Authors: O.A. Medvedev, V.F. Grigorev

Title of the article: Calculation of fixed compensators of different lengths taking into account the accuracy of assembly works

Year: 2022, Issue: 2, Pages: 4-11

Branch of knowledge: 2.5.6. Engineering technology

Index UDK: 621.91.002

DOI: 10.26730/1999-4125-2022-2-4-11

Abstract: Known methods for calculating dimensional chains while achieving assembly accuracy by the control method have significant drawbacks, which are the result of an insufficiently thorough analysis of dimensional relationships of assembly technology elements. The article analyzes the influence of errors in assembly work on the accuracy of assembly of machines and describes the development of rational schemes for compensating the total stray field of the constituent links of the design dimensional chain when using fixed compensators of different lengths. On the basis of the obtained compensation schemes and the provisions of the probability theory, a condition was drawn up for achieving the accuracy of the closing link of the assembly design dimensional chain, mathematical expressions for calculating the rational values of the compensation stage, the sizes of the expansion joints of different stages, the number of expansion joints of different stages for a batch of assembled products. This technique can be useful for process engineers involved in the design of technological processes for assembling machines.

Key words: dimensional chain control method compensator assembly errors compensation scheme compensation stage probability of compensators

Receiving date: 01.03.2022

Approval date: 30.03.2022

Publication date: 29.04.2022

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