Abstract: Working condition of ejector has been analyzed and a more rational calculation formula for ejector diameter has been given on the basis of principle of rigidity reliability design.

• 文摘:应用刚度可靠性设计的理论，对顶杆的工作情况进行分析，提出了一种更加合理的顶杆直径计算公式，并将其用于实际生产。