College of Mechanical Engineering, Zhejiang University of Technology
In order to solve the problems of low efficiency and poor accuracy of manual peeling of cable, the theoretical model and simulation analysis of cable turning and peeling process are carried out through material mechanics analysis and finite element method, and the deformation law in the process of cable turning and peeling is studied, which provides a theoretical basis for an intermediate peeling method of mechanical turning and verifies its feasibility. The cable structure characteristics are analyzed and the cable geometric model is established. The mechanical model of cable is established and the parameters are solved by using the theoretical analysis and homogenization method of composite mechanics. The mechanical model of intermediate peeling machining affecting the peeling quality is established, the mechanical characteristics of cable bending and torsional deformation affecting the peeling quality are studied, and the significance of cable diameter, length and cutting position are analyzed. The cutting characteristics, tool geometric parameters and material selection of XLPE for cable insulation sheath are analyzed. The modified J-C constitutive model of XLPE is solved. The thermal mechanical coupling cutting numerical simulation is carried out by ABAQUS. The effects of cutting speed, cutting depth and tool angle on cutting force, cutting temperature and chip shape are studied. The results show that the cable diameter has a great influence on the bending and torsional deformation of the cable, and the larger the cable diameter, the smaller the deformation. Length and cutting position have great influence on cable bending deformation, but have no obvious influence on torsional deformation. The finite element simulation results of cable XLPE sheath cutting is clear and intuitive, and the cutting speed, cutting depth and tool rake angle have obvious effects on XLPE sheath cutting shape and cutting temperature.
徐永明,李飞伟,张冲标,等. 电缆车削剥皮过程理论分析与仿真模拟[J]. 科学技术与工程, , ():复制