The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 2022
Filed:
Mar. 17, 2017
Ivoclar Vivadent Ag, Schaan, LI;
Gottfried Rohner, Altstätten, CH;
Christian Seiler, Zürich, CH;
Ivoclar Vivadent AG, Schaan, LI;
Abstract
The invention relates to a system of a method for controlling a machine tool, and a workpiece, in particular a milling blank, and the method for machining this workpiece, said machine tool comprising a robot arm movable in at least 2, in particular at least 3 spatial axes in a range of motion, said robot arm carrying, guiding and moving at least one workpiece, possibly by means of a workpiece holder, with a control unit for controlling the machine tool. The machine tool () comprises a sensor, in particular a spatially fixed optical sensor or is assigned said sensor, whose detection range () at least partially overlaps the range of motion. The workpiece () comprises a change in geometry, in particular a hole (), is moved in the detection range () by the robot arm (), and upon detection of the hole () by the sensor the control unit determines a reference point, reference axis and/or reference surface for controlling the machine tool ().