摘要
为了提高大型核电叶片的磨削加工效率和改进现有的砂带磨削刀具轨迹生成方法,提出了一种针对组合曲面叶片的六轴联动螺旋磨削方法。该方法根据组合曲面相邻边界曲线与曲面造型提出了叶片砂带螺旋磨削切触点和刀具轨迹的计算公式。基于课题组自主开发的编程系统平台编制了相应的数控编程模块,生成了连续光滑的叶片螺旋磨削加工刀具轨迹。与砂带磨削原有的横向、纵向磨削方式相比,大大减少了叶片磨削过程中的让刀时间,提高了加工效率,降低了生产成本。
To improve the grinding efficiency of a large nuclear-electric blade and the existing sand belt grinding tool path generation method, we propose a novel six-axis joint motion spiral grinding method for the blade with a compound surface. Its core consists of： 1 ） with the boundary curves and the surface form adjacent to the compound surface, we work out the formula for calculating the blade＇s sand belt spiral grinding and cutter contact points and the tool path; 2） we develop the CNC programming module with our own CAD/CAM programming platform, thus generating the continuously smooth spiral grinding tool path for the blade. Compared with the previous horizontal and vertical sand belt grinding method, our method significantly reduces the processing time and production costs and improves the machining efficiency.
出处
《机械科学与技术》
CSCD
北大核心
2012年第10期1549-1553,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(50975111
50835004)
国家自然科学基金委员会自然科学基金重点项目(50835004)
国家"高档数控机床与基础制造装备"科技重大专项项目(2010ZX04001-201)资助
关键词
叶片
六轴联动
砂带磨削
螺旋加工
轨迹规划
blades
six-axis joint motion spiral grinding
sand belt spiral grinding
spiral grinding tool
path generation
