大型钛合金复合板材恒压砂带磨削关键技术研究

摘要

文章针对大型钛合金复合板材砂带磨削过程中出现的问题,提出了自适应模糊-PID复合控制方案,有效地解决了钛合金复合板材砂带磨削加工过程中存在的磨削不均匀问题.通过恒压力接触被磨工件,使磨头磨具能有效地跟随板材型面起伏变化,不仅保证了磨削深度尺寸而且改善了板材的表面加工质量.在对被控对象进行仿真的基础上,进行了磨削试验研究,结果表明:采用自适应模糊-PID复合控制方案对钛合金板材进行磨削,试件表面各处的材料去除厚度基本在0.1～0.16mm之间平稳浮动,取得了良好的控制效果.%This paper aims at problems of abrasive belt grinding on large-scale titanium alloy composite plates, a new control scheme of adaptive FUZZY-PID was proposed. The existing problem of uneven in the process of abrasive belt grinding on titanium alloy composite plates is solved effectively. And the grinding head and the belt follow the plate surface ups and downs effectively through contacting the work-piece with the constant pressure. Not only ensured the grinding depth and the size of the titanium alloy plates, but also did improve the surface processing quality. We carried out the grinding tests based on the simulation of the controlled object. The results showed that: Using the adaptive FUZZY-PID compound control grinding with constant pressure, the thickness of the material removal of the specimen surface is floating in the 0. 1 ~ 0. 16mm, and the control achieved good results.