Testing of pneumatic cylinders using time relays

Modern Ukraine needs to expand the scope of pneumatic automation systems in mechanical engineering (impact machines, clamping devices and feed of working tools in machines, manipulators, drives of pneumatic jacks, manual mechanized tools) and mechanical engineering (pneumatic shock absorbers, door opening systems).Both hydraulic and pneumatic actuators have been widely used on hoisting-and-transport, construction, road construction, reclamation machines, and also on technological lines of enterprises that manufacture products of various industries.This work presents theoretical bases of work of pneumatic actuators and a description, construction and purpose of the existing elements of existing pneumatic system components and pneumatic system controls. Were considered the examples of using these elements on a pneumatic stand manufactured by CAMOZZI and modeled how they work in Fluid Sim. Pneumatic cylinders on training stands are used as executive bodies to implement the tasks when working with pneumatic systems, therefore the study of the interaction of the most common elements of stands, such as timers, throttles, various valves and valves with pneumatic cylinders is an important aspect when working with pneumatic systems and the implementation of the tasks set to automatically regulate the motion of the executive bodies in the pneumatic systems. Has been investigated the influence of the setting of pneumatic system elements for the speed of movement and the order of operation of two double-acting pneumatic cylinders with using a pneumatic timer and position sensors. When the system works the role of the time relay was played by a system consisting of a throttle, one-way pneumatic cylinder and a monostable distributor 3/2. By regulating the throttle it was reached endurance in time between the extension of the pneumatic cylinder 1 and the pneumatic cylinder 2.On the circuit board of the pneumatic stand (mechatronic stand) the pneumatic system is implemented according to the scheme, where as executive bodies are engaged two double-acting pneumatic cylinders.It was conducted test of the operation of two double-acting pneumatic cylinders and one single-acting pneumatic cylinder, which acted as a receiver in the time relay. It have been explored parameters which needs to be considered for efficiently designing pneumatic systems.