JPH068142A - Correction method for cup grinding wheel - Google Patents
Correction method for cup grinding wheelInfo
- Publication number
- JPH068142A JPH068142A JP19002992A JP19002992A JPH068142A JP H068142 A JPH068142 A JP H068142A JP 19002992 A JP19002992 A JP 19002992A JP 19002992 A JP19002992 A JP 19002992A JP H068142 A JPH068142 A JP H068142A
- Authority
- JP
- Japan
- Prior art keywords
- grindstone
- axis
- grinding
- cup
- machining
- 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
- 238000000034 method Methods 0.000 title claims description 11
- 238000003754 machining Methods 0.000 claims abstract description 46
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 230000007423 decrease Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、円筒研削盤によってワ
ークの外径部のトラバース研削と、必要に応じてその端
面の研削とを行うためのカップ砥石の修正方法に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of correcting a cup grindstone for performing traverse grinding of an outer diameter portion of a work by a cylindrical grinding machine and grinding of an end surface of the work as needed.
【０００２】[0002]
【従来の技術】本出願人は、平成４年４月２０日付に
て、砥石部の底面の砥石面が砥石軸に垂直な平面に対し
て僅かに傾斜してテーパ凹面状に形成されているカップ
砥石を使用し、砥石軸の軸心を研削盤の加工軸心と直交
する平面に対して僅かに傾斜させて、ワークの外径部を
トラバース研削したり、砥石部の外周砥石面を砥石軸の
軸心と同心の仮想円筒面に対して僅かに傾斜させてテー
パ面状に形成して、カップ砥石の砥石軸の軸心を上記の
ように傾斜させることにより、砥石部の研削側の外周砥
石面を加工軸心と直交させて、ワークの端面も併せて研
削できる方法に関する出願を行った。2. Description of the Related Art The applicant of the present invention has dated April 20, 1992 that the grindstone surface of the bottom surface of the grindstone portion is formed in a tapered concave shape with a slight inclination with respect to a plane perpendicular to the grindstone axis. Use a cup grindstone and slightly incline the axis of the grindstone axis with respect to the plane orthogonal to the machining axis of the grinder to traverse the outer diameter of the workpiece or grind the outer grindstone surface of the grindstone. Formed into a tapered surface by slightly inclining with respect to a virtual cylindrical surface concentric with the axis of the shaft, and by inclining the axis of the wheel axis of the cup wheel as described above, the grinding side of the wheel portion We filed an application for a method that allows the outer peripheral grindstone surface to be orthogonal to the machining axis and also grinds the end surface of the workpiece.
【０００３】上記のようにしてカップ砥石によるトラバ
ース研削を行うと、砥石面が加工軸心に対して傾斜する
ために、砥石面が加工軸心に対して平行な通常のカップ
砥石による研削方法に比較して、ワークの一回転に対す
る研削量が極めて少なくなって、砥石台に対する負荷が
小さくなる。このため、砥石の高速回転時における安定
性が高まって、研削精度が高まる。また、上記のように
して、砥石軸の軸心を加工軸心に対して傾斜させて、砥
石部の研削側の外周砥石面を加工軸心に対して直交させ
ると、トラバース研削を主体にしたカップ砥石によっ
て、ワークの端面の研削が可能となる。このように、カ
ップ砥石の砥石軸の軸心を加工軸心に直交する平面に対
して傾斜させて研削加工を行うと、上記したような種々
の利点が生ずる。When the traverse grinding with the cup grindstone is carried out as described above, the grindstone surface is inclined with respect to the machining axis, so that the grinding method with the ordinary cup grindstone in which the grindstone surface is parallel to the machining axis is used. In comparison, the amount of grinding for one rotation of the work is extremely small, and the load on the wheel head is small. Therefore, the stability of the grindstone during high-speed rotation is enhanced, and the grinding accuracy is enhanced. Further, as described above, when the axis of the grindstone shaft is inclined with respect to the machining axis, and the outer peripheral grindstone surface on the grinding side of the grindstone portion is orthogonal to the machining axis, traverse grinding is mainly performed. The cup grindstone enables grinding of the end surface of the work. As described above, when the grinding is performed by inclining the axis of the grindstone shaft of the cup grindstone with respect to the plane orthogonal to the machining axis, the above-described various advantages occur.
