中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2014年
21期
2955-2961
,共7页
三维图样%基于模型定义%公差传递链%敏感度
三維圖樣%基于模型定義%公差傳遞鏈%敏感度
삼유도양%기우모형정의%공차전체련%민감도
3D drawing%model based definition(MBD)%tolerance chain%sensitivity
提出了基于模型定义技术及动态同构树数据框架的三维图样实现方法,为数控机床公差优化分配过程提供优质数据源。基于雅可比旋量法构建了公差分析模型,对公差传递链各个环节进行了敏感度分析。在满足设计要求的条件下,以成本最小为原则,对各环节公差进行最优配置。以某龙门导轨磨床磨头为例,建立了各零部件的三维图样,并在系统中完成了其公差优化分配过程。验证了基于三维图样的公差优化分配方法的可行性。
提齣瞭基于模型定義技術及動態同構樹數據框架的三維圖樣實現方法,為數控機床公差優化分配過程提供優質數據源。基于雅可比鏇量法構建瞭公差分析模型,對公差傳遞鏈各箇環節進行瞭敏感度分析。在滿足設計要求的條件下,以成本最小為原則,對各環節公差進行最優配置。以某龍門導軌磨床磨頭為例,建立瞭各零部件的三維圖樣,併在繫統中完成瞭其公差優化分配過程。驗證瞭基于三維圖樣的公差優化分配方法的可行性。
제출료기우모형정의기술급동태동구수수거광가적삼유도양실현방법,위수공궤상공차우화분배과정제공우질수거원。기우아가비선량법구건료공차분석모형,대공차전체련각개배절진행료민감도분석。재만족설계요구적조건하,이성본최소위원칙,대각배절공차진행최우배치。이모룡문도궤마상마두위례,건립료각령부건적삼유도양,병재계통중완성료기공차우화분배과정。험증료기우삼유도양적공차우화분배방법적가행성。
Using MBD and dynamic isolog tree data framework an implementation method of 3D drawings was proposed to provide quality data sources for the tolerance optimization allocation process of NC machine tool.A tolerance analysis model was constructed based on the Jacobi spinor method, and sensitivity analysis for each link of tolerance chain was carried out.Under the conditions of the design requirements and with the principles of minimum cost,the optimal allocation of tolerance in each link was obtained.With grinding head of gantry rail grinder as example,3D drawings of its com-ponents were set up,and the tolerance optimization allocation was completed in the system.The fea-sibility of tolerance optimization allocation method based on 3D drawings was verified.