JP2000084710A - Outside diameter centering type chuck - Google Patents
Outside diameter centering type chuckInfo
- Publication number
- JP2000084710A JP2000084710A JP10263626A JP26362698A JP2000084710A JP 2000084710 A JP2000084710 A JP 2000084710A JP 10263626 A JP10263626 A JP 10263626A JP 26362698 A JP26362698 A JP 26362698A JP 2000084710 A JP2000084710 A JP 2000084710A
- Authority
- JP
- Japan
- Prior art keywords
- centering
- chuck
- outer diameter
- cylindrical worm
- claw
- 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
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/12—Centering of two components relative to one another
Landscapes
- Gripping On Spindles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は外径芯出式チャック
に係わり、特に芯出が容易でワークを芯出状態にセット
できる外径芯出式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 relates to an outer diameter centering type chuck, and more particularly to an outer diameter centering type chuck which can easily center and set a work in an aligned state.
【０００２】[0002]
【従来の技術】従来セラミックスパイプのように焼結し
て製造されるものは偏肉になりやすく、この偏肉パイプ
を加工して真円パイプにするには、旋盤等により切削す
る必要がある。2. Description of the Related Art Conventionally, a ceramic pipe manufactured by sintering tends to be uneven in thickness, and in order to process this uneven thickness pipe into a perfect circular pipe, it is necessary to cut it with a lathe or the like. .
【０００３】この偏肉パイプをパイプの外径を基準にし
て外径を切削する場合、従来は個々にねじにより進退す
る芯出爪を有するインディペンデントチャックを用い、
偏肉パイプの内周面を芯出爪で保持しながら芯出しを行
い、しかる後チャックを行っていた。[0003] In the case of cutting the outside diameter of this uneven thickness pipe based on the outside diameter of the pipe, conventionally, an independent chuck having a centering claw individually advanced and retracted by a screw is used.
Centering was performed while holding the inner peripheral surface of the uneven thickness pipe with a centering claw, and then chucking was performed.
【０００４】[0004]
【発明が解決しようとする課題】このようにして偏肉パ
イプのチャックの芯出を行っていたが、その作業は工数
が多く困難な作業であり、多くの時間を要する等の問題
があった。The centering of the chuck of the uneven thickness pipe has been performed in this manner, but the operation is difficult and requires a lot of time. .
【０００５】本発明は上述した事情を考慮してなされた
もので、種々の外径の偏肉パイプに対しても外径を基準
の芯出しが容易な外径芯出式チャックを提供することを
目的とする。The present invention has been made in view of the above-mentioned circumstances, and provides an outer diameter centering chuck which can easily center the outer diameter of uneven thickness pipes of various outer diameters. With the goal.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
になされた本願請求項１の発明は、回転軸に設けられた
チャック本体と、このチャック本体に設けられた芯出ア
ーム作動機構と、この芯出アーム作動機構に一端が取り
付けられ他端が求心的に動いてワークの外周面に当接す
る複数個の芯出アームと、前記芯出アーム作動機構を駆
動させる駆動手段と、前記チャック本体に進退自在に設
けられワークの内周面に当接する押さえ爪と、この押さ
え爪を進退させる押さえ爪調整機構とを有することを特
徴とする外径芯出式チャックであることを要旨としてい
る。Means for Solving the Problems In order to achieve the above object, the invention of claim 1 of the present application provides a chuck body provided on a rotating shaft, a centering arm operating mechanism provided on the chuck body, A plurality of centering arms having one end attached to the centering arm operating mechanism and the other end moving centripetalally to contact the outer peripheral surface of the work; driving means for driving the centering arm operating mechanism; and the chuck body An outer diameter centering type chuck having a pressing claw provided so as to be able to move forward and backward and abutting against an inner peripheral surface of a work, and a pressing claw adjusting mechanism for moving the pressing claw forward and backward.
【０００７】本願請求項２の発明では上記芯出アーム作
動機構はウォームギアであることを特徴とする請求項１
に記載の外径芯出式チャックであることを要旨としてい
る。According to the second aspect of the present invention, the centering arm operating mechanism is a worm gear.
The gist is an outer diameter centering type chuck described in (1).
【０００８】本願請求項３の発明では上記芯出アーム作
動機構は円筒ウォームギアであり、この円筒ウォームギ
アの複数個の円筒ウォームホイールには各々芯出アーム
が取り付けられたことを特徴とする請求項１または２に
記載の外径芯出式チャックであることを要旨としてい
る。In the invention according to claim 3 of the present invention, the centering arm operating mechanism is a cylindrical worm gear, and a centering arm is attached to each of the plurality of cylindrical worm wheels of the cylindrical worm gear. Or the outer diameter centering type chuck described in 2.
【０００９】本願請求項４の発明では上記芯出アームは
３個であり、この３個の芯出アームは各々中心角度が１
２０度の間隔を有して円筒ウォームギアの３個の円筒ウ
ォームホイールに各々求心的に取り付けられたことを特
徴とする請求項２または３に記載の外径芯出式チャック
であることを要旨としている。In the invention of claim 4 of the present application, the number of the centering arms is three, and each of the three centering arms has a center angle of one.
The outer diameter centering chuck according to claim 2 or 3, wherein the chuck is centrifugally attached to each of three cylindrical worm wheels of the cylindrical worm gear with an interval of 20 degrees. I have.
【００１０】本願請求項５の発明では上記円筒ウォーム
ホイールは１／３ピッチづつずれているか、または上記
円筒ウォームは１／３ピッチづつずれた３条のねじ山を
有することを特徴とする請求項４に記載の外径芯出式チ
ャックであることを要旨としている。According to a fifth aspect of the present invention, the cylindrical worm wheel is shifted by 1/3 pitch, or the cylindrical worm has three threads shifted by 1/3 pitch. The chuck is an outer diameter centering type chuck described in 4.
【００１１】本願請求項６の発明では上記芯出アームは
円筒ウォームホイールの回動により円弧状に出退自在に
設けられたことを特徴とする請求項３ないし５のいずれ
か１項に記載の外径芯出式チャックであることを要旨と
している。According to the invention of claim 6 of the present application, the centering arm is provided so as to be able to move back and forth in an arc shape by rotation of a cylindrical worm wheel. The gist of the invention is that it is an outer diameter centering type chuck.
【００１２】本願請求項７の発明では上記駆動手段はハ
ンドルであり、上記押さえ爪の進退させる押さえ爪調整
機構は調整ねじであることを特徴とする請求項１ないし
６のいずれか１項に記載の外径芯出式チャックであるこ
とを要旨としている。The invention according to claim 7 of the present application, wherein the driving means is a handle, and the pressing claw adjusting mechanism for moving the pressing claw forward and backward is an adjusting screw. The gist of the present invention is that the outer diameter centering type chuck is used.
【００１３】本願請求項８の発明では上記芯出アームの
外周用爪部および押さえ爪の内周用爪部を合成樹脂にし
たことを特徴とする請求項１ないし７のいずれか１項に
記載の外径芯出式チャックであることを要旨としてい
る。The invention according to claim 8 of the present invention, wherein the outer peripheral claw portion of the centering arm and the inner peripheral claw portion of the holding claw are made of synthetic resin. The gist of the present invention is that the outer diameter centering type chuck is used.
【００１４】[0014]
【発明の実施の形態】以下、本発明に係わる外径芯出式
チャックの実施の形態について添付図面を参照して説明
する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an outer diameter centering type chuck according to the present invention will be described below with reference to the accompanying drawings.
【００１５】図１は例えば円筒状セラミックパイプのよ
うなワークＷをチャックした外径芯出式チャック１の縦
断面図である。この外径芯出式チャック１は、工作機械
例えば旋盤の主軸２と、この旋盤の主軸２に設けられた
チャック本体３と、このチャック本体３の本体軸部材４
に軸支され芯出アーム５を動かす芯出アーム作動機構、
例えば円筒ウォーム６と円筒ウォームホイール７で構成
される円筒ウォームギア８と、この円筒ウォームギア８
の円筒ウォームホイール７に取り付けられた複数個の上
記芯出アーム５と、円筒ウォーム６に設けられこの円筒
ウォーム６を駆動させる駆動手段例えばハンドル９と、
チャック本体３に進退自在に設けられワークＷの内周面
Ｗｉに当接する押さえ爪１０と、この押さえ爪１０を進
退させる押さえ爪調整機構例えば調整ねじ１１を有して
いる。FIG. 1 is a longitudinal sectional view of an outer diameter centering type chuck 1 which chucks a work W such as a cylindrical ceramic pipe. The outer diameter centering type chuck 1 includes a main shaft 2 of a machine tool such as a lathe, a chuck body 3 provided on the main shaft 2 of the lathe, and a main body shaft member 4 of the chuck main body 3.
