JPH0321880Y2 - - Google Patents

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Publication number
JPH0321880Y2
JPH0321880Y2 JP1986168831U JP16883186U JPH0321880Y2 JP H0321880 Y2 JPH0321880 Y2 JP H0321880Y2 JP 1986168831 U JP1986168831 U JP 1986168831U JP 16883186 U JP16883186 U JP 16883186U JP H0321880 Y2 JPH0321880 Y2 JP H0321880Y2
Authority
JP
Japan
Prior art keywords
tool
oil
holder
support member
annular groove
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.)
Expired
Application number
JP1986168831U
Other languages
Japanese (ja)
Other versions
JPS6374248U (en
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 filed Critical
Priority to JP1986168831U priority Critical patent/JPH0321880Y2/ja
Publication of JPS6374248U publication Critical patent/JPS6374248U/ja
Application granted granted Critical
Publication of JPH0321880Y2 publication Critical patent/JPH0321880Y2/ja
Expired legal-status Critical Current

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  • Auxiliary Devices For Machine Tools (AREA)

Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は、切削工具を工作機械のスピンドルに
取付けて使用される工具ホルダーに関し、更に詳
しくは工作機械のスピンドルに取付けられるホル
ダー本体と、ホルダー本体を軸受を介して回転可
能に支承する支持部材と、ホルダー本体の内部に
同心状に配置され且つ該ホルダー本体の回転が増
速歯車機構を介して伝達されるようになつてい
て、被駆動軸と、工作機械の固定部材に設けた係
合部に係脱自在に係合して支持部材を非回転状態
に保持するストツパーピンと、からなる工具ホル
ダーにおいて、工具の刃先部に切削油を供給する
ための給油装置に関する。
[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a tool holder that is used by attaching a cutting tool to the spindle of a machine tool, and more specifically relates to a holder body that is attached to the spindle of a machine tool, and a tool holder that is used by attaching a cutting tool to the spindle of a machine tool. A support member that rotatably supports the main body via a bearing, and a driven member that is arranged concentrically inside the holder main body and that rotation of the holder main body is transmitted via a speed increasing gear mechanism. A tool holder consisting of a shaft and a stopper pin that removably engages with an engaging part provided on a fixed member of a machine tool to hold the supporting member in a non-rotating state, supplies cutting oil to the cutting edge of the tool. Relating to a refueling device for

(従来技術及びその問題点) 従来、この種の工具ホルダーにおいては、増速
歯車機構のための伝達歯車や軸受等が多く内蔵さ
れて内部構造が複雑化し、その内部を通した通油
路が設定困難であることから、給油装置は、例え
ば実開昭61−16243号公報に例示されるように、
給油管をホルダーの外部に配管してホルダーと別
体の構造にすると共に、切削油を工具の側方より
その刃先部に供給するようにしている。しかしな
がら、斯る給油装置では取付操作ならびに給油管
先端部の位置設定が面倒である上、肝心の刃先部
の冷却が十分に行えないといつた問題があつた。
(Prior art and its problems) Conventionally, this type of tool holder has a complicated internal structure with many transmission gears and bearings for the speed-increasing gear mechanism, and the oil passage through the inside has become complicated. Since it is difficult to set up, the oil supply device is
The oil supply pipe is installed outside the holder to create a separate structure from the holder, and cutting oil is supplied from the side of the tool to the cutting edge. However, with such a refueling device, the installation operation and positioning of the tip of the refueling pipe are troublesome, and the critical part of the cutting edge cannot be cooled sufficiently.

