JPH05345264A - Cylinder grinding machine - Google Patents
Cylinder grinding machineInfo
- Publication number
- JPH05345264A JPH05345264A JP33570691A JP33570691A JPH05345264A JP H05345264 A JPH05345264 A JP H05345264A JP 33570691 A JP33570691 A JP 33570691A JP 33570691 A JP33570691 A JP 33570691A JP H05345264 A JPH05345264 A JP H05345264A
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- fixed
- axial direction
- spindle
- headstock
- 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
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は円筒研削盤に関する。特
に両端部に共に研削個所を有する加工物の加工に適する
円筒研削盤に関する。FIELD OF THE INVENTION The present invention relates to a cylindrical grinder. In particular, the present invention relates to a cylindrical grinder suitable for machining a workpiece having both grinding points at both ends.
【０００２】[0002]
【従来の技術】図１３，１４は従来の円筒研削盤を用い
て加工物Ｗの端部ジャーナル部Ｗａ，Ｗｂを加工する場
合を示す。本例では加工物Ｗはクランク軸である。加工
物Ｗは加工物支持駆動手段としての加工物主軸台５に取
付けた主軸台センタ１１と加工物Ｗを駆動はしないが加
工物を支持する心押台６に取付けた心押台センタ９に支
持され、加工物主軸台５側に設けた加工物主軸１３と同
心で回転駆動される面板１０に固定した加工物回転用治
具１２を加工物Ｗのクランクアームと係合して加工物Ｗ
を回転して、円筒砥石３でもって研削する。研削は先ず
図１３に示すようにジャーナル部Ｗａを心押台センタ９
で支持し、ジャーナル部Ｗｂ側を主軸台センタ１１で支
持して円筒砥石３でジャーナル部Ｗａを研削し、次に加
工物Ｗを外して図１４に示すように加工物Ｗを軸方向を
１８０度反転してジャーナル部Ｗａ側を主軸台センタ１
１で支持し、ジャーナル部Ｗｂ側を心押台センタ９で支
持してジャーナル部Ｗｂを研削していた。尚、砥石は円
筒皿形砥石（砥石修正は円筒形で作用は円筒砥石と同
じ）成形砥石、アンギュラー砥石、アンギュラー成型砥
石等を用いる場合がある。13 and 14 show a case where end journal portions Wa and Wb of a workpiece W are machined by using a conventional cylindrical grinder. In this example, the workpiece W is a crankshaft. The workpiece W is attached to a headstock center 11 attached to the workpiece headstock 5 as a workpiece support driving means and to a tailstock center 9 attached to a tailstock 6 that does not drive the workpiece W but supports the workpiece. A workpiece rotating jig 12 fixed to a face plate 10 which is supported and is driven to rotate concentrically with the workpiece spindle 13 provided on the workpiece spindle head 5 side is engaged with a crank arm of the workpiece W to engage the workpiece W.
Is rotated and is ground with the cylindrical grindstone 3. For the grinding, first, as shown in FIG. 13, the journal portion Wa is moved to the tailstock center 9
14, the journal portion Wb side is supported by the headstock center 11 and the journal portion Wa is ground by the cylindrical grindstone 3, then the workpiece W is removed, and as shown in FIG. And flip the journal part Wa side to the headstock center 1
1, the journal portion Wb side is supported by the tailstock center 9, and the journal portion Wb is ground. In addition, as the grindstone, a cylindrical dish-shaped grindstone (correction of the grindstone is cylindrical and the function is the same as that of the cylindrical grindstone), a grindstone, an angular grindstone, an angular molded grindstone or the like may be used.
【０００３】[0003]
【発明が解決しようとする課題】従来の円筒研削盤の場
合には加工物端部の研削は上述のように加工物を外して
軸方向を反対方向にして入替取付け替えねばならない。
そのため加工物の取付け替の時間が多大にかかり、加工
物を取付け替するため、加工物の支持精度にばらつきが
出て加工精度を低下させるおそれがある。そこで加工物
主軸のセンタ穴に爪ドライバを挿入し加工物端面に爪ド
ライバーの爪を押圧して回転力を伝える方法もあるが加
工物に剛性がある場合を除き採用出来なかった。In the case of the conventional cylindrical grinding machine, the grinding of the end portion of the work piece must be carried out by removing the work piece and changing the axial direction to the opposite direction as described above.
Therefore, it takes a lot of time to replace the work piece, and because the work piece is replaced, the support accuracy of the work piece varies, which may reduce the work accuracy. Therefore, there is also a method of inserting a claw driver into the center hole of the work spindle and pressing the claw of the claw driver to the end surface of the work to transmit the rotational force, but this cannot be adopted unless the work is rigid.
【０００４】特にクランク軸のように両端を軸方向に対
向して押圧すると変形し易い加工物には用いられない。Especially, it is not used for a work such as a crankshaft which is easily deformed when both ends are pressed in the axial direction so as to face each other.
【０００５】本発明は加工物を取付けたまま加工物の両
端部を研削可能な研削盤を提供することを目的とする。An object of the present invention is to provide a grinder capable of grinding both ends of a work piece with the work piece attached.
