JPH0563740U - Tool holder - Google Patents
Tool holderInfo
- Publication number
- JPH0563740U JPH0563740U JP1252192U JP1252192U JPH0563740U JP H0563740 U JPH0563740 U JP H0563740U JP 1252192 U JP1252192 U JP 1252192U JP 1252192 U JP1252192 U JP 1252192U JP H0563740 U JPH0563740 U JP H0563740U
- Authority
- JP
- Japan
- Prior art keywords
- holder
- tool
- main body
- movable pin
- support member
- 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
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- Jigs For Machine Tools (AREA)
Abstract
(57)【要約】
【構成】 工作機械８の固定部８ｂと可動ピン１３との
係合によって支持部材５が非回転状態に保持される工具
ホルダーにおいて、ホルダー本体１のフランジ部３の先
端側周縁部を切欠してこれに環状段部３１が形成され、
該環状段部３１に位置決めリング９がホルダー本体１に
対して相対回転位置を調整可能に取付けられ、該位置決
めリング９に廻り止め部材１５と係合する係合部１０が
形成されている。
【効果】 位置決めリング９自体をフランジ部３の一部
として規定のフランジ幅を確保できると共に、該リング
９による工具ホルダーの長さ増大が避けられ、ホルダー
本体１のコンパクト化に貢献することができる。
(57) [Summary] [Construction] In the tool holder in which the support member 5 is held in a non-rotating state by the engagement of the fixed portion 8b of the machine tool 8 and the movable pin 13, the tip side of the flange portion 3 of the holder body 1 The peripheral edge is cut out and the annular step portion 31 is formed in it.
The positioning ring 9 is attached to the annular step portion 31 so that the relative rotational position with respect to the holder body 1 can be adjusted, and the positioning ring 9 is formed with an engaging portion 10 that engages with the rotation preventing member 15. [Effects] The positioning ring 9 itself can be used as a part of the flange portion 3 to secure a prescribed flange width, and an increase in the length of the tool holder due to the ring 9 can be avoided, which contributes to downsizing of the holder body 1. .
Description
【０００１】[0001]
本考案は、工作機械、主として数値制御工作機械（ＮＣ工作機械）の工具駆動 用回転主軸にセットして使用される回転切削工具取付け用の工具ホルダーに関す る。 The present invention relates to a tool holder for mounting a rotary cutting tool which is used by being set on a tool driving rotary spindle of a machine tool, mainly a numerically controlled machine tool (NC machine tool).
【０００２】[0002]
この種の工具ホルダーは、先端側に工具取付部を有し、基端側に工作機械の回 転主軸に連結するシャンク部とマニピュレータ把持用の凹溝を有するフランジ部 とが連設されたホルダー本体と、前記工具取付部とフランジ部との間にベアリン グを介して嵌装されて該ホルダー本体を回転自在に支持する環状の支持部材とを 備えるが、工作機械への非装着時におけるホルダー本体と支持部材との相対回転 を阻止するため、一般的に廻り止め機構が付設されている。 This type of tool holder has a tool mounting part on the tip side and a shank part connected to the rotating spindle of the machine tool and a flange part with a groove for holding the manipulator on the base end side. The holder includes a body and an annular support member that is fitted between the tool mounting portion and the flange portion via bearings to rotatably support the holder body. In order to prevent relative rotation between the main body and the support member, a rotation stop mechanism is generally provided.
【０００３】 この廻り止め機構は、通常、支持部材の一側方にホルダー本体と平行にかつ該 本体基端側へ突出状に取付けられて一定範囲内で出退移動可能な可動ピンと、こ の可動ピンを突出方向に付勢するスプリングと、該可動ピンに一体的に取付けら れた突片状の廻り止め部材とから構成されており、工作機械への非装着時には前 記スプリングの付勢によって可動ピンが出限位置にあり、この出限位置において 廻り止め部材がホルダー本体の前記フランジ部の先端側端面に設けた係合部に係 合して該本体と支持部材との相対回転を阻止する一方、同装着時には前記可動ピ ンが工作機械側の固定部に押圧係合してスプリングの付勢に抗して退入移動し、 これに伴って回り止め部材の前記係合部に対する係合が自動的に解除されるよう になされている。This anti-rotation mechanism is usually a movable pin that is attached to one side of the support member in parallel with the holder main body and projecting toward the base end side of the main body so that it can move back and forth within a certain range. It consists of a spring that biases the movable pin in the protruding direction, and a protrusion-shaped anti-rotation member that is integrally attached to the movable pin. The movable pin is at the limit position, and at this limit position, the anti-rotation member engages with the engaging portion provided on the tip end side end surface of the flange portion of the holder main body to allow relative rotation between the main body and the support member. On the other hand, when the same is mounted, the movable pin presses and engages with the fixed part on the machine tool side and moves back and forth against the bias of the spring, and accordingly, the detent member with respect to the engaging part. To automatically disengage Has been done.
