CALCULATING TOLERANCE OF THE ACTUATORING CHAIN OF THE LATCH LOCK OF THE SAFE BY NUMERICAL METHOD

Abstract

In the manufacture of machines, ensuring the precision of the mechanical structure is one of the basic contents. At the design stage, the engineer needs to quantify the tolerance values of the machine parts based on their kinematic linkage scheme. Size chains are one of the common methods to do this, however spatial sequences with large numbers of strings are not easy to come up with. This paper introduces a numerical method that helps to define the tolerances of spatial structures more accurately and respects the natural dynamic response of the structure than the traditional dimension chain method. We also illustrate the algorithm on a mechanical mechanism is the key system locking the safe. Experimental results on the model and the simulation showed the correctness of the algorithm in terms of fully assembled and assembled components. This method can be applied on clusters of closed or open kinematic chain.