【０００６】[0006]
【課題を解決するための手段】本発明は対向する加工物
主軸台と心押台からなる二つの加工物支持駆動手段を備
えた円筒研削盤において、二つの加工物支持駆動手段は
同構成であって、夫々の本体に固定されたスリーブに加
工物駆動具支持部材が軸方向移動自在に嵌入し、該加工
物駆動具支持部材を軸方向に移動させる駆動装置を備
え、加工物駆動具支持部材中心に夫々の本体に対して固
定又は軸方向移動自在に加工物主軸を支持すると共に該
加工物主軸を軸方向に移動させる駆動装置を備え、スリ
ーブ前端部に回転自在で回転駆動装置に連結された面板
を固定し、加工物駆動具支持部材前端部に回転自在に加
工物回転用治具を固定し、加工物回転用治具と面板とを
回転方向に剛で、加工物主軸の軸方向に伸縮自在な伸縮
接手で結合したことを特徴とする円筒研削盤である。SUMMARY OF THE INVENTION The present invention is a cylindrical grinder provided with two workpiece support driving means consisting of a workpiece headstock and a tailstock which are opposed to each other. The two workpiece support driving means have the same structure. A workpiece driving tool support member is fitted in a sleeve fixed to each main body so as to be movable in the axial direction, and a driving device for moving the workpiece driving tool support member in the axial direction is provided. It is provided with a drive device for supporting the workpiece main spindle in the center of the member so as to be fixed or movable in the axial direction with respect to each main body and moving the workpiece main spindle in the axial direction, and is rotatably connected to the rotary drive device at the sleeve front end portion. Fixed face plate, rotatably fix the workpiece rotation jig to the front end of the workpiece driving tool support member, and make the workpiece rotation jig and the face plate rigid in the rotation direction, and the axis of the workpiece spindle. Connected with a flexible joint that can stretch in any direction A cylindrical grinding machine, wherein.
【０００７】[0007]
【実施例】以下本発明の実施例を図面により説明する。
図１、図２は本発明の実施例の加工物の主軸台５の断面
側面図を示し、図１は前部、図２は後部を分割表示した
ものである。尚、心押台６は加工物主軸台５と同構成の
加工物支持駆動手段を備えているので加工物主軸台５の
みの説明を行う。図１において、スリーブ２０は加工物
主軸台本体２１の円筒穴に嵌入し、スリーブ２０のフラ
ンジ２０ａは加工物主軸台本体２１の前端面の凹部２１
ａにボルト２０ｂにより固定されている。スリーブ２０
の内周には軸方向移動方向自在に加工物駆動具支持部材
としてのクイル１が嵌入している。又、加工物主軸１３
にクイル１が軸方向移動自在に嵌入している。加工物Ｗ
は不図示の心押台センタ９と加工物主軸台５の加工物主
軸１３のセンタ穴に嵌合した主軸台センタ１１に支持さ
れていて、加工物回転用治具１２と係合されている。ク
イル１の前端にフランジ１４を後側に有する中空円筒形
の支軸１５がフランジ１４のインロー１６を嵌め合せ固
定されている。支軸１５に玉軸受１７を介し、回転自在
に加工物回転用治具１２を固定した取付輪１８が固定さ
れていて、取付輪１８は後述する伸縮接手１９の前端に
固定され、伸縮接手１９の後端は面板１０の前側面に固
定されている。カラー２２，２３、玉軸受１７が支軸１
５に嵌め込まれ、支軸１５のおねじにナット２４をねじ
込むことにより、玉軸受１７の内輪、カラー２２，２３
が支軸１５に固定されている。Embodiments of the present invention will be described below with reference to the drawings.
1 and 2 are sectional side views of a headstock 5 of a workpiece according to an embodiment of the present invention, in which FIG. 1 is a front view and FIG. 2 is a rear view. Since the tailstock 6 is provided with the workpiece support driving means having the same structure as the workpiece headstock 5, only the workpiece headstock 5 will be described. In FIG. 1, a sleeve 20 is fitted in a cylindrical hole of a workpiece headstock main body 21, and a flange 20 a of the sleeve 20 is a recess 21 on a front end surface of the workpiece headstock main body 21.
It is fixed to a by a bolt 20b. Sleeve 20
A quill 1 as a workpiece driving tool support member is fitted in the inner periphery of the rotatably axially movable direction. Also, the work spindle 13
The quill 1 is fitted in the shaft so as to be movable in the axial direction. Workpiece W
Is supported by a tailstock center 9 (not shown) and a headstock center 11 fitted in a center hole of the work spindle 13 of the work headstock 5, and is engaged with a workpiece rotating jig 12. .. A hollow cylindrical support shaft 15 having a flange 14 on the rear side is fitted and fixed to a front end of the quill 1 with a spigot 16 of the flange 14. A mounting ring 18 to which a workpiece rotating jig 12 is rotatably fixed is fixed to a support shaft 15 via a ball bearing 17, and the mounting ring 18 is fixed to a front end of an expansion / contraction joint 19 which will be described later. The rear end is fixed to the front side surface of the face plate 10. The collars 22 and 23 and the ball bearing 17 are the support shafts 1.
5 and the nut 24 is screwed into the male screw of the support shaft 15 to form the inner ring of the ball bearing 17, the collars 22 and 23.
Is fixed to the support shaft 15.
【０００８】取付輪１８の後側に固定されたカバー２８
は玉軸受１７の外輪を固定し、フランジ１４との間を軸
封している。支軸１５のフランジ１４とスリーブ２０の
先端に固定したシールカバー２５との間に蛇腹２９が配
されている。A cover 28 fixed to the rear side of the mounting wheel 18.
Fixes the outer ring of the ball bearing 17 and seals the space between the ball bearing 17 and the flange 14. A bellows 29 is arranged between the flange 14 of the support shaft 15 and the seal cover 25 fixed to the tip of the sleeve 20.
【０００９】プーリ３０は玉軸受３１を介して、スリー
ブ２０の外周に回転自在に且つ軸方向移動しないように
固定されている。プーリ３０に固定した玉軸受３１のカ
バー３０ａを介して面板１０がプーリ３０に固定されて
いる。The pulley 30 is fixed to the outer periphery of the sleeve 20 via a ball bearing 31 so as to be rotatable and not to move in the axial direction. The face plate 10 is fixed to the pulley 30 via the cover 30 a of the ball bearing 31 fixed to the pulley 30.
