一种研抛力控制的复杂曲面高效研抛加工新方法研究  

Research on a New Method of High Efficiency Grinding and Polishing of Complex Surface Based on Force Control

作　　者：孙宝玉[1] 王宁[1] 夏椰林 田洪东[1] 谷东伟[1] SUN Baoyu;WANG Ning;XIA Yelin;TIAN Hongdong;GU Dongwei(Mechanical and Electrical Engineering College,Changchun University of Technology,Changchun Jilin 130012,China)

机构地区：[1]长春工业大学机电工程学院,吉林长春130012

出　　处：《机床与液压》2018年第9期110-113,共4页Machine Tool & Hydraulics

基　　金：吉林省科技厅重点科技攻关项目(20140204061GX)

摘　　要：传统的曲面研抛加工方法通常是在恒定研抛力、指定研抛路径下的研抛,或是通过调节压力实现研抛点等压力研抛,目的都只是加工余量的恒定去除,并通过对工件进行面型检测且多次循环研抛加工才能达到理想曲面的效果,效率较低。为了解决传统的复杂曲面研抛加工效率低的问题,基于Preston理论提出一种研抛力控制下的复杂曲面研抛加工新方法,以五轴超精密研抛机床为实验平台,在研抛力控制下实现仿人研抛操作,实现在去除研抛加工余量的同时消除曲面面型误差。采用该方法对K9玻璃进行研抛,研抛后表面粗糙度Ra值的范围稳定在0.011~0.024μm之间,较传统恒力研抛加工效率明显提高,说明了该方法对复杂曲面研抛加工的有效性。The traditional method of complex surface machining is usually machined under the constant polishing force and constant polishing path,or through the adjustment of pressure to achieve equal pressure at the time of processing,the purpose of all is just to achieve a constant amount of material removal. Moreover,the ideal complex surface is only achieved through the detection and multiple cycle of polishing processing,and the machining efficiency is a little low. Based on the Preston theory,a new method is presented for machining complex surface that is grinding and polishing force control technology in order to solve the problem of low machining efficiency. Based on five axis ultra precision grinding and polishing machine tool as the experimental platform,the workpiece could be machined like manual processing under this technology,and was achieved in the removal of polishing allowance while eliminating the errors of the curved surface shape. In the experiment,the workpiece of K9 glass was machined using this method,its range of surface roughness Ra value changes stably between 0. 011 ~ 0. 024 μm after polishing. Processing efficiency is improved significantly compared with the traditional method of the constant force,which shows the effectiveness of the new method.

关 键 词：五轴 精密加工 研抛 仿人 复杂曲面 力控制 

分 类 号：TG580.68[金属学及工艺—金属切削加工及机床]