锻压技术

12500 kN冷锻压力机机身结构的有限元分析

英文标题：FEM analysis on frame structure of 12500 kN coldforging press

作者：侯佳欣李江国蒋鹏徐超李海涛

分类号：TH17

出版年,卷(期):页码：2018,43(5):0-0

摘要：

为了研究侧向力对压力机机身强度和刚度的影响，以北京机电研究所有限公司自主研发设计的CWEP12500 kN冷锻压力机为研究对象，针对其在工作过程中的受力特点，提出3种机身受力模型，运用ANSYS Workbench软件进行静力学分析，得到了3种加载方式下机身的应力和变形。结果表明，3种加载方式得到的机身应力均在60 MPa左右，满足要求。当机身承受由滑块的锻造力分解出的水平侧向分力时，立柱产生0.32 mm的变形量，不符合0.2 mm的经验许用值。立柱产生过大变形量会对滑块导向产生不利影响，加剧导轨和滑块的磨损，影响压力机成形精度。因此，在今后的设计计算中，应当将机身受到的侧向力作为影响压力机刚度的因素之一，并且注意立柱尺寸和结构的优化，以增加其刚度。

In order to study the influence of horizontal force on the strength and rigidity of press frame，for CWEP12500 kN cold forging press designed and developed by Beijing Research Institute of Mechanical & Electrical Technology, three force models of frame were put forward based on the characteristics of force in the working process. Then, the static analysis was conducted by ANSYS Workbench software, and the stress and deformation of frame under three loading methods were obtained. The results show that the stress of frame under three loading methods is around 60 MPa respectively, which meets requirements. When the frame is subjected to horizontal lateral component of forging force acting on the sliding block, the column generates a deformation of 0.32 mm, which does not meet the experience allowable value of 0.2 mm. The excessive deformation of column leads an adverse effect on the slider orientation, aggravates the wear of guide rail and sliding block and affects the forming accuracy of press. Therefore, in the future, the horizontal force of frame should be taken as one of the factors that influence the rigidity of press, and the optimization of column size and structure is emphasized to increase the rigidity.

基金项目：

福建省科技重大专项（2016HZ0001-8）

作者简介：侯佳欣（1992-），女，硕士研究生 Email：741426318@qq.com 通讯作者：蒋鹏（1964-），男，博士，研究员 Email：jp1964@163.com

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