The Design Of Polishing Process System Of Small Heterogeneous Parts

Currently, shaped surface parts are widely used in auto parts, hardwares and sanitary wares which are important to industry and everyday life. These products have high surface quality and complex shape. Therefore the polishing equipment is required to have high degree of flexibility and good process performance. However, studies of flexible polishing apparatus is still in its infancy in our country. The key factors in the polishing process are rational parameters selection and automatic control which has been the impact of complex automation of the polishing surface. In this paper, cloth wheel polishing machine for automatic process control system is designed to achieve the force don’t change in the process between the polishing cloth round and the work’s surface. Designing the polishing cloth round humidity control system. Researching the humidity’s effect on the polishing effect. Getting the optimum combination of polishing parameters corresponding common workpiece material from the experiments. On this basis, establishing a polishing process database system. The user can select the workpiece material for different polishing parameters to select the best value in the database.First, designing the mechanical structure and electrical systems for the small exclusive member automatic polishing machines according to the profiled surface parts polishing process requirements. Finishing the key components of each parts’ design and selection. Building a prototype automatic polishing machine for prototype integrated debugging. Establishing a hardware foundation for the design of the system to cloth round polishing process.Second, Establishing the model of the surface material removaling. According to the theoretical model to obtained the major factors of polishing. Analyzing the influence of environmental factors, ultimately determine the content of the main control process of the control system.Third, Solving the problem of maintain a constant force during the polishing process. Impedance-based policy positions, according to the difference between the actual and the ideal polishing force, obtaing with respect to the workpiece error polishing cloth round of the actual position and the desired position, thereby controlling the feeding mechanism of the position error compensation, achieve Constant polishing cloth round draw using prediction algorithms loss value of the current state, in order to achieve accurate error polishing force feedback.Construction of cloth round humidity PID control systems, measureming the control effect of humidity control system. Polishing humidity affect the quality of the workpiece surface, According to thepolishing test, optimuming process parameters corresponding to different workpiece material, establishing a data base for the development process of the database.Fourth, building the cloth round polishing process database system. Developmenting the software of searching for the process parameters and database management and software. Based on the user’s information of workpiece’s material and processing conditions, recommending the best process parameters to ensure the quality of the polishing process. At the same time it allows the system administrator to modify information in the database, add and delete maintenance operations.