To meet the needs of scientific research and teaching, a large quantity of manufacturing equipment are purchased by universities in China,and yet, a considerable amount of manufacturing capacity is wasted. To increase the usage of these equipments, a normalied model with double architecture was established with the aid of the information expression and organization of manufacturing requirements as well as the description of the manufacturing equipment's capability, and an open cloud manufacturing platform for manufacturing equipment was developed. In addition, a user interface strategy based on knowledge engineering was proposed to improve usability of the normalization model in cloud manufacturing platform. Finally, a case study showed that the model and the platform were valid.