JPH0137850Y2 - - Google Patents

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Publication number
JPH0137850Y2
JPH0137850Y2 JP1985047432U JP4743285U JPH0137850Y2 JP H0137850 Y2 JPH0137850 Y2 JP H0137850Y2 JP 1985047432 U JP1985047432 U JP 1985047432U JP 4743285 U JP4743285 U JP 4743285U JP H0137850 Y2 JPH0137850 Y2 JP H0137850Y2
Authority
JP
Japan
Prior art keywords
workpiece
shaft
chuck body
chuck
mounting 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.)
Expired
Application number
JP1985047432U
Other languages
Japanese (ja)
Other versions
JPS61166707U (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 JP1985047432U priority Critical patent/JPH0137850Y2/ja
Publication of JPS61166707U publication Critical patent/JPS61166707U/ja
Application granted granted Critical
Publication of JPH0137850Y2 publication Critical patent/JPH0137850Y2/ja
Expired legal-status Critical Current

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  • Jigs For Machine Tools (AREA)
  • Gripping On Spindles (AREA)

Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は、工作機械のスピンドル端にチヤツク
ボデイーが取付けられ、該チヤツクボデイーに複
数の爪保持軸が摺動可能に支持され、該爪保持軸
の端部に装着された複数の把持爪をワークの端面
に当接させてワークを把持するフエースクランプ
チヤツクに関する。
[Detailed Description of the Invention] (Industrial Application Field) In the present invention, a chuck body is attached to the spindle end of a machine tool, a plurality of jaw holding shafts are slidably supported on the chuck body, and the chuck body is slidably supported on the chuck body. This invention relates to a face clamp chuck that grips a workpiece by bringing a plurality of gripping claws attached to the end into contact with the end surface of the workpiece.

(従来の技術) 従来、旋盤等の工作機械においては、通常のチ
ヤツクでは把持できない異形ワークあるいは変形
しやすい材質、例えばアルミ製のワークを把持す
る際には、例えば3つの把持爪をチヤツクボデイ
ーのワーク取付部に取付けられたワークの端面に
当接させることによつてワークを把持するフエー
スクランプチヤツクが一般的に使用されている。
(Prior art) Conventionally, in machine tools such as lathes, when gripping irregularly shaped workpieces that cannot be gripped with a normal chuck or workpieces made of easily deformable materials such as aluminum, for example, three gripping claws are used to hold the workpiece of the chuck body. A face clamp chuck is generally used that grips a workpiece by coming into contact with the end face of the workpiece attached to a mounting portion.

しかしながら、このような従来のフエースクラ
ンプチヤツクでは、ワークをロボツト等によつて
前記ワーク取付部に自動で取付ける場合に、ワー
クの芯出しをロボツト等で精度良く行なうことは
困難であり、特に2次加工の際にワークの芯がズ
レてしまつた場合には不良ワークが発生してしま
うという問題点があつた。また従来は芯出し部を
含め固定的な構造であるため、取付けるワークの
種類も限定され融通性に富んだものとはいえなか
つた。
However, with such a conventional face clamp chuck, when a workpiece is automatically mounted on the workpiece mounting portion by a robot or the like, it is difficult to center the workpiece with high accuracy, especially in the case of two There was a problem in that if the center of the workpiece was misaligned during the next processing, a defective workpiece would be produced. Furthermore, since the conventional structure including the centering part is fixed, the types of workpieces to which it can be attached are limited, and it cannot be said to be highly flexible.

(考案が解決しようとする問題点) 本考案は、このような従来の問題点に着目して
成されたもので、ワークをロボツト等でワーク取
付部に自動で取付ける場合でも、ワークの芯出し
を精度良く行なうことができ、また多種類のワー
クにも対応できるフエースクランプチヤツクを提
供することを目的としている。
(Problems to be solved by the invention) The present invention was made by focusing on the problems of the conventional methods. The purpose of the present invention is to provide a face clamp chuck that can perform this work with high precision and can also handle a wide variety of workpieces.

