我厂主要生产铁路机车车辆专用起重设备架车机。架车机丝杠的主螺母螺距大,螺纹长(图1)。在加工中由于刀杆长,强度、刚度不足,容易产生振动和“让刀”,影响产品质量和生产率的提高。现在我们设计了在刀杆上加一个浮动刀托(图2),解决了问题。 I plant mainly produces railway rolling stock special lifting equipment rack car. The main nut of the lead screw of the carriage machine has a large pitch and a long thread (Figure 1). In the processing of arbor long, strength, stiffness is not enough, prone to vibration and “let the knife,” affecting product quality and productivity. Now we have designed to add a floating knife holder (Figure 2) to solve the problem.