Numerical Control Simulation Algorithm Based on Automation Language

Based on the analysis of the basis of the principle of CNC cutting, combined with graphics drawing software AUTOCAD drawing function, using the secondary development of CAD drawing language VBA functions extension, simulation of nc machining process, the dynamic 3d display simulation system of development, greatly improves the efficiency of nc machining process validation of the product, reduce defective products. This system in practice test has obtained good effect, have certain popularize value.