【０００４】 このように廻り止め機構付の工具ホルダーにあっては、該機構の廻り止め部材 が係脱自在に係合するため係合部をホルダー本体側に設けなければならず、この ため従来にあってはホルダー本体の前記フランジ部を軸方向に肉厚に形成し、こ の肉厚部分に前記係合部を凹入形成するようにしていた。As described above, in the tool holder with the detent mechanism, the detent member of the mechanism must be provided on the holder body side so that the detent member engages in a detachable manner. In this case, the flange portion of the holder body is formed to be thick in the axial direction, and the engaging portion is recessed in the thick portion.
【０００５】 一方、このような工具ホルダーにおいて、前記可動ピンの先端よりホルダー本 体の工具取付部の工具挿入孔に至る流体通路を設け、外部から供給される圧縮空 気や切削油を該通路を通して切削工具先端の放出孔より導出して、切削部の冷却 ならびに切り粉の排出を行うようにしたものが知られる。この流体通路は、ホル ダー本体の回転駆動中に常に連通状態を保持させる必要から、該本体と支持部材 との界面間に環状流路を構成し、この環状流路を介して本体側と支持部材側の両 流路が接続されるようになっている。しかして、この環状流路の両側における前 記本体と支持部材との界面には、それぞれ流体の漏出を防止するためにＯリング が嵌装されている。On the other hand, in such a tool holder, a fluid passage extending from the tip of the movable pin to the tool insertion hole of the tool mounting portion of the holder body is provided, and compressed air or cutting oil supplied from the outside is supplied to the passage. It is known that the material is led out from the discharge hole at the tip of the cutting tool to cool the cutting part and discharge chips. Since this fluid passage must be maintained in a communicating state during rotation of the holder main body, an annular flow path is formed between the interface between the main body and the support member, and the main body side is supported via this annular flow path. Both flow paths on the member side are connected. Then, O-rings are fitted to the interfaces between the main body and the support member on both sides of the annular flow path in order to prevent fluid leakage.
【０００６】[0006]
上述のように従来例にあっては、ホルダー本体の前記フランジ部を軸方向に肉 厚に形成していたのは、前記廻り止め部材が十分に深く係合するための係合部を 切欠形成するためであるが、これがためにこのフランジ部の肉厚に制約されてホ ルダー本体の軸方向長さを短くすることに制約があり、コンパクト化のネックと なっていた。 As described above, in the conventional example, the flange portion of the holder body is formed to be thick in the axial direction because the engagement portion for engaging the detent member sufficiently deeply is notched. However, this was restricted by the wall thickness of this flange, and there was a restriction on shortening the axial length of the holder body, which was a bottleneck for compactness.
【０００７】 そこで本考案は、前記フランジ部の軸方向の肉厚をできるだけ薄くしても、こ れに十分な深さの係合部を形成することができ、これによってホルダー本体の、 特に軸方向長さを短くしコンパクト化のネックを払拭することを第１の目的とす るものである。Therefore, according to the present invention, even if the thickness of the flange portion in the axial direction is made as thin as possible, the engaging portion having a sufficient depth can be formed. The first purpose is to shorten the length in the direction and wipe the neck of compactness.
【０００８】 一方、前記の流体通路を有する従来の工具ホルダーでは、ホルダー本体と支持 部材との摺接部で環状流路と両側のベアリング間にそれぞれＯリングによる封止 領域を設けることから、支持部材の嵌装部が広幅となり、それだけホルダー本体 の全長が長くなってこの面からもコンパクト化に一定の制約があった。On the other hand, in the conventional tool holder having the above-mentioned fluid passage, since the sealing area by the O-ring is provided between the annular flow path and the bearings on both sides at the sliding contact portion between the holder body and the supporting member, The fitting part of the member becomes wide, and the total length of the holder body becomes longer accordingly, and there was a certain restriction on compactness from this aspect.
【０００９】 本考案は、上述の状況に鑑み、前記封止領域の軸方向幅可能な限り短くするこ とによってこの面からもホルダー本体のコンパクト化に貢献することを第２の目 的としている。In view of the above situation, the present invention has a second object to contribute to downsizing of the holder body also from this aspect by making the axial width of the sealing region as short as possible. ..
