Study On Design And Processing Technology Of Spherical Combined Self-rotation And Co-rotation Movement Polishing Tool

With the development of modern space optics,ultra precision,large aperture,and complex faced type optical components are widely used in optical system.Computer controlled optical surface forming technology,Stressed Lap Polishing,Bonnet Polishing,Magnetorheological Finishing,ion beam Finishing,etc.have become important methods of modern optical processing.In order to obtain ultra precision optical components,cutting,Milling grinding and polishing are usually performed in multiple steps.The processing technology is complicated and the processing efficiency is low.The computer control gadget grinding and polishing technology has a place in the current grinding and polishing of optical processing.and its pressure is one of the important state parameters in the grinding and polishing process.The variation of the polishing pressure has a great effect on the work-piece shape accuracy and surface accuracy.Great influence.At present,there is no mature control technology for pressure control.In order to meet the rapid increase in the demand for optical components,it is imperative to improve the processing efficiency while ensuring the accuracy of the same surface.The spherical male rotation polishing technology can greatly improve the material removal efficiency during processing,but this technology is still in its infancy in terms of theory,structure,and processing technology.For this purpose,this paper has studied the theory of the removal function of the spherical male rotation polishing technology,designed a spherical male rotation polishing tool with a simple structure,high response,and high precision pressure system.At the same time,it carried out the polishing process test,and put the Spherical Combined Self-rotation and Co-rotation movement polishing technology into engineering.Use laid the foundation.The main research work of this paper is as follows:(1)Based on kinematics and Preston equations,a removal function model of a Spherical Combined Self-rotation and Co-rotation movement polishing tool is established,and the theoretical removal function under different conditions is simulated to determine the range of revolution of the Spherical Combined Self-rotation and Co-rotation movement polishing tool.In-depth analysis of the stability and efficiency of the removal function.(2)Starting from the performance requirements of the complex surface polishingtool,a spherical male rotation polishing tool mechanical structure with simple structure,high response and high precision pressure system meeting the performance requirements is designed.And using ANSYS for static and dynamic analysis.(3)A voice coil motor control mathematical model is established based on the principle of electrical and automatic control and the transfer function relationship is given.Design and build a voice coil motor pressure control experiment platform to verify the high frequency characteristics and stable pressure output of the voice coil motor.(4)Set up a Spherical Combined Self-rotation and Co-rotation movement polishing tool test prototype,perform processing technology experiment on the specimen,study the stability of the removal function and removal function of the prototype,and influence the polishing parameters,polishing pressure and polishing speed,on the material removal results.Finally,a full-caliber carbon fiber material was processed using this prototype,which has a parabolic melon flap work-piece to verify the effectiveness of the prototype in the field of optical processing.