Controller for a tool drive and methods for using a tool drive
AssigneeThe Boeing Company
InventorsJose A. Blanco, Andreas Bartl, Tobias Weber
Life of this patent
Estimating the term…
Abstract
A controller for a tool drive that collects force data and displacement data from the tool drive. The controller generates a stiffness model representing a workpiece using the force data and the displacement data. The controller further collects a force signal from the tool drive. The controller determines deflection of the workpiece using the force signal and stiffness model. The controller determines a resonant frequency of the workpiece using the stiffness model. The controller modifies an oscillation frequency and/or a rotational frequency of a spindle of the tool drive based on the resonant frequency. The controller also determines a location of a tip of the tool drive using the force signal.
Claims23
A controller for a tool drive, the controller having instructions that are executable to:
- collect force data from a control unit of the tool drive, the force data representing a force applied to a spindle of the tool drive in response to engagement of a tip of the tool drive with a workpiece;
- collect displacement data from the control unit of the tool drive, the displacement data representing a displacement of the spindle of the tool drive in response to engagement of the tip of the tool drive with the workpiece;
- generate a stiffness model representing the workpiece using the force data and the displacement data;
- and
- map the stiffness model to a geometry of the workpiece.
A controller for a tool drive, the controller having instructions that are executable to:
- collect a force signal from a control unit of the tool drive, the force signal representing a force applied to a spindle of the tool drive in response to engagement of a tip of the tool drive with a workpiece;
- collect a displacement signal from the control unit of the tool drive, the displacement signal representing a displacement of the spindle of the tool drive in response to engagement of the tip of the tool drive with the workpiece;
- and
- use the force signal and the displacement signal to determine a location of the tip of the tool drive relative to a fixed coordinate system and a position of the workpiece relative to the fixed coordinate system from the location of the tip.
A method for using a tool drive, the method comprising steps of:
- collecting force data from a control unit of the tool drive, the force data representing a force applied to a spindle of the tool drive in response to engagement of a tip of the tool drive with a workpiece;
- collecting displacement data from the control unit of the tool drive, the displacement data representing a displacement of the spindle of the tool drive in response to engagement of the tip of the tool drive with the workpiece;
- and
- generating a stiffness model representing the workpiece using the force data and the displacement data.
A method for using a tool drive, the method comprising:
- collecting a force signal from a control unit of the tool drive, the force signal representing a force applied to a spindle of the tool drive in response to engagement of a tip of the tool drive with a workpiece;
- collecting a displacement signal from the control unit of the tool drive, the displacement signal representing a displacement of the spindle of the tool drive in response to engagement of the tip of the tool drive with the workpiece;
- and
- determining a location of the tip of the tool drive relative to a fixed coordinate system using the force signal and the displacement signal.
Dependencies are inferred from the claim text.