JPH0847840A - Tool holder - Google Patents
Tool holderInfo
- Publication number
- JPH0847840A JPH0847840A JP18442194A JP18442194A JPH0847840A JP H0847840 A JPH0847840 A JP H0847840A JP 18442194 A JP18442194 A JP 18442194A JP 18442194 A JP18442194 A JP 18442194A JP H0847840 A JPH0847840 A JP H0847840A
- Authority
- JP
- Japan
- Prior art keywords
- tool
- liquid supply
- supply hole
- stopper bolt
- holder
- 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
Links
Landscapes
- Auxiliary Devices For Machine Tools (AREA)
- Jigs For Machine Tools (AREA)
- Gripping On Spindles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、内部に給液孔を備え
る工具ホルダに関し、詳しくは、給液孔に取付けられて
工具の突出し量を調節するストッパボルトの構造に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool holder having a liquid supply hole inside, and more particularly, to a structure of a stopper bolt attached to the liquid supply hole for adjusting the protruding amount of the tool.
【０００２】[0002]
【従来の技術】マシニングセンタ等を用いたフライス加
工においては、ドリル加工やエンドミル加工、タップ加
工、ボーリング加工等を行なう場合、切削位置に切削液
を供給し、潤滑や冷却を行なう必要が生じる場合があ
る。2. Description of the Related Art In milling using a machining center or the like, when performing drilling, end milling, tapping, boring, etc., it may be necessary to supply cutting fluid to a cutting position for lubrication and cooling. is there.
【０００３】図８は、ホルダの内部を通して切削液を供
給できるようにした従来の工具ホルダの構造を示してい
る。FIG. 8 shows the structure of a conventional tool holder capable of supplying cutting fluid through the inside of the holder.
【０００４】この工具は、ホルダシャンク４１の先端部
に、コレットチャック４２を用いて工具２を装着する工
具装着孔４３を設け、ホルダシャンク４１の内部に、シ
ャンクの後端から工具装着孔４３まで貫通する給液孔４
４を設け、その給液孔４４のねじ部４５に取付けたスト
ッパボルト４６に工具２の背面を当接させて工具２の突
出し量を調節している。This tool is provided with a tool mounting hole 43 for mounting the tool 2 using a collet chuck 42 at the tip of the holder shank 41, and inside the holder shank 41 from the rear end of the shank to the tool mounting hole 43. Liquid supply hole 4 which penetrates
4 is provided, and the back surface of the tool 2 is brought into contact with the stopper bolt 46 attached to the screw portion 45 of the liquid supply hole 44 to adjust the protruding amount of the tool 2.
【０００５】上記の工具ホルダでは、フライス加工機の
主軸から給液孔４４に導入された切削液が、ストッパボ
ルト４６の内部孔４７を通して工具２の背面へ送られ、
工具２の内部に形成した貫通孔２ａを通して工具の先端
位置へ供給される。In the above tool holder, the cutting fluid introduced from the spindle of the milling machine into the liquid supply hole 44 is sent to the back surface of the tool 2 through the internal hole 47 of the stopper bolt 46.
It is supplied to the tip position of the tool through a through hole 2a formed inside the tool 2.
【０００６】[0006]
【発明が解決しようとする課題】上記構造で成る工具ホ
ルダにおいては、給液孔４４とストッパボルト４６の間
に液漏れがあると、切削液がホルダシャンク４１内部で
逆流する状態になり、工具２に安定した切削液の供給が
出来なくなる不具合が生じる。In the tool holder having the above structure, if there is a liquid leak between the liquid supply hole 44 and the stopper bolt 46, the cutting liquid will flow back inside the holder shank 41, and the tool 2 causes a problem that the stable supply of cutting fluid cannot be achieved.
【０００７】このため、従来のストッパボルト４６は、
ボルトと給液孔４４間のシール性を高めるために、給液
孔４４のねじ部４５の途中に接着剤等によってナット４
８を液密に固定し、そのナット４８の内部孔４９にシー
ルリング５１を介して調整ボルト５０を移動自在に挿通
させた構造をとっており、固定のナット４８を介在させ
ることにより切削液の逆流を防止している。Therefore, the conventional stopper bolt 46 is
In order to improve the sealing property between the bolt and the liquid supply hole 44, the nut 4 is attached to the screw portion 45 of the liquid supply hole 44 by an adhesive or the like.