(問題点を解決するための技術的手段) 本考案は上記の問題を解決するもので、そのた
めの技術的手段は、前記支持部材7と工具取付部
6との間のホルダー外周部に、内周面に環状溝3
4,50を備えた保持リング部材32,32′を
該環状溝34,50の両側にシールリング33,
46を介して相対回転自在に嵌装すると共に、工
具取付部6の内奥空間31と前記環状溝34,5
0とを結ぶ連通路36,36,51〜54を形成
し、且つ前記保持リング部材32,32′には環
状溝34,50より外面に至る導孔35,35′
を形成する一方、支持部材7とストツパーピン9
とに亘つて通油路44,41を貫設し、該通油路
の先端部と前記導孔35,35′とを送油管37,
37′を介して連通連結すると共に、該通油路の
基端部を、工作機械の固定部材38に設けられて
ストツパーピン9との係合部40に開口している
給油路42に着脱自在に連通連結してなることで
ある。
(Technical means for solving the problem) The present invention solves the above problem, and the technical means for that purpose is to provide an internal Annular groove 3 on the circumference
A retaining ring member 32, 32' with a seal ring 33, 4, 50 on each side of the annular groove 34, 50
46 so as to be relatively rotatable, and the inner space 31 of the tool mounting portion 6 and the annular grooves 34, 5
0, and the retaining ring members 32, 32' have guide holes 35, 35' extending from the annular grooves 34, 50 to the outer surface.
On the other hand, the support member 7 and the stopper pin 9
Oil passages 44, 41 are provided through the oil passages 44, 41, and the tips of the oil passages and the guide holes 35, 35' are connected to the oil feed pipes 37, 41.
37', and the base end of the oil passage is removably attached to an oil supply passage 42 which is provided on the fixing member 38 of the machine tool and opens into the engagement part 40 with the stopper pin 9. They are connected and connected.

(実施例) 以下本考案の実施例を図面に基づいて説明する
と、第1図は工具ホルダーを示しており、この図
において1は工作機械のスピンドル2に取付けら
れる丸軸状のホルダー本体であつて、一端部にマ
ニユピレータ用把持部3と先細り状のシヤンク部
4とが同心状に形成され、他端部側にエンドミル
などの切削工具5を取付ける工具取付部としての
チヤツク6が同心状に設けられている。7は支持
部材であつて、前記マニユピレータ用把持部3と
チヤツク6との中間位置で前記ホルダー本体1を
ボールベアリングからなる軸受8を介して回転可
能に支持し、その一端半径方向突出部に形成され
たシリンダー部7aには、後述のように通油路接
続機構を兼用するストツパーピン9が取付けられ
ている。
(Embodiment) An embodiment of the present invention will be described below based on the drawings. Fig. 1 shows a tool holder, and in this figure, 1 is a round shaft-shaped holder body attached to a spindle 2 of a machine tool. A manipulator grip part 3 and a tapered shank part 4 are concentrically formed at one end, and a chuck 6 as a tool attachment part for attaching a cutting tool 5 such as an end mill is concentrically provided at the other end. It is being Reference numeral 7 denotes a support member, which rotatably supports the holder body 1 at an intermediate position between the manipulator grip 3 and the chuck 6 via a bearing 8 consisting of a ball bearing, and has one end formed in a radially protruding portion. A stopper pin 9, which also serves as an oil passage connection mechanism, is attached to the cylinder portion 7a, which will be described later.

このストツパーピン9は、前記シリンダー部7
aにホルダー本体1と平行な方向に摺動可能に内
装され且つシヤンク部4のある側に突出する外筒
10と、この外筒10に螺嵌された内筒11とか
ら構成され、外筒10と内筒11に螺嵌されたロ
ツクナツト12との間で廻り止め部材13が固定
されている。また、前記内筒11の内部には、ス
プリング14とこのスプリング14によつて筒口
11aを閉塞するように付勢された球状弁体15
とから成る逆止弁16が内装されている。17は
前記外筒10を外向きに付勢する圧縮コイルスプ
リングであつて、外筒10の後端面スプリング受
け座18とシリンダー部7aの底面との間に介装
されている。このスプリング17の付勢力によつ
て外向きに外筒10が押し出される結果、不使用
状態に於いては、廻り止め部材13の遊端部がマ
ニユピレータ用把持部3に隣接してホルダー本体
1に設けられた係合溝19に一点鎖線で示すよう
に嵌合し、ホルダー本体1と支持部材7とを相対
回転不能に結合している。
This stopper pin 9 is connected to the cylinder portion 7.
It is composed of an outer cylinder 10 that is slidably installed in the holder body 1 in a direction parallel to the holder body 1 and that protrudes toward the side where the shank part 4 is located, and an inner cylinder 11 that is screwed into this outer cylinder 10. 10 and a lock nut 12 screwed into the inner cylinder 11, a rotation preventing member 13 is fixed. Further, inside the inner cylinder 11, a spring 14 and a spherical valve body 15 biased by the spring 14 to close the cylinder opening 11a are provided.
A check valve 16 consisting of the following is installed inside. A compression coil spring 17 biases the outer cylinder 10 outward, and is interposed between the rear end surface spring receiving seat 18 of the outer cylinder 10 and the bottom surface of the cylinder portion 7a. As a result of the outer tube 10 being pushed outward by the biasing force of the spring 17, the free end of the rotation stopper 13 is adjacent to the manipulator grip 3 and attached to the holder body 1 when not in use. It fits into the provided engagement groove 19 as shown by the dashed line, thereby coupling the holder main body 1 and the support member 7 so that they cannot rotate relative to each other.

