【摘要】 为解决农业机械产品外观设计中存在的设计效率低、制造脱节及验证滞后等问题，构建以聚焦瓶颈-快速迭代-嵌入制造-验证闭环(focus-improve-embed-verify, FIEV)为核心的精益设计流程模型。模型以阶段性任务驱动方式统筹设计全流程，系统聚焦设计瓶颈、提升模型迭代效率及嵌入制造可行性并闭环验证输出质量；整合约束理论-精益生产-六西格玛(theory of constraints-lean production-six sigma, TLS)与面向制造的设计(design for manufacturing, DFM)并提出TLS-DFM实施路径，明确各阶段所匹配的流程改进与质量控制工具。结果表明：评估周期由20 d缩短至12 d,整体开发周期较传统缩短23%,模型一次性通过率由48%提升至76%。该方法可提升设计方案的制造匹配度与参数稳定性，降低试错成本与开发周期，适用于中小批量、定制化农机产品的外观设计流程改进，具备良好的工程应用前景。更多还原

【Abstract】 To solve low design efficiency, manufacturing disconnect and delayed validation in agricultural machinery appearance design, a lean process model centered on focus-improve-embed-verify(FIEV)was developed. Driven by phase-specific tasks, the model systematically focused on design bottlenecks, accelerated prototype iteration, embedded manufacturing feasibility and verified closed loop on output quality. The theory of constraints-lean production-six sigma(TLS)and design for manufacturing(DFM)were integrated to propose a TLS-DFM implementation pathway. The process-improvement and quality-control tools were specified to match to each phase. The results show that evaluation cycle was reduced from 20 d to 12 d. The overall development time decreased by 23%,and first-pass prototype approval rates rose from 48% to 76%. The proposed method enhanced manufacturing compatibility and parameter stability of design schemes, reduced trial-and-error costs and shortened development cycles. This model is applicable to small-to-medium batch and customized agricultural machinery, demonstrating strong potential for engineering deployment.更多还原