JPH11254277A - Internal grinding machine - Google Patents
Internal grinding machineInfo
- Publication number
- JPH11254277A JPH11254277A JP5191898A JP5191898A JPH11254277A JP H11254277 A JPH11254277 A JP H11254277A JP 5191898 A JP5191898 A JP 5191898A JP 5191898 A JP5191898 A JP 5191898A JP H11254277 A JPH11254277 A JP H11254277A
- Authority
- JP
- Japan
- Prior art keywords
- grinding
- grinding wheel
- peripheral surface
- diameter
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- 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、ワークの内周面を
研削するための内面研削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 an inner surface grinding device for grinding an inner peripheral surface of a work.
【０００２】[0002]
【従来の技術】一般に、円筒状ワークの内面研削は、図
４に示すように、回転軸２１の軸心に対して所定の角度
θだけ傾斜させた主軸２０に取り付けたワークＷの内周
に、回転軸２１の先端に取り付けた研削砥石２２を挿入
し、ワークＷの内周面に研削砥石２２の外周面を相対的
に摺接させることにより行っている。2. Description of the Related Art Generally, as shown in FIG. 4, the inner surface of a cylindrical workpiece is ground on the inner periphery of a workpiece W attached to a main shaft 20 inclined at a predetermined angle θ with respect to the axis of a rotating shaft 21. The grinding is performed by inserting a grinding wheel 22 attached to the tip of the rotating shaft 21 and relatively bringing the outer peripheral surface of the grinding wheel 22 into sliding contact with the inner peripheral surface of the work W.
【０００３】しかし、研削砥石２２の砥石径が変化する
と、切れ味も変化するため、砥石径の変化に拘わらず、
同一の研削条件で研削した場合、研削精度は図５に示す
ように変化する。However, if the grinding wheel diameter of the grinding wheel 22 changes, the sharpness also changes.
When grinding is performed under the same grinding conditions, the grinding accuracy changes as shown in FIG.
【０００４】すなわち、砥石径が大きい間は、砥石２２
の切れ味が悪く、回転軸２１の撓みも大きいため、荒研
削終了時は点線Ｃ１で示すように仕上げ代（端面Ｐ１側
の仕上げ代８μ）もテーパ量（端面Ｐ１側とＰ２側の内
径差２１μ）も大きい。したがって、さらに仕上げ研削
及びスパークアウトを行った後も、点線Ｃ２で示すよう
な切り残しを生じ、テーパ量もそれ程小さくならない。
砥石径が小さくなると、砥石２２の切れ味が向上し、回
転軸２１の撓みも小さくなるため、荒研削終了時は一点
鎖線Ｄ１で示すように仕上げ代もテーパ量も砥石径が大
きいときよりも小さくなる。このため、仕上げ研削及び
スパークアウト終了時の切り残しとテーパ量はなくな
り、良好な研削精度が得られるが、砥石２２の切れ味が
よい分、研削面の面粗度は砥石径が大きいときよりも悪
くなる。That is, while the diameter of the grinding stone is large, the grinding stone 22
Since the sharpness of the shaft is poor and the rotation of the rotating shaft 21 is large, the finishing allowance (finish allowance 8 μ on the end face P1 side) and the taper amount (the inner diameter difference 21 μm between the end face P1 side and the P2 side) as shown by the dotted line C1 at the end of the rough grinding. ) Is also large. Therefore, even after the finish grinding and the spark-out are further performed, the uncut portion shown by the dotted line C2 occurs, and the taper amount does not become so small.
When the grindstone diameter is small, the sharpness of the grindstone 22 is improved, and the deflection of the rotating shaft 21 is also small. Therefore, at the end of the rough grinding, the finishing allowance and the taper amount are smaller than when the grindstone diameter is large, as indicated by the dashed line D1. Become. For this reason, the uncut portion and taper amount at the end of finish grinding and spark out are eliminated, and good grinding accuracy is obtained, but the sharpness of the grindstone 22 is better, and the surface roughness of the ground surface is larger than when the grindstone diameter is large. become worse.