【００１０】スリーブ２０と平行なワーク主軸台本体２
１の穴に嵌入した円筒形の軸受箱３３の内側両端に玉軸
受３４，３５を介して回転自在に固定されたプーリ軸３
６の前、後端部にプーリ３７，３８が固定されている。
プーリ３７と３０とは対向位置にあり、不図示のＶベル
トが巻掛けられている。プーリ３８と加工物主軸台本体
２１に設けた加工物Ｗを回転駆動する不図示の加工物回
転駆動モータのプーリとの間に不図示のベルトが巻掛け
られている。Workpiece headstock body 2 parallel to sleeve 20
Pulley shaft 3 rotatably fixed to the inner ends of a cylindrical bearing box 33 fitted in the first hole through ball bearings 34 and 35.
Pulleys 37 and 38 are fixed to the front and rear ends of No. 6, respectively.
The pulleys 37 and 30 are at opposite positions, and a V-belt (not shown) is wound around them. A belt (not shown) is wound between the pulley 38 and a pulley of a workpiece rotation drive motor (not shown) that rotationally drives the workpiece W provided on the workpiece headstock main body 21.
【００１１】加工物主軸１３は図２のように、小径部の
後端部におねじ３９が設けてある。As shown in FIG. 2, the work spindle 13 is provided with a screw 39 at the rear end portion of the small diameter portion.
【００１２】図１のＡ−Ａ拡大断面図の図３に示すよう
に、クイル１の軸方向中間部に軸方向に設けられたキー
溝４０に係合するキー４１がスリーブ２０に固定されて
いる。図５に示すように同様に加工物主軸１３の軸方向
に設けたキー溝１３ａに係合するキー８がスリーブ２０
に固定されている。As shown in FIG. 3 of the AA enlarged sectional view of FIG. 1, a key 41 engaging with a key groove 40 axially provided at an axially intermediate portion of the quill 1 is fixed to the sleeve 20. There is. As shown in FIG. 5, similarly, the key 8 that engages with the key groove 13 a provided in the axial direction of the workpiece spindle 13 is the sleeve 20.
It is fixed to.
【００１３】図１のＢ−Ｂ拡大断面図の図４に示すよう
に、クイル１固定用油圧シリンダ３２のピストンロッド
４２は加工物主軸台本体２１に滑入して更にスリーブ２
０を挿通し、クイル１を押え付けるように配されてい
る。同様に図２のＣ−Ｃ断面図の図５に示すように主軸
固定用油圧シリンダ５７のピストンロッド６１はスリー
ブ２０に滑入して更にスリーブ２０を挿通し、加工物主
軸１３を押え付けるように配されている。As shown in FIG. 4 which is an enlarged sectional view taken along the line BB of FIG. 1, the piston rod 42 of the hydraulic cylinder 32 for fixing the quill 1 is slid into the workpiece headstock main body 21 and further sleeve 2.
It is arranged so that 0 is inserted and quill 1 is pressed down. Similarly, as shown in FIG. 5 of the sectional view taken along the line CC in FIG. 2, the piston rod 61 of the hydraulic cylinder 57 for fixing the main spindle slides into the sleeve 20 and further inserts the sleeve 20 so as to press the workpiece main spindle 13. It is located in.
【００１４】スリーブ２０の後端面のインロー４３に歯
車箱４４が嵌入固定されている。おねじ３９にねじ込ま
れためねじ４５を有する中空回転軸４６の前端のフラン
ジ４７と歯車箱４４内側のフランジ４８の間にスラスト
ベアリング４９を配し、フランジ４８と中空回転軸４６
にキー５０でキー止めされたウォーム歯車５１との間に
ニードルベアリング５２とスライドベアリング５３を配
し、ウォーム歯車５１の後側にカラー５４と玉軸受５５
を配して夫々中空回転軸４６に嵌合し、中空回転軸４６
のおねじにナット５６をねじ込み、中空回転軸４６を歯
車箱４４に回転自在に且つ軸方向移動しないように固定
している。ウォーム歯車５１にはウォーム５８が直交し
て噛み合い、歯車箱４４に回転自在に且つ軸方向移動し
ないように固定されている。A gear box 44 is fitted and fixed to a spigot 43 on the rear end surface of the sleeve 20. A thrust bearing 49 is arranged between a flange 47 at the front end of a hollow rotary shaft 46 having a screw 45 for being screwed into the male screw 39 and a flange 48 inside the gear box 44, and the flange 48 and the hollow rotary shaft 46 are arranged.
The needle bearing 52 and the slide bearing 53 are arranged between the worm gear 51 keyed by the key 50 and the collar 54 and the ball bearing 55 on the rear side of the worm gear 51.
Are arranged and fitted into the hollow rotary shafts 46, respectively.
A nut 56 is screwed into the male screw, and the hollow rotary shaft 46 is fixed to the gear box 44 so as to be rotatable and not to move in the axial direction. A worm 58 meshes orthogonally with the worm gear 51 and is fixed to the gear box 44 so as to be rotatable and not to move in the axial direction.
【００１５】玉軸受５５の外輪を収容して固定する軸受
ブラケット４４ａは歯車箱４４に嵌入しボルトで固定さ
れていて、軸受ブラケット４４ａに蓋４４ｂが嵌入しボ
ルトで固定し、玉軸受５５の軸方向移動をとめている。
ウォーム５８は軸方向移動しないように軸承され、モー
タに連結されている（図示されない）。The bearing bracket 44a for accommodating and fixing the outer ring of the ball bearing 55 is fitted into the gear box 44 and fixed with bolts, and the lid 44b is fitted into the bearing bracket 44a and fixed with bolts. The direction has stopped.
The worm 58 is supported so as not to move in the axial direction and is connected to a motor (not shown).