【００１０】[0010]
上記の目的を達成するために、本考案の工具ホルダーは、先端側に工具取付部 を有し、基端側に工作機械の回転主軸に連結するシャンク部とマニピュレータ把 持用のフランジ部とが連設されたホルダー本体と、前記工具取付部とフランジ部 との間にベアリングを介して嵌装されて該ホルダー本体を回転自在に支持する環 状の支持部材と、この支持部材の一側方にホルダー本体と平行にかつ該本体基端 側へ突出状に取付けられて一定範囲内で出退移動可能な可動ピンと、この可動ピ ンを突出方向に付勢するスプリングと、該可動ピンに一体的に取付けられて該可 動ピンの出限位置でホルダー本体側に係合する廻り止め部材とを備え、前記回転 主軸への装着時に工作機械の固定部と可動ピンとの係合によって前記支持部材が 非回転状態に保持される工具ホルダーにおいて、前記ホルダー本体のフランジ部 の先端側周縁部を切欠してこれに環状段部が形成され、該環状段部に位置決めリ ングがホルダー本体に対して相対回転位置を調整可能に取付けられ、該位置決め リングに前記廻り止め部材と係合する係合部が形成されていることを特徴とする 。 In order to achieve the above-mentioned object, the tool holder of the present invention has a tool mounting portion on the tip end side, and a shank portion for connecting to a rotary spindle of a machine tool and a flange portion for holding a manipulator on the base end side. A holder body that is continuously provided, an annular support member that is fitted between the tool mounting portion and the flange portion via a bearing to rotatably support the holder body, and one side of this support member. A movable pin parallel to the holder main body and projecting toward the base end side of the main body, capable of moving in and out within a certain range, a spring for urging the movable pin in the protruding direction, and an integral part of the movable pin. And a rotation stop member that engages with the holder main body side at the limit position of the movable pin, the support member being engaged by the fixed portion of the machine tool and the movable pin when the movable pin is mounted on the rotary spindle. Is kept non-rotating In the tool holder to be used, an annular step is formed by cutting out the peripheral edge of the flange part of the holder body, and a positioning ring on the annular step can adjust the relative rotational position with respect to the holder body. And an engaging portion that engages with the anti-rotation member is formed on the positioning ring.
【００１１】 また本考案は、上記位置決めリングと前記フランジ部の両外周面の一方に角度 調整目盛が設けられると共に、他方に該目盛に対する指標が表示されてなる構成 を採用するものである。Further, the present invention adopts a configuration in which an angle adjusting scale is provided on one of both outer peripheral surfaces of the positioning ring and the flange portion, and an index for the scale is displayed on the other side.
【００１２】 更に本考案は、前記可動ピンの先端よりホルダー本体の工具取付部の工具挿入 孔に至る流体通路が形成される一方、支持部材とホルダー本体との間に一対のベ アリングが介在され、両ベアリング間に前記流体通路の一部をなす環状流路が構 成されると共に、該流路と両側のベアリングとの間にそれぞれ可撓性合成樹脂か らなる平坦な環状シール部材が介装されてなる構成を採用するものである。Further, according to the present invention, a fluid passage extending from the tip of the movable pin to the tool insertion hole of the tool mounting portion of the holder body is formed, while a pair of bearings is interposed between the support member and the holder body. An annular flow path forming a part of the fluid passage is formed between both bearings, and a flat annular seal member made of a flexible synthetic resin is interposed between the flow passage and the bearings on both sides. It adopts the structure which is equipped.
【００１３】[0013]
以下、本考案の実施例を図面を参照しつつ説明する。 Embodiments of the present invention will be described below with reference to the drawings.
【００１４】 図１および図２において、１はホルダー本体であって、基端側にシャンク部２ とマニピュレータ把持用の断面Ｖ字形のフランジ部３とが同心状に連設されてお り、先端側には工具取付部材４が同心状に取付けられている。５は前記工具ホル ダー１のフランジ部３と工具取付部材４との間に一対のベアリング６，６を介し て相対回転可能に嵌装された環状の支持部材であって、その一側方には流体継手 兼用の廻り止めブロック７が固着されている。In FIGS. 1 and 2, 1 is a holder main body, and a shank portion 2 and a flange portion 3 having a V-shaped cross section for gripping a manipulator are concentrically connected to a base end side of the holder body, and a tip end thereof is provided. The tool mounting member 4 is concentrically mounted on the side. Reference numeral 5 denotes an annular supporting member which is fitted between the flange portion 3 of the tool holder 1 and the tool mounting member 4 via a pair of bearings 6 and 6 so as to be rotatable relative to each other. The non-rotating block 7, which also serves as a fluid coupling, is fixed.
