JP3170938B2 - Grinding method - Google Patents

Grinding method

Info

Publication number
JP3170938B2
JP3170938B2 JP06832393A JP6832393A JP3170938B2 JP 3170938 B2 JP3170938 B2 JP 3170938B2 JP 06832393 A JP06832393 A JP 06832393A JP 6832393 A JP6832393 A JP 6832393A JP 3170938 B2 JP3170938 B2 JP 3170938B2
Authority
JP
Japan
Prior art keywords
grinding
workpiece
cylindrical portion
grindstone
corner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP06832393A
Other languages
Japanese (ja)
Other versions
JPH06278020A (en
Inventor
智康 今井
正人 北島
良平 向井
利弘 筒井
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 JP06832393A priority Critical patent/JP3170938B2/en
Publication of JPH06278020A publication Critical patent/JPH06278020A/en
Application granted granted Critical
Publication of JP3170938B2 publication Critical patent/JP3170938B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、工作物軸線と平行な方
向およびこれと交差する方向へ相対移動可能な研削盤を
用いて、工作物の円筒部ならびに円筒部に隣接する隅部
を研削加工する研削方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grinding machine for grinding a cylindrical portion of a workpiece and a corner adjacent to the cylindrical portion using a grinder which can be relatively moved in a direction parallel to and crossing the axis of the workpiece. It relates to a grinding method for processing.

【0002】[0002]

【従来の技術】従来、円筒形状の工作物Wを高速に研削
する方法として、図7に示されるようなものがある。こ
れは工作物Wの回転軸と平行なストレート部Gsと、工
作物Wの回転軸に対して傾斜したテーパ部Gtが設けら
れた砥石Gを用い、まず砥石Gを工作物Wの一端で位置
決めし、工作物Wと砥石Gをそれぞれ回転させながら、
砥石Gを工作物Wに対して接近移動する。すなわち、工
作物Wの回転軸線に直交する方向に移動させ、粗研削、
精研削、微研削と順次研削を行い(以下、このような工
作物Wの回転軸線に直交する方向に工作物Wと砥石Gを
相対移動させて研削加工を行う方法をプランジ研削と呼
ぶ。)、工作物Wの一端のみを所望の仕上げ寸法まで加
工する。この後、工作物Wを工作物Wの回転軸線方向に
沿って工作物Wの他端まで移動させながら工作物W全体
の研削加工を行う(以下、このような工作物Wの回転軸
線方向に沿って工作物Wと砥石Gを相対移動させて研削
加工を行う方法をトラバース研削と呼ぶ)。このよう
な、研削方法では、トラバース研削時に砥石Gのテーパ
部Gtによって粗研削を行い、続いてストレート部Gs
によって仕上げ研削を行うことができるので、1回のト
ラバース研削によって工作物W全体の研削加工を行うこ
とができる。
2. Description of the Related Art As a conventional method for grinding a cylindrical workpiece W at high speed, there is a method as shown in FIG. This uses a grindstone G provided with a straight portion Gs parallel to the rotation axis of the workpiece W and a tapered portion Gt inclined with respect to the rotation axis of the workpiece W. First, the grindstone G is positioned at one end of the workpiece W. Then, while rotating the workpiece W and the grindstone G respectively,
The grindstone G moves closer to the workpiece W. That is, the workpiece W is moved in a direction orthogonal to the rotation axis,
Fine grinding and fine grinding are sequentially performed (hereinafter, a method of performing grinding by relatively moving the workpiece W and the grindstone G in a direction orthogonal to the rotation axis of the workpiece W is referred to as plunge grinding). Then, only one end of the workpiece W is processed to a desired finish size. Thereafter, grinding of the entire workpiece W is performed while moving the workpiece W along the rotation axis direction of the workpiece W to the other end of the workpiece W (hereinafter, such grinding is performed in the rotation axis direction of the workpiece W). A method of performing the grinding by relatively moving the workpiece W and the grindstone G along is called traverse grinding). In such a grinding method, rough grinding is performed by the tapered portion Gt of the grindstone G during traverse grinding, and then the straight portion Gs
Thus, the finish grinding can be performed, so that the entire workpiece W can be ground by one traverse grinding.