(問題点を解決するための手段) かかる目的を達成するための本考案の要旨は、
工作機械の主軸端に固定されるチヤツク本体と、 該主軸の貫通穴に挿通され主軸軸線方向に移動
自在な駆動部材と、 前記チヤツク本体に中心軸より等角度間隔にか
つこの中心軸に対して平行な位置に支持されると
ともに外周部に形成したカム溝により主軸軸線方
向およびこの軸線のまわりに摺動自在な複数の爪
保持軸と、 該爪保持軸の端部に装着され、ワークに端面部
に当接させて前記チヤツク本体との間にワークを
挟持する保持爪と、 前記駆動部材の移動を前記爪保持軸に伝達する
伝達部材と、 前記チヤツクボデイ前端部に取付けられワーク
の一端を当接する取付け部材と、 該取付け部材中心に主軸軸線方向摺動自在に支
持されるとともに前記伝達部材と所定の間隔をも
つて離脱可能に構成され、前記伝達部材の移動に
伴い該伝達部材が当接した場合のみ移動し、か
つ、前部に傾斜案内部を形成した軸体と、 前記取付け部材に設けられこの取付け部材に対
して該軸体を主軸軸線方向に付勢している付勢手
段と、 前記取付け部材に半径方向摺動自在に設けられ
一端が前記軸体の傾斜案内部と係合し、他端が前
記付勢手段の付勢力でワークを押圧しワークの径
方向の芯出しを行う複数の押圧部材とからなるフ
エースクランプチヤツクに存する。
(Means for solving the problem) The gist of the present invention to achieve this purpose is as follows:
a chuck body fixed to the end of the spindle of a machine tool; a drive member inserted into a through hole of the spindle and movable in the axis direction of the spindle; A plurality of pawl holding shafts are supported in parallel positions and are slidable in the direction of the spindle axis and around this axis through cam grooves formed on the outer periphery. a holding pawl that clamps the workpiece between the chuck body and the chuck body; a transmission member that transmits movement of the drive member to the pawl holding shaft; a mounting member in contact with the mounting member; the mounting member is supported slidably in the axial direction of the main shaft at the center of the mounting member and is configured to be detachable from the transmission member at a predetermined distance; a shaft body that moves only when the shaft is moved and has an inclined guide portion formed in the front part; and a biasing means provided on the mounting member that biases the shaft body in the direction of the spindle axis relative to the mounting member. , one end of the mounting member is slidably provided in the radial direction, one end engages with the inclined guide portion of the shaft body, and the other end presses the workpiece with the biasing force of the biasing means to center the workpiece in the radial direction. The present invention consists in a face clamp chuck consisting of a plurality of pressing members.

(作用) そして、上記フエースクランプチヤツクでは、
チヤツクボデイーに着脱自在な取付け部材上の前
記芯出し軸が前記突出位置から芯出し位置に変位
する際に、前記複数の押圧子が前記芯出し軸の傾
斜案内部に追従して径方向に変位し、ワークの基
準穴もしくは基準外径に押接することによつてワ
ークの芯出しを行なうようになつている。
(Function) And, in the above face clamp chuck,
When the centering shaft on the mounting member that is detachably attached to the chuck body is displaced from the protruding position to the centering position, the plurality of pressers follow the inclined guide portion of the centering shaft and are displaced in the radial direction. The workpiece is centered by pressing against the reference hole or reference outer diameter of the workpiece.

(実施例) 以下、図面に基づいて本考案の各実施例を説明
する。なお、各実施例において同様の部位には同
一符号を付する。
(Example) Hereinafter, each example of the present invention will be described based on the drawings. Note that similar parts in each embodiment are given the same reference numerals.

第1図は本考案の第1実施例を示している。こ
の第1実施例は、取付け部材に設けられた複数の
押圧子がワークの基準穴に押接することによつて
ワークの芯出しを行なうように構成されたもので
ある。
FIG. 1 shows a first embodiment of the invention. The first embodiment is configured to center the workpiece by pressing a plurality of pressers provided on the mounting member into reference holes of the workpiece.

第1図に示すように、旋盤のスピンドル1の端
部にはアダプタ10を介してチヤツクボデイー2
が連結されている。
As shown in FIG. 1, a chuck body 2 is connected to the end of the spindle 1 of the lathe via an adapter 10.
are connected.

チヤツクボデイー2には、回転中心に関して対
称な3ケ所または適宜な3ケ所に3つの爪保持軸
3が摺動可能に支持されている。各爪保持軸3は
チヤツクボデイー2の前端面から突出しており、
各爪保持軸3の先端には把持爪30がボルトによ
つて締結されている。
Three claw holding shafts 3 are slidably supported on the chuck body 2 at three locations symmetrical about the center of rotation or at three appropriate locations. Each claw holding shaft 3 protrudes from the front end surface of the chuck body 2.
A gripping claw 30 is fastened to the tip of each claw holding shaft 3 with a bolt.

