JP3394972B2 - Automatic machine tool - Google Patents
Automatic machine toolInfo
- Publication number
- JP3394972B2 JP3394972B2 JP04233294A JP4233294A JP3394972B2 JP 3394972 B2 JP3394972 B2 JP 3394972B2 JP 04233294 A JP04233294 A JP 04233294A JP 4233294 A JP4233294 A JP 4233294A JP 3394972 B2 JP3394972 B2 JP 3394972B2
- Authority
- JP
- Japan
- Prior art keywords
- tool
- reflector
- automatic machine
- coordinates
- movement
- 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
Links
Landscapes
- Instruments For Measurement Of Length By Optical Means (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の利用分野】本発明は自動工作機械に係り、特
に、大型の自動工作機械の加工精度の改良に関する。
【０００２】
【従来の技術】従来、マシンニングセンタやＮＣ工作機
械等の自動工作機械は、Ｘ、Ｙの２軸、又はＸ、Ｙ、Ｚ
の３軸に備えた測長スケールで工具取付け軸の先端部に
取り付けられた工具の２次元又は３次元の座標を検出
し、その検出結果から工具の現在位置を確認すると共
に、確認した工具の現在位置と予め工具移動経路に従っ
て指令された指令位置とを比較補正しながら前記工具を
ワークに対して相対的に指令位置に移動させることによ
りワークを加工していく。従って、自動工作機械の加工
精度は、工具の座標を検出する測長スケールの精度が重
要になる。
【０００３】
【発明が解決しようとする課題】しかしながら、従来の
自動工作機械に備えられる測長スケールの場合、測長ス
ケールが通常取り付けられる各軸の案内面の精度や、測
長スケールと案内面の材質の違いによる熱伸縮差、或い
は、各軸の静的変形や動的変形等の検出誤差要因の影響
を受け易く、工具の座標を高精度に検出することが難し
いという欠点があった。特に、大型の自動工作機械で
は、工具の位置と測長スケールとの距離が大きくなるの
で、所謂アッベの原理から外れて測長スケールでの検出
誤差が拡大し易い。
【０００４】従って、特に大型の自動工作機械の場合、
加工精度を向上させることが難しかった。本発明は、こ
のような事情に鑑みてなされたもので、各軸の案内面の
精度や材質に影響されず、大型でも高精度な加工精度を
得ることのできる自動工作機械を提供することを目的と
する。
【０００５】
【課題を解決する為の手段】本発明は、前記目的を達成
する為に、工具取付け軸に取付けた工具の座標を検出手
段で検出し、その検出結果から前記工具の現在位置を確
認すると共に、確認した工具の現在位置と予め工具移動
経路に従って指令された指令位置とを比較補正しながら
前記工具をワークに対して相対的に指令位置に移動させ
ることによりワークを加工していく自動工作機械に於い
て、前記検出手段は、前記工具取付け軸に取付けられた
反射体と、前記反射体を追尾して、その追尾する反射体
の移動量を測定すると共に、反射体の移動量から前記工
具の座標を検出する４基のレーザ追尾式測定装置と、か
ら成り、前記４基のレーザ追尾式測定装置で前記工具の
３次元座標を測定すると共に、前記レーザ追尾式測定装
置の基準点間距離４基の相互距離の検定を行うことを特
徴とする。
【０００６】
【作用】本発明によれば、工具の座標を検出する検出手
段を、工具取付け軸に取付けられた反射体と、前記反射
体を追尾して、その追尾する反射体の移動量を測定する
と共に、反射体の移動量から前記工具の座標を検出する
レーザ追尾式測定装置と、から構成した。これにより、
