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AssigneeL & M Machining and Manufacturing, Inc.
InventorsLawrence A. Morath, Jan A. Linthorst, Ronald W. Marchionni, Dennis F. Custer
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A fastener forming apparatus comprises a positive stop that prevents workpieces from overshooting the end of a forming stroke. A workpiece transfer mechanism transfers one unformed workpiece at a time into a workpiece gripper and drives completed workpieces out of the workpiece gripper and onto an exit path. A compound hydro-pneumatic cylinder moves the gripper and one workpiece at a time downward on a forming stroke into contact with a rotating forming tool. A limit switch causes the reciprocator to reverse direction at the end of the forming stroke. The forming tool includes a tool adapter head that holds various forming implements such as cutting blades or drill bits. In one embodiment the forming tool is a groover apparatus that cuts circumferential grooves around fasteners. In this embodiment, the lower limit switch signals a controller to hold the reciprocator at the end of the forming stroke while the groover forms the groove. The groover apparatus includes a limit switch that signals the controller when grooving is complete.
A fastener forming apparatus for forming fasteners from cylindrical workpieces, the apparatus comprising:
Dependencies are inferred from the claim text.