各爪保持軸3は、鎖線で示す解除位置と実線で
示す把持位置との間でストロークS1だけ摺動可
能である。各爪保持軸3の側部にはチヤツクボデ
イー2側に設けられた係合ピン2aに係合する螺
旋溝3aが形成されており、爪保持軸3が解除位
置から把持位置に変位する際に、把持爪30の先
端部30aがワークWの端面W1から逃げた退避
位置から実線で示す係合位置まで各把持爪30が
旋回するようになつている。各爪保持軸3の後端
には一部螺旋の案内溝3bが形成されている。
Each claw holding shaft 3 is slidable by a stroke S1 between a release position shown by a chain line and a gripping position shown by a solid line. A spiral groove 3a is formed on the side of each claw holding shaft 3 to engage with an engaging pin 2a provided on the chuck body 2 side, and when the claw holding shaft 3 is displaced from the release position to the gripping position, Each gripping claw 30 is configured to pivot from a retracted position where the tip end 30a of the gripping claw 30 escapes from the end surface W1 of the workpiece W to an engagement position shown by a solid line. A partially spiral guide groove 3b is formed at the rear end of each claw holding shaft 3.

スピンドル1内の軸方向に延びた貫通孔1aに
は、不図示のシリンダに連結され、該シリンダに
連動して繰出し位置と第1図に示す繰込み位置と
の間で摺動可能な駆動軸4が挿通している。
A drive shaft is connected to a cylinder (not shown) in a through hole 1a extending in the axial direction in the spindle 1, and is slidable in conjunction with the cylinder between a feeding position and a feeding position shown in FIG. 4 is inserted.

駆動軸4の動きを各爪保持軸3に伝達する伝達
部材5は、駆動軸4の外周に螺着され、貫通孔1
aに摺動可能に嵌合した第1連結筒体51と、第
1連結筒体51にボルトによつて連結され、貫通
孔52aおよび保持部52bが形成された第2連
結筒体52と、各爪保持軸3の案内溝3bに係合
する半円形状の係合溝53aが3ケ所に形成され
た係合体53とから構成されている。
A transmission member 5 that transmits the movement of the drive shaft 4 to each claw holding shaft 3 is screwed onto the outer periphery of the drive shaft 4 and is attached to the through hole 1.
a first connecting cylinder 51 that is slidably fitted to the first connecting cylinder 51; a second connecting cylinder 52 that is connected to the first connecting cylinder 51 with a bolt and has a through hole 52a and a holding part 52b; The engagement body 53 has semicircular engagement grooves 53a formed at three locations to engage with the guide grooves 3b of each claw holding shaft 3.

第1連結筒体51の前端部には、ばね51aに
よつて突出方向に付勢され、係合体53の後端面
に形成された係止溝53bに嵌入した鋼球51b
が数ケ所に設けられている。該係合体53は、鋼
球51bと第2連結筒体52の保持部52bとに
よつて挟持されており、駆動軸4の動きが、第1
連結筒体51、第2連結筒体52および係合体5
3を介して各爪保持軸3に伝達されるようになつ
ている。
At the front end of the first connecting cylinder 51, a steel ball 51b is provided which is biased in the protruding direction by a spring 51a and fitted into a locking groove 53b formed on the rear end surface of the engaging body 53.
are set up in several places. The engaging body 53 is held between the steel ball 51b and the holding part 52b of the second connecting cylinder 52, and the movement of the drive shaft 4 is controlled by the first
Connecting cylinder 51, second connecting cylinder 52, and engaging body 5
3 to each claw holding shaft 3.

先端部に傾斜案内部6aが形成された芯出し軸
6が、チヤツクボデイー2の前端面中央に締結さ
れたワーク取付部材7の内周面および第2連結筒
体52の貫通孔52aに摺動可能に支持されてい
る。芯出し軸6の外周に螺着された円盤60とワ
ーク取付部材7との間には、芯出し軸6を第1図
に示す芯出し位置に付勢するばね部材61が介装
されている。
A centering shaft 6 having an inclined guide portion 6a formed at its tip can slide into the inner peripheral surface of a workpiece mounting member 7 fastened to the center of the front end surface of the chuck body 2 and through the through hole 52a of the second connecting cylinder 52. is supported by A spring member 61 is interposed between the disk 60 screwed onto the outer periphery of the centering shaft 6 and the workpiece mounting member 7 to bias the centering shaft 6 to the centering position shown in FIG. .

