Author: BERNARDA GALIĆ
Mentor: prof.dr.sc. ŽELJKO ŠITUM
Faculty: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture
A threaded spindle is a machine part in the form of an elongated screw that is often used in various industrial applications for the tasks of positioning, lifting loads, material handling, etc. Together with the associated parts, they convert the rotational motion of the spindle into the translational motion of a movable body with an internal thread. Threaded spindles are used in applications where high precision and speed are required, such as CNC machines and 3D printers. The screw spindle assembly drive is available in various configurations and designs, but the most common are designs with an electric servo or a stepper motor. However, in some applications, favorable features of pneumatic actuators such as high specific power, insensitivity to overloading and stalling of the drive, safety of operation in explosive environments, high rotation speeds, etc. can give an advantage to the use of pneumatic motors compared to commonly used electric motors. The position is measured using an incremental encoder mounted using two pulleys and a belt connected to the movable part of the threaded spindle. The system is managed using the Controllino control device.