著者
垣野 義昭 谷口 博之 安井 誠 上杉 憲一
出版者
公益社団法人精密工学会
雑誌
精密機械 (ISSN:03743543)
巻号頁・発行日
vol.48, no.2, pp.239-244, 1982-02-05
被引用文献数
3

工作機械の真直度誤差と直線運動誤差を測定する方法について研究した結果, 次のことがわかった.1)形状誤差の既知なストレートエッジマスタを5つの電気マイクロメータピックアップでトレースすることにより, 直線運動誤差の5つの成分を同時に精度良く測定することができる.2)ストレートエッジマスタの形状誤差が未知な場合には, 3点法による測定とデータ処理を行えば, ストレートエッジマスタの形状誤差と直線運動誤差を同時に精度良く測定できる.ただしこり場合には9個のピックアップを必要とする.3)測定した立てフライス盤については加工精度に直接関係する真直度誤差は500mmの測定範囲で3μmと小さかったが, 姿勢の変化は80μm/mと大きかった.
著者
村木 俊之 垣野 義昭 村上 大介
出版者
公益社団法人 精密工学会
雑誌
精密工学会誌 (ISSN:09120289)
巻号頁・発行日
vol.69, no.7, pp.965-969, 2003-07-05 (Released:2009-04-10)
参考文献数
4
被引用文献数
1 2

High speed dry turning is one of the most important themes in ecological manufacturing. But in conventional turning style, it is difficult to reduce cutting temperature because the cutting edge is contacted to the work-piece continuously. Then in mill-turning, high speed face milling is applied for machining of cylindrical parts, and it is possible to reduce cutting temperature by using high speed-interrupted-small depth cutting method so as high speed endmilling. In this study, we have made clear the ability of mill-turning, and optimum cutting conditions for tool life. So we developed the prototype cutters for mill-turning, and tested their performance
著者
鈴木 康彦 松原 厚 垣野 義昭
出版者
公益社団法人精密工学会
雑誌
精密工学会誌論文集 (ISSN:13488724)
巻号頁・発行日
vol.70, no.10, pp.1266-1270, 2004-10-05
被引用文献数
5

This paper deals with controlling feed rate for small circular motion on NC machine tools. Recently new machining methods using small circular interpolation with endmills or direct taps have been used for machining cylindrical holes or tapping. Accordingly, contouring accuracy is getting more important in the new method. Decision of feed rate that influences contouring accuracy is the most important and difficult. So far the maximum feed rate for circular motion is decided according to the normal acceleration constant rule. This rule is a good way to restrict errors due to difference of stiffness between two axes because the errors are mainly proportional to normal acceleration. In the case of small circles, the rule is of no service. That is why errors are increasing as angle speed increases even if normal acceleration is constant. Therefore, the new rule to decide feed rate for small circular motion is needed. This paper analyses what is related with the errors in case of small radii and proposes a new rule to decide feed rate for small circular motion.