8 is liquid-tightly fixed, and the adjusting bolt 50 is movably inserted into the inner hole 49 of the nut 48 via the seal ring 51. By interposing the fixed nut 48, Prevents backflow.
【０００８】しかし、上記のようなボルト構造では、調
整ボルト５０の移動量が、ねじ部４５の端部と固定のナ
ット４８との間の距離に限定されるために、ねじ部４５
の全長にわたる調節ができず、工具突出し長さの調整量
が小さくなる問題がある。However, in the bolt structure as described above, the amount of movement of the adjusting bolt 50 is limited to the distance between the end of the threaded portion 45 and the fixed nut 48, so that the threaded portion 45 is formed.
There is a problem that the adjustment amount of the tool protrusion length becomes small because the adjustment cannot be performed over the entire length of the tool.
【０００９】また、通常の使用時では、厚みのあるナッ
ト４８と調整ボルト５０が所定のすき間５２を介して軸
方向に直列した状態になるため、ストッパボルト４６全
体の軸方向スペースが大きくなり、所要の調節量を得る
ためにホルダシャンク４１自体の全長が大きくならざる
を得ない問題がある。Further, during normal use, the thick nut 48 and the adjusting bolt 50 are axially connected in series with each other through the predetermined clearance 52, so that the axial space of the entire stopper bolt 46 becomes large. There is a problem that the total length of the holder shank 41 itself must be increased to obtain the required adjustment amount.
【００１０】さらに、ナット４８の外周面を接着剤等に
よって機械的に給液孔４４に固定する構造では、ナット
４８の外周面を完全に液密状態でシールすることが難し
く、ナット４８からの液漏れによって切削液の逆流が生
じやすい問題もあった。Further, in the structure in which the outer peripheral surface of the nut 48 is mechanically fixed to the liquid supply hole 44 with an adhesive or the like, it is difficult to completely seal the outer peripheral surface of the nut 48 in a liquid-tight state. There was also a problem that the backflow of the cutting fluid is likely to occur due to the fluid leakage.
【００１１】そこで、この発明は、上記の問題を解決
し、給液孔とストッパボルト間での切削液の逆流を確実
に防止でき、しかもコンパクトなスペースでストッパボ
ルトの調整を行なうことができるホルダ構造を提供する
ことを目的としている。Therefore, the present invention solves the above-mentioned problems, can reliably prevent the back flow of cutting fluid between the liquid supply hole and the stopper bolt, and can adjust the stopper bolt in a compact space. It is intended to provide a structure.
【００１２】[0012]
【課題を解決するための手段】上記の課題を解決するた
め、この発明は、ストッパボルトを、給液孔の軸線方向
に配列される２つの操作部材と、その両操作部材の間に
挾み込まれる弾性部材とから構成し、両操作部材を接近
離反可能にねじ結合すると共に、弾性部材の外周面に給
液孔のねじ部に螺合するねじ山を形成し、一方の操作部
材と弾性部材の接触面に、その操作部材が弾性部材に向
かって押し込まれた時に弾性部材を拡径変形させるテー
パ面を形成した構造としたのである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a stopper bolt which is sandwiched between two operating members arranged in the axial direction of a liquid supply hole and between the operating members. It is composed of an elastic member to be inserted, and both operating members are screwed so that they can move toward and away from each other, and a screw thread to be screwed into the thread portion of the liquid supply hole is formed on the outer peripheral surface of the elastic member. The contact surface of the member is formed with a taper surface for expanding and deforming the elastic member when the operating member is pushed toward the elastic member.
【００１３】なお、上記の構造において、２つの操作部
材のうち、一方の操作部材の外周面に、上記給液孔のね
じ部に螺合するねじ山を形成するようにしてもよい。In the above structure, one of the two operating members may be provided with a thread on the outer peripheral surface thereof to be screwed into the thread portion of the liquid supply hole.