【0003】そして、図5に示すように、工作物Wの円
筒部aを上述した高速研削によって加工し、円筒部aに
隣接する円弧状の隅部bならび端面cを研削加工する場
合には、端面c、隅部b、円筒部aの順番で研削が行わ
れていた。このうち、端面cと隅部bの研削に対して
は、X軸方向の切込み量とZ軸方向の送り量を研削盤に
おける砥石Gの座標(以下機械座標と呼ぶ)で制御し、
円筒部aの研削については円筒部aの寸法精度を重視す
るために、工作物Wの実際に加工されたときの工作物の
座標(以下工作物座標と呼ぶ)で砥石Gの制御がなされ
ていた。つまり、上記した高速研削におけるプランジ研
削と同様に円筒部aの左端の直径が目標寸法に達したこ
とを定寸装置16が検知して検出信号が出力されると、
X軸方向の切込みを停止して、Z軸方向の送りのみによ
るトラバース研削を行い円筒部を研削するようにしてい
た。
As shown in FIG. 5, when a cylindrical portion a of a workpiece W is processed by the above-described high-speed grinding, and an arc-shaped corner b and an end face c adjacent to the cylindrical portion a are ground, The grinding was performed in the order of the end face c, the corner b, and the cylindrical part a. Of these, for the grinding of the end face c and the corner b, the cutting amount in the X-axis direction and the feeding amount in the Z-axis direction are controlled by the coordinates of the grinding wheel G (hereinafter referred to as machine coordinates) in the grinding machine.
Regarding the grinding of the cylindrical portion a, in order to emphasize the dimensional accuracy of the cylindrical portion a, the grindstone G is controlled by the coordinates of the workpiece when the workpiece W is actually machined (hereinafter referred to as workpiece coordinates). Was. That is, similarly to the plunge grinding in the above-described high-speed grinding, when the sizing device 16 detects that the diameter of the left end of the cylindrical portion a has reached the target size and outputs a detection signal,
The cutting in the X-axis direction is stopped, and traverse grinding is performed only by feeding in the Z-axis direction to grind the cylindrical portion.

【0004】[0004]

【発明が解決しようとする課題】研削加工においては砥
石Gの磨耗による砥石径の減少、工作物支持による偏心
および工作物Wの回転によるたわみ等の原因により研削
盤の機械座標と前記工作物座標とにずれが発生する。こ
のため、上述した従来の技術によって研削加工を行うと
以下の状態が発生した。すなわち、図6[A]に示すよ
うに、砥石GのX軸方向の切込みが実際の寸法よりαだ
け大きく切込まれ、結果として隅部bの円弧形状が完全
に形成されないうちに定寸装置16の検出信号が出力さ
れ円筒部aのトラバース研削が開始されてしまう状態。
また、逆に図6[B]に示すように、研削盤上でのX軸
切込みが実際の寸法よりもβだけ小さく切込まれ、結果
として隅部bの円弧形状が完全に形成されてからもなお
プランジ研削によってX軸方向に切り込んでから円筒部
aのトラバース研削が行われて段部eが形成されてしま
う状態を発生した。上述した2つの研削状態により、目
標寸法通りの隅部bを成形できないといった問題点があ
った。
In the grinding process, the machine coordinates of the grinding machine and the workpiece coordinates are reduced due to factors such as a decrease in the diameter of the grinding wheel due to wear of the grinding wheel G, eccentricity due to the support of the workpiece, and bending due to rotation of the workpiece W. And a shift occurs. For this reason, the following state occurs when grinding is performed by the above-described conventional technology. That is, as shown in FIG. 6A, the cut in the X-axis direction of the grindstone G is cut by α larger than the actual size, and as a result, the sizing device before the arc shape of the corner b is completely formed. A state where the detection signal of No. 16 is output and the traverse grinding of the cylindrical portion a is started.
Conversely, as shown in FIG. 6B, the X-axis cut on the grinding machine is cut by β smaller than the actual dimension, and as a result, the arc shape of the corner b is completely formed. Still further, a state in which the traverse grinding of the cylindrical portion a is performed and the step portion e is formed after cutting in the X-axis direction by plunge grinding has occurred. Due to the two grinding states described above, there is a problem that the corner b having the target dimensions cannot be formed.

【0005】したがって、本発明は上述した問題点を解
決すべく、目標寸法通りの正確な形状の隅部aの加工を
可能にする研削方法を提供することを目的とする。
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a grinding method capable of machining a corner a having an accurate shape according to a target dimension in order to solve the above-mentioned problems.

