Сalculation of parameters and development of elements of vibrating equipment for free abrasive finishing processing
DOI:
https://doi.org/10.33216/1998-7927-2024-282-2-22-29Keywords:
finishing processing, abrasive tool, reservoir, amplitude of oscillations, frequency of oscillations, polyethylene terephthalateAbstract
The article presents the calculation and substantiation of the main parameters of finishing equipment used at various enterprises for the repair and maintenance of equipment of the machine-building complex of industry. The use of equipment without rigid kinematic connection of the tool and processed parts at the stage of finishing and cleaning operations is substantiated. Based on the analysis of processing methods in a free abrasive tool as the most effective selected method of processing parts in vibrating reservoirs. The selected method allows to clean parts, remove burrs, round the sharp edges and reduce the surface roughness. The main competitive advantage of processing in a free abrasive tool in vibrating reservoirs is the ability to implement simultaneous processing of a large number of parts while achieving the necessary surface quality indicators. Based on the analysis of the characteristics and overall dimensions of the processed parts, the tool and the reservoir, a classifier of parts is presented. The internal dimensions of the vibration finishing equipment reservoir are calculated. The calculation of the operating modes of the equipment was carried out with the selection of the amplitude, frequency and strength of the oscillations created by the vibration exciter. In the process of reservoir synthesizing as the main element of vibration equipment, the use of polyethylene terephthalate (PET plastic) material as an analogue is substantiated. The use of polyester materials allows to reduce the labor intensity, increase the economic efficiency of production and ensure compliance with environmental standards both in the production process and during further recycling. To check the strength characteristics of the reservoir made of PET plastic, the modelling was carried out in a specially developed mode, in which the amplitude, frequency and force of oscillations exceeded the similar maximum indicators of the operating modes by 70%. On the basis of the data obtained as a result of modeling, a comparative analysis of the strength characteristics of reservoirs of specialized technological equipment made of steel 3 and polyethylene terephthalate (PET plastic) was carried out. The possibility and expediency of using PET plastic as an analogue material for the production of the reservoir with ensuring of the required strength characteristics are established.
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