近年来,为实现机床的高效率加工,在进行高速切削和重切削的机械加工过程中,致使机床主轴系统发热增加,造成加工精度下降,尤其是在精密加工中,机床热变形给加工误差带来很大的影响。因此,防止机床热变形方法的研究是当前机床行业的重要课题。目前,防止机床热变形的方法很多,但冷却效果较好的是油温自动控制循环冷却法。这种冷却方法,虽然能满足机床的高精度、高效 In recent years, in order to achieve high-efficiency machining of machine tools, high-speed cutting and heavy cutting in the machining process, resulting in machine tool spindle heating increases, resulting in decreased processing accuracy, especially in precision machining, machine tool deformation to the error of processing Come a big impact. Therefore, to prevent the hot deformation of machine tool research is an important issue in the current machine tool industry. At present, there are many ways to prevent thermal deformation of the machine tool, but the cooling effect is better controlled by automatic cooling oil circulation method. This cooling method, although to meet the machine’s high precision and efficiency