Arrangement for the transport and positioning of workpiece carriers

Arrangement for the transport and positioning of workpiece carriers (WT) are in which the workpiece carrier (WT) with a toothed belt transport device (5) various processing stations supplied in technical systems, wherein the workpiece carriers are provided on their underside with a toothing, with the toothed belt (5) of the transport device can be coupled, characterized in that the transport belt (5) is double-sided provided with a toothing that, after the lifting of the teeth of the workpiece carrier (WT) of the belt teeth in the respective processing stations its position relative to the toothed belt (5) can be corrected and is carried out a position fixing of the workpiece carrier in three coordinate directions, by retraction of the workpiece carrier (WT) in a frame-fixed rail (10) and by means of a three-point contact between the workpiece carrier (WT) and fixed to the frame stop elements.