JPH07256505A - Flexible power chuck for lathe - Google Patents
Flexible power chuck for latheInfo
- Publication number
- JPH07256505A JPH07256505A JP6182346A JP18234694A JPH07256505A JP H07256505 A JPH07256505 A JP H07256505A JP 6182346 A JP6182346 A JP 6182346A JP 18234694 A JP18234694 A JP 18234694A JP H07256505 A JPH07256505 A JP H07256505A
- Authority
- JP
- Japan
- Prior art keywords
- work
- chuck
- lathe
- cylinder
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
- B23B31/16287—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially using fluid-pressure means to actuate the gripping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/02—Use of a particular power source
- B23B2270/025—Hydraulics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/02—Use of a particular power source
- B23B2270/027—Pneumatics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、例えばトルクコンバ
ータのケースまたは未加工のブレーキドラムのように外
側が複雑な形状になっているものや、周壁が肉薄で歪み
易いものなどの通常のチャックでは把握歪みやヒビリが
生じて加工後の真円度を得るのが困難なワークを、チャ
ックと同芯基準になる箇所を把握歪みが生じないように
配慮した保持装置またはガイドで保持し、さらに、ワー
クの外周または内周を高密度に配列した掴持爪で均等な
力で把握することにより所望の部分を正確に加工する場
合に好適な旋盤用フレキシブルパワーチャックに関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applicable to ordinary chucks such as those having a complicated outer shape such as a case of a torque converter or an unprocessed brake drum, and those having a thin peripheral wall and easily distorted. A workpiece that is difficult to obtain roundness after machining due to gripping distortion or cracks is held by a holding device or guide that is designed so that gripping distortion does not occur at a location that is the same as the chuck and concentricity reference. The present invention relates to a flexible power chuck for a lathe suitable for accurately machining a desired portion by grasping the outer circumference or the inner circumference of a work with uniform force with a grasping claw arranged at high density.
【０００２】[0002]
【従来の技術】従来では、把握する部分が複雑な形状の
ものや、肉薄の周壁を有するワークをチャックにより掴
んで加工するに当り、基準とする部分が被加工物全体の
大きさに比較して小径である場合、この部分を掴んだだ
けでは不安定であるため、外周の部分を複数の掴持爪で
把握するようにしている。また把握部が同芯基準である
場合、掴持爪をワイドジョウにして把握力を弱くして加
工をしている。2. Description of the Related Art Conventionally, when a workpiece having a complicated grasping portion or a work having a thin peripheral wall is grasped by a chuck and machined, the reference portion is compared with the size of the whole workpiece. If the diameter is small, it is unstable just by grasping this portion, so the outer peripheral portion is grasped by a plurality of grasping claws. Further, when the grasping portion is concentric, the grasping claw is wide-bowed to weaken the grasping force for processing.
【０００３】[0003]
【発明が解決しようとする課題】しかし、従来のチャッ
クでは掴持爪の数が少なく、個々の押付け力が不均等な
ため、肉の薄い周壁を把握すると歪みが大きくなって精
密な加工ができないという問題があった。However, since the conventional chuck has a small number of gripping claws and the pressing force is not uniform, grasping a thin peripheral wall causes large distortion, which makes it impossible to perform precise machining. There was a problem.
【０００４】また、ワークの形状に適合する特殊な掴持
爪を用いるようにすると、ワークの形状が変る毎に新し
い掴持爪を作らなければならないという問題が生じる。If a special gripping claw that fits the shape of the work is used, a new gripping claw must be made every time the shape of the work changes.
【０００５】この発明の課題は、上記のような従来の旋
盤用チャックの問題点を解決するために、チャックと同
芯基準になる箇所を把握歪みが生じないように配慮した
保持装置やガイドで保持した後、同心性を損なうことな
くワークの周壁を多数の掴持爪により掴持するようにし
たフレキシブルな旋盤用チャックを提供することであ
る。An object of the present invention is to provide a holding device and a guide in order to solve the above problems of the conventional chuck for a lathe, grasping a portion serving as a reference concentric with the chuck and preventing distortion. (EN) Provided is a flexible lathe chuck in which a peripheral wall of a work is held by a large number of holding claws without being damaged after being held.
【０００６】[0006]
【課題を解決するための手段】上記の課題を解決するた
めに、この発明は旋盤の主軸に固定した筒状のチャック
本体の後壁に、ワークの端面を受けるリング状のワーク
ストッパを設け、同チャック本体の前部外周寄りに、気
体あるいは液体の圧力流体により前進し、ばねにより後
退するピストンを有する多数のシリンダを高密度で配置
し、上記ピストンには、前面をスパイク状とした高硬度
の丸棒状ワーク掴持爪を、その後部のねじを利用して交
換可能に固定し、上記各シリンダを共通の制御回路を経
て圧力流体供給手段に連通させ、上記チャック本体はワ
ークの加工基準部とチャック本体を同芯に保持する手段
を備えている構成のものと、上記ピストンの前進後退を
圧力流体により行うものを採用した。In order to solve the above problems, the present invention provides a ring-shaped work stopper for receiving an end face of a work on a rear wall of a cylindrical chuck body fixed to a main shaft of a lathe, A large number of cylinders with pistons that move forward by gas or liquid pressure fluid and retract by springs are arranged in high density near the front outer periphery of the chuck body. The rod-shaped workpiece gripping claw is replaceably fixed by using the screw on the rear part thereof, and each of the cylinders is connected to the pressure fluid supply means through a common control circuit. And a structure in which a means for holding the chuck body concentrically is provided and a structure in which the piston is moved forward and backward by a pressure fluid.
【０００７】また、圧力流体で作動するシリンダにより
駆動する高密度の丸棒状のワーク掴持爪によりワークを
内側から掴持するものも採用した。A high-density round bar-shaped work gripping claw driven by a cylinder operated by pressure fluid is also used to grip the work from the inside.
【０００８】[0008]
【作用】この発明は上記の構成であり、請求項１および
２の発明では、最初に肉薄の周壁を有するワークの端面
をワークストッパに当てがう。ついで、油圧作動のパワ
ーシリンダなどにより保持手段を作動させてワークの加
工基準部を正確に保持させる。The present invention has the above-mentioned structure. In the inventions of claims 1 and 2, first, the end surface of the work having the thin peripheral wall is applied to the work stopper. Then, the holding means is actuated by a hydraulically operated power cylinder or the like to accurately hold the machining reference portion of the work.