【０００５】従来、このような内面研削では、ワークＷ
の内径寸法及び円筒度を高精度に仕上げるために、次の
ような加工方法を採用している。すなわち、ワークＷの
内径寸法を高精度に仕上げるためにゲージ加工を採用
し、仕上げ代が一定になるように荒研削から仕上げ研削
への切込み速度の切換位置を制御している。なお、ゲー
ジ加工とは、インプロセスゲージで直接ワークＷの内周
面を測定しながら行う研削方法をいう。さらに、ワーク
Ｗの内周面の円筒度を高精度に仕上げるために、研削砥
石２２の切込み速度を砥石径の大小によって変化させて
いる。これは、砥石径が小さくなると、切れ味がよいた
め、研削加工中の回転軸２１の撓みが小さくなり、ワー
クＷの内周面のテーパ量が変化するためである。Conventionally, in such internal grinding, the work W
In order to finish the inner diameter and the cylindricity of the steel with high accuracy, the following processing method is adopted. That is, gauge processing is employed to finish the inner diameter of the work W with high precision, and the switching position of the cutting speed from rough grinding to finish grinding is controlled so that the finishing allowance is constant. Note that the gage processing refers to a grinding method performed while directly measuring the inner peripheral surface of the work W using an in-process gauge. Further, in order to finish the cylindricity of the inner peripheral surface of the work W with high accuracy, the cutting speed of the grinding wheel 22 is changed depending on the diameter of the grinding wheel. This is because the smaller the grindstone diameter, the sharper the sharpness, the smaller the deflection of the rotating shaft 21 during the grinding process, and the more the taper amount of the inner peripheral surface of the work W changes.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、前記イ
ンプロセスゲージは高価であるばかりでなく、外力によ
り損傷しやすいため、取り扱いが非常に困難である。ま
た、砥石径の大小により切込み送り速度を変化させる方
法では、砥石径が小さくなると、内径テーパ量を砥石径
が大きいときと同一にするために切込み送り速度を大き
くする必要があるが、砥石２２の切れ味がよくなった
分、研削面の面粗度が悪くなる。However, the in-process gauge is not only expensive but also easily damaged by external force, so that it is very difficult to handle. In the method in which the cutting feed speed is changed according to the size of the grindstone, when the grindstone diameter is small, it is necessary to increase the cutting feed speed in order to make the inner diameter taper amount the same as when the grindstone diameter is large. The surface roughness of the ground surface deteriorates as much as the sharpness of the surface is improved.
【０００７】そこで、本発明は、インプロセスゲージを
使用しない簡単な構成で、高精度にワークの内周面を研
削することのできる内面研削装置を提供することを課題
とする。Accordingly, an object of the present invention is to provide an inner surface grinding apparatus capable of grinding an inner peripheral surface of a work with high accuracy with a simple configuration that does not use an in-process gauge.
【０００８】[0008]
【課題を解決するための手段】本発明は、前記課題を解
決するための手段として、主軸に取り付けたワークの内
周面に、回転軸に取り付けた研削砥石の外周面を摺接さ
せることにより、ワークの内周面を研削加工するように
した内面研削装置において、前記ワークと研削砥石の回
転中心のなす角度を調整可能な角度調整手段を設け、前
記研削砥石の砥石径の変化に応じて、前記角度調整手段
を駆動してワークと研削砥石の回転中心のなす角度を調
整すると共に、荒研削から仕上げ研削への切込み速度の
切換位置を変更するようにしたものである。According to the present invention, as a means for solving the above-mentioned problems, an outer peripheral surface of a grinding wheel mounted on a rotating shaft is brought into sliding contact with an inner peripheral surface of a work mounted on a main shaft. In an inner surface grinding apparatus configured to grind the inner peripheral surface of a work, an angle adjusting means capable of adjusting an angle between a rotation center of the work and the grinding wheel is provided, and according to a change in a grindstone diameter of the grinding wheel. The angle adjusting means is driven to adjust the angle formed by the rotation center of the workpiece and the grinding wheel, and to change the switching position of the cutting speed from rough grinding to finish grinding.
