Locating unit for work having a locating bore and an embossed portion formed about the locating bore

A locating unit for a plate type work having a locating bore formed therethrough, the locating unit comprising:

• a locating pin configured to be passed through the locating bore to position the plate type work;
• a work seating surface configured on a root portion of the locating pin, for the plate type work to be seated thereon for the positioning of the plate type work, as the locating pin is passed through the locating bore;
• and
• a detector provided on the work seating surface, and configured to detect the plate type work seated thereon, wherein the detector is a separate element with respect to the locating pin, and wherein the detector comprises a detection pin operative to pass through the work seating surface, for detection of the plate type work seated on the work seating surfaces,
• wherein the detection pin is located a distance from the locating pin that is less than a radius of an outer profile of a cross-section of the locating pin, the cross-section being taken in a plane normal to a direction of projection of the locating pin.