正细长轴加工是车削加工中的难题,而要在轴上车出梯形螺纹,其难度就更大了。因为细长轴本身刚性就差,在车削过程中,受切削力、装夹力、自身应力、振动和切削热等因素的影响,容易造成车削尺寸精度超差、加工表面粗糙度值、报废等缺陷。笔者探讨出加工小螺距丝杠加工的技巧。 Slender shaft machining is a turning problem, but trapezoidal thread on the shaft, the greater the difficulty. Because the slender shaft itself is poor rigidity, in the turning process, by the cutting force, clamping force, its own stress, vibration and cutting heat and other factors, likely to cause ultra-precision turning dimensions, surface roughness, scrap, etc. defect. The author discusses the processing of small pitch screw machining skills.