摘要
针对高精度、高硬度球面加工难的问题,提出一种数控插补方式实现外球面高精度磨削的方法,利用数控外圆磨床的高精度圆弧插补功能,在通用数控外圆磨床上、使用普通砂轮实现高硬度外球面的高精度磨削。论述了外球面数控插补磨削的原理,优化了对刀方法,通过自动"修整-磨削-修整"来减小砂轮磨损的影响,自主编制开发了一套参数化的球面磨削程序,集成球面磨削的全过程,实现了磨削过程全流程数字化,最后采用此方法磨削硬度为HRC60的球形零件,球面轮廓度达0.002mm、粗糙度达Ra0.15μm。
A method was introduced to obtain high-precision and high-rigidity spherical surfaces. Utilizing NC function of CNC external cylindrical grinding machine, high-precision grinding of high-rigidity spherical surfaces can be realized on general grinding machine using general grinding wheel Principle of the method was described. The tool setting method was optimized and a ＂dressing-grinding-dressing＂ way was applied to compensate grinding wheel wear. A set of programs which integrates the whole grinding process was developed. An example, achieving a sphere with rigidity of HRC60, surface figure accuracy of 0.002mm and roughness of Ra0.15μm, demonstrated the effectiveness of the method.
出处
《机械设计与制造》
北大核心
2015年第12期129-131,共3页
Machinery Design & Manufacture
关键词
球面
插补
磨削
高精度
Sphere Surface
NC Interpolation
Grinding
High Precision