【００１４】[0014]
【作用】上記の構造においては、ねじ結合する２つの操
作部材を接近させ、一方の操作部材を弾性部材に押し込
むことにより、テーパ面の作用によって弾性部材を拡径
させ、弾性部材のねじ山を給液孔のねじ部に圧着させ
る。これにより、ストッパボルトの位置固定とボルト外
周の液密なシールを行なうことができる。In the above structure, the two operating members to be screwed are brought close to each other, and one of the operating members is pushed into the elastic member to expand the diameter of the elastic member by the action of the tapered surface, so that the thread of the elastic member is Crim it to the screw part of the liquid supply hole. As a result, the position of the stopper bolt can be fixed and the outer periphery of the bolt can be liquid-tightly sealed.
【００１５】一方、ストッパボルトの取付位置を変化さ
せる場合は、両操作部材のねじ結合を緩めて離反させ、
弾性部材の拡径状態を解除する。これにより、弾性部材
のねじ山と給液孔の圧着が緩むため、ボルト全体を回転
操作して所要の位置へ移動させる。On the other hand, when changing the mounting position of the stopper bolt, loosen the screw connection of both operating members and separate them.
Cancel the expanded state of the elastic member. This loosens the crimp between the thread of the elastic member and the liquid supply hole, so that the entire bolt is rotated to move it to a desired position.
【００１６】[0016]
【実施例】図１乃至図３は、この発明の第１の実施例を
示している。ホルダシャンク１は、前端部に、工具保持
用のコレットチャック３が嵌まり込むテーパ孔４が形成
され、そのテーパ孔４にコレットチャック３を嵌め込ん
だ状態で締付けナット５によってテーパ孔４に押込むこ
とにより、コレットチャック３が縮径し、その内側に挿
入した工具２を保持固定する。1 to 3 show a first embodiment of the present invention. The holder shank 1 has a taper hole 4 formed at a front end portion thereof into which a collet chuck 3 for holding a tool is fitted. By collapsing, the diameter of the collet chuck 3 is reduced, and the tool 2 inserted inside the collet chuck 3 is held and fixed.
【００１７】上記ホルダシャンク１の内部には、その後
端部からテーパ孔４にかけて軸方向に貫通する給液孔６
が形成されている。この給液孔６は、後端側にプルスタ
ッドボルト取付用のねじ部７が形成され、前端側にスト
ッパボルト用のねじ部８が形成されており、そのねじ部
８にストッパボルト９が取付けられている。Inside the holder shank 1, a liquid supply hole 6 extending axially from the rear end to the tapered hole 4 is formed.
Are formed. The liquid supply hole 6 has a threaded portion 7 for mounting a pull stud bolt on the rear end side and a threaded portion 8 for a stopper bolt on the front end side. The stopper bolt 9 is mounted on the threaded portion 8. Has been.
【００１８】このストッパボルト９は、図１及び図２に
示すように、軸方向に配列した第１操作部材１０と第２
操作部材１１を、ねじ部１３によって接近離反可能に結
合し、その両操作部材１０、１１の間に弾性リング１２
を挾み込んだ構造でなっており、第１操作部材１０と弾
性リング１２の外周面に、それぞれ給液孔６のねじ部８
と螺合するねじ山１４と１５を形成している。As shown in FIGS. 1 and 2, the stopper bolt 9 includes a first operating member 10 and a second operating member 10 which are axially arranged.
The operating member 11 is coupled by a screw portion 13 so as to be able to approach and separate from each other, and an elastic ring 12 is provided between the operating members 10 and 11.
Has a structure in which the screw portion 8 of the liquid supply hole 6 is provided on the outer peripheral surfaces of the first operating member 10 and the elastic ring 12, respectively.
To form threads 14 and 15 which are screwed together.
【００１９】この第１操作部材１０と弾性リング１２
は、第１操作部材１０と弾性リング１２の端面に形成し
た半径方向の溝１６にキー部材１７を係合することで互
いに回り止めされ、一体で回転するようになっている。
なお、この第１操作部材１０と弾性リング１２は、接着
等によって連結してもよい。The first operating member 10 and the elastic ring 12
The key members 17 engage with the radial grooves 16 formed on the end faces of the first operating member 10 and the elastic ring 12 to prevent them from rotating and rotate integrally.