自動工作機械の各軸の案内面とは別のところに測定基準
が設けられるので、案内面とは無関係に工具の座標を検
出することができる。
【０００７】
【実施例】以下添付図面に従って本発明に係る自動工作
機械の好ましい実施例について詳説する。図１は、本発
明の自動工作機械の一例で門型マシンニングセンタ１０
の斜視図である。
【０００８】図１に示すように、門型マシンニングセン
タ１０は、Ｘ軸方向に移動自在なＸキャリッジ１２、Ｘ
キャリッジ１２の中をＺ軸方向に移動自在な工具取付け
軸１４及び基台１６上を前後方向、即ちＹ軸方向にスラ
イドするＹ軸テーブル１８を有すると共に、工具取付け
軸１４の先端部に工具１４Ａが取付けられる。そして、
制御部１５からの工具移動経路を指令する指令情報に従
ってサーボモータ等の図示しない駆動手段がＸキャリッ
ジ１２、Ｙ軸テーブル１８及び工具取付け軸１４を図中
Ｘ−Ｘ方向、Ｙ−Ｙ方向、Ｚ−Ｚ方向に駆動して工具１
４Ａを移動させると共に、工具１４Ａの座標が後記する
検出手段により検出されて制御部１５に逐次フィードバ
ックされる。
【０００９】次に、工具１４Ａの座標を検出する検出手
段について説明する。検出手段は、主として工具取付け
軸１４に取付けられた反射体２４と、反射体２４を追尾
して、その追尾する反射体２４の移動量を測定すると共
に、反射体２４の移動量データから工具１４Ａの座標を
検出するレーザ追尾式の測定装置２０とで構成される。
また、レーザ追尾式の測定装置２０はＹ軸テーブル１８
の後端に設けられ、測定装置２０はその前面４隅に追尾
式レーザ干渉計２２、２２…が図示しない回転支持機構
を介して夫々設けられる。この回転支持機構により反射
レーザ光を追尾できるようになっている。一方、工具取
付け軸１４の先端部近傍には、反射体２４が前記追尾式
レーザ干渉計側２２に向けて取付けられている。これに
より、工具取付け軸１４の移動と共に移動する反射体２
４に各追尾式レーザ干渉計２２からレーザ光を照射し
て、反射体２４から反射した反射レーザ光を追尾するこ
とにより反射体２４の移動量を測定する。そして、測定
された反射体２４の移動量データは、測定装置２０内の
演算処理部で演算されて反射体２４の基準点から所定距
離だけ離れた工具１４Ａのヘッド部１４ａの座標として
表されるようになっている。尚、Ｙ軸テーブル１８の移
動においては、反射体２４はＹ軸テーブル１６と共に移
動する追尾式レーザ干渉計２２に対して相対的に変位す
る。
【００１０】次に、上記の如く構成された本発明の自動
工作機械の一例である門型マシンニングセンタ１０でワ
ーク（図示せず）を加工する方法を説明する。ワークを
加工する場合、先ず、ワークをＹ軸テーブル１８の所定
位置に固定する。次に、制御部１５からの工具移動経路
を指令する指令情報に従ってＸキャリッジ１２、Ｙ軸テ
ーブル１８及び工具取付け軸１４を駆動して工具１４Ａ
を移動させる。これにより、工具取付け軸１４に取付け
られた反射体２４も工具１４Ａの移動に伴われて移動す
るので、レーザ追尾式の測定装置２０の追尾式レーザ干
渉計２２により反射体２４を追尾して反射体２４の移動
量を測定し、測定した反射体２４の移動量データを測定
装置２０内の演算処理部で演算して工具１４Ａのヘッド
部１４ａの座標として表わす。
【００１１】次に、レーザ追尾式の測定装置２０で検出
された工具１４Ａの座標は制御部１５にフィードバック
される。制御部１５では、測定装置２０で検出された座
標から工具１４Ａの現在位置を確認すると共に、確認し
た工具１４Ａの現在位置と前記指令情報で指令された指
令位置とを比較してＸキャリッジ１２、Ｙ軸テーブル１
８及び工具取付け軸１４の駆動を補正し、工具１４Ａを
ワークに対して相対的に指令位置に移動させることによ
りワークを加工していく。これにより、工具１４Ａの移
動補正を自動的に行いながらワークを加工することがで
きる。
【００１２】次に、工具１４Ａのヘッド部１４ａの座標
を検出する検出手段を、工具取付け軸１４に取付けられ
た反射体２４と、反射体２４を追尾して、その追尾する
反射体２４の移動量を測定すると共に、反射体２４の移
動量データから工具１４Ａの座標を検出するレーザ追尾
式の測定装置２０とで構成したことによる作用効果を説