Centering arm operating mechanism that moves the centering arm 5 by being supported by
For example, a cylindrical worm gear 8 composed of a cylindrical worm 6 and a cylindrical worm wheel 7, and the cylindrical worm gear 8
A plurality of centering arms 5 attached to the cylindrical worm wheel 7; a driving means provided on the cylindrical worm 6 for driving the cylindrical worm 6, for example, a handle 9;
The chuck body 3 includes a holding claw 10 that is provided to be able to move forward and backward and comes into contact with the inner peripheral surface Wi of the work W, and a holding claw adjusting mechanism that moves the holding claw 10 forward and backward, for example, an adjusting screw 11.
【００１６】円筒ウォームギア８はチャック本体３の本
体軸部材４に軸支された円筒ウォーム６とチャック本体
３に軸支された円筒ウォームホイール７とを噛合させて
円筒ウォームギア８を構成している。The cylindrical worm gear 8 is configured by meshing a cylindrical worm 6 supported by the main body shaft member 4 of the chuck body 3 and a cylindrical worm wheel 7 supported by the chuck body 3.
【００１７】上記チャック本体３は、旋盤の主軸２に取
り付けられた面板１２に設けられた円盤形状の本体後面
部材１３と、この本体後面部材１３の中心から面板１２
とは反対側に延伸する円柱形状の本体軸部材４と、この
本体軸部材４に取り付けられた本体前面部材１４と、こ
の本体前面部材１４に取り付けられギア収納部１５が設
けられた本体中央部材１６とで形成されている。The chuck body 3 has a disk-shaped body rear member 13 provided on a face plate 12 attached to the main spindle 2 of a lathe, and a center plate of the body rear member 13 from the center of the body rear member 13.
A main body shaft member 4 extending in the opposite direction to the main body, a main body front member 14 attached to the main body shaft member 4, and a main body center member attached to the main body front member 14 and provided with a gear housing 15. 16 are formed.
【００１８】図２に示すように本体前面部材１４は正面
視形状がほぼ正三角形でその各頂点部には押え爪１０お
よび調整ねじ１１が収納される調整用溝部１７が図１お
よび図３に示すようにワークＷの中心点（線）に向かう
ように求心的に設けられ、さらに正三角形の各辺部中央
には円筒ウォームホイール７の一部が回動可能な間隙を
有して収納されるホイール収納溝部１８が設けられてい
る。As shown in FIG. 2, the main body front member 14 has a substantially equilateral triangle shape when viewed from the front, and has an adjusting groove 17 for accommodating the pressing claw 10 and the adjusting screw 11 at each apex thereof in FIGS. As shown, it is provided centripetally toward the center point (line) of the workpiece W, and a part of the cylindrical worm wheel 7 is accommodated in the center of each side of the equilateral triangle with a rotatable gap. A wheel storage groove 18 is provided.
【００１９】本体中央部材１６は中央部に本体軸部材４
と円筒ウォームホイール７を収納する上記ギア収納部材
１４を有する扁平有底円筒形状であり、さらに上記本体
前面部材１４のホイール８と芯出アーム５を収納するア
ーム収納溝部１９が設けられている。The main body center member 16 has a main body shaft member 4 at the center.
It has a flat bottomed cylindrical shape having the gear housing member 14 for housing the cylindrical worm wheel 7 and an arm housing groove 19 for housing the wheel 8 of the main body front member 14 and the centering arm 5.
【００２０】上記円筒ウォーム６はボールベアリング２
０を介して本体軸部材４に軸支されおり、円筒ウォーム
６の一端部２１にはハンドル９が取り付けられている。
このハンドル９は外径芯出式チャック１の回転面に平行
な面に沿って複数個例えば等角度間隔で６個配設されて
おり、ハンドル９と本体後面部材１３間にはすべり軸受
２２が介在している。The cylindrical worm 6 is a ball bearing 2
The handle 9 is attached to the main body shaft member 4 through the shaft 0 and is attached to one end 21 of the cylindrical worm 6.
A plurality of, for example, six handles 9 are provided at equal angular intervals along a plane parallel to the rotation surface of the outer diameter centering type chuck 1, and a slide bearing 22 is provided between the handle 9 and the main body rear surface member 13. Intervening.
【００２１】また、図４に示すように円筒ウォーム６に
は外径芯出式チャック１の回転面に平行な面に沿って等
中心角度例えば１２０度の間隔で配設された複数個例え
ば３個の円筒ウォームホイール７が噛合し、この３個の
円筒ウォームホイール７は各々１／３ピッチずれた螺子
部を有しており、本体中央部材１６に軸支されている。As shown in FIG. 4, the cylindrical worm 6 has a plurality of, for example, 3 arranged at an equal center angle, for example, 120 degrees along a plane parallel to the rotation surface of the outer diameter centering type chuck 1. The three cylindrical worm wheels 7 mesh with each other. The three cylindrical worm wheels 7 each have a screw portion shifted by ３ pitch, and are supported by the center member 16 of the main body.
