裂解连杆夹钳机构动力学仿真及试验

Dynamics simulation and test of pincers mechanism for fracture splitting of connecting rod

介绍了裂解连杆自动化生产线步进梁机械手夹钳机构。采用机械系统仿真软件AD-AMS,对连杆夹钳手部的工作过程进行一系列动力学仿真。根据仿真结果,对手部进行结构优化,确定连杆与定位夹具间隙的最佳值,从而确保夹钳满足夹持传送仿真中的基本设计要求。根据优化结果,进行了直连杆夹钳手部的物理试验,试验证明:当夹具间隙大于0.15mm,大小头孔倒角大于0.5mm×45°时,直连杆夹钳手部工作稳定可靠,夹持效果好。

The pincers of manipulator with step-walking beam in the automatic production line of the fracture splitting connecting rod was briefly introduced.A series of dynamics simulations were performed for the pincers jaw using the mechanical system simulation software ADAMS.Based on the simulation results,the pincers jaw structure was optimized,the optimal clearance between the connecting rod and the locating jig was defined,eusuring the pincers meet the basic requirements during the simulation of clamping and transmitting.On the basis of optimization results,the physical test of the pincers jaw for the straight connecting rod was performed and its results showed that it works with stability,reliability and good clamping effect while the jig clearance and the chamfer of the big/small end bores are more than 0.15 mm,0.5 mm×45°,respectively.