Innovative accuracy design of in-site precise automatic inspecting machine of valve sleeve bore of aeronautical precision coupling

[摘要] The diameter accuracy and geometric accuracy of the valve sleeve bore of aeronautical precision coupling are both high. It is necessary to inspect the bore diameter and cylindricity error frequently in machining, but there is a lack of in-site high accuracy and low cost automatic inspection methods currently. The scheme and accuracy design of a precise automatic inspecting machine (PAIM) of valve sleeve bore is carried out. Accuracy design of PAIM by traditional error distribution method fails to meet the requirement of measurement accuracy. Based on the idea of error avoidance and TRIZ technology system evolution theory, an innovative accuracy design method by using automatic dynamic disconnected measuring chain is proposed and realized. Accuracy analysis and experiment prove the correctness and validity of the proposed method.

[发布机构] School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an; 710072, China^1

[效力级别] 机械制造

[关键词] Accuracy analysis;Accuracy designs;Automatic inspection;Cylindricity error;Error distributions;Geometric accuracy;Measurement accuracy;Technology system