加工航空用柱塞泵的球型铰刀结构设计

针对目前国内航空用柱塞泵产品加工中存在的柱塞孔加工质量差、效率低的问题,参照国外类似产品加工经验,提出球型铰刀铰孔的加工方式。研究利用球型定心好、受力均匀、阻力小的特点,改进铰刀的传统结构。通过在刀具形状、尺寸、材料、耐磨性等方面改进,开发出新型铰刀的设计结构。与现有加工方式进行对比,球型铰刀能够明显提高所加工孔的圆柱度和表面质量,并具有制造成本低廉、实用性强的特点。

Design of Spherical Reamer for Machining Aviation Piston Pump

In domestic,the quality of plunger hole in aviation piston pump is quite poor and the production efficiency is quite low at present.In order to solve those problems,spherical reamer is put forward after studying foreign similar products processing experience.Based on well centered spherical center,the stress could be well distributed and the resistance could be well reduced,and this research improved the traditional structure of reamer.By adjusting its shape,size,material,wear resistance etc,new structure design of reamer is developed.Compared with the existing processing way,spherical reamer can evidently improve the cylindricity and surface roughness.Meanwhile,the process of producing plunger hole with spherical reamer is more economical and practical.