通过分析摆轴式电火花小孔机的结构特点,结合三维空间建模软件,对航空发动机矢量小孔位置进行坐标重构,寻找空间坐标变换矩阵,从而将笛卡尔理论坐标系统变化为适应机床的多坐标系统,实现三维空间小孔的加工。并引入修正矩阵,减小了装配过程引进的误差。利用巧妙的工装设计方案,消除了小孔加工出口处的烧蚀问题。 By analyzing the structural characteristics of the pendulum shaft EDM and combining with the 3D space modeling software, the coordinates of the aero-engine vector hole are reconstructed and the space coordinate transformation matrix is ​​searched, so that the Cartesian coordinate system can be adapted to the machine tool Multi-coordinate system to achieve the three-dimensional space hole processing. And the introduction of the correction matrix, reducing the assembly process introduced the error. The clever tooling design eliminates the problem of ablation at the exit hole of the hole.