JPS61125710A - Chuck device - Google Patents

Chuck device

Info

Publication number
JPS61125710A
JPS61125710A JP59246720A JP24672084A JPS61125710A JP S61125710 A JPS61125710 A JP S61125710A JP 59246720 A JP59246720 A JP 59246720A JP 24672084 A JP24672084 A JP 24672084A JP S61125710 A JPS61125710 A JP S61125710A
Authority
JP
Japan
Prior art keywords
workpiece
chuck body
chuck
jaw
dustproof cover
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
Application number
JP59246720A
Other languages
Japanese (ja)
Inventor
Hisayuki Komura
久幸 小村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daihatsu Motor Co Ltd
Original Assignee
Daihatsu Motor Co Ltd
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 by Daihatsu Motor Co Ltd filed Critical Daihatsu Motor Co Ltd
Priority to JP59246720A priority Critical patent/JPS61125710A/en
Publication of JPS61125710A publication Critical patent/JPS61125710A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/001Protection against entering of chips or dust
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/16Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
    • B23B31/16233Jaws movement actuated by oblique surfaces of a coaxial control rod
    • B23B31/16262Jaws movement actuated by oblique surfaces of a coaxial control rod with a centre
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042Devices for removing chips
    • B23Q11/005Devices for removing chips by blowing

Abstract

PURPOSE:To prevent dust and cutting oil from entering from outside by covering a chuck body and a master jaw with a dust-proof cover and discharging a work by projecting a knock-out bar retired inside after releasing the work after completion of machining. CONSTITUTION:An outer peripheral face and a front end face of a chuck body 15 are covered by a dust-proof cover 41 and a through hole 42 to which a work strap metal 34 is projected is formed on the center of the front end face, and window holes 43, 43, 43 are are formed along the radial direction on three positions around the hole 42. The cover is put on the outer peripheral face and the front end face of the chuck body 15 and the space between with the work strap metal 34 is sealed by an O-ring 44 fit to the through hole 42 of the cover 41, and the outer peripheral face of the rear portion of the chuck body 15 and the inner peripheral face of the rear portion of the cover 41 are sealed by an O-ring fit there between and window holes 43 are sealed by an elastic material wiper 46. Air is always supplied into a main shaft and the chuck body 15 to raise internal pressure.

Description

【発明の詳細な説明】 産l上立机且光! この発明はワークの加工時に、当該ワークをチャックす
るチャック装置に関するものである。
[Detailed Description of the Invention] Product-based stand-up machine and light! The present invention relates to a chuck device that chucks a workpiece during machining of the workpiece.

皿米生肢血 機械加工においては、加工時、ワークを主軸に設けられ
たチャック装置にてチャックさせ、この状態で主軸にて
チャック装置を回転させてワークを回転させ乍ら加工を
行う場合がある。
During machining, the workpiece is chucked with a chuck device installed on the main spindle, and in this state, the chuck device is rotated on the main spindle to rotate the workpiece while machining is performed. be.

従来のチャック装置は、例えば主軸の前面にチャック本
体を取付け、当該チャック本体の円周方向の2開所若し
くは3個所においてマスタージョーを半径方向にスライ
ド自在に取付け、当該マスタージぢ−の前面にワークを
チャックするためのトップジョーを設けてトップジョー
をチャック本体の前面で移動するようになし、前記マス
タージョーを適宜の手段で、夫々単独或いは連動させて
半径方向に縮径或いは拡径させてワークをチャックした
り或いは解放したりするように構成されており、ワーク
の加工時にトップジョーを縮径させてワークを保持させ
ている。
In a conventional chuck device, for example, a chuck body is attached to the front surface of the main shaft, a master jaw is attached to the chuck body at two or three openings in the circumferential direction so as to be slidable in the radial direction, and a workpiece is attached to the front surface of the master jaw. A top jaw is provided to chuck the workpiece, and the top jaw moves on the front surface of the chuck body, and the master jaw is radially contracted or expanded in diameter by an appropriate means, individually or in conjunction with each other, to chuck the workpiece. The top jaw is configured to chuck or release the workpiece, and the diameter of the top jaw is reduced to hold the workpiece when processing the workpiece.

