The Measuring Method of Obtaining Dynamic Geometric Parameters of Precision Moving Parts

With the continuous development of aerospace technology, the structure of the new generation of the space remote sensor is more and more sophisticated, and the requirements of its mobility and safety reliability are also higher and higher. When choosing some precision moving parts, it is necessary to master and verify the performance of the product. Therefore, this paper provides a technical scheme for obtaining the running trajectory of high-precision moving parts and verifying their running accuracy. Includes how to use coordinate measuring machine(CMM) to transform the dynamic trajectory into static data, while ensuring the consistency of the measured data. The full-stroke runout trajectory of the moving parts was obtained by fitting the curve and evaluating the coplanarity. The practice results show that this method can provide accurate reference data for designers and guide the matching of precision moving units and the assembly of precision components.