The structual characteristic and the technology reguirement of the mitre valve piston were analyzed in this paper,a fairly feasible fixed angled hole mould was designed by the method of technology benchmark for the angled hole machining.

• 对锥阀芯的结构特点及工艺要求进行分析,采用工艺基准法设计出一套适用性较强的固定式钻模,用于锥斜孔零件的加工。