The first operating member 10 and the elastic ring 12 may be connected by adhesion or the like.
【００２０】上記第１操作部材１０と第２操作部材１１
は、鉄などの金属で形成され、弾性リング１２は、ウレ
タンや合成ゴム等の弾性材料で形成されている。The first operating member 10 and the second operating member 11
Is made of a metal such as iron, and the elastic ring 12 is made of an elastic material such as urethane or synthetic rubber.
【００２１】また、第２操作部材１１と弾性リング１２
の接触面には、それぞれ第２操作部材１１から弾性部材
１２に向かって次第に小径となる円錐状のテーパ面１
８、１９が形成され、第２操作部材１１が弾性部材１２
に押し込まれた場合、テーパ面１８、１９の嵌合により
弾性リング１２が押し拡げられ、拡径変形するようにな
っている。Further, the second operating member 11 and the elastic ring 12
On the contact surfaces of the conical tapered surfaces 1 each having a diameter gradually decreasing from the second operating member 11 toward the elastic member 12.
8 and 19 are formed, and the second operating member 11 is the elastic member 12
When it is pushed in, the elastic ring 12 is pushed and expanded by the fitting of the tapered surfaces 18 and 19 to be expanded and deformed.
【００２２】ここで、第２操作部材１１の外径面は、給
液孔６のねじ部８より小さく形成され、その端面に、後
述のパイプ治具２４の爪が係合する溝２０が形成されて
いる。Here, the outer diameter surface of the second operating member 11 is formed smaller than the threaded portion 8 of the liquid supply hole 6, and a groove 20 with which a claw of a pipe jig 24 described later engages is formed on the end surface thereof. Has been done.
【００２３】また、第１操作部材１０の内部には、切削
液の通過路となる貫通孔２１が形成され、その貫通孔２
１の端部に、後述するレンチ治具２６の先端が係合する
レンチ２２が形成されている。Further, a through hole 21 serving as a passage for the cutting fluid is formed inside the first operating member 10, and the through hole 2 is formed.
A wrench 22 with which a tip of a wrench jig 26, which will be described later, engages is formed at one end of the wrench 22.
【００２４】さらに、第１操作部材１０の工具と当接す
る端面には、貫通孔２１の周囲をめぐるシールリング２
３が取付けられている。Further, at the end face of the first operating member 10 which comes into contact with the tool, the seal ring 2 surrounding the through hole 21 is provided.
3 is attached.
【００２５】実施例の工具ホルダは上記のような構造で
あり、ストッパボルト９を所定の位置に固定する場合
は、第１操作部材１０と第２操作部材１１を互いに接近
させ、第２操作部材１１を弾性リング１２に押し込むよ
うに操作する。The tool holder of the embodiment has the above-mentioned structure. When the stopper bolt 9 is fixed at a predetermined position, the first operating member 10 and the second operating member 11 are brought close to each other and the second operating member is moved. It operates so that 11 may be pushed in the elastic ring 12.
【００２６】この作業は、先ず、図３に示すように、第
２操作部材１１の溝２０にパイプ治具２４の爪２５を係
合させ、そのパイプ治具２４の内部に挿通したレンチ治
具２６の先端を、第１操作部材１０のレンチ溝２２にね
じ込み、その状態でパイプ治具２４又はレンチ治具２６
の一方を相対的に回転させる。これにより、第１操作部
材１０と第２操作部材１１は一方が固定された状態で他
方が回されるため、ねじ部１３による推進により、両操
作部材１０、１１が軸方向に接近移動する。In this work, first, as shown in FIG. 3, the claw 25 of the pipe jig 24 is engaged with the groove 20 of the second operating member 11, and the wrench jig inserted into the pipe jig 24 is inserted. The tip of the screw 26 is screwed into the wrench groove 22 of the first operating member 10, and in that state, the pipe jig 24 or the wrench jig 26.
Rotate one relatively. As a result, one of the first operating member 10 and the second operating member 11 is rotated while the other is rotated, so that the operating members 10 and 11 are moved closer to each other in the axial direction by the propulsion by the screw portion 13.
