摘要
运用多体系统理论,以NAS979圆锥台试件作为检测试件,针对一种立式五轴加工中心,分析了33项几何误差,并建立了几何误差模型。将仿真结果与三坐标机测量结果进行对比,验证了几何误差模型具有比较理想的预测性能。根据实际情况简化了误差模型,并提出了几何误差补偿策略,为加工中心的几何误差补偿研究提供了理论基础。
According to the topology of a five-axis vertical machining center,a geometric error model is established by the theory of multi-body system based on the NAS979 circular truncated cone test piece.The results obtained by simulation are compared with the results obtained by the coordinate measuring machine.It has proved the validity of the prediction performance of the geometric error model.The geometric error model is simplified according to the actual situation,and the geometric error compensation strategy of machining center is put forward.The establishment of the model and the proposition of the error compensation strategy provide theoretical basis for the research of error compensation.
出处
《制造技术与机床》
北大核心
2014年第10期55-59,共5页
Manufacturing Technology & Machine Tool
基金
国家科技重大专项:五轴联动数控机床精度测评技术与标准(2014ZX04014-031)
关键词
立式五轴加工中心
几何误差建模
检测试件
误差补偿
five-axis vertical machining center
geometric errors model
test piece
error compensation
