JPH0367823B2 - - Google Patents

Info

Publication number
JPH0367823B2
JPH0367823B2 JP21573385A JP21573385A JPH0367823B2 JP H0367823 B2 JPH0367823 B2 JP H0367823B2 JP 21573385 A JP21573385 A JP 21573385A JP 21573385 A JP21573385 A JP 21573385A JP H0367823 B2 JPH0367823 B2 JP H0367823B2
Authority
JP
Japan
Prior art keywords
axis
origin
tool
turret
tool rest
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
Application number
JP21573385A
Other languages
Japanese (ja)
Other versions
JPS6274507A (en
Inventor
Toshiharu Hayashi
Juji Mitani
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.)
OOKUMA KK
Original Assignee
OOKUMA 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 OOKUMA KK filed Critical OOKUMA KK
Priority to JP21573385A priority Critical patent/JPS6274507A/en
Publication of JPS6274507A publication Critical patent/JPS6274507A/en
Publication of JPH0367823B2 publication Critical patent/JPH0367823B2/ja
Granted legal-status Critical Current

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  • Machine Tool Sensing Apparatuses (AREA)
  • Turning (AREA)

Description

【発明の詳細な説明】 産業上の利用分野 本発明は2個の刃物台を有する4軸制御のNC
旋盤において、一方の刃物台に設けられた1個の
センサにより他方の刃物台のX軸原点をも修正す
る方法に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is a 4-axis controlled NC having two turrets.
The present invention relates to a method for correcting the X-axis origin of the other tool rest using one sensor provided on one tool rest in a lathe.

従来技術 従来知られている半径計測法による原点修正
は、例えば特公昭49−1151号のように主軸中心を
基準にワーク計測を行うため、主軸と同心に基準
リングゲージを設けて刃物台のX軸原点を修正し
ていた。
Prior art In order to measure the workpiece using the spindle center as a reference, as in the conventionally known radius measurement method, for example, as in Japanese Patent Publication No. 49-1151, a reference ring gauge is installed concentrically with the spindle, and the X of the tool post is The axis origin was corrected.

発明が解決しようとする問題点 通常、刃物台が2個となつてもコスト面からセ
ンサは第1の刃物台にのみ取り付けられて第1の
刃物台の原点を修正し、第2の刃物台もともに修
正されたものとしている。このため第2の刃物台
の原点は正確には修正されたとはいえず問題であ
った。
Problems to be Solved by the Invention Normally, even if there are two turrets, the sensor is attached only to the first turret due to cost reasons, and the sensor is attached to only the first turret to correct the origin of the first turret, and the sensor is attached to the second turret. Both have been revised. For this reason, the origin of the second tool rest was not accurately corrected, which was a problem.

問題点を解決するための手段 第1刃物台5に設けたセンサ10によつて主軸
中心と同軸に設けた基準リングゲージ4の直径を
計測して演算により第1刃物台のX軸原点Aを求
め、前記センサ10により第2刃物台8のX軸方
向基準面11を計測しこの測定値と第1刃物台の
原点Aとの差により第2刃物台のX軸原点Bを求
めるものである。
Means for solving the problem The diameter of a reference ring gauge 4 installed coaxially with the center of the spindle is measured by a sensor 10 installed in the first tool rest 5, and the X-axis origin A of the first tool rest is determined by calculation. The X-axis direction reference plane 11 of the second tool rest 8 is measured by the sensor 10, and the X-axis origin B of the second tool rest is determined from the difference between this measured value and the origin A of the first tool rest. .

実施例 以下本発明の実施例を図面にことづき説明す
る。同時4軸制御される周知のNC旋盤の主軸台
1に回転可能に軸承される主軸2の先端にチヤツ
ク3が嵌着されており、このチヤツク3の中心に
特別に基準リング4を同心に保持されるようにな
つている。ベツド上で主軸中心より後側にはX,
Z軸方向に移動制御されタレツト6を有する第1
刃物台5が、またベツド上で主軸中心より前側に
はX,Z軸方向に移動制御され第1刃物台5と対
応しタレツト7を有する第2刃物台8が載置され
ている。そして第1刃物台5のタレツト6の1つ
の工具取り付け面には基準リング4の内径を測定
できるフイーラ9を有するX軸方向+−2方向の
検出能力を有するタツチセンサ10が取り付けら
れている。また第2刃物台8のタレツト割り出し
うる1面に主軸軸線と平行な第2刃物台の基準面
11が形成されている。
Embodiments Examples of the present invention will be described below with reference to the drawings. A chuck 3 is fitted to the tip of a main spindle 2 rotatably supported on a headstock 1 of a well-known NC lathe that is simultaneously controlled with four axes, and a reference ring 4 is specially held concentrically at the center of this chuck 3. It is becoming more and more common. On the bed, there is an X on the back side of the main shaft center.
The first turret 6 has a turret 6 whose movement is controlled in the Z-axis direction.
In addition to the tool rest 5, a second tool rest 8 having a turret 7 and corresponding to the first tool rest 5 is placed on the bed in front of the center of the spindle and is controlled to move in the X and Z axis directions. A touch sensor 10 having a feeler 9 capable of measuring the inner diameter of the reference ring 4 and having detection capability in the +-2 directions of the X-axis is attached to one tool mounting surface of the turret 6 of the first tool post 5. Further, a reference surface 11 of the second tool rest parallel to the spindle axis is formed on one surface of the second tool rest 8 from which the turret can be indexed.