【００２２】なお、３個の円筒ウォームホイール７の各
々ピッチを１／３づつずらすかわりに、円筒ウォーム６
に１／３ピッチを有する３条のねじ山を設けてもよい。
３個の円筒ウォームホイール７には各々側面視形状がほ
ぼへ字状の上記芯出アーム５が取り付けられており、こ
の取り付けは円筒ウォームホイール７の取付切欠部２３
に一端２４を螺着することで行われている。Instead of shifting the pitch of each of the three cylindrical worm wheels 7 by 1/3, the cylindrical worm 6
May be provided with three threads having a 1/3 pitch.
Each of the three cylindrical worm wheels 7 is provided with the centering arm 5 having a substantially elliptical shape when viewed from the side. The mounting arm 5 is attached to a mounting notch 23 of the cylindrical worm wheel 7.
This is done by screwing one end 24 to the end.
【００２３】３個の芯出アーム５は１２０度間隔で各々
３個の円筒ウォームホイール７取り付けられているの
で、図３に示すように円筒ウォームホイール７の回動に
伴って、求心的すなわちワークＷの中心点（線）Ｗｃに
向かって円弧状に動き、他端２５がワーク外周Ｗｏに当
接し、ワークＷを保持する。なお、他端２５にはワーク
Ｗの保持時、ワークＷに作用する力の緩衝のために合成
樹脂製の外面用爪部２６が取り付けられている。Since the three centering arms 5 are mounted on the three cylindrical worm wheels 7 at intervals of 120 degrees, as shown in FIG. It moves in an arc toward the center point (line) Wc of W, and the other end 25 abuts on the outer periphery Wo of the work to hold the work W. An external claw 26 made of a synthetic resin is attached to the other end 25 for buffering a force acting on the work W when the work W is held.
【００２４】従って、ハンドル９を外径芯出式チャック
１の回転面に平行な面に沿って正面視時計回り方向に回
動させると、円筒ウォーム６は本体軸部材４のまわりを
回転し、円筒ウォーム６の回転により円筒ウォームホイ
ール７は側面視時計回り方向に回動して、各々の芯出ア
ーム５は求心的に円弧状の動きをするようになってい
る。Accordingly, when the handle 9 is rotated clockwise in a front view along a plane parallel to the rotation plane of the outer diameter centering type chuck 1, the cylindrical worm 6 rotates around the main body shaft member 4, The rotation of the cylindrical worm 6 causes the cylindrical worm wheel 7 to rotate clockwise in a side view, so that each centering arm 5 moves centripetally in an arc shape.
【００２５】また、図１および図５に示すように前記チ
ャック本体３の本体前面部材１４には、主軸２の方向で
前面に突出しワーク内周面Ｗｉに当接する押さえ爪１０
が本体前面部材１４に沿って摺動自在に取り付けられて
いる。この押さえ爪１０は金属製で断面が逆Ｌ字形状を
なし、その一部が合成樹脂で形成された内面爪部２７の
外面部２８でワーク内周面Ｗｉに当接してワークＷを保
持し、垂直なフランジ押さえ部２９でワークフランジ外
面Ｗｆに当接してワークＷを支持するようになってい
る。As shown in FIGS. 1 and 5, the main body front member 14 of the chuck main body 3 has a holding claw 10 projecting to the front surface in the direction of the main shaft 2 and abutting against the inner peripheral surface Wi of the work.
Are slidably mounted along the main body front member 14. The holding claw 10 is made of metal and has an inverted L-shaped cross section. A part of the holding claw 10 abuts on the inner circumferential surface Wi of the work at the outer surface 28 of the inner claw 27 made of synthetic resin to hold the work W. The work W is supported by contacting the work flange outer surface Wf with a vertical flange holding portion 29.
【００２６】押さえ爪１０の本体前面部材１４への摺動
自在な取り付けは、調整用溝部１７に収納された押さえ
爪１０の螺子部３０に螺合した調整ねじ１１を回転可能
に軸支し収納することにより行い、図１に示すようにワ
ークＷからワークＷ2 のようにワークの内径に応じ、こ
の調整ねじ１１を回動させることにより調整用溝部１７
に沿って押さえ爪１０を求心的または遠心的に進退させ
ることができる。The holding pawl 10 is slidably attached to the main body front member 14 by rotatably supporting the adjusting screw 11 screwed to the screw portion 30 of the holding pawl 10 housed in the adjusting groove 17. As shown in FIG. 1, the adjusting screw 11 is rotated in accordance with the inner diameter of the work from the work W to the work W2 as shown in FIG.
