Збірники наукових праць ЦНТУ

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Розрахунок не зрівноважено утримуваних деталей захватними пристроями роботів
(ЦНТУ, 2019) Павленко, І. І.; Годунко, М. О.; Павленко, И. И.; Годунко, М. О.; Pavlenko, I.; Hodunko, M.
Виконано обґрунтування розрахунку сил затиску в захватному пристрої робота при утриманні деталей зі зміщеним центром мас. Виведено формули для розрахунку даних сил. Встановлено залежності між основними конструктивними характеристиками захватного пристрою та силами затиску. Выполнено обоснование расчета сил зажима в захватном устройстве робота при содержании деталей со смещенным центром тяжести. Выведены формулы для расчета данных сил. Установлены зависимости между основными конструктивными характеристиками захватного устройства и силами зажима. The substantiation of the calculation of the clamping forces in the gripping device of the robot with the maintenance of parts with an offset center of gravity. The formulas for calculating these forces are derived. Dependencies between the main design characteristics of the gripping device and the clamping forces are established. Grippers are one of the responsible executive bodies of industrial robots. Their main feature is that they represent a finite part of the spatially unlocked hand of the robot, which must perform high-speed reciprocating (rotating) movements with the required accuracy. In this case, the grip must reliably hold the transported parts with a minimum of their mass. All this is possible when performing their exact calculations. In a large number of robots of capture operations, it is necessary to keep parts that are not evenly squeezed into it. This may take place, both during initial capture and during the cycle of the operation of work with the detail when it sets it on a machine where it is processed and gets a different shape and size. All these features lead to a change in the power load on the gripper, and, accordingly, to change the working capacity of its quality. The first step in the study of these issues is to determine the required clamping forces of the retained parts. To do this, taking into account all baseline conditions, we compile a calculation scheme, where the detail is clamped with the capture with an asymmetric (not balanced) its placement. In earlier studies, it was found that in determining the forces of clamping of parts, according to such calculation schemes, there may be a condition where the number of complicated equations of equilibrium of the held part is less than the number of unknown clamping forces. Therefore, an additional condition was adopted for solving the task, when the minimum required clamping forces were determined, which then increased to the required stock factor. The same condition we accept in these calculations.
Визначення кутів повороту ведучих ланок адаптивного захватного пристрою
(КНТУ, 2014) Мажара, В. А.; Годунко, М. О.; Кислун, О. А.; Ковальчук, Є. В.; Mazhara, Vitaly; Godunko, Maksim; Kyslun, Оleg; Kovalchuk, Evgeniy
В статті розглядається методика визначення кутів повороту ведучих ланок захватного пристрою промислового робота, призначеного для затиску як призматичних, так і циліндричних деталей. The article presents a designed grip of the robot that is intended to be used for clamping both prismatic and cylindrical parts. The grip is adjusted to the mold (form, shape) of the clamped part by means of installing the clamping jaws in a parallel position when clamping prismatic pieces, and to their further turn while holding the cylindrical ones. The adaptability of this gripping device is being increased by raising the number of driving links, levers and their number of movability. (mobility). For giving the possibility of clamping working pieces of various classes it is necessary to provide the turn of four driving links at a certain angle by servodrives. The above mentioned methods have been worked out in order to determine such angles. The article deals with the calculation formulas for the angles corresponding to the main working conditions of the gripping unit. The carried out method is the first step to the implementation of the system of automatic control of such grippers. By further analysis of kinematic schemes of the grippers and studying the rotation (turning) angle effect of the leading units, the method described here opens the way to enhancement and invention of conceptually new constructions of the industrial robots’ grips.

Збірники наукових праць ЦНТУ

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