ベ    し  ゛      口 従来のチャック装置はチャック本体及びチャック本体に
設けられたマスタージョー並びにトップジョーが外部に
露出しているので、チャック本体とマスタージョーとの
摺動部に塵が侵入して噛込みを生じ、マスタージョーの
動きが悪くなったり、また偏摩耗を生じてガタつきを生
じてワークが振れて加工精度が低下するといった問題が
あった。また加工時に水溶性切削液が用いられると、当
該切削液がチャック本体とマスタージョーとの間に侵入
して内部で錆を発生させ、前記と同様、マスタージョー
の動きを悪くしたり、逆にガタつきを生じたりするとい
った問題もあった。さらに近時、作業者の安全のために
、作業者が直接ワークをチャック装置へ持っていってチ
ャックさせたり、或いは取外したりすることが無くなり
つつあり、ワークを自動的に搬入・搬出させる必要があ
り、チャック装置に、ワークの解放時にワークを自動的
に排出させるノックアウト機構を装備させることが要望
されていた。
In conventional chuck devices, the chuck body, the master jaw, and the top jaw provided on the chuck body are exposed to the outside, so dust can enter the sliding part between the chuck body and the master jaw and become stuck. This causes problems such as poor movement of the master jaw, uneven wear, and rattling, which causes the workpiece to shake and reduce machining accuracy. Furthermore, if a water-soluble cutting fluid is used during machining, the cutting fluid will enter between the chuck body and the master jaw and cause rust to occur internally, making the movement of the master jaw worse or vice versa. There were also problems such as rattling. Furthermore, in recent years, for the sake of worker safety, it is no longer necessary for workers to directly take workpieces to the chuck device to chuck or remove them, and it is now necessary to automatically load and unload the workpieces. There is a demand for the chuck device to be equipped with a knockout mechanism that automatically ejects the workpiece when the workpiece is released.

p゛の 主軸台に回転可能に設けられた主軸の前端面にチャック
本体を取付け、当該チャック本体の円周方向数個所に夫
々マスタージョーを半径方向にスライド自在に設けると
共にマスタージョーの前面にワークをチャックするトッ
プジョーを一体に設け、前記主軸及びチャック本体の中
心部に軸方向にスイド可能に設けたドローパー並びにプ
ランジャにて前記マスタージョーを半径方向にスライド
させてワークをチャックさせるようにしたチャック装置
において、チャック本体の外周面及び前端面を防塵カバ
ーにて被覆し、防塵カバーの前端面に窓穴を形成し、当
該窓穴からトップジョーを突出させると共にトップジョ
ーと防塵カバーとの間に弾性材製ワイパーを間在させ、
前記ドローパー及びプランジャの中心部に、先端を円錐
形に形成したノックアウトバーを軸方向にスライド可能
に設け、且つノックアウトバーとプランジャとの間にス
プリングを圧縮闇夜させ、当該スプリングにてノックア
ウトバーの先端を常時防塵カバーから突出させるように
したものである。
A chuck body is attached to the front end surface of a main spindle rotatably provided on the headstock of P, and master jaws are provided at several locations in the circumferential direction of the chuck body so as to be slidable in the radial direction, and the workpiece is attached to the front surface of the master jaw. A chuck is provided with a top jaw that chucks the workpiece, and the workpiece is chucked by sliding the master jaw in the radial direction using a drawper and a plunger that are provided in the center of the main shaft and the chuck body so as to be able to slide in the axial direction. In the device, the outer circumferential surface and front end surface of the chuck body are covered with a dustproof cover, a window hole is formed in the front end surface of the dustproof cover, the top jaw is made to protrude from the window hole, and there is a gap between the top jaw and the dustproof cover. A wiper made of elastic material is interposed,
A knockout bar having a conical tip is provided in the center of the drawper and plunger so as to be slidable in the axial direction, and a spring is compressed between the knockout bar and the plunger, and the tip of the knockout bar is compressed by the spring. is made to protrude from the dustproof cover at all times.

皿 この発明はチャック本体及びマスタージョーを防塵カバ
ーにて被覆して、チャック本体とマスタージョーとの摺
動部へ外部から塵や切削液が侵入しないようにすると共
にワークのチャック時、ワークの搬入と同時にノックア
ウトバーを防塵カバーより内方へ退入させ、加工完了後
ワークを解放するとノックアウトバーをスプリングにて
突出させ、ノックアウトバーにてワークを押出して排出
させるようにしたちのtある。
This invention covers the chuck main body and master jaw with a dustproof cover to prevent dust and cutting fluid from entering from the outside into the sliding part between the chuck main body and master jaw, and also prevents the workpiece from being carried in when chucking the workpiece. At the same time, the knockout bar is moved inward from the dustproof cover, and when the workpiece is released after machining is completed, the knockout bar is protruded by a spring, and the workpiece is pushed out and discharged by the knockout bar.

1)皿 本発明に係るクランプ装置を備えた加工装置は、第3図
に示す様に、ベース(1)の上面後端に主軸台(2)を
設け、主軸台(2)の前方に心神台(3)を設け、前記
主軸台(2)に回転可能に支承された主軸(4)の前端
にチャック装置(5)を取付け、且つ後端にチャック装
置(5)を開閉させるためのシリンダ(6)を取付け、
さらに主軸台(2)と心神台(3)との間にワーク受は
台(7)を直交方向に移動可能に設け、且つ主軸台(2
)と心神台(3)との間の上方に複数の加工工具(8)
を備えた加工ヘッド(9)を上下動可能に設けである。
1) Dishes As shown in FIG. 3, a processing device equipped with a clamping device according to the present invention is provided with a headstock (2) at the rear end of the upper surface of a base (1), and a center shaft in front of the headstock (2). A stand (3) is provided, a chuck device (5) is attached to the front end of the main shaft (4) rotatably supported by the headstock (2), and a cylinder for opening and closing the chuck device (5) at the rear end. Install (6),
Furthermore, a workpiece support is provided between the headstock (2) and the Shinshindai (3) so that the workpiece (7) can be moved in the orthogonal direction, and
) and Shinjindai (3), there are multiple processing tools (8) above.
The processing head (9) is provided so as to be movable up and down.

