JP2003175431A - Hydraulic double-clamp fixture and grip vice for a plurality of workpieces - Google Patents
Hydraulic double-clamp fixture and grip vice for a plurality of workpiecesInfo
- Publication number
- JP2003175431A JP2003175431A JP2001377681A JP2001377681A JP2003175431A JP 2003175431 A JP2003175431 A JP 2003175431A JP 2001377681 A JP2001377681 A JP 2001377681A JP 2001377681 A JP2001377681 A JP 2001377681A JP 2003175431 A JP2003175431 A JP 2003175431A
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- Prior art keywords
- fixed
- cylindrical
- hole
- pair
- center member
- Prior art date
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、工作機械のテー
ブル上に多数のワークを固定して同時加工する際のワー
ク固定具として特に好適なクランプ治具に関するもの
で、両側に可動口金を備えた両クランプ治具及び当該両
クランプ治具を用いて複数のワークを把持するバイスに
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp jig particularly suitable as a work fixture when a large number of works are fixed on a table of a machine tool and simultaneously processed, and provided with movable mouthpieces on both sides. The present invention relates to both clamp jigs and a vise for holding a plurality of works using both clamp jigs.
【０００２】[0002]
【従来の技術】マシニングセンタなどで同一形状の比較
的小さいワークを多数加工するときは、テーブル上に複
数のワークを固定して同時加工するのが効率的である。
複数のワークを固定する手段として、テーブル上に固定
したワークバイスの固定口金と可動口金の間に複数個の
スペーサブロックを配置し、このスペーサブロックと両
口金の間及びスペーサブロック相互の間に挿入したワー
クを可動口金の進出によって一括して固定するという手
段が広く利用されている。2. Description of the Related Art When machining a large number of relatively small workpieces of the same shape in a machining center or the like, it is effective to fix a plurality of workpieces on a table and simultaneously machine them.
As a means to fix multiple workpieces, place multiple spacer blocks between the fixed mouthpiece and the movable mouthpiece of the work vise fixed on the table, and insert between these spacer blocks and both mouthpieces and between the spacer blocks. A method of collectively fixing the work pieces by advancing a movable mouthpiece is widely used.
【０００３】しかしこのような固定手段は、クランプ方
向に寸法のばらつきのあるワークの正確な位置に加工を
行いたいというときに用いることができない。それは、
ワークバイスの固定口金から離れた位置に固定されたワ
ークは、それより固定口金側にあるワークの寸法誤差の
集積により、クランプ位置に大きな誤差が生じてしまう
からである。特にワークが細長く、その幅寸法に長手方
向の誤差（うねり）があるような場合には、固定口金か
ら離れた位置にクランプされたワークは、当該ワークの
加工基準面の真直度も保証することができない。However, such a fixing means cannot be used when it is desired to perform processing on an accurate position of a work having dimensional variations in the clamping direction. that is,
This is because a work fixed to a position apart from the fixed mouthpiece of the work vise causes a large error in the clamp position due to the accumulation of dimensional errors of the work on the fixed mouthpiece side. Especially when the work is slender and there is a longitudinal error (waviness) in the width dimension, the work clamped at a position away from the fixed mouthpiece also guarantees the straightness of the machining reference surface of the work. I can't.
【０００４】そこでこのようなワークを加工する場合に
は、幅広い固定口金と複数の可動口金とを備えたバイス
をテーブルに固定し、可動口金をその背後に設けた複数
のねじ装置で固定口金側に進出させてワークを１本ずつ
固定するということが行われている。特にワークが液晶
パネルの枠部材や航空機部品のような軽量化を必要とす
るアルミ製品の場合には、クランプ力でワークが容易に
変形して加工基準面が曲がってしまう。正確な位置に加
工を行うためには、幅広い固定口金の把持面の複数箇所
にワークを押接して固定することが必要であり、従っ
て、上記のような方法でワークの固定が行われていたの
である。Therefore, when processing such a work, a vise having a wide fixed mouthpiece and a plurality of movable mouthpieces is fixed to a table, and the movable mouthpiece is fixed by a plurality of screw devices provided behind it. It is carried out to move to and fix the works one by one. Particularly when the work is an aluminum product such as a frame member of a liquid crystal panel or an aircraft part that needs to be lightweight, the work is easily deformed by the clamping force and the machining reference surface is bent. In order to perform processing at an accurate position, it is necessary to press and fix the work at multiple points on the holding surface of a wide fixing die, and therefore the work was fixed by the above method. Of.
【０００５】[0005]
【発明が解決しようとする課題】しかし、上述のような
バイスを用いてテーブルにワークを１個ずつ固定して加
工を行うのは、極めて非能率的である。テーブルに複数
のバイスを固定することにより、複数個のワークの同時
加工が可能であるが、テーブル上でバイスが占めるスペ
ースが大きくなり、しかも可動口金の進退操作のための
スペースも必要とするので、ワークの取付個数をあまり
多くできない。特にワークが細長い場合には、テーブル
の大きな工作機械を使用する必要があるにもかかわら
ず、当該テーブル面を有効に利用することができず、高
価な機械で能率の悪い加工を余儀なくされるという問題
があった。However, it is extremely inefficient to carry out machining by fixing the works one by one to the table using the vice as described above. By fixing multiple vices to the table, it is possible to process multiple workpieces at the same time, but the space occupied by the vices on the table becomes large, and moreover, the space for moving the movable mouthpiece back and forth is also required. However, the number of workpieces attached cannot be increased too much. Especially when the work is long and slender, it is necessary to use a machine tool with a large table, but the table surface cannot be used effectively, and inefficient machining is inevitable with an expensive machine. There was a problem.
