Development of an NC machining simulator. System configuration.

This paper presents a new method to construct a solid model based machining verification system, which includes (1) system configuration technique with three subsystems and removed volume storing for the selective visualization of machining scenes ; (2) dimensional measuring task simulation using measuring instrument models for the quantitative evaluation of machined shape. With this method, firstly the user can detect the dimensional errors on the final machined shape, and then check selectively the machining steps which yield the errors. As the result, the time consumed for step-by-step verification of NC data is reduced. Besides, the accuracy of the error detection is increased.