Position-dependent compliance compensation in a machine tool
First Claim
1. A method for compensating a position-dependent compliance of a machine tool, comprising the steps of:
- deriving from stored machine data the position-dependent compliance of the machine tool at a tool position of a tool of the machine tool,determining a machining force acting upon the tool during a machining process at the tool position, andmodifying, depending on the derived position-dependent compliance and the determined machining force, at least one machining parameter affecting the machining process at the tool position so as to counteract a displacement of the tool from a desired tool position caused by the position-dependent compliance of the machine tool and the machining force.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and a device for position-dependent compliance compensation in a machine tool is disclosed. The compliance of the machine tool is derived at a position of a tool of the machine tool from machine data stored in memory, a machining force acting on the tool during a machining process at this position is determined, and at least one machining parameter that has an influence on the machining process is derived at this position in dependence on the derived compliance and the machining force so as to counteract a displacement of the tool with respect to a desired position caused by the compliance of the machine tool and the machining force. This optimizes the machining time and/or contour fidelity when machining a workpiece with a machine tool.
-
Citations
30 Claims
-
1. A method for compensating a position-dependent compliance of a machine tool, comprising the steps of:
-
deriving from stored machine data the position-dependent compliance of the machine tool at a tool position of a tool of the machine tool, determining a machining force acting upon the tool during a machining process at the tool position, and modifying, depending on the derived position-dependent compliance and the determined machining force, at least one machining parameter affecting the machining process at the tool position so as to counteract a displacement of the tool from a desired tool position caused by the position-dependent compliance of the machine tool and the machining force. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A device for compensating a position-dependent compliance of a machine tool, comprising:
-
a memory storing machine data, a compliance deriving unit which derives from stored machine data the position-dependent compliance of the machine tool at a tool position of a tool of the machine tool, a force determining unit which determines a machining force acting upon the tool during a machining process at the tool position, and a machining parameter modifying unit which determines, depending on the position-dependent compliance received from the compliance deriving unit and the machining force received from the force determining unit, at least one machining parameter affecting the machining process at the tool position so as to counteract a displacement of the tool from a desired tool position caused by the position-dependent compliance of the machine tool and the machining force. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
-
29. A machine tool comprising a device for compensating a position-dependent compliance, the device comprising:
-
a memory storing machine data, a compliance deriving unit which derives from stored machine data the position-dependent compliance of the machine tool at a tool position of a tool of the machine tool, a force determining unit which determines a machining force acting upon the tool during a machining process at the tool position, and a machining parameter modifying unit which determines, depending on the position-dependent compliance received from the compliance deriving unit and the machining force received from the force determining unit, at least one machining parameter affecting the machining process at the tool position so as to counteract a displacement of the tool from a desired tool position caused by the position-dependent compliance of the machine tool and the machining force.
-
-
30. A computer program, stored on a non-transitory computer readable, which enables a computer, after the computer program is loaded into a computer, to execute a method for compensating a position-dependent compliance of a machine tool, the method comprising the steps of:
-
deriving from stored machine data the position-dependent compliance of the machine tool at a tool position of a tool of the machine tool, determining a machining force acting upon the tool during a machining process at the tool position, and modifying, depending the derived position-dependent compliance and the determined machining force, at least one machining parameter affecting the machining process at the tool position so as to counteract a displacement of the tool from a desired tool position caused by the position-dependent compliance of the machine tool and the machining force.
-
Specification