Study On Virtual Prototyping For Adjusting Framework Of Multi-Point Forming Equipment

With the modern highly development of manufacture industry, Therequirement of metals plank increase quickly, especially car , aviation aerospaceand steamship etc. The plank pieces have much proportionment in the wholemachine. These plank pieces was shaped by die.It needs one or a large number ofdies for forming.It consumes a great deal of manpower, material resources andtimes to design, manufacturing and adjusting dies.It grows more and moredistinctness of much varieties and small batch with the renewal changes thegeneration of new products. The method of traditional die can't satisfy the demandof the development.Multi—Points Forming Technology is a advanced manufacturing whichcombine flexible manufacture technology and computer technology.It comes truedifferent three-dimension surface forming.Multi — Points Forming equipment is carrier to carry out Multi—PointsForming Technology.It is a hingh science and technology content equipment. If wesimulation and ansys the equipment by Virtual Prototyping technology andsimulation software before manufacture real equipment we can discover viceadvanced, then we amend design project until obtain reasonable project. It ensurethe veracity of theory.Virtual Prototyping is a new technology which combine part design andanalysis technology, create whole model in computer, analyse all sorts of instances,forecast whole capability of the product, and amelioration design, raise the productfunction. Virtual Prototyping Technology gets more and more import with thedevelopment of computer.The reseach range of Virtual Prototyping Technology is kinematics anddynamics. It analyse and confirm position, velocity, acceleration of parts bycomputer analysis technology. At the same time confirm the effect force and effectforce by solving the square distance set of algebraThis text simulate the Multi-Point Forming Equipment on Adjusting Form bythe ADAMS software and much rigid bodys system dynamics. It gathers up for nextexample:1) The content of Multi-points Forming Technology.The ages background, characteristic, development and correlative equipmentof Multi-points Forming Technology are be introduced in this text.2) The basic theory reseached of Virtual Prototyping Technology.In this text we will introduce the basic theory of much rigid bodys systemdynamics of much system dynamics, Introduce the established of reference work,the freedom degree of machine ,and the problem that should notice when computefreedom degree of machine. The established of reference frame, the computemethod of kinetic energy and momentum about system. Establish kinetic equationof system by Lagrange multiply gene, explain process of system kinetic equations,the theory foundation of forecast and emendation.3) establish the Virtual Prototyping model and validating, choose alternatingcurrent servo electromotor.Combine Virtual Prototyping Technology and redigest the model of Multi-Points Forming equipment on adjusted shell framework. Create Three-dimensionmodel in coputer by the software of UG(Unigraphics). Simulate the model byADAMS software.4)Research the influence to Virtual Prototyping model of correlative parameterscombine output curves.Simulate the movement position of manipulator with different pitch. Gainedbetter pitch value.At the same time, simulate the whole Virtual Prototyping modelperformance.Through the output curve we know that the friction torque between srew staffand bearing and friction between manipulator bearing and guide are more and more minishwhen the speed of servo electromotor minished.In practicality manufacture the speed ofservo electromotor should be high. In this case, It not only avoid higher frictions butalso shorten the time of adjusting and enhance manufacture efficiency.5)Optimize for adjusting framework of Multi-Point Forming equipment.Based on multi system dynamics combine virtual prototyping and simulationsoftware,Optimization for adjusting framework of Multi-Point Forming equipment. Analyseinfluence for virtual prototyping capability when diameter changed of srew staff. Byoptimization enhance the intensity of ball bearing screw and sensitivity,be propitious tothe stabilization of system,and prolong the life of system..