明する。
【００１３】上記のように検出手段を構成したので、前
述したワークの加工方法から分かるように、門型マシン
ニングセンタ１０のＸ、Ｙ、Ｚの各軸の案内面とは無関
係に工具１４Ａの座標を検出することができる。これに
より、従来の門型マシンニングセンタの検出手段である
測長スケールのように案内面の精度や材質に影響を受け
ることがないと共に、各軸の静的な構造や移動に伴う動
的変形にも影響されることがなく、更には、測定基準が
レーザであり、レーザは測長スケールの精度検定に用い
られるものであるから、測長スケールに比べて測長精度
そのものを向上させることができる。また、追尾式レー
ザ干渉計２２で反射体２４を追尾する方式は、広い範囲
に渡って精度良く反射体の移動量を測定でき、工具１４
Ａの座標の検出精度が良くなる。従って、工具１４Ａの
座標を検出する検出精度を向上させることができるの
で、門型マシンニングセンタ１０の加工精度を向上で
き、特に大型の門型マシンニングセンタ１０でも高精度
の加工精度を得ることができる。
【００１４】尚、本実施例では、３次元の自動工作機械
の例で説明したが、２次元の自動工作機械にも適用で
き、この場合は図２に示すように、レーザ追尾式の測定
装置２０を門型マシンニングセンタ１０を設置する床に
固定することによって、Ｘキャリッジ１２と工具取付け
軸１４の座標を検出する。また、３基の追尾式レーザ干
渉計２２があれば反射体２４の移動量を測定することは
可能であるが、本実施例のように４基の追尾式レーザ干
渉計２２を使用すれば、追尾式レーザ干渉計２２の基準
点間距離４基の相互距離の検定を行うことができると共
に、１基の追尾式レーザ干渉計２２と反射体２４の間の
光路に障害物があっても測定を行うことができる。ま
た、本発明の自動工作機械は、門型マシンニングセンタ
１０に限定されることはなく、縦型或いは横型のマシン
ニングセンタにも適用することができる。更には、自動
工作機械でも特に２軸以上の直線運動または円弧運動
（回転運動は除く）する構造のものに適用することがで
きる。また、工具取付け軸１４に固定する反射体の数は
１個に限定するものではない。
【００１５】
【発明の効果】以上説明したように、本発明の自動工作
機械によれば、工具の座標を検出する検出手段を、工具
取付け軸に取付けられた反射体と、前記反射体を追尾し
て、その追尾する反射体の移動量を測定すると共に、反
射体の移動量から前記工具の座標を検出するレーザ追尾
式の測定装置と、から構成したので、自動工作機械の各
軸の案内面とは無関係に工具の座標を検出できる。
【００１６】これにより、従来の自動工作機械の検出手
段である測長スケールのように案内面の精度や材質に影
響を受けることがないと共に、各軸の静的な構造や移動
に伴う動的変形にも影響されることがなく、更には、測
長スケールに比べて測長精度そのものを向上させること
ができる。また、レーザ追尾式の場合、広い範囲に渡っ
て精度良く工具の座標を検出できる。
【００１７】従って、工具の座標を検出する検出精度を
向上させることができるので、自動工作機械の加工精度
を向上でき、特に大型の自動工作機械でも高精度の加工
精度を得ることができる。また、４基のレーザ追尾式測
定装置を使用するので、レーザ追尾式測定装置の基準点
間距離４基の相互距離の検定を行うことができると共
に、１基のレーザ追尾式測定装置と反射体の間の光路に
障害物があっても測定を行うことができる。 Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic machine tool, and more particularly to an improvement in machining accuracy of a large automatic machine tool. 2. Description of the Related Art Conventionally, automatic machine tools such as a machining center and an NC machine tool have two axes of X and Y or X, Y and Z.
