CMM Probe Compensation Methods for Measuring Complex Screw Surface
At present,probe compensation is the key problem in measuring geometric parameters of complex screw surface with CMM due to its complicated 3D shape,aiming at this problem,some new measurement methods are proposed based on geometric feature models,expressing the screw surface and its offset surface separately.Supposing the parameter lead of a screw surface is known,it’s realized by scanning one single profile to complete probe compensation and calculate out all parameters,and the probe compensation is done by two improved methods,named as modified cross product and offset surface virtual measurement respectively,the theory and detailed process of which are discussed in this paper.After performing systematic experiments of profile scan,probe compensation and error evaluation,results show that the new measurement methods provide higher precision,stability and realizability.
screw surface coordinate measuring offset surface probe compensation
Zhao Qiancheng Yang Tianlong Yin Xiyun
Hunan University of Science and Technology, Xiangtan, Hunan, China 411201
国际会议
2012第八届精密工程测量和仪器仪表国际研讨会(ISPEMI2012)
成都
英文
1-6
2012-08-08（万方平台首次上网日期，不代表论文的发表时间）