ホルダー本体1の内部同軸に増速軸たる被駆動
軸20がボールベアリング21やニードルベアリ
ング22などの軸受23によつて回転自在に嵌合
されると共に、該被駆動軸20の基端部側外周面
に太陽歯車24がくさびキー25によて固着され
ている。そして該太陽歯車24に対応してホルダ
ー本体1の周方向等間隔(3ケ所)に内外に貫通
して3個の遊星歯車26が支軸27に支持され、
且つニードルベアリングからなる軸受28によつ
て遊転自在に設けられ、該遊星歯車26がその内
周側において前記太陽歯車24に噛合し、その外
周側において支持部材7の内周面に設けた内歯歯
車29に噛合することによつて増速歯車機構30
を構成し、該機構30によつてホルダー本体1の
回転が被駆動軸20に格段に増速されて伝達さ
れ、被駆動軸20先端部のチヤツク部6に取付け
られた切削工具5の切削能力を向上せしめるよう
になつている。
A driven shaft 20 serving as a speed-increasing shaft is rotatably fitted inside the holder body 1 by a bearing 23 such as a ball bearing 21 or a needle bearing 22, and the outer periphery of the proximal end of the driven shaft 20 is A sun gear 24 is fixed to the surface by a wedge key 25. Corresponding to the sun gear 24, three planetary gears 26 are supported by a support shaft 27, passing through the holder main body 1 from the inside and outside at equal intervals (3 locations) in the circumferential direction.
The planetary gear 26 meshes with the sun gear 24 on its inner circumferential side, and the inner circumference provided on the inner circumferential surface of the support member 7 on its outer circumferential side. By meshing with the gear 29, the speed increasing gear mechanism 30
The mechanism 30 transmits the rotation of the holder body 1 to the driven shaft 20 at a significantly increased speed, thereby increasing the cutting ability of the cutting tool 5 attached to the chuck portion 6 at the tip of the driven shaft 20. It is starting to improve.

