基于激光测距定位的切割片应力和温度场仿真分析

铸造浇冒口自动化切割过程中，因磨损作用造成切割片直径逐渐减小，影响切割过程的定位精度。基于激光测距仪提出一种通过测量切割片磨损后剩余直径实现自动定位的方法，并运用ABAQUS有限元分析软件设计单因素试验，分析切割片厚度尺寸增加前后的应力场和温度场情况。仿真和试验结果表明:适当增加切割片厚度有利于避免应力集中和降低切割温度，且实际切割试验中切割片厚度增加，工件表面形貌有所改善。 

Simulation analysis of stress field and temperature field of cutting blades based on laser ranging and positioning

In the automatic cutting process of casting pouring riser, the diameter of the grinding wheel is gradually reduced due to wear, which affects the positioning accuracy of the cutting process. Based on the laser distance meter, a method for automatic positioning by measuring the remaining diameter of the cutting blade after wear is proposed. ABAQUS finite element analysis software is used to design single-factor experiments to analyze the stress and temperature field before and after increasing the thickness of the cutting blade. The results of the study show that properly increasing the thickness of the cutting sheet is beneficial to avoid stress concentration and reduce the cutting temperature, and it is found that the surface morphology of the workpiece improved after the thickness of the cutting disc is increased.