example, an SCM415,
In SNCM420 and SKD61 (both are JIS standards) and the like, the chuck unit 15 is, for example, SUH660 (JIS).
Standard), NTK H-1 (Nippon Metal Industry Co., Ltd.), A
US205 (manufactured by Aichi Steel Co., Ltd.), HPM75 (manufactured by Hitachi Metals, Ltd.), etc., are manufactured separately. At room temperature, the inner diameter of the cylindrical recess 14 of the shank 11 is It is set slightly smaller than the outer diameter of the projection 17. After the cylindrical recess 14 of the shank 11 is heated to expand the diameter, the chuck 1 is inserted into the recess 14.
The cylindrical projection 17 of No. 5 is inserted and returned to room temperature, thereby joining by shrink fitting.
【００１８】その後、シャンク部１１のテーパ部分１２
を基準としてチャック部１５の穴部１６を所定の内径に
仕上げ加工することで、シャンク部１１とチャック部１
５とが一体に構成された従来の工具ホルダと同等の精度
を確保できる。また、切削工具４０は焼嵌め式にてチャ
ック部１５のチャック部分１８（穴部１６の先端部分）
に把持される。Thereafter, the tapered portion 12 of the shank 11
The hole 16 of the chuck portion 15 is finished to a predetermined inner diameter with reference to the shank portion 11 and the chuck portion 1.
5 can be as accurate as a conventional tool holder integrally formed. Further, the cutting tool 40 is a shrink-fit type chuck portion 18 of the chuck portion 15 (a tip portion of the hole portion 16).
Is gripped.
【００１９】ところで、シャンク部１１とチャック部１
５とを焼嵌め式で結合する場合、加熱した円筒状凹部１
４に常温の円筒状凸部１７を挿入する際、凸部１７の端
面が凹部１４に接触すると凹部１４の熱分布が不均一に
なり、常温まで冷却されるときに凹部１４の収縮に伴っ
て凸部１７が軸方向に圧縮されて残留応力が発生する。
そして、工具４０の着脱時の加熱により凹凸部１４，１
７も熱伝導により加熱され、前記残留応力の解放が発生
し、工具ホルダとしての精度が維持できなくなる。従っ
て、凹部１４と凸部１７はそれぞれの周面でのみ接触す
るように結合させることが好ましい。The shank 11 and the chuck 1
5 is joined by shrink fitting, the heated cylindrical recess 1
When inserting the cylindrical convex portion 17 at room temperature into the concave portion 4, if the end face of the convex portion 17 contacts the concave portion 14, the heat distribution of the concave portion 14 becomes non-uniform. The convex portion 17 is compressed in the axial direction to generate a residual stress.
Then, the uneven portions 14, 1 are heated by heating when the tool 40 is attached and detached.
7 is also heated by heat conduction, release of the residual stress occurs, and the precision as a tool holder cannot be maintained. Therefore, it is preferable that the concave portion 14 and the convex portion 17 are connected so as to be in contact only with their respective peripheral surfaces.
【００２０】また、従来、この種の工具ホルダに用いら
れている材質は、加工性について長年研究されているこ
とと、量産的効果もあり、比較的安価でありながら加工
性にも優れている。しかし、熱膨張率が比較的高くかつ
強度も大きい材質は、高価であり加工も困難である。こ
のような材質を使用する必要のあるのは、少なくともチ
ャック部１５であり、シャンク部１１にはそこまでのス
ペックを要求されない。本第１実施形態では、シャンク
部１１とチャック部１５とは別体であるため、チャック
部１５のみこのような高スペックの材質を使用し、シャ
ンク部１１にはより安価な材質を使用してコストを下げ
ることができる。Conventionally, the material used for this kind of tool holder has been studied for workability for many years, has the effect of mass production, and is relatively inexpensive and excellent in workability. . However, a material having a relatively high coefficient of thermal expansion and a large strength is expensive and difficult to process. It is at least the chuck portion 15 that needs to use such a material, and the shank portion 11 is not required to have such specifications. In the first embodiment, since the shank portion 11 and the chuck portion 15 are separate members, only the chuck portion 15 is made of such a high-spec material, and the shank portion 11 is made of a less expensive material. Costs can be reduced.
【００２１】（第２実施形態、図２参照）本第２実施形
態である工具ホルダ２０は、図２に示すように、前記第
１実施形態と基本的には同様の構成からなり、異なるの
は、シャンク部１１のテーパ部分１２が短くなっている
点である。従って、図１と同じ部分には同じ符号を付
し、その説明は省略する。(Second Embodiment, see FIG. 2) As shown in FIG. 2, the tool holder 20 of the second embodiment has basically the same configuration as that of the first embodiment, and differs therefrom. Is that the tapered portion 12 of the shank portion 11 is shortened. Therefore, the same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.
