Patent ID: 8782879

Claim:
A workpiece transfer apparatus comprising: a nozzle unit; and an imaging unit, wherein the nozzle unit comprises a tubular body having opposed first and second ends, a first suction hole opening at the first end of the tubular body, an end face member sealing the second end of the tubular body, and a second suction hole opening in the tubular body and joined to a suction pathway connected to a suction device, the imaging unit is positioned opposite the end face member, and at least part of the end face member is transparent, so that the imaging unit is able to capture, through the end face member and the suction hole, an image of a pattern for positioning of a workpiece, the pattern being located on a surface of the workpiece that is in contact with the first end of the tubular body, when the workpiece is held by suction at the first suction hole at the first end of the tubular body.