基于稳定切削点在线识别的切削颤振自动控制方法  

Study on Automatic Control Method of Cutting Chatter Based on On line Recognition of Stable Cutting Point

作　　者：付连宇[1] 鲍 明[1] 石红雁[2] 于骏一[2] 

机构地区：[1]南京航空航天大学振动工程研究所,南京市210016 [2]吉林工业大学机械科学与工程学院,长春市130025

出　　处：《农业机械学报》2000年第2期92-95,共4页Transactions of the Chinese Society for Agricultural Machinery

基　　金：吉林省科委应用基础基金资助项目! (项目编号 :970 5 461)

摘　　要：通过试验研究了切削颤振自动控制的稳定切削点在线识别方法。结果表明 ,连续改变机床主轴转速时振动响应的最低点即为不发生颤振的稳定切削点。不同刀具几何形状下 ,稳定切削点也可以由这种方法来准确识别。稳定切削点识别出以后 ,迅速调整主轴转速 ,以稳定切削点所对应的主轴转速进行切削 ,切削颤振就会得到有效控制。极限切深试验表明 。The method to automatically control cutting chatter based on on line recognition of stable cutting point is studied by experiments. The results show that the vibrational response varies regularly when the spindle speed is continuously changed from low to high. The lowest point of the response is the stable cutting point. In another words, the cutting process is stable under this condition. The stable cutting point can also be accurately recognized on the conditions of different cutting tools. If chatter happened during a cutting process, the stable cutting point should be recognized and the spindle speed should be regulated to the corresponding stable cutting point, then cutting chatter can be effectively controlled. The experiments to verify the limit cutting depth show that the cutting efficiency of machine tool can be improved by cutting at the spindle speed corresponding to the stable cutting point.

关 键 词：切削颤振 自动控制 稳定切削点 在线识别 机床 

分 类 号：TG502.14[金属学及工艺—金属切削加工及机床]