JPH0671560A - Automatic centering and center rest device for cylindrical grinding of long work and grinding method therewith - Google Patents
Automatic centering and center rest device for cylindrical grinding of long work and grinding method therewithInfo
- Publication number
- JPH0671560A JPH0671560A JP4250515A JP25051592A JPH0671560A JP H0671560 A JPH0671560 A JP H0671560A JP 4250515 A JP4250515 A JP 4250515A JP 25051592 A JP25051592 A JP 25051592A JP H0671560 A JPH0671560 A JP H0671560A
- Authority
- JP
- Japan
- Prior art keywords
- steady rest
- automatic centering
- grinding
- work
- feed screw
- 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.)
- Granted
Links
Landscapes
- Machine Tool Units (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は良好な加工精度特に真円
度を要求される長尺ワークの研削用自動芯出振れ止め装
置及びその装置を用いた研削加工方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic centering steady rest device for grinding a long workpiece which is required to have a good working accuracy, in particular, a roundness, and a grinding working method using the device.
【０００２】[0002]
【従来の技術】従来、長尺ワークを研削加工する場合、
ワークの自重による撓みと研削力による撓み（逃げ）を
止めるため、図６の２点支持形振れ止めを用いることが
多い。また特公昭４７−２９８３６号で公知の図７の自
動芯出振れ止めは、最近機械的構造上高精度振れ止めの
製作が可能になったので、ローラ１０１，１０２を爪に
替えて長尺ワーク研削用に使用する事が多くなった。2. Description of the Related Art Conventionally, when grinding a long workpiece,
The two-point support type steady rest shown in FIG. 6 is often used in order to stop the deflection due to the self-weight of the work and the deflection (escape) due to the grinding force. Further, since the automatic centering steady rest shown in FIG. 7 known in Japanese Patent Publication No. 47-29836 has recently become capable of producing a high-precision steady rest due to its mechanical structure, the rollers 101 and 102 are replaced with pawls for long workpieces. It has been used more often for grinding.
【０００３】[0003]
【発明が解決しようとする課題】従来の技術で述べた前
者は、手動操作のため自動化に対応できず、特に真円度
の悪い前加工面を支持する際の操作は、極めて高度の熟
練を要するという問題点を有している。後者は流体圧駆
動手段１０５により一気に外径を把持する構造のため、
支持面の非真円が研削面に移り、良好な真円度の研削面
を得ることができないという問題点を有していた。本発
明は従来の技術の有するこのような問題点に鑑みなされ
たものであり、その目的とするところは、ワークの振れ
止め支持部の非真円が真円に加工できるまで、ＮＣ制御
で自動芯出振れ止めの把持径を変え、その後は流体圧に
よる通常の支持方法で長尺ワークの研削加工を行うこと
ができる自動芯出振れ止め装置及びその装置を用いた研
削加工方法を提供しようとするものである。The former described in the prior art cannot be adapted to automation because it is a manual operation, and especially the operation for supporting a pre-machined surface having a poor roundness requires an extremely high degree of skill. It has a problem that it costs. The latter is a structure in which the fluid pressure driving means 105 grasps the outer diameter at once,
There was a problem that the non-roundness of the supporting surface was transferred to the ground surface, and a ground surface with good roundness could not be obtained. The present invention has been made in view of the above problems of the conventional technique, and an object of the present invention is to automatically perform NC control until a non-perfect circle of a steady rest of a workpiece can be machined into a perfect circle. (EN) An automatic centering steady rest device capable of changing the gripping diameter of the centering steady rest and thereafter grinding a long work by a normal supporting method by fluid pressure, and a grinding working method using the device. To do.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に、本発明における長尺ワーク円筒研削用自動芯出振れ
止め装置は、カムを対称に設けたロッドの摺動位置の変
化に応じて前記カムとの接触によって開閉可能な爪が前
記ロッドとともに異径のワークを同心でつかみ得るよう
に構成された自動芯出振れ止めを円筒研削盤のテーブル
上に着脱可能に設け、前記振れ止めの枠体に前記ロッド
を摺動させる流体圧駆動手段を設け、前記流体圧駆動手
段による前記ロッドの前進を拘束するように係合して前
記拘束を緩めるように位置決めをするＮＣ制御の送りね
じ部材を設け、前記振れ止めがワークを把持したとき送
りねじ部材の早送り前進により前記係合を解除するよう
にしたものである。In order to achieve the above object, an automatic centering steady rest device for cylindrical grinding of a long workpiece according to the present invention responds to a change in sliding position of a rod provided with a symmetric cam. An automatic centering steady rest, configured so that a claw that can be opened and closed by contact with the cam together with the rod to concentrically hold a work of different diameter, is detachably provided on the table of the cylindrical grinder, and An NC controlled feed screw member is provided which is provided with fluid pressure driving means for sliding the rod on the frame body and which is engaged so as to restrain the forward movement of the rod by the fluid pressure driving means and is positioned so as to loosen the restraint. Is provided, and when the steady rest grips the work, the engagement is released by the rapid forward advance of the feed screw member.
