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.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
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)