【0006】[0006]

【課題を解決するための手段】 円筒部の一部を測定装
置にて測定しながらプランジ研削し、前記測定装置によ
って前記円筒部の径が仕上げ径より大径の予め定められ
た設定値に達したことを示す信号が出力されると、前記
信号が出力された時の砥石の位置に基づいて該砥石の工
作物軸線と交差する方向における座標系を再設定し、
の後、前記再設定した座標系に基づき工作物の仕上げ形
状に沿って前記砥石を該工作物に対して相対移動し、前
記工作物の隅部から前記円筒部に向けて前記砥石のテー
パ部が該円筒部の加工進行方向に先行するようにして連
続した1回の研削送りで研削加工するようにしたことか
らなる。
Means for Solving the Problems Plunge grinding is performed while measuring a part of the cylindrical portion with a measuring device, and the diameter of the cylindrical portion is predetermined by the measuring device to be larger than the finishing diameter.
When a signal indicating that it has reached the set value is output, the
Reconfigure the coordinate system in a direction intersecting the workpiece axis of the grinding wheel based on the position of the grinding wheel when the signal is output, its
After that, finish the workpiece based on the reset coordinate system.
Moving the grindstone relative to the workpiece along the
From the corner of the workpiece to the cylindrical part,
The connection is made so that the
Grinding is performed by one continuous grinding feed .

【0007】[0007]

【作用】 まず、工作物の円筒部の一部を測定装置にて
測定しながら工作物軸線と交差する方向にプランジ研削
する。前記測定装置により工作物円筒部が設定値に達し
たことを示す信号が出力されたら、前記信号が出力され
た時の砥石の位置に基づいて砥石の工作物軸線と交差す
る方向における座標系を再設定し、砥石および測定装置
を後退する。
First, plunge grinding is performed in a direction intersecting with the workpiece axis while measuring a part of the cylindrical portion of the workpiece with a measuring device. When a signal indicating that the workpiece cylinder has reached the set value is output by the measuring device , the signal is output.
The coordinate system in the direction intersecting with the workpiece axis of the grindstone is reset based on the position of the grindstone at the time of the grinding, and the grindstone and the measuring device are retracted.

【0008】そして、前記再設定された座標系によっ
て、工作物の端面、隅部および円筒部を連続した1回の
研削にて研削加工する。
Then, the end face, the corner and the cylindrical portion of the workpiece are ground by one continuous grinding by the reset coordinate system.

【0009】[0009]

【実施例】以下に本発明の実施例を図面に基づき説明す
る。図1は本発明の研削方法を用いて円弧形状をした隅
部を有した工作物の研削加工を行う研削盤の全体構成図
である。10は研削盤本体であり、ベッド11にはテー
ブル12および砥石台13が配設されている。テーブル
12は、ベッド11に設けられたテーブル駆動サーボモ
ータ27の駆動により、図略の送りねじ機構によってZ
軸方向(図面左右方向)に移動できるようになってお
り、また砥石台13はベッド11に設けられた砥石台駆
動装置26の駆動により、図略の送りねじ機構によって
Z軸と直交するX軸方向(図面上下方向)に移動できる
ようになっている。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram of a grinding machine for grinding a workpiece having an arc-shaped corner using the grinding method of the present invention. Reference numeral 10 denotes a grinding machine main body, and a bed 11 is provided with a table 12 and a grinding wheel stand 13. The table 12 is driven by a table drive servomotor 27 provided on the bed 11 to drive the table 12 by a feed screw mechanism (not shown).
The wheel base 13 can be moved in the axial direction (horizontal direction in the drawing), and the wheel head 13 is driven by a wheel head driving device 26 provided on the bed 11 so that the X axis orthogonal to the Z axis is driven by a feed screw mechanism (not shown). It can be moved in the direction (vertical direction in the drawing).