The centrifugal force or the centrifugal force of the pressing claw 10 can be moved back and forth along the axis.
【００２７】なお、３１はワークＷの他端Ｗt を回転自
在に保持し進退自在でかつ主軸２線上に設けられた支持
機構であり、３２は適宜開口部が設けられたケーシング
である。Reference numeral 31 denotes a support mechanism which rotatably holds the other end Wt of the workpiece W and is capable of moving forward and backward, and is provided on the main shaft 2 line. Reference numeral 32 denotes a casing provided with an appropriate opening.
【００２８】次に、上述した本発明に係わる外径芯出式
チャック１を用いたワークＷの芯出しとチャックについ
て説明する。Next, centering and chucking of the work W using the outer diameter centering type chuck 1 according to the present invention will be described.
【００２９】最初に図２に示すような調整ねじ１１を回
動させ押さえ爪１０を調整用溝部１７に沿って求心的に
摺動させ、図３に示すように各内面押さえ爪１０の外面
部２７をワーク内周面Ｗｉより内側に位置させる。次に
図１に示すようにワークＷの一端Ｗs を押さえ爪１０の
外面部２８で支持させ、ワークＷの他端Ｗt を支持機構
３１で支持し、さらに支持機構３１を前進させてワーク
フランジ外面Ｗｆを押さえ爪１０のフランジ押さえ部２
９に当接させる。First, the adjusting screw 11 as shown in FIG. 2 is rotated, and the holding claw 10 is centrifugally slid along the adjusting groove 17, and as shown in FIG. 3, the outer surface of each inner holding claw 10 is formed. 27 is located inside the inner circumferential surface Wi of the work. Next, as shown in FIG. 1, one end Ws of the work W is supported by the outer surface 28 of the holding claw 10, the other end Wt of the work W is supported by the support mechanism 31, and the support mechanism 31 is further advanced to move the outer surface of the work flange. Flange holding part 2 of claw 10 holding Wf
9
【００３０】さらにハンドル９を回動させて円筒ウォー
ム６、円筒ウォームホイール７を介して各芯出アーム５
を同期させて円筒ウォームホイール７の回転中心廻りに
円弧状かつ求心的に動かし、図３に示すように芯出アー
ム５の外面用爪部２６をワーク外周面Ｗo に当接させ
る。このときこの３個の円筒ウォームホイール７は各々
１／３ピッチずれた螺子部を有しているので、３個の外
面用爪部２６は同時にワーク外周面Ｗo に当接するの
で、ワークＷは外面基準の芯出しが行われる。Further, by rotating the handle 9, each centering arm 5 is moved through the cylindrical worm 6 and the cylindrical worm wheel 7.
In a circular arc and centripetally around the rotation center of the cylindrical worm wheel 7 to bring the outer surface claw portion 26 of the centering arm 5 into contact with the outer peripheral surface Wo of the work as shown in FIG. At this time, since the three cylindrical worm wheels 7 each have a screw portion shifted by 1/3 pitch, the three outer claw portions 26 simultaneously contact the outer peripheral surface Wo of the work, so that the work W is formed on the outer surface. Reference centering is performed.
【００３１】また、外面用爪部２６は合成樹脂製である
ので、ワークＷに作用する力は緩衝され外面用爪部２６
によるワーク外周面Ｗo の当接保持によりワークＷが損
傷させたり、汚損させたりすることがない。Further, since the outer claw portion 26 is made of synthetic resin, the force acting on the work W is buffered and the outer claw portion 26 is formed.
The work W is not damaged or soiled by the contact and holding of the work outer peripheral surface Wo.
【００３２】さらに芯出アーム５でワークＷを保持した
状態、すなわちワークＷが外面基準で芯出しが行われた
状態で、図３に示すように調整ねじ１１を回動させて調
整用溝部１７に沿って押さえ爪１０を遠心的に後退させ
内面押さえ部２７の外面部２８をワーク内周面Ｗｉに当
接させワークＷを保持する。Further, in a state where the work W is held by the centering arm 5, that is, when the work W is centered on the basis of the outer surface, the adjusting screw 11 is rotated as shown in FIG. The holding claw 10 is retreated centrifugally along the outer surface 28 of the inner holding member 27 to abut the inner circumferential surface Wi of the work to hold the work W.
