对3类具体的多自由度机械机构进行了分析,并重点分析了开环多自由度机构。根据具体结构建立了物理模型,对物理模型进行分析建立了数学模型。应用Pro/E软件进行了仿真。这为多自由度机械机构合理设计提供了方法和依据。从而可达到降低生产成本、缩短研制周期、提高质量等目的。 Three types of specific multi-degree-of-freedom mechanical mechanisms are analyzed, and the open-loop multi-degree-of-freedom mechanism is emphatically analyzed. According to the specific structure of the physical model established, the physical model was analyzed to establish a mathematical model. Application Pro / E software was simulated. This provides a method and basis for the rational design of a multi-DOF mechanical mechanism. Which can be achieved to reduce production costs, shorten the development cycle, improve the quality of other purposes.