【００２７】このように第２操作部材１１が弾性リング
１２に向かって移動すると、テーパ面１８、１９の嵌合
作用によって弾性リング１２が拡径変形し、弾性リング
１２外周面のねじ山１５が給液孔６のねじ部８に圧着す
る。このねじ山１５とねじ部８の圧着により、弾性リン
グ１２の外周面が給液孔６にすき間なく圧着されるた
め、ストッパボルト９の外周からの液漏れが確実に防止
されると共に、ストッパボルト９の動きが固定される。When the second operating member 11 moves toward the elastic ring 12 in this manner, the elastic ring 12 is expanded and deformed by the fitting action of the tapered surfaces 18 and 19, and the thread 15 on the outer peripheral surface of the elastic ring 12 is deformed. It is crimped onto the screw portion 8 of the liquid supply hole 6. By crimping the thread 15 and the screw portion 8, the outer peripheral surface of the elastic ring 12 is crimped tightly to the liquid supply hole 6, so that liquid leakage from the outer periphery of the stopper bolt 9 can be reliably prevented, and at the same time, the stopper bolt The movement of 9 is fixed.
【００２８】上記のようにストッパボルト９を固定する
と、コレットチャック３に挿入した工具２１の背面を第
１操作部材１０の端面に当接して工具の突出し量を決定
し、給液孔６に導入した切削液を、ストッパボルト９の
貫通孔２１を通して工具２の内部に供給する。When the stopper bolt 9 is fixed as described above, the back surface of the tool 21 inserted into the collet chuck 3 is brought into contact with the end surface of the first operating member 10 to determine the amount of protrusion of the tool, and the tool is introduced into the liquid supply hole 6. The cutting fluid is supplied into the tool 2 through the through hole 21 of the stopper bolt 9.
【００２９】一方、工具の突出し量を変えるため、スト
ッパボルト９の固定位置を変化させる場合は、パイプ治
具２４とねじレンチ治具２６を用いて第１操作部材１０
と第２操作部材１１を引き離す方向に回転操作し、弾性
リング１２の変形状態を解除する。On the other hand, when the fixing position of the stopper bolt 9 is changed in order to change the protruding amount of the tool, the pipe jig 24 and the screw wrench jig 26 are used to change the first operating member 10.
Then, the second operating member 11 is rotated in the direction of separating it, and the deformed state of the elastic ring 12 is released.
【００３０】これにより、ストッパボルト９全体が回動
可能な状態になるため、レンチ治具２６を回転操作して
ねじ部８に沿ってストッパボルト９を移動させる。スト
ッパボルト９が所要の位置までくると、上述したように
パイプ治具２４とレンチ治具２６を用いて弾性リング１
２を拡径させ、ストッパボルト９の固定とシールを同時
に行なう。As a result, the stopper bolt 9 as a whole becomes rotatable, so that the wrench jig 26 is rotated to move the stopper bolt 9 along the screw portion 8. When the stopper bolt 9 reaches the required position, the elastic ring 1 is moved by using the pipe jig 24 and the wrench jig 26 as described above.
The diameter of 2 is expanded, and the stopper bolt 9 is fixed and sealed at the same time.
【００３１】上記のように、この実施例のストッパボル
トでは、弾性リング１２の圧着を緩めた状態で、ストッ
パボルト９をねじ部８のどの位置にも自由に移動させて
固定できるので、ねじ部８の全長にわたって移動量を確
保でき、工具２の突出し長さの調節量を大きくとること
ができる。As described above, in the stopper bolt of this embodiment, the stopper bolt 9 can be freely moved and fixed to any position of the threaded portion 8 with the elastic ring 12 being loosely crimped. The amount of movement can be secured over the entire length of 8, and the amount of adjustment of the protruding length of the tool 2 can be made large.
【００３２】図４及び図５は第２の実施例を示してい
る。この例は、上述した第１の実施例に対して、第１操
作部材１０と第２操作部材１１の位置を逆転させた構造
をしており、第２操作部材１１を、第１操作部材１０の
内径側に設けたねじ孔３１に結合している。FIGS. 4 and 5 show a second embodiment. This example has a structure in which the positions of the first operating member 10 and the second operating member 11 are reversed with respect to the first embodiment described above, and the second operating member 11 is replaced by the first operating member 10. Is connected to a screw hole 31 provided on the inner diameter side of the.