【０００９】そののち、チャック本体外周寄りの各シリ
ンダの制御回路を作動させて、圧力流体供給手段からの
圧力流体を上記各シリンダに供給すると、各シリンダの
ピストンが前進し、この各ピストンに設けた各掴持爪が
ワークの周壁を外側から掴持する。After that, when the control circuit of each cylinder near the outer circumference of the chuck body is operated to supply the pressure fluid from the pressure fluid supply means to each of the above cylinders, the piston of each cylinder moves forward and is provided on each piston. Each gripping claw grips the peripheral wall of the work from the outside.
【００１０】こうして、圧力流体によりワークを保持し
て旋削加工を行ったのち、ピストンに加わっている圧力
流体を排出し、ばねまたは圧力流体によりピストンを後
退させて各掴持爪によるワークの把握を解除し、ワーク
を取外す。In this way, after the workpiece is held by the pressure fluid to perform the turning process, the pressure fluid applied to the piston is discharged, and the piston is retracted by the spring or the pressure fluid to grasp the workpiece by each gripping claw. Release and remove the work.
【００１１】請求項３の発明では肉薄の周壁を有するワ
ークの端面をワークストッパに当てがい、各シリンダ内
のピストンを流体圧力により前進させて、各掴持爪によ
りワークの内周面を保持して旋削加工を行う。そのの
ち、各ピストンを流体圧力により後退させて各掴持爪に
よるワークの把握を解除し、ワークを取外す。According to the third aspect of the invention, the end surface of the work having the thin peripheral wall is applied to the work stopper, the piston in each cylinder is advanced by the fluid pressure, and the inner peripheral surface of the work is held by each holding claw. Perform turning. After that, each piston is retracted by the fluid pressure, the grasping of the work by each gripping claw is released, and the work is removed.
【００１２】[0012]
【実施例】図１ないし図４に示す実施例１において、１
は筒状のチャック本体で、この本体１の後部にボルト４
により固定した後壁２が、図示省略してある旋盤の主軸
の先端にボルトにより固定してある。５はリング状のワ
ークストッパで、ねじ止めにより複数の支持台６を後壁
２に固定し、この支持台６にねじ止めにより同芯に固定
する。上記本体１には多数（例えば２４個所）の孔状シ
リンダ７を半径方向、すなわち、放射状に高密度で設け
る。Embodiment 1 In Embodiment 1 shown in FIGS. 1 to 4, 1
Is a cylindrical chuck body.
The rear wall 2 is fixed by means of bolts to the tip of the main shaft of a lathe (not shown). Reference numeral 5 denotes a ring-shaped work stopper, which fixes a plurality of support bases 6 to the rear wall 2 by screwing, and concentrically fixes the support bases 6 by screwing. The main body 1 is provided with a large number (for example, 24) of hole-shaped cylinders 7 in the radial direction, that is, radially with a high density.
【００１３】１０は各シリンダ７内に進退自在に装着す
るピストンで、本体１の前端外周の凹所にはめてボルト
により固定した外輪１１と、同本体１の前端内周の凹所
にはめてボルトにより固定した内輪１２により各ピスト
ン１０の進退範囲をシリンダ７内において限定し、本体
１の前端には外輪１１と内輪１２の前面に接するリング
状の前面板９を固定する。Reference numeral 10 denotes a piston which is mounted in each cylinder 7 so as to be able to move forward and backward, and is fitted in a recess in the outer periphery of the front end of the main body 1 and fixed by a bolt and in a recess in the inner periphery of the front end of the main body 1. An inner ring 12 fixed by bolts limits the range of movement of each piston 10 within the cylinder 7, and a ring-shaped front plate 9 that is in contact with the front faces of the outer ring 11 and the inner ring 12 is fixed to the front end of the main body 1.
【００１４】１３は高硬度材料からなる掴持爪で、図３
のように、その後端の雄ねじ１４をピストン１０の内端
の雌ねじにねじ込んで固定してある。この掴持爪１３は
丸棒状で、その前部は内輪１２に設けた半径方向の孔を
摺動自在に貫通し、その前面１５はスパイク状となって
いる。Reference numeral 13 is a holding claw made of a high hardness material, which is shown in FIG.
As described above, the male screw 14 at the rear end is screwed into and fixed to the female screw at the inner end of the piston 10. The gripping claw 13 is in the shape of a round bar, the front portion of which slidably penetrates a radial hole provided in the inner ring 12, and the front surface 15 thereof has a spike shape.
【００１５】そして、上記掴持爪１３の外周と、ピスト
ン１０の前端内周から所要の深さに形成した大径内周面
の間に押ばね１６を装着してピストン１０を後方、すな
わち、外輪１１の方向に押圧する。Then, a pressing spring 16 is mounted between the outer circumference of the gripping claw 13 and the large-diameter inner peripheral surface formed to a required depth from the inner circumference of the front end of the piston 10 to move the piston 10 rearward, that is, Press in the direction of the outer ring 11.
【００１６】また、各ピストン１０の前側には軸方向の
溝１７を設け、この溝１７にボルト１９の内端の回止め
ピンを係合させる。このボルト１９は前面板９の挿通孔
に挿入して前面板９を本体１に固定する役目も果してい
る。An axial groove 17 is provided on the front side of each piston 10, and a detent pin at the inner end of the bolt 19 is engaged with the groove 17. The bolt 19 also serves to fix the front plate 9 to the main body 1 by inserting it into the insertion hole of the front plate 9.
【００１７】図１の２０は後壁２の中心を進退自在に貫
通する軸で、その後端にはドローバー２１を固定する。
上記軸２０の先端には大径部２２を一体に形成し、この
大径部２２を後壁２の中央に設けた凹部２３に遊嵌す
る。そして、上記大径部２２の外周のキー溝２４を凹部
２３の内周に固定したキー２５に係合させて回り止めと
する。Reference numeral 20 in FIG. 1 denotes a shaft that penetrates through the center of the rear wall 2 so as to move back and forth. A draw bar 21 is fixed to the rear end of the shaft.
A large-diameter portion 22 is integrally formed at the tip of the shaft 20, and the large-diameter portion 22 is loosely fitted in a recess 23 provided in the center of the rear wall 2. Then, the key groove 24 on the outer periphery of the large-diameter portion 22 is engaged with the key 25 fixed to the inner periphery of the recessed portion 23 to prevent rotation.
【００１８】上記軸２０の先端にはコレットチャック２
６をボルト２７により交換可能に固定する。このコレッ
トチャック２６は先端から所定の深さに設けた切込みに
より分割した複数の掴持爪を有するコレット２９と、そ
の外側の外筒３０からなり、この外筒３０は後壁２にボ
ルトにより交換可能に固定し、その前端内周のテーパ内
周面３１がコレット２９の外周のテーパ面に接してい
る。A collet chuck 2 is attached to the tip of the shaft 20.