【０００５】また本発明における自動芯出振れ止め装置
を用いた長尺ワークの研削方法は、両センタにより支持
した長尺ワークの振れ止め位置近くにＮＣ制御で砥石を
軽く接触させ、ＮＣ制御の送りねじ部材を手動制御で自
動芯出振れ止め開閉用流体圧駆動手段の前進を止めるよ
うに移動位置決めを行って前記自動芯出振れ止めの把持
径を小さくし、前記ワークの非真円の凸部が前記自動芯
出振れ止めに軽く接触したのを前記砥石から出る間欠的
な火花又は研削音により検知して手動送りを停止し、Ｎ
Ｃの同期制御による前記砥石の前進と前記自動芯出振れ
止めの閉じ勝手の送りで前記凸部の研削を行い、前記凸
部が無くなったのを主軸モータ入力変化の安定により検
知して前記流体圧駆動手段の前進を拘束するように係合
する前記送りねじ部材を早送り前進して前記係合を解除
し、前記流体圧駆動手段の力で前記自動芯出振れ止めに
より前記ブロックを支持して加工プログラムに従って前
記長尺ワークの研削加工を行うものである。Further, in the method for grinding a long work using the automatic centering steady rest according to the present invention, the grindstone is lightly contacted by the NC control near the steady rest position of the long work supported by both centers, and the NC control is performed. The feed screw member is manually controlled to perform movement and positioning so as to stop the advance of the fluid pressure driving means for opening and closing the automatic centering steady rest, thereby reducing the gripping diameter of the automatic centering steady rest and making the non-round convexity of the workpiece. The light contact of the part with the automatic centering rest is detected by the intermittent spark or grinding noise coming out of the grindstone, and the manual feed is stopped.
The convex portion is ground by advancing the grindstone by the synchronous control of C and automatically feeding the closing of the automatic centering steady rest, and the disappearance of the convex portion is detected by the stable change of the spindle motor input to detect the fluid. The feed screw member engaged so as to restrain the forward movement of the pressure driving means is fast forward advanced to release the engagement, and the block is supported by the automatic centering steady rest by the force of the fluid pressure driving means. The long workpiece is ground according to a machining program.
【０００６】[0006]
【作用】流体圧駆動で開閉する自動芯出振れ止めの把持
径を、ＮＣ制御の送りねじ部材で流体圧の閉じ勝手の力
を止めるように移動位置決めして把持径を小さくすると
同時に、砥石の送りをこれと同期させて切込み、前加工
の非真円の凸部が無くなるまで支持位置を研削し、真円
度が良くなった時点で、送りねじ部材を早送り前進して
流体圧駆動手段との係合解除し、通常の流体圧駆動の自
動芯出振れ止めに戻して研削加工を行う。[Function] The gripping diameter of the automatic centering steady rest that is opened and closed by fluid pressure driving is moved and positioned by the NC control feed screw member so as to stop the force of closing the fluid pressure. The feed is cut in synchronization with this, the support position is ground until there is no convex portion of the non-round shape in the pre-machining, and when the roundness is improved, the feed screw member is fast forward advanced to become the fluid pressure drive means. Is disengaged and returned to the normal fluid pressure driven automatic centering steady rest to perform grinding.