【０００４】研削砥石は、所定時間使用すると、研削面
の形状が変化させられたりして研削能力が低下するの
で、砥石修正装置を使用して砥石の研削面の目直し、形
直しを行って定期的に修正する必要がある。研削盤のテ
ーブルには、このための砥石修正装置が備え付けられて
いる。従来のカップ砥石を使用した研削方法は、その砥
石軸の軸心と研削盤の加工軸心とが直交していて、砥石
の砥石面は、加工軸心と平行に位置しているために、そ
の修正も容易である。しかし、砥石部の底面の砥石面が
テーパ凹面状に形成されているカップ砥石においては、
その砥石面の修正は通常の方法では行えない。When the grinding wheel is used for a predetermined time, the shape of the grinding surface is changed and the grinding ability is deteriorated. Therefore, a grinding wheel correcting device is used to reshape and reshape the grinding surface of the grinding wheel. It needs to be fixed on a regular basis. The table of the grinder is equipped with a grindstone correction device for this purpose. The grinding method using the conventional cup grindstone, the axis of the grindstone axis and the machining axis of the grinder are orthogonal to each other, and the grindstone surface of the grindstone is located in parallel with the machining axis. The modification is also easy. However, in a cup grindstone in which the grindstone surface of the bottom surface of the grindstone portion is formed into a tapered concave surface,
The surface of the grindstone cannot be modified by the usual method.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、砥石部の底
面の砥石面がテーパ凹面状に形成されているカップ砥石
において、その砥石面の修正を既設の砥石修正装置によ
って支障なく行えるようにすることを課題としてなされ
たものである。SUMMARY OF THE INVENTION According to the present invention, in a cup grindstone in which the grindstone surface of the bottom surface of the grindstone portion is formed in a tapered concave shape, the grindstone surface can be corrected by an existing grindstone correcting device without any trouble. The task was to do.
【０００６】[0006]
【課題を解決するための手段】この課題を解決するため
に本発明の採用した第１の手段は、砥石部の底面の砥石
面が砥石軸に垂直な平面に対して僅かに傾斜してテーパ
凹面状に形成されているカップ砥石を修正するにあたっ
て、前記砥石軸の軸心を研削盤の加工軸心と直交する平
面に対して前記砥石面のテーパ角度だけ傾斜させること
により、前記加工軸心から最も離れている砥石部の砥石
面を該加工軸心と平行にして、砥石面の該平行部分にお
いてドレッサーを前記加工軸心の方向に砥石に対して相
対的に移動させるようにしたことである。また、本発明
の採用した第２の手段は、砥石部の外周面の外周砥石面
が砥石軸の軸心と同心の仮想円筒面に対して僅かに傾斜
して緩やかなテーパ面状に形成されているカップ砥石を
修正するにあって、前記砥石軸の軸心を研削盤の加工軸
心と直交する平面に対して前記外周砥石面のテーパ角度
だけ傾斜させることにより、前記加工軸心に最も近接し
ている砥石部の外周砥石面を前記加工軸心と直交させ
て、砥石部の外周砥石面の該直交部分においてドレッサ
ーを前記加工軸心と直交する方向に砥石に対して相対的
に移動させるようにしたことである。In order to solve this problem, the first means adopted by the present invention is that the grindstone surface of the bottom surface of the grindstone portion is slightly inclined with respect to a plane perpendicular to the grindstone axis and is tapered. In correcting a cup grindstone formed in a concave shape, by tilting the axis of the grindstone shaft by a taper angle of the grindstone surface with respect to a plane orthogonal to the machining axis of the grinder, the machining axis By making the grindstone surface of the grindstone portion farthest from the processing axis parallel to the grinding axis, the dresser in the parallel portion of the grinding wheel surface is moved relative to the grindstone in the direction of the processing axis. is there. Further, the second means adopted by the present invention is that the outer peripheral grindstone surface of the outer peripheral surface of the grindstone portion is formed into a gentle taper surface with a slight inclination with respect to a virtual cylindrical surface concentric with the axis of the grindstone shaft. In correcting the cup grindstone that is, by inclining the axis of the grindstone shaft by the taper angle of the outer peripheral grindstone surface with respect to the plane orthogonal to the machining axis of the grinder, The outer peripheral grindstone surface of the adjacent grindstone portion is orthogonal to the machining axis, and the dresser is relatively moved with respect to the grindstone in the direction orthogonal to the machining axis in the orthogonal portion of the outer peripheral grindstone surface of the grindstone portion. That's what I did.
