Abstract
The paper proposes a methodology for experimental studies of double-sided face grinding machines on the criterion of heat resistance, including: method of simulating a grinding process; measurement of temperature; measurement of changes in relative angular position of the circles; the measurement of processing errors. The proposed methods for experimental studies of the thermal behavior and errors in the machining of a double-sided face grinder allow for fine-tuning of the machine under production conditions. At the same time, preliminary tests of a double-sided face grinder show that when grinding an industrial batch of cylindrical rollers, excessive temperatures are distributed unevenly across the machine nodes both at idle and during grinding. The ends of the spindle heads and the stand have the greatest excess temperature when working at idle, and when grinding - on the surface of the machine, located in close proximity to the grinding zone. The nature of changes in excess temperatures of characteristic points and coolant when simulating the grinding process on the machine completely coincided with the experimental data obtained on a working machine.
Highlights
The paper proposes a methodology for experimental studies of double-sided face grinding machines on the criterion of heat resistance, including: method of simulating a grinding process; measurement
The proposed methods for experimental studies of the thermal behavior and errors in the machining of a double-sided face grinder allow for fine-tuning of the machine under production conditions
The ends of the spindle heads and the stand have the greatest excess temperature when working at idle, and when grinding - on the surface of the machine, located in close proximity to the grinding zone
Summary
В работе предложена методология экспериментальных исследований двусторонних торцешлифовальных станков по критерию теплоустойчивости, включающая: методику имитации процесса шлифования; методику измерения температур; методику измерения изменений взаимного углового положения кругов; методику измерения погрешности обработки. И третье направление тепловых перемещений кругов – в плоскости YОZ, проходящей через оси шпинделей перпендикулярно станине станка. Оказывающие существенное влияние на качество обработки, так как величина их перемещений соизмерима с величиной непараллельности торцов кругов, также являются критерием оценки качества конструкции станка. Данный станок предназначен для шлифования роликов подшипников, у которых обработка идет с повышенными мощностями шлифования и, как следствие, увеличением погрешности обработки во время работы станка.
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