【０００９】前記研削砥石の砥石径の変化に応じて、研
削面の傾きを打ち消すように、前記研削砥石を所定の傾
きを有する形状にドレス成形すると共に、荒研削から仕
上げ研削への切込み速度の切換位置を変更するようにし
てもよい。In accordance with a change in the diameter of the grinding wheel, the grinding wheel is dressed into a shape having a predetermined inclination so as to cancel the inclination of the grinding surface, and the cutting speed from rough grinding to finish grinding is reduced. The switching position may be changed.
【００１０】前記研削砥石の砥石径の変化に応じて、仕
上げ研削の切込み完了位置や、仕上げ研削後のスパーク
アウト時間を変更するのが好ましい。[0010] It is preferable to change the cutting completion position of the finish grinding and the spark-out time after the finish grinding according to the change in the diameter of the grinding wheel.
【００１１】[0011]
【発明の実施の形態】以下、本発明の実施形態を添付図
面に従って説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１２】図１は、本実施形態に係る内面研削装置の
概略平面図である。この内面研削装置は、大略、ベッド
１上に、主軸台２と砥石台３とを設けたものである。FIG. 1 is a schematic plan view of an internal grinding device according to the present embodiment. This inner surface grinding device generally has a headstock 2 and a grinding wheel head 3 provided on a bed 1.
【００１３】主軸台２は、ベッド１上に固定した主軸下
部台４と、この主軸下部台４に載置されてＸ軸方向（図
１中、上下方向）に往復移動する主軸テーブル５と、こ
の主軸テーブル５に載置されて水平面内で旋回可能な主
軸部６とからなる。The headstock 2 includes a main spindle lower base 4 fixed on the bed 1, a main spindle table 5 mounted on the main spindle lower base 4, and reciprocating in the X-axis direction (vertical direction in FIG. 1). A spindle section 6 mounted on the spindle table 5 and rotatable in a horizontal plane.
【００１４】前記主軸テーブル５は、主軸下部台４に設
けた切込みサーボモータ７の駆動によりＺ軸方向の所定
位置に位置決めされるようになっている。前記主軸部６
は、主軸テーブル５に支軸８を中心として回動自在に設
けられている。主軸部６の回動位置は、主軸スイベル用
サーボモータ９の駆動により調整可能となっている。主
軸部６には、チャック１０が取り付けられ、そこには円
筒状のワークＷが保持されている。そして、図示しない
モータを駆動すると、主軸部６がチャック１０を介して
ワークＷと共に回転するようになっている。The spindle table 5 is positioned at a predetermined position in the Z-axis direction by driving a notch servomotor 7 provided on the spindle lower base 4. The main shaft 6
Are rotatably provided on the spindle table 5 about the support shaft 8. The rotational position of the spindle 6 can be adjusted by driving the spindle swivel servomotor 9. A chuck 10 is attached to the main shaft portion 6, and a cylindrical work W is held therein. When a motor (not shown) is driven, the main shaft 6 rotates together with the work W via the chuck 10.
【００１５】砥石台３は、砥石台本体１１と、この砥石
台本体１１上をＺ軸方向（図１中、左右方向）に往復移
動可能に設けた砥石テーブル１２と、この砥石テーブル
１２に固定したホイールヘッド１３とからなる。The grindstone table 3 comprises a grindstone table body 11, a grindstone table 12 provided on the grindstone table body 11 so as to be reciprocally movable in the Z-axis direction (left and right directions in FIG. 1), and fixed to the grindstone table 12. Wheel head 13.
