分析了影响冷轧丝杠精度的因素,探讨轧辊主动、冷却液恒温、片式组合轧辊、粗精轧分开和变速轧制等对丝杠精度提高的可能性。最后还提出了一种有意不断改变某一环节,从而使丝杠的误差得到相对的稳定,并可放宽对其它环节稳定的要求的设想。 The factors influencing the precision of the cold rolling screw were analyzed. The possibility of improving the accuracy of the lead screw, such as the roll initiative, the constant temperature of the coolant, the chip combination roll, the roughing and rolling separation and the variable speed rolling were discussed. Finally, a concept of intentionally changing a certain link so that the lead screw error can be relatively stable and can relax the requirements of other links is also proposed.