叶轮滚铆加工中滚铆头进给速度的分析与计算方法
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摘要
针对冲焊型液力变矩器的叶轮滚铆加工中由于滚铆头进给速度不当导致的连接片与叶轮内环贴合不紧密和连接片根部凸起的问题,对滚铆头的工作原理和连接片变形过程进行了分析,提出了一种滚铆头进给速度的计算方法。经过运动仿真和实验证明,滚铆头采用抛物线型的进给速度可以有效避免连接片根部凸起并且减小了连接片与叶轮内环的间隙,提高了滚铆加工效率。
In the rolling riveting process of the impulse-type hydraulic torque converter,improper feeding speed of the rolling rivet head will cause the root of the connecting piece to bulge and cause the connecting piece and the inner/outer ring of the impeller not to be closely attached. In view of the above problems,the working principle of the roller riveting head and the deformation process of the connecting piece were analyzed. A calculation method of the feed speed of the rolling rivet head was proposed. The feed rate of the rolling rivet head was fitted using the least square method. curve. After motion simulation and experiments have proved that the use of parabolic feed speed of the rolling rivet head can effectively avoid the problem of convexity of the connection piece root and reduce the gap between the connection piece and the impeller inner/outer ring,and improve the rolling riveting processing efficiency.
In the rolling riveting process of the impulse-type hydraulic torque converter,improper feeding speed of the rolling rivet head will cause the root of the connecting piece to bulge and cause the connecting piece and the inner/outer ring of the impeller not to be closely attached. In view of the above problems,the working principle of the roller riveting head and the deformation process of the connecting piece were analyzed. A calculation method of the feed speed of the rolling rivet head was proposed. The feed rate of the rolling rivet head was fitted using the least square method. curve. After motion simulation and experiments have proved that the use of parabolic feed speed of the rolling rivet head can effectively avoid the problem of convexity of the connection piece root and reduce the gap between the connection piece and the impeller inner/outer ring,and improve the rolling riveting processing efficiency.
引文
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[14]潘文宏,曹巨江,刘煊,等.专用滚铆机主轴液压系统设计与运动仿真分析[J].机床与液压,2017,45(14):93-97.
[2]Wei Z,Chen R. Re-manufacture feasibility analysis for stamping and welding type torque converter[J]. Journal of Tongji University,2014.
[3]席智星.制造方法对液力变矩器性能影响的研究[D].长春:吉林大学,2011.
[4]任工昌,杨宇龙,宜永刚,等.液力变矩器涡轮的滚铆工艺[J].工具技术,2016,50(12):55-58.
[5]刘善民,吕浩,唐春.变矩器分总成滚铆工艺技术在普通车床中的应用[J].科技创新与应用,2013(30):115-11
[6]Pan W,Cao J,Zou F,et al. Analysis of outer ring of torque converter blade rolling riveting mechanics based on ANSYS Workbench[J]. Modern Manufacturing Engineering,2017(2):149-152.
[7]杨宇龙.液力变矩器滚铆机的设计与研究[D].西安:陕西科技大学,2017.
[8]陈光,任志良,孙海柱.最小二乘曲线拟合及Matlab实现[J].兵工自动化,2005,24(3):107-108.
[9]Chen L,Zheng Y. Study on curve fitting based on least square method[J]. Journal of Wuxi Institute of Technology,2012(5):57-60.
[10]徐亦唐.基于最小二乘法的曲线拟合及其在Matlab中的应用[J].电子世界,2013(10):102-103.
[11]Wang X H,Cheng Y,Zhang J N. Design and analysis of automatic ballot box based on SolidWorks Motion[J]. Advanced Materials Research,2013,703:340-344..
[12]Wang J P,Shang Q,Bao Z F. Assembly and motion simulation of turntable of drilling rig based on SolidWorks[J]. Key Engineering Materials,2011,474-476:2253-2257.
[13]钱阳辉.基于电液比例阀控缸位置系统的控制策略及性能研究[D].沈阳:东北大学,2012.
[14]潘文宏,曹巨江,刘煊,等.专用滚铆机主轴液压系统设计与运动仿真分析[J].机床与液压,2017,45(14):93-97.