【００１６】前記砥石テーブル１２は、テーブル駆動サ
ーボモータ１４の駆動により、砥石台本体１１上をＺ軸
方向の所定位置に位置決めされるようになっている。前
記ホイールヘッド１３から延びる回転軸１５の先端には
研削砥石１６が固定されている。そして、ホイールヘッ
ド１３に内蔵する図示しないモータを駆動すると、回転
軸１５を介して研削砥石１６が回転し、ワークＷの内周
面を研削できるようになっている。The grindstone table 12 is positioned on the grindstone main body 11 at a predetermined position in the Z-axis direction by driving a table drive servomotor 14. A grinding wheel 16 is fixed to a tip of a rotating shaft 15 extending from the wheel head 13. When a motor (not shown) incorporated in the wheel head 13 is driven, the grinding wheel 16 rotates via the rotating shaft 15 so that the inner peripheral surface of the work W can be ground.
【００１７】前記切込みサーボモータ７、主軸スイベル
用サーボモータ９、テーブル駆動サーボモータ１４等
は、制御装置１７からの入力信号に基づいて駆動制御さ
れるようになっている。The cut servomotor 7, the spindle swivel servomotor 9, the table drive servomotor 14 and the like are driven and controlled based on an input signal from a control device 17.
【００１８】次に、前記内面研削装置による内面研削加
工について説明する。Next, the internal grinding by the internal grinding device will be described.
【００１９】なお、本実施形態での内面研削加工は、荒
研削、仕上げ研削及びスパークアウトの各工程により行
っている。また、前記研削砥石１６の切込み送り速度は
一定値としている。研削加工中、回転軸１５は撓むた
め、ワークＷの内径は切込み送り量と同じだけ大きくな
らず、切り残しが生じるが、研削砥石１６の切れ味は砥
石径の大小により変化するので、この切り残し量も変化
する。インプロセスゲージを使用しないサイズ加工にお
いても、実質的な仕上げ研削量をできるだけ一定にし、
ワークＷの内周面の円筒度及び面粗度を安定させる目的
で、切込み送り位置は、研削砥石１６の外径寸法の違い
に応じて異ならせている。Note that the inner surface grinding in the present embodiment is performed by the steps of rough grinding, finish grinding and spark out. The cutting feed speed of the grinding wheel 16 is a constant value. During the grinding process, the rotating shaft 15 bends, so that the inner diameter of the work W does not increase as much as the cutting feed amount and uncut portions are left. However, the sharpness of the grinding wheel 16 changes depending on the diameter of the grinding wheel. The remaining amount also changes. Even in sizing without using an in-process gauge, make the actual finish grinding amount as constant as possible,
In order to stabilize the cylindricity and surface roughness of the inner peripheral surface of the work W, the cutting feed position is made different depending on the difference in the outer diameter of the grinding wheel 16.
【００２０】荒研削では、切込み送り位置を研削砥石１
６の外径寸法の変化に応じて変更する。すなわち、研削
砥石１６は、外径寸法が大きければ大きい程、ワークＷ
の研削面に対する食い込み角度が小さくて切れ味が悪
い。このため、切込み送り位置（荒研削寸法Ａ１）は、
図２中、１点鎖線ａ１で示すように、研削砥石１６の外
径寸法が大きい間は大きくとり、切込み速度の切換時期
を変更し、実質的な仕上げ研削量を一定にするようにし
ている。これにより、外径寸法が大きくて切れ味の悪い
研削砥石１６であっても、ワークＷの内周面のテーパ量
が大きくならないようにすることが可能となる。In rough grinding, the cutting feed position is set to the grinding wheel 1
6 is changed according to the change of the outer diameter dimension. That is, the larger the outer diameter of the grinding wheel 16 is, the larger the work W
The angle of penetration into the ground surface is small and the sharpness is poor. For this reason, the cutting feed position (rough grinding dimension A1)
In FIG. 2, as shown by the one-dot chain line a1, while the outer diameter of the grinding wheel 16 is large, it is large, the switching time of the cutting speed is changed, and the substantial finish grinding amount is made constant. . This makes it possible to prevent the tapered amount of the inner peripheral surface of the work W from increasing even with the grinding wheel 16 having a large outer diameter and poor sharpness.
