Development of a learning-training simulator with virtual functions for lathe operations

A learning-training simulator with virtual functions for lathe operations has been developed and tested. The hardware is constructed based on the feed driving system of an actual lathe. A sense of force produced by the built-in direct drive motors provides the operator with some real feeling as if he or she were operating an actual lathe. With multimedia techniques incorporated into the software, the simulator can display animated pictures to demonstrate the rotation of the work-piece and the translation of the cutter on the screen in real time. A computer-controlled speaker generates several types of working sound, mixing the sounds of the lathe spindle rotation and cutting corresponding to the operation status in the progress. Other useful functions, such as warning of a dangerous operation and a demonstration of basic principles of metal cutting, have also been developed within the simulator to increase learning and training efficiency. Most teachers working in industrial high schools and students at Joetsu University of Education who actually operated the simulator gave a good evaluation of the learning effects of the simulator.