JPS63216661A - Cylindrical grinding method - Google Patents

Cylindrical grinding method

Info

Publication number
JPS63216661A
JPS63216661A JP4862087A JP4862087A JPS63216661A JP S63216661 A JPS63216661 A JP S63216661A JP 4862087 A JP4862087 A JP 4862087A JP 4862087 A JP4862087 A JP 4862087A JP S63216661 A JPS63216661 A JP S63216661A
Authority
JP
Japan
Prior art keywords
work
grinding
workpiece
grinding wheel
axis
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.)
Pending
Application number
JP4862087A
Other languages
Japanese (ja)
Inventor
Yasuo Shinno
康生 新野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyoda Koki KK
Original Assignee
Toyoda Koki KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyoda Koki KK filed Critical Toyoda Koki KK
Priority to JP4862087A priority Critical patent/JPS63216661A/en
Publication of JPS63216661A publication Critical patent/JPS63216661A/en
Pending legal-status Critical Current

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  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

PURPOSE:To prevent any drop in work strength from occurring, by tilting an axis of rotation of a grinding wheel as far as an angle theta to that of the work, and grinding it in a way of setting this angle theta, work peripheral speed and traverse speed to the specified relationship. CONSTITUTION:A work 10 of glass and ceramics or the like and a grinding wheel 20 are reversed with each other, while a wheel spindle stock 21 is fed into plunge cutting in parallel with an axis of rotation O of the work 10, and cylindrical grinding is carried out after traversing the work 10. In this case, an axis of rotation P of the grinding wheel 20 is tilted as far as an angle thetato the axis of rotation O of the work 10 around a line segment (m) connecting both these axes P and O together at a right angle, and work peripheral speed (v), wheel peripheral speed V and traverse speed (a) to this angle theta should be set to (¦Vcostheta-v¦)/(¦Vsintheta+a¦)<=tan30 deg., thus grinding takes place. If so, only a crack with a tilt of less than 30 deg. to this axis of rotation is entered in the work, so that such a possibility that strength for work's bending or the like is lowered by grinding is preventable.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、研削加工後のワークの強度を低下させない円
筒研削方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a cylindrical grinding method that does not reduce the strength of a workpiece after grinding.

〈従来の技術〉 従来は、ワークと砥石車を互いに平行な軸線回りで互い
に逆回りに回転させてワークの円筒研削を行っていた。
<Prior Art> Conventionally, the workpiece was cylindrically ground by rotating the workpiece and the grinding wheel in opposite directions around axes parallel to each other.

〈発明が解決しようとする問題点〉 このような円筒研削を行うと、ワークにこの回転方向に
クラックが入るため曲げ強度が大巾に低下する問題があ
った。特にガラス、セラミックの脆性材料では破壊する
恐れがあるため、ラップ等の仕上げ加工で前記クランク
を除去する必要があった。
<Problems to be Solved by the Invention> When such cylindrical grinding is performed, cracks occur in the workpiece in the direction of rotation, resulting in a significant decrease in bending strength. In particular, there is a risk that brittle materials such as glass and ceramics will break, so it was necessary to remove the crank by finishing processing such as lapping.

く問題点を解決するための手段〉 本発明は、ワークの回転軸線に対して砥石車の回転軸線
を角度θだけ傾け、 を満たす角度θ、ワーク周速v、砥石車周速V、トラバ
ース速度aで研削を行うようにしたものである。
Means for Solving Problems> The present invention tilts the rotational axis of the grinding wheel by an angle θ with respect to the rotational axis of the workpiece, and sets the angle θ, workpiece circumferential speed v, grinding wheel circumferential speed V, and traverse speed that satisfy the following. Grinding is performed in step a.

〈作用〉 ワークの回転軸線に対して砥石車の回転軸線を角度θだ
け傾け、ワークと砥石車を互いに逆回りに回転させる。
<Operation> The rotational axis of the grinding wheel is tilted by an angle θ with respect to the rotational axis of the workpiece, and the workpiece and the grinding wheel are rotated in opposite directions.

ワークにはこの回転軸線に対し30度以下の傾きを持つ
クラックが発生する。
A crack with an inclination of 30 degrees or less with respect to the rotation axis occurs in the workpiece.

〈実施例〉 以下本発明の実施例を図面に基づいて説明する。<Example> Embodiments of the present invention will be described below based on the drawings.