【００１６】図１に示すように加工物主軸台本体２１に
軸承されたピニオン７はクイル１の外周の軸方向に設け
たラック歯とかみ合っており、ピニオン７は図示されな
い回転駆動機に連結されている。As shown in FIG. 1, the pinion 7 supported by the work headstock main body 21 meshes with rack teeth provided on the outer periphery of the quill 1 in the axial direction, and the pinion 7 is connected to a rotary drive machine (not shown). ing.
【００１７】図６は伸縮接手の側面断面図、図７は図６
の側面図、図８は図６の正面図である。面板１０のフラ
ンジ１０ａは正面から見て角面取りした正方形で、該正
方形の各辺に沿って前部側に固定した端金具６２は前部
側に３個の突起６３，６４，６５があり、突起６４，６
５にその突起６４，６５のある前記面板１０の正方形の
辺に平行に固定されたガイド棒６６に沿ってがた無く移
動する滑り子６７を設けてある。FIG. 6 is a side sectional view of the expansion joint, and FIG. 7 is FIG.
FIG. 8 is a front view of FIG. The flange 10a of the face plate 10 is a square chamfered from the front, and the end fitting 62 fixed to the front side along each side of the square has three protrusions 63, 64, 65 on the front side. Protrusions 64, 6
5 is provided with a slider 67 that moves without rattle along a guide rod 66 fixed parallel to the square side of the face plate 10 having the protrusions 64 and 65.
【００１８】突起６３と滑り子６７との外側面に垂直に
固定したピン７０，７１により夫々複数の平行なリンク
６８、リンク６８に交叉する複数の平行なリンク６９の
内の夫々一つに一端を枢着する。ピン７０，７１の中心
は面板１０に平行な同一平面上にあるようにし、該リン
ク６８，６９は中央をピン７２により互いに枢着し、他
端は夫々他のリンク６９，６８の一端とピン７４，７３
により枢着する。リンク６８，６９の両端の枢着点の間
隔は２Ｌで、中央の枢着点と該リンク６８，６９の両端
の枢着点とは夫々間隔Ｌを有する。One end of each of a plurality of parallel links 68 and a plurality of parallel links 69 intersecting with the links 68 by pins 70 and 71 fixed perpendicularly to the outer surfaces of the protrusion 63 and the slider 67. To pivot. The centers of the pins 70 and 71 should be on the same plane parallel to the face plate 10, the links 68 and 69 are pivotally attached to each other at the centers by the pins 72, and the other ends are pinned to one ends of the other links 69 and 68, respectively. 74,73
To pivot. The distance between the pivot points at both ends of the links 68, 69 is 2L, and the center pivot point and the pivot points at both ends of the links 68, 69 have a distance L, respectively.
【００１９】上記の結合を繰返し、最後のリンク６８，
６９の端部枢着点は上記端金具６２と同形の端金具６２
の突起６３とこの端金具６２に取付けた滑り子６７の側
面にピン７１，７０により夫々枢着されている。伸縮継
手１９の前端のピン７０，７１と後端のピン７０，７１
の中心を含む夫々の平面は平行で、各リンクの同じ側の
端部を枢着しているピン７０，７３・・・７３，７０お
よびピン７１，７４・・・７４，７１を結ぶ線は滑り子
６７，６７が移動しても、ワーク主軸に平行であるよう
に保持される。The above connection is repeated until the last link 68,
The end pivot point of 69 is an end fitting 62 of the same shape as the end fitting 62.
The projections 63 and the side surfaces of the sliders 67 attached to the end fittings 62 are pivoted by pins 71 and 70, respectively. The front end pins 70, 71 and the rear end pins 70, 71 of the expansion joint 19
The planes including the centers of are parallel and the lines connecting the pins 70, 73 ... 73, 70 and the pins 71, 74 ... 74, 71 that pivotally attach the ends on the same side of each link are Even if the sliders 67, 67 move, they are held so as to be parallel to the work main axis.
【００２０】即ち、伸縮接手１９は回転方向に対しては
剛で、主軸１３の軸方向には伸縮自在である。That is, the expansion joint 19 is rigid in the rotational direction and is expandable in the axial direction of the main shaft 13.
【００２１】このような伸縮接手１９は加工物主軸１３
前端部分を囲繞して四個所に配されている。Such a telescopic joint 19 is used for the work spindle 13
It is arranged in four places, surrounding the front end.
【００２２】尚、伸縮接手１９としては図９に示すよう
に面板１０に中空のスプライン継手７５を固定し、スプ
ライン継手７５と係合するスプライン軸７６を取付輪１
８に固定してもよい。或は図１０に示すように加工物主
軸１３と平行で面板１０に一端を固定されたガイドパー
ク７７を取付輪１８に設けた穴７８に滑入するようにし
てもよい。As the expansion joint 19, as shown in FIG. 9, a hollow spline joint 75 is fixed to the face plate 10, and a spline shaft 76 engaging with the spline joint 75 is attached to the mounting wheel 1.
It may be fixed at 8. Alternatively, as shown in FIG. 10, a guide park 77 parallel to the workpiece spindle 13 and fixed at one end to the face plate 10 may be slid into a hole 78 formed in the mounting wheel 18.
【００２３】上述において加工物主軸台５、心押台６は
夫々面板１０を一定位置に停止させる主軸定位置停止装
置を備えている。In the above description, the work headstock 5 and the tailstock 6 are each provided with a main spindle fixed position stopping device for stopping the face plate 10 at a fixed position.
【００２４】次に作用を述べる。Next, the operation will be described.
【００２５】例えば加工物Ｗが内燃機関用のクランクで
両端部のエンドジャーナルＷａ，Ｗｂを研削する場合を
図１４を借りて説明する。For example, a case where the workpiece W is a crank for an internal combustion engine and the end journals Wa and Wb at both ends are ground will be described with reference to FIG.
