US 12,443,163 B2
Operating method for a machine tool, computer program product, control unit and machine tool
Jochen Bretschneider, Owingen (DE)
Assigned to Siemens Aktiengesellschaft, Munich (DE)
Appl. No. 18/020,343
Filed by Siemens Aktiengesellschaft, Munich (DE)
PCT Filed Jul. 1, 2021, PCT No. PCT/EP2021/068115
§ 371(c)(1), (2) Date Feb. 8, 2023,
PCT Pub. No. WO2022/033761, PCT Pub. Date Feb. 17, 2022.
Claims priority of application No. 20190289 (EP), filed on Aug. 10, 2020.
Prior Publication US 2023/0305522 A1, Sep. 28, 2023
Int. Cl. G05B 19/4093 (2006.01); G05B 19/4061 (2006.01)
CPC G05B 19/40932 (2013.01) [G05B 19/4061 (2013.01); G05B 19/40937 (2013.01); G05B 2219/43031 (2013.01); G05B 2219/49365 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for operating a machine tool, comprising:
a) providing a control command set via which a desired machining of a workpiece is defined;
b) providing an actual contour of the workpiece;
c) calculating a first material entrance point of a tool into the workpiece based on the actual contour of the workpiece; and
d) generating a first positioning command for an approach to the first material entrance point;
wherein the first positioning command specifies a track path which differs from a track path specified by the control command set;
wherein said calculating is performed via a collision avoidance unit of the machine tool;
wherein the track path has an abbreviated traverse section and the actual contour of the workpiece is produced by detection of the workpiece;
wherein the first positioning command generated during said generating is dominant in comparison to a specification of the control command set; and
wherein the method is performed in real-time.