摘要
当前五轴机床C轴工作台的转动行程已由某个限定范围扩展为无限范围(n×360°),但通常后置处理中的转角求解方法不能使求解范围扩展到无限,因而制约了机床性能的发挥。针对该问题,建立基于多体系统理论的五轴机床转动轴运动学方程,通过定义"最小运动圆周"来改进五轴机床转角的计算方法,对后置转角求解区域进行了扩展,并给出了具体的求解流程。该求解算法可以有效提高C轴工作台的转动连续性。最后在某结构类型的机床上进行了后置求解仿真试验,验证了算法的可行性和有效性。
The stroke of C-axis rotary worktable for five-axis machine tool could be extended from limited angle range to n×360°,however the performance of machine tools could be restricted due to the limited rotation angles solution of common post-processing calculation methods.Herein,a kinematics equation of rotation axes was established based on multi-body system theory firstly.And the calculation method of rotation angle was improved by defining＂the minimum movement circle＂.Moreover,the calculation flow was determined,by which the rotating continuity of C-axis worktable was improved effectively.Finally,the feasibility and effectiveness of the proposed method were verified by some simulation experiment,about the post-processing calculation method.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2014年第16期2178-2183,共6页
China Mechanical Engineering
基金
中央高校基本科研业务费专项资金资助项目(2682014CX035)
四川省科技计划资助项目(2012JY0092)
关键词
五轴机床
C轴工作台
无限旋转
后置处理
转角求解
five-axis machine tool
C-axis worktable
infinite rotating
post-processing
rotation angles solution