【０００７】[0007]
【実施例】カップ砥石Ｇは、図１に示されるように、砥
石軸１１の先端部にテーパカップ部１２が一体に設けら
れ、このテーパカップ部１２の前端面にリング状の砥石
部１３が固着されたものである。この砥石部１３の底面
である砥石面１３ａは、砥石軸１１の軸心Ｃ1 に直交す
る平面に対して僅かな角度（θ）だけ傾斜して、テーパ
凹面状に形成されていると共に、その外周砥石面１３ｂ
は、砥石軸１１の軸心Ｃ1 と同心の仮想円筒面１４に対
して前記砥石面１３ａのテーパ角度（θ）と同一角度だ
け、しかも前記砥石面１３ａのテーパ方向と同一方向に
テーパ面状（緩やかな円錐面状）に形成されている。EXAMPLE As shown in FIG. 1, a cup grindstone G has a tapered cup portion 12 integrally provided at a tip end portion of a grindstone shaft 11, and a ring-shaped grindstone portion 13 is provided on a front end surface of the tapered cup portion 12. It is fixed. The grindstone surface 13a, which is the bottom surface of the grindstone portion 13, is formed in a tapered concave shape while inclining at a slight angle (θ) with respect to a plane orthogonal to the axis C 1 of the grindstone shaft 11. Peripheral whetstone surface 13b
Is the same as the taper angle (θ) of the grindstone surface 13a with respect to the virtual cylindrical surface 14 concentric with the axis C 1 of the grindstone shaft 11, and is tapered in the same direction as the taper direction of the grindstone surface 13a. It is formed in the shape of a gentle conical surface.
【０００８】図５は、円筒研削盤の研削部の平面図であ
って、主軸台２１に設けられた固定センター２２と、心
押台２３のセンター２４とによって、異形のワークＷを
支持し、主軸台２１のスピンドル（図示せず）と一体に
回転する面板２５に取付けたケレー２６をワークＷの突
出部Ｗａに引っ掛け、主軸台２１のスピンドルの回転に
よってワークＷを回転させる。心押台２３のセンター２
４は、カップ砥石Ｇとの干渉を避けるためにハーフセン
ターとなっている。主軸台２１と心押台２３とは、この
主軸台２１のスピンドルの軸心（加工軸心）Ｃ2 の方向
であるＸ（又はＸ’）方向に移動可能なテーブル（図示
せず）に装着されている。カップ砥石Ｇを装着した砥石
台（図示せず）は、加工軸心Ｃ2 と直交するＹ方向に移
動可能である。また、前記テーブルにおける主軸台２１
の側方には、砥石修正装置２７が装着され、そのスピン
ドル２８の先端に円板状のドレッサー２９が取付けられ
ている。砥石修正装置２７のスピンドル２８の軸心Ｃ3
は、前記加工軸心Ｃ2 と平行になっている。なお図２に
おいて、Ｌ1 は、加工軸心Ｃ2 の平行な直線を示し、Ｌ
2 は、加工軸心Ｃ2 に垂直な平面に含まれる直線を示
す。FIG. 5 is a plan view of a grinding portion of a cylindrical grinding machine, in which a deformed work W is supported by a fixed center 22 provided on a headstock 21 and a center 24 of a tailstock 23. The Kerley 26 attached to the face plate 25 that rotates integrally with the spindle (not shown) of the headstock 21 is hooked on the protruding portion Wa of the work W, and the work W is rotated by the rotation of the spindle of the headstock 21. Center 2 of tailstock 23
4 is a half center in order to avoid interference with the cup grindstone G. The headstock 21 and the tailstock 23 are mounted on a table (not shown) that is movable in the X (or X ') direction, which is the direction of the spindle center (machining axis) C 2 of the spindle of the headstock 21. Has been done. A grindstone base (not shown) equipped with the cup grindstone G is movable in the Y direction orthogonal to the machining axis C 2 . Further, the headstock 21 in the table
A grindstone correcting device 27 is mounted on the side of the, and a disk-shaped dresser 29 is attached to the tip of a spindle 28 thereof. The axis C 3 of the spindle 28 of the grindstone correcting device 27
Is parallel to the machining axis C 2 . In FIG. 2, L 1 represents a straight line parallel to the machining axis C 2 ,
2 indicates a straight line included in a plane perpendicular to the machining axis C 2 .