【０００６】そこでこの発明は、工作機械のテーブルに
多数のワークを同時に固定可能にするためのコンパクト
で、従ってテーブル面をワークのために有効に利用する
ことができ、固定した個々のワークの加工基準も正確に
設定することが可能で、従って加工精度の厳しい細長い
アルミ製ワークの加工にも好適で、ワークの着脱も速や
かに行うことができるワークバイスを得ること、及び当
該バイスに用いるクランプ治具を得ることを課題として
いる。Therefore, the present invention is compact so that a large number of works can be fixed to the table of the machine tool at the same time, and therefore the table surface can be effectively used for the works, and the fixed individual works can be machined. The standard can also be set accurately, so it is suitable for processing long and slender aluminum workpieces with severe machining accuracy, and it is possible to obtain a work vise that can quickly attach and detach the work, and the clamp cure used for the vise. The challenge is to get the ingredients.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決したこの
発明の両クランプ治具は、テーブルないし基台に固定さ
れるセンタ部材１と、このセンタ部材に設けた貫通孔６
を挟んで背中合せに配置された一対の口金３ａ、３ｂ
と、この口金の一方３ａの背面に固定されて前記貫通孔
に挿入される先端に内周鍔１２ａを備えた筒状内挿体１
０ａと、前記口金の他方３ｂの背面に固定されて前記筒
状内挿体に挿入される先端に外周鍔１２ｂを備えた棒状
内挿体１０ｂと、前記貫通孔と筒状内挿体ないしその外
周に嵌挿されたスリーブとの間の筒状空所１８に嵌挿さ
れてそれぞれが前記一対の口金の背面に当接する一対の
筒状ピストン７と、前記センタ部材に設けられて前記筒
状空所１８の軸方向中央部に流体圧を供給する通孔２１
とを備えている。Both clamp jigs of the present invention, which have solved the above-mentioned problems, include a center member 1 fixed to a table or a base, and a through hole 6 formed in the center member.
A pair of caps 3a, 3b arranged back to back with the clip in between
And a cylindrical insert 1 having an inner peripheral flange 12a at the tip fixed to the back surface of one side 3a of the mouthpiece and inserted into the through hole.
0a, a rod-shaped insertion body 10b fixed to the back surface of the other side 3b of the mouthpiece and having an outer peripheral flange 12b at the tip to be inserted into the cylindrical insertion body, the through hole and the cylindrical insertion body or A pair of cylindrical pistons 7 that are fitted and inserted into a cylindrical space 18 between the sleeve and a sleeve that is fitted on the outer periphery and abut on the back surfaces of the pair of caps, respectively. A through hole 21 for supplying fluid pressure to the central portion of the void 18 in the axial direction
It has and.
【０００８】貫通孔６、筒状内挿体１０ａ、棒状内挿体
１０ｂ及び一対の筒状ピストン７からなる駆動部２は、
複数箇所に設けることができ、これらの複数の駆動部で
それぞれが一体の一対の口金３を進退させることができ
る。この構造は、幅広い口金を設けたい場合に有利であ
る。The drive unit 2 consisting of the through hole 6, the tubular insert 10a, the rod insert 10b, and the pair of tubular pistons 7,
It can be provided at a plurality of locations, and the plurality of drive portions can advance and retract the pair of bases 3, which are integrated with each other. This structure is advantageous when it is desired to provide a wide base.
【０００９】請求項２及び請求項３は、上記手段を備え
た両クランプ治具の実用上好ましい形態を備えたもの
で、請求項２に係る両クランプ治具は、筒状空所１８が
その周方向に等しい間隙幅を備え、これに嵌挿された周
方向に肉厚の等しい筒状ピストン７の先端に１個のＵ字
パッキン８が配置され、このＵ字パッキンの両側のリッ
プが当該筒状ピストン７と筒状空所１８の内外周壁との
間を封止しているものである。[0009] Claims 2 and 3 are provided with a practically preferable form of both clamp jigs provided with the above means. In both clamp jigs according to claim 2, the cylindrical space 18 is One U-shaped packing 8 is arranged at the tip of a cylindrical piston 7 having an equal gap width in the circumferential direction and fitted and inserted in the circumferential direction, and the lips on both sides of the U-shaped packing are The space between the cylindrical piston 7 and the inner and outer peripheral walls of the cylindrical space 18 is sealed.
【００１０】また請求項３に係る両クランプ治具は、内
周鍔１２ａと外周鍔１２ｂとの間に、一対の口金３ａ、
３ｂの復帰ばね１４と、これらの口金の進出端を相対的
に規定する筒状ストッパ１７とが介装されているもので
ある。Further, in both clamp jigs according to claim 3, a pair of bases 3a, 3a are provided between the inner peripheral flange 12a and the outer peripheral flange 12b.
A return spring 14 of 3b and a cylindrical stopper 17 that relatively defines the advancing ends of these caps are interposed.
