This diploma thesis deals with the design and virtual commissioning of a robotic workplace for the assembly of an electric motor shaft. The theoretical part of the thesis summarizes the knowledge about virtual commissioning and briefly introduces the simulation program Process Simulate from the Tecnomatix software family. The practical part describes the design of a new robotic workplace for pre-assembly of rotors, which is to replace the three workplaces of manual assembly. The design was made on the basis of an analysis of the current state of the manual assembly process and using multicriteria analysis. The next section describes the process of creating a simulation model in the Process Simulate program and creating a PLC control program...