Dynamic identification and de-characterization repair method for design defects of cam curve groove mechanism

The invention discloses a dynamic identification method for design defects of a cam curve groove mechanism. The method comprises the following steps: establishing a mapping model between output motion precision and design parameters of the cam curve groove mechanism; extracting the design parameters and analyzing and sorting the sensitivity of the design parameters to the output motion precision of the cam curve groove mechanism; according to the design parameters of the cam curve groove mechanism, obtaining the expected output motion precision of the cam curve groove mechanism through a mapping model between the output motion precision of the cam curve groove mechanism and the design parameters, and defining a norm of a vector difference between an expected output motion precision vector and an allowable motion precision design index vector of the cam curve groove mechanism as a precision design defect discrimination index. The invention further discloses a de-characterization repair method for the design de