Abstract:

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.

Key words: mechanical engineering, connecting rod, fracture splitting, dynamics simulation, ADAMS, pincers mechanism