【００２１】その後、所定数のワークを研削し、研削砥
石１６の表面が荒れて加工精度が悪くなると、ドレス成
形により砥石表面を正常にする。そして、ドレス成形に
より研削砥石１６の外径寸法は徐々に小さくなってくる
が、それにつれて研削砥石１６のワークＷの研削面に対
する食い込み角度が大きくなって切れ味が良くなるの
で、図２中、実線ｂ１で示すように、荒研削での切込み
送り寸法（荒研削寸法Ｂ１）が小さくなるように制御す
る。但し、この切込み送り寸法Ｂ１は、研削砥石１６の
径寸法に応じて、複数段階で制御するようにしてもよい
し、無段階で制御するようにしてもよい。Thereafter, a predetermined number of workpieces are ground, and when the surface of the grinding wheel 16 becomes rough and the processing accuracy deteriorates, the surface of the grinding wheel is made normal by dress forming. The outer diameter of the grinding wheel 16 gradually decreases due to the dressing. However, the angle of the grinding wheel 16 with respect to the grinding surface of the workpiece W increases and the sharpness is improved. As shown by b1, control is performed so that the cutting feed dimension (rough grinding dimension B1) in the rough grinding becomes small. However, the cut feed dimension B1 may be controlled in a plurality of steps or may be controlled in a stepless manner according to the diameter of the grinding wheel 16.
【００２２】仕上げ研削でも、前記荒研削のときと同様
に、切込み送り位置を研削砥石１６の外径寸法の変化に
応じて変更する。前記切込み送り位置（仕上げ研削寸法
Ａ２）は、図２中、１点鎖線ａ２で示すように、研削砥
石１６の外径寸法が大きい間は大きくとり、外径寸法が
小さくなるにつれて、図２中、実線ｂ２で示すように、
小さく抑制する。In the finishing grinding, the cutting feed position is changed in accordance with a change in the outer diameter of the grinding wheel 16 as in the case of the rough grinding. The cutting feed position (finish grinding dimension A2) is large while the outer diameter of the grinding wheel 16 is large, as shown by the one-dot chain line a2 in FIG. , As shown by the solid line b2,
Keep it small.
【００２３】スパークアウトでは、ワークＷに対する研
削砥石１６の切込み送りを終了し、そのままの状態でワ
ークＷ及び研削砥石１６の回転を続行する。この場合、
スパークアウト時間は、研削砥石１６の径寸法に応じて
変更する。すなわち、研削砥石１６の外径寸法が大きい
間は短いスパークアウト時間Ｔｓとし、外径寸法が小さ
くなるに従って長いスパークアウト時間Ｔｌとする。こ
れは、研削砥石１６の外径寸法が大きい間は、ワークＷ
に対する食い込み角度が小さく、所望の面粗度が得られ
るが、外径寸法が小さくなると、研削砥石１６の切れ味
が良くなり、面粗度が悪化することが想定されるからで
ある。In the spark-out, the cutting and feeding of the grinding wheel 16 with respect to the work W is completed, and the rotation of the work W and the grinding wheel 16 is continued as it is. in this case,
The spark-out time is changed according to the diameter of the grinding wheel 16. That is, while the outer diameter of the grinding wheel 16 is large, the spark-out time Ts is set to be short, and as the outer diameter is reduced, the spark-out time Tl is set to be long. This is because while the outer diameter of the grinding wheel 16 is large, the work W
This is because, although a desired surface roughness can be obtained with a small bite angle, the sharpness of the grinding wheel 16 is improved and the surface roughness is degraded when the outer diameter is reduced.
