碟形金刚石砂轮变速修整的磨削力特征和系统稳定性研究  

Study on Grinding Force Character and System Stability on Alternating-speed Dressing Saucer Diamond Wheel with Cup Wheel

作　　者：赵文祥[1] 庞思勤[1] 李亚非[2] 王西彬[1] 

机构地区：[1]北京理工大学,北京100081 [2]中国工程物理研究院,绵阳621900

出　　处：《中国机械工程》2005年第12期1050-1053,共4页China Mechanical Engineering

基　　金：国防科技预研项目(4040402030106)

摘　　要：在建立杯形砂轮修整碟形金刚石砂轮修整模型的基础上,分析了砂轮接触刚度对磨削系统稳定性和磨削力的影响。通过杯形砂轮修整碟形金刚石砂轮的修整力试验,对磨削力的信号特征、变化规律进行了数理检验。结果表明:磨削力信号是一种平稳的周期性非正态振动信号;砂轮接触刚度增加,径向磨削力增加,系统稳定性下降;低速磨削时磨削力最大;砂轮变速磨削,径向磨削力降低,修整效率最佳。Based on truing model of saucer diamond-grinding wheel with cup wheel, the influence of contact stiffness between saucer wheel and cup wheel on the stability of the grinding system and grinding force was discussed, as well as verifying of the signal characteristic and changing rule of grinding force. The experimental results show that radial grinding force increases and stability of the grinding system decreases with the increasing of contact stiffness. And the radial grinding force decreases with alternating grinding speed. The grinding forces come to biggest under low grinding speed. The signals of grinding force are stationarity and periodic vibration signals, which don't follow the normal distribution in general. The grinding of alternating wheel speed makes the best grinding effect.

关 键 词：变速修整 磨削力 修整模型 接触刚度 信号特征 系统稳定性 

分 类 号：TG74[金属学及工艺—刀具与模具]