6 is replaceably fixed by bolts 27. The collet chuck 26 is composed of a collet 29 having a plurality of gripping claws divided by a notch provided at a predetermined depth from the tip, and an outer cylinder 30 outside the collet 29. The outer cylinder 30 is replaced by a bolt on the rear wall 2. The taper inner peripheral surface 31 on the inner periphery of the front end is in contact with the taper surface on the outer periphery of the collet 29.
【００１９】３２は本体１、後壁２、外輪１１の外周付
近において、各シリンダ７の後端にそれぞれ連通するよ
うに設けた連通路である。上記各連通路３２の後端は、
後壁２に各連通路３２毎に設けた半径方向の連通路３３
に連通する。Reference numeral 32 is a communication passage provided near the outer periphery of the main body 1, the rear wall 2 and the outer ring 11 so as to communicate with the rear ends of the cylinders 7, respectively. The rear end of each communication passage 32 is
Radial communication passages 33 provided in the rear wall 2 for each communication passage 32
Communicate with.
【００２０】この各連通路３３は前記軸２０が貫通する
孔の内周の周溝３４に連通し、図４のように軸２０内に
設けた凹孔３５を放射状の連通孔３６で周溝３４に連通
させ、この凹孔３５はドローバー２１に設けた連通路３
７に連通させる。そして、この連通路３７を制御回路を
介して油圧、空気圧などの流体圧力源に連通させる。Each of the communication passages 33 communicates with a peripheral groove 34 in the inner circumference of a hole through which the shaft 20 passes, and a concave hole 35 provided in the shaft 20 is surrounded by a radial communication hole 36 as shown in FIG. 34, and the recessed hole 35 is used as a communication passage 3 provided in the drawbar 21.
Connect to 7. Then, the communication passage 37 is connected to a fluid pressure source such as hydraulic pressure or pneumatic pressure via a control circuit.
【００２１】なお、図１中の符号３９は外輪１１と内輪
１２を本体１に固定するボルトである。また、外輪１１
の内周と本体１のシリンダ７の外端の外周の間、ピスト
ン１０の外周、掴持爪１３が内輪１２を貫通する部分、
各連通路３２の継目の部分、軸２０が後壁２を貫通する
部分などにはＯリングを装着して圧力流体の漏洩を防止
する。Reference numeral 39 in FIG. 1 is a bolt for fixing the outer ring 11 and the inner ring 12 to the main body 1. Also, the outer ring 11
Between the inner circumference of the piston and the outer circumference of the outer end of the cylinder 7 of the main body 1, the outer circumference of the piston 10, the portion where the grip claw 13 penetrates the inner ring 12,
An O-ring is attached to a joint portion of each communication passage 32, a portion where the shaft 20 penetrates the rear wall 2, and the like to prevent leakage of the pressure fluid.
【００２２】図１の４０はこの発明のチャックで保持す
るワークで一例として、自動車用トルクコンバータの部
品を示している。このワーク４０はプレス成形品であ
り、その前部中央には突軸４１を摩擦溶接などの手段で
固定し、さらに、複数の突部４２を円周上に設けたもの
である。このワーク４０の場合、突軸４１の外周および
各突部４２の端面には既に精密仕上げが施してあるから
これを加工基準部とし、ワーク４０の内周と端面をこれ
から旋削仕上げするものである。Reference numeral 40 in FIG. 1 denotes a work held by the chuck of the present invention, and shows a part of a torque converter for an automobile as an example. The work 40 is a press-molded product, and a protruding shaft 41 is fixed to the center of the front portion thereof by means such as friction welding, and a plurality of protruding portions 42 are provided on the circumference. In the case of this work 40, the outer periphery of the salient shaft 41 and the end faces of the respective protrusions 42 have already been precision-finished, so this is used as a machining reference portion, and the inner periphery and end face of the work 40 are to be finished by turning. .
【００２３】いま、ドローバー２１が図１の位置より前
進している場合、その先端のコレットチャック２６のコ
レット２９は図４のように外筒３０のテーパ内周面３１
に対して前進し、自身の弾力で拡開状となっている。When the draw bar 21 is advanced from the position shown in FIG. 1, the collet 29 of the collet chuck 26 at the tip of the draw bar 21 is tapered inner peripheral surface 31 of the outer cylinder 30 as shown in FIG.
Against it, it has been expanded by its own elasticity.
【００２４】この状態で前記ワーク４０の中央の突軸４
１をコレットチャック２６のコレット２９内に挿入する
とともに、各突部４２をワークストッパ５に密着させ
る。In this state, the protruding shaft 4 at the center of the work 40
1 is inserted into the collet 29 of the collet chuck 26, and each protrusion 42 is brought into close contact with the work stopper 5.
【００２５】つぎに、図示省略してある旋盤のヘッドス
トックに設けた油圧またはエア作動のパワーシリンダを
働かせて、ドローバー２１を後退させると、軸２０も後
退し、コレット２９が後退してテーパ内周面３１により
内方に押され、突軸４１を掴持しながら後退する。Next, when the drawbar 21 is retracted by operating a hydraulic or air-operated power cylinder provided on a head stock of a lathe (not shown), the shaft 20 is also retracted, and the collet 29 is retracted to the inside of the taper. It is pushed inward by the peripheral surface 31 and moves backward while holding the protruding shaft 41.
【００２６】このため、ワーク４０の各突部４２もワー
クストッパ５に押し付けられるのでワーク４０は旋盤の
主軸と同芯に固定され軸方向の位置決めも行われる。上
記のようにコレットチャック２６が突軸４１を掴持した
条件で、流体圧力の制御回路が働き、ドローバー２１内
の連通路３７に供給された油圧、空気圧などの圧力流体
が、凹孔３５→連通孔３６→周溝３４→各連通路３３→
各連通路３２と流れて各シリンダ７の後部内に流入して
各ピストン１０の後部を押す。For this reason, since the projections 42 of the work 40 are also pressed against the work stopper 5, the work 40 is fixed concentrically with the main shaft of the lathe and positioned in the axial direction. Under the condition that the collet chuck 26 grips the protruding shaft 41 as described above, the fluid pressure control circuit operates, and the pressure fluid such as the hydraulic pressure and the pneumatic pressure supplied to the communication passage 37 in the drawbar 21 becomes the concave hole 35 → Communication hole 36 → peripheral groove 34 → each communication passage 33 →
It flows with each communication passage 32, flows into the rear portion of each cylinder 7, and pushes the rear portion of each piston 10.
