【摘要】 以纸盒折边机折纸段凸轮连杆机构为例，首先，根据实际工况对凸轮进行初步设计；然后，结合凸轮许用压力角设计凸轮机构的解析法，以摆杆转角和凸轮与摆杆间中心距为设计变量建立数学模型。利用NSGA-Ⅱ优化算法，对凸轮连杆机构进行多目标优化设计，并从生成的Pareto解集中选取最优解。根据优化结果对初步设计的凸轮连杆组合机构进行了调整，并采用Matlab软件编程获得凸轮的轮廓线，验证了优化后的凸轮压力角符合许用压力角。最后，利用Adams软件对优化后的凸轮连杆机构进行仿真分析。结果表明，铲刀运动的位移、速度和加速度符合设计要求，验证了优化结果的正确性和可行性，也为其他凸轮连杆机构的优化设计提供了可借鉴的方法。更多还原

【Abstract】 This article took the folding section cam linkage mechanism of a carton folding machine as an example. Firstly, a preliminary design of the cam was carried out based on actual working conditions. Then, combined with the analytical method designing the cam mechanism based on the allowable pressure angle of the cam, a mathematical model was established with the swing rod angle and the center distance between the cam and the swing rod as design variables. Using the NSGA-Ⅱ optimization algorithm, perform multi-objective optimization design on the cam linkage mechanism and select the optimal solution from the generated Pareto solution set. Based on the optimization results, the preliminary design of the cam linkage combination mechanism was adjusted, and the contour of the cam was obtained through Matlab programming, verifying that the optimized cam pressure angle met the allowable pressure angle. Finally, simulation analysis was conducted on the optimized cam linkage mechanism using Adams software. It is found that the displacement, velocity, and acceleration of the blade movement meet the design requirements, verifying the correctness and feasibility of the optimization results. At the same time, it also provides a reference method for the optimization design of other cam linkage mechanisms.更多还原