多连杆压力机优化设计  

Matlab-based Optimization of Multi-link Presses

作　　者：孙昕煜 孙宇[1] 彭斌彬[1] 

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《机械制造与自动化》2015年第2期29-32,45,共5页Machine Building & Automation

基　　金：江苏省"闭式超高速精密数控冲床的研发"科技支撑项目(BE2012174)

摘　　要：针对某一新型的多连杆高速压力机,进行了运动学分析建模。根据给定的性能指标,基于Matlab编程软件,利用步长搜索法对各杆件的结构尺寸进行优化设计。在优化参数基础上,获得压力机主滑块的位移、速度和加速度曲线,并与传统曲柄滑块机构运动曲线进行了比较,结果表明此多连杆压力机具有下死点附近位移曲线相对平缓,进程和回程速度快等特点,对于工件成型精度和提高加工效率有一定的意义。This paper analyzes the kinematics of the multi-link presses. According to its performances, the length of each part is opti- mized by using the step search method based on the software of Matlab. The optimized parameters are used to obtain the displace- ment, speed and acceleration curve of the main slider. Then the curves are compared with those of the traditional slider-crank mech- anism. The result shows that this configuration has the characteristics of the smooth curve near the lower dead point and high speed at approaching and leaving the lower dead point. And it is useful to improve the forming accuracy of the workpiece and the processing efficiency.

关 键 词：压力机 多连杆 优化 

分 类 号：TH122[机械工程—机械设计及理论]