摘要
通过对半球阀阀芯(小口径Dn150mm以下)的研磨工艺进行研究,得出研磨速度、研磨压力对研磨的效率影响较大,正弦波研磨轨迹能有效降低表面粗糙度;超声/机械复合研磨,可以提高加工效率,提高尺寸精度、球面度,降低表面粗糙度;设计出具有三维弹性浮动支承、可调节研磨速度和研磨压力、按正弦波轨迹运动、保证超声振动加工条件的机构。
Through the grinding technology research of the spool （Dn 〈150mm） of half-ball valve, the fact that milling speed and presure have a great influence on milling efficiency has been proved. Roughness of surface can be effectively decreased by track in sinusoid model;grinding with ultrasonic and mechanical technology can increase the efficiency,precision and the roughness of sphere. The three-dimensional and flexible structure with adjustable milling speed and presure can be disigned. The track of this structure is in sinusoid model and ultrasonic vibration can be insured.
出处
《机械设计与制造》
北大核心
2009年第5期149-151,共3页
Machinery Design & Manufacture
基金
郑州市2006科技攻关项目[6-11]
关键词
双偏心半球阀
球面研磨
正弦波轨迹
超声/机械复合研磨
三维弹性浮动支承
Double--eccentricity half-ball valve
Spherical Grinding with ultrasonic and mechanical
The three-dimensional milling
Track in sinusoid model
and flexible structure