【００２７】このため、各掴持爪１３のスパイク状の前
面１５がワーク４０の外周に押し付けられるがこの際、
ワーク４０の外周に多少の偏心や凹凸があっても各掴持
爪１３の移動量がそれに応じて自動的に調整され、各掴
持爪１３がワーク４０の凹凸に関係なく均一な力で無理
なくワーク４０を固定する。図１は上記の作用でワーク
４０を固定した状態であって、この状態で旋盤の主軸の
回転によりワーク４０を回転させて、ワーク４０の内面
に旋削仕上げを施す。Therefore, the spike-shaped front surface 15 of each gripping claw 13 is pressed against the outer periphery of the work 40. At this time,
Even if there is some eccentricity or unevenness on the outer periphery of the work 40, the amount of movement of each gripping claw 13 is automatically adjusted accordingly, and each gripping claw 13 cannot be applied with a uniform force regardless of the unevenness of the work 40. The work 40 is fixed. FIG. 1 shows a state in which the work 40 is fixed by the above-mentioned operation, and in this state, the work 40 is rotated by the rotation of the main shaft of the lathe, and the inner surface of the work 40 is subjected to turning finishing.
【００２８】仕上げが終了すると、制御回路の働きで連
通路３７に供給されていた圧力流体が排出され、かつパ
ワーシリンダの働きによりドローバー２１が前進するの
でコレットチャック２６のコレット２９が開いて突軸４
１を離し、各ピストン１０も押ばね１６により後退して
ワーク４０の外周の把握を解くのでワーク４０は容易に
取外すことができる。When the finishing is completed, the pressure fluid supplied to the communication passage 37 is discharged by the function of the control circuit, and the draw bar 21 is moved forward by the function of the power cylinder. Four
1 is released, and each piston 10 is also retracted by the pressing spring 16 to release the grasp of the outer periphery of the work 40, so that the work 40 can be easily removed.
【００２９】図５は実施例２を示すもので、ワーク４３
の中心の孔４５が仕上げ加工ずみであるから、これを基
準部としている。FIG. 5 shows the second embodiment, in which the work 43
Since the hole 45 at the center is finished, it is used as a reference portion.
【００３０】この場合、コレットチャック４６は軸２０
のねじ孔に、端部のねじにより固定したプルシャフト４
７と、その外側のコレット４９からなり、後壁２にねじ
止めにより着脱自在に固定したコレット４９は複数の切
込みにより複数の掴持爪に分割され、プルシャフト４７
の先端大径部外周のテーパ面５０がコレット４９の先端
内周のテーパ面に接している。他の部分の構造は実施例
１と同じであるから同一の符号を付して説明を省略す
る。In this case, the collet chuck 46 includes the shaft 20.
Pull shaft 4 fixed to the screw hole of
7 and a collet 49 on the outside thereof, which is detachably fixed to the rear wall 2 by screwing, is divided into a plurality of holding claws by a plurality of cuts, and a pull shaft 47 is provided.
The taper surface 50 on the outer circumference of the large diameter portion of the tip of the collet 49 is in contact with the taper surface on the inner circumference of the tip of the collet 49. Since the structure of the other parts is the same as that of the first embodiment, the same reference numerals are given and the description thereof is omitted.
【００３１】この実施例２の場合、ワーク４３の端面と
孔４５が仕上ずみであるから、これを加工基準部として
ワーク４３の内周と端面を仕上げる。In the case of the second embodiment, since the end surface of the work 43 and the hole 45 are finished, the inner circumference and the end surface of the work 43 are finished by using this as a machining reference portion.
【００３２】いま、ドローバー２１が図５の位置より前
進している場合、その先端のプルシャフト４７はコレッ
ト４９に対して前進しているのでコレット４９は自身の
弾力で縮径状となっている。この状態で前記ワーク４３
の中央の孔４５にコレット４９を挿入するとともに、ワ
ーク４３の端面をワークストッパ５の突部に密着させ
る。Now, when the draw bar 21 is advanced from the position shown in FIG. 5, the pull shaft 47 at the tip thereof is advanced with respect to the collet 49, so that the collet 49 is reduced in diameter by its own elasticity. . In this state, the work 43
The collet 49 is inserted into the hole 45 at the center, and the end face of the work 43 is brought into close contact with the projection of the work stopper 5.
【００３３】つぎに、図示省略してある旋盤のヘッドス
トックに設けた油圧またはエア作動のパワーシリンダを
働かせて、ドローバー２１を後退させると、軸２０も後
退し、プルシャフト４７がコレット４９に対し後退して
その外周のテーパ面５０によりコレット４９を拡径し、
孔４５を把握する。Next, when the drawbar 21 is retracted by operating a hydraulic or air-operated power cylinder provided in a lathe headstock (not shown), the shaft 20 is also retracted, and the pull shaft 47 is moved relative to the collet 49. Retreat and expand the diameter of the collet 49 with the taper surface 50 on its outer periphery,
Grasp the hole 45.
【００３４】上記のようにコレットチャック４６が孔４
５を把握した条件で、流体圧力の制御回路が働き、ドロ
ーバー２１内の連通路３７に供給された油圧、空気圧な
どの圧力流体が、凹孔３５→連通孔３６→周溝３４→各
連通路３３→各連通路３２と流れて各シリンダ７の後部
内に流入して各ピストン１０の後部を押す。As described above, the collet chuck 46 has the hole 4
5, the fluid pressure control circuit operates, and the pressure fluid such as hydraulic pressure and pneumatic pressure supplied to the communication passage 37 in the drawbar 21 is changed to the concave hole 35 → the communication hole 36 → the peripheral groove 34 → each communication passage. 33 → flows into each communication passage 32, flows into the rear portion of each cylinder 7, and pushes the rear portion of each piston 10.
【００３５】このため、各掴持爪１３のスパイク状の前
面１５がワーク４３の外周に押し付けられるがこの際、
ワーク４３の外周に多少の偏心や凹凸があっても各掴持
爪１３の移動量がそれに応じて自動的に調整され、各掴
持爪１３がワーク４３の凹凸に関係なく均一な力で無理
なくワーク４３を固定する。図５は上記の作用でワーク
４３を固定した状態であって、この状態で旋盤の主軸の
回転によりワーク４３を回転させて、ワーク４３の内面
に旋削仕上げを施す。Therefore, the spike-shaped front surface 15 of each gripping claw 13 is pressed against the outer periphery of the work 43. At this time,
Even if there is some eccentricity or unevenness on the outer periphery of the work 43, the amount of movement of each gripping claw 13 is automatically adjusted accordingly, and each gripping claw 13 cannot be applied with a uniform force regardless of the unevenness of the work 43. Instead, the work 43 is fixed. FIG. 5 shows a state in which the work 43 is fixed by the above-mentioned action, and in this state, the work 43 is rotated by the rotation of the main shaft of the lathe, and the inner surface of the work 43 is subjected to turning finishing.