【００１５】 前記ホルダー本体１のフランジ部３は、マニピュレータ（図外）の爪先が入る 掛合溝３ａとその両側の環状凸部３ｂ，３ｃとから構成され、その周方向複数箇 所には工作機械８の回転主軸８ａ（図１の仮想線）ならびにマガジン（図外）の 姿勢規制用突起を嵌合させる位置決め凹部３０が基端側面より環状凸部３ｂおよ び掛合溝３ａにわたって凹入形成されている。しかして、該フランジ部３の先端 側周縁部には環状段部３１が形成され、この環状段部３１に位置決めリング９が 嵌装されている。The flange portion 3 of the holder body 1 is composed of an engaging groove 3a into which a toe of a manipulator (not shown) is inserted and annular convex portions 3b and 3c on both sides of the engaging groove 3a. 8, a positioning recess 30 for fitting the rotation main shaft 8a (phantom line in FIG. 1) and the attitude regulating projection of the magazine (not shown) is formed from the base side surface over the annular projection 3b and the engaging groove 3a. ing. Then, an annular step portion 31 is formed on the peripheral portion of the flange portion 3 on the front end side, and the positioning ring 9 is fitted to the annular step portion 31.
【００１６】 図３をも参照して、前記位置決めリング９は、環状凸部３ｃ側が該凸部３ｃと 面一な大外径部９ａとなる半径断面Ｌ字形をなし、小外径部９ｂの外周面位置を 外側開口端として内外に透通するねじ孔９ｃが周方向３ケ所に等配形成され、ま た大外径部９ａには１ケ所に小外径部９ｂの外周面位置を底とした切欠部１０が 形成されると共に外周面の一部に角度調整目盛１１ａが刻設されている。一方、 ホルダー本体１側の段部３１にはねじ止め用のＶ字溝３１ａが形成され、位置決 めリング９は各ねじ孔９ｃに螺入した固定ねじ１３をＶ字溝３１ａに圧接するこ とにより、ホルダー本体１に対して任意の相対回転位置で固定できるようになさ れている。しかして、この位置決めリング９の固定位置は、フランジ部３の環状 凸部３ｃに設けた指標１１ｂを角度調整目盛１１ａの所定値に合わせることによ って設定される。Referring also to FIG. 3, the positioning ring 9 has an L-shaped radial cross section having a large outer diameter portion 9a flush with the convex portion 3c on the side of the annular convex portion 3c, and has a small outer diameter portion 9b. Screw holes 9c that penetrate the inside and outside with the outer peripheral surface position as the outer open end are equally formed in three locations in the circumferential direction, and the outer peripheral surface position of the small outer diameter portion 9b is located at one location in the large outer diameter portion 9a. The cutout 10 is formed, and an angle adjusting scale 11a is engraved on a part of the outer peripheral surface. On the other hand, a V-shaped groove 31a for screwing is formed in the step portion 31 on the holder body 1 side, and the positioning ring 9 presses the fixing screw 13 screwed into each screw hole 9c into the V-shaped groove 31a. With this, the holder body 1 can be fixed at an arbitrary relative rotational position. Therefore, the fixed position of the positioning ring 9 is set by adjusting the index 11b provided on the annular convex portion 3c of the flange portion 3 to the predetermined value of the angle adjustment scale 11a.
