丝杠螺母副在机床上得到广泛的应用,但两者产生间隙后,加工中易产生振动,直接影响工件质量和进给精度,尤其在精密传动中,影响更加严重。为了提高进给机构的精度及抗震性,应该采用消除间隙机构。下面介绍几种国外消除间隙机构,供在机床维修和改装中参考。图1的消除间隙机构,由固定螺母和调整螺母组成。旋转调整螺母作轴向位移,直 Screw and nut pair are widely used in machine tools. However, the gap between the two leads to vibration during machining, which directly affects workpiece quality and feed accuracy, especially in precision transmission. In order to improve the accuracy of feed mechanism and shock resistance, should be used to eliminate the gap mechanism. Here are several foreign elimination gap agencies for reference in machine maintenance and modification. Figure 1 clearance mechanism, by the fixed nut and adjusting nut composition. Rotate the adjusting nut for axial displacement, straight