Production cell with workpiece return

A method for processing a workpiece (1;

• 2) in a production cell (10), comprising:
• providing the workpiece (1;
• 2) to a workpiece conveyor device (41), the workpiece conveyor device (41) comprising a plurality of workpiece carriages (61);
• conveying the workpiece (1;
• 2), by the workpiece conveyor device (41), to a workpiece processing device (81;
• 91);
• processing, by workpiece processing device (81;
• 91), an upper side of the workpiece (1;
• 2);
• conveying the workpiece (1;
• 2), by the workpiece conveyor device (41), from the workpiece processing device (81;
• 91) to a workpiece transfer station (100);
• transferring the workpiece (1;
• 2), by a workpiece tilting device (111) arranged at the workpiece transfer station (100), from a horizontal orientation on the workpiece conveyor device (41) into a vertically inclined orientation to a workpiece return device (140);
• conveying the workpiece (1;
• 2), by the workpiece return device (140), into a workpiece temporary storage device (158) while in the vertically inclined orientation;
• removing the workpiece (1;
• 2) from the workpiece temporary storage device (158);
• providing the workpiece to the workpiece conveyor device (41) in an upside-down orientation for processing the workpiece a second time;
• conveying, by the workpiece conveyor device (41), the workpiece (1;
• 2) to the workpiece processing device (81;
• 91);
• and
• processing, by the workpiece processing device (81;
• 91), a lower side of the workpiece (1;
• 2).