一方、被駆動軸20の先端部側には軸方向に延
びて先端面に開口する穴部20aが設けられてい
ると共に、当該穴部20aの内奥空間31の外側
つまりチヤツク6とホルダー本体1先端との間の
外周面には保持リング部材32が、相対回転可能
にして且つOリングなどのシールリング33,3
3を介して液密状態で嵌合されている。この保持
リング部材32には内周面に環状溝34が両シー
ルリング33,33の間に周設されていると共
に、この環状溝34より外周面に通じる導孔35
が半径方向に貫設されており、そして環状溝34
は、被駆動軸20の先端部に周方向に間隔をおい
て設けられた複数の連通孔36を介して前記内奥
空間31と連通しており、また前記導孔35には
金属管など剛性を有する送油管37の一端部が接
続され、該送油管37の他端部は支持部材7にお
けるシリンダー部7aの開口端部に接続されてい
る。前記穴部31の開口端部に切削工具5の基端
部がチヤツク6を介して挿着され、この工具5の
油穴5aと内奥空間31とが連通連結されてい
る。尚、38は工作機械のフレームなどの固定部
材であつて、その端面に該部材の一部たる係合ブ
ロツク39が一体またはボルト止めなどにより一
体的に設けられ、前記ストツパーピン9の内筒1
1が係嵌して該ストツパーピン9の周方向の移動
を阻止する係合溝40(係合部)と、該内筒11
内部の通油路41と連通する給油路42とが係合
ブロツク39に設けられており、この給油路42
に給油管43が接続してある。
On the other hand, the driven shaft 20 is provided with a hole 20a extending in the axial direction and opening at the tip end side, and the outside of the inner deep space 31 of the hole 20a, that is, the chuck 6 and the holder body 1. A retaining ring member 32 is provided on the outer circumferential surface between the distal end and the retaining ring member 32 to enable relative rotation and seal rings 33 such as O-rings.
3 and are fitted in a liquid-tight manner. This retaining ring member 32 has an annular groove 34 provided on the inner circumferential surface thereof between both seal rings 33, 33, and a guide hole 35 communicating from the annular groove 34 to the outer circumferential surface.
extends radially through the annular groove 34 .
communicates with the inner space 31 via a plurality of communication holes 36 provided at intervals in the circumferential direction at the tip of the driven shaft 20, and the guide hole 35 is made of a rigid material such as a metal tube. One end of an oil feed pipe 37 having a diameter is connected to the oil feed pipe 37, and the other end of the oil feed pipe 37 is connected to an open end of the cylinder portion 7a of the support member 7. The proximal end of the cutting tool 5 is inserted into the open end of the hole 31 via the chuck 6, and the oil hole 5a of the tool 5 and the inner space 31 are connected in communication. Reference numeral 38 denotes a fixing member such as a frame of a machine tool, and an engagement block 39, which is a part of the member, is integrally provided on the end face of the member or fixed by bolts, etc., and the inner cylinder 1 of the stopper pin 9
an engaging groove 40 (engaging portion) in which the stopper pin 1 is engaged and prevents movement of the stopper pin 9 in the circumferential direction;
An oil supply passage 42 communicating with an internal oil passage 41 is provided in the engagement block 39, and this oil supply passage 42
A fuel supply pipe 43 is connected to.

したがつて、給油管43からの切削油は、係合
ブロツク39内の給油路42、ストツパーピン9
の内部通油路41、支持部材7のシリンダー7a
の通油路44、送油管37、導孔35、環状溝3
4、被駆動軸20内の穴部31を経て、工具5の
油穴5aに供給されるようになつている。
Therefore, the cutting oil from the oil supply pipe 43 flows through the oil supply path 42 in the engagement block 39 and the stopper pin 9.
internal oil passage 41, cylinder 7a of support member 7
Oil passage 44, oil pipe 37, guide hole 35, annular groove 3
4. The oil is supplied to the oil hole 5a of the tool 5 through the hole 31 in the driven shaft 20.