【００２２】（第３実施形態、図３参照）本第３実施形
態である工具ホルダ３０は、図３に示すように、前記第
１実施形態と基本的には同様の構成からなり、異なるの
は、チャック部１５に鍔部分１９を形成した点にある。
従って、図１と同じ部分には同じ符号を付し、その説明
は省略する。(Third Embodiment, See FIG. 3) As shown in FIG. 3, the tool holder 30 of the third embodiment has basically the same configuration as the first embodiment, and differs therefrom. Is that a flange portion 19 is formed on the chuck portion 15.
Therefore, the same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.
【００２３】この鍔部分１９は、チャック部１５の円筒
状凸部１７をシャンク部１１の円筒状凹部１４に挿入す
る際の挿入量を規制するためのものである。鍔部分１９
で挿入量を規制することによりシャンク部１１とチャッ
ク部１５を焼嵌めで結合する際、過挿入によってチャッ
ク部１５の端部が凹部１４の底部に接触することを確実
に防止できる。The flange portion 19 regulates an insertion amount when the cylindrical convex portion 17 of the chuck portion 15 is inserted into the cylindrical concave portion 14 of the shank portion 11. Tsuba part 19
When the shank portion 11 and the chuck portion 15 are joined by shrink fitting by restricting the amount of insertion, the end of the chuck portion 15 can be reliably prevented from contacting the bottom of the concave portion 14 due to excessive insertion.
【００２４】なお、鍔部分１９を設けることは前記第
１，２実施形態においても適用することができる。ま
た、過挿入の防止は適当な挿入規制具をシャンク部１１
又はチャック部１５に取り付けることでも達成すること
ができる。The provision of the flange portion 19 can be applied to the first and second embodiments. In order to prevent excessive insertion, a proper insertion restricting tool should be used.
Alternatively, it can be achieved by attaching to the chuck portion 15.
【００２５】（他の実施形態）なお、本発明に係る工具
ホルダは、前記実施形態に限定するものではなく、その
要旨の範囲内で種々に変更することができる。(Other Embodiments) The tool holder according to the present invention is not limited to the above embodiment, but can be variously modified within the scope of the gist.
【００２６】特に、チャック部やシャンク部の基本的な
形状や構造は任意である。また、それらの材質も種々の
ものを組み合わせて用いることができる。さらに、チャ
ック部とシャンク部との結合は、焼嵌め方式以外に溶
接、摩擦圧接、ロウ付け、接着等種々の手段を用いるこ
とができる。In particular, the basic shape and structure of the chuck portion and the shank portion are arbitrary. In addition, various materials can be used in combination. Furthermore, various means such as welding, friction welding, brazing, bonding and the like can be used for joining the chuck portion and the shank portion in addition to the shrink fitting method.
【図１】第１実施形態である工具ホルダを示し、（Ａ）
は分解した状態での一部断面図、（Ｂ）は組み立てた状
態での一部断面図。FIG. 1 shows a tool holder according to a first embodiment, and FIG.
3 is a partial cross-sectional view in a disassembled state, and FIG. 3B is a partial cross-sectional view in an assembled state.
【図２】第２実施形態である工具ホルダを示す一部断面
図。FIG. 2 is a partial cross-sectional view showing a tool holder according to a second embodiment.
【図３】第３実施形態である工具ホルダを示す一部断面
図。FIG. 3 is a partial cross-sectional view showing a tool holder according to a third embodiment.
１０，２０，３０…工具ホルダ １１…シャンク部 １２…テーパ部分 １４…円筒状凹部 １５…チャック部 １７…円筒状凸部 １８…チャック部分 ４０…切削工具 10, 20, 30 ... Tool holder 11 ... Shank part 12 ... Tapered part 14 ... Cylindrical concave part 15 ... Chuck part 17 ... Cylindrical convex part 18 ... Chuck part 40 ... Cutting tool
Claims (5)
ク部を有し、他方に工具を焼嵌め式にて把持するための
略円筒形のチャック部を有する工具ホルダにおいて、前
記シャンク部と前記チャック部とが別体であって、か
つ、異なる材質から製作されていることを特徴とする工
具ホルダ。1. A tool holder having a shank portion attached to a machine tool on one side and a substantially cylindrical chuck portion for gripping a tool by shrink fitting on the other side, wherein the shank portion and the chuck portion are provided. And a separate tool holder, and are made of different materials.
溶接、摩擦圧接、ロウ付け又は接着のいずれかにて接合
されていることを特徴とする請求項１記載の工具ホル
ダ。2. The shank portion and the chuck portion,
The tool holder according to claim 1, wherein the tool holder is joined by any one of welding, friction welding, brazing, and bonding.
