高压开关用触头座径向孔加工工艺研究

Research on the Machining Process of the Radial Hole of the Contact Seat for High Voltage Switch

通过对高压开关用触头座径向孔沿圆周均匀分布和与端面孔夹角要求工艺分析,总结多种径向孔常用加工方法,设计出一种触头座径向孔加工的可旋转钻具。通过钻具旋转结构和分度结构配合,实现触头座径向孔的一次装夹、多孔加工,同时能够满足径向孔沿圆周均匀分布的要求,通过端面孔设置定位结构,实现初始加工径向孔与端面孔的夹角定位,保障径向孔与端面孔的夹角要求。该钻具的使用能够实现触头座径向孔在普通钻床上的快速加工,具有操作方便、效率高、加工精度高、角度误差离散性小等优点,设备利用率显著提升,人工成本明显降低,大幅节约生产成本。

Through the process analysis of the requirements for the radial holes of the contact seat for the high voltage switch to be evenly distributed along the circumference and the angle with the end hole,summarize the common processing methods of radial holes,design a rotatable drilling tool for machining radial holes in the contact seat,cooperate through drilling tool rotation structure and indexing structure,realize the one-time clamping and multi-hole processing of the radial hole of the contact seat,at the same time,it can meet the requirements of uniform distribution of radial holes along the circumference,set the positioning structure through the end face,realize the angular positioning of the initial machining radial hole and the end hole,guarantee the angle between the radial hole and the end hole.By using the drill,It can realize the rapid processing of the radial hole of the contact seat on the ordinary drilling machine,and has convenient operation,high efficiency,high processing accuracy,small angular error dispersion,significantly improved equipment utilization,reduced labor costs,and substantial savings in production costs.