【００３３】この場合にも上述と同様に内面爪部２７が
合成樹脂製であるので、ワークＷを損傷させたり、汚損
させたりすることがない。In this case as well, since the inner claw portion 27 is made of a synthetic resin as described above, the work W is not damaged or soiled.
【００３４】さらにハンドル９を上記回動とは逆に回動
させて、芯出アーム５を上記とは逆の円弧状に動かし、
芯出アーム５によるワークＷの保持を解放し、さらに芯
出アーム５を待機位置に戻す。Further, by turning the handle 9 in the opposite direction to the above, the centering arm 5 is moved in an arc shape opposite to the above.
The holding of the work W by the centering arm 5 is released, and the centering arm 5 is returned to the standby position.
【００３５】ワークＷは押さえ爪１０の外面部２８とフ
ランジ押さえ部２９および支持機構３１によりワークＷ
が外面基準で芯出しが行われた状態でチャックさせる。The work W is held by the outer surface 28 of the holding claw 10, the flange holding portion 29 and the support mechanism 31.
Is chucked in a state where centering is performed on the basis of the outer surface.
【００３６】上述のようにワークＷの外面基準で芯出し
とチャックを同時かつ容易に行うことができる。As described above, centering and chucking can be performed simultaneously and easily with reference to the outer surface of the work W.
【００３７】しかるのち、ワークＷの旋盤のバイトによ
りワークＷの外周面Ｗｏを所定の外径に切削し、所定外
径のワークＷを得ることができる。Thereafter, the outer peripheral surface Wo of the work W is cut to a predetermined outer diameter by a turning tool of the work W, and the work W having a predetermined outer diameter can be obtained.
【００３８】[0038]
【発明の効果】以上の説明で明らかなとおり、本発明に
係わる外径芯出式チャックによれば、外径の偏肉パイプ
に対しても外径を基準の芯出しが容易でかつチャックを
同時に行うことができ、芯出し時間が短縮可能な外径芯
出式チャックを提供できる。As is clear from the above description, according to the outer diameter centering type chuck according to the present invention, centering based on the outer diameter is easy and the chuck can be used even for an uneven diameter pipe having an outer diameter. It is possible to provide an outer diameter centering type chuck which can be performed simultaneously and can shorten the centering time.
【００３９】また、芯出アーム作動機構をウォームギア
にしたので、構造が簡単で精度の高い外径芯出しが可能
である。Further, since the centering arm operating mechanism is a worm gear, the outer diameter can be centered with a simple structure and high accuracy.
【００４０】さらに、芯出アームをウォームギアの円筒
ウォームホイールに取り付けたので、芯出アームを容易
に求心的動作させることができ精度のよい外径芯出しが
可能である。Further, since the centering arm is attached to the cylindrical worm wheel of the worm gear, the centering arm can be easily operated in a centripetal manner, and accurate centering of the outer diameter is possible.
【００４１】３個の円筒ウォームホイールと１個の円筒
ウォームにより３個の芯出アームを個求心的に配設した
ので、簡単な構造でワークの外径基準の芯出しが容易に
行うことができる。Since three centering arms are centripetically arranged by three cylindrical worm wheels and one cylindrical worm, centering based on the outer diameter of the work can be easily performed with a simple structure. it can.
【００４２】円筒ウォームホイールは１／３ピッチづつ
ずれているか、または上記円筒ウォームは１／３ピッチ
づつずれた３条のねじ山を有するので、３個の芯出アー
ムにより極めて精度よくワークの外径基準の芯出しがで
きる。The cylindrical worm wheel is shifted by 1/3 pitch or the cylindrical worm has three threads shifted by 1/3 pitch. Centering based on diameter is possible.
【００４３】芯出アームを円筒ウォームホイールの回動
により円弧状に出退自在に設けたので、広範な外径のワ
ークに対しても適切に外径基準の芯出しができる。Since the centering arm is provided so as to be able to move back and forth in an arc shape by the rotation of the cylindrical worm wheel, centering on the basis of the outside diameter can be appropriately performed even for a work having a wide outside diameter.
【００４４】円筒ウォームギアの駆動手段としてハンド
ルを用い、押さえ爪の押さえ爪調整機構はねじとしたの
で、簡単で耐久性のある外径芯出式チャックを提供する
ことができる。Since the handle is used as the driving means of the cylindrical worm gear and the holding claw adjusting mechanism of the holding claw is a screw, a simple and durable outer diameter centering type chuck can be provided.