【００２４】前記研削方法により研削されたワークＷの
研削精度は図３に示すようになる。すなわち、前記研削
方法では、荒研削及び仕上げ研削の切込み送り位置を砥
石径の変化に応じて変更しているので、図５と比較して
も明らかなように、砥石径の大きい研削砥石１６の場合
の荒研削及び仕上げ研削終了時の切り残し量が小さくな
っている。FIG. 3 shows the grinding accuracy of the work W ground by the grinding method. That is, in the above-mentioned grinding method, since the cutting feed position of the rough grinding and the finish grinding is changed according to the change of the grindstone diameter, as apparent from comparison with FIG. In this case, the uncut amount at the end of rough grinding and finish grinding is small.
【００２５】しかし、前記研削方法によっても、砥石径
が大きい場合の仕上げ研削及びスパークアウト終了時の
テーパ量は改善されていない。そこで、本実施形態の研
削方法では、さらに砥石径の変化に応じて回転軸１５の
軸心に対する主軸部６の傾斜角も変更する。すなわち、
図３に示すワークＷの場合であれば、砥石径が大きい場
合の回転軸１５の軸心に対する主軸部６の傾斜角を研削
砥石１６の外径が小さい場合の傾斜角よりもαだけ大き
くする。この傾斜角の変更も、荒研削時の切込み送り位
置の変更と同様に、研削砥石１６の径寸法に応じて複数
段階で制御するようにしてもよいし、無段階で制御する
ようにしてもよい。However, even with the above-described grinding method, the amount of taper at the end of finish grinding and spark-out when the grindstone diameter is large is not improved. Therefore, in the grinding method of the present embodiment, the inclination angle of the main shaft portion 6 with respect to the axis of the rotating shaft 15 is also changed according to the change in the grindstone diameter. That is,
In the case of the work W shown in FIG. 3, the inclination angle of the main shaft portion 6 with respect to the axis of the rotating shaft 15 when the grindstone diameter is large is set to be larger than the inclination angle when the outer diameter of the grinding stone 16 is small by α. . The change of the inclination angle may be controlled in a plurality of steps according to the diameter of the grinding wheel 16, or may be controlled in a stepless manner, similarly to the change of the infeed position at the time of rough grinding. Good.
【００２６】このように、前記実施形態では、ワークＷ
の切込み速度を従来のように砥石径に応じて変化させる
ことなく一定にしても、所望の面粗度を得ることができ
ると共に、内径の仕上げ寸法をほぼ一定に揃え、研削面
の傾きをもなくすことが可能である。As described above, in the above embodiment, the work W
Even if the cutting speed is constant without changing according to the grindstone diameter as in the prior art, the desired surface roughness can be obtained, and the finishing dimensions of the inner diameter are made almost constant, and the inclination of the grinding surface is also reduced. It is possible to eliminate it.
【００２７】なお、前記実施形態では、主軸部６の回動
位置を調整することにより、ワークＷの研削面の傾きを
修正するようにしたが、研削砥石１６の外周形状自体に
傾きを持たせることにより修正するようにしても構わな
い。すなわち、研削砥石１６を、先端側に向かうに従っ
て徐々に断面積が大きくなるようにドレス成形する。こ
の場合、研削砥石１６の外径寸法が大きければ、前述の
研削結果に基づいてドレス成形時の傾きを大きく取り、
外径寸法が小さくなれば、小さくすることは勿論であ
る。In the above-described embodiment, the inclination of the grinding surface of the work W is corrected by adjusting the rotational position of the main shaft 6, but the outer peripheral shape of the grinding wheel 16 is inclined. It may be corrected by the following. That is, the dressing of the grinding wheel 16 is performed such that the cross-sectional area gradually increases toward the distal end. In this case, if the outer diameter of the grinding wheel 16 is large, the inclination at the time of dress forming is made large based on the above-described grinding result,
If the outer diameter dimension is reduced, it goes without saying that it is reduced.
