Method for determining an X-Y-Z reference coordinate of a workpiece, and machine tool

US11045918B2 · kind B2 · utility

Assignee

• DATRON AG · US

Inventors

• Benjamin Bock · Reinheim, DE
• Gregor Leinfelder · Mühltal, DE
• Maximilian Barnikol · Ober-Ramstadt, DE

Key dates

• Filing date: Dec 20, 2016
• Grant date: Jun 29, 2021
• Expiry date: Jun 5, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01B5/008
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

In a method for referencing a workpiece (2) arranged in a machine tool, an image of the workpiece (2) is first of all created using a camera device (5) of the machine tool and is then displayed on a display device (6). An X-Y display coordinate (9) is selected by a user using the displayed image. A Z reference coordinate is then determined in an automated manner. An X-Y-Z starting coordinate (7) can be calculated on the basis of the Z reference coordinate determined in an automated manner and the X-Y display coordinate (9) input by the user. A measuring probe (8) of the machine tool is then moved in an automated manner to the X-Y-Z starting coordinate (7) and the X-Y-Z reference coordinate of the workpiece (2) is determined on the basis of the position of the measuring probe (8), as predefined by the X-Y-Z starting coordinate (7), by means of a suitable determination method using the measuring probe (8). In order to determine the Z reference coordinate, the measuring probe (8) is moved through the region which can be captured by the camera device (5) along a viewing beam (16) starting from the camera device (5) in the direction of a target point (26) until the measuring probe (8) t…