またベース(1)の後端下部には駆動モータ(10)を
取付けてあり、当該駆動モータ(10)の出力軸(10
a)を電磁クラック(1))及び減速機(12)を介し
て主軸(4)に連結しである。
Further, a drive motor (10) is attached to the lower rear end of the base (1), and an output shaft (10
a) is connected to the main shaft (4) via an electromagnetic crack (1)) and a speed reducer (12).

(13)は主軸(4)を急停止させるディスクブレーキ
である。
(13) is a disc brake that stops the main shaft (4) suddenly.

上記加工装置は、チャック装置(5)から離れた位置に
あるワーク受は台(7)上にワーク(14)を載せ、こ
の後ワーク受は台(7)を移動させてワーク(14)を
主軸台(2)と心神台(3)との間に配置させ、続いて
心神台(3)に進退可能に取付けられたスリーブ(3b
)を進出させてスリーブ(3b)のセンタ(3a)にて
ワーク(14)を後方へ押圧してその後端をチャック装
置(5)内へ挿入させる。この後シリンダ(6)を動作
させてチャック装置(5)にてワーク (14)をチャ
ックさせ、チャック後駆動モータ(10)を動作させて
主軸(4)及びチャック装置(5)を回転させ、これに
よりワーク(14)を回転させ乍ら加工工具(8)を降
下させてワーク(14)の加工を行う、加工完了後、加
工工具(8)を上昇させると共に駆動モータ(10)を
停止させてワーク(14)の回転を停止させ、続いてシ
リンダ(6)を動作させ、チャック装置(5)を開放さ
せてワークを外し、ワーク(14)をワーク受は台(7
)上に載せる。
In the above-mentioned processing device, the workpiece holder located away from the chuck device (5) places the workpiece (14) on the table (7), and then the workpiece holder moves the table (7) to place the workpiece (14) on the table (7). A sleeve (3b
) is advanced and the center (3a) of the sleeve (3b) presses the workpiece (14) backward to insert the rear end into the chuck device (5). Thereafter, the cylinder (6) is operated to chuck the workpiece (14) with the chuck device (5), and the post-chuck drive motor (10) is operated to rotate the main shaft (4) and the chuck device (5). As a result, the workpiece (14) is rotated while the machining tool (8) is lowered to process the workpiece (14).After machining is completed, the machining tool (8) is raised and the drive motor (10) is stopped. to stop the rotation of the workpiece (14), then operate the cylinder (6), open the chuck device (5) to remove the workpiece, and place the workpiece (14) on the workpiece support stand (7).
) on top.

この後ワーク受は台(7)が移動してワーク(14)を
取出して加工を完了する。
After this, the table (7) of the workpiece receiver moves to take out the workpiece (14) and complete the machining.

前記加工装置に設けられているクランプ装置(5)は第
1図及びN42図に示す構造となっている。即ち、主軸
台(2)に設けられた主軸(4)の前端面に円筒形のチ
ャック本体(15)をアダプタ(47)を介して一体に
取付け、当該チャック本体(15)の前端部の円周方向
等配位置の数個所、例えば3個所に半径方向に沿ってス
ライド溝(16)を形成しである。前記スライド溝(1
6)には両側に半径方向に沿って係合溝(17)  (
17)を形成しである。
The clamp device (5) provided in the processing device has a structure shown in FIG. 1 and N42. That is, a cylindrical chuck body (15) is integrally attached to the front end surface of the main shaft (4) provided on the headstock (2) via an adapter (47), and the circular shape of the front end of the chuck body (15) is Slide grooves (16) are formed along the radial direction at several locations, for example, three locations, which are equally spaced in the circumferential direction. The slide groove (1
6) has engagement grooves (17) along the radial direction on both sides (
17) is formed.

(18)はチャック本体(15)の各スライド溝(16
)  (16)−・−・にスライド自在に挿入されたマ
スタージッーで、前端面には全面にセレーション(19
)を刻設し、且つ前端面中央部にT溝(20)を形成し
、さらに下端部両側に係合フランジ(21)を軸方向に
沿って形成しである。またマスタージ!!−(1B)の
両側には半径方向に沿って係合突部(22)  (22
)を形成しである。
(18) indicates each slide groove (16) of the chuck body (15).
) (16) --- The master screw is slidably inserted into the front end surface with serrations (19
), a T-groove (20) is formed in the center of the front end surface, and engagement flanges (21) are formed along the axial direction on both sides of the lower end. Masterji again! ! - Engagement protrusions (22) (22
) is formed.