次に上述した工具ホルダー及び給油装置の操作
を説明すると、工具ホルダーは、マニユピレータ
用把持部3を介してこの工具ホルダーを把持する
マニユピレータにより、ホルダー1のシヤンク部
4が前記スピンドル2に嵌合し、且つストツパー
ピン9の先端部が工作機械側の固定部材38たる
係合ブロツク39の係合溝40に係嵌し、セツト
される。この結果、支持部材7がホルダー本体1
の軸心の周りで回転することが阻止され、且つス
トツパーピン9がスプリング17の付勢力に抗し
て後退移動せしめられることにより、このピン9
と一体に移動する廻り止め部材13がホルダー本
体1側の係合溝19から離脱して、支持部材7に
対しホルダー本体1が回転可能に切り換えられ
る。そしてスピンドル2の回転により、これを一
体のホルダー本体1が回転するが、このホルダー
本体1の回転は増速歯車機構30により増速され
て被駆動軸20に伝達されることになる。一方、
上記のように工具ホルダーが工作機械にセツトさ
れることによつて、ストツパーピン9及び支持部
材7の内部通油路41,44が工作機械の固定部
材38側の給油路42に自動的に連通連結され、
それにより給油管43から送給されてくる切削油
がストツパーピン9及び支持部材7の内部通油路
41,44を通り更に送油管37、導孔35、環
状溝34、連通孔36、内奥空間31を順次通つ
て工具5の油穴5aに連続的に供給される。
Next, the operation of the tool holder and oil supply device described above will be described. The tool holder is operated by a manipulator that grips the tool holder via a manipulator grip part 3, so that the shank part 4 of the holder 1 is fitted into the spindle 2. , and the tip of the stopper pin 9 is fitted into the engagement groove 40 of the engagement block 39, which is the fixing member 38 on the machine tool side, and is set. As a result, the support member 7 is attached to the holder main body 1
The stopper pin 9 is prevented from rotating around its axis, and the stopper pin 9 is moved backward against the biasing force of the spring 17.
The rotation preventing member 13, which moves together with the holder body 1, is disengaged from the engagement groove 19 on the holder body 1 side, and the holder body 1 is switched to be rotatable relative to the support member 7. The rotation of the spindle 2 causes the integral holder body 1 to rotate, and the rotation of the holder body 1 is increased in speed by the speed increasing gear mechanism 30 and transmitted to the driven shaft 20. on the other hand,
By setting the tool holder on the machine tool as described above, the internal oil passages 41 and 44 of the stopper pin 9 and the support member 7 are automatically connected to the oil supply passage 42 on the fixed member 38 side of the machine tool. is,
As a result, the cutting oil supplied from the oil supply pipe 43 passes through the internal oil passages 41 and 44 of the stopper pin 9 and the support member 7, and further passes through the oil supply pipe 37, the guide hole 35, the annular groove 34, the communication hole 36, and the inner space. 31 and is continuously supplied to the oil hole 5a of the tool 5.

第2図に本考案に係る給油装置の他の実施例を
示したもので、この実施例によれば、ホルダー本
体1の先端側筒部(シヤンク部4と反対側の端部
側)が第1図の実施例のものより適当に長く延長
されていて、この延長筒部45の外周面に保持リ
ング部材32′が相対回転可能に嵌合されている。
しかして、この嵌合位置は被駆動軸20における
穴部20aの内奥空間31の位置に対応してい
る。この保持リング部材32′と延長筒部45と
の間にシールリング46,46が介装してあり、
またこの延長筒部45と被駆動軸20の先端部と
の間には中間リング部材47がそれぞれシールリ
ング48,48,49,49を介して相対回転可
能に介装されている。そして保持リング部材3
2′の内周面には両シールリング46,46の間
に環状溝50が、また中間リング部材47の内外
周面には環状溝51,52がそれぞれ周設してあ
つて、これらの環状溝50,51,52は導孔5
3,54を介して相互に連通しており、また環状
溝51は連通孔36を介して被駆動軸20の内奥
空間31に通じると共に、環状溝50は導孔3
5′にて保持リング部材32′の外周面に通じてお
り、この導孔35′に第1実施例と同様に送油管
37′が接続されている。したがつて送油管3
7′から導孔35′を通り保持リング部材32′の
環状溝50に送られてくる切削油は導孔53、環
状溝52、導孔54、環状溝51及び連通孔36
を通つて内奥空間31に入り、更にそこから工具
5の油穴5aに供給されることになる。他の構造
については第1図の実施例と同じである。この第
2図の実施例によれば、保持リング部材32′が、
被駆動軸20よりも回転速度が遅く且つ直径の大
きいホルダー本体1側に保持されているため、送
油管37′の取付けがより安定する。
FIG. 2 shows another embodiment of the oil supply device according to the present invention. According to this embodiment, the tip side cylindrical portion of the holder body 1 (the end side opposite to the shank portion 4) is The retaining ring member 32' is appropriately extended longer than that of the embodiment shown in FIG.
Therefore, this fitting position corresponds to the position of the inner space 31 of the hole 20a in the driven shaft 20. Seal rings 46, 46 are interposed between this retaining ring member 32' and the extension cylinder part 45,
Further, an intermediate ring member 47 is interposed between the extension cylinder portion 45 and the tip end of the driven shaft 20 through seal rings 48, 48, 49, and 49, respectively, so as to be relatively rotatable. and retaining ring member 3
An annular groove 50 is provided between the seal rings 46 and 46 on the inner circumferential surface of the intermediate ring member 2', and annular grooves 51 and 52 are provided on the inner and outer circumferential surfaces of the intermediate ring member 47, respectively. Grooves 50, 51, 52 are guide holes 5
3 and 54, and the annular groove 51 communicates with the inner space 31 of the driven shaft 20 via the communication hole 36, and the annular groove 50 communicates with the guide hole 3.
It communicates with the outer circumferential surface of the retaining ring member 32' at 5', and an oil feed pipe 37' is connected to this guide hole 35' as in the first embodiment. Therefore, oil pipe 3
The cutting oil sent from 7' through the guide hole 35' to the annular groove 50 of the retaining ring member 32' flows through the guide hole 53, the annular groove 52, the guide hole 54, the annular groove 51, and the communication hole 36.
It enters the inner deep space 31 through the oil hole 5a of the tool 5 from there. The other structures are the same as the embodiment shown in FIG. According to the embodiment of FIG. 2, the retaining ring member 32' is
Since it is held on the side of the holder main body 1, which has a slower rotational speed and a larger diameter than the driven shaft 20, the installation of the oil pipe 37' becomes more stable.

