轴对称非球面磨削加工中砂轮均匀磨损研究  

Uniform wear of the wheel in grinding axisymmetric aspheric

作　　者：周旭光[1] 阎秋生[2] 孔令叶[3] 

机构地区：[1]深圳职业技术学院机电工程学院,广东深圳518055 [2]广东工业大学机电工程学院,广州510006 [3]广东工贸职业技术学院,广州510510

出　　处：《金刚石与磨料磨具工程》2017年第2期36-40,共5页Diamond & Abrasives Engineering

基　　金：深圳市科技局应用基础研究项目(No.2111K3020004)

摘　　要：为实现轴对称非球面加工过程中盘形砂轮的均匀磨损,研究平行磨削加工过程中实现恒去除量磨削的办法。首先,分析平行磨削过程中磨削点绕盘形砂轮端部圆弧圆心转动的角速度、砂轮的进给速度和磨削点的线速度。然后,通过建立单位时间内盘形砂轮磨削的体积数学模型,推导平行磨削轴对称非球面过程中不同磨削位置的单位时间磨削量。最后,通过优化进给速度,保持平行磨削加工过程中的砂轮恒去除量进给,基本实现盘形砂轮的均匀磨损。结果表明:平行磨削过程中保持砂轮的恒去除量进给,盘形砂轮边缘部位的磨损明显得到改善,实现了盘形砂轮磨削过程中的较均匀磨损。In order to realize uniform wear of the wheel when grinding axisymmetric aspheric, constant removal grinding in parallel grinding is investigated. Firstly, the relation between the angular velocity of the grinding point, the feed rate of the grinding wheel and the line speed of the grinding point are analyzed. Then a new mathematical model of grinding volume is obtained by accurate calculating removal in grinding with any time, and relational expression of removal is derived between the position of the grinding point and the feed rate within unit time in parallel grinding. Finally, axisymmetric aspheric constant removal grinding is realized through sub-feed control wheel feed rate in parallel grinding, and tests are conducted on constant removal grinding. Experimental results indicate that the wear in wheel edge parts is significantly decreased in in parallel grinding, and constant removal grinding can basically achieve uniform wear of the wheel by sub-feed control wheel feed rate.

关 键 词：平行磨削法 轴对称非球面 角速度 进给速度 

分 类 号：TG74[金属学及工艺—刀具与模具] TG58