【００３６】仕上げが終了すると、制御回路の働きで連
通路３７に供給されていた圧力流体が排出され、かつパ
ワーシリンダの働きによりドローバー２１が前進するの
でコレットチャック４６のコレット４９が縮径して孔４
５から離れ、各ピストン１０も押ばね１６により後退し
てワーク４３の外周の把握を解くのでワーク４３は容易
に取外すことができる。When the finishing is completed, the pressure fluid supplied to the communication passage 37 is discharged by the action of the control circuit, and the draw bar 21 is advanced by the action of the power cylinder, so that the collet 49 of the collet chuck 46 is reduced in diameter. Hole 4
5, the pistons 10 are also retracted by the pressing springs 16 to release the grasp of the outer periphery of the work 43, so that the work 43 can be easily removed.
【００３７】図６に示す実施例３はワーク５３の端面と
外周とを基準にして未加工のワークの内面や孔を仕上げ
る場合を示し、この場合、内輪１２の内周面の例えば三
等分位置にそれぞれ金属製ラフガイド５４を止ねじ５５
により着脱自在に固定する。The third embodiment shown in FIG. 6 shows a case where the inner surface and the hole of the unworked work are finished with reference to the end surface and the outer circumference of the work 53. In this case, for example, the inner circumference surface of the inner ring 12 is divided into three equal parts. Set the metal rough guides 54 to the respective positions with the set screws 55.
It is detachably fixed by.
【００３８】また、コレットチャックを外したあとの凹
部２３は防塵蓋５６をねじ止めして閉鎖する。The recess 23 after the collet chuck is removed is closed by screwing the dustproof lid 56.
【００３９】この場合、ワーク５３の端面をワークスト
ッパ５に密着させるとともにワーク５３の外周をラフガ
イド５４に沿わせたのち、流体圧力の制御回路を働かせ
ると、ドローバー２１内の連通路３７に供給された油
圧、空気圧などの圧力流体が、凹孔３５→連通孔３６→
周溝３４→各連通路３３→各連通路３２と流れて各シリ
ンダ７の後部内に流入して各ピストン１０の後部を押
す。In this case, when the end surface of the work 53 is brought into close contact with the work stopper 5 and the outer circumference of the work 53 is made to follow the rough guide 54, and the fluid pressure control circuit is activated, the fluid is supplied to the communication passage 37 in the drawbar 21. The pressure fluid such as the hydraulic pressure and the pneumatic pressure that is generated is formed in the concave hole 35 → the communication hole 36 →
It flows in the circumferential groove 34 → each communication passage 33 → each communication passage 32 and flows into the rear portion of each cylinder 7 to push the rear portion of each piston 10.
【００４０】このため、各掴持爪１３のスパイク状の前
面１５がワーク５３の外周に押し付けられるがこの際、
ワーク５３の外周に多少の偏心や凹凸があっても各掴持
爪１３の移動量がそれに応じて自動的に調整され、各掴
持爪１３がワーク５３の凹凸に関係なく均一な力で無理
なくワーク５３を固定する。図６は上記の作用でワーク
５３を固定した状態であって、この状態で旋盤の主軸の
回転によりワーク５３を回転させて、ワーク５３の内面
に旋削仕上げを施す。For this reason, the spike-shaped front surface 15 of each gripping claw 13 is pressed against the outer periphery of the work 53. At this time,
Even if there is some eccentricity or unevenness on the outer periphery of the work 53, the amount of movement of each gripping claw 13 is automatically adjusted accordingly, and each gripping claw 13 cannot be applied with a uniform force regardless of the unevenness of the work 53. The work 53 is fixed instead. FIG. 6 shows a state in which the work 53 is fixed by the above-mentioned action. In this state, the work 53 is rotated by the rotation of the main shaft of the lathe, and the inner surface of the work 53 is subjected to turning finishing.
【００４１】仕上げが終了したのち、制御回路を働かせ
て連通路３７に供給されていた圧力流体を排出すると、
各ピストン１０は押ばねにより後退してワーク５３の外
周の把握を解くのでワーク５３は容易に取外すことがで
きる。After finishing, when the control circuit is operated to discharge the pressure fluid supplied to the communication passage 37,
Since each piston 10 is retracted by the pressing spring to release the grasp of the outer periphery of the work 53, the work 53 can be easily removed.
【００４２】上記各実施例は圧力流体によりピストン１
０の後部を押し、ピストン後部に加わる圧力流体を排除
すると押ばね１６によりピストン１０が復帰するもので
あるが、図７はピストン１０の前進後退を油圧、空気圧
のような圧力流体で行う場合を示している。In each of the above-mentioned embodiments, the piston 1 is operated by the pressure fluid.
When the rear part of 0 is pushed and the pressure fluid applied to the rear part of the piston is removed, the piston 10 is returned by the pressing spring 16. However, FIG. 7 shows a case where the piston 10 is moved forward and backward with a pressure fluid such as hydraulic pressure or pneumatic pressure. Shows.
【００４３】この場合は他の実施例のような押ばね１６
は不要となり、そのかわりに復帰用圧力流体の連通路５
１を前記連通路３２と並列に設けて各シリンダ７の前部
に連通させる。In this case, the pressing spring 16 as in the other embodiments is used.
Need not be provided, and instead, the return pressure fluid communication passage 5
1 is provided in parallel with the communication passage 32 to communicate with the front portion of each cylinder 7.
【００４４】そして、図では省略してあるが、図１など
に示されている連通路３３と並列の連通路を設け、この
連通路をドローバー２１の連通路３７と並列の連通路に
連通路３３の場合と同様に連通させて、これらの連通路
を４ポート２位置切換弁などを介して油圧、空気圧など
の流体圧力源に連通させる。Although not shown in the figure, a communication passage parallel to the communication passage 33 shown in FIG. 1 and the like is provided, and this communication passage is connected to the communication passage parallel to the communication passage 37 of the drawbar 21. In the same manner as in the case of No. 33, these communication passages are communicated with a fluid pressure source such as hydraulic pressure or pneumatic pressure via a 4-port 2-position switching valve or the like.