作 用 連続運転によつて環境条件の変化の影響がでる
という時期に工作物の加工を中断し、先ずタレツ
ト6を旋回してタツチセンサ10を加工位置に割
り出し第1刃物台5をX,Z軸位置制御してタツ
チセンサ10のフイーラ9をチヤツクの正面ほぼ
主軸中心A点に位置決めする。次いで−Z軸制御
してフイーラ9が基準リング4のほぼ中央のB点
に位置決めする。次いで+X軸制御してフイーラ
9が基準リング4の内径に接触させ、その位置を
C点とし、タツチ信号でX軸送りを停止するとと
もにX軸の現在位置を読みとり記憶させる。次い
で−X軸方向に制御してフイーラ9を基準リング
4の内径の180゜反対側で接触させ、その位置をD
点とし、タツチ信号でX軸送りを停止するととも
にX軸の現在位置を読み取り記憶させる。その後
+X軸制御してB点、+Z軸制御して第2刃物台
8のタレツト7の対向位置Eに位置決めする。こ
の時点でまたはそれより前に第2刃物台8のタレ
ツト7を旋回させ基準面11をタツチセンサ10
と対向できる位置に割り出す。次いで第1刃物台
を−X軸制御してタツチセンサ10のフイーラ9
を基準面11と接触させ、この位置をFとし、タ
ツチ信号によつてX軸送りを停止するとともにX
軸の現在値を読み取り記憶させる。即ち第1刃物
台5を基準としたときの第2刃物台の位置を求め
る。これ等の記憶値のうち(Cを現在値+Dの現
在値)/2の演算おNC装置内で行わせこの値よ
り第1刃物台5の原点Aを求める。次にこの(原
点A−Fの現在値)の演算を行い第2刃物台の原
点Bを求める。このようにして求めた原点A,B
により第1刃物台、第2刃物台の今までの原点を
補正するものである。
Operation When continuous operation is affected by changes in environmental conditions, the machining of the workpiece is interrupted, first the turret 6 is rotated, the touch sensor 10 is indexed to the machining position, and the first tool rest 5 is moved along the X and Z axes. The feeler 9 of the touch sensor 10 is positioned in front of the chuck at point A, which is approximately at the center of the main axis, by controlling the position. Next, the feeler 9 is positioned at point B approximately in the center of the reference ring 4 by -Z axis control. Next, +X-axis control is performed to bring the feeler 9 into contact with the inner diameter of the reference ring 4, and that position is set as point C. The X-axis feed is stopped by a touch signal, and the current position of the X-axis is read and memorized. Next, the feeler 9 is brought into contact with the reference ring 4 on the opposite side of the inner diameter by controlling it in the -X axis direction, and its position is adjusted to D.
point, stop the X-axis feed with a touch signal, and read and store the current position of the X-axis. Thereafter, +X-axis control is performed to position the point B, and +Z-axis control is performed to position it at a position E facing the turret 7 of the second tool post 8. At this point or before, the turret 7 of the second tool post 8 is rotated so that the reference surface 11 is connected to the touch sensor 10.
Find a position where you can face it. Next, the feeler 9 of the touch sensor 10 is controlled by controlling the -X axis of the first tool rest.
is brought into contact with the reference surface 11, this position is set as F, and the X-axis feed is stopped by the touch signal, and the
Read and store the current value of the axis. That is, the position of the second tool rest with respect to the first tool rest 5 is determined. Among these stored values, the calculation of (current value of C + current value of D)/2 is performed in the NC device, and the origin A of the first tool rest 5 is determined from this value. Next, this (current value of the origin A-F) is calculated to determine the origin B of the second tool post. Origins A and B obtained in this way
This is to correct the original origin of the first and second tool rests.

