Automatic sewing assembly - having a sewing station having a sewing machine for sewing two material pieces (4, 5) which are placed one on top of the other, - having a support plate for the material pieces (4, 5), - having a feeding station for feeding and preparing the material pieces (4, 5), which is arranged upstream of the sewing station and which has a positioning stop for setting a defined relative position of the two material pieces (4, 5) relative to the support plate, - having a cutting apparatus having two cutting devices (11, 12) which are arranged such as to be spaced from each other for peripheral cutting of a seam allowance of a seam which is to be formed by the sewing station between the cuts produced in this manner for sewing the two material pieces (4, 5), - characterised by an adjustment device for driven adjustment of the mutual spacing of the two cutting devices (11, 12), -- having a first drive apparatus arranged between a first cutting device carrier and a second cutting device carrier, for guided displacement of the first cutting device carrier relative to the second cutting device carrier along the spacing between the two cutting devices (11, 12); -- having at least a second drive apparatus arranged between a frame of the cutting apparatus and a component which is fixed in position relative to the support plate, for guided displacement of the cutting apparatus relative to the support plate transversely relative to the spacing between the two cutting devices (11, 12). - having a sewing station having a sewing machine for sewing two material pieces (4, 5) which are placed one on top of the other, - having a support plate for the material pieces (4, 5), - having a feeding station for feeding and preparing the material pieces (4, 5), which is arranged upstream of the sewing station and which has a positioning stop for setting a defined relative position of the two material pieces (4, 5) relative to the support plate, - having a cutting apparatus having two cutting devices (11, 12) which are arranged such as to be spaced from each other for peripheral cutting of a seam allowance of a seam which is to be formed by the sewing station between the cuts produced in this manner for sewing the two material pieces (4, 5), - characterised by an adjustment device for driven adjustment of the mutual spacing of the two cutting devices (11, 12), -- having a first drive apparatus arranged between a first cutting device carrier and a second cutting device carrier, for guided displacement of the first cutting device carrier relative to the second cutting device carrier along the spacing between the two cutting devices (11, 12); -- having at least a second drive apparatus arranged between a frame of the cutting apparatus and a component which is fixed in position relative to the support plate, for guided displacement of the cutting apparatus relative to the support plate transversely relative to the spacing between the two cutting devices (11, 12). -- having a first drive apparatus arranged between a first cutting device carrier and a second cutting device carrier, for guided displacement of the first cutting device carrier relative to the second cutting device carrier along the spacing between the two cutting devices (11, 12); -- having at least a second drive apparatus arranged between a frame of the cutting apparatus and a component which is fixed in position relative to the support plate, for guided displacement of the cutting apparatus relative to the support plate transversely relative to the spacing between the two cutting devices (11, 12).