五轴机床分类运动学建模及后置处理验证
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摘要
针对常见的三大类型正交结构的五轴机床,根据齐次坐标变换和运动链关系,推导建立了双转台型、摆头转台型、双摆头型五轴机床的运动学模型。根据矩阵方程的逆解,确定了A、C轴的旋转角度取值范围,基于UG-post开发了后置处理器,在UG环境中以凹球面为例,生成5轴铣削刀路,AC型五轴机床的实际加工验证了后置处理算法的正确性和有效性。
According to the homogeneous coordinate transformation and the kinematic chain relation,the kinematics model of the double table-tilting five-axis machine( TATC) is established,so as to the spindle-tilting machine( SCSA) and the hybrid-type machine( SATC) tool is deduced for the common orthogonal structure. According to the inverse matrix equation,the range of rotation angle of A and C axis is determined. Based on UG-post,a post-processor is developed for machining in this paper. Within UG environment,the 5-axis milling tool path and the actual machining of a concave spherical surface part on an AC five-axis machine verifies the correctness of the post-processing algorithm.
According to the homogeneous coordinate transformation and the kinematic chain relation,the kinematics model of the double table-tilting five-axis machine( TATC) is established,so as to the spindle-tilting machine( SCSA) and the hybrid-type machine( SATC) tool is deduced for the common orthogonal structure. According to the inverse matrix equation,the range of rotation angle of A and C axis is determined. Based on UG-post,a post-processor is developed for machining in this paper. Within UG environment,the 5-axis milling tool path and the actual machining of a concave spherical surface part on an AC five-axis machine verifies the correctness of the post-processing algorithm.
引文
[1]周济,周艳红.数控加工技术[M].北京:国防工业出版社,2002.
[2]何永红,齐乐华,赵宝林.双转台五轴数控机床后置处理算法研究[J].制造技术与机床,2006(1):9-12.
[3]周续,张定华,吴宝海,等.非正交双转台五轴机床后置处理通用方法[J].机械工程学报,2014(8):198-204.
[4]李永桥,陈强,谌永祥.五轴数控机床通用坐标运动变换及求解方法的研究[J].组合机床与自动化加工技术,2010(10):4-7.
[5]郑飂默,林浒,盖荣丽.基于通用运动模型的五轴机床后置处理[J].计算机集成制造系统,2010,16(5):1006-1011.
[6]何俊,赖玉活,唐清春,等.双转台五轴联动机床后置处理误差补偿算法的研究[J].组合机床与自动化加工技术,2011(9):24-27.
[7]李庄.五轴机床运动学通用建模理论研究及应用[D].成都:西南交通大学,2013.
[8]Alan C Lin,Tzu-Kuan Lin,Tsong Der Lin.Deriving generic transformation matrices for multi-axis milling machine[J].International Journal of Mechanical,Aerospace,Industrial,Mechatronic and Manufacturing Engineering,2014,8(7).
[9]李显双,樊留群,齐党进.五轴加工奇异问题及其处理方法[J].组合机床与自动化加工技术,2013,(6):37-39,43.
[10]江磊,李庄,李相标,等.无限旋转C轴工作台结构的五轴机床后置转角求解[J].中国机械工程,2014,25(16):2178-2183.
[2]何永红,齐乐华,赵宝林.双转台五轴数控机床后置处理算法研究[J].制造技术与机床,2006(1):9-12.
[3]周续,张定华,吴宝海,等.非正交双转台五轴机床后置处理通用方法[J].机械工程学报,2014(8):198-204.
[4]李永桥,陈强,谌永祥.五轴数控机床通用坐标运动变换及求解方法的研究[J].组合机床与自动化加工技术,2010(10):4-7.
[5]郑飂默,林浒,盖荣丽.基于通用运动模型的五轴机床后置处理[J].计算机集成制造系统,2010,16(5):1006-1011.
[6]何俊,赖玉活,唐清春,等.双转台五轴联动机床后置处理误差补偿算法的研究[J].组合机床与自动化加工技术,2011(9):24-27.
[7]李庄.五轴机床运动学通用建模理论研究及应用[D].成都:西南交通大学,2013.
[8]Alan C Lin,Tzu-Kuan Lin,Tsong Der Lin.Deriving generic transformation matrices for multi-axis milling machine[J].International Journal of Mechanical,Aerospace,Industrial,Mechatronic and Manufacturing Engineering,2014,8(7).
[9]李显双,樊留群,齐党进.五轴加工奇异问题及其处理方法[J].组合机床与自动化加工技术,2013,(6):37-39,43.
[10]江磊,李庄,李相标,等.无限旋转C轴工作台结构的五轴机床后置转角求解[J].中国机械工程,2014,25(16):2178-2183.