前記第2連結筒体52の当接面52cは、駆動
軸4が第1図に示す繰込み位置にある時には円盤
60の端面60aからストロークS2(S1>S
2)だけ離間している。
The contact surface 52c of the second connecting cylinder 52 has a stroke S2 (S1>S
2).

ワーク取付部材7のワーク取付部70には、芯
出し軸6が第1図に示す芯出し位置とこの芯出し
位置から右方向に変位した突出位置との間で摺動
する際に、傾斜案内部6aに追従して径方向に変
位する押圧子8がチヤツクボデイー2の回転中心
に関して対称な3ケ所に配設されている。このワ
ーク取付け部材7は前記芯出し軸6、ばね部材6
1、および押圧子8とともにチヤツクボデイ2よ
り取外すことが可能な構成になつている。
The workpiece mounting portion 70 of the workpiece mounting member 7 is provided with an inclined guide when the centering shaft 6 slides between the centering position shown in FIG. 1 and a protruding position displaced to the right from this centering position. Pressure elements 8 which follow the portion 6a and are displaced in the radial direction are arranged at three symmetrical locations with respect to the rotation center of the chuck body 2. This workpiece mounting member 7 includes the centering shaft 6 and the spring member 6.
1 and the pusher 8 can be removed from the chuck body 2.

上記構成を有するフエースクランプチヤツクで
は、ワークWがワーク取付部70に取り付けられ
てない状態においては、駆動軸4は第1図に示す
繰込み位置から右方向に変位した繰出し位置にあ
る。この時、各爪保持軸3および各把持爪30は
鎖線で示す解除位置および退避位置にあり、かつ
芯出し軸6は、円盤60が第2連結筒体52に押
されて、第1図に示す芯出し位置より右方向に変
位した突出位置にある。したがつて、芯出し軸6
の傾斜案内部6aに追従する各押圧子8は径方向
内側に引つ込んでいる。
In the face clamp chuck having the above configuration, when the workpiece W is not attached to the workpiece mounting portion 70, the drive shaft 4 is at the feeding position displaced rightward from the feeding position shown in FIG. At this time, each claw holding shaft 3 and each gripping claw 30 are in the release position and the retracted position shown by chain lines, and the centering shaft 6 is in the position shown in FIG. It is located at a protruding position displaced to the right from the centering position shown. Therefore, the centering shaft 6
Each pusher 8 that follows the inclined guide portion 6a is retracted inward in the radial direction.

そして、ワークWをロボツト等によつてワーク
取付部70に自動で取り付け、駆動軸4を繰出し
位置から繰込み位置に変位させると、第2連結筒
体52が駆動軸4と共に左方向に変位するので、
芯出し軸6および円盤60がばね部材61の付勢
力によつて前記突出位置から左方向に変位し、か
つ各爪保持軸3には駆動軸4の動きが伝達部材5
を介して伝達されるので、各爪保持軸3も前記解
除位置から左方向に変位する。
Then, when the workpiece W is automatically attached to the workpiece mounting part 70 by a robot or the like and the drive shaft 4 is displaced from the feeding position to the feeding position, the second connecting cylinder 52 is displaced to the left together with the drive shaft 4. So,
The centering shaft 6 and the disk 60 are displaced leftward from the protruding position by the biasing force of the spring member 61, and the movement of the drive shaft 4 is transferred to each claw holding shaft 3 by the transmission member 5.
, each claw holding shaft 3 is also displaced leftward from the release position.

駆動軸4が繰出し位置から(S1−S2)のス
トロークだけ左方向に変位する前に、芯出し軸6
がばね部材61の付勢力によつて突出位置から第
1図に示す芯出し位置まで変位し、この変位によ
つて各押圧子8は傾斜案内部6aに押されて径方
向外側に押し出され、各押圧子8の先端部がワー
クWの基準穴W2に押接する。これによつてワー
クWの芯出しが成される。
Before the drive shaft 4 is displaced leftward by a stroke of (S1-S2) from the feeding position, the centering shaft 6
are displaced from the protruding position to the centering position shown in FIG. 1 by the biasing force of the spring member 61, and due to this displacement, each presser 8 is pushed by the inclined guide portion 6a and pushed outward in the radial direction, The tip of each presser 8 presses against the reference hole W2 of the workpiece W. As a result, the workpiece W is centered.

