Method and Manufacturing Installation for Producing a Plurality of Workpieces

A manufacturing installation for producing a plurality of workpieces, the manufacturing installation comprising:

• a first manufacturing machine having a first moveable machine element;
• a first machine controller configured to control the first moveable machine element in order to produce a workpiece in a plurality of first successive manufacturing steps, wherein the first machine controller controls the first moveable machine element along a plurality of first movement paths using a plurality of first control commands determined based on a data set defining desired workpiece characteristics;
• a plurality of first process parameter detectors configured to record a plurality of first process parameters during the plurality of first successive manufacturing steps in order to thereby obtain a respective first process parameter sequence for each process parameter of the plurality of first process parameters;
• a first correction controller associated with the first machine controller;
• and
• a metrology device configured to determine actual characteristics of a produced workpiece,
• wherein the first correction controller includes at least one processor configured to:
• map the plurality of first process parameter sequences onto the plurality of first successive manufacturing steps in order to obtain first sequential mapping data, the first sequential mapping data associating each first control command from the plurality of first control commands with first process parameters recorded at a time when the respective first control command was executed,
• obtain deviations between the actual workpiece characteristics and the desired workpiece characteristics,
• generate first error correction commands based on the deviations and the first sequential mapping data, and
• determine a plurality of modified control commands for the first machine controller based on the first error correction commands.

A computer program product comprising program code stored on a non-transitory data storage medium and configured to carry out a method, when the computer program code is executed on at least one processor of a manufacturing installation including:

• a first manufacturing machine having a first moveable machine element,
• a first machine controller configured to control the first moveable machine element in order to produce a workpiece in a plurality of first successive manufacturing steps, wherein the first machine controller controls the first moveable machine element along a plurality of first movement paths using a plurality of first control commands determined based on a data set defining desired workpiece characteristics,
• a plurality of first process parameter detectors configured to record a plurality of first process parameters during the plurality of first successive manufacturing steps in order to thereby obtain a respective first process parameter sequence for each process parameter of the plurality of first process parameters,
• a first correction controller associated with the first machine controller, and
• a metrology device configured to determine actual characteristics of a produced workpiece,
• the method comprising:
• obtaining a plurality of first process parameter sequences recorded during a plurality of first successive manufacturing steps with which a first workpiece is produced, the plurality of first successive manufacturing steps being controlled by a plurality of first control commands executed on a manufacturing controller associated with the at least one processor;
• mapping the plurality of first process parameter sequences onto the plurality of first successive manufacturing steps in order to obtain first sequential mapping data, the first sequential mapping data associating each first control command from the plurality of first control commands with first process parameters recorded at a time when the respective first control command was executed by the manufacturing controller;
• obtaining deviations between actual workpiece characteristics of the first workpiece and desired workpiece characteristics for the first workpiece;
• generating error correction commands based on the deviations and the first sequential mapping data;
• and
• providing the error correction commands to the manufacturing controller.