【０００７】[0007]
【実施例】実施例について図面を参照して説明する。図
２の円筒研削盤において、ベッド１前側に設けられた図
示しないＺ軸方向の案内上にテーブル２が移動可能に載
置され、テーブル２はベッド１に固着のＺ軸サーボモー
タ３によりボールねじ４を介して移動位置決めされる。
ベッド１後側に設けられた図示しないＸ軸方向の案内上
に砥石台５が移動可能に載置され、砥石台５はベッド１
に固着のＸ軸サーボモータ６によりボールねじ７を介し
て移動位置決めされる。砥石台５には砥石軸８が回転可
能に支持され、砥石軸８の左端に砥石９が着脱可能に取
付けられており、砥石９は砥石モータ１１によりベルト
１０を介して回転される。EXAMPLES Examples will be described with reference to the drawings. In the cylindrical grinder of FIG. 2, a table 2 is movably mounted on a Z-axis direction guide (not shown) provided on the front side of the bed 1, and the table 2 is mounted on the bed 1 by a Z-axis servomotor 3 fixed to a ball screw. 4 is moved and positioned.
The grindstone base 5 is movably mounted on a guide (not shown) provided on the rear side of the bed 1 in the X-axis direction.
The X-axis servomotor 6 fixed to the position is moved and positioned via the ball screw 7. A grindstone shaft 8 is rotatably supported on the grindstone base 5, and a grindstone 9 is detachably attached to the left end of the grindstone shaft 8. The grindstone 9 is rotated by a grindstone motor 11 via a belt 10.
【０００８】テーブル２上には主軸台１２と心押台１３
が取付位置変更可能にそれぞれ固着されており、主軸台
１２に固着の主軸先端にセンタ１４が、また心押台１３
に軸方向移動可能に嵌挿される心押軸１５の先端にセン
タ１６がそれぞれ着脱可能に装着され、両センタ１４，
１６間に長尺ワークＷが回転可能に支持されている。ワ
ークＷには左端部にけれ１７が着脱可能に取付けられて
おり、主軸台１２に固着の主軸モータ１８により回転さ
れる回し金１９に植設されたピン２１によりワークＷが
回転されるようになっている。テーブル２上にはワーク
Ｗのほぼ中央位置に自動芯出振れ止めユニット２２がＸ
軸方向後向きに取付けられている。自動芯出振れ止めユ
ニット２２は図１に示すように、枠体２３の右側にカム
２４を対称に設けたロッド２５の軸方向移動で、ピン２
６により枢支されるアーム２０後端のローラ２７がカム
２４と接触して、先端の爪２８がロッド２５先端の爪２
９とともに異径のワークを同心で掴み得るように構成さ
れた特公昭４７−２９８３６号で公知の自動芯出機構を
有する振れ止めが設けられている。A headstock 12 and a tailstock 13 are mounted on the table 2.
Are fixed so that their mounting positions can be changed. The center 14 is fixed to the headstock 12 fixed to the headstock 12, and the tailstock 13 is fixed.
A center 16 is detachably attached to the tip of a tailstock shaft 15 that is fitted in the axial direction so that the two centers 14,
A long work W is rotatably supported between the sixteen. A rake 17 is removably attached to the left end of the work W, so that the work W is rotated by a pin 21 planted in a turning gear 19 that is rotated by a spindle motor 18 fixed to the headstock 12. Has become. On the table 2, the automatic centering steady rest unit 22 is placed at the approximate center position of the workpiece W.
It is mounted axially rearward. As shown in FIG. 1, the automatic centering steady rest unit 22 is driven by the axial movement of a rod 25 provided with a cam 24 symmetrically on the right side of a frame body 23 to move the
The roller 27 at the rear end of the arm 20 pivotally supported by 6 comes into contact with the cam 24, and the claw 28 at the tip ends the claw 2 at the tip of the rod 25.
9 is provided with a steady rest having an automatic centering mechanism known from Japanese Patent Publication No. 47-29836, which is configured so as to concentrically grip workpieces having different diameters.
