This paper presents a structured design framework that aims to enhance the functionalities of robotized work cells in machine tending applications. The framework, developed through digital twin simulations in an educational context, addresses the increasing demand for off-line programming, reconfigurable workstations, and reduced installation time. The primary goal of this contribution is to disseminate the specific competencies in engineering students and technicians. The iterative methodology described in this approach enables the design of new systems or the adjustment of existing layouts to meet industrial demands and mitigate current constraints in a virtual environment.