【００２８】[0028]
【発明の効果】以上の説明から明らかなように、本発明
に係る内面研削装置によれば、ワークと研削砥石の回転
中心のなす角度を調整するようにしたり、研削砥石を所
定の傾きを有するようにドレス成形するようにしたの
で、研削加工時の回転軸の撓みを考慮して傾きのない適
切な研削面を得ることができる。As is apparent from the above description, according to the internal grinding device of the present invention, the angle between the work and the center of rotation of the grinding wheel can be adjusted, or the grinding wheel can have a predetermined inclination. Since the dressing is performed as described above, an appropriate ground surface without inclination can be obtained in consideration of the bending of the rotating shaft during the grinding process.
【００２９】また、研削砥石の砥石径に応じて、荒研削
から仕上げ研削への切込み速度の切換時期や、仕上げ研
削の切込み完了位置や、仕上げ研削後のスパークアウト
位置を変更するようにしたので、所望の面粗度に研削
し、かつ、無駄な時間を削減して効率的な研削作業を実
現できる。Further, the switching time of the cutting speed from the rough grinding to the finish grinding, the cutting completion position of the finish grinding, and the spark-out position after the finish grinding are changed according to the grinding wheel diameter of the grinding wheel. Thus, it is possible to realize an efficient grinding operation by grinding to a desired surface roughness and reducing wasted time.
【図１】 本実施形態に係る内面研削装置の概略平面図
である。FIG. 1 is a schematic plan view of an internal grinding device according to an embodiment.
【図２】 研削時間と切込み寸法との関係を示すグラフ
である。FIG. 2 is a graph showing a relationship between a grinding time and a cutting depth.
【図３】 本実施形態の研削方法で研削されたワークの
内径形状を示す部分断面図である。FIG. 3 is a partial cross-sectional view showing an inner diameter shape of a work ground by the grinding method of the present embodiment.
【図４】 従来例に係る内面研削装置の部分断面図であ
る。FIG. 4 is a partial sectional view of an internal grinding device according to a conventional example.
【図５】 従来の研削方法で研削されたワークの内径形
状を示す部分断面図である。FIG. 5 is a partial cross-sectional view showing an inner diameter shape of a work ground by a conventional grinding method.
２： 主軸台 ３： 砥石台 ６： 主軸部 ９： 主軸スイベル用サーボモータ １４： テーブル駆動サーボモータ １５： 回転軸 １６： 研削砥石 １７： 制御装置 2: Headstock 3: Wheelhead 6: Spindle 9: Servomotor for spindle swivel 14: Table drive servomotor 15: Rotating shaft 16: Grinding wheel 17: Control device
Claims (4)
転軸に取り付けた研削砥石の外周面を摺接させることに
より、ワークの内周面を研削加工するようにした内面研
削装置において、 前記ワークと研削砥石の回転中心のなす角度を調整可能
な角度調整手段を設け、 前記研削砥石の砥石径の変化に応じて、前記角度調整手
段を駆動してワークと研削砥石の回転中心のなす角度を
調整すると共に、荒研削から仕上げ研削への切込み速度
の切換位置を変更するようにしたことを特徴とする内面
研削装置。1. An inner surface grinding apparatus for grinding an inner peripheral surface of a work by bringing an outer peripheral surface of a grinding wheel attached to a rotary shaft into sliding contact with an inner peripheral surface of the work attached to a main shaft. An angle adjusting means capable of adjusting an angle formed between the workpiece and the center of rotation of the grinding wheel is provided, and the angle adjusting means is driven in accordance with a change in the wheel diameter of the grinding wheel to form the center of rotation between the workpiece and the grinding wheel. An internal grinding apparatus characterized in that an angle is adjusted and a switching position of a cutting speed from rough grinding to finish grinding is changed.