【０００９】枠体２３には油圧シリンダ３１がロッド２
５と同心に固着されており、油圧シリンダ３１のピスト
ンロッド３２の先端はロッド２５の後端に固着されてい
る。更に枠体２３の左端にはハウジング３３が油圧シリ
ンダ３１と同心に取付けられており、ハウジング３３に
ドライブ軸３４が回転可能に支持され、ドライブ軸３４
は先端がスプライン軸３４ａに形成されている。このス
プライン軸３４ａはハウジング３３の右端に同心に固着
のブラケット３５に回転及び軸方向移動可能に嵌挿され
るドライブスリーブ３６左端のスプライン穴に嵌合され
ており、ドライブスリーブ３６の右端に送りねじ３７の
左端が固着されている。The frame 23 has a hydraulic cylinder 31 and a rod 2
The piston rod 32 of the hydraulic cylinder 31 is fixed to the rear end of the rod 25. Further, a housing 33 is attached to the left end of the frame body 23 concentrically with the hydraulic cylinder 31, and a drive shaft 34 is rotatably supported by the housing 33.
Has a tip formed on the spline shaft 34a. The spline shaft 34a is fitted in a spline hole at the left end of a drive sleeve 36 which is fitted to a bracket 35 concentrically fixed to the right end of the housing 33 so as to be rotatable and axially movable, and a feed screw 37 is provided at the right end of the drive sleeve 36. The left edge of is stuck.
【００１０】送りねじ３７に螺合されるナット３８は、
油圧シリンダ３１の左端に固着されており、送りねじ３
７右端の鍔部３７ａはピストンロッド３２左側に穿設さ
れている先止まりの中心穴３２ａ内に回転及び軸方向移
動可能に嵌挿され、鍔部３７ａの左端面は蓋３９の右端
面と当接してピストンロッド３２の前進を拘束するよう
になっている。更にドライブスリーブ３５の右端にはド
ッグ４１が一体に設けられており、油圧シリンダ３１に
固着の支え４２に送りねじ３７の前進端位置確認用リミ
ットスイッチＬＳ１と後退端位置確認用リミットスイッ
チＬＳ２が位置変更可能に取付けられている。ドライブ
軸３４はハウジング３３の左端に固着のサーボモータ４
３により減速器４４を介してドライブされる。The nut 38 screwed onto the feed screw 37 is
It is fixed to the left end of the hydraulic cylinder 31, and the feed screw 3
7 The flange portion 37a at the right end is rotatably and axially movably fitted into a center hole 32a formed at the left end of the piston rod 32, and the left end surface of the flange portion 37a contacts the right end surface of the lid 39. The piston rod 32 comes into contact with the piston rod 32 to restrain the forward movement thereof. Further, a dog 41 is integrally provided at the right end of the drive sleeve 35, and a limit switch LS1 for confirming the forward end position of the feed screw 37 and a limit switch LS2 for confirming the backward end position of the feed screw 37 are positioned on the support 42 fixed to the hydraulic cylinder 31. It is changeably installed. The drive shaft 34 is a servo motor 4 fixed to the left end of the housing 33.
3 is driven via the decelerator 44.
【００１１】油圧シリンダ３１に供給される圧油は、油
圧源Ｐよりレギュレータ４５により圧力調整されたのち
電磁弁４６に送られ、更にチェックバルブを並列に有す
る絞り４７，４８を経て後室と前室に供給されるように
なっている。図３は振れ止め制御システムのブロック線
図であり、５１はプログラム記憶部、５２はデータ設定
部、５３は手動でパルスを発生する手動パルサ、５４は
サーボモータ４３を駆動するドライブユニットである。
５５は主軸モータ１８の入力変動検知部、５６は主軸モ
ータ電源の開閉器、５７はデータ設定部５２への入力接
続用インタフェイスである。The pressure oil supplied to the hydraulic cylinder 31 is adjusted in pressure by a regulator 45 from a hydraulic pressure source P and then sent to a solenoid valve 46. Further, the pressure oil is passed through throttles 47 and 48 having check valves in parallel, and the rear chamber and the front chamber. It is supplied to the room. FIG. 3 is a block diagram of the steady rest control system, in which 51 is a program storage unit, 52 is a data setting unit, 53 is a manual pulser for manually generating pulses, and 54 is a drive unit for driving the servomotor 43.
