支持挤出平模头自动化研磨的测量技术

Measurement technology assisting extrusion dies automatic grinding

针对目前国内尚无快速、经济、有效的解决挤出平模头自动化研磨平模头直线度检测的现状,通过对测量对象的深入研究,建立了测量数学模型,提出了挤出平模头直线度测量方法。该方法通过计算机对一条假设的正弦波曲线进行测量精度模拟验证,并考虑定位误差等影响最终结果的误差;对得到的目标曲线按照形位公差国家标准,使用最小条件的原则进行直线度评定。通过几组实验的数据总结,从而验证此测量方法的可行性。

Aiming at the requirement of fast economical and effective solution to linearity testing of extrusion dies automatic grinding, the linearity testing of extrusion dies was studied through intensive research on testing target and measuring mathematic model building. Then, measuring accuracy was verificated through computer simulation using VC6.0 with the factors considered such as positional deviation, micrometer gauge numerical reading deviation and micrometer gauge self accuracy deviation. Last, the simulated curve linearity was evaluation according geometric tolerance national standard and minimal condition principle. The results indicate that the linearity testing is feasible and the stabilization of measuring method is obvious.