【００１１】貫通孔６は、加工上は円筒孔とするのが最
も良いが、角丸四角断面孔や角丸逆三角断面孔とするの
が好ましい場合もある。このような形状は、口金３の上
下辺部分や周辺部分、あるいは口金３の上辺部分に、相
対的に大きなクランプ力を発生させ、口金３の中心と把
持されるワークの中心とがずれた状態となったときに、
ワークをより安定にクランプすることができる。一般的
には、クランプされたワークに対する加工反力がワーク
の上面に作用するので、上辺部分のクランプ力を相対的
に大きくできる角丸四角や角丸逆三角の断面形状が有利
な場合が多く生ずる。The through hole 6 is best formed as a cylindrical hole in terms of processing, but in some cases, it is preferable that the through hole 6 has a rounded square cross-section hole or a rounded inverted triangular cross-section hole. With such a shape, a relatively large clamping force is generated in the upper and lower side portions of the mouthpiece 3, the peripheral portion, or the upper side portion of the mouthpiece 3, and the center of the mouthpiece 3 and the center of the workpiece to be gripped are deviated. When
Workpiece can be clamped more stably. Generally, the processing reaction force against the clamped work acts on the upper surface of the work, so in many cases a rounded square or rounded inverted triangular cross-sectional shape that can relatively increase the clamping force of the upper side is advantageous. Occurs.
【００１２】貫通孔６をこのような形状としたときの筒
状内挿体１０ａないしこれに嵌挿されるスリーブ１３の
外周は、貫通孔６に相似の断面とすることもできるし、
円断面とすることもできる。１個のＵ字パッキン８で筒
状ピストン７の外周側と内周側とを封止するときは、前
者の構造を採用する必要がある。後者の構造は、製造及
び液封構造が複雑になるが、クランプ力を大きくできる
点で有利である。筒状内挿体の内周面や棒状内挿体の外
周面は、円断面とするのが好ましい。When the through hole 6 has such a shape, the cylindrical insert 10a or the outer periphery of the sleeve 13 fitted therein can have a cross section similar to the through hole 6.
It can also have a circular cross section. When sealing the outer peripheral side and the inner peripheral side of the cylindrical piston 7 with one U-shaped packing 8, it is necessary to adopt the former structure. The latter structure complicates the manufacturing and the liquid sealing structure, but is advantageous in that the clamping force can be increased. It is preferable that the inner peripheral surface of the cylindrical insertion member and the outer peripheral surface of the rod-shaped insertion member have a circular cross section.
【００１３】上記構造の両クランプ治具における駆動部
２は、幅広い一対の口金３に複数個連結することがで
き、そのような構造は、細長いワークをクランプする治
具として好適である。A plurality of driving parts 2 in both clamping jigs having the above structure can be connected to a wide pair of bases 3, and such a structure is suitable as a jig for clamping an elongated work.
【００１４】この発明の複数ワークの把持バイスは、基
台３０と、この基台に所定間隔で固定された複数の固定
口金２４と、隣接する固定口金相互の間に前記センタ部
材１を前記基台３０に固定して装着された請求項１、２
又は３記載の両クランプ治具３２とを備え、当該両クラ
ンプ治具の前記一対の口金３ａ、３ｂをそれぞれ隣接す
る固定口金２４に対向させたものである。The holding work vice according to the present invention comprises a base 30, a plurality of fixed bases 24 fixed to the base at predetermined intervals, and the center member 1 between the adjacent fixed bases. The device according to claim 1, wherein the device is fixedly mounted on the table 30.
Alternatively, both clamp jigs 32 described in 3 are provided, and the pair of ferrules 3a and 3b of the both clamp jigs are opposed to the adjacent fixed ferrules 24, respectively.
【００１５】[0015]
【作用】センタ部材１に設けられた通孔２１に油圧を供
給し、または通孔２１に充填された流体を加圧すること
により、筒状空所１８に流体圧が供給され、一対の口金
３ａ、３ｂを突出させて、これに対向している固定口金
２４との間でワークをクランプする。流体圧を開放すれ
ば、両口金３ａ、３ｂのクランプ力は開放され、復帰ば
ね１４を設けておけば、両口金３はそのばね力で復帰す
る。挿入体１０ａ、１０ｂに設けた内周鍔１２ａ及び外
周鍔１２ｂは、両口金及び筒状ピストンの脱落を防止す
るストッパとして機能し、この間に適宜長さの筒状スト
ッパ１７を遊嵌することにより、両口金３ａ、３ｂの相
対的なストロークを適宜設定できる。By supplying hydraulic pressure to the through hole 21 provided in the center member 1 or pressurizing the fluid filled in the through hole 21, the fluid pressure is supplied to the cylindrical space 18 and the pair of caps 3a. 3b is projected, and the work is clamped between the fixed mouthpiece 24 and the fixed mouthpiece 24 facing this. When the fluid pressure is released, the clamping force of both caps 3a and 3b is released, and when a return spring 14 is provided, both caps 3 are returned by the spring force. The inner peripheral flange 12a and the outer peripheral flange 12b provided on the inserts 10a and 10b function as stoppers for preventing both caps and the cylindrical piston from coming off, and a cylindrical stopper 17 having an appropriate length is loosely fitted between them. , Relative stroke of both mouthpieces 3a and 3b can be set up suitably.