Reference numeral 55 is an input fluctuation detection unit of the spindle motor 18, 56 is a switch for the spindle motor power supply, and 57 is an input connection interface to the data setting unit 52.
【００１２】続いて本実施例の作用について説明する。
両センタ１４，１５間に長尺ワークＷを支持し、テーブ
ル２をＺ軸移動して自動芯出振れ止め２２の前に砥石９
が来るように位置決めし、ワークを回転して砥石台５を
Ｘ軸方向ワーク側に移動し、砥石９がワークＷに軽く接
触する位置に位置決めする。次いで手動パルサを操作し
てサーボモータ４３により送りねじ３７を回転し、前進
方向に付勢されている油圧シリンダ３１のピストンロッ
ド３２の拘束を入力パルス量ずつ解除して自動芯出振れ
止め２２を閉じ、爪２８，２９が前加工の非真円の凸部
に当接したのを、砥石９から出る間欠的な火花又は研削
音により検知して手動パルサによる送りを停止する。Next, the operation of this embodiment will be described.
The long work W is supported between the centers 14 and 15, and the table 2 is moved in the Z-axis to move the grindstone 9 in front of the automatic centering steady rest 22.
Position, the work is rotated to move the grindstone base 5 toward the work in the X-axis direction, and the grindstone 9 is positioned at a position where it lightly contacts the work W. Then, the manual pulsar is operated to rotate the feed screw 37 by the servo motor 43 to release the restraint of the piston rod 32 of the hydraulic cylinder 31 which is biased in the forward direction by the input pulse amount to set the automatic centering steady rest 22. When the claws 28 and 29 are closed and come into contact with the non-round convex portion of the pre-process, it is detected by intermittent sparks or grinding noises emitted from the grindstone 9 and the feeding by the manual pulser is stopped.
【００１３】次いでＸ軸サーボモータ６による砥石９の
切込みと、サーボモータ４３による自動芯出振れ止めの
閉じ勝手の送りを同期させて凸部の研削を行う。この研
削加工中は非真円の凸部の断続切削となり、主軸モータ
１８への入力は大きく変動するが、次第に凸部が取れて
真円度が良くなるにつれて入力変動がなくなる。これを
入力変動検知部５５で検知して、早送り速度で送りねじ
３７を前進端位置まで前進させて、ピストンロッド３２
の係合を解除し、ワークＷを油圧シリンダ３１の推力に
より支持して、ＮＣのプログラムに従って長尺ワークの
研削加工を実行する。Then, the cutting of the grindstone 9 by the X-axis servomotor 6 and the automatic feed of the automatic centering steady stop by the servomotor 43 are synchronized to grind the convex portion. During the grinding process, the non-circular convex portion is intermittently cut, and the input to the spindle motor 18 fluctuates greatly, but as the convex portion is gradually removed and the roundness improves, the input fluctuation disappears. This is detected by the input variation detection unit 55, and the feed screw 37 is advanced to the forward end position at the rapid feed speed, and the piston rod 32
Is disengaged, the work W is supported by the thrust of the hydraulic cylinder 31, and the long work is ground according to the NC program.
【００１４】尚本実施例の自動芯出振れ止めユニット２
２は、サーボモータ４３がロッド２５と同心に設けられ
ている例について説明したが、長手寸法を短くするた
め、図４の構造図に示すようにベベルギヤ５８Ａ，５８
Ｂを用いドライブ軸５９，６１を直交する二軸として、
サーボモータ４３を垂直に設けることもでき、更に図５
に示すようにギヤー６２，６３を用いてサーボモータ４
３を芯違い位置に設けることもできる。The automatic centering steady rest unit 2 of this embodiment
2 has described the example in which the servo motor 43 is provided concentrically with the rod 25, but in order to shorten the longitudinal dimension, the bevel gears 58A and 58A are provided as shown in the structural diagram of FIG.
Using B, the drive axes 59 and 61 are two orthogonal axes,
The servo motor 43 can be provided vertically, and further, as shown in FIG.
Servo motor 4 using gears 62 and 63 as shown in
It is also possible to provide 3 at the misaligned position.
