Study On Simulation Of Electrical Discharge Machining Machine Tool Based On Virtual Manufacturing Technology

As a new technology of product design,VM (Virtual Manufacturing) is a revolution to traditional method of products design. Based on virtual manufacturing,engineers can find underlying problems just during products design by simulating the mechanical system,and revise them quickly so as to throw off the physical prototype,which not only can save the cost of design and manufacturing and reduce the cycle of products development , but also can elevate products'performance and enhance products'competition.The paper applied virtual prototype technology to the design of EDM (Electrical Discharge Machining) machine tool. It studies the integrating methods and technology among the characteristic modeling,kinematics analysis and finite element analysis system, software PRO/E (Pro/Engineer-3D solids modeling software) was used to draw the 3-D model of machine tool parts which can assembled to be a virtual machine, interference checking was taken between the parts after assembling finished and the VP (Virtual Prototype) of machine tool was successfully constructed in the end, which is the foundation of motion simulation and dynamic analysis using ADAMS (Automatic Dynamic Analysis of Mechanical Systems)software. Some features that hardly affect the simulation accuracy such as installation holes, screws were overleaped or simplified when modeling in PRO/E, constraint and loading which can achieve motion function were applied in ADAMS in order to decrease the time consumed by modeling and calculation and also keep the simulation from failure.Using the advanced and powerful FEA (Finite Element Analysis) software ANSYS to do the modal analysis on the main structure of machine, then gets the intrinsic frequency and the vibration model in order to achieve improvement and optimum design. Gained optimum design to the feeding system by analysis the main factors effect the problems of crawling based on the dynamics analysis software of machine system ADAMS. Through adopting the technological analysis of ADAMS, analyze the numeric machine tool of CTS400 action force between every main attachment under various operating conditions, so offer the border condition for the finite element analysis; though the finite element analysis about the assembly structure intensity on the numeric machine tool, receive high stress and dangerous area that meet an emergency. Then optimize the structure to this area, and the result indicates that the working condition is improved obviously on this component, thereby guarantee the running reliability of the whole machine.