The two-dimensional or three-dimensional coordinates of the tool attached to the tip of the tool attachment axis are detected by the length measuring scale provided for the three axes, and the current position of the tool is confirmed from the detection result, and the confirmed tool The workpiece is machined by moving the tool relatively to the workpiece to the commanded position while comparing and correcting the current position and a commanded position previously instructed according to the tool movement path. Therefore, the accuracy of the length measurement scale for detecting the coordinates of the tool is important for the processing accuracy of the automatic machine tool. [0003] However, in the case of a length measuring scale provided in a conventional automatic machine tool, however, the accuracy of the guide surface of each axis to which the length measuring scale is usually mounted, and the length measuring scale and the guide surface. However, there is a disadvantage that it is easily affected by a detection error factor such as a difference in thermal expansion or contraction due to a difference in material of each of the above or static deformation and dynamic deformation of each axis, and it is difficult to detect the coordinates of the tool with high accuracy. In particular, in a large-sized automatic machine tool, the distance between the position of the tool and the length measuring scale becomes large, so that the detection error on the length measuring scale is likely to deviate from the so-called Abbe principle. Therefore, especially in the case of a large automatic machine tool,
It was difficult to improve the processing accuracy. The present invention has been made in view of such circumstances, and it is an object of the present invention to provide an automatic machine tool capable of obtaining high-precision machining accuracy even in a large size without being affected by the accuracy and material of a guide surface of each shaft. Aim. According to the present invention, in order to achieve the above object, the coordinates of a tool mounted on a tool mounting shaft are detected by detecting means, and the current position of the tool is determined from the detection result. Work is performed by moving the tool to the command position relatively to the work while checking and confirming the current position of the tool and the command position previously commanded according to the tool movement path in advance. In the automatic machine tool, the detecting means tracks the reflector mounted on the tool mounting shaft and the reflector, measures the amount of movement of the reflector to be tracked, and measures the amount of movement of the reflector. from Ri consists, laser tracking type measuring apparatus four to detect the coordinates of the tool, the tool is a laser tracking type measuring apparatus of the four
In addition to measuring three-dimensional coordinates, the laser tracking measurement device
It is characterized in that the mutual distance of the four reference point distances is tested . According to the present invention, the detecting means for detecting the coordinates of the tool includes a reflector mounted on the tool mounting shaft, the tracking of the reflector, and the amount of movement of the reflector to be tracked. And a laser tracking type measuring device that measures the coordinates of the tool from the amount of movement of the reflector. This allows
Since the measurement reference is provided separately from the guide surface of each axis of the automatic machine tool, the coordinates of the tool can be detected independently of the guide surface. Preferred embodiments of an automatic machine tool according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 shows an example of an automatic machine tool according to the present invention.
It is a perspective view of. As shown in FIG. 1, a portal type machining center 10 has an X carriage 12, which is movable in the X-axis direction.
It has a tool mounting shaft 14 movable in the Z-axis direction in the carriage 12 and a Y-axis table 18 that slides on the base 16 in the front-rear direction, that is, in the Y-axis direction. Is attached. And
Drive means (not shown), such as a servomotor, moves the X carriage 12, Y-axis table 18, and tool mounting shaft 14 in the XX direction, YY direction, Z Drive tool 1 in the -Z direction
4A is moved, and the coordinates of the tool 14A are detected by detection means described later and are sequentially fed back to the control unit 15. Next, detection means for detecting the coordinates of the tool 14A will be described. The detecting means mainly tracks the reflector 24 attached to the tool mounting shaft 14, the reflector 24, measures the amount of movement of the reflector 24 to be tracked, and detects the tool 14A from the movement amount data of the reflector 24. And a laser tracking type measuring device 20 for detecting the coordinates of
In addition, the laser tracking type measuring device 20 is a Y-axis table 18.