【００２６】前回加工後に加工物Ｗが機上から去った状
態では加工物主軸台５と心押台６のセンタ９，１１間は
加工物Ｗを取外した状態であり、その分だけ何れかの加
工物主軸１３は後退位置にあり、何れかのセンタ９又は
１１のみは不動として他方のセンタのみ進退するように
して、センタ不動側の加工物主軸１３は常に軸方向には
不動である。クイル１は夫々最も後退した位置に有り、
加工物回転用治具１２は図１に二点鎖線で示す位置まで
後退している。今加工物主軸台５側の加工物主軸１３を
不動として作用を説明する。When the workpiece W has left the machine after the previous machining, the workpiece W has been removed between the centers 9 and 11 of the workpiece headstock 5 and the tailstock 6. The workpiece spindle 13 is in the retracted position, and only one of the centers 9 or 11 is immovable and only the other center is moved forward and backward, so that the workpiece spindle 13 on the center immobile side is always immovable in the axial direction. Quill 1 is in the most retracted position,
The workpiece rotating jig 12 is retracted to the position shown by the chain double-dashed line in FIG. Now, the operation will be described with the workpiece spindle 13 on the workpiece spindle stock 5 side being immovable.
【００２７】オートローダ等で加工物Ｗが両センタ９，
１１と同心上に持込まれると、オートローダは加工物Ｗ
を軸方向にシフトして加工物主軸台側のセンタ１１側へ
移動して加工物Ｗのセンタ穴は該センタ１１に嵌合す
る。該センタ穴への該センタ１１の嵌入の確認の信号に
より、心押台側の加工物主軸送り駆動モータが回転を始
め、ウォーム５８が回転し、ウォーム歯車５１に回転を
伝えキー５０を介し中空回転軸４６が回転する。中空回
転軸４６が回転すると加工物主軸１３はキー８により回
転出来ないため、ねじ対偶４５，３９を介して心押台側
の加工物主軸１３は加工物主軸台５へ向って軸方向に移
動し、加工物Ｗの他のセンタ穴は心押台側の加工物主軸
台５のセンタ９へ嵌入し、加工物Ｗは両センタ９，１１
で支持され、オートローダは去る。The workpiece W is transferred to both centers 9 by an autoloader or the like.
When brought concentrically with 11, the autoloader will
Is shifted in the axial direction to move to the center 11 side of the work headstock side, and the center hole of the work W is fitted into the center 11. In response to a signal confirming that the center 11 is fitted in the center hole, the work spindle feed drive motor on the tailstock side starts to rotate, the worm 58 rotates, and the rotation is transmitted to the worm gear 51 through the key 50. The rotating shaft 46 rotates. When the hollow rotary shaft 46 rotates, the workpiece spindle 13 cannot be rotated by the key 8. Therefore, the workpiece spindle 13 on the tailstock side moves axially toward the workpiece spindle stock 5 via the screw pairs 45 and 39. Then, the other center hole of the workpiece W is fitted into the center 9 of the workpiece headstock 5 on the tailstock side.
Supported by, the autoloader leaves.
【００２８】この間心押台側の加工物主軸１３の出入り
にかかわらず、支軸１５（図１、図１５）は不動であ
り、取付輪１８、加工物回転用治具１２は前進しない。
次に加工物主軸台側のピニオン７が回転駆動され、クイ
ル１は前進する。支軸１５に回転自在に取付けられた取
付輪１８に固定された加工物回転用治具１２は該クイル
１と共に前進して加工物Ｗのクランクアームと係合す
る。同時に伸縮継手１９は伸長する。During this time, regardless of whether the work spindle 13 on the tailstock side comes in or out, the support shaft 15 (FIGS. 1 and 15) does not move, and the mounting wheel 18 and the work rotating jig 12 do not move forward.
Next, the pinion 7 on the workpiece headstock side is rotationally driven, and the quill 1 advances. The workpiece rotating jig 12 fixed to a mounting wheel 18 rotatably mounted on the support shaft 15 advances with the quill 1 and engages with the crank arm of the workpiece W. At the same time, the expansion joint 19 extends.
【００２９】尚、カラー２２に固定されたワークレスト
２６をもちいる場合は以下のとおりである。加工物Ｗが
搬入されると加工物主軸台側ワークレストの受金２７と
心押台側のワークレストの受金２７上に置かれる。オー
トローダが加工物Ｗを開放した信号により、加工物主軸
送り駆動モータは同方向に付勢され加工物主軸台側の加
工物主軸１３が前進してセンタ１１は加工物Ｗのセンタ
穴に入り、つづいて加工物Ｗを心押台側へ押し、加工物
Ｗをワークレストの受金２７上を滑らせて移行させ、不
図示のマイクロスイッチ或は数値制御装置により加工物
Ｗを軸方向一定位置に停止させる。加工物主軸台側の加
工物主軸１３の位置が決ると、加工物主軸台側の油圧シ
リンダ５７（図５）を付勢して、ピストンロッド６１に
より加工物主軸台側の加工物主軸１３をスリーブ２０に
固定する。次に同様にして心押台側のセンタ９が前進し
て加工物のセンタ穴に嵌入し、加工物Ｗを支持し、加工
物主軸１３を固定する。The case where the work rest 26 fixed to the collar 22 is used is as follows. When the workpiece W is carried in, it is placed on the work holder head-side work rest receiving metal 27 and the tailstock-side work rest receiving metal 27. In response to a signal that the autoloader has opened the workpiece W, the workpiece spindle feed drive motor is urged in the same direction, the workpiece spindle 13 on the workpiece headstock side advances, and the center 11 enters the center hole of the workpiece W, Subsequently, the workpiece W is pushed to the tailstock side, and the workpiece W is slid on the work rest bracket 27 to be transferred, and the workpiece W is axially positioned at a constant position by a microswitch or a numerical controller (not shown). To stop. When the position of the workpiece spindle 13 on the workpiece spindle head side is determined, the hydraulic cylinder 57 (FIG. 5) on the workpiece spindle headstock side is urged to move the workpiece spindle head 13 side on the workpiece spindle headstock side by the piston rod 61. It is fixed to the sleeve 20. Similarly, the center 9 on the tailstock side is advanced to fit into the center hole of the workpiece to support the workpiece W and fix the workpiece spindle 13.