【０００９】そして、図２及び図５に示されるように、
カップ砥石Ｇの砥石軸１１の軸心Ｃ1 を加工軸心Ｃ2 に
直交する平面に対して前記砥石面１３ａのテーパ角度
（θ）だけ傾斜させた状態〔加工軸心Ｃ2 を基準にする
と、この加工軸心Ｃ2 とテーパカップ砥石Ｇの軸心Ｃ1
とのなす角度は、（９０°＋θ）となる〕で研削加工を
行うのである。このようにすると、カップ砥石Ｇの砥石
部１３の研削側と１８０°位相の異なる部分の砥石面１
３ａ（砥石面１３ａのこの部分が加工軸心Ｃ2 から最も
離れている）は、加工軸心Ｃ2 に対して平行になると共
に、砥石部１３の研削側の外周砥石面１３ｂは、加工軸
心Ｃ2 と直交して、研削側の砥石面１３ａと加工軸心Ｃ
2 とのなす角度は（２θ）となる。Then, as shown in FIGS. 2 and 5,
When the axis C 1 of the wheel shaft 11 of the cup grinding wheel G to taper angle (theta) only based on the condition [machining axis C 2 obtained by the inclination of the grinding surface 13a with respect to a plane perpendicular to the machining axis C 2 , The machining axis C 2 and the axis C 1 of the taper cup grindstone G
The angle formed by and is (90 ° + θ)]. By doing so, the grindstone surface 1 of a portion having a 180 ° phase difference from the grinding side of the grindstone portion 13 of the cup grindstone G
3a (This portion of the wheel face 13a is farthest from the machining axis C 2), together with becomes parallel to the machining axis C 2, the outer circumferential grinding surface 13b of the grinding side of the grinding wheel portion 13, machining axis perpendicular to the heart C 2, machining axis C and grinding surface 13a of the grinding-side
The angle formed with 2 is (2θ).
【００１０】図５に示されるように、砥石軸１１の軸心
Ｃ1 を加工軸心Ｃ2 に対して垂直な平面に対してテーパ
角度（θ）だけ傾斜させて、テーブルを矢印Ｘに微少量
移動させると、砥石部１３の外周砥石面１３ｂによりワ
ークの鍔部Ｗｃの端面が研削されると共に、テーブルを
矢印Ｘ’の方向に移動させると、砥石部１３の砥石面１
３ａによってワークＷの外径部Ｗｂが研削される。この
外径部Ｗｂの研削時においては、砥石面が加工軸心Ｃ2
に対して平行な通常のカップ砥石による研削方法に比較
して、ワークＷの一回転当たりの研削量が極めて少なく
なっている。As shown in FIG. 5, the axis C 1 of the grindstone shaft 11 is inclined by a taper angle (θ) with respect to a plane perpendicular to the machining axis C 2 , and the table is slightly moved to the arrow X. When moved a small amount, the outer peripheral grindstone surface 13b of the grindstone portion 13 grinds the end surface of the collar portion Wc of the workpiece, and when the table is moved in the direction of arrow X ', the grindstone surface 1 of the grindstone portion 13 is moved.
The outer diameter portion Wb of the work W is ground by 3a. During the grinding of the outer diameter portion Wb, the grindstone surface is the machining axis C 2
The grinding amount per one rotation of the work W is extremely small as compared with the grinding method using a normal cup grindstone parallel to the above.
【００１１】そして、このカップ砥石Ｇの砥石部１３
は、使用に伴って研削能力が低下するために、定期的に
修正して新たな砥石面を創成する必要がある。この場合
において、砥石部１３の砥石面１３ａを修正する場合に
は、図３に示されるように、加工軸心Ｃ2 から最も離れ
ている砥石部１３の反研削側（研削側と１８０°位相が
異なる側）においては、その砥石面１３ａは加工軸心Ｃ
2 と平行になっているために、主軸台２１を装着してい
るテーブルを矢印Ｘ又はＸ’方向に移動させて、砥石修
正装置２７のドレッサー２９の外周端縁２９ａにより修
正すればよい。これにより、加工軸心Ｃ2 と砥石軸１１
の軸心Ｃ1 とのなす角度が（９０°＋θ）である研削状
態のままで、砥石面１３ａの修正ができる。一方、砥石
部１３の外周砥石面１３ｂを修正する場合には、図４に
示されるように、加工軸心Ｃ2 に最も近い砥石部１３の
研削側における外周砥石面１３ｂが、この加工軸心Ｃ2
と直交しているために、カップ砥石Ｇを装着している砥
石台を、加工軸心Ｃ2 と直交する矢印Ｙ（又はＹ')方向
に移動させて、前記ドレッサー２９の前面２９ｂの周縁
部により修正すればよい。Then, the grindstone portion 13 of the cup grindstone G
Since the grinding ability decreases as it is used, it must be periodically corrected to create a new grindstone surface. In this case, when the grindstone surface 13a of the grindstone part 13 is to be corrected, as shown in FIG. 3, the grindstone part 13 farthest from the machining axis C 2 is on the opposite grinding side (180 ° phase with the grinding side). On the different side), the grindstone surface 13a has a machining axis C
Since it is parallel to 2 , the table on which the headstock 21 is mounted may be moved in the direction of the arrow X or X'and corrected by the outer peripheral edge 29a of the dresser 29 of the grindstone correcting device 27. As a result, the machining axis C 2 and the grindstone axis 11
The grindstone surface 13a can be corrected in the grinding state where the angle formed with the axis C1 of ( 1 ) is (90 ° + θ). On the other hand, when the outer peripheral grindstone surface 13b of the grindstone portion 13 is corrected, as shown in FIG. 4, the outer peripheral grindstone surface 13b on the grinding side of the grindstone portion 13 closest to the machining axis C 2 is the machining axis center. C 2
Since it is orthogonal to, the wheel head mounted with the cup wheel G is moved in the direction of the arrow Y (or Y ′) orthogonal to the machining axis C 2 and the peripheral portion of the front surface 29b of the dresser 29 is moved. It should be corrected by.
【００１２】なお、砥石修正装置２７を構成するドレッ
サーは、上記したような円板状のものに限定されず、い
かなる形状のものであっても構わない。また、砥石部１
３の砥石面１３ａの修正時において、ドレッサー２９を
加工軸心Ｃ2 の方向に対しては移動させずに、砥石自体
をその方向に移動させて、両者の間に相対移動を生じさ
せてもよい。The dresser constituting the grindstone correcting device 27 is not limited to the disk-shaped one as described above, and may have any shape. Also, the grindstone part 1
When the grindstone surface 13a of No. 3 is corrected, even if the dresser 29 is moved in that direction without moving the dresser 29 in the direction of the machining axis C 2 and relative movement occurs between the two. Good.
【００１３】[0013]
【発明の効果】本発明によれは、砥石部の底面の砥石面
がテーパ凹面状に形成されているカップ砥石において、
その砥石軸の軸心を加工軸心に直交する平面に対して砥
石面のテーパ角度だけ傾斜させることによって、研削時
における砥石の傾斜姿勢を維持したままで、その研削面
と、砥石部の外周面である外周砥石面とを、既設の砥石
修正装置によって支障なく修正できる。According to the present invention, in a cup grindstone in which the grindstone surface of the bottom surface of the grindstone portion is formed into a tapered concave surface,
By inclining the axis of the grindstone axis by the taper angle of the grindstone surface with respect to the plane orthogonal to the machining axis, the grinding surface and the outer circumference of the grindstone part are maintained while maintaining the inclined attitude of the grindstone during grinding. The outer peripheral grindstone surface, which is the surface, can be corrected by the existing grindstone correcting device without any trouble.
【図１】カップ砥石Ｇの正面図である。FIG. 1 is a front view of a cup grindstone G.
【図２】研削時におけるカップ砥石Ｇの平面図である。FIG. 2 is a plan view of a cup grindstone G during grinding.
【図３】カップ砥石Ｇの砥石部１３の砥石面１３ａを修
正している状態の平面図である。FIG. 3 is a plan view showing a state in which a grindstone surface 13a of a grindstone portion 13 of a cup grindstone G is being corrected.
【図４】カップ砥石Ｇの砥石部１３の外周砥石面１３ｂ
を修正している状態の平面図である。FIG. 4 is an outer peripheral grindstone surface 13b of the grindstone portion 13 of the cup grindstone G.