Are provided at the rear end, and tracking laser interferometers 22, 22,... Are respectively provided at four corners of the front surface thereof via rotation support mechanisms (not shown). The reflected laser light can be tracked by this rotation support mechanism. On the other hand, a reflector 24 is mounted near the tip of the tool mounting shaft 14 toward the tracking type laser interferometer 22. Thereby, the reflector 2 that moves with the movement of the tool mounting shaft 14
4 irradiates laser light from each tracking type laser interferometer 22 and tracks the reflected laser light reflected from the reflector 24 to measure the movement amount of the reflector 24. The measured movement amount data of the reflector 24 is calculated by an arithmetic processing unit in the measuring device 20 and is represented as the coordinates of the head 14a of the tool 14A separated from the reference point of the reflector 24 by a predetermined distance. It has become. When the Y-axis table 18 moves, the reflector 24 is displaced relatively to the tracking laser interferometer 22 that moves together with the Y-axis table 16. Next, a method of processing a work (not shown) by the portal type machining center 10 which is an example of the automatic machine tool of the present invention configured as described above will be described. When processing a work, first, the work is fixed at a predetermined position on the Y-axis table 18. Next, the X carriage 12, the Y-axis table 18, and the tool mounting shaft 14 are driven in accordance with command information for commanding a tool moving path from the control unit 15 to drive the tool 14A.
To move. As a result, the reflector 24 attached to the tool attachment shaft 14 also moves with the movement of the tool 14A, so that the reflector 24 is tracked and reflected by the tracking laser interferometer 22 of the laser tracking measuring device 20. The amount of movement of the body 24 is measured, and the measured data of the amount of movement of the reflector 24 is calculated by an arithmetic processing unit in the measuring device 20 and is represented as coordinates of the head 14a of the tool 14A. Next, the coordinates of the tool 14A detected by the laser tracking type measuring device 20 are fed back to the control unit 15. The control unit 15 confirms the current position of the tool 14A from the coordinates detected by the measuring device 20, compares the confirmed current position of the tool 14A with the commanded position commanded by the command information, and compares the X carriage 12, Y axis table 1
The workpiece is machined by correcting the drive of the tool 8 and the tool mounting shaft 14 and moving the tool 14A to a command position relatively to the workpiece. Thus, the workpiece can be machined while automatically correcting the movement of the tool 14A. Next, a detecting means for detecting the coordinates of the head portion 14a of the tool 14A is provided with a reflector 24 attached to the tool mounting shaft 14, a tracking of the reflector 24, and a movement of the reflector 24 to be tracked. A description will be given of the operation and effect of the laser tracking type measuring device 20 which measures the amount and detects the coordinates of the tool 14A from the movement amount data of the reflector 24. Since the detecting means is constituted as described above, as can be seen from the above-described work processing method, the tool 14A of the portal type machining center 10 is independent of the guide surfaces of the X, Y and Z axes. Coordinates can be detected. As a result, the accuracy and material of the guide surface are not affected by the length measuring scale, which is the detection means of the conventional portal-type machining center, and the dynamic deformation due to the static structure and movement of each axis In addition, the measurement standard is a laser, and the laser is used for the accuracy verification of the length measurement scale. Therefore, the measurement accuracy itself can be improved as compared with the length measurement scale. it can. In addition, the method of tracking the reflector 24 by the tracking laser interferometer 22 can accurately measure the amount of movement of the reflector over a wide range.
The detection accuracy of the coordinates of A is improved. Therefore, since the detection accuracy for detecting the coordinates of the tool 14A can be improved, the processing accuracy of the portal machining center 10 can be improved, and in particular, even with the large portal machining center 10, high processing accuracy can be obtained. Can be. Although this embodiment has been described with reference to an example of a three-dimensional automatic machine tool, the present invention can also be applied to a two-dimensional automatic machine tool. In this case, as shown in FIG. The coordinates of the X carriage 12 and the tool mounting shaft 14 are detected by fixing 20 to the floor on which the portal type machining center 10 is installed. Also, if there are three tracking laser interferometers 22, it is possible to measure the amount of movement of the reflector 24. However, if four tracking laser interferometers 22 are used as in this embodiment, The distance between the reference points of the tracking laser interferometer 22 can be tested for the mutual distance, and even if there is an obstacle in the optical path between the tracking laser interferometer 22 and the reflector 24, it can be measured. It can be performed. Further, the automatic machine tool of the present invention is not limited to the portal type machining center 10, but can be applied to a vertical or horizontal type machining center. Further, the present invention is also applicable to an automatic machine tool having a structure in which two or more axes move linearly or circularly (excluding rotational movement). Further, the number of reflectors fixed to the tool mounting shaft 14 is not limited to one. As described above, according to the automatic machine tool of the present invention, the detecting means for detecting the coordinates of the tool includes the reflector mounted on the tool mounting shaft and the reflector. And a laser tracking type measuring device that measures the amount of movement of the reflector to be tracked and detects the coordinates of the tool from the amount of movement of the reflector, so that each axis of the automatic machine tool is guided. The coordinates of the tool can be detected independently of the surface. Thus, the accuracy and material of the guide surface are not affected by the length measuring scale, which is the detecting means of the conventional automatic machine tool, and the dynamic structure associated with the static structure and movement of each axis. It is not affected by the deformation, and the length measurement accuracy itself can be improved as compared with the length measurement scale. In the case of the laser tracking method, the coordinates of the tool can be detected with high accuracy over a wide range. Therefore, the detection accuracy for detecting the coordinates of the tool can be improved, so that the processing accuracy of the automatic machine tool can be improved, and particularly, even with a large automatic machine tool, high processing accuracy can be obtained. In addition, four laser tracking type measurement
The reference point of the laser tracking type measuring device
It is possible to test the mutual distance of four units.