【００３０】上記オートローダ等が加工物Ｗを軸方向に
シフトさせる場合及び加工物Ｗをワークレスト２６を用
いて取付ける場合の何れの場合も次に加工物主軸台５側
のピニオン７は回転し、クイル１は前進する。クイル１
の移動に伴ない、加工物回転用治具１２はクイル１に随
伴し移動するので加工物Ｗのクランクアームに対して回
転方向に係合する。そして面板１０と取付輪１８とを結
合する回転方向に剛で、加工物主軸１３の軸方向に伸縮
自在な伸縮接手１９は伸長する。その後、加工物主軸台
及び心押台側ともクイル１固定用の油圧シリンダ３２
（図４）が前進付勢されピストンロッド４２は前進して
クイル１を固定する。In both cases where the above-mentioned autoloader shifts the workpiece W in the axial direction and when the workpiece W is mounted using the workrest 26, the pinion 7 on the workpiece headstock 5 side rotates next, Quill 1 moves forward. Quill 1
The workpiece rotating jig 12 moves along with the quill 1 as a result of the movement, so that the workpiece rotating jig 12 engages with the crank arm of the workpiece W in the rotational direction. Then, the elastic joint 19 which is rigid in the rotational direction connecting the face plate 10 and the mounting wheel 18 and is expandable and contractable in the axial direction of the workpiece main shaft 13 extends. After that, the hydraulic cylinder 32 for fixing the quill 1 on both the work headstock and tailstock side.
(FIG. 4) is urged forward, and the piston rod 42 moves forward to fix the quill 1.
【００３１】次に、加工物主軸台側の不図示の加工物回
転駆動モータが回転して、図１に示すプーリ３８が回転
し、プーリ軸３６とプーリ３７が回転し不図示のベルト
を介してプーリ３０が回転する。カバー３０ａ、面板１
０、伸縮接手１９、取付輪１８を介して、加工物回転用
治具１２は加工物Ｗを回転する。Next, the workpiece rotation drive motor (not shown) on the workpiece headstock side rotates, the pulley 38 shown in FIG. 1 rotates, the pulley shaft 36 and the pulley 37 rotate, and a belt (not shown) is passed between them. And the pulley 30 rotates. Cover 30a, face plate 1
The work piece rotating jig 12 rotates the work piece W via 0, the expansion joint 19, and the mounting ring 18.
【００３２】一方、図示されない砥石台は砥石３を回転
せしめると共に加工物Ｗの心押台側の端部ジャーナル部
Ｗｂに近接し、不図示の制御装置の指示の通り加工物Ｗ
の該ジャーナル部Ｗｂを研削する。On the other hand, a grindstone stand (not shown) rotates the grindstone 3 and is close to the tail journal side end journal portion Wb of the workpiece W, and the workpiece W is instructed by a controller (not shown).
The journal portion Wb is ground.
【００３３】皿形円筒砥石を用いている場合は心押台側
に近いエンドジャーナルＷｂの加工位置の加工が終れ
ば、砥石台が加工物Ｗから半径方向に遠ざかり、図示さ
れないテーブルを数値制御により送って加工物Ｗを軸方
向に移動する。一方、加工物主軸台側の加工物主軸１３
は回転方向に関し定位置にて停止し加工物Ｗの回転は止
る。ここで、加工物主軸台側のクイル１固定用の油圧シ
リンダ３２は後退方向に付勢され、そのピストンロッド
４２はクイル１の押圧を解除し、加工物主軸台側のピニ
オン７は前述と逆方向に付勢されて、クイル１は後退
し、加工物回転用治具１２は後退する。後退位置で該治
具１２先端は加工物Ｗの一端部ジャーナル部Ｗａ側端部
より軸方向に加工物Ｗから離れている。同時に心押台側
のクイル１固定用の油圧シリンダ３２は解除され心押台
側のピニオン７は回転してクイル１は前進し、加工物回
転用治具１２は前進して加工物Ｗの端部ジャーナル部Ｗ
ｂ側のクランクアームと係合し、心押台側のクイル固定
用の油圧シリンダ３２は駆動されクイル１は固定され
る。ここで、心押台側のプーリ３８は回転付勢され、加
工物回転用治具１２を回転し、加工物Ｗに回転を与え
る。ついで砥石３は前記テーブルの移動により端部ジャ
ーナル部Ｗａを加工する位置へ送られて加工物Ｗの端部
ジャーナル部Ｗａを研削する。研削終了後心押台側のプ
ーリ３８は停止して加工物回転用治具１２は定位置に停
止する。そして、加工物主軸台及び心押台側のクイル固
定用の油圧シリンダ３２、心押台側の加工物主軸固定用
の油圧シリンダ５７は消勢され、これらのピストンロッ
ド４２，６１は後退する。When a dish-shaped cylindrical grindstone is used, when the machining of the end journal Wb close to the tailstock side is finished, the grindstone is moved away from the workpiece W in the radial direction, and a table (not shown) is numerically controlled. The workpiece W is sent to move the workpiece W in the axial direction. On the other hand, the work spindle 13 on the work spindle stock side
Stops at a fixed position in the rotation direction and the rotation of the workpiece W stops. Here, the hydraulic cylinder 32 for fixing the quill 1 on the workpiece headstock side is biased in the backward direction, the piston rod 42 releases the pressing of the quill 1, and the pinion 7 on the workpiece headstock side reverses the above. By being biased in the direction, the quill 1 retracts, and the workpiece rotating jig 12 retracts. At the retracted position, the tip of the jig 12 is axially distant from the workpiece W from one end of the workpiece W on the side of the journal portion Wa. At the same time, the hydraulic cylinder 32 for fixing the quill 1 on the tailstock side is released, the pinion 7 on the tailstock side rotates, the quill 1 advances, and the workpiece rotation jig 12 advances to the end of the workpiece W. Department Journal Department W
By engaging the crank arm on the b side, the hydraulic cylinder 32 for fixing the quill on the tailstock side is driven and the quill 1 is fixed. Here, the pulley 38 on the tailstock side is rotationally biased to rotate the jig 12 for rotating the workpiece to rotate the workpiece W. Then, the grindstone 3 is moved to a position where the end journal portion Wa is processed by the movement of the table, and grinds the end journal portion Wa of the workpiece W. After the grinding is completed, the pulley 38 on the tailstock side is stopped and the workpiece rotating jig 12 is stopped at a fixed position. Then, the hydraulic cylinder 32 for fixing the quill on the workpiece headstock and tailstock side, and the hydraulic cylinder 57 for fixing the workpiece main shaft on the tailstock side are deenergized, and these piston rods 42, 61 retract.
