Development And Research Of NdFeB Magnetic Ring Automatic Handling Systems

In recent years, NdFeB magnetic material was widely used in scientific research and various aspects of the production by virtue of low price and high comprehensive magnetic performance. Its prospect was bright. However, with a low degree of automation, most domestic producers of NdFeB magnetic materials depended on manpower so heavy, especially there was no sophisticated automatic handing systems on the transport process of NdFeB powder compacts. A new NdFeB magnetic ring automatic handing system was proposed in this paper so as to solve the problem-low degree of automation and high production costs. Its main content was as follows.(1) The development of NdFeB magnetic materials, labor and rising trend of labor costs, application of FEM in modern design, development of automation and PLC control were described in this paper. Meanwhile, the account of the background, significance of this research, and the research status of automatic handling system were also summarized.(2) The overall design of NdFeB automatic handing system was completed. According to the basic design criteria, the overall structural design of NdFeB automatic handling systems (including horizontal and vertical racks, air cylinder mounting rack, support tray) were completed by using CATIA. a transfer program of NdFeB magnetic powder compacts was formulated, the process action of automatic handling systems was decomposed, The working cycle of automatic handling systems were analyzed.(3) The energy flow design of the automatic handling system was completed. The energy flow configuration of automatic handling system was analyzed. The service load of automatic handling system was computed. And the lectotype computation of horizontal servo actuator, vertical servo actuator and air compressing engine was completed.(4) The optimization of transmission mechanism lectotype was completed. A new Self-Judge genetic algorithm based on relative fitness was proposed.By improving the crossover and mutation, it had better local search ability and its result was more stable. Target to minimum center distance, the optimization model of timing belt pullet was built. Target to minmum moment of inertia of the two two ball screws, maximum number of NdFeB workpieces and minmum lead of ball screw, a Multi-objective optimization was built. The optimization model solution by using Self-Judge genetic algorithm was completed.(5) The performance analysis of automatic handing system was completed. By using CATIA, Hypermesh and ANSYS Workbench, the strength, modal and harmonic response of main support parts of automatic handling systems including horizontal and vertical rack were analyzed.(6) The information flow and control design of automatic handling system were completed. The working cycle of automatic handling systems were analyzed. The PLC model was selected. I/O interface was assigned. The pneumatic circuit was designed and analyzed. The control system and wiring diagrams of automatic handling systems were completed.