【００１６】この発明の両クランプ治具は、口金を進出
させるシリンダ１８及びピストン７を筒状とし、その内
部に復帰ばね１４やストッパ１７などを設けたことによ
り、一対の口金３ａ、３ｂ間の寸法を小さくでき、従っ
てコンパクトで口金の進退ストロークが大きいクランプ
治具が得られ、これを用いることによりテーブル上に多
数のワークを固定可能なワークバイスが実現できる。ま
た、ピストン７も単に口金３ａ、３ｂの背面に当接させ
るだけの簡単な構造とすることができる。In both of the clamp jigs of the present invention, the cylinder 18 and the piston 7 for advancing the mouthpiece are formed in a tubular shape, and the return spring 14, the stopper 17 and the like are provided therein, so that the pair of the mouthpieces 3a, 3b is provided. Therefore, it is possible to obtain a compact clamping jig having a large stroke for advancing and retracting the die, which can realize a work vise capable of fixing a large number of works on a table. Further, the piston 7 can also have a simple structure in which it is simply brought into contact with the back surfaces of the mouthpieces 3a, 3b.
【００１７】しかもシリンダ１８が筒状であるため、口
金３の外周部にクランプ力が作用し、ワークの把持中心
が口金の中心から外れたときでも、口金が傾動すること
なく、安定なクランプを実現できる。また、クランプ力
を発生するピストンと口金のストロークを規制するスト
ッパとが同軸状に配置されるので、ワークが存在しない
状態で誤って流体圧をかけても口金が曲がるなどの弊害
が生じない。Moreover, since the cylinder 18 is tubular, a clamping force acts on the outer peripheral portion of the mouthpiece 3, and even when the center of gripping the work deviates from the center of the mouthpiece, the mouthpiece does not tilt and a stable clamp is performed. realizable. Further, since the piston that generates the clamping force and the stopper that restricts the stroke of the mouthpiece are coaxially arranged, there is no adverse effect such as bending of the mouthpiece even if fluid pressure is erroneously applied in the absence of a work.
【００１８】また、複数の駆動部２の筒状空所１８を通
孔２１やパイプで連通し、この複数駆動部を一体の口金
３ａ、３ｂに連結したものは、固定口金２４との間で細
長いワークを把持するのに使用する構造として有用であ
る。Further, the cylindrical cavity 18 of the plurality of drive parts 2 is connected to each other through the through holes 21 and pipes, and the plurality of drive parts are connected to the integrated bases 3a and 3b. It is useful as a structure used for gripping an elongated work.
【００１９】[0019]
【発明の実施の形態】以下、実施例を示す図面を参照し
て、この発明の実施形態を説明する。図１ないし図３
は、この発明の両クランプ治具の第１実施例を示したも
のである。この第１実施例の装置は、１個のセンタ部材
１に内蔵された３個の駆動部２を有しており、それらの
駆動部で進退する口金３ａ、３ｂはそれぞれ一体であ
る。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings illustrating examples. 1 to 3
Shows a first embodiment of both clamp jigs of the present invention. The apparatus according to the first embodiment has three drive parts 2 built in one center member 1, and the bases 3a and 3b that move forward and backward by these drive parts are integrated.
【００２０】センタ部材１は断面略正方形の細長い部材
で、その下方には横長矩形断面のベース部材４がボルト
で締結して固定されている。センタ部材１には、これを
図示しない工作機械のテーブル等に固定するための固定
ボルト孔５がベース部材４を貫通して設けられている。
センタ部材１の両側面部分に一対の口金３ａ、３ｂがセ
ンタ部材１を挟んで背中合せにして、かつベース部材４
のセンタ部材１から張り出した上面に載った形で設けら
れている。センタ部材１には、その両端と中央部とに口
金３ａ、３ｂをセンタ部材１から離隔及び接近させる方
向に進退させる駆動部２が設けられている。The center member 1 is an elongated member having a substantially square cross section, and a base member 4 having a horizontally long rectangular cross section is fastened and fixed below the center member 1 by bolts. The center member 1 is provided with a fixing bolt hole 5 for fixing the center member 1 to a table or the like of a machine tool (not shown) so as to penetrate the base member 4.
A pair of caps 3a and 3b are placed back to back on both sides of the center member 1 with the center member 1 interposed therebetween, and a base member 4 is provided.
The center member 1 is mounted on the upper surface of the center member 1. The center member 1 is provided with a drive unit 2 at both ends and a central portion thereof for moving the caps 3a and 3b forward and backward in a direction of separating from and approaching the center member 1.
