FASTENER FORMING MACHINE

摘要

A hole forming apparatus comprises a workpiece transfer mechanism that 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 into contact with a rotating forming tool. The forming tool includes a tool adapter head that holds various forming implements such as cutting blades or drill bits. The head also accommodates broachers and reamers, in which case a precision logic control detects and rejects defective workpieces that have no holes to broach or ream. The apparatus may also include a positive stop that prevents workpieces from overshooting the end of a forming stroke.