(考案の作用と効果) 本考案は、増速歯車機構を介在する工具ホルダ
ーにおいて、支持部材とストツパーピンとを利用
してそれらに通油路を貫設すると共に、該通油路
の先端部を送油管を介して工具取付部に、またそ
の基端部を、ストツパーピンとの係合部に開口し
ている給油路に係脱自在に連通連結することによ
つて、工具ホルダーと一体的に給油装置を設けた
ものであるから、該増速歯車機構に付随する伝達
歯車や軸受等の内蔵によつて工具ホルダーの内部
構造が非常に複雑化しているにも関わらず、極め
て簡単な構成にて切削油を該工具ホルダー内から
工具の油穴へ供給することができ、もつて切削加
工時に工具の刃先部まで充分に冷却できると共
に、工具ホルダーを工作機械のスピンドルに装着
することによつて自動的に給油装置の取付けを行
うことができ、従来のホルダー外部に配管した給
油管にて工具の外部側方より切削油を供給する給
油装置のような取付操作ならびに位置設定のわず
らわしさが解消される。
(Operations and Effects of the Invention) The present invention provides a tool holder with a speed-increasing gear mechanism in which an oil passage is provided through the support member and a stopper pin, and the tip of the oil passage is Lubrication can be carried out integrally with the tool holder by removably connecting the tool mounting part through the oil supply pipe and its base end to the oil supply path that opens at the engagement part with the stopper pin. Because it is equipped with a device, the internal structure of the tool holder is extremely complicated due to the built-in transmission gears, bearings, etc. associated with the speed increasing gear mechanism, but the structure is extremely simple. Cutting oil can be supplied from inside the tool holder to the oil hole of the tool, and the cutting edge of the tool can be sufficiently cooled during cutting. This eliminates the troublesome installation and positioning required for conventional oil supply devices that supply cutting oil from the outside side of the tool using an oil supply pipe piped outside the holder. Ru.

