基于数字孪生的刀具前处理机设计

Design of tool pre-processor based on digital twin

针对传统机电设备设计研制效率较低等问题,将数字孪生技术应用到刀具前处理机的研制开发过程中,运用NX、ANSYS、TIA等软件,进行了机械结构建模、静力学分析、流体力学仿真、电气控制系统设计。在完成运动副搭建、通讯环境建立、信号映射的基础上,进行了刀具前处理机MCD机电联调虚拟仿真,实现了虚拟样机机械动作、传感器信号与PLC控制程序间的交互,验证了设计的可行性;最后进行了样机系统的搭建与测试。研究结果表明:刀具前处理机样机可在1 min内有效清除4 kg以内的铣刀上残留的磨削液;基于数字孪生的设计方法降低了样机研制的返工率,提升了机电产品的研制效率。

Aiming at the problem of low efficiency in the design and development of traditional mechanical and electrical equipment,the digital twin technology was applied to the development of tool pre-processor.Using NX,ANSYS,TIA and other software,the mechanical structure modeling,static analysis,fluid dynamics simulation and electrical control system design were carried out in parallel.Based on the establishment of motion pair,communication environment and signal mapping,the MCD electromechanical simulation of tool pre-processor was carried out.The interaction between mechanical action of virtual prototype,sensor signal and PLC control program was realized,and the feasibility of the design was verified.The prototype system was built and tested.The results show that the grinding fluid on the milling cutter with in 4 kg can be removed effectively within 1 min of the prototype.The design method based on digital twin reduces the rework rate of prototype development,and improves the development efficiency of mechanical and electrical products.