Avoiding collision damage of motor spindles through an innovative overload protection system

Different causes lead to unforeseen contact situations between moving components in the working space of machine tools. These collisions can result in damage of the machine components. High cost and machine downtime are the consequences. This article presents a solution for the reduction of contact forces in case of collision. Consequently damages of the machine structure and the main components, such as the motor spindle, can successfully be avoided. Further, a modified mechanism with higher stiffness and improved process protection system properties will be described and compared to the current status