JP3148054B2 - Grinding method and apparatus - Google Patents
Grinding method and apparatusInfo
- Publication number
- JP3148054B2 JP3148054B2 JP22876093A JP22876093A JP3148054B2 JP 3148054 B2 JP3148054 B2 JP 3148054B2 JP 22876093 A JP22876093 A JP 22876093A JP 22876093 A JP22876093 A JP 22876093A JP 3148054 B2 JP3148054 B2 JP 3148054B2
- Authority
- JP
- Japan
- Prior art keywords
- grinding
- work
- outer diameter
- inner diameter
- cutting
- 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.)
- Expired - Fee Related
Links
Landscapes
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、シューやローラ等の支
持部材によりワークを回転可能に支持しながらその研削
を行う方法及び装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for grinding a work while supporting the work rotatably by supporting members such as shoes and rollers.
【０００２】[0002]
【従来の技術】従来、ワークの外径研削（円筒研削）や
内径研削（内面研削）を行う手段として、上記ワークを
チャックに装着し、このチャックによりワークを回転さ
せながら同ワークに砥石を接触させるといった通常の研
削のほか、上記チャックに代え、上記ワーク周面の複数
個所をシューやローラといった支持部材に当てた状態で
支持しながらワークを研削する、いわゆる芯なし研削が
知られている（例えば実公平２−３６６９８号公報参
照）。このような研削を実行することにより、チャック
にワークを着脱させる場合に比べ、ワークのセット作業
を大幅に簡略化でき、サイクルタイムを短縮することが
できる利点が得られる。2. Description of the Related Art Conventionally, as a means for performing outer diameter grinding (cylindrical grinding) or inner diameter grinding (inner surface grinding) of a work, the work is mounted on a chuck, and a grindstone is brought into contact with the work while rotating the work with the chuck. In addition to the normal grinding such as grinding, so-called centerless grinding, in which the work is ground while supporting a plurality of portions of the work peripheral surface in contact with a support member such as a shoe or a roller instead of the chuck, is known ( For example, see Japanese Utility Model Publication No. 2-36698). By performing such grinding, there is an advantage that the work of setting the work can be greatly simplified and the cycle time can be reduced as compared with the case where the work is attached to and detached from the chuck.
【０００３】[0003]
【発明が解決しようとする課題】従来、同一のワークの
外周面、内周面の双方を研削する場合、まずワーク外周
面（もしくは内周面）を外径研削専用（もしくは内径研
削専用）の装置で研削した後、このワークの内周面（も
しくは外周面）を内径研削専用（もしくは外径研削専
用）の装置で研削するといった方法が行われている。こ
のような方法では、一つのワークを加工するのに、外径
研削装置、内径研削装置に対して計２回のセット作業を
要することになり、その分加工能率が低下する。Conventionally, when grinding both the outer peripheral surface and the inner peripheral surface of the same work, first, the outer peripheral surface (or the inner peripheral surface) of the work is exclusively used for the outer diameter grinding (or the inner diameter grinding). A method is performed in which after grinding by an apparatus, the inner peripheral surface (or outer peripheral surface) of the work is ground by an apparatus dedicated to inner diameter grinding (or dedicated to outer diameter grinding). According to such a method, in order to process one work, the outer diameter grinding device and the inner diameter grinding device require a total of two set operations, and the processing efficiency is reduced by that amount.
【０００４】本発明は、このような事情に鑑み、同一の
ワークの外周面、内周面の双方を研削する場合に、その
サイクルタイムを大幅に短縮することができる方法及び
装置を提供することを目的とする。[0004] In view of such circumstances, the present invention provides a method and apparatus capable of greatly reducing the cycle time when grinding both the outer peripheral surface and the inner peripheral surface of the same work. With the goal.
【０００５】[0005]
【課題を解決するための手段】上記のように同一ワーク
の外周面、内周面の双方を研削する場合、両周面に外径
研削用砥石、内径研削用砥石をそれぞれ同時に圧接させ
ながら加工を行えば、外周面の研削、内周面の研削を個
別に行う場合に比べ、サイクルタイムを大幅に短縮でき
る。しかし、上記のようにシューやローラ等の支持部材
でワークを支持しながら研削を行う場合には、ワーク外
周面の研削が進むにつれて（すなわちワーク外径が小さ
くなるにつれて）、支持部材に対してワーク外周面が漸
次摺動しながらワーク回転中心が移動するため、ワーク
をチャック等で支持する場合と異なり、ワーク内周面を
実際に研削、除去する量だけ内径研削用砥石の切込み送
りを行っても、正確な研削を行うことができない不都合
が生じる。In order to grind both the outer peripheral surface and the inner peripheral surface of the same work as described above, machining is performed while simultaneously pressing an outer diameter grinding wheel and an inner diameter grinding wheel on both the peripheral surfaces. , The cycle time can be greatly reduced as compared with the case where the outer peripheral surface and the inner peripheral surface are individually ground. However, when grinding is performed while supporting the work with a support member such as a shoe or a roller as described above, as the grinding of the outer peripheral surface of the work proceeds (that is, as the outer diameter of the work decreases), the support member is Since the center of rotation of the work moves while the outer circumferential surface of the work gradually slides, unlike the case where the work is supported by a chuck, etc., the infeed of the grinding wheel for inner diameter grinding is performed by the amount that actually grinds and removes the inner circumferential surface of the work. However, there is a disadvantage that accurate grinding cannot be performed.
【０００６】本発明は、このような点に着目してなされ
たものであり、円筒状のワークの周面複数個所を支持部
材に当てることによりワークを回転可能に支持しながら
研削を行う研削方法において、外径研削用砥石を回転さ
せながらこの外径研削用砥石を上記ワークの外周面に圧
接させるように切込み送りを行うと同時に、内径研削用
砥石を回転させながらこの内径研削用砥石を上記ワーク
の内周面に圧接させるように切込み送りを行い、かつ、
上記外径研削用砥石による研削に起因するワーク回転中
心の移動量に基づき両研削用砥石の切込み送り量を補正
演算してこの演算した切込み送り量に基づき上記外径研
削用砥石及び内径研削用砥石の切込み送りを制御するも
のである。The present invention has been made in view of such a point, and a grinding method for performing grinding while rotatably supporting a work by applying a plurality of peripheral surfaces of a cylindrical work to a support member. At the same time as rotating the grinding wheel for outer diameter, while performing the cutting feed so that the grinding wheel for outer diameter is pressed against the outer peripheral surface of the work, the grinding wheel for inner diameter grinding while rotating the grinding wheel for inner diameter grinding The feed is cut so as to press against the inner surface of the work, and
The cutting feed amount of both grinding wheels is corrected based on the movement amount of the work rotation center caused by the grinding by the outer diameter grinding wheel, and the outer diameter grinding wheel and the inner diameter grinding are performed based on the calculated cutting feed amount. It controls the cutting feed of the grindstone.
