在滚珠丝杠传动机构中和支承中均有较大的预加负荷,再加上外部热源的传导,使传动机构发热,导致进给传动机构的参数热误差,影响工件的定位精度。提高支承的载荷,如不考虑发热的影响,会使其在设计的有效期内失去工作能力。在采用滚珠丝杠的结构设计中,一般是根据具体工作条件和传 In the ball screw drive mechanism and the support has a large pre-load, coupled with the external heat conduction, so that the transmission heat, lead to the parameters of the feed mechanism thermal error, affecting the positioning accuracy of the workpiece. Increasing the load on the support, if it does not take into account the effects of heat, will render it incapable of working for the life of the design. In the use of ball screw structure design, usually based on specific working conditions and pass