【００３４】オートローダが進入して加工物Ｗを把握す
ると心押台側の主軸送り駆動モータが駆動されてウオー
ム５８が回転し、心押台側の加工物主軸１３は後退して
センタ９は加工物Ｗから離れ、その後オートローダは心
押台６側へシフトし、加工物Ｗの加工物主軸台５側のセ
ンタ１１と加工物Ｗは離れる。そして加工物Ｗはオート
ローダにより搬出される。尚、ワークレスト２６を用い
る場合はオートローダ等で加工物Ｗを把握した後に各加
工物主軸１３を後退して加工物Ｗを取り外す。When the autoloader enters and grasps the workpiece W, the spindle feed drive motor on the tailstock side is driven to rotate the worm 58, the workpiece spindle 13 on the tailstock side retracts, and the center 9 is machined. After leaving the workpiece W, the autoloader shifts to the tailstock 6 side, and the center W of the workpiece W on the workpiece headstock 5 side and the workpiece W separate. Then, the workpiece W is carried out by the autoloader. When the work rest 26 is used, after grasping the workpiece W by an autoloader or the like, each workpiece spindle 13 is retracted to remove the workpiece W.
【００３５】実施例は皿形円筒砥石を用いた通常の円筒
研削盤におけるものであるが、図１１，１２に示すよう
に同じ砥石軸８０の両端にアンギュラー砥石３ａ，３ｂ
を設けた砥石台２をテーブル４の移動方向と交叉方向の
案内８１ａを上面に持つ前後スライドベース８１に摺動
するように係合してスライドベース８１に沿って切込み
駆動されるようにし、スライドベース８１をベッド８２
に回動できるように垂直な枢軸８３でもって取付けても
よい。かくすると図１１に実線に示すようにアンギュラ
ー砥石３ａでエンドジャーナルＷａの研削が出来、アン
ギュラー砥石３ｂでエンドジャーナルＷｂの研削が可能
であり、円筒面及び端面を精度・面粗度共に良く研削出
来る。The embodiment is for a normal cylindrical grinder using a dish-shaped cylindrical grindstone, but as shown in FIGS. 11 and 12, angular grindstones 3a and 3b are provided on both ends of the same grindstone shaft 80.
The whetstone base 2 provided with is slidably engaged with a front and rear slide base 81 having a guide 81a in a direction intersecting with the moving direction of the table 4 on its upper surface so as to be driven for cutting along the slide base 81. Base 81 and bed 82
It may be mounted by means of a vertical pivot 83 so that it can be rotated. Thus, as shown by the solid line in FIG. 11, the end grindstone Wa can be ground with the angular grindstone 3a, and the end journal Wb can be grinded with the angular grindstone 3b, and the cylindrical surface and the end surface can be ground with good precision and surface roughness. ..
【００３６】実施例に示した加工物Ｗの研削方法は一作
用例を示すものであり、本研削盤の構成に従って他の作
業方法が可能なことは言及するまでもない処である。It is needless to say that the method of grinding the workpiece W shown in the embodiment shows one working example, and other working methods are possible according to the structure of the present grinding machine.
【００３７】実施例は加工物主軸台、心押台側の加工物
主軸を共に進退可能としてあるがこれは何れか又は両者
を固定したものとしておいて心押台側、加工物主軸台側
の加工物主軸台本体の何れか又は両方共をテーブル上で
軸方向に移動自在としてその移動により、センタ９，１
１を移動してもよく、これによっても目的は達成され
る。この場合は図２に示す加工物主軸１３進退用の装置
は不要であり、又加工物主軸１３は後端部において加工
物主軸台、心押台の本体と固定する。In the embodiment, both the work headstock and the workstock spindle on the tailstock side can be moved back and forth, but either one or both of them can be fixed, and the tailstock side and the workstock headstock side can be moved. Either or both of the workpiece headstock main bodies can be moved in the axial direction on the table to move the centers 9 and 1
1 may be moved, which also achieves the purpose. In this case, the device for advancing and retracting the work spindle 13 shown in FIG. 2 is not necessary, and the work spindle 13 is fixed to the main body of the work spindle stock and tailstock at the rear end.
【００３８】[0038]
【発明の効果】本発明は対向する加工物主軸台側及び心
押台側の加工物を支持する夫々の加工物主軸に対して、
加工物回転用治具の軸方向位置を変えることが出来るよ
うにしたため、加工物を加工物主軸台側及び心押台側の
何れからも加工物の駆動が可能となり、加工物の両端部
を加工物を軸方向で反転することなく加工でき、加工時
間の短縮、加工精度の向上に寄与する。According to the present invention, the respective workpiece spindles supporting the workpieces on the workpiece headstock side and the tailstock side facing each other,
Since the axial position of the workpiece rotating jig can be changed, the workpiece can be driven from both the workpiece headstock side and tailstock side, and both ends of the workpiece can be moved. The workpiece can be machined without turning over in the axial direction, which contributes to shortening the machining time and improving the machining accuracy.
