摘要
加减速控制是数控系统开发的关键技术之一,多程序段连续加工是高速数控系统发展的方向和要求。通过对传统的直线加减速规划算法进行改进,并结合前瞻技术和滤波技术,提出了一种简单、光滑、平稳、高速、连续的新型的加减速控制方法。该方法可以实现多程序段连续加工,提高加工效率;而且,单程序段直线加减速规划方法中因存在加速度突变的现象而造成的机床振动问题也可得到有效缓解。文中给出了该方法的仿真实验,通过实验结果可以看出,针对高速加工的目标,该方法切实可行而且有效。
Acceleration and deceleration control is one of the key technologies in the development of CNC system. Continuous multi-line processing is the intending direction and request for the development of highspeed machining. In this paper, a new velocity profile with an improved linear acceleration/deceleration combined with filtering technology and look-ahead technology is proposed for the motion planning. It has machining attributes like being simple, smooth, steady, high-speed, and continuous. This method achieved the continuous interpolation motion control for multi-line machining. It enhances the working efficiency as well as smoothes the CNC machine tool vibration which is induced by an acceleration break during the traditional linear acceleration/deceleration period. This paper involves this method＇ s emulational experiment, and the its outcome shows that this method for high-speed machining is feasible and effective.
出处
《组合机床与自动化加工技术》
北大核心
2010年第7期35-39,共5页
Modular Machine Tool & Automatic Manufacturing Technique
基金
"高档数控机床与基础制造装备"科技重大专项(2009ZX04009-022)