【００１７】 前記廻り止めブロック７はホルダー本体１の軸線と平行な軸線上に位置して該 本体１の基端側に開放した有底筒部７ａを有しており、該有底筒部７ａに可動ピ ン１３が軸方向摺動自在に嵌装されている。この可動ピン１３は、有底筒部７ａ 内面に摺接する摺動筒部１３ａと、その外端側に螺挿されてホルダー本体１の基 端側へ突出する係合筒部１３ｂとから構成されており、摺動筒部１３ａの内面に 嵌装したばね止めリング１４ａと有底筒部７ａの内底との間に装填されているコ イルスプリング１４により、常時突出方向に弾圧付勢されている。また、この可 動ピン１３には、ホルダー本体１の中心へ向いて突片状に突出する廻り止め部材 １５が、摺動筒部１３ａの外端面と係合筒部１３ｂに螺合した抜け止めナット１ ５ａとの間で挟着された形で固定ねじ１５ｂを介して固定されている。しかして 、廻り止め部材１５は先端部が位置決めリング９の切欠部１０に係合し得る突出 高さおよび先端部幅に設定されており、この係合位置が可動ピン１３の出限位置 となる。The whirl-stop block 7 has a bottomed cylindrical portion 7a which is located on an axis parallel to the axis of the holder body 1 and which is open to the base end side of the main body 1, and the bottomed cylindrical portion 7a. A movable pin 13 is fitted on the shaft so as to be slidable in the axial direction. The movable pin 13 is composed of a sliding cylinder portion 13a that slidably contacts the inner surface of the bottomed cylinder portion 7a, and an engagement cylinder portion 13b that is screwed into the outer end side thereof and projects toward the base end side of the holder body 1. The coil spring 14 mounted between the spring stopper ring 14a fitted on the inner surface of the sliding cylinder portion 13a and the inner bottom of the bottomed cylinder portion 7a is constantly elastically biased in the protruding direction. There is. In addition, the movable pin 13 has a retaining member 15 protruding toward the center of the holder body 1 in the form of a projecting member, which is screwed to the outer end surface of the sliding cylindrical portion 13a and the engaging cylindrical portion 13b. The nut 15a is fixed to the nut 15a via a fixing screw 15b. Therefore, the anti-rotation member 15 has a protrusion height and a tip width that allow the tip portion to engage with the notch portion 10 of the positioning ring 9, and this engagement position is the limit position of the movable pin 13. ..
【００１８】 前記可動ピン３の内部は逆止弁１６を内装した係合筒部３ｂの先端を導入口１ ７ａとする流路１７を構成しており、この流路１７は摺動筒部３ａに設けた透孔 １７ｂを介して有底筒部７ａの内周面に幅方向適当長さにわたって形成された環 状凹部１８に連通している。一方、ホルダー本体１と支持部材５との間には、一 対のベアリング６，６の各内端面に対してテフロンの如きフッ素系樹脂からなる 可撓性の平坦な環状シール部材１９にて隔てられた環状流路２０が形成されてお り、この環状流路２０は、支持部材５に穿設された半径方向流路２１を介して前 記の環状凹部１８に連通すると共に、ホルダー本体１の工具挿入孔２２ａに連続 する中心孔２２ｂに対して半径方向流路２３を介して連通している。The inside of the movable pin 3 constitutes a flow passage 17 in which the tip of the engagement cylinder portion 3b in which the check valve 16 is installed serves as the inlet port 17a, and the flow passage 17 is the slide cylinder portion 3a. It is communicated with an annular recess 18 formed in the inner peripheral surface of the bottomed tubular portion 7a over a proper length in the width direction through a through hole 17b provided in the. On the other hand, the holder body 1 and the support member 5 are separated by a flexible flat annular seal member 19 made of a fluororesin such as Teflon on each inner end surface of the pair of bearings 6 and 6. The annular flow path 20 is formed, and the annular flow path 20 communicates with the above-mentioned annular recess 18 through the radial flow path 21 formed in the support member 5, and also the holder body 1 A central hole 22b that is continuous with the tool insertion hole 22a is communicated via a radial passage 23.
【００１９】 上記構成の工具ホルダーは、工作機械への非装着時には、図２の仮想線で示す 如く廻り止め部材１５と位置決めリング９の切欠部１０とを係合させることによ り、ホルダー本体１と支持部材５とが相対回転不能状態に保持され、この状態で マガジンに収納される。ここで該本体１と支持部材５との相対回転位置は、工作 機械８の流体供給口兼用の係止ブロック８ａ（図１の仮想線で示す）の位置と可 動ピン１３の位置とが対応するように、ホルダー本体１に対する位置決めリング ９の周方向固定位置を調整することによって予め設定されている。尚、上記の相 対回転位置は工作機械の機種ごとに定まるから、この位置における角度調整目盛 １１ａ上の指標１１ｂが示す数値を予め知っておくことにより、上記調整操作は 該目盛り１１ａと指標１１ｂとを合わせるだけで容易かつ精密に行える。When the tool holder having the above-mentioned configuration is not mounted on the machine tool, by engaging the anti-rotation member 15 and the notch 10 of the positioning ring 9 as shown by the phantom line in FIG. 1 and the supporting member 5 are held in a state where they cannot rotate relative to each other, and in this state they are stored in the magazine. Here, the relative rotational position between the main body 1 and the support member 5 corresponds to the position of the locking block 8a (shown by the phantom line in FIG. 1) also serving as the fluid supply port of the machine tool 8 and the position of the movable pin 13. Thus, it is preset by adjusting the circumferential fixing position of the positioning ring 9 with respect to the holder body 1. Since the relative rotational position is determined for each machine tool model, it is necessary to know the numerical value indicated by the index 11b on the angle adjustment scale 11a at this position in advance so that the adjustment operation can be performed on the scale 11a and the index 11b. It can be done easily and precisely just by matching and.