駆動軸4が残りのストロークS2だけさらに左
方向に変位する間に、各爪保持軸3が第1図に示
す把持位置まで伝達部材5によつて変位させられ
る。この時、各爪保持軸3が把持位置に変位する
までに、各把持爪30は係合ピン2aと螺旋溝3
aとの係合によつて前記退避位置から旋回して第
1図の実線で示す係合位置に変位している。これ
によつて各把持爪30の先端部30aがワークW
の端面W1に当接し、ワークWを把持している。
While the drive shaft 4 is further displaced to the left by the remaining stroke S2, each pawl holding shaft 3 is displaced by the transmission member 5 to the gripping position shown in FIG. At this time, by the time each claw holding shaft 3 is displaced to the gripping position, each gripping claw 30 is connected to the engagement pin 2a and the spiral groove 3.
By engagement with a, it pivots from the retracted position and is displaced to the engagement position shown by the solid line in FIG. As a result, the tip portion 30a of each gripping claw 30 is attached to the workpiece W.
The workpiece W is gripped by contacting the end surface W1 of the workpiece W1.

次に、ワークWを取り外すために駆動軸4を第
1図に示す繰込み位置から繰出し位置までストロ
ークS1だけ変位させる間に、各爪保持軸3は把
持位置から解除位置まで右方向に変位するととも
に、各把持爪30は係合位置から退避位置に旋回
して変位する。
Next, while displacing the drive shaft 4 by a stroke S1 from the retracting position to the unfeeding position shown in FIG. 1 in order to remove the workpiece W, each claw holding shaft 3 is displaced rightward from the gripping position to the release position. At the same time, each gripping claw 30 is pivoted and displaced from the engagement position to the retracted position.

駆動軸4が繰込み位置からストロークS2だけ
右方向に変位した際に、第2連結筒体52の当接
面52cが円盤60の端面60aに当接する。こ
の位置から駆動軸4が残りのストローク(S1−
S2)だけ右方向に変位すると、第2連結筒体5
2が円盤60をばね部材61の付勢力に抗して右
方向に押し、これによつて芯出し軸6が第1図に
示す芯出し位置から突出位置に右方向に変位し、
この変位によつて各押圧子8が径方向内側に引つ
込み可能になり、ワークWをワーク取付部70か
ら取外すことができる。
When the drive shaft 4 is displaced rightward by the stroke S2 from the retracted position, the contact surface 52c of the second connecting cylinder 52 contacts the end surface 60a of the disc 60. From this position, the drive shaft 4 continues its remaining stroke (S1-
S2), the second connecting cylinder 5
2 pushes the disk 60 to the right against the biasing force of the spring member 61, whereby the centering shaft 6 is displaced rightward from the centering position shown in FIG. 1 to the protruding position,
This displacement allows each presser 8 to be retracted radially inward, and the workpiece W can be removed from the workpiece mounting portion 70.

なお、前記押圧子8の数は3つに限定されるも
のではない。
Note that the number of the pressers 8 is not limited to three.

次に、第2図に基づいて本考案の第2実施例を
説明する。この第2実施例は、取付け部材に設け
られた複数の押圧子がワークの基準外径に押接す
るとワークの芯出しを行なうように構成されたも
のである。
Next, a second embodiment of the present invention will be described based on FIG. This second embodiment is configured to center the workpiece when a plurality of pressers provided on the mounting member press against the reference outer diameter of the workpiece.

第2図に示すように、芯出し軸6には傾斜案内
部としての傾斜溝部6bが形成されており、ワー
ク取付部材7のワーク取付部71に基準外径W3
を持つワークWが取り付けられる。押圧子8は、
傾斜溝部6bに係合し、該傾斜溝部6bに追従し
て径方向に変位する従動部80と、連結部81を
介して従動部80に連結され、該従動部80と共
に径方向に変位してワークWの基準外径W3に押
接する押圧部82とから成つている。その他の構
成は上記第1実施例の場合と同様である。
As shown in FIG. 2, the centering shaft 6 is formed with an inclined groove portion 6b as an inclined guide portion, and the workpiece mounting portion 71 of the workpiece mounting member 7 is provided with a reference outer diameter W3.
A workpiece W having a shape is attached. The presser 8 is
A driven part 80 that engages with the inclined groove part 6b and is displaced in the radial direction following the inclined groove part 6b; It consists of a pressing part 82 that presses against the reference outer diameter W3 of the workpiece W. The other configurations are the same as in the first embodiment.

