Spline tooth profile error measurement and evaluation method

The invention discloses a spline tooth profile error measurement and evaluation method. The method mainly comprises the steps of spline tooth profile and size definition and spline tooth profile error determination. The method is used for evaluating the machining quality of splines, effectively solves the problem of evaluation of tooth profile errors of end face type, inner ring type and strip-shaped spline teeth, can effectively evaluate the uniformity of tooth profile machining in a power transmission mechanism, evaluates the failure in the power transmission process, and evaluates the acceptance of batch production of products. The method has important application significance in design and development, failure analysis and quality control of a transmission structure. 本发明公开了一种花键齿形误差测量评价方法，主要包括花键齿形及其尺寸定义和花键齿形误差及确定。本发明用于评价花键的加工质量，有效地解决了对端面型、内环型、条形花键齿的齿形误差的评价，能有效地评价动力传输机构中齿形加工的均匀性，对动力传输过程中的失效做出评价，以及对产品批量生产的验收评价，在传动结构的设计开发、失效分析、质量把关均具有重要的应用意义。