伺服冲床主传动机构构型及运动学优化设计

Type Synthesis and Optimization of Main Driving Mechanism for Servo-punch Press

伺服冲床是一种高速高频高精的新型板材冲压机床,其主传动机构构型、尺寸、性能直接影响冲床的精度、效率、冲压力等主要工作性能参数。通过分析现有机构构型,对伺服冲床主传动机构进行构型设计,并分析两种不同类型的机构特点。总结目标函数法和性能图谱法两种优化方法的特点及适用情况,提出基于目标函数法的冲床主传动机构优化目标函数,并采用两种优化设计方法分别对两类主传动机构进行尺度综合,验证了不同类型机构的特点。该研究对伺服冲床主传动机构构型及优化设计提供了思路及方法。

An Euler buckled beam formed negative stiffness mechanism is proposed and the static characteristic of which is analyzed. Servo drive turret punch press is a new type of press with high-speed, high-frequency and high-precision. The main driving mechanism is a very important part whose type, dimension, performance can directly affect the main performance of punch press such as efficiency, precision and punching force. Based on the analyses of mechanisms being used, type synthesis of main driving mechanism is done. The characters of two different types of mechanism are analyzed. Two optimization methods of objective function method and performance atlases and their application are analyzed. Optimization objects using objective function method are proposed. To recognize the mechanism characters better, two types of mechanism are optimized by using different methods mentioned above. This research provides a train of thought and method for type synthesis and optimization of main driving mechanism of servo punch press.