In the optical path between one laser tracking measuring device and the reflector
Measurement can be performed even if there is an obstacle.
【図面の簡単な説明】
【図１】図１は、本発明の自動工作機械の門型マシンニ
ングセンタの一例で、測定装置をＹ軸テーブル上に配置
した斜視図
【図２】図２は、本発明の自動工作機械の門型マシンニ
ングセンタの一例で、測定装置を床上に配置した斜視図
【符号の説明】
１０…門型マシンニングセンタ
１２…Ｘキャリッジ
１４…工具取付け軸
１４Ａ…工具
１５…制御部
１６…基台
１８…Ｙ軸テーブル
２０…測定装置
２２…追尾式レーザ干渉計
２４…反射体BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an example of a portal type machining center of an automatic machine tool according to the present invention, and is a perspective view in which a measuring device is arranged on a Y-axis table. A perspective view of an example of a portal type machining center of an automatic machine tool according to the present invention, in which a measuring device is arranged on a floor. [Description of Signs] 10 ... Portal type machining center 12 ... X carriage 14 ... Tool mounting shaft 14A ... Tool 15 Control unit 16 Base 18 Y-axis table 20 Measuring device 22 Tracking laser interferometer 24 Reflector
───────────────────────────────────────────────────── フロントページの続き (72)発明者 後藤 充夫 茨城県つくば市梅園１丁目１番４ 工業 技術院 計量研究所内 (72)発明者 中村 収 茨城県つくば市梅園１丁目１番４ 工業 技術院 計量研究所内 (72)発明者 谷村 吉久 茨城県つくば市梅園１丁目１番４ 工業 技術院 計量研究所内 (72)発明者 辻 幹男 東京都三鷹市下連雀九丁目７番１号 株 式会社東京精密内 (56)参考文献 特開 平２−249909（ＪＰ，Ａ) 特開 平２−119120（ＪＰ，Ａ) 特開 平７−239209（ＪＰ，Ａ) 特開 平７−239217（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B23Q 17/00 - 23/00 G01B 9/02 G01B 11/00 - 11/30 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Mitsuo Goto 1-1-4 Umezono, Tsukuba City, Ibaraki Pref. Institute of Metrology (72) Inventor Osamu Nakamura 1-4-1 Umezono, Tsukuba City, Ibaraki Pref. Inside the Metrology Research Institute (72) Inventor Yoshihisa Tanimura 1-1-4 Umezono, Tsukuba, Ibaraki Pref.Institute of Metrology (72) Inventor Mikio Tsuji 9-7-1 Shimorenjaku, Mitaka-shi, Tokyo (56) References JP-A-2-249909 (JP, A) JP-A-2-119120 (JP, A) JP-A-7-239209 (JP, A) JP-A-7-239217 (JP, A) ( 58) Fields surveyed (Int.Cl. 7 , DB name) B23Q 17/00-23/00 G01B 9/02 G01B 11/00-11/30
Claims (1)
出手段で検出し、その検出結果から前記工具の現在位置
を確認すると共に、確認した工具の現在位置と予め工具
移動経路に従って指令された指令位置とを比較補正しな
がら前記工具をワークに対して相対的に指令位置に移動
させることによりワークを加工していく自動工作機械に
於いて、 前記検出手段は、 前記工具取付け軸に取付けられた反射体と、 前記反射体を追尾して、その追尾する反射体の移動量を
測定すると共に、反射体の移動量から前記工具の座標を
検出する４基のレーザ追尾式測定装置と、から成り、 前記４基のレーザ追尾式測定装置で前記工具の３次元座
標を測定すると共に、前記レーザ追尾式測定装置の基準
点間距離４基の相互距離の検定を行う ことを特徴とする
自動工作機械。(57) [Claims] [Claim 1] The coordinates of a tool mounted on a tool mounting shaft are detected by a detecting means, the current position of the tool is confirmed from the detection result, and the current position of the confirmed tool is confirmed. An automatic machine tool for processing a workpiece by moving the tool to a commanded position relative to the workpiece while comparing and correcting a commanded location instructed according to a tool movement path in advance. It includes a reflector attached to the tool mounting shaft, and tracking the reflector, as well as measuring the amount of movement of the reflector to the tracking, to detect the coordinates of the tool from the amount of movement of the reflector four a laser tracking type measuring apparatus, formed Ri from 3D seat of the tool in the laser tracking type measuring apparatus of the four