【００４５】外周面用爪部および内周面用爪部を合成樹
脂製にしたので、ワークに作用する力を緩衝し爪部によ
るワーク外周面、内周面の当接保持によりワークを損
傷、破損させることがない。Since the claw portion for the outer peripheral surface and the claw portion for the inner peripheral surface are made of synthetic resin, the force acting on the work is buffered, and the work is damaged by the abutment of the claw portion on the outer peripheral surface and the inner peripheral surface of the work. No damage.
【図１】本発明の一実施の形態を示す外径芯出式チャッ
クの図２のＡ−Ａ線に沿う縦断面図。FIG. 1 is a longitudinal sectional view of an outer diameter centering type chuck showing an embodiment of the present invention, taken along line AA of FIG. 2;
【図２】本発明の一実施の形態を示す外径芯出式チャッ
クの正面図。FIG. 2 is a front view of an outer diameter centering type chuck showing an embodiment of the present invention.
【図３】本発明の一実施の形態を示す外径芯出式チャッ
クがワークをチャックした状態を示す説明図。FIG. 3 is an explanatory view showing a state in which a workpiece is chucked by an outer diameter centering type chuck according to the embodiment of the present invention.
【図４】本発明の一実施の形態を示す外径芯出式チャッ
クの芯出アーム作動機構の説明図。FIG. 4 is an explanatory view of a centering arm operating mechanism of an outer diameter centering type chuck showing an embodiment of the present invention.
【図５】本発明の一実施の形態を示す外径芯出式チャッ
クの押さえ爪の斜視図。FIG. 5 is a perspective view of a holding claw of an outer diameter centering type chuck showing an embodiment of the present invention.
１ 外径芯出式チャック ２ 旋盤の主軸 ３ チャック本体 ４ 本体軸部材 ５ 芯出アーム ６ 円筒ウォーム ７ 円筒ウォームホイール ８ 芯出アーム作動機構（円筒ウォームギア） ９ 駆動手段（ハンドル） １０ 押さえ爪 １１ 押さえ爪調整機構（調整ねじ） １２ 面板 １３ 本体後面部材 １４ 本体前面部材 １５ ギア収納部 １６ 本体中央部材 １７ 調整用溝部 １８ ホイール収納溝部 １９ アーム収納溝部 ２０ ボールベアリング ２１ 一端部 ２２ すべり軸受 ２３ 取付切欠部 ２４ 一端 ２５ 他端 ２６ 外面用爪部 ２７ 内面用爪部 ２８ 外面部 ２９ フランジ押さえ部 ３０ 螺子部 ３１ 支持機構 ３２ ケーシング Ｗ ワーク DESCRIPTION OF SYMBOLS 1 Outer diameter centering type chuck 2 Main shaft of lathe 3 Chuck body 4 Main body shaft member 5 Centering arm 6 Cylindrical worm 7 Cylindrical worm wheel 8 Centering arm operating mechanism (cylindrical worm gear) 9 Driving means (handle) 10 Holding claw 11 Holding Claw adjustment mechanism (adjustment screw) 12 Face plate 13 Main body rear member 14 Main body front member 15 Gear storage section 16 Main body central member 17 Adjustment groove section 18 Wheel storage groove section 19 Arm storage groove section 20 Ball bearing 21 One end section 22 Slide bearing 23 Mounting cutout section Reference numeral 24 One end 25 Other end 26 Outer claw portion 27 Inner claw portion 28 Outer surface portion 29 Flange holding portion 30 Screw portion 31 Support mechanism 32 Casing W Work
───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐々木 道雄 愛知県刈谷市小垣江町南藤１番地 東芝セ ラミックス株式会社刈谷製造所内 Ｆターム(参考） 3C032 GG05 GG07 GG09 HH15 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Michio Sasaki 1 Minamifuji, Ogakie-cho, Kariya-shi, Aichi F-term in Toshiba Ceramics Co., Ltd. Kariya Works 3C032 GG05 GG07 GG09 HH15
Claims (8)
のチャック本体に設けられた芯出アーム作動機構と、こ
の芯出アーム作動機構に一端が取り付けられ他端が求心
的に動いてワークの外周面に当接する複数個の芯出アー
ムと、前記芯出アーム作動機構を駆動させる駆動手段
と、前記チャック本体に進退自在に設けられワークの内
周面に当接する押さえ爪と、この押さえ爪を進退させる
押さえ爪調整機構とを有することを特徴とする外径芯出
式チャック。1. A chuck body provided on a rotating shaft, a centering arm operating mechanism provided on the chuck body, one end of which is attached to the centering arm operating mechanism and the other end of which moves centripetalally to move a workpiece. A plurality of centering arms in contact with the outer peripheral surface, a driving means for driving the centering arm operating mechanism, a pressing claw provided on the chuck body so as to be able to advance and retreat, and a pressing claw in contact with the inner peripheral surface of the work; An outer diameter centering type chuck having a holding claw adjusting mechanism for moving the chuck forward and backward.