【００２１】各駆動部２は、センタ部材１に設けられた
円筒形の貫通孔６と、この貫通孔内に収められた一対の
円筒状ピストン７ａ、７ｂ、それらの対向する先端に配
置されたＵ字パッキン８、口金の一方３ａにボルト９ａ
で固定された有底円筒状の筒状内挿体１０ａ、この筒状
内挿体の内周先端部にスナップリング１１で抜け止めさ
れた内周鍔１２ａ、筒状内挿体１０ａの外周に遊嵌され
たシリンダスリーブ１３、口金の他方３ｂの背面にボル
ト９ｂで固定された丸棒状の棒状内挿体１０ｂ、この棒
状内挿体の先端外周に一体に形成された外周鍔１２ｂ、
内周鍔１２ａと外周鍔１２ｂとの間に装架された復帰用
の圧縮コイルばね１４、及びセンタ部材１に設けたスト
レート孔１５と、円筒状ピストンの一方７ｂの円周一箇
所に設けた軸方向の長孔１６とを貫通してシリンダスリ
ーブ１３に先端を螺着されたストローク規制ねじ１７と
によって形成されている。Each drive unit 2 is arranged at a cylindrical through hole 6 provided in the center member 1, a pair of cylindrical pistons 7a and 7b housed in the through hole, and their opposite ends. U-shaped packing 8, bolt 3a on one side 3a of cap
A bottomed cylindrical tubular insert body 10a, an inner peripheral flange 12a secured to the inner peripheral end of the cylindrical insert body by a snap ring 11, and an outer peripheral surface of the cylindrical insert body 10a. A loosely fitted cylinder sleeve 13, a rod-shaped insert body 10b in the shape of a round rod fixed to the back surface of the other side 3b of the mouthpiece by a bolt 9b, an outer peripheral flange 12b integrally formed on the outer periphery of the tip of this rod-like insert body,
A compression coil spring 14 for restoration mounted between the inner peripheral flange 12a and the outer peripheral flange 12b, a straight hole 15 provided in the center member 1, and a shaft provided at one location on the circumference of one side 7b of the cylindrical piston. And a stroke regulating screw 17 having a tip screwed to the cylinder sleeve 13 and penetrating through the elongated hole 16 in the direction.
【００２２】センタ部材１に設けた貫通孔６は円筒形
で、筒状内挿体１０ａ及び棒状内挿体１０ｂは、この貫
通孔６と軸心を一致させてそれぞれの口金３ａ、３ｂに
固定されている。筒状内挿体１０ａの外周に遊嵌したシ
リンダスリーブ１３と貫通孔６との間には、円筒形の空
所１８が形成され、この空所に両側から筒状ピストン７
ａ、７ｂが挿入されている構造である。ストローク規制
ねじ１７は、長孔１６によって一方の円筒状ピストン７
ａのストローク範囲を規制することにより、当該ピスト
ンによって押動される一方の口金３ａ及び当該口金との
相対ストロークを復帰ばね１４の密着長さで規定される
他方の口金３ｂのストロークも制限している。同時にこ
のストローク規制ねじ１７は、シリンダスリーブ１３の
軸方向位置を固定して、筒状ピストン７ａ、７ｂが進出
したときの、当該ピストンと嵌まり合う内径側シリンダ
壁の長さが左右不揃いにならないようにしている。筒状
内挿体１０ａの外周面を高精度の円筒面に加工してやれ
ば、このようなシリンダスリーブ１３を設けない構造と
することもできる。The through hole 6 provided in the center member 1 has a cylindrical shape, and the cylindrical insert body 10a and the rod-like insert body 10b are fixed to the respective caps 3a and 3b with their axial centers aligned with the through hole 6. Has been done. A cylindrical space 18 is formed between the through hole 6 and the cylinder sleeve 13 loosely fitted on the outer periphery of the cylindrical insert 10a, and the cylindrical piston 7 is formed in the space from both sides.
This is a structure in which a and 7b are inserted. The stroke regulating screw 17 is provided with the elongated hole 16 so that the cylindrical piston 7
By restricting the stroke range of a, the stroke of the one mouthpiece 3a pushed by the piston and the relative stroke of the other mouthpiece 3b, which is defined by the contact length of the return spring 14, are also limited. There is. At the same time, the stroke regulating screw 17 fixes the axial position of the cylinder sleeve 13 so that when the cylindrical pistons 7a and 7b are advanced, the lengths of the inner diameter side cylinder walls that engage with the pistons do not become uneven. I am trying. If the outer peripheral surface of the tubular insert 10a is processed into a highly accurate cylindrical surface, such a cylinder sleeve 13 may not be provided.
【００２３】ベース部材４には、長手方向に作動油を供
給する通孔２１が貫通しており、この通孔の枝孔２２は
それぞれの駆動部のシリンダ室となる筒状空所１８に連
通している。通孔２１には作動油パイプが連結されて圧
力油が供給される。通孔２１の一端に螺進退するプラグ
を設けて、このプラグを手動で進退させることにより、
通孔２１内に充填した高粘度油を加圧及び減圧すること
により、口金３ａ、３ｂを進退させることもできる。A through hole 21 for supplying hydraulic oil in the longitudinal direction penetrates through the base member 4, and a branch hole 22 of this through hole communicates with a cylindrical space 18 which serves as a cylinder chamber of each drive portion. is doing. A hydraulic oil pipe is connected to the through hole 21 to supply pressure oil. By providing a plug that advances and retracts at one end of the through hole 21 and manually advancing and retracting the plug,
By pressing and depressurizing the high-viscosity oil filled in the through hole 21, the mouthpieces 3a and 3b can be moved forward and backward.
【００２４】通孔２１に油圧力が作動していない状態で
は、両側の口金３ａ、３ｂは、復帰ばね１４の力によっ
て互いに引寄せられる方向に付勢されて縮退している。
通孔２１に油圧力が供給されると、シリンダ室１８に油
圧力が作用し、円筒状ピストン７ａ、７ｂを両側に押し
出して、口金３ａ、３ｂを両側に向けて進出させる。従
って口金３ａ、３ｂを固定口金２４（図４参照）に対向
させて、これらの口金と固定口金との間に挿入されたワ
ークを把持することができる。一対の口金３ａ、３ｂ
は、それぞれ独立して進退するから、左右のワークに寸
法の差異があったときも、それらのワークはいずれも固
定口金２４側で加工基準面を位置決めされた状態でクラ
ンプされることになる。When the hydraulic pressure is not applied to the through hole 21, the mouthpieces 3a and 3b on both sides are urged by the force of the return spring 14 in a direction to be attracted to each other and retracted.
