中文摘要：

以多体系统理论为基础建立了包含旋转轴几何误差的DMP60U型机床运动模型,并利用某公司的QC10球杆仪对DMP60U型的C轴和斜转轴B轴各4项位置误差分别进行测量和辨识.在对球杆仪测量点的在坐标系中的位置坐标表达分析后,得出了球杆仪测量圆的偏心率与位置误差间数学关系.通过运用机床RTCP功能控制多轴同步运动,设计进行不同高度下的4次测量,可辨识出这8项位置误差,快速高效.经实验验证,这种辨识方法测量结果精确,可用于五轴加工中心误差辨识.

英文摘要：

Based on the theory of multi-body system, the kinematic error model for the machine tool is established, involving position-independent geometric deviations and position-dependent geometric deviations. And with the QCIO ball-bar produced by Renishaw company, the eight position-independent geometric deviations are measured and identifted, associated to rotary of C-axis and inclined rotary of B-axis. After analyzing the express of two measurement points in the coordiriate system, the mathematical relationship is established between the position-independent geometric deviations and the eccentricity of the measuring circle. Then, based on the function RTCP achieving four kinds of multi-axis synchronous movement with different height, the eight position-independent geometric deviations can be identified fast and efficiently. It has been confirmed that the proposed method provides precision results and is able to apply to the measurement of 5-axis machining center.