このマスタージョー(18)はチャック本体(15)に
形成されたスライド溝(16)内にスライド自在に挿入
し、且つ係合突部(22)  (22)を係合in (
17)  (17) ニtl入しテチ+ 7 り本体(
15)に対して前後動を不能にして半径方向に移動可能
にしである。
This master jaw (18) is slidably inserted into a slide groove (16) formed in the chuck body (15), and engages the engaging protrusion (22) in (
17) (17) Nitl + 7 body (
15), it is impossible to move back and forth and is movable in the radial direction.

(23)は各マスタージッー(18)の前端面に取付け
たトップジョーで、後端面にセレーシヨン(24)を刻
設し、且つ下端面にワーク(14)を押圧するための突
部(25)を形成しである。
(23) is a top jaw attached to the front end surface of each master jaw (18), which has a serration (24) carved on the rear end surface and a protrusion (25) for pressing the workpiece (14) on the lower end surface. It is formed.

このトップジョー(14)は後端面のセレーシヨン(2
4)をマスタージッー(18)の前端面のセレーション
(19)に噛み合わせ、マスタージッ−(1B)に形成
されたT?j!(20)に嵌入させたTブロック (2
6)とトップジョー(23)との間にボルト(27)を
締付けることによりマスタージッー(18)に一体に取
付けである。
This top jaw (14) has a serration (2) on the rear end surface.
4) into the serrations (19) on the front end surface of the master jaw (18), and the T? j! (20) T block fitted into (2
It is integrally attached to the master jaw (18) by tightening the bolt (27) between the top jaw (23) and the top jaw (23).

(28)は主軸(4)内に軸方向にスライド自在に挿入
されたドローパーで、後端を主軸(4)を貫通させてシ
リンダ(6)に連結してあり、前端には主軸(4)及び
チャック本体(15)内にスライド自在に挿入された中
空のドローチューブ(29)を結合ポル) (30)に
て結合しである。  (31)はチャック本体(15)
内にスライド自在に挿入され、ドローチューブ(29)
に結合された円筒形のプランジ中で、チャック本体(1
5)に形成されたスライドi (16)と対応させて外
周面の3個所に軸方向に沿って逆Ta(32)  (3
2)・−・を形成し、当該逆T溝(32)(32)・−
・を先端側が中心に近くなるようにテーバに形成しであ
る。このプランジ中(31)の逆T溝(32)  (3
2)−・にはマスタージッー(18)の下端に形成され
た保合フランジ(21)がスライド可能に挿入される。
(28) is a drawer inserted into the main shaft (4) so as to be slidable in the axial direction.The rear end is passed through the main shaft (4) and connected to the cylinder (6), and the front end is connected to the main shaft (4). A hollow draw tube (29) slidably inserted into the chuck body (15) is connected by a connecting pole (30). (31) is the chuck body (15)
The draw tube (29) is slidably inserted into the
The chuck body (1
Inverted Ta (32) (32) (3
2) Form the inverted T grooves (32) (32).
・It is formed into a tapered shape so that the tip side is closer to the center. Inverted T groove (32) in this plunge (31) (3
2) A retaining flange (21) formed at the lower end of the master jig (18) is slidably inserted into.

従ってドローパー(28)がシリンダ(6)にて押し引
きされると、ドローチューブ(29)及びプランジャ(
31)が前後動じてプランジャ(31)の逆Ti (3
2)のテーバによりマスタージッー(18)が半径方向
に移動させられ、これと−緒にトップジョー(23)も
移動してワーク(14)をチャックしたり或いは解放し
たりする。尚、上記実施例では、ワーク(14)の外径
を外側からチャックするようにしたが、ワークの形状に
よっては内側からチャックするようにしてもよい。
Therefore, when the drawper (28) is pushed or pulled by the cylinder (6), the draw tube (29) and the plunger (
31) moves back and forth and the plunger (31) is inverted Ti (3
The master jaw (18) is moved in the radial direction by the taper 2), and the top jaw (23) is also moved together with this to chuck or release the workpiece (14). In the above embodiment, the outer diameter of the workpiece (14) is chucked from the outside, but depending on the shape of the workpiece, it may be chucked from the inside.

(33)はプランジャ(31)内に挿入されたバイロフ
トブッシングで、チャック本体(15)に一体に取付け
てあり、前端中央部にはワーク当て金(34)を一体に
取付けである。
(33) is a biloft bushing inserted into the plunger (31), which is integrally attached to the chuck body (15), and a workpiece pad (34) is integrally attached to the center of the front end.

(35)はパイロットブッシング(33)内に遊嵌され
、パイロットブッシング(33)の後端とワーク当て金
(34)に設けられた軸受(36)(37)にて回転自
在に支持されたノックアウトバーで、先部に係止フラン
ジ(38)を形成し、且つ先端部を円錐形に形成し、さ
らに後端面から中間部外周面に至るまで空気孔(39)
を形成し、当該空気孔(39)の両側の開口部(39a
 )(39b )を夫々後部軸受(37)を挟んでその
前後に配置させてあり、ノックアウトバー(35)の移
動を滑らかに行い得るようにしである。
(35) is a knockout that is loosely fitted into the pilot bushing (33) and is rotatably supported by bearings (36) and (37) provided on the rear end of the pilot bushing (33) and the workpiece pad (34). The bar has a locking flange (38) at its tip, a conical tip, and an air hole (39) extending from the rear end surface to the outer peripheral surface of the middle section.
openings (39a) on both sides of the air hole (39).
) (39b) are placed in front and behind the rear bearing (37), respectively, so that the knockout bar (35) can move smoothly.

(40)はノックアウトバー(35)の係止フラン”(
38)と後部軸受(37)との間に圧縮間在させたスプ
リングで、ノックアウトバー(35)の先端部を常時ワ
ーク当て金(34)より前方へ突出させる。
(40) is the locking flange of the knockout bar (35).
A spring compressed between the knockout bar (38) and the rear bearing (37) causes the tip of the knockout bar (35) to always protrude forward from the workpiece pad (34).

(41)はチャック本体(15)の外周面及び前端面を
被覆する防塵カバーで、前端面中央部にワーク当て金(
34)が突出する貫通孔(42)を形成し、且つ貫通孔
(42)の周囲の円周等配置の3個所に半径方向に沿っ
て窓穴(43)  (43)−・・を形成しである。こ
の防塵カバー(41)はチャック本体(15)の外周面
及び前場面に被せてチャック本体(15)に一体に取付
け、貫通孔(42)からワーク当て金(34)を突出さ
せると共に窓穴(43)からトフブジッ−(23)を突
出させである。  (44)は防塵カバー(41)の貫
通孔(42)に装着したOリングで、ワーク当て金(3
4)との間を密封している。  (45)はチャック本
体(15)の後部外周面と防塵カバー(41)の後部内
周面との間に装着した0リングで、両者間を密封してい
る。  (46)は防塵カバー(41)の前端面とト7
プジg−(23)との間に装着した弾性材製ワイパーで
、トフブジッー(23)の外周を取り囲んで窓穴(43
)を密封している。
(41) is a dustproof cover that covers the outer peripheral surface and front end surface of the chuck body (15), and the workpiece pad (
A through-hole (42) is formed from which the through-hole (42) protrudes, and window holes (43) (43)-- are formed along the radial direction at three locations equally spaced on the circumference around the through-hole (42). It is. This dustproof cover (41) is integrally attached to the chuck body (15) by covering the outer peripheral surface and front surface of the chuck body (15), and allows the workpiece pad (34) to protrude from the through hole (42) and the window hole ( 43) to protrude the tofu bushi (23). (44) is an O-ring attached to the through hole (42) of the dustproof cover (41).
4) It seals the gap between the (45) is an O-ring installed between the rear outer circumferential surface of the chuck body (15) and the rear inner circumferential surface of the dustproof cover (41), sealing the gap between the two. (46) is the front end surface of the dustproof cover (41) and
A wiper made of elastic material attached between the puji g-(23) and the window hole (43) surrounds the outer periphery of the puji g-(23).
) is sealed.

尚、上記実施例ではワーク(14)の両端面には円錐穴
を形成してあり、ノックアウトバー(35)及び心神台
(3)のセンタ(3a)の中心軸とワーク受は台(7)
上に載せられたワーク(14)の中心軸とを上下方向に
僅かに偏心させてあり、ノックアウトバー(35)と心
神台(3)とでワーク(14)を支持すると、ワーク(
14)はワーク受は台(7)から浮き上がるようにしで
ある。
In the above embodiment, conical holes are formed on both end faces of the workpiece (14), and the center axis of the knockout bar (35) and the center (3a) of the Shinshindai (3) and the workpiece holder are connected to the base (7).
The center axis of the workpiece (14) placed on top is slightly eccentric in the vertical direction, and when the workpiece (14) is supported by the knockout bar (35) and the Shinshindai (3), the workpiece (
14) is such that the workpiece holder is raised from the table (7).

また主軸(4)及びチャック本体(15)内には常時高
圧エアーを供給して内部の圧力を高くしである。
Further, high pressure air is constantly supplied into the main shaft (4) and the chuck body (15) to increase the internal pressure.

