|
|||||
|
|
| 折弯机机械补偿机构接触应力的有限元分析 | |
| 引用本文： | 李堑,王金荣,冷志斌,朱灯林.折弯机机械补偿机构接触应力的有限元分析[J].锻压装备与制造技术,2011(5):30-33. |
| 作者姓名： | 李堑 王金荣 冷志斌 朱灯林 |
| 作者单位： | 1. 河海大学机电工程学院,江苏常州213022;江苏亚威机床股份有限公司,江苏江都225200 2. 江苏亚威机床股份有限公司,江苏江都,225200 3. 河海大学机电工程学院,江苏常州,213022 |
| 摘 要： | 机械补偿机构是金属板材折弯机中普遍使用的挠度补偿机构,它可以减小折弯工件时滑块与工作台挠曲变形带来的不利影响,提高折弯机的制件精度。工作时机械补偿机构受到反复的挤压与拉伸,容易产生强度和疲劳破坏,因此,设计中对其进行强度校核是必不可少的一个环节。本文采用三维弹性接触有限单元法对折弯过程中某型机械补偿机构的接触应力和变形进行了数值模拟。分析结果表明:该机械补偿机构的接触应力满足强度要求,凹槽台面的变形曲线能较好吻合理想加凸曲线。该方法对类似机械补偿机构的强度校核与设计,具有指导意义。 |
| 关 键 词： | 机械制造 强度校核 机械补偿机构 有限元分析 |
Finite element analysis of the contact stiffness for mechanical crowning compensation equipment in press brake |
|
| LI Qian,WANG Jinrong,LENG Zhibin,ZHU Denglin.Finite element analysis of the contact stiffness for mechanical crowning compensation equipment in press brake[J].China Metalforming Equipment & Manufacturing Technology,2011(5):30-33. | |
| Authors: | LI Qian WANG Jinrong LENG Zhibin ZHU Denglin |
| Affiliation: | 1(1.Institute of Mechanical and Electrical Engineering,Hehai Univeristy,Changzhou 213002,Jiangsu China;2.Jiangsu Yawei Machine Tool Co.,Ltd.,Jiangdu 225200,Jiangsu China) |
| Abstract: | The numerical simulation of the contact stress and crowning curve has been obtained in the text by use of a three-dimensional elastic contact finite element method.The results show that the contact stress in the system can meet the material intensity requirement and the simulation crowning curve can coincide to the ideal compensation curve well.The method proposed in the text provides a guide for the design and intensity calibration of the mechanical crowning compensation system in press brake. |
| Keywords: | Intensity calibration Mechanical crowning compensation part Finite element analysis |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |