虚拟装配可帮助实现无法实施物理样机装配的大型部件的精确装配,可以有效地提高产品装配质量与速度,有助于降低产品建造成本,缩短产品建造周期。通过介绍大型起重机的建造技术和难点,侧重分析了虚拟装配的特征和关键,重点探讨了大型起重机的虚拟装配的实施方案和步骤,利用三维模型和精确测量技术实施虚拟装配,为提高大型起重机装配建造质量和效率提供支撑。 Virtual assembly can help achieve the precise assembly of large parts that can not be assembled in a physical prototype, which can effectively improve the quality and speed of product assembly, helping to reduce the cost of product construction and shorten the product construction cycle. By introducing the construction techniques and difficulties of large cranes, this paper focuses on the features and key points of the virtual assembly, and focuses on the implementation plan and steps of the virtual cranes assembly. The three-dimensional model and the accurate measurement technology are used to implement the virtual assembly. In order to improve the assembly of the large cranes Construction quality and efficiency to provide support.