上記構造のクランプ装置は、ワーク(14)の搬入時、
シリンダ(6)にてドローバ−(28)が前方に押され
、ドローチューブ(29)及びプランジャ(31)が前
進してチャック本体(15)に内蔵されたマスタージョ
ー(18)を半径方向外方へ移動させてトツブジッー(
23)を拡径させておく。この状態でワーク受は台(7
)に支持されたワーク(14)がノックアウトバー(3
5)と心神台(3)との間に搬送されてくると、心神台
(3)のスリーブ(3b)が進出してセンタ(3a)に
てワーク(14)を主軸側へ押圧し、ノックアウトバー
(35)の先端とでワーク(14)を支持し、続いてノ
ックアウトバー(35)をスプリング(40)に抗して
後方へ押込み乍らワーク(14)の後端面をトフブジッ
ー(23)内に挿入してワーク当て金 (34)に押付
ける。この後シリンダ(6)にてドローバ−(28)を
後方へ引込み、ドローチューブ(29)及びプランジャ
(31)を後退させてマスタージョー(18)を半径方
向内方へ移動させてトップジョー(23)を縮径させて
トップジョー(23)にてワーク(14)のtJ[部を
チャックする。ワーク(14)のチャックが完了すると
、主軸(4)が回転させられ、これと一体のチャック本
体(15)が回転してワーク(14)を回転させる。
The clamping device having the above structure, when carrying in the workpiece (14),
The drawbar (28) is pushed forward by the cylinder (6), and the draw tube (29) and plunger (31) move forward to move the master jaw (18) built into the chuck body (15) radially outward. Move it to Totsubuji (
23) is enlarged in diameter. In this state, the workpiece holder is placed on the stand (7
) is supported by the knockout bar (3).
5) and the Shinshindai (3), the sleeve (3b) of the Shinshindai (3) advances and presses the workpiece (14) toward the spindle at the center (3a), knocking it out. Support the workpiece (14) with the tip of the bar (35), and then push the knockout bar (35) backward against the spring (40) while pushing the rear end surface of the workpiece (14) into the tofu bush (23). Insert it into the work piece and press it against the work piece (34). Thereafter, the cylinder (6) pulls the drawbar (28) backward, the draw tube (29) and the plunger (31) retreat, the master jaw (18) moves radially inward, and the top jaw (23) ) is reduced in diameter, and the top jaw (23) chucks the tJ part of the workpiece (14). When the chuck of the workpiece (14) is completed, the main shaft (4) is rotated, and the chuck body (15) integrated therewith rotates, thereby rotating the workpiece (14).

ワーク(14)の加工が完了し、主軸(4)及びチャッ
ク本体(15)の回転が停止すると、シリンダ(6)に
てドローバ−(28)が前方へ押出され、ドローチュー
ブ(29)及びプランジャ(31)が前進してトップジ
ッー(23)を拡径させワーク(14)を解放させる。
When machining of the workpiece (14) is completed and the rotation of the main shaft (4) and chuck body (15) is stopped, the drawbar (28) is pushed forward by the cylinder (6), and the draw tube (29) and plunger (31) moves forward to expand the diameter of the top jaw (23) and release the workpiece (14).

ワーク(14)が解放されると、スプリング(40)の
蓄勢弾力によりノックアウトバー(35)が前進し、同
時にスリーブ(3b)も後退し、ワーク(14)を前方
へ押出し、トフブジョー(23)から排出させてワーク
受は台(7)上に配置させる。そしてノックアウトバー
(35)が前進端に達した後、さらにスリーブ(3b)
が後退すると、ノックアウトバー(35)及びスリーブ
(3b)のセンタ(3a)からワーク(14)は解放さ
れて落下し、ワーク受は台(7)に載り、運び出される
When the workpiece (14) is released, the knockout bar (35) moves forward due to the stored elasticity of the spring (40), and at the same time, the sleeve (3b) also moves back, pushing the workpiece (14) forward and pushing the tofu jaw (23) The workpiece receiver is placed on the stand (7). After the knockout bar (35) reaches the forward end, the sleeve (3b)
When the workpiece (14) retreats, the workpiece (14) is released from the center (3a) of the knockout bar (35) and the sleeve (3b) and falls, and the workpiece receiver is placed on the stand (7) and carried out.

上記チャック装置は、チャック本体(15)及びチャッ
ク本体(15)に設けられたマスタージョー(18)が
防塵カバー(41)にて被覆されて密封されており、且
つ内部はエアーにて内圧が高められているので、ワーク
(14)の加工時に供給される水溶性切削液や塵等がチ
ャック本体(15)とマスタージョー(18)との摺動
部やチャック本体(15)内に侵入することはない。
In the chuck device, the chuck body (15) and the master jaw (18) provided on the chuck body (15) are covered and sealed with a dustproof cover (41), and the internal pressure is increased with air. This prevents water-soluble cutting fluid, dust, etc. supplied during machining of the workpiece (14) from entering the sliding part between the chuck body (15) and master jaw (18) and into the chuck body (15). There isn't.

