Auto dravcnc processing data inquiry system

The final product is often organized in the way of assembly in process of mechanical design. The assembly body generally contains many parts, which structure is affected by several main parameters, and some parameters among those parts should in keeping with each other. The paper presents a method to do it by the UG OPEN API redevelop interface. By providing parameters extraction dialog, the main parameters of the UG assembly model are extracted from model. Then the parameters can be changed in PDM. Through the traverse the way for the assembly and all parts of the body automatic update drive, avoiding one of the documents by change travel, leakage change, and wrong which result into products design problem. After synchronous update, each drawing is outputted in the way of CGM file.