When the hydraulic pressure is supplied to the through hole 21, the hydraulic pressure acts on the cylinder chamber 18 and pushes the cylindrical pistons 7a and 7b to both sides to advance the mouthpieces 3a and 3b toward both sides. Therefore, the mouthpieces 3a, 3b can be made to face the fixed mouthpiece 24 (see FIG. 4) and the work inserted between these mouthpieces and the fixed mouthpiece can be gripped. A pair of bases 3a, 3b
Move independently of each other, so that even if there is a difference in size between the left and right workpieces, all of these workpieces will be clamped with the machining reference plane positioned on the fixed mouthpiece 24 side.
【００２５】Ｕ字パッキン８は、種々の直径の、しかも
断面寸法の異なるものが市販されているから、その大き
さに合せて種々の寸法のシリンダ室１８を設計すること
ができる。Since the U-shaped packing 8 having various diameters and different cross-sectional dimensions is commercially available, the cylinder chamber 18 of various dimensions can be designed according to the size.
【００２６】図４及び５は、この発明のバイスの一実施
例を示す図である。この実施例のものは、平行に配置し
た２枚の基台３０にその長手直角方向に等間隔に５本の
固定口金２４をボルト３１で固定し、それらの固定口金
の中間の位置に上述した構造の両クランプ治具３２をボ
ルト３３で固定した構造である。このバイスは、４個の
両クランプ治具を備えることにより、８個のワークを同
時に固定することができる。そして図より明らかなよう
に、固定口金２４と両クランプ治具の口金３ａ、３ｂと
で挟持されるワークは、固定口金２４側で固定位置が規
定されるから、この固定口金の把持面を基準として、ワ
ークに加工を行ってやれば、精度の高い加工が可能であ
る。4 and 5 are views showing an embodiment of the vise according to the present invention. In this embodiment, five fixing bases 24 are fixed to two bases 30 arranged in parallel at equal intervals in the direction perpendicular to the longitudinal direction with bolts 31, and the above-mentioned intermediate positions of the fixing bases are described. This is a structure in which both clamp jigs 32 of the structure are fixed by bolts 33. This vise can fix eight works at the same time by including four clamp jigs. As is clear from the figure, since the fixed position of the work clamped by the fixed base 24 and the bases 3a and 3b of both clamp jigs is defined on the side of the fixed base 24, the gripping surface of the fixed base is used as a reference. As a result, if the workpiece is machined, highly precise machining is possible.
【００２７】なお、図の実施例では、両クランプ治具３
２の３個の駆動部２で駆動される口金３ａ、３ｂは、そ
れぞれ一体であるが、それぞれ分割した個別の口金を設
けることにより、長手方向に幅寸法の違うワークを固定
する構造に簡単に変更することができる。In the illustrated embodiment, both clamp jigs 3
Although the mouthpieces 3a and 3b driven by the three drive units 2 of 2 are respectively integrated, by providing separate die portions respectively, it is possible to easily construct a structure in which workpieces having different width dimensions are fixed in the longitudinal direction. Can be changed.
【００２８】図６は、両クランプ治具の第２実施例を示
したものである。この第２実施例の装置は、口金３ａ、
３ｂを駆動する複数の駆動部２を複数のセンタ部材１に
一つずつ設けてそれらの通孔２１を配管で連結する構造
であること、従ってベース部材４を備えておらず、バイ
スの基台３０などにセンタ部材１を直接固定して使用す
ること、空気圧駆動とするためにピストン７を大面積と
したこと、それに伴ってピストン摺動部のシールを２本
のＵ字パッキン８ａ、８ｂで行っていること、シリンダ
スリーブ１３を備えておらず、ピストン７が筒状内挿体
１０ａの外周面に直接摺接していること、内周鍔１２ａ
がねじ構造で筒状内挿体１０ａに固定されていること、
棒状内挿体１０ｂと一体の筒状ストッパ１７を備えてい
ること、などが第１実施例の両クランプ治具と相違す
る。FIG. 6 shows a second embodiment of both clamp jigs. The device of the second embodiment is provided with a base 3a,
The structure is such that a plurality of drive parts 2 for driving 3b are provided one by one in the plurality of center members 1 and the through holes 21 thereof are connected by pipes. Therefore, the base member 4 is not provided, and the base of the vise is not provided. 30 to be used by directly fixing the center member 1, the piston 7 has a large area for pneumatic drive, and the seal of the piston sliding portion is accompanied by two U-shaped packings 8a and 8b. What is being done, the cylinder sleeve 13 is not provided, and the piston 7 is in direct sliding contact with the outer peripheral surface of the tubular insert 10a, the inner peripheral flange 12a.
Is fixed to the tubular insert 10a with a screw structure,
It is different from both clamp jigs of the first embodiment in that a cylindrical stopper 17 integrated with the rod-shaped inserter 10b is provided.