嵌め式にて結合されていることを特徴とする請求項１記
載の工具ホルダ。3. The tool holder according to claim 1, wherein the shank portion and the chuck portion are joined by shrink fitting.
熱膨張率の大きい材質からなることを特徴とする請求項
３記載の工具ホルダ。4. The tool holder according to claim 3, wherein the chuck portion is made of a material having a higher coefficient of thermal expansion than the shank portion.
合部は筒状の凹部と凸部の組合せからなり、該凹部と凸
部はそれぞれの周面でのみ接触していることを特徴とす
る請求項３又は請求項４記載の工具ホルダ。5. A coupling portion between the shank portion and the chuck portion is formed of a combination of a cylindrical concave portion and a convex portion, and the concave portion and the convex portion are in contact only on their respective peripheral surfaces. The tool holder according to claim 3 or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000310460A JP2002120115A (en) | 2000-10-11 | 2000-10-11 | Tool holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000310460A JP2002120115A (en) | 2000-10-11 | 2000-10-11 | Tool holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002120115A true JP2002120115A (en) | 2002-04-23 |
Family
ID=18790415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000310460A Pending JP2002120115A (en) | 2000-10-11 | 2000-10-11 | Tool holder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002120115A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040023064A (en) * | 2002-09-10 | 2004-03-18 | 현대자동차주식회사 | a method and apparatus for fixing tool |
| FR2862896A1 (en) * | 2003-11-28 | 2005-06-03 | Fournel | Cutting tools assembling device for assembling tools in tool holder, has cutting tools including shanks of different diameters and being fitted in bores of different diameters, of respective reducers fitted in single tool holder |
| EP1541265A2 (en) * | 2003-12-09 | 2005-06-15 | Bilz Werkzeugfabrik GmbH & Co. KG | Tool holder for the shrink-fitting of rotary tools with predominantly cylindrical shafts |
| WO2007042104A2 (en) * | 2005-10-14 | 2007-04-19 | P + L Gmbh & Co. Kg | Process and device for detachably clamping a tool on a spindle shaft of a machine-tool |
| US7556461B2 (en) * | 2007-05-01 | 2009-07-07 | Chin-Chiu Chen | Thermal expansion knife adapter |
| JP2009287619A (en) * | 2008-05-28 | 2009-12-10 | Parts Seiko:Kk | Height adjusting device, and manufacturing method for screw spindle for height adjusting device |
| EP2543459A1 (en) * | 2007-04-18 | 2013-01-09 | COOK, Harold D. | Tool holder dampening system |
-
2000
- 2000-10-11 JP JP2000310460A patent/JP2002120115A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040023064A (en) * | 2002-09-10 | 2004-03-18 | 현대자동차주식회사 | a method and apparatus for fixing tool |
| FR2862896A1 (en) * | 2003-11-28 | 2005-06-03 | Fournel | Cutting tools assembling device for assembling tools in tool holder, has cutting tools including shanks of different diameters and being fitted in bores of different diameters, of respective reducers fitted in single tool holder |
| EP1541265A2 (en) * | 2003-12-09 | 2005-06-15 | Bilz Werkzeugfabrik GmbH & Co. KG | Tool holder for the shrink-fitting of rotary tools with predominantly cylindrical shafts |
| EP1541265A3 (en) * | 2003-12-09 | 2006-03-01 | Bilz Werkzeugfabrik GmbH & Co. KG | Tool holder for the shrink-fitting of rotary tools with predominantly cylindrical shafts |
| US7137185B2 (en) | 2003-12-09 | 2006-11-21 | Bilz Werkzeugfabrik Gmbh & Co. Kg | Tool holder for shrink-fit attachment of rotating tools with predominantly cylindrical shafts |
| WO2007042104A2 (en) * | 2005-10-14 | 2007-04-19 | P + L Gmbh & Co. Kg | Process and device for detachably clamping a tool on a spindle shaft of a machine-tool |
| WO2007042104A3 (en) * | 2005-10-14 | 2007-08-09 | P&L Gmbh & Co Kg | Process and device for detachably clamping a tool on a spindle shaft of a machine-tool |
| EP2543459A1 (en) * | 2007-04-18 | 2013-01-09 | COOK, Harold D. | Tool holder dampening system |
| US7556461B2 (en) * | 2007-05-01 | 2009-07-07 | Chin-Chiu Chen | Thermal expansion knife adapter |
| JP2009287619A (en) * | 2008-05-28 | 2009-12-10 | Parts Seiko:Kk | Height adjusting device, and manufacturing method for screw spindle for height adjusting device |
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