効 果 以上詳述したように本発明は2刃物台の第1刃
物台に設けたタツチセンサでチヤツクと同心に設
けた基準リングの内径および第2刃物台に設けて
基準面にタツチセンサをNC制御で接触させてこ
の時点のX軸現在値にもとづき演算によつて第1
刃物台、第2刃物台のそれぞれの原点を求められ
るため、タツチセンサが1個で足りコストを増大
させずにタツチセンサが取り付けられていない第
2刃物台側の原点も第1刃物台なみに正確に求め
ることができ、両者同じ制度と原点補正が可能と
なつて長時間運転でも高精度のワーク計測ができ
る効果を有する。
Effects As detailed above, the present invention uses a touch sensor provided on the first tool post of a dual tool post to touch the inner diameter of the reference ring provided concentrically with the chuck, and a touch sensor provided on the second tool post on the reference surface using NC control. The first value is calculated based on the current value of the
Since the origin of each of the turret and the second turret is determined, one touch sensor is sufficient and the origin of the second turret, where no touch sensor is not attached, can be made as accurate as the first turret without increasing the cost. It is possible to obtain the same accuracy and origin correction for both, which has the effect of enabling highly accurate workpiece measurement even during long-time operation.

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

第1図は計測説明図、第2図は原点補正のフロ
ーを示す図である。 3……チヤツク、4……基準リング、5……第
1刃物台、8……第2刃物台、10……タツチセ
ンサ、11……基準面。
FIG. 1 is a measurement explanatory diagram, and FIG. 2 is a diagram showing the flow of origin correction. 3...Chuck, 4...Reference ring, 5...First tool post, 8...Second tool post, 10...Touch sensor, 11...Reference surface.

Claims (1)

【特許請求の範囲】[Claims] 1 それぞれ独立して位置制御される2個の刃物
台を有するNC旋盤において、第1刃物台に設け
たセンサによって主軸中心と同軸に設けた基準リ
ングゲージの直径を計測して演算により第1刃物
台のX軸原点Aを求め、前記センサにより第2刃
物台のX軸方向基準面を計測しこの測定値と第1
刃物台の原点Aとの差により第2刃物台のX軸原
点Bを求めるようになしたことを特徴する2刃物
台を有する4軸制御NC旋盤の刃物台原点の修正
方法。
1 In an NC lathe that has two tool rests whose positions are controlled independently, the diameter of a reference ring gauge installed coaxially with the center of the spindle is measured by a sensor installed on the first tool rest, and the diameter of the reference ring gauge installed coaxially with the center of the spindle is calculated. Determine the X-axis origin A of the table, measure the X-axis direction reference plane of the second tool post using the sensor, and combine this measurement value with the first
A method for correcting the origin of a tool post of a 4-axis controlled NC lathe having two turrets, characterized in that the X-axis origin B of a second tool post is determined based on the difference from the origin A of the tool post.
JP21573385A 1985-09-28 1985-09-28 Correcting method for tool rest datum of 4-axis nc lathe with two tool rests Granted JPS6274507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21573385A JPS6274507A (en) 1985-09-28 1985-09-28 Correcting method for tool rest datum of 4-axis nc lathe with two tool rests

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21573385A JPS6274507A (en) 1985-09-28 1985-09-28 Correcting method for tool rest datum of 4-axis nc lathe with two tool rests

Publications (2)

Publication Number Publication Date
JPS6274507A JPS6274507A (en) 1987-04-06
JPH0367823B2 true JPH0367823B2 (en) 1991-10-24

Family

ID=16677291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21573385A Granted JPS6274507A (en) 1985-09-28 1985-09-28 Correcting method for tool rest datum of 4-axis nc lathe with two tool rests

Country Status (1)

Country Link
JP (1) JPS6274507A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01246045A (en) * 1988-03-28 1989-10-02 Yamazaki Mazak Corp Setting control of machining coordinate system in machine tool
JPH0692060B2 (en) * 1988-11-30 1994-11-16 オ−クマ株式会社 Correction method for misalignment of Y-axis in the turret tool post
JP3604473B2 (en) * 1995-10-24 2004-12-22 オークマ株式会社 Machine Tools
JPH10235539A (en) * 1997-02-25 1998-09-08 Okuma Mach Works Ltd Measuring device for lathe
JP4898290B2 (en) * 2006-05-22 2012-03-14 富士機械製造株式会社 Work transfer device with electric chuck with measurement function
CN101528413B (en) * 2006-10-26 2013-07-24 株式会社津上 Lathe and method of machining by lathe
JP5374235B2 (en) * 2009-05-26 2013-12-25 ファナック株式会社 Workpiece mounting mechanism or measuring jig for rotating table used for measuring machining reference point on inclined rotating shaft, and measuring method

Also Published As

Publication number Publication date
JPS6274507A (en) 1987-04-06

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