しかも、本考案の給油装置では、前記送油管の
工具取付部側の接続部はホルダー本体を回転可能
に支承する支持部材と工具取付部との間のホルダ
ー外周部に嵌装した保持リング部材に設定され、
該保持リング部材の導孔および内周の環状溝とそ
の内側の連通路を通して切削油が工具取付部の内
奥空間に導入されるように構成されているため、
給油経路全体が増速歯車機構に伴う複雑な内部構
造部分を避けた形となり、もつて給油経路の複雑
化をまぬがれてその形成のための加工が非常に簡
単となり、給油装置取付けに伴うコスト上昇が少
なくて済む上、増速歯車機構の内部とりわけ軸受
部分への切削油の滲出による悪影響を回避できる
という利点がある。また、上述のように給油路全
体を増速歯車機構に伴う複雑な内部構造部分を避
けて設定できるため、従来の増速歯車機構を有す
る工具ホルダーに対して大幅な仕様変更なく本考
案の給油装置を組込み可能であると共に、工具取
付部の工具を嵌装する孔の内奥には加工上から一
般的に余分な空間が存在するのが普通であるた
め、既存のこの種工具ホルダーについても、当該
内奥空間より外周面に至る連通路と前記ストツパ
ーピンを経由する通油路とを形成する簡単な加工
を施すだけで、送油管および支持リング部材を取
付けて本考案の給油装置付きのものに転換でき
る。
Moreover, in the oil supply device of the present invention, the connection part of the oil pipe on the tool mounting part side is connected to the retaining ring member fitted on the outer periphery of the holder between the support member that rotatably supports the holder body and the tool mounting part. set,
Since the structure is such that the cutting oil is introduced into the deep space of the tool mounting portion through the guide hole of the retaining ring member, the annular groove on the inner periphery, and the communication path inside thereof,
The entire oil supply route avoids the complicated internal structure associated with the speed increasing gear mechanism, which avoids the complexity of the oil supply route and makes the processing to form it extremely simple, which increases the cost associated with installing the oil supply device. This has the advantage that not only is the amount of water reduced, but also the adverse effects of cutting oil leaking into the interior of the speed increasing gear mechanism, especially the bearing portion, can be avoided. In addition, as mentioned above, the entire oil supply path can be set up while avoiding the complicated internal structure associated with the speed-increasing gear mechanism, so there is no need to make any major changes to the specifications of the tool holder with the conventional speed-increasing gear mechanism. In addition to being able to incorporate the device, there is usually an extra space at the back of the hole in the tool mount where the tool is fitted, so it is also possible to incorporate this type of tool holder into the existing tool holder. By simply performing simple processing to form a communication path from the inner space to the outer circumferential surface and an oil passage via the stopper pin, an oil feed pipe and a support ring member can be attached to the oil supply device of the present invention. It can be converted to

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案の一実施例を示す工具ホルダー
の一部縦断正面図、第2図は他の実施例を示す工
具ホルダーの一部縦断正面図である。 1……ホルダー本体、2……スピンドル、5…
…切削工具、6……チヤツク(工具取付部)、7
……支持部材、8……軸受、9……ストツパーピ
ン、20……被駆動軸、30……増速歯車機構、
31……内奥空間、32,32′……保持リング
部材、34,50……環状溝、35,35′……
導孔、36……連通孔(連通路)、37,37′…
…送油管、38……工作機械の固定部材、40…
…係合溝(係合部)、41……ストツパーピンの
内部通油路、42……固定部材の給油路、44…
…支持部材の内部通油路、51,52……環状溝
(連通路)、53,54……導孔(連通路)。
FIG. 1 is a partially longitudinal front view of a tool holder showing one embodiment of the present invention, and FIG. 2 is a partially longitudinal front view of a tool holder showing another embodiment. 1...Holder body, 2...Spindle, 5...
...Cutting tool, 6...Chuck (tool mounting part), 7
... Support member, 8 ... Bearing, 9 ... Stopper pin, 20 ... Driven shaft, 30 ... Speed increasing gear mechanism,
31... Inner space, 32, 32'... Retaining ring member, 34, 50... Annular groove, 35, 35'...
Guide hole, 36...Communication hole (communication path), 37, 37'...
...Oil pipe, 38...Fixing member of machine tool, 40...
...Engagement groove (engaging portion), 41...Internal oil passage of stopper pin, 42...Oil supply passage of fixing member, 44...
... Internal oil passage of the support member, 51, 52... Annular groove (communication path), 53, 54... Guide hole (communication path).

