高速高精度数控加工中轨迹误差的抑制方法及其应用  

Path Error Restraining Method and Application for High Speed and High Precision CNC Machining

作　　者：钱逸秋[1] 秦曼华[2] 

机构地区：[1]天津中德职业技术学院,天津300191 [2]天津职业大学,天津300410

出　　处：《组合机床与自动化加工技术》2009年第12期41-44,共4页Modular Machine Tool & Automatic Manufacturing Technique

摘　　要：高速高精度是数控加工的发展趋势,但一般而言速度和精度又是一对矛盾。现代数控系统提供了丰富的、以高速高精度为目标的特殊功能。文章从轨迹误差入手,分析了高速高精度数控加工中伺服及加减速延迟对轨迹误差的影响,研究了基于FANUC伺服系统前馈及精细加减速控制技术的轨迹误差抑制功能,在对轨迹误差抑制效果进行验证和分析的基础上,针对不同加工条件和系统设置提出了具体的轨迹误差抑制方法,实现了高速高精度数控加工。While the development of CNC machining has increasingly demanded high speed and high precision, it is a known issue that there is a tradeoff between speed and precision. CNC systems today aim at meeting the new challenges and provide rich and unique functionality. This paper analyzes the impacts on the path errors due to the delay of servo and speed change in CNC machining at high speed and high precision, and researches the functionality of minimizing path error based on the feed forward and precise speed control technology in the FANUC servo system. Based on the verification and examination on the effects of restraining the path errors, the author proposes a method for minimizing the path errors according to different machining conditions and system settings, which has made the CNC machining at high speed and high orecision oossible.

关 键 词：高速高精度 数控加工 轨迹误差 前馈控制 精细加减速控制 

分 类 号：TH16[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]