第1図、第2図において10はワークであり、20は砥
石車である。ワーク10は主軸側センタ11と心押台側
センタ12間で回転可能に支持され、主軸台13に設置
された回路のワーク駆動モータにより回転駆動部材を介
して回転駆動されるようになっている。14は前記心押
台側センタ12を保持する心押台であり、この心押台1
4と主軸台13は回路のテーブル上に設置され、前記テ
ーブルはワーク10の回転軸線0と平行な方向にトラバ
ース移動できるようになっている。
In FIGS. 1 and 2, 10 is a workpiece, and 20 is a grinding wheel. The workpiece 10 is rotatably supported between a spindle side center 11 and a tailstock side center 12, and is rotationally driven by a workpiece drive motor of a circuit installed in the headstock 13 via a rotational drive member. . 14 is a tailstock that holds the center 12 on the tailstock side, and this tailstock 1
4 and the headstock 13 are installed on a circuit table, and the table is capable of traverse movement in a direction parallel to the rotation axis 0 of the workpiece 10.

砥石車20は、砥石台21に回転可能に軸承され、回路
の砥石駆動モータにより回転駆動されるようになってい
る。砥石車20の回転軸線Pは2つの回転軸線0.Pを
直角に結ぶ線分m回りにワ一り10の回転軸線Oに対し
角度θだけ傾いている。なお、砥石台21はワーク10
の回転軸線0と直交する方向、すなわち線分m方向にプ
ランジ送りできるようになっている。
The grinding wheel 20 is rotatably supported on a grinding wheel head 21 and is rotationally driven by a grinding wheel drive motor of a circuit. The rotational axis P of the grinding wheel 20 has two rotational axes 0. It is inclined by an angle θ with respect to the rotation axis O of the wire 10 around a line segment m connecting P at right angles. Note that the grindstone head 21 is used for the workpiece 10.
Plunge feeding is possible in the direction perpendicular to the rotational axis 0 of , that is, in the direction of line segment m.

次に上述した構成に基づいて動作について説明する。ワ
ーク10と砥石車20を互いに逆回り、すなわち第2図
においてワーク10を反時計回りに回転させ、砥石車2
0を時計回りに回転させる。
Next, the operation will be explained based on the above-described configuration. The workpiece 10 and the grinding wheel 20 are rotated in opposite directions, that is, the workpiece 10 is rotated counterclockwise in FIG.
Rotate 0 clockwise.

次に砥石台21をプランジ送りし、ワーク10をトラバ
ース移動させてワーク10の円筒研削を行う。
Next, the grindstone head 21 is plunge-fed to move the workpiece 10 in a traverse manner, thereby performing cylindrical grinding of the workpiece 10.

ワーク周速をv、砥石車周速をv、ワーク10のトラバ
ース速度をaとしたときに、 の条件を満たす角度θ、ワーク周速v、砥石車周速v、
トラバース速度aで研削を行うのが良い。
When the circumferential speed of the workpiece is v, the circumferential speed of the grinding wheel is v, and the traverse speed of the workpiece 10 is a, the angle θ that satisfies the following conditions, the circumferential speed of the workpiece v, the circumferential speed of the grinding wheel v,
It is preferable to perform the grinding at a traverse speed a.

上述した条件で研削すると第3図に示すように矢印F方
向にワーク10にクラックが入り、ワーイ ク10の回転軸線Oと矢印Fとの間の角度$は、30度
以下となる。このような条件で研削されたワーク10は
、ワーク10の回転軸線0と直交する方向にクラックが
入っていないため曲げ等の強度が大巾に低下することが
ない。
When grinding under the above conditions, cracks appear in the workpiece 10 in the direction of the arrow F as shown in FIG. 3, and the angle $ between the rotational axis O of the workpiece 10 and the arrow F becomes less than 30 degrees. The workpiece 10 ground under such conditions has no cracks in the direction perpendicular to the rotational axis 0 of the workpiece 10, so its bending strength does not deteriorate significantly.

本発明は、トラバース速度aがゼロで、プランジ送りの
みの円筒研削でも良い。ワーク10又は砥石車20をト
ラバースさせるときは、Vsin θの速度ベクトルの
方向と一致する方向にトラバースさせるのが望ましい。
In the present invention, cylindrical grinding may be performed in which the traverse speed a is zero and only plunge feeding is performed. When traversing the workpiece 10 or the grinding wheel 20, it is desirable to traverse in a direction that matches the direction of the velocity vector of Vsin θ.