【０００７】また本発明は、上記ワークの周面と当たる
状態でこのワークを回転可能に支持する複数の支持部材
を備えた研削装置において、外径研削用砥石を回転させ
る外径研削用回転駆動手段と、この外径研削用砥石をワ
ークに圧接させるように切込み送りを行う外径研削用切
込み手段と、内径研削用砥石を回転させる内径研削用回
転駆動手段と、この内径研削用砥石をワークに圧接させ
る方向に切込み送りを行う内径研削用切込み手段と、上
記外径研削用砥石による研削に起因するワーク回転中心
の移動量に基づいて両研削用砥石の切込み送り量を補正
演算する切込み送り量演算手段と、この切込み送り量演
算手段で演算された切込み送り量に基づき、上記外径研
削用砥石及び内径研削用砥石をワークの外周面及び内周
面にそれぞれ同時に圧接させるように上記外径研削用切
込み手段と内径研削用切込み手段の作動を制御する切込
み制御手段とを備えたものである。The present invention also provides a grinding apparatus having a plurality of support members rotatably supporting a workpiece in contact with the peripheral surface of the workpiece. Means, a cutting means for outer diameter grinding for performing a cutting feed so that the grinding wheel for outer diameter grinding is pressed against the work, a rotation driving means for inner diameter grinding for rotating the grinding wheel for inner diameter grinding, and a grinding wheel for inner diameter grinding. A cutting means for inner diameter grinding for performing a cutting feed in a direction in which the grinding wheels are pressed against the workpiece, and a cutting feed for correcting and calculating a cutting feed amount of both grinding wheels based on a movement amount of a work rotation center caused by grinding by the outer diameter grinding wheel. Based on the cutting feed amount calculated by the cutting feed amount calculating means, the outer diameter grinding wheel and the inner diameter grinding wheel are simultaneously placed on the outer peripheral surface and the inner peripheral surface of the work, respectively. It is obtained by a cut control means for controlling the operation of the outer diameter of the grinding cutting means and the inner diameter grinding cutting means so as to press-contact.
【０００８】[0008]
【作用】上記方法及び装置によれば、ワークの外周面、
内周面に対し、外径研削用砥石、内径研削用砥石の切込
み送りが同時に行われ、両周面の研削が同時に並行して
行われる。ここで、上記ワークは、その周面の複数個所
が支持部材に当てられた状態で支持されているだけなの
で、このワーク外周面の研削が進んでワーク外径が小さ
くなるにつれ、ワーク回転中心は漸次移動するが、この
方法及び装置では、このようなワーク回転中心の移動量
に基づいて両研削用砥石の切込み送り量を補正演算し、
この演算した切込み送り量に基づき上記外径研削用砥石
及び内径研削用砥石の切込み送りを制御しているので、
ワーク外周面、内周面とも、所望の研削量を実際に得る
ことができる。According to the above method and apparatus, the outer peripheral surface of the work,
The infeed of the outer diameter grinding wheel and the inner diameter grinding wheel is simultaneously performed on the inner peripheral surface, and the grinding of both the peripheral surfaces is performed simultaneously in parallel. Here, since the work is supported only in a state where a plurality of portions of its peripheral surface is abutted on the support member, as the outer peripheral surface of the work progresses and the outer diameter of the work becomes smaller, the center of rotation of the work becomes larger. Although it moves gradually, in this method and apparatus, the cutting feed amount of both grinding wheels is corrected and calculated based on the moving amount of the work rotation center,
Since the cutting feed of the outer diameter grinding wheel and the inner diameter grinding wheel is controlled based on the calculated cutting feed amount,
A desired grinding amount can be actually obtained on both the outer peripheral surface and the inner peripheral surface of the work.
【０００９】[0009]
【実施例】本発明の一実施例を図１〜図４に基づいて説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS.
【００１０】図２に示す研削装置は、ワーク支持部１
０、外径研削駆動部１２、及び内径研削駆動部１４を備
えている。The grinding device shown in FIG.
0, an outer diameter grinding drive section 12, and an inner diameter grinding drive section 14.
【００１１】ワーク支持部１０は、図３にも示すよう
に、ヘッド１６に設置される基台１８を備え、この基台
１８に切込み送り方向（図２，３では左右方向）に延び
る送りねじ２０が回転可能に支持されている。この送り
ねじ２０は、ジョイント２２を介してワーク送りモータ
（内径研削用送り手段）２４に連結されている。上記基
台１８には、図略の案内装置を介してテーブル２８が上
記切込み送り方向（以下、単に「切込み方向」と称す
る。）にスライド可能に支持され、このテーブル２８の
下面に固定されたナット部材２６が、上記送りねじ２０
に螺合されている。As shown in FIG. 3, the work supporting portion 10 has a base 18 installed on the head 16, and a feed screw extending in the cutting feed direction (the left-right direction in FIGS. 2 and 3). 20 is rotatably supported. The feed screw 20 is connected to a work feed motor (feed means for inner diameter grinding) 24 via a joint 22. A table 28 is supported on the base 18 via a guide device (not shown) so as to be slidable in the cutting feed direction (hereinafter, simply referred to as “cutting direction”), and is fixed to the lower surface of the table 28. The nut member 26 is connected to the feed screw 20
Is screwed into.
【００１２】上記テーブル２８上には、ワーク支持部材
３０が立設されている。このワーク支持部材３０の前面
には、マグネット３８が固定されるとともに、シュー支
持部材３２が突設され、このシュー支持部材３２の適当
な２個所にシュー（支持部材）３４，３６が固定されて
いる。そして、ワークＷの側面がマグネット３８に吸着
されながらこのワークＷの外周面２個所に上記シュー３
４，３６がそれぞれ当接することにより、ワークＷがマ
グネット３８に対して摺動しながら回転可能となるよう
に支持されるとともに、上記ワーク送りモータ２４が作
動して送りねじ２０が回転駆動されることにより、テー
ブル２８及びワーク支持部材３０と一体にワークＷが上
記切込み方向に移送されるようになっている。On the table 28, a work supporting member 30 is provided upright. A magnet 38 is fixed to the front surface of the work support member 30 and a shoe support member 32 is protruded from the work support member 30. Shoes (support members) 34 and 36 are fixed to two appropriate positions of the shoe support member 32. I have. Then, while the side surface of the work W is attracted to the magnet 38, the shoe 3
The workpiece W is supported so as to be rotatable while sliding against the magnet 38 by the contact of the workpieces 4 and 36, and the workpiece feed motor 24 is operated to rotate the feed screw 20. Thus, the work W is transferred integrally with the table 28 and the work supporting member 30 in the cutting direction.
