基于在线最小二乘支持向量机的数控机床热误差建模与补偿

摘要

In the actual production process, the thermal error can reduce the machining precision of the related part. Based on this, a method of thermal error modeling for numerical control machine tool based on online least squares support vector machine is proposed. The method can effectively eliminate the influence of the thermal error of the machine tool in the actual application process, and thus enhance the machining precision of the numerical control machine tool.%在实际生产过程中，数控机床由于热误差导致了相关零部件加工精度的降低。为了保证零部件的加工精度，以在线最小二乘支持向量机为基础对数控机床热误差进行建模。该方法在实际的运用过程中，可以减少甚至消除机床热误差带来的消极影响，使数控机床的加工精度处于比较稳定的水平。