在外锥螺纹的测量中,锥螺纹母线直度(圆度、坡度)尚未见到有关标准规定,更未见详实的测量方法的报道。实际上在加工锥螺纹时,必须计量母线的弯曲度、圆度、坡度,并采用可靠的测量方法。我厂在生产实践中运用模拟动态检测外锥螺纹母线的方法,保证了加工质量。现介绍如下。一、锥螺纹母线误差的来源锥螺纹加工主要由机床斜导轨形成锥度,其方法与加工圆柱螺纹基本相同,因此,锥螺纹母线误差主 In the outer taper thread measurement, taper thread straightness (roundness, gradient) have not yet seen the relevant provisions of the standard, but no more detailed measurement methods reported. In fact taper thread processing, the bus must be measured curvature, roundness, gradient, and the use of reliable measurement methods. I plant in the production practice using analog dynamic detection of outer tapered thread busbar method to ensure the quality of processing. Now introduced as follows. First, the source of taper thread bus error Taper thread processing is mainly formed by the taper of the inclined plane of the machine tool, and its method is basically the same with the processing cylindrical thread, therefore, the error of the taper thread generatrix