【００１３】外径研削駆動部１２は、テーブル４０を備
え、このテーブル４０は上記べッド１６に対して位置決
め送り方向（図２では上下方向）にスライド可能に設置
されており、位置決めモータ４２及び図略の送りねじ機
構により上記位置決め送り方向にスライド駆動されるよ
うになっている。上記テーブル４０には、上記切込み方
向にスライド可能にテーブル４４が設置され、このテー
ブル４４は、外径切込みモータ（外径研削用送り手段）
４６及び図略の送りねじ機構により、上記テーブル４０
に対して上記切込み方向にスライド駆動されるようにな
っている。The outer diameter grinding drive section 12 includes a table 40 which is slidably mounted on the bed 16 in the positioning feed direction (in the vertical direction in FIG. 2). And a slide screw in the above-described positioning feed direction by a feed screw mechanism (not shown). A table 44 is provided on the table 40 so as to be slidable in the cutting direction. The table 44 is provided with an outer diameter cutting motor (outer diameter grinding feeding means).
46 and the unillustrated feed screw mechanism, the table 40
Is driven to slide in the above-mentioned cutting direction.
【００１４】このテーブル４４上には、外径研削モータ
（外径研削用回転駆動手段）４８及びホイールヘッド５
０が設置されている。このホイールヘッド５０の主軸に
は、外径研削用砥石５４が装着されるとともに、上記外
径研削モータ４８の出力軸がベルト５２を介して連結さ
れており、外径研削モータ４８の作動により、上記外径
研削用砥石５４が回転駆動されるようになっている。An outer diameter grinding motor (rotation driving means for outer diameter grinding) 48 and a wheel head 5
0 is set. An outer diameter grinding wheel 54 is mounted on a main shaft of the wheel head 50, and an output shaft of the outer diameter grinding motor 48 is connected via a belt 52. By the operation of the outer diameter grinding motor 48, The outer diameter grinding wheel 54 is driven to rotate.
【００１５】内径研削駆動部１４は、テーブル５６を備
え、このテーブル５６は上記べッド１６に対して上記位
置決め送り方向にスライド可能に設置されており、位置
決めモータ５７及び図略の送りねじ機構により上記位置
決め送り方向にスライド駆動されるようになっている。The inner diameter grinding drive unit 14 includes a table 56 which is slidably mounted on the bed 16 in the positioning and feeding direction, and includes a positioning motor 57 and a feed screw mechanism (not shown). Slidably drives in the positioning feed direction.
【００１６】上記テーブル５６上には、内径研削モータ
を内蔵したホイールヘッド（内径研削用回転駆動手段）
５８が設置され、このホイールヘッド５８の主軸に内径
研削用砥石６０が装着されており、ホイールヘッド５８
の作動によって上記内径研削用砥石６０が回転駆動され
るようになっている。On the table 56, a wheel head with a built-in inner diameter grinding motor (rotation driving means for inner diameter grinding)
The wheel head 58 is provided with a grindstone 60 for grinding inside diameter.
The above operation causes the inner grinding wheel 60 to be rotationally driven.
【００１７】この研削装置は、ＮＣ制御装置７０を備え
ている。このＮＣ制御装置７０は、上記各モータに制御
信号を出力することにより、その作動を制御するもので
あり、切込み送りを制御する手段として、図４に示すよ
うな内径切込み量演算手段７１、ワーク送りモータ制御
手段７２、外径切込み量演算手段７３、外径切込みモー
タ制御手段７４、外径研削量記憶手段７５、及びワーク
回転中心移動量演算手段７６を備えている。This grinding device includes an NC control device 70. The NC control device 70 controls the operation of the motor by outputting a control signal to each of the motors. As means for controlling the cutting feed, an inner diameter cutting amount calculating means 71 as shown in FIG. There are provided a feed motor control means 72, an outer diameter cutting amount calculating means 73, an outer diameter cutting motor control means 74, an outer diameter grinding amount storage means 75, and a work rotation center moving amount calculating means 76.
【００１８】内径切込み量演算手段７１は、研削制御中
における各時刻での目標内径研削量を基本量、後述のワ
ーク回転中心移動量演算手段７６で演算されるＸ方向
（切込み方向）及びＹ方向（上下方向）の双方について
のワーク回転中心移動量Δｘ，Δｙを補正量として、内
径研削用砥石６０の切込み送り量（以下、切込み量と称
する。）ΔＩＸを演算するものである。An inner diameter cutting amount calculating means 71 calculates a target inner diameter grinding amount at each time during the grinding control as a basic amount, and an X direction (cutting direction) and a Y direction calculated by a work rotation center moving amount calculating means 76 described later. The cut feed amount (hereinafter, referred to as the cut amount) ΔIX of the inner diameter grinding wheel 60 is calculated by using the work rotation center movement amounts Δx and Δy in both (vertical direction) as correction amounts.
【００１９】ワーク送りモータ制御手段７２は、内径研
削用砥石６０について上記内径切込み量演算手段７１で
演算された切込み量が得られるように、ワーク送りモー
タ２４の作動を制御するものである。The work feed motor control means 72 controls the operation of the work feed motor 24 so that the cut amount calculated by the inside cut amount calculating means 71 can be obtained for the inner diameter grinding wheel 60.
【００２０】外径切込み量演算手段７３は、研削制御中
における各時刻での目標外径研削量を基本量、後述のワ
ーク回転中心移動量演算手段７６で演算されるＸ方向の
ワーク回転中心移動量Δｘを補正量として、外径研削用
砥石５４の切込み量ΔＯＸを演算するものである。The outer diameter cutting amount calculating means 73 calculates a target outer diameter grinding amount at each time during the grinding control as a basic amount, and a work rotation center movement in the X direction calculated by a work rotation center movement amount calculating means 76 described later. The amount of cut ΔOX of the outer diameter grinding wheel 54 is calculated using the amount Δx as a correction amount.
