公开(公告)号：US20210048791A1

公开(公告)日：2021-02-18

申请号：US16753206

申请日：2019-08-19

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Jianwei MA ,  Zhenyuan JIA ,  Xiao LU ,  Wenwen JIANG ,  Xiaoxuan ZHAO ,  Wei LIU ,  Likun SI

IPC: G05B19/402

Abstract: A toolpath topology design method based on vector field in sub-regional processing for the curved surface is disclosed which comprising: finding the functional relationships in feeding direction between the chord error and the normal curvature and between the scallop-height error and the normal curvature; establishing the bi-objective optimization model and calculating the optimal feeding direction at each cutting contact point within the surface through the constructed evaluation function, the space vector field is built; calculating divergence and rotation of the projected vector field and according to whether them are zeros or not to classify different sub-regions, the primary surface segmentation is achieved, etc. The method is applied for the complex curved surface processing, which can reduce the machining error and enhance the feed motion stability.