The dissertation thesis deals with research in the field of methodologies used in the design process, focusing primarily on the design of the concept of modular single-purpose machines, focusing on the environment of the automotive industry. The theoretical part of the thesis analyses and describes concepts such as the design process, conceptual design, innovative methods, and modularity. The analysis of these words is then the basis for the design of a methodology that should give the process of creating the concept systematically. At the same time, it aims to support the innovation (QFD and TRIZ method) of the given process and to bring new solutions to the concepts of single-purpose machines. In addition to innovation, the methodology takes into account a modular approach to concept creation together with the rapidly changing conditions of the automotive industry. The last part of the work is formulated assignment, while the described methodology was applied to this specific assignment. Finally, the concept of a riveting device for the automotive industry was proposed. The resulting design of the concept was modular, while the conception process was supported by the QFD and TRIZ methods. Important equipment requirements were better specified by the QFD method, and TRIZ identified important technical inconsistencies in the design right at the beginning of the process. The final evaluation of the resulting concept determined that the concept was sufficient and was made a detailed design of the device. In the last chapter of the dissertation thesis, it is possible to look at the new device, which met all the important requirements placed on it.