【００１５】[0015]
【発明の効果】本発明は上述のとおり構成されているの
で、次に記載する効果を奏する。流体圧駆動による自動
芯出振れ止めの閉じ勝手の動きを、ＮＣ制御の送りねじ
部材により拘束するように移動位置決めして、砥石の送
りと振れ止めの閉じ勝手の送りとを同期させて振れ止め
支持部が真円になるまで研削したのち、流体圧駆動で支
持部を掴んで長尺ワークの研削加工を行うようにしたの
で、熟練者の名人芸的振れ止め操作に依存することなく
研削精度特に真円度のきびしい長尺ワークの研削加工が
殆どが自動で行えるようになり、研削精度の安定化と省
人化に有効である。Since the present invention is configured as described above, it has the following effects. Closed movement of automatic centering steady rest by fluid pressure drive is moved and positioned so as to be constrained by feed screw member of NC control, and steady feed is achieved by synchronizing the feed of the grindstone and the close-end feed of steady rest. After grinding the support to a perfect circle, the support is gripped by fluid pressure to grind a long workpiece, so the grinding accuracy does not depend on the expert steady rest operation. In particular, most long workpieces with extremely roundness can be automatically ground, which is effective in stabilizing the grinding accuracy and saving labor.
【図１】本実施例の自動芯出振れ止め装置の断面図であ
る。FIG. 1 is a sectional view of an automatic centering steady rest of the present embodiment.
【図２】自動芯出振れ止め装置を取付けた円筒研削盤の
上視図である。FIG. 2 is a top view of a cylindrical grinder equipped with an automatic centering steady rest.
【図３】自動芯出振れ止め制御システムのブロック線図
である。FIG. 3 is a block diagram of an automatic centering steady rest control system.
【図４】自動芯出振れ止め装置の他の実施例を示す構造
図である。FIG. 4 is a structural view showing another embodiment of the automatic centering steady rest.
【図５】自動芯出振れ止め装置の他の実施例を示す構造
図である。FIG. 5 is a structural diagram showing another embodiment of the automatic centering steady rest.
【図６】従来の２点支持形振れ止めの斜視図である。FIG. 6 is a perspective view of a conventional two-point support type steady rest.
【図７】従来の自動芯出振れ止めの断面図である。FIG. 7 is a sectional view of a conventional automatic centering steady rest.
２ テーブル ９ 砥石 １８ 主軸モータ １４，１６ セン
タ ２０ アーム ２２ 自動芯出振
れ止めユニット ２３ 枠体 ２４ カム ２８，２９ 爪 ３１ 油圧シリン
ダ ３２ ピストンロッド ３７ 送りねじ ４３ サーボモータ Ｗ 長尺ワーク2 table 9 grindstone 18 spindle motor 14, 16 center 20 arm 22 automatic centering steady rest unit 23 frame 24 cam 28, 29 claw 31 hydraulic cylinder 32 piston rod 37 feed screw 43 servo motor W long workpiece
Claims (2)
変化に応じて前記カムとの接触によって開閉可能な爪が
前記ロッドとともに異径のワークを同心でつかみ得るよ
うに構成された自動芯出振れ止めを円筒研削盤のテーブ
ル上に着脱可能に設け、前記振れ止めの枠体に前記ロッ
ドを摺動させる流体圧駆動手段を設け、前記流体圧駆動
手段による前記ロッドの前進を拘束するように係合して
前記拘束を緩めるように位置決めをするＮＣ制御の送り
ねじ部材を設け、前記振れ止めがワークを把持したとき
送りねじ部材の早送り前進により前記係合を解除するよ
うにしたことを特徴とする長尺ワーク円筒研削用自動芯
出振れ止め装置。1. An automatic structure in which a pawl capable of opening and closing by contact with the cam in response to a change in a sliding position of a rod provided with a symmetrical cam is configured to concentrically grip a workpiece having a different diameter together with the rod. A centering steady rest is removably provided on the table of the cylindrical grinder, and fluid pressure driving means for sliding the rod on the frame body of the steady rest is provided to restrain the advance of the rod by the fluid pressure driving means. A feed screw member of NC control for positioning so as to loosen the restraint by engaging as described above, and when the steady rest grips the work, the engagement is released by the rapid forward advance of the feed screw member. An automatic centering steady rest device for long workpiece cylindrical grinding.
