基于分层结构的伺服压力机滑块轻量化设计  

Lightweight slider design for a servo press based on its layered structure

作　　者：彭发忠 王传英 柴恒辉 邵珠峰[1] 王帅奇 王博文 PENG Fazhong;WANG Chuanying;CHAI Henghui;SHAO Zhufeng;WANG Shuaiqi;WANG Bowen(Beijing Key Laboratory of Precision Ultra-Precision Manufacturing Equipment and Control,State Key Laboratory of Tribology,Department of Mechanical Engineering,Tsinghua University,Beijing 100084.China;Jier Machine-Tool Group Co.,Ltd.,Jinan 250022,China)

机构地区：[1]清华大学机械工程系,摩擦学国家重点实验室,精密超精密制造装备及控制北京市重点实验室,北京100084 [2]济南二机床集团有限公司,济南250022

出　　处：《清华大学学报（自然科学版）》2020年第12期1016-1022,共7页Journal of Tsinghua University(Science and Technology)

基　　金：国家科技重大专项(2018ZX04020-001);国家自然科学基金联合基金项目(U19A20101)。

摘　　要：滑块是伺服压力机的重要组成部分,滑块质量直接影响压力机制造成本和精度。针对目前大型伺服压力机的滑块仍然存在结构不尽合理和质量过大的问题,该文以滑块结构轻量化为目标,结合滑块的结构特点和不同优化方法的优缺点,提出了一种基于分层结构的滑块轻量化设计方法。给出了实用的载荷分析模型以及边界条件的确定方法,作为ANSYS优化分析的基础。考虑到滑块上半部分所起的连接和支撑作用,在保证功能约束的前提下,采用拓扑优化实现其材料的最大化切除;对参数结构较为明确的滑块下半部分展开参数优化,优化隔板的厚度以及布局。利用ANSYS软件对整体优化方案进行了验证,在保证刚度要求的基础上,整体优化方案降低了滑块质量,实现了滑块轻量化。该文所提方法为机械产品的轻量化设计提供了一种有效途径。The slider is an important component of a servo press and its mass directly affects the punching accuracy and manufacturing cost.Some servo presses have bad slider structures and the sliders are too heavy.This paper presents a lightweight slider design method based on its layered structure using different optimizations.A load analysis model is developed to determine the boundary conditions for an ANSYS optimization analysis.Then,the connection and support of the upper part of the slider are analyzed using topology optimization to remove the maximum amount of material.The design parameters for the lower part of the slider are then optimized to optimize the separator thickness and layout.Finally,ANSYS is used to verify the overall optimized design.Thus,the slider mass is reduced while still ensuring sufficient rigidity of the slider.The method given in this paper provides an effective design method for lightweight mechanical products.

关 键 词：伺服压力机 滑块 轻量化 拓扑优化 参数优化 

分 类 号：TG315.5[金属学及工艺—金属压力加工]