【0010】テーブル12上には、主軸台14と心押台
15が設けられ、工作物Wの両端をセンタ支持してい
る。主軸台14には主軸駆動用サーボモータ28が固定
されており、主軸駆動用サーボモータ28の駆動により
工作物Wを回転するようになっている。砥石台13には
図略の砥石回転用のモータによって回転される砥石Gが
設けられている。砥石Gは円板状の砥石コアの外周に砥
石層を設けたものであり、この砥石層はCBN砥粒をビ
トリファイドボンドで結合したものが用いられている。
砥石Gの外周には工作物Wの回転軸線と平行なストレー
ト部Gsと、工作物Wの回転軸線に対して傾斜したテー
パ部Gtが設けられている。このテーパ部Gtは図7に
示すようにテーパ部Gtの砥石Gの半径方向の長さH
は、工作部Wの加工開始時の外径から工作物仕上げ径ま
での距離hよりも長くなるように設定されている。
A headstock 14 and a tailstock 15 are provided on the table 12 and support both ends of the workpiece W at the center. A spindle drive servomotor 28 is fixed to the headstock 14, and the workpiece W is rotated by the drive of the spindle drive servomotor 28. The grindstone table 13 is provided with a grindstone G that is rotated by an unillustrated grindstone rotation motor. The grindstone G is a disc-shaped grindstone core provided with a grindstone layer on the outer periphery thereof. The grindstone layer is formed by bonding CBN abrasive grains with vitrified bonds.
A straight portion Gs parallel to the rotation axis of the workpiece W and a tapered portion Gt inclined with respect to the rotation axis of the workpiece W are provided on the outer periphery of the grindstone G. As shown in FIG. 7, the tapered portion Gt has a length H in the radial direction of the grindstone G of the tapered portion Gt.
Is set to be longer than the distance h from the outer diameter at the start of machining of the workpiece W to the finished workpiece diameter.

【0011】また、16は定寸装置であり、テーブル1
2に取り付けられたブラケット17上に測定ヘッド18
が前進後退可能に支持され、工作物Wの円筒部の直径を
測定するようになっている。測定ヘッド18には一対の
接触子19が変位可能に支持され、測定ヘッド18内に
設けられた変位検出器にて接触子19の変位量に応じた
信号が出力され、アンプ20に入力される。アンプ20
は予め設定された設定値と入力信号とを比較し、一致点
で定寸信号を後述する数値制御装置21に対し出力し、
前記砥石台13の送り前進端位置を制御する。
Reference numeral 16 denotes a sizing device, which is a table 1
Measuring head 18 on a bracket 17 mounted on
Are supported so as to be able to move forward and backward, and measure the diameter of the cylindrical portion of the workpiece W. A pair of contacts 19 are displaceably supported by the measuring head 18, and a signal corresponding to the amount of displacement of the contacts 19 is output by a displacement detector provided in the measuring head 18 and input to the amplifier 20. . Amplifier 20
Compares an input signal with a preset set value, outputs a sizing signal to a numerical control device 21 described later at a coincidence point,
The feed advance end position of the wheel head 13 is controlled.

【0012】前記数値制御装置21には砥石台駆動回路
36、テーブル駆動回路37および主軸駆動回路38が
接続されており、それぞれ砥石台駆動用サーボモータ2
6、テーブル駆動用サーボモータ27、主軸駆動用サー
ボモータ28の駆動を制御するようになっている。つぎ
に、図2および図3に基づき本発明にかかる研削方法を
用いて円弧状の隅部を加工する研削加工について説明す
る。図2は定寸測定をしながら工作物Wの円筒部aをプ
ランジ研削加工している第1研削加工を示した図であ
り、図3は実際に工作物を目標寸法に研削加工する第2
研削加工を示した図である。
The numerical controller 21 is connected to a grindstone drive circuit 36, a table drive circuit 37, and a spindle drive circuit 38.
6. The drive of the table drive servomotor 27 and the spindle drive servomotor 28 is controlled. Next, a description will be given of a grinding process for machining an arc-shaped corner using the grinding method according to the present invention with reference to FIGS. FIG. 2 is a diagram showing a first grinding process in which the cylindrical portion a of the workpiece W is plunge-ground while measuring the size, and FIG. 3 is a second grinding process in which the workpiece is actually ground to a target size.
It is the figure which showed the grinding process.

【0013】まず、図2に示すように工作物Wの円筒部
aにおける定寸装置16の測定位置をプランジ研削によ
り第1研削加工する。定寸装置16はプランジ加工の
間、常に測定を行うインプロセス測定がなされており、
後述する設定値まで研削がなされたら定寸信号を出力し
て砥石Gの切込みを停止するようになっている。ここ
で、上記設定値とは実際の仕上がり寸法D(図面二点鎖
線部分)よりも微小量Δd大きい値に設定されている。
First, as shown in FIG. 2, the measurement position of the sizing device 16 in the cylindrical portion a of the workpiece W is subjected to first grinding by plunge grinding. The sizing device 16 performs in-process measurement, which always performs measurement during plunge processing,
When the grinding is performed to a set value to be described later, a fixed size signal is output to stop the cutting of the grindstone G. Here, the set value is set to a value that is larger by a small amount Δd than the actual finished dimension D (the two-dot chain line in the drawing).