【００４５】このような流体回路を構成すると、切換弁
の切換えにより、連通路３２を圧力源、連通路５１を油
タンクまたは大気に開放するとピストン１０は前進し、
切換弁を逆方向に切換えて連通路５１を圧力源、連通路
３２を油タンクまたは大気に開放すると流体は逆に流れ
てピストン１０は後退する。With such a fluid circuit, when the switching valve is switched to open the communication passage 32 to the pressure source and the communication passage 51 to the oil tank or the atmosphere, the piston 10 moves forward,
When the switching valve is switched in the opposite direction to open the communication passage 51 to the pressure source and the communication passage 32 to the oil tank or the atmosphere, the fluid flows in the opposite direction and the piston 10 retracts.
【００４６】その他の部分の構成や作用は他の実施例と
同一であるから説明を省略する。The structure and operation of the other parts are the same as those of the other embodiments, and therefore their explanations are omitted.
【００４７】図８、図９に示すものは請求項３に示す発
明の実施例であり、６０はそのチャック本体である。こ
の本体６０の後部に一体に設けた後壁６１を図示省略し
てある旋盤の主軸に複数のボルト６２により固定する。FIGS. 8 and 9 show an embodiment of the invention described in claim 3, and 60 is the chuck body. A rear wall 61 provided integrally with the rear portion of the main body 60 is fixed to a main shaft of a lathe (not shown) by a plurality of bolts 62.
【００４８】６３は本体６０の外周にはめて図示省略し
てある複数のボルトで固定した外筒で、その外周のリン
グ状のワークストッパ６４が複数のボルトにより固定さ
れている。Reference numeral 63 denotes an outer cylinder fitted to the outer periphery of the main body 60 and fixed by a plurality of bolts (not shown). A ring-shaped work stopper 64 on the outer periphery is fixed by a plurality of bolts.
【００４９】６５は本体６０に設けた多数（例えば２４
個所）の半径方向の丸孔状シリンダである。この各シリ
ンダ６５内に進退自在の装着したピストン６６には高硬
度材料からなる掴持爪６７を固定するが、この掴持爪６
７は丸棒状でその後端の雄ねじをピストン６６の雌ねじ
にねじ込んで固定する。この掴持爪６７の前面６９はス
パイク状となっている。Reference numeral 65 denotes a large number (for example, 24
It is a circular hole cylinder in the radial direction at a point). A holding claw 67 made of a high-hardness material is fixed to the piston 66 mounted in each of the cylinders 65 so as to be movable back and forth.
Reference numeral 7 is a round bar shape, and the male screw at the rear end thereof is screwed into the female screw of the piston 66 to be fixed. The front surface 69 of the grip claw 67 has a spike shape.
【００５０】また、ピストン６６の雌ねじは前方へ偏心
させて設けてあるから掴持爪６７はシリンダ６５に対し
て前方へ偏心し、かつ、外筒６３に設けたガイド孔に摺
動自在にはまっている。Further, since the female screw of the piston 66 is eccentrically provided forward, the gripping claw 67 is eccentric forward with respect to the cylinder 65 and is slidably fitted in a guide hole provided in the outer cylinder 63. ing.
【００５１】このようにすることによりシリンダ６５の
前壁の厚みを十分に確保しながら掴持爪６７を前に寄せ
ることができる。７０は本体６０の内側に前記ボルト６
２を利用して固定した内筒でその外周の周溝７１が各シ
リンダ６５の内端に通じ、この周溝７１が内筒７０、後
壁６１に設けた連通路７２、７３により後壁６１の中心
に設けた連通管７４に連通する。By doing so, the gripping claw 67 can be moved forward while ensuring a sufficient thickness of the front wall of the cylinder 65. 70 is the bolt 6 inside the body 60.
In the inner cylinder fixed by using 2, the outer peripheral circumferential groove 71 communicates with the inner end of each cylinder 65, and the peripheral groove 71 is formed by the inner cylinder 70 and the rear wall 61 by the communicating passages 72, 73. It communicates with the communication pipe 74 provided at the center of.
【００５２】また、外筒６３の内周の周溝７５が各シリ
ンダ６５の外端に通じ、この周溝７５が後壁６１に設け
た連通路７６に通じている。A peripheral groove 75 on the inner circumference of the outer cylinder 63 communicates with the outer end of each cylinder 65, and the peripheral groove 75 communicates with a communication passage 76 provided in the rear wall 61.
【００５３】７７は後壁６１の前面中央にボルトにより
固定した前蓋で、この前蓋７７の後部中央に連通管７８
を連結し、この連通管７８と前記連通路７６を前蓋７７
に設けた連通路７９により連通させる。そして、これら
の連通管７４、７８を制御回路を介して油圧、空気圧な
どの流体圧力源に連通させる。Reference numeral 77 is a front lid fixed to the center of the front surface of the rear wall 61 with a bolt, and a communication pipe 78 is provided at the center of the rear portion of the front lid 77.
To connect the communication pipe 78 and the communication passage 76 to the front lid 77.
The communication path 79 is provided to connect the two. Then, these communication pipes 74 and 78 are connected to a fluid pressure source such as hydraulic pressure or pneumatic pressure via a control circuit.
【００５４】また、本体６０の外周と外筒６３の内周の
間、本体６０の内周と内筒７０の間、ピストン６６の外
周、掴持爪６７が外筒６３のガイド孔を貫通する部分、
連通管７４、７８が後壁６１、前蓋７７にはまる部分な
どにはＯリングを装着して圧力流体の漏洩を防止する。Further, the outer circumference of the main body 60 and the inner circumference of the outer cylinder 63, the inner circumference of the main body 60 and the inner cylinder 70, the outer circumference of the piston 66, and the grip claw 67 penetrate the guide holes of the outer cylinder 63. part,
An O-ring is attached to a portion where the communication pipes 74 and 78 fit into the rear wall 61 and the front lid 77, etc. to prevent leakage of the pressure fluid.
【００５５】この実施例においてはワーク４０の内周を
把握する。すなわち、各掴持爪６７が後退している状態
において、ワーク４０の周壁を外筒６３に被せるととも
に、このワーク４０の周壁端縁をワークストッパ６４に
当てがって位置決めする。In this embodiment, the inner circumference of the work 40 is grasped. That is, in a state in which each gripping claw 67 is retracted, the outer wall 63 is covered with the peripheral wall of the work 40, and the peripheral edge of the work 40 is applied to the work stopper 64 for positioning.
