斜锥面专用磨削装置的研制

金属环硬密封的高性能蝶阀，其性能取决于阀门密封环的加工装配精度，由于使用专用的大型磨削加工设备进行密封环锥面的磨削加工投资极高，本文提出一种可作为常见大型通用加工设备(如立式车床)附件使用的专用磨削装置设计方案．以解决金属硬密封阀门密封环面的精加工问题。本设计利用伺服跟踪原理，采用随动装置使砂轮的轴向运动与工作台的周向运动同步进行，保证砂轮自动跟随密封环当前高度进行磨削。该磨削装置的主要特点是利用随动装置配合高速内圆磨具使砂轮自动跟踪磨削曲面实现精确加工。主要优点是：以较少的投资解决了特种行业不规则曲面的精密磨削问题．操作简单、维护方便、加工效率高且加工精度高。

DEVELOPMENT OF A SPECIAL PURPOSE GRINDING DEVICE FOR CONICAL SURFACE GRINDING

The performance of high quality butterfly valve depends on the precision of machining and assembly. This paper introduced a special grinding device used for conical surface grinding, which can be used as accessary of common large machining equipment(such as vertical lathe). This device proved to be successful in precision machining of the hermetical ring cone of hard metal hermetical valve. The device, designed on servo tracking principle, synchronizes the axial motion of the grinding wheel with the circular motion of the working table, and ensures the grinding wheel to trace the current height of hermetical ring cone. The chief feature of this grinding device is that the grinding wheel can trace the curved surface automatically and achieve precise machining by the help of servo device cooperating with high speed internal grinding tool. The main advantages of the device are efficient, high precision, easy operation and convenient maintenance. It can improve the grinding precision of irregular curved surface in special industry at lower cost.