Reduction of labor intensity of manufacturing of openings of a difficult form with use of the controlled boring system.

Abstract

The article reveals the principles of reducing the complexity of manufacturing holes of complex shape using a controlled boring system. The stages of evolution of modern metalworking equipment are determined. The structure of the boring head is characterized and its place in the general metalworking system on the basis of the machine with numerical program control is defined. It is emphasized that today, with the development of production automation, more and more use automatic boring heads, which have automatic radial feed, which makes them more versatile in both machining holes and external surfaces, such heads have a wide range of processing. The characteristics of the automatic boring head are determined and the advantages of the application are emphasized. Thus, the use of automatic boring heads can significantly reduce processing time, increase accuracy and improve the quality of the surface to be treated. Given that boring heads are essentially removable accessories, the range of their applications is quite wide, from coordinate boring machines to aggregate machines based on machining centers. The structural scheme of control of the CNC machine with separation of the main blocks which are a part of it is presented and the scheme of realization of control of turns of a boring head is conditionally opened. It is emphasized that the introduction of a microprocessor control system for positioning the cutter in the boring head will increase the possibility of forming, namely to make shaped, cylindrical, stepped and conical holes in one approach, which will reduce processing time and most importantly control the accuracy of the product. tool. The model of control of a boring head is mathematically formed and the main factors of influence are described. It is emphasized that the technological process is characterized by the cutting force and the position of the boring head and can be represented as the trajectory of its boring edge. It is emphasized that such a control system implements the process of boring holes by forming a trajectory and comparing it with the reference trajectory. The implementation of data transmission by the feedback unit is proposed on the basis of Bluetooth technology, which in today's conditions is budget-friendly and most effective within the stated requirements.