【００５６】つぎに、流体圧力制御回路を働かせ、油
圧、空気圧などの圧力流体を連通管７４→連通路７３、
７２→周溝７１と流すと圧力流体が各シリンダ６５の内
端に流入し、シリンダ６５の外側の流体は周溝７５→連
通路７６、７９→連通管７８と流れて排出されるから、
各掴持爪６７のスパイク状の前面６９がワーク４０の内
周に押し付けられるがこの際、ワーク４０の内周に多少
の偏心や凹凸があっても各掴持爪６７の移動量がそれに
応じて自動的に調整され、各掴持爪６７がワーク４０の
凹凸に関係なく均一な力で無理なくワーク４０を固定す
る。図８は上記の作用でワーク４０を固定した状態であ
って、この状態で旋盤の主軸の回転によりワーク４０を
回転させて、ワーク４０の外面や端面に旋削仕上げを施
す。Next, the fluid pressure control circuit is activated to allow the pressure fluid such as hydraulic pressure and pneumatic pressure to flow through the communication pipe 74 → communication passage 73,
When the fluid flows from 72 to the circumferential groove 71, the pressure fluid flows into the inner end of each cylinder 65, and the fluid on the outer side of the cylinder 65 flows from the circumferential groove 75 to the communication passages 76 and 79 and the communication pipe 78 and is discharged.
The spike-shaped front surface 69 of each holding claw 67 is pressed against the inner circumference of the work 40. At this time, even if there is some eccentricity or unevenness on the inner circumference of the work 40, the amount of movement of each holding claw 67 accordingly. Is automatically adjusted, and each gripping claw 67 fixes the work 40 with a uniform force regardless of the unevenness of the work 40. FIG. 8 shows a state in which the work 40 is fixed by the above-mentioned operation, and in this state, the work 40 is rotated by the rotation of the main shaft of the lathe, and the outer surface and the end surface of the work 40 are subjected to turning finishing.
【００５７】仕上げが終了すると、制御回路の働きで連
通管７４に供給されていた圧力流体が排出され、連通管
７８に圧力流体が供給されて各ピストン６６が掴持爪６
７とともに後退してワーク４０の把握を解く。When the finishing is completed, the pressure fluid supplied to the communication pipe 74 is discharged by the function of the control circuit, the pressure fluid is supplied to the communication pipe 78, and each piston 66 is held by the holding claws 6.
Retreat together with 7 to release the grasp of the work 40.
【００５８】[0058]
【効果】この発明のパワーチャックはワークの中心部そ
の他の基準部をコレットチャックで正確に把握したり、
ワークの周壁をワークストッパで支持したりした状態で
ワークの周壁を高密度に配置した多数の掴持爪により外
側または内側から把握するので、周壁が肉薄で歪み易い
ワークの場合も正確な旋削仕上げが行える。[Effect] The power chuck of the present invention accurately grasps the central portion of the work and other reference portions with the collet chuck,
While the peripheral wall of the workpiece is supported by the workpiece stopper, the peripheral wall of the workpiece is grasped from the outside or inside by a large number of gripping claws arranged in high density, so accurate turning finish is possible even when the peripheral wall is thin and easily distorted. Can be done.
【００５９】また、周壁の掴持面の形状が多少異なるワ
ークに対しても、各掴持爪がそれに応じて移動するので
ワークの形状が変る毎に掴持爪を取替える必要がない。Further, even for a work whose gripping surface of the peripheral wall has a slightly different shape, each gripping claw moves accordingly, so that it is not necessary to replace the gripping claw every time the shape of the work changes.
【００６０】さらに、ワーク掴持爪は交換可能であるか
ら、ワークの外周形状が変更された場合、これに適した
ワーク掴持爪に簡単に取替えることができるなどの効果
がある。Further, since the work gripping claw can be replaced, there is an effect that when the outer peripheral shape of the work is changed, the work gripping claw suitable for this can be easily replaced.
【図１】実施例１の縦断側面図FIG. 1 is a vertical side view of a first embodiment.
【図２】同上の一部切欠正面図FIG. 2 is a partially cutaway front view of the above.
【図３】同じく要部の拡大縦断側面図[Fig. 3] Similarly, an enlarged vertical side view of the main part
【図４】同じくコレットチャック部の拡大縦断側面図FIG. 4 is an enlarged vertical side view of the collet chuck section.
【図５】実施例２の縦断側面図FIG. 5 is a vertical sectional side view of the second embodiment.
【図６】実施例３の縦断側面図FIG. 6 is a vertical sectional side view of the third embodiment.
【図７】要部の他の例を示す拡大縦断側面図FIG. 7 is an enlarged vertical side view showing another example of the main part.
【図８】実施例４の縦断側面図FIG. 8 is a vertical sectional side view of the fourth embodiment.
【図９】同上の一部切欠正面図FIG. 9 is a partially cutaway front view of the above.
１ チャック本体 ２ 後壁 ５ ワークストッパ ７ シリンダ １０ ピストン １３ 掴持爪 １５ スパイク状の前面 １６ 押ばね ２１ ドローバー ２６ コレットチャック ２９ コレット ４０ ワーク ４１ 突軸 ４３ ワーク ４５ 孔 ５３ ワーク ５４ ラフガイド ６０ チャック本体 ６４ ワークストッパ ６５ シリンダ ６６ ピストン ６７ 掴持爪 ６９ スパイク状の前面 1 Chuck Main Body 2 Rear Wall 5 Work Stopper 7 Cylinder 10 Piston 13 Gripping Claw 15 Spike-shaped Front 16 Push Spring 21 Drawbar 26 Collet Chuck 29 Collet 40 Work 41 Projection Shaft 43 Work 45 Hole 53 Work 54 Rough Guide 60 Chuck Body 64 Work stopper 65 Cylinder 66 Piston 67 Grip claw 69 Spike-shaped front surface
Claims (3)
体の後壁に、ワークの端面を受けるリング状のワークス
トッパを設け、同チャック本体の前部外周寄りに、圧力
流体により前進し、ばねにより後退するピストンを有す
る多数のシリンダを高密度で配置し、上記ピストンに
は、前面をスパイク状とした高硬度の丸棒状ワーク掴持
爪を、その後部のねじを利用して交換可能に固定し、上
記各シリンダを共通の制御回路を経て圧力流体供給手段
に連通させ、上記チャック本体はワークの加工基準部と
チャック本体を同芯に保持する手段を備えていることを
特徴とする旋盤用フレキシブルパワーチャック。1. A ring-shaped work stopper for receiving an end face of a work is provided on a rear wall of a cylindrical chuck body fixed to a main shaft of a lathe, and is advanced toward the outer periphery of the front of the chuck body by a pressure fluid, A large number of cylinders with pistons retracted by springs are arranged at high density, and a high-hardness round bar-shaped workpiece gripping claw with a spike-shaped front surface can be replaced on the pistons by using screws on the rear part. The lathe is fixed, and each cylinder is communicated with the pressure fluid supply means through a common control circuit, and the chuck main body is provided with means for holding the machining reference portion of the workpiece and the chuck main body coaxially. Flexible power chuck for.