れ止め位置近くにＮＣ制御で砥石を軽く接触させ、ＮＣ
制御の送りねじ部材を手動制御して自動芯出振れ止め開
閉用流体圧駆動手段の前進を止めるように移動位置決め
を行って前記自動芯出振れ止めの把持径を小さくし、前
記ワークの非真円の凸部が前記自動芯出振れ止めに軽く
接触したのを前記砥石から出る間欠的な火花又は研削音
により検知して手動送りを停止し、ＮＣの同期制御によ
る前記砥石の前進と前記自動芯出振れ止めの閉じ勝手の
送りで前記凸部の研削を行い、前記凸部が無くなったの
を主軸モータ入力変化の安定により検知して前記流体圧
駆動手段の前進を拘束するように係合する前記送りねじ
部材を早送り前進して前記係合を解除し、前記流体圧駆
動手段の力で前記自動芯出振れ止めにより前記ワークを
支持して加工プログラムに従って前記長尺ワークの研削
加工を行うことを特徴とする自動芯出振れ止めを用いた
長尺ワークの研削加工方法。2. A grindstone is lightly contacted by NC control in the vicinity of a steady rest position of a long work supported by both centers, and NC
The feed screw member for control is manually controlled to perform movement positioning so as to stop the advance of the automatic centering steady rest opening / closing fluid pressure drive means to reduce the grip diameter of the automatic centering steady rest to reduce the non-trueness of the workpiece. Light contact of the convex portion of the circle with the automatic centering rest is detected by intermittent sparks or grinding noise coming out of the grindstone to stop the manual feeding, and the advancement of the grindstone by the synchronous control of NC and the automatic The convex part is ground by the self-closing feed of the centering steady rest, and the disappearance of the convex part is detected by the stabilization of the change in the spindle motor input to engage so as to restrain the forward movement of the fluid pressure drive means. The feed screw member is fast-forwarded forward to release the engagement, and the work is supported by the automatic centering steady rest by the force of the fluid pressure drive means to grind the long work according to a machining program. That Grinding method of long workpieces using automatic centering steady rest and symptoms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4250515A JPH07102503B2 (en) | 1992-08-26 | 1992-08-26 | Automatic centering steady rest device for long workpiece cylindrical grinding and grinding method using the device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4250515A JPH07102503B2 (en) | 1992-08-26 | 1992-08-26 | Automatic centering steady rest device for long workpiece cylindrical grinding and grinding method using the device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0671560A true JPH0671560A (en) | 1994-03-15 |
| JPH07102503B2 JPH07102503B2 (en) | 1995-11-08 |
Family
ID=17209043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4250515A Expired - Fee Related JPH07102503B2 (en) | 1992-08-26 | 1992-08-26 | Automatic centering steady rest device for long workpiece cylindrical grinding and grinding method using the device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07102503B2 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7174634B2 (en) | 2003-05-29 | 2007-02-13 | Sango Co., Ltd. | Method for producing a fluid treatment device having a honeycomb member |
| CN101898330A (en) * | 2010-07-16 | 2010-12-01 | 湖南宇环同心数控机床有限公司 | Improved centre frame for precision grinding machine |
| JP2011161627A (en) * | 2010-02-08 | 2011-08-25 | Smw Autoblok Spannsysteme Gmbh | Self-centering support |
| CN103522146A (en) * | 2013-09-18 | 2014-01-22 | 浙江威能消防器材股份有限公司 | Aluminum bottle shoulder portion grinding machine |
| CN103600270A (en) * | 2013-12-02 | 2014-02-26 | 三一汽车制造有限公司 | Eccentric shaft machining tool and method |
| CN105058136A (en) * | 2015-08-19 | 2015-11-18 | 英瑞克自动化有限公司 | Eccentric shaft clamping positioner |
