No abstract

Sample application article offers diagnostic sensor networks. It is shown how it is possible to diagnose production facilities that provide a network containing diagnostic sensors. Comprehensive and systematic view of the use of vibration diagnostics in the factory. Recovery of used vibration diagnostics and technical equipment was carried out on the printing machine Heidelberg Speedmaster directly in active operation of the particular stationery company. Based on the results of measurement of vibration (vibration) deposits are processed and the results are optimal solutions forward.

The article observes the amount of vibration on the bearing house of a turning lathe selected in advance through the change of the revolutions per minute and the thickness of the removed material in frontal type of lathe processing. Increase in mechanical vibration values depending on the value of nominal thickness of splinter was observed during changing technological parameters of the drilling process as a consequence of rotation speed of the motor. The vibration acceleration amplitude course changes depending on the frequencies are evaluated together for 400, 800 and 1200 motor r/min. A piezoelectric sensor of the type 4507B-004 from the Brüel & Kjaer Company was used for monitoring the frequency analysis of the vibration, which was attached to the bearing house of the lathe TOS SV 18RB. The vibration signal measured during the processing and during the time period is transformed through the means of a quick Fourier transformation to the frequency spectrum in the range of 3.0-10.0 kHz. Measured values of vibration acceleration amplitude were processed and evaluated by the SignalExpress software. Graphical abstractUnwanted vibration in machine tools like lathe is one of the main problems as it affects the quality of the machined parts and tool life and creates noise during machining operation. Bearings are of paramount importance to almost all forms of rotating machinery and are the most common among machine elements. The article describes in more detail the issue of vibrations created when machining the material by lathe turning. It also includes execution, experiment evaluation in this field, and comparison of measured vibrations' acceleration amplitude values according to the standards.

No abstract

In different kinds of industries, newer types of machines are implemented, on which higher and higher requirements are given. High level of production is the essential key for scientific and technological progress in different kind of sectors which contain human activity. Improvement, increasing the efficiency and quality of manufacturing processes are connected with the progress in tool machines. Amongst many indicators that describe the technological level of tool machines is the working part, which has the minor position.