このように構成された上記第2実施例では、芯
出し軸6が突出位置から第2図に示す芯出し位置
に変位する間に、押圧子8の従動部80が傾斜溝
部6bの動きに追従して、突出した位置から第2
図に示す引つ込んだ位置まで径方向内側に変位
し、押圧部82が従動部80と共に径方向内側に
変位して該押圧部82の先端がワークWの基準外
径W3に押接し、ワークWの芯出しが成される。
このように、2つの実施例から共通していえるこ
とは、チヤツクボデイの基本的構成を変えずに取
付け部材の部分のみを取外して変えることによ
り、2つの実施例を実施することができる。即ち
取付け部材の変換により内締めワークにも外締め
のワークにも簡単に対応ができる。
In the second embodiment configured in this manner, while the centering shaft 6 is displaced from the protruding position to the centering position shown in FIG. 2, the driven portion 80 of the presser 8 follows the movement of the inclined groove portion 6b. from the protruding position.
The pressing part 82 is displaced radially inward to the retracted position shown in the figure, and the pressing part 82 is displaced radially inward together with the driven part 80, so that the tip of the pressing part 82 presses against the reference outer diameter W3 of the workpiece W, and the workpiece Centering of W is accomplished.
Thus, what is common to the two embodiments is that the two embodiments can be implemented by removing and changing only the mounting member portion without changing the basic structure of the chuck body. That is, by changing the mounting member, it is possible to easily handle both internally tightened workpieces and externally tightened workpieces.

(考案の効果) 本考案に係るフエースクランプチヤツクによれ
ば、駆動軸の動きに連動して芯出し軸が芯出し位
置に変位する際に、該芯出し軸の傾斜案内部に追
従して押圧子が径方向に変位し、ワークの基準穴
もしくは基準外径に押接することによつてワーク
の芯出しを行なうので、ワークをロボツト等でワ
ーク取付部に自動で取付けた場合でも、ワークの
芯出しを精度良く行なうことができる。また、ワ
ークの当接する取付部材をチヤツクボデイに着脱
自在としているのためワークの種類が変わつた場
合には、この取付部材のみを取外し、ワークの合
う別の取付部材を取付ければよい。従つて異なる
ワークの取付作業も簡単に行なうことができ能率
のよい融通性のよいチヤツク構成となつた。
(Effect of the invention) According to the face clamp chuck according to the invention, when the centering shaft is displaced to the centering position in conjunction with the movement of the drive shaft, the face clamp chuck follows the inclined guide portion of the centering shaft. The presser moves in the radial direction and centers the workpiece by pressing against the reference hole or reference outer diameter of the workpiece, so even if the workpiece is automatically mounted on the workpiece mounting part by a robot, etc. Centering can be performed with high precision. Further, since the mounting member that the workpiece contacts is detachable from the chuck body, when the type of workpiece changes, it is only necessary to remove this mounting member and install another mounting member that matches the workpiece. Therefore, it is possible to easily attach different workpieces, resulting in an efficient and flexible chuck structure.

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

第1図は本考案の第1実施例の要部を示す縦断
面図、第2図は本考案の第2実施例の要部を示す
縦断面図である。 1……スピンドル、1a……スピンドル内の貫
通孔、2……チヤツクボデイー、3……爪保持
軸、4……駆動軸、5……伝達部材、6……芯出
し軸、6a……傾斜案内部、6b……傾斜溝部
(傾斜案内部)、8……押圧子、30……把持爪、
70……ワーク取付部、W……ワーク、W1……
端面、W2……基準穴、W3……基準外径。
FIG. 1 is a longitudinal sectional view showing the main parts of a first embodiment of the present invention, and FIG. 2 is a longitudinal sectional view showing the main parts of the second embodiment of the invention. DESCRIPTION OF SYMBOLS 1...Spindle, 1a...Through hole in spindle, 2...Chuck body, 3...Claw holding shaft, 4...Drive shaft, 5...Transmission member, 6...Centering shaft, 6a...Inclination guide Part, 6b... Inclined groove part (inclined guide part), 8... Presser, 30... Gripping claw,
70... Work attachment part, W... Work, W1...
End face, W2... Reference hole, W3... Reference outer diameter.

