Molding technology for crankshaft forged piece flanges capable of being accurately grabbed by robot

The invention discloses a molding technology for crankshaft forged piece flanges capable of being accurately grabbed by a robot. The molding technology comprises the following steps: utilizing a CAE technology, stimulating and analyzing the shapes of pre-forged flanges and finish-forged flanges by using an FORGE software, determining the sizes of the flanges according to the shapes, designing the position of a flange positioning table, and finally molding the flanges. The technology has the advantages that the molding of the crankshaft forged piece flanges is stable, the accurate grabbing rate of the robot is high, fully-automatic forging is guaranteed, and the production profitability is substantially improved.