Analysis of errors of long holes and methods for their control

Abstract

N order to study the influence of finishing and final operations on the geometry of the barrel, the principles of operation of the mobile mechatronic device being created are determined. The aim of the invention is to test the proposed method for measuring the diameter of the barrel bore, on the basis of which it is possible to create a gamut of devices suitable for monitoring barrels of any caliber. One of the requirements for the device is low cost, durability, simplicity of the measurement process while maintaining high accuracy. The technical result is an increase in the accuracy of measurements with a reduction in the cost of measuring equipment, detection of defects in the diameter of the barrel bore. The paper gives an analysis of the parameters influencing the density and accuracy of firing. Modern devices and methods for measuring long holes with macrorelief are considered. In this section, the most famous measuring instruments are considered. For clarity, the devices are presented in a comparative table, which indicates: the sensor element, components, advantages and disadvantages. Sensors working on different grounds are considered, with the help of which the device under development can be realized. A comparative table of sensing elements is also given, where the principle of operation, advantages and disadvantages are considered. Based on the analysis, one of the promising types of measurement of the parameters of a hole with a small diameter is the contact method based on the use of a piezoelectric sensor as a sensitive element. The cost of the measuring complex is insignificant and can be made in a large number, at affordable prices for a simple consumer. From the point of view of the industry it is easy to manufacture. The presence of such a device will allow monitoring the parameters of the barrel channel of both Russian and foreign manufacturers, for analysis, after some time, it will be possible to establish the wearing process of the barrel bore during its operation and to reveal the regularity of wear.