JPH0731209U - Jaw piece mounting device for lathe chuck - Google Patents
Jaw piece mounting device for lathe chuckInfo
- Publication number
- JPH0731209U JPH0731209U JP6265693U JP6265693U JPH0731209U JP H0731209 U JPH0731209 U JP H0731209U JP 6265693 U JP6265693 U JP 6265693U JP 6265693 U JP6265693 U JP 6265693U JP H0731209 U JPH0731209 U JP H0731209U
- Authority
- JP
- Japan
- Prior art keywords
- jaw
- jaw piece
- piece
- base
- chuck
- 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
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Abstract
(57)【要約】
【目的】 旋盤のチャック爪を構成するベースジョウ
に、ジョウピースをワンタッチで着脱できるようにす
る。
【構成】 旋盤のチャック本体１０に取付けたチャック
爪１４のベースジョウ１５の前部に、ジョウピース１６
の後面の係合部２７に係脱する出没自在の係止爪２１を
設ける。ベースジョウ１５には上記係止爪２１を突出状
態に保持するばね２５を設け、同ベースジョウ１５の前
部には、ワーク把握時のジョウピース１６の反力を受け
る反力受け部２４を設ける。ジョウピース１６の前部に
進退自在に装着した押ボタン３０の内端の押圧部材３１
を前記ジョウピース１６の係合部２７内に臨ませる。
(57) [Summary] [Purpose] The jaw piece can be attached / detached to / from the base jaw which constitutes the chuck claw of the lathe with one touch. [Structure] A jaw piece 16 is attached to a front portion of a base jaw 15 of a chuck claw 14 attached to a chuck body 10 of a lathe.
An engaging / disengaging locking claw 21 that engages / disengages with the engaging portion 27 on the rear surface is provided. The base jaw 15 is provided with a spring 25 for holding the locking claw 21 in a protruding state, and the front portion of the base jaw 15 is provided with a reaction force receiving portion 24 for receiving a reaction force of the jaw piece 16 when grasping a work. . The push member 31 at the inner end of the push button 30 mounted on the front part of the jaw piece 16 so as to move back and forth.
To face the inside of the engaging portion 27 of the jaw piece 16.
Description
【０００１】[0001]
この考案はワークの内周面または外周面を複数のチャック爪により把握して、 同ワークの所要部を旋削する場合に用いる旋盤用チャックに関するものである。 The present invention relates to a lathe chuck used when grasping an inner peripheral surface or an outer peripheral surface of a work with a plurality of chuck claws and turning a required portion of the work.
【０００２】[0002]
旋盤のチャックでワークの所要部を切削する場合は、チャック本体の前面に設 けたベースジョウとジョウピースからなる複数のチャック爪でワークの内径また は外形を把握する場合が多い。 上記のようにチャック本体の前面のワークをチャック爪で把握する場合、形状 や寸法の異なる多種類のワークに対し、ジョウピースを取替える必要が生じる。 When cutting a required part of a work with a chuck of a lathe, it is often the case that the inner diameter or the outer shape of the work is grasped by a plurality of chuck claws that are formed on the front surface of the chuck body and consist of a base jaw and a jaw piece. When grasping the work on the front surface of the chuck body with the chuck claws as described above, it becomes necessary to replace the jaw piece for many kinds of works having different shapes and dimensions.
【０００３】 図４（Ｉ）、（II）はその各例を示すもので、図４（Ｉ）の例ではベースジョ ウ１の先端の凹所３の奥にねじ孔４を設け、ジョウピース２の正面から後方に向 けて設けた挿通孔５にキャップスクリュー６を挿通し、このキャップスクリュー ６をねじ孔４にねじ込んで固定している。FIGS. 4 (I) and (II) show respective examples thereof. In the example of FIG. 4 (I), a screw hole 4 is provided in the recess 3 at the tip of the base jaw 1, and a jaw piece 2 is provided. The cap screw 6 is inserted through the insertion hole 5 provided from the front to the rear, and the cap screw 6 is screwed into the screw hole 4 to be fixed.
【０００４】 また、図４（II）の例ではベースジョウ１の背部から凹所３へ向けて挿通孔７ を設け、この挿通孔７に挿通したキャップスクリュー６をジョウピース２のねじ 孔９にねじ込んで固定している。Further, in the example of FIG. 4 (II), an insertion hole 7 is provided from the back portion of the base jaw 1 toward the recess 3, and the cap screw 6 inserted into the insertion hole 7 is inserted into the screw hole 9 of the jaw piece 2. It is screwed in and fixed.