【００２０】 切削加工を行う際には、従来と同様に、ホルダー本体１のフランジ部３を所定 のマニピュレータによって把持させ、図１の仮想線で示す工作機械８の回転主軸 ８ａにシャンク部２を介してセットする。このとき、工作機械８側の係止ブロッ ク８ｂに可動ピン１３の先端が係合すると共に、該係止ブロック８ｂによる押圧 によって可動ピン１３がコイルスプリング１４の付勢に抗して退入移動する。そ の結果、廻り止め部材１５も可動ピン１３と一体に移動して切欠部１０から離脱 するため、ホルダー本体１は支持部材５に対する廻り止めが解除されて回転主軸 ８ａの駆動によって回転する。When performing the cutting process, the flange portion 3 of the holder body 1 is gripped by a predetermined manipulator, and the shank portion 2 is attached to the rotary spindle 8a of the machine tool 8 shown by the phantom line in FIG. Set through. At this time, the tip of the movable pin 13 engages with the locking block 8b on the machine tool 8 side, and the movable pin 13 moves back and forth against the bias of the coil spring 14 by the pressing by the locking block 8b. To do. As a result, the detent member 15 also moves integrally with the movable pin 13 and is disengaged from the notch 10, so that the holder body 1 is released from the detent against the support member 5 and is rotated by the drive of the rotation main shaft 8a.
【００２１】 一方、上記セットにより、係止ブロック８ｂの流体供給口（図略）と可動ピン １３の導入口１７ａとが接続され、該供給口より導入される圧縮空気や切削油等 の圧流体は流路１７→透孔１７ｂ→環状凹部１８→流路２１→環状流路２０→流 路２３→中心孔２２ｂの経路を経て孔付き切削工具（図外）の放出孔より放出さ れる。しかして、環状流路２０においては導入された流体の圧力によって各環状 シール部材１９がベアリング６の内外リング６ａ，６ｂの内端面に押し付けられ て密着するから、ホルダー本体１と支持部材５との摺接界面での封止が完全にな される。On the other hand, by the above set, the fluid supply port (not shown) of the locking block 8b and the introduction port 17a of the movable pin 13 are connected, and the compressed fluid such as compressed air or cutting oil introduced from the supply port is connected. Is discharged from the discharge hole of the cutting tool with a hole (not shown) through the path of the flow path 17 → the through hole 17b → the annular recess 18 → the flow path 21 → the annular flow path 20 → the flow path 23 → the central hole 22b. Then, in the annular flow path 20, the respective annular seal members 19 are pressed against the inner end surfaces of the inner and outer rings 6a and 6b of the bearing 6 by the pressure of the introduced fluid and are brought into close contact with each other. Complete sealing at the sliding interface.
【００２２】 なお、上記実施例の構成では、位置決めリング９の切欠部１０が両端面に開口 し、これに係合した廻り止め部材１５のストッパー面が環状凸部３ｃの端面とな ることから、該リング９の厚みを薄く設定でき、これによって工具ホルダーの長 さ増大が避けられ重切削に好都合である。また実施例構成では、可動ピン１３の 突出量が摺動筒部１３ａと係合筒部１３ｂとの螺合度合を変えることによって調 整できるから、工作機械８の機種による係止ブロック８ｂの突出位置の違いにも 対応できるという利点がある。In the structure of the above-described embodiment, the notch 10 of the positioning ring 9 is open at both end faces, and the stopper surface of the detent member 15 engaged with this is the end face of the annular convex portion 3c. The thickness of the ring 9 can be set thin, which prevents the length of the tool holder from increasing, which is convenient for heavy cutting. Further, in the configuration of the embodiment, since the protrusion amount of the movable pin 13 can be adjusted by changing the screwing degree of the sliding cylinder portion 13a and the engagement cylinder portion 13b, the protrusion of the locking block 8b depending on the machine tool 8 model. It has the advantage of being able to handle differences in position.
