摘要
为解决螺旋、渐开线花键、榫槽齿形等复杂拉刀的数控磨削相关技术难点,通过对拉刀数控磨削工艺、双圆弧廓形拟合算法、砂轮廓形修正算法等的分析研究,得到了拉刀数控磨削模型构建、刀位轨迹规划和数控代码后处理的相关方法。依此提出了拉刀数控磨削计算机辅助制造系统构架,开发了一套拉刀数控磨削计算机辅助制造系统。通过基于VERICUT构建的虚拟拉刀数控成形磨床进行拉刀磨削实验,对计算机辅助制造系统的功能和各算法进行了验证。结果表明,该计算机辅助制造系统能够实现复杂拉刀前角、后角、廓形、齿背磨削以及成形砂轮廓形修正数控程序的编制,磨削工艺合理,廓形修正精确。
To deal with the correlative technical difficulties（spiral broach,involute spline broach,fir tree groove,etc.） in broach Numerical Control（NC） grinding,by analyzing grinding process,biarc approximation profile fitting algorithm,and gringding wheel correction algorithm of broach NC,the methods of modeling broach for grinding,planning tool path＇s lay-out and post-process for NC code were acquired.The architecture of broach NC grinding Computer Aided Manufacturing（CAM） system was put forward according to these methods,and CAM system for broach NC grinding was developed.Besides,grinding experiments were conducted based on a virtual grinder which was set up in VERICUT to verify each algorithms and CAM system＇s functions.The results showed that the CAM system could correctly generate NC codes to process the rake-angle,clearance-angle,profile,relief-angle of broach and profile correction for wheel.
出处
《计算机集成制造系统》
EI
CSCD
北大核心
2011年第10期2150-2155,共6页
Computer Integrated Manufacturing Systems
基金
国家科技重大专项资助项目(2009ZX04001)
国家863计划资助项目(2009AA04Z147)~~
关键词
拉刀成形磨削
计算机辅助制造
廓形拟合
廓形修正
磨削工艺
数控系统
broach form grinding
computer aided manufacturing
profile fitting
profile correction
grinding process
numerical control system