であることを特徴とする請求項１に記載の外径芯出式チ
ャック。2. The outer diameter centering chuck according to claim 1, wherein the centering arm operating mechanism is a worm gear.
ギアであり、この円筒ウォームギアの複数個の円筒ウォ
ームホイールには各々芯出アームが取り付けられたこと
を特徴とする請求項１または２に記載の外径芯出式チャ
ック。3. The centering arm operating mechanism is a cylindrical worm gear, and a centering arm is attached to each of a plurality of cylindrical worm wheels of the cylindrical worm gear. Outer diameter centering type chuck.
の芯出アームは各々中心角度が１２０度の間隔を有して
円筒ウォームギアの３個の円筒ウォームホイールに各々
求心的に取り付けられたことを特徴とする請求項２また
は３に記載の外径芯出式チャック。4. The centering arms are three in number, and each of the three centering arms is centrifugally mounted on three cylindrical worm wheels of a cylindrical worm gear with a center angle of 120 degrees. The outer diameter centering type chuck according to claim 2 or 3, wherein the outer diameter centering type chuck is provided.
チづつずれているか、または上記円筒ウォームは１／３
ピッチづつずれた３条のねじ山を有することを特徴とす
る請求項４に記載の外径芯出式チャック。5. The cylindrical worm wheel is offset by 1/3 pitch, or the cylindrical worm is shifted by 1/3.
The outer diameter centering type chuck according to claim 4, wherein the outer diameter centering chuck has three threads which are shifted by a pitch.
の回動により円弧状に出退自在に設けられたことを特徴
とする請求項３ないし５のいずれか１項に記載の外径芯
出式チャック。6. An outer diameter centering type according to claim 3, wherein said centering arm is provided so as to be able to move back and forth in an arc shape by rotation of a cylindrical worm wheel. Chuck.
さえ爪の進退させる押さえ爪調整機構は調整ねじである
ことを特徴とする請求項１ないし６のいずれか１項に記
載の外径芯出式チャック。7. The outer diameter centering device according to claim 1, wherein the driving means is a handle, and the pressing claw adjusting mechanism for moving the pressing claw forward and backward is an adjusting screw. Type chuck.
え爪の内周用爪部を合成樹脂にしたことを特徴とする請
求項１ないし７のいずれか１項に記載の外径芯出式チャ
ック。8. The outer diameter centering device according to claim 1, wherein the outer circumferential claw portion of the centering arm and the inner circumferential claw portion of the holding claw are made of synthetic resin. Type chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10263626A JP2000084710A (en) | 1998-09-17 | 1998-09-17 | Outside diameter centering type chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10263626A JP2000084710A (en) | 1998-09-17 | 1998-09-17 | Outside diameter centering type chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000084710A true JP2000084710A (en) | 2000-03-28 |
Family
ID=17392140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10263626A Pending JP2000084710A (en) | 1998-09-17 | 1998-09-17 | Outside diameter centering type chuck |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000084710A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007143976A2 (en) * | 2006-06-14 | 2007-12-21 | Josef Steinberger | Clamping means for a chip-removing machine |
| CN113634779A (en) * | 2021-09-02 | 2021-11-12 | 淮阴工学院 | Adjustable clamping jaw for axial surface positioning |
-
1998
- 1998-09-17 JP JP10263626A patent/JP2000084710A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007143976A2 (en) * | 2006-06-14 | 2007-12-21 | Josef Steinberger | Clamping means for a chip-removing machine |
| WO2007143976A3 (en) * | 2006-06-14 | 2008-08-07 | Josef Steinberger | Clamping means for a chip-removing machine |
| CN113634779A (en) * | 2021-09-02 | 2021-11-12 | 淮阴工学院 | Adjustable clamping jaw for axial surface positioning |
| CN113634779B (en) * | 2021-09-02 | 2022-05-27 | 淮阴工学院 | Adjustable clamping jaw for axial surface positioning |
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