It is a top view of the state which is correcting.
【図５】カップ砥石Ｇによって異形のワークＷを研削し
ている状態の平面図である。FIG. 5 is a plan view showing a state in which a deformed work W is ground by a cup grindstone G.
Ｃ1 ：砥石軸の軸心 Ｃ2 ：加工軸心 Ｇ：カップ砥石 θ：テーパ凹面状の砥石面のテーパ角度 １１：砥石軸 １３：砥石部 １３ａ：砥石部の砥石面 １３ｂ：砥石部の外周砥石面 １４：仮想円筒面 ２７：砥石修正装置C 1 : Grindstone axis center C 2 : Machining axis G: Cup grindstone θ: Tapered concave taper surface taper angle 11: Grindstone shaft 13: Grindstone portion 13a: Grindstone surface of grindstone portion 13b: Outer periphery of grindstone portion Grindstone surface 14: Virtual cylindrical surface 27: Grindstone correction device
Claims (2)
平面に対して僅かに傾斜してテーパ凹面状に形成されて
いるカップ砥石の修正方法であって、前記砥石軸の軸心
を研削盤の加工軸心と直交する平面に対して前記砥石面
のテーパ角度だけ傾斜させることにより、前記加工軸心
から最も離れている砥石部の砥石面を該加工軸心と平行
にして、砥石面の該平行部分においてドレッサーを前記
加工軸心の方向に砥石に対して相対的に移動させて、砥
石部の砥石面を修正することを特徴とするカップ砥石の
修正方法。1. A method of repairing a cup grindstone in which the grindstone surface of the bottom surface of the grindstone portion is formed in a tapered concave shape with a slight inclination with respect to a plane perpendicular to the grindstone axis, the axis of the grindstone axis By inclining by a taper angle of the grindstone surface with respect to a plane orthogonal to the machining axis of the grinding machine, the grindstone surface of the grindstone portion farthest from the machining axis is parallel to the machining axis, A method for correcting a cup grindstone, characterized in that a dresser is moved in the direction of the processing axis relative to the grindstone in the parallel portion of the grindstone surface to correct the grindstone surface of the grindstone portion.
軸心と同心の仮想円筒面に対して僅かに傾斜して緩やか
なテーパ面状に形成されているカップ砥石の修正方法で
あって、前記砥石軸の軸心を研削盤の加工軸心と直交す
る平面に対して前記外周砥石面のテーパ角度だけ傾斜さ
せることにより、前記加工軸心に最も近接している砥石
部の外周砥石面を前記加工軸心と直交させて、砥石部の
外周砥石面の該直交部分においてドレッサーを前記加工
軸心と直交する方向に砥石に対して相対的に移動させ
て、砥石部の外周砥石面を修正することを特徴とするカ
ップ砥石の修正方法。2. A method of repairing a cup grindstone in which the outer grindstone surface of the outer peripheral surface of the grindstone portion is formed into a gentle taper surface with a slight inclination with respect to a virtual cylindrical surface concentric with the axis of the grindstone shaft. There, by inclining the axis of the grindstone axis by a taper angle of the outer peripheral grindstone surface with respect to a plane orthogonal to the machining axis of the grinder, the outer circumference of the grindstone portion closest to the machining axis. The grindstone surface is made orthogonal to the machining axis, and the dresser is relatively moved with respect to the grindstone in a direction orthogonal to the machining axis in the orthogonal portion of the outer peripheral grindstone surface of the grindstone portion, and the outer peripheral grindstone of the grindstone portion. A method for repairing a cup grindstone, which comprises repairing a surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19002992A JP2881176B2 (en) | 1992-06-23 | 1992-06-23 | How to fix cup whetstone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19002992A JP2881176B2 (en) | 1992-06-23 | 1992-06-23 | How to fix cup whetstone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH068142A true JPH068142A (en) | 1994-01-18 |
| JP2881176B2 JP2881176B2 (en) | 1999-04-12 |
Family
ID=16251188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19002992A Expired - Lifetime JP2881176B2 (en) | 1992-06-23 | 1992-06-23 | How to fix cup whetstone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2881176B2 (en) |
-
1992
- 1992-06-23 JP JP19002992A patent/JP2881176B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2881176B2 (en) | 1999-04-12 |
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