は液体の流体圧力により前進および後退させる復動式に
したことを特徴とする請求項１記載の旋盤用フレキシブ
ルパワーチャック。2. The flexible power chuck for a lathe according to claim 1, wherein the piston in the cylinder is of a reciprocating type which is moved forward and backward by a fluid pressure of gas or liquid.
周にワークの端面を受けるワークストッパを設け、この
ワークストッパの内寄りに、圧力流体の作用で進退する
ピストンを有する多数のシリンダを高密度で配置し、上
記各ピストンには、外端をスパイク状とした高硬度の丸
棒状ワーク掴持爪を外向きに固定して各シリンダの外端
から突出させたことを特徴とする旋盤用フレキシブルパ
ワーチャック。3. A work stopper for receiving an end face of a work is provided on the outer periphery of a chuck body fixed to a main shaft of a lathe, and a large number of cylinders having a piston that moves forward and backward by the action of pressure fluid are provided inside the work stopper at high density. A flexible lathe for lathes, characterized in that a high-hardness round bar-shaped workpiece gripping claw with a spike-shaped outer end is fixed to each piston outwardly and protrudes from the outer end of each cylinder. Power chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6182346A JPH07256505A (en) | 1994-02-02 | 1994-08-03 | Flexible power chuck for lathe |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6-10972 | 1994-02-02 | ||
| JP1097294 | 1994-02-02 | ||
| JP6182346A JPH07256505A (en) | 1994-02-02 | 1994-08-03 | Flexible power chuck for lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07256505A true JPH07256505A (en) | 1995-10-09 |
Family
ID=26346335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6182346A Pending JPH07256505A (en) | 1994-02-02 | 1994-08-03 | Flexible power chuck for lathe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07256505A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0862960A1 (en) * | 1997-03-06 | 1998-09-09 | Teikoku Chuck Co., Ltd. | Chuck assembly |
| US5947449A (en) * | 1998-02-18 | 1999-09-07 | Dube; Jean-Guy | Apparatus for lifting or supporting modular furniture |
| JP2000126916A (en) * | 1998-10-23 | 2000-05-09 | Yutaka Seimitsu Kogyo Ltd | Chuck device for cylindrical work |
| WO2000025965A1 (en) * | 1998-10-30 | 2000-05-11 | Hayes Lemmerz International, Inc. | Apparatus and method for machining a hollow generally cylindrical workpiece |
| JP2004230524A (en) * | 2003-01-31 | 2004-08-19 | Toyota Motor Corp | Work clamping device and work clamping method |
| JP2005125429A (en) * | 2003-10-22 | 2005-05-19 | Teikoku Chuck Kk | Chuck device |
| JP2007153270A (en) * | 2005-12-08 | 2007-06-21 | Nissin Kogyo Co Ltd | Interlocking brake mechanism for bar handle vehicle |
| KR101050491B1 (en) * | 2010-12-30 | 2011-07-20 | 심낙서 | Hydraulic chuck |
| CN102430939A (en) * | 2011-10-31 | 2012-05-02 | 南通爱慕希机械有限公司 | Processing fixture for tube-shaped component |
| US20120319364A1 (en) * | 2010-05-20 | 2012-12-20 | Teikoku Chuck Co., Ltd. | Chuck assembly for light alloy wheels |
| CN102862065A (en) * | 2011-07-04 | 2013-01-09 | 加特可株式会社 | Spring clamp apparatus for impeller housing |
| CN104589099A (en) * | 2014-12-03 | 2015-05-06 | 武汉船用机械有限责任公司 | Tool for vertical lathe machining of ring-cone-shaped thin-walled part and application thereof |
| CN113649611A (en) * | 2021-09-08 | 2021-11-16 | 张国文 | Free floating chuck |
| CN114131392A (en) * | 2021-12-31 | 2022-03-04 | 山东中创重工科技有限公司 | Large-cylinder-diameter piston machining tool clamp |
-
1994
- 1994-08-03 JP JP6182346A patent/JPH07256505A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0862960A1 (en) * | 1997-03-06 | 1998-09-09 | Teikoku Chuck Co., Ltd. | Chuck assembly |
| US5947449A (en) * | 1998-02-18 | 1999-09-07 | Dube; Jean-Guy | Apparatus for lifting or supporting modular furniture |
| JP2000126916A (en) * | 1998-10-23 | 2000-05-09 | Yutaka Seimitsu Kogyo Ltd | Chuck device for cylindrical work |
| WO2000025965A1 (en) * | 1998-10-30 | 2000-05-11 | Hayes Lemmerz International, Inc. | Apparatus and method for machining a hollow generally cylindrical workpiece |
| JP2004230524A (en) * | 2003-01-31 | 2004-08-19 | Toyota Motor Corp | Work clamping device and work clamping method |
| JP2005125429A (en) * | 2003-10-22 | 2005-05-19 | Teikoku Chuck Kk | Chuck device |
| JP2007153270A (en) * | 2005-12-08 | 2007-06-21 | Nissin Kogyo Co Ltd | Interlocking brake mechanism for bar handle vehicle |
| JP4533307B2 (en) * | 2005-12-08 | 2010-09-01 | 日信工業株式会社 | Interlocking brake mechanism for bar handle vehicles |
| US20120319364A1 (en) * | 2010-05-20 | 2012-12-20 | Teikoku Chuck Co., Ltd. | Chuck assembly for light alloy wheels |
| KR101050491B1 (en) * | 2010-12-30 | 2011-07-20 | 심낙서 | Hydraulic chuck |
| CN102862065A (en) * | 2011-07-04 | 2013-01-09 | 加特可株式会社 | Spring clamp apparatus for impeller housing |
| JP2013013972A (en) * | 2011-07-04 | 2013-01-24 | Jatco Ltd | Collet chuck device for impeller shell |
| CN102430939A (en) * | 2011-10-31 | 2012-05-02 | 南通爱慕希机械有限公司 | Processing fixture for tube-shaped component |
| CN104589099A (en) * | 2014-12-03 | 2015-05-06 | 武汉船用机械有限责任公司 | Tool for vertical lathe machining of ring-cone-shaped thin-walled part and application thereof |
| CN113649611A (en) * | 2021-09-08 | 2021-11-16 | 张国文 | Free floating chuck |
| CN113649611B (en) * | 2021-09-08 | 2024-04-16 | 张国文 | Free floating chuck |
| CN114131392A (en) * | 2021-12-31 | 2022-03-04 | 山东中创重工科技有限公司 | Large-cylinder-diameter piston machining tool clamp |
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