【０００５】[0005]
上記の各従来例は何れもジョウピース２の交換に際してキャップスクリュー６ を取外さなければならないのできわめて面倒であり、このキャップスクリュー６ を紛失するおそれもある。 In each of the above-mentioned conventional examples, the cap screw 6 must be removed when the jaw piece 2 is replaced, which is very troublesome, and there is a risk that the cap screw 6 will be lost.
【０００６】 この考案の課題は上記のような従来技術の問題点を解決するために、キャップ スクリューを用いることなく、ワンタッチで、簡単にジョウピースを取替えるこ とができるジョウピース取付装置を提供することである。In order to solve the above-mentioned problems of the prior art, the object of the present invention is to provide a jaw piece attaching device which can easily replace the jaw piece with one touch without using a cap screw. That is.
【０００７】[0007]
上記の課題を解決するため、この考案はベースジョウの前面に、上記ジョウピ ースの後面の係合部に係脱する出没自在の係止爪を設けるとともに、この係止爪 を突出状態に保持するばねを設け、同ベースジョウの前部には、ワーク把握時の ジョウピースの反力を受ける反力受け部を設け、ジョウピースの前部に進退自在 に装着した押ボタンの内端の押圧部を前記ジョウピースの係合部に臨ませた構成 を採用した。 In order to solve the above problems, the present invention provides a retractable locking claw that engages and disengages with the engaging portion on the rear surface of the jaw piece on the front surface of the base jaw, and holds the locking claw in a protruding state. A spring is installed to support the reaction force of the jaw piece when grasping the work piece at the front part of the base jaw, and the inner end of the push button that is attached to the front part of the jaw piece to move back and forth is pressed. The structure is adopted in which the part faces the engaging part of the jaw piece.
【０００８】[0008]
この考案は上記の構成であり、ジョウピースをベースジョウに装着するには、 ジョウピースをワーク把握側からベースジョウの前面に当てがって、反力受け部 の方向に滑らせると、ジョウピースの端部が係止爪をベースジョウ内に押し込み ながら反力受け部まで移動し、この反力受け部に当ると同時にベースジョウの係 止爪がばねにより飛び出し、ジョウピースの係合部を係止して抜け止めとなる。 This invention has the above-mentioned structure. To attach the jaw piece to the base jaw, apply the jaw piece to the front side of the base jaw from the work grasping side and slide it toward the reaction force receiving part. End of the base moves to the reaction force receiving part while pushing the locking claw into the base jaw, and at the same time as hitting this reaction force receiving part, the locking claw of the base jaw pops out by the spring, engaging the engagement part of the jaw piece. Stop to prevent it from coming off.
【０００９】 上記のようにベースジョウに取付けられたジョウピースを外す場合は、ジョウ ピースの前面に突出している押ボタンを押す。 このように押ボタンを押すと、その内端の押圧部が係止爪をばねに抗して押込 むのでジョウピースの係止爪が係合部から離脱する。この状態でジョウピースを 反力受け部と反対の方向に滑らしてベースジョウから外すことができる。When removing the jaw piece attached to the base jaw as described above, the push button protruding on the front surface of the jaw piece is pushed. When the push button is pressed in this manner, the pressing portion at the inner end pushes the locking claw against the spring, so that the locking claw of the jaw piece is disengaged from the engaging portion. In this state, you can slide the jaw piece in the direction opposite to the reaction force receiving part and remove it from the base jaw.
【００１０】[0010]
図１ないし図３に示す実施例において、１０は旋盤のヘッドストックに設けた 主軸（図示省略）の前端に固定した中空のチャック本体である。 上記本体１０は主軸の前端に固定したフランジ１１に後面板１２とともに、ボ ルト１３により一体に固定したものである。 In the embodiment shown in FIGS. 1 to 3, 10 is a hollow chuck body fixed to the front end of a main shaft (not shown) provided on the headstock of a lathe. The main body 10 is integrally fixed to the flange 11 fixed to the front end of the main shaft by the bolt 13 together with the rear face plate 12.
【００１１】 １４は複数のチャック爪で、ベースジョウ１５の前部にジョウピース１６を着 脱自在に固定したものである。Reference numeral 14 denotes a plurality of chuck claws, and a jaw piece 16 is detachably fixed to the front portion of the base jaw 15.
