According to the communication principle of 840D numerical control (NC) system and internal data structure, the PLC program is developed to make 840D system state data transmit to the PC with the MPI channels; production status data real-time monitoring system based on 840D NC machine tools is developed, meanwhile, the monitoring and data management for NC machine tool production process status is realized.

Based on CREO Parametric 2.0, programmed by Pro/TOOLKIT and used Visual Studio as a developing platform, the virtually loaded path-planning module targets the dismantlement of tooling spring pin as an investigated object, thus enhancing the efficiency of virtual device significantly.