〈発明の効果〉 以上述べたように本発明は、条件式 を満たす角度θ、ワーク周速v、砥石車周速V、トラバ
ース速度aで研削を行うため、ワークにはこの回転軸線
に対して30度以下の傾きを持つクラックが入る。この
結果、ワークの曲げ等の強度が研削によって大巾に低下
しない利点が得られる。
<Effects of the Invention> As described above, the present invention performs grinding at an angle θ, a circumferential speed of the workpiece v, a circumferential speed of the grinding wheel V, and a traverse speed a that satisfy the conditional expression. A crack with an inclination of 30 degrees or less appears. As a result, there is an advantage that the bending strength of the workpiece does not decrease significantly due to grinding.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の実施例を示すもので、第1図は砥石車の
後方から見た図、第2図は第1図において■−■線で断
面した図、第3図はクラックの入った状態を示す図。 10・・・ワーク、13・・・主軸台、14・・・心押
台、20・・・砥石車、21・・・砥石台。
The drawings show an embodiment of the present invention, and Fig. 1 is a view from the rear of the grinding wheel, Fig. 2 is a cross-sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is a view showing a cracked part Diagram showing the state. 10... Workpiece, 13... Headstock, 14... Tailstock, 20... Grinding wheel, 21... Grinding wheel head.

Claims (1)

【特許請求の範囲】 ワークと砥石車を互いに逆回りに回転させてワークを円
筒状に研削する円筒研削方法であって、ワークの回転軸
線に対して砥石車の回転軸線を2つの回転軸線を直角に
結ぶ線分回りに角度θだけ傾け、ワーク周速をv、砥石
車周速をV、ワークの回転軸線方向の砥石車に対するワ
ークのトラバース速度をaとしたときに (|Vcosθ−v|)/(|Vcosθ+a|)≦t
an30°を満たす角度θ、ワーク周速v、砥石車周速
V、トラバース速度aで研削を行うことを特徴とする円
筒研削方法。
[Claims] A cylindrical grinding method in which a workpiece and a grinding wheel are rotated in opposite directions to grind the workpiece into a cylindrical shape, the grinding wheel having two rotational axes that are aligned with the rotational axis of the workpiece. When the workpiece is tilted by an angle θ around a line segment connected at right angles, the circumferential speed of the workpiece is v, the circumferential speed of the grinding wheel is V, and the traverse speed of the workpiece relative to the grinding wheel in the direction of the rotational axis of the workpiece is a, (|Vcosθ−v| )/(|Vcosθ+a|)≦t
A cylindrical grinding method characterized in that grinding is performed at an angle θ that satisfies an30°, a circumferential speed of the workpiece v, a circumferential speed of the grinding wheel V, and a traverse speed a.
JP4862087A 1987-03-03 1987-03-03 Cylindrical grinding method Pending JPS63216661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4862087A JPS63216661A (en) 1987-03-03 1987-03-03 Cylindrical grinding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4862087A JPS63216661A (en) 1987-03-03 1987-03-03 Cylindrical grinding method

Publications (1)

Publication Number Publication Date
JPS63216661A true JPS63216661A (en) 1988-09-08

Family

ID=12808449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4862087A Pending JPS63216661A (en) 1987-03-03 1987-03-03 Cylindrical grinding method

Country Status (1)

Country Link
JP (1) JPS63216661A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006263911A (en) * 2005-03-22 2006-10-05 Schott Ag Grinding method and grinding machine
JP2006297548A (en) * 2005-04-21 2006-11-02 Sosei Kk Continuously workable cylindrical grinder
JP2009208183A (en) * 2008-03-03 2009-09-17 Nissan Motor Co Ltd Grinding method and grinding device
US20100326823A1 (en) * 2007-07-02 2010-12-30 Tosoh Corporation Cylindrical sputtering target

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006263911A (en) * 2005-03-22 2006-10-05 Schott Ag Grinding method and grinding machine
JP2006297548A (en) * 2005-04-21 2006-11-02 Sosei Kk Continuously workable cylindrical grinder
JP4652109B2 (en) * 2005-04-21 2011-03-16 日立電線ラバーテクノロジー株式会社 Cylindrical grinder capable of continuous work
US20100326823A1 (en) * 2007-07-02 2010-12-30 Tosoh Corporation Cylindrical sputtering target
US8828198B2 (en) * 2007-07-02 2014-09-09 Tosoh Corporation Cylindrical sputtering target
JP2009208183A (en) * 2008-03-03 2009-09-17 Nissan Motor Co Ltd Grinding method and grinding device

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