【図１】本発明の実施例の前部の側面断面図である。FIG. 1 is a side sectional view of a front portion of an embodiment of the present invention.
【図２】本発明の実施例の後部の側面断面図である。FIG. 2 is a side sectional view of a rear portion of the embodiment of the present invention.
【図３】図１のＡ−Ａ拡大断面図である。FIG. 3 is an enlarged cross-sectional view taken along the line AA of FIG.
【図４】図１のＢ−Ｂ拡大断面図である。4 is an enlarged cross-sectional view taken along the line BB of FIG.
【図５】図２のＣ−Ｃ断面図である。5 is a sectional view taken along line CC of FIG.
【図６】本発明の実施例の伸縮接手の側面断面図であ
る。FIG. 6 is a side cross-sectional view of the expansion joint of the embodiment of the present invention.
【図７】図６の側面図である。FIG. 7 is a side view of FIG.
【図８】図６の正面図である。FIG. 8 is a front view of FIG.
【図９】他の実施例の縦断面図である。FIG. 9 is a vertical cross-sectional view of another embodiment.
【図１０】他の実施例の縦断面図である。FIG. 10 is a vertical cross-sectional view of another embodiment.
【図１１】他の研削盤への適用例を示す平面図である。FIG. 11 is a plan view showing an application example to another grinding machine.
【図１２】図１１のＤ−Ｄ断面図である。12 is a cross-sectional view taken along the line DD of FIG.
【図１３】従来例の平面図である。FIG. 13 is a plan view of a conventional example.
【図１４】従来例の平面図である。FIG. 14 is a plan view of a conventional example.
【図１５】図１の一部拡大図である。FIG. 15 is a partially enlarged view of FIG.
１ クイル ５ 加工物主軸台 ６ 心押台 １０ 面板 １２ 加工物回転用治具 １３ 加工物主軸 １８ 取付輪 １９ 伸縮接手 ２０ スリーブ 1 Quill 5 Workpiece headstock 6 Tailstock 10 Face plate 12 Workpiece rotation jig 13 Workpiece spindle 18 Mounting ring 19 Expansion joint 20 Sleeve
Claims (1)
二つの加工物支持駆動手段を備えた円筒研削盤におい
て、二つの加工物支持駆動手段は同構成であって、夫々
の本体に固定されたスリーブに加工物駆動具支持部材が
軸方向移動自在に嵌入し、該加工物駆動具支持部材を軸
方向に移動させる駆動装置を備え、加工物駆動具支持部
材中心に夫々の本体に対して固定、又は軸方向移動自在
に加工物主軸を支持すると共に該加工物主軸を軸方向に
移動させる駆動装置を備え、スリーブ前端部に回転自在
で回転駆動装置に連結された面板を固定し、加工物駆動
具支持部材前端部に回転自在に加工物回転用治具を固定
し、加工物回転用治具と面板とを回転方向に剛で、加工
物主軸の軸方向に伸縮自在な伸縮接手で結合したことを
特徴とする円筒研削盤。1. A cylindrical grinder provided with two workpiece support driving means composed of a workpiece spindle headstock and a tailstock opposite to each other, wherein the two workpiece support driving means have the same structure and are provided in respective main bodies. A workpiece driving tool support member is fitted in a fixed sleeve so as to be movable in the axial direction, and a drive device for moving the workpiece driving tool support member in the axial direction is provided. A drive device that supports the workpiece spindle so as to be fixed or movable in the axial direction and that moves the workpiece spindle in the axial direction is provided, and a face plate that is rotatably connected to the rotary drive device is fixed to the sleeve front end portion. , The workpiece rotating jig is rotatably fixed to the front end of the workpiece driving tool support member, and the workpiece rotating jig and the face plate are rigid in the rotating direction, and can be expanded and contracted in the axial direction of the workpiece spindle. Cylindrical grinding machine characterized by being joined by joints .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33570691A JP3238177B2 (en) | 1991-11-25 | 1991-11-25 | Grinding method and cylindrical grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33570691A JP3238177B2 (en) | 1991-11-25 | 1991-11-25 | Grinding method and cylindrical grinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05345264A true JPH05345264A (en) | 1993-12-27 |
| JP3238177B2 JP3238177B2 (en) | 2001-12-10 |
Family
ID=18291572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33570691A Expired - Fee Related JP3238177B2 (en) | 1991-11-25 | 1991-11-25 | Grinding method and cylindrical grinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3238177B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010001706A1 (en) * | 2008-07-01 | 2010-01-07 | Ntn株式会社 | Bearing roller, bearing, and bearing roller processing method |
| JP2011251398A (en) * | 2010-06-04 | 2011-12-15 | Jtekt Corp | Grinding method by composite grinder |
-
1991
- 1991-11-25 JP JP33570691A patent/JP3238177B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010001706A1 (en) * | 2008-07-01 | 2010-01-07 | Ntn株式会社 | Bearing roller, bearing, and bearing roller processing method |
| JP2010014154A (en) * | 2008-07-01 | 2010-01-21 | Ntn Corp | Bearing roller, bearing and bearing roller processing method |
| JP2011251398A (en) * | 2010-06-04 | 2011-12-15 | Jtekt Corp | Grinding method by composite grinder |
| EP2394782A3 (en) * | 2010-06-04 | 2016-11-23 | JTEKT Corporation | Grinding method of multifunction grinding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3238177B2 (en) | 2001-12-10 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |