准双曲面齿轮冷摆辗加工模具寿命预测及其工艺  

Die Life Prediction and Process of Cold Rotary Forging for Hypoid Gears

作　　者：党玉功 都德伟 邓效忠[3] 高振山[2] DANG Yugong;DU Dewei;DENG Xiaozhong;GAO Zhenshan(Vehicle&Transportation Engineering School,Henan University of Science&Technology,Luoyang 471003,China;Mechatronics Engineering School,Henan University of Science&Technology,Luoyang 471003,China;Collaborative Innovation Center of Machinery Equipment Advanced Manufacturing,Henan University of Science&Technology,Luoyang 471003,China)

机构地区：[1]河南科技大学车辆与交通工程学院,河南洛阳471003 [2]河南科技大学机电工程学院,河南洛阳471003 [3]河南科技大学机械装备先进制造河南省协同创新中心,河南洛阳471003

出　　处：《河南科技大学学报（自然科学版）》2019年第1期19-24,107,共7页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(51075121;51675161)

摘　　要：为了降低生产成本和提高生产效率,对冷摆辗加工模具寿命进行了预测和工艺优化分析。通过热力耦合有限元数值模拟得到模具在摆辗过程中的应力应变,借助模具寿命估算数学模型,估算出特定工艺参数下的模具寿命。根据寿命计算结果对不同工艺参数组合下的模具寿命进行对比分析,找出各工艺参数对模具寿命的影响规律,并确定合理的工艺参数组合。研究结果表明:当上模转速、上模摆角和摩擦因子分别为40 r·min^(-1)、10°和0. 14时,模具寿命达到了21 464次,寿命得到了显著的提高。In order to reduce production cost and increase production efficiency,die life of the cold rotary forging was predicted and process optimization was carried out.Stress and strain of the die in process of cold rotary forging was obtained by thermal-mechanical coupling finite element numerical simulation method,then die life under specific process parameters was estimated through mathematical model of the die life estimation.According to calculation results,life of the die under different combination of process parameters were analyzed,and influence law of various process parameters on die life was find out,and the reasonable combination of the process parameters was determined.The research results show that under the combination of the best predicted process parameters which is the upper die rotation speed,the upper die swing angle and the friction factor are 40 r·min-1,10°and 0.14 respectively,the die life reaches 21 464 times,and the service life has been significantly improved.

关 键 词：准双曲面齿轮 冷摆辗 模具寿命 局部应力应变 回归模型 

分 类 号：TH132.4[机械工程—机械制造及自动化]