Method for welding sheet metal sections into patchwork blanks having the following steps: - providing the sheet metal sections (2, 3) to be welded together for handling by means of handling robots (HR1, HR2); - the handling robots (HR1, HR2) place a first sheet metal section and at least one further sheet metal section in an aligned position on the first sheet metal section, wherein the handling robots (HR1, HR2) position the first sheet metal section on a centring table in a centring position where it is prefixed to the at least one further sheet metal section; - the at least one further sheet metal section is prefixed to the first sheet metal section by spot welding using a first welding robot; - the prefixed sheet metal sections (2, 3) are transferred by means of a handling robot to a welding carousel, where they are fixed in a substantially vertical position onto a holder which has a C-shaped frame structure and is open towards the radially outer side of the welding carousel, wherein a plurality of universal clamping devices for flat sheet metal sections (2, 3) are arranged on the holder, wherein the clamping devices engage around the sheet metal sections (2, 3) at an edge region, wherein the clamping devices are arranged on an upper leg, on a lower leg and on a vertical leg of the holder; - the welding carousel guides the prefixed sheet metal sections (2, 3) past a plurality of welding robots (WR1, WR2, WR3, WR4), in order to carry out further spot welds, wherein loading and unloading the welding carousel is carried out parallel to the welding process; - lastly, the finished patchwork blank reaches a transfer position of the welding carousel where it is removed by a handling robot. - providing the sheet metal sections (2, 3) to be welded together for handling by means of handling robots (HR1, HR2); - the handling robots (HR1, HR2) place a first sheet metal section and at least one further sheet metal section in an aligned position on the first sheet metal section, wherein the handling robots (HR1, HR2) position the first sheet metal section on a centring table in a centring position where it is prefixed to the at least one further sheet metal section; - the at least one further sheet metal section is prefixed to the first sheet metal section by spot welding using a first welding robot; - the prefixed sheet metal sections (2, 3) are transferred by means of a handling robot to a welding carousel, where they are fixed in a substantially vertical position onto a holder which has a C-shaped frame structure and is open towards the radially outer side of the welding carousel, wherein a plurality of universal clamping devices for flat sheet metal sections (2, 3) are arranged on the holder, wherein the clamping devices engage around the sheet metal sections (2, 3) at an edge region, wherein the clamping devices are arranged on an upper leg, on a lower leg and on a vertical leg of the holder; wherein a plurality of universal clamping devices for flat sheet metal sections (2, 3) are arranged on the holder, wherein the clamping devices engage around the sheet metal sections (2, 3) at an edge region, wherein the clamping devices are arranged on an upper leg, on a lower leg and on a vertical leg of the holder; - the welding carousel guides the prefixed sheet metal sections (2, 3) past a plurality of welding robots (WR1, WR2, WR3, WR4), in order to carry out further spot welds, wherein loading and unloading the welding carousel is carried out parallel to the welding process; - lastly, the finished patchwork blank reaches a transfer position of the welding carousel where it is removed by a handling robot.