またワーク(14)の搬出時、ワーク(14)とノック
アウトバー(35)とが密着していても、ノックアウト
バー(35)の先端が円錐形に形成されていることと、
ノックアウトバ−(35)が前進するときの衝撃により
ワーク(14)は確実に離れてワーク受は台(7)上に
載せられる。
Furthermore, even if the workpiece (14) and the knockout bar (35) are in close contact with each other when the workpiece (14) is carried out, the tip of the knockout bar (35) is formed into a conical shape.
The workpiece (14) is reliably separated by the impact when the knockout bar (35) moves forward, and the workpiece receiver is placed on the table (7).

3亙坐立釆 この発明は、防塵カバーにてチャック本体及びマスター
ジョーを被覆したので、チャー7り本体とマスタージョ
ーとの摺動部やチャコ・り本体内に厘や切削時に使用さ
れる水溶性切削液等が内部に侵入することがなく、塵の
噛み込みによるマスタージョーの固縛や偏摩耗によるガ
タつきの発生や、水溶性切削液による内部での情の発生
が防止され、長期に亘って保守が不要になると共にチャ
ック装置のチャック精度も向上する。
This invention covers the chuck main body and master jaw with a dustproof cover, so there is no water-soluble material used in the sliding part between the chuck main body and the master jaw and inside the chuck main body. This prevents water-soluble cutting fluids from entering the interior, prevents the master jaw from becoming stuck due to dust entrapment, rattling due to uneven wear, and preventing internal damage caused by water-soluble cutting fluids. This eliminates the need for maintenance and improves the chucking accuracy of the chucking device.

また、この発明はワークを解放すると、ノックアウトバ
ーにて自動的にワークを排出させることができるので、
ワークの自動搬出が可能となり、作業者”がチャック装
置に近付いて直接ワークを取出す必要がないので、安全
性が非常に高ぐなる。
In addition, this invention allows the workpiece to be automatically ejected using the knockout bar when the workpiece is released.
Automatic unloading of the workpiece becomes possible, and there is no need for the operator to approach the chuck device and directly take out the workpiece, greatly increasing safety.

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

第1図は本発明に係るチャック装置の断面図、第2図は
チャック装置のチャック本体とマスタージョーとの関係
を示す要部破断斜視図、第3図は本発明に係るチャック
装置を備えた加工装置の一例を示す正面図である。 (5m−−・チャック装置、 (15)・・・チャック
本体、(16)・・・スライド溝、(18)・−マスタ
ージョー、 (23)−・−トンプジぢ−、(28)・
−ドローバ−1(31)−プランジャ、(33) −・
パイロットブッシング、(35)−・ノックアウトバー
、(40)・・〜スプリング、(41)・−防塵カバー
、(43)・・−窓穴。
FIG. 1 is a sectional view of a chuck device according to the present invention, FIG. 2 is a cutaway perspective view of essential parts showing the relationship between the chuck body and the master jaw of the chuck device, and FIG. 3 is a cross-sectional view of a chuck device according to the present invention. It is a front view showing an example of a processing device. (5m--Chuck device, (15)...Chuck body, (16)...Slide groove, (18)--Master jaw, (23)--Tump position, (28)-
- Drawbar - 1 (31) - Plunger, (33) -
Pilot bushing, (35) Knockout bar, (40) Spring, (41) Dust cover, (43) Window hole.

Claims (1)

【特許請求の範囲】[Claims] (1)主軸台に回転可能に設けられた主軸の前端面にチ
ャック本体を取付け、当該チャック本体の円周方向数個
所に夫々マスタージョーを半径方向にスライド自在に設
けると共にマスタージョーの前面にワークをチャックす
るトップジョーを一体に設け、前記主軸及びチャック本
体の中心部に軸方向にスライド可能に設けたドローバー
並びにプランジャにて前記マスタージョーを半径方向に
スライドさせてワークをチャックするようにしたチャッ
ク装置において、チャック本体の外周面及び前端面を防
塵カバーにて被覆し、防塵カバーの前端面に窓穴を形成
し、当該窓穴からトップジョーを突出させると共にトッ
プジョーと防塵カバーとの間に弾性材製ワイパーを間在
させ、前記ドローバー及びプランジャの中心部に、先端
を円錐形に形成したノックアウトバーを軸方向にスライ
ド可能に設け、且つノックアウトバーとプランジャとの
間にスプリングを圧縮間在させ、当該スプリングにてノ
ックアウトバーの先端を常時防塵カバーから突出させる
ようにしたことを特徴とするチャック装置。
(1) The chuck body is attached to the front end surface of the spindle rotatably installed on the headstock, and master jaws are provided at several locations in the circumferential direction of the chuck body so as to be slidable in the radial direction, and the workpiece is attached to the front surface of the master jaw. A chuck is provided with a top jaw that chucks a workpiece, and chucks a workpiece by sliding the master jaw in the radial direction using a drawbar and a plunger that are provided in the center of the main shaft and the chuck body so as to be slidable in the axial direction. In the device, the outer circumferential surface and front end surface of the chuck body are covered with a dustproof cover, a window hole is formed in the front end surface of the dustproof cover, the top jaw is made to protrude from the window hole, and there is a gap between the top jaw and the dustproof cover. A wiper made of an elastic material is interposed, a knockout bar having a conical tip is provided in the center of the drawbar and the plunger so as to be slidable in the axial direction, and a spring is compressed between the knockout bar and the plunger. A chuck device characterized in that the tip of the knockout bar is always projected from the dustproof cover by the spring.
JP59246720A 1984-11-21 1984-11-21 Chuck device Pending JPS61125710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59246720A JPS61125710A (en) 1984-11-21 1984-11-21 Chuck device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59246720A JPS61125710A (en) 1984-11-21 1984-11-21 Chuck device