Measure the target and set the standard for the laser tracking type measuring device.
An automatic machine tool characterized by performing a test of a mutual distance between four points .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04233294A JP3394972B2 (en) | 1994-03-14 | 1994-03-14 | Automatic machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04233294A JP3394972B2 (en) | 1994-03-14 | 1994-03-14 | Automatic machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07246547A JPH07246547A (en) | 1995-09-26 |
| JP3394972B2 true JP3394972B2 (en) | 2003-04-07 |
Family
ID=12633060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04233294A Expired - Lifetime JP3394972B2 (en) | 1994-03-14 | 1994-03-14 | Automatic machine tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3394972B2 (en) |
Cited By (1)
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|---|---|---|---|---|
| KR102056493B1 (en) * | 2012-12-04 | 2019-12-16 | 두산공작기계 주식회사 | Position error correction device of machine tool using static displacement and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5541713B2 (en) * | 2009-08-21 | 2014-07-09 | キヤノン株式会社 | Laser interferometer, processing apparatus using the same, and method of manufacturing parts |
| CN102062575B (en) * | 2010-11-10 | 2012-07-04 | 西安交通大学 | Method for detecting geometric accuracy of numerically-controlled machine tool based on multi-channel laser time-sharing measurement |
| JP5745646B2 (en) * | 2011-11-30 | 2015-07-08 | 株式会社牧野フライス製作所 | Error measuring method and machine tool |
| ES2912525T3 (en) * | 2017-12-22 | 2022-05-26 | Ldi Finances | Three-dimensional target with double structure, device and optical measurement procedure with said target |
| TWI786221B (en) | 2017-12-22 | 2022-12-11 | 瑞士商謹觀股份公司 | Machine-tool with an optical measuring device for the three-dimensional registration between the tool-holder and the workpiece holder |
| CH714503A1 (en) * | 2017-12-22 | 2019-06-28 | Watch Out Sa | Machine tool with an optical measuring device for three-dimensional registration between the tool holder and the workpiece support. |
| CH714501B1 (en) * | 2017-12-22 | 2024-01-31 | Watchoutcorp Sa | Three-dimensional target with double structure, device and method for optical measurement with such a target. |
| CH716246A1 (en) | 2019-06-03 | 2020-12-15 | Watch Out Sa | Machining and machine tool module comprising a unit for monitoring tool wear, and methods for detecting the position, profile and wear of the tool. |
-
1994
- 1994-03-14 JP JP04233294A patent/JP3394972B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102056493B1 (en) * | 2012-12-04 | 2019-12-16 | 두산공작기계 주식회사 | Position error correction device of machine tool using static displacement and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07246547A (en) | 1995-09-26 |
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