【００３３】また、第１操作部材１０と第２操作部材１
１の内部に、切削液流通用の貫通孔３２、３３を形成
し、第２操作部材１１の貫通孔３３に、レンチ溝３４を
形成している。Further, the first operating member 10 and the second operating member 1
Through holes 32 and 33 for circulating the cutting fluid are formed inside 1, and a wrench groove 34 is formed in the through hole 33 of the second operating member 11.
【００３４】上記の構造では、第１操作部材１０をねじ
治具で固定した状態で、給液孔６の後端部から挿入した
レンチ治具３５によって第２操作部材１１を回転させる
ことにより、両操作部材１０、１１を軸方向に接近離反
させ、弾性リング１２を変形させる。In the above structure, the second operating member 11 is rotated by the wrench jig 35 inserted from the rear end of the liquid supply hole 6 while the first operating member 10 is fixed by the screw jig. Both the operating members 10 and 11 are moved toward and away from each other in the axial direction to deform the elastic ring 12.
【００３５】また、図６及び図７は第３の実施例を示
し、この例では、第２の実施例において第１操作部材１
０を弾性リング１２の内側に嵌入させ、弾性リング１２
の外周面にだけ給液孔６のねじ部８と螺合するねじ山１
５を形成している。6 and 7 show a third embodiment. In this example, the first operating member 1 in the second embodiment is used.
0 is fitted inside the elastic ring 12,
Screw thread 1 that is screwed onto the threaded portion 8 of the liquid supply hole 6 only on the outer peripheral surface of the
5 is formed.
【００３６】なお、他の構造は第２の実施例と同じであ
るため、同一部品は同一の符号を付して説明を省略す
る。Since the other structure is the same as that of the second embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.
【００３７】[0037]
【効果】以上のように、この発明は、２つの操作部材の
間で弾性部材を変形させ、その変形により弾性部材を給
液孔に圧着させてストッパボルトの外周シールと固定と
を行なうため、ボルトのシールと固定が１回の操作で簡
単にできると共に、給液孔とボルト間の液漏れを確実に
防止することができ、安定したホルダの使用を可能にす
ることができる。As described above, according to the present invention, the elastic member is deformed between the two operating members, and the deformation causes the elastic member to be pressed against the liquid supply hole to seal and fix the outer periphery of the stopper bolt. The bolt can be easily sealed and fixed by one operation, and the liquid leakage between the liquid supply hole and the bolt can be reliably prevented, so that the stable holder can be used.
【００３８】また、ストッパボルトは、接着剤等で給液
孔に固定される部品がなく、給液孔のねじ部全長にわた
って移動させることができるので、工具の突出し長さの
調整量を大きくとれる利点がある。Further, since the stopper bolt does not have a part fixed to the liquid supply hole with an adhesive or the like and can be moved over the entire length of the thread portion of the liquid supply hole, the amount of adjustment of the protruding length of the tool can be made large. There are advantages.
【図１】第１の実施例を示す縦断面図FIG. 1 is a vertical sectional view showing a first embodiment.
【図２】同上のストッパボルトの分解斜視図FIG. 2 is an exploded perspective view of the above stopper bolt.
【図３】同上のストッパボルトの操作作業を示す一部縦
断面図FIG. 3 is a partial vertical cross-sectional view showing the operation work of the above stopper bolt.
【図４】第２の実施例を示す縦断面図FIG. 4 is a vertical sectional view showing a second embodiment.
【図５】同上のストッパボルトの分解斜視図FIG. 5 is an exploded perspective view of the above stopper bolt.
【図６】第３の実施例を示す縦断面図FIG. 6 is a vertical sectional view showing a third embodiment.
【図７】同上のストッパボルトの分解斜視図FIG. 7 is an exploded perspective view of the above stopper bolt.
【図８】従来例を示す縦断面図FIG. 8 is a vertical sectional view showing a conventional example.
