RECOMMENDATIONS FOR THE DEVELOPMENT OF GEAR CONTROL METHODS ON CMM

Abstract

This article provides the methodological foundations for building programs designed to control coordinate measuring machines of any type when measuring the parameters of straight-toothed gears. The scope of the described approach to the described problem is considered, as well as the ways and expediency of its further development. The presented technique describes an approximate scheme of movements of the measuring element, as well as some features during its development. The fundamental mathematical dependencies are given, which allow calculating the shape of the lateral surface of the gears based on the results of the coordinate measuring machine, for subsequent evaluation of its errors. The results of measurements for further processing should be stored in the form of arrays, which indicate the numbers of controlled teeth, the left or right sides of the tooth, as well as the level of measurements and the index of the controlled radius. The development of an experimental control program based on this technique showed the possibility of significantly expanding the range of use of coordinate measuring machines that are not equipped with specialized software and additional equipment designed for measuring gears. Terminology, designations and requirements are given in accordance with GOST ISO series (GOST ISO 1328-1–2017 and GOST 13755–2015 (ISO 53:1998)), which differ in some parameters from those previously adopted (GOST 1643–81, GOST 16531–83, GOST 16532–70, etc.).