Augmented reality as an aid for the use of machine tools

This article presents a work in progress of using augmented reality as a way to help handling computer numerical control (CNC) machine tools. Several reasons justify the use of augmented reality in machine tools: (i) a high complexity of using such machines, especially for beginners; (ii) low ergonomics since the operator has to move continuously between the machine window and a control screen to ensure smooth operations; (iii) the window is often obstructed by the lubricant, therefore the operator must often rely only on information displayed by the control screen; (iv) a non-user-friendly interface of the machine; and (v) a complex maintenance operation. In this work, a prototype of a system allowing an operator to improve its working conditions and better handle CNC machines using ar devices is proposed. These devices are positioned in front of the machine, connect to it and display real-time information, such as the operating conditions and a 3D representation of the cutting tool motion. A user interface was also designed to manage operators’ profiles with customized information. The system was tested by several users who confirmed its potentialities to assist machine operators in their work. Other possibilities of this system are under investigation, such as a training tool for beginners and a guide for machine maintenance.