【００２３】 一方、本考案においては、角度調整目盛１１ａを実施例とは逆にフランジ部３ 側に設け、前記リング９に指標１１ｂを設けるようにしてもよい。更に本考案の 工具ホルダーの細部構成は例示以外に種々設計変更可能であり、また工具取付部 ４としても多種多様な構造、外形のものを採用できる。On the other hand, in the present invention, the angle adjusting scale 11a may be provided on the flange portion 3 side, contrary to the embodiment, and the ring 9 may be provided with the index 11b. Further, the detailed structure of the tool holder of the present invention can be modified in various ways other than the example, and the tool mounting portion 4 can have various structures and outer shapes.
【００２４】[0024]
本考案によれば、前記位置決めリングがホルダー本体のフランジ部に切欠 形成した段部に嵌装される構造であるため、該リング自体をフランジ部の一 部として規定のフランジ幅を確保できると共に、該リングによる工具ホルダ ーの長さ増大が避けられ、ホルダー本体のコンパクト化に貢献することがで きる。 According to the present invention, since the positioning ring is fitted to the stepped portion formed in the flange portion of the holder body, the ring itself can be used as a part of the flange portion to secure a prescribed flange width. It is possible to avoid increasing the length of the tool holder due to the ring, which can contribute to downsizing of the holder body.
【００２５】 また、本考案においては、流体通路を有する上記の工具ホルダーとして、 ホルダー本体と支持部材との間に設ける環状流路を両者間に介在する一対の ベアリング間に構成すると共に、該流路と両側のベアリングとの間にそれぞ れ可撓性合成樹脂からなる平坦な環状シール部材を介装した構造とすれば、 該流路内の流体圧力による環状シール部材の押圧によって前記本体と支持部 材との摺接界面の封止が完全になされ、しかも支持部材の嵌装部分の幅がＯ リングを使用した従来のものに比較して格段に狭く設定でき、この面からも 工具ホルダーの軸方向長さを短くし、一層コンパクト化に貢献することがで きる。Further, in the present invention, as the above-mentioned tool holder having a fluid passage, an annular flow path provided between a holder body and a support member is formed between a pair of bearings interposed therebetween, and If a flat annular sealing member made of a flexible synthetic resin is interposed between the passage and the bearings on both sides, the annular sealing member is pressed by the fluid pressure in the flow passage to form the main body with the main body. The sliding interface with the support member is completely sealed, and the width of the fitting part of the support member can be set to be much narrower than that of the conventional product that uses an O-ring. The axial length of the can be shortened, which contributes to further compactness.
【００２６】 更に、本考案に係る工具ホルダーは、ホルダー本体と支持部材との相対回 転不能状態における可動ピンの該本体に対する配置角度が、該本体に固定す る位置決めリングの周方向回転位置変化によって任意に調整できるから、前 記可動ピンに係合させる固定部の位置が種々異なる工作機械に共用可能であ って汎用性に優れ、しかも前記調整が角度調整目盛の所定数値に指標を合わ せるだけの極めて簡単な操作で精密に行えるという利点がある。Further, in the tool holder according to the present invention, the arrangement angle of the movable pin with respect to the main body when the holder main body and the supporting member are in the non-rotatable state is changed in the circumferential rotational position of the positioning ring fixed to the main body. Since it can be adjusted freely by using the machine, the position of the fixed part that engages with the movable pin can be shared by various machine tools and is highly versatile. There is an advantage that it can be performed precisely by an extremely simple operation of just performing.
【図１】本考案の一実施例に係る工具ホルダーの側面図
である。FIG. 1 is a side view of a tool holder according to an embodiment of the present invention.
【図２】同上の要部縦断拡大側面図である。FIG. 2 is an enlarged side view of a vertical section of the main part of the same.
【図３】位置決めリングの斜視図である。FIG. 3 is a perspective view of a positioning ring.
