Conveyor system

A conveyor system for conveying devices for receiving components to be welded together into and out of a welding cell, the conveyor system comprising:

• a conveying vehicle comprising a chassis, rollers for displacement of the conveying vehicle on a subfloor, a superstructure carried vertically adjustably on the chassis, and a positioning/holding formation provided on the superstructure;
• at least one device carrier for receiving components to be welded together in a position intended for welding together in relation to one another, wherein the at least one device carrier comprises a counter-positioning/holding formation, which meshes with or can be caused to mesh with the positioning/holding formation, for presetting a conveying position of the device carrier on the superstructure;
• and
• a first coupling unit provided at a welding cell, wherein the at least one device carrier comprises a second coupling unit, which can be caused to mesh with the first coupling unit, for detachably fixing the at least one device carrier at the first coupling unit, wherein one of the first coupling unit and the second coupling unit has a pushing meshing recess and the other of the first coupling unit and the second coupling unit has a pushing meshing body that can be pushed into the pushing meshing recess in a pushing direction, wherein the pushing meshing recess having a dovetail inner profile forms an undercut and the pushing meshing body having a dovetail outer profile, pushed into the pushing meshing recess, extends behind the undercut.