【００１２】 上記ベースジョウ１５は、本体１０の前部に、それぞれ軸１７により揺動自在 に装着した複数の揺動片１９の先端にボルト２０により固定したものである。The base jaw 15 is fixed to the front end of the main body 10 with bolts 20 at the tips of a plurality of swing pieces 19 each swingably mounted by a shaft 17.
【００１３】 このベースジョウ１５の前面から後方に貫通せしめたボルト挿通孔兼用の取付 孔に係止爪２１を進退自在に装着し、この爪２１の側面の軸方向の溝２２にはベ ースジョウ１５の側面からねじ込んだ回止めねじ２３の内端を係合させる。A locking claw 21 is attached to a mounting hole that also serves as a bolt insertion hole penetrating rearward from the front surface of the base jaw 15 so as to be able to move forward and backward, and a base jaw 15 is attached to an axial groove 22 on a side surface of the claw 21. The inner end of the set screw 23 screwed in from the side surface of is engaged.
【００１４】 上記係止爪２１の後端と上記ボルト２０の間にはばね２５を装着して係止爪２ １の先端が常にベースジョウ１５の前面から突出しているようにし、同ベースジ ョウ１５の前面外寄りに反力受け部２４を一体に設ける。 前記ジョウピース１６は先端に超硬チップ２６を設けたもので、その後面には 前記係止爪２１に係合する凹孔状の係合部２７を設ける。A spring 25 is mounted between the rear end of the locking claw 21 and the bolt 20 so that the tip of the locking claw 21 always projects from the front surface of the base jaw 15. A reaction force receiving portion 24 is integrally provided on the outer side of the front surface of 15. The jaw piece 16 is provided with a carbide tip 26 at its tip, and a recessed hole-shaped engaging portion 27 for engaging with the locking claw 21 is provided on the rear surface thereof.
【００１５】 ジョウピース１６の前面から適宜の深さに形成した凹孔２９には押ボタン３０ を進退自在に装着する。この押ボタン３０の後部の小径部を凹孔２９と係合部２ ７を通じる細い孔に進退自在に挿入し、この小径部の後端に大径の押圧部材３１ を一体にねじ止めする。A push button 30 is mounted in a recessed hole 29 formed at an appropriate depth from the front surface of the jaw piece 16 so as to be movable back and forth. A small-diameter portion of the rear portion of the push button 30 is inserted into a thin hole passing through the recessed hole 29 and the engaging portion 27 so as to be able to move forward and backward, and a large-diameter pressing member 31 is integrally screwed to the rear end of the small-diameter portion.
【００１６】 図１の３２は後面板１２の中央の孔に進退自在に装着した進退筒で、この進退 筒３２の外周には前記揺動片１９に対応する位置にそれぞれ支持部３３を設け、 この各支持部３３に設けた球形の内面を有する孔には、図２のように球形の外周 面を有する回動体３４を自由に回転するようにはめこみ、この回動体３４に設け た偏心傾斜孔に前記揺動片１９の後部軸３５を摺動自在に挿入して進退筒３２の 進退運動で各ベースジョウ１５が開閉する構造とする。Reference numeral 32 in FIG. 1 denotes an advancing / retreating tube mounted in a central hole of the rear plate 12 so as to be able to advance and retreat. An eccentric inclined hole provided in the rotating body 34 is fitted into the hole having the spherical inner surface provided in each of the supporting portions 33 so as to freely rotate the rotating body 34 having the spherical outer peripheral surface as shown in FIG. The rear shaft 35 of the rocking piece 19 is slidably inserted into the base jaw 15 and the base jaws 15 are opened / closed by the forward / backward movement of the forward / backward movement cylinder 32.
【００１７】 また、上記各後部軸３５の後端に凹孔３８を設け、ここにはめた押圧子３６を ばね３７により後面板１２の前面に圧着させる。 上記進退筒３２の後端には中空軸３９を連結し、この中空軸３９を旋盤のヘッ ドストックの主軸内に遊嵌してヘッドストック後端の油圧シリンダのピストンロ ッドに連結する。Further, a concave hole 38 is provided at the rear end of each rear shaft 35, and a pressing element 36 fitted therein is pressed against the front surface of the rear plate 12 by a spring 37. A hollow shaft 39 is connected to the rear end of the advancing / retreating cylinder 32, and the hollow shaft 39 is loosely fitted in the main shaft of the head stock of the lathe and connected to the piston rod of the hydraulic cylinder at the rear end of the head stock.
