Axis control method
AssigneeTRUMPF Werkzeugmaschinen GmbH + Co. KG
InventorWolfgang Scholich-Tessmann
Life of this patent
Estimating the term…
Abstract
Methods and devices are provided for adjusting the relative position and/or relative movement between a workpiece and a tool of a machine tool in the direction of an axis. An actuating variable for a basic axis comprising one or more drives is generated in the first controller of a basic axis control system, an actuating variable for a higher-dynamic additional axis comprising a drive is generated in a second controller of an additional axis control system, and a third actuating variable, which is fed both to the additional axis control system and to the basic axis control system, is generated in a third controller.
Claims16
A method for adjusting the relative position, relative movement, or both, between a workpiece and a tool of a machine tool, the method comprising:
- generating a first actuating variable for a basic axis in a first controller of a basic axis control system, wherein the basic axis comprises one or more drives acting in a first direction with a first dynamic movement;
- generating a second actuating variable for an additional axis in a second controller of an additional axis control system, wherein the additional axis comprises at least one drive acting in the first direction with a second dynamic movement that is higher than the first dynamic movement;
- and
- generating a third actuating variable, which is fed both to the additional axis control system and to the basic axis control system, in a third controller;
- wherein a combined movement of the basic axis and the additional axis in the same direction results in an adjustment of the relative position, relative movement, or both, between the workpiece and the tool of the machine tool.
A machine tool comprising:
- a basic axis control system, comprising a first controller for determining an actuating variable for a basic axis, the basic axis comprising one or more drives for the movement of a tool or a workpiece in an axis direction,
- an additional axis control system, comprising a second controller for determining an actuating variable for an additional axis, the additional axis comprising one or more drives for the movement of a tool or workpiece in the same axis direction, wherein a dynamic movement of the additional axis is higher than a dynamic movement of the basic axis, and
- a third controller for generating a third actuating variable, the third actuating variable being fed both to the basic axis control system and to the additional axis control system,
- wherein the basic axis and the additional axis are connected mechanically one behind the other.
A machine tool comprising:
- a basic axis control system comprising a first controller for determining an actuating variable for a basic axis, wherein the basic axis comprises one or more drives for moving a tool or a workpiece in an axis direction;
- an additional axis control system comprising a second controller for determining an actuating variable for an additional axis, wherein the additional axis comprises one or more drives for moving the tool or workpiece in the same axis direction, and wherein the basic axis and the additional axis are connected mechanically one behind the other so that movement of the additional axis acts in the same direction as movement of the basic axis;
- a third controller for generating a third actuating variable, wherein the third actuating variable is fed both to the basic axis control system and to the additional axis control system;
- a first device for measuring the actual value of the basic axis;
- a second device for measuring the actual value of the additional axis;
- an element for determining an actual value hist, wherein the element is connected to the first device and to the second device, and wherein the actual value hist comprises an overall position value of the basic axis and the additional axis based on the actual value of the basic axis and the actual value of the additional axis;
- and
- a comparison device configured to generate a deviation between a setpoint value hsoll and the actual value hist, and to feed the deviation to the basic axis control system and to the additional axis control system.
Dependencies are inferred from the claim text.