多连杆伺服压力机实验平台的设计

Design of Experimental Platform for Multi-link Servo Press Machine

与传统压力机相比,伺服压力机不仅有结构简单、维护容易、低能耗等优点,还能够完成复杂的加工工艺,提高生产效率。基于多连杆机构,设计了一种100k N伺服压力机实验平台。首先确定压力机机构的具体尺寸,通过建模在Adams中进行运动学和动力学仿真。然后根据仿真结果,摘取关键点数据,对伺服电动机以及减速机进行计算选型并确定传动方式。再确定各个部件的连接方式,同时对机身进行结构设计,利用Soildworks建立整体的三维模型。最后,利用Ansys Workbench对机身,曲轴,以及连杆进行有限元仿真,对其结构强度进行校核,保证整体运行过程中的安全性与稳定性。

Compared with the traditional press machine, servo press machine not only has the advantages of simple structure, easy maintenance, low energy consumption, but also can complete complex processing technology and improve production efficiency. In this paper, a 100 kN servo press experimental platform is designed based on multi-link mechanism. Firstly, the specific size of press mechanism is determined. Kinematics and dynamics simulation is carried out in Adams. Then, according to the simulation results of Adams, the data of key points are calculated and used to select servo motor and reducer based on the selection principle of the servo motor, and the drive mode is then determined. Next, the connection mode of each parts is determined and the structure of the press body is designed. Also, the whole 3D model is established by using Soildworks. Finally, the finite element simulation of the press body, crankshaft and connecting rod are carried out by using Ansys Workbench. The structure strength is checked to ensure the safety and stability in the whole operation process.