Actual Problems in Machine Building 2019 Vol. 6 No. 1-4

Актуальные проблемы в машиностроении. Том 6. № 1-4. 2019 Инновационные технологии в машиностроении ____________________________________________________________________ 27 THE DECREASE IN THE NUMBER OF COLLECTED PAIRS BY THE METHOD OF FLOATING THE VALUES OF THE MATING PARTS Bogutsky V.B. , Ph.D (Engineering), Associate Professor, e-mail: bogutskivb@yandex.ru Shron L.B. , Ph.D (Engineering), Associate Professor, e-mail: shronlb@mail.ru Gordeeva Е.S. , Senior Lecturer, e-mail: eleonora.gordeeva@yandex.ru Sevastopol State University, 33 University st., Sevastopol, 229053, Russian Federation Abstract In production conditions, the assembly of parts in the node is accompanied by non-assembled pairs. The increase in the collection is achieved by overestimating (understating) the size of one of the details, thus providing a guaranteed allowance for fitting. At the same time, the inflated nominal value of the customized details provides a high percentage of assembly, but increases the labor costs of the fitting work, and the understated nominal leads to an increase in the number of not assembled pairs. To solve this problem, an algorithm for assigning the technological size to the details that are fitting during assembly. It is shown that one more criterion for determining the nominal size of the customized details can serve as economic indicators. Keywords assembled pairs of details, the allowance for the detail for fitting,, detail for fitting, the cost of technology