【００２９】各センタ部材１は、これに設けた固定ボル
ト孔５に挿通したボルトで直接工作機械のテーブルやバ
イスの基台３０等に個別に固定する。シリンダ室１８
は、筒状内挿体１０ａの外周と貫通孔６との間に形成さ
れている。なお、ワークを挿入しない状態で通孔２１に
空気圧を供給したときは、内周鍔１２ａ及び外周鍔１２
ｂが筒状ストッパ１７に当接することで、口金３ａ、３
ｂの抜出しが防止される。Each center member 1 is individually fixed directly to the table of the machine tool, the base 30 of the vise or the like by the bolts inserted through the fixing bolt holes 5 provided therein. Cylinder chamber 18
Is formed between the outer periphery of the tubular insert 10a and the through hole 6. When air pressure is supplied to the through hole 21 without inserting the work, the inner peripheral flange 12a and the outer peripheral flange 12 are
By contacting b with the cylindrical stopper 17, the caps 3a, 3
The removal of b is prevented.
【００３０】[0030]
【発明の効果】以上説明したこの発明により、工作機械
のテーブルに多数のワーク、特に曲がりやすい細長いワ
ークを固定して、同時加工を行うためのコンパクトなク
ランプ装置を提供することができ、多数のワークの着脱
も速やかに行うことができるので、加工能率を大幅に向
上させることが可能である。As described above, according to the present invention, it is possible to provide a compact clamp device for performing simultaneous machining by fixing a large number of works, particularly a slender work which is easily bent, to a table of a machine tool. Since the work can be attached and detached quickly, it is possible to greatly improve the machining efficiency.
【図１】両クランプ治具の実施例を口金縮退状態で示す
断面平面図FIG. 1 is a cross-sectional plan view showing an embodiment of both clamp jigs in a retracted state of a die.
【図２】図１の実施例の口金縮退状態の横断面図FIG. 2 is a transverse sectional view of the embodiment of FIG. 1 in a retracted state of the base.
【図３】図１の実施例の口金進出状態の断面平面図FIG. 3 is a sectional plan view of the embodiment of FIG.
【図４】バイスの実施例を示す平面図FIG. 4 is a plan view showing an example of a vise.
【図５】図４の実施例の側面図5 is a side view of the embodiment of FIG.
【図６】両クランプ治具の第２実施例を口金縮退状態で
示す一部断面平面図FIG. 6 is a partially sectional plan view showing a second embodiment of both clamp jigs in a retracted state of the mouthpiece.
１ センタ部材 3a,3b 口金 ６ 貫通孔 ７ 円筒状ピストン ８ Ｕ字パッキン 10a 筒状内挿体 10b 棒状内挿体 12a 内周鍔 12b 外周鍔 14 圧縮コイルばね 17 ストッパ 18 空所 21 通孔 24 固定口金 30 基台 32 クランプ治具 1 Center member 3a, 3b mouthpiece 6 through holes 7 Cylindrical piston 8 U-shaped packing 10a tubular insert 10b Rod insert 12a Inner circumference Tsuba 12b outer collar 14 Compression coil spring 17 Stopper 18 vacant place 21 through holes 24 Fixed base 30 bases 32 Clamp jig
Claims (4)
部材(1)と、このセンタ部材に設けた貫通孔(6)を挟んで
背中合せに配置された一対の口金(3a,3b)と、この口金
の一方(3a)の背面に固定されて前記貫通孔に挿入される
先端に内周鍔(12a)を備えた筒状内挿体(10a)と、前記口
金の他方(3b)の背面に固定されて前記筒状内挿体に挿入
される先端に外周鍔(12b)を備えた棒状内挿体(10b)と、
前記貫通孔と筒状内挿体ないしその外周に嵌挿されたス
リーブとの間の筒状空所(18)に嵌挿されてそれぞれが前
記一対の口金の背面に当接する一対の筒状ピストン(7)
と、前記センタ部材に設けられて前記筒状空所(18)の軸
方向中央部に流体圧を供給する通孔(21)とを備えてい
る、両クランプ治具。1. A center member (1) fixed to a table or a base, and a pair of caps (3a, 3b) arranged back to back with a through hole (6) provided in the center member interposed therebetween. A cylindrical insert (10a) having an inner peripheral flange (12a) at the tip fixed to the back surface of one of the bases (3a) and inserted into the through hole, and on the back surface of the other side (3b) of the base. A rod-shaped insertion body (10b) provided with an outer peripheral flange (12b) at the tip which is fixed and inserted into the cylindrical insertion body,
A pair of cylindrical pistons which are inserted into the cylindrical space (18) between the through hole and the cylindrical insertion body or the sleeve which is inserted around the cylindrical insertion body and which are in contact with the back surfaces of the pair of caps. (7)
And a through hole (21) provided in the center member and supplying a fluid pressure to a central portion in the axial direction of the cylindrical space (18).
間隙幅を備え、これに嵌挿された周方向に肉厚の等しい
前記筒状ピストン(7)の先端に１個のＵ字パッキン(8)が
配置され、このＵ字パッキンの両側のリップが当該筒状
ピストンと前記筒状空所の内外周壁との間を封止してい
る、請求項１記載の両クランプ治具。2. The cylindrical space (18) has a uniform gap width in its circumferential direction, and one is provided at the tip of the cylindrical piston (7) fitted in the hollow space and having a uniform thickness in the circumferential direction. A clamp for both clamps according to claim 1, wherein a U-shaped packing (8) is arranged, and lips on both sides of the U-shaped packing seal between the tubular piston and the inner and outer peripheral walls of the tubular cavity. Ingredient
に、前記一対の口金(3a,3b)の復帰ばね(14)と、これら
の口金の進出端を相対的に規定する筒状ストッパ(17)と
が介装されている、請求項１又は２記載の両クランプ治
具。3. The return springs (14) of the pair of caps (3a, 3b) and the advance ends of these caps are relatively arranged between the inner peripheral flange (12a) and the outer peripheral flange (12b). Both clamp jigs according to claim 1 or 2, wherein a defined cylindrical stopper (17) is interposed.