【0014】定寸信号が出力され砥石Gの切り込みが停
止されたら、この位置での砥石GのX軸方向の座標系を
再設定し、砥石Gを後退させる。すると、上記砥石Gの
機械座標系と工作物の形状の座標系である工作物座標系
が一致するので、図3に示すように、工作物Wの加工形
状に沿って端面cの区間P1−P2をプランジ研削し、
隅部bの区間P2−P3を円弧研削し、そして、円筒部
aの区間P3以降をトラバース研削する第2研削加工を
行う。
When the sizing signal is output and the cutting of the grindstone G is stopped, the coordinate system in the X-axis direction of the grindstone G at this position is reset, and the grindstone G is retracted. Then, the machine coordinate system of the grinding wheel G and the workpiece coordinate system, which is the coordinate system of the shape of the workpiece, coincide with each other. Therefore, as shown in FIG. P2 is plunge ground,
A second grinding process is performed in which the section P2-P3 of the corner b is circularly ground and the traverse grinding of the section P3 and subsequent sections of the cylindrical portion a is performed.

【0015】次に、図4に示すは本実施例の研削加工の
流れを示したフロチャートに基づき詳細に説明する。ス
テップ100にて、数値制御装置21によりアンプ20
に定寸信号を出力するときの工作物Wの径の値(設定
値)を設定する。この値は工作物Wの円筒部aの仕上げ
寸法Dに微小量Δd大きい値を設定し、本研削したとき
に加工面に影響しないようにしている。
Next, FIG. 4 will be described in detail with reference to a flowchart showing the flow of the grinding process of the present embodiment. In step 100, the numerical controller 21
The value (set value) of the diameter of the workpiece W when the fixed size signal is output is set. This value is set to a value that is large by a small amount Δd to the finishing dimension D of the cylindrical portion a of the workpiece W so as not to affect the processed surface when the main grinding is performed.

【0016】ステップ101にて、定寸装置16を前進
させ、定寸装置16にてインプロセス測定しながら工作
物Wの円筒部aの径がD+Δdになるまで砥石Gを切り
込む。砥石Gの切り込みは実際には、機械座標と工作物
座標とのずれを考慮してオーバーカウント値Δvが引か
れた、D+Δd−Δvの値が与えられており、必ず砥石
Gが設定値まで達するようになっている。
In step 101, the sizing device 16 is advanced, and the grindstone G is cut while the in-process measurement is performed by the sizing device 16 until the diameter of the cylindrical portion a of the workpiece W becomes D + Δd. The cut of the grindstone G is actually given the value of D + Δd−Δv, in which the overcount value Δv is subtracted in consideration of the deviation between the machine coordinates and the workpiece coordinates, and the grindstone G always reaches the set value. It has become.

【0017】ステップ102にて、砥石Gの座標系を再
設定する。ここで意味する座標系の再設定とは機械座標
と工作物座標とのずれ量を求めて機械座標を補正するこ
とを意味し、砥石台13の現在の位置をカウントする図
略のカウンタの値と定寸装置16の値とを一致させてい
る(実際にはNCプログラムのGコード(G92)によ
り、機械座標を新たに設定して、機械座標と工作物座標
を一致させている)。
In step 102, the coordinate system of the grinding wheel G is reset. The resetting of the coordinate system as used herein means that the deviation between the machine coordinates and the workpiece coordinates is obtained and the machine coordinates are corrected, and the value of a counter (not shown) that counts the current position of the grinding wheel head 13 is used. And the value of the sizing device 16 (actually, the machine coordinates are newly set by the G code (G92) of the NC program, and the machine coordinates and the workpiece coordinates are matched).

