Research On Surface Polishing Trajectory Controlled By SIMOTION

With the rapid development of the manufacturing industry,the product structure can be optimized by using freeform surfaces,which can greatly improve product performance,reduce manufacturing complexity,reduce weight,and reduce product size.Therefore,it is widely used in the industrial applications.However,due to the complexity of geometry shape,free surfaces are faced with more challenges and difficulties in precision manufacturing.Polishing is usually one of the final processing steps in the precision manufacturing,its result influences the appearance and life-span directly.Therefore,the surface quality plays an important role in target function.In order to meet the surface quality requirements of free-form surfaces,more and more people are applying small grinding heads to the polishing.Since the polishing path of a small polishing tool has a great influence on the surface removal area,it is necessary to study the free surface polishing path to obtain a good polishing efficiency and surface quality.In addition,high-precision machining can obtain extremely high surface quality and integrity must come at the expense of processing efficiency.Therefore,exploring a processing method that can take into account both efficiency and precision has become a goal for researchers in the industry.Because the elastic abrasive tool is produced by the small abrasive particles on the surface of the abrasive tool,the residual surface of the workpiece surface is squeezed,and it can make close contact with the surface of the workpiece,which can effectively reduce the surface damage of the cemented carbide and improve the material removal rate.In view of this situation,this paper applies the small-sized elastic abrasives to the polishing process and facilitate engineers control high-precision polishing machines by simple numerical input.The project is based on the control scheme of ‘PC+ Motion Controller'.By combining Preston material removal formula,a material removal area model for the polishing tool under constant polishing force and pressure control was established,taking a secondary aspherical surface as example,aiming at the surface shape of the desired polished workpiece,and the commonly used grating trajectories were simulated and analyzed,and the material was used to remove the coverage area.An optimal path generation algorithm for elliptical surfaces based on grating polishing paths was established.Finally,the algorithm is applied in SIMOTION.The SIMOTION C240 is used as the control center.The Win CC software is used to communicate with the host computer and the related man-machine interface is developed.The Siemens Scout software is used to compile the motion control program and the related algorithm trajectory is implemented.sport control.Compared to the CNC system with full software control,the motion control system with SIMOTION as the core runs stably.The standard control module greatly reduces the programming time,greatly improves work efficiency and reduces equipment costs.After system installation and adjustment,this paper make related experimental verification to the synchronous control precision of each motion axis and optimized elliptical surface polishing track.The results show that the control precision of the SIMOTION motion control system and it meets the engineering requirements and confirms the correctness of the algorithm.The surface effect of the workpiece is significantly by the trajectory optimization,and a curved surface workpiece with a mirror effect is obtained.