基于序列的五轴联动数控加工中心后置处理器仿真与优化  

Simulation and Optimization of Post Processor of FiveAxis CNC Machining Center Based on Sequence

作　　者：杨坤[1] 赵夫超[1] 毕忠梁[1] YANG Kun;ZHAO Fuchao;BI Zhongliang(School of Mechanical and Electrical Engineering,Anqing Vocational and Technical College,Anqing 246003,Anhui,China)

机构地区：[1]安庆职业技术学院机电工程学院,安徽安庆246003

出　　处：《惠州学院学报》2023年第3期22-27,共6页Journal of Huizhou University

基　　金：安徽省教育厅高等学校省级质量工程项目(2020jyxm1126,2020sxzx27)。

摘　　要：在五轴联动数控加工过程中,局部干涉技术影响下,加工节省时间百分比较低,为了提升后置处理器的应用性能,进行基于序列的五轴联动数控加工中心后置处理器仿真与优化。通过CAM软件获取后置处理器工作流程,依靠特征提取算法,获取数控加工特征,生成面向STEP-NC的五轴联动机床后置处理序列。根据加工序列,设计以装夹变换最少、转角变换路径最短为目标的后置处理器全局优化方案。通过转角优化选解,实现后置处理器的有效改进。实验结果表明:所提方法优化后的后置处理器,五轴联动数控加工节省时间百分比平均值为7.75%,相比相关文献提出的2个优化方法,节省时间百分比提升6.50%、6.77%。In the process of five axis NC machining,under the influence of local interference technology,the percentage of machining time saved is relatively low.In order to improve the application performance of the post processor,the post processor simulation and op‐timization of the five axis NC machining center based on sequence is carried out.The workflow of post processor is obtained by CAM software,and the NC machining features are obtained by feature extraction algorithm to generate the post-processing sequence of STEPNC oriented five axis linkage machine tool.According to the machining sequence,a global optimization scheme for the post processor is designed,which aims at the least clamping transformation and the shortest corner transformation path.Through corner optimization,the post processor can be effectively improved.The experimental results show that the average time saving percentage of the post processor optimized by the proposed method is 7.75%,which increases by 6.5%and 6.77%compared with the optimization methods proposed in literature[3]and literature[4].

关 键 词：序列 五轴混联机床 数控加工中心 后置处理器 选解优化 仿真 

分 类 号：TH133[机械工程—机械制造及自动化]