【0018】ステップ103で砥石G(詳細には砥石台
13)を後退し、ステップ104で定寸装置16(詳細
には測定ヘッド18)を後退する。ステップ105に
て、図3に示すように、実際に工作物Wを目標寸法に研
削する第2研削加工を行う。105aにて端面cをプラ
ンジ研削し、続いて105bにて隅部bを円弧研削す
る。最後に円筒部aをトラバース研削して研削加工を終
了する。この場合、ステップ102において、機械座標
を再設定しているので機械座標における砥石Gの位置と
工作物の寸法は一致しており、端面cの研削終点P2よ
り隅部bの円弧研削が開始され、隅部bの研削終点P3
より円筒部aのトラバース研削が開始され、目標寸法通
りの隅部bが形成される。
In step 103, the grinding wheel G (specifically, the grinding wheel base 13) is retracted, and in step 104, the sizing device 16 (specifically, the measuring head 18) is retracted. In step 105, as shown in FIG. 3, a second grinding process for actually grinding the workpiece W to a target size is performed. At 105a, the end face c is plunge-ground, and then at 105b, the corner b is arc-ground. Finally, the cylindrical portion a is traversed to finish the grinding. In this case, since the machine coordinates are reset in step 102, the position of the grindstone G in the machine coordinates matches the dimension of the workpiece, and the arc grinding of the corner b is started from the grinding end point P2 of the end face c. , The end point P3 of the corner b grinding
Then, traverse grinding of the cylindrical portion a is started, and the corner b having the target size is formed.

【0019】以上に述べたように工作物Wの端面c、隅
部bおよび円筒部aを加工する時には、従来の様に端面
cおよび隅部bを研削した後に定寸装置16を用いて円
筒部aの研削を開始するのではなく、まず円筒部aの定
寸装置16による測定位置を適宜の量研削し、砥石台の
座標を正しく補正した後に端面c、隅部bおよび円筒部
aの加工を行うようにしたため、円筒部aの精度を確保
し、なおかつ隅部bを目標寸法とおりに研削できるとい
った効果がある。
As described above, when machining the end face c, the corner b, and the cylindrical part a of the workpiece W, after grinding the end face c and the corner b in the conventional manner, using the sizing device 16, Instead of starting the grinding of the part a, first, the measuring position of the cylindrical part a by the sizing device 16 is ground by an appropriate amount, the coordinates of the grinding wheel table are corrected, and then the end face c, the corner b, and the cylindrical part a Since the machining is performed, there is an effect that the accuracy of the cylindrical portion a is secured and the corner portion b can be ground to the target size.

【0020】なお、本実施例においては、砥石台の機械
座標を再設定した後に、端面c、隅部b、円筒部aの順
番で研削加工を行っているが、円筒部a、隅部b、端面
cの順番で加工を行っても同様の効果が得られる。ま
た、本実施例においては円弧形状をした隅部の形成に関
して説明してきたが、テーパ形状をした隅部に対しても
同様に研削が可能である。
In this embodiment, after the machine coordinates of the grinding wheel head are reset, the grinding process is performed in the order of the end face c, the corner b, and the cylindrical part a. However, the cylindrical part a, the corner b The same effect can be obtained by processing in the order of the end face c. In the present embodiment, the formation of the arc-shaped corner has been described, but the tapered corner can be ground in the same manner.

【0021】[0021]

【発明の効果】以上に述べたように本発明による工作物
の円筒部および隅部の加工においては、従来の様に隅部
を研削した後に測定装置を用いて円筒部の研削を開始す
るのではなく、始めに円筒部の測定装置による測定位置
を適宜の量研削し、砥石軸線と交差する方向の座標系を
再設定して正しく補正し、その後に円筒部および隅部の
研削加工を行うようにしたため、円筒部の精度を確保
し、なおかつ隅部を目標寸法とおりに研削加工できると
いった効果がある。
As described above, in machining a cylindrical portion and a corner of a workpiece according to the present invention, grinding of the cylindrical portion is started using a measuring device after grinding the corner as in the conventional method. Instead, first grind the measuring position of the cylindrical part by the measuring device by an appropriate amount, reset the coordinate system in the direction intersecting the grinding wheel axis, correct it correctly, and then grind the cylindrical part and corner part Thus, there is an effect that the accuracy of the cylindrical portion is ensured, and the corners can be ground to the target dimensions.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施例を示す研削盤の全体構成図であ
る。
FIG. 1 is an overall configuration diagram of a grinding machine showing an embodiment of the present invention.

【図2】第1研削加工を示した図である。FIG. 2 is a view showing a first grinding process.

【図3】第2研削加工を示した図である。FIG. 3 is a view showing a second grinding process.

【図4】研削過程を示したフロチャートである。FIG. 4 is a flowchart showing a grinding process.