【００２１】外径切込みモータ制御手段７４は、ワーク
送りモータ２４による切込み送り量も考慮しながら、外
径研削用砥石５４について上記外径切込み量演算手段７
３で演算された切込み量が得られるように、外径切込み
モータ４６の作動を制御するものである。The outer diameter cutting motor control means 74 considers the outer feed amount by the work feed motor 24 and considers the outer diameter cutting amount calculating means 7 for the outer diameter grinding wheel 54.
The operation of the outer diameter cutting motor 46 is controlled so that the cutting amount calculated in step 3 is obtained.
【００２２】外径研削量記憶手段７５は、上記外径切込
みモータ制御手段７４による制御下での外径切込みモー
タ４６による実際の外径切込み量を一時的に記憶するも
のである。The outer diameter grinding amount storage means 75 temporarily stores the actual outer diameter cutting amount by the outer diameter cutting motor 46 under the control of the outer diameter cutting motor control means 74.
【００２３】ワーク回転中心移動量演算手段７６は、上
記外径研削量記憶手段７５で記憶された外径研削量に基
づき、この研削に伴うＸ，Ｙ方向へのワーク回転中心の
移動量Δｘ，Δｙを演算し、上記各切込み量演算手段７
１，７３に出力するものである。Based on the outer diameter grinding amount stored in the outer diameter grinding amount storage means 75, the work rotational center moving amount calculating means 76 calculates the moving amount Δx, X, Y of the workpiece rotational center in the X and Y directions accompanying the grinding. Δy is calculated, and each of the cut amount calculating means 7 is calculated.
1, 73.
【００２４】すなわち、上記内径切込み量演算手段７
１、外径切込み量演算手段７３、及びワーク回転中心移
動量演算手段７６により、本発明における切込み送り量
演算手段が構成され、ワーク送りモータ制御手段７２及
び外径切込みモータ制御手段７４により、本発明におけ
る切込み制御手段が構成されている。That is, the inner diameter cut amount calculating means 7
1. The cutting feed amount calculating means in the present invention is constituted by the outer diameter cutting amount calculating means 73 and the work rotation center moving amount calculating means 76, and the work feeding motor control means 72 and the outer diameter cutting motor controlling means 74 make the The cutting control means in the invention is constituted.
【００２５】次に、この装置の作用を説明する。Next, the operation of this device will be described.
【００２６】まず、ワークＷの側面がマグネット３８に
吸着された状態で、このワークＷの外周面２個所にシュ
ー３４，３６が当たるようにワークＷがセットされる。
この状態で、位置決めモータ４２，５７の作動により、
外径研削用砥石５４がワークＷの外周面に接触可能な位
置に位置決めされるとともに、内径研削用砥石６０がワ
ークＷの中心穴内に挿入され、外径研削モータ４８及び
ホイールヘッド５８の作動により、各砥石５４，６０が
回転駆動される。そして、ワーク送りモータ２４及び外
径切込みモータ４６の作動により、上記外径研削用砥石
５４がワークＷ外周面に圧接する方向に切込み送りされ
ると同時に、内径研削用砥石６０がワークＷ内周面に圧
接する方向に切込み送りされ、これにより、ワークＷ自
身の回転を伴いながらその内外周面が同時に並行して研
削されることとなる。First, the work W is set such that the shoes 34 and 36 hit two outer peripheral surfaces of the work W while the side surface of the work W is attracted to the magnet 38.
In this state, by the operation of the positioning motors 42 and 57,
The outer diameter grinding wheel 54 is positioned at a position where it can come into contact with the outer peripheral surface of the work W, and the inner diameter grinding wheel 60 is inserted into the center hole of the work W, and the outer diameter grinding motor 48 and the wheel head 58 operate. The grindstones 54 and 60 are driven to rotate. Then, by the operation of the work feed motor 24 and the outer diameter cutting motor 46, the outer diameter grinding grindstone 54 is cut and fed in a direction in which it is pressed against the outer peripheral surface of the work W, and at the same time, the inner diameter grinding grindstone 60 is moved to the inner periphery of the work W. The workpiece W is cut and fed in a direction of being pressed against the surface, whereby the inner and outer peripheral surfaces of the workpiece W are simultaneously ground while being rotated.
【００２７】ここで、研削当初は、上記内径切込み量演
算手段７１及び外径切込み量演算手段７３は、目標外径
研削量及び目標内径研削量をそれぞれ内径切込み量ΔＩ
Ｘ、外径切込み量ΔＯＸとして出力するが、外径研削が
進んで外径が次第に小さくなるのに伴い、図１に示すよ
うに、シュー３４，３６と接触しているだけのワークＷ
の中心は、同図点Ａから、シュー３４，３６の支持面の
延長面３４ａ，３６ａにより形成される角の２等分線８
０に沿って移動することとなるため、このワーク回転中
心移動量のＸ方向成分Δｘ及びＹ方向成分Δｙをワーク
回転中心移動量演算手段７６が演算し、このワーク回転
中心移動量に基づいて各切込み量ΔＩＸ，ΔＯＸの補正
が逐次行われる。Here, at the beginning of grinding, the inner diameter cutting amount calculating means 71 and the outer diameter cutting amount calculating means 73 convert the target outer diameter grinding amount and the target inner diameter grinding amount into the inner diameter cutting amount ΔI, respectively.
X, which is output as the outer diameter depth of cut ΔOX. As the outer diameter grinding progresses and the outer diameter gradually decreases, as shown in FIG. 1, the work W only contacts the shoes 34 and 36.
From the point A in the figure, the bisector 8 of the angle formed by the extended surfaces 34a, 36a of the support surfaces of the shoes 34, 36
Therefore, the work rotation center movement amount calculating means 76 calculates the X-direction component Δx and the Y-direction component Δy of the work rotation center movement amount, and based on the work rotation center movement amount, The correction of the cutting amounts ΔIX and ΔOX are sequentially performed.
【００２８】次に、上記各切込み量演算手段７１，７３
及びワーク回転中心移動量演算手段７６による演算内容
を図１を参照しながら説明する。Next, the above-mentioned cutting amount calculating means 71, 73
The contents of the calculation by the work rotation center moving amount calculating means 76 will be described with reference to FIG.
【００２９】なお、図１において円弧５４ａは研削当初
における外径研削用砥石５４の外周面位置、円弧５４ｂ
は所定量の研削が進んだ段階における外径研削用砥石５
４の外周面位置、円６０ａは研削当初における内径研削
用砥石６０の外周面位置、円６０ｂは上記量の研削が進
んだ段階における内径研削用砥石６０の外周面位置、円
ＷＯａは研削当初におけるワークＷの外周面位置、円Ｗ
Ｏｂは上記量の研削が進んだ段階におけるワークＷの外
周面位置、円ＷＩａは研削当初におけるワークＷの内周
面位置、円ＷＯｂは上記量の研削が進んだ段階における
ワークＷの内周面位置、直線８１は研削当初のワーク回
転中心点Ａを通るシュー３４の支持面の法線、直線８２
は上記点Ａを通るシュー３６の支持面の法線、直線８４
は上記点Ａを通る水平線、直線８６は研削当初の内径研
削用砥石６０の中心点Ｅ及び上記量の研削が進んだ段階
での内径研削用砥石６０の中心点Ｆを通る水平線、直線
８８は上記点Ａを通る鉛直線、点Ｏは直線８６，８８の
交点（基準点）、点Ｂは上記量の研削が進んだ段階での
ワーク回転中心点、点Ｃは上記点Ｂから直線８１に降ろ
した垂線と直線８１との交点、角度αは直線８１，８４
のなす角度、角度βは直線８２，８４のなす角度であ
る。In FIG. 1, the arc 54a is the position of the outer peripheral surface of the grindstone 54 for outer diameter grinding at the beginning of grinding, and the arc 54b
Is the grinding wheel 5 for outer diameter grinding at the stage when a predetermined amount of grinding has progressed.
4, the circle 60a is the outer circumference position of the inner diameter grinding wheel 60 at the beginning of the grinding, the circle 60b is the outer circumference surface position of the inner diameter grinding wheel 60 at the stage when the above amount of grinding is advanced, and the circle WOa is the initial grinding time. Outer peripheral surface position of work W, circle W
Ob is the outer peripheral surface position of the work W at the stage where the above-mentioned amount of grinding has been advanced, the circle WIa is the inner peripheral surface position of the work W at the beginning of the grinding, and the circle WOb is the inner peripheral surface of the work W at the stage where the above amount of grinding has been advanced. The position and the straight line 81 are the normal to the support surface of the shoe 34 passing through the workpiece rotation center point A at the beginning of grinding, and the straight line 82.
Is the normal to the support surface of the shoe 36 passing through the point A,
Is a horizontal line passing through the point A, a straight line 86 is a horizontal line passing through the center point E of the inner diameter grinding wheel 60 at the beginning of grinding and the center point F of the inner diameter grinding wheel 60 at the stage when the above amount of grinding is advanced, and a straight line 88 is The vertical line passing through the point A, the point O is the intersection (reference point) of the straight lines 86 and 88, the point B is the center point of the workpiece rotation at the stage when the above-mentioned amount of grinding is advanced, and the point C is a straight line 81 from the point B. The intersection of the lowered perpendicular and the straight line 81 and the angle α are the straight lines 81 and 84
Is an angle between the straight lines 82 and 84.
【００３０】また、以下に示す数式において、ＯＤ，Ｉ
Ｄは研削当初のワーク外径及び内径、Ｏｄ，Ｉｄは上記
量の研削が進んだ段階でのワーク外径及び内径、ＷＤは
内径研削用砥石６０の外径をそれぞれ示すものとする。In the following equation, OD, I
D indicates the outer diameter and inner diameter of the workpiece at the beginning of grinding, Od and Id indicate the outer diameter and inner diameter of the workpiece at the stage when the above amount of grinding has progressed, and WD indicates the outer diameter of the inner diameter grinding wheel 60, respectively.
【００３１】このような条件下において、まず、上記量
の研削が進んだ段階で設定されるべき切込み量を演算す
るための式の導出を説明する。Under such conditions, first, the derivation of an equation for calculating the depth of cut to be set at the stage when the above amount of grinding has advanced will be described.
【００３２】図１の三角形ＡＢＣに着目すると、次式が
得られる。Focusing on the triangle ABC of FIG. 1, the following equation is obtained.
【００３３】[0033]
【数１】 (Equation 1)
【００３４】ここで、線分ＡＢの長さをＬとすると、こ
のＬは次式で与えられる。Here, assuming that the length of the line segment AB is L, this L is given by the following equation.
【００３５】[0035]
【数２】 (Equation 2)
【００３６】一方、研削当初から現段階までのワーク回
転中心のＸ方向の移動量Δｘの長さは、次式で与えられ
る。On the other hand, the length of the movement Δx in the X direction of the center of rotation of the workpiece from the beginning of grinding to the current stage is given by the following equation.
【００３７】[0037]
【数３】 (Equation 3)
【００３８】この（数３）に前記（数２）を代入すると
次式が得られる。By substituting Equation (2) into Equation (3), the following equation is obtained.
【００３９】[0039]
【数４】 (Equation 4)
【００４０】この（数４）に基づいて、ワーク回転中心
移動量演算手段７６により、Ｘ方向のワーク回転中心移
動量Δｘが演算されることになる。Based on the equation (4), the work rotation center movement amount Δx in the X direction is calculated by the work rotation center movement amount calculating means 76.
【００４１】このワーク回転中心移動量Δｘだけ、研削
中にワークＷが切込み方向に逃げることになるから、こ
のワーク回転中心移動量Δｘと、実際の外径研削量（Ｏ
Ｄ−Ｏｄ）／２との和を目標切込み量ΔＯＸとして演算
すればよい。そこで、内径切込み量演算手段７１は、次
式に基づいて内径切込み量ΔＩｘの演算を逐次行う。Since the work W escapes in the cutting direction during the grinding by the work rotation center movement amount Δx, the work rotation center movement amount Δx and the actual outer diameter grinding amount (O
D−Od) / 2 may be calculated as the target depth of cut ΔOX. Therefore, the inner diameter cut amount calculating means 71 sequentially calculates the inner diameter cut amount ΔIx based on the following equation.
【００４２】[0042]
【数５】 (Equation 5)
【００４３】次に、上記量の研削が進んだ段階での目標
内径切込み量ΔＩＸを演算するための式の導出を説明す
る。なお、実際は前記図２，３に示したように内径研削
用砥石６０が静止した状態でワークＷが切込み方向に移
動することにより、内径切込みが行われるが、図１及び
以下の説明では、ワークＷが静止した状態で内径研削用
砥石６０が上記切込み方向に移動するものと仮定して式
を展開する。Next, a description will be given of the derivation of an equation for calculating the target inner diameter cutting amount ΔIX at the stage when the above-mentioned amount of grinding has advanced. In practice, the inner diameter cutting is performed by moving the workpiece W in the cutting direction with the inner diameter grinding wheel 60 stationary as shown in FIGS. 2 and 3, but in FIG. 1 and the following description, the inner diameter cutting is performed. The formula is developed on the assumption that the inner diameter grinding wheel 60 moves in the above-mentioned cutting direction while W is stationary.
【００４４】図１に示されるように、上記目標内径切込
み量ΔＩＸは線分ＥＦの長さ、すなわち線分ＯＦの長さ
と線分ＯＥの長さとの差に等しい。従って、両線分Ｏ
Ｅ，ＯＦの長さが求められれば、内径切込み量ΔＩＸが
導出できる。As shown in FIG. 1, the target inner diameter cutting amount ΔIX is equal to the length of the line segment EF, that is, the difference between the length of the line segment OF and the length of the line segment OE. Therefore, both line segments O
If the lengths of E and OF are obtained, the inner diameter cutting amount ΔIX can be derived.
【００４５】まず、線分ＯＥの長さ（以下の数式では単
に「ＯＥ」と記す。）は、次式により与えられる。First, the length of the line segment OE (hereinafter simply referred to as “OE” in the following formula) is given by the following formula.
【００４６】[0046]
【数６】 (Equation 6)
【００４７】ここで、線分ＡＥの長さ（以下の数式では
単に「ＡＥ」と記す。）は次式で与えられる。Here, the length of the line segment AE (hereinafter simply referred to as “AE”) is given by the following equation.
【００４８】[0048]
【数７】ＡＥ＝（Ｉｄ−ＷＤ）／２ 従って、Ｙ方向のワーク回転中心移動量Δｙが与えられ
れば、線分ＯＥを算出できる。この移動量Δｙは、線分
ＡＢの長さＬと、線分８０，８８のなす角度θ2とを用
いると次式で与えられる。AE = (Id−WD) / 2 Accordingly, if the work rotation center movement amount Δy in the Y direction is given, the line segment OE can be calculated. The movement amount Δy is given by the following equation using the length L of the line segment AB and the angle θ 2 formed by the line segments 80 and 88.
【００４９】[0049]
【数８】Δｙ＝Ｌcosθ2 ここで、上記角度θ2は次式で与えられる。Equation 8] Δy = Lcosθ 2 wherein the angle theta 2 is given by the following equation.
【００５０】[0050]
【数９】θ2＝θ1＋β−(π/２） ＝(π/２)−(α/２)−(β/２)＋β−(π/２） ＝(β−α)／２ よって、Ｙ方向のワーク回転中心移動量Δｙは次式で与
えられる。Equation 9: θ 2 = θ 1 + β− (π / 2) = (π / 2) − (α / 2) − (β / 2) + β− (π / 2) = (β−α) / 2 , Y-direction work rotation center movement amount Δy is given by the following equation.
【００５１】[0051]
【数１０】 (Equation 10)
【００５２】これに前記（数２）を代入すると、次式が
得られる。By substituting the above (Equation 2) for this, the following equation is obtained.
【００５３】[0053]
【数１１】 [Equation 11]
【００５４】この式に基づき、ワーク回転中心移動量演
算手段７６により上記移動量Δｙが演算される。そし
て、この移動量Δｙと、前記（数６），（数７）とに基
づき、次式により線分ＯＥの長さが与えられる。Based on this equation, the above-mentioned movement amount Δy is calculated by the work rotation center movement amount calculating means 76. Then, the length of the line segment OE is given by the following equation based on the movement amount Δy and the above (Equation 6) and (Equation 7).
【００５５】[0055]
【数１２】 (Equation 12)
【００５６】一方、線分ＯＦの長さ（以下の数式では単
に「ＯＦ」と記す。）は、次式により与えられる。On the other hand, the length of the line segment OF (hereinafter simply referred to as “OF”) is given by the following equation.
【００５７】[0057]
【数１３】ＯＦ＝（ＩＤ−ＷＤ）／２＋Δｘ この（数１３）、上記（数１１）、及びΔＩＸ＝ＯＦ−
ＯＥにより、次式が与えられる。## EQU13 ## OF = (ID-WD) /2+.DELTA.x This (Formula 13), (Formula 11), and .DELTA.IX = OF-
OE gives the following equation:
【００５８】[0058]
【数１４】 [Equation 14]
【００５９】上述のように、以上の演算は、ワークＷが
切込み方向に動かずに内径研削用砥石６０が移動すると
いう仮定の下で行っているが、実際は内径研削用砥石６
０が動かずにワークＷが切込み送りされるので、（数１
４）で与えられる値の正負を逆にしたものを実際の切込
み送り量ΔＩＸとして採用すればよい。すなわち、内径
切込み量演算手段７１は、次式に基づいて内径切込み量
を演算する。As described above, the above calculation is performed under the assumption that the workpiece W moves without moving the workpiece W in the cutting direction, but in actuality, the grinding wheel 6 for inner diameter grinding is actually used.
Since the workpiece W is cut and fed without moving 0, (Equation 1)
What is obtained by reversing the sign of the value given in 4) may be adopted as the actual cutting feed amount ΔIX. That is, the inner diameter cut amount calculating means 71 calculates the inner diameter cut amount based on the following equation.
【００６０】[0060]
【数１５】 (Equation 15)
【００６１】以上の各式に基づき、ワーク回転中心移動
量Δｘ，Δｙを加味しながら、目標研削量を正確に得る
ための適切な切込み量ΔＯＸ，ΔＩＸが算出され、これ
らの切込み量ΔＯＸ，ΔＩＸに基づいて切込み送りが制
御されることにより、シュー３４，３６を用いた芯なし
研削でありながら、外径、内径とも適切な量だけ研削さ
れることとなる。そして、これら内外径の研削が同時に
並行して行われることにより、外径研削、内径研削を個
別に行っていた従来技術と比べて加工能率を大幅に高
め、サイクル時間をより一層短縮することが可能とな
る。Based on the above equations, appropriate cutting amounts .DELTA.OX and .DELTA.IX for accurately obtaining the target grinding amount are calculated while taking into account the work rotation center moving amounts .DELTA.x and .DELTA.y, and these cutting amounts .DELTA.OX and .DELTA.IX are calculated. Is controlled based on the above, the outer diameter and the inner diameter are ground by an appropriate amount while the centerless grinding using the shoes 34 and 36 is performed. And since these inner and outer diameter grindings are performed simultaneously in parallel, the processing efficiency can be greatly improved and the cycle time can be further shortened as compared with the conventional technology in which outer diameter grinding and inner diameter grinding are individually performed. It becomes possible.
【００６２】例えば、図５（ａ）に示すように外径切込
み速度が研削段階に応じて変化する場合でも、これに対
応して変化する、同図（ｂ）に示すようなワーク回転中
心移動量を演算し、このワーク回転中心移動量に基づ
き、同図（ｃ）に示すように、内径研削のみ行う場合の
内径切込み量（実線９０）を切込み方向に応じて負方向
（破線９１）もしくは正方向（破線９２）に補正するこ
とにより、良好な研削を行うことができる。For example, even when the outer diameter cutting speed changes according to the grinding stage as shown in FIG. 5A, the workpiece rotation center movement as shown in FIG. Based on the amount of movement of the workpiece rotation center, as shown in FIG. 4C, the amount of inner diameter cutting (solid line 90) when only inner diameter grinding is performed is calculated in the negative direction (broken line 91) or the direction of cutting according to the cutting direction. By performing correction in the forward direction (broken line 92), good grinding can be performed.
【００６３】なお、上記実施例では、支持部材としてシ
ュー３４，３６を用いた装置を示したが、本発明はこれ
に限らず、図６に示すように、支持部材として回転可能
なローラ３４′，３６′を用いる場合にも、上記と同様
にワークＷの中心移動量を演算することにより、内外径
の同時研削を実現することができる。In the above-described embodiment, the apparatus using the shoes 34 and 36 as the supporting member has been described. However, the present invention is not limited to this, and as shown in FIG. , 36 ′, the simultaneous grinding of the inner and outer diameters can be realized by calculating the center movement amount of the work W in the same manner as described above.
【００６４】また、上記実施例では、内径研削用砥石６
０を動かさずにワークＷ及び外径研削用砥石５４を切込
み方向に送るものを示したが、外径研削用砥石５４を動
かさず、内径研削用砥石６０のテーブル５６に内径切込
みモータ２４を設けてワークＷと内径研削用砥石６０の
双方を切込み方向に送る場合にも適用が可能である。さ
らに、ワークＷを動かさず、外径研削用砥石５４と内径
研削用砥石６０の双方を切込み送りするようにしてもよ
い。In the above embodiment, the grinding wheel 6 for inner diameter grinding is used.
Although the workpiece W and the outer diameter grinding wheel 54 are fed in the cutting direction without moving the outer wheel 0, the inner diameter cutting motor 24 is provided on the table 56 of the inner diameter grinding wheel 60 without moving the outer diameter grinding wheel 54. The present invention is also applicable to a case where both the workpiece W and the grinding wheel 60 for inner diameter grinding are fed in the cutting direction. Furthermore, both the outer diameter grinding wheel 54 and the inner diameter grinding wheel 60 may be cut and fed without moving the work W.
【００６５】[0065]
【発明の効果】以上のように本発明は、比較的ワークの
セット作業が容易な支持部材を用いてワークを支持しな
がら、その外周面、内周面にそれぞれ外周研削用砥石、
内周研削用砥石を当てて同時研削するようにしたもので
あるので、従来に比べ、加工能率を大幅に高め、サイク
ルタイムをより一層短縮することができる。しかも、外
径切込み送り量及び内径切込み送り量を演算するにあた
り、これらの量を外径研削の進行に伴うワーク回転中心
移動量に基づいて補正しているので、上記支持部材によ
る支持でワーク回転中心が自由に移動する状態にありな
がらも、正確かつ良好な研削を維持することができる効
果がある。As described above, according to the present invention, an outer peripheral grinding wheel is provided on an outer peripheral surface and an inner peripheral surface of a work while supporting the work by using a support member which is relatively easy to set the work.
Since the grinding is performed simultaneously with the grinding wheel for inner circumference grinding, the processing efficiency can be greatly increased and the cycle time can be further reduced as compared with the related art. In addition, when calculating the outer diameter cut feed amount and the inner diameter cut feed amount, these amounts are corrected based on the work rotation center movement amount accompanying the progress of the outer diameter grinding. There is an effect that accurate and good grinding can be maintained while the center is freely moving.
【図１】本発明の一実施例におけるワークと各砥石との
位置関係を示す説明図である。FIG. 1 is an explanatory diagram showing a positional relationship between a work and each grindstone in one embodiment of the present invention.
【図２】上記実施例における研削装置の全体平面図であ
る。FIG. 2 is an overall plan view of the grinding device in the embodiment.
【図３】上記研削装置におけるワーク支持部の正面図で
ある。FIG. 3 is a front view of a work supporting portion in the grinding device.
【図４】上記研削装置に装備されるＮＣ制御装置の機能
構成を示すブロック図である。FIG. 4 is a block diagram showing a functional configuration of an NC control device provided in the grinding device.
【図５】（ａ）は外径切込み量の時間変化の一例を示す
グラフ、（ｂ）は上記外径切込み量の時間変化に対応す
るワーク回転中心移動量を示すグラフ、（ｃ）は上記ワ
ーク回転中心移動量に対応して補正される内径切込み量
を示すグラフである。5A is a graph showing an example of a temporal change of an outer diameter cut amount, FIG. 5B is a graph showing a work rotation center moving amount corresponding to the temporal change of the outer diameter cut amount, and FIG. 9 is a graph illustrating an inner diameter cut amount that is corrected in accordance with a work rotation center movement amount.
【図６】ワークをローラにより支持した例を示す正面図
である。FIG. 6 is a front view showing an example in which a work is supported by rollers.
１０ ワーク支持部 １２ 外径研削駆動部 １４ 内径研削駆動部 ２４ ワーク送りモータ（内径研削用切込み手段） ３４，３６ シュー（支持部材） ３４′，３６′ ローラ（支持部材） ４６ 外径切込みモータ（外径研削用切込み手段） ４８ 外径研削モータ（外径研削用回転駆動手段） ５４ 外径研削用砥石 ５８ ホイールヘッド（内径研削用回転駆動手段） ６０ 内径研削用砥石 ７０ ＮＣ制御装置 ７１ 内径切込み量演算手段（切込み送り量演算手段を
構成） ７２ ワーク送りモータ制御手段（切込み制御手段を構
成） ７３ 外径切込み量演算手段（切込み送り量演算手段を
構成） ７４ 外径切込みモータ制御手段（切込み制御手段を構
成） ７５ 外径研削量記憶手段 ７６ ワーク回転中心移動量演算手段（切込み送り量演
算手段を構成） Ｗ ワーク Δｘ Ｘ方向へのワーク回転中心移動量 Δｙ Ｙ方向へのワーク回転中心移動量DESCRIPTION OF SYMBOLS 10 Work support part 12 Outer diameter grinding drive part 14 Inner diameter grinding drive part 24 Work feed motor (cutting means for inner diameter grinding) 34, 36 Shoe (support member) 34 ', 36' Roller (support member) 46 Outer diameter cut motor ( Outside diameter grinding notch means) 48 Outside diameter grinding motor (outside diameter grinding rotary drive means) 54 Outside diameter grinding wheel 58 Wheel head (inner diameter grinding rotation drive means) 60 Inside diameter grinding wheel 70 NC controller 71 Inside diameter cut Amount calculating means (constitutes cutting feed amount calculating means) 72 Work feed motor control means (constitutes cutting control means) 73 Outer diameter cutting amount calculating means (constitutes cutting feed amount calculating means) 74 Outer diameter cutting motor control means (cutting) Control means) 75 Outside diameter grinding amount storage means 76 Work rotation center movement amount calculation means (constitutes cutting feed amount calculation means) H Δx Work rotation center movement amount in X direction Δy Work rotation center movement amount in Y direction
───────────────────────────────────────────────────── フロントページの続き (72)発明者 半田 貫士 広島市南区宇品東５丁目３番38号 トー ヨーエイテック株式会社内 (56)参考文献 特開 平６−339843（ＪＰ，Ａ) 特開 昭54−125589（ＪＰ，Ａ) 特開 昭48−77492（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B24D 5/12 B24B 5/18 B24B 47/20 B24B 49/10 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kanji Handa 5-3-38 Ujinahigashi, Minami-ku, Hiroshima Toyo-A-Tech Co., Ltd. (56) References JP-A-6-339843 (JP, A) JP-A-54-125589 (JP, A) JP-A-48-77492 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B24D 5/12 B24B 5/18 B24B 47/20 B24B 49/10
Claims (2)
材に当てることによりワークを回転可能に支持しながら
研削を行う研削方法において、外径研削用砥石を回転さ
せながらこの外径研削用砥石を上記ワークの外周面に圧
接させるように切込み送りを行うと同時に、内径研削用
砥石を回転させながらこの内径研削用砥石を上記ワーク
の内周面に圧接させるように切込み送りを行い、かつ、
上記外径研削用砥石による研削に起因するワーク回転中
心の移動量に基づき両研削用砥石の切込み送り量を補正
演算してこの演算した切込み送り量に基づき上記外径研
削用砥石及び内径研削用砥石の切込み送りを制御するこ
とを特徴とする研削方法。1. A grinding method for performing grinding while rotatably supporting a workpiece by contacting a plurality of circumferential surfaces of a cylindrical workpiece with a support member, wherein the grinding is performed while rotating an external grinding wheel. At the same time as performing the infeed so that the grindstone is pressed against the outer peripheral surface of the work, the infeed is performed so that the grindstone for inner diameter grinding is pressed against the inner peripheral surface of the work while rotating the grindstone for inner diameter grinding, and ,
The cutting feed amount of both grinding wheels is corrected based on the movement amount of the work rotation center caused by the grinding by the outer diameter grinding wheel, and the outer diameter grinding wheel and the inner diameter grinding are performed based on the calculated cutting feed amount. A grinding method characterized by controlling the infeed of a grindstone.
のワークを回転可能に支持する複数の支持部材を備えた
研削装置において、外径研削用砥石を回転させる外径研
削用回転駆動手段と、この外径研削用砥石をワークに圧
接させるように切込み送りを行う外径研削用切込み手段
と、内径研削用砥石を回転させる内径研削用回転駆動手
段と、この内径研削用砥石をワークに圧接させる方向に
切込み送りを行う内径研削用切込み手段と、上記外径研
削用砥石による研削に起因するワーク回転中心の移動量
に基づいて両研削用砥石の切込み送り量を補正演算する
切込み送り量演算手段と、この切込み送り量演算手段で
演算された切込み送り量に基づき、上記外径研削用砥石
及び内径研削用砥石をワークの外周面と内周面にそれぞ
れ同時に圧接させるように上記外径研削用切込み手段及
び内径研削用切込み手段の作動を制御する切込み制御手
段とを備えたことを特徴とする研削装置。2. A grinding device having a plurality of supporting members rotatably supporting a cylindrical work in a state of contacting the peripheral surface of the cylindrical work, wherein a rotation driving means for the outer diameter grinding rotates a grinding wheel for the outer diameter grinding. And an outer diameter grinding notch means for performing a cutting feed so as to press the outer diameter grinding wheel against the work, an inner diameter grinding rotation driving means for rotating the inner diameter grinding wheel, and the inner diameter grinding wheel to the work. A cutting means for inner diameter grinding which performs a cutting feed in the direction of pressing, and a cutting feed amount for correcting and calculating a cutting feed amount of both grinding wheels based on a movement amount of a work rotation center caused by grinding by the above outer diameter grinding wheel. Based on the calculating means and the cutting feed amount calculated by the cutting feed amount calculating means, the outer diameter grinding wheel and the inner diameter grinding wheel are simultaneously pressed against the outer peripheral surface and the inner peripheral surface of the work, respectively. A grinding control device for controlling the operation of the cutting means for outer diameter grinding and the cutting means for inner diameter grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22876093A JP3148054B2 (en) | 1993-09-14 | 1993-09-14 | Grinding method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22876093A JP3148054B2 (en) | 1993-09-14 | 1993-09-14 | Grinding method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0780763A JPH0780763A (en) | 1995-03-28 |
| JP3148054B2 true JP3148054B2 (en) | 2001-03-19 |
Family
ID=16881403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22876093A Expired - Fee Related JP3148054B2 (en) | 1993-09-14 | 1993-09-14 | Grinding method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3148054B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6241185B2 (en) * | 2013-10-09 | 2017-12-06 | 株式会社ジェイテクト | Centerless shoe grinding simulation apparatus and centerless shoe grinding simulation method |
| JP6337475B2 (en) * | 2014-01-21 | 2018-06-06 | 株式会社ジェイテクト | Centerless shoe grinding simulation equipment |
| JP6256069B2 (en) * | 2014-02-07 | 2018-01-10 | 株式会社ジェイテクト | Centerless shoe grinding simulation apparatus and centerless shoe grinding simulation method |
| JP6430217B2 (en) * | 2014-11-12 | 2018-11-28 | トーヨーエイテック株式会社 | Profile grinding machine |
-
1993
- 1993-09-14 JP JP22876093A patent/JP3148054B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0780763A (en) | 1995-03-28 |
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