１ ホルダー本体 ２ シャンク部 ３ フランジ部 ４ 工具取付部 ５ 支持部材 ６ ベアリング ８ 工作機械 ８ａ 回転主軸 ８ｂ 流体供給口兼用の係止ブロック（固定部） ９ 位置決めリング １０ 切欠部 １１ａ 角度調整目盛 １１ｂ 指標 １３ 可動ピン １４ コイルスプリング １５ 廻り止め部材 １９ 環状シール部材 ２０ 環状流路 ２２ａ 工具挿入孔 ３１ 段部 1 Holder Main Body 2 Shank Part 3 Flange Part 4 Tool Mounting Part 5 Supporting Member 6 Bearing 8 Machine Tool 8a Rotating Spindle 8b Locking Block (Fixing Part) that also serves as Fluid Supply Port 9 Positioning Ring 10 Notch 11a Angle Adjustment Scale 11b Index 13 Movable pin 14 Coil spring 15 Detent member 19 Annular seal member 20 Annular flow path 22a Tool insertion hole 31 Step
Claims (3)
作機械の回転主軸に連結するシャンク部とマニピュレー
タ把持用のフランジ部とが連設されたホルダー本体と、
前記工具取付部とフランジ部との間にベアリングを介し
て嵌装されて該ホルダー本体を回転自在に支持する環状
の支持部材と、この支持部材の一側方にホルダー本体と
平行にかつ該本体基端側へ突出状に取付けられて一定範
囲内で出退移動可能な可動ピンと、この可動ピンを突出
方向に付勢するスプリングと、該可動ピンに一体的に取
付けられて該可動ピンの出限位置でホルダー本体側に係
合する廻り止め部材とを備え、前記回転主軸への装着時
に工作機械の固定部と可動ピンとの係合によって前記支
持部材が非回転状態に保持される工具ホルダーにおい
て、前記ホルダー本体のフランジ部の先端側周縁部を切
欠してこれに環状段部が形成され、該環状段部に位置決
めリングがホルダー本体に対して相対回転位置を調整可
能に取付けられ、該位置決めリングに前記廻り止め部材
と係合する係合部が形成されていることを特徴とする工
具ホルダー。1. A holder main body having a tool mounting portion on the tip end side, and a shank portion connecting to a rotary spindle of a machine tool and a flange portion for gripping a manipulator, which are connected to each other on the base end side.
An annular support member that is fitted between the tool mounting portion and the flange portion via a bearing to rotatably support the holder main body, and one side of the support member parallel to the holder main body and the main body. A movable pin that is attached to the base end side in a protruding shape and can move in and out within a certain range, a spring that urges the movable pin in the protruding direction, and an extension of the movable pin that is integrally attached to the movable pin. A tool holder comprising: a rotation stopping member that engages with a holder main body side at a limited position, wherein the support member is held in a non-rotating state by engagement between a fixed portion of a machine tool and a movable pin when the support member is mounted on the rotating spindle. An annular step portion is formed by cutting out a peripheral edge portion of the flange portion of the holder body on the front end side, and a positioning ring is attached to the annular step portion so as to adjust a relative rotational position with respect to the holder body. Tool holder, wherein the engaging portion to be engaged with the rotation stopper member-decided Me ring is formed.
両外周面の一方に角度調整目盛が設けられると共に、他
方に該目盛に対する指標が表示されてなる請求項１記載
の工具ホルダー。2. The tool holder according to claim 1, wherein an angle adjusting scale is provided on one of both outer peripheral surfaces of the positioning ring and the flange portion, and an index for the scale is displayed on the other side.
工具取付部の工具挿入孔に至る流体通路が形成される一
方、支持部材とホルダー本体との間に一対のベアリング
が介在され、両ベアリング間に前記流体通路の一部をな
す環状流路が構成されると共に、該流路と両側のベアリ
ングとの間にそれぞれ可撓性合成樹脂からなる平坦な環
状シール部材が介装されてなる請求項１記載の工具ホル
ダー。3. A fluid passage extending from the tip of the movable pin to the tool insertion hole of the tool mounting portion of the holder main body is formed, and a pair of bearings are interposed between the support member and the holder main body. 7. An annular flow path forming a part of the fluid passage is formed in, and a flat annular seal member made of a flexible synthetic resin is interposed between the flow path and the bearings on both sides. Tool holder described in 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1252192U JPH0563740U (en) | 1992-02-04 | 1992-02-04 | Tool holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1252192U JPH0563740U (en) | 1992-02-04 | 1992-02-04 | Tool holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0563740U true JPH0563740U (en) | 1993-08-24 |
Family
ID=11807649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1252192U Pending JPH0563740U (en) | 1992-02-04 | 1992-02-04 | Tool holder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0563740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3868474B1 (en) * | 2006-05-08 | 2007-01-17 | 司工機株式会社 | Machining tools |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0123338B2 (en) * | 1981-01-27 | 1989-05-02 | Mazda Motor | |
| JPH0222193U (en) * | 1988-07-27 | 1990-02-14 |
-
1992
- 1992-02-04 JP JP1252192U patent/JPH0563740U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0123338B2 (en) * | 1981-01-27 | 1989-05-02 | Mazda Motor | |
| JPH0222193U (en) * | 1988-07-27 | 1990-02-14 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3868474B1 (en) * | 2006-05-08 | 2007-01-17 | 司工機株式会社 | Machining tools |
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