【００１８】 図示例はワーク４０の外径を把握する場合を示すもので、この場合、ジョウピ ース１６を受ける反力受け部２４はその前端がチャックの回転軸芯の方向に寄る ように傾斜させ、係止爪２１の前面の傾斜面ａはその外寄りが前方に出るように 傾斜させ、ジョウピース１６の外側面は反力受け部２４の斜面に適合するように 傾斜している。 その他、図中４１はワーク４０の後面を受ける複数の支持部４２を有するワー クストッパで複数のボルトにより本体１０の前面に固定してある。The illustrated example shows the case of grasping the outer diameter of the work 40. In this case, the reaction force receiving portion 24 that receives the jaw piece 16 is inclined so that its front end is closer to the direction of the rotation axis of the chuck. The slanting surface a of the front surface of the locking claw 21 is slanted so that its outer side is projected forward, and the outer side surface of the jaw piece 16 is slanted so as to match the slant surface of the reaction force receiving portion 24. In addition, reference numeral 41 in the figure is a work stopper having a plurality of supporting portions 42 for receiving the rear surface of the work 40, and is fixed to the front surface of the main body 10 by a plurality of bolts.
【００１９】 図はワーク４０を把握している状態を示すもので、このときジョウピース１６ の係合部２７に係止爪２１が係合し、同ピース１６の外側面が反力受け部２４で 受けられている。The figure shows a state in which the workpiece 40 is grasped. At this time, the engaging claw 21 is engaged with the engaging portion 27 of the jaw piece 16, and the outer side surface of the piece 16 is the reaction force receiving portion 24. Have been received at.
【００２０】 従って、中空軸３９を図１の矢印方向に後退させて各揺動片１９の後部軸３５ に外方への力を作用させて各チャック爪１４を内側へ動かし、各超硬チップ２６ でワーク４０の外周を把握したときの反力は反力受け部２４で受けられる。Therefore, the hollow shaft 39 is retracted in the direction of the arrow in FIG. 1, and an outward force is applied to the rear shaft 35 of each rocking piece 19 to move each chuck claw 14 inward, and each carbide tip. The reaction force when the outer circumference of the work 40 is grasped by 26 is received by the reaction force receiving portion 24.
【００２１】 また、中空軸３９を前進させて、ワーク４０の把握を解除したときも、係止爪 ２１と反力受け部２４がジョウピース１６をベースジョウ１５に結合しているの でジョウピース１６がベースジョウ１５から自然に外れることはない。Even when the hollow shaft 39 is moved forward to release the grasp of the work 40, the jaws 16 and the reaction force receiving portion 24 connect the jaw piece 16 to the base jaw 15. 16 will not come off the base jaw 15 naturally.
【００２２】 ジョウピース１６をベースジョウ１５から外す場合は、押ボタン３０を押し込 むと、その内端の押圧部材３１が係止爪２１をばね２５に抗して後退させ、ジョ ウピース１６の係合部２７から外すので、ジョウピース１６を図２の矢印方向に 引くと簡単に外せる。When detaching the jaw piece 16 from the base jaw 15, when the push button 30 is pushed in, the pressing member 31 at the inner end of the jaw piece 16 retracts the locking claw 21 against the spring 25, and the engagement of the jaw piece 16 is stopped. Since it is removed from the joint 27, the jaw piece 16 can be easily removed by pulling it in the direction of the arrow in FIG.
【００２３】 また、ジョウピース１６の装着は、同ピース１６をチャックの中心の側からベ ースジョウ１５の前面に当てがって、反力受け部２４の方に滑らせると、ジョウ ピース１６の端部が傾斜面ａに接触して係止爪２１をベースジョウ１５内に押し 込みながら反力受け部２４まで移動し、ピース１６が反力受け部２４に当ると同 時にベースジョウ１５の係止爪２１がジョウピース１６の係合部２７を係止して 抜け止めとなる。In addition, the jaw piece 16 is mounted by applying the piece 16 from the center side of the chuck to the front surface of the base jaw 15 and sliding it toward the reaction force receiving portion 24. The part contacts the inclined surface a, moves the reaction force receiving part 24 while pushing the locking claw 21 into the base jaw 15, and when the piece 16 hits the reaction force receiving part 24, the base jaw 15 is locked at the same time. The claw 21 locks the engaging portion 27 of the jaw piece 16 to prevent it from coming off.
