Automatic Orientation of Symmetrical Hold-Down Spring for Assembly to Print Magnet Subassembly
Original Publication Date: 1988-Jun-01
Included in the Prior Art Database: 2005-Feb-15
One workstation of an automated printhead assembly line assembles several parts, including a Hold-down Spring, to a Print Magnet Subassembly. The figure illustrates the workscope and shows that the perimeter of the Hold-down Spring is a symmetrical circular shape. Due to this symmetry the spring(s) could be loaded into the tote, bringing them to the workstation in two ways, one being 180 degrees rotationally displaced from the other. However, an off-center notch on one side of the spring identifies the correct orientation. In the present embodiment, the spring is unloaded from the tote by a robot and placed into a checking/orienting mechanism. A photo-eye then checks for the presence of the notch.