为了提高丝杠的精度与表面光洁度,我院金属切削实验室吴佐启同志,通过试验,设计制造了一种结构简单、使用方便的丝杠滚压工具。我们使用这种滚压工具(如图),以v=5.6 米/分,法向压力50公斤,对外径32毫米长1500毫米45钢料的丝杠三次滚压后,表面光洁度可由▽▽5提高到▽▽▽9;表面显微硬度可由H_B201提高到H_B240;螺距误差减少约0.044毫米,螺距的累积误差也有减少。滚压工具的滚压头1,装在两个径向滚珠轴承内。轴承3 In order to improve the lead screw accuracy and surface finish, our hospital metal cutting lab Comrade Wu Zuqi, through the experiment, designed and manufactured a simple structure, easy to use screw rolling tool. We use this rolling tool (pictured) to v = 5.6 m / min, the normal pressure of 50 kg on the outer diameter of 32 mm long 1500 mm 45 steel screw three times after rolling, the surface finish by ▽ ▽ 5 Increase to ▽ ▽ ▽ 9; the surface microhardness can be increased from H_B201 to H_B240; the pitch error is reduced by about 0.044 mm, and the cumulative error of pitch is also reduced. Rolling head 1, mounted in two radial ball bearings. Bearing 3