された複数の固定口金(24)と、隣接する固定口金相互の
間に前記センタ部材(1)を前記基台(30)に固定して装着
された請求項１、２又は３記載の両クランプ治具(32)と
を備え、当該両クランプ治具の前記一対の口金(3a,3b)
をそれぞれ隣接する固定口金(24)に対向させた、複数ワ
ークの把持バイス。4. A base (30), a plurality of fixed bases (24) fixed to the base at predetermined intervals, and the center member (1) between the adjacent fixed bases (1). 30) The clamp jigs (32) according to claim 1, 2 or 3 fixedly attached to the clamp jigs (32), and the pair of caps (3a, 3b) of the clamp jigs.
A gripping vise for a plurality of works, in which each of them faces an adjacent fixed base (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001377681A JP3950329B2 (en) | 2001-12-11 | 2001-12-11 | Hydraulic double clamping jig and multiple workpiece gripping vise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001377681A JP3950329B2 (en) | 2001-12-11 | 2001-12-11 | Hydraulic double clamping jig and multiple workpiece gripping vise |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003175431A true JP2003175431A (en) | 2003-06-24 |
| JP3950329B2 JP3950329B2 (en) | 2007-08-01 |
Family
ID=19185589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001377681A Expired - Fee Related JP3950329B2 (en) | 2001-12-11 | 2001-12-11 | Hydraulic double clamping jig and multiple workpiece gripping vise |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3950329B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006136977A (en) * | 2004-11-12 | 2006-06-01 | Fuji Heavy Ind Ltd | Fixing device and fixing method |
| KR100944856B1 (en) | 2009-09-25 | 2010-03-04 | 김진홍 | Hydraulic jockey |
| TWI727818B (en) * | 2020-06-01 | 2021-05-11 | 鄭羣軒 | Hydraulic auxiliary jig for clamping mechanism |
| CN114321086A (en) * | 2021-12-30 | 2022-04-12 | 广州晶品智能压塑科技股份有限公司 | Embedded oil cylinder structure |
| CN115781346A (en) * | 2022-12-08 | 2023-03-14 | 济南凛如海嗒网络科技服务有限公司 | Frock clamp that numerical control lathe cylinder body processing was used |
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|---|---|---|---|---|
| JPS5870849U (en) * | 1981-11-10 | 1983-05-13 | 相生精機株式会社 | Workpiece fixing device for machine tools |
| JPS61284339A (en) * | 1985-06-10 | 1986-12-15 | Aioi Seiki Kk | Work clamp device for horizontal machining center |
| JPH0572338U (en) * | 1992-03-06 | 1993-10-05 | 神岡鉱業株式会社 | Work holding device |
| JPH11198084A (en) * | 1998-01-12 | 1999-07-27 | Kondo Seisakusho:Kk | Fluid pressure chuck for low speed opening and closing motion |
| JPH11300562A (en) * | 1998-04-14 | 1999-11-02 | Tec Yasuda:Kk | Work vice, and work receiving base for round bar of work vice |
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2001
- 2001-12-11 JP JP2001377681A patent/JP3950329B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5870849U (en) * | 1981-11-10 | 1983-05-13 | 相生精機株式会社 | Workpiece fixing device for machine tools |
| JPS61284339A (en) * | 1985-06-10 | 1986-12-15 | Aioi Seiki Kk | Work clamp device for horizontal machining center |
| JPH0572338U (en) * | 1992-03-06 | 1993-10-05 | 神岡鉱業株式会社 | Work holding device |
| JPH11198084A (en) * | 1998-01-12 | 1999-07-27 | Kondo Seisakusho:Kk | Fluid pressure chuck for low speed opening and closing motion |
| JPH11300562A (en) * | 1998-04-14 | 1999-11-02 | Tec Yasuda:Kk | Work vice, and work receiving base for round bar of work vice |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006136977A (en) * | 2004-11-12 | 2006-06-01 | Fuji Heavy Ind Ltd | Fixing device and fixing method |
| JP4574331B2 (en) * | 2004-11-12 | 2010-11-04 | 富士重工業株式会社 | Fixing device |
| KR100944856B1 (en) | 2009-09-25 | 2010-03-04 | 김진홍 | Hydraulic jockey |
| TWI727818B (en) * | 2020-06-01 | 2021-05-11 | 鄭羣軒 | Hydraulic auxiliary jig for clamping mechanism |
| CN114321086A (en) * | 2021-12-30 | 2022-04-12 | 广州晶品智能压塑科技股份有限公司 | Embedded oil cylinder structure |
| CN115781346A (en) * | 2022-12-08 | 2023-03-14 | 济南凛如海嗒网络科技服务有限公司 | Frock clamp that numerical control lathe cylinder body processing was used |
| CN115781346B (en) * | 2022-12-08 | 2023-08-22 | 深圳市新万盛兴精密机电有限公司 | Frock clamp that numerical control lathe cylinder body processing was used |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3950329B2 (en) | 2007-08-01 |
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