| JP2017064876A (en) * | 2015-10-02 | 2017-04-06 | 日立オートモティブシステムズ株式会社 | Manufacturing method for ball screw shaft |
| CN107127590A (en) * | 2017-06-09 | 2017-09-05 | 北京工业大学 | A kind of dexterous three-jaw automatic centring fixture of translation swallow appearance cam mandrel type |
| CN108500652A (en) * | 2018-03-28 | 2018-09-07 | 常州信息职业技术学院 | Centre frame |
| CN110640422A (en) * | 2019-09-24 | 2020-01-03 | 河南欣柯奕舟重工科技有限公司 | Disassembly honing device of hydraulic cylinder |
| CN112222981A (en) * | 2020-09-02 | 2021-01-15 | 中国科学院金属研究所 | Full-automatic post-treatment system for master alloy bars |
| CN117381080A (en) * | 2023-11-24 | 2024-01-12 | 合肥赛里斯智能传动***有限公司 | High-precision ball screw nut compound grinding device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6024517U (en) * | 1983-07-27 | 1985-02-19 | トヨタ自動車株式会社 | Raw material mixing head for reaction injection molding |
| JPH0247164U (en) * | 1988-09-29 | 1990-03-30 | ||
| JPH0319737A (en) * | 1989-06-12 | 1991-01-28 | Dainichi Kinzoku Kogyo Kk | Centering control device for workpiece tightening device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0247164B2 (en) * | 1985-07-12 | 1990-10-18 | Yazaki Corp | DENKISETSUZOKUBAKOTOWAIYAAHAANESUNOKUMITSUKEHOHO |
-
1992
- 1992-08-26 JP JP4250515A patent/JPH07102503B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6024517U (en) * | 1983-07-27 | 1985-02-19 | トヨタ自動車株式会社 | Raw material mixing head for reaction injection molding |
| JPH0247164U (en) * | 1988-09-29 | 1990-03-30 | ||
| JPH0319737A (en) * | 1989-06-12 | 1991-01-28 | Dainichi Kinzoku Kogyo Kk | Centering control device for workpiece tightening device |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7174634B2 (en) | 2003-05-29 | 2007-02-13 | Sango Co., Ltd. | Method for producing a fluid treatment device having a honeycomb member |
| JP2011161627A (en) * | 2010-02-08 | 2011-08-25 | Smw Autoblok Spannsysteme Gmbh | Self-centering support |
| CN101898330A (en) * | 2010-07-16 | 2010-12-01 | 湖南宇环同心数控机床有限公司 | Improved centre frame for precision grinding machine |
| CN103522146A (en) * | 2013-09-18 | 2014-01-22 | 浙江威能消防器材股份有限公司 | Aluminum bottle shoulder portion grinding machine |
| CN103600270A (en) * | 2013-12-02 | 2014-02-26 | 三一汽车制造有限公司 | Eccentric shaft machining tool and method |
| CN105058136A (en) * | 2015-08-19 | 2015-11-18 | 英瑞克自动化有限公司 | Eccentric shaft clamping positioner |
| JP2017064876A (en) * | 2015-10-02 | 2017-04-06 | 日立オートモティブシステムズ株式会社 | Manufacturing method for ball screw shaft |
| CN107127590A (en) * | 2017-06-09 | 2017-09-05 | 北京工业大学 | A kind of dexterous three-jaw automatic centring fixture of translation swallow appearance cam mandrel type |
| CN108500652A (en) * | 2018-03-28 | 2018-09-07 | 常州信息职业技术学院 | Centre frame |
| CN110640422A (en) * | 2019-09-24 | 2020-01-03 | 河南欣柯奕舟重工科技有限公司 | Disassembly honing device of hydraulic cylinder |
| CN112222981A (en) * | 2020-09-02 | 2021-01-15 | 中国科学院金属研究所 | Full-automatic post-treatment system for master alloy bars |
| CN117381080A (en) * | 2023-11-24 | 2024-01-12 | 合肥赛里斯智能传动***有限公司 | High-precision ball screw nut compound grinding device |
| CN117381080B (en) * | 2023-11-24 | 2024-06-11 | 合肥赛里斯智能传动***有限公司 | High-precision ball screw nut compound grinding device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07102503B2 (en) | 1995-11-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |