JP2002346888A - One-directional grinding method for workpiece - Google Patents
One-directional grinding method for workpieceInfo
- Publication number
- JP2002346888A JP2002346888A JP2001150226A JP2001150226A JP2002346888A JP 2002346888 A JP2002346888 A JP 2002346888A JP 2001150226 A JP2001150226 A JP 2001150226A JP 2001150226 A JP2001150226 A JP 2001150226A JP 2002346888 A JP2002346888 A JP 2002346888A
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- Prior art keywords
- grindstone
- work
- grinding
- height
- amount
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- 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.)
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- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、工作機械に使用さ
れるリニアガイドの角溝案内レ−ルあるいは函型スライ
ダ、打ち抜きパンチ金型の可動側角型（雄型）、クラン
クシャフトの溝切り研削または磨きに適した研削方法に
関する。また、本発明は、表面仕上がりが良好で、摩擦
抵抗が小さく、光沢の高い加工物を与えるワ−クの一方
向研削方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a square guide rail or box type slider for a linear guide used in a machine tool, a movable side square type (male type) of a punching die, and a groove of a crankshaft. The present invention relates to a grinding method suitable for grinding or polishing. The present invention also relates to a one-way grinding method for a work which provides a workpiece having good surface finish, low frictional resistance and high gloss.
【０００２】[0002]
【従来の技術】金属工作機械装置として、例えば、ワ−
クを載置したテ−ブルを左右に往復移動させ、回転する
砥石とワ−クとをＮＣ制御により上下方向および砥石軸
と平行な前後方向に相対的に移動させてワ−クの表面を
研削する研削盤は知られている（特開昭５５−８３５６
７号、同５９−５９３４９号、同６１−１７３８５１
号、特開平４−１３５５２号、特開２０００−７１１５
７号、特許第２９７０７２５号）。図３と図４に平面研
削盤の一例を示す。これら図において、１は平面研削装
置、２はワ−ク、３は砥石、４は水平方向（Ｘ軸方向）
に往復移動可能なテ−ブル、５は作業台ユニット、６は
電磁チャック、７は前後方向（Ｚ軸方向）に往復移動可
能なサドル、８は操作盤、８ｂは砥石上下切り込み手動
パルス発生器ボタン、９はコラム、１０は砥石頭、１１
は砥石軸、１２は砥石３を垂直方向（Ｙ軸方向）に移動
する昇降機構、１３はモ−タ−、１４は螺合体、１５は
ネジ軸、１６は軸受、１７は安全保護カバ−、１８は研
削液供給ノズル、１９はベッド、２０はタンク、２１は
フィルタ−、２２はポンプ、２３は砥石軸モ−タ−であ
る。2. Description of the Related Art As a metal machine tool device, for example,
The table on which the work is placed is reciprocated left and right, and the rotating grindstone and the work are relatively moved in the vertical direction and in the front-rear direction parallel to the grindstone axis by the NC control, so that the surface of the work is moved. A grinding machine for grinding is known (JP-A-55-8356).
No. 7, 59-59349, 61-173851
JP-A-4-13552, JP-A-2000-7115
No. 7, Patent No. 2970725). 3 and 4 show an example of a surface grinder. In these figures, 1 is a surface grinding device, 2 is a work, 3 is a grindstone, and 4 is a horizontal direction (X-axis direction).
Table 5 is a worktable unit, 6 is an electromagnetic chuck, 7 is a saddle that can reciprocate in the front-rear direction (Z-axis direction), 8 is an operation panel, and 8b is a grinding wheel up / down manual pulse generator. Button, 9 is column, 10 is grinding head, 11
Is a whetstone shaft, 12 is an elevating mechanism for moving the whetstone 3 in the vertical direction (Y-axis direction), 13 is a motor, 14 is a screw body, 15 is a screw shaft, 16 is a bearing, 17 is a safety protection cover, 18 is a grinding fluid supply nozzle, 19 is a bed, 20 is a tank, 21 is a filter, 22 is a pump, and 23 is a grindstone motor.
【０００３】図３に示す研削装置においては、テ−ブル
は油圧シリンダにより移動されるが、近時、テ−ブルの
移動速度を速くすることが求められ、テ−ブルの往復駆
動にリニアモ−タを利用することが提案され、かつ、実
用化されている（特開平８−１９２３２６号、同９−２
８０７４号、同１１−２６６５７７号、同１１−２６２
８３２号、特開２０００−１９８０４０号、同２００１
−９７１８号）。リニアモ−タ−駆動テ−ブルはパ−ソ
ナルコンピュ−タからのパルス指令によって制御されて
おり、最高速度、平均加減速度、加減速カ−ブを自由に
変えることができる。In the grinding apparatus shown in FIG. 3, the table is moved by a hydraulic cylinder. Recently, however, it has been required to increase the moving speed of the table. It has been proposed and has been put to practical use (Japanese Patent Laid-Open Nos. 8-192326 and 9-2).
Nos. 8074, 11-266577, 11-262
No. 832, JP-A-2000-198040, 2001
No.-9718). The linear motor drive table is controlled by a pulse command from a personal computer, and can freely change the maximum speed, average acceleration / deceleration, and acceleration / deceleration curve.
【０００４】また、図５に示す研削装置１では、サドル
７がＺ方向に往復自在にフレ−ムに支持され、テ−ブル
４がサドル７上を左右方向（Ｘ軸方向）に、コラム９に
より砥石頭が上下方向（Ｙ軸方向）に移動自在に設けら
れている。この平面研削盤では、テ−ブル４上のチャッ
クにワ−ク２を固定し、サドル７を移動させてＺ軸方向
の位置を決め、テ−ブル４をＸ軸方向に往復移動させる
過程で砥石頭の回転している砥石をワ−クに接触させ、
砥石頭をＹ軸方向に送りをかけてワ−クを研削する。In the grinding apparatus 1 shown in FIG. 5, a saddle 7 is supported on a frame so as to be reciprocable in the Z direction, and a table 4 is moved on the saddle 7 in the left-right direction (X-axis direction). Thereby, the grindstone head is provided movably in the vertical direction (Y-axis direction). In this surface grinding machine, the work 2 is fixed to the chuck on the table 4, the saddle 7 is moved to determine the position in the Z-axis direction, and the table 4 is reciprocated in the X-axis direction. Bring the rotating grindstone of the grindstone head into contact with the work,
The work is ground by feeding the grinding head in the Y-axis direction.
【０００５】回転する砥石を用いてワ−クを研削する際
の加工軌跡例を図６に示す（株式会社 岡本工作機械製
作所のコラム形精密平面研削盤ＰＳＧカタログの２頁：
２０００年９月発行）。[0005] Fig. 6 shows an example of a machining locus for grinding a workpiece using a rotating grindstone (page 2 of the column type precision surface grinder PSG catalog of Okamoto Machine Tool Works, Ltd .:
Published September 2000).
【０００６】ワ−クを載置したテ−ブルを左右に往復移
動させ、回転する砥石とワ−クとをＮＣ制御により上下
方向および砥石軸と平行な前後方向に相対的に移動させ
てワ−クの表面を研削するプランジ研削を示すステップ
切り込みにおいて、回転する砥石はテ−ブルの左右反転
ごとに指定した量（１回の削り代α）だけ切り込み、目
標とした研削量となるまでテ−ブル反転が行われ、研削
を行う。The table on which the work is placed is reciprocated right and left, and the rotating grindstone and the work are relatively moved vertically by NC control and in the front-rear direction parallel to the grindstone axis. In the step cutting indicating plunge grinding to grind the surface of the work, the rotating grindstone cuts by the specified amount (one cutting allowance α) each time the table is turned left and right until the target grinding amount is reached. -The tumbling is performed and grinding is performed.
【０００７】トラバ−ス研削においては、テ−ブル左右
反転ごとに指定した量だけコラムを前後に移動すること
により砥石を前後に移動し、ワ−クの前後両端で切り込
みを行う。バイアス研削方法においては、テ−ブルの左
右反転に関係なく、指定した速度で砥石を前後移動し、
ワ−クの前後両端で切り込みを行う。ワ−クの粗研削に
よく用いられるシフトプランジ研削方法においては、前
後に砥石幅よりわずかに少なく設定されたステップ幅づ
つシフトしながらプランジ研削を繰り返す。In traverse grinding, the grindstone is moved back and forth by moving the column back and forth by a specified amount each time the table is inverted, and cuts are made at both front and rear ends of the work. In the bias grinding method, the grinding wheel is moved back and forth at the specified speed regardless of whether the table
Make cuts at both ends of the work. In a shift plunge grinding method often used for rough grinding of a work, plunge grinding is repeated while shifting forward and backward by a step width set slightly smaller than a grindstone width.
【０００８】これら研削方法は、単独で、または２種以
上組み合わせてワ−クの研削が行われる。図６は、粗研
削にシフトプランジ研削方法を、精密研削にトラバ−ス
研削方法を用いたサイクル線図を示す（株式会社 岡本
工作機械製作所のコラム形精密平面研削盤ＰＳＧカタロ
グの８頁：２０００年９月発行）。In these grinding methods, the workpiece is ground alone or in combination of two or more. FIG. 6 shows a cycle diagram in which the shift plunge grinding method is used for rough grinding and the traverse grinding method is used for precision grinding (page 8 of the column type precision surface grinding machine PSG catalog of Okamoto Machine Tool Works, Ltd .: 2000). Published September 2015).
【０００９】これら従来の研削方法では、テ−ブルの左
右反転のいずれでもワ−ク前後の両端で砥石による切り
込みが行われるか、あるいは片側で切り込みが行われ、
帰りは砥石がわずかにワ−ク表面に接した状態となって
いる。また、トラバ−ス研削においては、ワ−クの前後
で切り込みが行われる。ワ−ク研削時の砥石の回転方向
は、時計廻りの一方向であるので、テ−ブルの右反転に
よるテ−ブルが左から右方向へ移動する際はワ−クの進
行方向は砥石の回転方向と逆であるが、テ−ブルの左反
転によるテ−ブルが右から左方向へ移動する際はワ−ク
の進行方向は砥石の回転方向と同一となる。[0009] In these conventional grinding methods, a cut is made by a grindstone at both ends before and after the work, or a cut is made on one side, in either case of reversing the table from side to side.
On the way back, the grindstone is slightly in contact with the work surface. In traverse grinding, a cut is made before and after the work. The direction of rotation of the grindstone during work grinding is one direction clockwise, so that when the table is moved from left to right by reversing the table to the right, the direction of travel of the grindstone is Although the direction of rotation is opposite, when the table is moved from right to left by reversing the table left, the working direction of the work is the same as the direction of rotation of the grindstone.
【００１０】よって、テ−ブル往復とも研削加工された
ワ−クに毛羽立ちが生じ易く、特に両側切り込みでは毛
羽立ちが大きく、精研削が必要とされる要因にもなって
いる。また、この毛羽立ちが加工ワ−クの動摩擦係数を
高める要因となり、加工ワ−クがリニアガイドの函型ス
ライダの際は、角ガイドレ−ルとの滑りを悪くし、スラ
イドの寿命を短くする。加工ワ−クがパンチ工具の可動
側型板である場合、中央を角に刳り貫いた角固定側ダイ
（雌型）上にパンチされる金属板を載せ、前記可動側型
板を打ち降ろして角穴を金属板に形成する際の可動側型
板と角固定側ダイとの滑りを悪くし、スライドの寿命を
短くする。[0010] Therefore, the fluffed work is liable to be generated in the work which has been ground in both the table reciprocation, and particularly in the case of cutting on both sides, the fuzz is large, which is a factor that requires precise grinding. Further, the fluffing increases the dynamic friction coefficient of the work, and when the work is a box-shaped slider of a linear guide, the sliding with the square guide rail is deteriorated, and the life of the slide is shortened. When the working work is a movable die plate of a punch tool, a metal plate to be punched is placed on a fixed die (female die) having a center hollowed in a corner, and the movable die plate is shot down. When the square hole is formed in the metal plate, the sliding between the movable die plate and the square fixed die is made poor, and the life of the slide is shortened.
【００１１】[0011]
【発明が解決しようとする課題】本発明は、研削時間を
従来方法と比較してさほど長くしないで、表面光沢に優
れ、動摩擦係数が小さい加工ワ−クを与える研削方法を
提供するものである。SUMMARY OF THE INVENTION The present invention is to provide a grinding method which provides a work having an excellent surface gloss and a low dynamic friction coefficient without making the grinding time much longer than that of the conventional method. .
【００１２】[0012]
【課題を解決するための手段】本発明の請求項１は、ワ
−クを載置したテ−ブルを左右に往復移動させ、回転す
る砥石とワ−クとをＮＣ制御により上下方向および砥石
軸と平行な前後方向に相対的に移動させてワ−クの表面
を研削する方法において、テ−ブルが右反転し、テ−ブ
ルが左から右方向に往移動する際は砥石を下降させて指
定量だけワ−クへの切り込みを行い、テ−ブルが左反転
するまでワ−クの研削を行い、テ−ブルが左反転し、テ
−ブルが右から左方向に復移動する際はワ−クに接触し
ない高さに砥石を上昇させてワ−クの研削を行わないこ
とを特徴とする、ワ−クの一方向研削方法を提供するも
のである。According to a first aspect of the present invention, a table on which a work is placed is reciprocally moved right and left, and a rotating grindstone and the work are vertically moved and grindstones are controlled by NC control. In the method of grinding the surface of the work by relatively moving in the front-rear direction parallel to the axis, the table is reversed rightward, and when the table moves from left to right, the grindstone is lowered. When the table is cut by the specified amount and the work is ground until the table is turned left, the table is turned left and the table moves backward from right to left. The present invention provides a one-way grinding method for a work, characterized in that the work is not ground by raising the grindstone to a height not in contact with the work.
【００１３】ワ−クが一方向に揃って研削されるので、
毛羽立ちがなく、表面の均一性に優れ、高い光沢の加工
ワ−クが得られる。Since the work is ground in one direction,
It has no fluff, has excellent surface uniformity, and has a high-gloss processed work.
【００１４】本発明の請求項２は、上記ワ−クの一方向
研削方法において、テ−ブルの一往復移動時の指定した
切り込み量をα、エヤ−カット高さをβ、切り込み回数
をｎ回（ｎは２以上の整数。）とすると、研削開始時の
砥石がテ−ブル右端で下降する量はαであり、テ−ブル
右反転時のテ−ブル左端で砥石が上昇する高さは(α＋
β)であり、２回目の切り込みを開始する際のテ−ブル
右端での砥石が下降する量は(２α＋β)であり、２回目
のテ−ブル左反転時の砥石が上昇する高さは(α＋β)で
あり、以下、テ−ブル反転回数がｎ回となるまでテ−ブ
ル右端での砥石の下降する量を(２α＋β)、テ−ブル左
反転時の砥石が上昇する高さを(α＋β)としてワ−クの
切り込み・研削を行うことを特徴とする。According to a second aspect of the present invention, in the method for one-way grinding of the work, the cut amount designated during one reciprocation of the table is α, the air cut height is β, and the number of cuts is n. If the number of rotations is n (n is an integer of 2 or more), the amount by which the grindstone descends at the right end of the table at the start of grinding is α, and the height at which the grindstone rises at the left end of the table when the table is reversed rightward Is (α +
β), the amount by which the grindstone descends at the right end of the table when starting the second cut is (2α + β), and the height at which the grindstone rises when reversing the second table left is ( α + β), and the amount by which the grindstone descends at the right end of the table until the number of table reversals reaches n is (2α + β), and the height at which the grindstone rises when the table is reversed left is (α + β) ) Is characterized in that the work is cut and ground.
【００１５】砥石の上下（昇降）移動幅を最小限に留め
ることにより研削時間が長くなるのを防いだ。By minimizing the vertical (up / down) movement width of the grindstone, the grinding time is prevented from becoming long.
【００１６】本発明の請求項３は、上記ワ−クの一方向
研削方法において、テ−ブルの移動速度は、ワ−クへの
砥石による切り込み・研削が行われる左方向から右方向
へのテ−ブル移動速度が０．１〜５ｍ／分、切り込み・
研削が行われない右方向から左方向への移動速度が３０
〜３００ｍ／分であることを特徴とする。According to a third aspect of the present invention, in the method for one-way grinding of the work, the moving speed of the table is changed from a left direction to a right direction in which the workpiece is cut and ground by a grindstone. Table moving speed is 0.1 to 5m / min.
The moving speed from right to left where grinding is not performed is 30
３００300 m / min.
【００１７】研削時は、砥石にワ−クの研削応力が負荷
されるので、テ−ブルの移動速度は従来と変わりがない
が、研削を行っていない帰り時は高速にテ−ブルを移動
できるので、従来方法と比較して研削時間が長くなるの
を防いだ。At the time of grinding, since the grinding stress of the work is applied to the grindstone, the moving speed of the table is the same as the conventional one, but the table is moved at a high speed on the way back without grinding. As a result, the grinding time was prevented from being longer than in the conventional method.
【００１８】本発明の請求項４は、テ−ブルの左反転ご
とに砥石を下降させ、ワ−クへの前端で切り込みを行
い、テ−ブルの右反転ごとに砥石をワ−クに接触しない
高さ上昇させ、コラムを前後に移動することにより砥石
を指定された量だけ前または後に移動して行う前記の一
方向トラバ−ス研削方法において、テ−ブルの一往復移
動時の指定した切り込み量をα、エヤ−カット高さをβ
とすると、研削開始時の砥石がテ−ブル右端で下降する
量はαであり、テ−ブル左反転時のテ−ブル左端で砥石
が上昇する高さは(α＋β)であり、２回目の切り込みを
開始する際のテ−ブル右端での砥石が下降する量は(α
＋β)であり、２回目のテ−ブル左反転時の砥石が上昇
する高さは(α＋β)であり、以下、ワ−クの後または前
の研削が終わるまでテ−ブル右端での砥石の下降する量
を(α＋β)、テ−ブル左反転時の砥石が上昇する高さを
(α＋β)としてワ−クの切り込み・研削を行うことを特
徴とする。A fourth aspect of the present invention is to lower the grindstone each time the table is turned to the left, make a cut at the front end of the work, and contact the grindstone with the work every time the table is turned to the right. In the one-way traverse grinding method described above, in which the height is raised and the grindstone is moved forward or backward by a specified amount by moving the column back and forth, the table is designated during one reciprocating movement of the table. The cutting depth is α and the air cut height is β
Then, the amount by which the grindstone descends at the right end of the table at the start of grinding is α, the height at which the grindstone rises at the left end of the table when the table is reversed to the left is (α + β), and the second time The amount of descent of the grinding wheel at the right end of the table when starting cutting is (α
+ Β), and the height at which the grindstone rises at the time of the second table left reversal is (α + β). Hereinafter, the grindstone at the right end of the table after grinding before or after the work is completed. The amount of descent is (α + β), and the height at which the grindstone rises when reversing the table left
It is characterized in that the work is cut and ground as (α + β).
【００１９】[0019]
【実施例】以下、図を用いて本発明をさらに詳細に説明
する。図１は、本発明の一実施例を示すプランジ研削方
法の砥石の軌跡を示す線図、図２はトラバ−ス研削時の
砥石の軌跡を示す線図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a diagram showing a locus of a grindstone in a plunge grinding method according to an embodiment of the present invention, and FIG. 2 is a diagram showing a locus of a grindstone during traverse grinding.
【００２０】砥石とワ−クとをＮＣ制御により上下方向
および砥石軸と平行な前後方向に相対的に移動させてワ
−クの表面を研削するリニアモ−タ駆動テ−ブル４を備
えるＮＣ研削盤を用い、ワ−クをプランジ研削加工する
には、ＮＣ制御操作盤８を用いて、加工プログラムより
プランジ加工を選択し、基準点、粗研削量、精研削量、
スパ−クアウト回数、ドレス回数、前後反転位置等の加
工条件を入力する。NC grinding provided with a linear motor driving table 4 for relatively moving the grindstone and the work vertically and in the front-rear direction parallel to the grindstone axis by NC control to grind the surface of the work. In order to perform plunge grinding of a work using a machine, the plunge machining is selected from a machining program using the NC control operation panel 8, and a reference point, a coarse grinding amount, a fine grinding amount,
Input the processing conditions such as the number of times of spark-out, the number of times of dressing, the reversal position before and after.
【００２１】テ−ブル４のチャック６にワ−ク２を載
せ、開始ボタンを押し、ワ−クを載置したテ−ブル４を
左右に往復移動させ、砥石を回転させ、砥石を切り込み
開始位置に下降移動し、回転する砥石３を指定された切
り込み量α分、下降させて砥石による切込をテ−ブル右
端側より開始させる。テ−ブル４が左側（−Ｘ方向）か
ら右側（＋Ｘ方向）へ移動することによりワ−クは研削
される。The work 2 is placed on the chuck 6 of the table 4, the start button is pressed, the table 4 on which the work is placed is reciprocated right and left, the grindstone is rotated, and the cutting of the grindstone is started. The grindstone 3 is moved down to the position, and the rotating grindstone 3 is lowered by the designated cutting amount α to start cutting with the grindstone from the right end of the table. The work is ground by moving the table 4 from the left side (−X direction) to the right side (+ X direction).
【００２２】本発明の一方向研削方法において、テ−ブ
ルが左反転し、左から右方向にテ−ブルが往移動する際
は砥石を下降させて指定量だけワ−クへの切り込みを行
い、テ−ブルが右反転するまでワ−クの研削を行い、テ
−ブルが右反転し、右から左方向に復移動する際はワ−
クに接触しない高さに砥石を上昇させてワ−クの研削を
行わない。In the one-way grinding method of the present invention, when the table is reversed leftward and the table moves forward from left to right, the grindstone is lowered to cut into the work by a specified amount. Grind the work until the table is turned to the right. When the table turns to the right and move backward from right to left,
Do not grind the work by raising the grindstone to a height that does not contact the workpiece.
【００２３】テ−ブルの一往復移動時の指定した切り込
み量をα、エヤ−カット高さをβ、切り込み回数をｎ回
（ｎは２以上の整数。）とすると、研削開始時の砥石が
テ−ブル右端で下降する量はαであり、テ−ブル左反転
時のテ−ブル左端で砥石が上昇する高さは(α＋β)であ
り、２回目の切り込みを開始する際のテ−ブル右端での
砥石が下降する量は(２α＋β)であり、２回目のテ−ブ
ル左反転時の砥石が上昇する高さは(α＋β)であり、以
下、テ−ブル反転回数がｎ回となるまでテ−ブル右端で
の砥石の下降する量を(２α＋β)、テ−ブル左反転時の
砥石が上昇する高さを(α＋β)としてワ−クの切り込み
・研削を行う。Assuming that the designated cut amount during one reciprocating movement of the table is α, the air cut height is β, and the number of cuts is n (n is an integer of 2 or more), the grinding wheel at the start of grinding is The amount of descent at the right end of the table is α, and the height at which the grindstone rises at the left end of the table when the table is reversed to the left is (α + β), which is the table used when starting the second cut. The amount by which the grindstone descends at the right end is (2α + β), the height at which the grindstone rises at the time of the second table left reversal is (α + β), and hereinafter the number of table reversals is n. The cutting / grinding of the work is performed by setting the amount by which the grindstone descends at the right end of the table to (2α + β) and the height by which the grindstone rises when the table is reversed to the left (α + β).
【００２４】テ−ブル１往復時の１回の粗研削量αは、
０．１〜１０ｍｍ、精研削量αは、０．００１〜０．０
１ｍｍ、エヤ−カット高さβは、０．０１〜０．０５ｍ
ｍが一般である。テ−ブル４の移動速度は、ワ−ク２へ
の砥石３による切り込み・研削が行われる左方向から右
方向へのテ−ブル移動速度が０．１〜５ｍ／分、切り込
み・研削が行われない右方向から左方向へのテ−ブル移
動速度が３０〜３００ｍ／分である。テ−ブル４の駆動
は、リニアモ−タ駆動が好ましい。The coarse grinding amount α per one reciprocation of the table is:
0.1 to 10 mm, fine grinding amount α is 0.001 to 0.0
1 mm, air cut height β is 0.01 to 0.05 m
m is general. The moving speed of the table 4 is from 0.1 to 5 m / min from left to right where the cutting and grinding is performed by the grindstone 3 on the work 2. The moving speed of the table from the right direction to the left direction is 30 to 300 m / min. The drive of the table 4 is preferably a linear motor drive.
【００２５】シフトプランジ研削する際は、砥石３を前
後に砥石軸よりわずかに少なく設定されたステップ幅づ
つ、砥石をワ−ク表面より上昇させて離した状態でシフ
トしながら上記一方向のプランジ研削を行う。When the shift plunge grinding is performed, the plunge is moved in the above-described one direction while the grindstone 3 is shifted forward and backward by a step width set slightly smaller than the grindstone axis while being lifted from the work surface and separated therefrom. Perform grinding.
【００２６】図２に示す本発明のトラバ−ス研削方法
は、テ−ブル４の左反転ごとに砥石を下降させ、ワ−ク
への前端で切り込みを行い、テ−ブルの右反転ごとに砥
石をワ−クに接触しない高さ上昇させ、コラム９を前ま
たは後（Ｚ方向）に移動することにより砥石３を指定さ
れた量だけ前または後に移動して行う一方向トラバ−ス
研削方法である。In the traverse grinding method of the present invention shown in FIG. 2, the grindstone is lowered each time the table 4 is turned to the left, a cut is made at the front end of the work, and each time the table 4 is turned to the right. A one-way traverse grinding method in which the grindstone 3 is moved up or down by a specified amount by moving the column 9 forward or backward (Z direction) by raising the grindstone so as not to contact the work. It is.
【００２７】この一方向トラバ−ス研削方法において
は、テ−ブル３の一往復移動時の指定した切り込み量を
α、エヤ−カット高さをβとすると、研削開始時の砥石
３がテ−ブル４右端で下降する量はαであり、テ−ブル
左反転時のテ−ブル左端で砥石が上昇する高さは(α＋
β)であり、２回目の切り込みを開始する際のテ−ブル
右端での砥石が下降する量は(α＋β)であり、２回目の
テ−ブル左反転時の砥石が上昇する高さは(α＋β)であ
り、以下、ワ−ク２の後または前の研削が終わるまでテ
−ブル右端での砥石の下降する量を(α＋β)、テ−ブル
左反転時の砥石が上昇する高さを(α＋β)としてワ−ク
の切り込み・研削を行う。In this one-way traverse grinding method, assuming that the specified cutting depth during one reciprocating movement of the table 3 is α and the air-cut height is β, the grinding wheel 3 at the start of grinding starts to move the table 3. The descending amount at the right end of the table 4 is α, and the height at which the grindstone rises at the left end of the table when the table is reversed to the left is (α +
β), the amount by which the grindstone descends at the right end of the table when starting the second cut is (α + β), and the height at which the grindstone rises when reversing the second table left is ( α + β), and the amount of descent of the grindstone at the right end of the table until the grinding after or before work 2 is completed (α + β), and the height at which the grindstone rises when the table is turned to the left Cut and grind the work as (α + β).
【００２８】即ち、テ−ブル４の左反転ごとに砥石を下
降（１回目はα、２回目以降はα＋β）させ、ワ−クへ
の前端で切り込みを行い、テ−ブル４の右反転ごとに砥
石をワ−クに接触しない高さ（α＋β）上昇させ、コラ
ム９を前後に移動させることにより砥石を指定された量
だけ前または後に移動して行う。That is, the grindstone is lowered every time the table 4 is turned to the left (α for the first time, α + β for the second and subsequent times), a cut is made at the front end of the work, and every time the table 4 is turned to the right. Then, the grindstone is raised by a height (α + β) not contacting the work, and the column 9 is moved back and forth to move the grindstone forward or backward by a specified amount.
【００２９】この一方向トラバ−ス研削を同じワ−クに
ｎ回行うときは、２回目以降、ｎ回までの研削は、１回
目の一方向トラバ−ス研削が終了したらモ−タ１３を駆
動させてて砥石３を（α＋β）の高さ上昇させ、つい
で、コラム９を後または前に移動させて１回目の切り込
み開始位置まで砥石を戻し、テ−ブル４の左反転ごとに
砥石を下降（２α＋β）させ、ワ−ク２への前端で切り
込みを行い、テ−ブル４の右反転ごとに砥石をワ−クに
接触しない高さ（α＋β）上昇させ、コラム９を前後に
移動させることにより砥石を指定された量だけ前または
後に移動して行う。When this one-way traverse grinding is performed n times in the same work, the motors 13 are used after the first one-way traverse grinding is completed for the second and subsequent n times. By driving, the grindstone 3 is raised to the height of (α + β). Then, the column 9 is moved backward or forward to return the grindstone to the first cutting start position, and the grindstone is turned every time the table 4 is turned to the left. Lower (2α + β), make a cut at the front end of the work 2, raise the grindstone to a height (α + β) that does not contact the work, and move the column 9 back and forth every time the table 4 is turned to the right. This moves the grindstone forward or backward by a specified amount.
【００３０】加工されるワ−ク素材としては、鉄鋼、ス
テンレス、黄銅等の金属、ガラス、プラスチック、セラ
ミック等が挙げられる。Examples of the work material to be processed include metals such as iron and steel, stainless steel and brass, glass, plastic and ceramic.
【００３１】上記ワ−クの加工例では、砥石の回転方向
とワ−クの移動方向が逆の場合（アップカット）に一方
向の研削を行う例を挙げたが、砥石の回転方向とワ−ク
の移動方向が同一の場合（ダウンカット）に一方向の研
削を行うようにすることも可能である。例えば、砥石の
回転方向を逆時計廻り方向としたり、あるいは、砥石の
回転方向とワ−クの移動方向が同一の場合のテ−ブル反
転時に砥石が下降し、砥石の回転方向とワ−クの移動方
向が逆の場合のテ−ブル反転時に砥石が上昇するように
加工ソフトをプログラミングしてもよい。In the working example of the above-mentioned work, an example has been described in which the grinding direction is performed in one direction when the rotating direction of the grinding wheel and the moving direction of the work are opposite (up cut). It is also possible to perform grinding in one direction when the moving directions of the workpieces are the same (down cut). For example, the rotating direction of the grindstone is set to the counterclockwise direction, or the grindstone descends when reversing the table when the rotating direction of the grindstone and the moving direction of the work are the same, and the rotating direction of the grindstone and the work The machining software may be programmed so that the grindstone rises when the table is reversed when the moving direction of the table is reversed.
【００３２】[0032]
【発明の効果】本発明のワ−クの一方向研削方法は、鉋
で木材を一方向にのみ削る方法に類似して、加工された
ワ−クに毛羽立ちがなく、動摩擦係数も小さく、光沢が
高い、表面の均一性が良好な加工ワ−クが得られる。The unidirectional grinding method of the present invention is similar to the method of cutting wood in only one direction with a plane, and the processed work has no fluff, a low coefficient of dynamic friction, and a low gloss. And a processed work with good surface uniformity can be obtained.
【図１】 本発明の一方向プランジ研削方法における砥
石の軌跡を示す線図である。FIG. 1 is a diagram showing a locus of a grindstone in a one-way plunge grinding method of the present invention.
【図２】 本発明の一方向トラバ−ス研削方法における
砥石の軌跡を示す線図である。FIG. 2 is a diagram showing a locus of a grinding wheel in the one-way traverse grinding method of the present invention.
【図３】 平面研削盤の斜視図である（公知）。FIG. 3 is a perspective view of a surface grinder (known).
【図４】 平面研削盤の側面図である（公知）。FIG. 4 is a side view of a surface grinder (known).
【図５】 別タイプの平面研削盤の斜視図である（公
知）。FIG. 5 is a perspective view of another type of surface grinding machine (known).
【図６】 各種研削パタ−ンの砥石の軌跡を示す線図で
ある。FIG. 6 is a diagram showing trajectories of grinding wheels of various grinding patterns.
【図７】 あるワ−クの研削サイクルを示す線図であ
る。FIG. 7 is a diagram showing a grinding cycle of a certain work.
１ 平面研削装置 ２ ワ−ク ３ 砥石 ４，４’ テ−ブル ６ 電磁チャック ７ サドル ９ コラム １０ 砥石頭 １９ ベッド DESCRIPTION OF SYMBOLS 1 Surface grinding apparatus 2 Work 3 Grinding stone 4, 4 'table 6 Electromagnetic chuck 7 Saddle 9 Column 10 Grinding stone head 19 Bed
Claims (4)
移動させ、回転する砥石とワ−クとをＮＣ制御により上
下方向および砥石軸と平行な前後方向に相対的に移動さ
せてワ−クの表面を研削する方法において、テ−ブルが
右反転し、テ−ブルが左から右方向に往移動する際は砥
石を下降させて指定量だけワ−クへの切り込みを行い、
テ−ブルが左反転するまでワ−クの研削を行い、テ−ブ
ルが左反転し、テ−ブルが右から左方向に復移動する際
はワ−クに接触しない高さに砥石を上昇させてワ−クの
研削を行わないことを特徴とする、ワ−クの一方向研削
方法。1. A table on which a work is placed is reciprocated right and left, and a rotating grindstone and a work are relatively moved in a vertical direction and a front-rear direction parallel to a grindstone axis by NC control. In the method of grinding the surface of a work, the table is turned to the right, and when the table moves from left to right, the grindstone is lowered to cut into the work by a specified amount. ,
Grind the work until the table is turned left, and when the table is turned left and the table moves from right to left, the grindstone is raised to a height that does not touch the work. A one-way grinding method for a work, characterized in that the work is not ground.
込み量をα、エヤ−カット高さをβ、切り込み回数をｎ
回（ｎは２以上の整数。）とすると、研削開始時の砥石
がテ−ブル右端で下降する量はαであり、テ−ブル左反
転時のテ−ブル左端で砥石が上昇する高さは(α＋β)で
あり、２回目の切り込みを開始する際のテ−ブル右端で
の砥石が下降する量は(２α＋β)であり、２回目のテ−
ブル左反転時の砥石が上昇する高さは(α＋β)であり、
以下、テ−ブル反転回数がｎ回となるまでテ−ブル右端
での砥石の下降する量を(２α＋β)、テ−ブル左反転時
の砥石が上昇する高さを(α＋β)としてワ−クの切り込
み・研削を行うことを特徴とする、請求項１に記載のワ
−クの一方向研削方法。2. The cut amount specified during one reciprocating movement of the table is α, the air cut height is β, and the number of cuts is n.
If the number of rotations is n (n is an integer of 2 or more), the amount by which the grindstone descends at the right end of the table at the start of grinding is α, and the height at which the grindstone rises at the left end of the table when the table is reversed to the left. Is (α + β), the amount of descent of the grindstone at the right end of the table at the start of the second cut is (2α + β), and the second
The height at which the grindstone rises when the bull left is inverted is (α + β),
In the following, the amount of descent of the grindstone at the right end of the table until the number of times of table reversal becomes n is (2α + β), and the height at which the grindstone rises when reversing the table left is (α + β). 2. The method of claim 1, further comprising cutting and grinding the workpiece.
による切り込み・研削が行われる左方向から右方向への
テ−ブル移動速度が０．１〜５ｍ／分、切り込み・研削
が行われない右方向から左方向への移動速度が３０〜３
００ｍ／分であることを特徴とする、請求項１または２
に記載のワ−クの一方向研削方法。3. The moving speed of the table is such that the moving speed of the table from left to right, at which cutting and grinding is performed on the work by a grindstone, is 0.1 to 5 m / min. The moving speed from the right to the left where no movement is performed is 30 to 3
3. The method according to claim 1, wherein the speed is 00 m / min.
2. The unidirectional grinding method of a work according to claim 1.
せ、ワ−クへの前端で切り込みを行い、テ−ブルの右反
転ごとに砥石をワ−クに接触しない高さ上昇させ、コラ
ムを前後に移動することにより砥石を指定された量だけ
前または後に移動して行う請求項１に記載の一方向トラ
バ−ス研削方法において、テ−ブルの一往復移動時の指
定した切り込み量をα、エヤ−カット高さをβとする
と、研削開始時の砥石がテ−ブル右端で下降する量はα
であり、テ−ブル左反転時のテ−ブル左端で砥石が上昇
する高さは(α＋β)であり、２回目の切り込みを開始す
る際のテ−ブル右端での砥石が下降する量は(α＋β)で
あり、２回目のテ−ブル左反転時の砥石が上昇する高さ
は(α＋β)であり、以下、ワ−クの後または前の研削が
終わるまでテ−ブル右端での砥石の下降する量を(α＋
β)、テ−ブル左反転時の砥石が上昇する高さを(α＋
β)としてワ−クの切り込み・研削を行うことを特徴と
する、ワ−クの一方向トラバ−ス研削方法。4. The grindstone is lowered each time the table is turned to the left, a cut is made at the front end of the work, and the grindstone is raised every time the table is turned to the right so as not to contact the work. The one-way traverse grinding method according to claim 1, wherein the grindstone is moved forward or backward by a specified amount by moving the column back and forth. Where α is the aircut height and β is the air cut height, the amount by which the grindstone descends at the right end of the table at the start of grinding is α
The height at which the grindstone rises at the left end of the table when the table is reversed to the left is (α + β), and the amount by which the grindstone descends at the right end of the table when starting the second incision is ( α + β), and the height at which the grindstone rises during the second table left reversal is (α + β). Hereinafter, the grindstone at the right end of the table until grinding after or before the work is completed The descending amount is (α +
β), the height at which the grindstone rises when turning the table left is (α +
A one-way traverse grinding method for a work, characterized in that the work is cut and ground as β).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001150226A JP4855587B2 (en) | 2001-05-21 | 2001-05-21 | One-way grinding method of workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001150226A JP4855587B2 (en) | 2001-05-21 | 2001-05-21 | One-way grinding method of workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
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| JP4855587B2 JP4855587B2 (en) | 2012-01-18 |
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ID=18995272
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006167872A (en) * | 2004-12-16 | 2006-06-29 | Jtekt Corp | Grinding method and grinder |
| JP2010069564A (en) * | 2008-09-18 | 2010-04-02 | Sumitomo Heavy Ind Ltd | Grinding method |
| TWI558498B (en) * | 2012-12-25 | 2016-11-21 | Sumitomo Heavy Industries | Grinding method |
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| JPH0899257A (en) * | 1994-09-30 | 1996-04-16 | Toyoda Mach Works Ltd | Grinding device |
| JP2001179519A (en) * | 1999-12-24 | 2001-07-03 | Toyoda Mach Works Ltd | Cutting work method and nc data originating device for carrying out the method |
| JP2001225249A (en) * | 2000-02-17 | 2001-08-21 | Waida Seisakusho:Kk | Grinding method |
| JP2001246535A (en) * | 2000-03-03 | 2001-09-11 | Toyoda Mach Works Ltd | Multistage feeding grinding work method in end surface thrust grinding |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006167872A (en) * | 2004-12-16 | 2006-06-29 | Jtekt Corp | Grinding method and grinder |
| JP2010069564A (en) * | 2008-09-18 | 2010-04-02 | Sumitomo Heavy Ind Ltd | Grinding method |
| TWI558498B (en) * | 2012-12-25 | 2016-11-21 | Sumitomo Heavy Industries | Grinding method |
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| JP4855587B2 (en) | 2012-01-18 |
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