Abstract:It is can be seen from the proposed mechanical processing technology scheme,many processes are needed to complete the taking over part processing.Focusing on the MQS3660 wet grate right-hand ball mill,the key working procedure in the machining process of the taking over part was discussed,including the selection of the cutting tool,fixture and clamping mode.Then based on SIEMENS NC system,MQS3660 wet grate righthand ball mill taking over part processing macro program was developed,and the parts processing was accomplished on the TK-5680 machine tool.