HYDRAULIC CONTROL OF MACHINE TOOLS.

Depending on the production level and flexibility required, the spectrum of machine tools between single machines, NC machines and transfer machines has broadened considerably. When material transport and measurement facilities are also included within the production process, the system demands are relatively high if the highest degree of utilisation is to be achieved with the minimum of downtime. Safety and serviceability then become criteria and assume considerable importance. This article discusses the subject in terms of feed drives, built-on controls, and mechanical components.