Abstract: The virtual assembly is a technology that is widely applied in the digital manufacturing field. However, the production line assembly simulation is a new research direction of virtual assembly. This article focuses on the topics of the production processes in the chemical industry. It firstly analyzes and simplifies the geometries and functions of the chemical equipment. Then, it summarizes and designs the properties of assembly virtual device. On this basis, this paper proposes a method based on connector balls to store the assembly information of virtual devices and formulates a complete series of virtual assembly rules. The feasibility of the method has been confirmed by an experiment.
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