Claims (1)

【実用新案登録請求の範囲】 工作機械の主軸端に固定されるチヤツク本体
と、 該主軸の貫通穴に挿通され主軸軸線方向に移動
自在な駆動部材と、 前記チヤツク本体に中心軸より等角度間隔にか
つこの中心軸に対して平行な位置に支持されると
ともに外周部に形成したカム溝により主軸軸線方
向およびこの軸線のまわりに摺動自在な複数の爪
保持軸と、 該爪保持軸の端部に装着され、ワークの端面部
に当接させて前記チヤツク本体との間にワークを
挟持する保持爪と、 前記駆動部材の移動を前記爪保持軸に伝達する
伝達部材と、 前記チヤツクボデイ前端部に取付けられワーク
の一端を当接する取付け部材と、 該取付け部材中心部に主軸軸線方向摺動自在に
支持されるとともに前記伝達部材と所定の間隔を
もつて離脱可能に構成され、前記伝達部材の移動
に伴い該伝達部材が当接した場合のみ移動し、か
つ、前部に傾斜案内部を形成した軸体と、 前記取付け部材に設けられこの取付け部材に対
して該軸体を主軸軸線方向に付勢している付勢手
段と、 前記取付け部材に半径方向摺動自在に設けられ
一端が前記軸体の傾斜案内部と係合し、他端が前
記付勢手段の付勢力でワークを押圧し、ワークの
径方向の芯出しを行う複数の押圧部材とからなる
ことを特徴としたフエースクランプチヤツク。
[Scope of Claim for Utility Model Registration] A chuck body fixed to the end of the main shaft of a machine tool, a drive member inserted into a through hole of the main shaft and movable in the direction of the axis of the main shaft, and a chuck body fixed at equal angular intervals from the central axis of the chuck body. and a plurality of pawl holding shafts supported in parallel to the central axis and slidable in the axial direction of the main shaft and around the axis by means of cam grooves formed on the outer periphery; and an end of the pawl holding shafts. a holding pawl that is attached to the chuck body and holds the workpiece between the chuck body and the chuck body by coming into contact with the end face of the workpiece; a transmission member that transmits movement of the driving member to the chuck holding shaft; and a front end portion of the chuck body. a mounting member that is attached to and abuts one end of the workpiece; and a mounting member that is supported in the center of the mounting member so as to be slidable in the axial direction of the main shaft and is detachable from the transmission member at a predetermined distance; A shaft body that moves only when the transmission member comes into contact with the movement and has an inclined guide portion formed in the front part; a biasing means that is biasing; and a biasing means provided on the mounting member so as to be slidable in a radial direction, one end of which engages with the inclined guide portion of the shaft body, and the other end of which presses the workpiece with the biasing force of the biasing means. A face clamp chuck characterized by comprising a plurality of pressing members for centering a workpiece in the radial direction.
JP1985047432U 1985-03-31 1985-03-31 Expired JPH0137850Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985047432U JPH0137850Y2 (en) 1985-03-31 1985-03-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985047432U JPH0137850Y2 (en) 1985-03-31 1985-03-31

Publications (2)

Publication Number Publication Date
JPS61166707U JPS61166707U (en) 1986-10-16
JPH0137850Y2 true JPH0137850Y2 (en) 1989-11-14

Family

ID=30562757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985047432U Expired JPH0137850Y2 (en) 1985-03-31 1985-03-31

Country Status (1)

Country Link
JP (1) JPH0137850Y2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH071213Y2 (en) * 1988-02-17 1995-01-18 本田技研工業株式会社 Machine tool chuck device
JP3798843B2 (en) * 1996-04-15 2006-07-19 帝国チャック株式会社 Lathe chuck device
JP4524875B2 (en) * 2000-07-07 2010-08-18 豊和工業株式会社 Chuck
JP2008213055A (en) * 2007-03-01 2008-09-18 Riken Seiki Kk Workpiece holding device
JP4638459B2 (en) * 2007-03-01 2011-02-23 理研精機株式会社 Work holding device
JP6396790B2 (en) * 2014-12-24 2018-09-26 トーヨーエイテック株式会社 Workpiece chuck device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5022382U (en) * 1973-06-19 1975-03-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5022382U (en) * 1973-06-19 1975-03-13

Also Published As

Publication number Publication date
JPS61166707U (en) 1986-10-16

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