为缩短产品开发周期，减少试模次数，以丙烯腈-丁二烯-苯乙烯三元共聚物（ABS）材料的无人机（UAV）相机镜头盖为研究对象，基于Moldflow软件对其整个注塑过程进行模流分析，通过镜头盖的填充时间、流动前沿温度、熔接痕及气穴4个方面确定其最优浇口位置，通过冷却液温差和回路管壁温差确定优化冷却系统的可行性；通过质量、最大剪切速率、最大剪切应力3个成型窗口分析得到塑件的最优成型参数；最后通过翘曲变形分析完成参数的验证。基于仿真结果和产品的生产要求，选择符合成型要求的注塑机，并通过对锁模力、最大注射容量及注射压力的校核，证明选择的注塑机完全符合设计要求。最终依据模流分析的结果，设计一套一模两腔的三板模侧抽芯结构注塑模具。结果表明：通过Moldflow软件分析可以有效提高无人机相机镜头盖的设计效率与质量，缩短产品的生产周期，对类似产品的模具设计具有指导作用。

In order to shorten the product development cycle and reduce the number of mold trials, the UAV camera lens cover of acrylonitrile-butadiene-styrene terpolymer (ABS) material was taken as the research object, and the mold flow analysis of the whole injection molding process was carried out based on Moldflow software. The optimal gate position was determined by the filling time of the lens cover, the temperature of the flow front, the weld mark and the cavitation. The feasibility of optimizing the cooling system was determined by the temperature difference of the coolant and the temperature difference of the loop pipe wall. The optimal molding parameters of the plastic parts were obtained by analyzing the three forming windows of mass, maximum shear rate and maximum shear stress. Finally, the parameters were verified by warpage deformation analysis. Based on the simulation results and the production requirements of the plastic parts, the injection molding machine that met the molding requirements was selected. Through the check of the clamping force, the maximum injection capacity and the injection pressure, it was proved that the selected injection molding machine fully meets the design requirements. Finally, based on the results of mold flow analysis, a set of three-plate mold side core-pulling structure injection mold with one mold and two cavities was designed. The results show that Moldflow software analysis can effectively improve the design efficiency and quality of UAV camera lens cover, shorten the production cycle of the product, and guide the mold design of similar products.