UG固定轴曲面轮廓铣在三次B样条曲面加工中的应用  

The Application of UG Fixed-contour to the Machining of Two-parameter Cubic B-spline Curved Surface

作　　者：王小荣[1] 杨晋[1] 田亚平[1] 刘潇潇[1] 

机构地区：[1]兰州交通大学机电工程学院,甘肃兰州730030

出　　处：《机床与液压》2011年第5期90-91,120,共3页Machine Tool & Hydraulics

基　　金：甘肃省自然科学基金资助项目(2008GS02616)

摘　　要：采用UG/CAM固定轴曲面轮廓铣作用于复杂轮廓表面时,刀具跟随轮廓表面形状实施切削,可以实现复杂轮廓的高精度加工。UG/CAM提供的加工仿真功能可以直观地仿真零件加工过程,检验加工路径、碰撞干涉以获得正确刀轨。其强大的后处理功能,可以结合实际的数控系统生成正确的NC加工程序。以具有双参数三次B样条曲面零件为例,提出UG/CAM固定轴曲面轮廓铣的CAM思路及方法。试验结果表明:采用UG/CAM固定轴轮廓铣可以在三轴数控机床完成复杂型面的半精加工和精加工,能有效地降低加工成本,具有很高的实际应用价值。When UG/CAM fixed-contour milling is used in the machining of sophisticated contour, the tool cuts workpiece fol lowing contour shape, so the high-accuracy machining of complex contour can be achieved. The machining simulation function provided by UG/CAM can be used to simulate machining process, check tool paths and collision interference in order to get proper paths. Combing actual CNC system, the powerful post processing function can be used to produce correct NC program. The CAM idea and approach using UG/CAM fixed-contour milling was presented by utilizing a sample part with two-parameter cubic B-spline curved surface. The test result indicates that adopting UG fixed-contour milling, the 3-axis CNC machine can be used to accomplish semi-finishing machining and finishing machining of sophisticated contour. The machining cost is reduced effectively and high-value of practical application can be obtained.

关 键 词：UG/CAM 固定轴曲面轮廓铣 B样条曲面 

分 类 号：TH164[机械工程—机械制造及自动化]