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针对硬脆非球面光学镜硬度高、型面特殊、加工面积大、加工质量要求高的特点,提出了一种基于法向跟踪的、以圆筒形砂轮端面进行磨削的非球面范成精密加工方法。在此基础上,进一步设计了智能化的实时检测与自适应控制方法。应用这些方法实现了磨削运动轨迹的精确控制、砂轮磨损的自动补偿、磨削压力的自动控制、工艺参数的自动调节。实验结果表明:以圆筒砂轮端面进行磨削的、基于法向跟踪的非球面范成精密磨削法可以保证非球面的面形精度,砂轮磨损实时检测与自适应控制方法能提高加工质量和效率。
Aiming at the characteristics of hard and brittle aspherical optical mirror such as high hardness, special profile, large processing area and high processing quality, a new aspheric surface grinding method based on normal tracking is proposed. processing method. On this basis, further design of intelligent real-time detection and adaptive control methods. Application of these methods to achieve precise control of grinding trajectory, wheel wear automatic compensation, automatic control of grinding pressure, process parameters automatically adjust. The experimental results show that the precision grinding method of aspheric surface grinding based on normal tracking can ensure the surface accuracy of aspheric surface. The real-time detection and adaptive control of grinding wheel wear can improve the machining quality and effectiveness.