Publications (1)

Publication Number Publication Date
JPS61125710A true JPS61125710A (en) 1986-06-13

Family

ID=17152641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59246720A Pending JPS61125710A (en) 1984-11-21 1984-11-21 Chuck device

Country Status (1)

Country Link
JP (1) JPS61125710A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0657507U (en) * 1993-01-19 1994-08-09 松本機械工業株式会社 Chuck grease oil splash prevention device
JPH0679367U (en) * 1993-04-26 1994-11-08 理研プラスチックス工業株式会社 Insulation container
WO1999041032A1 (en) * 1998-02-11 1999-08-19 The Goss & Deleeuw Machine Company Sealed chuck assembly
CN106181563A (en) * 2016-08-29 2016-12-07 安徽昊方机电股份有限公司 A kind of chip removal device for belt wheel processing
CN109311100A (en) * 2016-11-15 2019-02-05 有限会社新沙泰克 Shade assembly, chuck mechanism and the lathe of the cover of anti-cutting powder and dust, anti-cutting powder and dust
CN109848732A (en) * 2019-03-06 2019-06-07 泉州台商投资区捷赢网络科技有限公司 It is a kind of based on it is dust-proof with reinforce one circular shaft Clamping and self-locking device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0657507U (en) * 1993-01-19 1994-08-09 松本機械工業株式会社 Chuck grease oil splash prevention device
JPH0679367U (en) * 1993-04-26 1994-11-08 理研プラスチックス工業株式会社 Insulation container
WO1999041032A1 (en) * 1998-02-11 1999-08-19 The Goss & Deleeuw Machine Company Sealed chuck assembly
US6073940A (en) * 1998-02-11 2000-06-13 The Goss & Deleeuw Machine Company Sealed chuck assembly
CN106181563A (en) * 2016-08-29 2016-12-07 安徽昊方机电股份有限公司 A kind of chip removal device for belt wheel processing
CN109311100A (en) * 2016-11-15 2019-02-05 有限会社新沙泰克 Shade assembly, chuck mechanism and the lathe of the cover of anti-cutting powder and dust, anti-cutting powder and dust
CN109848732A (en) * 2019-03-06 2019-06-07 泉州台商投资区捷赢网络科技有限公司 It is a kind of based on it is dust-proof with reinforce one circular shaft Clamping and self-locking device

Similar Documents

Publication Publication Date Title
JPS605404B2 (en) Powerful chuck that rotates workpieces such as bevel gears and pinions.
US10226845B2 (en) Machine tool
US3735994A (en) Work holding chuck and arbor
GB1232475A (en)
JPH11504575A (en) Spindle advance screw with actuator for drawbar
JPH0227081B2 (en)
JPS61125710A (en) Chuck device
US4787785A (en) Machine tool with a spindle head
US4141263A (en) Device for the centered clamping of annular workpieces
JP7075638B1 (en) Machine tools equipped with spindle devices and spindle devices
US6149357A (en) Apparatus for securing workholding equipment to a machine tool
US5069094A (en) Tube end finishing machine
JP2001179512A (en) Working device for inner diameter of and both end faces of cylindrical work, and chuck for grasping cylindrical work
JP4309988B2 (en) Machine tool headstock and shaft workpiece work method
JP4690231B2 (en) Manufacturing method of shaft workpiece
JPH045244Y2 (en)
KR920004454B1 (en) Chuck
JP2831814B2 (en) Tool chuck
US3564969A (en) Quick tool-change headstock
CN217889531U (en) Chuck repairing tool, chuck repairing system and lathe
CN212885060U (en) Hydraulic lathe retainer pushes away material ring
JP7295600B1 (en) Spindles, machine tools equipped with spindles and balancing machines
JPH0214890Y2 (en)
JPH0525801Y2 (en)
JPH0521284Y2 (en)