关键词: 线缆装配, 装配工艺模型, 数字孪生, 模型构建, 复杂机电产品

Abstract: Aiming at the problems that the current cable assembly process files formulated with ideal data could not meet the actual assembly needs well and the established assembly path had a certain deviation from the actual assembly path,a dynamic construction method of cable assembly process model of complex mechatronic products based on digital twin was proposed.The component features was mapped using simultaneous localization and mapping methods during cable assembly and cable spatial positioning,the random finite set was introduced to describe simultaneous localization and mapping problems,and the Gaussian mixture probability hypothesis density was used to realize map components prediction and update of feature information;at the same time,square root transformed unscented Kalman filter and single feature strategy were used to estimate the pose of the cable assembly path,thereby constructing a digital twin of the cable assembly path to realize the dynamic construction of the cable assembly process model.The proposed method was applied to the case analysis,and its feasibility was verified.

Key words: cable assembly, assembly process model, digital twin, model construction, complex mechatronic products