１ ホルダシャンク ２ 工具 ３ コレットチャック ６ 給液孔 ７、８ ねじ部 ９ ストッパボルト １０ 第１操作部材 １１ 第２操作部材 １２ 弾性リング １３ ねじ部 １４、１５ ねじ山 １８、１９ テーパ面 ３１ ねじ孔 1 Holder Shank 2 Tool 3 Collet Chuck 6 Liquid Supply Hole 7, 8 Screw Part 9 Stopper Bolt 10 First Operating Member 11 Second Operating Member 12 Elastic Ring 13 Screw Part 14, 15 Thread Crest 18, 19 Tapered Surface 31 Screw Hole
Claims (2)
に、ホルダ全長にわたって貫通する給液孔を設け、その
給液孔に設けたねじ部に、貫通孔を有するストッパボル
トを取付け、このストッパボルトと工具を当接させて工
具の突出し量を調節する工具ホルダにおいて、上記スト
ッパボルトを、給液孔の軸線方向に配列される２つの操
作部材と、その両操作部材の間に挾み込まれる弾性部材
とから構成し、上記両操作部材を接近離反可能にねじ結
合すると共に、弾性部材の外周面に上記給液孔のねじ部
に螺合するねじ山を形成し、上記一方の操作部材と弾性
部材の接触面に、その操作部材が弾性部材に向かって押
し込まれた時に弾性部材を拡径変形させるテーパ面を形
成したことを特徴とする工具ホルダ。1. A holder shank for mounting a tool is provided with a liquid supply hole penetrating over the entire length of the holder, and a stopper bolt having a through hole is attached to a screw portion provided in the liquid supply hole. In a tool holder that abuts a tool to adjust the amount of protrusion of the tool, the stopper bolt is provided with two operating members arranged in the axial direction of the liquid supply hole and an elastic member sandwiched between the operating members. The operation member is screwed so as to be able to move toward and away from each other, and a screw thread is formed on the outer peripheral surface of the elastic member to be screwed into the thread portion of the liquid supply hole. A tool holder characterized in that a taper surface is formed on a contact surface of the member to expand and deform the elastic member when the operating member is pushed toward the elastic member.
部材の外周面に、上記給液孔のねじ部に螺合するねじ山
を形成したことを特徴とする請求項１に記載の工具ホル
ダ。2. The tool according to claim 1, wherein one of the two operating members has a thread formed on the outer peripheral surface thereof so as to be screwed into the thread portion of the liquid supply hole. holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18442194A JP2698757B2 (en) | 1994-08-05 | 1994-08-05 | Tool holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18442194A JP2698757B2 (en) | 1994-08-05 | 1994-08-05 | Tool holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0847840A true JPH0847840A (en) | 1996-02-20 |
| JP2698757B2 JP2698757B2 (en) | 1998-01-19 |
Family
ID=16152873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18442194A Expired - Lifetime JP2698757B2 (en) | 1994-08-05 | 1994-08-05 | Tool holder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2698757B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002263929A (en) * | 2001-03-13 | 2002-09-17 | Big Alpha Co Ltd | Collet and block for collet |
| CN102513857A (en) * | 2011-12-13 | 2012-06-27 | 株洲钻石切削刀具股份有限公司 | Tool clamp capable of adjusting overhang amount of tool in a large range |
| US20150048576A1 (en) * | 2013-08-13 | 2015-02-19 | Good-Tec Co., Ltd. | Machining Tool Holder With Vibration Preventing Capability and Lubricating Function |
-
1994
- 1994-08-05 JP JP18442194A patent/JP2698757B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002263929A (en) * | 2001-03-13 | 2002-09-17 | Big Alpha Co Ltd | Collet and block for collet |
| CN102513857A (en) * | 2011-12-13 | 2012-06-27 | 株洲钻石切削刀具股份有限公司 | Tool clamp capable of adjusting overhang amount of tool in a large range |
| US20150048576A1 (en) * | 2013-08-13 | 2015-02-19 | Good-Tec Co., Ltd. | Machining Tool Holder With Vibration Preventing Capability and Lubricating Function |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2698757B2 (en) | 1998-01-19 |
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