摘要
在分析五轴端铣加工特点的基础上,运用机构学理论将五轴机床通用模型和端铣刀具模型相结合,建立一个五轴端铣加工的通用运动学模型。利用齐次坐标变换矩阵和反向运动学分析得到适合各种机床和刀具类型的五轴端铣加工运动学表达式。最后基于该模型,使用C++和QT开发出了一个通用的五轴端铣加工后置处理程序,以数个的端铣加工组合为例,配合VERICUT软件验证了模型和所开发的后置处理的可行性和高效性。
The generalized kinematics model of five-axis end milling is founded by using the mechanism theory on the analysis of five-axis end milling processing. The generalized kinematics model is constructed by combining the generalized five-axis machine tool model and the simplified APT geometric tool model for end milling. The complete analytical equations for NC data for five-axis end milling are obtained through homogeneous coordinate transformation matrix and inverse kinematics. The derived NC code expression is a general form suitable for all kinds of five-axis machine tools with different end mill types. Finally, a postprocessor system written by C ＋＋ ＆ QT software was developed according to the presented model. The NC simulation soft- ware VERICUT is used to verify the feasibility of thedeveloped postprocessor in the paper with various different combinations of the end milling processing, the effectiveness and feasibility of the proposed methodology is demonstrated.
出处
《组合机床与自动化加工技术》
北大核心
2010年第7期29-34,共6页
Modular Machine Tool & Automatic Manufacturing Technique
关键词
五轴加工
端铣
数值控制
数控编程
后置处理
five-axis machining
end milling
numerical control
NC programming
postprocessor
