【摘要】 为提高悬臂式三坐标测量机的测量精度,对其各项误差源进行了分析,使用齐次坐标变换理论建立了测量机的准刚体测量模型,并在其基础上建立了几何误差模型对影响测量机精度较大的21项几何误差进行补偿。以在不提高制造成本的情况下,提高测量机的整体精度。该数学模型为悬臂式三坐标测量机的误差补偿技术提供了理论依据。更多还原

【Abstract】 In order to enhance the measurement precision of the cantilever type CMM,this paper introduces the quasi-rigid body mathematical model developed by analyzing every errors sources and depending on the theory of homogeneous coordinate and offers geometric errors model specially designed to compensate for the 21 geometric errors with a greater impact on measuring accuracy.The improvement in the overall precision of the CMM goes without increasing manufacturing costs.This mathematical model provides a theoretical basis for the error compensation technique of cantilever type CMM.更多还原