Research And Development On CAD/CAM Integrated System Of High-accuracy NC Tools

A deep theoretical study on the framework of high-accuracy NC tools CAD/CAM integrated system, the design and implement of CAPP, the design and implement of CAM subsystem and simulation of NC tools have been carried out in this dissertation. The main contents of the dissertation are as follows:1. Based on the full understanding of CAD/CAM technology, and considering the actual requirement of NC manufacturing system in Tianjin Tools Factory, the framework of CAD/CAM integrated system has been established.2. The information of the mode-based CAD/CAPP integrated technology is studied, the storage of CAD mode are realized.3. CAM subsystem is established. The three manners of transition from CAD characteristic information to NC procedures are carried out: the process flow of high-accuracy NC tools has been designed. The process of which CAPP is mapped, scheme and working procedure of CAPP ensured, and CAD mode characteristic is picked up, and CAPP repository fulfilled. The diversion from CAD characteristic information to NC procedures is achieved by characteristic machining mode.The conversion from CAD characteristic information to NC procedures is accomplished. NC machining procedures are completed ultimately.4. The dynamical simulation of NC machining process and the testing of NC procedures are accomplished by means of the Simvk0010 software in computer. The fast manufacture of tools can be achieved on basis of the satisfaction of the manufacture condition in NC process center.