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 工作機械のスピンドルに取付けられるホルダー
本体と、ホルダー本体を軸受を介して回転可能に
支承する支持部材と、ホルダー本体の内部に同心
状に配置され且つ該ホルダー本体の回転が増速歯
車機構を介して伝達されるようになつていて、外
方側端部に工具取付部を有する被駆動軸と、工作
機械の固定部材に設けた係合部に係脱自在に係合
して支持部材を非回転状態に保持するストツパー
ピンと、からなる工具ホルダーにおいて、前記支
持部材と工具取付部との間のホルダー外周部に、
内周面に環状溝を備えた保持リング部材を該環状
溝の両側にシールリングを介して相対回転自在に
嵌装すると共に、工具取付部の内奥空間と前記環
状溝とを結ぶ連通路を形成し、且つ前記保持リン
グ部材には環状溝より外面に至る導孔を形成する
一方、支持部材とストツパーピンとに亘つて通油
路を貫設し、該通油路の先端部と前記導孔とを送
油管を介して連通連結すると共に、該通油路の基
端部を、工作機械の固定部材に設けられてストツ
パーピンとの係合部に開口している給油路に係脱
自在に連通連結してなる給油装置。
A holder body that is attached to the spindle of a machine tool, a support member that rotatably supports the holder body via a bearing, and a support member that is arranged concentrically inside the holder body and that rotates the holder body through a speed increasing gear mechanism. The driven shaft, which has a tool attachment part at its outer end, removably engages with an engaging part provided on a stationary member of the machine tool, thereby locking the support member. A tool holder consisting of a stopper pin that is held in a rotating state, on the outer periphery of the holder between the support member and the tool attachment part,
A retaining ring member having an annular groove on the inner circumferential surface is fitted on both sides of the annular groove through seal rings so as to be relatively rotatable, and a communication path is provided to connect the deep space of the tool mounting portion and the annular groove. A guide hole extending from the annular groove to the outer surface is formed in the retaining ring member, and an oil passage is provided extending between the support member and the stopper pin, and the tip of the oil passage and the guide hole are formed. are connected to each other via an oil supply pipe, and the base end of the oil passage is removably connected to an oil supply passage provided in a fixed member of the machine tool and opening at a portion engaging with a stopper pin. A connected oil supply system.
JP1986168831U 1986-10-31 1986-10-31 Expired JPH0321880Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986168831U JPH0321880Y2 (en) 1986-10-31 1986-10-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986168831U JPH0321880Y2 (en) 1986-10-31 1986-10-31

Publications (2)

Publication Number Publication Date
JPS6374248U JPS6374248U (en) 1988-05-18
JPH0321880Y2 true JPH0321880Y2 (en) 1991-05-13

Family

ID=31102074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986168831U Expired JPH0321880Y2 (en) 1986-10-31 1986-10-31

Country Status (1)

Country Link
JP (1) JPH0321880Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2744887B2 (en) * 1994-05-23 1998-04-28 大昭和精機株式会社 Lubrication device in tool holder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5515946U (en) * 1978-07-17 1980-01-31
JPS58206342A (en) * 1982-05-21 1983-12-01 セコ・トウールズ・アクテイエボラーク Device for transferring fluid to rotary tool holder
JPS6116243B2 (en) * 1979-05-10 1986-04-28 Lion Corp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58126148U (en) * 1982-02-16 1983-08-27 黒田精工株式会社 tool holder device
JPS58169939U (en) * 1982-05-06 1983-11-12 大昭和精機株式会社 Cutting tool mounting unit with oil hole
JPS6116243U (en) * 1984-07-04 1986-01-30 大昭和精機株式会社 Rotary tool for chamfering

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5515946U (en) * 1978-07-17 1980-01-31
JPS6116243B2 (en) * 1979-05-10 1986-04-28 Lion Corp
JPS58206342A (en) * 1982-05-21 1983-12-01 セコ・トウールズ・アクテイエボラーク Device for transferring fluid to rotary tool holder

Also Published As

Publication number Publication date
JPS6374248U (en) 1988-05-18

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