【００２４】 なお、上記各実施例はワーク４０の外側をチャック爪１４により把握してワー ク４０の前面や内周などに旋削加工を施す場合について述べたが、ワークを内側 から把握してワークの外周などを加工する場合は、各チャック爪１４のベースジ ョウ１５とジョウピース１６の位置や作用方向を内外逆にすればよい。In each of the above-described embodiments, the case where the outside of the work 40 is grasped by the chuck claws 14 and the turning process is performed on the front surface or the inner circumference of the work 40 has been described. When processing the outer circumference of the chuck claw 14 and the like, the positions and operating directions of the base jaws 15 and the jaw pieces 16 of each chuck claw 14 may be reversed inward and outward.
【００２５】 また、チャック爪の開閉方式は実施例以外の任意の方式となし得る。Further, the method of opening and closing the chuck claws may be any method other than the embodiment.
【００２６】[0026]
この考案はジョウベースへのジョウピースの着脱がねじを用いることなくワン タッチで行えるので、ジョウピースの交換がきわめて簡単かつ迅速に行える。 In this device, the jaw piece can be attached to and detached from the jaw base with one touch without using screws, so that the exchange of the jaw piece can be performed very easily and quickly.
【００２７】 また、ジョウピースはベースジョウに設けた係止爪とジョウピースの係合部の 係合と、ベースジョウの反力受け部とジョウピース端部の係合によりジョウベー スに固定されるので着脱が簡単であるにもかかわらず、結合は強固である。The jaw piece is fixed to the jaw base by the engagement of the engaging claw provided on the base jaw and the engagement portion of the jaw piece, and the engagement of the reaction force receiving portion of the base jaw and the end portion of the jaw piece. Therefore, the connection is strong even though it is easy to put on and take off.
【図１】実施例の一部縦断側面図FIG. 1 is a partial vertical sectional side view of an embodiment.
【図２】同上要部の拡大縦断側面図FIG. 2 is an enlarged vertical side view of the main part of the same as above.
【図３】実施例の正面図FIG. 3 is a front view of the embodiment.
【図４】二種の従来例を示す縦断側面図FIG. 4 is a vertical sectional side view showing two conventional examples.
１０ チャック本体 １４ チャック爪 １５ ベースジョウ １６ ジョウピース ２１ 係止爪 ２４ 反力受け部 ２５ ばね ２７ 係合部 ３０ 押ボタン ３１ 押圧部材 10 chuck body 14 chuck claw 15 base jaw 16 jaw piece 21 locking claw 24 reaction force receiving portion 25 spring 27 engagement portion 30 push button 31 push member
Claims (1)
より開閉される複数のベースジョウと、このベースジョ
ウの先端部に着脱自在に取付けたジョウピースからなる
複数のチャック爪を有する旋盤チャックにおいて、上記
ベースジョウの前面に、上記ジョウピースの後面の係合
部に係脱する出没自在の係止爪を設けるとともに、この
係止爪を突出状態に保持するばねを設け、同ベースジョ
ウの前部には、ワーク把握時のジョウピースの反力を受
ける反力受け部を設け、ジョウピースの前部に進退自在
に装着した押ボタンの内端の押圧部を前記ジョウピース
の係合部に臨ませた旋盤チャック用ジョウピース取付装
置。1. A lathe chuck having a plurality of base jaws which are opened and closed by an appropriate driving means on the front surface of the chuck body, and a plurality of chuck claws which are detachably attached to the tip of the base jaws. On the front surface of the base jaw, a retractable locking claw that engages with and disengages from the rear surface of the jaw piece is provided, and a spring that holds the locking claw in a protruding state is provided. Is provided with a reaction force receiving portion that receives the reaction force of the jaw piece when grasping the work, and the pressing portion at the inner end of the push button mounted on the front portion of the jaw piece so as to move forward and backward faces the engagement portion of the jaw piece. A jaw piece mounting device for a lathe chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6265693U JPH0731209U (en) | 1993-11-22 | 1993-11-22 | Jaw piece mounting device for lathe chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6265693U JPH0731209U (en) | 1993-11-22 | 1993-11-22 | Jaw piece mounting device for lathe chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0731209U true JPH0731209U (en) | 1995-06-13 |
Family
ID=13206580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6265693U Pending JPH0731209U (en) | 1993-11-22 | 1993-11-22 | Jaw piece mounting device for lathe chuck |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0731209U (en) |
-
1993
- 1993-11-22 JP JP6265693U patent/JPH0731209U/en active Pending
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