転軸に取り付けた研削砥石の外周面を摺接させることに
より、ワークの内周面を研削加工するようにした内面研
削装置において、 前記研削砥石の砥石径の変化に応じて、研削面の傾きを
打ち消すように、前記研削砥石を所定の傾きを有する形
状にドレス成形すると共に、荒研削から仕上げ研削への
切込み速度の切換位置を変更するようにしたことを特徴
とする内面研削装置。2. An inner surface grinding apparatus for grinding an inner peripheral surface of a work by bringing an outer peripheral surface of a grinding wheel attached to a rotary shaft into sliding contact with an inner peripheral surface of a work attached to a main shaft. In accordance with the change in the grinding wheel diameter of the grinding wheel, the dressing of the grinding wheel into a shape having a predetermined slope so as to cancel the inclination of the grinding surface, and the switching position of the cutting speed from rough grinding to finish grinding. An internal grinding device characterized by being changed.
上げ研削の切込み完了位置を変更することを特徴とする
請求項１又は２に記載の内面研削装置。3. The internal grinding apparatus according to claim 1, wherein a cutting completion position of the finish grinding is changed in accordance with a change in a grindstone diameter of the grinding grindstone.
上げ研削後のスパークアウト時間を変更することを特徴
とする請求項１ないし３のいずれか１項に記載の内面研
削装置。4. The internal grinding apparatus according to claim 1, wherein a spark-out time after finish grinding is changed in accordance with a change in the diameter of the grinding wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05191898A JP3848779B2 (en) | 1998-03-04 | 1998-03-04 | Internal grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05191898A JP3848779B2 (en) | 1998-03-04 | 1998-03-04 | Internal grinding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11254277A true JPH11254277A (en) | 1999-09-21 |
| JP3848779B2 JP3848779B2 (en) | 2006-11-22 |
Family
ID=12900266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05191898A Expired - Fee Related JP3848779B2 (en) | 1998-03-04 | 1998-03-04 | Internal grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3848779B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909634A (en) * | 2011-08-04 | 2013-02-06 | 中国有色（沈阳）冶金机械有限公司 | Movable type horizontal lathe grinding diaphragm chamber mechanism |
| JP2014079831A (en) * | 2012-10-16 | 2014-05-08 | Okamoto Machine Tool Works Ltd | Duplex inner face grinding device |
| CN104440425A (en) * | 2014-12-19 | 2015-03-25 | 无锡大龙马数控机床制造有限责任公司 | High-speed internal grinding machine |
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| CN104493649A (en) * | 2014-12-19 | 2015-04-08 | 无锡大龙马数控机床制造有限责任公司 | Grinding unit of high-speed internal grinder |
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1998
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909634A (en) * | 2011-08-04 | 2013-02-06 | 中国有色（沈阳）冶金机械有限公司 | Movable type horizontal lathe grinding diaphragm chamber mechanism |
| JP2014079831A (en) * | 2012-10-16 | 2014-05-08 | Okamoto Machine Tool Works Ltd | Duplex inner face grinding device |
| CN104440425A (en) * | 2014-12-19 | 2015-03-25 | 无锡大龙马数控机床制造有限责任公司 | High-speed internal grinding machine |
| CN107081644A (en) * | 2017-05-16 | 2017-08-22 | 佛山标天下信息科技有限公司 | A kind of pipe fitting inner wall sanding apparatus |
| CN107081644B (en) * | 2017-05-16 | 2019-05-21 | 新昌县恒盛机械有限公司 | A kind of pipe fitting inner wall grinding device |
| CN109202681A (en) * | 2018-09-18 | 2019-01-15 | 张小敏 | A kind of stainless steel tube device for polishing inner hole |
| CN109909820A (en) * | 2019-03-19 | 2019-06-21 | 湖州师范学院 | A kind of the multisection type processing unit and processing method of tubular shell inner surface |
| CN109909820B (en) * | 2019-03-19 | 2023-10-27 | 湖州师范学院 | Multi-stage treatment device and method for inner surface of cylindrical shell |
| KR102351661B1 (en) * | 2021-05-31 | 2022-01-17 | 피티케이(주) | A device for buffing caps and pipes during the synthesis gasification process of petroleum coke for hydrogen production |
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| Publication number | Publication date |
|---|---|
| JP3848779B2 (en) | 2006-11-22 |
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