The feed drive regulates the feed speed , which can be constant or variable or leads to the workpiece approaching the tool with precise positioning. Different motors and gears can be used depending on the specific requirements . Asynchronous motors are usually used at a constant feed rate . Further motor types used are stepper motors , synchronous motors , linear motors or torque motors . The feed and the speed adjustment are usually carried out via electronic controls, but mechanical gears such as toothed gears can also be used to set the speed.
Most motors generate a rotational movement that needs to be converted into linear movement for the feed. The peripheral speed can be converted into a propulsion speed, for example, by means of a gear unit consisting of threaded spindles or racks .
- Rico Emmler, Hans-Jürgen Gittel, Thorsten Leps, Maximilian Ober, Frieder Scholz, André Wagenführ: Woodworking. In: André Wagenführ, Frieder Scholz: Taschenbuch der Holztechnik. Specialized book publisher at Carl Hanser Verlag, Leipzig 2008; P. 285 ff. ISBN 978-3-446-22852-8 .