Edged Corner Shaping and Pocket Milling by Means of 6-Axis Control Machining

通过 6 轴控制加工进行棱角整形和型腔铣削

基本信息

批准号：
08455073
负责人：
TAKEUCHI Yoshimi
金额：
$ 4.93万
依托单位：
University of Electro-Communications
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08455073/
关键词：
6-axis control machining non-rotational cutting tool CAM software sculptured surface corner shaping pocket milling

项目摘要

The study deals with a new machining concept by making use of 6-axis control. 6-axis control implies that a cutting tool allows three rotational movements for positioning as well as three translational ones. A 6-axis control machining center is equipped with a main spindle cpable of tool orientation in addition to conventional 5-axis control sturcture. Non-rotational cutting tool is mounted at the main spindle to carry out the 6-axis control machining, which allows a variety of machining possibilities. The study deals with the development of a software system for corner shaping by use of a non-rotational cutting tool. Conrner shaping is one of typical examples of 6-axis control machining. The corner shape formed by conventional rotational tools has a round, which is impossible to remove without manual finishing. Thus, a non-rotational cutting tool was developed to remove the remaining. The tool can not only finish a sculptured surface of a corner with the side cutting edge, but also form a sharp curved line of a corner with the top cutting edge. A sharp curved line without a round is obtained by feeding the non-rotational cutting tool along the curved line, while keeping the cutting edge tangent to the sculptured surface. From an experimental result of corner shaping, it is found that the system is valid to obtain workpieces consisting of sculptured surfaces without round conrner. The method is further expanded to machine a pocket milling consisting of planes and sculptured surfaces. A non-rotational cutting tool is fed along with a cross-sectional curved line between sculptured surface and a given plane. A generated CL data are transformed to the actual 6-axis control NC data. The validity of CAM software developed in the study is also found from experimental results.

该研究利用 6 轴控制来探讨新的加工概念。 6 轴控制意味着切削刀具允许三个旋转运动用于定位以及三个平移运动。六轴控制加工中心除了传统的五轴控制结构外，还配备了可进行刀具定向的主轴。主轴上安装非旋转刀具，进行六轴控制加工，实现多种加工可能性。该研究涉及开发使用非旋转切削刀具进行拐角成形的软件系统。拐角成形是六轴控制加工的典型例子之一。传统旋转工具形成的角部形状具有圆形，如果不进行手工精加工则无法去除。因此，开发了一种非旋转切削工具来去除残留物。该刀具不仅能用侧切削刃精加工出拐角的雕刻表面，而且能用顶切削刃形成尖锐的拐角曲线。通过非旋转切削刀具沿着曲线进给，同时保持切削刃与雕刻表面相切，可以获得没有圆角的锐利曲线。转角整形实验结果表明，该系统对于获得无圆角的雕刻曲面工件是有效的。该方法进一步扩展到加工由平面和雕刻表面组成的型腔铣削。非旋转切削刀具沿着雕刻表面和给定平面之间的横截面曲线进给。生成的 CL 数据被转换为实际的 6 轴控制 NC 数据。实验结果也证明了本研究开发的 CAM 软件的有效性。