【図5】従来の研削過程を示した図である。FIG. 5 is a view showing a conventional grinding process.

【図6】従来の研削結果を示した図である。FIG. 6 is a diagram showing a conventional grinding result.

【図7】従来の研削加工を説明する図である。FIG. 7 is a diagram illustrating a conventional grinding process.

【符号の説明】[Explanation of symbols]

10 研削盤 12 テーブル 13 心押台 16 定寸装置 20 アンプ 21 数値制御装置 G 砥石 L 工作物軸線 W 工作物 DESCRIPTION OF SYMBOLS 10 Grinding machine 12 Table 13 Tailstock 16 Sizing device 20 Amplifier 21 Numerical control device G Grinding wheel L Workpiece axis W Workpiece

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭54−149993(JP,A) 特開 昭56−3168(JP,A) 特開 昭58−59759(JP,A) 特公 昭47−25030(JP,B1) 特公 昭50−27636(JP,B1) (58)調査した分野(Int.Cl.7,DB名) B24B 49/00 - 49/18 B23Q 15/00 309 B24B 5/14 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-54-149993 (JP, A) JP-A-56-3168 (JP, A) JP-A-58-59759 (JP, A) 25030 (JP, B1) JP 50-27636 (JP, B1) (58) Fields investigated (Int. Cl. 7 , DB name) B24B 49/00-49/18 B23Q 15/00 309 B24B 5/14

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 工作物の円筒部の径寸法を測定する測定
装置と、工作物軸線と平行なストレート部と該工作物軸
線に対して傾斜したテーパ部を有した砥石を備え、該砥
石を前記工作物軸線と平行な方向およびこれと交差する
方向への相対移動可能な研削盤により、前記工作物の円
筒部および前記円筒部に隣接する隅部を研削する研削方
法において、前記円筒部の一部を前記測定装置にて測定
しながらプランジ研削し、前記測定装置によって前記円
筒部の径が仕上げ径より大径の予め定められた設定値に
達したことを示す信号が出力されると、前記信号が出力
された時の前記砥石の位置に基づいて該砥石の前記工作
物軸線と交差する方向における座標系を再設定し、その
後、前記再設定した座標系に基づき前記工作物の仕上げ
形状に沿って前記砥石を該工作物に対して相対移動し、
前記隅部から前記円筒部に向けて前記砥石の前記テーパ
部が該円筒部の加工進行方向に先行するようにして連続
した1回の研削送りで研削加工するようにしたことを特
徴とする研削方法。
A measuring device for measuring a diameter of a cylindrical portion of a workpiece, a straight portion parallel to a workpiece axis, and a workpiece shaft;
A grindstone having a tapered portion inclined with respect to a line, the grindstone can be relatively moved in a direction parallel to the workpiece axis and in a direction intersecting the same, the cylindrical portion of the workpiece and the In a grinding method for grinding a corner portion adjacent to a cylindrical portion, plunge grinding is performed while measuring a part of the cylindrical portion with the measuring device, and the diameter of the cylindrical portion is larger than a finished diameter by the measuring device. When a signal indicating that the set value has been reached is output, the signal is output.
Reconfigure the coordinate system in a direction intersecting the workpiece axis of the grinding wheel based on the position of the grinding wheel when it is, the
After that, finishing the workpiece based on the reset coordinate system
Moving the whetstone relative to the workpiece along the shape,
The taper of the grinding stone from the corner toward the cylindrical portion
Continuous so that the part precedes the processing direction of the cylindrical part
A grinding method characterized in that grinding is performed by a single grinding feed .
JP06832393A 1993-03-26 1993-03-26 Grinding method Expired - Lifetime JP3170938B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP06832393A JP3170938B2 (en) 1993-03-26 1993-03-26 Grinding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP06832393A JP3170938B2 (en) 1993-03-26 1993-03-26 Grinding method

Publications (2)

Publication Number Publication Date
JPH06278020A JPH06278020A (en) 1994-10-04
JP3170938B2 true JP3170938B2 (en) 2001-05-28

Family

ID=13370508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP06832393A Expired - Lifetime JP3170938B2 (en) 1993-03-26 1993-03-26 Grinding method

Country Status (1)

Country Link
JP (1) JP3170938B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5401757B2 (en) * 2006-11-30 2014-01-29 株式会社ジェイテクト Processing equipment

Also Published As

Publication number Publication date
JPH06278020A (en) 1994-10-04

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